Device for manufacturing shaped forms of packaging

Details Device for manufacturing shaped forms of packaging Device for manufacturing shaped forms of packaging

1996-02-15

1997-09-09

Larson, Lowell A.

Metal deforming

By use of closed-die and coacting work-forcer

Cup or shell drawing

723792, 72350, B21D 2200, B21D 2221

Patent

active

056644540

ABSTRACT:
Device for manufacturing cold-formed shaped forms of packaging out of a metal-plastic laminate where the said device contains a die with at least one die opening, in the die opening a stamp which may be driven by the die, and a retaining tool as a clamping facility that holds the laminate securely between the die and the clamping facility. The die and the retaining tool feature a facing edge region and the die, within the edge region, a shoulder region that surrounds the die opening, and the surface of the shoulder region lies 0.01 to 10 mm lower than the surface of the edge region of the die. Parts or in particular the whole of the shoulder region may be covered with a surface layer of low friction characteristics. The metal-plastic laminate is held clamped between the edge of the die and the edge of the retaining tool, and the stamp draws and stretches the part of the laminate in the region of the shoulder over the shoulder into the die opening.

REFERENCES:
patent: 2873709 (1959-02-01), Celovsky
patent: 3685338 (1972-08-01), Hoffman
patent: 4195510 (1980-04-01), Juergens
patent: 4532793 (1985-08-01), Bezold
patent: 4563325 (1986-01-01), Coffman

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