B - Operations – Transporting – 65 – H
Patent
B - Operations, Transporting
65
H
B65H 18/08 (2006.01) B65H 18/26 (2006.01) B65H 19/22 (2006.01)
Patent
CA 2150168
A center wind assist mechanism for use in a web winding device for winding a substantially continuous web onto a reel bar. The winding device includes a driving drum that maintains a first nip engagement with the reel bar to rotate the reel bar and transfer the web passing over a surface of the driving drum onto the reel bar. The web winding device further includes a transfer mechanism for moving the reel bar from a primary winding position to a secondary winding position while maintaining the reel bar in nip driving engagement with the driving drum. The web winding device is characterized by a center wind assist mechanism for applying a driving torque to the reel bar as the reel bar moves from the primary winding position to the secondary winding position. The center assist winding mechanism includes a drive assist support arm pivotally mounted to the transfer mechanism to move therewith and pivot relative thereto. A driving wheel is rotatably connected to the drive assist support arm. A drive mechanism and transmission mechanism cooperate to rotatably drive the driving wheel. A tensioning mechanism is connected to the transfer mechanism to maintain the driving wheel in driving and torque transfer relation with a peripheral surface portion of the reel bar. The center assist drive mechanism insures a more distributed nip pressure being applied across the web passing between the reel bar and winding drum during this initial phase of winding.
Craig Wilson And Company
Kremar Djuro
Valmet Montreal Inc.
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