Ink cartridge mechanism and printing device

Abstract

The embodiment of the utility model relates to the technical field of digital printing equipment, and particularly discloses an ink box mechanism. The ink box mechanism comprises an ink box assembly and a connecting piece. The ink box assembly is provided with a first liquid storage cavity, a second liquid storage cavity, an air inlet and a liquid inlet, the air inlet is communicated with the first liquid storage cavity and the second liquid storage cavity at the same time, and the liquid inlet is communicated with the first liquid storage cavity. The connecting piece is provided with a first liquid outlet, a second liquid outlet and a communicating pipeline, the first liquid outlet and the second liquid outlet are both arranged opposite to the air inlet, the first liquid outlet is communicated with the communicating pipeline and the first liquid storage cavity, the second liquid outlet is communicated with the communicating pipeline and the second liquid storage cavity, and the first liquid outlet is arranged opposite to the liquid inlet. Wherein the liquid in the first liquid storage cavity is located at a first liquid level, the liquid in the second liquid storage cavity is located at a second liquid level, the first liquid level is close to the air inlet relative to the second liquid level, and the liquid in the first liquid storage cavity and the liquid in the second liquid storage cavity circularly flow. Through the structure, sediment generated by liquid is reduced, and the printing quality is improved.

Description

Technical Field

[0001] The embodiments of the present application relate to the technical field of digital printing equipment, and in particular to an ink cartridge mechanism and a printing device. Background Art

[0002] Digital printing is a printing process that uses digital technology. Digital printing technology is a high-tech product that integrates machinery, computer electronic information technology and has gradually emerged with the continuous development of computer technology.

[0003] During the process of implementing this application, the inventors discovered that currently, digital printing equipment includes an ink cartridge comprising a top plate, an ink supply tube, a liquid storage chamber, and a liquid outlet. The ink supply tube extends from the top plate into the liquid storage chamber and extends below the liquid level within the liquid storage chamber to allow ink to flow out of the outlet. The liquid storage chamber is made of a transparent material to facilitate observation of the liquid level within the liquid storage chamber. However, in this structure, the outlet is located at the bottom, and replenished ink flows directly into the outlet. This prevents the ink from circulating within the liquid storage chamber, resulting in ink buildup and sedimentation, which in turn affects printing quality. Utility Model Content

[0004] The embodiments of the present application provide an ink cartridge mechanism and a printing device, which can improve the current situation where the liquid outlet is located at the bottom, the replenished ink flows directly into the liquid outlet, and the ink in the liquid storage chamber cannot circulate, resulting in ink generation and precipitation, which in turn affects the printing quality.

[0005] To solve the above-mentioned technical problems, the present application adopts a technical solution: providing an ink cartridge mechanism. The ink cartridge mechanism includes an ink cartridge assembly and a connector. The ink cartridge assembly is provided with a first liquid storage chamber, a second liquid storage chamber, an air inlet, and a liquid inlet. The air inlet is connected to both the first liquid storage chamber and the second liquid storage chamber, and the liquid inlet is connected to the first liquid storage chamber. The connector is provided with a first liquid outlet, a second liquid outlet, and a connecting pipe. The first liquid outlet and the second liquid outlet are both arranged opposite to the air inlet. The first liquid outlet connects the connecting pipe and the first liquid storage chamber, and the second liquid outlet connects the connecting pipe and the second liquid storage chamber. The first liquid outlet is arranged opposite to the liquid inlet. The liquid in the first liquid storage chamber is at a first liquid level, and the liquid in the second liquid storage chamber is at a second liquid level. The first liquid level is closer to the air inlet than the second liquid level, and the liquid in the first liquid storage chamber and the liquid in the second liquid storage chamber circulate.

[0006] Optionally, the ink cartridge assembly includes a first ink cartridge, the first liquid storage chamber is located within the first ink cartridge, the first ink cartridge includes an ink cartridge wall, and the ink cartridge wall extends in a direction from the air inlet to the first liquid outlet. The ink cartridge mechanism further includes an ink feed nozzle, the ink feed nozzle is located within the first liquid storage chamber, and the ink feed nozzle is disposed proximate to the ink cartridge wall, and at least partially extends toward the ink cartridge wall. The ink feed nozzle is configured to cause liquid to flow toward the ink cartridge wall when the liquid leaves the ink feed nozzle and enters the first liquid storage chamber, and then flow down along the ink cartridge wall into the liquid within the first liquid storage chamber.

