US20090272456A1 - Weaving Machine Comprising Pneumatic Weft Insertion - Google Patents

Weaving Machine Comprising Pneumatic Weft Insertion Download PDF

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Publication number
US20090272456A1
US20090272456A1 US11/991,827 US99182706A US2009272456A1 US 20090272456 A1 US20090272456 A1 US 20090272456A1 US 99182706 A US99182706 A US 99182706A US 2009272456 A1 US2009272456 A1 US 2009272456A1
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US
United States
Prior art keywords
weaving machine
blow nozzles
vertical direction
transverse direction
drive device
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.)
Abandoned
Application number
US11/991,827
Other languages
English (en)
Inventor
Francisco Speich
Erwin Meier
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
Assigned to TEXTILMA AG reassignment TEXTILMA AG ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: MEIER, ERWIN, SPEICH, FRANCISCO
Publication of US20090272456A1 publication Critical patent/US20090272456A1/en
Abandoned 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
    • D03D47/28—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 weaving machine comprising pneumatic weft insertion.
  • a weaving machine comprising pneumatic weft insertion of the type initially mentioned is known, for example, from WO 97/13901.
  • the weaving machine has a reed which is assigned a guide device with a guide duct for a weft thread.
  • the guide duct is pivotable, together with the reed, between an insertion position and a beating-up position of the weft thread.
  • the guide duct is assigned, in the insertion position, a fixed weft insertion device with blow nozzles, which is therefore independent of the reed and therefore, on the one hand, does not impair the movement of the reed and, on the other hand, is also not impaired itself by the movements of the reed.
  • Shears serve for cutting off the inserted weft thread.
  • the blow 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 each case two blow nozzles are presented in pairs to the guide duct, in each case only one blow nozzle being used. Since the shears cut off the inserted weft thread at the insertion point of the blow nozzle, the inserted weft thread has to be held by means of a clamping device as far as the beating-up edge.
  • the clamping device is assigned to the reed and is moved together with the latter.
  • the clamping device is relatively complicated and susceptible to faults.
  • the height control of the blow nozzles by means of the Jacquard device is likewise relatively complicated and has only a restricted flexibility and accuracy.
  • WO 00/63464 A1 discloses a weaving machine comprising pneumatic weft insertion, in which a plurality of blow nozzles of a weft insertion device are arranged pivotably in the vertical direction by means of a drive device, in order to align said weft insertion device selectively with the guide duct.
  • the disadvantage of this is that the weft insertion device on the batten and the drive for the nozzles are arranged fixedly. This not only leads to a complicated drive, but also to increased mass forces due to the to-and-fro movement of the batten together with the weft insertion device. These mass forces are detrimental to the beating-up 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, together with the batten, is moved up against a cutting device. There is no pivotability of the blow nozzles transversely to the vertical direction.
  • DE 30 14 776 A1 discloses a further weaving machine comprising pneumatic weft insertion, in which a plurality of blow nozzles of a weft insertion device are arranged pivotably in the vertical direction and in the transverse direction, in order to align a selectable blow nozzle with a guide duct on the batten.
  • the weft insertion device is arranged on the batten, thus resulting in the disadvantages already referred to above.
  • the actual drive of the blow nozzles no actual particulars are given, not even any interaction with any cutting device.
  • the object of the invention is to improve a weaving machine comprising pneumatic weft insertion of the type initially mentioned.
  • a clamping solution as in WO 97/13901, is to be capable of being dispensed with and, on the other hand, the disadvantages of the overloading of the movable batten, which arise from WO 00/63464 A1, are not to be taken into account.
  • blow nozzles are mounted pivotably in the transverse direction toward the shears and are connected to a specific motor drive device, in order to move the selected blow nozzle toward the shears exactly, the inserted weft thread is cut virtually only when it enters the shears. It is thereby possible to shift the cutting off of the inserted weft thread into the beating-up region of the weft thread, so that there is no longer any need for a clamping device. This not only simplifies the weaving machine, but also increases the accuracy of insertion of the weft thread.
  • a refinement is particularly advantageous, according to which the drive device is designed such that the cutting of an inserted weft thread takes place in the region of the beating-up edge of the cloth web.
