B - Operations – Transporting – 65 – H
Patent
B - Operations, Transporting
65
H
B65H 19/10 (2006.01) B65H 16/10 (2006.01) B65H 19/18 (2006.01) B65H 19/20 (2006.01)
Patent
CA 2111817
ABSTRACT A strip unwinding machine is provided for supplying a continuous strip of thin flexible material by unwinding strip from successive rolls thereof. The strip unwinding machine has a pair of laterally spaced tracks for receiving opposite end portions of a shaft on which a roll of strip is mounted. A transfer assembly is provided for moving a new roll and shaft along said tracks from a loading position to an unwinding position, a rotatable unwinding roller is located at the unwinding position, and there is means for rotating the unwinding roller. The transfer assembly is also operable to urge the roll against the unwinding roller and cause the roll to be rotated thereby with consequent unwinding of the strip from the roll. At least one guide roller is provided to guide the unwound strip around a portion of the unwinding roller and then out of the machine. A raising assembly is operable to raise a nearly empty roll and shaft at the unwinding position upwardly from said tracks and from said transfer assembly while maintaining engagement of the roll with the unwinding roller to enable a new roll and shaft to be brought to the unwinding position by the transfer assembly, and a cutting assembly is operable to cut the strip from the nearly empty roll when the new roll is brought into engagement with the unwinding roller by the transfer assembly to cause the last portion of the strip unwound from the nearly empty roll to adhere to an initial portion of the strip on the new roll so as to continuously feed strip from the machine.
Gowling Lafleur Henderson Llp
Planata Mirek
LandOfFree
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