| 摘要 |
PURPOSE:To automatically control injection pressure and injection flow rate in such a way that injection pressure flow curves which have been drawn beforehand are photoelectrically read out, the injection pressure and flow rate in the injection tube are compared, and the flows rate into the hydraulic cylinder is controlled. CONSTITUTION:After an injection pressure flow curve C has been drawn beforehand on the white paper 39, photoelectric detection is made for the flow position on the curve C corresponding to the injection pressure which has been detected by an injection pressure detector 36, the detected value is sent to a flow indicating regulator 40, whereby it is compared with the flow rate which has been detected by an electromagnetic flow meter 35, and the compared operational value is sent to an electromagnetic hydraulic servo valve 41. Thus, since the flow rate to be supplied into a hydraulic cylinder 10 is controlled, the injection pressure and injection flow rate can be automatically controlled. |
