EP3448202B1 - Vorrichtung zum herstellen von rundbürsten - Google Patents

Vorrichtung zum herstellen von rundbürsten Download PDF

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Publication number
EP3448202B1
EP3448202B1 EP17718363.9A EP17718363A EP3448202B1 EP 3448202 B1 EP3448202 B1 EP 3448202B1 EP 17718363 A EP17718363 A EP 17718363A EP 3448202 B1 EP3448202 B1 EP 3448202B1
Authority
EP
European Patent Office
Prior art keywords
wire
counter
holders
gripper
bending
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
EP17718363.9A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP3448202A1 (de
Inventor
Ettore MAGNI
Enzo Ferrari
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.)
Borghi SpA
Original Assignee
Borghi SpA
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Filing date
Publication date
Application filed by Borghi SpA filed Critical Borghi SpA
Publication of EP3448202A1 publication Critical patent/EP3448202A1/de
Application granted granted Critical
Publication of EP3448202B1 publication Critical patent/EP3448202B1/de
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • 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
    • A46D3/05—Machines for inserting or fixing bristles in bodies for fixing the bristles between wires, tapes, or the like
    • A—HUMAN NECESSITIES
    • A46—BRUSHWARE
    • A46B—BRUSHES
    • A46B3/00—Brushes characterised by the way in which the bristles are fixed or joined in or on the brush body or carrier
    • A46B3/08—Brushes characterised by the way in which the bristles are fixed or joined in or on the brush body or carrier by clamping
    • A—HUMAN NECESSITIES
    • A46—BRUSHWARE
    • A46B—BRUSHES
    • A46B3/00—Brushes characterised by the way in which the bristles are fixed or joined in or on the brush body or carrier
    • A46B3/18—Brushes characterised by the way in which the bristles are fixed or joined in or on the brush body or carrier the bristles being fixed on or between belts or wires
    • A—HUMAN NECESSITIES
    • A46—BRUSHWARE
    • A46B—BRUSHES
    • A46B9/00—Arrangements of the bristles in the brush body
    • A46B9/02—Position or arrangement of bristles in relation to surface of the brush body, e.g. inclined, in rows, in groups
    • A46B9/026—Position or arrangement of bristles in relation to surface of the brush body, e.g. inclined, in rows, in groups where the surface of the brush body or carrier is not in one plane, e.g. not flat
    • 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
    • A46D9/00—Machines for finishing brushes
    • A46D9/02—Cutting; Trimming

