比利时专利BE1021370B1 DEVICE AND METHOD FOR PRODUCING ROUND BRUSHES

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专利摘要:
Device (1) for manufacturing round brushes (37) which have bristles (19) inserted between two wire parts (14) of the folded wire and twisted in a spiral shape, the device (1) having a feed device bristles (17) and a rotary gripper (13) for twisting the two wire parts (14) with the bristles (19) located between them. There is provided a rotary gripper (13) which can be linearly moved transversely to the longitudinal direction of the fed wire (3) and is intended to grip the bent region (12) of the wire (3) formed with a percussion element (10). .
公开号:BE1021370B1
申请号:E2012/0197
申请日:2012-03-21
公开日:2015-11-09
发明作者:Thomas Rees；Peter Steinebrunner；Fabian Matt；Grossmann；Markus Kaiser；Markus Wunderle
申请人:Zahoransky Ag；
IPC主号:

专利说明:

The invention relates to a device and a method for producing round brushes which have bristles implanted in a spiral between two parts of a folded wire, the device having a device for feeding bristles. and a rotary gripper for twisting two portions of yarn with the bristles located therebetween.
Such devices, in addition to the related manufacturing processes, are known in various embodiments. For example, EP 1 917 886 B1 discloses a method and a device in which bristles are fed between two parts of a previously folded wire, the wire parts are twisted in a first winding station up to that the bristles are held between the wire parts and the prefabricated brushes are bent in a second winding station to the desired degree of winding. This is however very complex because of the plurality of workstations. In addition, such a device is suitable only for smaller brushes such as mascara brushes, since for larger brushes with longer bristles the lining material can be expelled by the centrifugal force acting during twisting. . To minimize this effect, the lining material was heretofore maintained by an operator until the lining material is clamped between the wire portions when making large brushes. This requires a lot of exercise and experience on the part of the operator and represents an endangering of the operator since he must have his hands in the danger zone of the device during twisting. In addition, this manufacturing method is not safe and is only possible for brush dimensions operable by an operator.
However, for example, DE 10 2005 045 827 A1 or US 3,791,421 A discloses devices with which the packing material can be automatically inserted and twisted into a spiral shape between two wire parts. These devices nevertheless require to bring two separate parts of wire. As a result, both ends of the brushes must be treated after insertion and spiral twisting of the lining material and a certain distance between the leading end of the brush and the beginning of the bristle trim is required.
The problem therefore consists in providing a device and a method of the type mentioned at the beginning with which a round brush can be manufactured in a single workstation, which consists of a single wire and for which a trim of hair up to at the front end of the round brush is possible.
The solution according to the invention to this problem consists for the device in that there is provided a deflection device comprising two deflection rollers spaced from each other in the longitudinal direction of a wire brought, in that a rotary gripper is provided which can be linearly displaced transversely to the longitudinal direction of the fed wire and is intended to grip the folded area of the percussive wire with a percussion element displaceable between the deflection rollers transversely to the wire. longitudinal direction of the wire, in that there is provided a bristle feed device for feeding bristles to the folded portions of the wire in the region of the deflection rollers and in that it is provided in the region of each non-folded wire parts a device for braking the advancement of the wire.
The essential work steps, namely wire feeding, wire bending, feed of the pile lining material and twisting take place in a single workstation. Due to the bending of the yarn in the region of the deflection rolls and the subsequent feeding of the bristles into this region, it is possible to start the pile liner directly into the bending region of the yarn so that the liner can proceed. to the free end of the finished round brush. The twisting of the wire parts takes place by means of the rotary clamp immediately behind the deflection rollers on which the supply of bristles takes place. The lining material is therefore firmly held on the wire immediately after being fed so that the bristles can no longer be expelled by centrifugal forces. In this case, an operator is not necessary, which leads to an increased security of the process.
Due to the braking of the yarn in the region of the unfolded yarn portions, the yarn is held under tensile tension as the bristles are twisted and twisted and the yarn portions are tensioned in the insertion region and torsion in the form of spiral, so that the anti-extraction force of the bristles in the finished round brush is increased.
Due to the rotation of the rotary gripper and the twisting of the portions of wire bound thereto, the wire is pulled around the deflection rollers and the rotary gripper is linearly spaced from the deflection rollers. It is also possible that the rotary clamp is positioned by the pulling force of a tension spring and / or by a linear motor.
It may be appropriate for each of the deflection rollers to be associated with a twisting roller disposed spaced in the direction of the fed wire and a braking roller disposed between them in the feed direction of the wire and on the opposite side of the wire.
The wire runs, in this case, between the deflection roller and the twisting roller on the one hand and the braking roller on the other hand. This forms on the one hand a guide for the wire. On the other hand, the wire can be braked by a corresponding positioning of the braking roller subjecting the wire to a pressure.
