Multi-chamber material box mechanism and gravure coating system

Abstract

The present application provides a multi-chamber cartridge mechanism and a gravure coating system, which relate to the technical field of battery production. The multi-chamber cartridge mechanism includes a frame and at least two blade cartridge mechanisms. The at least two blade cartridge mechanisms are arranged at intervals along the length direction of the frame. The gravure coating system includes a feeding system, a printing cylinder, and the above-mentioned multi-chamber cartridge mechanism. The feeding system is used to supply materials to the blade cartridge mechanism. The printing cylinder is arranged near the blade cartridge mechanism, and the tip of the blade of the blade cartridge mechanism abuts against the surface of the printing cylinder. By arranging two or more blade cartridge mechanisms on the frame, the multi-chamber cartridge mechanism can directly eliminate the cartridge structure at the position where the diaphragm needs to leave a blank, effectively solving the problem of slurry leakage into the blank area. When combined with the printing cylinder and the feeding system to form a gravure coating system, it can reduce the wear of the printing cylinder and the blade of the blade cartridge mechanism itself, improve the service life, and ensure the product quality of the coated diaphragm.

Description

Technical Field

[0001] This application relates to the technical field of battery production, and more particularly, to a multi-chamber cartridge mechanism and an intaglio coating system. Background Art

[0002] In the existing intaglio printing presses used in battery production, slurry leakage occurs when blank coating is required. For edge coating or zebra coating of battery separator films (hereinafter referred to as separator films or diaphragms), slurry leakage will contaminate the separator films and affect product quality. Summary of the Invention

[0003] An object of this application is to provide a multi-chamber cartridge mechanism, which can be used to improve the problem of slurry leakage and contamination of the separator film during edge coating or zebra coating of the existing battery separator film.

[0004] Another object of this application is to provide an intaglio coating system, which includes the above multi-chamber cartridge mechanism and has all the characteristics of the multi-chamber cartridge mechanism.

[0005] The embodiments of this application are implemented as follows:

[0006] The embodiments of this application provide a multi-chamber cartridge mechanism, including: a frame and at least two doctor blade cartridge mechanisms;

[0007] The at least two doctor blade cartridge mechanisms are arranged at intervals along the length direction of the frame.

[0008] The position between two doctor blade cartridge mechanisms is the blank area of the separator film. Since the areas to be coated are coated by corresponding doctor blade cartridge mechanisms respectively, during coating, the slurry will not be scraped onto the blank area but is controlled at the position where the doctor blade cartridge mechanism is located. Whether it is edge coating or zebra coating of the separator film, the problem of contamination of the blank area of the separator film can be effectively overcome.

[0009] In addition, the multi-chamber cartridge mechanism provided by the embodiments of this application may further have the following additional technical features:

[0010] In an alternative embodiment of this application, the frame includes a fixing mechanism, the fixing mechanism is provided with an adjusting part, the doctor blade cartridge mechanism is assembled on the adjusting part, and the adjusting part can adjust the horizontal distance between two adjacent doctor blade cartridge mechanisms.

[0011] By designing the adjusting part, the position of the doctor blade cartridge mechanism can be adjusted according to the width and position of the blank area to be left, so as to meet the coating requirements.

[0012] In an alternative embodiment of the present application, the frame includes a parallelism adjustment mechanism, which is connected to the fixing mechanism. The parallelism adjustment mechanism is used to adjust the parallelism of the blade cartridge mechanism relative to the plate cylinder.

[0013] The parallelism adjustment mechanism can change the position of the fixing mechanism in the vertical direction, thereby driving the blade cartridge mechanism, so that the parallelism and cooperation degree between the blade cartridge mechanism and the plate cylinder can be more accurate.

[0014] In an alternative embodiment of the present application, the blade cartridge mechanism includes a mounting frame, a cartridge cavity, an end face plugging block, and a blade mechanism. The mounting frame is connected to the frame. The cartridge cavity is arranged on the mounting frame. The blade mechanisms are arranged on opposite sides of the open end of the cartridge cavity. The end face plugging block is arranged in the cartridge cavity and can prevent the slurry from overflowing from the edge of the open end.

[0015] The cooperation between the cartridge cavity and the end face plugging block can prevent the slurry from overflowing from both sides of the position where the blade cartridge mechanism is located, ensuring that the blade mechanism can normally cooperate with the plate cylinder to complete the coating, and ensuring that the blank area of the coated isolation film has no slurry contamination.

