摘要
针对制造工艺是注射成型填充的科学计算器保护滑盖塑料件,其注射工程原料为PP。保护滑盖塑料件为一款需求数量特大的用品,本次会对保护滑盖塑料件进行塑料件成型工艺分析与模具设计。分析中发现塑件在配合组装后的成品要求苛刻,因此对外观轮廓和需要配合的部位尺寸要求为中等精度,其余位置尺寸则可定为自由尺寸。秉着对塑件使用场合、环境、安装为塑件工艺分析条件,得出模具工艺方案。继而深入对模具设计技术刻苦钻研并查阅大量的典型案例,与本次保护滑盖塑料件并合构思校对选出最理性的设计方案。
本次成型机构方案选定为一模两腔,既符合本次对塑件制造量基础要求,也能满足模具的成型工艺时效。还需对模具分型面、模腔数目、填充浇注系统、脱模推出系统、温控调温系统等,让层层相环扣的各大系统更为可靠和协调,确保工艺的稳定并控制好最佳的成本。对此让模具更具有动作可靠、结构严谨等特点。可见更要精打细算好成型部件数据微距变化影响,校核各处细节,定要抢先挖掘出模具设计中存在错误或设计中较为粗糙之处。这样高精密高质量所构成的模具设计,才会对模成型填充时间的缩短、模具成型工作稳靠,大大提升生产时效上和塑件的质量。
关键词:科学计算器保护滑盖;注射成型工艺;塑料模具;模具设计;
Abstract
I
n view of the fact that the ma
nufacturi
ng process is i
njectio
n moldi
ng a
nd filli
ng, the i
njectio
n e
ngi
neeri
ng material is PP. The plastic parts of the protectio
n slide cover are i
n great dema
nd. This time, we will a
nalyze the formi
ng process a
nd desig
n the mold for the plastic parts of the protectio
n slide cover. I
n the a
nalysis, it is fou
nd that the fi
nished product of the plastic parts after assembly has strict requireme
nts, so the appeara
nce co
ntour a
nd the size of the parts that
need to be matched are required to be of medium precisio
n, a
nd the size of other positio
ns ca
n be determi
ned as free size. Accordi
ng to the use of plastic parts, e
nviro
nme
nt, i
nstallatio
n as the plastic parts process a
nalysis co
nditio
ns, get the mold process pla
n. A
nd the
n i
n-depth study of mold desig
n tech
nology assiduously, a
nd access to a large
number of typical cases, combi
ned with the co
ncept of this protectio
n of slidi
ng cover plastic parts, proofread a
nd select the most ratio
nal desig
n scheme. The first mock exam is selected as o
ne mold a
nd two cavities, which
not o
nly meet the basic requireme
nts for the ma
nufacturi
ng of plastic parts, but also meet the moldi
ng process agi
ng of moulds. I
n additio
n, the mold parti
ng surface, cavity
number, filli
ng a
nd pouri
ng system, demouldi
ng a
nd pushi
ng system, temperature co
ntrol system, etc. should be adjusted to make the major systems of layer by layer more reliable a
nd coordi
nated, so as to e
nsure the stability of the process a
nd co
ntrol the best cost. I
n this regard, the mold has more reliable actio
n, rigorous structure a
nd other characteristics. It ca
n be see
n that it is more importa
nt to carefully calculate the i
nflue
nce of macro cha
nges i
n the data of formi
ng parts, check the details, a
nd be the first to dig out the mistakes or rough parts i
n the mold desig
n. I
n this way, the mold desig
n with high precisio
n a
nd high quality ca
n shorte
n the filli
ng time of mold formi
ng, make the mold formi
ng work stable, a
nd greatly improve the productio
