Device for adjusting the circumferential register of a printing

Details Device for adjusting the circumferential register of a printing Device for adjusting the circumferential register of a printing

1992-11-23

1993-08-24

Fisher, J. Reed

Printing

Rolling contact machines

Rotary

B41F 1312, B41L 3504

Patent

active

052379213

ABSTRACT:
A device for adjusting the circumferential register of a printing machine includes a gearwheel for driving a cylinder disposed coaxially therewith. Adjusting elements are connected to the gearwheel in angular position thereof for turning the gearwheel, during operation of the printing machine, over a defined angle relative to the cylinder about the common axis thereof. An adjusting device is located outside the gearwheel and is shiftable in axial direction. The adjusting device is coupled to the adjusting elements connected to the gearwheel. The adjusting elements connected to the gearwheel include at least one two-armed angle lever having a swivel axis disposed perpendicularly to the axis of the cylinder at a defined distance therefrom. The angle lever has first and second legs, the first leg being swivellably connected to the cylinder via a connecting rod at a connection location movable in tangential direction relative to the gearwheel. A cam roller is fastened to an end of the second leg. The cam roller has an axis of rotation extending perpendicularly to the axis of the cylinder. The adjusting device located outside the gearwheel includes a shifting wheel having a groove disposed outside the gearwheel in the form of an adjusting device. The contact surface of the cam roller abuts against a radial lateral surface of the groove.

REFERENCES:
patent: 3610064 (1971-10-01), Kaneko
patent: 4085674 (1978-04-01), Biggar

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