Muab cov roj teeb kom zoo nkauj - kev poob siab tsis ua haujlwm
Peb yog ib lub tuam txhab luam ntawv loj hauv Shenzhen Tuam Tshoj. Peb muaj cov phau ntawv luam tawm, phau ntawv xov xwm luam ntawv, phau ntawv luam ntawv, phau ntawv nyuaj, phau ntawv luam tawm, phau ntawv luam tawm, phau ntawv luam tawm, lub thawv ntim, daim qhia ntawv, txhua yam ntawm PVC, cov ntawv luam tawm, ntawv sau cia, hom tshwj xeeb ntawv xim luam tawm khoom, kev ua si cardand li ntawd.
Yog xav paub ntxiv, thov mus saib
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Tus dab dab no tseem hu ua ob lub duab ntxoov ntxoo. Hla cov kab ntiav hnav sab nraud ntawm kab ntawv lossis duab ntxoov ntxoo tshwm tom ntej ntawm cov ntawv luam tawm.
Cov tsos ntawm tus duab dab tsi ua rau nyias kab tuab, thiab tus thawj dot tiav ib thiab ib nrab lossis ob. Daim duab ntawm tag nrho cov ntawv luam tawm qhov muag plooj thiab qhov ntse yog obviously txo.
Teeb duab yam
Lub cim thiab hom ntawm ib tug dab
Kev luam tawm nrog ib lub tshuab luam ntawv, luam tawm hauv txhua lub nruas, qhov kev xa me me tuaj yeem tshwm sim ntawm cov chais, qhov sib xyaw uas tsis sib thooj, tsis muaj coincidance, thiab tus lej ntxiv rau ntawm daim pam tsis tag nrog cov ink number plhom lub sijhawm no. Ntxiv nrog rau tus cwj mem xoom pauv lub sij hawm no, lub teeb pom kev ntawm cov seem txheej ploj txheej tseem tuaj yeem tawm, raws li qhia hauv daim duab 8-2. Tus dab dab neeg yog superimposed rau ntawm lub substrate, thiab ib tug ghosting txhaum yog tsim.
Qhov kev ua tsis ua hauj lwm tshwm sim feem ntau thaum lub sij hawm luam ntawv pib, thaum lub nruas yog nias thiab lub voj voog; Thaum lub tshuab raj kheej txuas nrog sib txuas thiab sib cais ntawm lub npoo ntawm lub pawm npog, thaum lub npoo ntawm lub pawm npog thiab lub hneev taw ntawm lub tswv yim muaj nyob rau hauv kev sib cuag thiab theem sib cais Thaum lub tais plhaub thiab daim ntawv pub rau cov menyuam xa ntawv; thaum tus number plaw pib pib hu rau lub phaj los yog thaum lub phaj raug tso tawm thiab qhov kev hloov ntawm kev luam tau hloov.
Hom ntawm ghosting yog muab faib ua feem ntsug ghosting, tav toj ghosting, thiab A thiab B ghosting raws li kev coj ntawm ghosting.
Ntsug ghosting, kuj hu ua ghosting. Tus duab ntxoov ntxoo ntawm cov teev yog nyob ntawm lub nraub qaum thiab qhov siab ntawm qhov thawj dot nyob rau hauv cov kev taw qhia ua rau txoj kab sab nraud ntawm lub nruas, raws li muaj nyob rau sab sauv sab laug.
Horizontal ghosting, kuj hu ua mus rau tus dab. Tus duab ntxoov ntxoo ntawm cov teev yog nyob rau sab laug thiab sab sab ntawm tus thawj dot, thaum uas tig mus rau txoj kab cob qhia ntawm tus menyuam los yog ntawm lub kaum ntse ntse, thiab cov duab ntxoov ntxoo dag yog lub teeb thiab hnyav, thiab nws txoj hauj lwm tas, txoj cai ntawm daim duab 8-2.
A, B ghosting, virtual duab ntxoov ntxoo ntawm cov dot, feem ntau nyob rau sab saud thiab sab qis ntawm tus thawj dot, qee qhov ntawm sab laug thiab txoj cai ntawm tus thawj dot, nws txoj hauj lwm tsis ruaj.
2. Vim li cas rau thiab ua rau muaj kev sib deev
Muaj ntau ntau yam rau ghosting. Koj yuav tsum txheeb xyuas qhov ua tau raws li hom ghosting thiab paub qhov teeb meem kev daws teeb meem.
