Patent · US Expired

Method and apparatus for piecing a broken yarn at an open end spinning station

US5865022A · kind A · utility

1Cited by

4References

11Claims

0Family size

Inventors

Eike Thomas Bode · Birkenfeld, DE
Gerd Jansen · Viersen, DE

Key dates

Filing date	Sep 8, 1997
Grant date	Feb 2, 1999
Priority date	—
Expiry date	Sep 8, 2017

Classification

Technology area (CPC D)Textiles; Paper
CPC primaryD01H4/50
WIPO fieldTextile and paper machines
WIPO sectorMechanical engineering

Abstract

A method and apparatus for piecing a broken end of yarn at an open end spinning station utilizing a piecing cart servicing the spinning station. To repair the yarn break, a defined yarn length is unwound off the winding bobbin and is temporarily stored in a yarn reservoir disposed between a yarn draw-off device and a lap drive of the piecing cart. Subsequently, the winding bobbin is acceleratively driven by the lap drive sufficiently in advance of actuating the yarn draw-off device to achieve a predetermined winding speed as of the time the withdrawal of spun yarn from the spinning unit resumes.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.