EP3876789A1 - Bündelvereinzelner eines bürstenstopfwerkzeugs und verfahren zum vereinzeln von bündeln - Google Patents
Bündelvereinzelner eines bürstenstopfwerkzeugs und verfahren zum vereinzeln von bündelnInfo
- Publication number
- EP3876789A1 EP3876789A1 EP19801820.2A EP19801820A EP3876789A1 EP 3876789 A1 EP3876789 A1 EP 3876789A1 EP 19801820 A EP19801820 A EP 19801820A EP 3876789 A1 EP3876789 A1 EP 3876789A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- recess
- bundle
- bristles
- bristle magazine
- separator according
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000000034 method Methods 0.000 title claims description 17
- 238000000926 separation method Methods 0.000 claims description 3
- 230000008859 change Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000000295 complement effect Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000004091 panning Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A46—BRUSHWARE
- A46D—MANUFACTURE OF BRUSHES
- A46D1/00—Bristles; Selection of materials for bristles
- A46D1/08—Preparing uniform tufts of bristles
-
- A—HUMAN NECESSITIES
- A46—BRUSHWARE
- A46D—MANUFACTURE OF BRUSHES
- A46D3/00—Preparing, i.e. Manufacturing brush bodies
- A46D3/04—Machines for inserting or fixing bristles in bodies
-
- A—HUMAN NECESSITIES
- A46—BRUSHWARE
- A46D—MANUFACTURE OF BRUSHES
- A46D3/00—Preparing, i.e. Manufacturing brush bodies
- A46D3/04—Machines for inserting or fixing bristles in bodies
- A46D3/042—Machines for inserting or fixing bristles in bodies for fixing bristles using an anchor or staple
-
- A—HUMAN NECESSITIES
- A46—BRUSHWARE
- A46D—MANUFACTURE OF BRUSHES
- A46D3/00—Preparing, i.e. Manufacturing brush bodies
- A46D3/08—Parts of brush-making machines
-
- A—HUMAN NECESSITIES
- A46—BRUSHWARE
- A46D—MANUFACTURE OF BRUSHES
- A46D3/00—Preparing, i.e. Manufacturing brush bodies
- A46D3/08—Parts of brush-making machines
- A46D3/082—Magazines for bristles; Feeding bristles to magazines; Knot picking
Definitions
- the invention relates to a bundle separator of a brush stuffing tool, with a bundle remover which can be pivoted back and forth about an axis between a transfer position on a stuffing tool and a pivoted-back position and thereby travels along a bristle magazine with an outside and a recess provided on the outside and receives a bundle from the bristle magazine in the recess.
- the invention relates to a method for separating bundles for a brush stuffing tool.
- bundle separators of this type always comprise a plate-shaped bundle pick-up, which has a circular segment-shaped outside, and which is reversibly pivotable about a vertical axis.
- the cycle rates of such bundle singlers are steadily increasing, at the same time the reject rate is to be reduced, which is a contradiction in terms.
- the bristle magazines comprise standing bristles which are biased transversely to their longitudinal direction, so that the bristles in the bristle magazine are pressed in the direction of an open side of the bristle magazine which is delimited by the outside of the bundle pickup. The pretension of the bristle magazine then ensures that bristles are pressed into the recess on the open side when the recess is moved along.
- the brush manufacturer specifies a certain maximum tolerance for bristles that have to be separated, for example 5-10% more or fewer bristles than the ideal number of bristles per tuft. For example, if 20 bristles ideally have to be removed, 18 to 22 bristles may be separated and transported to the stopper to meet tolerances.
- the high clock rates ensure an increasing speed at which the recess travels along the open side and thus for even less time to fill the recess. This translates into a higher risk that significantly less than the required bristles get into the recess, even if the cross section of the recess is designed for exactly the maximum tolerance, that is, for the inclusion of 22 bristles in the example above.
- the object of the invention is to provide a bundle separator that has a high reliability when filling the recess at high clock rates.
- a correspondingly improved method for separating bundles is to be specified.
- a bundle separator of the type mentioned at the outset in which there is an push-out device which is designed such that, during the separating operation, it has the cross section on the route in which the recess travels along the open side of the bristle magazine the recess is reduced and bristles are pressed out of the recess into the bristle magazine.
- the present invention provides that an oversized recess is used, with the aid of which lighter and more bristles are removed from the bristle stock than is desired. This ensures that more bristles are inserted into the recess than would be permitted according to the upper tolerance limit for the tamping process. This ensures that, in contrast to the prior art, not too few bristles migrate into the recess.
- the remaining cross section can be completely filled with bristles, which also allows the number of bristles that are ultimately transported to the tamping tool to be determined very precisely beforehand.
- the invention enables higher clock rates to be driven with extremely high reliability.
