B - Operations – Transporting – 65 – H
Patent
B - Operations, Transporting
65
H
B65H 18/26 (2006.01) B65H 18/08 (2006.01) B65H 19/22 (2006.01) B65H 23/195 (2006.01)
Patent
CA 2141130
A center wind assist mechanism is provided for use in a web winding device for winding a substantially continuous web onto a reel bar rotating about its center axis. 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 winding device also includes a secondary arm for engaging the reel bar to maintain the reel bar in nip driving engagement with the driving drum. The center wind assist mechanism comprises a drive assist support arm mounted to the secondary arm to move therewith. The center wind assist mechanism also includes a driving wheel rotatably connected to one end of the drive assist support arm. The center wind assist mechanism further includes tensioning apparatus, a center assist drive and transmission. The tensioning apparatus is connected to the drive assist support arm to maintain the driving wheel in driving and torque transfer relation with a peripheral surface portion of the reel bar which peripheral surface portion is off center to the center axis of the reel bar between the center axis and the driving drum. The center assist drive rotatably drives through a transmission the driving wheel. The use of the center assist drive mechanism insures that a driving assist is provided by the driving wheel. Further, the location of the driving wheel in the off center location does not add to the nip pressure being applied by the secondary arm which could adversely effect the web being wound onto the reel bar.
Craig Wilson And Company
Kremar Djuro
Valmet Montreal Inc.
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