EP2129258A1 - Dispositif pour arrondir les extrémités de filaments d'une brosse à dents - Google Patents

Dispositif pour arrondir les extrémités de filaments d'une brosse à dents

Info

Publication number
EP2129258A1
EP2129258A1 EP08701144A EP08701144A EP2129258A1 EP 2129258 A1 EP2129258 A1 EP 2129258A1 EP 08701144 A EP08701144 A EP 08701144A EP 08701144 A EP08701144 A EP 08701144A EP 2129258 A1 EP2129258 A1 EP 2129258A1
Authority
EP
European Patent Office
Prior art keywords
tool
guides
drives
guide
axes
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.)
Withdrawn
Application number
EP08701144A
Other languages
German (de)
English (en)
Inventor
Uwe Tretrop
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.)
Braun GmbH
Original Assignee
Braun GmbH
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 Braun GmbH filed Critical Braun GmbH
Publication of EP2129258A1 publication Critical patent/EP2129258A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A46—BRUSHWARE
    • A46D—MANUFACTURE OF BRUSHES
    • A46D9/00—Machines for finishing brushes
    • A—HUMAN NECESSITIES
    • A46—BRUSHWARE
    • A46D—MANUFACTURE OF BRUSHES
    • A46D1/00—Bristles; Selection of materials for bristles
    • A—HUMAN NECESSITIES
    • A46—BRUSHWARE
    • A46D—MANUFACTURE OF BRUSHES
    • A46D1/00—Bristles; Selection of materials for bristles
    • A46D1/02—Bristles details
    • A46D1/0284—Bristles having rounded ends
    • A—HUMAN NECESSITIES
    • A46—BRUSHWARE
    • A46B—BRUSHES
    • A46B2200/00—Brushes characterized by their functions, uses or applications
    • A46B2200/10—For human or animal care
    • A46B2200/1066—Toothbrush for cleaning the teeth or dentures

