Ink box

Abstract

The invention is suitable for the technical field of digital printing, and provides an ink box which comprises an ink box body, an ink cavity is formed in the middle of the ink box body, the ink cavity is provided with an ink inlet and an ink outlet, the ink cavity is wrapped with a constant-temperature 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.

Description

Technical Field

[0001] The invention belongs to the technical field of digital printing, and in particular relates to an ink cartridge. Background Art

[0002] The ink cartridges of digital printing equipment are roughly divided into two types according to the direction of ink flow. One is a circulating ink cartridge, that is, the equipment is equipped with a main ink cartridge and a circulating ink cartridge. The main ink cartridge is connected to the input end of the nozzle, and the circulating ink cartridge is connected to the output end of the nozzle. The ink circulates from the main ink cartridge through the nozzle and returns to the circulating ink cartridge; the other is a non-circulating ink cartridge, that is, the equipment is only equipped with a main ink cartridge. After the ink enters the nozzle from the main ink cartridge, it is directly ejected from the nozzle for printing, and the ink does not circulate back from the nozzle to the ink cartridge. When digital printing equipment is working normally, it has high requirements for the working temperature of the ink, that is, the temperature of the ink needs to be kept constant at a certain temperature. If the ink temperature is too high, it will easily cause the ink to dry up, and if the temperature is too low, the fluidity of the ink will deteriorate. If the ink temperature is too high or too low, it will affect the printing quality. In the prior art, for circulating ink cartridges, since the ink will circulate back into the ink cartridge from the nozzle, a heating and / or cooling device can be set on the circulating ink path on both sides of the nozzle input and output ends to adjust the temperature of the ink to be constant. However, for non-circulating ink cartridges, even if a heating or cooling device is set on the ink path, since no circulation is generated, during a fast printing process, the ink enters the nozzle before it has time to be heated or cooled, thereby producing a minimal temperature adjustment effect, which also affects the printing effect. Summary of the invention

[0003] The ink cartridge provided by the present invention aims to solve the problem in the prior art that the non-circulating ink cartridge cannot well regulate the constant temperature of the ink, thus affecting the printing effect.

[0004] The present invention is achieved in that an ink cartridge comprises:

[0005] The ink cartridge body has an ink cavity in the middle, the ink cavity has an ink inlet and an ink outlet, the outside of the ink cavity is wrapped with a constant temperature cavity for accommodating constant temperature liquid, the constant temperature cavity has a partition area, the partition area extends from the top to the bottom of the ink cavity, the constant temperature cavity is located on opposite sides of the partition area and is respectively provided with a circulating liquid inlet and a circulating liquid outlet, the ink inlet is connected to the outside of the ink cartridge body through the partition area;

[0006] The ink cartridge body is provided with circulation pipelines on at least two opposite side surfaces located at the ink inlet, and the circulation pipelines are located on the side of the constant temperature chamber away from the ink chamber. Each circulation pipeline is provided with an inlet connected to the starting end of the circulation pipeline and an outlet connected to the ending end of the circulation pipeline. The inlet of the circulation pipeline located on one side of the ink inlet is used for ink intake, and the outlet is connected to the inlet of another adjacent circulation pipeline. The outlet of the circulation pipeline located on the other side of the ink inlet is connected to the ink inlet, and the inlet is connected to the outlet of another adjacent circulation pipeline.

[0007] Furthermore, the circulation pipeline is wavy or zigzag shaped.

[0008] Furthermore, the wavy or U-shaped circulation pipeline extends from the bottom of the ink chamber to the top of the ink chamber in a first direction, and extends from one side of the ink cartridge body to the other opposite side in a second direction, and the first direction and the second direction are vertically arranged.

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

[0010] Furthermore, the outlet or the inlet of one of the two circulating pipelines that are interconnected is arranged close to the inlet or the outlet of the other circulating pipeline.

[0011] Furthermore, a groove is formed on the outer side surface of the ink cartridge body, and a cover plate is formed on the ink cartridge body to cover the groove, and the cover plate and the groove form the circulation pipeline.

[0012] Furthermore, a substrate is provided on the outer side of the ink cartridge body, and a groove is formed on the first side of the substrate facing the outside of the ink cartridge body. A cover plate is covered on the groove of the substrate, and the cover plate and the groove form the circulation pipeline.

