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EP1475465A2 - Shedding mechanism and jacquard loom with such a mechanism - Google Patents

Shedding mechanism and jacquard loom with such a mechanism Download PDF

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Publication number
EP1475465A2
EP1475465A2 EP04356063A EP04356063A EP1475465A2 EP 1475465 A2 EP1475465 A2 EP 1475465A2 EP 04356063 A EP04356063 A EP 04356063A EP 04356063 A EP04356063 A EP 04356063A EP 1475465 A2 EP1475465 A2 EP 1475465A2
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EP
European Patent Office
Prior art keywords
plates
input shaft
knives
shafts
shaft
Prior art date
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Granted
Application number
EP04356063A
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German (de)
French (fr)
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EP1475465B1 (en
EP1475465A3 (en
Inventor
Dario Bassi
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Staeubli Lyon SA
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Staeubli Lyon SA
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Publication of EP1475465A3 publication Critical patent/EP1475465A3/en
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    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03C—SHEDDING MECHANISMS; PATTERN CARDS OR CHAINS; PUNCHING OF CARDS; DESIGNING PATTERNS
    • D03C3/00—Jacquards
    • D03C3/24—Features common to jacquards of different types
    • D03C3/32—Jacquard driving mechanisms
    • D03C3/36—Griffe operating mechanisms

Definitions

  • the invention relates to a device for training the crowd and a Jacquard type loom equipped with a such device.
  • FR-A-2 669 650 it is known from FR-A-2 669 650 to use an input tree animated with a movement of continuous rotation and on which four are mounted eccentrics each associated with a control rod of a tilting lever, the tilting levers being mounted, by group of two, on trees provided on each side of frames.
  • These kinematics are relatively complex and expensive, while its adjustment is delicate, especially made from the number of high joints resulting from the use of four eccentrics and four connecting rods ordered.
  • auxiliary frames or plates must be brought back to the frame of the loom to support, on the one hand, the input shaft and, on the other hand, the shafts on which the tilting levers are mounted.
  • the invention relates to a device for crowd training for a type loom Jacquard in which the alternative vertical actuation of two sets of knives is operated from a single input shaft with a continuous rotation movement and extending between two plates which support trees oscillating fitted with kinematically tilting levers linked to the knife series, this input shaft being equipped, in the vicinity of each plate, with means for driving the aforementioned tilting levers.
  • This device is characterized in that the oscillating shafts extend in parallel at least between the plates and are each connected to the input shaft by a single link to connecting rod and eccentric, such a connection being respectively arranged in the vicinity of each plate.
  • the device of the invention only requires two connecting rods and eccentric, provided respectively on each side of the knives, i.e. in the vicinity of the turntables, to train effectively these series of knives.
  • the oscillating shafts which extend over the entire length knives transmit the drive torque from tilting levers on both sides of the knives, which allows one-sided control of the two tilting levers associated with each series of knives on each tree oscillating.
  • the connecting rods respectively belonging to two links of the device can be either in phase, either in phase opposition.
  • the invention also relates to a loom for Jacquard type equipped with a device for training the crowd as previously described.
  • the loom M represented very symbolically at Figure 1 is equipped with a device for forming the crowd 10 which includes two sets of knives or blades.
  • a first series of knives 11 is supported by two crosspieces 12 which form a first frame, then that a second series of knives 11 'is supported by two other crosspieces 12 'which form a second frame.
  • the knives 11 and 11 ′ are intended to be moved with a movement of vertical oscillations represented by the double arrow F 1 , this making it possible to move hooks, not shown, between their top dead center positions and their respective bottom dead center positions, in order to control the movement of heddles 13 connected to a hook by arches 14 as is well known in the technical field of Jacquard looms.
  • the crosspieces or frames 12 and 12 'and the knives associated 11 and 11 ′ are arranged between two plates 20 and 21 intended to be secured to a frame B.
  • An input shaft 30 extends between the plates 20 and 21 and protrudes outside of them. He is destined to be kinematically linked, at the level of one of its ends with a drive shaft 40 represented only by its center line in Figure 1.
  • the shaft 30 is designed to be connected to the shaft 40 to the choice at its end 31 visible in Figure 1 or from its opposite end 32, which makes it possible to control the device 10 by one or the other side, depending on the exact type of loom M or of the device mounting direction 10 on frame B.
  • the shaft 30 is rotated continuous represented by arrow R.
  • the shaft 30 is supported by bearings 23 a and 23 b provided respectively on the plates 20 and 21, these bearings advantageously consist of simple greased bearings.
  • the device 10 also comprises two oscillating shafts, namely an upper oscillating shaft 50 and a lower oscillating shaft 60. These shafts are superimposed, the shaft 50 being disposed above the shaft 60, and extend parallel to it. one to the other above the knives and crosspieces 11, 12, 11 'and 12' and through the plates 20 and 21 at the level of which they are supported by bearings, 25 a and 25 b for the shaft 50, respectively 26 a and 26 b for the shaft 60. These bearings can be of the same type as the bearings 23 a and 23 b .
  • the shaft 50 is equipped with four tilting levers 51, 52, 53 and 54 connected to crosspieces 12 and 12 'by rods 55.
  • the shaft 60 is equipped with four tilting levers, three of which are visible in Figure 1 with references 62 to 64 and which are linked to sleepers 12 and 12 'by rods 65.
  • the tilting levers 51, 62, 53 and 64 are connected at the cross members 12 ', while the other tilting levers are connected to the crosspieces 12.
  • a connection 70 between the shafts 30 and 60 is provided at vicinity of the plate 20 outside the defined volume between plates 20 and 21.
  • This connection includes a eccentric 71 mounted on the shaft 30.
  • a connecting rod 72 is mounted around eccentric 71 and is articulated, around an axis 73, on a crank 74 forming an integral clevis from the end of the shaft 60 which protrudes from the plate 20.
  • This single link 70 makes it possible to transform the continuous rotation movement of the shaft 30 in one oscillating movement for shaft 60, without it being necessary to use cams or other devices mechanical requiring very precise machining and whose adjustment is sometimes tricky.
  • the movement transmitted by the link 70 to the shaft 60 is itself transmitted to the tilting levers carried by this shaft, near plate 20 but also at in the vicinity of the plate 21, so that it is not necessary to provide a kinematic connection between the shafts 30 and 60 in the vicinity of this plate 21.
  • a link 80 of the same type as the link 70 is provided, between shafts 30 and 50 and also includes an eccentric 81 around which is mounted a connecting rod 82 articulated around an axis 83, on a crank 84 secured to the shaft 50.
  • this link 80 makes it possible to transmit and transform the rotational movement continues from the shaft 30 to the tilting levers 51 to 54.
  • Each of these tilting levers is equipped with a slot 56 or 66 for adjusting the position of the rods 55 and 65 and, there, the crowd obtained on the loom M.
  • the trees 50 and 60 are identical or almost identical, which saves money when the manufacture of device 10, the tilting levers equipping these trees can also be identical.
  • connections 70 and 80 can be identical.
  • the plates 20 and 21 can be identical since they are both crossed by each of the trees 30, 50 and 60. This also makes it possible to carry out savings when producing 10 devices in series.
  • the connecting rods 72 and 82 of the links 70 and 80 are in phase.
  • these connecting rods may be out of phase with respect to shaft 30, which has the advantage of better balancing of the device 10 leading to a limitation vibrations when the loom is in operation.
  • the invention has been shown with knives 11 and 11 'associated with sleepers 12 and 12' in a structure relatively rigid. It of course applies to devices in which the knives are suspended from rods.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Looms (AREA)
  • Wire Processing (AREA)
  • Electrophonic Musical Instruments (AREA)
  • Woven Fabrics (AREA)

