| 摘要 |
A method of detecting the characteristics of resin in an injection molding machine having an on-off operating mechanism for the flow path of the resin and a method of controlling the weight of the injected resin on the basis of the detected characteristics of the injected resin. Such an arrangement is adopted that, in a state where the aforesaid flow path on-off operating mechanism is closed after the resin is plasticized and measured, processes, in which urging forces of predetermined urging values po, p are applied to the screw to balancingly move the screw until it stops, are successively carried out under a given molten state value Z of the resin, and the relationship between the urging value po, p and the moving distance Sr of the screw are approximated by a given functional equation, to thereby obtain the relationship between a molten resin pressure P and a molten resin volume. |
