EP1082478B1 - Pince et dispositif d'insertion de duite destine a une machine a tisser a pince - Google Patents

Pince et dispositif d'insertion de duite destine a une machine a tisser a pince Download PDF

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Publication number
EP1082478B1
EP1082478B1 EP99906007A EP99906007A EP1082478B1 EP 1082478 B1 EP1082478 B1 EP 1082478B1 EP 99906007 A EP99906007 A EP 99906007A EP 99906007 A EP99906007 A EP 99906007A EP 1082478 B1 EP1082478 B1 EP 1082478B1
Authority
EP
European Patent Office
Prior art keywords
gripper
actuator
force
clamping part
thread
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.)
Expired - Lifetime
Application number
EP99906007A
Other languages
German (de)
English (en)
Other versions
EP1082478A1 (fr
Inventor
Francisco Speich
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.)
Textilma AG
Original Assignee
Textilma AG
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 Textilma AG filed Critical Textilma AG
Publication of EP1082478A1 publication Critical patent/EP1082478A1/fr
Application granted granted Critical
Publication of EP1082478B1 publication Critical patent/EP1082478B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • D03D47/12—Looms in which bulk supply of weft does not pass through shed, e.g. shuttleless looms, gripper shuttle looms, dummy shuttle looms wherein single picks of weft thread are inserted, i.e. with shedding between each pick
    • D03D47/20—Constructional features of the thread-engaging device on the inserters
    • D03D47/23—Thread grippers
    • 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
    • D03D47/12—Looms in which bulk supply of weft does not pass through shed, e.g. shuttleless looms, gripper shuttle looms, dummy shuttle looms wherein single picks of weft thread are inserted, i.e. with shedding between each pick
    • D03D47/20—Constructional features of the thread-engaging device on the inserters

