字?jǐn)?shù)：23127
頁(yè)碼：52
內(nèi)包含包裝機(jī).dwg圖以及電路圖.dwg

摘  要
　　　    
　　　本文主要介紹了一種為小定量包裝洗衣粉生產(chǎn)企業(yè)設(shè)計(jì)的自動(dòng)稱重式充填設(shè)備的研制過(guò)程，分析了稱重式充填設(shè)備的國(guó)內(nèi)外現(xiàn)狀，探討了產(chǎn)品的市場(chǎng)開發(fā)背景，對(duì)設(shè)備的基本原理、結(jié)構(gòu)設(shè)計(jì)以及各個(gè)子系統(tǒng)如供送系統(tǒng)、稱重系統(tǒng)、處理控制系統(tǒng)的主要功能都作了詳細(xì)介紹，論述了設(shè)備開發(fā)過(guò)程中采用的一些關(guān)鍵技術(shù)。
　　　本文研究成果及主要工作包括:首先，完成了通過(guò)對(duì)比和分析完成了對(duì)各個(gè)子系統(tǒng)環(huán)節(jié)的選擇與設(shè)計(jì)的基本思想和開發(fā)思路，單片機(jī)應(yīng)用系統(tǒng)的開發(fā)，進(jìn)行了硬件設(shè)計(jì)和軟件編程:其次，對(duì)設(shè)備進(jìn)行了準(zhǔn)確度等級(jí)的檢測(cè)實(shí)驗(yàn)和商品實(shí)例分析;最后，高速動(dòng)態(tài)稱重的數(shù)字傳感器精度較高，抗干擾能力強(qiáng)，響應(yīng)速度快，值得推廣與應(yīng)用。

關(guān)鍵詞：稱重；精度；傳感器；單片機(jī)

 ABSTRACT
　　
　

  　　This article presents a washing powder for small quantity packaging manufacturer designs  automatic weighing filling equipment development process, analysis of the filling equipment weighing the status quo at home and abroad to explore the product market development background, equipment, basic principle, structure design, and various subsystems, such as for the delivery systems, weighing systems, process control system's main features are described in detail, discusses the equipment used in the development process a number of key technologies.   In this paper, results and main functions include: first, completed by comparing and analyzing the completion of the various sub-sectors of the choice and design of the basic idea and develop ideas, the development of microcomputer application systems to carry out the hardware design and software programming : Secondly, the right equipment had accuracy levels of detection experiments and commodity case analysis; and finally, high-speed dynamic weighing of the digital sensor with high precision and strong anti-jamming capability, fast response, worthy of promotion and application.

Keyword: Weighting；Accuracy；Sensors；SCM

                                                                                                               
 目   錄

第1章 引言 ………………………………………………………………1
1.1 包裝機(jī)械化的重要意義……………………………………………………2
1.2 包裝機(jī)械的組成與分類……………………………………………………3
第 2 章  總體方案設(shè)計(jì)………………………………………………….5
2.1 包裝機(jī)的設(shè)計(jì)要求………………………………………………………....5
2.2 攪拌器的選擇與比較………………………………………………………6
2.3  稱量系統(tǒng)選擇與設(shè)計(jì)……………………………………………………..7
2.3.1  定容法……………………………………………………………..7
2.3.2  稱重法…………………………………………………………......9
2.4 熱封機(jī)的選擇………………………………………………………………9
2.4.1  熱封機(jī)的原理…………………………………………………......9
2.4.2  熱封材料…………………………………………………………12
2.5  包裝機(jī)的總體布局………………………………………………………12
第3章  包裝機(jī)的重要的零件設(shè)計(jì)……………………………………..15
　3.1鍵的選擇與校核……………………………………………………..........15
3.2  軸承的選擇與校核………………………………………………………15
3.3  液壓缸的設(shè)計(jì)與計(jì)算……………………………………………………16
3.3.1  液壓缸的設(shè)計(jì)……………………………………………………16
3.3.2  液壓系統(tǒng)的設(shè)計(jì)…………………………………………………19
3.3.3  液壓元件的選擇…………………………………………………21
第 4 章  控制系統(tǒng)設(shè)計(jì)…………………………………………………25
4.1  傳感器的選擇……………………………………………………………25
4.1.1  磁性開關(guān)的選擇…………………………………………………25
4.1.2  料位檢測(cè)器的選擇與控制………………………………………26
4.1.3  光電開關(guān)的選擇與控制………………………………………….30
4.1.4  荷重傳感器的選擇……………………………………………….31
4.2  硬件設(shè)計(jì)………………………………………………………………….32
4.3 軟件設(shè)計(jì)……………………………………………………………………33
第 5 章  控制電路設(shè)計(jì)………………………………………………….34
5.1  核心單元電路…………………………………………………………….34
5.1.1 重量信號(hào)檢測(cè)電路…………………………………………………35
5.1.2  A/D轉(zhuǎn)換電路……………………………………………………..35
5.1.3  LCD顯示電路…………………………………………………….36
5.2  系統(tǒng)程序設(shè)計(jì)……………………………………………………….......36
5.2.1  稱重系統(tǒng)主程序…………………………...……………………37
5.2.2  LCD顯示模塊程序………………………………………………39
5.3  系統(tǒng)的可靠性設(shè)計(jì)和抗干擾設(shè)計(jì)………………………………………42
參考文獻(xiàn)…………………………………………………………………..44
致謝 ……………………………………