n efficie
ncy a
nd the quality of plastic parts. Key words: scie
ntific calculator protectio
n slide cover; i
njectio
n moldi
ng process; plastic mold; mold desig
n; 目录 摘要I Abstract II 序言1 第1章塑件成型与工艺分析3 1.1塑料件工艺分析与要求3 1.2塑件的技术要求4 1.3材料特性与用途4 1.3.1材料物理特性4 1.3.2成型材料充填信息5 1.4塑件注射容量与注射设备选取5 第2章模具工艺选定与机构设计8 2.1主分型面选定8 2.2型体的排位布局8 2.2.1型腔排位布局设计8 2.3充填浇注系统各机构设计9 2.3.1浇注主流道设计9 2.3.2浇注分流道设计10 2.3.3浇注浇口设计11 2.4浇注冷料作用与设计13 2.5拉料杆作用与设计13 2.6脱模推出方式设计14 2.6.1脱模推出设计原则14 2.6.2粘模推出力计算14 2.6.3推杆直径与强度计算15 2.7侧向抽芯脱模机构设计与计算16 2.7.1斜推杆滑动抽芯机构的行程与抽芯力计算16 2.7.2斜推杆设计与角度选取17 2.8冷却调温系统设计17 2.8.1冷却方式选择17 2.8.2冷却水路直径选定18 2.8.3冷却水路布局设计18 第3章腔体成型部件设计与工作尺寸计算20 3.1定模型腔工作尺寸验算20 3.2动模型芯工作尺寸验算21 3.3型腔的结构设计21 3.4型芯结构设计22 3.5模具排气系统设计22 第4章模架选取24 4.1模架组合类型选取24 4.2模架尺寸选定24 4.3模架中导向机构组成与安装25 第5章模具与注射成型机技术参数验算27 5.1成型机填充注射量校准27 5.2成型机充填压力校准27 5.3成型机合模锁紧力校准28 5.4模具实际安装尺寸检验29 5.5模具在成型机上工作行程检验30 5.5.1推出机构工作行程校准30 5.5.2模具移模拉开行程校准30 第6章模具与注射成型机技术参数验算32 6.1数控编程仿真32 6.2加工余量设计32 6.3数控铣床切削用量设计33 6.4数控的加工编程33 总结38 参考文献39 致谢40 附图:二维装配图41 序言 注塑模具能有高速发展,主要是具有出色可替代性、低廉的制造成本、批量制造工艺成熟。现已铺满了现代化社会中很多机器、工具、日常用品、特殊品的广泛用途,也是时代高速发展象征性的表现。注塑模具制造工艺主要是利用热塑成型工艺,是通过特定的设备把原材料加热熔融液化并加压挤射到模具内塑造指定形状,在经过充填和冷却的工艺后,原材料逐渐由液化转化为固态而达到成型效果。 近三四十年来,中国的注塑模具发展非常快,跳跃式的翻天覆地变化。从最先的空白期到核心技术能自主独立把控,工艺技术不间断地快速更新,轻易较比前后十年的工艺技术存在特大变化。至此技术的提升,更是推动了高新技术发展和模具产能的增加。部分技术还自我创新推进,所获取的成就也有属于自己的专利技术和加工制造设备。技术与产能更是面向全世界推进,与德国、日本等模具技术先进国家已相距不远。特别生产制造的能力,已经跃升至世界第一。自2010年以来,因模具的需求剧增,也推动了加工设备、成型设备的工艺发展,能有自己独特的技术领域和制造能力。因而很多先进国家的生产制造都投放在中国,让中国制造的标签更为响亮。由此可见模具高速发展对工业作出了巨大贡献,更是工业革命必不可少的基石。自
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n view of the fact that the ma
nufacturi
ng process is i
njectio
n moldi
ng a
nd filli
ng, the i
njectio
n e
ngi
neeri
ng material is PP. The plastic parts of the protectio
n slide cover are i
n great dema
nd. This time, we will a
nalyze the formi
ng process a
nd desig
n the mold for the plastic parts of the protectio
n slide cover. I
n the a
nalysis, it is fou
nd that the fi
nished product of the plastic parts after assembly has strict requireme
nts, so the appeara
nce co
ntour a
nd the size of the parts that
need to be matched are required to be of medium precisio
n, a
nd the size of other positio
ns ca
n be determi
ned as free size. Accordi
ng to the use of plastic parts, e
nviro
nme
nt, i
nstallatio
n as the plastic parts process a
nalysis co
nditio
ns, get the mold process pla
n. A
nd the
n i
n-depth study of mold desig
n tech
nology assiduously, a
nd access to a large
number of typical cases, combi
ned with the co
ncept of this protectio
n of slidi
ng cover plastic parts, proofread a
nd select the most ratio
nal desig
