Ink cavity cleaning structure

Abstract

This invention relates to the field of ink supply device technology, and discloses an ink chamber cleaning structure, including: an ink beam, a first three-way pipe, a first water inlet pipe, a first ink inlet pipe, a second ink inlet pipe, a first ink return pipe, a second ink return pipe, a first vacuum generator, a first ink pump, a distributor, an ink tank, a water inlet two-way pipe, a water outlet two-way pipe, a first water inlet three-way pipe, a second water inlet three-way pipe, a first water outlet three-way pipe, and a second water outlet three-way pipe. The ink chamber cleaning structure of this invention features a first vacuum generator on the first water inlet pipe as a power source to increase water pressure, resulting in better cleaning performance. During water pump cleaning, by controlling the opening and closing of the water inlet two-way pipe, the water outlet two-way pipe, the first water inlet three-way pipe, the second water inlet three-way pipe, the first water outlet three-way pipe, and the second water outlet three-way pipe, two pathways are formed in the pump body: an ink inlet pathway and a cleaning pathway. This allows ink and cleaning water to enter the pump body from two different directions, achieving a better cleaning effect.

Description

Technical Field

[0001] This invention relates to the field of ink supply device technology, and in particular to an ink cavity cleaning structure. Background Technology

[0002] In the printing industry, before transferring an image onto cardboard, ink needs to be supplied to the ink chamber via an ink pump. For example, when printing on cardboard, a doctor blade unit is used. The doctor blade unit includes an ink beam with an ink inlet and an overflow outlet. The ink inlet is located on the lower side of the ink beam. When the doctor blade unit is working, the anilox roller and the ink beam are in close contact to form the ink chamber. Ink is continuously supplied to the ink chamber by the ink pump through the ink inlet. At the same time, the anilox roller rotates, and the ink is transferred through the anilox roller to the printing plate roller. Finally, the printing plate roller transfers the ink onto the surface of the cardboard to form a specific image. The ink beam is also equipped with an overflow outlet so that if the ink level is too high, it can flow out and return to the ink tank.

[0003] After the equipment is shut down, the ink cartridges and ink pumps need to be thoroughly cleaned, including liquid recovery and comprehensive cleaning, to prevent ink from hardening and clumping. Currently, the ink pump is cleaned by directly supplying clean water through a return pump to flush the internal pipes and chambers, which is insufficient for thoroughly cleaning the corners and other hard-to-reach areas within the chambers. Therefore, there is still room for improvement in current ink pumps. Summary of the Invention

[0004] The present invention aims to solve at least one of the technical problems existing in the background art.

[0005] This invention provides an ink cavity cleaning structure, comprising:

[0006] Ink beam, first tee pipe, first water inlet pipe, first ink inlet pipe, second ink inlet pipe, first ink return pipe, second ink return pipe, first vacuum generator, first ink pump, distributor, ink tank, water inlet two-way pipe, water outlet two-way pipe, first water inlet tee, second water inlet tee, first water outlet tee and second water outlet tee;

[0007] The ink beam is provided with a first ink return port, a second ink return port, and an ink inlet. The ink inlet is located below the first and second ink return ports. The first and second ink return ports are located on both sides along the length of the ink beam. There are three or more ink inlets, which are arranged at intervals along the length of the ink beam.

[0008] The three ports of the first three-way pipe are respectively connected to the first ink return port, the first water inlet pipe, and the first ink return pipe.

[0009] The first vacuum generator is mounted on the first water inlet pipe. The first vacuum generator includes a first suction end, a first ejection end, and a first air inlet end. The first ejection end is positioned toward the first ink return port, the first suction end is positioned toward the inlet of the first water inlet pipe, and the first air inlet end is used to connect to an external air source. The second ink return pipe is connected to the second ink return port.

[0010] The first inlet tee, the inlet two-way pipe, the second inlet tee, and the inlet pipe are connected in sequence;

[0011] The first outlet tee, the outlet 2 pipe, the second outlet tee, and the outlet pipe are connected in sequence;

[0012] The first inlet tee is also connected to the second outlet tee via the first bypass pipe.

[0013] The first outlet tee is also connected to the second inlet tee via a second bypass pipe.

