The invention discloses a paper machine. The paper machine comprises guide rails bilaterally symmetrically and fixedly arranged on the ground, racks which are bilaterally symmetric and fixed on the ground are arranged on one side away from the guide rails, a box block is glidingly arranged on the outer surfaces of the guide rails, bilaterally symmetric rotation drive motors are fixedly arranged inend surfaces, away from the center line of the box block, of the box block, gears meshed with the racks are fixedly arranged on end surfaces of output shafts of the rotation drive motors away from the center line of the box block, a groove cavity with a downward opening is fixedly formed in the lower end surface of the box block, and fixing rods are fixedly arranged in worm gears. The equipment is simple in structure and convenient to use, the mechanical structure of the equipment is controlled by a control system according to the thickness change during paper rolling, the efficient paper rolling process is realized, paper rolls are dismounted and recovered by a detachable structure after processing, and the working efficiency of the equipment is improved.