Ink box

By wrapping a constant temperature chamber around the ink cartridge and setting up circulation pipes on both sides of the ink inlet, the problem of insufficient ink temperature regulation in non-circulating ink cartridges is solved, achieving effective control of ink temperature, improving print quality and saving energy.

CN223520473UActive Publication Date: 2025-11-07SHENZHEN RUNTIANZHI DIGITAL EQUIP
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Patent Information

Application Number
CN202422983705.1
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-04
Publication Date
2025-11-07
Estimated Expiration
2034-12-04

AI Technical Summary

Technical Problem

In existing technologies, non-recirculating ink cartridges fail to heat or cool the ink in a timely manner during rapid printing, resulting in a decline in print quality.

Method used

A constant temperature chamber is wrapped around the outside of the ink cartridge, and circulation pipelines are set on both sides of the ink inlet. The constant temperature liquid is used to pre-regulate the ink to ensure that the ink reaches the target temperature before entering the printhead.

Benefits of technology

It effectively regulates ink temperature, improves print quality, avoids energy waste, and is suitable for both recycle and non-recycle ink cartridges.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model is suitable for the technical field of digital printing, and provides an ink box, which comprises an ink box body, an ink cavity is arranged in the middle of the ink box body, the ink cavity is provided with an ink inlet and an ink outlet, a constant-temperature cavity is wrapped outside the ink cavity, the constant-temperature cavity is provided with a partition area, the constant-temperature cavity is provided with a circulating liquid inlet and a circulating liquid outlet, and the ink inlet is communicated with the outside of the ink box body through the partition area; the ink box body is at least provided with circulation pipelines on the two opposite side faces of the ink inlet respectively, each circulation pipeline is provided with an inlet communicated with the starting end of the circulation pipeline and an outlet communicated with the terminating end of the circulation pipeline, the inlet of the circulation pipeline arranged on one side of the ink inlet is used for feeding ink, and the outlet is communicated with the inlet of the other adjacent circulation pipeline. An outlet of the circulation pipeline arranged on the other side of the ink inlet is communicated with the ink inlet, and an inlet of the circulation pipeline is communicated with an outlet of another circulation pipeline adjacent to the circulation pipeline. The ink temperature adjusting device is not only suitable for temperature adjustment of ink needing circulation, but also capable of adjusting the temperature of non-circulation ink, and the ink temperature adjusting effect is remarkable.
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Description

TECHNICAL FIELD

[0001] The utility model belongs to digital printing technical field, especially relate to an ink cartridge. BACKGROUND

[0002] The ink cartridge of digital printing equipment is roughly divided into two kinds according to the ink flow direction, one is circulating ink cartridge, that is, the equipment is equipped with main ink cartridge and circulating ink cartridge, the main ink cartridge is communicated with the input end of the nozzle, the circulating ink cartridge is communicated with the output end of the nozzle, and the ink is circulated from the main ink cartridge to the nozzle and returns to the circulating ink cartridge;The other is non-circulating ink cartridge, that is, the equipment is only equipped with main ink cartridge, and the ink is directly sprayed from the nozzle for printing after entering the nozzle from the main ink cartridge, and the ink is not circulated from the nozzle to the ink cartridge again.The working temperature of the ink is required to be high when the digital printing equipment is working normally, that is, the temperature of the ink needs to be kept constant at a certain temperature, and the ink is prone to dry out when the temperature is too high, and the flowability of the ink is poor when the temperature is too low, and the printing quality is affected when the temperature of the ink is too high or too low.In the prior art, for the circulating ink cartridge, since the ink is circulated from the nozzle to the ink cartridge, heating and / or cooling device can be arranged on the circulating ink path on both sides of the nozzle input end and output end to adjust the constant temperature of the ink, but for the non-circulating ink cartridge, even if the heating or cooling device is arranged on the ink path, since no circulation is generated, the ink enters the nozzle before being heated or cooled during the rapid printing process, so that the temperature adjusting effect is very small, and the printing effect is also affected. CONTENT

[0003] The ink cartridge provided by the utility model aims at solving the problem that the non-circulating ink cartridge in the prior art cannot well adjust the constant temperature of the ink, thereby affecting the printing effect.

