CN101049761A - Method and device for cleaning out printing head of piezoelectric type ink jet printer - Google Patents

Method and device for cleaning out printing head of piezoelectric type ink jet printer Download PDF

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Publication number
CN101049761A
CN101049761A CN 200710040484 CN200710040484A CN101049761A CN 101049761 A CN101049761 A CN 101049761A CN 200710040484 CN200710040484 CN 200710040484 CN 200710040484 A CN200710040484 A CN 200710040484A CN 101049761 A CN101049761 A CN 101049761A
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CN
China
Prior art keywords
printhead
system
cleaning
container
ink jet
Prior art date
Application number
CN 200710040484
Other languages
Chinese (zh)
Inventor
刘天西
汪敏
王萌
武猛
陈鹏
李冰
Original Assignee
复旦大学
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 复旦大学 filed Critical 复旦大学
Priority to CN 200710040484 priority Critical patent/CN101049761A/en
Publication of CN101049761A publication Critical patent/CN101049761A/en

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Abstract

A method for cleaning the print head of the piezoelectric ink-jet printer includes such steps as setting up the frequency of cleaning pulses, applying cleaning pulses to the print head to cause the deformation of piezoelectric ceramics and the resonance of particles or fibers for loosening or dropping off, and flushing with cleaning liquid or sucking. Its apparatus is composed of low-frequency resonance system, flushing system, and negative pressure generating system.

Description

A kind of printhead cleaning method and device of piezoelectric ink jet printer

Technical field

The invention belongs to the inkjet technology field, be specifically related to a kind of shower nozzle cleaning method and device of piezoelectric ink jet printer.

Background technology

Inkjet printing (ink-jet printing, IJP) be the digital printed technology of a kind of non-impact type that people are familiar with, specifically be under the driving of print signal, the ink droplet that shower nozzle produces is directly injected to the ad-hoc location of dielectric surface through the aperture of nozzle, realizes the printing of character and figure.Inkjet printing is having outstanding advantage aspect fine droplet generation and the location, simultaneously, and advantages such as process is simple, stock utilization is high, cost is low, environmental protection that it also has.In recent years, researchers are devoted to the inkjet printing Application and Development specifically to comprise in various fields such as electronics, machinery, material, biology and the energy: microelectronics welding, micromechanics position are lubricated, the optical filter of LCD, biochip, organic field effect tube, polymer electroluminescent device, solar cell etc.

Want to realize the accurate deposition of material, critical component is an ink jet-print head.Ink jet-print head (structure, jet size etc.) influences whole ink jet process, comprise size, the quality of fine droplet, and these is determining the actual print resolution and the printing effect of system.The inkjet printing area of bed is little, the internal mechanism complexity, and particle is easy to stop up printhead or attached on the printhead tube wall, can reduces the printed dot quality like this in the ink, is difficult to realize accurate printing.

Therefore, the cleaning of printhead is extremely important.Traditional cleaning method, the general employing exerted pressure, and washes repeatedly with solvent.Perhaps make a pressure reduction, allow solvent enter shower nozzle, flow out from the shower nozzle afterbody, so in the other direction flushing from jet hole at the shower nozzle two ends.These two kinds of methods can produce effect for impurity particle and the fiber that loosely accumulates in the print-head nozzle, and for more closely attached to particle on the printhead tube wall or fiber, then be difficult to they are cleaned out shower nozzle.

Summary of the invention

In order to solve the problem that is difficult to clean attached to particle or fiber on the printhead tube wall in the ink-jet print system shower nozzle, the invention provides the method and apparatus that a kind of new ink-jet print system shower nozzle cleans.This method can effectively be cleaned out size particles and the fiber that the shower nozzle tube wall adheres to.

Technical solution of the present invention is, at impurity such as tamper particle or fibers, pulse frequency is set, and applies pulse voltage to printhead, and the printhead piezoelectric ceramics is vibrated, and impels tamper to produce resonance, thereby makes tamper loosening or come off from tube wall.By the flushing or the suck-back of cleaning fluid, make tamper discharge in the nozzle simultaneously.

Among the present invention, the pulse repetition frequency that applies can be 5Hz-150Hz, and the time is 30 seconds-2 minutes, can select according to the characteristics of concrete tamper.

The inventive method is applicable to the cleaning of the various shower nozzles of various piezoelectric ink jet print systems.

Corresponding to above-mentioned cleaning method, the present invention has designed cleaning device, and its structure as shown in Figure 1.It produces system 5 by the container 1 that holds cleaning fluid, low-frequency pulse resonator system 3, rinse-system 4 and negative pressure and connects to form through pipeline; Printhead 2 to be cleaned is installed on the low-frequency pulse resonator system 3.Rinse-system 4 is one to hold the container of cleaning fluid, is connected with house steward 8 by pipeline, and pipeline is provided with switch valve S1; Negative pressure produces system 5 to be made up of vavuum pump 7 and the container 9 that holds cleaning fluid, and vavuum pump 7 is communicated with container 9 by pipeline, sets gradually controlled valve S3 and converting interface 6 on the pipeline; Container 9 is communicated with printhead on the low-frequency pulse resonator system 3 by house steward 8, and controlled valve S2 is set.

During cleaning cleaning solvent is positioned in container 1 and the rinse-system 4; below the cleaning solution liquid level in the nozzle immersion container 1 of piezoelectric ink jet printing head 2; by pulse resonance system 3; apply pulse; printhead is vibrated; so that produce resonance with stopping up attaching particles or fiber, impel attaching particles or fibre shedding.While valve-off S2, S3, Open valve S1 makes under the wash liquid stream of rinse-system 4, by house steward 8, the flushing printhead; Perhaps valve-off S1, Open valve S2 and S3 utilize negative pressure to produce system 5, make the printhead two ends produce negative pressure, the cleaning fluid suck-back are refluxed the flushing printhead.Also can be after applying pulse a period of time by pulse resonance system 3, re-use rinse-system 4 flushings, perhaps use negative pressure to produce system 5 flushing that refluxes.

In the said method, rinse-system 4 is the working pressure device not, and cleaning fluid falls to washing under the gravity effect, also can the working pressure device be exerted pressure by cleaning fluid, strengthens cleaning fluid whereabouts impulse force.

Description of drawings

Fig. 1 is the structure principle chart of apparatus of the present invention.

Number in the figure: Fig. 1 is the container that holds cleaning fluid, the 2nd, and ink jet-print head, 3 low-frequency pulse resonator systems, the 4th, rinse-system, the 5th, negative pressure produces system, and 6 is converting interface, and 7 is vavuum pump, 8 is house steward, and 9 is the container in the negative pressure generation system, and S1, S2, S3 are controlled valve.

The specific embodiment

Further illustrate below, but be not limited to embodiment.

Embodiment 1

The ink-jet print system printhead diameter that uses in the present embodiment is 50 μ m.The ink jet-print head tube wall is adhered to obstruction by big fiber, and printhead is taken off from print system, connects in the device shown in Figure 1, cleaning solvent adopts isopropyl alcohol, by pulse resonance system 3, applies frequency and be pulse voltage 1-2 minute of 10Hz, printhead is vibrated, so that produce resonance with stopping up attachment fiber, while valve-off S1, Open valve S2, S3 utilizes negative pressure to produce system 5, makes the printhead two ends produce negative pressure, the cleaning fluid suck-back refluxes, flushing printhead in vibration.Loosening attached to the big fiber on the printhead tube wall, come off, flow out printhead with the backflow cleaning fluid then.Repeat after 2-3 time, again print head cartridge on print system, on monitor, observe, shower nozzle inside cleans up, and can normally use.

