塑料模具專業(yè)英語.ppt

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UnitOneMoldConstructions,PassageOnePlasticsFormingandMolds,PassageTwoThree-plateInjectionMolds,Mold[m?uld]模具Constructions[k?n‘str?k??n]結(jié)構(gòu)Passage[‘psid?]段落Plastics[plstiks]塑料Forming[f?:m]形成和成型plate[pleit]碟,盤,金屬板,板塊Injection[ind?ek??n]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.General[‘d?en?r?l]一般,大體,概要Thecontinuingdevelopmentofinjectionmoldtechnologydemandsmoreandmoreoftheprocesses.,continue[k?n‘tinju:]v.繼續(xù),連續(xù)；development[di’vel?pm?nt]n.發(fā)展,顯影technology[tek‘n?l?d?i]n.技術(shù),工藝；demands[di’mɑ:nd]v.要求processes[pr?‘ses]n.過程，工藝流程,undoubtedly[?n‘da?tidli]ad.無疑(畢定)moldingshop成型車間influence[‘influ?ns]v.影響ifany”引出轉(zhuǎn)折狀語從句，譯為“即便要”。on對(duì)，依賴,Themostimportantproblemintheprocessofinjectionmoldingisundoubtedlythecorrectdesignofinjectionmold，becausethemoldingshophaslittleinfluence，ifany，ontheconstructionofthemachine①.,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。diverse[daiv?:s]a.不同的,多種多樣的,模具的使用壽命取決于對(duì)它們的維護(hù)保養(yǎng)和加工處理，例如對(duì)一些活動(dòng)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(dá)到500000～1000000000件。Grind[graind]（ground，ground）v.磨削，磨光,Foreaseofconstructionandtolowermanufacturingcost，injectionmoldsarebecomingstandardized.Somefirmsofferready-madebasesofsquareorrounddesignasstandardorstripperplatemoldsforimmediateuse.Onlytheinsertsthenhavetobefittedintothebases.,UnitOneMoldConstructions,為了簡(jiǎn)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(jī)座配合起來就可以了。,firm[f?:m]a.堅(jiān)定的,堅(jiān)固的,結(jié)實(shí)的；n.商行,公司standardize[‘stnd?daiz]v.標(biāo)準(zhǔn)化,使合于標(biāo)準(zhǔn)insert[ins?:t]v.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(gè)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）。,basically‘beisik?li]ad.基本上,主要地Consistsof[k?n‘sist]v.由…組成halves[hɑ:vz]同分?jǐn)?shù)islocatedat被放置在DIN16700德國(guó)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(jì)計(jì)算要求掌握加工材料、注射機(jī)和模具等方面的準(zhǔn)確知識(shí)。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(fèi)用減少了。,single-cavitymold單型腔注射模具multicavitymold多型腔注射模具calculation[klkju‘lei??n]n.計(jì)算conceive[k?n‘si:v]v.構(gòu)思,以為,懷孕beprocessed被加工relative[rel?tiv]a.相對(duì)的,比較的,Theproductiontimerequiredforagivenmoldedpartdependsonthewallthickness，theinjectionspeed，therecoveryrate，thetimerequiredtocoolthemoldedmaterial，thecoolingcapacityofthemoldandthenecessaryincidentaltimesuchasdurationofpressureholdingtime，ejectiontime，delaytime，etc.,UnitOneMoldConstructions,一個(gè)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(shí)間、冷卻的效能及必要的輔助時(shí)間，如壓力持續(xù)時(shí)間、排氣時(shí)間及延遲時(shí)間等。,Recoveryrate[ri‘k?v?ri]回收率,復(fù)原Capacity[k?‘psiti]容量,容積,能量,生產(chǎn)力incidental[,insi‘dentl]附帶的,伴隨的,輔助的suchas例如Duration[djurei??n]持續(xù),持久;持續(xù)期間,Thereforethedecisionconcerningthenumberofcavitiestobedetermineddependson:①sizeoftheorder（numberofmoldedpartsinconnectionwithdeliverytime）;②shapeofthemoldedparts（size，qualityrequirements）;,UnitOneMoldConstructions,因此確定型腔數(shù)量的主要因素涉及以下幾點(diǎn):①訂單大?。ㄖ破窋?shù)量及相關(guān)交貨時(shí)間）;②制品形狀（尺寸、質(zhì)量要求）;,Therefore[‘??f?:]因此;因而;所以Concerning[k?n‘s?:ni?]