EP0789097B1 - Procédé et dispositif pour mesurer la tension de la chaíne dans un métier à tisser - Google Patents

Procédé et dispositif pour mesurer la tension de la chaíne dans un métier à tisser Download PDF

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Publication number
EP0789097B1
EP0789097B1 EP96810074A EP96810074A EP0789097B1 EP 0789097 B1 EP0789097 B1 EP 0789097B1 EP 96810074 A EP96810074 A EP 96810074A EP 96810074 A EP96810074 A EP 96810074A EP 0789097 B1 EP0789097 B1 EP 0789097B1
Authority
EP
European Patent Office
Prior art keywords
force
pickup
accordance
tensioning member
action
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
EP96810074A
Other languages
German (de)
English (en)
Other versions
EP0789097A1 (fr
Inventor
Godert Dr. De Jager
Dietmar Markward
Lorant Gacsay
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.)
Itema Switzerland Ltd
Original Assignee
Sulzer Textil 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 Sulzer Textil AG filed Critical Sulzer Textil AG
Priority to DE59605592T priority Critical patent/DE59605592D1/de
Priority to EP96810074A priority patent/EP0789097B1/fr
Priority to US08/766,381 priority patent/US5827975A/en
Priority to JP9005269A priority patent/JPH09241947A/ja
Publication of EP0789097A1 publication Critical patent/EP0789097A1/fr
Application granted granted Critical
Publication of EP0789097B1 publication Critical patent/EP0789097B1/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
    • D03D49/18—Devices for indicating warp tension
    • 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

