Sealing device for coating die

Abstract

The application relates to the technical field of coating devices, and provides a sealing device for a coating die. The sealing device for the coating die comprises a base, a sealing part and a cleaning mechanism; the sealing part and the cleaning mechanism are arranged on the base, the sealing part is used for sealing a lip of the coating die; the cleaning mechanism comprises a cleaning part and a driving assembly, the cleaning part is arranged on the base, and the driving assembly is used for driving the cleaning part to approach and clean the sealing part. The sealing device for the coating die can seal the coating die and reduce solution waste when the coating equipment is on standby.

Description

Technical Field

[0001] This application relates to the field of coating apparatus technology, and in particular to a sealing device for a coating die head. Background Technology

[0002] In the preparation of perovskite thin films, slit coating equipment is often used for the coating process. The key core component of the slit coating equipment is the coating die head, which mainly controls the uniformity of liquid exiting the slit to achieve uniform coating of the perovskite wet film.

[0003] During the operation of coating equipment, the die head needs to perform a liquid ejection operation at regular intervals; otherwise, the solution at the lip of the die head will dry out and clog the lip, affecting film formation. However, the timed liquid ejection operation will result in waste of perovskite solution, especially during long periods of standby, where the amount of solution wasted will be even greater. Utility Model Content

[0004] In view of this, this application aims to provide a sealing device for a coating die head to reduce solution waste in coating equipment.

[0005] To achieve the above objectives, the technical solution of this application is implemented as follows:

[0006] A sealing device for a coating die head includes a base, a sealing part and a cleaning mechanism disposed on the base, the sealing part being used to seal the lip of the coating die head;

[0007] The cleaning mechanism includes a cleaning section disposed on the base, and a drive assembly for driving the cleaning section to approach and clean the sealing section.

[0008] Furthermore, the sealing part is provided with a sealing groove adapted to the outer contour of the lip, and the sealing part is inserted into the sealing groove through the lip to seal the lip.

[0009] Furthermore, the driving assembly includes a first driving part disposed on the base and a second driving part disposed at the driving end of the first driving part, and the cleaning part is disposed on the driving end of the second driving part; the second driving part can drive the cleaning part to move closer to or further away from the sealing part, and the first driving part can drive the second driving part to reciprocate along the length direction of the sealing part, so that the cleaning part completely cleans the sealing groove.

[0010] Furthermore, the driving end of the second driving unit is provided with a lifting part, and the cleaning part is provided on the lifting end of the lifting part. The lifting part can drive the cleaning part to rise or fall.

[0011] Furthermore, at least one of the first drive unit, the second drive unit, and the lifting unit adopts a linear module.

[0012] Furthermore, the cleaning unit includes a base frame disposed on the drive end of the second drive unit, and a cleaning unit and a drying unit disposed on the base frame. The cleaning unit is used to clean the sealing groove, and the drying unit is used to dry the sealing groove.

[0013] Furthermore, the drying unit includes a drying body having a drying chamber, and an air blowing port disposed on the drying body and communicating with the drying chamber, wherein the air blowing direction of the air blowing port is inclined relative to the length direction of the sealing part.

[0014] Furthermore, the angle α between the blowing direction of the air outlet and the length direction of the sealing part is between 15 and 60°.

[0015] Furthermore, the sealing part is made of a corrosion-resistant elastic material.

[0016] Furthermore, the elastic expansion and contraction of the sealing part is between 0.1 and 0.5 mm.

[0017] Compared with related technologies, this application has the following advantages:

[0018] (1) The sealing device for coating die head described in this application can seal the lip of the coating die head by setting the sealing part, so as to slow down the drying rate of the solution at the lip and reduce the amount of solution used for timed liquid discharge. At the same time, by setting the cleaning part, the solution remaining in the sealing part can be cleaned after the sealing part seals the lip, keeping the sealing part clean and facilitating the subsequent use of the sealing part. The cooperation of the sealing part and the cleaning part can seal the lip of the coating die head, reduce the amount of solution used for timed liquid discharge operation when the die head is in standby, and keep the sealing part clean, which is conducive to the subsequent use of the sealing part and facilitates design and implementation.

[0019] (2) By using a sealing groove provided in the sealing part and a lip inserted into the sealing groove for sealing, the sealing part can seal the lip, which improves the assembly efficiency of the sealing part when sealing the lip and makes it easier to operate.

