摘要
电解槽盖外形和内部有很多不规则的特征,四周内侧存在卡扣,内部可用空间狭小,使得制品在注塑成型时带来脱模困难。针对此问题,设计了一种新型内抽芯复合机构。即三轮传动、二次变向及具有导滑槽、齿条的内侧抽芯装置;三次传动变向锥齿轮与具有支承导套且上下侧面各开一段不同模数齿条的组合传动装置;齿轮与齿条配合的动力装置。运用Moldflow软件对注塑模具的浇注系统和冷却系统优化设计,并以最大残余应力为评价质量的指标,结合正交试验、极差分析和方差分析,得出最佳注塑工艺参数组合。注塑模具的创新性设计和运用Moldflow对浇注系统和冷却系统的辅助设计,为同类塑件的注塑模具设计提供了有益参考。
There are many irregular features in the shape and interior of the electrolytic cell cover.There are four buckles on the inner side of the cap.The inner space of the electrolytic cell cover is small,which makes it difficult for the product to be demolded during injection molding.Aiming at this problem,a new type of compound inner core-pulling mechanism is designed.The mechanism includes an inner core-pulling device,a combined transmission device and a power device.There is an inner core and three gears in the inner core-pulling device.The inner core has a guide groove and a rack.The gears can transfer force and change the direction of force two times.There are several bevel gears and rack in the combined transmission device.The gears can transfer force and change the direction of the force three times.There is a guide sleeve on the rack and the upper and lower sides of the rack have different modules.The power device is composed of gear and rack.Moldflow software is used to optimize the gating system and cooling system of injection mold.The maximum residual stress is taken as an index for evaluating the quality.Combined with orthogonal test,range analysis and variance analysis,the best combination of injection process parameters is obtained.The design of the mold structure is innovated.Moldflow is used to design gating system and cooling system.The application of mold design and Moldflow provides a useful reference for the injection mold design of similar plastic parts.
作者
李赛
范希营
黄海跃
曹艳丽
LI Sai;FAN Xiying;HUANG Haiyue;CAO Yanli(School of Mechanical and Electrical Engineering,Jiangsu Normal University,Xuzhou 221116)
出处
《制造技术与机床》
北大核心
2019年第8期144-149,共6页
Manufacturing Technology & Machine Tool
基金
国家自然科学基金资助项目(51475220)
江苏省产学研前瞻性联合研究项目(BY2016028-02)
江苏师范大学研究生科研创新计划项目(2018YXJ162)
徐州市科技计划资助项目(KC18239)
关键词
内侧抽芯
模具结构
模流分析
极差分析
方差分析
inner core-pulling
mold structure
moldflow
range analysis
variance analysis
