CN111319360B - Ink cartridge and ink cartridge control system - Google Patents
Ink cartridge and ink cartridge control system Download PDFInfo
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- CN111319360B CN111319360B CN201811545003.8A CN201811545003A CN111319360B CN 111319360 B CN111319360 B CN 111319360B CN 201811545003 A CN201811545003 A CN 201811545003A CN 111319360 B CN111319360 B CN 111319360B
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- 239000007788 liquid Substances 0.000 claims abstract description 99
- 238000006073 displacement reaction Methods 0.000 claims abstract description 9
- 238000005192 partition Methods 0.000 claims description 28
- 239000007924 injection Substances 0.000 claims description 5
- 238000002347 injection Methods 0.000 claims description 5
- 238000002955 isolation Methods 0.000 claims 3
- 230000008901 benefit Effects 0.000 abstract description 4
- 238000005516 engineering process Methods 0.000 abstract description 3
- 230000002542 deteriorative effect Effects 0.000 abstract 1
- 125000006850 spacer group Chemical group 0.000 description 21
- 229910001338 liquidmetal Inorganic materials 0.000 description 14
- 238000010586 diagram Methods 0.000 description 11
- 238000004891 communication Methods 0.000 description 6
- 238000004519 manufacturing process Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 238000007789 sealing Methods 0.000 description 4
- 230000008859 change Effects 0.000 description 3
- 230000001105 regulatory effect Effects 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 230000001276 controlling effect Effects 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 230000006866 deterioration Effects 0.000 description 2
- 238000007599 discharging Methods 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 238000007254 oxidation reaction Methods 0.000 description 2
- 238000007639 printing Methods 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 230000001133 acceleration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000009795 derivation Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000008030 elimination Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 239000002861 polymer material Substances 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
- 238000012795 verification Methods 0.000 description 1
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
- B41J2/17513—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
- B41J2/17556—Means for regulating the pressure in the cartridge
Landscapes
- Ink Jet (AREA)
Abstract
本发明提供了一种墨盒及墨盒控制系统，涉及打印机构件及控制技术领域。墨盒包括壳体，壳体的内部具有容纳墨水的储液腔室；储液腔室包括底部连通的第一腔室和第二腔室；第一腔室内设有隔离件，将第一腔室分隔成第一气压腔和储液腔，第一气压腔和储液腔通过隔离件在第一腔室内的变形或位移平衡两个腔内的压力；第二腔室的上部具有用以维持第二腔室内液位高度的第二气压腔；该墨盒具有维持出墨量稳定，避免墨水与气体接触，防止墨水发生变质的优势。
The present invention provides an ink cartridge and an ink cartridge control system, which relates to the field of printer components and control technology. The ink cartridge includes a shell, and the inside of the shell has a liquid storage chamber for accommodating ink; the liquid storage chamber includes a first chamber and a second chamber connected at the bottom; an isolating member is provided in the first chamber to separate the first chamber into a first air pressure chamber and a liquid storage chamber, and the first air pressure chamber and the liquid storage chamber balance the pressure in the two chambers through the deformation or displacement of the isolating member in the first chamber; the upper part of the second chamber has a second air pressure chamber for maintaining the liquid level in the second chamber; the ink cartridge has the advantages of maintaining a stable ink output, avoiding contact between ink and gas, and preventing the ink from deteriorating.
Description
Technical Field
The invention belongs to the technical field of printer components and control, and particularly relates to an ink box and an ink box control system.
Background
With the continuous progress of the printed electronic technology, the conductive fluid represented by liquid metal is generated, so that the printed wire becomes possible to manufacture the liquid metal flexible electronic circuit, the traditional PCB hard electronic circuit manufacturing mode is changed, and the electronic circuit manufacturing time and cost are greatly reduced. The liquid metal printing technology has the unique advantage of fast manufacturing of electronic devices such as flexible circuits, PCB printed circuit boards, antennas and the like, and has very wide application prospect.
