EP3367843B1 - Vorrichtung und verfahren zum erzeugen von borstenfeldern fuer buersten - Google Patents

Vorrichtung und verfahren zum erzeugen von borstenfeldern fuer buersten Download PDF

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Publication number
EP3367843B1
EP3367843B1 EP16788498.0A EP16788498A EP3367843B1 EP 3367843 B1 EP3367843 B1 EP 3367843B1 EP 16788498 A EP16788498 A EP 16788498A EP 3367843 B1 EP3367843 B1 EP 3367843B1
Authority
EP
European Patent Office
Prior art keywords
channel
bristle
projectile
cluster
opening
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.)
Active
Application number
EP16788498.0A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP3367843A1 (de
Inventor
Bart Gerard Boucherie
Henk Vandenbussche
Chris DEPICKERE
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
GB Boucherie NV
Original Assignee
GB Boucherie NV
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by GB Boucherie NV filed Critical GB Boucherie NV
Publication of EP3367843A1 publication Critical patent/EP3367843A1/de
Application granted granted Critical
Publication of EP3367843B1 publication Critical patent/EP3367843B1/de
Active legal-status Critical Current
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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
    • A46D3/08—Parts of brush-making machines
    • A46D3/082—Magazines for bristles; Feeding bristles to magazines; Knot picking
    • A—HUMAN NECESSITIES
    • A46—BRUSHWARE
    • A46D—MANUFACTURE OF BRUSHES
    • A46D3/00—Preparing, i.e. Manufacturing brush bodies
    • A46D3/08—Parts of brush-making machines
    • A46D3/085—Magazines for brush bodies; Feeding bodies

