Method for separating bristle bundles, separating device and brush stuffing machine

Description

[0001] The invention relates to a method for separating bristle bundles from a supply of loose bristle filaments, wherein a bundle separator with a separating notch is moved past the supply of loose bristle filaments in a separating movement, a bristle bundle is separated from the supply and the bristle bundle reaches the separating notch.

[0002] Furthermore, the invention also relates to a separating device for separating bristle bundles from a supply of loose bristle filaments. The device can be configured to carry out the aforementioned method. Furthermore, a brush-tufting machine with such a separating device is also proposed.

[0003] Bristle bundles are required for the production of brushes, such as toothbrushes. The bristle bundles can be separated from a supply of loose bristle filaments using a bundle separator of a separating device. For this purpose, the bundle separator can be moved past the supply of loose bristle filaments in a separating motion. A separating notch formed on the bundle separator is moved through a separating area on the supply of loose bristle filaments, causing bristle filaments to enter the separating notch and form there as bristle bundles.

[0004] Using the bundle separator, the separated bristle bundle can then be fed to a stuffing tool on a brush stuffing machine. The stuffing tool can then remove the bristle bundle from the separating notch and stuff it into a receiving hole in a ready-made brush body.

[0005] When separating bristle bundles from a supply of loose bristle filaments, the aim is to separate bristle bundles with as consistent a number of bristle filaments as possible. The number of bristle filaments contained in a bristle bundle is determined by the shape and size of the separation notch and can influence the performance characteristics of the bristle bundle. Therefore, the separation notch should be filled as completely as possible with bristle filaments during each separation process. This allows for the provision of bristle bundles that contain a consistent or only slightly different number of bristle filaments.

[0006] Document DE 929 124 C discloses a stuffing machine which provides a change in the direction of the compartment notch outside any compartment area of ​​the stock.

[0007] The object of the invention is therefore to provide a method for separating bristle bundles, a separating device for separating bristle bundles and a brush stuffing machine of the type mentioned at the outset, which promote a reliable and constant filling of the separating notch with bristle filaments.

[0008] To achieve this object, a method for separating tufts of bristles from a supply of loose bristle filaments is proposed, which method has the means and features of the independent claim directed to such a method. To achieve this object, a method for separating tufts of bristles from a supply of loose bristle filaments is proposed, wherein a tuft separator having a separating notch moves past the supply of loose bristle filaments in a separating movement, a tuft of bristles is separated from the supply and enters the separating notch, wherein the separating notch changes its direction of movement in a separating region of the supply at least twice, preferably at least three times, during the execution of the separating movement. By changing the direction of movement of the separating notch when separating tufts of bristles from the supply of loose bristle filaments in the separating region, the filling of the separating notch can be promoted.When separating bristle bundles from the supply of loose bristle filaments, a trailing edge which limits the sectioning notch and is located in the direction of movement of the sectioning notch during the sectioning movement of loose bristle filaments can play a decisive role. Bristle filaments facing the sectioning notch in the sectioning area come into contact with this trailing edge when the sectioning movement is carried out and are guided into the sectioning notch via this. The sectioning notch is therefore filled at least partially via this trailing edge of the sectioning notch in the direction of movement of the sectioning notch. By changing the direction of movement of the sectioning notch when the sectioning movement is carried out in the sectioning area on the supply of loose bristle filaments, the sectioning notch can be filled with bristle filaments several times from different directions. This promotes a more even distribution of the bristle filaments in the sectioning notch.Because the compartmentalizing notch changes its direction of movement at least twice, preferably at least three times, when carrying out the compartmentalizing movement in a compartmentalizing area on the supply, the compartmentalizing notch can thus be filled with bristle filaments particularly reliably and as completely as possible.

[0009] An even number of changes in direction of the compartment notch when executing the compartment movement in the compartment area allows the compartment notch to be moved into the compartment area on one side of the compartment area and removed from the compartment area on another side of the compartment area.

[0010] With an odd number of changes of direction, the compartment notch can be removed from the compartment area via the side via which the compartment notch was previously moved into the compartment area.

[0011] In one embodiment of the method, the compartmentalizing notch can pass through at least two, preferably at least three, reversal points during the compartmentalizing movement, which are arranged in the compartmentalizing area on the supply of loose bristle filaments. The reversal points can be arranged, for example, at different positions in the compartmentalizing area. The compartmentalizing movement, in which the compartmentalizing notch is moved through the compartmentalizing area on the supply of loose bristle filaments, can have a sinusoidal or sinusoidal course.

