EP0405204A2 - Method and apparatus for forming zones or tufts of bristles - Google Patents

Abstract

Individual bristles and/or batches of bristles are withdrawn from one or more magazines and are mechanically or pneumatically transferred to positions of alignment with the sockets of one or more forms. The individual bristles and/or batches of bristles are thereupon drawn into the aligned sockets by suction prior to being welded or glued to an adapter which constitutes or forms part of a brush body and defines the open ends of sockets during drawing of bristles into the form or forms.

Description

The invention relates to a method for producing bristle fields for brushes or of bristle bundles for brushes, bristle tufts being filled into perforations in molds, the bristle tufts being formed from individual bristles by separating a bristle supply into bristle tufts, after which the bristles are tied with the shape With the help of an air stream and introduced into the holes in the mold.

The invention further relates to a device for producing bristle fields for brushes or of bristle bundles for brushes, in which the ends of individual plastic bristles of a bristle tuft are fused together and / or with those of a neighboring tuft, with a perforated shape, into which perforations one tuft of bristles fits, feed lines are provided to the mold and a line leads to each hole to be filled, to which lines means for generating an air flow to the mold can be connected.

From DE-PS 845 933 it is already known to continuously withdraw the bristles of tufts of bristles as strands from a supply and to insert them into continuous perforations of a half-shape. On her fastening to be fused later end facing away from these strands are each cut to form bristles of a predetermined length, the later working ends of the bristles being formed at the interface. This means that these working ends are sharp-edged and, for example when used in toothbrushes, pose a risk or injury to the gums. When used as a hairbrush, the scalp is at risk. This applies all the more if the working ends of the plastic bristles should also be given a special geometric shape within a tuft, i.e. the individual tufts should be, for example, conical, hemispherical or beveled, for example when brushing teeth better in the spaces between individual teeth to be able to penetrate.

Trimmed bristles have therefore been subjected to subsequent processing, by means of which the later working end of each bristle is to be rounded off more or less. However, this is only possible and only within limits if an overall flat bristle field is present or is retained.

From DE-OS 23 35 468 it is known to remove the bristles in clusters from a bristle supply with the aid of a removal plate with clamping holes and to convert them into tubular individual shapes, the arrangement of which must correspond exactly to the arrangement of the removal tubes. There is the considerable problem that the edges of the sampling tubes on the one hand and the edges of the individual molds on the other hand can lead to squeezing of bristles that protrude somewhat to the side, so that in a short time the exact parallel position of the bristles in the bristle magazine or stock is no longer present and the tufts can no longer be complete. In addition, a lot of time and a difficult and mechanically demanding device is required to carry out this type of loading of a mold with bristles, so that the device according to this document cannot fulfill the purpose of combining bristles into bristle fields in a rational and inexpensive form and above all as quickly as possible.

From DE-OS 34 05 001 a method of the type mentioned with a corresponding device has become known, the air flow mentioned being generated by means of compressed air. This means that the bristles not only have to be divided into tufts before they are conveyed into the mold, but also have to be fused together, since a conveyance of tufts of tufts but still individual bristles inevitably leads to mutual swirling of the individual bristles by means of compressed air can transport these bristles at different speeds and, above all, because of the curvature of the lines, there is a risk that bristles get caught and then form a jam.

In a complex manner, tufts of bristles must first be separated and fused before they can then be brought into a mold with compressed air, where their fused ends have to be encapsulated again.

This also makes it impossible to achieve an efficient and, above all, rapid production of brush fields and brushes or brushes.

It is therefore an object of the invention to provide a method and also a device of the type mentioned at the outset, with which bristle fields can be formed in a simple and efficient manner from individual bristles and bristle tufts, in which the bristle tufts and the entire bristle field have any geometrical arrangements of the free working ends of the individual Can have bristles and where the ends of the individual tufts of bristles can be spherical, conical, pointed, beveled, etc., but despite such geometric shapes The individual bristles can have rounded ends. At the same time, rational and fast brush or brush production should be possible.

To solve this problem, the method of the type mentioned is characterized in that the air flow for conveying the bristle tufts is generated with negative pressure and that the ends of the bristles facing away from the later free working ends are then fused after being introduced into the perforations in the mold.

This means that the later work ends can be rounded off before they are brought into the mold. Instead of the previous removal of bristles and their fusion into individual tufts, which then have to be encapsulated in a further form, the tuft of bristles that have not yet been fused can be transported into a form with the aid of the negative pressure, where the fusion and connection takes place , so that a higher production speed is possible. In addition, the bristles can be transported into the mold more cheaply and more quickly. Even relatively long conveyor lines can be overcome in this way. Since the flow is caused by negative pressure and not, as in other air or gas conveyances, by positive pressure, more favorable flow conditions are possible in which mutual turbulence of the individual bristles or even jams can be avoided.

The bristles can be introduced into the mold in an approximately vertical orientation. This has the advantage that the insertion of the bristles into the mold can be supported by gravity.

It is particularly expedient if the tufts of bristles are matched by one placed on the mold Perforations such as the mold-equipped holding plate are sucked through, after which the ends of the bristles to be fused protrude beyond the plate or at least protrude into a perforation area which widens towards the top of the plate, and when these bristles are joined together and / or with the plate or with these protrusions protruding in the same direction as the protruding ends of the bristles and optionally fused to the ends of the neighboring bristle tufts.

Such a holding or adapter plate can improve the tufting of the bristles into the mold insofar as, above all, perforations of this holding plate widening against the direction of suction, specifically guide the individual tufts into the perforations of the half-shape and allow them to enter. At the same time, the ends of the tufts of bristles to be connected are held together well and the heat of fusion to be applied at these ends is kept away from those areas of the bristles which are not to be fused together. In addition, this holding plate allows a better connection to a later brush body or may even be the brush body itself under certain circumstances. If, for example, the holding plate is subsequently encapsulated, it can again be avoided that the melt of the spray material gets between the individual bristles, thereby gluing and connecting the tufts of bristles to an excessive length. In this way, therefore, each individual bristle of a tuft of bristles remains free of the neighboring bristle, so that the elasticity of the individual bristles is completely retained despite the fusion and connection above or in the holding plate below it.

If protrusions protruding from the holding plate are also fused to the bristle ends that protrude there, a very stable connection results all bristles within such a bristle field with a holding plate.

A further improvement and refinement of the method according to the invention for the mutual fixing of the individual bristles with one another and also with the holding plate can be achieved by utilizing the conveyance of the bristles by means of negative pressure in the mold in that after the ends of the bristles have melted, the still soft or pasty melt pressurized, in particular underpressure, and thereby pressed or sucked at least partially into spaces between the bristles and / or between them and the holding plate located within the holding plate. The melt can thus further stabilize the bristle areas located within the holding plate and, above all, seal the spaces between bristles in such a way that no bacteria and no toothpaste sludge can penetrate. Advantageously, the negative pressure which is also used for conveying into the mold can be used.

After the bristles have melted, the holding plate can be connected to a brush body, in particular welded, high-frequency welded, glued, permanently locked or screwed. As a result, even those tufts of bristles that are only spherically bonded by their fusion but would otherwise still be displaceable relative to the holding plate can be secured against axial displacement when pressure is applied.

After connecting to the holding plate, the bristle field can then be ejected from the mold together with the holding plate or with the brush body.