[0007] Optionally, the ink cartridge assembly includes an upper cover, a first ink cartridge, and a second ink cartridge, wherein the upper cover, the first ink cartridge, and a connector together enclose the first liquid storage chamber, and the upper cover, the second ink cartridge, and the connector together enclose the second liquid storage chamber. The air inlet and the liquid inlet are provided on the upper cover.

[0008] Optionally, the ink cartridge mechanism further includes a liquid level gauge, which is mounted on the upper cover and extends toward the second liquid storage chamber, and is used to measure the liquid level of the liquid in the second liquid storage chamber.

[0009] Optionally, the upper cover is provided with a first sealing groove and a second sealing groove, and the connecting member is provided with a third sealing groove and a fourth sealing groove. The ink cartridge mechanism further includes a plurality of first sealing members and a plurality of second sealing members, wherein a first sealing member is provided between the first sealing groove and the first ink cartridge, a first sealing member is provided between the second sealing groove and the first ink cartridge, a second sealing member is provided between the third sealing groove and the second ink cartridge, and a second sealing member is provided between the fourth sealing groove and the second ink cartridge.

[0010] Optionally, the ink cartridge mechanism further includes a fixing assembly, the fixing assembly including a plurality of fixing columns, each of the fixing columns being connected between the upper cover plate and the connecting member, and the fixing columns being used to fix the ink cartridge assembly and the connecting member.

[0011] Optionally, the ink cartridge mechanism further includes a valve body assembly, the valve body assembly includes a plurality of solenoid valves, the solenoid valves are mounted on the connecting piece, and each of the solenoid valves is connected to the connecting pipe.

[0012] Optionally, the connector further comprises a third liquid outlet and a fourth liquid outlet, wherein one end of the third liquid outlet is connected to the first liquid storage chamber and the other end is connected to a portion of the solenoid valves. One end of the fourth liquid outlet is connected to the second liquid storage chamber and the other end is connected to another portion of the solenoid valves.

[0013] To solve the above technical problem, another technical solution adopted by the present application is to provide a printing device. The printing device includes the above ink cartridge mechanism.

[0014] The beneficial effects of the embodiments of the present application are as follows: Different from the prior art, the embodiments of the present application provide an ink cartridge mechanism. The ink cartridge mechanism includes an ink cartridge assembly and a connector. The ink cartridge assembly is provided with a first liquid storage chamber, a second liquid storage chamber, an air inlet, and a liquid inlet. The air inlet is connected to both the first liquid storage chamber and the second liquid storage chamber, and the liquid inlet is connected to the first liquid storage chamber. The connector is provided with a first liquid outlet, a second liquid outlet, and a connecting pipe. The first liquid outlet and the second liquid outlet are both arranged opposite to the air inlet. The first liquid outlet connects the connecting pipe and the first liquid storage chamber, and the second liquid outlet connects the connecting pipe and the second liquid storage chamber. The first liquid outlet is arranged opposite to the liquid inlet. The liquid in the first liquid storage chamber is at a first liquid level, and the liquid in the second liquid storage chamber is at a second liquid level. The first liquid level is closer to the air inlet than the second liquid level, and the liquid in the first liquid storage chamber and the liquid in the second liquid storage chamber circulate. Through the above structure, the liquid in the first liquid storage chamber can flow out through the first liquid outlet or flow to the second liquid storage chamber through the connecting pipe due to atmospheric pressure, and the liquid in the second liquid storage chamber can flow out from the second liquid outlet, so that the liquid in the first liquid storage chamber and the second liquid storage chamber can continue to circulate under the action of atmospheric pressure, reducing the precipitation of the liquid and thereby improving the printing quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following is a brief introduction to the drawings required for use in the embodiments of the present application. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on the drawings without creative work.

