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1、第4O卷,第1期工程塑料應(yīng)用Vb1·4O-N0·l512012年1月ENGINEERINGPLASTICSAPPLICATIONJan.2012—doi:lO.3969/j.issn.1001-3539.2012.01.013控制開關(guān)面板雙色注射模設(shè)計(jì)范有發(fā),肖雪清(福建工程學(xué)院材料科學(xué)與工程系,福州350108)摘要:介紹了控制開關(guān)面板雙色注射模的設(shè)計(jì)方法。塑料件采用一模二腔、平衡式4點(diǎn)澆口注料的成型方案,解決了塑料件各部分僅依靠0.3mm厚的薄片連接導(dǎo)致型腔充模困難的問題;選用自帶平面旋轉(zhuǎn)轉(zhuǎn)盤換位機(jī)構(gòu)的P型雙色注塑機(jī),可簡(jiǎn)化雙色注射模的結(jié)構(gòu)設(shè)
2、計(jì);采用澆道凝料與塑料件能自動(dòng)分離的點(diǎn)澆口澆注系統(tǒng),以及兩種顏色塑料件分別設(shè)置推桿推出機(jī)構(gòu),實(shí)現(xiàn)了第一色注射只取出澆道凝料而塑料件不脫模,第二色注射澆道凝料與塑料件同時(shí)脫模的動(dòng)作要求。此外,動(dòng)、定模之間設(shè)置圓錐精密定位鎖,動(dòng)、定模鑲塊角部設(shè)置精定位鎖扣,提高了模具的合模精度,并增設(shè)8根支撐柱來加強(qiáng)模具的總體剛度。關(guān)鍵詞:雙色注射模;模具結(jié)構(gòu)設(shè)計(jì);控制開關(guān)面板;丙烯腈一丁二烯一苯乙烯塑料中圖分類號(hào):TQ322文獻(xiàn)標(biāo)識(shí)碼:A文章編號(hào):1001.3539(2012)01.0051.04DesignofBi-colorInjectionMoldforCo
3、ntrolSwitchFacepanelPlasticFanYoufa,XiaoXueqing(DepartmentofM~efialsScienceandEngineering,F(xiàn)~ianUniversityofTectmology,F(xiàn)uzhou350108,China)Abstract:Thedesignmethodofcontrolswitchfacepanelbi—colorplasticinjectionmoldwaspresented.Themoldingschemewasthatthemoldwascomposedoftwomold
4、cavitiesandbalance—typefourgates.Thisstructureovercamethedificultyoffillingmoldcavity,resultedfromthestructuralimperfectionabouteachcomponentofthemoldedpartconnectedwith0.3mmthinsection.Thedesignofbi-colorplasticinjectionmoldwassimplifiedbyusingtheP-double-componentinjectionm
5、achine,whichhadaplanerotationtranspositionmechanism.TheInjectionmoldsystemwaspin-gatethatcouldseparatetheplasticpiecefromfreezingmaterialsofsprue.Thetwocolorplasticinjectionmoldshadrespectivepushrod.Thefreezingmaterialsweregetoutinthefirstcolorinjecting,buttheplasticpiecewasn
6、otknockout.Thefreezingmaterialsandinjectionpartwereknockoutinthesametimeinthesecondcolorinjecting.Themovinghalfandfixedhalfwereequippedwithconepreciselocatinglock,andtheinsertblocksonmovinghalfandfixedhalfwereequippedwithprecise-locating-locking,whichimprovedtheprecisionofthe
7、moldclosing.Eightsupportingcolumnsweredesignedtoincreasethestiffnessofthemold.Keywords:bi—colorplasticinjectionmold;moldstructuredesign;controlswitchfacepanel;ABS隨著我國(guó)汽車、通訊、電子、運(yùn)動(dòng)器材等行業(yè)的色料注射工位,為下一次注射做好準(zhǔn)備。雙色飛速發(fā)展,雙色或多色塑料制品如汽車車燈、手機(jī)外注射模是實(shí)現(xiàn)塑料雙色制品生產(chǎn)的重要組成部分,殼、工具手柄、按鍵、工藝品等的應(yīng)用也越來越廣泛其模具結(jié)構(gòu)
8、設(shè)計(jì)與普通注射模有一定的區(qū)別,筆者¨J。雙色注射成型是生產(chǎn)雙色塑料制品主要的成以控制開關(guān)面板雙色塑料件為例,分析說明雙色塑型工藝之一,它