WO2007038880A1 - Metier a tisser a insertion de trame pneumatique - Google Patents

Metier a tisser a insertion de trame pneumatique Download PDF

Info

Publication number
WO2007038880A1
WO2007038880A1 PCT/CH2006/000340 CH2006000340W WO2007038880A1 WO 2007038880 A1 WO2007038880 A1 WO 2007038880A1 CH 2006000340 W CH2006000340 W CH 2006000340W WO 2007038880 A1 WO2007038880 A1 WO 2007038880A1
Authority
WO
WIPO (PCT)
Prior art keywords
weft thread
weaving machine
weft
blowing nozzles
drive device
Prior art date
Application number
PCT/CH2006/000340
Other languages
German (de)
English (en)
Inventor
Francisco Speich
Erwin Meier
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
Priority to DE502006003130T priority Critical patent/DE502006003130D1/de
Priority to EP06741665A priority patent/EP1943379B1/fr
Priority to BRPI0616810-8A priority patent/BRPI0616810A2/pt
Priority to US11/991,827 priority patent/US20090272456A1/en
Priority to JP2008533840A priority patent/JP2009510279A/ja
Publication of WO2007038880A1 publication Critical patent/WO2007038880A1/fr

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
    • D03D47/28—Looms in which bulk supply of weft does not pass through shed, e.g. shuttleless looms, gripper shuttle looms, dummy shuttle looms wherein the weft itself is projected into the shed
    • D03D47/30—Looms in which bulk supply of weft does not pass through shed, e.g. shuttleless looms, gripper shuttle looms, dummy shuttle looms wherein the weft itself is projected into the shed by gas jet
    • D03D47/3006—Construction of the nozzles
    • D03D47/3013—Main nozzles
    • 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
    • D03D47/28—Looms in which bulk supply of weft does not pass through shed, e.g. shuttleless looms, gripper shuttle looms, dummy shuttle looms wherein the weft itself is projected into the shed
    • D03D47/30—Looms in which bulk supply of weft does not pass through shed, e.g. shuttleless looms, gripper shuttle looms, dummy shuttle looms wherein the weft itself is projected into the shed by gas jet
    • 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
    • D03D47/28—Looms in which bulk supply of weft does not pass through shed, e.g. shuttleless looms, gripper shuttle looms, dummy shuttle looms wherein the weft itself is projected into the shed
    • D03D47/30—Looms in which bulk supply of weft does not pass through shed, e.g. shuttleless looms, gripper shuttle looms, dummy shuttle looms wherein the weft itself is projected into the shed by gas jet
    • D03D47/3026—Air supply systems
    • D03D47/3033—Controlling the air supply
    • D03D47/3046—Weft yarn selection

