Pre-setting of printing machines

Details Pre-setting of printing machines Pre-setting of printing machines

1980-07-23

1983-07-05

Burr, Edgar S.

Printing

Multicolor

Processes

101181, 226 27, 318603, B41M 114, B41F 516, B65H 2304

Patent

active

043911900

ABSTRACT:
Disclosed are a method and apparatus for pre-setting the register in photogravure printing machines. According to the invention, the angular position of a first printing cylinder is determined relative to a scanning device when the cylinder adjusting mark passes the scanning device. The first cylinder is held stationary and its angular position is stored upon detection of the adjusting mark. An upstream cylinder is rotated and a pulse is generated when the angular position of the upstream cylinder is rotated past the stored angular position of the first cylinder. The web distance traveled between the generation of said pulse and the detection by the scanning device of the adjusting mark of the upstream cylinder is proportional to the angular offset of the two cylinders. A signal proportion to this web distance can be used as a register positioning command.

REFERENCES:
patent: 3025791 (1962-03-01), Auerbacher
patent: 3165056 (1965-01-01), Heatley et al.
patent: 3218969 (1965-11-01), Nagel
patent: 3653322 (1972-04-01), Richardson
patent: 3896377 (1975-07-01), Richardson
patent: 3963902 (1976-06-01), Dowd
patent: 4067760 (1978-01-01), Nelson
patent: 4070965 (1978-01-01), Aenishaenslin et al.
patent: 4129238 (1978-12-01), Herd
patent: 4147104 (1979-04-01), Zernov et al.
patent: 4214524 (1980-07-01), Corse
patent: 4243925 (1981-01-01), Gnuechtel
patent: 4366753 (1983-01-01), Glanz et al.
"Intel Component Data Catalog" 1978 pp. 11--11-11--17.

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