FR2530677A1

FR2530677A1 - Installation for sinker lever operation in shank machines

Info

Publication number: FR2530677A1
Application number: FR8312016A
Authority: FR
Inventors: Josef Blazek; Oldrich Kobrle; Miroslav Paar
Original assignee: Elitex Zavody Textilniho
Current assignee: Elitex Zavody Textilniho
Priority date: 1982-07-20
Filing date: 1983-07-20
Publication date: 1984-01-27
Also published as: CH660499A5; CS236253B1; IT8322120A0; IT8322120A1; FR2530677B1; IT1194326B; JPS5966534A; DE3323877A1

Abstract

Each sinker lever is equipped with a contact surface for the support, which is controlled by an electromagnet. The sinker lever is shifted from the shaft blade on to the support by an arm. Each support has a surface for placing into contact with an operating arm or a different operating component, to move the support against the electromagnet. The compact installation cuts programming time and cost and raises operating speed.

Description

"Dispositif pour commander les releveurs de platines des
machines à tisser Dobby"
L'invention concerne un dispositif pour commander les releveurs de platines des machines à tisser
Dobby qui @ubordonne suivant un programme les releveurs de platines aux lames."Device for controlling the plate lifters of
Dobby weaving machines "
The invention relates to a device for controlling the plate lifters of weaving machines.
Dobby who @ubordinates according to a program the plate lifters with blades.

Les machines Dobby connues commandent les releveurs de platines sur les lames d'une machine Dobby au moyen d'un dispositif mécanique à impulsions compliqué. Known Dobby machines control the plate lifters on the blades of a Dobby machine by means of a complicated mechanical impulse device.

L'invention a pour but de réaliser un di- positif simple pour machine Dobby qui permette de subor- donner lez releveurs de platines aux lames pour leur commande. Ce problème est résolu suivant l'invention, du fait que chaque releveur de platine -est pourvu d'une surface d'application qui sert à établir le contact avec le support, ce dernier étant associé à l'électro-aimant et étant command par lui suivant un programme. The object of the invention is to produce a simple device for a Dobby machine which makes it possible to subordinate the plate lifters to the blades for their control. This problem is solved according to the invention, because each platen lifter -is provided with an application surface which serves to establish contact with the support, the latter being associated with the electromagnet and being controlled by him following a program.

D'autres avantages et caractéristiques de l'invention ressortiront de la description d'un exemple de réalisation représenté dans les dessins
Dans ces dessins, les figures 1 et 2 montrent la disposition qui permet de commander une lame suivant la demande N P 23 00 032.Other advantages and characteristics of the invention will emerge from the description of an embodiment shown in the drawings
In these drawings, FIGS. 1 and 2 show the arrangement which makes it possible to control a blade according to request NP 23 00 032.

Le releveur de platine 1, 1' d'une machine
Dobby est affecté à la lame 2, 2', dans sa position de repos, au moyen d'un ressort 3, 3'. Le releveur de platine 1, 1' est connecté, contre la traction d'un ressort 3, 3' par la lame 2, 2', au moyen d'un guide 5, 5', pour s'appu@er sur un suppor@ fixe 4, @@@ Chaque releveur de platin@ 1, 1', est pourvu d'une zurface d'appui 6, 6', qui sert à assurer le contact avec le support 7, 7', qui est so@@is à l'électro-aimant 8, 8', cet électro-aimant 8, 8' commandant, suivant un programme, ce support.The platen lifter 1, 1 'of a machine
Dobby is assigned to the blade 2, 2 ', in its rest position, by means of a spring 3, 3'. The plate lifter 1, 1 'is connected, against the traction of a spring 3, 3' by the blade 2, 2 ', by means of a guide 5, 5', to rest on a support @ fixed 4, @@@ Each plate lifter @ 1, 1 ', is provided with a support surface 6, 6', which serves to ensure contact with the support 7, 7 ', which is so @@ is at the electromagnet 8, 8 ', this electromagnet 8, 8' controlling, according to a program, this support.

Le support 7, 7' peut tourner sur l'axe 9, 9', et @ourne ainsi, contre la traction du ressort 10, 10', de sa position de base sur une @urface d'application 13, 13' (figure 2), @u moyen de l'électre-aimant 8, 8' ou d'un
guide de commande 12, @@. Le support 7, 7' est ajusté,
dans sa position de base@ par la traction du ressort 10,
@0', @@ @@@@@ @ à @@ @@@@ @@ @@@ @@gure @) ou @@@ rup- port au guide @e commande 12, 12' (figure 2). La mise en place du support 7, 7' est @oujours assurée, lorsque le support 5, 5' pousse le releveur de platine 1, 1' contre le support fixe 4, 4' @t lorsqu'il s'est produit un jeu entre la surface 6, 6' du releveur de platine et le support 7, 7'.The support 7, 7 'can rotate on the axis 9, 9', and thus rotates, against the traction of the spring 10, 10 ', from its basic position on an application surface 13, 13' (figure 2), @ by means of the electromagnet 8, 8 'or a
control guide 12, @@. The support 7, 7 'is adjusted,
in its basic position @ by the traction of the spring 10,
@ 0 ', @@ @@@@@ @ @ @ @ @@@@ @@ @@@ @@ gure @) or @@@ rupport to guide @e command 12, 12' (figure 2). The installation of the support 7, 7 'is @ always ensured, when the support 5, 5' pushes the plate lifter 1, 1 'against the fixed support 4, 4' @t when a play has occurred between the surface 6, 6 'of the plate lifter and the support 7, 7'.

