按钮注塑模具设计说明书+图纸+任务书+答辩PPT

摘  要

按钮制品采用的材料是改性聚苯乙烯,是一种热塑性材料,符合注射模的要求.它的精度要求不高,一般4级就能满足要求.根据任务书要求,该制件属于打批量生产,所以采用了一模24腔设计,凹凸模开设在定模板和中间板之间.采用普通浇注系统点浇口的形式.根据估算制件和浇注系统凝料的重量.选用XS-Z-60型注射机,315*400*194A1型模架..分型面设在定模板和中间板之间,分型时利用拉料杆将凝料一同拉出,再用推杆和拉料杆一同将制件和凝料顶出.根据制件的精度要求和尺寸大少算出型腔和型芯的尺寸公差,再根据强度条件取壁厚5mm.由此画出各模板和零件图,最后画出装配图并校核各参数,校核无误才能使用.整个设计过程必需严谨,不能疏忽每一个环节,有关标准参考相关机械相关设计手册.此套模具结构简单,实现部分机械的自动化.

关键词: 按钮制品;按钮制品模,CAD(制图)

Abstract

Products using the button materials are modified polystyrene is a thermoplastic material, in line with the requirements of injection mold which accuracy is not required, generally four will be able to meet the requirements according to the mission statement of requirements, the parts are played batch production, so the use of a 24-cavity mold design, die embossing templates and set up in the middle plate between the ordinary form of gating system point gate, according to estimates of the workpiece material and the weight of condensate feed system. use XS-Z-60-type injection machine, 315 * 400 * 194A1 mold frame .. parting in the middle between the board and set the template, type material when the pull rod to use with condensate material out, and then pull the material shot putter and condensate with the parts and material ejection, according to the precision parts and calculate the size of a large cavity and core small dimensional tolerances, wall thickness according to strength criteria to take 5mm. templates and thus draw the parts diagram, and finally draw assembly drawing and checking the parameters, check and correct to use the entire design process required rigorous, not every aspect of negligence, the standard reference manuals related to mechanical-related design. this set the mold structure is simple, to achieve some mechanical automation.

Keywords: button products; button products mold, CAD (drawing)

目  录摘  要 3Abstract 4第1章 绪论 61.1 背景及意义 61.2 发展趋势 61.3 塑料模具的分类 71.4本论文的选题依据和研究内容 8第2章 塑件的工艺分析 92.1分析塑件使用材料的种类及工艺特征 9２.２分析塑件的结构工艺性 9２.３　塑件精度要求 9第3章 初选注射机确定型腔数 10３.１根据塑件的形状估算其体积和质量 103.2确定型腔数 103.2.1注射机额定注射量Gb，每次注射量不超过最大注射量的80% 113.2.2 根据塑件精度，由于该塑件精度较低，故采用多型腔模具，即n=24。 123.2.3 生产批量该塑件属大批量生产，故宜采用取多型腔模具。 12第4章 模具结构方案设计 124.1 确定成型位置 124.2 确定分型面 124.3 脱模原理 124.4 浇注系统形式 124.4.1主流道设计 124.4.2 分流道设计 134.4.3 浇口的设计 134.5 冷却与加热系统 134.6确定主要零件结构及尺寸 134.6.1型腔尺寸计算 134.6.2 定模座板 144.6.3 定模板 154.6.3 中间板 164.6.7 推杆固定板 174.6.8推板 184.6.9 动模座板 18第5章 模具工作零件的设计与计算 195.1 型腔侧壁厚度和底板厚度的计算 195.2 脱模机构的设计与计算 205.2.1脱模力的计算 205.2.2顶杆直径的计算 215.3 注射机与模具各参数的校核 225.3.1工艺参数的校核 225.3.2安装参数的校核 23总  结 24参考文献 25致  谢 26