[0020] (3) By setting the first driving part and the second driving part, and with the cooperation of the first driving part and the second driving part, it is easy to drive the cleaning part to move along the length and width of the sealing part, which helps to better clean the sealing groove. The structure is simple and easy to design and implement.

[0021] (4) The lifting part makes it easy to drive the cleaning part to rise or fall, which facilitates the cleaning of the sealing groove by the cleaning part, helps to improve the cleaning effect of the cleaning part, and facilitates design and implementation.

[0022] (5) By making at least one of the first drive unit, the second drive unit and the lifting unit a linear module, it is easy to process and manufacture, and it is helpful for design implementation.

[0023] (6) By setting up a cleaning unit and a drying unit, the sealing tank can be dried after cleaning, which helps to improve the cleaning and drying efficiency of the sealing tank and facilitates design and implementation.

[0024] (7) By setting the blowing direction of the air outlet to be inclined relative to the length direction of the sealing part, it is convenient to blow the airflow into the sealing groove along the inclined direction, which helps to blow away the water droplets remaining in the sealing part, which is conducive to improving the working efficiency of the drying unit and facilitating design and implementation.

[0025] (8) By making the angle α between the blowing direction and the length direction of the sealing part between 15-60°, it is beneficial to further improve the working efficiency of the drying unit and facilitate the design and implementation.

[0026] (9) By using a corrosion-resistant elastic material to make the sealing part, it is easy to achieve an insertion seal between the sealing part and the lip. In addition, the corrosion-resistant elastic material can improve the service life of the sealing part while forming a seal with the sealing part through its own elasticity.

[0027] (10) By using elastic materials with an elastic expansion range of 0.1-0.5mm, it is beneficial to ensure the shape of the main structure of the sealing part, facilitate the insertion and sealing of the lip, and ensure the structural strength of the sealing part itself, making it easy for the lip to be inserted into the sealing groove, which is conducive to design and implementation. Attached Figure Description

[0028] The accompanying drawings, which form part of this application, are used to provide a further understanding of this application. The illustrative embodiments and descriptions of this application are used to explain this application and do not constitute an undue limitation of this application. In the drawings:

[0029] Figure 1 This is a schematic diagram of the sealing device for a coating die head as described in an embodiment of this application;

[0030] Figure 2 This is a schematic diagram of the structure of the lip of the sealing part of the coating die head as described in the embodiment of this application;

[0031] Figure 3 This is a front view of the sealing device for the coating die head described in an embodiment of this application;

[0032] Figure 4 for Figure 1 Enlarged view of point A;

[0033] Figure 5for Figure 3 Enlarged view of point B;

[0034] Explanation of reference numerals in the attached figures:

[0035] 1. Base;

[0036] 101. Support plate;

[0037] 2. Sealing part;

[0038] 201. Sealing groove;

[0039] 3. Cleaning facilities;

[0040] 301. Cleaning Department;

[0041] 3011, Base frame; 3012, Cleaning unit; 3013, Drying unit; 3014, Nozzle; 3015, Water inlet; 3016, Air inlet;

[0042] 30111, First substrate; 30112, Second substrate; 30131, Drying body; 30132, Air outlet;

[0043] 302. Driver components;

[0044] 3021, First drive unit; 3022, Second drive unit; 3023, Lifting unit;

[0045] 4. Coating die head;

[0046] 401. Mold head body; 402. Lip;

[0047] 5. Support; 6. Mounting base. Detailed Implementation

[0048] To make the technical solution and advantages of this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of this application.

[0049] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other.

[0050] Furthermore, it should be noted that in the description of this application, if terms such as "upper," "lower," "inner," or "outer" appear, indicating orientation or positional relationship, these are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on this application. In addition, if terms such as "first" or "second" appear, they are also used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0051] Furthermore, in the description of this application, unless otherwise expressly defined, the terms "installation," "connection," "joining," and "connector" 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; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this application in light of the specific circumstances.

[0052] In this application, the terms "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to a specific feature, structure, material, or characteristic described in connection with that embodiment or example, which is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0053] The present application will now be described in detail through exemplary embodiments. However, it should be understood that, without further description, elements, structures, and features in one embodiment may be advantageously incorporated into other embodiments.

