CN114889330A

CN114889330A - Integrated ink jet printing ink box module and ink jet printer

Info

Publication number: CN114889330A
Application number: CN202210526023.0A
Authority: CN
Inventors: 王策鑫; 龚博; 李新寅
Original assignee: Guangdong Arojet Ink Jet Technology Co ltd
Current assignee: Guangdong Arojet Ink Jet Technology Co ltd
Priority date: 2022-05-16
Filing date: 2022-05-16
Publication date: 2022-08-12

Abstract

The invention discloses an integrated ink-jet printing ink box module, wherein a filter screen is arranged in a first cavity and used for eliminating bubbles in ink and filtering impurities in the ink, and the filtered ink flows to a second cavity through a communication port; in the second cavity, heating element can heat the ink, the ink after the heating is exported by a black valve, guarantee that the ink works with normal viscosity, effectively avoid the shower nozzle disconnected black, bad operating condition such as scattered black, set up the liquid level monitoring subassembly in the second cavity, the liquid level monitoring subassembly includes first level sensor and buffer component, the ink liquid level in the second cavity can be monitored to first level sensor, buffer component can cushion the unrestrained impact to first level sensor of black, guarantee the accuracy of first level sensor monitoring result, guarantee the job stabilization nature and the reliability of integrated ink jet printing box module. The invention also provides an ink-jet printer, which comprises the integrated ink-jet printing ink box module and effectively improves the ink-jet printing quality.

Description

Integrated ink jet printing ink box module and ink jet printer

Technical Field

The invention relates to the technical field of ink jet printing equipment and peripheral supporting facilities thereof, in particular to an integrated ink jet printing ink box module and an ink jet printer.

Background

The digital ink-jet printer prints materials such as paper boxes, color boxes and flexible packages, a secondary ink box for storing ink is required to be arranged above the spray head no matter siphon ink supply, negative pressure ink supply and circulating ink supply are carried out, liquid level signals are controlled in the secondary ink box to add ink, the ink adding leads the ink to move to generate bubbles, the spray head is broken when the bubbles exist in the ink, the printing quality is reduced, and the maintenance cost of the printer is increased.

When the ink-jet printer works normally, the ink-jet printer has higher requirements on the working temperature of ink, the viscosity of the ink is lowered when the temperature is too high, the viscosity of the ink is raised when the temperature is too low, the fluidity of the ink is lowered, and the ink discharging of the nozzle is lowered under the two conditions, so that the printing quality is influenced.

There are two kinds of digital ink jet printing modes of single pass and many pass on the market at present, no matter which kind of mode, the shower nozzle module removal can all be followed to the second grade ink horn, the ink can form black unrestrained in the second grade ink horn, especially the second grade ink horn volume is bigger in the broad width printing field, the performance is more obvious, black unrestrained accuracy that can influence liquid level detection, the stability of ink circuit can be influenced to the liquid level height of second grade ink horn, thereby lead to the shower nozzle to fall the china ink, the broken string, act as go-between the problem, lead to the printing effect variation, the printing quality reduces.

How to change the current situation that in the prior art, the secondary ink box of the ink jet printer influences the ink supply stability of the nozzle, which causes the problems of ink break, ink flying, white leakage and the like of the ink jet printer, thereby influencing the printing quality, becomes a problem to be solved urgently by the technical staff in the field.

Disclosure of Invention

The invention aims to provide an integrated ink-jet printing cartridge module and an ink-jet printer, which are used for solving the problems in the prior art, improving the working reliability of an ink cartridge and improving the ink-jet printing quality.

