US3596683A - Weft yarn measuring and detaining device for shuttleless loom - Google Patents

Weft yarn measuring and detaining device for shuttleless loom Download PDF

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Publication number
US3596683A
US3596683A US858965A US3596683DA US3596683A US 3596683 A US3596683 A US 3596683A US 858965 A US858965 A US 858965A US 3596683D A US3596683D A US 3596683DA US 3596683 A US3596683 A US 3596683A
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United States
Prior art keywords
belt
detainer
conveying
roller
held
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
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US858965A
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English (en)
Inventor
Terumitu Dendo
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.)
Nissan Motor Co Ltd
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Nissan Motor Co Ltd
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Filing date
Publication date
Priority claimed from JP1968082388U external-priority patent/JPS4720296Y1/ja
Application filed by Nissan Motor Co Ltd filed Critical Nissan Motor Co Ltd
Application granted granted Critical
Publication of US3596683A publication Critical patent/US3596683A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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    • 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

Definitions

  • This invention relates to a fluid jet shuttleless loom and more particularly to a device for continuously measuring unit lengths of weft yarn and then detaining the unit lengths in the angular space formed by two conveying belt surfaces facing each other.
  • the weft yarn is fed and measured from ,the supply package onto a moving conveyor belt from between the belt and a grip securing weft feed roller.
  • the linear velocity of the belt is adjusted to conform with the intermittent projections by the fluid jet so that one unit length of weft yarn is measured and fed onto the conveyor belt.
  • the measured yarn lays on the belt unprotected and, since wide belts cannot be used for practical reasons, even slight air movements often cause the yarn to fall ofi the rather narrow commonly used belt or to become entangled, resulting in interruptions of operation.
  • the object of this invention is therefore to eliminate such drawbacks as dislocation and entanglement of weft yarn as well as fluffy yarn winding around the weft feed roller on a fluid jet shuttleless loom, as has heretofore been experienced.
  • the aforesaid object is accomplished by a device which is so constructed as to measure, detain, protect and guide unit lengths of weft yarn ensuring accurate length measurements and uninterrupted operations.
  • FIG. 1 is a perspective view of a fluid jet shuttleless loom with an improvement according to the present invention incorporated;
  • FIGS. 2 through 5 are schematic views of different modifications of the improvement of FIG. 1.
  • FIG. 1 shows in perspective one preferred embodiment of the present invention as applied to a fluid jet shuttleless loom.
  • the device indicated generally at comprises a conveying detainer belt 12 driven by a drive roller 14.
  • the angular velocity of the belt 12 is adjustable to conform with the intermittent projections required by the production rate.
  • the belt 12 is kept in position by an idler 16.
  • a protecting guide belt 18 is kept in such a position by a weft feed roller 20 and an idler 22 that a common tangential contact is established in the drive end for detainer belt to friction engage with the drive guide belt 18.
  • the surfaces of the belts l2 and 18 facing each other diverge from the common tangential contact line 24, forming an angular space 26 in which a unit length of weft yarn 28 from supply package 30 is detained.
  • Arrows (not identified by numerals) indicate the direction of movements of the drive wheel and the belts.
  • the weft feed roller 20 may be, if preferred, mounted on a lever 44 urged by spring 48.
  • the angular space 26 between the two belts is adjustable by changing the position of the idler 22 as illustrated in FIGS. 1 and 5 showing idler 22 as mounted in the slot 50 of a support 52.
  • Indicated at 40 and 42 are a fluid jet nozzle and a shed of warp yarn array, respectively.
  • FIG. 2 is shown the basic belt and roller arrangement 10a in accordance with the invention, the reference numerals being in correspondence with those in FIG. 1.
  • additional rollers 32 and 32' may be provided downstream of the rollers 14 and 20, respectively, to assist in holding the belts l2 and 18in position, as illustrated in FIG. 3.
  • This modified form of the device 1017 may be further provided with a pressure roller 34 to avoid slippage between the belt 12 and drive roller 14.
  • a further additional roller 36 there may be provided a further additional roller 36,
  • the additional rollers 32, 32' and 36 are mounted in a substantially triangular position in such a manner that the upper additional roller presses the belt 18 against the belt 12, establishing a common contact area 38. It will be appreciated that such arrangement of the rollers 32, 32' and 36 is advantageous not only to keep the belt l8 taut but to correctly guide the yarn with the increased contact area 38.
  • a further modified form of the device according to the invention as shown by 10d in FIG. 5 includes a lever 44' holding in position a bracket 46 onto which rollers 20 and 32' are mounted to press the protecting guide belt 18 against the conveying detainer belt 12 for more positive frictional effect in the common contact area 38 through the action of a spring 48.
  • the present invention provides a device for measuring continuously and detaining weft yarn under protection in the angular space formed by belts l2 and 18 thus substantially improving a fluid jet shuttleless loom.
  • a device for continuously measuring and detaining the weft yarn to be intermittently projected into the shed of the warp yarn array comprising a conveying detainer belt driven at an adjustable speed and a protecting guide belt positioned in a face-to-face angular relationship with said detainer belt and-having its drive end portion in tangential friction driving contact with said detainer belt for drawing and measuring a unit length of weft yarn per time unit from a yarn supply package, the facing surfaces of said detainer belt and said guide belt diverging from said drive end portion to form an angular space therebetween whereby the weft yarn fed from between the two belts through said drive end portion is conveyed and detained on said detainer belt guided and protected by said protecting guide belt.
  • a device wherein said conveying detainer belt is held in position by a drive roller and a weft feed roller and said protecting guide belt being held by a pair of spaced apart idlers in tangential friction driving contact with said conveying detainer belt in said drive end.
  • a device wherein said conveying detainer belt is further held in position by at least one additional roller.
  • a device wherein said conveying detainer belt is held in position at said drive end portion by two additional rollers for increasing said friction driving contact to cover a substantial area between said conveying detainer belt and said protecting guide belt.
  • a device wherein said conveying detainer belt is held in position at said drive end portion by two additional rollers and said protecting guide belt is held in position by one additional roller pressing said protecting guide belt against said conveying detainer belt between said auxiliary idlers of said conveying detainer belt over a substantial area.
  • a device wherein at least one pressure roller is provided to avoid slippage between said belts.
  • a device wherein said roller is mounted on a spring urged lever whereby pressure applied to said protecting guide belt is adjusted.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Looms (AREA)
US858965A 1968-09-21 1969-09-18 Weft yarn measuring and detaining device for shuttleless loom Expired - Lifetime US3596683A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP6838368 1968-09-21
JP1968082388U JPS4720296Y1 (enrdf_load_stackoverflow) 1968-09-21 1968-09-21

