Coating valve, coating machine and coating equipment

Abstract

The utility model belongs to the technical field of coating machines, and discloses a coating valve, a coating machine and coating equipment. The coating valve comprises a material supply valve mechanism, a material supply driving mechanism, a material return valve mechanism and a material return driving mechanism. And the feeding valve mechanism is arranged between the coating die head and the slurry storage device. The feeding driving mechanism and the feeding valve mechanism are arranged side by side and are in transmission connection, and the feeding valve mechanism can be driven by the linear motion of the feeding driving mechanism to move so as to be opened or closed. And the material return valve mechanism is arranged between the material supply valve mechanism and the material return device. The material return driving mechanism and the material return valve mechanism are arranged side by side and are in transmission connection, and the material return valve mechanism can be driven by the linear motion of the material return driving mechanism to move so as to be opened or closed. The coating valve can simplify the driving process and improve the response speed.

Description

Technical Field

[0001] This utility model relates to the field of coating machine technology, and in particular to a coating valve, a coating machine and coating equipment. Background Technology

[0002] Electrode coating is a key process in lithium battery manufacturing. The coating process mainly involves uniformly applying a well-stirred slurry onto the current collector and then drying it to remove the organic solvents. This process has a significant impact on the battery's capacity, internal resistance, cycle life, and safety.

[0003] In existing coating production processes, a lead screw is generally used to drive the movement of a valve stem, thereby controlling the opening and closing of the slurry channel connected to the coating die head.

[0004] However, when the viscosity of the slurry is high, the valve stem's extension and retraction response speed slows down, and the power during movement is insufficient. This results in the coating width not being accurately controlled during gap coating, ultimately leading to a decline in product quality.

[0005] Therefore, there is an urgent need for a coating valve, coating machine, and coating equipment to solve the above problems. Utility Model Content

[0006] According to one aspect of the present invention, the object is to provide a coating valve that simplifies the driving process and improves the response speed.

[0007] To achieve this objective, the present invention adopts the following technical solution:

[0008] Coating valve, including:

[0009] The feeding valve mechanism is located between the coating die head and the slurry storage device;

[0010] A feeding drive mechanism is arranged side by side with and connected to the feeding valve mechanism. The feeding valve mechanism can move under the linear motion of the feeding drive mechanism to open or close.

[0011] A return valve mechanism is disposed between the feed valve mechanism and the return device;

[0012] The return material drive mechanism is arranged side by side with the return material valve mechanism and is connected to it in a transmission manner. The return material valve mechanism can move under the linear motion of the return material drive mechanism to open or close.

[0013] As a preferred embodiment of the coating valve provided by this utility model, the feeding drive mechanism includes a feeding drive part and a feeding output part, wherein the feeding drive part can drive the feeding output part to move along a first direction; the feeding valve mechanism includes a feeding valve rod and a feeding valve body, wherein the feeding valve rod is movably disposed in the feeding valve body along the first direction, and can move to open or close the feeding channel in the feeding valve body; the feeding valve rod and the feeding output part are arranged side by side and connected to each other; and / or,

[0014] The material return drive mechanism includes a material return drive unit and a material return output unit. The material return drive unit can drive the material return output unit to move along a first direction. The material return valve mechanism includes a material return valve rod and a material return valve body. The material return valve rod is movably disposed in the material return valve body along the first direction and can move to open or close the material return channel in the material return valve body. The material return valve rod and the material return output unit are arranged side by side and connected to each other.

[0015] As a preferred embodiment of the coating valve provided by this utility model, the feeding valve mechanism further includes a feeding connecting block and a feeding connecting rod. The feeding valve rod is connected to the feeding connecting block. The feeding connecting block and the feeding output section are arranged side by side and spaced apart from each other, and are connected to each other through the feeding connecting rod; and / or,

[0016] The return valve mechanism further includes a return connecting block and a return connecting rod. The return valve rod is connected to the return connecting block. The return connecting block and the return output section are arranged side by side and spaced apart from each other, and are connected to each other through the return connecting rod.