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

[0014] Furthermore, the ink cartridge body is a prism structure, and the prism structure has N sides, the constant temperature chamber is wrapped on N-1 sides of the ink cartridge body, and the remaining side is a partition area of ​​the constant temperature chamber.

[0015] Furthermore, the ink cartridge body is a prismatic structure, the constant temperature chamber wraps around all side surfaces of the ink cartridge body, and the partition area is arranged on one of the side surfaces.

[0016] The beneficial effect achieved by the present invention is that the constant temperature chamber 12 is wrapped outside the ink chamber 11. When the ink cartridge is used, the circulating liquid inlet 121 of the constant temperature chamber 12 is connected to the constant temperature water circulation system 10 so that the constant temperature liquid enters the constant temperature chamber 12 and fills the entire constant temperature chamber 12, and then returns to the constant temperature water circulation system 10 from the circulating liquid outlet 122 of the constant temperature chamber 12. In this way, the constant temperature liquid circulates in the constant temperature chamber 12, and the constant temperature chamber 12 can be kept at a constant temperature. The ink in the ink chamber 11 wrapped in the constant temperature chamber 12 can be kept at a certain temperature by the constant temperature liquid in the constant temperature chamber 12, and the ink cartridge body 1 is provided with at least two circulating liquid outlets outside the constant temperature chamber 12. The ring pipeline 2, before the ink enters the ink chamber 11, is pre-regulated by the constant temperature chamber 12 through at least two circulation pipelines 2 located on both sides of the ink inlet 111, so that the ink entering the ink chamber 11 basically reaches a constant temperature of the ink, and then the ink in the ink chamber 11 is strengthened by the constant temperature chamber 12 wrapped around the outside of the ink chamber 11, so that the temperature of the ink entering the nozzle 20 from the ink outlet 112 of the ink chamber 11 reaches the target condition, so as to effectively adjust the temperature of the ink. At the same time, a circulation pipeline 2 is set on the side of the constant temperature chamber 12 away from the ink chamber 11, which can effectively utilize the heat brought by the circulation of the constant temperature liquid to pre-regulate the ink, effectively and fully utilize the energy, and avoid energy waste. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural schematic diagram of an ink cartridge provided by the present invention connected with a constant temperature water circulation system and a nozzle;

[0018] Figure 2 This is a schematic diagram of the external structure of an ink cartridge provided by the present invention;

[0019] Figure 3 This is a schematic diagram of an ink cartridge decomposition provided by the present invention;

[0020] Figure 4 It is a structural diagram of an ink cartridge body of an ink cartridge provided by the present invention;

[0021] Figure 5 It is a structural diagram of an ink cartridge body of an ink cartridge provided by the present invention from another perspective;

[0022] Figure 6 It is a schematic diagram of an exploded view of another embodiment of an ink cartridge provided by the present invention.

[0023] Description of Figure Numbers:

[0024] 1. Ink cartridge body; 1a. Base; 1b. Top plate; 11. Ink chamber; 111. Ink inlet; 112. Ink outlet; 113. Pressure relief port; 12. Constant temperature chamber; 12a. Partition area; 121. Circulating liquid inlet; 122. Circulating liquid outlet; 2. Circulating pipeline; 21. Inlet; 22. Outlet; 3. Cover plate; 4. Base plate; 5. Annular groove; 6. Pressure sensor; 7. Pipe joint; 8. Pipe fittings; 10. Constant temperature water circulation system; 20. Nozzle. DETAILED DESCRIPTION

