Coating equipment

Abstract

The utility model discloses coating equipment, relates to the technical field of coating, the coating equipment includes: coating device, base material back-up roll and distributor, coating device and base material back-up roll are arranged opposite to each other, the end of coating device facing the base material back-up roll is provided with coating mouth, the distributor is provided with the base material back-up roll, the base material back-up roll is provided with the base material back-up roll, and the base material back-up roll is provided with the base material back-up roll. The coating device is used for coating the surface of a base material with a coating, the base material supporting roller is used for supporting the base material, the distributor is located on the downstream side of the coating device in the coating direction of the coating device, and the spacing distance between the distributor and the base material is smaller than the spacing distance between the coating opening and the base material. According to the coating equipment disclosed by the embodiment of the invention, the distributor can guide the coating on the surface of the base material to flow from a position with relatively high resistance to a position with relatively low resistance, so that local accumulation of the coating can be avoided, the coating meets design requirements, the quality of the coating is favorably improved, and the yield of the coating is high.

Description

Technical Field

[0001] The utility model relates to the technical field of coating, in particular to a coating device. Background Art

[0002] In the related art, when coating a substrate with existing coating equipment, the coating is prone to local accumulation, resulting in poor coating quality and low coating yield. Utility Model Content

[0003] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, one purpose of the present invention is to provide a coating device that can avoid local accumulation of coating, make the coating meet the design requirements, help improve the coating quality, and make the coating yield rate high.

[0004] According to an embodiment of the present invention, the coating equipment includes: a coating device, a substrate support roller and a dispenser, the coating device and the substrate support roller are arranged opposite to each other, the coating device is formed with a coating port at the end facing the substrate support roller, the coating device is used to apply a coating to the surface of the substrate, the substrate support roller is used to support the substrate, and along the coating direction of the coating device, the dispenser is located on the downstream side of the coating device, and the spacing distance between the dispenser and the substrate is smaller than the spacing distance between the coating port and the substrate.

[0005] According to the coating equipment of the embodiment of the present application, the distributor can guide the coating on the surface of the substrate to flow from a position with greater resistance to a position with less resistance, thereby avoiding local accumulation of the coating, making the coating meet the design requirements, and being conducive to improving the coating quality and achieving a high coating yield.

[0006] According to some embodiments of the present invention, there are a plurality of dispensers, and the plurality of dispensers are sequentially spaced apart along the coating direction of the coating device.

[0007] According to some embodiments of the present invention, the number of the dispensers is greater than or equal to three, and along the coating direction of the coating device, the interval between two adjacent dispensers gradually decreases.

[0008] According to some embodiments of the present invention, a plurality of the distributors are arranged in parallel with each other.

[0009] According to some embodiments of the present invention, the dispenser includes: a dispenser body, the dispenser body is configured as a columnar structure, and the dispenser body extends along the axial direction of the substrate supporting roller.

[0010] According to some embodiments of the present invention, the distributor further includes: a plurality of annular bosses, the plurality of annular bosses are arranged on the peripheral wall of the distributor body, and each of the annular bosses extends along the circumference of the distributor body, and the plurality of annular bosses are arranged in sequence along the axial direction of the distributor body.

[0011] According to some embodiments of the present invention, the plurality of annular bosses are parallel to each other.

[0012] According to some embodiments of the present invention, the distributor body is a cylindrical structure; or the cross-sectional area of ​​the distributor body gradually increases from one end to the other end of the distributor body.

[0013] According to some embodiments of the present invention, the distributor body includes a plurality of columnar segments connected in sequence, and at least two of the columnar segments have different cross-sectional areas.

[0014] According to some embodiments of the present invention, the distributor further includes: a connecting shaft, and the connecting shaft is provided at both ends of the distributor body.

[0015] Additional aspects and advantages of the present invention will be given in part in the following description and will become apparent from the following description or learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The above and / or additional aspects and advantages of the present invention will become apparent and readily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0017] Figure 1 is a schematic diagram of a coating device according to an embodiment of the present application;

[0018] Figure 2 is a cross-sectional view of a dispenser according to an embodiment of the present application;

[0019] Figure 3 is a cross-sectional view of another dispenser according to an embodiment of the present application;

[0020] Figure 4 is a cross-sectional view of another dispenser according to an embodiment of the present application;

[0021] Figure 5 is a cross-sectional view of another dispenser according to an embodiment of the present application.

