【正文】 額定注射量（ cm179。 (3)注射速率。這些參數(shù)是設(shè)計(jì)、制造、購(gòu)買(mǎi)和使用注塑機(jī)的主要依據(jù)： (1)公稱(chēng)注塑量。 零件體積及質(zhì)量估算 根據(jù) UG，測(cè)量出單個(gè)塑件的體積。 3）塑料的加熱溫度對(duì)塑件的質(zhì)量影響較大，溫度過(guò)高易分解（分解溫度為250℃）。 圖 電瓶車(chē)充電器外殼立體圖 材料性能分析 ABS 為熱塑性塑料，密度 ～ ，抗拉強(qiáng)度 30～ 50MPa，抗彎強(qiáng)度 41～ 79MPa，拉伸彈性模量 1587～ 2277MPa，彎曲彈性模量 1380～ 2690MPa，收縮率 %～ %，常用收縮率為 %。功能設(shè)計(jì)時(shí)要求塑件應(yīng)具有滿足使用目的功能，并達(dá)到一定的技術(shù)指畢 業(yè) 設(shè) 計(jì) 說(shuō) 明 書(shū) 5 標(biāo)。 關(guān)鍵詞： 充電器外殼，注塑模，澆注系統(tǒng)，脫模機(jī)構(gòu) ABSTRACT This topic mainly explain the injection mold design process about electric car charger shell. First ,the author analyzed the technological characteristics of charger shell parts, of which mainly including it’s material, forming characteristics and 畢 業(yè) 設(shè) 計(jì) 說(shuō) 明 書(shū) 2 conditions, the process of the structure, what is more , the forming equipment and the parting line are selected, the number of cavities is determined. this topic laid on emphasis on gating system, cooling system,Molding parts, Steering mechanism, moulding mechanism and spacer parting addition the standard mould bases and Mould materials are the technological parameters of the forming equipment is checked. Finally, problems that may emerge during the mold installation process are analysed and the appropriate solutions are provided. Plate mold is used on the design of charger shell, there are one cavities in this mould,finally a push rod is used to push off the charger shells. Keywords: charger shell， Injection mold， Gating system， Demoulding mechanism 目 錄 第 1 章 引言 ........................................................................................................ 4 第 2 章 電動(dòng)車(chē)充電器外殼工藝性分析 ............................................................ 5 畢 業(yè) 設(shè) 計(jì) 說(shuō) 明 書(shū) 3 塑件分析 ............................................................................................... 5 材料性能分析 ....................................................................................... 5 成型性能及條件 ................................................................................... 6 結(jié)構(gòu)工藝性分析 ................................................................................... 7 零件體積及質(zhì)量估算 ........................................................................... 7 初選注塑機(jī) ........................................................................................... 7 第 3 章 模具的結(jié)構(gòu)形式 .................................................................................... 8 模具基本結(jié)構(gòu)的確定 ........................................................................... 8 型腔數(shù)量的確定 ................................................................................... 9 塑件分型面位置的確定 ....................................................................... 9 第 4 章 注塑模澆注系統(tǒng)設(shè)計(jì) .......................................................................... 10 主流道的設(shè)計(jì) ..................................................................................... 10 分流道設(shè)計(jì) ......................................................................................... 13 澆口設(shè)計(jì) ............................................................................................. 14 冷料井與拉料桿設(shè)計(jì) ......................................................................... 16 第 5 章 注塑模具成型零件結(jié)構(gòu)設(shè)計(jì)與計(jì)算 .................................................. 17 成型零件結(jié)構(gòu)設(shè)計(jì) ............................................................................. 17 成型零件工作尺寸計(jì)算 ..................................................................... 17 型腔壁厚計(jì)算 ..................................................................................... 20 第 6 章 注塑機(jī)的校核 ...................................................................................... 21 根據(jù)額定注射量選用 ......................................................................... 21 根據(jù)額定鎖模力選用 ......................................................................... 22 根據(jù)注塑機(jī)安裝部分的相關(guān)尺寸選用 ............................................. 22 根據(jù)開(kāi)模行程選用 ............................................................................. 23 第 7 章 注塑模具側(cè)向分型和抽芯機(jī)構(gòu)設(shè)計(jì) .................................................. 23 滑塊和 T 形塊的設(shè)計(jì) ........................................................................ 23 斜頂?shù)脑O(shè)計(jì) ......................................................................................... 24 第 8 章 注塑模具結(jié)構(gòu)件設(shè)計(jì) .......................................................................... 26 畢 業(yè) 設(shè) 計(jì) 說(shuō) 明 書(shū) 4 注射模模架設(shè)計(jì) ................................................................................. 26 推桿板復(fù)位彈簧 ................................................................................. 29 定距分型機(jī)構(gòu) ..................................................................................... 30 定位圈 ................................................................................................. 31 螺釘 ..................................................................................................... 32 第 9 章 冷卻系統(tǒng)的設(shè)計(jì) ......