塑件分析
摘要
塑料制品具有原料来源丰富,价格低廉,性能优良等特点。它在电脑、手机、汽车、电机、电器、仪器仪表、家电和通讯产品制造中具有不可替代的作用，应用极其广泛。注射成形是成形热塑件的主要方法，因此应用范围很广。
本次的设计是六孔警灯的注塑模具的设计。依据产品的数量和塑料的工艺性能确定塑件采用注射成形法生产，模具的型腔采用单腔平衡布置。本次的设计中不仅参考了大量纸质文献，而且在互联网上查阅资料，设计过程比较完整。
关键词：六孔警灯，注塑模具，单腔
Abstract
Plastic products are rich in raw materials, low price, good performance and so on. It plays an irreplaceable role in the manufacture of computers, mobile phones, automobiles, motors, electrical appliances, instruments and meters, household appliances and communication products, and iswidely used. Injection molding is the main method of forming thermoplastic parts, so it has awide range of applications.
This graduation design is the design of the injection mold for the six lights. According to the quantity of the product and the technological performance of the plastic, the plastic parts are produced by injection molding, and the mold cavity is balancedwith a single cavity. This design not only refers to a large number of paper documents, but also searches data on the Internet, and the design process is more complete.
Keywords: six lights, plastic injection mold, single cavity
目录
第一章塑件建模·························· 1第二章塑件成型工艺分析······················ 2 2. 1塑件的分析·························· 2
2. 1. 1外形尺寸························· 2
2. 1. 2精度等级························· 3
2. 1. 3脱模斜度························· 4
2. 2材料（PC）的性能分析····················· 4
2. 2. 1使用性能························· 4
2. 2. 2成型性能························· 4
2. 2. 3 PC材料详细参数······················ 5
2. 3 PC的主要加工过程参数与注意事项··············· 5
2. 3. 1原料的干燥························ 5
2. 3. 2注射工艺························· 5
2. 3. 3注意事项························· 6第三章拟定模具的结构形式····················· 7 3. 1分型面位置的确定······················· 7
3. 2型腔数量和排列方式的确定··················· 7
3. 2. 1型腔数量的确定······················ 7
3. 2. 2型腔排列形式的确定···················· 7
3. 2. 3模具结构形式的确定···················· 7
3. 3注射机型号的确定······················· 7
3. 3. 1注射量的计算······················· 7
3. 3. 2浇注系统凝料体积的初步估算················ 7
3. 3. 3选择注射机························ 7
3. 4注射机的相关参数的校核···················· 8
3. 4. 1注射压力校核······················· 8
3. 4. 2锁模力校核························ 8第四章浇注系统设计························ 9 4. 1主流道设计·························· 9
4. 1. 1主流道尺寸························ 9
4. 1. 2主流道的凝料体积····················· 9
4. 1. 3主流道的当量半径····················· 9
4. 1. 4主流道的浇口套形式···················· 9
4. 2分流道设计·························· 10
4. 3浇口的设计·························· 10
4. 4校核主流道的剪切速率····················· 11
4. 5冷料穴的设计························· 11第五章成型零件设计计算····················· 12 5. 1成型零件的结构设计······················ 12
5. 1. 1凹模的结构设计······················ 12
5. 1. 2凸模的结构设计······················ 12
5. 2成型零件钢材的选用······················ 12
5. 3成型零件工作尺寸的计算···················· 12
5. 3. 1凹模径向尺寸的计算···················· 12
5. 3. 2凹模深度尺寸的计算···················· 12
5. 3. 3型芯径向尺寸的计算···················· 13
5. 3. 4型芯高度尺寸的计算···················· 13
5. 3. 5侧抽芯中心距的计算···················· 13第六章模架选型························· 14 6. 1模板尺寸确定························· 14
6. 2模架各尺寸的校核······················· 14
第七章排气槽设计························ 15第八章脱模推出机构设计····················· 16 8. 1推出方式··························· 16
8. 2脱模力计算·························· 16
8. 3校核推出机构作用在塑件上的单位压应力············· 16
8. 3. 1推出面积························· 16
8. 3. 2推出应力························· 16第九章冷却系统设计······················· 17 9. 1冷却介质··························· 17
9. 2冷却系统的简单计算······················ 17
9. 2. 1单位时间内注入模具的塑料熔体的总质量W·········· 17
9. 2. 2确定单位质量的塑件在凝固时放出的热量Qs·········· 17
9. 2. 3计算冷却水的体积流量qv·················· 17
9. 2. 4确定冷却水路的直径d··················· 17
9. 2. 5冷却水在管内的流速v··················· 17
9. 2. 6求冷却管壁与水交界面的膜传热系数h············ 17
9. 2. 7计算冷却水通道的导热总面积A··············· 18
9. 2. 8计算模具所需冷却水管的总长度L·············· 18
9. 2. 9冷却水路的根数x····················· 18
9. 3冷却水道的设置························
18第十章导向与定位结构设计····················
19第十一章总装图和零件图的绘制··················
20谢辞···························· 21
参考文献···························· 22
三维装配线框图
装配图-A0
凹模-A1
侧抽芯-A4
导套-A4
导柱-A4
垫板-A1
定距拉杆-A4
定位圈-A4
动模型腔固定板-A1
动模型腔镶套固定板-A2
动模坐板-A2
盖板-A2
浇口套-A4
冷却嵌件-A2
设计字数统计
塑件-A4
锁紧嵌块-A4
锁紧嵌块固定板-A2
推板-A3
推杆-A4
推杆固定板-A2
小支撑柱-A4
型芯-A3
支撑板-A2
支撑柱-A4
中英文摘要
主推板-A2
设计目录
