Yuav Ua Li Cas Teem Lub Pneumatic Dispensing System Rau Sealant Thiab Adhesive Applications
Pneumatic dispensing systems yog cov pob txha ntawm cov khoom siv sib khi thiab cov nplaum nplaum thoob plaws hauv tsheb, aerospace, hluav taws xob tsim khoom, thiab kev tsim kho kev lag luam. Tsis zoo li phau ntawv thov txoj kev, pneumatic dispensing xa cov hlaws loj loj, tswj tus nqi, thiab rov tso dua, uas yog qhov tseem ceeb rau cov khoom lag luam zoo thiab kev ua haujlwm zoo. Txawm hais tias koj tab tom siv silicone sealants rau lub tsheb ua cua sov, xa cov khoom siv nplaum rau hauv kev sib dhos hauv aerospace, lossis siv cov khoom sib txuas rau hauv hluav taws xob, lub tshuab pneumatic dispensing system kom ntseeg tau cov txiaj ntsig zoo.
Phau ntawv qhia no qhia koj txog txhua yam ntawm kev teeb tsa pneumatic dispensing system rau sealant thiab adhesive daim ntaub ntawv, los ntawm kev nkag siab txog cov ntsiab lus tseem ceeb los xaiv qhov tsis zoo rau koj cov khoom tshwj xeeb thiab cov txheej txheem. Thaum kawg ntawm tsab xov xwm no, koj yuav muaj qhov tseeb, kauj ruam - los ntawm - kauj ruam lub hauv paus rau kev teeb tsa, calibrating, thiab daws teeb meem koj lub tshuab xa khoom.
Dab tsi yog Pneumatic Dispensing System
Lub tshuab pneumatic dispensing siv cov cua compressed los tsav cov khoom los ntawm lub reservoir los ntawm lub dispense valve thiab tawm ntawm lub nozzle mus rau lub substrate. Lub kaw lus muab kev tswj xyuas meej thaum cov khoom siv tau raug xa tawm (qhov txhaj tshuaj lossis cov hlaws) thiab cov khoom siv ntau npaum li cas (lub ntim lossis cov hlaws loj), txhua tus tswj hwm los ntawm huab cua siab thiab lub sijhawm tswj.
Pneumatic dispensing muaj ntau qhov zoo dua li lwm txoj kev xa khoom:
- Precision thiab repeatability:Cov timers digital thiab lub siab tswj xyuas kom ntseeg tau tias txhua lub voj voog dispense muab tib lub ntim ntawm cov khoom, txo qis qhov sib txawv ntawm qhov chaw.
- Ceev:Pneumatic systems teb sai sai rau kev tswj cov teeb liab, ua kom siab - nrawm nrawm nrog lub sijhawm nyob tsawg kawg ntawm kev txhaj tshuaj.
- Khoom siv versatility:Los ntawm kev kho lub siab thiab lub sijhawm, ib lub tshuab pneumatic tuaj yeem tswj tau ntau yam ntawm cov sealants thiab cov nplaum, los ntawm qis -viscosity cyanoacrylates mus rau siab -viscosity structural epoxies.
- Kev nyab xeeb:Cov cua compressed yog qhov huv thiab tsis yog{0}}flammable, ua pneumatic dispensing haum rau ib puag ncig uas cov khoom siv hluav taws xob yuav ua rau muaj kev phom sij.
- Tus nqi -effectiveness:Cov tshuab pneumatic muaj qhov txav tsawg dua li cov khoom siv tshuab, txo cov nqi tu thiab sijhawm poob.
Cov cwj pwm no ua rau pneumatic dispensing thev naus laus zis nyiam rau ob qho tib si siab - ntim tshuab cov kab ntau lawm thiab ib nrab- cov chaw ua haujlwm tsis siv neeg uas cov neeg ua haujlwm tuav lub tshuab xa tawm.
