EP0590120A1 - Procede et dispositif permettant de changer plus aisement une chaine. - Google Patents

Procede et dispositif permettant de changer plus aisement une chaine.

Info

Publication number
EP0590120A1
EP0590120A1 EP93907744A EP93907744A EP0590120A1 EP 0590120 A1 EP0590120 A1 EP 0590120A1 EP 93907744 A EP93907744 A EP 93907744A EP 93907744 A EP93907744 A EP 93907744A EP 0590120 A1 EP0590120 A1 EP 0590120A1
Authority
EP
European Patent Office
Prior art keywords
warp
clamping
chain
roller
frame
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
Application number
EP93907744A
Other languages
German (de)
English (en)
Other versions
EP0590120B1 (fr
Inventor
Martin Plaschy
Reinhard Furrer
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.)
Staeubli AG
Original Assignee
Zellweger Uster AG
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Zellweger Uster AG filed Critical Zellweger Uster AG
Publication of EP0590120A1 publication Critical patent/EP0590120A1/fr
Application granted granted Critical
Publication of EP0590120B1 publication Critical patent/EP0590120B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03J—AUXILIARY WEAVING APPARATUS; WEAVERS' TOOLS; SHUTTLES
    • D03J1/00—Auxiliary apparatus combined with or associated with looms
    • D03J1/16—Apparatus for joining warp ends
    • D03J1/18—Apparatus for joining warp ends for joining, e.g. tying, a complete series of fresh warp threads to the used warp threads
    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03J—AUXILIARY WEAVING APPARATUS; WEAVERS' TOOLS; SHUTTLES
    • D03J1/00—Auxiliary apparatus combined with or associated with looms
    • D03J1/001—Cloth or warp beam replacement

