EP0199880A1 - Dispositif d'insertion de trame pour métier à tisser, plus particulièrement un métier à tisser à navette à griffe - Google Patents

Dispositif d'insertion de trame pour métier à tisser, plus particulièrement un métier à tisser à navette à griffe Download PDF

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Publication number
EP0199880A1
EP0199880A1 EP85810200A EP85810200A EP0199880A1 EP 0199880 A1 EP0199880 A1 EP 0199880A1 EP 85810200 A EP85810200 A EP 85810200A EP 85810200 A EP85810200 A EP 85810200A EP 0199880 A1 EP0199880 A1 EP 0199880A1
Authority
EP
European Patent Office
Prior art keywords
guide
teeth
weft insertion
insertion member
weft
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Withdrawn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
EP85810200A
Other languages
German (de)
English (en)
Inventor
Peter Riesen
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 EP85810200A priority Critical patent/EP0199880A1/fr
Priority to US06/846,959 priority patent/US4653545A/en
Priority to SU864027388A priority patent/SU1449016A3/ru
Publication of EP0199880A1 publication Critical patent/EP0199880A1/fr
Withdrawn legal-status Critical Current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
    • D03D47/27—Drive or guide mechanisms for weft inserting
    • D03D47/277—Guide mechanisms
    • 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
    • D03D49/60—Construction or operation of slay

Definitions

  • the invention relates to a weft insertion device of a weaving machine, in particular a projectile weaving machine, with guide teeth arranged one behind the other, forming a weft path for the insertion member, consisting of supporting teeth and guide teeth with a plurality of guide surfaces.
  • the entry organ can be, for example, a rod or a projectile.
  • the guide teeth of a known device for projectiles enclose the weft insertion element from several sides and have an opening, which faces the reed, for releasing the weft thread before the stop on the fabric edge by means of the reed.
  • the guide teeth arranged over the weaving width of a weaving machine can all be of the same design, or as alternately arranged guide supports and guide hooks which guide the weft insertion element from several sides.
  • Such a guide device is described for example in German Patent No. 1 801 044.
  • the projectiles are here during their flight through the shed by two lower inclined guide surfaces and one guided upper horizontal guide surface.
  • the oblique arrangement of the lower guide surfaces results in support forces that are significantly higher than the weight of the projectile.
  • the sum of these forces and in a first approximation also the sum of the frictional forces is approximately 40% higher than when the weft insertion member is supported on a surface normal to the direction of the weight. If the sley vibrates around its pivot point, the inclined guide surfaces cause the weft insertion member or projectile to be thrown from one lower guide surface to the other and back again, whereby it can also strike the upper horizontal guide.
  • Another guide device which is described in CH-PS 439 159, has closed guide teeth with a guide surface lying transverse to the weight of the projectile.
  • the reaction forces from the guide teeth to the projectile are smaller here, which also results in lower frictional forces between the projectile and the guide device.
  • It has been found to be a disadvantage of this guiding device that when it is immersed in the shed, the guiding teeth penetrating the lower warp plane with their opening ahead, individual warp threads can get inside a guiding tooth, whereby they are damaged or between Projectile and guide tooth can be severed. This danger exists particularly in the area of the selvedge, where the warp threads in some fabrics are not parallel to the guide teeth due to the protrusion.
  • the advantage of the invention is, on the one hand, a reduction in the frictional forces between the weft insertion member and the guide device and, on the other hand, a reduction in the risk of warp threads being caught inside a guide tooth.
  • the advantages allow weaving operations with less lubricant supply in the weft channel and with fewer interruptions in operation due to warp thread damage.
  • the game for the weft insertion member between the guide parts can also advantageously be chosen to be substantially larger than in known guide devices. If the weft insertion member is guided exactly parallel to the weft channel before entry into it, with the exception of the wing there is no contact between the guide surfaces and the weft insertion member.
  • Fig. 1 the sley 1 of a weaving machine consisting of the reed 2, the shop profile 3 and part of a shop lever 4 is shown.
  • the loading levers are mounted on an oscillating shaft, not shown.
  • the guide teeth 15 are fastened one behind the other at regular intervals on the shop profile 3. They form the guide device for the weft insertion element 6, with which the weft thread 7 is inserted into the shed formed by the warp planes 8 and 9. After the weft insertion, the guide teeth emerge from the shed at the bottom right, the weft thread 7 passing through the funnel shaped opening 10 of the guide teeth emerges relatively to the left. It is then struck against the fabric edge 11 in the dash-dotted position of the sley in FIG. 1.
  • the supporting tooth 21 and the guide tooth 22 are fastened in holding blocks 33 in a larger number over the entire weaving width.
  • the supporting tooth 21 has a horizontal guide surface 21a for the weft insertion member 6.
  • at least one of the inclined surfaces 21b and 22b serves as a left-hand lateral guide for the weft insertion member, namely that which is closer to the weft insertion member 6.
  • the upper horizontal guide surface 22a should not be touched by the weft insertion member at all during normal weaving.
  • the area 22c on the leading tooth serves to limit the play area of the weft insertion member to the right.
  • 2b shows essentially the same arrangement as in FIG.
  • FIG. 2d shows an embodiment in which there is a lateral guide surface 27b on the supporting tooth 27 on the exit side 10 for the weft thread.
  • weft insertion members with three flat lateral surfaces each are used, while devices with further developed weft insertion members are shown in FIGS. 2e and 2f.
  • the guide surfaces 29b and 30c acting on the sides of the cylindrically shaped weft insertion member are also cylindrical surfaces. If the weft insertion member has a rectangular cross section, as shown in FIG. 2f, the supporting tooth 31 and the guide tooth 32 advantageously have exemptions 31c and 32b.
  • 3a-3c show sectional representations of the device, as marked in FIG. 2a, in sectional planes parallel to the firing direction.
  • 3a shows the projections of the lateral guide surfaces 21b and 22b of FIG. 2a in the region of the pointed ends of the supporting tooth and the guide tooth.
  • the supporting tooth 21 'and the guide tooth 22' are shown with thickenings in this area. These thickenings have the effect that when the guide teeth are immersed in the shed, the lower warp plane is better divided, which further reduces the risk of hooking in with inclined warp threads.
  • 3c shows an embodiment in which the guide hooks are made thinner than the guide supports. This embodiment is useful if the guide hook has no carrying function as shown in Fig. 2b.
  • FIG. 4 again shows an arrangement according to FIG. 2a in a perspective view.
  • the entry organ can be recognized here as a projectile.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Looms (AREA)
EP85810200A 1985-05-03 1985-05-03 Dispositif d'insertion de trame pour métier à tisser, plus particulièrement un métier à tisser à navette à griffe Withdrawn EP0199880A1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
EP85810200A EP0199880A1 (fr) 1985-05-03 1985-05-03 Dispositif d'insertion de trame pour métier à tisser, plus particulièrement un métier à tisser à navette à griffe
US06/846,959 US4653545A (en) 1985-05-03 1986-04-01 Projectile guide for a weaving machine
SU864027388A SU1449016A3 (ru) 1985-05-03 1986-04-29 Приспособление дл прокладывани уточной нити на ткацком станке с зажимными челноками

