EP0198145A1 - Procédé et dispositif pour l'exploitation de métiers à tisser à pinces - Google Patents

Procédé et dispositif pour l'exploitation de métiers à tisser à pinces Download PDF

Info

Publication number
EP0198145A1
EP0198145A1 EP85810172A EP85810172A EP0198145A1 EP 0198145 A1 EP0198145 A1 EP 0198145A1 EP 85810172 A EP85810172 A EP 85810172A EP 85810172 A EP85810172 A EP 85810172A EP 0198145 A1 EP0198145 A1 EP 0198145A1
Authority
EP
European Patent Office
Prior art keywords
belt
entry
shed
weaving
gripper
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.)
Withdrawn
Application number
EP85810172A
Other languages
German (de)
English (en)
Inventor
Anton Egloff
Lothar Köhler
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.)
Sulzer AG
Original Assignee
Sulzer AG
Gebrueder Sulzer 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 AG, Gebrueder Sulzer AG filed Critical Sulzer AG
Priority to EP85810172A priority Critical patent/EP0198145A1/fr
Publication of EP0198145A1 publication Critical patent/EP0198145A1/fr
Withdrawn legal-status Critical Current

Links

Images

Classifications

    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
    • D03D47/00—Looms in which bulk supply of weft does not pass through shed, e.g. shuttleless looms, gripper shuttle looms, dummy shuttle looms
    • D03D47/12—Looms in which bulk supply of weft does not pass through shed, e.g. shuttleless looms, gripper shuttle looms, dummy shuttle looms wherein single picks of weft thread are inserted, i.e. with shedding between each pick

