B - Operations – Transporting – 41 – F
Patent
B - Operations, Transporting
41
F
101/103
B41F 31/36 (2006.01)
Patent
CA 1062540
PRINTING APPARATUS AND METHOD Abstract of the Disclosure An improved flexographic printer having a separate ink trough and doctor blade assembly, the ink trough pro- viding an ink film to an ink roll and the doctor blade assembly metering the ink on the cylindrical surface of the ink roll. The improved flexographic printer includes a frame, an ink roll rotatably mounted on said frame, and an ink trough supported by said frame adjacent a cylindrical surface of the ink roll. A pair of pivotably mounted members are supported by said frame, each member having a first arm, the pair of first arms supporting a reverse angle doctor blade assembly. The reverse angle doctor blade assembly is adapted to be advanced by said pivotably mounted members into an operative position adjacent the cylindrical surface of the ink roll at a location on the cylindrical surface intermediate a location of the ink trough and a further location where the ink roll is adapted to engage a printing roll, in a direction of rotation of the ink roll. A second arm of each pivotably mounted member is engaged by actuator means adapted to apply a force to each member, thereby pivoting each pivotably mounted member about a respective pivot point, such that a doctor blade supported by the doctor blade assembly is biased into line contact with the cylindrical surface of the ink roll. - 1 -
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