CN115384192B - Ink box for jet printing equipment - Google Patents

Ink box for jet printing equipment Download PDF

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Publication number
CN115384192B
CN115384192B CN202211074046.9A CN202211074046A CN115384192B CN 115384192 B CN115384192 B CN 115384192B CN 202211074046 A CN202211074046 A CN 202211074046A CN 115384192 B CN115384192 B CN 115384192B
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China
Prior art keywords
liquid
printed
ink cartridge
liquid level
communicating
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CN202211074046.9A
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Chinese (zh)
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CN115384192A (en
Inventor
王希
黄宇渊
金海云
徐琳菲
黄波
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hangzhou Honghua Digital Technology Stock Co Ltd
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Hangzhou Honghua Digital Technology Stock Co Ltd
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Priority to CN202211074046.9A priority Critical patent/CN115384192B/en
Publication of CN115384192A publication Critical patent/CN115384192A/en
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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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
    • B41J2/00—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed
    • B41J2/005—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by bringing liquid or particles selectively into contact with a printing material
    • B41J2/01—Ink jet
    • B41J2/17—Ink jet characterised by ink handling
    • B41J2/175—Ink supply systems ; Circuit parts therefor
    • B41J2/17566—Ink level or ink residue control
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
    • B41J2/00—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed
    • B41J2/005—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by bringing liquid or particles selectively into contact with a printing material
    • B41J2/01—Ink jet
    • B41J2/17—Ink jet characterised by ink handling
    • B41J2/175—Ink supply systems ; Circuit parts therefor
    • B41J2/17566—Ink level or ink residue control
    • B41J2002/17576—Ink level or ink residue control using a floater for ink level indication
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
    • Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working

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  • Ink Jet (AREA)

Abstract

The present disclosure relates to an ink cartridge for a jet printing apparatus. The ink cartridge for an inkjet printing apparatus includes: the liquid containing cavity is used for containing liquid to be printed; a liquid input channel communicated with the liquid accommodating cavity and used for guiding the liquid to be printed into the liquid accommodating cavity; the liquid output end is used for outputting liquid to be printed to the spray head; a blocking unit provided with a plurality of communicating parts which are respectively communicated with the liquid recovery part and the liquid accommodating cavity, wherein the sizes of the communicating parts of the plurality of communicating parts are changed; a liquid recovery section for recovering the liquid to be jet printed flowing out through the communication section; and the control unit is used for adjusting the position of the blocking unit so as to adjust the liquid level of the liquid to be printed in the liquid accommodating cavity. The volume of waiting to spout printing liquid that this disclosure can realize flowing out via the UNICOM is adjustable in succession, and then realizes that the liquid level in the liquid holding chamber is undulant in very little within range to realize accurate liquid level control.

Description

Ink box for jet printing equipment
Technical Field
The present disclosure relates generally to digital inkjet printing and, in particular, to ink cartridges for inkjet printing devices.
Background
Conventional ink cartridges for inkjet printing apparatuses include, for example: the liquid storage device comprises a liquid storage cavity, a liquid input channel communicated with the liquid storage cavity, a liquid output end, a baffle and a float sensor for detecting the liquid level in the liquid storage cavity.
For example, the upper edge of the baffle serves to define the level of liquid within the liquid-containing chamber. However, the liquid level defined by the upper edge of the baffle has a large error because of the influence of the surface tension of the liquid.
For another example, the liquid level of the liquid to be printed in the ink cartridge is controlled by liquid level detection data detected by the float sensor.
Since the ink cartridge needs to be moved during printing, even reciprocated at a high speed. Digital spray printing requires precise liquid level control. However, in the conventional method of controlling the liquid level of the liquid to be printed in the ink cartridge by using the liquid level detection data detected by the float sensor, it is difficult to ensure that the liquid level in the liquid accommodating chamber fluctuates in a small range, and thus the fluctuation of the pressure value of the liquid output end is caused, thereby causing a phenomenon of uneven ink supply.
In summary, the conventional ink cartridges for inkjet printing apparatuses have the following disadvantages: the liquid level defined by the upper edge of the baffle has a large error and it is difficult to achieve a fluctuation of the liquid level in the liquid containing chamber within a small range.
Disclosure of Invention
The present disclosure provides an ink cartridge for a jet printing apparatus, which can realize that the liquid level in a liquid accommodating chamber fluctuates in a small range, thereby realizing accurate liquid level control.
According to a first aspect of the present disclosure, an ink cartridge for a jet printing apparatus is provided. The ink cartridge for an inkjet printing apparatus includes: the liquid containing cavity is used for containing liquid to be printed; a liquid input channel communicated with the liquid accommodating cavity and used for guiding the liquid to be printed into the liquid accommodating cavity; the liquid output end is used for outputting liquid to be printed to the spray head; a blocking unit provided with a plurality of communicating portions which are respectively communicated with the liquid recovery portion and the liquid accommodating chamber, wherein the sizes of the communicating portions of the plurality of communicating portions are changed; a liquid recovery section for recovering the liquid to be jet printed flowing out through the communication section; and the control unit is used for adjusting the position of the blocking unit so as to adjust the liquid level of the liquid to be printed in the liquid accommodating cavity.
