METHOD AND DEVICE FOR PRODUCTION OF CAN WITH FOLD LINES

摘要

A can, and device and method for producing same, includes two circular end elements forming a base and lid. The can further includes a sleeve which has fold lines forming edges, the can sleeve having a circular cross-sectional area at both ends and a polygonal-sectional area in its central region. The polygonal cross-sectional area in the central region is at most decagonal.

主权项

1. Method for production of a can with fold lines, wherein a can sleeve (2) having edges (1) parallel to the can axis, which is closed all round and present in a polygonally prefolded form, is folded out and initially brought into a circular shape at an opening and is provided with a circular first end element (4), whereupon, after filling of the can, the can sleeve (2) is also brought into a circular shape at its other opening and is provided with a circular second end element (5), characterized in that a can sleeve (2) having at most a decagonal cross-sectional area is used and the circular shape is achieved by at least one of drawing the can sleeve (2) onto a cylindrical intermediate shaping mandrel (3), which is pulled off again after mounting of the first end element (4), or by applying at least two intermediate shaping jaws (6) from the outside.