Filling the bristles into the mold with the help of negative pressure not only results in a number of advantages the transport, which, in contrast to compressed air transport, can be carried out practically trouble-free and yet very effectively and quickly and allows the transport of the not yet connected, but only individual tufts of bristles, but bristles of different properties can easily be combined in one and the same bristle field . For example, softer bristles with harder bristles can be combined in any bristle pattern, in that some of the suction lines lead to a stock of bristle tufts with further bristles, while harder bristles are led from another stock with additional suction lines of the same shape but different perforations therein can. Different colored bristle tufts are also possible within a bristle field, so that the brush manufacturer has the possibility of influencing the aesthetic effect of the brush by means of differently colored bristle tufts. He can even, for example, use a single bristle tuft with a color different from that of the other bristle tufts to mark the origin of his brush.

Nevertheless, the working speed and in particular the speed when filling the mold is not impaired and, since no mechanical means of transport are used to transfer the tufts of bristles into the mold, but instead a gas flow generated by negative pressure is also a problem-free transfer without congestion, upsetting and without transverse laying of individual bristles, for example at line bends or at the mouth entry into the recess of the mold, particularly when the negative pressure is applied to the mold, so that the negative pressure automatically directs the bristles into the mold, so that, as a result of this, and the possibility of all bristles at the same time of a bristle field into the mold via corresponding parallel vacuum lines, very high working speeds are possible.

To achieve the object, the device according to the invention of the type mentioned at the outset is characterized in that the mouths of the lines and the shape can be moved relative to one another and that the shape has a connection for applying a vacuum to the individual perforations.

Since the negative pressure is applied to the perforations of the mold, an uninterrupted air path under suction pressure is created into the perforations when connecting the mouths of the lines to the entrances of the perforations or a holding plate lying thereon, so that the bristles of the individual lines be safely transformed into the form. It advantageously does not matter if individual bristles of such a tuft are conveyed faster than the others during the transport of the tufts of bristles through the lines, because they each specifically enter a perforation and then receive the predetermined desired tuft shape there through the perforation shape . Since the mouths of the lines and the shape can be moved relative to one another, in particular the mouths can also be moved away from the shape, different bristle fields can be formed on the one hand and the access required for a melting device for subsequent melting of the bristles with one another and / or with a holding plate on the other hand create. Both the pipe mouths and the molds can be movable, so that the molds can be transported, for example in a manner to be described after they have been filled, to a melting station, while a new mold can already be found in the area of the pipe mouths.

The guide lines can have a distance from one another at their introducer, at which the bristles are sucked into the lines, or from one another be adjustable in which the tufts of bristles are provided before they are inserted into the mold, and the outlets or openings of the lines can be provided or adjustable in the position of use in the distance and the arrangement which corresponds to the hole arrangement of the mold and / or a holding plate. Since each bristle tuft has its own feed line to the corresponding perforation of the mold after it has been formed from a bristle stock, any geometrical arrangements of the bristle tufts with respect to one another can be formed in this way and any shape can be loaded in that the lines can be adjusted accordingly.

An expedient embodiment of the device consists in that at least one bristle magazine can be provided, in which the individual bristles are pressed against a displaceable and / or rotatable removal slide, and that the removal slide movable transversely to the removal is arranged at a distance from one another, the bristle supply facing open recesses for forming tufts of bristles and with its area having these recesses from the bristle magazine is displaceable or rotatable up to the individual openings of the lines. The respective bristle tufts can thus be formed in a very simple manner with the aid of such a removal slide, in whose open-ended recesses or recesses corresponding to the shape and size of the later bristle tufts, in the edge facing the bristle supply, the respective bristle tufts formed and transferred into the inlet area of the suction lines, after which When the corresponding counterholder emerges from the bristle magazine, close the open-edge recesses with the individual tufts of bristles. The individual openings of the suction lines can be or are oriented in a simple manner to those locations in which the tufts of bristles are located after removal with the aid of the slide. Simple and quick floats of this shooting bers are therefore sufficient to form the desired tufts of bristles from a supply of individual bristles and to position them so that they can be sucked into the mold in the manner already mentioned.

Hoses and / or pipes can be provided as lines, and in particular in the area of the introduction end and / or the mouth, the lines can be flexible for the adjustability of these areas. This facilitates the adjustment and mobility already mentioned, particularly in the mouth areas.
Embodiments of the supply lines and in particular their inlet openings and also the outlets are the subject of claims 11 and 12. The measures specified therein on the one hand facilitate the safe suction of all bristles of a tuft of bristles and on the other hand the assignment to a holding plate and its perforation pattern.

In order to further improve the introduction of the individual bristles into the perforation of the mold and in particular to achieve a dense filling with as many bristles as possible in such a perforation without the "last" arriving bristles being compressed on bristles already in the perforations, it is expedient to if the insertion speed of the bristles is increased in that the mouths of the lines have tapering or narrowing, preferably - in the manner of a Venturi nozzle - with subsequent widening. At such a constriction, the flow velocity of the air or gas flow caused by the negative pressure is increased depending on the degree of constriction, so that the bristles enter the perforation of the mold at a correspondingly high speed and with a correspondingly high momentum and, due to their ends which have already been sphered, become tangled can slide between bristles already in the perforation. If one or the other bristle no longer gets into the perforation, it can still be used the subsequent fusion process may be advantageous because it can then be fused with the protruding ends of the filled bristles that are to be fused.

A further embodiment of the device of very considerable importance can consist in that the perforations for receiving the tufts of bristles are blind holes, the bottoms or inner end faces of which have a negative shape or contour for shaping the ends of the respective tufts of bristles and, for example, as a hollow cone or - pointed, hollow hemisphere, bevel, level or a combination of these hollow shapes are formed. Thus, when a tuft of bristles is sucked in, the geometric shape of its later working end can also be produced, so that trimming the working ends of the tufts of bristles is no longer necessary after they have been combined into bristle fields and the working ends of the individual bristles can therefore be rounded off in advance.

A suction channel can emerge laterally, possibly at right angles, from all boreholes or perforations of the form above their bottom and these channels can lead to the suction connection and can be combined. As a result, the suction pressure is maintained right into the interior of the perforations in the mold, but without individual bristles being able to be drawn into the suction channels, as would be possible with a connection in the extension of the perforations in the mold.

An alternative solution with regard to the suction connections can be that the bottoms of the perforations in the mold in a porous insert, in particular in a ceramic insert, sinter insert, sieve, felt, textiles or the like. are provided, under which one with the vacuum connection connected or provided chamber or the like is provided. In this case, the negative pressure can be applied directly in the extension of the individual perforations, since the pores of such a porous insert are much smaller than the cross section of a single bristle.

In order to increase the certainty that each tuft of bristles has the desired geometric design after being filled into the mold and, above all, all the individual bristles are in the correct position in their longitudinal direction, the bottoms of the individual perforations can be stamped from the front side of the perforations be formed, which are arranged lower when filling than when the bristles melt and can be raised to a height corresponding to the exact tuft length, possibly via the suction channels of the perforations. Thus, the suction channels can be relatively deep, so that the bristles are sucked deep into the holes. If, however, due to a certain distance of the suction channels from the perforated floor, one or the other bristle does not initially reach this floor, this is nevertheless accomplished by the subsequent contact with the floors.