[0004] The utility model is realized in this way, an ink cartridge, comprising:

[0005] The ink cartridge body, wherein the middle part is provided with an ink chamber, the ink chamber is provided with an ink inlet and an ink outlet, the ink inlet is used for communicating with the ink source, the ink chamber is wrapped outside with a constant temperature chamber for containing constant temperature liquid, the constant temperature chamber is provided with a partition area, the partition area extends from the top to the bottom of the ink chamber, the constant temperature chamber is provided with a circulating liquid inlet and a circulating liquid outlet on the opposite sides of the partition area, and the ink inlet is communicated with the outside of the ink cartridge body through the partition area;

[0006] The ink cartridge body is provided with circulation pipes on at least two opposite sides of the ink inlet, the circulation pipes are located on the side of the constant temperature cavity away from the ink cavity, each circulation pipe is provided with an inlet communicating with the starting end of the circulation pipe and an outlet communicating with the terminal end of the circulation pipe, the inlet of the circulation pipe on one side of the ink inlet is used for ink inlet, the outlet on one side of the ink inlet communicates with the inlet of another adjacent circulation pipe, the outlet of the circulation pipe on the other side of the ink inlet communicates with the ink inlet, and the inlet of the circulation pipe on the other side of the ink inlet communicates with the outlet of another adjacent circulation pipe.

[0007] Further, the circulation pipes are wave-shaped or back-shaped.

[0008] Further, the wave-shaped or back-shaped circulation pipes extend from the bottom of the ink cavity to the top of the ink cavity in a first direction and extend from one side of the ink cartridge body to the opposite side in a second direction, and the first direction and the second direction are perpendicular.

[0009] Further, the ink inlet is arranged at the bottom of the side wall of the ink cartridge.

[0010] Further, the outlet or the inlet of one of the two circulation pipes communicating with each other is arranged close to the inlet or the outlet of the other circulation pipe.

[0011] Further, a groove is arranged on the outer side of the ink cartridge body, a cover plate is arranged on the groove of the ink cartridge body, and the cover plate and the groove form the circulation pipe.

[0012] Further, a base plate is arranged on the outer side of the ink cartridge body, a groove is arranged on the first side of the base plate facing the outside of the ink cartridge body, and a cover plate is arranged on the groove of the base plate, and the cover plate and the groove form the circulation pipe.

[0013] Further, an annular groove is arranged around the groove, a sealing member is arranged in the annular groove, and the sealing member abuts against the cover plate.

[0014] Further, the ink cartridge body is a prism structure, the side of the prism structure is N, the constant temperature cavity is wrapped on N-1 sides of the ink cartridge body, and the remaining one side is the partition area of the constant temperature cavity.

[0015] Further, the ink cartridge body is a prism structure, the constant temperature cavity is wrapped on all sides of the ink cartridge body, and the partition area is arranged on one of the sides.

[0016] The utility model discloses an advantageous effect reached through the constant temperature cavity of wrapping in the ink cavity outside, when using the ink box, the circulation liquid inlet of constant temperature cavity is connected with constant temperature water circulation system and makes constant temperature liquid into constant temperature cavity and fills entire constant temperature cavity, and then from the circulation liquid outlet of constant temperature cavity returns to constant temperature water circulation system, and the circulation of constant temperature liquid in constant temperature cavity is realized, and constant temperature cavity can keep at a constant temperature, and the ink in the ink cavity wrapped in constant temperature cavity can keep in a certain temperature through the constant temperature liquid in constant temperature cavity, and the ink box body is provided with at least two circulation pipelines outside constant temperature cavity, and before the ink enters the ink cavity, at least two circulation pipelines on both sides of the ink inlet are used to preadjust by constant temperature cavity, and the ink in the ink cavity basically reaches the constant temperature of the ink, and then the ink in the ink cavity is kept by the constant temperature cavity wrapped outside the ink cavity, so that the temperature of the ink from the ink outlet of the ink cavity into the nozzle reaches the target condition, and the effective temperature adjustment of the ink is realized, and the circulation pipeline is arranged on the side of constant temperature cavity away from the ink cavity, the heat brought by constant temperature liquid circulation can be used to preadjust the ink, and the energy can be used sufficiently, and the energy waste is avoided. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is a kind of structure schematic diagram that the utility model provides a kind of ink box and constant temperature water circulation system and nozzle connection;

[0018] Figure 2 It is a kind of ink box external structure schematic diagram that the utility model provides;

[0019] Figure 3 It is a kind of ink box exploded schematic diagram that the utility model provides;

[0020] Figure 4 It is a kind of ink box body structure diagram of ink box that the utility model provides;

[0021] Figure 5 It is another view structure diagram of the ink box body of ink box that the utility model provides;

[0022] Figure 6 It is a kind of exploded schematic diagram of another embodiment of ink box that the utility model provides.