[0012] If the compartmentalizing notch passes at least two, preferably at least three, reversal points during the compartmentalizing movement in the compartmentalizing area, it is possible to make the compartmentalizing area smaller at the supply of loose bristle filaments, without, however, reducing the dwell time of the compartmentalizing notch in the compartmentalizing area at the supply of loose bristle filaments. The dwell time of the compartmentalizing notch in the compartmentalizing area during the compartmentalizing movement can also influence the filling of the compartmentalizing notch with bristle filaments. Overall, the method thus enables a reduction in the dimensions of the compartmentalizing area and thus a reduction in the space required for a bristle magazine in which the bristle filaments from the supply of loose bristle filaments can be stored.

[0013] In this way, it is possible to provide a sectioning device whose bristle magazine can be designed more compactly. This makes it possible to provide a sectioning device and also a brush tufting machine with such a device that requires less space overall, or whose bristle magazines can have a larger number of material channels for storing, for example, different types of bristle filaments, while requiring the same amount of space.

[0014] In one embodiment of the method, the compartmentalizing notch passes through at least two rear reversal points, facing away from a stuffing tool, during the compartmentalizing movement. These rear reversal points can be arranged at different positions in the compartmentalizing area on the supply. The at least two rear reversal points allow bristle filaments to be removed at different positions in the compartmentalizing area. This can also promote the filling of the compartmentalizing notch with bristle filaments.

[0015] In one embodiment of the method, the compartmental movement of the compartmental notch can be generated by superimposing at least two movements. These at least two movements can, for example, be sinusoidal and / or have different amplitudes. It is also possible to combine the compartmental movement from at least two consecutively executed movements. Here, too, the movements can, for example, be sinusoidal and / or have different amplitudes.

[0016] A first movement of the at least two movements may be a main movement of the compartment notch, by which the compartment notch is moved between a stuffing tool and the supply of loose bristle filaments.

[0017] The second movement of the at least two movements can be an additional movement of the compartment notch, which the compartment notch, in particular the bundle divider on which the compartment notch is arranged, carries out within the compartment area on the supply.

[0018] The main movement can be caused by a drive motor, in particular by an output shaft of the drive motor, a separating device, and / or a brush tamping machine. The additional movement can be caused by an actuator, for example, a piezo element. The actuator can, for example, be arranged in the power flow between the bundle separator, on which the separating notch is formed, and a drive motor for the bundle separator.

[0019] In one embodiment of the method and also of the dividing device described in more detail below, the actuator can be configured to adjust the length of a drive rod, via which the bundle divider can be connected at least indirectly to the drive motor.

[0020] In this way, the additional movement of the compartment notch can be caused by a length adjustment of this drive rod effected by the actuator and, if necessary, can be superimposed on the main movement of the bundle divider and its compartment notch.

[0021] In one embodiment of the method, the frequency and / or amplitude of the additional movement and / or the main movement are specified using a preferably programmable control unit, which can be configured to control the actuator and / or the drive motor. If necessary, the frequency and / or amplitude of the additional movement and / or the main movement can also be changed by the control unit. This allows for easy adaptation of the method to a changed production program.

[0022] With the help of a control unit, reversal points in any number and / or position in the separation area on the supply of loose bristle filaments can be specified and the separation of bristle bundles from the supply of loose bristle filaments can thus be adapted as required.

[0023] To achieve this objective, a separating device for separating tufts of bristles from a supply of loose bristle filaments is also proposed, which has the means and features of the independent claim directed to such a separating device. According to the invention, the separating device comprises a tuft separator with at least one separating notch, a bristle magazine for a supply of loose bristle filaments, and a drive device configured to move the tuft separator with the at least one separating notch in a separating movement through a separating region on the supply of loose bristle filaments such that the separating notch changes its direction of movement in the separating region at least twice, preferably at least three times. In this way, a separating device is created that can be used to carry out the method explained above and thus for the particularly reliable separation of tufts of bristles from the supply of loose bristle filaments.The compartmentalizing device can be configured, in particular, by the drive device to carry out the method according to one of the claims directed to such a method.

[0024] The drive device may comprise a drive motor and a gearbox. The drive motor may be connected to the bundle separator via the gearbox. The gearbox may be configured to convert a movement of an output shaft of the drive motor into a movement of the bundle separator and its separating notch. The drive motor of the drive device of the separating device may be a drive motor of a brush tufting machine equipped with the separating device.

