| 摘要 |
PURPOSE:To obtain a blown container whose fracture is aligned and that has excellent resealability, by pinching a parison between an edge section of a rod tip and a flat section of a mold bottom wall, and allowing the length of a rod to be adjusted finely. CONSTITUTION:A parison 1 is placed in split molds 2, a blowing pin 3 is inserted from the upper part, and air is jetted from a gas jetting hole 8 to force the parison 1 against the inner walls of the mold 2. Since the lower part 7 of the blow pin 3 forms a resin core section 10 having a prescribed thickness between the lower part 7 and a mold bottom wall flat section 9, a plastic blown container can be simultaneously completed. At this time, since at the upper parts of the molds 2, the blowing pin 3 abuts against opening slanted surfaces of the molds 2, and the upper resin bar 12 is cut, the plastic blown container is completed at this part. The lengths of the main body of the blowing pin 3 and rod 4 can be adjusted finely. |
