【正文】 收縮率 脫模 側(cè)抽芯 3 Abstract Mold is the basal equipment of the national economy. The use of production molds is energyefficient, materialefficient, highproductivity, lowcost manufacturing , consistent good performance products and so on., With these obvious strongpoints they have been widely used in household appliances, automobiles, construction, machinery, electronics, and other areas to produce accessorys in amount. Mold design generally includes shaped accessorys design, molded plastic machine selection, drawing of patterns, pumping core, cooling, molding, exhaust systems design, and rational structural design in mold to improve the quality, performance, life expectancy and costs. Mold CAD/CAM, as a integrated application in technology, is bee the core of modern mold technology and the most important development direction. Keywords: Injection Mould Shrinking rate Take off a mold Side smoked core 4 第一章 緒論 塑料是以高分子聚合物為主要成分，并在加工為制品的某階段可流動成型的材料。模具設(shè)計一般包括成形零件設(shè)計、注塑機(jī)選擇、脫模、抽芯、冷卻、澆注、排氣等系統(tǒng)的設(shè)計，合理的模具結(jié)構(gòu)設(shè)計能夠提高模具的質(zhì)量、性能、壽命和成本。 1 目 錄 第一章 緒論 ............................................................................................................................... 4 第二章 塑料制品的工藝分析 ........................................................................................................ 5 制品結(jié)構(gòu)分析： .............................................................................................................. 5 塑料制品的特性： .......................................................................................................... 5 塑件尺寸的精度： .......................................................................................................... 7 ............................................................................................................... 7 脫模斜度 ........................................................................................................................ 8 第三章 注射機(jī)型號的確定 ........................................................................................................ 8 最大注射量 ..................................................................................................................... 8 xszy125 ................................................................................................... 錯誤 !未定義書簽。 PA的注塑工藝參數(shù)： .................................................................................................... 10 第四章 分型面及排氣系統(tǒng)的設(shè)計 ............................................................................................ 12 分型面的設(shè)計 ............................................................................................................... 12 排氣系統(tǒng)的設(shè)計 ............................................................................................................ 12 第五章 成型零件的尺寸計算 ................................................................................................... 13 型腔尺寸的計算 ............................................................................................................ 13 型芯尺寸的計算 ............................................................................................................ 15 第六章 澆注系統(tǒng)的設(shè)計 .......................................................................................................... 15 概述 ............................................................................................................................. 15 澆注系統(tǒng)的設(shè)計原則 ..................................................................................................... 15 澆注系統(tǒng)的組成 ............................................................................................................ 16 主流道的設(shè)計 ............................................................................................................... 16 冷料井和拉料桿的設(shè)計 ............................................................................................... 17 分流道的設(shè)計 ............................................................................................................. 17 澆口的設(shè)計 ................................................................................................................. 18 第七章 脫模機(jī)構(gòu)的設(shè)計 .......................................................................................................... 20 脫模機(jī)構(gòu)的選用原則 ..................................................................................................... 20 脫模力的計算 ............................................................................................................... 20 第八章 抽芯機(jī)構(gòu)的設(shè)計 .......................................................................................................... 22 斜導(dǎo)柱的設(shè)計 ............................................................................................................... 22 滑塊的設(shè)計 ................................................................................................................... 25 楔緊塊的設(shè)計 ............................................................................................................... 25 導(dǎo)柱的設(shè)計 ................................................................................................................. 25 導(dǎo)套的設(shè)計 ...........................................................................