  • the weft thread has already assumed a reliable position, so that, even after cutting off, a displacement of the weft thread is no longer possible.
  • the accuracy and operating reliability of the weaving machine can be improved if the drive device is designed such that the blow nozzle used in each case is oriented in the transverse direction at least approximately coaxially to the guide duct.
  • blow nozzles arranged one above the other in the vertical direction are used, the design according to which the blow nozzles are mounted pivotably and can be driven further in the vertical direction transversely to the transverse direction.
  • This drive may take place in a known way by means of the Jacquard device.
  • the design is more advantageous, according to which the blow nozzles are connected to a further separate motor drive device for the vertical direction, in order to align one of the blow nozzles at least approximately with the guide duct in the vertical direction.
  • This refinement is advantageous particularly when the weft insertion device has a plurality of blow nozzles arranged in the transverse direction and in the vertical direction.
  • a servomotor for example, a direct-current motor or, in particular, an AC motor is suitable for the motor drive device.
  • the weaving machine has a control device for pattern control, which, moreover, is connected to each motor drive device for the control of the latter, so that weft threads of different color or quality can be used as a function of the patterned fabric to be produced.
  • the weaving machine is preferably configured such that, in the event of a thread break, the control device prevents the weft thread from being movable into the shears, so as to discharge the broken weft thread and draw up a new portion of the weft thread.
  • FIG. 1 shows the weaving region of a weaving machine in a view of the weft insertion device, during the insertion of a weft thread
  • FIG. 2 shows the weaving machine of FIG. 1 in a view transverse to the vertical direction
  • FIG. 3 shows the weaving machine of FIG. 1 during the beating up of a weft thread and during the cutting off of the weft thread;
  • FIG. 4 shows the weaving machine of FIG. 3 in a view from above.
  • FIGS. 1 to 4 show the weft insertion region of a weaving machine in a diagrammatic illustration, only the parts important for the present invention being shown. All the other features of the weaving machine are state of the art.
  • FIGS. 1 and 3 show the weaving region of a weaving machine, at which warp threads 2 are moved by means of a shedding device 4 , for example a Jacquard device, to an open shed 6 , into which a weft thread 10 is inserted by means of a weft insertion device 8 .
  • a shedding device 4 for example a Jacquard device
  • the weft thread 10 is beaten up at a beating-up edge 14 , so that a cloth web 16 is obtained.
  • the weft insertion device 8 is designed pneumatically and has a nozzle block 20 which, in the present example, has eight blow nozzles 22 which, according to FIG. 4 , are arranged in pairs in transverse direction Q, according to FIG. 2 four pairs of such blow nozzles being arranged one above the other in the vertical direction H.
  • the nozzle block 22 is arranged pivotably via a vertical axis 24 in the transverse direction Q and is mounted pivotably about a horizontal axis 26 in the vertical direction H.
  • a first drive device 28 contains a motor 30 which is connected to the blow nozzles 22 via a lever mechanism 32 .
  • a second drive device 34 for pivoting the blow nozzles 22 in the vertical direction H is arranged in a similar way.
  • This second drive device has, again, a motor 36 which is connected to the blow nozzles 22 via a further lever mechanism 38 .
  • the first drive device 28 and the second drive device 34 serve initially for selecting one of the blow nozzles 22 and for aligning it coaxially with a guide duct 40 of a guide device 42 which is connected to the reed 12 and serves for guiding an inserted weft thread 10 .
  • Staggered nozzles 44 serve for the forward movement of the inserted weft thread along the guide duct 40 .
  • the first drive device 28 serves for moving the blow nozzles 22 toward fixed shears 46 which are arranged in the region of the beating-up edge 14 of the cloth web 16 in such a way that the shears 46 take effect virtually only when the inserted weft thread 10 is virtually beaten up at the beating-up edge 14 , as may be gathered from FIGS. 3 and 4 .
  • a control device 50 connected to the first and to the second drive device 28 , 34 serves for the pattern control of the weaving machine and consequently also of the first drive device 28 and the second drive device 34 , in order in each case to select the blow nozzle 22 which is required for the pattern to be produced and by means of which the weft thread 10 required for the pattern is presented. Moreover, the control device also serves for controlling the drive devices 28 , 34 such that the inserted weft thread is presented exactly to the shears 46 .

