汽车发动机罩盖阀式热流道注塑模设计
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摘要
运用Mold?ow软件对汽车发动机罩盖塑料件成型进行了流动分析,对浇口数量和位置方案进行了对比分析;选择两点进胶方式,采用产品内表面进胶的倒装模具结构;对字母标记表面易产生的问题进行了分析并做了预防设计处理;采用滑块进胶结构和L型热流道连接浇口结构,巧妙地采用产品轮廓特征位置布置浇口,避免或减少浇口对产品表面的冲击痕、气痕等缺陷;采用一出一布局,模仁采用镶框结构,加工工艺性较好且成本低;采用顶块、斜顶、推管均衡布置,保证顶出受力均匀和产品表面质量,减少产品顶出缺陷;设计了合适的模具外形尺寸,匹配锁模力较为合理的注塑成型设备,以满足综合经济效益高的生产要求。经试模验证,模具结构合理,产品成型完整,质量达到设计要求。
The molding characteristic of automobile engine cover was analyzed by using Mold?ow software. The quantity and location scheme of gate were analyzed, the two gates scheme is the best. Two gates are located on the inner surface of parts.There exist some appearance issues on font surface,so design a useful scheme to resolve them. One gate structure is slider,another one uses L style hot runner. The gate location was designed according to contour feature,It can effectively avoid or reduce injection molding defects,which is caused by gate,such as impact mark,gas mark and so on. The mold just has 1 cavity,and the frame is insert design. This helps to reduce making cost while maintaining mold results. The part is subjected to a uniform thrust with pushing pipe,pushing block and angle ejecting. It can help to reduce the appearance defects and maintain part quality. The designed mold size is as small as possible,so the parts can be manufactured with small injection machine according to appropriate clamping force and get better economic bene?ts. This mold structure is quite reasonable,and it has been veri?ed by making prototype. These prototypes meet all the design requirements.
The molding characteristic of automobile engine cover was analyzed by using Mold?ow software. The quantity and location scheme of gate were analyzed, the two gates scheme is the best. Two gates are located on the inner surface of parts.There exist some appearance issues on font surface,so design a useful scheme to resolve them. One gate structure is slider,another one uses L style hot runner. The gate location was designed according to contour feature,It can effectively avoid or reduce injection molding defects,which is caused by gate,such as impact mark,gas mark and so on. The mold just has 1 cavity,and the frame is insert design. This helps to reduce making cost while maintaining mold results. The part is subjected to a uniform thrust with pushing pipe,pushing block and angle ejecting. It can help to reduce the appearance defects and maintain part quality. The designed mold size is as small as possible,so the parts can be manufactured with small injection machine according to appropriate clamping force and get better economic bene?ts. This mold structure is quite reasonable,and it has been veri?ed by making prototype. These prototypes meet all the design requirements.
引文
[1]申开智.塑料成型模具[M].第三版.北京:中国轻工业出版社,2013:251-340.Shen Kaizhi.Plastic molding mold[M].3rd ed.Beijing:China Light Industry Press,2013:251-340.
[2]王得胜,王会,苏瞧忠.基于Moldflow的机翼式离心风叶注塑模设计与制造[J].塑料,2015,44(3):64-67.Wang Desheng,Wang Hui,Su Qiaozhong.Plastic injection mold design and manufacture of wing-shape centrifugal fan blade based on moldflow analysis[J].Plastics,2015,44(3):64-67.
[3]王得胜,苏瞧忠.带二次顶出装置的吸尘器筒式分离器注射模设计[J].工程塑料应用,2014,42(11):73-76.Wang Desheng,Su Qiaozhong.Injection mould design with secondary ejection device for cylinder shape separator of vacuum cleaner[J].Engineering Plastics Application,2014,42(11):73-76.
[4]刘根深.汽车储物箱注射模设计[J].模具工业,2018,44(5):52-55.Liu Genshen.Design of injection mould for automobile storage tank[J].Die&Mould Industry,2018,44(5):52-55.
[5]黄鹏.基于LM-BP神经网络的汽车AB柱内饰板注塑模CAE优化分析[J].中国塑料,2018,33(7):137-145.Huang Peng.CAE optimization design of injection molding of automobile AB Column interior trim panel based on LM-BP neural network[J].China Plastics 2018,33(7):137-145.
[6]王臣松,秦亚军,陈治波.双色尾灯阀式浇口缺陷分析及解决措施[J].模具工业,2018,44(4):54-57.Wang Chensong,Qin Yajun,Chen Zhibo.Analysis and solution of valve gate defect for two colors tail lamp[J].Die&Mould Industry,2018,44(4):54-57.
