Can base reforming

Details Can base reforming Can base reforming

1998-12-09

2000-05-09

Larson, Lowell A.

Metal deforming

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

During rotation of work

72 94, 72117, B21D 5126

Patent

active

060587539

ABSTRACT:
A method and apparatus for reforming the base of a container such as a can having a domed base. The apparatus comprises independent assemblies for rotating the can and for reforming the base profile. The base reforming assembly uses a torque shaft to twist an eccentric and actuate radial movement of a roll into contact with the can base. A stop prevents movement of this roll beyond a predetermined amount, thereby maintaining consistency of profile depth. By minimizing moving parts of the tooling, wear is limited to that which may arise from the stop alone.

REFERENCES:
patent: 3754424 (1973-08-01), Costanzo
patent: 3831416 (1974-08-01), Wolfe
patent: 4885924 (1989-12-01), Claydon et al.
patent: 5372028 (1994-12-01), Brilman et al.
British Search Report of Feb. 13, 1998.
EP Search Report of Jun. 22, 1998.

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