EP2175058A1 - Métier à tisser doté d'un capteur de qualité de fil - Google Patents

Métier à tisser doté d'un capteur de qualité de fil Download PDF

Info

Publication number
EP2175058A1
EP2175058A1 EP08017764A EP08017764A EP2175058A1 EP 2175058 A1 EP2175058 A1 EP 2175058A1 EP 08017764 A EP08017764 A EP 08017764A EP 08017764 A EP08017764 A EP 08017764A EP 2175058 A1 EP2175058 A1 EP 2175058A1
Authority
EP
European Patent Office
Prior art keywords
weft
yarn
quality sensor
weaving machine
yarn quality
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
EP08017764A
Other languages
German (de)
English (en)
Other versions
EP2175058B1 (fr
Inventor
Walter Schümperli
Erich Weidmann
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.)
Loepfe AG Gebrueder
Original Assignee
Loepfe AG Gebrueder
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 Loepfe AG Gebrueder filed Critical Loepfe AG Gebrueder
Priority to EP20080017764 priority Critical patent/EP2175058B1/fr
Publication of EP2175058A1 publication Critical patent/EP2175058A1/fr
Application granted granted Critical
Publication of EP2175058B1 publication Critical patent/EP2175058B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H63/00—Warning or safety devices, e.g. automatic fault detectors, stop-motions ; Quality control of the package
    • B65H63/06—Warning or safety devices, e.g. automatic fault detectors, stop-motions ; Quality control of the package responsive to presence of irregularities in running material, e.g. for severing the material at irregularities ; Control of the correct working of the yarn cleaner
    • B65H63/062—Electronic slub detector
    • 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
    • D03D47/342—Handling the weft between bulk storage and weft-inserting means knot detection
    • 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

