Ink box for printing and 3D printing head

Abstract

The invention relates to a printing ink box which comprises an ink box body (100) and a partition plate assembly, the partition plate assembly is located in the ink box body (100) and comprises a plurality of vertical partition plates (200) and / or transverse partition plates (300), the vertical partition plates (200) are arranged at intervals in the length direction of the ink box body (100), and the transverse partition plates (300) are arranged at intervals in the length direction of the ink box body (100). Each vertical partition plate (200) is arranged in the vertical direction of the ink box body (100) and is not perpendicular to the end face of the ink box body (100), and the transverse partition plate (300) is arranged in the transverse direction of the ink box body (100) and is not perpendicular to the bottom face of the ink box body (100). The invention further relates to a 3D printing head. According to the scheme, the problem that the ink jet effect is affected due to large ink shaking of the ink box in the current 3D printing process can be solved.

Description

Technical Field

[0001] The present invention relates to the technical field of 3D printing, and in particular to a printing ink cartridge and a 3D printing head. Background Art

[0002] 3D printing is an additive manufacturing technology that builds three-dimensional objects by adding materials layer by layer. Commonly used materials include filamentary and powdered plastics, metals, sand and ceramics, among which powdered materials are particularly popular. Existing 3D printing molding technologies such as laser sintering, UV curing and chemical reaction molding can efficiently manufacture complex structures, but the equipment cost is high, the material requirements are strict and the printing efficiency is low. In contrast, micro-jet bonding technology shows good application potential with its low cost and simple process. This technology sprays a binder onto the flattened powder layer through a nozzle, accumulating layer by layer to form a three-dimensional component.

[0003] However, the stability of the print head's inkjet has become a key factor restricting printing quality. During the inkjet process, the shaking of the ink cartridge can easily lead to empty suction and frame loss of the nozzle, and the negative pressure fluctuation affects the normal ink ejection. In addition, the ink temperature changes with the environment, affecting properties such as viscosity and surface tension, which in turn affects the inkjet effect and jetting performance. Factors such as ambient temperature and board heating will affect the ink temperature. Therefore, developing a new print head structure that can effectively prevent ink shaking has become a technical problem that needs to be solved urgently. Summary of the invention

[0004] Based on this, it is necessary to provide a printing ink cartridge and a 3D print head to address the problem that the ink in the ink cartridge has a large ink shake that affects the inkjet effect during the current 3D printing process.

[0005] In order to solve the above problems, the present invention adopts the following technical solutions:

[0006] An embodiment of the present invention discloses a printing ink cartridge, comprising an ink cartridge body and a partition assembly, wherein the partition assembly is located in the ink cartridge body, and the partition assembly comprises a vertical partition and / or a transverse partition, wherein the number of the vertical partitions is multiple, and the multiple vertical partitions are arranged at intervals in the length direction of the ink cartridge body, each of the vertical partitions is arranged along the vertical direction of the ink cartridge body and is not perpendicular to the end face of the ink cartridge body, and the transverse partition is arranged along the transverse direction of the ink cartridge body and is not perpendicular to the bottom face of the ink cartridge body.

[0007] In one embodiment, the partition assembly includes a plurality of vertical partitions, each of which separates the ink cartridge body into two parts, a front part and a rear part. An opening is provided at the bottom of the vertical partition, and two openings between two adjacent vertical partitions are staggered.

[0008] In one embodiment, the vertical partition plate is provided with a first flow hole, and the two first flow holes between two adjacent vertical partition plates are staggered.

[0009] In one embodiment, the vertical partition is snap-connected with the side wall of the ink cartridge body.

[0010] In one embodiment, the partition assembly includes a transverse partition, which divides the ink cartridge body into two parts, an upper part and an lower part, and the transverse partition is provided with a plurality of second flow holes spaced apart along its length direction.

[0011] In one embodiment, there are multiple transverse partitions, and the multiple transverse partitions are arranged at intervals in the height direction of the ink cartridge body, and the second flow holes between two adjacent transverse partitions are staggered.

[0012] In one embodiment, the number of the transverse partitions is two, one of which is above the liquid surface, and the other is inside the liquid surface.

[0013] In one embodiment, the transverse partition includes a plurality of transverse partition units, and the plurality of transverse partition units are arranged in sequence and spaced apart in the length direction of the ink cartridge body and are located on the liquid surface.

