COMBINED-TYPE MOLD FOR INJECTION MOLING AND OF INJECTION MOLDING A ROTARY MEMBER BY THE MOLD

摘要

The injection molding combination mold includes: a first mold (2) having a gradient outer surface (21) and a molding surface (23) for forming one side of a molded article in the form of a rotating member; It has a gradient recessed inner surface 31 for fitting contact with the outer surface 21 of the first mold on one side, and has a gradient outer surface 32 on the other side facing away from one side. A second mold (3) further having a forming portion for extending from one side of the rotating member to form a peripheral portion of the rotating member; And a third mold 4 having a gradient concave inner surface 42 for fitting contact with the outer surface of the second mold, and having a forming surface 44 for forming the other side of the rotating member. do. The first and second molds 2 and 3 are combined with each other, and the second and third molds 3 and 4 are combined with each other, wherein the positional relationship and the posture relationship between the molds are respectively the outer surfaces 21, 23. ) And the fitting contact between the corresponding inner surfaces 32 and 42.