EP0900171B1 - Fadenspannvorrichtung und textilmaschine mit solcher vorrichtung - Google Patents

Fadenspannvorrichtung und textilmaschine mit solcher vorrichtung Download PDF

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Publication number
EP0900171B1
EP0900171B1 EP97914358A EP97914358A EP0900171B1 EP 0900171 B1 EP0900171 B1 EP 0900171B1 EP 97914358 A EP97914358 A EP 97914358A EP 97914358 A EP97914358 A EP 97914358A EP 0900171 B1 EP0900171 B1 EP 0900171B1
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EP
European Patent Office
Prior art keywords
pulley
magnets
shaft
machine
spacing
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.)
Expired - Lifetime
Application number
EP97914358A
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English (en)
French (fr)
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EP0900171A1 (de
Inventor
Carlos Matas Gabalda
Bernard Puaux
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.)
ICBT Yarn SA
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ICBT Yarn SA
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Filing date
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Application filed by ICBT Yarn SA filed Critical ICBT Yarn SA
Publication of EP0900171A1 publication Critical patent/EP0900171A1/de
Application granted granted Critical
Publication of EP0900171B1 publication Critical patent/EP0900171B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • D—TEXTILES; PAPER
    • D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
    • D02G—CRIMPING OR CURLING FIBRES, FILAMENTS, THREADS, OR YARNS; YARNS OR THREADS
    • D02G3/00—Yarns or threads, e.g. fancy yarns; Processes or apparatus for the production thereof, not otherwise provided for
    • D02G3/22—Yarns or threads characterised by constructional features, e.g. blending, filament/fibre
    • D02G3/26—Yarns or threads characterised by constructional features, e.g. blending, filament/fibre with characteristics dependent on the amount or direction of twist
    • D02G3/28—Doubled, plied, or cabled threads
    • D02G3/285—Doubled, plied, or cabled threads one yarn running over the feeding spool of another yarn
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H59/00—Adjusting or controlling tension in filamentary material, e.g. for preventing snarling; Applications of tension indicators
    • B65H59/10—Adjusting or controlling tension in filamentary material, e.g. for preventing snarling; Applications of tension indicators by devices acting on running material and not associated with supply or take-up devices
    • B65H59/16—Braked elements rotated by material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2701/00—Handled material; Storage means
    • B65H2701/30—Handled filamentary material
    • B65H2701/31—Textiles threads or artificial strands of filaments

