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EP0090877A1 - Gripper shuttle for looms - Google Patents

Gripper shuttle for looms Download PDF

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Publication number
EP0090877A1
EP0090877A1 EP82103862A EP82103862A EP0090877A1 EP 0090877 A1 EP0090877 A1 EP 0090877A1 EP 82103862 A EP82103862 A EP 82103862A EP 82103862 A EP82103862 A EP 82103862A EP 0090877 A1 EP0090877 A1 EP 0090877A1
Authority
EP
European Patent Office
Prior art keywords
projectile
nozzle
clamping body
weft thread
clamp
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.)
Granted
Application number
EP82103862A
Other languages
German (de)
French (fr)
Other versions
EP0090877B1 (en
Inventor
Paul Lincke
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
Publication of EP0090877A1 publication Critical patent/EP0090877A1/en
Application granted granted Critical
Publication of EP0090877B1 publication Critical patent/EP0090877B1/en
Expired legal-status Critical Current

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Classifications

    • DTEXTILES; PAPER
    • D03WEAVING
    • D03JAUXILIARY WEAVING APPARATUS; WEAVERS' TOOLS; SHUTTLES
    • D03J5/00Shuttles
    • D03J5/06Dummy shuttles; Gripper shuttles

Definitions

  • the invention relates to a gripper projectile for weaving machines, with a weft thread clamp formed by an axially movable, spring-loaded clamping body and a guide nozzle for the weft thread as a counter body for receiving the weft thread inserted through a donor nozzle, and furthermore with outflow openings for the air flowing in from the nozzle.
  • the invention has for its object to provide a gripper projectile of the type defined, which is suitable for cooperation with a projectile opening mechanism of conventional design, wherein a pin moves the legs of a thread clip apart.
  • a gripper projectile of the type defined which is suitable for cooperation with a projectile opening mechanism of conventional design, wherein a pin moves the legs of a thread clip apart.
  • the advantage is achieved that the clamping body is centered in the guide nozzle during the closing movement, so that the weft thread is reliably clamped. Since the closing distance is very short, the distance covered by the projectile opener during the opening movement can also be short.
  • a gripper projectile 1 has a cavity 2 in which

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Looms (AREA)
  • Auxiliary Weaving Apparatuses, Weavers' Tools, And Shuttles (AREA)

Abstract

Das Greiferprojektil (1) für Webmaschinen weist eine Schussfadenklemme auf gebildet durch einen Klemmkörper (5) und eine Führungsdüse (4) für den von einer Geberdüse eingeblasenen Schussfaden. Der Klemmkörper (5) ist mit einer Oeffnung (10) versehen zum Oeffnen der Fadenklemme mittels eines eingeführten Oeffners (11). Das Projektil (1) ist mit Luftaustrittsöffnungen (18, 19) versehen, die mit dem Kanal (8), der bei geöffneter Fadenklemme zwischen Klemmkörper (5) und Führungsdüse (4) vorhanden ist, fluchten. Mit dem Luftstrom mitgeführter Flug verlässt somit auf direktem Weg das Projektil ohne sich darin ablagern und die Funktion der Fadenklemme beeinträchtigen zu können.The gripper projectile (1) for weaving machines has a weft thread clamp formed by a clamping body (5) and a guide nozzle (4) for the weft thread blown in by a donor nozzle. The clamp body (5) is provided with an opening (10) for opening the thread clamp by means of an inserted opener (11). The projectile (1) is provided with air outlet openings (18, 19) which are aligned with the channel (8) which is present between the clamping body (5) and the guide nozzle (4) when the thread clamp is open. A flight carried along with the air flow thus leaves the projectile directly without being deposited therein and without being able to impair the function of the thread clamp.

Description

Die Erfindung betrifft ein Greiferprojektil für Webmaschinen, mit einer Schussfadenklemme gebildet durch einen axial beweglichen, federbelasteten Klemmkörper und einer Führungsdüse für den Schussfaden als Widerkörper zum Aufnehmen des durch eine Geberdüse eingeführten Schussfadens, und weiterhin mit Ausströmöffnungen für die aus der Düse einströmende Luft.The invention relates to a gripper projectile for weaving machines, with a weft thread clamp formed by an axially movable, spring-loaded clamping body and a guide nozzle for the weft thread as a counter body for receiving the weft thread inserted through a donor nozzle, and furthermore with outflow openings for the air flowing in from the nozzle.