In some embodiments, the lateral dimension of the communication portion varies along the variation of the longitudinal height of the communication portion, so that the amount of liquid to be printed flowing out through the communication portion is continuously adjustable.
In some embodiments, the edge of the communication does not have a continuous curvature.
In some embodiments, the ink cartridge further comprises: positive and negative pressure control device.
In some embodiments, the plurality of vents are configured to include: the first communicating parts are located on the blocking unit at a longitudinal height which is larger than that of the second communicating parts, and the apertures of the first communicating parts are larger than that of the second communicating parts.
In some embodiments, the plurality of vents are configured to be any of: a plurality of inverted triangles; a plurality of inverted trapezoids; each of the plurality of communication parts comprises at least a first edge and a second edge, one ends of the first edge and the second edge are intersected, the first edge is perpendicular to the bottom surface of the blocking unit, and the second edge is stepped.
In some embodiments, the communication is configured as a through hole and/or an opening.
In some embodiments, the ink cartridge further comprises: the wave-absorbing device is arranged in the liquid accommodating cavity and is positioned below the liquid level of the liquid to be jet printed, and the wave-absorbing device is used for weakening the influence of the fluctuation of the surface of the liquid to be jet printed on the position where the liquid output end is positioned, and the liquid output end is positioned at the bottom of the liquid accommodating cavity.
In some embodiments, the ink cartridge further comprises: the wave absorbing device is a blocking structure with the same or different geometric shapes.
In some embodiments, the wave absorbing device is a baffle configured to have one or more of a straight line, a broken line, a wavy line, an oblique line, and an arc line.
In some embodiments, the ink cartridge further comprises: the liquid level fluctuation adjusting device is used for reducing liquid level fluctuation of the liquid to be jet-printed caused by movement of the ink box, and at least part of the liquid level fluctuation adjusting device is positioned on the liquid surface of the liquid to be jet-printed.
In some embodiments, the liquid level fluctuation adjusting device is one or more baffles arranged at the liquid surface of the liquid to be printed, and part of the baffles extend into the liquid surface of the liquid to be printed.
In some embodiments, the liquid level fluctuation adjusting device is one or more baffles arranged at the liquid surface of the liquid to be printed, and part of the baffles extend into the liquid surface of the liquid to be printed.
The summary is provided to introduce a selection of concepts in a simplified form that are further described below in the detailed description. This summary is not intended to identify key features or essential features of the disclosure, nor is it intended to be used to limit the scope of the disclosure.
Drawings
Fig. 1 shows a schematic view of an ink cartridge for an inkjet printing apparatus according to an embodiment of the present disclosure.
Fig. 2 shows a schematic structural view of a blocking unit of an embodiment of the present disclosure.
Fig. 3 shows a schematic view of the liquid level of the liquid to be printed in the liquid containing chamber at a first height.
Fig. 4 shows a schematic view of the liquid level of the liquid to be printed in the liquid containing chamber at a second height.
Fig. 5 shows a schematic structural view of a blocking unit of an embodiment of the present disclosure.
Fig. 6 shows a schematic structural view of a blocking unit of an embodiment of the present disclosure.
Fig. 7 shows a schematic structural view of a blocking unit of an embodiment of the present disclosure.
Fig. 8 shows a schematic structural view of a liquid containing chamber of an embodiment of the present disclosure.
Fig. 9 shows a schematic structural view of a liquid containing chamber of an embodiment of the present disclosure.
Fig. 10 shows a schematic structural view of a liquid containing chamber of an embodiment of the present disclosure.
Fig. 11 shows a schematic structural view of a liquid containing chamber of an embodiment of the present disclosure.
Fig. 12 shows a schematic structural view of a liquid containing chamber of an embodiment of the present disclosure.
Fig. 13 shows a schematic structural view of a liquid containing chamber of an embodiment of the present disclosure.
Fig. 14 shows a schematic structural view of a liquid containing chamber of an embodiment of the present disclosure.
Fig. 15 shows a partial schematic structural view of an ink cartridge for an inkjet printing apparatus according to an embodiment of the present disclosure.
Fig. 16 shows a partial schematic structural view of an ink cartridge for an inkjet printing apparatus according to an embodiment of the present disclosure.
Fig. 17 shows a partial schematic structural view of an ink cartridge for an inkjet printing apparatus according to an embodiment of the present disclosure.
Like or corresponding reference characters indicate like or corresponding parts throughout the several views.
Detailed Description
Preferred embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. While the preferred embodiments of the present disclosure are illustrated in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art.
