| 摘要 |
PROBLEM TO BE SOLVED: To provide a method for resuming the operation of an injection molding machine which enables the operation to be accurately resumed in a short time without clogging a feed part with a grainy resin even when a screw reaches its advance limits or nearby position to the former, and a heating barrel temperature control device for this method. SOLUTION: This method comprises the following steps: first, a set value for molding operation and a set value for shift control at which the set value of a root part of a heating barrel 4 is set lower than the set value for molding operation, are set/stored in memory 16 respectively; a detected value determined by a screw position detector 13 is judged by a comparator 15 to find whether the detected value is present at the screw advance limits or nearby position to the former preset in a screw position setting unit 14. When the screw is at the preset position, the operation is resumed by controlling the temperature of the heating barrel 4 referring to the set value for shift control. When a signal for the completion of preventing the cold start of the screw is issued, the operation proceeds to the molding mode by switching the set value to one for molding operation. COPYRIGHT: (C)2004,JPO&NCIPI
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