Gluing device for paper box

The utility model relates to the technical field of paper box gluing, in particular to a gluing device for a paper box, which comprises a mounting machine body, a plurality of conveying rollers and a gluing roller, the conveying rollers are rotatably arranged in the middle of the mounting machine body and are kept on the same level, and the gluing roller is positioned above the conveying rollers in a lifting manner. The gluing roller is rotationally mounted on the lower side of the gluing box; the two gluing rolling brushes brush glue on the glue uniformizing rollers at the same time, the two glue uniformizing rollers are synchronously and tightly attached to the outer surface of the connecting roller, in this way, when the connecting roller rotates, glue on the glue uniformizing rollers can be evenly smeared on the surface of the connecting roller at the same time, and the surface glue is evenly smeared on the surface of the gluing roller when the connecting roller rolls; the paper box on the conveying rolle