BUNDLE TACKLE, BRUSH MANUFACTURING MACHINE, METHOD FOR MANUFACTURING A BUNDLE TACKLE AND METHOD FOR MANUFACTURING A COUNTERPART OF A BUNDLE TACKLE

Description

[0001] The invention relates to bundle removal devices for brush manufacturing machines. Each of the bundle removal devices comprises a bundle remover movable relative to a material box and a counterpart fixed relative to the movable bundle remover. The bundle remover has at least one bundle removal notch on its front side facing a bristle supply held in the material box in the use position. For removing a bristle bundle from the bristle supply and for delivering a received bristle bundle to the brush manufacturing machine, the bundle removal notch can be moved past the bristle supply and the counterpart at least to a delivery position with the at least one bundle removal notch. The bundle removal notch has two opposing knife edges oriented transversely to the direction of movement of the bundle remover, which delimit a notch opening of the bundle removal notch, and the counterpart has a dividing edge facing the bundle remover.

[0002] The invention also relates to a brush manufacturing machine with a material box for storing a supply of bristles and with a bundle removal device which has at least one bundle remover for removing bundles of bristles from the material box.

[0003] Furthermore, the invention also relates to methods for producing a bundle collector and methods for producing a counterpart of a bundle collector device.

[0004] Such bundle removal devices, brush manufacturing machines, methods for manufacturing a bundle remover and methods for manufacturing a counterpart of a bundle removal device are known from the prior art in various embodiments.

[0005] EP 0 433 470 A1 discloses a brush stuffing machine with a rotating turret on which several brush bodies are mounted. A double stuffing tool allows two brush bodies arranged on the turret to be stuffed with bristle bundles.

[0006] A brush stuffing device for stuffing and securing bristle bundles in a brush body or an intermediate container is previously known from WO 2015 / 185721 A1. The brush stuffing device comprises a bundle separator with receiving recesses for bristle bundles on its outer circumference. Furthermore, a transfer tool is provided that transfers the individual bristle bundles to a stuffing tool.

[0007] The document DE 299 07 810 U1 deals with a universal milling and drilling machine that has an HSC milling head.

[0008] When separating or removing bristles, also known as filaments, from a material box, which can also be generally referred to as a storage container for bristles, filaments or bristle filaments cut to a specific length, individual bristles are removed from the material box using a so-called bundle removal notch as a bundle remover moves past. As soon as the bundle remover leaves the removal area in front of the material box with the bundle removal notch, the bundle removal notch is closed using a counterpart, so that a bundle consisting of a defined number of individual bristle filaments or bristles arranged in the bundle removal notch is securely positioned in the bundle removal notch. This bristle bundle is then transported to the next work step with the help of the bundle remover.It can be provided that the bristle bundle is fed to a stuffing tool of a brush manufacturing machine and is anchored in a brush body together with a wire anchor by means of this stuffing tool.

[0009] In another type of brush production, the bristle bundle is fed to a tool with the help of the bundle picker, which deposits the bristle bundle in a cassette or other container. However, it is also possible to remove the bristle bundle arranged in the bundle picker notch from the cassette or other container using a suction device. This procedure is often used in connection with the so-called anchorless production of brushes.

[0010] In conventional brush manufacturing machines, the bristle bundles consist of individual, round bristle filaments that are cut on both sides. The bundles are removed from the material box of the brush manufacturing machine with the help of a bundle remover and a counterpart of a bundle removal device, folded in half with a stuffing tool, and stuffed into a brush or toothbrush body with an anchor wire. After stuffing, the ends of the bundles are trimmed to a specific length or profile with a milling cutter. The ends of the bristle bundles are then rounded off in several grinding processes. When separating the bristle bundles from the material box and inserting the bristle bundles into the brush body, warping of individual bristle bundles or even just individual bristle filaments can occur.In this context, warpage means that the bristle bundle or individual bristle filaments within the bristle bundle are displaced to one side and can thus, for example, protrude from the bristle area of ​​the finished brush after the stuffing process. This is remedied in prior art brush manufacturing machines by subsequent milling and grinding of the bristle area.

[0011] If more demanding bristle material is to be used in processing, for example bristle filaments whose ends have been pre-treated and which, once separated from the material box, no longer allow processing of their filament ends, higher demands may be placed on the quality and precision of the removal and feeding of the bristle bundles using the bundle remover. These special requirements arise in particular when processing pre-rounded bristle filaments, chemically and / or mechanically sharpened bristle filaments and also bristle filaments whose bristle ends have markings. Even with bristle filaments that are not round, for example those with a square, polygonal, x-shaped or even hollow cross-section, the removal of the bristle filaments from the material box and their feeding to the downstream processing steps is particularly demanding.

[0012] The bundle picker is often guided past the material box with the bundle picker notch between two reversal points in a stroke and return stroke. During the return stroke, the bundle picker notch is empty and can be filled with bristle filaments after passing the counterpart on / in the material box. After another reversal of the movement, the bundle picker notch meets the counterpart again and passes a so-called dividing edge, which is formed on the counterpart and faces the bundle picker.

[0013] At this moment the bundle removal notch begins to close as the bundle removal notch slides past the parting edge of the counterpart and is thus covered and closed by a collector side of the counterpart facing the bundle remover. When the bundle removal notch closes, the bristle filaments in the bundle removal notch are finally separated from those in the material box. Some bristle filaments are pushed back into the material box along a counterpart tip where the parting edge of the counterpart is formed. Some bristle filaments are held back in the bundle removal notch. When the bundle removal notch is closed by the counterpart, individual bristle filaments may be damaged. There is a risk that damaged elements will be pushed back into the material box or remain in the bundle removal notch.

[0014] This can result in damaged bristle filaments being processed or in the bristle filaments being pushed back into the material box being removed from the material box at a later point in time using the bundle removal notch and then fed into subsequent processing steps.

[0015] Processing damaged bristle filaments can cause subsequent defects, even leading to the rejection of finished brushes. Some of the damaged bristle filaments may be kinked and protrude from the sides of the bristle bundle. Some filaments are distorted and protrude from the top of the bristle area of ​​the finished brush. Especially in toothbrushes, damaged bristle filaments can fall out during brushing and may even be swallowed.

[0016] The object of the invention is therefore to provide a bundle removal device, a brush manufacturing machine and methods for producing bundle removers and counterparts of bundle removal devices of the type defined at the outset, with which the previously outlined disadvantages of the bundle removal devices and brush manufacturing machines known from the prior art can be reduced or even avoided.

[0017] This object is achieved in a bundle removal device of the type mentioned at the outset with the means and features of the independent claim directed to such a device and in particular in that at least one of the two knife edges and / or the dividing edge is / are rounded transversely to its longitudinal extent.

[0018] It has been found that the geometry of the edges that interact when separating bristle bundles from the bristle supply in the material box—namely, at least one knife edge of the bundle remover and, on the other hand, the dividing edge of the counterpart—plays a crucial role in the minimally or even damage-free removal of bristle filaments from the material box. By rounding at least one of the edges that interact in the area of ​​the bundle removal notch during removal, the risk of individual bristle filaments being damaged during removal from the material box by becoming trapped between the interacting edges can be reduced. This allows the consequential errors described above to be reduced or even avoided.

[0019] Since the bundle remover, with its two knife edges, moves past the dividing edge of its counterpart at a very short distance for removing bristle bundles from the material box and transporting the removed bristle bundles to a downstream processing step, the knife edges also approach the dividing edge to a very close distance. The previously described rounding allows the bristle filaments to be removed more gently. Particularly when the bristle filaments are in danger of becoming trapped between the dividing edge and one of the knife edges, the rounding of the respective edge can result in the affected bristle filament being pushed comparatively gently either into the bundle removal notch or - just as carefully - transported back into the material box.

[0020] It can be particularly advantageous if at least one of the two rear knife edges, in the direction of transport of the bristle bundles to their discharge position for a downstream processing step, is rounded. However, both knife edges and / or the dividing edge can also be rounded. In this way, bristle bundles can be gently removed from the material box not only during a stroke of the bundle remover toward the discharge position. Gentle removal can also be possible during a return stroke of the bundle remover.

[0021] It is possible for the at least one knife edge and / or the dividing edge to be rounded with a radius transverse to their longitudinal extent. The radius or radii of the at least one knife edge and / or the dividing edge can be between 0.005 millimeters and 0.03 millimeters, particularly preferably between 0.005 millimeters and 0.02 millimeters.

[0022] Since the quality of the interacting surfaces can also be important for the gentle removal of bristle bundles from the material box, it can be advantageous if a surface of at least one knife edge and / or a surface of the dividing edge is / are smoothed. Advantageously, the aforementioned surfaces can have an average roughness value or surface roughness value of Ra < 0.1, or even Ra < 0.05, and particularly preferably Ra < 0.02. In this way, particularly smooth edge surfaces are created, along which the bristle filaments can slide particularly easily toward the bundle removal notch or back into the material box without being damaged, distorted, or kinked.