Definitions

  • the invention relates to a weaving machine with yarn quality sensor according to the preamble of claim 1.
  • Yarn defects can affect the quality of fabric. Therefore, the yarn used for weaving is subjected to regular quality controls.
  • lint i. Tufts entrained by the yarn present a problem in the fabric, but e.g. also knots or other yarn defects.
  • JP 7-42069 It is proposed to use a lint monitor in the weaving machine, but the sensor principle described there requires a complicated mechanical deflection of the yarn and would not be suitable for on-line measurement on the jerk-accelerated weft.
  • a yarn quality sensor is arranged between the weft feeder and the compartment.
  • This arrangement is based on the finding that yarn defects, in particular in the weft thread, are still relatively late, e.g. in the loom, can arise.
  • a tufts of fibers accumulate, which are entrained by the yarn at a certain time and introduced into the fabric. Due to the arrangement of the quality sensor after the weft feeder and such errors can still be detected.
  • the yarn quality sensor is a non-contact sensor, so that it itself can not contribute to deterioration of the yarn quality.
  • the invention also relates to a method of operating a weaving machine in which the weft thread moved by the weft drive is moved between the weft feeder and the tray by a yarn quality sensor.
  • the yarn quality sensor In the yarn quality sensor, at least one quality feature, e.g. the diameter or cross section of the yarn measured.
  • the invention is particularly suitable for detecting lint on the weft thread.
  • FIG. 1 schematically represents a weaving machine in the region of the weft insertion in front of the compartment.
  • the loom according to Fig. 1 has a reed 2 with the sheets 3, which lead in a known manner, the warp threads 4 and used to hit the weft thread 5a.
  • the warp threads 4 are stretched towards the compartment 1 and a weft thread 5a is inserted into the compartment.
  • a last weft thread guide 6 which guides the weft thread 5a to be inserted in the warp direction X and in the vertical direction Z.
  • the weft guide 6 may be, for example, a U- or V-shaped guide, as in Fig. 1 represented, act, or even around two transverse guide rods.
  • the weft guide 6 is fixedly mounted on a holder 11 which does not follow the movement of the reed 2.
  • a looper weaving machine which has at least one driven gripper 7 as a weft thread drive, which in the in Fig. 1 Operating phase shown in the tray 1 and the weft 5a in Weft direction Y has pulled into the tray.
  • the present invention can also be used for use on weaving machines with a different weft thread drive, in particular on projectile or air-jet weaving machines.
  • a weft feeder 9 For supplying the weft thread in a transfer area 8 in front of the compartment 4, a weft feeder 9 is provided.
  • the weft feeder 9 is a weft changer with a plurality of movably arranged eye arms 10a-10d, with which at least one of a plurality of weft threads 5a-5d can optionally be fed to the transfer area 8.
  • each eye arm 10a-10d leads in each case one of the weft threads 5a-5d and can optionally be moved into the transfer area 8. The weft thread brought into this area is then taken over by the weft drive and entered into the compartment 1.
  • a yarn quality sensor 12 is stationarily arranged. In the execution after Fig. 1 he is attached to the holder 11.
  • the yarn quality sensor 12 serves to measure the yarn quality. This is to be understood as the measurement of at least one parameter which allows a conclusion to be drawn on a quality feature of the yarn.
  • the yarn quality sensor 12 is configured as a lint sensor, which is able to detect lint adhering to the yarn or possibly also other thickenings.
  • Yarn quality sensor 12 preferably operates without contact, i. he does not touch the weft 5a. This reduces the risk that e.g. at the yarn quality sensor 12 fibers accumulate, which are then entrained by the weft yarn as fluff in the subject.
  • the yarn quality sensor has a frame 13, in which a measuring region 14 is arranged and which has an opening 15 perpendicular to the weft yarn direction Y, through which the Weft 5a can be introduced transversely to the weft direction (Y) in the measuring range 14.
  • the weft 5a which has been brought from the weft feeder 9 in the transfer area 8, from the weft drive, i. from the gripper 7, recorded and guided into the tray. In doing so, it moves in the region of the yarn quality sensor 12 by a certain offset transversely to the weft direction Y, i. in the warp direction X and / or vertical direction Z, and is thus introduced through the opening 15 in the measuring region 14 of the yarn quality sensor 12. Shortly thereafter, and before it touches the frame 13, it comes into contact with the weft guide 6, so that further movement in the warp direction X and / or vertical direction Z is stopped, thus preventing contact of the frame 13.
  • the weft 5a is in the measuring range 14, its quality can be monitored. If it is determined that the measured quality parameter does not satisfy a desired criterion, then e.g. the operation of the loom may be interrupted to remove the faulty shot, or the error may be statistically evaluated, e.g. stop the machine only in case of an accumulation of errors and / or to determine a quality specification for the produced fabric.
  • a desired criterion e.g. the operation of the loom may be interrupted to remove the faulty shot, or the error may be statistically evaluated, e.g. stop the machine only in case of an accumulation of errors and / or to determine a quality specification for the produced fabric.
  • the yarn quality sensor preferably forms a light barrier, with light source and receiver e.g. can be arranged in the frame 13.
  • the weft in the measuring area 14 shadows a portion of the light from the light source, so that the signal at the receiver is reduced accordingly. If the yarn has a thickening, e.g. in the form of a flute or a node, this leads to a momentary strong signal reduction, which can be detected.
  • the measuring region 14 preferably has a smaller dimension in the weft direction Y than in the warp direction X and the vertical direction Z.
  • the small dimension in the weft direction Y also results small imperfections to a strong, well detectable signal, while large dimensions in the warp direction X and vertical direction Z make the detection against transverse movements of the weft thread 5a insensitive.
  • This geometry of the measuring region 14 can be realized by an elongated configuration of the light source and the light receiver in the direction transverse to the weft direction Y and by a sufficiently large distance between the light source and the light receiver.
  • the yarn quality sensor 12 may be constructed in other ways, e.g. as a reflective optical sensor which measures light reflected or scattered by the weft yarn, or as a capacitive sensor in which the yarn cross section is measured without contact by passing weft yarn between two plates of a capacitor.
  • Corresponding sensors are known to those skilled in the art of yarn quality measurement, e.g. at Umspulstationen, known.
  • the yarn quality sensor is disposed between the weft feeder 9 and the weft yarn guide 6. This arrangement is preferred because there is usually a lot of space in this area, especially in rapier looms.
  • the yarn quality sensor 12 can also be integrated directly into the weft thread guide 6.
  • weft yarns of very different thicknesses are used, often only the thickest weft yarn causes problems (fluff). However, if all weft yarns are to be monitored for fluff with different thickness weft yarns, then a different threshold value can be specified for each weft yarn.
  • a loom used with weft changer with which optionally a plurality of weft threads can be entered, it allows the arrangement of the yarn quality sensor 12 between the weft changer and the compartment to monitor the quality of all weft yarns with only one sensor.
  • the yarn quality sensor is preferably arranged after the main nozzle and in front of the compartment.
  • the yarn quality sensor is preferably arranged in front of the compartment in such a way that the projectile traverses the measuring range of the sensor and pulls the weft thread through the measuring area. In this case, e.g. to provide a synchronization with the machine cycle to suppress the error detection during the passage of the projectile through the measuring range.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Quality & Reliability (AREA)
  • Looms (AREA)
EP20080017764 2008-10-10 2008-10-10 Métier à tisser doté d'un capteur de qualité de fil Active EP2175058B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP20080017764 EP2175058B1 (fr) 2008-10-10 2008-10-10 Métier à tisser doté d'un capteur de qualité de fil

