加热器底座塑料模具设计.doc

本科毕业设计( 论文) 题目: 加热器底座塑料模具设计系别: 专业: 机械设计制造及其自动化班级: 学生: 学号: 指导教师: 2013 年 04月塑料注塑模具设计——加热器底座塑料模具设计摘要模具是工业生产中使用极为广泛的主要工艺装备,它是当代工业生产的重要手段和工艺发展方向,许多现代工业的发展和技术水平的提高,在很大程度上取决于模具工业的发展水平。本论文主要介绍了加热器底座塑料注塑模具的设计。设计中首先通过分析塑件的形状及工艺特性,选择了合适的模具设计方案; 其次是对注塑机的选择,包括注射机的初选和注射机有关参数的校核,并确定了注射机;再次完成模具的结构设计,包括分型面的选择和确定、型腔数目的确定及型腔的排列、浇注系统的设计、成型零件结构设计、抽芯机构设计、推出机构的选择、冷却系统的设计、标准模架的选择。最后对成型零件尺寸进行计算,确定工艺参数。设计图纸和说明书联系球球:二二九七八零六九二 Plastic I njection M old D esign Heater B ase P lastic M old D esign Abstract Mold is widely used in industrial production the main technological equipment, It is an important means of modern industrial production and process development direction ,Many modern industrial development and the improvement of the technical levels ,Largely depends on the development of die and mould industry level. This paper mainly introduced the plastic injection mold insurance seat of design. First through analysis in the design of plastic parts, process characteristics and shape ,choose the proper mould design,Second is the choice of injection, mcluding injection machine of primaries and injection machine related parameter respectively ,To determine the injection machine ; Complete the die structure design again ,Enclose the choice and determination parting ,Cavity number of determining and cavity arrangement ,The design of gating system ,Molding parts structure design ,Core-pulling mechanism design, selection of launch institutions, cooling system design, standard formwork choice ,Finally calculated for molding parts size, determine the process parameters. Using this mold can guarantee plastics dimension appearance and surface requirements , And low cost, simple structure and easy to open mold, high efficiency, with strong practicability. Keywords: Plastic injection mold; injection machine; Structure design 主要符号表 K安全系数 E材料弹性模量 S max 塑料的最大收缩率 P 1脱模阻力 S min塑料的最小收缩率 C型芯成型部分断面的平均 P 0单位面积的包紧力 h型芯被塑料包紧部分的长度Δ s塑件公差 P 0单位面积的包紧力 D 腔型腔內形尺寸Φ安全系数 Q cp塑料平均收缩率 S 顶顶出行程 d s塑件外径基本尺寸? 1富裕量 D s塑件內形基本尺寸? 2顶