[0016] Figure 1 is a three-dimensional diagram of an ink cartridge mechanism provided in one embodiment of the present application;

[0017] Figure 2 is a half-section schematic diagram of an ink cartridge mechanism provided in one embodiment of the present application;

[0018] Figure 3 This is an exploded view of the ink cartridge mechanism provided in one embodiment of the present application.

[0019] Figure 4 This embodiment of the present application provides Figure 1 A-side cross-sectional view;

[0020] Figure 5 This embodiment of the present application provides Figure 1 B-side cross-section of;

[0021] Figure 6 This embodiment of the present application provides Figure 1 C-plane cross-section of

[0022] Figure 7 This is a partial three-dimensional view of an ink cartridge assembly provided in one embodiment of the present application.

[0023] The ink cartridge mechanism 1000 is denoted by the following reference numerals:

[0024] Cartridge components 100 Second liquid outlet 220 First liquid storage chamber 110 Connecting pipes 230 Second liquid storage chamber 120 The third sealing groove 240 air intake 130 Fourth sealing groove 250 Liquid inlet 140 The third liquid outlet 260 First ink cartridge 150 Fourth liquid outlet 270 Cartridge wall 151 Ink nozzle 300 Upper cover 160 Liquid level gauge 400 First sealing groove 161 First seal 500 Second sealing groove 162 Second seal 600 Second ink cartridge 170 Fixed components 700 Connectors 200 Fixed column 710 First liquid outlet 210 Air pressure terminal 800 DETAILED DESCRIPTION

[0025] In order to facilitate understanding of the present application, the present application is described in more detail below in conjunction with the accompanying drawings and specific embodiments. It should be noted that when an element is described as "fixed to" another element, it can be directly on the other element, or there can be one or more centered elements therebetween. When an element is described as "connected to" another element, it can be directly connected to the other element, or there can be one or more centered elements therebetween. The terms "vertical", "horizontal", "left", "right" and similar expressions used in this specification are for illustrative purposes only.

[0026] Unless otherwise defined, all technical and scientific terms used in this specification have the same meanings as those commonly understood by those skilled in the art to which this application belongs. The terms used in this specification and in the specification of this application are only for the purpose of describing specific embodiments and are not intended to limit this application. The term "and / or" as used in this specification includes any and all combinations of one or more of the relevant listed items.

[0027] The present application provides a printing device including an ink cartridge mechanism 1000. Currently, common ink cartridges have problems with internal ink not being able to circulate, which can easily cause sedimentation and affect print quality. Based on this, the present application makes the following improvements to the ink cartridge mechanism 1000 in the printing device.

[0028] For the aforementioned ink cartridge mechanism 1000, see Figures 1 to 3The ink cartridge mechanism 1000 includes an ink cartridge assembly 100 and a connector 200. The ink cartridge assembly 100 is provided with a first liquid storage chamber 110, a second liquid storage chamber 120, an air inlet 130, and a liquid inlet 140. The air inlet 130 is connected to both the first liquid storage chamber 110 and the second liquid storage chamber 120, and the liquid inlet 140 is connected to the first liquid storage chamber 110. The connector 200 is provided with a first liquid outlet 210, a second liquid outlet 220, and a connecting pipe 230. The first liquid outlet 210 and the second liquid outlet 220 are both arranged opposite to the air inlet 130. The first liquid outlet 210 is connected to the connecting pipe 230 and the first liquid storage chamber 110, and the second liquid outlet 220 is connected to the connecting pipe 230 and the second liquid storage chamber 120. The first liquid outlet 210 is arranged opposite to the liquid inlet 140. Among them, the liquid in the first liquid storage chamber 110 is at a first liquid level, and the liquid in the second liquid storage chamber 120 is at a second liquid level. The first liquid level is close to the air inlet 130 relative to the second liquid level, and the liquid in the first liquid storage chamber 110 and the liquid in the second liquid storage chamber 120 circulate.

