Bristle goods manufacturing machine

Abstract

The invention relates, inter alia, to a bristle product manufacturing machine (1) with a suction device (2) for suctioning transport holders (3) for bristle filaments (4) and / or bristle products (21), wherein the suction device (2) comprises a suction housing (5) in which a dirt sink (6) is formed.

Description

This invention relates to bristleware manufacturing machines. Bristle product manufacturing machines are used for manufacturing bristle products, i.e. for manufacturing brushes, brooms or even brushes, for example.In the manufacture of bristle goods, bristle filaments are attached to bristle carriers to form a bristle set of the bristle goods.The bristle filaments can be fastened in different ways. For example, it is known to fasten bristle filaments by means of anchors in receiving holes of a bristle carrier. The so-called anchorless attachment of bristle filaments is also used. In this case, bristle filaments for producing a bristle product are connected to a bristle carrier, for example, by means of a thermal joining method.Regardless of the type of attachment, bristle filaments must be processed and processed to produce bristled goods. In a highly automated production process, the bristle filaments are transported through a bristle product production machine in order to be processed and processed at different stations of the bristle product production machine.The bristle filaments and also the bristle goods themselves are transported through the bristle goods production machine by means of transport holders which can be designed, for example, in the form of plates and are then also referred to as transport plates.The cleanliness of the transport holders can significantly affect the quality of the bristle goods produced.For example, bristle filaments remaining in or on the transport holders can impair the production of bristle goods and increase the reject rate in the production of bristle goods.DE 10 2022 105 091 B4 discloses a device for grinding bristle filaments, wherein the device comprises a motor-driven grinding surface carrier with a grinding surface and a dust suction device assigned to the grinding surface, wherein the dust suction device (5) has a suction housing and a connection for connection to a vacuum source and a suction gap is formed between the grinding surface and the suction housing and wherein the device comprises at least one means for supporting a suction effect of the dust suction device.DE 10 2016 012 715 A1 discloses an apparatus for cleaning a brush, which is configured to carry out a method for cleaning a brush. The method comprises the following steps: generating a laminar fluid flow between at least one pressure source and at least one pressure sink, deflecting free bristle ends of bristles of a bristle field of a brush arranged between the at least one pressure source and the at least one pressure sink counter to the flow direction of the fluid flow, releasing the deflected bristle ends, as a result of which these move back into their initial position in a jerklike manner on account of an elasticity of the bristles and particles adhering to the bristles are detached, and discharging the detached particles in the direction of the at least one pressure sink by means of the fluid flow.It is an object of the invention to provide a bristle product production machine which is distinguished by improved service properties and a high quality and economic efficiency in the production of bristle products.To achieve the object, a bristle product production machine is proposed with the features of the first independent claim directed to such a bristle product production machine. In particular, in order to achieve the object, a bristle product production machine is thus proposed, which has a suction device for suctioning transport holders for bristle filaments, wherein the suction device comprises a suction housing in which a dirt sink is formed.The dirt sink in the suction housing of the suction device prevents dirt already sucked off the transport holders from reaching back into the region of the transport holders. Dirt deposited in the dirt sink can thus be caught there, which improves the efficiency of the suction device and facilitates the production of bristle goods of particularly high quality.The dirt sink can be formed in the current path between a suction opening and a suction connection opening of the suction housing. The suction opening can be that part of the suction housing at which the transport holders are presented for suction.The suction housing can be connected via the suction connection opening to a vacuum source in order to generate a trigger suitable for suctioning transport holdersThe suction device can have a drawer which is arranged in the dirt sink in its dirt trapping position and can be removed from the dirt trapping position within the suction housing. Suctioned-off dirt that has accumulated in the drawer can then be removed from the suction housing particularly easily from time to time by removing the drawer.It is advantageous if the suction housing has an inner contour which is inclined in the direction of the current path through the suction housing towards