Publications (1)

Publication Number Publication Date
US3596683A true US3596683A (en) 1971-08-03

Family

ID=26409613

Family Applications (1)

Application Number Title Priority Date Filing Date
US858965A Expired - Lifetime US3596683A (en) 1968-09-21 1969-09-18 Weft yarn measuring and detaining device for shuttleless loom

Country Status (5)

Country Link
US (1) US3596683A (enrdf_load_stackoverflow)
BE (1) BE739122A (enrdf_load_stackoverflow)
DE (1) DE1947591C3 (enrdf_load_stackoverflow)
FR (1) FR2018586A1 (enrdf_load_stackoverflow)
GB (1) GB1259033A (enrdf_load_stackoverflow)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3722551A (en) * 1971-05-10 1973-03-27 Nissan Motor Method and apparatus for preparing weft yarn in a shuttleless loom
US3799212A (en) * 1971-07-14 1974-03-26 Zbrojovka Vsetin Np Yarn feeding device for textile machines
US3967654A (en) * 1973-11-27 1976-07-06 Jakob Muller, Forschungs-Und Finanz Ag Yarn feed mechanism for a weaving machine
US4371009A (en) * 1980-03-28 1983-02-01 Sulzer Brothers Limited Weft yarn accumulator
CN103710823A (zh) * 2013-12-25 2014-04-09 青岛铠硕纺机有限公司 一种塑料编织机用皮带喂入式扁丝测长装置
CN104195730A (zh) * 2014-08-29 2014-12-10 青岛天一集团红旗纺织机械有限公司 一种喷气织机用夹纱器
US20150203999A1 (en) * 2012-07-11 2015-07-23 Lindauer Dornier Gmbh Device for the Intermediate Storage of Band-Like Weft Material for a Weaving Machine and Weaving Machine Having Such a Device
US20240200241A1 (en) * 2021-04-19 2024-06-20 Lindauer Dornier Gesellschaft Mit Beschraenkter Haftung Device for feeding weft threads to a gripper head of a loom

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3131729A (en) * 1959-12-04 1964-05-05 Sulzer Ag Weft thread supply system for looms for weaving
FR1423405A (fr) * 1965-02-02 1966-01-03 Elitex Zavody Textilniho Dispositif d'amenée de fil pour machines à tricoter circulaires multiples

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3131729A (en) * 1959-12-04 1964-05-05 Sulzer Ag Weft thread supply system for looms for weaving
FR1423405A (fr) * 1965-02-02 1966-01-03 Elitex Zavody Textilniho Dispositif d'amenée de fil pour machines à tricoter circulaires multiples

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3722551A (en) * 1971-05-10 1973-03-27 Nissan Motor Method and apparatus for preparing weft yarn in a shuttleless loom
US3799212A (en) * 1971-07-14 1974-03-26 Zbrojovka Vsetin Np Yarn feeding device for textile machines
US3967654A (en) * 1973-11-27 1976-07-06 Jakob Muller, Forschungs-Und Finanz Ag Yarn feed mechanism for a weaving machine
US4371009A (en) * 1980-03-28 1983-02-01 Sulzer Brothers Limited Weft yarn accumulator
US20150203999A1 (en) * 2012-07-11 2015-07-23 Lindauer Dornier Gmbh Device for the Intermediate Storage of Band-Like Weft Material for a Weaving Machine and Weaving Machine Having Such a Device
US9328437B2 (en) * 2012-07-11 2016-05-03 Lindauer Dornier Gesellschaft Mbh Device for the intermediate storage of band-like weft material for a weaving machine and weaving machine having such a device
CN103710823A (zh) * 2013-12-25 2014-04-09 青岛铠硕纺机有限公司 一种塑料编织机用皮带喂入式扁丝测长装置
CN103710823B (zh) * 2013-12-25 2015-01-07 青岛铠硕纺机有限公司 一种塑料编织机用皮带喂入式扁丝测长装置
CN104195730A (zh) * 2014-08-29 2014-12-10 青岛天一集团红旗纺织机械有限公司 一种喷气织机用夹纱器
CN104195730B (zh) * 2014-08-29 2016-02-24 青岛天一集团红旗纺织机械有限公司 一种喷气织机用夹纱器
US20240200241A1 (en) * 2021-04-19 2024-06-20 Lindauer Dornier Gesellschaft Mit Beschraenkter Haftung Device for feeding weft threads to a gripper head of a loom

Also Published As

Publication number Publication date
DE1947591A1 (de) 1970-03-26
FR2018586A1 (enrdf_load_stackoverflow) 1970-05-29
DE1947591B2 (de) 1973-08-02
DE1947591C3 (de) 1974-02-28
BE739122A (enrdf_load_stackoverflow) 1970-03-02
GB1259033A (enrdf_load_stackoverflow) 1972-01-05

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