In this case, it is appropriate that the deflection rollers can be respectively adjusted transversely to the direction of advancement of the wire and transversely to their axial direction. Depending on the positioning of the braking roller, the compressive force on the wire can vary and the braking force can be changed. The greater the braking force when inserting and twisting the bristles in a spiral shape, the greater the tensile force of the wire parts when inserting and twisting the bristles in a spiral shape. more is therefore the anti-extraction force for the bristles of the finished round brush.
During feeding of the yarn at the beginning of a brush-making cycle, the braking roller can also be held at a distance from the deflection roll and the twisting roller as an unimpeded passage of the yarn between the different rolls. is possible without being subjected to pressure.
The braking rollers can be respectively controllable and positionable via a control unit.
It is also possible for the braking rollers to be associated with measuring elements for measuring the tension of the wire which, in turn, are connected to the control device for controlling the advancement of the wire.
To optimize the advancement of the wire, there can be provided a feed device for the wire which is applied to one of the unfolded wire parts before one of the deflection rollers and which is in operative connection with a rotary sensor in the region of the other part of unfolded wire before the other deflection roll. The advancement of the other wire part driven by the feed device is controlled on the basis of the measurement values of the rotary sensor. As a result, a uniform advancement of the yarn on both sides towards the deflection rollers is ensured.
The feed device and the rotary sensor may be in operative connection with each other via the control device.
However, it is also possible that the rotary sensor is directly connected to an engine control of the advancement device. This allows quick and direct control of wire feed.
A preferred embodiment provides for the feed device to have a drive roller with a drive and a counter roller between which the wire can pass, the distance between the drive roller and the counter roller corresponding at least approximately to the diameter. of the thread during the advancement of the thread. This allows a simple and reliable advancement of the wire. It is also possible to feed and position the wire before the deflection rolls and along them at the beginning of the manufacturing process by means of the advancing device.
In this case, it is appropriate that the driving roller has a plurality of circular discs with different diameters arranged one behind the other in the axial direction and that it can be moved in the axial direction. As a result, the device can be quickly and easily adapted to different wire diameters by moving the driving roller.
The drive roller and the counter roller can be designed in particular concave on their running surfaces to ensure reliable transport of the wire.
Alternatively, the drive roller may be cylindrical and have on the circumferential side a plurality of grooves spaced from each other in the axial direction for wires of different size and being movable in the axial direction. The percussion element for bending the wire may be a bending plate that can be moved between the deflection rollers between a position striking the wire passing in front of the rotary gripper and brought closer to the rotary gripper and a rest position recessed by report to this one. This allows a corresponding flat folding of the wire to form a flat brush end. The percussion element can however also be a gripping finger disposed on the rotary clamp and can be linearly moved with the rotary clamp. This can first be disposed on the side of the wire opposite to the rotary gripper and then be pushed towards the rotary gripper so that the gripping finger pulls the wire towards the rotary gripper and folds it in doing so. Behind the gripping finger, the wire can continue to be folded until the two portions of wire for receiving the bristles are brought closer to each other to hold the bristles so that an eyelet is formed in the region of the finger grip. In this case, the shape of the eyelet can be determined by the outer contour of the gripping finger. A round eyelet, an oval eyelet or a triangular eyelet may for example be formed.
It is also possible that the percussion element has a housing for a functional element striking the wire. This functional element is partially surrounded by the wire during folding and thus remains on the wire after removal of the finished round brush, which makes for example a handle or also a protective element of the head side is formed.
A preferred embodiment provides that the deflection rollers can be moved transversely to the longitudinal direction of the folded wire portions between a bending position for positioning the percussion member and a twisting position closer to one another. 'other. The deflection rollers may initially be spaced from each other so that the percussion element can pass reliably between them to bend the wire. Finally, after moving the percussion element away, the deflection rollers are moved toward each other, so that the folded wire portions are further apart from one another so that they are kept so close to one another that the bristles can be clamped together and are already held tight immediately after being fed.
It is possible that prefabricated wires that have been cut to the length required for the manufacture of a round brush are fed to the device.
A preferred embodiment, however, provides that a spool of thread is provided as a supply of thread for the thread to be conveyed. The manufacturing process is thereby further simplified since no upstream device is needed to cut the wires to length. The wire is unwound from the wire spool to the required length and passes in front of the rotating pliers. The free end of the wire passing in front of the rotary gripper is then brought in the opposite direction to the rotary gripper during the twisting of the wire parts.
