B - Operations – Transporting – 31 – B
Patent
B - Operations, Transporting
31
B
93/71
B31B 5/60 (2006.01) B31B 5/80 (2006.01)
Patent
CA 1094374
METHOD AND APPARATUS FOR ERECTING A CARTON ABSTRACT OF THE DISCLOSURE The present invention relates to a compact high speed carton erecting and sealing machine and method employing a hori- zontal blank feeding mechanism. Carton blanks are fed into the erecting station, positioned against a stop and vacuum erected from the trailing side panel. The erected blank is maintained in a squared position and driven through the machine by flights mounted on parallel chain conveyors adjustably positioned adja- cent the long sides of the erected carton. As the erected carton is driven through the machine, the trailing and leading bottom end flaps are sequentially folded into place and then the bottom side flaps are partially folded into place. With the side flaps in 2 partially folded position, adhesive is applied to either or both the bottom end flaps and the bottom side flaps. The partially folded side flaps are then maintained in position by a fixed anvil as the carton is delivered by the conveyor to a set of squaring stops. A transversely moving platen then moves the carton laterally to clear the end stops while bringing the end and side flaps into sealing relationship under time and pressure conditions sufficient to effect adhesion between the side and end flaps. Thereafter, the erected and sealed carton is ejected from the machine by the movement of the succeeding carton into the sealing station.
319508
Gowling Lafleur Henderson Llp
International Paper Company
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