[0014] In one of the embodiments, the partition assembly includes a vertical partition and a transverse partition, the transverse partition includes a plurality of transverse partition units, the transverse partition units are arranged in sequence and spaced apart in the length direction of the ink cartridge body, and the transverse partition units are on the liquid surface, and the transverse partition unit is arranged between two adjacent vertical partitions.

[0015] In one embodiment, the partition assembly includes a vertical partition and a transverse partition. The number of the transverse partitions is multiple, and the multiple transverse partitions are arranged in sequence and spaced apart in the length direction of the ink cartridge body, and each transverse partition is clamped and set on each of the vertical partitions.

[0016] In one embodiment, the number of the transverse partitions is two, and the plurality of transverse partitions are arranged in sequence and spaced apart in the length direction of the ink cartridge body, one of the transverse partitions is on the liquid surface, and the other transverse partition is inside the liquid surface.

[0017] In a second aspect, an embodiment of the present invention discloses a 3D print head, comprising the printing ink cartridge described above.

[0018] The technical solution adopted by the present invention can achieve the following beneficial effects:

[0019] In the printing ink cartridge disclosed in the embodiment of the present invention, the flow characteristics and printing accuracy of the ink are greatly optimized through its carefully designed structure, especially the combination of the ink cartridge body and the partition assembly. The partition assembly includes vertical partitions and / or transverse partitions that can be flexibly configured, and through its unique arrangement, the flow speed of the ink is effectively slowed down and the shaking of the ink is limited. The vertical partitions are arranged at intervals in the length direction of the ink cartridge body, and the inclination angle and number can be adjusted according to actual needs to accurately control the flow path and speed of the ink. The transverse partition spans the transverse direction of the ink cartridge body, further stabilizing the ink level and reducing the shaking amplitude of the ink in the height direction. This fine ink flow control not only helps to reduce the liquid level difference, but also effectively slows down the influence of the liquid flow rate generated during the ink addition or constant temperature circulation process. Therefore, during the printing process, the ink cartridge can provide a more stable and accurate inkjet effect, thereby improving the printing quality and accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 A schematic diagram of a portion of the structure of a print head ink cartridge disclosed in an embodiment of the present invention;

[0021] Figure 2 and Figure 3 Two structural schematic diagrams of vertical partitions disclosed in the embodiments of the present invention;

[0022] Figure 4 It is a schematic structural diagram of a transverse partition disclosed in an embodiment of the present invention.

[0023] Description of reference numerals:

[0024] 100 - ink cartridge body, 200 - vertical partition, 210 - opening, 220 - first flow hole, 300 - horizontal partition, 310 - second flow hole. DETAILED DESCRIPTION

[0025] In order to facilitate the understanding of the present invention, the present invention will be described more fully below with reference to the relevant drawings. The preferred embodiments of the present invention are given in the drawings. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present invention more thoroughly understood.

[0026] It should be noted that when an element is referred to as being "disposed on" another element, it may be directly on the other element or there may be a centered element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a centered element at the same time. The terms "vertical", "horizontal", "left", "right", "top", "bottom", "bottom end", "top end" and similar expressions used herein are for illustrative purposes only and are not intended to be the only implementation method.

[0027] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0028] like Figure 1-Figure 4 As shown, an embodiment of the present invention discloses a printing ink cartridge. The disclosed printing ink cartridge is applied to 3D printing and further used in an inkjet device. The printing ink cartridge includes an ink cartridge body 100 and a partition assembly.

[0029] The ink cartridge body 100 is the main structure for containing ink. Its design meets the general requirements of 3D printing equipment for ink cartridges and has sufficient strength and sealing to ensure that the ink does not leak during storage and printing. The partition assembly is located in the ink cartridge body 100, aiming to optimize the flow characteristics of the ink and improve the printing accuracy. The partition assembly includes a vertical partition 200 and / or a transverse partition 300. In this case, the partition assembly may only include a vertical partition: the partition assembly may only consist of a vertical partition 200, but not a transverse partition 300. The partition assembly may only include a transverse partition: the partition assembly may also only consist of a transverse partition 300, but not a vertical partition 200. The partition assembly may include two types of partitions at the same time: the partition assembly may also include a vertical partition 200 and a transverse partition 300 at the same time, which means that in one partition assembly, both vertical and transverse partitions may exist.

