Kev lag luam haus dej haus tau hloov pauv mus rau daim ntawv tom qab ib zaug- siv cov kev txwv yas tau tuav thoob plaws European Union (Cov Lus Qhia 2019/904/EU), United Kingdom (Kev Tiv Thaiv Ib puag ncig (Plastic Straws, Paj Rwb thiab Stirrers) (England) Cov Cai Lij Choj 2020. Nyob rau hauv cov ntawv straw pawg, qhov hloov pauv tau yooj yim lossis hloov pauv tau hais kom muaj txiaj ntsig zoo - nws tso cai rau tus neeg haus dej kom tig cov quav rau ntawm lawv lub qhov ncauj yam tsis tau nqa lub khob, muaj txiaj ntsig hauv tsev kho mob, pab- chaw nyob, kev pabcuam menyuam yaus haus dej haus, thiab cov hom café tshwj xeeb. Kev tsim cov yam ntxwv ntawd yuav tsum tau siv cov tshuab uas tawm mus ncaj nraim - kev tsim cov straw hauv ntau txoj hauv kev. Nkag siab txog qhov sib txawv no pib los ntawm kev txiav txim siab raws nraim li cas aFlexible Paper Straw Making Machineyog engineered los ua qhov standard unit tsis tau.
1. Cov Txheej Txheem Txheej Txheem Txheej Txheem: Thawj Txoj Kev Tsim Nyog vs. Secondary Accordion Forming
Txhua daim ntawv straw pib lub neej ntawm tus kauv - qhov txhab lub raj- tsim chav tsev: zaub mov- qib kraft ntawv - feem ntau 60–120 gsm, ua raws FDA 21 CFR § 176.180 rau cov ntawv hauv cov khoom noj khoom haus, thiab EU Regulation 1010 10 2/2. - raug mob ntawm lub kaum sab xis nyob ib ncig ntawm lub mandrel, sib txuas nrog dej-raws li cov khoom noj- nplaum nplaum, sib sau ua ke hauv qhov nro rollers, thiab txiav kom ntev. Cov txheej txheem ntawd tsim ib lub raj ncaj, zoo ib yam. Ib tug txheej txheem ntawv straw tshuab nres ntawm no.
Lub tshuab straw hloov tau txuas ntxiv cov txheej txheem los ntawm qhov chaw nres tsheb thib ob nplooj siab tag nrho los tsim cov accordion (bellows) seem. Qhov chaw nres tsheb no yog mechanically txawv ntawm txhua yam ntws. Nws siv cov txheej txheem ntawm cov log tsis sib haum xeeb lossis cov cuab yeej sib txuas ua ke - nyob ntawm lub tshuab architecture - los siv cov kev tswj hwm radial thiab axial compression rau thaj tsam ntawm pre-tsim raj, feem ntau 15-35 mm ntawm ib kawg. Qhov tshwm sim yog qhov sib npaug ntawm qhov sib npaug ntawm qhov sib npaug uas tso cai rau cov quav cab mus rau 180℃yam tsis muaj kinking, collapsing, los yog delaminating. Tsis muaj tus qauv winding{10}}thiab- txiav tshuab tuaj yeem ua qhov haujlwm no raws li cov kauj ruam ua ke; retrofitting ib tug yog mechanically impractical.
Kev sib cais ntawm thawj lub raj tsim thiab cov txheej txheem accordion thib ob tsis yog qhov txawv me me - nws ua ob npaug ntawm cov txheej txheem tseem ceeb uas lub tshuab yuav tsum tswj ib txhij.
