| 摘要 |
PROBLEM TO BE SOLVED: To improve a production efficiency, molding quality, and yield, and at the same time, and to enhance an energy saving property and stability of movement (control).SOLUTION: In the control method, when controlling of an injection process Si having a filling process Sic and a pressure keeping process Sip, a hydraulic pump 5x (5a, 5b) which can set at least a fixed discharge flow rate Qm of a high flow rate and a fixed discharge flow rate Qs of a less flow rate than the high flow rate is used as a hydraulic pump 5, and at the same time, at least one or more switching conditions to switch the fixed discharge flow rate Qm, Qs to at least one or more physical quantities (Xs, Vs, Ps) accompanying the operation of the injection process Si are preset. When the injection process Si operates, the fixed discharge flow rate Qm of a high flow rate is set and the control of the concerned injection process Si is carried out, at the same time, the physical value is monitored, and if at least one or more physical values satisfy at least one or more switching conditions, the switching to the fixed discharge flow rate Qs of a less flow is carried out to control the injection process Si. |
