塑料線卡模具設計

模具論文編號:JX200 所有圖紙,論文字數:19608.頁數:56
目    錄
摘   要 ....................................................................I
1 緒    論 .................................................................1
1 課題背景發展..............................................................1
2成型工藝編制 ..............................................................2
2.1塑件的工藝性分析 ........................................................2
2.1.1塑件原材料分析 ........................................................2
2.1.2塑件的結構和尺寸精度表面質量分析 ......................................2
2.1.3計算塑件的體積和質量.................................................. 3
2.1.4型腔數目的確定........................................................ 3
2.1.5塑件注射工藝參數的確定................................................ 5
2.2分型面的選擇 ............................................................6
2.3確定型腔的排列方式...................................................... 7
2.4 普通澆注系統的設計..................................................... 7
2.4.1主流道的設計 ..........................................................8
2.4.3 冷料穴的設計......................................................... 11
2.5抽芯機構設計............................................................ 11
2.5.1 抽芯距的確定 .........................................................12
2.5.2抽芯力的確定 ..........................................................12
2.6成型零件的結構設計 ......................................................16
2.6.1 型腔的結構設計....................................................... 16
2.6.2 型芯和凸模的結構設計 .................................................16
3.模具的設計計算........................................................... 17
3.1型芯和型腔工作尺寸的計算 ................................................17
3.1.1成形零件的工作尺寸 ....................................................17
3.1.2型腔側壁的厚度和底版厚度的計算........................................ 19
3.2脫模機構設計............................................................ 21
3.2.1 推出機構的選擇....................................................... 21
3.2.2 脫模力的計算 .........................................................21
3.2.2 推桿穩定性計算....................................................... 23
3.2.3 斜楔塊的設計......................................................... 25
3.3復位機構設計 ............................................................25
3.4模具加熱和冷卻系統的計算 ................................................26
3.4.1模具溫度對塑料制品的影響.............................................. 26
3.4.2 模具溫度對成型周期的影響 .............................................26
3.5模架設計................................................................ 28
3.5.1 組成模架的主要零件 ...................................................29
3.5.2 注射模標準模架的選用 .................................................30
3.6 注射機有關參數的校核................................................... 33
3.7試模.................................................................... 37
3.7.1  裝模................................................................ 37
3.7.2  試模 ................................................................38
參考文獻....................................................................41
致  謝..................................................................... 42
外文翻譯 ...................................................................43
原文....................................................................... 43
Injection Molding ..........................................................43
The Nature of Thermodynamics............................................... 46
譯文........................................................................48
塑料注射成型 ...............................................................48
熱力學的性質............................................................... 50

摘     要

       從塑料材料的性能分析，根據塑件的基本形狀和尺寸入手，合理選擇注射的成型方法。通過對塑件工藝性的分析和對模具生產條件及制造水平的掌握，制定出成形工藝卡。在制定出成形工藝卡以后，開始進行模具的結構設計。其中模具的結構設計過程包括：型腔的數目和位置的確定，模具的總體結構形式設計，動模及定模成形零件尺寸的確定，澆注系統形式及尺寸的確定，脫模方式的確定，調溫及排氣系統的確定，模架的選擇待以上各步湊完成以后，便開始繪制模具的結構草圖，根據具體尺寸校核注射模具及注射機的有關尺寸，并對工藝參數進行核定和計算。之后進行初步的審查對所存在的問題進行確定和修正，然后繪制模具總裝配圖，按裝配圖繪制成型零件及所有需要加工的零件工作圖，同時考慮零件的加工工藝。

關鍵字：成型工藝，結構設計，試模。

Abstract
       From the plastic material performance analysis, according to models a basic shape and the size obtain, reasonably selects the injection to take shape the method. Though to models a technological analysis and to the mold working condition and manufacture level grasping, formulates the formed craft card. In formulates after the formed craft card, starts to carry on the mold the structural design. Mold structural design process includes. The cavity number and the position determination, the mold overall structural style design, moves the mold and decides the mold forming components size the determination ,pours the system and  the size determination, the drawing of patterns mode determination after, adjusts warm and the exchaust gas completes, then starts to draw up the mold the structure schematic diagram, according to the specific size examination injection mold and the injection computer related  size, and carries on the checking and the computation to the craft parameter. Carries on the determination and the revision afterward, then the plan mold assembly drawing, takes shape the components and all needs to process, simultaneously considers the components the processing craft.

Key word: takes shape the craft, the structural design.