毕业设计自动分拣控制论文

毕业设计（论文）

题目PLC编程在流水线生产中自动

分拣控制系统中的运用研究

学生姓名吴佳鹏

学号2015309435

专业发电厂及电力系统

班级20153094

指导教师张爽爽

评阅教师张爽爽

完成日期2017年 9月25日

三峡电力职业学院毕业设计（论文）课题任务书

（2017-2018学年）

目录

摘要................................................................ - 1 -前言................................................................. - 2 -

1、PLC的发展与定义.............................................. - 2 -

1.1PLC的产生......................................................... - 2 - 1.2PLC的定义......................................................... - 3 - 1.3PLC的发展......................................................... - 3 -

2、PLC的特点及应用................................................ - 4 -

2.1 PLC的特点........................................................ - 4 - 2.2PLC的分类......................................................... - 5 - 2.3PLC的应用......................................................... - 5 -

3、PLC的结构及编程语言 ........................................... - 6 -

3.1 PLC的硬件结构.................................................... - 6 - 3.2 PLC的等效电路.................................................... - 6 - 3.3 PLC常见的编程语言................................................ - 6 -

4、自动分拣控制的要求及流程...................................... - 6 -

4.1自动分拣工作流程图及操作面板图.................................... - 6 - 4.2全体控制.......................................................... - 6 - 4.3写入程序的要点.................................................... - 7 - 4.4确认程序的要点.................................................... - 7 -

5、I/O分配表....................................................... - 8 -

6、梯形图........................................................... - 9 -

7、指令表.......................................................... - 11 -致谢.............................................................. - 12 - 附录一.............................................................. - 13 - 参考文献 ........................................................... - 15 -

PLC编程在流水线生产中自动分拣控制的运用研究

---PLC编程在升降机控制运用

学生：吴佳鹏

指导老师：张爽爽老师

（三峡电力职业学院）

摘要：为降低物流行业中自动分拣系统的能耗，以及实现分拣系统精确的位移控制，将PLC 技术应用到分拣系统中。在对自动分拣系统的模型机进行功能分解的基础上，采用PLC 并结合变频器，实现了对自动分拣系统包括上料、皮带输送、机械手搬运和分类仓更大大降低了能耗；同时，能储等功能的自动控制。研究结果表明：使用PLC 带动变频器不仅能方便地控制分拣系统电机的启停，够精确控制机械手动作时间和步进电机传动产生的位移。

关键词：PLC ；自动分拣系统；自动控制；变频器中图分类号：TP278；TH39 Abstract:

in order to reduce the energy consumption of the automatic sorting system in the logistics industry and realize the accurate displacement control of the sorting system, the PLC technology is applied to the sorting system. Based on functional decomposition in the model machine of automatic sorting system, the combination of PLC and frequency converter, the realization of automatic sorting system includes feeding, belt conveyor, manipulator handling and sorting bin also greatly reduce the energy consumption; at the same time, can automatically control the storage function. The results show that using PLC to drive the inverter can not only conveniently control the start and stop of the motor of the sorting system, but also control the movement time of the manipulator and the displacement generated by the stepper motor accurately.

Key words:PLC; automatic sorting system; automatic control; frequency converter classification number: TP278; TH39