[0014] The inlet two-way pipe and the outlet two-way pipe are respectively equipped with an inlet pipe valve and an outlet pipe valve. Both ends of the first bypass pipe are equipped with a first bypass pipe valve, and both ends of the second bypass pipe are equipped with a second bypass pipe valve.

[0015] The second water outlet tee is connected to all the ink inlets via the second ink return pipe and the distributor, and the first water inlet tee is connected to the ink tank via the first ink return pipe.

[0016] The beneficial effects of this invention are as follows: The ink chamber cleaning structure of this invention is equipped with a first vacuum generator on the first water inlet pipe as a power source to increase water pressure, which has the advantages of flexible arrangement and lower cost compared with the method of using a booster water pump; the first ink return port and the second ink return port are respectively located on both sides of the ink beam, and the first ink return port is connected to the first water inlet pipe through the first three-way pipe. During cleaning, the first ink return port and the second ink return port form the main flushing flow channel; multiple ink inlets are provided, which allows the reverse rotation of the first ink pump to achieve multi-point ink return, forming multiple adsorption points for impurities, sucking away more deposited impurities, and achieving better cleaning effect; while cleaning the water pump, by controlling the opening and closing of the inlet two-way pipe, the outlet two-way pipe, the first inlet three-way pipe, the second inlet three-way pipe, the first outlet three-way pipe and the second outlet three-way pipe, two pathway states are formed for the pump body: the ink inlet path and the cleaning path, so that ink and cleaning water are introduced into the pump body from two different directions, achieving a better cleaning effect.

[0017] As a sub-solution of the above technical solution, the second ink return tube is provided with a second vacuum generator. The second vacuum generator includes a second suction end, a second ejection end and a second air inlet end. The second suction end is arranged facing the second ink return port, the second ejection end is arranged away from the second ink return port, and the second air inlet end is used to connect to an external air source.

[0018] As some sub-solutions of the above technical solution, the ink cavity cleaning structure further includes a third vacuum generator, which is disposed on the first ink return tube. The third vacuum generator includes a third suction end, a third ejection end and a third air inlet end. The third suction end is disposed facing the first ink return port, the third ejection end is disposed away from the first ink return port, and the third air inlet end is used to connect to an external air source.

[0019] As a sub-solution of the above technical solution, the number of ink inlets is seven.

[0020] As some sub-solutions of the above technical solution, the seven ink inlets are arranged at equal intervals on the ink beam.

[0021] As some sub-solutions of the above technical solution, the ink cavity cleaning structure further includes a third water inlet pipe and a cooling water pipe. The outlet end of the third water inlet pipe is connected to the cooling water pipe. The outlet end of the cooling water pipe is located above the position where the ink roller is installed on the ink beam, and the outlet end of the cooling water pipe is set downwards.

[0022] As some sub-solutions of the above technical solution, the ink cavity cleaning structure further includes a side sealing pad, a side sealing baffle, a side sealing water receiving tray, a side sealing drain pipe, and a side sealing spray pipe. The side sealing baffle and the side sealing pad are fixed on the ink beam. The side sealing baffle is located on the side of the side sealing pad facing away from the middle of the ink beam. A side sealing cleaning channel is formed between the side sealing baffle and the side sealing pad. The side sealing spray pipe is fixed on the ink beam and is located between the side sealing baffle and the side sealing pad. The side sealing spray pipe is oriented towards the side sealing cleaning channel. The side sealing water receiving tray is located below the side sealing cleaning channel and is fixedly connected to the ink beam.

[0023] As a sub-solution of the above technical solution, the ink cavity cleaning structure further includes side sealing foam, which is connected to the side of the side sealing pad facing the side sealing baffle.

[0024] As some sub-solutions of the above technical solution, the side sealing baffle is connected to the ink beam through an adjustable structure, and the adjustable structure allows the side sealing baffle to be adjusted along the width direction.

[0025] As some sub-solutions of the above technical solution, the adjustable structure includes an adjustment groove and an adjustment screw. The adjustment groove is arranged on the side sealing baffle along the front-back direction, and the adjustment screw passes through the adjustment groove and is threadedly connected to the ink beam. Attached Figure Description

[0026] The above and / or additional aspects and advantages of the present invention will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0027] Figure 1 Schematic diagram of an embodiment of the ink cavity cleaning structure Figure 1 ;

[0028] Figure 2 Schematic diagram of an embodiment of the ink cavity cleaning structure Figure 2 ;

[0029] Figure 3 This is a schematic diagram of the first ink pump.

