J455 500Kg low pressure casting machine is a general equipment for aluminum alloy low pressure casting, which can be widely used in the production of aluminum alloy castings in automobile, motorcycle, instrument, textile machinery and aviation space industry industry& nbsp;& nbsp; The machine is composed of a main machine (including a molding mechanism, a static mold four core pulling mechanism, a frame, a safety limit mechanism, and a piece taking mechanism), a hydraulic system, a molten pool type insulation furnace, a liquid level pressurization device, an electrical control system, and a mold cooling system.Performance characteristics: The closing mechanism is guided by eight columns. Adopting a fast and slow closing method to improve work efficiency and reduce impact on the mold. The static template is rigidly connected to the rack. The lower part of the upper template is equipped with four ejector rods, which can eject the casting from the mold when the mold is in place; The design of the guiding structure between the moving template and the large column is novel, which can offset the thermal expansion caused by the high temperature of the mold; Having three safety protection measures to ensure the safety of operators during work and maintenance; Unique mold rapid positioning device; The picking manipulator has three degrees of freedom of movement, namely the X-axis, Y-axis, and rotation, to ensure that the casting is not damaged during picking and can correctly determine whether the casting has fallen. The hydraulic system is driven by imported variable displacement pumps and accumulators, which can achieve low-pressure operation, high-pressure locking, and save energy; The machine is equipped with multiple mold air cooling and water cooling circuits, which can automatically control the cooling time mode; Adopting a molten pool type insulation furnace. Radiation heating, PID control, rated temperature range: 680-750 ℃, temperature control accuracy:± 5℃； The rigid connection between the insulation furnace and the static template shortens the distance between the aluminum liquid level in the insulation furnace and the mold, and reduces the process requirements of the casting. The electrical control system adopts a monitoring method of upper and lower computers. Using an imported PLC as the lower control machine, complete the sequential operation of the main machine, liquid level pressurization, and mold cooling control of the low-pressure casting machine. Using an imported human-machine interface or industrial control computer as the upper computer, complete the parameter setting and modification of the low-pressure casting machine, monitor and display pressure data and curves, as well as machine working status and fault alarm information. The monitoring method of the upper and lower computers ensures that even in the event of a malfunction in the upper computer, the lower control system can still automatically operate according to the preset process parameters, further improving system stability. The liquid level pressurization device adopts an imported proportional valve and high-precision pressure sensor to achieve pressure detection and real-time closed-loop feedback control in the insulation furnace, with PID adjustment method. It has functions such as multi-level linear pressurization, automatic tracking and setting of pressurization curve, insulation furnace leakage compensation, and liquid level compensation. High pressure control accuracy and good repeatability ensure the stability and consistency of the low-pressure pouring process, effectively improving the yield of castings.Main technical parameters Parameter NameParameter valueCompanyHolding furnace capacity (Al)five hundredKgStatic template size2000X1600mmMoving template size1780X1280mmDistance between guide bars1400X900mmMoving template travelone thousand and fiftymmMinimum opening gearseven hundred and ninety-fivemmOpening forceone hundred and seventy-sixKNCombining forceone hundred and twentyKNEjection forceone hundred and seventy-sixKNCore pulling forceseventyKNCore pulling cylinder stroke200/150mmOil pump motor powerelevenKWRated power of insulation furnacethirty-sixKW
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