浸塑产品生产线的PLC技术改进

文档编号:ZD1121    文档字数:11310,页数:42

摘    要
 本文介绍了浸塑生产工艺和要求，结合PLC技术在原先浸塑生产线的基础上进行了改进。原先的系统采用的是继电器接触器控制，烘箱门的驱动用的是液压系统，门的升降都是手工操作的，自动化程度不高。模具在导轨上的运动也是人工操作的，效率低下。同时模具的浸塑环节则存在控制精度不高等缺点。本文从软、硬件两方面阐述了系统的组成和功能，对PLC的原理和优点进行了介绍。
 系统以FX2N系列为核心，利用PLC的强大功能，使上料，加热，浸塑，烘干，冷却一系列工序都自动完成。本文采用PLC作为控制单元，实现对整个控制系统的可靠、协调的控制，以满足该生产线控制系统正常工作的需要。同时，结合触摸屏技术，方便了用户的使用。解决了原先控制精度不高、系统稳定性差等情况。本设计的总体思路是通过精确控制各个电动机的运转时间来控制模具在烘箱中的加热和烘干时间，同样也是控制电动机的运转时间来控制模具在浸塑液中的浸塑时间，提高了产品质量，降低了劳动强度，同时也提高了生产效率。
 
关键词：浸塑  PLC  触摸屏 生产线

Abstract
 This paper introduced soak spraying production processes and requirements, And improved PLC technology in on the basis of the original production line soak spraying, The original system is used in contact with the control relay, the oven door drive is a hydraulic system, the doors of change are manual, not high degree of automation. Die rails in the campaigns is operation, efficiency is low. At the same time Die link’s weaknesses is no higher precision control. From software and hardware of the system expatiated composition and functions of the PLC and introduced the principle and merit
   The core of system is FX2N series, using the power of PLC, make the feeding, heating, soak spraying, drying, cooling a series of working procedure is automated. This paper adopt PLC control unit, and implement the entire control system of reliable and coordinated control, to meet the production line control system needs work。At the same time, with touch-screen technology to convenience the users to use。To solve the original control accuracy is not high, the situation of poor system stability。The design of the overall thinking is the precise control of all the motor running time to control the mold in the oven in the heating and drying time is also time to control the operation of motor control in the mold of the soak spraying, improved product Quality, reduced labor intensity, but also enhanced the production efficiency。
Keywords: soak spraying PLC touch screen product line

目  录
摘    要 I
Abstract II
目  录 III
第一章  绪 论 1
1.1 引言 1
1.2 浸塑生产线技术 2
1.3 PLC技术 3
1.4 小结 7
第二章 基于PLC的的总体方案设计 8
2.1 系统结构介绍 8
2.2 总体方案设计 14
2.3 PLC选型 14
2.4 触摸屏界面设计 16
2.5 主电路设计 17
2.6 小结 19
第三章 烘箱的升降门控制 20
3.1 电器控制原理图 20
3.2 PLC控制程序 20
3.3 小结 21
第四章 链条的运动控制 22
4.1 电器控制原理图 22
4.2 PLC控制程序 22
4.3 小结 23
第五章 PVC浸塑液工作台的升降控制 24
5.1 电器控制原理图 24
5.2 PLC控制程序 24
5.3 小结 26
第六章 总结与展望 27
6.1 本次设计总结 27
6.2 进一步展望 27
参考文献 28
致  谢 29
附件 30

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