Abstract

The shed former for a Jacquard-type loom (M) has vertically reciprocating cutters (11, 11') operated by a single continuously-rotating unidirectional input shaft between two vertical plates (20, 21) that support oscillating shafts (50, 60) equipped with rocking levers (51-54, 62-64) linked kinematically to the cutters. The oscillating shafts, which are identical and positioned above the cutters, extend parallel to one another between the plates and are connected to the input shaft by a cam (71) and lever (72, 82) mechanism. The input shaft and oscillating shafts are supported by lubricated roller bearings mounted on the plates, and the input shaft is connected at each end to a drive motor.

Description

L'invention a trait à un dispositif de formation de la foule et à un métier à tisser de type Jacquard équipé d'un tel dispositif.The invention relates to a device for training the crowd and a Jacquard type loom equipped with a such device.

Elle concerne plus particulièrement l'actionnement vertical, en opposition de phase, des deux séries de lames ou couteaux qui, dans un métier de type Jacquard, assurent le déplacement vertical des crochets d'une mécanique d'armure. Dans un tel métier, des crochets disposés en rangées sont alternativement soulevés par des barres ou lames communément dénommées « couteaux » ou « griffes », ces couteaux ou griffes étant eux-même, le plus souvent, supportés par l'un de deux cadres de griffes. Chaque cadre doit être animé d'un mouvement d'oscillations verticales en opposition de phase avec l'autre cadre.It relates more particularly to actuation vertical, in phase opposition, of the two series of blades or knives which, in a Jacquard type loom, ensure the vertical displacement of the hooks of a mechanical armor. In such a trade, hooks arranged in rows are alternately lifted by bars or blades commonly called "knives" or "claws", these knives or claws being themselves, more often than not, supported by one of two claw frames. Each frame must be animated by a movement of vertical oscillations in phase opposition with the other frame.