[0025] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0026] See also Figure 1-Figure 5The embodiment of the present invention provides an ink cartridge, including an ink cartridge body 1, an ink chamber 11 is provided in the middle of the ink cartridge body 1, the ink chamber 11 is used to hold ink, the ink chamber 11 is provided with an ink inlet 111 and an ink outlet 112, the ink inlet 111 is connected to an ink source (e.g., an ink barrel) so that ink can be continuously transported to the ink chamber 11, the ink outlet 112 is connected to a nozzle 20 so that ink is input from the ink chamber 11 to the nozzle 20, and the nozzle 20 sprays ink to a printing medium to achieve printing, the outside of the ink chamber 11 is wrapped with a constant temperature chamber 12 for holding a constant temperature liquid, the constant temperature chamber 12 is provided with a partition area 12a, the partition area 12a extends from the top to the bottom of the ink chamber 11, and the constant temperature chamber 12 is provided with two opposite sides of the partition area 12a, respectively The circulating liquid inlet 121 and the circulating liquid outlet 122 are used to connect the constant temperature water circulation system 10 so that the constant temperature liquid can circulate in the constant temperature chamber 12. The partition area 12a can prevent the constant temperature chamber 12 from forming a closed loop structure, thereby ensuring that the constant temperature liquid flow path between the circulating liquid inlet 121 and the circulating liquid outlet 122 is unique and wraps the ink chamber 11 to the greatest extent. The ink inlet 111 is connected to the outside of the ink cartridge body 1 through the partition area 12a to avoid the ink inlet 111 passing through the constant temperature chamber 12, resulting in the need to set an ink outlet channel in the constant temperature chamber 12 to hinder the circulation of the constant temperature liquid in the constant temperature chamber 12. At the same time, it also simplifies the structure and reduces the difficulty of installation. The cartridge body 1 is provided with circulation pipelines 2 on at least two opposite sides of the ink inlet 111. The circulation pipelines 2 are located on the side of the constant temperature chamber 12 away from the ink chamber 11. Each circulation pipeline 2 is provided with an inlet 21 connected to the starting end of the circulation pipeline 2 and an outlet 22 connected to the terminating end of the circulation pipeline 2. The inlet 21 of the circulation pipeline 2 located on one side of the ink inlet 111 is used to feed ink, and the outlet 22 is connected to the inlet 21 of another adjacent circulation pipeline 2. The outlet 22 of the circulation pipeline 2 located on the other side of the ink inlet 111 is connected to the ink inlet 111, and the inlet 21 is connected to the outlet 22 of another adjacent circulation pipeline 2. In this way, a circulation pipeline 2 located on one side of the ink inlet 111 can be connected to the ink inlet when the ink enters. Before the ink chamber 11, the ink enters the circulation pipeline 2 through the inlet 21 of the circulation pipeline 2. The ink passing through the circulation pipeline 2 can be initially heated up or cooled down by the constant temperature liquid in the constant temperature chamber 12. After coming out from the outlet 22 of the circulation pipeline 2, it finally enters the inlet 21 of the circulation pipeline 2 located on the other side of the ink inlet 111 and enters the circulation pipeline 2. During the operation in the circulation pipeline 2, the temperature of the ink basically reaches the target temperature. Finally, it enters the ink inlet 111 from the outlet 22 of the circulation pipeline 2 located on the other side of the ink inlet 111 and then enters the ink chamber 11. The constant temperature liquid in the constant temperature chamber 12 surrounding the ink chamber 11 completely adjusts the ink in the ink chamber 11 to the temperature required for ink printing.

[0027] By wrapping the constant temperature chamber 12 outside the ink chamber 11, when the ink cartridge is used, the circulating liquid inlet 121 of the constant temperature chamber 12 is connected to the constant temperature water circulation system 10 so that the constant temperature liquid enters the constant temperature chamber 12 and fills the entire constant temperature chamber 12, and then returns to the constant temperature water circulation system 10 from the circulating liquid outlet 122 of the constant temperature chamber 12, so that the constant temperature liquid circulates in the constant temperature chamber 12, the constant temperature chamber 12 can be maintained at a constant temperature, and the ink in the ink chamber 11 wrapped in the constant temperature chamber 12 can be maintained at a certain temperature by the constant temperature liquid in the constant temperature chamber 12, and the ink cartridge body 1 is provided with at least two circulation pipelines 2 outside the constant temperature chamber 12, Before the ink enters the ink chamber 11, it is pre-regulated by the constant temperature chamber 12 through at least two circulation pipes 2 located on both sides of the ink inlet 111, so that the ink entering the ink chamber 11 basically reaches a constant temperature of the ink, and then the ink in the ink chamber 11 is strengthened by the constant temperature chamber 12 wrapped around the outside of the ink chamber 11, so that the temperature of the ink entering the nozzle 20 from the ink outlet 112 of the ink chamber 11 reaches the target condition, so as to effectively adjust the temperature of the ink. At the same time, a circulation pipe 2 is set on the side of the constant temperature chamber 12 away from the ink chamber 11, which can effectively utilize the heat brought by the circulation of the constant temperature liquid to pre-regulate the ink, effectively and fully utilize energy, and avoid energy waste.

[0028] The ink cartridge provided by the present invention has a wide range of applicable scenarios and is not only suitable for regulating the temperature of ink that needs to be circulated, but can also regulate the temperature of non-circulating ink, and the ink temperature regulation effect is significant.

