Methods for manufacturing brushes and brush manufacturing machines

Abstract

A method for manufacturing brushes, wherein bristle bundles (5) are taken from a supply of loose bristle filaments (4) by means of a bundle divider (3) and subsequently fed to further processing and / or manufacturing, characterized in that at least one hold-down device (12) is moved to hold down the loose bristle filaments (4) and / or to push back protruding bristle filaments (4) from the supply of loose bristle filaments (4) towards free ends (13) of the bristle filaments (4), wherein a hold-down movement performed by the at least one hold-down device (12) is coordinated by means of a control (14) to a removal movement of the bundle divider (3) such that the at least one hold-down device (12) does not contact and / or act upon the bristle filaments (4) at least at the moment of removal of a bristle bundle (5) from the supply of loose bristle filaments (4).

Description

The invention relates to a method for manufacturing brushes, wherein bristle bundles are taken from a supply of loose bristle filaments by means of a bundle divider and subsequently fed to further processing and / or manufacturing, wherein at least one hold-down device is moved to hold down the loose bristle filaments and / or to push back bristle filaments protruding from the supply of loose bristle filaments towards free ends of the bristle filaments. Furthermore, the invention also relates to a brush manufacturing machine, in particular a brush stuffing machine, with a material box and with a bundle divider which, in order to remove at least one bristle bundle comprising several bristle filaments from the material box, can be moved past a bundle removal point of the material box in a removal movement, and wherein the brush manufacturing machine has at least one hold-down device which, in order to hold down the loose bristle filaments and / or to push back protruding bristle filaments from the supply of loose bristle filaments, can be moved in a hold-down movement against free ends of the bristle filaments. Such processes and brush-making machines are known from the prior art, for example from DE 36 07 453 A1 and DE 26 32 328 A1, and from practical experience in various embodiments. These processes and devices are used, for example, for manufacturing, and in particular for stuffing, brushes or brooms. DE 36 07 453 A1 discloses, for example, a brush manufacturing machine with a feeding device for bristles to a stuffing machine or the like, wherein the bristles are initially stored as bound or wrapped bundles in a bundle magazine and wherein the feeding device has a singulation device for the bristle bundles behind the magazine in the transport direction. Behind the singulation device, an opening device for removing the binding or wrapping is provided, which has at least one holding gripper for a bundle end and a peeling device for the binding or wrapping. DE 26 32 328 A1 discloses a method and a brush-making machine for producing brushes. The method involves taking bristles in tufts from a bristle supply that is at least partially pressurized and feeding them to the packing process, with the pressurization of the bristle supply being carried out continuously by machine. The brush-making machine is equipped to carry out the method and includes a device for feeding bristles to a packing unit, a magazine, a loading unit, and a divider for removing the stored bristles. The brush-making machine is characterized in that the loading unit has several height-adjustable pressure elements in the magazine, at least one of which pressurizes the stored bristles. The use of at least one hold-down device, with which the supply of loose bristle filaments can be held or brought into an orientation and order favorable for bristle bundle removal by a periodically performed hold-down movement—which can be an alternating lifting motion against the free bristle ends of the filaments—is known and proven in practice. However, it has been found that problems can arise when using such hold-down devices when removing bristle bundles from the supply of loose bristle filaments. The use of the hold-down device can cause individual bristle filaments to be retained in the material box when bristle bundles are removed from the supply of loose bristle filaments, which is usually kept in a material box. This can lead to the removal of bristle bundles containing an unequal number of bristle filaments.Furthermore, the use of hold-down devices can lead to an undesired axial displacement or distortion of individual or multiple bristle filaments in the supply of loose bristle filaments, which can negatively affect the quality of the bristle bundles extracted using the bundle divider and thus also negatively affect the quality of the manufactured brushes. The object of the invention is therefore to provide a method and a device of