Definitions

  • the invention relates to a device for producing bristle fields for brushes, in particular toothbrushes, with a tuft singulating device which removes individual tufts of bristles from a tufting magazine and a tuft transporting device which has at least one channel through which an isolated bristle tuft is conveyed by means of a gas flow to a tuft picking unit ,
  • the bristle holding member is otherwise either the brush body or a part of the finished brush, such as the brush head or a wafer, or, alternatively, a perforated plate or cassette with filling holes, from which the tufts can be pressed into another part or part of the finished brush ,
  • the orifice plate or cassette can also be used as a tool insert in an injection mold, so that the bristle ends, which protrude from the perforated plate or cassette, are overmolded.
  • the bristle holding part each has prefabricated openings, in which the individual bristle tufts are pressed.
  • a first, the previously indicated variant of such a device is to transfer the isolated tufts of bristles directly into a Stopftechnik, by means of which the frets are stuffed or pressed into holes of a bristle holding part, for. B. EP 0 972 464 A1 and EP 0 972 465 A1 ,
  • the second variant is the variant described in the aforementioned publication, in which isolated tufts of bristles via tubes by means of a gas flow freely fly through this channel and thus bridge a transport path.
  • "Gas flow” in the context of the invention means that the bristle tufts either by compressed air or by negative pressure the channel be promoted.
  • the cross section of the tuft must be matched very closely to the cross section of the channel. Namely, if the bristle tufts too small, the bristles fly individually through the channel and reach a relatively disordered one sitting after the channel receiving plate.
  • the object of the invention is to improve a device of the type mentioned in order to achieve an even more controlled movement of the bristle tufts.
  • This object is achieved in a device of the type mentioned above in that a moving in the channel by the gas flow projectile is provided, which is arranged in the conveying direction of the bristle tufts after introduced into the channel bristle tufts and contacted the bristle tufts back and through the channel for tufts suppressed.
  • a projectile which forms an intermediate part which is moved by the gas flow and which mechanically presses against the tufts of bristles and drives it through the channel .
  • the tufts can be compact by the invention already after the tuft picking or brought to the final compactness and optionally already transported through the channels. A densification of the tufts after the channel immediately following tufts is therefore unnecessary. Furthermore, there are no loose bristles in the channel.
  • the projectile is preferably guided exclusively through the channel wall and is mechanically otherwise freely movable in the channel wall, d. H. There is no mechanical coupling to a drive via intermediate components.
  • the projectile is in particular a cylindrical, elongated body or a sphere, preferably made of plastic.
  • a minimum clearance which is smaller than the cross section of a conveyed bristle, preferably less than 0.04 mm, preferably 0.02 mm.
  • the result is a tight fit between projectile and wall, which does not allow flow around the projectile.
  • the tuft does not split in front of the projectile.
  • a seal may be attached, which presses against the channel wall.
  • a plurality of channels and a separate projectile are provided for each channel, so that substantially at the same time the separated several bristle tufts are transported to the tuft picking unit.
  • one advantage of the present invention is that, due to the projectile, the position of the bristles of a tuft is defined in the tuft picking unit. Previously, it could happen that individual bristles were more or less pushed into the tuft pickup, so that the back end of the tufts in the tuft picking unit did not form a unitary structure similar to an end wall. Because the projectile abuts the individual bristles at its rear end, the entire bristle tuft has a unitary structure when seated in the tuft picking unit.
  • the at least one channel may preferably be curved, for example in the form of an arc.
  • a projectile it is particularly surprising to use a projectile here.
  • the length and cross section of the projectile can be tuned to the channel cross section and the curvature of the channel as well as the cross section of the individual bristles so that the projectile easily transports the tufts of bristles through the curved channel without even clamping in the channel.
  • the at least one channel can be formed through the interior of a tube, in particular a bent tube, preferably a metal tube.
  • plastic tubes can be used, but here it must be ensured that due to the gas pressure no expansion of the tubes takes place in such a way that creates a game between the wall and projectile, blowing through the gas, which separates the tufts. It is optionally possible to provide the projectile on the outside with a seal.
  • the plastic pipe as a channel can also stretch locally to push the closed against the projectile or its seal and to have no air gap.
  • the transmission of energy, d. H. the gas flow, on the projectile can be achieved by a compressed air connection.
  • This compressed air connection opens, for example, the back of the projectile in the tuft-transporting device.
  • the arrangement is such that the projectile is supplied with compressed air at the rear.
  • the projectile moves between a home position where it is located prior to transporting the bristle tufts and an end position where it has pushed the tufts of bristles into the tuft picking unit.
  • a return device is present in order to easily transfer the projectile back to the starting position. This is compressed air operated (pressure surge or vacuum) and leads the projectile from the end position back to the starting position.
  • the tuft picking unit may, for example, have a movable support with an opening aligned with the channel end (a plurality of openings corresponding to a plurality of channels), the support being disposed between a receiving position in which the opening receives the bristle tufts and a transfer position remote therefrom in which the bristle tufts the opening is moved out, is movable.
  • the holder can in particular be designed to be movable back and forth or rotating, so that rapidly transported bristle tufts are moved away in cycles for further processing.