On one hand, the existing ink box control mainly uses air as negative pressure control gas in the ink box, and stable ink discharge of liquid metal ink in the ink box is kept under the action of negative pressure, but because the liquid metal is extremely easy to perform oxidation reaction with the air, oxide impurities are generated, normal ink content is consumed, the ink discharge efficiency and printing effect of the ink are affected to a certain extent, and particularly when the ink box shakes, the contact surface between the liquid metal and the air is caused, so that excessive oxide is formed, the deterioration of the ink is aggravated, and the ink discharge blockage is easy to form.
On the other hand, the ink discharge control of the existing liquid metal printer mainly utilizes the combination of the dead weight of the liquid metal and the negative pressure to control the ink discharge amount, and the preset ink discharge amount is maintained under the action of the negative pressure because the ink height is in an initial state at the beginning, but as the ink is reduced, the negative pressure value in the ink cavity is continuously increased, so that the ink discharge amount of the ink box cannot be continuously maintained in a desired state, and the ink discharge amount is reduced or even the ink is broken.
Disclosure of Invention
Accordingly, an object of the present invention is to provide an ink cartridge to solve the problems of easy oxidation and unstable ink discharge of the ink in the ink cartridge in the prior art.
In some illustrative embodiments, the ink cartridge comprises a housing having a liquid storage chamber containing ink therein, the liquid storage chamber comprising a first chamber and a second chamber in communication at a bottom, a spacer disposed within the first chamber separating the first chamber into a first pneumatic chamber and a liquid storage chamber, the first pneumatic chamber and the liquid storage chamber balancing pressures within the two chambers by deformation or displacement of the spacer within the first chamber, an upper portion of the second chamber having a second pneumatic chamber to maintain a liquid level height within the second chamber.
In some alternative embodiments, the spacer is an elastic oxygen-isolating member which is attached to the ink liquid level, and the first chamber is internally provided with an assembling structure for fixing the elastic oxygen-isolating member, and the edge of the elastic oxygen-isolating member is fixed on the assembling structure.
In some alternative embodiments, the spacer is a piston body that engages the ink level, and the piston body forms a clearance fit with the inner wall of the first chamber.
In some optional embodiments, the partition is one or more piston bodies attached to the ink liquid level, a baffle structure is arranged in the middle of the first chamber and divides the middle of the first chamber into partition spaces corresponding to the number of the piston bodies, two ends of the partition spaces are respectively communicated with two ends of the first chamber separated by the baffle structure, and one or more piston bodies form clearance fit with inner walls of the corresponding partition spaces.
In some alternative embodiments, the ink cartridge further comprises a limiting structure for limiting the displacement distance of the piston body between the corresponding partitions.
In some alternative embodiments, the distance between the inner walls of the first chamber adjacent to and opposite to any one of the openings at the two ends of the partition is smaller than the thickness of the piston body, and the limiting structure of the piston body is formed by the ends of the openings at the two ends of the partition.
In some alternative embodiments, the shell is provided with a first air port communicated with the first air pressure cavity and a liquid port communicated with the liquid storage cavity, wherein the first air port is positioned above the liquid level, and the liquid port is positioned below the liquid level
In some alternative embodiments, a liquid filling port is formed in the housing and is in communication with the liquid storage cavity of the first chamber, and the liquid filling port is located above the liquid level.
In some alternative embodiments, a second port is provided on the housing in communication with a second pneumatic chamber of the second chamber.
In some alternative embodiments, a printhead is connected to a fluid port on the housing.
The invention provides an ink box, which can maintain the basic stability of the ink liquid level in a second chamber by utilizing the air pressure in the second air pressure chamber through a closed second air pressure chamber formed in the second chamber, so as to avoid the problem that the ink is influenced by the huge change of the hydraulic pressure at a liquid port, and on the other hand, the ink can be effectively prevented from being contacted with air by separating the first air pressure chamber from the liquid storage chamber by a deformable/displaceable separator, and the phenomenon that the ink is deteriorated is prevented.
