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单击此处编辑母版标题样式,单击此处编辑母版文本样式,第二级,第三级,第四级,第五级,*,本资料仅供参考，不能作为科学依据。谢谢。本资料仅供参考，不能作为科学依据。本资料仅供参考，不能作为科学依据。谢谢。本资料仅供参考，不能作为科学依据。,Unit One,Mold Constructions,Passage One,Plastics Forming and Molds,Passage Two,Three-plate Injection Molds,Mold,muld,模具,Constructions,knstrkn,结构,Passage,psid,段落,Plastics,plstiks,塑料,Forming,f:m,形成和成型,plate,pleit,碟,盘,金属板,板块,Injection,indekn,注射,第一段 塑料成型与模具,模具结构,第二段 三板式注射模具,1/31,2/31,Unit One,Mold Constructions,Passage One,Plastics Forming and Molds,1,1,.,General,denrl,普通,大致,概要,The continuing development of,injection mold,technology demands more and more of the processes.,continue kntinju:v.,继续,连续,；,development divelpmnt n.,发展,显影,technology teknldi n.,技术,工艺,；,demands dim:nd v.,要求,processes prses n.,过程，工艺流程,undoubtedly ndatidli ad.,无疑,(,毕定,)molding shop,成型车间,influence influns v.,影响,if any”,引出转折状语从句，译为“即便要”。,on,对，依赖,The most important problem in the process of injection molding,is undoubtedly the correct design of injection mold,，,because the,molding shop,has little influence,，,if any,，,on the construction,of the machine.,第一段 塑料成型与模具,3/31,Unit One,Mold Constructions,Efficient,production of the most,diverse,injection-molded,parts,depends,primarily,on,the injection mold.,模具结构,The,durability,of the molds depends on their,care,and,treatment,.,Since the,moving components,and,cavity,of the mold are always,hardened,and,ground,，,they should produce between 500 000 and,1 000 000 000,shots,.,高效率地,生产各类,注射成型,零件,首先,取决于,注射模具。,diverse daiv:s a.,不一样,各种多样,模具使用,寿命,取决于对它们,维护保养,和,加工处理,，比如对一些,活动件,及,型腔,表面硬化,和,磨削加工,，使得它们生产批量能够到达,500 000,1 000 000 000,件,。,Grind graind,（,ground,，,ground,）,v.,磨削，磨光,4/31,For,ease,of construction and to,lower,manufacturing,cost,，,injection molds are becoming,standardized,.Some,firms,offer,ready-made,bases of,square,or,round,design as standard or,stripper plate,molds for immediate use.Only the,inserts,then,have to,be fitted into,the bases.,Unit One,Mold Constructions,为了,简化,模具结构和,降低,制造,成本，使注射模具,标准化,，许多,制造商,提供了,已经生产,好标准,方形,或,圆形,底及,脱模板,供直接使用，仅需要,将,它们很好地与机座,配合,起来就能够了。,firm f:m a.,坚定,坚固,坚固；,n.,商行,企业,standardize stnddaiz v.,标准化,使合于标准,insert ins:t v.,插入,5/31,Unit One,Mold Constructions,2.,Basic,Mold Construction,（,1,）,Operating,Principle,Basically the injection mold consists of two,halves,.One mold half,contains,the,sprue bushing,and,runner system,，,the other half,houses,the,ejection system,.The molded,part,is located at,the parting line,（,ref,.To DIN 16700,）,.,模具结构,2.,模具,基本,结构,（,1,）,工作,原理,从根本上说，注射模具包含两个,部分,:,一部分,包含,浇口,和,浇注系统,，另一部分是,放置,顶出系统,。模具,零件,是在,分型面,被定位（参考,DIN 16700,）。