System for winding off of mechanically delicate long material

摘要

The roller is constructed as a decoupling roller for decoupling of the running plane of the incoming run (17) from the running plane of the outgoing run (18). The roller edges in their projection towards the feed spool (2) embrace the spool packet. With regard to the predetermined draw-off force of the partial wrap angle, the width of the spool packet and the axial distance between the feed spool and decoupling roller, the coefficient of adhesion of the surface of the decoupling roller is set to such a value that even in the two travel ends of the innermost winding positions of the spool packet the radial plane of the run-off point from the feed spool practically coincides with the radial plane of the run-on point onto the decoupling roller. An Independent claim is included for a mandrel for holding the proposed feed spool.