[go: up one dir, main page]

EP1314806A3 - A control method and system for weft-braking devices for automatically adjusting the mechanical tension of the yarn in weaving maschines - Google Patents

A control method and system for weft-braking devices for automatically adjusting the mechanical tension of the yarn in weaving maschines Download PDF

Info

Publication number
EP1314806A3
EP1314806A3 EP02013025A EP02013025A EP1314806A3 EP 1314806 A3 EP1314806 A3 EP 1314806A3 EP 02013025 A EP02013025 A EP 02013025A EP 02013025 A EP02013025 A EP 02013025A EP 1314806 A3 EP1314806 A3 EP 1314806A3
Authority
EP
European Patent Office
Prior art keywords
weft
yarn
weaving
automatically adjusting
picking
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
EP02013025A
Other languages
German (de)
French (fr)
Other versions
EP1314806B1 (en
EP1314806A2 (en
Inventor
Pietro Zenoni
Luca Gotti
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 EP1314806A2 publication Critical patent/EP1314806A2/en
Publication of EP1314806A3 publication Critical patent/EP1314806A3/en
Application granted granted Critical
Publication of EP1314806B1 publication Critical patent/EP1314806B1/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

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Looms (AREA)
  • Valves And Accessory Devices For Braking Systems (AREA)
  • Control Of Electric Motors In General (AREA)
  • Braking Arrangements (AREA)

Abstract

An improved method for controlling electrically operated weft-braking devices, capable of automatically adjusting the mechanical tension of the weft yarn (F) in mechanical-picking weaving machines (TE), is disclosed herein. The excitation current (Ie) of the weft-braking device (LF) is controlled by an adjustment loop (A) using a signal (tens-mis), which is a measure of the actual tension of the yarn, as a feedback signal for the adjustment loop (A). The improvement comprises employing an average value (TMx), which is computed at predetermined intervals (x) of weft picking and for a predetermined number (i) of picking strokes, in order to measure the direct tension of the thread (F), so that said average value (TMx) is substantially stable and not affected by fluctuations due to variations of the parameters of the weaving process.
EP02013025A 2001-07-25 2002-06-13 A control method and system for weft-braking devices for automatically adjusting the mechanical tension of the yarn in weaving maschines Expired - Lifetime EP1314806B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT2001TO000737A ITTO20010737A1 (en) 2001-07-25 2001-07-25 PERFECTED METHOD AND SYSTEM FOR CHECKING BRAKES AND ELECTRIC-CONTROLLED DEVICES FOR AUTOMATIC ADJUSTMENT OF MECHANICAL VOLTAGE
ITTO20010737 2001-07-25

Publications (3)

Publication Number Publication Date
EP1314806A2 EP1314806A2 (en) 2003-05-28
EP1314806A3 true EP1314806A3 (en) 2003-11-12
EP1314806B1 EP1314806B1 (en) 2006-12-13

Family

ID=11459090

Family Applications (1)

Application Number Title Priority Date Filing Date
EP02013025A Expired - Lifetime EP1314806B1 (en) 2001-07-25 2002-06-13 A control method and system for weft-braking devices for automatically adjusting the mechanical tension of the yarn in weaving maschines

Country Status (4)

Country Link
EP (1) EP1314806B1 (en)
CN (1) CN100439582C (en)
DE (1) DE60216713T2 (en)
IT (1) ITTO20010737A1 (en)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10343506A1 (en) * 2003-09-19 2005-04-14 Iropa Ag Method for adaptively controlling an electrically operated weft brake
ITMI20051325A1 (en) * 2005-07-12 2007-01-13 Btsr Int Spa METHOD AND DEVICE TO ENSURE THE SUPPLY OF A CONSTANT VOLTAGE THREAD WITH A DOUBLE RING ADJUSTMENT TO A TEXTILE MACHINE
ITTO20050484A1 (en) * 2005-07-14 2007-01-15 L G L Electronics Spa CONTROL UNIT FOR YARN BRAKING DEVICES IN WEAVE FEEDERS FOR WEAVING FRAMES, AND PROCEDURE FOR TUNING THE SAME
EP1961686B1 (en) * 2007-02-20 2016-09-14 Iro Ab Yarn tension monitoring and setting system
ITTO20110840A1 (en) * 2011-09-20 2013-03-21 Lgl Electronics Spa METHOD OF CALIBRATION OF TENSIONED YARN POWER SUPPLIES CONTROLLED ON WEAVING LINES.
ITTO20110977A1 (en) 2011-10-27 2013-04-28 Lgl Electronics Spa "METHOD AND DEVICE FOR THE OPENING AND NEXT CLOSING OF A WEAVING BRAKE IN A YARN FEEDER"
CN104073959B (en) * 2013-03-25 2015-12-23 杨欣圃 Coaxial electrical magnetic compensation tensioner
EP2924156B1 (en) * 2014-03-28 2016-11-23 L.G.L. Electronics S.p.A. Yarn-braking device for storage yarn feeders
DE102015118027B3 (en) * 2015-10-22 2016-11-17 Memminger-Iro Gmbh Method for controlling the thread delivery of a yarn feeding device and yarn feeding device
EP4474549A1 (en) * 2023-06-05 2024-12-11 Vandewiele NV Method of operating a weaving machine
EP4474548A1 (en) * 2023-06-05 2024-12-11 Vandewiele NV Method of operating a weaving machine
EP4474547A1 (en) * 2023-06-05 2024-12-11 Vandewiele NV Method of operating a weaving machine

