Qhov kev hloov kho tshuab yog hais txog kev hloov kho tas mus li ntawm ntau yam tsis sib xws ntawm lub tshuab brewing rau cov pwm tshwj xeeb kom txog thaum tsim nyog cov khoom yas. Qhov ntau yam tsis sib xws ntawm lub tshuab yas npias tuaj yeem raug cais raws li hauv qab no:
1. Cov kev qhia ua ntej:
Rau ib txheej ntawm cov pwm tshwj xeeb, peb qhov kev ntsuas hauv qab no yuav tsum tau txiav txim siab ua ntej pwm sab saud raug tsim:
1.1 Mould loj:
Nws yog Moho × Tsiv × (Mothmi ~ Mothma) ntawm kev txhaj tshuaj molding tshuab. Nws cov khoom yuav tsum ntau dua li cov khoom sib thooj ntawm cov pwm: Mwid × Mlen × Mthi (dav × qhov siab × thickness)
1.2 Kev txhaj tshuaj ntau tshaj:
It is the weight SHWT(g) of the maximum plastic that the injection molding machine can inject. The total weight of each beer of the plastic beer must be less than (or equal to) 85% SHWT, greater than (or equal to) 15% SHWT. (When the total weight of each beer>85 feem pua SHWT yuav txo qhov ua tau zoo ntawm kev txhaj tshuaj molding)
1.3 Clamping quab yuam:
Ntawd yog, qhov sib cais siab tshaj plaws uas cov pwm tuaj yeem dais tom qab pwm raug kaw. Nws loj yog kwv yees li proportional rau qhov projected cheeb tsam ntawm lub molded ib feem. Cov mis laij lej ntxhib yog raws li nram no:
Clamping force (ton)=projection nto ntawm kab noj hniav (inch 2) × cov khoom siv siab coefficient
Ntawm lawv, cov khoom siv siab coefficient ntawm PS, PE, PP yog 1.7; ABS, AS, PMMA yog 2; PC, POM, NYLON yog 3. Rau ib qho pwm tshwj xeeb, qhov tseeb clamping quab yuam tsawg dua los yog sib npaug rau qhov ntsuas clamping quab yuam ntawm lub tshuab npias × 90 feem pua. Lub zog clamping ntau dhau tsis zoo rau lub tshuab npias thiab yuav ua rau pwm deformation.
2. Kev ntsuas kub (T):
Qhov kub ntawm cov txheej txheem npias yog teem sib txawv raws li cov khoom siv roj hmab sib txawv. Nws tuaj yeem muab faib ua hom hauv qab no:
2.1 Cov khoom siv hauv zos kub:
Thaum lub sij hawm tsim cov npias, nws yog ib qho tsim nyog yuav tsum ua kom qhuav cov dej noo hauv cov ntaub ntawv raw hauv qab ib feem pua, uas yog hu ua cov khoom siv ib nrab. Vim tias cov ntsiab lus noo noo siab dua ib feem ntawm cov khoom siv raw, nws yuav ua rau muaj qhov tsis xws luag xws li huab cua paj thiab tev.
2.2 barrel kub:
Lub thoob tuaj yeem muab faib rau hauv seem conveying, seem compression thiab metering seem ntawm lub hopper mus rau lub nozzle. Cov cua kub kub ntawm txhua ntu yog sib sau ua ke hu ua lub chim kub. Barrel kub los ntawm qis mus rau siab. Tsis tas li ntawd, qhov kub ntawm nozzle feem ntau yog qis dua qhov kub ntawm qhov ntsuas qhov kawg.
2.3 Pwm kub:
Hais txog pwm kab noj hniav saum npoo kub. Lub teeb kub sib txawv raws li cov duab ntawm txhua qhov ntawm cov pwm kab noj hniav. Feem ntau, pwm kub ntawm qhov chaw uas nyuaj rau cov kua nplaum yuav tsum siab dua, thiab qhov kub ntawm cov pwm pem hauv ntej yog me ntsis siab dua li ntawm cov pwm nram qab. Thaum qhov kub ntawm txhua qhov raug teeb tsa, qhov kub hloov pauv yuav tsum yog me me, yog li nws yog qhov yuav tsum tau siv cov cuab yeej pabcuam xws li lub tshuab ntsuas kub tsis tu ncua thiab lub chiller los kho cov pwm kub.
3. Txoj hauj lwm parameter:
3.1 Screw txoj hauj lwm (S):
Lub segmental hloov dua siab tshiab txoj hauj lwm ntawm kev txhaj tshuaj ceev thiab siab ntawm cov ntsia hlau yog hu ua cov ntsia hlau txoj hauj lwm.
