Coating assembly and coating machine

Abstract

The application discloses a coating assembly and a coating machine, the coating assembly comprises: a coating head, the coating head is provided with a coating opening and a feeding channel communicating with the coating opening; the gasket is arranged in the feeding channel, and a flow dividing space communicated with the coating opening is jointly defined between the gasket and the coating head; the flow guide parts are arranged on the gasket, the flow guide parts are arranged in the flow dividing space at intervals, the flow guide parts are suitable for dividing fluid passing through the flow dividing space in the width direction of the flow guide parts, the thickness of a coating can be improved, and the product performance of a coated object is improved.

Description

Technical Field

[0001] The present application relates to the technical field of coating equipment, and in particular to a coating component and a coating machine. Background Art

[0002] One challenge facing coaters in practical operation is the impact of the limited volume of the coater manifold on the uniformity of the coating fluid. Due to the compact design of the coater manifold, its limited volume makes it difficult to ensure stable lateral distribution of the fluid. This results in a phenomenon where the coating film becomes abnormally thick near the fluid inlet, in the center of the coating head, creating a so-called "center pile-up" phenomenon. In contrast, the coating edge areas further away from the inlet appear thinner, resulting in uneven coating thickness, which seriously affects the product's appearance and performance. Utility Model Content

[0003] The present application aims to solve at least one of the technical problems existing in the prior art. To this end, the present application proposes a coating assembly that can improve the coating thickness and enhance the product performance of the coated object.

[0004] The present application also proposes a coating machine having the above coating component.

[0005] According to an embodiment of the present application, the coating assembly includes: a coating head, which is provided with a coating port and a feeding channel connected to the coating port; a gasket, which is arranged in the feeding channel and the gasket and the coating head jointly define a diversion space connected to the coating port; a guide part, which is arranged on the gasket and is constructed as a plurality of guide parts arranged at intervals in the diversion space, and the plurality of guide parts are suitable for diverting the fluid passing through the diversion space in the width direction of the guide part.

[0006] According to the coating assembly of the embodiment of the present application, a diversion space connected to the coating port is defined within the feed channel between the gasket and the coating head, and multiple spaced guides are provided within the space, so that the fluid is effectively diverted in the width direction of the guide. According to the coating machine of the present application, due to the provision of the coating head assembly of the above embodiment, uniform coating can be achieved during the coating process, avoiding the phenomenon of local over-thickness or over-thinness, improving the coating uniformity, and improving the product performance of the coated object.

[0007] According to the coating assembly of some embodiments of the present application, at least a portion of the width of each of the guide portions in the extension direction gradually decreases in a direction approaching the coating port.

[0008] According to the coating assembly of some embodiments of the present application, the guide portion includes: a base segment, which is connected to the gasket and has a width that gradually decreases in the width direction of the guide portion (3); and a guide segment, which is connected to the base segment and extends in a direction close to the coating port and has a uniform width in the extension direction.

[0009] According to the coating assembly of some embodiments of the present application, the width of the end of the base segment is consistent with the width of the starting end of the guide segment.

[0010] According to the coating assembly of some embodiments of the present application, the gasket is provided with a feed port connected to the feed channel and located on the upstream side of the feed channel, and the width of two adjacent guide sections close to the feed port in the width direction is greater than the width of the guide section away from the feed port.

[0011] According to the coating assembly of some embodiments of the present application, the width of each of the guide portions gradually decreases in a direction approaching the coating port.

[0012] According to the coating assembly of some embodiments of the present application, a feed port connected to the feeding channel is provided on the gasket, and the feed port is provided in the middle of the gasket, or a plurality of the feed ports are spaced apart along the width direction in the diversion space.

[0013] According to the coating assembly of some embodiments of the present application, the gasket includes: a bearing part: the bearing part is arranged in the feeding channel and the feed port is formed on the bearing part, and a plurality of the guide parts are arranged on the bearing part; a limiting part: the limiting part is constructed in two and is respectively arranged at both ends of the bearing part, and the two limiting parts extend in a direction close to the coating port; wherein, the two limiting parts and the bearing part define the diversion space.

[0014] According to the coating assembly of some embodiments of the present application, the two guide portions adjacent to the two ends of the supporting portion extend away from each other and tilted.