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP20080017764 EP2175058B1 (fr) 2008-10-10 2008-10-10 Métier à tisser doté d'un capteur de qualité de fil

Publications (2)

Publication Number Publication Date
EP2175058A1 true EP2175058A1 (fr) 2010-04-14
EP2175058B1 EP2175058B1 (fr) 2011-08-03

Family

ID=40362150

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20080017764 Active EP2175058B1 (fr) 2008-10-10 2008-10-10 Métier à tisser doté d'un capteur de qualité de fil

Country Status (1)

Country Link
EP (1) EP2175058B1 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2012068697A2 (fr) 2010-11-25 2012-05-31 Uster Technologies Ag Procédé et appareil de commande d'un métier à tisser à jet
WO2012068698A2 (fr) 2010-11-25 2012-05-31 Uster Technologies Ag Procédé et appareil de commande d'un métier à tisser à jet
WO2013010278A1 (fr) 2011-07-15 2013-01-24 Uster Technologies Ag Métier à tisser à détecteur de fil dédié, et procédé de mise en œuvre correspondant
EP3165646A3 (fr) * 2015-11-06 2017-06-14 Toyota Industries Corporation Dispositif de mesure de trame pour métier à tisser

Citations (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3603353A (en) * 1968-02-28 1971-09-07 Etag Textilwerke Gmbh Method of and apparatus for weaving without knots
US4559976A (en) * 1982-10-02 1985-12-24 Kabushiki Kaisha Toyoda Jidoshokki Seisakusho Method of preventing a defective weft yarn from being woven in a fabric in a shuttleless loom
JPH03124843A (ja) * 1989-10-05 1991-05-28 Tsudakoma Corp 給糸体の切換わり検出方法
JPH03185155A (ja) * 1989-12-15 1991-08-13 Teijin Ltd 緯糸の結び玉除去方法
US5182457A (en) * 1990-01-12 1993-01-26 Rhone-Poulenc Viscosuisse Sa Device for photo-electrically monitoring a moving yarn using two sensor heads
US5332007A (en) * 1992-03-25 1994-07-26 Lindauer Dornier Gmbh Faulty weft control on air nozzle looms
US5371584A (en) * 1992-01-31 1994-12-06 Gebruder Loepfe Af Apparatus for the detection of contaminants in an elongated textile product
JPH0742069A (ja) 1993-07-30 1995-02-10 Asahi Shiyueebell Kk 毛羽検査装置
US5544679A (en) * 1993-12-01 1996-08-13 Picanol N.V. Defective weft yarn insertion prevention
EP1359108A1 (fr) * 2002-04-30 2003-11-05 Seltec srl Procédé et appareil compact permettant de déceler des défauts du fil, notamment sur des fils chenilles, en cours de fabrication
US20040221912A1 (en) * 2003-03-24 2004-11-11 Sultex Ag Method for weaving low flaw cloths by means of the elimination of weft thread sections which have irregularities
US20040238060A1 (en) * 2001-06-27 2004-12-02 Jerker Hellstroem Yarn processing system and yarn feeding device
EP1544339A1 (fr) * 2003-12-15 2005-06-22 Dirk Benoit Elektronika N.V. Système de détection pour détecter et éviter des noeuds et/ou irrégularités dans des fils de trame d'un tissu
US20060098201A1 (en) * 2004-11-06 2006-05-11 Saurer Gmbh & Co. Kg Yarn sensor
WO2006133833A1 (fr) * 2005-06-15 2006-12-21 Picanol N.V. Procede d'introduction de fils de trame