Cov Cheebtsam Ntawm Ib Lub Sealant Dispensing Teeb
Kev ua tiav pneumatic dispensing system muaj ntau qhov sib xyaw ua ke, txhua tus ua lub luag haujlwm tshwj xeeb hauv kev tuav cov khoom, tswj kev ntws, thiab kev thov raug. Kev nkag siab txog kev ua haujlwm ntawm txhua feem yog qhov tseem ceeb rau kev teeb tsa thiab kev ua kom zoo.
Cua Tsav lossis Pneumatic Actuator
Lub tshuab cua tshuab los yog pneumatic actuator ua lub hwj chim qhov chaw uas tsav cov khoom los ntawm lub dispensing system. Nyob rau hauv ib qho kev teeb tsa, lub tshuab huab cua pressurizes cov khoom reservoir los yog actuates lub dispense valve mechanism. Rau siab -viscosity sealants, yuav tsum muaj lub tshuab cua uas muaj lub zog txaus los tswj cov khoom ntws tsis tu ncua thiab tiv thaiv kev poob siab uas yuav ua rau cov hlaws loj tsis sib xws. Lub tshuab cua tshuab yuav tsum tau ua kom haum rau cov khoom siv cua compressed, uas feem ntau yog li ntawm 2 txog 7 bar (30 mus rau 100 psi) hauv cov chaw tsim khoom.
Dispense Valve
Lub dispense valve tswj lub sijhawm meej thiab lub sijhawm ntawm cov khoom tso tawm. Muaj ntau hom valve muaj, txhua tus haum rau cov khoom sib txawv thiab cov kev cai thov:
- Snuff-rov qab valve:Pom zoo rau cov ntaub ntawv stringy xws li silicone sealants. Lub valve mechanism retracts me ntsis ntawm qhov kawg ntawm txhua qhov txhaj tshuaj kom tawg cov ntaub ntawv tus Tsov tus tw thiab tiv thaiv txoj hlua.
- Lub valve:Haum rau nruab nrab - viscosity adhesives thiab dav - lub hom phiaj dispensing. Muab cov lus teb ceev ceev thiab kev txhaj tshuaj zoo ib yam -rau- kev txhaj tshuaj rov ua dua.
- Koob valve:Muab kev tswj kom zoo rau cov khoom muaj viscosity tsawg thiab cov ntawv me me, feem ntau siv hauv cov khoom siv hluav taws xob thiab kev sib txuas.
- Diaphragm valve:Zoo tagnrho rau cov khoom abrasive lossis corrosive uas yuav ua rau lwm hom valve. Lub diaphragm cais cov wetted qhov chaw ntawm lub actuator mechanism.
Dej Reservoir
Cov kua dej tuav tuav lub sealant los yog cov khoom nplaum thiab pub nws mus rau hauv lub valve dispense. Reservoir hom muaj xws li:
- Siab tank thiab cartridges:Haum rau nruab nrab - mus rau siab - cov ntaub ntawv viscosity. Lub nkoj ntim siab siv cov cua compressed ncaj qha rau cov khoom, yuam nws los ntawm txoj kab xa khoom. Cartridge systems yooj yim rau ua ntej - cov ntaub ntawv ntim thiab ua kom yooj yim hloov cov ntaub ntawv.
- Drum los yog pail follower phaj:Siv rau loj - daim ntawv thov ntim. Lub phaj raws li nyob rau sab saum toj ntawm cov khoom hauv lub nruas lossis lub thawv, thiab cov cua compressed ua rau lub phaj nqes mus, tuav lub siab zoo ntawm cov khoom txhua lub sijhawm.
- Syringe chim:Siv rau me me - ntim cov khoom ntim, tshwj xeeb hauv cov khoom siv hluav taws xob thiab kev kho mob sib dhos. Cov syringe chim yog muab pov tseg thiab tshem tawm cov ntoo khaub lig- sib kis ntawm cov khoom hloov pauv.
Tswj System
Lub kaw lus tswj tswj kev sib koom tes ntawm huab cua siab, valve actuation, thiab dispense sij hawm. Cov ntsiab lus tseem ceeb ntawm kev tswj hwm muaj xws li:
- Precision siab regulator:Teem lub cua siab thov rau cov khoom reservoir, ncaj qha tswj tus nqi ntws thiab hlaws loj.
