Environment-friendly packaging box manufacturing device

The utility model discloses an environment-friendly packaging box manufacturing device, and relates to the technical field of packaging boxes, the environment-friendly packaging box manufacturing device comprises a cooling box, a conveying belt is arranged in the cooling box in a penetrating mode, a plurality of sets of air holes are evenly formed in the conveying belt, and cooling assemblies are arranged at the two ends of the interior of the cooling box. And adsorption assemblies are arranged on the two sides of the top end of the cooling box, limiting grooves are formed in the bottom ends of the interiors of the adsorption assemblies, a plurality of sets of springs are evenly arranged in the limiting grooves, and a positioning assembly is arranged at the top end of the cooling assembly. According to the thermoplastic body cooling device, the cooling assembly is arranged, the air cooler conveys cold air into the air guide boxes through the air guide pipes, finally the cold air is sprayed out through the air