EP0707103A2 - Dispositif de tension de la chaîne pour metier à tisser - Google Patents

Dispositif de tension de la chaîne pour metier à tisser Download PDF

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Publication number
EP0707103A2
EP0707103A2 EP95110332A EP95110332A EP0707103A2 EP 0707103 A2 EP0707103 A2 EP 0707103A2 EP 95110332 A EP95110332 A EP 95110332A EP 95110332 A EP95110332 A EP 95110332A EP 0707103 A2 EP0707103 A2 EP 0707103A2
Authority
EP
European Patent Office
Prior art keywords
roller
support
warp
coating roller
unit according
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
EP95110332A
Other languages
German (de)
English (en)
Other versions
EP0707103A3 (fr
EP0707103B1 (fr
Inventor
Horst Dipl.-Ing. FH Häussler
Wilhelm Dipl.-Ing. Fh Herrlein
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
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 Lindauer Dornier GmbH filed Critical Lindauer Dornier GmbH
Publication of EP0707103A2 publication Critical patent/EP0707103A2/fr
Publication of EP0707103A3 publication Critical patent/EP0707103A3/fr
Application granted granted Critical
Publication of EP0707103B1 publication Critical patent/EP0707103B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • 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
    • D03D49/14—Compensating for tension differences during shedding

Definitions

  • the invention relates to a tensioning unit for the warp in a weaving machine, the weaving machine having a first outer and second outer side cheek, with functional elements on the warp beam side extending over the weaving width, such as a coating roller, a supporting beam connected to the coating roller, which is under the action of a spring element , a deflecting roller and a carrier element with a plurality of end shields, in which the support beam is rotatably received, and further consisting of a plurality of support elements for the match beam arranged over the length of the support beam.
  • a device for tensioning a warp on a weaving machine is known from European patent specification 0 109 472 B1.
  • the object underlying the known invention consists, among other things, of meeting the demands for weaving at high warp tensions, for constant warp tension during weaving of the warp beam and for the lowest possible inertia of the tensioning element which tension the warp during its periodic oscillating movements.
  • a device which consists of a spring-like rod-like tensioning element and a supporting tree, on which the tensioning element is supported several times over the weaving width, and about the center axis of which the tensioning element is arranged pivotably.
  • the tensioning element should be a tensioning element which is rigidly connected to the supporting tree and is not resilient in itself.
  • the known solution meets the aforementioned requirements in that the supporting beam is supported together with a deflecting beam for the warp threads between the warp beam and the tensioning element in several bearing plates connected below the weaving plane with a machine-fixed support.
  • Such a support enables the tensioning element as well as the supporting tree and the deflecting tree to be designed with relatively small cross-sectional dimensions and consequently with low mass.
  • a disadvantage of this solution is that the tensioning element is inevitably in fixed connection with the supporting tree via corresponding connecting pieces. Such a design is costly with regard to the manufacturing process of the support tree tensioning element connection.
  • a device for tensioning the warp is also known from European patent application 0 409 306 A1.
  • the object of the solution according to the invention here is to provide a device for tensioning the warp which is suitable for periodically influencing the tension of the warp as a function of the warp tension present during the change of subject and the sling of the sheet.
  • the object is achieved in that the back rest is received between two supports arranged inside the weaving machine, and each support is mounted on a support arm running below the weaving plane, which in turn has one free end on a second but pivotably mounted arm is articulated.
  • the other free end of the support arm is operatively connected to an eccentric shaft of a gear means.
  • the warp should be periodically tensioned and relieved by means of an eccentric stroke applied periodically by the gear means.
  • the aforementioned technical solution is not based on the design of a particularly low-mass tensioning unit for warp tensioning, including the coating roller and the deflection roller.
  • the object of the invention according to the application is to create a tensioning unit for the warp that does without corresponding connecting pieces between the supporting tree and the tensioning element.
  • An essential feature is that the coating roller is not firmly connected to the support beam, but is loosely received in several bearings arranged over the longitudinal extension of the support beam and that the deflection roller is loosely supported in support bearings, which are supported in separate end shields by the support beam receiving end shields are separated, are included.
  • the arrangement and design of the bearings which are preferably provided as two-point roller bearings both for the coating roller and for the deflection roller, leads to a further reduction in the cross sections of the coating roller, support beam and deflection roller in comparison with the prior art.
  • the solution according to the invention leads in a special way to the fact that no relative movement takes place between the warp threads and the match tree on the one hand and the deflecting tree on the other hand.
  • the invention makes it possible, if necessary, to replace one coating roller or one deflection boom with another coating roller or another deflection boom within a very short time, which is not possible for the rollers in question in the case of plain bearings.
  • Another articulation point 13 of the tensioning element 12 is connected to the free end of a one-armed lever 14, which engages with the support beam 15 in a rotationally fixed manner.
  • a plurality of end shields 16, 16A are arranged on the carrier element 8, which extends from one weaving machine side to the other, but at least a first outer and a second outer end shield 16 and 16A, respectively.
  • All end shields 16, 16A lie in a common plane.
  • the end shields 16 support the support tree 15 in a bearing rotatably.
  • a three-point roller bearing with support rollers 17 proves to be particularly advantageous with regard to the low-mass design of the tensioning unit 7.
  • the two-point roller bearing is formed here by two legs 18A and 18B of the support element 18 of different lengths, which are directed towards the warp 24 and each leg 18a, 18b, at its free end, the axis of rotation 19 or 20 for the roller 21 or 22 bears.
  • the roller roller 23 designed as a tube is received between two rollers 21, 22 of each support element 18 and the warp 24.
  • the deflecting roller 25 is loosely carried in the support bearing 27 of the separate end shields 16A between the coating roller 23 and the warp beam 26, which is indicated by a dash-dot line.
  • the support bearings 27 can be designed as a two-point roller bearing with the rollers 28, 29.
  • the one-armed lever 14 preferably rotatably engages the rotatably mounted support tree 15 symmetrically, namely at each of its free ends.
  • the free end of each lever 14 is connected to the other articulation point 13 of the tensioning element 12, which acts as a tension spring.
  • the force flow of the tensioning force applied by the tensioning element 12 therefore runs from the spring element 12 via the lever 14 to the support beam 15 with the support elements 18 to the coating roller 23 and from there onto the warp 24th This ensures that the weaving warp 24 can always be kept under a constant warp tension over the weaving width when using the tensioning unit 7 according to the invention.
EP95110332A 1994-07-30 1995-07-03 Dispositif de tension de la chaíne pour metier à tisser Expired - Lifetime EP0707103B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4427126 1994-07-30
DE4427126A DE4427126C2 (de) 1994-07-30 1994-07-30 Spanneinheit für die Webkette in einer Webmaschine

