GB1075787A - Improvements in packaging machines adapted to set up cartons - Google Patents

Abstract

1,075,787. Packaging-machines. AZIONARIA CONSTRUZIONI MACHINE AUTOMATICHE ACMA-S.p.A. Aug. 11, 1964 [Aug. 20, 1963], No. 32728/64. Heading B8C. Collapsed cartons 2 in a magazine 1 are supplied to an endless conveyer 4 by a suction member 3 and are erected, filled, and closed while on the conveyer, after which the carton ends are sealed. As the member 3 transfers the carton 2 to the conveyer 4, an edge of the carton is held by an abutment on the magazine 1 thereby opening the carton; a pusher (206), Fig. 11, erects the carton against a block 5 on the conveyer. The first large end flap (208), Fig. 13, of the carton is turned over by a stationary guide (207), Fig. 14, before being folded by a reciprocating member 8. A rotary folder (201), Figs. 18-20, turns down the first of the small end flaps (209), and aids a stationary member (200) to fold the second small end flap (209). The second large end flap (210) is folded by a stationary member (300), Fig. 22. The carton is filled as it passes round a rotary device 17, and the upper end flaps closed by members like those used for closing the bottom. A rotary star wheel 21 turns each filled carton through 00 degrees while the carton is hold within facing conveyer belts (19, 20), Fig. 4, from which the carton passes to further belts (25, 26). Heated plates (28, 29) seal the carton ends via the belts. Where glue is used, the plates aid in drying the glue. Thereafter the carton passes refrigeration plates (34, 35). For packaging small quantities, heating devices 37, 38 and cooling devices 39, 40 may be used and only the main conveyer 4 of the machine be operated. In a modification, Figs. 6-8, the filled cartons accumulate against a stop after leaving the conveyer 4, whence they are moved by a pusher in a group to a sealing device of the same type as described previously, the belts being wider in order to seal several cartons simultaneously.