文档介绍：摘 要
塑料作为一种可塑性较好合成高分子材料已广泛应用于电脑、手机、汽车、家电、和玩具产品制造中，塑料模发展具备着辽阔市场空间。本次设计制件为玩具马积极齿轮，具备重量轻，强度高，易清洁特点，为大批量生产产品。本文基于塑料成型基本原理，特别是单分型面注射模具工作原理，运用计算机辅助设计制造基本办法，完毕了积极齿轮注射模设计。本套模具采用一模四腔、点浇口进料一模两开三板式构造。同步通过对塑件进行构造工艺分析，本文还进行了模具分型面、型腔数目、浇口形式拟定，以及脱模机构，合模导向机构，冷却系统、成型零件等模具重要构成某些设计。并用CAD绘制完整模具装配图和重要零件零件图。
核心词： 塑料 注射模 积极齿轮
Abstract
As the synthetic polymer materials with good plasticity，plastic has been widely used in computers，mobile phones，automobiles，home appliances，and toys products manufacturing，which suggests that the development of plastic mold bears a broad market space. The designed parts of this time are toy horse active gears，with the characteristics of light weight，high strength，easy to clean，as mass production products. Based on the basic principles of plastic molding，especially the working principles of the injection mould with single parting surface，this paper completes the design of injection mould of the active gears，using the basic methods of designing and manufacturing with computers’ assistance. The set of moulds adopts the structure of a mold with four cavities and a mold of two-open and three-plate with a feed point gate model. Meanwhile through the structural process analysis of the plastic parts，this paper also points to fix the mold
parting surface，the number of cavity，the form of the runner and design the major components of molds like the demolding mechanism，the whole mold steering mechanism，cooling system and the ready molded parts. And the complete mold assembling graph and the main parts graph are drawn through the use of CAD.
Key words：plastic；injection mold；active gear
目 录
1 概述 1
全球塑料工业发呈现状 1
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国内模具工业发呈现状 2
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2 塑料制件工艺性分析及材料选取 5
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3 模具构造设计与计算 7
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