[0029] The "adjacent circulation pipelines 2" mentioned above refer to that when the circulation pipelines 2 are only arranged on the two sides of the ink cartridge body 1 opposite to 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 the circulation pipeline 2 arranged on the other side of the ink inlet 111; when the circulation pipeline 2 is also arranged on other sides of the ink cartridge body 1 except the two sides opposite to 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 the circulation pipeline 2 arranged on the other side of the ink inlet 111; The inlet 21 of another circulation pipeline 2 outside the circulation pipeline 2 on the opposite sides of the ink inlet 111, and the outlet 22 of the other circulation pipeline 2 are connected to the inlet 21 of the circulation pipeline 2 on the other side of the ink inlet 111, and so on, that is, when there are 1, 2, 3...circulation pipelines 2 outside the opposite sides of the ink inlet 111, the circulation pipeline 2 on one side of the ink inlet 111 is connected with the aforementioned 1, 2, 3...circulation pipelines 2 in sequence, and finally connected to the circulation pipeline 2 on the other side of the ink inlet 111. This design scheme sets at least two circulation pipelines 2, and one circulation pipeline 2 can be used to perform preliminary temperature adjustment on the ink, and the other circulation pipeline 2 can be used to perform final pre-adjustment on the ink before the ink enters the ink chamber 11 to approach the required temperature of the ink, thereby ensuring that the ink entering the ink chamber 11 through the circulation pipeline 2 is less different from the required temperature of the ink, and then the ink chamber 11 is finally adjusted by the constant temperature chamber 12 to reach the required target temperature of the ink. The number of circulation pipelines 2 can be set according to the actual specifications of the ink cartridge body 1 and the effect of the current ambient temperature (such as overcooling or overheating) on ​​the actual temperature of the ink, resulting in a temperature difference from the target temperature.

[0030] See also Figure 3 Furthermore, the circulation pipeline 2 is wavy or U-shaped (not shown in the figure). The wavy or U-shaped circulation pipeline 2 can extend the ink delivery path within a limited space, so that the temperature of the ink can be fully pre-adjusted.

[0031] Furthermore, the wavy or U-shaped circulation pipeline 2 extends from the bottom of the ink chamber 11 to the top of the ink chamber 11 in the first direction, and extends from one side of the ink cartridge body 1 to the other opposite side in the second direction. The first direction and the second direction are arranged vertically, so that the circulation pipeline 2 can be maximally distributed over the entire side 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 wavy shape can be a longitudinal extension as shown in the accompanying drawings, or it can be a transverse extension, as long as the purpose of extending the circulation pipeline 2 can be achieved. The starting end and the ending end of the U-shaped circulation pipeline 2 can be set outside the U-shape, so that the inlet 21 and the outlet 22 of the circulation pipeline 2 can be set near the edge of the side of the ink cartridge body 1, which is convenient for the connection between the circulation pipelines 2.

[0033] See also Figure 3 , Figure 5 Furthermore, 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 chamber 11, the liquid level of the ink chamber 11 rises slowly from the bottom to the top, which can keep the ink in the ink chamber 11 in a calm state, and avoid 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 to the ink inlet 111 is arranged on a side close to the ink inlet 111, so that the outlet 22 of the circulation pipeline 2 is convenient to be connected with the ink inlet 111.

[0034] See also Figure 2 , Figure 3 Specifically, the ink inlet 111, the outlet 22 connected to the ink inlet 111, the circulating liquid inlet 121, and the circulating liquid outlet 122 can be installed by installing a pipe joint 7 so that the pipe fitting 8 is connected to the pipe joint 7 (see Figure 6 ) to connect other components accordingly.

[0035] Furthermore, the outlet 22 or the inlet 21 of one of the two interconnected circulation pipelines 2 is arranged close to the inlet 21 or the outlet 22 of the other circulation pipeline 2, so that the outlet 22 or the inlet 21 of one of the two adjacent circulation pipelines 2 can be easily connected to the inlet 21 or the outlet 22 of the other circulation pipeline 2.

[0036] See also Figure 2-Figure 4 Specifically, a groove is provided on the outer side of the ink cartridge body 1, and a cover plate 3 is covered on the groove of the ink cartridge body 1, and the cover plate 3 and the groove form a circulation pipeline 2. This can facilitate the production and processing of the circulation pipeline 2.

