Cov ntaub ntawv pov tseg tam sim no yog ib yam khoom siv hauv kev pabcuam zaub mov, ntim cov khw muag khoom, thiab lub Hoobkas xa khoom. Ntawm ntau cov duab ua niaj hnub no, yim - sab phaj muaj qhov tshwj xeeb. Nws sib npaug zoo tsim, siv cov khoom zoo, thiab zoo saib. Yog li paub li cas iboctagonal ntawv tais txoj kev tshuabhloov cov ntawv tiaj tus rau hauv lub tais tiav txhais tau tias ua raws li cov kauj ruam ntawm kev siv tshuab. Thiab txhua kauj ruam nyob ntawm qhov ua ntej nws.
Yog li tsab xov xwm no saib txoj hauv kev tseem ceeb ntawm cov tshuab no ua haujlwm, cov laj thawj engineering tom qab txhua theem, thiab yog vim li cas yim -sided shape xav tau kev ua haujlwm ceev faj ntau dua li cov duab plaub.
Dab tsi ua Octagonal Trays Mechanically txawv
Ua ntej nkag mus rau hauv lub tshuab ua haujlwm, nws yuav pab kom txaus siab vim li cas yim -ib sab geometry tseem ceeb los ntawm kev tsim khoom. Ib daim duab plaub yuav tsum muaj plaub lub kaum folds. Ib octagon yuav tsum tau yim fold kab, plaub ntawm uas txiav diagonally hla cov ces kaum. Cov kab pheeb ces kaum no qhia txog kev sib txuas khoov kev ntxhov siab uas cuam tshuam sib txawv nrog cov kev coj ua ntawm cov ntawv sau ntawv.
Kev tshawb fawb hauv BioResources hais txog kev tswj cov folding dawb paug nyob rau hauv paperboard tray press forming hais tias crease pattern design yog ib qho tseem ceeb heev. Yog li nws ncaj qha cuam tshuam rau lub kaum sab xis thiab cov khoom ntim khoom. Thaum diagonal creases nyob rau hauv qhov chaw tsis ncaj ncees lawm los yog tsis tau qhab nia txaus, ces cov dawb paug fights folding raws txoj cai. Yog li qhov no ua rau cov fab tsis zoo, qhov siab tsis sib xws ntawm phab ntsa, lossis cov kab nrib pleb ntawm cov ntsiab lus kev ntxhov siab. Yog li lub octagonal daim ntawv tais txoj kev tshuab xav tau ib qho kev ceev faj ntau tshaj qhov kev npaj ua ntej tshaj li cov tshuab ua rau cov qauv duab plaub.
Kauj Ruam 1: Kev pub khoom noj thiab kev sau npe dawb
Lub voj voog ntau lawm pib thaum ib pawg ua ntej- txiav lossis yob- cov ntawv ntim khoom noj nkag mus rau hauv lub tshuab pub mis. Flat blanks - twb txiav mus rau lub octagonal zoo nrog ua ntej - qhab nia fold kab - raug tshem tawm ntawm pawg thiab tsiv mus rau qhov chaw tsim khoom. Qhov no yog ua tiav nrog lub khob nqus dej, kev sib txhuam chais, lossis cov tshuab grippers, nyob ntawm seb lub tshuab tsim.
Yog li kev sau npe dawb huv ntawm theem no yog qhov yuav tsum tau ua. Ib qho misalignment ntawm qhov khoob thiab cov pwm tsim yuav ua rau muaj teeb meem hauv txhua kauj ruam tom ntej. Tom qab ntawd qhov no ua rau cov tais nrog cov phab ntsa tsis sib xws lossis cov kaum sab xis. Yog li siab - ceev octagonal daim ntawv tais txoj kev tshuab feem ntau muaj cov khoom siv kho qhov muag lossis cov khoom siv hluav taws xob uas kuaj xyuas qhov chaw dawb paug ua ntej lawv cia lub voj voog pib.
Misaligned blanks yog ejected es tsis ua.
Pub tus nqi txiav txim siab ntau lawm, tab sis kev cia siab rau kev noj zaub mov txiav txim siab cov txiaj ntsig siv tau tiag tiag. Cov tshuab tsim los rau kev thov cov ntawv thov zaub mov tseem ceeb ua ntej ib zaug - pub dawb pub dhau qhov nrawm, txij li ob npaug - pub dawb uas cuam tshuam cov chaw tsim khoom ua rau lub sijhawm poob qis dua li qhov txo qis me ntsis.