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Looms (AREA)
  • Coating Apparatus (AREA)
US11/991,827 2005-10-05 2006-06-23 Weaving Machine Comprising Pneumatic Weft Insertion Abandoned US20090272456A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
CH1603/05 2005-10-05
CH16032005 2005-10-05
PCT/CH2006/000340 WO2007038880A1 (de) 2005-10-05 2006-06-23 Webmaschine mit pneumatischer schusseintragung

Publications (1)

Publication Number Publication Date
US20090272456A1 true US20090272456A1 (en) 2009-11-05

Family

ID=36781468

Family Applications (1)

Application Number Title Priority Date Filing Date
US11/991,827 Abandoned US20090272456A1 (en) 2005-10-05 2006-06-23 Weaving Machine Comprising Pneumatic Weft Insertion

Country Status (11)

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

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 (16)

* 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
US3693668A (en) * 1969-10-08 1972-09-26 Elitex Zavody Textilniho Pneumatic weft delivery means for shuttleless looms
US3734143A (en) * 1969-10-10 1973-05-22 Elitex Zavody Textilniho Measuring and length determining means for weft yarn in shuttleless looms
US3821972A (en) * 1970-09-18 1974-07-02 Elitex Zavody Textilniho Method of picking weft yarns in shuttleless looms
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
US4326565A (en) * 1979-04-25 1982-04-27 Mullekom Hubert P Van Apparatus for inserting successive weft yarn lengths in a shuttleless weaving machine
US4448223A (en) * 1980-12-30 1984-05-15 Saurer Diederichs (Societe Anonyme) Device comprising a movable nozzle for the pneumatic insertion of the weft in a shuttle-less loom
US4669514A (en) * 1984-05-21 1987-06-02 Gebruder Sulzer Aktiengesellschaft Air jet weaving machine and weft insertion nozzle arrangement in such air jet weaving machine
US4830064A (en) * 1986-09-10 1989-05-16 Textilma Ag Mechanical loom
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
US6014992A (en) * 1995-10-10 2000-01-18 Textilma Ag Mechanical loom with pneumatic weft thread insertion with synchronized clamp cutter and reed
US6209588B1 (en) * 1998-01-27 2001-04-03 Lindauer Dornier Gesellschaft Gmbh Weaving machine with pneumatic weft insertion and catch selvedge forming device
US6223779B1 (en) * 1997-04-09 2001-05-01 Textilma Ag Auxiliary selvage forming and weft thread cutting device
US20010015236A1 (en) * 2000-02-22 2001-08-23 Tsudakoma Kogyo Kabushiki Kaisha Method and apparatus for driving selvedge forming device in weaving machine

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3204007A1 (de) * 1982-02-05 1983-08-11 Guenne Webmaschf Gmbh Vorrichtung und verfahren zum einblasen verschiedenfarbiger schussfaeden bei luftduesen-webmaschinen
CZ290564B6 (cs) * 1997-12-23 2002-08-14 Vúts Liberec A. S. Vzduchový tkací stroj se zařízením k ovládání přifukovacích trysek
BE1012620A3 (nl) * 1999-04-20 2001-01-09 Picanol Nv Inrichting en werkwijze voor het inbrengen van een inslagdraad bij een weefmachine.

Patent Citations (16)

* 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
US3693668A (en) * 1969-10-08 1972-09-26 Elitex Zavody Textilniho Pneumatic weft delivery means for shuttleless looms
US3734143A (en) * 1969-10-10 1973-05-22 Elitex Zavody Textilniho Measuring and length determining means for weft yarn in shuttleless looms
US3821972A (en) * 1970-09-18 1974-07-02 Elitex Zavody Textilniho Method of picking weft yarns in shuttleless looms
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
US4326565A (en) * 1979-04-25 1982-04-27 Mullekom Hubert P Van Apparatus for inserting successive weft yarn lengths in a shuttleless weaving machine
US4448223A (en) * 1980-12-30 1984-05-15 Saurer Diederichs (Societe Anonyme) Device comprising a movable nozzle for the pneumatic insertion of the weft in a shuttle-less loom
US4669514A (en) * 1984-05-21 1987-06-02 Gebruder Sulzer Aktiengesellschaft Air jet weaving machine and weft insertion nozzle arrangement in such air jet weaving machine
US4830064A (en) * 1986-09-10 1989-05-16 Textilma Ag Mechanical loom
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
US6014992A (en) * 1995-10-10 2000-01-18 Textilma Ag Mechanical loom with pneumatic weft thread insertion with synchronized clamp cutter and reed
US6223779B1 (en) * 1997-04-09 2001-05-01 Textilma Ag Auxiliary selvage forming and weft thread cutting device
US6209588B1 (en) * 1998-01-27 2001-04-03 Lindauer Dornier Gesellschaft Gmbh Weaving machine with pneumatic weft insertion and catch selvedge forming device
US20010015236A1 (en) * 2000-02-22 2001-08-23 Tsudakoma Kogyo Kabushiki Kaisha Method and apparatus for driving selvedge forming device in weaving machine

Also Published As

Publication number Publication date
TW200714762A (en) 2007-04-16
JP2009510279A (ja) 2009-03-12
DE502006003130D1 (de) 2009-04-23
EP1943379B1 (de) 2009-03-11
ES2320270T3 (es) 2009-05-20
WO2007038880A1 (de) 2007-04-12
KR20080057249A (ko) 2008-06-24
ATE425285T1 (de) 2009-03-15
BRPI0616810A2 (pt) 2011-07-05
EP1943379A1 (de) 2008-07-16
CN101283133A (zh) 2008-10-08

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AS Assignment

Owner name: TEXTILMA AG, SWITZERLAND

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:SPEICH, FRANCISCO;MEIER, ERWIN;REEL/FRAME:020688/0272

Effective date: 20080218

STCB Information on status: application discontinuation

Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION