An ink-settling-preventing ink tank for a digital printing machine

Abstract

The utility model relates to a digital printing machine's ink reservoir that prevents ink from settling, relates to digital printing equipment technical field, solved the technical problem that the effect of preventing settlement is poor, including ink reservoir body, the inside of ink reservoir body is divided into main warehouse area, vice warehouse area and equipment warehouse through the partition plate, the top of ink reservoir body has the apron, the top of apron rotatably connects with the pivot, is fixedly connected with the stirring fan on the pivot, the bottom of vice warehouse area is provided with a plurality of micropore air jet, is provided with the auxiliary circulating pump between main warehouse area and vice warehouse area, the side of main warehouse area is connected with the pump machine, and the output end of pump machine is connected with printing jet, and the backflow end of printing jet is connected with the filter, and the output end of filter is connected with vice warehouse area, the utility model discloses three times of anti -settling mechanism of mechanical stirring, ink road circulation and bubble disturbance, synergistic effect has improved the effect of preventing settlement, and mechanical stirring adopts the stirring fan of special design, can realize good stirring effect under low speed, avoids generating too many bubbles.

Description

Technical Field

[0001] This utility model relates to the field of digital printing equipment technology, specifically an ink tank for preventing ink settling in digital printing machines. Background Technology

[0002] Digital printing technology is a printing process that uses computer-controlled printheads to directly spray special inks onto textiles or other materials. During the operation of a digital printing machine, the stability of the ink storage and supply system directly affects the printing quality and equipment reliability.

[0003] Currently, most digital printing machines use pigment-based inks. The pigment particles in these inks tend to settle when left stagnant, especially in the ink tank. If the ink remains stagnant for a long time, the pigment particles will gradually settle at the bottom of the ink tank, causing several problems. First, the settled pigment particles may clump together, clogging the ink pipes and printhead, causing printing interruptions and increased maintenance costs. Second, uneven distribution of pigment in the ink can lead to inconsistent printing colors and color difference issues. Third, the pigment settled at the bottom of the ink tank is difficult to redistribute evenly, resulting in reduced ink utilization.

[0004] Existing technologies have several solutions that attempt to address the ink sedimentation problem. For example, some digital printing equipment uses a stirring device to prevent ink sedimentation. Chinese patent CN216783084U discloses a digital printing equipment with an anti-clogging structure, which uses a rotating shaft and a stirring fan inside the ink storage bottle. The motor drives the stirring fan to rotate and stir the ink. Chinese patent CN113334935A discloses an ink supply circulation system that prevents ink sedimentation. It uses a dual circulation system to ensure that the ink in the ink tank and ink sac circulates. At the same time, the motor drives the stirring paddle to rotate and evenly stir the ink in the main storage area. Some other solutions use a surging stirring or bubble stirring mechanism.

[0005] Despite the positive explorations made by the above solutions, there are still obvious limitations in practical applications. Specifically, firstly, the coverage of a single stirring or circulation method is limited, and the anti-settling effect is unstable. Secondly, mechanical stirring often uses a high-speed rotating small-area stirring fan, which easily generates a large number of air bubbles. When these air bubbles enter the printhead, they can cause problems such as ink interruption and ink splatter, affecting printing accuracy. Thirdly, it is difficult to completely solve the problem of pigment accumulation in dead areas such as the corners and bottom of the ink tank. Fourthly, most solutions require complex drive and control systems, which not only have high energy consumption but also increase the difficulty and cost of equipment maintenance.

[0006] Based on this, the present invention provides an ink tank for digital printing machines that prevents ink settling to solve the above problems. Utility Model Content

[0007] In view of the above situation and to overcome the defects of the prior art, this utility model provides an ink tank for digital printing machines that prevents ink sedimentation. This utility model has a novel structure and ingenious design, and effectively solves the technical problem of poor anti-settling effect.

[0008] An ink tank for a digital printing machine with anti-ink sedimentation features includes a tank body. The interior of the tank body is divided into a main tank area, a secondary tank area, and an equipment compartment by a partition plate. A cover plate is provided on the top of the tank body, and a rotating shaft is rotatably connected to the top of the cover plate. A stirring fan is fixedly connected to the rotating shaft. Multiple micro-perforated airflow nozzles are provided at the bottom of the secondary tank area. An auxiliary circulation pump is provided between the main tank area and the secondary tank area. A pump is connected to one side of the main tank area. The output end of the pump is connected to the print head. A filter is connected to the return end of the print head. The output end of the filter is connected to the secondary tank area.

