Open-end spinning frame with a device for replacing full bobbins with empty tubes

US4139162A · kind A · utility

Assignees

• Fritz Stahlecker · DE
• Hans Stahlecker · DE

Inventor

• Fritz Stahlecker · Geislingen an der Steige, DE

Key dates

• Filing date: May 19, 1977
• Grant date: Feb 13, 1979
• Expiry date: May 19, 1997

Classification

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

Abstract

Bobbin exchange apparatus is provided for open-end spinning machines of the type having a plurality of spinning assemblies provided with respect to bobbin holders for holding bobbins to store thread. A depot device in the form of axially movable spring clamping jaws carried by a carrier rod extending along the length of the spinning machine is provided at each spinning assembly. To effect the ejection of a full bobbin from the bobbin holders and the insertion of an empty tube from the associated depot device, a mobile servicing device is provided which includes an empty tube engaging means for clampingly engaging an empty tube in the depot device and transferring the same to the bobbin holder with movement in a single plane. A bobbin holder opening device is provided at the servicing device which opens the bobbin holder to accommodate ejection of a full bobbin and insertion of an empty tube, with the bobbin holder only being opened when the empty tube engaging device is in a position on its travel path where it supports the full bobbin, so that ejection of the bobbin is supported by the same member which inserts the empty tube. Preferred embodiments include a gauge device for preci…