[0037] See also Figure 6Specifically, the groove can be directly formed on the side wall of the ink cartridge body 1, so that the circulation pipeline 2 can be directly processed on the ink cartridge body 1 during the production and processing of the ink cartridge body 1, so that the circulation pipeline 2 and the ink cartridge body 1 can better form a whole, and the number of parts can be saved. When this solution is adopted, two adjacent circulating pipelines 2 that are connected can directly open a channel in the side wall of the ink cartridge body 1 to make the inlet 21 or outlet 22 of one circulating pipeline 2 communicate with the outlet 22 or inlet 21 of another circulating pipeline 2, thereby avoiding the cumbersome process of installing the circulating pipeline 2 on the inlet 21 / outlet 22 through the external pipe joint 7 and then connecting with the pipe fitting 8. The ink cartridge body 1 can also reduce the number of external connectors, making the external structure more concise.

[0038] See also Figure 3 In addition, the groove can also be opened on the substrate 4 and then the substrate 4 can be 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 sides opposite to the ink inlet 111, circulation pipelines 2 can also be added on other sides to further extend the total stroke of the circulation pipeline 2, so as to better adapt to the ink temperature regulation in extreme weather (overcooling or overheating). When this solution is adopted, an inlet 21 / outlet 22 can be opened on the substrate 4 or the cover plate 3 to connect the starting end and the ending end of the groove respectively, and then a pipe joint 7 is installed on the inlet 21 / outlet 22 to connect the two adjacent circulation pipelines 2 through a pipe fitting 8. This connection method using a pipe joint 7 and a pipe fitting 8 can set the positions of the inlet 21 and the outlet 22 as needed, and the installation is more flexible.

[0039] It should be noted that the groove can be configured as a corresponding wave-shaped or U-shaped structure.

[0040] See also Figure 3 Further, an annular groove is provided outside the groove, a sealing member (not shown) is provided inside the annular groove, and the sealing member abuts against the cover plate 3. In this way, the sealing between the cover plate 3 and the groove can be achieved to avoid leakage.

[0041] Furthermore, the ink cartridge body 1 is a prism structure, and the prism structure makes the side surfaces of the ink cartridge body 1 all flat surfaces, which is convenient for various structural processing of the ring pipeline.

[0042] Embodiment 1

[0043] See also Figure 1 , Figure 5Specifically, the number of sides of the prism structure is N, the constant temperature chamber 12 is wrapped on the N-1 sides of the ink cartridge body 1, and the remaining side is the partition area 12a of the constant temperature chamber 12. In this way, the space occupied by the constant temperature chamber 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 within the limited volume of the ink cartridge body 1.

[0044] Embodiment 2

[0045] See also Figure 6 As another embodiment, specifically, in addition to the setting structure of the above-mentioned embodiment 1, the constant temperature chamber 12 can also wrap the constant temperature chamber 12 on all sides of the ink cartridge body 1, and the partition area 12a is set on one of the sides. In this way, the constant temperature chamber 12 wraps the ink chamber 11 to the maximum extent. Compared with the embodiment 1, the embodiment 2 can further improve the temperature regulation effect of the constant temperature chamber 12 on the ink in the ink chamber 11. It should be noted that both the embodiment 1 and the embodiment 2 can meet the target temperature regulation required by the ink, so different schemes can be selected to set the constant temperature chamber 12 according to actual needs.

[0046] Specifically, the prism structure can be a triangular prism, a quadrangular prism, a pentagonal prism, etc., which can be selected according to actual needs. In this embodiment, a quadrangular prism structure is selected. On the one hand, it is easy to process, and on the other hand, the capacity of the ink chamber 11 inside the ink cartridge body 1 of the same volume can reach the maximum. Two circulation pipelines 2 can be set, which are respectively set on the side surfaces of the ink cartridge body 1 on the opposite sides of the ink inlet 111. Three circulation pipelines 2 can also be set. The three circulation pipelines 2 can be set 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 connected in sequence. The setting of the constant temperature chamber 12 can adopt In the above-mentioned embodiment 1 or embodiment 2, the setting of the circulation pipeline 2 can adopt one of the above-mentioned two settings, which can be selected according to actual needs; when the number of prism sides increases, that is, when the sides are 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 fully or partially arranged on the remaining sides other than the sides where the ink inlet 111 is located, so as to shorten the temperature difference when the ink enters the circulation pipeline 2 on one side of the ink inlet 111 from the circulation pipeline 2 on the other side of the ink inlet 111, thereby better adjusting the ink temperature.