[7]孙庆东,宋志波,池寅生,等.CAE技术在滚筒梳注塑模具设计中的应用[J].塑料科技,2016(8):70-74.Sun Qingdong,Song Zhibo,Chi Yinsheng,et al.Application of CAE technology in injection mold design of the roller comb[J].Plastics Science and Technology,2016(8):70-74.
[8]冯炳尧,韩泰荣,殷振海,等.模具设计与制造简明手册[M].上海:科学技术出版社,1995,251-434.Feng Bingyao,Han Tairong,Yin Zhenhai,et al.Concise manual for die design and manufacture[M].Shanghai:Science and Technology Press,1995,251-434.
[9]徐生.电磁治疗仪盖多侧孔特征抽芯机构及注塑模具设计[J].工程塑料应用,2018,46(3):87-93.Xu Sheng.Design of core pulling mechanisms with multi side hole feature and injection mould for electromagnetic therapy instrument cover[J].Engineering Plastics Application,2018,46(3):87-93.
[10]包荣华.汽车仪表板下部注射模设计[J].模具工业,2018,44(2):53-57.Bao Ronghua.Design of injection mould for automobile internal instrument panel[J].Die&Mould Industry,2018,44(2):53-57.
[11]沈言锦,刘海渔.基于PRO/E的鼠标底壳注塑模设计[J].工程塑料应用,2016,44(4):82-85.Shen Yanjin,Liu Haiyu.Mouse bottom shell injection mold design based on PRO/E[J].Engineering Plastics Application,2016,44(4):82-85.
[12]王得胜,王秉昱.汽车副仪表板注塑模设计[J].工程塑料应用,2017,45(10):76-81.Wang Desheng,Wang Bingyu.Design of injection mold for auxiliary console of automobile[J].Engineering Plastics Application,2017,45(10):76-81.
[13]孙丽丽,苏学满.基于MPI的汽车内置储物盒注塑模具优化设计[J].中国塑料,2018,32(4):125-131.Sun Lili,Su Xueman.Optimization design of injection molds of automobile built-in storage boxes based on MPI[J].China Plastics,2018,32(4):125-131.
[14]孙肖霞,唐友亮.多种抽芯机构脱模的护套注塑模设计[J].工程塑料应用,2018,46(3):82-86,116.Sun Xiaoxia,Tang Youliang.Design of injection mold with various pulling core demoulding mechanism for sheath[J].Engineering Plastics Application,2018,46(3):82-86,116.
[15]麻春英.基于CAD/CAE窄筋连接电脑电池薄壳件的注塑模具设计[J].塑料科技,2015,43(5):73-76.Ma Chunying.Design of the injection mold for laptop battery cover based on CAD/CAE[J].Plastics Science and Technology,2015,43(5):73-76.
[16]苏瞧忠,王得胜,沈吴杰.浇口对注塑件流痕的影响[J].中国塑料,2015,29(12):106-109.Su Qiaozhong,Wang Desheng,Shen Wujie.Influence of gates on flow marks of injection molded parts[J].China Plastics,2015,29(12):106-109.
[17]杨双华.轿车雾灯座注塑工艺CAE与成对模具设计[J].塑料工业,2018(3):61-66.Yang Shuanghua.CAE and Paired mold design of injection molding process for automobile fog lamp seat[J].China Plastics Industry,2018(3):61-66.
[18]苏瞧忠,王得胜.汽车轮罩塑件注射模具设计[J].机电工程技术,2014(5):103-105,179.Su Qiaozhong,Wang Desheng.Plastic mould design of automobile wheel cowling plastic parts[J].Mechanical&Electrical Engineering Technology,2014(5):103-105,179.
[2]王得胜,王会,苏瞧忠.基于Moldflow的机翼式离心风叶注塑模设计与制造[J].塑料,2015,44(3):64-67.Wang Desheng,Wang Hui,Su Qiaozhong.Plastic injection mold design and manufacture of wing-shape centrifugal fan blade based on moldflow analysis[J].Plastics,2015,44(3):64-67.
[3]王得胜,苏瞧忠.带二次顶出装置的吸尘器筒式分离器注射模设计[J].工程塑料应用,2014,42(11):73-76.Wang Desheng,Su Qiaozhong.Injection mould design with secondary ejection device for cylinder shape separator of vacuum cleaner[J].Engineering Plastics Application,2014,42(11):73-76.
