Case opener and bottom sealer

Details Case opener and bottom sealer Case opener and bottom sealer

1976-07-27

1979-01-09

Lake, Roy

Sheet feeding or delivering

Delivering

Rotary conveyor

271150, 93 49R, B31B 180

Patent

active

041332547

ABSTRACT:
A case opener and bottom sealer machine that includes a frame, a conveyor assembly on the frame for stacks of flat folded case blanks, a lift assembly on the frame that includes suction cups for grippingly engaging the uppermost blank of the adjacent stack and elevating the gripped blank, longitudinally elongated rails on the frame for supporting a blank in an erect condition as it is moved therealong, a case erect assembly mounted on the frame for opening the gripped blank to an erect condition and after the erect blank is released by the cups move the erect blank along the rails, folder mechanism for folding the minor flaps at one end of the erect blank and thence partially fold the major flaps of the erect blank, a glue device for applying glue to the folded minor flaps, a compression assembly for completing the folding of the major flaps and holding the folded flaps under compression to provide a good seal, and controls for automatically operating the conveyor, erect, and compression assemblies and the glue device.

REFERENCES:
patent: RE27631 (1973-05-01), Berney
patent: 3226109 (1965-12-01), Thompson et al.
patent: 3477349 (1969-11-01), Berney
patent: 3608440 (1971-09-01), Reichert et al.
patent: 3620138 (1971-11-01), Neol et al.
patent: 3776544 (1973-12-01), Watson et al.

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