EP 1163384 A2 20011219 - METHOD FOR OPTIMIZING AND MONITORING WEFT INSERTION IN POWER LOOMS
Title (en)
METHOD FOR OPTIMIZING AND MONITORING WEFT INSERTION IN POWER LOOMS
Title (de)
VERFAHREN ZUM OPTIMIEREN UND ÜBERWACHEN DES SCHUSSEINTRAGES AUF WEBMASCHINEN
Title (fr)
PROCEDE POUR L'OPTIMISATION ET LA SURVEILLANCE DE L'INSERTION DE TRAME SUR DES METIERS A TISSER
Publication
Application
Priority
- CH 54199 A 19990322
- EP 0002541 W 20000322
Abstract (en)
[origin: WO0056964A2] The weft thread (1) is drawn off the spool (2) with the aid of a thread store (3), whereupon it passes through a yarn tension device (4) and the inventive thread force sensor (5). The force that is exerted on the weft thread is measured in a manner known per se by deflecting said thread, whereby the reaction force (7) of the thread is converted by the pressure-sensitive element (6) into an electric signal (13). The electric signal (13) delivered by the thread force sensor (5) is electronically amplified in the evaluation unit (14) and emitted in the form of a signal (15) on a display (16) which is oriented by an operator during the course of the weft thread and makes the operator aware of disturbances and corrections thereof. The evaluation unit (14) is connected via a data line (17) to the machine control system (19) which supplies it with time signals for other machine functions, e.g. the momentary angle position of the main shaft of the machine, that are involved with said weft insertion. The machine control system receives monitoring signals from the thread force sensor via the data line (18), e.g. in order to bring about a sudden halt if the thread breaks during weft insertion or to activate a machine-related means of alarm in the case of a disturbance, thus requiring the intervention of an operator.
IPC 1-7
IPC 8 full level
D03D 47/34 (2006.01); D03D 51/34 (2006.01)
CPC (source: EP KR US)
D03D 51/34 (2013.01 - EP KR US); D03J 1/005 (2013.01 - EP US)
Citation (search report)
See references of WO 0056964A2
Designated contracting state (EPC)
AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE
DOCDB simple family (publication)
WO 0056964 A2 20000928; WO 0056964 A3 20001228; AT E249539 T1 20030915; CN 1108406 C 20030514; CN 1347468 A 20020501; DE 50003645 D1 20031016; EP 1163384 A2 20011219; EP 1163384 B1 20030910; JP 2002543297 A 20021217; JP 4546649 B2 20100915; KR 100432266 B1 20040522; KR 20010108375 A 20011207; US 6467512 B1 20021022
DOCDB simple family (application)
EP 0002541 W 20000322; AT 00922537 T 20000322; CN 00806466 A 20000322; DE 50003645 T 20000322; EP 00922537 A 20000322; JP 2000606820 A 20000322; KR 20017012095 A 20010922; US 93736802 A 20020115