Apparatus for folding and closing the tops of folding cartons

Details Apparatus for folding and closing the tops of folding cartons Apparatus for folding and closing the tops of folding cartons

1979-03-19

1980-12-30

Baldwin, Robert D.

Package making

Closing packages and filled receptacles

By means adapted to engage outturned seam of package cover

53379, 53DIG2, B65B 704, B65B 706, B65B 5122

Patent

active

042415608

ABSTRACT:
An apparatus for folding and closing to top of folding cartons prefabricated from cut boxboard stock having an inner thermoplastic-resin liner includes a stepwise conveyor for conveying the folding cartons in a row, upright, with the fillet seam of the cartons perpendicular to the direction of travel, and a single folding, pressing and welding station having ultrasonic welding means including a vibratable tip and a folding, pressing and welding tool. The tool includes a pair of jaws and the tip, which are mounted for movement toward each other in the manner of tongs, wherein one of said jaws includes a folding wedge and an anvil above said folding wedge, and the other jaw is configured as a folding and clamping wedge. The jaws and holder are mounted on a common holder for movement into and out of engagement with the fillet seam of each container on the conveyor.

REFERENCES:
patent: 3996724 (1976-12-01), Smith

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