[0025] In one embodiment of the separating device, the gear mechanism includes a control cam. The control cam can specify the separating movement of the bundle separator and thus the separating movement of the separating notch and can be connected to the drive motor of the drive device. The control cam can be arranged or formed on a cam carrier, for example, on a so-called double eccentric, which can be designed as a cam disk. The double eccentric can be part of the gear mechanism and can be driven at least indirectly by the drive motor of the drive device.

[0026] The control cam can be configured such that rotation of the control cam about a rotation axis is transmitted to the bundle separator via a mechanical connection, which can include a drive rod. The control cam can be configured such that the separating notch changes its direction of movement at least twice, preferably at least three times, when executing the separating movement in the separating area on the supply of loose bristle filaments.

[0027] The mechanical connection can comprise a pickup element, for example, a roller. The pickup element can be connected to the bundle separator via the previously mentioned drive rod. A movement of the control cam can then be transmitted to the bundle separator via the pickup element and the drive rod.

[0028] In one embodiment of the compartment device, the gear of the drive device comprises a connecting rod drive with which at least part of the compartment movement, in particular the aforementioned main movement, of the compartment notch can be caused.

[0029] The gear mechanism can comprise an actuator, for example a piezoelectric element, which is configured to cause an additional movement of the compartmentalizing notch, for example the one already mentioned above. In this embodiment of the compartmentalizing device, this actuator can then cause at least one of the at least two, preferably three, changes in the direction of movement of the compartmentalizing notch in the compartmentalizing area at the supply of loose bristle filaments.

[0030] The actuator can be configured to adjust the length of a drive rod of the gearbox connected to the bundle separator. The actuator can be positioned in the power flow between the drive motor and the bundle separator. The actuator can be combined with either a control cam or a connecting rod drive.

[0031] The drive device can have a preferably programmable control unit configured to control the drive motor and / or the actuator. The control unit can be programmed and / or configured such that the compartmentalizing notch changes its direction of movement at least twice, preferably at least three times, during the compartmentalizing movement in the compartmentalizing area. The compartmentalizing device can thus be configured by the control unit to carry out the method for compartmentalizing bristle bundles according to one of the claims directed thereto.

[0032] The control unit can also, for example, adjust the frequency and / or amplitude of the aforementioned additional movement and / or main movement of the compartment notch. This control unit preferably has a data interface for connection to a data storage device, in particular a cloud-based data storage device. Furthermore, the control unit can be programmable. For example, the number and / or position of reversal points of the compartment movement in the compartment area can be specified on the supply of loose bristle filaments.

[0033] Control programs can be accessed via the data interface, thus influencing the compartmentalization movement of the compartmentalization notch. Particularly when the compartmentalization device is used in a production network, it is also possible to store control programs and / or operating parameters in the data memory via this data interface if necessary and make them available to other compartmentalization devices. This enables efficient control of a production network comprising multiple compartmentalization devices, which can even be operated at different locations if necessary.

[0034] In one embodiment of the separating device, the bundle separator is designed as a circular arc separator and can be pivoted about a pivot axis in order to carry out the separating movement. In another embodiment of the separating device, the bundle separator is designed as a separating slide. The separating slide can be moved in an alternating linear movement in order to carry out the separating movement. In a further embodiment of the separating device, the bundle separator is designed as a separating disc. The separating disc can be pivoted or rotated about a pivot axis in order to carry out the separating movement. In particular, in the case of a bundle separator designed as a separating disc, the at least one separating notch can carry out an even number of movement changes on the supply of loose bristle filaments in the separating area when carrying out the separating movement.

[0035] To achieve the object, a brush stuffing machine with a compartmentalizing device according to one of the claims directed to such a compartmentalizing device is also proposed, which further comprises a stuffing device with a stuffing tool which is designed to stuff bristle bundles provided by the compartmentalizing device into a bristle carrier of a brush.

[0036] The stuffing device and the compartmentalizing device can be driven by a common drive motor. The drive motor can then also be referred to as the compartmentalizing device drive motor or the stuffing device drive motor.

[0037] An output shaft of the drive motor and the tucking tool can be connected via an eccentric. The eccentric can convert the rotation of the output shaft into an alternating movement of the tucking tool. The output shaft of the drive motor can function as the main shaft of the brush tucking machine, whose movement can be transmitted via the eccentric to the tucking tool and, via the aforementioned gear of the tucking device, to the bundle tucking device and the tucking notch.