[0016] In an alternative embodiment of the present application, the blade mechanism includes a blade and a blade pressing plate. The blade is connected to the cartridge cavity through the blade pressing plate.

[0017] The blade pressing plate can play a role in fixing the blade. It not only enables the blade to work normally, but also can fix the blade at a suitable angle, making the cooperation angle with the plate cylinder more reasonable and reducing the scraping force.

[0018] In an alternative embodiment of the present application, the blade pressing plate is rotatably connected to the cartridge cavity.

[0019] Since the blade pressing plate and the mounting frame are rotatably connected, by rotating the blade pressing plate, the angle of the blade can be changed, which is more conducive to maintaining a suitable cooperation position between the blade and the plate cylinder, improving the service life of the blade, and also improving the service life of the plate cylinder to a certain extent.

[0020] In an alternative embodiment of the present application, the frame includes an adjustment part, which is an elongated hole. The length direction of the elongated hole is the same as the length direction of the frame. The mounting frame cooperates with the elongated hole and its position in the length direction of the elongated hole is adjustable.

[0021] The mounting frame can move along the length direction of the elongated hole. When the position of the mounting frame needs to be adjusted, the positioning process in the height direction of the fixing mechanism can be omitted. Only the position of the mounting frame needs to be adjusted so that the distance between two adjacent blade cartridge mechanisms meets the requirement of the width of the blank area to be left.

[0022] In an alternative embodiment of the present application, a Teflon layer is provided on the inner wall of the cartridge cavity.

[0023] The Teflon layer can improve the smoothness of the inner wall, enabling the slurry to flow smoothly.

[0024] In an alternative embodiment of the present application, the number of the doctor blade cartridge mechanisms is two. One of the doctor blade cartridge mechanisms is disposed on one side in the length direction of the frame, and the other doctor blade cartridge mechanism is disposed on the opposite side in the length direction of the frame.

[0025] The two doctor blade cartridge mechanisms are respectively disposed on opposite sides of the frame, so that when the separator film is edge-coated, the uncoated area in the middle can remain clean and not be contaminated by the slurry.

[0026] An embodiment of the present application provides a gravure coating system, including a feeding system, a printing cylinder, and the multi-cavity cartridge mechanism described in any one of the above. The feeding system is used to supply materials to the doctor blade cartridge mechanism. The printing cylinder is disposed near the doctor blade cartridge mechanism, and the tip of the doctor blade of the doctor blade cartridge mechanism abuts against the roller surface of the printing cylinder.

[0027] By using the multi-cavity cartridge mechanism in the gravure coating system, the doctor blade cartridge mechanism can be not provided in the area that does not need to be coated, so that there is no friction between the doctor blade of the doctor blade cartridge mechanism and the printing cylinder in the blank area, which not only improves the service life of the printing cylinder, reduces the usage amount of the doctor blade, but also eliminates the risk of slurry leakage in the area without the doctor blade cartridge mechanism, thus ensuring the product quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required to be used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present application, and thus should not be regarded as limiting the scope. For those of ordinary skill in the art, other related drawings can be obtained based on these drawings without creative efforts.

[0029] Figure 1 Schematic diagram of the multi-cavity cartridge mechanism provided by the embodiment of the present application;

[0030] Figure 2 Front view of the doctor blade cartridge mechanism;

[0031] Figure 3 For Figure 2 Side view;

[0032] Figure 4 Schematic diagram of the long hole of the fixing mechanism;

[0033] Figure 5 Diagram of the slurry movement process.

[0034] Icons: 100 - multi - cavity cartridge mechanism; 10 - frame; 11 - fixing mechanism; 112 - long hole; 12 - parallelism adjustment mechanism; 20 - scraper box mechanism; 21 - mounting bracket; 211 - mounting adjustment block; 22 - cartridge cavity; 202 - open end; 221 - feed inlet; 222 - return material port; 23 - end face plugging block; 24 - scraper mechanism; 241 - scraper; 242 - scraper pressure plate; 200 - plate roller; 310 - feeding pump; 320 - slurry tank. Detailed implementation manners

[0035] To make the objectives, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are some, but not all, of the embodiments of the present application. Usually, the components of the embodiments of the present application described and illustrated in the accompanying drawings here can be arranged and designed in various different configurations.

[0036] Therefore, the following detailed description of the embodiments of the present application provided in the accompanying drawings is not intended to limit the scope of the present application claimed, but merely represents the selected embodiments of the present application. All other embodiments obtained by those of ordinary skill in the art based on the embodiments in the present application without creative efforts fall within the scope of protection of the present application.