Pour ce faire, il est connu de FR-A-2 669 650 d'utiliser un arbre d'entrée animé d'un mouvement de rotation continu et sur lequel sont montés quatre excentriques associés chacun à une bielle de commande d'un levier basculant, les leviers basculants étant montés, par groupe de deux, sur des arbres prévus de chaque côté des cadres. Cette cinématique est relativement complexe et coûteuse, alors que son réglage est délicat, notamment du fait du nombre d'articulations élevées résultant de l'utilisation de quatre excentriques et quatre bielles de commande. En outre, des bâtis ou platines auxiliaires doivent être rapportés sur le bâti du métier pour supporter, d'une part, l'arbre d'entrée et, d'autre part, les arbres sur lesquels sont montés les leviers basculants.To do this, it is known from FR-A-2 669 650 to use an input tree animated with a movement of continuous rotation and on which four are mounted eccentrics each associated with a control rod of a tilting lever, the tilting levers being mounted, by group of two, on trees provided on each side of frames. These kinematics are relatively complex and expensive, while its adjustment is delicate, especially made from the number of high joints resulting from the use of four eccentrics and four connecting rods ordered. In addition, auxiliary frames or plates must be brought back to the frame of the loom to support, on the one hand, the input shaft and, on the other hand, the shafts on which the tilting levers are mounted.

C'est à ces inconvénients qu'entend plus particulièrement remédier l'invention en proposant un nouveau dispositif de formation de la foule simplifié, dont la fiabilité est améliorée et qui est plus aisé à assembler et à régler que les dispositifs connus. It is to these disadvantages that most particularly remedy the invention by proposing a new simplified crowd training system, including reliability is improved and which is easier to assemble and to adjust only the known devices.

Dans cet esprit, l'invention concerne un dispositif de formation de la foule pour un métier à tisser de type Jacquard dans lequel l'actionnement vertical alternatif de deux séries de couteaux est opéré à partir d'un unique arbre d'entrée animé d'un mouvement de rotation continue et s'étendant entre deux platines qui supportent des arbres oscillants équipés de leviers basculants cinématiquement liés aux séries de couteaux, cet arbre d'entrée étant équipé, au voisinage de chaque platine, de moyens d'entraínement des leviers basculants précités. Ce dispositif est caractérisé en ce que les arbres oscillants s'étendent en parallèle au moins entre les platines et sont chacun reliés à l'arbre d'entrée par une unique liaison à bielle et excentrique, une telle liaison étant respectivement ménagée au voisinage de chaque platine.In this spirit, the invention relates to a device for crowd training for a type loom Jacquard in which the alternative vertical actuation of two sets of knives is operated from a single input shaft with a continuous rotation movement and extending between two plates which support trees oscillating fitted with kinematically tilting levers linked to the knife series, this input shaft being equipped, in the vicinity of each plate, with means for driving the aforementioned tilting levers. This device is characterized in that the oscillating shafts extend in parallel at least between the plates and are each connected to the input shaft by a single link to connecting rod and eccentric, such a connection being respectively arranged in the vicinity of each plate.

Grâce à l'utilisation d'arbres oscillants s'étendant entre les platines-supports, le dispositif de l'invention ne nécessite que deux liaisons à bielle et excentrique, prévues respectivement de chaque côté des couteaux, c'est-à-dire au voisinage des platines, pour entraíner efficacement ces séries de couteaux. En d'autres termes, les arbres oscillants qui s'étendent sur toute la longueur des couteaux transmettent le couple d'entraínement des leviers basculants sur les deux côtés des couteaux, ce qui permet une commande unilatérale des deux leviers basculants associés à chaque série de couteaux sur chaque arbre oscillant.Through the use of swinging shafts extending between the support plates, the device of the invention only requires two connecting rods and eccentric, provided respectively on each side of the knives, i.e. in the vicinity of the turntables, to train effectively these series of knives. In other words, the oscillating shafts which extend over the entire length knives transmit the drive torque from tilting levers on both sides of the knives, which allows one-sided control of the two tilting levers associated with each series of knives on each tree oscillating.

