| 摘要 |
PCT No. PCT/JP92/00431 Sec. 371 Date Jan. 14, 1993 Sec. 102(e) Date Jan. 14, 1993 PCT Filed Apr. 7, 1992 PCT Pub. No. WO92/18317 PCT Pub. Date Oct. 29, 1992.A method and an apparatus for monitoring injection pressure, using the relationship between positions of a screw (1), filling of resin in a cavity and injection pressure. Mold cavity data are stored, whereby a display screen (2) displays, based on said data, a configuration of the cavity and straight lines corresponding to cross sections along which the cavity is divided into a plurality of regions. Screw positions required to sequentially fill the divided regions of the cavity with the resin are obtained to be displayed on a coordinate axis representing a screw position in a pressure waveform graph (22). Then an operator changes the setting of molding conditions referring to the data on the display screen, and carries out the injection to obtain the pressure data corresponding to the screw position to be displayed on the pressure waveform graph (22).
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