| 摘要 |
PROBLEM TO BE SOLVED: To provide a blow molding device, a blow molding method, and a sealing/positioning component for a preform, capable of sealing the surrounding of a mouth of a preform, regardless of a flange shape, without wearing a blow core mold and a blow mold, and suppressing molding defect due to positional deviation of the preform.SOLUTION: A blow molding device comprises: a pair of blow cavity split molds 50A, 50B; a chuck member 80 for chucking a mouth 20 and transporting a preform 10A; a blow core mold 70 including a cylindrical part 71 which surrounds the surrounding of the mouth and a flange 25 of the preform, and introducing blow air into the preform; and a pair of salient members 60A, 60B which are a half-split ring-shape, and are detachably attached to respective upper faces of the pair of blow cavity split molds. Each of the pair of salient members has an air tight sealing part 61 contacting a lower end face of the cylindrical part of the blow core mold, and a positioning part 62 for positioning the flange of the preform.SELECTED DRAWING: Figure 4 |
