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洗發(fā)水瓶蓋塑料成型工藝及模具設計 摘要 本設計題目為洗發(fā)水瓶蓋注塑模設計 體現(xiàn)了蓋類零件的設計要求 內容及 方向 有一定的設計意義 通過對該零件模具的設計 進一步加強了設計者注塑模的 基礎知識 為設計更復雜的注塑模具做好了鋪墊并吸取了更深刻的經驗 本設計運用塑料成型工藝及模具設計的基礎知識 首先分析了塑件的成分及性能 要求 為選取澆口的類型做好了準備 然后估算了塑件的體積 便于選取注塑機及確 定型腔數(shù)目 最后分析了塑件的特征 確定模具的設計參數(shù) 設計要點 及推出裝置 的選取 通過分析洗發(fā)水瓶蓋的工藝性 可知工件分型比較復雜 塑件采用順序脫模法進 行脫模分型 由于瓶蓋的結構比較復雜 所以采用點澆口澆注系統(tǒng) 脫模后不在修正 澆口的痕跡 但采用這種澆口時 常常要在模具上增加一個分型面 以便澆口凝料脫 模 關鍵詞 工藝分析 塑件成型 澆注系統(tǒng) 模具結構 THE PLASTIC FORMING AND MOLD DESIGN PROCESS OF SCREW CAP PARTS Abstract This design topic covers the note mold design for the thread manifested has covered kind of components the design request the content and the direction had certain design significance Through to this components mold design further strengthened the designer to pour the mold the elementary knowledge for designed the more complex injection molding mold to complete the upholstery to absorb a more profound experience Through the foundation knowledge firstly the composion and the perfourmance of thr part is analyzed to choose the type of the gat advantagely Secondly the volume of the part is estimated to choose the injection molding machine and to detemine the mould quantity conveniencely Lastly the character of the part is analyzed to determine the mould design parameter and design point and choose the ejection assembly Through the analysis interrupted box thread bottle cap technology capability may know the box thread is the semicircle thread the models to use pulls out the core organization to carry on the drawing of patterns Because bottle cap s on part request is strict therefore uses the runner gating system after the drawing of patterns not in revision runner trace But when uses this kind of runner must increase a profile frequently on the mold so that the runner can congeal the material drawing of patterns Keywords process analysis plastic parts moulding casting system molding structure