Overfeed roller assembly, textile machine, and method of adjusting tension in a running yarn

摘要

An overfeed roller assembly for use on a rotating drive shaft of a textile machine is adapted for adjusting downstream tension in a continuous moving length of yarn. The overfeed roller assembly comprises a base assembly designed for mounting on the drive shaft, and an annular yarn tension adjuster carried by the base assembly. The tension adjuster comprises opposing closely spaced yarn-contacting walls. The yarn-contacting walls define a shallow generally serpentine depression in the tension adjuster adapted for receiving the continuous moving length of yarn. Yarn tension downstream of the roller assembly is thereby reduced as the moving yarn meanders through the tension adjuster in frictional contact with the yarn-contacting walls of the serpentine depression.

主权项

1. An overfeed roller assembly for use on a rotating drive shaft of a textile machine and adapted for adjusting downstream tension in a continuous moving length of yarn, said roller assembly comprising:
a base assembly designed for mounting on the drive shaft; a plurality of arcuate yarn tension adjusters carried by said base assembly, and wherein said base assembly comprises a mounting sleeve adapted for being affixed to the drive shaft, and first and second opposing end caps carried by the mounting sleeve and cooperating to secure said arcuate tension adjusters therebetween, each tension adjuster comprising opposing closely spaced yarn-contacting surfaces defining a pathway along said tension adjuster adapted for receiving the continuous moving length of yarn, whereby yarn tension downstream of said roller assembly is reduced as the moving yarn passes through said arcuate tension adjusters in frictional contact with the yarn-contacting surfaces of the pathway.