CN215792642U - Digital printing machine supplies black circulation system suitable for white ink inkjet - Google Patents
Digital printing machine supplies black circulation system suitable for white ink inkjet Download PDFInfo
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- CN215792642U CN215792642U CN202121972998.3U CN202121972998U CN215792642U CN 215792642 U CN215792642 U CN 215792642U CN 202121972998 U CN202121972998 U CN 202121972998U CN 215792642 U CN215792642 U CN 215792642U
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Abstract
The utility model provides an ink supply circulating system of a digital printing machine suitable for white ink jet, which designs three times of ink path circulation, wherein the first time of ink path circulation is that a stirring motor is arranged in a main ink tank; the second ink path circulation is that the ink in the main ink tank is injected into the ink supply and discharge valve body through the one-way valve, the ink in the ink supply and discharge valve body is supplied to the secondary ink box through the ink pump and the ink valve, and if the secondary ink box is not short of ink, the ink returns to the main ink tank through the ink pump; the third circulation of the ink path is that the second-stage ink box I and the second-stage ink box II are designed to have liquid level height difference, ink in the ink supply and discharge valve firstly flows into the second-stage ink box II under the action of the ink pump, the ink in the second-stage ink box II is injected into the second-stage ink box I through the ink pump, and the ink in the second-stage ink box I enters the spray head through the spray head inlet under the action of gravity and then flows to the second-stage ink box II through the spray head outlet. The utility model perfectly solves the problem that white ink is easy to form sediment to block the nozzle, thereby ensuring the quality and precision of printed products.
Description
Technical Field
The utility model relates to an ink supply circulating system of a digital printer suitable for white ink jet, and belongs to the technical field of digital equipment.
Background
In digital ink jet printing equipment, white ink jet printing is always an important part, and because white ultraviolet light curing ink contains inorganic pigment titanium dioxide, the inorganic pigment is insoluble in organic solvents, precipitates are very easily formed when the ink is kept still for a long time, particularly, in a high-temperature printing environment of about 50 degrees, the precipitates are more easily formed in a secondary ink box in an ink supply system without ink circulation to block a nozzle of a spray head, so that ink jet defects such as incomplete pattern printing and the like, such as line missing, line breaking and the like, are caused in the ink jet process, and then unqualified products are repaired or scrapped, and great waste is caused by manpower and material resources in the actual production process.
SUMMERY OF THE UTILITY MODEL
The utility model provides an ink supply circulating system of a digital printing machine suitable for white ink jet, and aims to solve the problem that white ink in the ink supply system of the digital printing machine is easy to form precipitates to block a nozzle.
The utility model is realized by adopting the following technical scheme: an ink supply circulating system of a digital printing machine suitable for white ink jet comprises a main ink tank and a secondary ink box, wherein a stirring motor is installed in the main ink tank and is in driving connection with a stirring rod, blades are installed on the stirring rod, and the blades on the stirring rod are driven by the stirring motor to stir ink in the main ink tank, so that the first circulation of an ink path is realized; the ink in the main ink tank is connected with an ink supply and discharge valve body through a one-way valve D1, the ink supply and discharge valve body is connected with the secondary ink box through an ink pump M1 and an ink valve Z1, and the ink supply and discharge valve body is connected with the main ink tank through an ink pump M3, so that the secondary circulation of an ink path is realized; the second grade ink horn comprises second grade ink horn I and second grade ink horn II and has the liquid level difference in height, supplies the black valve body of arranging to be connected with second grade ink horn II through ink pump M1, and second grade ink horn II rethread ink pump M2 is connected with second grade ink horn I, and second grade ink horn I is connected with second grade ink horn II through shower nozzle entry, shower nozzle export, so far, realizes the circulation of china ink way third time.
Preferably, the system is further provided with a vacuum tank, and the vacuum tank is respectively connected with the second-stage ink box I and the second-stage ink box II through gas pipelines. The vacuum tank is arranged to increase negative pressure conditions for the second-stage ink box I and the second-stage ink box II. Under the combined action of surface tension and negative pressure, ink will not leak from nozzle when the nozzle is not in operation
Preferably, the liquid level difference between the two-stage ink box I and the two-stage ink box II is kept at 50mm, and the ink in the two-stage ink box 1 can smoothly flow into the two-stage ink box 2 under the action of gravity generated by the liquid level difference; the height difference between the second-stage ink box I and the nozzle is kept within 200mm, and the second-stage ink box I and the nozzle are matched with a stable negative pressure system for use, so that the stability of a negative pressure ink meniscus of the nozzle can be ensured.
Preferably, main china ink jar is cylindricly, and the flabellum of puddler can realize the stirring at no dead angle under agitator motor's drive, avoids inorganic pigment titanium dioxide to deposit in main china ink jar's corner.
The utility model has the technical effects that: the utility model adopts three times of ink path circulation to fully and circularly stir the white ultraviolet curing ink, thereby perfectly solving the problem that the white ink is easy to form sediment to block a nozzle, and ensuring the quality and precision of printed products; the first ink path is circulated, so that the ink cannot be precipitated in the main ink tank; the ink path is circulated for the second time, so that the ink supply and discharge valve body and the ink in the ink tube are ensured to flow, and the inorganic pigment titanium dioxide is prevented from precipitating on the tube wall or in the valve body; the third circulation of the ink path ensures that the ink cannot leak out from the nozzle when the spray head does not work, and simultaneously can prevent the inorganic pigment titanium dioxide from precipitating on the pipe wall or in the valve body.
Drawings
Fig. 1 is an overall schematic diagram of an ink supply circulation system of a digital printer suitable for white ink jet according to the present invention.
Detailed Description
The utility model is further described with reference to the following figures and embodiments.