Un dispositif de formation de la foule peut, en outre, incorporer une ou plusieurs des caractéristiques suivantes :

  • Les arbres oscillants sont superposés au-dessus des séries de couteaux.
  • Les arbres oscillants sont sensiblement identiques.
  • L'arbre d'entrée et les arbres oscillants sont supportés par des paliers montés sur les platines. En particulier, il n'est pas nécessaire de prévoir des carters à bain d'huile tels qu'utilisés parfois dans les dispositifs incorporant des systèmes de cames. Par rapport aux systèmes à cames, la liaison par bielle et excentrique permet d'utiliser des gammes d'usinage moins précises, ce qui est avantageux en termes de prix de revient. De façon avantageuse, les paliers précités sont constitués par des roulements lubrifiés.
  • Les platines sont sensiblement identiques.
  • L'arbre d'entrée est apte à être relié à un arbre moteur d'entraínement au niveau de chacune de ses extrémités, ce qui permet de commander le dispositif par un côté ou par un autre, en fonction du type exact du métier sur lequel il doit être commandé.
A crowd training device may further incorporate one or more of the following features:
  • The oscillating shafts are superimposed above the knife series.
  • The oscillating shafts are substantially identical.
  • The input shaft and the oscillating shafts are supported by bearings mounted on the plates. In particular, it is not necessary to provide oil bath casings as sometimes used in devices incorporating cam systems. Compared to cam systems, the connecting rod and eccentric allows less precise machining ranges to be used, which is advantageous in terms of cost price. Advantageously, the aforementioned bearings are constituted by lubricated bearings.
  • The plates are substantially identical.
  • The input shaft is adapted to be connected to a drive motor shaft at each of its ends, which allows to control the device from one side or another, depending on the exact type of trade on which it must be ordered.

Selon des modes de réalisation possibles de l'invention, les bielles appartenant respectivement aux deux liaisons du dispositif peuvent être soit en phase, soit en opposition de phase.According to possible embodiments of the invention, the connecting rods respectively belonging to two links of the device can be either in phase, either in phase opposition.

L'invention concerne également un métier à tisser de type Jacquard équipé d'un dispositif de formation de la foule tel que précédemment décrit.The invention also relates to a loom for Jacquard type equipped with a device for training the crowd as previously described.

L'invention sera mieux comprise et d'autres avantages de celle-ci apparaítront plus clairement à la lumière de la description qui va suivre de deux modes de réalisation d'un dispositif et d'un métier à tisser conformes à son principe, donnée uniquement à titre d'exemple et faite en référence aux dessins annexés dans lesquels:

  • La figure 1 est une vue en perspective d'un dispositif de formation de la foule conforme à l'invention monté sur un métier à tisser conforme à l'invention;
  • La figure 2 est une représentation schématique, en vue de côté et avec arrachements partiels au niveau des paliers, du dispositif de la figure 1;
  • La figure 3 est une vue dans le sens de la flèche III à la figure 2 et
  • La figure 4 est une vue analogue à la figure 3 pour un dispositif conforme à un second mode de réalisation de l'invention.
The invention will be better understood and other advantages thereof will appear more clearly in the light of the following description of two embodiments of a device and a loom conforming to its principle, given only by way of example and with reference to the appended drawings in which:
  • Figure 1 is a perspective view of a shedding device according to the invention mounted on a weaving loom according to the invention;
  • Figure 2 is a schematic representation, in side view and with parts cut away at the bearings, of the device of Figure 1;
  • Figure 3 is a view in the direction of arrow III in Figure 2 and
  • Figure 4 is a view similar to Figure 3 for a device according to a second embodiment of the invention.

Le métier à tisser M représenté très symboliquement à la figure 1 est équipé d'un dispositif de formation de la foule 10 qui comprend deux séries de couteaux ou lames.The loom M represented very symbolically at Figure 1 is equipped with a device for forming the crowd 10 which includes two sets of knives or blades.

Une première série de couteaux 11 est supportée par deux traverses 12 qui forment un premier cadre, alors qu'une seconde série de couteaux 11' est supportée par deux autres traverses 12' qui forment un second cadre.A first series of knives 11 is supported by two crosspieces 12 which form a first frame, then that a second series of knives 11 'is supported by two other crosspieces 12 'which form a second frame.

Les couteaux 11 et 11' sont destinés à être déplacés avec un mouvement d'oscillations verticales représenté par la double flèche F1, ceci permettant de déplacer des crochets non représentés entre leurs positions de point mort haut et leurs positions de point mort bas respectives, afin de commander le déplacement de lisses 13 reliées à un crochet par des arcades 14 comme cela est bien connu dans le domaine technique des métiers Jacquard.The knives 11 and 11 ′ are intended to be moved with a movement of vertical oscillations represented by the double arrow F 1 , this making it possible to move hooks, not shown, between their top dead center positions and their respective bottom dead center positions, in order to control the movement of heddles 13 connected to a hook by arches 14 as is well known in the technical field of Jacquard looms.