Bei einer bekannten Vorrichtung (CH-PS 435 141) dieser Art geschieht das Oeffnen der Fadenklemme durch Einführen der Geberdüse in das Projektil, wobei diese den Klemmkörper von der Führungsdüse abhebt.In a known device (CH-PS 435 141) of this type, the thread clamp is opened by inserting the transmitter nozzle into the projectile, which lifts the clamp body from the guide nozzle.

Der Erfindung liegt die Aufgabe zugrunde, ein Greiferprojektil der eingangs definierten Art zu schaffen, das geeignet ist zum Zusammenwirken mit einem Projektilöffnungsmechanismus herkömmlicher Bauart, wobei ein Stift die Schenkel einer Fadenklammer auseinander bewegt. Dabei sollen die am Projektil vorzunehmenden Aenderungen möglichst wenige und einfache sein. Am Projektilöffnungsmechanismus sollen keine Aenderungen nötig sein. Ungünstig bei der bekannten Vorrichtung ist die Lage der Aus- strömöffnungen für die aus der Düse einströmende Luft, so dass im Hohlraum des Projektils Turbulenzen auftreten, die bis in die Führungsdüse zurückwirken und das Einführen des Schussfadenendes erschweren. Auch besteht die Möglichkeit, das sich mitgeführter Flug in dem Projektil absetzt, und das einwandfreie Funktionieren der Fadenklemme beeinträchtigt. Eine weitere Aufgabe der Erfindung besteht daher darin, Massnahmen zu treffen, dass keine schädlichen Turbulenzen auftreten können und kein Absetzen von Flug stattfinden kann. Diese Aufgaben werden gemäss der Erfindung durch die im Kennzeichen des Anspruchs 1 angegebenen Merkmale gelöst.The invention has for its object to provide a gripper projectile of the type defined, which is suitable for cooperation with a projectile opening mechanism of conventional design, wherein a pin moves the legs of a thread clip apart. Here are forming conclusions be few and simple as possible to be performed on the projectile A. No changes should be made to the projectile opening mechanism. Unfavorable in the known device the location is the starting strömöffnun g s for the inflowing air from the nozzle so that Turbulence occurs in the cavity of the projectile, which affects the guide nozzle and complicates the insertion of the weft end. There is also the possibility that the carried flight settles in the projectile and impairs the proper functioning of the thread clamp. A further object of the invention is therefore to take measures so that no harmful turbulence can occur and flight cannot be stopped. These objects are achieved according to the invention by the features specified in the characterizing part of claim 1.

Nebst der Lösung der gestellten Aufgabe wird der Vorteil erreicht, dass sich der Klemmkörper bei der Schliessbewegung in der Führungsdüse zentriert, so dass der Schussfaden zuverlässig festgeklemmt wird. Da der Schliessweg sehr kurz ist, kann auch der vom Projektilöffner bei der Oeffnungsbewegung zurückgelegter Weg kurz sein.In addition to solving the task, the advantage is achieved that the clamping body is centered in the guide nozzle during the closing movement, so that the weft thread is reliably clamped. Since the closing distance is very short, the distance covered by the projectile opener during the opening movement can also be short.

Ein Ausführungsbeispiel des Erfindungsgegenstandes wird nachfolgend anhand der Zeichnung beschrieben. Es zeigt:

  • Fig. 1 einen Längsschnitt durch ein Projektil gemäss der Erfindung;
  • Fig. 2 eine Endansicht;
  • Fig. 3 einen Teilquerschnitt entlang der Linie III-III in Fig. 1 und
  • Fig. 4 einen Teilausschnitt.
An embodiment of the subject matter of the invention is described below with reference to the drawing. It shows:
  • 1 shows a longitudinal section through a projectile according to the invention.
  • Fig. 2 is an end view;
  • Fig. 3 is a partial cross section along the line III-III in Fig. 1 and
  • Fig. 4 shows a partial section.

