B - Operations – Transporting – 65 – H
Patent
B - Operations, Transporting
65
H
242/5
B65H 16/00 (2006.01) B26F 3/00 (2006.01) B65H 19/26 (2006.01)
Patent
CA 1192532
WEB WINDING APPARATUS AND METHOD ABSTRACT In the high speed rewinder of the present invention a parent roll of paper unwinds from a back-stand to feed a wide web of paper to a perforating means, web separ- ation mean, core-feeding means and log rewind means. The perforating means includes a stationary ledger blade and a rotating knife-blade roll which cut lines of perforations across the web. The web separation means includes a pair of operatively opposed rolls rotating in synchronism, one or which has a spiral groove therein and the other or which has means arranged to force the web of paper into the groove to tear the web within the groove. A secondary winder roll is disposed in spaced relation to the first winder roll to define a throat. A core advancing means is arranged, periodically, to bring a core into the throat, which is narrower than the outer diameter or the core. The secondary winder roll can be slowed down to cause the core to advance through the throat and pick up the leading edge or the web. A diameter control means is disposed near the secondary winder roll to limit the outer diameter of the finished log or paper with a predetermined length of web being wound on said core. Control means regulate the rotary speed or the perforation roll, the main-winder roll, the web separation roll, the secondary winder roll, the diameter control roll and - 1 - the core so that a precise length of paper web will be wound on the core, differential speed between the secondary winder roll and the diameter control roll will move the finished log into a log receiving means and differential speed between the first and second winder rolls will advance another core into the throat to pick up the leading edge of the just- severed web, advancing the core and web through the throat to repeat the sequence. - 2 -
402015
Finanziaria Lucchese S.p.a.
Ridout & Maybee Llp
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