the dirt sink. Dirt depositing on the inner contour can then be conducted in the direction of the dirt sink by the inclination of the inner contour. The dirt sink can be arranged at a low point of the housing.The inclination of the inner contour of the suction housing in the direction of the dirt sink can additionally prevent suctioned dirt particles from getting out of the dirt sink back in the direction of the suction opening of the suction housing and thus out of the suction housing due to gravity.In one embodiment of the suction housing, the suction housing has a contour maximum on its inner contour between the suction opening and the dirt sink. In this case, the inner contour can be inclined from the contour maximum in one direction to the suction opening and in another direction to the dirt sink. This contour maximum also effectively prevents dirt located in the dirt sink from reaching back into a working region of the bristle product manufacturing machine or even onto transport holders located in the region of the suction opening of the suction housing.In one embodiment of the bristle product production machine, the suction opening of the suction housing is oriented downwards in the direction of gravity. In this way, transport holders to be suctioned off can be moved from below to the suction opening and can be suctioned off there with the aid of the suction device.The transport holders can be plate-shaped and / or have transport receptacles, in particular transport receptacles formed in the form of through holes, for bristle filaments and / or for bristle bundles composed of bristle filaments. Furthermore, the transport holders can be part of the bristle product production machine. The transport holders can be slides or carriages which can be moved in a rail-guided manner through the transport machine. The transport holders can be configured for receiving and transporting finished bristle goods, in particular finished brushes, brooms and / or brushes.In this context, it may be advantageous if the transport holders are held on the suction housing to close as tightly as possible to the suction opening for suction. In this way, it is ensured that an air flow generated by the extraction of the suction device is established through the transport receptacles of the transport holders, which are preferably designed as through openings. This promotes the possible residue-free extraction of the transport holders with the aid of the extraction device of the bristle product production machine. In this context, it may be advantageous if the suction opening of the suction housing has a preferably uninterrupted edge, against which a transport holder to be suctioned off can be placed in as close a manner as possible.In one embodiment of the bristle product production machine, a normal to the suction opening and a normal to the suction connection opening of the suction housing can be aligned transversely or at right angles to one another.This orientation of the suction opening relative to the suction connection opening thus brings about a deflection of an air flow guided through the suction housing, which can promote a deposition of dirt particles in the dirt sink within the suction housing, provided that the dirt particles are not removed directly from the suction housing via the suction connection opening and are fed to a separator.The suction device can have a handling device which is configured to move transport holders in front of the suction opening of the suction housing for suction into a suction position. In this embodiment of the bristle product production machine, the suction housing can thus be a stationary suction housing. In particular, when the transport holders are moved, for example, on transport carriages or transport carriages through the bristle-manufacturing machine in order to feed the transport holders to different stations of the bristle-manufacturing machine, it is then possible to integrate the suction device in a suction station of the bristle-manufacturing machine into a row of other stations of the bristle-manufacturing machine.It is also possible to move the suction housing of the suction device into a suction position in order to then carry out a suction extraction of the transport holders there.In one embodiment of the bristle product production machine, the suction device has a, preferably mechanical, cleaning element, for example a cleaning slide. The cleaning element can be used for cleaning a side of a transport holder located at the suction opening in the suction position facing away from the suction opening and for this purpose can be moved from an initial position into a cleaning position.In cooperation with the suction, the preferably mechanical cleaning element can then be used to loosen contaminants adhering to a side of the transport holders facing away from the suction opening and to supply them to the suction stream which is generated with the suction device.The suction position can be arranged between the suction opening and the cleaning position of the cleaning element. In this way, the transport holders are then arranged in the suction position between the suction opening on the one hand and the cleaning element located in the