针对热塑压力成型加工装置的工艺特性与控制要求,基于PLC技术,采用变频器、触摸屏、特殊功能模块等电气元件,对装置的工作过程进行数据采集、处理与控制。实验表明该系统能有效、稳定的完成对再生塑料产品的加工,即能实现自动送片、加热、压力成型等加工顺序与操作方式的控制。 Aiming at the process characteristics and control requirements of the thermoforming molding device, based on the PLC technology, the working process of the device is collected, processed and controlled by using electrical components such as inverter, touch screen and special function module. Experiments show that the system can finish the processing of recycled plastic products effectively and stably, that is to say, it can control the order and operation of automatic feeding, heating and pressure molding.