Patent ID: 6179241
Filing Date: 2001-01-30
Classification: B65H

Abstract:
A web-winding apparatus comprising:a frame,a winding roll rotatably supported on the frame for rotation about a longitudinal axis, the winding roll having an outer surface for contacting a web,a camshaft mounted in the winding roll along the axis thereof,means for rotating the camshaft at a first speed which matches the speed of the winding roll and at a second speed which is different from the speed of the winding roll,a push rod reciprocably mounted in the winding roll for reciprocating movement inwardly and outwardly along an axis which extends perpendicularly to the camshaft, the push rod having an inner end which is engageable with the camshaft and an outer end, the push rod being movable between first and second positions by the camshaft,a web-engaging assembly movably mounted on the winding roll adjacent the outer end of the push rod and including a web-engaging member, the web-engaging member being movable between a first position in which the web-engaging member is inwardly of the outer surface of the winding roll and a second position in which the web-engaging member projects beyond the outer surface of the winding roll and is engageable with a web thereon,the push rod engaging the web-engaging assembly when the push rod is in its first position to retain the web-engaging member in its first position,the push rod being movable by the camshaft when the speed of the camshaft changes between said first and second speeds so that the push rod moves away from its first position and allows the web-engaging assembly to move to its second position.