CN114590031A - Double-negative-pressure ink circulation printer - Google Patents
Double-negative-pressure ink circulation printer Download PDFInfo
- Publication number
- CN114590031A CN114590031A CN202011406537.XA CN202011406537A CN114590031A CN 114590031 A CN114590031 A CN 114590031A CN 202011406537 A CN202011406537 A CN 202011406537A CN 114590031 A CN114590031 A CN 114590031A
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- ink
- negative pressure
- box
- printer
- circulation
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- 230000007246 mechanism Effects 0.000 claims abstract description 75
- 239000007921 spray Substances 0.000 claims abstract description 32
- 239000007788 liquid Substances 0.000 claims description 41
- 230000001105 regulatory effect Effects 0.000 claims description 13
- 238000007872 degassing Methods 0.000 claims description 5
- 230000009977 dual effect Effects 0.000 claims description 3
- 239000000976 ink Substances 0.000 description 196
- 238000001914 filtration Methods 0.000 description 6
- 230000005484 gravity Effects 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- 230000001276 controlling effect Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 238000007639 printing Methods 0.000 description 1
- 238000005086 pumping Methods 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
- B41J2/175—Ink supply systems ; Circuit parts therefor
- B41J2/17503—Ink cartridges
- B41J2/17506—Refilling of the cartridge
-
- 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
- B41J2/18—Ink recirculation systems
- B41J2/185—Ink-collectors; Ink-catchers
-
- 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
- B41J29/00—Details of, or accessories for, typewriters or selective printing mechanisms not otherwise provided for
- B41J29/46—Applications of alarms, e.g. responsive to approach of end of line
Landscapes
- Ink Jet (AREA)
Abstract
The invention discloses a double-negative-pressure ink circulation printer which comprises a primary ink barrel, a secondary ink box, a spray head and a circulation ink box, wherein a first ink conveying mechanism for conveying ink to the secondary ink box is connected between the primary ink barrel and the secondary ink box; the second-stage ink box is arranged above the spray head and connected with the first negative pressure mechanism, and the circulating ink box is connected with the second negative pressure mechanism used for sucking ink at the spray head. The double-negative-pressure ink circulation printer can reduce the phenomenon of broken needles of the spray head and ensure the normal operation of the printer.
Description
Technical Field
The invention relates to the field of printers, in particular to a double-negative-pressure ink circulation printer
Background
In the application of a digital printer, ink can be deposited, and the ink can cause a plug after being stored for a long time or accumulated for a long time, so that the spray head can be seriously scrapped. There is also a case where the ink is not used for a short time (for example, for one night or one or two days), bubbles are precipitated from the ink due to external temperature change, and if the ink is not circulated, the ink is broken. The broken needle refers to that when air exists in the ink in the nozzle or the dissolved oxygen is too high, the nozzle can generate partial air instead of ink drops which are sprayed from the nozzle, and the field is called broken needle. Therefore, the ink must be circulated to reduce settling and to discharge air bubbles. In the prior art, an ink supply pump is adopted by a printer to pump ink in an ink box I to be conveyed to an ink box II, the ink is conveyed to a two-way nozzle by the ink box to be printed, the ink at the nozzle is conveyed to the ink box II through another ink supply pump, the ink supply pump has large disturbance to the nozzle, and the nozzle is easy to generate bubbles to break a needle.
Therefore, how to avoid the broken pin of the printer becomes a technical problem to be solved by those skilled in the art.
Disclosure of Invention
The invention aims to provide a double-negative-pressure ink circulation printer, which is stable in ink circulation, can reduce the phenomenon of broken needles of a spray head and ensures the normal operation of the printer.
In order to achieve the purpose, the invention provides a double-negative-pressure ink circulation printer which comprises a primary ink barrel, a secondary ink box, a spray head and a circulation ink box, wherein a first ink conveying mechanism for conveying ink to the secondary ink box is connected between the primary ink barrel and the secondary ink box;
the second-stage ink box is arranged above the spray head and connected with the first negative pressure mechanism, and the circulating ink box is connected with the second negative pressure mechanism used for sucking ink at the spray head.
Optionally, the first negative pressure mechanism includes a first negative pressure source communicated with the secondary ink cartridge, a first pressure regulating valve connected between the first negative pressure source and the secondary ink cartridge, and a first negative pressure gauge.
Optionally, the second negative pressure mechanism includes a second negative pressure source communicated with the circulation ink box, a second pressure regulating valve connected between the second negative pressure source and the circulation ink box, and a second negative pressure gauge.