,basically beisikli ad.,基本上,主要地,Consists of knsist v.,由,组成,halves h:vz,同分数,is located at,被放置在,DIN 16700,德国家标准准化组织,16700,6/31,（,2,）,Single,or,Multicavity Molds,To,set up,a,calculation,conceiving the choice of,cavities,in an injection mold requires,accurate,knowledge of the,material,to be,processed,，,of the,injection-molding machine,and of the molds.,The mold,costs,increase with the,rising,number of cavities and the relative machine costs decrease.,Unit One,Mold Constructions,（,2,）单型腔注射模具及多型腔注射模具,注射模具,型腔,选择等,设计,计算,要求掌握加工,材料,、,注射机,和模具等方面,准确,知识。模具制造,成本,伴随型腔数目标,增加,而增加，而相关加工费用降低了。,single-cavity,mold,单型腔注射模具,multicavity,mold,多型腔注射模具,calculationklkjulein n.,计算,conceive knsi:v v.,构思,认为,怀孕,be processed,被加工,relative reltiv a.,相正确,比较,7/31,The production time,required for,a given molded part,depends on,the wall thickness,，,the injection speed,，,the recovery rate,，,the time required to cool the molded material,，,the cooling,capacity,of the mold and the necessary incidental time such as duration of pressure holding time,，,ejection time,，,delay time,，,etc.,Unit One,Mold Constructions,一个给定模具零件,生产周期,取决于,壁厚、注射速度、,收缩率,、模内材料冷却时间、冷却,效能,及必要辅助时间，如压力连续时间、排气时间及延迟时间等。,Recovery rate rikvri,回收率,复原,Capacity kpsiti,容量,容积,能量,生产力,incidental ,insidentl,附带,伴随,辅助,such as,比如,Duration djurein,连续,持久,;,连续期间,8/31,Therefore,the decision concerning the number of cavities to be,determined,depends on,:,size of the order,（,number of molded parts in connection with delivery time,）,;,shape of the molded parts,（,size,，,quality requirements,）,;,Unit One,Mold Constructions,所以,确定,型腔数量主要原因,包括,以下几点,:,订单大小（制品数量及相关交货时间）,;,制品形状（尺寸、质量要求）,;,Therefore f:,所以,;,因而,;,所以,Concerning kns:ni,关于，原因,Cavities kviti,型控母模,Order,订购,;,订货，汇票,汇单,Delivery dilivri,交付,交货,Shape eip,形状,;,样子,外形,9/31,injection-molding machine,（,clamping force,，,plasticizing,and,injection capacity,）,;,mold costs.,There are several known,procedures,for calculating the economical number of cavities.,Unfortunately,they are so varied that it is impossible to,condense,them.,Unit One,Mold Constructions,clamping force klmp,夹紧力，合模力,Capacity,kpsiti,容量,容积,Procedures prsi:d,程序,;,方法,;,步骤,Unfortunately,遗憾地,;,不幸地,Condense kndens,压缩,;,浓缩；使简练,缩短,注射机（合模力、可塑性、注射容量）,;,模具费用。,尽管已经有各种计算经济型腔数目标,方法,，,但,这些计算方法各种多样，根本没法将它们,提炼,成为简便公式。,10/31,As an example:,The,theoretical,max.number of cavities is:,F,1=Max.injection,volume,of machine,（,cm3,）,/Volume of molded parts,，,sprue,and runner,（,cm3,）,F,2=Plasticizing capacity,（,cm3/min,）,/Number of shots/min,（,part,，,sprue and runner,（,cm3,）,F,2 must be equal to or smaller than,F,1.,F,1 is the maximum number of cavities attainable.,Unit One,Mold Constructions,plasticize,pl stisaiz,v.,（使）成为可塑,;,（使）可塑,injection capacity,注射容量,Theoretical iretikl,理论,Sprue spru:,注料口,;,浇注口,比如,:,型腔,理论,最大数目为：,F,1=,注射机注射,容量,最大值（,cm3,）,/,制件、注料口和流道体积（,cm3,）,F,2=,注塑容量（,cm3/min,）,/,制造数量,/min,（制件、,注料口,和流道（,cm3,）,F,2,必须小于等于,F,1,，,F,1,是可得到型腔数目标最大值。