[0023] In one embodiment of the bundle removal device, a length of at least one knife edge of the bundle removal device is shorter than a height of the bundle removal notch measured transversely to the direction of movement of the bundle remover. In this way, a length over which the bristle filaments can become trapped and damaged between the knife edge and the dividing edge on the counterpart can be reduced. The length of the at least one knife edge can be shorter than a length of bristle filaments to be removed with the bundle removal device.

[0024] It should be noted that this feature can also be combined with the features described above with respect to a bundle removal device according to the invention.

[0025] In order to further reduce the risk of damage to individual bristle filaments when they are removed from the material box using the bundle removal notch, a knife edge bevel and / or a knife edge arc can be formed between a flat side of the bundle remover oriented transversely to the longitudinal axis of the bundle removal notch and the at least one knife edge. This can limit the length of the knife edge. However, it is also possible for at least one knife edge bevel and / or at least one knife edge arc to be formed between each of the two flat sides of the bundle remover oriented transversely to the longitudinal axis of the bundle removal notch and the at least one knife edge.All this results in the at least one knife edge being arranged between at least two knife edge bevels and / or knife edge arcs, whereby a length of the at least one knife edge can be smaller than a height of the bundle removal notch measured transversely to the direction of movement of the bundle remover.

[0026] In this way, the length of the knife edge can also be reduced and made smaller than the height of the bundle removal notch measured transversely to the direction of movement of the bundle remover. Furthermore, the knife edge can be arranged symmetrically between the at least two knife edge chamfers or knife edge arcs.

[0027] The bundle removal notch can have a flattened inlet slope into the bundle removal notch at least adjacent to one of the two knife edges, in particular to the rear knife edge in the transport direction of the braid bundles into their discharge position. In this case, it can be provided that the inlet slope rises starting from the knife edge, i.e., that the inlet slope has an increasing material thickness starting from the knife edge and thus has a smaller thickness adjacent to the knife edge than in a region of the inlet slope facing away from the knife edge.

[0028] It may also be advantageous if at least one notch edge of the bundle removal notch, oriented transversely or at right angles to a longitudinal center axis of the bundle removal notch, is rounded. In this case, the at least one notch edge can be rounded with a notch edge radius, preferably with a notch edge radius with a length between 0.005 millimeters and 0.03 millimeters.

[0029] In one embodiment of the bundle removal device, it is provided that a length of the dividing edge is smaller than a height of the counterpart measured transversely to the direction of movement of the bundle remover and / or smaller than a height of the bundle removal notch measured transversely to the direction of movement of the bundle remover.

[0030] This means that the length of the dividing edge can also be shorter than a length of bristle filaments that can be removed from the bristle supply using the bundle removal device.

[0031] It should be noted that this feature can also be combined with the features described above with regard to the bundle removal devices according to the invention.

[0032] In a further embodiment of the bundle removal device according to the invention, it can further be provided that the counterpart has at least one dividing edge bevel oriented transversely to the longitudinal extent of the dividing edge and / or at least one dividing edge arc oriented transversely to the longitudinal extent of the dividing edge, by which the dividing edge is limited in its length.

[0033] However, it is also possible for the counterpart to have at least two dividing edge chamfers oriented transversely to the longitudinal extent of the dividing edge and / or at least two dividing edge arcs oriented transversely to the longitudinal extent of the dividing edge, between which the dividing edge is arranged. This is such that a length of the dividing edge is smaller than a height of the counterpart measured transversely to the direction of movement of the bundle collector.

[0034] The dividing edge can be connected to an upper side and / or a lower side of the counterpart via the at least one dividing edge chamfer and / or the at least one dividing edge arc.

[0035] In both cases, the length of the dividing edge can be smaller than the height of the counterpart measured transversely to the direction of movement of the bundle collector. These measures also serve to reduce the length of the dividing edge - analogous to the application of knife edge bevels and / or radii and / or knife edge curves to the bundle collector in the area of ​​at least one knife edge. The aim is to keep the length of a clamping area that can form between the dividing edge and the at least one knife edge of the bundle collector as short as possible, thus reducing or even preventing damage to bristle filaments when removing bristle filaments from the material box.

[0036] In this context, it may be advantageous if at least one of the knife edges and / or the dividing edge are oriented perpendicular to a direction of movement of the bundle remover and / or parallel to an orientation of the bristle bundles to be positioned in the bundle removal notch. However, both the at least one knife edge and the dividing edge can also be formed on a portion of a circular arc-shaped edge or be circular in shape overall.

[0037] In principle, at least one edge oriented transversely or perpendicularly to the dividing edge can be rounded. Such rounding can be particularly useful for edges that may come into contact with bristle filaments. It is also possible for all edges of the counterpart to be rounded in this manner. The rounded edges can be rounded with a radius, preferably with a radius length of 0.005 millimeters to 0.03 millimeters.

[0038] In one embodiment of the bundle removal device, it is proposed that the bundle remover has an end face which is oriented transversely or even at right angles to the front side of the bundle remover and which comprises an end face delimited by at least one end bevel and / or by a end radius.

[0039] The at least one end bevel can be aligned at an angle of 20° to 80° to the end face of the bundle collector. The bevel width of the end bevel can be between 0.05 millimeters and 0.4 millimeters.

[0040] It can be advantageous if the chamfer edges of at least one front chamfer are rounded with a radius with a length between 0.005 millimeters and 0.03 millimeters.

[0041] In one embodiment of the bundle removal device, it is proposed that a box side of the counterpart facing the bristle supply and / or a collector side of the counterpart facing the bundle collector has / have at least one side bevel and / or at least one side radius by which a respective side front surface of the box side and / or is delimited.

[0042] The at least one side bevel on the box side can be aligned at an angle of 20° to 80° to a side front surface of the box side adjacent to the side bevel. It is also possible for the at least one side bevel on the receiver side of the counterpart to be aligned at an angle of 20° to 80° to a side front surface of the receiver side adjacent to the side bevel.

[0043] The respective side chamfer can have a chamfer width between 0.05 millimeters and 0.4 millimeters. The chamfer edges of the side chamfer can be rounded with a radius between 0.005 millimeters and 0.03 millimeters.

[0044] Such brush manufacturing machines often use material boxes with two, three, or even more individual bristle magazines, from which the bristle bundles can be removed using the bundle remover and at least one bundle removal notch. This is usually done by gradually moving the individual bristle magazines of the material box into a removal position. For this purpose, the material box can be pivoted about a pivot axis. To enable the material box to pivot about its pivot axis, it can be advantageous if a counterpart side of the material box facing the counterpart and the bundle remover has a correspondingly curved contour, in particular curved along a circular arc, with which it can be pivoted past the counterpart.

[0045] In this context, it may be advantageous if a box side of the counterpart facing the bristle supply is divided into at least a first section and a second section. The first section can be bent along its longitudinal extent by a first radius. The second section can also be bent along its longitudinal extent by a second radius. It is possible for the second radius to be larger than the first radius.

[0046] In another embodiment of a bundle removal device according to the invention, a box side of the counterpart, for example the previously mentioned side facing the bristle supply, can be divided into at least a first section, at one free end of which the dividing edge (17) is arranged, and a second section. The first section can be curved along its longitudinal extent around a first radius, while the second section has a straight, i.e., uncurved, profile.

[0047] To facilitate the manufacture of the counterpart and, in particular, to enable a material-friendly rounding of the dividing edge on the counterpart, it can be advantageous in this context if the first radius is bent in the opposite direction to the second radius—for example, bent away from the material box and the bristle supply. The dividing edge can then be arranged at a free end of the first section of the counterpart.

[0048] In a conventional version of the counterpart, the dividing edge is formed from two tangentially approaching radii, namely a radius facing the material box and a radius facing the bundle pick-up. If the dividing edge were rounded here, the rounding would result in a relatively large loss of material from the counterpart. This means that the dividing edge on such a conventionally manufactured counterpart would recede comparatively far due to the rounding, which would result in a complex adjustment of the geometry of the entire bundle pick-up device.

[0049] The radius with which the first section of the box side is bent, which is negatively aligned compared to the radius of the second section, enables the desired rounding of the dividing edge with minimal material loss. Here, the dividing edge is created from the two converging radii of the first section of the box side of the counterpart and the receiving side of the counterpart. The radii do not converge tangentially, but rather intersect, resulting in more favorable geometric conditions for a rounding of the dividing edge with minimal material loss.

[0050] In order to make the removal of bristle filaments from the material box even more reliable and gentle, at least one surface of the bundle collector can be smoothed.

[0051] Specifically, the following surfaces can be smoothed in this way: a surface of at least one of the knife edge radius, one of the knife edge chamfers, a knife edge arc, a notch edge radius, an end face, an end chamfer, an end radius, and / or a chamfer edge of at least one chamfer. Furthermore, an inner surface of the bundle removal notch can also be smoothed. The respective smoothed surface can have an average roughness value or surface roughness value Ra of less than 0.1, less than 0.05, and particularly preferably less than 0.02. This can also result in more gentle processing of bristle filaments.

