Taug kev mus rau hauv ib qho khoom noj, tsev noj mov hauv tsev kho mob lossis tsev kawm ntawv lub tsev noj mov hnub no thiab koj yuav luag yuav ntsib cov ntawv ntim khoom noj. Tom qab txhua lub thawv yog lub tshuab shaping uas tau hloov pauv cov duab los qhia rau hauv cov tswv yim, xau-cov ntaub ntawv pov thawj hauv tsawg dua ib ob. Daim ntawv noj su lub thawv ua tshuabyog lub luag haujlwm rau qhov kev hloov pauv no-thiab nkag siab tias nws ua haujlwm li cas nthuav tawm qhov sib xyaw ua ke ntawm cov ntaub ntawv tshawb fawb, precision machinery thiab thermal engineering.
Daim ntawv no qhia txog lub tshuab ntawv noj su yog dab tsi, lub hauv paus txheej txheem ntawm lub tshuab ntawv noj su, yuav ua li cas cov txheej txheem ntawm cov ntawv noj su ntawm cov khoom siv los ntawm cov ntaub ntawv raw mus rau lub thawv tiav, thiab cov yam ntxwv uas txiav txim siab qhov zoo thiab kev ua haujlwm ntawm cov ntawv noj su.
Hloov mus rau daim ntawv -Based Food Containers
Ua ntej tshuaj xyuas cov cuab yeej siv nws tus kheej, nws yuav tsum tau txiav txim siab tias vim li cas cov tshuab no tau dhau los ua qhov tseem ceeb hauv kev lag luam. Txoj kev tshawb no, luam tawm nyob rau hauv Environmental Engineering Research (2024), pom tias ib leeg - siv cov thawv ntim khoom noj ua los ntawm Kraft lossis polyethylene lactic acid muab kev tiv thaiv zoo dua, lub zog tensile thiab ib puag ncig zoo dua li kev nthuav dav polystyrene lwm txoj hauv kev. Qhov no tau nrawm thoob ntiaj teb kev tswj hwm thiab kev lag luam xav tau rau cov ntawv ntim khoom noj.
Kev hloov pauv ntawm npuas thiab yas mus rau cov thawv ntawv yuav tsum tsis yog cov khoom sib txawv xwb, tab sis kuj tseem muaj cov txheej txheem tsim khoom sib txawv heev - cov tshuab siv los ua cov thawv ntawv noj su yog tsim los xa.
Ob hom tshuab txawv
"Daim ntawv noj su lub thawv tshuab" yog lub ntsiab lus lub kaus uas npog ob hom khoom sib txawv uas ua rau kev nkag siab, txhua qhov sib txawv ntawm cov khoom siv thiab cov tshuab molding. Kev tsis meej pem ob ua rau qhov kev txiav txim siab tsis raug, yog li lawv yuav tsum paub meej qhov txawv ntawm ib leeg los ntawm qhov pib.
Chav Kawm 1: Coated Paperboard Thermoforming Machine
Cov tshuab no ua cov duab los qhia dawb- feem ntau tsis tshua muaj qhov ntom ntom polyethylene (PE) lossis polylactic acid (PLA) - uas yog ua ntej - luam tawm lossis ua ntej -coated nrog txheej thaiv. Cov txheej txheem ua haujlwm ob lub hom phiaj: nws muab cov roj thiab cov dej noo uas xav tau los kov cov zaub mov, thiab nws yog thermoplastic, txhais tau tias nws ua haujlwm nyob rau hauv tshav kub thiab siab, lub tshuab tsim los ntawm lub tshuab.
Hom 2: Pulp Moulding Tshuab
Cov tshuab ua cov kua slurry los ntawm cov ntaub ntawv siv dua tshiab thiab tsim cov thawv fiber ntau- siv hauv cov thawv qe, cov tais txiv hmab txiv ntoo thiab qee qhov ntim khoom noj. Fiber slurry yog tso rau ntawm cov pwm ntxeem tau hauv lub tshuab nqus tsev, ces qhuav thiab extruded.