[0054] An embodiment of the first aspect of this application provides a sealing device for a coating die, which is used in a coating apparatus for preparing batteries. It is mainly used to seal the lip of the coating die. The sealing device for the coating die in this embodiment, by utilizing its structural innovation, can reduce the frequency of liquid ejection operation of the coating die by sealing the lip of the coating die, thereby helping to reduce the amount of coating solution wasted.

[0055] In related technologies, slit coating equipment is often used in the preparation of perovskite thin films. The key component of the slit coating equipment is the coating die head, which mainly controls the uniformity of liquid output from the slit to achieve uniform coating of perovskite wet film on the substrate surface.

[0056] During the operation of the coating equipment, when the equipment is in standby mode, the residual perovskite solution at the lip of the die head will gradually dry due to solvent evaporation, forming dried material that blocks the lip. Once the lip is blocked, it will disrupt the stability and uniformity of the liquid exiting the slit during the subsequent coating process, resulting in defects such as streaks, missed coatings, and uneven thickness in the coated wet film, thus affecting the film formation.

[0057] Therefore, the die head of the coating equipment needs to perform a periodic dispensing operation, that is, to periodically and quantitatively discharge perovskite solution from the lip to maintain the fluidity of the solution at the lip and prevent it from drying out. However, the periodic dispensing operation will result in waste of perovskite solution, especially during long periods of standby, when the amount of solution wasted will be even greater.

[0058] In view of this, in order to overcome the shortcomings of the related technology, the sealing device for the coating die head in this embodiment combines... Figures 1 to 5 As shown, the overall design includes a base 1, a sealing part 2, and a cleaning mechanism 3.

[0059] The sealing part 2 and the cleaning mechanism 3 are both located on the base 1. The sealing part 2 is used to seal the lip 402 of the coating die head 4. The cleaning mechanism 3 includes a cleaning part 301 located on the base 1, and a driving assembly 302 for driving the cleaning part 301 to approach and clean the sealing part 2.

[0060] Therefore, by setting the sealing part 2, the lip 402 of the coating die head 4 can be sealed, thereby slowing down the drying rate of the solution at the lip 402 and reducing the amount of solution used for timed liquid discharge. At the same time, by setting the cleaning part 301, the solution remaining in the sealing part 2 can be cleaned after the sealing part 2 seals the lip 402, keeping the sealing part 2 clean and facilitating its subsequent use. The cooperation between the sealing part 2 and the cleaning part 301 can seal the lip 402 of the coating die head 4, reduce the amount of solution used for timed liquid discharge during die head standby, and keep the sealing part 2 clean, which is conducive to the subsequent use of the sealing part 2 and facilitates design implementation.

[0061] Based on the above overall introduction, specifically regarding the coating die head 4 in this embodiment, combined with... Figure 2 As shown, it generally includes a mold head body 401.

[0062] The die body 401 has an internal cavity for the flow of coating solution. The end of the die body 401 used for coating is called the lip 402, and the lip 402 has a slit for the coating solution to flow out. The die body 401 is usually connected to the liquid supply system of the coating equipment. The liquid supply system pumps the coating solution into the die body 401, and after passing through the internal cavity of the die body 401, it flows out from the slit of the lip 402 and is coated on the substrate, thereby completing the coating operation.

[0063] The structure of the die head body 401 described above can be referenced from the relevant structure in existing coating equipment, and will not be repeated here.

[0064] In addition, in specific implementation, the base 1 can be a separately set workbench, or it can be a region in the existing coating equipment that can be used to set the sealing part 2 and the cleaning mechanism 3, as long as it can meet the requirements for setting the sealing part 2 and the cleaning mechanism 3.

[0065] The connection between the die head body 401 and the external liquid supply system can also be obtained by referring to the connection of the relevant structure in the existing coating equipment (such as pipeline connection, etc.), and will not be described in detail here.

[0066] Continue to combine Figures 1 to 5 As shown, in some exemplary embodiments, this embodiment may, for example, provide a sealing groove 201 on the sealing part 2.

[0067] The sealing groove 201 is adapted to the outer contour of the lip 402, and the sealing part 2 is inserted into the sealing groove 201 through the lip 402 to seal the lip 402.

