US3297057A - Device for grasping and guiding travelling ends of wefts - Google Patents

Device for grasping and guiding travelling ends of wefts Download PDF

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Publication number
US3297057A
US3297057A US370497A US37049764A US3297057A US 3297057 A US3297057 A US 3297057A US 370497 A US370497 A US 370497A US 37049764 A US37049764 A US 37049764A US 3297057 A US3297057 A US 3297057A
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US
United States
Prior art keywords
weft
yarns
shed
binding yarns
yarn
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
US370497A
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English (en)
Inventor
Mizuno Yukio
Tanaka Shigenori
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PRINCE JIDOSHA KOGYO KK
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PRINCE JIDOSHA KOGYO KK
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Publication of US3297057A publication Critical patent/US3297057A/en
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Expired - Lifetime legal-status Critical Current

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    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03J—AUXILIARY WEAVING APPARATUS; WEAVERS' TOOLS; SHUTTLES
    • D03J1/00—Auxiliary apparatus combined with or associated with looms
    • D03J1/06—Auxiliary apparatus combined with or associated with looms for treating fabric
    • D03J1/08—Auxiliary apparatus combined with or associated with looms for treating fabric for slitting fabric
    • 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
    • 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
    • D03D47/40—Forming selvedges
    • 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

Definitions

  • This invention relates in general to a shuttleless loom of fluid injection type and more particularly to a device for grasping and guiding a travelling end portion of a weft in such a loom.
  • a general object of the invention is to eliminate the disadvantages just described.
  • An object of the invention is to provide, in a shuttleless loom of fluid injection type, a new and improved device for grasping and guiding a travelling end portion of a weft having passed through a shed while maintaining the same in its tensioned state.
  • FIGURE 2 shows a fragmental plan view of the loom illustrated in FIGURE 1.
  • a device for grasping and guiding travelling weft end portions in a shuttleless loom of fluid injection type comprises a plurality of binding yarns disposed on one side of a warp array for movement in a predetermined direction to suecessively grasp surplus end portions of successive lengths of weft which have successively passed through a warp shed, in their tensioned state by beating operation.
  • the surplus weft portions thus grasped and the adjacent portions of the binding yarns are moved in the predetermined direction and twisted while they are cut away from the associated beaten lengths of weft by a cutter.
  • the surplus weft portions cut and twisted into the binding yarns are wound on a winding drum.
  • FIGURES l and 2 represent respectively a product region in which a woven product extends longitudinally in its tensioned state and a warp region in which an upper and a lower portion of parallel warp array extend in their tensioned state so as to form a shed therebetween in the conventional manner.
  • an injection nozzle 1 is disposed adjacent a weave front C of a woven sheet forming a boundary between the product and warp regions A and B respectively and between both regions with the longitudinal axis substantially perpendicular to the longitudinal axis of the warp array.
  • the injection nozzle 1 may be of any desired conventional construction and serves to inject both a length of weft w and a working fluid under pressure into the shed to thereby lay the length of weft onto the lower warp array portion transversely to the same. In this way, the length of the injected weft traverses the shed and therefore the warp array B until the free end portion or the surplus portion w will shortly project beyond that side of the shed or the warp array B remote away from the injection nozzles 1.
  • more than one of embracing binding yarns in this case three yarns a, b and c are, in tensioned state, disposed in spaced parallel relationship with respect to the warp array B in such a way as to intersect the surplus end portion w of the injected weft w.
  • alternate ones of the binding yarns such as the yarns a and c oppose the other binding yarns such as the middle yarn b to form a shed therebetween substantially identical with the shed formed between the upper and lower portions of warp array B.
  • the yarn array a, b, and c is let off from a supply roll (not shown) a rate somewhat higher than a rate at which the warp array B are let off from a warp beam (not shown).
  • a heald 2 is provided for forming the shed between the upper and lower portions of the warp array B and also includes an extension serving to form the shed between the binding yarns a, b and c.
  • a guiding member 3 is disposed on the side of product region A and suitably spaced away from the side of the woven sheet.
  • the guiding member 3 is provided with an opening 4 through which the collected yarns a, b and c are adapted to pass.
  • a rockable cutter 5 is disposed adjacent the side of the woven sheet and between the same and the guiding member 3 for the purpose as will be apparent hereinafter.
  • a U-shaped rotatable hook 6 rigidly secured to a hollow tubular shaft 7 at that end face opposing to the guiding member 3.
  • the hollow tubular shaft 7 is mounted in a bearing 8 for reciprocating movement with the longitudinal axis thereof substantially aligned with the path of the collected binding yarns and is arranged to be driven by having a grooved pulley 9 secured thereon and engaging an end less belt 10 driven by any suitable drive (not shown).
  • a taking up roller Ill and a winding drum 12 which may be one end portion respectively of the conventional taking up roller and cloth beam capable of being operatively coupled to the woven product A.
  • a reed 13 is operated to beat the length of weft in its straightened state.
  • the reed 13 includes an extension serving to engage the surplus end portion w of the injected weft w. Therefore, the reed 13 when operated serves to move the surplus weft portion w to a line substantially aligned with the weave front C. At the same time, the surplus weft portion w is embraced by the binding yarns a, b and c.
  • the hollow tubular shaft 7 and therefore the U-shaped hook 6 rigid the same is rotating to subject the surplus weft portion w and those portions of the binding yarns a, b and c having embraced the same to twisting. This ensures that the surplus weft portion is grasped by the binding yarns. Then another length of weft can be injected from the injection nozzle 1 into the sheds and the process as above described is repeated.
  • surplus end portions of individual lengths of weft as inserted into a shed formed between binding yarns are successively grasped at the base portion and the free end portion by selvage yarns and the binding yarns respectively, cut and thereafter guided to a predetermined position while maintaining the same firmly grasped by the binding yarns. Therefore the invention is advantageous in that any defect of the finished texture involving selvages due to partial looseness of inserted wefts can be not only effectively prevented from occurring but also the cut weft portions are prevented from scattering leading to the elimination of operational inconveniences and disadvantages. Also those portions of the surplus weft portions remaining uncut away from in the woven sheet can be substantially uniform in length because the surplus weft portions have been out while being maintained tensioned and grasped by the binding yarns.
  • a shuttleless loom having means for injecting successive lengths of weft yarn into a warp shed and causing them to pass from one side of the shed to the other under the control of a fluid under pressure, means for grasping and guiding the end of the length of moving weft yarn and tensioning it
  • the combination comprising a plurality of binding yarns along one side of the array of warp yarns, yarn manipulating means engaging said binding yarns and manipulating said binding yarns for successively grasping the ends of the lengths of weft yarns which have been driven through the shed, yarn moving means downstream of the shed engaging said binding yarns and moving them in the direction of the length of the fabric, and yarn twisting means between said yarn moving means and said shed and engaging said binding yarns and twisting at least the portion of the length of said binding yarns between said yarn twisting means and the shed which have grasped said weft yarns for insuring that the ends of the weft yarns are securely bound by the binding yarns and for maintaining tension on said weft yarns.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Looms (AREA)
  • Auxiliary Weaving Apparatuses, Weavers' Tools, And Shuttles (AREA)
US370497A 1963-06-01 1964-05-27 Device for grasping and guiding travelling ends of wefts Expired - Lifetime US3297057A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2891263 1963-06-01

