EP0851047A1 - Dispositif d'actionnement à sélection électromagnétique pour la commande des ratières et autres mécaniques de tissage - Google Patents
Dispositif d'actionnement à sélection électromagnétique pour la commande des ratières et autres mécaniques de tissage Download PDFInfo
- Publication number
- EP0851047A1 EP0851047A1 EP97420242A EP97420242A EP0851047A1 EP 0851047 A1 EP0851047 A1 EP 0851047A1 EP 97420242 A EP97420242 A EP 97420242A EP 97420242 A EP97420242 A EP 97420242A EP 0851047 A1 EP0851047 A1 EP 0851047A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- selector
- electromagnet
- armature
- opposite
- control members
- 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.)
- Granted
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Classifications
-
- D—TEXTILES; PAPER
- D03—WEAVING
- D03C—SHEDDING MECHANISMS; PATTERN CARDS OR CHAINS; PUNCHING OF CARDS; DESIGNING PATTERNS
- D03C3/00—Jacquards
- D03C3/20—Electrically-operated jacquards
-
- D—TEXTILES; PAPER
- D03—WEAVING
- D03C—SHEDDING MECHANISMS; PATTERN CARDS OR CHAINS; PUNCHING OF CARDS; DESIGNING PATTERNS
- D03C1/00—Dobbies
-
- D—TEXTILES; PAPER
- D03—WEAVING
- D03C—SHEDDING MECHANISMS; PATTERN CARDS OR CHAINS; PUNCHING OF CARDS; DESIGNING PATTERNS
- D03C1/00—Dobbies
- D03C1/14—Features common to dobbies of different types
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F7/00—Magnets
- H01F7/06—Electromagnets; Actuators including electromagnets
- H01F7/08—Electromagnets; Actuators including electromagnets with armatures
- H01F7/14—Pivoting armatures
Definitions
- the present invention relates to dobbies and the like. weaving mechanics for crowd training on weaving machines, and it relates more particularly to electromagnetic selection actuators which, in conjunction with reading devices, provide control mechanics of this type depending on the armor to be produced on the fabric being woven.
- Document FR-A-2 515 703 (STAUBLI) describes a device actuator of this kind which includes a series of electromagnets in number equal to that of the mechanical blades, i.e. amplifier systems and smooth carried by the weaving machine. Electromagnets, supplied through the reading device according to the armor program, are assembled on a single chassis which is driven by an oscillating movement linked to that of mechanics and which carries, on each blade, a pivoting selector associated with elastic means which tend to separate it from poles of attraction of the electromagnet considered.
- Each selector is thus driven by an alternative movement which approach and move it cyclically away from the tails of the two actuators ensuring control of the amplifier system envisaged, the selection between the two organs of each pair being operated by the corresponding electromagnet, according to whether or not it is powered by the reading device of the mechanical.
- the object of the present invention is more particularly to remedy the aforementioned drawbacks of conventional devices, and this by arranging each pivoting selector so that it give a motion amplification coefficient such that its selective displacement takes place in a clear and precise manner despite a very low air gap value.
- the invention essentially consists in providing each pivoting selector of a movable armature which is articulated on said selector by its end turned towards the axis pivot it, and to associate with this frame mobile elastic return means which act on the opposite end in order to maintain the latter at permanent contact of the corresponding pole of the fixed armature of the electromagnet envisaged and, while thus ensuring by reaction the selector recall to the discarded position, to move away the opposite side of this selector from the other pole of said fixed armature, thereby creating the air gap necessary for functioning of the whole.
- the actuating device according to FIG. 1 is mounted on an oscillating frame formed by two lateral arms 1 connected by a longitudinal cross member 2.
- Each of the arms 1, mounted on a fixed axis 3, is equipped with a roller 4 which suitable elastic means maintain in contact with a rotating cam 5, the two cams of the system thus ensuring the cyclic oscillation of the chassis 1-2 around the axis 3, in the manner illustrated by the arrow F 1 .
- the block is fixed which contains all of the control electromagnets 6 supplied by the reading device (not shown) of the mechanics considered.
- a pivoting selector 7 mounted on a fixed axis 8 which connects the two arms 1 parallel to the cross member 2 of the chassis 1-2.
- the selectors 7 are arranged side by side on the axis 8, with minimal play so as to be arranged opposite the poles of attraction of the different electromagnets 6.
- Each selector 7 is intended to ensure control selective of one or the other of the two tilting members 9 and 10 which ensure the actuation of the blade considered of the mechanical. All of the members 9 are carried by a fixed axis 11 while the pivot axis of the members 10 is advantageously constituted by the tilting axis 3 of the chassis 1-2.