Referring to fig. 1, an ink supply circulation system for a digital printer suitable for white ink jet uses three ink path circulations.
First ink path circulation: a low-speed running direct current stirring motor is installed in the main ink tank, the direct current stirring motor rotates clockwise all the time, and the stirring motor drives a stirring rod to rotate all the time at the speed of 10 revolutions per minute, so that ink cannot be precipitated. The main ink tank is circular, the fan blades of the stirring rod can be driven by the stirring motor to realize stirring without dead angles, and inorganic pigment titanium dioxide is prevented from being precipitated in the corners of the main ink tank.
And (3) second ink path circulation: the ink pump M3 will stir the ink through filter F1 and check valve D1, inject into supplying ink and discharging the valve block (supplying ink and discharging the valve block and being a machine-made part, an ink inlet, a ink return port, the valve block is hollow, the inside stores the ink, the second grade ink horn lacks the ink, can supply ink) in, if the second grade ink horn lacks the ink, supply the ink in the valve block and will supplement and flow into the second grade ink horn under the function of the ink pump, if the second grade ink horn does not lack the ink, the ink will be returned to the main ink horn again. The design can ensure that the ink in the ink supply and discharge valve body and the ink pipe flows, and prevent the inorganic pigment titanium dioxide from precipitating on the pipe wall or in the valve body.
Third ink path circulation: the ink in the ink supply and discharge valve body can be supplemented to flow into the second-stage ink box II under the action of the ink pump M1, the ink is injected into the second-stage ink box I through the ink pump M2, the liquid level difference of the two ink boxes is kept at 50mm, and after the liquid level reaches a set liquid level, the ink pumps M1 and M2 stop working; the ink of the second-stage ink box I flows into the spray head, if the spray head has an operation task, the circulation of the ink is stopped, and the ink valve on the ink return pipe is closed at the moment; if the spray head has no operation task, the circulation of the ink is started, the ink valve on the ink return pipe is opened at the moment, the ink of the second-stage ink box I flows into the second-stage ink box II under the action of the gravity of which the liquid level difference is kept at 50mm, and the ink is injected into the second-stage ink box I through the ink pump M2 after the liquid level sensor of the second-stage ink box II reaches a set value, so that the third circulation of the ink path is realized.
The ink can not leak out from the nozzle when the sprayer does not work due to the combined action of surface tension and negative pressure in the sprayer, the height difference between the second-stage ink box I and the sprayer is within 200mm, and a stable negative pressure system is arranged, so that the stability of a negative pressure ink meniscus of the nozzle can be ensured.
The utility model can realize that the white ink containing the inorganic pigment titanium dioxide does not precipitate to block the nozzle, thereby greatly improving the yield of the product.
Claims (4)
1. The utility model provides a digital printing machine supplies black circulation system suitable for white ink is inkjet, includes main ink tank, second grade ink horn, its characterized in that: a stirring motor is arranged in the main ink tank and is in driving connection with a stirring rod, blades are arranged on the stirring rod, and the blades on the stirring rod are driven by the stirring motor to stir the ink in the main ink tank, so that the first circulation of the ink path is realized; the main ink tank is connected with an ink supply and discharge valve body through a one-way valve D1, the ink supply and discharge valve body is connected with the secondary ink box through an ink pump M1 and an ink valve Z1, and the ink supply and discharge valve body is connected with the main ink tank through an ink pump M3 to realize the secondary circulation of an ink path; the second grade ink horn comprises second grade ink horn I and second grade ink horn II and has the liquid level difference in height, supplies the black valve body of arranging to be connected with second grade ink horn II through ink pump M1, and second grade ink horn II rethread ink pump M2 is connected with second grade ink horn I, and second grade ink horn I is connected with second grade ink horn II through shower nozzle entry, shower nozzle export, so far, realizes the circulation of china ink way third time.
2. An ink supply circulation system for a digital printer adapted for white ink jet printing as claimed in claim 1, wherein: the vacuum tank is connected with the second-stage ink box I and the second-stage ink box II through gas pipelines respectively.
3. An ink supply circulation system for a digital printer adapted for white ink jet printing as claimed in claim 1, wherein: the liquid level difference between the second-stage ink box I and the second-stage ink box II is kept within 50mm, and the height difference between the second-stage ink box I and the spray head is kept within 200 mm.
4. An ink supply circulation system for a digital printer adapted for white ink jet printing as claimed in claim 1, wherein: the main ink tank is cylindrical.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121972998.3U CN215792642U (en) | 2021-08-22 | 2021-08-22 | Digital printing machine supplies black circulation system suitable for white ink inkjet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121972998.3U CN215792642U (en) | 2021-08-22 | 2021-08-22 | Digital printing machine supplies black circulation system suitable for white ink inkjet |
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| Publication Number | Publication Date |
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| CN215792642U true CN215792642U (en) | 2022-02-11 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202121972998.3U Active CN215792642U (en) | 2021-08-22 | 2021-08-22 | Digital printing machine supplies black circulation system suitable for white ink inkjet |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114604001A (en) * | 2022-04-07 | 2022-06-10 | 张家港欧码喷码电子有限公司 | Circulating ink supply system for UV printer |
| WO2024119582A1 (en) * | 2022-12-05 | 2024-06-13 | 萨克米机械(佛山南海)有限公司 | Ink path system |
-
2021
- 2021-08-22 CN CN202121972998.3U patent/CN215792642U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114604001A (en) * | 2022-04-07 | 2022-06-10 | 张家港欧码喷码电子有限公司 | Circulating ink supply system for UV printer |
| WO2024119582A1 (en) * | 2022-12-05 | 2024-06-13 | 萨克米机械(佛山南海)有限公司 | Ink path system |
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