塑料夾子注塑模具設(shè)計(jì)

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摘要 本次畢業(yè)設(shè)計(jì)是讓我們綜合運(yùn)用機(jī)械制造和模具設(shè)計(jì)中的基本理論，把課本知識(shí)與工程問題相結(jié)合，在掌握一定的設(shè)計(jì)方法體系和規(guī)范的前提下，運(yùn)用相關(guān)軟件和手冊(cè)、圖表等技術(shù)資料，擬定注塑模具的設(shè)計(jì)方案，完成模具的結(jié)構(gòu)設(shè)計(jì)，著重培養(yǎng)我們的創(chuàng)新能力。題目為塑料夾子的注塑模具設(shè)計(jì)。在設(shè)計(jì)過程中，首先運(yùn)用UG/CAD等繪圖軟件進(jìn)行繪制，然后選用注塑機(jī)型號(hào)和塑件材料，接著設(shè)計(jì)分模面，型腔數(shù)目，澆注系統(tǒng)，導(dǎo)向機(jī)構(gòu)，脫模機(jī)構(gòu)，溫度調(diào)節(jié)系統(tǒng)，排氣系統(tǒng)等，并對(duì)此進(jìn)行相關(guān)計(jì)算，最后對(duì)設(shè)計(jì)的模具進(jìn)行試模。在此次設(shè)計(jì)中，注塑機(jī)型號(hào)選用SYS—10；塑件材料選用聚丙烯；型腔數(shù)目為一模一腔；澆注系統(tǒng)中的澆口選用點(diǎn)澆口；導(dǎo)向機(jī)構(gòu)為模具型腔四周互相配合的4對(duì)導(dǎo)柱和導(dǎo)套；脫模機(jī)構(gòu)選用簡(jiǎn)單脫模機(jī)構(gòu)中的推桿脫模機(jī)構(gòu)；溫度調(diào)節(jié)系統(tǒng)為圍繞塑件的冷卻水路；由于模具為小型模具，且分模面適宜，不必設(shè)計(jì)排氣系統(tǒng)。經(jīng)相關(guān)計(jì)算和校核后，該模具能夠達(dá)到要求。

關(guān)鍵詞：塑料模具 注薂@尚� 塑料夾子

Injection mold design of the plastic clips

Abstract The graduation project is to make our integrated use of machinery and mold design of the basic theory, the textbook knowledge and engineering problems combined under master certain design methodology and specification of the premise, the use of relevant software and manuals, charts and other technical information intended injection mold design, mold design completed, with emphasis on cultivating our ability to innovate. The topic is the plastic injection mold design of clip. In the design process, first we use UG / CAD drawing software for drawing, and then we choose the type and plastic injection molding machine materials, then we design parting surface, number of cavities, pouring system, guiding mechanism, stripping mechanism, temperature control system , exhaust system, etc., and we make correlation calculation, finally we test mold design mode. In this design, the injection molding machine model selection is SYS-10; plastic material selection is polypropylene; the number of cavity is a cavity of a mold; pouring gate system selection is point gate; oriented institutions is around each mold cavity with the four pairs of guide posts and bushings; ejection mechanism chosen is simple stripping mechanism putter release mechanism; temperature control system is the cooling water around the plastic parts; due to the mold is small mold, and parting surface is suitable, we do not need to design the exhaust system. After the relevant calculations and checking, the mold can meet the requirements.

Key words: plastic mold injection molding plastic clips


目錄
第一章 緒論 1
1.1 現(xiàn)代模具工業(yè)的發(fā)展 1
1.2 注塑模具在我國(guó)的現(xiàn)狀 1
1.3 注塑模具在我國(guó)的發(fā)展趨勢(shì) 2
1.4 設(shè)計(jì)目的 2
第二章 塑件的結(jié)構(gòu)分析及選材 3
2.1 塑件的結(jié)構(gòu)分析 3
2.1.1 技術(shù)要求 3
2.1.2 塑件結(jié)構(gòu)分析及選材 4
2.2 聚丙烯的相關(guān)資料 4
2.2.1 性能 4
2.2.2 成形特性 4
2.2.3 力學(xué)性能 5
2.2.4 成形條件 5
2.2.5 成形注意事項(xiàng) 6
第三章 方案的設(shè)計(jì) 7
3.1 型腔數(shù)目的確定及排布 7
3.2 分模面的選擇 7
3.2.1 分模面的選擇原則 7
3.2.2 分模面的確定 8
3.3 注塑機(jī)的選擇與校核 8
3.3.1 注塑機(jī)的選擇 8
3.3.2 注塑機(jī)的校核 9
3.4 澆注系統(tǒng)的設(shè)計(jì) 11
3.4.1 澆注系統(tǒng)的設(shè)計(jì)原則 11
3.4.2 主流道重要尺寸參數(shù) 11
3.4.3 澆口的選擇 11
3.5 成形零件設(shè)計(jì) 12
3.6 合模導(dǎo)向和定位機(jī)構(gòu) 13
3.7 脫模機(jī)構(gòu)設(shè)計(jì) 14
3.8 模具的溫度調(diào)節(jié)系統(tǒng) 14
3.9 排氣系統(tǒng)的設(shè)計(jì) 15
3.10 模架的設(shè)計(jì) 16
3.11 模具的裝配圖 16
第四章 模具開模合模過程 19
結(jié)論 20
致謝 21
參考文獻(xiàn) 22