[0017] As a preferred embodiment of the coating valve provided by this utility model, one end of the feed valve stem extending from the feed valve body is provided with a feed connecting ball head, the feed connecting block has a feed connecting groove, and the feed connecting ball head is movably embedded in the feed connecting groove; and / or,

[0018] The end of the return valve stem extending out of the return valve body is provided with a return connecting ball head, and the return connecting block is provided with a return connecting groove, and the return connecting ball head is movably embedded in the return connecting groove.

[0019] As a preferred embodiment of the coating valve provided by this utility model, the feeding connection groove extends along a second direction, and the feeding connection ball head can be adjusted to be embedded in the feeding connection groove along the second direction; the second direction is set at an angle to the first direction; and / or,

[0020] The return material connection groove extends along the second direction, and the return material connection ball head can be adjusted in the groove along the second direction to be embedded in the same position.

[0021] As a preferred embodiment of the coating valve provided by this utility model, the feeding valve mechanism further includes a feeding mounting base and a feeding guide rail. The feeding mounting base is fixed relative to the feeding valve body, the feeding guide rail is disposed on the feeding mounting base along a first direction, and the feeding connecting block is slidably connected to the feeding guide rail; and / or,

[0022] The return valve mechanism further includes a return mounting base and a return guide rail. The return mounting base is fixed relative to the return valve body. The return guide rail is disposed on the return mounting base along a first direction. The return connecting block is slidably connected to the return guide rail.

[0023] As a preferred embodiment of the coating valve provided by this utility model, the feeding drive mechanism further includes a feeding sensing structure, which is connected to the feeding output section and configured to sense the movement limit position of the feeding output section.

[0024] The material return drive mechanism also includes a material return sensing structure, which is connected to the material return output section and configured to sense the extreme position of the material return output section.

[0025] As a preferred embodiment of the coating valve provided by this utility model, the coating valve further includes a connecting pipe, which is connected between the feeding valve mechanism and the return valve mechanism. When the feeding valve mechanism is closed and the return valve mechanism is open, the slurry in the connecting pipe can flow back to the return device through the return valve mechanism.

[0026] According to another aspect of the present invention, the object is to provide a coating machine, the coating machine including a coating die head, a slurry storage device and a material return device, and further including a coating valve as described in any of the above embodiments.

[0027] According to another aspect of the present invention, the object is to provide a coating device, the coating device including an unwinding device, a drying device and a rewinding device, and further including a coating machine as described above, wherein the unwinding device, the drying device and the rewinding device are arranged sequentially, and the coating machine is arranged between the unwinding device and the drying device.

[0028] The beneficial effects of this utility model are:

[0029] The coating valve provided by this utility model includes a feeding valve mechanism, a feeding drive mechanism, a return valve mechanism, and a return drive mechanism. The feeding valve mechanism is disposed between the coating die head and the slurry storage device. The return valve mechanism is disposed between the feeding valve mechanism and the return device. The feeding valve mechanism enables control of the feeding process to the coating die head, and the return valve mechanism enables control of slurry recovery. The feeding drive mechanism is arranged side-by-side and driven by the feeding valve mechanism, and the feeding valve mechanism can move to open or close under the linear motion of the feeding drive mechanism. Similarly, the return drive mechanism is arranged side-by-side and driven by the return valve mechanism, and the return valve mechanism can move to open or close under the linear motion of the return drive mechanism. By arranging the feeding drive mechanism and the feeding valve mechanism side by side, and the return drive mechanism and the return valve mechanism side by side, the axial space occupied by the coating valve can be reduced. Compared with the prior art, which uses the rotation of components such as lead screws to control the feeding valve mechanism and the return valve mechanism, this application can use the linear motion of the feeding drive mechanism and the linear motion of the return drive mechanism to control the feeding valve mechanism and the return valve mechanism, simplifying the driving process and improving the response speed. Attached Figure Description

[0030] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments of this utility model will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the content of the embodiments of this utility model and these drawings without creative effort.

[0031] Figure 1 This is a schematic diagram of the coating valve provided in an embodiment of the present invention;

[0032] Figure 2 yes Figure 1 A magnified view of a section marked A in the middle;

[0033] Figure 3 yes Figure 1 A magnified view of the structure marked B in the middle.

