Wetting device and coating equipment
By designing a wetting device for coating equipment, the continuous wetting of the prototypical foam is achieved by using pipe assembly and wetting assembly, the problems of poor wetting effect and frequent replacement in traditional methods are solved, and the coating quality is significantly improved.
Patent Information
- Application Number
- CN202421760312.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-24
- Publication Date
- 2025-05-30
- Estimated Expiration
- 2034-07-24
AI Technical Summary
In traditional coating equipment, the wet dust-free cloth used to wet the prototypical foam has poor wetting effect and is easy to air dry, and needs to be replaced frequently, which is time-consuming and labor-intensive.
A wetting device is designed, including a pipe assembly and a wetting assembly, through which water source is passed through the pipe assembly to both sides of the wetting parts. The wetting parts are used to wet the two prototypical foams respectively to ensure that the prototypical foam remains continuously wet.
The wetting effect of the pronunciation foam of the scraper device is improved, the generation and fall of the pronunciation foam dust is avoided, and the coating quality is improved.
Smart Images
Figure CN222918972U_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the technical field of coating equipment, and in particular, to a wetting device and a coating equipment. Background Art
[0002] In coating equipment, it is usually necessary to keep the profiling foam in the doctor blade device in a wet state to prevent dust from the dry profiling foam from falling onto the surface of the coated substrate and affecting the coating quality. In traditional coating equipment, a wet dust-free cloth is usually covered on the profiling foam to wet the profiling foam through the wet dust-free cloth. However, the wetting effect of the wet dust-free cloth is poor and it is easy to dry out, and it needs to be replaced frequently, which is time-consuming and laborious. Summary of the Utility Model
[0003] In view of this, the purpose of the present application is to overcome the deficiencies in the prior art and provide a wetting device that can improve the wetting effect on the profiling foam of the doctor blade device.
[0004] The present application also provides a coating equipment.
[0005] To achieve the above purpose, the technical solutions adopted in the present application are as follows:
[0006] The wetting device according to the first aspect embodiment of the present application is used to wet two profiling foams of the doctor blade device. The wetting device includes: a pipeline assembly, the pipeline assembly includes a first pipeline and a second pipeline, and one end of the first pipeline is communicated with one end of the second pipeline; a wetting assembly, the wetting assembly includes a first wetting member and a second wetting member spaced apart from the first wetting member. One end of the first wetting member is communicated with the other end of the first pipeline, and one end of the second wetting member is communicated with the other end of the second pipeline. The first wetting member is used to wet one of the profiling foams, and the second wetting member is used to wet the other profiling foam.
[0007] The wetting device of the present application has the following advantages:
[0008] In the wetting device provided by the present application, since one end of the first pipeline is communicated with one end of the second pipeline, therefore, water source can be simultaneously introduced into the first pipeline and the second pipeline. Also, since one end of the first wetting member is communicated with the other end of the first pipeline, and one end of the second wetting member is communicated with the other end of the second pipeline, in this way, the water source in the first pipeline can enter into the first wetting member, and at the same time, the water source in the second pipeline can enter into the second wetting member, so that the first wetting member can continuously provide wetting water source to one of the profiling foams, and the second wetting member can continuously provide wetting water source to the other profiling foam, so as to keep the profiling foam in a continuously wet state. In this way, the wetting device of the present application can improve the wetting effect on the profiling foam of the doctor blade device.
[0009] For the wetting device according to the embodiment of the first aspect of the present application, the distance between the end of the first wetting member away from the first pipe and the end of the second wetting member away from the second pipe is adjustable.
[0010] For the wetting device according to the embodiment of the first aspect of the present application, the wetting device further includes a valve assembly, the valve assembly includes a first flow regulating valve and a first valve opening control member, the first flow regulating valve is arranged on the first pipe, and the first valve opening control member is arranged on the first pipe and is electrically connected to the first flow regulating valve.
[0011] For the wetting device according to the embodiment of the first aspect of the present application, the valve assembly further includes a second flow regulating valve and a second valve opening control member, the second flow regulating valve is arranged on the second pipe, and the second valve opening control member is arranged on the second pipe and is electrically connected to the second flow regulating valve.
