1、 第 1 页 共 38 页 毕 业 设 计 （ 论 文 ）毕 业 设 计 （ 论 文 ） （20142014 届）届） 题题 目目 翻盖注射模设计翻盖注射模设计 学学 生生 二二一四一四年年五五月月 I 翻盖注射模设计翻盖注射模设计 摘要：摘要：本课题主要目标是设计一需要侧抽芯机构的翻盖注射模具。首先对塑件进行工艺 性分析，通过对塑件材料，外形等相关因素的分析确定模具设计方案。选择模具的浇注 系统和顶出机构。设计的关键是侧抽芯机构的设计。由于采用一模四腔，需要八个侧抽 机构，且型芯、型腔分布较复杂，但塑件侧抽芯距离较短，所以本设计采用了一种肘杆 式的抽芯方案， 同时完成对模具内部塑件两侧的侧抽
2、。 设计涵盖了模具设计的所有结构， 包括：模具的型腔结构、型芯的结构、导向机构、推出机构、浇注系统、排气系统、模 温调节系统等，还包含有，如：动模型芯、定模型芯等主要零部件加工工艺要求。正确 选择注射机，并完成对开模行程、注射压力、最大注射量、锁模力的校核。正确选择模 架，校核推出行程。 关键词：关键词：翻盖；注射模；侧抽芯。 II The design of the injection mould for cover Abstract:The main objective of this project is to design a mould for cover with side cor
3、e-pulling mechanism. Firstly, manufacturability analysis of plastic parts.Through the analysis of appearance and other related factors of plastic of material to determine the scheme of mold design.Select the mould gating system and ejection mechanism.The key to the design is to the design of side co
4、re-pulling mechanism.With one module and four cavities and need eight side pumping mechanism. The distribution of core and cavity is complex.For the distance of side core-pulling of plastic pieces is short,So for this project we chose a link mechanism as side core-pulling mechanism.At the same time
5、it can complete the the side drawing of mold plastic parts on both sides.The design covers all structure of mold design, including: the cavity structure, the molds core structure, guide mechanism, ejection mechanism, gating system,exhaust system, mold temperature regulating system, Also it contains,
6、 such as:oblique pin, block, the wedge block, dynamic model of the core,fixed mold core,guide pillar the guide sleeve, and other major parts processing requirements.Make the correct choice of injection machine, and complete the check on the opening stroke, injection pressure, injection volume and maximum clamping force. And make the correct choice of frame, check out travel. Key words: Cover
