Domer assembly for container-forming apparatus

Details Domer assembly for container-forming apparatus Domer assembly for container-forming apparatus

1984-10-03

1986-11-04

Gilden, Leon

Metal deforming

By use of closed-die and coacting work-forcer

Cup or shell drawing

72349, B21D 2200

Patent

active

046204342

ABSTRACT:
Apparatus for reforming an end wall of a container shell including a punch reciprocable along a path on a frame and a domer assembly at the end of the path. The domer assembly includes a domer pad and an annular forming element with biasing means between the pad, the annular forming element and the base. The biasing means for the annular forming element includes an annular chamber divided into spaced segments that each have a piston reciprocated therein and a pressurized fluid source connected thereto, while the domer pad is supported on a post that extends through a tubular column forming part of the base and has an enlarged pad at the opposite end which also is in communication with the pressurized fluid source to produce an end wall configuration that has a large outer annular arcuate portion merging with an annular flat support portion that has an upwardly-extending flat annular portion surrounding a central upward dome.

REFERENCES:
patent: 3771345 (1973-11-01), Paramonoff
patent: 4289014 (1981-09-01), Maedi
patent: 4372143 (1983-02-01), Elert

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