碳纤维成型设备联锁控制系统设计

Design of Interlocking Control System for Carbon Fiber Molding Equipment

【目的】为了解决碳纤维增强复合材料在模压固化过程中存在的温度与压力控制不能同步、自动化程度低等问题。【方法】本研究对传统模压设备及系统进行改造,增加模具内测温电阻,并通过I/O通信模块来实现模温机PLC控制器与液压机PLC控制器间的通信,使PLC程序根据模温机温度变化来控制液压机压力的大小。【结果】该设计可将物料温度实时反馈给模温机PID温度调节系统,解决固化过程中温度测量不准确、调节不及时的问题,实现温度与压力间的联锁,使固化过程中温度与压力实现同步。【结论】联锁控制系统使碳纤维增强复合材料模压成型工艺的自动化程度和生产效率得到提高,更具市场性和适用性。

[Purposes]In order to solve the problem that the temperature and pressure control cannot be synchronized and the degree of automation is low in the process of molding and curing of carbon fiber reinforced composites.[Methods]In this study,the traditional molding equipment and system were reformed to increase the temperature measurement resistance in the mold,and the communication between the PLC controller of the mold temperature machine and the PLC controller of the hydraulic press was realized through the I/O communication module,so that the PLC program can control the pressure of the hydraulic press according to the temperature change of the mold temperature machine.[Findings]The design can feedback the material temperature to the PID temperature regulation system of the molding temperature machine in real time,solve the problem of inaccurate temperature measurement and untimely adjustment in the curing process,realize the interlocking between temperature and pressure,and synchronize the temperature and pressure in the curing process.[Conclusions]The interlocking control system improves the automation and production efficiency of the molding process of carbon fiber reinforced composites,and is more marketable and applicable.