Open end spinning apparatus

US4132056A · kind A · utility

Assignee

• Schubert & Salzer · DE

Inventors

• Gerd Husges · Ingolstadt, DE
• Eberhard Grimm · Ingolstadt, DE

Key dates

• Filing date: Dec 13, 1976
• Grant date: Jan 2, 1979
• Expiry date: Dec 13, 1996

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B65H2701/31
• WIPO field: Handling
• WIPO sector: Mechanical engineering

Abstract

An open-end spinning device wherein yarn is produced in a spinning compartment and withdrawn therefrom by yarn-withdrawal rollers and a winding device. The yarn storage device is interposed between the yarn-withdrawal rollers and the winding device. A knock-off motion is positioned between the spinning compartment and the yarn withdrawal rollers for producing a signal responsive to changes in tension in the yarn. THe yarn storage device includes a roller storage which is driven in a forward direction for accumulating a supply of yarn that is to be fed to the winding device. The roller storage can also be rotated in a reverse direction for withdrawing yarn therefrom during a piecing operation. A yarn gripper is provided for gripping the yarn upon a change in tension in the yarn.