EP0143119A1 - Dispositif coupe-fil pour métier à tisser, plus particulièrement pour les métiers à tisser à foule linéaire multiple - Google Patents

Dispositif coupe-fil pour métier à tisser, plus particulièrement pour les métiers à tisser à foule linéaire multiple Download PDF

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Publication number
EP0143119A1
EP0143119A1 EP83112063A EP83112063A EP0143119A1 EP 0143119 A1 EP0143119 A1 EP 0143119A1 EP 83112063 A EP83112063 A EP 83112063A EP 83112063 A EP83112063 A EP 83112063A EP 0143119 A1 EP0143119 A1 EP 0143119A1
Authority
EP
European Patent Office
Prior art keywords
cutting
weft thread
looms
scissors
blow pipe
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
EP83112063A
Other languages
German (de)
English (en)
Other versions
EP0143119B1 (fr
Inventor
Alois Steiner
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.)
Maschinenfabrik Sulzer Rueti AG
Maschinenfabrik Rueti AG
Original Assignee
Maschinenfabrik Sulzer Rueti AG
Maschinenfabrik Rueti 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 Maschinenfabrik Sulzer Rueti AG, Maschinenfabrik Rueti AG filed Critical Maschinenfabrik Sulzer Rueti AG
Priority to DE8383112063T priority Critical patent/DE3373504D1/de
Priority to EP83112063A priority patent/EP0143119B1/fr
Priority to US06/675,235 priority patent/US4576208A/en
Priority to CS849116A priority patent/CS251088B2/cs
Publication of EP0143119A1 publication Critical patent/EP0143119A1/fr
Application granted granted Critical
Publication of EP0143119B1 publication Critical patent/EP0143119B1/fr
Expired 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
    • D03D49/70—Devices for cutting weft threads
    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
    • D03D41/00—Looms not otherwise provided for, e.g. for weaving chenille yarn; Details peculiar to these looms
    • D03D41/005—Linear-shed multiphase looms

Definitions

  • the invention relates to a weft thread cutting device for weaving machines, in particular for row shed weaving machines, with at least one pair of scissors.
  • the series shed weaving machine requires a cutting device which contains a pair of scissors for each individual weft thread which carry out a cutting movement in sequence.
  • the invention is therefore based on the object of providing a weft thread cutting device of the type defined at the outset, which is fast-working, has only a low mass and is simple in design.
  • This object is achieved according to the invention by the features specified in the characterizing part of claim 1.
  • the subclaim relates to an advantageous embodiment.
  • a pair of scissors 1 according to FIG. 1 has a blow pipe 2, to which compressed air is continuously fed through a channel 3 in the wall of the cutting device.
  • the air enters the blow tube through a longitudinal slot 4 in the wall of the blow tube.
  • the blow pipe 2 guides a weft thread 5, which is sucked in by the blown air and fed via a (only partially drawn) guide channel 6 to a shed 7 of a (also only partially drawn) weaving rotor 8.
  • the weaving rotor rotates in the direction of arrow 9. During the rotation of the weaving rotor, the weft thread 5 is pulled over the edge 10 of the blowpipe 2.
  • the blow pipe 2 is moved forward by a lever 11 and is guided with its mouth 12 into a bore 13 of a fixedly arranged cutting piece 14.
  • the weft thread 5 is cut.
  • a remaining piece of thread 5 ' is carried by the weaving rotor and later separated.
  • the lever 11 moves the blow tube back into the starting position of FIG. 1.
  • a tip 16 of the weft thread 5 is held by the air flowing through the blow tube and is conveyed forward into the guide channel 6 and to the weaving rotor 8 at the beginning of the new entry.
  • the cutting piece does not have to encompass the end of the blowpipe during the cutting process. It is sufficient if the end 12 of the blow pipe moves over the cutting edge 15. Furthermore, an embodiment is possible, the cutting piece being movable with respect to the blow pipe, whereas the blow pipe is arranged stationary. An embodiment is also possible, wherein both the blow pipe and the cutting piece are movable with respect to one another.
  • the scissors are described here with reference to a row shed weaving machine, they can also be used for other types of weaving machines, for example for rapier projectile weaving machines, generally where a weft thread has to be cut without stopping it in its movement.
  • FIG. 4 shows a more practical embodiment of a pair of scissors.
  • a blow pipe 20 with a rectangular cross section is guided in a channel 21 with a rectangular cross section of a block 22.
  • block 22 there is a bore 23 for supplying blown air.
  • a channel 24 branches off from the bore 23 and opens at 24 ′ into a longitudinal slot 25 in the wall 26 of the channel 21.
  • the blow pipe has a cutting edge 20 'at its mouth.
  • a side wall 27 of the block 22 has a recess 28, which is delimited by a cutting piece 29 with a cutting edge 29 '.
  • One end 30 of the blowpipe is located between two pins 31 and 32 of a cutting lever 33.
  • a weft thread 34 to be inserted is sucked in by the blow air that flows into the blowpipe 20 from the channel 24 and fed to the weaving rotor through the blowpipe via an entry device. If the weft thread is to be cut, it has emerged through the cutout 28 and is pulled by the weaving rotor over the cutting edge 29 'of the blowpipe. At the same time, the blowpipe is moved forward by the cutting lever 34 and the weft thread is cut by the cutting edges 20 'and 29'.
  • the scissors described can be assembled with several others to form a single cutting device. There are as many scissors as there are weft threads to be inserted, e.g. four or six, depending on the design of the weaving rotor. They are stacked on top of one another and held together by a plate 35.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Looms (AREA)
EP83112063A 1983-12-01 1983-12-01 Dispositif coupe-fil pour métier à tisser, plus particulièrement pour les métiers à tisser à foule linéaire multiple Expired EP0143119B1 (fr)

