基于CAE的智能马桶座盖注塑模具设计
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摘要
针对某智能马桶座盖要求外观质量好、尺寸精度高的特点,分析了其结构及工艺,在动、定模侧都需抽芯机构,并采用一模一腔结构。利用CAE软件分析了产品的气穴与翘曲变形的位置,采用热流道+冷流道相结合的浇注系统,使用优化后的大扇形浇口;在定模侧采用液压拔块抽芯机构;根据产品翘曲变形的位置,在动模侧运用直斜顶组合机构,以减少顶出时的产品变形。模具冷却系统设计合理,冷却效果良好,未与其它机构发生干涉,产品能够顺利脱模。实际生产证明,模具安全可靠,工作稳定,可实现自动化生产,为类似产品的模具设计提供了有益参考。
Aiming at the characteristics of a smart toilet seat cover with good appearance quality and high dimensional accuracy requirement,its structure and process were analyzed. The core pulling mechanism was needed on both sides of the moving and fixed mold,and the mold structure of one mold and one cavity was adopted. By using CAE software to analysis the position of air pockets and warping deformation of products,the gating system with hot runner and cold runner and the optimized large fanshaped gate were used. The hydraulic drawing block core-pulling mechanism was adopted in fixed mold. According to the location of warping deformation of product,the straight inclined top combination mechanism was used at the moving mold side to reduce the deformation of product during ejection. The cooling system design of mold is reasonable,the cooling effect is good,it does no interference with other mechanisms,and the product can be demoulded smoothly. The actual production proves that that the mold safety reliable,stable work,it can realize automatic production and provide a useful reference for the mold design of similar products.
Aiming at the characteristics of a smart toilet seat cover with good appearance quality and high dimensional accuracy requirement,its structure and process were analyzed. The core pulling mechanism was needed on both sides of the moving and fixed mold,and the mold structure of one mold and one cavity was adopted. By using CAE software to analysis the position of air pockets and warping deformation of products,the gating system with hot runner and cold runner and the optimized large fanshaped gate were used. The hydraulic drawing block core-pulling mechanism was adopted in fixed mold. According to the location of warping deformation of product,the straight inclined top combination mechanism was used at the moving mold side to reduce the deformation of product during ejection. The cooling system design of mold is reasonable,the cooling effect is good,it does no interference with other mechanisms,and the product can be demoulded smoothly. The actual production proves that that the mold safety reliable,stable work,it can realize automatic production and provide a useful reference for the mold design of similar products.
引文
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[2]李代叙.Moldflow模流分析从入门到精通[M].北京:清华大学出版社,2012:46.Li Daixu.Moldflow analysis from entry to the master[M].Beijing:Tsinghua University Press,2012:46.
[3]陈开源.电器外壳注塑模冷却系统CAE优化分析与设计[J].塑料科技,2016,44(7):78-81.Chen Kaiyuan.CAE optimization analysis and design on injection mold cooling system of electrical equipment shell[J].Plastics Science and Technology,2016,44(7):78-81.
[4]杨志红,海争平.电动汽车电池盖多面及双层滑块脱模机构注塑模设计[J].塑料,2017,46(2):98-101.Yang Zhihong,Hai Zhengping.Design of injection mold for the new energy automotive battery cover with double layer sliding block ejection mechanism[J].Plastics,2017,46(2):98-101.
[5]杨素华,肖国华,卞平.轴套盖内环槽抽芯机构及注塑模具结构设计[J].中国塑料,2017,31(11):130-136.Yang Suhua,Xiao Guohua,Bian Ping.Structure design of corepulling mechanisms and injection moulds for axle covers[J].China PlasticS,2017,31(11):130-136.
[6]陈剑玲,李昌雪.汽车仪表盘盖侧抽热流道注塑模设计[J].现代塑料加工应用,2014,26(3):71-75.Chen Jianling,Li Changxue.Design of injection mold with sideslider and hot runner system for car cashboard cover[J].Modern Plastics Processing and Applications,2014,26(3):71-75.
[7]齐小杰.塑料成型工艺及模具设计[M].北京:机械工业出版社,2012:12-36.Qi Xiaojie.Plastic forming technology and mould design[M].Beijing:Mechanical Industry Press,2012:12-36.
[8]许傲,黄力.医用接插头前模四面抽芯脱模注塑模具设计[J].塑料,2017,46(2):110-113.Xu Ao,Huang Li.Design of injection mould for the medical plug with four sides extracting[J].Plastics,2017,46(2):110-113.
[9]王颖,池成忠,刘新会,等.汽车手柄定模滑块模具结构设计[J].模具工业,2011,37(6):56-58.Wang Ying,Chi Chengzhong,Liu Xinhui,et al.Mould structure with slide block in the fixed half for automobile handle[J].Die&Mould Industry,2011,37(6):56-58.
[10]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.Sun Xiaoxia,Tang Youliang.Mould structure with slide block in the fixed half for automobile handle[J].Engineering Plastics Application,2018,46(3):82-86.
[11]张建卿.洗涤机屏蔽盖双滑动三次抽芯注塑模脱模机构设计[J].塑料科技,2016,44(1):87-89.Zhang Jianqing.Demoulding mechanism design for the injection molding of washing machine shield cover with thrice slide-drawing and double T-grooves[J].Plastics Science and Technology,2016,44(1):87-89.
[12]曹争.自动抽液瓶盖抽芯机构及模具设计[J].模具工业,2017,43(5):47-51.Cao Zheng.The core-pulling mechanism of automatic pumping cap and the mould design[J].Die&Mould Industry,2017,43(5):47-51.
[13]曹亚玲.内外侧多向抽芯的化妆盒上盖注塑模具设计[J].工程塑料应用,2016,44(12):76-79.Cao Yaling.Design of injection mold for powder box top-cover with internal and external multidirections core-pulling[J].Engineering Plastics Application,2016,44(12):76-79.