手机保护套模内热切模具设计

doi:10.19491/j.issn.1001-9278.2020.04.015

中国塑料 ›› 2020, Vol. 34 ›› Issue (4): 90-95.DOI: 10.19491/j.issn.1001-9278.2020.04.015

手机保护套模内热切模具设计

王鑫¹, 杜林芳², 蔡龙飞¹, 张驰¹

^1.河南工程学院机械工程学院，郑州 451191
^2.河南机电职业学院机械工程学院，郑州 451191

收稿日期:2019-07-14 出版日期:2020-04-26 发布日期:2020-04-26

Mold Design for Mobile Phone Cases Based on Hot⁃cutting In⁃mold

Xin WANG¹, Linfang DU², Longfei CAI¹, Chi ZHANG¹

^1.Mechanical Engineering College, Henan University of Engineering, Zhengzhou 451191, China
^2.Mechanical Engineering College, Henan Mechanical and Electrical Career College, Zhengzhou 451191，China

Received:2019-07-14 Online:2020-04-26 Published:2020-04-26

摘要/Abstract

摘要：

针对传统冷流道模具需要人工去除浇注系统凝料和冷切浇口技术效果不佳的现状，以某智能手机保护套为例，设计了具有热切浇口功能的手机保护套模具。首先根据产品搭接侧浇口的结构特点，设计了能够将浇口切除干净，且运动准确的切刀装置，并利用有限元分析方法确立了合适的进刀时间和驱动油缸。然后设计了合理的顶出和冷却机构，保证产品和浇注系统凝料在分离冷却后分别被安全顶出。

关键词: 浇口, 热切, 切刀, 驱动油缸

Abstract:

Aiming at the current situation that the traditional cold runner mold requires the manual removal of freezing materials in the gating system and the poor technical effect of cold?cutting gate, a mobile phone case was taken as an example to design a injection mold for the mobile phone case with a hot?cutting gate function. According to the structural characteristics of the lapping and side gate, an accurate motion cutting device was designed to ensure the clean gate cutting, and then a drive cylinder with appropriate infeed time was established by the finite element analysis method. Moreover, a reasonable ejector and cooling mechanism were designed to ensure the product and gating system ejected safely after separation and cooling.

Key words: gate, hot?cutting, cutter, drive cylinder

中图分类号:

TQ 320.66

王鑫, 杜林芳, 蔡龙飞, 张驰. 手机保护套模内热切模具设计[J]. 中国塑料, 2020, 34(4): 90-95.

Xin WANG, Linfang DU, Longfei CAI, Chi ZHANG. Mold Design for Mobile Phone Cases Based on Hot⁃cutting In⁃mold[J]. China Plastics, 2020, 34(4): 90-95.

图/表 15

图1 冷切和热切浇口效果对比

Fig.1 Effects comparison of cold?cutting gate and hot?cutting one

图2 塑件结构

Fig.2 Plastic structure

图3 型腔布局

Fig.3 Cavity layout

图4 模仁结构

Fig.4 The structure of the mold core

图5 浇注系统设计

Fig.5 Gating system design

图6 热切系统

Fig.6 Hot?cutting system

图7 时序控制器

Fig. 7 Timing controller

图8 切刀装置

Fig.8 Cutter device

图9 网格分析模型

Fig. 9 Mesh analysis model

图10 填充时间分析

Fig. 10 Fill time analysis

图11 产品浇口处压力分析

Fig.11 Pressure analysis at the gate of the product

图12 顶出机构设计

Fig.12 Ejection mechanism design

图13 冷却管道分布方式

Fig.13 Cooling pipe distribution

图14 组合装配图

Fig.14 Combined assembly drawing

图15 剖视装配图

Fig.15 Cross?sectional assembly drawing

参考文献 6

1	徐昌煜. 注射成型过程中热流道、模内自动切除大浇口和随形水路冷却的应用和效益[J].日用电器,2017,40(11):19⁃23.
	XU C Y. Application and Benefit of Hot Runner, In⁃mold⁃de⁃large⁃gating, and Conformal Channel Cooling During Injection Molding [J]. Electrical Appliances, 2017,40(11):19⁃23.
2	陈晓东, 陶永亮. 模内热切技术的推广介绍[J]. 橡塑技术与装备, 2017, 43(18):14⁃17.
	CHEN X D, TANG Y L. Promotion and Introduction of Hot Cut in Mold[J].China Rubber/Plastics Technology and Equipment, 2017, 43(18):14⁃17.
3	刘宝钊,李斐,王艳萍，等. 基于UG的注塑模具分型过程探讨[J]. 塑料科技, 2012, 40(8):80⁃83.
	LIU B Z, LI F, WANG Y P, et al. Discussion on Injection Mold Parting Process Based on UG [J]. Plastics Science and Technology, 2012, 40(8):80⁃83.
4	孙国强.小米充电宝前后盖注塑模具浇注系统模流分析及参数优化[D]. 天津：天津大学, 2017.
5	黄能会. 液压机构在注塑模具中的应用[J]. 机床与液压, 2018, 46(10):104⁃105.
	HUANG N H. Application of Hydraulic Mechanism in Injection Molding[J]. Machine Tool & Hydraulics, 2018, 46(10):104⁃105.
6	曹驰,郝远,刘洪军,等. 注塑模抽芯油缸的选取和使用[J]. 模具技术, 2008, (1):39⁃42.
	CAO C, HAO Y, LIU H J, et al. Selecting and Using of Loose Core Hydrocylinder in Injection Mold[J]. Die and Mould Technology, 2008, (1):39⁃42.

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手机保护套模内热切模具设计

Mold Design for Mobile Phone Cases Based on Hot⁃cutting In⁃mold

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