[0029] Through the above structure, the first liquid storage chamber 110 and the second liquid storage chamber 120 are connected through the atmosphere, and by utilizing the atmospheric pressure, the liquid at the first liquid level will flow to the liquid at the second liquid level, thereby allowing the liquid in the first liquid storage chamber 110 and the second liquid storage chamber 120 to circulate, reducing the precipitation in the liquid, thereby improving the printing quality. Among them, the "first liquid level" and "second liquid level" mean that since the air inlet 130 needs to connect the first liquid storage chamber 110 and the second liquid storage chamber 120, and the connecting pipe 230 connects the first liquid storage chamber 110 and the second liquid storage chamber 120, the channel formed by the air inlet 130 in some embodiments is parallel to the channel formed by the connecting pipe 230, and the straight-line distance of the liquid level between the two pipes relative to the air inlet 130 is the above-mentioned first liquid level and second liquid level. It should still be noted that please refer to Figure 3 The opening in the middle C-pointing area is blocked by a limiting member in actual operation, thereby preventing liquid from flowing out of the opening in the C-pointing area and affecting the actual use of the ink cartridge assembly 100.

[0030] In some embodiments, see Figures 3 to 5In conjunction with other figures, the ink cartridge assembly 100 includes a first ink cartridge 150, a first liquid storage chamber 110 located within the first ink cartridge 150, and an ink cartridge wall 151 extending from the air inlet 130 toward the first liquid outlet 210. The ink cartridge assembly 1000 also includes an ink inlet nozzle 300, located within the first liquid storage chamber 110 and positioned adjacent to the ink cartridge wall 151, with at least a portion of the ink inlet nozzle 300 extending toward the ink cartridge wall 151. The inkjet nozzle 300 is configured to direct liquid toward the cartridge wall 151 when it leaves the inkjet nozzle 300 and enters the first liquid storage chamber 110, and then flow down along the cartridge wall 151 into the liquid within the first liquid storage chamber 110. This reduces the generation of bubbles when the liquid leaves the inkjet nozzle 300 and enters the liquid within the first liquid storage chamber 110, thereby reducing the presence of a large number of bubbles in the liquid and improving print quality by reducing the number of bubbles in the liquid. It will be understood that the cartridge wall 151 extends along a line perpendicular to the connecting conduit 230, and the inkjet nozzle 300 is positioned toward the cartridge wall 151 to direct the ink toward the cartridge wall 151 to prevent splashing. Optionally, "the ink inlet nozzle 300 at least partially extends toward the ink cartridge wall 151" means that the end of the ink inlet nozzle 300 near the ink outlet extends toward the ink cartridge wall 151, so that the sprayed ink can be directly sprayed to the ink cartridge wall 151 and flow down along the wall to the liquid surface of the first liquid storage chamber 110, thereby reducing ink splashing; or, the middle section of the ink inlet nozzle 300 near the ink outlet extends toward the ink cartridge wall 151, so that the ink inlet nozzle 300 can be arranged closer to the ink cartridge wall 151, thereby allowing the sprayed ink to be directly sprayed to the ink cartridge wall 151 and flow down along the wall to the liquid surface of the first liquid storage chamber 110, thereby reducing ink splashing.

[0031] In some embodiments, see Figure 3 , and in conjunction with other figures, the ink cartridge assembly 100 includes an upper cover 160, a first ink cartridge 150, and a second ink cartridge 170. The upper cover 160, the first ink cartridge 150, and the connector 200 together enclose the first liquid storage chamber 110, and the upper cover 160, the second ink cartridge 170, and the connector 200 together enclose the second liquid storage chamber 120. The air inlet 130 and the liquid inlet 140 are provided on the upper cover 160. Optionally, the first ink cartridge 150 and the second ink cartridge 170 can be integrally formed to facilitate mass production; alternatively, the first ink cartridge 150 and the second ink cartridge 170 can be designed as separate parts to facilitate disassembly and separate maintenance.

[0032] In some embodiments, see Figure 3, and in combination with other drawings, the ink cartridge mechanism 1000 also includes an air pressure terminal 800, which is installed on the upper cover 160 and is connected to the first liquid storage chamber 110, so that the air pressure terminal 800 can control the air pressure in the first liquid storage chamber 110, thereby improving the efficiency of ink circulation, thereby speeding up or slowing down the speed of liquid flowing from the first liquid storage chamber 110 to the second liquid storage chamber 120.