Publications (1)

Publication Number Publication Date
US3297057A true US3297057A (en) 1967-01-10

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Family Applications (1)

Application Number Title Priority Date Filing Date
US370497A Expired - Lifetime US3297057A (en) 1963-06-01 1964-05-27 Device for grasping and guiding travelling ends of wefts

Country Status (3)

Country Link
US (1) US3297057A (de)
CH (1) CH426673A (de)
GB (1) GB1076521A (de)

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3410316A (en) * 1967-03-15 1968-11-12 Greenhalgh Mills Inc Weft detector for loom having a weft inserted by nozzle action
US3529637A (en) * 1968-11-01 1970-09-22 North American Rockwell Catch cord twister for shuttleless looms
US3563280A (en) * 1969-06-02 1971-02-16 North American Rockwell Method and apparatus for tucked-in selvage
US3698447A (en) * 1971-03-03 1972-10-17 Stevens & Co Inc J P Continuous fringe cutter for fabrics woven without weft locked selvages
US3731714A (en) * 1971-09-24 1973-05-08 Rockwell International Corp Weft yarn control device
US3824774A (en) * 1971-10-25 1974-07-23 Nissan Motor Method and apparatus for the fabrication of condenser yarns
DE2820251A1 (de) * 1977-05-26 1978-12-14 Nissan Motor Vorrichtung zum feststellen einer fehlfunktion beim abziehen von fanggarnen an einem schiffchenlosen webstuhl
DE2851693A1 (de) * 1977-12-01 1979-06-07 Nissan Motor Schuetzenlose webmaschine
US4404997A (en) * 1980-04-12 1983-09-20 Nissan Motor Co., Ltd. Waste binding yarn take-up device for shuttleless loom
US4497098A (en) * 1982-09-07 1985-02-05 Hitco Fill yarn removal apparatus
US4653546A (en) * 1986-03-17 1987-03-31 Milliken Research Corporation Weft yarn end control arrangement
US4691743A (en) * 1985-01-28 1987-09-08 Societe Alsacienne De Construction De Material Textile Method and device for removal of waste slivers in a weaving loom
US6058980A (en) * 1997-08-04 2000-05-09 Gividi-Italia S.P.A. Method for cutting a selvedge of a weft insertion side of a rapier loom
US6450211B1 (en) * 1999-03-18 2002-09-17 Acordis Industrial Fibers Gmbh Weaving process for a high-density fabric on a water-jet loom

