B - Operations – Transporting – 65 – H
Patent
B - Operations, Transporting
65
H
242/38
B65H 18/16 (2006.01) B65H 19/28 (2006.01) B65H 19/30 (2006.01)
Patent
CA 1321181
(57) Abstract The invention relates to a method and apparatus for on-machine winding of a web. in which a Pope reeling drum (10) is used, over which the web (W) to be wound passes. A reel spool (11) is driven by so-called centre drive. New reel spools (11') are brought into connection with the reeling drum. after which the web (W) is conducted away from a fully wound roll to to be wound onto a new reel spool. The method comprises, in combination, the following steps: an empty reel spool (11') is brought into the grip of primary arms in such a way that bearing members (25) at both ends of the reel spool (11') are being supported by guiding elements at each end of the reeling drum (10) in such a manner that the outer shell of the reel spool (11') is not engaged with the reeling drum (10). The empty reel spool (11'), preaccelerated to winding speed, is brought into nip contact with the rotating reeling drum (10), at the sides of which guiding plates (20) provided with recesses (21) are attached, at which recesses the reel spool (11') is placed. through which nip the web (W) to be wound passes. Due to said nip contact, or only after it, the web is breaks off or is severed by means of a double-sided adhesive tape wrapped round the reel spool (11'), whereby the web (W) begins to wind onto the empty reel spool (11) and the winding is continued by centre drive of the reel spool (11) and/or nip drive until the roll is fully wound, after which the above steps are repeated. The winder in accordance with the invention can, with an auxiliary device, also be driven by conventional nip drive. (Fig. 1)
591644
Gowling Lafleur Henderson Llp
Valmet-Ahlstrom Inc.
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