Automatic adhesive tape detection and replacement device

The invention provides an automatic adhesive tape detecting and replacing device which comprises a base plate, a three-dimensional moving mechanism, an adhesive tape quick replacing disc clamping jaw and a new adhesive tape quick replacing disc, the three-dimensional moving mechanism is fixedly connected with the base plate, the adhesive tape quick replacing disc clamping jaw is fixed to the terminal of the three-dimensional moving mechanism, and the new adhesive tape quick replacing disc is installed on the base plate through a positioning pin. The substrate is fixedly connected with a photoelectric switch and a to-be-replaced adhesive tape quick-change disc fixed on the adhesive coating machine, and the photoelectric switch is fixed below an adhesive tape on the to-be-replaced adhesive tape quick-change disc; whether an adhesive tape roll on the adhesive tape quick-change disc can finish subsequent adhesive tape coating operation or not can be automatically judged through the photoelectric sensor before adh