Kauj Ruam 2: Cua sov (qhov twg muaj feem xyuam)
Qee qhov kev teeb tsa ntawm octagonal daim ntawv tais txoj kev tshuab suav nrog lub chaw ua cua sov nyob nruab nrab ntawm kev pub noj dawb thiab xovxwm - ua cov kauj ruam. Qhov no siv rau cov ntawv sau nrog polyethylene lossis lwm cov txheej txheem thermoplastic, nrog rau cov ntawv thov uas cov substrate tau txais txiaj ntsig los ntawm thermal txias ua ntej folding.
Thaum tshav kub kub softens lub thermoplastic txheej, tso cai rau nws ua raws li pwm geometry yam tsis muaj cracking los yog lifting ntawm quav kab. Rau uncoated substrates, tswj cov av noo los yog qhov kub thiab txias tuaj yeem txo qhov nruj ntawm cov lus qhia ntawm cov nplej -ib qho tseem ceeb thaum lub tshuab yuav tsum quav ob qho tib si thiab hla cov fiber ntau orientation hauv ib lub voj voog.
Qhov kub thiab txias lub sij hawm nyob ntawm qhov chaw nres tsheb cua sov yuav tsum tau calibration rau cov ntaub ntawv tshwj xeeb qib thiab txheej hnyav. Cov cua kub tsis txaus tawm ntawm cov khoom siv nruj heev rau kev txhim khu kev qha kaum sab xis; Thaum tshav kub kub ntau dhau degrades lub substrate los yog ua rau cov txheej drip thiab paug cov pwm nto.
Kauj Ruam 3: Xovxwm Tsim - Tus Txheej Txheem Kev Ua Haujlwm
Cov xovxwm- txheej txheem tsim yog lub plawv ntawm txhua lub octagonal daim ntawv tais txoj kev tshuab. Ib daim ntawv sau npe dawb yog thauj mus rau hauv kab noj hniav- qhov tseeb- tshuab pwm uas txhais cov duab puab sab hauv ntawm lub tais tiav- thiab ib qho kev sib tw sib tw los ntawm saum toj no.
Raws li cov punch ua rau kev sib cuag nrog qhov khoob, nws tsav cov khoom tiaj tus mus rau hauv kab noj hniav. Lub yim folds-plaub qhov sib npaug mus rau lub cardinal sab thiab plaub kab pheeb ces kaum ntawm cov ces kaum - qhib ua ntu zus raws li thaj chaw sib txawv ntawm qhov khoob ntsib cov kab noj hniav. Lub kaum sab xis ntawm kab pheeb ces kaum quav sab hauv, thiab tuav cov cuab yeej lossis folding caj npab ib txhij nias txhua lub vaj huam sib luag rau hauv kev sib cuag nrog nws cov phab ntsa uas nyob ib sab.
Academic finite element modeling of the tray forming operations, luam tawm los ntawm cov phooj ywg - tshuaj xyuas cov ntaub ntawv kho tshuab engineering, qhia tau hais tias qhov kev ntxhov siab faib thoob plaws hauv lub octagonal dawb paug thaum lub sij hawm xovxwm no yog qhov nyuaj ntau dua li cov duab plaub. Lub kaum sab xis ntawm kab pheeb ces kaum muaj kev khoov ib txhij nyob rau hauv ob lub dav hlau, tsim ib qho peb -dimensional deformation xeev uas yuav tsum tau cov cuab yeej tsim geometry coj cov khoom ntws es tsis yog tsuas yog yuam nws mus rau hauv txoj hauj lwm.
Kev ua kom nrawm, punch mus deb, thiab tuav lub sijhawm ntawm kev nias tag nrho cuam tshuam rau lub tais kawg thiab nws muaj zog npaum li cas. Yog li cov cav tov uas tau ua kom ruaj khov zoo hauv siab - ntim ntau lawm feem ntau yog siv servo- tsav tshuab xovxwm. Tom qab ntawd cov tshuab no cia koj tswj cov kev teeb tsa raws nraim. Yog li lawv tsis cia siab rau cov khoom siv kho tshuab cam profiles.