[0012] For the wetting device according to the embodiment of the first aspect of the present application, the wetting device further includes a controller, and both the first valve opening control member and the second valve opening control member are electrically connected to the controller.
[0013] The coating device according to the embodiment of the second aspect of the present application includes: the wetting device as described above; a doctor blade device, the doctor blade device includes two profiling foams, and the wetting device is used to wet the two profiling foams.
[0014] The coating device of the present application has the following advantages:
[0015] In the coating device provided by the present application, since the above-mentioned wetting device can improve the wetting effect on the profiling foams of the doctor blade device, thus, it can avoid the generation of dust on the profiling foams and at the same time avoid the dust from falling onto the surface of the coated substrate and affecting the coating quality. Therefore, the above-mentioned coating device can enable the substrate to have a better coating quality.
[0016] For the coating device according to the embodiment of the second aspect of the present application, the doctor blade device further includes a doctor blade and a doctor blade box, the doctor blade is rotatably connected to the doctor blade box, and one of the profiling foams is arranged between one end of the doctor blade along its axial direction and the doctor blade box, and the other profiling foam is arranged between the other end of the doctor blade along its axial direction and the doctor blade box.
[0017] For the coating device according to the embodiment of the second aspect of the present application, the doctor blade device further includes a slurry conveying assembly, and the slurry conveying assembly is used to convey the coating slurry into the doctor blade box.
[0018] According to the coating device of the second aspect embodiment of the present application, the slurry conveying assembly includes a silo, a third pipeline, and a fourth pipeline. Two ends of the third pipeline are respectively communicated with the discharge port of the silo and the feed port of the scraper box, and two ends of the fourth pipeline are respectively communicated with the feed port of the silo and the discharge port of the scraper box.
[0019] According to the coating device of the second aspect embodiment of the present application, the slurry conveying assembly further includes a liquid solid content detector and a flow detector. The liquid solid content detector is used to detect the solid content of the slurry in the silo. The flow detector is arranged on the fourth pipeline. The wetting device further includes a controller, and both the liquid solid content detector and the flow detector are electrically connected to the controller. Description of the Drawings
[0020] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for 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.
[0021] Figure 1 Shows a schematic structural diagram of the coating device in the present application;
[0022] Figure 2 Shows a schematic structural diagram of the wetting device in the present application;
[0023] Figure 3 Shows a schematic structural diagram of the pipeline assembly, the wetting assembly, and the valve assembly in the present application;
[0024] Figure 4 Shows a schematic structural diagram of the scraper device in the present application;
[0025] Figure 5 Shows a schematic structural diagram of the slurry conveying assembly in the present application.
[0026] Main Element Symbol Explanation:
[0027] 10 - Wetting device;
[0028] 100 - Pipeline assembly; 110 - First pipeline; 120 - Second pipeline;
[0029] 200 - Wetting assembly; 210 - First wetting element; 220 - Second wetting element;
[0030] 300 - Valve assembly; 310 - First flow regulating valve; 320 - First valve opening control member; 330 - Second flow regulating valve; 340 - Second valve opening control member;
[0031] 400 - Controller;
[0032] 20 - Scraper device; 201 - Profiling foam; 202 - Scraper; 203 - Scraper box; 204 - Slurry conveying assembly; 2041 - Silo; 2042 - Third pipe; 2043 - Fourth pipe; 2044 - Liquid solid content detection member; 2045 - Flow detection member. Detailed implementation manners
[0033] The embodiments of the present application will be described in detail below. The examples of the embodiments are shown in the drawings, where 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 by referring to the drawings are exemplary and are only used to explain the present application and should not be construed as a limitation to the present application.
[0034] In the description of the present application, it should be understood that the orientation or positional relationships indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. are based on the orientation or positional relationships shown in the drawings, and are 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 thus should not be construed as a limitation to the present application.
[0035] In addition, the terms "first" and "second" are only used for descriptive purposes and should not be construed as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present application, "a plurality" means two or more unless otherwise specifically defined.