Cov engineering architectures thiab kev ua haujlwm tsis ua haujlwm ntawm ob tus qauv sib txawv heev. Daim ntawv tshaj tawm no tshuaj xyuas cov xwm txheej thiab cov xwm txheej yav tom ntej ntawm cov thawv noj su uas siv tau pov tseg hauv ntiaj teb thiab Suav lag luam. Nws txheeb xyuas cov cheeb tsam loj, cov neeg siv khoom loj hauv cheeb tsam, thiab cov tuam txhab loj ntawm cov khoom noj khoom haus pov tseg nyob rau hauv cov nqe lus ntawm kev tsim khoom thiab kev siv, feem.
Dab tsi yog Daim Ntawv Noj Qab Haus Huv Box Ua Tshuab Muaj
Ib tug tag nrho automatic coated paperboarddaim ntawv noj su lub thawv ua tshuabintegrates ntau functional units rau hauv ib tug ntau lawm kab. Cov cuab yeej no ua haujlwm sib txuas, nrog txhua theem txav ncaj qha mus rau tom ntej.
Lub ntsiab subsystems yog:
Paper Feeder (Kev Sau Npe Pub Dawb)
Preheat los yog cua sov chaw nres tsheb
Forming chaw nres tsheb (kub xovxwm pwm los ua ke)
Rim Mill
stacking thiab suav cov cuab yeej
Tswj qhov system (PLC thiab HMI interface)
Qee qhov kev teeb tsa lub tshuab kuj suav nrog lub chaw luam ntawv inline rau cov duab monochrome lossis ntau xim, thiab lub hau- tsim cov khoom siv rau lub thawv uas yuav tsum tau kaw chav tsev cais. Ntau qhov kev teeb tsa siab tshaj tuaj yeem ua ke nrog cov ntawv thov roj (kev txhim kho noo noo tsis kam) lossis ultrasonic sealing hauv cov tsoos thermal seals tsis txaus.
Cov txheej txheem ntau lawm ua haujlwm li cas
Kauj Ruam 1 - Nkag thiab xa cov khoom xyaw.
Kev tsim khoom pib nrog pawg lossis yob ntawm precut lossis yob coated paperboard blanks. Hauv ib qho -cov ntaub ntawv pub mis, lub tshuab siv lub tshuab nqus tsev nqus lub taub hau los nqa cov khoom khoob ntawm cov pawg thiab thauj lawv mus rau qhov chaw pub mis. Kev sau npe meej - qhov sib npaug ntawm kab rov tav thiab ntsug ntawm txhua qhov khoob - yog qhov tseem ceeb nyob rau theem no, vim tias txhua qhov kev khiav dej num yog nyob ntawm qhov khoob kom ncav cuag qhov tseeb ntawm txhua qhov chaw.
Kev sau npe raug yog feem ntau tswj xyuas los ntawm sab kev tsheb nqaj hlau, pem hauv ntej nres pins, thiab photoelectric sensors uas ntes qhov khoob thiab cov teeb liab kho rau cov khoom noj. Ib qho kev sau npe cuav uas tsis raug kuaj pom thaum lub sijhawm pub noj yuav ua rau lub nkoj tsim muaj cov phab ntsa asymmetric, cov npoo tsis sib xws lossis qhov tsis haum rau qhov loj me.
Kauj ruam 2 - Ua ntej- Cua sov
Coated paperboard tsis tsim yam tsis muaj pretreatment. Polyethylene los yog PLA barrier txheej yuav tsum tau tsa saum lub softening point ua ntej stamping, txwv tsis pub cov txheej yuav tawg los yog sawb yam tsis muaj deforming.
Preheating chaw siv cov cua kub ncig los nce qhov kub ntawm qhov chaw ntxhib mus rau qhov kev tswj lub hom phiaj -feem ntau yog 100-160℃, nyob ntawm cov khoom siv txheej thiab thickness. Ib txoj kev tshawb fawb xyoo 2023 tau luam tawm nyob rau hauv Phau Tsom Faj Txog Kev Siv Tshuab thiab Kev Tshawb Fawb tau tshuaj xyuas tus cwj pwm thermoforming ntawm coated fiber ntau- cov ntaub ntawv thiab pom tias qhov kub tsis txaus preheating yog ib qho ntawm feem ntau ua rau tawg nto thiab phab ntsa thickness thinning hauv cov hlab ntsha.
