EP0472863A1 - Apparatus for making bristle tufts and its use in the manufacture of brushes - Google Patents

Abstract

An apparatus for making bristle tufts has a box-type magazine (1) for bristles (2), which have been cut to length, and at least one tubular tuft gripper (6) which can be inserted in the magazine (1) and thereby separates a bristle tuft from the bristle supply and which widens on the inside from the opening (22) over a short axial length (s) in a constant curve and, adjoining said curve, has an axially parallel wall (23) on the greatest part of its axial length with formation of a larger inside cross-section compared to the opening. The magazine (1) has an oscillating bottom (5), which "fluidises" the bristles, and an oscillating wall section (4) which jolts the bristles into a flush position. <IMAGE>

Description

The invention relates to a device for producing bristle bundles with a shaft-like magazine, which holds a larger supply of bristles cut to length and layered approximately in parallel, and with at least one tube-like bundle gripper, which has an inner cross section at the mouth opening corresponding to the desired cross section of the bristle bundle , which can be moved into the magazine and thereby separates at least one bristle bundle from the bristle supply. Furthermore, the invention is directed to a method for producing bristle goods by means of the aforementioned device.

In the present context, bristle articles are not only understood to mean brushes, brooms, brushes of conventional design, i.e. with a handle, handle or the like and a bristle holder covered with bristles, but also bristle elements of any kind, in which, for example, the bristles made of plastic are on one End are combined by melting into a bristle strip, bristle pack or the like. Basically, two methods are known for feeding the bristles to the bristle product manufacturing station. On the one hand, the bundles of bristles can be fed in the form of an endless strand and cut to the desired size only directly at the production station, if necessary after the bristle goods have been produced. On the other hand, so-called short cuts can be used, i.e. The bristles are cut to the desired size before the production station, if necessary with machining allowance, and the cut bristles are then fed to the production station in bundles. The invention is concerned only with the latter technique.

When processing bristles cut to length, they are stored approximately parallel to one another in a shaft-like magazine which usually has two parallel walls arranged approximately at a distance from the bristle length. In the lower area of the magazine near the floor there are one or more holes in one wall through which the bristles can be removed in bundles. Bundle grippers in the form of tubes are used for this purpose, which can be inserted into the magazine through the opening, immerse themselves in the bristle supply and at the same time separate a number of bristles corresponding to their free cross section from the remaining bristle supply. The immersion depth is usually somewhat less than the bristle length. After the bundle gripper has been moved out of the magazine, the bundle of bristles located in the bundle gripper and projecting beyond it is brought to the production station.

There are several problems with this type of bristle bundle formation and pick-up. When the bundle gripper is moved into the magazine, the bristles striking the mouth edge of the bundle gripper are displaced transversely to its direction of movement outwards or into the bundle gripper or are also pushed axially in front of the bundle gripper. Due to the first-mentioned effect, the bundle gripper picks up a different number of bristles, so that the bundles have different densities. When the bristles are axially displaced, they fold over on the opposite magazine wall, so they are bent or rolled in with the result that if these bristles are picked up in a bundle during the next operation, the bristles on the bundle gripper will protrude irregularly or even are unusable due to deformation. Attempts have been made to remedy these malfunctions, which were recognized at an early stage by experts, in that the bundle grippers are cut obliquely at their mouth opening (DE 28 49 510, 29 22 877 US 3 471 202). In this embodiment, the edge of the mouth of the bundle gripper does not enter the bristle stock over its entire circumference during the entry movement, but successively with partial areas of its handling. Since the mouth edge nevertheless has a finite thickness, the aforementioned disturbances cannot be completely eliminated. The disadvantage here is in particular that the bristles are mainly displaced to one side due to the inclined opening and thus the degree of filling fluctuates greatly.

The other and primarily practiced version has a bundle gripper with a mouth edge that runs perpendicular to the bristles in the magazine and in which the outer wall is tapered towards the mouth edge, so that the mouth edge is ideally a linear edge. The likelihood that the bristles are axially displaced by the mouth edge is thus severely limited (DE 23 35 468, 25 11 661, 26 46 048, 28 00 146, EP 0 149 996, US 3,563,609). Nevertheless, disturbances of the aforementioned type also occur here.

Disturbances can also occur when the bundle gripper is moved out, in that not all of the bristles that it grips remain in the bundle gripper, but rather get caught in the magazine due to frictional forces or are partially pulled out of the bundle gripper. This applies especially to the bristles on the edge. The reason for this may be an excessively loose filling or the fact that the bristles do not all lie against the end of the bundle gripper opposite the mouth opening, that is to say they rest with one another different lengths in the bundle gripper. One tries to counter this, inter alia, that the wall opposite the bundle gripper is designed as a spring-loaded piston which has a cross section corresponding to the bundle and retracts in the direction of entry when the bundle gripper is retracted, so the bristles gripped by the bundle gripper can thus dodge the bristle supply in the direction of entry . When the bundle gripper is withdrawn, the piston is guided and is intended to guide the bristles to the same length in the bundle gripper (US 3,563,609). Apart from the fact that such a magazine is expensive to build, malfunctions can also occur here, in particular at the transition between the piston and the magazine wall.

Another possibility is seen in (DE 23 35 468) to compress the bristles when the bundle gripper is retracted, in that the bundle gripper has a constriction on the inside, which is either arranged on a medium axial length or at the mouth opening. This may even out the filling level of the bundle gripper, but this is paid for with other disadvantages. The bundle gripper will not fill evenly in depth due to the increasing frictional forces between the bristles. There is also the risk that, due to these increased frictional forces in the edge region, the bristles on the peripheral side protrude further, are pushed onto the opposite magazine bottom and bent over.

Another measure to cleanly separate the bristles in bundles from the supply is that the bundle gripper is provided with deflectors on the outside, which is to reduce the frictional forces between the separated bristles and the bristle supply (DE 23 35 468). It has also been recognized that the bristles within the magazine should, if possible, be in an even, loose pack. To achieve this, bristle-parallel internals are provided within the magazine (EP 0 289 676), which on the one hand absorb part of the pressure of the bristle supply located above the bundle grippers, and on the other hand ensure a loose packing in the area of the bundle grippers. However, there is a risk that the packing in the area of the bundle grippers is completely uneven.

When pulling out the bundle gripper with the separated bristle bundle, bristles adjacent to the bundle gripper can be moved in the direction of extension, if necessary pulled out of the magazine. They then lead to malfunctions during the next operation. The bristle ends on the entry side should therefore be on one level if possible. Similar effects occur when the bundle grippers are retracted by moving the bristles to the opposite side. In order to avoid this, it has been proposed (EP 0 289 676) to design the magazine wall opposite the entry side as an oscillating tapping plate, which acts approximately axially on the ends of the bristles and upsets the entire bristle supply lying in the area of the bundle grippers on the opposite magazine wall. The bristles located in the bundle gripper should also be tapped into it. Since, on the one hand, individual projecting bristles, due to their flexibility, fold slightly in front of the other bristle ends when subjected to axial loads and, furthermore, the bristles can also be deformed there due to the upset on the opposite wall, the described possibility of malfunction is hereby only inadequately eliminated.

