塑料模具專業(yè)英語.ppt

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UnitOneMoldConstructions,PassageOnePlasticsFormingandMolds,PassageTwoThree-plateInjectionMolds,Moldmuld模具Constructionsknstrkn結(jié)構(gòu)Passagepsid段落Plasticsplstiks塑料Formingf:m形成和成型platepleit碟,盤,金屬板,板塊Injectionindekn注射,第一段塑料成型與模具,模具結(jié)構(gòu),第二段三板式注射模具,UnitOneMoldConstructions,PassageOnePlasticsFormingandMolds,1,1.Generaldenrl一般,大體,概要Thecontinuingdevelopmentofinjectionmoldtechnologydemandsmoreandmoreoftheprocesses.,continuekntinju:v.繼續(xù),連續(xù)；developmentdivelpmntn.發(fā)展,顯影technologyteknldin.技術(shù),工藝；demandsdim:ndv.要求processesprsesn.過程，工藝流程,undoubtedlyndatidliad.無疑(畢定)moldingshop成型車間influenceinflunsv.影響ifany”引出轉(zhuǎn)折狀語從句，譯為“即便要”。on對，依賴,Themostimportantproblemintheprocessofinjectionmoldingisundoubtedlythecorrectdesignofinjectionmold，becausethemoldingshophaslittleinfluence，ifany，ontheconstructionofthemachine.,第一段塑料成型與模具,UnitOneMoldConstructions,Efficientproductionofthemostdiverseinjection-moldedpartsdependsprimarilyontheinjectionmold.,模具結(jié)構(gòu),Thedurabilityofthemoldsdependsontheircareandtreatment.Sincethemovingcomponentsandcavityofthemoldarealwayshardenedandground，theyshouldproducebetween500000and1000000000shots.,高效率地生產(chǎn)各類注射成型零件首先取決于注射模具。diversedaiv:sa.不同的,多種多樣的,模具的使用壽命取決于對它們的維護保養(yǎng)和加工處理，例如對一些活動件及型腔的表面硬化和磨削加工，使得它們的生產(chǎn)批量可以達到5000001000000000件。Grindgraind（ground，ground）v.磨削，磨光,Foreaseofconstructionandtolowermanufacturingcost，injectionmoldsarebecomingstandardized.Somefirmsofferready-madebasesofsquareorrounddesignasstandardorstripperplatemoldsforimmediateuse.Onlytheinsertsthenhavetobefittedintothebases.,UnitOneMoldConstructions,為了簡化模具結(jié)構(gòu)和降低制造成本，使注射模具標(biāo)準(zhǔn)化，許多制造商提供了已經(jīng)生產(chǎn)好的標(biāo)準(zhǔn)方形或圓形底及脫模板供直接使用，僅需要將它們很好地與機座配合起來就可以了。,firmf:ma.堅定的,堅固的,結(jié)實的；n.商行,公司standardizestnddaizv.標(biāo)準(zhǔn)化,使合于標(biāo)準(zhǔn)insertins:tv.插入,UnitOneMoldConstructions,2.BasicMoldConstruction（1）OperatingPrincipleBasicallytheinjectionmoldconsistsoftwohalves.Onemoldhalfcontainsthespruebushingandrunnersystem，theotherhalfhousestheejectionsystem.Themoldedpartislocatedatthepartingline（ref.ToDIN16700）.,模具結(jié)構(gòu),2.模具的基本結(jié)構(gòu)（1）工作原理從根本上說，注射模具包括兩個部分:一部分包括澆口和澆注系統(tǒng)，另一部分是放置頂出系統(tǒng)。模具零件是在分型面被定位的（參考DIN16700）。,basicallybeisikliad.基本上,主要地Consistsofknsistv.