Temperature uniformity thoob plaws qhov chaw dawb paug tseem ceeb npaum li qhov kub thiab txias. Cov cua kub tsis sib xws yuav ua rau cov khoom tsis sib xws thaum lub sij hawm nias, ua rau cov phab ntsa ntawm phab ntsa sib txawv, qhov concentration ntawm cov kev ntxhov siab hauv zos thiab qhov tsis sib xws ntawm lub kaum geometry.
Kauj Ruam 3 - Kub Press Forming (cov haujlwm tseem ceeb)
Qhov no yog qhov txhais tau -thiab feem ntau technically xav tau-theem ntawm txhua lub tshuab noj mov cardboard.
Lub preheated dawb paug nkag mus rau hauv lub rooj sib sau thiab nyob nruab nrab ntawm qhov sib txuam hlau tuag: lub punch sab sauv thiab qis kab noj hniav tuag. Lub punch yog qis dua nyob rau hauv kev tswj ntawm hydraulic quab yuam lossis servo quab yuam thiab qhov khoob yog nias rau hauv kab noj hniav. Thaum lub punch kov cov khoom, cua sov ntxiv softens lub txheej, thaum lub compressive quab yuam ua tus ntxhib rau hauv peb - lub thawv ntawv loj - pedestals, phab ntsa thiab flanges.
Nyob rau theem no, ntau yam kev hloov pauv engineering yuav tsum raug tswj kom meej:
Kev tsim siab:Lub siab qis dhau lawm, cov khoom siv tsis ua raws li cov pwm pwm, tawm hauv cov fab sib npaug thiab cov phab ntsa tsis meej. Yog tias siab dhau lawm, cov khoom tuaj yeem raug yuam kom ncav cuag nws qhov kev txwv elongation, ua rau lub kua muag los yog phab ntsa thinning. Txoj kev tshawb no ntawm thermal forming ntawm cov duab los qhia qhia tau hais tias qhov zoo tshaj plaws kev sib sau siab ntau yam nyob ntawm ib tug loj npaum li cas ntawm kev taw qhia ntawm fibers nyob rau hauv lub substrate thiab lub puas elongation ntawm lub txheej.
Tuag kub:Punch thiab kab noj hniav yog ywj siab tswj qhov kub thiab txias. Qhov kub ntawm qhov tuag txiav txim siab qhov ceev ntawm qhov kub ntawm qhov chaw ntawm qhov tuag mus rau cov khoom thiab yuav tsum tau calibrated raws li lub sij hawm nyob rau hauv qhov ntau lawm ceev.
Lub sijhawm nyob:Lub sij hawm thaum lub punch thiab tuag nyob rau hauv kev sib cuag thiab compress cov duab. Ntev ntev tso cai rau cov khoom tiav rov ua dua tshiab, tab sis qeeb ntau lawm. Feem ntau ntau lawm-qibdaim ntawv noj su lub thawv ua tshuabunits muaj lub voj voog molding ntawm 0.3 mus rau 0.6 vib nas this hauv ib lub lis piam.
Forming qhov tob ratio:Qhov piv ntawm lub thawv qhov tob rau nws qhov tsawg kawg nkaus lateral loj. Kev sib sib zog nqus receptacles yuav tsum tau ua tib zoo hollowed tawm thiab maj mam ncab los tiv thaiv kaum lub kua muag - tib yam kev sib tw engineering uas siv rau qhov sib sib zog nqus stretch sheet hlau tsim rau fiber ntau substrates.
Kauj ruam 4 - Curl thiab trim.
Tom qab tsim cov thawv ntim yooj yim, cov npoo flange raug kho los ua kom huv, dov daim di ncauj. Rolling edges ua ob yam: lawv tshem tawm cov npoo tsis tu ncua los ntawm kev tsim cov txheej txheem, tsim ib lub voj voog ncig, txhim kho pawg ruaj khov thiab muab lub hau huv, kaw rau cov cav tov siv lub hau zaj duab xis.
Lub trim tshem tawm cov khoom ntau dhau ntawm lub thawv kom ncav cuag qhov dav flange. Qhov twg muaj peev xwm ua tau nyiaj txiag, sau thiab rov ua dua cov khoom pov tseg zoo nkauj - feem ntau yog cov kab me me ntawm pawg thawj coj saib - lossis pov tseg nws raws li lub chaw tswj kev pov tseg.
