CN102442077A - System and method for negative-pressure ink supply of rigid printed circuit board jet printing - Google Patents
System and method for negative-pressure ink supply of rigid printed circuit board jet printing Download PDFInfo
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- CN102442077A CN102442077A CN2011103076348A CN201110307634A CN102442077A CN 102442077 A CN102442077 A CN 102442077A CN 2011103076348 A CN2011103076348 A CN 2011103076348A CN 201110307634 A CN201110307634 A CN 201110307634A CN 102442077 A CN102442077 A CN 102442077A
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Abstract
The invention provides a system and method for negative-pressure ink supply of rigid printed circuit board jet printing equipment. The system comprises a vacuum pump, a vacuum generator, an ink box, a spray head, an ink bottle and an ink supply pump, wherein the vacuum pump is connected with the vacuum generator; the vacuum generator is connected with the ink box; the ink box is connected with the spray head; the spray head is positioned below the ink box; the ink supply pump is connected with the ink box; and the ink bottle is connected with the ink supply pump. In the method, negative-pressure interaction is generated in the ink box through the pressure generated by ink level in the ink box and the vacuum generator, and then a working negative pressure is formed at the spray head so as to realize stable ink supply. Compared with a negative-pressure ink supply system of conventional rigid printed circuit board jet printing equipment, the technical scheme provided by the invention has the characteristics of short ink path, high ink supply stability and the like.
Description
Technical field
The present invention relates to rigid printed circuit boards spray printing equipment, be specifically related to be used for a kind of negative pressure ink supply system and method for rigid printed circuit boards spray printing equipment.
Background technology
Rigid printed circuit boards spray printing equipment belongs to a kind of ink-jet system, and in ink-jet system, ink feeding system is a key technology, and the size of the negative pressure that it provides and stability will directly influence the quality of system's ink-jet.
Existing rigid printed circuit boards spray printing ink supply mode is a liquid level difference siphon ink supply mode, and the print cartridge height is lower than sprinkler height, utilizes the ink negative pressure hold mode at the liquid level difference formation shower nozzle place between shower nozzle and the print cartridge.
Present subject matter: the ink pressure in 1 ink feeding system is in the atmospheric pressure atmospheric pressure state, can't load pipeline vacuum degassing device, makes interior being prone to of pipeline form bubble, causes the ink negative pressure maintenance at shower nozzle place unstable, and it is stable to influence ink supply; 2 because of this ink supply mode principle limits, and the print cartridge installation site will be lower than nozzle position perpendicular to the horizontal plane direction, so, must print cartridge be installed on beyond the spray printing machine worktable range of movement, cause the China ink pipe long, the ink supply damping strengthens, and influences ink supply stability.
Summary of the invention
The invention provides a kind of negative pressure ink supply system and method, overcome the easy bubble that forms of pipeline in traditional ink supply method, the problem that the shower nozzle negative pressure is unstable.
The present invention realizes through following technical scheme.
A kind of negative pressure ink supply of the present invention system comprises vavuum pump, vacuum generator, print cartridge, shower nozzle, ink supply pump and ink bottle;
Said print cartridge comprises box body, blow vent, ink outlet port, ink supply port and switch; Said blow vent is positioned at said box body top, and said ink outlet port is positioned at said box body bottom, and said ink supply port is positioned at said box body middle part; Remain basically stable with required liquid level, said switch is arranged in the box body;
The air entry of said vavuum pump communicates with air; The exhaust outlet of vavuum pump links to each other with the air supply opening of said vacuum generator; The vacuum port of said vacuum generator links to each other with said blow vent, and said ink outlet port links to each other with said shower nozzle, and said shower nozzle is positioned at said print cartridge below; Said ink supply delivery side of pump links to each other with said ink supply port, and said ink bottle links to each other with the inlet of said ink supply pump;
Said print cartridge seals;
More than device connects through pipeline.
A kind of negative pressure ink supply method of the present invention may further comprise the steps:
Start the ink supply pump to the head cartridge ink supply, the switch control ink supply pump in the head cartridge makes the interior ink level of head cartridge stable;
The ink of spray nozzle liquid level difference of ink in the head cartridge is stabilized in H, and required vacuum is P in the head cartridge, and P=-0.01H;
Start vavuum pump and vacuum generator, adjusting vavuum pump operating current makes and reaches required vacuum in the head cartridge;
Shower nozzle driving work, the stable ejection of ink;
Said liquid level difference H is selected from 60～400mm, and preferred 200～300mm, corresponding vacuum P be selected from-0.6～-4kPa, preferred-2～-3kPa;
The ink flow rate of said ink supply pump is selected from 300～450ml/min.
