DIE CASTING MACHINE AND CONTROL METHOD OF DIE CASTING MACHINE

摘要

The damage to devices are avoided, by performing operation control of a hydraulic operating means and an electric servomotor, that are adapted as drive sources in an injection step, separately and not performing coordinate control. A die casting machine 1 includes a tubular injection sleeve 12, an injection plunger 13, an electric servomotor 17 and a hydraulic operating means 21 which are used as a drive source of an injection step, and a control means 30 which controls the electric servomotor 17 and the hydraulic operating means separately, when injecting and filling the cavity of the mold, which has been closed, with the molten metal by the advancing of the injection plunger 13, during a low-speed injection step and a high-speed injection step which is performed at a higher speed than the low-speed injection step, in the injection step.

主权项

1. A die casting machine comprising a tubular injection sleeve to which a molten metal is supplied, and an injection plunger which advances and retracts inside the injection sleeve, in which an electric servomotor and a hydraulic operating means are used as a drive source for an injection step which injects and fills a cavity of a mold, which has been closed, with the molten metal by an advancing of the injection plunger, the die casting machine comprising:
a control means which controls an operation of the electric servomotor and an operation of the hydraulic operating means separately, when injecting and filling the cavity of the mold, which has been closed, with the molten metal by the advancing of the injection plunger, during a low-speed injection step and during a high-speed injection step which is performed subsequent to the low-speed injection step and which is performed at higher speed than in the low-speed injection step, in the injection step.