【正文】 河北工程大學(xué)畢業(yè)設(shè)計(jì) I 摘 要 該塑料骨架總體形狀為回轉(zhuǎn)體，整體尺寸不小，需要大批量生產(chǎn)，為了提高生產(chǎn)率，降低成本，故采用模具成批注射生產(chǎn)。 。該模具 采用普通澆注系統(tǒng)，由于一模一腔，利用分型面間隙排氣，該分型面位于熔體流動(dòng)的末端利用分型面間隙排氣。本模具采用楔緊塊與定模板制成一體的整體式結(jié)構(gòu)，牢固可靠性大。利用 導(dǎo)滑條導(dǎo)滑。 選尼龍 (PA6) 關(guān)鍵詞：斜導(dǎo)柱 ；斜滑塊 ；澆注系統(tǒng) 河北工程大學(xué)畢業(yè)設(shè)計(jì) II Abstract The key point of the structure design of plastic injection mould with Vbelt pulley groove is the parting(,side action) and eyecting on the analysis of the technologacical characteristics of plastic pulley,a practical mould structure is presented,involving the design of ponents of mold and their working ensure the quality product,the side pulls and demoulding are acplished by use of the arrester,which prevents the side action of cavity splits at from the beginning of mould opening to a certain travel,as well as by use of angle slide ejecting mould is pact in structure,credible in pushout and easy in installing,maintaining and operating,The quality of product is good and the production effciency is high. Key words:pulley。 injection mould。Angledlift splits。Parting。Arrester device 河北工程大學(xué)畢業(yè)設(shè)計(jì) 1 目錄 摘 要 ...................................................................................................................... I 第一章、塑件工藝分析 ....................................................................................... 3 塑件的原始材料分析 ........................................................................................ 3 塑件的結(jié)構(gòu)、尺寸精度及表面質(zhì)量分析 ............................................................ 6 結(jié)構(gòu)分析 ................................................................................................... 6 、尺寸精度分析 .......................................................................................... 6 、表面質(zhì)量分析 .......................................................................................... 6 、 明確塑件生產(chǎn)批量 ........................................................................................ 7 、估算塑件的體積和重量 ................................................................................ 7 、分析塑件的成型工藝參數(shù) ............................................................................... 7 第二章、確定模具結(jié)構(gòu)方案 ................................................................................ 8 、脫模原理 ...................................................................................................... 8 、確定型腔數(shù)量及布局形式 ............................................................................... 9 、選擇分型面 ................................................................................................... 9 、確定澆注系統(tǒng)與排氣系統(tǒng) ............................................................................... 9 、澆注系統(tǒng)形式 ......................................................................................... 9 、主流道設(shè)計(jì) ............................................................................................ 9 、分流道設(shè)計(jì) .......................................................................................... 10 、分流道的形狀和尺寸 .......................................................................... 10 、分流道的表面粗糙度 ...........................................................................11 、澆口的設(shè)計(jì) ...........................................................................................11 、排氣系統(tǒng) .............................................................................................. 13 、選擇推出方式 .......................................................................................... 13 第三章、模具設(shè)計(jì)的有關(guān)計(jì)算 .......................................................................... 15 、型芯和型腔工作尺寸的計(jì)算 ......................................................................... 15 、側(cè)壁厚度與推板厚度的計(jì)算 ...................................................................... 16 、側(cè)壁厚度 .............................................................................................. 16 河北工程大學(xué)畢業(yè)設(shè)計(jì) 2 、推板厚度 .............................................................................................. 16 、斜導(dǎo)柱等側(cè)抽芯有關(guān)計(jì)算 ............................................................................. 16 、斜導(dǎo)柱的設(shè)計(jì)與計(jì)算 ................................................................................. 16 、斜滑塊（型腔）的設(shè)計(jì) .......................................................................... 19 、楔緊塊的設(shè)計(jì) ........................................................................................ 19 、導(dǎo)滑條的設(shè)計(jì) ........................................................................................ 19 、冷卻與加熱系統(tǒng) ........................................................................................ 20 第四章、選擇模架 ............................................................................................. 21 、初選注射機(jī) ................................................................................................. 21 、 澆注系統(tǒng)重量 ........................................................................................ 21 、注射壓力 ............................................................................................... 23 、選標(biāo)準(zhǔn)模架 ................................................................................................. 23 第五章、校核注射機(jī) ......................................................................................... 24 、注射量、鎖模力、注射壓力、模具厚度的校核 .............................................. 24 、開模行程的校核 .......................................................................................... 24 、模具在注射機(jī)上的安裝 ................................................................................ 24 第六 章、推出機(jī)構(gòu)的設(shè)計(jì)與校核 ...................................................................... 25 、推件力的計(jì)算 .............................................................................................. 25 、推桿的設(shè)計(jì) ................................................................................................. 25 、推管的直徑計(jì)算 ....................