牙签瓶旋盖注射模具设计.doc

本科毕业设计（论文）通过答辩 PAGE 机械模具毕业设计（论文），优质质量，通过答辩，毕业无忧 牙签瓶旋盖注塑模具设计 摘要：随着时代的发展，塑料模具是当代社会发展的技术产物。塑料成品用于电子仪表、汽车、家用电器、手表、娱乐设施等方面，由于经济的发展，人们生活水平的提高，则人们的要求越来越高，也越来越挑剔，故各种产品的外观和性能必须不断地提升，模具也越做越精密。因此注塑模具的设计与制造是一项关键个技术。本论文是介绍牙签瓶旋盖注射模设计 本论文详细介绍了这套模具设计的过程，了解模具结构设计、浇注系统的设计、冷却系统设计、脱模机构设计、排气系统设计、，合模机构设计，导向机构设计的流程。同时还介绍了注塑材料成型工艺和性能，以及注塑机的选用和对部分参数的校核。设计过程中运用了点浇口的三板式模具，塑件在脱模的过程中通过一限位块来限制定模板的行程，通过镶块型芯间的滑动来脱落塑件的内螺纹。 关键词：注塑模具　三板式　限位块 镶块 内螺纹 Toothpick bottle screw cap injection mold design Abstract:With the development, plastic mold technology is the product of contemporary social development.Plastic finished products for electronic devices, cars, home appliances, watches, entertainment facilities and so on, as economic De Fa Zhan, peoples living standard of higher than it otherwise its becoming more demanding, more and more critical, so a variety of productsappearance and performance must continue to enhance, mold is also growing in precision.Therefore, injection mold design and manufacturing is a key technical.This paper is to introduce the toothpick bottle screw cap injection mold This paper introduces the set of mold design process, understanding of die structure design, the design of gating system, cooling system, ejection mechanism design, exhaust system design, clamping mechanism design, design process-oriented organization.Also introduced injection molding technology and performance, as well as the selection of injection molding machine and check some parameters.The design process using a three-point gate plate mold, plastic parts in the process of stripping limit by a fixed mold block to limit the travel of cores through the inserts to slide off between the internal thread of plastic parts. Keywords: Injection mold 3 Plate Limit block Inserts Internal thread Instructor Signature: 牙签瓶旋盖注射模具设计 1.1塑料与塑料工业的发展 1.1.1塑料工业的发展历史及现状 早在19世纪以前，人们就已经利用沥青、松香、琥珀、虫胶等天然树脂。1868年将天然纤维素硝化，用樟脑作增塑剂制成了世界上第一个塑料品种，称为赛璐珞，从此开始了人类使用塑料的历史。从此开始