[0052] Similarly, the counterpart can also have at least one smoothed surface. Thus, among others, the following surfaces of the counterpart can be smoothed: a surface of a dividing edge radius, a dividing edge chamfer, a dividing edge arc, a side front surface of a box side, a side front surface of a receiving side of the counterpart, a side chamfer, a side radius, and / or at least one chamfer edge of at least one of the chamfers on the counterpart.

[0053] An average roughness value or surface roughness value Ra of the respective smoothed surface can be less than 0.1, preferably less than 0.05, particularly preferably less than 0.02.

[0054] The smoothing or extremely smooth design of surfaces of the bundle picker and / or the counterpart, in particular the previously specifically mentioned surfaces of the bundle picker and / or the counterpart that may come into direct contact with bristle filaments during the removal process, can promote the removal or separation of bristle filaments from the bristle supply in the material box. This is especially true when separating a last bristle filament from the bristle supply and / or when at least one knife edge on the bundle removal notch and / or the dividing edge of the counterpart are rounded.

[0055] On the receiving side, the counterpart can be provided with an inlet bevel into a tool on one side or on both sides in an area which is arranged adjacent to a delivery position of the bristle filaments to a downstream processing step, in particular to a stuffing tool.

[0056] The bundle removal notch of the bundle remover can be an adjustable bundle removal notch. To adjust the bundle removal notch, the bundle removal device can also have an adjustment device with which the notch depth of the bundle removal notch can be changed as needed. This adjustment device can also be used to change the notch geometry of the bundle removal notch and / or to eject a bristle bundle positioned in the bundle removal notch from the bundle removal notch.

[0057] Particularly efficiently and with satisfactory quality, the at least one bundle removal notch and / or the at least one knife edge and / or the dividing edge and / or at least one chamfer on the bundle remover and / or on the bundle removal notch and / or on the counterpart can be produced by HSC milling and / or HSC grinding.

[0058] Smoothed surfaces of the bundle collector and / or the counterpart can be produced by polishing. Furthermore, at least one knife edge radius of the at least one knife edge, a dividing edge radius of the dividing edge, and / or at least one radius on a chamfer edge of at least one chamfer on the bundle collector and / or on the counterpart can also be produced and / or reworked by polishing.

[0059] Possible processes for this include vibratory grinding, flow grinding, plasma polishing, drag grinding, drag finishing, and / or hand polishing and / or electrochemical deburring. It is possible to produce the previously mentioned surfaces, radii, and curves, using just one of the aforementioned processes or using several processes performed consecutively.

[0060] In a particularly advantageous embodiment of the bundle removal device according to the invention, the bundle remover can be a circular arc separator that can pivot or rotate about a pivot axis. It should be noted at this point that circular arc separators can also be referred to as circular arc removers.

[0061] In another variant of the bundle removal device according to the invention, the bundle remover can also be a circular bundle remover disk that can pivot or rotate about a pivot axis. In this case, the bundle remover—regardless of its specific design—can also be provided with several bundle removal notches, possibly with different notch geometries, in order to be able to remove several bundles of bristles from the material box in one stroke.

[0062] In particular when using bundle collectors which are designed as circular arc dividers or as circular arc collectors or as circular bundle collector discs, it can be expedient if a collector side of the counterpart facing the bundle collector is concavely curved by the same radius as a front side of the bundle collector which is convexly curved by a certain radius.

[0063] It is advantageous if the knife edges and / or the dividing edges have a length between 0.4 millimeters and 1.4 millimeters and / or have at least one straight section, oriented for example at right angles to the direction of movement of the bundle collector, with a length between 0.01 millimeters and 0.8 millimeters.

[0064] The aforementioned object is also achieved by a brush manufacturing machine of the type mentioned at the outset, which comprises the means and features of the independent claim directed to the brush manufacturing machine. In particular, the object is achieved in a brush manufacturing machine of the type mentioned at the outset in that the bundle removal device is one according to one of the claims directed to the bundle removal device.

[0065] The object is also achieved by a method for producing a bundle remover, in particular a bundle remover of a bundle remover device according to one of claims 1 to 22, which comprises the means and features of claim 24. In a method for producing a bundle remover, in particular a bundle remover of a bundle remover device according to one of claims 1 to 22, to achieve the object mentioned at the outset it is therefore provided in particular that at least one bundle remover notch and / or at least one knife edge chamfer and / or a knife edge arc and / or an end chamfer and / or an end radius and / or an upper and / or lower side remover chamfer on the bundle remover and / or a notch edge radius of a bundle remover notch and / or chamfer edges of at least one chamfer on the bundle remover and / or an inner surface of the bundle remover notch is / are produced by HSC milling and / or HSC grinding.

[0066] In one embodiment of the method for producing a bundle collector, in particular a bundle collector of a bundle removal device according to one of claims 1 to 22, at least one smoothed surface of the bundle collector is produced and / or reworked by grinding and / or polishing.

[0067] In this case, a surface of at least one knife edge radius, a knife edge chamfer, a knife edge arc, a notch edge radius, an end face, an end chamfer, an end radius, a chamfer edge of at least one chamfer and / or an inner surface of the bundle removal notch can be produced and / or reworked by grinding and / or polishing.

[0068] Furthermore, in this method it can be provided that the production or post-processing of at least one surface and / or the end face of the bundle collector and / or at least one radius on the bundle collector, in particular on a knife edge of at least one bundle collector notch of the bundle collector and / or at least one chamfer on the bundle collector, in particular on a knife edge of a bundle collector notch of the bundle collector and / or an inner surface of at least one bundle collector notch is carried out by vibratory grinding, flow grinding, plasma polishing, drag grinding, drag finishing and / or by hand polishing and / or by electrochemical deburring.

[0069] Wet and / or dry granules, porcelain grinding wheels, plastic grinding wheels, ceramic grinding wheels, stainless steel chips, copper pins, especially those with a diameter of approximately 0.2 millimeters and a length of approximately 1 millimeter, stainless steel grinding wheels, zirconia balls, microfinish grinding wheels, plastic polishing wheels, wet grinding paste, polishing paste, walnut granules, corn granules and / or dry grinding granules can be used as grinding or polishing agents.

[0070] The aforementioned object is also achieved by a method mentioned at the outset for producing a counterpart of a bundle removal device of a bundle removal device according to one of claims 1 to 22, which has the means and features of the independent claim directed to the method for producing a counterpart of a bundle removal device. According to the invention, it is therefore provided that at least one parting edge radius, one parting edge chamfer, one parting edge arc, one side front surface, one side chamfer, one side radius and / or at least one rounded chamfer edge of a chamfer is produced on the counterpart by HSC milling and / or HSC grinding. In one embodiment of the method, it can be provided that at least one smoothed surface of the counterpart is produced and / or reworked by grinding and / or polishing.

[0071] For example, the following surfaces can be produced and / or reworked in this way: The surface of a parting edge radius, a parting edge chamfer, a parting edge arc, a side front surface, a side chamfer, a side radius and / or at least one chamfer edge of a chamfer on the counterpart.

[0072] The production and / or post-processing can be carried out by vibratory grinding, flow grinding, plasma polishing, drag grinding, drag finishing and / or hand polishing and / or electrochemical deburring.

[0073] Wet and / or dry granules, porcelain grinding wheels, plastic grinding wheels, ceramic grinding wheels, stainless steel chips, copper pins, especially those with a diameter of approximately 0.2 millimeters and a length of approximately 1 millimeter, stainless steel grinding wheels, zirconia balls, microfinish grinding wheels, plastic polishing wheels, wet grinding paste, polishing paste, walnut granules, corn granules and / or dry grinding granules can be used as grinding or polishing agents.

[0074] Using vibratory grinding as a manufacturing or post-processing process, high-quality machining results can be reliably achieved within a reasonable amount of time, especially when copper pins are used as grinding and / or polishing agents.

[0075] With drag grinding, multiple workpieces, i.e., multiple bundle collectors and / or counterparts, can be mounted on a carrier and processed simultaneously in a single operation. Among other things, fine-grained walnut granules can be used as a polishing or grinding agent, thus reducing processing time.

[0076] Both the counterpart and the bundle collector of the bundle collector devices described above can be made of hardenable steel, for example, HS steel. The steel can be manufactured as a blank with an allowance on or at the end faces in the soft state. Individual contours, such as holes and fastening and alignment edges, can then be produced. The blank of the bundle collector and / or the counterpart can then be hardened, aligned, and ground to size on its respective end face. This is then usually the semi-finished product. The process steps for manufacturing or completing the bundle collector and / or the counterpart, as discussed in the claims and described above, can then be carried out.

