DOCTOR BLADE UNIT FOR THE INKING SYSTEM OF A ROTARY PRINTING PRESS

摘要

A doctor blade unit for the inking system of a rotary printing press consists of a doctor blade carrier, on which two doctor blades that can be brought into contact with an inking roller or screen roller are fastened parallel to one another in the approximate shape of a roof, so that the doctor blades in cooperation with the roller, the doctor blade carrier and sealing elements provided on the ends of said doctor blade carrier defining an ink chamber. Ducts for supplying and discharging ink into/out of the ink chamber and contacting units for pressing the doctor blade carrier against the roller are also provided. In order to ensure that both doctor blades can be pressed against the inking or screen roller with exactly the same contact pressure, the doctor blade carrier is connected to a doctor blade unit carrier which is supported by two parallel pitman arm systems.