Cov ntu tshwj xeeb yog raws li hauv qab no: S{{0}} S1, S2, S3, SS. Ntawm lawv, S0 thiab SS yog sib npaug ntawm cov kua nplaum uas yuav tsum tau rau ib npias, thiab SS tsis tuaj yeem tsawg dua 10 hli (feem ntau ntawm 15-20mm); Txoj hauj lwm ntawm cov pwm kab noj hniav yog tshwj xeeb, thiab S0, S1, S2, S3, thiab SS yog cov seem txhaj tshuaj. Ntawm lawv, S3 thiab SS yog cov ntu tuav.
3.2 Glue pumping txoj hauj lwm (SUCK BACK):
Thaum cov ntsia hlau nres rotating tom qab rov qab cov khoom, cov ntsia hlau muaj ib qho rov qab twj tso kua mis, uas yog hu ua kua nplaum twj, thiab qhov kev ncua deb ntawm lub twj tso kua mis yog cov kua nplaum twj tso kua mis. Feem ntau, nws yog tsawg dua 5 hli. Lub hom phiaj ntawm kev khiav tawm yog los tiv thaiv cov yaj los ntawm ntws ntawm lub nozzle; Kev khiav tawm yuav tsum tsim nyog, thiab kev khiav tawm ntau dhau yuav ua rau muaj qhov tsis xws luag xws li huab cua thiab npuas hauv cov khoom tiav.
3.3 Pwm qhib txoj hauj lwm:
Qhov kev ncua deb ntawm cov pwm rov qab thiab cov pwm pem hauv ntej yog hu ua pwm qhib qhov nrug. Nws qhov loj me tuaj yeem tshem tawm cov khoom yas kom du.
Nws raug nquahu kom ncua lub sijhawm mus ncig yog tias nws loj dhau.
3.4 Ejector txoj hauj lwm:
Nws yog qhov kev ncua deb ntawm pwm nto tom qab lub ejector tus pin ntawm pwm yog ejected. Ua kom cov khoom nqa tawm ntawm lub nraub qaum pwm nto
Thiab nws yog advisable kom yeej nws smoothly. Ceev faj kom tsis txhob cia lub thimble mus txog qhov kawg, thiab yuav tsum muaj cov npoo txaus kom tsis txhob tawg lub slingshot ntawm ejector phaj ntawm pwm.
4. Kev ntsuas siab:
4.1 Txhaj siab (IP):
Lub zog tsav tsheb uas muab los ntawm cov ntsia hlau rau lub yaj yog hu ua kev txhaj tshuaj siab. Raws li txhua ntu ntawm txoj haujlwm ntsia hlau, qhov sib txawv propulsion quab yuam ntawm cov ntsia hlau tuaj yeem teem caij rau cov yaj. Qhov chaw ntawm lub zog propulsion ntawm txhua ntu feem ntau yog nyob ntawm txoj haujlwm uas cov yaj ntws hauv cov pwm kab noj hniav. Thaum cov duab ntawm cov pwm kab noj hniav ntws los ntawm qhov nyuaj thiab cov kua nplaum yog nyias, qhov kev tiv thaiv rau cov yaj yuav loj, thiab yuav tsum muaj qhov loj dua. Thaum cov duab ntawm txoj hauj lwm ntws yog qhov yooj yim thiab qhov tsis kam ntawm cov yaj yog me me, lub zog me me tuaj yeem raug teeb tsa los txo qhov poob ntawm lub tshuab npias.
4.2 Tuav siab (HP):
Thaum cov kua nplaum yaj puv cov pwm kab noj hniav, txhawm rau txhawm rau them nyiaj rau qhov chaw tsim los ntawm pwm kab noj hniav thiab compact cov ntaub nplaum vim qhov txias thiab shrinkage ntawm cov khoom siv kua nplaum, cov ntsia hlau yuav tsum muab qee qhov kev quab yuam rau cov kua nplaum. , thiab lub zog no yog lub zog tuav.
Txoj hauj lwm txav ntawm cov ntsia hlau pas nrig ntawm no yog: S3 SS. Pressurization yog qhia los ntawm HP. Feem ntau, nruab nrab siab yog siv rau cov roj hmab loj, thiab tsis tshua muaj siab yog siv rau cov roj hmab me me. (Feem ntau HP tsawg dua IP).
4.3 Back pressure (BACK PRESS):
Thaum qhov kev txhaj tshuaj thiab kev ceev ceev tau ua tiav, cov ntsia hlau pib tig, kom cov khoom siv roj hmab thaum xub thawj nyob rau hauv cov ntsia hlau zawj thiab lub hopper yog nias rau hauv pem hauv ntej kawg ntawm lub thoob (metering chamber) los ntawm cov ntsia hlau zawj, thiab cov kua nplaum yaj. muaj cov tshuaj tiv thaiv quab yuam ntawm cov ntsia hlau nyob rau lub sijhawm no Forcing tus ntsia hlau kom thim rov qab yog hu ua cov khoom siv rov qab.
