EP1217115B1 - Dispositif d'entraînement du chariot porte-couteau sur un métier à tisser les tapis doubles - Google Patents

Dispositif d'entraînement du chariot porte-couteau sur un métier à tisser les tapis doubles Download PDF

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Publication number
EP1217115B1
EP1217115B1 EP20000128319 EP00128319A EP1217115B1 EP 1217115 B1 EP1217115 B1 EP 1217115B1 EP 20000128319 EP20000128319 EP 20000128319 EP 00128319 A EP00128319 A EP 00128319A EP 1217115 B1 EP1217115 B1 EP 1217115B1
Authority
EP
European Patent Office
Prior art keywords
knife carriage
drive
knife
traction means
carriage
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
EP20000128319
Other languages
German (de)
English (en)
Other versions
EP1217115A1 (fr
Inventor
Martin Burkert
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.)
Schoenherr Textilmaschinenbau GmbH
Schonherr Textilmaschinenbau BMBH
Original Assignee
Schoenherr Textilmaschinenbau GmbH
Schonherr Textilmaschinenbau BMBH
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 Schoenherr Textilmaschinenbau GmbH, Schonherr Textilmaschinenbau BMBH filed Critical Schoenherr Textilmaschinenbau GmbH
Priority to EP20000128319 priority Critical patent/EP1217115B1/fr
Priority to DE50015939T priority patent/DE50015939D1/de
Publication of EP1217115A1 publication Critical patent/EP1217115A1/fr
Application granted granted Critical
Publication of EP1217115B1 publication Critical patent/EP1217115B1/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
    • D03D39/00—Pile-fabric looms
    • D03D39/16—Double-plush looms, i.e. for weaving two pile fabrics face-to-face
    • D03D39/18—Separating the two plush layers, e.g. by cutting