Definitions

  • the invention relates to a device for producing round brushes.
  • Round brushes are made by first folding a wire and then pinching bristles between the twisting halves of the wire during a twisting process.
  • Such devices operate at extremely high speeds, and the wire must first be buckled slightly near its center from a linear shape, after which a rotating gripper can grip it.
  • the linear sections of the wire that have not yet been bent are pulled into the twisting area via deflection devices, because the rotating gripper is usually also moved linearly, transversely to the longitudinal extension of the bent wire, so that the wire has to be fed.
  • the pamphlet DE 10 2011 015060 A1 describes a fine device for producing round brushes, which have bristles clamped between two wire sections of a folded wire, with motor-driven drive rollers that move the wire in its longitudinal direction, a bending part that can be moved transversely to the wire, opposing counter-holders that are spaced apart from each other and that are on the bending part are arranged on the opposite side of the wire, whereby the bending part can be fed between the anvils and thereby bends the wire between itself and the anvils into a V-shape or U-shape to form wire halves, a bristle feed device for feeding bristles at the bent wire, and a rotary gripper capable of gripping the bent wire and twisting it as bristles are fed to anchor the bristles in the wire.
  • the object of the invention is to make it as easy as possible to adjust the various functions that must be fulfilled in a device for producing round brushes and to bring about an individual optimization of these various functions.
  • the longitudinal extension or longitudinal direction of the wire is the direction of the wire when it is not yet bent but is only being fed into the device.
  • the wire is linear.
  • the device according to the invention has two opposing counter-holders which are spaced apart from one another and which serve to accommodate the bending part between them when the wire is to be bent for the first time or slightly bent in the middle.
  • deflection devices that are spaced apart from one another, for example in the form of baffles, are also provided for the attachment of the wire.
  • the wire halves are guided along these deflection devices after the wire has been bent or folded in the middle.
  • the deflection devices thus form a transition from the non-bent wire sections of the wire halves to the wire sections leading transversely to the longitudinal direction to the rotatable gripper.
  • the wire rests against these deflection devices when it has to change its direction, namely from the longitudinal direction to the direction running transversely, almost 90° to the gripper.
  • the counter-holder and the deflection devices are different parts and can be brought into contact with the wire one after the other. This is not the case in the prior art because here the counterholder and deflection devices are always the same parts that are permanently in contact with the wire. Due to the fact that counterholder and deflection devices are different parts according to the invention, however, they can individually be optimally adapted to their functions.
  • the counterholders are perfectly matched to the part to be bent between them, in order to perfectly shape and clamp the wire between the counterholders and the part to be bent.
  • the deflection devices can also be optimized.
  • the purpose of the deflection devices is, on the one hand, to deflect the wire and, on the other hand, to offer a certain resistance to the wire, so that the piece of wire between the gripper and the deflection device is kept under tension when it is twisted. Separate braking devices are therefore unnecessary in the device.
  • the anvils and/or the deflection devices are movable so that they can be brought into and out of contact with the wire in order to form a bending surface for the wire along which the wire is moved and bent.
  • the deflection devices as well as the counter-holders can be adjusted in the longitudinal direction of the non-bent wire and/or transversely to the longitudinal direction.
  • the counter-holders are advanced in order to come into contact with the wire, or the deflection devices.
  • the deflection devices are used when the counter-holders have moved away. then the wire that is kinked or bent in the middle is placed against the deflection devices or, conversely, the deflection devices are moved against the wire so that the rotatable gripper can then pull the wire further and this wire presses against the deflection devices.
  • the wire can always remain in the same holder, which is defined, for example, by the drive rollers, while counter holders and deflection devices are delivered. That is, anvils and deflectors can have essentially the same operative position when the wire is in contact with them. Counterholder and deflection devices are only moved alternately into this active position.
  • the motor-driven drive rollers are arranged in the longitudinal direction of the wire outside of the counterholder and deflection devices, i. that is, they take them between them when they are in their operative position. This means that the drive rollers can press and transport wire material in the direction of the counterholders and the deflection devices.
  • Each drive roller can have a counter-roller and form a pair of drive rollers with it, which transports the wire between them and clamps it for the most slip-free transport possible.
  • a motor-driven auxiliary drive roller can be provided which transports wire from a supply to the drive rollers.
  • a wire cutter is preferably provided between the auxiliary drive roller and the nearest drive roller to cut the piece of wire being processed from the wire stock.
  • a simple design of the invention is achieved when the counter-holders are protruding sections of a one-piece bending jaw arranged next to one another.
  • the counterholders thus merge into one another, so to speak, at a connecting bridge.
  • the outer shape of the bent part should be adapted to the shape of the gap between the counter-holders and should be shaped in a complementary manner. Naturally there must still be a small gap to accommodate the wire so that it is not unnecessarily crushed.
  • the deflection devices are designed as baffles with an arcuate bending surface for the wire.
  • the bending surface should be designed as a sliding surface for the wire. Roles are not necessary here and even disadvantageous.
  • a special embodiment of the invention provides that the drive rollers are controlled in such a way that during the twisting of the wire, in particular during the entire twisting process, they press wire sections towards one another and in the direction of the gripper.
  • the propelling force of the gripper is preferably not sufficient to transport the wire further during twisting, i. H. transport non-twisted sections of the ends of the wire halves. This is done by the drive rollers, which in this process state also transport wire to the bending surfaces.
  • a post-processing station can be provided, into which the twisted wire can be inserted and which twists the wire further and/or cuts the bristles on the outside.
  • a particularly effective device results when the post-processing station has a fixed gripper that can grasp the free ends of the wire halves.
  • the device is rotatable or pivotable, e.g. B. It has a rotatable base to which several rotatable grippers are attached.