[0038] The invention is described in more detail below using exemplary embodiments, but is not limited to these exemplary embodiments.

[0039] They show: Figure 1 is a perspective view of a brush tamping machine with a tamping device having a tamping tool and with a separating device whose bundle separator has a separating notch and is connected via a connecting rod drive to a drive motor, which simultaneously also serves as a drive for the tamping tool, Figure 2 is a perspective view of a brush tamping machine, the structure of which corresponds to the structure of the Figure 1 shown brush tamping machine, whereby here in the drive train between the bundle separator of the separating device and the drive motor an actuator is provided which is designed to adjust the length of a drive rod in order to superimpose an additional movement on the main movement of the bundle separator, Figure 3 a perspective view of the in Figure 2shown brush tamping machine, where the actuator arranged in the drive train between the bundle separator and the drive motor has adjusted the length of the drive rod and the separating notch formed on the bundle separator is in comparison to the one in Figure 2 shown position within the compartment area on the supply of loose bristle filaments is advanced towards the stuffing tool, Figure 4, which is shown in the Figures 2 and 3 shown brush tamping machine with further advanced dividing notch, Figure 5 a perspective view of a brush tamping machine, the dividing device of which has a control cam on a double eccentric instead of a connecting rod drive, with which the movement of the bundle dividing device can be effected according to the method according to the invention, Figure 6 the Figure 5shown brush tamping machine, where an actuator for adjusting the length of the drive rod connected to the bundle separator is provided in the drive train between the bundle separator and the drive motor, Figure 7, which in Figure 6 shown brush tamping machine with compared to Figure 6 by the actuator extended drive rod and correspondingly shifted compartment notch, Figure 8, which in Figure 7 shown brush tamping machine with compared to Figure 7extended drive rod, Figure 9 is a diagram illustrating the compartmentalization movement of a bundle compartmentalizer designed as a compartmentalizer and its compartmentalization notch in the compartmentalization area on a bristle magazine with a supply of loose bristle filaments, wherein the diagrams in column A show a compartmentalization movement of the compartmentalization notch without multiple changes of direction of the compartmentalization notch and the diagrams in column B show a compartmentalization movement of the compartmentalization notch with three-fold changes of direction of the compartmentalization notch in the compartmentalization area, Figure 10 is a diagram illustrating a compartmentalization movement of a compartmentalization notch with only one change of direction in the compartmentalization area and in which a pivot angle of the bundle compartmentalizer (Y-axis) is plotted against a rotation angle of an output shaft of the drive motor (X-axis) of the brush tufting machines shown in the previous figures, and Figure 11 is a diagram,which illustrates the compartmentalization movement of a with three changes of direction in the compartmentalization area on a supply of loose bristle filaments.

[0040] In the following description of the figures, elements of the described objects that correspond in their function are given the same reference symbols, even if they have a different design or shape.

[0041] The Figures 1-8 show different brush stuffing machines, each designated as a whole by 1. Each of the brush stuffing machines 1 shown has a compartmentalizing device 2 and a stuffing device 3 with a stuffing tool 4, which is configured to stuff bristle bundles 5 provided by the compartmentalizing device 2 into a bristle carrier 6 clamped on the brush stuffing machine 1.

[0042] The tucking tool 4 and the compartmentalizing device 2 are connected to a common drive motor 7 of the brush tucking machine 1. Thus, the tucking tool 4 and the compartmentalizing device 2 can be driven by the common drive motor 7. The drive motor 7 can thus be referred to as the drive motor of the compartmentalizing device 2 and also as the drive motor of the tucking device 3 and the tucking tool 4.

[0043] In all brush tamping machines 1 shown in the figures, an output shaft 8 of the drive motor 7 is drive-connected to the respective tamping tool 4 of the tamping device 3 via an eccentric 9.

[0044] The separating device 2 serves to separate bristle bundles 5 from a supply 10 of loose bristle filaments 11. The supply 10 of loose bristle filaments 11 is arranged in a bristle magazine 12 of the respective separating device 2. The bristle magazine 12 can also be referred to as a material box and has three material channels 25, in each of which one type of bristle filaments 11 can be arranged.

