Fecha de publicación: 19/08/2022 Fuente: WIPO "processing tomato" The utility model relates to the technical field of printed matter processing, in particular to an automatic cleaning device for printed matter packaging, which comprises a conveyor, the surface of the conveyor is in transmission connection with a conveyor belt, a cleaning device is arranged at the position of the conveyor relative to the conveyor belt, the cleaning device comprises a support, and the support is fixedly connected to the upper surface of the conveyor. The cleaning device comprises a support, two electric telescopic rods are fixedly connected to the upper surface of the support, the output ends of the two electric telescopic rods are fixedly connected with a mounting plate, the vertical section of the mounting plate is in a U shape, positioning rods slidably penetrate through the surfaces of two side arms of the mounting plate, and cleaning rollers are slidably connected to the arc surfaces of the two positioning rods. The ends, away from each other, of the two positioning rods are fixedly connected with limiting plates. The problem that due to the fact that sundries are prone to being attached to the surface of the printed matter in the machining process, when the printed matter is directly packaged, the quality of the printed matter is reduced is solved.