比利时专利BE1026190B1 Method for the stepwise conveying of at least one filament strand, conveying device and device for p

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专利摘要:
The invention is concerned with improvements in the art of making brushes and / or paintbrushes. For this purpose, in particular the conveying device (2) is proposed. This serves to advance a filament strand (5) stepwise in a conveying direction. For this purpose, the conveying device (2) has the first clamping device (4) and the second clamping device (14). By means of the first clamping device (4) the filament strand (5) is clamped and thereby moved and moved by a movement of the first clamping device (4) in the conveying direction of the filament strand (5) and optionally withdrawn from a Filamentstrangspule (13). Subsequently, the filament strand (5) by means of the second clamping device (14) is clamped and gripped and moved by a movement of the second clamping device (14) in the conveying direction of the filament strand (5) a piece. By means of the second clamping device (14), the filament strand (5) can be introduced, for example, into the filament receptacle (7) of a bristle carrier (6)
公开号:BE1026190B1
申请号:E2019/5028
申请日:2019-01-17
公开日:2019-11-04
发明作者:Florian Kiefer；Ingo Kumpf；Marc König
申请人:Zahoransky Ag；
IPC主号:

专利说明:

Method for the gradual conveying of at least one filament strand, conveying device and device for producing brushes and / or brushes
The invention relates to a method for the gradual conveying of at least one filament strand in a conveying direction, a conveying device for the gradual conveyance of at least one filament strand in a conveying direction and a device for producing brushes and / or brushes which has such a conveying device.
Depending on the application, brushes and brushes are equipped with filament bundles consisting of strong or fine filaments.
In particular with brushes or brushes that are used for cleaning purposes, strong and thus rigid filaments are generally used to produce the filament bundles. In the case of brushes or brushes which are used to apply lacquer or paint, filaments are generally used to produce the filament bundles, which are significantly finer than the filaments of such brushes or brushes which are used for cleaning purposes. Various manufacturing processes are available for producing cleaning brushes, in particular toothbrushes. For example, it is known to anchor the filament bundles in a bristle carrier of the brush with the aid of an anchor or bundle anchor. This is done with a tamping tool. Furthermore, it is known to fix filament bundles to an bristle carrier without such an anchor. For this purpose, the filaments of a filament bundle are welded to one another at one end, for example, and then fastened to a bristle carrier by extrusion coating. This type of brush production is also summarized under the generic term anchorless technology.
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So far, it has not been possible to use anchorless technology in the manufacture of brushes or brushes that have filament bundles made of finer filaments.
While it is customary and also possible in the anchorless production of brushes or brushes, in which stronger filaments are used, the filament bundles are inserted into a bristle holder, for example with push pins, and compressed if necessary, using such push pins fine filaments have so far not been successful with a satisfactory result. Especially when the production is to be operated with a short cycle time, the use of push pins to introduce the filament bundles into a bristle carrier often leads to blockages which make the production process uneconomical.
Filament bundles of fine filaments do not seem to be sufficiently stiff to be able to be pushed into a bristle holder with push pins with a short cycle time. For this reason, the industrial production of brushes or brushes, such as nail polish brushes, in which particularly fine filaments are used, is generally still carried out using anchor technology.
The object of the invention is therefore to provide a method for the gradual conveying of at least one filament strand, a conveying device, and a device for the production of brushes and / or brushes of the type mentioned at the outset, with which the anchorless production of brushes and / or brushes which are associated with Filament bundles to be assembled from fine filaments is simplified.
To solve this problem, a method for the gradual conveying of at least one filament strand is first proposed, which
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Means and features of the independent claim directed to such a method. In particular, in order to achieve the object in the method for the gradual conveying of at least one filament strand, it is thus proposed that the at least one filament strand be clamped and gripped by a first clamping device, and then to some extent by moving the first clamping device in the conveying direction of the filament strand with the first clamping device moved in the conveying direction and, if necessary, pulled off a filament strand bobbin, then clamped with a second clamping device and thereby gripped and then moved further in the conveying direction by movement of the second clamping device.
With the aid of the first and second clamping devices, at least one filament strand can be pulled off step by step, for example from a filament strand bobbin, and conveyed step by step in the conveying direction. The conveying of the at least one filament strand in the conveying direction with the second clamping device can be used to insert a filament strand consisting of fine filaments into a filament holder of a bristle carrier. The two clamping devices support and stabilize the filament strand made of fine filaments to such an extent that blockages or problems which would arise when using push pins if fine filaments are to be conveyed can be avoided. In addition, the at least one filament strand can essentially be drawn by the method, which helps to prevent the fine filaments from buckling and thus preventing the filament strand from being conveyed.
Especially when the filament strand is conveyed directly into a filament holder of a bristle carrier, it is possible to use the method according to the invention for the gradual conveyance of at least one filament strand, brushes and / or brushes, in particular nail polish
BE2019 / 5028 brushes that have filament bundles made of very fine filaments without using fastening anchors.
It may be advantageous if the second clamping device is open while the filament strand is moving with the first clamping device, in particular being pulled off the filament strand spool. The at least one filament strand can thus be alternately clamped and gripped with the first and second clamping device and moved in each case step by step in the conveying direction and, in particular, further pulled off the filament strand spool.
Furthermore, it is possible for the at least one filament strand to be clamped with a third clamping device before it is moved in the conveying direction with the first clamping device and, if appropriate, is pulled off the filament strand spool. This third clamping device can be movable in and against the conveying direction of the filament strand and can be arranged upstream of the first and / or the second clamping device in the conveying direction. While the at least one filament strand is moved with the first clamping device and in particular is pulled off the filament strand spool, a restoring force which is oriented counter to the conveying direction of the at least one filament strand can act on the third clamping device. It is thus possible to tension and hold the at least one filament strand while moving it in the conveying direction with the first clamping device and pulling it off the filament strand spool. In this way, the at least one filament strand is conveyed with a certain tension and, if necessary, pulled off the filament strand spool, which is particularly advantageous in the case of very fine filament in order to avoid kinking or sagging or damage to the filaments which form the at least one filament strand ,