- the "separation operation" is not an adjustment procedure for the new alignment and setting of the bundle separator, but the separation operation is the ongoing operation, during which the bundle consumer is swung back and forth in the work cycle rate of the bundle separator Cross-section of the recess is reduced so that a part of the bristles picked up first either when swiveling forwards (ie when swiveling in the direction of the transfer position), in the rear dead center position opposite to the transfer position or when swiveling back prior filling of the recess are pressed back into the bristle magazine. The filling itself always takes place while swiveling back.
- the recess is filled in the first part of the distance and bristles are already pressed back into the bristle magazine in the second part of the distance.
- some bristles are pushed back in the last phase of the swiveling back and that the remaining excess bristles are then also pressed into the magazine in the dead center position and / or when swiveling forward.
- excess bristles are preferably pressed out of the recess only when swiveling forwards, that is to say when swiveling in the direction of the transfer position, so that when swiveling back there is sufficient time for the bristles to be picked up.
- the cross section is preferably continuously reduced during the forward or backward swiveling, that is to say that no sudden movement will take place, but the movement path is used in order to bring about a continuous reduction in the cross section. This prevents bristles from jamming.
- the push-out device can be a movable part fastened to the bundle pickup, which can move in sections over the recess, whereby “above” does not have to mean that the movable part lies above the recess; it can also lie below the recess, or in a slot in the bundle collector. Rather, it is generally a question here that the moving part and recess intersect in a plan view of the bundle pickup and thus the (free) cross section for receiving bristles is reduced in plan view.
- the movable part can optionally be moved by a drive removed from the bundle pickup.
- This drive is therefore not located on the bundle collector, but outside the bundle collector. This reduces the mass of moving parts.
- the drive has a stationary or a driven cam track along which a driver travels.
- the driver is coupled to the moving part.
- the cam track is designed in such a way that the movable part moves in sections when swiveling forward Recess on the bundle collector closes.
- a stationary cam track is implemented, for example, via a type of cylinder track along which the driver travels.
- the corresponding cam track has different sections, with different distances from the axis of the bundle collector, about which the latter pivots.
- the cam track can, however, also be driven, that is to say rotated by its own drive, in order to guide it radially outward during this rotation by mechanical coupling with the movable part.
- the movable part is in particular a swivel lever or a reversibly movable plunger.
- a roller that travels along the cam track is used as a driver.
- a stationary deflector This is arranged in the area of the open side of the bristle magazine and in a top view of the bundle collector so that it increasingly overlaps with the recess when swiveling forward. If the recess moves on the circular path which it takes up by pivoting the bundle collector, the deflector increasingly stands in its way, more precisely the bristles that protrude from the recess, so that the bristles run against the deflector and the deflector with its deflector surface, it pushes the bristles moving on the circular path outwards into the bristle magazine.
- the deflector can have a convexly curved deflector surface against which the bristles in the recess travel when swiveling back and forth and which runs obliquely into the path of movement of the bristles in the recess.
- the convex curvature is in particular a constant curvature, that is to say the part of the deflector surface which comes into contact with bristles has no steps or edges.
- the push-out device can be designed such that the recess is increasingly opened when pivoting back, preferably even in the pivoted back position is completely open after it was initially at least partially open.
- a variant of the invention provides that the push-out device ensures a change in the cross section of the recess, which is the same when swiveling forward and backward. This means when swiveling back the recess is initially smaller than then in the swiveled back position and then becomes larger. When swiveling forward, it then becomes smaller again to the same extent.
- Another variant of the invention provides that this course of the change in the cross section of the recess is different when swiveling forward and backward. In particular, the recess is always completely open when swiveling back and is only reduced when swiveling forwards. The filling of the recess can thus be made even easier.
- the method according to the invention for separating bundles for a brush stuffing tool can be carried out using the bundle separator according to the invention. It is characterized by the following steps:
- Bristles are pushed out of the recess during the singling operation, in particular during the swiveling forward, of the bundle collector back into the bristle magazine.
- the method according to the invention accordingly provides for the recess to be “overfilled,” so to speak, and to take up more than the necessary bristles, in order to then press the correct number of bristles for the bundle.
- the recess is preferably completely open during the pivoting back, that is to say at least in the fully pivoted back position, in order to accommodate enough bristles here.
- the cross-section of the recess is reduced by at least 10%, preferably at least 15%, for example during the singling operation, in particular during the forward swing, in order to ensure that too many bristles were actually originally contained in the recess.
- this also applies to the bundle separator according to the invention.
- FIG. 1 shows a schematic plan view of a brush stuffing tool, shown in a simplified manner, with a bundle separator according to the invention, but which is only shown in sections,
- FIG. 2 shows a plan view of a first embodiment of a bundle separator according to the invention
- FIG. 3 shows a plan view of a second embodiment of the bundle separator according to the invention
- FIG. 4 shows a plan view of a third embodiment of the bundle separator according to the invention
- FIG. 5 shows an enlarged detailed view of the bundle separator according to FIG. 2,
- FIG. 6 successive steps which the bundle separator according to FIG. 2 carries out in order to carry out the method according to the invention
- FIG. 7 shows six successive steps which the bundle separator according to FIG. 4 goes through in order to carry out the method according to the invention.