- each selector 7 is equipped, at the level of that of its edges which is turned in the direction of the electromagnet 6, with a movable frame 12 formed by a plate whose face faces away from the frame 6 a -6 b of each electromagnet 6 is integral with a thin strip 12 a introduced into a cavity 7 a formed in the thickness of the body of the selector, advantageously made of synthetic material.
- the end of the bar 12 a which is adjacent to the pivot axis 8 is articulated inside its cavity 7 a on a small pivot 7 b , while the opposite end of the frame 12 receives the permanent action of a spring 13 engaged in a blind housing 7 c of the selector body.
- the tip 7 d which equips each selector 7 opposite the pivot axis 8 is arranged opposite the tail 9 a of the member 9, so that, when in its oscillating movement the chassis 1-2 operates the lowering of the block of electromagnets 6, said tip 7 d comes to bear against the tail 9 a which is thus spaced from the fixed stop 14 against which it was applied by a spring 15 (see fig. 1).
- the tip 7 d is then placed opposite the tail 10 a of the member 10 which is therefore actuated during the oscillating movement of the chassis 1-2.
- the air gap visible in fig. 3 is very small, so that the effect generated by the magnetic flux is very large, which makes it possible to have recourse to electromagnets of reduced dimensions and low consumption. Although this air gap is small, the particular geometry of the device creates an amplifying effect and allows a large displacement at the point 7 d .
- the spring 13 automatically switches selector 7 from position according to fig. 2 to that according to fig. 3.
- the amplitude of the angular displacement of the selector 7 is limited by the range of the tip 7 d against one or the other of two stops 9 b , respectively 10 b , provided for this purpose at the end of the tails 9 a , 10 has organs 9, 10.
- Each selector 7 is advantageously produced by injection and molding of a non-magnetic material, inside which is directly embedded the end of the tip 7 d , made of steel.
- the whole 7-12 is very compact. Its useful stroke is very large and the electromagnet works with very good efficiency, while the inevitable inaccuracies of the system are absorbed by the fact that the movable armature is always in abutment against the fixed armature 6 a -6 b by at least one of its ends.
- each balance 16 carries two pivoting coupling hooks at its ends 17 which are intended to cooperate with control members 9 and 10, here in the form of tilting hooks which a spring 15 tends to be kept elastically applied against fixed stops 18.
- control members 9 and 10 here in the form of tilting hooks which a spring 15 tends to be kept elastically applied against fixed stops 18.
- oscillating chassis 1-2 forming a support for a block of electromagnets 6, each of these ensuring the control of a single selector 7 provided with a movable armature 12 identical to that according to the embodiment of FIG. 1.
- Each selector 7 is equipped with two points 7 d oriented opposite one another in order to ensure the actuation of the members or hooks 9 and 10 coming from, during the oscillating movement of the chassis 1-2, in contact with ranges 9 a , 10 has hooks.
- the electromagnet 6 considered is supplied, the movable armature 12 is attracted against the fixed armature, so that the selector 7 switches around its axis 8 and comes to the oblique position shown in broken lines ; the oscillation of the chassis 1-2 continues, but the tips 7 d cannot come into contact with the bearings 9 a and 10 a , so that the members with hooks 9 and 10 are not controlled.
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Power Engineering (AREA)
- Electromagnets (AREA)
- Looms (AREA)
- Knitting Machines (AREA)
- Accommodation For Nursing Or Treatment Tables (AREA)
- Percussion Or Vibration Massage (AREA)
Abstract
Description
- Fig. 1 est une coupe transversale montrant schématiquement l'agencement d'un dispositif d'actionnement suivant l'invention au niveau de chacune des lames d'une ratière du type rotatif.
- Fig. 2 et 3 illustrent à plus grande échelle le fonctionnement sélectif de l'un des sélecteurs pivotants du dispositif suivant fig. 1.
- Fig. 4 illustre une variante de mise en oeuvre de l'invention.
