机械5

摘要 注射成形是把塑料原料放入料筒中经过加热熔化，使之成为高黏度的流体，用柱塞或螺杆作为加压工具，使熔体通过喷嘴以较高压力注入模具的型腔中，经过冷却、凝固阶段，而后从模具中脱出，成为塑料制品。本次的设计是塑料盖板的注塑模的设计，依据产品的数量和塑料的工艺性能确定了以1次分型面注塑模的方式进行设计。模具的型腔采用一模2腔直线排列，浇注系统采用侧浇口成形，推出形式为推杆推出机构完成塑件的推出。由于塑件的工艺性能要求注塑模中有冷却系统，因此在模具设计中也进行了设计。 关键词：1次分型面注射模具；侧浇口；推杆。 Abstract I
njectio
n moldi
ng is the plastic material i
nto the barrel through the heati
ng a
nd melti
ng, make it become the high viscosity fluid, used as a plu
nger or screw compressio
n tools, cavity melt through the
nozzle with high pressure i
njectio
n mold, after cooli
ng, solidificatio
n stage, a
nd the
n ejected from the mould, a plastic products. The graduatio
n desig
n is the desig
n of the i
njectio
n mould for the plastic cover, plastic product qua
ntity a
nd process performa
nce determi
ned the desig
n with 1 sub type surface i
njectio
n mold way. The cavity of the mold usi
ng a 2 cavity is arra
nged i
n a straight li
ne, pouri
ng system uses some gate formi
ng, roll out i
n the form of for push board lau
nched i
nstitutio
ns to complete the i
ntroductio
n of plastic parts. Because the plastic parts of the process performa
nce requireme
nts of i
njectio
n mold cooli
ng system, a
nd therefore i
n the mold desig
n to desig
n. Keywords:1 si
ngle i
njectio
n mold parti
ng surface; the side gate; push rod. 目录 摘要1 Abstract 2 前言5 第一章模塑工艺规程的编制7 1.1塑件的原材料工艺性分析7 1.2塑件的结构和尺寸精度及表面质量分析8 1.3塑件注塑工艺参数的确定9 1.4注塑模工艺条件10 1.5注塑机的选用10 第二章注塑模的结构设计11 2.1分型面选择11 2.2确定型腔的数目及排列方式12 2.3浇注系统设计14 2.4脱模机构的设计18 2.5导向机构的设计19 第三章注塑模具的有关计算25 3.1成型零件结构设计25 3.2成型零件工作尺寸的计算27 3.3模架的选用31 3.4 MoldFlow分析验证31 第四章模具冷却系统的设计39 第五章注塑机有关参数的校核42 5.1模具合模时校核： 42 5.2最大注塑量校核42 5.3锁模力校核42 第六章模具材料的选取以及总装图的绘制44 6.1模具材料的选取44 6.2模具总装图的绘制45 6.3本模具的工作原理45 结论47 参考文献48 致谢49