• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    The invention is concerned with improvements in the field of brush manufacturing. For this purpose, in particular a method for providing bristle filaments (4) for the production of brushes is proposed. The bristle filaments (4) are sucked into an intermediate end position (10) against a sieve (9) of a baffle plate (8) by means of negative pressure. In order to prevent dirt or dust particles from adhering to the sieve (9) or to free the sieve (9) from dirt or dust particles already adhering to it, the sieve (9) is at least temporarily, preferably during, the suction of the bristle filaments (4). vibrated.
    公开号:BE1026044B1
    申请号:E20185907
    申请日:2018-12-19
    公开日:2019-12-23
    发明作者:Ingo Kumpf；Marc König；Marco Saladin
    申请人:Zahoransky Ag；
    IPC主号:
    专利说明:

    Method for providing bristle filaments, transport device and brush making machine
    The invention relates to a method for providing bristle filaments for the production of brushes, bristle filaments being sucked into an intermediate end position by means of negative pressure against a screen of a baffle plate.
    Furthermore, the invention also relates to a transport device for bristle filaments with a baffle plate, which comprises at least one sieve, the transport device being set up to suck bristle filaments into a intermediate end position by means of negative pressure against a sieve of a baffle plate.
    Finally, the invention also relates to a brush manufacturing machine with such a transport device.
    In the manufacture of brushes, bristle filaments are attached to a bristle carrier or brush carrier to create a bristle field.
    In automated brush production, the bristle filaments are removed from a bristle magazine and fed to processing stations located downstream of the bristle magazine for further processing. The bristle filaments are removed from the bristle magazine with the aid of a mechanical dividing device which divides the bristle filaments in bundles from the stock of loose bristle filaments in the bristle magazine. After they have been removed from the bristle magazine, the bristle filaments are placed in an intermediate end position at one of the by means of negative pressure and a fluid flow, usually an air flow, caused by the negative pressure
    BE2018 / 5907
    Compartment device transported downstream processing station. For this, the aforementioned baffle plate is used, which is equipped with a sieve. The screen is permeable to the fluid flow generated by the negative pressure, but is so dense or close-meshed that the bristle filaments are retained by the screen. The negative pressure can thus act through the sieve, the sieve simultaneously forming an end stop for the bristle filaments, which defines the intermediate end position of the bristle filaments.
    Debris or dust particles can adhere to the bristle filaments; this is especially the case if the bristle filaments have been ground beforehand. If the bristle filaments are now sucked in by means of negative pressure, the dirt or dust particles can get caught in the previously mentioned and relatively dense sieve of the baffle plate. As the operating time increases, the dirt or dust particles adhering to the individual bristle filaments increasingly clog the screen of the baffle plate until suction of the bristle filaments against the screen of the baffle plate is finally no longer possible. As soon as the vacuum for sucking in the bristle filaments can no longer be built up sufficiently through the screen of the baffle plate, it is necessary to replace and clean the screen or the entire baffle plate. To clean the baffle plate and the sieve or to replace it with an uncleaned baffle plate with a free sieve, the brush production must be interrupted. The cleaning and / or the replacement require a downtime of the brush manufacturing machine, which is associated with a loss of production. There is also a risk that the dirt or dust particles adhering to or on the sieve lead to problems and quality losses in brush production.
    The object of the invention is therefore to provide a method, a transport device and a brush manufacturing machine of the type mentioned, which a change or a
    BE2018 / 5907
    Allow or largely avoid cleaning such baffle plates at longer intervals.
    To achieve this object, the means and features of the independent claim directed to such a method are proposed in the method mentioned at the outset. In particular, in order to achieve the object in the method mentioned at the outset, it is proposed that the screen of the baffle plate be vibrated at least temporarily.
    It has been found that when the bristle filaments are sucked in, dust or other particles impinging on the screen of the baffle plate adhere poorly or even not at all to the screen if the screen is at least temporarily vibrated. The vibration allows even deposits already adhering to the sieve, such as grinding dust which is detached from the bristle filaments, to be removed from the sieve. In this way, the sieve or even the entire baffle plate can be freed from such adhesions and cleaned from time to time without interrupting the brush production.
    In one embodiment of the method it is provided that the sieve is set to vibrate at least during the suction of the bristle filaments. With the help of the vibrations, contamination of the screen of the baffle plate during the suction of the bristle filaments can be largely avoided. This has the positive effect that the sieve and / or that no longer have to be cleaned or only have to be cleaned at longer intervals. It is thus possible to have to replace the baffle plate and / or the sieve only because of the wear that usually occurs and no longer because of the dirt or dust particles sucked in.
