CN1631675A - Real time automatic cleaning method and apparatus for ink-jet head of digital ink-jet printer - Google Patents
Real time automatic cleaning method and apparatus for ink-jet head of digital ink-jet printer Download PDFInfo
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- CN1631675A CN1631675A CN 200310122891 CN200310122891A CN1631675A CN 1631675 A CN1631675 A CN 1631675A CN 200310122891 CN200310122891 CN 200310122891 CN 200310122891 A CN200310122891 A CN 200310122891A CN 1631675 A CN1631675 A CN 1631675A
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Abstract
The invention relates to a real-time cleaning method of the blowing head of digital blowing drawing machine using dissolvent ink, and its device. The method includes following steps: a. hangs on the printing operation and shift the blowing head out of printing area when the digital blowing drawing machine is in service; b.. force the inks to flow out from the blowing head for a time with compressed air so to clean the blowing head; c. wait for a time after the cleaning is finished and then shift the blowing head back to the printing area to go back for the printing operation. The compressed air is generated by an air pump and transferred though the main air channel then to each branch air channels and into ink bottles of different color which connected to each blowing head through ink pouring tubes dipped to the bottom of the bottles. The main air channel is set with a valve. So the invention has a rational steps, high automation, remarkable cleaning effect, fine stability, simple device structure and rational tube arrangement which acquires the real-time cleaning handily and lengthen the service life of the blowing head.
Description
Technical field
The present invention relates to a kind of shower nozzle cleaning method and device of digit inkjet printer, especially relate to a kind of real-time auto-cleaning method of shower nozzle and device that uses the digit inkjet printer of solvent-based inks.
Background technology
Ink-jet printer forms print pattern with versicolor ink droplet jet by shower nozzle to print media.Because what it adopted is the bigger solvent-based inks of volatility, ink is easy to drying, cohesion, caking on spout, ink can not successfully be sprayed from spout, thereby have a strong impact on print quality.In addition, owing to contain micro-impurity, bubble etc. in the ink, long-time continuous just might result in blockage to the nozzle of shower nozzle when using; If untimely cleaning will cause the ink-jet track of nozzle to change, phenomenons such as producing skew, atomize even can't spray.
In order to meet high-quality printing requirement, at the characteristics of the printer that uses solvent-based inks, people have carried out long-term exploration, have proposed various solutions.For example, the method and apparatus of a kind of cleaning printer nozzle that Chinese patent literature is announced and the printhead and the printer (application number: 01138467.0) of institute's combination, it is characterized in that a fixing cleaning spout being installed at the downstream part of nozzle, and deflecting nozzle one side, when ink stops to spray, by the solvent of this cleaning spout sprinkling specified rate, it is impulse nozzle at a certain angle.The cleaning and the front surface of flooding nozzle then, dry up dry compressed air by the cleaning spout to nozzle in this way, so that the front surface of dry nozzle and make the ink residue deposit to shell side.Though adopt this mode to improve the jeting effect of shower nozzle, its structure is quite complicated, cost is high, automaticity is not high, step is also more loaded down with trivial details.
The somebody adopts pure manual cleaning and maintenance method, intermittently aim at shower nozzle in the work of printer and carry out pumping ink with vacuum or negative pressure device such as high power vacuum cleaner, make and mend new ink in the shower nozzle, the instantaneous impact that utilizes ink to produce will be blocked in the impurity or the bubble of shower nozzle and go out, thus the mediation shower nozzle.This method has been improved the printing effect of shower nozzle to a certain extent, but the shortcoming that exists is also a lot.Effect poor as automaticity, that operate inconvenience, clean and maintain is also not satisfactory.Owing to adopt artificial mode, the time span of operation and interval only depend on individual's experiential operating, are difficult to effective control.
Summary of the invention
The present invention mainly is that to have solved the automaticity that exists in the prior art low, and the cleaning operation time is difficult to reasonable control, the technical problem of structure more complicated etc.And then, provide a kind of easy to operate, simple in structure, the spray head cleaning device of the digit inkjet printer that automaticity is high.
The present invention also solved the digit inkjet printer that exists in the prior art the shower nozzle cleaning method and the device very unreasonable, stability is not high, the technical problem of cleaning performance difference etc.Especially solved the technical problem that can't realize automatic real-time operation that exists in the prior art.
Technical scheme of the present invention comprises the following steps:
A, in the digit inkjet printer use, interrupt printing, shower nozzle is shifted out print area;
B, be power, force printing ink to be gushed out a period of time, carry out shower nozzle and clean from shower nozzle with compressed air;
C, shower nozzle wait for a period of time after cleaning and finishing, and again shower nozzle are moved back to print area, print operation again.