[0022] Reference numerals:

[0023] Coating equipment 1, substrate 2, coating 3,

[0024] Coating device 10, coating port 11,

[0025] substrate supporting roller 20,

[0026] Distributor 30, distributor body 31, annular boss 311, columnar segment 312, connecting shaft 32,

[0027] Drying chamber 40. DETAILED DESCRIPTION

[0028] The following describes embodiments of the present invention in detail. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended only to explain the present invention and are not to be construed as limiting the present invention.

[0029] Reference below Figure 1-Figure 5 The coating device 1 according to an embodiment of the present invention is described. The coating device 1 can coat a coating 3 on a substrate 2. The coating 3 just coated on the substrate 2 can be a fluid with fluidity, and the coating 3 can form a thin film.

[0030] According to the coating device 1 of the embodiment of the present invention, Figure 1 As shown, the coating apparatus 1 may include: a coating device 10, a substrate support roller 20 and a dispenser 30. The coating device 10 and the substrate support roller 20 are arranged opposite to each other. A coating port 11 is formed at the end of the coating device 10 facing the substrate support roller 20. The coating device 10 is used to apply a coating 3 to the surface of the substrate 2. The substrate support roller 20 is used to support the substrate 2. Along the coating direction of the coating device 10, the dispenser 30 is located on the downstream side of the coating device 10. The spacing distance between the dispenser 30 and the substrate 2 is smaller than the spacing distance between the coating port 11 and the substrate 2.

[0031] It should be noted that when coating a substrate with existing coating equipment, the coating is prone to local accumulation, resulting in low coating quality and low coating yield.

[0032] Based on this, the present application embodiment proposes a coating device 1, such as Figure 1 As shown, the coating device 10 contains liquid coating (i.e., fluid coating), and the coating device 10 and the substrate support roller 20 are arranged relative to each other. The end of the coating device 10 facing the substrate support roller 20 can be formed with a coating port 11, and the fluid coating can flow out through the coating port 11. The coating device 10 can apply the fluid coating to the surface of the substrate 2, thereby forming a coating 3 on the surface of the substrate 2. At this time, the coating 3 is a fluid with fluidity. The substrate support roller 20 can be used to support the substrate 2. The substrate support roller 20 can be constructed as a cylindrical structure with a circular cross-section. There can be multiple substrate support rollers 20, and the multiple substrate support rollers 20 can all be located on the same side of the substrate 2. The multiple substrate support rollers 20 can all support the substrate 2.

[0033] As an example, the multiple substrate support rollers 20 are all rotatable, and the multiple substrate support rollers 20 rotate in the same direction. The multiple substrate support rollers 20 rotate simultaneously, thereby driving the substrate 2 to move, and the coating device 10 is fixed, thereby achieving relative movement between the substrate 2 and the coating device 10, so that the coating device 10 can apply the coating layer 3 on the substrate 2. As another example, the multiple substrate support rollers 20 are all fixed, and the coating device 10 is movable. The coating device 10 can move along the extension direction of the substrate 2, and the distance between the coating device 10 and the substrate 2 remains unchanged, so that the coating device 10 can achieve the effect of applying the coating layer 3 on the substrate 2.

[0034] As another example, multiple substrate support rollers 20 can rotate, and multiple substrate support rollers 20 rotate simultaneously to drive the substrate 2 to move, and the coating device 10 can move. The moving directions of the substrate 2 and the coating device 10 are opposite, thereby achieving the effect of relative movement of the substrate 2 and the coating device 10.