    With the aid of the method according to the invention, the downtimes in the provision of the bristle filaments can be reduced,
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    Avoid production downtimes and increase the quality of brush production.
    In this context, it can be advantageous if the sieve is vibrated at least until the bristle filaments have reached their intermediate end position on the sieve. While a batch of bristle filaments is transported to its intermediate end position on the screen of the baffle plate, dust or dirt particles can also be sucked in. If the sieve is now vibrated at least for the period of suction of the bristle filaments, adherence of the particles sucked in to or in the sieve can be effectively prevented. The vibrations not only clean the baffle plate screen, they also prevent or at least reduce contamination of the screen.
    The sieve or the entire baffle plate with the sieve can be vibrated using a vibration exciter. It has proven to be particularly effective if the sieve or the entire baffle plate is set with the sieve in an ultrasonic vibration. Due to the frequencies and vibration amplitudes occurring in the ultrasound range, the adherence of dirt or dust particles to the sieve is very reliably prevented and particles already adhering to the sieve are removed. To generate such ultrasonic vibrations, an ultrasonic vibrator can be used as the vibration exciter.
    The vibrations caused by the vibration exciter, in particular by the ultrasonic vibrator, can be transmitted to the screen of the baffle plate by means of a vibration transmission structure. In this context it can be particularly advantageous if the vibration transmission structure comprises support struts or webs on which the sieve is arranged at least indirectly.
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    In a particularly practical embodiment of the method it can be provided that the bristle filaments are sucked into their intermediate end position on the screen of the baffle plate by transport lines. The bristle filaments can get into bundle receptacles of a collecting plate. This collecting plate with its bundle receptacles for the bristle filaments can be arranged between the baffle plate and the transport lines. The negative pressure applied then acts at least in part through the screen of the baffle plate, the bundle receptacles of the collecting plate and into the transport lines, so that the bristle filaments can be reliably transported to their intermediate end position.
    At this point it should be mentioned that the collecting plate mentioned can be used as an intermediate buffer and / or a further means of transport for the bristle filaments. The bristle filaments can then be fed from the collecting plate to further processing steps for producing brushes.
    Before being fed into the intermediate end position, the bristle filaments can be combined into bristle bundles by means of a dividing device and then sucked into the intermediate end position against the sieve as bristle bundles. In a particularly expedient manner, the bristle filaments combined into bristle bundles can be sucked in through the transport lines already mentioned above. As already mentioned above, the transport lines are preferably connected to one or the collecting plate, in the bundle receptacles of which the bristle bundles are conveyed for further processing. In their intermediate end position, the bristle filaments combined into bristle bundles can already protrude at least with part of their length into the bundle receptacles of the collecting plate.
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    Furthermore, the baffle plate can be positioned at a distance from the collecting plate in order to create a suction gap between the collecting plate and the baffle plate. This can also be used to extract particles that, for example, cannot fit through the sieve due to their size.
    It can also be advantageous if the screen and / or the baffle plate is / are cleaned at certain time intervals by means of a blowing device. For this purpose, for example, gas and / or compressed air pulses can be delivered to the screen and / or the baffle plate with the blowing device, preferably against the transport direction of the bristle filaments in their intermediate end position.
    The blowing device can comprise a compressed air source and a discharge funnel connected to the compressed air source, via which compressed air pulses can be delivered to the screen and / or the baffle plate.
    To achieve the object, a transport device of the type mentioned at the beginning with the means and features of the independent claim directed to such a transport device is also proposed. In particular, a transport device is proposed to achieve the object, which has a vibration exciter with which the screen of the baffle plate can be set in vibration at least temporarily, for example during the suction of the bristle filaments. In this way, a transport device is created which is set up to carry out the previously described method for providing bristle filaments for brush production.
    It can be advantageous if the sieve is formed from a fabric, in particular from a steel fabric. Are steel mesh
    BE2018 / 5907 very robust and wear-resistant, so that the service life of a sieve made of steel mesh is comparatively long. A wear-related exchange of a sieve made of steel or even stainless steel mesh is therefore only necessary at relatively large intervals.