[0037] It should be noted that: similar reference numerals and letters denote similar items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

[0038] In the description of the present application, it should be noted that the orientation or positional relationship indicated by terms such as "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship in which the product is usually placed during use. It is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present application. In addition, terms such as "first", "second", etc. are only used for descriptive distinction and cannot be understood as indicating or implying relative importance.

[0039] In the description of the present application, it should also be noted that unless otherwise clearly specified and limited, the terms "set", "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific situations.

[0040] Embodiment

[0041] Please refer to Figures 1 to 3 , an embodiment of the present application provides a multi-cavity cartridge mechanism 100, including: a frame 10 and at least two blade cartridge mechanisms 20;

[0042] The at least two blade cartridge mechanisms 20 are arranged at intervals along the length direction of the frame 10.

[0043] Specifically, as Figure 1 shown, in this embodiment, the number of the blade cartridge mechanisms 20 is two. One of the blade cartridge mechanisms 20 is arranged on one side in the length direction of the frame 10, and the other blade cartridge mechanism 20 is arranged on the opposite side in the length direction of the frame 10. It should be noted that Figure 1 the plate roller 200 is also shown for reference, and Figure 1 only a part of the cooperation between one plate roller 200 and the blade cartridge mechanism 20 is shown, and the non-cooperating parts in the middle are not shown.

[0044] The two blade cartridge mechanisms 20 are respectively arranged on the opposite sides of the frame 10, so that when the separator film is edge-coated, the area in the middle that does not need to be coated can be kept clean and not contaminated by the slurry.

[0045] That is, the position between the two blade cartridge mechanisms 20 is the blank area of the separator film. Since the areas to be coated are respectively coated by the corresponding blade cartridge mechanisms 20, when coating, the slurry will not be scraped onto the blank area, but is controlled at the position where the blade cartridge mechanism 20 is located. Whether it is edge-coating or zebra-coating of the separator film, the problem of contamination of the blank area of the separator film can be effectively overcome.

[0046] It can be understood that only a schematic diagram of two blade cartridge mechanisms 20 is shown in this embodiment, which only represents an optional setting method. When zebra-coating is required, more blade cartridge mechanisms 20 can be further added.

[0047] Please combine with Figure 1 , specifically, the frame 10 includes a fixing mechanism 11, the fixing mechanism 11 is provided with an adjusting part, the blade cartridge mechanism 20 is assembled on the adjusting part, and the adjusting part can adjust the horizontal distance between two adjacent blade cartridge mechanisms 20. By designing the adjusting part, the position of the blade cartridge mechanism 20 can be adjusted according to the width and position of the blank area to be left, so as to meet the coating requirements.

[0048] Optionally, please combine with Figure 4, the fixing mechanism 11 is provided with a long hole 112 as an adjusting part. The length direction of the long hole 112 is the same as the length direction of the frame 10. The mounting bracket 21 (mentioned below) is matched with the long hole 112 and its position in the length direction of the long hole 112 is adjustable. The mounting bracket 21 can move along the length direction of the long hole 112. When the position of the mounting bracket 21 needs to be adjusted, the positioning process in the height direction of the fixing mechanism 11 can be omitted, and only the position of the mounting bracket 21 needs to be adjusted so that the distance between two adjacent squeegee cartridge mechanisms 20 meets the requirement of the width of the blank area to be left. Optionally, the mounting bracket 21 and the long slot are fixed by screws. Another option is that a plurality of mounting holes can be provided at intervals on the fixing mechanism 11 as an adjusting part, and then the squeegee cartridge mechanism 20 can be installed at different mounting holes according to the spacing requirements.

[0049] Furthermore, the upper part of the mounting bracket 21 is a mounting adjustment block 211. The side profile of the mounting bracket 21 is L-shaped. Each mounting adjustment block 211 can be moved up and down relative to the fixing mechanism 11 by the cooperation of two setscrews, so as to adjust the height level of the cartridge cavity 22 (mentioned below). Ensure that the cartridge cavity 22 fits better with the plate cylinder 200, and prevent excessive misalignment between the opening 202 of the cartridge cavity 22 and the plate cylinder 200 due to height problems, resulting in excessive overflow and waste of the slurry. Among them, the use of the setscrew can refer to the use of the setscrew in general technology, which will not be elaborated here.