Definitions

  • the invention is in the field of warp changing on weaving machines by attaching a new one to the old, woven chain, the old chain being used to remove warp thread crossings and to release sized warp threads on their last piece over a length of about 1. 5 to 2 m is pulled through the dishes and wound up.
  • the old chain is prepared in such a way that the quality of the tying operation is positively influenced and in particular can be knotted straight.
  • this previously drawn piece is then pulled back and woven as normal after the machine has started.
  • a size which is very important in the weaving mill and which essentially determines the economy is the efficiency of a machine, machine group or an entire weaving mill. Efforts to increase the efficiency have always been made on the part of the machine manufacturers, but so far these have been limited practically exclusively to avoidance, reliable detection and rapid rectification of machine downtimes. Only very recently has it been recognized that the change of article and chain is a relatively large rationalization problem have potential that can be used to increase the efficiency. There are two main thrusts, on the one hand extensive automation and on the other hand such a simplification that these operations can be carried out by a single person.
  • the present invention lies in the latter field and relates to a method and a device for simplified warp change on weaving machines, on which the end section of a warp is pulled forward by a certain length, in which the warp threads of the woven chain are fixed and cut off by a rail-like member and the Warp threads of the new chain are clamped on a knotting frame having clamping elements, the latter being transported to the weaving machine, on which the warp thread layer of the woven chain is inserted into the clamping elements.
  • the invention is intended to provide a method for enabling a one-man chain change and an apparatus for carrying out this method.
  • the method according to the invention is characterized in that the warp thread layer of the woven chain is fixed on a roller assigned to the clamping members and is withdrawn from the weaving machine by rotating said roller by the specified length.
  • the device according to the invention for carrying out this method with a clamping element for two thread layers having a knotting frame is characterized by a rotatable roller and fixing means for the warp threads, arranged parallel to the clamping elements, and by a carrier unit for this and the knotting frame, which is preferably provided for mounting on a warp beam transport device.
  • FIG. 2 shows a section along the line II-II from FIG. 1.
  • the warp beam transport device BW seen from the side, that is to say transversely to the warp beam 1, which essentially consists of a front and a rear cuboid block 2 and 3, a base 4 connecting them, and holding arms (not shown) for the warp beam 1 exists.
  • the two blocks 2 and 3 contain, among other things, a drive for the warp beam transport device and for reloading the warp beam 1 into the weaving machine, various controls, an operating console and a bore for receiving a support column 5. There is one on the support columns 5 Support platform 6 for a knotting frame 7 and a ickel unit 8 attached.
  • Trolleys 9, which are displaceable in their longitudinal direction, are mounted on the support columns 5 and are adjusted by hydraulic tappets 10 arranged in the blocks 2 and 3.
  • Each trolley 9 carries on its inside rollers 11 between which a track 12 is guided; the supporting platform 6 is fastened to the two running rails 12.
  • Over the running track 12 the support platform 6 can be moved transversely to the warp beam transport device BW between a transport and a working position and fixed in these positions.
  • the warp beam 1 In the working position on the weaving machine, the warp beam 1 is extended laterally on the side of the warp beam transport device BW facing the weaving machine and inserted into the bearings of the weaving machine.
  • the support platform 6 with the assembled knotting frame 7 and the winding unit 8 is moved to the operator before inserting the warp beam.
  • the total width or depth of the system in the working position is around 2.5 m, which is absolutely intolerable for transport because of the limited space available in the weaving room.
  • the warp beam 1 and the supporting platform 6 are inserted into the warp beam transport device BW in a drawer-like manner, the width of which is then determined by the diameter of the warp beam 1 and is 1.2 m in the selected example.
  • the support platform 6 consists of two plate-shaped side walls 13 and a support 14 connected to them, which is preferably formed by two profile rails.
  • the 'compound is zwi ⁇ rule of the support 14 and at least one of the two side walls 13 articulated. This can compensate for any tension.
  • the right side wall 13 in FIG. 1 is provided with an opening through which the clamping rails of the knotting frame 7 can be pushed.
  • the knotting frame 7 is formed by the upper part of a knotting frame for the USTER TOPMATIC knotting machine, and consists of essentially from two pairs of clamping members K1 and K2, between which the two layers of thread to be connected are stretched, from a so-called brush tree 15 to achieve a uniform warp thread tension, and from suitable carriers 16 for the clamping members and the brush tree 15.
  • the clamping members Kl on the inlet side are formed by two clamps each consisting of a clamping rail 17 made of steel and a clamping strip 18 made of aluminum.
  • the Kle mschienen 17 are known from the USTER TOP- ' MATIC forth.
  • the lower clamping bar 18 is provided with an additional part made of aluminum, so that the desired distance from the upper clamping bar 18 for the clamping operation can be set by lateral displacement. After the clamping operation, the distance shown is produced by a lateral displacement of the said additional part.
  • the clamping members K2 on the outlet side are formed by two clamping elements, each with a clamping rail 19 and a clamping comb 20.
  • the warp thread layer Kn of the new warp beam 1 is clamped between the lower clamping rail 17 and the associated clamping strip 18 on the one hand and the lower clamping rail 19 and the associated clamping comb 20 on the other hand. Then the warp beam transport device BW (FIG. 1) is driven into the weaving mill and brought into the working position, in which the warp beam 1 and of course the weaving machine are located on the right side of the knotting frame 7, based on FIG. 2.
  • the old weaving warp Ka which is now to be clamped on the knotting frame 7, was also prepared by the following operations:
  • the warp was pulled through the dishes over a length of about 1.5 to 2 m in the area of its end. In this preferred area, the effect of the weaving harness made it possible to achieve an absolutely exact separation and alignment of the individual warp threads.
  • the old warp beam is prepared for removal by inserting a clip into the warp threads at a certain distance from the match beam and then cutting off the chain. This distance is in no way smaller than the distance between the winding unit 8 and the inlet-side clamping member Kl. Then the warp thread layer is wound around the clip and the roll formed thereby is deposited on the match tree.
  • the empty warp beam is removed and the BW warp beam transport device with the new warp beam can be moved to the weaving machine and the new warp beam can be inserted into the weaving machine.
  • the upper terminal strip 18 is placed on the lower terminal strip 18, on which it is fixed by built-in magnets.
  • the winding unit 8 which serves to pull back the pulled-forward part of the old chain, essentially consists of a frame 21 screwed to the profiled rails 14, of two side parts 22 pivotably mounted in this frame, and of a side part 22 mounted therein and via a crank 23 ( Fig.l) rotatable take-up roller 24, which carries on its circumference a thread clamp formed by a clamping strip 25, and from a brake, not shown, for the take-up roller 24.
  • This brake is by a winding roller 24 and a screw tightenable steel band formed.
  • the operator who, in relation to FIG. 2, stands on the left-hand side of the carrying platform 6, directly in front of the winding unit 8, grips the roll placed on the match tree and lifts them over the knotting frame 7 while simultaneously being unwound, as a result of which the warp thread layer Ka is placed over the winding roller 24. Then the clamping bar 25 is inserted and thereby the chain is clamped on the winding roller 24. Finally, the chain is cut off in front of the clip and then wound up on the winding roller 24 by turning the crank 23 and thereby withdrawn from the weaving machine. It may be advantageous to insert a comb into the chain before pulling back in the running direction of the warp threads when weaving in front of the warp thread monitor slats.
  • the winding roller 24, together with the side parts 22 carrying it, is pivoted downward in a counterclockwise direction, to the level of the frame 21 or below it. Then, by turning the brush tree 15 counterclockwise, the thread tension is evened out over the entire warp width and the upper clamping comb 20 is inserted and the warp threads are clamped to the upper clamping rail 19. Now the warp threads Ka between the brush tree 15 and the clamping comb mentioned are cut off and then removed from the take-up roller. The latter can be facilitated by previously inserting a clip between the brush tree 15 and the winding roller 24.
  • the method according to the invention leads to a reduction in the time required for the warp change. Since this reduction is achieved with an extremely low level of mechanical expenditure, the process is also economical and leads to a noticeable increase in the efficiency.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Auxiliary Weaving Apparatuses, Weavers' Tools, And Shuttles (AREA)

