Five-function gear box of printing machine

The invention relates to a five-function gear box of a bedplate printing machine, and solves the technical problems of overcoming the heavy manual printing and using an electromechanical automatic printing machine to replace the manual printing. The five-function gear box of the bedplate printing machine is arranged with two cams of a lifting and travel control cam (2-1) and a forward printing and reverse printing control cam (2-2) fixed on a cam bushing (3-1); under the power transfer of a motor, a time control worm rod (4) and a time control worm wheel (5) are linked to act through a swinging body and a semicircular poking fork device; and the lifting and travel cam (2-1) and the forward and reverse printing cam (2-2) rotate by stated speed and direction to finish five working actions needed by the printing.