INJECTION DEVICE, MOLDING MACHINE AND QUALITY MANAGEMENT PROGRAM

摘要

To provide an injection device capable of suitably specifying the filling start of a molding material.SOLUTION: In an injection device 9, a position sensor 49 detects the position of a plunger 23 slidable in a sleeve 21 leading to the inside of a mold 101. An injection pressure sensor 57 detects injection pressure to be applied to a molten metal in the sleeve 21 by the plunger 23. A gate arrival time specification part 73 specifies gate arrival time tin which the plunger 23 has arrived at a prescribed gate arrival time position Dwith the progression of injection based on the detection value of the position sensor 49. A filling start point specification part 75 specifies filling start time tin which the injection pressure exceeds prescribed filling start pressure Pwith the progression of the injection in prescribed monitor time Tincluding the gate arrival time tbased on the detection value of the injection pressure sensor 57.SELECTED DRAWING: Figure 4