[0023] EXPLANATION OF DRAWINGS:

[0024] 1, ink box body;1a, base;1b, top plate;11, ink cavity;111, ink inlet;112, ink outlet;113, pressure discharge port;12, constant temperature cavity;12a, partition area;121, circulation liquid inlet;122, circulation liquid outlet;2, circulation pipeline;21, inlet;22, outlet;3, cover plate;4, base plate;5, annular groove;6, pressure sensor;7, pipe joint;8, pipe fitting;10, constant temperature water circulation system;20, nozzle. DETAILED DESCRIPTION

[0025] In order to make the purpose, technical scheme and advantages of the utility model more clearly, the following will make further detailed description to the utility model combining with the drawings and examples. It should be understood that the specific examples described here are only used to explain the utility model, and are not used to limit the utility model.

[0026] Referring to Figures 1-5The utility model discloses an ink box, including ink box body 1, the middle part of ink box body 1 is equipped with ink chamber 11, ink chamber 11 is used to accommodate ink, ink chamber 11 is equipped with ink inlet 111 and ink outlet 112, ink inlet 111 is communicated with ink source (for example ink barrel), to make ink can continuously transport to ink chamber 11, ink outlet 112 is communicated with the ink ejection head 20, to make that ink is input from ink chamber 11 ink ejection head 20, ink ejection head 20 is inked to printing medium to realize printing, the outside of ink chamber 11 is wrapped with the constant temperature chamber 12 for accommodating constant temperature liquid, the constant temperature chamber 12 is equipped with the partition area 12a, and the partition area 12a extends from the top to the bottom of ink chamber 11, and the constant temperature chamber 12 is located at the opposite sides of the partition area 12a respectively and is equipped with circulating liquid inlet 121 and circulating liquid outlet 122, and circulating liquid inlet 121 and circulating liquid outlet 122 are used to connect constant temperature water circulating system 10 to make constant temperature liquid realize circulation in constant temperature chamber 12, and setting the partition area 12a can avoid that constant temperature chamber 12 forms a closed loop structure, to ensure that the constant temperature liquid flow path between circulating liquid inlet 121 and circulating liquid outlet 122 is unique and maximum range to wrap ink chamber 11, ink inlet 111 is communicated with the outside of ink box body 1 through the partition area 12a to avoid that ink inlet 111 passes through constant temperature chamber 12 leads to need to set the ink outlet channel in constant temperature chamber 12 to hinder the circulation of constant temperature liquid in constant temperature chamber 12, which is also simplified structure and reduces installation difficulty, and ink box body 1 is at least located on the opposite sides of ink inlet 111 respectively and is equipped with circulating pipeline 2, and circulating pipeline 2 is located at the side of constant temperature chamber 12 away from ink chamber 11, and each circulating pipeline 2 is equipped with the inlet 21 connected with the starting end of circulating pipeline 2 and the outlet 22 connected with the terminal end of circulating pipeline 2, and the inlet 21 of the circulating pipeline 2 on one side of ink inlet 111 is used to enter ink, and the outlet 22 of the circulating pipeline 2 on one side of ink inlet 111 is connected with the inlet 21 of another adjacent circulating pipeline 2, and the outlet 22 of the circulating pipeline 2 on the other side of ink inlet 111 is communicated with ink inlet 111, and the inlet 21 of the circulating pipeline 2 on the other side of ink inlet 111 is communicated with the outlet 22 of another adjacent circulating pipeline 2, in this way, one circulating pipeline 2 on one side of ink inlet 111 can be used to enter the circulating pipeline 2 through the inlet 21 of the circulating pipeline 2 before ink enters ink chamber 11, and the ink in the circulating pipeline 2 can be preliminarily heated or cooled by the constant temperature liquid in constant temperature chamber 12, and finally enters the inlet 21 of another circulating pipeline 2 on the other side of ink inlet 111 and enters the circulating pipeline 2 after coming out from the outlet 22 of the circulating pipeline 2, and the temperature of the ink in the circulating pipeline 2 basically reaches the target temperature during the operation in the circulating pipeline 2, and finally enters ink inlet 111 through the outlet 22 of another circulating pipeline 2 on the other side of ink inlet 111 to enter ink chamber 11, and the constant temperature liquid in constant temperature chamber 12 around ink chamber 11 completely adjusts the ink in ink chamber 11 to the temperature required for printing.