[0068] It is understandable that by using the sealing groove 201 provided in the sealing part 2 and the lip 402 inserted into the sealing groove 201 for sealing, the sealing part 2 can seal the lip 402, thereby improving the assembly efficiency of the sealing part 2 when sealing the lip 402 and making it easier to operate.

[0069] In practical implementation, the outer contour of the lip 402 of the general coating equipment can be regarded as V-shaped, and the shape of the sealing groove 201 can also be set as V-shaped. The sealing groove 201, which is set in V-shape, is sunken on the sealing part 2, and the length of the sealing groove 201 can be slightly longer than the length of the lip 402, so as to better seal the lip 402.

[0070] In addition, the base 1 may be provided with multiple support plates 101 to constrain the sealing part 2 on the base 1. The support plate 101 is provided with a support groove adapted to the outer contour of the sealing part 2. Multiple support plates 101 are arranged at intervals on the base 1, and the sealing part 2 is fixed in the support groove to better support and fix the sealing part 2.

[0071] Continue to combine Figures 1 to 5 As shown, in some exemplary embodiments, the sealing part 2 is provided with a sealing groove 201 as an example. In this embodiment, the sealing part 2 may be made of a corrosion-resistant elastic material.

[0072] It is understandable that by using a corrosion-resistant elastic material to make the sealing part 2, it is easy to achieve an insertion seal between the sealing part 2 and the lip 402. In addition, the corrosion-resistant elastic material can form a seal with the sealing part 2 through its own elasticity, and at the same time, it can improve the service life of the sealing part 2.

[0073] In specific implementations, the sealing part 2 can be made of corrosion-resistant rubber material (such as fluororubber), and the shape of the sealing part 2 and the shape of the sealing groove 201 can still be referred to the embodiments described above, and will not be repeated here.

[0074] In addition, the sealing part 2 can be made of corrosion-resistant elastic material, and the interior of the sealing part 2 can also be filled with a skeleton to improve the structural strength of the sealing part 2. It is only necessary to ensure that the contact surface between the sealing part 2 and the lip 402 is made of corrosion-resistant elastic material.

[0075] Continue to combine Figures 1 to 5 As shown, in some exemplary embodiments, the sealing part 2 is still made of a corrosion-resistant elastic material, and in this embodiment, the elastic expansion and contraction of the sealing part 2 can be between 0.1-0.5 mm.

[0076] It is understandable that by using an elastic material with an elastic stretch range of 0.1-0.5mm, it is beneficial to ensure the shape of the main structure of the sealing part 2 while facilitating the insertion and sealing of the lip 402, and also ensuring the structural strength of the sealing part 2 itself, making it easier for the lip 402 to be inserted into the sealing groove 201, which is beneficial for design and implementation.

[0077] It is worth mentioning that when the sealing part 2 is provided with a skeleton, the thickness of the elastic material of the sealing groove 201 should be greater than its elastic expansion and contraction, so as to ensure the sealing between the sealing groove 201 and the lip 402.

[0078] Continue to combine Figures 1 to 5 As shown, in some exemplary embodiments, the sealing part 2 is provided with a sealing groove 201 as an example. In this embodiment, the driving assembly 302 may include a first driving part 3021 and a second driving part 3022.

[0079] The first drive unit 3021 is disposed on the base 1, the second drive unit 3022 is disposed on the drive end of the first drive unit 3021, and the cleaning unit 301 is disposed on the drive end of the second drive unit 3022. The second drive unit 3022 can drive the cleaning unit 301 to move closer to or further away from the sealing part 2, and the first drive unit 3021 can drive the second drive unit 3022 to reciprocate along the length direction of the sealing part 2, so as to completely clean the sealing groove 201.

[0080] It is understandable that the arrangement of the first drive unit 3021 and the second drive unit 3022, and the cooperation between the first drive unit 3021 and the second drive unit 3022, facilitates the movement of the cleaning unit 301 along the length and width directions of the sealing unit 2, thereby helping to better complete the cleaning of the sealing groove 201. The structure is simple and easy to design and implement.

[0081] In specific implementation, both the first drive unit 3021 and the second drive unit 3022 can be linear modules. For example, the first drive unit 3021 can be a synchronous belt module with a slide table, and the second drive unit 3022 can be a telescopic cylinder (such as an electric cylinder). In this case, the drive end of the first drive unit 3021 is the slide table, and the second drive unit 3022 is set on the slide table. In order to facilitate the arrangement of the drive unit, a support 5 can be provided on the slide table to better realize the arrangement of the second drive unit 3022.

