EP0150057A2 - Procédé de fonctionnement d'un métier à tisser et dispositif pour exécuter ce procédé - Google Patents

Procédé de fonctionnement d'un métier à tisser et dispositif pour exécuter ce procédé Download PDF

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Publication number
EP0150057A2
EP0150057A2 EP85100491A EP85100491A EP0150057A2 EP 0150057 A2 EP0150057 A2 EP 0150057A2 EP 85100491 A EP85100491 A EP 85100491A EP 85100491 A EP85100491 A EP 85100491A EP 0150057 A2 EP0150057 A2 EP 0150057A2
Authority
EP
European Patent Office
Prior art keywords
weft
shed
entry
weft thread
thread
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
EP85100491A
Other languages
German (de)
English (en)
Other versions
EP0150057B1 (fr
EP0150057A3 (en
Inventor
Paul Gunnemann
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.)
Rueti Te Strake BV
Original Assignee
Rueti Te Strake BV
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=4182368&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0150057(A2) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Rueti Te Strake BV filed Critical Rueti Te Strake BV
Publication of EP0150057A2 publication Critical patent/EP0150057A2/fr
Publication of EP0150057A3 publication Critical patent/EP0150057A3/de
Application granted granted Critical
Publication of EP0150057B1 publication Critical patent/EP0150057B1/fr
Expired legal-status Critical Current

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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
    • D03D47/34—Handling the weft between bulk storage and weft-inserting means

Definitions

  • the invention relates to a method for operating a loom with fluid insertion of the weft threads into the shed, the weft thread being stretched during the stop movement of the reed by means of a fluid flow acting on the weft thread at the end of the shed.
  • the invention further relates to a device for performing the method.
  • the quality of a fabric depends to a large extent on the extent and the uniformity with which the weft threads are stretched after being inserted and kept stretched before and during the subsequent beating in the cloth.
  • this stretching effect is produced by a stretching nozzle, which is arranged on the arrival side of the weft thread and usually outside the fabric edge, in addition to the relay nozzles which distribute the weft threads and are arranged over the shed. It goes without saying that a more effective and more uniform stretching action and thereby a better cloth is obtained if the weft thread is surrounded over a relatively large length by the stretching air flow from the stretching nozzle.
  • the invention has for its object to provide a method of the type defined in the introduction, which produces an optimal stretching effect of the weft thread, but the length of the waste remains small.
  • This object is achieved according to the invention by the method features specified in the characterizing part of independent claim 1.
  • the independent claim 3 relates to a device for performing the method.
  • the subclaims relate to advantageous further developments.
  • the excess weft threads are inserted into the shed so that they protrude correspondingly far from the shed on the receiving side and are picked up by the stretching nozzle with this excess length. After the entry has been completed, the weft threads are withdrawn on the entry side by the amount of the excess length in the initial phase of the stop movement.
  • a drawer 1 can be rotated back and forth about an axis 2 in the direction of an arrow I.
  • the weft yarn 7 is fed from a supply spool (not shown) via a weft thread measuring device (also not shown), for example a weft storage device, via a thread clamp 8 to the main nozzle 4.
  • the thread clamp 8 closes each time a weft thread entry is finished and only opens again at the moment when the next entry is to begin.
  • the thread length already stored in the thread store for the next entry is then released by opening the thread clamp 8 for entry through the main nozzle 4.
  • a thread length is stored which is equal to the weft thread length required by the weaving width plus a certain excess length.
  • the drawing nozzle 9 is only shown schematically and not described, since it is known per se, for example from NL-PS 72 06 367.
  • a lever 11 is provided in the space 10 between the thread clamp 8 and the main nozzle 4, which lever can be rotated about an axis 12, which is supported in two cheeks 13, in a plane perpendicular to the entry line.
  • the cheeks 13 are attached to the head of the projecting part of the drawer 1.
  • the lever 11 moves between an ineffective position, which is determined by a stop 14, and an active position, which is determined by a stop 15.
  • a forearm 11 'of the two-armed lever 11 is provided with a roller 16 which can roll on a guide rail 17 on a lever 18.
  • the lever 18 is fastened on an axis 19 which runs parallel to the entry line and is rotatably mounted in a bushing 20.
  • the bushing 20 in turn is fastened to a stationary part 22 of the weaving machine via a carrier 21.
  • a lever 23 with follower roller 24 is also fastened, which is guided on a control disk 25 rotating in the direction of an arrow II.
  • the follower roller 24 is held on the control disk 25 by means of a compression spring 26 which presses on a protruding part 23 'of the lever 23.
  • the control disk 25 has two control sections 25a and 25b with different radii, which are connected to one another by straight transition sections. In the position shown in FIG.
  • This loop 28 is during the the drawn position B preceding the stop movement of the reed 3, during which movement the lever 11 was rotated from its ineffective, no loop-forming position at the stop 14 into its effective, loop-forming position at the stop 15.
  • the thread length contained in the loop 28 is intended to be used during the next entry of a weft thread.
  • the operation of the device is described below using a weaving cycle, the starting point being the reed stop position A shown in the drawing.
  • the most important processes in the weaving cycle relate to the angular position of the main shaft of the weaving machine, which makes one full revolution per weaving cycle.
  • the drawn Rietanschlaglage A corresponds to the 0 ° angle position.
  • the pulling action of the main nozzle 4 on the weft thread releases the loop 28 released by the lever 11 on its way to the stop 14 and promotes it in the direction of the shed.
  • the weft thread is thus inserted approximately between the angular positions 90 ° and 100 ° of the main shaft. With an angular position of approximately 180 °, the drawer 1 has reached its rest position. The reed 3 is then in position B. The main nozzle 4 is then still effective; it is only switched off when the angle is 230. In the meantime, the stretching nozzle 9 has already taken effect at approximately 200 so that it can pick up the weft end 7 "at the end of the entry and start stretching.
  • the stretching nozzle contains a weft thread length equal to the length of the loop 28.
  • the drawer 1 with the reed 3 is located meanwhile again on the way to the right to the drawn Rietanschlaglage A.
  • the control section 25a of the control disk 25 now again acts on the roller 24 of the lever 23, so that the lever 18 is raised and the lever 11 in the clockwise direction
  • the lever 11 pulls a loop 28 in the weft thread that is still in the shed and is caught at its end by the stretching nozzle 9.
  • the loop 28 is formed in the weft thread 7 ', it is withdrawn over a corresponding length from the shed until the moment, for example at 350 °, at which the weft thread is cut off by scissors 29.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Looms (AREA)
EP85100491A 1984-01-19 1985-01-18 Procédé de fonctionnement d'un métier à tisser et dispositif pour exécuter ce procédé Expired EP0150057B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH235/84 1984-01-19
CH235/84A CH662136A5 (de) 1984-01-19 1984-01-19 Verfahren zum betrieb einer webmaschine und vorrichtung zum durchfuehren des verfahrens.