Claims (6)
- Dispositif d'actionnement à sélection électromagnétique pour la commande des ratières et autres mécaniques de tissage, du genre comportant pour chaque lame un électro-aimant (6) qui est porté par un châssis (1-2) animé d'un mouvement oscillant et auquel est associé un sélecteur pivotant (7) qui, rappelé par des moyens élastiques (13), est destiné à venir actionner sélectivement l'un ou l'autre de deux organes de commande (9, 10), lequel électro-aimant (6) est alimenté en fonction de l'armure désirée pour le tissu en cours de réalisation, caractérisé en ce que chaque sélecteur (7) est équipé d'une armature mobile (12) qui est articulée sur ledit sélecteur par son extrémité tournée en direction de l'axe de pivotement (8) de celui-ci, tandis que les moyens élastiques de rappel (13) sont agencés de façon à agir sur l'extrémité opposée de ladite armature mobile en vue de maintenir cette dernière au contact permanent du pôle (6a) correspondant de l'armature fixe (6a-6b) de l'électro-aimant (6) et, tout en assurant par réaction le rappel du sélecteur à la position écartée, d'éloigner la partie opposée de ce sélecteur de l'autre pôle (6b) de ladite armature fixe, en créant ainsi l'entrefer nécessaire au fonctionnement de l'ensemble.
- Dispositif suivant la revendication 1, caractérisé en ce qu'à l'opposé de l'armature fixe (6a-6b), le sélecteur (12) est solidaire d'une barrette mince (12a) logée dans une cavité (7a) ménagée dans le corps dudit sélecteur, l'une des extrémités de cette barrette étant montée sur un pivot (7b) prévu transversalement à l'une des extrémités de ladite cavité.
- Dispositif suivant l'une quelconque des revendications 1 à 2, caractérisé en ce que certains (10) des organes de commande pivotent sur l'axe de basculement (3) du châssis oscillant (1-2).
- Dispositif suivant l'une quelconque des revendications 1 à 3, caractérisé en ce que chacun des organes de commande (9, 10) comporte une butée (9b, 10b) agencée pour limiter l'amplitude du déplacement angulaire du sélecteur (7).
- Dispositif suivant l'une quelconque des revendications 1 à 4, caractérisé en ce que le sélecteur (7) est réalisé en une matière amagnétique conformée par moulage dans laquelle est enrobée une pointe métallique (7d) destinée à venir porter contre les organes de commande (9, 10).
- Dispositif suivant la revendication 5, caractérisé en ce que le sélecteur (7) comporte deux pointes (7d) orientées à l'opposé l'une de l'autre pour assurer l'actionnement de deux organes de commande (9, 10) en forme de crochets basculants, agencés pour coopérer avec les crochets d'attelage (16) de l'une des balances (17) de la ratière.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR9616393A FR2757884B1 (fr) | 1996-12-31 | 1996-12-31 | Dispositif d'actionnement a selection electromagnetique pour la commande des ratieres et autres mecaniques de tissage |
FR9616393 | 1996-12-31 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0851047A1 true EP0851047A1 (fr) | 1998-07-01 |
EP0851047B1 EP0851047B1 (fr) | 2000-04-05 |
Family
ID=9499449
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP97420242A Expired - Lifetime EP0851047B1 (fr) | 1996-12-31 | 1997-12-23 | Dispositif d'actionnement à sélection électromagnétique pour la commande des ratières et autres mécaniques de tissage |
Country Status (8)
Country | Link |
---|---|
US (1) | US5908051A (fr) |
EP (1) | EP0851047B1 (fr) |
JP (1) | JP3545186B2 (fr) |
KR (1) | KR100418082B1 (fr) |
CN (1) | CN1058305C (fr) |
DE (1) | DE69701619T2 (fr) |
ES (1) | ES2144303T3 (fr) |
FR (1) | FR2757884B1 (fr) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1936014A1 (fr) | 2006-12-21 | 2008-06-25 | STAUBLI Faverges | Bloc électro-aimant et dispositif de sélection électromagnétique du mouvement des lames de ratieres et autres mécaniques de formation de la foule |
EP2460918A1 (fr) | 2010-12-06 | 2012-06-06 | Staubli Faverges | Dispositif de sélection pour le contrôle d'une ratière, ensemble de sélection et ratière contrôlée par un tel dispositif de sélection |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7475708B2 (en) * | 2004-11-17 | 2009-01-13 | Groz-Beckert Kg | Shaft drive for heald shafts of weaving machines |