As preferably, described compressed air adopts dedicated pump as power, and compressed air acts on ink supply bottle of all kinds simultaneously by gas circuit, makes each chromatic ink in it inject corresponding shower nozzle respectively, promptly by the power of air as ink.In order to guarantee the quality of ink, compressed air is for the cleaned air through filtering, to prevent dust, contaminating impurity ink wherein.
As preferably, the mutual switching of automatic cleaning process of shower nozzle and print procedure is controlled by computer; The length of shower nozzle scavenging period and cleaning back stand-by period is controlled by computer.Switching time of cleaning in the print procedure and each the cleaning time that wait for the back also can be realized by manual mode.But manual mode complicated operating process, cleaning performance also are difficult to guarantee less stable.The control of employing computer not only improved stability, and automaticity significantly improves.
As preferably, described compressed-air actuated pressure is with 0.05～0.5Kg/cm
2Be advisable.
As preferably, time remaining 1s～5s that described pressure printing ink is gushed out from shower nozzle; Described shower nozzle is waited for 10s～20s after cleaning and finishing.Because after shower nozzle had sprayed ink, the shower nozzle mouth exists hung a phenomenon, if print operation after having cleaned, the ink droplet that hangs over the shower nozzle mouth may pollute print media, and also can exert an influence to the depth of color at once.
For realizing shower nozzle cleaning method of the present invention, can adopt various devices or system.For example, compressed air of the present invention is produced by air pump, enters ink supply bottle of all kinds by defeated respectively after the main gas circuit through each gas circuit, is linked to each other with each shower nozzle by the refilling pipeline that inserts the nearly bottom of each ink supply bottle; Described main gas circuit is provided with valve body.
Main gas circuit and each gas circuit can realize being connected by variety of way, and as preferably, described main gas circuit links to each other with each gas circuit respectively through several triple valves.The triple valve here can be made as T type or Y type.
Can also adopt another mode to realize being connected of main gas circuit and each gas circuit.Be provided with a cushion chamber on main gas circuit, described cushion chamber links to each other with each gas circuit; Cushion chamber is provided with an air intlet and the air outlet slit that links to each other with a gas circuit.When adopting this mode, the effect of the main gas circuit of the existing connection of cushion chamber and each gas circuit simultaneously can uneven situation produces so that the pressure of the air-flow of each branch road about equally, prevents the pressure of each shower nozzle.
As preferably, described valve body is a triple valve, and by relay control, the one pin directly links to each other with the external world.The relay is here controlled its work by computer.The pin that links to each other with the external world can play the effect of adjusting the ink supply pressure of the inside of a bottle.When entering the cleaning state, the valve closure at the pin place that triple valve links to each other with the external world, the valve of main gas circuit is unimpeded, makes that the air pressure in the ink supply bottle increases; After cleaning finished, the valve at the pin place that triple valve links to each other with the external world was opened, and the valve closure of main gas circuit makes the ink supply bottle be returned to atmospheric pressure.
As preferably, the plane, nozzle place of described shower nozzle is higher than the liquid level of ink supply bottle ink inside.Because liquid level has a difference in height in the liquid level of nozzle and the ink supply bottle, when the pressure in the ink supply bottle was in atmospheric pressure, the extension on nozzle drips will be sucked back, thereby guarantee printing effect.
As preferably, described print job district one side is provided with a storage print cartridge, and the moving track of described shower nozzle extends to its top.The storage print cartridge can be with the ink collection that extrudes.
Therefore, it is reasonable that method of the present invention has step, and the automaticity height is easy to operate, and is obvious to the cleaning performance of shower nozzle, characteristics such as better working stability; Device of the present invention has simple in structure, and pipe-line layout is reasonable, and pressure is even, can realize real-time cleaning easily, has improved printing effect; Especially can prolong the service life of shower nozzle greatly.
Description of drawings
Accompanying drawing 1 is a kind of cleaning device theory structure schematic diagram of the present invention;
Accompanying drawing 2 is an another kind of cleaning device theory structure schematic diagram of the present invention.
The specific embodiment
Below by embodiment, technical scheme of the present invention is described in further detail.