由組成halvesh:vz同分?jǐn)?shù)islocatedat被放置在DIN16700德國標(biāo)準(zhǔn)化組織16700,（2）SingleorMulticavityMoldsTosetupacalculationconceivingthechoiceofcavitiesinaninjectionmoldrequiresaccurateknowledgeofthematerialtobeprocessed，oftheinjection-moldingmachineandofthemolds.Themoldcostsincreasewiththerisingnumberofcavitiesandtherelativemachinecostsdecrease.,UnitOneMoldConstructions,（2）單型腔注射模具及多型腔注射模具注射模具型腔選擇等設(shè)計計算要求掌握加工材料、注射機和模具等方面的準(zhǔn)確知識。模具的制造成本隨著型腔數(shù)目的增加而增加，而相關(guān)的加工費用減少了。,single-cavitymold單型腔注射模具multicavitymold多型腔注射模具calculationklkjuleinn.計算conceiveknsi:vv.構(gòu)思,以為,懷孕beprocessed被加工relativereltiva.相對的,比較的,Theproductiontimerequiredforagivenmoldedpartdependsonthewallthickness，theinjectionspeed，therecoveryrate，thetimerequiredtocoolthemoldedmaterial，thecoolingcapacityofthemoldandthenecessaryincidentaltimesuchasdurationofpressureholdingtime，ejectiontime，delaytime，etc.,UnitOneMoldConstructions,一個給定的模具零件的生產(chǎn)周期取決于壁厚、注射速度、收縮率、模內(nèi)材料的冷卻時間、冷卻的效能及必要的輔助時間，如壓力持續(xù)時間、排氣時間及延遲時間等。,Recoveryraterikvri回收率,復(fù)原Capacitykpsiti容量,容積,能量,生產(chǎn)力incidental,insidentl附帶的,伴隨的,輔助的suchas例如Durationdjurein持續(xù),持久;持續(xù)期間,Thereforethedecisionconcerningthenumberofcavitiestobedetermineddependson:sizeoftheorder（numberofmoldedpartsinconnectionwithdeliverytime）;shapeofthemoldedparts（size，qualityrequirements）;,UnitOneMoldConstructions,因此確定型腔數(shù)量的主要因素涉及以下幾點:訂單大小（制品數(shù)量及相關(guān)交貨時間）;制品形狀（尺寸、質(zhì)量要求）;,Thereforef:因此;因而;所以Concerningkns:ni關(guān)于，因素Cavitieskviti型控母模Order訂購;訂貨，匯票,匯單Deliverydilivri交付,交貨Shapeeip形狀;樣子,外形,injection-moldingmachine（clampingforce，plasticizingandinjectioncapacity）;moldcosts.Thereareseveralknownproceduresforcalculatingtheeconomicalnumberofcavities.Unfortunatelytheyaresovariedthatitisimpossibletocondensethem.,UnitOneMoldConstructions,clampingforceklmp夾緊力，合模力Capacitykpsiti容量,容積Proceduresprsi:d程序;方法;步驟Unfortunately遺憾地;不幸地Condensekndens壓縮;濃縮；使簡潔,縮短,注射機（合模力、可塑性、注射容量）;模具費用。盡管已有多種計算經(jīng)濟型腔數(shù)目的方法，但這些計算方法多種多樣，根本沒法將它們提煉成為簡便公式。,Asanexample:Thetheoreticalmax.numberofcavitiesis:F1=Max.injectionvolumeofmachine（cm3）/Volumeofmoldedparts，sprueandrunner（cm3）F2=Plasticizingcapacity（cm3/min）/Numberofshots/min（part，sprueandrunner（cm3）F2mustbeequaltoorsmallerthanF1.F1isthemaximumnumberofcavitiesattainable.,UnitOneMoldConstructions,plasticizeplstisaizv.（使）成為可塑;（使）可塑injectioncapacity注射容量Theoreticaliretikl理論的Spruespru:注料口;澆注口,例如:型腔的理論最大數(shù)目為：F1=注射機注射容量的最大值（cm3）/制件、注料口和流道體積（cm3）F2=注塑容量（cm3/min）/制造數(shù)量/min（制件、注料口和流道（cm3）F2必須小于等于F1，F(xiàn)1是可得到的型腔數(shù)目的最大值。