CASE ERECTOR AND SEALER USING HIGH SPEED COLD-CURE ADHESIVE

摘要

A case erecting and sealing apparatus (1) for erecting packaging cases, boxes and cartons from the flat state includes case puncturing and gripping pins (11), glue spray heads (20) for spraying adhesive on to the interior surfaces of flaps (55) of the case (54) while the flaps are in a semi-open position, a pressure plate (24) for subjecting the minor and major flaps of the erected cases to compression so as to secure the flaps so as to allow the case, box or carton so formed to be filled with consumer goods subsequently. A high-speed cold adhesive curing process and apparatus are disclosed, for use in the assembly and fastening together of fibrous surfaces such as the surfaces of corrugated Kraft paper cardboard boxes. The process for adhering two fibrous surfaces together by means of a liquid cold-cure adhesive comprises spraying the adhesive on to the interface surface of one of the fibrous surfaces in a thin discrete particle pattern and then pressing the two fibrous surfaces together under high pressure sufficient to cause the solvent carrier in the cold-cure adhesive to disperse into the interstices of the fibres of the two surfaces, thereby enabling the coldcure adhesive particles to secure the two surfaces together rapidly.