Another object of the present invention is to provide an ink cartridge control system to solve the technical problems of the prior art.
In some illustrative embodiments, the ink box control system comprises the ink box, a pressure sensor and a pneumatic control system, wherein the pressure sensor is positioned in a liquid storage cavity of the ink box and used for detecting a pressure value in the liquid storage cavity, an output end of the pneumatic control system for providing control air pressure outwards is communicated with a first air port of the ink box and used for regulating and controlling the air pressure value in the liquid storage cavity, and the pressure sensor, the pneumatic control system and the preset pressure value jointly form pressure closed-loop control of the ink box.
The invention provides an ink box control system, which is provided with the ink box, so that the control system has the advantages of the ink box in all directions, and the ink outlet quantity of the ink box can be accurately maintained to be always constant by closed-loop control of the pressure in the cavity formed by a pressure sensor, a pneumatic control system and a preset pressure value.
Drawings
FIG. 1 is a schematic illustration of an embodiment of the present invention prior to filling of an ink cartridge;
FIG. 2 is a schematic illustration of an embodiment of the present invention after filling of an ink cartridge;
FIG. 3 is a schematic diagram of a second embodiment of an ink cartridge;
FIG. 4 is a schematic diagram III of an ink cartridge according to an embodiment of the present invention;
FIG. 5 is a schematic diagram of a fourth embodiment of an ink cartridge;
FIG. 6 is a schematic diagram of an ink cartridge according to an embodiment of the present invention;
FIG. 7 is a schematic diagram of an ink cartridge according to an embodiment of the present invention;
FIG. 8 is a schematic view of a baffle structure according to an embodiment of the present invention;
FIG. 9 is a second schematic structural view of a baffle structure according to an embodiment of the present invention;
FIG. 10 is a schematic diagram of a control system of an ink cartridge according to an embodiment of the present invention;
FIG. 11 is a schematic diagram of the structure of the ink cartridge control system before ink discharge in an embodiment of the present invention;
Fig. 12 is a schematic diagram of the ink cartridge control system according to the embodiment of the present invention after ink is discharged.
Detailed Description
The following description and the drawings sufficiently illustrate specific embodiments of the invention to enable those skilled in the art to practice them. Other embodiments may involve structural, logical, electrical, process, and other changes. The embodiments represent only possible variations. Individual components and functions are optional unless explicitly required, and the sequence of operations may vary. Portions and features of some embodiments may be included in, or substituted for, those of others. The scope of embodiments of the invention encompasses the full ambit of the claims, as well as all available equivalents of the claims. These embodiments of the invention may be referred to herein, individually or collectively, by the term "invention" merely for convenience and without intending to voluntarily limit the scope of this application to any single invention or inventive concept if more than one is in fact disclosed.
It should be noted that, all the technical features in the embodiments of the present invention may be combined with each other without conflict.
The invention provides an ink box, in particular to an ink box, as shown in fig. 1-2, wherein fig. 1 is a schematic diagram of a structure before ink filling of the ink box in the embodiment of the invention, fig. 2 is a schematic diagram of a structure after ink filling of the ink box in the embodiment of the invention, 100 comprises a shell 101, a liquid storage cavity 102 for containing ink 300 is arranged in the shell 101, the liquid storage cavity 102 comprises a first cavity 103 and a second cavity 104 which are communicated with each other at the bottom, a partition piece 105 is arranged in the first cavity 103, the partition piece 105 divides the first cavity 103 into a first air pressure cavity 106 and a liquid storage cavity 107, the pressure relationship between the first air pressure cavity 106 and the liquid storage cavity 107 is balanced by deformation or displacement of the partition piece 105 in the first cavity 103, a second air pressure cavity 108 for maintaining the liquid level height in the second cavity 104 is arranged at the upper part of the second cavity 104, besides, a first air port 109 communicated with the first air pressure cavity 106 and a liquid port 110 communicated with the cavity 102 are arranged on the shell 101, the first air port 109 is arranged above the liquid level, and the liquid storage cavity 110 is arranged below the liquid level. Preferably, the volume of the first chamber 103 is larger than the volume of the second chamber 104.