Embodiment 2

The ink-jet print system printhead diameter that uses in the present embodiment is 50 μ m.The ink jet-print head tube wall is adhered to than granule, and the printhead pipeline has obstacle, prints deflection.Printhead is taken off from print system, connect in the device shown in Figure 1, cleaning solvent adopts ethanol, by pulse resonance system 3, applies frequency and be the pulse 40 seconds-1 minute of 100Hz, printhead is vibrated, so that produce resonance with attaching particles, while valve-off S2 and S3, Open valve S1, cleaning fluid is flowed down, flushing printhead in vibration from rinse-system 4.Little particle detachment attached on the printhead tube wall flows out printhead with cleaning fluid from nozzle then.Repeat after 3-4 time, again print head cartridge on print system, on monitor, observe, shower nozzle inside cleans up, and can normally use.

Claims (3)

1, a kind of cleaning method of piezoelectric ink jet printer port of printer, it is characterized in that the cleaning pulse frequency being set at tamper in the printhead, apply pulse voltage to printhead, the printhead piezoelectric ceramics is vibrated, impel tamper to produce resonance, thereby make stifled cold thing loosening or come off from tube wall; By the flushing or the suck-back of cleaning fluid, make tamper discharge in the print-head nozzle simultaneously.
2, the cleaning method of piezoelectric ink jet printer port of printer according to claim 1, the frequency that it is characterized in that applying pulse voltage is 5-150Hz, the time is 30 seconds-2 minutes.
3, the cleaning device of piezoelectric ink jet printer port of printer according to claim 1 is characterized in that it produces system (5) by the container that holds cleaning fluid (1), low-frequency pulse resonator system (3), rinse-system (4) and negative pressure and connects to form through pipeline; Printhead to be cleaned (2) is installed on the low-frequency pulse resonator system (3).Rinse-system (4) is one to hold the container of cleaning fluid, is connected with house steward (8) by pipeline, and pipeline is provided with switch valve (S1); Negative pressure produces system (5) to be made up of vavuum pump (7) and the container (9) that holds cleaning fluid, and vavuum pump (7) is communicated with container (9) by pipeline, sets gradually controlled valve (S3) and converting interface (6) on the pipeline; Container (9) is communicated with printhead on the low-frequency pulse resonator system (3) by house steward (8), and controlled valve (S2) is set.
CN 200710040484 2007-05-10 2007-05-10 Method and device for cleaning out printing head of piezoelectric type ink jet printer CN101049761A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
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Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 200710040484 CN101049761A (en) 2007-05-10 2007-05-10 Method and device for cleaning out printing head of piezoelectric type ink jet printer

Publications (1)

Publication Number Publication Date
CN101049761A true CN101049761A (en) 2007-10-10

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Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101982316A (en) * 2010-08-20 2011-03-02 北京联创佳艺影像新材料技术有限公司 Method and special cleaning solutions for cleaning thermal-bubble ink-jet printer jet head
CN102310647A (en) * 2010-06-30 2012-01-11 北大方正集团有限公司 Device and method for cleaning spray head
CN102442068A (en) * 2010-09-30 2012-05-09 北大方正集团有限公司 Spray head cleaning device and working method thereof
CN102529384A (en) * 2010-11-29 2012-07-04 精工爱普生株式会社 Cleaning method, cleaning apparatus, and liquid ejecting apparatus
CN102975493A (en) * 2011-09-06 2013-03-20 株式会社岛精机制作所 A spray nozzle cleaning method for an ink jet printing system and the ink jet printing system
CN103144436A (en) * 2011-12-06 2013-06-12 北大方正集团有限公司 Shower nozzle washing device and washing method
CN103302995A (en) * 2012-03-12 2013-09-18 东芝泰格有限公司 Image forming device
CN103448368A (en) * 2013-01-02 2013-12-18 珠海天威飞马打印耗材有限公司 Printing head cleaning device and cleaning method
WO2014079078A1 (en) * 2012-11-22 2014-05-30 深圳市华星光电技术有限公司 Method and device for cleaning jet head of alignment film printer
CN104553329A (en) * 2013-10-10 2015-04-29 北大方正集团有限公司 Ink jet head cleaning device
CN105848906A (en) * 2013-09-25 2016-08-10 唐杰有限公司 Ink supply method and ink supply device
CN106595793A (en) * 2016-12-09 2017-04-26 浙江科技学院 Ultrasonic water meter reflective surface self-cleaning method based on state monitoring
CN109895505A (en) * 2019-03-29 2019-06-18 华中科技大学 A kind of anticlogging EFI print spray nozzle device of ultrasound and method