Publications (3)

Publication Number Publication Date
EP0150057A2 true EP0150057A2 (fr) 1985-07-31
EP0150057A3 EP0150057A3 (en) 1985-08-21
EP0150057B1 EP0150057B1 (fr) 1988-12-21

Family

ID=4182368

Family Applications (1)

Application Number Title Priority Date Filing Date
EP85100491A Expired EP0150057B1 (fr) 1984-01-19 1985-01-18 Procédé de fonctionnement d'un métier à tisser et dispositif pour exécuter ce procédé

Country Status (4)

Country Link
US (1) US4601314A (fr)
EP (1) EP0150057B1 (fr)
CH (1) CH662136A5 (fr)
DE (2) DE3402393A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0268195A2 (fr) * 1986-11-20 1988-05-25 Klöcker-Entwicklungs-GmbH Procédé pour obtenir des petits déchets de fil de trame
EP0293557A2 (fr) * 1987-03-12 1988-12-07 Klöcker-Entwicklungs-GmbH Procédé pour tendre le fil de trame inséré dans les métiers à tisser sans navette

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0297040B1 (fr) * 1987-06-25 1991-06-26 GebràœDer Sulzer Aktiengesellschaft Procédé pour l'insertion de trame dans un métier pneumatique multicouleurs et métier pour l'exécution de ce procédé
JP2912665B2 (ja) * 1990-03-05 1999-06-28 津田駒工業株式会社 ジェットルームの１ピック緯入れ方法と、その制御装置