[0035] Along the coating direction of the coating apparatus 10, the dispenser 30 is located on the downstream side of the coating apparatus 10. The dispenser 30 may extend axially along the substrate support roller 20. The length of the dispenser 30 may be equal to or greater than the width of the coating 3. Taking the movement of the substrate 2 as an example, along the coating direction of the coating apparatus 10, when the fluid coating flows from the coating port 11 onto the substrate 2, the substrate 2 moves with the fluid coating, moving toward the downstream side of the coating apparatus 10. The substrate 2 not coated with the coating 3 is located on the upstream side of the coating apparatus 10. The dispenser 30 is spaced apart from the substrate 2. The distance between the dispenser 30 and the substrate 2 is less than the distance between the coating port 11 and the substrate 2. The distance between the dispenser 30 and the substrate 2 is less than the thickness of the coating 3. The dispenser 30 partially contacts the coating 3, or the dispenser 30 is immersed in the coating 3. The distributor 30 exerts a certain amount of resistance on the coating 3. The deeper the distributor 30 is immersed in the coating 3, the greater the resistance it exerts on the coating 3. The distributor 30 can guide the coating 3 on the surface of the substrate 2 from locations with greater resistance to locations with less resistance. It can also cause the coating 3 to flow axially along the substrate support roller 20. In other words, it can cause the coating 3 to flow along the width of the substrate 2. This can prevent localized accumulation of the coating 3, ensure that the coating 3 meets design requirements, improve the quality of the coating 3, and increase the coating yield rate.

[0036] It should be noted that the upstream and downstream mentioned in this application are defined according to the coating direction of the coating device 10. Generally, along the coating direction of the coating device 10, the position where the coating device 10 first applies the fluid coating is "downstream" relative to the position where the fluid coating is applied later, and the position where the coating device 10 applies the fluid coating later is "upstream".

[0037] As an example, Figure 1 As shown, a drying chamber 40 may be provided on the downstream side of the distributor 30 , and the drying chamber 40 may solidify the fluid coating on the coating layer 3 so that the surface of the substrate 2 is covered with a thin film that meets the coating requirements.

[0038] In some embodiments of the present invention, Figure 1 As shown, there are a plurality of dispensers 30 , and the plurality of dispensers 30 are sequentially spaced apart along the coating direction of the coating device 10 .

[0039] The multiple distributors 30 all extend axially along the substrate support roller 20. The multiple distributors 30 can have the same structure. The multiple distributors 30 are sequentially spaced along the coating direction of the coating device 10, and the multiple distributors 30 are all located on the downstream side of the coating device 10. By providing multiple distributors 30, the efficiency of the fluid on the coating 3 flowing from a location with greater resistance relative to the distributor 30 to a location with less resistance relative to the distributor 30 can be improved, and the probability of localized accumulation of the coating 3 can be further reduced, which is conducive to improving the coating quality and achieving a high coating yield. It can also reduce dead corners of the fluid coating on the substrate 2, ensuring that all areas of the substrate 2 where the coating 3 is to be applied are covered by the fluid coating.

[0040] In some embodiments of the present invention, the number of the dispensers 30 is greater than or equal to three, and along the coating direction of the coating device 10 , the interval between two adjacent dispensers 30 gradually decreases.

[0041] There can be at least three dispensers 30. Along the coating direction of the coating device 10, the distance between two adjacent dispensers 30 gradually decreases, that is, the closer the two adjacent dispensers 30 are to the coating device 10, the smaller the distance between them. This is conducive to the fluid coating just coated on the substrate 2 being pushed away by the dispenser 30 in time, so that the fluid coating can flow from the position with greater resistance to the position with less resistance in time, thereby further reducing the risk of local accumulation of the coating 3, and is more conducive to ensuring the integrity and yield of the coating 3.

[0042] In some embodiments of the present invention, Figure 1 As shown, a plurality of distributors 30 are arranged parallel to each other.

[0043] Multiple dispensers 30 arranged in parallel can achieve the same guiding effect on the fluid coating, reducing mutual interference in the fluid coating flow, which helps improve the stability of the fluid coating flow. Furthermore, multiple dispensers 30 arranged in parallel can improve the reliability and fault tolerance of the coating device 1. If one dispenser 30 fails, the other dispensers 30 can continue to operate.

[0044] In some embodiments of the present invention, Figure 2-Figure 5As shown, the dispenser 30 may include a dispenser body 31 , which is configured as a columnar structure and extends along the axial direction of the substrate supporting roller 20 .

[0045] The dispenser body 31 can be configured as a columnar structure and extend axially along the substrate support roller 20, that is, along the width of the substrate 2. When the dispenser body 31 is immersed in the coating 3, the columnar structure of the dispenser body 31 increases the contact area between the fluid coating and the dispenser body 31, thereby improving the efficiency of the dispenser 30 in guiding the fluid coating along the extension direction of the dispenser body 31 (that is, along the axial direction of the substrate support roller 20), allowing the fluid coating to flow along the width of the substrate 2, thereby improving the coverage of the fluid coating on the substrate 2. When the dispenser body 31 extends axially along the substrate support roller 20, the length of the dispenser 30 can be minimized while ensuring that the dispenser 30 can cover the entire width of the coating 3, which helps reduce the production cost of the dispenser 30.

