EP0900171B1 - Dispositif tendeur de fil et materiel textile equipe d'un tel dispositif - Google Patents
Dispositif tendeur de fil et materiel textile equipe d'un tel dispositif Download PDFInfo
- 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
- Authority
- 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
Links
- 239000004753 textile Substances 0.000 title claims abstract description 10
- 239000003302 ferromagnetic material Substances 0.000 claims description 3
- 230000005291 magnetic effect Effects 0.000 abstract description 4
- 239000012530 fluid Substances 0.000 abstract 1
- 239000000243 solution Substances 0.000 description 6
- 238000004804 winding Methods 0.000 description 4
- 238000006073 displacement reaction Methods 0.000 description 3
- 238000011144 upstream manufacturing Methods 0.000 description 2
- 239000006096 absorbing agent Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000008188 pellet Substances 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 229910000859 α-Fe Inorganic materials 0.000 description 1
Images
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)
Description
- une poulie montée libre en rotation à l'extrémité d'un axe porté par un boitier, contre la surface de laquelle le fil est en contact ;
- des moyens de freinage de ladite poulie constitués par des aimants permanents disposés concentriquement et bloqués en rotation par rapport à l'axe, et disposés en regard d'une couronne en matériau ferro-magnétique montée sur le palier supportant la poulie ;
- des moyens permettant de faire varier l'écartement entre les aimants et le palier porte-poulie par coulissement de l'un de ces éléments sur l'axe, ces moyens étant constitués par un premier ensemble exerçant une poussée tendant à rapprocher le support des aimants de la couronne associée à la poulie jusqu'à une valeur minimale prédéterminée.
- la figure 1 est une vue d'ensemble d'une machine textile permettant de réaliser le câblage de deux fils élémentaires équipés d'un tendeur conforme à l'invention ;
- la figure 2 est une vue de détail en coupe longitudinale d'un tendeur réalisé conformément à l'invention ;
- la figure 3 est une vue de face d'un tel tendeur montrant la manière dont s'effectue le passage du fil autour de la "poulie" permettant de communiquer la tension ;
- la figure 4 illustre, vue de dessus, une pluralité de tendeurs équipant quatre positions d'une machine textile, reliés à une source d'alimentation d'air sous pression commune.
Claims (4)
- Dispositif tendeur de fil comportant :une poulie (P) montée libre en rotation à l'extrémité d'un axe (15) porté par un boitier (21), contre la surface de laquelle le fil est en contact ;des moyens de freinage de ladite poulie (P) constitués par des aimants permanents (19) disposés concentriquement et bloqués en rotation par rapport à l'axe (15), et disposés en regard d'une couronne (18) en matériau ferro-magnétique montée sur le palier (13) supportant la poulie (P) ;des moyens permettant de faire varier l'écartement entre les aimants (19) et le palier porte-poulie (13) par coulissement de l'un de ces éléments sur l'axe (15), ces moyens étant constitués par un premier ensemble (23,24) exerçant une poussée tendant à rapprocher le support (20) des aimants (19) de la couronne (18) associée à la poulie (P) jusqu'à une valeur minimale prédéterminée,un deuxième ensemble (25,32) exerçant une contre-poussée, de valeur réglable, tendant à écarter les aimants (19) de la couronne (18), lesdits moyens de contre-poussée étant constitués par une source d'air comprimé (36) agissant sur la face (26) d'un piston (32) monté fixe sur l'axe (15), et en appui contre une portée (29) de ce dernier, et dont l'autre face (27) est soumise à l'action des premiers moyens de poussée (23), l'alimentation en air comprimé étant réalisée simultanément sur l'ensemble des tendeurs que comporte la machine par l'intermédiaire d'une ligne pneumatique (37).
- Dispositif selon la revendication 1, caractérisé en ce que la variation de l'écartement entre les aimants (19) et la couronne (18) associée à la poulie (P) est obtenue par déplacement longitudinal desdits aimants (19) sur l'axe (15) portant la poulie, ledit axe étant alors monté fixe sur le bâti de la machine.
- Dispositif selon la revendication 1, caractérisé en ce que la variation de l'écartement entre les aimants (19) et la couronne (18) associée à la poulie (P) est obtenue par déplacement de l'axe (15) supportant ladite poulie, la fixation sur le bâti de la machine étant réalisée par l'intermédiaire du boitier (21) supportant les aimants (19).
- Matériel textile équipé d'un dispositif tendeur selon l'une des revendications 1 et 3, comportant une pluralité de positions de travail identiques, caractérisé en ce que le réglage des dispositifs tendeurs (8) est effectué simultanément sur l'ensemble des délivreurs de la machine qui remplissent la même fonction.
