塑料凳模具设计(全套图纸)

摘要本课题主要是针对塑料凳的模具设计,通过对塑件进行工艺的分析和比较,最终设计出一副注塑模。该课题从产品结构工艺性，具体模具结构出发，对模具的浇注系统、模具成型部分的结构、顶出系统、冷却系统、注塑机的选择及有关参数的校核、都有详细的设计，同时并简单的编制了模具的加工工艺。通过整个设计过程表明该模具能够达到此塑件所要求的加工工艺。本次设计的主要任务是凳子结构以及注塑模具的设计，也就是设计一副注塑模具来生产塑料凳塑件产品，以实现自动化提高产量。针对塑料盆的具体结构，该模具是直浇口的单分型面注射模具。根据模具结构，采用直导柱，设置较大的脱模斜度以便利于脱模，省去侧抽芯的设计，其优点在于简化机构，使模具使用空间减小，大大降低了模具的制造成本。通过模具设计表明该模具能达到塑料凳的质量和加工工艺要求。关键词：注射模、模具设计、工艺、结构、成本AbstractThetopicofthisdesignisaplasticstoolmould.Byanalysingandcomparingtheprocessoftheplasticparts,Idesignoutapairofinjectionmoldfinally.Thissubjectbeginsfromthecraftofproductstructure,specificstructureofmould,focusonpouringsystem,structureofmoldingpart,ejectorsystem,coolingsystem,theselectionofinjectionmoldingmachineandrelatedparametersofchecking,atthesametimecompletesthecompilingofthemouldprocessingtechnology.Thismoldcanreachtheprocessingtechnologyrequireofthisplasticpartsthroughanalysisingthewholedesignprocess.Themaintaskofthisdesignisthebenchstructureandinjectionmould,thatisdesigningapairofinjectionmoldtoproduceplasticproductsandrealizeautomation.ThisinjectionmouldadoptSpruegateandsinglepartingsurfaceaccordingtothestructureofplasticchair.Accordingtothemouldstructure,weusesstraightguidepin,setslargerdraftangletopullingoutmoldeasily,savessidecore-pullingdesign.Itsadvantageisthatsimplifyingthemechanism,decreasingthespaceofmoldused,andgreatlyreducingthemouldmanufacturingcost.Themoldcanreachtherequirementsofthequalityofplasticstoolandprocessingtechnology.Keywords:injectionmould,molddesign,process,structure,cost目录毕业设计（论文）中英文摘要........................................错误!未定义书签。目录............................................................................................................III引言.................................................................................................................1第一章绪论.....................................................................................................21.1我国模具工业发展和技术现状..........................................................21.2展望我国模具工业的发展方向..........................................................41.3模具经济技术分析..............................................................................41.4毕业设计选题背景、目的和意义.......................................................61.4.1毕业选题背景........................................................................................61.4.2毕业设计目的和意义............................................................................7第二章塑料凳结构设计...............................................................................82.1塑料凳结构设计...................................................................................82.2塑件的体积与质量的计算..................................................................92.3塑件的尺寸和精度...............................................................................92.4脱模斜度.............................................................................................112.5材料的选择.........................................................................................112.5.1塑件要求分析......................................................................................112.5.2塑材经济、环保分析..........................................................................12第三章注塑工艺设计.................................................................................143.1聚丙烯（PP）基本性能.................................................................143.2聚炳烯（PP）塑料的成型性能：.................................................143.3聚炳烯（PP）塑料的主要技术指标.............................................153.4聚丙烯的注射成型工艺参数..........................................................16第四章注塑机的选择与校核.....................................................................174.1型腔数量的确定..............................................................................174.2注塑机型号的选择..........................................................................174.3注塑机的校核.....................................................................................204.3.1最大注射量的校核..............................................................................204.3.2注射压力的校核.................................................................................204.3.3锁模力的校核.....................................................................................214.3.4开模行程校核......................................................................................224.3.5最大、最小模具厚度校核..................................................................224.3.6安装部分的校核..................................................................................23第五章注塑模具设计.................................................................................245.1塑件收缩率的计算.............................................................................245.2分型面的确定.....................................................................................245.3浇注系统的设计.................................................................................255.3.1主流道设计..........................................................................................265.3.2主流道衬套的固定..............................................................