Definitions

  • the invention relates to a gripper for a Rapier weaving machine according to the preamble of the claim 1 and a weft insertion device with a gripper.
  • a gripper is used to guide the weft thread through the shed or a rapier and rapier gripper is used, the weft thread being transferred from the rapier gripper to the rapier rapier within the shed.
  • the grippers have thread clamps, which in the first-mentioned embodiment are controlled outside the shed and in the second embodiment inside the shed positively, that is to say, forcibly.
  • Mechanical or electromechanical means are used for this purpose, the actuating element for opening or closing the thread clamp being arranged outside or below the shed. In particular with thread transfer within the shed, this essentially results in the following disadvantages.
  • the trigger magnet must be placed outside the shed.
  • the air gap between the armature and the magnetic core thus becomes large, as a result of which a higher field strength must be generated, ie a winding with a higher ampere number of turns is required. Since this release magnet can be switched sluggishly, the speed of the weaving machine is reduced.
  • the clamping force is due to the type of thread predetermined. With the mechanical as well as with the Electromechanical control of the thread clamp are therefore adjust the clamping force accordingly. For weaving with Different types of thread prove to be such Controls at least restrictive because on the one hand an average clamping force was determined by means of tests must be and on the other hand an adjustment of the Clamping force during the operation of the weaving machine and in particular along the path between the actuators not possible and is therefore not provided.
  • the object of the invention is a gripper of the type mentioned to improve to avoid the disadvantages described.
  • the task is characterized by the features of the claim 1 solved.
  • this opening process can also be done again in two stages, initially by switching off the clamping force on the actuator so that the Weft only by the clamping force of the movable Clamping part is obtained and then further by additional Apply a release force that the movable clamping part from fixed clamp part lifts off and a gap for cleaning releases.
  • the thread clamp of the hook is replaced by one in the hook arranged actuator positively controlled, i.e. without from external forces, so that any load on the Rapier head, the rapier guide and the warp threads is avoided. Subsequent adjustments and Repairs to the gripper elements largely. It will Warp thread breaks avoided, reducing operating costs be significantly reduced and web performance significantly is increased.
  • the thread clamp can during the Operation of the weaving machine and within a weaving cycle by the shot of the physical and technical web data of the weft thread to be entered is influenced accordingly become.
  • the setpoint of the The clamping force of the thread clamp is set and regulated.
  • the thread clamps for the bringer and holster are formed substantially similar, which makes the Actuation of the actuators using the same Control device takes place. This will make the Manufacturing costs significantly reduced. Through the Use of transformers to actuate the Thread clamp becomes a force on the hook avoided. Because of these measures, one is possible Rapier weaving machine with up to 1000 revolutions per minute with simultaneous processing of different Yarns like zero twist or pimple yarn.
  • the gripper contains a housing 1, an electromagnet 2 and a thread clamp 3.
  • the housing 1 consists of a Base body 4 and a cover 5, which means not represented means are interconnected.
  • the Electromagnet 2 is arranged on the one hand on the base body.
  • the thread clamp 3 comprises a clamping lever 6, which as Two-armed lever designed and on an axis 7 is arranged pivotably and one on the base body 4 trained clamping surface 8.
  • a lever arm has one Clamping section 9, which is connected to the base body 4 trained clamping surface interacts and at the free End an angled section 10 together with the main body an inlet gap for a weft (not shown) forms.
  • connection section 11 On the inlet side of the The end facing away from the gripper is on the base body 4 Connection section 11 for a transport unit educated. Furthermore, a spring 12 is provided around the Bias clamping section 9 against the clamping surface 8. The gripper is also with a stop member 15 for the Equipped weft.
  • a linear motor or a servo motor To generate the translational movement to operate the clamping lever can use a linear motor or a servo motor become. If such drive means are used, then is the clamping lever with the drive axis of the Motors coupled.
  • the gripper contains a housing 21, a thread clamp 22 and a piezo quartz element 23.
  • the housing consists of a base body 24 and a cover part 25.
  • Die Thread clamp comprises a strip-shaped clamping part 26, which consists of a resilient material and one formed on the base body 24 clamping section 17.
  • Der Clamping part 26 is at one end on the base body 24 attached and angled at the other end Provide section 27, one with the base body Inlet gap for a weft thread, not shown forms.
  • the clamping part 26 is with a shoulder 28 and provided a pin 29 which projects transversely to the neck.
  • the Piezo quartz element 23 is on the one hand on the base body attached and on the other hand with a coupling part 30th provided, which is engaged with the pin 29. To the The end facing away from the inlet side of the gripper is at Base body 24 of the connection section 11 for the Transport unit trained.
  • the embodiment according to the invention shown in FIG. 3 differs from that of Fig. 1 by the Training and arrangement of the electromagnet.
  • the gripper includes a housing 31, a thread clamp 32 and one Electromagnet 33.
  • the housing consists of a Base body 34 and a cover 35.
  • the thread clamp 32 does not include a management body 36 for one shown weft and a clamping part 37.
  • Das Guide member 36 is strip-shaped and has an angled section 38.
  • the clamping part 37 is also strip-shaped and has one angled section 39.
  • the clamping part on the Guide part arranged so that the angled section 38, 39 a V-shaped Inlet gap for a weft thread, not shown form.
  • the electromagnet 33 has a U-shaped core - 43-and a winding 40- and is below the Guide part arranged so that the guide part on rest on the end faces of the legs of the core.
  • the guide part 36 consists of magnetically non-conductive material during the clamping part 37 forms the magnet armature and made of magnetically conductive Material exists.
  • the base body 34 also has the Connection section 11 for the transport unit. Instead of the stop organ is with this Embodiment provided a stop bracket 41.
  • the actuator is actuated by induction.
  • This is a primary induction coil 70 which is outside the Gripper is arranged and a secondary Induction coil 71 provided in the housing 1,21,31 des Gripper is arranged.
  • a Power converter and amplifier 72 arranged over Connection lines 52 are connected to the actuator.
  • 25 35 is an opening 75 in each case intended.
  • FIG. 5 is referred to.
  • the following The embodiment according to FIG. 2 is described based.
  • the figure shows a diagram with an abscissa for the angle of rotation of the main shaft of the weaving machine and with an ordinate for the clamping force.
  • As the figure shows are dependent on the angle of rotation for the thread clamp three operating positions defined, namely hold A, Terminals A + B and ventilation A-C. Every operating position is assigned a force A, B, C.
  • the holding force A is applied exclusively by the resilient element 26 and also acts when the weaving machine and the actuator are switched off first inserted into the open thread clamp and then with the clamping force B generated by the actuator applied.
  • the weft thread is clamped with a force which is the sum of the forces A + B.
  • the Clamping force B is continuously adjustable up to the maximum, to safely avoid weft losers.
  • the actuators become grabbers Control program reversed so that a ventilating force is generated, which is the difference of the forces A-C.
  • the in Blown out thread clamp located in the ventilation position become. The above process applies to the Bring gripper and also for the hand gripper contrary cycle.
  • FIG. 6 shows a weft insertion device with a Bring gripper 61, a Holger gripper 62, one Transport unit 64, which the Bringer- or the Holer rapier each over the middle 63 of the weaving width promoted and a device for operating the Actuators.
  • the transport unit 64 is a gripper belt 66 with a guide 69 and a belt wheel 67, which with a Drive means, not shown, is drive-connected.
  • the gripper belt is made of a flexible material, e.g. Plastic composite.
  • the facility for Actuating the actuators is in the area of Thread transfer above the formed shed and is arranged on both sides of the center 63.
  • the facility contains two air transformers or converters, which one a primary induction coil 70 and that on the gripper 61, 62 arranged secondary induction coil 71 includes and a control device 65, each via lines 68 connected to the primary inductor 70 to the primary induction coils depending on the Angle of rotation of the main shaft of the weaving machine and / or the to control textile or web technical data.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Looms (AREA)
  • Auxiliary Weaving Apparatuses, Weavers' Tools, And Shuttles (AREA)
  • Treatment Of Fiber Materials (AREA)
  • Preliminary Treatment Of Fibers (AREA)

