CN217073786U - Ink-jet printing constant negative pressure system - Google Patents
Ink-jet printing constant negative pressure system Download PDFInfo
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- CN217073786U CN217073786U CN202220798056.6U CN202220798056U CN217073786U CN 217073786 U CN217073786 U CN 217073786U CN 202220798056 U CN202220798056 U CN 202220798056U CN 217073786 U CN217073786 U CN 217073786U
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Abstract
The utility model discloses a permanent negative pressure system of inkjet printing belongs to printing inkjet technical field, and its technical scheme main points are: the device comprises a negative pressure tank, a negative pressure control panel, an ink box and a safety bottle, wherein the negative pressure control panel is electrically connected with a pressure pump, a vacuum pump, a pressure sensor A, a three-way electromagnetic valve, a two-way electromagnetic valve A, a two-way electromagnetic valve B and a pressure sensor B; the pressure sensor A, the three-way electromagnetic valve and the two-way electromagnetic valve A are connected with the negative pressure tank; the three-way electromagnetic valve, the pressure sensor B and the safety bottle are communicated in sequence, and the ink box and the two-way electromagnetic valve B are communicated with the safety bottle; the three-way electromagnetic valve is also connected with the pressure pump; the two-way electromagnetic valve B is also connected with a pressure relief valve; the vacuum pump is connected with the two-way electromagnetic valve A; the ink box is connected with a digital ink-jet printing head. The utility model discloses mainly used beats printer head for digital inkjet and provides continuous stable constant negative pressure ink supply environment to guarantee that digital inkjet beats printer head's ink continuously supply with circulation, digital inkjet and beat printer head's routine maintenance and maintenance.
Description
Technical Field
The utility model relates to a printing inkjet technical field especially relates to a constant negative pressure system is printed in inkjet.
Background
Continuous ink supply for the digital ink-jet printing head through the negative pressure system is the most common mode in the digital ink-jet printing industry at present, but the negative pressure system applied to the digital ink-jet printing technology in the industry at present generally has the problems of unstable negative pressure, insufficient pressure precision, easiness in backflow, slow positive and negative pressure switching response, uncontrollable positive pressure, damage to a nozzle and the like.
In order to solve the problems, an ink-jet printing constant negative pressure system is provided on the basis of the prior art.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a constant negative pressure system is printed in inkjet, this constant negative pressure system is printed in inkjet can provide a constant negative pressure that lasts stable and supply ink environment for digital inkjet beats printer head to guarantee that digital inkjet beats printer head's ink continuously supply with circulation, digital inkjet beats printer head's routine maintenance and maintenance.
The above technical purpose of the present invention can be achieved by the following technical solutions:
a constant negative pressure system for ink-jet printing comprises a negative pressure tank, a negative pressure control panel, an ink box and a safety bottle, wherein the negative pressure control panel is electrically connected with a pressure pump, a vacuum pump, a pressure sensor A, a three-way electromagnetic valve, a two-way electromagnetic valve A, a two-way electromagnetic valve B and a pressure sensor B;
the pressure sensor A, the three-way electromagnetic valve and the two-way electromagnetic valve A are all connected with the negative pressure tank; the three-way electromagnetic valve, the pressure sensor B and the safety bottle are communicated in sequence, and the ink box and the two-way electromagnetic valve B are communicated with the safety bottle; the three-way electromagnetic valve is also connected with the pressure pump; the two-way electromagnetic valve B is also connected with a pressure relief valve; the vacuum pump is connected with the two-way electromagnetic valve A; the ink box is connected with a digital ink-jet printing head.
By adopting the technical scheme, the negative pressure control panel can receive signals from components such as the pressure sensor A, the pressure sensor B, the liquid level sensor A, the pressure sensor C, the ink pressing button and the like, and send corresponding control instructions to the three-way electromagnetic valve, the vacuum pump, the two-way electromagnetic valve A and the two-way electromagnetic valve B; when the digital ink-jet printing head needs to be maintained, the pressure pump is utilized, so that the negative pressure in the safety bottle and the ink box is switched to positive pressure; the vacuum pump is used for generating negative pressure in the negative pressure tank, so that ink-jet printing can be realized under a negative pressure system; utilize pressure sensor A, help the negative pressure value in the real-time supervision negative pressure jar to with signal transfer to negative pressure controller, the negative pressure control panel can cut off or communicate negative pressure jar and vacuum pump through control two-way solenoid valve A, thereby guarantee through this kind of real-time feedback and control that the negative pressure of negative pressure jar inside is in the constant state.