[0009] Preferably, a geared motor is fixedly connected to the top of the cover plate, and the output end of the geared motor is fixedly connected to the top end of the rotating shaft.

[0010] Preferably, a device base shell is fixedly connected to the bottom of the ink tank body, an air pump is installed inside the device base shell, a coil is fixedly connected to the output end of the air pump, a plurality of micro-hole airflow nozzles are fixedly connected to the coil, and a filter cover is fixedly connected to the air inlet end of the air pump through an air inlet pipe.

[0011] Preferably, the output end of the auxiliary circulation pump is connected to the main compartment area through an output fixed pipe, and the ink extraction end of the auxiliary circulation pump is connected to the secondary compartment area through a liquid extraction fixed pipe.

[0012] Preferably, the output end of the pump is connected to the ink inlet end of the print head via an output pipe, and the ink extraction end of the pump is connected to the interior of the main chamber via an ink extraction pipe.

[0013] Preferably, the return end of the print head is fixedly connected to the filter via a connecting pipe, and the output end of the filter is connected to the interior of the auxiliary compartment via a return pipe.

[0014] Preferably, a liquid level sensor is installed inside the secondary storage area.

[0015] Preferably, an ink injection tube is fixedly connected to the top of the cover plate, a filter basket is slidably connected inside the ink injection tube, a filter screen is provided at the bottom of the filter basket, and a cap is provided at the top of the ink injection tube.

[0016] Preferably, synchronous electric push rods are fixedly connected to both sides of the main storage area and the auxiliary storage area, and lifting plates are fixedly connected to the output ends of the four synchronous electric push rods. The same scraper is fixedly connected to the bottom end of every two lifting plates, and the two scrapers are slidably connected inside the main storage area and the auxiliary storage area, respectively.

[0017] The present invention has the following technical effects.

[0018] 1. This utility model uses a triple anti-settling mechanism of mechanical stirring, ink circulation and bubble disturbance to significantly improve the anti-settling effect. The mechanical stirring adopts a specially designed stirring fan, which can achieve good stirring effect at low speed, avoids the generation of too many bubbles, and at the same time avoids the problem of ink interruption, ink splatter and poor printing accuracy caused by bubbles entering the print head.

[0019] 2. This utility model adopts a filter and a dual-compartment design with a main compartment and a secondary compartment, which not only prevents sedimentation but also removes impurities from the ink. In conjunction with an air pump and a microporous airflow nozzle, the bubble agitation acts on the dead corner at the bottom of the secondary compartment, generating tiny bubbles at the bottom of the ink tank to completely solve the problem of pigment ink sedimentation.

[0020] 3. This utility model achieves low-energy stable operation and convenient maintenance of the equipment through modular component layout, low-energy drive design and air intake filter structure. The core components are independently controlled and operate at low speed. The air pump intake is pre-treated to reduce impurities. Each functional area is clearly divided by partition plates. It can reduce the energy consumption cost of the equipment by eliminating the need for complex control systems and high-frequency maintenance. Attached Figure Description

[0021] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0022] Figure 1 This is a schematic diagram of the assembly structure of the cover plate, the geared motor and the liquid level sensor in this utility model;

[0023] Figure 2 This is a schematic diagram of the assembly structure of the rotating shaft, stirring fan and geared motor of this utility model;

[0024] Figure 3 This is a schematic diagram of the assembly structure of the synchronous electric push rod, lifting plate and scraper in this utility model;

[0025] Figure 4 This is a schematic diagram of the assembly structure of the ink tank body, the bottom shell of the equipment, and the partition plate in this utility model;

[0026] Figure 5 This is a schematic diagram of the assembly structure of the ink injection tube, filter basket and cap in this utility model.