[0082] Continue to combine Figures 1 to 5 As shown, in some exemplary embodiments, the drive component 302 includes a first drive part 3021 and a second drive part 3022. In this embodiment, for example, the drive end of the second drive part 3022 may be provided with a lifting part 3023.

[0083] The cleaning unit 301 is located on the lifting end of the lifting unit 3023, and the lifting unit 3023 can drive the cleaning unit 301 to rise or fall.

[0084] It is understandable that the lifting part 3023 facilitates the raising or lowering of the cleaning part 301, thereby facilitating the cleaning of the sealing groove 201 by the cleaning part 301, improving the cleaning effect of the cleaning part 301, and making the design and implementation easier.

[0085] In specific implementation, taking the second drive unit 3022 as an example of using a telescopic cylinder, the lifting unit 3023 can be mounted on the drive end (i.e., telescopic end) of the telescopic cylinder through the mounting base 6. In order to facilitate the arrangement of the lifting unit 3023, the support 5 is provided with a sliding groove, and the bottom of the mounting base 6 is provided with a slider. The slider is slidably mounted in the sliding groove so as to better realize the second drive unit 3022 driving the lifting unit 3023, and by driving the lifting unit 3023, the cleaning unit 301 can be driven to approach or move away from the sealing groove 201.

[0086] In addition, in specific implementations, the above-mentioned lifting part 3023 can also be a telescopic cylinder (such as an electric cylinder). The telescopic cylinder is arranged along the Z direction on the second drive part 3022, and the cleaning part 301 is provided on the drive end of the telescopic cylinder so that the cleaning part 301 can rise or fall relative to the sealing groove 201.

[0087] Continue to combine Figures 1 to 5As shown, in some exemplary embodiments, this embodiment may, for example, include a cleaning unit 301 comprising a base frame 3011 and a cleaning unit 3012 and a drying unit 3013 disposed on the base frame 3011.

[0088] The base frame 3011 is located on the drive end of the second drive unit 3022, the cleaning unit 3012 is used to clean the sealing groove 201, and the drying unit 3013 is used to dry the sealing groove 201.

[0089] It is understandable that by setting up the cleaning unit 3012 and the drying unit 3013, the sealing groove 201 can be dried after cleaning, which helps to improve the cleaning and drying efficiency of the sealing groove 201 and facilitates design and implementation.

[0090] In a specific implementation, the above-mentioned base frame 3011 may include, for example, a first substrate 30111 and a second substrate 30112. The first substrate 30111 is connected to the lifting end of the lifting part 3023, and the second substrate 30112 extends from the bottom surface of the lifting part 3023 along the lifting direction of the lifting part 3023 toward the sealing groove 201. The cleaning unit 3012 and the drying unit 3013 are both fixed on the second substrate 30112.

[0091] Furthermore, the cleaning unit 3012 may include, for example, a nozzle 3014 disposed on the second substrate 30112 and an external water supply system. The nozzle 3014 is connected to the external water supply system via a pipeline, and the spray surface of the nozzle 3014 is positioned facing the sealing groove 201. Based on this, in order to ensure the continuity of water spraying in the cleaning unit 3012, a cleaning body is provided between the nozzle 3014 and the external water supply.

[0092] Specifically, the cleaning body is mounted on the second substrate 30112, and the nozzle 3014 is located at one end of the cleaning body facing the sealing groove 201. The cleaning body is provided with a water inlet 3015, which is connected to an external water supply system through a pipeline. The cleaning body has an inner cavity, and both the water inlet 3015 and the nozzle 3014 are connected to the inner cavity of the cleaning body. Water pumped by the external water supply system enters the inner cavity through the water inlet 3015 and is then sprayed to the outside through the nozzle 3014.

[0093] It is worth mentioning that, in addition to water, the cleaning fluid for the cleaning unit 3012 can preferably be an organic solvent (such as acetone) to accelerate the cleaning efficiency. In specific implementations, the specific composition of the cleaning fluid can be referred to in the related art for the specific composition of the cleaning fluid used to clean the coating die head 4, and will not be repeated here.

