带有内外壁特殊脱模机构的摄像机支座多板式模具设计
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摘要
结合圆柱状摄像机支座塑件内、外壁不同特征的脱模需要,设计了一种四板式三次开模、三次顶出冷流道注塑模具。针对塑件外壁侧凹特征,应用位于动模一侧的先抽芯杆驱动定模滑块进行先抽芯脱模;针对外壁采用哈弗滑块进行抽芯脱模。针对内壁的双层内螺纹的脱模,应用了一种复合式内收式滑块机构进行脱模,通过模板的开启及顶出板的顶出,分别驱动机构的中央型芯及2组共6个滑块分两次来实现内螺纹的内收抽芯脱模,6个滑块的成型部分拼合成塑件内螺纹的整环螺纹,其抽芯动作分为三步,最终通过第三次顶出板推动动模推板将塑件从上型芯上完全顶出脱模。
Combined with the demoulding requirements of different characteristics for the inner and outer walls of cylindrical camera pedestal plastic parts,a four plate cold runner injection mould with three opening and ejection was designed. According to the concave characteristics of the outer wall,the sliding block of the mould driven by the ?rst core-pulling rod on one side of the moving mould was used for demoulding the concave characteristics ?rst,Half slider was adopted for core extraction and mould release of the outer wall. For the demoulding of the double layer internal thread demoulding of inner wall,a kind of compound adduction slider mechanism was used for demoulding,through template opening and ejection plate ejecting,the central core of the mechanism and a total of six slide blocks in two groups were drove respectively to realize the adduction core-pulling demoulding of the internal thread at twice. Forming parts of the six sliding blocks composed the whole inner thread of the plastic part,the core pulling actions was divided three steps. Finally,the moving mould pushing plate was pushed by the third ejection plate for completing the ejection of the plastic part from the upper core.
Combined with the demoulding requirements of different characteristics for the inner and outer walls of cylindrical camera pedestal plastic parts,a four plate cold runner injection mould with three opening and ejection was designed. According to the concave characteristics of the outer wall,the sliding block of the mould driven by the ?rst core-pulling rod on one side of the moving mould was used for demoulding the concave characteristics ?rst,Half slider was adopted for core extraction and mould release of the outer wall. For the demoulding of the double layer internal thread demoulding of inner wall,a kind of compound adduction slider mechanism was used for demoulding,through template opening and ejection plate ejecting,the central core of the mechanism and a total of six slide blocks in two groups were drove respectively to realize the adduction core-pulling demoulding of the internal thread at twice. Forming parts of the six sliding blocks composed the whole inner thread of the plastic part,the core pulling actions was divided three steps. Finally,the moving mould pushing plate was pushed by the third ejection plate for completing the ejection of the plastic part from the upper core.
引文
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[2]杨安,董扬德,胡宏伟,等.法兰盖滑块脱模机构及注塑模具设计[J].工程塑料应用,2017,45(10):82-86.Yang An,Dong Yangde,Hu Hongwei,et al.Design of slider demoulding mechanism and injection mold for flange cover[J].Engineering Plastics Application,2017,45(10):82-86.
[3]李振宇.多种抽芯机构脱模的护帽注塑模设计[J].塑料科技,2015,43(11):82-86.Li Zhenyu.Design of injection mould for protective cap with various pulling core demoulding mechanism[J].Plastics Science and Technology,2015,43(11):82-86.
[4]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.
[5]路英华,肖国华,应欣臻,等.侧边滑块两边内收抽芯脱模机构与注塑模具设计[J].模具技术,2017(1):8-13.Lu Yinghua,Xiao Guohua,Ying Xinzhen,et al.The design of ejection mechanism with both sides of the slider and the injection mould[J].Die and Mould Technology,2017(1):8-13.
[6]周铭杰.滑块设置推出机构的注塑模设计[J].中国塑料,2013,27(5):100-103.Zhou Mingjie.Design of injection moulds with ejection mechanism set in slider block[J].China Plastics,2013,27(5):100-103.
[7]贺柳操,肖国华,卞平.壶体哈弗滑块驱动二次滑块和二次斜顶机构注塑模具设计[J].中国塑料,2018,32(10):132-137.He Liucao,Xiao Guohua,Bian Ping.Design of injection mould with the second sliding and second inclined roof mechanism driven by Half slide block of pot body[J].China Plastics,2018,32(10):132-137.
[8]温瑞,肖国华.吸尘器开关扣盖复合式二次斜顶脱模机构及其注塑模设计[J].工程塑料应用,2016,44(12):85-91.Wen Rui,Xiao Guohua.Design for compound second inclined ejecting mechanism and injection mould of vacuum cleaner switch cover[J].Engineering Plastics Application,2016,44(12):85-91.
[9]龙家钊.成型冷却水箱接头的强制脱模结构设计[J].模具工业,2014,40(12):47-49.Long Jiazhao.Design of forced demoulding structure for forming cooling water box connecting joint[J].Die&Mould Industry,2014,40(12):47-49.
[10]许傲.斜度头洗发液瓶盖脱模机构及模具设计出[J].塑料,2017,46(4):102-105.Xu Ao.Demoulding mechanism and the mould design for a shampoo bottle head cover[J].Plastics,2017,46(4):102-105.
[11]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.
[12]吴国献,汪峰,乐振土.保健饮品瓶盖叠层注塑模结构设计[J].模具技术,2018(2):18-21.Wu Guoxian,Wang Feng,Le Zhentu.A design of laminated injection mould for a health drink bottle cap[J].Die and Mould Technology,2018(2):18-21.