(1) Ntsug ghosting
1. Daim ntawv xov xwm rau tus menyuam thiab lub tho qhov sib txawv, qhov sib xws ntawm qhov chaw eccentric bushing thiab phab ntsa phom qhov yog loj heev, tshwj xeeb tshaj yog qhov sib txawv ntawm qhov phaj lub tog raj kheej, kom lub nruas vibrates thaum khiav txheej txheem, qhov tshaj tawm ntawm cov nruas tsis yog xim, lub phom lub tog raj kheej thiab cov roj hmab Daim ntaub qhwv tuaj yeem tsis muaj kev sib txuas ntawm tib txoj hauj lwm ib zaug, thiab tus number case nyob rau ntawm daim ntawv luam tawm yog muab xa mus rau ntau qhov chaw ntawm daim pam quav ob zaug hauv kev succession, thiab ib tug ghost duab tshwm. Feem ntau ntawm cov ghosts tshwm sim hauv lub qhov ncauj ntawm kev luam. Feem ntau nws ntseeg tau hais tias qhov sib npaug ntawm tus menyuam yaus bushing yog li 0.01 txog 0,02 hli, thiab kev tu vaj tse yog thaum tus menyuam nyob rau 0.07 mus 0.08 hli los xyuas kom meej meej luam tawm ntawm lub tshuab luam ntawv.
2. Tus backlash thiab radial runout ntawm lub nruas iav yog loj heev. Lub tshuab tua hluav taws muaj lub neej ua haujlwm ntev, lub iav ntoo, lub pluaj hniav qis dua, thiab lub nraub qaum ntawm cov meshing hniav nce, thiaj li hais tias lub chais tsis tau khiav ntawm qhov ceev, ua rau muaj kev sib txhuam sib luag ntawm cov chais. Kev xa tawm, ghosting tshwm sim. Nyob rau hauv ib lub chaw muag khoom, lub zog los yog cov bearings nrog hnav hnyav tuaj yeem hloov tau; qhov chaw nrug ntawm lub nruas yog kom txo tau kom qhov sib txawv ntawm sab nraud nyob hauv ib qhov chaw; lub gasket yog padded rau hauv daim duab trapezoidal nrog cov ntaub ntawv pov thawj kom txo tau Cov kev co ntawm lub qhov ncauj me me tau kov cov dab los ntawm ntau lub nraub qaum ntawm lub nruas iav thiab qhov radial runout heev.
3, lub nruas tsis yog sab hauv, lub siab loj heev, qhov dav hlau ceev ceev yog inconsistent, ua ntau pressing quab yuam ntawm lub taum, hloov qhov extrusion nqi ntawm daim pam. Vim yog lub loj xa tawm ntawm daim pauv plaster deformation, nws tsis tuaj yeem rov qab mus rau hauv lub xeev ua ntej kev sib txuam, ua rau ghosting thaum tus number case yog hloov.
Thaum lub sij hawm tus txheej txheem, lub thawv ntawv thib ntawm lub tshuab luam ntawv yuav tsum muab kom ncaj zoo kom khov tau hais tias peb lub thawv tuaj yeem ua tau dov dov dlhos tsis khuam hauv tib lub npoo. Qhov tseeb, ib qho nyiaj tsawg tsawg ntawm daim ntawv no yeej ib txwm muaj, tab sis nyob rau hauv cov zwj ceeb ntawm kev sib tshuam, daim npav tsis tas yuav ntxiv tshaj ib qho nqi. Yog li, raws li qhov yuav tsum tau ua ntawm lub tshuab phau ntawv, ib qho tsim nyog yuav tsum tau txhaj tshuaj kom tsis txhob muaj qhov ghosting tshwm sim los ntawm kev kuaj tsis zoo.
4. Feem ntau cov xim luam ntawv cov luam ntawv tsis pub sib tw. Tus number case ntawm lub luam tawm xim ntau lub tshuab luam ntawv yog overprinted nyob rau hauv qhov kev ntub ntawm ntub thiab ntub dej, yog li tus lej luam ntawm lub luam tawm thawj daim ntawv tuaj yeem yooj yim pauv mus rau saum npoo ntawm cov xim thim rov qab. Thaum qhov chaw nruab nrab ntawm cov koog tsis muaj tseeb, thawj tus ntawv luam tawm ntawm tus lej yuav hloov tawm, yog li ntawd cov duab ntawm txhua kob nruam tuaj yeem tsis sib tshooj thiab ua rau ghosting. Thaum luam ntawv, daim ntawv hla los ntawm ntau qhov chaw ntawm daim ntawv pub rau tus menyuam rooj. Cov sij hawm ntau daim ntawv tso, ntau dua qhov teeb meem overprinting kev ua yuam kev, thiab qhov feem ntau ntawm kev xaav, qhov ntau dua tau ntawm ghosting. Yog li, txoj hauj lwm ntawm kev sib koom ua ke ntawm cov hlua yuav tsum kom yog thiab tsis tuaj yeem loosened los yog npog los xyuas kom meej tias cov menyuam yaus xa daim ntawv rau ntawm qhov taw qhia tangential.
