Method of controlling change-over of pressure maintaining stage for injection molding machine
专利汇可以提供Method of controlling change-over of pressure maintaining stage for injection molding machine专利检索，专利查询，专利分析的服务。并且PURPOSE:To make it possible to effect stabilized filling of a cavity with a melted resin, by carrying out the change-over of the loading stage to the pressure maintaining stage when the speed of the filling stage has reached a predetermined speed. CONSTITUTION:As the injection and filling stage proceeds and a cavity is filled with a melted resin, the forward movement of a screw 11 decreases from a final set speed V3, and the real speed at every moment is inputted from a speed detector 31 via an A/C converter into a CPU34. On the other hand since a set speed V0 for change-over of pressure maintaining is inputted into the CPU34 from a setting apparatus 33, the filling stage is completed when the forward speed of the screw 11 lowers to V0, and a command for controlling the pressure maintaining stage is issued. If a position detector such as a potentiometer and an encoder as a speed detector 31 is used, an input digital value of the position is inputted into the CPU34, and is divided by a time value by a reference clock built in the CPU34 to calculate the forward speed of the screw 11 and when it lowers to the set speed V0, the change-over of the pressure maintaining is effected.，下面是Method of controlling change-over of pressure maintaining stage for injection molding machine专利的具体信息内容。
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