[0030] There are multiple vertical partitions 200, which are arranged at intervals in the length direction of the ink cartridge body 100, and each vertical partition 200 is arranged along the vertical direction of the ink cartridge body 100, and each vertical partition 200 is not perpendicular to the end surface of the ink cartridge body 100, that is, the vertical partition 200 can be understood as being vertically inserted into the ink cartridge body 100 to slow down the flow speed of the ink in the ink cartridge body 100 along its length direction. Of course, in the specific setting process, the vertical partition 200 can be set at an angle, or it can be perpendicular to the bottom surface of the ink cartridge body 100, and the inclination angle and number of the vertical partitions 200 can be flexibly adjusted according to actual needs to achieve the best ink flow control effect.

[0031] The transverse partition 300 is arranged along the transverse direction of the ink cartridge body 100, and the transverse partition 300 is not perpendicular to the bottom surface of the ink cartridge body 100. That is, the transverse partition 300 can be understood as being arranged horizontally in the ink cartridge body 100 to reduce the shaking amplitude of the ink in the ink cartridge body 100 along its height direction. Of course, in the specific setting process, the transverse partition 300 can be arranged at an angle, or it can be perpendicular to the end face of the ink cartridge body 100. The main function of the transverse partition 300 is to reduce the shaking amplitude of the ink in the height direction of the ink cartridge and further stabilize the ink level. The number and position of the transverse partition 300 can also be optimized according to printing requirements. Of course, in the design of the ink cartridge, the partition assembly not only plays a role in reducing the shaking of the ink, but also needs to take into account the flow and distribution of the ink. Therefore, an appropriate ink flow space needs to be set on the partition assembly to ensure that the ink cartridge can print normally.

[0032] In the printing ink cartridge disclosed in the embodiment of the present invention, the flow characteristics and printing accuracy of the ink are greatly optimized through its carefully designed structure, especially the combination of the ink cartridge body 100 and the partition assembly. The partition assembly includes a vertical partition 200 and / or a horizontal partition 300 that can be flexibly configured. Through its unique arrangement, the flow speed of the ink is effectively slowed down and the shaking of the ink is limited. The vertical partitions 200 are arranged at intervals in the length direction of the ink cartridge body 100, and the inclination angle and number can be adjusted according to actual needs to accurately control the flow path and speed of the ink. The horizontal partition 300 spans the lateral direction of the ink cartridge body 100, further stabilizing the ink level and reducing the shaking amplitude of the ink in the height direction. This fine ink flow control not only helps to reduce the liquid level difference, but also effectively slows down the influence of the liquid flow rate generated during the ink addition or constant temperature circulation process. Therefore, during the printing process, the ink cartridge can provide a more stable and accurate inkjet effect, thereby improving the printing quality and accuracy.

[0033] In an optional embodiment, the partition assembly may include only a plurality of vertical partitions 200, each of which may separate the ink cartridge body 100 into two parts, front and rear, and an opening 210 may be provided at the bottom of the vertical partition 200, and the two openings 210 between two adjacent vertical partitions 200 may be arranged in a staggered manner. In this case, these vertical partitions 200 play a partitioning role inside the ink cartridge body 100, clearly dividing the ink cartridge body into a plurality of areas to play a blocking role to temporarily slow down the shaking of the ink. At the same time, in order to maintain the circulation of the ink or facilitate the realization of other necessary functions, an opening 210 is designed at the bottom of each vertical partition 200. In particular, in order to optimize the layout or meet specific fluid dynamics requirements, the openings 210 on two adjacent vertical partitions 200 are cleverly designed to be staggered, that is, they are not in the same straight line. Such a design helps to distribute the ink more evenly or prevent the ink from accumulating in a certain area.

[0034] Furthermore, the vertical partition 200 may be provided with a first flow hole 220, and the two first flow holes 220 between two adjacent vertical partitions 200 may be arranged in a staggered manner. At this time, in the design of the vertical partition 200, in addition to the opening 210 at the bottom, the first flow holes 220 may also be provided on the vertical partition 200. The main function of these first flow holes 220 is to further promote the flow of ink and ensure that the ink can circulate and distribute more smoothly inside the ink cartridge body 100. At the same time, the two first flow holes 220 between two adjacent vertical partitions 200 are designed to be staggered. This means that the first flow hole 220 on one partition will not be directly aligned with the corresponding hole on the adjacent partition, but there is a certain offset. Furthermore, the first flow holes 220 arranged in a staggered manner further optimize the design of the ink cartridge by promoting the flow of ink, optimizing the fluid dynamics characteristics, etc., while ensuring the original functional integrity of the vertical partition 200.