A further embodiment of the invention of its own worthy of protection can be in a device of the type mentioned in that the bottoms of the holes or holes of the shape are corrugated or profiled or roughened, with individual bristles between the ridges formed and others on these ridges fit so that the individual bristles of a bristle tuft at its free working end have slightly different lengths. It has been shown that a much better cleaning result can be achieved with toothbrushes in which not only the working end of the entire bristle tuft has a favorable geometric shape, but also in which the individual bristles of a bristle tuft are not all exactly on the surface of this geometric one Form, but each have approximately different lengths, so that individual bristles protrude slightly from neighboring bristles. This can be achieved by the aforementioned measure in a simple manner already when filling the bristles into the mold, if the mentioned corrugation or profiling or roughening is provided on the bottoms of the perforations in the mold, the desired arrangement of the free ends of the bristles being particularly light and is quickly reached when it is sucked into the mold and in particular afterwards the floor is moved to a final altitude.

Further refinements of the device according to the invention are the subject of claims 18 to 25.

Claim 18 specifies an embodiment with which several shapes can be loaded with bristles in the same advantageous manner at the same time, so that an even more efficient and faster brush production is possible.

The measure of claim 19 also contributes to this, but also includes a possibility of arranging different bristles and / or tufts of bristles in one and the same bristle field.

Claim 20 represents a simple and expedient embodiment of how a significantly larger number of bristle tufts and possibly also different bristles can be provided with a single slide, since different bristles can be kept ready in each of the bristle magazines mentioned therein.

Claim 21 relates to the possibility of further accelerating and rationalizing the production and thereby increasing the possibility of combining different bristles and shapes of bristle tufts.

Claim 23 is an embodiment of the entire device in such a way that the individual work steps such as filling the mold, the subsequent melting and connecting to a brush body can each be carried out approximately simultaneously.

An essential embodiment of the device contains claim 25, wherein the holding and insertion plate mentioned therein, which has already been mentioned above, is initially part of the device, but later forms part of the brush produced. Before each filling process of a mold, a new holding plate of this type is to be supplied, for which purpose a work station for placing such holding plates on the molds can be provided on the chain belt according to claim 24 in front of the station for filling the molds.

In addition to improving the insertion of the bristles and the better holding of the bristle tufts, especially after the fusing and possibly when the fused bristle ends are encapsulated, this holding plate has the additional advantage that it provides the brush manufacturer with further design options, e.g. to the extent that this plate and the actual brush body can be colored differently. If the perforations of the holding plate are slightly conical, so-called open bristle bundles result, in which the individual bristles are not pressed together by an anchor and are therefore separate from one another and can therefore achieve better cleaning results.

A major advantage of filling the mold with the aid of negative pressure is that any grinding dust still stuck to the bristle ends due to their rounding is practically completely removed, whereas in the conventional stamping process this grinding dust has scarcely been removed could be removed and each new toothbrush adheres to a considerable amount of such sleeping dust.

Since the bristles are sucked in and fixed to the holding plate by fusing, the conventional anchor fastening with the notches caused by the anchor fastening, which previously could lead to stress cracks in the bristle field, is eliminated. This also prevents individual bristles from migrating into such anchor grooves and then sticking out individually. All these advantages are achieved above all when combining one or more of the features and measures described above and in the claims in a very rational and fast production, in which all the bristles of a bristle field can be filled into the mold at the same time.
In those cases in which the bristles of individual bristle tufts are fused, but the bristle tufts are not connected to one another at the same time, these bristle tufts fused into bristle bundles can advantageously be used to produce brushes, the manufacture of the individual bristle bundles being advantageous with high Working speed and precision and at the same time good strength of the bristle bundle can take place.

If bristle fields are to be formed from coherent tufts of bristles with a retaining plate that connects and stabilizes them, it is advantageous, however, if the perforations in the retaining plate on the upper side facing away from the working ends of the bristles have depressions that accommodate the fused ends of the bristles of the individual tufts of bristles and which merge into one another at the mutually facing edges below the plate surface.

Furthermore, on the side of the holding and insertion plate on which the bristles to be fused protrude, ridges, projections, knobs or the like can be formed between the perforations project meltable material. The protruding bristles can then be fused with these if a corresponding melting ram is pressed sufficiently far down until it contacts these projections, knobs or the like and the bristle ends, melts and compresses them at the same time. The melt, which is formed by the bristle ends and these projections of the plate, can then flow into one another and, as it were, bring about welding, especially when the bristles and the plate are made of the same material. But even with different materials, there is an intimate connection between the bristles and the plate.
The holding plate can have a flange or a sealing lip which, after being inserted into a recess of the brush body which receives the holding plate, engages over the edge thereof. This prevents, for example, that cleaning agents gradually penetrate into the recess in the holding plate and deteriorate the appearance of the brush and also gradually loosen the connection. In claims 29 and 30, a device suitable for solving the problem of the type mentioned is characterized, which allows a wire-free supply of the bristles to the molds and their perforations, but again advantageously negative pressure for inserting the bristles into the perforations of the Forms is used. Such a device is advantageous if a separating slide for the tufts of bristles can be moved directly up to the inlet openings of the mold or the holding plate lying thereon.

Claims 32 and 33 relate to the rotatable removal slide, which allows the workflow and the bristle feed to be accelerated considerably because it can be moved and rotated continuously in the same direction, i.e. the time for an idle stroke, which increases with a displaceable removal slide for its return movement the bristle magazine or magazines is saved.

Exemplary embodiments of the invention are described in more detail below with their essential details using the drawing.

