毕业设计（论文）-塑料注射成型机液压系统设计

附件22：毕业设计（论文）毕业设计（论文）塑料注射成型机液压系统设计与分析学院：XXX（三号黑体字，下同）专业班级：XXXXXX班姓名：XXX学号：20XXXXXXXX指导教师：XXX讲师20XX年X月塑料注射成型机液压系统设计与分析PlasticInjectionMoldingMachineHydraulicSystem,DesignandAnalysis摘要随着注塑行业的不断发展，注塑机的应用也越来越广泛，它可以将热塑性塑料或热固性料利用塑料成型模具制成各种形状的塑料制品的主要成型设备。目前注塑机普遍会存在注塑机体积大、耗能大、成本高、效率低、合模力不足、注塑工艺有所欠缺等问题。本文设计的注塑机具有体积小、智能化程度高、合模力大等优势，相对于市场上现有产品来说，很好的解决了成本问题和效率问题，通过对整个注塑机工艺进行分析，实现“合模缸合模—注射座缸前进—注射缸注射—保压—冷却预塑—注射座缸后退—合模缸开模—顶出缸顶出制品—顶出缸后退—合模”的动作循环。采用双泵供油满足油量的高低切换，实现快速、慢速动作，同时适配高低流量需求，减少能量浪费和功率损失大等问题；采用旁路节流调速实现快慢转换，合理优化泵站，使泵站实现集约型、节能型，减少能量损失；设置冷却循环装置，及时降温，减少高温对元件的损坏等。本文设计的是一种新型的塑料注射成型液压系统，包括了液压系统原理图的设计及绘制、液压系统参数的计算、液压元件的选型、能量损失验算、热平衡验算、油箱设计、集成块设计、油缸的设计等。这种塑料注射成型液压系统的全新设计、全新优化是市场急需的，对于现如注塑行业日益剧增的需求的一个现实的研发支持。市场需求的增加、技术研发的迫切需求使得这种塑料注塑机液压系统的设计有着广阔的前景。关键词：塑料注射机液压系统新型设计广阔前景AbstractWiththedevelopmentofinjectionmoldingindustry,theapplicationofinjectionmoldingmachineismoreandmoreextensive.ItcanmakeThermoplasticorthermosettingmaterialsintothemainmoldingequipmentofplasticproducts.Atpresent,therearemanyproblemsininjectionmoldingmachine,suchaslargevolume,highenergyconsumption,highcost,lowefficiency,insufficientclampingforceandinsufficientinjectionmoldingprocess.Theinjectionmoldingmachinedesignedinthispaperhastheadvantagesofsmallvolume,highintelligentizeddegreeandlargeclampingforce.Comparedwiththeexistingproductsonthemarket,itsolvestheproblemsofcostandefficiencyverywell,throughtheanalysisofthewholeinjectionmoldingmachineprocess,theactioncycleof“Dieclosing-advanceofinjectionblockcylinder-injectionofinjectionblockcylinder-pressurekeeping-coolingpre-molding-backofinjectionblockcylinder-dieclosing-dieopening-ejecting-ejecting-ejecting-ejecting-dieclosing”isrealized.Thedouble-pumpoilsupplyisusedtosatisfythehighandlowswitchingofoilquantity,realizethefastandslowoperation,atthesametime,itadaptsthehighandlowflowdemand,andreducestheproblemsofenergywasteandpowerloss,etc.,optimizepumpstationreasonably,makepumpstationrealizeintensive,energy-saving,reduceenergyloss,setcoolingcirculationdevice,timelycooling,reducehightemperaturedamagetocomponents.Thispaperdesignsanewhydraulicsystemforplasticinjectionmolding,itincludesthedesignanddrawingofhydraulicsystemschematicdiagram,thecalculationofhydraulicsystemparameters,theselectionofhydrauliccomponents,thecheckofenergyloss,thecheckofheatbalance,thedesignofoiltank,thedesignofintegratedblock,thedesignofoilcylinderandsoon.Thenewdesignandoptimizationoftheinjectionmoldinghydraulicsystemisurgentlyneededbythemarket,asarealisticr&Dsupportfortheincreasingdemandoftheinjectionmoldingindustry.Theincreasingmarketdemandandtheurgentdemandoftechnologyresearchanddevelopmentmakethedesignofhydraulicsystemofplasticinjectionmoldingmachinehavebroadprospects.Keywords:Plasticinjectionmachinehydraulicsystemnewdesignbroadprospects

目录摘要 1Abstract 11绪论 11.1课题研究背景与意义 11.2课题研究的意义和目的 21.3国内外发展现状 31.4课题研究的内容和方法步骤 42液压系统的设计与分析 52.1基本参数 52.2液压系统原理图的设计 62.3液压系统原理图的分析 72.4动作循环 83液压元件的计算与选型 93.1参数确定 93.2油缸的设计与分析 103.2.1合模油缸的设计计算 123.2.2注射座油缸的设计计算 133.2.3合模油缸的流量计算 143.2