EP0771896B1 - Dispositif non commandé de tension de la chaíne d'un métier à tisser - Google Patents

Dispositif non commandé de tension de la chaíne d'un métier à tisser Download PDF

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Publication number
EP0771896B1
EP0771896B1 EP96113973A EP96113973A EP0771896B1 EP 0771896 B1 EP0771896 B1 EP 0771896B1 EP 96113973 A EP96113973 A EP 96113973A EP 96113973 A EP96113973 A EP 96113973A EP 0771896 B1 EP0771896 B1 EP 0771896B1
Authority
EP
European Patent Office
Prior art keywords
roll
shaft
lever
warp
journal
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
Application number
EP96113973A
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German (de)
English (en)
Other versions
EP0771896A1 (fr
Inventor
Stefan Arndt
Horst Häussler
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.)
Lindauer Dornier GmbH
Original Assignee
Lindauer Dornier GmbH
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Filing date
Publication date
Application filed by Lindauer Dornier GmbH filed Critical Lindauer Dornier GmbH
Publication of EP0771896A1 publication Critical patent/EP0771896A1/fr
Application granted granted Critical
Publication of EP0771896B1 publication Critical patent/EP0771896B1/fr
Anticipated expiration legal-status Critical
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Classifications

    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
    • D03D49/00—Details or constructional features not specially adapted for looms of a particular type
    • D03D49/04—Control of the tension in warp or cloth
    • D03D49/12—Controlling warp tension by means other than let-off mechanisms

Definitions

  • the invention relates to an uncontrolled tensioning unit of a weaving machine, for a warp consisting of tear-sensitive warp threads.
  • a weaving machine with a smooth-running tensioning device for the warp is known from EP application 0 396 501.
  • the task of the tensioning device here is to create a smoothly driven tensioning system for a warp that is also suitable for heavy fabrics and is sensitive to tension fluctuations in the warp or changes in position in the drive of the system.
  • the object is achieved in that an adjusting mechanism, consisting of a length-adjustable push rod, which is connected to a drive derived from the main drive of the loom and the adjusting mechanism acts on a spring connected to a drive shaft, which is designed as a torsion bar.
  • the drive shaft which is operatively connected to the torsion bar, carries a rotationally symmetrical coating or tensioning roller in bearing points distributed over the weaving width.
  • EP 0 231 726 A1 also known from EP 0 231 726 A1, which is considered to be the closest prior art, is a tensioning unit for the warp, which is received by a carrying and adjusting device and the carrying and adjusting device on a parallel to the coating or tensioning roller Support element is mounted, which is rotatable and fixable relative to the weaving machine frame, and wherein several support arms are attached to the support element, which carry the tensioning unit.
  • EP 0 231 726 A1 does not disclose how, for example in the case of eccentric weaving, ie in the case of an asymmetrical loading of the coating or tensioning roller, a torque compensation takes place within the tensioning unit in order to achieve a largely constant warp tension over the weaving width.
  • Such a constant warp tension is particularly important in the case of tear-sensitive warps in order to keep the frequency of warp thread breaks at a low level.
  • the object of the invention is an uncontrolled clamping unit for to create tear-sensitive warp threads of a warp with the simple Way the warp can be tensioned in which the coating and deflection roller Is low-mass, which is based on a conventional support tree on which the coating roller supports, dispenses, in which the coating roller and the deflection roller are loose which is worn in terms of weaving conditions in the vertical and horizontal plane is positionable and a torque compensation in the clamping unit with possibly different loading of the coating roller enables.
  • the task is characterized by the characteristic features of Claim 1 solved.
  • the clamping unit 1 consists, among other things, of a cross member 2 which is firmly connected to a first left and a first right component 3.
  • the components 3 are slidably carried in a further left and a further right component 4.
  • the component 4 is pivotally connected to the respective side wall 5 and can be locked on the side wall 5 by connecting elements (not shown) via the elongated holes 5a and, for example, threaded holes not visible here.
  • Each component 4 forms a longitudinal groove 4a and elongated holes 4b for connection to the respective component 3, by means of which and by means of connecting elements (not shown) the component 3 can be positioned on the component 4 at a desired distance from the technical and tissue imaging organs (not shown).
  • end shields 6 On the cross member 2 are at least several end shields 6 over its length however, a first outer and a second outer bearing plate 6 are arranged. All end shields 6 lie in a common arrangement level.
  • the individual end shields 6 receive at their free end a lever 8 arranged pivotably about an axis of rotation 7 and parallel to it a lever 9 arranged in a rotationally fixed manner. Both levers form a roller bearing 8a, 9a.
  • the roller roller 10 is loosely carried in the roller bearing 8a of the pivotably arranged lever 8 and the deflection roller 11 is loosely carried in the roller bearing 9a of the non-rotatable lever 9.
  • All end shields 6 are transverse in the area of their connection to the cross member 2 penetrated by a shaft 12 adjustable about its longitudinal axis 12a or the Shaft 12 is received in corresponding bearings and e.g. with little sens one of the end shields 6 can be locked.
  • the tensioning unit 1 also has a torque compensation in order to rule out any asymmetrical loading on the warp 15.
  • a roller bearing carrying a roll neck 10a is inserted into the two free ends of the coating roller 10.
  • a roller bearing 17 is also integrated, which rotatably receives a so-called stabilizer shaft 18, which passes through the deflection roller without contact, on its shaft journal 18a.
  • a tab 19 establishes an operative connection between the rotatably mounted stabilizer shaft 18 and the respective roll neck 10a.
  • connection between the roll neck 10a and the tab 19 is carried out in such a way that the tab 19 has a longitudinal guide 19a into which the roll neck 10a, which has corresponding guide surfaces 10b, engages.
  • a positive connection for example a screw connection 20, between the respective shaft journal 18a and the tab 19.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Looms (AREA)