Optionally, the first inking mechanism and the second inking mechanism are both ink supply pumps.
Optionally, a first liquid level sensor is arranged in the secondary ink box, and the first liquid level sensor is used for controlling the first inking mechanism to operate and maintaining the liquid level of the secondary ink box within a preset range.
Optionally, a second liquid level sensor is arranged in the circulating ink box, and the second liquid level sensor is used for controlling the second inking mechanism to operate and maintaining the liquid level of the circulating ink box within a preset range.
Optionally, the secondary ink cartridge is disposed higher than the primary ink tank, and a check valve is connected between the secondary ink cartridge and the primary ink tank.
Optionally, the primary ink barrel is provided with a liquid level alarm mechanism, and when the liquid level in the primary ink barrel is lower than a warning line, the liquid level alarm mechanism gives an alarm.
Optionally, a filtering device is disposed between the first inking mechanism and the second-stage ink cartridge, and a degassing device is disposed between the second-stage ink cartridge and the nozzle.
Optionally, a solenoid valve is arranged between the circulating ink box and the primary ink barrel, and the solenoid valve is closed when the second inking mechanism stops operating.
Compared with the background technology, the ink circulation path of the double negative pressure ink circulation printer provided by the invention is as follows: the first-level ink barrel, the first inking mechanism, the second-level ink box, the spray head, the circulating ink box, the second inking mechanism and the first-level ink barrel are stable and reliable in circulation. The secondary ink box is arranged above the spray head, the ink is conveyed to the spray head under the action of gravity for printing, the secondary ink box is provided with a first negative pressure mechanism, the gravity of the ink is balanced by the first negative pressure mechanism, and the speed of the ink flowing out of the spray head is adjusted; the first negative pressure mechanism and the second negative pressure mechanism can reduce bubbles in the secondary ink box and the circulating ink box and reduce bubbles in the circulating ink; the ink in the circulating ink box is conveyed to the first-stage ink barrel through the second ink conveying mechanism, and the disturbance of the second ink conveying mechanism to the spray head is relieved due to the arrangement of the circulating ink box.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.
Fig. 1 is a schematic diagram of a dual negative pressure ink circulation printer according to an embodiment of the invention.
Wherein:
1-first-stage ink barrel, 2-one-way valve, 3-first inking mechanism, 4-second-stage ink box, 41-first negative pressure source, 42-first pressure regulating valve, 43-first negative pressure meter, 44-first liquid level sensor, 5-filtering device, 6-degasser, 7-sprayer, 8-circulation ink box, 81-second negative pressure source, 82-second pressure regulating valve, 83-second negative pressure meter, 84-second liquid level sensor, 9-second inking mechanism and 10-electromagnetic valve.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In order that those skilled in the art will better understand the disclosure, the invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
Referring to fig. 1, fig. 1 is a schematic view of a dual negative pressure ink circulation printer according to an embodiment of the invention.
The double negative pressure ink circulation printer comprises a primary ink barrel 1, a secondary ink box 4 and a circulation ink box 8, wherein the primary ink barrel 1 is used as an ink source, ink is insufficient, ink needs to be filled into the primary ink barrel 1 to ensure the ink circulation of the printer, the ink in the primary ink barrel 1 is conveyed to the secondary ink box 4 through a first ink conveying mechanism 3, the secondary ink box 4 is arranged above a spray head 7, the ink is conveyed to the spray head 7 under the action of gravity to be printed, the ink flowing through the spray head 7 is conveyed to the circulation ink box 8 under the action of a second negative pressure mechanism, and then the ink is conveyed to the primary ink barrel 1 through a second ink conveying mechanism 9.
The second-stage ink box 4 is provided with a first negative pressure mechanism, and the gravity of the ink is balanced by the first negative pressure mechanism, so that the flowing speed of the ink from the nozzle 7 is adjusted; the circulating ink box 8 is used for recovering the ink flowing through the spray head 7, and the ink flowing through the spray head 7 is stably pumped back to the circulating ink box 8 by means of the differential pressure generated by the second negative pressure mechanism, so that the disturbance on the work of the spray head 7 is reduced. The ink in the circulating ink box 8 is conveyed to the primary ink barrel 1 through the second ink conveying mechanism 9, and the disturbance of the second ink conveying mechanism 9 to the spray head 7 is relieved by the arrangement of the circulating ink box 8. Even environmental problem changes, also can adjust the vacuum of first negative pressure mechanism and second negative pressure mechanism and satisfy the ink circulation requirement, and through negative pressure drive ink circulation, avoided the production of useless ink and bubble, the setting of first negative pressure mechanism and second negative pressure mechanism can in time be discharged the bubble in second grade ink horn 4 and the circulation ink horn 8, reduces the bubble in the circulation ink, avoids the broken needle of printer.
