Mandrel trip mechanism for can printers

Details Mandrel trip mechanism for can printers Mandrel trip mechanism for can printers

1975-12-01

1977-07-26

Crowder, Clifford D.

Printing

Special article machines

Rotating object

101247, B41F 1722

Patent

active

040375307

ABSTRACT:
A pocket mandrel wheel having mandrels mounted on mandrel arms that pivot to move the mandrels laterally to prevent the mandrels from contacting an associated printing wheel. The mandrel arms are attached to the mandrel wheel by a pivot arm that controls the radius of the mandrels line of motion as the mandrel wheel rotates. The pivot arm causes the mandrel arm to rotate the mandrel in response to an electronic system that detects improperly seated cans on the mandrels. The pivot arm rests against an interposer block having a recessed step, and the mandrel is withdrawn when the block is moved in response to a signal from the electronic system so that the pivot arm rests against the recessed portion of the block. The movement of the block is controlled by a mechanical system that moves the pivot arm away from the block prior to the time when the mandrel may be tripped.

REFERENCES:
patent: 3356019 (1967-12-01), Zurick
patent: 3388686 (1968-06-01), Cohan
patent: 3496863 (1970-02-01), Cvacho et al.
patent: 3613571 (1971-10-01), Russell et al.
patent: 3665853 (1972-05-01), Hartmeister et al.
patent: 3851579 (1974-12-01), Zurick

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