| 摘要 |
PURPOSE:To offer an injection molding machine which is capable of making correctly control of an injection rate and injection pressure, by controlling a hydraulic driving device so that the injection rate becomes of a predetermined injection rate by comparing a screw position detecting device output with a predetermined screw position. CONSTITUTION:A movement position of a screw is detected always by a screw position detecting device and when the screw passes through a predetermined position decided by a screw position setting device, an injection rate of the screw beyond that point is changed over to a rate decided by an injection rate setting device. As for succession order of a screw position which has been set by the screw position setting device, a predetermined priority is given to the order. In case, therefore, the screw passes through a first screw position and arrives at a second screw position after the screw has started the movement, if the priority of the succession order is 1 the second and 2 first screw positions, the screw is controlled so that the rate of the screw becomes of an injection rate decided corresponding to the first screw position during a period of the time until the screw arrives at the second screw position and after passing of the screw through the first screw position. |