Definitions

  • the invention relates to a device for rounding filament ends for a toothbrush head, comprising a rounding tool and means for guiding the tool on a path of movement that processes the filaments.
  • Such a device is already known from EP 1 395 144 A1.
  • the device has a designed as a rotatable grinding wheel tool, which describes an elliptical trajectory as feed in the processing of the filaments.
  • the grinding wheel is eccentrically connected to a planetary gear of a planetary gear, which meshes with the internal toothing of a ring gear of the planetary gear.
  • the known rounding device causes the eccentric bearing of the grinding wheel an imbalance, which must be compensated by appropriate countermeasures to avoid such damage to the device.
  • an additional planet gear is provided, which is arranged on the opposite side to the planetary gear driving the grinding wheel and is also in mesh with the internal thread of the ring gear of the planetary gear. Due to such necessary compensatory measures, the known rounding device can be realized only with great technical effort and thus relatively expensive.
  • the known rounding device is limited by design only on the elliptical feed motion path of the tool and is therefore not suitable for moving the tool on other trajectories.
  • the present invention seeks to provide a device for rounding filaments for a toothbrush head with the features mentioned, in which the tool can be moved flexibly on a largely arbitrary trajectory and which is technically easy to implement at the same time.
  • a rounding device which has the features mentioned in claim 1.
  • the rounding device is characterized inter alia by the fact that the guide means are designed as linear guide, by means of which the tool with respect to at least two axes is linearly movable.
  • the tool is virtually traversable on any trajectory in which the tool is moved as needed with respect to the respective axis.
  • the rounding device is thus no longer limited only to an elliptical trajectory of the tool, as is the case with the known device.
  • the e- b boss to be provided in the known device compensating elements can be omitted in the inventive device.
  • the device according to the invention is structurally easy to implement.
  • the device according to the invention is equally applicable to toothbrush filaments which are already fixed in the toothbrush head or which are still pretreated independently of this and in the form of filament bundles, filament strands unwound from filament bobbins and the like. to be provided.
  • the linear guide is formed by at least two, preferably separate guides.
  • the linear guide in a simple manner, for example, by two identical guides produced.
  • a simple mountability of the linear guide is achieved by their multi-part.
  • one of the guides should be assigned to each of the at least two axes in order to be able to move the tool both along one axis and along the other axis by means of a linear guide which can be easily realized.
  • the guides are movable relative to each other.
  • the tool can be moved very flexibly on desired trajectories. In this respect, a high degree of variability in the rounding of the filaments is achieved.
  • At least one of the guides arranged stationary and the other guide is movable relative thereto.
  • This allows a simple orientation of the tool, since a stationary reference system is realized by the fixed arrangement of the guides.
  • a position detection of the tool for example by means of an electronic detection system, is facilitated.
  • the tool or a receptacle for the tool on the movable guide is fixed. As a result, despite the flexibility of the entire device this can be realized in a compact design.
  • the guides are aligned with each other so that the axes are at a predetermined angle to each other. This measure aims to be able to adjust the feed motion of the tool flexibly to a desired trajectory.
  • the guides are arranged or aligned relative to one another such that the axes are at a right angle to each other.
  • the entire device is technically feasible in a simple manner.
  • a particularly large range of motion for the tool can be realized, in which the tool can be guided guided.
  • the guides are coupled together via a moving part, which is preferably movable on one of the guides and on which the other guide is movably held.
  • the tool can be moved over one of the guides along one axis and independently along the other axis, the tool in each case executing a guided feed movement effected by means of the linear guide.
  • the moving part can be designed as a cross slide or swivel carriage, depending on whether the angle between the two guides should be fixed or adjustable.
  • a moving part is understood by the cross slide, in which the guides are held firmly at a right angle to each other.
  • a swivel carriage is understood to mean a movement part in which the guides lie at an angle to one another, which is adjustable.
  • the guides have lateral boundaries to limit the guided travel and to avoid divergence of the guided components from the guides.
  • At least two drives are provided for the linear movement of the tool.
  • This measure results in a high degree of flexibility with regard to the drive options for the plant. convincing.
  • the tool can be moved along the two axes at the same time, whereby the movements along these axes can be realized separately from one another due to the two drives.
  • the drives are designed as rotating drives, which are operatively connected via a coupling gear with the tool.
  • the tool can be driven in a technically simple manner, since on the one hand can be used on low-cost motors and a feed movement of the tool easily in all, by means of the guides approachable positions, can be realized.
  • the drives are speed-controllable and / or reversible in their direction of rotation. This achieves a high degree of flexibility with regard to the drive movement for the tool.
  • the drives are operatively connected to each other via the coupling gear, that in the same direction of rotation of the drives, the tool is moved relative to one of the axes and unequal direction of rotation with respect to the other axis.
