Drying oven tuyere of coating machine
By tilting the air outlet in the air nozzle of the coater oven and setting a buffer plate at the air outlet, the problem of uneven heating of the substrate is solved, and uniform heating and efficient drying of the substrate is achieved.
Patent Information
- Application Number
- CN202421695014.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-17
- Publication Date
- 2025-07-25
- Estimated Expiration
- 2034-07-17
AI Technical Summary
The existing coating machine oven airtip structure causes uneven heating of the substrate and low drying rate and effect.
A coater oven air nozzle is designed, using an inclined air outlet, and a buffer plate is set at the air outlet. Multiple ventilation holes are provided along the length direction on both sides of the buffer plate. The aperture and quantity are determined according to the conditions of the slurry and substrate to ensure uniform distribution of the air flow.
The uniformity of heat receiving of substrates is achieved, and the drying effect and efficiency are improved.
Smart Images
Figure CN223145205U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of coating machines, in particular to an air nozzle for an oven of a coating machine. Background Art
[0002] Coating is a process of coating a slurry on the surface of a substrate and then drying and winding the substrate with the slurry-coated surface. In the prior art, a coating machine is usually used to coat a slurry on a substrate (such as a battery electrode sheet), and then the substrate is sent into one or more ovens to dry the slurry. Generally, a plurality of air nozzles are arranged in the oven to blow air onto the surface of the substrate to accelerate the drying of the slurry. There are air nozzles in the oven to blow air onto the substrate. The structural form, air outlet speed, air volume, air outlet direction, air return mode, etc. of the air nozzles will have a great influence on the drying rate and drying effect. The air nozzles currently in use generally have an air outlet direction perpendicular to the substrate, resulting in uneven air flow at different positions of the substrate, uneven heating, and low drying rate and drying effect. Summary of the Utility Model
[0003] To solve the technical problems in the background art, the utility model proposes an air nozzle for an oven of a coating machine.
[0004] An air nozzle for an oven of a coating machine proposed by the utility model includes an inclined air outlet, a buffer plate is arranged at the air outlet, and a plurality of sections of ventilation holes are arranged on both sides of the buffer plate along its length direction. Each section of ventilation holes includes at least one row of ventilation holes, and the size and number of each section of ventilation holes are determined according to the situation of the slurry and the substrate.
[0005] Make the air flow blowing to different positions of the substrate (such as a lithium battery electrode sheet) more uniform, ensure the uniformity of heating of the substrate, and thus improve the drying effect.
[0006] Preferably, it includes an outer shell and an inner shell. The gap between the inner side of the outer shell and the inner shell forms two air outlets. The buffer plate fixes the lower end of the inner shell, and the ventilation holes are located at the lower end of the gap between the inner side of the outer shell and the inner shell.
[0007] Preferably, three sections of ventilation holes with the same length are arranged on both sides of the buffer plate along its length direction, namely the first-stage holes near the first end, the second-stage holes in the middle, and the third-stage holes near the second end. The first-stage holes are provided with two rows of ventilation holes, the second-stage holes are provided with three rows of ventilation holes, and the third-stage holes are provided with two rows of ventilation holes.
[0008] Ventilation holes are opened on both sides of the buffer plate. After being buffered by the buffer plate, the hot air blown out from the air outlet is uniform, the pressure is uniform, the electrode sheet floats stably, and the drying effect is good.
[0009] Preferably, the outer housing has a U-shaped structure. At the upper opening of the U-shaped structure, there is a chamfer structure I that inclines inward. The inner housing is in a closed state and is arranged at the opening of the U-shaped structure of the outer housing. At both ends of the upper end of the inner housing, there are chamfer structures II at the corners. The gap between the chamfer structure I and the chamfer structure II forms the inclined air outlet.
[0010] The air outlet directions of the air outlets on both sides are both acute angles with the base material, making the airflows blowing to different positions of the base material (such as lithium battery electrode sheets) more uniform, ensuring the uniformity of heat received by the base material, and thus improving the drying effect.
[0011] Preferably, there are a plurality of return air holes at the upper end of the inner housing.