[0035] Meanwhile, the specific shape of the first flow hole 220 can be selected in a variety of ways, including but not limited to a round hole, a square hole, an oblong hole, etc. Such diversity in shape can be customized according to factors such as the internal space layout of the ink cartridge, the ink flow requirements, and the printing performance requirements. Different shapes may have different effects on the flow speed and direction of the ink, thereby helping to optimize the overall performance of the ink cartridge.

[0036] When a plurality of first flow holes 220 are provided, the vertical partition 200 can be gradually transformed into a component similar to a mesh structure. This design not only increases the flow channel of the ink, but also improves the overall permeability of the partition. However, in order to ensure that the basic separation function of the vertical partition 200 is not weakened, the thickness of the mesh structure can be designed to be relatively large. The thicker mesh structure can slow down the flow speed of the ink and ensure that the ink can be sufficiently constrained and guided during the flow process, thereby maintaining the reasonable separation of the internal space of the ink cartridge by the vertical partition 200 while ensuring the smooth flow of the ink.

[0037] Furthermore, the vertical partition 200 can be arranged in a snap-fit ​​arrangement with the side wall of the ink cartridge body 100. At this time, the snap-fit ​​arrangement of the vertical partition 200 with the side wall of the ink cartridge body 100 not only enhances the overall performance and stability of the ink cartridge, but also simplifies the assembly process and improves the convenience of maintenance. This design makes the ink cartridge more adaptable to different application scenarios and needs, while ensuring the smooth circulation and uniform distribution of the ink. Furthermore, there is a gap between the side bottom of the vertical partition 200 and the side wall of the ink cartridge body 100, and the presence of the gap enables the ink to be more evenly distributed inside the ink cartridge. When ink flows in from the ink inlet of the ink cartridge, it can flow freely between the vertical partitions through this gap, thereby avoiding excessive accumulation or loss of ink in certain areas.

[0038] In another optional embodiment, the partition assembly may only include a transverse partition 300, which may separate the ink cartridge body 100 into two parts, upper and lower parts. In order to ensure that the liquid can flow between the two areas when necessary, it is necessary to provide a plurality of second flow holes 310 spaced apart along the length direction of the transverse partition 300. In actual operation, we can flexibly select the shape of the second flow hole 310 according to specific needs, such as a round hole, a square hole or an oblong hole. The opening of these holes not only helps to slow down the shaking of the liquid in the up and down directions, but also improves the overall performance of the ink cartridge to a certain extent.

[0039] In addition, by densely opening a plurality of second flow holes 310, we can make the transverse partition 300 present the characteristics of a mesh structure to some extent. This design allows the thickness of the transverse partition to be relatively large, thereby further enhancing the uniform distribution of the liquid inside the ink cartridge without affecting its separation function. In actual operation, we can reasonably adjust the density and thickness of the mesh structure according to the size of the ink cartridge and the characteristics of the liquid to achieve the best liquid management effect.

[0040] Of course, the transverse partition 300 can be fixed at a predetermined position inside the ink cartridge to ensure that it stably separates the liquid; or, depending on the density of the liquid and the design of the ink cartridge, the transverse partition 300 can have a floating function so that it can float on the liquid surface and adjust its position with the fluctuation of the liquid level, thereby more effectively preventing the shaking of the liquid.

[0041] Furthermore, in order to more effectively manage the flow of ink, improve the utilization rate of ink, and possibly reduce the problem of ink precipitation or accumulation, the number of transverse partitions 300 is not limited to one, and the number of transverse partitions 300 can be multiple, and multiple transverse partitions 300 can be arranged at intervals in the height direction of the ink cartridge body 100 to form separate spaces, which are conducive to the uniform distribution and stable flow of ink in the ink cartridge. And the second flow holes 310 between two adjacent transverse partitions 300 can be arranged in a staggered manner. This design of staggered second flow holes 310 ensures that liquids such as ink can circulate effectively, while also cleverly maintaining the key role of the transverse partition 300 in the ink cartridge - temporarily slowing down the shaking of the liquid.