Cited By (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102310647B (en) * 2010-06-30 2014-02-12 北大方正集团有限公司 Device and method for cleaning spray head
CN102310647A (en) * 2010-06-30 2012-01-11 北大方正集团有限公司 Device and method for cleaning spray head
CN101982316B (en) * 2010-08-20 2012-02-08 北京联创佳艺影像新材料技术有限公司 Method and special cleaning solutions for cleaning thermal-bubble ink-jet printer jet head
CN101982316A (en) * 2010-08-20 2011-03-02 北京联创佳艺影像新材料技术有限公司 Method and special cleaning solutions for cleaning thermal-bubble ink-jet printer jet head
CN102442068A (en) * 2010-09-30 2012-05-09 北大方正集团有限公司 Spray head cleaning device and working method thereof
CN102442068B (en) * 2010-09-30 2014-12-10 北大方正集团有限公司 Spray head cleaning device and working method thereof
CN102529384B (en) * 2010-11-29 2016-04-06 精工爱普生株式会社 Cleaning method, cleaning device and liquid injection apparatus
CN102529384A (en) * 2010-11-29 2012-07-04 精工爱普生株式会社 Cleaning method, cleaning apparatus, and liquid ejecting apparatus
CN102975493A (en) * 2011-09-06 2013-03-20 株式会社岛精机制作所 A spray nozzle cleaning method for an ink jet printing system and the ink jet printing system
CN102975493B (en) * 2011-09-06 2015-10-28 株式会社岛精机制作所 The nozzle cleaning method of ink-jet printing system and ink-jet printing system
CN103144436B (en) * 2011-12-06 2015-04-01 北大方正集团有限公司 Shower nozzle washing device and washing method
CN103144436A (en) * 2011-12-06 2013-06-12 北大方正集团有限公司 Shower nozzle washing device and washing method
CN103302995B (en) * 2012-03-12 2016-01-20 东芝泰格有限公司 Image processing system
CN103302995A (en) * 2012-03-12 2013-09-18 东芝泰格有限公司 Image forming device
WO2014079078A1 (en) * 2012-11-22 2014-05-30 深圳市华星光电技术有限公司 Method and device for cleaning jet head of alignment film printer
CN103448368A (en) * 2013-01-02 2013-12-18 珠海天威飞马打印耗材有限公司 Printing head cleaning device and cleaning method
CN103448368B (en) * 2013-01-02 2015-09-02 珠海天威飞马打印耗材有限公司 print head cleaning device and cleaning method
CN105848906A (en) * 2013-09-25 2016-08-10 唐杰有限公司 Ink supply method and ink supply device
CN104553329A (en) * 2013-10-10 2015-04-29 北大方正集团有限公司 Ink jet head cleaning device
CN104553329B (en) * 2013-10-10 2016-06-08 北大方正集团有限公司 Spray head cleaning device
CN106595793A (en) * 2016-12-09 2017-04-26 浙江科技学院 Ultrasonic water meter reflective surface self-cleaning method based on state monitoring
CN106595793B (en) * 2016-12-09 2019-04-05 浙江科技学院 A kind of ultrasonic water gauge table reflecting surface self cleaning method based on status monitoring
CN109895505A (en) * 2019-03-29 2019-06-18 华中科技大学 A kind of anticlogging EFI print spray nozzle device of ultrasound and method

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