In particular for the wire feed of a wire spool, the use of a feed device previously described for the wire can be useful to satisfy the force required to unwind the wire of the wire coil. thread.
When large round brushes are to be made and the space does not permit straight feeding of the free end of the wire, it is appropriate that a deflection unit be provided for the free end of the lead fed. The wire is then deflected according to the spatial data, the deflection can take place by means of deflection rollers or a hollow guide, in particular of round section, through which the wire can pass.
To eliminate bends of the unwound wire from the spool of thread and to ensure that the thread is brought into the region of the deflection rolls in rectilinear form, it may be provided in the direction of travel of the thread, behind the spool of thread. wire, at least one straightening apparatus provided with a plurality of guide rollers disposed on both sides of the wire for aligning the wire. It is also possible to provide two straightening devices arranged in a 90 ° offset relation to each other in the circumferential direction to ensure that the wire is oriented rectilinearly in all dimensions.
If the free end of the wire is deflected, it is also possible to provide in the region of the free end of the wire, between the deflection roller and the deflection unit, one or more straightening apparatus for bringing the wire into alignment. straight.
To automatically cut the thread fed from the spool of thread when it reaches the required thread length and to avoid manual intervention by an operator, it is appropriate that a cutting device is provided to cut the wire brought into from the spool of thread.
So that the bristles are better held in the area of the deflection rollers during the transfer of the bristle feed device to the wire parts and to prevent the liner from slipping off during the transfer of the bristle feed device to the parts of wire, it is advantageous that the deflection rollers have teeth to receive spiral twisted hairs. The bristles are then securely held in the teeth during transfer and secured against evasion.
It is appropriate that a clip is provided to grip the free ends of the wire after the spiral twist of the bristles. When feeding the yarn from the yarn package, the gripping can take place after the cutting of the fed yarn. The round brush can be held at the free ends with the pliers and the bristle pad can continue to be spirally twisted by rotating the rotary pliers to further improve the holding of the bristles and / or to increase the bristle density in the bristle. longitudinal direction of the brush.
In this case, the clamp can rotate in the opposite direction to the rotary gripper to improve the spiral-shaped twist action.
It is appropriate that a separating device is provided to separate the wire free ends of the round brush. These free ends which are still arranged before the deflection rollers and thus deviate transversely to the longitudinal direction of the brush are generally not desired and can thus be eliminated in a simple manner.
The separation device can in this case be designed as a cutting device. It is also possible that the separating device is designed to grip the yarn and twist it in this region, the yarn being twisted until it breaks at the point of rotation. In addition, the separating device may be applied to the wire with high pressure in the gripping region or may also have notch noses that cut the wire to simplify and speed up wire breakage.
Another refinement of the invention provides that a transfer device is provided for transferring the round brush to a post-processing device.
For example, posttreatment is possible: profiling the hairs (in height - in depth, in the form of a circle - star, asymmetrically), melt the ends of hair, polish or round the ends of hair, apply objects on the twisted wire parts, for example a handle, an anti-scratch protection or a connecting eyelet. It is also possible to fold the folded end of the wire or to wind a small rosette on this end of the round brush so that the gasket also protrudes beyond the end of the brush in the longitudinal direction of the brush. round brush. Such brushes can be used, for example, as bottle brushes with which the bottom of the bottles can also be cleaned.
The bristle feeder may preferably have a transport means for transporting the bristles in the area of the deflection rollers.
In this case, the transport means may be, for example, a transport chain or a belt or a belt.
This allows the bristles to be portioned in the region of the deflection rollers where they are spirally twisted between the wire portions.
The bristle feeding device may further comprise a material box comprising a stock of bristles in which tufts of bristles may be removed with a bristle divider and fed to the transport means. This allows automatic material feeding and continuous operation of the device. Various pile material which has been mixed according to the desired mixing ratio before being placed in the material box may be provided in the material box. However, it is also possible for one or more material separators to be arranged in the material box, which separators keep the different pile materials separated from each other, for example different color material or bristles with surface characteristics. different or different materials, and the materials are taken from the box of material by the bristle divider depending on the desired lining. The use of several boxes of material in which pile material would be taken alternately is also possible.
Alternatively, the hair supply device may have at least one roller with pile material and a lengthening device and a transfer unit for transferring the bristles to the transport means. The bristles are then rolled directly from a roll, set to length and transferred to the transport means in the device.