The term "comprising" and variations thereof as used herein means open ended, i.e., "including but not limited to. The term "or" means "and/or" unless specifically stated otherwise. The term "based on" means "based at least in part on". The terms "one example embodiment" and "one embodiment" mean "at least one example embodiment. The term "another embodiment" means "at least one additional embodiment". The terms "first," "second," and the like, may refer to different or the same object.
As mentioned previously, in the conventional ink cartridge, there is a large error in the liquid level defined by the upper edge of the baffle plate because of the influence of the surface tension of the liquid; in addition, in the conventional method of controlling the liquid level of the liquid to be printed in the ink cartridge by using the liquid level detection data detected by the float sensor, it is difficult to ensure that the liquid level in the liquid accommodating chamber fluctuates in a small range, and further the fluctuation of the pressure value of the liquid output end is caused, thereby causing the phenomenon of uneven ink supply.
To at least partially address one or more of the above problems, as well as other potential problems, example embodiments of the present disclosure propose an ink cartridge for a jet printing apparatus. In the ink cartridge, a blocking unit is provided with a plurality of communicating portions having a variation in size of the communicating portions, such that the communicating portions communicate with the liquid recovery portion and the liquid accommodating chamber, respectively, and the liquid to be jet printed flowing out through the communicating portions is recovered by the liquid recovery portion; and the position of the blocking unit is adjusted through the control unit so as to adjust the liquid level of the liquid to be sprayed in the liquid accommodating cavity, the quantity of the liquid to be sprayed flowing out through the communicating part can be continuously adjustable, and further the fluctuation of the liquid level in the liquid accommodating cavity in a small range is realized, so that the accurate liquid level control is realized.
Fig. 1 shows a schematic view of an ink cartridge 100 for an inkjet printing apparatus according to an embodiment of the disclosure. As shown in fig. 1, the ink cartridge 100 includes, for example, a liquid accommodating chamber 110, a liquid input channel 112, a liquid output port 114, a blocking unit 116, a liquid recovery portion 118, and a control unit 126. The ink cartridge 100 is, for example, an ink cartridge mounted inside an inkjet printing apparatus. The ink cartridge 100 also includes a housing 122.
As regards a jet printing apparatus (not shown in fig. 1), it is for example a multi-color channel digital printing apparatus that can print for objects to be colored of different properties.
In some embodiments, the ink cartridge 100 further comprises, for example, a level fluctuation adjustment device (not shown in fig. 1). The liquid level fluctuation adjusting device is used for reducing liquid level fluctuation of liquid to be printed caused by movement of the ink box, and at least part of the liquid level fluctuation adjusting device is positioned on the liquid surface of the liquid to be printed. The liquid level fluctuation adjusting device will be described in detail with reference to fig. 15 to 17, and will not be described here.
In some embodiments, the ink cartridge 100 further includes, for example, a positive and negative pressure control device 120. The positive and negative pressure control device 120 is used for, for example, performing positive and negative pressure control on the inside of the ink cartridge 100.
As for the liquid containing chamber 110, it is used for containing the liquid to be printed. In some embodiments, a wave-absorbing device (not shown in fig. 1) is provided in the liquid receiving chamber 110, for example, to attenuate the influence of the wave-absorbing device on the position of the liquid output end 114 due to the fluctuation of the surface of the liquid to be printed. The wave-absorbing device will be described in detail with reference to fig. 8 to 14, and will not be described here.
With respect to the liquid input channel 112, it communicates with the liquid containing chamber 110 for introducing the liquid to be printed into the liquid containing chamber 110.
With respect to the liquid output end 114, it is used to output the liquid to be printed to the head (not shown in fig. 1). The liquid outlet 114 is for example located at the bottom of the liquid containing chamber.
Regarding the blocking unit 116, a plurality of communication portions 124 are disposed thereon. The communication portion 124 communicates with the liquid recovery portion 118 and the liquid containing chamber 110, respectively. There is a variation in the communication portion size of the plurality of communication portions 124. The blocking unit 116 may be a baffle, for example.
