Feeding device of blow molding all-in-one machine

The utility model relates to a feeding device of a blow molding all-in-one machine. The feeding device comprises a raw material barrel used for containing plastic raw materials; the material guide pipes are inserted into the raw material barrel and are used for conveying the plastic raw materials in the raw material barrel; wherein the suction nozzle is connected to the material guide pipe and used for sucking plastic raw materials, a limiting mechanism used for fixing and limiting the material guide pipe is arranged at a barrel opening of the raw material barrel, and the limiting mechanism comprises a barrel cover covering the raw material barrel; the plurality of cover holes penetrate through the barrel cover and are matched with the material guide pipe; wherein the limiting assemblies are connected to the barrel cover in a sliding mode and used for fixing and limiting the material guide pipe, and fasteners used for fixing the barrel cover are further arranged on the edge of the barrel cover. The material g