Printing pressure adjusting apparatus of printing cylinders
AssigneeKomori Corporation
InventorHitoshi Funada
Life of this patent
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Abstract
When a screw 60 has been adjusted, a printing pressure adjusting disc 72 is turned through a shaft 75 and a segment gear 73 to adjust an eccentric pin through a link 78 and a lever 79. Also when the amount of eccentricity of a rubber cylinder 53 has been changed as a result of the adjustment of the stopper screw 60, the eccentric pin of each plate cylinder also is simultaneously adjusted in accordance with the amount of adjustment of the screw 60, and further the amount of eccentricity of the plate cylinder is changed to such a state that a printing pressure is kept constant in relation to the rubber cylinder 53, thus enabling the printing pressure adjustment with little labor and time to thereby improve printing operation performance.
Claims4
In a printing press of the type having a blanket cylinder and a plurality of plate cylinders rotatable in contact with said blanket cylinder;
- means for adjusting the printing pressure of said plate cylinders on said blanket cylinder, said adjusting means comprising:
- a frame of said printing press;
- an eccentric bearing fitted on said frame and rotatably supporting said blanket cylinder in an eccentric position;
- a plurality of eccentric sleeves rotatably supported on said frame and respectively rotatably supporting said plate cylinders in an eccentric position;
- stop means for adjustably regulating the angular rotation of said eccentric bearing of said blanket cylinder;
- stop means for adjustably regulating the angular rotation of said respective plate cylinders;
- and
- an interlock mechanism for maintaining constant the state of contact of said plate cylinders with said blanket cylinder, said interlock mechanism simultaneously changing the position of each said stop means of said respective eccentric sleeves of said plate cylinders in dependence on an adjustment of the angular position of said eccentric bearing of said blanket cylinder.
Dependencies are inferred from the claim text.