Method and apparatus for erecting a carton

Details Method and apparatus for erecting a carton Method and apparatus for erecting a carton

1978-06-21

1979-07-10

Baldwin, Robert D.

93 49M, 93 53M, 93 53SD, B31B 106, B31B 126, B31B 162

Patent

active

041604067

ABSTRACT:
The present invention relates to a compact high speed carton erecting and sealing machine and method employing a horizontal 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 adjacent 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 a 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.

REFERENCES:
patent: 3333514 (1967-08-01), Jones
patent: 3421415 (1969-01-01), Pearsor
patent: 3828659 (1974-08-01), Reichert
patent: 3902407 (1975-09-01), Trosdorff
patent: 3948151 (1976-04-01), Derderian
patent: 3952636 (1976-04-01), Reichert
patent: 3967434 (1976-07-01), Mancini
patent: 3987710 (1976-10-01), Reichert
patent: 4018143 (1977-04-01), Dice
patent: 4041850 (1977-08-01), Reichert
patent: 4044657 (1977-08-01), Reichert

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