【正文】
畢業(yè)設(shè)計(論文)課題:盒蓋注塑模具設(shè)計課題名稱:_______系 別:_______專 業(yè):_______班 級:_______姓 名:_______學(xué) 號:_______指導(dǎo)老師:_______201241摘 要塑料模具在當(dāng)今社會越來越廣泛的應(yīng)用,從電腦、手機、飲料、臺燈、水筆、水盆等方面應(yīng)用極其廣泛,可以說從我們的吃穿住行都離不開它。注射成形是成形熱塑件的主要方法,因此應(yīng)用范圍很廣。注射成形是把塑料原料放入料筒中經(jīng)過加熱熔化,使之成為高黏度的流體,用柱塞或螺桿作為加壓工具,使熔體通過噴嘴以較高壓力注入模具的型腔中,經(jīng)過冷卻、凝固階段,而后從模具中脫出,成為塑料制品。本次的畢業(yè)設(shè)計是盒蓋注塑模的設(shè)計,該模具結(jié)構(gòu)簡單,成型分型都非常簡單。依據(jù)產(chǎn)品的數(shù)量和塑料的工藝性能確定了以單分型面注塑模的方式進(jìn)行設(shè)計。模具的型腔采用一模一腔,澆注系統(tǒng)采用直澆口成形,推出形式為推桿推出機構(gòu)完成塑件的推出。由于塑件的工藝性能要求注塑模中有冷卻系統(tǒng),因此在模具設(shè)計中也進(jìn)行了設(shè)計。本次的設(shè)計中參考了大量的文獻(xiàn),還在互聯(lián)網(wǎng)上查找資料,設(shè)計過程比較完整。關(guān)鍵詞: 單分型面注射模具;ABS。塑料模具。AbstractPlastic mould in today39。s society more and more wide application, from the puter, mobile phone, beverage, desk lamp, liquid pen, birdbath is widely used, etc, it can be said that from our food and clothing lives can not get away from it all. Injection molding is forming hot plastic pieces of main methods, so wide applications. The plastic injection molding is ingredients in a nitrogentreated barrel with heat of melting, make it bee the high viscosity fluid, with piston or screw as pressure tool, melt through the nozzle with higher injection mould cavity pressure, after cooling, coagulation phase, and then from the mold in decent shape, bee plastic products.The graduation design isThe lid of injection mould stent, the die structure simple, forming the parting quite simple. According to the number of products and plastic39。s process performance determined the parting surface in a single injection mold way design. The mould cavity use a module and four cavity balance layout, pouring system USES some gate forming, roll out form for push board launched institutions plastic parts to launch the finish. Because plastic parts of the process performance requirements of injection mold cooling system, and therefore in the mold design and design. The design of the reference of a large number of literature, and also in the Internet for material, design process is plete.Key words :single injection mold parting surface。 ABS。 Plastic mould.現(xiàn)成設(shè)計購買注意事項定做設(shè)計流程以及注意目錄摘 要 2Abstract 3緒論 51 國際國內(nèi)塑料成型模具發(fā)展概況 52 我國模具設(shè)計技術(shù)今后發(fā)展方向 61塑料制件的工藝性分析及工藝結(jié)構(gòu)設(shè)計 8 8 塑件材料的分析 9 11 11 12 12 123 注塑設(shè)備的選擇 13 13 選擇注塑機 134 塑料件的工藝尺寸的計算 145 分型面的設(shè)計 176 注塑機有關(guān)參數(shù)的校核 177脫模機構(gòu)的設(shè)計與合模導(dǎo)向結(jié)構(gòu)設(shè)計 19 19 198澆注系統(tǒng)的設(shè)計 199 排氣系統(tǒng)和溫度調(diào)節(jié)系統(tǒng)的設(shè)計 20 排氣系統(tǒng) 20 溫度調(diào)節(jié)系統(tǒng)的設(shè)計 2110 繪制裝配圖 22總結(jié) 25參考文獻(xiàn) 26緒論1 國際國內(nèi)塑料成型模具發(fā)展概況80年代以來,在國家產(chǎn)業(yè)政策和與之配套的一系列國家經(jīng)濟政策的支持和引導(dǎo)下,我國模具工業(yè)發(fā)展迅速,年均增速為13%,2003年我國模具工業(yè)產(chǎn)值為375億,至2007年我國模具總產(chǎn)值約為525億元,其中塑料模約35%左右。在未來的模具市場中,塑料模在模具總量中的比例還將逐步提高。我國塑料模工業(yè)從起步到現(xiàn)在,歷經(jīng)半個多世紀(jì),有了很大發(fā)展,模具水平有了較大提高。在大型模具方面已能生產(chǎn)48英寸大屏幕彩電塑殼注射模具、精密塑料模具方面,已能生產(chǎn)照相機塑料件模具、多型腔小模數(shù)齒輪模具及塑封模具。如天津津榮天和機電有限公司和煙臺北極星模具有限公司制造多腔VCD和DVD齒輪模具,所生產(chǎn)的這類齒輪塑件的尺寸精度、同軸度、跳動等要求都達(dá)到了國外同類產(chǎn)品的水平,而且還采用最新的齒輪設(shè)計軟件,糾正了由于成型收縮造成齒形誤差,達(dá)到了標(biāo)準(zhǔn)漸開線齒形要求?!>哔|(zhì)量、壽命明顯提高了,非淬火鋼模壽命可達(dá)10~30萬次,淬火鋼模達(dá)50~1000萬次,交貨期較以前縮短,但和國外相比仍有較大差距,具體數(shù)據(jù)見表11。表11