Definitions

  • the invention relates to a loom with pneumatic weft insertion according to the preamble of claim 1.
  • the weaving machine has a reed, which is assigned a guide device with a guide channel for a weft.
  • the guide channel is pivotally connected to the reed between an entry position and a stop position for the weft.
  • the guide channel in the entry position is associated with a stationary weft insertion device with blowing nozzles, which is thus arranged independently of the reed and thus on the one hand does not affect the movement of the reed and on the other hand is not affected by the movements of the reed itself.
  • a pair of scissors is used to cut off the inserted weft thread.
  • the nozzles are arranged pivotably in the vertical direction and are driven by a jacquard device and a return spring.
  • a jacquard device By means of the jacquard device in pairs two nozzles are presented to the guide channel, in each case only one tuyere is used. Since the scissors cut off the registered weft thread at the entry point at the tuyere, the registered weft thread must be held up to the stop edge by means of a clamping device.
  • the clamping device is associated with the reed and is moved with this.
  • the clamping device is relatively complicated and prone to failure.
  • the height control of the blowing nozzles by means of the jacquard device is also relatively complicated and has only a limited flexibility and accuracy.
  • a loom with pneumatic weft insertion in which a plurality of nozzles of a weft insertion device are arranged pivotably in the height direction by means of a drive device to selectively align them to the guide channel.
  • the disadvantage is that the weft insertion device are fixedly arranged on the batten and the drive for the nozzles. This not only leads to a complicated drive, but also through the reciprocating movement of the sley together with the weft insertion device to increased Massekraäften. These affect the stroke frequency. The acceleration and deceleration forces associated with the movement also have an adverse effect on the stability of the weft insertion device. To cut off the inserted weft thread, the entire weft insertion device with the sley is moved against a cutting device. A pivoting of the nozzles across the height direction is not available.
  • the object of the invention is to improve a loom with pneumatic weft insertion of the type mentioned.
  • the object is achieved according to the invention by the characterizing features of claim 1.
  • the fact that the nozzles are mounted pivotably in the transverse direction against the scissors and are connected to a separate motor drive device to move the selected nozzle in an exact manner against the scissors is the registered weft practically only then cut when he gets in the scissors. In this way it is possible to place the cutting of the inserted weft thread in the stop region of the weft thread, so that a clamping device is no longer required. This not only simplifies the loom, but also increases the accuracy of picking the weft.
  • the drive device is designed so that the cutting of a registered weft thread takes place in the region of the stop edge of the material web.
  • the weft thread has already taken a safe position, so that even after cutting a shifting of the weft thread is no longer possible.
  • the drive device is designed so that the respectively used blowing nozzle is aligned in the transverse direction at least approximately coaxial with the guide channel.
  • the embodiment according to claim 4 is advantageous, according to which the nozzles are further mounted pivotably in the height direction transverse to the transverse direction and driven.
  • This drive can be done in a known manner by means of the jacquard device.
  • the embodiment according to claim 5 wherein the blowing nozzles are connected to a further separate motor drive device for the height direction to align one of the blowing nozzles in the height direction at least approximately to the guide channel.
  • the weft insertion device has a plurality of nozzles arranged in the transverse direction and in the height direction.
  • the weaving machine has a control device for the pattern control, which is also connected to each motor drive device for controlling them, so that weft threads of different color or quality can be used depending on the patterned fabric to be created.
  • the loom is preferably designed so that the control device prevents in the event of a yarn breakage, that the weft thread is movable into the pair of scissors to discharge the broken weft thread and retighten a new section of the weft thread.
  • Figure 1 shows the weaving area of a loom in view of the weft insertion device, when entering a weft thread
  • FIG. 2 shows the loom of Figure 1 in a view transverse to the height direction.
  • Figure 3 shows the loom of Figure 1 when striking a weft thread and the cutting of the weft thread.
  • Figure 4 shows the loom of Figure 3 in top view.
  • FIGS. 1 to 4 show, in a schematic representation, the weft insertion region of a weaving machine in a schematic representation, wherein only the parts important for the present invention are shown. All other features of the loom are state of the art.
  • Figures 1 and 3 show the weaving area of a weaving machine on the warp threads 2 are moved by means of a shedding device 4, such as a jacquard device to an open shed 6, in which by means of a weft insertion device 8, a weft thread 10 is entered.
  • a shedding device 4 such as a jacquard device
  • a weft insertion device 8 By means of a reed tes 12, the weft thread 10 is struck at a stop edge 14, so that a web 16 is formed.
  • the weft insertion device 8 is of pneumatic design and has a nozzle block 20, which in the present example has eight blowing nozzles 22 which are arranged in pairs in transverse direction Q according to FIG. 4, wherein four pairs of such blowing nozzles are arranged one above the other in the vertical direction H.
  • the nozzle block 22 is arranged pivotable about a vertical axis 24 in the transverse direction Q and pivotally mounted about a horizontal axis 26 in the height direction H.
  • a first drive device 28 includes a motor 30 which is connected via a lever gear 32 with the blowing nozzles 22.
  • a second drive device 34 for pivoting the blowing nozzles 22 in the height direction H is arranged.
  • This second drive device in turn has a motor 36, which is connected via a further lever mechanism 38 with the blowing nozzles 22.
  • the first drive device 28 and the second drive device 34 are initially used to select one of the blowing nozzles 22 and align coaxially with a guide channel 40 of a guide device 42 which is connected to the reed 12 and serves to guide a registered weft thread 10.
  • Stafettendüsen 44 serve to advance the registered weft thread along the guide channel 40th
  • the first drive device 28 also serves to move the nozzles 22 against a stationary scissors 46, which is arranged in the region of the stop edge 14 of the web 16 such that the scissors 46 is practically effective only when the registered weft thread 10 practically at the Stop edge 14 is posted, as is apparent from Figures 3 and 4.
  • a control device 50 connected to the first and the second drive device 28, 34 serves to control the loom in accordance with the pattern, and thus also the first drive device 28 and the second drive device 34 in order to select the blow nozzle 22 required for the pattern to be created, by means of FIG weft thread 10 required for the pattern is presented. Moreover, the control device also serves to drive the drive directions 28, 34 to control so that the registered weft of the scissors 46 is accurately presented.

