Automatic film winding device for large-diameter paper tube

The utility model relates to an automatic film winding device for a large-diameter paper tube, and belongs to the technical field of paper tube production equipment. The device comprises a controller and a mechanical main body, the mechanical main body comprises a material taking unit and a film winding unit, and the material taking unit is connected with the film winding unit through a conveying unit; the material taking unit comprises a linear telescopic device, a chuck and a telescopic air cylinder. A first sensor is arranged at the material taking end of the linear telescopic device, and the first sensor and the telescopic air cylinder are in communication connection with the controller. The linear telescopic device is fixedly connected with the telescopic air cylinder, and the output end of the telescopic air cylinder is connected with the chuck. The film winding unit is provided with a photoelectric switch, the photoelectric switch is in communication connection with the controller, and the film winding