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After the second clamping device has clamped the at least one filament strand, the third clamping device can be opened again. While the second clamping device subsequently clamps the at least one filament strand and thereby grips it, both the first and the third clamping device are open, so they have released the at least one filament strand again, so that it is movable relative to the first and third clamping device. This makes it possible to push the filament strand a further distance in the conveying direction with the aid of the second clamping device without stopping the filament strand by the first or third clamping device.
By clamping the at least one filament strand with the aid of the third clamping device, which is preferably arranged between a filament strand spool from which the at least one filament strand can be drawn off, and the second clamping device, faults can be caused by filaments which may be somewhat longer or also sag or buckle. Avoid that can occur between the filament strand bobbin and the second clamping device. With the help of the tension applied to the at least one filament strand, which can be generated in the interaction of the first with the third clamping device, the filaments of the at least one filament strand, which may have different lengths, can be tightened and differences in length can be compensated for to a certain degree. Overall, the feeding of the at least one filament strand thus becomes more reliable, which can ultimately also have a positive effect on the production of a brush and / or a brush, in which the method is used.
In order to adapt the cross-section of the at least one filament strand to the cross-section that a filament bundle will later have on the bristle holder of a brush or a brush
BE2019 / 5028, it can be expedient if a cross section of the at least one filament strand is changed with the first, second and / or third clamping device. Furthermore, it is possible to guide the at least one filament strand through a compressor element, for example a funnel, which is arranged behind the first clamping device in the conveying direction and which changes a cross section of the at least one filament strand, in particular allowing the filament strand to be compressed. It may be expedient if an outlet cross section of the aforementioned compressor element corresponds to the cross section that a bundle of filaments separated from the filament strand should have later on a bristle holder of a brush or brush and / or that has a filament holder of a bristle holder into which the Filament bundle is to be placed.
It can be particularly advantageous if the at least one filament strand is conveyed with the second clamping device directly into a filament holder of a bristle carrier, for example a brush or a brush. After the filament strand has been pushed into the filament holder of the bristle carrier, the filament strand can be severed from the filament strand in order to separate a bundle of filaments. In this way, a filament receptacle of a bristle carrier can be equipped with a filament bundle of fine filaments entirely without using an anchor.
The aforementioned object is also achieved by a conveying device of the type mentioned at the outset, which comprises the means and features of the independent claim directed to such a conveying device. To achieve the object, a conveyor device for the step-by-step conveying of at least one filament strand in a conveying direction is thus proposed, the conveying device comprising a bobbin holder for at least one filament strand bobbin, a first clamp
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Apparatus and a second clamping device for the at least one filament strand comprises, wherein the first clamping device and the second clamping device can be moved independently of one another in and against the conveying direction of the at least one filament strand. In this way, a conveying device for the gradual conveying of at least one filament strand is created, which is set up to carry out the method described in detail above and claimed in the corresponding claims.
The conveyor device can have a first drive unit for the first clamping device and a second drive unit for the second clamping device. With the help of the first drive unit, the first clamping device can be moved in and against the conveying direction. With the aid of the second drive unit, the second clamping device can be moved independently of the first clamping device in and against the conveying direction of the at least one filament strand.
With the aid of the conveying device, at least one filament strand can be moved in the conveying direction with the first clamping device when the second clamping device is open, and can thus be drawn off from one or more filament strand bobbins arranged on the spool holder. When the first clamping device is open, the second clamping device is then used, with which the at least one filament strand can then be moved by a further step in the conveying direction. As already described above, the second clamping device can in particular be used to push the at least one filament strand directly into a filament receptacle of a bristle carrier arranged on a holding device. In this way, it is possible to equip a bristle carrier of a brush or a brush with a filament bundle that has been separated from the at least one filament strand, without a tamping tool or a bundle anchor
BE2019 / 5028 to use.
At least one intermediate support element can also be arranged between the first clamping device and the second clamping device, which is mounted so as to be linearly movable in and against the conveying direction of the filament strand. It is particularly expedient if two or more intermediate support elements for at least one filament strand are arranged between the first and the second clamping device and are mounted so as to be linearly movable in and against the conveying direction of the at least one filament strand. With the aid of the at least one intermediate support element, a filament strand length that can be pushed out in one stroke with the aid of the second clamping device can be increased. This without increasing the free spaces in which the at least one filament strand is not supported and / or guided between the first and the second clamping device. This can prevent the at least one filament strand from buckling when being pushed out with the second clamping device upstream of the at least one filament strand of the first clamping device.
At least one return element, in particular a return spring, can be arranged between the first clamping device and an intermediate support element and / or between the second clamping device and an intermediate support element and / or between two adjacent intermediate support elements. A portion of the at least one filament strand, which is arranged between the first clamping device and the second clamping device, can be kept under tension with the aid of the restoring element or elements.
