DEVICE FOR FORMING HOSE-OR TUBE-FORM HOLLOW ROPE OF THERMOPLASTIC SYNTHETIC RESIN

摘要

PURPOSE: To provide a blow head being a device for producing a hose-like or tubular hollow rope made of a thermoplastic synthetic resin by a simple means so as to obtain the uniform distribution of a material and an improved hollow rope. CONSTITUTION: This apparatus comprises at least one connected extrusion molding machine introducing a synthetic resin material and a blow head l having at least one sleeve 8 arranged to a case and at least the flow spaces 9,11 of a hollow rope introducing a synthetic resin material are formed between the sleeve 8 and the case 2 in a heart-shaped curve and the outflow regions of the passage branches 15, 16 of a heart-shaped distribution portion are overlapped with each other by a system of a helical distribution portion.