[0045] Each separating device 2 comprises a bundle separator 13 with a separating notch 14, a bristle magazine 12 for the supply 10 of loose bristle filaments 11, and a drive device 15. The drive device 15 is configured to move the bundle separator 13 with the separating notch 14 in a separating movement through a separating region 16 past the supply 10 of loose bristle filaments 11 such that the separating notch 14 changes its direction of movement at least twice, preferably at least three times, in the separating region 16. This promotes reliable filling of the separating notch 4 with loose bristle filaments 11 for separating bristle bundles 5 from the supply 10.

[0046] The Figures 1 to 8 The bundle dividers 13 shown are circular arc dividers that can be pivoted about a pivot axis. Figure 9 The bundle dividers 13 shown are linearly movable compartment sliders.

[0047] The drive device 15 of the separating device 2 has as drive motor the drive motor 7 of the brush stuffing machine 1 and a gear 17 via which the drive motor 7 is drivingly connected to the bundle separator 13 of the separating device 2.

[0048] The gear 17 is designed to convert a movement of the output shaft 8 of the drive motor 7 into the aforementioned compartment movement. Figures 1-8 The compartment devices 2 shown differ in particular in the design of their respective gear 17.

[0049] The Figures 5-8The separating devices 2 shown have a gear 17 with a control cam 18, which is formed on a double eccentric 19. The double eccentric 19 serves as a cam carrier. The control cam 18 specifies the separating movement of the bundle separator 13 and the separating notch 14, as well as the previously mentioned changes in direction of the separating notch 14 in the separating area. The drive motor 7 is drive-connected to the double eccentric 19 and thus also to the control cam 18. The bundle separator 13 is connected to a drive rod 30. Via a pickup element 31, here a roller, and a transmission lever 32, the movement of the control cam 18 can be transmitted to the drive rod 30 and from there to the bundle separator 13.

[0050] The Figures 1-4The dividing devices 2 shown have a gear 17, each of which comprises a connecting rod drive 20, with which at least part of the dividing movement, in particular the previously mentioned main movement of the bundle divider 13 and its dividing notch 14, can be caused.

[0051] In the Figures 2-4 and 6-8 In the compartmentalizing device 2 shown, the respective gear 17 also has an actuator 21, namely a piezo element, which is designed and provided to execute an additional movement of the compartmentalizing notch 14. With the aid of the actuators 21, the compartmentalizing notch 14 on the bundle compartmentalizer 13 can be caused to change its direction of movement in the compartmentalizing area 16 when the compartmentalizing movement is executed.

[0052] The actuators 21 shown in the figures are each configured to adjust the length of a drive rod 30 of the gear 17 connected to the respective bundle separator 13. The actuators 21 are arranged in the power flow between the drive motor 7 and the respective bundle separator 13.

[0053] The Figure 1 and 5 The brush tamping machines 1 shown each have a control unit 21 which is designed to control the respective drive motor 7. The drive device 15 of the compartment devices 2 according to the Figures 2-4 and 6-8 are equipped with a control unit 22 which is designed to control the drive motor 7 and the respective actuator 21.

[0054] Each of the control units 22 shown in the figures has a data interface 23 for connection to a data storage 24, in particular to a cloud-based data storage.

[0055] Via the data interfaces 23, control programs and / or operating parameters for operating the compartmentalizing device 2, the stuffing device 3, and the brush stuffing machine 1 as a whole can be retrieved from the data memory 24 or stored therein for other brush stuffing machines 1, compartmentalizing devices 2, or stuffing devices 3 and their control units 22. The data interface 23 of the respective control unit 22 is thus designed as a bidirectional data interface 23.

[0056] Each separating device 2 shown in the figures is designed to carry out the following method for separating bristle bundles 5 from a supply 10 of loose bristle filaments 11.

[0057] In this process, a bundle separator 13 with its separating notch 14 is moved past the supply 10 of loose bristle filaments 11 in a separating movement. A bristle bundle 5 is separated from the supply 10, whereby the bristle bundle 5, which consists of a number of loose bristle filaments 11, enters the separating notch 14.

[0058] When the compartmentalization movement is carried out in the compartmentalization area 16 on the supply 10, the compartmentalization notch 14 is moved in such a way that it changes its direction of movement in the compartmentalization area 16 at least twice, preferably at least three times.

[0059] Figure 11 shows a diagram in which the angular position of the bundle separator 13 and thus the position of the separating notch 14 relative to the supply 10 of loose bristle filaments 11 is plotted against a rotation angle of the output shaft 8 of the drive motor 7. A comparison with the diagram from Figure 10 makes it clear that the compartment notch 14 when carrying out the compartment movement according to the curve from Figure 11 in compartment area 16 at supply 10 changes its direction of movement three times. A comparable compartment movement is also illustrated in column B of Figure 9 .

