CN221067536U - Circulation ink supply system for ink-jet printing - Google Patents
Circulation ink supply system for ink-jet printing Download PDFInfo
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- CN221067536U CN221067536U CN202323227329.5U CN202323227329U CN221067536U CN 221067536 U CN221067536 U CN 221067536U CN 202323227329 U CN202323227329 U CN 202323227329U CN 221067536 U CN221067536 U CN 221067536U
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- 238000007641 inkjet printing Methods 0.000 title claims abstract description 17
- 238000007639 printing Methods 0.000 claims abstract description 28
- 239000007788 liquid Substances 0.000 claims description 56
- 238000010992 reflux Methods 0.000 claims description 11
- 230000000694 effects Effects 0.000 abstract description 7
- 238000001514 detection method Methods 0.000 description 5
- 239000012535 impurity Substances 0.000 description 5
- 238000001914 filtration Methods 0.000 description 4
- 239000007921 spray Substances 0.000 description 4
- 238000004140 cleaning Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000007599 discharging Methods 0.000 description 2
- 238000001556 precipitation Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000006260 foam Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000001376 precipitating effect Effects 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
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- Ink Jet (AREA)
Abstract
The utility model relates to the technical field of ink-jet printing, and discloses a circulating ink supply system for ink-jet printing, which comprises a printing nozzle device, a main ink box, an auxiliary ink box and a total ink box, wherein the printing nozzle device is communicated with the main ink box and the auxiliary ink box at the same time; a main ink supply pump is arranged between the total ink box and the main ink box so as to pump the ink in the total ink box into the main ink box; the main ink supply pump is communicated with the main ink box through a confluence block, and the confluence block is simultaneously communicated with the auxiliary ink box; ink flows into the main ink box from the main ink box under the action of the main ink supply pump, and is injected into the printing nozzle device through the main ink box to perform printing work; under the effect of the circulating ink pump, the ink can form a flowing circulating line which flows through the confluence block, the main ink box, the auxiliary ink box, the circulating ink pump and the confluence block, and the ink is driven to flow in the ink supply system, so that the phenomenon that the ink is precipitated and the final printing effect is influenced is avoided.
Description
Technical Field
The utility model relates to the technical field of ink-jet printing, in particular to a circulating ink supply system for ink-jet printing.
Background
At present, the ink jet printing technology is widely applied to the semiconductor and display industries, and forms images by ejecting ink drops onto a printing medium through a printing nozzle, and a stable printing nozzle ink supply system is a guarantee of printing quality.
The printing ink is easy to precipitate in the existing ink supply system, so that the problems of blockage of a printing nozzle, uneven printing effect and the like are caused; in addition, the conventional ink supply system has problems and defects such as poor air bubbles, poor broken lines, poor foreign matters, and poor defects.
Disclosure of utility model
The utility model aims to solve the problem of providing a circulating ink supply system for ink-jet printing, which pumps ink in a total ink box into a main ink box through a main ink supply pump, and flows into a printing nozzle device through the main ink box to perform ink-jet printing; after printing, the ink is led to form a flowing circulation line through the confluence block, the main ink box, the auxiliary ink box, the circulating ink pump and the confluence block by the circulating ink pump so as to solve the problem of ink precipitation in the ink box.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
The circulating ink supply system for ink jet printing comprises a printing nozzle device, a main ink box, an auxiliary ink box and a total ink box communicated with the main ink box, wherein the printing nozzle device is communicated with the main ink box and the auxiliary ink box at the same time;
A main ink supply pump is arranged between the total ink box and the main ink box so as to pump the ink in the total ink box into the main ink box; the main ink supply pump is communicated with the main ink box through a confluence block, the confluence block is simultaneously communicated with the auxiliary ink box, and a circulating ink pump is further arranged between the main ink supply pump and the auxiliary ink box.
In a preferred embodiment of the present utility model, a first filter is disposed between the main ink supply pump and the manifold block, and a second filter is disposed between the manifold block and the main ink cartridge.
In a preferred embodiment of the utility model, a liquid deaerator is arranged between the confluence block and the second filter, and one end of the liquid deaerator is connected with a deaeration negative pressure air source device.
In a preferred embodiment of the present utility model, one end of the main ink box is further connected to a nozzle ink pressing air source device and a main ink air source device through a switching valve; one end of the auxiliary ink box is also connected with a reflux negative pressure air source device.
In a preferred embodiment of the utility model, a first negative pressure gauge is arranged between the deaeration negative pressure air source device and the liquid deaerator, a second negative pressure gauge is arranged between the backflow negative pressure air source device and the auxiliary ink box, and a third negative pressure gauge is arranged between the switching valve and the main ink box.
