EP0161376A1 - Luftstrahlwebmaschine - Google Patents

Luftstrahlwebmaschine Download PDF

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Publication number
EP0161376A1
EP0161376A1 EP84810243A EP84810243A EP0161376A1 EP 0161376 A1 EP0161376 A1 EP 0161376A1 EP 84810243 A EP84810243 A EP 84810243A EP 84810243 A EP84810243 A EP 84810243A EP 0161376 A1 EP0161376 A1 EP 0161376A1
Authority
EP
European Patent Office
Prior art keywords
weft
shed
air jet
machine according
machine
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Withdrawn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
EP84810243A
Other languages
German (de)
English (en)
French (fr)
Inventor
Gianni Riboli
Stefan Svarc
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.)
Sulzer AG
Original Assignee
Sulzer AG
Gebrueder Sulzer 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 Sulzer AG, Gebrueder Sulzer AG filed Critical Sulzer AG
Priority to EP84810243A priority Critical patent/EP0161376A1/de
Priority to BR8502280A priority patent/BR8502280A/pt
Priority to JP10418185A priority patent/JPS60252749A/ja
Publication of EP0161376A1 publication Critical patent/EP0161376A1/de
Withdrawn legal-status Critical Current

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Classifications

    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
    • D03D51/00—Driving, starting, or stopping arrangements; Automatic stop motions
    • D03D51/18—Automatic stop motions
    • D03D51/44—Automatic stop motions acting on defective operation of loom mechanisms
    • 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
    • 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
    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
    • D03D49/00—Details or constructional features not specially adapted for looms of a particular type
    • D03D49/70—Devices for cutting weft threads

Definitions

  • the invention relates to an air jet weaving machine with a weft insertion nozzle arranged outside the shed and a weft deflection device arranged between it and the shed for keeping the weft away from the shed after a signal has been given to stop the loom as a result of a fault.
  • the weft deflection device In a previous machine of this type (DE-OS 32 03 892), the weft deflection device consists of a plate controlled by an electromagnet and movable in the air jet of the entry nozzle. With this type of construction, the weft thread cannot be safely kept away from the shed when the machine is stopped, but the free end of the weft thread can nevertheless get into the shed or into an adjacent part of the weaving machine, which can result in further malfunctions on the weaving machine.
  • the object of the invention is to create a weaving machine that is particularly improved in this regard.
  • the invention consists in the fact that the weft deflection device has a - transverse to the weft direction - with an opening in the air jet generated by the entry nozzle movable channel.
  • the deflection channel is a suction pipe which can be displaced from a compressed air cylinder, the free end of which has the opening which can be moved into the air jet of the entry nozzle. This increases the deflection effect, and the end of the weft thread can be fed into a waste container immediately after being cut off.
  • the weaving machine 10 contains a drawer 2, on which the reed 7 is fastened.
  • a block 13 containing a pressure cylinder 12 is fastened on the drawer 2 by means of a screw 14, which moves back and forth together with the drawer 2 and the reed 7 in accordance with arrow 15.
  • the shed 21 is formed by the warp threads 22, 23, which are controlled by strands 24, 25.
  • the reed 7 contains lamellae 17, which form a central tunnel 16, in which the weft thread 18 is drawn off and inserted by a bobbin 25.
  • the weft thread 18 runs over a weft thread store 26, a thread brake 27, an insertion nozzle 3 and a mixing tube 5.
  • the rivet stop is labeled 61, the fabric 62.
  • a piston 20 is displaceable in the cylinder 12, to which a suction pipe 1 is fastened via a rod 52 and is connected to the suction side of a fan 6 via a suction line 53.
  • Compressed air can be fed into the cylinder 12 via an air supply line 31, as a result of which the intake manifold 1 e.g. after weft breakage and delivery of a stop signal can be shifted into the upper position la shown in FIG. 3.
  • the intake manifold 1 e.g. after weft breakage and delivery of a stop signal can be shifted into the upper position la shown in FIG. 3.
  • the intake manifold 1 e.g. after weft breakage and delivery of a stop signal
  • the mode of action is as follows. If e.g. If a weft break is detected by a sensor 34 of a weft monitor device designated as a whole as 35 and a signal for stopping the weaving machine 10 is given, the monitor device 35 emits a signal via an electrical line 36 to the control magnet 37 of a valve 38, thereby this reaches the open position according to FIG. 3.
  • the air coming from a compressed air source 56 via a line 39 now passes via line 31 into the pressure cylinder 12, the piston 20 of which reaches the upper position according to FIG. 3, whereby the suction pipe 1 is moved into the position la.
  • suction pipe 1 is moved back into the lower, ineffective position according to FIG. 1.
  • the weaving machine 10 can then be switched on again and the weaving operation continued.
  • two-shot operation is provided, ie the nozzle 3 can be moved downward in FIG. 1 and a nozzle 3a with a mixing tube 5a can be moved in front of the shed 21. Then - the weft 18a can be drawn off from the bobbin 25a via the parts 26a, 27a and be entered.
  • the block 13 is arranged on a fixed part 41 of the loom frame.
  • the suction pipe 1b can be lowered from the inactive position according to FIG. 5,6 into the lower working position 1c according to FIG. 7,8, in which the opening 32 is directly in front of the blow-out opening 33 of the mixing pipe 5 of the nozzle 3.
  • the deflecting or suction pipe 1b has a curved deflecting surface 45.
  • the weft thread 18 can be deflected via it, together with the air coming from the nozzle 3 and the pipe 5, and, after cutting, can be guided into a waste container.
  • weft threads can also be deflected and guided away after cutting, as e.g. may be necessary for a weft repair (synchronization of the weft sequence).

