【正文】 I 滾輪注射模具設(shè)計 摘 要 本設(shè)計是關(guān)于塑料制件的 模具設(shè)計。綜合材料成型的各種工藝方式 ，本課題設(shè)置為注射模具設(shè)計。其中包括注射模的成形零件、工作零件、 各種定位機構(gòu)及導(dǎo)向 結(jié)構(gòu)的 設(shè)計等。 隨著塑料的應(yīng)用領(lǐng)域擴大化，塑料零件 的注射模 具 已成為 工廠推崇的產(chǎn)品 之一 。產(chǎn)品的壽命及性能也是 廠商的重要考慮因素。模具 零件 的標(biāo)準(zhǔn)化 使用頻率 越來越高，及標(biāo)準(zhǔn)模具 的選用越來越多。模具標(biāo)準(zhǔn)化程度 在一方面 體現(xiàn)了社會商品的交換程度。 這也是本次設(shè)計重點考察因素之一。 塑料的性能，如此處 ABS 的應(yīng)用，在一定程度上反應(yīng)塑料的適用范圍。本設(shè)計的制 品是滾輪。 對滾輪結(jié)構(gòu)的合理分析是設(shè)計模具的基礎(chǔ)?？茖W(xué)合理的選擇有利的分型面及成型方案是 本設(shè)計應(yīng)該納入的核心 問題 。此外，設(shè)計者的獨特設(shè)計風(fēng)格為以后設(shè)計提供參考。 設(shè)計參考一些前輩們的 設(shè)計理念以及相關(guān)資料的數(shù)據(jù)。互聯(lián)網(wǎng)及書本是本設(shè)計重要的參考資料。老師的指正及 學(xué)生們的討論讓設(shè)計漸漸完善。 模具設(shè)計的技術(shù) 交流 是模具設(shè)計空間提升的重要方式。 經(jīng)濟全球化離不開技術(shù)交流。 關(guān)鍵詞： 模具 ， 塑料 ， 滾輪 ， 標(biāo)準(zhǔn)化 ， 技術(shù)交流 II Trolley Wheel Plastic Mold Design ABSTRACT This subject is mainly about mold design, which is used to produce products made in plastic. Compared with many kinds of forming technology, this subject is aimed at injection mold design. This design includes these topics, like forming parts, working parts, all kinds of detent mechanism and positioning structure design, and so on. With the expansion of application domain, injection mold to produce plastic goods has bee one of more and more popular products in factories. The age and function of mold is some of important factors. The application of mold standardization appears in factories frequently, and the selection of standard mold is more and more considered. The level of mold standardization implies the frequency about the exchange of social modities. This topic is also one of significant considerations. The application domain of plastic, like the application of ABS in this subject, responds to the function of plastic in some areas. The goods in this subject are trolley wheel. The reasonable analysis is the base of the mold design. How to select reasonable joint face and forming technology should take into account in the key topic of the design. Besides, the special style of designer can offer some reference in the later design. This design consults many design ideas of predecessors and some data about the subject. Inter and books are important reference material. The design is being more perfect under the help of teachers and the discussion between students. The exchange of technology experience is an important way to improve the mold design level. Economic globalism can never realize without the exchange of technology. KEY WORDS: mold， plastic， trolley wheel， standardization， exchange of technology III 目 錄 前 言 ....................................................................................................... 1 第 1 章 前期準(zhǔn)備 .................................................................................... 2 了解設(shè)計任務(wù)書 ......................................................................... 2 接受任務(wù)書 ....................................................................... 2 任務(wù)書分析 ....................................................................... 2 資料準(zhǔn)備及時間安排 ...................................................... 2 第 2 章 分析工藝方案的制定依據(jù) ....................................................... 4 制件應(yīng)用領(lǐng)域 ............................................................................. 4 滾輪的使用環(huán)境 .............................................................. 4 制件工藝性分析 ......................................................................... 4 材料分析 ........................................................................... 4 結(jié)構(gòu)分析 ........................................................................... 5 第 3 章 核心設(shè)計及注射機初選 ........................................................... 7 選擇分型面 ................................................................................. 7 分型面的設(shè)計方案 .......................................................... 7 分型面的確定 .................................................................. 8 型腔設(shè)計 ................................................................................... 10 型腔的數(shù)目 ..................................................................... 10 型腔的布置 ..................................................................... 10 裝配草案初定 ........................................................................... 10 分析設(shè)計總結(jié)構(gòu) ............................................................ 10 繪制裝配初稿 .................................................................11 修改草稿定方向 ............................................................ 12 注射機的初選 ........................................................................... 13 注射機的種類及結(jié)構(gòu) .................................................... 13 注射機初定 ..................................................................... 13 第 4 章 模具結(jié)構(gòu)設(shè)計 .......................................................................... 15 凸凹模結(jié)構(gòu)設(shè)計 ...................................................................... 15 IV 凸模（型芯）設(shè)計 ........................................................ 15 瓣合凹模（滑塊）設(shè)計 ................................................ 15 澆注系統(tǒng)及排溢系統(tǒng)的結(jié)構(gòu)設(shè)計 .......................................... 16 流道的設(shè)定 ..................................................................... 16 澆口的設(shè)定 ..................................................................... 17 冷料穴的設(shè)定 ................................................................ 18 排氣槽的設(shè)定 ................................................................ 19 溫度調(diào)節(jié)系統(tǒng)的結(jié)構(gòu)設(shè)計 ...................................................... 19 溫度調(diào)節(jié)對生產(chǎn)率的影響 ............................................ 19 冷卻位置的選擇 ............................................................ 20 冷卻水道的布局 ............................................................ 20 脫模機構(gòu)的設(shè)計 ....................................................................... 21 推出距離計算 ................................................................ 21 推出結(jié)構(gòu)的設(shè)定 ............................................................ 22 導(dǎo)向和定位的結(jié)構(gòu)設(shè)計 .......................................................... 23 導(dǎo)柱導(dǎo)套的布局 .................................................