Kauj Ruam 5 - Muab faib, suav, thiab tso zis
Cov thawv ntim tiav tuaj tawm ntawm cov chaw molding thiab muab khaws cia rau hauv pawg lossis cov tais ntim khoom. Feem ntau niaj hnub cardboard noj su cov tshuab suav nrog suav tsis siv neeg- feem ntau siv cov khoom siv kho qhov muag - uas tuaj yeem suav tau thaum muaj tus lej preset.
Cov thawv ntim khoom ntim tau muab tes- ntim rau hauv hnab poly lossis lub tes tsho cardboard, lossis ncaj qha rau hauv cov khoom ntim khoom siv. Lub geometry ntawm pawg-kev huv ntawm lub thawv zes- cuam tshuam rau ob qho tib si khaws cia ceev thiab kev ntim khoom siv tau zoo.
Tswj Systems thiab automation theem
Qib ntawm automation ntawm daim ntawv noj su yog ncaj qha ntsig txog qhov sib xws ntawm cov khoom thiab cov kev xav tau ntawm cov neeg ua haujlwm. Lub tshuab yooj yim siv lub cam tsav ruaj khov mechanism txwv adjustability; lub tshuab siab heev integrates servo tsav tsim lub taub hau, kaw - voj kub tswj thiab PLC raws li daim ntawv qhia kev tswj.
PLC raws li daim ntawv qhia tshuab khaws cov txheej txheem ua tiav rau txhua lub thawv ntim - qhov kub thiab txias profiles, tsim siab, downtime, pub sij hawm, suav cov chaw - thiab tso cai rau cov tswv lag luam hloov ntawm cov khoom los ntawm kev xaiv cov zaub mov txawv dua li manually kho txhua qhov ntsuas. Qhov no feature ho txo lub sij hawm hloov dua siab tshiab thiab tib neeg yuam kev ntawm cov cav tov uas tsim ntau hom thawv.
Lwm qhov zoo dua Servo-tsav cov txheej txheem yog qhov kev tsim siab thiab qhov nrawm tuaj yeem sib txawv thoob plaws hauv cov xovxwm stroke --feem ntau nrog lub siab tuav ntau dua tom qab softer mus kom ze - uas txo cov kev puas tsuaj rau qhov ntxhib thiab txhim kho angular point clarity nyob rau hauv tob-draw ntim.
Cov khoom siv tau
A daim ntawv noj su lub thawv ua tshuabtsim los rau coated nrog cardboard feem ntau yuav lis:
PE-coated kraft lossis ntawv dawb: feem ntau cov substrate. Tus nqi- zoo, paub nrog cov neeg ua haujlwm pabcuam zaub mov, coj tus cwj pwm zoo.
PLA-coated paperboard: ib qho kev xaiv rau daim ntawv thov uas yuav tsum tau ua daim ntawv thov. PLA lub qhov rais ua haujlwm yog nqaim dua li PE's -feem ntau ntawm 150C thiab 180C- thiab yuav tsum tau tswj qhov kub thiab txias.
Polylactic acid (PLA lossis PLA laminate boards: Daim ntawv pov thawj tag nrho compostability yuav tsum tau siv rau hauv cov kev pabcuam khoom noj siab tshaj.
Kev xaiv cov khoom siv substrate muaj qhov cuam tshuam zoo rau kev ua haujlwm ntawm lub tshuab. Yog hais tias cov cua kub profiles thiab tuag kub tsis recalibrated, lub optimized tshuab rau PE txheej yuav tsis ua tau raws li PL txheej.
Output Ceev thiab muaj peev xwm
Tus nqi ntawm kev tsim cov ntawv noj su yog feem ntau qhia nyob rau hauv tus naj npawb ntawm lub thawv ib feeb. Nyob ntawm lub tshuab configuration, thawv loj thiab substrate:
Nkag mus -theem ib zaug -chamber tshuab: 60–120 thawv / feeb.
