초록 ▼

Process for manufacturing cold formed shaped packaging having at least one recess made from a metal-plastic laminate 20. Examples of such shaped forms of packaging are the base parts of push-through packs or blister packs. The process is such that the laminate 20 is held between a retaining tool 5 a

Process for manufacturing cold formed shaped packaging having at least one recess made from a metal-plastic laminate 20. Examples of such shaped forms of packaging are the base parts of push-through packs or blister packs. The process is such that the laminate 20 is held between a retaining tool 5 and a die 1. The die 1 exhibits at least one opening 8 and a stamping tool 6 is driven into the die opening 8 causing the laminate to be shape-formed into the said packaging and, correspondingly, exhibiting one or more recesses. The die 1 and the retaining tool 5 exhibit facing edge regions 11,12, and within the edge region 11 the die 1 exhibits a shoulder region 13 that surrounds the die opening 8 or openings 8. The surface of the shoulder region 13 lies 0.01 to 10 mm lower than the surface of the edge region 11 of the die 1. A first stamping tool with low-friction shape-forming surface forms the metal-plastic laminate in one or more steps down to 100% of the final depth of the recess and subsequently the same or a second stamping tool 6 likewise with low-friction shape-forming surface effects the final forming of the pre-formed laminate 20 in one or more steps to at least 100% of the final depth of the recess.

대표청구항 ▼

1. Container, which comprises a container of a metal-plastic laminate with at least one recess therein, said container for holding contents in the form of individual items and manufactured by the following process:holding the laminate between a retaining tool and a die exhibiting at least one openin

1. Container, which comprises a container of a metal-plastic laminate with at least one recess therein, said container for holding contents in the form of individual items and manufactured by the following process:holding the laminate between a retaining tool and a die exhibiting at least one opening; driving a stamping tool into said at least one die opening causing the laminate to be formed into a shaped form of packaging featuring one or more recesses; wherein the die and the retaining tool exhibit a facing edge region and within the edge region the die features a shoulder region which surrounds said at least one opening in the die and the surface of the shoulder region lies lower than the surface of the edge region of the die; and wherein at least one first stamping tool including a low-friction forming surface pre-forms the metal-plastic laminate in a first step up to 100% of the final depth of the recesses, and subsequently in a second step at least one of (1) said at least one first stamping tool and (2) at least one second stamping tool including a low-friction forming surface, shape-forms the pre-formed metal-plastic laminate to at least 100% of the final depth of the recesses.