Tire forming material cutting device

The utility model provides a tire forming material cutting device, and belongs to the field of manufacturing of tire industrial equipment. The cutting device comprises a support and a linear module, and a track backup plate is fixed to the side face of the linear module. A front-back guide part is mounted on a slide carriage of the linear module, and a rotating part is mounted below a push plate of the front-back guide part; a roller is mounted on a push plate of the front-back guide part and moves along the track surface of the track backup plate under the action of the front-back guide part and the linear module; the ultrasonic cutter is mounted on the rotating component through a cutter rest; the cutting device further comprises an auxiliary cutter plate, a groove is formed in the surface of the auxiliary cutter plate, and the shape of the groove is matched with the projection shape of the track face of the track backup plate. According to the cutting device, cutting of different shapes and angles can be a