• Fig. 1 eine erfindungsgemäße Vorrichtung, mit welcher aus einem Borstenvorrat oder Borstenfüllkasten zu Borstenbüscheln zusammengefaßte Borsten mit­tels Leitungen einer an einen Unterdruck ange­schlossenen Form zugeführt werden,
• Fig. 2 eine Draufsicht der Borstenmagazine oder -füll­kästen mit einem zwischen ihnen hin- und herbe­wegbaren, an den seitlichen Rändern offene Aus­sparungen aufweisenden Schieber zum büschelweisen Entnehmen der Borsten aus den Borstenmagazinen und Zuführen zu den Eintritten der Saugleitungen,
• Fig. 3 eine Draufsicht eine möglichen Borstenfeldbil­des bzw. einer entsprechenden Form, wobei ange­deutet ist, daß die einzelnen Lochungen unterschied­liche Querschnitte und/oder Konturen haben können,
• Fig. 4 eine Vorrichtung gemäßg Fig. 1 im Zusammenwirken mit einem Kettenband, welches die zu beschickende Form zu verschiedenen Arbeitsstationen und dabei auch zu der Füllstation mit Hilfe der Saugleitun­gen gemäß Fig. 1, davor zu einer Station zum Auf­legen von einer Halteplatte und danach zu einer Schmelzstation zum Verschmelzen der Borstenenden und anschließend zu einer Station zum Verbinden mit einem Bürstenkörper überführt.
• Fig. 5 einen Teilschnitt durch eine Form, bei welcher die Halteplatte in eine nach oben offene Aus­nehmung eingepaßt ist und die überstehenden Borsten­enden verkugelt sind.
• Fig. 6 eine der Fig. 5 entsprechende Darstellung, bei welcher die Lochungen der Halteplatte sich zu der Oberseite erweitern und die Borsten inner­halb der Halteplatte verschmolzen sind,
• Fig. 7 eine Draufsicht der Anordnung nach Fig. 6 nach dem Verschmelzen der Enden der Borstenbüschel,
• Fig. 8 eine Halteplatte mit daran verschmolzenen Borsten, die einen umlaufenden Dichtungsflansch hat, vor dem Einsetzen in einen Bürstenkörper,
• Fig. 9 eine selbst als Bürstenkörper ausgebildete Halte­platte mit an ihr zusammengeschmolzenen Borsten vor dem Einfügen einer die Schmelzbereiche der Borstenbüschel verschließenden Abdeckplatte,
• Fig. 10 einen Teillängsschnitt durch eine fertiggestellte Bürste mit einer in eine Ausnehmung des Bürstenkör­pers eingefügten Halteplatte, wobei die Borsten eines Borstenbüschels an ihren Arbeitsenden ver­schiedene Längen haben,
• Fig.11 eine Stirnseite der Bürste und des Borstenfeldes gemäß Fig. 10,
• Fig. 12 eine vergrößerte Darstellung eines Borstenbüschels, dessen einzelne Borsten an den Arbeitsenden zwei verschiedene Längen haben,
• Fig. 13 die Draufsicht eines Borstenbüschels gemäß Fig.12, dessen Einzelborsten alle über die gesamte Länge bis zu der Halteplatte voneinander getrennt sind.
• Fig. 14 eine der Fig. 1 entsprechende Darstellung einer ab­gewandelten Vorrichtung, mit welcher aus einem Bor­stenvorrat zu Borstenbüscheln zusammengefasste Bor­sten mittels Leitungen und an diese anlegbarem Unter­ druck einer Form beschleunigt zugeführt werden,
• Fig. 15 eine abgewandelte Vorrichtung, mit welcher aus einem Borstenvorrat zu Borstenbüscheln zusammenge­fasste Borsten mittels einer im wesentlichen aus einem Schieber und einer gelochten Zuführplatte be­stehenden Zuführeinrichtung der Form zugeführt und über die Lochungen der Form gebracht werden, sowie
• Fig. 16 eine der Fig. 2 entsprechende Darstellung, wobei statt eines hin- und herbewegbaren Schiebers ein als Dreh­scheibe ausgebildeter drehbarer Schieber vorgesehen ist.

It shows in a partially schematic representation:

• 1 shows a device according to the invention, with which bristles combined from a bristle supply or bristle filling box to form bristle tufts are fed by means of lines to a mold connected to a vacuum,
• 2 shows a top view of the bristle magazines or filling boxes with a slide which can be moved back and forth between them and has cutouts which are open at the lateral edges for tuft-wise removal of the bristles from the bristle magazines and supplying them to the inlets of the suction lines,
• 3 shows a plan view of a possible bristle field image or a corresponding shape, it being indicated that the individual perforations can have different cross sections and / or contours,
• Fig. 4 shows a device according to Fig. 1 in cooperation with a chain belt, which the form to be loaded to different workstations and thereby also to the filling station with the aid of the suction lines according to Fig. 1, before to a station for placing a holding plate and then to transferred to a melting station for fusing the bristle ends and then to a station for connecting to a brush body.
• Fig. 5 is a partial section through a shape in which the holding plate is fitted in an upwardly open recess and the protruding bristle ends are spherical.
• 6 shows a representation corresponding to FIG. 5, in which the perforations of the holding plate expand towards the top and the bristles are fused within the holding plate,
• 7 shows a top view of the arrangement according to FIG. 6 after the ends of the bristle tufts have melted,
• 8 shows a holding plate with bristles fused to it, which has a circumferential sealing flange, before being inserted into a brush body,
• 9 shows a holding plate, which is itself designed as a brush body, with bristles fused to it before inserting a cover plate which closes the melting areas of the bristle tufts,
• 10 shows a partial longitudinal section through a finished brush with a holding plate inserted into a recess in the brush body, the bristles of a tuft of bristles having different lengths at their working ends,
• 11 an end face of the brush and the bristle field according to FIG. 10,
• 12 is an enlarged view of a tuft of bristles, the individual bristles of which have two different lengths at the working ends,
• 13 shows the top view of a tuft of bristles according to FIG. 12, the individual bristles of which are all separated from one another over the entire length up to the holding plate.
• FIG. 14 shows a representation corresponding to FIG. 1 of a modified device, with which bristles are combined from a bristle supply to form bristle tufts by means of lines and the bottom which can be attached to them pressure of a mold is accelerated,
• 15 shows a modified device with which bristles combined from a bristle stock into bristle tufts are fed to the mold by means of a feed device consisting essentially of a slide and a perforated feed plate, and are brought over the perforations of the mold, and
• FIG. 16 shows a representation corresponding to FIG. 2, a rotatable slide designed as a turntable being provided instead of a slide that can be moved back and forth.

A device, designated as a whole by 1 and recognizable above all in FIGS. 1, 4, 14 and 15, is used to produce bristle fields 2 (see, for example, FIGS. 8, 9 and 10) or bristles 3 (see again FIG. 9) and 10). The ends of individual plastic bristles 4 of a tuft of bristles 5 according to FIG. 5 or FIG. 6 are fused to one another and / or to those of a neighboring tuft. According to FIGS. 1 and 4, the device 1 includes a shape 7 provided with perforations 6, which is a semi-shape, ie the perforations 6 are blind holes. A tuft of bristles 5 fits into these perforations 6, but the ends 8 of the bristles 4 to be fused, as shown in FIG. 1, protrude.
According to Fig.1, 4 u. 14, the mold 7 belonging to the device 1 has a connection or connecting piece 9 for applying a negative pressure to the individual perforations 6 and supply lines 10, hereinafter also simply referred to as lines 10, are provided, with a line 10 for each hole 6 to be filled leads. The cross sections of these lines 10 correspond at least to those of the bristle tufts 5 to be transported and guided in them, so that each line 10 can transport a tuft of bristles 5. The orifices 11 of the lines 10 and the form 7 can be moved relative to one another, as is indicated in FIGS. 1 and 14 by the double arrow Pf 1 for the orifices 11 and in FIG. 4 by the arrow Pf 2 for the form 7.

At their introducer 12, the guide lines 10 are at a distance from one another or, if necessary, can be set to a distance at which the bristle tufts 5 are provided before they are inserted into the mold 7 according to FIGS. 1 and 2. In Fig. 1 it is shown that the insertion ends 12 are formed or held together by an insertion plate 13. The outlets or outlets 11 of the lines 10 are provided or adjustable according to FIG. 1 in the position of use in the spacing and the arrangement which corresponds to the hole arrangement of the shape 7 which can be recognized by way of example in FIG . Thus, after applying a negative pressure to the connection 9 at the inlets 12, the bristles can be sucked in, transported through the lines 10 and drawn into the perforations 6 of the mold 7, in which case, of course, the mouths 11 of the line 10 onto the mold 7 or Holding plate 14 are lowered or the shape 7 is raised.

1, 2, 4, 14 and 15, the device also includes at least one bristle magazine 15, two exemplary bristle magazines 15 of this type being provided with mutually facing removal points 16, which are under pressure from opposite sides in accordance with the arrows Pf 3, so that the bristles 4 in them are repeatedly brought to the removal points 16 and pressed. As a result, the bristles 4 are pressed against a removal slide 17, which in each case limits the supply of bristles at these removal points 16. This across the removal Place 16 movable removal slide 17 has, as shown in FIG. 2, spaced from each other, the bristle supply facing and open to the edges or recesses 18 to form the bristle tufts 5. This removal slide 17 is with its recesses 18 from the bristle magazine 15 to slidable under the insertion openings 12 of the lines 10, the drawings showing this shift position.

