US3750716A - Apparatus for supplying weft yarns - Google Patents

Apparatus for supplying weft yarns Download PDF

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Publication number
US3750716A
US3750716A US00058627A US3750716DA US3750716A US 3750716 A US3750716 A US 3750716A US 00058627 A US00058627 A US 00058627A US 3750716D A US3750716D A US 3750716DA US 3750716 A US3750716 A US 3750716A
Authority
US
United States
Prior art keywords
yarn
carrier
weft
ejecting
gripping
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
US00058627A
Other languages
English (en)
Inventor
H Kimura
H Arimoto
H Nara
T Miyamatsu
M Kitajima
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.)
Unitika Ltd
Original Assignee
Unitika Ltd
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
Priority claimed from JP5927269A external-priority patent/JPS4825035B1/ja
Priority claimed from JP3557970A external-priority patent/JPS49426B1/ja
Priority claimed from JP3616270A external-priority patent/JPS491268B1/ja
Application filed by Unitika Ltd filed Critical Unitika Ltd
Application granted granted Critical
Publication of US3750716A publication Critical patent/US3750716A/en
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • 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
    • D03D47/12—Looms in which bulk supply of weft does not pass through shed, e.g. shuttleless looms, gripper shuttle looms, dummy shuttle looms wherein single picks of weft thread are inserted, i.e. with shedding between each pick
    • D03D47/125—Weft holding devices
    • 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
    • D03D47/36—Measuring and cutting the weft
    • D03D47/368—Air chamber storage devices

Definitions

  • FIG. 1A is a longitudinal view of one type of device for adjusting the distance between the ejecting device of FIG. I and the weft'yam cutter;
  • FIG. 2 is a perspective view of the apparatus shown in FIG. 1 and disposed at one side of the loom;
  • the yarn carrier in FIG. 4 includes a long curved groove 310 on the nip arm and a short groove 311 on the stationary nip arm 35 so that most of the bent resilient member 36 is inserted into the long groove 310 while the portion not inserted thereinto is inserted into the short groove 311 at one end. Since the nip arm 34 is movably engaged with a fulcrum A fixed .to the holder plates 31 and 32, the yarn gripping portion 340 is held by the biasing force of the resilient member 36 so that the yarn grippers 34a and 35a pass through the yarn guide groove at the end 33a so as to be disposed parallel with the flying direction of the yarn carrier.
  • the yarn gripping portion 34a of the nip arm 34' is always urged against the yarn gripping portion 3501 by means of the biasing force of the resilient member or curved spring 36', which has one end inserted into the short groove 311 provided at one end of the stationary nip arm 35 and has its other end inserted into the long groove 310' of the nip arm 34' near the end opposite the engaging point of the end 34fof the nip arm 34' and gauge plate 39.
  • 53a of the device is provided in contact with the area of the. small hole 51d, of the tube 51.
  • 53b is a pipe or tube connected to a pressure reducing device provided separately and not shown.
  • 54 is a yarn gripper using electromagnets for intermittently gripping the weft yarn F.
  • the nip arms 62 and 62' may open or close at the fulcrums 64 and 64 as a center so that the yarn grippers 62a and 62a of the nip arms are depressed by the leaf springs 65 and 65.
  • this invention provides apparatus for supplying weft yarn directly into the shed by gripping the end of the weft yarn by a yarn carrier in a loom which includes one or more yarn ejecting means for ejecting a plurality of weft yarns by ejecting or suctioning and drawn from a plurality of cheeses disposed at one or both sides of the loom at the initial flying position of the yarn carrier with one or more yarn and holding means for holding the end of the weft yarn, and having a plurality of weft yarn elevational guides disposed between the yarn ejecting means and cheese and between a plurality of yarn gripping means and the yarn ejecting means.
  • the yarn carrier 75 reaches the other yarn carrier receiving device (not shown), and, upon completion of the weaving of the warp yarn into the weft yarn, the electromagnets 79g are de-energized simultaneously, whereby weft yarn F l is again depressed by the force of the biasing member 79h on the gripping plate 79a and stationary yarn gripping plate 79e. Further, the weft yarn cutter 84 also operates simultaneously to cut the weft yarn F1.
  • said holding means including a suction fluid flow for holding said yarn end in the flowing direction by said suction force of fluid
  • said yarn carrier further comprising nip arms including two arms and having a yarn gripping portion thereon for gripping the yarn, said nip arms actuated by depressing said arms by the force of a resilient biasing means located at the front of said yarn carrier with respect to the feeding direction of the yarn carrier, and exterior means for forming a gap for passing the yarn freely upon release of the depression of the yarn gripping portion, when the yarn carrier is depressed by applying an exterior force against said biasing force, said yarn gripping portion including a convergent width from the front of said yarn carrier to the yarn gripping portion in the feeding direction of the yarn carrier, a flared end in the same direction as the opening of said gripping portion, and a yarn guide groove for guiding the yarn to said yarn carrier so that the connecting line between the end of the groove and the yarn grip

