CN212400646U - Negative pressure generator in ink supply system of printer - Google Patents
Negative pressure generator in ink supply system of printer Download PDFInfo
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- CN212400646U CN212400646U CN202020349910.1U CN202020349910U CN212400646U CN 212400646 U CN212400646 U CN 212400646U CN 202020349910 U CN202020349910 U CN 202020349910U CN 212400646 U CN212400646 U CN 212400646U
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Abstract
The utility model provides a negative pressure generator in an ink supply system of a printer, which comprises an air pump connected with an ink box, wherein a second air valve is arranged between an air suction port of the air pump and an interface of the ink box; a fourth air valve communicated with the atmosphere is connected between the second air valve and the ink box in parallel; a pressure sensor is arranged at the ink box interface; a buffer bottle is arranged between the second air valve and the ink box interface, and a first air valve is arranged between the buffer bottle and the ink box interface. And the fourth air valve is communicated with the atmosphere sequentially through the balance speed regulating valve and the second air filter. The utility model discloses though simple structure, negative pressure adjustment method is also succinct, nevertheless can ensure that the negative pressure value is in very stable state in negative pressure ink supply installation's work.
Description
Technical Field
The utility model belongs to the technical field of the printing equipment is spouted to the digit, especially involve a negative pressure generator among printer ink supply system.
Background
The negative pressure ink supply device of the existing printer is composed of a vacuum pump, an air pump, a negative pressure generator, an electromagnetic valve, a pressure regulating valve, a three-way valve and other parts, has a complex structure, is very unstable in work, is very difficult to regulate, and cannot meet the accurate requirement in a negative pressure ink supply system of the printer fundamentally. The optimal state of the negative pressure value required in the ink box in the ink supply system of the printer is that the negative pressure value is just right to suspend the ink in the ink box and the nozzle, which is in direct proportion to the ink storage amount in the ink box, and the problem of unstable negative pressure occurs because the ink storage amount in the ink box is changed in different ways during the operation of the printer.
SUMMERY OF THE UTILITY MODEL
The utility model provides a negative pressure generator among printer ink supply system solves current printer negative pressure ink supply unit negative pressure unstability, the difficult problem of adjusting.
In order to achieve the above purpose, the technical scheme of the utility model is realized like this:
a negative pressure generator in an ink supply system of a printer comprises an air pump connected with an ink box, wherein a second air valve is arranged between an air suction port of the air pump and an interface of the ink box; a fourth air valve communicated with the atmosphere is connected between the second air valve and the ink box in parallel; and a pressure sensor is arranged at the ink box interface.
Furthermore, a buffer bottle is arranged between the second air valve and the ink box interface, and a first air valve is arranged between the buffer bottle and the ink box interface.
Furthermore, the air outlet port of the air pump is also connected with the ink box interface, a third air valve is arranged between the air outlet port of the air pump and the ink box interface, and a negative pressure speed regulating valve communicated with the atmosphere is connected in parallel between the air suction port of the air pump and the second air valve.
Furthermore, the negative pressure speed regulating valve is communicated with the atmosphere through a first air filter.
Furthermore, the fourth air valve is communicated with the atmosphere through the balance speed regulating valve and the second air filter in sequence.
Compared with the prior art, the utility model discloses following beneficial effect has:
(1) the utility model has simple structure, but can ensure the negative pressure value to be in a very stable state during the work of the negative pressure ink supply device;
(2) the structure of the utility model can also provide positive pressure, and can provide enough pressure for cleaning the ink pressing of the spray head;
(3) the utility model provides a positive negative pressure generator control structure of this kind can also use in other fields.
Drawings
Fig. 1 is a schematic structural diagram of an embodiment of the present invention.
Wherein:
1. an air pump; 2. a negative pressure speed regulating valve; 3. a first air filter; 4. a third air valve; 5. a second air valve;
6. a pressure sensor; 7. a first air valve; 8. a buffer bottle; 9. a fourth air valve; 10. a balance speed regulating valve;
11. a second air filter; 12. an ink cartridge.
Detailed Description
It should be noted that, in the present invention, the embodiments and features of the embodiments may be combined with each other without conflict.
In order to make the objects and features of the present invention more comprehensible, embodiments of the present invention are further described below with reference to the accompanying drawings. It is noted that the drawings are in greatly simplified form and employ non-precise ratios for the purpose of facilitating and distinctly aiding in the description of the embodiments of the invention.
The design idea of the utility model is to connect the air pump suction port with the ink box, connect an air valve and an air valve communicating with atmosphere in the middle of the connection part in series, and there are a pressure sensor and a big gas cylinder near the ink box. When the negative pressure of the ink box is large, the air valve communicated with the atmosphere is opened to release air, so that the negative pressure is reduced; when the negative pressure is small, the other air valve is opened, the air pump sucks air, and the negative pressure is increased; when the negative pressure of the ink box is right, the two valves are locked.
According to the above design concept, as shown in fig. 1, the design structure of the negative pressure generator in the embodiment of the present invention includes an air pump 1, a second air valve 5, a fourth air valve 9, a negative pressure feedback adjusting system composed of a buffer bottle 8, and a positive pressure cleaning system controlled by a third air valve 4.
The second air valve 5 is used as a structure for providing negative pressure regulation in the negative pressure feedback regulation system, and is connected with an air suction port of the air pump 1 and an interface of the ink box 12 to form a branch for air suction of the air pump 1; a buffer bottle 8 is arranged between the second air valve 5 and the interface of the ink box 12, and a first air valve 7 is arranged between the buffer bottle 8 and the interface of the ink box 12;
the fourth air valve 9 is used as a structure for providing positive pressure regulation in the negative pressure feedback regulation system, one end of the fourth air valve is connected with a circuit between the buffer bottle 8 and the second air valve 5, the other end of the fourth air valve is sequentially connected with the balance speed regulating valve 10 and the second air filter 11, and the second air filter 11 is communicated with the atmosphere.