    It may also be expedient if the sieve is formed from a so-called weft fabric that is impermeable to bristle filaments. Weave fabrics are fabrics that have a high density of their weft threads, which means that they have a comparatively high mechanical strength and also a low permeability. This is expedient since, when very fine bristle filaments are provided, the bristle filaments must be prevented from penetrating the sieve during suction. The weft fabric has a sufficiently high density so that even fine bristle filaments do not penetrate the weft fabric, while the weft fabric allows gas or air to pass through, which should pass through the sieve when the bristle filaments are drawn in. The sieve can be particularly corrosion-resistant if it is a sieve made of stainless steel or stainless steel mesh. The previously mentioned weft fabric, from which the sieve can be formed, is also preferably made of stainless steel.
    The baffle plate can have a holding frame on which the sieve, in particular in the form of at least one fabric layer or fabric plate, is arranged. The use of such a holder frame can promote the reliable and, above all, uniform transmission of the vibrations caused by the vibration exciter via the baffle plate to the screen. The use of such a holder frame is therefore particularly favorable when the vibrations of the vibration exciter are to be coupled in via the baffle plate and transmitted to the sieve.
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    The screen can further comprise at least one fabric plate or fabric layer. This fabric plate or fabric layer can be arranged on the holding frame of the baffle plate. However, the sieve can also comprise at least two fabric layers or fabric plates placed one above the other. The use of two fabric layers or fabric plates placed one on top of the other can increase the overall rigidity of the sieve and define the intermediate end position of the bristle filaments even more precisely.
    A first fabric layer or fabric plate of the sieve in the transport direction of the bristle filaments can be more closely meshed than a fabric layer or fabric plate following in the transport direction. The fabric plates described above can also be referred to as sieve plates.
    The baffle plate can also have a vibration transmission structure. This vibration transmission structure can be connected to the screen of the baffle plate. In this way it is possible to transmit vibrations that are initially transmitted to the baffle plate as evenly as possible via the vibration transmission structure to the screen of the baffle plate. In this way, the entire sieve can be vibrated in order to prevent dirt or dust particles from adhering to the sieve or to remove dirt or dust particles that have already adhered to the sieve.
    For example, webs or support struts can be provided as the vibration transmission structure, which form part of the baffle plate and in particular are connected to the aforementioned holding frame of the baffle plate.
    In order not to have to arrange the vibration exciter in the immediate vicinity of the baffle plate, it can be advantageous if the baffle plate or the sieve in turn has at least one vibration transmission element
    BE2018 / 5907 with the vibration exciter. As a vibration transmission element, for example, a holder and / or a guide element is used, which can either be connected to the baffle plate or to the screen of the baffle plate.
    The vibrator is preferably an ultrasonic vibrator. Ultrasonic transducers are set up to generate vibrations with frequencies that are in the ultrasonic range. Ultrasonic vibrations have proven to be particularly suitable for preventing buildup on the sieve or for cleaning and removing dirt or dust particles that are already attached to the sieve.
    It is also expedient if the transport device has a vacuum source for providing the vacuum. This can be connected at least indirectly to the baffle plate in order to provide the negative pressure required for the provision or transport of the bristle filaments into their intermediate end position on the screen of the baffle plate.
    The transport device can have a suction housing. The baffle plate with the sieve can be arranged in this suction housing. The suction housing is in turn connected to the vacuum source. In this way, a vacuum can be generated within the intake housing with the aid of the vacuum source, from which the baffle plate and the sieve arranged thereon are also detected.
    The suction housing can in turn have a valve with which a suction connection to the vacuum source can be closed if necessary. In this way, when the valve is closed, a negative pressure in the suction connection between the suction housing and the negative pressure source can be maintained using the negative pressure source, but without the negative pressure on the functional elements of the
    BE2018 / 5907
    To transmit transport device through which the bristle filaments are transported. The valve of the suction housing only has to be opened if bristle filaments are actually to be sucked into their intermediate end position. Overall, the energy efficiency of the method or of the transport device can be increased in this way. An inefficient build-up and breakdown of the vacuum can be avoided in this way.
    To provide the highest possible suction power, the transport device can also have a vacuum buffer. The vacuum source can be connected to the aforementioned suction housing via this vacuum buffer. In this context, it is particularly advantageous if the aforementioned valve is arranged as close as possible to the intake housing, preferably on or even in the intake housing. A lockable volume can be provided as the vacuum buffer between the vacuum source and the suction housing. This volume can be provided particularly easily by a hose or pipe section. The use of a hose or tube also makes it possible not to have to place the vacuum source directly next to the suction housing of the transport device. The aforementioned suction connection can also serve as a vacuum buffer.