Abstract

Les fils de la nouvelle chaîne sont tendus, à l'aide d'organes de serrage (K1) sur un cadre de noueur (7). Les fils de la chaîne terminée, dont la partie terminale a été préétirée d'une longueur donnée, sont levés par l'intermédiaire du cadre de noueur (7) et placés sur un cylindre (24) adjoint aux organes de serrage (K1). les derniers fils de chaîne sont ensuite fixés sur le cyclindre (24) et retirés du métier à tisser, sur la longueur voulue, par rotation dudit cylindre. Une seule personne suffit pour procéder à ces opérations, si bien que le changement de chaîne est sensiblement simplifié. Le cadre de noueur (7) et le cylindre (24) sont montés sur un support commun (6) qui est destiné à être monté sur un dispositif de transport de l'ensouple (BW) à des fins de montage.
EP93907744A 1992-04-18 1993-04-16 Procede et dispositif permettant de changer plus aisement une chaine Expired - Lifetime EP0590120B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
CH01273/92A CH687541A5 (de) 1992-04-18 1992-04-18 Verfahren und Vorrichtung zum vereinfachten Kettwechsel.
CH1273/92 1992-04-18
PCT/CH1993/000100 WO1993021366A1 (fr) 1992-04-18 1993-04-16 Procede et dispositif permettant de changer plus aisement une chaine

Publications (2)

Publication Number Publication Date
EP0590120A1 true EP0590120A1 (fr) 1994-04-06
EP0590120B1 EP0590120B1 (fr) 1996-01-17

Family

ID=4206564

Family Applications (1)

Application Number Title Priority Date Filing Date
EP93907744A Expired - Lifetime EP0590120B1 (fr) 1992-04-18 1993-04-16 Procede et dispositif permettant de changer plus aisement une chaine

Country Status (7)

Country Link
US (1) US5430916A (fr)
EP (1) EP0590120B1 (fr)
JP (1) JPH06508666A (fr)
CH (1) CH687541A5 (fr)
DE (1) DE59301452D1 (fr)
ES (1) ES2083283T3 (fr)
WO (1) WO1993021366A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2662481A1 (fr) * 2012-05-10 2013-11-13 Stäubli Sargans AG Dispositif de serrage, machine à enverjure, machine de passage et procédé de tension de plusieurs fils de chaîne
EP3771758A1 (fr) 2019-07-31 2021-02-03 Stäubli Sargans AG Dispositif de serrage de fil et machine de préparation de tissage comprenant un tel dispositif de serrage de fil

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE1008059A3 (nl) * 1994-02-02 1996-01-03 Picanol Nv Werkwijze en inrichting voor het trekken op kettingdraden.
KR100336317B1 (ko) * 1999-12-09 2002-05-13 김종섭 전동식 빔 캐리어
BE1013733A3 (nl) * 2000-10-03 2002-07-02 T Sas Fran Ois Inrichting voor het automatisch wisselen van draadvormige materialen in een draadverwerkende machine.
CN104891382B (zh) * 2015-06-18 2017-03-01 青岛奥海纺机制造有限公司 一种用于辅助织布机盘头更换的装置及方法
CN116715170B (zh) * 2023-07-28 2025-06-20 随州市晖宏兴布业有限责任公司 一种用于辅助织布机盘头更换的装置及方法

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH401861A (de) * 1963-05-20 1965-10-31 Zellweger Uster Ag Gestell zum Aufspannen von Webketten für Einziehmaschinen
DE1535939A1 (de) * 1963-09-20 1969-10-02 Koefoed Hauberg Gestell mit Klemmgliedern zum Aufspannen von Webketten von deren Verknuepfen
CH420004A (de) * 1965-01-14 1966-08-31 Zellweger Uster Ag Gestell zum Aufspannen von Webketten für Webkettenanknüpfmaschinen und dergleichen
CH432419A (de) * 1965-12-10 1967-03-15 Zellweger Uster Ag Knüpfgestell für Webketten
US3696477A (en) * 1971-05-10 1972-10-10 Barber Colman Co Warp clamp
CH558849A (de) * 1973-06-28 1975-02-14 Zellweger Uster Ag Knuepfgestell mit transportwagen.
DE2451258A1 (de) * 1974-10-29 1976-05-06 Knotex Maschinenbau Gmbh Fadenklemme fuer webketten-knuepfmaschinen
EP0452327B1 (fr) * 1989-09-19 1994-02-16 Rhône-Poulenc Viscosuisse SA Procede et dispositif de liaison automatique de fils

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO9321366A1 *

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2662481A1 (fr) * 2012-05-10 2013-11-13 Stäubli Sargans AG Dispositif de serrage, machine à enverjure, machine de passage et procédé de tension de plusieurs fils de chaîne
EP3771758A1 (fr) 2019-07-31 2021-02-03 Stäubli Sargans AG Dispositif de serrage de fil et machine de préparation de tissage comprenant un tel dispositif de serrage de fil

Also Published As

Publication number Publication date
CH687541A5 (de) 1996-12-31
WO1993021366A1 (fr) 1993-10-28
DE59301452D1 (de) 1996-02-29
EP0590120B1 (fr) 1996-01-17
US5430916A (en) 1995-07-11
ES2083283T3 (es) 1996-04-01
JPH06508666A (ja) 1994-09-29

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