采用变频同步控制的注塑机系统节能效果明显,为用户带来可观的经济效益,值得推广和应用众所周知,注塑机的注塑成型过程是一个变负载过程。对各种状态压力的控制传统方式是通过设在油泵出口的比例流量阀和比例压力溢流阀来调节负载压力和流量,多余的液压油通过压力比例阀和溢流阀流回油箱,这样的控制系统造成能源浪费严重,油温上升,其粘稠度变低,需要定期更换,浪费了资源。 Injection molding machine system with frequency conversion synchronous control has obvious energy-saving effect and brings considerable economic benefits to users. It is worth popularizing and applying. As we all know, injection molding machine injection molding process is a variable load process. The traditional way to control various conditions of pressure is to adjust the load pressure and flow rate through the proportional flow valve and the proportional pressure relief valve at the outlet of the oil pump. The excess hydraulic oil flows back to the tank through the pressure proportional valve and the relief valve Control system causes serious energy waste, oil temperature rise, the viscosity becomes low, the need for regular replacement, a waste of resources.