[0047] Furthermore, a pressure relief port 113 and a pressure sensor 6 are provided at the top of the ink chamber 11. The pressure sensor 6 is used to detect the pressure inside the ink chamber 11, and the pressure relief port 113 is used to release the pressure when the pressure inside the ink chamber 11 is too high. This ensures that the ink cartridge is 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 communicated with the external structure through a pipe fitting 8.

[0048] Specifically, the ink cartridge body 1 includes a base 1a and a top plate 1b, the ink chamber 11, the constant temperature chamber 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 discharge port 113 is arranged on the top plate 1b, the pressure sensor 6 passes through the top plate ab and extends out of the ink cartridge body 1, an opening is arranged above the base 1a, and the top plate 1b covers the opening to seal the ink chamber 11 and the constant temperature chamber 12, annular grooves 5 are arranged around the tops of the ink chamber 11 and the constant temperature chamber 12, and a sealing member (not shown in the figure) is arranged in the annular groove 5 to achieve sealing between the top plate 1b and the base 1a between the constant temperature chamber 12 and the ink chamber 11.

[0049] In this embodiment, the ink cartridge body 1 can be made of a transparent material. The transparent material can facilitate observation of the ink capacity in the ink chamber through the partition area, so that the ink input rate can be adjusted in real time. The transparent material can be but is not limited to an acrylic plate. The acrylic plate dissipates heat slowly, thereby reducing the rate of heat loss of the constant temperature liquid during circulation, thereby achieving a better constant temperature effect.

[0050] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An ink cartridge, characterized in that: include: The ink cartridge body has an ink cavity in the middle, the ink cavity has an ink inlet and an ink outlet, the outside of the ink cavity is wrapped with a constant temperature cavity for accommodating constant temperature liquid, the constant temperature cavity has a partition area, the partition area extends from the top to the bottom of the ink cavity, the constant temperature cavity is located on opposite sides of the partition area and is respectively provided with a circulating liquid inlet and a circulating liquid outlet, the ink inlet is connected to the outside of the ink cartridge body through the partition area; The ink cartridge body is provided with circulation pipelines on at least two opposite side surfaces located at the ink inlet, and the circulation pipelines are located on the side of the constant temperature chamber away from the ink chamber. Each circulation pipeline is provided with an inlet connected to the starting end of the circulation pipeline and an outlet connected to the ending end of the circulation pipeline. The inlet of the circulation pipeline located on one side of the ink inlet is used for ink intake, and the outlet is connected to the inlet of another adjacent circulation pipeline. The outlet of the circulation pipeline located on the other side of the ink inlet is connected to the ink inlet, and the inlet is connected to the outlet of another adjacent circulation pipeline.

2. The ink cartridge according to claim 1, wherein: The circulation pipeline is in a wave shape or a spiral shape.

3. The ink cartridge according to claim 2, wherein: The wavy or U-shaped circulation pipeline extends from the bottom of the ink chamber to the top of the ink chamber in a first direction, and extends from one side of the ink cartridge body to the other opposite side in a second direction, and the first direction and the second direction are vertically arranged.

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

5. The ink cartridge according to claim 1, wherein: The outlet or the inlet of one of the two circulating pipelines that are connected to each other is arranged close to the inlet or the outlet of the other circulating pipeline.

6. The ink cartridge according to claim 1, wherein: A groove is formed on the outer side of the ink cartridge body, and a cover plate is formed on the ink cartridge body to cover the groove. The cover plate and the groove form the circulation pipeline.

7. The ink cartridge according to claim 1, wherein: A substrate is provided on the outer side of the ink cartridge body. The substrate has a groove starting from a first side facing the outside of the ink cartridge body. A cover plate is covered on the groove of the substrate. The cover plate and the groove form the circulation pipeline.

8. The ink cartridge according to claim 6 or 7, characterized in that: 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 according to any one of claims 1, characterized in that: The ink cartridge body is a prism structure. Assuming that the prism structure has N sides, the constant temperature chamber is wrapped on N-1 sides of the ink cartridge body, and the remaining side is a partition area of ​​the constant temperature chamber.

10. The ink cartridge according to any one of claims 1, characterized in that: The ink cartridge body is a prismatic structure, the constant temperature chamber wraps around all sides of the ink cartridge body, and the partition area is arranged on one of the sides.

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