[0036] In the present application, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed", etc. should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two elements or the interaction relationship between 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 circumstances.
[0037] In this application, unless otherwise clearly specified and defined, the first feature being "on" or "under" the second feature may be that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature being "above", "over" and "on top of" the second feature may be that the first feature is directly above or obliquely above the second feature, or merely indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature being "under", "beneath" and "underneath" the second feature may be that the first feature is directly below or obliquely below the second feature, or merely indicates that the horizontal height of the first feature is less than that of the second feature.
[0038] Referring to Figure 2 and Figure 3 As shown, the wetting device 10 involved in the embodiment of this application is used to wet two profiling foams 201 of the doctor blade device 20. The wetting device 10 includes: a pipeline assembly 100 and a wetting assembly 200.
[0039] Specifically, the pipeline assembly 100 includes a first pipeline 110 and a second pipeline 120, and one end of the first pipeline 110 is communicated with one end of the second pipeline 120; the wetting assembly 200 includes a first wetting member 210 and a second wetting member 220 spaced apart from the first wetting member 210. One end of the first wetting member 210 is communicated with the other end of the first pipeline 110, and one end of the second wetting member 220 is communicated with the other end of the second pipeline 120. The first wetting member 210 is used to wet one of the profiling foams 201, and the second wetting member 220 is used to wet the other profiling foam 201.
[0040] In the wetting device 10 provided in this application, since one end of the first pipeline 110 is communicated with one end of the second pipeline 120, therefore, water sources can be simultaneously introduced into the first pipeline 110 and the second pipeline 120. Also, since one end of the first wetting member 210 is communicated with the other end of the first pipeline 110, and one end of the second wetting member 220 is communicated with the other end of the second pipeline 120, thus, the water source in the first pipeline 110 can enter the first wetting member 210, and at the same time the water source in the second pipeline 120 can enter the second wetting member 220, so that the first wetting member 210 can continuously provide a wetting water source to one of the profiling foams 201, and the second wetting member 220 can continuously provide a wetting water source to the other profiling foam 201, thereby keeping the profiling foam 201 in a continuously wet state. In this way, the wetting device 10 of this application can improve the wetting effect on the profiling foam 201 of the doctor blade device 20.
[0041] Specifically, the distance between the end of the first wetting member 210 away from the first pipeline 110 and the end of the second wetting member 220 away from the second pipeline 120 is adjustable.
[0042] In this embodiment, since the distance between the end of the first wetting member 210 away from the first pipe 110 and the end of the second wetting member 220 away from the second pipe 120 is adjustable, thus, the relative positions of the first wetting member 210 and the second wetting member 220 can be adjusted according to the distance between the two profiling foams 201, so that the water in the first wetting member 210 and the second wetting member 220 can drip onto the corresponding profiling foams 201.
[0043] Specifically, the first wetting member 210 is a first universal joint corrugated pipe, one end of the first universal joint corrugated pipe is communicated with the first pipe 110, the second wetting member 220 is a second universal joint corrugated pipe, one end of the second universal joint corrugated pipe is communicated with the second pipe 120, and the end of the first universal joint corrugated pipe away from the first pipe 110 can perform universal movement, that is, it can approach or move away from the second wetting member 220, and at the same time can approach or move away from the first pipe 110. Similarly, the end of the second universal joint corrugated pipe away from the second pipe 120 can perform universal movement, that is, it can approach or move away from the first wetting member 210, and at the same time can approach or move away from the second pipe 120. Then, the positions of the first wetting member 210 and the second wetting member 220 can be adjusted according to the positions of the two profiling foams 201, so that the water in the first wetting member 210 and the second wetting member 220 can drip onto the profiling foam 201.
[0044] Refer to Figure 2 and Figure 3 As shown, the wetting device 10 further includes a valve assembly 300. The valve assembly 300 includes a first flow regulating valve 310 and a first valve opening control member 320. The first flow regulating valve 310 is arranged on the first pipe 110, and the first valve opening control member 320 is arranged on the first pipe 110 and is electrically connected to the first flow regulating valve 310.