the type mentioned at the outset, with which the manufacture of brushes can be simplified and the disadvantages described above can be reduced or even avoided. To solve this problem, the means and features of the independent claim directed to such a method for manufacturing brushes are proposed for the method of the type defined at the outset. In particular, it is proposed for the solution in the method of the type mentioned at the outset for manufacturing brushes that a hold-down movement performed by the hold-down device is coordinated by means of a control system with a removal movement of the bundle divider such that the at least one hold-down device does not contact and / or act upon the bristle filaments at least at the moment of removal of a bristle bundle by means of the bundle divider. In this way, the bristle filaments in the supply of loose bristle filaments are not contacted by the at least one hold-down device, while the bundle divider removes at least one bristle bundle from the supply of loose bristle filaments, which is generally arranged in a material box and / or in a material channel of a material box. Thus, the at least one hold-down device can neither retain bristle filaments in the material box and / or in the supply of loose bristle filaments, nor cause undesirable axial distortion of individual bristle filaments. Overall, this facilitates and simplifies the uniform removal of bristle bundles from the supply of loose bristle filaments using a bundle divider. It may be advantageous if the hold-down movement of at least one hold-down device is coordinated with the removal movement of the bundle divider on which the brushes are manufactured, depending on a state, in particular a rotational position, a main shaft, a main drive shaft and / or a main drive of a brush manufacturing machine. It is possible to coordinate the hold-down movement of at least one hold-down device with the unloading movement of the bundle divider, depending on the relative position and / or relative speed of a packing tool and / or the relative speed and / or relative position of the bundle divider relative to the material box and / or frame of a brush manufacturing machine on which the brushes are manufactured. Furthermore, the hold-down movement of at least one hold-down device can be coordinated with the unloading movement of the bundle divider, depending on the relative speed and / or relative position of the bundle divider relative to the material box and / or frame of a brush manufacturing machine on which the brushes are manufactured. Furthermore, the at least one retainer can be moved against the free ends of the bristle filaments after each, every second, or every third, or after several, extraction strokes of the bundle divider. In this way, the loose bristle filaments, from which individual bristle bundles are extracted by the bundle divider, can be reoriented, realigned, or rearranged at different intervals using the at least one retainer. To solve the problem, a brush manufacturing machine of the type mentioned at the outset is also proposed, which has the means and features of the independent claim directed to such a brush manufacturing machine. In particular, to solve the aforementioned problem, it is proposed that the brush manufacturing machine defined at the outset has a control system with which a hold-down movement of the at least one hold-down can be coordinated with the removal movement of the bundle divider in such a way that the at least one hold-down is arranged, at least when the bundle divider is in the removal position on the material box, in a position in which it does not contact and / or act upon the bristle filaments located in the material box.In this way, it can be prevented that the effects described above occur due to the use of at least one hold-down device, namely an undesired axial distortion of individual bristle filaments and / or a retention of individual bristle filaments when removing bristle bundles from the supply of loose bristle filaments using the bundle divider. In the case of such material boxes which have several material channels from which bristle bundles can be taken depending on the position of the material box relative to the bundle divider, it is advantageous if the hold-down movement of that hold-down is coordinated with the removal movement of the bundle divider which is assigned to the material channel of the material box from which the bundle is to be taken. The brush manufacturing machine can advantageously be configured to carry out the method according to one of claims 1 to 3. The control system of the brush manufacturing machine can be designed as a control unit with which the hold-down movement of the at least one hold-down device is set up as a function of a parameter to coordinate the hold-down movement of the at least one hold-down device with the removal movement of the bundle