Apparatus for use in trimming can bodies

Details Apparatus for use in trimming can bodies Apparatus for use in trimming can bodies

1989-04-13

1990-11-13

Meislin, D. S.

Work holders

Holder inserted within work aperture

Expandable mandrel

269 482, 269 483, 269254R, 269218, 269217, B23Q 314

Patent

active

049696351

ABSTRACT:
A collapsible mandrel for use in holding a can body in a process wherein a portion of the can body having uneven edges on the open end thereof is trimmed away is provided and comprises a hollow support member having a longitudinal axis and mounted at a relatively fixed location and having a plurality of axially and radially outwardly extending resilient fingers integral therewith and an elongated hollow member mounted on the hollow support member to provide for linear movement therebetween. The elongated hollow member has a bearing surface in contact with the resilient fingers so that movement of the elongated hollow member varies the radially outwardly extent of the resilient fingers so that can bodies having inner peripheral surfaces of differing inner diameters may be readily moved over the resilient fingers but wherein the resilient fingers will exert a sufficient force thereon so that the can body will rotate with the resilient fingers. A movement limiting member is mounted within the resilient fingers so as to limit the radially inward movement of the resilient fingers. A locking device is provided to prevent the rotation of the elongated hollow member.

REFERENCES:
patent: 2906226 (1956-09-01), Myrick et al.
patent: 3425251 (1966-07-01), Maytag
patent: 3581691 (1971-06-01), Ringler
patent: 3972299 (1976-08-01), Hasselbeck et al.
patent: 4416459 (1983-11-01), Morawski et al.
patent: 4783982 (1988-11-01), Hahn et al.

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