It is appropriate that the bristle feeder can be positioned between a transfer position disposed in the region of the deflection rolls and a standby position recessed therefrom. To bend the yarn at the beginning of the manufacturing process as well as to finish and pick the round brush after lining with pile material, the bristle feeder may be disposed spaced from the region of the deflection rollers to maintain free this region for the percussion element or the clamp or a transfer device. During the hair supply, however, the bristle feeder can be placed directly against the deflection rollers. The advancement of the thread is carried out by the advancing device on the one hand and a self-induced advancement movement of the rotary gripper takes place during the twisting of the thread on the other hand. However, it is also possible that the rotary gripper has a linear drive connected to the controller. Upon spiral twisting of the pile liner, the round brush can be actively moved away from the deflection rollers by this linear drive, so that the processing speed of the device can be increased. The linear drive is then preferably connected to the control device for adjusting the pulling force of the rotary clamp relative to the height of the braking force of the twisting rollers.
In addition or alternatively to the linear drive, the rotary clamp may also be positioned by the pulling force of a tension spring and spaced from the deflection rollers.
Funnel-shaped bushings may be provided before and after the deflection rollers to facilitate feed of the wire when positioning the wire with the deflection device.
Similarly, glasses can be provided on the positioning path of the wire to support the wire, which is useful in particular in the presence of long parts of wire for the manufacture of large and long round brushes.
With regard to the method, the invention is characterized in that a wire is disposed in front of a rotary clamp, a portion of the wire being disposed on each of the two sides of the rotary clamp, in that the wire is bent in the region of the rotary gripper for forming two wire portions extending approximately parallel to each other and is fed through deflection rollers to and gripped by the rotary gripper, in that the deflection rollers are brought closer to each other after the bending of the wire and the wire parts are thereby pushed further towards each other, in that in the region of the deflection rollers, hairs are fed to the folded wire portions, extending at least approximately parallel to each other and the wire portions are bent with the rotary clamp and in that the unfolded wire portions are braked upon twisting the wire.
This results in the advantages already described in the explanation of the device according to the invention.
It may be appropriate for a feed control of one of the wire parts located before the deflection rollers to take place during spiral twisting of the bristles as a function of the advancing speed of the other part of the wire. thread.
A preferred embodiment provides that for the formation of the wire portions disposed on both sides of the rotary tong, wire is unwound from a wire spool on one side of the rotary tong as it passes on the other side of the rotary gripper such that the portion of wire disposed on the opposite side of the wire coil corresponds approximately to the length of the round brush to be made or is longer to compensate for the shortening of the wire during twisting. This allows brush making in a single operation without having to first make yarns to the required length according to the circumstances. The invention also relates to a round brush with spirally inserted and twisted bristles between two wire portions of a folded wire. According to the invention, the round brush has in the wire bending region a functional element captively connected to the wire during bending of the wire. This functional element may be, for example, a handle or a protection element.
The device according to the invention and the method will be described in more detail below on the basis of the drawings.
It is shown, in part diagrammatically, in FIG. 1 a device for making round brushes at the beginning of the manufacturing process, FIG. 2 the device of Figure 1 during the bending of the wire, FIG. 3 the device of Figure 2 after folding the wire, FIG. 4 the device according to Figures 1 to 3 at the beginning of the twisting of bristles, FIG. 5 a device similar to that of Figure 1 with a rotary clamp as a percussion element, FIG. 6 the device of Figure 5 after folding the wire, FIG. 7 a device similar to that of Figure 1 with a functional element on the percussion element, FIG. 8 the device of Figure 7 after folding the wire, FIG. 9 a detailed representation of the packing region of the device during the insertion and spiral twist of the bristles, FIG. A detailed representation after complete lining with bristles, FIG. 11 in FIG. 13 further processing steps after twisting the bristles between the wire parts.
A device designated in its entirety by 1 for the manufacture of round brushes 37 has according to Figure 1 a spool of thread 2 with a thread 3 which is unwound from the spool of thread 2 and fed through two deflection rollers 4 in the region of a deflection device 5. In a first step, the wire 3 is unwound until the free end of the wire 3 is positioned as part of wire 6a having exceeded the deflection device 5. Of this In this way, the wire parts 6a, 6b of the unwound wire 3 are respectively above and below the deflection device 5. The wire part 6a which forms the free end of the wire 3 is, in this case, approximately as long as the round brush 37 to manufacture or somewhat longer to compensate for the shortening in the main longitudinal direction during twisting. When the free wire portion 6a is longer than the space available, the wire 3 can be guided through a deflection unit 7 which is configured in the figures as a hollow guide in the form of a circle segment and thereby folded so that the wire 3 can be unwound over a greater length.