[0077] Exemplary embodiments of the invention are described in more detail below with reference to the figures, which show, in some cases highly schematic representations: Fig. 1 is a perspective view of a brush manufacturing machine according to the invention, with a bundle removal device, which has a bundle remover in the form of a circular arc divider that can be pivoted about a pivot axis, and a stuffing tool, Fig. 2 is a perspective view of a first variant of a bundle removal device according to the invention, wherein it can be seen that a knife edge of the bundle removal notch is reduced in length by two knife edge bevels arranged adjacent to the knife edge and the bundle remover also has an upper and a lower bevel, Fig. 2a the in Figure 2with the circle marked detail in an enlarged view, wherein it can be seen that a dividing edge of the counterpart is reduced in length by applying an upper and a lower dividing edge bevel in accordance with the length of the knife edge, Fig. 3 a further perspective view of another embodiment of the bundle removal device according to the invention, wherein the knife edge of the bundle removal notch is limited by two knife edge arcs or circular arcs arranged adjacent to the knife edge, Fig. 3a the in Figure 3a detail marked with a circle in an enlarged view, in which a dividing edge of a counterpart of this bundle removal device is designed according to the knife edge of the bundle remover, wherein it can be seen that the knife edge and the dividing edge have a straight course oriented at right angles to the direction of movement of the bundle remover, Fig. 4 a further perspective view of a third embodiment of a bundle removal device according to the invention, Fig. 4a the in Figure 4 with the circle marked detail in an enlarged view, where it can be seen that a knife edge arc is connected to an upper and a lower doffer bevel, which ends in the knife edge, Fig. 5 a plan view of a conventional bundle doffer in an adjacent position to a tapered counterpart on which a sharp dividing edge is formed, Fig. 5a the in Figure 5with the circle marked detail in an enlarged view, wherein a bristle filament arranged between a sharp knife edge and a sharp dividing edge can be seen, Fig. 6 a plan view of a bundle collector according to the invention in an adjacent position to a counterpart with a rounded dividing edge, Fig. 6a the in Figure 6 detail marked with a circle in an enlarged view, where a bristle filament can be seen arranged between a rounded knife edge of the bundle collector and a rounded dividing edge of the counterpart, Fig. 7 a plan view of a conventional counterpart with a pointed, i.e. sharply tapered dividing edge at a tip of the counterpart, Fig. 8 a plan view of the in Figure 7shown counterpart after rounding of the dividing edge, wherein it can be clearly seen from a depicted measuring tip that a tip of the counterpart is greatly shortened by the rounding of the dividing edge, Fig. 9 a plan view of a counterpart according to the invention, wherein it can be seen that a box side of the counterpart consists of a first section with a first radius and a second section with a second radius bent opposite to the first radius, Fig. 10 a plan view of the in Figure 9The counterpart shown after rounding the dividing edge, wherein the measuring tip shown there makes it clear that a tip of the counterpart, on which the dividing edge is arranged, is only comparatively slightly shortened by the rounding due to the two different radii of the two sections of the box side of the counterpart, Fig. 11 is a plan view of a bundle collector in the form of a circular arc divider, wherein the bundle collector comprises a bundle removal notch with a smoothed surface having an average surface roughness Ra of approximately 0.4, Fig. 12 to Fig. 14 are three side views of three different bundle collectors, Fig. 12ain Figure 12 detail marked with a circle in an enlarged view, where it can be seen that edges on one end face of the end face of the circular arc are not machined, Fig.13a in Figure 13The detail marked with a circle is shown in an enlarged view, where it can be seen that one end face of the bundle collector is provided with two edge-side chamfers, the end face and the chamfer surfaces of the chamfers being smoothed and having an average surface roughness value of Ra approximately 0.1, Fig.14a, which in Figure 14 detail marked with a circle in an enlarged view, whereby here the end face on the end side of the circular arc is provided with edge-side chamfers, the chamfer edges of which are rounded with a radius of 0.005 millimeters to 0.03 millimeters, whereby a surface roughness of the end face and also of the chamfer surfaces and also of the radii has an average surface roughness value of Ra < 0.05, Fig. 15 a plan view of a counterpart according to the invention, Fig. 16 a first variant of the in Figure 15 shown counterpart in a direction along the Figure 15shown section line cut front view, Fig. 17a second along the in Figure 15 shown section line, cut front view of another variant of a counterpart according to the invention, Fig. 18 a along the in Figure 15 shown section line sectioned front view of a third variant of a counterpart according to the invention, Fig.16a in Figure 16 The detail marked with a circle is enlarged, showing that none of the edges of the counterpart are machined, Fig.17a, which in Figure 17 The detail marked with a circle is shown in an enlarged view, where it can be seen that both a box side and a receiver side of the counterpart are each provided with side chamfers, Fig.18a in Figure 18detail marked with a circle in an enlarged view, wherein it can be seen that a box side and a pickup side of the counterpart are provided with edge-side side chamfers, wherein chamfer edges of the side chamfers are each rounded off with a radius, Fig. 19 a side view of a further counterpart according to the invention, wherein a dividing edge can be seen at a tip of the counterpart, Fig. 20 a side view of a further counterpart according to the invention, wherein a dividing edge can be seen at a tip of the counterpart, Fig. 19a the in Figure 19 detail marked with a circle in an enlarged view, where it can be seen that the dividing edge is limited by two dividing edge chamfers, Fig. 20a in Figure 20Detail marked with a circle in an enlarged view, wherein it can be seen that the dividing edge is delimited by two dividing edge arcs, Fig. 21 a perspective view of a bundle remover known from the prior art in the form of a circular arc divider, Fig. 22 an enlarged view of a bundle removal notch without bevels and without radii, known from the prior art, Fig. 23 to 39 various variants of bundle removers with bundle removal notches, the knife edges of which are delimited in their length by various combinations of knife edge bevels and / or knife edge arcs as well as top and / or bottom bevels covering the bundle removal notch, Fig.40 a perspective view of a bundle collector according to the invention in the form of a circular arc divider with a total of three bundle removal notches of different sizes, the knife edges of which are limited in their length by different knife edge bevels and knife edge arcs, Fig. 41 a perspective view of a bundle collector according to the invention in the form of a circular arc divider with a circular arc notch adjustable in its depth and cross-section and Fig.42 a perspective view of a circular bundle take-off disc provided with a plurality of bundle take-off notches, wherein the left three bundle take-off notches are standard bundle take-off notches, wherein the middle three bundle take-off notches are those with parallel exit, wherein an exit direction is oriented axially, and wherein the right three bundle take-off notches are those with parallel exit, wherein exit directions are oriented parallel to one another, wherein all notches are arranged according to one of the arrangements shown in the . Figures 23 to 39 shown variants can be designed.

[0078] Figure 1 shows a brush manufacturing machine, designated as a whole by 1, with a material box 2 for storing a bristle supply 3 and with a bundle removal device 4 which has a bundle remover 8 for removing bristle bundles from the material box 2.

[0079] The Figure 1The brush manufacturing machine 1 shown also has a stuffing tool 5. The bristle bundles removed from the material box 2 by means of the bundle removal device 4 can be transferred to this tool for stuffing into a brush body 7 held ready on a corresponding holding device 6.

[0080] With the aid of the holding device 6, the brush body 7 can be brought into the position required for stuffing the bristle bundles relative to the stuffing tool 5.

[0081] The bundle removal device 4 comprises a bundle remover 8 which is movable relative to the material box 2 and a counterpart 9 which is fixed relative to the movable bundle remover 8. In Figure 1 On the left side of the material box 2, a material holder 10 can also be seen, which can be designed analogously to the counterpart 9 if required.

[0082] The bundle remover 8 has at least one bundle removal notch 12 on its front side 11, which in the use position faces the bristle supply 3 held in the material box 2. For removing and separating a bristle bundle from the bristle supply 3 and for delivering a received bristle bundle to the brush manufacturing machine 1, the bundle remover 8 with its at least one bundle removal notch 12 can be moved past the material box 2 and the bristle supply 3 located therein at least to a delivery position. The bundle removal notch 12 has two opposing knife edges 14, 15 that delimit a notch opening 13 of the bundle removal notch 12 and are oriented transversely to the direction of movement of the bundle remover 8. The counterpart 9 is provided with a dividing edge 17 facing the bundle remover 8.

[0083] For example, the Figures 6 and 6aAs can be seen, at least one of the two knife edges 14, 15 and the dividing edge 17 are rounded transversely to their longitudinal extent. This is to protect individual bristle filaments 16 when separating the bristle filaments 16 from the bristle supply 3 of loose bristle filaments 16.

[0084] According to Figure 1 the material box 2 comprises three magazines, each containing a supply of bristle filaments 16. By pivoting the material box 2 in the direction of the double arrow about its pivot axis, the individual magazines can be brought into a position relative to the bundle collector 8 required for the removal of bristle filaments 16.