[0060] Based on the curve from Figure 11 Reversal points 26, 27, 28 of the compartment notch 14 in the compartment area 16 on the supply 10 can also be seen. The two maxima of curve 11 illustrate rear reversal points 26 and 28 of the compartment notch 14 in the compartment area 16, which are already reached at an angular position of the bundle divider 13 of slightly less than 75°. The minimum of the curve between reversal points 26 and 28 represents a front reversal point 27, which is passed by the compartment notch 14 during the compartmentalization movement.

[0061] In comparison, Figure 10 that the curve from Figure 10The partitioning movement of the bundle partitioner 13 leads the partitioning notch 14 to only one rear reversal point, which, however, is only reached when the bundle partitioner 13 has already been pivoted by 80°.

[0062] Figure 11 This shows that the method according to the invention and the associated compartmentalizing movement of the bundle compartmentalizer 13 enables a reduction in the compartmentalizing area 16 on the supply 10 of loose bristle filaments 11, in which the compartmentalizing of bristle bundles 5 takes place, without reducing the duration for which the compartmentalizing notch 14 is located in the compartmentalizing area 16. Thus, more compact bristle magazines 12 or bristle magazines 12 can be used that have a larger number of correspondingly narrower material channels 25.

[0063] The compartment notches 14 can pass through at least two, three or possibly even several reversal points 26, 27 and 28 during the compartment movement of all compartment devices 2 shown in the figures. According to the illustrations in column B of the Figure 9 and also according to Figure 11 During the process performed on the separating devices 2, the separating notches 14 pass through a total of three reversal points 26, 27, and 28, each of which is arranged in the separating area 16 on the supply 10 of loose bristle filaments 11 and, if necessary, at different positions. The separating movement that the separating notch 14 then executes has a sinusoidal shape and can be understood as the superposition of two sinusoidal movements.

[0064] Figure 11shows that the compartmentalizing notch 14, when carrying out the compartmentalizing movement, passes two rear reversal points 26 and 28, each facing away from the stuffing tool 4 of the respective stuffing device 3, which can be arranged at different positions in the compartmentalizing area 16 on the supply 10. The Figure 11 The compartmental movement of the compartmental notch 14 illustrated can be generated by superimposing at least two movements, each of which may be sinusoidal and / or have different amplitudes. It is also possible to combine the compartmental movement of the compartmental notch 14 from at least two consecutively executed movements, for example, sinusoidal and / or having different amplitudes.

[0065] A first movement of the at least two movements can be a main movement of the compartmentalizing notch 14, by which the compartmentalizing notch 14 is moved between the previously mentioned stuffing tool 4 of the respective brush stuffing machine 1 and the supply 10 of loose bristle filaments 11 arranged in the bristle magazine 12 of the respective compartmentalizing device 2. The main movement allows the compartmentalizing notch 14 to be moved into the compartmentalizing area 16 and also removed from the compartmentalizing area 16 again.

[0066] A second movement of the at least two movements can be an additional movement of the compartmentalizing notch 14, which the compartmentalizing notch 14 performs within the compartmentalizing area 16 on the supply 10 and thus on the bristle magazine 12. The main movement of the compartmentalizing notch 14 can be caused by the previously mentioned drive motor 7 and in particular by a rotation of its output shaft 8.

[0067] The additional movement of the compartment notch 14 can be caused by the previously mentioned actuator 21 or, if necessary, also by the drive motor 7.

[0068] The frequency and / or the amplitude of the additional movement and / or the main movement can be specified using a preferably programmable control unit 22, such as the brush tamping machines 1 shown in the figures each have for the compartmentalizing devices 2, the tamping devices 3, and the control of the drive motor 7. Via the previously mentioned data interface 23, the brush tamping machines 1 shown in the figures are configured to retrieve control programs and / or operating and production parameters for controlling the individual functional units of the brush tamping machine 1, i.e., the compartmentalizing device 2 and the tamping device 3. Control programs, operating and production parameters for other brush tamping machines 1 and their compartmentalizing devices 2 and tamping tools 3 operated in a common production network can also be stored in the data memory 24 via the data interfaces 23.