- Digital timer maub los:Tswj lub sijhawm qhib ntawm qhov dispense valve, txiav txim siab qhov txhaj tshuaj ntim lossis hlaws ntev. Advanced controllers muab cov programmable txhaj koob tshuaj tivthaiv, ntau -kauj ruam faib ua ntu zus, thiab I/O kev koom ua ke nrog PLCs.
- Ko taw pedal lossis neeg hlau interface:Muab tus neeg teb xov tooj lossis lub kaw lus automated nrog lub teeb liab ua rau pib txhua lub voj voog dispense.
Kauj ruam-Los ntawm- Cov kauj ruam teeb tsa
Ua raws li cov kauj ruam no los teeb tsa koj lub pneumatic dispensing system rau sealant lossis daim ntawv thov nplaum:
Kauj ruam 1: Npaj Compressed Cua Supply
Xyuas kom koj cov cua compressed huv huv, qhuav, thiab tswj tau. Nruab ib lub lim dej -regulator-lubricator (FRL) unit yog tias koj lub cav cua lossis valve xav tau lubrication. Teem cov khoom siv siab rau qhov kev ua haujlwm pom zoo tau teev tseg los ntawm cov chaw tsim khoom siv. Xyuas kom tseeb tias cov khoom cua xa tawm txaus txaus (CFM lossis L / min) kom tswj tau lub siab tsis tu ncua thaum lub sijhawm xa khoom mus tas li.
Kauj ruam 2: Mount lub Dispense Valve thiab Nozzle
Ruaj ntseg lub dispense valve rau lub fixture, bracket, los yog robotic caj npab ntawm qhov siab thiab lub kaum sab xis rau koj daim ntawv thov. Xaiv lub nozzle loj uas phim koj cov hlaws dav dav thiab cov khoom viscosity. Cov kab me me no tsim cov hlaws zoo dua tab sis yuav tsum muaj siab dua thiab tuaj yeem ua rau txhaws nrog cov ntaub ntawv tuab. Nruab lub nozzle thiab nruj tag nrho cov fittings los tiv thaiv huab cua los yog cov khoom xau.
Kauj Ruam 3: Load cov khoom
Sau lub reservoir nrog sealant los yog nplaum raws li cov khoom lag luam cov lus qhia. Rau ob - cov khoom siv, xyuas kom meej qhov sib xyaw kom zoo thiab ua kom zoo sib xws ua ntej thauj khoom. Tsis txhob muab cov npuas npuas thaum lub sij hawm thauj khoom, vim tias cov cua nkag tuaj yeem ua rau tsis sib xws thiab tsis muaj qhov khoob hauv cov hlaws siv.
Kauj Ruam 4: Txuas cov kab kua dej
Txuas cov kua dej (lub hose los yog tubing) ntawm lub qhov hluav taws xob reservoir thiab dispense valve inlet. Siv cov kab ntev tshaj plaws kom txo qis kev poob siab thiab cov khoom siv daws teeb meem. Xyuas kom txhua qhov kev sib txuas muaj kev ruaj ntseg thiab cov kab yog ntsuas rau qhov siab tshaj plaws kev khiav hauj lwm siab ntawm koj lub cev.
Kauj Ruam 5: Teem Lub Cua Txias
Pib nrog qhov teeb tsa tsis tshua muaj siab (piv txwv li, 1 bar / 15 psi) thiab maj mam nce mus txog qhov xav tau txaus siab thiab cov hlaws sib xws tau tiav. Xa mus rau lub sealant viscosity thiab dispensing parameters table nyob rau hauv seem tom ntej rau kev pom zoo pib pressures raws li koj hom khoom.