Regarding the communicating portion 124, the lateral dimension thereof varies, for example, along the variation in the longitudinal height at which the communicating portion is located, so that the amount of liquid to be jet printed flowing out through the communicating portion is continuously adjustable. In some embodiments, the communication is configured as a through hole and/or an opening, for example. In some embodiments, the edges of the communication are, for example, not of continuous curvature. It should be appreciated that in conventional ink cartridges, the blocking unit is often a complete barrier. Thus, the portion of the liquid to be printed in the liquid containing chamber that contacts the shutter has a continuous curvature. Therefore, when the liquid level of the liquid to be printed in the liquid containing cavity is higher than the upper edge of the baffle plate due to the surface tension of the liquid, the liquid to be printed in the liquid containing cavity still cannot flow out into the liquid containing cavity. That is, the liquid to be printed in the liquid containing chamber forms a projection higher than the upper edge of the barrier under the action of the surface tension. At this time, the liquid level of the liquid to be printed in the liquid containing chamber is not equal to (actually higher than) the height of the barrier. This means that in the conventional ink cartridge, there is an error due to the above-described surface tension by adjusting the height of the liquid level of the liquid to be printed in the liquid accommodating chamber only by adjusting the height of the shutter. Further, when the liquid is further introduced into the liquid accommodating chamber, a case where the liquid suddenly overflows to the outside, a case where the liquid level of the liquid to be printed suddenly becomes stepped and unstable, and a case where the surface of the liquid to be printed fluctuates are caused. In the above-mentioned scheme, by means of the plurality of communicating portions, the edge of the communicating portion does not have continuous curvature, and when the liquid level of the liquid to be printed in the liquid containing cavity is slightly higher than the lower edge of the communicating portion, the liquid flows out to the liquid containing cavity through the communicating portion. Therefore, the portion of the liquid to be printed in the liquid containing chamber, which is in contact with the blocking unit, does not have a continuous curvature, and the surface of the liquid to be printed cannot be raised by the surface tension. Therefore, by the communicating part, accurate adjustment of the liquid level can be realized, the error caused by the surface tension can not be generated, and abrupt liquid level step can not occur. In some embodiments, the plurality of vents are configured to include, for example: the first communicating parts are located on the blocking unit at a longitudinal height which is larger than that of the second communicating parts, and the apertures of the first communicating parts are larger than that of the second communicating parts.
In some embodiments, the plurality of vents is configured to be any of: a plurality of inverted triangles; a plurality of inverted trapezoids; each of the plurality of communication parts comprises at least a first edge and a second edge, one ends of the first edge and the second edge are intersected, the first edge is perpendicular to the bottom surface of the blocking unit, and the second edge is stepped.
As for the liquid recovery portion 118, it is used for recovering the liquid to be jet printed flowing out via the communicating portion.
With respect to the control unit 126, it is used to adjust the position of the blocking unit 116 so as to adjust the liquid level of the liquid to be printed in the liquid containing chamber 110. The control unit 126 may have one or more processing units including special purpose processing units such as GPU (Graphics Processing Unit, graphics processor), FPGA (Field Programmable Gate Array ), ASIC (Application Specific Integrated Circuit, application specific integrated circuit) and general purpose processing units such as CPU (Central Processing Unit ). In addition, one or more virtual machines may also be running on each processing unit.
It should be understood that in the conventional ink cartridge, adjustment of the liquid level of the liquid to be printed in the liquid containing chamber is often achieved by adjusting the height of the blocking unit. When the liquid level needs to be adjusted, the height of the blocking unit is adjusted, so that the longitudinal height of the upper edge of the blocking unit is consistent with the target liquid level, and the liquid level is limited by using the upper edge of the blocking unit. However, there is a large error in limiting the liquid level by the upper edge of the blocking unit due to the effect of the surface tension of the liquid.
In the above scheme of the disclosure, the blocking unit is provided with the communicating portions with variable sizes, so that the communicating portions are respectively communicated with the liquid recovery portion and the liquid containing cavity, and the liquid level of the liquid to be printed in the liquid containing cavity can be accurately adjusted by the aid of the communicating portions with variable sizes.
For example, when it is desired to raise the liquid level, the position of the blocking unit may be adjusted via the control unit, for example such that the longitudinal height at which the lowest point of the blocking unit is located is equal to the target liquid level. As the liquid to be printed is introduced into the liquid accommodating chamber via the liquid input channel, the liquid level gradually rises. After the surface of the liquid is flush with the lowest point of the blocking unit, as long as the liquid is introduced, the liquid flows out to the liquid recovery part through the communication part, so that the liquid level of the liquid to be printed in the liquid accommodating cavity is kept flush with the lowest point of the blocking unit. As described above, by the plurality of communicating portions, the liquid to be printed in the liquid accommodating chamber cannot form a continuous curvature at the communicating portions, and no protrusion is formed due to surface tension, so that the above solution can achieve accurate adjustment of the liquid level.
For another example, when it is desired to lower the liquid level, the position of the blocking unit may be adjusted via the control unit, for example such that the longitudinal height at which the lowest point of the blocking unit is located is equal to the target liquid level. At this time, the current liquid level of the liquid to be printed in the liquid accommodating chamber is higher than the lowest point (i.e., the target liquid level) of the blocking unit, and thus the liquid to be printed flows out through the communicating portion, and the liquid level correspondingly drops. It will be appreciated that the fall between the current level and the target level is greater at the beginning of the liquid outflow. Accordingly, the lateral dimension of the communication portion corresponding to the current liquid level is also large, and thus, the current flow rate of the liquid outflow is also large. As the liquid level decreases, the lateral dimension of the communication portion corresponding to the current liquid level also gradually decreases, and thus, the current flow rate of the liquid flowing out also gradually decreases. It will be appreciated that the current flow rate of the liquid out gradually approaches zero as the liquid level drops to near the target liquid level. Therefore, by changing the transverse dimension of the communicating part along the change of the longitudinal height of the communicating part, the amount of the liquid to be jet printed flowing out through the communicating part can be continuously adjustable, the accurate adjustment of the liquid level can be realized, and the liquid level is prevented from being stepped at the target liquid level.
