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擋條套注塑模設(shè)計
摘 要
本設(shè)計題目為擋條套注塑模設(shè)計，體現(xiàn)了側(cè)抽芯類塑料零件的設(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(zhǔn)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。
本塑件的兩側(cè)都有凸臺，且塑件比較小，采用斜導(dǎo)柱側(cè)抽芯比較困難，所以采用了頂桿平移式抽芯，這種設(shè)計還避免了設(shè)計頂出頂桿，有利于模具的簡化，且是自動脫模取件，工作效率明顯提高，這是這種模具的方便之處。解決了側(cè)抽芯時的干涉問題，把頂出與側(cè)抽芯動作結(jié)合起來。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 凸臺 側(cè)抽芯 頂桿
擋條套注塑模設(shè)計
Abstract
The topic for the design of the block sets injection mold is to design embodies the core pulling side of the plastic parts design, content and direction, the design of certain significance. Through parts of the mold design, the designers to further strengthen the basis of injection mold design knowledge for the design of more complex injection mold made to pave the way and learned 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.
The plastic parts are convex on both sides of the Taiwan, and the relatively small plastic parts using oblique side-guided core-pulling is difficult, so using a push-core pulling translation, which also designed to push the design to the top, simplified to die, and is automatically Stripping pickup, and the working efficiency markedly improved, it is this convenience of the mold. Side Core Pulling solve the interference problem, and the top side of the core-pulling action together. Such institutions Stripping reliable, convenient and design space in the mold of the smaller, very suitable for the use of the mold.
Key words: injection mold ,convex,de-core pulling, mandril