EP0323568A1 - Dispositif pour l'insertion contrôlée par programme de la duite dans deux foules différentes - Google Patents

Dispositif pour l'insertion contrôlée par programme de la duite dans deux foules différentes Download PDF

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Publication number
EP0323568A1
EP0323568A1 EP88119784A EP88119784A EP0323568A1 EP 0323568 A1 EP0323568 A1 EP 0323568A1 EP 88119784 A EP88119784 A EP 88119784A EP 88119784 A EP88119784 A EP 88119784A EP 0323568 A1 EP0323568 A1 EP 0323568A1
Authority
EP
European Patent Office
Prior art keywords
nozzle
weft
program
branch
inflow
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Withdrawn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
EP88119784A
Other languages
German (de)
English (en)
Inventor
Jiri Dipl.-Ing. Zlatohlávek
Petr Dipl.-Ing. Velechovsky
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.)
Elitex Zavody Textilniho
Elitex Koncern Textilniho Strojirenstvi
Original Assignee
Elitex Zavody Textilniho
Elitex Koncern Textilniho Strojirenstvi
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 Elitex Zavody Textilniho, Elitex Koncern Textilniho Strojirenstvi filed Critical Elitex Zavody Textilniho
Publication of EP0323568A1 publication Critical patent/EP0323568A1/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Withdrawn legal-status Critical Current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
    • D03D47/3006—Construction of the nozzles
    • D03D47/3013—Main nozzles
    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
    • D03D33/00—Multiple looms, i.e. two or more looms assembled together, whether or not they have mechanisms in common

Definitions

  • the invention relates to a device for program-controlled weft insertion into two different compartments of a jet loom.
  • a device for knocking two weft threads into two different compartments of a weaving machine in which the compartments are arranged side by side or one above the other. When compartments are arranged next to one another, the impact device is accommodated between the compartments; it is the so-called middle stroke.
  • a two-color patterning can be achieved by changing the program of the nozzles through which the weft thread is inserted into the compartment, the weft thread being fed continuously to the two weft weft systems.
  • devices are known which either rotate the nozzles by 180 ° or convey the weft from one side to the other with compressed air. The disadvantage of these devices is that they are complicated and consequently also expensive.
  • a weaving machine has a nozzle with two outlets and with a single common supply of the printing medium, which is directed program-controlled into one or the other outlet branch.
  • Advantages of this arrangement are a substantial reduction in the dynamic forces and the possibility of tracking the impact channel with the impact device and thus utilizing the entire impact time. Another advantage is that the weft is adjusted from one branch of the exit chamber to the other by direct flow of the printing medium and therefore very reliably.
  • a nozzle 1 arranged, for example, on a drawer of the weaving machine, not shown, between two compartments contains a nozzle body 11 in which a mixing compartment 12 and nozzle cores 13 are provided.
  • a pressure medium flows through a lateral connection 14 into the mixing compartment 12, which is designed as an annular chamber and to which an elongated outlet chamber 15 connects.
  • the entire nozzle 1 is pivotally mounted on a pin 9.
  • an extension 8 Opposite the mouth of the exit chamber 15 there is an extension 8 which has two opposing tube branches 6, 7. Each tube branch 6, 7 has an inclined, facing towards the outflow end of the tube 15 flow section and a straight flow section in the drawing plane.
  • the pressure medium passes through the connection 14 into the mixing compartment 12 and from there through the outlet chamber 15 into the right tube branch 6 of the attachment 8.
  • nozzle 1 with the outlet chamber 15 is pivoted about the pin 9, so that the pressure medium flows into the left branch 7 of the neck 8 of the outlet chamber 15.
  • the device according to the invention is arranged at least twice one above the other.
  • the choice of the starting direction of the printing medium and consequently the weft impact is determined by the weaving program, according to which the pin 9 is adjusted.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Looms (AREA)
EP88119784A 1987-12-02 1988-11-28 Dispositif pour l'insertion contrôlée par programme de la duite dans deux foules différentes Withdrawn EP0323568A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CS8737/87 1987-12-02
CS873787A CS276996B6 (en) 1987-12-02 1987-12-02 device for weft picking into two different sheds of nozzle loom

Publications (1)

Publication Number Publication Date
EP0323568A1 true EP0323568A1 (fr) 1989-07-12

Family

ID=5438367

Family Applications (1)

Application Number Title Priority Date Filing Date
EP88119784A Withdrawn EP0323568A1 (fr) 1987-12-02 1988-11-28 Dispositif pour l'insertion contrôlée par programme de la duite dans deux foules différentes

Country Status (2)

Country Link
EP (1) EP0323568A1 (fr)
CS (1) CS276996B6 (fr)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2048934A1 (de) * 1969-10-08 1971-04-22 Ehtex Zavodytextilmho strojirenst vi generalnirzeditelstvi, Reichenberg (Tschechoslowakei) Webverfahren fur schutzenlose Webstuhle und Einrichtungen zur Durchfuhrung dieses Verfahrens
GB2079332A (en) * 1980-06-24 1982-01-20 Eleitex Koncern Textilniho Str Multiple jet weaving looms
GB2139654A (en) * 1983-05-13 1984-11-14 Elitex Zavody Textilniho A device for inserting two weft threads into two warp sheds in a loom with central jet insertion

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2048934A1 (de) * 1969-10-08 1971-04-22 Ehtex Zavodytextilmho strojirenst vi generalnirzeditelstvi, Reichenberg (Tschechoslowakei) Webverfahren fur schutzenlose Webstuhle und Einrichtungen zur Durchfuhrung dieses Verfahrens
GB2079332A (en) * 1980-06-24 1982-01-20 Eleitex Koncern Textilniho Str Multiple jet weaving looms
GB2139654A (en) * 1983-05-13 1984-11-14 Elitex Zavody Textilniho A device for inserting two weft threads into two warp sheds in a loom with central jet insertion

Also Published As

Publication number Publication date
CS276996B6 (en) 1992-11-18
CS8708737A1 (en) 1990-12-13

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