Definitions

  • the invention relates to a method for measuring the Tension of a warp in a weaving machine according to the Preamble of claim 1 and a device for Implementation of the method according to the preamble of claim 4.
  • a method and such an apparatus are known from EP-A-0 547 003.
  • the warp threads are Heald frames more or less deflected so that Tension fluctuations occur in the warp threads.
  • the under Spring action stand a pivoting movement from.
  • the invention seeks to remedy this.
  • the invention as characterized in the claims, solves the Task, a method and a device for measuring to create the tension of a warp, the Deviations are kept within narrow limits and the Measured values with little effort for direct inclusion be provided in a scheme.
  • Fig. 1 the course of the warp threads and the Fabric in a weaving machine as well as with these interacting elements of the weaving machine.
  • a warp let-off device (not shown) controlled warp beam 1 unwound Warp threads 2 run over a deflection tree 3, one Device 4 for tensioning the warp 2 into one
  • a weave 8 runs after the tie point 7 via a breast tree 9, a goods take-off device 10 a goods tree 11, where the fabric 8 is wound up.
  • the device 4 in question contains one Tragbaum 14, the fixed or swiveling in the Weaving machine is arranged and a tension tree 15, with the support tree 14 is connected and about an axis 16 around the stationary support boom or is pivotable with the support boom.
  • the spanning tree 15 is low in mass, i.e. tubular trained and in a plurality of bearings supported within the weaving width. According to the invention Embodiments of the device 4 are described with reference to FIG Figures 3 to 6 described.
  • the weaving machine is like that designed that the spanning tree, in terms of its Pivot axis vertical position a basic position 0 ° occupies within the swivel range and with respect this basic position can be pivoted, for example, +/- 25 ° where the sign + is a swivel movement in Direction of warp and the sign - one Indicates pivoting movement against the warp running direction.
  • the textile-technical data and the yarn-specific data a partial swivel range of the Spannbaumes determined to maintain the Tension of the warp is required.
  • a force profile can be determined for a force F M directed in the warp direction, the change of which is kept within narrow limits.
  • This force F M is measured at one of the bearing points.
  • a force transducer which is aligned with the line of action of the force F M , thus generates an essentially constant signal, which is included in the control.
  • the swiveling range corresponding to the yarn properties can thus be determined within the swiveling movement of the tensioning tree in order to generate the required warp tension F K in the warp.
  • FIG. 2 in schematic representation of the assignment of the for relevant elements according to the method and Forces in two swivel positions within one Partial swivel range shows.
  • a force F M to be measured is determined on the basis of the geometric arrangement and the line whose change in direction with respect to the connection R ST between the supporting tree and the spanning tree is constant and the size is almost constant.
  • the value of the angle ⁇ changes with the pivoting. This change is both from the change of the angle ⁇ and ⁇ dependent.
  • the swivel range for the spanning boom is determined so that the basic position is within the partial swivel range.
  • the warp tension can be determined largely correctly by measuring the force F M regardless of the position of the tensioning boom and the measured value can be directly included in the control of the warp let-off.
  • FIG. 3 shows a first embodiment of a device 4 according to the invention.
  • the spanning tree 15 is supported at its ends in a lever 21 which is arranged on the stationary supporting tree 14 and can be pivoted about the axis 16.
  • a spring 22 is provided in order to produce the tensioning effect on the warp 2.
  • the clamping tree 15 is provided with trunnions 23, which are each rotatably arranged in a bearing bush 24.
  • a force transducer 25 is integrated in the bearing bush 24 such that the normal runs in the center of the pressure receiving surface and through the center of the bearing bush.
  • the bearing bush 24 is arranged in the lever 21 so that the normal is congruent with the line of action of the force F M.
  • the bearing bush 24 can be fixed in the bore of the lever 21 by means of a set screw, pin or the like.
  • the spanning tree 15 is supported on a rolling basis.
  • a bearing block 31 is provided.
  • the bearing block 31 is arranged on a shaft 32 which is under spring action and can be pivoted about the axis 16.
  • a roller 33 is assigned a force transducer 35, which is arranged in the bearing block 31 and is connected to the bearing journal 34 in a force-transmitting manner such that the normal in the center of the pressure receiving surface is congruent with the line of action of the force F M.
  • FIG. 5 shows an embodiment of a Device according to the invention, in which instead of a Roll a support member 41 in the bracket 31 pivotable is arranged.
  • the support member 41 has journals 42 which are rotatably mounted in the bearing block 31 and a semicircular recess 43, the radius of which Outside diameter of the clamping tree 15 is adjusted, so that the recess 43 in a form-fitting manner with the spanning tree Connection is established.
  • a force transducer 35 is in the support part 41 arranged so that the normal of Pressure receiving area through the center line of the radius of the Recess 43 runs.
  • FIG. 6 shows an embodiment of the Device according to the invention, in which the spanning tree 15 is supported on a rolling basis.
  • a support part 51 which is fixed on the shaft 32 and an arrangement 52 provided with two rollers 53 which on the support member 51st is adjustably mounted.
  • On the support member 51 is a curved receiving part 54 for the arrangement 52 attached, the radius of curvature on the center line of the supported on the rollers 53 of the assembly 52 Spannbaumes 15 lies.
  • the arrangement 52 has a cage 55 on, in which the rollers 53 rotatably mounted are.
  • the cage 55 is designed so that it positively rests on the receiving part 52.
  • One Roll 33 is assigned a force transducer 34, which in Cage 55 arranged and with the journal of the roller is connected to transmit power, such that the normal the pressure receiving area through the axis of rotation of the roller 33 runs.
  • the arrangement 52 is adjustably arranged on the receiving part 54 in order to adjust the normal of the pressure receiving surface to the force F M to be measured, so that the normal of the pressure receiving surface and the line of action of the force F M are congruent.
  • a screw 56 is provided to fix the set position.
  • a force F M is measured which, depending on the course of the warp 2 and on the geometric arrangement of the deflecting element 3, the tensioning element 15 and the swivel axis 16, has approximately the same size over the swivel range.
  • the warp tension can be largely correctly determined by measuring the force F M regardless of the position of the tensioning element and the measured value can be directly incorporated into the control of the warp let-off.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Looms (AREA)
  • Tension Adjustment In Filamentary Materials (AREA)

Claims (13)

