EP1801273A3 - Weft stock detector for weft feeders - Google Patents

Weft stock detector for weft feeders Download PDF

Info

Publication number
EP1801273A3
EP1801273A3 EP06021600A EP06021600A EP1801273A3 EP 1801273 A3 EP1801273 A3 EP 1801273A3 EP 06021600 A EP06021600 A EP 06021600A EP 06021600 A EP06021600 A EP 06021600A EP 1801273 A3 EP1801273 A3 EP 1801273A3
Authority
EP
European Patent Office
Prior art keywords
weft
drum
slot
feeler
loops
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
EP06021600A
Other languages
German (de)
French (fr)
Other versions
EP1801273A2 (en
EP1801273B1 (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 EP1801273A2 publication Critical patent/EP1801273A2/en
Publication of EP1801273A3 publication Critical patent/EP1801273A3/en
Application granted granted Critical
Publication of EP1801273B1 publication Critical patent/EP1801273B1/en
Active 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
    • D03D47/34—Handling the weft between bulk storage and weft-inserting means
    • D03D47/36—Measuring and cutting the weft
    • D03D47/361—Drum-type weft feeding devices
    • D03D47/367—Monitoring yarn quantity on the drum

Landscapes

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

Abstract

The detector is applied to weft feeders provided with a stationary drum (12) on which yam loops are wound to form a weft stock (RT). Three feeler arms (22, 24, 26) are hinged by side of the drum about respective axes (28, 30, 32) and are biased with their respective contact ends (34a) against the drum for swinging between an active lifted position and a lowered resting postion in relation to the presence/absence of loops on the drum. Photoelectric cells (42) arranged to detect the movements of the feeler arms each comprise an emitting diode (47) generating a stream of photons through an elongated narrow slot (48) extending radially, and a photodiode (50) in front of the slot (48). The feeler arm has a shield (52) insertable between the diode and the photodiod and delimited frontally by a rectilinear edge (54) aligned to the outer edge of the slot with the feeler arm in its resting position, in order to obscure the slot.
EP20060021600 2005-12-22 2006-10-16 Weft stock detector for weft feeders Active EP1801273B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ITTO20050893 ITTO20050893A1 (en) 2005-12-22 2005-12-22 STOCK DETECTOR WEIGHING PERFECTED FOR PLOT FOOD DEVICES

Publications (3)

Publication Number Publication Date
EP1801273A2 EP1801273A2 (en) 2007-06-27
EP1801273A3 true EP1801273A3 (en) 2009-04-29
EP1801273B1 EP1801273B1 (en) 2010-07-07

Family

ID=37865736

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20060021600 Active EP1801273B1 (en) 2005-12-22 2006-10-16 Weft stock detector for weft feeders

Country Status (4)

Country Link
EP (1) EP1801273B1 (en)
CN (1) CN1986929B (en)
DE (1) DE602006015277D1 (en)
IT (1) ITTO20050893A1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ITTO20111217A1 (en) * 2011-12-28 2013-06-29 Lgl Electronics Spa MILLING-PLANE DEVICE FOR FIXED DRUM YARN FEEDERS

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1999030999A1 (en) * 1997-12-17 1999-06-24 Iro Patent Ag Thread delivery device
EP0965552A2 (en) * 1998-06-16 1999-12-22 L.G.L. Electronics S.p.A. Yarn reserve monitoring device in weft feeders for weaving looms

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1999030999A1 (en) * 1997-12-17 1999-06-24 Iro Patent Ag Thread delivery device
EP0965552A2 (en) * 1998-06-16 1999-12-22 L.G.L. Electronics S.p.A. Yarn reserve monitoring device in weft feeders for weaving looms

Also Published As

Publication number Publication date
CN1986929B (en) 2011-05-25
DE602006015277D1 (en) 2010-08-19
CN1986929A (en) 2007-06-27
ITTO20050893A1 (en) 2007-06-23
EP1801273A2 (en) 2007-06-27
EP1801273B1 (en) 2010-07-07

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