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Looms (AREA)
EP84810243A 1984-05-18 1984-05-18 Luftstrahlwebmaschine Withdrawn EP0161376A1 (de)

Priority Applications (3)

Application Number Priority Date Filing Date Title
EP84810243A EP0161376A1 (de) 1984-05-18 1984-05-18 Luftstrahlwebmaschine
BR8502280A BR8502280A (pt) 1984-05-18 1985-05-15 Tear a jato de ar
JP10418185A JPS60252749A (ja) 1984-05-18 1985-05-17 空気噴流式織機

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP84810243A EP0161376A1 (de) 1984-05-18 1984-05-18 Luftstrahlwebmaschine

Publications (1)

Publication Number Publication Date
EP0161376A1 true EP0161376A1 (de) 1985-11-21

Family

ID=8193019

Family Applications (1)

Application Number Title Priority Date Filing Date
EP84810243A Withdrawn EP0161376A1 (de) 1984-05-18 1984-05-18 Luftstrahlwebmaschine

Country Status (3)

Country Link
EP (1) EP0161376A1 (ja)
JP (1) JPS60252749A (ja)
BR (1) BR8502280A (ja)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0228342A1 (de) * 1985-12-20 1987-07-08 GebràœDer Sulzer Aktiengesellschaft Luftstrahlwebmaschine
US4784188A (en) * 1985-12-20 1988-11-15 Sulzer Brothers Ltd. Air jet weaving machine
EP0292993A2 (en) * 1987-05-29 1988-11-30 Tsudakoma Corporation Faulty weft yarn cutting preventing device for a multicolor fluid jet loom
EP0389410A1 (de) * 1989-03-17 1990-09-26 Sulzer RàœTi Ag Vorrichtung zum Einziehen eines Schussfadens in eine Webmaschine
EP0458736A1 (de) * 1990-05-21 1991-11-27 Gebrüder Sulzer Aktiengesellschaft Schussbruchbehebung bei Projektilwebmaschinen

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3203892A1 (de) * 1981-03-02 1982-11-11 ZVS - Výzkumněvývojový ústav, koncernová účelová organizace, Brno Webmaschine
EP0094089A2 (en) * 1982-05-11 1983-11-16 Kabushiki Kaisha Toyoda Jidoshokki Seisakusho Method and apparatus for disposal of weft yarn in a jet loom

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3203892A1 (de) * 1981-03-02 1982-11-11 ZVS - Výzkumněvývojový ústav, koncernová účelová organizace, Brno Webmaschine
EP0094089A2 (en) * 1982-05-11 1983-11-16 Kabushiki Kaisha Toyoda Jidoshokki Seisakusho Method and apparatus for disposal of weft yarn in a jet loom

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0228342A1 (de) * 1985-12-20 1987-07-08 GebràœDer Sulzer Aktiengesellschaft Luftstrahlwebmaschine
US4729411A (en) * 1985-12-20 1988-03-08 Sulzer Brothers Limited Air jet weaving machine
US4784188A (en) * 1985-12-20 1988-11-15 Sulzer Brothers Ltd. Air jet weaving machine
EP0292993A2 (en) * 1987-05-29 1988-11-30 Tsudakoma Corporation Faulty weft yarn cutting preventing device for a multicolor fluid jet loom
EP0292993A3 (en) * 1987-05-29 1991-09-25 Tsudakoma Corporation Faulty weft yarn cutting preventing device for a multicolor fluid jet loom
EP0389410A1 (de) * 1989-03-17 1990-09-26 Sulzer RàœTi Ag Vorrichtung zum Einziehen eines Schussfadens in eine Webmaschine
WO1990011397A1 (de) * 1989-03-17 1990-10-04 Gebrüder Sulzer Aktiengesellschaft Vorrichtung zum einziehen eines schussfadens in eine webmaschine
US5144987A (en) * 1989-03-17 1992-09-08 Sulzer Brothers Limited Weft drawing-in device including slotted tubular guide members
EP0458736A1 (de) * 1990-05-21 1991-11-27 Gebrüder Sulzer Aktiengesellschaft Schussbruchbehebung bei Projektilwebmaschinen
US5158120A (en) * 1990-05-21 1992-10-27 Sulzer Brothers Limited Clearing a weft yarn break in a loom

Also Published As

Publication number Publication date
JPS60252749A (ja) 1985-12-13
BR8502280A (pt) 1986-01-14

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PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

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17P Request for examination filed

Effective date: 19840521

AK Designated contracting states

Designated state(s): AT BE CH DE FR GB IT LI LU NL SE

RBV Designated contracting states (corrected)

Designated state(s): BE CH DE FR GB IT LI

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION HAS BEEN WITHDRAWN

18W Application withdrawn

Withdrawal date: 19860222

RIN1 Information on inventor provided before grant (corrected)

Inventor name: RIBOLI, GIANNI

Inventor name: SVARC, STEFAN