Les traverses ou cadres 12 et 12' et les couteaux associés 11 et 11' sont disposés entre deux platines 20 et 21 destinées à être solidarisées à un bâti B.The crosspieces or frames 12 and 12 'and the knives associated 11 and 11 ′ are arranged between two plates 20 and 21 intended to be secured to a frame B.

Un arbre d'entrée 30 s'étend entre les platines 20 et 21 et dépasse à l'extérieur de celles-ci. Il est destiné à être cinématiquement lié, au niveau de l'une de ses extrémités avec un arbre moteur d'entraínement 40 représenté uniquement par son trait d'axe à la figure 1. L'arbre 30 est prévu pour être raccordé à l'arbre 40 au choix au niveau de son extrémité 31 visible à la figure 1 ou de son extrémité opposée 32, ce qui permet de commander le dispositif 10 par l'un ou l'autre côté, en fonction du type exact du métier M ou du sens de montage du dispositif 10 sur le bâti B.An input shaft 30 extends between the plates 20 and 21 and protrudes outside of them. He is destined to be kinematically linked, at the level of one of its ends with a drive shaft 40 represented only by its center line in Figure 1. The shaft 30 is designed to be connected to the shaft 40 to the choice at its end 31 visible in Figure 1 or from its opposite end 32, which makes it possible to control the device 10 by one or the other side, depending on the exact type of loom M or of the device mounting direction 10 on frame B.

L'arbre 30 est animé d'un mouvement de rotation continue représenté par la flèche R.The shaft 30 is rotated continuous represented by arrow R.

L'arbre 30 est supporté par des paliers 23a et 23b prévus respectivement sur les platines 20 et 21, ces paliers sont avantageusement constitués de simples roulements graissés.The shaft 30 is supported by bearings 23 a and 23 b provided respectively on the plates 20 and 21, these bearings advantageously consist of simple greased bearings.

Le dispositif 10 comprend également deux arbres oscillants, à savoir un arbre oscillant supérieur 50 et un arbre oscillant inférieur 60. Ces arbres sont superposés, l'arbre 50 étant disposé au-dessus de l'arbre 60, et s'étendent parallèlement l'un à l'autre au-dessus des couteaux et traverses 11, 12, 11' et 12' et à travers les platines 20 et 21 au niveau desquelles ils sont supportés par des paliers, 25a et 25b pour l'arbre 50, respectivement 26a et 26b pour l'arbre 60. Ces paliers peuvent être du même type que les paliers 23a et 23b.The device 10 also comprises two oscillating shafts, namely an upper oscillating shaft 50 and a lower oscillating shaft 60. These shafts are superimposed, the shaft 50 being disposed above the shaft 60, and extend parallel to it. one to the other above the knives and crosspieces 11, 12, 11 'and 12' and through the plates 20 and 21 at the level of which they are supported by bearings, 25 a and 25 b for the shaft 50, respectively 26 a and 26 b for the shaft 60. These bearings can be of the same type as the bearings 23 a and 23 b .

L'arbre 50 est équipé de quatre leviers basculants 51, 52, 53 et 54 reliés aux traverses 12 et 12' par des tiges 55. De la même manière, l'arbre 60 est équipé de quatre leviers basculants, dont trois sont visibles à la figure 1 avec les références 62 à 64 et qui sont reliés aux traverses 12 et 12' par des tiges 65.The shaft 50 is equipped with four tilting levers 51, 52, 53 and 54 connected to crosspieces 12 and 12 'by rods 55. Similarly, the shaft 60 is equipped with four tilting levers, three of which are visible in Figure 1 with references 62 to 64 and which are linked to sleepers 12 and 12 'by rods 65.

Les leviers basculants 51, 62, 53 et 64 sont reliés aux traverses 12', alors que les autres leviers basculants sont reliés aux traverses 12.The tilting levers 51, 62, 53 and 64 are connected at the cross members 12 ', while the other tilting levers are connected to the crosspieces 12.

Une liaison 70 entre les arbres 30 et 60 est prévue au voisinage de la platine 20 à l'extérieur du volume défini entre les platines 20 et 21. Cette liaison comprend un excentrique 71 monté sur l'arbre 30. Une bielle 72 est montée autour de l'excentrique 71 et est articulée, autour d'un axe 73, sur une manivelle 74 formant chappe solidaire de l'extrémité de l'arbre 60 qui dépasse de la platine 20.A connection 70 between the shafts 30 and 60 is provided at vicinity of the plate 20 outside the defined volume between plates 20 and 21. This connection includes a eccentric 71 mounted on the shaft 30. A connecting rod 72 is mounted around eccentric 71 and is articulated, around an axis 73, on a crank 74 forming an integral clevis from the end of the shaft 60 which protrudes from the plate 20.