[0015] The following briefly describes a coating machine according to an embodiment of the present application.

[0016] The coating machine according to the embodiment of the present application is provided with the coating assembly of the above embodiment, and a diversion space connected to the coating port is defined in the feed channel by a gasket, and multiple spaced guides are provided in the space, so that the fluid is effectively diverted in the extension direction of the coating port. According to the coating machine of the present application, since the convex head assembly of the above embodiment is provided, it can be evenly coated during the coating process, avoiding the phenomenon of local over-thickness or over-thinness, improving the coating uniformity, improving the product performance of the coated object, and optimizing the coating effect of the entire machine.

[0017] Additional aspects and advantages of the present application will be given in part in the description below, and in part will become obvious from the description below, or will be learned through practice of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The above and / or additional aspects and advantages of the present application will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0019] Figure 1 is a schematic structural diagram of a coating assembly according to an embodiment of the present application;

[0020] Figure 2 1 is a schematic structural diagram of the connection between the gasket and the feed port in the coating assembly according to an embodiment of the present application;

[0021] Figure 3 1 is a schematic structural diagram of a gasket in a coating assembly according to an embodiment of the present application;

[0022] Figure 4 1 is a schematic structural diagram of a gasket in a coating assembly according to one embodiment of the present application;

[0023] Figure 5 is a schematic structural diagram of a gasket in a coating assembly according to another embodiment of the present application;

[0024] Figure 6 This is a schematic structural diagram of a gasket in a coating assembly according to another embodiment of the present application.

[0025] Reference numerals:

[0026] 100. Coating components;

[0027] 1. Coating head; 11. Coating port; 12. Feeding channel; 13. Feed port;

[0028] 2. Gasket; 21. Diversion space; 22. Load-bearing part; 23. Limiting part;

[0029] 3. Guide part; 31. Base section; 32. Guide section. DETAILED DESCRIPTION

[0030] The following describes in detail embodiments of the present application. 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 only used to explain the present application and are not to be construed as limiting the present application.

[0031] Reference below Figures 1-6The coating assembly 100 according to an embodiment of the present application is described. The coating assembly 100 includes a coating head 1, a gasket 2 and a guide portion 3. The coating head 1 is provided with a coating port 11 and a feeding channel 12 connected to the coating port 11. The gasket 2 is arranged in the feeding channel 12 and the gasket 2 and the coating head 1 jointly define a diversion space 21 connected to the coating port 11. The guide portion 3 is arranged on the gasket 2 and the guide portion 3 is constructed to be multiple and spaced apart in the diversion space 21. The multiple guide portions 3 are suitable for diverting the fluid passing through the diversion space 21 in the width direction of the guide portion 3.

[0032] like Figure 1 As shown, specifically, the coating assembly 100 includes a coating head 1, a gasket 2 and a guide portion 3. The coating head 1 can be provided with a coating port 11 and a feeding channel 12 connected to the coating port 11. The fluid can pass through the feeding channel 12 and contact the substrate through the coating port 11. The gasket 2 can be arranged in the feeding channel 12 and the gasket 2 and the coating head 1 jointly define a diversion space 21 connected to the coating port 11. The gasket 2 is arranged in the feeding channel 12 so that the fluid is guided when flowing through the gasket 2 so that the flow direction of the fluid is limited to the diversion space 21. The diversion space 21 also plays a role in buffering the fluid medium, which helps to reduce the flow velocity fluctuation of the fluid medium in the feeding channel 12 and improve the stability of the coating process.

[0033] Furthermore, in the coating assembly 100, the fluid first passes through the gasket 2 and then through the feed channel 12, and finally is coated on the object to be coated through the coating port 11. Before entering the coating port 11, the fluid is guided by multiple guide portions 3 arranged at intervals on the gasket 2 and distributed to different flow paths, so that the fluid is dispersed into multiple small streams before reaching the coating port 11, thereby diverting the fluid in the width direction of the guide portion 3. The structure in which the guide portion 3 is provided on the gasket 2 and the guide portion 3 is configured as a plurality of guide portions arranged at intervals within the diversion space 21 helps to ensure that the fluid can be diverted by the guide portion 3 during the coating process, avoiding the phenomenon of local excessive thickness or excessive thinness, thereby improving the coating uniformity and improving the product performance of the coated object.

