Automatic packaging box monitoring and sorting device

The utility model discloses an automatic monitoring and sorting device for packing boxes, which relates to the technical field of packing box sorting and comprises a sorting table, a first-section conveying table and a second-section conveying table are fixedly mounted on the sorting table, and a first conveying assembly and a second conveying assembly are respectively arranged on the first-section conveying table and the second-section conveying table. The conveying assembly comprises a first-section conveying belt, the second conveying assembly comprises two second-section conveying belts, the first-section conveying belt is arranged in the middle of a first-section conveying table, the two second-section conveying belts are arranged at the edges of the two sides of a second-section conveying table, first-section monitoring openings are formed in the edges of the two sides of the first-section conveying table, and second-section monitoring openings are formed in the edges of the two sides of the second-sect