The three ends of the three-way electromagnetic valve are respectively connected with the negative pressure tank, the safety bottle and the air outlet of the pressure pump, and the passage among the negative pressure tank, the safety bottle and the pressure pump can be communicated or closed under the control of the negative pressure control plate according to the real-time pressure condition in the negative pressure system. The two ends of the two-way electromagnetic valve A are respectively connected with the negative pressure tank and the vacuum pump, and the passage of the negative pressure tank and the vacuum pump can be communicated and closed according to the real-time pressure condition in the negative pressure system under the control of the negative pressure control panel.
The utility model discloses further set up to: and an air inlet of the pressure pump is connected with an air filter.
Through adopting above-mentioned technical scheme, utilize air cleaner, help guaranteeing the absolute clean of admitting air.
The utility model discloses further set up to: the pressure sensor B is provided with a display meter.
The utility model discloses further set up to: the negative pressure control panel is electrically connected with an ink pump, and the ink pump is connected with a waste ink barrel.
The utility model discloses further set up to: a liquid level sensor A is installed in the ink box, and a liquid level sensor B is arranged inside the safety bottle.
The utility model discloses further set up to: the negative pressure control panel is electrically connected with an ink pressing button.
Through adopting above-mentioned technical scheme, two way solenoid valve B's one end is located between three way solenoid valve and the safety bottle, and the relief valve has been connected to two way solenoid valve B's the other end, when digital inkjet printer head was maintained, when the positive pressure value in safety bottle and the ink horn was greater than or was less than the pressure value that sets for on the pressure sensor B, negative pressure control board can control two way solenoid valve B and open or close to can arrange unnecessary pressure or maintain the positive pressure in safety bottle and the ink horn through the relief valve.
The liquid level sensor A can detect the liquid level of ink, and is beneficial to maintaining the normal operation of ink-jet printing; when the liquid level sensor A is abnormally damaged or the illegal operation causes the backflow of ink in the ink box, the ink can preferentially flow back into the safety bottle, when the ink in the safety bottle reaches a certain amount, the liquid level sensor B can be triggered, and the ink pump is controlled to work to pump waste ink in the safety bottle into the waste ink barrel, so that the safety bottle can effectively prevent the ink from flowing back into other air path components.
The utility model discloses further set up to: the negative pressure control panel is connected with a pressure sensor C, and the pressure sensor C is connected with the safety bottle.
The utility model discloses further set up to: the pressure sensor C is provided with a display meter.
Through adopting above-mentioned technical scheme, connect pressure sensor C at the safety bottle, can the inside pressure value of real-time detection safety bottle, simultaneously, pressure sensor B can monitor the pressure value in safety bottle and the ink box, through pressure sensor B and pressure sensor C's two table monitoring mode, can reach negative pressure accurate control, real-time feedback, last stable effect, beat printer head for digital inkjet and provide a good operational environment, but the life of greatly increased shower nozzle.
To sum up, the utility model discloses following beneficial effect has:
1. the utility model discloses can control the negative pressure value in the ink box, make it continuously be in accurate invariable negative pressure state, help guaranteeing that the digital inkjet beats the stable supply that lasts of printer head's ink, improve the quality effect that the inkjet was printed.
2. The utility model discloses a negative pressure in the accurate feedback control ink box of two pressure sensor C to through the negative pressure in the more accurate pressure sensor A real-time detection negative pressure jar, can reach the accurate control of negative pressure, real-time feedback lasts stable effect, beats printer head for digital inkjet and provides a good operational environment, but the life of greatly increased shower nozzle.
3. The utility model discloses a malleation value in the pressure sensor B real-time detection ink box to the real-time feedback is to the negative pressure control panel, and carries out the pressure release through the relief valve after controlling two-way solenoid valve B intercommunication, can make positive negative pressure switch accomplish quick response, real-time control, reliable and stable effect, fine protection digital inkjet beats printer head, can prolong the life of shower nozzle greatly.
4. The utility model discloses install the safety bottle between ink horn and various electrical components, can be fine realize liquid-gas separation, when the ink in the ink horn flows back because level sensor A damages unusually or the illegal operation leads to, the ink can flow back to in the safety bottle preferentially, and, the safety bottle can make the ink can not flow back to in other gas circuit components and parts again; when the ink in the safety bottle reaches a certain amount, a sensor is triggered and the ink pump is controlled to work, so that the waste ink is pumped into the waste ink barrel; the function can make the maintenance of the ink path system simpler and more convenient, and can also greatly reduce the damage of electrical components, thereby reducing the labor cost and the material cost to a great extent.
Drawings
Fig. 1 is a schematic view of the connection relationship of the inkjet printing constant negative pressure system according to the embodiment of the present invention.