[0085] The Figures 5 and 5a show a bundle collector 8 and a corresponding counterpart 9, as they are known from the prior art. According to Figure 5aIt can be clearly seen that both the knife edge 15 shown there and the dividing edge 17 shown there are pointed, i.e. sharply tapered, as a result of which a bristle filament 16 arranged between these two could be damaged when removed from the material box 2.

[0086] According to the Figures 6 and 6a at least the rear knife edge 15 of the two knife edges 14, 15 in the transport direction of the bristle bundles into the delivery position is rounded.

[0087] The knife edge 15 is provided with a knife edge radius 15a, and the rounded dividing edge 17 is provided with a dividing edge radius 17a and rounded. The knife edge radius 15a and the dividing edge radius 17a are each oriented transversely to the longitudinal extension of the knife edges 14 and 15 and also of the dividing edge 17.

[0088] These radii 15a and 17a, with which the knife edges 14 and / or 15 and the dividing edge 17 are rounded, can have a length between 0.005 millimeters and 0.03 millimeters, particularly preferably between 0.005 millimeters and 0.02 millimeters.

[0089] It is worth mentioning that a surface of the rounded knife edges 14, 15 and a surface of the rounded dividing edge 17 are smoothed.

[0090] The smoothed surfaces of the knife edges 14, 15 and the dividing edge 17 can have an average roughness value or a surface roughness value of Ra < 0.1, preferably of Ra < 0.05, particularly preferably of Ra < 0.02.

[0091] According to the Figures 1 , 40 and 41the bundle collector 8 is a circular arc divider 18 which can be pivoted or rotated about a pivot axis, which can also be referred to as a circular arc collector, or a circular bundle collector disc 19 which can be pivoted or rotated about a pivot axis.

[0092] The Figures 2 to 4a and the Figures 24 to 39 show that a length of at least one of the knife edges 14, 15 is smaller than a maximum height of the bundle removal notch 12 measured transversely to the direction of movement of the bundle remover 8.

[0093] To reduce the length of the knife edges 14, 15, depending on the embodiment of the bundle removal notch 12 according to the invention, a knife edge bevel 21 and / or a knife edge curve 22 can be formed between a flat side 20 of the bundle remover 8 oriented transversely to the longitudinal axis of the bundle removal notch 12 and the respective knife edge 14, 15. By applying such knife edge bevels 21 and / or such knife edge curves 22, the length of the knife edges 14 and / or 15 can be limited, which promotes a more gentle removal of bristle filaments 16 from the bristle supply 3 in the material box 2 of the brush manufacturing machine 1.

[0094] In some embodiments of the bundle removal notch 12 according to the invention, for example Figure 4a , 5a , 35, 36 , 40It is provided that between the two flat sides 20 of the bundle collector 8 oriented transversely to the longitudinal axis of the bundle removal notch 12 and the at least one knife edge 14, 15, at least one knife edge bevel 21 and / or at least one knife edge arc 22 is formed in the form of a comparatively large radius, so that the respective knife edge 14, 15 is arranged between at least two knife edge bevels 21 and / or between at least two knife edge arcs 22. This also reduces the length of the respective knife edge 14, 15 and is then smaller than a maximum height of the bundle removal notch 12 measured transversely to the direction of movement of the bundle remover 8 and also smaller than a length of the bristle filaments 16. Any conceivable combination of such knife edge bevels 21 and knife edge bends 22 is possible, be it only on one side of the respective knife edge 14, 15 or also on both sides of the knife edges 14, 15, as required.

[0095] The Figures 4 and 4a show a further detail of the bundle removal device 4 according to the invention, which enables a gentle removal of bristle filaments 16 from the bristle supply 3. Here, it can be seen that the bundle removal notch 12 has a flattened inlet slope 23 into the bundle removal notch 12, at least adjacent to one of the two knife edges 14, 15.

[0096] According to the embodiments of the bundle collector 8, as shown in the Figures 4 and 4a and also in some of the Figures 23 to 39 As shown, notch edges 24 of the bundle removal notch 12 oriented transversely or at right angles to a longitudinal center axis of the bundle removal notch 12 are also rounded with a notch edge radius 24a, which preferably has a length between 0.005 millimeters and 0.03 millimeters.

[0097] When considering the Figures 2 to 4a and also the Figures 19 to 20aIt is noticeable that a length of the dividing edge 17 is also smaller than a maximum height of the counterpart 9 measured transversely to the movement of the bundle collector 8.

[0098] To achieve this reduction in the length of the dividing edge 17, the counterpart 9 has at least one dividing edge chamfer 25 oriented transversely to the longitudinal extent of the dividing edge 17 or at least one dividing edge arc 26 oriented transversely to the longitudinal extent of the dividing edge 17 in the form of a radius. The length of the dividing edge 17 is then limited by both the dividing edge chamfer 25 and the radius 26. According to Figure 4a The counterpart 9 has two dividing edge chamfers 25 oriented transversely to the longitudinal extent of the dividing edge 17. These are particularly well suited to Figure 4aThe dividing edge 17 is then arranged between the two bevels 25, so that a length of the dividing edge 17 is smaller than the height of the counterpart 9 measured transversely to the direction of movement of the bundle collector 8. If necessary, the bevel edges of the dividing edge bevels 25 can be rounded, in particular with a radius.

[0099] The Figures 3a and 4a show a further variant of the counterpart 9 according to the invention. In this case, it is provided that the counterpart 9 has two dividing edge arcs 26 oriented transversely to the longitudinal extent of the dividing edge 17, between which the dividing edge 17 is arranged, so that the length of the dividing edge 17 is smaller than a maximum height of the counterpart 9 measured transversely to the direction of movement of the bundle remover 8, smaller than a maximum height of the bundle removal notch 12 and smaller than a length of the bristle filaments 16.

[0100] Of course, it is possible to bridge the transition between the dividing edge 17 and a top side 27 and a bottom side 28, between which the dividing edge 17 is arranged, both with such dividing edge arcs 26 and with such dividing edge chamfers 25. Particularly when using dividing edge chamfers 25, it is possible to round the chamfer edges of the dividing edge chamfers 25, in particular to provide them with radii, in order to create a transition that is as smooth and gentle as possible for the bristle filaments 16.

[0101] The Figures 2 to 4aand 19 to 19a show that at least one of the knife edges 14, 15 and the dividing edge 17 are oriented at right angles to a direction of movement of the bundle collector 8. This is also the case if the respective knife edge 14, 15 or the respective dividing edge 17 are delimited on one side or both sides by knife edge chamfers 21 or dividing edge chamfers 25 or knife edge bends 22 or dividing edge bends 26 (compare Figure 2a and Figure 3a as well as Figure 19a and Figure 20a ). The Figures 20 and 20a The dividing edge 17 shown has a straight length of between 0.01 mm and 0.8 millimeters arranged between the two dividing edge arcs 26. This can apply to any conceivable dividing edge 17 within the meaning of the bundle removal device 4 according to the invention.

[0102] An end face 29 aligned transversely to the front side 11 of the bundle collector 8 has an end surface 30 which, depending on the embodiment of the bundle collector 8, is delimited by at least one edge-side end bevel 31.

[0103] The Figures 13 to 14a show bundle collectors 8, whose end faces 30 are each limited by two edge-side end bevels 31.

[0104] The edge-side end chamfers 31 can be aligned at an angle of 20 degrees to 30 degrees to the end face 30 of the bundle collector 8 and have a chamfer width between 0.05 millimeters and 0.4 millimeters.

[0105] According to the embodiment of a bundle collector 8 according to the Figures 14 and 14a Chamfer edges 31a of the end chamfers 31 are in turn rounded with a radius with a length between 0.005 millimeters and 0.03 millimeters.

[0106] In particular, the Figures 17 to 18aillustrate that both a box side 32 of the counterpart 9 facing the bristle supply 3 and a collector side 33 of the counterpart 9 facing the bundle collector 8 have edge-side bevels 41 by which the respective end face 30 of the box side 32 or the collector side 33 is limited.

[0107] As already explained in connection with the previously described embodiments of the bundle collector 8, it is also provided here that the edge-side bevels 41 on the box side 32 of the counterpart 9 are aligned at an angle of 20 degrees to 80 degrees to a side front surface 40 of the box side 32 adjacent to the side bevel 41. On the collector side 33 of the counterpart 9, the edge-side bevels 41 are also aligned at an angle of 20 degrees to 30 degrees to a side front surface 40 of the collector side 33 of the counterpart 9 adjacent to the side bevel 41.

[0108] In the embodiment of the counterpart 9 according to the Figures 18 and 18a It can be seen that both the two side chamfers 41 arranged on the box side 32 and the side chamfers 41 arranged on the pickup side 33 have chamfer edges 41a rounded with a radius. The length of this radius, with which the chamfer edges are rounded, is between 0.005 millimeters and 0.03 millimeters.

[0109] The chamfer width of the side chamfers 41, but also of the front chamfers 31, is between 0.05 millimeters and 0.4 millimeters.