Kauj ruam 6: Calibrate lub Dispense Timer
Teem lub sijhawm dispense rau lub sijhawm luv luv (piv txwv li, 0.1 vib nas this) thiab xa mus rau qhov chaw sim lossis cov khoom seem. Ntsuas cov tshuaj tua kab mob uas siv qhov ntsuas qhov tseeb, lossis ntsuas cov hlaws ntev nrog calipers. Kho lub sijhawm teem sijhawm kom txog thaum lub ntim ntim lossis cov hlaws ntev sib phim koj qhov tshwj xeeb. Rov ua qhov calibration tsawg kawg peb zaug kom paub meej tias qhov sib xws.
Kauj Ruam 7: Zoo-Thov thiab siv tau
Khiav ob peb lub voj voog ntawm kev tsim khoom ceev thiab tshuaj xyuas cov txiaj ntsig kom zoo sib xws, qhov chaw raug, thiab cov hlaws zoo. Tshawb xyuas cov teeb meem xws li tailing, stringing, air bubbles, or incompleting fills. Ua kev hloov kho rau lub siab, lub sijhawm teem sijhawm, lossis xaiv lub nozzle raws li xav tau. Thaum ua tiav cov txiaj ntsig zoo, sau tag nrho cov chaw rau kev siv yav tom ntej thiab txheej txheem txheej txheem.
Sealant Viscosity Thiab Dispensing Parameters
Lub viscosity ntawm koj cov sealant lossis nplaum yog qhov tseem ceeb uas txiav txim siab qhov kev faib khoom tsim nyog. Cov lus hauv qab no muab cov lus qhia dav dav rau hom sealant. Nco ntsoov xyuas cov lus pom zoo tshwj xeeb nrog koj tus neeg muab khoom siv.
| Sealant / Adhesive Hom | Viscosity Range (cPs) | Pom zoo siab (bar / psi) |
|---|---|---|
| Cyanoacrylate (tam sim no nplaum) | 50 - 200 | 0.5 - 1.0 / 7 - 15 |
| Epoxy (tsawg -viscosity potting) | 200 - 1,000 | 1.0 - 2.0 / 15 - 30 |
| Silicone (RTV, lub hom phiaj dav dav) | 5,000 - 30,000 | 2.0 - 4.0 / 30 - 60 |
| Polyurethane sealant | 10,000 - 50,000 | 3.0 - 5.0 / 45 - 75 |
| Cov txheej txheem epoxy (siab- puv) | 50,000 - 200,000 | 4.0 - 6.0 / 60 - 90 |
| Mastic / hnyav- lub cev sealant | 200,000 - 1,000,000+ | 5.0 - 7.0 / 75 - 100 |
Cov txiaj ntsig no ua cov ntsiab lus pib. Cov kev ua haujlwm tiag tiag tuaj yeem sib txawv raws li qhov kub thiab txias, nozzle geometry, kab ntev, thiab cov khoom tsim tshwj xeeb. Ib txwm ua qhov kev sim tshuaj thiab kho qhov ntsuas tsis tu ncua kom ua tiav cov txiaj ntsig zoo.
Common Dispensing Issues Thiab Solutions
Txawm tias muaj kev teeb tsa kom raug, cov teeb meem xa tawm tuaj yeem tshwm sim vim yog cov khoom hloov pauv, ib puag ncig, lossis hnav dhau sijhawm. Hauv qab no yog cov teeb meem feem ntau thiab lawv cov kev daws teeb meem:
Tailing los yog hlua
Ua rau:Cov khoom siv tsis ua kom huv ntawm lub nozzle thaum lub valve kaw, ua rau ib txoj hlua nyias ntawm cov khoom txuas lub nozzle rau cov hlaws dai.
Kev daws:Siv lub snuff- rov qab valve uas thim lub nozzle me ntsis tom kawg ntawm txhua qhov txhaj tshuaj. Txo lub dispense siab me ntsis, nce lub nozzle txoj kab uas hla, los yog xaiv cov khoom uas muaj zog dua tawg. Rau cov ntaub ntawv muaj zog heev, thov tus neeg sawv cev tso tawm rau lub taub hau nozzle kuj tseem tuaj yeem pab tau.