Landscapes

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

Abstract

L'invention concerne un métier à tisser à insertion de trame pneumatique. Ledit métier comprend un peigne (12) à laquelle est associé un dispositif de guidage (42) avec un canal de guidage (40) pour un fil de trame (10). Ledit canal de guidage (10) peut être basculé avec le peigne (12) entre une position d'insertion et une position de butée pour le fil de trame (10). Un dispositif d'insertion de trame fixe (8) comportant au moins deux buses de soufflage (22) est en outre associé au canal de guidage (40), en position d'insertion. Une cisaille (46) montée fixe sert à couper le fil de trame (10) inséré. Pour améliorer le métier à tisser, les buses de soufflage (22) sont montées de manière à pivoter par rapport à la cisaille (46) dans le sens transversal (Q) et sont reliées à un dispositif d'entraînement (28) à moteur, afin de déplacer les buses de soufflage (22) par rapport à la cisaille (46).
PCT/CH2006/000340 2005-10-05 2006-06-23 Metier a tisser a insertion de trame pneumatique WO2007038880A1 (fr)

Priority Applications (5)

Application Number Priority Date Filing Date Title
DE502006003130T DE502006003130D1 (de) 2005-10-05 2006-06-23 Webmaschine mit pneumatischer schusseintragung
EP06741665A EP1943379B1 (fr) 2005-10-05 2006-06-23 Metier a tisser a insertion de trame pneumatique
BRPI0616810-8A BRPI0616810A2 (pt) 2005-10-05 2006-06-23 máquina de tecedura compreendendo inserção pneumática de trama
US11/991,827 US20090272456A1 (en) 2005-10-05 2006-06-23 Weaving Machine Comprising Pneumatic Weft Insertion
JP2008533840A JP2009510279A (ja) 2005-10-05 2006-06-23 空気式緯入れ装置を有する織機

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH1603/05 2005-10-05
CH16032005 2005-10-05

Publications (1)

Publication Number Publication Date
WO2007038880A1 true WO2007038880A1 (fr) 2007-04-12

Family

ID=36781468

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CH2006/000340 WO2007038880A1 (fr) 2005-10-05 2006-06-23 Metier a tisser a insertion de trame pneumatique

Country Status (11)

Country Link
US (1) US20090272456A1 (fr)
EP (1) EP1943379B1 (fr)
JP (1) JP2009510279A (fr)
KR (1) KR20080057249A (fr)
CN (1) CN101283133A (fr)
AT (1) ATE425285T1 (fr)
BR (1) BRPI0616810A2 (fr)
DE (1) DE502006003130D1 (fr)
ES (1) ES2320270T3 (fr)
TW (1) TW200714762A (fr)
WO (1) WO2007038880A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN116575170A (zh) * 2023-07-12 2023-08-11 江苏友诚数控科技有限公司 一种用于织造厚织物的气流引纬打纬机构