In order to achieve the purpose, the invention provides the following scheme: the invention provides an integrated ink-jet printing ink box module, which comprises an ink box body, wherein the ink box body can contain ink, and the ink box body comprises:

the ink dispenser comprises a first cavity, a second cavity and a liquid level sensor, wherein the first cavity is provided with an ink inlet which is communicated with an ink source, and a filter screen is arranged in the first cavity and can filter ink;

the first cavity is communicated with the second cavity through a communication port, and the ink inlet and the communication port are respectively positioned on two sides of the filter screen; a heating element and a liquid level monitoring assembly are arranged in the second cavity, the heating element can heat the ink, the liquid level monitoring assembly comprises a first liquid level sensor and a buffer element, the first liquid level sensor can monitor the liquid level of the ink, and the buffer element can buffer the impact of ink waves on the first liquid level sensor; the second cavity is connected with an ink outlet valve.

Preferably, the filtering precision of the filter screen is 5 μm.

Preferably, the integrated inkjet printing ink cartridge module further comprises a third cavity, and the top of the second cavity is communicated with the top of the third cavity through a reversing valve.

Preferably, a negative pressure valve and a circulating valve are connected to the third cavity, the negative pressure valve is communicated with the reversing valve through the third cavity, and the circulating valve is connected with a circulating pump;

and a second liquid level sensor is arranged in the third cavity.

Preferably, the ink inlet is located at the top of the first cavity, an ink inlet valve is arranged at the ink inlet, the ink inlet valve is communicated with the ink source, and the ink inlet is located at the top of the filter screen; and the bottom of the first cavity is also connected with a manual valve.

Preferably, the heating element includes a heating plate and a heat conduction block, the heating plate is disposed at the bottom of the second cavity, the heating plate can heat the ink, and the heat conduction block is disposed at the top of the heating plate.

Preferably, the heat conducting block is connected with a heat conducting plate, one end of the heat conducting plate is connected with the heat conducting block, and the other end of the heat conducting plate extends towards the top direction of the second cavity;

the number of the heat conduction plates is multiple, and the heat conduction plates are arranged at equal intervals and in parallel;

the heat conducting block and the heat conducting plate are both made of aluminum materials.

Preferably, a first temperature sensor and a second temperature sensor are arranged in the second cavity, the first temperature sensor is arranged at the bottom of the second cavity, the second temperature sensor is connected with the top of the second cavity and extends towards the bottom of the second cavity, and the second temperature sensor is arranged at the top of the heat-conducting block.

Preferably, the buffer element comprises two buffer plates, and the two buffer plates are symmetrically arranged by taking the first liquid level sensor as an axis;

the buffer board includes first section and second section, first section with the second section links to each other, first section with the top inner wall of ink horn body links to each other, the second section with the clearance has between the bottom inner wall of ink horn body, first section is plane platelike structure, first section perpendicular to the axis setting of intercommunication mouth, the second section is for the orientation the bellied cambered plate of first level sensor.

Preferably, the ink cartridge body includes a top cover, a body sidewall and a bottom plate, the top cover is disposed on the top of the body sidewall, the bottom plate is disposed on the bottom of the body sidewall, the first cavity and the second cavity are both located in a space enclosed by the top cover, the body sidewall and the bottom plate, the top cover is detachably connected to the body sidewall, the bottom plate is detachably connected to the body sidewall, and sealing elements are disposed between the top cover and the body sidewall and between the bottom plate and the body sidewall;

the number of the ink outlet valves is multiple.

The invention also provides an ink-jet printer which comprises the integrated ink-jet printing ink box module.

Compared with the prior art, the invention has the following technical effects:

according to the integrated ink box module for the ink jet printing, the filter screen is arranged in the first cavity and used for eliminating bubbles in ink and filtering impurities in the ink, and the filtered ink flows to the second cavity through the communicating port; in the second cavity, heating element can heat the ink, the ink after the heating is exported by a black valve, guarantee that the ink works with normal viscosity, effectively avoid the shower nozzle disconnected black, bad operating condition such as scattered black, set up the liquid level monitoring subassembly in the second cavity, the liquid level monitoring subassembly includes first level sensor and buffer component, the ink liquid level in the second cavity can be monitored to first level sensor, buffer component can cushion the unrestrained impact to first level sensor of black, guarantee the accuracy of first level sensor monitoring result, guarantee the job stabilization nature and the reliability of integrated ink jet printing box module. The invention also provides an ink-jet printer, which comprises the integrated ink-jet printing ink box module and effectively improves the ink-jet printing quality.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.