Kauj Ruam 4: Daim ntawv thov Adhesive thiab Bond tsim
Thaum cov phab ntsa raug tsim thiab tuav nyob rau hauv qhov chaw, lub ces kaum flaps yuav tsum tau kho. Yog li theem no txhais tau tias muab cov kua nplaum kub yaj rau ntawm qhov chaw uas yuav kov. Qhov no yog ua ua ntej los yog thaum lub sij hawm folding kauj ruam. Tom qab ntawd cov nplaum nplaum yog nias ua ke nrog lub zog txaus thiab tuav lub sij hawm ua kom muaj kev sib raug zoo.
Kub yaj adhesive dispensing systems nyob rau hauv lub octagonal daim ntawv tais txoj kev tshuab yuav tsum xa zoo ib yam hlaws geometry ntawm txhua daim ntawv thov taw tes. Cov nplaum me me ua rau cov pob txha tsis muaj zog uas ua tsis tau raws li kev thauj khoom. Ntau dhau ua rau nyem- tawm uas kis kab mob hauv lub tais los yog txhaws cov pwm pwm. Adhesive kub, daim ntawv thov siab, thiab nozzle geometry yuav tsum tau calibration raws sij hawm kom tswj tau cov zis zoo ib yam.
Tom qab muab cov kua nplaum tso rau, cov ces kaum daim ntawv cog lus yuav tsum txias thiab teem ua ntej lub tais tawm ntawm pwm. Yog li sai dua - teeb tsa hom kua nplaum xav tau lub sijhawm tuav tsawg dua thiab muab lub voj voog ntau dua. Tab sis cov nplaum muaj zog nrog lub sijhawm qhib ntev dua cia koj tso cov khoom ntau dua ua ntej daim ntawv cog lus yuav ruaj khov.
Kauj Ruam 5: Tshem tawm thiab xa tawm
Lub tais tsim tau raug thawb tawm ntawm lub pwm kab noj hniav nrog cua ejection pins, mechanical lifters, los yog lub tshuab nqus tsev rov qab. Qhov no nyob ntawm lub tais zoo li thiab ntau lawm ceev. Yog li cov kauj ruam no xav tau kev saib xyuas vim tias cov tais tshiab tseem muaj qee qhov kev ntxhov siab los ntawm kev khoov thiab gluing cov kauj ruam. Tom qab ntawd cov ejection ntxhib tuaj yeem khoov lub kaum sab xis ua ntej cov kua nplaum tau teem rau nws lub zog kawg.
Tom qab ejection, cov tais txav ntawm lub conveyor mus rau stacking los yog sau chaw. Yog li stacking qhov chaw yuav tsum suav rau yim -sided duab thaum lawv zes cov tais rau kev tuav hauv qab zoo. Lub ntuj zoo ntawm yim- sab ntim tso cai nruj dua li qee cov duab khib. Tab sis lawv xav tau cov kev qhia sib txawv ntawm cov khoom sib txawv piv rau cov duab plaub.
Tswj Systems thiab Machine Automation
Cov qauv tshiab ntawm octagonal daim ntawv tais txoj kev tshuab ua haujlwm raws li programmable logic controller (PLC) systems. Yog li cov tshuab no tswj lub sijhawm ntawm txhua kauj ruam - pub, cua sov, nias stroke, kua nplaum daim ntawv thov, thiab ejection - tag nrho hauv ib lub voj voog sib tw. Yog li cov neeg ua haujlwm teeb tsa cov kev teeb tsa los ntawm tib neeg -machine interface (HMI) screen. Tom qab ntawd tshuab- kev soj ntsuam hauv xeev muab cov lus pom zoo ntawm kev tsim khoom nrawm, kev ua txhaum cai, thiab kev siv cov khoom siv.
Yog li ob npaug -chaw nres tsheb designs khiav ob lub molds los ntawm ib tug tsav system. Tom qab ntawd qhov no ua rau ob npaug ntawm cov zis yam tsis ua rau lub tshuab hneev taw loj dua. Cov cuab yeej cais rau txhua qhov chaw nres tsheb cia koj ua cov tais sib txawv ntawm tib lub sijhawm. Los yog nws cia koj hloov ntawm hom ntawv sai sai thaum koj cov khoom sib xyaw xav tau.
