Automatic paperboard arranging mechanism

The utility model discloses an automatic paperboard arranging mechanism which comprises a conveying assembly and three sets of arranging assemblies. A plurality of paperboards are stacked together to form a paperboard stack, and the paperboard stack is arranged on the conveying assembly; the three sets of arranging assemblies are the left-right arranging assembly, the front-back arranging assembly and the up-down arranging assembly respectively, the left-right arranging assembly is symmetrically arranged at the two ends of the paperboard stack and comprises a push plate, and the front-back arranging assembly comprises a set of baffles located behind the paperboard stack and a set of adjusting plates located in front of the paperboard stack. A vertical pneumatic lifting rod is arranged at the bottom of the adjusting plate and connected with a horizontal pneumatic telescopic rod, the up-and-down arranging assembly comprises a set of pressing plates, and the pressing plates are located above the paperboard stack