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1260351A (fr) * 1960-06-16 1961-05-05 Sulzer Ag Dispositif de tension de la matière de trame à insérer dans la foule
GB1085458A (en) * 1964-12-22 1967-10-04 Albert Ernest Moessinger Improvements in or relating to looms
CH474589A (fr) * 1965-02-15 1969-06-30 Moessinger Albert Procédé de tissage et métier pour sa mise en oeuvre
FR2153185A1 (en) * 1971-09-22 1973-05-04 Moessinger Sa Shuttleless weaving compensator - draws excess weft back into reserve
FR2198014A2 (en) * 1972-09-04 1974-03-29 Moessinger Sa Shuttleless weaving compensator - draws excess weft back into reserve
FR2316171A1 (fr) * 1975-07-04 1977-01-28 Sulzer Ag Dispositif de transmission d'une piece de matiere filamentaire d'un premier a un second guide d'une machine

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE459397C (de) * 1929-09-09 Johann Gabler Vorrichtung zum Regeln der Laenge des mittels Greifers eingetragenen Schussfadens fuer Webstuehle mit feststehenden Schussspulen
BE467199A (fr) * 1945-08-11
GB1058607A (en) * 1963-05-30 1967-02-15 Jose Llado Llado Improvements in weft clamping and positioning devices for shuttleless looms
CH502459A (de) * 1969-07-22 1971-01-31 Rueti Ag Maschf Einrichtung zur Beeinflussung eines Fadens
US3938561A (en) * 1971-04-10 1976-02-17 Walter Scheffel Device for drawing off weft thread
US3698442A (en) * 1971-06-18 1972-10-17 Enshu Seisaku Kk Weft controller usable for a weaving loom of weft propellent fluid jet type
US4054159A (en) * 1973-10-04 1977-10-18 Societe Alsacienne De Constructions Mecaniques De Mulhouse Picking method for a shuttleless weaving machine
US4473096A (en) * 1979-08-06 1984-09-25 Leesona Corporation Weft end reception system
JPS5926554A (ja) * 1982-08-04 1984-02-10 日産自動車株式会社 流体噴射式織機における緯糸引戻し装置

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1260351A (fr) * 1960-06-16 1961-05-05 Sulzer Ag Dispositif de tension de la matière de trame à insérer dans la foule
GB1085458A (en) * 1964-12-22 1967-10-04 Albert Ernest Moessinger Improvements in or relating to looms
CH474589A (fr) * 1965-02-15 1969-06-30 Moessinger Albert Procédé de tissage et métier pour sa mise en oeuvre
FR2153185A1 (en) * 1971-09-22 1973-05-04 Moessinger Sa Shuttleless weaving compensator - draws excess weft back into reserve
FR2198014A2 (en) * 1972-09-04 1974-03-29 Moessinger Sa Shuttleless weaving compensator - draws excess weft back into reserve
FR2316171A1 (fr) * 1975-07-04 1977-01-28 Sulzer Ag Dispositif de transmission d'une piece de matiere filamentaire d'un premier a un second guide d'une machine

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0268195A2 (fr) * 1986-11-20 1988-05-25 Klöcker-Entwicklungs-GmbH Procédé pour obtenir des petits déchets de fil de trame
EP0268195A3 (fr) * 1986-11-20 1990-02-21 Klöcker-Entwicklungs-GmbH Procédé pour obtenir des petits déchets de fil de trame
EP0293557A2 (fr) * 1987-03-12 1988-12-07 Klöcker-Entwicklungs-GmbH Procédé pour tendre le fil de trame inséré dans les métiers à tisser sans navette
EP0293557A3 (fr) * 1987-03-12 1990-03-07 Klöcker-Entwicklungs-GmbH Procédé pour tendre le fil de trame inséré dans les métiers à tisser sans navette

Also Published As

Publication number Publication date
EP0150057B1 (fr) 1988-12-21
EP0150057A3 (en) 1985-08-21
DE3566912D1 (en) 1989-01-26
DE3402393A1 (de) 1985-07-25
US4601314A (en) 1986-07-22
CH662136A5 (de) 1987-09-15
DE3402393C2 (fr) 1988-02-11

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