Offset press passes black mechanism

The utility model discloses an offset press passes black mechanism, its distributor roller, plate cylinder who includes ductor roller, vibrateing rolling, is used for to transmit ink between ductor roller and the vibrateing rolling, plate cylinder is through a plurality of gear connection vibrateing rollings, an installation cam on the axle head of vibrateing rolling also includes the first pass china ink cam reduction gears of locating between vibrateing rolling and the cam, it installs the eccentric wheel on the axle head of vibrateing rolling, first gear, internal gear including what connect gradually to pass black cam reduction gears, also be equipped with a cross baffle ring and a pivot on the first gear, the baffle ring passes through the first gear of pinned connection, the internal gear is connected with the cam mutually. The utility model has the advantages of reasonable design, the speed reduction has been realized to the needs of adaptation distributor roller motion that can be better.