The conveying device can have at least one path limiter, through which an adjustment path between the first clamping element and an intermediate support element, an adjustment path between the second
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Clamping element and an intermediate support element and / or an adjustment path between two adjacent intermediate support elements is limited. With the aid of the at least one travel limiter, the first clamping device and an intermediate support element, two immediately adjacent intermediate support elements and / or also an intermediate support element and the second clamping device can be connected to one another in such a way that free spaces between them when the individual segments of the conveying device, i.e. the first clamping device, are pulled apart. the second clamping device and the at least one intermediate support element are limited to a defined dimension. Several limiters can be connected to each other in such a way that they form a chain. It is thus possible for the first clamping device, the second clamping device and, if present, all intermediate support elements arranged between them to be connected to one another by a chain of a plurality of travel limiters and to be movable relative to one another within limits specified by the travel limiters.
With the aid of travel limiters, which form a chain between the first clamping device and the second clamping device, a maximum distance that the first clamping device and the second clamping device can take from one another can be specified. Furthermore, the path limiters can also jointly define a minimum distance which cannot be exceeded by an approach between the first clamping device and the second clamping device.
The conveyor device can have a third clamping device. This third clamping device can be arranged such that it can move between the coil holder and the second clamping device. It is particularly preferred here if at least one restoring element is assigned to the third clamping device. This reset element can e.g. act at least one return spring. Against one
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Restoring force of the at least one restoring element, the third clamping device can be movable in the conveying direction. In this way, it is possible to clamp the at least one filament strand with the third clamping device and, due to the restoring force acting against the conveying direction from the at least one restoring element and acting against the conveying direction, with the aid of the first clamping device under a certain pretension in the conveying direction. In this way it is possible to compensate for certain differences in length of the filaments forming the at least one filament strand and thus to avoid blockages or other complications when conveying the at least one filament strand.
The first, second and / or third clamping device can each have a clamping element for clamping at least one filament strand. The respective clamping element can be moved against an restoring force of a restoring element, in particular a restoring spring, into an open position in which it does not clamp the at least one filament strand. This ensures that the first, second and / or third clamping device can still clamp the at least one filament strand even when the conveying device is switched off, which can happen unintentionally in the event of a power failure, for example. The clamping elements can be moved into their open position and held there, for example, with actuators which are assigned to the clamping elements.
The first, second and / or third clamping device and / or at least one intermediate support element, for example the at least one previously mentioned intermediate support element, which can be arranged between the first and the second clamping device, can each have at least one guide channel for a filament strand. The filament strand can be passed through the respective through this guide channel
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Guide the clamping device or through the respective intermediate support element safely and with sufficient support.
The aforementioned clamping elements of the first, second and / or third clamping device can, for example, have passage openings corresponding to the guide channels and can themselves be designed as clamping slides. In this way it is possible for the clamping elements in their open position to allow the at least one filament strand to pass through the respective clamping device. This is done by bringing the corresponding passage openings into overlap with the guide channels of the respective clamping device. In the clamping position, the clamping elements or clamping slides are then shifted a little laterally, so that the overlap of their passage openings with the guide channels of the clamping devices is at least partially eliminated. In this way, an inner cross section of the respective guide channel can be narrowed and a filament strand located therein can be clamped.
At this point it should be noted that the first, second and / or third clamping device as well as the at least one intermediate support element can be designed as shaping clamping devices or as shaping intermediate support elements. Thus, a cross section of the at least one filament strand can be changed as desired with the aid of the first, second and / or third clamping device and / or with the aid of the at least one intermediate support element on its way through the conveying device.
It is possible, for example, for the filament strand with a circular cross section to enter the guide channel of the third clamping device in order to there and in the guide channels of the subsequent second clamping device, the at least one intermediate support element and
BE2019 / 5028 finally the first clamping device to gradually obtain a crescent-shaped or kidney-shaped cross section. In this way, the conveying device can be used to change a cross section of the at least one filament strand to the desired shape which a bundle of filaments separated from the filament strand should have in a bristle carrier of a brush or a brush to be produced.
For this purpose, the guide channels of the first, second and / or third clamping device and a guide channel of the at least one intermediate support element can have different cross sections, which may change in the course of the individual guide channels. It can be particularly preferred here that a cross section of the guide channel of the first clamping device is smaller than a cross section of the guide channel of the second clamping device.
Furthermore, it is possible that a cross section of the guide channel of the second clamping device is again smaller than a cross section of the guide channel of the third clamping device. In this way, the passage of the guide channels of the third, second and first clamping device enables the at least one filament strand to be conveyed to be compressed. The filament strand can also be compressed in a guide channel of an intermediate support element.
Furthermore, it is possible that two or more guide channels of the conveying device, in particular the second clamping device, one, for example the third clamping device mentioned above and / or one, for example the previously mentioned, at least one intermediate cut element in a common guide channel of the first clamping device or of a downstream compressor element, in particular a funnel. That way it is