[0110] The Figures 9 and 10show that the box side 32 of the counterpart 9 facing the bristle supply 3 is divided into a first section 34 and a second section 35. The first section 34 is bent along its longitudinal extent by a first radius 34a. The second section 35 is bent along its longitudinal extent by a second radius 35a. The first radius 34a is bent in the opposite direction to the second radius 35a. The dividing edge 17 is formed at a free end 42, which can also be referred to as the tip, of the first section 34 on the counterpart 9. The second radius 35a is noticeably larger than the first radius 34a.

[0111] The Figures 7 and 8show a counterpart 9 previously known from the prior art. In this case, the box side 32 is curved in a first radius and the receiver side 33 in a second radius. The dividing edge 17 of this counterpart 9 is formed from the tangentially approaching radii of the box side 32 and the receiver side 33. If the dividing edge 17 is rounded, a relatively large distance is created from the radius shown in the Figures 7 to 10 shown measuring tip 36. This is due to the extensive material removal that is necessary to round off the dividing edge 17 of this counterpart 9.

[0112] This means that the dividing edge 17 of this counterpart 9 is significantly retracted due to its rounding, thus shortening the free end 42. This is so significant that the entire geometry of the bundle removal device 4 must be adjusted.

[0113] In comparison, it can be seen from the relative position of the rounded dividing edge 17 of the counterpart 9 according to the invention to the measuring tip 36 that rounding the dividing edge 17 is accompanied by only a minimal change in the dimensions of the counterpart 9 and only a minimal shortening of the free end 42 of the counterpart 9 according to the invention, so that a redesign of the bundle removal device 4 by rounding the dividing edge 17 is not necessary.

[0114] Depending on requirements, the surfaces of the bundle collector 8 facing the material box 2 and the surfaces of the counterpart 9 facing the bundle collector 8 can also be smoothed. An average roughness value or surface roughness value Ra of the smoothed surfaces can be less than 0.1, preferably less than 0.05, and particularly preferably less than 0.02. In principle, all surfaces of both the bundle collector 8 and the counterpart can be smoothed in this way.It should also be noted that surfaces of the knife edge radius 15a, knife edge chamfers 21, the dividing edge radius 17a of the dividing edge chamfers 25, the end chamfers 31 and the side chamfers 41, as well as the knife edge arcs 22 and the dividing edge arcs 26 and radii for rounding the chamfer edges of the knife edge chamfers 21, the dividing edge chamfers 25, the end chamfers 31 and the side chamfers 41, but also the top and bottom pickup chamfers 43 on the bundle pickup 8 can be smoothed in this way.

[0115] Figure 41shows a bundle remover 8 of a bundle removal device 4 according to the invention, the bundle removal notch 12 of which is an adjustable bundle removal notch 12. To adjust this bundle removal notch 12, the bundle removal device 4 comprises an adjusting device 37 for adjusting a notch depth and / or a cross-sectional geometry of the bundle removal notch 12, which is arranged on the bundle remover 8. To adjust the notch depth and / or the cross-sectional geometry of the bundle removal notch 12, an adjusting plate 38 can be inserted into the bundle removal notch 12 from behind.

[0116] The Figures 22 to 39 show different embodiments of bundle collectors 8 according to the invention.

[0117] Figure 23 shows a bundle collector 8 with a bundle collector notch 12, the notch edges 24 of which are rounded by means of a notch edge radius 24a.

[0118] Figure 24shows a bundle collector 8 whose two knife edges 14 and 15 are rounded by a knife edge radius 15a. The notch edges 24 of this bundle collector 8 are also rounded by a notch edge radius 24a. The bundle collector notch 12 is covered by at least one upper-side collector phase 43, which leads to a reduction in the edge length of the two knife edges 14 and 15 of this bundle collector 8.

[0119] Figure 25 shows a bundle collector 8 whose rear knife edge 15 is delimited on both sides by two knife edge bevels 21. In this bundle collector 8, too, the bundle removal notch 12 is covered at least on the upper side by a bevel 43.

[0120] The bundle receiver 8 according to Figure 26 differs from the bundle receiver 8 according to Figure 25 through the inlet slope 23, which is arranged adjacent to the rear knife edge 15 of this bundle collector 8.

[0121] The bundle receiver 8 according to Figure 27 has at least one upper-side take-off bevel 43, which covers the bundle take-off notch 12 and thus leads to a reduction in the length of both the knife edge 14 and the rear knife edge 15. In addition, the rear knife edge 15 is limited in its length on both sides by a knife edge arc 22.

[0122] Figure 28 shows a bundle collector 8, which is different from the Figure 27 by the inlet slope 23 arranged adjacent to the rear knife edge 15.

[0123] Figure 29 shows a bundle collector 8 which, in comparison to the bundle collector 8 as shown in Figure 28 is shown, has both notch edges 24 rounded by means of a notch edge radius 24a and a rear knife edge 15 rounded by means of a knife edge radius 15a.

[0124] Figure 30shows another bundle collector 8, which has an upper and a lower collector bevel 43. The lengths of the two knife edges 14 and 15 are limited in length by two knife edge bevels 21 each. In addition, adjacent to both the front knife edge 14 and the rear knife edge 15, inlet bevels 23 are formed.

[0125] Figure 31 shows a bundle collector 8, which has a collector bevel 43 on both the top and bottom sides. Both knife edges 14 and 15 are limited in length by two knife edge radii 22. Adjacent to the knife edge 14 and also adjacent to the knife edge 15, an inlet bevel 23 into the bundle removal notch 12 is formed on this bundle collector 8.

[0126] Figure 32shows a bundle collector 8 that has no bevel at all. The rear knife edge 15 of this bundle collector 8 is limited in length on both sides by two knife edge bevels 21.

[0127] Figure 33 shows a bundle collector 8, which differs from the bundle collector 8 as shown in Figure 32 is shown, by the notch edges 24 rounded by means of a notch edge radius 24a and the rear knife edge 15 rounded by means of a knife edge radius 15a.

[0128] Figure 34 shows another bundle collector 8, which differs from the one in Figure 32 shown bundle collector 8 in that in this case the front knife edge 14 of the two knife edges 14 and 15 is limited in length on both sides by two knife edge bevels 21 each.

[0129] Figure 35 shows a bundle collector 8 which has the same structure as the one in Figure 34The bundle collector 8 shown in FIG. 1 is a perspective view, wherein both the front knife edge 14 and the rear knife edge 15 of the bundle collector 8 are each rounded by a knife edge radius 15a. It is also worth mentioning that the notched edges 24 of this bundle collector 8 are rounded by a notched edge radius 24a.

[0130] Figure 36 shows a bundle collector 8 again without a collector bevel 43, the rear knife edge 15 of which is limited in length on both sides by a knife edge radius 22.

[0131] Figure 37 shows a bundle collector 8 which differs from the bundle collector 8 in that the notch edges 24 are rounded off by means of a notch edge radius 24a and the rear knife edge 15a is rounded off by means of a knife edge radius 15a, which is shown in Figure 36 is shown.

[0132] Figure 38shows a bundle collector 8, the front knife edge 14 and the rear knife edge 15 of which are each limited in length by two knife edge radii 22.

[0133] Figure 39 shows a bundle collector 8, which is distinguished by the rounded notch edges 24 and the rounded rear knife edge 15 from the bundle collector 8 according to Figure 38 differs from, but is otherwise identical to, the latter. The notched edges 24 are rounded by the aforementioned notch edge radius 24a. The knife edges 14 and 15 are each rounded by a knife edge radius 15a.

[0134] The bundle removal notch 12, the knife edges 14 and 15, the dividing edge 17, and also all chamfers 21, 25, 31, and 41 on the bundle remover 8, the bundle removal notch 12, and on the counterpart 9 can be produced by HSC milling and / or HSC grinding. The smoothed surfaces of the bundle remover 8, the counterpart 9, and also the radii for rounding off the at least one knife edge 14, 15 and the dividing edge 17 are produced by polishing or at least reworked. This can be done, in particular, by vibratory grinding, flow grinding, plasma polishing, drag grinding, drag finishing, and / or hand polishing and / or electrochemical deburring.

[0135] The radii for rounding off existing chamfer edges, in particular the chamfer edges 31a, 41a, can also be produced or at least reworked using such polishing processes if they are comparatively small.

[0136] Also the front surface 30 on the bundle collector 8 and the side front surfaces 40 on the box side 32 and the collector side 33 of the counterpart 9, the chamfer surfaces of the front chamfers 31 and the side chamfers 41 as well as surfaces of the chamfer edges 31a and 41a rounded by radii (compare Figures 12a, 12a, 14a ) and an inner surface 39 of the bundle removal notch 12 can be manufactured in this way.

[0137] The chamfer surfaces of the end chamfers 31 and the end surfaces 30 of the bundle collector 8 according to Figure 13a have an average surface roughness value Ra of 0.1.