[0030] Figure 4 Axonometric for side seal Figure 1 ;

[0031] Figure 5 Axonometric for side seal Figure 2 ;

[0032] Figure 6 Simplified diagram of the pipeline;

[0033] Figure 7 This is a piping diagram of the first ink pump in the ink inlet path state. Solid lines indicate water flow, and dashed lines indicate a circuit break.

[0034] Figure 8 This is a piping diagram showing the cleaning path of the first ink pump. Solid lines indicate water flow, and dashed lines indicate a circuit break.

[0035] In the attached diagram: 1-Ink beam; 11-First ink inlet; 12-Second ink inlet; 13-Ink inlet; 21-First water inlet pipe; 22-Cooling water pipe; 23-Third water inlet pipe;

[0036] 3-Second ink inlet tube;

[0037] 41 - First ink tube; 42 - Second ink tube;

[0038] 51-First ink pump; 5111-Inlet pipe; 5112-Outlet pipe; 512-Inlet two-way pipe; 5121-Inlet valve; 513-Outlet two-way pipe; 5131-Outlet valve; 514-First inlet tee; 515-Second inlet tee; 516-First outlet tee; 517-Second outlet tee; 5181-First bypass pipe; 51811-First bypass valve; 5182-Second bypass pipe; 51821-Second bypass valve; 52-Ink tank;

[0039] 61-First tee pipe;

[0040] 71-First vacuum generator; 73-Second vacuum generator; 72-Third vacuum generator;

[0041] 81-Side sealing pad; 82-Side sealing foam; 83-Side sealing baffle; 831-Adjusting groove; 84-Side sealing nozzle; 85-Adjusting screw; 86-Side sealing water tray; 87-Side sealing drain pipe;

[0042] 9-Splitter. Detailed Implementation

[0043] Embodiments of the present invention are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0044] In the description of this invention, it should be understood that the orientation descriptions, such as up, down, front, back, left, right, etc., are based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting this invention.

[0045] In the description of this invention, "several" means an indefinite quantity, "multiple" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. The use of "first" and "second" in the description is merely for distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features, or implicitly indicating the order of the indicated technical features. The use of "and / or" throughout the text indicates three parallel solutions; for example, A and / or B indicates a solution satisfied by A, a solution satisfied by B, or a solution satisfied by both A and B.

[0046] In the description of this invention, if there is a short phrase containing multiple parallel features, the modifier in the phrase defines the closest feature. For example, "B, C, and E connected to D are set on A" means that B is set on A, E is connected to D, and C is not defined. However, modifiers indicating the relationship between features, such as "interval setting" or "circular arrangement," do not fall into this category. Modifiers preceded by "all" define all features in the short phrase. For example, "B, C, and D are all set on A" means that B, C, and D are all set on A. In statements where the subject is omitted, the omitted subject is the subject of the preceding statement; that is, "A has B and includes C" means that A has B and A includes C.

[0047] In the description of this invention, unless otherwise explicitly defined, terms such as "set up," "install," and "connect" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this invention in conjunction with the specific content of the technical solution.

[0048] The following is combined with Figures 1 to 8 Embodiments of the present invention will be described.

[0049] This embodiment relates to an ink cavity cleaning structure, including:

[0050] Ink beam 1, first tee pipe 61, first water inlet pipe 21, first ink inlet pipe, second ink inlet pipe 3, first ink return pipe 41, second ink return pipe 42, first vacuum generator 71, first ink pump 51, distributor 9, ink tank 52, water inlet two-way pipe 512, water outlet two-way pipe 513, first water inlet tee 514, second water inlet tee 515, first water outlet tee 516, and second water outlet tee 517;

[0051] The ink beam 1 is provided with a first ink return port 11, a second ink return port 12 and an ink inlet 13. The ink inlet 13 is located below the first ink return port 11 and the second ink return port 12. The first ink return port 11 and the second ink return port 12 are respectively located on both sides along the length direction of the ink beam 1. There are more than three ink inlets 13, and the ink inlets 13 are arranged at intervals along the length direction of the ink beam 1.

[0052] The three ports of the first three-way pipe 61 are respectively connected to the first ink return port 11, the first water inlet pipe 21, and the first ink return pipe 41.

