2023學(xué)年完整公開課版BarCodeInspection

BarCodeTechnologyanditsapplication條碼的檢驗BarCodeInspection一、檢驗前的準(zhǔn)備工作PreparationBeforeInspection在對條碼標(biāo)識進(jìn)行檢驗前應(yīng)做好以下幾項工作：Thefollowingworkshouldbedonebeforethebarcodeidentificationinspection:1．環(huán)境1.TheEnvironment根據(jù)GB/T18348《商品條碼條碼符號印制質(zhì)量的檢驗》的要求，條碼標(biāo)識的檢驗環(huán)境溫度為（23±5）℃，相對濕度為30%～70%，檢驗前應(yīng)采取措施使環(huán)境滿足以上條件。檢驗臺光源應(yīng)為色溫5500～6500K的D65標(biāo)準(zhǔn)光源下，一般60W左右的日光燈管發(fā)出的光譜功率及色溫基本滿足這個要求。AccordingtotherequirementsofGB/T18348“InspectionofPrintingQualityofBarCodeforCommoditybarCodeSymbols”,theinspectionenvironmenttemperatureofbarcodesymbolsis(23±5)℃,andtherelativehumidityis30%-70%.Measuresshouldbetakentoensurethattheenvironmentmeetstheaboveconditionsbeforeinspection.ThelightsourceoftheinspectiontableshouldbeD65standardlightsourcewithacolortemperatureof5500~6500K.Generally,thespectralpowerandcolortemperatureemittedbyfluorescenttubesofabout60Wbasicallymeetthisrequirement.一、檢驗前的準(zhǔn)備工作PreparationBeforeInspection按照國際標(biāo)準(zhǔn)ISO/IECl5416和我國國家標(biāo)準(zhǔn)GB/T14258-2003、GB/T18348的要求，應(yīng)盡可能使被檢條碼符號處于設(shè)計的被掃描狀態(tài)對其進(jìn)行檢測。對不能在實物包裝形態(tài)下被檢測的樣品，以及標(biāo)簽、標(biāo)紙和包裝材料上的條碼符號樣品，可以進(jìn)行適當(dāng)處理，使樣品平整、大小適合于檢測，且條碼符號四周保留足夠的固定尺寸。對于不透明度小于0.85的符號印刷載體，檢測時應(yīng)在符號底部襯上反射率小于5%的暗平面。AccordingtotherequirementsoftheinternationalstandardISO/IECL5416andthenationalstandardsGB/T14258-2003andGB/T18348,thebarcodesymbolstobeinspectedshouldbeinthedesignedscannedstateforinspection.Forsamplesthatcannotbeinspectedintheformofphysicalpackaging,aswellasbarcodesymbolsamplesonlabels,paperandpackagingmaterials,appropriateprocessingcanbecarriedoutsothatthesampleisflatandthesizeissuitableforinspection,andsufficientfixedsizeiskeptaroundthebarcodesymbol.Forthesymbolprintingcarrierwithopacitylessthan0.85,adarkplanewithreflectivitylessthan5%shouldbelinedatthebottomofthesymbolduringinspection.2．樣品處理2.Thesampleprocessing一、檢驗前的準(zhǔn)備工作PreparationBeforeInspection可對不同載體的條碼標(biāo)識作以下處理：Thebarcodeidentifiersofdifferentcarrierscanbetreatedasfollows:（1）對于銅版紙、膠版紙來說因紙張變形張力小，一般只要稍稍用力壓平固定即可。(1)Forcoatedpaperandoffsetpaper,duetothesmalldeformationtensionofthepaper,itisgenerallyonlynecessarytopressthepaperwithalittleforcetofixit.（2）對塑料包裝來說，材料本身拉伸變形易起皺，透光性強(qiáng)。因此制樣時將塑料膜包裝上的條碼部分伸開壓平一段時間，再將其固定在一塊全黑硬質(zhì)材料板上。由于塑料受溫度影響大，所以樣品從室外拿到檢驗室后應(yīng)放置0.5～1小時,讓樣品溫度與室溫一致后再進(jìn)行檢驗。(2)Forplasticpackaging,thematerialitselfiseasilywrinkledwhenstretchedanddeformed,andhasstronglighttransmission.Therefore,whenmakingsamples,thebarcodepartontheplasticfilmpackageisextendedandflattenedforaperiodoftime,andthenitisfixedonanall-blackhardmaterialboard.Sincetheplasticisgreatlyaffectedbytemperature,thesampleshouldbeplacedfor0.5~1hourafterbeingtakentotheinspectionroomfromtheoutside,sothatthesampletemperatureisconsistentwiththeroomtemperaturebeforeinspection.