前 言
光陰似梭，大學四年的學習一晃而過，為具體的檢驗這四年來的學習效果，綜合檢測理論在實際應用中的能力，除了平時的考試、實驗測試外，更重要的是理論聯(lián)系實際，讓我們走向社會之前完成一次綜合性設計。即本次設計的課題是骨架（SMBS-04）的注射模設計,是對以前所學課程的一個總結。
本次畢業(yè)設計課題來源于生活，應用廣泛，但成型難度大，模具結構較為復雜，對模具工作人員是一個很好的考驗。它能加強對塑料模具成型原理的理解，同時鍛煉對塑料成型模具的設計和制造能力。
在此次設計中，主要用到所學的注射模設計，以及機械設計等方面的知識。著重說明了一副注射模的一般流程，即注射成型的分析、注射機的選擇及相關參數的校核、模具的結構設計、注射模具設計的有關計算、模具總體尺寸的確定與結構草圖的繪制、模具結構總裝圖和零件工作圖的繪制、全面審核投產制造等。其中模具結構的設計既是重點又是難點，主要包括成型位置的及分型面的選擇，模具型腔數的確定及型腔的排列和流道布局和澆口位置的選擇，模具工作零件的結構設計，推出機構的設計，拉料桿的形式選擇，排氣方式設計等。通過本次畢業(yè)設計，使我更加了解模具設計的含義，以及懂得如何查閱相關資料和怎樣解決在實際工作中遇到的實際問題，這為我以后從事模具職業(yè)打下了良好的基礎。
本次畢業(yè)設計得到了廣大老師和同學的幫助，在此表示感謝！由于實踐經驗的缺乏，且水平有限，時間倉促。設計過程中難免有錯誤和欠妥之處，懇請各位老師和同學批評指正。
目 錄
前言
緒論 ········································································1
第一章 設計任務書 ·······················································4
第二章 塑件分析 ·························································5
一、 塑件工藝性 ······················································5
二、 塑件結構分析···················································6
第三章 塑料材料的成型特性與工藝參數 ··································7
第四章 成型設備的選擇··················································9
一、 初選注射機 ·····················································9
二、 型腔數量的確定 ················································10
第五章 澆注系統(tǒng)的設計和排溢系統(tǒng)的設計 ·······························11
一、 塑料制件在模具中的位置 ·······································11
二、 澆注系統(tǒng)的設計 ···············································12
三、 排溢系統(tǒng)的設計 ················································14
第六章 成型零部件的設計與計算 ········································15
一、 成型零件的結構設計 ···········································15
二、 成型零件工作尺寸的計算 ·······································15
三、 模架的選取 ····················································18
第七章 脫模機構的設計 ··················································19
一、 脫模力的計算 ··················································19
二、 推出機構的設計 ················································19
第八章 合模導向機構的設計 ·············································21
一、 導柱 ····························································21
二、 導套····························································21
第九章 鑲塊的精定位設計············································22
第十章 溫度調節(jié)系統(tǒng)的設計與計算·····································22
一、 冷卻的計算·············································22
二、 冷卻系統(tǒng)的設計原則與常見冷卻系統(tǒng)的機構···················23
第十一章 注射機參數的校核··············································23
一、 注射量的校核················································23
二、 注射壓力的校核 ··············································23
三、 模具與注射機安裝部分的相關尺寸······························23
四、 行程的校核 ·····················································24
五、 頂出裝置的校核················································25
參考文獻 ·································································26