Embodiment 1: as Fig. 1, the ink in the main China ink bottle of all kinds injects this chromatic ink ink supply bottle 4 of all kinds on demand through fluid discharge pump and ink filter device.The compressed air of cleaning device of the present invention is produced by air pump 1, inject main gas circuit 2 through filtering the back, after being located at the valve body 7 on the main gas circuit 2, air-flow links to each other with each gas circuit 3 respectively through several triple valves 8, enter ink supply bottle 4 of all kinds then, link to each other with each shower nozzle 6 by the refilling pipeline 5 that inserts each ink supply bottle 4 nearly bottoms.This valve body 7 is a triple valve, and by relay control, the one pin directly links to each other with the external world.The plane, nozzle place of described shower nozzle 6 is higher than the liquid level of ink supply bottle 4 ink inside.Described print job district one side is provided with a storage print cartridge, and the moving track of described shower nozzle 6 extends to its top.
During work, in print procedure, send instruction, interrupt printing, shower nozzle 6 is shifted out print area to storing up the print cartridge top by computer, this moment the pin place that triple valve 8 links to each other with the external world the valve closure, the valve of main gas circuit 2 is unimpeded.This moment, air pump 1 work was power with the compressed air that cleans, and forced printing ink to be gushed out a period of time from shower nozzle 6, continued for 4 seconds, carried out shower nozzle and cleaned.After shower nozzle cleaned and finishes, the valve at the pin place that triple valve links to each other with the external world was opened, and the valve closure of main gas circuit makes the ink supply bottle be returned to atmospheric pressure, waits for for 15 seconds, again shower nozzle is moved back to print area, prints operation again.Repeat above-mentioned super work after printing a period of time.
Embodiment 2: as Fig. 2, the main gas circuit here is not to link to each other with each gas circuit by three-way pipe, but is provided with a cushion chamber 9 on main gas circuit 2, and described cushion chamber 9 links to each other with each gas circuit; Described cushion chamber 9 is provided with an air intlet 10 and the air outlet slit 11 that links to each other with a gas circuit 3.All the other are all identical with embodiment 1, just repeat no more here.
Claims (13)
1. the real-time auto-cleaning method of the shower nozzle of a digit inkjet printer is characterized in that it is made of the following step:
A, in the digit inkjet printer use, interrupt printing, shower nozzle is shifted out print area;
B, be power, force printing ink to be gushed out a period of time, carry out shower nozzle and clean from shower nozzle with compressed air;
C, shower nozzle wait for a period of time after cleaning and finishing, and again shower nozzle are moved back to print area, print operation again.
2. the real-time auto-cleaning method of the shower nozzle of digit inkjet printer according to claim 1, it is characterized in that described compressed air adopts dedicated pump as power, compressed air acts on ink supply bottle of all kinds simultaneously by gas circuit, makes each chromatic ink in it inject corresponding shower nozzle respectively.
3. the real-time auto-cleaning method of the shower nozzle of digit inkjet printer according to claim 1 is characterized in that the mutual switching of automatic cleaning process of shower nozzle and print procedure is controlled by computer; The length of shower nozzle scavenging period and cleaning back stand-by period is controlled by computer.
4. according to the real-time auto-cleaning method of shower nozzle of claim 1 or 2 or 3 described digit inkjet printers, it is characterized in that described compressed-air actuated pressure is 0.05～0.5Kg/cm
2
5. according to the real-time auto-cleaning method of shower nozzle of claim 1 or 2 or 3 described digit inkjet printers, it is characterized in that time remaining 1s～5s that described pressure printing ink is gushed out from shower nozzle; Described shower nozzle is waited for 10s～20s after cleaning and finishing.
6. the real-time auto-cleaning method of the shower nozzle of digit inkjet printer according to claim 4 is characterized in that time remaining 1s～5s that described pressure printing ink is gushed out from shower nozzle; Described shower nozzle is waited for 10s～20s after cleaning and finishing.
7. the real-time automatic flushing device of the shower nozzle of a digit inkjet printer, it is characterized in that described compressed air is produced by air pump (1), enter ink supply bottle of all kinds (4) by defeated respectively after the main gas circuit (2) through each gas circuit (3), link to each other with each shower nozzle (6) by the refilling pipeline (5) that inserts the nearly bottom of each ink supply bottle (4); Described main gas circuit (2) is provided with valve body (7).
8. the real-time automatic flushing device of the shower nozzle of digit inkjet printer according to claim 7 is characterized in that described main gas circuit (2) links to each other with each gas circuit (3) respectively through several triple valves (8).
9. the real-time automatic flushing device of the shower nozzle of digit inkjet printer according to claim 7 is characterized in that described main gas circuit (2) is provided with a cushion chamber (9), and described cushion chamber (9) links to each other with each gas circuit; Described cushion chamber (9) is provided with an air intlet (10) and the air outlet slit (11) that links to each other with a gas circuit (3).