,11/31,Unit One,Mold Constructions,动模座板,顶料板,（,Ejector plate,）,顶料杆，出料杆,注塑机顶杆,导柱,/,导套,垫脚，模脚,凸模板,凹模板,冷却水道,定位环,主流道,主流道衬套,浇注系统,静模座板,导柱,导套,动模垫板,12/31,Unit Three,Mold Constructions,Passage Two,Three-plate Injection Molds,2,Three-plate injection molds,are,injection molds,possessing,two parting lines,，,having been designed as,degating,molds.,This means that,the sprue,is separated from the parts in the mold.At the conclusion of injection the mold opens at the first parting line,，,which contains the,sprue,and,runner,and separated the,pinpoint gate,from the part.,三板式注射模具,是,含有,两个分型面,注射模具,，这种模具带有,浇口,也就是,直浇道,在模型中和塑件相分离。在注射结束之后，模具沿第一层分型面开模，其中包含了,注料口,、,浇道,和塑件中分流,针孔型浇口,。,possessingpzes,拥有,持有,;,含有,;,占有；,Means,意味着；,sprue,；,spru:,直浇道,；,is separated,被分离；,conclusionknklu:n,结尾,结局,13/31,Unit One,Mold Constructions,模具结构,Only when the second parting line opened,，,the part,would be released.There are several,possibilities,for,achieving,this.,仅当沿第二层分型面开模时，,塑件,才脱离型芯。有各种,可能性,来,实现,这种情况。,would be released rili:s,放松,松开,possibility,psbiliti,可能性,Achieving ti:v,完成,实现,14/31,Unit One,Mold Constructions,模具结构,In Fig.3-1,，,with short,stroke,distances,of plate 2,，,compression spring,4 or,spring washers,can be inserted between plate 1 and plate 2,，,which push plate 2 forward.The,stop,3 limits the stroke.,在图,3-1,中，模板,2,含有一个,短小,行程距离,，,压缩弹簧,4,或,弹簧垫圈,能够插入模板,1,和模板,2,之间，推进模板,2,向前，而,止动销,3,则能够限制模板,2,行程。,Fig.3-1 Spring type,1plate;2push plate;3stop;4compression spring,Fig.,figure fig,缩写 图表,;,图解,;,插图,stroke struk,冲程,行程,15/31,Unit One,Mold Constructions,The,retention system,of plate 1 shown,in Fig.3-2,is,often,employed,.,Dowel,2 is provided with an,annular groove,3 into which the,ball catch,4 is pushed.A not too heavy plate can,be carried along,by,the resultant adhesive effect.,模具结构,Fig.3-2 Retention system,1plate;2dowel;3annular groove;4ball catch,在图,3-2,中,，模板,1,在,滞留系统,中也经常,被使用,。,定位销,2,中有一个,环形凹槽,3,能够使,球掣,4,进入，一块不太厚模板,能够沿着,黏合面而,移动,。,retention system,ritenn,保留,;,保持,Is employed,impli,使用,利用；,Dowel,daul,定位销,nnular,njul,环状,轮状,;,有环纹,groove,gru:v,沟,;,槽,Resultant rizltnt,组合,合成,Adhesive,dhi:siv,粘,;,粘着,;,effect,ifekt,效果,效力,;,作用,;,16/31,Unit Three,Mold Constructions,The plate 2 to be moved in Fig.3-3,is connected to,the,ejector plates,by,ejector rods,，,which,in turn,are fixed,in their basic position by,strong spring,3.Plate 2,is carried along,until the ejector plates are stopped,by,running against,the ejector bar,of the machine.,图,3-3,中模板,2,经过,顶料杆,和,顶料板,相连,。顶料杆由,强度很大弹簧,3,依次,固定,在它们基本位置。模板,2,被移动,直,到,顶料板,因为,撞上,机器,推出杆,而停顿。,Fig.3-3 Three-plate injection mold,1plate1;2plate2;3spring;,4ejector rod;5ejector bar,is connected to,经过,.,被连接,be moved in,被搬入,in turn,依次，轮番,is carried along,被移动；,running against,撞上,17/31,Unit Three,Mold Constructions,当一个完整模型,保持,正常,方式运行时，,需注意,推出杆,5,应设计得,稍,长点。