EP1806443A1 - Pince d'amenée pour métier à tisser à pince - Google Patents

Pince d'amenée pour métier à tisser à pince Download PDF

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Publication number
EP1806443A1
EP1806443A1 EP06126596A EP06126596A EP1806443A1 EP 1806443 A1 EP1806443 A1 EP 1806443A1 EP 06126596 A EP06126596 A EP 06126596A EP 06126596 A EP06126596 A EP 06126596A EP 1806443 A1 EP1806443 A1 EP 1806443A1
Authority
EP
European Patent Office
Prior art keywords
rapier
guiding
thread
guide
weft 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.)
Granted
Application number
EP06126596A
Other languages
German (de)
English (en)
Other versions
EP1806443B1 (fr
Inventor
Marcel Christe
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.)
Itema Switzerland Ltd
Original Assignee
Sultex 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 Sultex AG filed Critical Sultex AG
Priority to EP06126596A priority Critical patent/EP1806443B1/fr
Publication of EP1806443A1 publication Critical patent/EP1806443A1/fr
Application granted granted Critical
Publication of EP1806443B1 publication Critical patent/EP1806443B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • D03D47/233—Carrying grippers

Definitions

  • the invention relates to a rapier for a rapier with a thread clamp for clamping at least one weft thread, and a method for guiding and holding a weft thread in a Bringergreifer according to the preamble of claim 8 and a loom with such Bringergreifer and for carrying out such a method.
  • rapier weaving the weft thread is registered by means of a fixed to a rod or a flexible belt rapier in a shed and taken over at a transfer point in the middle part of the shed by a gripper rapier and forwarded.
  • the bringer rapier has the task to capture the presented weft thread, enter it into the shed and deliver it precisely to the gripper.
  • a rapier which contains a thread guide formed therein and a thread clamp, is for example in the publication EP 0 441 099 A1 disclosed.
  • the rapier grippers are moved at high speed during weft insertion. From this high speed, the Bregergreifer must be braked so that the weft thread can be taken over at the transfer point by the gripper rapier. Due to the inertia of the weft thread, it may happen that the weft thread continues to move at the transfer point, so that the piece of thread to be taken over by the gripper gripper leaves its intended position and the gripper rapier does not leave the weft thread can take. To reduce such weft defects, a controlled yarn brake can be provided on the entry side in the area of the yarn feeding devices, which brakes the leading weft yarn.
  • the object of the invention is to provide a rapier for a rapier loom and a method for guiding and holding a weft thread in a Bringergreifer available, which prevent a pre-run of the weft thread at the transfer point, and which make it possible to guide the weft such that he can be safely taken over by a gripper grab.
  • the inventive rapier for a rapier loom comprises a thread clamp for clamping at least one weft thread.
  • the bringer rapier comprises a guiding and / or holding device for guiding and / or holding the weft thread with a guiding and / or holding element and a mass, wherein the guiding and / or holding element by means of inertial forces, which in accelerating or decelerating the Bregergreifers act on the mass, taxable and / or movable.
  • the guiding and / or holding element and / or the mass are arranged movably on the rapier.
  • the thread clamp and the guiding and / or holding element are arranged at a distance from one another, so that the weft thread can be guided and / or held on both sides of the gripper rapier during the transfer to a gripper rapier.
  • the rapier comprises two side walls, wherein the thread clamp is arranged in the vicinity of the one side wall and the guiding and / or holding element in the vicinity of the second side wall.
  • the guide and / or holding element is resiliently mounted or mounted or connected to a spring element and the mass arranged on the guide and / or holding element, and in an additional preferred embodiment, the guiding and / or holding element designed as a movably mounted pawl, wherein the mass may be part of the pawl, so that it is movable by the inertia of their own mass.
  • the guiding and / or holding element is designed and arranged such that the weft thread can be held by the same in a notch formed in the rapier, in particular in an upper part of the rapier.
  • the invention comprises a method for guiding and holding a weft thread in a Bringergreifer in which the weft thread is received by the Bringergreifer and clamped by a thread clamp in the same, wherein the weft thread in the Bringergreifer additionally guided by means of a guiding and / or holding device and / or held, which is controlled and / or moved by the inertia of a mass.
  • the guide and / or holding device is closed by the inertia of the mass before reaching the transfer point, so that the weft thread extends upon reaching the transfer point between thread clamp and guiding and / or holding device, and extending between thread clamp and guiding and / or holding device extending weft thread taken over by a gripper rapier.
  • the invention comprises a rapier loom with a Bringergreifer according to one of the embodiments described above and / or equipped for carrying out a method according to the above description.
  • the inventive rapier and the inventive method for guiding and holding a weft thread in a Bringergreifer have the advantage that thanks to the additional, controllable by inertial forces guiding and / or holding device in the yarn transfer from Bringergreifer on the gripper rapier high reliability can be achieved.
  • This is particularly important for fast weft insertion, for example, at 350 rounds / min or 500 rounds / min. and higher. If a pre-run of the weft thread occurs, this happens outside the thread transfer area, so that the pre-run hardly occurs disturbing in the yarn transfer. Thanks to the additional guiding and / or holding device, the weft thread at the yarn transfer must be braked at most minimally, so that most weft threads can be entered without controlled thread brake.
  • weft thread can be fixed more firmly in the slave clamp, as is ensured by the holder of the weft thread on both sides of the slave clamp, the necessary thread tension on both sides. Another advantage is that the risk is low that the weft thread is overstretched when hanging on the gripper rapier, since the ground voltage can be kept low.
  • Fig. 1 shows an embodiment of a Bringergreifers according to the present invention together with a slave gripper 2 in an oblique view.
  • the weft insertion direction is marked in FIG. 1 with an arrow 12.
  • the gripper rapier 1 comprises a thread clamp 4 for clamping at least one weft thread and additionally a guiding and / or holding device 10 for guiding and / or holding the weft thread with a guiding and / or holding element 5 and a mass 6, wherein the guide - And / or holding element 5 by means of inertial forces, which act on an acceleration or deceleration of the rapier 1 on the mass 6, taxable and / or is movable.
