【正文】 the guiding mechanism of mold, mold release, institutions, cooling this design, injection mold development and design methods can have a basic understanding of to notice the details in the design process to understand the mold structure and working principle.Key words：base of fourwheel toys、molding process、mold design、injection mold目錄1 緒 論..................................................................................................................................................1 模具，模具在國民經(jīng)濟中的地位..........................................................................................1 模具工業(yè)的發(fā)展方向............................................................................................................1 模具工業(yè)在我國的發(fā)展現(xiàn)狀................................................................................................2 模具工業(yè)在國際上的發(fā)展水平............................................................................................3 本課題研究的意義................................................................................................................32 工藝分析...........................................................................................................................................4 塑件結(jié)構(gòu)的工藝性分析........................................................................................................4.............................................................................................................53 模具設(shè)計...........................................................................................................................................6 .........................................................................................................................................6.........................................................................................................................7 注射機型號確定....................................................................................................................8.....................................................................................................9...............................................................................................................................11.......................................................................................................................12 .......................................................................................................................13.......................................................................................................................13.......................................................................................................... 144 合模導(dǎo)向機構(gòu)設(shè)計.........................................................................................................................14...........................................................................................................................14...........................................................................................................15...........................................................................................................................15...........................................................................................................................16.......................................................................................................16 5 模架的確定和標準件的選用.........................................................................................................17...........................................................................................................................17...........................................................................................................18 ...........................................................................................................20 型腔成型尺寸計算..............................................................................................................226 脫模機構(gòu)設(shè)計.................................................................................................................................24 脫模機構(gòu)的作用和設(shè)計原則.........................