[0034] In the picture:

[0035] 100. Material feeding drive mechanism; 110. Material feeding output unit;

[0036] 200. Material return drive mechanism; 210. Material return output unit;

[0037] 310. Feed valve stem; 311. Feed connecting ball head; 320. Feed connecting block; 321. Feed connecting groove; 330. Feed connecting rod; 340. Feed mounting base; 350. Feed guide rail; 360. Feed valve body;

[0038] 410. Return valve stem; 411. Return connecting ball head; 420. Return connecting block; 421. Return connecting groove; 430. Return connecting rod; 440. Return mounting seat; 450. Return guide rail; 460. Return valve body;

[0039] 500. Connecting pipes;

[0040] 600. Feed pipe;

[0041] 700. Die head feed inlet. Detailed Implementation

[0042] The technical solution of this utility model will be further described below with reference to the accompanying drawings and specific embodiments.

[0043] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0044] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0045] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0046] In the description of this utility model, it should be noted that the terms "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this utility model is in use. They are used only for the convenience of describing this utility model and for 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 limitations on this utility model. Furthermore, the terms "first," "second," and "third," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0047] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "connect," and "fix" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0048] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0049] In this embodiment, the term "and / or" is merely a description of the relationship between associated objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, or B existing alone. Additionally, in this invention, the character " / " generally indicates that the preceding and following associated objects have an "or" relationship.

[0050] The embodiments of this utility model 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 this utility model, and should not be construed as limiting this utility model.

[0051] This embodiment provides a coating valve, a coating machine, and coating equipment.

[0052] The coating machine includes a coating die, a slurry storage device, and a return device, as well as a coating valve provided in this embodiment. The coating valve can control the flow and return of the slurry.

[0053] The coating equipment includes an unwinding device, a drying device, and a rewinding device, as well as the aforementioned coating machine. The unwinding device, the drying device, and the rewinding device are arranged sequentially, and the coating machine is located between the unwinding device and the drying device to achieve coating of the electrode sheet.

[0054] Figure 1 A schematic diagram of the coating valve provided in an embodiment of this utility model is shown. (Refer to...) Figure 1 The coating valve provided in this embodiment specifically includes a feeding valve mechanism, a return valve mechanism, a feeding drive mechanism 100, and a return drive mechanism 200.

[0055] A feed valve mechanism is located between the coating die and the slurry storage device. A feed drive mechanism 100 is arranged side-by-side and driven by the feed valve mechanism, allowing the feed valve mechanism to move to open or close under the linear motion of the feed drive mechanism 100. A return valve mechanism is located between the feed valve mechanism and the return device. A return drive mechanism 200 is arranged side-by-side and driven by the return valve mechanism, allowing the return valve mechanism to move to open or close under the linear motion of the return drive mechanism 200.

[0056] In other words, the feeding valve mechanism described above enables control of the feeding process to the coating die head, while the return valve mechanism enables control of slurry recovery. By arranging the feeding drive mechanism 100 and the feeding valve mechanism side by side, and the return drive mechanism 200 and the return valve mechanism side by side, the axial space occupied by the coating valve can be reduced. Compared to the prior art that uses the rotation of components such as lead screws to control the feeding valve mechanism and the return valve mechanism, this application uses the linear motion of the feeding drive mechanism 100 and the linear motion of the return drive mechanism 200 to control the feeding valve mechanism and the return valve mechanism, simplifying the driving process and improving the response speed.

[0057] Specifically, the coating valve also includes a feed pipe, one end of which is provided with a feed tube 600, which is connected to a slurry storage device. The return valve mechanism and the feed valve mechanism are arranged sequentially along the feed direction of the feed tube 600. The feed valve mechanism is connected to the coating die head through the die head feed port 700.

[0058] More specifically, the coating valve also includes a connecting pipe 500, which connects the feed valve mechanism and the return valve mechanism. When the feed valve mechanism is closed and the return valve mechanism is open, the slurry in the connecting pipe 500 can flow back to the return device through the return valve mechanism. In this embodiment, the connecting pipe 500 may specifically be a portion of the feed pipe located between the return valve mechanism and the feed valve mechanism.