[0050] Please refer to Figure 1 for the perspective view. It should be noted that this only indicates the perspective view to provide a position reference. Optionally, a long hole (not numbered because its position is different from that of the long hole 112 in this embodiment) can also be set on Figure 1 the top of the fixing mechanism 11 in the perspective view. The end of the mounting adjustment block 211 extends downward in the vertical direction to form a mounting part, so that the side profile of the mounting bracket 21 with an L-shaped side profile becomes U-shaped. The mounting part is directly arranged in the long hole, and the height position of the entire mounting bracket 21 relative to the fixing mechanism 11 can be adjusted by controlling the depth of insertion of the mounting part into the long hole. In addition, the mounting part can also slide along the length direction of the long hole, so that the entire mounting bracket 21 can slide relative to the long hole, realizing the movement of the entire squeegee cartridge mechanism 20.

[0051] Specifically, it can be in Figure 1A long hole is provided at the top of the fixing mechanism 11 from a perspective. A chute is opened on the back of the fixing mechanism 11, and then a plurality of adjusting holes are spaced apart in the vertical direction of the mounting portion. The mounting adjusting block 211 is inserted into the long hole, and then a bolt is inserted from the chute on the back and passed through the adjusting hole, and then a nut is used for cooperation to position the mounting adjusting block 211. When it is necessary to change the horizontal position of the blade box mechanism 20, the nut is loosened, and the entire blade box mechanism 20 is directly moved along the long hole. When it is necessary to adjust the height, the bolt and the nut are loosened, and the bolt is inserted into the adjusting hole at the required height.

[0052] In order to adjust the height more accurately, the parallelism adjusting mechanism 12 in the following text can be further used to adjust the left height or the right height of the fixing mechanism 11.

[0053] It should be noted that the above adjustment methods are only simple examples, and those skilled in the art can set other types of horizontal position and height adjustment structures according to needs, so that the blade box mechanism 20 can be adjusted to a reasonable position with another blade box mechanism 20, which can not only meet the coating requirements but also prevent the width of the blank area from not meeting the requirements.

[0054] Of course, whether it is horizontal adjustment or height adjustment, the blade box mechanism 20 needs to be fixed after moving in place to prevent it from moving during the coating process and affecting the product quality.

[0055] Specifically, the frame 10 includes a parallelism adjusting mechanism 12. The parallelism adjusting mechanism 12 is connected to the fixing mechanism 11, and the parallelism adjusting mechanism 12 is used to adjust the height and horizontal position of the fixing mechanism 11. The parallelism adjusting mechanism 12 can drive the blade box mechanism 20 by changing the position of the fixing mechanism 11 in the vertical and horizontal directions, so that the parallelism and cooperation degree of the blade box mechanism 20 with the plate roller 200 are more accurate. The parallelism adjusting mechanism 12 can refer to the general mechanism used for adjusting the parallelism of the knife box and the roller, which will not be elaborated here.

[0056] Please refer to Figure 2 and Figure 3 , specifically, in this embodiment, the blade box mechanism 20 includes a mounting frame 21, a material box cavity 22, an end face plugging block 23, and a blade mechanism 24. The mounting frame 21 is connected to the frame 10. The material box cavity 22 is arranged on the mounting frame 21. The blade mechanism 24 is arranged on the opposite sides of the open end 202 of the material box cavity 22. The end face plugging block 23 is arranged in the material box cavity 22 and can prevent the slurry from overflowing from the edge of the open end 202.

[0057] As Figure 2 shown, the blade mechanism 24 includes a blade 241( Figure 3The doctor blade 241) and the doctor blade pressing plate 242 are not shown. The doctor blade 241 is connected to the cartridge cavity 22 through the doctor blade pressing plate 242. The doctor blade pressing plate 242 can play a role in fixing the doctor blade 241, not only enabling the doctor blade 241 to work properly, but also fixing the doctor blade 241 at a suitable angle, making the cooperation angle with the plate cylinder 200 more reasonable and reducing the scraping force. Optionally, the doctor blade pressing plate 242 is rotatably connected to the cartridge cavity 22. Since the doctor blade pressing plate 242 and the cartridge cavity 22 are rotatably connected, the angle of the doctor blade 241 can be changed by rotating the doctor blade pressing plate 242 according to the diameter of the plate cylinder 200, which is more conducive to maintaining a suitable cooperation position between the doctor blade 241 and the plate cylinder 200, preventing violent scraping against each other, thereby increasing the service life of the doctor blade 241 and also increasing the service life of the plate cylinder 200 to a certain extent. In addition, the cooperation between the cartridge cavity 22 and the end face plugging block 23 can prevent the slurry from overflowing from both sides of the position where the doctor blade cartridge mechanism 20 is located, ensuring that the doctor blade mechanism 24 can cooperate with the plate cylinder 200 normally to complete the coating and ensuring that the blank area of the coated isolation film is free of slurry contamination.