Claims (7)

  1. Griffe pour une machine à tisser à griffes, comportant un boítier (1, 21, 31) avec une pièce de fixation (11) sur une bande ou lance de métier à tisser (66), un pince fil (3, 22, 32) comportant une partie fixe (8, 17, 36) et une partie mobile (6, 26, 37), un actionneur à commande électrique (2, 23, 33) logé dans le boítier et coopérant dans le sens de l'entraínement avec la partie mobile pour commander la force de pincement et le cycle de pincement du pince-fil,
    caractérisée en ce que
    la partie mobile (6, 26, 37) est précontrainte contre la partie fixe (8, 17, 36) par une force de fixation (A) et
    l'actionneur (2, 23, 33) peut être commuté entre une force de pincement (B) agissant dans la direction de la force de maintien (A) et une force de desserrage (C) s'opposant à la force de maintien (A), cette force de desserrage étant supérieure à la force de maintien (A),
    la force de pincement (B) étant réglable de manière continue.
  2. Pince selon la revendication 1,
    caractérisée en ce que
    l'actionneur est un électroaimant (2, 33).
  3. Pince selon la revendication 1,
    caractérisée en ce que
    l'actionneur est un élément piézo-électrique (23).
  4. Pince selon la revendication 1,
    caractérisé en ce que
    l'actionneur est un moteur linéaire ou un moteur pas à pas.
  5. Pince selon l'une des revendications 1 à 4,
    caractérisé en ce que
    l'actionneur (2, 23, 33) est relié à une bobine d'induction secondaire (71) destinée à coopérer avec une bobine d'induction primaire (70) installée à l'extérieur de la pince et appartenant à une installation (65) pour manoeuvrer l'actionneur (2, 23, 33).
  6. Dispositif d'insertion de fils de trame dans une machine à tisser à griffes comportant une unité de transport (64) pour une griffe d'insertion (61) et une griffe de prise (62) pour déplacer les griffes en translation suivant un mouvement de va et vient ainsi qu'une griffe selon l'une des revendications 1 à 5,
    caractérisé par
    une installation (65, 68, 70, 71) pour actionner l'actionneur (2, 23, 33) et une installation de commande (65) pour commander l'actionneur (2, 23, 33) en fonction de l'angle de rotation de l'arbre principal et/ou des données de techniques de tissage et de textiles.
  7. Dispositif selon la revendication 6,
    caractérisé en ce que
    l'installation de commande (65) comporte un microprocesseur pour commander l'actionneur selon le procédé à boucle ouverte ou à boucle fermée.
EP99906007A 1998-05-18 1999-03-08 Pince et dispositif d'insertion de duite destine a une machine a tisser a pince Expired - Lifetime EP1082478B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE29808997U 1998-05-18
DE29808997U DE29808997U1 (de) 1998-05-18 1998-05-18 Greifer und eine Schusseintragvorrichtung für eine Greiferwebmaschine
PCT/CH1999/000104 WO1999060193A1 (fr) 1998-05-18 1999-03-08 Pince et dispositif de duite destine a une machine a tisser a pince

Publications (2)