  • the guiding and / or holding element 5 and / or the mass 6 are arranged movably on the rapier.
  • the design and mode of operation of the guiding and / or holding device 10 will be discussed in more detail in connection with the description of FIGS. 2A, 2B and 3A, 3B.
  • the bringer rapier 1 comprise further parts, for example, as shown in Fig. 1, two Side walls 1a, 1b and, if necessary, a top 9.
  • the top can, as shown, be provided with a notch 8, in which the weft thread can be inserted to guide this during the entry.
  • the guide and / or holding member 5 may be secured to the upper part 9, for example by means of a fastening element 7, which may be designed, for example, as a screw.
  • the thread clamp 4 and the guiding and / or holding element 5 are spaced apart from each other, so that the weft thread is guided or held on the transfer of the gripper rapier 2 on both sides of the gripper rapier.
  • the rapier 1 comprises two side walls 1a, 1b, the thread clamp can be arranged for example in the vicinity of the one side wall and the guiding and / or holding element in the vicinity of the second side wall.
  • Fig. 2A shows an enlarged oblique view of the same embodiment with inserted weft and opened guide and / or holding device.
  • the rapier 1 comprises a thread clamp 4 and additionally a guiding and / or holding device 10, which is arranged at a distance from the thread clamp.
  • the guide and / or holding device 10 includes in this embodiment, a guide and / or holding element 5, which is resilient, for example in an advantageous embodiment as a bending spring, which is attached at one end to the rapier, for example with a fastener 7 at one Upper part 9 of the rapier.
  • the other end of the guide and / or holding element 5 and the bending spring is free and in the position shown in Fig.
  • the guiding and / or holding device 10 includes a mass 6. This may for example consist of the mass of the spring element 5, or if this is too light, from an additional mass which is arranged on the spring element.
  • a particular advantage of this embodiment is that the free end of the guiding and / or holding element 5 can be moved without friction.
  • the Bregergreifer shown in Fig. 2B differs from that shown in Fig. 2A only by the position of the guide and / or holding member 5.
  • the free end of the formed as a bending spring guide and / or holding member 5 is in Fig. 2B in the direction deflected to a laterally arranged in the rapier 1 notch 8 out so that the free end closes the notch, for example, by the guide and / or holding member 5 touches one side of the notch or protrudes beyond the one side.
  • An inserted into the notch weft thread 3 is thus included, even if the running outside of the bringer rapier piece of thread, as indicated in Fig. 2B by a forward loop, precedes the Bringergreifer.
  • the guide and / or holding element 5 thus forms together with the notch 8 a guide eye.
  • the guide and / or holding element 5 z. B. also be formed as part of a thread clamp.
  • Fig. 3A shows an oblique view of a second embodiment with inserted weft and opened guide and / or holding device.
  • the Bringergreifer 1 comprises a thread clamp 4 and in addition a guide and / or holding device 10, which is arranged at a distance from the thread clamp.
  • the guide and / or holding device 10 includes in this embodiment, a movably mounted pawl 5, which is for example mounted pivotably about a bearing element 5a. Further, a stop 5b may be provided to limit the rotational movement when opening the pawl.
  • the pawl shown comprises a closing part, which in the position shown in FIG.
  • the pawl 5 has its own mass, which is sufficient to overcome the bearing friction, so that the pawl during acceleration and deceleration of the rapier is movable by the force acting on the mass inertial forces.
  • the pawl may additionally be connected to a spring element, for example to keep the pawl 5 open during slow movements of the rapier.
  • the Bregergreifer shown in Fig. 3B differs from that shown in Fig. 3A only by the position of the pawl 5.
  • the pawl shown comprises a closing part, which is pivoted in Fig. 2B towards a laterally arranged in the rapier 1 notch 8 out in that the closing part closes the notch, for example by touching one side of the notch or protruding beyond the one side. An inserted into the notch weft thread 3 is thus included, even if the running outside the bringer thread piece of thread over the bringer rapier precedes.
  • the closing part of the pawl 5 forms together with the notch 8 a guide eye.
  • the weft thread 3 is received by the bringer rapier 1 and clamped by means of a thread clamp 4 in the same.
  • the presented weft thread can be taken, for example, at the beginning of the weft insertion by the Bringergreifer, wherein the weft thread is pulled by the forward movement of the Bringergreifers in the thread clamp and clamped in this.
  • the same When receiving the weft thread by the bringer rapier, the same, if desired, also in a spaced from the thread clamp 4 arranged guide are inserted in the rapier, for example, as shown in Fig. 2A, in a notch 8.
  • the weft thread 3 is additionally guided and / or held in Bringergreifer 1 by means of a guiding and / or holding device 10, which is controlled and / or moved by the inertia of a mass 6.
  • the Bringergreifer 1 is delayed before reaching the transfer point, wherein the guiding and / or holding device 10 is closed by the force acting on the mass 6 inertial forces, so that the weft thread 3 upon reaching the transfer point, as shown in FIG 2B, between thread clamp 4 and guide and / or holding device 10 extends.
  • the weft thread extending between the thread clamp and the guiding and / or holding device is now taken over by a gripper rapier.
  • the guiding and / or holding device 10 is designed so that the weft thread can be pulled out with the guide and / or holding device closed. In this way it can be ensured that when taking over the weft thread on both sides of the slave clamp a thread tension is present.
  • the inertia-controlled guiding and / or holding device is inevitably open when picking up the weft thread at the beginning of the weft insertion because of the positive acceleration present in this phase. Only with very slow gripper movements, it may be expedient to ensure the opening of the guiding and / or holding device by additional measures, for example by a spring element.
  • weft thread at the thread transfer must be braked at most minimally, so that most weft threads can be entered without controlled thread brake, and that the weft thread can be better fixed in the slave clamp, since the weft thread in the acquisition on both sides of the Clamp is held and thus on both sides a tensile stress is present.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Looms (AREA)
EP06126596A 2006-01-06 2006-12-20 Pince d'amenée pour métier à tisser à pince Active EP1806443B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP06126596A EP1806443B1 (fr) 2006-01-06 2006-12-20 Pince d'amenée pour métier à tisser à pince