[0042] Furthermore, the number of transverse partitions 300 can be two, one of which can be on the liquid surface, and the other transverse partition 300 can be inside the liquid surface. In this case, the first transverse partition 300 is arranged in the ink cartridge body 100, and the position is slightly higher than the normal liquid level of the ink to ensure that when the ink is filled, the partition can be located above the liquid surface, playing a role in initially preventing the ink from shaking. The second transverse partition 300 is placed inside the ink liquid surface, but it should not be too deep to avoid hindering the normal flow of the ink. Its position should be accurately calculated to ensure that it can effectively disperse and slow down the fluctuations when the ink shakes, while not affecting the ink supply efficiency. At the same time, the transverse partition 300 inside the liquid surface should be firmly fixed to the inner wall of the ink cartridge, and buckles, screws, etc. can be used to prevent shaking damage. The transverse partition 300 on the liquid surface can be fixed or float on the liquid surface, and this application does not impose any restrictions on this.

[0043] Furthermore, the transverse partition 300 may include a plurality of transverse partition units, which are arranged in sequence and spaced apart in the length direction of the ink cartridge body 100, and each transverse partition unit may be on the liquid surface. Specifically, these transverse partition units are arranged in an orderly and spaced manner in the length direction of the ink cartridge body 100, forming a partition system that is both stable and flexible. Each transverse partition unit has the ability to independently prevent liquid shaking, which means that when the liquid in the ink cartridge shakes due to external factors (such as during printing), these transverse partition units can act like solid barriers to effectively slow down and limit the shaking range of the liquid.

[0044] What is more advanced is that these transverse baffle units are designed to float on the liquid surface. This feature not only allows the transverse baffle units to maintain a stable position in the liquid and not be displaced by the rise and fall of the liquid, but also automatically adjust their position as the liquid is consumed, always maintaining contact with the liquid surface, so that they will neither become an obstacle to the flow of the liquid nor lose their ability to prevent sloshing due to changes in the liquid.

[0045] In another optional embodiment, the partition assembly may include a vertical partition 200 and a transverse partition 300. The transverse partition 300 may include a plurality of transverse partition units. The transverse partition units may be arranged in sequence in the length direction of the ink cartridge body 100, and the transverse partition units may be on the liquid surface. A transverse partition unit may be provided between two adjacent vertical partitions 200. In this case, the partition assembly is cleverly designed to be composed of a combination of a vertical partition 200 and a transverse partition 300 to adapt to the complexity of the internal structure of the ink cartridge body 100. The transverse partition 300 is composed of a plurality of flexible transverse partition units, which are arranged at intervals from each other in the ink cartridge body 100. It is worth noting that these transverse partition units are arranged above the liquid surface, playing a key role in isolation and guidance. At the same time, between two adjacent vertical partitions 200, a transverse partition unit is also cleverly embedded, further enhancing the stability of the structure and the accuracy of ink management.

[0046] Furthermore, the partition assembly may include a vertical partition 200 and a transverse partition 300, and the number of the transverse partitions 300 may be multiple, and the multiple transverse partitions 300 may be arranged in sequence in the length direction of the ink cartridge body 100, and each transverse partition 300 may be snap-fitted to each vertical partition 200. This design not only ensures the structural stability of the partition assembly, but also greatly simplifies the assembly process. In this way, the vertical partition 200 is tightly combined with the multiple transverse partitions 300 to form a solid and practical overall structure to better solve the position of liquid shaking to ensure the inkjet effect.

[0047] During operation, the installer can first determine the position of the vertical partition 200, and then sequentially and accurately clip each transverse partition 300 onto the vertical partition 200 at a preset interval.

[0048] Furthermore, the number of transverse partitions 300 may be two, and the plurality of transverse partitions 300 may be arranged in sequence and spaced apart in the length direction of the ink cartridge body 100, wherein one transverse partition 300 may be on the liquid surface, and the other transverse partition 300 may be inside the liquid surface. At this time, the use of such a design with two transverse partitions 300 arranged at different liquid surface positions not only helps to more effectively separate and manage the ink in the ink cartridge, and prevent the disorderly flow of ink inside the ink cartridge, thereby improving the stability and controllability of the ink. Secondly, the transverse partition 300 located on the liquid surface can act as a barrier, which can better prevent the ink from shaking. At the same time, the transverse partition 300 inside the liquid surface ensures that the ink can be effectively dispersed and the fluctuation can be slowed down when it shakes, while not affecting the ink supply efficiency.