cleaning position on the other hand. Thus, two different sides of the transport holder can be reliably cleaned.The suction device can comprise a vacuum source which is connected to the suction housing, in particular via the suction connection opening. With the aid of the vacuum source, the draw-off and suction flow required for suctioning the transport holders can then be generated.The bristle product production machine can have a removal station for removing finished bristle products from the transport holders.The bristle product production machine can have a sensor, in particular a reflector light barrier, which is / are configured and provided to check the transport holders for bristle products remaining on the transport holders after the removal of the bristle products. If a bristle product can still be detected on a transport holder with the sensor after the removal of the bristle products, this indicates a malfunction of the bristle product production machine and the bristle product production machine can preferably be automatically stopped.The bristle product production machine can have, in particular as part of the removal station, a product deposit on which finished bristle products can be deposited. This product deposit can be arranged upstream of the aforementioned suction device in the transport direction of the transport holders through the bristle product production machine.In this way, it is possible to remove the finished bristle goods from the transport holders and deposit them on the product deposit area.To achieve the object, a bristle product production machine with a filament sensor for detecting bristle filaments remaining on transport holders is also proposed. In this case, the filament sensor can be arranged upstream of the suction device and / or downstream of the aforementioned product deposit. For example, an optical sensor, preferably an optical line sensor and / or a one-way light barrier and / or a reflector light barrier can be used as the filament sensor. Preferably, a one-way laser light barrier is used as the one-way light barrier.A single-use laser light barrier is characterized by a finely focused laser light spot which, due to its sharp contour, enables an accurate switching behavior of the single-use laser light barrier. By means of a one-way laser light barrier, it is thus also possible to reliably detect filigrane structures, such as bristle filaments, for example.To achieve the object, a bristle product production machine is also proposed which combines the features of the two independent claims with one another.The filament sensor, in particular if it is designed as a line sensor, can be oriented with its longitudinal extension transversely to a transport direction in which the transport holders pass the filament sensor on their way to the suction device. Furthermore, a longitudinal extent of the sensor, which is preferably designed as a line sensor, can be greater than a dimension of the transport holders that can be measured transversely or at right angles to the transport direction of the transport holders. In this way, it is possible to check a transport holder, which is moved past the filament sensor in order to feed the transport holder to the suction device, for remaining bristle filaments both on the top side and on the bottom side.The result of the bristle filaments remaining on transport holders with the filament sensor can be used to draw conclusions as to the quality of the bristle goods produced which were previously arranged on the transport holder. The detection of bristle filaments on the transport holder may indicate missing bristle filaments on the finished bristle goods. Thus, without direct checking of the bristle goods, the bristle goods can be classified as defective even with corresponding detection of bristle filaments remaining on a transport holder and separated out as waste.In this context, it may be advantageous if the bristle product production machine has a reject region for defective bristle products. Defective bristle goods can then be separated out of the production process as bad parts in this waste region.The product depositor can be a conveyor belt movable in two opposite directions. In this way, it is possible to transport bristle goods deposited on the product deposit in one direction as well as in the other. In this context, it may be advantageous if the reject region is arranged on one side of the product deposit designed as a movable conveyor belt. Defective bristle goods can thus be separated out into the reject region if required by appropriate control and movement of the conveyor belt.The bristle product production machine can be configured, in particular by a control unit, to separate out the defective bristle product upon detection of a defective bristle product. This can be done by appropriate control of the conveyor belt. The defective bristle material can be separated from the conveyor belt into the aforementioned reject region.In this context, it may be advantageous if the control unit is connected to the aforementioned filament sensor for detecting bristle filaments remaining on transport holders in such a way that a corresponding sensor signal, which points to a remaining