    In order to protect the vacuum source, for example a compressor, from sucked-in dirt, in particular from grinding dust, the transport device can also have a dust filter. This dust filter can be arranged between the vacuum source and the baffle plate. In order to impair the effect of the vacuum source as little as possible, it is also advantageous if this dust filter is arranged closer to the vacuum source than to the suction housing. For this purpose, the dust filter can, for example, be arranged adjacent to or directly on a suction opening of the vacuum source.
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    It is also possible for the transport device to have a quick-change system for the dust filter. Such a quick-change system allows the dust filter to be changed, preferably without tools.
    It is also advantageous if the transport device has a quick-change system for the screen of the baffle plate. In this way it is possible to replace the screen quickly, for example the two fabric layers already mentioned, which can support each other, and above all without tools. The use of the transport device according to the invention and the application of the method according to the invention prevent contamination of the sieve. However, the impact of bristle filaments on the screen of the baffle plate can damage the screen after several thousand cycles in such a way that the screen must be replaced. In order to keep the downtimes as short as possible, the previously mentioned quick change system on the baffle plate is advantageous.
    The transport device can also have transport lines through which the bristle filaments can be sucked in. The transport lines can open into receptacles or bundle receptacles of a collecting plate which can be arranged or arranged between the transport lines and the baffle plate with the sieve. The transport lines can be designed as hoses and / or can run between a bundle removal device, with which the bristle filaments are removed in bundles from a supply of loose bristle filaments, in particular from a bristle magazine, and the previously mentioned collecting plate.
    A first holder, on which the transport lines are arranged, can be arranged adjacent to the bundle removal device. A second holder can be arranged adjacent to the collecting plate, with the outlet-side or distal ends of the transport lines
    BE2018 / 5907. When the collecting plate is in the receiving position, the outlet openings of the transport lines can then open into the bundle receptacles of the collecting plate.
    The transport device can also have a positioning device. With this positioning device, a position of the baffle plate in the suction housing and / or a relative position of the baffle plate to the transport lines and / or to the collecting plate can be changed. In this way it is possible, for example, to change the distance between the baffle plate and the collecting plate in such a way that a suction gap is established between the baffle plate and the collecting plate. At least part of the fluid flow for sucking in the bristle filaments can be passed through this suction gap. If the baffle plate is not positioned directly on the collecting plate, the bristle filaments protrude a little from the bundle receptacles of the collecting plate. With the help of the positioning device of the transport device, the baffle plate with the sieve can act as a slide and push the bristle filaments that protrude or protrude completely back into the bundle receptacles of the collecting plate.
    In one embodiment of the transport device, which does not have to have such a positioning device, such a suction gap can also be formed between the collecting plate and the baffle plate.
    Furthermore, the transport device can have a blowing device for cleaning the screen. The blowing device can be set up to clean the sieve at certain time intervals by dispensing compressed air and / or gas impacts and to remove adhering particles. For this purpose, the blowing device can preferably deliver compressed air pulses onto and / or through the sieve. The delivery of compressed air pulses on and / or through the sieve can
    BE2018 / 5907 preferably against the transport direction of the bristle filaments in their intermediate end position. Coarse particles that get caught in the sieve when the bristle filaments are sucked in can also be reliably removed from the sieve.
    Finally, the object is also achieved by a brush manufacturing machine with the means and features of the independent claim directed to such a brush manufacturing machine. In particular, it is provided that the brush manufacturing machine has a transport device according to one of the claims directed to such a transport device.
    Exemplary embodiments of the invention are explained in more detail with reference to the following figures. The figures show in a highly schematic representation
    Figure 1 is a transport device of a brush manufacturing machine, which has a baffle plate with a sieve against which bristle filaments are sucked into an intermediate end position by means of negative pressure, wherein at least the sieve of the baffle plate can be at least temporarily set in vibration by means of a vibration exciter. This with the aim of loosening dirt or dust particles already adhering to the sieve and / or avoiding the adherence of dirt or dust particles to the sieve when the bristle filaments are sucked in, and
    Figure 2 shows the brush manufacturing machine shown in Figure 1 with transport device, the transport device here having a blowing device which is set up for cleaning the baffle plate and the sieve.
