Biaxial or tri-axial eccentric rotor volume pulsed deformation plasticizing method and device

A biaxial or tri-axial eccentric rotor volume pulsed deformation plasticizing device comprising a hopper, two or three eccentric rotors, a stator and a drive unit, the eccentric rotors being disposed in an inner cavity of the stator and connected with the drive unit, respectively;

• the hopper is in communication with the inner cavity of the stator, and the eccentric rotors are all formed by length-varying spiral structures and eccentric cylindrical structures connected alternately;
• the spiral structures of the eccentric rotors are engaged to each other;
• and the axial positions of the eccentric cylindrical structures of the two or three rotors are the same;
• wherein the device is configured to perform a biaxial or tri-axial eccentric rotor volume pulsed deformation plasticizing method, the method comprising the steps of:
• conveying a volume of materials formed between two or three engaged eccentric rotors formed by spiral structures and eccentric cylindrical structures connected alternately, and an inner surface of the stator, the volume changes periodically along an axial direction and a radial direction of the rotors, thereby achieving the volume pulsed deformation plasticizing and conveying of the materials during engaged rotation of the two or three engaged eccentric rotors;
• wherein both a pitch of the spiral structure of the eccentric rotor and the length of the eccentric cylinder are gradually decreased in the axial direction.