Patent ID: 6224251
Filing Date: 2001-05-01
Classification: B29B

Abstract:
A continuous type kneading machine comprising a chamber formed by a pair of parallel cylindrical cavities communicated with each other at their sides and a pair of rotatable rotors housed in a non-intermeshing state in the cavities, wherein each of the rotors comprises two blades diametrically opposite to each other and having a spiral angle in the axial direction, a barrel portion, and a constant cross section in the axial direction such that each blade extends over an entire length of the barrel portion, wherein all blades on a given rotor twist in the same spiral direction, wherein directions of the spiral angles of the rotors in the cavities are opposite to each other and a phase difference between the rotors during rotation of the rotors is kept constant, wherein the rotors rotate in opposite directions relative to each other and said spiral angle is in a range between 5 degrees to 30 degrees.