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP85810200A EP0199880A1 (fr) 1985-05-03 1985-05-03 Dispositif d'insertion de trame pour métier à tisser, plus particulièrement un métier à tisser à navette à griffe

Publications (1)

Publication Number Publication Date
EP0199880A1 true EP0199880A1 (fr) 1986-11-05

Family

ID=8194641

Family Applications (1)

Application Number Title Priority Date Filing Date
EP85810200A Withdrawn EP0199880A1 (fr) 1985-05-03 1985-05-03 Dispositif d'insertion de trame pour métier à tisser, plus particulièrement un métier à tisser à navette à griffe

Country Status (3)

Country Link
US (1) US4653545A (fr)
EP (1) EP0199880A1 (fr)
SU (1) SU1449016A3 (fr)

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0402285A1 (fr) * 1989-06-09 1990-12-12 S.A. Saurer Diederichs Dispositif de support et de guidage pour organes d'insertion mécanique de la trame, dans une machine à tisser sans navette
US5183084A (en) * 1989-07-06 1993-02-02 Picanol N.V., Naamloze Vennootschap Rapier guide with two series of guide elements
EP0709505A1 (fr) * 1994-10-27 1996-05-01 SOMET SOCIETA' MECCANICA TESSILE S.p.A. Voie de guidage pour les bandes à griffes dans les métiers à tisser
EP0726342A1 (fr) * 1995-02-07 1996-08-14 Picanol N.V. Métier à tisser à griffes avec des moyens de guidage
US5615714A (en) * 1994-05-27 1997-04-01 Nuovo Pignone S.P.A. Guide system for the gripper insertion tape in a shuttleless loom
WO2000023643A1 (fr) * 1998-10-16 2000-04-27 Picanol N.V. Element de guidage pour guider une bande a lance a l'interieur d'une foule de tissage d'une machine a tisser a lances
WO2005031054A1 (fr) * 2003-09-23 2005-04-07 Picanol N.V. Element de guidage destine a une bande de pince
CN101035941B (zh) * 2004-10-05 2011-10-05 必佳乐有限公司 用于织机夹纱器输送件的导向元件
CN101035940B (zh) * 2004-10-05 2012-01-04 必佳乐有限公司 用于织机夹纱器输送件的导向元件
CN101035942B (zh) * 2004-10-05 2012-03-21 必佳乐有限公司 用于织机的夹纱器输送件

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0446561B1 (fr) * 1990-03-13 1997-09-10 Sulzer RàœTi Ag Métier à tisser à pinces avec bandes d'insertion et éléments d'écartement pour les pinces

