Thin film pre-feeding device for cigarette carton packaging sealing and cutting machine

The invention discloses a thin film pre-feeding device for a cigarette carton packaging sealing and cutting machine. The film pre-feeding device comprises a pressing roller, an air cylinder and guide rods, the pressing roller is rotationally connected to a roller frame, the roller frame is connected to two linear bearings through the two guide rods fixedly connected to the upper side face of the roller frame, the two linear bearings are fixedly connected to a door-type fixed frame, a cylinder rod of the air cylinder is fixedly connected to the middle of the upper side of the roller frame, a cylinder base of the air cylinder is fixedly connected to the fixed frame, and two auxiliary rollers are installed in the fixed frame and located on the two sides of the pressing roller. According to the thin film pre-feeding device for the cigarette carton packaging sealing and cutting machine, pre-feeding can be carried out on a sealing and cutting machine thin film, so that the thin film is in a free moving state in adv