Definitions

  • the invention relates to a drive device for the knife carriage on a double carpet loom for separating upper fabric and lower fabric, with a guided on both sides of the double carpet fabric guide rollers traction means, wherein the traction means is positively connected to a single, rotating in alternating directions drive means and wherein the knife carriage in a Guide is movable over a stroke range which is greater than the width of the double carpet fabric.
  • a drive device for the knife carriage of this type is in the GB 890,393 described.
  • the knife carriage is driven by a cord.
  • the two ends of the cord are mounted on a smooth rope drum and are alternately on the rope drum up and then unwound from her.
  • the cable drum is driven by the motor in alternating directions. The direction of rotation of the motor can be switched by limit switches.
  • the motor is arranged together with the cable drum side of the fabric web and at a large distance below the cutting plane.
  • the ratio of the maximum length of the pulling strand to the minimum length of the pulling strand is very large.
  • the knife carriage moves in uncontrollable and different ways beyond the given stroke depending on the weaving machine speed. It is not possible to carry out any manipulations on the knife carriage (control of the knife, grinding of the knife or adjustment of the knife) during the stroke reversal in confined areas.
  • the different movement characteristics of the blade carriage within the tissue to be separated as a function of the direction of movement of the blade carriage leads to different pile heights, which can not be eliminated by a subsequent shearing the Pol für.
  • the described disadvantages increase with increasing weaving speed.
  • Another embodiment describes the DE 195 36 002 A1 ,
  • the basic structure of the knife carriage drive corresponds to that with respect to the GB 890,393 described and evaluated.
  • the cable drum for driving the traction means is provided with the purpose of controlled winding of the rope with spiral grooves.
  • the cross section of the groove is designed so that it can only accommodate a cable cross section.
  • the controlled winding and unwinding of the rope pulleys allows the precision of the drive to be significantly improved.
  • the cable drum is driven by a computer-controlled motor (servomotor).
  • the control of the drive motor can be corrected depending on the respective engine speed.
  • the motor is located near the plane of movement of the knife carriage laterally outside of the fabric. With this arrangement, it is possible to control the movement of the blade carriage very precisely in the region of a reversal of direction. It is possible to provide in this area stations for controlling the knife, sharpening the knife and adjusting the knife, which require accurate positioning of the knife carriage at a given location at a given time.
  • JP-A-2000-34644 discloses a knife carriage driving apparatus having a rope having two ends fixedly connected to the frame of the loom.
  • the rope has to be long and the knife carriage can not be driven exactly.
  • EP-A-0 241 036 discloses a cutting device for a double-piece weaving machine.
  • a toothed belt runs up to a laterally arranged gear wheel.
  • the object of the invention is to make the overtravel of the blade carriage at different working speeds of the loom and the cutting device in the area of both fabric edges low and controllable and cut even at high weaving speeds all rows of pins reliably and under almost the same conditions, so that a high surface quality of Carpets can be guaranteed.
  • the design of the guide of the drive means according to claim 3, makes it possible to avoid additional clamping means. These additional guide rollers make it possible, especially when using timing belts, to secure Engagement of the toothed belt in its drive toothed disc.
  • the servomotor with servomotor is particularly suitable for weaving machines where the fabric width is to be changed frequently.
  • the weaving zone of the double carpet weaving machine 1 is substantially represented by the shed forming elements (not designated) and the sley 121.
  • the sley 121 swings around the loading shaft 12 in a conventional manner.
  • the double-rug fabric 5 guided following the weaving zone is separated into a top fabric 51 and a bottom fabric 52 by means of a knife carriage 2 moved in alternating directions across the width of the fabric.
  • the blade of the knife carriage 2 separates the spanned between upper fabric 51 and lower fabric 52 Polhenkel centered between the two basic goods.
  • the knife carriage 2 is guided exactly on a guide 13, so that the knife of the prescribed path in the vertical direction as possible can not deviate.
  • the knife carriage 2 is regularly driven so that it is moved once over the width of the fabric 5 during the production of a pole row. If another row of poles is formed, it moves back at the same speed. Depending on the selected pile material and the stability of the knife, the cutting process can also be carried out at a lower speed. In this case, however, more than one Polhenkel Engineering must be cut with a cut in a hub.
  • a toothed belt 21 For driving the knife is in Fig. 1 preferably a toothed belt 21 has been used.
  • This toothed belt 21 is fixedly connected to the knife carriage 2 in the region of the upper run.
  • the toothed belt 21 is guided via the outer guide rollers 15, 15 'and via the inner guide rollers 16, 16' from and to the drive means 23.
  • a toothed belt pulley 23 When using a toothed belt serves as a drive means a toothed belt pulley 23, the toothing of course, the toothed belt 21 is adjusted.
  • This gear 23 is in the example of Fig. 1 and 2 driven by servo motor 3.
  • the respective drive movement of this servomotor 3 is in the usual way before the control unit 31.
  • the drive movement of the servomotor 3 can be predetermined by means of different, selectable programs and, if necessary, be corrected as a function of specific measured values.
  • the total length and hereby the proportional total extension of the traction means 21, 22 is plotted on the X-axis.
  • the two end positions A, B and the middle position M of the knife carriage 2, adapted to the position of the drive means 23, 24 are marked on this axis.
  • the Y-axis shows the mechanical cable force F in the respective traction means at an assumed, uniform operating speed of the loom.
  • the operating force FB is correspondingly plotted for the blade carriage positions A, M, B.
  • the cable force F reaches a maximum value FRmax and FLmax for the right and the left stroke - respectively in the middle position, which is equally low for both directions. If we take the operating force FB as the benchmark and set it equal to 100, then the maximum cable force is 150%. If one deducts from this value, the residual prestress with 25%, then there remains a force difference of 125%, which loads the traction means dynamic. Such a stress is quite acceptable for the execution of the cutting process. The differences in speed during the cutting process - from the left as well as from the right - in the fabric are so small that quality differences on average can not be determined.

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

Claims (3)

