| 摘要 |
PROBLEM TO BE SOLVED: To provide an extrusion molding machine constituted so as to eliminate the rotating tendency of a molded product while suppressing the feed load at the time of extrusion molding of a raw material. SOLUTION: The extrusion molding machine is equipped with an extrusion chamber 21 equipped with an extrusion screw conveyor 24 for feeding the raw material based on clay, a nozzle 41 having a raw material discharge port 42a, a cylindrical rotator 30 provided between the extrusion chamber 21 and the nozzle 41 in a freely rotatale manner, a drive means 35 for rotationally driving the rotator 30 and an auxiliary feed means 110 arranged in the rotator 30 and integrally rotated and driven along with the extrusion screw conveyor 24 to allow the raw material to flow toward the nozzle 41 while revolving it. The rotator 30 is equipped with kneading means 100 rotationally driven in the direction reverse to the rotary direction of the extrusion screw conveyor 24 by the drive means 35 to produce pressing force in the direction reverse to the feed direction while revolving the raw material. A plurality of the kneading means 100 are arranged so as to leave an interval along the axial line of the rotator 30 and the auxiliary feed means 110 is arranged between the adjacent kneading means 100. COPYRIGHT: (C)2006,JPO&NCIPI
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