  1. Procédé pour mesurer la tension d'une chaíne dans un métier à tisser, où la chaíne (2) est amenée à passer sur un organe de détour (3) et un organe tendeur (15) symétrique en rotation, soumis à l'action d'un ressort, qui est amené à pivoter, sous l'effet de la chaíne, autour d'un axe (16) et où une force agissant sur l'organe tendeur est mesurée par un capteur de forces (25), caractérisé en ce que le capteur de forces est relié à l'organe tendeur de manière à transmettre des forces, qu'il est déterminé à l'aide des données se rapportant à la technique textile et des données spécifiques aux fils une zone de pivotement partielle de l'ensouple tendeuse et que la force FM est mesurée, où la ligne d'action de la force à mesurer FM est fixée pour chaque zone de pivotement partielle de façon que la force FM, en fonction de l'allure de la chaíne et de l'agencement géométrique de l'organe de détour (3), de l'organe tendeur (15) et de l'axe de pivotement (16), présente sur la zone de pivotement partielle sensiblement la même grandeur.
  2. Procédé selon la revendication 1, caractérisé en ce que la force FM est mesurée dont la ligne d'action forme avec un plan reliant la ligne médiane de l'organe tendeur (15) et l'axe de pivotement (16) un angle ϕ inférieur ou supérieur à 90° et que la force est mesurée pendant le mouvement de va-et-vient.
  3. Procédé selon l'une des revendications 1 ou 2, caractérisé en ce que l'organe tendeur (15) est amené à pivoter dans des zones de pivotement partielles pouvant être sélectionnées de, par exemple, 15° et que la ligne d'action de la force à mesurer FM est fixée pour chaque zone de pivotement partielle.
  4. Dispositif pour la mise en oeuvre du procédé selon l'une des revendications 1 à 3, avec un organe de détour (3), un organe tendeur (15) qui peut être amené à pivoter autour d'un axe (16), un capteur de forces (25, 35), un organe (21, 51) soumis à l'action d'un ressort qui peut être amené à pivoter autour de l'axe (16) et un agencement (24, 52) pour la réception de l'organe tendeur (15), caractérisé en ce que le capteur de forces (25, 35) présente une face de réception de pression élastique en flexion et au moins un élément de mesure qui est relié à la face de réception de pression, que le capteur de forces (25, 35) est intégré dans l'agencement (24, 52) et que le capteur de forces (25, 35) et l'organe tendeur (15) sont disposés de telle façon l'un relativement à l'autre que la normale dans le centre de la face de réception de pression et la ligne d'action de la force à mesurer FM soient orientées sensiblement de la même manière, où la ligne d'action est fixée de telle sorte que la force FM présente sur la zone de pivotement sensiblement la même grandeur.
  5. Dispositif selon la revendication 4, caractérisé en ce que le capteur de forces (25, 35) et l'organe tendeur (15) sont disposés de telle façon l'un relativement à l'autre que la normale et la ligne d'action coïncident.
  6. Dispositif selon l'une des revendications 4 ou 5, caractérisé en ce que l'organe tendeur (15) prend appui sur des emplacements de palier et qu'au moins un emplacement de palier est équipé d'un capteur de forces (25, 35).
  7. Dispositif selon l'une des revendications 4 à 6, caractérisé en ce que l'agencement (24, 52) est réglable relativement à l'organe (21, 51) dans la direction périphérique de l'organe tendeur (15) pour orienter le capteur de forces (25, 35) selon la ligne d'action de la force à mesurer FM.
  8. Dispositif selon la revendication 7, caractérisé par des moyens de positionnement pour ajuster l'agencement (24, 52) relativement à la ligne d'action de la force à mesurer FM.
  9. Dispositif selon l'une des revendications 7 ou 8, caractérisé en ce que l'agencement est une douille de palier (24) qui est disposée dans l'organe (21) et qui comporte un moyen pour fixer la douille de palier (24) d'une manière immobile en rotation et que le capteur de forces (25) est intégré dans la douille de palier (24).
  10. Dispositif selon l'une des revendications 4 ou 7, caractérisé en ce que l'agencement (52) est constitué d'une cage (55) et de deux rouleaux (33) et que le capteur de forces (35) est relié à un rouleau (33) de manière à transmettre les forces.
  11. Dispositif selon l'une des revendications 4 à 6, caractérisé par un palier (31) avec deux rouleaux (33) sur lesquels prend appui l'organe tendeur (15) et que le capteur de forces (35) est relié à un rouleau (33) de manière à transmettre les forces.
  12. Dispositif selon l'une des revendications 4 à 6, caractérisé par un palier (31) avec un rouleau (33) et une pièce d'appui (41) sur laquelle prend appui l'organe tendeur (15), et que le capteur de forces (35) est disposé dans la pièce d'appui (41).
  13. Métier à tisser comportant un dispositif selon l'une des revendications 4 à 11, caractérisé en ce que le dispositif est disposé dans l'extension de la chaíne de tissage en aval d'une ensouple (1).
EP96810074A 1996-02-05 1996-02-05 Procédé et dispositif pour mesurer la tension de la chaíne dans un métier à tisser Expired - Lifetime EP0789097B1 (fr)

