EP0189919A1 - Dispositif pour le contrôle automatique de l'insertion de trame dans les métiers à jet d'air - Google Patents

Dispositif pour le contrôle automatique de l'insertion de trame dans les métiers à jet d'air Download PDF

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Publication number
EP0189919A1
EP0189919A1 EP86101177A EP86101177A EP0189919A1 EP 0189919 A1 EP0189919 A1 EP 0189919A1 EP 86101177 A EP86101177 A EP 86101177A EP 86101177 A EP86101177 A EP 86101177A EP 0189919 A1 EP0189919 A1 EP 0189919A1
Authority
EP
European Patent Office
Prior art keywords
nozzles
automatic control
air
solenoid valves
yarn
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.)
Withdrawn
Application number
EP86101177A
Other languages
German (de)
English (en)
Inventor
Luigi Pezzoli
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.)
VILMINORE OFFICINE MECCANICHE SpA
Original Assignee
VILMINORE OFFICINE MECCANICHE SpA
OMV Officine Meccaniche Vilminore SpA
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 VILMINORE OFFICINE MECCANICHE SpA, OMV Officine Meccaniche Vilminore SpA filed Critical VILMINORE OFFICINE MECCANICHE SpA
Publication of EP0189919A1 publication Critical patent/EP0189919A1/fr
Withdrawn legal-status Critical Current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
    • D03D47/3066—Control or handling of the weft at or after arrival
    • 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
    • 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
    • D03D47/304—Controlling of the air supply to the auxiliary 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
    • D03D47/3026—Air supply systems
    • D03D47/3053—Arrangements or lay out of air supply systems
    • 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
    • D03D47/36—Measuring and cutting the weft
    • D03D47/361—Drum-type weft feeding devices
    • D03D47/362—Drum-type weft feeding devices with yarn retaining devices, e.g. stopping pins
    • D03D47/363—Construction or control of the yarn retaining devices

Definitions

  • This invention relates to a device for the automatic control of the weft yarn feed in air looms.
  • the time is set so that, also in these conditions, it may be possible to avoid stoppage (in practice, one should increase the feed pressure of the main nozzle and/or the auxiliary nozzles), the result will be greater consumption - should the yarn conditions subsequently allow shorter flight times - as well as the possibility of defects appearing in the fabric.
  • Such a device is characterized by comprising at least one sensor, which measures the time taken for each yarn turn leaving the feeder to unwind - before its rotary-translational motion is turned into a purely transLational motion - and an analyzing and monitoring circuit, to which are fed the motion analysis signals from the sensor and which continuously monitors the operating times of said solenoid valves and the pressure LeveL in said air receivers. If, instead of a single sensor, a number of them are used, distributed in cascade at the periphery of the feeder drum, the time measured by each sensor is not the unwinding time of one turn, but that of the corresponding turn portion.
  • This device can be realized in various embodiments.
  • it can comprise a single air receiver for each nozzle or group of nozzles, said analyzer circuit monitoring, on one hand, said solenoid valves and, on the other hand, servo controls associated to said air receivers in order to vary the pressure therein.
  • FIG. 1 show this device applied to an air Loom T, of which the reed and sley P, the nozzle 1 drawing in the yarn f, the group of feeding nozzles 2 and the tensioning nozzle 3, are shown diagrammatically.
  • These nozzles are supplied from compressed air receivers 4, 5 and 6 respectively, by way of solenoid valves 7, 8 and 9, the pressure in the receivers being adjustable by means of servo controls 10, 11 and 12.
  • the yarn f is fed to the nozzle 1 by a conventional weft feeder A which draws it from a reel R.
  • the device according to the invention represented by. the diagram of figure 1, simply comprises an optical or piezoetectris censor 13, apt to measure tne time taken for each yarn turn Leaving the feeder A to unwind (before the rotary-translational motion of the yarn, as it emerges from the feeder A, is turned into a purely translational motion, as said yarn is drawn into the Loom T), and an analyzing and monitoring circuit 14, to which the sensor 13 transmits its motion analysis signals.
  • Output signals from the circuit 14 can be sent both to the solenoid valves 7, 8 and 9, and to the servo controls 10, 11 and 12.
  • the automatic control device can also be realized in other embodiments, differing from that illustrated in figure 1.
  • a single sensor 13 more sensors (not shown) can be used, evenly or unevenly distributed in cascade at the periphery of the drum of the feeder A. In this case, each sensor monitors only one portion of each turn unwinding from the feeder and thus measures the unwinding time of said turn portion.
  • the nozzles 1, 2 and 3 can be supplied from pairs of compressed air receivers 4A, 48, 5A, 5B and 6A, 68, having different pressure levels, each with its own solenoid valve and servo control.
  • the automatic control device is equally applicable by simply supplying the analyzing and monitoring circuit 14 - suitably adapted - with the data relative to the colour sequence involved.
  • the circuit will accordingly adapt the air pressures and nozzle blowing times to each type of yarn, by correspondingly setting them - for each colour- to those values which had been set in the previous cycle for the same colour (and type of yarn), such values being then adjusted - as already seen in the case of feeding a single yarn - according to the motion analysis signals transmitted by the sensor 13.
  • Luminous signals or panels can be associated to the described device, to allow immediate action by the operators if the analysis signals should reveal that the physical degradation of the yarn being weaved is Leading to intolerable consumption by the Loom.
  • the invention could also be carried out differently than in the heretofore described and illustrated embodiments.
  • the sensor 13 of the device according to the invention - which, in the accompanying drawings, is shown separate from the feeder A - could obviously form part thereof, by being incorporated in said component or associated thereto.
  • This arrangement could also be adopted in the already considered case of using several sensors.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Looms (AREA)
EP86101177A 1985-01-30 1986-01-29 Dispositif pour le contrôle automatique de l'insertion de trame dans les métiers à jet d'air Withdrawn EP0189919A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT1929485 1985-01-30
IT8519294A IT1215235B (it) 1985-01-30 1985-01-30 Dell'alimentazione di filati di dispositivo di autoregolazione trama in telai di tessitura ad aria.