Claims (4)

  1. Dispositif non commandé de tension de la chaíne d'un métier à tisser, constitué de
    un rouleau étendeur (10) situé du côté de l'ensouple, soutenu dans des paliers-flasques (6), s'étendant sur toute la largeur de tissage du métier à tisser et soumis à l'action d'éléments élastiques (14),
    un rouleau de changement de direction (11) disposé avec son axe parallèle à celui du rouleau étendeur (10) et soutenu dans des paliers-flasques (6),
    un premier composant (4) dispose sur chaque montant latéral (5) du métier à tisser, avec liberté de pivoter et d'être bloqué,
    un second composant (3) qui peut coulisser, sensiblement horizontalement, sur le premier composant en question (4) et y être bloqué, dans lequel les seconds composants (3) sont solidarisés par une traverse (2) s'étendant sur toute la largeur de tissage et dans lequel en outre les paliers-flasques (6) sont disposés sur la traverse (2), à une certaine distance l'un de l'autre sur la longueur de la traverse, caractérisé par le fait que
    chaque palier-flasque présente, dans la zone de son extrémité libre, un premier levier (8) porté avec liberté de rotation et un second levier (9) relié, sans liberté de rotation, au palier-flasque (6), et chaque levier (8,9) forme un palier (8a,9a) pour porter, sans aucune fixation, le rouleau étendeur et le rouleau de changement de direction (10, 11),
    il y a un arbre (12) qui traverse les paliers-flasques (6), qui peut pivoter autour de son axe longitudinal (12a), qui peut se bloquer dans un composant fixe par rapport au métier à tisser et qui possède les éléments d'articulation (13) pour les éléments élastiques (14), éléments élastiques qui réalisent une liaison positive avec l'arbre (12) et avec chaque levier (8) et
    il y a des éléments de compensation (16,17,18,18a,19,19a,20) qui, en présence d'une contrainte dissymétrique du rouleau étendeur (10), opèrent une compensation des mouvements de rotation à l'intérieur du dispositif de tension.
  2. Dispositif de tension selon la revendication 1, caractérisé par le fait que les paliers (8a,9a) sont au choix conçus comme paliers lisses ou paliers à rouleaux.
  3. Dispositif de tension selon la revendication 1, caractérisé par le fait que les éléments de compensation sont constitués d'un tourillon (10a) porté dans les extrémités du rouleau étendeur (10), d'un tourillon (18a), porté dans les extrémités du rouleau de changement de direction (11), d'un arbre stabilisaleur (18) et d'une barrette (19) reliant les tourillons respectifs (10a, 18a).
  4. Dispositif de tension selon la revendication 3, caractérisé par le fait que l'extrémité libre de chaque tourillon (10a) vient en prise dans un guidage longitudinal (19a) prévu dans la zone d'extrémité de la barrette (19) et que l'autre zone d'extrémité de chaque barrette est reliée, par complémentarité de forme, avec le tourillon (18a) de l'arbre stabilisateur (18).
EP96113973A 1995-10-13 1996-08-31 Dispositif non commandé de tension de la chaíne d'un métier à tisser Expired - Lifetime EP0771896B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19538121 1995-10-13
DE19538121A DE19538121C1 (de) 1995-10-13 1995-10-13 Ungesteuerte Spanneinheit für die Webkette einer Webmaschine

