【正文】 s 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(jì)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(shí)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(jì)及注射機(jī)初選 ........................................................... 7 選擇分型面 ................................................................................. 7 分型面的設(shè)計(jì)方案 .......................................................... 7 分型面的確定 .................................................................. 8 型腔設(shè)計(jì) ................................................................................... 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(jì)總結(jié)構(gòu) ............................................................ 10 繪制裝配初稿 .................................................................11 修改草稿定方向 ............................................................ 12 注射機(jī)的初選 ........................................................................... 13 注射機(jī)的種類及結(jié)構(gòu) .................................................... 13 注射機(jī)初定 ..................................................................... 13 第 4 章 模具結(jié)構(gòu)設(shè)計(jì) .......................................................................... 15 凸凹模結(jié)構(gòu)設(shè)計(jì) ...................................................................... 15 IV 凸模（型芯）設(shè)計(jì) ........................................................ 15 瓣合凹模（滑塊）設(shè)計(jì) ................................................ 15 澆注系統(tǒng)及排溢系統(tǒng)的結(jié)構(gòu)設(shè)計(jì) .......................................... 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(jì) ...................................................... 19 溫度調(diào)節(jié)對(duì)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(jī)構(gòu)的設(shè)計(jì) ....................................................................... 21 推出距離計(jì)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(jì) .......................................................... 23 導(dǎo)柱導(dǎo)套的布局 ............................................................ 23 導(dǎo)柱導(dǎo)套的結(jié)構(gòu)設(shè)定 .................................................... 24 螺釘和銷釘?shù)牟季? ........................................................ 24 模具與注射機(jī)連接結(jié)構(gòu)設(shè)計(jì) .................................................. 25 定位圈的選擇 ................................................................ 25 動(dòng)模座板孔徑及模具安裝方式 .................................... 25 第 5 章 繪制裝配圖及零件圖 ............................................................. 26 成形零件的尺寸計(jì)算 .............................................................. 26 制件尺寸精度分析 ........................................................ 26 凸凹模對(duì)應(yīng)尺寸計(jì)算 .................................................... 26 模具標(biāo)準(zhǔn)化 ............................................................................... 29 模具標(biāo)準(zhǔn)化意義 ............................................................ 29 模具的標(biāo)準(zhǔn)化程度選擇 ................................................ 29 繪制裝配草圖 ................................................................ 30 相關(guān)數(shù)據(jù)校核 ........................................................................... 31 V 推桿強(qiáng)度校核 ...................................