摘 要

水溶性塑料薄膜（以下簡稱水溶膜）是一種新穎的綠色包裝材料。它的主要原料是聚乙烯醇及淀粉，能溶于水，降解成無毒無公害的最終產(chǎn)物CO2和H2O。它的應(yīng)用也較為廣泛，在工業(yè)、農(nóng)業(yè)及人們?nèi)粘Ｉ钪卸加袕V泛的運用，且隨著人們環(huán)保意識的不斷增強，對水溶膜的需求量也必將持續(xù)增長。
本文主要介紹400型水溶膜流研成型系統(tǒng)的設(shè)計方法，該系統(tǒng)的主要工作原理是：先將原料在一定條件下制成水溶性膠液，然后將膠液流研到鏡面不銹鋼帶（以下簡稱鋼帶）上，用刮刀將膠液均勻刮開，膠液刮層隨鋼帶轉(zhuǎn)動進入烘道烘干，最后剝離成成品膜。烘道的熱源來至布置于系統(tǒng)頂部的熱供送箱和烘道內(nèi)置的紅外電熱管，其內(nèi)的溫度是可控的。刮刀固定于鋼帶的上部，它可以在一定范圍內(nèi)上下調(diào)動，通過控制它與鋼帶間的縫隙，來達到控制水溶膜厚度的目的。鋼帶被焊接成環(huán)形，安裝在一對大滾筒上，位于生產(chǎn)線后端的為主動滾筒，前端的滾筒主要起改向作用，稱改向滾筒，剛帶傳動非常類似于平帶傳動，但本系統(tǒng)中的鋼帶既是水溶膜成膜的載體，又是動力轉(zhuǎn)動裝置，這一環(huán)節(jié)的設(shè)計十分重要。

關(guān)鍵詞：水溶膜，烘道，鋼帶傳動，滾筒，刮刀

ABSTRACT

Water-soluble plastic packaging films (hereinafter referred to water-soluble film) is a new green packaging materials, its main raw material is polyvinyl alcohol and starch, can dissolve in water, degradation of non-toxic pollution-free into the final product of CO2 and H2O. It's also the wider application of the workers, farmers and people in daily life have a wide range of use, and with the enhancement of environmental awareness among the people, the demand for water soluble film will also continue to grow. In this paper, 400 water-soluble film-forming system of research methods, the system's main principle is: first of raw materials under certain conditions, into water-soluble glue, and then glue to flow to the inquiry with stainless steel mirror ( Hereinafter referred to strip), the scraper will Smear
glue evenly, with the strip into the rotation, bake film drying, peeling into the final finished film. Hung Road to the heat source in the system to the layout at the top of the heat and bake for sending me the built-in infrared Electric Road tube, the temperature is controllable. Scraper fixed in the upper strip, it can within a certain range from top to bottom mobilization, through its control of the gap between the strip and to achieve water-soluble film thickness control purposes. Strip was welded into a ring, installed in a large drum, the back-end to take the initiative to drum, drum major from the front of the bend, much like a belt-drive, water-soluble film is a film strip the carrier, is the driving force Moment of devices, this part of the design is very important.

Keywords: Water-soluble film, Hung Road, belt drive, roller, scraper

目 錄

第1章 緒論 1
1.1 水溶膜的簡介...........................1
1.2 水溶膜的現(xiàn)狀及展望..................1
1.3 水溶膜的主要制備方法...............3
第2章 系統(tǒng)總體設(shè)計........................2
2.1 烘道的設(shè)計...............................2
2.1.1 主體結(jié)構(gòu)材料的選擇................3
2.1.2 整體尺寸和布局 ....................3
2.1.3 供熱系統(tǒng)的設(shè)計 ....................5
2.2 鋼帶的設(shè)計................................6
2.2.1 鋼帶性能的要求.....................6
2.2.2 鋼帶型號及尺寸的選擇............7
第3章 傳動裝置的設(shè)計及計算..............8
3.1 鋼帶傳動...................................8
3.1.1 鋼帶傳動的設(shè)計計算..................8
3.1.2 電動機及減速機的選用..............13
3.1.3 傳動滾筒和托輥的設(shè)計與選用.....14
3.1.4 軸承的選用與校核 ...................21
3.2 鏈傳動 ......................................23
3.2.1 鏈條的設(shè)計..............................23
3.2.2 鏈輪的設(shè)計..............................24
3.2.3 鏈傳動的受力分析.....................27
第4章 主要附屬裝置的設(shè)計與選用........28
4.1 刮刀設(shè)計...................................28
4.2 刀架的設(shè)計................................29
4.3 調(diào)偏裝置的設(shè)計..........................30
4.4 熱風回流裝置的設(shè)計....................31
結(jié)論................................................32
參考文獻..........................................33
致謝................................................34
附錄Ⅰ.............................................35