Fig. 2 illustrates a schematic structural diagram of a blocking unit 200 of an embodiment of the present disclosure. The blocking unit 200 is provided with a plurality of communication portions 202. The lateral dimension of the communication portion 202 varies along the variation in the longitudinal height at which the communication portion is located. For example, the plurality of communication portions 202 are configured as a plurality of openings. Specifically, the plurality of communication portions 202 may be configured as a plurality of inverted triangles. As shown in fig. 2, when the longitudinal height of the communication portion 202 is low, the lateral dimension of the communication portion 202 is small; when the longitudinal height of the communication portion 202 is high, the lateral dimension of the communication portion 202 is large. Accordingly, a blocking portion 204 is formed between adjacent communication portions 202. The blocking portion 204 blocks the outflow of the liquid and forms a pressure difference with the communication portion 202 so that the liquid flows out through the communication portion 202.
In some real-time examples, the position of the blocking unit may be adjusted via the control unit, for example, so that the longitudinal height at which the bottom end of the communication portion 202 is located coincides with the target liquid level, so as to adjust the liquid level to the target liquid level. The specific adjustment process is not described here in detail. It should be understood that, in the above-described aspect, by the plurality of communication portions 202, when the liquid level of the liquid to be printed in the liquid containing chamber is higher than the bottom end of the communication portion 202, there is a pressure difference between the first pressure received at the communication portion 202 and the second pressure received at the blocking portion 204 at the portion where the liquid to be printed in the liquid containing chamber contacts the blocking unit 200. It should be appreciated that the first pressure is less than the second pressure. Therefore, the portion of the liquid to be printed in the liquid containing chamber, which is in contact with the barrier unit 200, does not have a continuous curvature, and the surface of the liquid to be printed cannot be raised by the surface tension. Therefore, by determining the liquid level of the liquid to be printed in the liquid containing chamber by the bottom end of the communication portion 202, accurate adjustment of the liquid level can be achieved without the occurrence of the above-described error due to the surface tension.
In some embodiments, by means of the plurality of communicating portions, the control unit may also be used to adjust the introduction flow rate of the liquid to be printed introduced into the liquid accommodating chamber via the liquid input channel, so as to achieve accurate control of the liquid level of the liquid to be printed in the liquid accommodating chamber. The function of the communication 202 in adjusting the liquid level is described below with reference to fig. 3 and 4. Fig. 3 shows a schematic view of the liquid level of the liquid to be printed in the liquid containing chamber at a first level, and fig. 4 shows a schematic view of the liquid level of the liquid to be printed in the liquid containing chamber at a second level.
When it is desired to raise the liquid level, the position of the blocking unit may be kept unchanged, for example, while the control unit is used to raise the incoming flow rate to a higher first target flow rate. When the liquid level of the liquid to be sprayed in the liquid containing chamber is higher than the bottom end of the communication portion 202 on the blocking unit, the liquid flows out to the liquid recovery portion via the communication portion 202. It should be understood that, in the initial stage, when the liquid level is slightly higher than the bottom end of the communication portion 202 on the blocking unit, the lateral dimension of the communication portion 202 corresponding to the longitudinal height at which the current liquid level is located is smaller, so the flow rate of the liquid flowing out to the liquid recovery portion via the communication portion 202 is smaller. Thus, at a higher first target flow rate, the flow rate of the liquid flowing out through the communication portion 202 is smaller than the first target flow rate, and the liquid level rises. As the liquid level rises, the lateral dimension of the communication portion 202 corresponding to the longitudinal height at which the current liquid level is located gradually increases. Thus, the flow rate of the liquid flowing out through the communication portion 202 gradually increases. When the flow rate of the liquid flowing out through the communication portion 202 is equal to (or substantially equal to) the first target flow rate, the liquid level is dynamically stabilized at a higher target liquid level. For example, the liquid level is now at a first height L1, which is a greater longitudinal height. The first height L1 is the target liquid level corresponding to the first target flow rate.
Accordingly, when the liquid level is high (e.g., the liquid level is at the first height L1), the introduction flow rate may be reduced if the liquid level needs to be reduced. For example, the control unit is used to reduce the incoming flow rate to a second, lower target flow rate. It should be understood that the flow rate of the liquid flowing out through the communication portion 202 is greater than the second target flow rate, and thus the liquid level drops. As the liquid level decreases, the lateral dimension of the communication portion 202 corresponding to the longitudinal height of the liquid level decreases gradually, and thus the flow rate of the liquid flowing out through the communication portion 202 decreases gradually. When the flow rate of the liquid flowing out through the communication portion 202 is equal to (or substantially equal to) the second target flow rate, the liquid level is dynamically stabilized at a lower target liquid level. For example, the liquid level is at a second, lower level L2. The second height L2 is the target liquid level corresponding to the second target flow rate.
