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鹽城工學院本科生畢業(yè)塑料瓶蓋模具設計及其型腔仿真加工設計說明書 2008 目錄 1 前言 ..................................................................1 1.1 課題內容 ............................................................1 1.2 課題背景 ............................................................1 1.3 模具國內外發(fā)展概況 ..................................................1 1.4 課題的來源及要求 ....................................................2 2 模具方案及制品設計 ....................................................3 2.1 總體方案設計 ........................................................3 2.2 塑件的測繪 ..........................................................3 2.3 塑件的造型 ..........................................................4 2.4 塑件的材料選擇與分析 ................................................5 2.5 塑件尺寸精度 ........................................................5 2.6 模具材料的選擇 ......................................................5 2.7 脫模斜度 ............................................................6 2.8 型腔數目的確定 ......................................................6 2.9 注射機的選擇 ........................................................7 3 具體設計說明 ..........................................................8 3.1 分型面的確定 ........................................................8 3.2 澆注系統的設計 ......................................................9 3.3 主流道的設計 ........................................................9 3.4 分流道的設計 .......................................................10 3.5 澆口套的設計 .......................................................11 3.6 冷卻裝置設計 .......................................................11 3.7 推出機構設計 .......................................................12 3.8 推桿 ...............................................................13 3.9 復位桿 .............................................................13 3.10 導向裝置 .........................................................13 3.11 側抽芯的設計 .....................................................13 3.12 確定各模板尺寸 ....................................................14 3.13 凸凹模結構形式 ....................................................14 3.14 注射機技術參數的校核 .............................................15 3.15 零件強度計算及校核 ...............................................16 4 模具的三維造型 ......................................................19 4.1 典型零件的造型造型 .................................................19 4.2 模架的三維造型 .....................................................19 5 型腔工藝分析及加工仿真 ..............................................22 6 結論 ................................................................26 參考文獻 ..............................................................27 致謝 ..................................................................28 附錄 ..................................................................29 塑料瓶蓋模具設計及其型腔仿真加工 1 1 塑料瓶蓋模具設計及其型腔仿真加工 摘要：注塑模具是現在所有塑料模具中使用最廣的模具，能夠成型復雜的高精度 的塑料制品。本課題是對塑料瓶蓋模具設計并分析加工工藝。 本模具考慮到年產量、工廠的設備及塑件的精度要求，選擇一模四腔結構。以瓶蓋 主體和防偽圈之間的面作為分型面,使制品強制脫模。流道采用帶環(huán)形冷料穴，脫 模時方便將主流道凝料和塑件帶出，確保熔融塑料幾乎能同時到達每個型腔的進料 口。為了使動、定模能夠準確地動作, 導向定位機構利用導柱與導套的配合。頂出 機構是推桿推出的一次脫出機構。考慮到零件的位置關系,冷卻水道采用循環(huán)式分 布，以便冷卻均勻、快速。 采用 ProE 來實現塑料瓶蓋三維設計及模具成型零件設計，分析制件的成型質量 和完成分型面的設計，再采用 CIMATRION 來實現其數控仿真的加工，并在產品設計 及模具裝配過程中，輔助以必要的理論計算，將數字化設計與理論計算結合起來， 可以大大縮短產品研發(fā)周期、模具設計周期，提高產品設計及模具設計的準確性、 產品成型質量，降低產品研發(fā)、模具設計成本。在設計過程中制定了合理的工藝方 案，滿足了大批量生產要求。同時，還編制了詳細的工藝文件來保證模具的順利加 工及制品的生產。 通過合理的設計，本模具滿足生產與應用的要求。 關鍵詞：注塑模具；加工工藝分析；Pro/E。 塑料瓶蓋模具設計及其型腔仿真加工 2 The Design and Simulation Processing of Mold for Plastic Caps Abstract：At present ,injection molding is the plastics mould that has being used most extensively , it can mold the complex and high accurate plastic product. The Subject is about the design of the plastic caps and simulation processing. Considering the annual output, the equipment of the factory and the requirement of precision of the plastic product, four cavities in a mould. The middle horizontal surface of the goods was To cap the main circle and security between the surface as a type face, so that mandatory Stripping products. The runner is designed to be balanced and symmetrical distribution, ensure that melting plastic could reach each cavitys gate almost.. Suspension and Positioning mechanism use matched guide pillar and guide sleeve to make movable mould, fixed mould to work accurately. The knockouts uses once ejecting mechanism that lifter pushes out. By the relation of the position of each part, cooling channels are designed to straight channels to cool effectively, quickly. With Pro/Engineer,MoldFlow to implement three-dimensional design and mold volume design of the Plastic caps, and shaping quality of part was analyzed and the parting line was designed by Pro/Engineer, then utilized CIMATRION to accomplish the assemblage of the mold with the assistance of essential theory calculate mixed with figure design. It would not only shorten the cycle of product research and mold design, and improve the preciseness and the product shaping quality, but also lower the cost of the research. Having made the rational craft scheme in the design process ,so it has met the requirement of producing in enormous quantities. Moreover, it also prepared a detailed document to ensure that the process for the smooth processing of mold and apparel production. Through the rational design, It has meet the production and application of the requirements. Key words: injection mould；process analysis；Pro/E.