【正文】 ， 凹模 (成型零件外部形狀 )。 (5) 制件的橫向分型抽芯及頂出問(wèn)題。 4．宜取高料溫，模溫 對(duì)耐熱，高抗沖擊和中抗沖擊型樹(shù)脂，料溫宜取更高，料溫對(duì)物理性能影響較大。手柄端為空心。 不同的塑性成型方法使用著模具的原理和結(jié)構(gòu)特點(diǎn)各不相同。高效的全自動(dòng)設(shè)備，也只能裝上自動(dòng)化生產(chǎn)模 具才能發(fā)揮其效能。 2．懂得如何協(xié)調(diào)各種約束條件，使設(shè)計(jì)更加趨于完善，如何在有限時(shí)間完成任務(wù)的能力。 畢業(yè)設(shè)計(jì)說(shuō)明書(shū) 打印機(jī)壓輪設(shè)計(jì) 班 級(jí)： 學(xué)號(hào)： 姓 名： 學(xué) 院： 專(zhuān) 業(yè)： 指導(dǎo)教師： 2021 年 6 月 軟件學(xué)院 軟件工程 李彥棟 原霞 打印機(jī)壓輪設(shè)計(jì) 摘 要 本次設(shè)計(jì)的題目為打印機(jī)壓輪設(shè)計(jì) 。 關(guān)鍵詞： 澆口，側(cè)向分型與抽芯結(jié)構(gòu)，分型面，脫模機(jī)構(gòu)，冷卻系統(tǒng) Printerpressure rollerdesign Summary Thetopicprinterdesignedforpressure tothe plexshape oftheworkpiece, taking into account thereleaseprocess isdifficult, so the useoftwotypes. The secondis aside parting, directpartsremoved fromthe cavitymoldideas. Theplasticmaterialdesignedforpolyethylene, lowvolumeproductionquantities. According toplasticmaterials, structures,molddesign usingpoint gate, atwocavity mold, the second type,slidesidewaysangle pincore pulling, the gapexhaustparts, thermocoupleandcirculating coolingmold temperatureadjustment, easy processing, easy to install, goodcooling selectsTTF200type injection molding machine. In addition, allmolddesignsare carefullycheckedto achieve the desireddesign requirements. Key words： Runner ， Side partingandcore pullingstructure， Parting surface， Stripping mechanism， CoolingSystem. 中北大學(xué) 2021 屆畢業(yè)設(shè)計(jì)說(shuō)明書(shū) 第 I 頁(yè) 共 I 頁(yè) 目錄 1 緒論 ........................................................................................................................................ 1 設(shè)計(jì)目的 ............................................................................................................................. 1 塑料成型的加工發(fā)展趨勢(shì) ................................................................................................. 1 2 設(shè)計(jì)依據(jù)及有關(guān)結(jié)論 ............................................................................................................ 3 塑料件有關(guān)資料 ................................................................................................................. 3 對(duì)塑料件性能進(jìn)行分析 .................................................................................................. 3 聚乙烯的工藝參數(shù) .......................................................................................................... 3 本熱塑性塑料性能及注意幾點(diǎn) ...................................................................................... 4 塑料注射模具應(yīng)注意的問(wèn)題 ............................................................................................. 4 注射模具的簡(jiǎn)單結(jié)構(gòu) ......................................................................................................... 5 分型抽芯機(jī)構(gòu) .................................................................................................................. 5 頂出機(jī)構(gòu) .......................................................................................................................... 5 冷卻系統(tǒng)和加熱系統(tǒng) ...................................................................................................... 5 排氣系統(tǒng) .......................................................................................................................... 5 模具的分類(lèi) ......................................................................................................................... 5 單分型面注射模具 .......................................................................................................... 6 橫向分型抽芯機(jī)構(gòu)注射模具 .......................................................................................... 6 本塑件的質(zhì)量的計(jì)算 ......................................................................................................... 6 塑料制件的參數(shù) ................................................................................................................. 7 尺寸和精度 ...................................................................................................................... 7 脫模斜度 .......................................................................................................................... 7 塑件厚度 .......................................................................................................................... 7 加強(qiáng)筋 .............................................................................................................................. 7 圓角 .................................................................................................................................. 7 彈簧的選用 ......................................................................................................................... 8 3 模具設(shè) 計(jì) .............................................................................................................................. 11 中北大學(xué) 2021 屆畢業(yè)設(shè)計(jì)說(shuō)明書(shū) 第 II 頁(yè) 共 II 頁(yè) 注射模的總體設(shè)計(jì) ........................................................................................................... 11 確定型腔的數(shù)目 ............................................................................................................ 11 確定分型面 .................................................................................................................... 11 型腔的方位 .................................................................................................................... 11 型面形狀 ........................................................................................................................ 11 分型面位置 .................................................................................................................... 11 排氣系統(tǒng)設(shè)計(jì) ................................................................................................................... 12 型芯零件的結(jié)構(gòu)設(shè)計(jì) ....................................................................................................... 12 成型零部件尺寸計(jì)算 .......................