There is provided on both sides of the deflector 5 a straightening apparatus 8 with a plurality of guide rollers 9 arranged on both sides of the wire 3 to rectilinearly align the wire portion 6a unwound from the wire spool 2 or bent by the deflection unit 7 and, as will be explained below, out of it. It is also possible to provide several straightening devices 8 arranged one behind the other and offset by 90 ° relative to each other in the peripheral direction of the wire to rectilinearly align the wire 3 in all dimensions. If the free wire portion 6a is not guided and deflected by the deflection unit 7, the straightening apparatus 8 associated with the deflection unit 7 can be dispensed with. On the other hand, the guide rollers 9 of the straightening apparatus 8 associated with the deflection unit 7 may be further spaced from each other when feeding the wire 3 (Figure 1) so that they do not act first. on the wire 3 and that the supply of the wire which is still aligned rectilinearly is simplified.
After unwinding the wire 3 of the wire spool 2 to the required length, the wire 3 is struck by a percussion element 10 and is bent between two deflection rolls 11 of the deflection device 5 (Figure 2). The deflection rollers 11 can be moved towards each other, as indicated by the arrows Pf1 in FIG. 1, in the longitudinal direction of the wire 3 and can be positioned according to FIG. 2 in a bending position for folding the 3. The folding region 12 of the wire 3 is gripped by a rotary gripper 13 and after the removal of the percussion element 10, the deflection rollers 11 are brought closer to each other and brought into a position. twisting device (Fig. 3) in which the wire portions 14 of the wire 3 which are folded and extend approximately parallel to each other are closely juxtaposed and the bristle material to be fed can be held together.
In the region of the deflection rollers 11, there is provided a twisting roller 15 disposed near each of them in the longitudinal direction of the wire and a braking roller 16 disposed on the other side of the wire 3 between the deflection roller 11 and the twisting roller 15. The twisting rollers 15 and the braking rollers 16 can respectively be moved together with the deflection roller 11 concerned in the longitudinal direction of the wire and the braking rollers 11 can be furthermore displaced transversely to the longitudinal direction of the wire (arrow Pf2, Figure 1) to be able firstly to bring the wire 3 (Figure 1) or to act on the wire 3 during the bending of the wire 3 and when twisting the material of trim (Figures 2 to 6).
After removal of the percussion member 10, a bristle feeder 17 is brought into the region of the deflection rollers 11 (Fig. 4). The hair supply device 17 has a transport chain 18 as a means of transport for bristles 19 which can be taken from a box of material 21 with an arcuate divider 20 moving along a counterpart 44 and placed on the transport chain 18. During transport on the transport chain 18, the bristles 19 are held in a defined position with a holding plate 22 and a device exerting a force downwards 23.
The material box 21 contains different types of bristles which are kept separated from one another by a material separator 42. When hairs are taken with the arc divider 20, hairs of both types are taken together, the ratio for mixing the types of bristles that can be modified by positioning the material separator 42. With a bristle pusher 43 which acts on the bristles in the material box 21, it is ensured that the bristles 19 are ready on the picking side of the bristle. box of material 21.
In the region of the deflection rollers 11, the bristles 19 are fed between the deflected yarn portions 14, are grasped by them and are clamped therebetween. As a result, the bristles 19 are securely held directly after transfer of the transport chain 18 and centrifugal expulsion of the lining during twisting is avoided. The bristles 19 are fixed between the wire portions 14 which are twisted by the rotational movement of the rotary gripper 13. Due to the twisting of the wire portions 14, the wire portions 14 guided between the supports for the deflection rolls 11 are offset to the left with the rotary clamp 13. The rotary clamp can also be pulled to the left by a not shown tension spring and / or this linear movement of the rotary clamp can be assisted by a linear drive which is not no longer represented. The advancement of the wire is further assisted by a feed device 24 which is applied to the wire 3 before the deflection rollers 11 and pushes the latter towards the deflection device 5. In order that the two parts of wire 6a, 6b move uniformly, the advancement of the free end 6a of the wire is measured with a rotary sensor 25. The rotary sensor 25 is connected to a servo regulator 26 of a control device 27. The control device 27 can be a regular PC that also controls other pneumatic or electronic components that are provided on the device 1 and can again communicate with each other. But the servo regulator 26 for the rotary sensor 25 can also communicate directly with a servomotor control 45 which controls the feed device 24 so that the control device 27 is bypassed, which allows a faster regulation of the feed device. 24.
According to the signals of the rotary sensor 25, the drive 28 of the feed device 24 is controlled by the control device 27 or by the servomotor control 45. This allows a controlled uniform advance of the wire 3 and consequently a torsion in spiral shape of the bristles 19, whereby a centrifugal expulsion of the lining material is reliably prevented even at high working speeds and for long hairs.
The feed device 24 has a drive roller 30 driven by the drive 28 and a counter roller 31 acting on the wire 3 from the opposite side.
Similarly, a counter-roller 32 is associated with the rotary sensor and the wire 3 is guided between them, the rotary sensor 25 and the counter-roller 32 acting on the wire 3 to reliably detect its forward movement.