FIG. 1 is a schematic structural view of an integrated inkjet printing cartridge module according to the present invention;

FIG. 2 is a schematic view of a portion of the structure of an integrated inkjet printing cartridge module according to the present invention;

fig. 3 is a sectional structure diagram of the integrated inkjet printing cartridge module according to the present invention.

Wherein 100 is an integrated ink jet printing cartridge module;

the ink cartridge comprises an ink cartridge body 1, a top cover 101, a main body side wall 102, a bottom plate 103, a first cavity 2, a second cavity 3, a filter screen 4, a communication port 5, a heating element 6, a heating sheet 601, a heat conduction block 602, a heat conduction plate 603, a first liquid level sensor 7, a buffer element 8, a buffer plate 801, a first section 802, a second section 803, an ink outlet valve 9, a third cavity 10, a circulating valve 11, a reversing valve 12, a second liquid level sensor 13, an ink inlet valve 14, a manual valve 15 and a negative pressure valve 16.

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.

The invention aims to provide an integrated ink-jet printing cartridge module and an ink-jet printer, which are used for solving the problems in the prior art, improving the working reliability of the ink cartridge and improving the ink-jet printing quality.

In order to make the aforementioned objects, features and advantages of the present invention more comprehensible, the present invention is described in detail with reference to the accompanying drawings and the detailed description thereof.

Referring to fig. 1 to 3, fig. 1 is a schematic structural view of an integrated inkjet printing cartridge module of the present invention, fig. 2 is a schematic structural view of a part of the integrated inkjet printing cartridge module of the present invention, and fig. 3 is a schematic sectional structural view of the integrated inkjet printing cartridge module of the present invention.

The invention provides an integrated ink-jet printing ink box module 100 which comprises an ink box body 1, wherein the ink box body 1 can contain ink, the ink box body 1 comprises a first cavity 2 and a second cavity 3 which are communicated, the first cavity 2 is provided with an ink inlet, the ink inlet is communicated with an ink source, a filter screen 4 is arranged in the first cavity 2, and the filter screen 4 can filter the ink; the first cavity 2 is communicated with the second cavity 3 by a communication port 5, and the ink inlet and the communication port 5 are respectively positioned at two sides of the filter screen 4; a heating element 6 and a liquid level monitoring assembly are arranged in the second cavity 3, the heating element 6 can heat ink, the liquid level monitoring assembly comprises a first liquid level sensor 7 and a buffer element 8, the first liquid level sensor 7 can monitor the liquid level of the ink, and the buffer element 8 can buffer the impact of ink waves on the first liquid level sensor 7; the second chamber 3 is connected to an ink outlet valve 9.

The integrated ink box module 100 for ink jet printing of the invention is characterized in that a filter screen 4 is arranged in a first cavity 2 and is used for eliminating bubbles in ink and filtering impurities in the ink, the filtered ink flows to a second cavity 3 through a communicating port 5, a heating element 6 can heat the ink in the second cavity 3, the heated ink is output by an ink outlet valve 9 and is ensured to work at normal viscosity, bad working states such as ink break and ink scattering of a sprayer are effectively avoided, a liquid level monitoring assembly is arranged in the second cavity 3 and comprises a first liquid level sensor 7 and a buffer element 8, the first liquid level sensor 7 can monitor the liquid level of the ink in the second cavity 3, the buffer element 8 can buffer the impact of ink waves on the first liquid level sensor 7, the accuracy of the monitoring result of the first liquid level sensor 7 is ensured, and the working stability and reliability of the integrated ink box module 100 for ink jet printing are ensured, thereby improving the quality of ink jet printing.