,Then only the complete mold body,keeps,moving on,in the usual,manner.,Care must be taken,with this design that the ejector bar 5 is,slightly,delayed.,ejector bar,推出杆,delayed.1.,延缓,;,使延期,2.,耽搁,;,延误,18/31,Unit One,Mold Constructions,They must not,be,rigidly,connected to,the ejector plate;otherwise there would be a tendency for the parts,to be pushed back into,the,cavities,in plate 2.With this design the,stroke,of plate 2 can be,arbitrary,模具结构,Moreover,，,when the ejector rods 4,are hardened,and,guided,in bushes,，,these ejector rods can,take over,the,function,of,the guide pins,fitted on,the fixed mold half,，,顶料杆不能,和,顶料板,刚性,相连,，不然塑件将会有,被推回,模板,2,型腔,可能。对于这种设计，模板,2,行程能够是任意。,而且当顶料杆,4,被加固,而且,用轴套,引导,时，这些顶料杆可,替换,导向销,作用,来与,定模部分,配合,，,Rigidly rididli,僵硬地,;,严厉地,;,严格地,;,固执地,Otherwise waiz,不然,tendency tendnsi,倾向,;,趋势,Arbitrary :bi,trri,随心所欲,任意,19/31,Unit One,Mold Constructions,so that,the space between,plates 1 and 2 is not,cluttered up,with,protruding rods,or,springs,.This can,be of advantage,if,a rather,complicated,runner system,has to be designed.,模具结构,所以,在,模板,1,和模板,2,之间,不能,乱放,伸出杆,或,弹簧,。假如要设计一个,非常,复杂,浇道系统,，这种方法,含有优势,。,Clutter,klt,使凌乱,;,乱堆在,塞满,(+up),Protruding,prtru:d,vt,伸出,突出,Springs,弹簧,Rather,r:,相当,颇,有点儿,Complicated,kmplikeitid,复杂,20/31,Unit One,Mold Constructions,模具结构,Fig.3-4 shows,a mechanical type,of,plate,movement,.,Although,more,elaborate,，,it is,nevertheless,the safest way,，,particularly,if large,，,heavy plates have to be moved.The,latch,3,，,which,hooks over,plate 1,，,moves,the latter,along,.,图,3-4,所表示为,平板,运动,机械形式,。,即使,这种形式更为,精细,，但这,无疑,是最安全方法，,尤其,是当大而重平板需要被移动时。,挂在,模板,1,上,插销,3,沿着,模板,移动,，,Fig.3-4 Plate movement,1plate;2pin;3latch;4guide,strip;5leaf spring;6waterway,elaborate ilbrit,精细,精心制作,nevertheless ,nevles,依然,不过,然而,hook,huk,钩住,图,3-4,模板运动,1,模板,;2,销,;,3,插销,;4,导轨,;,5,片弹簧,;6,冷却水道,21/31,Unit One,Mold Constructions,模具结构,The movement is continued until the,pin,2 in the hook,is lifted,by the rise,in the,guide strip 4,on which it runs.,The pin has to,escape,upward,，,thereby,releasing the hook from the plate 2.The plate now,pushes up,against,a stop,，,which,in this case,has been,fitted to,the underside,of the,guide strip,at 6,，,and the mold can continue opening.,直到,销,被,滑块,抬起,，销不得不向上移动，,所以,释放,了模板,1,上挂钩。这时模板,反向,止动销,向上推,，,在这种情况下,，,止动销,已,在,6,处与,导轨,下侧,相配合,，所以模具能一直打开。,escape,iskeip,逃跑,;,逃脱,thereby,所以,由此,从而,guide strip,strip,支板,;,导轨,22/31,Unit One,Mold Constructions,The hook,is pushed down,again by the,leaf spring,5.,模具结构,Fig.3-5,illustrates,a typical degating tool,.,Contrary to,the usual mold design,，,this tool has an,additional,mold parting line for the,star-shaped runner,.,然后，挂钩再一次,被,片,弹簧,5,向下拉,。,图,3-5,所表示为,一经典注塑模具,。,与,通常模具设计,不一样,，在此模具中为,星形流道,设计了一个,附加,模具分型线。,illustrates ilstreit(,用图,实例等,),说明,说明,(+with),Contrary kntrri,相反,对立,(+to),additional dinl,添加,;,附加,;,额外,23/31,Unit Three,Mold Constructions,Fig.3-5 Typical degating tool,1sprue separating area;,2latch;,3sprue;,4retainer pin;,5head of bolt;,6sprue-stripping plate;,7pin;,8guide strip;,9waterway;,10bolt;,11main parting line;,12ejector rod;,13stripper sleeve;,14plate assembly;,15mold