Hoses and / or pipes can be provided as lines 10, the lines 10 being flexible in particular in the area of the insertion end 12 and / or the mouth 11 for carrying out the adjustment movement of these areas.

The insertion ends 12 of the lines 10 are connected to an insertion head, in the exemplary embodiment of the insertion plate 13 already mentioned, or fastened to such an insertion head. The insertion openings 19 in the exemplary embodiment are funnel-shaped with a tapering from a larger cross section to the line cross section, so that all individual bristles 4 of a respective bristle tuft 5 can be sucked in and transported in tufts with a correspondingly high degree of certainty.

In the exemplary embodiment, the outlets or orifices 11 of the lines 10 are also connected to one another and are thereby fixed to an orifice plate 20. If the assignment of the individual orifices 11 to change a bristle pattern is to be changed, the orifice plate 20 can possibly be exchanged.

In Figs. 1,4,5,6,14 u.15 you can clearly see that the perforations 6 for receiving the tufts of bristles 5 in the form 7 are blind holes, the bottoms 21 or inner end faces of a negative shape or contour for forming the have free ends of the respective bristle tufts 5 and, for example, as Hollow cone or tip, hollow hemisphere (Fig. 6), bevel, plane (middle bristle tufts of Fig. 5) or a combination of these hollow shapes can be formed. When sucking in the bristle tufts 5, the free working ends of these bristle tufts are simultaneously brought into a desired shape without the need for subsequent trimming or shaping of these working ends of the bristle tufts 5, so that the individual bristles can be rounded off beforehand.

From all bores or perforations 6 of the shape 7, suction ducts can pass laterally, possibly at right angles, above their bottoms 21, and these ducts can lead to the suction connection 9 or be combined.

In the exemplary embodiment according to FIGS. 14, 15 and 15, however, another solution is shown in which the bottoms 21 of the perforations 6 in the mold 7 are provided in a porous insert 22, for example a sintered or ceramic insert, one of which is provided with the vacuum connection 9 provided chamber 23 is provided. In this way, the suction flow can be directed to the innermost ends of the perforations 6 in the longitudinal direction of the bristles 4 to be inserted and sucked in.

10 to 12 show that the individual bristles 4 of a bristle tuft 5 can expediently have, for example, two different lengths in order to achieve a better cleaning effect. This can be achieved in a manner not shown in the drawings in that the bottoms 21 of the perforations 6 of the shape 7 are corrugated or profiled or roughened, individual bristles 4 each fitting between the elevations formed and others on these elevations, so that the individual bristles 4 of a tuft of bristles 5 at its free working end receive the slightly different lengths, which can be seen clearly in FIG. 12.

Also not shown in the drawing is that the bottoms 21 of the individual perforations 6 can be formed from the end face of stamps which can be displaced in the perforations 6 and which are arranged deeper when filling than when the bristles 4 are fused and in one of the exact tuft lengths appropriate height, if necessary, can be raised via the suction channels leading from the perforations 6. As a result, the desired final length of the individual bristles and tufts of bristles is achieved with great certainty even if, for example, when a tuft of bristles is sucked in, one or the other bristle remains somewhat in the perforation 6 with respect to the others, which above all cannot be completely ruled out if the suction channels leave the perforations laterally.

It should be mentioned that more feed lines 10 for bristle tufts 5 can be provided on the device 1 than a single mold 7 has perforations 6, so that several molds 7 forming a bristle field can be loaded at the same time, thereby increasing the production speed in the production of bristle fields 2 and / or brushes 3 can be increased significantly.

In Fig. 2 it is indicated that the slider 17 for separating the bristle tufts 5 when removing the bristles 4 from the bristle magazine 15 can have different recesses or recesses 18 for forming different bristle tufts 5 and in particular for forming bristle tufts 5 of different thickness and / or cross-sectional shape . In Fig. 3 it can be seen that bristle fields and bristle patterns are conceivable, in which on the one hand round, on the other hand square and also elongated cross sections of bristle tufts 5 are provided, the cross-sectional sizes also being able to be different. This can be taken into account by corresponding cross-sectional areas on the recesses 18. The shaping of the cross-sectional contour of the individual Tufts of bristles can then take place in the form 7 and / or the holding plate 14.

Since the device 1 in the exemplary embodiment 2 has bristle magazines 15 lying opposite one another and the displaceable slide 17 located transversely to them and the bristles 4 located therein has recesses 18 on both longitudinal sides for separating bristle tufts 5, the bristle fields 2 and / or the brushes 3 can also be combined with bristles of different thickness, quality, flexibility and / or color. The assignment ratio of such different bristle tufts to one another can also be preselected by different numbers of recesses 18 on the removal slide 17.

Of course, several bristle magazines 15 or pairs of such magazines 15 and associated removal slides 17 can also be provided for the inlet heads 13 of the suction guides 10 in order to allow an even higher production rate and possibly the loading of even more molds 7 at the same time.

It should be mentioned at this point that the feed lines 10 for the bristle tufts 5 from the slide 17 to the molds 7 are about 1 mm - 10 mm in diameter, e.g. can have approximately 2 mm or 5 mm inner diameter, depending on how thick the individual bristle tufts 5 are. The length of the feed lines 10 can be approximately 1 m - 10 m, for example approximately 5 m, as tests have shown without individual bristles being sucked in remaining in the line 10. An optimal assignment of the bristle magazines 15 to the molds 7 can thus be selected for the production process.

A further expedient embodiment of the device 1 can be seen in FIG. 4. Accordingly, the molds 7 are on a conveyor or chain belt 24 or the like arranges over the upper run in the feed direction according to the arrow Pf 2 the mouth 11 of the feed lines 10, next to it a heating or melting station 25 for fusing the bristle ends and possibly again in the feed direction next to a feed device for brush bodies 26 and / or an ultrasonic welding system 27 or Gluing device are arranged. The ejection station 28 for the finished brushes 3 can be seen on the lower run of the belt 24.

As already mentioned, when the mold 7 is filled between this and the mouth 11 of the lines 10 according to FIG. 1, a holding and insertion plate 14 for the bristles 4 is arranged, which has through holes 6a in the arrangement in which the bristle tufts 5 form one Bristle field are summarized and from which the bristles 4 inserted into the mold protrude with their ends 8 when fused. This holding plate 14, which can be placed on the mold 7, can consist of the material from which the brush body 26 is also made, so that the welding or gluing to the brush body 26, which is still pending in FIG. 8 and has already been carried out in FIG. 10, is easier and more permanent.

4 that a work station 29 is arranged in front of the station for filling the bristles 4 into the mold 7, in which the holding plates 14 are fed and placed on the mold 7.

In Fig. 8 it is also indicated that this holding plate 14 may have a suitably circumferential sealing flange 30 which covers the joint between the plate 14 and the depression 31 of the brush body 26 after connection and so the life of the brush, especially when it is used further extended as a toothbrush because penetration of cleaning agents u. The like is prevented even more effectively in this area.

