| 摘要 |
PROBLEM TO BE SOLVED: To provide an injection molding machine which can efficiently heat and cool a mold near a cavity, and can significantly cut cooling time after an injection process while enhancing the transferability and fluidity of a resin, and an injection molding method which uses the injection molding machine. SOLUTION: The injection molding machine 1 comprises a mold 2 with a cavity 3, mold temperature measuring means 4 and 5, a solenoid induction heating means which heats the mold 2 under solenoid inductive action by energizing a high frequency induction coil 6, a water-cooling means which cools the mold 2 by circulating cooling water W through a circulating water passage 8, a water draining means which forces out the cooling water W by supplying compressed air A to the circulating water passage 8, and a control circuit 15 which controls a heater drive circuit 7, valves 11 to 14, etc. In addition, the coil 6 and the circulating water passage 8 are arranged near the cavity 3 of the mold 2. When the mold 2 is heated by the solenoid induction heating means, the operation is controlled so as to make the circulating water passage 8 a cavity state from which the cooling water W is discharged. COPYRIGHT: (C)2008,JPO&INPIT
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