CN114571868A - Ink circulation system - Google Patents
Ink circulation system Download PDFInfo
- Publication number
- CN114571868A CN114571868A CN202210201683.1A CN202210201683A CN114571868A CN 114571868 A CN114571868 A CN 114571868A CN 202210201683 A CN202210201683 A CN 202210201683A CN 114571868 A CN114571868 A CN 114571868A
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- CN
- China
- Prior art keywords
- ink
- box
- channel
- ink supply
- pump
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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- 238000010438 heat treatment Methods 0.000 claims abstract description 33
- 239000007921 spray Substances 0.000 claims abstract description 13
- 239000007788 liquid Substances 0.000 claims description 24
- 238000006073 displacement reaction Methods 0.000 claims description 4
- 238000007639 printing Methods 0.000 abstract description 12
- 230000000694 effects Effects 0.000 abstract description 4
- 230000007547 defect Effects 0.000 abstract description 3
- 238000007641 inkjet printing Methods 0.000 abstract description 3
- 239000000976 ink Substances 0.000 description 184
- 238000012544 monitoring process Methods 0.000 description 2
- 230000001276 controlling effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000013618 particulate matter Substances 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 239000013049 sediment Substances 0.000 description 1
Images
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
- B41J2/00—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed
- B41J2/005—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by bringing liquid or particles selectively into contact with a printing material
- B41J2/01—Ink jet
- B41J2/17—Ink jet characterised by ink handling
- B41J2/18—Ink recirculation systems
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
- B41J2/00—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed
- B41J2/005—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by bringing liquid or particles selectively into contact with a printing material
- B41J2/01—Ink jet
- B41J2/17—Ink jet characterised by ink handling
- B41J2/175—Ink supply systems ; Circuit parts therefor
- B41J2/17503—Ink cartridges
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
- B41J2/00—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed
- B41J2/005—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by bringing liquid or particles selectively into contact with a printing material
- B41J2/01—Ink jet
- B41J2/17—Ink jet characterised by ink handling
- B41J2/175—Ink supply systems ; Circuit parts therefor
- B41J2/17503—Ink cartridges
- B41J2/17513—Inner structure
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
- B41J2/00—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed
- B41J2/005—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by bringing liquid or particles selectively into contact with a printing material
- B41J2/01—Ink jet
- B41J2/17—Ink jet characterised by ink handling
- B41J2/175—Ink supply systems ; Circuit parts therefor
- B41J2/17503—Ink cartridges
- B41J2/17553—Outer structure
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
- B41J2/00—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed
- B41J2/005—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by bringing liquid or particles selectively into contact with a printing material
- B41J2/01—Ink jet
- B41J2/17—Ink jet characterised by ink handling
- B41J2/175—Ink supply systems ; Circuit parts therefor
- B41J2/17566—Ink level or ink residue control
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
- B41J2/00—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed
- B41J2/005—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by bringing liquid or particles selectively into contact with a printing material
- B41J2/01—Ink jet
- B41J2/17—Ink jet characterised by ink handling
- B41J2/175—Ink supply systems ; Circuit parts therefor
- B41J2/17596—Ink pumps, ink valves
Landscapes
- Ink Jet (AREA)
Abstract
The invention belongs to the technical field of digital ink-jet printing, and particularly relates to an ink circulating system which comprises an ink barrel, an ink supply pump, an ink return box, a circulating pump, a first heating device, a spray head and an ink supply box, wherein an ink supply channel is arranged between the ink barrel and the ink return box, two ends of the ink supply channel are respectively communicated with the ink barrel and the ink return box, and the ink supply pump is arranged on the ink supply channel; a circulation channel and an ink jet channel are arranged between the ink return box and the ink supply box; two ends of the circulating channel are respectively communicated with the ink returning box and the ink supply box, and the circulating pump and the first heating device are arranged on the circulating channel; two ends of the ink jet channel are respectively communicated with the ink return box and the ink supply box, and the spray head is arranged on the ink jet channel; the ink returning box and the ink supplying box are externally connected with a negative pressure system. In the system, when the ink circulates, the fluctuation of the ink is small, and the printing quality of the spray head is prevented from being influenced. And because the ink is heated to a constant temperature by the first heating device, the defect that a self-heating spray head is not available is overcome, and the printing effect is ensured.
Description
Technical Field
The invention belongs to the technical field of digital ink jet printing, and particularly relates to an ink circulating system.
Background
In order to make the nozzle in a better working state, the digital ink-jet printing technology is developed to the present, besides the ink supply pipeline, an ink circulation structure is added, in the prior art, ink is directly supplied to the main ink box and circularly enters and returns to the ink box, and the ink fluctuation is large in this way, so that the printing quality of the nozzle is easily influenced.