Definitions

  • the present invention relates to a new type of thread tensioner usable on any type of textile material, and more particularly on machines for twisting and / or twisting yarns of any kind.
  • a device according to the preamble of claim 1 is known from document DE-A-2 016 263.
  • tensioning devices which include on the one hand, a pulley whose periphery has a friction layer and is in contact with the wire over at least part of its circumference, and on the other hand, means for braking said pulley.
  • These means of pulley braking consist of an eddy current brake having the form of an asynchronous type motor whose rotor is integral with the pulley shaft and whose stator windings are powered by an adjustable direct current source.
  • Such a type of tensioner which, in general, corresponds to the device making the subject of US-A-3 797 775, is not satisfactory, in particular by the fact that it requires a power supply and therefore it is necessary to have as many power connections as there are tensioning devices.
  • the aforementioned FR-A-2 145 056 aims to overcome this drawback, the braking device which he describes being constituted by a generator electric whose rotor is secured to the pulley shaft, and whose armature is connected to a load resistor, the magnetic field of the generator being supplied by a permanent magnet.
  • FR-A-2 167 957 describes a solution in which braking for wire guidance is obtained by making a magnet whose number of magnetic poles is even, this magnet being placed opposite a disc the face of which is pierced with several holes, disc which supports the pulley of wire guide. Braking of the pulley is obtained by varying the distance between the disc and the magnet.
  • the device according to the invention is characterized in that the means for adjusting the spacing between the magnets and the pulley to be braked, comprise a second assembly exerting a counter-thrust, of adjustable value, tending to separate the magnets relative to the surface of the crown, said counter-thrust means being constituted by a source of compressed air acting on the face of a piston mounted fixed on the axis, bearing against a bearing surface of the latter, and the other of which face is subjected to the action of the first thrust means, the supply of compressed air being carried out simultaneously on all the tensioners that the machine comprises via a common pneumatic line.
  • the variation of the spacing between the magnets and the crown associated with the pulley to adjust the tension communicated to the wire by the tensioner can, according to the invention, be obtained either by displacement longitudinal of said magnets on the axis carrying the pulley, said axis being then fixedly mounted on the machine frame, either by displacement of the axis support of said pulley, the attachment to the frame of the machine then being produced through the box supporting the magnets.
  • Figure 1 illustrates, schematically and viewed from the side, a working position of a so-called "direct cable” textile machine, allowing two elementary wires to be assembled by false twist.
  • each working position therefore makes it possible to join by twisting two elementary wires (A, B) from two power sources (1,2).
  • the wire (A) from the spool (1) passes through a turntable (3) or the like so as to form a balloon (4) inside which is arranged the power source (2) for the wire (B).
  • the assembly of the two wires (A) and (B) is obtained by twisting at the meeting point (5), then the cable (6) formed is returned conventionally, for example on a winding system (7) not imparting additional torsion.
  • the call of the two wires (A) and (B) constituting the cable (6) is given by the winding speed in (7).
  • tensioning systems (8,9) are provided for each wires (A, B).
  • the tensioner (8) adjusts the reserve length of the wire (A) around the plate (3) and acts as a shock absorber which absorbs jolts reel reel (1), which keeps a balloon (4) very regular.
  • the tensioner according to the invention is particularly suitable for be used to give tension to the wire (A) which passes inside the turntable (3) and forms the balloon (4).
  • the stranding machine equipped with tensioners (8) according to the invention is therefore consisting of a plurality of identical working positions arranged side by side side by side, the tensioners (8) to ensure the tension of the wire (A) coming from the support (1) carried by a creel arranged, in the case present, on the upper part of the machine, are mounted individually on a support plate (35) carried by said frame.
  • the positioning of these tensioners is advantageously located on the machine frame at the level of the winding system, in front of it, the wire (B) being brought directly to the brake (9) located upstream of the wiring point (6) in the extension of the axis of the power source (2) of the wire (B).
  • the tensioner (8) has as an element to communicate the tension in the wire a pulley consisting of two cups (11,12) between which the wire passes (A), these cups being mounted on a hub (13) which is itself mounted free in rotation by means of bearings (14) the end of a tree (15). Said cups (11,12) are blocked on the hub via a nut-shaped assembly (16), which allows to adjust the pressure of the cups one against the other and consequently the tension that they apply to the wire.
  • the wire (A) passes through space between the two cups and is maintained at their zone interpenetration, the wire envelope around said cups being determined by two guides (17,39) (shown only in FIG. 3), arranged respectively upstream and downstream of the support plane.
  • the hub (13) which supports the pulley has on its face opposite said pulleys, a crown (18) made of a ferro-magnetic material such as for example based on ferrite.
  • the means for braking the pulley are constituted by a plurality of permanent magnets (19) the number of two in this case, and in the form of pellets having a diameter of 15 mm. These magnets are mounted concentrically with the shaft (15) on a support (20), itself immobilized inside a case (21). The support (20) is locked by means of screws (22), is immobilized in rotation relative to the shaft (15), but is however free in translation relative to the latter.
  • the tensioner includes means allowing the spacing between the magnets (19) and the crown (18) carried by the pulley, this variation being between a minimum value of 1 mm, which avoids any risk interference due to geometric defects and maximum spacing, function of the power of the magnets, which in this case is 4 mm.
  • These means for adjusting include all first a first thrust assembly which tends to bring the support closer (20) magnets (19) of the crown. This movement is limited by one predetermined minimum value and is obtained, in this case, by a assembly in the form of a spring (23) arranged around the shaft (15) and in support, on the one hand on a fixed annular bearing (24) integral with the housing (21) and, on the other hand, on the rear face of a piston (32) integral with the shaft (15), which allows sliding of the housing (21) relative to the assembly (32-15).
  • the housing (21) is designed to so as to present on its rear face (33) a shoulder (34), which therefore makes it possible to produce a chamber (25) between the bottom of the case and the face (26) of the piston, the other face of the piston pressing against a shoulder provided on the shaft (15).
  • Seals (30) and (31) are provided to ensure the sealing of the chamber (25). Inside this chamber (25), opens the inlet (36) of a compressed air supply.
  • the tree (15) is fixedly mounted on a support (35) integral with the machine frame.
  • the displacement of the magnets relative to the pulley is obtained by moving the housing that supports the magnets on the shaft which is kept fixed on the machine. It could be considered to proceed in reverse, that is to say to mount the fixed box on the machine, which will then cause the pulley to move relative to said housing.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Tension Adjustment In Filamentary Materials (AREA)
  • Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
  • Spinning Or Twisting Of Yarns (AREA)
  • Treatment Of Fiber Materials (AREA)