CN101054752B (zh) * | 2007-04-28 | 2010-08-04 | 江苏万工科技集团有限公司 | 一种电子提花机的控制系统 |
EP2014805B1 (fr) * | 2007-07-12 | 2011-12-14 | Groz-Beckert KG | Dispositif de commande pour un embrayage principal d'une ratière |
CN105525411B (zh) * | 2016-01-26 | 2017-03-08 | 常熟纺织机械厂有限公司 | 具有对电磁阀助吸功能的消极式电子多臂装置的选针机构 |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0068139A1 (fr) * | 1981-06-26 | 1983-01-05 | Textilma AG | Dispositif d'accouplement, plus particulièrement pour un métier à tisser |
FR2515703A1 (fr) * | 1981-11-05 | 1983-05-06 | Staubli Sa Ets | |
EP0324423A2 (fr) * | 1988-01-14 | 1989-07-19 | EASTMAN KODAK COMPANY (a New Jersey corporation) | Dispositif de commande électromagnétique pour les caméras |
EP0606517A1 (fr) * | 1992-12-25 | 1994-07-20 | Kabushiki Kaisha Yamada Dobby | Ratière |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2527220A (en) * | 1947-12-29 | 1950-10-24 | Gen Electric | Transformer relay |
DE2454287C2 (de) * | 1973-11-21 | 1984-06-14 | LABAVIA - S.G.E., 75008 Paris | Vorrichtung zur Steuerung von Wirbelstrombremsen mit mehreren Erregerwicklungen |
DE8311516U1 (de) * | 1982-04-22 | 1983-09-15 | West Country Marketing & Advertising Ltd., Clifton, Bristol | Vorrichtung zum aufhaengen blattfoermigen materials |
IT1252301B (it) * | 1991-11-15 | 1995-06-08 | Nuovo Pignone Spa | Sistema di controllo automatico per ratiera rotativa elettronica |
-
1996
- 1996-12-31 FR FR9616393A patent/FR2757884B1/fr not_active Expired - Fee Related
-
1997
- 1997-12-15 US US08/990,793 patent/US5908051A/en not_active Expired - Fee Related
- 1997-12-23 EP EP97420242A patent/EP0851047B1/fr not_active Expired - Lifetime
- 1997-12-23 DE DE69701619T patent/DE69701619T2/de not_active Expired - Lifetime
- 1997-12-23 ES ES97420242T patent/ES2144303T3/es not_active Expired - Lifetime
- 1997-12-24 JP JP35531897A patent/JP3545186B2/ja not_active Expired - Fee Related
- 1997-12-30 CN CN97126282A patent/CN1058305C/zh not_active Ceased
- 1997-12-30 KR KR1019970078657A patent/KR100418082B1/ko not_active IP Right Cessation
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0068139A1 (fr) * | 1981-06-26 | 1983-01-05 | Textilma AG | Dispositif d'accouplement, plus particulièrement pour un métier à tisser |
FR2515703A1 (fr) * | 1981-11-05 | 1983-05-06 | Staubli Sa Ets | |
EP0324423A2 (fr) * | 1988-01-14 | 1989-07-19 | EASTMAN KODAK COMPANY (a New Jersey corporation) | Dispositif de commande électromagnétique pour les caméras |
EP0606517A1 (fr) * | 1992-12-25 | 1994-07-20 | Kabushiki Kaisha Yamada Dobby | Ratière |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1936014A1 (fr) | 2006-12-21 | 2008-06-25 | STAUBLI Faverges | Bloc électro-aimant et dispositif de sélection électromagnétique du mouvement des lames de ratieres et autres mécaniques de formation de la foule |
FR2910494A1 (fr) * | 2006-12-21 | 2008-06-27 | Staubli Faverges Sca | Bloc electro-aimant et dispositif de selection electromagnetique du mouvement des lames de ratieres et autres mecaniques de formation de la foule |
EP2460918A1 (fr) | 2010-12-06 | 2012-06-06 | Staubli Faverges | Dispositif de sélection pour le contrôle d'une ratière, ensemble de sélection et ratière contrôlée par un tel dispositif de sélection |
FR2968317A1 (fr) * | 2010-12-06 | 2012-06-08 | Staubli Sa Ets | Dispositif de selection pour le controle d'une ratiere, ensemble de selection et ratiere controlee par un tel dispositif de selection |
Also Published As
Publication number | Publication date |
---|---|
FR2757884B1 (fr) | 1999-02-19 |
JPH10245737A (ja) | 1998-09-14 |
CN1058305C (zh) | 2000-11-08 |
KR100418082B1 (ko) | 2004-04-06 |
CN1188825A (zh) | 1998-07-29 |
JP3545186B2 (ja) | 2004-07-21 |
US5908051A (en) | 1999-06-01 |
DE69701619D1 (de) | 2000-05-11 |
ES2144303T3 (es) | 2000-06-01 |
DE69701619T2 (de) | 2000-08-03 |
EP0851047B1 (fr) | 2000-04-05 |
KR19980064816A (ko) | 1998-10-07 |
FR2757884A1 (fr) | 1998-07-03 |
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