As disclosed in the prior art, an ink circulation system (patent application No. CN201520940180.1) includes a nozzle, a first-level ink tank for storing ink, an ink pump, and a pipeline for communicating the above structures, and further includes a second-level ink tank, wherein the pipeline includes an outflow pipe for communicating the first-level ink tank, the ink pump, the second-level ink tank, and the nozzle in sequence, and a return pipe for communicating the nozzle with the first-level ink tank in sequence. This prior art has such a problem.
Disclosure of Invention
In order to solve the above problems, a primary object of the present invention is to provide an ink circulation system, which has less fluctuation of ink during ink circulation and avoids affecting the printing quality of the head.
Another object of the present invention is to provide an ink circulation system, which heats the ink during circulation, thereby overcoming the disadvantage of no self-heating nozzle and ensuring the printing effect.
In order to achieve the above object, the present invention has the following technical means.
An ink circulation system is characterized by comprising an ink barrel, an ink supply pump, an ink return box, a circulating pump, a first heating device, a spray head and an ink supply box, wherein an ink supply channel is arranged between the ink barrel and the ink return box, two ends of the ink supply channel are respectively communicated with the ink barrel and the ink return box, and the ink supply pump is arranged on the ink supply channel; a circulation channel and an ink jet channel are arranged between the ink returning box and the ink supply box; the two ends of the circulating channel are respectively communicated with the ink return box and the ink supply box, and the circulating pump and the first heating device are arranged on the circulating channel; two ends of the ink jet channel are respectively communicated with the ink return box and the ink supply box, and the spray head is arranged on the ink jet channel; and the ink return box and the ink supply box are externally connected with a negative pressure system. In the system, the ink is supplied through the ink barrel, when the ink in the ink barrel is conveyed into the ink return box, the ink is ejected through the nozzle through the ink ejecting channel between the ink return box and the ink supply box, and the ink is circulated through the circulating channel between the ink return box and the ink supply box, so that the fluctuation of the ink is small when the ink is circulated, and the influence on the printing quality of the nozzle is avoided. And because the ink is heated to a constant temperature by the first heating device, the defect that a self-heating spray head is not available is overcome, and the printing effect is ensured.
Furthermore, an analog quantity liquid level sensor is arranged on the ink return box, and a liquid level switch is arranged on the ink supply box. The analog quantity liquid level sensor is used for monitoring the ink liquid level of the ink returning box, and the liquid level switch is used for monitoring the ink liquid level of the ink supplying box.
Further, the ink supply pump is a fixed displacement pump.
Further, the circulating pump is a variable pump. The unique ink feeding and returning mode and the variable pump ensure more stable ink and negative pressure environment, and the high-precision analog quantity liquid level sensor is adopted, so that the liquid level control precision reaches +/-0.05 mm and exceeds +/-5 mm precision of the same line, the negative pressure in the ink box is always in a stable state, and the negative pressure environment is basically unchanged, thereby being suitable for printing in different ink quantity states.
Further, a first filter is arranged on the ink supply channel.
Further, a second filter is arranged on the circulating channel. Through two filters, the sediment of particulate matter in the reducible ink has reduced the jam of orifice, has guaranteed the normal use of shower nozzle.
Furthermore, a second heating device is arranged on the ink supply channel. The first heating device and the second heating device can ensure the constant temperature of the ink in the system.
Further, the first heating device and the second heating device are both heat exchangers.
Furthermore, a throttle valve channel is further arranged between the ink return box and the ink supply box, two ends of the throttle valve channel are respectively communicated with the ink return box and the ink supply box, and a throttle valve is arranged on the throttle valve channel. The ink jet channel is used as the actual nozzle, the flow of the redundant ink is regulated by the bypass of the throttle valve channel, and the throttle valve can regulate the most proper flow required by the nozzle according to the actual printing ink quantity condition of each station.
Specifically, the ink supply channel is arranged so that the ink barrel, the dosing pump, the first filter, the second heating device and the ink return box are sequentially connected; the circulation channel is arranged, so that the ink return box, the variable pump, the first heating device, the second filter and the ink supply box are connected in sequence; the ink-jet channel is arranged so that the ink supply box, the spray head and the ink return box are connected in sequence; the throttle valve channel is arranged so that the ink supply box, the throttle valve and the ink return box are connected in sequence.
The working principle of the system is as follows:
1. ink inlet flow direction: ink barrel → constant volume pump → first filter → second heating device → ink return box
The analog quantity liquid level sensor detects that the ink return box liquid level is low, and when the liquid level switch detected to supply the ink box liquid level low, the ration pump work was taken out the ink in the china ink bucket and is filtered by first filter to flow through second heating device, the ink in the china ink pipe of second heating device with supplying the ink passageway heats and the constant temperature, so far, the ink after the heating got into the ink return box.