In the present embodiment, the filtering precision of the filtering net 4 is 5 μm, the mesh is fine, and air bubbles can be effectively blocked from entering the lower part of the filtering net 4, and are prevented from entering the second cavity 3.

Wherein, integrated ink jet printing ink box module 100 still includes third cavity 10, and the top of second cavity 3 is linked together through switching-over valve 12 and the top of third cavity 10, and third cavity 10 is as overflowing black protection chamber, avoids the ink to spill over to the negative pressure bottle, and the negative pressure is unusual in the ink box that leads to producing phenomenons such as leaking the china ink.

In the present embodiment, the ink inlet is located at the top of the first cavity 2, the ink inlet is provided with an ink inlet valve 14, the ink inlet valve 14 is communicated with an ink source, the ink inlet is located at the top of the filter screen 4, the ink inlet valve 14 can select a two-position two-way normally closed electromagnetic valve, and in actual use, the ink inlet valve 14 is connected with an ink pump to ensure smooth input of ink; the bottom of the first cavity 2 is also connected with a manual valve 15, which is convenient for discharging liquid during cleaning.

It should be further noted that the third cavity 10 is connected with a negative pressure valve 16 and a circulating valve 11, the negative pressure valve 16 is communicated with the reversing valve 12 through the third cavity 10 to provide negative pressure for the second cavity 3, and the circulating valve 11 is connected with a circulating pump; a second liquid level sensor 13 is arranged in the third chamber 10. In this embodiment, the integrated inkjet printing cartridge module 100 further includes a controller, the negative pressure valve 16, the reversing valve 12, the circulating valve 11, the first liquid level sensor 7, and the second liquid level sensor 13 are all connected to the controller, when the first liquid level sensor 7 detects that there is no ink, the ink inlet valve 14 and the ink pump are opened, and the ink pump pumps ink until the ink lack signal disappears, and stops pumping ink; if the first liquid level sensor 7 has abnormal monitoring function, the ink in the second cavity 3 overflows into the third cavity 10, after the second liquid level sensor 13 monitors the liquid level, the ink pump stops pumping the ink, the ink inlet valve 14 is closed, and if the controller receives a normal negative pressure signal at the moment, the ink box normally supplies ink for the spray head; if the second liquid level sensor 13 monitors the liquid level and the controller receives an abnormal negative pressure signal, the ink outlet valve 9 and the negative pressure valve 16 are closed, the circulating valve 11 is opened, ink is drawn out until the second liquid level sensor 13 detects normal, the circulating valve 11 is closed, the negative pressure valve 16 is opened, and after the negative pressure signal is normal, the ink outlet valve 9 is opened to start normal operation. The controller can control 12 operating condition of switching-over valve, when the ink gun needs the malleation to wash, opens switching-over valve 12, realizes that positive negative pressure switches over, is the malleation in the second cavity 3, and after the washing, the controller closes switching-over valve 12, switches back the negative pressure in the second cavity 3, guarantees that second cavity 3 can normally supply ink for the shower nozzle. After the reversing valve 12 is closed, the negative pressure in the second cavity 3 returns to normal, and a waiting time is required, at this time, the ink outlet valve 9 needs to be closed first until the negative pressure signal is normal, and then the ink outlet valve 9 is opened, otherwise, the ink leakage of the nozzle can be caused because the negative pressure is abnormal and the ink outlet valve 9 is opened. In practical application, the negative pressure valve 16 can select a two-position two-way normally closed electromagnetic valve with one pagoda joint, the ink outlet valve 9 and the circulating valve 11 can select a two-position two-way normally closed electromagnetic valve with two pagoda joints, and the reversing valve 12 is a two-position three-way electromagnetic valve.

Specifically, the heating element 6 includes a heating plate 601 and a heat conduction block 602, the heating plate 601 is disposed at the bottom of the second cavity 3, the heating plate 601 can heat the ink, the heat conduction block 602 is disposed at the top of the heating plate 601, the heating plate 601 is disposed at the bottom of the ink cartridge body 1, and heat is conducted to the ink by the heat conduction block 602, so as to ensure uniform and stable heating of the ink.