[0027] Reference numerals: 1. Ink tank body; 2. Equipment bottom shell; 3. Divider plate; 4. Secondary tank area; 5. Main tank area; 6. Auxiliary circulation pump; 7. Cover plate; 8. Rotating shaft; 9. Stirring fan; 10. Gear motor; 11. Pump; 12. Ink extraction tube; 13. Output tube; 14. Print head; 15. Filter; 16. Connecting tube; 17. Return tube; 18. Air pump; 19. Coil; 20. Microporous airflow nozzle; 21. Filter cover; 22. Synchronous electric push rod; 23. Lifting plate; 24. Scraper; 25. Liquid level sensor; 26. Ink filling tube; 27. Filter basket; 28. Filter screen; 29. ​​Cover. Detailed Implementation

[0028] The foregoing and other technical contents, features and effects of this utility model are described in conjunction with the appendix below. Figures 1 to 5 The detailed description of the embodiments will make this clear. All references to the following embodiments are made with reference to the accompanying drawings.

[0029] Exemplary embodiments of the present invention will now be described with reference to the accompanying drawings.

[0030] This utility model relates to an ink tank for digital printing machines that prevents ink settling. Figure 1 and Figure 2 As shown, this utility model includes an ink tank body 1. The interior of the ink tank body 1 is divided into a main compartment area 5, a secondary compartment area 4, and an equipment compartment by a partition plate 3. A cover plate 7 is provided on the top of the ink tank body 1. The cover plate 7 is fixed to the top of the ink tank body 1 by fixing bolts. A rotating shaft 8 is rotatably connected to the top of the cover plate 7. An agitator 9 is fixedly connected to the rotating shaft 8. The agitator 9 is located inside the secondary compartment area 4 and is spirally distributed on the rotating shaft 8. The design of the agitator 9 takes into account the characteristics of ink, featuring a large area and low resistance, which can achieve effective agitation at a low speed and avoid excessive air bubbles generated by high-speed agitation. Multiple micro-perforated airflow nozzles 20 are installed at the bottom of the secondary compartment 4. The multiple micro-perforated airflow nozzles 20 are equidistantly distributed at the bottom of the secondary compartment 4. An auxiliary circulation pump 6 is installed between the main compartment 5 and the secondary compartment 4. The auxiliary circulation pump 6 is installed in the equipment compartment and is connected to the power supply and controller. A pump 11 is connected to one side of the main compartment 5. The output end of the pump 11 is connected to the print head 14. The return end of the print head 14 is connected to a filter 15. The filter 15 adopts a multi-stage filtration design, which can effectively remove impurities and aggregated pigment particles in the ink. The output end of the filter 15 is connected to the secondary compartment 4.

[0031] In this embodiment, during equipment operation, the rotating shaft 8 drives the spiral stirring fan 9 to rotate at a low speed. The stirring fan 9, through its large-area, low-resistance blade structure, forms a full-coverage ink circulation within the secondary storage area 4, ensuring that pigment particles in the ink of the secondary storage area 4 remain suspended and dispersed, preventing aggregation and sedimentation. Simultaneously, microbubbles are evenly sprayed through the microporous airflow nozzle 20. These bubbles rise slowly within the ink of the secondary storage area 4, forming a vertically turbulent airflow that acts on the easily sedimenting area at the bottom of the storage area, preventing pigment particles from accumulating at the bottom of the secondary storage area 4. The auxiliary circulation pump 6 within the equipment storage area is activated, drawing ink from the secondary storage area 4 and transporting it to the main storage area 5, thus achieving the goal of the main storage area 5... The ink in the main chamber 5 and the secondary chamber 4 circulates together. At the same time, the ink levels in the main chamber 5 and the secondary chamber 4 are kept in dynamic balance through the circulation system to ensure ink supply stability. The pump 11 is started to draw ink from the main chamber 5 and deliver it to the print head 14 to provide a continuous and stable ink supply to the print head and ensure smooth printing. The ink that is not consumed by the print head 14 flows into the filter 15 through the return end. After passing through the multi-stage filtration structure inside the filter 15, the pigment particles and impurities that have accumulated in the ink are intercepted, preventing them from flowing back into the chamber and causing sedimentation or clogging of the ink path. The filtered clean ink flows back into the secondary chamber 4, completing one ink supply and return closed loop and realizing efficient use of ink.

[0032] As an example, such as Figure 2 As shown, a geared motor 10 is fixedly connected to the top of the cover plate 7. The geared motor 10 is connected to the power supply and the controller. The output end of the geared motor 10 is fixedly connected to the top of the rotating shaft 8.