1, 6, 14 and 15 it can be seen that the perforations 6a in the holding plate 14 have depressions 6b on the upper side facing away from the working ends of the bristles 4, that is to say they widen towards this upper side. 6, the fused ends 8 of the bristles 4 of the individual tufts of bristles are located in these extensions or depressions 6b of the perforations 6a, wherein it is also indicated in FIG. 6 that these depressions 6b below the plate surface with the mutually facing edges can merge, so that the fused bristle ends according to FIG. 7 can also be partially connected to those of the neighboring tufts and fused. In FIGS. 6 and 10 it can be seen that the webs of the holding plate 14 remaining between adjacent perforations 6a have a lower height than the total plate thickness. At these points of the reduced web height, not only the bristles 4 of a tuft of bristles 5 can be fused with one another, but also the bristle tufts 5 that are adjacent to one another, as is indicated in FIGS. 6 and 10. Thus, with this solution, the individual tufts of bristles are already well secured against pivoting, so that only the individual bristles 4 can be bent out due to their elasticity.

If at the same time after melting the ends 8 of the bristles 4, the still soft or pasty melt is placed under the negative pressure, which also serves to convey the bristles 4 into the mold 7, this melt can partially be located in the holding plate 14 between the bristles sucked and thus the strength of the anchor can be further improved.

14 and 15 it is also indicated that on the side of the holding plate 14 on which the to be merged Bristles 4 protrude with their ends 8, protrusions, projections, knobs 33 or the like made of fusible material between the perforations 6a, which can also be melted and fused together with the fusing of the bristles, so that the connection to the holding plate 14 becomes even better and more intimate. This applies both when the holding plate 14 is made of the same material as the bristles 4, as well as when a different material is provided, which can nevertheless mix wholly or partially with the bristle material and, overall, brings about a stable anchoring of the bristles 4.

If such additional knobs 33 are also fused, the gaps that can be seen in FIG. 7 between the fused regions can also be filled with melted and solidified plastic compound.

9 shows that the holding plate 14 can also be the brush body itself, into which the bristle tufts 5 are inserted and on which they are fused, it then being expedient to close off the side provided with this fusing with a cover plate 32, in particular then if only the bristles 4 of the bristle tufts 5 are interlocked with each other and not with the neighboring tufts, as shown in FIG. 5.

With the device 1 described above, brushes 3 or bristle fields 2 can be produced, bristle bundles or tufts 5 being filled into the holes 6 of the formula 7 and then at the ends 8 facing away from the later free working ends of the plastic bristles 4 in the in FIG. 5 or 6 can be fused in a recognizable manner, wherein FIG. 5 shows a fusion only on the individual tufts 5, FIGS. 6 and 7 but also a fusion with the neighboring tufts. The procedure is such that the bristle tufts 5 are first formed from individual bristles 4 by separating a supply of bristles into tufts 5, that the bristles 4 are then sucked in tufts, fed to the mold 7 and sucked into the perforations 6 of the mold 7 and then fused . The feeding and filling into the mold can take place in one work station, the subsequent fusion in a neighboring work station, so that a filling process can already be carried out for a next mold 7 while the bristles are fusing.

According to the exemplary embodiment, the tufts of bristles 5 are sucked through the holding plate 14 placed on the mold 7 and provided with matching perforations 6a, the ends 8 of the bristles 4 to be fused protruding beyond the plate 14 or at least into one towards the top of the plate 14 protruding perforated area 6b (Fig. 6) protrude, and that then the Bristles 4 are melted together and optionally with those of the neighboring tufts of bristles and also with knobs 33 of the holding plate 14. After the bristles 4 have melted, the holding plate 14 can be connected to a brush body 26, in particular welded or glued, which in turn can take place in a further work station after a feed movement, while at the previous work stations the previous method steps in parallel and simultaneously in a subsequent form can be carried out. Finally, after the connection to the holding plate 14, the bristle field is ejected from the mold 7 by fusing the bristles or with the brush body 26.

Because this process and its individual process steps at the same time at different workstations and possibly Can be carried out simultaneously on several forms and no longer each individual bristle bundle 5 has to be stuffed into the perforation of a brush body, a significantly increased production speed can be achieved compared to conventional brush manufacturing processes. At the same time, a favorable anchoring of the bristles is achieved by the fusion and also an expedient connection to a brush body, it being possible, if necessary, not only to combine bristles 4 of different halves and shapes, but also of different colors and with different arrangements at their working ends.

To produce brushes or bristle fields, tufts of bristles 5 are formed from individual bristles 4 and then filled in tufts of holes 6 in half-molds 7 and then fused to the holding ends 8. This takes place expediently in that the bristles 4 are removed from a bristle magazine 15 with a corresponding bristle supply and are thereby separated into tufts of bristles 15, then these bristles 4 are drawn in tufts by individual lines 10 assigned to them and fed to the mold 7 and are sucked into the perforations 6 of the molds 7. At the same time, they can be sucked through the holding plate 14 placed on the mold 7 or inserted into a recess provided there, with which they are connected by the subsequent fusion process, so that the connection of the bristles to the brush body 26 is considerably simplified, since such Holding plate 14 can be welded or glued well to a brush body 26 or can even form this brush body 26 itself.

It should be mentioned at this point that when the individual bristle tufts are melted together, individual bristle tufts are formed in the manner shown in FIG. 5, which instead of being connected with the aid of the holding plate 14 to a bristle field, are also simply used as part of a brush during its manufacture can find. Thus, the above-described procedure and the above-described and below described modified device can also be used for the production of bristle bundles for brushes and thereby enable a large number of pieces in a short time.

The device 1 shown in FIG. 14 corresponds in essential parts to the device according to FIG. 1 and therefore has the same reference numbers for most parts such as the mold 7 and the lines 10. The separation of the bristle tufts 5 also takes place in the manner already described. In addition, in this case, too, the individual tufts of bristles 5 are fed to the mold or molds 7 with the aid of an air flow which arises when a vacuum is applied to the mold 7. It is provided in this exemplary embodiment that the orifices 11 of the lines 10 have tapering or narrowing 34 with subsequent expansion 35, that is to say in the orifices 11 a type of Venturi nozzle is arranged, within which the air flow is accelerated due to this narrowing of the cross-section. Experiments have shown that the bristle tufts 5 may be drawn out somewhat in length during their transport through the lines 10, because initially medium bristles can be conveyed somewhat faster than the bristles lying against the line walls. This can be exploited by an increased insertion speed with the help of the mentioned constriction 34 into the perforations 6a of the holding plate 14 and 6 of the mold 7, this increased insertion speed also increasing the momentum or the kinetic energy of the individual bristles 4, so that even the last bristles can still be inserted between the bristles already in the perforations 7 and, as it were, "shot in". Such an expedient configuration of the bristle supply is possible precisely because of the conveyance with the aid of negative pressure, whereas conveyance by means of compressed air at the inlet into the nozzles could lead to considerable traffic jams caused by bristles which might be transverse.

