Method and apparatus for winding textile yarn from a supply package onto a take-up package including responding to a falsely reported yarn break situation

US5301886A · kind A · utility

Assignee

• W. Schlafhorst AG & Co. · DE

Inventors

• Gregor Kathke · Viersen, DE
• Rolf Haasen · Mönchengladbach, DE
• Heribert Kargel · Viersen, DE

Key dates

• Filing date: Dec 3, 1992
• Grant date: Apr 12, 1994
• Expiry date: Dec 3, 2012

Classification

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

Abstract

The present invention provides a method and apparatus for operating a textile winding machine to wind yarn packages with the capability to verify a reported yarn break situation and to respond accordingly in the event that a yarn break has not, in fact, occurred. A sensing device at a textile winding station senses the travel of a yarn therepast as the yarn is wound from a supply package onto a take-up package. In the event of a yarn break or movement of the yarn beyond the sensing range of the sensing device, the sensor reports the absence of yarn to a control unit. The control unit responds to the signal from the sensing device by stopping the yarn winding operation and implementing a yarn re-establishment operation. The yarn re-establishment operation includes monitoring the position of a yarn end engaging member during its movement toward one of the yarn packages and querying the sensing device at a predetermined time determined in correspondence with the position of the yarn end engaging member as to the presence or absence of yarn. If the presence of yarn is reported, the control unit controls a yarn cutting device to cut the yarn ends and subsequently controls a splicing dev…