Definitions

  • the invention relates to a method for the operation of a belt rapier weaving machine with a weft insertion belt carrying a thread rapier.
  • the invention further relates to an apparatus for performing the method.
  • the invention is of particular importance when using a carbon fiber reinforced entry belt, as well as with certain weaves, e.g. Ribs.
  • the entry bar is coated at one or more points that lie between the guide rollers for the entry bar.
  • the coating material is fed to the guide rollers during the entry and delivered to them, as a result of which the guide rollers are lubricated free of oil and grease.
  • the entry bar enters the shed largely without any coating.
  • the invention has for its object to provide a method and an associated device which is particularly improved in this regard.
  • the method according to the invention consists in that the entry belt is coated with a smoothing material, preferably plastic, on at least part of its cross-sectional circumference before it enters the shed and is then moved into the shed while the weft is being inserted while maintaining this applied smoothing layer.
  • a smoothing material preferably plastic
  • the device for performing the method is characterized by a made of an abrasive, e.g. Plastic existing rubbing element located on the entry path of the entry belt outside the shed and in contact with the entry belt.
  • the coating on the entry belt is carried into the shed and is not transferred or transferred to other parts of the weaving machine before the shed is reached can result in the edges of the entry belt, in particular the rear edge facing the reed, being smoothed are.
  • warp threads in particular incorrectly controlled warp threads, come into contact with the entry belt, especially with the rear edge of the entry belt, it can then be avoided that these warp threads are heated and burned (separated or damaged).
  • the belt rapier weaving machine designated as a whole by 1 according to FIG. 1 only the entry belt 3 carrying the carrier rapier 2 and the entry belt 5 carrying the slave rapier 4 are shown.
  • Band 3 runs in a guide 6, band 4 in a guide 7.
  • the belts 3, 5 consist for example of carbon fiber reinforced plastic, e.g. epoxy resin coated with carbon fiber.
  • the parts 2 - 5 are located outside the shed 11, which extends over the weaving width 8 and is formed by the warp threads 9, 10 (cf. FIG. 2).
  • a few edge warp threads 12, 13 are indicated in FIG. 1 on both sides of the weaving width 8.
  • the warp threads 9, 10 run during the weaving operation in the direction of the arrows 14.
  • the compartment is formed by shafts, only one of which is indicated in FIG. 2 and designated by 15.
  • the warp threads 9 located in the upper compartment in FIG. 2 as well as a wrongly controlled warp thread 17 indicated by the dot-dash line are guided through its strands 16.
  • the reed 18 and a warp support 19 are also indicated by the tape gripper machine 1. The reed moves back and forth according to arrow 21.
  • the guide 7 of the entry belt 5 contains a plate 22 attached to the weaving machine frame and two upper guide strips 23, 24 arranged thereon.
  • 33.34 are pivotable according to arrows 35.36, e.g. Coating strips 37, 38 made of tetrafluoroethylene (brand TEFLON) are arranged. They are under the action of spiral springs 41, 42, which endeavor with their angled ends 43, 44 to press the strips 37, 38 against the entry band 5 according to the arrows 35, 36.
  • Coating strips 37, 38 made of tetrafluoroethylene (brand TEFLON) are arranged. They are under the action of spiral springs 41, 42, which endeavor with their angled ends 43, 44 to press the strips 37, 38 against the entry band 5 according to the arrows 35, 36.
  • the operating method of the belt gripper machine 1 proceeds as follows. In the position 2b, 3b, 4b, 5b of the grippers 2, 4 and entry belts 3, 5 shown in dash-dotted lines in FIG. 1, the parts are in the thread transfer position in which the weft thread 30 is currently being transferred from the gripper 2 to the gripper 4 becomes. The parts 2 - 5 then reach the positions shown in solid lines in FIG. 1 outside the weaving width 8 or compartment 11. There is a change of compartment. All or part of the shafts change their new position. At the same time, the reed moves from a rear position 18b, shown in broken lines in FIG. 2, into the front, drawn-out, stop position 18, in which the weft thread 30 is struck against the fabric 51.
  • the insertion members 3, 5 with the grippers 2, 4 are pushed back into the compartment 11.
  • a warp thread 17 shown in dash-dot lines in FIG. Due to the friction of several warp threads located in the same tube (slot) of reed 18, the shaft change caused by the associated shaft 15 does not immediately follow, it can happen that the slave gripper 4 or the associated entry belt 5 is already in the position shown in FIG initial retracted position 4a, 5a indicated by dashed lines.
  • the incorrectly controlled warp thread 17 is in the position 17a running beneath the belt 5, so that during the further movement of the parts 4, 5 running to the right in FIG the high position is hindered.
  • the band 5 is coated on its two edges 55, 56 by the two coating strips 37, 38 with Teflon abrasion 57, 58 indicated in FIG. 3 during its movement into the compartment 8, 11, the edges 55, 56 are particularly smoothed . This prevents the weft thread 17, which is under particular tension, from being heated, in particular at the kink 58, and thus being able to be burnt (separated). Rather, the operation can continue - even if a single, incorrect warp thread position of the thread 17 is accepted. When the entry belt 5 has left the compartment 11 with its gripper 4, the thread 17 can continue to participate in the further weaving operation.
  • the parts 22, 26, 27 forming the guide 7 contain bores 61, 62 into which coating pins 63, 64 made of TEFLON are inserted. These are under the action of compression springs 66 which can be adjusted by means of screws 65, of which only the upper one is shown in FIGS. 6, 7.
  • a tubular holder 72 is fastened to a frame part 71 of the weaving machine 1, into which a coating pin 63 made of TEFLON is inserted. Its lower end is provided with a notch 74, through which only the particularly critical edge 55 facing the reed in position 18b and the shanks 15 is coated.
  • the coating rod 63 is only under the force of its own weight.
  • the guide 6 for the feed belt 3 carrying the gripper 2 is designed in accordance with FIGS. 3-5.
  • circumferential surfaces 81, 82 of the entry belt 5 are coated by appropriate coating elements outside the shed 8, 11 and the belt is inserted into the compartment with a full coating during the weft insertion. If necessary, all surfaces 55, 56, 81, 82 of the circumferential cross section of the band 5 and / or 3 can also be coated.
  • the guide 7 contains a TEFLON on all guide surfaces standing coating layer.
  • the guide 7 can also consist entirely of TEFLON and itself form the coating element for the entry belt.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Looms (AREA)
EP85810172A 1985-04-19 1985-04-19 Procédé et dispositif pour l'exploitation de métiers à tisser à pinces Withdrawn EP0198145A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP85810172A EP0198145A1 (fr) 1985-04-19 1985-04-19 Procédé et dispositif pour l'exploitation de métiers à tisser à pinces

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP85810172A EP0198145A1 (fr) 1985-04-19 1985-04-19 Procédé et dispositif pour l'exploitation de métiers à tisser à pinces

Publications (1)

Publication Number Publication Date
EP0198145A1 true EP0198145A1 (fr) 1986-10-22

Family

ID=8194639

Family Applications (1)

Application Number Title Priority Date Filing Date
EP85810172A Withdrawn EP0198145A1 (fr) 1985-04-19 1985-04-19 Procédé et dispositif pour l'exploitation de métiers à tisser à pinces

Country Status (1)

Country Link
EP (1) EP0198145A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1394302A1 (fr) * 2002-08-30 2004-03-03 Promatech S.p.A. Améliorations de pinces-trames pour métiers à tisser et de moyens de guidage pour celles-ci