  1. Dispositif d'entraînement pour le chariot porte-couteau d'une machine à tisser des tapis à double foule, qui est destiné à séparer le tissu supérieur et le tissu inférieur,
    - comportant un moyen de traction (21) guidé par des poulies de guidage (15, 15')
    - disposées de part et d'autre du tissu de tapis double foule (5),
    - ledit moyen de traction (21) étant relié par conjugaison de forme avec un seul moyen d'entraînement (23) tournant dans des directions alternées,
    - le moyen de traction (21) formant, par l'intermédiaire des poulies de guidage (15, 15'), une boucle fermée à partir du moyen d'entraînement (23) et vers celui-ci, et
    - le chariot porte-couteau (2) étant mobile dans un moyen de guidage (13) sur une zone de mouvement (S), qui est plus grande que la largeur (B) du tissu du tapis double,
    caractérisé en ce que le moyen d'entraînement (23), tournant dans des directions alternées, est disposé à l'intérieur de la largeur du châssis de la machine à tisser, sensiblement au milieu par rapport à la zone de mouvement (S) du chariot porte-couteau (2), en ce que le moyen de traction est réalisé sous la forme d'une courroie dentée (21) et le moyen d'entraînement est réalisé sous forme d'une roue dentée (23), et en ce que la roue dentée est actionnée par un servomoteur (3).
  2. Dispositif d'entraînement selon la revendication 1, caractérisé en ce que le moyen d'entraînement (23) est monté en dessous du moyen de guidage (13) pour le chariot porte-couteau (2) et en dessous du tissu inférieur (52).
  3. Dispositif d'entraînement selon l'une quelconque des revendications 1 à 2, caractérisé en ce qu'au-dessus du moyen d'entraînement (23) rotatif sont disposées deux autres poulies de guidage (16, 16'), par lesquelles le moyen de traction (21) est guidé à partir du moyen d'entraînement (23) ou vers celui-ci.
EP20000128319 2000-12-22 2000-12-22 Dispositif d'entraînement du chariot porte-couteau sur un métier à tisser les tapis doubles Expired - Lifetime EP1217115B1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP20000128319 EP1217115B1 (fr) 2000-12-22 2000-12-22 Dispositif d'entraînement du chariot porte-couteau sur un métier à tisser les tapis doubles
DE50015939T DE50015939D1 (de) 2000-12-22 2000-12-22 Antriebsvorrichtung für den Messerschlitten an einer Doppelteppichwebmaschine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP20000128319 EP1217115B1 (fr) 2000-12-22 2000-12-22 Dispositif d'entraînement du chariot porte-couteau sur un métier à tisser les tapis doubles

Publications (2)

Publication Number Publication Date
EP1217115A1 EP1217115A1 (fr) 2002-06-26
EP1217115B1 true EP1217115B1 (fr) 2010-06-09

Family

ID=8170785

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20000128319 Expired - Lifetime EP1217115B1 (fr) 2000-12-22 2000-12-22 Dispositif d'entraînement du chariot porte-couteau sur un métier à tisser les tapis doubles

Country Status (2)

Country Link
EP (1) EP1217115B1 (fr)
DE (1) DE50015939D1 (fr)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1394301B1 (fr) * 2002-08-24 2006-06-07 SCHÖNHERR Textilmaschinenbau GmbH Dispositif d'entraînement pour le chariot porte-lame d'un métier à tisser double peluche
FR2886951B1 (fr) * 2005-06-08 2007-08-31 Schonherr Textilmaschb Gmbh Dispositif d'insertion de fils de trame pour metier a deux nappes superposees et metier a tisser equipe d'un tel dispositif
EP2554728B1 (fr) * 2011-08-01 2019-01-02 STÄUBLI BAYREUTH GmbH Procédé pour couper des fils de velours de chaîne et métier à tisser des tapis double pour l'application d'un tel procédé
CN104313770A (zh) * 2014-10-22 2015-01-28 杭州创兴织造设备科技有限公司 一种双层织物切割装置
BE1024400B1 (nl) 2016-07-15 2018-02-13 Michel Van De Wiele Nv Inrichting voor het doorsnijden van pooldraden op een weefmachine
CN110552102A (zh) * 2019-09-24 2019-12-10 华应奎 一种简易式机上割绒装置

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0241036A3 (fr) 1986-04-10 1988-02-03 N.V. Michel Van de Wiele Dispositif de coupe pour un métier double peluche, plus particulièrement entraínement pour un tel dispositif de coupe et métier à tisser pourvu d'un tel dispositif de coupe
DE3703821C1 (en) * 1987-02-07 1988-03-03 Guesken Gmbh & Co Kg Jean Device for cutting double fabrics
BE1003893A4 (nl) * 1989-05-26 1992-07-07 Wiele Michel Van De Nv Snij-inrichting voor dubbelstukweefmachine, meer in het bijzonder aandrijving voor dergelijke snij-inrichting, en weefmachine met dergelijke snij-inrichting uitgerust.
DE19536002A1 (de) * 1995-09-28 1997-04-03 Chemnitzer Webmasch Gmbh Antriebsvorrichtung für den Messerschlitten zum Trennen von Obergewebe und Untergewebe
JP2000034644A (ja) 1998-07-15 2000-02-02 Howa Mach Ltd カッター装置を有する織機

Also Published As

Publication number Publication date
DE50015939D1 (de) 2010-07-22
EP1217115A1 (fr) 2002-06-26

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