APPARATUS FOR EMBOSSING EXTRUSION MOLDED PRODUCT AND METHOD THEREFOR

摘要

PROBLEM TO BE SOLVED: To uniformly emboss the hollow part of an extrusion molded product by forming a compressed air supply port supplying compressed air into a hollow part to the end surface on the downstream side of a core. SOLUTION: A core 30 forming the inner surface of the hollow part of an extrusion molded product is provided in the molding hole 28 of a cap 22. An embossing roller 24 having embossed patterns carved in its surface is arranged in the vicinity of the outlet of the cap 22. A compressed air supply port 38 is formed in the end surface 30a on the downstream side of the core 30. The embossing roller 24 is brought into contact with the outer surface of the hollow part to emboss the extrusion molded product extruded from the cap 22. At this time, compressed air is supplied into the hollow part from the compressed air supply port 38 to uniformly bring the outer surface of the hollow part into contact with the first embossing roller 24.