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP06405003 2006-01-06
EP06126596A EP1806443B1 (fr) 2006-01-06 2006-12-20 Pince d'amenée pour métier à tisser à pince

Publications (2)

Publication Number Publication Date
EP1806443A1 true EP1806443A1 (fr) 2007-07-11
EP1806443B1 EP1806443B1 (fr) 2009-02-11

Family

ID=36013596

Family Applications (1)

Application Number Title Priority Date Filing Date
EP06126596A Active EP1806443B1 (fr) 2006-01-06 2006-12-20 Pince d'amenée pour métier à tisser à pince

Country Status (5)

Country Link
US (1) US20070157989A1 (fr)
EP (1) EP1806443B1 (fr)
JP (1) JP2007182670A (fr)
CN (1) CN1995516A (fr)
DE (1) DE502006002809D1 (fr)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7543610B2 (en) * 2006-06-16 2009-06-09 Sultex Ag Thread clamp for a rapier head
EP2037023A1 (fr) * 2007-09-12 2009-03-18 Sultex AG Pince-fil pour une tête de pince et son procédé de fonctionnement
US20090293983A1 (en) * 2008-05-28 2009-12-03 Itema (Switzerland) Ltd. Apparatus And Method For The Insertion Of A Weft Thread In A Rapier Weaving Machine
CN109137225A (zh) * 2018-10-10 2019-01-04 张克杰 一种适用于多种纱线剑杆机送纬剑头
CN109234895B (zh) * 2018-11-09 2024-02-20 江苏理工学院 一种剑杆织机的接纬装置及引纬装置
CN111705396B (zh) * 2020-05-29 2022-06-03 江苏万邦特种纺织发展有限公司 一种皮划艇防水布用剑杆织机引纬装置及其加工工艺
CN117248318B (zh) * 2023-11-15 2024-02-23 江苏友诚数控科技有限公司 一种织机找纬机构