Therefore, it can be understood that when the liquid level is dynamically stabilized, the introduction flow rate has a correspondence relationship with the lateral dimension of the communication portion 202, that is, the introduction flow rate has a correspondence relationship with the target liquid level height. Therefore, based on the above-described scheme, by controlling the introduction flow rate through the plurality of communicating portions, the liquid level of the liquid to be jet printed in the liquid accommodating chamber can be precisely controlled.
Fig. 5 illustrates a schematic structural view of a blocking unit 500 of an embodiment of the present disclosure. The blocking unit 500 is provided with a plurality of communication parts 502. The plurality of communication portions 502 are configured as a plurality of openings. Each of the plurality of communication parts 502 includes at least a first edge 504 and a second edge 506, which are intersected at one end, the first edge 504 is perpendicular to a bottom surface 508 of the blocking unit, and the second edge 506 is stepped.
Fig. 6 illustrates a schematic structural diagram of a blocking unit 600 of an embodiment of the present disclosure. The blocking unit 600 is provided with a plurality of communication parts 602. The plurality of communication portions 602 are configured as a plurality of openings. The plurality of communication portions 602 are configured in a plurality of reverse trapezoids. When the longitudinal height is low, the lateral dimension of the communication portion 602 is small; when the vertical height is high, the lateral dimension of the communication portion 602 is large.
Fig. 7 illustrates a schematic structural diagram of a blocking unit 700 of an embodiment of the present disclosure. The blocking unit 700 is provided with a plurality of communication parts. The plurality of communication portions are configured as a plurality of through holes, for example, the cross section of which is circular or approximately circular. The plurality of communication parts are configured to include: at least a plurality of first communicating portions 702 and a plurality of second communicating portions 704, a longitudinal height of the first communicating portions 702 on the blocking unit 700 is greater than a longitudinal height of the second communicating portions 704 on the blocking unit 700, and an aperture of the first communicating portions 702 is greater than an aperture of the second communicating portions 702. It is understood that the blocking unit 700 further includes a plurality of third communication portions 706, where the longitudinal height of the third communication portions 706 on the blocking unit 700 is smaller than the longitudinal height of the second communication portions 704 on the blocking unit 700, and the aperture of the third communication portions 706 is smaller than the aperture of the second communication portions 702.
Regarding the roles of the communication portion 502, the communication portion 602, and the first, second and third communication portions 702, 704 and 706 in adjusting the liquid level, reference may be made to the description of the communication portion 202, which is not repeated here.
Fig. 8 shows a schematic structural view of a liquid containing chamber 800 of an embodiment of the present disclosure. A wave absorber 802 is provided in the liquid containing chamber 800. The wave absorbing device 802 is disposed inside the liquid containing chamber 800 and below the liquid surface of the liquid to be printed, and the wave absorbing device 802 is used for reducing the influence of the wave on the surface of the liquid to be printed on the position where the liquid output end (not shown in fig. 8) is located, and the liquid output end is located at the bottom of the liquid containing chamber 800.
The wave absorbing device 802 is, for example, a baffle configured to have a wavy line shape. For ease of illustration, the flow direction of the liquid inside the liquid containing chamber 800 is shown by arrows in fig. 8 for output via the liquid output. During the movement of the cartridge, the surface of the liquid to be jet printed fluctuates. In the conventional ink cartridge, the fluctuation causes the pressure at the liquid output end at the bottom of the liquid containing chamber to vary with the fluctuation, thereby causing the output ink amount of the liquid output end to be uneven, affecting the jet printing effect. In the above-described arrangement, the wave-absorbing device 802 functions to attenuate and eliminate wave conduction in the process of conducting the wave motion of the surface of the liquid to be printed to the bottom of the liquid accommodating chamber. Therefore, the pressure at the liquid output end positioned at the bottom of the liquid containing cavity is not influenced by the fluctuation of the surface of the liquid to be printed, and the stable target pressure can be maintained, so that the uniformity of the output ink quantity of the liquid output end is ensured, and the excellent printing effect is ensured.
Fig. 9 shows a schematic structural view of a liquid containing chamber 900 of an embodiment of the present disclosure. A wave absorber 902 is disposed within the liquid containing chamber 900. The wave absorbing means 902 is, for example, a baffle configured to have a broken line shape.
Fig. 10 shows a schematic structural view of a liquid containing chamber 1000 of an embodiment of the present disclosure. A wave-absorbing device 1002 is provided in the liquid accommodation chamber 1000. The wave absorbing means 1002 is, for example, a baffle configured to have an arc shape.
Fig. 11 shows a schematic structural view of a liquid containing chamber 1100 of an embodiment of the present disclosure. A wave absorber 1102 is provided in the liquid accommodation chamber 1100. The wave absorbing means 1102 is, for example, a baffle configured to have a diagonal shape.