BE2019 / 5028 possible to combine several filament strands with the help of the conveyor to a common filament strand. For example, differently colored filament strands can be used to produce filament strands composed of filaments of different colors. Finally, filament bundles which have filaments of different colors can also be obtained from such a filament strand comprising filaments of different colors. Overall, the freedom of design in the manufacture of brushes and / or brushes is further increased.
In order to facilitate the entry of the at least one filament strand into the guide channel of at least the second clamping device, an entry opening into the at least one guide channel of at least the second clamping device can have an entry chamfer. This can serve as an insertion aid for inserting a filament strand into the respective guide channel. In principle, it is possible for the inlet opening of each guide channel of the conveyor device to be provided with such an inlet chamfer.
In order to be able to prevent a filament strand bobbin arranged on the bobbin holder from re-turning when a filament strand is pulled off this filament strand bobbin, it is expedient if the conveying device, in particular the bobbin holder, has a bobbin brake. With the help of the bobbin brake, an inertia-related torque of a filament strand bobbin, from which a filament strand is gradually withdrawn, can be compensated.
It can also be advantageous if the bobbin holder comprises a quick-change device with which a filament strand bobbin can be exchanged, preferably without tools.
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The first clamping device, the second clamping device and / or the third clamping device can each be formed or arranged on a carriage. Furthermore, the first clamping device, the second clamping device and / or the third clamping device can each be mounted in a linearly movable manner on at least one separate guide element or on at least one common guide element, in particular over their respective slide. The guide element can be, for example, a guide rail or a guide rod.
A guide element, which is assigned to the third clamping device, can have a sliding stop at its end facing the coil holder. In this way, an adjustment path of the third clamping device against the conveying direction of the at least one filament strand can be limited by the sliding stop.
The conveying device can furthermore have a compressor element, for example a funnel. The compressor element can be arranged in the conveying direction of the at least one filament strand behind the first clamping device. An outlet opening of the first clamping device can open into the compressor element, in particular into a guide channel of the compressor element. The guide channel can also be designed as a compressor channel, the inner cross section of which decreases in the conveying direction and / or its cross-sectional shape changes in the course of the compressor channel. The compressor channel or guide channel of the compressor element can in turn open into a filament receptacle of a clamped bristle carrier. This is particularly the case when the conveying device is used on a device for producing a brush and / or a brush, which is set up for clamping a bristle holder.
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The compressor element, in particular the funnel, can have an outlet cross section from its guide channel or compressor channel, which corresponds to an inlet cross section of a filament holder of a bristle carrier, which is to be equipped with a filament bundle cut to length from the filament strand.
Finally, the object is also achieved by a device for producing brushes and / or brushes of the type mentioned at the outset, which has a conveying device according to one of the claims directed to such a conveying device and a holding device for at least one bristle carrier of a brush and / or a brush. The holding device can be arranged downstream of the conveying device in the conveying direction of the at least one filament strand.
The device can have a cutting device which is arranged between the conveying device and the holding device. With the aid of the cutting device, a filament strand introduced with the conveying device into a filament receptacle of a clamped bristle carrier can be severed and thus a bundle of filaments can be separated from the filament strand. The cutting device can have a straight cutting edge. In order to produce a filament bundle, the free end of which has a certain geometry or contour, for example curved, the cutting edge of the cutting device can be shaped accordingly, for example be convex or concave.
It is also possible for the device to have a heating device. The heating device can also be arranged downstream of the first clamping device of the conveying device in the conveying direction. With the help of the heating device, free filament ends of filaments combined in the at least one supplied filament strand can be fused together and a fastening head can be produced. With the befes
BE2019 / 5028 tiger head a filament bundle separated from the filament strand can then be fixed in a filament receptacle. The free filament ends are preferably fused before the filament strand is pushed into the filament holder of a clamped bristle carrier with the aid of the conveying device. By fusing the free filament ends of the filament strand, differences in length of the filaments forming the filament strand can also be compensated or concealed to a certain extent.
For the fully automated production of brushes or brushes, it can also be expedient if the device has a fastening device for fastening a bundle of filaments to a bristle carrier of a brush or a brush. With the aid of the fastening device, for example, a bristle carrier, the filament receptacle of which has been equipped with a bundle of filaments separated from the at least one supplied filament strand, can be squeezed, crimped or deformed in such a way that the filament bundle is then positively connected to the bristle carrier. Of course, other fastening options are also conceivable, such as, for example, welding, overmolding or even gluing the filament bundles in or on the bristle carrier.
An embodiment of the invention will now be described in more detail with reference to the drawing. They show in a partially highly schematic representation:
1 is a perspective view of a device according to the invention for the production of brushes or brushes, the device having a conveying device for the gradual conveying of a filament strand,
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2 shows the detail marked with the circle K1 in FIG. 1 in an enlarged representation,
3 shows the device shown in FIG. 1, wherein it can be seen that a second clamping device of the conveying device has inserted the filament strand through a first clamping device and a funnel of the conveying device downstream of the first clamping device into a filament receptacle of a clamped bristle carrier,
4 shows the detail marked with the circle K2 in FIG. 3 in an enlarged representation,
5 shows a side view of the device for producing brushes and / or brushes shown in the previous figures,
Fig. 6 is a plan view of the device shown in the previous Fig. And
7 is a non-exhaustive overview of possible cross-sectional shapes that the guide channels of the third clamping device (cross section A-A), the second clamping device (cross section B-B), the first clamping device (cross section C-C) and the funnel downstream of the first clamping device (cross section D-D) can assume.