The buffer bottle 8 is used for buffering severe changes when the second air valve 5 and the fourth air valve 9 are opened and closed, and slow negative pressure change is guaranteed.
The third air valve 4 is connected between an air outlet port of the air pump 1 and an interface of the ink box 12 and used for cleaning a printer nozzle, a negative pressure speed regulating valve 2 is further arranged, one end of the negative pressure speed regulating valve 2 is connected with a circuit between an air suction port of the air pump 1 and the second air valve 5, the other end of the negative pressure speed regulating valve is connected with a first air filter 3, and the first air filter 3 is communicated with the atmosphere; and the air pump 1 is used as the other branch of air suction to provide positive pressure for cleaning the printer nozzle.
The negative pressure speed regulating valve 2 and the balance speed regulating valve 10 are mechanical knobs, the size of an air passage can be adjusted, and calibration is needed when negative pressure is regulated firstly.
The first air filter 3 and the second air filter 11 are used for preventing large-particle dust in the air from entering the spray head.
In normal operation, when the negative pressure of the ink box 1 is in a required negative pressure range, the second air valve 5, the fourth air valve 9 and the first air valve 7 are not electrified; the pressure sensor 6, the buffer bottle 8 and the ink box 1 form a closed space; reading the negative pressure of the closed space through the pressure sensor 6, comparing the read negative pressure with the set negative pressure to obtain a time parameter, and when the time parameter is a positive number, opening the second air valve 5, exhausting air from the closed space by the air pump 1, and increasing the negative pressure; when the time parameter is negative, the fourth air valve 9 is opened, the atmosphere enters the closed space through the second air filter 11 and the balance speed regulating valve 10, and the negative pressure is reduced;
when the sprayer is cleaned, positive pressure is filled in the sprayer, the first air valve 7, the second air valve 5, the third air valve 4 and the fourth air valve 9 are electrified, the air pump 1 sucks air from the first air filter 3 through the negative pressure speed regulating valve 2, and all air is pumped into the sprayer.
The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (5)
1. A negative pressure generator in an ink supply system of a printer is characterized by comprising an air pump connected with an ink box, wherein a second air valve is arranged between an air suction port of the air pump and an interface of the ink box; a fourth air valve communicated with the atmosphere is connected between the second air valve and the ink box in parallel; and a pressure sensor is arranged at the ink box interface.
2. The negative pressure generator in an ink supply system of a printer according to claim 1, wherein a buffer bottle is provided between the second air valve and the ink cartridge interface, and a first air valve is provided between the buffer bottle and the ink cartridge interface.
3. The negative pressure generator in an ink supply system of a printer according to claim 1, wherein the air outlet port of the air pump is connected to the ink cartridge interface, a third air valve is disposed between the air outlet port of the air pump and the ink cartridge interface, and a negative pressure speed regulating valve communicated with the atmosphere is connected in parallel between the air suction port of the air pump and the second air valve.
4. The negative pressure generator in an ink supply system of a printer as claimed in claim 3, wherein said negative pressure speed regulating valve is connected to the atmosphere through a first air filter.
5. The negative pressure generator in an ink supply system of a printer according to claim 1, wherein the fourth air valve is communicated with the atmosphere through the balance speed regulating valve and the second air filter in sequence.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020349910.1U CN212400646U (en) | 2020-03-19 | 2020-03-19 | Negative pressure generator in ink supply system of printer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020349910.1U CN212400646U (en) | 2020-03-19 | 2020-03-19 | Negative pressure generator in ink supply system of printer |
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| Publication Number | Publication Date |
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| CN212400646U true CN212400646U (en) | 2021-01-26 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202020349910.1U Active CN212400646U (en) | 2020-03-19 | 2020-03-19 | Negative pressure generator in ink supply system of printer |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111251718A (en) * | 2020-03-19 | 2020-06-09 | 天津长荣数码科技有限公司 | Negative pressure generator in printer ink supply system and negative pressure control method |
-
2020
- 2020-03-19 CN CN202020349910.1U patent/CN212400646U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111251718A (en) * | 2020-03-19 | 2020-06-09 | 天津长荣数码科技有限公司 | Negative pressure generator in printer ink supply system and negative pressure control method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20230105 Address after: 300400 Tianjin Beichen District Tianjin New Technology Industrial Park Beichen Science and Technology Industrial Park Patentee after: Masterwork Group Co.,Ltd. Patentee after: TIANJIN JOINTELLIGENT INTELLIGENT TECHNOLOGY CO.,LTD. Address before: 300400 No.11, Shuangchen Middle Road, economic and Technological Development Zone, Beichen District, Tianjin (2nd floor, office building of evergreen printing equipment Co., Ltd.) Patentee before: TIANJIN CHANGRONG DIGITAL TECHNOLOGY Co.,Ltd. |
|
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20230510 Address after: 300400 No. 11, Shuangchen Middle Road, Beichen economic and Technological Development Zone, Beichen District, Tianjin (2nd floor, office building of evergreen printing equipment Co., Ltd.) Patentee after: TIANJIN CHANGRONG DIGITAL TECHNOLOGY Co.,Ltd. Address before: 300400 Tianjin Beichen District Tianjin New Technology Industrial Park Beichen Science and Technology Industrial Park Patentee before: Masterwork Group Co.,Ltd. Patentee before: TIANJIN JOINTELLIGENT INTELLIGENT TECHNOLOGY CO.,LTD. |
|
| TR01 | Transfer of patent right |