Publications (3)

Publication Number Publication Date
EP0707103A2 true EP0707103A2 (fr) 1996-04-17
EP0707103A3 EP0707103A3 (fr) 1996-07-24
EP0707103B1 EP0707103B1 (fr) 1998-11-25

Family

ID=6524598

Family Applications (1)

Application Number Title Priority Date Filing Date
EP95110332A Expired - Lifetime EP0707103B1 (fr) 1994-07-30 1995-07-03 Dispositif de tension de la chaíne pour metier à tisser

Country Status (4)

Country Link
US (1) US5558132A (fr)
EP (1) EP0707103B1 (fr)
JP (1) JP2693408B2 (fr)
DE (2) DE4427126C2 (fr)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19538121C1 (de) * 1995-10-13 1997-02-27 Dornier Gmbh Lindauer Ungesteuerte Spanneinheit für die Webkette einer Webmaschine
EP0812940A1 (fr) * 1996-06-11 1997-12-17 Sulzer Rüti Ag Dispositif pour tendre la chaîne ainsi que métier à tisser avec un tel dispositif
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
EP0937796A1 (fr) * 1998-02-18 1999-08-25 Sulzer Rüti Ag Dispositif de tension des fils de chaine pour métier à tisser et métier à tisser avec un tel dispositif
IT1304112B1 (it) * 1998-12-17 2001-03-07 Vamatex Nuova Spa Portafili a sospensione progressiva per telaio di tessitura
US7922696B2 (en) 2007-01-24 2011-04-12 Access Scientific, Inc. Access device
JP2010524586A (ja) 2007-04-18 2010-07-22 アクセス サイエンティフィック、インク． 進入装置
AU2008242650A1 (en) 2007-04-18 2008-10-30 Access Scientific, Inc. Access device
EP2265313A2 (fr) 2008-03-14 2010-12-29 Access Scientific, Inc. Dispositif d accès
JP2009293151A (ja) * 2008-06-05 2009-12-17 Tsudakoma Corp 織機のテンションロール支持機構
US9884169B2 (en) 2011-08-17 2018-02-06 Access Scientific, Llc Access device with valve

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0109472B1 (fr) 1982-10-26 1986-09-10 GebràœDer Sulzer Aktiengesellschaft Dispositif pour tendre la chaîne à une machine à tisser

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE650888C (de) * 1936-03-01 1937-10-06 Saechsische Webstuhlfabrik Negatives, direkt wirkendes Kettenablassregelgetriebe
BE795452A (fr) * 1972-02-15 1973-05-29 Nissan Motor Mecanisme de commande de la tension de fils de chaine
CH615709A5 (fr) * 1977-03-09 1980-02-15 Sulzer Ag
FR2432059A1 (fr) * 1978-07-24 1980-02-22 Saurer Diederichs Sa Dispositif evitant les differences de duitage au demarrage dans une machine a tisser
JPS5982450A (ja) * 1982-11-04 1984-05-12 日産自動車株式会社 織機のバックレスト位置調整装置
JPS6026849A (ja) * 1983-07-25 1985-02-09 Shinpo Kogyo Kk 摩擦無段変速機
DE3666235D1 (en) * 1986-01-13 1989-11-16 Sulzer Ag Loom
CH681156A5 (fr) * 1989-05-02 1993-01-29 Sulzer Ag
BE1004382A3 (nl) * 1989-07-17 1992-11-10 Picanol Nv Inrichting voor het verplaatsen van de sleep bij weefmachines.
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

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0109472B1 (fr) 1982-10-26 1986-09-10 GebràœDer Sulzer Aktiengesellschaft Dispositif pour tendre la chaîne à une machine à tisser

Also Published As

Publication number Publication date
DE59504323D1 (de) 1999-01-07
DE4427126A1 (de) 1996-02-01
EP0707103A3 (fr) 1996-07-24
US5558132A (en) 1996-09-24
DE4427126C2 (de) 1998-09-17
JPH0849138A (ja) 1996-02-20
JP2693408B2 (ja) 1997-12-24
EP0707103B1 (fr) 1998-11-25

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