[0027] By wrapping the constant temperature cavity 12 outside the ink cavity 11, when using the ink cartridge, the circulating inlet 121 of the constant temperature cavity 12 is communicated with the constant temperature water circulating system 10, so that the constant temperature liquid enters the constant temperature cavity 12 and fills the entire constant temperature cavity 12, and then returns to the constant temperature water circulating system 10 from the circulating outlet 122 of the constant temperature cavity 12, so that the circulation of the constant temperature liquid in the constant temperature cavity 12 is realized, and the constant temperature cavity 12 can be kept at a constant temperature. The ink in the ink cavity 11 wrapped in the constant temperature cavity 12 can be kept at a certain temperature by the constant temperature liquid in the constant temperature cavity 12, and the ink cartridge body 1 is provided with at least two circulating pipelines 2 outside the constant temperature cavity 12. Before the ink enters the ink cavity 11, at least two circulating pipelines 2 located on both sides of the ink inlet 111 are used to pre-adjust by the constant temperature cavity 12, so that the ink entering the ink cavity 11 basically reaches the constant temperature of the ink. The ink in the ink cavity 11 is maintained by the constant temperature cavity 12 wrapped outside the ink cavity 11, so that the ink entering the ink outlet 112 of the ink cavity 11 into the ink head 20 reaches the target condition of the ink temperature, so as to effectively adjust the temperature of the ink. At the same time, the circulating pipeline 2 is arranged on the side of the constant temperature cavity 12 away from the ink cavity 11, which can effectively utilize the heat brought by the constant temperature liquid circulation to pre-adjust the ink, effectively utilize the energy, and avoid energy waste.

[0028] The ink cartridge provided by the utility model is widely applicable, is not only applicable to the temperature adjustment of circulating ink, but also applicable to the temperature adjustment of non-circulating ink, and has remarkable ink temperature adjustment effect.

[0029] The "adjacent circulation pipeline 2" refers to the inlet 21 of the circulation pipeline 2 on one side of the ink inlet 111 is connected to the ink source, and the outlet 22 is connected to the inlet 21 of the circulation pipeline 2 on the other side of the ink inlet 111 when the circulation pipeline 2 is arranged on the opposite sides of the ink cartridge body 1. When the circulation pipeline 2 is arranged on the other side of the ink cartridge body 1 except the opposite sides of the ink inlet 111, the inlet 21 of the circulation pipeline 2 on one side of the ink inlet 111 is connected to the ink source, and the outlet 22 is connected to the inlet 21 of another circulation pipeline 2 on the opposite sides of the ink inlet 111. The outlet 22 of the other circulation pipeline 2 is connected to the inlet 21 of the circulation pipeline 2 on the other side of the ink inlet 111. The same applies to the circulation pipeline 2 arranged on the other side of the ink cartridge body 1 except the opposite sides of the ink inlet 111, i.e. when there is one, two, three, or more circulation pipelines 2 arranged on the other side of the ink cartridge body 1 except the opposite sides of the ink inlet 111, the circulation pipeline 2 on one side of the ink inlet 111 is connected to the one, two, three, or more circulation pipelines 2 in sequence, and finally connected to the circulation pipeline 2 on the other side of the ink inlet 111. The design scheme provides at least two circulation pipelines 2, which can be used to preliminarily regulate the temperature of the ink by one circulation pipeline 2, and finally regulate the temperature of the ink by another circulation pipeline 2 before the ink enters the ink chamber 11, so that the temperature of the ink in the circulation pipeline 2 is close to the required temperature of the ink, and the final regulation of the temperature of the ink chamber 11 by the constant-temperature chamber 12 can achieve the required target temperature of the ink. The number of circulation pipelines 2 can be determined according to the size of the actual ink cartridge body 1 and the influence of the current environmental temperature (such as overcooling or overheating) on the actual temperature of the ink, which leads to the temperature difference between the target temperature.