,UnitOneMoldConstructions,動模座板,頂料板（Ejectorplate）,頂料桿，出料桿,注塑機頂桿,導(dǎo)柱/導(dǎo)套,墊腳，模腳,凸模板,凹模板,冷卻水道,定位環(huán),主流道,主流道襯套,澆注系統(tǒng),靜模座板,導(dǎo)柱,導(dǎo)套,動模墊板,UnitThreeMoldConstructions,PassageTwoThree-plateInjectionMolds,2,Three-plateinjectionmoldsareinjectionmoldspossessingtwopartinglines，havingbeendesignedasdegatingmolds.,Thismeansthatthesprueisseparatedfromthepartsinthemold.Attheconclusionofinjectionthemoldopensatthefirstpartingline，whichcontainsthesprueandrunnerandseparatedthepinpointgatefromthepart.,三板式注射模具是具有兩個分型面的注射模具，這種模具帶有澆口,也就是直澆道在模型中和塑件相分離。在注射結(jié)束之后，模具沿第一層分型面開模，其中包含了注料口、澆道和塑件中分流的針孔型澆口。,possessingpzes擁有,持有;具有;占有；Means意味著；sprue；spru:直澆道；isseparated被分離；conclusionknklu:n結(jié)尾,結(jié)局,UnitOneMoldConstructions,模具結(jié)構(gòu),Onlywhenthesecondpartinglineopened，thepartwouldbereleased.Thereareseveralpossibilitiesforachievingthis.,僅當(dāng)沿第二層分型面開模時，塑件才脫離型芯。有多種可能性來實現(xiàn)這種情況。,wouldbereleasedrili:s放松,松開possibility,psbiliti可能性Achievingti:v完成,實現(xiàn),UnitOneMoldConstructions,模具結(jié)構(gòu),InFig.3-1，withshortstrokedistancesofplate2，compressionspring4orspringwasherscanbeinsertedbetweenplate1andplate2，whichpushplate2forward.Thestop3limitsthestroke.,在圖3-1中，模板2具有一個短小的行程距離，壓縮彈簧4或彈簧墊圈可以插入模板1和模板2之間，推動模板2向前，而止動銷3則可以限制模板2的行程。,Fig.3-1Springtype1plate;2pushplate;3stop;4compressionspring,Fig.figurefig的縮寫圖表;圖解;插圖strokestruk沖程,行程,UnitOneMoldConstructions,Theretentionsystemofplate1showninFig.3-2isoftenemployed.Dowel2isprovidedwithanannulargroove3intowhichtheballcatch4ispushed.Anottooheavyplatecanbecarriedalongbytheresultantadhesiveeffect.,模具結(jié)構(gòu),Fig.3-2Retentionsystem1plate;2dowel;3annulargroove;4ballcatch,在圖3-2中，模板1在滯留系統(tǒng)中也經(jīng)常被使用。定位銷2中有一個環(huán)形凹槽3可以使球掣4進入，一塊不太厚的模板可以沿著黏合面而移動。,retentionsystemritenn保留;保持Isemployedimpli使用,利用；Doweldaul定位銷nnularnjul環(huán)狀的,輪狀的;有環(huán)紋的groovegru:v溝;槽Resultantrizltnt組合的,合成的Adhesivedhi:siv粘的;粘著的;effectifekt效果,效力;作用;,UnitThreeMoldConstructions,Theplate2tobemovedinFig.3-3isconnectedtotheejectorplatesbyejectorrods，whichinturnarefixedintheirbasicpositionbystrongspring3.Plate2iscarriedalonguntiltheejectorplatesarestoppedbyrunningagainsttheejectorbarofthemachine.,圖3-3中的模板2通過頂料桿和頂料板相連。頂料桿由強度很大的彈簧3依次固定在它們的基本位置。模板2被移動直到頂料板由于撞上機器的推出桿而停止。,Fig.3-3Three-plateinjectionmold1plate1;2plate2;3spring;4ejectorrod;5ejectorbar,isconnectedto通過.被連接bemovedin被搬入inturn依次，輪流iscarriedalong被移動；runningagainst撞上,UnitThreeMoldConstructions,當(dāng)一個完整的模型保持正常方式運行時，需注意推出桿5應(yīng)設(shè)計得稍長點。,Thenonlythecompletemoldbodykeepsmovingonintheusualmanner.Caremustbetakenwiththisdesignthattheejectorbar5isslightlydelayed.,ejectorbar推出桿delayed.1.延緩;使延期2.