bristle filament on a transport holder, is used to carry out the selection of the bristle goods then classified as defective, in particular by corresponding actuation of the conveyor belt. Thus, the bristle goods previously removed from the transport holder checked by means of the sensor and deposited on the conveyor belt can then be classified as defective and separated out into the waste region of the bristle goods production machine.It is of course also possible to separate defective bristle goods by a gripper which then removes the bristle goods checked as defective, for example from the product deposit or directly from the transport holders and preferably removes them into the reject region.The bristle product production machine can further comprise a sensor, in particular a camera, which is / is configured for, preferably optical, quality control of finished bristle products.To achieve the object, the use of a filament sensor, in particular a line sensor and / or a one-way light barrier, preferably a one-way laser light barrier, and / or a reflector light barrier, for the indirect testing of finished bristle goods is also proposed, wherein transport holders are tested for adhering bristle filaments with the filament sensor after the removal of bristle goods, and the bristle goods removed from the transport holders are classified as defective when bristle filaments are detected at the transport holders, in particular when at least one bristle filament is detected at a transport holder. Subsequently, the bristle goods classified as defective can be separated out as waste.A single-use laser light barrier is characterized by a finely focused laser light spot which, due to its sharp contour, enables an accurate switching behavior of the single-use laser light barrier. Using a one-way laser light barrier, it is also possible to reliably detect filigrane structures, such as bristle filaments, for example.The invention is described in more detail below with reference to an exemplary embodiment, but is not limited to this exemplary embodiment. Further exemplary embodiments result from a combination of the features of individual claims or of a plurality of claims with one another and / or by a combination of individual features or of a plurality of features of the exemplary embodiment. The following are shown: FIG. 1 : a perspective illustration of a bristle product production machine with a suction device for transport holders, which is arranged downstream of a removal station of the bristle product production machine in the transport direction of the transport holders, FIG. 2 : the bristle product manufacturing machine shown in FIG. 1 with a transport holder located in the suction position at a suction opening of a suction housing of the suction device, FIG. 3 : the bristle product manufacturing machine shown in FIG. 2 with a partially cut suction housing for illustrating a dirt sink within the suction housing, FIG. 4 : the bristle product manufacturing machine shown in the preceding figures after the suction of the transport holder, FIG. 5 : shows the bristle goods production machine shown in the preceding figures with a drawer pulled out of its dirt trapping position in the dirt sink of the suction housing, and FIG. 6 : shows the bristle product production machine shown in the preceding figures with a transport holder on its path to the suction device, wherein the transport holder is arranged in the detection region of a sensor configured as a line sensor for detecting bristle filaments remaining on the transport holder.The figures show at least parts of a bristle product manufacturing machine designated as a whole 1. The bristle product production machine 1 comprises a suction device 2 for suctioning transport holders 3 for bristle filaments 4. the suction device 2 comprises a suction housing 5, in which a dirt sink 6 is formed. The dirt sink 6 within the suction housing 5 can be seen easily in particular in the partially cut-away illustration of the suction housing 5 according to FIG. 3.The dirt sink 6 is arranged in the current path between a suction opening 7 and a suction connection opening 8 of the suction housing 5. The suction opening 7 is the part of the suction housing 5 on which the transport holder 3 can be held for suction. The suction housing 5 has an edge 30 which surrounds the suction opening 7 without interruptions and against which a transport holder 3 to be sucked off can be placed in as close a contact as possible.The suction device 2 comprises a drawer 9, which is arranged in the dirt sink 6 in the dirt trapping position. The drawer 9 in the dirt trapping position can be seen, for example, in FIG. 3. For removing dirt that has accumulated within the dirt sink 6 and in the drawer 9, the drawer 9 can be pulled out of its dirt trapping position shown in FIG. 3 into its position shown in FIG. 5, for example.The suction housing 5 has an inner contour 10 which, according to the sectional illustration from FIG. 3, is inclined in the direction of a current path of the suction through the suction housing 5 toward the dirt sink 6. Between the suction opening 7 and the dirt sink 6, the inner contour 10 furthermore has a contour maximum 11. The inner contour 