Patent ID: 6105627
Filing Date: 2000-08-22
Classification: D03D

Abstract:
A method for controlling weft yarn insertion in a loom, the method comprising the steps of:braking the weft yarn (Y) being inserted into the loom (D) as the end of weft yarn insertion approaches with a braking force applied by a controllable yarn deviation brake (B) positioned between a weft feeder (M) and a warp shed (F) of the loom (D) and causing a deviation of the yarn deviation brake (B) from a starting position;reducing a tension peak of the weft yarn (Y) while reducing the deviation of the yarn deviation brake (B) towards the starting position by using a tension of the weft yarn (Y) so as to press the weft yarn (Y) against an edge of fabric being woven by a reed (R); andcutting the weft yarn (Y) inserted in the warp shed (F) to a first length;wherein, after the steps of braking the weft yarn and reducing the tension peak and while inserting the weft yarn, the braking force of the yarn deviation brake (B) is reduced to a reduced braking force correlated to a yarn tension value which prevails up to the cutting step.