Si, suivant le programme, il doit se produire un so@lèvement de la @@me qui n'est pas représentée, l@ support 7, 7' (figure 1) est tourné et est maintenu au moyen d'un électro-aimant 8, 8'. Suivant la figure 2, le support 7, 7' est tourné au moyen d'un guide de manoeuvro 12, 12', ser @@@ surrac@ d'appui 13, 15', et est maintenu, au moyen de @@électro-aimant 8, 8', en dehors de la surface d'appui 6, 6' du releveur de platine 1, 1'. Après libération du releveur de platine 1, 1' au moyen d'un support 5, 5', ce releveur de platine 1, 1' est de nouveau connecté à la lame 2, 2', et l'élévation de la lame, qui n'est pas représentée, est provoquée au moyen d'un autre mécanisme par sa rotation dans une autre position terminale. If, according to the program, there has to be a lifting of the not shown, the support 7, 7 ′ (FIG. 1) is rotated and is held by means of an electromagnet 8, 8 '. According to Figure 2, the support 7, 7 'is rotated by means of a maneuvering guide 12, 12', ser @@@ surrac @ support 13, 15 ', and is maintained, by means of @@ electro -magnet 8, 8 ', outside the bearing surface 6, 6' of the plate lifter 1, 1 '. After release of the plate lifter 1, 1 'by means of a support 5, 5', this plate lifter 1, 1 'is again connected to the blade 2, 2', and the elevation of the blade, which is not shown, is caused by another mechanism by its rotation in another terminal position.

Si, suivant le programme, la lame doit descendre, le support 7, 7' reste appuyé par la traction du ressort 10, 10', dans sa position de base et se dresse sur la butée 11, 11' (figure 1), où il retourne, en commun avec le guide de manoeuvre 12, 12' dans sa position de base, et le releveur de platine s'applique, après sa libération sur le guide 5, 5', par sa surface d'appui 6, 6', sur le support 7, 7'. La lame 2, 2'.tourne sans le releveur de platine 1, 12 1' engagé, c'est-à-dire que l'élément de foule, qui n'est pas représenté, descend. If, according to the program, the blade must descend, the support 7, 7 'remains supported by the traction of the spring 10, 10', in its basic position and stands on the stop 11, 11 '(figure 1), where it returns, in common with the operating guide 12, 12 'to its basic position, and the plate lifter applies, after its release on the guide 5, 5', by its bearing surface 6, 6 ' , on the support 7, 7 '. The blade 2, 2 ′. Rotates without the plate lifter 1, 12 1 ′ engaged, that is to say that the crowd element, which is not shown, descends.

La commande électro-magnétique du support 7, 7' se déroule suivant un programme qui est mis en mémoire dans une mémoire électronique, qui n'est pas représentée, d'où elle est reprise séparément pendant le fonctionnement. The electro-magnetic control of the support 7, 7 'takes place according to a program which is stored in an electronic memory, which is not shown, from which it is taken up separately during operation.

Ce mode de réalisation d'une machine Dobby commandée électroniquement permet le synchronisme de llac- tivité de la machine, c'est-à-dire que, pendant le retour, les fils de trame qui viennent d'être tissés peuvent outre retirés sans difficulté de la foule qui continue à avancer. This embodiment of an electronically controlled Dobby machine allows the synchronization of the activity of the machine, that is to say that, during the return, the weft threads which have just been woven can furthermore be removed without difficulty. of the crowd that continues to advance.

Claims

R E V E N D I C A T I O N S

1.- Device for controlling the platen levers of a Dobby weaving machine, which subordinates according to a program, the platen levers or blades, characterized in that each platen lifter (1, 1 ') is provided with a bearing surface (6, 6 ') which serves to establish contact with the support (7, 7'), the supports (7, 7 ') being associated with the electromagnet (8, 8') and being ordered by him following a program.

2.- Device according to claim 1, characterized in that the plate lifter (1, 1 ') is controlled by the blade (2, 2') which brings it on the support (4, 4 ') against traction of the spring (3, 3 ') by means of a guide (5 5i) actuated by a cam which is not shown.

3.- Device according to one of claims 1 and 2, characterized in that each support (7, 7 ') is provided with a bearing surface (13, 13') which serves to establish contact with a guide control (12, 12 ') or another control member, which rotates the supports (7, 7') towards the electromagnet (8, 8 ').