Cette unique liaison 70 permet de transformer le mouvement de rotation continue de l'arbre 30 en un mouvement oscillant pour l'arbre 60, sans qu'il soit nécessaire d'utiliser des cames ou d'autres dispositifs mécaniques nécessitant des usinages très précis et dont le réglage s'avère parfois délicat.This single link 70 makes it possible to transform the continuous rotation movement of the shaft 30 in one oscillating movement for shaft 60, without it being necessary to use cams or other devices mechanical requiring very precise machining and whose adjustment is sometimes tricky.

Le mouvement transmis par la liaison 70 à l'arbre 60 est lui-même transmis aux leviers basculants portés par cet arbre, au voisinage de la platine 20 mais également au voisinage de la platine 21, de sorte qu'il n'est pas nécessaire de prévoir une liaison cinématique entre les arbres 30 et 60 au voisinage de cette platine 21.The movement transmitted by the link 70 to the shaft 60 is itself transmitted to the tilting levers carried by this shaft, near plate 20 but also at in the vicinity of the plate 21, so that it is not necessary to provide a kinematic connection between the shafts 30 and 60 in the vicinity of this plate 21.

Par ailleurs, une liaison 80 du même type que la liaison 70 est prévue, entre les arbres 30 et 50 et comprend également un excentrique 81 autour duquel est montée une bielle 82 articulée, autour d'un axe 83, sur une manivelle 84 solidaire de l'arbre 50.Furthermore, a link 80 of the same type as the link 70 is provided, between shafts 30 and 50 and also includes an eccentric 81 around which is mounted a connecting rod 82 articulated around an axis 83, on a crank 84 secured to the shaft 50.

Comme précédemment, cette liaison 80 permet de transmettre et de transformer le mouvement de rotation continue de l'arbre 30 jusqu'aux leviers basculants 51 à 54.As before, this link 80 makes it possible to transmit and transform the rotational movement continues from the shaft 30 to the tilting levers 51 to 54.

Chacun de ces leviers basculants est équipé d'une fente 56 ou 66 permettant de régler la position des tiges 55 et 65 et, par là, la foule obtenue sur le métier M.Each of these tilting levers is equipped with a slot 56 or 66 for adjusting the position of the rods 55 and 65 and, there, the crowd obtained on the loom M.

Les arbres 50 et 60 sont identiques ou quasi identiques, ce qui permet de réaliser des économies lors de la fabrication du dispositif 10, les leviers basculants équipant ces arbres pouvant également être identiques.The trees 50 and 60 are identical or almost identical, which saves money when the manufacture of device 10, the tilting levers equipping these trees can also be identical.

De même, à l'exception des bielles 72 et 82, les éléments constitutifs des liaisons 70 et 80 peuvent être identiques. Similarly, with the exception of connecting rods 72 and 82, the constituent elements of connections 70 and 80 can be identical.

Les platines 20 et 21 peuvent être identiques puisqu'elles sont toutes deux traversées par chacun des arbres 30, 50 et 60. Ceci permet également de réaliser des économies lors de la production de dispositifs 10 en série.The plates 20 and 21 can be identical since they are both crossed by each of the trees 30, 50 and 60. This also makes it possible to carry out savings when producing 10 devices in series.

Comme il ressort plus particulièrement de la figure 3, les bielles 72 et 82 des liaisons 70 et 80 sont en phase.As can be seen more particularly from FIG. 3, the connecting rods 72 and 82 of the links 70 and 80 are in phase.

Cependant et comme représenté à la figure 4, ces bielles peuvent être en opposition de phase par rapport à l'arbre 30, ce qui présente l'avantage d'un meilleur équilibrage du dispositif 10 conduisant à une limitation des vibrations lorsque le métier est en fonctionnement.However and as shown in Figure 4, these connecting rods may be out of phase with respect to shaft 30, which has the advantage of better balancing of the device 10 leading to a limitation vibrations when the loom is in operation.

L'invention a été représentée avec des couteaux 11 et 11' associés à des traverses 12 et 12' dans une structure relativement rigide. Elle s'applique bien entendu à des dispositifs dans lesquels les couteaux sont suspendus à des biellettes.The invention has been shown with knives 11 and 11 'associated with sleepers 12 and 12' in a structure relatively rigid. It of course applies to devices in which the knives are suspended from rods.

