【正文】 esign method and processes of the plastics mould have been described. In design, some parts of plastics mould have been designed, such as: injecting system, temperaturecontrol system, director, joint face, pushing off system, mould unloading system, air evacuation groove. And material function of the plastic piece has been analysized. Keywords: Three links pipeline, Injection mould, director , joint face , stripping , drive out. 摘 要 ................................................................................................................................... 2 ABSTRACT............................................................................................................................... 3 第一章 引言 .............................................................................................................................. 5 模具在加工工業(yè)中的地位 ........................................................................................... 5 模具的發(fā)展趨勢(shì) ......................................................................................................... 5 研究?jī)?nèi)容 ....................................................................................................................... 6 第二章 工藝方案分析 ................................................................................................................ 7 塑件分析 ...................................................................................................................... 7 材料特征 ...................................................................................................................... 7 第三章 注射機(jī)的選擇及校核 ..................................................................................................... 9 注射機(jī)的選擇 ................................................................................................................ 9 型腔數(shù)目的確定及校核 ................................................................................................ 10 鎖模力的校核 ........................................................................................................... 11 開模行程的校核 ....................................................................................................... 12 第四章 Moldflow 模流分析 ...................................................................................................... 13 網(wǎng)格劃分及診斷修復(fù) .................................................................................................. 13 最佳澆口位置分析 ...................................................................................................... 14 澆注方案的設(shè)計(jì) ......................................................................................................... 14 不同澆注方案的 Moldflow 流變分析結(jié)果及其比較 ....................................................... 15 設(shè)計(jì)方案的選定 ....................................................................................................... 21 澆注系統(tǒng)的設(shè)計(jì) ....................................................................................................... 21 分型面的選擇 ................................................................................................. 21 主流道的設(shè)計(jì) ................................................................................................... 22 主流道襯套的設(shè)計(jì) .......................................................................................... 22 分流 道的設(shè)計(jì) ................................................................................................. 23 澆口的設(shè)計(jì) ..................................................................................................... 23 拉料桿和冷料穴設(shè)計(jì) ......................................................................................... 24 排氣系統(tǒng)的設(shè)計(jì) ................................................................................................ 24 第五章 模 架的選擇 ................................................................................................................. 25 第六章 成型零部件的設(shè)計(jì) ....................................................................................................... 25 側(cè)向分型及抽芯機(jī)構(gòu)的設(shè)計(jì) ......................................................................................... 25 斜導(dǎo)柱的結(jié)構(gòu)形式 ....................................................................................................... 26 楔緊 塊的設(shè)計(jì) ............................................................................................................. 28 側(cè)滑塊設(shè)計(jì) ................................................................................................................. 28 滑塊的導(dǎo)滑槽設(shè)計(jì) ...................................................................................................... 29 定位裝置設(shè)計(jì) .............................................................................................................. 29 推出機(jī)構(gòu) ..................................................................................................................... 29 第七章 溫度調(diào)節(jié)系統(tǒng) .............................................................................................................. 30 冷卻水道的結(jié)構(gòu)設(shè)計(jì) .................................................................................................. 30 第八章 總裝配圖 ..................................................................................................................... 31 第九章 設(shè)計(jì)總結(jié) ..................................................................................................................... 32 第十章 經(jīng)濟(jì)分析 ................................................................................................................... 33 致 謝 ............................................................................................................................... 35 參 考 文 獻(xiàn) ............................................................................................................................ 36 5 第一章 引言 模具在加工工業(yè)中的地位 模具是大批量生產(chǎn)同形產(chǎn)品的工具，是工業(yè)生產(chǎn)的主要工藝裝備。采用模具生產(chǎn)零部件，具有生產(chǎn)效率高、質(zhì)量好、成本低、節(jié)約能源和原材料等一系列優(yōu)點(diǎn)，已成為當(dāng)代工業(yè)生