divider in the manner described above. This parameter can be a parameter stored in an instruction memory and / or data memory of the brush manufacturing machine. It is particularly advantageous if the parameter at least indirectly represents a relative position and / or relative speed of the bundle divider to the material box.Furthermore, it is possible that the control system is designed as a control unit with which the hold-down movement of the at least one hold-down device is set up as a function of a sensor signal to coordinate the hold-down movement of the at least one hold-down device with the removal movement of the bundle divider. The sensor signal can at least indirectly represent a relative position and / or relative velocity of the bundle divider to the material box. In this way, a state, e.g. a relative position and / or relative velocity of the bundle divider to the material box, can be determined using a sensor, and the hold-down movement of the at least one hold-down can be adjusted to the movement of the bundle divider when removing bristle bundles from the supply of loose bristle filaments as a function of the sensor signal generated by the sensor. In one embodiment of the brush manufacturing machine, the control system can be configured to coordinate the hold-down movement of the at least one hold-down device with the removal movement of the bundle divider depending on a relative position and / or relative speed of the bundle divider to the material box and / or depending on a relative position and / or relative speed of a divider lever on which the bundle divider is arranged, to the material box. Furthermore, it is possible that the control system of the brush manufacturing machine is configured to coordinate the hold-down movement of at least one hold-down device with the removal movement of the bundle divider, depending on the state of a main shaft, a main drive shaft, and / or a main drive of the brush manufacturing machine. This state could, for example, be a rotational speed and / or a rotational position of the main shaft, the main drive shaft, and / or the main drive of the brush manufacturing machine. Furthermore, it is possible that the control system for coordinating the hold-down movement of at least one hold-down device with the removal movement of the bundle divider is set up depending on a tamping movement of a tamping tool of the brush manufacturing machine. If the brush manufacturing machine has at least one sensor that is configured to indirectly determine the relative position and / or relative movement of the bundle divider to the material box, the hold-down movement of the at least one hold-down can be coordinated with the unloading movement of the bundle divider by the control system, depending on a sensor signal from this sensor. This allows for particularly precise and, above all, flexible coordination of the hold-down movement of the at least one hold-down to the unloading movement of the bundle divider. Furthermore, it is possible that the brush manufacturing machine has at least one sensor that is configured, at least indirectly, to determine the relative position and / or relative movement of a divider lever on which the bundle divider is mounted. In this way, the hold-down movement of the at least one hold-down lever can be coordinated with the unwinding movement of the bundle divider by the control system, depending on a sensor signal. This, too, can enable the coordination between the hold-down movement of the at least one hold-down lever and the unwinding movement of the bundle divider with the desired accuracy and flexibility. The brush manufacturing machine can further include a sensor designed to monitor the condition of the main shaft, the main drive shaft, the main drive, and / or the tamping tool of the brush manufacturing machine. The hold-down movement of at least one hold-down device can then be coordinated with the removal movement of the bundle divider by the control system, depending on a sensor signal from this sensor. If the brush manufacturing machine has a material box that includes several material channels, it may be advantageous if the brush manufacturing machine has a hold-down device for each material channel of the material box and if the control system is set up to coordinate the hold-down device movements of all hold-down devices with the removal movement of the bundle divider. The invention relates to improvements in the technical field of brush manufacturing. Among other things, a method for manufacturing brushes is proposed. This method involves coordinating the hold-down movement of at least one hold-down device of a brush manufacturing machine with the removal movement of a bundle divider in such a way that the hold-down device does not contact loose bristle filaments arranged in a material box of the brush manufacturing machine 1, at least at the moment of bundle