Fig. 12 shows a schematic structural view of a liquid containing chamber 1200 of an embodiment of the present disclosure. A wave absorber 1202 is disposed within the liquid containing chamber 1200. The wave absorbing means 1202 is, for example, a baffle plate configured to have a linear shape.
In some embodiments, the wave-absorbing devices are a combination of a plurality of wave-absorbing devices configured as wave-absorbing device 802, wave-absorbing device 902, wave-absorbing device 1002, wave-absorbing device 1102, and wave-absorbing device 1202.
Fig. 13 shows a schematic structural view of a liquid containing chamber 1300 of an embodiment of the present disclosure. A wave absorber 1302 is provided in the liquid receiving chamber 1300. The wave-attenuating device 1302 is configured, for example, as a blocking structure having a circular cross-section, e.g., a blocking structure having a cylindrical shape or a spherical shape. The wave absorbing device 1302 is disposed on the bottom surface of the liquid containing chamber 1300, for example.
During the movement of the cartridge, the surface of the liquid to be jet printed fluctuates. In the above-described scheme, when the fluctuation of the surface of the liquid to be printed is conducted to near the bottom of the liquid containing chamber, it is attenuated and eliminated by the wave-attenuating device 1302. Therefore, the pressure at the liquid output end positioned at the bottom of the liquid containing cavity is not influenced by the fluctuation of the surface of the liquid to be printed, and the stable target pressure can be maintained, so that the uniformity of the output ink quantity of the liquid output end is ensured, and the excellent printing effect is ensured.
Fig. 14 shows a schematic structural view of a liquid containing chamber 1400 of an embodiment of the present disclosure. A wave absorber 1402 is provided in the liquid containing chamber 1400. The wave absorbing device 1402 is configured as a blocking structure having a rectangular cross section, for example.
In some embodiments, the wave absorbing means is configured as a blocking structure with a diamond or triangular cross-section, for example. The wave absorbing device can also be a combination of various blocking structures in blocking structures with circular, rectangular, diamond or triangular cross sections.
Fig. 15 shows a partial schematic configuration of an ink cartridge 1500 for an inkjet printing apparatus according to an embodiment of the present disclosure. The ink cartridge 1500 further includes a liquid level fluctuation adjusting device 1502. The liquid level fluctuation adjusting device 1502 is used for reducing liquid level fluctuation of the liquid to be jet printed caused by movement of the ink cartridge, and at least part of the liquid level fluctuation adjusting device 1502 is positioned on the liquid surface of the liquid to be jet printed. The liquid level fluctuation adjusting means 1502 is, for example, one or more baffles provided at the liquid surface of the liquid to be jet printed, portions of the baffles extending deep below the liquid surface of the liquid to be jet printed.
During the movement of the cartridge, the surface of the liquid to be jet printed fluctuates. For ease of illustration, the general direction of movement of the ink cartridge is illustrated by the arrows in fig. 15. In the above-described aspect, the liquid level fluctuation adjusting device 1502 can produce a weakening and eliminating effect on the fluctuation of the surface of the liquid to be printed and the fluctuation conducted to a predetermined depth range below the surface of the liquid to be printed, thereby avoiding the conduction of the fluctuation to a deeper depth. Therefore, the pressure at the liquid output end positioned at the bottom of the liquid containing cavity is not influenced by the fluctuation of the surface of the liquid to be printed, and the stable target pressure can be maintained, so that the uniformity of the output ink quantity of the liquid output end is ensured, and the excellent printing effect is ensured.
Fig. 16 shows a partial schematic structural view of an ink cartridge 1600 for an inkjet printing apparatus according to an embodiment of the present disclosure. The ink cartridge 1600 further includes a level fluctuation adjustment device 1602. The liquid level fluctuation adjusting device 1602 is a plurality of floats floating on the liquid surface of the liquid to be jet printed, the plurality of floats having the same or different geometric shapes. For example, the fluid level fluctuation adjusting device 1602 is a float having an oblate or elliptic cross section.
During the movement of the cartridge, the surface of the liquid to be jet printed fluctuates. In the above-described aspect, the liquid level fluctuation adjusting device 1602 can produce a weakening and eliminating effect on the fluctuation of the surface of the liquid to be printed and the fluctuation conducted to a predetermined depth below the surface of the liquid to be printed, thereby avoiding the conduction of the fluctuation to a deeper depth. Therefore, the pressure at the liquid output end positioned at the bottom of the liquid containing cavity is not influenced by the fluctuation of the surface of the liquid to be printed, and the stable target pressure can be maintained, so that the uniformity of the output ink quantity of the liquid output end is ensured, and the excellent printing effect is ensured.
Fig. 17 shows a partial schematic configuration of an ink cartridge 1700 for an inkjet printing apparatus according to an embodiment of the present disclosure. Ink cartridge 1700 also includes a fluid level fluctuation adjustment device 1702. The liquid level fluctuation adjusting apparatus 1702 is, for example, a float having a circular cross section.