Txhawm rau ua kom qhov ntom ntom ntawm cov yaj nyob rau pem hauv ntej kawg ntawm lub thoob (metering chamber) thiab kho qhov ceev ntawm cov ntsia hlau kom thim rov qab, ib qho kev hloov kho yuav tsum tau ntxiv rau cov ntsia hlau, uas yog hu ua rov qab siab. Kev kho lub nraub qaum tuaj yeem kho qhov sib xyaw ntawm cov toner thiab cov khoom siv yas, thiab cuam tshuam rau cov nyhuv yas. Kev tsim nyog rov qab siab tuaj yeem txo qhov tsis xws luag xws li xim sib xyaw, huab cua npuas, thiab qhov tsis sib xws ntawm cov khoom yas, tab sis lub siab rov qab yuav tsum tsis txhob loj dhau, vim tias lub zog rov qab ntau dhau yuav ua rau cov yaj mus rau decompose, ua rau tsis muaj xim, cov kab dub thiab lwm yam. qhov tsis xws luag ntawm cov khoom yas. Tsis tas li ntawd, nce lub siab rov qab yuav ua rau lub voj voog ntau lawm thiab ua rau poob ntawm lub tshuab npias, feem ntau txog 10kg / cm2.
4.4 Mould tiv thaiv xovxwm:
Kuj hu ua low-voltage tiv thaiv, nws yog ib qho khoom siv tiv thaiv rau lub tshuab npias rau pwm. Los ntawm txoj hauj lwm tiv thaiv pwm mus rau lub sijhawm thaum cov pwm pem hauv ntej thiab sab nraub qaum txuas nrog, lub sijhawm no, lub zog ntawm lub tshuab clamping los thawb lub nraub qaum ntawm cov pwm yog qhov tsawg, thiab thaum muaj kev tiv thaiv siab tshaj qhov kev tsav tsheb. ntsib thaum lub sij hawm kev nce qib, Cov pwm yuav qhib cia li nres cov pwm clamping kev txiav txim, yog li ntawd yog tias muaj ib qho txawv txawv ntawm cov pwm pem hauv ntej thiab nram qab pwm thaum pwm clamping, pwm tuaj yeem tiv thaiv.
Cov pwm clamping tsis tshua muaj siab yog feem ntau loj dua cov pwm tsis muaj kab, thiab tus nqi yog 10-20kg / cm2.
4.5 Mould Contact Xovxwm:
Kuj tseem hu ua clamping siab, thaum cov pwm raug kaw kom ua rau pem hauv ntej thiab nram qab pwm qhov chaw sib haum ua ke, lub clamping quab yuam yuav cia li hloov los ntawm kev kub siab mus rau siab. Lub clamping siab yuav tsum tsis txhob siab dhau, txwv tsis pub nws yuav ua rau pwm nto; thaum kho, nws yog txaus los ua rau pem hauv ntej thiab nram qab pwm nto muaj ib tug tej yam siab, feem ntau yog 80-100kg/cm2. Tsawg ceev, siab clamping).
4.6 Ejector siab:
Lub ejection quab yuam siv los ntawm lub tshuab npias mus rau sab nraum qab ntawm lub ejector phaj ntawm pwm yuav tsum loj txaus kom eject lub yas qhov chaw.
5. Ceev parameter:
5.1 Txhaj ceev (V):
Thaum lub tshuab npias yog txhaj cov kua nplaum, lub hau ntswj tsav lub nrawm nrawm ntawm cov yaj. Kev txhaj tshuaj ceev yog feem ntau cuam tshuam los ntawm cov yam ntxwv xws li kev txhaj tshuaj siab, qhov ua haujlwm ntawm pwm kab noj hniav kom yaj, thiab viscosity ntawm cov yaj nws tus kheej. Thaum qhov kev txhaj tshuaj siab ntau dua qhov kev tiv thaiv kab noj hniav thiab cov viscosity ntawm cov yaj, cov txheej txheem txhaj tshuaj nrawm tuaj yeem ua tiav. Ua si puv.
Piv txwv li: S0, S1 yog V1, lub sijhawm no, cov kua nplaum yaj ua rau cov kab noj hniav, thiab yuav tsum muaj qhov ceev thiab nruab nrab siab; S1, S2 yog V2, thiab cov kua nplaum yaj ua rau cov kab noj hniav nyob rau lub sijhawm no, thiab yuav tsum muaj kev kub ceev thiab siab siab; S2, S3 yog V3, thiab cov kua nplaum yaj ua rau cov khoom yas Periphery, qhov nruab nrab ceev thiab tsis tshua muaj siab yuav tsum tau, thiab kev txhaj tshuaj maj mam txo qis nrog qhov nce ntawm kab noj hniav kom txog thaum nws ncav cuag xoom. Qhov kev teeb tsa tshwj xeeb ntawm kev txhaj tshuaj nrawm ntawm txhua ntu yog nyob ntawm cov duab ntawm cov yaj uas ntws los ntawm kab noj hniav.