In order to further improve the uniformity of heat conduction, the heat conduction block 602 is connected with a heat conduction plate 603, one end of the heat conduction plate 603 is connected with the heat conduction block 602, and the other end of the heat conduction plate 603 extends towards the top of the second cavity 3; the heat conducting plate 603 extends into the ink in the second cavity 3 to uniformly transfer heat to the ink, thereby avoiding the influence of uneven heating on the printing quality.

In other embodiments of the present invention, the number of the heat conducting plates 603 is multiple, and the heat conducting plates 603 are arranged in parallel at equal intervals, so that attention should be paid to the first liquid level sensor 7 and the heat conducting plates 603 to avoid interference, and the height of the heat conducting plate 603 at the lower part of the first liquid level sensor 7 can be properly set to be lower.

In order to improve the heat conduction efficiency, the heat conduction block 602 and the heat conduction plate 603 are made of aluminum, and in practical applications, other materials with large heat conduction coefficients may be selected to enhance the heat conduction capability of the heat conduction block 602 and the heat conduction plate 603.

More specifically, a first temperature sensor and a second temperature sensor are arranged in the second cavity 3, the first temperature sensor is arranged at the bottom of the second cavity 3 and can monitor the heating temperature of the heating element 6, and the second temperature sensor is connected with the top of the second cavity 3 and extends towards the bottom of the second cavity 3 and can be used for monitoring the temperature of the ink. In the present embodiment, the controller receives the temperature data obtained by monitoring the first temperature sensor and the second temperature sensor, and controls the heating sheet 601 to stably and accurately heat the ink through the calculation of the PID algorithm, so as to further improve the working stability of the integrated inkjet printing cartridge module 100 of the present invention.

Further, the buffer element 8 comprises two buffer plates 801, the number of the buffer plates 801 is two, and the two buffer plates 801 are symmetrically arranged by taking the first liquid level sensor 7 as an axis; the impact of ink waves on the first liquid level sensor 7 is buffered in a two-way mode, and the working reliability of the first liquid level sensor 7 is guaranteed. In other embodiments of the present invention, the number and arrangement of the buffer plates 801 may be set according to the structure of the ink cartridge body 1 and the ink flow direction, for example, the buffer plates 801 arranged in a circular shape may be set.

In this embodiment, buffer board 801 includes first section 802 and second section 803, first section 802 links to each other with the top inner wall of ink horn body 1, second section 803 has the clearance with the bottom inner wall of ink horn body 1 between, first section 802 is plane platelike structure, first section 802 perpendicular to intercommunication mouth 5's axis sets up, second section 803 is towards the bellied cambered plate of first level sensor 7, the cambered plate can further strengthen cushioning effect, and avoid the ink to splash and produce the bubble, buffer board 801's width is slightly narrower than the width of ink horn body 1, under the circumstances that does not influence the ink normal flow, avoid the ink to cause the impact to first level sensor 7 as far as possible, thereby guarantee first level sensor 7's monitoring result accuracy.

In order to facilitate the disassembly and assembly, the ink cartridge body 1 is of a split structure, the ink cartridge body 1 comprises a top cover 101, a body side wall 102 and a bottom plate 103, the top cover 101 is arranged at the top of the body side wall 102, the bottom plate 103 is arranged at the bottom of the body side wall 102, the first cavity 2 and the second cavity 3 are both located in the top cover 101, a space surrounded by the body side wall 102 and the bottom plate 103, the top cover 101 is detachably connected with the body side wall 102, the bottom plate 103 is detachably connected with the body side wall 102, the detachable connection can be realized by screws, the connection is firm, the disassembly and assembly are convenient, sealing elements are arranged between the top cover 101 and the body side wall 102 and between the bottom plate 103 and the body side wall 102, the sealing performance of the ink cartridge body 1 is improved, and air leakage and ink leakage are avoided. In practical application, the top cover 101 and the bottom plate 103 can be made of plastic materials, so that the efficient ink heating effect is ensured while heat is effectively prevented from being dissipated outwards.

