Patent ID: 9022638
Filing Date: 2015-05-05
Classification: B29B,B29C

Abstract:
1. A mixing and kneading machine ( 1 ) for continual compounding including a screw shaft ( 3 ) rotating in a casing ( 2 ) and defining a processing space therebetween, said screw shaft simultaneously moving axially translationally within the casing, the screw shaft ( 3 ) executing a reciprocation for each revolution, characterized in that the screw shaft ( 3 ) comprises four to six groups of radial screw vanes ( 4 a , 4 b , 4 c , 4 d ) evenly distributed circumferentially, each group consisting of a plurality of screw vanes in axial sequence, wherein the ratio of the length of the processing space (PI) to the outer diameter (Da) of the screw shaft ranges from 8 to 12.