畢業(yè)論文-密碼器外殼注塑模設(shè)計(jì)說明書(已修改)

　

【正文】 畢 業(yè) 設(shè) 計(jì) 題目： 密碼器外殼注塑模設(shè)計(jì) 學(xué) 生： 學(xué) 號： 院 （系）： 職業(yè)教育師范學(xué)院 專 業(yè)： 材料成型及控制工程 指導(dǎo)教師： 2022年 5 月 28日I 摘 要 注射成型是熱塑性塑料成型的主要方法之一，可以一次成型形狀復(fù)雜的精密塑件。本設(shè)計(jì)是 微型密碼器外殼 塑料模具的設(shè)計(jì)，對零件結(jié)構(gòu)進(jìn)行了工藝分析，采用 ABS 作為塑件的材料。采用雙分型面，根據(jù)模具的型腔數(shù)目以及最大注塑量、注射壓力、鎖模力、模具的安裝尺寸等因素選擇了注射機(jī)，選擇成型零部件的尺寸；采用 兩板式模具小型模具，潛伏式 澆口；利用直導(dǎo)柱導(dǎo)向， 斜頂頂出 ，完成側(cè)抽和頂出、脫模，并對模具的材料進(jìn)行了選擇，如此設(shè)計(jì)出的結(jié)構(gòu)可確保模具工作運(yùn)行可靠。對模具結(jié)構(gòu)與注射機(jī)的匹配進(jìn)行了校核。最后用 UG 繪制出模具三維圖形及 AutoCAD 繪制了一套模具裝配圖和零件圖。 關(guān)鍵詞 ： 密碼器 ，注塑模，模具設(shè)計(jì) ，兩板式 II Abstract Injection molding is one of the main method of thermoplastic plastic molding, can be a plicated shape of precision plastic forming parts. This design is the micro password shell plastic mold design and analysis of parts structure technology, adopt ABS as the material of plastic parts. With double parting surface, according to the mold cavity number, and the maximum injection volume, injection pressure and clamping force, the installation of the mould size factors such as the injection machine choice, choose the size of the molding parts。 Use two plate mold small mold, latent type gate。 USES the straight guide pillar guidance, oblique bumps, plete side smoke and ejection, parting, and the selection is made to the mold material, such a structure are designed, which can ensure the mold reliable operation. On the mold structure and injection machine matching check. Finally using UG to map the mold 3 d graphics and AutoCAD drawing a set of mold assembly drawing and part drawing. Keywords: Password, injection mold, mold design, two plate III 目 錄 摘 要 ....................................................................................................................................................... I Abstract .................................................................................................................................................... II 1 緒 論 ................................................................................................................................................. 1 模具工業(yè)的概況 ........................................................................................................................ 1 我國的塑料模具工業(yè)技術(shù)現(xiàn)狀 ................................................................................................ 1 我國塑料模具工業(yè)和技術(shù)今后的主要發(fā)展方向 .................................................................... 3 2 制件分析 ............................................................................................................................................. 5 成型工藝分析 ............................................................................................................................ 5 密碼器 零部件（ ABS）的成型 特性與工藝參數(shù) ...................................................................... 5 ABS 塑料主要的性能指標(biāo) ............................................................................................... 6 ABS 的注射成型工藝參數(shù) ............................................................................................... 6 3 注塑設(shè)備的選擇 ................................................................................................................................. 8 估算塑件體積 ............................................................................................................................ 8 選擇注射機(jī) ................................................................................................................................ 8 模架及標(biāo)準(zhǔn)件的選定 ................................................................................................................ 9 4 脫模力計(jì)算 ....................................................................................................................................... 12 5 側(cè)向分型與抽芯機(jī)構(gòu)設(shè)計(jì) ............................................................................................................... 13 6 成型零件設(shè)計(jì) ................................................................................................................................... 14 型腔徑向尺寸 .......................................................................................................................... 14 成型制件寬 140 ㎜處型腔的計(jì)算： ............................................................................ 14 成型制件寬 70mm 處型腔的計(jì)算： ............................................................................ 15 型芯高度尺寸 .......................................................................................................................... 15 凹模內(nèi)側(cè)型芯高度 5mm 的 成型尺寸計(jì)算： .............................................................. 15 成型制件深 3mm 的成型尺寸計(jì)算： .......................................................................... 16 成型制件深 8 ㎜處型芯高度的計(jì)算： ........................................................................ 16 IV 型芯徑向尺寸 .......................................................................................................................... 17 7 澆注系統(tǒng)的設(shè)計(jì) ............................................................................................................................... 18 主流道設(shè)計(jì) .............................................................................................................................. 18 冷料井設(shè)計(jì) .............................................................................................................................. 19 分流道的布局 .......................................................................................................................... 19 澆口選擇 .................................................................................................................................. 20 8 分 圖 型面的選擇與排氣系統(tǒng)的設(shè)計(jì) ............................................................................................... 23 分型面的選擇 ...............................................................