Publication Number Publication Date
EP1082478A1 EP1082478A1 (fr) 2001-03-14
EP1082478B1 true EP1082478B1 (fr) 2004-07-14

Family

ID=8057365

Family Applications (1)

Application Number Title Priority Date Filing Date
EP99906007A Expired - Lifetime EP1082478B1 (fr) 1998-05-18 1999-03-08 Pince et dispositif d'insertion de duite destine a une machine a tisser a pince

Country Status (14)

Country Link
US (1) US6305434B1 (fr)
EP (1) EP1082478B1 (fr)
JP (2) JP2002515553A (fr)
KR (1) KR100592469B1 (fr)
CN (1) CN1193122C (fr)
AU (1) AU2606999A (fr)
BR (1) BR9910541B1 (fr)
CA (1) CA2328936C (fr)
DE (2) DE29808997U1 (fr)
ES (1) ES2224605T3 (fr)
HK (1) HK1035216A1 (fr)
RU (1) RU2208073C2 (fr)
TR (1) TR200003401T2 (fr)
WO (1) WO1999060193A1 (fr)

Families Citing this family (31)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE29808997U1 (de) * 1998-05-18 1998-07-30 Textilma Ag, Hergiswil Greifer und eine Schusseintragvorrichtung für eine Greiferwebmaschine
EP0984089B1 (fr) * 1998-09-02 2003-12-10 Sultex AG Procédé et dispositif pour l'insertion d'un fil de trame dans un métier à tisser à griffes
DE59908000D1 (de) * 1998-09-02 2004-01-22 Sultex Ag Rueti Verfahren und System zum Eintragen eines Schussfadens in einer Greiferwebmaschine
FR2783842A1 (fr) * 1998-09-30 2000-03-31 Icbt Diederichs Sa Dispositif pour l'insertion du fil de trame
DE19852794B4 (de) * 1998-11-16 2004-03-25 Lindauer Dornier Gmbh Steuerbare Schussfadenzubringer- und -klemmvorrichtung für Webmaschinen
DE29908543U1 (de) 1999-05-14 1999-08-12 Lindauer Dornier Gmbh, 88131 Lindau Steuereinrichtung zur Betätigung des Klemmhebels eines Greifers, insbesondere eines Nehmergreifers in Greiferwebmaschinen
DE10124151C1 (de) * 2001-05-17 2003-03-27 Dornier Gmbh Lindauer Schussfadengreifer für eine Greiferwebmaschine
JP2005503494A (ja) * 2001-09-17 2005-02-03 ピービーティー（アイピー）リミテッド 反転連結および電気光学的同期を組み込んだ高速糸送りシステム
ATE410534T1 (de) * 2002-02-25 2008-10-15 Gividi Italia Spa Fadenklemme für einen greifer in einer greiferwebmaschine
US7543610B2 (en) 2006-06-16 2009-06-09 Sultex Ag Thread clamp for a rapier head
DE50213973D1 (de) * 2002-09-20 2009-12-10 Picanol Nv Gebergreifer für eine greiferwebmaschine
DE10247375A1 (de) * 2002-10-10 2004-05-06 Lindauer Dornier Gmbh Verfahren zur gesteuerten Öffnungsbewegung der Fadenklemme eines Schussfadengreifers in Webmaschinen und Schussfadengreifer
DE10252053A1 (de) * 2002-11-08 2004-06-09 Lindauer Dornier Gmbh Verfahren zum Steuern von Komponenten eines Arbeitsmittels in Webmaschinen und Webmaschine zur Verfahrensdurchführung
EP1549794A2 (fr) * 2002-10-10 2005-07-06 Lindauer Dornier Gesellschaft M.B.H Procede pour commander des elements d'un organe de travail dans des metiers a tisser et metier a tisser pour realiser ce procede
KR100498003B1 (ko) * 2004-10-21 2005-07-01 대흥정밀공업 주식회사 관성력과 위사장력을 이용한 레피어직기용 레피어 및 그리퍼
EP1806443B1 (fr) * 2006-01-06 2009-02-11 Sultex AG Pince d'amenée pour métier à tisser à pince
EP1811068B1 (fr) * 2006-01-24 2009-06-17 Sultex AG Frein de trame avec commande
US20080018176A1 (en) * 2006-05-26 2008-01-24 Sultex Ag Power supply for a rapier head
EP1860216A1 (fr) * 2006-05-26 2007-11-28 Sultex AG Source d'alimentation pour une griffe
EP1867766A1 (fr) * 2006-06-16 2007-12-19 Sultex AG Pince-fil pour une tête de préhension
EP1918437A1 (fr) * 2006-11-02 2008-05-07 Sultex AG Procédé et dispositif pour l'insertion du fil de trame
CN101352797B (zh) * 2008-06-27 2012-02-15 廖军艺 一种地毯织机的夹线夹制作方法
DE102009037127A1 (de) * 2009-08-11 2011-02-17 Lindauer Dornier Gmbh Greiferkopf einer Webmaschine
BE1019271A3 (nl) * 2010-04-02 2012-05-08 Picanol Nv Aandrijving en werkwijze voor het aandrijven van grijperdragers.
EP2388361A1 (fr) * 2010-05-18 2011-11-23 Textilma AG Poignée et dispositif d'entrée de fils de trame pour un métier à tisser à pince
DE102010044127B3 (de) * 2010-11-18 2011-12-29 Lindauer Dornier Gesellschaft Mit Beschränkter Haftung Greiferkopf zum Eintrag von Schussfäden an einer Greiferwebmaschine sowie eine Greiferwebmaschine mit einem derartigen Greiferkopf
CN103562454B (zh) * 2011-05-27 2015-12-09 三菱丽阳株式会社 纺织机和使用该纺织机的纺织方法
CN103320943B (zh) * 2013-07-18 2015-07-22 南京海拓复合材料有限责任公司 一种适用于无弯曲织物织造的夹头
CN110209069B (zh) * 2019-06-28 2020-03-31 武汉纺织大学 一种磁悬浮片梭精密引纬控制方法及系统、信息处理终端
EP3916140B1 (fr) 2020-05-26 2023-10-18 STÄUBLI BAYREUTH GmbH Lance, procédé de dessin dans un fil de trame avec une telle lance et tissu de tissage comprenant une telle lance
KR102562449B1 (ko) 2021-12-13 2023-08-02 일성기계공업 주식회사 위사 운반용 캐리어