The braking rollers 16 are arranged during spiral twisting of the lining material so as not only to guide the wire 3 but also to exert a force thereon and consequently to brake it. This allows a particularly good control of the progress of the wire. In this case, it is also possible to measure the tension of the wire with the braking rollers 16, in particular with the braking roller 16 before the deflection device 5, and to control the advancement of the wire through the device. of progress according to the tension of the thread. The braking action can be influenced by varying the force exerted on the wire 3 by the braking rollers 16, so that the tensile force on the folded wire portions 14 during the spiral twist of the The bristles change and the anti-extraction force of the bristles 19 in the finished round brushes 37 can be influenced. The greater the braking force exerted by the braking rollers 16, the greater the tensile stress on the folded wire portions 14 and the greater the anti-extraction force of the finished round brush 37 is high.
In the yarn advancement direction behind the feed device 24, there is provided a cutting device 33 with a blade 34 for severing the yarn 3 when the desired length has been unwound from the yarn spool 2. After cutting the wire 3 with the blade 34, the wire 3 can continue to be twisted by rotation of the rotary clamp 13 and can therefore continue to be moved to the left, other bristles 19 can also be implanted and twisted into shape of spiral. The implantation and the spiral-shaped torsion of the bristles 19 between the deflected wire portions 14 is also clearly visible in the detailed representation according to FIG. 9. It is also shown that the deflection rollers 11 have teeth which fix the bristles 19 during the transfer of the transport chain 19 and prevent centrifugal expulsion.
According to Fig. 10, the bristle feeding device 17 is brought back and the free ends of the wire continue to be twisted to form a brush handle until the ends of the wire 3 are arranged approximately in the region of the bristles. deflection rollers 11. Next, the end region of the wire 3 is grasped by a wire retainer 29 so that the twisted wire portions 14 are held together with the bristle between the rotary clamp 13 and the retainer. wire 29 (FIG. 11). As a result, the deflection rolls 11 and the braking rollers 16 of the deflection device 5 can move apart from each other and release the wire (FIG. 12).
The free ends of the wire may then be gripped by another clip 35 and the round wire of the brush may, if necessary, continue to be twisted to further increase the strength of the pile pad. In this case, the clamp 35 can also be designed as a rotary clamp which can rotate in the opposite direction to the rotary clamp 13.
According to Figure 13, the folded free ends of the wire are severed with a disconnecting device, for example a wire disconnector. The round brush which has been twisted may, if necessary, be brought to a post-treatment device, for example to profile, melt, polish or round the hair ends.
In the device 1 according to Figures 5 and 6, the percussion element 10 is formed by a gripping finger 38 disposed on the rotary clamp 13 and connected to the rotary clamp 13. The gripping finger 38 is positioned before feeding in wire 3 as shown in Figure 5 so that after the supply of the wire 3, it is disposed between the gripping finger 38 and the rotary clamp 13. The wire is pulled between the deflection rollers 11 by displacement gripping finger 38 towards the rotary gripper 13. Then, the deflection rollers 11 are brought closer to each other (FIG. 6) so that the wire 3 forms an eyelet in the folding region due to the fact that grasping finger 38.
In the device 1 according to Figures 5 and 6, the gripping finger 38 is cylindrically designed with a circular cross section to form a round eyelet. But the gripping finger may also have another shape to form a corresponding eyelet, for example oval or triangular.
The gripping finger can also be made in two parts with two subsections which are arranged, in terms of the plane of the drawing in Figure 5 and 6, before and after the wire 3 and together form the total gripping finger.
In the device 1 according to Figures 7 and 8, the percussion element 10 has a housing for a functional element 39. In this case, the wire 3 is guided through a recess 40 of the functional element 39 so that, when the percussion element 10 is pushed to the left, a part of the functional element 39 is surrounded by the wire 3 and the functional element 39 is connected in a captive manner to the wire 3. The functional element 39 can, by For example, being a plastic handle or guard which is thus permanently retained on the finished round brush and release of the functional element is practically excluded.
There may be provided an unrepresented magazine which is intended to keep the functional elements 39 ready and from which a functional element 39 can automatically be brought to the percussion element at the beginning of a brush-making cycle.
In the devices 1 according to FIGS. 1 to 8, introduction hoppers 41 may be provided to simply bring the wire 3 to the desired position.
During the first supply of thread 3 from the spool of thread 2, it can initially be brought manually to the advancement device 24. The subsequent advance of the thread 3 until the spool the free end of the wire 3 protrudes beyond the deflector 5 of the required length can be effected via the feed device 24. Similarly, another wire material can, after cutting with the cutting device 33 and the finish of a round brush, be pushed forward with the aid of the feed device 24 to initiate the next production cycle.
If the unwinding of the wire 3 of the wire spool 2 is possible with a lower force input, it may also be possible to omit the use of the feed device 24 during the implantation and the spiral-shaped torsion of the bristles.