關(guān)于，因素Cavities[‘kviti]型控母模Order訂購;訂貨，匯票,匯單Delivery[di‘liv?ri]交付,交貨Shape[?eip]形狀;樣子,外形,③injection-moldingmachine（clampingforce，plasticizingandinjectioncapacity）;④moldcosts.Thereareseveralknownproceduresforcalculatingtheeconomicalnumberofcavities.Unfortunatelytheyaresovariedthatitisimpossibletocondensethem.,UnitOneMoldConstructions,clampingforce[klmp]夾緊力，合模力Capacity[k?‘psiti]容量,容積Procedures[pr?‘si:d??]程序;方法;步驟Unfortunately遺憾地;不幸地Condense[k?n‘dens]壓縮;濃縮；使簡(jiǎn)潔,縮短,③注射機(jī)（合模力、可塑性、注射容量）;④模具費(fèi)用。盡管已有多種計(jì)算經(jīng)濟(jì)型腔數(shù)目的方法，但這些計(jì)算方法多種多樣，根本沒法將它們提煉成為簡(jiǎn)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,plasticize［plstisaiz］v.（使）成為可塑;（使）可塑injectioncapacity注射容量Theoretical[θi?‘retik?l]理論的Sprue[spru:]注料口;澆注口,例如:型腔的理論最大數(shù)目為：F1=注射機(jī)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(dòng)模座板,頂料板（Ejectorplate）,頂料桿，出料桿,注塑機(jī)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(dòng)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(gè)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。,possessing[p?‘zes]擁有,持有;具有;占有；Means意味著；sprue；[spru:]直澆道；isseparated被分離；conclusion[k?nklu:??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(shí)，塑件才脫離型芯。有多種可能性來實(shí)現(xiàn)這種情況。,wouldbereleased[ri‘li:s]放松,松開possibility[,p?s?‘biliti]可能性Achieving[?t?i:v]完成,實(shí)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(gè)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(dòng)模板2向前，而止動(dòng)銷3則可以限制模板2的行程。,Fig.3-1Springtype1—plate;2—pushplate;3—stop;4—compressionspring,Fig.figure[‘fig?]的縮寫圖表;圖解;插圖stroke[str?uk]沖程,行程,UnitOneMoldConstructions,Theretentionsystemofplate1showninFig.3-2isoftenemployed.Dowel2isprovidedwithanannulargroove3intowhichtheballcatch4ispushed.Anottooheavyplatecanbecarriedalongbytheresultantadhesiveeffect.,模具結(jié)構(gòu),Fig.3-2Retentionsystem1—plate;2—dowel;3—annulargroove;4—ballcatch,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(gè)環(huán)形凹槽3可以使球掣4進(jìn)入，一塊不太厚的模板可以沿著黏合面而移動(dòng)。,retentionsystem[riten??n]保留;保持Is…employed[im‘pl?i]使用,利用；Dowel[dau?l]定位銷nnular[njul?]環(huán)狀的,輪狀的;有環(huán)紋的groove[gru:v]溝;槽Resultant[riz?lt?nt]組合的,合成的Adhesive[?dhi:siv]粘的;粘著的;effect[ifekt]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(qiáng)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(dòng)直到頂料板由于撞上機(jī)器的推出桿而停止。,Fig.3-3Three-plateinjectionmold1—plate1;2—plate2;3—spring;4—ejectorrod;5—ejectorbar,isconnectedto通過….被連接bemovedin被搬入inturn依次，輪流iscarriedalong被移動(dòng)；runningagainst撞上,UnitThreeMoldConstructions,當(dāng)一個(gè)完整的模型保持正常方式運(yùn)行時(shí)，需注意推出桿5應(yīng)設(shè)計(jì)得稍長(zhǎng)點(diǎn)。,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(huì)有被推回模板2型腔的可能。對(duì)于這種設(shè)計(jì)，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(shí)，這些頂料桿可替代導(dǎo)向銷的作用來與定模部分配合，,Rigidly[‘rid?idli]僵硬地;嚴(yán)厲地;嚴(yán)格地;固執(zhí)地Otherwise[‘??waiz]否則tendency[tend?nsi]傾向;趨勢(shì)]Arbitrary[‘ɑ:bi,tr?ri]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(jì)一個(gè)非常復(fù)雜的澆道系統(tǒng)，這種方法具有優(yōu)勢(shì)。,Clutter[kl?t?]使凌亂;亂堆在,塞滿[(+up)Protruding[pr?‘tru:d]vt伸出,突出Springs彈簧Rather[‘rɑ:?]相當(dāng),頗,有點(diǎn)兒Complicated[k?mplikeitid]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(yùn)動(dòng)的機(jī)械形式。