Inconsistent Bead Size
Ua rau:Kev hloov pauv hauv huab cua siab, cov khoom siv kub, lossis qib reservoir ua rau muaj kev hloov pauv ntawm cov dej ntws ntawm cov khoom xa mus.
Kev daws:Nruab ib lub precision siab regulator nrog ib tug gauge thiab xyuas qhov ruaj khov siab thaum lub sij hawm ua hauj lwm. Khaws cov khoom kub zoo ib yam uas siv cov khoom siv cua sov los yog qhov kub thiab txias - tswj qhov chaw. Khaws lub reservoir sau saum toj no qhov tsawg kawg nkaus kom tsis txhob muaj kev hloov pauv siab vim tias cov khoom siv depleted.
Clogging los yog Ib Feem Thaiv
Ua rau:Cov khoom siv viscosity siab dhau rau qhov loj me, lossis cov khoom txawv teb chaws tau nkag mus rau hauv cov kua dej.
Kev daws:Nce lub nozzle txoj kab uas hla los yog nce cov khoom kub kom txo viscosity. Nruab ib qho hauv - kab lim ntawm lub reservoir thiab dispense valve. Ntxuav thiab ntxuav lub system kom huv si yog tias clogging tseem.
Huab cua npuas hauv Applied Bead
Ua rau:Cov huab cua nkag mus rau hauv cov khoom reservoir los yog cov kab kua dej yog muab faib nrog cov khoom.
Kev daws:Tso cov khoom kom degas tom qab thauj khoom, lossis siv lub tshuab nqus tsev degassing chamber ua ntej xa tawm. Xyuas kom meej tias lub reservoir tau puv maj mam thiab tsis muaj txaws. Tshawb xyuas cov pa tawm hauv cov kua dej sib txuas.
Dripping los yog Oozing
Ua rau:Lub dispense valve tsis kaw tag nrho, cia cov khoom nkag los ntawm lub nozzle ntawm lub voj voog.
Kev daws:Ntxuav lossis hloov lub rooj zaum thiab rab koob. Tshawb xyuas cov ntsaws ruaj ruaj lossis cov khib nyiab hauv lub valve mechanism. Xyuas kom meej tias lub valve actuation siab nyob rau hauv lub chaw tsim tshuaj paus teev ntau yam. Yog tias siv lub diaphragm valve, tshuaj xyuas lub diaphragm rau kev tawg lossis hnav.
Cov lus nug nquag
Dab tsi yog qhov zoo tshaj plaws cua siab rau dispensing silicone sealant?
Rau feem ntau -lub hom phiaj silicone RTV sealants nrog viscosities ntawm 5,000 thiab 30,000 cPs, pib siab ntawm 2 mus rau 4 bar (30 mus rau 60 psi) yog pom zoo. Pib ntawm qis kawg ntawm qhov ntau thiab nce maj mam kom txog thaum koj ua tiav qhov xav tau hlaws loj thiab ntws tus nqi. Kev kub siab dua tuaj yeem ua rau cov khoom siv ntau dhau thiab ua rau nws nyuaj rau tswj cov hlaws geometry.
Ib lub tshuab xa khoom puas tuaj yeem siv ntau hom sealant?
Yog lawm, tab sis lub kaw lus yuav tsum tau ua kom huv si ntawm cov khoom siv hloov pauv kom tsis txhob hla - paug. Qee cov khoom siv tshuaj tsis sib haum thiab tuaj yeem hnov qab yog tias cov khoom seem nyob hauv cov kua dej los yog lub valve. Rau cov ntawv thov uas yuav tsum tau hloov cov khoom siv tsis tu ncua, xav txog kev siv cov syringe pov tseg cov thoob thiab cov tubing, lossis ib qho kev faib khoom rau txhua tsev neeg.
Yuav ua li cas tiv thaiv sealant los ntawm kev kho nyob rau hauv lub dispensing system?