Tsis tas li xwb, cov menyuam yaus tsis nyob rau hauv qhov chaw, tus menyuam lub npog sab nraud, qhov zoo ntawm daim pam tsis zoo, lub zog ntawm daim tawv nqaij ntawm daim ntawv loj loj, lub phaj tsis rub tawm, los yog lub phom puas lawm thaum phaj, uas tej zaum yuav ua rau ntsug ghost tsis ua hauj lwm. .
[Case 1]
Tom qab luam tawm ib daim ntawv tuab ntawm 300g / m2 los ntawm plaub-xim plaub-qhib kev luam tawm tshuab luam ntawv nyob rau hauv ib lub hoobkas, tom qab luam ntawv luam tawm ib cov ntawv luam yeeb ib zaug ntawm 80g / m2, cov khoom luam tau loj ntsug duab ntxoov ntxoo ntawm ob lub xim. (Los ntawm lub qhov ncauj ntawm lub qhov ncauj mus rau txoj hauj lwm ntawm tus kav nruab nrab), qhov sib txawv nruab nrab ntawm qhov teeb pom kev zoo thiab txoj kev sib sib zog nqus nyiaj yog 1.5 hli.
[Case study]
Lub ntsiab tseem ceeb rau qhov tsis ua hauj lwm saum toj no yog tias thaum lub sij hawm luam ntawm 300g / m2 tuab daim ntawv, lub tswv yim kheej kheej ua hauj lwm hauv siab thauj ntev zog, uas ua rau qaug zog ntawm qee cov neeg yawg me me kom yuam kev mus ua haujlwm thiab poob qis . Daim ntawv tsis ruaj tsis khov, ua rau ib tug dab.
[Txuas mus]
(1) Ua txhua yam kev soj ntsuam ntawm lub tswv yim cylinder gripper thiab hloov qee qhov qaug dej kom paub tseeb tias cov ces kaum ntawm cov grippers nyob rau hauv qhov chaw, qhov ntev ntawm lub flaps yog zoo ib yam, thiab lub zog yog raws nraim.
(2) Ntxuav thiab ntub cov ntaub ntawv ntsig txog qub.
(3) Lub tshuab khiav los li ib nrab teev, ces sim dua.
[Cov tswv yim txawj ntse]
Muaj ntau lub tshuab luam ntawv uas luam tawv tuab ua ntej, tom qab ntawd sau cov ntawv nyias nyias, thiab muaj ib daim duab dab tsi thaum xub thawj, tab sis tom qab luam ntawv mus rau 1000-2000 nplooj ntawv, cov duab dab tsis ua kom zoo. Qhov no qhia tau hais tias qee cov tshuab crepe hniav hlav quab yuam tuaj yeem txum tim rov qab.
(2) Kab rov tav ghosting
1. Lub plhaw sab ntawm lub taub hau ntawm lub taub hau ntawm lub caj dab gripper. Qhov tuaj tos ntawm lub rhaub taub hau ua rau daim ntawv yuav tsum tau muab cais tawm thiab cov ntawv xa tawm, uas ua rau ghosting. Feem ntau, qhov sib txawv nruab nrab ntawm ob lub voj voog ntawm tus tuav lub taub hau thiab lub ntsej muag kawg ntawm lub tes tsho yog kho, thiab tus dab los ntawm lub axial lub zog ntawm tus gripper yuav kov yeej.
2. Lub plhaws ntawm lub nruas yog xoob lossis tuav cov kabmob khawm coj los hnav los yog cov txiv ntseej ntawm lub qhov muag ntswj yog nruj. Lub loosening ntawm cov khoom ua rau plhaus lub tog raj kheej, daim pam lub tog raj kheej thiab lub tswv yim kheej kheej rau cov xaim hluav taws xob thaum lub sijhawm ua haujlwm siab, ua rau muaj kua. Lub sij hawm tsis coincide, ua rau ghosting. Feem ntau nws yuav tsum tau hais tias lub zog ntawm lub tshuab tsis pub tshaj ntawm 0.03 hli, yog li ntawd nws yog ib qho ua tau kom tshem tawm tus dab los ntawm kev nrhiav cov menyuam yaus uas yog strung thiab zawm ntawm lub txiv ntoo ntawm kev tawm tsam.