10. according to the real-time automatic flushing device of shower nozzle of claim 7 or 8 or 9 described digit inkjet printers, it is characterized in that described valve body (7) is a triple valve, by relay control, the one pin directly links to each other with the external world.
11., it is characterized in that the plane, nozzle place of described shower nozzle (6) is higher than the liquid level of ink supply bottle (4) ink inside according to the real-time automatic flushing device of shower nozzle of claim 7 or 8 or 9 described digit inkjet printers.
12. the real-time automatic flushing device of the shower nozzle of digit inkjet printer according to claim 10 is characterized in that the plane, nozzle place of described shower nozzle (6) is higher than the liquid level of ink supply bottle (4) ink inside.
13. according to the real-time automatic flushing device of shower nozzle of claim 7 or 8 or 9 or 12 described digit inkjet printers, it is characterized in that described print job district one side is provided with a storage print cartridge, the moving track of described shower nozzle (6) extends to its top.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB200310122891XA CN100395112C (en) | 2003-12-24 | 2003-12-24 | Real time automatic cleaning method and apparatus for ink-jet head of digital ink-jet printer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB200310122891XA CN100395112C (en) | 2003-12-24 | 2003-12-24 | Real time automatic cleaning method and apparatus for ink-jet head of digital ink-jet printer |
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| Publication Number | Publication Date |
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| CN1631675A true CN1631675A (en) | 2005-06-29 |
| CN100395112C CN100395112C (en) | 2008-06-18 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNB200310122891XA Expired - Fee Related CN100395112C (en) | 2003-12-24 | 2003-12-24 | Real time automatic cleaning method and apparatus for ink-jet head of digital ink-jet printer |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102261489A (en) * | 2010-05-24 | 2011-11-30 | 浙江工正科技发展有限公司 | Solvent-resistant three-way valve device with open and close functions |
| CN102991133A (en) * | 2012-12-10 | 2013-03-27 | 珠海天威飞马打印耗材有限公司 | Wide-line printer and cleaning method |
| WO2013083005A1 (en) * | 2011-12-09 | 2013-06-13 | 珠海天威飞马打印耗材有限公司 | Method and device for cleaning inkjet head of inkjet printer |
| CN109910438A (en) * | 2019-03-31 | 2019-06-21 | 严志滨 | It is a kind of to generate the inkjet print head that scouring effect prevents from blocking based on liquid displacement |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5489925A (en) * | 1993-05-04 | 1996-02-06 | Markem Corporation | Ink jet printing system |
| JPH09226144A (en) * | 1996-02-23 | 1997-09-02 | Hitachi Koki Co Ltd | Ink jet printer and purging method thereof |
| DK1162071T3 (en) * | 2000-06-08 | 2007-03-19 | Illinois Tool Works | Purification of a liquid jet device |
| JP2002127468A (en) * | 2000-10-24 | 2002-05-08 | Toppan Forms Co Ltd | Cleaning system of ink jet printer |
| US20030016264A1 (en) * | 2001-07-16 | 2003-01-23 | Eastman Kodak Company | Continuous ink-jet printing apparatus with integral cleaning |
| CN2521043Y (en) * | 2002-01-23 | 2002-11-20 | 佛山市科菱数码图像设备有限公司 | Automatic cleaning mechanism for printing head of ink-jet plotter |
-
2003
- 2003-12-24 CN CNB200310122891XA patent/CN100395112C/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102261489A (en) * | 2010-05-24 | 2011-11-30 | 浙江工正科技发展有限公司 | Solvent-resistant three-way valve device with open and close functions |
| WO2013083005A1 (en) * | 2011-12-09 | 2013-06-13 | 珠海天威飞马打印耗材有限公司 | Method and device for cleaning inkjet head of inkjet printer |
| CN102991133A (en) * | 2012-12-10 | 2013-03-27 | 珠海天威飞马打印耗材有限公司 | Wide-line printer and cleaning method |
| CN102991133B (en) * | 2012-12-10 | 2015-08-12 | 珠海天威飞马打印耗材有限公司 | Line-at-a-time printer and cleaning method |
| CN109910438A (en) * | 2019-03-31 | 2019-06-21 | 严志滨 | It is a kind of to generate the inkjet print head that scouring effect prevents from blocking based on liquid displacement |
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| Publication number | Publication date |
|---|---|
| CN100395112C (en) | 2008-06-18 |
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Granted publication date: 20080618 Termination date: 20131224 |