Priority Applications (4)

Application Number Priority Date Filing Date Title
DE8383112063T DE3373504D1 (en) 1983-12-01 1983-12-01 Weft cutter for looms, especially for linear multiple shed looms
EP83112063A EP0143119B1 (fr) 1983-12-01 1983-12-01 Dispositif coupe-fil pour métier à tisser, plus particulièrement pour les métiers à tisser à foule linéaire multiple
US06/675,235 US4576208A (en) 1983-12-01 1984-11-27 Weft severing device for a weaving machine
CS849116A CS251088B2 (en) 1983-12-01 1984-11-28 Weft cutting device for weaving machines especially for row shed looms

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP83112063A EP0143119B1 (fr) 1983-12-01 1983-12-01 Dispositif coupe-fil pour métier à tisser, plus particulièrement pour les métiers à tisser à foule linéaire multiple

Publications (2)

Publication Number Publication Date
EP0143119A1 true EP0143119A1 (fr) 1985-06-05
EP0143119B1 EP0143119B1 (fr) 1987-09-09

Family

ID=8190844

Family Applications (1)

Application Number Title Priority Date Filing Date
EP83112063A Expired EP0143119B1 (fr) 1983-12-01 1983-12-01 Dispositif coupe-fil pour métier à tisser, plus particulièrement pour les métiers à tisser à foule linéaire multiple

Country Status (4)

Country Link
US (1) US4576208A (fr)
EP (1) EP0143119B1 (fr)
CS (1) CS251088B2 (fr)
DE (1) DE3373504D1 (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0624672A1 (fr) * 1993-05-13 1994-11-17 Sulzer RàœTi Ag Dispositif de distribution du fil de trame pour métier à tisser multiphasé à foule linéaire
EP0624673A1 (fr) * 1993-05-13 1994-11-17 Sulzer RàœTi Ag Dispositif de distribution du fil de trame pour métier à tisser multiphasé à foule linéaire et métier avec un tel dispositif de distribution
EP0625601A1 (fr) * 1993-05-21 1994-11-23 Sulzer RàœTi Ag Dispositif de coupe pour fils de trame et métier à tisser avec un tel dispositif
WO1996038612A1 (fr) * 1995-06-02 1996-12-05 SULZER RüTI AG Dispositif de repartition du fil de trame pour metier a tisser a ouverture des fils en serie
EP0919654A1 (fr) * 1997-11-28 1999-06-02 Sulzer Rüti Ag Procédé et dispositif pour l'insertion de trame dans les métiers à tisser à ouverture des fils en série

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4787424A (en) * 1986-10-15 1988-11-29 Klimovskoje Spetsialnoje Knostruktorskoje Bjuro Po Projektirovaniju Tkatskogo Oborudovanija Method of inserting loops of continuous weft thread in a needle loom
US4957144A (en) * 1987-12-28 1990-09-18 Nissan Motor Co., Ltd. Tack-in system of shuttleless loom

