Doctor blade bar assembly

Details Doctor blade bar assembly Doctor blade bar assembly

1993-04-26

1994-09-13

Burr, Edgar S.

Printing

Inkers

Roller

101169, 101350, 101155, 118413, B41F 146

Patent

active

053458664

ABSTRACT:
A sector blade bar assembly supports spaced doctor blades on slidable base bodies which can be moved to throw-on or adjust the doctor blades with respect to a screened ink roller. A pair of blade base shifting devices are secured to doctor blade base support beams. The shifting devices utilize fluid actuated pistons to move the base bodies along guide surfaces on the beams. The doctor blades are moved in a linear manner to engage the screened ink roller at a negative contact angle. End plates on the base bodies are slidably supported and are spring biased into contact with the screened ink roller when the doctor blades are thrown onto the screened ink roller.

REFERENCES:
patent: 2578406 (1951-12-01), Dutro
patent: 2898854 (1959-08-01), Crawford
patent: 4358996 (1982-11-01), Ohlsson
patent: 4556307 (1985-12-01), Jensen
patent: 4964336 (1990-10-01), Bock et al.
patent: 5085502 (1991-10-01), Kobler et al.
patent: 5152220 (1992-10-01), Lindner et al.
patent: 5168806 (1992-12-01), Reder et al.
patent: 5182992 (1993-02-01), Rogge
patent: 5213037 (1993-05-01), Leopardi, II

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