風(fēng)扇蓋后蓋注塑模具設(shè)計(jì)說(shuō)明書(shū)

1、 本科畢業(yè)設(shè)計(jì)(論文) 題目：風(fēng)扇蓋后蓋注塑模具設(shè)計(jì) 風(fēng)扇蓋2模具設(shè)計(jì)摘 要模具是工業(yè)生產(chǎn)中使用極為廣泛的主要工藝裝備，它是當(dāng)代工業(yè)生產(chǎn)的重要手段和工藝發(fā)展方向，許多現(xiàn)代工業(yè)的發(fā)展和技術(shù)水平的提高，在很大程度上取決于模具工業(yè)的發(fā)展水平。本設(shè)計(jì)分析了塑件的結(jié)構(gòu)，提出了模具設(shè)計(jì)的關(guān)鍵點(diǎn)，設(shè)計(jì)了模具的整體結(jié)構(gòu)。根據(jù)塑件分型面的位置，設(shè)計(jì)了推件板和斜頂桿的推出結(jié)構(gòu)，零件采用了雙分型面的側(cè)澆口，提高了零件的外面質(zhì)量。通過(guò)對(duì)塑件進(jìn)行工藝的分析及其結(jié)構(gòu)分析，從產(chǎn)品結(jié)構(gòu)工藝性，具體模具結(jié)構(gòu)出發(fā)，對(duì)模具的澆注系統(tǒng)、模具成型部分的結(jié)構(gòu)、頂出系統(tǒng)、注射機(jī)的選擇及有關(guān)參數(shù)的校核都有詳細(xì)的設(shè)計(jì)。該模具一模兩腔，采用頂針

2、頂出結(jié)構(gòu)。經(jīng)過(guò)生產(chǎn)驗(yàn)證，該模具結(jié)構(gòu)合理，動(dòng)作可靠。關(guān)鍵詞：塑料模具；注塑機(jī)；分型面 Die design of fan cover AbstractMold is widely used in industrial production the main technological equipment, It is an important means of modern industrial production and process development direction ,Many modern industrial development and the improvement

3、of the technical levels ,Largely depends on the development of die and mold industry level.This design on the analysis of the structure ，and puts forward the mold design key points，designed the overall structure of the mold. According to the plastic pieces of parting surface，designed the push plate

4、and the inclined plunger，the introduction of the structure，part uses the double parting surface point gate， improve the quality of the parts outside of the. Through to the plastic parts for process analysis and structure analysis，from the product structure craft，specific die structure，the mold of ga

5、ting system，molding part of the structure，the ejection system，selection of injection machine and related parameters of checking all have detailed design. The mold one module and four cavities，adopts the thimble ejection structure. Through production verification，the die structure is reasonable，reliable operation. Key Words： Plastic mold；Injiection machine；Parting surface主要符號(hào)表K 安全系數(shù) E 材料彈性模量Smax 塑料的最大收縮率 Smin 塑料的最小收縮率 s 塑件公差 安全系數(shù)Qcp 塑料平均收縮率 S頂 頂出行程 Ds 塑件內(nèi)形基本尺寸 傾斜角Hs 塑件內(nèi)形深度基本尺寸 Q 抽拔阻力P1 動(dòng)模受的總壓力 P 斜導(dǎo)柱所受的彎曲力F