Energy-saving die casting machine

The utility model relates to an energy-saving die casting machine. The energy-saving die casing machine comprises a mode locking oil cylinder, an injection oil-way body, a first oil-way system, a second oil-way system, a third oil-way system, a slow injection system, an injection energy accumulator, a pressurizing energy accumulator and a low pressure energy accumulator, wherein the first oil-way system, the second oil-way system and the third oil-way system are respectively connected with the injection energy accumulator, the pressurizing energy accumulator and the low pressure energy accumulator; a mode locking body is connected with the first oil-way system, the second oil-way system and the third oil-way system through an oil-way control system; the injection oil-way body comprises a main oil cylinder; the injection energy accumulator and the pressurizing energy accumulator are arranged on the main oil cylinder; the injection energy accumulator acts at the back of the oil-way injection direction; the pressurizing energy accumulator acts in front of the oil-way injection direction; the output end of the slow injection system is connected with the oil-way control system; during die assembly, the low pressure energy accumulator drives a mode locking push rod inside the mode locking oil cylinder to act; after the die assembly is completed, the slow injection system is used for charging the low pressure energy accumulator.