As shown in fig. 3, the housing 101 in this embodiment may be formed by splicing an upper housing part and a lower housing part, and the upper housing part 101a and the lower housing part 101b may be separated or combined as required, where the detachable structure of the housing 101 facilitates the assembly of some structures located in the housing 101, such as the spacer 105. In other embodiments, the housing 101 may also have a left-right combined structure, a symmetrical or asymmetrical combined structure, or a multi-part combined structure with 2 parts or more than 2 parts. In some embodiments, the removable structure of the housing 101 may also be used for inking of ink.
Preferably, in this embodiment, the housing 101 may be formed by splicing an upper housing and a lower housing, wherein the joint is located at the middle upper portion of the housing 101, and the structure makes the cavity of the lower housing larger, so that the ink can be stored more conveniently, and the upper housing can be used as a cover of the lower housing.
As shown in fig. 1-3, the spacer 105 in the embodiment of the present invention may be horizontally disposed in the first chamber 103, and the deformation/displacement direction of the spacer 105 is a vertical direction, as shown in fig. 4, the spacer 105 may also be vertically disposed in the first chamber 103, and the deformation/displacement direction of the spacer 105 is a horizontal direction. In addition, the partition 105 may be disposed in the first chamber 103 with a diagonal line at an angle to the horizontal or vertical direction.
The first port 109 on the housing 101 is configured to be coupled to an output of the pneumatic control system, such that the pneumatic pressure in the first pneumatic chamber 106 in the housing 101 is controlled by the pneumatic control system 200.
The liquid port 110 on the shell 101 can be used as an ink outlet of the ink box, the ink 300 in the liquid storage chamber 102 can flow outwards through the liquid port 110, and in some embodiments, the liquid port 110 can also be used as an ink inlet of the ink box during ink filling, so that the ink filling operation from bottom to top is realized, and the mode is beneficial to reducing the contact area of the ink and the gas in the ink box. In the process of filling ink, the original gas in the ink box can be discharged through the cover of the shell 101 or the opening structure on the shell 101.
Taking the liquid metal as an example of the ink 300, the liquid metal enters the bottom of the liquid storage chamber 102 from the liquid port 110, at this time, the liquid level of the liquid metal entering the liquid storage chamber 102 contacts with the original gas in the chamber 102 to form an extremely thin layer of oxide film, the oxide film can prevent the liquid metal from further contacting with the gas, and then the oxide film can rise along with the rising of the liquid level of the liquid metal until the specified ink level is reached along with the increase of the injection amount of the liquid metal under the condition of no larger shaking.
Preferably, the first air opening 109 is disposed on the top surface of the housing 101, and the liquid opening 110 is disposed on the bottom surface of the housing 101, so as to meet the requirements of raising the highest liquid level of the ink 300 during filling and discharging the ink 300 as completely as possible during discharging.
In some embodiments, the liquid port 110 may be directly connected to the printhead 400 of the printer, or connected to the printhead 400 of the printer by a pipeline. In some embodiments, the printhead 400 may employ a direct write printhead, a spray printhead, or the like. Preferably, the printhead 400 is a direct write printhead, and is composed of a pen barrel and a pen tip.
In some embodiments, as shown in fig. 5, the housing 101 is provided with a filling port 111 in communication with the liquid storage chamber 107 of the first chamber 103, and the filling port 111 is located above the liquid level. The filling operation can be completed through the filling port 111, and the gas in the cavity can be discharged through the filling port in the process.
