多功能折叠衣架注塑模具设计

多功能折叠衣架注塑模具设计

摘要

注塑模具在现代生产中，是成型塑料制品的一种重要工艺装备，由于其具有对塑料的适应性广，注射成型的塑料制品的内在和外观质量好，生产效率高的优点。所以越来越引起人们的重视。本课题正是考虑到以上的因素，选择了注塑模具设计作为本次毕业设计课题。随着制造业和计算机软硬件的发展，模具已经得到了快速发展和广泛的应用，因此对各种塑料制品的模具设计具有重要的理论意义和实际应用价值。这也正是符合当前研究的热点和市场的需求，不论在科研还是实际生产中都有着深刻的现实意义

本论文详细论述了热塑性材料成型塑件时所用的整套注塑模具的设计过程，包括塑件的成型工艺，分型面的选择论证，浇注系统的设计、成型零件的尺寸计算、镶块的固定方式、脱模结构、推出机构、冷却系统以及排气系统等的设计。论证了成型塑件的方式为注塑成型，采用浇注系统推杆推出的方式推出制件的好处，以及整套模具采用标准模架CI型号的好处。由于本塑件两端有凹槽、两端侧孔采用斜导柱和弹簧配和、斜滑块同步抽芯机构使模具结构紧凑且节省材料，并详细解释了这种结构的特点及其创新所在。

关键词衣架底座；注塑模；模具结构；模架

Snap Bracket Plastic Injection Mold Design

Abstract

In the modern production of plastic injection mold, molded plastic products is an important process equipment, because of its wide adaptability of the plastic injection molding of plastic products inside and good appearance, high efficiency advantages. So more and more attention has been paid. This issue is taken into account the above factors, chosen as the second injection mold design graduation project. With manufacturing and computer hardware and software development, mold has been a rapid development and wide application, so all kinds of plastic products, mold design has important theoretical and practical value. This is consistent with current research focus and market demand, both in scientific research or the actual production are profound practical significance This paper discusses in detail the thermoplastic molding plastic Jian in with the whole set of injection mold design process, including the plastic parts of the molding Gongyi, parting surface choice argument, gating system design, forming part of the size calculation, inserts a fixed way , ejection structure, introduction agencies, cooling system and exhaust system design. Demonstrates the molding of plastic parts for the injection molding method, introduced by pouring system and launch putting the benefits of workpiece, and a standard set of mold mold A1 form of benefits. As one end of the plastic groove, convex sets, using oblique guide posts, inclined slide core pulling mechanism of the die simultaneously compact and material savings, and explained in detail the characteristics of this structure and the innovation lies.

Keywords Snaps bracket；Injection；Mold Structure；Mold

目录

摘要...................................................................................................................... I Abstract ............................................................................................................... II 第1章绪论 (1)

1.1 课题背景 (1)

1.2 国内外研究现状 (1)

1.2.1 国内方面 (1)

1.2.2 国外方面 (2)

1.3 课题研究的意义 (2)

第2章塑料工艺分析与模具方案确定 (3)

2.1 制件的分析 (3)

2.2 分析制品原材料的工艺性 (3)

2.3 分析制品的结构、尺寸精度和表面质量 (3)

2.4 模具方案的初步确定 (4)

2.5 选择分型面 (4)

2.6 本章小结 (4)

第3章注塑机的选择及浇注系统的设计 (5)

3.1 计算塑件的体积和重量 (5)

3.2 选择设备型号、规格、确定型腔数 (5)

3.3 确定型腔的布置 (6)

3.4 注射机注射量的校核 (7)

3.5 注射压力和锁模力的校核 (7)

3.6 注射机闭合高度和开模行程的校核 (8)

3.7 主流道设计 (8)

3.8 浇口套的选用 (9)

3.9 分流道的设计 (9)

3.10 浇口设计 (9)

3.11 冷料穴 (10)

3.12 本章小结 (10)

第4章推出机构与导向机构的设计 (11)

4.1 脱模力的计算 (11)

4.2 推杆的选定 (11)

4.2.1 圆形推杆直径计算 (11)

4.2.2 推杆的应力校核 (11)

4.2.3 确定顶出方式及顶杆位置 (12)