FIGS. 1 to 7 each show at least parts of a device for the production of brushes and / or brushes, designated as a whole by 1. The device 1 has a conveyor device 2 for a filament strand
BE2019 / 5028 and a holding device 3, the holding device 3 in the conveying direction PF. 1 of the filament strand 5 is arranged behind a first clamping device 4 of the conveying device 2.
The conveying device 2 serves the filament strand 5, which combines individual filaments, step by step in a conveying direction PF. 1 advance. A bristle carrier 6 of a brush or a brush is clamped on the holding device 3 of the device 1 for producing brushes and / or brushes in order to equip its filament holder 7 with a filament bundle 8 obtained from the filament strand 5.
The device 1 also has a cutting device 9 with which the filament strand 5 can be severed after it has been inserted into a filament holder 7 of a bristle carrier 6 clamped on the holding device 3. In this way, a filament bundle 8 can be separated from the filament strand 5 after it has been inserted into the filament receptacle 7.
Furthermore, the device 1 also has a heating device 10. The heating device 10 serves to fuse together free filament ends of the filament strand 5. This is before the filament strand 5 is inserted into the filament holder 7 of the bristle carrier 6 and a filament bundle 8 is separated from the filament strand 5. By melting the free filament ends of the filament strand 5, length differences of individual filaments can be compensated for on the one hand and a fastening head can be produced on the other hand. The filament strand 5 or a filament bundle 8 obtained from the filament strand 5 can be reliably fastened in the filament receptacle 7 of the bristle carrier 6 with the fastening head.
The device 1 also has a fastening device 11. This fastening device 11 serves a filament bundle 8, the
BE2019 / 5028 was cut off from the filament strand 5 with the cutting device 9, to be attached to the bristle carrier 6 of a brush or a brush to be produced. In the present exemplary embodiment of the device 1, this is done by clamping or squeezing the bristle carrier 6 on the outside, as a result of which an inner cross section of its filament holder 7 can be reduced such that a filament bundle 8 provided with a fastening head is positively fixed in the filament holder 7 of the bristle holder 6.
The conveying device 2 already mentioned is set up to move the filament strand 5 step by step in the conveying direction PF. 1 advance. In the device 1 shown in the figures, the conveying device 2 is used to pull the filament strand 5 from a filament strand spool 13 and to push it directly into a filament holder 7 of a bristle carrier 6 held ready.
For this purpose, the conveying device 2 has a bobbin holder 12 for a filament strand bobbin 13, the previously mentioned first clamping device 4 and a second clamping device 14.
The first clamping device 4 and the second clamping device 14 can be moved independently of one another in and against the conveying direction Pf.1 of the filament strand 5. With the aid of the first clamping device 4 and the second clamping device 14, the filament strand 5 can be clamped, gripped thereby and conveyed step by step in the conveying direction Pf.1.
The conveyor device 2 has a first drive unit 15 for moving its first clamping device 4. A second drive unit 16 is provided for moving the second clamping device 14. With the first drive unit 15, the first clamping device 4 can be moved in and against the conveying direction of the filament strand 5. With
With the aid of the second drive unit 16, the second clamping device 14 can be moved in and against the conveying direction of the filament strand 5.
The first and the second drive units 15 and 16 each comprise a reciprocating piston with which the first and second clamping devices 4 and 14 can be moved in and against the conveying direction of the filament strand 5.
Between the first clamping device 4 and the second clamping device 14, the conveyor device 2 has a total of ten intermediate support elements 17. The intermediate support elements 17 are movably mounted in and against the conveying direction of the filament strand 5. They serve to limit free spaces or distances, in which the filament strand 5 is not carried or not supported within the conveying device 2, to a certain, tolerable amount. The function of the intermediate support elements 17 has already been discussed in detail above.
Restoring elements 18 act in the form of restoring springs between the individual intermediate support elements 17. At least one such restoring element 18 is also provided between the first clamping device 4 of the conveying device 2 and the intermediate support element 17 adjacent to it. The same also applies to the second clamping device 14, which is likewise connected to one of the intermediate support elements 17 via at least one such reset element 18.
Furthermore, the conveyor device 2 has path limiters 19. With the aid of these travel limiters 19, an adjustment travel between the first clamping device 4 and one of the intermediate support elements 17 is limited to a defined dimension. Such way limiters 19 also act on the intermediate support elements 17, with which the relative adjustment paths of the
BE2019 / 5028 limit adjacent intermediate elements 17 to each other. Travel limiters 19 are also provided on the intermediate support element 17, which is arranged adjacent to the second clamping device 14, and the second clamping device 14. With the aid of the travel limiters 19, which form a chain connecting the first clamping device 4 with the second clamping device 14, it is consequently possible to predefine a maximum distance that the first clamping device 4 and the second clamping device 14 can take from one another. Furthermore, the path limiters 19 together also define a minimum distance which cannot be exceeded by an approach between the first clamping device 4 and the second clamping device 14.
The conveyor device 2 also has a third clamping device 20. The third clamping device 20 is arranged such that it can move between the coil holder 12 and the second clamping device 14. The third clamping device 20 is also assigned at least one restoring element 18 in the form of a restoring spring, against the restoring force of which the third clamping device 20 can be moved in the conveying direction Pf.1 when it grips the filament strand 5 by clamping and the filament strand 5 with the first clamping device 4 in the conveying direction Pf.1 is pulled.
The first, second and third clamping device 4, 14, 20 each have a clamping element 21 for clamping the filament strand 5. The clamping elements 21 are each movable against a restoring force of a further restoring element 18, here a restoring spring 18, into an open position in which the clamping elements 21 do not clamp the filament strand 5. An actuator 21a is provided for each clamping element 21, with which the respective clamping element 21 can be moved into its open position against the action of its return spring 18.
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The first, second and third clamping devices 4, 14 and 20 and the intermediate support elements 17 each have a guide channel 22 through which the filament strand 5 is passed.
Entry openings into the respective guide channels 22 can each be provided with an entry chamfer. These entry chamfers can serve as an insertion aid for inserting the filament strand 5 into the guide channels 22.