Publications (2)

Publication Number Publication Date
EP0771896A1 EP0771896A1 (fr) 1997-05-07
EP0771896B1 true EP0771896B1 (fr) 1999-12-22

Family

ID=7774742

Family Applications (1)

Application Number Title Priority Date Filing Date
EP96113973A Expired - Lifetime EP0771896B1 (fr) 1995-10-13 1996-08-31 Dispositif non commandé de tension de la chaíne d'un métier à tisser

Country Status (4)

Country Link
US (1) US5755268A (fr)
EP (1) EP0771896B1 (fr)
JP (1) JP2983473B2 (fr)
DE (2) DE19538121C1 (fr)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE1011184A3 (nl) * 1997-05-28 1999-06-01 Picanol Nv Inrichting voor het bepalen van de kettingspanning.
DE19740309A1 (de) * 1997-09-13 1999-06-10 Dornier Gmbh Lindauer Verfahren und Vorrichtung zum Einstellen eines Streichbaums und Kettwächters einer Webmaschine zur Erzeugung einer bestimmten Fachgeometrie
IT1304112B1 (it) * 1998-12-17 2001-03-07 Vamatex Nuova Spa Portafili a sospensione progressiva per telaio di tessitura
RU2404303C2 (ru) * 2008-08-07 2010-11-20 Государственное образовательное учреждение высшего профессионального образования "Ивановская государственная текстильная академия" (ИГТА) Способ регулирования натяжения основных нитей и устройство для его осуществления
CN112030327B (zh) * 2020-09-14 2021-11-16 丹阳市益讯机械有限公司 一种织布机的纱线张力调控装置

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3395736A (en) * 1966-06-22 1968-08-06 Toyoda Automatic Loom Works Apparatus for preventing warp yarn breakage in a loom
CH623873A5 (fr) * 1977-12-02 1981-06-30 Sulzer Ag
DE3273224D1 (en) * 1982-10-26 1986-10-16 Sulzer Ag Warp tensioning device on a weaving loom
EP0231726B1 (fr) * 1986-01-13 1989-10-11 GebràœDer Sulzer Aktiengesellschaft Métier à tisser
CH681156A5 (fr) * 1989-05-02 1993-01-29 Sulzer Ag
BE1004624A3 (nl) * 1990-11-22 1992-12-22 Picanol Nv Steuninrichting voor de sleep bij een weefmachine.
JP2534202Y2 (ja) * 1991-12-13 1997-04-30 株式会社豊田自動織機製作所 織機における経糸張力検出装置
DE9312957U1 (de) * 1993-08-30 1993-10-14 Gebra GmbH & Co Gebr. Raderschad KG, 53773 Hennef Schraubendreher
DE4424712A1 (de) * 1994-07-13 1996-01-18 Basf Ag Verwendung von Benzaldehyden zum Markieren von Kohlenwasserstoffen
DE4427126C2 (de) * 1994-07-30 1998-09-17 Dornier Gmbh Lindauer Spanneinheit für die Webkette in einer Webmaschine
DE4427129C2 (de) * 1994-07-30 1998-07-30 Dornier Gmbh Lindauer Spanneinheit für die Webkette einer Webmaschine

Also Published As

Publication number Publication date
JPH09111599A (ja) 1997-04-28
EP0771896A1 (fr) 1997-05-07
DE19538121C1 (de) 1997-02-27
JP2983473B2 (ja) 1999-11-29
US5755268A (en) 1998-05-26
DE59603973D1 (de) 2000-01-27

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