In some embodiments, a second port 112 is provided in the housing 101 that communicates with the second pneumatic chamber 108 of the second chamber 104. The second chamber 104 can exhaust the air therein through the second air port 112 when the ink cartridge is filled, so that the ink in the second chamber 104 is flush with the ink in the first chamber 103.
The opening structures of the air port, the liquid injection port and the like on the shell described in the embodiment of the invention can be opened and closed through the structure of the electromagnetic valve, and can also be opened and closed through the traditional sealing mode (such as a sealing cover, a sealing cap and the like). The opening and closing states of the opening structures can be controlled according to actual requirements, so that the requirements of exhausting, sealing, liquid injection and liquid discharge are met.
Referring to fig. 6, in some embodiments, the spacer 105 is an elastic spacer that conforms to the ink level, and in response, the first chamber 103 has a mounting structure 113 within which the elastic spacer is secured, with an edge of the elastic spacer secured to the mounting structure 113. The assembly structure 113 may include a slot structure formed in an inner wall of the first chamber 103, and an edge of the spacer 105 is clamped and fixed with the slot in an interference fit. In some embodiments, the retention structure may also be reinforced by extrusion, insert insertion, or the like. The mounting structure 113 may also include a spacer that separates certain areas within the reservoir chamber 102 and prevents deformation of the spacer 105 from affecting such areas (e.g., the fill port 111). In particular, the separator 105 may be a film made of an elastic, non-breathable polymer material.
In the process of ink discharge, the liquid level in the liquid storage cavity 107 in the first chamber 103 is reduced, so that the negative pressure in the liquid storage cavity 107 is increased, and at this time, the spacer 105 can be attached to the liquid level in the liquid storage cavity 107 to deform downwards under the trend of pressure due to the good elastic performance of the spacer, so as to balance the pressure difference between the first air pressure cavity 106 and the liquid storage cavity 107.
In some embodiments, as shown in fig. 7, the spacer 105 is a piston body that conforms to the ink level, the piston body forming a clearance fit with the inner wall of the first chamber. The number of piston bodies in this embodiment is 1, corresponding to the shape of the cross section of the first chamber. In other embodiments, the spacer 105 is one or more piston bodies attached to the ink level, the middle part of the first chamber 103 is provided with a baffle structure 114, the baffle structure 114 divides the middle part of the first chamber 103 into partition spaces 115 corresponding to the number of the piston bodies, two ends of the partition spaces 115 are opened and respectively communicated with two ends of the first chamber 103 separated by the baffle structure 114, and a clearance fit is formed between one or more piston bodies and the inner walls of the corresponding partition spaces. This embodiment can avoid the problem of rollover due to deflection when the ink is sloshing, as compared to using a single large piston body, by forming the displaceable structure in the first chamber 103 with multiple piston bodies together.
In some embodiments, the ink cartridge further includes a limit structure that limits the displacement distance of the piston body in the corresponding inter-partition 115. The limiting structure can be a needle-shaped, plate-shaped or net-shaped limiting structure arranged at the openings at two ends of the partition room 115, so as to play a role in blocking the piston body and allow liquid/gas to pass through. Preferably, the distance between the inner walls of the first chamber 103 adjacent to and opposite to any one of the openings at the two ends of the partition 115 is smaller than the thickness of the piston body, and the end portions of the openings at the two ends of the partition 115 form a limiting structure of the piston body.
In some embodiments, as shown in fig. 8-9, the baffle structure 114 may form the partition 115 by itself, may form the partition 115 in cooperation with the inner wall of the first chamber 103, or may be a combination of both.
The ink box provided by the invention can maintain the basic stability of the ink liquid level in the second chamber by utilizing the air pressure in the second air pressure chamber through the closed second air pressure chamber formed in the second chamber, so as to avoid the problem that the ink is discharged due to great change of the hydraulic pressure at the liquid port, and on the other hand, the first air pressure chamber and the liquid storage chamber are separated by the deformable/displaceable separating piece, so that the contact of the ink and the air can be effectively prevented, and the phenomenon of deterioration of the ink is prevented.