Priority Applications (4)

Application Number Priority Date Filing Date Title
DE59605592T DE59605592D1 (de) 1996-02-05 1996-02-05 Verfahren und Vorrichtung zum Messen der Spannung der Webkette in einer Webmaschine
EP96810074A EP0789097B1 (fr) 1996-02-05 1996-02-05 Procédé et dispositif pour mesurer la tension de la chaíne dans un métier à tisser
US08/766,381 US5827975A (en) 1996-02-05 1996-12-05 Method and apparatus for measuring the tension of the warp in a weaving machine
JP9005269A JPH09241947A (ja) 1996-02-05 1997-01-16 織機における経糸の張力を測定するための方法及び装置

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP96810074A EP0789097B1 (fr) 1996-02-05 1996-02-05 Procédé et dispositif pour mesurer la tension de la chaíne dans un métier à tisser

Publications (2)

Publication Number Publication Date
EP0789097A1 EP0789097A1 (fr) 1997-08-13
EP0789097B1 true EP0789097B1 (fr) 2000-07-12

Family

ID=8225544

Family Applications (1)

Application Number Title Priority Date Filing Date
EP96810074A Expired - Lifetime EP0789097B1 (fr) 1996-02-05 1996-02-05 Procédé et dispositif pour mesurer la tension de la chaíne dans un métier à tisser

Country Status (4)

Country Link
US (1) US5827975A (fr)
EP (1) EP0789097B1 (fr)
JP (1) JPH09241947A (fr)
DE (1) DE59605592D1 (fr)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE59905063D1 (de) * 1998-12-09 2003-05-22 Sultex Ag Rueti Einrichtung zum gesteuerten Bewegen eines Kettfadens
US7121138B2 (en) * 2003-09-02 2006-10-17 Infineon Technologies Ag Apparatus and method for detecting a tire deformation of a vehicle tire
JP5095316B2 (ja) * 2007-09-05 2012-12-12 東芝機械株式会社 織機及び織機の駆動装置。
CN101338473B (zh) * 2008-08-07 2011-03-16 浙江大学 织机经纱张力控制方法
CN101481848B (zh) * 2009-02-23 2011-04-06 常州市润源经编机械有限公司 适用于经编机织物的卷取装置
CN103306023B (zh) * 2013-07-09 2014-05-21 江苏万工科技集团有限公司 一种分段经纱张力和伸长关系的测量方法及其装置
CN104328583A (zh) * 2014-10-22 2015-02-04 杭州创兴织造设备科技有限公司 一种在经轴输出经线处的张力检测机构

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3366299A (en) * 1965-09-16 1968-01-30 Atlas Chem Ind Tension measuring apparatus
US3526252A (en) * 1968-09-04 1970-09-01 Hindle Son & Co Ltd Loom warp letting-off mechanism
CH569968A5 (fr) * 1973-09-19 1975-11-28 Bobst Fils Sa J
US3994162A (en) * 1975-10-02 1976-11-30 David William Auckland Yarn tension measuring
US4384494A (en) * 1981-08-24 1983-05-24 Milliken Research Corporation Belt tension detector
JPS60155757A (ja) * 1984-01-20 1985-08-15 津田駒工業株式会社 織機の電動送り出し・巻取制御方法およびその装置
BE905314A (nl) * 1986-08-22 1987-02-23 Picanol Nv Werkwijze voor de sturing van de kettingaflaat en de doekopwikkeling bij weefmachines.
JPH0551845A (ja) * 1991-08-12 1993-03-02 Toyota Autom Loom Works Ltd 織機における経糸張力検出方法及び装置
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
SE470314B (sv) * 1992-06-10 1994-01-17 Aelmhults Bruk Ab Kontrollanordning för varptrådsspänning innefattande sträckbromssystem med mot varandra med varptrådar mellanliggande pressade bommar
BE1008135A3 (nl) * 1994-03-18 1996-01-23 Picanol Nv Inrichting en werkwijze voor het bepalen van de kettingspanning.

Also Published As

Publication number Publication date
DE59605592D1 (de) 2000-08-17
JPH09241947A (ja) 1997-09-16
US5827975A (en) 1998-10-27
EP0789097A1 (fr) 1997-08-13

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