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR756154A (fr) * 1932-06-02 1933-12-06 Tefag Textil Finanz Ag Procédé et dispositifs pour le tissage
US2675027A (en) * 1953-03-30 1954-04-13 Crompton & Knowles Loom Works Shuttle guide
FR1227684A (fr) * 1958-06-28 1960-08-22 Sulzer Ag Fabrication d'éléments de guidage des organes trameurs d'un métier
CH360953A (de) * 1957-11-16 1962-03-15 Sulzer Ag Webmaschine mit gradlinig bewegten Organen zum Eintragen von Schussfäden ins Webfach
CH374039A (de) * 1959-05-08 1963-12-15 Sulzer Ag Verfahren und Vorrichtung zur Führung von Webschützen im Webfach
DE1801044A1 (de) * 1967-12-08 1969-07-03 Sulzer Ag Fuehrungseinrichtung fuer das Schussfadeneintragsorgan einer Webmaschine
FR2355107A1 (fr) * 1976-06-17 1978-01-13 Sulzer Ag Element de guidage de l'organe d'insertion de la trame d'une machine a tisser

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2699185A (en) * 1953-04-01 1955-01-11 Crompton & Knowles Loom Works Reed and shuttle guide for gripper looms
US3075560A (en) * 1958-06-28 1963-01-29 Sulzer Ag Guide for the weft thread inserting means in a loom for weaving and method of makingsame
US3556163A (en) * 1968-12-06 1971-01-19 Sulzer Ag Guide for weft-picking means in a loom
US4593724A (en) * 1985-06-04 1986-06-10 Sulzer Brothers Limited Guide for a weft-picking projectile in a weaving machine

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR756154A (fr) * 1932-06-02 1933-12-06 Tefag Textil Finanz Ag Procédé et dispositifs pour le tissage
US2675027A (en) * 1953-03-30 1954-04-13 Crompton & Knowles Loom Works Shuttle guide
CH360953A (de) * 1957-11-16 1962-03-15 Sulzer Ag Webmaschine mit gradlinig bewegten Organen zum Eintragen von Schussfäden ins Webfach
FR1227684A (fr) * 1958-06-28 1960-08-22 Sulzer Ag Fabrication d'éléments de guidage des organes trameurs d'un métier
CH374039A (de) * 1959-05-08 1963-12-15 Sulzer Ag Verfahren und Vorrichtung zur Führung von Webschützen im Webfach
DE1801044A1 (de) * 1967-12-08 1969-07-03 Sulzer Ag Fuehrungseinrichtung fuer das Schussfadeneintragsorgan einer Webmaschine
FR2355107A1 (fr) * 1976-06-17 1978-01-13 Sulzer Ag Element de guidage de l'organe d'insertion de la trame d'une machine a tisser

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2648161A1 (fr) * 1989-06-09 1990-12-14 Saurer Diederichs Sa Dispositif de support et de guidage pour organes d'insertion mecanique de la trame, dans une machine a tisser sans navette
EP0402285A1 (fr) * 1989-06-09 1990-12-12 S.A. Saurer Diederichs Dispositif de support et de guidage pour organes d'insertion mécanique de la trame, dans une machine à tisser sans navette
US5183084A (en) * 1989-07-06 1993-02-02 Picanol N.V., Naamloze Vennootschap Rapier guide with two series of guide elements
US5615714A (en) * 1994-05-27 1997-04-01 Nuovo Pignone S.P.A. Guide system for the gripper insertion tape in a shuttleless loom
EP0709505A1 (fr) * 1994-10-27 1996-05-01 SOMET SOCIETA' MECCANICA TESSILE S.p.A. Voie de guidage pour les bandes à griffes dans les métiers à tisser
BE1009098A3 (nl) * 1995-02-07 1996-11-05 Picanol Nv Grijperweefmachine met geleidingsmiddelen.
EP0726342A1 (fr) * 1995-02-07 1996-08-14 Picanol N.V. Métier à tisser à griffes avec des moyens de guidage
EP0898000A2 (fr) * 1995-02-07 1999-02-24 Picanol N.V. Métier à tisser à griffes avec des moyens de guidage pour guider un ruban à griffes et/ou une griffe
EP0898000A3 (fr) * 1995-02-07 2000-02-23 Picanol N.V. Métier à tisser à griffes avec des moyens de guidage pour guider un ruban à griffes et/ou une griffe
WO2000023643A1 (fr) * 1998-10-16 2000-04-27 Picanol N.V. Element de guidage pour guider une bande a lance a l'interieur d'une foule de tissage d'une machine a tisser a lances
BE1012233A3 (nl) * 1998-10-16 2000-07-04 Picanol Nv Grijperweefmachine met geleidingmiddelen voor een grijperband.
WO2005031054A1 (fr) * 2003-09-23 2005-04-07 Picanol N.V. Element de guidage destine a une bande de pince
CN101035941B (zh) * 2004-10-05 2011-10-05 必佳乐有限公司 用于织机夹纱器输送件的导向元件
CN101035940B (zh) * 2004-10-05 2012-01-04 必佳乐有限公司 用于织机夹纱器输送件的导向元件
CN101035942B (zh) * 2004-10-05 2012-03-21 必佳乐有限公司 用于织机的夹纱器输送件

Also Published As

Publication number Publication date
US4653545A (en) 1987-03-31
SU1449016A3 (ru) 1988-12-30

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