[0059] Continue to refer to Figure 1 The feeding valve mechanism includes a feeding valve stem 310 and a feeding valve body 360. The feeding valve stem 310 is movably disposed in the feeding valve body 360 along a first direction. A first plug (not shown) is provided at the end of the feeding valve stem 310. The feeding valve stem 310 can move to control the position of the first plug, thereby opening or closing the feeding channel in the feeding valve body 360. Similarly, the return valve mechanism includes a return valve stem 410 and a return valve body 460.

[0060] Similarly, the return valve stem 410 is movably disposed in the return valve body 460 along the first direction. A second plug (not shown) is provided at the end of the return valve stem 410. The return valve stem 410 can move to control the position of the second plug, thereby opening or closing the return channel in the return valve body 460. It should be noted that in this embodiment, the return channel, connecting pipe 500, and feed pipe 600 in the return valve body 460 can form a three-way structure. The return channel in the return valve body 460 can be opened and closed by the action of the return valve stem 410, but the return valve stem 410 does not affect the flow of slurry between the connecting pipe 500 and the feed pipe 600.

[0061] Figure 2 Show Figure 1 A magnified view of a section marked A in the middle; Figure 3 Show Figure 1 A magnified view of the structure marked B in the middle section. (Refer to...) Figures 1-3 The feeding drive mechanism 100 includes a feeding drive unit and a feeding output unit 110. The feeding drive unit is capable of driving the feeding output unit 110 to move along a first direction. The feeding valve stem 310 and the feeding output unit 110 are arranged side by side and connected to each other. Specifically, the feeding drive unit can be a linear drive motor from the prior art, and the feeding output unit 110 can be a slider structure that can move along the first direction and is connected to the linear drive motor.

[0062] Similarly, the return material drive mechanism 200 includes a return material drive unit and a return material output unit 210. The return material drive unit is capable of driving the return material output unit 210 to move along a first direction. The return material valve stem 410 and the return material output unit 210 are arranged side by side and connected to each other. Specifically, the return material drive unit can be a linear drive motor from the prior art, and the return material output unit 210 can be a slider structure that is capable of moving along the first direction and connected to the linear drive motor.

[0063] Specifically, the feeding valve mechanism further includes a feeding connecting block 320 and a feeding connecting rod 330. The end of the feeding valve rod 310 extending out of the feeding valve body 360 is connected to the feeding connecting block 320. The feeding connecting block 320 and the feeding output section 110 are arranged side by side and spaced apart, and are connected to each other through the feeding connecting rod 330. The feeding connecting rod 330 and the feeding connecting block 320 are arranged at an angle along a second direction. In this embodiment, the second direction is specifically perpendicular to the first direction. That is, the feeding connecting block 320, the feeding connecting rod 330, and the feeding output section 110 form an H-shaped structure.

[0064] Similarly, the return valve mechanism also includes a return connecting block 420 and a return connecting rod 430. The end of the return valve rod 410 extending out of the return valve body 460 is connected to the return connecting block 420. The return connecting block 420 and the return output section 210 are arranged side by side and spaced apart, and are connected to each other through the return connecting rod 430. The return connecting rod 430 and the return connecting block 420 are arranged at an angle along a second direction. That is, the return connecting block 420, the return connecting rod 430, and the return output section 210 form an H-shaped structure.

[0065] More specifically, the end of the feed valve stem 310 extending out of the feed valve body 360 is provided with a feed connecting ball head 311, and the feed connecting block 320 has a feed connecting groove 321, in which the feed connecting ball head 311 is movably embedded. This design improves the flexibility of the connection between the feed valve stem 310 and the feed connecting block 320, avoiding inconvenience caused by assembly errors in the feed connecting block 320 or the feed connecting rod 330, and even preventing jamming during the normal movement of the feed valve stem 310 in the first direction.

[0066] Similarly, the end of the return valve stem 410 extending out of the return valve body 460 is provided with a return connecting ball head 411, and the return connecting block 420 has a return connecting groove 421, in which the return connecting ball head 411 is movably embedded. This design improves the flexibility of the connection between the return valve stem 410 and the return connecting block 420, avoiding inconvenience caused by assembly errors in the return connecting block 420 or the return connecting rod 430, and even preventing jamming during the normal movement of the return valve stem 410 in the first direction.