n scheme. The first mock exam is selected as o
ne mold a
nd two cavities, which
not o
nly meet the basic requireme
nts for the ma
nufacturi
ng of plastic parts, but also meet the moldi
ng process agi
ng of moulds. I
n additio
n, the mold parti
ng surface, cavity
number, filli
ng a
nd pouri
ng system, demouldi
ng a
nd pushi
ng system, temperature co
ntrol system, etc. should be adjusted to make the major systems of layer by layer more reliable a
nd coordi
nated, so as to e
nsure the stability of the process a
nd co
ntrol the best cost. I
n this regard, the mold has more reliable actio
n, rigorous structure a
nd other characteristics. It ca
n be see
n that it is more importa
nt to carefully calculate the i
nflue
nce of macro cha
nges i
n the data of formi
ng parts, check the details, a
nd be the first to dig out the mistakes or rough parts i
n the mold desig
n. I
n this way, the mold desig
n with high precisio
n a
nd high quality ca
n shorte
n the filli
ng time of mold formi
ng, make the mold formi
ng work stable, a
nd greatly improve the productio
n efficie
ncy a
nd the quality of plastic parts. Key words: scie
ntific calculator protectio
n slide cover; i
njectio
n moldi
ng process; plastic mold; mold desig
n; 目录 摘要I Abstract II 序言1 第1章塑件成型与工艺分析3 1.1塑料件工艺分析与要求3 1.2塑件的技术要求4 1.3材料特性与用途4 1.3.1材料物理特性4 1.3.2成型材料充填信息5 1.4塑件注射容量与注射设备选取5 第2章模具工艺选定与机构设计8 2.1主分型面选定8 2.2型体的排位布局8 2.2.1型腔排位布局设计8 2.3充填浇注系统各机构设计9 2.3.1浇注主流道设计9 2.3.2浇注分流道设计10 2.3.3浇注浇口设计11 2.4浇注冷料作用与设计13 2.5拉料杆作用与设计13 2.6脱模推出方式设计14 2.6.1脱模推出设计原则14 2.6.2粘模推出力计算14 2.6.3推杆直径与强度计算15 2.7侧向抽芯脱模机构设计与计算16 2.7.1斜推杆滑动抽芯机构的行程与抽芯力计算16 2.7.2斜推杆设计与角度选取17 2.8冷却调温系统设计17 2.8.1冷却方式选择17 2.8.2冷却水路直径选定18 2.8.3冷却水路布局设计18 第3章腔体成型部件设计与工作尺寸计算20 3.1定模型腔工作尺寸验算20 3.2动模型芯工作尺寸验算21 3.3型腔的结构设计21 3.4型芯结构设计22 3.5模具排气系统设计22 第4章模架选取24 4.1模架组合类型选取24 4.2模架尺寸选定24 4.3模架中导向机构组成与安装25 第5章模具与注射成型机技术参数验算27 5.1成型机填充注射量校准27 5.2成型机充填压力校准27 5.3成型机合模锁紧力校准28 5.4模具实际安装尺寸检验29 5.5模具在成型机上工作行程检验30 5.5.1推出机构工作行程校准30 5.5.2模具移模拉开行程校准30 第6章模具与注射成型机技术参数验算32 6.1数控编程仿真32 6.2加工余量设计32 6.3数控铣床切削用量设计33 6.4数控的加工编程33 总结38 参考文献39 致谢40 附图:二维装配图41 序言 注塑模具能有高速发展,主要是具有出色可替代性、低廉的制造成本、批量制造工艺成熟。现已铺满了现代化社会中很多机器、工具、日常用品、特殊品的广泛用途,也是时代高速发展象征性的表现。注塑模具制造工艺主要是利用热塑成型工艺,是通过特定的设备把原材料加热熔融液化并加压挤射到模具内塑造指定形状,在经过充填和冷却的工艺后,原材料逐渐由液化转化为固态而达到成型效果。 近三四十年来,中国的注塑模具发展非常快,跳跃式的翻天覆地变化。从最先的空白期到核心技术能自主独立把控,工艺技术不间断地快速更新,轻易较比前后十年的工艺技术存在特大变化。至此技术的提升,更是推动了高新技术发展和模具产能的增加。部分技术还自我创新推进,所获取的成就也有属于自己的专利技术和加工制造设备。技术与产能更是面向全世界推进,与德国、日本等模具技术先进国家已相距不远。特别生产制造的能力,已经跃升至世界第一。自2010年以来,因模具的需求剧增,也推动了加工设备、成型设备的工艺发展,能有自己独特的技术领域和制造能力。因而很多先进国家的生产制造都投放在中国,让中国制造的标签更为响亮。由此可见模具高速发展对工业作出了巨大贡献,更是工业革命必不可少的基石。自
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