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長管套注塑模設(shè)計(三號黑體加粗,段前后各1行)
摘 要(小三黑體加粗，段前后各0.5行)
本設(shè)計題目為長管套注塑模設(shè)計，體現(xiàn)了深薄壁類塑料零件的設(shè)計要求、內(nèi)容及方向，有一定的設(shè)計意義。通過對該零件模具的設(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)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。
本塑件齒輪外側(cè)的齒槽與開模方向不一致，且它們之間有一個螺旋的角度，所以在脫模時必須考慮設(shè)計一個能在開模時隨著開模過程的進行使塑件和型腔同時旋轉(zhuǎn)的裝置。本副模具的設(shè)計中，在頂管的尾部安裝了推力軸承，在開模時頂管頂動軸承蓋及軸承座使推塊上升，在上升的過程中，塑件及推塊同時發(fā)生轉(zhuǎn)動，直到塑件脫出型腔。這種機構(gòu)脫?？煽浚O(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 推力軸承 推塊
面頁設(shè)置：1.A4紙，上2.5㎝，下2㎝，左3㎝，右2㎝。
2.每頁34行，每行35字。
長管套注塑模設(shè)計(英文標題)(三號黑體加粗, 段前后各1行)
Abstract(小三黑體加粗，段前后各0.5行)
The requirement ，content and direction of the design of the deep thin wall plastic parts are embodied on this injection mould design of the plastic parts of long pipe box. 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, 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.
Keywords: Injection mould gate thrust bearing ejecting block