EP3219838A3 - Weft detection method and weft detection device for jet loom - Google Patents

Weft detection method and weft detection device for jet loom Download PDF

Info

Publication number
EP3219838A3
EP3219838A3 EP17158313.1A EP17158313A EP3219838A3 EP 3219838 A3 EP3219838 A3 EP 3219838A3 EP 17158313 A EP17158313 A EP 17158313A EP 3219838 A3 EP3219838 A3 EP 3219838A3
Authority
EP
European Patent Office
Prior art keywords
arrival timing
weft detection
weft arrival
pulse generation
cpu
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
EP17158313.1A
Other languages
German (de)
French (fr)
Other versions
EP3219838B1 (en
EP3219838A2 (en
Inventor
Yoichi Makino
Taijirou Okuda
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.)
Toyota Industries Corp
Original Assignee
Toyota Industries Corp
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 Toyota Industries Corp filed Critical Toyota Industries Corp
Publication of EP3219838A2 publication Critical patent/EP3219838A2/en
Publication of EP3219838A3 publication Critical patent/EP3219838A3/en
Application granted granted Critical
Publication of EP3219838B1 publication Critical patent/EP3219838B1/en
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

Links

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
    • D03D47/28—Looms in which bulk supply of weft does not pass through shed, e.g. shuttleless looms, gripper shuttle looms, dummy shuttle looms wherein the weft itself is projected into the shed
    • D03D47/30—Looms in which bulk supply of weft does not pass through shed, e.g. shuttleless looms, gripper shuttle looms, dummy shuttle looms wherein the weft itself is projected into the shed by gas jet
    • D03D47/3066—Control or handling of the weft at or after arrival
    • D03D47/3073—Detection means therefor
    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
    • D03D51/00—Driving, starting, or stopping arrangements; Automatic stop motions
    • D03D51/18—Automatic stop motions
    • D03D51/34—Weft stop motions

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Looms (AREA)

Abstract

A CPU adds pulse generation angles to pulse signals input by a photoelectric detector and forms a pulse generation angle string with the pulse generation angles of the input pulse signals. The pulse generation angle string formed by the CPU for each pick is stored in a memory. The CPU also functions as an average weft arrival timing calculating means, a first tentative weft arrival timing setting means, a first weft arrival timing determining means, a second tentative weft arrival timing setting means, and a second weft arrival timing determining means.
EP17158313.1A 2016-03-16 2017-02-28 Weft detection method and weft detection device for jet loom Not-in-force EP3219838B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2016052236A JP6380434B2 (en) 2016-03-16 2016-03-16 Weft detection method and weft detection device in jet loom

Publications (3)

Publication Number Publication Date
EP3219838A2 EP3219838A2 (en) 2017-09-20
EP3219838A3 true EP3219838A3 (en) 2017-10-18
EP3219838B1 EP3219838B1 (en) 2018-12-05

Family

ID=58212925

Family Applications (1)

Application Number Title Priority Date Filing Date
EP17158313.1A Not-in-force EP3219838B1 (en) 2016-03-16 2017-02-28 Weft detection method and weft detection device for jet loom

Country Status (3)

Country Link
EP (1) EP3219838B1 (en)
JP (1) JP6380434B2 (en)
CN (1) CN107201594B (en)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4716941A (en) * 1986-01-13 1988-01-05 Tsudakoma Corp. Faulty picking diagnosing system for a fluid jet loom
JPH0424245A (en) * 1990-05-17 1992-01-28 Toyota Autom Loom Works Ltd Weft inserting controller in jet loom
JPH04272255A (en) * 1991-02-20 1992-09-29 Toyota Autom Loom Works Ltd Weft-detecting and displaying device in loom

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3471731B2 (en) * 2000-09-07 2003-12-02 津田駒工業株式会社 Weft insertion control device for fluid jet loom
JP4889087B2 (en) * 2005-10-17 2012-02-29 津田駒工業株式会社 Judging method of defective yarn feeder in fluid jet loom
JP5398176B2 (en) * 2008-02-07 2014-01-29 津田駒工業株式会社 Weft insertion status display method and display device for loom
JP6190250B2 (en) * 2013-11-14 2017-08-30 株式会社豊田自動織機 Weft detection device for air jet loom
CN204455471U (en) * 2014-12-16 2015-07-08 苏州盛运智能科技有限公司 Water jet looms weft yarn signal digital detector

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4716941A (en) * 1986-01-13 1988-01-05 Tsudakoma Corp. Faulty picking diagnosing system for a fluid jet loom
JPH0424245A (en) * 1990-05-17 1992-01-28 Toyota Autom Loom Works Ltd Weft inserting controller in jet loom
JPH04272255A (en) * 1991-02-20 1992-09-29 Toyota Autom Loom Works Ltd Weft-detecting and displaying device in loom

Also Published As

Publication number Publication date
CN107201594B (en) 2018-11-20
CN107201594A (en) 2017-09-26
EP3219838B1 (en) 2018-12-05
JP6380434B2 (en) 2018-08-29
JP2017166088A (en) 2017-09-21
EP3219838A2 (en) 2017-09-20

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