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河南機(jī)電高等?？茖W(xué)校材料工程系畢業(yè)設(shè)計(jì)說(shuō)明書(shū)/論文
（畢業(yè)設(shè)計(jì)/論文題目）
摘 要
本設(shè)計(jì)是骨架注塑模，特點(diǎn)為薄壁骨架，采用材料為聚苯乙烯，模具采用延時(shí)彎銷機(jī)構(gòu)，產(chǎn)品自動(dòng)脫落，無(wú)需頂出板。這樣使模具結(jié)構(gòu)更簡(jiǎn)單化，重量減輕，而且省材。工作過(guò)程為：塑料粉末送至料斗，開(kāi)始加熱，加熱溫度為265——500F之間。模具閉合，螺桿前行在壓力作用下熔融塑料進(jìn)入模具型腔。注塑完畢，動(dòng)模具后退，模具打開(kāi)，產(chǎn)品落下。模具閉合，由復(fù)位桿復(fù)位，準(zhǔn)備下一次的注塑。
關(guān)鍵詞： 模具 骨架 注塑模
（畢業(yè)設(shè)計(jì)/論文英文題目）
Abstract
This topic is injection mold for framework. The charactoristice is a thin wall framework. PS are use by this plastics .This mold adoption bend to sell the organization. The part may be down off and don’t need ejector plate and ejector retainer plate. This make the stmcture of the mold turned more simple,the weight ease ,and the provinle material. Plastic powder is loaded into the feed hopper and a centain amount feed into the heating chamber when the planger draws back. Heating temperatures range from 265to500F. After the mold is closed the plunger moves forward ,forcing some of the fluid plastic ynto the mold cavity under pressures. When this over ,the part may be down off when the mold opens. Returns the ejector plate back to its original podition when the mold is colsed. And ready for next.
Keyword: mold framework injection mold
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