（3）對馬口鐵來說，當(dāng)面積足夠大時，由于重力作用會產(chǎn)生不同程度的彎曲變形，因此檢驗前應(yīng)將樣品裁截至一定大小，一般尺寸為15cm×15cm以內(nèi)再將其輕輕壓平。(3)Fortinplate,whentheareaislargeenough,bendingdeformationofvaryingdegreeswilloccurduetogravity.Therefore,samplesshouldbecuttoacertainsizebeforeinspection,generallywithin15cm×15cm,andthengentlyflattened.一、檢驗前的準(zhǔn)備工作PreparationBeforeInspection（4）對于不干膠標(biāo)簽來說，由于材料背面有涂膠，兩面的張力不同，也會有不同程度的弧狀彎曲。檢驗前可將條碼標(biāo)簽揭下平貼至與原襯底完全相同的材料上，壓平后檢驗。(4)Forself-adhesivelabels,becausethematerialhasglueontheback,thetensionontwosidesisdifferent,andtherewillbedifferentdegreesofarcbending.Beforeinspection,thebarcodelabelcanbepeeledoffandpastedtothesamematerialastheoriginalsubstrate,andtheninspectedafterbeingflattened.（5）對于鋁箔（如易拉罐等）及硬塑料軟管（如化妝品等）等材料由于它們是先成型后印刷，因此應(yīng)對實物包裝進(jìn)行檢驗。(5)Foraluminumfoil(suchascans,etc.)andhardplastichose(suchascosmetics,etc.)andothermaterials,becausetheyarefirstformedandthenprinted,thephysicalpackagingshouldbeinspected.總之，在對樣品進(jìn)行檢驗前處理時，應(yīng)使樣品四周保留足夠的尺寸，避免變形彎曲或影響檢驗人員的操作。Insummary,whenthesampleistreatedbeforeinspection,sufficientsizeshouldbekeptaroundthesampletoavoiddeformation,bendingoraffectingtheoperationofinspectors.二、條碼檢測的方式BarCodeInspectionMethods1．檢驗項目1.InspectionitemsGB/T18348規(guī)定的檢測項目共12項，其中包括參考譯碼、最低反射率、符號反差、最小邊緣反差、調(diào)制比、缺陷度、可譯碼度、Z尺寸、寬窄比、空白區(qū)寬度、條高和印刷位置。GB/T18348stipulatesatotalof12detectionitems,includingreferencedecoding,minimumreflectivity,symbolcontrast,minimumedgecontrast,modulationratio,defectdegree,decodability,Zsize,widthratio,blankareawidth,barheightandprintingposition.三、條碼檢測的常用設(shè)備CommonlyUsedEquipment根據(jù)GB/T14258-2003檢驗方法的要求，對條碼符號進(jìn)行檢驗需要使用以下檢驗設(shè)備：AccordingtotherequirementsofGB/T14258-2003InspectionMethod,thefollowinginspectionequipmentshouldbeusedfortheinspectionofbarcodesymbols:(1)最小分度值為0.5mm的鋼板尺（用于測條高、放大系數(shù)）。(2)最小分度值為0.1mm的測長儀器（用于測量空白區(qū)）。(3)具有綜合分級方法功能的條碼檢測儀。(1)Steelrulerswithaminimumdivisionvalueof0.5mm(tomeasuretheheightofthebarandthemagnificationfactor).(2)Lengthmeasuringinstrumentwithaminimumdivisionvalueof0.1mm(tomeasuretheblankarea).(3)Barcodedetectorswithcomprehensivegradingmethodfunction.三、條碼檢測的常用設(shè)備CommonlyUsedEquipment針對不同的目的、應(yīng)用領(lǐng)域及對它們可能的功能所要求的程度條碼檢測常用設(shè)備分為兩類：通用設(shè)備和專用設(shè)備。Fordifferentpurposes,applicationfieldsandthedegreetowhichtheirpossiblefunctionsarerequired,equipmentcommonlyusedinbarcodeinspectioncanbedividedintotwocategories:generalequipmentandspecialequipment.通用設(shè)備包括密度計、工具顯微鏡、測厚儀和顯微鏡。Generalequipmentincludesdensitometers,toolmicroscopes,thicknessgaugesandmicroscopes.三、條碼檢測的常用設(shè)備CommonlyUsedEquipment專用設(shè)備一般分為兩類：便攜式條碼檢測儀和固定式條碼檢測儀。Specialequipmentisgenerallydividedintotwocategories:portablebarcodedetectorandfixedbarcodedetector.便攜式條碼檢測儀可以快速檢測合格與否，并且可以通過功能強(qiáng)大的檢測手段分析進(jìn)一步的詳細(xì)參數(shù)。固定式條碼檢測儀是一種專門設(shè)計的安裝在印刷設(shè)備上的檢測儀，常用于熱敏或熱轉(zhuǎn)印打印機(jī)，內(nèi)置激光檢測儀和電源。Portablebarcodedetectorscanquicklydetectwhetherthebarcodeis