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Looms (AREA)
US00058627A 1969-07-26 1970-07-27 Apparatus for supplying weft yarns Expired - Lifetime US3750716A (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP5927269A JPS4825035B1 (enExample) 1969-07-26 1969-07-26
JP3557970A JPS49426B1 (enExample) 1970-04-25 1970-04-25
JP3616270A JPS491268B1 (enExample) 1970-04-27 1970-04-27

Publications (1)

Publication Number Publication Date
US3750716A true US3750716A (en) 1973-08-07

Family

ID=27288807

Family Applications (1)

Application Number Title Priority Date Filing Date
US00058627A Expired - Lifetime US3750716A (en) 1969-07-26 1970-07-27 Apparatus for supplying weft yarns

Country Status (5)

Country Link
US (1) US3750716A (enExample)
CH (1) CH517196A (enExample)
DE (1) DE2037158A1 (enExample)
FR (1) FR2053188B1 (enExample)
GB (1) GB1325604A (enExample)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3853151A (en) * 1971-01-08 1974-12-10 Rueti Te Strake Bv Weaving machine
US4015642A (en) * 1975-12-29 1977-04-05 Francesco Mollica Shuttleless loom of the type having unidirectional weft thread carriers
US4285285A (en) * 1978-11-10 1981-08-25 Newroyd Limited Feed device and method for feeding yarn or other textile material
US4565225A (en) * 1983-09-01 1986-01-21 Maschinenfabrik Sulzer-Ruti Ag Weaving machine
US7836918B1 (en) * 2009-11-18 2010-11-23 Paradox LLC Process for imparting high stretch, recovery and modulus into a woven fabric
US10550497B1 (en) * 2016-05-27 2020-02-04 Apple, Inc. Weaving equipment

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3738396A (en) * 1972-03-27 1973-06-12 North American Rockwell Weft storage device
NL7610385A (nl) * 1976-09-17 1978-03-21 Rueti Te Strake Bv Pneumatische weefmachine, alsmede daarvoor bestemde inslagtransporteur.
US4190089A (en) * 1979-01-11 1980-02-26 Crompton & Knowles Corporation Projectile launching apparatus
US4450874A (en) * 1981-01-07 1984-05-29 Leesona Corporation Yarn clamp
EP0090876A1 (de) * 1982-04-07 1983-10-12 GebràœDer Sulzer Aktiengesellschaft Schussfadengeberdüse für Webmaschinen, insbesondere Greiferprojektil-Webmaschinen
FR2547837B1 (fr) * 1983-06-24 1986-05-16 Galland Philippe Dispositif de selection de trames multiples a buse unique d'insertion pour machines a tisser a jet d'air

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SU183135A1 (ru) * Избирательной подачи нитей к прокладчику утка бесчелночного ткацкого станка
US795250A (en) * 1903-12-31 1905-07-18 George S Cox And Brother Weft-positioning means for looms.
US3105523A (en) * 1960-04-28 1963-10-01 Borrell Joaquin Capellas Circular loom for weaving a number of separate fabrics simultaneously
GB1098802A (en) * 1965-01-22 1968-01-10 Zangs Ag Maschf Loom

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SU183135A1 (ru) * Избирательной подачи нитей к прокладчику утка бесчелночного ткацкого станка
US795250A (en) * 1903-12-31 1905-07-18 George S Cox And Brother Weft-positioning means for looms.
US3105523A (en) * 1960-04-28 1963-10-01 Borrell Joaquin Capellas Circular loom for weaving a number of separate fabrics simultaneously
GB1098802A (en) * 1965-01-22 1968-01-10 Zangs Ag Maschf Loom

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3853151A (en) * 1971-01-08 1974-12-10 Rueti Te Strake Bv Weaving machine
US4015642A (en) * 1975-12-29 1977-04-05 Francesco Mollica Shuttleless loom of the type having unidirectional weft thread carriers
US4285285A (en) * 1978-11-10 1981-08-25 Newroyd Limited Feed device and method for feeding yarn or other textile material
US4565225A (en) * 1983-09-01 1986-01-21 Maschinenfabrik Sulzer-Ruti Ag Weaving machine
US7836918B1 (en) * 2009-11-18 2010-11-23 Paradox LLC Process for imparting high stretch, recovery and modulus into a woven fabric
US10550497B1 (en) * 2016-05-27 2020-02-04 Apple, Inc. Weaving equipment

Also Published As

Publication number Publication date
FR2053188A1 (enExample) 1971-04-16
CH517196A (de) 1971-12-31
DE2037158A1 (de) 1971-02-18
GB1325604A (en) 1973-08-08
FR2053188B1 (enExample) 1973-03-16

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