The present invention is based on the ink cartridge in the above embodiment, and further proposes an ink cartridge control system, specifically, as shown in fig. 10, fig. 10 is a schematic structural diagram of the ink cartridge control system in the embodiment of the present invention. The ink box control system comprises the ink box 100, a pressure sensor 500 and a pneumatic control system 200, wherein the pressure sensor 500 is arranged in a liquid storage cavity 102 of the ink box 100 and used for detecting a pressure value in the liquid storage cavity 102, an output end of the pneumatic control system 200 for providing control air pressure outwards is communicated with a first air port 109 of the ink box 100 and used for regulating and controlling the air pressure value in the liquid storage cavity 102 through the first air port 109, and preferably, the pressure sensor 500, the pneumatic control system 200 and a preset pressure value jointly form pressure closed loop control of the ink box.
The pressure sensor 500 may be a hydraulic pressure sensor, which is disposed at a fixed position below the liquid level of the ink, and the preset pressure value is a hydraulic pressure value of the position in a state of good ink output through test verification, and preferably, the pressure sensor 500 is disposed at the lowest liquid level of the ink, such as a liquid port. The pressure sensor 500 may also be an air pressure sensor, which may be disposed at a certain position of the first air pressure chamber 106 or the second air pressure chamber 108, and the preset pressure value is an air pressure value in the air pressure chamber under the condition of good ink outlet verified by a test, preferably, the air pressure sensor may be disposed on the second air port 112 on the second air pressure chamber 108, and after the ink filling is completed, the second air pressure chamber 108 is sealed.
The pneumatic control system 200 may provide control of positive pressure, negative pressure, and pressure relief within the first pneumatic chamber 106. The pneumatic control system 200 comprises a gas pipeline 201, a negative pressure component 202 communicated with the gas pipeline 201 through a first electromagnetic valve 203, a positive pressure component 204 communicated with the gas pipeline 201 through a second electromagnetic valve 205, a pressure release component 206 communicated with the gas pipeline 201 through a third electromagnetic valve 207, and one end of the gas pipeline 201 serving as an output end of the pneumatic control system 200 for outputting control air pressure to the outside, wherein the output end is connected to a first air port 109 of the ink box 100.
The negative pressure component 202 is used for outputting negative pressure, a negative pressure air pump can be adopted, the positive pressure component 204 is used for outputting positive pressure, a positive pressure air pump can be adopted, the pressure release component is used for balancing the air pressure in the air pressure cavity 108 by utilizing the external air pressure, and a throttling noise elimination valve can be adopted.
In some embodiments, the pneumatic control system 200 may further include a pressure stabilizing chamber 208 in communication with the air line 201 to prevent air flow disturbances in the pneumatic control system 200 and the ink cartridge 100 in communication with the pneumatic control system 200, and to provide a buffer function.
As shown in fig. 11, in the initial state, p2=p3+pgh, P2 is the hydraulic pressure at the liquid port, P3 is the air pressure of the whole liquid storage chamber, ρ is the density of the ink, g is the gravitational acceleration, h is the liquid level height in the second chamber, at this time, P3 is maintained at P0 by the air control system, and P0 is the preset air pressure value.
As shown in fig. 12, when the ink cartridge control system is in operation, as ink is continuously consumed, the ink level in the liquid storage cavity gradually decreases, at this time, the negative pressure in the liquid storage cavity increases, the change can deform/displace the spacer downwards to balance the pressure in the two cavities, and the ink level in the second cavity slightly decreases under the pressure balance trend of the second cavity, so that the negative pressure of the second air pressure cavity at the upper part of the second cavity increases until the pressure negative pressure of the first air pressure cavity and the second air pressure cavity are equal. At this time, the air pressure sensor located on the second air pressure cavity detects the current air pressure value and feeds back the current air pressure value to the air control system, the air control system regulates and controls the air pressure value in the cavity to return to the preset air pressure value in a pressure relief mode, at this time, the air pressure in the first air pressure cavity in the second cavity is recovered, the ink liquid level returns to the initial liquid level again, at this time, P2=P3+ρgh, since P3 is regulated back to P0, P3 is kept unchanged, h returns to the initial liquid level again and is unchanged, ρ and g are constant values, and therefore the pressure of P2 at the liquid port is kept constant.
