Die structure of thick-wall round pipe

The utility model discloses a die structure of a thick-wall round pipe. The die comprises a male die and a female die, the female die comprises a first female die and a second female die; a pluralityof shunting holes are formed in the second female die; the shunting holes are uniformly distributed around the mold core; wherein the die core is detachably connected with the insert, the insert is located in a cavity of the first female die, steps and die corners are arranged at the positions, opposite to the first female die, of the insert, the number of the flow dividing holes is six, the die core is connected with the second female die through the hole walls of the flow dividing holes, the flow dividing holes are in smooth transition, and the insert is in threaded connection with the die core. According to the device, the separation insert is matched with the mold core, so that a deeper neck position is convenient to process. 本实用新型公开了一种厚壁圆管的模具结构，包括凸模和凹模，所述的凹模包括第一凹模和第二凹模，第二凹模中设有若干分流孔，分流孔绕模芯均匀分布，模芯可拆卸地连接镶件，镶件位于第