[0045] In this embodiment, since the first flow regulating valve 310 is arranged on the first pipe 110, thus, the flow rate of the water in the first pipe 110 can be adjusted through the first flow regulating valve 310. Also, since the first valve opening control member 320 is arranged on the first pipe 110 and is electrically connected to the first flow regulating valve 310, thus, the opening of the first flow regulating valve 310 can be controlled through the first valve opening control member 320, so that the first flow regulating valve 310 can adjust the flow rate of the water in the first pipe 110.
[0046] Specifically, the first flow regulating valve 310 is a speed regulating valve. The speed regulating valve is a combined valve formed by connecting a constant differential pressure reducing valve and a throttle valve in series. The throttle valve is used to regulate the passing flow rate, and the constant differential pressure reducing valve automatically compensates for the influence of load changes, so that the pressure difference before and after the throttle valve is a fixed value, eliminating the influence of load changes on the flow rate.
[0047] Refer toFigure 3 As shown in the figure, the valve assembly 300 further includes a second flow regulating valve 330 and a second valve opening control member 340. The second flow regulating valve 330 is disposed on the second pipeline 120, and the second valve opening control member 340 is disposed on the second pipeline 120 and is electrically connected to the second flow regulating valve 330.
[0048] In this embodiment, since the second flow regulating valve 330 is disposed on the second pipeline 120, thus, the flow rate of the water in the second pipeline 120 can be adjusted by the second flow regulating valve 330. Also, since the second valve opening control member 340 is disposed on the second pipeline 120 and is electrically connected to the second flow regulating valve 330, thus, the opening of the second flow regulating valve 330 can be controlled by the second valve opening control member 340 so that the second flow regulating valve 330 can adjust the flow rate of the water in the second pipeline 120.
[0049] Specifically, the second flow regulating valve 330 is a speed regulating valve.
[0050] Refer to Figure 2 As shown in the figure, the wetting device 10 further includes a controller 400. Both the first valve opening control member 320 and the second valve opening control member 340 are electrically connected to the controller 400.
[0051] In this embodiment, since both the first valve opening control member 320 and the second valve opening control member 340 are electrically connected to the controller 400, thus, an instruction can be sent by the controller 400 to the first valve opening control member 320 and the second valve opening control member 340 so that the first valve opening control member 320 can adjust or stop adjusting the valve opening of the first flow regulating valve 310. Similarly, the second valve opening control member 340 can adjust or stop adjusting the valve opening of the second flow regulating valve 330.
[0052] Refer to Figure 1 As shown in the figure, the coating equipment according to the embodiment of the present application includes the above-mentioned wetting device 10 and a doctor blade device 20.
[0053] Specifically, the doctor blade device 20 includes two profiled foams 201, and the wetting device 10 is used to wet the two profiled foams 201.
[0054] In the coating equipment provided by the present application, since the above-mentioned wetting device 10 can improve the wetting effect on the profiled foams 201 of the doctor blade device 20, thus, dust generation on the profiled foams 201 can be avoided, and at the same time, dust falling onto the surface of the coated substrate can be avoided, which affects the coating quality. Therefore, the above-mentioned coating equipment can enable the substrate to have a better coating quality.
[0055] Refer toFigure 4 As shown, the doctor blade device 20 further includes a doctor blade 202 and a doctor blade box 203. The doctor blade 202 is rotatably connected to the doctor blade box 203, and one of the profiling foams 201 is disposed between one axial end of the doctor blade 202 and the doctor blade box 203, and the other profiling foam 201 is disposed between the other axial end of the doctor blade 202 and the doctor blade box 203.
