Device for automatically wiping back roller of extrusion die head

The utility model discloses a device for automatically wiping a back roller of an extrusion die head, which is applied to the technical field of battery manufacturing and is characterized by comprising a base and a mounting frame arranged on the base, the back roller is arranged on the mounting frame, a pushing hydraulic cylinder is connected to the position, far away from the mounting frame, of the base, and a supporting frame is arranged at the output end of the pushing hydraulic cylinder. The top of the supporting frame is connected with a cleaning assembly through a moving part, the moving part comprises a transverse plate installed on the supporting frame, a transverse groove is formed in the transverse plate, a servo motor is installed on the outer side of the transverse plate, the output end of the servo motor is coaxially connected with a transmission lead screw penetrating into the transverse groove, and the transmission lead screw is in threaded connection with a lead screw sliding table. The lead s