[0053] The first vacuum generator 71 is mounted on the first water inlet pipe 21. The first vacuum generator 71 includes a first suction end, a first ejection end and a first air inlet end. The first ejection end is disposed toward the first ink return port 11, the first suction end is disposed toward the inlet of the first water inlet pipe 21, and the first air inlet end is used to connect to an external air source. The second ink return pipe 42 is connected to the second ink return port 12.

[0054] The first water inlet tee 514, the water inlet two-way pipe 512, the second water inlet tee 515, and the water inlet 5111 are connected in sequence;

[0055] The first water outlet tee 516, the water outlet two-way pipe 513, the second water outlet tee 517, and the water outlet 5112 are connected in sequence;

[0056] The first inlet tee 514 is also connected to the second outlet tee 517 via the first bypass pipe 5181.

[0057] The first outlet tee 516 is also connected to the second inlet tee 515 via the second bypass pipe 5182.

[0058] The inlet two-way pipe 512 and the outlet two-way pipe 513 are respectively equipped with an inlet pipe valve 5121 and an outlet pipe valve 5131. Both ends of the first bypass pipe 5181 are equipped with a first bypass pipe valve 51811, and both ends of the second bypass pipe 5182 are equipped with a second bypass pipe valve 51821.

[0059] The second water outlet tee 517 is connected to all the ink inlets 13 via the second ink return pipe 42 and the distributor 9, and the first water inlet tee 514 is connected to the ink tank 52 via the first ink return pipe 41.

[0060] The ink chamber cleaning structure of the present invention is equipped with a first vacuum generator 71 on the first water inlet pipe 21 as a power source to increase water pressure, which has the advantages of flexible arrangement and lower cost compared with the method of using a booster water pump; the first ink return port 11 and the second ink return port 12 are respectively located on both sides of the ink beam 1, and the first ink return port 11 is connected to the first water inlet pipe 21 through the first tee pipe 61. During cleaning, the first ink return port 11 and the second ink return port 12 form the main flushing flow channel; multiple ink inlets 13 are provided to provide the first ink pump 5 Reversing step 1 enables multi-point ink return, forming multiple adsorption points for impurities, thus removing more deposited impurities and achieving better cleaning results. When cleaning the water pump, by controlling the opening and closing of the inlet two-way pipe 512, outlet two-way pipe 513, first inlet three-way pipe 514, second inlet three-way pipe 515, first outlet three-way pipe 516, and second outlet three-way pipe 517, two pathways are formed for the pump body: an ink inlet pathway and a cleaning pathway. This allows ink and cleaning water to enter the pump body from two different directions, achieving a better cleaning effect.

[0061] The first ink pump 51 includes two pathway states: an ink inlet pathway and a cleaning pathway. In the ink inlet pathway state, such as... Figure 3 As shown, both first bypass valves 51811 and both second bypass valves 51821 are closed, preventing water from flowing through the first and second bypass pipes. Ink or water enters the ink pump through the first inlet tee 514, the inlet two-way pipe 512, the second inlet tee 515, and the inlet port 5111. The ink pump pressurizes the water and outputs it to the target location through the first outlet tee 516, the outlet two-way pipe 513, the second outlet tee 517, and the outlet port 5112.

[0062] In the cleaning path state, such as Figure 4As shown, both first bypass valves 51811 and both second bypass valves 51821 are switched to the open state. Water sequentially enters the ink pump through the first inlet tee 514, the first bypass pipe 5181, the first outlet tee 516, and the outlet pipe 5112, and then flows to the target location through the inlet pipe 5111, the second inlet tee 515, the second bypass pipe 5182, and the second outlet tee 517. In the ink inlet path, water enters the pump body from the inlet pipe 5111 and flows out through the outlet pipe 5112. In the cleaning path, water enters the pump body from the outlet pipe 5112 and flows out through the inlet pipe 5111. The water enters the pump body from different directions, resulting in a more thorough flushing of the pump body, especially in the dead corners of the pump, which is more conducive to improving the cleaning efficiency of the pump body.

[0063] The first ink pump 51 is a dual diaphragm pump. The use of a dual diaphragm pump body can deliver ink better.