[4]刘根深.汽车储物箱注射模设计[J].模具工业,2018,44(5):52-55.Liu Genshen.Design of injection mould for automobile storage tank[J].Die&Mould Industry,2018,44(5):52-55.
[5]黄鹏.基于LM-BP神经网络的汽车AB柱内饰板注塑模CAE优化分析[J].中国塑料,2018,33(7):137-145.Huang Peng.CAE optimization design of injection molding of automobile AB Column interior trim panel based on LM-BP neural network[J].China Plastics 2018,33(7):137-145.
[6]王臣松,秦亚军,陈治波.双色尾灯阀式浇口缺陷分析及解决措施[J].模具工业,2018,44(4):54-57.Wang Chensong,Qin Yajun,Chen Zhibo.Analysis and solution of valve gate defect for two colors tail lamp[J].Die&Mould Industry,2018,44(4):54-57.
[7]孙庆东,宋志波,池寅生,等.CAE技术在滚筒梳注塑模具设计中的应用[J].塑料科技,2016(8):70-74.Sun Qingdong,Song Zhibo,Chi Yinsheng,et al.Application of CAE technology in injection mold design of the roller comb[J].Plastics Science and Technology,2016(8):70-74.
[8]冯炳尧,韩泰荣,殷振海,等.模具设计与制造简明手册[M].上海:科学技术出版社,1995,251-434.Feng Bingyao,Han Tairong,Yin Zhenhai,et al.Concise manual for die design and manufacture[M].Shanghai:Science and Technology Press,1995,251-434.
[9]徐生.电磁治疗仪盖多侧孔特征抽芯机构及注塑模具设计[J].工程塑料应用,2018,46(3):87-93.Xu Sheng.Design of core pulling mechanisms with multi side hole feature and injection mould for electromagnetic therapy instrument cover[J].Engineering Plastics Application,2018,46(3):87-93.
[10]包荣华.汽车仪表板下部注射模设计[J].模具工业,2018,44(2):53-57.Bao Ronghua.Design of injection mould for automobile internal instrument panel[J].Die&Mould Industry,2018,44(2):53-57.
[11]沈言锦,刘海渔.基于PRO/E的鼠标底壳注塑模设计[J].工程塑料应用,2016,44(4):82-85.Shen Yanjin,Liu Haiyu.Mouse bottom shell injection mold design based on PRO/E[J].Engineering Plastics Application,2016,44(4):82-85.
[12]王得胜,王秉昱.汽车副仪表板注塑模设计[J].工程塑料应用,2017,45(10):76-81.Wang Desheng,Wang Bingyu.Design of injection mold for auxiliary console of automobile[J].Engineering Plastics Application,2017,45(10):76-81.
[13]孙丽丽,苏学满.基于MPI的汽车内置储物盒注塑模具优化设计[J].中国塑料,2018,32(4):125-131.Sun Lili,Su Xueman.Optimization design of injection molds of automobile built-in storage boxes based on MPI[J].China Plastics,2018,32(4):125-131.
[14]孙肖霞,唐友亮.多种抽芯机构脱模的护套注塑模设计[J].工程塑料应用,2018,46(3):82-86,116.Sun Xiaoxia,Tang Youliang.Design of injection mold with various pulling core demoulding mechanism for sheath[J].Engineering Plastics Application,2018,46(3):82-86,116.
[15]麻春英.基于CAD/CAE窄筋连接电脑电池薄壳件的注塑模具设计[J].塑料科技,2015,43(5):73-76.Ma Chunying.Design of the injection mold for laptop battery cover based on CAD/CAE[J].Plastics Science and Technology,2015,43(5):73-76.
[16]苏瞧忠,王得胜,沈吴杰.浇口对注塑件流痕的影响[J].中国塑料,2015,29(12):106-109.Su Qiaozhong,Wang Desheng,Shen Wujie.Influence of gates on flow marks of injection molded parts[J].China Plastics,2015,29(12):106-109.
[17]杨双华.轿车雾灯座注塑工艺CAE与成对模具设计[J].塑料工业,2018(3):61-66.Yang Shuanghua.CAE and Paired mold design of injection molding process for automobile fog lamp seat[J].China Plastics Industry,2018(3):61-66.
[18]苏瞧忠,王得胜.汽车轮罩塑件注射模具设计[J].机电工程技术,2014(5):103-105,179.Su Qiaozhong,Wang Desheng.Plastic mould design of automobile wheel cowling plastic parts[J].Mechanical&Electrical Engineering Technology,2014(5):103-105,179.