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    Figures 1 and 2 show a brush manufacturing machine, generally designated 1. The brush manufacturing machine 1 comprises a transport device 2 and a bundle compartment device 3. With the bundle compartment device 3, bristle bundles 5, which comprise a plurality of bristle filaments 4, can be extracted from a bristle magazine 6.
    The bristle bundles 5 of the transport device 2 are provided for suction at a transfer position 7. The transport device 2 comprises an impact plate 8, which has at least one sieve 9. The transport device 2 is set up to suck the bristle filaments 4 into an intermediate end position 10 on the screen 9 by means of negative pressure.
    The transport device 2 also has a vibration exciter 11. With the aid of this vibrating exciter 11, the screen 9 of the baffle plate 8 can be set in vibration at least temporarily, here during the suction of the bristle filaments 4 into their intermediate end position 10 on the screen 9. This has the positive effect that when the bristle filaments 4 are sucked in, dirt or dust particles that are sucked in do not get caught in the comparatively narrow-meshed sieve 9. Due to the vibrations of the sieve 9, the dirt or dust particles do not adhere, but detach immediately from the sieve 9 and are removed.
    The screen 9 is formed from a stainless steel mesh, which is made in the manner of a weft mesh. The screen 9 is so tight that it is impermeable to the bristle filaments 4. In this way, the screen 9 thus represents an end stop for the bristle filaments 4, which they cannot pass despite the negative pressure present. The baffle plate 8 thus defines with its sieve 9 the intermediate end position 10 of the sucked-in bristle filaments 4.
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    The baffle plate 8 of the transport device 1 comprises a holder frame
    12. The sieve 9 is arranged on this holder frame 12. On closer inspection of the figure, it is noticeable that the screen 9 comprises two fabric layers 13 and 14, which are placed one above the other. Due to the two fabric layers 13 and 14 arranged one above the other, the rigidity of the sieve 9 of the baffle plate 8 is increased, which favors the accuracy of feeding the bristle filaments 4 into their intermediate end position 10. A first fabric layer 13 in the transport direction of the bristle filaments 4 is more closely meshed than the fabric layer 14 of the two fabric layers 13 and 14 that follows in the transport direction.
    The baffle plate 8 also has a vibration transmission structure 15. This vibration transmission structure 15 is connected to the screen 9 and its two fabric layers 13 and 14. The vibration transmission structure 15 of the baffle plate 8 comprises four webs 16 which are arranged on the holder frame 12 and are evenly spaced apart, on which the two fabric layers 13 and 14 of the screen 9 of the baffle plate 8 are arranged.
    The baffle plate 8 is in turn connected to the vibration exciter 11 via two vibration transmission elements 17. The vibration transmission elements 17 allow the vibration exciter 11 to be arranged at a certain distance from the baffle plate 8 and the sieve 9.
    The vibration exciter 11 of the transport device 2 shown in the two figures is an ultrasonic oscillator and is set up to generate vibrations in the ultrasonic range and to transmit them to the baffle plate 8 and the sieve 9.
    To provide the negative pressure, the transport device 2 also has a negative pressure source 18. The vacuum source 18 is
    BE2018 / 5907 at least indirectly connected to the baffle plate 8. The transport device 2 has a suction housing 19. The baffle plate 8 with the sieve 9 is arranged in this suction housing 19.
    The suction housing 19 is connected to the vacuum source 18 via a suction connection 20. The suction housing 19 also has a valve 21 with which the suction connection 20 to the vacuum source 18 can be closed if necessary.
    The valve 21 is shown in the figure in a highly schematic manner as a flap or slide in its closed position. If the valve 21 is opened, there is a suction opening of the suction connection 20, so that the vacuum source 18 is in direct suction connection with the suction housing 19 of the transport device 2 and a fluid, in this case an air flow, through which functional groups of the transport device 2 upstream of the vacuum source 18 are generated can be. With the aid of this fluid flow, the bristle filaments 4 are sucked into their intermediate end position 10, in which they stand on the screen 9 of the baffle plate 8. Longitudinal axes of the bristle filaments 4 are oriented approximately at right angles or at right angles to a surface of the screen 9.
    The vacuum source 18 is connected to the suction housing 19 of the transport device 2 via a vacuum buffer 22. The suction connection 20, which is provided here by a pipe or hose that runs between the vacuum source 18 and the suction housing 19, serves as the vacuum buffer 22. The suction power of the transport device 2 can be maximized with the aid of the vacuum buffer 22.
