EP1333115A3 - A tension-sensing device for the thread of weft feeders in textile machines - Google Patents

A tension-sensing device for the thread of weft feeders in textile machines Download PDF

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Publication number
EP1333115A3
EP1333115A3 EP03001430A EP03001430A EP1333115A3 EP 1333115 A3 EP1333115 A3 EP 1333115A3 EP 03001430 A EP03001430 A EP 03001430A EP 03001430 A EP03001430 A EP 03001430A EP 1333115 A3 EP1333115 A3 EP 1333115A3
Authority
EP
European Patent Office
Prior art keywords
thread
textile machines
tension
elements
sensing device
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
EP03001430A
Other languages
German (de)
French (fr)
Other versions
EP1333115B1 (en
EP1333115A2 (en
Inventor
Pietro Zenoni
Rosario Castelli
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.)
LGL Electronics SpA
Original Assignee
LGL Electronics SpA
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 LGL Electronics SpA filed Critical LGL Electronics SpA
Publication of EP1333115A2 publication Critical patent/EP1333115A2/en
Publication of EP1333115A3 publication Critical patent/EP1333115A3/en
Application granted granted Critical
Publication of EP1333115B1 publication Critical patent/EP1333115B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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
    • D03D47/34—Handling the weft between bulk storage and weft-inserting means
    • D03D47/36—Measuring and cutting the weft
    • D03D47/361—Drum-type weft feeding devices
    • D03D47/364—Yarn braking means acting on the drum
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H59/00—Adjusting or controlling tension in filamentary material, e.g. for preventing snarling; Applications of tension indicators
    • B65H59/40—Applications of tension indicators
    • 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
    • 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
    • D03D47/361—Drum-type weft feeding devices
    • D03D47/364—Yarn braking means acting on the drum
    • D03D47/366—Conical
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2553/00—Sensing or detecting means
    • B65H2553/20—Sensing or detecting means using electric elements
    • B65H2553/21—Variable resistances, e.g. rheostats, potentiometers or strain gauges
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2701/00—Handled material; Storage means
    • B65H2701/30—Handled filamentary material
    • B65H2701/31—Textiles threads or artificial strands of filaments

Abstract

A device for sensing the mechanical tension of the thread (F) and for converting it into electrical signals for driving modulated braking means (17) in weft feeders (10) for textile machines comprises a thread-guiding bush (19) crossed by the thread that unwinds from the drum (11) of the feeder (10) and means (24-25) for sensing and converting the mechanical tension that the thread transmits to the bush. According to the invention, the thread-guiding bush (19) is rigidly coupled to one of the rigid elements of a suspension frame (20) so as to be an integral part thereof, and the frame comprises at least two rigid frame elements (19a-21) and at least two elastically deformable elements (22-23), which are mutually and rigidly connected to each other according to a configuration shaped substantially like an elastically deformable quadrilateral.
EP03001430A 2002-02-01 2003-01-22 A tension-sensing device for the thread of weft feeders in textile machines Expired - Lifetime EP1333115B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT2002TO000089A ITTO20020089A1 (en) 2002-02-01 2002-02-01 ,, IMPROVEMENT OF THE MECHANICAL TENSION DETECTION DEVICES OF THE YARN AND OF ITS CONVERSION INTO ELECTRIC SIGNALS OF PI
ITTO20020089 2002-02-01

Publications (3)

Publication Number Publication Date
EP1333115A2 EP1333115A2 (en) 2003-08-06
EP1333115A3 true EP1333115A3 (en) 2004-01-02
EP1333115B1 EP1333115B1 (en) 2007-10-24

Family

ID=11459386

Family Applications (1)

Application Number Title Priority Date Filing Date
EP03001430A Expired - Lifetime EP1333115B1 (en) 2002-02-01 2003-01-22 A tension-sensing device for the thread of weft feeders in textile machines

Country Status (3)

Country Link
EP (1) EP1333115B1 (en)
DE (1) DE60316999T2 (en)
IT (1) ITTO20020089A1 (en)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0536088A1 (en) * 1991-09-20 1993-04-07 L.G.L. ELECTRONICS S.p.A. Modulated thread braking device for weft feeders
DE4300633A1 (en) * 1992-01-15 1993-07-22 Barmag Barmer Maschf Synthetic multifilament yarn prodn. - in which yarn tension measurement is based on the movement of a flat spring in line with the yarn

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0536088A1 (en) * 1991-09-20 1993-04-07 L.G.L. ELECTRONICS S.p.A. Modulated thread braking device for weft feeders
DE4300633A1 (en) * 1992-01-15 1993-07-22 Barmag Barmer Maschf Synthetic multifilament yarn prodn. - in which yarn tension measurement is based on the movement of a flat spring in line with the yarn

Also Published As

Publication number Publication date
ITTO20020089A1 (en) 2003-08-01
EP1333115B1 (en) 2007-10-24
DE60316999T2 (en) 2008-07-31
ITTO20020089A0 (en) 2002-02-01
EP1333115A2 (en) 2003-08-06
DE60316999D1 (en) 2007-12-06

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