[0012] Preferably, the middle part of the buffer plate is welded to the lower end of the inner housing.
[0013] Preferably, the buffer plate is a square plate, and both sides of the buffer plate have bent portions, and the two bent portions respectively abut against the two side walls of the outer housing.
[0014] It can strengthen the connection strength between the inner housing and the outer housing and improve the structural stability of the air nozzle.
[0015] In summary, the present utility model has the following beneficial effects: Through the inclined air outlet, a buffer plate is arranged at the air outlet, and a plurality of ventilation holes with inconsistent quantities and sizes are arranged on the buffer plate, making the airflows blowing to different positions of the base material (such as lithium battery electrode sheets) more uniform, ensuring the uniformity of heat received by the base material, and thus improving the drying effect.
[0016] The additional aspects and advantages of the present utility model will be partially given in the following description, partially will become obvious from the following description, or will be understood through the practice of the present utility model. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] Figure 1 is a cross-sectional view of the air nozzle according to an embodiment of the present utility model;
[0018] Figure 2 is a top view of the air nozzle according to an embodiment of the present utility model;
[0019] Figure 3 is a structural diagram of the air nozzle according to an embodiment of the present utility model;
[0020] Figure 4 is a structural diagram of the buffer plate according to an embodiment of the present utility model;
[0021] Figure 5 is an internal structural diagram of the air nozzle according to an embodiment of the present utility model.
[0022] In the figure:
[0023] 1. Outer housing; 2. Inner housing; 3. Buffer plate; 4. Air outlet; 5. First-stage hole; 6. Second-stage hole; 7. Third-stage hole; 8. Chamfer structure I; 9. Chamfer structure II; 10. Return air hole; 11. Bent part. Detailed implementation manner
[0024] The embodiments of the present utility model will be described in detail below. The examples of the embodiments are shown in the drawings, in which the same or similar symbols represent the same or similar elements or elements with the same or similar functions from beginning to end. The embodiments described below with reference to the drawings are exemplary and are only used to explain the present utility model and should not be construed as a limitation to the present utility model.
[0025] As Figures 1-5 shown, a nozzle for the drying oven of a coating machine proposed in this embodiment includes an obliquely arranged air outlet 4. A buffer plate 3 is provided at the air outlet 4. Multiple sections of ventilation holes are provided on both sides of the buffer plate 3 along its length direction. Each section of ventilation holes includes at least one row of ventilation holes. The size and quantity of each section of ventilation holes are determined according to the situation of the slurry and the substrate.
[0026] In this way, through the obliquely arranged air outlet 4, a buffer plate 3 is provided at the air outlet 4, and multiple sections of ventilation holes with inconsistent quantities and sizes are provided on the buffer plate 3, so that the airflows blowing to different positions of the substrate (such as the lithium battery electrode sheet) are more uniform, ensuring the uniformity of the substrate's heat absorption, and thus improving the drying effect.
[0027] Furthermore, as Figure 1 shown, it includes an outer housing 1 and an inner housing 2. The gap between the inner side of the outer housing 1 and the inner housing 2 forms two air outlets 4. The buffer plate 3 fixes the lower end of the inner housing 2, and the ventilation holes are located at the lower end of the gap between the inner side of the outer housing 1 and the inner housing 2. Specifically, the middle of the buffer plate 3 is welded to the lower end of the inner housing.
[0028] Still further, the outer housing 1 has a U-shaped structure. An inwardly inclined chamfer structure I 8 is provided at the upper opening of the U-shaped structure. The inner housing 2 is in a closed state and is arranged at the opening of the U-shaped structure of the outer housing 1. Chamfer structures II 9 are provided at both corners of the upper end of the inner housing 2. The gap between the chamfer structure I 8 and the chamfer structure II 9 forms an obliquely arranged air outlet 4. The air outlet directions of the two air outlets 4 on both sides are both acute angles with the substrate. As Figure 2 shown, ventilation holes are opened on both sides of the buffer plate 3. After being buffered by the buffer plate 3, the hot air blown out from the air outlet 4 is uniform, the pressure is uniform, the electrode sheet floats stably, and the drying effect is good.
