会员注册 | 登录 | 微信快捷登录 支付宝快捷登录 QQ登录 微博登录 | 帮助中心 人人文库renrendoc.com美如初恋!
站内搜索 百度文库

热门搜索: 直缝焊接机 矿井提升机 循环球式转向器图纸 机器人手爪发展史 管道机器人dwg 动平衡试验台设计

外文翻译--对输送机用于食品输送系统的调查设计和制造 英文版.pdf外文翻译--对输送机用于食品输送系统的调查设计和制造 英文版.pdf -- 5 元

宽屏显示 收藏 分享

资源预览需要最新版本的Flash Player支持。
您尚未安装或版本过低,建议您

IntJAdvManufTechnol20551–9DO10.7/s0131843RIGNLARICLES.HMasoodB.AbasE.ShaynA.KarnivestigtioitdesigndmnufactringofmechaniclcoverstemsforfdpcessingRecived29March2003/Aceptd21June2003/Publishedonline23June2004©SprngerVelgLondonimtd2004AbstacThispaperpresnttheresultofaresrchinvestigaionundertakentodevelopmhodologindthniquehawlreduchecosandtimoftdesign,mnufuringandasmblyofmehanilconveyortemusedinthefoodbevergeindustry.Theimprovedmhodologyfordesignaproductonofconveorcomponentsibaseontmnimtiofmaerils,patsandost,usngtherulsofsiformanufcturnddeignforsembly.Restobtainedonatesonveyorstemverythebenefitsofusimprovechnique.Theovealmeialcoswareducdby19andtheoveralsemblycostwsrducedby20comparetoconventionamthods.KeywordsAemblyCostreductionDesignFADMMchanialconveor1IntroductinConveyrstemusedithefoodandbeverageindustryaehighlautomdctommadestructuresconsstngoflgenumberofpartsandsigneocayproducuchasfoodcatons,drinkbotlecansinfsttionndemblylines.Mostoftheprocsingndpackagingoffoodadrinknvoecniuosperatowherartons,btlesorcnsrequirdtmoveatcontolldspeforfilioramblyopeations.Theiroperionsrequirhighlyecntndrelimechanialconveyos,hichangefromoverheadtpstofloormountedtpeofchain,rolleorbeltdrivenconveyrems.Inrcntars,mmensprsurefromlientsforlowcostbuteffiimeniclonveyortmshapushedonveyormanufcturrstoreviwtheicurrentdesignandsemblymethodsndlookanltnavemanstomanufcturmorconomialreliblconveyorsforheirlients.Apresnt,S.HMasoduB.AbasE.ShaynA.KarIndutrilRearchIntiuewibure,wibnUivsiyofTcnolgathor,lbur312,straiEmilsmadswin.edu.amostmaterilhandlingdevices,bothhardwarendsoftware,highlyspecaised,nflexiblandostlyoconfigur,inslndmintn1.Conveyorsfixedinermsoftheirloctonstheconveorbeltsacordingtohenchronisedpeeds,makinganyhangeoveroftheconveyrstemverydifficultndexpensive.Intodaysadilhangingindustialmkes,herisaneedtoimplemntnewmanufctursregy,newytemoperonalconcptandsyemontoloftarendhardwaedeveopmentconcept,thacanbeppliedohedesignofnegenerationofopen,flxiblemtrilhandlingytem2.HoandRnky3proposedanewmodulandreconfigurabl2D3Dconveyorstm,hichencompasanopereconfigurablesoftwaechieturbasdontheCIMOSAopensytemrchiurmodel.Iisnotetharesarchithearofimprovementofconveyormsusinbevegeindustsverylimtd.Mostofthepublihedresarcisdirectdowardsimprovingheoperaionsofconveyotmandintgrtionofstemtohighlysophistiaesoftwarehardwre.Thipaperprsntarerchnvetigaonimdatimprovingthecuretchniquesandpracesusnhedesign,manufingandemblyoffloormounttypechaindrvenmechanilconveorsinordertoeductmanufturingladtimandostforuchconves.Applingtheconceptofconcurrentngineeringandtheprincplesofdesignformanuftingadesignforsembly4,5,veralctalconveyorpatswernvetigadfortirfunctionaity,merisuitabilit,ngthciron,costandesofasemblntheoverconveyorstem.Therilpartwrmodifidandedesigneditnehapeageomety,andsomeithnewmatrl.Themproveddesignmhodsthefunconalityofnewconveyorpatswerverfiedandtesdonanetesconveyorstemdeigned,manufcturembldusingtheimprovedrts.2DesignfornufctringdsemblFMAInrecntyears,earchintheareofdesignformanufcturingandsmblhabeomveyusfulorndustrieshaareon52sideringmprovingtheirfaciltesandmnufacturingmethodology.However,trehasnotbennoughworkdoneinheareofsignforconveyocomponents,epecialyrelatdotisuencreasingnumbersofdraingdatndngineerngoftheprocofcdesignbasedonraditionalmthods.EmphasiestandardisationUthemplposbleoperationsseoperationsofknowncpabilyMinimseupsandinterventindertakengineerngchangesnbatchesAvasamountpapershavebenpublihehaveinvestigatediuesrelatdoDFMAandppletovariousmethodologisoachivesulttprovedconomial,fficntandcosteftiforthecompaniesunderinvestgaon.ThemanlasifiationsofFknowledgecanbeidentifieds1Generlguidelnes,2Companyspeifistpraccor3Procsandorreourcepecifionstrant.Generlguidelineseftogelyappliblrulesofhumb,rlatingtoamnufcuringdominofwhichthedeigneshouldbewre.ThefollowlsthabeenompiledforDFMguidelines6.Thesedeignguidelishouldbehoughtofasoptimalsuggetions.Theytpcaywilresultinahighqualty,owcos,andmnufacurblesgn.Oconalycomprisemustbemde,ofours.Intheeas,ifaguidelnegoeagainstamrketingorperformancrquiremnt,thextbestlternaiveshouldbeselctd7.Companypecifipraticerfstoinhousedesignrulesacdevelops,usualyovealongperodoftm,andwhihthedesignerisexpectedoadhereto.ThesedeirulesareintifiedbytheompanyscontibutingtoimprovedqualityndfcncyrecognisingtheoveralelonshipsbetwenDesignforaminimumnumberofpartsvelopmodulrdesignMinimsepatvaiatonsgnrsobemulfunctionalDesitformtiuseparsasoffabrictonAvoidetftenerMaximiscompliancdesignforeasofasemblynimehandlnghandlingprnttionEvaluatasmblymethodsimnaedjustmntsAvoidflxiblecomponetheyaredifficultohandleUsepartsofknownapabililowformaximumintolerancofpartsseknownndprovevendorsndupplierpartsadertedvaluewithnomarginaloversteMinimeubasmblispartiularprocsanddegndecisons.Companiesussuchguidelnespartoftherinigiventodesignerofproductrequiringignificantmountsofmanualaemblyormaintenanc.Notethamostoftmethodologisrgoodtherbeiquickandsyosarorbeingmoreformalndquantitave.Forexampl,guidelinesbyBoothroydDewhurst8onDAarconsiredaquantitavesytmaic.WherestheFMguilis,whichremlruleofthumbdeivedfomexperiencprofeionals,amorqualiavendlesormal9.3ConvetionlconveorstedsignDesignandmnufacturingofonveyrstemisaverycomplxtimeonsumproces.Aveconveostemisacustommadeproduct,achojctvariesfromerotherprojeintermsofsizeproductandlyout.ThesytmdesignFig.1Layoutfconveyrstemforlbeligplasibtl53isbaedonclientrquiremntsandproductspecifiations.Moreover,thesytmlayouthatofitinthepaeprovidedbythecompany.Tprocesofdesigningalyoutforaconveyorsteminvolverviionsandcouldtkefromdastomonthsorinsomnstancesyrs.Onewihheminimumcosandmximumclientsuibilitmostlkeytogetapproval.Fgure1showaschemilutoftypicalonveyorsytminstaldinproductonineusedforlbeingofplacbotes.Dferntsecionsoftheconveorstemaridentifibypecifithnialnames,whihaecommonlyusednsmilarndusrilpplicton.Tsinglizrsectionnabletheproductoformntoonelanefommultipllanes.Tslowdownablerducesthepeedofproduconceitxitfromfilr,lbel,c.Tmasflowsectionsusdokeepupwithhighspeedproce,.g.,filr,labeler,tc.Thetransferabletransfrsthedirctionofproductflow.purposofthesdifntconveyoseonsishusocontroltproducflowthroughdiferntprocngmachines.Atypicalmehanicalonveyorstemusdinfoodandbeverageppltionsistofovetwhundrmechanillctilparsdependingonthesizeofthesytm.Someoftheommonbutentialcomponenthacouldbestandardisedandcumulatdofmilesoftonveoryemdefrms,paerbas,ndplat,coverplates,insdebendplate,outidebendplateberksndhafdrve,tailslve.Theszequantiyofthesepartsvaryacordingotheengthofconveyorsctonsandnumbeofksrespondingtowidthandpesofchainsrequird.Theproblmandshorcomingsnthecurrntdesgn,manufcturingandsemblyofmehanialonveyosaevarid,butinclude4AreasofimproventInordertoidentifythearesofcostrductionnmaterilandlabour,acostanalsioflminonveyorpaswconductedtoestimhepercentagecostofeachtirelationtoheotalcosofalsuchparts.Thepurposofhisnayssidentifytcritl,whichareminlyreponsibleforincreasngheosoftheonveyondthebyinvestgamansforducitcsucparts.Table1showtostanaliofa50sectiononveyorstem.henalyirevelsha12out15paronstiute79oftotamtalcostoftheconveyorstem,wherfurtherimprovementsindesignoreducthecosipossible.Outofthes,vepartwerdentifidasritalparthownbyaaerikTabl1constutngmximumnumbeofcomponentsnquantityndomprisover71ofoveralmterialcost.Amonghese,threcomponentslegst,idefmndsupporchannelwrfoundtoacountfor50oftheotalconveyormateicost.Adeilednalysieachse12partswcdoutonsirngtheprncplsofoncurrntngineeing,designformanufctureanddeignforaembly,andamprovesiwsdevelopedforechs10.Detilsofsimprovementofomesltmajorcomponentareprntedbelow.5RedsignoflegstseblInaconveyrstm,thelgsaremountdonthesideframetokeeptheenticonveyorstmoffthefloor.Texitngdesignofcorlgswork,butyarecoslytomanufcur,theyOverdesignofsomepartsHighcostcomponentLonghoursinvolvedinasembly/maintenancUseofnontandarparthavestabiityproblems,andcusdesindeliveries.Tlaiusualcusdbyomofthepartnotarvingfomoverseauppliersontime.TmoscilspecifiationsrequidfortheconveyolgsarTable1.ConveyrcitalprtsbaedonpartscotanlysiProductsriptLegst∗Sidframeupotchnel∗BenraksRt.lft∗TishftSpacerb∗uotwarstip∗rsidertiEndplatCovereBltsTrquarmbracketSlotcveInsidnpltQty68048139540132981978MaterilusedPlasticlegStube2.5mmChnlPlastic20d.Sshaft35itinleselX6401mmplasticPlastic2.5mm/S16mm.mm/mmSplatetainles2.5mm/Cost20.1675.436.7025.436.018.57129.07.6ImprovemntposibleYs/NoesYsNoesYsesNoYessetal∗Critclparts154StrengthtocaryonveyorloadabiliyEseofsemblaflxibilityforadjustingheight1andpart3inFig.2wasnotrigidenough.Theconnetionsforthesesareonlyingl6mmbolt.Atimes,whenconveyortmscarngfullproducloadstasobservedthatconveyorlegseunstablendcausedmchanilvibraion.OneofthemairsonsforthiswduetoasingleboltFigure2indicateslthepartsfortexistingdesignoftheconveyorlg.Theindicaednumberarhepartnumbersdesribedinable2,whihlsohowsbrekdownofcostanalycompletithlabourtimerquirdtoasemblompletstoflgs.Theexistinglgsupconsiofplticlegbrackeorderedfromoverea,tinlestelgtubes,whihreutintospecifisiz,lubeplaicdjusmntcaclppeontthelegtubeathebottomshowniFig.2.Lugs,whicharecutinsquaresiz,driledandeldedtohelegtubetoboltnglrosbracngndbackingplatsupportlegbrackests.TheofpartsinTable2signifienumberofomponentineachrtnumbethequantitystheconsumptionofpartilegdesign.Companiehaveusedthidesgnformanyyeasbutoneoftcmoncomplaintsreportdbytheclintwoftheinsabilityoflegs.Fromaninianvestigaon,tbecmearthatheconnetionbetwthestinleelubandplsticlegsbraketpartFig.2ExistngledsignasemblywithpartnameshowTab1Table2.Costanlysiforldegsinasemblyconnetionaechndofthelugsinpar3apar7.Theabiliyofheonveyoriscideredctilmteandequirsrectfiatimmediatltatsfyusomrxpections.Consderingheproblemofheexistingonveyorlegdesignandtheclentsfrncs,anewdegnfortheconveyorlegwsveoped.Genealyttbilityandtsrengthofthegserconsiderdsheprimarcreiforimprovementinthenewsgnproposlbutotheonsderatonswertsmplcyofign,minimsationofoversepasndasofaemblathepointofcommoning.Figur3how,thenewdesignofconveyorslegasmbly,andTblegivesacrptonandtostofchpart.Figure3showhahenewdesignconsistofonlyfimainpartsfortheconveyorslegcomredtoeghtmanpartstheolddeign.Intolddeign,tplasiclgbrcket,helegtubeplastcdjusmentandhelegtubeerthemosxpensiveiemsountingfor72oftcosoflasmbly.IntnewPrtn.15,647238PartscriptolasticlegbracketLeupstidjustmnAnglcrosbracigBakiplteLetuolsofparts24126Qty2126Cost30.284.50.23.0SourceOversaInhouseIsnhouIseTtaemblycostwelding15l19174.
编号:201311171612167148    大小:463.59KB    格式:PDF    上传时间:2013-11-17
  【编辑】
5
关 键 词:
教育专区 外文翻译 精品文档 外文翻译
温馨提示:
1: 本站所有资源如无特殊说明,都需要本地电脑安装OFFICE2007和PDF阅读器。图纸软件为CAD,CAXA,PROE,UG,SolidWorks等.压缩文件请下载最新的WinRAR软件解压。
2: 本站的文档不包含任何第三方提供的附件图纸等,如果需要附件,请联系上传者。文件的所有权益归上传用户所有。
3.本站RAR压缩包中若带图纸,网页内容里面会有图纸预览,若没有图纸预览就没有图纸。
4. 未经权益所有人同意不得将文件中的内容挪作商业或盈利用途。
5. 人人文库网仅提供交流平台,并不能对任何下载内容负责。
6. 下载文件中如有侵权或不适当内容,请与我们联系,我们立即纠正。
7. 本站不保证下载资源的准确性、安全性和完整性, 同时也不承担用户因使用这些下载资源对自己和他人造成任何形式的伤害或损失。
  人人文库网所有资源均是用户自行上传分享,仅供网友学习交流,未经上传用户书面授权,请勿作他用。
0条评论

还可以输入200字符

暂无评论,赶快抢占沙发吧。

当前资源信息

4.0
 
(2人评价)
浏览:26次
英文资料库上传于2013-11-17

官方联系方式

客服手机:13961746681   
2:不支持迅雷下载,请使用浏览器下载   
3:不支持QQ浏览器下载,请用其他浏览器   
4:下载后的文档和图纸-无水印   
5:文档经过压缩,下载后原文更清晰   

相关资源

相关资源

相关搜索

教育专区   外文翻译   精品文档   外文翻译  
关于我们 - 网站声明 - 网站地图 - 友情链接 - 网站客服客服 - 联系我们
copyright@ 2015-2017 人人文库网网站版权所有
苏ICP备12009002号-5