Carton forming machine

Details Carton forming machine Carton forming machine

1976-09-13

1978-01-03

Coan, James F.

93 52, B31B 326

Patent

active

040660087

ABSTRACT:
A forming machine which permits a preformed corrugated board blank to be manually fed into one end of the machine, which blank has the rear flaps manually folded over and held until they are engaged by hold-down devices on the machine. The blank is moved through the machine by a drive belt and is sequentially acted upon by a folding structure which folds over the front corner tabs. A glueing device applies adhesive to the side flaps, and a further folding structure then folds over the side flaps for adhesive securement to the previously-folded corner flaps. The folding structure for the front corner tabs is nonpowered and includes levers for lifting the front tabs in response to movement of the tabs into engagement therewith, following which the front tabs are appropriately folded over while the side flaps pass beneath the lifting levers.

REFERENCES:
patent: 2108334 (1938-02-01), Hayes
patent: 2291063 (1942-07-01), Staude et al.
patent: 2947229 (1960-08-01), Caresio
patent: 3388641 (1968-06-01), Gobel
patent: 3605585 (1971-09-01), Borders

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