CLEANER FOR METALOGRAPHIC PRINTING MACHINE Russian patent published in 1996 - IPC

FIELD: printing industry. SUBSTANCE: the cleaner operates at least with a single cylinder, on which printing ink removed from the master plate is fed, and to which the doctor blade removing the ink from this cylinder is fitted. To reliably clean the doctor blade of ink during operation, walls are installed on the opposite ends of this doctor blade. In vertical projection the walls are U-shaped, and these side members are directed towards each other. A pusher reciprocates by means of a drive between these side members on the doctor blade surface, the pusher parts facing the walls correspond to the shape of these walls. Installed on the back side of the doctor blade on each side is a printing ink pump, whose inlet slit-like hole is positioned between the U-shaped side members of the respective wall, the pump reciprocates and operates as a displacement pump and displaces the ink from the doctor blade alternately to the cavity limited by this or that wall, where from it is removed by the pump and fed to the respective collector. EFFECT: enhanced efficiency. 9 cl, 4 dwg