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4417606A (en) * 1980-09-15 1983-11-29 Nuovo Pignone S.P.A. Weft propelling grippers for textile looms
US5007463A (en) * 1988-08-19 1991-04-16 Nuovopignone-Industrie Meccaniche E Fonderia, S.P.A. Weft clamping system for inserter rapier
EP0441099A1 (fr) * 1990-02-05 1991-08-14 Sulzer RàœTi Ag Griffe porteuse pour métiers à tisser à griffes
EP0811712A1 (fr) * 1996-06-07 1997-12-10 Sulzer Rüti Ag Pince-fil pour griffe d'amenée et griffe d'amenée avec un tel pince-fil

Family Cites Families (19)

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Publication number Priority date Publication date Assignee Title
GB1447861A (en) * 1972-08-31 1976-09-02 Mackie & Sons Ltd J Looms and weft inserters therefor
GB1460889A (en) * 1972-12-14 1977-01-06 Mackie & Sons Ltd J Shuttleless looms
GB1468819A (en) * 1973-06-15 1977-03-30 Mackie & Sons Ltd J Looms
DE2541990C3 (de) * 1974-09-23 1981-02-19 Albatex Ag, Vaduz Übernahmegreifer für Webmaschinen
CH582772A5 (fr) * 1975-02-28 1976-12-15 Rueti Ag Maschf
JPS5530781U (fr) * 1978-08-18 1980-02-28
DE3366208D1 (en) * 1983-04-18 1986-10-23 Rueti Ag Maschf Gripper for inserting a weft thread into a gripper weaving machine
DE3375806D1 (en) * 1983-12-14 1988-04-07 Rueti Ag Maschf Weft inserting device for a needle loom
CH670262A5 (fr) * 1986-02-13 1989-05-31 Sulzer Ag
CH669220A5 (de) * 1986-02-13 1989-02-28 Sulzer Ag Greifer fuer den schussfadeneintrag bei einer greiferwebmaschine.
ES2012386B3 (es) * 1986-06-03 1990-03-16 Picanol Nv Pinza de alimentacion para telares.
IT1238606B (it) * 1990-01-26 1993-08-18 Nuovo Pignone Spa Dispositivo perfezionato di pinzatura del filo di trama in un telaio tessile senza navetta
DE59102104D1 (de) * 1990-05-16 1994-08-11 Rueti Ag Maschf Greiferklemme für Webmaschinen.
DE59608911D1 (de) * 1995-10-17 2002-04-25 Sulzer Textil Ag Rueti Fadenhalter für einen Bringergreifer
DE29808997U1 (de) * 1998-05-18 1998-07-30 Textilma Ag, Hergiswil Greifer und eine Schusseintragvorrichtung für eine Greiferwebmaschine
DE19838781A1 (de) * 1998-08-26 2000-03-02 Picanol Nv Nehmergreifer für eine Greiferbandwebmaschine
DE10134504A1 (de) * 2001-07-05 2003-01-16 Picanol Nv Verfahren und Vorrichtung zum Öffnen einer Greiferklemme eines Greifers einer Webmaschine
EP1427877A1 (fr) * 2001-09-17 2004-06-16 PBT (IP) Limited Systeme de transfert de fil a vitesse elevee comprenant une liaison de renversement et une synchronisation electro-optique
EP1540058B1 (fr) * 2002-09-20 2009-10-28 Picanol N.V. Lance de transfert pour metier a tisser a lances

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4417606A (en) * 1980-09-15 1983-11-29 Nuovo Pignone S.P.A. Weft propelling grippers for textile looms
US5007463A (en) * 1988-08-19 1991-04-16 Nuovopignone-Industrie Meccaniche E Fonderia, S.P.A. Weft clamping system for inserter rapier
EP0441099A1 (fr) * 1990-02-05 1991-08-14 Sulzer RàœTi Ag Griffe porteuse pour métiers à tisser à griffes
EP0811712A1 (fr) * 1996-06-07 1997-12-10 Sulzer Rüti Ag Pince-fil pour griffe d'amenée et griffe d'amenée avec un tel pince-fil

Also Published As

Publication number Publication date
CN1995516A (zh) 2007-07-11
EP1806443B1 (fr) 2009-02-11
JP2007182670A (ja) 2007-07-19
DE502006002809D1 (de) 2009-03-26
US20070157989A1 (en) 2007-07-12

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