[0069] The representation from Figure 9 shows a bundle divider 13, which is designed as a linearly movable compartment slide and has a compartment notch 14. The Figure 9 The arrows assigned to the reference number 13 of the bundle separator illustrate the direction of movement of the bundle separator 13 in the individual phases of the compartment movement, which are shown in lines I to VII of the Figure 9 are shown.

[0070] The representations from column A in Figure 9 illustrate a compartmental movement in which the bundle divider 13 and its compartmental notch 14 in the compartmental area 16 only change their direction of movement once.

[0071] According to column A, line I, the compartmentalizing notch 14 enters the compartmentalizing area 16 on the bristle magazine 12 with the supply 10 of loose bristle filaments 11. According to column A, line II, the movement of the bundle compartmentalizer 13 and thus the movement of the compartmentalizing notch 14 through the compartmentalizing area 16 continues until the compartmentalizing notch 14 has reached its only rear reversal point shown in column A, line IV via the intermediate position illustrated in column A, line III.

[0072] Starting from the position in column A, row IV, the compartment notch 14 is then moved again from the compartment area 16 on the supply 10 to the positions shown in column A, rows VI and VII.

[0073] The representations from column B in Figure 9 show a compartment movement of the compartment notch 14 in which the compartment notch 14 changes its direction of movement three times in the compartment area 16.

[0074] According to column B, line I, the compartment notch 14 also enters the compartment area 16 on the bristle magazine 12. Column B, line II shows that loose bristle filaments 11 enter the compartment notch 14 via a rear edge 29 of the compartment notch 14, which is located in the direction of movement of the compartment notch 14 through the compartment area 16. If the direction of movement of the compartment notch 14 is reversed, the compartment notch 14 is filled via a second edge 33 of the compartment notch 14, which is opposite the first edge 29.

[0075] According to column B, line III, the compartment notch 14 has reached its first, rear reversal point 26. Starting from this first rear reversal point 26, the compartment movement of the compartment notch 14 continues in the opposite direction, whereby the compartment notch 14 reaches the position shown in column B, line IV, in which the compartment notch 14 has reached its front reversal point 27 in the compartment area 16.

[0076] From this front reversal point 27, the compartment notch 14 is then moved to the second, rear reversal point 28. The compartment notch 14 has then reached the rear reversal point 28 in the illustration according to column B, row V.

[0077] From this rear reversal point 28, the compartment notch 14 is then moved over the Figure 9 , Column B, lines VI and VII shown positions from the compartment area 16 on the supply 10 of loose bristle filaments 11.

[0078] In column B, row III of Figure 9 the first and thus rearmost reversal point 26 of the two rear reversal points 26 and 28 is shown, which the compartment notch 14 passes when the method is carried out.

[0079] In comparison, Figure 9 , column A, line IV, that the compartment notch 14 was moved significantly further to the rear reversal point shown there.

[0080] A comparison of the representation in column A, row III of the Figure 9with the representation from column B, row IV of the Figure 9 thus makes it clear that the proposed method, in which the compartment notch 14 changes its direction of movement in the compartment area 16 at least twice, preferably at least three times, enables a reduction in the width of the compartment area 16. List of reference symbols

[0081] 1 Brush tufting machine 2 Partitioning device 3 Tufting device 4 Tufting tool 5 Bristle bundle 6 Bristle carrier 7 Drive motor 8 Output shaft 9 Eccentric between 8 and 7 10 Supply 11 Bristle filaments 12 Bristle magazine 13 Tuft divider 14 Partitioning notch 15 Drive device 16 Partitioning area 17 Gearbox 18 Control cam 19 Double eccentric 20 Connecting rod 21 Actuator 22 Control unit 23 Data interface 24 Data memory 25 Material channel 26 First rear reversal point 27 Front reversal point 28 Second rear reversal point 29 First edge of 14 30 Drive rod 31 Pick-up element, roller 32 Transmission lever 33 Second edge of 14

Claims

1. Method for picking bristle bundles (5) from a supply (10) of loose bristle filaments (11), wherein a bundle picker (13) having a picking notch (14) is moved in a picking movement past the supply (10) of loose bristle bundles (11), in the process a bristle bundle (5) being separated from the supply (10) and making its way into the picking notch (14), characterized in that, when the picking movement is carried out, the picking notch (14) changes its direction of movement in a picking region (16) on the supply (10) at least twice, preferably at least thrice.