In the figure: 1. a negative pressure tank; 2. a negative pressure control plate; 3. a pressure pump; 4. a vacuum pump; 5. a pressure sensor A; 6. a three-way electromagnetic valve; 7. a two-way solenoid valve A; 8. a two-way electromagnetic valve B; 9. a pressure relief valve; 10. a pressure sensor B; 11. a pressure sensor C; 12. a safety bottle; 13. an ink cartridge; 14. a liquid level sensor A; 15. an ink pump; 16. a waste ink tank; 17. a digital ink jet printhead; 18. an air filter; 19. an ink pressing button; 20. and a liquid level sensor B.
Detailed Description
The invention will be described in further detail with reference to the following drawings and embodiments:
example (b): a constant negative pressure system for ink-jet printing comprises a negative pressure tank 1, a negative pressure control plate 2, an ink box 13 and a safety bottle 12, wherein the negative pressure control plate 2 is connected with a pressure pump 3, a vacuum pump 4, a pressure sensor A5, a three-way electromagnetic valve 6, a two-way electromagnetic valve A7, a two-way electromagnetic valve B8, a pressure sensor B10, an ink pump 15 and an ink pressing button 19; the ink pump 15 is connected to a waste ink tank 16. The pressure sensor B10 is a pressure gauge.
The pressure sensor A5, the three-way electromagnetic valve 6 and the two-way electromagnetic valve A7 are all connected with the negative pressure tank 1; the three-way electromagnetic valve 6, the ink box 13, the two-way electromagnetic valve B8 and the pressure sensor B10 are all connected with the safety bottle 12; the three-way electromagnetic valve 6 is also connected with the pressure pump 3; the two-way electromagnetic valve B8 is also connected with a pressure relief valve 9; the vacuum pump 4 is connected with a two-way electromagnetic valve A7; a liquid level sensor A14 is installed in the ink box 13, and the ink box 13 is connected with a digital ink-jet printing head 17; the safety bottle 12 is provided with a liquid level sensor B20 inside. An air filter 18 is connected to the air inlet of the pressure pump 3. The negative pressure control board 2 is connected with a pressure sensor C11, the pressure sensor C11 is a negative pressure meter, and the negative pressure meter is connected with the safety bottle 12.
The working principle is as follows: when the digital ink-jet printing head 17 needs to work continuously, the negative pressure control panel 2 communicates the negative pressure tank 1 with the safety bottle 12 by controlling the three-way electromagnetic valve 6; the pressure sensor C11 and the pressure sensor B10 can monitor the negative pressure values inside the safety bottle 12 and the ink cartridge 13 in real time, which helps to ensure that the negative pressure values inside the negative pressure tank 1, the safety bottle 12 and the ink cartridge 13 are consistent, thereby ensuring that the ink cartridge 13 stably and continuously supplies ink with constant pressure and constant flow rate to the digital inkjet print head 17.
When the digital ink-jet printing head 17 needs to be maintained, the ink pressing button 19 is clicked to transmit an ink pressing signal to the negative pressure control plate 2, then the negative pressure control plate 2 synchronously controls the three-way electromagnetic valve 6 to communicate the safety bottle 12 with the pressure pump 3, and the pressure pump 3 continuously works; at this time, the inside of the safety bottle 12 and the inside of the ink box 13 are switched from negative pressure to positive pressure, if the pressure sensor B10 detects that the positive pressure value inside the safety bottle 12 and the inside of the ink box 13 is greater than the pressure value set on the pressure sensor B10, the pressure sensor B10 feeds back a signal to the negative pressure control plate 2, the negative pressure control plate 2 controls the two-way electromagnetic valve B8 to be opened, and redundant pressure is discharged through the pressure relief valve 9; if the pressure sensor B10 detects that the positive pressure in the safety bottle 12 and the ink cartridge 13 is less than the set value, the negative pressure control board 2 will control the two-way solenoid valve B8 to close, so as to ensure that the positive pressure applied to the digital inkjet print head 17 during the maintenance process is safe and constant.
When the ink in the ink cartridge 13 flows back due to abnormal damage or illegal operation of the liquid level sensor a14, the ink will flow back into the safety bottle 12 preferentially and will not flow back into other air path components through the special structure in the safety bottle 12. When the amount of ink in safety bottle 12 reaches a certain amount, sensor 20 is triggered and ink pump 15 is controlled to operate to pump waste ink into waste ink tank 16.
The utility model discloses can control the negative pressure value in the ink horn 13, make it continuously be in accurate invariable negative pressure state, help guaranteeing that digital inkjet beats the stable supply that lasts of printer head 17's ink, improve the quality effect that the inkjet was printed.
