Method and apparatus for determining doctor blade position in a

Details Method and apparatus for determining doctor blade position in a Method and apparatus for determining doctor blade position in a

1975-06-06

1976-09-21

Burr, Edgar S.

Printing

Intaglio

Rotary

101157, 101169, 101335, 101364, B41F 910

Patent

active

039812383

ABSTRACT:
A method and apparatus for determining the relative position between a doctor blade and a printing cylinder in a rotogravure printing process in which the thickness of the layer of residual ink which is allowed to pass by the doctor blade is used as a control valve. The thickness of the residual ink is determined by determining the amount of the attenuation caused by the residual ink to a beam of light. In one embodiment a laser beam is impinged upon the residual ink on the printing cylinder and the portion of the laser beam which is reflected, absorbed, and scattered by the residual ink and the printing cylinder is detected. The thus detected light can be compared to a reference value for determining the attenuation due to the residual ink layer and hence determining the thickness of the ink layer. The thickness of the ink layer can in turn be used as a control value for adjusting the position of the doctor blade with respect to the printing cylinder.

REFERENCES:
patent: 2969016 (1961-01-01), Crosfield et al.
patent: 3017512 (1962-01-01), Wolbert
patent: 3234821 (1966-02-01), Ostwald
patent: 3238839 (1966-03-01), Day, Jr.
patent: 3330961 (1967-07-01), Juengst et al.
patent: 3376426 (1968-04-01), Frommer et al.
patent: 3392623 (1968-07-01), Walker et al.
patent: 3439175 (1969-04-01), Kammuller et al.
patent: 3449758 (1969-06-01), Lavine
patent: 3492491 (1970-01-01), Beeit
patent: 3667421 (1972-06-01), Bala et al.
patent: 3707123 (1972-12-01), Heasman et al.
patent: 3720163 (1973-03-01), Frey et al.
patent: 3729248 (1973-04-01), Beduchand
patent: 3764192 (1973-10-01), Wheeler
patent: 3783781 (1974-01-01), Grommek
patent: 3813140 (1974-05-01), Knockeart

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