[1]伍晓宇,王金金,张会迎,等.注塑模具近随形高光面壳计算[J].深圳大学学报理工版,2012,29(No.2(095-188)):171-177.[doi:10.3724/SP.J.1249.2012.02171]
 WU Xiao-yu,WANG Jin-jin,ZHANG Hui-ying,et al.Computational formula for approximately conformal highlight shell of plastic injection mold[J].Journal of Shenzhen University Science and Engineering,2012,29(No.2(095-188)):171-177.[doi:10.3724/SP.J.1249.2012.02171]
点击复制

注塑模具近随形高光面壳计算()
分享到:

《深圳大学学报理工版》[ISSN:1000-2618/CN:44-1401/N]

卷:
第29卷
期数:
2012年No.2(095-188)
页码:
171-177
栏目:
自控精仪
出版日期:
2012-03-23

文章信息/Info

Title:
Computational formula for approximately conformal highlight shell of plastic injection mold
作者:
伍晓宇王金金张会迎彭太江梁雄
深圳大学机电与控制工程学院,深圳 518060
Author(s):
WU Xiao-yu WANG Jin-jin ZHANG Hui-ying PENG Tai-jiang and LIANG Xiong 
College of Mechatronics and Control Engineering, Shenzhen University, Shenzhen 518060, P.R.China 
Keywords:
plastics forming plastics molding injection molding heat transfer mold cavity highlight shell
分类号:
TQ 320.66
DOI:
10.3724/SP.J.1249.2012.02171
文献标志码:
A
摘要:
建立注塑模具近随形高光面壳厚度的计算方法.模拟分析注塑模具型腔表面曲率对传热的影响,利用Matlab拟合出型面曲率-温度关系公式;以平壁传热公式为基础,研究具有1维曲率、2维同向曲率及2维反向曲率等形状的型面,引入曲率影响系数,建立高光面壳厚度的计算公式与迭代算法.发现同时刻分别在高光面壳内外侧加热时,所达到温度的乘积均为一定值.将所得公式和算法应用于模具型腔表面,得出的近随形仿真结果表明,依据近随形高光面壳厚度计算方法得到的型腔表面温度分布误差小于3 ℃,低于工程中所要求的5 ℃以内的误差.实验证明,该算法合理,可以满足工程要求,为高光无痕注塑模具设计提供了简便实用的手段.
Abstract:
In order to determine the distance between heating channels and mold cavity more simply and accurately, a computational formula for approximately conformal highlight shell of plastic injection mold was established. The influence of the curvatures of plastic injection mold cavity surfaces on heat transfer was analyzed by simulation. A relative formula on cavity surface temperature with respect to curvature was simulated using Matlab. Then, on the basis of flat wall transient heat-transfer formula and setup of the curvature coefficient, the expression of the highlight shell thickness and its iterative algorithm were proposed for one-dimensional, two-dimensional same-direction and two-dimensional reverse-direction curvature’s mold cavity surfaces. The analysis results show that when the same highlight shell was heated respectively outside and inside at the same time, the product of the two cavity surface temperatures is always a fixed value. This value can be computed according to the heating time. No matter equidirectional or reverse, the second curvature’s magnitude has no influence on the heat transfer of the double-curvature highlight shell. But the second curvature’s presence has a significant effect. Finally,the formula was used on the given mold cavity surface and the simulation results were gained. Experimental results indicate that the temperature distribution error on the cavity surface is less than 3 ℃ and it is within the 5 ℃ error range. The formula is reasonable and can meet the mold design requirements. This can provide a powerful method for the design of weldless plastic injection mold.

参考文献/References:

[1] ZHAO Guo-qun, WANG Gui-long, LI Hui-ping, et al. Research and application of rapid heating cycle moulding technology[J]. Journal of Plasticity Engineering, 2009, 16(1): 191-194.(in Chinese)
赵国群, 王桂龙, 李辉平, 等. 快速热循环注塑技术的研究与应用[J]. 塑性工程学报, 2009, 16(1): 191-194.
[2] ZHANG Peng, CHENG Yong-qi, SONG Cai-fu. Rapid heat cycle moulding for high glossy product and its key technology[J]. Engineering Plastic Application, 2009, 37(4): 31-34.(in Chinese)
张鹏, 程永奇, 宋财福. 高光注射成型及其关键技术[J]. 工程塑料应用, 2009, 37(4): 31-34.
[3] WANG Gui-long, ZHAO Guo-qun, LI Hui-ping, et al. Steam-assisted rapid heat cycle moulding and simulation of temperature response of the mould[J]. Polymer Materials Science and Engineering, 2009, 25(8): 171-174.(in Chinese)
王桂龙, 赵国群, 李辉平, 等. 蒸汽辅助快速热循环注塑技术及模温响应模拟[J]. 高分子材料科学与工程, 2009, 25(8): 171-174.
[4] WU Xiao-yu, LIANG Xiong, LI Ji-bin, et al. Plastic weldless injection moulding of the local part with thin wall[J]. China Plastic Industry, 2009, 37(6): 44-46.(in Chinese)
伍晓宇, 梁雄, 李积彬, 等. 局部薄壁塑件的高光无痕注塑成型[J]. 塑料工业, 2009, 37(6): 44-46.

