目 录
摘要 III
ABSTRACT IV
目录 V
1 绪论 1
1.1 本课题的研究内容和意义 1
1.2 国内外的发展概况 1
1.3 本课题应达到的要求 1
2 机械结构的设计 3
2.1 双螺旋给料机的设计 3
2.1.1 已知参数和工作条件 3
2.1.2 螺旋给料机输送量和功率计算 3
2.1.3 螺旋给料机进出料口装置 7
2.1.4 槽体的设计 8
2.1.5 螺旋输送机安装技术条件 9
2.1.6 传动装置的选择 10
2.1.7 螺旋给料机的使用与维护 10
2.2 称重传感器的设计 10
2.2.1 称重装置的结构形式选择 11
2.2.1 结构改进 11
2.2.3 秤体结构 12
2.2.4 称量桶材料选择 12
2.2.5 称体容积选择 12
2.3 缝包装置的选择 13
2.4 储料仓的设计 13
2.5 带式输送机选择 13
2.6 夹袋装置的设计 16
3 螺旋式包装机的PLC设计 18
3.1 PLC简介 18
3.2 PLC设计 18
3.2.1 硬件配置 18
3.2.2 程序的流程图 18
3.2.3 I/O地址及符号地址表 19
3.3.4 程序设计及说明 20
3.2.5 设计心得 25
4 气动控制系统设计 26
4.1 气压控制系统的简单介绍 26
4.2 气压控制的设计 26
4.2.1 设计思路 26
4.2.2 控制控制系统的设计 27
5 结论与展望 29
5.1 结论 29
5.2 不足之处及未来展望 29
致谢 30
参考文献 31
摘 要
包装是产品进入流通领域的必要条件，而实现包装的主要手段是包装机械。简单来说，包装机就是把产品包装起来的机器，起着保护，美观的作用。包装机主要分为两个方面，一是流水线式的整体生产包装，二是产品外围包装设备随着时代的发展，科技的进步，包装机械在包装领域中正起着越来越大的作用。我国包装机行业起步于20世纪70年代，在80年代末和90代中期的到了迅速发展。已经成为机械行业中的10大行业之一，无论产量，还是品种上，都取得了令人瞩目的成就，为我国的包装工业的快速发张提供了有力的保障目前。目前，我国已成为世界包装机械工业生产和消费十大国之一。新型包装机往往是机、电、气、一体化的设备.充分利用信息产品的最新成果，采用气动执行机构、伺服电机驱动等分离传动技术，可使整机的传动链大大缩短，结构大为化简，工作精度和速度大大提高。机电一体化的实质就是从系统观点出发，运用过程控制原理，将机械、电子与信息、检测等有关技术进行有机组合，实现整体最佳化。
本课题研究的螺旋式自动定量包装机为净重式电子秤，由双螺旋给料机、电子称、下料斗、袋夹、输送机、缝包系统、控制系统（包括PLC、称重控制仪、重量传感器等）组成，通过智能电控系统控制，自动完成给料、称量、夹袋、放料等工序。用于纯碱、面粉、淀粉、饲料以及食品、化工、轻工、建材等行业粉状物料的自动定量、计量、包装。
关键词：螺旋式给料机；称重传感器；气动；PLC
Abstract
Packaging is necessary for products entering the circulation field,and packaging are the main means of packaging machinery.Simply put the packaging machine is the production packaging up the machine,plays a protection role of the beautiful. The packaging machine in two main aeras,the overall production pipeline packaging products periphery packaging equipment.With the development of the times,the progress of technology ,packaging machinery is playing a more and more greater role in the packaging area.Our country packs the machanical profession start in the 20th century 70's,and the 90's intermediate stages obtains the rapid development in the end of the 80's. Has become in the mechanical industry one of 10 big professions,regardless of is the output,in the variety,has all obtained the amazing achiecement,packed the industry for our country the fast development to provide the powerful safeguard. At present,our country has became the world packing mechanical industrial production and expends one of great nations.The new packing machinery often is machine ,the electricity,the gas integration equipment.The full use information product newest achievement,user air operated separation transmission technologies and so on implementing agency,servo motor-drive ,may cause the complete machine the transmission chain to reduce greatly the structure is greatly the simplification,the work precision and the speed enhances greatly.The essence of the electromechanical integration is from the system point of view，By using the principle of the process control，Machinery and electronics and information detection and related technology of organic combination, realize the whole optimization.
The topic research the spiral automatic quantitative packaging machine is net weight type electronic scale,by double spiral feeder hopper FengBao bag clip conveyor system under the electronic scale control system,(including weight sensor PLC weighing controller,etc),through the electric control system of intelligent control,automatically finish feeding weighing clip bag feeding process.Feed for soda ash flour starch and food chemical light industry building materials industry powder automatic quantitative measurement packaging materials.
Key words:The spiral feeder; Weighing sensor; Pneumatic; The PLC