Claims (4)

  1. Fadenspannvorrichtung, mit:
    einer an dem Ende einer durch ein Gehäuse (21) getragenen Achse (15) frei drehbar montierten Rolle (P), mit deren Oberfläche der Faden in Berührung steht;
    Bremsmitteln für die Rolle (P), die durch Permanentmagnete (19) gebildet sind, die bezüglich der Achse (15) konzentrisch angeordnet und dreharretiert sind, und die einer Krone (18) aus ferromagnetischem Material, die auf dem die Rolle (P) tragenden Lager (13) montiert ist, gegenüberstehend angeordnet sind;
    Mitteln, die es ermöglichen, den Abstand zwischen den Magneten (19) und dem Rollenträgerlager (13) durch Verschieben eines dieser Elemente auf der Achse (15) zu verändern, wobei diese Mittel aus einer ersten Anordnung (23, 24) gebildet sind, die eine Schubkraft ausüben, die dazu dient, den Träger (20) der Magnete (19) der der Rolle (P) zugeordneten Krone (18) bis auf einen vorbestimmten minimalen Wert anzunähern, dadurch gekennzeichnet, daß:
       die Mittel zum Einstellen des Abstands zwischen den Magneten (19) und der zu bremsenden Rolle (P) aufweisen:
    eine zweite Anordnung (25, 32), die eine Gegenschubkraft von einstellbarem Wert ausübt, die dazu dient, die Magnete (19) von der Krone (18) zu beabstanden, wobei die die Gegenschubkraft aufbringenden Mittel durch eine Druckluftquelle (36) gebildet sind, die auf die Seite (26) eines auf der Achse (15) feststehenden und gegen eine Lagerfläche (29) derselben anliegenden Kolbens (32) wirkt, dessen andere Seite (27) der Wirkung der ersten die Schubkraft aufbringenden Mittel (23) unterworfen ist, wobei die Druckluftzufuhr gleichzeitig auf die Gesamtheit der Spanner, die die Maschine aufweist, mittels einer Pneumatikleitung (37) erfolgt.
  2. Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, daß die Veränderung des Abstands zwischen den Magneten (19) und der der Rolle (P) zugeordneten Krone (18) durch Verrücken der Magnete (19) in Längsrichtung auf der Achse (15), die die Rolle trägt, erzielt wird, wobei die Achse dann fest an dem Rahmen der Maschine montiert ist.
  3. Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, daß die Veränderung des Abstandes zwischen den Magneten (19) und der der Rolle (P) zugeordneten Krone (18) durch Verrücken der die Rolle tragenden Achse (15) erzielt wird, wobei die Befestigung an dem Rahmen der Maschine mittels des die Magnete (19) tragenden Gehäuses (21) bewerkstelligt ist.
  4. Textilmaschine, die mit einer Spannvorrichtung nach einem der Ansprüche 1 und 3 ausgerüstet ist, mit einer Mehrzahl von identischen Arbeitsstationen, dadurch gekennzeichnet, daß die Einstellung der Spannvorrichtungen (8) gleichzeitig auf der Gesamtheit der Übergeber der Maschine, die die gleiche Funktion erfüllen, bewirkt wird.
EP97914358A 1996-04-18 1997-03-06 Fadenspannvorrichtung und textilmaschine mit solcher vorrichtung Expired - Lifetime EP0900171B1 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
FR9605119 1996-04-18
FR9605119A FR2747663B1 (fr) 1996-04-18 1996-04-18 Dispositif tendeur de fil et materiel textile equipe d'un tel dispositif
PCT/FR1997/000395 WO1997038932A1 (fr) 1996-04-18 1997-03-06 Dispositif tendeur de fil et materiel textile equipe d'un tel dispositif

Publications (2)

Publication Number Publication Date
EP0900171A1 EP0900171A1 (de) 1999-03-10
EP0900171B1 true EP0900171B1 (de) 2000-01-26

Family

ID=9491512

Family Applications (1)

Application Number Title Priority Date Filing Date
EP97914358A Expired - Lifetime EP0900171B1 (de) 1996-04-18 1997-03-06 Fadenspannvorrichtung und textilmaschine mit solcher vorrichtung

Country Status (10)