[0094] Continue to combine Figures 1 to 5As shown, in some exemplary embodiments, the cleaning unit 301 includes a cleaning unit 3012 and a drying unit 3013 disposed on a base frame 3011. In this embodiment, the drying unit 3013 may include a drying body 30131 and an air outlet 30132.

[0095] The drying body 30131 has an inner cavity, and the air blowing port 30132 is connected to the inner cavity of the drying body 30131. The air blowing direction of the air blowing port 30132 is inclined relative to the length direction of the sealing part 2.

[0096] It is understandable that by setting the air blowing direction of the air blowing port 30132 to be inclined relative to the length direction of the sealing part 2, it is convenient to blow the airflow into the sealing groove 201 along the inclined direction, thereby helping to blow away the water droplets remaining in the sealing part 2, which is conducive to improving the working efficiency of the drying unit 3013 and facilitating design and implementation.

[0097] In specific implementation, the drying body 30131 is also provided with an air inlet 3016. The air inlet 3016 is connected to an external air supply system through a pipeline. The airflow pumped by the external air supply system first enters the drying chamber through the air inlet 3016 and then is blown to the outside through the air outlet 30132.

[0098] Continue to combine Figures 1 to 5 As shown, in some exemplary embodiments, the blowing direction of the air outlet 30132 is still set to be inclined relative to the length direction of the sealing part 2. For example, in this embodiment, the included angle α between the blowing direction of the air outlet 30132 and the length direction of the sealing part 2 can be between 15-60°.

[0099] It is understandable that by making the angle α between the blowing direction and the length direction of the sealing part 2 between 15-60°, it is beneficial to further improve the working efficiency of the drying unit 3013 and facilitate the design and implementation.

[0100] In specific implementation, the blowing direction of the blowing port 30132 can be set by selecting a blowing port 30132 with an inclined ejection surface, or by using a blowing port 30132 that can blow air at an angle in related technologies. It is only necessary to ensure that it can blow air out at an angle, and will not be elaborated here.

[0101] It is worth noting that, regarding this embodiment, based on the above exemplary implementations, in specific implementation, as a preferred embodiment, it is still... Figures 1 to 5 As shown, it generally includes a base 1, a sealing part 2, and a cleaning mechanism 3.

[0102] The base 1 has multiple mounting plates spaced apart, each mounting plate having a mounting groove adapted to the outer contour of the sealing part 2, and the sealing part 2 is assembled into the mounting groove. The cleaning mechanism 3 includes a cleaning part 301 provided on the base 1 and a drive assembly 302 for driving the cleaning part 301 to approach and clean the sealing part 2.

[0103] The sealing part 2 is provided with a sealing groove 201, which is adapted to the outer contour of the lip 402, and the sealing part 2 is inserted into the sealing groove 201 through the lip 402 to seal the lip 402. The sealing groove 201 is V-shaped, and the sealing part 2 is made of a corrosion-resistant elastic material, with an elastic expansion and contraction of 0.5 mm.

[0104] The drive assembly 302 includes a first drive unit 3021, a second drive unit 3022, and a lifting unit 3023. The first drive unit 3021 is a synchronous belt module equipped with a slide table. The second drive unit 3022 includes a support 5 and a telescopic cylinder. The lifting unit 3023 includes a mounting base 6 and a telescopic cylinder. The cleaning unit 301 includes a base frame 3011 and a cleaning unit 3012 and a drying unit 3013 disposed on the base frame 3011. The base frame 3011 includes a first substrate 30111 and a second substrate 30112 disposed on the first substrate 30111. The cleaning unit 3012 and the drying unit 3013 are both disposed on the second substrate 30112.

[0105] The support 5 is fixedly mounted on the slide table and has a sliding groove. The mounting base 6 has a slider, which slides in the sliding groove of the support 5. The first base plate 30111 has a slider, the mounting base 6 has a sliding groove, and the slider of the first base plate 30111 slides in the sliding groove of the mounting base 6. The drive end of the telescopic cylinder of the second drive unit 3022 is fixedly connected to the mounting base 6, and the drive end of the telescopic cylinder of the lifting unit 3023 is fixedly connected to the first base plate 30111.

[0106] The first drive unit 3021 can drive the second drive unit 3022 to reciprocate along the length of the sealing groove 201, the second drive unit 3022 can drive the lifting unit 3023 to move closer to or further away from the sealing groove 201, and the lifting unit 3023 can drive the cleaning unit 301 to rise or fall relative to the sealing groove 201.