10 of the suction housing 5 is inclined in a direction starting from the contour maximum 11 to the suction opening 7. In the other, namely opposite direction, the inner contour 10 is inclined with respect to the dirt sink 6, as already mentioned above.According to the figures, the suction opening 7 is oriented downward in the direction of gravity. A normal 12 to the suction opening 7 and a normal 13 to the suction connection opening 8 of the suction housing 5 are oriented at right angles to one another. As a result, the suction flow conducted through the suction housing 5 is deflected through 90° on its path from the suction opening 7 to the suction connection opening 8. The deflection of the suction flow can promote a deposition of contaminants in the dirt sink 6.The figures further illustrate that the suction device 2 has a handling device 14. The handling device 14 is configured to move transport holders 3 in front of the suction opening 7 for suction into a suction position 15.FIG. 1 shows how the handling device 14 in the form of a gripper has gripped a transport holder 3 to be suctioned off. In FIG. 2, the handling device 14 has moved the gripped transport holder 3 into its suction position 15 in front of the suction opening 7. After the transport holder 3 has been suctioned off, the handling device 4 can deposit the transport holder 3 back onto a transport carriage 26 of the bristle product production machine 1, as shown in FIG. 4. The transport holder 3 cleaned in this way can then be used again for producing bristle goods 21.The suction device 2 is also equipped with a mechanical cleaning element 16. The cleaning element 16 is designed as a cleaning slide and is configured to clean a side of a transport holder 3 located on the suction opening 7 in the suction position 15. For this purpose, the cleaning element 16 can be moved from a starting position, which it assumes in FIGS. 1 and 2, into its cleaning position 18 shown in FIG. 3. The cleaning element 16 is guided along the side of the transport holder 3 to be cleaned, which side is remote from the suction opening 7. As a result, contaminants located on this side of the transport holder 3 can be released and fed to a suction stream caused by the suction device 2.FIG. 3 shows that the suction position 15 of the transport holder 3 is arranged between the suction opening 7 and the cleaning position 18 of the cleaning element 16.The suction device 2 comprises a vacuum source 19 which is connected to the suction housing 5 via the suction connection opening 8. Upon activation of the vacuum source 19, a suction flow is generated through the suction housing 5.The figures illustrate that the transport holders 3 have transport receptacles 27 for bristle filaments 4 combined to form bristle bundles. The transport receptacles 27 are through-holes which completely pass through the transport holders 3. In this way, it is possible, when the suction device 2 is activated and the transport holder 3 is in the suction position, to generate a suction flow which leads from the outside through the transport receptacles 27 into the suction housing 5 of the suction device 2. As a result, contaminants located in and on the transport receptacles 27 can be reliably detached and suctioned off.The bristle product manufacturing machine 1 has a removal station 20 for ready-made bristle products 21, and a product store 22 for ready-made bristle products 21 is also present in this removal station 20. The removal station 20 is arranged upstream of the suction device 2 in the transport direction 100 of the transport holders 3 by the bristle product production machine 1. The transport holders 3 with the finished bristle goods 21 thus initially reach the removal station 20 before the transport holders 3 are then supplied to the suction device 2 after removal of the bristle goods 21 for cleaning purposes.Within the removal station 20, the bristle product production machine 1 has a removal gripper 28 with which four finished bristle products 21-in the exemplary embodiment shown here are tooth brushes-can be simultaneously removed from the transport holders 3 and fed to the product store 22.The removal of finished bristle goods 21 from a plate-shaped transport holder 3 with the removal gripper 28 is shown in FIG. 2. By means of a pivoting movement, the removal gripper 28 can then feed the four bristle articles 28 removed from the transport holders 3 in FIG. 2 to the product store 22, as is illustrated in FIGS. 3 and 4.Via the position shown in FIG. 5, the removal gripper 28 can then be pivoted back into its receiving position in FIG. 6 in order to remove further finished bristle goods 21 from the next transport holder 3.The bristle product manufacturing machine 1 further comprises a filament sensor 23. the filament sensor 23 is arranged between the removal station 20 and the suction device 2 and is also designed as an optical line sensor and also as a one-way laser light barrier or as a reflector light barrier. The filament sensor 23 is configured and intended to detect bristle filaments 4 remaining on transport holders 3. If bristle filaments 4 can be detected on the transport holders 3 after the removal of bristle articles 21, this indicates