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 (fr) | 1999-03-10 |
EP0900171B1 true EP0900171B1 (fr) | 2000-01-26 |
Family
ID=9491512
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP97914358A Expired - Lifetime EP0900171B1 (fr) | 1996-04-18 | 1997-03-06 | Dispositif tendeur de fil et materiel textile equipe d'un tel dispositif |
Country Status (10)
Country | Link |
---|---|
US (1) | US5943851A (fr) |
EP (1) | EP0900171B1 (fr) |
JP (1) | JP3898763B2 (fr) |
CN (1) | CN1085975C (fr) |
AT (1) | ATE189179T1 (fr) |
AU (1) | AU2163597A (fr) |
DE (1) | DE69701222T2 (fr) |
ES (1) | ES2142150T3 (fr) |
FR (1) | FR2747663B1 (fr) |
WO (1) | WO1997038932A1 (fr) |
Cited By (1)
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 (16)
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 |
DE20305049U1 (de) * | 2003-03-27 | 2004-04-22 | Saurer-Allma Gmbh | Hysterese-Fadenbremse |
EP1462405A1 (fr) * | 2003-03-27 | 2004-09-29 | Saurer-Allma GmbH | Frein de fil à hysteresis |
US20060201129A1 (en) * | 2005-03-09 | 2006-09-14 | Keith Bumgardner | Continuous constant tension air covering |
WO2008039808A2 (fr) | 2006-09-25 | 2008-04-03 | Board Of Regents, The University Of Texas System | Cathodes d'oxyfluorure et d'oxyde de spinelle à substituants cationiques pour batteries au lithium |
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 |
EP4176990A1 (fr) * | 2019-05-20 | 2023-05-10 | Schleuniger AG | Dispositif de redressage permettant de rectifier une conduite, procédé de freinage d'au moins un rouleau rotatif dans un dispositif de redressage, machine d'usinage de câbles dotée d'un dispositif de redressage, ainsi qu'ensemble de mise à niveau pour une machine d'usinage de câbles |
Family Cites Families (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR1187713A (fr) * | 1956-05-11 | 1959-09-15 | Thomson Houston Comp Francaise | Appareil perfectionné de freinage magnétique |
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 |
JPS4881647A (fr) * | 1972-01-12 | 1973-11-01 | ||
US3797775A (en) * | 1973-02-01 | 1974-03-19 | E White | Strand tension control |
DE2819703A1 (de) * | 1978-05-05 | 1979-11-15 | Schlafhorst & Co W | Verfahren und vorrichtung zum betrieb pneumatisch belastbarer fadenbremsen |
JPS59182167A (ja) * | 1983-03-29 | 1984-10-16 | Tanatsuku Eng Kk | マグネツトテンシヨン装置 |
US4557431A (en) * | 1983-08-17 | 1985-12-10 | W. Schlafhorst & Co. | Controllable and adjustable yarn tensioning device |
DE3403144A1 (de) * | 1984-01-31 | 1985-08-14 | Palitex Project-Company Gmbh, 4150 Krefeld | Anordnung zur veraenderung der zugkraft eines laufenden fadens |
FR2664622A1 (fr) * | 1990-07-10 | 1992-01-17 | Mecatex | Dispositif tendeur de fil pour machine textile et plus particulierement pour cantre d'ourdissage. |
DE4130301A1 (de) * | 1991-09-12 | 1993-03-18 | Schlafhorst & Co W | Rotierend angetriebene bremstelleranordnung eines fadenspanners |
DE4301507C2 (de) * | 1993-01-21 | 1995-01-26 | Memminger Iro Gmbh | Fadenbremse |
US5791584A (en) * | 1996-01-25 | 1998-08-11 | Kuroiwa; Sachimasa | Tension control unit for filamentous material |
-
1996
- 1996-04-18 FR FR9605119A patent/FR2747663B1/fr not_active Expired - Fee Related
-
1997
- 1997-03-06 DE DE69701222T patent/DE69701222T2/de not_active Expired - Lifetime
- 1997-03-06 US US09/091,709 patent/US5943851A/en not_active Expired - Fee Related
- 1997-03-06 WO PCT/FR1997/000395 patent/WO1997038932A1/fr active IP Right Grant
- 1997-03-06 EP EP97914358A patent/EP0900171B1/fr not_active Expired - Lifetime
- 1997-03-06 CN CN97191518A patent/CN1085975C/zh not_active Expired - Fee Related
- 1997-03-06 AT AT97914358T patent/ATE189179T1/de not_active IP Right Cessation
- 1997-03-06 JP JP53679097A patent/JP3898763B2/ja not_active Expired - Fee Related
- 1997-03-06 AU AU21635/97A patent/AU2163597A/en not_active Abandoned
- 1997-03-06 ES ES97914358T patent/ES2142150T3/es not_active Expired - Lifetime
Cited By (1)
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 |
---|---|
WO1997038932A1 (fr) | 1997-10-23 |
DE69701222T2 (de) | 2000-09-28 |
DE69701222D1 (de) | 2000-03-02 |
JP3898763B2 (ja) | 2007-03-28 |
US5943851A (en) | 1999-08-31 |
FR2747663A1 (fr) | 1997-10-24 |
ES2142150T3 (es) | 2000-04-01 |
JP2001500462A (ja) | 2001-01-16 |
FR2747663B1 (fr) | 1998-05-22 |
CN1206387A (zh) | 1999-01-27 |
ATE189179T1 (de) | 2000-02-15 |
AU2163597A (en) | 1997-11-07 |
CN1085975C (zh) | 2002-06-05 |
EP0900171A1 (fr) | 1999-03-10 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
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