Finally, any malfunction occurring on the magazine, which leads to bristles of different lengths protruding from the bundle gripper or to a fluctuating degree of filling, can also have a disadvantageous effect in the subsequent manufacture of the bristle goods. This applies in particular if the bristles are connected to the bristle carrier or formed into a bristle element by a thermal process, such as welding, melting, injection or the like.

The invention has for its object to develop the device mentioned in such a way that a uniform degree of filling is achieved in the bundle gripper and furthermore the bristles adjacent to the bundle gripper are not influenced when entering the magazine and when extending the bundle gripper. Furthermore, a method is to be created with which the bundles gripped by the bundle gripper can be processed into perfect bristle goods.

The first part of the object of the invention is achieved in that the bundle gripper extends on the inside from the mouth opening over a short axial length and then has an axially parallel wall over most of its axial length, forming an inner cross section which is larger than the mouth opening.

The invention is based initially on the knowledge that when the bundle gripper is moved into the magazine, neither thinning nor, in particular, compaction of the bristle pack should take place in order to avoid fluctuating frictional relationships over the bundle cross-section and in the immediate vicinity of this in the bristle supply. It is therefore assumed that the bundle gripper has a cross section at the mouth opening that corresponds to the desired cross section of the bristle bundle, in particular not the one that is picked up my bristles. When the bundle gripper is retracted, the number of bristles loosely filling the desired cross section is first separated from the bristle supply. When moving in further, the bristles then have the possibility of expanding due to the widening cross section, so that no forces are exerted on the bristles over the largest part of the axial length of the bundle gripper and therefore uncontrollable frictional forces between the bristles can also be effective. In other words, the cross-section of the mouth opening, in conjunction with the packing density of the bristles in the magazine, determines the number of bristles per bundle. No further external forces then act on the bristles picked up in this way during further retraction. In conjunction with an approximately linear edge at the opening edge, there is the further advantage that no forces can act on the bristles remaining in the magazine, which are immediately adjacent to the bundle gripper, in particular not those that could lead to an axial displacement of the bristles.

A preferred embodiment is characterized in that the bundle gripper has on the inside an axially parallel wall extending from the mouth opening over a short axial length, to which the continuous curve widening the cross section is connected.

The bundle gripper can basically have any cross-sectional shape, for example circular, oval, polygonal or the like. The continuous curve leading from the mouth opening to the enlargement can be a straight or a convex curve. In the first case, the short axially parallel separation section is adjoined by a conically widening section and in turn an axially parallel wall section is connected to it over most of the axial length.

Another solution to the first-mentioned subtask is that the bundle gripper has a wall on the inside that extends axially parallel over the entire length and that a mandrel is arranged within the bundle gripper in its axis, which has a thickening along a short length in the region of the mouth opening of the bundle gripper axis-parallel contour and has a taper at its free end projecting beyond the bundle gripper.

This solution to the object of the invention results in a hollow bundle. This also ensures that the bristles are not compressed when the bundle gripper is retracted. First, the mandrel with its leading taper moves into the bristle supply and displaces the bristles outwards. Their packing density within the magazine is not influenced or is influenced only to an insignificant extent. Only those bristles that can freely enter the annular space between the mouth opening and the thickening of the dome come loose in the bundle gripper and can then expand and loosen radially after the thickening.

As already indicated at the beginning, deflectors arranged on the outside are known (DE 23 35 468), but these are only effective after a certain entry depth. In contrast, it is proposed according to the invention that the bundle gripper on the outside in direct connection to the mouth opening has a deflector for the bristles adjacent to the separated bristle bundle in the magazine by the outer wall including the taper in a steady curve up to a maximum and then again decreasing wall cross section and then guided axially parallel over most of the length.

The bristles adjacent to the bristles to be separated from the supply are thus increasingly and continuously displaced outwards at the start of the bundle gripper's retraction process and can therefore no longer exert a forceful influence on the separating process, in particular the bristles lying outside in the bundle. The deflector effect right at the start of the running-in process also prevents the bristles adjacent to the separated bundle from being axially loaded and displaced.

Another solution to the object of the invention is that the bundle gripper is driven to rotate about its axis.

The rotational movement, which can be uniform, intermittent or oscillating, causes radial forces between the bundle grippers, which on the one hand support the loosening of the bristles when the bundle grippers are inserted into the magazine, and on the other hand reduce the frictional forces between them. As a result, the degree of filling is further homogenized and the axial forces acting on the bristles near the bundle gripper, which lead to the axial displacement of the bristles, are reduced.

The aforementioned measure can also be supported according to the invention in that the bundle gripper has a short length in the region of the mouth opening on the outside with a profile oriented in the axial direction. The profile is preferably formed from troughs arranged equidistantly on the circumference of the bundle gripper.

As a result, the radial deflector forces when the bundle gripper is retracted are increased and brought to different extents on the individual bristles that surround the bundle gripper in the magazine.

The training is advantageously made such that the troughs have a part-circular cross section. It can be provided that the troughs are designed so that they run out at the edge of the circular mouth opening.

A preferred embodiment is characterized in that the bottom of the troughs lies on a conical surface tapering towards the mouth opening. Applied to the exemplary embodiment described above, this means that the conical surface runs out at the edge of the mouth opening, that is to say it lies in a plane perpendicular to the axis of the bundle gripper.

Another advantageous embodiment is characterized in that the conical surface, on which the bottom of the troughs lies, penetrates the cylindrical surface formed by the opening, so that the edge of the opening is configured like a crown.

In the aforementioned embodiment, there is the advantage that the edge of the mouth opening does not simultaneously hit the ends of the bristles in the magazine over its entire circumference, but rather this process is "stretched" over time, namely to the period of time that the bundle gripper needs to reach the the distance corresponding to the axial depth of the crown-like profile of the opening edge.

It is advantageously provided that the end of the bundle gripper opposite the mouth opening has narrow channels which are connected to a vacuum source. The pressurization of the bristles at their rear end in the bundle gripper is known per se (DE 28 49 510). However, it can only insufficiently fulfill its task there, since the bundle gripper is cut obliquely at its mouth opening, with the result that an increasingly narrowing free cross-section remains open during the retraction process and there is an air flow due to the negative pressure with a continuously increasing flow speed during the retraction process can lead to the fact that the bristles last immersed in the bundle gripper are drawn into the bundle gripper before the other bristles, so that in the final state no uniform bristle protrusion on the bundle gripper is guaranteed.

The bristle bundle picked up by the bundle gripper must be handed over to the production station. This can be done in that the bundle grippers also serve as a means of transport and transfer the bundles directly to the production station and the bundles are attached to the bristle carrier when the bundles are still in the bundle gripper (DE 26 46 048, DE 23 35 368). In another known embodiment (EP 0 149 996, DE 28 08 966), a piston forming its end is provided within the bundle gripper for ejecting the bristle bundles, the bundle gripper having a constant cross section over its entire length. In the embodiment according to the invention it is provided that the piston has a cross section corresponding to the larger inner cross section of the bundle gripper and within the bundle gripper the wall of the same can be shifted closely at most until the beginning of the continuous curve leading to the mouth opening.

As is also known per se (DE 23 35 468), a mandrel is advantageously arranged in the axis of the bundle gripper to form hollow bundles, which mandrel can also be used to form the cross-section described above. In this case, the piston is then guided on the mandrel in order to enable the bundle to be pushed out of the bundle gripper even in the case of a hollow bundle.