[0049] Based on the printing ink cartridge disclosed in the embodiment of the present invention, the embodiment of the present invention discloses a 3D print head, including the printing ink cartridge described above.

[0050] The above-mentioned embodiments only express several implementation methods of the present invention, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the invention patent. It should be pointed out that, for ordinary technicians in this field, several variations and improvements can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention shall be subject to the attached claims.

Claims

1. A printing ink cartridge, characterized in that: The invention comprises an ink cartridge body (100) and a partition assembly, wherein the partition assembly is located inside the ink cartridge body (100), and the partition assembly comprises a vertical partition (200) and / or a transverse partition (300). There are a plurality of vertical partitions (200), and the plurality of vertical partitions (200) are arranged at intervals in the length direction of the ink cartridge body (100). Each of the vertical partitions (200) is arranged along the vertical direction of the ink cartridge body (100) and is not perpendicular to the end face of the ink cartridge body (100). The transverse partition (300) is arranged along the transverse direction of the ink cartridge body (100) and is not perpendicular to the bottom face of the ink cartridge body (100).

2. The ink cartridge for printing according to claim 1, characterized in that: The partition assembly comprises a plurality of vertical partitions (200), each of the vertical partitions (200) partitioning the ink cartridge body (100) into two parts, a front part and a rear part; an opening (210) is provided at the bottom of the vertical partition (200), and the two openings (210) between two adjacent vertical partitions (200) are staggered.

3. The ink cartridge for printing according to claim 2, characterized in that: The vertical partition (200) is provided with a first flow hole (220), and the two first flow holes (220) between two adjacent vertical partitions (200) are staggered.

4. The ink cartridge for printing according to claim 2, characterized in that: The vertical partition (200) is clamped and arranged with the side wall of the ink cartridge body (100).

5. The ink cartridge for printing according to claim 1, characterized in that: The partition assembly comprises a transverse partition (300), wherein the transverse partition (300) divides the ink cartridge body (100) into two upper and lower parts, and the transverse partition (300) is provided with a plurality of second flow holes (310) spaced apart along its length direction.

6. The ink cartridge for printing according to claim 5, characterized in that: There are multiple transverse partitions (300), and the multiple transverse partitions (300) are arranged at intervals in the height direction of the ink cartridge body (100), and the second flow holes (310) between two adjacent transverse partitions (300) are arranged in a staggered manner.

7. The ink cartridge for printing according to claim 6, characterized in that: The number of the transverse partitions (300) is two, one of which is above the liquid surface, and the other of which is inside the liquid surface.

8. The ink cartridge for printing according to claim 5, characterized in that: The transverse partition (300) comprises a plurality of transverse partition units, and the plurality of transverse partition units are sequentially arranged at intervals in the length direction of the ink cartridge body (100) and are located on the liquid surface.

9. The ink cartridge for printing according to claim 1, characterized in that: The partition assembly includes a vertical partition (200) and a transverse partition (300), and the transverse partition (300) includes a plurality of transverse partition units. The transverse partition units are arranged in sequence and spaced apart in the length direction of the ink cartridge body (100), and the transverse partition units are located on the liquid surface, and the transverse partition unit is arranged between two adjacent vertical partitions (200).

10. The ink cartridge for printing according to claim 1, characterized in that: The partition assembly comprises a vertical partition (200) and a transverse partition (300), wherein the number of the transverse partitions (300) is multiple, and the multiple transverse partitions (300) are arranged in sequence and spaced apart in the length direction of the ink cartridge body (100), and each transverse partition (300) is snap-connected and arranged on each of the vertical partitions (200).

11. The printing ink cartridge according to claim 10, characterized in that: The number of the transverse partitions (300) is two, and the plurality of transverse partitions (300) are arranged in sequence and spaced apart in the length direction of the ink cartridge body (100), wherein one of the transverse partitions (300) is above the liquid surface, and the other transverse partition (300) is within the liquid surface.

12. A 3D printing head, characterized in that: A printing ink cartridge comprising the ink cartridge according to any one of claims 1 to 11.

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