[0033] In this embodiment, during mechanical stirring, the geared motor 10 drives the rotating shaft 8 to rotate, thereby enabling the rotating shaft 8 to drive the stirring fan 9 to rotate at a low speed.

[0034] As an example, such as Figure 2 As shown, the bottom of the ink tank body 1 is fixedly connected to the device base shell 2. A heat dissipation hole is opened on one side of the device base shell 2. An air pump 18 is installed inside the device base shell 2. The air pump 18 is connected to the power supply and the controller. The output end of the air pump 18 is fixedly connected to the coil 19. The coil 19 is a serpentine tube. Multiple micro-hole airflow nozzles 20 are fixedly connected to the coil 19. The air inlet end of the air pump 18 is fixedly connected to the filter cover 21 through the air inlet pipe. The filter cover 21 is equipped with a filter screen inside and is located on the outside of the device base shell 2.

[0035] In this embodiment, when bubble agitation is performed, the air pump 18 is started, so that the outside air enters the air pump 18 after being filtered by the filter cover 21 at the air inlet end. The air pump 18 delivers compressed air to the serpentine coil 19 at the bottom of the auxiliary compartment 4, and finally sprays out tiny bubbles through multiple micro-hole airflow nozzles 20 on the coil 19, so as to achieve uniform spraying of tiny bubbles by multiple micro-hole airflow nozzles 20.

[0036] As an example, such as Figure 2 As shown, the output end of the auxiliary circulation pump 6 is connected to the main compartment 5 through the output fixed pipe, and the ink extraction end of the auxiliary circulation pump 6 is connected to the secondary compartment 4 through the liquid extraction fixed pipe.

[0037] In this embodiment, when ink is input into the main compartment 5, the auxiliary circulation pump 6 is started, so that the auxiliary circulation pump 6 draws ink from the secondary compartment 4 through the liquid extraction fixed pipe, and then the auxiliary circulation pump 6 delivers the ink to the main compartment 5 through the output fixed pipe, so as to realize the ink circulation between the main compartment 5 and the secondary compartment 4.

[0038] As an example, such as Figure 2 As shown, the output end of the pump 11 is connected to the ink inlet end of the print head 14 through the output pipe 13. The pump 11 is connected to the power supply and controller. The ink extraction end of the pump 11 is connected to the interior of the main chamber area 5 through the ink extraction pipe 12.

[0039] In this embodiment, when supplying ink to the print head 14, the pump 11 is started. The pump 11 draws ink from the main chamber area 5 through the ink extraction tube 12, and the pump 11 delivers the ink to the ink inlet end of the print head 14 through the output tube 13, so as to provide a continuous and stable ink supply to the print head.

[0040] As an example, such as Figure 2 As shown, the return end of the print head 14 is fixedly connected to the filter 15 through the connecting pipe 16, and the output end of the filter 15 is connected to the interior of the auxiliary compartment 4 through the return pipe 17.

[0041] In this embodiment, during the operation of the print head 14, ink that is not consumed immediately flows into the filter 15 through the connecting pipe 16 at the return end, and clean ink flows back into the sub-compartment area 4 through the return pipe 17, thus realizing ink return.

[0042] As an example, such as Figure 2 and Figure 4 As shown, a liquid level sensor 25 is installed inside the secondary compartment 4. The liquid level sensor 25 is connected to the power supply and the controller. The liquid level sensor 25 can monitor the ink level in real time and provide data for the control system.

[0043] In this embodiment, during equipment operation, the ink level data of the secondary compartment 4 is transmitted to the controller in real time through the liquid level sensor 25. When the liquid level is lower than the preset lower limit, the controller issues an ink replenishment prompt, and the operator can replenish the ink in time to avoid printing interruption due to insufficient ink.

[0044] As an example, such as Figure 5As shown, an ink injection tube 26 is fixedly connected to the top of the cover plate 7. The cover plate 7 is fixedly connected to the ink tank body 1 by fixing bolts. A filter basket 27 is slidably connected inside the ink injection tube 26. A filter screen 28 is provided at the bottom of the filter basket 27. A cap 29 is provided at the top of the ink injection tube 26. The cap 29 is threadedly connected to the ink injection tube 26. The inner wall of the cap 29 abuts against the top of the filter basket 27.