Nruab nrab ib chamber: 120-200 thawv / feeb;
Siab -throughput multicavity tshuab: 200–400 thawv / feeb (ua ob los yog ntau lub thawv rau ib lub voj voog luam ntawv)
Txoj kev multicavity - ib tug xovxwm stroke uas tsim ob, peb los yog plaub lub thawv, nrog ib tug dav module thiab sib txuas dav gaps - yog lub ntsiab txoj kev manufacturers nce zus tau tej cov tsis tsuas yog nce lub ceev ntawm lub tshuab, uas yog txwv los ntawm lub physics ntawm cov khoom ntws thiab lub sij hawm sib cuag ntawm cov pwm.
Cov yam ntxwv zoo txiav txim siab lub thawv ntim kev ua tau zoo
Thaum ntsuas cov khoom noj su uas tsim nrog cov khoom siv no, cov neeg ua haujlwm pabcuam zaub mov thiab cov kws tshaj lij tuaj yeem taug qab kev tswj hwm cov txheej txheem tshuab ncaj qha los ntawm cov ntsuas zoo hauv qab no:
Phab ntsa thickness uniformity:Thickness tsis sib xws qhia tias qhov kub tsis sib xws lossis qhov hloov pauv siab. Cov phab ntsa nyias txo cov qauv kev ncaj ncees; ntau thinning nyob rau hauv cov ces kaum qhia tias cov khoom yog stretched tshaj nws cov kev txwv.
Lub ntsiab lus ntawm lub kaum sab xis:Ntsej muag, zoo- lub kaum sab xis tsim qhia tias tsim kom muaj siab thiab pwm pwm kub. Lub kaum sab xis puag ncig los yog ib feem tsim qhia tias tsis muaj cua sov lossis siab.
Seam kev ruaj ntseg:Thaum lub phab ntsa ntawm lub thawv tau koom nrog hauv lub hauv paus, daim ntawv cog lus yuav tsum yog cov khoom siv thiab thermally zoo. Cov txheej txheem ntawm qhov kev sib tshuam no feem ntau qhia txog qhov teeb meem ntawm daim ntawv thov kev sib txuas lossis thermal sealing thaum lub sij hawm tsim.
Dimensional sib xws:Cov ntim khoom uas tsim los ntawm cov khoom zoo-calibrated machines yuav tsum tau muab tso rau hauv kom huv si thiab sib npaug. Dimensional variation-pom tias tsis sib xws stacking lossis xoob lub hau- qhia txog cov txheej txheem tsis ruaj khov lossis cov cuab yeej hnav.
Xaus:
Daim ntawv noj su lub thawv ua tshuabunits hloov cov ntaub ntawv tiaj tus coated rau hauv cov khoom siv, khoom noj khoom haus- cov thawv ntim khoom nyab xeeb los ntawm kev tswj xyuas nruj raws li nws tau pub, rhaub, molded, trimmed thiab sau. Cov thev naus laus zis xav tau ntau dua li qhov nws zoo li, thiab kev tsim ua tiav yuav tsum tau ua tib zoo tswj xyuas qhov kub, siab, lub sijhawm poob thiab cov khoom siv tag nrho ntawm tus nqi ntau dua 200 ntim ib feeb.
Raws li kev tswj hwm thiab cov neeg siv khoom siab nce mus rau kev hloov pauv ib zaug - siv cov ntim khoom noj kom deb ntawm cov npuas dej thiab cov yas substrates, qhov kev thov kom zoo - cov neeg tsim khoom noj su yuav loj tuaj. Rau cov neeg tsim khoom nkag mus rau hauv qhov chaw, nkag siab txog kev tsim vaj tsev tom qab cov khoom siv yog thawj kauj ruam hauv kev ua lag luam zoo thiab kev txiav txim siab ua lag luam.
Cov ntaub ntawv:
Environmental Engineering Research (2024): Sustainable Solutions in Disposable food containers -Cov ntaub ntawv txheej thiab kev ntsuas kev ua haujlwm tsis zoo
Ntim Technology thiab Science (2023): Cov teebmeem ntawm Thermal Molding Operations thiab Pwm ntawm Thermal Moulding ntawm Yas Coated Fiber Materials
Cov ntaub ntawv kev lag luam ntim tshuab rau coated paperboard forming systems
MDPI Designs journal: Sustainable packaging solutions -Food Engineering Perspectives on food containers