Energy-saving die casting machine

Abstract

An energy-saving die casting machine which comprises a die locking oil cylinder, an injection oil path body, a first oil path system, a second oil path system, a third oil path system, a slow injection system, an injection energy accumulator, a boost energy accumulator and a low-pressure energy accumulator. The first oil path system, the second oil path system and the third oil path system are connected with the injection energy accumulator, the boost energy accumulator and the low-pressure energy accumulator respectively. A die locking body is connected with the first oil path system, the second oil path system and the third oil path system through an oil path control system. The injection oil path body comprises a main oil cylinder; the injection energy accumulator and the boost energy accumulator are arranged on the main oil cylinder, the injection energy accumulator acts on the rear portion in the direction of oil path injection, and the boost energy accumulator acts on the front portion of the direction of oil path injection; an output end of the slow injection system is connected with the oil path control system; in the die assembling process, the low-pressure energy accumulator drives a die locking push rod in the die locking oil cylinder to act, and after die assembly is completed, the slow injection system charges the low-pressure energy accumulator.

Description

technical field [0001] The invention relates to a die-casting machine device, in particular to an energy-saving die-casting machine. Background technique [0002] Die casting machine is a series of industrial casting machinery used to inject molten metal into a mold for cooling and forming under pressure, and obtain solid metal castings after mold opening. With the advancement of science and technology and industrial production, especially with the development of industries such as automobiles, motorcycles and household appliances, die-casting machines are playing an increasingly important role in industrial production. [0003] Die casting machine is a typical periodical variable load equipment, a complete production cycle includes stages such as mold closing, injection, cooling and mold opening and ejection. Generally, the power of hydraulic equipment is provided by a quantitative oil pump, and the motor that drives the oil pump runs at its rated speed all the time. When...

AI Technical Summary

Problems solved by technology

The second is throttling loss

Since the throttling area of ​​the directional valve is relatively large, most of the throttling loss occurs on the proportional valve

At the same time, due to the long-term full-speed circulation of the hydraulic pressure and the severe mechanical friction of the hydraulic parts, the oil temperature is too high, the noise is too large, and the mechanical life is shortened.

The third is design margin loss

Usually in the design, commonality is generally considered, and the design is based on the maximum capacity, so the designed capacity of the user's oil pump motor is much higher than the actual need, and there is a phenomenon of "big horses and small carts", resulting in waste of electric energy

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