基于CAE分析的转盘斜齿轮自润滑脱模机构模具结构设计
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摘要
针对搅碎机转盘带齿轮塑件的成型需要,运用计算机辅助工程(CAE)辅助分析和UG三维设计手段设计了塑件的一模两腔布局的六板模点浇口模具。为实现塑件的自动化注塑生产,采用模架5次分型打开和1次哈弗滑块分型打开的顺序动作配合,来实现塑件的自动化脱模。哈弗滑块机构设计中,改进了传统的前模哈弗滑块结构方式,通过在哈弗滑块下方设置限位钩形式,来保证哈弗滑块机构的两个半边滑块体同步实施对塑件外壁内凹倒扣的侧分型脱模。为实现塑件内壁斜齿特征在型芯上能自润滑旋转脱模,动模一侧的两次顶出机构分两次来实现塑件的完全脱模,从而,保证了塑件自动化注塑生产的顺利进行。模具结构设计合理,机构构思精巧,可为同类塑件的注塑生产提供有益借鉴。
To meet the requirements of the formation of the pinion parts in the rotary disk of crushing machine, a CAE-aided analysis and a UG 3 D design method were adopted to design the six-plate die point gate structured mold with one mold and two cavities. To realize the automotive production of injection-molded plastic parts, the mold structure was design by employing a five-point-open-type mold base and a one-half-open slider to perform the automatic demolding of plastic parts. In the case of mechanism design for the half slider, the traditional structure of half slider was modified to set a limiting hook below the half slider to ensure that two side slide blocks in the half slider mechanism could synchronously complete demolding within the plastic pieces of the outer wall on the side of the concave mould. Moreover, to realize the lining plastic helical characteristics on the core self-lubricating rotating demolding, the dynamic model on the side of twice ejection device performed two actions to complete demolding for the plastic parts. This could keep a good turn of the automotive production for injection-molded parts. The mould structure designed by this work is reasonable, and the mechanism is ingenious, which can provide a beneficial reference for the same type of injection molded parts.
To meet the requirements of the formation of the pinion parts in the rotary disk of crushing machine, a CAE-aided analysis and a UG 3 D design method were adopted to design the six-plate die point gate structured mold with one mold and two cavities. To realize the automotive production of injection-molded plastic parts, the mold structure was design by employing a five-point-open-type mold base and a one-half-open slider to perform the automatic demolding of plastic parts. In the case of mechanism design for the half slider, the traditional structure of half slider was modified to set a limiting hook below the half slider to ensure that two side slide blocks in the half slider mechanism could synchronously complete demolding within the plastic pieces of the outer wall on the side of the concave mould. Moreover, to realize the lining plastic helical characteristics on the core self-lubricating rotating demolding, the dynamic model on the side of twice ejection device performed two actions to complete demolding for the plastic parts. This could keep a good turn of the automotive production for injection-molded parts. The mould structure designed by this work is reasonable, and the mechanism is ingenious, which can provide a beneficial reference for the same type of injection molded parts.
引文
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[13] 郑爱权.多特征脱模机构与模板开闭控制机构设计[J].塑料,2017,46(6):52-56. ZHENG A Q. Design of Multi-feature Demoulding Mechanism and Template Opening and Closing Control Mechanism[J]. Plastics,2017,46(6):52-56.
[2] 宋志平.基于CAE技术的防爆电器插头注塑模浇注系统优化设计[J].工程塑料应用,2013,41(11):74-77. SONG Z P. Optimum Design of Running System of Explosion Proof Electric Apparatus Plug Injection Mold Based on CAE[J].Engineering Plastics Application,2013,41(11):74-77.
[3] 吕焕培,涂晶洁.基于Moldflow的MP4塑料外壳浇注系统优化设计[J].塑料,2013,42(3):96-99. LYU H P, TU J J. Optimal Design of Gating System of MP4 Plastic Shell with Moldflow[J]. Plastics,2013,42(3):96-99.
[4] 林权.基于 Moldflow 塑料弯管注塑模浇注与冷却系统优化[J].佳木斯大学学报:自然科学版,2015,33(1):117-119. LIN Q. Optimization of Plastic Bend Tube Injection Mold Pouring and Cooling System with Moldflow[J].Journal of Jiamusi University (Natural Science Edition),2015,33(1):117-119.
[5] 许傲.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 A. Design of Four-side Core-pulling and Demoulding Injection Mold for Front Mold of Medical Connector[J]. Plastics,2017,46(2):110-113.
[6] 贺柳操,肖国华,卞平.IPad支架联动抽芯脱模机构及注塑模具设计[J].中国塑料,2017,31(12):117-123. HE L C, XIAO G H, BIAN P. Design of Demolding Mechanism and Injection Molds for iPad Brackets[J]. China plastics,2017,31(12):117-123.
[7] 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 A. Demoulding Mechanism and Mold Design of Inclined Head Shampoo Bottle Cap[J]. Plastics,2017,46(4):102-105.
[8] 张维合.LED灯座强制脱模注塑模具设计[J].现代塑料加工应用,2017,29(2):51-54. ZHANG W H. Design of Forced Release Injection Mould for LED Socket[J]. Modern Plastics Processing and Applications,2017,29(2):51-54.
[9] 杨安,肖国华.汽车油封盖内螺纹脱模机构及注塑模设计[J].工程塑料应用,2015,41(4):68-72. YANG A, XIAOG H. Design of Car Oil Seal Cover Internal Thread Demoulding Mechanism and Injection Mould[J]. Engineering Plastics Application,2015,41(4):68-72.
[10] 路英华,肖国华.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,2017,0(1):8-13. LU Y H, XIAO G H.The Design of Ejection Mechanism with Both Sides of the Slider and the Injection Mould[J].Die and Mould Technology,2017,0(1):8-13.
[11] 王怀奥.电饭煲注塑模具自动脱模机构及控制机构设计[J].中国塑料,2017,31(9):137-144. WANG H A. Design of Automatic Demoulding Mechanisms and Control Mechanism for Injection Molds of Rice Cookers[J]. China plastics,2017,31(9):137-144.
[12] 杨志红.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 Z H. Design of Injection Mold for Multi-side and Double-layer Slider Demoulding Mechanism of Battery Cover for Electric Vehicles[J]. Plastics,2017,46(2):98-101.
[13] 郑爱权.多特征脱模机构与模板开闭控制机构设计[J].塑料,2017,46(6):52-56. ZHENG A Q. Design of Multi-feature Demoulding Mechanism and Template Opening and Closing Control Mechanism[J]. Plastics,2017,46(6):52-56.