[0138] The chamfer surfaces of the end chamfers 31, the surfaces of the chamfer edges 31a rounded by radii and the end surfaces 30 of the bundle collector 8 according to Figure 14a have an average surface roughness value Ra of 0.05.

[0139] The chamfer surfaces of the side chamfers 41 and the side front surfaces 40 of the counterpart 9 according to Figure 17ahave an average surface roughness value Ra of 0.1.

[0140] The chamfer surfaces of the side chamfers 41, the surfaces of the rounded chamfer edges 41a and the side front surfaces 40 of the counterpart 9 according to Figure 18a have an average surface roughness value Ra of 0.05.

[0141] In principle, depending on the requirements, every bevel and every surface, in particular those that can come into contact with bristle filaments 16, of the bundle collector 8 and the counterpart 9 can be smoothed.

[0142] At least the surface of the front side 11 of the bundle collector 8, the surfaces of the chamfers 21 and 25 as well as the surfaces of the radii 22 and 26 on the bundle collector 8 as well as the rounded chamfer edges by which the chamfers 21 and 25 may be limited are produced and / or reworked by grinding and / or polishing.

[0143] The production or post-processing of at least these smoothed surfaces of the bundle collector 8 and also of the counterpart can be carried out specifically by vibratory grinding, flow grinding, plasma polishing, drag grinding, drag finishing and / or hand polishing and / or electrochemical deburring.

[0144] Wet and / or dry granules, porcelain grinding wheels, plastic grinding wheels, ceramic grinding wheels, stainless steel chips, copper pins, stainless steel grinding wheels, zirconia balls, microfinish grinding wheels, plastic polishing wheels, wet grinding paste, polishing paste, walnut granules, corn granules and / or dry grinding granules are used as grinding or polishing agents.

[0145] At the lower end of the counterpart 9 shown in Fig. 44, an inlet bevel 44 for the delivery of the bristle filaments 16 to the stuffing tool 5 can be seen.

[0146] To improve the field of brush production, the bundle removal device 4 is proposed, among other things. This device comprises the bundle remover 8, which is movable relative to the material box 2 of the brush manufacturing machine 1 and has at least one bundle removal notch 12 on its front side 11, which, in the use position, faces the bristle supply 3 held in the material box 2. The bundle removal notch 12 comprises two opposing knife edges 14, 15, which delimit the notch opening 13 of the bundle removal notch 12 and are oriented transversely to the direction of movement of the bundle remover 8. Also part of the bundle removal device 4 is the counterpart 9, which is provided with the dividing edge 17 facing the bundle remover 8. In order to enable the most gentle removal of bristle filaments 16 from the bristle supply 4, at least one of the two knife edges 14, 15 and / or the dividing edge 17 is rounded. List of reference symbols

[0147] 1 Brush manufacturing machine 2 Material box 3 Bristle supply 4 Bundle removal device 5 Stuffing tool 6 Holding device 7 Brush body 8 Bundle remover 9 Counterpiece 10 Material holder 11 Front of 8 12 Bundle removal notch 13 Notch opening 14 Knife edge 15 Rear knife edge 15a Knife edge radius 16 Bristle filament 17 Parting edge 17a Parting edge radius 18 Circular arc divider 19 Bundle removal disc 20 Flat side of 8 21 Knife edge bevel 22 Knife edge arc 23 Lead-in bevel 24 Notch edge 24a Notch edge radius 25 Parting edge bevel 26 Parting edge arc 27 Top of 9 28 Bottom of 9 29End face 30End surface 31End chamfer on 30 31aChamfer edge on 31 32Box side of 9 33Doffer side of 9 34First section of 32 34aFirst radius 35Second section of 32 35aSecond radius 36Measuring tip 37Adjustment device 38Adjustment plate 39Inner surface of 12 40Side front surface on 32, 33 41Side chamfer on 32, 33 41aChamfer edge on 41 42Free end of 34 43Doffer chamfer 44Inlet chamfer on 9

Claims

1. Tuft-picking device (4) for a brush-making machine (1), wherein the tuft-picking device (4) comprises a tuft picker (8) that can be moved relative to a material box (2) and a fixed counterpart (9) relative to the movable tuft picker (8), wherein the tuft picker (8) has, on its front side (11) that faces a bristle supply (3) provided in the material box (2), at least one tuft-picking notch (12) and, for the purpose of removing a bristle tuft from the bristle supply (3) and for the purpose of delivering a bristle tuft that has been picked up to the brush-making machine (1), is movable with the at least one tuft-picking notch (12) past the bristle supply (3) and past the counterpiece (9) at least as far as a delivery position, wherein the tuft-picking notch (12) has two mutually opposing knife edges (14, 15) which delimit a notch opening (13) of the tuft-picking notch (12) and are oriented transversely to the direction of movement of the tuft picker (12), and the counterpiece (9) has a dividing edge (17) facing the tuft picker (8), characterized in that at least one of the two knife edges (14, 15) and / or the dividing edge (17) is / are rounded transversely with respect to their longitudinal extension.

2. Tuft-picking device (4) according to claim 1, characterized in that at least one knife edge (15) of the two knife edges (14, 15) which is rear in the transport direction of the bristle tufts into the delivery position is rounded.

3. Tuft-picking device (4) according to claim 1 or 2, characterized in that at least one knife edge (14, 15) and / or the dividing edge (17) are rounded with a knife edge radius (15a) and / or with a dividing-edge radius (17a), in particular wherein the knife edge radius (15a) and / or the dividing-edge radius (17a) have a length between 0.005 mm and 0.03 mm, in particular between 0.005 mm and 0.02 mm.

4. Tuft-picking device (4) according to one of claims 1 to 3, characterized in that a surface of the at least one knife edge (14, 15) and / or a surface of the dividing edge (17) is smoothed, in particular has a mean roughness value or surface roughness value of Ra less than 0.1, preferably of Ra less than 0.05, particularly preferably of Ra less than 0.02.

5. Tuft-picking device (4) according to one of claims 1 to 4, characterized in that a length of at least one knife edge (14, 15) is smaller than a height of the tuft-picking notch (12) as measured transversely with respect to the movement direction of the tuft picker (8).

6. Tuft-picking device (4) according to claim 5, characterized in that a knife-edge chamfer (21) and / or a knife-edge arc (22) is / are formed between a flat side (20) of the tuft picker (8), which flat side is oriented transversely with respect to the longitudinal axis of the tuft-picking notch (12), and the at least one knife edge (14, 15), by means of which a length of the knife edge (14, 15) is limited, so that a length of the at least one knife edge (14, 15) is smaller than a height of the tuft-picking notch (12) as measured transversely to the direction of movement of the tuft picker (8), or in that between each of the two flat sides (20) of the tuft picker (8) and of the at least one knife edge (14, 15), which sides are oriented transversely with respect to the longitudinal axis of the tuft-picking notch (12), at least one knife-edge chamber (21) and / or at least one knife-edge arc (22) is formed in each case, so that the at least one knife edge (14, 15) is arranged between at least two knife-edge chamfers (21) and / or knife-edge arcs (22), whereby a length of the at least one knife edge (14, 15) is smaller than a height of the tuft-picking notch (12), as measured transversely to the direction of movement of the tuft-picking device (8).

7. Tuft-picking device (4) according to one of claims 1 to 6, characterized in that the tuft-picking notch (12) has, at least adjacent to one of the two knife edges (14, 15), a flattened entry slope (23) into the tuft-picking notch (12).

8. Tuft-picking device (4) according to one of claims 1 to 7, characterized in that at least one notched edge (24) of the tuft-picking notch (12) oriented transversely or at right angles to a longitudinal center axis of the tuft-picking notch (12), in particular with a notch-edge radius (24a), preferably with a notch-edge radius (24a) with a length between 0.005 mm and 0.03 mm, is rounded.

9. Tuft-picking device (4) according to one of claims 1 to 8, characterized in that a length of the dividing edge (17) is smaller than a height of the counterpart (9) as measured transversely with respect to the direction of movement of the tuft-picking device (8) and / or smaller than a height of the tuft-picking notch (12) as measured transversely to the direction of movement of the tuft picker (8).

10. Tuft-picking device (4) according to claim 9, characterized in that the counterpart (9) has at least one dividing-edge chamfer (25) oriented transversely to the longitudinal extension of the dividing edge (17) and / or at least one dividing-edge arc (26) oriented transversely to the longitudinal extension of the dividing edge (17), by means of which the dividing edge (17) is limited in its length, or in that the counterpart (9) has at least two dividing-edge chamfers (25) oriented transversely to the longitudinal extension of the dividing edge (17) and / or at least two dividing-edge arcs (26) oriented transversely to the longitudinal extension of the dividing edge (17), between which the dividing edge (17) is arranged, so that a length of the dividing edge (17) is smaller than a height of the counterpart (9) as measured transversely to the direction of movement of the tuft-picking device (8), and / or smaller than a height of the tuft-picking notch (12) as measured transversely to the direction of movement of the tuft-picking device (8).

11. Tuft-picking device (4) according to one of claims 1 to 10, characterized in that at least one of the knife edges (14, 15) and / or the dividing edge (17) is oriented at right angles to a direction of movement of the tuft picker (8) and / or in that at least one of the knife edges (14, 15) and / or the dividing edge (17) is / are formed on a section of an arcuate edge or is / are arcuate overall.

12. Tuft-picking device (4) according to one of claims 1 to 11, characterized in that the tuft picker (8) has an end side (29) which is oriented transversely with respect to the front of the tuft picker (8) and which comprises an end face (30) bounded by at least one end chamfer (31) and / or by an end radius.

13. Tuft-picking device (4) according to claim 12, characterized in that the at least one end chamfer (31) is oriented at an angle of 20° to 80° to the end face (30) of the tuft picker (8) and / or has a chamfer width between 0.05 mm and 0.4 mm and / or wherein chamfer edges (31a) of the at least one end chamfer (31), in particular, are rounded with a radius having a length between 0.005 mm and 0.03 mm.

14. Tuft-picking device (4) according to one of claims 1 to 13, characterized in that a box side (32) of the counterpiece (9) facing the bristle supply (3) and / or a picker side (33) of the counterpiece (9) facing the tuft picker (8) has / have at least one side chamfer (41) and / or at least one side radius, by means of which a respective side front face (40) of the box side (32) and / or of the picker side (33) is delimited.

15. Tuft-picking device (4) according to claim 14, characterized in that the at least one side chamfer (41) on the box side (32) is aligned at an angle of 20° to 80° to a side front face (40), adjacent to the side chamfer (41), of the box side (32) and / or in that the at least one side chamfer (42) on the picker side (33) is aligned at an angle of 20° to 80° to a side front face (40), adjacent to the side chamfer (41), of the picker side (33), and / or in that the side chamfer (41) has a chamfer width between 0.05 mm and 0.4 mm and / or wherein chamfer edges (41a) of the side chamfer (41) are rounded, in particular with a radius having a length between 0.005 mm and 0.03 mm.

16. Tuft-picking device (4) according to one of claims 1 to 15, characterized in that one or the box side (32) of the counterpart (9) facing the bristle supply (3) is subdivided at least into a first section (34), at one free end (42) of which the dividing edge (17) is arranged, and into a second section (35), wherein the first section (34) is bent along its longitudinal extension by a first radius (34a) and the second section (35) is bent along its longitudinal extension by a second radius (35a), wherein the first radius (3 4a) is bent in the opposite direction to the second radius (35a), and / or wherein the second radius (35a) is greater than the first radius (34a), or in that one or the box side (32) of the counterpart (9) facing the bristle supply (3) is divided at least into a first section (34), at whose one free end (42) the dividing edge (17) is arranged, and into a second section (35), wherein the first section (34) is bent along its longitudinal extension by a first radius (34a) and the second section (35) has a straight course.

17. Tuft-picking device (4) according to one of claims 1 to 16, characterized in that at least one surface of the tuft-picker (8) is smoothed, in particular in that a surface of at least one or the knife-edge radius (15a), one or the knife-edge chamfer (21), one or the knife-edge curve (22), one or the notch-edge radius (24a), one or the end face (30), one or the end chamfer (31), one or the end radius, one or the chamfer edges (31a) of at least one chamfer (21, 31) and / or an inner surface (39) of the tuft-picking notch (12) is / are smoothed, in particular wherein an average roughness value or surface roughness value Ra of the smoothed surface is less than 0.1, preferably less than 0.05, more preferably less than 0.02.

18. Tuft picking device (4) according to one of claims 1 to 17, characterized in that at least one surface of the counterpart (9) is smoothed, in particular in that a surface of at least one or the dividing-edge radius (17a), one or the dividing-edge chamfer (25), one or the dividing-edge edge arc (26), one or the side front face (40) of a box side (32) of the counterpiece (9), one or the side front face (40) of a picker side (32) of the counterpiece (9), one or the side chamfer (41), one or the side radius and / or one or the chamfer edges (41a) of at least one of the chamfers (25, 41) on the counterpart (9) is smoothed, in particular wherein an average roughness value or surface roughness value Ra of the smoothed surface is less than 0.1, preferably less than 0.05, and more preferably less than 0.02.

19. Tuft-picking device (4) according to one of claims 1 to 18, characterized in that the tuft-picking notch (12) is an adjustable tuft-picking notch (12) and in that the tuft-picking device (4) comprises an adjusting device (37) for adjusting a notch depth and / or a cross-sectional geometry of the tuft-picking notch (12).

20. Tuft-picking device (4) according to one of claims 1 to 19, characterized in that the at least one tuft-picking notch (12) and / or the at least one knife edge (14, 15) and / or the dividing edge (17) and / at least one chamfer (21, 31, 43) on the tuft picker (8) and / or on the tuft-picking notch (12) and / or on the counterpiece (9) is / are produced by HSC milling and / or HSC grinding.

21. Tuft-picking device (4) according to one of claims 1 to 20, characterized in that smoothed surfaces of the tuft picker (8) and / or of the counterpiece (9) are produced and / or reworked by polishing, in particular by slide grinding, flow grinding, plasma polishing, drag grinding, drag finishing and / or hand polishing and / or electrochemical deburring.

22. Tuft-picking device (4) according to one of claims 1 to 21, characterized in that the tuft picker (8) is an arc divider (18) that can be pivoted or rotated about a pivot axis or is a circular tuft-picking disk (19) that can be pivoted or rotated about a pivot axis.

23. Brush-making machine (1) having a material box (2) for storing a bristle supply (3) and having a tuft-picking device (4) which has at least one tuft picker (8) for removing bristle tufts from the material box (2), characterized in that the tuft-picking device (4) is one according to one of the preceding claims.

24. Method for producing a tuft picker, in particular a tuft picker (8) of a tuft-picking device (4) according to one of the claims 1 to 22, characterized in that at least one tuft-picking notch (12) and / or at least one knife-edge chamfer (21) and / or one knife-edge arc (22) and / or a front chamfer (31) and / or a front radius and / or a top-side and / or bottom-side picker chamfer (43) on the tuft picker (8) and / or a notch-edge radius (24a) of a tuft-picking notch (12) and / or chamfer edges (31a) of at least one chamfer (21, 31, 43) on the tuft picker (8) and / or an inner surface (39) of the tuft-picking notch (12) is produced by HSC milling and / or HSC grinding.

25. Method according to claim 24, characterized in that at least one smoothed surface of the tuft picker (8) is produced and / or reworked by grinding and / or polishing.

26. Method according to claim 25, characterized in that a surface of at least one or the knife edge radius (15a), one or the knife edge chamfer (21), one or the knife edge arc (22), one or the notch-edge radius (24a), one or the end face (30), one or the end face chamfer (31), one or the end face radius, one or the chamfer edge (31a) of at least one chamfer and / or one inner surface (39) of the tuft-picking notch (12) is / are produced and / or reworked by grinding and / or polishing.

27. Method according to claim 25 or 26, characterized in that the production or finishing is carried out by slide grinding, flow grinding, plasma polishing, drag grinding, drag finishing and / or by hand polishing and / or electrochemical deburring.

28. Method for producing a counterpart (9) of a tuft-picking device (4) of a tuft-picking device (4) according to one of claims 1 to 22, characterized in that at least one dividing-edge radius (17a), one dividing-edge chamfer (25), one dividing-edge arc (26), one side front face (40), one side chamfer (41), one side radius and / or at least one rounded chamfer edge (41a) of a chamfer on the counterpiece (9) is produced by HSC milling and / or HSC grinding.

29. Method according to claim 28, characterized in that at least one smoothed surface of the counterpart (9) is produced and / or finished by grinding and / or polishing.

30. Method according to claim 29, characterized in that a surface of a dividing-edge radius (17a), a dividing-edge chamfer (25), a dividing-edge arc (26), a side front face (40), a side chamfer (41), a side radius and / or at least one chamfer edge (41a) of a chamfer on the counterpart (9) is / are produced and / or reworked by grinding and / or polishing.

31. Method according to one of claims 29 or 30, characterized in that the production and / or finishing is carried out by slide grinding, flow grinding, plasma polishing, drag grinding, drag finishing and / or by hand polishing and / or by electrochemical deburring.

32. Method according to one of claims 24 to 31, characterized in that the abrasive or polishing agent used is wet and / or dry granules, porcelain abrasive bodies, plastic abrasive bodies, ceramic abrasive bodies, inox chips, copper pins, stainless steel abrasive bodies, zirconium balls, microfinish abrasive bodies, plastic polishing bodies, wet grinding paste, polishing paste, walnut shell granules, corn granules and / or dry abrasive granules.