Manufacturing mold for manufacturing nose bridge strip guide cylinder of mask machine

The utility model discloses a manufacturing die for manufacturing a nose bridge strip guide cylinder of a mask machine, and relates to the technical field of dies. The manufacturing die disclosed by the utility model is a frustum-shaped solid handle type tool, and two flat opening planes which are symmetrical to each other are formed along the conical surface of the frustum-shaped solid handle type tool; the flat opening plane is in smooth transition with the conical surface of the mold; the included angle formed between the two flat opening planes and the taper angle of the die are both 5-6 degrees; the small opening end of the manufacturing mold is an annular flat opening formed by enclosing two flat opening planes and a mold conical surface, and the cross section of the annular flat opening is an annular surface formed by enclosing two sections of straight lines and two arcs; the thickness of the annular flat opening ranges from 1.8 mm to 2.5 mm, and the maximum width between two arcs on the annular flat o