The invention discloses a nozzle assembly for a plasticizing part of a high-tonnage injection blow molding machine, comprising a nozzle pipe, a nozzle head, a nozzle orifice, a material conveying pipe and a conveying screw, the nozzle head is fixed on the left side of the nozzle pipe, the nozzle orifices are arranged inside the nozzle head, the material conveying pipe is connected to the right side of the nozzle pipe through threads, the conveying screw is arranged inside the material conveying pipe, a connecting mechanism is arranged on the right side of the nozzle pipe, a pushing mechanism is arranged inside the nozzle pipe, and a transmission mechanism and a flow guide mechanism are respectively arranged at the bottom end of the left side of the nozzle pipe. In the invention, the connecting mechanism, the pushing mechanism, the transmission mechanism and the flow guide mechanism are matched together through the structure, so that the whole device is closely connected, and the problems that the interior may be blocked when the nozzle is not used for a long time, so that the solution cannot be sprayed out from the interior of the nozzle, and the nozzle may be damaged under the blocked condition, affecting the normal use of the nozzle are effectively prevented.

Country Code: CN

Application Number: CN202010684621.1