Claims (10)

Dispositif de formation de la foule pour métier à tisser (M) de type Jacquard dans lequel l'actionnement vertical alternatif de deux séries de couteaux (11, 11') est opéré à partir d'un unique arbre d'entrée (30) animé d'un mouvement de rotation continue (R) et s'étendant entre deux platines (20, 21) qui supportent des arbres oscillants (50, 60) équipés de leviers basculants (51-54, 62-64) cinématiquement liés auxdites séries de couteaux, ledit arbre d'entrée étant équipé, au voisinage de chaque platine, de moyens (70, 80) d'entraínement desdits leviers basculants, caractérisé en ce que lesdits arbres oscillants (50, 60) s'étendent en parallèle au moins entre lesdites platines et sont chacun reliés audit arbre d'entrée par une unique liaison (70, 80) à bielle (72, 82) et excentrique (71, 81), une liaison étant respectivement ménagée au voisinage de chaque platine (20, 21).Crowd formation device for weaving loom (M) of Jacquard type in which the alternating vertical actuation of two series of knives (11, 11 ') is operated from a single animated input shaft (30) of a continuous rotational movement (R) and extending between two plates (20, 21) which support oscillating shafts (50, 60) equipped with tilting levers (51-54, 62-64) kinematically linked to said series of knives, said input shaft being equipped, in the vicinity of each plate, with means (70, 80) for driving said tilting levers, characterized in that said oscillating shafts (50, 60) extend in parallel at least between said plates and are each connected to said input shaft by a single link (70, 80) with connecting rod (72, 82) and eccentric (71, 81), a link being respectively provided in the vicinity of each plate (20, 21) . Dispositif selon la revendication 1, caractérisé en ce que lesdits arbres oscillants (50, 60) sont superposés au-dessus desdites séries de couteaux (11, 11') .Device according to claim 1, characterized in that said oscillating shafts (50, 60) are superimposed above said series of knives (11, 11 '). Dispositif selon l'une des revendications précédentes, caractérisé en ce que lesdits arbres oscillants (50, 60) sont sensiblement identiques.Device according to one of the preceding claims, characterized in that said oscillating shafts (50, 60) are substantially identical. Dispositif selon l'une des revendications précédentes, caractérisé en ce que lesdits arbres d'entrée (30) et oscillants (50, 60) sont supportés par des paliers (23a, 23b, 25a, 25b, 26a, 26b) montés sur lesdites platines (20, 21).Device according to one of the preceding claims, characterized in that said input (30) and oscillating (50, 60) shafts are supported by bearings (23 a , 23 b , 25 a , 25 b , 26 a , 26 b ) mounted on said plates (20, 21). Dispositif selon la revendication 4, caractérisé en ce que lesdits paliers sont constitués par des roulements lubrifiés (23a, 23b, 25a, 25b, 26a, 26b) . Device according to Claim 4, characterized in that the said bearings consist of lubricated bearings (23 a , 23 b , 25 a , 25 b , 26 a , 26 b ). Dispositif selon l'une des revendications précédentes, caractérisé en ce que lesdites platines (20, 21) sont sensiblement identiques.Device according to one of the preceding claims, characterized in that said plates (20, 21) are substantially identical. Dispositif selon l'une des revendications précédentes, caractérisé en ce que ledit arbre d'entrée (30) est apte à être relié à un arbre moteur d'entraínement (40) au niveau de chacune de ses extrémités (31, 32).Device according to one of the preceding claims, characterized in that said input shaft (30) is able to be connected to a drive motor shaft (40) at each of its ends (31, 32). Dispositif selon l'une des revendications précédentes, caractérisé en ce que les bielles (72, 82) appartenant respectivement auxdites liaisons (70, 80) sont en phase.Device according to one of the preceding claims, characterized in that the connecting rods (72, 82) belonging respectively to said connections (70, 80) are in phase. Dispositif selon l'une des revendications 1 à 7, caractérisé en ce que les bielles (72, 82) appartenant respectivement auxdites liaisons (70, 80) sont en opposition de phase.Device according to one of claims 1 to 7, characterized in that the connecting rods (72, 82) belonging respectively to said connections (70, 80) are in phase opposition. Métier à tisser de type Jacquard équipé d'un dispositif de formation de la foule (10) selon l'une des revendications précédentes.Jacquard type loom equipped with a crowd formation device (10) according to one of previous claims.
EP04356063A 2003-05-06 2004-05-05 Shedding mechanism and jacquard loom with such a mechanism Expired - Lifetime EP1475465B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR0305505A FR2854642B1 (en) 2003-05-06 2003-05-06 CROWN FORMING DEVICE AND JACQUARD TYPE WEAVING EQUIPPED WITH SUCH A DEVICE
FR0305505 2003-05-06

Publications (3)

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EP1475465A2 true EP1475465A2 (en) 2004-11-10
EP1475465A3 EP1475465A3 (en) 2005-09-07
EP1475465B1 EP1475465B1 (en) 2006-11-15

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EP04356063A Expired - Lifetime EP1475465B1 (en) 2003-05-06 2004-05-05 Shedding mechanism and jacquard loom with such a mechanism