  • the method of the tool with respect to the axes is possible in a technically simple manner, since only rotationally reversible drives are required.
  • the cross slide and / or swivel carriage is driven by linear motor direct drives.
  • the measure aims that the coupling mechanism is designed as a traction mechanism, preferably belt transmission.
  • a traction mechanism preferably belt transmission.
  • Such transmissions are easier to produce than, for example, wheel-type transmissions, and to that extent considerably less expensive.
  • the traction mechanism enable a transfer of rotational movements over longer distances.
  • deflection means of the traction mechanism are arranged on the guides and on the moving part, via which the traction means is deflected.
  • a coupling of the guides and the moving part is achieved with the traction mechanism to perform a movement of the tool along the axes can.
  • the traction means should be under prestress, in order to ensure a high degree of operational safety and to prevent the traction means from jumping off the deflection means during operation of the device.
  • the deflecting means are arranged with mutually parallel axes and preferably by the deflection means the traction means is guided in a plane.
  • diversion means such as rollers, which are easy to produce in terms of manufacturing technology.
  • a lateral offset of the traction means over its guided length and thus the risk of a jump-out of the traction means by the deflection means during operation of the device is avoided.
  • the deflecting means associated with the guides are arranged at the opposite ends of the guides.
  • the deflecting means should preferably be arranged on the lateral boundaries of the guides in order to be able to make full use of the travel path provided by the guides.
  • a further embodiment of the invention is that the deflecting means associated with the stationary guide can each be driven by one of the drives.
  • the tool can be moved in dependence on the direction of rotation of the two drives with respect to one or the other axis, provided that the guides are coupled together via a moving part and are at the ends of the guides as well as on the moving part deflection means for the traction means.
  • the traction means has two ends and one of the movable guide associated deflection means is formed for fixing the ends.
  • one of the movable guide associated deflection means is formed for fixing the ends.
  • the traction means is formed circumferentially, ie without beginning and end.
  • the traction means is circulating in gear operation emotional.
  • the circumferential configuration of the traction means is particularly advantageous when different rotational speeds occur between the two drives, since this does not affect the transmission of motion by means of the traction mechanism, but makes itself noticeable only in slip phenomena at the deflection means.
  • the switching of the direction of rotation in the rotating traction means can also be connected relatively slowly and with an occurrence of speed differences between the drives, without resulting in a deterioration of the transmission function.
  • At least one device is provided for controlling and / or regulating at least the direction of rotation and optionally the rotational speed of the drives as a function of predefinable parameters for describing a predetermined trajectory of the tool. This allows the tool in a simple manner fully automatically describe complex predetermined paths with high accuracy in its feed motion. In this respect, a high level of comfort for the operator of the device is achieved.
  • control / regulating device controls or controls the direction of rotation and optionally the speed of the drives in such a way that the path of movement of the tool describes a circular, elliptical, eight-shaped or heart-shaped path. Also mutually angled up and down movements are possible. In this way, the tool can be moved on the usual trajectories for rounding the toothbrush filaments without the need for changeover times to change from one trajectory to another trajectory. This ensures a high degree of flexibility with regard to the feed motion of the tool.
  • the tool for performing a main movement is formed.
  • a particularly effective processing of the filaments is achieved by the tool executing an advancing movement, which is carried out at a predetermined movement. and additionally carries out a main movement, by means of which the processing of the filaments takes place.
  • this main movement should be a rotational movement, so that the processing of the filaments can be carried out for example by means of one or more rotating grinding wheels.
  • the advantage here is that the tool in its speed and direction controllable and independent bzg.
  • the speed and direction of rotation of the drive of the linear axes of motion is. This ensures a particularly high flexibility in the processing of the filaments.
  • a feed unit is provided, by means of which the tool can be moved in the processing position.
  • the tool for example for maintenance purposes, can be moved from its machining position into a maintenance position.
  • the delivery unit serves to influence the process parameters, e.g. the pressure or the force with which press the filament ends on the grinding wheel or to influence the Zustellweges and the delivery speed.
  • the rounding device is preferably used in stuffing plants or spool-feeding plants for producing a toothbrush or its bristles. Also, the rounding device is suitable for use in equipment for making prototypes of toothbrushes and for rounding precut filaments in e.g. Filament bundles or hanks or of filament spools or filament pucks
  • Figure 1 shows a possible embodiment of a device for rounding filaments of a toothbrush head in plan view
  • FIG. 2 shows another possible embodiment of the rounding device as
  • Figure 1 shows - in a schematic representation - a device 1 for rounding filaments of a toothbrush head, where the toothbrush or the toothbrush head is not shown there.