In the specific embodiment provided by the present invention, the first negative pressure mechanism includes a first negative pressure source 41 communicated with the secondary ink tank 4 through a pipe, and the first negative pressure source 41 may specifically adopt a vacuum pump. The pipeline is provided with a first pressure regulating valve 42 and a first negative pressure gauge 43, when the density of the ink changes due to the change of the ambient temperature, the speed of the ink flowing to the nozzle 7 can be regulated and controlled by adjusting the vacuum degree of the first negative pressure source 41 and the opening degree of the first pressure regulating valve 42, the vacuum degree of the secondary ink box 4 can be observed in real time by the arrangement of the first negative pressure gauge 43, and the first pressure regulating valve 42 adopts a precise pressure regulating valve and can regulate the pressure within the range of +/-0.1 KPa.
Correspondingly, the second negative pressure mechanism comprises a second negative pressure source 81 communicated with the circulating ink box 8 through a pipeline, the second negative pressure source 81 adopts a vacuum pump or other vacuum pumping equipment, a second pressure regulating valve 82 is arranged between the second negative pressure source 81 and the pipeline of the circulating ink box 8, and a second negative pressure gauge 83 is also arranged. The vacuum degree of the circulating ink box 8 can be adjusted by changing the vacuum degree of the second negative pressure source 81 and the opening degree of the second pressure regulating valve 82, the pressure difference between the circulating ink box 8 and the spray head 7 is changed, stable suction of the printed ink is realized, the work disturbance of the spray head 7 is avoided, and bubbles are prevented from being generated.
In the above embodiment, the first inking mechanism 3 and the second inking mechanism 9 both use ink supply pumps, the first inking mechanism 3 transfers the ink in the primary ink tank 1 to the secondary ink tank 4, and the first negative pressure mechanism is arranged to adjust the speed of the ink flowing to the nozzle 7, facilitate the escape of bubbles transferred to the secondary ink tank 4, and reduce the bubble content in the circulating ink. Because the installation position of the second ink box 4 in the printer is higher than the first ink barrel 1, in order to prevent the ink in the second ink box 4 from flowing back to the first ink barrel 1 when the first inking mechanism 3 is not in operation, a one-way valve 2 is also arranged between the first ink barrel 1 and the second ink box 4, and the one-way valve 2 only allows the ink in the first ink barrel 1 to flow to the second ink box 4 in one way. The check valve 2 may be specifically provided between the first inking mechanism 3 and the primary ink tank 1.
Preferably, in order to ensure normal ink supply of the nozzle 7 during the ink circulation process, a first liquid level sensor 44 is further arranged in the secondary ink tank 4, the first liquid level sensor 44 is used for detecting the liquid level in the secondary ink tank 4 in real time and transmitting a liquid level signal to a control mechanism of the first ink conveying mechanism 3, the control mechanism controls the operation of the first ink conveying mechanism 3 according to the liquid level of the secondary ink tank 4, the liquid level of the secondary ink tank 4 is maintained within a preset range, and normal ink supply and a stable ink supply speed of the nozzle 7 are ensured. Specifically, when the first liquid level sensor 44 detects that the liquid level of the secondary ink tank 4 is lower than the lowest value of the preset range, the first ink conveying mechanism 3 is controlled to start to operate, and the ink in the primary ink barrel 1 is conveyed to the secondary ink tank 4; when the liquid level in the secondary ink tank 4 rises and reaches the highest value of the preset range, the first liquid level sensor 44 controls the second inking mechanism 9 to stop running until the liquid level of the secondary ink tank 4 falls again.
The second liquid level sensor 84 is arranged in the circulating ink box 8, and the second liquid level sensor 84 is used for controlling the second inking mechanism 9 to maintain the liquid level in the circulating ink box 8 within a preset range, so that the circulating ink box 8 can stably suck the ink at the nozzle 7. Specifically, when the liquid level in the circulating ink tank 8 exceeds the highest value of the preset range, the second inking mechanism 9 starts to operate, the ink in the circulating ink tank 8 is conveyed to the primary ink tank 1, and when the liquid level in the circulating ink tank 8 falls below the lowest value of the preset range, the second inking mechanism 9 stops operating.