In order to prevent the filament strand bobbin 13 arranged on the bobbin holder 12 from turning or running again when the filament strand 5 is pulled off the filament strand bobbin 13, the conveying device 2 has a bobbin brake 23. Furthermore, the bobbin holder 12 is provided with a quick-change device 28 with which a filament strand bobbin 13 can be changed without tools.
The first clamping device 4, the second clamping device 14 and the third clamping device 20 are each formed on a separate carriage 24. The carriages 24 of the first clamping device 4, the second clamping device 14 and the third clamping device 20 are linearly displaceably mounted on a common guide element 25, which is designed here as a guide rail 25.
In particular, FIG. 5 illustrates that the guide element 25 of the third clamping device 20 has a sliding stop 26 at its end facing the coil holder 12, by means of which the adjustment path of the third clamping device 20 and its slide 24 on the guide elements 25 is limited.
The conveying device 2 also has a funnel 27 as a compressor element, which is behind the first in the conveying direction Pf.1 of the filament strand 5
BE2019 / 5028 th clamping device 4 is arranged. An outlet opening of the first clamping device 4, from which the filament strand 5 emerges, opens into the funnel 27. The funnel 27, like the first, second and third clamping devices 4, 14, 20 and the intermediate elements 17, is designed to be shaping and also serves to compress the filament strand 5. The funnel 27 has an outlet cross section which corresponds to an inlet cross section of the filament receptacle 7 of the bristle carrier 6, which is spanned on the holding device 3 of the device 1 and which is to be equipped with a filament bundle 8 cut to length from the filament strand 5.
The method described below for the gradual conveying of at least one filament strand 5 can be carried out on the conveying device 2 described above.
The at least one filament strand 5 is clamped with the first clamping device 4, then pulled off the filament strand spool 13 by moving the first clamping device 4 in the conveying direction Pf.1 of the filament strand 5 with the first clamping device 4, then clamped with the second clamping device 14 and then by moving the second clamping device 14 in the conveying direction Pf.1. While the at least one filament strand 5 is drawn off from the filament strand bobbin 13 with the first clamping device 4, the second clamping device 14 is open.
The filament strand 5 is clamped with the third clamping device 20, which is movable in and against the conveying direction Pf.1 of the filament strand 5, and is thus gripped before it is pulled off the filament strand spool 13 with the first clamping device 4. In the meantime, a restoring force, which is oriented counter to the conveying direction Pf. 1 of the filament strand 5, is exerted on the third clamping device 20
BE2019 / 5028 brings. For this purpose, the return element 18 assigned to the third clamping device 20 is used in the form of the return spring 18. In this way, the filament strand 5 is tensioned while being moved in the conveying direction Pf.1 with the first clamping device 4. The third clamping device 20 is finally opened after the second clamping device 14 has clamped and gripped the filament strand 5.
With the aid of the conveying device 2 and its first, second and third clamping device 4, 14 and 20 as well as the intermediate support elements 17 or also the funnel 27, a cross section of the filament strand 5 can be changed in the desired manner. It is thus possible to change the cross-section of the filament strand 5 during the feeding towards the clamped bristle carrier 6 to such an extent that the cross-section of the filament strand 5 corresponds to the cross-section of the filament holder 7 of the bristle carrier 6 when it emerges from the funnel 27. In this way, a separate reshaping of the filament strand 5 is not necessary.
The filament strand 5 is pushed into the filament receptacle 7 of the bristle carrier 6 by means of the second clamping device 14, after which the filament strand 5 is severed to produce a filament bundle 8.
Thus, the free end of the filament strand 5 is thus first inserted into the filament holder 7 of the bristle carrier 6 stretched and then severed, so that a bundle of filaments 8 separated from the filament strand 5 remains in the filament holder 7 of the bristle holder 6. With the aid of the fastening device 11 of the device 1 for producing brushes and / or brushes, the filament bundle 8 thus introduced into the filament receptacle 7 can be reliably fastened to the bristle carrier 6.
BE2019 / 5028
FIG. 7 shows a non-exhaustive overview of potential cross-sectional shapes which the guide channels 22 of the third clamping device 20 (column A), the second clamping device 14 (column B), the first clamping device 4 (column C) and the funnel 27 (column D) have can. The section lines drawn in FIG. 5 clarify the position of the cross sections shown in FIG. 7.
It is noticeable here that the guide channels 22 of the elements shown can be used on the one hand to change a cross section of the filament strand 5 on its way through the conveying device 2. In particular, if the third clamping device 20, the second clamping device 14 or also the first clamping device 4 have a plurality of guide channels 22 which, for example, open into a guide channel 22 of the funnel 27 (cf. the illustrations in lines 3 to 6 of FIG. 7), it is possible to combine several filament strands 5 with the aid of the conveying device 2 into a single filament strand, from which a filament bundle 8 is finally also separated. If the cross sections of the guide channels 22 in the conveying direction Pf. 1 of the at least one filament strand 5 decrease through the conveying device 2, that is to say become smaller, it is also possible to compress the at least one filament strand 5 on its way through the conveying device 2. This is already clear from the illustrations in line 1 of FIG. 7. Here the cross sections of the illustrated guide channels 22 decrease from column A to column D.
The invention is concerned with improvements in the technical field of manufacturing brushes and / or brushes. For this purpose, the conveyor device 2 is proposed in particular. This serves to gradually advance a filament strand 5 in a conveying direction. For this purpose, the conveying device 2 has the first clamping device 4 and the second clamping device 14. Using the first clamping device 4
BE2019 / 5028 the filament strand 5 is clamped and gripped and by a
Movement of the first clamping device 4 is moved in the conveying direction of the filament strand 5 and thereby pulled off the filament strand spool 13. Subsequently, the filament strand 5 is clamped and gripped using the second 5 clamping device 14 and moved a little further by moving the second clamping device 14 in the conveying direction of the filament strand 5. With the aid of the second clamping device 14, the filament strand 5 can be inserted, for example, into the filament holder 7 of a bristle carrier 6.
BE2019 / 5028
LIST OF REFERENCE NUMBERS
contraption
conveyor
Holding device first clamping device
filament strand
bristle carrier
Filamentaufnahme
filament bundles
cutter
heater
fastening device
spool holder
Filament strand spool second clamping device first drive unit second drive unit
Between the support element
Return element
Path limiter third clamping device
Clamping element on 4, 14, 20
21a actuator for 21
Guide channel in 4, 14, 20, 17 and 27
spool drag
carriage
Guide member / guide rail
Sliding stop on 25
funnel
Quick change device

