| 摘要 |
PURPOSE: A device for extrusion molding a PVC hose is provided to extrusion mold for burying a reinforcing horizontal string inside the thickness of a standard PVC hose extrusion molded in a first extrusion molding device. CONSTITUTION: A device for extrusion molding a PVC hose, a plurality of reinforcing horizontal strings(4), a first reinforcing vertical strings, and a hosiery string(20). The reinforcing horizontal strings are arranged to outer circumference of a standard PVC hose extrusion molded in a first extrusion molding device in a longitudinal direction of the hose. The hosiery string where a plurality of vertical penetration holes(21) is penetrated to the front end of an extrusion die(11) of an extrusion molding device(10) is built in a constant interval from the outer circumference to inner circumference.
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