| 摘要 |
PROBLEM TO BE SOLVED: To provide a method and apparatus for regulating temperature of stretch blow molding injection preform to heat and regulate the temperature in a short time with the preform uniformly or in a free temperature distribution. SOLUTION: The apparatus for regulating temperature of stretch blow molding injection preform comprises split molds 4 having a cavity 20 for containing the preform 5, a first heat insulation pot 2 for openably containing the mold 4 with an elastic element 23 on parting surfaces P by an axial movement via a conical first guide hole 10 engaged with a conical head 18 and a conical second guide hole 16 engaged with a tapered periphery 19 with a first heating coil 3 wound on its periphery to conduct high-frequency current, an elevation drive source 13 for vertically movably supporting the pot 2, a reference plate 1 for placing the pot 2, and an inner heating mold 6 disposed in the mold 4 at a lower part of the plate 1 to advance or retreat to be adjustable at its temperature by high-frequency induction heating. |