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Publication number Priority date Publication date Assignee Title
DE1956553C3 (de) * 1967-04-04 1974-08-01 Lindauer Dornier Gmbh, 8990 Lindau Schußfadeneintragvorrichtung für schützenlose Webmaschinen
FR2214774B1 (fr) * 1973-01-22 1976-05-14 Saurer Diederichs Sa
GB2059455A (en) * 1979-09-29 1981-04-23 Northrop Weaving Machinery Ltd Improvements in or relating to looms with stationary weft supply
BE1000703A4 (nl) * 1987-06-29 1989-03-14 Picanol Nv Draadklem.
DE59306886D1 (de) * 1993-05-12 1997-08-14 Rueti Ag Maschf Fadenhalter für einen Bringergreifer und Greiferwebmaschine mit Fadenhalter
JPH07331558A (ja) * 1994-06-06 1995-12-19 Toyota Autom Loom Works Ltd レピア織機における緯入れ方法及び装置
CN1216586A (zh) * 1996-04-19 1999-05-12 皮克诺尔公司 一种织机的片梭的片梭夹钳的打开装置
DE29808997U1 (de) * 1998-05-18 1998-07-30 Textilma Ag, Hergiswil Greifer und eine Schusseintragvorrichtung für eine Greiferwebmaschine

Also Published As

Publication number Publication date
EP1082478A1 (fr) 2001-03-14
DE59909965D1 (de) 2004-08-19
CN1301315A (zh) 2001-06-27
WO1999060193A1 (fr) 1999-11-25
TR200003401T2 (tr) 2001-03-21
CA2328936A1 (fr) 1999-11-25
ES2224605T3 (es) 2005-03-01
HK1035216A1 (en) 2001-11-16
AU2606999A (en) 1999-12-06
JP2007113171A (ja) 2007-05-10
DE29808997U1 (de) 1998-07-30
CA2328936C (fr) 2006-11-21
RU2208073C2 (ru) 2003-07-10
JP2002515553A (ja) 2002-05-28
KR20010043680A (ko) 2001-05-25
CN1193122C (zh) 2005-03-16
US6305434B1 (en) 2001-10-23
KR100592469B1 (ko) 2006-06-22
BR9910541A (pt) 2001-01-30
BR9910541B1 (pt) 2009-01-13

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