Packaging machine using two-blank carton system

Package making – Wrapping machines – Notched or corner-slit cover blanks

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Details

53387, B65B 1118

Patent

active

039568741

ABSTRACT:
A packaging machine operative to sequentially fold separate cooperating carton blanks about lading and discharge a sealed package containing the lading in an automatic operation. The packaging machine is particularly adapted to cooperate with a lading loading ram which could be provided by a conventional case packer having a discharge horn through which the ram moves a quantity of lading. The carbon blank system includes a body blank having a center panel and alternate side panels with flanges hingedly connected along the longitudinal edges of the panels and along the ends of the side panels and a cover blank having a center panel and alternate side panels. The machine includes means for positioning the body blank in a generally vertical plane opposite the loading ram, means for folding the flanges and the panels about the lading in cooperation with said loading ram to form a generally U-shaped formation, means for holding the said formation in place, conveyor means including top and bottom transport sections synchronized in their movements for moving the formation to an end flange folding station and thereafter to a discharge station, means for positioning a cover blank opposite the outlelt of the discharge station, means for moving the formation against the cover blank, means for folding the cover blank about the formation, and cam-actuated bracket means for retaining the outer facing surfaces of the folded flanges of the body blank in folded-over position until the same are engaged by the inner facing margin of the cover blank to form a sealed package or carton. Formation and sealing of the package is achieved along a horizontal path of movement.

REFERENCES:
patent: 3555776 (1971-01-01), Nigrelli et al.
patent: 3911644 (1975-10-01), Myers et al.

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