[0064] The first bypass valve 51811, the second bypass valve 51821, the inlet valve 5121, and the outlet valve 5131 can all be pneumatic or electric valves as needed. Specifically, in this embodiment, the first bypass valve 51811, the second bypass valve 51821, the inlet valve 5121, and the outlet valve 5131 are all electric shut-off valves.

[0065] The second ink return tube 42 is provided with a second vacuum generator 73. The second vacuum generator 73 includes a second suction end, a second ejection end and a second air inlet end. The second suction end is arranged facing the second ink return port 12, the second ejection end is arranged away from the second ink return port 12, and the second air inlet end is used to connect to an external air source.

[0066] The ink chamber cleaning structure also includes a third vacuum generator 72, which is disposed on the first ink return tube 41. The third vacuum generator 72 includes a third suction end, a third ejection end and a third air inlet end. The third suction end is disposed facing the first ink return port 11, the third ejection end is disposed away from the first ink return port 11, and the third air inlet end is used to connect to an external air source.

[0067] The number of ink inlets 13 is seven.

[0068] The seven ink inlets 13 are arranged at equal intervals on the ink beam 1.

[0069] The ink chamber cleaning structure also includes a third water inlet pipe 23 and a cooling water pipe 22. The outlet end of the third water inlet pipe 23 is connected to the cooling water pipe 22. The outlet end of the cooling water pipe 22 is located above the position where the ink roller is installed on the ink beam 1, and the outlet end of the cooling water pipe 22 is set downwards.

[0070] The ink chamber cleaning structure further includes a side sealing pad 81, a side sealing baffle 83, a side sealing water receiving tray 86, a side sealing drain pipe 87, and a side sealing spray pipe 84. The side sealing baffle 83 and the side sealing pad 81 are fixed on the ink beam 1. The side sealing baffle 83 is located on the side of the side sealing pad 81 facing away from the middle of the ink beam 1, and a side sealing cleaning channel is formed between the side sealing baffle 83 and the side sealing pad 81. The side sealing spray pipe 84 is fixed on the ink beam 1 and is located between the side sealing baffle 83 and the side sealing pad 81. The side sealing spray pipe 84 is oriented towards the side sealing cleaning channel. The side sealing water receiving tray 86 is located below the side sealing cleaning channel and is fixedly connected to the ink beam 1.

[0071] The ink chamber cleaning structure also includes a side sealing foam 82, which is connected to the side of the side sealing pad 81 facing the side sealing baffle 83.

[0072] The side sealing baffle 83 is connected to the ink beam 1 through an adjustable structure, which allows the side sealing baffle 83 to be adjusted along the width direction.

[0073] The adjustable structure includes an adjustment groove 831 and an adjustment screw 85. The adjustment groove 831 is arranged on the side sealing baffle 83 in the front-back direction, and the adjustment screw 85 passes through the adjustment groove 831 and is threadedly connected to the ink beam 1.

[0074] The preferred embodiments of the present invention have been described in detail above, but the present invention is not limited to the embodiments described. Those skilled in the art can make various equivalent modifications or substitutions without departing from the spirit of the present invention, and these equivalent modifications or substitutions are all included within the scope defined by the claims of the present invention.

Claims

1. An ink chamber cleaning structure, characterized in that: include: Ink beam (1), first tee pipe (61), first water inlet pipe (21), first ink inlet pipe, second ink inlet pipe (3), first ink return pipe (41), second ink return pipe (42), first vacuum generator (71), first ink pump (51), distributor (9), ink tank (52), water inlet two-way pipe (512), water outlet two-way pipe (513), first water inlet tee (514), second water inlet tee (515), first water outlet tee (517) and second water outlet tee (516); The ink beam (1) is provided with a first ink return port (11), a second ink return port (12) and an ink inlet (13). The ink inlet (13) is located below the first ink return port (11) and the second ink return port (12). The first ink return port (11) and the second ink return port (12) are located on both sides along the length direction of the ink beam (1). There are more than three ink inlets (13). The ink inlets (13) are arranged at intervals along the length direction of the ink beam (1). The three ports of the first three-way pipe (61) are respectively connected to the first ink return port (11), the first water inlet pipe (21) and the first ink return pipe (41). The first vacuum generator (71) is mounted on the first water inlet pipe (21). The first vacuum generator (71) includes a first suction end, a first ejection end and a first air inlet end. The first ejection end is positioned toward the first ink return port (11), and the first suction end is positioned toward the inlet of the first water inlet pipe (21). The first air inlet end is used to connect to an external air source. The second ink return pipe (42) is connected to the second ink return port (12). The first inlet tee (514), the inlet two-way pipe (512), the second inlet tee (515), and the inlet pipe (5111) are connected in sequence; The first outlet tee (517), the outlet two-way pipe (513), the second outlet tee (516), and the outlet pipe (5112) are connected in sequence; The first inlet tee (514) is also connected to the second outlet tee (516) through the first bypass pipe (5181); The first outlet tee (517) is also connected to the second inlet tee (515) via the second bypass pipe (5182); The inlet two-way pipe (512) and the outlet two-way pipe (513) are respectively equipped with an inlet pipe valve (5121) and an outlet pipe valve (5131). The first bypass pipe (5181) is equipped with a first bypass pipe valve (51811) at both ends, and the second bypass pipe (5182) is equipped with a second bypass pipe valve (51821) at both ends. The second water outlet tee (516) is connected to all the ink inlets (13) through the second ink return pipe (42) and the distributor (9), and the first water inlet tee (514) is connected to the ink tank (52) through the first ink return pipe (41).