removal. An embodiment of the invention will now be described in more detail with reference to the following figure. It should be noted that the invention is not limited to the embodiment shown in the figure. Further embodiments of the invention result from combinations of the features contained in the claims with each other and / or from combinations of the features or with features of the embodiment described below. The figure shows a highly schematic representation: Fig.1. A brush manufacturing machine comprising a material box, a stuffing tool and a bundle divider in the form of a circular arc divider arranged between the material box and the stuffing tool, which is designed to remove bristle bundles from the supply of loose bristle filaments held in the material box and to transfer removed bristle bundles to the stuffing tool, wherein the brush manufacturing machine has a control in the form of a control unit with which hold-down movements of three hold-downs, which are assigned to individual material channels of the material box, can be coordinated with the bundle removal movement of the bundle divider. Figure 1 shows a brush manufacturing machine, designated as a whole by 1, which is configured here as a brush packing machine. The brush manufacturing machine 1 has a material box 2 and a bundle divider 3. The bundle divider 3 can be moved past a bundle removal point 6 of the material box 2 in a removal movement to remove a bristle bundle 5, comprising several bristle filaments 4, from the material box 2. The removal movement can also be referred to as a removal stroke and is indicated by the double arrow Pf. 1. The bundle compartment 3 is designed as a so-called circular arc compartment 3 and has a compartment notch 8 on its front side 7 facing the material box 2. When the bundle divider 3 is moved past the material box 2 and the bundle removal point 6 during the removal movement with the compartment notch 8 on its front 7, bristle filaments 4 enter the compartment notch 8 of the bundle divider 3 via an open channel end 9 of one of the three material channels 10 of the material box 2 and are gathered there to form the bristle bundle 5. The bristle bundle 5 arranged in the compartment notch 8 is transferred to the stuffing tool 11 by the movement of the bundle divider 3 towards a stuffing tool 11 of the brush manufacturing machine, as indicated by the double arrow PF1. The brush manufacturing machine 1 has a total of three hold-down devices 12. The hold-down devices 12 serve to hold down the loose bristle filaments 4 and / or to push back protruding bristle filaments 4 from the supply of loose bristle filaments 4 in the material box 2. For this purpose, the hold-down devices 12 are moved from time to time against the free ends 13 of the bristle filaments 4 in the material box 2 in a hold-down motion indicated by the double arrows Pf. 4. The hold-down devices 12 can also be referred to as material pushers. The brush manufacturing machine 1 has a control system 14 with which the hold-down movements of the hold-downs 12 can be coordinated with the removal movement of the bundle divider 3 in such a way that the hold-down 12, which is assigned to the material channel 10 from which the removal of bristle bundles 5 is currently to take place using the bundle divider 3, is arranged in a position, at least during the removal of bristle bundles, i.e. when the bundle divider 3 is in the removal position on the material box 2, in which it does not contact and / or act upon the bristle filaments 4 located in the material box 2. The control unit 14 is designed as a control-regulating unit 14, with which the hold-down movements of the hold-downs 12 can be coordinated with the removal movement of the bundle compartment 3 as a function of a parameter. Specifically, the control-regulating unit 14 is configured to perform this coordination of the hold-down movements of the hold-downs 12 with the removal movement of the bundle compartment 3 based on or dependent on a sensor signal from a sensor 15, which at least indirectly represents a relative position and / or relative velocity of the bundle compartment 3 to the material box 2. The control unit 14 is designed to coordinate the hold-down movement of the hold-downs 12 with the removal movement of the bundle divider 3, depending on the relative position and / or relative speed of the bundle divider 3 to the material box 2, and specifically to coordinate the hold-down movements of the hold-downs 12 depending on the relative position and / or relative speed of a divider lever 16, on which the bundle divider 3 is arranged, relative to the material box 2. For this purpose, the sensor 15 is arranged on a frame 17 of the brush manufacturing machine 1. As soon as the divider lever 16, together with the bundle divider 3 arranged on the divider lever 16, reaches the position shown in Fig. 1, the sensor 15 and