  • a rounding device 1 can be used for example as a separate system as a single system for rounding filament ends without direct involvement in a toothbrush manufacturing plant or integrated into a Bestopfungs- or Spoolfeeding- plant or other Zahnbürstennherstrom.
  • the device 1 has a tool 2 for processing the filaments, which may be designed, for example, as a grinding wheel.
  • the tool 2 can itself carry out a main movement for processing the filaments, such as a rotational movement.
  • the device further comprises means 3 for guiding the tool 2 on a movement path which processes the filaments.
  • This movement path can correspond to the feed movement path of the tool 3. Also, this movement of the tool 2 can be directly the main movement, by means of which the rounding of the filaments is performed.
  • the guide means are formed as a linear guide 3, by means of which the tool 2 with respect to at least two axes 5, 6 is linearly movable.
  • the trajectory of the tool can be made variable by the tool is arbitrarily moved along the axes linearly and thus is no longer set only on a trajectory.
  • the linear guide 3 can be formed by at least two separate guides 7, 8, which are associated with the at least two axes 5, 6 respectively.
  • a high degree of flexibility in terms of the design of the path of movement for the tool 2 is achieved when the guides 7, 8 are movable relative to each other.
  • at least one of the guides 7, 8 arranged stationary and the other guide 8 can be moved relative thereto.
  • movable guide 8 is in the embodiment of Figure 1, the tool 2, preferably fixed via a receptacle 14.
  • the guides 7, 8 are aligned with each other such that the axes 5, 6 are at a right angle to each other. Further, the guides 7, 8 via a moving part 9, which is formed in the manner of a cross slide, coupled together. In this case, the moving part 9 on one of the guides 7, 8 arranged linearly movable. In addition, the other guide 8 is held linearly movable on the moving part 9.
  • the guides 7, 8 In order to limit the movement of the cross slide 9 in the guide 7 and the movement of the guide 8 on the cross slide 9, the guides 7, 8 have lateral boundaries 10, 11, 12, 13.
  • the embodiment of the rounding device 1 according to Figure 1 is constructed such that in the assembled state of the device 1, the linear guide 3 is formed for moving the tool 2 in the horizontal and vertical directions.
  • the device 1 has at least two drives 15, 16 for the linear movement of the tool 2.
  • the drives are designed as rotating drives 15, 16, which are operatively connected via a coupling gear 17 with the tool 2.
  • the coupling gear 17 is in the form of a traction mechanism, such as a belt transmission formed.
  • a traction mechanism such as a belt transmission formed.
  • the cross slide and / or swivel carriage is driven by linear motor direct drives.
  • the drives 15, 16 are both speed-controlled and / or reversible in their direction of rotation.
  • the drives 15, 16 are operatively connected to one another via the coupling gear 17 such that with the same direction of rotation of the drives 15, 16 the tool 2 with respect to one of the axes 5 , 6 and is moved in unequal direction of rotation with respect to the other axis 6.
  • deflection means 18, 19, 20, 21, 22 are arranged as rotatable rollers of the traction mechanism 17 on the guides 7, 8 and on the moving part 9, via which the traction means 24 of the traction mechanism 17 is deflected in the embodiment.
  • the traction means 24 is preferably biased.
  • the deflecting means 18, 19, 20, 21, 22 are arranged with mutually parallel axes and preferably drive the traction means 24 substantially in one plane.
  • the guide means 18, 19, 20, 21 associated with the guides 7, 8 are at the opposite ends of FIG Guides 7, 8, preferably arranged on the lateral boundaries 10, 11, 12, 13 of the guides 7, 8
  • the driven by the drives 15, 16 traction means 24 is in the exemplary embodiment of Figure 1 is a so-called open traction means, with two ends 25, 26 which are fixed to the movable guide 8, preferably at the lateral boundary 14 is preferably used for this purpose Side boundary 13 Part of the receptacle 14 for the tool 2
  • the deflecting means 21 provided there is designed for fixing the ends 25, 26 of the traction means 24
  • the rounding device 1 furthermore has at least one device 27 for controlling and / or regulating at least the direction of rotation and optionally the speed of the drives 15, 16 in dependence on predefinable parameters for describing a predetermined path of movement of the tool 2.
  • the control / regulation means 27 controls or regulates this The direction of rotation and optionally the speed of the drives 8, 9 such that the path of movement of the tool 2 describes a circular, ellipsenformige, eight-shaped or heart-shaped path course, it is also possible by means of Steuerungs- / crizungsein ⁇ chtung 27, the tool 2 on other trajectories than the Basically, a simple Hm and reciprocating the tool 2 or the speed of the grinding wheel and or the feed movement by means of the control and / or regulating device is possible
  • a feed unit 28 can be provided, by means of which the tool 2 can be moved into the machining position, and can be brought, for example, from the machining position into a maintenance position or by means of which the process parameters can be influenced
  • FIG. 2 shows a schematic representation of a further exemplary embodiment of the rounding device 1 components of this exemplary embodiment, which coincide with the components of the exemplary embodiment according to FIG. 1, are denoted by the same reference numerals. see; In this respect, reference is made to the description of the exemplary embodiment according to FIG.
  • the embodiment of the rounding device 1 according to FIG. 2 differs from the exemplary embodiment according to FIG. 1, inter alia in that a circulating traction means 23 is provided.
  • the traction means 23 moves during operation of the device 1 circumferentially with and is not firmly fixed, as in the embodiment of Figure 1, to a lateral boundary 13 of the movable guide 8.
  • the deflection means 18, 19, 20, 21, 22 are preferably designed as rotatable rollers.
  • the operation of the rounding device 1 can be described as follows:

