Method and apparatus for embossing the inside surface of a cup-s

Details Method and apparatus for embossing the inside surface of a cup-s Method and apparatus for embossing the inside surface of a cup-s

1988-03-15

1989-10-03

Larson, Lowell A.

Metal deforming

By use of tool acting during relative rotation between tool...

With tool surface orbiting around axis parallel to direction...

72344, 72354, B21D 2400

Patent

active

048708461

ABSTRACT:
A draw/emboss work station (600) of the invention includes emboss punch (594) moveable by a hydraulic system under control of a press slide (34). An emboss punch head (632) is moved downwardly into a cup-shaped article (626) to bring the article into a draw/emboss die (604). The emboss punch head (632) does not rotate while the draw die (604) does. The draw die (604) is allowed to rotate by thrust bearings (610 and 612). As the emboss punch head (632) pushes into the cup-shaped article (626) the downward rotational force is taken by the thrust bearing (612). As the emboss punch head (632) is withdrawn from the cup-shaped article (626) the upward rotational force is taken by the thrust bearing (610).

REFERENCES:
patent: 496601 (1893-05-01), Edge
patent: 4339939 (1982-07-01), Book et al.
patent: 4509353 (1985-04-01), Ike et al.

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