Rapid forming die for insulating gauge pull rod

The utility model discloses a rapid forming die for an insulating gauge pull rod, which comprises a fixed die and a movable die, the upper end face of the fixed die is provided with a lower-layer large semicircular groove and a lower-layer small semicircular groove, and the lower end face of the movable die is provided with an upper-layer large semicircular groove and an upper-layer small semicircular groove; an injection molding channel and an air inlet channel are formed in the movable mold, the injection molding channel communicates with the upper-layer large semicircular groove and the air inlet channel, a sealing piston capable of sealing the injection molding channel is slidably and hermetically installed in the air inlet channel, and an air guide notch is formed in the lower portion of the sealing piston. After the movable mold and the fixed mold are closed and before injection molding, high-pressure airflow enters the air inlet channel, the high-pressure airflow automatically ejects open the sealing p