The present invention relates to the technical field of blow molding, in particular to a plastic injection blow molding device, comprising a working table on which a blow molding frame is mounted, an injection frame is erected on the top of the working table, a rolling injection cylinder is mounted on the blow molding frame, a plurality of injection mold cavities are arranged on the rolling injection cylinder at equal radian, a plurality of injection mold parts are mounted in the injection mold cavities, a transmission shaft is transversely erected in the inner cavity of the injection frame, a plurality of injection barrels are mounted on the injection frame at equal intervals, the injection barrels are matched with the injection mold parts one by one, a plurality of crank transmission frames are mounted on the transmission shaft, a transmission connecting rod is mounted on the bending rod of the crank transmission frame through a first connecting sleeve, and a piston is mounted at the other end of the transmission connecting rod through a second connecting sleeve. The present invention can achieve multi-station continuous and rapid operation, reduce operation bottlenecks, and greatly improve the overall operation productivity.

Country Code: CN

Application Number: CN201910766648.2