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0619261A1 (en) * 1993-04-05 1994-10-12 B.T.S.R. International S.p.A. Method and device for monitoring and maintaining correct regulation of the tension of a yarn fed to a textile machine
US5476122A (en) * 1993-03-05 1995-12-19 Lindauer Dornier Gesellschaft Mbh Weft thread brake responsive to yarn characteristics in a loom
US5669421A (en) * 1994-10-17 1997-09-23 Sulzer Ruti Ag Method of controlling the yarn tension in a weaving machine
EP1106721A1 (en) * 1999-11-30 2001-06-13 L.G.L. Electronics S.p.A. Method and device for controlling electrically actuated weft brakes for the automatic adjustment of mechanical tension of a weft thread in textile machines with mechanical insertion

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE9400248D0 (en) * 1994-01-26 1994-01-26 Iro Ab Controllable output brake for yarn feed device for textile machines, in particular projectile or gripper-type weaving machines

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5476122A (en) * 1993-03-05 1995-12-19 Lindauer Dornier Gesellschaft Mbh Weft thread brake responsive to yarn characteristics in a loom
EP0619261A1 (en) * 1993-04-05 1994-10-12 B.T.S.R. International S.p.A. Method and device for monitoring and maintaining correct regulation of the tension of a yarn fed to a textile machine
US5669421A (en) * 1994-10-17 1997-09-23 Sulzer Ruti Ag Method of controlling the yarn tension in a weaving machine
EP1106721A1 (en) * 1999-11-30 2001-06-13 L.G.L. Electronics S.p.A. Method and device for controlling electrically actuated weft brakes for the automatic adjustment of mechanical tension of a weft thread in textile machines with mechanical insertion

Also Published As

Publication number Publication date
ITTO20010737A1 (en) 2003-01-25
CN1399022A (en) 2003-02-26
EP1314806B1 (en) 2006-12-13
DE60216713T2 (en) 2007-11-08
CN100439582C (en) 2008-12-03
DE60216713D1 (en) 2007-01-25
EP1314806A2 (en) 2003-05-28
ITTO20010737A0 (en) 2001-07-25

Similar Documents

Publication Publication Date Title
EP1314806A3 (en) A control method and system for weft-braking devices for automatically adjusting the mechanical tension of the yarn in weaving maschines
CN101223094B (en) Double control loop method and device for ensuring constant tension yarn feed to a textile machine
CN1008545B (en) Yarn feeding device with electronic control of yarn tension
CZ287733B6 (en) Method of controlling thread feed and apparatus for making the same
US4949759A (en) Seersucker loom with tension regulation of puckering warp
CN102317521A (en) Device for controlling the weft band tension on a shuttle, shuttles provided therewith and circular loom
US7475570B2 (en) Textile machine with yarn feeding control
IT1264003B (en) METHOD AND DEVICE TO CHECK AND MAINTAIN THE CORRECT ADJUSTMENT OF THE TENSION OF A YARN SUPPLIED TO A TEXTILE MACHINE
EP0257857A2 (en) Terry loop ratio control device
KR100503478B1 (en) Weft yarn deflection brake and method for controlling the weft insertion into a weaving machine
US6810918B2 (en) Method and apparatus for variably braking the weft thread between a supply spool and a thread store in a loom
US20130327877A1 (en) Tension-controlling method for a yarn unwinding from a storage yarn feeder to a textile machine
US6105627A (en) Method to control weft yarn insertion in a loom
US7073399B2 (en) Yarn processing system
DK0496838T3 (en) Method and apparatus for electronically controlling a terry tissue
US6418977B1 (en) Yarn processing system with weft yarn tension regulation
JPH07305250A (en) Method for controlling order of motion for let-off of pile warp and terry loom for executing its method
EP0965552A3 (en) Yarn reserve monitoring device in weft feeders for weaving looms
GB2278129A (en) Device for continuously regulating weft feeler sensitivity in a loom
EP1091032A2 (en) A let-off control device for a weaving machine
US20020195160A1 (en) Method and apparatus for the regulation of the warp let-off a weaving machine
JP2002538323A (en) How to monitor the running / stopped state of the weft
EP0311206B1 (en) Method for carrying on weaving from a separate thread supply after a warp break, and a weaving machine which uses this method
JPS633054B2 (en)
JPH11172554A (en) Delivery controlling apparatus for loom

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR

AX Request for extension of the european patent

Extension state: AL LT LV MK RO SI

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Kind code of ref document: A3

Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR

AX Request for extension of the european patent

Extension state: AL LT LV MK RO SI

17P Request for examination filed

Effective date: 20040110

AKX Designation fees paid

Designated state(s): BE CH DE LI SE

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): BE CH DE LI SE

REG Reference to a national code

Ref country code: CH

Ref legal event code: EP

REG Reference to a national code

Ref country code: SE

Ref legal event code: TRGR

REF Corresponds to:

Ref document number: 60216713

Country of ref document: DE

Date of ref document: 20070125

Kind code of ref document: P

REG Reference to a national code

Ref country code: CH

Ref legal event code: NV

Representative=s name: PA ALDO ROEMPLER

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed

Effective date: 20070914

REG Reference to a national code

Ref country code: CH

Ref legal event code: PCAR

Free format text: ALDO ROEMPLER PATENTANWALT;BRENDENWEG 11 POSTFACH 154;9424 RHEINECK (CH)

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: CH

Payment date: 20090904

Year of fee payment: 8

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LI

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20100630

Ref country code: CH

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20100630

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: SE

Payment date: 20180625

Year of fee payment: 17

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20190611

Year of fee payment: 18

REG Reference to a national code

Ref country code: SE

Ref legal event code: EUG

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20190614

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: BE

Payment date: 20200625

Year of fee payment: 19

REG Reference to a national code

Ref country code: DE

Ref legal event code: R119

Ref document number: 60216713

Country of ref document: DE

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20210101

REG Reference to a national code

Ref country code: BE

Ref legal event code: MM

Effective date: 20210630

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: BE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20210630