[0046] In some embodiments of the present invention, Figure 2 As shown, the distributor 30 may further include: a plurality of annular bosses 311, the plurality of annular bosses 311 are arranged on the peripheral wall of the distributor body 31, and each annular boss 311 extends along the circumference of the distributor body 31, and the plurality of annular bosses 311 are arranged in sequence along the axial direction of the distributor body 31.

[0047] The outer peripheral wall of the dispenser body 31 may be formed with a plurality of annular bosses 311. Each of the bosses 311 protrudes radially from the dispenser body 31. Each boss 311 extends circumferentially along the dispenser body 31. The bosses 311 are spaced apart axially along the dispenser body 31, and the spacing between any two adjacent bosses 311 may be uniform. The provision of multiple annular bosses 311 improves the flow conductivity of the dispenser 30, facilitating increased flow velocity of the fluid coating along the extension direction of the dispenser body 31, allowing the fluid coating to quickly cover the surface of the substrate 2, thereby ensuring that the coating 3 meets the design requirements.

[0048] In some embodiments of the present invention, Figure 2 As shown, the plurality of annular bosses 311 are parallel to each other.

[0049] By providing a plurality of mutually parallel annular bosses 311 , the fluid coating can flow at the same or substantially the same speed on the surface of the substrate 2 along the extending direction of the dispenser body 31 , thereby reducing the risk of vortex formation in the coating 3 .

[0050] In some embodiments of the present invention, Figure 3 As shown, the distributor body 31 is a cylindrical structure.

[0051] The dispenser body 31 can be constructed as a cylindrical structure with a circular cross-section. This cylindrical structure reduces resistance when the dispenser 30 pushes the fluid coating to flow, improving the efficiency of the dispenser 30 in guiding the fluid coating flow and ensuring a uniform thickness of the coating 3. Furthermore, the cylindrical structure of the dispenser body 31 offers a smooth surface, making it easy to clean and maintain, thereby extending the service life of the dispenser 30. By varying the diameter of the dispenser body 31, the dimensions of the dispenser 30 can be adjusted, allowing the dispenser 30 to adapt to different fluid characteristics and improving the versatility of the coating apparatus 1.

[0052] In some embodiments of the present invention, Figure 4 As shown in FIG. 1 , the cross-sectional area of ​​the distributor body 31 gradually increases from one end to the other end of the distributor body 31 .

[0053] The dispenser body 31 can extend axially along the substrate support roller 20. The outer surface of the dispenser body 31 can be configured as a smooth, continuous surface, or even a truncated cone structure. The distance between the dispenser 30 and the surface of the substrate 2 gradually decreases from one end to the other end of the dispenser body 31. The fluid coating can flow from the end where the distance between the dispenser 30 and the surface of the substrate 2 is smaller to the end where the distance between the dispenser 30 and the surface of the substrate 2 is larger. The dispenser 30 guides the flow of the fluid coating, forming a coating 3 on the substrate 2 with a thickness that gradually decreases from one end to the other, allowing the coating 3 to meet specific design requirements.

[0054] In some embodiments of the present invention, Figure 5 As shown, the distributor body 31 may include a plurality of columnar segments 312 connected in sequence, and at least two columnar segments 312 have different cross-sectional areas.

[0055] A plurality of columnar segments 312 are sequentially connected along the axial direction of the substrate support roller 20. The plurality of sequentially connected columnar segments 312 can be integrally formed, thereby making the surface of the dispenser body 31 continuous and reducing the resistance of the dispenser 30 to the fluid coating. The cross-sectional areas of at least two columnar segments 312 are different. As an example, the cross-sectional areas of any two adjacent columnar segments 312 are different. As another example, the cross-sectional areas of at least two columnar segments 312 are different, and the cross-sectional areas of at least two columnar segments 312 are the same. Along the width direction of the substrate 2, at least two portions of the coating 3 with different thicknesses can be formed on the surface of the substrate 2, so that the coating 3 can meet specific design requirements.