[0067] More specifically, the feed connection groove 321 extends along the second direction, and the feed connection ball head 311 can be adjusted in position along the second direction within the feed connection groove 321. Through this arrangement, the connection position between the feed valve stem 310 and the feed connection block 320 can be adjusted in the second direction, improving the flexibility of their connection.

[0068] Similarly, the return material connection groove 421 extends along the second direction, and the return material connection ball head 411 can be adjusted in its embedded position along the second direction within the return material connection groove 421. Through the above arrangement, the connection position between the return material valve stem 410 and the return material connection block 420 can be adjusted in the second direction, improving the flexibility of their connection.

[0069] Continue to refer to Figures 1-3 The feeding valve mechanism further includes a feeding mounting base 340 and a feeding guide rail 350. The feeding mounting base 340 is fixed relative to the feeding valve body 360. The feeding guide rail 350 is disposed on the feeding mounting base 340 along a first direction. The feeding connecting block 320 is slidably connected to the feeding guide rail 350. In this embodiment, the feeding mounting base 340 is specifically L-shaped, including an integrally formed first connecting portion and a first guiding portion. The first connecting portion is fixedly connected to the bottom of the feeding valve body 360, and the first guiding portion extends in a direction away from the feeding valve body 360 and along the first direction. The end of the feeding valve stem 310 away from the first plug can pass through the first connecting portion, that is, the feeding connecting ball head 311 is located below the first connecting portion. The feeding guide rail 350 is disposed on the first guiding portion.

[0070] Similarly, the return valve mechanism also includes a return mounting base 440 and a return guide rail 450. The return mounting base 440 is fixed relative to the return valve body 460, and the return guide rail 450 is disposed on the return mounting base 440 along a first direction. The return connecting block 420 is slidably connected to the return guide rail 450. In this embodiment, the return mounting base 440 is specifically L-shaped, including an integrally formed second connecting portion and a second guiding portion. The second connecting portion is fixedly connected to the bottom of the return valve body 460, and the second guiding portion extends in a direction away from the return valve body 460 and along the first direction. The end of the return valve stem 410 away from the second plug can pass through the second connecting portion, that is, the return connecting ball head 411 is located below the second connecting portion. The return guide rail 450 is disposed on the second guiding portion.

[0071] Preferably, the feeding drive mechanism 100 further includes a feeding sensing structure connected to the feeding output section 110 and configured to sense the extreme movement positions of the feeding output section 110. Specifically, the feeding sensing structure is communicatively connected to the feeding movement controller of the feeding drive section, enabling the transmission of the position information of the feeding output section 110 to the feeding movement controller. The feeding movement controller can control the movement process of the feeding output section 110, preventing the feeding output section 110 from moving away from the feeding drive section.

[0072] Similarly, the material return drive mechanism 200 also includes a material return sensing structure connected to the material return output section 210 and configured to sense the extreme movement positions of the material return output section 210. Specifically, the material return sensing structure is communicatively connected to the material return movement controller of the material return drive section, enabling the transmission of the position information of the material return output section 210 to the material return movement controller. The material return movement controller can control the movement of the material return output section 210 to prevent it from moving away from the material return drive section.

[0073] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating the present utility model, and are not intended to limit the implementation of the present utility model. Those skilled in the art can make various obvious changes, readjustments, and substitutions without departing from the protection scope of this utility model. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. A coating valve, characterized in that, include: The feeding valve mechanism is located between the coating die head and the slurry storage device; The feeding drive mechanism (100) is arranged side by side with the feeding valve mechanism and is connected to it in a transmission manner. The feeding valve mechanism can move under the linear motion of the feeding drive mechanism (100) to open or close. A return valve mechanism is disposed between the feed valve mechanism and the return device; The return material drive mechanism (200) is arranged side by side with the return material valve mechanism and is connected to it in a transmission manner. The return material valve mechanism can move under the linear motion of the return material drive mechanism (200) to open or close.