Even if one or the other of the bristles introduced as the last one no longer gets completely into the respective perforation 6 of the mold 7, but remains with a considerable part of its length or even completely above the top of the holding plate 14, it can also be fused together in the subsequent fusion process and thus contribute to increasing the strength of the entire bristle field produced, consisting of tufts of bristles 5 and the holding plate 14.
In the device 1 which can be seen in FIG. 15, the shape 7 is again provided with its perforations 6 and the holding plate 14 which can be placed on with upstanding knobs 33, but the bristles or the bristle tufts 5 are supplied in a different way. For this purpose, a supply device, generally designated 37, for grasping and transporting the bristle tufts 5 to the perforations 6 of the mold 7 is provided, which has a slide holding the bristle tufts 5 individually - in this case, this also applies to the preceding devices described removal slide 17 - and has a feed plate 38 provided with passages. The bristle tufts 5 can be displaced transversely to their orientation direction on this feed plate 38 by means of the slide 17. The feed plate 38 has passages 39 which are arranged in alignment with the perforations 6 of the mold 7 or which can be brought into alignment with the bristle tufts prior to separation and feeding.

In this embodiment, the bristle tufts 5 can not only be formed and isolated in an advantageous manner with the aid of the removal slide 17, but also can be supplied practically directly to the mold 7.

15 that the mold 7 also has a vacuum connection 9 below a porous insert 22 containing the ends of the perforations 7, so that an air flow can also be generated in this case by applying a vacuum the introduction of the bristles 4 into the perforations 6 of the mold 7 brings about or at least supports them, since in the arrangement shown - as in the exemplary embodiments described above - gravity is additionally effective.

While the devices according to FIGS. 1, 4 and 14 can bridge a large distance between the bristle supply and the mold, the device according to FIG. 15 allows a construction with a small space requirement.

It should also be mentioned that the bristle tufts 5 can contain a different number of individual bristles 4 and that in extreme cases only a single bristle 4 can be provided and can be conveyed into the mold and through a holding plate 14 in the manner described above. It is precisely here that the constriction 34 according to FIG. 14 be expedient in order to accelerate such a few or a single bristle 14, but also - as in the exemplary embodiment according to FIG. 14 itself - to insert it centrally into the respective perforation 6.

The introduction of only a single bristle 4 into a perforation 6 of the shape 7 is particularly advantageous when relatively thick bristles, optionally with spherically thickened working ends on a brush are desired, in which e.g. a massage effect can be in the foreground. Such an individual bristle can also be thickened at its end by fusing and connected to the holding plate 14.

Here, too, a fusion with the holding plate 14, be it that it is made of the same material, or that it is made of a different material from the bristles 4, is expedient with the aid of knobs 33 on the holding plate 14, in order to, as in the exemplary embodiments described above, to establish a permanent connection between the bristles and the holding plate 14.
FIG. 16 shows an embodiment modified with respect to FIG. 2 with respect to the removal slide 17, but the same parts have the same reference numbers even when the outer design is changed. In this embodiment, the removal slide 17 is rotatable, ie it can be rotated in a constant direction of rotation Pf4 when the bristles 4 are removed from the bristle magazine (s) 15 and when they are conveyed to the insertion openings 12 or the passages 39 and from there to the respective bristle magazine and therefore only rotate in one direction. Thus, the idle stroke required in the reciprocable slide 17 according to FIG. 2, by means of which the slide 17 with its recesses 18 must be moved back to the bristle magazine 15, is eliminated. Because of this continuous direction of movement and working method as well as the avoidance of loss of time due to such an idle stroke, the loading with bristles and thus the entire work process can be accelerated considerably.

After a fraction of a turn between the respective removal positions of, for example 90 ^o a holding position 4 may be provided for the transfer of the bristles. It can be seen in Fig. 16 that the turntable serving as removal slide 17 is acted upon by two opposing bristle magazines 15, but has recesses 18 for the bristles 4 which are open at four points, so that on the one hand such recesses 18 in the area of the bristle magazines 15 and on the other hand are arranged in the area of the transfer to the molds. As in the exemplary embodiment according to FIG. 2, the cutouts 18 which are open at the edge are kept closed over part of the rotational path by lateral guides 18a in order to fix the bristles.

The rotatable removal slide 17 is a turntable with a circular circumference and a central axis of rotation and the recesses 18 are arranged open on the periphery of this turntable. As mentioned, two, but possibly also e.g. Four or with a correspondingly large circumference of the turntable, even more bristle magazines 15 can be arranged at a distance from one another along the circumference of the turntable, only enough space between the bristle magazines 15 for the holding position and the transfer point to the insertion openings 12 or passages 39, each of which Form 7, must be present. Here, too, the open-edged recesses 18 can have different contours and cross sections in order to form different tufts of bristles.

Claims (33)

