基于Windows的气辅注射注气的实时控制方案  

The Real-time Control Scheme of Gas Assisted Injection Molding Based on Windows

作　　者：柳和生[1] 匡唐清[2] 周国发[2] 张庸夫[2] 

机构地区：[1]上饶师范学院,江西上饶334000 [2]南昌大学机电工程学院聚合物加工研究室,江西南昌330029

出　　处：《轻工机械》2005年第2期87-90,共4页Light Industry Machinery

基　　金：江西省主要学科跨世纪学术和技术带头人培养计划资助

摘　　要：本文针对气体辅助注射成型注气控制这样一个实时性要求较高的计算机控制系统,分析了控制系统的任务要求。通过分析基于Win98平台进行实时控制的技术限制,指出采用Win98的定时器不能满足实时控制要求,并提出了实现高精度实时控制的5种方案。通过对这5种方案的分析比较,并根据实际情况,确定在本注气控制系统中采用WIN-DOWS系统的多媒体扩展库所提供的多媒体定时函数来实现实时控制要求。本文提出了使用该函数编写控制软件的应注意的问题。该控制系统在气体辅助注塑成型注气控制系统上能可靠运行并达到了预期目标。The gas pressure control system for gas-assisted injection molding is a computer control system with a high real-time demand and it's very difficul t to accomplish in Win98 environment because of Win98's internal shortcomings. In this paper, five methods used for real-time control of gas pressure with high accuracy are proposed and analyzed in details. The multimediatiming function of fered in the multimedia expanding library of Windows operationsystem is adopted in the gas pressure control system. By means of this method,the control system can run stably and correctly. Moreover, how to use the multimedia timing function is also introduced briefly.

关 键 词：气体辅助注射成型 WINDOWS98 多媒体定时函数 Visual C++6.0 实时控制 

分 类 号：TQ320.66[化学工程—合成树脂塑料工业] TP273[自动化与计算机技术—检测技术与自动化装置]