To further reduce the forces acting on the bristles when the bundle gripper is retracted, the bundle gripper and the mandrel are preferably smooth-walled on all surfaces that come into contact with the bristles, e.g. polished or coated with a sliding material.

As is also known per se, the bundle gripper can serve as a holder for the bristle bundle during its further processing, and optionally also as a means of transport to the production station.

Devices are also known (DE 28 49 510), in which a guide with at least one guide channel is present, in which the bristle bundle is held during the manufacture of the bristle product. Here, the bristle bundle picked up by the bundle gripper is delivered to the guide channel in order to be processed at the production station. According to the invention, such a device is characterized in that the bundle gripper inserted into the magazine from one side remains in the retracted position with the bristle bundle separated from it, and the bristle bundle by means of the piston towards the opposite side of the magazine in the guide channel of the guide arranged there is movable.

In this embodiment according to the invention, the bristle bundle separated from the bristle supply is only moved in one direction, namely the direction of entry. The bundle gripper moves out with the picked-up bristle bundle on the side of the magazine opposite the entry side. There is therefore no need to pull back the bundle gripper and the resulting malfunctions (taking bundles with you from the bristle supply, bristle stuck in the bristle bundle, etc.). The piston also moves when it is transferred to the production station the bundle always in the same direction.

In an advantageous embodiment it can be provided that the guide is designed as a holder for the bristle bundle and the bristle bundle can be fixed in the guide. The bristle bundle which is transferred from the bundle gripper to the guide is at the same time fixed in the guide in order to bring it into a reproducible production position or to keep it in this position.

For this purpose, for example, the guide can have a clamping device which narrows the cross section of the guide channel and clamps the bristle bundle.

A further advantageous embodiment is characterized in that the guide or a further guide has a plurality of guide channels which are arranged at an angle to one another at least in the region of the exit end of the bristles and in which the bristle bundles are transferred to one of their desired positions on the bristle product appropriate position are distractible.

In this exemplary embodiment, the bundles from the bundle gripper can be pushed directly into the guide channels at the production station by means of the piston and deflected from their original axis at least in the region of their fastening-side end. In this way, the bundles can be brought into any angular position relative to one another and / or to the bristle carrier.

In another embodiment it can be provided that in a plurality of bundle grippers the pistons have different end positions in the bundle grippers and push the bundles correspondingly differently into the guide channels in order to obtain bristle bundles of different lengths on the bristle goods.

In this exemplary embodiment, the bundle ends projecting differently over the guide channels are cut off in a common plane, so that bundles of different lengths are formed in the guide channels and possibly the bundle grippers, which are then connected to the bristle carrier at the trimmed end. In this way, the envelope surface of the bristle ends on the use side can be contoured as desired.

The two aforementioned embodiments can be combined with one another in that the bristle bundles are inserted to different extents by means of the pistons into a first guide, forming a protrusion on the opposite side, and the protrusions are cut off, and that another guide with at least on the opposite is cut in front of the interface Side can be retracted to each other inclined guide channels into which the bristle bundles can be inserted.

With a device of the aforementioned type, bundle length and bundle position can be varied at the same time. In both cases it is advantageous if the bristle bundles with their ends opposite the pistons can be pushed through the guide channels and can be fastened to a bristle carrier by means of the projecting ends.

In the aforementioned embodiments, it can further be provided that after the bundle gripper has been moved into the magazine and before the bristle bundle has been pushed out by means of the piston, the guide or the holder with the guide channel can be moved in front of the mouth opening of the bundle gripper.

Another design option is that the leading end face of the piston for contouring the ends of the bristle bundles has a contour that deviates from the plane.

In this way, the bristles can be contoured concavely or convexly or in some other way within a bundle at its end on the use side, so that the device designed according to the invention for producing any contours on the usable surface of a brush can be produced in connection with the aforementioned embodiments.

As already indicated at the beginning, the packing density of the bristles within the magazine, which in particular must not be too high, is important for the correct and trouble-free removal of the bristles or for the formation of bundles with the same number of bristles. According to the invention, it is therefore provided that the bottom closing the magazine is designed as an oscillating floor which can be set into a vibration which loosens the bristle supply or a part thereof.

With the design according to the invention, static friction or the attractive forces due to static charge between the individual bristles are largely eliminated and the bristles - as is known for the storage of free-flowing goods - are fluidized as it were. This results in a relatively loose packing of the bristles within the magazine, so that when the bundle gripper is retracted, the risk of axial displacement of bristles is considerably reduced and, in particular, the bristles can be largely displaced to the side without force. This also significantly increases the likelihood of the same number of bristles per bundle.

While in the known devices for aligning the ends of the bristles a tapping plate is provided which leads to the difficulties mentioned at the outset, it is provided according to the invention that the wall section which can be made to vibrate is parallel to an opposite wall of the magazine at a distance of this is arranged, which is slightly larger than the length of the bristles in the magazine in each oscillating position.

This design ensures that the vibrating wall section only axially acts on those bristles which - for example when the bundle gripper is retracted - protrude beyond the bristle ends which are otherwise in one plane. In particular, it is avoided that the bristles are compressed against the opposite wall of the magazine, since the shortest distance between the stationary wall and the vibrating wall section is always greater than the bristle length.

The aforementioned requirement can be realized in an expedient embodiment in that adjustable stops are assigned to the wall section which can be set in vibration in order to maintain the distance from the opposite wall.

The uniformity of the bristle pack within the magazine at least in the area of the bundle grippers, as well as to ensure the fluidized state of the bristles, is also the measure provided according to the invention, according to which a compartment is provided which can be moved into the magazine transversely to the bristles and above the bundle gripper and which holds the weight of the bristle stock stored above the bundle gripper.

The compartment is inserted into the magazine immediately after the bundle grippers have been extended and the bristles have slipped, with the result that only the bristles underneath are acted upon by the vibration of the bottom of the magazine and furthermore, defined conditions with regard to the bristle pack are only generated in the area of the bundle grippers Need to become.

The aforementioned effects can also be supported in that the compartment can be raised in the retracted position at least while the bundle gripper is being retracted into the magazine.

In this embodiment, the bristle stock present in the area of the bundle grippers is completely separated in terms of load from the bristle stock located above it, at least during the removal process.

The device according to the invention allows the production of bristle goods in a particularly simple manner and high quality. If, for example, as is known per se, the bristle bundles are melted at one end in the region of the mouth opening of the bundle gripper and brought together with a bristle carrier which has likewise been melted at least in regions, then this method can be improved with the device according to the invention in that the bundle with the mouth opening of the Bundle grippers are pushed flush and melted into the bundle gripper and that when bundles of bristles and bristle carriers are brought together, the bundle gripper is placed tightly on the bristle carrier and the bristle bundle is pressed on by means of the piston.

This method ensures that the melting range of the bristles is limited to the cross-section of the bundle gripper, so that the melt cannot escape laterally. When merging with the bristle carrier, the formation of beads or the like by displaced melt mass is avoided at the joint.

This method can also be further optimized in that the bundle gripper with its mouth opening - including the melt of the bristle bundle and bristle carrier - is placed tightly on the bristle carrier.