  • a rotatable gripper that has just been used is transferred from a feed station (this is the station with counterholder and drive rollers) to the post-processing station together with the just twisted wire that it is still gripping.
  • the wire that has just been twisted is gripped by the stationary gripper, with the rotating gripper being set in rotation for further twisting.
  • the stationary gripper can of course also be released, ie set in motion with the rotating gripper via the wire, so that a knife can be moved along the bristles on the outside in order to cut them off.
  • FIG 1 a device 10 for producing round brushes is shown.
  • a stylized supply 12 for wire from which the wire is drawn and transported into the device.
  • a guide 20 is there to act as a counter knife and at the same time guide the wire.
  • a first pair of drive rollers a first motor-driven drive roller 22 and a counter-roller 24 which receive the wire between them.
  • a second pair of drive rollers at a significant distance therefrom comprises a second motor-driven drive roller 26 and a counter-roller 28, which take up the free end of the wire 30 and move it, for example, up to a stop 32.
  • the stop 32 is adjustable, as indicated by the arrows 34, in order to be able to variably set the length of the piece of wire between the blade 18 and the stop 32.
  • the wire 30 runs linearly between the first and second pairs of drive rollers and also up to the auxiliary pair of drive rollers, as shown in FIG figure 1 is good to see.
  • a transverse to the longitudinal direction of the wire or the longitudinal extension of the wire (linear extension in the unbent state according to figure 1 ) reciprocating bending part 38 has a pin 40.
  • This pin 40 faces the wire 30 .
  • a one-piece bending jaw 42 is provided, which comprises two spaced-apart counter-holders 44, which are integrally connected to one another by a web 46 and form a gap 48 between them.
  • the free ends of the anvils each run over an arc 50, which extends over essentially 90°, from the longitudinal direction of the wire 30 to the gap 48, where the arc then essentially merges into a section which is 90° to the longitudinal direction of the Wire 30 runs.
  • two deflection devices 52, 54 are provided which are designed to be adjustable in one or more directions and which are also located between the pairs of drive rollers. As will be explained later, these deflection devices 52, 54 are used when twisting the wire.
  • bristle feeder 56 Shown symbolically is a bristle feeder 56 carrying bristles 58 which are successively received and clamped between the wire halves being formed.
  • Both the counter-holder 42, d. H. the entire bending part 38 as well as the deflection devices 52, 54 can be moved so that they come into action one after the other and are acted upon by the wire 30 one after the other in order to control its bending.
  • the bending part 38 is moved in the direction of the bending jaw 42 in the direction of the arrow, so that the pin 40 grasps the wire in the area of its center, i.e. in relation to the longitudinal extent, and presses it between the counter-holder 44, as in FIG figure 2 , shown above.
  • the peg 40 is made complementary to the recess or gap 48
  • the shape of the bent or kinked portion of the wire 30 is created very precisely (see FIG figure 2 ).
  • both the bending part 38 is moved outwards, as is the bending jaw 42 with the counter-holders 44, as in figure 2 , below, shown with the arrows.
  • the wire 30 then has a bend or kink in its middle.
  • the bending jaw 42 After the bending jaw 42 has been moved laterally, it is preferably also moved into or out of the plane of the drawing to clear the way for a gripper 60 to be fed in from the side, which can be set in rotation by a motor and which can also be moved by motor along a guide 62.
  • the guide 62 extends essentially perpendicularly to the longitudinal direction of the wire 30, always based on the state of the wire in figure 1 .
  • the gripper grasps the so-called eye 64, i. H. the kink or bending point at its tip and clamps it.
  • the deflection devices 52, 54 are moved into their active position according to FIG figure 3 proceedings.
  • This operative position corresponds approximately to the operative position of the counter-holder 44 in figure 1 and figure 2 above.
  • the deflection devices 52, 54 can also be moved from the side, ie in the plane of the drawing or out of the plane of the drawing.
  • the deflectors 52, 54 are formed with an arcuate flexing surface 66 which acts as a sliding surface along which the wire is pulled as the gripper 60 rotates the eyelet 64 while pulling it to the right in the direction of the arrow (see Fig figure 3 ).
  • the linear wire sections of the two wire halves then travel along their arcuate bending surfaces 66 and are drawn into the intermediate space between the deflection devices 52, 54 and are also bent in the process.
  • the arcuate bending surface thus extends through substantially 90°.
  • lateral limiters represented by rollers, can be present here, which prevent the wire from slipping off the respective bending surface 66 .
  • the drive rollers 22, 26 are set in motion, pushing wire material from the two non-bent ends of the wire halves towards one another in the direction of the deflection devices 52, 54 and thus towards the gripper 60 pulling the wire. This is necessary because the feed force of the wire withdrawal gripper is too small to overcome the friction of the wire on the bending surfaces 66 itself.
  • the drive of the gripper 60 for rotation is in particular torque-controlled, it can be achieved by a servomotor.
  • a servomotor preferably all driven drive rollers also use servomotors, which can be adjusted very well with regard to their speed.
  • the deflection devices 52, 54 have a very simple design, they contain hardened surfaces, are therefore very easy to produce from steel and, above all, are very robust.
  • the device can optionally be equipped with a post-processing station in which the bristles are cut, for example (see Fig figure 7 ) where a cutter or knife 70 is traversed along the nearly finished brush while it is rotated.
  • a post-processing station in which the bristles are cut, for example (see Fig figure 7 ) where a cutter or knife 70 is traversed along the nearly finished brush while it is rotated.
  • an additional twisting can also take place in the post-processing station, which bears the reference number 72, as already indicated.
  • the device has a rotatable guide, for example a drum, on which the gripper 60 can move, so that the already twisted wire no longer has to be gripped again.
  • a base 76 can be seen being moved on the guide 74 .
  • the gripper 60 is then moved in the longitudinal direction along the base 76 .
  • Several rotatable grippers 60 sit on the guide 74 and can be clocked in and out in different stations. In the figure 6 upper station is the feeding station, which is just in view figure 1 explained became.
  • An intermediate support 78 supports the free end of the twisted wire as it is withdrawn from the diverters 52,54.
  • the device is then rotated, ie the guide 74 or the base 76 itself is rotated, so that the rotatable gripper 60 ends up in a post-processing station 72 together with the intermediate holder 78 and the wire 30 .
  • a stationary gripper 80 which grips the free ends of the wire 30 .
  • the gripper 80 can be delivered in the linear direction, like that Figures 6 and 7 demonstrate. When the gripper 80 has grasped the free ends, the gripper 60 can turn again, so that twisting is possible. Of course, the gripper 80 could also rotate, this even makes sense for post-processing by cutting.

