| 摘要 |
PROBLEM TO BE SOLVED: To provide a compression control device for an injection molding, enabling the injection molding machine to perform a compression operation without delay.SOLUTION: The compression control device for the injection molding machine comprises: establishment determination means which determines whether compression operation start condition is established or not during successive sampling cycles; and movement amount calculation means which, when the establishment determination means determines that the compression operation start condition is established during the successive sampling cycles, calculates a movement amount which the compression member moves since a time point when the compression operation start condition is established to the sampling cycle which is immediately after the time point, as a calculated movement amount. The compression control device outputs a movement command for the compression member in the sampling cycle which is immediately before the time point when the compression operation start condition is established, in such a way that the movement amount becomes equal to the calculated movement amount obtained by the movement amount calculation means. The injection molding machine therefore can perform the compression operation without delay, without changing the sampling cycle.SELECTED DRAWING: Figure 4 |