2. Method according to the preceding claim, wherein, when the picking movement is carried out, the picking notch (14) passes at least two, preferably at least three, reversal points (26, 27, 28) which are arranged in the picking region (16) on the supply (10) of loose bristle filaments (11), preferably at different positions, and / or wherein the picking movement has a sinusoidal profile.

3. Method according to one of the two preceding claims, wherein, when the picking movement is carried out, the picking notch (14) passes at least two rear reversal points (26, 28) which face away from a tufting tool (4) and are disposed at different positions in the picking region (16) on the supply (10).

4. Method according to one of the preceding claims, wherein the picking movement is generated by superimposing at least two movements, which are in particular sinusoidal and / or have different amplitudes, or wherein the picking movement is composed of at least two movements which are carried out successively and are preferably sinusoidal and / or have different amplitudes.

5. Method according to the preceding claim, wherein a first movement of the at least two movements is a main movement of the picking notch (14), by way of which the picking notch (14) is moved between a tufting tool (4) and the supply (10) of loose bristle filaments (11), and / or wherein a second movement of the at least two movements is an additional movement of the picking notch (14), which the picking notch (14) carries out within the picking region (16) on the supply (10).

6. Method according to the preceding claim, wherein the main movement is caused by a drive motor (7), in particular by an output shaft (8), of a picking device (2), and / or wherein the additional movement is caused by an actuator (21), in particular by a piezo element, which is preferably disposed in the force flux between the bundle picker (13), on which the picking notch (14) is formed, and a drive motor (7) for the bundle picker (13).

7. Method according to one of the preceding claims, wherein the frequency and / or the amplitude of the additional movement and / or of the main movement is predefined by a preferably programmable controller (22).

8. Picking device (2) for picking bristle bundles (5) from a supply (10) of loose bristle filaments (11), wherein the picking device (2) comprises a bundle picker (13) having at least one picking notch (14), and a bristle magazine (12) for a supply (10) of loose bristle filaments (11), characterized in that the picking device (2) comprises a drive device (15) which is adapted to move the bundle picker (13) having the at least one picking notch (14) in a picking movement through a picking region (16) past the supply (10) of loose bristle filaments (11) in such a way that the picking notch (14) changes its direction of movement in the picking region (16) on the supply (10) at least twice, preferably at least thrice.

9. Picking device (2) according to the preceding claim, wherein the picking device (2) is adapted to carry out, by way of the drive device (15), the method according to one of claims 1 to 7.

10. Picking device (2) according to one of claims 8 or 9, wherein the drive device (15) comprises a drive motor (7) and a gearbox (17), wherein the drive motor (7) is connected to the bundle picker (13) by way of the gearbox (17), and the gearbox (17) is adapted to convert a movement of an output shaft (8) of the drive motor (7) into a movement of the bundle picker (13).

11. Picking device (2) according to claim 10, wherein the gearbox (17) comprises a control curve (18) which is in particular formed on a double eccentric (19) and predefines the picking movement and / or is operatively connected for driving purposes to the drive motor (7).

12. Picking device (2) according to one of claims 10 or 11, wherein the gearbox (17) comprises a con-rod mechanism (20) by way of which at least part of the picking movement, in particular the main movement, of the picking notch (14) can be caused.

13. Picking device (2) according to one of claims 10 to 12, wherein the gearbox (17) comprises an actuator (21), in particular a piezo element, which is adapted to carry out a, or the, additional movement of the picking notch (14).

14. Picking device (2) according to claim 13, wherein the actuator (21) is adapted to adjust the length of a drive linkage (30) of the gearbox (17) that is connected to the bundle picker (13), and / or wherein the actuator (21) is disposed in the force flux between the drive motor (7) and the bundle picker (13).

15. Picking device (2) according to one of claims 10 to 14, wherein the drive device (15) has a controller (22) which is adapted to control the drive motor (7) and / or the actuator (21), preferably wherein the controller (22) has a data interface (23) for connecting to a data storage (24), in particular to a cloud-based data storage.

16. Brush-tufting machine (1) having a picking device (2) according to one of claims 8 to 15, and having a tufting device (3) with a tufting tool (4) which is adapted to tuft bristle bundles (5) provided by the picking device (2) into a bristle carrier (6).

17. Brush-tufting machine (1) according to claim 16, wherein the tufting device (3) and the picking device (2) are able to be driven by a common drive motor (7).

18. Brush-tufting machine (1) according to claim 17, wherein an output shaft (8) of the drive motor (7) and the tufting tool (4) are connected by way of an eccentric (9).