Automatic detection device for marking large cord fabric roll in tire production

The utility model discloses an automatic detection device for marking a large cord fabric roll in tire production, which relates to the technical field of tire production detection and comprises a first mounting frame, a second mounting frame, a fixed box and a first mounting box, the fixed box and the first mounting box are fixedly arranged in the first mounting frame, and a sliding frame is slidably arranged in the fixed box. A first rotating roller is rotationally arranged on the inner side of the sliding frame, a thickness detection assembly is arranged in the fixed box, an electromagnet is fixedly arranged in the first mounting box, a magnetic conductive plate is arranged at the lower end of the electromagnet in a matched mode, and a second mounting box is fixedly arranged at the position, corresponding to the first mounting box, of the inner side of the first mounting frame; a receiving assembly is arranged in the second mounting box, a labeling mechanism is arranged at the position, corresponding to th