Cylinder phase adjustment controlling apparatus for printing pre

Details Cylinder phase adjustment controlling apparatus for printing pre Cylinder phase adjustment controlling apparatus for printing pre

1993-03-24

1994-10-25

Burr, Edgar S.

Printing

Rolling contact machines

Rotary

101183, 101219, 101231, B41F 1324

Patent

active

053578600

ABSTRACT:
A cylinder phase adjustment controlling apparatus includes a plate cylinder gear, a reference point, a proximity switch, a rotary angle detector, a controller, and a counter. The plate cylinder gear is phase-adjustably fitted on a plate cylinder rotatably axially supported on a frame and coupled to a drive motor. The reference point rotates together with the plate cylinder. The proximity switch is fixed to the frame and detects the reference point. The rotary angle detector outputs a rotation pulse in accordance with rotation of the plate cylinder. The controller automatically controls the phase of the plate cylinder on the basis of an output from the rotary angle detector after the proximity switch detects the reference point. The counter counts the rotation pulse output from the rotary angle detector, and the controller stops rotation of the plate cylinder when the counter counts a predetermined number of rotation pulses corresponding to a control phase amount after a detection output is output from the rotary angle detector.

REFERENCES:
patent: 2536068 (1951-01-01), Funk
patent: 3630145 (1971-12-01), Leuenberger
patent: 3793899 (1974-02-01), Bourbonnaud
patent: 3896724 (1975-07-01), Muselik
patent: 4085674 (1978-04-01), Biggar, III
patent: 4457231 (1984-07-01), Kawaguchi
patent: 4527788 (1985-07-01), Masuda
patent: 4638734 (1987-01-01), Grossmann et al.
patent: 4716827 (1988-01-01), Wieland et al.
patent: 4735140 (1988-04-01), Wieland et al.
patent: 4785733 (1988-11-01), Hartung et al.

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