- FIG. 1 shows a bundle separator 10 of a tamping tool 12, which has a tip 14 which moves back and forth in the direction of the arrow X. is movable.
- a tongue 16 ensures that a bundle of bristles is pushed into a bristle carrier 18 via the tip.
- An anchor, not shown, which is pushed in with the bundle through the tongue 16, ensures that the bundle is anchored in the bristle carrier 18.
- the bundle separator 10 comprises a so-called bundle pick-up 20 which can be pivoted back and forth about a preferably vertical axis A, namely the pivoting forward means the pivoting in the direction of a transfer position in which an isolated bundle in a recess 22 in the tamping tool 12 is recorded. Swiveling back is swiveling in the opposite direction, ie away from the tip 14, to a rear dead center, which is referred to as the swiveled-back position.
- a bristle magazine 24 adjoins the bundle pickup 20, the bristles 26 standing and loaded in the direction of the arrow Y press in the direction of an open side 28 of the bristle magazine 24. In this area the bristles 26 can press against an outside 30 of the bundle pickup 20.
- the outside 30 is at least in sections, preferably completely in the form of a segment of a circle, with a radius that extends up to the axis A.
- FIG. 2 shows a scraper 32 which lies in the pivoting direction between the bristle magazine 24 and the transfer position and which has a counter surface 34 which is essentially complementary to the outside 30.
- the gap between the outer surface 30 and the counter surface 34 is minimal, in any case significantly smaller than the diameter of a bristle.
- the outside 30 has a recess 38 extending from it for receiving bristles.
- the cross section of the recess 38 is so matched to the number of bristles to be separated for each bundle that the cross section is oversized. This ensures that in any case more bristles penetrate into the recess 38 when pivoting than must be released later. Fitting the recess 38 with bristles 26 already begins when pivoting back as soon as the recess 38 has reached the open side 28. Further bristles can be pressed into the recess 38 until the swiveled-back position is reached and also afterwards when swiveling forward.
- a push-out device 40 is provided, which ensures that excess bristles are pressed out of the recess 38 into the bristle magazine 24 when swiveling forward in the direction of the stuffing position.
- FIG. 2 shows a purely stationary push-out device 40, which essentially consists of a stationary, that is to say stationary and not pivoted-along deflector 42, which, seen in plan view, has a convexly curved deflector surface 44 that extends radially inward of the outside 30.
- FIG. 5 shows a section of the deflector 42 and the deflector surface 44.
- various positions of the recess 38 can be seen, which it assumes when swiveling forwards and backwards.
- the deflector 42 partially extends into the movement path of the recess 38 and thus into the movement path of the bristles 26.
- the deflector 42 stands in this area such that it partially closes the recess 38. With increasing positioning in the direction of the pivoted-back position (to the right in FIG. 5), however, the deflector surface 44 extends radially inwards, so that the deflector 42 closes the recess 38 less and less.
- the curvature of the deflector surface 44 is continuous, without jumps or edges.
- the entire recess 38 is then open before reaching the fully pivoted-back position or only in the pivoted-back position.
- this is not to be understood as restrictive.
- the tufts of bristles that are formed are shown in the rightmost position of the recess 38 only for better identification of the limits of the parts with an excessive distance between the bristles and the wall of the recess. In reality, the bristles are also crowded in the fully open recess.
- the deflector 42 could also be variably adjustable and, in the pivoted-back position, release less cross section if fewer bristles per bundle are to be removed.
- the recess 38 is closed and the bundle is transported along the counter surface 34 to the tip 14.
- the same bundle collector 20 can also be used if fewer bristle bundles are to be separated.
- the deflector 42 can be adjusted radially outwards in the direction of the arrow Z manually or by motor, so that it can cover the recess 38 to a greater extent.
- the push-out device 40 is not formed by a purely stationary part. Rather, a movable part, here a plunger 50, is fastened to the bundle pick-up 20 in a radially displaceable manner via a bearing 52.
- the plunger 50 is preferably acted upon radially inward to the axis A by a spring.
- this carries a driver 54 in the form of a roller which runs on a cam track 56.
- the cam track 56 knows Sections that are further away from axis A and closer to it.
- the tappet 50 is more or less pushed outwards by the sections of the cam track 56 which lie at different distances from the axis A.
- the plunger 50 can thereby partially close the recess 38 over which the plunger 50 lies.
- the cam track 56 is also continuously curved, without abrupt cross-sectional jumps, edges or the like.
- the plunger 50 can optionally release the entire recess 38 in the pivoted-back position, of course optionally also beforehand.