  • the holder may have several in succession to the channel ends voran211bare openings and be moved so that during the movement of the filled opening in the transfer position already a free Opening is moved towards the channel, which serves either the next filling and / or only the introduction of compressed gas to move back the projectile.
  • the aforementioned return device can be coupled to the holder such that after removal of the filled opening from the channel end of compressed air against the located at the channel end projectile can be acted upon.
  • the compressed-air connections of the return device open, for example, at free openings in the holder, that is to say at openings which are next filled with bristle tufts.
  • the compressed air connections must be moved very little, because the holder is an intermediate part between the end of the corresponding channel and the compressed air connection.
  • the compressed air connection must be moved only slightly axially to the holder when the projectile is to be moved back.
  • the return device comprises an exchange unit for projectiles, wherein the exchange unit clocks the projectile in its end position outside the associated channel to the starting position.
  • the channels are immediately free again for feeding further tufts, and outside the channels, the projectiles are moved back again.
  • a replaceable plate may be used, e.g. a turntable that clocks back the projectiles in one or more steps.
  • a turntable has distributed over its circumference several openings or carries holding plates with several openings, which are then filled.
  • a movable pin is provided for each opening in the tuft picking unit or the holder, which pushes out the tufts of bristles from the opening of the tuft picking unit or the holder.
  • the transfer to a subsequent part is therefore purely mechanical, so that the perfect geometry of the bristle tufts, with which it sits in the tuft pickup unit, can be further maintained.
  • the bristle holding member may be a head of a brush, a brush head or, for example, a holding plate.
  • the projectile can be accommodated in its initial position in a projectile seat, which is arranged in the transport device for a loading unit for isolated bristle tufts.
  • the loading unit transports the bristle tufts to the beginning of the channel.
  • the channel beginning is thus defined by that part of the channel into which the bristle tufts are inserted.
  • the projectile seat can be reversibly adjusted to and away from the beginning of the channel. This space is created in the initial position of the projectile seat by the movable projectile seat to deliver the bristle tufts in particular laterally to the channel beginning. After fitting the channel with a bristle tuft, the projectile seat is moved in the direction of the beginning of the channel.
  • the projectile seat has z. B. a guide with a projectile stop on which a pressure line opens. Once the projectile has reached the projectile stop, it is in the starting position defined with it. Due to the projectile seat, a good tightness can be achieved, so that all the energy is transferred to the projectile when pressurized.
  • the guide on the projectile seat may have a front end which abuts the back end of the tufted bristle tuft and pushes the bristle tuft into the channel upon delivery of the projectile seat to the bristle tuft.
  • the projectile seat has a dual function, he takes on the projectile and presses shortly before pressurization of the projectile, the bristle tufts in the channel, so that the bristle tufts is guided on the front, before the projectile still acts on it.
  • the channel beginning and / or the guide can have a funnel-shaped extension at their end facing the bristle tufts in order to also support the edge-side bristles of a tuft and press them inwards, so that the tufts of bristles are compact.
  • the loading unit can be run as a laterally in the channel movable plate with a receiving hole for the bristle tufts.
  • a plurality of bristle tuft receiving holes are provided which are aligned with associated channels and projectiles when the plate is in the so-called transfer position.
  • the plate has openings that are large enough to allow the projectile to pass through the aperture.
  • the loading unit can also be moved away before the projectile seat is delivered.
  • the loading unit is so z. B. a kind of intermediate plate between the beginning of the channel and the projectile seat.
  • bristle tufts which have bristles with ends which are sharpened on one or both sides.
  • This sharpening can be done by chemical and / or mechanical processing. Just sharpened bristles were difficult to transport in the past by pure air blasts or vacuum.
  • the projectile also transports such Bristle tufts reliably, for example by pressing against the pointed bristles.
  • FIG. 1 a tuft separating device 10 is shown, which has a magazine 12 with bristles tufts arranged in parallel, the package being provided with bristle tufts with the reference numeral 14.
  • a moving along the open end of the magazine pivot arm 16 has on its outer circumference a plurality of recesses 18 which are filled in the strip along the package 14 thereby separated bristle tufts 20.
  • Not shown in FIG. 1 a complementary to the pivot arm 16 contoured counter-plate which closes the recesses 18 to the outside, so that the bristle tufts 20 are held laterally.
  • the tufts 20 of the transport device are supplied.
  • the swing arm 16 itself can either be in the in FIG. 2 shown tuft-conveying device are formed and form the loading unit 17, as shown at the left end, or the bristle tufts 20 are removed from the pivot arm 16 and inserted into a holder as a loading unit 17 with corresponding receiving holes, which is then transported to the tuft-transporting device.
  • the tuft transport device is shown in detail. It comprises a plurality of, preferably parallel or substantially parallel channels 22, which are formed for example by bent metal tube.
  • the channels have a channel beginning 24, which widens conically.
  • the loading unit 17 is conveyed with the tufts 20 to the channel beginnings 24, in particular by lateral displacement or movement of the bristle tufts 20 together with the loading unit 17 relative to the channels 22.
  • the bristle tufts 20 are opposite the loading unit 17 with their two ends in front.