Patent Citations (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3603353A (en) * 1968-02-28 1971-09-07 Etag Textilwerke Gmbh Method of and apparatus for weaving without knots
US4559976A (en) * 1982-10-02 1985-12-24 Kabushiki Kaisha Toyoda Jidoshokki Seisakusho Method of preventing a defective weft yarn from being woven in a fabric in a shuttleless loom
JPH03124843A (ja) * 1989-10-05 1991-05-28 Tsudakoma Corp 給糸体の切換わり検出方法
JPH03185155A (ja) * 1989-12-15 1991-08-13 Teijin Ltd 緯糸の結び玉除去方法
US5182457A (en) * 1990-01-12 1993-01-26 Rhone-Poulenc Viscosuisse Sa Device for photo-electrically monitoring a moving yarn using two sensor heads
US5371584A (en) * 1992-01-31 1994-12-06 Gebruder Loepfe Af Apparatus for the detection of contaminants in an elongated textile product
US5332007A (en) * 1992-03-25 1994-07-26 Lindauer Dornier Gmbh Faulty weft control on air nozzle looms
JPH0742069A (ja) 1993-07-30 1995-02-10 Asahi Shiyueebell Kk 毛羽検査装置
US5544679A (en) * 1993-12-01 1996-08-13 Picanol N.V. Defective weft yarn insertion prevention
US20040238060A1 (en) * 2001-06-27 2004-12-02 Jerker Hellstroem Yarn processing system and yarn feeding device
EP1359108A1 (fr) * 2002-04-30 2003-11-05 Seltec srl Procédé et appareil compact permettant de déceler des défauts du fil, notamment sur des fils chenilles, en cours de fabrication
US20040221912A1 (en) * 2003-03-24 2004-11-11 Sultex Ag Method for weaving low flaw cloths by means of the elimination of weft thread sections which have irregularities
EP1544339A1 (fr) * 2003-12-15 2005-06-22 Dirk Benoit Elektronika N.V. Système de détection pour détecter et éviter des noeuds et/ou irrégularités dans des fils de trame d'un tissu
US20060098201A1 (en) * 2004-11-06 2006-05-11 Saurer Gmbh & Co. Kg Yarn sensor
WO2006133833A1 (fr) * 2005-06-15 2006-12-21 Picanol N.V. Procede d'introduction de fils de trame

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2012068697A2 (fr) 2010-11-25 2012-05-31 Uster Technologies Ag Procédé et appareil de commande d'un métier à tisser à jet
WO2012068698A2 (fr) 2010-11-25 2012-05-31 Uster Technologies Ag Procédé et appareil de commande d'un métier à tisser à jet
WO2013010278A1 (fr) 2011-07-15 2013-01-24 Uster Technologies Ag Métier à tisser à détecteur de fil dédié, et procédé de mise en œuvre correspondant
CN103649394A (zh) * 2011-07-15 2014-03-19 乌斯特技术股份公司 一种具有分配纱线传感器的织机和用于其操作的方法
CN103649394B (zh) * 2011-07-15 2015-11-25 乌斯特技术股份公司 一种具有分配纱线传感器的织机和用于其操作的方法
EP3165646A3 (fr) * 2015-11-06 2017-06-14 Toyota Industries Corporation Dispositif de mesure de trame pour métier à tisser