a sensor contact 18 switch or activate the control unit.A sensor signal representing the position of the divider lever 16 and the bundle divider 3 relative to the material box 2 and the material channel 10, from which bristle bundles 5 are taken, is transmitted to the control unit 14 via a signal connection 19 formed between the sensor 15 and the control unit 14, here a line 19. The control unit 14 is in control communication with the drives 20 of the three hold-down devices 12 via corresponding control connections, here also lines 19, and sends a corresponding control signal via the lines 19 to the drives 20 for adjusting the hold-down devices 12. Fig. 1 clearly shows that when the bundle divider 3 is in the removal position at the bundle removal point 6, the hold-down device 12 associated with the material channel 10, from which bristle bundles 5 are removed, does not act upon the loose bristle filaments 4 arranged in the material channel 10 of the material box 2. In addition, the control unit 14 is also configured to coordinate the hold-down movements of the three hold-down devices 12 with the removal movement of the bundle divider 3, depending on a tamping movement of the tamping tool 11 of the brush manufacturing machine 1, by sending corresponding control signals to the drives 20. Other potential synchronization or coordination partners, such as a main drive, a main drive shaft, and / or a main shaft, can be monitored using appropriate sensors so that parameters can be determined which the control unit 14 can then use to coordinate the movements of the three hold-down devices 12 with the removal movement of the bundle divider 3. With a suitable sensor, the states of the main shaft, the main drive shaft, the main drive, and / or the tamping tool 11 of the brush manufacturing machine 1 can be monitored. The movements of the three hold-down devices 12 can then be coordinated with the removal movement of the bundle divider 3 by the control unit 14, depending on a sensor signal from the corresponding sensor. Fig. 1 clearly shows that the brush manufacturing machine 1 has a hold-down device 12 for each of the three material channels 10 of the material box 2. Each of the hold-down devices 12 can be moved in alternating hold-down movements (see double arrows Pf. 4 on the drives 20 of the hold-down devices 12) in order to contact the bristle filaments 4 and in particular the free ends 13 of the bristle filaments 4 from above and thus to maintain or restore the order of the bristle filaments within the material channels 10 of the material box 2. The material box 2 is pivotable about its pivot axis 21 relative to the bundle divider 3. This is to bring the individual material channels 10 of the material box 2 into a bundle removal position. In Fig. 1, the middle of the three material channels 10 is arranged in such a removal position. The control unit 14 of the brush manufacturing machine 1 is configured to coordinate the movements of all three hold-downs 2 with the removal movement of the bundle divider 3 as described above. For this purpose, the control unit 14 is connected to each of the three drives 20 of the hold-downs 12 via a line or control connection 19. The following process for manufacturing brushes can be carried out on the previously described brush manufacturing machine 1. In this process, bristle bundles 5 are taken from a supply of loose bristle filaments 4, which are held in the material channels 10 of the material box 2, using the bundle divider 3, and then fed to further processing and / or manufacturing. The bundle divider 3 conveys the removed bristle bundles 5 to the tamping tool 11 of the brush manufacturing machine 1. The tamping tool 11 tampers the bristle bundles, together with a wire armature fed laterally via a wire feed device 22, into a receiving hole 23 of a brush body 24 that is held in place. For this purpose, the brush body 24 is clamped onto a holding device 25 of the brush manufacturing machine 1. The hold-down devices 12 of the brush manufacturing machine 1 serve to hold down the loose bristle filaments 4 and / or to push back protruding bristle filaments 4 from the supply of loose bristle filaments 4. For this purpose, the hold-down devices 12 are moved, preferably at specific intervals, against the free ends 13 of the bristle filaments 4, which are arranged in the material channels 10 of the material box 2. The hold-down movement performed by the hold-down devices 12 is coordinated by the control 14 of the brush manufacturing machine 1 with the removal movement of the bundle divider 3 so that at least the hold-down device 12, which is assigned to the material channel 10 from which the removal of bristle bundles 5 is to take place at the moment, does not contact and / or act upon the bristle filaments 4 at least at the moment of removal of a bristle bundle 5 from the material channel 10 of the material box 