Based on the above-described derivation, the ink discharge pressure at the pen tip of the print head is also maintained in a good state.
The invention provides an ink box control system, which is provided with the ink box, so that the control system has the advantages of the ink box in all directions, and the ink outlet quantity of the ink box can be accurately maintained to be always constant by closed-loop control of the pressure in the cavity formed by a pressure sensor, a pneumatic control system and a preset pressure value.
Those of skill would further appreciate that the various illustrative logical blocks, modules, circuits, and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware, computer software, or combinations of both. To clearly illustrate this interchangeability of hardware and software, various illustrative components, blocks, modules, circuits, and steps have been described above generally in terms of their functionality. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the overall system. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present disclosure.
Claims (8)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811545003.8A CN111319360B (en) | 2018-12-17 | 2018-12-17 | Ink cartridge and ink cartridge control system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811545003.8A CN111319360B (en) | 2018-12-17 | 2018-12-17 | Ink cartridge and ink cartridge control system |
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| Publication Number | Publication Date |
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| CN111319360A CN111319360A (en) | 2020-06-23 |
| CN111319360B true CN111319360B (en) | 2024-12-20 |
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| CN201811545003.8A Active CN111319360B (en) | 2018-12-17 | 2018-12-17 | Ink cartridge and ink cartridge control system |
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| CN115855193B (en) * | 2022-11-30 | 2025-05-23 | 杭州聚川环保科技股份有限公司 | Urban pipe network water level early warning differential pressure type monitoring device |
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|---|---|---|---|---|
| JP2002137409A (en) * | 2000-10-31 | 2002-05-14 | Seiko Epson Corp | Ink tank |
| US6398353B1 (en) * | 1999-09-21 | 2002-06-04 | Canon Kabushiki Kaisha | Ink tank, and liquid discharge recording apparatus provided with such ink tank |
| CN209580851U (en) * | 2018-12-17 | 2019-11-05 | 北京梦之墨科技有限公司 | A kind of print cartridge and print cartridge control system |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA2100977C (en) * | 1992-07-24 | 2000-02-08 | Noribumi Koitabashi | Ink container, ink and ink jet recording apparatus using ink container |
| JPH10337877A (en) * | 1997-06-06 | 1998-12-22 | Oki Data:Kk | Ink tank and ink jet printer |
| US6863389B2 (en) * | 2003-01-15 | 2005-03-08 | Xerox Corporation | Liquid ink cartridge using viscous gel |
| CN201633284U (en) * | 2010-03-09 | 2010-11-17 | 珠海天威飞马打印耗材有限公司 | Ink supply bottle and continuous ink supply system |
| CN103240998B (en) * | 2012-02-09 | 2015-11-25 | 珠海纳思达企业管理有限公司 | A kind of method injecting ink to print cartridge |
| CN203142017U (en) * | 2013-01-04 | 2013-08-21 | 深圳市映科打印技术有限公司 | External ink bottle used for continuous ink supply and ink adding assembly |
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2018
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| US6398353B1 (en) * | 1999-09-21 | 2002-06-04 | Canon Kabushiki Kaisha | Ink tank, and liquid discharge recording apparatus provided with such ink tank |
| JP2002137409A (en) * | 2000-10-31 | 2002-05-14 | Seiko Epson Corp | Ink tank |
| CN209580851U (en) * | 2018-12-17 | 2019-11-05 | 北京梦之墨科技有限公司 | A kind of print cartridge and print cartridge control system |
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| CN111319360A (en) | 2020-06-23 |
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