Global Patent Index - EP 1050610 A2

EP 1050610 A2 2000-11-08 - Method and device for controlling weft winding arm rotating signals in weft feeders for weaving looms

Title (en)

Method and device for controlling weft winding arm rotating signals in weft feeders for weaving looms

Title (de)

Verfahren und Vorrichtung zur Steuerung von Rotationssignale des Fadenzuführungsrohr in Fadenliefervorrichtungen für Webmaschinen

Title (fr)

Procédé et dispositif pour contrôler les signaux de rotation du bras d'enroulement du fil de trame dans les fournisseurs de trame pour métiers à tisser

Publication

EP 1050610 A2 (EN)

Application

EP 00109087 A

Priority

IT TO990369 A

Abstract (en)

The method consists in using, in order to detect the passage of at least one moving magnet (M) associated with the flywheel (VO) that rotates jointly with the weft winding arm, a first magnetic sensor and a second magnetic sensor (H1-H2) which are mutually spaced by a preset distance (D) and are adjacent to the circular path of the at least one magnet, and in sampling the signals (WSP1-WSP2) of the first and second sensors (H1-H2) in order to extract from them, as regards counting the number (NS) of turns wound on the drum (TA), transition criteria (DX -> OUT; OUT -> DX; and, vice versa, A N) which indicate that a complete rotation of said arm (BR) has occurred and that said number (NS) of turns has consequently increased or decreased. <IMAGE>

IPC 1-7 (main, further and additional classification)

D03D 47/36; B65H 51/22

IPC 8 full level (invention and additional information)

B65H 51/22 (2006.01); D03D 47/36 (2006.01)

CPC (invention and additional information)

D03D 47/367 (2013.01)

Designated contracting state (EPC)

BE CH DE LI SE

EPO simple patent family

EP 1050610 A2 20001108; EP 1050610 A3 20011128; EP 1050610 B1 20040915; DE 60013683 D1 20041021; DE 60013683 T2 20050210; IT 1307713 B1 20011114; IT TO990369 A1 20001107; IT TO990369 D0 19990507

INPADOC legal status


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