Die assembly for forming openings in workpieces

Details Die assembly for forming openings in workpieces Die assembly for forming openings in workpieces

1976-02-05

1977-02-22

Yost, Frank T.

Cutting

By tool inside hollow work

One tool having compound motion

83191, B26F 102

Patent

active

040086380

ABSTRACT:
A die assembly especially adapted for forming bottom and side openings in a cup-shaped container comprises a base having a cavity therein for the accommodation of the container and a plug movable into and out of the cavity and being of such size as to fit within the container. The plug carries a plurality of springy punches having free ends which project beyond the corresponding end of the plug and which are operable to punch holes in the bottom of the container. The plug carries a floating cam ring provided with means responsive to predetermined movement of the plug into the cavity to cam the punches laterally of the plug and form openings in the side of the container.

REFERENCES:
patent: 750746 (1904-01-01), Woodburn
patent: 1883079 (1932-10-01), Strickland
patent: 1920303 (1933-08-01), Grotnes
patent: 2320272 (1943-05-01), Friden
patent: 3259003 (1966-07-01), Griffin

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