Four color printing machine

The utility model discloses a four color printing machine, including conveyer, colour printing section and discharge gate, colour printing section both ends set up feed inlet and discharge gate respectively, all be connected conveyer between feed inlet and discharge gate and the colour printing section, colour printing section is including first colour printing section, second colour printing section, third colour printing section and fourth colour printing section, colour printing intersegmental part all is provided with black rubber roll and passes the paper roll, the china ink rubber roll includes inking rubber roll and lower black rubber roll, it passes the paper roll under with including uploading the paper roll to pass the paper roll, the inking rubber roll includes the roller core, the roller core outer fringe is provided with the rubber layer, the cross section of roller core is the cavity loop configuration, be provided with a plurality of mounting holes on the roller core, the roller core inner wall is provided with a plurality of axial slots. The utility model discloses an aim at providing one kind rational in infrastructure, easy operation, the lower paper of defective percentage is difficult for accumulational four color printing machine.