    The transport device 2 also has a dust filter 23 which is arranged between the vacuum source 18 and the baffle plate 8. In the embodiment of the transport device 2, which in the figure
    BE2018 / 5907, the dust filter 23 is arranged adjacent to or on a suction opening 24 of the vacuum source 18. Both for the dust filter 23 and for the sieve 9 with its two fabric layers 13 and 14, the transport device 2 each has a quick-change system 25 which allows the fabric layers 13 and 14 or the dust filter 23 to be changed without tools.
    The transport device 2 furthermore comprises a plurality of transport lines 26. The transport lines 26 are hoses which are held adjacent to the transfer position 7 of the bristle bundles 5 by a first hose holder 27. With its distal ends 28, the transport lines 26 are arranged in a second tube holder 29. The transport lines 26 open into bundle receptacles 30 of a collecting plate 31 which is arranged between the transport lines 26 and the baffle plate 8.
    The figures clearly show that the collecting plate 31 lies flush against the second hose holder 29, so that the transport lines 26 open into the bundle receptacles 30 of the collecting plate 31. In addition, the bundle receptacles 30 of the collecting plate 31 have insertion bevels which facilitate the transition of the bristle filaments 4 into the bundle receptacles 30.
    The transport device 2 is also equipped with a positioning device 32. With the help of the positioning device 32, a position of the baffle plate 8 in the suction housing 19 can be changed. This with the aim of changing a relative position of the baffle plate 8 to the transport lines 26 or to the collecting plate 31. In the figures, the baffle plate 8 with its sieve 9 is at a certain distance from the collecting plate 31. As a result, a suction gap 33 is formed between the baffle plate 8 and the collecting plate 31, through which a fluid flow can also flow, around the bristle filaments 4
    BE2018 / 5907 to be transported through the transport lines 26 to their intermediate end position 10 on the screen 9 of the baffle plate 8.
    The suction gap 33 between the collecting plate 31 and the baffle plate 8 can also be used to suck in and remove particles which, because of their size, do not fit through the sieve 9. The vibrations of the sieve 9 and the baffle plate 8 caused by the vibration exciter 11 loosen particles already caught in the sieve 9 and prevent further particles from getting caught in the sieve 9. Particles can be removed laterally with the fluid flow via the existing suction gap 33 between the collecting plate 31 and the baffle plate 8.
    Figure 2 illustrates that the transport device 2 has a blowing device 34 for cleaning the screen 9 and also the baffle plate 8. With the aid of the blowing device 34, the sieve 9 can be cleaned at certain time intervals by emitting compressed air pulses, namely blown free. The delivery of the compressed air pulses preferably takes place against the transport direction of the bristle filaments 4 into their intermediate end position 10 on the baffle plate 8 and the sieve 9.
    It is particularly advantageous here if a housing opening 35 of the suction housing 19, through which the negative pressure acts on the collecting plate 31 and the transport lines 26 connected to it, is closed during this cleaning with the collecting plate 31 or another suitable closure, for example a closure plate , It is thus avoided that particles released by blowing the screen 9 and the baffle plate 8 out of the suction housing 19 and contaminate other areas or functional elements of the brush manufacturing machine 1.
    The blowing device 34 comprises a compressed air source 36 and one
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    Blow-out funnel 37. The compressed air source 36 is connected to the blow-out funnel 37 via a pressure hose 38. The discharge funnel 37 opens in the direction of the baffle plate 8. Compressed air pulses are emitted onto the baffle plate 8 and the sieve 9 via it. The discharge funnel 37 can be arranged stationary in the intake housing 19.
    However, it is also possible to provide the suction funnel 37 movably mounted in the suction housing 19. The blow-out funnel 37 can thus be moved between a starting position and a blow-out position adjacent to the baffle plate 8. This blow-out position corresponds approximately to the position which the blow-out funnel 37 assumes in FIG. As soon as the blow-out funnel 37 has reached its blow-out position, the baffle plate 8 and the sieve 9 can be blown free by delivering compressed air pulses from the compressed air source 36 and the blow-out funnel 37. When cleaning is complete, the discharge funnel 37 is moved back into its starting position.
    During the delivery of compressed air pulses to the screen 9 and the baffle plate 8, the vibration exciter 11 is preferably active so that it can vibrate the baffle plate 8 and the screen 9. This favors the cleaning action of the blowing device 34.