2. Tuag Geometry thiab Dimensional Precision
Lub accordion seem yog geometrically xav tau. Txhua lub fold yuav tsum:
Muaj lub suab sib xws (qhov nruab nrab- mus rau- nruab nrab qhov sib nrug ntawm qhov chaw nyob ib sab, feem ntau 1.8-2.8 hli rau tus qauv 6-8 hli txoj kab uas hla straw)
Ua kom tiav qhov tob tob, uas txiav txim siab ob qho tib si flex lub kaum sab xis thiab lub zog rov qab
Khaws ib lub phab ntsa tuab tas li ntawm cov hauv paus hniav, qhov twg muaj kev ntxhov siab ntau tshaj
On ibFlexible Paper Straw Making Machine, crimping tuag khub yog precision- hauv av kom phim cov straw inch thiab ntawv- phab ntsa thickness ua ke nws yuav ua. Tuag gap kam rau ua nyob rau hauv cov cav tov zoo yog teev rau ± 0.05 hli los yog zoo dua. Kev tsis sib haum xeeb ntawm qhov sib txawv ntawm qhov tuag thiab qhov tseeb phab ntsa thickness (uas txawv nrog cov ntawv - yob batch yam ntxwv) yog thawj qhov ua rau fold cracking lossis whitening - pom qhov ua tsis tiav uas ua rau tsis lees paub raws li kev tshuaj xyuas zoo.
Txuj ncaj- cov tshuab straw yuav tsum tsis muaj cov cuab yeej zoo li no. Lawv tsim mandrel thiab nro rollers yog optimized rau tas mus li - rub winding dynamics, tsis yog rau kev siv sib quas ntus compressive loads rau ib tug tiav tube phab ntsa. Cov txheej txheem kev cai yog txawv kiag li.
3. Daim Ntawv Qhia: Vim li cas Accordion Xav Tau Ntau
Kev xaiv cov ntawv rau ib qho yooj yim straw yog txwv ntau dua rau qhov sib npaug ncaj. Lub accordion txoj kev tsim cov ntsiab lus txhua lub hauv paus folding mus rau rov kho dua cycles - los ntawm cov quav nws tus kheej thaum lub sij hawm tsim khoom, ces los ntawm cov neeg siv flexing thaum muab kev pab. Ob qho khoom siv kho tshuab ua qhov tseem ceeb:
Bending stiffness piv rau ply adhesion balance.Yog tias daim ntawv -rau- ntawv daim ntawv cog lus ntawm cov txheej txheej txheej (muab los ntawm kev ua cov nplaum) tsis txaus, cov quav yuav ua rau interlaminar shear tsis ua hauj lwm - pom tias sib cais ntawm daim ntawv plies raws kab kab. TAPPI T 569 (interlaminar shear zog rau kauv- cov hlab ntsha) muab cov qauv ntsuas cuam tshuam; saj zawg zog- straw daim ntawv Tshuag feem ntau yog xaiv thiab sim tawm tsam qhov kev ntsuas no txawm tias tus qauv tsim los rau cov ntawv siv raj dav dav.
Nthuav tawg lub zog nyob rau hauv -kev pab noo noo.TS EN ISO 2758 Lub zog tawg ntawm daim ntawv thiab TAPPI T 403 txhais lub zog tawg ntub. Ib qho yooj yim straw accordion seem yog tshwj xeeb yog yooj yim rau ya raws - nrawm softening vim hais tias cov hauv paus hniav folds hauv zos txo cov phab ntsa thickness thiab elevated stress. Daim ntawv qhia tshwj xeeb rau cov straws hloov tau feem ntau yuav tsum tau ntub dej ntau dua - tensile retention dua ncaj - straw ntawv - feem ntau 40-55% ntub / qhuav tensile piv ntau dua li 25-35% txaus rau lub raj ncaj.
Ib lub tshuab zoo- tshwj xeeb hauv pawg no yuav suav nrog cov ntawv xa tuaj yob nruj tswj cov tshuab nrog thauj khoom- xovtooj tawm tswv yim, vim tias qhov tsis sib haum xeeb tsis sib haum xeeb - txawm tias nyob rau hauv ib lub yob - hloov pauv lub qhov txhab ntawm phab ntsa ntawm lub qhov txhab, uas tom qab ntawd nthuav tawm ncaj qha mus rau hauv qhov chaw nres tsheb thib ob.