Tsis tas li ntawd, txoj hlua ntawm dej, tus cwj mem xaws rau hauv txoj kab ncaj ncees; daim ntawv "lobe ntug"; kev hloov tsis pom ntawm lub hauv ntej thiab sab gauges, yog li ntawd cov ntawv ntug siab loj dhau los ua curl; daim ntawv pub noj tsis ruaj khov, lwm yam yuav ua rau kab rov tav.
(3). A, B dab
A, B ghosting yog ib qho teeb meem raug rau ntau hom xim offset printing presses. Nws ncaj qha cuam tshuam rau kev tu tub tu kiv ntawm lub suab nrov thiab xim ntawm cov khoom luam tawm, txo cov duab daws teeb meem, txo cov duab ntau ntau, thiab cov ntawv nyeem tawg.
1, cov tswvyim yooj yim ntawm A, B ghosting
Feem ntau ntawm cov xim niaj hnub siv xim nplua yog siv lub tshuab luam yeeb ob lub voj voog thiab ib qho hloov kheej kheej. Muaj ob kab noj hniav nyob ntawm lub nruas. Cov kab noj hniav no yog hu ua A cavities (shafts) thiab B kab noj hniav (shafts). (Saib Daim Duab 8-3). Yog hais tias qhov kev tsim thiab kev txhim kho ntawm lub tshuab ncej yog siab heev, lub xeev zoo tagnrho hu, ie aa = 0 bb = 0 cc = 0
Tom qab ntawd yuav tsis muaj ghosting. Ntawm qhov tsis sib xws, thaum peb teev ntawm cov ntaub ntawv muaj ntau dua zero los yog tsawg tshaj li xoom, cov dots ntawm cov ntaub ntawv ntawm cov pawg A thiab B tsis tuaj yeem ua tus overlapped rau tom qab luam ntawv, uas inevitably ua cov duab dab neeg. Cov duab coj los ntawm cov hlua sib tshuam muaj ob txoj kab yog hu ua "A, B" dab.
2, A, B ghost yog ntau hom xim tawv nqaij uas muaj ob-lub taub hau rau hauv ntub overprinting. Nyob rau hauv cov ntaub ntawv ntawm ua hauj lwm nruam, lub dab yeeb yam tshwm. Qhov no zoo li ghosting yog ib txwm. Nws yog hais txog qhov tsis ua ntawm ib qho ntawm ob chav-hla rollers ntawm pawg yav dhau los, uas ua rau daim ntawv los npleem thaum lub sijhawm luam ntawv lossis daim ntawv tsis raug xa tawm. Lub luam ntawm lub tsev dhau los yuav tsis coincide rau tom kawg pawg cov pam. , A, B ghost duab yog tsim.
Piv txwv, thawj chav tsev ntawm lub tswv yim kheej kheej Ib qho kev ua haujlwm ntawm lub plhaub zaus, thiab lub tsho sab laug ntawm daim pam thib ob yog taw tes A, thiab thawj lub tsev B ntawm cov cuab yeej caulking yog faulty, ua rau daim ntawv xa rov qab rau hauv kev luam ntawv. Tshem tawm, lub cim ntawm sab laug thib ob pam qab yog hauv qab A, hu ua A, thiab tus duab ntxoov ntxoo ntawm point A pom saum A. Thaum daim nplooj ntawv thib peb dua txheej txheej neeg coob coob, lub cim tseg sab laug thib ob ntawm cov pam vov coincides nrog point A, li ntawd nyob rau hauv point A, lub cim ntawm ib seem ntawm daim pam coincides nrog point A. Yog li, A tshwm sim hauv qab A taw, thiab cov ntawv luam tawm tshuav ntawm daim pam, yog li ntawd tus dab tshwm tuaj tsis tu ncua thiab tsis tu ncua. Feem ntau, luam ntawv tuab ntawv tsis yog li cuab kev, thiab luam ntawv nyias nyias (100g / m2 los yog luv dua) yog yooj yim pom.