In a preferred embodiment of the utility model, an ink supply on-off valve is arranged between the total ink box and the main ink supply pump, and the ink supply on-off valve is used for adjusting the on-off of a pipeline between the total ink box and the main ink supply pump.
Advantageous effects
(1) In the utility model, ink flows into a main ink box from a main ink box under the action of a main ink supply pump, and is injected into a printing nozzle device through the main ink box to perform printing work; under the action of the circulating ink pump, the ink can form a flowing circulating line which flows through the confluence block, the main ink box, the auxiliary ink box, the circulating ink pump and the confluence block, and the ink is driven to flow in the ink supply system, so that the ink is prevented from precipitating and the final printing effect is prevented from being influenced.
(2) In the utility model, the first filter and the second filter form the multi-stage liquid filtering device, and impurities in the ink are filtered before being injected into the printing nozzle device, so that the problem of poor impurities in an ink supply system is solved.
(3) According to the utility model, under the drive of the deaeration negative pressure air source device, the liquid bubble in the ink can be removed through the liquid deaerator, so that the problem of bubble generation in printing is solved, and the printing effect and quality are improved.
Drawings
FIG. 1 is a schematic diagram of the system architecture of the present utility model;
1, a reflux negative pressure air source device; 2. the spray head presses the ink air source device; 3. a main ink source device; 4. a defoamation negative pressure air source device; 5. a total ink cartridge; 6. a switching valve; 7. a first negative pressure gauge; 8. an ink supply on-off valve; 9. a second negative pressure gauge; 10. a third negative pressure gauge; 11. a circulating ink pump; 12. a first filter; 13. a main ink supply pump; 14. a liquid deaerator; 15. a second filter; 16. a main ink cartridge; 17. an auxiliary ink box; 18. a print head device; 19. a confluence block; 20. a tracheal fluid detection device; 21. an air pump.
Detailed Description
The utility model will now be described in further detail with reference to the drawings and examples, which are simplified schematic illustrations of the basic structure of the utility model, which are presented only by way of illustration, and thus show only the structures that are relevant to the utility model.
As shown in fig. 1, a circulation ink supply system for inkjet printing includes a print head device 18, a main ink tank 16, a sub ink tank 17, and a total ink tank 5 communicating with the main ink tank 16, the print head device 18 communicating with the main ink tank 16 and the sub ink tank 17 at the same time; a main ink supply pump 13 is provided between the total ink tank 5 and the main ink tank 16 to pump the ink in the total ink tank 5 into the main ink tank 16; the main ink supply pump 13 is communicated with the main ink box 16 through a confluence block 19, the confluence block 19 is simultaneously communicated with the auxiliary ink box 17, and the circulating ink pump 11 is also arranged between the main ink supply pump 13 and the auxiliary ink box 17.
Specifically, the total ink cartridge 5 is a primary ink cartridge, and the main ink cartridge 16 and the sub ink cartridge 17 are secondary ink cartridges; the ink in the total ink tank 5 can be pumped to the main ink tank 16 by the main ink supply pump 13, and the main ink tank 16 supplies the print head device 18 with the print ink to support the progress of the print job.
The ink supply on-off valve 8 is arranged between the total ink box 5 and the main ink supply pump 13, and the ink supply on-off valve 8 is used for adjusting the on-off of a pipeline between the total ink box 5 and the main ink supply pump 13; the ink supply on-off valve 8 adopts a two-position two-way electromagnetic valve, namely, the two working states of the two-way electromagnetic valve are respectively a passage and a circuit break in a pipeline connecting the main ink box 5 and the main ink supply pump 13 so as to control the on-off of the pipeline, thereby realizing whether ink is supplied.
The confluence block 19 is hollow, has at least three interfaces, is respectively communicated with the main ink supply pump 13, the main ink box 16 and the circulating ink pump 11, and forms a circulating branch on the main ink supply path through the circulating ink pump 11, and the ink flow direction on the branch is the confluence block 19, the main ink box 16, the printing nozzle device 18, the auxiliary ink box 17, the circulating ink pump 11 and the confluence block 19; the ink is driven to flow in the ink supply system, so that the phenomenon that the ink is precipitated and the final printing effect is influenced is avoided.
Further, a first filter 12 is provided between the main ink supply pump 13 and the manifold block 19, and a second filter 15 is provided between the manifold block 19 and the main ink cartridge 16. Forming a multi-stage liquid filtering device in the ink supply system through the first filter 12 and the second filter 15, and filtering out impurities in the ink before the impurities are injected into the printing nozzle device 18 so as to solve the problem of poor impurities in the ink supply system; wherein, the model of the first filter 12 and the second filter 15 are respectively preferentially adopting 'Kebaite NPT42-B-LHPFC 0300'.