[0056] In this embodiment, the doctor blade 202 can coat the slurry on the surface of the substrate during its rolling process. The doctor blade box 203 is used to carry the slurry so that the surface of the doctor blade 202 can be coated with a slurry coating. Since one of the profiling foams 201 is disposed between one axial end of the doctor blade 202 and the doctor blade box 203, and the other profiling foam 201 is disposed between the other axial end of the doctor blade 202 and the doctor blade box 203, thus, the gaps between the two ends of the doctor blade 202 and the doctor blade box 203 can be filled by the profiling foams 201, so that a closed cavity can be formed between the doctor blade box 203 and the doctor blade 202. At the same time, the profiling foams 201 can reduce the frictional force generated by the direct contact between the doctor blade box 203 and the doctor blade 202, so as to reduce the wear of the doctor blade box 203 and the doctor blade 202.
[0057] Refer to Figure 4 and Figure 5 As shown, the doctor blade device 20 further includes a slurry delivery assembly 204. The slurry delivery assembly 204 is used to deliver the coating slurry into the doctor blade box 203.
[0058] In this embodiment, the coating slurry can be delivered into the doctor blade box 203 through the slurry delivery assembly 204, so that the surface of the doctor blade 202 can adhere to the coating slurry in the doctor blade box 203 during the rotation of the doctor blade 202 relative to the doctor blade box 203. Further, the doctor blade 202 with the adhered coating slurry can coat the surface of the substrate during the rolling process, thereby completing the coating process. The slurry delivery assembly 204 can continuously supply the slurry into the doctor blade box 203 so that the surface of the doctor blade 202 can continuously adhere to the coating slurry, thereby maintaining the continuity of the coating process and improving the coating quality.
[0059] Refer to Figure 5 As shown, the slurry delivery assembly 204 includes a storage bin 2041, a third pipeline 2042, and a fourth pipeline 2043. The two ends of the third pipeline 2042 are respectively communicated with the discharge port of the storage bin 2041 and the feed port of the doctor blade box 203, and the two ends of the fourth pipeline 2043 are respectively communicated with the feed port of the storage bin 2041 and the discharge port of the doctor blade box 203.
[0060] In this embodiment, since the two ends of the third pipeline 2042 are respectively communicated with the discharge port of the storage bin 2041 and the feed port of the scraper box 203, and the two ends of the fourth pipeline 2043 are respectively communicated with the feed port of the storage bin 2041 and the discharge port of the scraper box 203, the slurry in the storage bin 2041 can enter the scraper box 203 through the third pipeline 2042. At the same time, the excess slurry accumulated in the scraper box 203 can flow back to the storage bin 2041 through the fourth pipeline 2043. In this way, the scraper box 203 can be continuously filled with slurry, and the excess slurry can flow back to the storage bin 2041 to prevent the excess slurry from overflowing from the scraper box 203 and dripping outside the scraper box 203.
[0061] Continue to refer to Figure 5 As shown, the slurry conveying assembly 204 further includes a liquid solid content detector 2044 and a flow detector 2045. The liquid solid content detector 2044 is used to detect the solid content of the slurry in the storage bin 2041. The flow detector 2045 is arranged on the fourth pipeline 2043. The wetting device 10 further includes a controller 400. Both the liquid solid content detector 2044 and the flow detector 2045 are electrically connected to the controller 400.
[0062] In this embodiment, after the water in the first wetting member 210 and the second wetting member 220 wets the profile foam 201, the water will enter the doctor blade cartridge 203 and then enter the material bin 2041 via the fourth pipeline 2043. Thus, the slurry in the material bin 2041 will be diluted. At this time, the solid content of the slurry in the material bin 2041 can be detected at any time by the liquid solid content detector 2044. When the liquid solid content detector 2044 detects that the solid content value of the slurry in the material bin 2041 is lower than the preset value, the liquid solid content detector 2044 sends a signal to the controller 400, so that the controller 400 sends instructions to the first valve opening control member 320 and the second valve opening control member 340, causing the first valve opening control member 320 to control the valve opening of the first flow regulating valve 310 to become smaller, and at the same time causing the second valve opening control member 340 to control the valve opening of the second flow regulating valve 330 to become smaller, so as to reduce the water flow in the first pipeline 110 and the second pipeline 120, thereby reducing the liquid flow in the fourth pipeline 2043. When the flow detector 2045 detects that the liquid flow in the fourth pipeline 2043 has decreased to the preset flow rate, it can send a signal to the controller 400, so that the controller 400 sends instructions to the first valve opening control member 320 and the second valve opening control member 340, causing the first valve opening control member 320 to control the valve opening of the first flow regulating valve 310 to become larger, and at the same time causing the second valve opening control member 340 to control the valve opening of the second flow regulating valve 330 to become larger, so as to increase the water flow in the first pipeline 110 and the second pipeline 120. This process is repeated in a cycle to ensure that the profile foam 201 can maintain a continuously wet state, and also ensure that the solid content value of the slurry in the material bin 2041 is within the preset range, so as to improve the coating effect.
