Apparatus for necking can bodies

Details Apparatus for necking can bodies Apparatus for necking can bodies

1997-10-20

1998-11-10

Hail, III, Joseph J.

Metal deforming

By use of closed-die and coacting work-forcer

Forcing work into or within closed die; e.g., forging

413 69, 72348, B21D 2200, B21D 2221

Patent

active

058327690

ABSTRACT:
An improvement in necking apparatus for forming a necked end on a can body wherein during the necking operation pressurized air moves into the interior of a can body being necked through an open end portion of a conduit in a knock out ram which knock out ram is reciprocally mounted in the necking die and wherein valve means are provided to control the amount of pressurized air flowing out through the open end portion and to retain the pressurized air in the conduit after the necking operation has been completed.

REFERENCES:
patent: 5056350 (1991-10-01), Moen et al.
patent: 5249449 (1993-10-01), Lee et al.

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