The utility model discloses a negative pressure in the accurate feedback control ink horn 13 of two pressure sensor C11 to through the negative pressure in more accurate pressure sensor A5 real-time detection negative pressure jar 1, can reach the accurate control of negative pressure, real-time feedback lasts stable effect, and it provides a good operational environment to beat printer head 17 for digital inkjet, but the life of greatly increased shower nozzle.
The utility model discloses a positive pressure value in pressure sensor B10 real-time detection ink box 13 to give negative pressure control panel 2 in real time, and carry out the pressure release through relief valve 9 after controlling two-way solenoid valve B8 intercommunication, can make positive negative pressure switch accomplish quick response, real-time control, reliable and stable effect, fine protection digital inkjet printer head 17, can prolong the life of shower nozzle greatly.
The utility model discloses install safe bottle 12 between ink horn 13 and various electrical components, can be fine realize liquid-gas separation, when the ink in the ink horn 13 flows back because level sensor A14 damages unusually or the illegal operation leads to, the ink can flow back to safe bottle 12 in priority and lead to the special construction in the safe bottle 12 and make the ink can not flow back to other gas circuit components and parts again; when the ink in the safety bottle 12 reaches a certain amount, the liquid level sensor B20 is triggered and the ink pump 15 is controlled to pump the waste ink into the waste ink tank 16; the function can make the maintenance of the ink path system simpler and more convenient, and can also greatly reduce the damage of electrical components, thereby reducing the labor cost and the material cost to a great extent.
The present embodiment is only for explaining the present invention, and it is not limited to the present invention, and those skilled in the art can make modifications to the present embodiment without inventive contribution as required after reading the present specification, but all of them are protected by patent laws within the scope of the claims of the present invention.
Claims (8)
1. A constant negative pressure system for ink-jet printing is characterized in that: the device comprises a negative pressure tank (1), a negative pressure control panel (2), an ink box (13) and a safety bottle (12), wherein the negative pressure control panel (2) is electrically connected with a pressure pump (3), a vacuum pump (4), a pressure sensor A (5), a three-way electromagnetic valve (6), a two-way electromagnetic valve A (7), a two-way electromagnetic valve B (8) and a pressure sensor B (10);
the pressure sensor A (5), the three-way electromagnetic valve (6) and the two-way electromagnetic valve A (7) are connected with the negative pressure tank (1); the three-way electromagnetic valve (6), the pressure sensor B (10) and the safety bottle (12) are communicated in sequence, and the ink box (13) and the two-way electromagnetic valve B (8) are communicated with the safety bottle (12); the three-way electromagnetic valve (6) is also connected with the pressure pump (3); the two-way electromagnetic valve B (8) is also connected with a pressure release valve (9); the vacuum pump (4) is connected with the two-way electromagnetic valve A (7); the ink box (13) is connected with a digital ink-jet printing head (17).
2. The ink jet printing constant negative pressure system of claim 1, wherein: an air inlet of the pressure pump (3) is connected with an air filter (18).
3. The ink jet printing constant negative pressure system of claim 1, wherein: the pressure sensor B (10) is provided with a display meter.
4. The ink jet printing constant negative pressure system of claim 1, wherein: the negative pressure control plate (2) is electrically connected with an ink pump (15), and the ink pump (15) is connected with a waste ink barrel (16).
5. The ink jet printing constant negative pressure system of claim 4, wherein: a liquid level sensor A (14) is installed in the ink box (13), and a liquid level sensor B (20) is arranged in the safety bottle (12).
6. The ink jet printing constant negative pressure system of claim 1, wherein: the negative pressure control plate (2) is electrically connected with an ink pressing button (19).
7. The ink jet printing constant negative pressure system of claim 1, wherein: the negative pressure control plate (2) is connected with a pressure sensor C (11), and the pressure sensor C (11) is connected with the safety bottle (12).
8. The ink jet printing constant negative pressure system of claim 7, wherein: the pressure sensor C (11) is provided with a display meter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220798056.6U CN217073786U (en) | 2022-04-07 | 2022-04-07 | Ink-jet printing constant negative pressure system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220798056.6U CN217073786U (en) | 2022-04-07 | 2022-04-07 | Ink-jet printing constant negative pressure system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217073786U true CN217073786U (en) | 2022-07-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220798056.6U Active CN217073786U (en) | 2022-04-07 | 2022-04-07 | Ink-jet printing constant negative pressure system |
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| Country | Link |
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| CN (1) | CN217073786U (en) |
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- 2022-04-07 CN CN202220798056.6U patent/CN217073786U/en active Active
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