2. The ink circulation flow direction is as follows: ink returning box → variable pump → first heating device → second filter → ink supply box → throttle valve → ink returning box
The analog quantity liquid level sensor detects that the liquid level of the ink return box reaches, when the liquid level switch detects that the liquid level of the ink supply box is low, the variable pump works to pump ink, the ink passes through the first heating device and flows through the second filter, the ink is heated again at a constant temperature and is filtered, so far, the heated ink enters the ink supply box, when the liquid level of the ink supply box liquid level switch reaches, the negative pressure difference between the ink return box and the ink supply box is controlled through the negative pressure system, ink circulation is formed, the ink passes through the throttling valve and returns to the ink return box, so far, the ink return box keeps a stable liquid level, the variable pump continuously changes the speed to circulate the ink to pump the ink and heat exchange the ink, a constant liquid level and a stable negative pressure environment of the ink return box and the ink supply box are maintained, and ink circulation is formed.
3. The ink supply flow direction of the nozzle is as follows: supply ink box → spray head → return ink box
When the nozzle is used for printing, ink is supplied from the ink supply box and flows back to the ink return box.
The ink return box has the advantages that the ink is supplied through the ink barrel, when the ink in the ink barrel is conveyed into the ink return box, the ink is ejected through the nozzle through the ink ejection channel between the ink return box and the ink supply box, and the ink is circulated through the circulation channel between the ink return box and the ink supply box, so that the fluctuation of the ink is small during the ink circulation, and the printing quality of the nozzle is prevented from being influenced. And because the ink is heated to a constant temperature by the first heating device, the defect that a self-heating spray head is not available is overcome, and the printing effect is ensured.
Drawings
Fig. 1 is a block diagram of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Referring to fig. 1, an ink circulation system is characterized in that the system comprises an ink barrel 1, an ink supply pump 2, an ink return box 3, a circulation pump 4, a first heating device 5, a nozzle 6 and an ink supply box 7, an ink supply channel 11 is arranged between the ink barrel 1 and the ink return box 3, two ends of the ink supply channel 11 are respectively communicated with the ink barrel 1 and the ink return box 3, and the ink supply pump 2 is arranged on the ink supply channel 11; a circulation channel 31 and an ink-jet channel 32 are arranged between the ink returning box 3 and the ink supplying box 7; two ends of the circulating channel 31 are respectively communicated with the ink return box 3 and the ink supply box 7, and the circulating pump 4 and the first heating device 5 are both arranged on the circulating channel 31; two ends of the ink jet channel 32 are respectively communicated with the ink return box 3 and the ink supply box 7, and the spray head 6 is arranged on the ink jet channel 32; and the ink return box 3 and the ink supply box 7 are externally connected with a negative pressure system 8. The negative pressure system 8 is a structure for controlling the negative pressure of the ink return cartridge 3 and the ink supply cartridge 7 in the prior art.
Furthermore, an analog quantity liquid level sensor 33 is arranged on the ink returning box 3, and a liquid level switch 71 is arranged on the ink supplying box 7.
Further, the ink supply pump 2 is a fixed displacement pump.
Further, the circulation pump 4 is a variable pump.
Further, a first filter 12 is disposed on the ink supply channel 11.
Further, a second filter 34 is disposed on the circulation passage 31.
Further, a second heating device 13 is disposed on the ink supply channel 11.
Further, the first heating device 5 and the second heating device 13 are both heat exchangers.
Further, a throttle channel 35 is further arranged between the ink return box 3 and the ink supply box 7, two ends of the throttle channel 35 are respectively communicated with the ink return box 3 and the ink supply box 7, and a throttle 36 is arranged on the throttle channel 35.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be able to cover the technical solutions and the inventive concepts of the present invention within the technical scope of the present invention.
Claims (9)
1. An ink circulation system is characterized by comprising an ink barrel, an ink supply pump, an ink return box, a circulating pump, a first heating device, a spray head and an ink supply box, wherein an ink supply channel is arranged between the ink barrel and the ink return box, two ends of the ink supply channel are respectively communicated with the ink barrel and the ink return box, and the ink supply pump is arranged on the ink supply channel; a circulation channel and an ink jet channel are arranged between the ink return box and the ink supply box; the two ends of the circulating channel are respectively communicated with the ink return box and the ink supply box, and the circulating pump and the first heating device are arranged on the circulating channel; two ends of the ink jet channel are respectively communicated with the ink return box and the ink supply box, and the spray head is arranged on the ink jet channel; and the ink return box and the ink supply box are externally connected with a negative pressure system.