Material Compatibility thiab substrate xav txog
Qhov ntau ntawm cov ntawv ntawv qib uas lub octagonal ntawv tais txoj kev ua tshuab tuaj yeem ua tau nyob ntawm lub tshuab xovxwm quab yuam, muaj peev xwm ua kom sov, thiab tsim cov cuab yeej. Tej substrates muaj xws li cov khoom bleached sulfate (SBS) board, coated recycled board (CRB), thiab zaub mov pab pawg thawj coj saib nrog barrier coatings. Board hnyav li ntawm kwv yees li 200 mus rau 500 grams ib square meter sawv cev rau lub tswv yim qhov rais rau feem ntau coj mus muag tais daim ntaub ntawv.
Grain kev taw qhia txheeb ze rau cov kab folds cuam tshuam txoj kev ua tau zoo heev. Paperboard folds ntau huv si thaum uas tig mus rau lub tshuab kev taw qhia ntawm lub substrate. Ntawm qhov octagonal dawb paug, tsawg kawg yog qee cov kab folds yuav khiav hla cov kev taw qhia fiber ntau, xav tau cov qhab nia zoo meej los tiv thaiv kev puas tsuaj ntawm cov haujlwm ntawd. Ua ntej- tau qhab nia blanks tsim nrog cov cuab yeej crease tsim los rau qib board tshwj xeeb thiab tsim pwm geometry tsim cov txiaj ntsig zoo dua li cov qhab nia generic tau yoog rau ntau hom tshuab.
Daim ntawv thov thiab kev lag luam ntsiab lus
Kev pabcuam zaub mov sawv cev rau lub lag luam tseem ceeb rau octagonally form trays-geometry haum rau feem tswj cov thawv, bakery zaub ntim, thiab nqa- tawm lub thawv zaub mov. Lub yim sab kuj muab thaj chaw loj dua rau kev luam tawm lub npe piv rau cov ntawv sib npaug sib npaug ntawm tib lub ntim ntim.
Tshaj li kev pabcuam zaub mov, tib txoj hauv kev tsim siv rau cov tais ntim khoom siv rau kev koom ua ke thiab kev xa khoom. Raws li kev txiav txim siab txog kev ruaj ntseg txuas ntxiv ua rau kev hloov pauv ntawm kev nthuav dav polystyrene thiab ib zaug - siv cov yas, molded thiab xovxwm - cov ntawv ntim tau txais kev saib xyuas thoob plaws cov khoom siv saw hlau uas muaj cov ntaub ntawv cushioning thiab ntim nrog rau qhov hnyav thiab rov ua dua tshiab.
Xaus
Lub hauv paus ntsiab lus ntawm kev ua haujlwm ntawm octagonal daim ntawv tais ua tshuab qhia txog kev ua tib zoo ua ntu zus: kev sau npe dawb paug, tswj cov cua sov, xovxwm tsim tawm tsam cov cuab yeej precision, cov nplaum nplaum, thiab cov tshuab ejection. Txhua theem nyob ntawm kev sib koom tes nruj nrog lwm tus, thiab octagonal geometry ntxiv qhov nyuaj ntawm txhua qhov taw tes piv rau cov qauv duab plaub.
Paub tias cov khoom no ua haujlwm li cas pab cov neeg yuav khoom, cov kws tsim khoom ntim khoom, thiab cov thawj coj tsim khoom xyuas seb lub tshuab puas tuaj yeem ua raws li lawv xav tau. Yog li lawv phim cov ntawv hom nws tuaj yeem nqa tau, qhov tso zis nrawm, thiab cov cuab yeej hloov tau yooj yim rau cov kev xav tau ntawm lawv tus kheej cov khoom thiab ntau npaum li cas lawv xav ua.
Qhov chaw:
Tanninen et al., "Controlling the Folding of the Blank in Paperboard Tray Press Forming," BioResources (NC State University), Vol. 10, No. 3 (2015)
Lindberg thiab Kulachenko, "Txoj Kev Ua Haujlwm ntawm Paperboard: Kev Tshawb Fawb Txog Kev Tshawb Fawb Txog Kev Tshawb Fawb," Ntim Tshuab thiab Kev Tshawb Fawb (2021)
Tanninen, "Xovxwm Tsim ntawm Paperboard - Advancement of Technology," Doctoral thesis, Lappeenranta University of Technology (2017)