Inking arrangement

Details Inking arrangement Inking arrangement

1992-05-26

1994-03-15

Fisher, J. Reed

Printing

Inkers

Roller

B41F 3106, B41F 3132

Patent

active

052938190

ABSTRACT:
An inking arrangement has a structure in which a printing ink extracted from an inking source by an inking roller is transferred to an ink applying roller through an ink roller train including a plurality of inking rollers and the printing ink is then transferred to a scanning area of a plate cylinder from the ink applying roller. A doctor device is disposed above a top portion of an outer peripheral surface of the ink applying roller, the doctor device being circumscribed with the top portion at an acute angle on a roller rotating direction of the ink applying roller to scrape out an ink remaining on the outer peripheral surface of the ink applying roller as well as to clean the surface. A plurality of ink roller trains may be disposed so as to include, for example, a smoothing ink roller train and a finishing ink roller train, each including a doctor device circumscribing the outer peripheral surface of the ink applying roller contacting the plate cylinder. In this arrangement, the smoothing ink roller train may be composed as a unit rotatable around a spindle of one of the rollers so as to outwardly release the doctor device.

REFERENCES:
patent: 4527479 (1985-07-01), Dahlgren et al.
patent: 4542693 (1985-09-01), Mourrellone
patent: 4602564 (1986-07-01), Sakamoto et al.
Patent Abstracts of Japan, vol. 014, No. 495 (M-1041) 29 Oct. 1990.
Patent Abstracts of Japan, vol. 016, No. 523 (M-1331) 27 Oct. 1992.
Patent Abstracts of Japan, vol. 014, No. 281 (M-0986) 18 Jun. 1990.

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