In this way it is further ensured that the melt mass is also "gripped" on the bristle carrier and cannot deflect to the side. This results in a clean bundle connection on the bristle holder. Otherwise, the mass to be melted can be reduced to a minimum.

From a procedural point of view, the use of the device according to the invention also gives the possibility that a preformed depression is formed on the bristle carrier with at least one protrusion protruding from the bottom of the depression, that the bristle bundle is flush with the mouth opening of the bundle gripper and into the bundle gripper, forming a Recess is melted that at least the projection in the depression is melted close to the surface and the bundle with its melted depression is pressed into the depression and on the projection by means of the piston.

In this exemplary embodiment, the melt or the fusion connection of the bristle bundle and bristle carrier is shifted into the bristle carrier, so that a clean bundle closure on the bristle carrier is obtained in this way with a sufficient fastening length of the bundle on the bristle carrier.

In the known devices it has also been shown that the bristles on the entry side of the bundle gripper are often split by the leading mouth edge of the bundle gripper. This happens in particular if - as desired per se - the mouth edge is formed into an approximately linear edge. This splitting of individual bristles can be avoided according to the invention in that the bristles cut to length are deburred at least at one of their ends and with the deburred end facing the bundle gripper into the maga be stored.

When the bristles are cut to the desired length, depending on the type of plastic and the cutting tool used, burrs of different dimensions form at the interface. These are obviously responsible for the splitting of individual bristles when the bundle gripper is retracted. Splitting is effectively avoided with the deburring connected upstream according to the invention.

In connection with the method according to the invention, it is also advantageous if the bristles cut to length are machined at least at one end, the later end on the usage side, and are stored in the magazine with the machined ends aligned to one side.

While the bristles are usually processed, for example rounded, only after they have been attached to the bristle carrier, the invention provides for this processing before the bristles are stored in the magazine. Such processing is described in the applicant's earlier patent application P 40 06 325. It leads to a more uniform processing of the bristle ends compared to the known method. This method can be combined with the aforementioned method in that separate deburring can be dispensed with, in that the bristles are stored in the magazine in such a way that their machined ends are on the entry side of the bundle grippers. A separate deburring is thus eliminated and the end processing of the bristles which is favorable for the intended use is also used in process engineering terms in the formation of bundles in order to avoid splitting the bristles.

• Figur 1 eine schematische Seitenansicht einer Vorrichtung zur Erzeugung und Übergabe von Borstenbündeln;
• Figur 2 eine Draufsicht zu der Darstellung gemäß Figur 1;
• Figur 3 einen Axialschnitt einer Ausführungsform des Bündelgreifers in vergrößerter Darstellung;
• Figur 4 eine vergrößerte Ansicht des vorderen Endes des Bündelgreifers gemäß Figur 3;
• Figur 5 einen Axialschnitt einer anderen Ausführungsform des Bündelgreifers;
• Figur 6 eine Detailansicht einer Vorrichtung ähnlich Figur 1;
• Figur 7 ein weiteres Teil der Vorrichtung gemäß Figur 6 im Schnitt;
• Figur 8 eine mit der Vorrichtung gemäß Figur 6 und 7 hergestellte Bürste in schematischer Ansicht;
• Figur 9 eine weitere Ausführungsform des Bündelgreifers im Axialschnitt;
• Figur 10 einen schematischen Teilschnitt einer mit einem Bündelgreifer gemäß Figur 9 herstellbaren Borstenware;
• Figur 11 einen Axialschnitt einer weiteren Ausführungsform des Bündelgreifers;
• Figur 12 eine schematische Ansicht einer Vorrichtung zur Herstellung von Borstenwaren in verschiedenen Betriebszuständen a) bis f);
• Figur 13 eine Teilansicht einer anderen Ausführungsform der Vorrichtung gemäß Figur 12 in verschiedenen Betriebszuständen a) bis d);
• Figur 14 ein weiteres Ausführungsbeispiel der Vorrichtung in schematischer Ansicht in verschiedenen Betriebs zuständen a) und b);
• Figur 15 einen Teilschnitt einer mit der Vorrichtung nach Figur 14 hergestellten Borstenware;
• Figur 16 einen axialen Teilschnitt einer weiteren Ausführung des Bündelgreifers;
• Figur 17 eine Stirnansicht zu Figur 16;
• Figur 18 eine Draufsicht zu Figur 16;
• Figur 19 einen der Figur 16 entsprechenden Teilschnitt einer abgewandelten Ausführungsform;
• Figur 20 eine Stirnansicht zu Figur 19 und
• Figur 21 eine Draufsicht zu Figur 19.

The invention is described below with reference to some exemplary embodiments shown in the drawing. The drawing shows:

• Figure 1 is a schematic side view of an apparatus for producing and transferring bundles of bristles;
• FIG. 2 shows a top view of the representation according to FIG. 1;
• Figure 3 shows an axial section of an embodiment of the bundle gripper in an enlarged view;
• FIG. 4 shows an enlarged view of the front end of the bundle gripper according to FIG. 3;
• FIG. 5 shows an axial section of another embodiment of the bundle gripper;
• FIG. 6 shows a detailed view of a device similar to FIG. 1;
• Figure 7 shows another part of the device according to Figure 6 in section;
• FIG. 8 shows a brush produced with the device according to FIGS. 6 and 7 in a schematic view;
• Figure 9 shows another embodiment of the bundle gripper in axial section;
• FIG. 10 shows a schematic partial section of a bristle product that can be produced with a bundle gripper according to FIG. 9;
• FIG. 11 shows an axial section of a further embodiment of the bundle gripper;
• FIG. 12 shows a schematic view of a device for producing bristle goods in various operating states a) to f);
• FIG. 13 shows a partial view of another embodiment of the device according to FIG. 12 in different operating states a) to d);
• Figure 14 shows another embodiment of the device in a schematic view in different operating states a) and b);
• FIG. 15 shows a partial section of a bristle article produced with the device according to FIG. 14;
• FIG. 16 shows an axial partial section of a further embodiment of the bundle gripper;
• Figure 17 is an end view of Figure 16;
• Figure 18 is a plan view of Figure 16;
• FIG. 19 shows a partial section corresponding to FIG. 16 of a modified embodiment;
• Figure 20 is an end view of Figure 19 and
• Figure 21 is a plan view of Figure 19.

The lower part of a magazine 1 for bristles 2 cut to length can be seen in FIG. The bristles 2 are stored in parallel in the magazine 1. The magazine 1 is formed like a shaft and has parallel walls 3, 4 and a bottom 5. The distance between the walls 3, 4 is slightly larger than the length of the bristles 2. The magazine is filled from above and the weight of the stored bristles is absorbed by the base 5.

A group of bundle grippers 6, which are seated on a movable carrier 7, is arranged on one side of the magazine - assigned to the wall 3. The bundle grippers 6 are tubular, for example cylindrical. However, they can also have any other cross-sectional shape. The rear end of the bundle gripper 6 is formed by a piston 8 each. The pistons 8 are seated on a piston rod 9 on a piston carrier 10 which, together with the carrier 7 of the bundle grippers 6, can be moved in the axis direction shown in dashed lines, but is additionally movable relative to the carrier 7, so that the pistons 8 can dip into the bundle grippers 6.