权利要求:
Claims (32)
[1]
1. Device (1) for manufacturing round brushes (37) which have between two wire parts (14) of a folded wire bristles (19) implanted and twisted spirally, the device (1) having a device bristle feeder (17) and a rotary tong (13) for twisting the two wire parts (14) with the bristles (19) situated between them, characterized in that a deflection device (5) is provided comprising two deflection rollers (11) spaced apart from one another in the longitudinal direction of a thread (3) provided, in that there is provided a rotary clamp (13) which can be linearly displaced transversely to the longitudinal direction of the wire (3) fed and is intended to grip the folded region (12) of the wire (3) formed by percussion with a percussion element (10) movable between the deflection rollers (11) transversely to the direction longitudinal of the wire, in that a device for feeding hair is provided (17) for bringing the bristles (19) to the folded wire portions (14) in the region of the deflection rollers (11) and in that it is provided in the region of each of the wire portions (6a, 6b) not folded a device for braking the advancement of the wire.
[2]
2. Device according to claim 1, characterized in that each of the deflection rollers (11) are associated with a twisting roller (15) arranged spaced in the direction of the wire (3) brought and a brake roller (16) arranged between them in the feed direction of the wire and on the opposite side to the wire (3).
[3]
3. Device according to claim 2, characterized in that the braking rollers (16) can respectively be moved transversely to the direction of advancement of the wire and transversely to their axial direction.
[4]
4. Device according to claim 2 or 3, characterized in that the braking rollers (16) can be respectively controlled and positioned via a control unit (27).
[5]
5. Device according to any one of claims 1 to 4, characterized in that there is provided a feed device (24) for the wire (3) which engages with a (6b) non-wire parts. folded before one of the deflection rollers (11) and which is in operative connection with a rotary sensor (25) in the region of the other non-folded wire portion (6a) before the other deflection roll (11).
[6]
Device according to claim 5, characterized in that the feed device (24) and the rotary sensor (25) are in operative connection with one another via a control device (27). ).
[7]
7. Device according to claim 5, characterized in that the rotary sensor (25) is connected to a motor control of the advancement device (24).
[8]
8. Device according to any one of claims 5 to 7, characterized in that the feed device (24) has a drive roller (30) provided with a drive (28) and a counter roller (31) between which the wire (3) can pass, the distance between the driving roller (30) and against-roller (31) corresponding at least approximately to the diameter of the wire during the advancement of the wire.
[9]
9. Device according to claim 8, characterized in that the drive roller (30) has a plurality of circular discs of different diameters arranged one behind the other in the axial direction and can be moved in the axial direction.
[10]
10. Device according to claim 8, characterized in that the drive roller (30) is designed cylindrical and has on the peripheral side a plurality of grooves spaced apart from each other in the axial direction for son of different thickness and can be moved in the axial direction.
[11]
11. Device according to any one of claims 1 to 10, characterized in that the percussion element (10) is a folding plate which can be moved between the deflection rollers (11) between a folding position striking the wire (3) passing in front of the rotary clamp (13) and close to the rotary clamp (13) and a rest position set back from it.
[12]
12. Device according to any one of claims 1 to 10, characterized in that the percussion element (10) is a gripping finger (38) disposed on the rotary clamp (13) and linearly displaceable with the rotary clamp ( 13).
[13]
13. Device according to any one of claims 1 to 10, characterized in that the percussion element (10) has a housing for a functional element (39) striking the wire (3). Apparatus according to one of Claims 1 to 13, characterized in that the deflection rollers (11) can be moved transversely to the longitudinal direction of the folded wire portions (14) between a folding position for the positioning of the percussion element (10) and a twisting position where they have on the other hand closer to each other.
[15]
15. Device according to any one of claims 1 to 14, characterized in that there is provided a spool of wire (2) as a reserve of wire for the wire (3) to bring.
[16]
16. Device according to any one of claims 1 to 15, characterized in that there is provided a deflection unit (7) for the free end of the wire (3) brought.
[17]
Device according to one of Claims 1 to 16, characterized in that at least one straightening apparatus (8) is provided in the direction of travel of the thread behind the thread spool (2). a plurality of guide rollers (9) disposed on both sides of the wire for aligning the wire (3).
[18]
