Book printing and spraying device

The utility model relates to the field of book printing, in particular to a book printing and spraying device. The book printing and spraying device mainly can perform crack detection and cutting work on paper to be subjected to follow-up paint spraying work, and main function implementation parts of the book printing and spraying device comprise a detection structure, a conveying structure, a cutting structure and a discharging structure. Wherein the detection structure is arranged on one side of the conveying structure and fixedly connected with the conveying structure, the cutting structure and the discharging structure are arranged at the left end and the right end of the conveying structure respectively and fixedly connected with the conveying structure, and the detection structure is mainly used for detecting cracks of paper. The conveying structure is a main body structure of the device and mainly provides transmission work for paper; the cutting structure can cut paper with cracks detected at the fron