Further, a liquid deaerator 14 is arranged between the confluence block 19 and the second filter 15, and one end of the liquid deaerator 14 is connected with a deaeration negative pressure air source device 4. The liquid deaerator 14 adopts a gas-liquid separator MC17776A (G6811X 3C) which is provided with a liquid inlet, a liquid outlet and a bubble suction outlet, wherein the liquid inlet and the liquid outlet are respectively connected with the confluence block 19 and the second filter 15 through pipelines, and the bubble suction outlet is connected with the deaeration negative pressure air source device 4, namely, foam generated in the flowing process of ink can be sucked away by negative pressure, and only liquid is left to flow in the pipeline, so that the purpose of deaerating the liquid is achieved.
The above-mentioned, one end of the main ink box 16 is also connected with the shower nozzle and presses the ink air source device 2 and main ink air source device 3 through the switching valve 6; one end of the auxiliary ink box 17 is also connected with a reflux negative pressure air source device 1.
The switching valve 6 adopts a two-position three-way electromagnetic valve, and has two working positions, wherein one working position enables the nozzle ink pressing air source device 2 to be communicated with the main ink box 16, and the other working position enables the main ink air source device 3 to be communicated with the main ink box 16, namely, only one nozzle ink pressing air source device 2 and only one main ink air source device 3 can be communicated with the main ink box 16 at the same time.
The nozzle ink pressing air source device 2 and the main ink air source device 3 provide positive pressure for the system, and the positive pressure provided by the former is stronger than the positive pressure provided by the latter, and the nozzle can be dredged and cleaned by adjusting the positive pressure, so that the problem of dredging, cleaning and ink discharging of the nozzle is solved.
The reflux negative pressure air source device 1 has the function of providing negative pressure for the auxiliary ink box 17 of the system, so that the pressure in the main ink box 16 is higher than the pressure in the auxiliary ink box 17, thereby ensuring that the ink can smoothly reflux.
Further, on the air paths of the main ink box 16 and the auxiliary ink box 17, that is, on the pipelines respectively connected with the switching valve 6 and the reflux negative pressure air source device 1, an air pipe liquid detection device 20 is arranged, when the air pipe liquid detection device 20 senses that liquid is refluxed in the pipelines, the control system is closed in a program control mode, so that the ink in the relevant ink box is prevented from refluxing into the air paths, and the problem of the reflux of the liquid in the main ink box 16 and the auxiliary ink box 17 is solved.
In addition, a first negative pressure gauge 7 is arranged between the deaeration negative pressure air source device 4 and the liquid deaerator 14, a second negative pressure gauge 9 is arranged between the backflow negative pressure air source device 1 and the auxiliary ink box 17, and a third negative pressure gauge 10 is arranged between the switching valve 6 and the main ink box 16. The first negative pressure gauge 7, the second negative pressure gauge 9 and the third negative pressure gauge 10 are all used for detecting the air pressure in the corresponding air circuit, so that the situation of overhigh air pressure is avoided.
Wherein the second negative pressure gauge 9 and the third negative pressure gauge 10 are also used for recording the negative pressure difference between the main ink tank 16 and the auxiliary ink tank 17 so as to control the liquid flow rate through the negative pressure difference; the negative pressure difference is in direct proportion to the flow velocity, and the requirement of the spray head on the flow velocity is met by adjusting the negative pressure difference, so that the problem of spray head flow velocity adjustment is solved.
The main ink box 16 and the auxiliary ink box 17 are also respectively provided with a liquid level A and a liquid level B, four states can be obtained through the opening and closing conditions of the main ink box 16 and the auxiliary ink box 17, (the four states are used for stabilizing ink supply, the liquid level A and the liquid level B are respectively used for sensing the liquid quantity in the main ink box 16 and the auxiliary ink box 17, and then the flow rate of ink circulation can be accurately controlled.) as follows:
state one: the liquid level A and the liquid level B are closed, the main ink supply pump 13 is started to inject ink into the main ink box 16, and the circulating ink pump 11 is stopped;
State two: the liquid level A is opened, the liquid level B is closed, and the main ink supply pump 13 and the circulating ink pump 11 stop working at the moment;
state three: the liquid level A is closed, the liquid level B is opened, the main ink supply pump 13 stops working at the moment, the circulating ink pump 11 is started, and the ink enters the main ink box 16 from the auxiliary ink box 17 through the circulating branch;
State four: both level a and level B are on, at which time both the main ink supply pump 13 and the circulating ink pump 11 stop working, and this state should or should not occur frequently, at which time ink is waiting to flow from the main ink tank 16 to the sub ink tank 17, reaching state three.