Landscapes

  • Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
  • Brushes (AREA)

Abstract

L'invention concerne un dispositif (1) pour arrondir les filaments d'une tête de brosse à dents, comprenant un outil d'arrondissement (2) et des moyens (3) pour guider l'outil (2) dans un trajet d'usinage des filaments. Les moyens de guidage sont conçus comme guide linéaire (3) pour déplacer l'outil (2) de manière linéaire par rapport aux deux axes (5, 6).
EP08701144A 2007-03-01 2008-01-18 Dispositif pour arrondir les extrémités de filaments d'une brosse à dents Withdrawn EP2129258A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102007009948A DE102007009948A1 (de) 2007-03-01 2007-03-01 Vorrichtung zum Verrunden von Filamentenenden für einen Zahnbürstenkopf
PCT/EP2008/000358 WO2008104248A1 (fr) 2007-03-01 2008-01-18 Dispositif pour arrondir les extrémités de filaments d'une brosse à dents

Publications (1)

Publication Number Publication Date
EP2129258A1 true EP2129258A1 (fr) 2009-12-09

Family

ID=39204807

Family Applications (1)

Application Number Title Priority Date Filing Date
EP08701144A Withdrawn EP2129258A1 (fr) 2007-03-01 2008-01-18 Dispositif pour arrondir les extrémités de filaments d'une brosse à dents

Country Status (5)

Country Link
US (1) US20100048107A1 (fr)
EP (1) EP2129258A1 (fr)
CN (1) CN101621944A (fr)
DE (1) DE102007009948A1 (fr)
WO (1) WO2008104248A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106073156B (zh) * 2016-08-08 2017-10-24 扬州市海星数控制刷设备有限公司 多面刷工作台及多面刷平毛开花一体机

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3063204A (en) * 1959-08-18 1962-11-13 John G Baumgartner Bristle grinding
DE3820372C2 (de) * 1988-06-15 1997-07-24 Coronet Werke Gmbh Verfahren und Vorrichtung zur Herstellung von Borstenwaren
DE8916144U1 (de) * 1989-10-27 1994-03-10 Fa. Anton Zahoransky, 79674 Todtnau Bürstenherstellungsmaschine mit Nachbearbeitungsvorrichtung
US5184433A (en) * 1990-03-16 1993-02-09 Aster Corporation Fiber optic polisher
DE4314692C2 (de) * 1993-05-04 1998-11-26 Zahoransky Anton Gmbh & Co Verfahren und Vorrichtung zur Herstellung von Bürsten
BE1008598A3 (nl) * 1994-08-17 1996-06-04 Boucherie Nv G B Inrichting voor het afronden van de uiteinden van de vezels van borstels.
BE1009349A3 (nl) * 1995-05-04 1997-02-04 Boucherie Nv G B Inrichting voor het afronden van borstelvezels.
US5927819A (en) * 1997-02-28 1999-07-27 Gillette Canada Inc. Method and device for trimming and end-rounding bristles
CH692450A5 (de) * 1997-12-03 2002-06-28 Ewag Ag Programmgesteuerte Schleifmaschine.
US6666524B2 (en) 2001-05-23 2003-12-23 The Gillette Company End-rounding devices and methods for end-rounding
DE10343620A1 (de) * 2003-09-20 2005-04-28 Leibrock Maschinenfabrik Im Un Verfahren und Vorrichtung zum Erfassen der zum Rauen bestimmten Seitenbereiche von auf Leisten aufgebrachten Schuhschäften
DE202004013709U1 (de) * 2004-09-02 2004-11-04 Zahoransky Ag Einrichtung zum Bearbeiten von Borsten

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO2008104248A1 *

Also Published As

Publication number Publication date
DE102007009948A1 (de) 2008-09-04
CN101621944A (zh) 2010-01-06
US20100048107A1 (en) 2010-02-25
WO2008104248A1 (fr) 2008-09-04

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