Country Link
US (1) US5943851A (de)
EP (1) EP0900171B1 (de)
JP (1) JP3898763B2 (de)
CN (1) CN1085975C (de)
AT (1) ATE189179T1 (de)
AU (1) AU2163597A (de)
DE (1) DE69701222T2 (de)
ES (1) ES2142150T3 (de)
FR (1) FR2747663B1 (de)
WO (1) WO1997038932A1 (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102005049376A1 (de) * 2005-10-15 2007-04-19 Saurer Gmbh & Co. Kg Fadenbremse

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3870797B2 (ja) * 2002-02-15 2007-01-24 ブラザー工業株式会社 糸調子装置
EP1462405A1 (de) * 2003-03-27 2004-09-29 Saurer-Allma GmbH Hysterese-fadenbremse
DE20305049U1 (de) * 2003-03-27 2004-04-22 Saurer-Allma Gmbh Hysterese-Fadenbremse
RU2271982C1 (ru) * 2004-10-05 2006-03-20 Государственное образовательное учреждение высшего профессионального образования Южно-Российский государственный технический университет (Новочеркасский политехнический институт) Натяжное устройство
US20060201129A1 (en) * 2005-03-09 2006-09-14 Keith Bumgardner Continuous constant tension air covering
EP2067198A2 (de) 2006-09-25 2009-06-10 Board of Regents, The University of Texas System Kationensubstituierte spinelloxid- und oxyfluorid-kathoden für lithium-ionen-batterien
JP2009209475A (ja) * 2008-03-04 2009-09-17 Murata Mach Ltd 撚糸機
DE102008033849A1 (de) * 2008-07-19 2010-01-21 Oerlikon Textile Gmbh & Co. Kg Verfahren zum Betreiben einer Spindel einer Doppeldrahtzwirn- oder Kabliermaschine
DE102010023140A1 (de) 2010-06-09 2011-12-15 Honigmann Industrielle Elektronik Gmbh Hystereseeinheit
CN102285556A (zh) * 2010-06-19 2011-12-21 卡尔迈耶纺织机械股份有限公司 纱线张力器
CN102094271B (zh) * 2011-03-24 2012-07-11 张朝山 多极磁性阻尼张力控制器
CN102212905B (zh) * 2011-06-10 2013-07-24 宜昌经纬纺机有限公司 一种用于直捻机的外纱张力调节方法
DE102011113614A1 (de) * 2011-09-16 2013-03-21 Oerlikon Textile Gmbh & Co. Kg Fadenlieferwerk
CN102807134B (zh) * 2012-08-23 2014-03-12 青岛宏大纺织机械有限责任公司 自动络筒机张力控制装置
KR101456146B1 (ko) * 2014-08-14 2014-11-04 국방과학연구소 브레이드기용 자동 장력 조절형 실 공급 장치
CN108750804B (zh) * 2018-06-05 2024-01-05 青岛宏大纺织机械有限责任公司 一种络筒机卷绕支撑装置
EP4176990B1 (de) * 2019-05-20 2025-07-09 Schleuniger AG Verfahren zum bremsen von zumindest einer drehbaren rolle einer richtvorrichtung, kabelverarbeitungsmaschine mit einer richtvorrichtung

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CH515362A (fr) * 1969-04-19 1971-11-15 Monney Michel Dispositif de mise en tension du fil sur une machine textile, notamment sur une machine à tricoter
FR2145056A5 (en) * 1971-07-07 1973-02-16 Inst Textile De France Yarn tensioning device - including yarn tensioning roller connected to generator rotor
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FR2664622A1 (fr) * 1990-07-10 1992-01-17 Mecatex Dispositif tendeur de fil pour machine textile et plus particulierement pour cantre d'ourdissage.
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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102005049376A1 (de) * 2005-10-15 2007-04-19 Saurer Gmbh & Co. Kg Fadenbremse

Also Published As

Publication number Publication date
ES2142150T3 (es) 2000-04-01
DE69701222T2 (de) 2000-09-28
JP3898763B2 (ja) 2007-03-28
DE69701222D1 (de) 2000-03-02
FR2747663B1 (fr) 1998-05-22
AU2163597A (en) 1997-11-07
WO1997038932A1 (fr) 1997-10-23
EP0900171A1 (de) 1999-03-10
US5943851A (en) 1999-08-31
FR2747663A1 (fr) 1997-10-24
CN1206387A (zh) 1999-01-27
ATE189179T1 (de) 2000-02-15
JP2001500462A (ja) 2001-01-16
CN1085975C (zh) 2002-06-05

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