耽擱;延誤,UnitOneMoldConstructions,Theymustnotberigidlyconnectedtotheejectorplate;otherwisetherewouldbeatendencyforthepartstobepushedbackintothecavitiesinplate2.Withthisdesignthestrokeofplate2canbearbitrary,模具結(jié)構(gòu),Moreover，whentheejectorrods4arehardenedandguidedinbushes，theseejectorrodscantakeoverthefunctionoftheguidepinsfittedonthefixedmoldhalf，,頂料桿不能和頂料板剛性相連，否則塑件將會有被推回模板2型腔的可能。對于這種設(shè)計，模板2的行程可以是任意的。,而且當(dāng)頂料桿4被加固并且用軸套引導(dǎo)時，這些頂料桿可替代導(dǎo)向銷的作用來與定模部分配合，,Rigidlyrididli僵硬地;嚴(yán)厲地;嚴(yán)格地;固執(zhí)地Otherwisewaiz否則tendencytendnsi傾向;趨勢Arbitrary:bi,trri隨心所欲的,任意的,UnitOneMoldConstructions,sothatthespacebetweenplates1and2isnotclutteredupwithprotrudingrodsorsprings.Thiscanbeofadvantageifarathercomplicatedrunnersystemhastobedesigned.,模具結(jié)構(gòu),所以在模板1和模板2之間不能亂放伸出桿或彈簧。如果要設(shè)計一個非常復(fù)雜的澆道系統(tǒng)，這種方法具有優(yōu)勢。,Clutterklt使凌亂;亂堆在,塞滿(+up)Protrudingprtru:dvt伸出,突出Springs彈簧Ratherr:相當(dāng),頗,有點兒Complicatedkmplikeitid復(fù)雜的,UnitOneMoldConstructions,模具結(jié)構(gòu),Fig.3-4showsamechanicaltypeofplatemovement.Althoughmoreelaborate，itisneverthelessthesafestway，particularlyiflarge，heavyplateshavetobemoved.Thelatch3，whichhooksoverplate1，movesthelatteralong.,圖3-4所示為平板運動的機械形式。雖然這種形式更為精細，但這無疑是最安全的方法，特別是當(dāng)大而重的平板需要被移動時。掛在模板1上的插銷3沿著模板移動，,Fig.3-4Platemovement1plate;2pin;3latch;4guidestrip;5leafspring;6waterway,elaborateilbrit精細,精心制作的nevertheless,nevles仍然,不過,然而hookhuk鉤住,圖3-4模板運動1模板;2銷;3插銷;4導(dǎo)軌;5片彈簧;6冷卻水道,UnitOneMoldConstructions,模具結(jié)構(gòu),Themovementiscontinueduntilthepin2inthehookisliftedbytheriseintheguidestrip4onwhichitruns.Thepinhastoescapeupward，therebyreleasingthehookfromtheplate2.Theplatenowpushesupagainstastop，whichinthiscasehasbeenfittedtotheundersideoftheguidestripat6，andthemoldcancontinueopening.,直到銷被滑塊抬起，銷不得不向上移動，所以釋放了模板1上的掛鉤。這時模板反向止動銷向上推，在這種情況下，止動銷已在6處與導(dǎo)軌的下側(cè)相配合，所以模具能一直打開。,escapeiskeip逃跑;逃脫thereby因此,由此,從而guidestripstrip支板;導(dǎo)軌,UnitOneMoldConstructions,Thehookispusheddownagainbytheleafspring5.,模具結(jié)構(gòu),Fig.3-5illustratesatypicaldegatingtool.Contrarytotheusualmolddesign，thistoolhasanadditionalmoldpartinglineforthestar-shapedrunner.,然后，掛鉤再一次被片彈簧5向下拉。,圖3-5所示為一典型注塑模具。與通常的模具設(shè)計不同，在此模具中為星形流道設(shè)計了一個附加的模具分型線。,illustratesilstreit(用圖,實例等)說明,闡明(+with)Contrarykntrri相反的,對立的(+to)additionaldinl添加的;附加的;額外的,UnitThreeMoldConstructions,Fig.3-5Typicaldegatingtool1sprueseparatingarea;2latch;3sprue;4retainerpin;5headofbolt;6sprue-strippingplate;7pin;8guidestrip;9waterway;10bolt;11mainpartingline;12ejectorrod;13strippersleeve;14plateassembly;15moldcores,圖3-5典型注塑模具1澆道分離面;2、10插銷;3直澆道;4固定銷;5、10