4. Adhesive Requirements ntawm qhov chaw nres tsheb Accordion
Tus qauv tsim cov nplaum rau cov ntawv straws yog cov dej -raws li dextrin los yog hloov cov hmoov txhuv nplej siab, thov ntawm 40–80 g / m² ntawm cov kauv- qhov txhab mob. Rau cov straws ncaj, cov nplaum no txoj hauj lwm zoo kawg ntawm winding consolidation.
Rau cov straws hloov tau, tib lub nplaum yuav tsum ua haujlwm ntxiv: nws yuav tsum nyob twj ywm txaus elastic tom qab kho kom muaj sia nyob ntawm accordion folding kauj ruam yam tsis muaj brittleness tsis ua hauj lwm. Qee qhov tsim cov nplaum uas ua haujlwm tau zoo nyob rau hauv ncaj- straw ntau lawm - tshwj xeeb tshaj yog hla- txuas cov formulations nrog siab pib ntsuab zog - ua nruj dhau ntawm qhov kub thiab txias kom haum rau qhov kev sib tw ntawm cov cag ntoo. Qhov no ua rau cov nplaum nplaum, tsis yog cov ntawv fibers lawv tus kheej, kom tawg thaum lub sijhawm crimping.
Cov tshuaj feem ntau yog hloov kho polyvinyl cawv (PVOH) los yog ethylene vinyl acetate (EVA) dej -raws li nplaum nrog tswj elongation- ntawm - tawg zog. FDA-GRAS xwm txheej ntawm ob qho tib si PVOH thiab EVA rau kev sib cuag zaub mov tsis ncaj (21 CFR § 176.180) txhais tau hais tias kev nyab xeeb zaub mov raug tswj hwm; qhov engineering nce tau zoo heev txhim kho fold kev ncaj ncees. Tsis yog txhua tus qauv ntawv straw tshuab yog tsim los rau ntau dua -cov nqi nplaum uas tsim nyog rau kev tsim cov quav cab.
5. Ceev, Tshaj, thiab Inline vs. Offline Architecture Question
Ib qho ncaj-straw tshuab ua haujlwm raws li qhov txuas ntxiv- rub lub kaw lus: daim ntawv lub vev xaib txav ntawm qhov nrawm nrawm, lub mandrel cua tsis tu ncua, thiab lub tshuab ya ya (servo- taug qab) ua cov straws ntawm nrawm txog 80-120 m / min ntawm cov khoom siv hluav taws xob nyob rau niaj hnub high - ceev units. Kev xa tawm yog qhov tseem ceeb txwv los ntawm winding ceev thiab txiav zaus.
Accordion forming tsis tuaj yeem tshwm sim ntawm cov nrawm hauv kab. Txhua lub voj voog crimping yuav tsum tau lub raj kom nyob ib ntus hauv qhov tuag. Muaj ob txoj hauv kev tsim vaj tsev nyob hauv cov tshuab tsim khoom tam sim no:
Inline integrated tshuabsuav nrog kev tswj hwm - suab sib quas ntus - pub mechanism ntawm ntu winding thiab lub chaw nres tsheb accordion. Lub raj yog qhov txhab tsis tu ncua, buffered, thiab tom qab ntawd dhau los ntawm crimping tuag ntawm qhov chaw nres tsheb accordion lub voj voog tus nqi. Qhov no khaws cia ib leeg - tshuab- kev sib koom ua ke hneev taw tab sis yuav tsum tau servo- tswj synchronization ntawm ob hom txheej txheem txheej txheem tsis sib xws - vim li cas cov tshuab no muaj ntau qhov nyuaj thiab kim dua li cov qauv qauv.