2. The ink cavity cleaning structure according to claim 1, characterized in that: The second ink return tube (42) is provided with a second vacuum generator (73). The second vacuum generator (73) includes a second suction end, a second ejection end and a second air inlet end. The second suction end is arranged facing the second ink return port (12) and the second ejection end is arranged away from the second ink return port (12). The second air inlet end is used to connect to an external air source.

3. The ink cavity cleaning structure according to claim 1, characterized in that: The ink chamber cleaning structure also includes a third vacuum generator (72), which is located on the first ink return tube (41). The third vacuum generator (72) includes a third suction end, a third ejection end and a third air inlet end. The third suction end is located facing the first ink return port (11), and the third ejection end is located away from the first ink return port (11). The third air inlet end is used to connect to an external air source.

4. The ink cavity cleaning structure according to claim 1, characterized in that: The number of ink inlets (13) is seven.

5. The ink cavity cleaning structure according to claim 4, characterized in that: The seven ink inlets (13) are arranged at equal intervals on the ink beam (1).

6. The ink cavity cleaning structure according to claim 1, characterized in that: The ink chamber cleaning structure also includes a third water inlet pipe (23) and a cooling water pipe (22). The outlet end of the third water inlet pipe (23) is connected to the cooling water pipe (22). The outlet end of the cooling water pipe (22) is located above the position where the ink roller is installed on the ink beam (1). The outlet end of the cooling water pipe (22) is set downwards.

7. The ink cavity cleaning structure according to claim 1, characterized in that: The ink chamber cleaning structure also includes a side sealing pad (81), a side sealing baffle (83), a side sealing water receiving tray (86), a side sealing drain pipe (87), and a side sealing spray pipe (84). The side sealing baffle (83) and the side sealing pad (81) are fixed on the ink beam (1). The side sealing baffle (83) is located on the side of the side sealing pad (81) facing away from the middle of the ink beam (1). A side sealing cleaning channel is formed between the side sealing baffle (83) and the side sealing pad (81). The side sealing spray pipe (84) is fixed on the ink beam (1). The side sealing spray pipe (84) is located between the side sealing baffle (83) and the side sealing pad (81). The side sealing spray pipe (84) is oriented towards the side sealing cleaning channel. The side sealing water receiving tray (86) is located below the side sealing cleaning channel. The side sealing water receiving tray (86) is fixedly connected to the ink beam (1).

8. The ink cavity cleaning structure according to claim 7, characterized in that: The ink chamber cleaning structure also includes a side sealing foam (82), which is connected to the side of the side sealing pad (81) facing the side sealing baffle (83).

9. The ink cavity cleaning structure according to claim 7, characterized in that: The side sealing baffle (83) is connected to the ink beam (1) through an adjustable structure, which allows the side sealing baffle (83) to be adjusted along the width direction.

10. The ink cavity cleaning structure according to claim 9, characterized in that: The adjustable structure includes an adjustment groove (831) and an adjustment screw (85). The adjustment groove (831) is arranged on the side sealing baffle (83) in the front-back direction. The adjustment screw (85) passes through the adjustment groove (831) and is threadedly connected to the ink beam (1).

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