权利要求:
Claims (25)
[1]
1. Method for the gradual conveying of at least one filament strand (5), the at least one filament strand (5) being clamped with a first clamping device (4), then by moving the first clamping device (4) in the conveying direction (Pf.1) of the filament strand ( 5) moved in the conveying direction (Pf.1) with the first clamping device (4), then clamped with a second clamping device (14) and then moved further in the conveying direction (Pf.1) by moving the second clamping device (14).
[2]
2. The method according to claim 1, characterized in that the second clamping device (14) is open, while the at least one filament strand (5) with the first clamping device (4) is moved in the conveying direction (Pf.1).
[3]
3. The method according to claim 1 or 2, characterized in that the at least one filament strand (5) with a third, in and against the conveying direction (Pf.1) of the filament strand (5) movable clamping device (20) that the first and / or upstream of the second clamping device (14) in the conveying direction (Pf.1), is clamped before it is moved with the first clamping device (4), a restoring force acting counter to the conveying direction (Pf.1) of the at least one filament strand ( 5) is aligned, acts on the third clamping device (20) so that the at least one filament strand (5) is tensioned.
[4]
4. The method according to claim 3, characterized in that the third clamping device (20) is opened after the second clamping device (14) has clamped the at least one filament strand (5).
BE2019 / 5028
[5]
5. The method according to any one of claims 1 to 4, characterized in that a cross section of the at least filament strand (5) with the first, second and / or third clamping device (4, 14, 20) is changed and / or that the at least one filament strand (5) is guided through a compressor element (27), in particular a funnel (27), which is arranged behind the first clamping device (4) in the conveying direction (Pf.1) and changes a cross section of the at least one filament strand (5), in particular the compresses at least one filament strand (5).
[6]
6. The method according to any one of claims 1 to 5, that the at least one filament strand (5) with the second clamping device (14) is pushed into a filament holder (7) of a bristle carrier (6), after which the filament strand (5) for producing a filament bundle (8) is severed.
[7]
7. Conveying device (2) for the gradual conveying of at least one filament strand (5) in a conveying direction, the conveying device (2) having a bobbin holder (12) for at least one filament strand bobbin (13), a first clamping device (4) and a second clamping device (14 ) for the at least one filament strand (5), the first clamping device (4) and the second clamping device (14) being movable independently of one another in and against the conveying direction (Pf.1) of the at least one filament strand (5).
[8]
8. Conveying device (2) according to claim 7, characterized in that the conveying device (2) has a first drive unit (15) for the first clamping device (4) with which the first clamping device (4) can be moved in and against the conveying direction, and a second drive unit (16) for the second clamping device
BE2019 / 5028 (14) with which the second clamping device (14) can be moved in and against the conveying direction (Pf.1).
[9]
9. Conveying device (2) according to one of the preceding claims, characterized in that between the first clamping device (4) and the second clamping device (14) at least one intermediate support element (17) or at least two or more intermediate support elements (17) for at least one filament strand ( 5) is / are arranged, the at least one intermediate element (17) or the at least two or more intermediate elements (17) being mounted so as to be linearly movable in and against the conveying direction (Pf.1) of the at least one filament strand (5).
[10]
10. Conveying device (2) according to one of the preceding claims, characterized in that between the first clamping device (4) and an intermediate support element (17) and / or between the second clamping device (14) and an intermediate support element (17) and / or between two adjacent intermediate support elements (17) each have at least one return element (18), in particular a return spring.
[11]
11. Conveying device (2) according to one of the preceding claims, characterized in that the conveying device (2) has at least one path limiter (19) through which an adjustment path between the first clamping device (4) and an intermediate support element (17), an adjustment path between the second clamping device (14) and an intermediate support element (17) and / or an adjustment path between two adjacent intermediate support elements (17) is limited.
[12]
12. Conveyor device (2) according to one of the preceding claims, characterized in that the conveyor device (2) has a third
BE2019 / 5028
Clamping device (20), which is movably mounted between the coil holder (12) and the second clamping device (14), preferably wherein at least one restoring element (18), in particular at least one restoring spring (18), is assigned to the third clamping device (20), the third clamping device (20) can be moved in the conveying direction (Pf.1) against its restoring force.