Offline (post{0}}kev ua haujlwm) tshuab dabtsi yog khoovcoj ncaj nraim ua ntej- txiav straws li cov tswv yim thiab tsim cov accordion seem nyob rau hauv ib chav tsev cais. Qhov no decouples ob txheej txheem tab sis yuav tsum muaj kev sib cuam tshuam - txheej txheem tuav, ntxiv lub tshuab thib ob lub hneev taw, thiab nthuav qhia cov cib fim rau kev khawb lossis kev puas tsuaj thaum lub sijhawm hloov cov quav cab. Rau siab - ntim ntau lawm, lub inline integrated architecture feem ntau muab kev lag luam zoo dua thaum tus nqi peev raug txiav tawm, txawm tias pib nqis peev ntau dua.
6. Kev Tswj Xyuas Zoo: Dab tsi tau kuaj xyuas tias cov tshuab txheem tsis ntsuas
Tus qauv ncaj nraim- straw tshuab QC qhov yuav tsum tau tsom rau: sab nraud txoj kab uas hla sib xws, txiav ntev qhov tseeb, ncaj, thiab tawg siab. Cov no yog qhov zoo - nkag siab tsis zoo nrog cov qauv kev sim tsim.
Lub tshuab straw hloov tau ntxiv cov kev soj ntsuam hauv qab no:
| Parameter | Txoj Kev Xeem | Hom Kev Txais Kev Cai |
|---|---|---|
| Accordion suab sib xws | Optical gauge los yog caliper sampling | Tsawg dua los yog sib npaug rau ± 0.15 hli sib txawv ntawm nominal |
| Fold crack / whitening xwm txheej | Kev soj ntsuam pom, lub teeb rooj | Zero pom tawg ntawm 5 × magnification |
| Flex lub kaum sab xis (max tsis muaj kinking) | Manual deflection test ib sampling plan | Ntau dua los yog sib npaug rau 170℃yam tsis muaj deformation mus tas li |
| ntub -kev pabcuam flex cycles ua ntej tsis ua haujlwm | immersion soak (30 feeb, 23℃dej) ces rov flex | Ntau dua lossis sib npaug li 15 lub voj voog ib qho ISO 186 / TAPPI T 423 hloov raws tu qauv |
| Delamination tsis kam ntawm quav hauv paus | Peel zog Test (interlaminar) | Raws li TAPPI T569 tus neeg muag khoom specification |
Tsis muaj ib qho ntawm cov kev txwv no tsis cuam tshuam rau lub tshuab ncaj- straw. Lawv lub xub ntiag ntawm cov phiaj xwm zoo qhia txog qhov sib txawv ntawm qhov tsis ua haujlwm uas accordion geometry qhia.
7. Kev tswj hwm thiab kev ua lag luam kev cuam tshuam
Cov ntawv straws yooj yooj yim poob rau hauv tib cov zaub mov- tiv tauj cov txheej txheem tswj hwm raws li lawv cov neeg sib tw ncaj nraim - FDA 21 CFR Part 176 hauv Tebchaws Meskas, EU Framework Regulation (EC) No 1935/2004 nrog rau Cov Cai 10/2011 tshwj xeeb rau cov yas- cov ntawv pov thawj, cov ntawv pov thawj thiab cov ntawv pov thawj hauv tebchaws. Txawm li cas los xij, cov txheej txheem tsim accordion qhia txog qhov xav tau ntxiv:quav hauv paus yog cov phab ntsa nyias nyias- hla- ntu cov ntsiab lus, txhais tau tias ib qho kev sim tsiv teb tsaws chaw (ua raws li EN 1186 lossis zoo sib xws) yuav tsum muaj kev cuam tshuam txog kev siv geometry tiag tiag ntawm cov quav quav quav quav quav quav, tsis yog qhov nominal ncaj - raj configuration. Ib qhov dej - qhiaFlexible Paper Straw Making Machineyuav tsum tsim cov straws uas dhau qhov kev txwv kev tsiv teb tsaws chaw - feem ntau Tsawg dua lossis sib npaug li 10 mg / dm² tag nrho kev tsiv teb tsaws chaw raws EU Txoj Cai 10/2011 - hauv lawv cov kev hloov pauv, hauv - kev taw qhia kev pabcuam, tsis yog nyob rau hauv daim ntawv pov thawj unflexed configuration.