    Both figures show the bristle filaments 4 combined into bristle bundles 5 in their intermediate end position 10 on the baffle plate 8. In order to push the bristle filaments 4 completely back into the bundle receptacles 30 of the collecting plate 31, the positioning device 32 can again be used. In this case, the baffle plate 8 is then pushed against the protruding bristle bundles 5, as a result of which the bristle filaments 4 reach their position in the bundle receptacles 30 of the collecting plate 31 which is required for further processing.
    On the previously described brush manufacturing machine 1
    BE2018 / 5907 below described methods for providing bristle filaments for the production of brushes. The bristle filaments 4 are sucked into the intermediate end position 10 against the sieve 9 of the baffle plate 8 by means of negative pressure. In order to prevent dirt or dust particles from adhering to the sieve 9, the sieve 9 of the baffle plate 8 is set to vibrate at least during the suction of the bristle filaments 4.
    The sieve 9 is preferably vibrated at least until the bristle filaments 4 have reached their intermediate end position 10 on the sieve 9. The sieve 9 is set into ultrasonic vibration with the aid of the vibration exciter 11, which is designed as an ultrasonic oscillator in the exemplary embodiment shown. The vibrations caused by the vibration exciter 11 are transmitted to the screen 9 by means of the previously mentioned vibration transmission structure 15.
    The vibration transmission structure 15 includes the previously mentioned webs 16, which can also be referred to as support struts. The sieve 9 is arranged at least indirectly on these support struts 16.
    The bristle filaments 4 are sucked into the intermediate end position 10 by the transport lines 26. They come into the bundle receptacles 30 of the collecting plate 31, which is arranged between the baffle plate 8 and the transport lines 26. The sieve 9 closes the exit side of the collecting plate 31 in such a way that the bristle filaments 4 remain in the bundle receptacles 30 with at least part of their length.
    The bristle filaments 4 are previously combined to form the bristle bundles 5 by means of the compartment device 3, transported to the transfer position 7 and from there subsequently as a bristle bundle 5 through the
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    Transport lines 26 sucked into their intermediate end position 10 against the screen 9 of the baffle plate 8.
    The baffle plate 8 is positioned at a distance from the collecting plate 31 in order to create the suction gap 33 between the collecting plate 31 and the baffle plate 8. Particles are sucked through this suction gap 33, which due to their size do not fit through the sieve 9, but can still clog it.
    In the exemplary embodiment of the transport device 2 according to FIG. 2, the screen 9 and also the baffle plate 8 can be cleaned at certain time intervals by means of the previously mentioned blowing device 34 by emitting compressed air pulses against the transport direction of the bristle filaments 4 into their intermediate end position 10. The cleaning action of the blowing device 34 is supported by the vibrations of the baffle plate 8 and the sieve 9 caused by the vibration exciter 11. Particles adhering to the baffle plate 8 and the sieve 9 can be effectively loosened and suctioned off. In the meantime, it is expedient to close the housing opening 35 of the suction housing 19, for example with the collecting plate 31, in order to prevent particles whirled up by the blowing device 34 from escaping from the suction housing 19.
    The invention is concerned with improvements in the field of brush manufacturing. For this purpose, in particular, a method for providing bristle filaments 4 for the production of brushes is proposed. The bristle filaments 4 are drawn into an intermediate end position 10 against a sieve 9 of a baffle plate 8 by means of negative pressure. In order to avoid dirt or dust particles sticking to the sieve 9 or to free the sieve 9 from already adhering dirt or dust particles, the sieve 9 is at least temporarily, preferably during the suction of the bristle filaments 4 in
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    Vibration offset.
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    LIST OF REFERENCE NUMBERS
    Brush manufacturing machine
    transport device
    separating device
    Borstenfilament
    bristle bundles
    bristle magazine
    Transfer position
    flapper
    scree
    intermediate end
    Schwinganreger
    Holder frame first fabric layer / fabric plate second fabric layer / fabric plate
    Vibration transmission structure
    Bridge of 15
    Vibration transmitting member
    Vacuum source
    suction
    suction
    Valve
    Pressurized buffer
    dust filter
    Intake opening from 18
    Quick-change system
    transport line
    Hose age at 7
    Distal end of 26
    hose holder
    Frets intake
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    collection plate
    positioning
    suction gap
    blower
    Case opening from 19th
    Compressed air source
    Ausblastrichter
    pressure hose
    权利要求:
    Claims (12)
    [1]
    Expectations
    1. Transport device (2) for bristle filaments (4) with a baffle plate (8), which comprises at least one sieve (9), the transport device (2) being designed to counteract bristle filaments (4) by means of negative pressure in an intermediate end position to suck in the sieve (9), characterized in that the transport device (2) has a vibration exciter (11) with which the sieve (9) of the baffle plate (8) can be vibrated at least temporarily.