[0030] Referring to Figure 3 Further, the circulation pipeline 2 is in a wave shape or a back shape (not shown in the figure), and the wave-shaped or back-shaped circulation pipeline 2 can extend the ink conveying path in a limited space, so that the temperature of the ink can be fully pre-regulated.

[0031] Further, the wave-shaped or back-shaped circulation pipeline 2 extends from the bottom of the ink chamber 11 to the top of the ink chamber 11 in a first direction, and extends from one side of the ink cartridge body 1 to the opposite side in a second direction. The first direction and the second direction are perpendicular, so that the circulation pipeline 2 can be maximally arranged on the side surface of the ink cartridge body 1, thereby reasonably utilizing the constant-temperature liquid in the constant-temperature chamber 12 to pre-regulate the temperature of the ink.

[0032] It should be noted that the wave shape can be longitudinally extending as shown in the drawings, or can be transversely extending, as long as the purpose of extending the circulation pipeline 2 is achieved. The starting end and the ending end of the loop-shaped circulation pipeline 2 can be arranged outside the loop shape, so that the inlet 21 and the outlet 22 of the circulation pipeline 2 can be arranged near the edge of the side surface of the ink cartridge body 1, facilitating the communication between the circulation pipelines 2.

[0033] Referring to Figure 3 , Figure 5 Further, the ink inlet 111 is arranged at the bottom of the side wall of the ink cartridge, so that when the ink enters the ink cavity 11, the liquid level of the ink cavity 11 slowly rises from the bottom to the top, so that the ink in the ink cavity 11 can be kept in a calm state, avoiding the ink from falling from the top to the bottom, causing the ink to splash everywhere and generate bubbles, thereby affecting the printing effect. The outlet 22 of the circulation pipeline 2 connected with the ink inlet 111 is arranged on one side close to the ink inlet 111, so as to facilitate the communication between the outlet 22 of the circulation pipeline 2 and the ink inlet 111.

[0034] Referring to Figure 2 , Figure 3 Specifically, the ink inlet 111, the outlet 22 connected with the ink inlet 111, the circulation inlet 121, and the circulation outlet 122 can be connected with the pipe joint 7, so as to connect the pipe 8 (see Figure 6 ) with other components.

[0035] Further, the outlet 22 or the inlet 21 of one of the two circulation pipelines 2 connected with each other is arranged close to the inlet 21 or the outlet 22 of the other circulation pipeline 2, so as to facilitate the communication between the outlet 22 or the inlet 21 of one of the two adjacent circulation pipelines 2 and the inlet 21 or the outlet 22 of the other circulation pipeline 2.

[0036] Referring to Figures 2-4 Specifically, the outer side surface of the ink cartridge body 1 is provided with a groove, and the ink cartridge body 1 is covered with a cover plate 3 on the groove, and the cover plate 3 and the groove form the circulation pipeline 2. In this way, the production and processing of the circulation pipeline 2 can be facilitated.

[0037] Referring to Figure 6Specifically, the groove can be directly formed on the side wall of the ink cartridge body 1. In this way, the circulation pipeline 2 can be directly processed on the ink cartridge body 1 when the ink cartridge body 1 is produced and processed, so that the circulation pipeline 2 and the ink cartridge body 1 form a whole better, and the number of parts is saved. When this scheme is adopted, two adjacent circulation pipelines 2 can directly form a channel in the side wall of the ink cartridge body 1 to make the inlet 21 or the outlet 22 of one circulation pipeline 2 communicate with the outlet 22 or the inlet 21 of the other circulation pipeline 2, so as to avoid the complexity of installing the circulation pipeline 2 on the inlet 21 / outlet 22 through the external pipe joint 7 and then communicating through the pipe 8. The ink cartridge body 1 can also reduce the number of external connecting parts, so that the external structure is more simple.

[0038] Referring to Figure 3 In addition, the groove can also be formed on the base plate 4, and then the base plate 4 is fixed on the ink cartridge body 1. In this way, the number of circulation pipelines 2 can be increased according to actual needs during the use of the rear end of the ink cartridge body 1. For example, in addition to the circulation pipelines 2 arranged on the opposite sides of the ink inlet 111, circulation pipelines 2 can also be arranged on other sides to further extend the total stroke of the circulation pipeline 2, so as to better adapt to the temperature adjustment of the ink in extreme weather (overcooling or overheating). When this scheme is adopted, the inlet 21 / outlet 22 can be formed on the base plate 4 or the cover plate 3 to respectively communicate with the starting end and the ending end of the groove, and then the pipe joint 7 is installed on the inlet 21 / outlet 22 and the two adjacent circulation pipelines 2 are communicated through the pipe 8. This communication mode using the pipe joint 7 and the pipe 8 can set the positions of the inlet 21 and the outlet 22 according to needs, and the installation is more flexible.