The bundle grippers 6 can be moved to the magazine with the carrier 7 and the carrier 10. The wall 3 of the magazine 1 has openings 11, the cross section of which corresponds to the outer cross section of the bundle grippers 6. The bundle grippers 6 can be inserted into the magazine 1 through these openings 11. Each bundle gripper 6 separates a number of bristles 2 forming a bundle from the stock stored in the magazine 1 and is picked up by the bundle gripper 6 during the entry movement.

The opposite wall 4 of the magazine 1 has in the region of the bundle grippers 6 a wall section 12 which can be set in vibration in the direction of extension of the bristles. The wall section 12 serves to move the embedded bristles 2 in the working area of the bundle grippers 6 in the direction of the wall 3 in order to abut them flush at their end facing the wall section 12. The wall section 12 is arranged in such a way that it is at a distance from the opposite wall 3 in each oscillating position, which is slightly larger than the bristle length. This can be ensured, for example, by the limit stops 13 shown in FIG. 2.

The bottom 5 of the magazine 1 can, as is also indicated schematically, be set in vibration, the direction of vibration being approximately vertical. As a result, the stored bristles 2 are shaken in order to achieve a uniform packing density. In connection with the detail of the device described below, the bristles 2 are "fluidized" by means of the base 5 into a kind of vibrating state.

Above the working area of the bundle grippers 6 are arranged dividers 14 which, as can be seen in FIG. 2, are designed as narrow lances and can be inserted into aligned openings 15 in opposite end walls of the magazine 1. They take up the weight of the bristle stocks stored above the working area of the bundle grippers 6. In order to allow the loosening effect due to the vibrating base 5 to take full effect on the bristles lying in the working area of the bundle grippers 6, the dividers 14 can also be raised and lowered. Before each working stroke of the bundle gripper 6, that is to say in the operating state shown in FIG. 1, they are retracted and raised. The compartments remain in this position at least until the bundle grippers 6 have completed their working stroke. Then they are extended so that the bristles can slide out of the upper area of the magazine 1 after the bundle grippers 6 have been extended.

On the side opposite the bundle grippers, a guide 16 with parallel guide channels 17 is arranged, which are aligned with the bundle grippers 6 on the opposite side. A guide 18 is also assigned to the guide 16, which in the exemplary embodiment shown is designed as a clamping device. The clamping device 18 consists of a plate-like slide 19, which in turn is provided with openings 20, the cross section of which corresponds approximately to that of the guide channels 17 or the inner cross section of the bundle grippers 6. The slide 19 is displaceable transversely to the axis of the guide channels 17, so that the openings 20 can be brought into a position offset from the guide channels 17.

• In der in Figur 1 gezeigten Ausgangsposition, in der die Abteiler 14 die Borsten im oberen Bereich des Magazins 1 aufnehmen und sowohl der Boden 5, als auch der Wandabschnitt 12 in Schwingung versetzt sind, werden die Bündelgreifer 6 mittels des Trägers 7 durch die Öffnungen 11 in das Magazin eingefahren und trennen jeweils eine Anzahl von Borsten aus dem Borstenvorrat ab, die dann jeweils ein Bündel bilden. Haben die Bündelgreifer 6 ihre Endposition erreicht, bei der beispielsweise der Träger 7 gegen die Seitenwand 3 des Magazins 1 anläuft, wird der Wandabschnitt 12 seitlich ausgefahren, die Führung 16 an die dann freiliegenden Enden der Borsten herangefahren, so daß die Bündelgreifer 6 mit ihrem vorderen Ende der ihnen zugekehrten Stirnwand der Führung 16 etwa anliegen. Es werden dann die in den Bündelgreifern 6 befindlichen Borstenbündel mittels der Kolben 8 durch Verfahren des Kolbenträgers 10 aus den Bündelgreifern ausgeschoben und in die Führungskanäle 17 der Führung 16 eingeschoben. Anschließend wird der Schieber 19 aus der in Figur 1 gezeigten Position quer zu den Führungskanälen 17 verfahren, so daß die in den Führungskanälen 17 befindlichen Borstenbündel klemmend fixiert sind. Dann fahren die Bündelgreifer 6 mit dem Kolben 8 wieder in die Ausgangslage gemäß Figur 1 zurück. Schon gegen Ende der Einfahrbewegung der Bündelgreifer 6 können die lanzenartigen Abteiler 14 aus dem Magazin herausgezogen werden, so daß die Borsten 2 nachrutschen. Ferner fährt die Führung 16 nach Übergabe der Bündel gleichfalls wiederum in die in Figur 1 gezeigte Position und weiterhin fährt der Wandabschnitt 12 wieder in seine die Wand 4 vervollständigende Position. Die Borsten 2 im Arbeitsbereich der Bündelgreifer 6 werden mittels des schwingenden Wandabschnittes 12 wieder bündig gestoßen.

The operation of the device according to Figures 1 and 2 is described below:

• In the starting position shown in FIG. 1, in which the dividers 14 pick up the bristles in the upper region of the magazine 1 and both the bottom 5 and the wall section 12 are set in vibration, the bundle grippers 6 are moved through the openings 11 by means of the carrier 7 retracted into the magazine and separate a number of bristles from the bristle stock, which then each form a bundle. Have the bundle grippers 6 reached their end position, in which, for example, the carrier 7 runs against the side wall 3 of the magazine 1, the wall section 12 is extended laterally, the guide 16 is moved up to the exposed ends of the bristles, so that the bundle grippers 6 with their front About the end of the end wall of the guide 16 facing them. The bristle bundles located in the bundle grippers 6 are then pushed out of the bundle grippers by means of the pistons 8 by moving the piston carrier 10 and inserted into the guide channels 17 of the guide 16. The slide 19 is then moved transversely to the guide channels 17 from the position shown in FIG. 1, so that the bristle bundles located in the guide channels 17 are fixed in a clamped manner. The bundle grippers 6 then move the piston 8 back into the starting position according to FIG. 1. Already at the end of the retracting movement of the bundle grippers 6, the lance-like dividers 14 can be pulled out of the magazine, so that the bristles 2 slide down. Furthermore, after the bundles have been handed over, the guide 16 likewise moves again into the position shown in FIG. 1 and the wall section 12 continues to move into its position which completes the wall 4. The bristles 2 in the working area of the bundle grippers 6 are pushed flush again by means of the oscillating wall section 12.

Figures 3 and 4 show partial sections of an embodiment tion form of the bundle gripper 6. At the front end 21, with which the bundle gripper dips into the magazine, the outer wall is drawn inwards while reducing the wall thickness, preferably in such a way that the mouth opening 22 has an approximately linear opening edge. This can be seen in particular in FIG. 4. The free cross-section A of the bundle gripper 6 in the region of the mouth opening 22 determines the cross-section of the bundle taken up in a packing density as is present in the lower region of the magazine 3. In the exemplary embodiment shown, the bundle gripper 6 has this cross section A over a short axial length C. The inner wall 23 of the bundle gripper deviates from the cross section A over a likewise comparatively short axial length D in a continuous curve, possibly a straight line, to a larger inner cross section B. The bundle gripper has this larger inner cross section B over most of its axial length, as shown in FIG. 3.