  • the front end of the bristle tufts adjoins directly to the channel beginnings 24, and the respective rear end adjoins so-called projectile seats 26.
  • projectile seats can be carried out, for example, by a plate having a plurality of bores or by tubes.
  • located in the projectile seats guides 28 are aligned with associated channel beginnings 24. That is, each channel 22 is assigned a projectile seat 26.
  • the rear end of each projectile 30 lies in the in FIG. 2 shown starting position at a bottom or projectile stop 32, in which at the same time a Druckgaszu Beforeö réelle 34 is arranged.
  • This Druckgaszu Beforeö réelle 34 forms a compressed air connection, via the abruptly compressed air can act on the projectile.
  • Each projectile seat 26 thus forms inside the associated projectile a guide 28, wherein the guide 28 widens toward the rear end of the associated bristle tufts 20 in a funnel shape, as in FIG. 2 good to see.
  • the unit of all projectile seats 26 is preferably linearly displaceable in the direction of the channel beginnings 24.
  • a tuft picking unit 36 for example in the form of a plate with openings 38, 38 'at.
  • the tuft picking unit 36 may be configured as a turntable that can be rotated about an axis A, either reversibly or circumferentially.
  • Several groups of openings 38 are provided on this turntable so that, by turning and advancing from one group to the next, a group of openings 38, 38 'are moved laterally away from the channel ends and the next group are moved towards the channel ends and in alignment with them can.
  • one group of openings 38 is positioned below the channel ends and another group of openings 38 'offset by 180 ° in a so-called stuffing station.
  • This stuffing station comprises a plurality of linearly displaceable pins 40, which are aligned with the associated openings 38.
  • the pins 40 are mounted in a guide plate 42.
  • an alignment plate 44 is disposed adjacent, to which in turn directly a bristle holding member 46, here in the form of a small plate, adjacent.
  • the bristle holding member 46 is a part of the later finished brush and is overmolded with the remaining brush body or glued, welded or clipped or is the brush body itself (including style, neck and head).
  • the alignment plate 44 may, but not necessarily, have oblique openings to position, for example, laterally sloping bristle tufts in the bristle holding member 46. It is also possible under certain circumstances for a number of adjacent bristle tufts 20 to be combined to form a large bristle tuft 20, which is then inserted into the bristle holding part 46.
  • FIG. 1 shows the loading of the tuft-transporting device with a group of scattered bristle tufts 20th
  • FIG. 3 shows a subsequent situation in the tuft-transporting device, in which the projectile seats 26 are moved axially to the bristle tufts 20, and because of the funnel-shaped extension they very easily take up the rear ends of the bristle tufts.
  • the projectiles 30 may abut the end face of the tuft picking unit 36, which could be minimally smaller than the tube diameter, in particular less than 0.3 mm in diameter. However, this is not absolutely necessary.
  • the tuft picking unit 36 has a stopper plate under the exit of the openings 38. When the bristle tufts 20 have reached this stop plate, they may still protrude slightly back from the plate-like tuft picking unit 36 so that the projectiles 30 do not abut the tuft picking unit 36 but are still slightly spaced from the tuft picking unit 36 due to the stop of the tufts when they are in her in FIG. 5 are shown end position.
  • the tuft picking unit 36 as shown in FIG. 6 is shown rotated, so that the next free group of openings 38 'is located below the projectiles still in the final position.
  • the special transport device allows the bristle tufts to be compressed as they are taken from the magazine, also conveyed into the tuft picking unit 36 from the projectile and then no longer need to be compressed until they are finally installed in the brush.
  • the openings 38 ' are shown smaller in cross section than the previously filled openings 38.
  • these openings 38 ' would not be used for filling, but would serve only as part of a recirculation unit for the projectiles 30.
  • the openings 38 'to allow it to flow compressed air against the front of the projectiles 30 to move the projectiles 30 via the channels 22 back to the starting position in which they are arranged in the projectile seats 26.
  • the loaded bristle holding members 46 are then removed from the alignment plate 44, preferably by the unit of bristle tufts 20 and Borstenhalteteil 46 is simply pulled out. Usually, the bristles of all bristle tufts are then thermally fused together at the back (here at the top) of the bristle holding part 46.
  • the tuft picking unit must be pivoted again so that the openings 38 are located below the channel ends. Otherwise, the openings 38 'can be large enough to fill them, d. h., the tuft picking unit does not have to be swiveled anymore. In this position, the next group of bristle tufts 20 can then be transported up.
  • the channels 22 may have different distances from each other at the beginning and at the end of the channel or be positioned differently.
  • bristle fields i. H. Groups of bristle tufts 20 are generated on the tuft picking unit 36, which substantially corresponds to the grouping, as it is found later in the bristle holding part of the brush.
  • even minor shifts, transverse movements, etc. take place when the bristle tufts 20, the channels 22 and possibly also the tuft picking unit 36 have left.
  • the bristles of a bristle tuft 20 may be sharpened, at one or both ends.
  • FIG. 10 An alternative recycling device for the projectiles is in FIG. 10 shown.
  • the return device is a change unit for projectiles 30, here a rotary plate or a turntable 50, in which the projectiles 30 sit in their final position.
  • the turntable 50 is then rotated back toward the home position after the projectiles 30 have delivered the bristle tufts.
  • the turntable can be clocked back, for example, in 90 ° or 180 ° increments or in even smaller steps.
  • the cycle time is increased when the projectiles are returned so outside of the channels.
  • the bristle tufts reach the channels 22 in the initial position, a space must be created between the turntable 50 and the channel beginning.
  • the flexible tubes are lifted on a mounting part 52 so that space for lateral feeding of Loading unit 17 is there. Otherwise, the rest of the device may be configured as in the previous embodiment.

