The utility model discloses a nozzle assembly for plasticizing parts of a high-tonnage injection blow molding machine, comprising a nozzle tube, a nozzle head, nozzle orifices, a feed pipe and a feed screw. The nozzle head is fixed on the left side of the nozzle tube, nozzle orifices are formed inside the nozzle head, the feed pipe is connected to the right side of the nozzle tube through threads, the feed screw is arranged inside the feed pipe, a connection mechanism is arranged on the right side of the nozzle tube, a pushing mechanism is arranged inside the nozzle tube, and a transmission mechanism and a flow guide mechanism are respectively arranged at the bottom end of the left side of the nozzle tube. In the utility model, the connection mechanism, pushing mechanism, transmission mechanism and flow guide mechanism are matched together through the above structure, so that the whole device is closely connected. It effectively prevents the problems that when the nozzle is not used for a long time, the interior may be blocked, resulting in the inability of the melt to be sprayed out from the nozzle, and the nozzle may be damaged under the blocked condition, affecting the normal use of the nozzle.

Country Code: CN

Application Number: CN202021399423.2