Daim ntawv -raws li ntim khoom noj tau nrov heev hauv kev lag luam khoom noj khoom haus. Qhov no yog vim kev lag luam tau tshem tawm ib zaug - siv cov yas. Ntawm qhov chaw ntawm qhov kev hloov pauv no yog ib hom tshuab uas hloov cov ntaub ntawv tiaj tus blanks rau hauv tiav, khoom noj khoom haus -cov ntim khoom nyab xeeb. Lub tshuab no feem ntau hu ua apaper food box machine. Yog li kev paub tias cov tshuab no ua haujlwm li cas txij thaum pib mus txog thaum kawg pab cov neeg yuav khoom, cov kws tsim khoom ntim khoom, thiab cov neeg ua zaub mov xaiv xaiv zoo dua txog kev muaj peev xwm, qhov twg yuav tau txais cov ntaub ntawv, thiab yuav npaj li cas.
Dab Tsi Mus Rau: Khoom Specifications
Ua ntej thawj qhov kev txav mus los, cov khoom siv raw zoo txiav txim siab lub qab nthab ntawm txhua yam hauv qab. Cov thawv ntim khoom noj niaj hnub no cia siab rau SBS (khoom bleached sulfate) lossis FBB (folded boxboard) paperboard, feem ntau nyob rau hauv 170-350 gsm ntau yam nyob ntawm qhov xav tau lub thawv qhov tob thiab thauj khoom -cov kabmob yuav tsum tau ua.
Rau cov ntawv thov zaub mov kub -fried chicken boxes, rice bowls, noodle containers-the substrate will have a functional barrier layer. Ib leeg- sab PE (polyethylene) txheej hauv 12–18 g / m² yog qhov kev teeb tsa ntau tshaj plaws, muab cov dej noo tsis kam ntawm cov zaub mov- tiv tauj saum npoo thaum khaws cov sab nrauv luam tawm. Roj- cov qib tiv thaiv ntxiv cov tshuaj fluorine ntxiv- kho cov ntxhia dawb rau cov qauv fiber ntau, ntsuas tiv thaiv kev nkag mus raws li ASTM F119-82 thiab sib npaug cov txheej txheem kuaj los ntawm European txoj cai tiv thaiv zaub mov.
Cov khoob khoob tuaj txog ua ntej-txiav thiab ua ntej- tau qhab nia los ntawm kev ua haujlwm sib cais, lossis lub tshuab ntim khoom noj ntawv lees txais yob- cov khoom noj khoom noj thiab ua haujlwm hauv kab tuag- txiav. Inline configurations txo tuav cov kauj ruam tab sis xav kom nruj dua reel nro tswj thiab ntxiv cov cuab yeej complexity.
Theem 1 - Pub dawb thiab sib cais
Lub voj voog ntau lawm pib ntawm cov ntawv xov xwm lossis lub hopper, qhov chaw ntsug lossis inclined pawg ua ntej - tau qhab nia blanks tos hauv kab. Lub tshuab nqus tsev-pab nqa lub taub hau- feem ntau yog ob mus rau plaub lub khob nqus dej uas tau teem rau ntawm lub vaj huam sib luag loj tshaj plaws - nqa tawm sab saum toj dawb paug ntawm pawg. Cov txheej txheem sib cais yuav tsum ntseeg tau cais ib daim ntawv txawm tias qhov hluav taws xob zoo li qub ua rau qhov chaw nyob ib puag ncig los tuav ua ke; anti- zoo li qub ionizer tuav yog cov txheej txheem fixture ntawm siab dua - kab ceev.
Optical sensors paub meej tias ib qho - dawb paug xaiv ua ntej hloov tsheb ciav hlau indexes rau pem hauv ntej. Ib qho misfeed-ob ob- xaiv lossis tsis yog- xaiv- ua rau lub qhov rooj tsis siv neeg nres thiab tsis lees txais lub rooj es tsis tso cai rau jam los cascade rau hauv kev tsim cov cuab yeej.
Pub tus nqi ntawm nruab nrab - cov cuab yeej siv feem ntau khiav ntawm 40 thiab 120 cycles ib feeb. Siab dua -kawg servo- tsav platforms ncav cuag 180-220 cycles ib feeb los ntawm kev khiav dual- txoj kab khiav hauv ib lub sij hawm staggered ib ntus, ua tau zoo dua ob npaug tso zis los ntawm ib lub tshuab hneev taw.