[0056] In some embodiments of the present invention, Figure 2-Figure 5 As shown, the distributor 30 may further include: a connecting shaft 32 , and a connecting shaft 32 is provided at both ends of the distributor body 31 .

[0057] Along the axial direction of the dispenser 30 (i.e., the axial direction of the substrate support roller 20), connecting shafts 32 are provided at both ends of the dispenser body 31. The connecting shafts 32 extend along the axial direction of the dispenser 30. The two connecting shafts 32 can be integrally formed with the dispenser body 31. The dispenser 30 can be connected to the coating device 1 via the connecting shafts 32. When the coating device 10 is fixed, the substrate support roller 20 rotates, and the substrate 2 moves relative to the coating device 10, the connecting shafts 32 can be connected to the coating device 1 by means of a snap connection, a bolt connection, etc., thereby achieving a fixed connection between the dispenser 30 and the coating device 1. The fluid coating moves relative to the dispenser 30 under the influence of the substrate 2, thereby achieving the effect of the dispenser 30 guiding the flow of the fluid coating. When the substrate support roller 20 is fixed and the coating device 10 moves relative to the substrate 2, multiple distributors 30 can be connected into one through the corresponding connecting shafts 32, multiple distributors 30 can be connected to the coating device 10, and multiple distributors 30 can be constructed as an integral structure with the coating device 10. Multiple distributors 30 can move relative to the substrate 2 under the drive of the coating device 10, thereby achieving the effect of the distributor 30 guiding the flow of fluid coating.

[0058] Other structures and operations of the coating device 1 according to the embodiment of the present invention are known to those skilled in the art and will not be described in detail here.

[0059] Throughout this specification, reference to terms such as "one embodiment," "some embodiments," "illustrative embodiments," "examples," "specific examples," or "some examples" means that the specific features, structures, materials, or characteristics described in conjunction with that embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the illustrative use of the above terms does not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0060] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and purpose of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A coating device, characterized in that, include: A coating device (10) and a substrate support roller (20), wherein the coating device (10) and the substrate support roller (20) are arranged opposite to each other, a coating port (11) is formed at the end of the coating device (10) facing the substrate support roller (20), the coating device (10) is used to apply a coating layer (3) to the surface of a substrate (2), and the substrate support roller (20) is used to support the substrate (2); A distributor (30) is located on the downstream side of the coating device (10) along the coating direction of the coating device (10), and the spacing distance between the distributor (30) and the substrate (2) is smaller than the spacing distance between the coating port (11) and the substrate (2).

2. The coating device according to claim 1, characterized in that There are a plurality of dispensers (30), and the plurality of dispensers (30) are sequentially spaced apart along the coating direction of the coating device (10).

3. The coating device according to claim 2, characterized in that There are more than or equal to three of the distributors (30), and along the coating direction of the coating device (10), the spacing between two adjacent distributors (30) gradually decreases.

4. The coating device according to claim 2, characterized in that A plurality of the distributors (30) are arranged in parallel with each other.

5. The coating device according to any one of claims 1 to 4, characterized in that: The dispenser (30) includes a dispenser body (31), the dispenser body (31) is configured as a columnar structure, and the dispenser body (31) extends along the axial direction of the substrate supporting roller (20).

6. The coating device according to claim 5, characterized in that The distributor (30) further comprises: a plurality of annular bosses (311), wherein the plurality of annular bosses (311) are arranged on the peripheral wall of the distributor body (31), and each of the annular bosses (311) extends along the circumference of the distributor body (31), and the plurality of annular bosses (311) are arranged in sequence and spaced apart along the axial direction of the distributor body (31).

7. The coating device according to claim 6, characterized in that The plurality of annular bosses (311) are parallel to each other.

8. The coating device according to claim 5, characterized in that The dispenser body (31) is a cylindrical structure; or The cross-sectional area of ​​the distributor body (31) gradually increases from one end to the other end of the distributor body (31).

9. The coating device according to claim 5, characterized in that The distributor body (31) comprises a plurality of columnar segments (312) connected in sequence, and at least two of the columnar segments (312) have different cross-sectional areas.

10. The coating device according to claim 5, characterized in that The distributor (30) further comprises a connecting shaft (32), and both ends of the distributor body (31) are provided with the connecting shaft (32).

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