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旋鈕注塑成型工藝及模具設(shè)計
摘要：本設(shè)計題目為旋鈕塑模設(shè)計，通過對該塑件模具的設(shè)計，進一步加強了設(shè)計者注塑模設(shè)計的基礎(chǔ)知識，為設(shè)計更復(fù)雜的注塑模具做好了鋪墊和吸取了更深刻的經(jīng)驗。
本設(shè)計運用塑料成型工藝及模具設(shè)計的基礎(chǔ)知識，首先分析了塑件的材料及性能要求，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)量；最后分析了塑件的特征，確定模具的設(shè)計參數(shù)、設(shè)計要點及推出裝置的選取。
本副模具的設(shè)計需要推板頂出機構(gòu)，在開模時用推件板頂出塑件，直到塑件脫出型芯。這種機構(gòu)脫?？煽?，設(shè)計方便且在模具中占用空間較小，非常適合在本副模具中使用。
關(guān)鍵詞：注塑模 澆口 推板
The design of the Injection molding Knob
Abstract：This design topic is the Knob of the Injection molding design, After the plastic part of the Injection molding designed The designer’s foundation knowledge of the injection mould design is reinforced and is able to design more complex injection mould through the design.
Through the foundation knowledge, first, I analysed the plistic material and its properties,so I made selecting the typeal of the gate for preparation,I estimated the plistic parts’ physical vlume which good for choosing the injection-molding machine and the cavity.Last Ianalysed the plistic parts’ chavalteristic,I made the parameter of design,the importance of design and ejctor.
This molde design need other side to open on the open molde. When the open molde the ejector plate ejects the plistic parts until the plistic parts ejector the core,this molde ejector is very good,because this molde use short area and design easy,we often use it.
Keywords: Injection molding , Gate , Ejector plate
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