Method and apparatus for winding cross-wound bobbins driven in a rotary manner

US6439499B2 · kind B2 · utility

Assignee

• W. Schlafhorst AG & Co. · DE

Inventor

• Manfred Lassmann · Nettetal, DE

Key dates

• Filing date: Feb 23, 2001
• Grant date: Aug 27, 2002
• Expiry date: Mar 19, 2021

Classification

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

Abstract

A traversing yarn guide (5) that is moved back and forth produces cross winding of yarn on a bobbin at each winding head of a textile spinning or winding machine in order to wind cross-wound bobbins. After a yarn interruption, an auxiliary yarn guide (4) in an active position keeps the yarn in a position that is raised out of the traversing yarn guide (5). In a rest position (40′), the auxiliary yarn guide (4) does not influence the yarn and the traversing yarn guide (5) can grasp and take the yarn to be wound from the auxiliary yarn guide (4). In order to assure a reliable insertion of the yarn (3) into the traversing yarn guide (5) and to assure its correct grasping of the yarn (3), the yarn (3) assumes an initial position within the traversing range after the yarn interruption, which position is set by the auxiliary yarn guide (4) in the active position, before the yarn (3) is lowered into the stationary traversing yarn guide (5) by a position change of the auxiliary yarn guide (4) into the rest position (4′).