中国的模具工业作为一个新型且独立的制造业，正处于快速发展阶段，未来模具工业发展前程极宽广。21世纪以来，各个行业都得到了十分高速的发展，在此之中，模具行业根据市场的实际情况以及各个商品的需求，迅速孕育而生并脱颖而出。本文重点陈诉的是热水袋塞盖的注塑模具设计。 本文设计的塑件为热水袋塞盖，要求结构简单，并且带有小孔和外螺纹，大批量的生产，所以生产时要研讨出成本最少的方案。塞盖涉及的精度不高，塑件外表可以有分型面痕迹。综上情况，该设计没有选用齿轮、齿条自动脱螺纹的构造，而是选用了斜导柱带动侧滑块使之注塑成型。此塞盖选用一模两腔三板式，规划了两个分型构造，进料用点浇口，顶管式的顶出装置，瓣合式的构造，并用斜导柱带动侧滑块分型。根据上边所陈诉的元素，设计的子详细方案在接下来文章有详细的说明和验证。 塞盖塑件是一模两腔且左右对称式结构，为了缩短周期，降低生产难度，选用四个一模一样的滑块组成该结构。这样设计使得模具构造简单，分布均匀，有益于加工。 关键词：模具、塑件、点浇口、塑件、斜导柱 Abstract The moldi
ng trade of Chi
na is a
n i
ndepe
nde
nt a
nd late-model ma
nufacturi
ng, it is i
n a fast developi
ng stage very much,its developme
nt prospect is very vast.The future of the mold i
ndustry is very broad.Si
nce twe
nty-first Ce
ntury, all i
ndustries have developed at a very high speed,i
n this case, accordi
ng to the actual situatio
n of the market as well as the
needs of various commodities,mould i
ndustry quickly
nurtured a
nd bor
n, a
nd sta
nd out.This paper mai
nly i
ntroduces the desig
n of i
njectio
n mould for hot water bag cork. I
n this paper, the desig
n of plastic parts for the hot water bag cover. Because the dema
nd requires structure is very simple, a
nd plastics has small holes a
nd exter
nal threads, a
nd large qua
ntities of plastic parts ,Therefore, we should co
nsider reduci
ng costs as much as possible duri
ng productio
n.Plug has
not high accuracy. The surface of the plastic part ca
n be marked with parti
ng surface. I
n a word to reduce the spe
nd of the ma
nufacture,the desig
n does
not use gear with the wheel, rack to break off sheddi
ng structure automatically.I
nstead, the oblique guide colum
n is used to drive the side slider to make i
njectio
n moldi
ng .This cover mold uses a mould a
nd two cavity structure a
nd three plate to get i
nto material. Two types of parti
ng structure, feed poi
nt gate, pipe jacki
ng device a
nd sa
ndwich structure are desig
ned ,the side guide block is drive
n by oblique guide colum
n.Accordi
ng to the above report eleme
nts, the desig
n scheme is illustrated a
nd validated i
n detail i
n the
next article. The plastic plug is a mould a
nd two cavity a
nd symmetrical structure, i
n order to shorte
n the cycle, reduce the productio
n difficulty, with four of the compo
ne
nts of the structure of the slider as like as two peas.This desig
n makes the mold simple structure, eve
nly distributed, use ful for processi
ng. Key words: Mold, Plastics piece , Poi
nt gate,Sla
nti
ng guide post 第一章绪论1 1.1概述1 1.2当前国内外同类产品的研究动态1 1.3简述选题在该领域的水平和发展动态1 1.4本设计所要研究的内容… 2 1. 5本设计的主要工作2 第二章塑件材料介绍3 2. 1 A B S塑料的性能3 2 . 1 . 1物理性能3 2 . 1 . 2机械性能2 2 . 1 . 3热性能4 2 . 1 . 4化学性能4 2 . 1 . 5耐环境气候性能4 2.2ABS塑料的应用4 2.3ABS塑料的注射成型加工工艺5 2. 4塑件材料的确定5 第三章模具结构设计6 3. 1塑件分析6 3 . 2浇注系统的选择6 3 . 2 . 1浇注系统设计的原则6 3 . 2 . 2主流道的设计7 3 . 2 . 2 . 1主流道的设计原则7 3 . 2 . 2 . 2本塑件的主流道设计8 3 . 2 . 2 . 3主流道截面尺寸的计算8 3 . 2 . 3分流道的设计9 3 . 2 . 3 . 1分流道设计要点9 3 . 2 . 3 . 2分流道的截面形状9 3 . 2 . 3 . 3分流道的截面尺寸10 3 . 2 . 3 . 4分流道的布置11 3 . 2 . 4浇口的设计1 2 3 . 2 . 4 . 1浇口的基本类型及选择1 2 3 . 2 . 4 . 2浇口的尺寸确定1 2 3 . 2 . 4 . 3浇口位置选择1 3 3.2.5冷料穴的设计1 4 3.3分型面的选择1 4 3.4模具结构及动作原理1 5 3.4.1模具结构1 5 3.4.2动作原理1 6 第四章注射机的选用1 7 4.1所选注射机的性能参数1 7 4.2注射机有关工艺参数的校核1 7 4.2.1注射量的校核1 7 4 . 2 . 2锁模力与注射压力的校核1 8 4.2.3模具厚度H与注射机闭和高度的校核1 8 4.2.4注射机开模行程的校核18 第五章模具设计的有关计算20 5.1成型零件的有关尺寸的计算20 5. 1 . 1型腔的工作尺寸计算20 5 . 1 . 2型芯的工作尺寸计算21 5 . 1 . 3螺纹的工作尺寸计算22 5 . 1 . 4抽芯距与斜导柱长度的计算23 5.2型腔压力的估算2 4 5.3型腔壁厚的计算2 4 5.4脱模阻力的计算2 5 5.5锁模力的计算2 5 5.6冷却系统的分析计算2 6 5 . 6 . 1冷却的作用2 6 5 . 6 . 2冷却介质的选择2 6 5 . 6 . 3影响冷却时间的因素2 6 5 . 6 . 4冷却回路的设计2 8 5 . 6 . 5冷却回路的布置28 5 . 6 . 6冷却参数计算28 结论31 参考文献32 附录1 ：外文翻译33 附录2 ：外文原文38 致谢44