| 摘要 |
PURPOSE:To enable to obtain a stabilized injection compression-molded article always, by changing over to a compression process from a filling process when a filled state arrives at the predetermined filled state in the inside of a mold cavity by detecting the state of filled resin within the mold cavity. CONSTITUTION:An electric signal is set by a filled state setting device 29 through resin pressure, a resin temperature or a mold opening quantity to be detected by a pressure sensor 24, a temperature sensor 26 or a mold opening quantity detector 32 respectively. A comparator 30 compares a value set by the setting device 29 with values to be detected by both the sensors 24, 26 or a sensor 32 and when the set value and the detected values coincide with each other, sends out a signal, controls a solenoid relief valve 28 and changes over hydraulic pressure of a closing cylinder 12 to closing pressure for a compression process. With this construction, when filling of resin is performed, the filled state in the inside of a mold cavity is detected by the filled state setting device 29 such as the pressure sensor 24 or the temperature sensor 26 or the mold opening quantity detector 32 and when the state arrives at completion terms of a predetermined filling process, the process is changed over to the next compression process. |