[0039] It should be noted that the groove can be provided with a corresponding wave shape or a back-shaped structure.

[0040] Referring to Figure 3 Further, the groove is externally provided with an annular groove, and a sealing element (not shown in the figure) is arranged in the annular groove. The sealing element abuts against the cover plate 3. In this way, the sealing between the cover plate 3 and the groove can be realized, and liquid leakage can be avoided.

[0041] Further, the ink cartridge body 1 is a prismatic structure, and the prismatic structure makes the side surfaces of the ink cartridge body 1 be flat surfaces, which is convenient for processing various structures of the circulation pipeline.

[0042] Embodiment one

[0043] Referring to Figure 1 , Figure 5Specifically, the side of the prism structure is N, the constant temperature cavity 12 is wrapped on N-1 side of the ink cartridge body 1, and the remaining one side is the partition area 12a of the constant temperature cavity 12. In this way, the space occupation of the constant temperature cavity 12 on the side where the partition area 12a is located can be reduced, and the capacity of the ink chamber 11 can be maximized in the limited volume of the ink cartridge body 1.

[0044] Embodiment two

[0045] Reference Figure 6 As another embodiment, specifically, in addition to the structure of the above-mentioned embodiment one, the constant temperature cavity 12 can also be wrapped on all sides of the ink cartridge body 1, and the partition area 12a is arranged on one of the sides. In this way, the constant temperature cavity 12 can wrap the ink chamber 11 in the largest range, and compared with embodiment one, embodiment two can further improve the temperature regulation effect of the constant temperature cavity 12 on the ink in the ink chamber 11. It should be noted that both embodiment one and embodiment two can meet the regulation of the target temperature required by the ink, so different schemes of the constant temperature cavity 12 can be selected according to actual needs.

[0046] Specifically, the prism structure can be a three-prism, a four-prism, a five-prism, etc., which can be selected according to actual needs. In this embodiment, a four-prism structure is selected, which is convenient for processing on the one hand, and the capacity of the ink chamber 11 inside the ink cartridge body 1 of the same volume can be maximized on the other hand. Two circulation pipelines 2 can be arranged on the sides of the ink cartridge body 1 located on the opposite sides of the ink inlet 111, and three circulation pipelines 2 can also be arranged. The three circulation pipelines 2 can be arranged on the other three sides of the ink cartridge body 1 except the side where the ink inlet 111 is located. The three circulation pipelines 2 are sequentially connected, and the constant temperature cavity 12 can be arranged by using the schemes of the above-mentioned embodiment one or embodiment two. The circulation pipeline 2 can be arranged by using one of the above-mentioned two schemes, which can be selected according to actual needs. When the number of prism sides increases, that is, the number of sides is greater than four, in addition to being arranged on the sides of the ink cartridge body 1 located on the opposite sides of the ink inlet 111, the circulation pipeline 2 can be arranged on all or part of the remaining sides except the side where the ink inlet 111 is located, so as to shorten the temperature difference of the ink when the circulation pipeline 2 on one side of the ink inlet 111 enters the circulation pipeline 2 on the other side of the ink inlet 111, thereby better regulating the temperature of the ink.

[0047] Further, the top of the ink chamber 11 is provided with a pressure relief port 113 and a pressure sensor 6. The pressure sensor 6 is used to detect the pressure inside the ink chamber 11, and the pressure relief port 113 is used to relieve pressure when the pressure inside the ink chamber 11 is too high. In this way, the ink cartridge can be maintained within a stable pressure range during use, thereby ensuring the printing effect. The pressure relief port 113 can also be provided with a pipe joint 7 and connected to the external structure through a pipe 8.

