| 摘要 |
PROBLEM TO BE SOLVED: To provide an injection molding machine coping with a fluctuation in nozzle touch pressure.SOLUTION: An injection molding machine comprises an injection device that injects a molding material into a mold device, a transfer device that makes the injection device advance into and retreat from the mold device, and a controller that controls the transfer device. The transfer device comprises a hydraulic pump, a driving source that actuates the hydraulic pump, a hydraulic actuator that includes a pressure chamber generating a nozzle touch pressure by the hydraulic pressure of a hydraulic fluid supplied from the hydraulic pump, and a control valve that controls a flow of the hydraulic fluid between the pressure chamber and the hydraulic pump. A pressure detector is provided which detects the nozzle touch pressure. The controller monitors the nozzle touch pressure by means of the pressure detector in a state restricting the flow of the hydraulic fluid from the pressure chamber to the hydraulic pump by the control valve.SELECTED DRAWING: Figure 3 |