When the liquid level A in the main ink box 16 is not sensed, the circulating ink pump 11 starts to work and ink starts to flow back when the liquid level B in the auxiliary ink box 17 is sensed, so that the problem of stable liquid level between the two ink boxes is solved, in addition, the liquid level A and the liquid level B can be used for solving the problem of stable liquid level interval of the nozzle ink boxes, namely, the height change of the liquid level is the sensed height (about 3 mm) of the liquid levels A and B.
In summary, the negative pressure or positive pressure of the reflux negative pressure air source device 1, the nozzle ink pressure air source device 2, the main ink air source device 3 and the deaeration negative pressure air source device 4 are respectively manufactured and realized by the air pump 21 connected with the air pump; the liquid bubble removing device is designed to solve the problem of printing bubbles; designing a multistage liquid filtering device for solving the problem of bad foreign matters; the circulating device is designed for solving the problem of liquid precipitation in the ink box: a reflux pump device between the main ink box 16 and the auxiliary ink box 17 is designed for solving the problem of stable liquid level; a positive pressure system is designed to solve the problems of dredging, cleaning and ink discharging of the spray head; liquid level detection devices (liquid level A and liquid level B) of the main ink box 16 and the auxiliary ink box 17 are designed to solve the problem of stability of the liquid level height interval of the nozzle ink box; the air pipe liquid detection device 20 is designed for solving the problem of liquid backflow in the main ink box 16 and the auxiliary ink box 17; the negative pressure system is designed, and the negative pressure difference between the main ink box 16 and the auxiliary ink box 17 is utilized to solve the problem of nozzle flow speed adjustment.
The above-described preferred embodiments according to the present utility model are intended to suggest that, from the above description, various changes and modifications can be made by the person skilled in the art without departing from the scope of the technical idea of the present utility model. The technical scope of the present utility model is not limited to the description, but must be determined according to the scope of claims.
Claims (6)
1. A cyclical ink supply system for inkjet printing, characterized by: the ink jet head device comprises a printing nozzle device (18), a main ink box (16), a secondary ink box (17) and a total ink box (5) communicated with the main ink box (16), wherein the printing nozzle device (18) is communicated with the main ink box (16) and the secondary ink box (17) at the same time;
a main ink supply pump (13) is arranged between the total ink box (5) and the main ink box (16) so as to pump the ink in the total ink box (5) into the main ink box (16);
The main ink supply pump (13) is communicated with the main ink box (16) through a confluence block (19), the confluence block (19) is simultaneously communicated with the auxiliary ink box (17), and a circulating ink pump (11) is further arranged between the main ink supply pump and the auxiliary ink box.
2. The circulating ink supply system for ink jet printing of claim 1, wherein: a first filter (12) is arranged between the main ink supply pump (13) and the confluence block (19), and a second filter (15) is arranged between the confluence block (19) and the main ink box (16).
3. The circulating ink supply system for ink jet printing of claim 2, wherein: a liquid deaerator (14) is arranged between the confluence block (19) and the second filter (15), and one end of the liquid deaerator (14) is connected with a deaeration negative pressure air source device (4).
4. A circulating ink supply system for ink jet printing as claimed in claim 3, wherein: one end of the main ink box (16) is also connected with a nozzle ink pressing air source device (2) and a main ink air source device (3) through a switching valve (6); one end of the auxiliary ink box (17) is also connected with a reflux negative pressure air source device (1).
5. The circulating ink supply system for ink jet printing of claim 4, wherein: a first negative pressure meter (7) is arranged between the defoaming negative pressure air source device (4) and the liquid deaerator (14), a second negative pressure meter (9) is arranged between the backflow negative pressure air source device (1) and the auxiliary ink box (17), and a third negative pressure meter (10) is arranged between the switching valve (6) and the main ink box (16).
6. The circulating ink supply system for ink jet printing of claim 5, wherein: an ink supply on-off valve (8) is arranged between the total ink box (5) and the main ink supply pump (13), and the ink supply on-off valve (8) is used for adjusting the on-off of a pipeline between the total ink box (5) and the main ink supply pump (13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323227329.5U CN221067536U (en) | 2023-11-29 | 2023-11-29 | Circulation ink supply system for ink-jet printing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323227329.5U CN221067536U (en) | 2023-11-29 | 2023-11-29 | Circulation ink supply system for ink-jet printing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221067536U true CN221067536U (en) | 2024-06-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202323227329.5U Active CN221067536U (en) | 2023-11-29 | 2023-11-29 | Circulation ink supply system for ink-jet printing |
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| Country | Link |
|---|---|
| CN (1) | CN221067536U (en) |
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2023
- 2023-11-29 CN CN202323227329.5U patent/CN221067536U/en active Active
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