1. A method for producing bristle fields for brushes or of bristle bundles for brushes, bristle tufts being filled into perforations (6) of shapes (7), the bristle tufts (5) first being formed from individual bristles (4) by forming a bristle stock into bristle tufts (5) is separated, after which the bristles (4) are fed in tufts to the mold (7) with the aid of an air flow and introduced into the perforations (6) in the mold (7), characterized in that the air flow for conveying the tufts (5 ) is generated with negative pressure and that the ends (8) of the bristles facing away from the later free working ends are then fused after being introduced into the perforations (6) of the mold (7). 2. The method according to claim 1, characterized in that the bristles (4) are introduced into the mold (7) in approximately vertical orientation. 3. The method according to claim 1 or 2, characterized in that the bristle tufts (5) through a placed on the mold (7), with matching holes (6a) equipped with the mold holding plate (14) are sucked through, after which the ends to be fused (8) of the bristles (4) protrude beyond the plate (14) or at least protrude into a perforation area which widens towards the top of the plate (14), and that these bristles (4) then together and / or with the plate or with projections protruding thereon in the same direction as the protruding ends (8) of the bristles (4) and optionally with the ends (8) of the neighboring bristle tufts. 4. The method according to any one of claims 1 to 3, characterized in that after the melting of the ends (8) of the bristles (4) the still soft or pasty melt under pressure, in particular negative pressure and thereby at least partially in the holding plate (14th ) located spaces between the bristles and / or between them and the holding plate (14) is pressed or sucked. 5. The method according to any one of claims 1 to 4, characterized in that the holding plate is connected after the fusing of the bristles (4) with a brush body (26), in particular welded, high frequency welded, glued, permanently locked or screwed. 6. Device (1) for producing bristle fields (2) for brushes (3) or bristle bundles for brushes, in which the ends (8) of individual plastic bristles (4) of a bristle tuft (5) with one another and / or with them of a neighboring tuft are fused, with a shape (7) provided with perforations (6) into which perforations (6) each a tuft of bristles (5) fits, supply lines (10) being provided for the shape (7) and for each perforation to be filled (6) a line (10) leads to which lines (10) means for generating an air flow to the mold (7) can be connected, characterized in that the mouths (11) of the lines (10) and the mold (7 ) are movable relative to each other and that the mold (7) has a connection for applying a vacuum to the individual perforations (6). 7. The device according to claim 6, characterized in that the guide lines (10) at their introducer (12) have the distance from each other or adjustable to the distance are in which the bristle tufts (5) are provided before their insertion into the mold (7), and that the exits or openings (11) of the lines (10) are provided or adjustable in the position of use in the distance and the arrangement which the Hole arrangement of the form (7) and / or a holding plate corresponds. 8. The device in particular according to claim 6 or 7, characterized in that at least one bristle magazine (15) is provided, in which the bristles (4) are pressed against a displaceable and / or rotatable removal slide (17), and that the transverse to the Removal (16) has movable removal slides (17) at a distance from each other, facing the bristle supply, open recesses (18) for forming bristle tufts (5) and with its area having these recesses (18) from the bristle magazine (15) to below Insertion openings (12) of the lines (10) can be moved or rotated. 9. Device according to one of claims 6 to 8, characterized in that hoses and / or pipes are provided as lines (10) and in particular in the area of the insertion end (12) and / or the mouth (11) for the adjustability of these areas the lines (10) are flexible. 10. Device according to one of claims 6 to 9, characterized in that the introducers (12) of the lines (10) are connected to an insertion head or are attached to an insertion head and the inlet openings (19) in the lines (10) are funnel-shaped with themselves are formed from a larger cross-section tapering to the line cross-section. 11. Device according to one of claims 6 to 10, characterized in that the mouths (11) of the lines (10) connected to each other, preferably fixed to an optionally interchangeable mouth plate (20). 12. Device according to one of claims 6 to 11, characterized in that the mouths (11) of the lines (10) have tapering or narrowing (34) - preferably in the manner of a venturi nozzle - with subsequent expansion (33). 13. Device according to one of claims 6 to 12, characterized in that the perforations (6) for receiving the bristle tufts (5) in the form (7) are blind holes, the bottoms (21) or inner end faces of a negative shape or contour Have the ends of the respective bristle tufts (5) shaped and are designed, for example, as a hollow cone or tip, hollow hemisphere, bevel, plane or a combination of these hollow shapes. 14. Device according to one of claims 6 to 13, characterized in that of all holes or perforations (6) of the form (7) above each of their bottoms (21) a suction channel laterally, possibly at right angles, and these channels to the suction connection lead and are summarized. 15. Device according to one of claims 6 to 14, characterized in that the bottoms (21) of the perforations (6) in the mold (7) in a porous insert (22), in particular in a ceramic insert, sintered insert, sieve, felt, textiles or the like. are provided, under which a chamber (23) provided with the vacuum connection (9) or the like. is provided. 16.The device according to one of claims 6 to 15, characterized in that the bottoms (21) of the individual perforations (6) are formed from the end face by stamps which are displaceable in the perforations (6) and which are deeper when filling than when the bristles melt (4) are arranged and can be raised to a height corresponding to the exact tuft length, possibly via the suction channels of the perforations. 17. Device in particular according to one of the preceding Claims, characterized in that the bottoms (21) of the perforations (6) of the mold (7) are corrugated or profiled or roughened, individual bristles (4) each fitting between the elevations formed and others on the elevations so that the Individual bristles (4) of a tuft of bristles (5) have slightly different lengths at the free working end. 18. Device according to one of claims 6 to 17, characterized in that more feed lines (10) for bristle tufts (5) are provided than a form (7) has perforations (6), so that at the same time several forms forming a bristle field (7 ) can be loaded. 19. Device according to one of claims 6 to 18, characterized in that the slide (17) for separating the tufts of bristles has different recesses (18) for forming different tufts of bristles (5) and in particular for forming tufts of bristles (5) of different thickness and / or Has cross-sectional shape. 20. Device according to one of claims 6 to 19, characterized in that two opposing bristle magazines (15) are provided and the transverse to them and the bristles (4) located therein slide (17) on its two longitudinal sides recesses (18) for separating tufts of bristles (5). 21. Device according to one of claims 6 to 20, characterized in that a plurality of bristle magazines (15) and removal slides (17) to the inlet heads (15) of the suction guides (10) are provided. 22. Device according to one of claims 6 to 21, characterized in that the feed lines (10) for the Bristle tufts (5) from the slide (17) to the molds (7) have approximately 0.1 mm to 20 mm inside diameter. 23. Device according to one of claims 6 to 22, characterized in that the molds (7) on a conveyor or chain belt (24) or the like. Feed means are arranged, over the upper run in the feed direction of this belt one behind the other the mouth (11) the feed lines (10), a heating or melting station (25) for fusing the bristle ends and optionally a feed device for brush bodies (26) and / or an ultrasonic welding system (27) or adhesive device are arranged next to the feed direction. 24. Device according to one of claims 6 to 23, characterized in that on the lower run of the belt (24) or the like. The ejection station (28) for the finished brushes (3) is provided. 25. Device according to one of claims 6 to 24, characterized in that when filling the mold (7) between this and the mouth (11) of the lines (10) a holding and insertion plate (14) for the bristles (4) are arranged which has through-holes (6a) in the arrangement in which the bristle tufts (5) are combined to form a bristle field and from which the bristles inserted into the mold protrude when fused. 26. Device according to one of claims 6 to 25, characterized in that the perforations (6a) in the holding plate (14) on the upper side facing away from the working ends (6a) of the bristles (4) have depressions (6b) which accommodate the fused ends (8) of the bristles (4) of the individual bristle tufts (3) and, if necessary, on each other facing rounders merge into each other below the surface of the plate. 27. The device according to one of claims 6 to 26, characterized in that the holding plate (14) has a flange (30) or a sealing lip which, after insertion into a recess (31) of the brush body (26) which receives the holding plate ) overlaps the edge. 28. Device according to one of claims 6 to 27, characterized in that the holding plate (14) which can be placed on the mold (7) consists of the material from which the brush body (26) is made, or that the holding plate (14) of the brush body is. 29. Device for producing bristle fields (2) for brushes (3) or bristle tufts for brushes, in which the ends (8) of individual plastic bristles (4) of a tuft (5) are fused together and / or with those of a neighboring tuft , With a form (7) provided with perforations (6), into which perforations (6) a bristle tuft (5) fits and from which the ends (8) of the bristles (4) to be fused protrude, in particular for carrying out the method according to one of claims 1 to 5, characterized in that a feed device (37) for gripping and transporting bristle tufts (5) or individual bristles (4) is provided in each case towards the perforations (6) of the mold (7), which form the bristle tufts (5) individually holding slide and a feed plate (38) provided with passages (39), on which the tufts of bristles (5) can be displaced transversely to the orientation of the bristles (4) by means of the slide (17) such that the passages (39) of the feed plate (38) are aligned with the perforations (6) of the mold (7) or can be brought into alignment with them and that the mold (7) has a vacuum connection (9). 30. The device according to claim 29, characterized in that the vacuum connection (9) on the mold (7) below a porous, the ends of the perforations (7) containing insert (22) is arranged. 31. The device according to one of claims 6 to 30, characterized in that on the side of the holding and insertion plate (14) on which the bristles to be fused (4) protrude, between the perforations (6a) ridges, projections, knobs ( 33) or the like protrude from fusible material. 32. Device according to one of claims 6 to 31, characterized in that the rotatable removal slide (17) when removing the bristles (4) from the bristle magazine (15) and when conveying to the insertion openings (12) or the passages (39) and from there again to the respective bristle magazine (15) in a constant direction of rotation or rotates and after a partial rotation between the removal positions of, for example 90 ^{o, has} a holding position for the transfer of the bristles (4). 33.Device according to one of claims 6 to 32, characterized in that the rotatable removal slide (17) is a turntable with a preferably circular circumference and a central axis of rotation and the recesses (18) are arranged open on the periphery of this turntable and that two or four if necessary or - with a correspondingly large one Circumference of the turntable - even more bristle magazines (15) are arranged at a distance from one another along the circumference of the turntable and the holding position and the transfer point to the insertion openings (12) or passages (39) are arranged between these bristle magazines.

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