压铸机压射系统全闭环实时控制应用

Application of Whole Process Closed Loop Real-time Control Injection System for Die-casting Machine

该文介绍了冷室压铸机压射系统的全过程闭环实时控制技术的应用。为了提高压铸机模具型腔内的压铸件质量,该系统采用新型数字式伺服驱动器和液压阀芯驱动专利技术——VCD音圈驱动技术的高频响比例节流阀,对压射油缸的速度,位置和压力进行全过程的闭环实时控制,大大提高了压铸机的整体机动性,稳定性和可靠性。

This paper introduces the application of closed-loop real-time control for the whole process of injection system in cold chamber Die-casting machine. To improve the quality of the parts in the mould, this system employs the newly digital servo drive and high response proportional throttle valve with the hydraulic spool drive which adopts a newly patented technology Voice Coil Drive. The velocity, position and pressure in the whole process of injection cylinder is controlled in closed-loop and real-time fashion, which significantly enhances the maneuverability, stability and reliability of Die-casting machines.