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100250384B1 (ko) * 1997-11-13 2000-04-01 정원기 워터제트직기의 위사절단사 처리장치
CN103741348B (zh) * 2013-12-23 2015-07-22 杭州创兴织造设备科技有限公司 一种织布机废边组织引导装置及其使用方法
CN106192172A (zh) * 2016-08-31 2016-12-07 山东日发纺织机械有限公司 一种解决纬纱掉纬问题的装置

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL39476C (de) *
US2389809A (en) * 1942-06-11 1945-11-27 Sulzer Ag Method and device for cutting weft thread ends projecting from the fabric
US2668560A (en) * 1949-04-02 1954-02-09 Ceskoslovenske Textilni Zd Y Device for weaving of fabrics
US2906296A (en) * 1956-07-19 1959-09-29 Ancet Victor Marie Joseph Shuttleless weaving looms
CA625921A (en) * 1961-08-22 M. J. Ancet Victor Shuttleless looms
US3030788A (en) * 1959-04-28 1962-04-24 Singer Fidelity Inc Method and apparatus for yarn end control
FR1309945A (fr) * 1961-10-11 1962-11-23 Alsacienne Constr Meca Fausse lisière de tissu et procédé pour la réalisation d'une telle fausse lisière
US3171444A (en) * 1961-03-30 1965-03-02 Alsacienne Constr Meca Weft cutting device for weaving machinery

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL39476C (de) *
CA625921A (en) * 1961-08-22 M. J. Ancet Victor Shuttleless looms
US2389809A (en) * 1942-06-11 1945-11-27 Sulzer Ag Method and device for cutting weft thread ends projecting from the fabric
US2668560A (en) * 1949-04-02 1954-02-09 Ceskoslovenske Textilni Zd Y Device for weaving of fabrics
US2906296A (en) * 1956-07-19 1959-09-29 Ancet Victor Marie Joseph Shuttleless weaving looms
US3030788A (en) * 1959-04-28 1962-04-24 Singer Fidelity Inc Method and apparatus for yarn end control
US3171444A (en) * 1961-03-30 1965-03-02 Alsacienne Constr Meca Weft cutting device for weaving machinery
FR1309945A (fr) * 1961-10-11 1962-11-23 Alsacienne Constr Meca Fausse lisière de tissu et procédé pour la réalisation d'une telle fausse lisière

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3410316A (en) * 1967-03-15 1968-11-12 Greenhalgh Mills Inc Weft detector for loom having a weft inserted by nozzle action
US3529637A (en) * 1968-11-01 1970-09-22 North American Rockwell Catch cord twister for shuttleless looms
US3563280A (en) * 1969-06-02 1971-02-16 North American Rockwell Method and apparatus for tucked-in selvage
US3698447A (en) * 1971-03-03 1972-10-17 Stevens & Co Inc J P Continuous fringe cutter for fabrics woven without weft locked selvages
US3731714A (en) * 1971-09-24 1973-05-08 Rockwell International Corp Weft yarn control device
US3824774A (en) * 1971-10-25 1974-07-23 Nissan Motor Method and apparatus for the fabrication of condenser yarns
DE2820251A1 (de) * 1977-05-26 1978-12-14 Nissan Motor Vorrichtung zum feststellen einer fehlfunktion beim abziehen von fanggarnen an einem schiffchenlosen webstuhl
DE2851693A1 (de) * 1977-12-01 1979-06-07 Nissan Motor Schuetzenlose webmaschine
US4404997A (en) * 1980-04-12 1983-09-20 Nissan Motor Co., Ltd. Waste binding yarn take-up device for shuttleless loom
US4497098A (en) * 1982-09-07 1985-02-05 Hitco Fill yarn removal apparatus
US4691743A (en) * 1985-01-28 1987-09-08 Societe Alsacienne De Construction De Material Textile Method and device for removal of waste slivers in a weaving loom
US4653546A (en) * 1986-03-17 1987-03-31 Milliken Research Corporation Weft yarn end control arrangement
US6058980A (en) * 1997-08-04 2000-05-09 Gividi-Italia S.P.A. Method for cutting a selvedge of a weft insertion side of a rapier loom
US6450211B1 (en) * 1999-03-18 2002-09-17 Acordis Industrial Fibers Gmbh Weaving process for a high-density fabric on a water-jet loom

Also Published As

Publication number Publication date
GB1076521A (en) 1967-07-19
DE1535574A1 (de) 1971-06-03
CH426673A (de) 1966-12-15

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