| 摘要 |
PROBLEM TO BE SOLVED: To simplify the structure of a split mold opening/closing mechanism to be installed on an intermediate mold assembly of an injection/blowing molder for molding a threaded container and also simplify the structure of the intermediate mold assembly to make it compact. SOLUTION: Split mold halves 20a and 20b for molding a top of a preform P are arranged around a core mold 7 at the intermediate mold assembly 6. In addition, the split mold halves 20a and 20b are opened and closed by a drive device such as a cylinder device 16 or the like mounted on the front mold 2 side through a power transmission mechanism (a pressurizing rod 19, a spring device 18, a stripper plate 17, spring devices 21a and 21b and a cam block 23). |