As the second negative pressure mechanism sucks the ink at the head 7, the liquid level in the circulating ink tank 8 rises again, and so on. An electromagnetic valve 10 is arranged between the circulating ink box 8 and the primary ink barrel 1, and the electromagnetic valve 10 is opened only when the second inking mechanism 9 operates; when the second inking mechanism 9 stops operating, the electromagnetic valve 10 is closed, which is beneficial to maintaining the vacuum degree in the circulating ink box 8 and keeping the stable suction of the ink at the nozzle 7, thereby reducing the energy consumption of the second negative pressure mechanism.
Waste ink and air bubbles are inevitably generated during the ink circulation process, and in order to ensure the normal operation of the spray head 7, the double negative pressure ink circulation printer provided by the invention also comprises a filtering device 5 and a degassing device 6. A filtering device 5 is arranged between the first inking mechanism 3 and the secondary ink box 4 to ensure the purity of the ink entering the secondary ink box 4; a filtering device 5 and a degassing device 6 are arranged between the secondary ink box 4 and the spray head 7, so that waste ink is prevented from blocking the spray head 7, and the phenomenon of needle breakage at the spray head 7 is reduced. The arrangement of the filtration device 5 and the degassing device 6 can be referred to the prior art.
Further, the primary ink tank 1 serves as an ink source, and as the number of times of circulation increases and ink is consumed, the liquid level in the primary ink tank 1 will inevitably decrease while the normal liquid levels of the secondary ink tank 4 and the circulation ink tank 8 are maintained, and the normal operation of the printer will be affected if the liquid level decreases below a warning line and ink is not replenished in time. This application still sets up liquid level alarm mechanism in one-level china ink bucket 1, and liquid level alarm mechanism includes third liquid level detector and the alarm module who is connected with third level sensor. Detect the liquid level of one-level china ink bucket 1 through third level sensor, send liquid level signal for alarm module when the liquid level is less than the warning liquid level, add black by alarm module suggestion, alarm module specifically can be the touch-control operating panel of printer, also can be for setting up the warning light in printer one side.
It is noted that, in this specification, relational terms such as first and second, and the like are used solely to distinguish one entity from another entity without necessarily requiring or implying any actual such relationship or order between such entities.
The double negative pressure ink circulation printer provided by the invention is described in detail above. The principles and embodiments of the present invention are explained herein using specific examples, which are presented only to assist in understanding the method and its core concepts. It should be noted that, for those skilled in the art, without departing from the principle of the present invention, it is possible to make various improvements and modifications to the present invention, and those improvements and modifications also fall within the scope of the claims of the present invention.
Claims (10)
1. A double negative pressure ink circulation printer is characterized by comprising a primary ink barrel (1), a secondary ink box (4), a spray head (7) and a circulation ink box (8), wherein a first ink conveying mechanism (3) for conveying ink to the secondary ink box (4) is connected between the primary ink barrel (1) and the secondary ink box (4), and a second ink conveying mechanism (9) for conveying ink to the primary ink barrel (1) is connected between the circulation ink box (8) and the primary ink barrel (1);
the secondary ink box (4) is arranged above the spray head (7), the secondary ink box (4) is connected with a first negative pressure mechanism, and the circulating ink box (8) is connected with a second negative pressure mechanism used for sucking ink at the spray head (7).
2. The printer according to claim 1, wherein the first negative pressure mechanism includes a first negative pressure source (41) communicating with the secondary ink tank (4), a first pressure regulating valve (42) connected between the first negative pressure source (41) and the secondary ink tank (4), and a first negative pressure gauge (43).
3. The printer of claim 2, wherein the second negative pressure mechanism comprises a second negative pressure source (81) communicating with the circulation tank (8), a second pressure regulating valve (82) connected between the second negative pressure source (81) and the circulation tank (8), and a second negative pressure gauge (83).
4. A dual negative pressure ink circulation printer according to claim 3, wherein the first inking mechanism (3) and the second inking mechanism (9) are both ink supply pumps.
5. The printer of claim 3, wherein a first level sensor (44) is provided in the secondary cartridge (4), the first level sensor (44) being configured to control the operation of the first inking mechanism (3) and to maintain the level of the secondary cartridge (4) within a predetermined range.