[0029] In one of the embodiments, as Figure 4As shown, three sections of ventilation holes with the same length are provided along the length direction on both sides of the buffer plate 3, namely the first-stage holes 5 near the first end, the second-stage holes 6 in the middle, and the third-stage holes 7 near the second end. The first-stage holes 5 are provided with two rows of ventilation holes, the second-stage holes 6 are provided with three rows of ventilation holes, and the third-stage holes 7 are provided with two rows of ventilation holes.
[0030] It should be noted that Figure 4 the distance arrangement and ventilation hole arrangement in
[0031] are one of the implementation manners, and mainly designed according to the actual situation.
[0032] Preferably, the buffer plate 3 is set as a square plate, and both sides of the buffer plate 3 are respectively provided with bending parts 11, and the two bending parts 11 respectively abut against the two side walls of the outer shell. This can strengthen the connection strength between the inner shell 2 and the outer shell 1 and improve the structural stability of the air nozzle.
[0033] It should be noted that, as Figure 2 shown, a plurality of return air holes 10 are provided at the upper end of the inner shell 2.
[0034] It should be understood that the orientation or positional relationship 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. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention 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 cannot be understood as a limitation to the present invention.
[0035] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one of such features. In the description of the present invention, the meaning of "a plurality" is at least two, such as two, three, etc., unless otherwise specifically defined.
[0036] In the present utility model, unless otherwise clearly defined or limited, terms such as "installed", "connected", "coupled", "fixed", etc. shall be construed in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection, an electrical connection, or communicable with each other; it may be directly connected, or indirectly connected through an intermediate medium, and may be the internal communication of two components or the interaction relationship between two components, unless otherwise clearly defined. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.
[0037] In the present utility model, unless otherwise clearly defined or limited, 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 indirectly in 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 first feature has a higher horizontal height than the second feature. The first feature being "under", "below" and "beneath" the second feature may be that the first feature is directly below or obliquely below the second feature, or merely indicates that the first feature has a lower horizontal height than the second feature.
[0038] The above is only the preferred specific embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present utility model, according to the technical solution and the inventive concept of the present utility model, makes equivalent substitutions or changes, should be covered by the protection scope of the present utility model.
Claims
1. A coating machine oven air nozzle, characterized in that, It includes an inclined air outlet, a buffer plate is provided at the air outlet, and multiple sections of ventilation holes are provided on both sides of the buffer plate along its length direction. Each section of ventilation holes includes at least one row of ventilation holes. The size and quantity of each section of ventilation holes are determined according to the situation of the slurry and the substrate. The oven nozzle further includes an outer shell and an inner shell. The gap between the inner side of the outer shell and the inner shell forms two air outlets. The buffer plate fixes the lower end of the inner shell, and the ventilation holes are located at the lower end of the gap between the inner side of the outer shell and the inner shell; three sections of ventilation holes with the same length are provided on both sides of the buffer plate along its length direction, namely the first-stage holes near the first end, the second-stage holes in the middle, and the third-stage holes near the second end. The first-stage holes are provided with two rows of ventilation holes, the second-stage holes are provided with three rows of ventilation holes, and the third-stage holes are provided with two rows of ventilation holes.
2. The coating machine oven air nozzle according to claim 1, wherein The outer shell has a U-shaped structure, and a chamfer structure I inclined inward is provided at the upper opening of the U-shaped structure. The inner shell is in a closed state and is arranged at the opening of the U-shaped structure of the outer shell. Chamfer structures II are provided at both corners at the upper end of the inner shell. The gap between the chamfer structure I and the chamfer structure II forms the inclined air outlet.
3. The coating machine oven air nozzle according to claim 2, characterized in that, A plurality of return air holes are provided at the upper end of the inner shell.
4. The coating machine oven air nozzle according to claim 1, wherein The middle part of the buffer plate is welded to the lower end of the inner shell.
5. The coating machine oven air nozzle according to claim 1, characterized in that, The buffer plate is set as a square plate, and bending parts are respectively provided on both sides of the buffer plate. The two bending parts respectively abut against the two side walls of the outer shell.