2. The movements of the hold-down devices 12 can be coordinated with the removal movement of the bundle divider 3 depending on a condition, for example, a rotational position, a main shaft, a main drive shaft, and / or a main drive of the brush manufacturing machine 1. This is possible because the condition, in particular a rotational position, of the main shaft, the main drive shaft, and / or the main drive of the brush manufacturing machine 1 can be related to the relative position, the relative movement, and / or the relative speed of the bundle divider 3 to the material box 2. However, it is also possible to control the hold-down movements of the hold-downs 12 as a function of a relative position, a relative speed, and / or a tamping movement of the tamping tool 11 of the brush manufacturing machine 1. The previously described coordination between the hold-down movements of the hold-downs 12 and the removal movement of the bundle divider 3 can also be controlled as a function of a relative position and / or relative speed of the bundle divider 3 to the material box 2 and / or to the frame 17 of the brush manufacturing machine 1. The synchronization of the hold-down movements with the removal movement can be achieved mechanically via a gearbox, cam disc, connecting rod, or similar transmission elements, or by a servo motor that, for example, runs synchronously with a main shaft. The drives 20 of the hold-downs 12 can, for example, serve as such servo motors. In one embodiment of the method, it is possible that the hold-down device 12, which is associated with the material channel 10 from which bristle bundles 5 are currently being removed, is moved against the free ends 13 of the bristle filaments 4 after each removal stroke, after every second removal stroke, or even after every third or several removal strokes of the bundle divider 3, in order to maintain or restore the order of the loose bristle filaments 4 within the material channel 10 of the material box 2. In order to insert the bristle bundles 5 together with wire anchors into a receiving hole 23 of a brush body 24 clamped on the holding device 25, the tamping tool 11 has a pusher tongue 26 that moves alternately in the direction of the double arrow Pf.2. This pusher tongue can be moved inside the tamping tool 11 in the direction of the clamped brush body 24, and on its way towards the brush body 24 first engages a supplied wire anchor and then, together with the wire anchor, a bristle bundle 5 transferred from the bundle divider 3 to the tamping tool 11. Together with the wire anchor, the bristle bundle 5 is then anchored in one of the receiving holes 23 of the brush body 24 by a corresponding tamping movement of the entire tamping tool 11 and the pusher tongue 26. The pivoting movement of the material box 2 is illustrated by the double arrow PF3. Depending on which material channel 10 of the material box 2 a bundle is to be removed from using the bundle divider 3, the material box 2 is pivoted accordingly about its pivot axis 21. Reference symbol list 1 Brush manufacturing machine 2 Material box 3 Bundle divider 4 Bristle filaments 5 Bristle bundles 6 Bundle removal point 7 Front 8 Dividing notch 9 Open channel end 10 Material channel 11 Stuffing tool 12 Hold-down device 13 Free ends of 4 14 Control 15 Sensor 16 Divider lever 17 Frame 18 Sensor contact 19 Cable 20 Drives of 12 21 Swivel axis of 2 22 Wire feed device 23 Pick-up hole 24 Brush body 25 Holding device 26 Pusher tongue Pf.1 Movement of 3 / Removal movement Pf.2 Movement of 11 Pf.3 Movement of 2 Pf.4 Hold-down movement

Claims

Method for manufacturing brushes, wherein bristle bundles (5) are taken from a supply of loose bristle filaments (4) by means of a bundle divider (3) and subsequently supplied to further processing and / or manufacturing, characterized in that at least one hold-down device (12) is moved to hold down the loose bristle filaments (4) and / or to push back protruding bristle filaments (4) from the supply of loose bristle filaments (4) towards free ends (13) of the bristle filaments (4), wherein a hold-down movement performed by the at least one hold-down device (12) is coordinated by means of a control (14) to a removal movement of the bundle divider (3) such that the at least one hold-down device (12) does not contact and / or act upon the bristle filaments (4) at least at the moment of removal of a bristle bundle (5) from the supply of loose bristle filaments (4). Method according to claim 1, characterized in that the hold-down movement of the at least one hold-down (12) is coordinated to the removal movement of the bundle divider (3) depending on a state, in particular a rotational position, a main shaft, a main drive shaft and / or a main drive of a brush manufacturing machine (1) and / or depending on a stuffing movement of a stuffing tool (11) and / or depending on a relative speed and / or a relative position of the bundle divider (3) to the material box (2) and / or to a frame (17) of a brush manufacturing machine (1). Method according to claim 1 or 2, characterized in that the at least one hold-down device (12) is moved against the free ends (13) of the loose bristle filaments (4) after each removal stroke, after each second removal stroke or after each third or after several removal strokes of the bundle divider (3). Brush manufacturing machine (1), in particular brush stuffing machine (1), with a material box (2) and with a bundle divider (3), which is movable past a bundle removal point (6) of the material box (2) in a removal movement for the purpose of removing at least one bristle bundle (5) comprising several bristle filaments (4) from the material box (2), characterized in that the brush manufacturing machine (1) has at least one hold-down device (12), which is movable in a hold-down movement towards free ends (13) of the bristle filaments (4) in order to hold down the loose bristle filaments (4) and / or to push back protruding bristle filaments (4) from a supply of loose bristle filaments (4) located in the material box (2), wherein the brush manufacturing machine (1) has a control (14) with which the hold-down movement of the at least one hold-down device (12) can be coordinated with the removal movement of the bundle divider (3),that the at least one retainer (12) is arranged, at least at the moment of removal of a bristle bundle (5) from the material box (2) by means of the bundle divider (3), in a position in which it does not contact and / or act upon the bristle filaments (4) located in the material box (2). Brush manufacturing machine (1) according to claim 4, characterized in that the brush manufacturing machine (1) is set up to carry out the method according to one of claims 1 to 3. Brush manufacturing machine (1) according to claim 4 or 5, characterized in that the control unit (14) is designed as a control-regulating unit (14) with which the hold-down movement of the at least one hold-down device (12) can be adjusted to the removal movement of the bundle divider (3) depending on a characteristic parameter, in particular depending on a sensor signal of a sensor (15) which at least indirectly represents a relative position and / or relative speed of the bundle divider (3) to the material box (2). Brush manufacturing machine (1) according to one of claims 4 to 6, characterized in that the control (14) is configured to coordinate the hold-down movement of the at least one hold-down device (12) to the removal movement of the bundle divider (3) depending on a relative position and / or relative speed of the bundle divider (3) to the material box (2) and / or depending on a relative position and / or relative speed of a divider lever (16) on which the bundle divider (3) is arranged, to the material box (2). Brush manufacturing machine (1) according to one of claims 4 to 7, characterized in that the control (14) is set up to coordinate the hold-down movement of the at least one hold-down (12) to the removal movement of the bundle divider (3) depending on a state, in particular a rotational position, a main shaft, a main drive shaft, a main drive and / or depending on a stuffing movement of a stuffing tool (11) of the brush manufacturing machine (1). Brush manufacturing machine (1) according to one of claims 4 to 8, characterized in that the brush manufacturing machine (1) has at least one sensor (15) which is configured at least for the indirect determination of the relative position and / or relative movement of the bundle divider (3) to the material box (2) and / or at least for the indirect determination of a relative movement and / or relative position of one or the divider lever (16), wherein the hold-down movement of the at least one hold-down lever (12) can be adjusted to the removal movement of the bundle divider (3) by means of the control (14) depending on a sensor signal of the sensor (15). Brush manufacturing machine (1) according to claim 8 or 9, characterized in that the brush manufacturing machine (1) has a sensor (15) which is configured to monitor a state of the main shaft, main drive shaft, main drive and / or the stuffing tool (11) of the brush manufacturing machine (1), wherein the hold-down movement of the at least one hold-down (12) can be adjusted to the removal movement of the bundle divider (3) by means of the control (14) depending on a sensor signal of the sensor (15). Brush manufacturing machine (1) according to one of claims 4 to 10, characterized in that the brush manufacturing machine (1) has a hold-down device (12) for each material channel (10) of the material box (2) and that the control (14) is set up to coordinate the hold-down movements of all hold-down devices (12) to the removal movement of the bundle divider (3).

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