- a lever 62 is provided here as a movable part, which is mounted on a pivot bearing 64 on the bundle pickup 20.
- the lever 62 is formed with two arms and has an arm which carries the driver 54 and with which the driver runs along the cam track 56. Depending on the position of the driver 54, the other arm is pivoted to a greater or lesser extent over the recess 38 in order to open or close it more or less.
- the cam track and the corresponding part 60 can not only be stationary as in FIG. 3, but can also be moved during pivoting or can also be moved outwards if bundles with other cross sections are to be produced.
- the cross section of the recess between the most open position, usually the pivoted-back position and the most closed position of the recess 38, is reduced by at least 10%, in particular at least 15%.
- the six consecutive partial figures in FIG. 6 show the different positions of the bundle pickup 20 in the embodiment according to FIG. 2, where it can be clearly seen that the push-out device 40 remains stationary, whereas the bundle pickup 20 is pivoted back and forth.
- FIG. 7 clearly shows the different positions of the lever 62 according to the embodiment according to FIG. 4, which it executes during a back and forth movement, because its driver 54 moves along the cam track 56, which is of different distances from the axis A. has removed sections.
- the partial figure 4 shows the pivoted-back position of the bundle collector 20 and the completely open recess 38.
- the pushing-out device also acts on the recess 38 during movement along the stripper 32, so that the cross section of the recess 38 remains the same even after leaving the open side 28 until transfer to the stuffing tool 12. This is the case regardless of the embodiments shown.
- part of the unnecessary bristles or all bristles are pushed out of the recess. It is important, however, that this pushing out of the bristles takes place in every cycle, i. H. in operation.
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Brushes (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102018127984.1A DE102018127984A1 (de) | 2018-11-08 | 2018-11-08 | Bündelvereinzelner eines Bürstenstopfwerkzeugs und Verfahren zum Vereinzeln von Bündeln |
PCT/EP2019/080522 WO2020094782A1 (de) | 2018-11-08 | 2019-11-07 | Bündelvereinzelner eines bürstenstopfwerkzeugs und verfahren zum vereinzeln von bündeln |
Publications (2)
Publication Number | Publication Date |
---|---|
EP3876789A1 true EP3876789A1 (de) | 2021-09-15 |
EP3876789B1 EP3876789B1 (de) | 2024-06-05 |
Family
ID=68536829
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP19801820.2A Active EP3876789B1 (de) | 2018-11-08 | 2019-11-07 | Bündelvereinzelner eines bürstenstopfwerkzeugs und verfahren zum vereinzeln von bündeln |
Country Status (5)
Country | Link |
---|---|
EP (1) | EP3876789B1 (de) |
CN (1) | CN113056219A (de) |
DE (1) | DE102018127984A1 (de) |
TW (1) | TWI841621B (de) |
WO (1) | WO2020094782A1 (de) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN112545156B (zh) * | 2020-12-07 | 2022-03-22 | 广州吉大机电科技有限公司 | 一种刷毛自动分毛装置 |
DE202021107009U1 (de) * | 2021-12-22 | 2022-03-24 | Gb Boucherie Nv | Bürstenstopfvorrichtung |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE202004016409U1 (de) * | 2004-10-22 | 2005-02-24 | Firma G.B. Boucherie N.V. | Bündelabnahmevorrichtung für eine Bürstenherstellungsmaschine |
JP5469968B2 (ja) * | 2009-09-14 | 2014-04-16 | ライオン株式会社 | 植毛装置 |
BE1023624B1 (de) * | 2016-03-30 | 2017-05-19 | Bart Gerard Boucherie | Verfahren und Vorrichtung zum Herstellen einer Bürste oder eines Pinsels sowie Träger für eine Bürste oder einen Pinsel |
DE102016004927A1 (de) * | 2016-04-25 | 2017-10-26 | Zahoransky Ag | Bündelabnahmevorrichtung und Bürstenherstellungsmaschine |
-
2018
- 2018-11-08 DE DE102018127984.1A patent/DE102018127984A1/de active Pending
-
2019
- 2019-11-05 TW TW108140035A patent/TWI841621B/zh active
- 2019-11-07 WO PCT/EP2019/080522 patent/WO2020094782A1/de unknown
- 2019-11-07 CN CN201980072607.1A patent/CN113056219A/zh active Pending
- 2019-11-07 EP EP19801820.2A patent/EP3876789B1/de active Active
Also Published As
Publication number | Publication date |
---|---|
CN113056219A (zh) | 2021-06-29 |
EP3876789B1 (de) | 2024-06-05 |
TW202031175A (zh) | 2020-09-01 |
DE102018127984A1 (de) | 2020-05-14 |
WO2020094782A1 (de) | 2020-05-14 |
TWI841621B (zh) | 2024-05-11 |
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