| 摘要 |
PURPOSE:To permit to achieve smooth mold-clamping control without employing electric contact by a method wherein a necessary load output signal is detected by a load meter provided between a fixed die and a tie bar to effect the speed control. CONSTITUTION:The mold-clamping device is constituted so that the mold- clamping operation of the moving die 14 with respect to the fixed die 12 is effected by a mold-clamping cylinder 22 through a link mechanism 20. The load meter 24 is provided between the fixed die 12 and the tie bar 18 and the system is constituted so that a mold-clamping speed reducing command is outputted to a mold-clamping speed control actuator 46 when the load output signal, generated by the load meter 24, has arrived at a predetermined value upon the mold-clamping operation of the moving die 14. The load meter 24 is preferable to be constituted so as to detect an elongation, applied between the tie bar 18 and the fixed die 12, as an electric displacement after the moving die 14 is contacted with the fixed die 12. According to this method, a proper mold-clamping speed switching signal may be outputted through a contactless circuit and the smooth control of the mold-clamping speed may be effected. |