Xaiv cov ntaub ntawv nrog lub lauj kaub tsim nyog rau koj lub voj voog ntau lawm. Flush lub kaw lus nrog cov kuab tshuaj los yog cov tshuaj ntxuav tu thaum kawg ntawm txhua qhov kev ua haujlwm lossis kev tsim khoom. Rau cov dej noo- kho cov ntaub ntawv xws li silicones thiab polyurethanes, siv cov cua qhuav los tiv thaiv kev kho ntxov ntxov hauv cov kua dej. Qee lub tshuab xa tawm muaj kev tshem tawm cov voj voog uas tshem tawm cov khoom seem ntawm lub valve thiab lub nozzle tau txais.
Qhov nozzle loj npaum li cas kuv yuav tsum siv rau 3 hli hlaws dav?
Raws li txoj cai dav dav, xaiv lub taub hau taub uas yog kwv yees li 60 mus rau 80 feem pua ntawm qhov xav tau hlaws dav. Rau cov hlaws 3 hli, lub taub hau taub ntawm 2.0 txog 2.5 hli yog qhov pib zoo. Qhov loj me yog nyob ntawm cov khoom siv viscosity, dispensing siab, thiab cov yam ntxwv ntawm substrate. Ntsuam xyuas qhov sib txawv nozzle qhov ntau thiab tsawg ntawm cov khoom seem kom pom qhov kev sib tw zoo rau koj daim ntawv thov.
Kuv puas xav tau lub tshuab ua kom sov rau siab -cov nplaum nplaum?
Rau siab heev - cov ntaub ntawv viscosity (tshaj 100,000 cPs), cua sov feem ntau tsim nyog los txo cov viscosity mus rau ntau yam khoom siv. Rhaub reservoirs, kua kab, thiab nozzles tswj cov khoom ntawm qhov kub siab tshaj thoob plaws hauv cov txheej txheem dispensing. Nco ntsoov ua raws li cov lus qhia ntawm cov chaw tsim khoom kub kom tsis txhob degrading lub sealant los yog cov khoom nplaum.
Xaus
Kev teeb tsa pneumatic dispensing system rau sealant thiab daim ntaub nplaum yuav tsum tau ua tib zoo saib xyuas cov khoom xaiv, cov khoom siv, thiab cov txheej txheem tsis ua haujlwm. Los ntawm kev nkag siab txog lub luag haujlwm ntawm txhua qhov system tivthaiv, ua raws li cov txheej txheem teeb tsa, thiab siv lub siab thiab lub sijhawm kom raug rau koj cov khoom siv tshwj xeeb, koj tuaj yeem ua tiav zoo ib yam, siab - cov txiaj ntsig tau zoo tshaj plaws uas ua tau raws li koj cov kev xav tau ntau lawm.
Rau manufacturers nrhiav txhim khu kev qha pneumatic dispensing daws thiab precision pneumatic Cheebtsam,Kunshan Des-Valve Precision Machinery Co., Ltd. (DSV)muaj ntau yam ntawm cov khoom txhawb nqa los ntawm ntau tshaj 15 xyoo ntawm kev lag luam kev lag luam. Raws li ibISO 9001: 2015certified chaw tsim tshuaj paus, DSV muab cua motors, pneumatic actuators, thiab dispensing system Cheebtsam engineered rau xav tau kev lag luam daim ntaub ntawv. Txawm hais tias koj xav tau lub tshuab huab cua txheem rau koj qhov kev teeb tsa los yog kev cai - engineering pneumatic tov rau cov txheej txheem tshwj xeeb, DSV muaj cov kws tshaj lij thiab kev tsim khoom xa tuaj.
Tshawb xyuas DSV tag nrho cov khoom lag luam thiab sib tham txog koj qhov kev xav tau ntawm kev xa khoom los ntawm kev mus saibwww.dsv-airmixer.com. Nrog rau kev cog lus rau kev ua tau zoo, kev tsim kho tshiab, thiab kev txhawb nqa cov neeg siv khoom, DSV yog koj tus khub ntseeg siab rau pneumatic dispensing thiab kev daws teeb meem.