[0058] It should be noted that the doctor blade pressing plate 242 is rotatably connected to the cartridge cavity 22, but when the position of the doctor blade 241 is adjusted in place, the doctor blade pressing plate 242 needs to maintain a stable position relative to the cartridge cavity 22 to avoid the displacement of the position of the doctor blade 241 and affect the coating.

[0059] Certainly, a torsion spring can be considered to be provided on the rotating shaft of the doctor blade pressing plate 242, so that the doctor blade pressing plate 242 has a tendency to twist towards the plate cylinder 200. When the doctor blade 241 cooperates with the plate cylinder 200, the twisting tendency of the doctor blade pressing plate 242 enables the doctor blade 241 to swing to some extent along with the rotation of the plate cylinder 200 on the basis of extruding the diaphragm, reducing the scraping force on the plate cylinder 200 and the diaphragm, and avoiding large wear on the diaphragm or the plate cylinder 200 caused by rigid contact.

[0060] Specifically, in this embodiment, a Teflon layer is provided on the inner wall of the cartridge cavity 22. The Teflon layer can improve the smoothness of the inner wall and make the slurry flow smoothly. This is beneficial to scraping out a uniform coating layer on the diaphragm. The cartridge cavity 22 is provided with a feed inlet 221 and a return inlet 222, and the return inlet 222 is above the feed inlet 221.

[0061] Based on the above multi-cavity cartridge mechanism 100, an embodiment of the present application provides an intaglio coating system, including a feeding system, a plate cylinder 200, and a multi-cavity cartridge mechanism 100. The feeding system is used to supply materials to the doctor blade cartridge mechanism 20. The plate cylinder 200 is arranged near the doctor blade cartridge mechanism 20, and the tip of the doctor blade 241 of the doctor blade cartridge mechanism 20 abuts against the roller surface of the plate cylinder 200.

[0062] Specifically, the gravure coating system can avoid arranging the doctor blade box mechanism 20 in the area where coating is not required by using the multi-chamber cartridge mechanism 100. This ensures that there is no friction between the doctor blade 241 of the doctor blade box mechanism 20 and the plate cylinder 200 in the blank area, which not only extends the service life of the plate cylinder 200, reduces the consumption of the doctor blade 241, but also eliminates the risk of slurry leakage in the area without the doctor blade box mechanism 20, thus guaranteeing the product quality.

[0063] Among them, the plate cylinder 200 can also be designed as an anilox roller with different patterns in different parts. For example, the patterns corresponding to each doctor blade box mechanism 20 can be different to meet different coating requirements. It should be understood that this is only an example here and should not be restrictively understood as the patterns must be different.

[0064] Please refer to Figure 5 , taking the multi-chamber cartridge mechanism 100 with two doctor blade box mechanisms 20 as an example, the feeding process of the feeding system is as follows:

[0065] The feeding system includes a feeding pump 310 and a slurry tank 320. The feeding pump 310 extracts the slurry from the slurry tank 320 and transports it through the feeding pipeline to the feed port 221 and then into the cartridge cavity 22.

[0066] When the slurry in the cartridge cavity 22 reaches the return port 222, the slurry will overflow from the return port 222, converge through a pipeline such as a hose, and then enter the slurry tank 320.

[0067] The principle of this embodiment is:

[0068] Taking the case of two doctor blade box mechanisms 20 as an example, compared with the cartridge in the general technology, the doctor blade box mechanism 20 has a smaller width. This allows the doctor blade box mechanism 20 to be arranged only at the positions that need to be coated while keeping the size of the diaphragm unchanged. For the blank area that does not need to be coated, the unnecessary cartridge structure can be directly omitted, thus directly eliminating the possibility that the blank area that needs to be left blank is contaminated by the slurry in the cartridge.