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  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Brushes (AREA)
EP16788498.0A 2015-10-26 2016-10-26 Vorrichtung und verfahren zum erzeugen von borstenfeldern fuer buersten Active EP3367843B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
BE2015/5689A BE1023055B1 (de) 2015-10-26 2015-10-26 Vorrichtung und Verfahren zum Erzeugen von Borstenfeldern für Bürsten
PCT/EP2016/075863 WO2017072197A1 (de) 2015-10-26 2016-10-26 Vorrichtung und verfahren zum erzeugen von borstenfeldern fuer buersten

Publications (2)

Publication Number Publication Date
EP3367843A1 EP3367843A1 (de) 2018-09-05
EP3367843B1 true EP3367843B1 (de) 2019-10-09

Family

ID=55221182

Family Applications (1)

Application Number Title Priority Date Filing Date
EP16788498.0A Active EP3367843B1 (de) 2015-10-26 2016-10-26 Vorrichtung und verfahren zum erzeugen von borstenfeldern fuer buersten

Country Status (6)

Country Link
EP (1) EP3367843B1 (es)
CN (1) CN107072391B (es)
BE (1) BE1023055B1 (es)
ES (1) ES2765239T3 (es)
TW (2) TWI697302B (es)
WO (1) WO2017072197A1 (es)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102017125046A1 (de) * 2017-10-26 2019-05-02 Zahoransky Ag Verfahren und Vorrichtung zur Herstellung von Borstenfeldern für Bürsten sowie Borstenherstellungsmaschine
EP3747310A1 (en) * 2019-06-07 2020-12-09 The Procter & Gamble Company Filament transportation device
CN114869044B (zh) * 2022-05-26 2023-03-24 广州傲群刷业科技有限公司 一种用于生产扭线刷的全自动设备
CN115227027B (zh) * 2022-07-04 2024-01-26 深圳市默孚龙科技有限公司 刷丝束成型设备

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0149996A3 (de) * 1984-01-10 1987-10-21 Schlesinger GmbH & Co. Maschinenbau KG Verfahren und Maschine zum Herstellen von Bürsten
EP0405204B1 (de) * 1989-06-24 1994-09-07 Frisetta GmbH Verfahren und Vorrichtung zum Herstellen von Borstenfeldern oder Borstenbündeln
DE3920769A1 (de) * 1989-06-24 1991-01-10 Fritz Rueb Verfahren und vorrichtung zum herstellen von borstenfeldern oder borstenbuendeln
US6290302B1 (en) 1998-07-14 2001-09-18 Firma G.B. Boucherie, Naamloze Vennootschap Method for manufacturing brushes and brush manufacturing machine applying this method
DE102008061384A1 (de) * 2008-12-10 2010-06-24 Frisetta Kunststoff Gmbh Verfahren und Vorrichtung zum Herstellen von Bohrstenfeldern oder von Borstenbündeln
DE102008061389B4 (de) * 2008-12-10 2012-06-28 Frisetta Kunststoff Gmbh Verfahren zum Herstellen von Borstenfeldern mittels Formen
DE102009013723A1 (de) * 2009-03-20 2010-09-23 Zahoransky Ag Verfahren und Vorrichtung zum Herstellen und Bereitstellen von Filamentbündel und Borstenfelder
DE102010055686A1 (de) * 2010-12-22 2012-06-28 Zahoransky Ag Vorrichtung zum Herstellen von Borstenfeldern für Bürsten
EP2534974B1 (en) * 2011-06-15 2015-04-29 Braun GmbH Method for producing a brush head

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None *

Also Published As

Publication number Publication date
TW201815314A (zh) 2018-05-01
BE1023055B1 (de) 2016-11-16
CN107072391B (zh) 2018-12-28
WO2017072197A1 (de) 2017-05-04
ES2765239T3 (es) 2020-06-08
TW201724990A (zh) 2017-07-16
CN107072391A (zh) 2017-08-18
EP3367843A1 (de) 2018-09-05
TWI697302B (zh) 2020-07-01

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