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US (1) US7017619B2 (en)
EP (1) EP1475465B1 (en)
KR (1) KR20040095170A (en)
CN (1) CN100547136C (en)
AT (1) ATE345409T1 (en)
DE (1) DE602004003165T2 (en)
FR (1) FR2854642B1 (en)
RU (1) RU2315829C2 (en)

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EP2253749A1 (en) * 2009-05-19 2010-11-24 Staubli Lyon Device for forming a shed and Jacquard loom equipped with such a device
CN102031614A (en) * 2010-12-30 2011-04-27 常熟市常纺纺织机械有限公司 Shedding mechanism for jacquard machine
CN103266385A (en) * 2013-04-19 2013-08-28 汪建兴 Jacquard loom power transmission apparatus
CN109518350A (en) * 2019-01-09 2019-03-26 宁波博日机械有限公司 A kind of single system flat knitting machine soleplate

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CN1912212B (en) * 2006-08-22 2010-11-24 王伯奇 Electronic jacquard of electromagnetic valve-jacquard needle linked
CN101831743B (en) * 2010-05-05 2011-08-31 汪建兴 Transmission mechanism for griffe of jacquard
CN102011235A (en) * 2010-12-21 2011-04-13 常熟纺织机械厂有限公司 Shedding device for jacquard
CN102618989B (en) * 2012-03-28 2013-12-25 嵊州市盛通电子科技有限公司 Lifting knife transmission mechanism of jacquard
CN102839481B (en) * 2012-09-11 2013-10-16 绍兴佳宝纺织机械科技有限公司 High-speed jacquard shedding device and jacquard machine provided with same
CN104499143B (en) * 2015-01-15 2016-03-30 尹黎明 The griffing of assembly is griffed in a kind of jacquard
CN104480607B (en) * 2015-01-19 2016-03-09 尹黎明 The mounting structure of knitting needle in a kind of jacquard
CN104878497B (en) * 2015-06-25 2016-05-18 烟台宋和科技股份有限公司 A kind of jacquard machine component device
CN105350136A (en) * 2015-12-04 2016-02-24 浙江奇汇电子提花机有限公司 Low-speed electronic jacquard device
BE1024029B1 (en) * 2016-04-08 2017-11-06 Nv Michel Van De Wiele GAAP FORMAT FOR A WEAVING DEVICE
CN106149175A (en) * 2016-09-24 2016-11-23 青岛升世真机械有限公司 The driving means of weaving machine with water spraying
FR3094726B1 (en) * 2019-04-03 2021-04-23 Staubli Lyon Jacquard-type shed forming device and loom incorporating such a device

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Cited By (9)

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Publication number Priority date Publication date Assignee Title
EP2253749A1 (en) * 2009-05-19 2010-11-24 Staubli Lyon Device for forming a shed and Jacquard loom equipped with such a device
FR2945825A1 (en) * 2009-05-19 2010-11-26 Staubli Lyon CROWN FORMATION DEVICE AND JACQUARD - TYPE WEAVING MACHINE EQUIPPED WITH SUCH A DEVICE.
KR20100124668A (en) * 2009-05-19 2010-11-29 스또불리 리옹 A shed-former device and a jacquard type loom fitted with such a device
KR101662180B1 (en) 2009-05-19 2016-10-04 스또불리 리옹 A shed-former device and a jacquard type loom fitted with such a device
CN102031614A (en) * 2010-12-30 2011-04-27 常熟市常纺纺织机械有限公司 Shedding mechanism for jacquard machine
CN103266385A (en) * 2013-04-19 2013-08-28 汪建兴 Jacquard loom power transmission apparatus
CN103266385B (en) * 2013-04-19 2015-08-05 嵊州市盛通电子科技有限公司 The actuating unit of jacquard weaving machine
CN109518350A (en) * 2019-01-09 2019-03-26 宁波博日机械有限公司 A kind of single system flat knitting machine soleplate
CN109518350B (en) * 2019-01-09 2023-09-22 宁波博日机械有限公司 Single system flat knitting machine bottom plate

Also Published As

Publication number Publication date
FR2854642A1 (en) 2004-11-12
EP1475465B1 (en) 2006-11-15
RU2315829C2 (en) 2008-01-27
US20040221911A1 (en) 2004-11-11
CN100547136C (en) 2009-10-07
DE602004003165D1 (en) 2006-12-28
EP1475465A3 (en) 2005-09-07
CN1550592A (en) 2004-12-01
ATE345409T1 (en) 2006-12-15
RU2004113649A (en) 2005-11-10
DE602004003165T2 (en) 2007-09-06
US7017619B2 (en) 2006-03-28
FR2854642B1 (en) 2005-07-08
KR20040095170A (en) 2004-11-12

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