[0034] It should be noted that the coating assembly 100 can also adapt to the coating requirements of fluids of different types, viscosities, and fluidities by flexibly adjusting parameters such as the number, shape, and spacing of the flow guides 3 and the size of the gaskets 2. This adaptability enables the assembly to be widely used in various coating processes, such as printing, spraying, and coating, thereby improving the versatility and production efficiency of the equipment.

[0035] In short, according to the coating assembly 100 of the embodiment of the present application, the gasket 2 and the coating head 1 together define a diversion space 21 in communication with the coating port 11 within the feed channel 12, and multiple spaced guides 3 are provided within the space, so that the fluid is effectively diverted in the width direction of the guides 3. According to the coating machine of the present application, since the coating assembly 100 of the above embodiment is provided, uniform coating can be achieved during the coating process, avoiding the phenomenon of local over-thickness or over-thinness, thereby improving coating uniformity.

[0036] In some embodiments of the present application, at least a portion of the width of each guide portion 3 in the extension direction may gradually decrease in a direction approaching the coating port 11 .

[0037] like Figure 4-Figure 6 As shown, at least part of the width of each guide portion 3 in the extension direction can be gradually reduced in the direction close to the coating port 11. Optionally, the width of the guide portion 3 can be gradually reduced in the starting section, and the width of the end of the guide portion 3 remains unchanged. Alternatively, the entire width of the guide portion 3 can be gradually reduced in the direction close to the coating port 11, and the shape of the gradually reducing portion can be conical or curved.

[0038] It can be understood that the gradual reduction in the width of each guide portion 3 in the extension direction can guide the fluid to flow along the gradually widening channel. As the fluid flows through the guide portion 3, the flow path of the fluid is limited to multiple small streams by the gradual reduction in the width of the guide portion 3, which reduces the deviation and diffusion of the fluid during the flow process, which means that the fluid will be subject to a gradually enhanced guiding effect during the flow process; at the same time, the gradual reduction in the width of the guide portion 3 causes the local flow velocity to accelerate, maintaining the laminar state of the fluid flow, and the laminar fluid is more stable during the coating process, reducing the uneven coating phenomenon caused by fluid fluctuations, which helps to improve the smoothness and quality of the coating layer.

[0039] In some embodiments of the present application, the guide portion 3 includes a base segment 31 and a guide segment 32. The base segment 31 is connected to the gasket 2 and the width of the guide portion 3 can be gradually reduced. The guide segment 32 is connected to the base segment 31 and the guide segment 32 extends in the direction close to the coating port 11 and the width of the guide segment 32 in the extension direction is consistent.

[0040] like Figure 4-Figure 6As shown, it can be understood that the base segment 31 serves as the starting portion of the guide portion 3. The base segment 31 is connected to the gasket 2, and the guide segment 32 follows the base segment 31. The guide segment 32 extends in a direction close to the coating port 11 and maintains a consistent width throughout its entire extension. The gradually decreasing width of the base segment 31 causes the fluid to be subjected to a gradually increasing guiding force as it flows through the base segment 31, flowing along the gradually widening channel toward the coating port 11. This reduces fluid deflection and diffusion during flow, ensuring that the fluid is divided into several streams. At the same time, it reduces the deviation and diffusion of the fluid during the flow process, and improves the accuracy and consistency of the coating. The uniform width of the guide section 32 causes the fluid in the guide section 32 to no longer gather, but further limits and guides the fluid that just flowed out of the collective section. The diversion effect is affected by the width of the guide section 32. The larger the width, the more fluid on both sides of the diversion. The uniform width of the guide section 32 avoids the influence of flow rate changes or fluid fluctuations on fluid distribution, forming a uniform and stable fluid layer after the fluid flows out of the guide part 3, providing a fluid distribution basis for the subsequent coating process. The guiding effect of the base section 31 ensures that the fluid has been preliminarily distributed before entering the guide section 32. The uniform width structure of the guide section 32 further maintains the stability of the fluid flowing through the guide section 32.

[0041] In some embodiments of the present application, the width of the end of the base segment 31 is consistent with the width of the starting end of the guide segment 32 .

