基于PLC全自动药品包装机系统设计课程设计任务书(可编辑)

机械电子工程专业选修课课程设计任务书设计题目:基于PLC全自动药品包装机系统设计

设计的目的:

(1)进一步提高查阅资料,熟练地使用设计手册、参考资料等方面的能力。

(2)通过设计使学生掌握可编程控制器应用系统设计的步骤和方法,提高可编程控制器应用能力。

设计内容和要求:

全自动药品包装机工艺全过程包括:制袋、充填、封口、日期打印、切断袋膜等,设计采用PLC对药品包装机工艺过程进行控制,实现手动、自动工作方式。

3、设计工作任务和工作量的要求:

(1)画出PLC I/O端口接线图,并按图接线。

(2)编制控制程序,并画出梯形逻辑图。

(3)完成系统调试,实现控制要求。

(4) 完成课程设计说明书。

4、工作计划及进度:

第一周:查阅资料,完成系统硬件设计;

第二周:完成系统梯形图设计;

第三周:完成系统梯形图调试;提交说明书。

此任务书由指导教师下达,具体设计内容由班的同学来完成。

摘要

现代社会对物品的包装要求越来越高,药品也不例外,为使包装出的药品整齐美观并且具有良好的包装质量,要求包装机具有精确的动作、定位精度及较高的生产率和一定的柔性,因此对包装机的控制要求是越来越高。传统的继电器已经不能满足现代药品生产的要求了,所以高效、经济且有一定柔性的新型包装机械是市场迫切需要的。本文着重介绍了一种基于PLC的全自动袋成型药品包装机,对控制系统中硬件设计和软件设计做了详细的介绍。该药品包装机选用的是FX2N-48MR型编程器,使用STL指令编程能够实现手动、单步、单周期、回原点、连续各种不同的工作方式的切换。论文主要内容:1.介绍研制全自动药品包装机的意义,国内外的研究现状以及以前的药品包装存在的问题,本次设计的目的;2.结合袋成型自动包装机的机械结构,分析其工作过程为自动控制做准备;3.设计PLC控制系统的硬件,画外部接线图分配输入输出点,根据输入输出点数选择PLC 型号;4.设计PLC控制系统的软件,编写梯形图程序,并且进行仿真调试。

经过三周的努力终于完成了以上的工作,该药品包装机可以实现简单的控制要求,但控制精度还有待于提高。

关键词:药品包装机;袋成型;PLC;FX2N-48MR

Abstract

Modern society demands on the packaging of goods is more and more high, the drug is not exceptional also, neat appearance for packaging of drugs and has good quality requirements of packaging, packaging machine with precise movements, positioning accuracy and higher productivity and flexibility, is more and more high requirements for control of the

packaging machine. The traditional relay has been unable to meet the requirements of production in modern medicine, so efficient, economical and flexible packaging machinery market are urgently needed. This paper introduces a kind of automatic bag forming packaging machine based on PLC, has made the detailed introduction of the control system's hardware design and software design. The pharmaceutical packaging machine used is FX2N-48MR type programmable device, use the STL command to realize manual, single, single cycle, back to the origin, for different ways of working. The main content of this paper: 1 the development of automatic packaging machine significance, present research status at home and abroad as well as the previous drug packaging problems, the purpose of this design; 2 with the mechanical structure of automatic bag forming packaging machine, analyzes its working process to prepare for the automatic control; 3 the design of PLC control system hardware, painting the external wiring diagram input output distribution, according to the input and output points choose PLC models; 4 the design of PLC control system software, ladder diagram program, and carried on the simulation debugging.

After three weeks of hard work finally completed the above work, the pharmaceutical packaging machine can realize the requirement of simple control, but the control precision is still to be improved.

Keywords: drug packaging machine; bag forming;PLC;FX2N-48MR

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