摘要：随着人民生活水平的提高，各种纸张，特别是中高端用纸的需求也逐年升高。目前造纸行业中提升纸张质量最常用的方式是通过在纸张表面施涂一层胶液来提升其抗拒液体扩散和渗透的能力，从而提升纸张各项性能，这种方式称为施胶。而施涂机便是进行纸张施胶的专用机械，在造纸行业中扮演者越来越重要的角色。50040

目前国内的施涂机在设计上与国外产品有着较大差距，施涂机施胶质量差、施胶不均，胶料浪费严重，造成生产效率低下，成本偏高的问题，这也造成了现在国内纸品质量普遍比国外产品低一到两个档次。本次设计，目的便是通过改善现有的施涂机设计，并将近些年的新技术应用其中，从而较好的解决或者提升施胶水平。首先介绍施涂机的背景和发展，说明了其工作原理，分析施涂机设计中的重点难点并确定其解决方案，通过对比以前的各种设计，确定了主体结构，通过计算，校核确定了施涂机重要组成部件：辊筒的各项指标

毕业论文关键词：造纸；表面施胶；施涂机

Overall Design of Echelon Type Sizing Machine

Abstract:With the remarkable improvement of people’s living standard,different kind of paper,especially in high-end paper demand is also increasing.nowadays,in Paper Industry,zhe common way to improve paper quality is to size a layer of glue on the paper to improve the ability of resisting liquid diffusion and osmosis,in order to improve the different performance,this way is called sizing.and the sizing machine is the special machinery for paper sizing,plays an increasingly important role in Paper Industry.

Nowadays,there is a huge gap between china and other country in sizing machine designing.sizing quality unqualified, uneven sizing,glues are serious waste,not only causing the low working efficient,and the high cost.But also the quality of domestic paper products is generally lower than the foreign products one or two grades.This design,aims to improve the existing design of sizing machine,and the application of new technology in recent years,in order to solve or improve sizing standards. This article first introduced the sizingmachine’s background and development, introduced the working principle of it, analyzed important and difficult design, determined the program,demonstrated the host structure by comparing the previous design,and demonstrated the important parts in sizing machine:The roller’s index by calculation and check. 

key words:  papermaking;  surface sizing;  sizing machine

目  录

1  绪论  1

1.1 课题的背景 1

1.2 课题的目的与意义 2

2  施涂机的工作原理 3

3  设计的关键与难点 4  3.1  确定斜列式施涂机的结构4

3.2  差动螺旋机构的运动分析和几何参数4

3.3  转移辊的材料选择4

3.4  胶液的保存与多余胶液的回收5

3.5  轴承装置的选择和设计5

3.6  电动机的选择5

4  方案论证6

  4.1  表面轴辊施胶各种方式比较6

4.1.1  水平轴辊式表面施胶6

4.1.2  垂直轴辊式表面施胶6

4.1.3  门辊式表面施胶7

4.1.4  斜列式（倾斜轴辊式）表面施胶7

4.2  压辊设计方案的确定8

4.3  转移辊设计9

4.4  设计的技术要求10

5  主要零部件的设计计算11

5.1  转轴的材料选择11

5.2  转轴的设计计算11

5.2.1  施胶机转轴的动力参数计算11

5.2.2  电机的选择12

5.2.3  施涂机差动螺旋机构参数计算15