雙向水晶頭接線座注射成型工藝研究及模具設(shè)計,雙向,水晶頭,接線,注射,成型,工藝,研究,鉆研,模具設(shè)計 目 錄 摘要 .....................................................1 關(guān)鍵詞 .....................................................1 1前言 .....................................................1 2塑件的工藝分析 .........................................3 2.1尺寸和精度 ...........................................3 2.2塑件的形狀 ...........................................3 2.3塑件的臂厚 ...........................................4 2.4塑件的材料...........................................4 3塑件的體積估算和注射機型號的選擇 .......................5 3.1估算塑件體積...........................................5 3.2注射機的類型和規(guī)格 ...................................5 3.3型腔數(shù)目的校核 .......................................7 4澆注系統(tǒng)與排溢系統(tǒng)的設(shè)計 ...............................7 4.1主流道襯套的設(shè)計 .....................................8 4.2分流道的設(shè)計 ........................................8 4.2.1分流道的截面形狀........................................9 4.2.2分流道的截面尺寸........................................9 4.2.3分流道的布置采用平衡式分布...............................9 4.3 冷料井和拉料桿的設(shè)計 ................................9 4.3.1設(shè)在分流道末端的冷料穴................................9 4.3.2設(shè)在主流道的冷料穴................................10 4.4 型腔的布局 ..........................................11 4.5澆口的設(shè)計 ..........................................11 4.6排溢系統(tǒng)的設(shè)計 ......................................12 5成型零件的設(shè)計 ........................................12 5.1分型面的確定 ........................................12 5.2影響塑件尺寸精度的主要因素 ..........................12 5.2.1塑件收縮率的影響.......................................12 5.2.2模具成型零件的制造誤差.................................13 5.2.3模具零件的磨損........................................13 5.2.4模具安裝配合的誤差.....................................13 5.3成型零件的結(jié)構(gòu)設(shè)計 ..................................14 5.3.1定模的結(jié)構(gòu)設(shè)計........................................15 5.3.2型芯的結(jié)構(gòu)設(shè)計........................................15 5.3.3成型零件的尺寸計算.....................................16 5.4模具型腔側(cè)壁與底板厚度的計算 ........................18 5.4.1型腔側(cè)壁厚度計算....................... .............19 5.4.2型腔底板厚度計算...................................19 5.5模架型號與尺寸的選擇 ................................20 5.5.1墊塊的選擇........................................20 5.5.2定模座板厚度的選擇................................20 5.5.3動模座板厚度的選擇.....................................20 6推出機構(gòu)的設(shè)計 ........................................21 6.1脫模力的計算 ........................................21 6.2推出機構(gòu)的設(shè)計 ......................................22 6.2.1推桿的形狀及固定形式...............................22 6.2.2推桿位置的設(shè)置........................................22 6.2.3推桿的尺寸........................................22 6.3推出機構(gòu)導(dǎo)向與復(fù)位的設(shè)計 ............................23 6.3.1推出機構(gòu)的導(dǎo)向........................................23 6.3.2推出機構(gòu)的復(fù)位........................................24 7側(cè)向分型與抽芯機構(gòu)的設(shè)計 ..............................24 7.1抽拔力的計算 ........................................24 7.2抽芯距的計算 ........................................24 7.3斜導(dǎo)柱的設(shè)計與計算 ..................................24 7.3.1斜導(dǎo)柱的安裝形式......................................24 7.3.2斜導(dǎo)柱的結(jié)構(gòu)形式及尺寸.................................25 8冷卻系統(tǒng)的設(shè)計 ........................................26 9注射機與模具的參數(shù)的校核 ..............................26 9.1最大注塑量的校核 ....................................26 9.2模具與注塑機安裝部分相關(guān)尺寸的校核 ..................27 9.2.1噴嘴尺寸....................................27 9.2.2定位圈尺寸....................................27 9.2.3模具厚度....................................27 9.2.4模具長度與寬度....................................27 9.3鎖模力的校核 ........................................27 9.4開模行程的校核 ......................................27 9.5頂出裝置的校核 ......................................28 10標(biāo)準件的選擇 ..........................................28 10.1定位銷釘 ............................................28 10.2螺釘 ................................................29 10.3彈簧 ................................................29 11模具的裝配 ...........................................29 11.1組件型腔和型芯與模板的裝配 .........................29 11.2推桿的裝配要求 .....................................30 11.3模具總裝配程序 .....................................30 11.4模具的裝配要求 .....................................30 11.5模具的裝配工藝 .....................................31 12總結(jié) ....................................................31 參考文獻 ................................................31 致謝 ....................................................32