Theem 2 - Cov qhab nia qhib thiab ua ntej-Tuag
Paperboard tsis quav ntsej kom huv tsis muaj qhov txias. Cov kab nrib pleb nias thaum lub sij hawm hloov pauv yog qhib los ntawm cov txheej txheem ua ntej - tawg chais lossis cam- cov phaj tsav uas flex qhov khoob me ntsis dhau los ntawm nws cov kev txwv elastic raws txhua qhov qhab nia. Qhov no rhuav tshem cov qauv fiber ntau ntawm txoj kab folding hauv txoj kev tswj hwm, kom ntseeg tau tias cov chaw folding tom ntej ua kom nruj, zoo ib yam ntawm cov ces kaum es tsis yog cov kua muag tsis tu ncua lossis cov npoo sib npaug.
Ua ntej- tawg geometry yuav tsum tau calibrated rau board caliper thiab noo noo cov ntsiab lus. Paperboard txias txias rau cov txheeb ze av ntawm 45–55% yog pom zoo nyob rau hauv International Fiber-Raws li kev lag luam ntim cov lus qhia kom txo qhov tawg hauv qhov sib sib zog nqus- cov qhab nia folds-ib qho tshwj xeeb hauv kev nyab xeeb- tswj lossis siab - qhov chaw siab.
Theem 3 - Daim ntawv thov Adhesive
Thaum qhov khoob yog ua ntej- tawg, kua nplaum yog muab tso rau ntawm cov nplaum nplaum. Feem ntau cov ntawv ntim khoom noj tshuab tsim siv ib qho ntawm ob lub tshuab kua nplaum:
Kub-cov nplaum nplaum (EVA lossis polyolefin-raws li): Cov kua nplaum no yog muab tso rau ntawm 150-180℃los ntawm cov nozzles me me. Yog li qhib lub sijhawm feem ntau yog 1-3 vib nas this. Cov txheej txheem ceev ceev tso cai rau lub voj voog nrawm dua. Tab sis cov kua nplaum no xav tau cov cua sov hose kom nws khiav thiab kev saib xyuas tshwj xeeb kom tsis txhob muaj qhov thaiv.
Dej-raws li (dextrin lossis PVA) nplaum: Siv txias lossis sov (40–60 degree), qhib lub sijhawm 5–15 vib nas this. Zoo dua haum rau cov zaub mov-nrog rau cov flaps sab nraud uas cov kuab tshuaj residual tawm-gassing yog ib qho kev txhawj xeeb. Slower teeb txwv qhov siab tshaj plaws kab nrawm tab sis ua kom yooj yim txij nkawm.
Nozzle qhov chaw yog servo-indexed kom phim rau txoj kab ncaj nraim hauv ± 0.3 hli. Tshaj - daim ntawv thov pov tseg cov nplaum nplaum thiab kev pheej hmoo nyem - tawm tsam cov zaub mov - thaj chaw tiv tauj; nyob rau hauv- daim ntawv thov ua rau delamination nyob rau hauv lub ces kaum lub thawv tiav- hom kev tsis lees paub zoo tshaj plaws hauv kev tshawb xyuas cov khoom lag luam.
Theem 4 - Folding thiab Forming
Qhov no yog mechanically complex core ntawm daim ntawv zaub mov lub thawv tshuab. Ib ntu ntawm folding plows, qhia kev tsheb ciav hlau, thiab tsim mandrels tig lub tiaj tus, ua ntej -glued dawb paug rau hauv peb lub thawv loj los ntawm kev sib koom ua ke:
Sab phab ntsa erection: Ob tug opposing folding caj npab tig lub sab ntev panels upwards, feem ntau mus rau 90 degree, tiv thaiv ib tug ruaj mandrel uas txhais lub sab hauv lub thawv geometry.
Lub kaum ntse ntse xauv: Cov vaj huam sib luag luv luv yog muab tais rau hauv, compressing lub ces kaum tuck tabs los yog cov nplaum nplaum tiv thaiv cov uas twb muaj lawm - sab phab ntsa.
Lub hauv paus tsim: Rau qhib- cov tais sab saum toj, lub hauv paus tsuas yog lub qhov rooj qhib qhov nruab nrab uas tuav los ntawm mandrel. Rau lub hau lossis tig- cov qauv tsim sab saum toj, qhov chaw tsim khoom thib ob tuav lub hau geometry hauv tib lub voj voog.