[0048] Specifically, the ink cartridge body 1 includes a base 1a and a top plate 1b, the ink cavity 11, the constant temperature cavity 12, the ink inlet 111, the ink outlet 112, the circulating liquid inlet 121, the circulating liquid outlet 122, the circulating pipeline 2, the inlet 21 and the outlet 22 are all arranged on the base 1a, the pressure relief port 113 is arranged on the top plate 1b, the pressure sensor 6 extends out of the ink cartridge body 1 through the top plate 1b, an opening is arranged above the base 1a, and the top plate 1b covers the opening to seal the ink cavity 11 and the constant temperature cavity 12, annular grooves 5 are arranged around the top of the ink cavity 11 and the constant temperature cavity 12, sealing members (not shown in the figure) are arranged in the annular grooves 5, and the top plate 1b and the base 1a are sealed between the constant temperature cavity 12 and the ink cavity 11.

[0049] In the embodiment, the ink cartridge body 1 can be made of transparent material, the transparent material can facilitate observation of the ink capacity in the ink cavity through the partition area, so that the input rate of the ink can be adjusted in real time, the transparent material can be but is not limited to acrylic plate, the acrylic plate has slow heat dissipation, so that the heat loss rate of the constant temperature liquid in the circulation can be reduced, and better constant temperature effect can be achieved.

[0050] The above only describes the preferred embodiments of the utility model, and is not used to limit the utility model, and any modification, equivalent replacement and improvement within the spirit and principle of the utility model should be included in the protection scope of the utility model.

Claims

1. An ink cartridge, characterized by, The ink cartridge comprises: an ink cartridge body, wherein a part of the ink cartridge body is provided with an ink cavity, the ink cavity is provided with an ink inlet and an ink outlet, the ink inlet is used for communicating with an ink source, the ink cavity is externally wrapped with a constant temperature cavity for containing constant temperature liquid, the constant temperature cavity is provided with a partition area extending from the top to the bottom of the ink cavity, the constant temperature cavity is provided with a circulating liquid inlet and a circulating liquid outlet on opposite sides of the partition area, and the ink inlet communicates with the outside of the ink cartridge body through the partition area; the ink cartridge body is provided with at least one circulating pipeline on each of the opposite sides of the ink inlet, the circulating pipeline is located on the side of the constant temperature cavity away from the ink cavity, each of the circulating pipelines is provided with an inlet communicating with the starting end of the circulating pipeline and an outlet communicating with the ending end of the circulating pipeline, the inlet of the circulating pipeline on one side of the ink inlet is used for ink inlet, the outlet of the circulating pipeline on one side of the ink inlet communicates with the inlet of another adjacent circulating pipeline, the outlet of the circulating pipeline on the other side of the ink inlet communicates with the ink inlet, and the inlet of the circulating pipeline on the other side of the ink inlet communicates with the outlet of another adjacent circulating pipeline.

2. The ink cartridge of claim 1, wherein The circulating pipeline is in a wave shape or a back shape.

3. The ink cartridge of claim 2, wherein The wave-shaped or back-shaped circulating pipeline extends from the bottom of the ink cavity to the top of the ink cavity in a first direction and extends from one side of the ink cartridge body to the opposite side in a second direction, and the first direction and the second direction are perpendicular.

4. The ink cartridge of claim 1, wherein The ink inlet is arranged at the bottom of the side wall of the ink cartridge.

5. The ink cartridge of claim 1, wherein The outlet or the inlet of one of the two circulating pipelines in communication with each other is arranged close to the inlet or the outlet of the other circulating pipeline.

6. The ink cartridge of claim 1, wherein A groove is arranged on the outer side of the ink cartridge body, a cover plate is arranged on the groove of the ink cartridge body, and the cover plate and the groove form the circulating pipeline.

7. The ink cartridge of claim 1, wherein The outer side of the ink cartridge body is provided with a base plate, the base plate is provided with a groove on the first side of the ink cartridge body, and a cover plate is arranged on the groove of the base plate, and the cover plate and the groove form the circulating pipeline.

8. The ink cartridge of claim 6 or 7, wherein An annular groove is arranged around the groove, a sealing member is arranged in the annular groove, and the sealing member abuts against the cover plate.

9. The ink cartridge of claim 1, wherein The ink cartridge body is in a prism structure, the side of the prism structure is N, the constant temperature cavity is wrapped on N-1 sides of the ink cartridge body, and the remaining one side is the partition area of the constant temperature cavity.

10. The ink cartridge of claim 1, wherein The ink cartridge body is in a prism structure, the constant temperature cavity is wrapped on all sides of the ink cartridge body, and the partition area is arranged on one of the sides.