Ein Greiferprojektil 1 weist einen Hohlraum 2 auf, in dem amA gripper projectile 1 has a cavity 2 in which

Claims (1)

1. Greiferprojektil für Webmaschinen, mit einer Schussfadenklemme gebildet durch einen axial beweglichen, federbelasteten Klemmkörper und einer Führungsdüse für den Schussfaden als Widerkörper zum Festklemmen des durch eine Geberdüse eingeführten Schussfadens, und weiterhin mit Ausströmöffnungen für die aus der Düse einströmende Luft, dadurch gekennzeichnet, dass der Klemmkörper (5) eine Oeffnung (10) aufweist, zum Einführen eines Projektilöffners (11), der die Fadenklemme (4 - 6) durch Abheben des Klemmkörpers öffnet, und dass die Ausströmöffnungen (18, 19) mit den dann zwischen Klemmkörper und Führungsdüse (4) gebildeten Kanal (8) fluchten.1. Gripper projectile for weaving machines, with a weft thread clamp formed by an axially movable, spring-loaded clamping body and a guide nozzle for the weft thread as a counter body for clamping the weft thread inserted through a donor nozzle, and furthermore with outflow openings for the air flowing in from the nozzle, characterized in that the clamping body (5) has an opening (10) for introducing a projectile opener (11), which opens the thread clamp (4-6) by lifting off the clamping body, and that the outflow openings (18, 19) with the then between the clamping body and guide nozzle (4) formed channel (8) are aligned.
EP82103862A 1982-04-07 1982-05-05 Gripper shuttle for looms Expired EP0090877B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH2144/82A CH654603A5 (en) 1982-04-07 1982-04-07 GRIPPER PROJECTILE FOR WEAVING MACHINES.
CH2144/82 1982-04-07

Publications (2)

Publication Number Publication Date
EP0090877A1 true EP0090877A1 (en) 1983-10-12
EP0090877B1 EP0090877B1 (en) 1985-08-21

Family

ID=4226898

Family Applications (1)

Application Number Title Priority Date Filing Date
EP82103862A Expired EP0090877B1 (en) 1982-04-07 1982-05-05 Gripper shuttle for looms

Country Status (6)

Country Link
US (1) US4488579A (en)
EP (1) EP0090877B1 (en)
CH (1) CH654603A5 (en)
CS (1) CS235318B2 (en)
DE (1) DE3265573D1 (en)
SU (1) SU1243630A3 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3832386A1 (en) * 1987-11-20 1989-06-01 Sulzer Ag PROJECT WAVING MACHINE WITH PROJECT OPENER AND PROJECT LIFTER
US7266010B2 (en) * 2005-11-28 2007-09-04 Synopsys, Inc. Compact static memory cell with non-volatile storage capability

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH193043A (en) * 1936-08-01 1937-09-30 Tefag Textil Finanz Ag Device for transferring the weft thread.
CH435141A (en) * 1965-01-22 1967-04-30 Zangs Ag Maschf Loom with rapier shuttle
US4207926A (en) * 1979-03-12 1980-06-17 Crompton & Knowles Corporation Loom projectile

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3412763A (en) * 1966-06-07 1968-11-26 Crompton & Knowles Corp Pneumatic loom

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH193043A (en) * 1936-08-01 1937-09-30 Tefag Textil Finanz Ag Device for transferring the weft thread.
CH435141A (en) * 1965-01-22 1967-04-30 Zangs Ag Maschf Loom with rapier shuttle
US4207926A (en) * 1979-03-12 1980-06-17 Crompton & Knowles Corporation Loom projectile

Also Published As

Publication number Publication date
EP0090877B1 (en) 1985-08-21
DE3265573D1 (en) 1985-09-26
CH654603A5 (en) 1986-02-28
CS235318B2 (en) 1985-05-15
US4488579A (en) 1984-12-18
SU1243630A3 (en) 1986-07-07

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