[0033] In some embodiments, see Figure 3 , and in conjunction with other figures, the ink cartridge mechanism 1000 further includes a liquid level gauge 400, which is mounted on the upper cover 160 and extends toward the second liquid storage chamber 120. The liquid level gauge 400 is used to measure the liquid level in the second liquid storage chamber 120. It can be understood that by measuring whether the liquid level in the second liquid storage chamber 120 is near the second liquid level, the ink nozzle 300 is controlled to continue ejecting ink.

[0034] In some embodiments, see Figure 3 and Figure 7 In conjunction with other figures, the upper cover 160 is provided with a first sealing groove 161 and a second sealing groove 162, and the connecting member 200 is provided with a third sealing groove 240 and a fourth sealing groove 250. The ink cartridge mechanism 1000 further includes a plurality of first sealing members 500 and a plurality of second sealing members 600. A first sealing member 500 is provided between the first sealing groove 161 and the first ink cartridge 150, a first sealing member 500 is provided between the second sealing groove 162 and the first ink cartridge 150, a second sealing member 600 is provided between the third sealing groove 240 and the second ink cartridge 170, and a second sealing member 600 is provided between the fourth sealing groove 250 and the second ink cartridge 170. It can be understood that the groove body of the first sealing groove 161 and the groove body of the second sealing groove 162 are adapted to the contour of the first ink cartridge 150, so that the first sealing component 500 can seal the first liquid storage chamber 110 to prevent ink leakage; the groove body of the third sealing groove 240 and the groove body of the fourth sealing groove 250 are adapted to the contour of the second ink cartridge 170, so that the second sealing component 600 can seal the second liquid storage chamber 120 to prevent ink leakage.

[0035] In some embodiments, see Figure 3 In conjunction with other figures, the ink cartridge mechanism 1000 further includes a fixing assembly 700, which includes a plurality of fixing posts 710. Each fixing post 710 is connected between the upper cover 160 and the connector 200. The fixing posts 710 are used to fix the ink cartridge assembly 100 and the connector 200. The provision of the fixing posts 710 improves the overall structural strength of the ink cartridge mechanism 1000 and reduces instability during operation.

[0036] In some embodiments, the ink cartridge mechanism 1000 further includes a valve assembly (not shown), which includes a plurality of solenoid valves (not shown). The solenoid valves are mounted on the connector 200, and each solenoid valve is connected to the communication line 230. Through this structure, the ink in the communication line 230 can be ejected according to the opening and closing of different solenoid valves, thereby improving printing quality.

[0037] In some embodiments, please refer to Figures 4 to 6 In conjunction with other figures, the connector 200 is further provided with a third liquid outlet 260 and a fourth liquid outlet 270. One end of the third liquid outlet 260 is connected to the first liquid storage chamber 110, and the other end is connected to some solenoid valves. One end of the fourth liquid outlet 270 is connected to the second liquid storage chamber 120, and the other end is connected to another part of the solenoid valves. This allows the third liquid outlet 260 to supply liquid in the first liquid storage chamber 110 to some solenoid valves, and the fourth liquid outlet 270 to supply liquid in the second liquid storage chamber 120 to another part of the solenoid valves. The function of the connector 200 is further explained in conjunction with the first liquid outlet 210 and the second liquid outlet 220. Under the action of atmospheric pressure, the liquid in the first liquid storage chamber 110 flows from the first liquid outlet 210 into the connecting pipe, and then flows into the second liquid storage chamber 120 through the second liquid outlet 220, thereby achieving liquid circulation between the first liquid storage chamber 110 and the second liquid storage chamber 120, improving the efficiency of liquid circulation flow and further reducing the impact of liquid precipitation on printing quality. The third liquid outlet 260 and the fourth liquid outlet 270 are provided. While the liquid in the first liquid storage chamber 110 and the second liquid storage chamber 120 is circulating, it can also be supplied to the solenoid valve to achieve the inkjet printing function. Optionally, the number of third liquid outlets 260 can be one or more to accommodate different numbers of solenoid valves; the number of fourth liquid outlets 270 can be one or more to accommodate different numbers of solenoid valves.

