手机盖注塑模设计说明书
0.5100 100?0.50.43
80 80?0.43
0.3756 56?0.37
0.3252 52?0.32
51 51?0.32 50 50?0.32
0.3248 48?0.32 0.2530 30?0.25
0.320.325 5?0.12
0.148 8?0..140.12
0.12 2?0..1
1 1?0.1
0.1（三）型腔型芯各尺寸的计算
（本部分计算公式均参照参考文献1第143～148页） 1．型腔的径向尺寸的计算
(L)??zm0?(1?S)Ls?x?????z0 （公式6.5）
式中 Lm——模具成型零件在常温下的实际尺寸； S——塑件的计算收缩率，有图4知S＝0.0055； Ls——塑件在常温下的实际尺寸； x——塑件尺寸小精度高，取x＝0.75。
型腔长度尺寸
20
手机盖注塑模设计说明书
?1.05241
1.05
?z(Lm)?0?(1?S)Ls?x?????z0?0.525??(1?0.0055)?241?0.75?0.5?0?0??241.9505?241.9?0.5755?0.96?0.525
222
0.96
??zm0(L)??(1?S)Ls?x??0?0.48???222.8460??z?0.480??(1?0.0055)?222?0.75?0.5??222.8?0.526?0.5
100
0.5
zz??(Lm)???(1?S)L?x?0s0????(1?0.0055)?100?0.75?0.5???100.55?0.375??0.170?0.170
?100.175?0.17?100.1?00.245?0.4380
0.43
??zm0(L)??(1?S)Ls?x??0??80.065??80?0.28?0.2150??z?0.2150??(1?0.0055)?80?0.75?0.5?
21
手机盖注塑模设计说明书
?0.3250
0.32
?z(Lm)?0??(1?S)Ls?x??0z????(1?0.0055)?50?0.75?0.64?0??50.275?0.48?00.202?49.7?0?0.107?0.107
0.148?0.14
0(Lm)????(1?S)Ls?x????zz0??(1?0.0055)?8-0.75?0.28?0??7.834?00.125?0.12
0(Lm)????(1?S)Ls?x????zz0?0.047?0.047
?7.80?0.081??(1?0.0055)?5-0.75?0.28?0??4.818?0?0.04?0.04
?4.80?0.0582．型芯径向尺寸的计算
(L)0m??z??(1?S)Ls?x????z （公式6.7）
0式中各符号意义与取值同前。 222?0.96
?0.960(Lm)??z??(1?S)Ls?x????z0??(1?0.0055)?222?0.75?0.5?1.920?4???223.701
0?0.48
0?223.7?0.48122
手机盖注塑模设计说明书
?0.96220?0.96
(Lm)??z??(1?S)Ls?x????z00??(1?0.0055)?220?0.75?0.5?1.920?4??221.69??0.50?0.48
0?221.6?0.57100?0.5
0(Lm)????(1?S)Ls?x????zz00???(1?0.0055)?100?0.75?0.51?4??100.925??0.598?0.5
0?0.25
0?100.9?0.275(Lm)??z??(1?S)Ls?x????z00??(1?0.0055)?98?0.75?0.5???98.914?0.370?0.2501?4
0?98.9?0.26456?0.37
(L)0m??z??(1?S)Ls?x????z0??(1?0.0055)?57?0.75?0.64?0.740?4
??57.9735?0.3250?0.32
0?0.185?57.9?00.258 23
手机盖注塑模设计说明书
0(Lm)????(1?S)Ls?x????zz0??(1?0.0055)?50?0.75?0.64???50.755??0.16?50.7?00。071000.64?4
0.3248?0.32
(L)0m??z?(1?S)Ls?x???z??(1?0.0055)?48?0.75?0.64???48.744??0.16?48.7?00。204000.64?4??0
0.148?0.14
0(Lm)????(1?S)Ls?x????zz0??(1?0.0055)?8?0.75?0.28???8.254??0.07?8.2?00。124000.28?4
5?0..12
0(Lm)????(1?S)Ls?x????zz00.12??(1?0.0055)?5?0.75?0.24???5.2075??0.06?5.2?00。0675000.24?4
2?0.1
0(Lm)????(1?S)Ls?x????zz00.1??(1?0.0055)?2?0.75?0.2???2.161??0.05?2.1?00。101000.2?4
0.11?0..1
24