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1、注塑成型机工作原理及操作OperationprincipleandoperationofinjectionmoldingmachineHttp://china.toocle.comDecember200902,09:41ChinaHydraulicMachineryNetworkBusinessAssociation,December,02hearingInjectionfunctionofacomplexshape,sizeprecisionorwithplasticmetalinsertisdense,is
2、widelyusedinnationaldefense,electronics,automotive,transportation,buildingmaterials,packaging,agriculture,education,healthanddailylifeinvariousfields.Theinjectionmoldingprocesshasgoodadaptabilitytovariousplasticsprocessing,highproductioncapacity,andeasytorea
3、lizeautomation.Today,withtherapiddevelopmentoftheplasticsindustry,injectionmoldingmachinesoccupyanimportantpositionbothinquantityandinvariety,thusbecomingoneofthefastestgrowingandmostproductivemachinesinthecurrentplasticsmachineryindustry.Plasticinjectionmol
4、dingtechnologyisdevelopedaccordingtodiecastingprinciplefromtheendofnineteenthCenturyandthebeginningoftwentiethCentury.Itisoneofthemostpopularmethodsinplasticprocessingatpresent.Themethodisapplicabletoallthermoplasticsandsomethermosettingplastics(approximatel
5、y1/3oftotalplastics).1、theworkingprincipleofinjectionmoldingmachineTheworkingprincipleofinjectionmoldingmachineandinjectionsyringewithsimilar,itistheuseofscrew(orpiston)thrust,theplasticizinggoodmoltenstate(i.e.viscousflow)plasticinjectedintothemoldcavityclo
6、sedgoodaftercuringstereotypesmadetheprocessoftheproducts.Injectionmoldingisacycleprocess,eachcyclemainlyincludes:quantitativefeeding-meltplasticization-pressureinjection-moldcooling-dieopeningpieces.Takeouttheplasticpartsandthenclosethedieforthenextcycle.2、t
7、hestructureofinjectionmoldingmachineInjectionmoldingmachinebasedonplasticizingisdividedintotheplungertypeinjectionmoldingmachineandscrewtypeinjectionmoldingmachine,pressmachineanddrivemodecanbedividedintohydraulic,mechanicalandhydraulic-mechanical(rod)type,a
8、ccordingtotheoperationmodeisdividedintoautomatic,semi-automaticandmanualinjectionmoldingmachine.(1)horizontalinjectionmoldingmachine:Thisisthemostcommontype.Thedieclosingpartandtheinjectionparta
