B - Operations – Transporting – 65 – B
Patent
B - Operations, Transporting
65
B
156/43
B65B 11/04 (2006.01)
Patent
CA 1165224
ABSTRACT OF THE DISCLOSURE A spiral wrapping apparatus provided with a mechanical closure device is used to tie the leading and trailing edges of a film web which have been overwrapped around a plurality of vertically stacked units to form a unitary package. The leading edge of material from the film dispenser is held by a clamp mechanism to a turntable. As the turntable is rotated to wrap the load, the wrapping material is stretched and the trailing end of the material is formed into a rope-like configuration which is carried on the mechanical closure device to a position adjacent the clamped leading end of material with the leading and trailing ends then being tied together. The turntable clamp mechanism releases the leading end of the film web, extends away from the edge of the turntable and clamps the trailing end of the material web behind the tie point at which time the trailing end is severed by a cutter device between the tie point and the clamp mechanism, allowing the tied ends of the wrap to be carried forward toward the wrapped load by the memory of the stretch material seeking its original state. The turntable clamp mechanism then is transported back toward the turntable edge drawing with it the new leading end of material with which to begin the next wrapping cycle.
372685
Lantech Inc.
Stewart & Kolash Ltd
LandOfFree
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