Patent ID: 6739357
Filing Date: 2004-05-25
Classification: D03D

Abstract:
A device for smoothening (the) unwinding from (the) a cylinder of (the) yarn loops forming (the) a weft reserve in a weft supplier for a fluid jet loom having an electrically controlled finger for stopping the weft yarn and capable of supplying a predetermined weft length to a weft brake, which is inserted in (the) a path extending from (between) the supplier (and) to the loom, comprising a pneumatic device arranged between the supplier and the weft brake and capable of subjecting the yarn to a fluid flow, the pneumatic device having at least one motion component directed in (the) a running direction of the yarn, which, independently of (the) dimensional and superficial characteristics of the yarn and of (the) efficiency of (the) a modulated braking device mounted in the same path, maintains the yarn constantly under mechanical tension downstream of said electrically controlled (stop) finger, whereby a slackening of the loops wound on (the) a terminal portion of the cylinder of the supplier, upstream of said (stop) electrically controlled finger, is prevented.