[0045] In this embodiment, when adding ink, the threaded cap 29 at the top of the ink filling tube 26 is opened, and the container containing pigment ink is aligned with the opening of the ink filling tube 26. The ink flows into the filter basket 27 inside the ink filling tube 26. The filter screen 28 at the bottom of the filter basket 27 can perform primary filtration of the ink, intercepting large particles and foreign objects in the ink to prevent them from directly entering the chamber and causing contamination. When it is necessary to clean the filter screen 28, the cap 29 of the ink filling tube 26 is opened, and the filter basket 27 is pulled out from the ink filling tube 26 to clean the impurities attached to the surface of the filter screen 28.

[0046] As an example, such as Figure 2 and Figure 3 As shown, synchronous electric push rods 22 are fixedly connected to both sides of the main storage area 5 and the auxiliary storage area 4. The synchronous electric push rods 22 are connected to the power supply and the controller. The output ends of the four synchronous electric push rods 22 are fixedly connected to lifting plates 23. The lifting plates 23 are L-shaped and are slidably connected to the cover plate 7. The bottom ends of every two lifting plates 23 are fixedly connected to the same scraper 24. The two scrapers 24 are slidably connected inside the main storage area 5 and the auxiliary storage area 4, respectively, and overlap with the inner walls of the main storage area 5 and the auxiliary storage area 4, respectively.

[0047] In this embodiment, when cleaning the inner walls of the main storage area 5 and the secondary storage area 4, the synchronous electric push rods 22 on both sides of the main storage area 5 and the secondary storage area 4 are activated. The synchronous electric push rods 22 drive the lifting plate 23 to slide vertically along the cover plate 7, thereby driving the scraper 24 to move up and down on the inner wall of the storage compartment. The scraper 24 is in close contact with the inner wall of the storage compartment, which can scrape off the residual ink attached to the inner wall. This not only cleans the inner walls of the main storage area 5 and the secondary storage area 4, but also reduces ink waste.

[0048] Working principle of this utility model:

[0049] S1. Open the threaded cap 29 at the top of the ink filling tube 26, align the container containing pigment ink with the opening of the ink filling tube 26, and the ink flows into the filter basket 27 inside the ink filling tube 26. The filter screen 28 at the bottom of the filter basket 27 can perform primary filtration of the ink, intercepting large particles and foreign objects in the ink.

[0050] S2. The filtered ink flows into the secondary compartment 4 through the ink injection tube 26. The liquid level sensor 25 in the secondary compartment 4 monitors the ink level in real time. When the liquid level reaches the preset upper limit, the ink injection stops and the cap 29 is screwed on. The inner wall of the cap 29 abuts against the top of the filter basket 27.

[0051] S3. The geared motor 10 on the top of the cover plate 7 starts, driving the rotating shaft 8 to rotate the spiral stirring fan 9 at a low speed. The stirring fan 9 forms a full-coverage ink circulation in the secondary storage area 4 through the large-area, low-resistance blade structure, so that the pigment particles in the ink in the secondary storage area 4 are always in a suspended and dispersed state.

[0052] S4. The air pump 18 inside the bottom shell 2 of the equipment starts. Outside air enters the air pump 18 after being filtered by the filter cover 21 at the air inlet end. The air pump 18 delivers compressed air to the serpentine coil 19 at the bottom of the auxiliary compartment 4. Finally, tiny bubbles are evenly sprayed out through multiple micro-hole airflow nozzles 20 on the coil 19. The bubbles rise slowly in the ink in the auxiliary compartment 4, forming a vertical turbulent airflow.

[0053] S5. The auxiliary circulation pump 6 in the equipment compartment starts, drawing ink from the secondary compartment 4 through the liquid extraction fixed pipe, and then delivering it to the main compartment 5 through the output fixed pipe. The pump 11 draws ink from the main compartment 5 through the ink extraction pipe 12, and delivers it to the ink inlet end of the print head 14 through the output pipe 13. The ink not consumed by the print head 14 flows into the filter 15 through the return end connection pipe 16. Through the multi-stage filtration structure inside the filter 15, the pigment particles and impurities that have accumulated in the ink are intercepted. The filtered clean ink flows back into the secondary compartment 4 through the return pipe 17.