Publications (1)

Publication Number Publication Date
EP0189919A1 true EP0189919A1 (fr) 1986-08-06

Family

ID=11156495

Family Applications (1)

Application Number Title Priority Date Filing Date
EP86101177A Withdrawn EP0189919A1 (fr) 1985-01-30 1986-01-29 Dispositif pour le contrôle automatique de l'insertion de trame dans les métiers à jet d'air

Country Status (5)

Country Link
EP (1) EP0189919A1 (fr)
JP (1) JPS61207642A (fr)
BR (1) BR8600330A (fr)
ES (1) ES8700704A1 (fr)
IT (1) IT1215235B (fr)

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0279222A1 (fr) * 1987-01-26 1988-08-24 Vilminore Officine Meccaniche S.P.A. Dispositif pour le contrôle automatique de l'insertion de trame dans les métiers à tisser à jet d'air
EP0344104A1 (fr) * 1988-05-26 1989-11-29 GebràœDer Sulzer Aktiengesellschaft Métier à tisser avec système de réglage de l'insertion de la trame
WO1989012122A1 (fr) * 1988-06-02 1989-12-14 Lindauer Dornier Ges.M.B.H. Commande d'ajutages pour metier a tisser pneumatique
EP0401699A2 (fr) * 1989-06-06 1990-12-12 L.G.L. ELECTRONICS S.p.A. Dispositif pour compter les enroulements se déroulant d'un fournisseur de fil de trame dans un métier à tisser
EP0442546A1 (fr) * 1990-02-15 1991-08-21 Picanol N.V. Dispositif fournisseur de fil de trame pour métiers à jet d'air
BE1006086A4 (fr) * 1991-08-12 1994-05-10 Nissan Motor Metier a jet fluide et methode pour assurer son fonctionnement.
EP2319968A1 (fr) 2009-11-09 2011-05-11 Promatech S.p.A. Système de contrôle de l'air pour l'insertion de fil de trame dans une machine à tisser pneumatique
CN104790099A (zh) * 2015-04-28 2015-07-22 宁波市东盛纺织有限公司 一种具有导气杆的喷气织机
CN104790100A (zh) * 2015-04-28 2015-07-22 宁波市东盛纺织有限公司 一种喷气织机
CN104790101A (zh) * 2015-04-28 2015-07-22 宁波市东盛纺织有限公司 一种宽幅喷气织机
US20230243075A1 (en) * 2022-01-28 2023-08-03 Tsudakoma Kogyo Kabushiki Kaisha Weft insertion method and weft insertion device for air jet loom

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63190046A (ja) * 1986-09-25 1988-08-05 旭化成株式会社 ウオ−タ−ジエツトル−ムの製織状態管理方法
JPH0233351A (ja) * 1988-07-20 1990-02-02 Nissan Motor Co Ltd 流体噴射式織機の緯入れ制御方法
JP2707291B2 (ja) * 1988-10-24 1998-01-28 日産テクシス株式会社 空気噴射式織機の緯入れ制御方法
ITTO20010013A1 (it) * 2001-01-12 2002-07-12 Lgl Electronics Spa Metodo e dispositivo per il controllo della riserva di trama negli alimentatori di trama a telai di tessitura ad inserzione meccanica includ
CN105442160B (zh) * 2015-12-22 2018-04-24 广东溢达纺织有限公司 停气自动控制装置及喷气织机进气装置

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0107110A1 (fr) * 1982-09-30 1984-05-02 Aktiebolaget Iro Accumulateur de fil avec dispositif de mesure
WO1984002360A1 (fr) * 1982-12-10 1984-06-21 Iro Ab Procede et dispositif de commande d'une pluralite de tuyeres a relais dans une machine a tisser par jet
EP0114047A2 (fr) * 1983-01-13 1984-07-25 Tsudakoma Corporation Procédé et dispositif d'insertion des fils de trame pour métiers à tisser à jet d'air multicolores
GB2151266A (en) * 1983-12-13 1985-07-17 Saurer Diederichs Sa Compressed air supply device for a weaving machine with pneumatic picking of at least two weft threads
US4534387A (en) * 1982-01-18 1985-08-13 Ruti-Te Strake B.V. Method and apparatus for inserting different weft threads having different properties into the warp shed of a jet weaving machine

