Kneading rotor for closed kneading machine

摘要

A closed kneading machine (80) comprises a casing (70) in which two kneading chambers (70s) are provided, a material supply port (71) is provided in a position above the chambers, a material discharge port (72) is provided in a position below the chambers, and the chambers are hermetically sealed by closing the material supply port and the material discharge port; and a pair of kneading rotors (1, 5) of an intermeshing type accommodated in the chambers (70s) and arranged mutually in parallel, wherein the pair of kneading rotors respectively have a rotor section (10); the rotor sections each has a rotor section main body (15) of a round cylindrical shape, and one long blade (20) and two short blades (30, 40) provided on a surface of the rotor section main body.