[5] WU Xiao-yu, LIANG Xiong, LI Ji-bin, et al. Energy-saving injection mould and process for weldless plastic parts[J]. China Plastics, 2009, 23(5): 110-112.(in Chinese)
伍晓宇, 梁雄, 李积彬, 等. 节能型无痕注塑模具及工艺[J]. 中国塑料, 2009, 23(5): 110-112.
[6] LI Xi-ping, ZHAO Guo-qun, GUAN Yan-jin, et al. Analysis and optimal design of heating and cooling process for rapid heating cycle injection mould[J].Journal of Plasticity Engineering, 2009, 16(1): 196-200.(in Chinese)
李熹平, 赵国群, 管延锦, 等. 快速热循环注塑模具加热与冷却过程分析及其结构优化设计[J]. 塑性工程学报, 2009, 16(1): 196-200.
[7] LU Zhong-liang, SHI Yu-sheng, LIU Jin-hui, et al. A global review of the design and manufacturing of conformal cooling channels in injection mould[J].China Mechanical Engineering, 2006, 17(S1): 165-169.(in Chinese)
鲁中良, 史玉升, 刘锦辉, 等. 注塑模随形冷却水道设计与制造技术概述[J]. 中国机械工程, 2006, 17(S1): 165-169.
[8] SHI Yu-sheng, WU Zhi-gang, WEI Qing-song, et al. Effects of conformal cooling channel on injection moulding and production efficiency[J]. Journal of Huazhong Univertity of Science and Technology Natural Science Edition, 2007, 35(3): 60-62.(in Chinese)
史玉升, 伍志刚, 魏青松, 等. 随形冷却对注塑成型和生产效率的影响[J]. 华中科技大学学报: 自然科学版, 2007, 35(3): 60-62.
[9] Dimla D E, Camilotto M, Miani F. Design and optimisation of conformal cooling channels in injection moulding tools[J]. Journal of Materials Processing Technology, 2005, 164/165: 1294-1300.
[10] SUN De-peng. Study on Numerical Simulation and Optimization of Process Parameters of Rapid Heating Cycle Moulding Process[D]. Jinan: Shandong University, 2009.(in Chinese)
孙德明. 快速热循环注塑成型过程数值模拟与工艺参数优化研究[D]. 济南: 山东大学, 2009.
[11] Incropera F P, DeWitt D P, Bergman T L, et al. Fundamentals of Heat and Mass Transfer[M]. 6th ed, GE Xin-shi, YE Hong, translate. Beijing: Chemical Industry Press, 2007: 168-169.(in Chinese)
Incropera F P, DeWitt D W, Bergman T L, 等. 传热和传质基本原理[M]. 第6版, 葛新石, 叶 宏, 译. 北京: 化学工业出版社, 2007: 168-169.

备注/Memo

备注/Memo:
Received:2011-03-17;Revised:2011-06-02;Accepted:2011-11-13
Foundation:National Natural Science Foundation of China(51175348)
Corresponding author:Professor WU Xiao-yu. E-mail: wuxy@szu.edu.cn
Citation:WU Xiao-yu, WANG Jin-jin, ZHANG Hui-ying, et al. Computational formula for approximately conformal highlight shell of plastic injection mold[J]. Journal of Shenzhen University Science and Engineering, 2012, 29(2): 171-177.(in Chinese)
基金项目:国家自然科学基金资助项目(51175348);广东省教育部产学研结合资助项目(2008B090500044))
作者简介:伍晓宇(1963-),男(汉族),深圳大学机电与控制工程学院教授、博士.E-mail:wuxy@szu.edu.cn
引文:伍晓宇,王金金,张会迎,等. 注塑模具近随形高光面壳计算[J]. 深圳大学学报理工版,2012,29(2):171-177.
更新日期/Last Update: 2012-03-28