Control device for the supply of ink to an offset printing machi

Printing – Inkers – Fountains

Patent

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Details

B41F 3104, B41L 2706

Patent

active

056948514

ABSTRACT:
The offset printing machine comprises at least one flexible ink blade (14) which, angled in the direction of an ink roller (12), borders an ink bath (40) and can be bent in zones to different degrees against the cylindrical surface of the ink roller (12), and adjustment means for bending the ink blade edge (36). The adjustment means has tappets (92) axially displaceable in a guide and an adjustment cam (62) allocated to each, with the cam axis (L) parallel to the ink roller axis (A). The tappets (92), preferably individually adjustable length-wise, are pressed by springs (100) against the peripheral surface (72) of the adjustment cam (62). The self-locking positionable adjustment cams (62) are arranged alternately in the modular principle with bearing jaws (64) for their non-rotatable coaxial bearing bolts (60) on a mounting rail (56), for interchargeable mounting as a control unit (58) directly or via an adapter on an offset printing machine. The peripheral surface (72) of the adjustment cam (62), produced with very high precision, lies freely in a longitudinal groove (89) of the control unit (58), and is progressively curved according to a further feature of the invention.

REFERENCES:
patent: 4051782 (1977-10-01), Fernandez

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