In the scheme, the liquid level fluctuation adjusting device weakens and eliminates the influence of fluctuation of the surface of the liquid to be jet printed on the liquid output end, so that the output ink quantity of the liquid output end can be effectively ensured to be uniform, and the excellent jet printing effect is ensured.
The foregoing description of the embodiments of the present disclosure has been presented for purposes of illustration and description, and is not intended to be exhaustive or limited to the embodiments disclosed. Many modifications and variations will be apparent to those of ordinary skill in the art without departing from the scope and spirit of the various embodiments described. The terminology used herein was chosen in order to best explain the principles of the embodiments, the practical application, or the technical improvements in the marketplace, or to enable others of ordinary skill in the art to understand the embodiments disclosed herein.
The above is merely an optional embodiment of the disclosure, and is not intended to limit the disclosure, and various modifications and variations may be made by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc. that fall within the spirit and principles of the present disclosure are intended to be included within the scope of the present disclosure.

Claims (14)

1. An ink cartridge for an inkjet printing apparatus, comprising:
the liquid containing cavity is used for containing liquid to be printed;
a liquid input channel communicated with the liquid accommodating cavity and used for guiding the liquid to be printed into the liquid accommodating cavity;
the liquid output end is used for outputting liquid to be printed to the spray head;
a blocking unit provided with a plurality of communicating portions which are respectively communicated with the liquid recovery portion and the liquid accommodating chamber, wherein the sizes of the communicating portions of the plurality of communicating portions are changed;
a liquid recovery section for recovering the liquid to be jet printed flowing out through the communication section; and
and the control unit is used for adjusting the position of the blocking unit so as to adjust the liquid level of the liquid to be printed in the liquid accommodating cavity.
2. The ink cartridge according to claim 1, wherein a lateral dimension of the communicating portion varies along a variation in a longitudinal height of the communicating portion so that an amount of the liquid to be jet printed flowing out through the communicating portion is continuously adjustable.
3. The ink cartridge as in claim 1, wherein an edge of the communication portion does not have a continuous curvature.
4. The ink cartridge as in claim 1, further comprising: positive and negative pressure control device.
5. The ink cartridge as in claim 1, wherein the plurality of communication portions are configured to include: the first communicating parts are located on the blocking unit at a longitudinal height which is larger than that of the second communicating parts, and the apertures of the first communicating parts are larger than that of the second communicating parts.
6. The ink cartridge according to claim 1, wherein the plurality of communicating portions are configured as any one of:
a plurality of inverted triangles;
a plurality of inverted trapezoids;
each of the plurality of communication parts comprises at least a first edge and a second edge, one ends of the first edge and the second edge are intersected, the first edge is perpendicular to the bottom surface of the blocking unit, and the second edge is stepped.
7. The ink cartridge according to claim 1, wherein the communication portion is configured as a through hole and/or an opening.
8. The ink cartridge as in claim 1, further comprising:
the wave-absorbing device is arranged in the liquid accommodating cavity and is positioned below the liquid level of the liquid to be jet printed, and the wave-absorbing device is used for weakening the influence of the fluctuation of the surface of the liquid to be jet printed on the position where the liquid output end is positioned, and the liquid output end is positioned at the bottom of the liquid accommodating cavity.
9. The ink cartridge of claim 8, wherein the wave dampening means is a blocking structure having the same or different geometry.
10. The ink cartridge of claim 8, wherein the wave dampening device is a baffle configured to have one or more of a straight line, a broken line, a wavy line, an arc.
11. The ink cartridge according to claim 1 or 5, further comprising:
the liquid level fluctuation adjusting device is used for reducing liquid level fluctuation of the liquid to be jet-printed caused by movement of the ink box, and at least part of the liquid level fluctuation adjusting device is positioned on the liquid surface of the liquid to be jet-printed.
12. The ink cartridge as claimed in claim 11, wherein the liquid level fluctuation adjusting means is one or more baffles provided at a liquid surface of the liquid to be jet printed, portions of the baffles penetrating below the liquid surface of the liquid to be jet printed.
13. The ink cartridge as claimed in claim 11, wherein the liquid level fluctuation adjusting means is a plurality of floats floating on a liquid surface of the liquid to be jet printed, the plurality of floats having the same or different geometric shapes.
14. The ink cartridge as in claim 10, wherein the linear shaped baffles are embodied as diagonal shaped baffles.
CN202211074046.9A 2022-09-02 2022-09-02 Ink box for jet printing equipment Active CN115384192B (en)

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JP3053017B1 (en) * 1999-01-21 2000-06-19 セイコーエプソン株式会社 Method and apparatus for detecting completion of ink filling in sub tank in recording apparatus
JP2004142447A (en) * 2002-09-30 2004-05-20 Canon Inc Liquid supply system, fluid connection structure, ink supply system, and ink jet recording head and recorder employing fluid connection structure
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