8. Cov ntsiab lus: Vim li cas Nws Hloov Tsis Tau
Txhawm rau ua kom luv luv: lub tshuab ntawv straw tsis tu ncua yog winding - txiav tshuab. Lub tshuab tsim los rau kev tsim cov straw hloov pauv yog winding -txiav-accordion- ua ke nrog cov khoom siv science, mechanical design, adhesive chemistry, process control, and quality assurance architecture to match. Lub tshuab tsis sib xws ntawm qhov txuas txuas txuas txuas ntxiv thiab qhov sib cuam tshuam precision crimping txhais tau hais tias ob txoj haujlwm tsis tuaj yeem sib koom tib lub tshuab ua haujlwm yam tsis muaj lub hom phiaj - tsim kev koom ua ke architecture. Cov ntawv qhia tshwj xeeb, cov nplaum nplaum, cov cuab yeej tuag, thiab cov txheej txheem tshuaj xyuas rau cov straw hloov tau tsis muaj qhov sib npaug hauv ncaj- straw ntau lawm.
Qhov kev ncua deb ntawm engineering - tsis yog ib qho me me incremental feature - yog cov lus teb meej rau dab tsi ua rauFlexible Paper Straw Making Machinetxawv.
Cov ntaub ntawv
European Parliament.Cov Lus Qhia (EU) 2019/904 ntawm Kev txo qhov cuam tshuam ntawm qee yam khoom yas ntawm ib puag ncig(Ib leeg -Siv Plastics Directive). Phau ntawv Journal ntawm European Union, 2019.
US Food and Drug Administration.21 CFR § 176.180 - Cheebtsam ntawm Ntawv thiab Paperboard nyob rau hauv kev sib cuag nrog Aqueous thiab Fatty Foods. Txoj Cai ntawm Tsoom Fwv Teb Chaws Txoj Cai, Title 21.
European Commission.Txoj Cai (EU) Tsis muaj 10/2011 ntawm Cov Khoom Siv Yas thiab Cov Khoom Siv Lub Hom Phiaj Sib cuag nrog Khoom Noj. Phau ntawv Journal ntawm European Union.
European Parliament thiab Council.Txoj Cai (EC) Tsis Muaj 1935/2004 ntawm Cov Khoom Siv thiab Cov Khoom Siv Lub Hom Phiaj Sib cuag nrog Khoom Noj.
TAPPI.T 569 - Interlaminar Shear Strength ntawm Paperboard thiab Laminated Paperboard. TAPPI Xovxwm, tam sim no tsab.
TAPPI.T 403 - Lub zog tawg ntawm daim ntawv. TAPPI Xovxwm, tam sim no tsab.
ISO.ISO 2758:2014 - Daim ntawv: Kev txiav txim siab ntawm qhov tawg. International Organization for Standardisation.
CEN.EN 1186 - Cov ntaub ntawv thiab cov khoom hauv kev sib cuag nrog cov khoom noj khoom haus: yas. European Committee rau Standardization (cov qauv kev sim siv tau rau cov ntawv coated substrates los ntawm kev sib piv).
UK Parliament.Kev Tiv Thaiv Ib puag ncig (Plastic Straws, Paj Rwb Buds thiab Stirrers) (England) Txoj Cai 2020. Txoj Cai Lij Choj 2020 No. 971.
TAPPI.T 423 - Tshav Tensile Breaking Strength ntawm Ntawv thiab Paperboard. TAPPI Xovxwm, tam sim no tsab.