EP 1552047 A1 20050713 - METHOD FOR HOLDING A WEFT YARN, AND A JET WEAVING MACHINE, PARTICULARLY SERVING TO CARRY OUT THIS METHOD
Title (en)
METHOD FOR HOLDING A WEFT YARN, AND A JET WEAVING MACHINE, PARTICULARLY SERVING TO CARRY OUT THIS METHOD
Title (de)
VERFAHREN ZUM HALTEN EINES SCHUSSFADENS UND D SENWEBMASCHINE , INSBESONDERE ZUR DURCHF HRUNG DES VERFAHRENS
Title (fr)
PROCEDE POUR MAINTENIR UN FIL DE TRAME ET MACHINE A TISSER A TUYERES, NOTAMMENT POUR METTRE LEDIT PROCEDE EN OEUVRE
Publication
Application
Priority
- DE 0302858 W 20030828
- DE 10243404 A 20020918
- DE 10244694 A 20020924
- DE 10256830 A 20021204
Abstract (en)
[origin: WO2004029346A1] The invention relates to a method for holding a weft yarn (9) in the area of a main jet nozzle of a jet weaving machine, particularly an air jet weaving machine, particularly having multicolored pick, before a weft yarn (9) is inserted into a shed (20) formed by warp yarns (10). According to the invention, the weft yarn (9) is clamped in a direction of insertion after an injector (1) in the mixing tube of the main jet nozzle and is released shortly before insertion when a pressure pulse for inserting the weft yarn (9) is initiated by the main jet nozzle. In order to control the corresponding jet weaving machine, a clamping device (6) has a pressure sensor (7) that is connected to a compressed air source (8), a machine control (13), valves (8) and to a compressed air supply (3) of the injector (1) via signal lines (11) and (14) and via compressed air lines (15) and (17). The clamping device (6) is located between a first mixing tube section (4) and a second mixing tube section (5) to which a cutting device (18) is connected. The invention also relates to a method during which the weft yarn section is clamped, whereby holding air is only injected during the time between the capture-side arrival of a weft yarn (9) which was inserted immediately before, and the initiation of the pressure pulse for inserting the next weft yarn, which is required according to the pattern, during a released clamping.
IPC 1-7
IPC 8 full level
D03D 47/28 (2006.01); D03D 47/30 (2006.01); D03D 47/34 (2006.01)
CPC (source: EP)
D03D 47/3013 (2013.01); D03D 47/3053 (2013.01)
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PT RO SE SI SK TR
DOCDB simple family (publication)
WO 2004029346 A1 20040408; AT E356237 T1 20070315; AU 2003269683 A1 20040419; BR 0306435 A 20041026; DE 10393812 D2 20050811; DE 50306767 D1 20070419; EP 1552047 A1 20050713; EP 1552047 B1 20070307; JP 2005539161 A 20051222
DOCDB simple family (application)
DE 0302858 W 20030828; AT 03750288 T 20030828; AU 2003269683 A 20030828; BR 0306435 A 20030828; DE 10393812 T 20030828; DE 50306767 T 20030828; EP 03750288 A 20030828; JP 2005509654 A 20030828