雖然這種形式更為精細(xì)，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(dòng)時(shí)。掛在模板1上的插銷3沿著模板移動(dòng)，,Fig.3-4Platemovement1—plate;2—pin;3—latch;4—guidestrip;5—leafspring;6—waterway,elaborate[i‘lb?rit]精細(xì),精心制作的nevertheless[,nev??‘les]仍然,不過,然而hook[huk]鉤住,圖3-4模板運(yùn)動(dòng)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(dòng)，所以釋放了模板1上的掛鉤。這時(shí)模板反向止動(dòng)銷向上推，在這種情況下，止動(dòng)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。,escape[is‘keip]逃跑;逃脫thereby因此,由此,從而guidestrip[strip]支板;導(dǎo)軌,UnitOneMoldConstructions,Thehookispusheddownagainbytheleafspring5.,模具結(jié)構(gòu),Fig.3-5illustratesatypicaldegatingtool.Contrarytotheusualmolddesign，thistoolhasanadditionalmoldpartinglineforthestar-shapedrunner①.,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(jì)不同，在此模具中為星形流道設(shè)計(jì)了一個(gè)附加的模具分型線。,illustrates[il?streit](用圖,實(shí)例等)說明,闡明[(+with)]Contrary[k?ntr?ri]相反的,對(duì)立的[(+to)]additional[?di??n?l]添加的;附加的;額外的,UnitThreeMoldConstructions,,Fig.3-5Typicaldegatingtool1—sprueseparatingarea;2—latch;3—sprue;4—retainerpin;5—headofbolt;6—sprue-strippingplate;7—pin;8—guidestrip;9—waterway;10—bolt;11—mainpartingline;12—ejectorrod;13—strippersleeve;14—plateassembly;15—moldcores,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?yàn)橛泻?jiǎn)單的脈沖選通技術(shù)，所以用這種方法設(shè)計(jì)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(jì)是非常重要的。,Constructed[k?n‘str?kt]建造,構(gòu)成，設(shè)計(jì)；principle[‘prins?pl]原則;原理preferably[‘pref?r?bli]更好地employed[,empl?i‘i:]使用concern[k?n‘s?:n]使擔(dān)心;使不安，要注意（about/for)]bulky[‘b?lki]體積大的,龐大的;過大；sufficiently[s?fi??ntli]足夠地,充分地,UnitOneMoldConstructions,Attheconclusionofinjectionthemoldfirstpartedat1inthesprueseparatingareawhenthemachineopens②.,模具結(jié)構(gòu),Thecompletemoldblock，withtheexceptionofthefixedmoldhalf，isinterlockedwithinitselfbythelatch2.,一個(gè)完整的動(dòng)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(shí)，隨著機(jī)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(shí)”。,conclusion[k?n‘klu:??n]終結(jié),結(jié)束Exception[iksep??n]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(dá)注料口分模板6時(shí)，這次運(yùn)動(dòng)停止，從而直澆道從止動(dòng)銷4中脫模。,UnitOneMoldConstructions,模具結(jié)構(gòu),當(dāng)一連串運(yùn)作完成時(shí)，插銷2中的銷7在位置9處沿著導(dǎo)軌8到達(dá)傾斜面，強(qiáng)制抬起插銷從而結(jié)束互鎖。,Whenthesequencehasbeencompleted，thepin7oflatch2hasarrivedattheinclinedplaneoftheguidestrip8inposition9，forciblyliftingthelatchandtherebyendingtheinterlock.,Sequence[‘si:kw?ns]連續(xù);一連串inclined[in‘klaind]傾斜的interlock.[,int?l?k]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(dá)模板。繼續(xù)進(jìn)行的開模運(yùn)動(dòng)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。,Sequence[‘si:kw?ns]連續(xù)動(dòng)作;一連串動(dòng)作consistsof[k?nsist]組成,構(gòu)成,UnitOneMoldConstructions,Astheopeningsequencecontinues，theheadofejectorrod12pushesagainsttheejectorofthemoldingmachineandstopstheplateassembly14aswellasthestrippersleeve13.,模具結(jié)構(gòu),Themoldcore15fittedintotheplateassembly14withdrawsfromthepart，andtheejectionprocessisconcluded.,當(dāng)開模動(dòng)作繼續(xù)進(jìn)行時(shí)，頂料桿12的桿頭推動(dòng)模具的推出機(jī)構(gòu)，使動(dòng)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),