In the exemplary embodiment shown in FIG. 5, the bundle gripper 6 is additionally provided at its front end 21 with a deflector 24, which was obtained by increasing the wall thickness only on the outside. The deflector 24 thus forms a thickening on the outside, which is formed in the axial direction by a continuous curve, which starts at the mouth opening 22 and extends over a short axial length, in order then to merge again into the smaller outside diameter of the bundle gripper 6. Furthermore, in this exemplary embodiment, the bundle gripper 6 is connected to negative pressure in the space 25 behind the piston 8. In order to bring this into effect in the space 26 accommodating the bundle, the piston 8 is provided with a large number of bores 27 with a very small diameter. The diameter is in particular smaller than that of the bristles. The negative pressure in the room 25 supports the inclusion of the bristles in the room 26. It can be done in such a way that the piston 8 has moved forward in the starting position (see FIG. 1) and moves back in accordance with the retraction speed of the bundle gripper 6 so that all of the Bundle grippers can be used to suck in separated bristles.

FIG. 6 shows an embodiment of the device modified compared to FIGS. 1 and 2, the magazine 1 not being shown for the sake of clarity. In this embodiment, the front end face 28 of the piston 8 is curved in a dome shape, so that the bundle 29 picked up by the bundle gripper 6 is contoured at the end facing the end face 28 of the piston 8 by the bristles 2 inside when the bundle 29 is pushed out of the bundle gripper 6 of the bundle are moved axially to each other. Furthermore, the pistons can be arranged on piston rods 9 of different lengths (see middle piston 8 in FIG. 6) or can carry out strokes of different lengths, so that when the bundles 29 are transferred from the bundle grippers 6 to the guide 16, the bundles 29 on the one hand contour the ends , for example the ends lie on a spherical surface, on the other hand the bundles 29 protrude differently beyond the guide after transfer to the guide channels 17 of the guide 16. In this way, the envelope surface of all the bundles of bristle trimmings can also be contoured.

In the exemplary embodiment shown, the bundles 29 are cut flush at their ends projecting beyond the guide 16 on the opposite side by means of a cutting device 30. This then results in the further possibility, after the cutting device 30 has been extended, of retracting a further guide 31 in front of the guide 16, the guide channels 32 of which are not or only partially aligned with the guide channels in the guide 16. In particular, as can be seen in the outer channels 32, they can run at an angle to the guide channels 17. By pushing onto the bundle from the left side in FIG. 7, the bundle can then be deflected at least partially into an angular position at the opposite end. In this position, they can be attached to a bristle carrier 33 (FIG. 8), so that the schematic bristle trim shown there results, in which the bundles 29 are set at an angle to one another, the end of each individual bundle is contoured and the ends of all bundles are in turn a contoured envelope surface.

A further exemplary embodiment of the bundle gripper 6 is shown in FIG. It is used to produce bundles with an axial channel free of bristles. For this purpose, a mandrel 34 is arranged in the axis of the bundle gripper 6, which is tapered to a rounded tip 35 at its end projecting beyond the mouth opening 22. The piston 8 is guided on the mandrel 34. When this bundle gripper 6 is moved into the bristle supply, the bristles are displaced outwards from the center by means of the dome 34, so that a hollow bundle is created. Such bristle bundles are required, for example, for applicators, as is shown schematically in FIG. 10. Such an application device 36 has at least one channel 37 through which the medium can exit the device. The application device 36 is equipped with a bundle 38, which was produced with a bundle gripper 6 according to FIG. 9 and has a channel 39 in the center, which, for example as the channel 37 of the device extended.

FIG. 11 shows an embodiment of the bundle gripper which is modified compared to FIGS. 3 and 4 and which can also be used in the sense of the embodiment according to FIG. In the bundle gripper 6 according to FIG. 11, the narrowest cross section provided in the region of the mouth opening 22 (see section C in FIG. 4) is produced in that the bundle gripper 6 has a wall on the inside that is axially parallel over the entire axial length. A mandrel 34 is in turn arranged in the bundle gripper 6, but it has a thickening 40 at its front end, again with an axis-parallel contour. In the area projecting over the bundle gripper 6, the mandrel tapers again to a rounded tip 41. This ensures that when the bundle gripper is moved into the bristle supply, the bristles are initially displaced outwards and only the ends of the bristles in the region of the mouth opening 22 are gripped by the bundle gripper 6 without the bristles being compressed.

Figure 12 shows a schematic representation of the process in the production of, for example, a brush or the like. Again, the components already described with reference to FIG. 1 are present and provided with the same reference symbols. In addition, on the side of the guide 16 opposite the magazine 1, a holder 42 can be seen which receives a bristle carrier 43. Furthermore, a heating device 44 is shown, which can be moved in between the guide 16 and the bristle carrier 43, to which the bristle bundles are to be fastened. The bundle gripper 6 moves into the magazine 1 with the piston 8 retracted, separates a bundle 29 from the bristle supply there (FIG. 12 b)). After the oscillatable wall section 12 has moved away, the guide 16 moves up to the exposed ends of the bristles. The piston 8 is moved into the bundle gripper 6 and pushes the bristle bundle 29 on the opposite side of the magazine 1 into the channel 17 of the guide, the bundle 29 projecting over the guide 16 on the opposite side (FIG. 1 c)). Then the heating device 44 is moved in front of the free end of the bristle bundle 29 and at the same time the bristle carrier 43 with the holder 42 is moved towards the heating device. The bundle 29 is melted at its end and the bristle carrier 43 on the side facing the heating device 44, a thickening being formed, for example, at the end of the bundle. After the heating device 44 has been moved out and the bristle carrier 43 has been brought up, the end of the bundle penetrates into the melt of the bristle carrier 43 (FIG. 12e)). After briefly cooling, the components of the device are moved apart, as shown in Figure 12 f). The finished brush 45 can then be removed.

In the exemplary embodiment according to FIG. 13, again a bundle gripper 6 with a piston 8 can be seen, which tapers towards its mouth opening 22 in a manner similar to that which has already been described with reference to FIG. 3. Furthermore, a heating device 46 and a bristle carrier 47 are shown in sections. In this embodiment, the bundle gripper 6 is used directly for the production of bristle goods. Compared to the embodiments according to FIGS. 1, 2 and 12, the device therefore does not require a guide 16. The heating device 46 has a heating mirror 48 on the side facing the bundle gripper 6 and a heating piston 49 on the opposite side. The bundle gripper 6 receives the bristle bundle 29 in such a way that the free ends of the bristles are flush with the mouth opening 22. This can either be achieved on the occasion of removal from the magazine or by pushing the bundle 29 or the bristle gripper 6 against a stop plate. In this position (FIG. 13 a)), in which the bundle 29 is supported at its rear end by the piston 8, the heating device 46 with the heating mirror 48 is moved towards the opening edge 22 and at the same time the bristle carrier 47 is moved towards the heating piston 49. The bundle 29 is melted at its free end located within the bundle gripper 6, as can be seen at 50, the shortening of the bristles occurring when the piston melting being able to be compensated for if necessary. At the same time, the bristle carrier 47 is partially melted on its surface, as shown at 51. The heating piston 49 is advantageously designed in such a way that the melting region 51 that is formed has an outer contour that is smaller than the cross section of the orifice opening 22 (FIG. 13 b)). After a short retraction of the bristle carrier 47, the heating device 46 is moved out and the bundle gripper is placed directly on the surface of the bristle carrier, the mouth opening 22 meeting a non-deformable area of the bristle carrier (FIG. 13 c)). As a result, the melt is gripped on the circumference and cannot escape to the outside. In order to obtain sufficient pressure in the melting range, the piston can carry out a short forward stroke. Subsequently, the bundle gripper 6 is retracted, if necessary while stopping the piston 8, and the bristle goods shown in FIG. B. a brush.