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4178971A (en) * 1976-08-24 1979-12-18 Vyzkumny A Vyvojovy Ustav Zavodu Vseobecneho Strojirenstvi Method of and apparatus for inserting weft threads into a jet loom
DE3014776A1 (de) * 1979-04-25 1980-11-06 Rueti Te Strake Bv Vorrichtung zum eintragen auffolgender schussfadenlaengen bei einer schuetzenlosen webmaschine
DE3204007A1 (de) * 1982-02-05 1983-08-11 Guenne Webmaschf Gmbh Vorrichtung und verfahren zum einblasen verschiedenfarbiger schussfaeden bei luftduesen-webmaschinen
WO1999034047A2 (fr) * 1997-12-23 1999-07-08 Výzkumný Ústav Textiních Strojů Liberec A.S. Metier a tisser pneumatique comportant un mecanisme de commande d'ajutages auxiliaires
WO2000063474A1 (fr) * 1999-04-20 2000-10-26 Picanol N.V. Dispositif permettant d'inserer des fils de trame dans un metier a tisser a tuyeres

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2662556A (en) * 1949-04-02 1953-12-15 Ceskoslovenske Textilni Zd Y Device for weaving of fabrics
DE2048934C3 (de) * 1969-10-08 1980-08-28 Elitex, Koncern Textilniho Strojirenstvi, Reichenberg (Tschechoslowakei) Düsenwebmaschine
FR2064236B1 (fr) * 1969-10-10 1979-03-26
CS165002B1 (fr) * 1970-09-18 1975-11-28
FR2497240A1 (fr) * 1980-12-30 1982-07-02 Saurer Diederichs Sa Dispositif a buse mobile pour insertion pneumatique de la trame sur une machine a tisser sans navette
DE3467782D1 (en) * 1984-05-21 1988-01-07 Sulzer Ag Weft insertion nozzle for air jet looms
CH671412A5 (fr) * 1986-09-10 1989-08-31 Textilma Ag
US4998214A (en) * 1989-04-03 1991-03-05 Unisys Corp. Apparatus for line imaging
US5295515A (en) * 1991-02-25 1994-03-22 Kabushiki Kaisha Toyoda Jidoshokki Seisakusho Apparatus for controlling weft insertion in jet loom
US5632187A (en) * 1991-07-18 1997-05-27 Textilma Ag Process and device for cutting a web of textile fabric
CA2234464C (fr) * 1995-10-10 2004-09-14 Textilma Ag Metier mecanique a insertion pneumatique du fil de trame
BR9714718A (pt) * 1997-04-09 2000-06-20 Textilma Ag Tear com inserção de fio de trama pneumática
DE19802910C2 (de) * 1998-01-27 2000-08-03 Dornier Gmbh Lindauer Webmaschine, insbesondere mit pneumatischem Schußfadeneintrag
JP2001234451A (ja) * 2000-02-22 2001-08-31 Tsudakoma Corp 織機における耳形成装置の駆動方法及び装置

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4178971A (en) * 1976-08-24 1979-12-18 Vyzkumny A Vyvojovy Ustav Zavodu Vseobecneho Strojirenstvi Method of and apparatus for inserting weft threads into a jet loom
DE3014776A1 (de) * 1979-04-25 1980-11-06 Rueti Te Strake Bv Vorrichtung zum eintragen auffolgender schussfadenlaengen bei einer schuetzenlosen webmaschine
DE3204007A1 (de) * 1982-02-05 1983-08-11 Guenne Webmaschf Gmbh Vorrichtung und verfahren zum einblasen verschiedenfarbiger schussfaeden bei luftduesen-webmaschinen
WO1999034047A2 (fr) * 1997-12-23 1999-07-08 Výzkumný Ústav Textiních Strojů Liberec A.S. Metier a tisser pneumatique comportant un mecanisme de commande d'ajutages auxiliaires
WO2000063474A1 (fr) * 1999-04-20 2000-10-26 Picanol N.V. Dispositif permettant d'inserer des fils de trame dans un metier a tisser a tuyeres

Also Published As

Publication number Publication date
US20090272456A1 (en) 2009-11-05
TW200714762A (en) 2007-04-16
EP1943379B1 (fr) 2009-03-11
EP1943379A1 (fr) 2008-07-16
ES2320270T3 (es) 2009-05-20
DE502006003130D1 (de) 2009-04-23
KR20080057249A (ko) 2008-06-24
CN101283133A (zh) 2008-10-08
ATE425285T1 (de) 2009-03-15
JP2009510279A (ja) 2009-03-12
BRPI0616810A2 (pt) 2011-07-05

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