2. The coating valve according to claim 1, characterized in that, The feeding drive mechanism (100) includes a feeding drive section and a feeding output section (110), wherein the feeding drive section is capable of driving the feeding output section (110) to move along a first direction; the feeding valve mechanism includes a feeding valve stem (310) and a feeding valve body (360), wherein the feeding valve stem (310) is movably disposed in the feeding valve body (360) along the first direction, and is movable to open or close the feeding channel in the feeding valve body (360); the feeding valve stem (310) and the feeding output section (110) are arranged side by side and connected to each other; and / or, The material return drive mechanism (200) includes a material return drive unit and a material return output unit (210). The material return drive unit can drive the material return output unit (210) to move along a first direction. The material return valve mechanism includes a material return valve stem (410) and a material return valve body (460). The material return valve stem (410) is movably disposed in the material return valve body (460) along the first direction and can move to open or close the material return channel in the material return valve body (460). The material return valve stem (410) and the material return output unit (210) are arranged side by side and connected to each other.

3. The coating valve according to claim 2, characterized in that, The feeding valve mechanism further includes a feeding connecting block (320) and a feeding connecting rod (330). The feeding valve rod (310) is connected to the feeding connecting block (320). The feeding connecting block (320) and the feeding output part (110) are arranged side by side and spaced apart, and are connected to each other through the feeding connecting rod (330); and / or, The return valve mechanism further includes a return connecting block (420) and a return connecting rod (430). The return valve rod (410) is connected to the return connecting block (420). The return connecting block (420) and the return output part (210) are arranged side by side and spaced apart, and are connected to each other through the return connecting rod (430).

4. The coating valve according to claim 3, characterized in that, The end of the feed valve stem (310) extending out of the feed valve body (360) is provided with a feed connection ball head (311), and the feed connection block (320) has a feed connection groove (321), in which the feed connection ball head (311) is movably embedded; and / or, The end of the return valve stem (410) extending out of the return valve body (460) is provided with a return connecting ball head (411), and the return connecting block (420) is provided with a return connecting groove (421). The return connecting ball head (411) is movably embedded in the return connecting groove (421).

5. The coating valve according to claim 4, characterized in that, The feeding connection groove (321) extends along a second direction, and the feeding connection ball head (311) can be adjusted in position along the second direction within the feeding connection groove (321); the second direction is angled to the first direction; and / or, The return material connection groove (421) extends along the second direction, and the return material connection ball head (411) can be adjusted in the second direction to be embedded in the return material connection groove (421).

6. The coating valve according to claim 3, characterized in that, The feeding valve mechanism further includes a feeding mounting base (340) and a feeding guide rail (350). The feeding mounting base (340) is fixed relative to the feeding valve body. The feeding guide rail (350) is disposed on the feeding mounting base (340) along a first direction. The feeding connecting block (320) is slidably connected to the feeding guide rail (350); and / or, The return valve mechanism further includes a return mounting base (440) and a return guide rail (450). The return mounting base (440) is fixed relative to the return valve body. The return guide rail (450) is arranged on the return mounting base (440) along a first direction. The return connecting block (420) is slidably connected to the return guide rail (450).

7. The coating valve according to claim 2, characterized in that, The feeding drive mechanism (100) further includes a feeding sensing structure, which is connected to the feeding output section (110) and configured to sense the movement limit position of the feeding output section (110). The material return drive mechanism (200) further includes a material return sensing structure connected to the material return output unit (210) and configured to sense the movement limit position of the material return output unit (210).

8. The coating valve according to any one of claims 1-7, characterized in that, The coating valve also includes a connecting pipe (500) connected between the feed valve mechanism and the return valve mechanism. When the feed valve mechanism is closed and the return valve mechanism is open, the slurry in the connecting pipe (500) can flow back to the return device through the return valve mechanism.

9. A coating machine, characterized in that, It includes a coating die head, a slurry storage device, and a return device, and also includes a coating valve as described in any one of claims 1-8.

10. Coating equipment, characterized in that, It includes an unwinding device, a drying device, and a rewinding device, and also includes a coating machine as described in claim 9, wherein the unwinding device, the drying device, and the rewinding device are arranged sequentially, and the coating machine is arranged between the unwinding device and the drying device.

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