Double-proportion control oil pressure system of die-casting machine

• Main Authors: LIANG YINGGAO, YE WEIXIONG
• Format: Patent
• Language: Chinese; English
• Published: 18.02.2022
• Subjects: BLASTING; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR; FLUID-PRESSURE ACTUATORS; FLUID-PRESSURE ACTUATORS, e.g. SERVO-MOTORS; HEATING; HYDRAULICS OR PNEUMATICS IN GENERAL; LIGHTING; MECHANICAL ENGINEERING; SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; WEAPONS

The utility model discloses a double-proportion control oil pressure system of a die-casting machine, which comprises an oil tank, an oil pump, an oil supply pipeline, the die-casting machine and an oil return pipeline, the oil supply pipeline comprises a first three-way pipe, a main filter pipe, a bypass filter pipe, a second three-way pipe, a double-proportion control valve, a throttle pipe, a throttle valve, an overflow pipe and an overflow valve, double-loop filtering can be conducted on the oil supply pipeline through the main filter pipe and the bypass filter pipe, and when the main filter pipe breaks down, the bypass filter pipe can be switched to filter hydraulic oil, so that production halt of the die-casting machine due to the fault of the main filter pipe is avoided, continuous production of the die-casting machine is facilitated, and the production efficiency of the die-casting machine is improved. And the oil pressure and the flow of the oil supply pipeline can be adjusted through the double-prop