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4534387A (en) * 1982-01-18 1985-08-13 Ruti-Te Strake B.V. Method and apparatus for inserting different weft threads having different properties into the warp shed of a jet weaving machine
EP0107110A1 (fr) * 1982-09-30 1984-05-02 Aktiebolaget Iro Accumulateur de fil avec dispositif de mesure
WO1984002360A1 (fr) * 1982-12-10 1984-06-21 Iro Ab Procede et dispositif de commande d'une pluralite de tuyeres a relais dans une machine a tisser par jet
EP0114047A2 (fr) * 1983-01-13 1984-07-25 Tsudakoma Corporation Procédé et dispositif d'insertion des fils de trame pour métiers à tisser à jet d'air multicolores
GB2151266A (en) * 1983-12-13 1985-07-17 Saurer Diederichs Sa Compressed air supply device for a weaving machine with pneumatic picking of at least two weft threads

Cited By (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0279222A1 (fr) * 1987-01-26 1988-08-24 Vilminore Officine Meccaniche S.P.A. Dispositif pour le contrôle automatique de l'insertion de trame dans les métiers à tisser à jet d'air
US4877064A (en) * 1987-01-26 1989-10-31 Vilminore Officine Meccaniche S.P.A. Device for the automatic control of the weft yarn feed in air looms
EP0344104A1 (fr) * 1988-05-26 1989-11-29 GebràœDer Sulzer Aktiengesellschaft Métier à tisser avec système de réglage de l'insertion de la trame
WO1989012122A1 (fr) * 1988-06-02 1989-12-14 Lindauer Dornier Ges.M.B.H. Commande d'ajutages pour metier a tisser pneumatique
US5031672A (en) * 1988-06-02 1991-07-16 Lindauer Dornier Gesellschaft Mbh Nozzle control device with closed loop control circuit for an air weaving loom
EP0401699A2 (fr) * 1989-06-06 1990-12-12 L.G.L. ELECTRONICS S.p.A. Dispositif pour compter les enroulements se déroulant d'un fournisseur de fil de trame dans un métier à tisser
EP0401699A3 (fr) * 1989-06-06 1991-01-16 L.G.L. ELECTRONICS S.p.A. Dispositif pour compter les enroulements se déroulant d'un fournisseur de fil de trame dans un métier à tisser
EP0442546A1 (fr) * 1990-02-15 1991-08-21 Picanol N.V. Dispositif fournisseur de fil de trame pour métiers à jet d'air
US5086812A (en) * 1990-02-15 1992-02-11 Picanol N.V., Naamloze Vennootschap Weft thread supplying device with rotary throttle valve in airjet weaving machines
BE1003686A3 (nl) * 1990-02-15 1992-05-19 Picanol Nv Inrichting voor het toevoeren van inslagdraad bij luchtweefmachines.
BE1006086A4 (fr) * 1991-08-12 1994-05-10 Nissan Motor Metier a jet fluide et methode pour assurer son fonctionnement.
EP2319968A1 (fr) 2009-11-09 2011-05-11 Promatech S.p.A. Système de contrôle de l'air pour l'insertion de fil de trame dans une machine à tisser pneumatique
CN102051754A (zh) * 2009-11-09 2011-05-11 普洛玛技术股份公司 用于将纬纱插在气动织机中的空气控制系统
CN102051754B (zh) * 2009-11-09 2014-07-23 意达股份公司 用于将纬纱插在气动织机中的空气控制系统
CN104790099A (zh) * 2015-04-28 2015-07-22 宁波市东盛纺织有限公司 一种具有导气杆的喷气织机
CN104790100A (zh) * 2015-04-28 2015-07-22 宁波市东盛纺织有限公司 一种喷气织机
CN104790101A (zh) * 2015-04-28 2015-07-22 宁波市东盛纺织有限公司 一种宽幅喷气织机
CN104790099B (zh) * 2015-04-28 2016-05-11 宁波市东盛纺织有限公司 一种具有导气杆的喷气织机
CN104790101B (zh) * 2015-04-28 2016-08-24 宁波市东盛纺织有限公司 一种宽幅喷气织机
US20230243075A1 (en) * 2022-01-28 2023-08-03 Tsudakoma Kogyo Kabushiki Kaisha Weft insertion method and weft insertion device for air jet loom

Also Published As

Publication number Publication date
JPS61207642A (ja) 1986-09-16
IT8519294A0 (it) 1985-01-30
ES551417A0 (es) 1986-11-16
BR8600330A (pt) 1986-10-07
IT1215235B (it) 1990-01-31
ES8700704A1 (es) 1986-11-16

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