that the bristle articles 21 are defective, for example because individual bristle filaments 4 have not been connected to a bristle carrier of at least one of the bristle articles 21.The sensor signal of the filament sensor 23, which is output when a bristle filament 4 remaining on a transport holder 3 has been detected, can be used as an indication that at least one of the bristle articles 28 removed from this transport holder 3 is defective.In addition to the filament sensor 23, the bristle product production machine 1 can have a sensor, for example a reflector light barrier, which is / are configured and provided to check the transport holders 3 for bristle products 21 remaining on the transport holders 3 after the removal of the bristle products 21. If a bristle product 21 can still be detected on a transport holder 3 after the removal of the bristle products 21 with the sensor, which is not shown in the figures, this indicates a malfunction of the bristle product production machine 1 and the bristle product production machine 1 is preferably automatically stopped.The above-described testing of the transport holders 3 for bristle goods 21 that have still remained on the transport holders 3 after the actual removal of the bristle goods 21 can optionally also be carried out with the filament sensor 23.The product tray 22 is a conveyor belt movable in two opposite directions. The bristle product production machine 1 is configured by a control unit 25 to separate the defective bristle product 21 into a waste region 25 of the bristle product production machine 1 by corresponding actuation of the product deposit 22, namely the conveyor belt, upon detection of a defective bristle product 21.For this purpose, the control unit 25 is connected to the filament sensor 23 for detecting bristle filaments 4 remaining on transport holders 3 and is configured to bring about a selection as defectively tested bristle goods 21. In the embodiment shown of the bristle product production machine 1, the selection is effected by controlling the product deposit 22 configured as a conveyor belt. In this case, bristle products 21 can already be classified as defective as soon as a bristle filament 4 remaining on a transport holder 3 can be detected.By appropriate control of the product deposit 22, the bristle goods 21 deposited on the conveyor belt can then be separated out into the waste region 25 of the bristle goods production machine 1-in the embodiment shown formed as a box.The figures illustrate that the filament sensor 23 has a sensor-effective longitudinal extent which is greater than a plate thickness of the transport holders 3. In addition, the filament sensor 23 is oriented with its longitudinal extension transversely to the transport direction 100 of the transport holders 3. In this way, transport holders 3 which pass through the filament sensor 23 can be examined for remaining bristle filaments 4 both on the top side and on the bottom side in the pass.The filament sensor 23 designed as a line sensor is thus used for indirect testing of finished bristle goods 21. After the removal of bristle goods 27, transport holders 3 are tested for adhering bristle filaments 4 with the filament sensor 23, and the bristle goods 21 removed from the transport holders 3 are classified as defective upon detection of bristle filaments 4 on the transport holder 3 and are separated out into the waste region 25 of the bristle goods production machine 1.In addition, the bristle product production machine 1 also has a sensor 29, for example a camera, for preferably optical quality control of finished bristle products 21.If a defective bristle product 21 is detected with the sensor 29, the defective bristle product 21 can likewise be separated out into the waste region 25.List of reference characters1 Bristle product manufacturing machine 2 Suction device 3 Transport holder 4 Bristle filaments 5 Suction housing 6 Dirt sink 7 Suction opening 8 Suction connection opening 9 Drawer 10 Inner contour 11 Contour maximum 12 Normal to 7 13 Normal to 8 14 Handling device 15 Suction position 16 Cleaning element 17 Initial position 18 Cleaning position 19 Vacuum source 20 Removal station 21 Bristle product 22 Product store 23 Filament sensor 24 Waste region 25 Control unit 26 Transport carriages 27 Transport receptacles 28 Removal grippers 29 Sensor 30 Edge of 7 100 Transport direction

Claims

Bristle product production machine (1) with a suction device (2) for suctioning transport holders (3) for bristle filaments (4) and / or bristle products (21), wherein the suction device (2) comprises a suction housing (5) in which a dirt sink (6) is formed.Bristle product production machine (1) according to the preceding claim, wherein the dirt sink (6) is formed in the current path between a suction opening (7) and a suction connection opening (8) of the suction housing (5).Bristle product manufacturing machine (1) according to one of the preceding claims, wherein the suction device (2) has a drawer (9) which is arranged in the dirt sink (6) and can be removed from its dirt trapping position within the suction housing (5).Bristle product production machine (1) according to one of the preceding claims, wherein the suction