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1. (WO2018084163) ELECTRIC DIE CAST MACHINE AND METHOD FOR CONTROLLING SAME

Pub. No.:    WO/2018/084163    International Application No.:    PCT/JP2017/039466
Publication Date: Sat May 12 01:59:59 CEST 2018 International Filing Date: Thu Nov 02 00:59:59 CET 2017
IPC: B22D 17/32
Applicants: TOYO MACHINERY & METAL CO., LTD.
東洋機械金属株式会社
Inventors: IKEDA Shingo
池田 伸吾
NAKATSUKA Yoshihisa
中塚 吉久
Title: ELECTRIC DIE CAST MACHINE AND METHOD FOR CONTROLLING SAME
Abstract:
[Problem] To provide an electric die cast machine and a method for controlling same that are capable of effectively suppressing variations in rises in the pressure-increase pressure. [Solution] An electric die cast machine 1 executes a pressure increase preparation operation in which, when the position of advancement of an injection plunger 20 reaches a pressure increase switching position L2 during a high-speed injection operation, the torque T of a first electric motor 11 and a second electric motor 12 is limited to being no greater than a limit torque value Tr set to be lower than a maximum torque value Tmax of the electric motors, and the injection plunger 20 is advanced. The electric die cast machine 1 executes a pressure increase operation in which the limiting of the torque of the first electric motor 11 and the second electric motor 12 is canceled when a torque limiting cancel criterion is satisfied during the pressure increase preparation operation, and the injection plunger 20 is pressed forward.