[0069] And since the plate cylinder 200 corresponding to the blank area does not need to contact the doctor blade 241, it can have a longer service life, which also saves the consumption of the unnecessary doctor blade 241. In addition, since there is no slurry contamination in the blank area, the frictional resistance between the diaphragm and the plate cylinder 200 is also smaller, avoiding the increase in the contact angle between the diaphragm and the plate cylinder 200 caused by the resistance and thus preventing the diaphragm from being stretched.

[0070] When the positions of the areas that need to be left blank are different, for example, when changing from edge coating to zebra coating, the scraper box mechanism 20 can be moved along the long hole to adjust the spacing between adjacent scraper box mechanisms 20 so as to change the width of the blank area. Of course, for zebra coating, the number of scraper box mechanisms 20 should be set according to specific coating requirements, and it should not be understood that only the two scraper box mechanisms 20 mentioned in the above example must be used restrictively.

[0071] In addition, when cooperating with the plate roller 200, the position of the scraper box mechanism 20 relative to the plate roller 200 should be adjusted by installing the adjusting block 211 and the parallelism adjusting mechanism 12, so that the parallelism and cooperation degree between the material box cavity 22 and the plate roller 200 are more accurate, avoiding an increase in the contact angle due to an increase in the resistance between the diaphragm and the plate roller 200 caused by insufficient alignment, and further avoiding the risk of stretching during the diaphragm conveying process. This helps to ensure the product quality and also avoids waste and equipment fouling caused by the leakage of the slurry in the vertical direction.

[0072] In summary, the multi-cavity material box mechanism 100 of the present application can directly eliminate the material box structure at the positions that need to be left blank on the diaphragm by arranging two or more scraper box mechanisms 20 on the frame 10, effectively solving the problem of slurry leakage into the blank area. When combined with the plate roller 200 and the feeding system to form an intaglio coating system, it can reduce the wear of the plate roller 200 and the scraper 241 of the scraper box mechanism 20 itself, improve the service life, and ensure the product quality of the coated diaphragm.

[0073] The above are only the preferred embodiments of the present application and are not used to limit the present application. For those skilled in the art, the present application can have various changes and modifications. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A multi-cavity cartridge mechanism, characterized in that, it includes: a frame and two scraper cartridge mechanisms; the two scraper cartridge mechanisms are arranged at intervals along the length direction of the frame; the frame includes a fixing mechanism, the fixing mechanism is provided with an adjusting part, the scraper cartridge mechanism is assembled on the adjusting part, and the adjusting part can adjust the horizontal distance between two adjacent scraper cartridge mechanisms; the scraper cartridge mechanism includes a mounting bracket, a cartridge cavity, an end face plugging block, and a scraper mechanism. The mounting bracket is connected to the frame, the cartridge cavity is arranged on the mounting bracket, the scraper mechanism is arranged on opposite sides of the open end of the cartridge cavity, and the end face plugging block is arranged in the cartridge cavity and can prevent the slurry from overflowing from the edge of the open end; one of the scraper cartridge mechanisms is arranged on one side in the length direction of the frame, and the other scraper cartridge mechanism is arranged on the opposite side in the length direction of the frame.

2. The multi-cavity cartridge mechanism according to claim 1, characterized in that, the frame includes a parallelism adjusting mechanism, the parallelism adjusting mechanism is connected to the fixing mechanism, and the parallelism adjusting mechanism is used to adjust the parallelism of the scraper cartridge mechanism relative to the plate roller.

3. The multi-cavity cartridge mechanism according to claim 1, characterized in that, the scraper mechanism includes a scraper and a scraper pressing plate, and the scraper is connected to the cartridge cavity through the scraper pressing plate.

4. The multi-cavity cartridge mechanism according to claim 3, characterized in that, the scraper pressing plate is rotatably connected to the cartridge cavity.

5. The multi-cavity cartridge mechanism according to claim 1, characterized in that, the frame includes an adjusting part, the adjusting part is a long hole, the length direction of the long hole is the same as the length direction of the frame, and the mounting bracket is matched with the long hole and its position in the length direction of the long hole is adjustable.

6. The multi-cavity cartridge mechanism according to claim 1, characterized in that, a Teflon layer is provided on the inner wall of the cartridge cavity.

7. An intaglio coating system, characterized in that, it includes a feeding system, a plate roller, and the multi-cavity cartridge mechanism according to any one of claims 1-6. The feeding system is used to supply materials to the scraper cartridge mechanism, the plate roller is arranged near the scraper cartridge mechanism, and the tip of the scraper of the scraper cartridge mechanism abuts against the roller surface of the plate roller.

Images