INJECTION MOLDING METHOD OF RUBBER MOLDED ARTICLE AND INJECTION MOLDING MOLD

摘要

PROBLEM TO BE SOLVED: To provide an injection molding method and an injection molding mold of a rubber molded article which can raise the uniformity of configuration of a rubber molded article without prolonging a cycle time in molding an unvulcanized rubber molded article by injection molding.;SOLUTION: The injection pour of an unvulcanized rubber composition is carried out in a cavity formed in the inside of a molding mold in a mold clamping state and a bead filler 1b is molded, thereafter the pressing of an opposite part 30 corresponding to a gate connection 20 is carried out while the bead filler 1b is in a unvulcanized condition, the symmetrical compressive stress to the stress generated by the injection pour of an unvulcanized rubber composition is made to interact on the bead filler 1b, and thereafter the bead filler 1b which is in an unvulcanized condition is taken out from a molding mold.;COPYRIGHT: (C)2008,JPO&INPIT