Yog vim li cas ho ua rau A thiab B dab neeg txoj kev ua yeeb yam yog tias cov ntaub ntawv uas muaj ntau hom tuab tuab feem ntau tau luam tawm los ua kom cov pawm hnav, los yog vim tias cov tshuab ceev ceev yog inconsistent, lubrication tsis nyob hauv qhov chaw, thiab hnav cov cuab yeej ntawm cov hniav txo .
Raws li cov lus saum toj no, ib nkawm gingival li qhov sib txawv ntawm cov duab dab tsi rau saum lub cev tsis zoo (qhov kev taw qhia ntawm lub hau) yog faulty, thiab ob peb lub cev ua haujlwm ua sib txuas ua ke rau hauv tus dab nyob rau hauv lub cev blot (ntawm kev coj ntawm cov lub qhov ncauj) ua haujlwm feem ntau. .
AB lub tebchaws txheeb xyuas thiab tshem tawm
Nyob rau hauv cov ntaub ntawv ntawm high-ceev ua hauj lwm, yuav ua li cas txiav txim uas ntawm ob cov ntaub ntawv ntawm AB yog faulty?
Thawj txoj kev yog qhov kev sib tw ua pab pawg, uas yog, luam tawm nrog thawj zaug thiab thib ob units thawj zaug, txhawm rau saib xyuas seb cov cim nyob rau ntawm daim ntawv ntawm thawj lub tsho yuav raug overlapped rau hauv ob daim pam, thiab yog coincidence, thawj unit yog pov thawj. Txoj kev ntaus cim thiab kev hloov ntawm cov tub ntxhais kawm tuaj yeem ua haujlwm txhua zaus; yog tias nws tsis sib tshooj, nws yog qhov tseeb tias thawj chav nruab lus thiab qhov hloov cov tub ntxhais kawm ntawv tuaj yeem raug faulty thiab yuav tsum tau muab tshem tawm. Tom qab ntawd, siv cov khoom thib ob thiab thib peb luam tawm los txiav txim siab seb puas yog qhov thib ob ntawm tus kab mob hniav ua haujlwm zoo, thiab lwm yam.
Txoj kev thib ob yog luam tawm plaub units tib lub sij hawm, saib cov xim xim, thiab teem caij xim xim kom dub, cyan, magenta, daj (ie B, C, M, Y), xws li BK, C xim nyob rau tib lub sijhawm ghosting Cov xim M thiab Y xim meej meej, yog li nws muaj pov thawj tias BK thiab C imprints tsis sib npaug ntawm M thiab Y pam, thiab nws yuav raug txiav txim tias C pawg pob zeb los yog cov ntawv xa tawm tau Txheej Txheem Tshuaj Tivthaiv, thiab M cov pabcuam M Cov ob ntawm cov yas hniav ua haujlwm ua haujlwm feem ntau, vim tias cov xim M cov cim ntawm cov xim uas muaj peev xwm ua tau tag nrho nrog rau Y shirtsis Y, cov xim M thiab Y yog qhov tseeb.
Raws li cov lus taw qhia saum toj no, peb tau txiav txim siab ceev yam twg, uas yog ib qho ntawm cov hniav lwj tau ua tsis tau zoo, siv tau los kho qhov teeb meem ntawm kev kho hniav.
Txoj kev cais tawm yog raws li hauv qab no:
(1) ua ntej saib seb qhov qhib rau cov menyuam hnav ntau dhau;
(2) Tshawb xyuas lub puab tsaig ncej puab, seb lub rooj sib tsoo puas los hnav lossis tsis;
(3) Rau kev ntxuav tes thiab quab yuam kev hloov ntawm cov ntaub qhwv, cov hniav thiab cov pawm, Komori, KBA, Mitsubishi thiab Roland tag nrho muaj qhov cuab yeej rau clamping cov hniav, ua ntej tig lub taub hau rau lub facet, ces ib tug los ntawm ib tug. Ua kom tus hniav txhuam hniav thiab ntxuav cov hniav thiab tus hniav txhuam hniav, ces kaw cov ntaub yas hniav rau ntawm lub qhov ncauj, thiab thaum kawg kho tus menyuam cov hniav qhib rau lub ntsej muag loj (yuam) kom kaw qhov hniav, thiab kho lub zog thiab qhov zoo kaw. Nyob rau hauv cov haujlwm saum toj no, lub hwj huam yuav tsum muab tua kom tsis txhob ua hauj lwm thiab puas tsuaj rau cov khoom siv.