[13]
13. Conveying device (2) according to one of the preceding claims, characterized in that the first, second and / or third clamping device (4, 14, 20) each have / have a clamping element (21) for clamping at least one filament strand (5), which can be moved against a restoring force of a restoring element (18), in particular a restoring spring (18), into an open position in which it does not clamp the at least filament strand (5).
[14]
14. Conveying device (2) according to one of the preceding claims, characterized in that the first, second and / or third clamping device (4, 14, 20) and / or at least one intermediate support element (17) each have at least one guide channel (22) for one Has / have filament strand (5).
[15]
15. Conveying device (2) according to one of the preceding claims, characterized in that two or more guide channels (22) of the conveying device (2), in particular the second clamping device (14), one or the third clamping device (20) and / or one or of the at least one intermediate support element (17) open into a common guide channel (22) of the first clamping device (4) and / or one of the compressor elements (27) downstream of the first clamping device (4), in particular a funnel (27).
BE2019 / 5028
[16]
16. Conveying device (2) according to one of the preceding claims, characterized in that an inlet opening in the at least one guide channel (22) of at least the second clamping device (14) has an entry chamfer as an insertion aid for a filament strand (5).
[17]
17. Conveying device (2) according to one of the preceding claims, characterized in that the conveying device (2), in particular the coil holder (12), has a coil brake (23).
[18]
18. Conveyor device (2) according to one of the preceding claims, characterized in that the bobbin holder (12) comprises a quick-change device (28) with which a filament strand bobbin (13), preferably without tools, can be exchanged.
[19]
19. Conveying device (2) according to one of the preceding claims, characterized in that the first clamping device (4), the second clamping device (14) and / or the third clamping device (20) are each formed and / or arranged on a carriage (24) is / are, and / or that the first clamping device (4), the second clamping device (14) and / or the third clamping device (20), in particular via their respective slide (24), in each case on at least one separate guide element (25) or are linearly movably mounted on at least one common guide element (25).
[20]
20. Conveyor device (2) according to one of the preceding claims, characterized in that one or the guide element (25) for the third clamping device (20) has a sliding stop (26) on its end facing the coil holder (12).
BE2019 / 5028
[21]
21. Conveying device (2) according to one of the preceding claims, characterized in that the conveying device (2) has a compression element (27), in particular a funnel (27), which in the conveying direction of the at least one filament strand (5) behind the first clamping device ( 4) is arranged, an outlet opening of the first clamping device (4) opening into a guide channel (22) of the compressor element (27).
[22]
22. Conveying device (2) according to one of the preceding claims, characterized in that the compressor element (27) has an outlet cross section which corresponds to an inlet cross section of a filament holder (7) of a bristle carrier (6) which is cut to length with one of the filament strand (5) Filament bundle (8) to be loaded.
[23]
23. Device (1) for the production of brushes and / or brushes with a conveyor device (2) according to one of the preceding claims and with a holding device (3) for at least one bristle carrier (6) of a brush or a brush.
[24]
24. The device (1) according to claim 23, characterized in that the device (1) has a cutting device (9) and / or a heating device (10).
[25]
25. The device (6) according to claim 23 or 24, characterized in that the device (1) has a fastening device (11) for fastening a bundle of filaments (8) to a bristle carrier (6) of a brush or a brush.

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同族专利:

公开号 | 公开日

BE1026190A1|2019-10-31|

DE102018107163A1|2019-09-26|

引用文献:

公开号 | 申请日 | 公开日 | 申请人 | 专利标题

DE3718811C1|1987-06-05|1988-03-31|Schlerf Coronet Werke|Process and device for the production of plastic bristle goods|

DE10139584A1|2001-08-11|2003-02-20|Zahoransky Anton Gmbh & Co|Producing bristle bundles from filaments for brushes involves tensioning bristle strand between first clamping points, filament length equalization by opening second clamping point|

DE10248858A1|2002-10-18|2004-04-29|Anton Zahoransky Gmbh & Co.|Method and appliance for producing filaments in production of tufted brush bristles involves feeder and extractor,tensioning devie and clamping points|

法律状态:
2019-11-27| FG| Patent granted|Effective date: 20191104 |

优先权:

申请号 | 申请日 | 专利标题

DE102018107163.9A|DE102018107163A1|2018-03-26|2018-03-26|Method for the stepwise conveying of at least one filament strand, conveying device and device for producing brushes and / or brushes|

DE102018107163.9|2018-03-26|

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