EP 2642004 B1 20140514 - Yarn-feeding/recovering method for textile machines, and apparatus for carrying out such method
Title (en)
Yarn-feeding/recovering method for textile machines, and apparatus for carrying out such method
Title (de)
Garnzuführungs-/-rückgewinnungsverfahren für Textilmaschinen, und Vorrichtung zur Durchführung eines solchen Verfahrens
Title (fr)
Procédé de récupération/alimentation en fils pour machines textiles et appareil permettant de mettre en ouvre ce procédé
Publication
Application
Priority
IT TO20120261 A 20120322
Abstract (en)
[origin: EP2642004A1] A textile machine (22, 106) receives yarn (F, F') from a yarn-feeding device (12, 100) via a yarn-recovering device (32, 120) provided with a motorized reel (34, 122) having a passage (44, 124) for the yarn, which extends between an inlet port (44a, 126) open to the middle of the free end (34a, 122a) of the reel and an outlet port (44b, 126) formed on the lateral surface (34b, 122b) of the reel. The yarn-recovering device (32, 120) is operable for temporarily recovering an amount of yarn already delivered to the machine and for giving it back at a later time. The tension of the yarn (F, F'), with said reel (34, 122) in a position of minimum interference with the yarn, is maintained constant on a reference value (T_ref, T'_ref) by adjusting means (28, 102), on the basis of a measured tension signal (T_meas, T'_meas) generated by sensor means (30, 108). A consumption indicator (LE, V RP ) is obtained, which is indicative of the delivery of yarn from the yarn-feeding device (12, 100) and is independent from any operative signals from the textile machine (22, 106). If the consumption indicator (V RP , LE) detects an interruption in the delivery of yarn, the adjusting means (28, 102) are temporarily disabled and the yarn-recovering device (32, 120) is temporarily enabled to rotate at a speed modulated on the basis of the measured tension signal (T_meas, T'_meas) for maintaining the tension of the yarn constant on the reference value (T_ref, T'_ref).
IPC 8 full level
B65H 51/22 (2006.01); B65H 59/00 (2006.01); B65H 59/18 (2006.01); B65H 59/22 (2006.01); D03D 47/34 (2006.01); D03D 47/36 (2006.01)
CPC (source: EP US)
B65H 51/22 (2013.01 - EP US); B65H 59/00 (2013.01 - US); B65H 59/18 (2013.01 - EP US); D03D 47/34 (2013.01 - EP US); D03D 47/347 (2013.01 - EP US); D03D 47/361 (2013.01 - EP US); D03D 47/367 (2013.01 - EP US); D04B 15/48 (2013.01 - EP US); D04B 15/99 (2013.01 - US); D04B 35/14 (2013.01 - EP US); B65H 2701/31 (2013.01 - EP US)
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
DOCDB simple family (publication)
EP 2642004 A1 20130925; EP 2642004 B1 20140514; CN 103320945 A 20130925; CN 103320945 B 20160224; IT TO20120261 A1 20130923; US 2013248635 A1 20130926; US 2015299914 A1 20151022
DOCDB simple family (application)
EP 12008643 A 20121228; CN 201310016279 A 20130116; IT TO20120261 A 20120322; US 201313834253 A 20130315; US 201514790343 A 20150702