[0063] Specifically, the liquid solid content detector 2044 is an ultrasonic liquid solid content detector.
[0064] In the description of this specification, the description with reference to terms such as "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in a suitable manner in any one or more embodiments or examples. In addition, without contradiction, those skilled in the art can combine and combine the different embodiments or examples described in this specification and the features of different embodiments or examples.
[0065] Although the embodiments of the present application have been shown and described above, it can be understood that the above embodiments are exemplary and should not be construed as limiting the present application. Those of ordinary skill in the art can make changes, modifications, substitutions, and variations to the above embodiments within the scope of the present application.
Claims
1. A wetting device, characterized in that: Two contoured foams for wetting the scraper device, the wetting device comprising: A pipeline assembly, the pipeline assembly comprising a first pipeline and a second pipeline, one end of the first pipeline is connected to one end of the second pipeline; A wetting component, the wetting component includes a first wetting piece and a second wetting piece spaced apart from the first wetting piece, one end of the first wetting piece is connected to the other end of the first pipe, one end of the second wetting piece is connected to the other end of the second pipe, the first wetting piece is used to wet one of the contoured foams, and the second wetting piece is used to wet the other of the contoured foams.
2. The wetting device according to claim 1, characterized in that: The distance between an end of the first wetted element away from the first pipe and an end of the second wetted element away from the second pipe is adjustable.
3. The wetting device according to claim 1, characterized in that: The wetting device also includes a valve assembly, which includes a first flow regulating valve and a first valve opening control component. The first flow regulating valve is arranged on the first pipeline, and the first valve opening control component is arranged on the first pipeline and is electrically connected to the first flow regulating valve.
4. The wetting device according to claim 3, characterized in that: The valve assembly further includes a second flow regulating valve and a second valve opening control component. The second flow regulating valve is disposed on the second pipeline. The second valve opening control component is disposed on the second pipeline and is electrically connected to the second flow regulating valve.
5. The wetting device according to claim 4, characterized in that: The wetting device further includes a controller, and the first valve opening control component and the second valve opening control component are both electrically connected to the controller.
6. A coating device, characterized in that: include: The wetting device according to any one of claims 1 to 5; The scraper device comprises two contoured foams, and the wetting device is used for wetting the two contoured foams.
7. The coating device according to claim 6, characterized in that: The scraper device also includes a scraper and a scraper box, the scraper is rotatably connected to the scraper box, and one of the contoured foams is arranged between one end of the scraper along its axial direction and the scraper box, and the other contoured foam is arranged between the other end of the scraper along its axial direction and the scraper box.
8. The coating device according to claim 7, characterized in that: The scraper device also includes a slurry conveying component, which is used to convey coating slurry into the scraper box.
9. The coating device according to claim 8, characterized in that: The slurry conveying assembly includes a silo, a third pipeline and a fourth pipeline. The two ends of the third pipeline are respectively connected to the discharge port of the silo and the feed port of the scraper box, and the two ends of the fourth pipeline are respectively connected to the feed port of the silo and the discharge port of the scraper box.
10. The coating device according to claim 9, characterized in that The slurry conveying assembly also includes a liquid solid content detection component and a flow detection component. The liquid solid content detection component is used to detect the solid content of the slurry in the silo. The flow detection component is arranged on the fourth pipeline. The wetting device also includes a controller. The liquid solid content detection component and the flow detection component are both electrically connected to the controller.