[0038] In combination with the above embodiments, the method of using the ink cartridge mechanism 1000 in this application is further described: Figure 2 As shown in other figures, a connecting pipe 230 is provided in the connector 200. Under the action of atmospheric pressure, the ink in the first liquid storage chamber 110 can enter the connecting pipe 230 from the first liquid outlet 210 and then flow into the second liquid storage chamber 120. When the liquid level meter 400 detects the second liquid level, the first liquid storage chamber 110 and the second liquid storage chamber 120 on both sides reach a liquid level balance. When the liquid level meter 400 detects that the liquid level in the second liquid storage chamber 120 is insufficient, the external liquid pump will continue to replenish ink into the first liquid storage chamber 110 through the ink inlet nozzle 300, repeating the above-mentioned circulation of ink flow to achieve the purpose of circulation. Figure 4 and Figure 5As shown in the other figures, during operation of the ink cartridge mechanism 1000, ink in the first and second liquid storage chambers 110, 120 circulates along the first liquid outlet 210, the connecting pipe 230, and the second liquid outlet 220, and flows to the solenoid valves through the third and fourth liquid outlets 260, 270, respectively. Specifically, the bottom of the connector 200 is connected to several solenoid valves, and the bottom of the connector 200 has several liquid outlets corresponding to the solenoid valves. During operation, the air pressure terminal 800 controls the ink in the first and second liquid storage chambers 110, 120 to flow through the solenoid valves into the printhead; when not in operation, the solenoid valves are closed. The liquid in the first and second liquid storage chambers 110, 120 is constantly circulating during operation, reducing condensation.

[0039] In an embodiment of the present application, an ink cartridge mechanism 1000 is provided. The ink cartridge mechanism 1000 includes an ink cartridge assembly 100 and a connector 200. The ink cartridge assembly 100 is provided with a first liquid storage chamber 110, a second liquid storage chamber 120, an air inlet 130, and a liquid inlet 140. The air inlet 130 is connected to both the first liquid storage chamber 110 and the second liquid storage chamber 120, and the liquid inlet 140 is connected to the first liquid storage chamber 110. The connector 200 is provided with a first liquid outlet 210, a second liquid outlet 220, and a connecting pipe 230. The first liquid outlet 210 and the second liquid outlet 220 are both arranged opposite to the air inlet 130. The first liquid outlet 210 is connected to the connecting pipe 230 and the first liquid storage chamber 110, and the second liquid outlet 220 is connected to the connecting pipe 230 and the second liquid storage chamber 120. The first liquid outlet 210 is arranged opposite to the liquid inlet 140. The liquid in the first liquid storage chamber 110 is at a first liquid level, and the liquid in the second liquid storage chamber 120 is at a second liquid level. The first liquid level is closer to the air inlet 130 than the second liquid level, and the liquid in the first liquid storage chamber 110 and the liquid in the second liquid storage chamber 120 circulate. Through the above structure, the liquid in the first liquid storage chamber 110 can flow out through the first liquid outlet 210 or flow into the second liquid storage chamber 120 through the connecting pipe 230 due to atmospheric pressure. The liquid in the second liquid storage chamber 120 can flow out from the second liquid outlet 220, so that the liquids in the first liquid storage chamber 110 and the second liquid storage chamber 120 can continue to circulate under the action of atmospheric pressure, reducing the precipitation of the liquids and thereby improving the printing quality.

[0040] Based on the same inventive concept, the present application also provides an embodiment of a printing device, which includes the above-mentioned ink cartridge mechanism 1000. The structure and function of the ink cartridge mechanism 1000 can be referred to the above-mentioned embodiment, and will not be described in detail here.

[0041] It should be noted that the preferred embodiments of the present application are given in the specification and drawings of this application. However, the present application can be implemented in many different forms and is not limited to the embodiments described in this specification. These embodiments are not intended to be additional limitations on the content of this application. The purpose of providing these embodiments is to make the understanding of the disclosure of this application more thorough and comprehensive. In addition, the above-mentioned technical features can be combined with each other to form various embodiments not listed above, which are all considered to be within the scope of the description of this application; further, it is obvious to those skilled in the art that improvements or changes can be made based on the above description, and all such improvements and changes should fall within the scope of protection of the claims attached to this application.