[0054] S6. After the equipment has been running for a certain period of time, the controller starts the synchronous electric push rods 22 on both sides of the main compartment 5 and the auxiliary compartment 4. The synchronous electric push rods 22 drive the lifting plate 23 to slide vertically along the cover plate 7, thereby driving the scraper 24 to move up and down on the inner wall of the compartment. The scraper 24 is tightly attached to the inner wall of the compartment, which can scrape off the residual ink attached to the inner wall.

[0055] S7. Periodically open the ink filling tube 26 cover 29, pull the filter basket 27 out of the ink filling tube 26, clean the impurities attached to the surface of the filter screen 28, and transmit the ink level data of the secondary compartment 4 to the controller in real time through the liquid level sensor 25. When the liquid level is lower than the preset lower limit, the controller issues an ink replenishment prompt, and the operator can replenish the ink in time.

[0056] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. An ink tank for digital printing machines that prevents ink settling, comprising an ink tank body (1), characterized in that, The interior of the ink tank body (1) is divided into a main tank area (5), a secondary tank area (4) and an equipment compartment by a partition plate (3). The top of the ink tank body (1) is provided with a cover plate (7), and a rotating shaft (8) is rotatably connected to the top of the cover plate (7). A stirring fan (9) is fixedly connected to the rotating shaft (8). Multiple micro-hole airflow nozzles (20) are provided at the bottom of the secondary tank area (4). An auxiliary circulation pump (6) is provided between the main tank area (5) and the secondary tank area (4). A pump (11) is connected to one side of the main tank area (5). The output end of the pump (11) is connected to the print head (14). The return end of the print head (14) is connected to a filter (15). The output end of the filter (15) is connected to the secondary tank area (4).

2. The ink tank for preventing ink settling in a digital printing machine according to claim 1, characterized in that, A geared motor (10) is fixedly connected to the top of the cover plate (7), and the output end of the geared motor (10) is fixedly connected to the top of the rotating shaft (8).

3. The ink tank for preventing ink settling in a digital printing machine according to claim 1, characterized in that, The bottom of the ink tank body (1) is fixedly connected to the device bottom shell (2). An air pump (18) is installed inside the device bottom shell (2). The output end of the air pump (18) is fixedly connected to a coil (19). Multiple micro-hole airflow nozzles (20) are fixedly connected to the coil (19). The air inlet end of the air pump (18) is fixedly connected to a filter cover (21) through an air inlet pipe.

4. The ink tank for preventing ink settling in a digital printing machine according to claim 1, characterized in that, The output end of the auxiliary circulation pump (6) is connected to the main compartment area (5) through an output fixed pipe, and the ink extraction end of the auxiliary circulation pump (6) is connected to the secondary compartment area (4) through a liquid extraction fixed pipe.

5. The ink tank for preventing ink settling in a digital printing machine according to claim 1, characterized in that, The output end of the pump (11) is connected to the ink inlet end of the print head (14) through the output pipe (13), and the ink extraction end of the pump (11) is connected to the interior of the main compartment area (5) through the ink extraction pipe (12).

6. The ink tank for preventing ink settling in a digital printing machine according to claim 1, characterized in that, The return end of the print head (14) is fixedly connected to the filter (15) through the connecting pipe (16), and the output end of the filter (15) is connected to the interior of the auxiliary compartment (4) through the return pipe (17).

7. The ink tank for preventing ink settling in a digital printing machine according to claim 1, characterized in that, The secondary storage area (4) is equipped with a liquid level sensor (25).

8. The ink tank for preventing ink settling in a digital printing machine according to claim 1, characterized in that, The top of the cover plate (7) is fixedly connected to an ink injection tube (26), and a filter basket (27) is slidably connected inside the ink injection tube (26). A filter screen (28) is provided at the bottom of the filter basket (27), and a cap (29) is provided at the top of the ink injection tube (26).

9. The ink tank for preventing ink settling in a digital printing machine according to claim 1, characterized in that, Both sides of the main storage area (5) and the auxiliary storage area (4) are fixedly connected with synchronous electric push rods (22). The output ends of the four synchronous electric push rods (22) are fixedly connected with lifting plates (23). The bottom ends of every two lifting plates (23) are fixedly connected with the same scraper (24). The two scrapers (24) are slidably connected inside the main storage area (5) and the auxiliary storage area (4).

Images