A kind of negative pressure ink supply system and method provided by the invention, the vacuum of utilizing ink self gravitation and vacuum generator to produce is kept shower nozzle place negative pressure state, guarantees the stable negative pressure at shower nozzle place through the control of ink level in the head cartridge and vacuum.Compare characteristics such as having black short out, ink supply stability height with traditional negative pressure ink supply system.
Description of drawings
Fig. 1 is the structural representation of a kind of negative pressure ink supply of the present invention system.
The specific embodiment
As shown in Figure 1, negative pressure ink supply of the present invention system comprises vavuum pump 1, vacuum generator 2, print cartridge 3, shower nozzle 4, ink bottle 5, ink supply pump 6 and filter 7;
Said print cartridge 3 comprises box body 31, blow vent 32, ink outlet port 33, ink supply port 34 and switch 35; Said blow vent 32 is positioned at said box body 31 tops; Said ink outlet port 33 is positioned at said box body 31 bottoms; Said ink supply port 34 is positioned at said box body 31 middle parts, remains basically stable with required liquid level, and said switch 35 is arranged in the box body 31;
The air entry of said vavuum pump 1 communicates with air; The exhaust outlet of said vavuum pump 1 links to each other with the air supply opening of said vacuum generator 2, and the vacuum port of said vacuum generator 2 links to each other with said blow vent 32, and said ink outlet port 33 links to each other with said shower nozzle 4; Said shower nozzle 4 is positioned at said print cartridge 3 belows; Said ink supply port 34 links to each other with said filter 7, and said filter 7 links to each other with said ink supply pump 5 outlets, and said ink bottle 6 links to each other with said ink supply pump 5 inlets;
Said print cartridge 3 seals;
More than device connects through pipeline.
According to the foregoing description, negative pressure ink supply method of the present invention may further comprise the steps:
Start the ink supply pump to the print cartridge ink supply, the switch control ink supply pump in the print cartridge makes the interior ink level of print cartridge stable;
The ink of shower nozzle liquid level difference of ink in the print cartridge is stabilized in 300, and required vacuum is-3kPa in the head cartridge;
Start vavuum pump and vacuum generator, adjusting vavuum pump operating current makes in the head cartridge and reaches-3kPa; Shower nozzle driving work, the stable ejection of ink;
The ink flow rate of said ink supply pump is 350ml/min;
Said vavuum pump is selected from maximum functional vacuum-26.7kPa, maximum operating currenbt 0.5A.
The above; Be merely the specific embodiment of the present invention, but protection scope of the present invention is not limited thereto, any technical staff who is familiar with the present technique field is in the technical scope that the utility model discloses; Can expect easily changing or replacement, all should be encompassed within protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with the protection domain of claim.
Claims (6)
1. a negative pressure ink supply system is characterized in that comprising vavuum pump (1), vacuum generator (2), print cartridge (3), shower nozzle (4), ink supply pump (5) and ink bottle (6);
The air entry of said vavuum pump (1) communicates with air; The exhaust outlet of said vavuum pump (1) links to each other with the air supply opening of said vacuum generator (2); The vacuum port of said vacuum generator (2) links to each other with said print cartridge (3), and said shower nozzle (4) links to each other with said print cartridge (3), and said shower nozzle (4) is positioned at said print cartridge (3) below; The outlet of said ink supply pump (5) links to each other with said print cartridge (3), and said ink bottle (6) links to each other with the inlet of said ink supply pump (5);
Said print cartridge (3) seals;
More than device connects through pipeline.
2. a kind of negative pressure ink supply according to claim 1 system; It is characterized in that said print cartridge (3) comprises box body (31), blow vent (32), ink outlet port (33), ink supply port (34) and switch (35); Said blow vent (32) is positioned at said box body (31) top; Said ink outlet port (33) is positioned at said box body (31) bottom, and said ink supply port (34) is positioned at said box body (31) middle part, and said switch (35) is arranged in the said box body (31).
3. a kind of negative pressure ink supply according to claim 2 system is characterized in that being connected with filter (7) between the outlet of said ink supply port (34) and said ink supply pump (5).
4. negative pressure ink supply method is characterized in that may further comprise the steps:
Start the ink supply pump to the head cartridge ink supply, the switch control ink supply pump in the head cartridge makes the interior ink level of head cartridge stable;
The ink of spray nozzle liquid level difference of ink in the head cartridge is stabilized in H, and required vacuum is P in the head cartridge, and P=-0.01H;
Start vavuum pump and vacuum generator, adjusting vavuum pump operating current makes and reaches required vacuum in the head cartridge;
Shower nozzle driving work, the stable ejection of ink.