Compression dwell: Cov khoom sib sau ua ke yog tuav nyob rau hauv kev tswj siab -feem ntau 0.2–0.6 MPa- rau lub sij hawm nyob twj ywm matched rau cov nplaum txheej ceev. Servo- hluav taws xob xovxwm tsav tso cai rau lub sij hawm nyob rau hauv programmed nyob rau hauv 10-millisecond increments, uas yog ib qho tseem ceeb rau kub-melt systems uas daim ntawv cog lus lub zog kev loj hlob yog lub sij hawm-sensitive.
Mandrel tolerancing yog qhov tseem ceeb ntawm qhov zoo sib xws. Raws li kev tshawb fawb luam tawm hauv Phau Tsom Faj Txog Kev Siv Tshuab thiab Kev Tshawb Fawb, qhov sib txawv ntawm qhov sib txawv hauv cov thawv ntawv ua ke sib cuam tshuam nrog cov mandrel hnav thiab thermal expansion ntawm kev sib sau cov cuab yeej-ob qho tib si los ntawm tungsten-carbide-coated mandrel nto thiab kub- them nyiaj cov cuab yeej hlau.
Theem 5 - Kev soj ntsuam zoo thiab tsis lees paub
Tam sim ntawd downstream ntawm qhov chaw tsim khoom, inline inspection systems xyuas:
Lub kaum sab xis: Laser nrug sensors xyuas cov kab pheeb ces kaum. Yog li qhov kam rau ua feem ntau yog ± 0.5 hli ntawm cov thawv ntim khoom txheem.
Flap daim ntawv cog lus lub zog: Lub siab sensors nyob rau hauv cov xovxwm phaj xav tias qhov tsis kam yog tsawg dhau. Tom qab ntawd lawv kos cov thawv nrog cov nyiaj tsis muaj zog.
Dimensional qhov siab: Ib qho kev sib cuag gauge lossis laser sensor kos lub thawv qhov siab tiv thaiv lub hom phiaj.
Cov thawv tsis lees paub raug thawb ib sab los ntawm huab cua-flipper uas muaj zog ua ntej lawv ncav cuag cov khoom xa tawm. Yog li kev tsis lees txais cov nqi qis dua 0.5% tuaj yeem ua tau zoo ntawm -cov kab tuav uas khiav ntawm lub rooj tsav xwm zoo. Tab sis cov nqi siab dua 2% feem ntau txhais tau tias cov cuab yeej hnav, cov kua nplaum kub tawm, lossis lub rooj tsav xwm tuab tsis khov kho.
Theem 6 - stacking, suav, thiab tso zis
Cov thawv uas tau txais mus rau qhov chaw nres tsheb uas muaj lub txee- tig lub tshuab ntes cov zes lossis muab lawv tso rau hauv qhov suav ua ntej -feem ntau 25, 50, lossis 100 ib pob. Tsis siv neeg band-wrapping lossis lub tes tsho-shrink modules tuaj yeem ua ke hauv kab los tsim cov txee- pob khoom npaj tsis tau tuav.
PLC-cov txee tswj tau taug qab tag nrho cov khoom tawm ntawm ib qho kev hloov pauv, ib lub thawv hom, thiab ib yob lossis batch ntawm cov khoom uas tuaj rau hauv. Yog li cov ntaub ntawv no nkag mus rau hauv OEE (Txhua Yam Khoom Siv Tau Zoo) dashboards. Tom qab ntawd, pab neeg tu thiab tsim khoom siv cov dashboards los nrhiav qhov chaw downtime tshwm sim dua thiab dua. Ib lub qhov dej- teeb lub thawv zaub mov uas siv ib lub thawv rau ntawm lub rooj tsavxwm zoo tuaj yeem tau txais OEE qhov tseem ceeb hauv 78–88%. Cov ntaub ntawv no yog los ntawm Lub Tsev Haujlwm Ntim Machinery Manufacturers.