In the exemplary embodiment according to FIG. 14, the same components of the device as shown in FIG. 13 are shown. Here, however, a prepared bristle carrier 47 is used, which has a recess 52 for receiving the bristle bundle 29. A projection 53 is arranged within the depression 52, but does not protrude as far as the free surface 54 of the bristle carrier. The depression 52 also has a constriction 55 on the surface 54 corresponding to the diameter of the bundle 29. In this case, the heating device 26 has a hollow heating piston 57 on the side of the bristle carrier 47, the inner contour of which corresponds approximately to that of the projection 53. On the side facing the bristle bundle 29, the heating device 56 likewise has a heating piston 58, which in this case is stepped. The heating piston 58 tapers over the steps to its free end. In this embodiment, the bundle gripper 6, the heating device 56 and the bristle carrier 47 are moved together, as shown in FIG. 14 b). The heating piston 57 of the heating device 56 melts the material of the projection 53 and the bottom of the depression 52 at least in the region near the surface. Immediately the bristles of the bundle 29 are melted from their end and an inwardly deepened melting area 59 is created. After the heating device has been moved apart and extended, the bristle bundle 29 and the bristle carrier 47 are moved together, the bundle 29 penetrating into the depression 52 and the melted region 59 of the bristles connecting to the near-surface melt of the projection 53 or the bottom of the depression 52. The connection thus lies, as can be seen from FIG. 15, within the bristle carrier 47, so that no changes occur on its free surface 54. Otherwise, the bundle 29 is supported laterally by the constriction 55.

16 to 18, a further embodiment of a bundle gripper 6 is shown. It is cylindrical over most of its axial length and tapers on the outside in the region of its end 21 towards the mouth opening 22. At the end 21, the bundle gripper also has a profile 60 which, in the exemplary embodiment shown, is formed by troughs 61 which are arranged at the same distance from one another on the circumference. The troughs 61, as can be seen in FIG. 17, have a part-circular cross section and their base 62 lies on a conical surface 63 (FIG. 16) which has a flatter angle than the conical taper at the end 21 of the bundle gripper. The bottom 62 of the troughs and thus the conical surface 63 run out at the edge of the mouth opening 22. The bristles 2 ′ are deflected outwards when the bundle gripper is moved into the magazine, while the bristles 2 ″ are gripped by the bundle gripper 6.

The bundle gripper 6 is rotatably driven about its axis 64. This can be done uniformly, intermittently or - as indicated in FIG. 17 with the double arrow 65 - in an oscillating manner, so that the bristles that get into the troughs 61 are also acted upon by a tangential component, as is the case with the arrows in FIG. 17 is indicated.

In the exemplary embodiment according to FIGS. 19 to 21, the bottom of the troughs 61 lies on a conical surface 66 that runs steeper than that in FIG. 16, for example has the same angle of inclination as the conical taper at the end 21 of the bundle gripper 6. The conical surface 66 penetrates the cylinder formed by the inner wall of the bundle gripper 6, so that the edge of the mouth opening 22 is profiled in a crown-like manner (FIG. 21).

Claims (38)