5. a kind of negative pressure ink supply method according to claim 4 is characterized in that said liquid level difference H is selected from 60～400mm, corresponding vacuum P is selected from-0.6～-4kPa.
6. a kind of negative pressure ink supply method according to claim 5 is characterized in that said liquid level difference H is selected from 200～300mm, corresponding vacuum P is selected from-2～-3kPa.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN2011103076348A CN102442077A (en) | 2011-10-10 | 2011-10-10 | System and method for negative-pressure ink supply of rigid printed circuit board jet printing |
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| CN2011103076348A CN102442077A (en) | 2011-10-10 | 2011-10-10 | System and method for negative-pressure ink supply of rigid printed circuit board jet printing |
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| CN102442077A true CN102442077A (en) | 2012-05-09 |
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| CN2011103076348A Pending CN102442077A (en) | 2011-10-10 | 2011-10-10 | System and method for negative-pressure ink supply of rigid printed circuit board jet printing |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP7435000B2 (en) | 2020-02-17 | 2024-02-21 | コニカミノルタ株式会社 | Inkjet recording device and back pressure setting method |
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| US4042937A (en) * | 1976-06-01 | 1977-08-16 | International Business Machines Corporation | Ink supply for pressurized ink jet |
| US20070247497A1 (en) * | 2006-04-25 | 2007-10-25 | Lexmark International Inc. | Ink supply systems and methods for inkjet printheads |
| CN101138908A (en) * | 2007-10-24 | 2008-03-12 | 北大方正集团有限公司 | Negative pressure generating device, method and ink-jet printer |
| US20090122093A1 (en) * | 2005-01-14 | 2009-05-14 | Sharp Kabushiki Kaisha | Fluid Ejection Device, Inkjet Printer and Control Method for Fluid Ejection Device |
| CN101642985A (en) * | 2009-09-07 | 2010-02-10 | 深圳市润天智图像技术有限公司 | Negative pressure ink supply device and protection method thereof |
| CN101722733A (en) * | 2009-11-19 | 2010-06-09 | 南开大学 | Three-dimensional spray-painting ink supply system |
| CN202293670U (en) * | 2011-10-10 | 2012-07-04 | 江苏锐毕利实业有限公司 | Negative pressure ink supply system for jet printing of rigid printed circuit board |
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2011
- 2011-10-10 CN CN2011103076348A patent/CN102442077A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4042937A (en) * | 1976-06-01 | 1977-08-16 | International Business Machines Corporation | Ink supply for pressurized ink jet |
| US20090122093A1 (en) * | 2005-01-14 | 2009-05-14 | Sharp Kabushiki Kaisha | Fluid Ejection Device, Inkjet Printer and Control Method for Fluid Ejection Device |
| US20070247497A1 (en) * | 2006-04-25 | 2007-10-25 | Lexmark International Inc. | Ink supply systems and methods for inkjet printheads |
| CN101138908A (en) * | 2007-10-24 | 2008-03-12 | 北大方正集团有限公司 | Negative pressure generating device, method and ink-jet printer |
| CN101642985A (en) * | 2009-09-07 | 2010-02-10 | 深圳市润天智图像技术有限公司 | Negative pressure ink supply device and protection method thereof |
| CN101722733A (en) * | 2009-11-19 | 2010-06-09 | 南开大学 | Three-dimensional spray-painting ink supply system |
| CN202293670U (en) * | 2011-10-10 | 2012-07-04 | 江苏锐毕利实业有限公司 | Negative pressure ink supply system for jet printing of rigid printed circuit board |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP7435000B2 (en) | 2020-02-17 | 2024-02-21 | コニカミノルタ株式会社 | Inkjet recording device and back pressure setting method |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| ASS | Succession or assignment of patent right |
Owner name: JIANGSU HI-PRINT TECHNOLOGY CO., LTD. Free format text: FORMER OWNER: JIANGSU RUIBILI INDUSTRIAL CO., LTD. Effective date: 20121207 |
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| C41 | Transfer of patent application or patent right or utility model | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20121207 Address after: 224056 Yancheng City province high tech Industrial Zone, Phoenix South Road, No. 18, No. Applicant after: Jiangsu Hi-Print Technology Co., Ltd. Address before: 224056 No. 18 Fenghuang South Road, Yancheng City hi tech Industrial Zone, Jiangsu Province Applicant before: Jiangsu Rabily Industry Co., Ltd. |
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20120509 |