cores,图,3-5,经典注塑模具,1,浇道分离面,;2,、,10,插销,;,3,直浇道,;4,固定销,;,5,、,10,插销头,;6,注料口分模板,;,7,销,;8,导轨,;,9,冷却水道,;11,主要分型线,;,12,卸料杆,;13,分型（模）套,;,14,模板装置,;15,模具型芯,24/31,Unit One,Mold Constructions,Mold,constructed,on this,principle,is,preferably employed,because of the simplicity of the,gating technique,.,模具结构,But there is some,concern,that,bulky runner,often do not,drop,easily,between,the mold parting lines.It is important that a,sufficiently large gap,always be set.,因为有简单,脉冲选通技术,，所以用这种,方法,设计,模具,更适于使用,。,不过需要,注意,是，通常,大浇道,不易,滴,在分型线,之间,，所以,大,间隙设计是非常主要。,Constructed knstrkt,建造,组成，设计；,principleprinspl,标准,;,原理,preferablyprefrbli,更加好地,employed,emplii:,使用,concernkns:n,使担心,;,使不安，要注意（,about/for),bulky,blki,体积大,庞大,;,过大；,sufficientlysfintli,足够地,充分地,25/31,Unit One,Mold Constructions,At the conclusion,of injection the mold first,parted,at 1 in the,sprue separating area,when the machine opens,.,模具结构,The complete,mold block,，,with the,exception,of,the fixed mold half,，,is,interlocked,within itself by the latch 2.,一个完整,动模部分，,由其余,固定板,经过插销,2,使它们,连接在一起,，,当注射成型,结束,时，伴随机器打开，模具将首先在,浇道分离面,1,处,分型,。,句中短语“,At the conclusion of”,译为“当,完结时”。,conclusion knklu:n,终止,结束,Exception iksepn,例外,;,26/31,Unit One,Mold Constructions,As the,sprue,3,is held,captive,by,the,in the,retainer pin,4,，,the part,is severed from,the sprue,，,which stays on the fixed half.When the head of the bolt 5 catches the,sprue-stripping,plate 6,，,this is moved forward,，,thereby,stripping,the sprue from the retaining pin 4.,模具结构,直浇道,3,被,固定销,4,中,下陷,所,约束,。塑件,从,直浇道,被切断,，直浇道继续停留在静模部分。当插销头,5,销头抵达,注料口,分模板,6,时，这次运动停顿，从而,直浇道,从止动销,4,中脱模。,27/31,Unit One,Mold Constructions,模具结构,当,一连串,运作完成时，插销,2,中销,7,在位置,9,处沿着,导轨,8,抵达,倾斜面,，,强制,抬起插销从而,结束,互锁。,When the,sequence,has been completed,，,the pin 7 of latch 2 has arrived at the,inclined plane,of the,guide strip,8 in position 9,，,forcibly,lifting the latch and thereby,ending,the interlock.,Sequence si:kwns,连续,;,一连串,inclined,inklaind,倾斜,interlock.,intlk,互锁,28/31,Unit One,Mold Constructions,The head of bolt 10 reached the plates along the,fixed position,.The continuing,sequence,of the,opening movement,consists of,tile mold opening at the main parting line 11,，,thereby creating the,drop-out,opening for the ejected part.,模具结构,插销,10,销头沿着,固定方向,抵达模板。继续进行,开模,运动,由,塑料模型在主要分型面,11,处开模,组成,，从而为塑件创造了,脱落,条件。,Sequence si:kwns,连续动作,;,一连串动作,consists of knsist,组成,组成,29/31,Unit One,Mold Constructions,As the opening sequence continues,，,the head of,ejector rod,12,pushes against,the ejector of the molding machine and stops the,plate assembly,14 as well as the,stripper sleeve,13.,模具结构,The,mold core,15 fitted into the plate assembly 14 with,draws from,the part,，,and the ejection process is concluded.,当开模动作继续进行时，,顶料杆,12,杆头,推进,模具推出机构，使,动模座板,14,和,分型套,13,停顿。,装在凹模固定板,14,中,型芯,15,从,塑件中,退出,，从而注射过程结束。,as well as,还有”、“不但,而且,30/31,Unit One,Mold Constructions,谢谢观看！,模具结构,31/31,
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