1. Device for producing bristle bundles with a shaft-like magazine, which holds a larger stock of bristles cut to length and layered approximately in parallel, and with at least one tubular bundle gripper, which has an internal cross section corresponding to the desired cross section of the bristle bundle at the mouth opening is retractable into the magazine and at the same time separates at least one bristle bundle from the bristle supply, characterized in that the bundle gripper (6) widens on the inside from the mouth opening (22) over a short axial length (D) in a steady curve and then on the Most of its axial length has an axially parallel wall (23) with the formation of a larger internal cross-section (D) than the mouth opening. 2. Device according to claim 1, characterized in that the bundle gripper (6) on the inside has an axially parallel wall extending from the mouth opening (22) over a short axial length (C), to which the cross-section-widening, short axial section adjoins . 3. Device for producing bristle bundles with a shaft-like magazine, which holds a larger stock of bristles cut to length and layered approximately in parallel, and with at least one tubular bundle gripper, which has an internal cross section at the mouth opening corresponding to the desired cross section of the bristle bundle is retractable into the magazine and thereby separates at least one bristle bundle from the bristle supply, in particular according to claim 1 or 2, thereby ge indicates that the bundle gripper (6) has on the inside a wall that extends axially parallel over the entire length and that a mandrel (34) is arranged within the bundle gripper in its axis, which has a short length in the area of the mouth opening (22) of the bundle gripper Thickening (40) with an axially parallel contour and at its free end projecting beyond the bundle gripper has a taper (41). 4. Device according to one of claims 1 to 3, characterized in that the bundle gripper (6) on the outside in direct connection to the mouth opening a deflector (24) for the bristle bundle (29) adjacent to the separated bristles (2) in the magazine (1 ) in that the outer wall is guided in a continuous curve up to a maximum and then decreasing wall cross-section and then axially parallel over most of the length. 5. Apparatus for producing bristle bundles with a shaft-like magazine, which holds a larger stock of bristles cut to length and layered approximately in parallel, and with at least one tubular bundle gripper, which has an internal cross section corresponding to the desired cross section of the bristle bundle at the mouth opening is retractable into the magazine and thereby separates at least one bristle bundle from the bristle supply, in particular according to one of claims 1 to 4, characterized in that the bundle gripper (6) is driven so as to be rotatable about its axis. 6. The device according to claim 5, characterized in that the bundle gripper (6) is driven with a uniform, an intermittent or an oscillating rotary movement. 7. Apparatus for producing bristle bundles with a shaft-like magazine, which holds a larger stock of bristles cut to length and layered approximately in parallel, and with at least one tubular bundle gripper that has an internal cross section corresponding to the desired cross section of the bristle bundle at the mouth opening, which cross section in the magazine is retractable and at the same time separates at least one bundle of bristles from the bristle supply, in particular according to one of claims 1 to 6, characterized in that the bundle gripper (6) has a short length on the outside in the region of the mouth opening (22) with a profile oriented in the axial direction . 8. The device according to claim 7, characterized in that the profile consists of on the circumference of the bundle gripper (6) equidistantly arranged troughs (61). 9. Apparatus according to claim 7 or 8, characterized in that the troughs (61) have a part-circular cross section. 10. Device according to one of claims 7 to 9, characterized in that the troughs (61) are designed such that they run out at the circular edge of the mouth opening (22). 11. Device according to one of claims 7 to 10, characterized in that the bottom (62) of the troughs (61) lies on a conical surface tapering towards the mouth opening (22). 12. The device according to one of claims 7 to 11, characterized in that the conical surface on which the bottom (62) of the troughs (61) lies, penetrates the cylindrical surface formed by the mouth opening (22), so that the edge of the mouth opening is crown-like is trained. 13. The device according to one of claims 1 to 12, characterized in that the opening of the mouth (22) opposite end of the bundle gripper (6) has narrow channels (27) which are connected to a vacuum source. 14. Device according to one of claims 1 to 13 with a piston forming the end of the bundle gripper for ejecting the bristle bundle, characterized in that the piston (8) has a cross section corresponding to the larger internal cross section (B) of the bundle gripper (6) and within the The bundle gripper of the wall of the same can be shifted at most up to the beginning of the continuous curve leading to the mouth opening (22). 15. The device according to one of claims 1, 2 and 4 to 14, characterized in that a mandrel (34) is arranged to form hollow bundles (38) in the axis of the bundle gripper (6). 16. The device according to one of claims 1 to 15, characterized in that the piston (8) is guided on the mandrel (34). 17. The device according to one of claims 1 to 16, characterized in that the bundle gripper (6) and the mandrel (34) on all surfaces in contact with the bristles (2) in contact with smooth walls, e.g. is polished or coated with a sliding material. 18. Device according to one of claims 1 to 17, characterized in that the bundle gripper (6) serves as a holder for the bristle bundle (29) in its further processing. 19. Device according to one of claims 1 to 18, characterized in that the bundle gripper (6) after moving out of the magazine (1) serves as a means of transport for the bristle bundle (29) for its further processing. 20. Apparatus for producing bristle goods with bundles of bristles arranged with a shaft-like magazine, which holds a larger stock of bristles cut to length and layered approximately in parallel, and with at least one tubular bristle gripper which is closed on one side by a movable piston and can be moved into the magazine is and thereby separates a bundle of bristles from the bristle supply, and with a guide with a guide channel in which the bundle of bristles is held during the manufacture of the bristle goods, in particular according to one of claims 1 to 19, characterized in that the one side into the Magazine (1) retracted bundle gripper (6) with the bristle bundle (29) separated from it remains in the retracted position and the bristle bundle by means of the piston (8) towards the opposite side of the magazine in the guide channel (17) of the guide (16 ) is movable. 21. Device according to one of claims 1 to 20, characterized in that the guide (16) is designed as a holder for the bristle bundle (29) and the bristle bundle (29) in the guide (16) can be fixed. 22. The apparatus according to claim 21, characterized in that the guide (16) has a cross-section of the guide channel (17) narrowing and clamping the bristle bundle clamping device (18). 23. The device according to claim 1 to 22, characterized in that the guide (17) or a further guide (31) has a plurality of guide channels (32) which are arranged at an angle to one another at least in the region of the exit end of the bristles (2) and in which the bristle bundles (29) can be deflected during the transfer into a position corresponding to their desired position on the bristle product (33). 24. Device according to one of claims 1 to 23, characterized in that in the case of a plurality of bundle grippers (6), the pistons (8) have different end positions in the bundle grippers and the bundles (29) correspondingly different distances into the guide channels (17, 32 ) to get bristle bundles of different lengths on the bristle goods (33). 25. The device according to one of claims 1 to 24, characterized in that the bristle collars (29) by means of the piston (8) in a first guide (17) inserted to form a protrusion on the opposite side to different extents and the protrusions are cut off, and that in front of the interface a further guide (31) with guide channels (32) inclined towards one another at least on the opposite side can be inserted, into which the bundles of bristles (29) can be inserted. 26. Device according to one of claims 1 to 25, characterized in that the bristle bundles (29) with their ends opposite the pistons (8) can be pushed through the guide channels (17, 32) and fastened to a bristle carrier (43) by means of the projecting ends are. 27. The device according to one of claims 1 to 26, characterized in that after the bundle gripper (6) is retracted into the magazine (1) and before the bristle bundle (29) is pushed out by means of the piston (8), the guide (17, 31 ) or the holder with the guide channel (17, 32) in front of the opening (22) of the bundle gripper (6) is retractable. 28. Device according to one of claims 1 to 27, characterized in that the leading end face (28) of the piston (8) for contouring the ends of the bristle bundle (29) has a contour deviating from the plane. 29. Device for producing bristle goods with bundles of bristles arranged with a shaft-like magazine that holds a larger stock of bristles cut to length and layered approximately in parallel and with at least one tube-like bundle gripper that can be moved into the magazine and thereby separates a bundle of bristles from the bristle supply, especially after one of the Claims 1 to 28, characterized in that the bottom (S) which closes the magazine (1) at the bottom is designed as an oscillating floor which can be set in a vibration which loosens up the bristle supply or a part thereof and sets it in a floating state. 30. The device according to claim 29, wherein a wall of the magazine has, at least in the area acted upon by the bundle grippers, a section which can be made to vibrate in the axial direction of the bristles, characterized in that the vibratable wall section (12) is parallel to an opposite wall (3rd ) of the magazine (1) is arranged at a distance from it, which in each oscillation position is slightly larger than the length of the bristles (2) located in the magazine. 31. The device according to claim 30, characterized in that the vibratable wall section (12) adjustable stops (13) are assigned to maintain the distance from the opposite wall (3). 32. Device for producing bristle goods with bundles of bristles arranged with a shaft-like magazine, which holds a larger stock of bristles cut to length and layered approximately in parallel, and with at least one tube-like bundle gripper which is closed on one side by a movable piston and can be moved into the magazine and thereby separates a bundle of bristles from the bristle supply, in particular according to one of claims 1 to 31, characterized in that a divider (14) can be inserted into the magazine (1) transversely to the bristles (2) and above the bundle gripper (6) is the weight of the bristle stock stored above the bundle gripper (6). 33. Apparatus according to claim 32, characterized in that the divider (14) in the retracted position can be raised at least during the retraction of the bundle gripper (6) in the magazine (1). 34. A method for producing bristle goods by means of a device according to one of claims 1 to 33, in that the bristle bundles are melted at one end in the region of the mouth opening of the bundle gripper and are brought together with a bristle carrier which is likewise at least partially melted on, characterized in that the bundles ( 29) are pushed flush with the mouth opening (22) of the bundle gripper (6) and melted into the bundle gripper and that when the bristle bundles (29) and bristle carriers (47) are brought together, the bundle gripper (6) is placed tightly on the bristle carrier and the bristle bundle is means of the piston (8) is pressed. 35. The method according to claim 34, characterized in that the bundle gripper (6) with its mouth (22), the melt (50, 51) of bristle bundle (29) and bristle carrier (47) is placed tightly on the bristle carrier. 36. Method for producing bristle goods by means of a device according to one of claims 1 to 33, in that the bristle bundles are melted at one end in the region of the mouth opening of the bundle gripper and are brought together with a bristle carrier which is likewise melted at least in regions, characterized in that on the bristle carrier ( 47) a preformed depression (52) is formed with at least one projection (53) projecting from the bottom of the depression such that the bristle bundle (29) is flush with the mouth opening (22) of the bundle gripper (6) and into the bundle gripper, forming a recess (59) is melted so that at least the projection (53) in the recess (52) is melted close to the surface and the bundle (29) with its melted recess is pressed into the recess and on the projection by means of the piston (8). 37. The method according to any one of claims 34 to 36, characterized in that the bristles (2) cut to length are deburred at least at one of their ends and with the deburred end facing the bundle gripper (6) into the magazine (1). 38. The method according to any one of claims 34 to 37, characterized in that the bristles (2) cut to length at least on them rem one end, the later use end, processed and stored with the processed ends aligned to one side in the magazine (1).

Images