Color plate overturning and closing device

The invention relates to a color plate overturning and closing device comprising a rack, a conveying roller, a lifting device and a suction cup group. The lifting device is provided with a suction cup arm, and the rear end of the suction cup arm is driven by the lifting device to move up and down; the suction cup group comprises a rotating frame and a plurality of suction cups arranged on the rotating frame; and the rotating frame is arranged at the rear end of the suction cup arm and is driven by a rotary power device to rotate on a vertical plane parallel to the conveying roller, so that the suction cup group can be integrally turned over, and the suction surfaces of the suction cups are upward or downward. The color plate overturning and closing device realizes the process of automatic overturning and closing of color plates, the manual operation is replaced, the work efficiency is improved, the work cost is reduced, and the human error is reduced; the device can realize automatic overturning and closing o