Method and device for winding cross-wound bobbins

摘要

Method and apparatus includes determining the actual outer diameter of a bobbin or empty casing in the axial region thereof upon which a thread is being taken up. The drive velocity of the bobbin or empty casing is then changed relative to operating velocity as a function of the determined actual outer diameter of the bobbin or empty casing. Such adjustment corrects the circumferential velocity of the bobbin or empty casing in the take-up region of the thread for correspondence with the thread supply velocity. Otherwise, the circumferential velocity in such take-up region would deviate from the thread supply velocity on account of the conicity of the bobbin or empty casing.