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA656605A (en) * 1963-01-29 H. Cerny Eric Method and apparatus for distributing a yarn
FR1468156A (fr) * 1966-02-14 1967-02-03 Embouchure de coupe et d'aspiration de fils de trame pour métiers à tisser sans navette
FR2033986A5 (fr) * 1969-02-06 1970-12-04 Leesona Corp
FR2191544A5 (en) * 1972-06-26 1974-02-01 Rhone Poulenc Textile Yarn cutting - by blade and sliding block which creates partial blockage in yarn path
GB1478856A (en) * 1975-02-19 1977-07-06 Ayrton & Co Ltd W Zarn cutting device
GB2068422A (en) * 1980-02-01 1981-08-12 Nat Res Dev Weft patterning

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1054743A (fr) * 1963-02-06
FR1419036A (fr) * 1964-10-13 1965-11-26 Prive Des Inv S Modernes O F P Perfectionnements aux dispositifs de retenue et de coupe des fils de trame sur les métiers à tisser à fausse navette à duites coupées
CH464106A (de) * 1967-10-13 1968-10-15 Fischer Ag Georg Einrichtung zur Steuerung einer Schussgarn-Schneidevorrichtung einer Webmaschine
US3487436A (en) * 1968-03-18 1969-12-30 Vladimir Svaty Weft thread cutting arrangement
US4134434A (en) * 1976-03-11 1979-01-16 Vyzkumny A Vyvojovy Ustav Zavodu Vseobecneho Strojirenstvi Weft cutting device in looms with mechanisms for multi weft weaving
JPS5338755A (en) * 1976-09-17 1978-04-10 Atsushi Kitamura Loom without shuttle equipped with selvage cutting device
US4275773A (en) * 1978-10-12 1981-06-30 Nissan Motor Company, Limited Weft cutting device in shuttleless loom
BE885714A (nl) * 1980-10-15 1981-04-15 Picanol Nv Inslaginbrenginrichting voor luchtweefgetouwen
JPS58104247A (ja) * 1981-12-11 1983-06-21 株式会社豊田自動織機製作所 流体噴射式織機における不良緯糸処理方法

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA656605A (en) * 1963-01-29 H. Cerny Eric Method and apparatus for distributing a yarn
FR1468156A (fr) * 1966-02-14 1967-02-03 Embouchure de coupe et d'aspiration de fils de trame pour métiers à tisser sans navette
FR2033986A5 (fr) * 1969-02-06 1970-12-04 Leesona Corp
FR2191544A5 (en) * 1972-06-26 1974-02-01 Rhone Poulenc Textile Yarn cutting - by blade and sliding block which creates partial blockage in yarn path
GB1478856A (en) * 1975-02-19 1977-07-06 Ayrton & Co Ltd W Zarn cutting device
GB2068422A (en) * 1980-02-01 1981-08-12 Nat Res Dev Weft patterning

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0624672A1 (fr) * 1993-05-13 1994-11-17 Sulzer RàœTi Ag Dispositif de distribution du fil de trame pour métier à tisser multiphasé à foule linéaire
EP0624673A1 (fr) * 1993-05-13 1994-11-17 Sulzer RàœTi Ag Dispositif de distribution du fil de trame pour métier à tisser multiphasé à foule linéaire et métier avec un tel dispositif de distribution
US5439037A (en) * 1993-05-13 1995-08-08 Sulzer Rueti Ag Weft thread distribution device for a series shed loom
EP0625601A1 (fr) * 1993-05-21 1994-11-23 Sulzer RàœTi Ag Dispositif de coupe pour fils de trame et métier à tisser avec un tel dispositif
US5469896A (en) * 1993-05-21 1995-11-28 Sulzer Rueti Ag Rotatable cutting device for weft threads
WO1996038612A1 (fr) * 1995-06-02 1996-12-05 SULZER RüTI AG Dispositif de repartition du fil de trame pour metier a tisser a ouverture des fils en serie
EP0919654A1 (fr) * 1997-11-28 1999-06-02 Sulzer Rüti Ag Procédé et dispositif pour l'insertion de trame dans les métiers à tisser à ouverture des fils en série
US6009915A (en) * 1997-11-28 2000-01-04 Sulzer Rueti Ag Method and distribution apparatus for pneumatic weft insertion in a series shed loom

Also Published As

Publication number Publication date
DE3373504D1 (en) 1987-10-15
US4576208A (en) 1986-03-18
CS251088B2 (en) 1987-06-11
EP0143119B1 (fr) 1987-09-09

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