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塑料水杯注射模设计论文[带图纸].doc

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塑料水杯注射模设计论文[带图纸].doc

哈尔滨工业大学华德应用技术学院毕业设计(论文)I摘要本论文简要介绍了模具在现代工业中的地位,我国模具工业的现状,模具的分类和占有量。综述了国内外模具的现状及其发展趋势。根据塑料现有的设计计算资料及已知的设计参数,确定了塑料水杯注射模总体设计方案。对塑料杯水杯的工艺性能进行了分析,注射机的选择、分型面的确定、型腔数目的确定、成型零件的设计、浇注系统的设计、脱模机构的设计。根据计算结果最后完成了塑料水杯注射模结构设计。关键词注射成型工艺浇注斜滑块哈尔滨工业大学华德应用技术学院毕业设计(论文)IIAbstractThetheoryisdividedintotwopartsPartIabriefintroductionofmoldpresentsituationandfutureindustrytrends.Secondly,analysisofprocessworkpiececarriedouttodeterminetheoverallprogramofthemolddesign.Accordingtoplasticmolddesignmanualandtherelevantexperiencenecessarycalculationformula,accordingtocalculationsusetheinjectionmachinefurthercompletedtheselectionofstandardpartsandnonstandardpiecesofdesign.Finally,thecompleteddesignoftheoverallstructureofthemold.PartIIHTB3600injectionmachineaccordingtosomeparametersoftheplasticsinjectionmachinepartsscrew,screwhead,cylinder,connectingbodyandthenozzlebarreldesign.Firstinjectionmachinescrew,screwheaddesigncalculationsandcheckingtheirstrength,followedbythelongerbarrel,barrelbodyandnozzleconnectiondesigncalculations,andfinaldesignofinjectionmachineplasticsparts.KeywordsinjectionmoldplasticpackagingboxesinjectionmachineplasticspartsHDPE.哈尔滨工业大学华德应用技术学院毕业设计(论文)III目录摘要......................................................................................................IAbstract..............................................................................................II第1章绪论.....................................................................................11.1课题背景.................................................................................11.1.1模具工业在国民经济中的地位......................................11.1.2我国模具工业的现状................................................21.2模具的分类和占有量.........................................................41.3世界五大塑料生产国的产能状况.....................................51.4我国模具技术的现状及发展趋势.....................................81.5毕业设计的主要研究目的及内容.....................................91.5.1设计目的....................................................................91.5.2设计内容....................................................................91.6本章总结.............................................................................9第2章塑料制件材料的分析..................................................................112.1塑料的选择.......................................................................112.2PP塑料的特性..................................................................112.2.1PP塑料的一般性能.................................................112.2.2PP塑料的力学和热学特性.....................................122.2.3PP塑料的注射成型特点.........................................122.3塑件体积和质量...............................................................132.4本章总结...........................................................................15第3章注射机的选择...............................................................................163.1注射模具与注射机的关系...............................................163.2选择注射机.......................................................................163.3注射机基本参...................................................................163.4注射量的校核...................................................................173.5锁模力的校核...................................................................183.6定位环尺寸校核...............................................................193.7模具外形尺寸校核...........................................................193.8模具厚度校核...................................................................193.9模具安装尺寸校核...........................................................19哈尔滨工业大学华德应用技术学院毕业设计(论文)IV3.10开模行程校核......................................................................203.11本章小结..............................................................................20第4章塑料制件的设计...........................................................................214.1塑件的尺寸和精度...........................................................214.1.1塑料的尺寸..............................................................214.1.2塑件的尺寸精度......................................................214.1.3塑料制件表面质量..................................................234.2塑料制件的结构设计.......................................................234.2.1脱模斜度..................................................................234.2.2壁厚..........................................................................244.3本章小结...........................................................................25第5章注射模结构设计...........................................................................265.1概述...................................................................................265.2分型面的设计...................................................................265.3排气槽的设计...................................................................275.4型腔数目的确定...............................................................275.5成型零件结构设计...........................................................285.5.1凹模结构设计..........................................................295.5.2凸模结构设计..........................................................295.5.3导柱和导套结构设计..............................................305.6浇注系统设计...................................................................305.6.1主流道设计..............................................................305.6.2浇口的确定..............................................................325.7导向机构设计...................................................................345.7.1导柱的设计..............................................................345.7.2导套的设计..............................................................355.8顶出系统设计...................................................................365.8.1顶出机构..................................................................365.8.2脱模力的计算..........................................................385.9温度调节系统设计...........................................................405.9.1温度调节对塑件质量的影响..................................405.9.2对温度调节系统的要求..........................................405.9.3冷却系统设计..........................................................41哈尔滨工业大学华德应用技术学院毕业设计(论文)V5.10本章结论..............................................................................41第6章模具零部件工作尺寸设计.........................................................426.1零部件尺寸.......................................................................426.2凹模工作尺寸计算...........................................................426.3凸模工作尺寸的计算.......................................................436.4本章小结...........................................................................44结论.................................................................................................................45致谢.................................................................................................................46参考文献........................................................................................................47

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