Automatic separation pressing and combination pressing device of offset press

The utility model discloses an automatic separation pressing and combination pressing device of an offset press. An impression cylinder, a rubber cylinder, a plate cylinder and a separation pressing and combination pressing shaft are arranged between and on a left wall plate and a right wall plate. A driving device is arranged at one end of the separation pressing and combination pressing shaft and is fixed to the left wall plate and the right wall plate through supporting shafts. A left eccentric sleeve and a right eccentric sleeve are symmetrically assembled on shaft heads at the two ends of the rubber cylinder. A left gear block and a right gear block are arranged on the left eccentric sleeve and the right eccentric sleeve. A left gear and a right gear which rotate in a meshed mode are arranged on the left gear block and the right gear block. The driving device is adopted and directly drives the separation pressing and combination pressing shaft to move, and therefore the printing pressure of the rubber cylinder and the impression cylinder is regulated, the automation degree is high, cost is low, the machine performance is reliable and stable, the printing assistance time is short, and the labor intensity is lowered.