J459 900Kg 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, textile machinery and aerospace industry& nbsp;& nbsp; The machine is composed of a main machine (including a molding mechanism, a side mold closing mechanism, an ejection mechanism, a picking tray, a safety limit mechanism, an upper and lower mold locking mechanism), a hydraulic system, an insulation furnace and its moving and lifting devices, a liquid level pressurization device, an electrical control system, and a mold cooling system.Performance characteristics: The clamping mechanism is guided by four pillars and adopts a fast and slow clamping method to improve work efficiency and reduce impact on the mold. Due to the use of a four column structure, the machine has good rigidity; The movable formwork is equipped with a safety limit device to prevent accidental falling of the movable formwork; Four side molds are installed on an octagonal base; The picking tray adopts a rotating oil cylinder, which operates smoothly and the up and down positions are adjustable; The loading, unloading, and fixing of the mold adopt an automatic hydraulic locking mechanism, which ensures quick installation and disassembly of the mold, accurate and reliable positioning; The machine can be equipped with multiple cooling circuits, each of which can be air-cooled and water-cooled separately. Cooling control can be selected by time mode or automatic mold temperature control mode; Adopting a molten pool type insulation furnace, radiation heating, PID control, rated temperature range: 680-750 ℃; Temperature control accuracy:± 5℃； The insulation furnace is fixed on the transmission trolley, and the lifting mechanism is used to lift the furnace body. The hydraulic motor is used to drive the trolley to move smoothly before and after; 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, thereby further improving system stability; The liquid level pressurization device adopts imported pneumatic proportional valves and high-precision pressure sensors 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. technical parameter Serial numberParameter NameParameter valueCompanyoneHolding Furnace Capacity (AL)nine hundredKgtwoMoving template size1830x720mmthreeStatic template size2460X1900mmfourMoving template travelone thousand and two hundredmmfiveOpening forceone hundred and twentyKNsixCombining forceone hundred and seventy-sixKNsevenMinimum opening gearsix hundredmmeightMaximum opening gearone thousand and eight hundredmmnineHydraulic system working pressuretwelveMPatenEjection strokefiftymmelevenEjection forceone hundred and eightyKNtwelveSide mold cylinder opening forceseventyKNthirteenSide mold cylinder stroketwo hundred and fiftymmfourteenOil pump motor powereighteen point fiveKWfifteenInsulation furnace powerthirty-sixKWsixteenTotal weight of the machinetwenty-four thousandKg