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1131383A (en) * 1966-05-25 1968-10-23 Dewas Raymond Improvements in or relating to looms
GB1206124A (en) * 1967-09-26 1970-09-23 Somet Soc Mec Tessile Improvements in or relating to looms
FR2404063A1 (fr) * 1977-09-27 1979-04-20 Dornier Gmbh Lindauer Machine a tisser dans laquelle l'introduction du fil de trame resulte du mouvement alterne d'entree et de sortie d'organes porteurs dans la foule

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1131383A (en) * 1966-05-25 1968-10-23 Dewas Raymond Improvements in or relating to looms
GB1206124A (en) * 1967-09-26 1970-09-23 Somet Soc Mec Tessile Improvements in or relating to looms
FR2404063A1 (fr) * 1977-09-27 1979-04-20 Dornier Gmbh Lindauer Machine a tisser dans laquelle l'introduction du fil de trame resulte du mouvement alterne d'entree et de sortie d'organes porteurs dans la foule

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1394302A1 (fr) * 2002-08-30 2004-03-03 Promatech S.p.A. Améliorations de pinces-trames pour métiers à tisser et de moyens de guidage pour celles-ci
US6973942B2 (en) 2002-08-30 2005-12-13 Promatech S.P.A. Weft carrying grippers for weaving looms and in guiding means thereof

Similar Documents

Publication Publication Date Title
CH646739A5 (de) Webverfahren fuer schuetzenlose webmaschinen und schussvorbereitungseinrichtung fuer die durchfuehrung des webverfahrens.
CH651862A5 (de) Fangfadenaufwickelvorrichtung bei einem schuetzenlosen webstuhl.
DE2851693A1 (de) Schuetzenlose webmaschine
DE69616215T2 (de) Verfahren zur Bearbeitung von Fadenresten
EP0039009B1 (fr) Procédé et dispositif pour l'insertion pneumatique d'un fil de trame dans l'inséreur de trame d'un métier à tisser multiple
EP0149969A1 (fr) Métier à tisser
EP0134377A1 (fr) Dispositif pour replier les bouts de fil de trame dans un métier à tisser
EP0198145A1 (fr) Procédé et dispositif pour l'exploitation de métiers à tisser à pinces
DE2502466A1 (de) Wechselschuss-papiermaschinensieb und webmaschine zur herstellung desselben
DE2312990B2 (de) Anwendung des Verfahrens des Schleifens von Geweben oder Gewirken und dabei benutztes Gerät
EP0155431A1 (fr) Procédé d'insertion de fil de trame pour un métier à tisser et métier à tisser pour réaliser ce procédé
DE3001069C2 (fr)
DE60220788T2 (de) Verbesserungen an Schussfadengreifern für Webmaschinen und an Webmaschinen mit Führungsmitteln dafür
EP0273350A2 (fr) Procédé et dispositif pour guider les fils de trame dans les métiers à tisser
DE869322C (de) Verfahren zum Weben auf Greiferwebmaschinen und Webmaschine zur Ausfuehrung des Verfahrens
DE102008036347A1 (de) Verfahren zum Einbringen sich partiell in der Gewebebreite zusätzlich erstreckender Schussfäden während des maschinellen Webprozesses
CH619749A5 (fr)
EP0310695A1 (fr) Navette de tissage
DE4131530C1 (en) Appts. for pick insertion for loom for continuous shed and fabric formation - includes loom shuttles having film arm for guiding pick between pick package and fabric formation zone
CH682570A5 (de) Greiferwebmaschine.
EP0340165B1 (fr) Métier à tisser avec dispositif de formation de lisière mécanique
EP0031853B1 (fr) Métier à tisser à chasses multiples
DE69612705T2 (de) Pneumatische Fadenliefervorrichtung an Strickmaschinen oder dergleichen
DD243304A1 (de) Vorrichtung zur schussfadenpositionierung an greiferwebmachinen
DE1760723A1 (de) Webmaschine mit Mehrschussmechanismus und Jacquardmaschine

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 19850422

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AT BE CH DE FR GB IT LI LU NL SE

RBV Designated contracting states (corrected)

Designated state(s): BE CH DE FR GB IT LI

17Q First examination report despatched

Effective date: 19871019

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION HAS BEEN WITHDRAWN

18W Application withdrawn

Withdrawal date: 19880816

RIN1 Information on inventor provided before grant (corrected)

Inventor name: KOEHLER, LOTHAR

Inventor name: EGLOFF, ANTON