生產線自動裝箱的PLC控制

電氣自動化論文編號:ZD253 論文字數:10740,頁數:21

目    錄
摘 要 I
Abstract II

第1章  緒論 1
1.1 課題背景 1
1.2 生產線自動化的發展概況 2
1.2.1 國內生產線自動化發展概況 2
1.2.2 國外生產線自動化發展概況 2
1.3 本文主要研究內容 3
1.3.1 設計任務書 3
1.3.2 主要解決的問題 4
第2章 控制系統的設計 5
2.1 方案論證 5
2.1.1 采用傳統繼電—接觸器電氣控制系統 5
2.1.2 采用PLC可編程序控制器控制系統 5
2.1.3 方案比較與選擇 5
2.2 PLC的硬件結構及工作原理 6
2.2.1 PLC控制系統組成 6
2.2.2 PLC的工作過程 7
2.3 控制系統構成圖和工作流程 7
2.3.1 控制系統構成圖 7
2.3.2 控制系統工作流程圖 7
2.4 控制系統硬件設計 8
2.5 控制系統軟件設計 11
2.5.1 控制系統邏輯分析 11
2.5.2 控制系統程序設計 12
2.6 系統程序調試及結果 15

結論 16
參考文獻 17
致謝 18

摘 要
   
 在現代化的工業生產中常常需要對產品進行計數和包裝，如果這些繁雜的工作由人工完成的話不但效率低，而且勞動強度大，不適合現代化的生產需要。本文主要對基于生產線自動裝箱的PLC控制系統進行了詳細的研究。該系統有兩個傳送帶，即包裝箱傳送帶和產品傳送帶。包裝箱傳送帶用來傳送產品包裝箱，其功能是把已經裝滿的包裝箱運走，并用一只空箱來代替。為使空箱恰好對準產品傳送帶的末端，使產品剛好落入包裝箱中，在包裝箱傳送帶的中間裝一光電傳感器，用以檢測包裝箱是否到位。產品傳送帶將產品從生產車間傳送到包裝箱，當某一產品被送到傳送帶的末端，會自動落入包裝箱內，并由另一傳感器轉換成計數脈沖。本控制系統具有精度高、成本低、抗干擾能力強、故障率低、操作維護簡單等特點，具有良好的應用價值。
 
關鍵詞  可編程控制器；自動裝箱控制系統；傳送帶控制
Abstract
   
 Often need to carry out counting and package on the product in the commercial run being modernized, not only the inefficient, moreover intensity of labour working from the words that the manpower accomplishes if these are complicated and overloaded is big , the childbirth being unfit to be modernized needs. Detailed research the main body of a book has been carried out on the PLC navar enchasing owing to production line automation mainly. Be system's turn to have two conveyer belts , be package box conveyer belt and product conveyer belt. The package box conveyer belt is used to deliver the product package box , whose function is that the package box luck already filling to full is leaked , is uses one to replace to come empty space box and. End being to make the empty space box aim at the product conveyer belt fitly, just the drop-in package box is hit by the messenger product, before package box conveyer belt centre install one photoelectricity sensor, in order to check if package box arrive at a place. And the product conveyer belt transmits a product from producing a workshop to package box , pawn some one products deliver to the conveyer belt end , the meeting automation drop-in package box inner, change from another sensor becoming counting pulse. Navar has accuracy height , the low , anti-interference ability of cost is strong , the malfunction leads a characteristic low , operation upkeep waits for simplely, have fine application value.
 
Key words  programming controller  Automation encasement navar  The conveyer belt is controlled