Patent ID: 11945186
Assignee: AZIONARIA COSTRUZIONI MACCHINE AUTOMATICHE A.C.M.A. S.P.A.
Field: Textile and paper machines (Mechanical engineering)
Classification: CPC B | IPC B

Claim 10:
11. A method for forming containers from blanks, comprising the following steps:
feeding a pre-glued blank to a respective shaping hopper having a top mouth and a bottom mouth, opposite to each other and open to define a shaping through channel and internally provided with folding features, giving the shaping channel a tapered cross-sectional size;
moving the shaping hopper provided with a blank along a feed path;
with a pushing element which is movable in such a way as to follow the shaping hopper and which has a to-and-fro operating movement towards and away from the shaping hopper along a direction perpendicular, to the feed path, pushing the blank into the shaping channel of the shaping hopper so as to determine a progressive folding of edges and/or side walls of the blank and in such a way that end flaps of the blank protrude respectively from the top mouth and the bottom mouth;
downstream of the pushing elements, folding the end flaps of the blank to produce, respectively, a top closure and/or a bottom closure.