    [2]
    2. Transport device (2) according to claim 7, characterized in that the vibration exciter (11) is set up to vibrate the sieve (9) at least during the suction of the bristle filaments (4), and / or that the sieve (9 ) is formed from a fabric, in particular from a steel fabric and / or from a braid fabric and / or that the sieve (9) is impermeable to bristle filaments (4).
    [3]
    3. Transport device (1) according to claim 7 or 8, characterized in that the baffle plate (8) has a holding frame (12) on which the sieve (9) is arranged, and / or that the sieve (9) has at least one fabric plate (13, 14) and / or fabric layer (13, 14), preferably two fabric plates (13, 14) or fabric layers (13, 14) placed one above the other, in particular with a first fabric layer (13) in the direction of transport of the bristle filaments (4). is more closely meshed than the fabric layer (14) following in the transport direction.
    [4]
    4. Transport device (2) according to one of claims 7 to 9, characterized in that the baffle plate (8) has a vibration transmission structure (15) which is connected to the screen (9), and / or that the baffle plate (8) and / or the sieve (9)
    BE2018 / 5907
    26 is connected to the vibration exciter (11) via at least one vibration transmission element (17).
    [5]
    5. Transport device (2) according to one of claims 7 to 10, characterized in that the vibration exciter (11) is an ultrasonic oscillator (11) and / or that the transport device (2) for providing the vacuum has a vacuum source (18) which is at least indirectly connected to the baffle plate (8).
    [6]
    6. Transport device (2) according to claim 11, characterized in that the transport device (2) has a suction housing (19) in which the baffle plate (8) is arranged and which is connected to the vacuum source (18), preferably wherein the
    Intake housing (19) has a valve (21) with which
    Suction connection (20) to the vacuum source (18) can be closed.
    [7]
    7. Transport device (2) according to claim 11 or 12, characterized in that the vacuum source (18) via a vacuum buffer (22) is connected to the suction housing (19).
    [8]
    8. Transport device (2) according to one of claims 11 to
    13, characterized in that the transport device (2) has a dust filter (23) which is arranged between the vacuum source (18) and the baffle plate (8), preferably the dust filter (23) adjacent to or at a suction opening (24) the vacuum source (18) is arranged and / or the transport device (2) has a quick-change system for the dust filter (23) and / or a quick-change system (25) for the sieve (9).
    [9]
    9. Transport device (2) according to one of claims 7 to
    14, characterized in that the transport device (2) has transport lines (26) through which the bristle filaments (4)
    BE2018 / 5907 can be sucked in, preferably with transport lines (26) opening into bundle receptacles (30) of a collecting plate (31) which can be arranged or arranged between the transport lines (26) and the baffle plate (8).
    [10]
    10. Transport device (2) according to one of claims 7 to
    15, characterized in that the transport device (2) has a positioning device (32) with which a position of the baffle plate (8) in the suction housing (19) and / or a relative position of the baffle plate (8) to the transport lines (26) and / or can be changed to the collecting plate (31), in particular to create a gap (33) between the baffle plate (8) and the collecting plate (31) through which particles can be removed laterally that do not fit through the sieve (9).
    [11]
    11. Transport device (2) according to one of claims 7 to
    16, characterized in that the transport device (2) has a blowing device (34) for cleaning the sieve (9), preferably wherein the blowing device (34) has a compressed air source (36) and a discharge funnel (37) connected to the compressed air source (36). includes.
    [12]
    12. Brush manufacturing machine (1) with a transport device (2) according to one of claims 7 to 17.
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    同族专利:
    公开号 | 公开日
    BE1026044A1|2019-09-20|
    DE102018103880A1|2019-08-22|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    GB195481A|1922-01-24|1923-04-05|Arthur Efraim Silander|Improvements in brush-making machines|
    DE3920769A1|1989-06-24|1991-01-10|Fritz Rueb|Machine for producing bristle tufts|
    法律状态:
    2020-01-29| FG| Patent granted|Effective date: 20191223 |
    优先权:
    申请号 | 申请日 | 专利标题
    DE102018103880.1A|DE102018103880A1|2018-02-21|2018-02-21|Method of providing bristle filaments, transport device and brush making machine|
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