Textile machine thread-winding bobbin is clamped to drive shaft by the radial action of a pneumatically-operated piston moving axially over a wedge

摘要

A textile machine has a bobbin with a tubular core resting on and engaging with a drive shaft. The bobbin core esp. is clamped to the drive shaft by a pneumatically-operated clamp operated by the axial motion of a piston over a ramp, converting the axial thrust into radial thrust. The piston is located within the bobbin core.