housing (5) has an inner contour (10) which is inclined in the direction of the current path through the suction housing (5) towards the dirt sink (6).Bristle product production machine (1) according to one of the preceding claims, wherein the suction housing (5) has a contour maximum (11) on its inner contour (10) between the suction opening (7) and the dirt sink (6), in particular wherein the inner contour (10) is inclined from the contour maximum (11) in one direction towards the suction opening (7) and in another direction towards the dirt sink (6).Bristle product manufacturing machine (1) according to any one of claims 2 to 5, wherein the suction opening (7) is oriented downwards in the direction of gravity.Bristle product production machine (1) according to one of claims 2 to 6, wherein a normal (12) to the suction opening (7) and a normal (13) to the suction connection opening (8) of the suction housing (5) are aligned transversely or at right angles to one another.Bristle product production machine (1) according to one of the preceding claims, wherein the suction device (2) has a handling device (14) which is configured to move transport holders (3) in front of the suction opening (7) for suction into a suction position (15).Bristle product production machine (1) according to one of the preceding claims, wherein the suction device (2) has a, preferably mechanical, cleaning element (16), in particular a cleaning slide, which is movable from a starting position (17) into a cleaning position (18) for cleaning a side of a transport holder (3) located on the suction opening (7) facing away from the suction opening (7) in the suction position (15).Bristle product production machine (1) according to the preceding claim, wherein the suction position (15) is arranged between the suction opening (7) and the cleaning position (18) of the cleaning element (16).Bristle product production machine (1) according to one of the preceding claims, wherein the suction device (2) comprises a vacuum source (19), which is connected to the suction housing (5), in particular via the suction connection opening (8).Bristle product manufacturing machine (1) according to one of the preceding claims, having a removal station (20) for ready-made bristle products (21) and / or having a product store (22) for ready-made bristle products (21).Bristle product production machine (1), in particular according to one of the preceding claims, having a filament sensor (23) for detecting bristle filaments (4) remaining on transport holders (3).Bristle product production machine (1) according to the preceding claim, wherein the filament sensor (23) is arranged upstream of the suction device (2) and / or is an optical line sensor and / or a one-way light barrier, preferably a one-way laser light barrier, or a reflector light barrier.Bristle product production machine (1) according to one of the two preceding claims, wherein the filament sensor (23) is oriented with its longitudinal extent transversely or at right angles to the transport direction (100) of transport holders (3) and / or has a longitudinal extent which is greater than a dimension of the transport holders (3) that can be measured transversely to the transport direction (100).Bristle product production machine (1) according to one of the preceding claims, having a reject region (24) for defective bristle products.Bristle manufacturing machine (1) according to any of claims 12 to 16, wherein the product tray (22) is a conveyor belt movable in two opposite directions.Bristle product production machine (1) according to one of the preceding claims, wherein the bristle product production machine (1), in particular by a control unit (25), is configured to separate the defective bristle product (21) from the conveyor belt, preferably into the waste region (24), in particular by corresponding actuation of the conveyor belt, upon detection of a defective bristle product (21).Bristle product production machine (1) according to one of claims 13 to 18, wherein the bristle product production machine (1) has a control unit (25) which is connected to the filament sensor (23) for detecting bristle filaments (4) remaining on transport holders (3) and is configured to bring about a selection as incorrectly checked bristle products (21), in particular by controlling the product store (22) configured as a conveyor belt.Bristle product production machine (1) according to one of the preceding claims with a sensor (29), in particular a camera, for, preferably optical, quality control of finished bristle products (21).Use of a filament sensor (23) for the indirect testing of finished bristle goods (21), wherein after the removal of bristle goods (21), transport holders (3) are tested with the filament sensor (23) for adhering bristle filaments (4) and the bristle goods (21) removed from the transport holders (3) are classified as defective when bristle filaments (4) are detected at the transport holders (3).Use according to claim 21, wherein a line sensor and / or a one-way light barrier, preferably a one-way laser light barrier, and / or a reflector light barrier is / are used as the filament sensor (23).

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