6. The printer of claim 3, wherein a second level sensor (84) is provided in the circulating ink tank (8), the second level sensor (84) being configured to control the operation of the second inking mechanism (9) and to maintain the level of the circulating ink tank (8) within a predetermined range.
7. The printer according to any one of claims 1 to 6, wherein the secondary ink tank (4) is arranged higher than the primary ink tank (1), and a check valve (2) is connected between the secondary ink tank (4) and the primary ink tank (1).
8. The printer of claim 7, wherein the primary ink tank (1) is provided with a liquid level alarm mechanism, and when the liquid level in the primary ink tank (1) is lower than a warning line, the liquid level alarm mechanism alarms.
9. The printer according to any of claims 1 to 6, wherein a filter device (5) is provided between the first inking unit (3) and the secondary ink container (4) and between the secondary ink container (4) and the spray head (7), and a degassing device (6) is provided between the secondary ink container (4) and the spray head (7).
10. The printer according to claim 9, wherein a solenoid valve (10) is provided between the circulating ink tank (8) and the primary ink tank (1), the solenoid valve (10) being closed when the second inking mechanism (9) stops operating.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011406537.XA CN114590031A (en) | 2020-12-04 | 2020-12-04 | Double-negative-pressure ink circulation printer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011406537.XA CN114590031A (en) | 2020-12-04 | 2020-12-04 | Double-negative-pressure ink circulation printer |
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| Publication Number | Publication Date |
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| CN114590031A true CN114590031A (en) | 2022-06-07 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202011406537.XA Pending CN114590031A (en) | 2020-12-04 | 2020-12-04 | Double-negative-pressure ink circulation printer |
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Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN205498353U (en) * | 2015-11-20 | 2016-08-24 | 深圳市润天智数字设备股份有限公司 | China ink water circulating system |
| CN206983531U (en) * | 2017-07-18 | 2018-02-09 | 昆山海斯电子有限公司 | The miniature feeder that can be placed in ink-jet printer |
| CN207044931U (en) * | 2017-07-04 | 2018-02-27 | 郑州奥德利数控设备有限公司 | A kind of printer ink-providing device |
| CN207617330U (en) * | 2017-12-15 | 2018-07-17 | 深圳市铂曼科技有限公司 | A kind of ink feeding system of printer |
| CN110978799A (en) * | 2019-12-23 | 2020-04-10 | 南通东川数码科技有限公司 | Be applied to stable two negative pressure circulation systems of beating of printer head of digital printing |
| CN211075163U (en) * | 2019-08-23 | 2020-07-24 | 西斯特姆（中国）科技有限公司 | Improved gas circuit system of digital ink-jet printing machine |
| CN111746124A (en) * | 2020-06-10 | 2020-10-09 | 深圳圣德京粤科技有限公司 | Circulating ink supply system |
| CN214001017U (en) * | 2020-12-04 | 2021-08-20 | 深圳市润天智数字设备股份有限公司 | Double-negative-pressure ink circulation printer |
-
2020
- 2020-12-04 CN CN202011406537.XA patent/CN114590031A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN205498353U (en) * | 2015-11-20 | 2016-08-24 | 深圳市润天智数字设备股份有限公司 | China ink water circulating system |
| CN207044931U (en) * | 2017-07-04 | 2018-02-27 | 郑州奥德利数控设备有限公司 | A kind of printer ink-providing device |
| CN206983531U (en) * | 2017-07-18 | 2018-02-09 | 昆山海斯电子有限公司 | The miniature feeder that can be placed in ink-jet printer |
| CN207617330U (en) * | 2017-12-15 | 2018-07-17 | 深圳市铂曼科技有限公司 | A kind of ink feeding system of printer |
| CN211075163U (en) * | 2019-08-23 | 2020-07-24 | 西斯特姆（中国）科技有限公司 | Improved gas circuit system of digital ink-jet printing machine |
| CN110978799A (en) * | 2019-12-23 | 2020-04-10 | 南通东川数码科技有限公司 | Be applied to stable two negative pressure circulation systems of beating of printer head of digital printing |
| CN111746124A (en) * | 2020-06-10 | 2020-10-09 | 深圳圣德京粤科技有限公司 | Circulating ink supply system |
| CN214001017U (en) * | 2020-12-04 | 2021-08-20 | 深圳市润天智数字设备股份有限公司 | Double-negative-pressure ink circulation printer |
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