2. The ink circulation system of claim 1, wherein the ink return box is provided with an analog quantity liquid level sensor, and the ink supply box is provided with a liquid level switch.
3. An ink circulation system according to claim 1, wherein the ink supply pump is a fixed displacement pump.
4. The ink circulation system of claim 1, wherein the circulation pump is a variable displacement pump.
5. An ink circulation system according to claim 1, wherein the ink supply channel is further provided with a first filter.
6. An ink circulation system according to claim 1, wherein a second filter is provided in the circulation path.
7. An ink circulation system according to claim 1, wherein the ink supply channel is further provided with second heating means.
8. An ink circulation system according to claim 7, wherein the first and second heating means are both heat exchangers.
9. The ink circulation system of claim 1, wherein a throttle channel is further disposed between the ink return box and the ink supply box, two ends of the throttle channel are respectively communicated with the ink return box and the ink supply box, and a throttle valve is disposed on the throttle channel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210201683.1A CN114571868A (en) | 2022-03-03 | 2022-03-03 | Ink circulation system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210201683.1A CN114571868A (en) | 2022-03-03 | 2022-03-03 | Ink circulation system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114571868A true CN114571868A (en) | 2022-06-03 |
Family
ID=81776226
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210201683.1A Pending CN114571868A (en) | 2022-03-03 | 2022-03-03 | Ink circulation system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114571868A (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006159811A (en) * | 2004-12-10 | 2006-06-22 | Canon Finetech Inc | Ink supply device and pressure generating method |
| JP2014113816A (en) * | 2012-12-10 | 2014-06-26 | Samsung Electro-Mechanics Co Ltd | Ink circulation device and ink jet printer including the same |
| CN204547353U (en) * | 2015-02-15 | 2015-08-12 | 广东科达洁能股份有限公司 | Ceramic ink jet printer ink EGR |
| CN106827821A (en) * | 2017-03-30 | 2017-06-13 | 西安德高印染自动化工程有限公司 | A kind of totally-enclosed pair of negative-pressure cyclic ink feeding system of Digital ink-jet printer |
| CN211416658U (en) * | 2019-12-10 | 2020-09-04 | 广州市科赛恩电气技术有限公司 | Ink supply circulating system of ink-jet printer |
| CN212400652U (en) * | 2020-03-19 | 2021-01-26 | 天津长荣数码科技有限公司 | Ink circulation system suitable for ink jet equipment |
| CN113260515A (en) * | 2018-12-20 | 2021-08-13 | 科迪华公司 | Printing material feed system |
| CN215284001U (en) * | 2021-06-11 | 2021-12-24 | 深圳市润天智数字设备股份有限公司 | Ink supply system |
| US20210402789A1 (en) * | 2018-11-28 | 2021-12-30 | Neos S.R.L. | Ink supply system for digital printing device and digital printing device comprising said system |
-
2022
- 2022-03-03 CN CN202210201683.1A patent/CN114571868A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006159811A (en) * | 2004-12-10 | 2006-06-22 | Canon Finetech Inc | Ink supply device and pressure generating method |
| JP2014113816A (en) * | 2012-12-10 | 2014-06-26 | Samsung Electro-Mechanics Co Ltd | Ink circulation device and ink jet printer including the same |
| CN204547353U (en) * | 2015-02-15 | 2015-08-12 | 广东科达洁能股份有限公司 | Ceramic ink jet printer ink EGR |
| CN106827821A (en) * | 2017-03-30 | 2017-06-13 | 西安德高印染自动化工程有限公司 | A kind of totally-enclosed pair of negative-pressure cyclic ink feeding system of Digital ink-jet printer |
| US20210402789A1 (en) * | 2018-11-28 | 2021-12-30 | Neos S.R.L. | Ink supply system for digital printing device and digital printing device comprising said system |
| CN113260515A (en) * | 2018-12-20 | 2021-08-13 | 科迪华公司 | Printing material feed system |
| CN211416658U (en) * | 2019-12-10 | 2020-09-04 | 广州市科赛恩电气技术有限公司 | Ink supply circulating system of ink-jet printer |
| CN212400652U (en) * | 2020-03-19 | 2021-01-26 | 天津长荣数码科技有限公司 | Ink circulation system suitable for ink jet equipment |
| CN215284001U (en) * | 2021-06-11 | 2021-12-24 | 深圳市润天智数字设备股份有限公司 | Ink supply system |
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| Date | Code | Title | Description |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20220603 |
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| RJ01 | Rejection of invention patent application after publication |