Carton folding and shaping mechanism

The utility model discloses a carton folding and shaping mechanism which is characterized in that on the basis of the structure of an existing carton folding machine, a shaping bin matched with a conveying belt is arranged on a cross beam, a plurality of shaping wheels are arranged on the shaping bin, progressive deformation structures are arranged among the shaping wheels, and a positioning plate matched with the shaping wheels is arranged to achieve extrusion force application. The progressive shaping of the carton during bending is realized through the mutual matching of the plurality of shaping wheels while the carton is bent in a transverse moving manner; the device can also be used for adjusting a gap so as to adapt to the adjustment of paperboards with different thicknesses; the device is further provided with a negative pressure suction device, an air opening of a negative pressure fan is attached to a belt in the upper belt set, paperboard adsorption can be effectively achieved, and the paperboard is