5.2 Screw ceev (R):
Qhov ceev ntawm cov ntsia hlau pub khoom mus rau lub chim metering chamber yog hu ua tus ntsia hlau ceev. Nws cuam tshuam qhov rov qab ceev ntawm cov ntsia hlau. Thaum lub nraub qaum yog teem, qhov siab dua qhov ntsia hlau ceev, qhov rov qab nrawm dua. Kho cov ntsia hlau ceev tuaj yeem kho cov nyhuv plasticizing ntawm cov khoom siv roj hmab thiab txhim kho qhov tsis xws luag xws li xim tsis sib xws thiab xim sib xyaw ntawm cov khoom. Txawm li cas los xij, yog tias cov ntsia hlau ceev siab dhau lawm, cov khoom siv roj hmab yuav decomposed vim ntau dhau shearing, thiab nyob rau tib lub sij hawm, huab cua yuav muab sib xyaw rau hauv lub thoob, ua rau cov khoom tsim npuas.
PC, PE, PVC, POM, PMMA thiab lwm yam khoom siv hluav taws xob uas muaj cov viscosity siab tsis haum rau cov ntsia hlau siab ceev. Cov ntsia hlau ceev yog sawv cev los ntawm R1 thiab R2. Feem ntau, R1 siv nruab nrab ceev thiab R2 siv qis qis, uas muaj kev tiv thaiv zoo ntawm lub tshuab npias.
5.3 Glue pumping ceev (SB.SPEED):
Kev khiav ceev thaum lub hau ntswj khiav tawm yog hu ua cov kua nplaum siv ceev, thiab feem ntau nws raug nquahu kom xaiv qhov nruab nrab lossis qis qis.
5.4 Qhib thiab clamping ceev:
Pwm qhib ceev yog sawv cev los ntawm MO1, MO2, thiab MO3. Feem ntau, qhov qeeb qeeb yog siv thaum cov pwm pem hauv ntej thiab sab nraub qaum sib cais, yog li qhov chaw ntawm pwm nrog cov qauv sib txawv. Kev teeb tsa dav dav rau ob lub phaj pwm: qeeb, ceev, thiab qeeb; Kev teeb tsa dav dav rau peb-phaj pwm: nruab nrab, qeeb, thiab qeeb. Clamping ceev yog qhia los ntawm: MC1, MC2, MC3, feem ntau qeeb qeeb yog siv thaum lub hauv ntej thiab nram qab pwm nto nyob rau hauv kev sib cuag, yog li qhov chaw ntawm ob-platen pwm: nruab nrab, ceev, qeeb; qhov teeb tsa ntawm peb-platen pwm: nruab nrab, qeeb, qeeb.
5.5 Ejector ceev (EJ SPEED):
Qhov ceev ntawm qhov thimble ejects cov yas yog hu ua thimble ceev. Cov kua nplaum ntawm cov qauv sib txawv muaj qhov sib txawv, thiab qhov nruab nrab ceev feem ntau yog siv.
6. Lub sij hawm parameter (t):
6.1 Round khoom lub sij hawm:
Cov sib xyaw ua ke sib txawv xav tau lub sijhawm sib txawv.
6.2 Lub Sijhawm Txhaj Tshuaj (INJ-HOLD TIME):
Lub sij hawm xav tau rau cov ntsia hlau txav los ntawm S0 mus rau S3 yuav tsum tau teem caij kom phim txoj hauj lwm ntawm cov ntsia hlau.
6.3 Lub sij hawm tuav (HT):
Lub sijhawm los ntawm cov ntsia hlau S3 mus rau qhov pib pub mis feem ntau yog 1-2 vib nas this, thiab nws yuav tsum tsis txhob ntev dhau, txwv tsis pub nws yuav nkim sijhawm.
6.4 Lub Sijhawm Txias (Lub Sijhawm Txias):
Lub sij hawm txias yog lub sij hawm txij li thaum cov ntsia hlau pib pub rov qab mus rau thaum pwm npaj qhib. Lub sijhawm txias tsis tuaj yeem tsawg dua lub sijhawm rov qab los.
6.5 Lub sij hawm voj voog (CYCLE TIME):
Lub sijhawm xav tau rau lub tshuab brewing pib cov txheej txheem brewing thiab pib cov txheej txheem brewing tom ntej. Qhov yuav tsum tau muaj yog qhov luv dua qhov zoo dua ntawm qhov chaw tsim nyog ntawm cov khoom yas.