In practical applications, the number of the ink outlet valves 9 may be set to be plural, and the number of the ink outlet valves 9 may be specifically set according to the requirement of the inkjet printing.

Furthermore, the present invention further provides an inkjet printer, which includes the integrated inkjet printing cartridge module 100, and ensures the working stability and reliability of the integrated inkjet printing cartridge module 100, thereby effectively improving the inkjet printing quality.

The principle and the implementation mode of the invention are explained by applying a specific example, and the description of the embodiment is only used for helping to understand the method and the core idea of the invention; meanwhile, for a person skilled in the art, according to the idea of the present invention, the specific embodiments and the application range may be changed. In summary, this summary should not be construed to limit the present invention.

Claims

1. The integrated ink-jet printing cartridge module is characterized by comprising a cartridge body, wherein the cartridge body can contain ink, and the cartridge body comprises communicated components:

the ink dispenser comprises a first cavity, a second cavity and a liquid storage tank, wherein the first cavity is provided with an ink inlet which is communicated with an ink source, and a filter screen is arranged in the first cavity and can filter ink;

2. The integrated inkjet printing cartridge module of claim 1, wherein: the top of the second cavity is communicated with the top of the third cavity through a reversing valve.

3. The integrated inkjet print cartridge module of claim 2, wherein: the third cavity is connected with a negative pressure valve and a circulating valve, the negative pressure valve is communicated with the reversing valve through the third cavity, and the circulating valve is connected with a circulating pump;

and a second liquid level sensor is arranged in the third cavity.

4. The integrated inkjet print cartridge module of claim 1, wherein: the ink inlet is positioned at the top of the first cavity, an ink inlet valve is arranged at the ink inlet and communicated with the ink source, and the ink inlet is positioned at the top of the filter screen; and the bottom of the first cavity is also connected with a manual valve.

5. The integrated inkjet print cartridge module of claim 1, wherein: the heating element comprises a heating plate and a heat conduction block, the heating plate is arranged at the bottom of the second cavity and can heat the ink, and the heat conduction block is arranged at the top of the heating plate.

6. The integrated inkjet print cartridge module of claim 5, wherein: the heat conducting block is connected with a heat conducting plate, one end of the heat conducting plate is connected with the heat conducting block, and the other end of the heat conducting plate extends towards the top direction of the second cavity body;

the quantity of heat-conducting plate is the polylith, the polylith heat-conducting plate equidistant, parallel arrangement.

7. The integrated inkjet print cartridge module of claim 5, wherein: the second cavity is internally provided with a first temperature sensor and a second temperature sensor, the first temperature sensor is arranged at the bottom of the second cavity, the second temperature sensor is connected with the top of the second cavity and extends towards the bottom of the second cavity, and the second temperature sensor is arranged at the top of the heat conducting block.

8. The integrated inkjet print cartridge module of claim 1, wherein: the buffer element comprises two buffer plates, and the two buffer plates are symmetrically arranged by taking the first liquid level sensor as an axis;

9. The integrated inkjet print cartridge module of claim 1, wherein: the ink box body comprises a top cover, a main body side wall and a bottom plate, the top cover is arranged at the top of the main body side wall, the bottom plate is arranged at the bottom of the main body side wall, the first cavity and the second cavity are both positioned in a space defined by the top cover, the main body side wall and the bottom plate, the top cover is detachably connected with the main body side wall, the bottom plate is detachably connected with the main body side wall, and sealing elements are arranged between the top cover and the main body side wall and between the bottom plate and the main body side wall;

the number of the ink outlet valves is multiple;

the filtering precision of the filter screen is 5 mu m.

10. An inkjet printer comprising an integrated inkjet printing cartridge module according to any one of claims 1 to 9.