| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a coating extrusion mold simple in structure and capable of adjusting the flow rate of a resin even in such a case that a non-uniform section is not generated symmetrically. SOLUTION: In a coating extrusion mold for coating the surface of a long member having a circular cross section with the resin extruded from an extruder, passing holes 11, 21 through which the long member passes are provided to the center of the mold, and an annular resin flow passage is provided on the outer circumference of circle of the passing hole 11 so as to be concentric to the passing hole 11. Mutually independent resin rich area 13 is provided at positions wherein the circumference of circle inside the annular resin flow passage 12 is divided almost equally, and the annular resin flow passage 12 is allowed to communicate with the resin rich area 13 through radial resin flow passages 14. Adjusting valves 24 for adjusting the flow rates of the resin are provided to the radial resin flow passages 14, and the resin supply flow passages 22 to the passing holes 11, 21 from the resin rich area are provided.</p> |