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Wire Processing (AREA)
  • Brushes (AREA)
  • Tyre Moulding (AREA)
  • Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
  • Massaging Devices (AREA)
EP17718363.9A 2016-04-27 2017-04-19 Vorrichtung zum herstellen von rundbürsten Active EP3448202B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102016107839.5A DE102016107839A1 (de) 2016-04-27 2016-04-27 Vorrichtung zum Herstellen von Rundbürsten
PCT/EP2017/059268 WO2017186539A1 (de) 2016-04-27 2017-04-19 Vorrichtung zum herstellen von rundbürsten

Publications (2)

Publication Number Publication Date
EP3448202A1 EP3448202A1 (de) 2019-03-06
EP3448202B1 true EP3448202B1 (de) 2022-09-07

Family

ID=58578941

Family Applications (1)

Application Number Title Priority Date Filing Date
EP17718363.9A Active EP3448202B1 (de) 2016-04-27 2017-04-19 Vorrichtung zum herstellen von rundbürsten

Country Status (7)

Country Link
US (2) US10932558B2 (zh)
EP (1) EP3448202B1 (zh)
CN (1) CN109152474B (zh)
DE (1) DE102016107839A1 (zh)
ES (1) ES2930806T3 (zh)
TW (1) TWI737719B (zh)
WO (1) WO2017186539A1 (zh)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102016107839A1 (de) * 2016-04-27 2017-11-02 Borghi S.P.A. Vorrichtung zum Herstellen von Rundbürsten

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2483627A (en) 1945-02-03 1949-10-04 Vernon F Dale Method of producing helical brushes
US3254923A (en) * 1964-06-10 1966-06-07 American Tech Mach Co Brush making apparatus and method
FR2793121B1 (fr) 1999-05-07 2002-05-17 Coty Sa Procede d'ablation des poils d'une brosse a mascara et brosse a mascara obtenue par ledit procede
ITBO20040225A1 (it) * 2004-04-20 2004-07-20 Unimac Srl Sistema per alimentara fili in disposizione circolare, particolarmente indicato per macchine automatiche tese a formare spazzole circolari
FR2903283B1 (fr) 2006-07-05 2008-10-17 Alcan Packaging Beauty Serv Procede de fabrication d'applicateurs de produits cosmetiques
BE1017281A3 (nl) 2006-10-31 2008-05-06 Boucherie Nv G B Werkwijze voor het vervaardigen van draadgewikkelde borstels.
DE102011015060B4 (de) * 2011-03-24 2015-07-30 Zahoransky Ag Vorrichtung und Verfahren zum Herstellen von Rundbürsten
DE102016107839A1 (de) * 2016-04-27 2017-11-02 Borghi S.P.A. Vorrichtung zum Herstellen von Rundbürsten

Also Published As

Publication number Publication date
US10932558B2 (en) 2021-03-02
CN109152474B (zh) 2020-09-08
US11737553B2 (en) 2023-08-29
TWI737719B (zh) 2021-09-01
TW201742574A (zh) 2017-12-16
ES2930806T3 (es) 2022-12-22
WO2017186539A1 (de) 2017-11-02
US20210137260A1 (en) 2021-05-13
CN109152474A (zh) 2019-01-04
EP3448202A1 (de) 2019-03-06
DE102016107839A1 (de) 2017-11-02
US20190125069A1 (en) 2019-05-02

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