18. Device according to any one of claims 1 to 17, characterized in that there is provided a cutting device (33) for cutting the wire (3) brought from the coil of wire (2).
[19]
19. Device according to any one of claims 1 to 18, characterized in that the deflection rollers (11) have teeth to receive the bristles (19) to be implanted and twist spiral.
[20]
20. Device according to any one of claims 1 to 19, characterized in that there is provided a clamp (35) for gripping the free ends of wire after the spiral twist of the bristles (19).
[21]
21. Device according to claim 20, characterized in that the clamp (35) can rotate in opposite direction to the rotary clamp (13).
[22]
22. Device according to any one of claims 1 to 21, characterized in that there is provided a separating device (36) for separating the free ends of wire from the round brush (37).
[23]
23. Device according to any one of claims 1 to 22, characterized in that there is provided a transfer device for transferring the round brush (37) to a post-processing device.
[24]
24. Device according to any one of claims 1 to 23, characterized in that the hair supply device (17) has a transport means for transporting the bristles (19) in the region of the deflection rollers (11). .
[25]
25. Device according to claim 24, characterized in that the transport means is a transport chain (18), a belt or a band.
[26]
26. Device according to any one of claims 1 to 25, characterized in that the bristle feeding device (17) has a box of material (21) comprising a stock of bristles in which bristles (19) can be taken with a hair divider and brought to the means of transport.
[27]
27. Device according to any one of claims 1 to 26, characterized in that the bristle feeder (17) has at least one roller with bristle material and a lengthening device and a unit transfer to transfer the bristles to the means of transport.
[28]
28. Device according to any one of claims 1 to 27, characterized in that the bristle feeder (17) can be positioned between a transfer position disposed in the region of the deflection rollers (11) and a position waiting in withdrawal from this one.
[29]
29. Device according to any one of claims 1 to 28, characterized in that the rotary clamp (13) has a linear drive connected to the control device (27).
[30]
30. A method of manufacturing round brushes (37) wherein bristles (19) are inserted between spiral-shaped yarns or portions of yarn and twisted, characterized in that a yarn (3) is disposed in front of a gripper. rotary member (13), a wire portion (6a, 6b) of the wire (3) being disposed on each of the two sides of the rotary tong (13), in that the wire (3) is bent in the region of the tongs rotary device (13) for forming two wire parts (14) extending approximately parallel to each other and is fed through deflection rollers (11) to the rotary gripper (13) and seized by the latter, in that the deflection rollers (11) are brought closer to each other after the bending of the wire (3) and the wire parts (14) are thereby further pushed towards each other. the other, in that in the region of the deflection rollers (11), bristles (19) are fed to the folded wire portions (14), extending at least approximately approximately parallel to each other and the wire parts (14) are bent with the rotary clamp (13) and in that the unfolded wire parts (6a, 6b) are braked when twisting the wire (3). ).
[31]
31. The method of claim 30, characterized in that a feed control of a (6b) of the wire parts located before the deflection rollers (11) takes place during the spiral twist of the bristles ( 19) according to the speed of advancement of the other part of wire (6a).
[32]
32. The method of claim 30 or 31, characterized in that for the formation of the wire parts (6a, 6b) arranged on both sides of the rotary clamp (13), wire (3) is unwound from a coil of wire (2) from one side of the rotary clamp (13) past the latter to the other side of the rotary clamp (13) so that the wire portion (6a) disposed on the opposite side to the the spool of thread (2) corresponds approximately to the length of the round brush (37) to be made or is longer to compensate for the shortening of the thread during twisting.
[33]
33. Round brush provided with bristles inserted between two parts of wire of a bent wire and twisted into a spiral shape, characterized in that a functional element is provided in the bending region (12) of the wire (3). (39) captively connected to the wire (3) when folding the wire (3).

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同族专利:

公开号 | 公开日

CN102687950B|2015-08-19|

US8915551B2|2014-12-23|

DE102011015060B4|2015-07-30|

TWI556768B|2016-11-11|

CN102687950A|2012-09-26|

ITMI20120445A1|2012-09-25|

US20120240347A1|2012-09-27|

TW201302126A|2013-01-16|

DE102011015060A1|2012-09-27|

KR101989623B1|2019-09-30|

KR20120109318A|2012-10-08|

引用文献:

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法律状态:

优先权:

申请号 | 申请日 | 专利标题

DE102011015060.9A|DE102011015060B4|2011-03-24|2011-03-24|Apparatus and method for producing round brushes|

DE102011015060923|2011-03-24|

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