插銷頭;6注料口分模板;7銷;8導(dǎo)軌;9冷卻水道;11主要分型線;12卸料桿;13分型（模）套;14模板裝置;15模具型芯,UnitOneMoldConstructions,Moldconstructedonthisprincipleispreferablyemployedbecauseofthesimplicityofthegatingtechnique.,模具結(jié)構(gòu),Butthereissomeconcernthatbulkyrunneroftendonotdropeasilybetweenthemoldpartinglines.Itisimportantthatasufficientlylargegapalwaysbeset.,因為有簡單的脈沖選通技術(shù)，所以用這種方法設(shè)計的模具更適于使用。,但是需要注意的是，通常大澆道不易滴在分型線之間，所以大的間隙設(shè)計是非常重要的。,Constructedknstrkt建造,構(gòu)成，設(shè)計；principleprinspl原則;原理preferablyprefrbli更好地employed,emplii:使用concernkns:n使擔(dān)心;使不安，要注意（about/for)bulkyblki體積大的,龐大的;過大；sufficientlysfintli足夠地,充分地,UnitOneMoldConstructions,Attheconclusionofinjectionthemoldfirstpartedat1inthesprueseparatingareawhenthemachineopens.,模具結(jié)構(gòu),Thecompletemoldblock，withtheexceptionofthefixedmoldhalf，isinterlockedwithinitselfbythelatch2.,一個完整的動模部分，由其余的固定板通過插銷2使它們連接在一起，,當(dāng)注射成型結(jié)束時，隨著機器的打開，模具將首先在澆道分離面1處分型。句中短語“Attheconclusionof”譯為“當(dāng)完結(jié)時”。,conclusionknklu:n終結(jié),結(jié)束Exceptioniksepn例外;,UnitOneMoldConstructions,Asthesprue3isheldcaptivebytheintheretainerpin4，thepartisseveredfromthesprue，whichstaysonthefixedhalf.Whentheheadofthebolt5catchesthesprue-strippingplate6，thisismovedforward，therebystrippingthespruefromtheretainingpin4.,模具結(jié)構(gòu),直澆道3被固定銷4中的下陷所約束。塑件從直澆道被切斷，直澆道繼續(xù)停留在靜模部分。當(dāng)插銷頭5的銷頭到達注料口分模板6時，這次運動停止，從而直澆道從止動銷4中脫模。,UnitOneMoldConstructions,模具結(jié)構(gòu),當(dāng)一連串運作完成時，插銷2中的銷7在位置9處沿著導(dǎo)軌8到達傾斜面，強制抬起插銷從而結(jié)束互鎖。,Whenthesequencehasbeencompleted，thepin7oflatch2hasarrivedattheinclinedplaneoftheguidestrip8inposition9，forciblyliftingthelatchandtherebyendingtheinterlock.,Sequencesi:kwns連續(xù);一連串inclinedinklaind傾斜的interlock.,intlk互鎖,UnitOneMoldConstructions,Theheadofbolt10reachedtheplatesalongthefixedposition.Thecontinuingsequenceoftheopeningmovementconsistsoftilemoldopeningatthemainpartingline11，therebycreatingthedrop-outopeningfortheejectedpart.,模具結(jié)構(gòu),插銷10的銷頭沿著固定方向到達模板。繼續(xù)進行的開模運動由塑料模型在主要分型面11處的開模組成，從而為塑件創(chuàng)造了脫落條件。,Sequencesi:kwns連續(xù)動作;一連串動作consistsofknsist組成,構(gòu)成,UnitOneMoldConstructions,Astheopeningsequencecontinues，theheadofejectorrod12pushesagainsttheejectorofthemoldingmachineandstopstheplateassembly14aswellasthestrippersleeve13.,模具結(jié)構(gòu),Themoldcore15fittedintotheplateassembly14withdrawsfromthepart，andtheejectionprocessisconcluded.,當(dāng)開模動作繼續(xù)進行時，頂料桿12的桿頭推動模具的推出機構(gòu)，使動模座板14和分型套13停止。,裝在凹模固定板14中的型芯15從塑件中退出，從而注射過程結(jié)束。,aswellas還有”、“不但而且,UnitOneMoldConstructions,謝謝觀看！,模具結(jié)構(gòu),