Patent ID: 11141897

Abstract:
A method for producing an extrusion molded product, wherein the method uses a holder (6) for feeding a core material (11), the holder (6) being provided with cutting guide holes (7) through which cutting blades (2) go to form grooves (12) in the core material (11); when rotary bodies (3) provided with the cutting blades (2) start rotating, the core material (11) and the holder (6) stand by at a predetermined standby position that does not enable the cutting blades (2) to cut the core material (11); and when the rotation speeds of the rotary bodies (3) reach predetermined rotation speeds, the holder (6) is or the rotary bodies (3) are moved so that the cutting blades (2) can start cutting the core material (11) proceeding through the holder (6), and then the cutting blades (2) form a plurality of grooves (12) in the core material (11).