[0107] In the above preferred embodiments, the specific configuration and arrangement of the base 1, sealing part 2, cleaning part 301 and driving component 302, etc., can still be referred to the descriptions in the above exemplary embodiments. Furthermore, in this preferred embodiment, the beneficial effects brought about by the design of the base 1, sealing part 2, cleaning part 301 and driving component 302, etc., can also be referred to the descriptions in the above exemplary embodiments.

[0108] The sealing device for the coating die head in this embodiment adopts the above design. By sealing the lip 402 of the coating die head 4, the drying rate of the solution at the lip 402 can be slowed down, thereby reducing the amount of solution used for timed liquid discharge. At the same time, the solution remaining in the sealing part 2 can be cleaned after the lip 402 is sealed by the sealing part 2, keeping the sealing part 2 clean and facilitating its subsequent use. Through the cooperation of the sealing part 2 and the cleaning part 301, the lip 402 of the coating die head 4 can be sealed, reducing the amount of solution used for timed liquid discharge during the standby operation of the die head, and keeping the sealing part 2 clean, which is conducive to the subsequent use of the sealing part 2.

[0109] The above descriptions are merely some embodiments of this application and are not intended to limit this application. The technical features or structures in the foregoing different embodiments can be arbitrarily combined to form other specific technical solutions as needed. For those skilled in the art, this application can have various modifications and variations. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the scope of protection of the claims of this application.

Claims

1. A sealing device for a coating die head, characterized in that: It includes a base (1), a sealing part (2) and a cleaning mechanism (3) provided on the base (1), wherein the sealing part (2) is used to seal the lip (402) of the coating die head; The cleaning mechanism (3) includes a cleaning part (301) disposed on the base (1) and a drive assembly (302) for driving the cleaning part (301) to approach and clean the sealing part (2).

2. The sealing device for a coating die head according to claim 1, characterized in that: The sealing part (2) is provided with a sealing groove (201) adapted to the outer contour of the lip (402). The sealing part (2) is inserted into the sealing groove (201) through the lip (402) to seal the lip (402).

3. The sealing device for a coating die head according to claim 2, characterized in that: The drive assembly (302) includes a first drive part (3021) disposed on the base (1) and a second drive part (3022) disposed at the drive end of the first drive part (3021), and the cleaning part (301) is disposed on the drive end of the second drive part (3022). The second drive unit (3022) can drive the cleaning unit (301) to move closer to or further away from the sealing part (2), and the first drive unit (3021) can drive the second drive unit (3022) to reciprocate along the length direction of the sealing part (2) so that the cleaning unit (301) completely cleans the sealing groove (201).

4. The sealing device for a coating die head according to claim 3, characterized in that: The second drive unit (3022) has a lifting unit (3023) at its drive end. The cleaning unit (301) is located on the lifting end of the lifting unit (3023). The lifting unit (3023) can drive the cleaning unit (301) to rise or fall.

5. The sealing device for a coating die head according to claim 4, characterized in that: At least one of the first drive unit (3021), the second drive unit (3022), and the lifting unit (3023) adopts a linear module.

6. The sealing device for a coating die head according to claim 3, characterized in that: The cleaning unit (301) includes a base frame (3011) disposed on the drive end of the second drive unit (3022), and a cleaning unit (3012) and a drying unit (3013) disposed on the base frame (3011). The cleaning unit (3012) is used to clean the sealing groove (201), and the drying unit (3013) is used to dry the sealing groove (201).

7. The sealing device for a coating die head according to claim 6, characterized in that: The drying unit (3013) includes a drying body (30131) having a drying chamber, and an air blowing port (30132) provided on the drying body (30131) and communicating with the drying chamber. The air blowing direction of the air blowing port (30132) is inclined relative to the length direction of the sealing part (2).

8. The sealing device for a coating die head according to claim 7, characterized in that: The angle α between the blowing direction of the air inlet (30132) and the length direction of the sealing part (2) is between 15 and 60°.

9. The sealing device for a coating die head according to any one of claims 2 to 8, characterized in that: The sealing part (2) is made of a corrosion-resistant elastic material.

10. The sealing device for a coating die head according to claim 9, characterized in that: The elastic expansion and contraction of the sealing part (2) is between 0.1 and 0.5 mm.

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