MOLDING MACHINE FOR SYNTHETIC RESIN TUBULAR MEMBER AND ITS MANUFACTURE USING IT

PROBLEM TO BE SOLVED: To effectively avoid an interference of a slide mold for molding a tubular end and a complication of a constitution of a runner for supplying a material resin in the case of molding one set of two synthetic resin tubular members of a substantially C shape as seen from a front surface by a die rotary injection method. SOLUTION: In the molding machine for injection molding a synthetic resin tubular member of a substantially C shape as seen from a front surface by a die rotary injection method, a pair of mold parts of a substantially C shape are symmetrically provided at molding parts 140A, 140B, 140C of the one mold 140 so that opened parts of the C shape are directed outward of the mold, slide molds 133, 133' corresponding to the tubular member ends are provided at the opened parts of the C shape of the molds of female molding parts 140A, 140C, resin supply passages 143a, 143b, 143c to the molding parts are disposed between the paired molds or on its extension. Thus, a pair or tubular members are obtained at each one time relative rotation of the mold.