Cold heading module used for manufacturing flange sleeve

The utility model discloses a cold heading module used for manufacturing flange sleeve, including a cold heading die utensil that sets gradually two first semi -manufactured goods blanks of terminal surfaces formation of plastic wire rod blank on the cold former, at the 2nd cold heading die utensil of non - flange terminal surface shaping hole fixed point formation second semi -manufactured goodsblank, along fix a point to the 3rd cold heading die utensil of the first hole of flange terminal surface cold -heading shaping formation third semi -manufactured goods blank in the hole of the non -flange terminal surface of second semi -manufactured goods blank, along the second hole that third semi -manufactured goods blank flange end does not feed through towards non - flange terminal surfacecold -heading shaping and second hole, the preforming of cold -heading simultaneously flange forms the fourth cold heading die utensil of fourth semi -manufactured goods blank, punching press the first hole and the second hole