基于PLC的色母粒生产线管理系统开发

发布时间：2018-05-10 11:27

本文选题：色母粒 + 自动配料　；参考：《山东大学》2017年硕士论文

【摘要】：生活中塑料制品无处不在,已成为人们日常生活的必备物品之一。色母粒作为塑料制品的主要原料在塑料工业中占有重要地位,色母粒质量直接关系着塑料制品的外观和使用性能。针对国内色母粒生产设备陈旧,面临环境污染、生产效率低、自动化程度低等诸多问题,本课题受企业委托开发了一套高精度的自动化色母粒生产线,提高了色母粒的产品质量和生产效率。这不仅给企业带来良好的经济效益,而且提高了国内色母粒生产技术。本课题以自动计量配料系统作为重点研究对象,开发了一套包含上料、计量、密炼、码垛、生产管理在内的色母粒生产线,主要研究内容如下:1)分析国内外色母粒的发展现状,结合企业实际生产情况,改进了色母粒生产工艺流程,提出了整套智能化生产系统方案。2)重点分析了色母粒动态计量的机理,在此基础上建立了计量配料的数学模型并对配料误差进行分析,然后对计量配料的控制过程作了进一步的研究,结合色母粒配料情况,将带遗忘因子的迭代自学习的控制方法应用于计量配料过程中,通过仿真及测试验证了该方法的优越性。3)依据生产要求设计了一套主从分布式的色母粒生产线总体控制方案,采用工控机作为管理级,西门子S7-300PLC作为控制级,通过PROFIBUS-DP总线保证两者信息的交互,实现了产品精确自动化生产的硬件要求。4)以Visual Studio 2008为开发工具,使用C#高级语言和SQL Server 2005数据库,开发了一套上位机信息管理系统。该管理系统负责对整个生产线的在线监控,不仅实现了配方管理、生产管理、报警检测、视频监控等生产方面的基本功能,而且能根据实际配料情况,主动调整配料参数保证产品的合格率。通过以上研究工作,最终完成了色母粒生产线控制系统的开发,通过实际生产证明了该生产线满足企业的生产要求,提高了企业的经济效益,提升了企业的核心竞争力,并有良好的市场推广价值。
[Abstract]:Plastic products are everywhere in life and have become one of the necessary items in people's daily life. As the main raw material of plastic products, color masterbatch plays an important role in the plastic industry. The quality of color masterbatch is directly related to the appearance and performance of plastic products. In view of many problems, such as outdated production equipment, environmental pollution, low production efficiency and low automation degree in China, a set of automatic color masterbatch production line with high precision was developed by the enterprise. The product quality and production efficiency of the color masterbatch are improved. This not only brings good economic benefits to enterprises, but also improves the production technology of domestic color masterbatch. This subject takes the automatic metering and batching system as the main research object, and develops a set of color master batch production line including feeding, metering, mixing, palletizing and production management. The main research contents are as follows: 1) analyzing the development status of color masterbatch at home and abroad. According to the actual production situation of the enterprise, the technological process of color master batch production is improved, and the whole set of intelligent production system scheme. 2) the mechanism of dynamic measurement of color master batch is analyzed emphatically. On the basis of this, the mathematical model of metering burden is established, and the error of proportioning is analyzed, then the control process of metering batching is further studied, and combined with the batching of color masterbatch, The iterative self-learning control method with forgetting factor is applied to the process of metering ingredients. The superiority of the method is verified by simulation and test. 3) according to the production requirements, a set of master and slave overall control scheme of color master batch production line is designed. Using industrial control computer as management level, Siemens S7-300PLC as control level and PROFIBUS-DP bus to guarantee the interaction of the two information, the hardware requirement of product precise automation production. 4) Visual Studio 2008 is used as the development tool. Using C # language and SQL Server 2005 database, a host computer information management system is developed. The management system is responsible for the on-line monitoring of the entire production line. It not only realizes the basic functions of production such as formula management, production management, alarm detection, video surveillance, etc., but also can be based on the actual batching situation. Adjust the batching parameters actively to ensure the qualified rate of the product. Through the above research work, the final development of the control system of the color master batch production line has been completed. The actual production has proved that the production line meets the production requirements of the enterprise, improves the economic benefit of the enterprise, and promotes the core competitiveness of the enterprise. And has the good market promotion value.
【学位授予单位】：山东大学
【学位级别】：硕士
【学位授予年份】：2017
【分类号】：TP311.52;F273;F426.7

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