Claims

1. An ink cartridge mechanism, characterized in that: include: An ink cartridge assembly is provided with a first liquid storage chamber, a second liquid storage chamber, an air inlet, and a liquid inlet, wherein the air inlet is connected to both the first liquid storage chamber and the second liquid storage chamber, and the liquid inlet is connected to the first liquid storage chamber; a connecting member, provided with a first liquid outlet, a second liquid outlet, and a connecting pipe, wherein the first liquid outlet and the second liquid outlet are both arranged opposite to the air inlet, the first liquid outlet connects the connecting pipe and the first liquid storage cavity, the second liquid outlet connects the connecting pipe and the second liquid storage cavity, and the first liquid outlet is arranged opposite to the liquid inlet; Among them, the liquid in the first liquid storage chamber is at a first liquid level, and the liquid in the second liquid storage chamber is at a second liquid level. The first liquid level is close to the air inlet relative to the second liquid level, and the liquid in the first liquid storage chamber and the liquid in the second liquid storage chamber circulate.

2. The ink cartridge mechanism according to claim 1, wherein: The ink cartridge assembly includes a first ink cartridge, the first liquid storage chamber is located in the first ink cartridge, the first ink cartridge includes an ink cartridge wall, and the ink cartridge wall is extended in a direction from the air inlet to the first liquid outlet; The ink cartridge mechanism also includes an ink feed nozzle, which is located in the first liquid storage chamber and is arranged close to the ink cartridge wall. The ink feed nozzle at least partially extends toward the ink cartridge wall. The ink feed nozzle is used to cause the liquid to flow toward the ink cartridge wall when the liquid leaves the ink feed nozzle and enters the first liquid storage chamber, and then flow down along the ink cartridge wall into the liquid in the first liquid storage chamber.

3. The ink cartridge mechanism according to claim 1, wherein: The ink cartridge assembly includes an upper cover, a first ink cartridge, and a second ink cartridge. The upper cover, the first ink cartridge, and a connector together enclose the first liquid storage chamber. The upper cover, the second ink cartridge, and the connector together enclose the second liquid storage chamber. The air inlet and the liquid inlet are arranged on the upper cover plate.

4. The ink cartridge mechanism according to claim 3, characterized in that: The ink cartridge mechanism further includes a liquid level gauge, which is mounted on the upper cover plate and extends toward the second liquid storage cavity. The liquid level gauge is used to measure the liquid level of the liquid in the second liquid storage cavity.

5. The ink cartridge mechanism according to claim 3, characterized in that: The upper cover is provided with a first sealing groove and a second sealing groove, and the connecting member is provided with a third sealing groove and a fourth sealing groove; The ink cartridge mechanism also includes multiple first seals and multiple second seals, one first seal is arranged between the first sealing groove and the first ink cartridge, one first seal is arranged between the second sealing groove and the first ink cartridge, one second seal is arranged between the third sealing groove and the second ink cartridge, and one second seal is arranged between the fourth sealing groove and the second ink cartridge.

6. The ink cartridge mechanism according to claim 3, wherein: The ink cartridge mechanism further includes a fixing assembly, which includes a plurality of fixing columns. Each of the fixing columns is connected between the upper cover plate and the connecting member, and the fixing columns are used to fix the ink cartridge assembly and the connecting member.

7. The ink cartridge mechanism according to any one of claims 1 to 6, characterized in that: The ink cartridge mechanism further includes a valve body assembly, which includes a plurality of solenoid valves. The solenoid valves are installed on the connecting piece, and each of the solenoid valves is connected to the communication pipeline.

8. The ink cartridge mechanism according to claim 7, wherein: The connecting member is further provided with a third liquid outlet and a fourth liquid outlet, one end of the third liquid outlet is communicated with the first liquid storage chamber, and the other end is communicated with part of the solenoid valve; One end of the fourth liquid outlet is communicated with the second liquid storage chamber, and the other end is communicated with another part of the solenoid valve.

9. A printing device, characterized in that: Comprising an ink cartridge mechanism as described in any one of claims 1-8.

Images