Apparatus for prepositioning a yarn end on spinning cops for subsequent unwinding in a bobbin winding machine

US5556046A · kind A · utility

Assignee

• W. Schlafhorst AG & Co. · DE

Inventors

• Wolfgang Irmen · Langenfeld, DE
• Helmut Kohlen · Erkelenz, DE

Key dates

• Filing date: Jul 6, 1995
• Grant date: Sep 17, 1996
• Expiry date: Jul 6, 2015

Classification

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

Abstract

An apparatus for prepositioning a yarn end on a spinning cop for subsequent unwinding in a bobbin winding machine accomplishes improved functional capabilities by providing a positionally changeable yarn guiding device as well as a yarn retaining device. A part of the yarn guiding device which comes into contact with the yarn can be moved from an active position below the upper edge of the cop into an inactive position above the cop nose. The yarn retaining device has an opening for yarn entry. By way of a control device, the yarn guiding device is controlled to take up the inactive position following the placement of nose windings about the cop nose, and a device for inserting the remaining yarn end portion into the tubular interior of the cop is then activated and the yarn retaining device is taken out of contact with the upper edge of the cop. Preferably, the yarn inserting device comprises a tubular arbor which can be positioned centrally above the cop to function as a yarn end blower nozzle.