机械5

咖啡粉枕式包装机总体设计及横封切断装置设计 摘要：随着包装工业的不断发展，产品包装在产品生产、产品开发和产品销售过程中所起着越来越重要的作用。 本设计通过分析粒料包装机的总体设计方案及对横封切断装置的部件原理设计,确定主要装置(供送、下料、成型、牵引、封切、传动)之间的相互配合关系。分析了机构、传动系统、控制系统的设计原理,该设计解决了粒料快速、自动包装等问题。为实现包装机的预期功能,对其机械传动系统进行设计。确定传动路线,并给出其传动系统结构简图。在分析横封切断机构功能的基础上,研究出一种新型凸轮滑杆式间歇横封机构,其特点是运动中力系处于封闭平衡状态,且结构简单,加工方便,易于调试安装。根据多功能枕型包装机横封切断工艺要求，选用凸轮机构实现其横封轴不等速传动，并对此传动机理进行了运动分析，推导出了通用计算公式。 关键词：枕式包装机;运动分析;结构特点;横封切断装置 Desig
n for Pillow-style Packagi
ng Machi
ne of Coffee a
nd Horizo
ntal Cutti
ng Fixtures Abstract: As the developi
ng of the packi
ng i
ndustry, the tech
nique of product packi
ng has played a great role i
n the products' productio
n,developme
nt a
nd selli
ng. By a
nalyzi
ng the desig
n schema a
nd desig
n pri
nciple of the horizo
ntal cutti
ng fixtures for packagi
ng grai
ny material was i
ntroduced,co
nformed work i
n relatio
ns of mai
n fixtures(feedi
ng, formi
ng, retractor, seali
ng,drivi
ng) through a
nalysis of packagi
ng machi
ne overall pla
n .The mecha
nism, drivi
ng system a
nd co
ntrol system were a
nalyzed. The problems of fast a
nd automatically packagi
ng grai
ny material was solved with this equipme
nt. Based o
n the requireme
nts for tra
nsmissio
n system of ha
ndy
needle packi
ng machi
ne , a scheme desig
n for tra
nsmissio
n system was completed i
n order to accomplish the expecta
nt fu
nctio
n of the mecha
nism. The tra
nsmissio
n route was determi
ned. The sketch was offered. Based o
n the requireme
nts for tra
nsmissio
n system of horizo
ntal cutti
ng fixtures. It co
nducts a
n a
nalys is a
nd compariso
n of mecha
nism about i
ntermitte
nt traverse seal, a
nd the focus poi
nt is to study mecha
nism about bri
ng forth
new idea of i
nterm- itte
nt trarerse seal.Accordi
ng to the tech
nology require of cross seali
ng axle of pillow multi-fu
nctio
n packagi
ng machi
ne,the cam is used to realize vary velocity motio
n,a
nd its ki
nematic a
nalysis is performed,the ge
neral caculati
ng formula is deduced. Key word: Pillow-style packagi
ng machi
ne; Ki
nematic a
nalysis; Structural characteristics; Horizo
ntal cutti
ng fixtures 目录 1前言3 2咖啡粉枕式包装机总体设计4 2.1总体方案论证4 2.1.1功能与应用范围4 2.1.2工艺分析4 2.1.3总体布局5 2.1.4工作循环过程7 2.2总体传动系统7 2.2.1传动系统的组成7 3咖啡粉枕式包装机横封切断装置设计7 3.1基于功能原理与功能分析方案设计7 3.2结构设计8 3.3机构分析9 3.3.1受力分析9 3.3.2运动分析10 3.3.3工艺分析10 3.5其他设计计算13 3.5.1分析机构运动时间13 3.5.2分析机构移动位移13 3.5.3分析机构调节13 3.5.4压簧的设计与计算13 4结论17 参考文献18 致谢19 附录20