| 摘要 |
PURPOSE:To obtain constant low pressure mold clamping force without providing auxiliary cylinder by a method wherein the force applied to a crosshead is controlled so that the force applied to a movable platen becomes to be the set value during the low pressure mold clamping. CONSTITUTION:A positional detecting device 8 transmits a crosshead positional data signal 9 to an operational controlling device of injection molder 10. A low pressure mold clamping interval setter 11 to set low pressure mold clamping interval and a low pressure mold clamping force setter 12 to set low pressure mold clamping force are connected to the operational controlling device 10, which forms a driving controlling signal 15 on the basis of a low pressure mold clamping interval setting signal 13 sent from the low pressure mold clamping interval setter 11 and a low pressure mold clamping force setting signal 14 sent from the low pressure mold clamping force setter 12, and the signal 9 sent from the device 8, in order to give to a mold clamping driving device 1. |