Qhov tseem ceeb Performance Parameter ntawm ib saib
| Parameter | Hom kab mob |
|---|---|
| Ntau lawm ceev | 40-220 lub thawv / min |
| Paperboard gsm ntau yam | 170-350 gsm |
| PE txheej hnyav | 12–18 g/m² |
| Adhesive thov kam rau ua | ± 0.3 hli |
| Lub kaum squareness kam rau ua | ± 0.5 hli |
| Compression nyob hauv siab | 0.2-0.6 MPa |
| OEE ntawm ib zaug -SKU khiav | 78–88% |
Common Failure Modes and Remedies
| Hom kev ua tsis tiav | Keeb kwm | Txoj Cai Kho |
|---|---|---|
| Muab ob npaug - nqa dawb | Static buildup, hnav suction khob | Nruab ionizer tuav; hloov khob ib lub sijhawm |
| Corner delamination | Adhesive nyob rau hauv - koob tshuaj lossis lub sijhawm qhib tas sijhawm | Recalibrate nozzle; txo kab ceev |
| Box qhov siab tawm ntawm spec | Mandrel hnav los yog thermal expansion | Hloov mandrel; teem caij kub them nyiaj |
| Torn fold kab | Tsawg board humidity; tsis raug ua ntej - tawg qhov tob | Lub rooj tsav xwm xwm txheej rau 45-55% RH; kho cam |
| Flap nyem- tawm | Adhesive tshaj - koob | Txo lub nozzle nyob hauv lub sijhawm los ntawm 5-10 ms |
Kev koom ua ke nrog cov khoom siv Upstream thiab Downstream
Lub tshuab ntim khoom noj khoom haus standalone feem ntau yog ib qho ntawm cov khoom siv dav dav. Upstream, rotary tuag-cutter lossis flatbed platen xovxwm npaj cov blanks. Hauv qab, ib qho tsis siv neeg packing neeg hlau lossis cartoner thauj cov thawv tiav rau hauv cov khoom thauj. Qhov twg yuav tsum tau luam ntawv inline -rau ntau cov lej, cov lus qhia tsis haum, lossis QR cov lej-inkjet lossis thermal- hloov lub taub hau luam tawm yog ntsia nruab nrab ntawm qhov chaw kuaj xyuas thiab lub stacker.
Kab ntsuas qhov teeb meem: yog tias lub tshuab tsim ua haujlwm ntawm 120 cycles / min tab sis cov khoom ntim qis qis tsuas yog 80 pob / min, lub tshuab tsis siv neeg nrog qhov sib txuas ntev ntev li ntawm 60 vib nas this ntawm kev tsim khoom yog xav tau los tiv thaiv cov dej ntws rov qab.
Cov lus nug nquag
Dab tsi ntawm daim ntawv gsm yog qhov zoo tshaj plaws rau lub thawv ntim khoom noj?Daim ntawv thov mov thiab noodle feem ntau siv 210–280 gsm ib leeg -PE-coated board. Cov qib hnyav dua 300 gsm txhim kho lub zog stacking tab sis nce cov nqi khoom thiab tej zaum yuav xav tau ua ntej - tawg cam hloov.
Ib lub tshuab puas tuaj yeem tsim ntau lub thawv?Yog lawm. Ceev-hloov mandrel teeb thiab servo- kho folding qhia tso cai hloov pauv loj hauv 20–45 feeb ntawm cov platforms niaj hnub. Daim ntawv qhia tsis tau- nrawm, nplaum nplaum, ua ntej- tawg qhov tob- tau muab khaws cia hauv PLC thiab rov qab los ntawm SKU tus lej.
Yuav ua raws li kev nyab xeeb ntawm zaub mov li cas thaum tsim khoom?Khoom noj khoom haus-kev sib cuag saum npoo sab hauv thiab tsis txhob sib cuag lub tshuab cuab yeej tom qab lub txheej txheem. Adhesive systems yuav tsum ua tau raws li cov zaub mov -hu rau cov kev txwv kev tsiv teb tsaws chaw raws li cov kev cai siv (FDA 21 CFR rau Asmeskas kev lag luam; EU Txoj Cai 10/2011 rau European lag luam). Kev tu cev tsis tu ncua ntawm cov nplaum nozzle sib dhos thiab tsim mandrels yog kev coj ua.
Lub tshuab hneev taw yog dab tsi?Tib - cov tshuab pwm nyob ze li ntawm 3-5 m hauv qhov ntev thiab 1-1.5 m dav. Dual - txoj kab siab - kev teeb tsa ceev txuas mus rau 6-8 m nrog rau kev sib xyaw ua ke thiab cov khoom sib txuas.
Dab tsi ua rau muaj kev tsis lees paub ntau dua? The three most frequently cited causes in industry maintenance surveys are: incoming board caliper inconsistency (>±5% deviation from spec), adhesive temperature drift (>± 5℃los ntawm kev teeb tsa), thiab tsim mandrel hnav tshaj 0.1 mm deviation.
Cov ntaub ntawv
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Kev ntim khoom noj thiab txee lub neej (Elsevier) - "Kev Ua Haujlwm Txheej Txheem Txheej Txheem rau Cov Khoom Noj Khoom Noj Khoom Noj: Kev Ua Tau Zoo Raws li Kev Kub Kub thiab Kev Nyuaj Siab"
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