EP 3137664 B1 20180418 - METHOD TO CONTROL FEEDING A YARN AND YARN FEEDER
Title (en)
METHOD TO CONTROL FEEDING A YARN AND YARN FEEDER
Title (de)
VERFAHREN ZUR STEUERUNG DES ZUFÜHRENS EINES FADENS UND FADENZUFÜHRER
Title (fr)
PROCÉDÉ POUR COMMANDER L'ALIMENTATION D'UN FIL ET DISPOSITIF D'ALIMENTATION EN FIL
Publication
Application
Priority
EP 2014062445 W 20140613
Abstract (en)
[origin: WO2015188883A1] The invention concerns a method and yarn feeder (1) for controlling feeding a yarn (2) from the yarn feeder (1) to a textile machine (4). The yarn (2) is delivered from a yarn delivering wheel (7) of the yarn feeder (1) which is driven by driving means. A yarn tension is measured by a tension sensor (10) which is arranged between the yarn delivering wheel (7) and the textile machine (4). The yarn tension is controlled by a control device (20) controlling the driving means depending on the measured tension and a reference tension. A new value T(B) of a zero offset of the yarn tension is determine wherein the yarn (2) is present at the yarn sensor (10). The determination of the new value T(B) of zero offset is executed in a stop situation at the beginning of a start-up procedure. At first, a potential new value T ∗(B) of the zero offset is determined and then, the new value T(B) of the zero offset is verified by analysing the measured values during slowly moving back the yarn delivering wheel (7).
IPC 8 full level
D04B 15/48 (2006.01); B65H 59/38 (2006.01)
CPC (source: EP)
B65H 51/22 (2013.01); B65H 59/388 (2013.01); D04B 15/48 (2013.01); B65H 2701/31 (2013.01)
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)
WO 2015188883 A1 20151217; EP 3137664 A1 20170308; EP 3137664 B1 20180418; TW 201615912 A 20160501; TW I568903 B 20170201
DOCDB simple family (application)
EP 2014062445 W 20140613; EP 14734025 A 20140613; TW 104118864 A 20150611