Also Published As

Publication number Publication date
EP2175058B1 (fr) 2011-08-03

Similar Documents

Publication Publication Date Title
EP1953282B1 (fr) Procédé et dispositif destinés à l'introduction d'un fil de trame pour une machine à tisser
DE102008008211B4 (de) Verfahren und Strickmaschine zur Herstellung einer Maschenware aus einem ungedrehten Fasermaterial
EP2175058B1 (fr) Métier à tisser doté d'un capteur de qualité de fil
EP0562230A1 (fr) Procédé et dispositif pour la fabrication d'un tissu, particulièrement un tissu sans noeuds, sur un métier à jet d'air
WO2003038171A1 (fr) Systeme de traitement de fils
EP2266908A2 (fr) Procédé et dispositif destinés à la détermination sans contact de valeurs de la force de traction de fils
EP1270780A2 (fr) Dispositif pour détecter la casse de fils de tour dans un métier à tisser et métier à tisser, notamment avec des lames et un dispositif de détection de la casse de fils
DE2828370C2 (de) Verfahren und Vorrichtung zum Erfassen eines fehlerhaften Eintrags eines Schußfadens bei einer Webmaschine
EP0816545A1 (fr) Dispositif de détection d'une insertion de trame défecteueuse sur un métier à tisser à griffes
CZ2019196A3 (cs) Způsob bezdotykové optické detekce příze na pracovním místě textilního stroje pro výrobu příze, optický snímač příze a textilní stroj
CH698212A2 (de) Verfahren und Vorrichtung zur optischen Bewertung der Qualität eines längsbewegten Faserstranges.
DE19521100C1 (de) Kontrollierte Absaugung an Webmaschinen
DE2509558A1 (de) Verfahren und vorrichtung zur kontrolle des schusseintrags eines webstuhls
EP2462268B1 (fr) Procédé et dispositif de contrôle de l'arrivée du fil lors de l'insertion de différents fils de trame dans un métier à tisser
DE3117751A1 (de) Verfahren und vorrichtung zur erfassung der betriebsbedingungen bei einem webstuhl
DE19716587C1 (de) Verfahren zur Funktionsüberwachung eines Schußfadenwächters in Luftdüsenwebmaschinen
EP1099784B1 (fr) Métier à tisser avec système d'insertion pour une pluralité de fils de trame en règle générale différents
DE4213842A1 (de) Verfahren und einrichtung zur ueberwachung der funktion der nadeln einer textilmaschine
EP1350878B1 (fr) Procédé pour surveiller le fil de trame dans un métier à tisser
WO2017194730A1 (fr) Dispositif et procédé de contrôle de foule sur la base d'images
CH711314A2 (de) Schiffchenstickmaschine mit Messvorrichtung zur Überwachung der Fadenspannung des Nadelfadens und Verfahren hierzu.
EP1502979B1 (fr) Procédure de contrôle de fil de trame dans un métier à tisser
Patil et al. Denim weaving-control of fabric defects
EP0670384A1 (fr) Détection des pertes de fil sur métier à tisser à projectiles
JP2519916B2 (ja) 給糸体の判別交換方法

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

Kind code of ref document: A1

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MT NL NO PL PT RO SE SI SK TR

AX Request for extension of the european patent

Extension state: AL BA MK RS

17P Request for examination filed

Effective date: 20100923

AKX Designation fees paid

Designated state(s): BE CH DE IT 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 IT LI SE

REG Reference to a national code

Ref country code: CH

Ref legal event code: NV

Representative=s name: E. BLUM & CO. AG PATENT- UND MARKENANWAELTE VSP

Ref country code: CH

Ref legal event code: EP

REG Reference to a national code

Ref country code: DE

Ref legal event code: R096

Ref document number: 502008004357

Country of ref document: DE

Effective date: 20111006

REG Reference to a national code

Ref country code: SE

Ref legal event code: TRGR

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: 20120504

REG Reference to a national code

Ref country code: DE

Ref legal event code: R097

Ref document number: 502008004357

Country of ref document: DE

Effective date: 20120504

REG Reference to a national code

Ref country code: DE

Ref legal event code: R082

Ref document number: 502008004357

Country of ref document: DE

Representative=s name: SCHUMACHER & WILLSAU PATENTANWALTSGESELLSCHAFT, DE

P01 Opt-out of the competence of the unified patent court (upc) registered

Effective date: 20230513

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

Ref country code: SE

Payment date: 20231023

Year of fee payment: 16

Ref country code: IT

Payment date: 20231030

Year of fee payment: 16

Ref country code: DE

Payment date: 20231030

Year of fee payment: 16

Ref country code: CH

Payment date: 20231102

Year of fee payment: 16

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

Ref country code: BE

Payment date: 20231023

Year of fee payment: 16