【正文】 ous books. In the design process of analyzing the characteristics of the mask bearing, and describes the characteristics of ABS material molding process, the molding process, mold process. At the same time, the mold structure analysis and calculation, learn how to design a plete mold structure. Through this design, can be more adept at using AutoCAD, UG and other software for moldaided design, puter graphics to improve their skills. The graduation project for the future fully engaged in mold design industry has laid a solid foundation. The main design is a mask bearing injection mold design, with emphasis on the principles of plastic parts molding, material selection and injection techniques for analysis. Prearranged through the task of the instructor, I first analyze the mission statement of understanding, and access to a lot of books, manuals and documentation, to mold a certain amount of understanding and clear their task to be acplished. Through the understanding of products, to meet the highvolume products, highprecision, plex shape, etc., I am first and foremost to spend time to determine the required molding solutions, selection and processing of products, subsurface, cavity The number and arrangement, forming part of the structure and the like. Since the actual production for the purpose of covering the main system design including injection mold injection machine, pouring system, exhaust system, cooling system, the top of the system, the guide system. For going to the actual production of the mold, there are many things that we consider, and I asked my instructor positive about reality mold factory production process and the problems you may encounter. Design, try using a slider and slider bination oblique lateral pulling mechanism, reducing the plexity of the mold. Reference design injection mold design experience in the past, bined with the practical requirements of products, by simplifying the design of the structure, optimize the performance of each system, to achieve maximize mold beautiful, practical, long service life, short production cycles and good economic performance. Key words： plastic injection molding,slider,puter graphics 目 錄 引言 ...................................................................... 1 1 緒論 .................................................................... 2 模具 概述 .......................................................... 2 模具種類 ..................................................... 2 注射模具概述 ................................................. 2 課題的目的及意義 .................................................. 3 課題的主要內(nèi)容和工作方法 ........................................... 3 解決的重點(diǎn)問(wèn)題與創(chuàng)新 ............................................... 4 2 塑料制品分析 ........................................................... 5 明確制品設(shè)計(jì)要求 .................................................. 5 明確制品批量 ...................................................... 6 材料選擇及性能 .................................................... 6 計(jì)算制品的體積和質(zhì)量 .............................................. 7 3 注射機(jī)及成型方案的確 定 .................................................. 8 注射機(jī)的確定 ...................................................... 8 成型的原理 ........................................................ 9 4 型腔數(shù)的確定及分型面的選擇 ............................................. 10 型腔數(shù)的確定 ..................................................... 10 分型面的選擇 ..................................................... 10 確定型腔的排列方式 ................................................ 10 標(biāo)準(zhǔn)模架的選用 .................................................... 11 5 成型零部件的設(shè)計(jì)與計(jì)算 ................................................. 13 凸模設(shè)計(jì) ......................................................... 13 凹模的設(shè)計(jì) ....................................................... 13 成型零件工作尺寸的計(jì)算 ........................................... 14 6 澆注系統(tǒng)的設(shè)計(jì) ......................................................... 16 澆注系統(tǒng)設(shè)計(jì)的原則 ................................................ 16 主流道設(shè)計(jì) ........................................................ 16 7 排氣與冷卻系統(tǒng)的設(shè)計(jì) .................................................. 18 冷卻系統(tǒng)設(shè)計(jì)的原則 ............................................... 18 冷卻水路的計(jì)算 ................................................... 18 排氣系統(tǒng)的設(shè)計(jì) ................................................... 21 8 頂出與抽芯機(jī)構(gòu)的設(shè)計(jì) ................................................... 23 推桿復(fù)位裝置 ..................................................... 24 滑塊抽芯機(jī)構(gòu)的選擇 ............................................... 25 滑塊脫模 結(jié)構(gòu)設(shè)計(jì) ............................................ 25 滑塊脫模 機(jī)構(gòu)運(yùn)動(dòng)分析、強(qiáng)度設(shè)計(jì) .............................. 28 9 合模導(dǎo)向機(jī)構(gòu)的設(shè)計(jì) ..................................................... 32 導(dǎo)向、定位機(jī)構(gòu)的主要功能 ......................................... 32 導(dǎo)向機(jī)構(gòu)的設(shè)計(jì) ................................................... 32 導(dǎo)柱的設(shè)計(jì) .................................................. 32 導(dǎo)套的設(shè)計(jì) .................................................. 33 10 注射機(jī)與模具各參數(shù)的校核 .............................................. 34 工藝參數(shù)的校核 .................................................. 34 模具安裝尺寸的校核 .............................................. 35 開(kāi)模行程的校核 .................................................. 38 11 模流分析 .............................................................. 39 注射成型常見(jiàn)缺陷與產(chǎn)生原因 ....................................... 39 澆口位置分析 ..................................................... 40 充填分析 ......................................................... 41 壓力分析 ......................................................... 42 冷卻分析 ......................................................... 42 結(jié)論 ..................................................................... 44 致謝 ..................................................................... 45 參考文獻(xiàn) ...........................