| 摘要 |
PURPOSE:To accurately and rapidly detect the fluidized and cured state of the resin in each part of a mold, by detecting resin pressure during fluidization, a plunger falling speed and a fluidized leading end position. CONSTITUTION:A resin tablet thrown in a mold 1 is pressed by a plunger 3 to be converted to molten resin and carried to a cavity 7 through a gate 6. Pulse voltage is outputted from a pulse generator 16 by the order of a microcomputer 14 to cyclically open and close the electromagnetic relief valve 17 of a molding machine. Resin pressure and the displacement of the plunger 3 are detected by pressure detectors 8, 9, 10 and a displacement detector 11 and the data in the following state of pressure change is stored in a computer 14. At the point of time when the signal from the pressure detector 10 is not followed to the signal of the pulse generator 16, the computer 14 performs the operation of viscosity and a gate seal state on the basis of the stored data and the result thereof is outputted by a printer 18. |
