Device and process for the storage of a yarn

US4967549A · kind A · utility

Assignee

• Schubert & Salzer Maschinenfabrik AG · DE

Inventors

• Kurt Lovas · Gaimersheim, DE
• Wolfgang Gebhardt · Friedrichsthal, DE
• Heinz Leipnitz · Ingolstadt, DE

Key dates

• Filing date: Jul 25, 1989
• Grant date: Nov 6, 1990
• Expiry date: Jul 25, 2009

Classification

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

Abstract

A device for the storage of a yarn of limited length spun on a spinning machine, comprising a suction pipe and a yarn storage chamber. The suction pipe is connected to a negative-pressure line and serves to seize the yarn by means of suction air. The yarn storage chamber is located between the negative pressure line and the suction pipe. The yarn can be aspirated into the yarn storage chamber and can be drawn off once more in the direction opposite to the direction of aspiration. The yarn storage chamber is located in a body which is rotatably mounted. In the process for the storing of the yarn, the yarn is seized by the stream of suction air and is sucked through the suction pipe into the yarn storage chamber. The yarn is accumulated against the screen surface of the yarn storage chamber until the stream of suction air in the suction pipe is weakened to a point where additional aspiration of more yarn is prevented. The yarn is then drawn out of the yarn storage chamber through the suction pipe in a direction opposite to the direction of yarn aspiration.