[0042] like Figure 4-Figure 6 As shown, it can be understood that the width of the end of base section 31 is consistent with that of the starting end of guide section 32. This allows the fluid to smoothly transition to guide section 32 after flowing through base section 31, without experiencing a sudden change in width. In the transition region, the fluid does not experience sudden changes in velocity or direction due to width variations, maintaining a continuous flow path. This reduces flow resistance caused by width variations, fluid fluctuations, and the formation of vortices, resulting in more stable fluid flow within guide section 32. Stable fluid flow helps form a uniform and smooth coating layer, improving the coating process.

[0043] In some embodiments of the present application, a feed port 13 connected to the feed channel 12 and located on the upstream side of the feed channel 12 may be provided on the gasket 2, and the width of two adjacent guide sections 32 close to the feed port 13 in the width direction of the gasket may be greater than the width of the guide section 32 away from the feed port 13.

[0044] like Figure 2 and Figure 5As shown, it can be understood that when the fluid enters the guide section 32 from the feed port 13, multiple guide sections 32 are arranged in the direction of the wide part of the gasket. Since the width of the guide section 32 near the feed port 13 is larger, the fluid is significantly guided by the guide section 32, which causes most of the fluid to be diverted to the side away from the feed port 13 and causes the flow beam between the two adjacent guide sections 3 to be smaller. As the fluid flows in the direction away from the feed port 13, the width of the guide section 32 gradually decreases, the guiding effect of the guide section 32 on the fluid is weakened, and the flow beam between the two adjacent guide sections 32 increases accordingly. However, at this time, the fluid has been preliminarily dispersed and homogenized at the wider guide section 32 near the feed port 13. Therefore, the flow beam at the wider guide section 32 near the feed port 13 and the flow beam at the smaller guide section 32 away from the feed port 13 will be relatively equal in size. Therefore, the fluid can be evenly distributed in the diversion space 21, which helps to form a more uniform and consistent coating layer.

[0045] In some embodiments of the present application, the width of each guide portion 3 gradually decreases in a direction approaching the coating port 11 .

[0046] The direction close to the coating port 11 refers to the direction in which the fluid flows in the feeding channel 12 and eventually reaches the coating port 11 for coating.

[0047] like Figure 6 As shown, it is understandable that, further, the width of each guide portion 3 can also gradually decrease in the direction approaching the coating port 11. As the width of the guide portion 3 gradually decreases, the fluid will undergo a gradual diversion process during the flow process. This design helps ensure that the fluid is fully dispersed and evenly distributed before reaching the coating port 11, thereby reducing the uneven thickness or streaking that may occur during the coating process. It helps to reduce local accumulation and eddy currents of the fluid within the guide portion 3, making the fluid flow more stable and orderly.

[0048] In some embodiments of the present application, a feed port 13 communicating with the feed channel 12 is provided on the gasket 2 , and the feed port 13 is provided in the middle of the gasket 2 , or a plurality of feed ports 13 are provided at intervals in the width direction of the diversion space 21 .

[0049] like Figure 2 As shown, it can be understood that when the feed port 13 is located in the middle of the gasket 2, the fluid enters the feed channel 12 from the center. The design of the flow guide 3 allows the fluid to be evenly diverted to both sides, helping to achieve uniform fluid distribution across the entire coating width. By using multiple feed ports 13 spaced apart along the width, fluid can be introduced simultaneously at multiple locations, further enhancing the uniformity of fluid distribution. This design is suitable for wide-width coating and can effectively reduce unevenness in fluid delivery.

[0050] In some embodiments of the present application, the gasket 2 includes a bearing portion 22 and a limiting portion 23. The bearing portion 22 can be arranged in the feeding channel 12 and a feed port 13 is formed on the bearing portion 22. A plurality of guide portions 3 can be provided on the bearing portion 22. The limiting portion 23 is constructed as two and is respectively arranged at both ends of the bearing portion 22. The two limiting portions 23 extend in a direction close to the coating port 11. The two limiting portions 23 and the bearing portion 22 define a diversion space 21.

[0051] like Figure 2-Figure 6 As shown, it can be understood that the bearing portion 22 is the main structural part of the gasket 2, which is arranged in the feed channel 12 and is responsible for supporting and carrying the flow of the fluid during the coating process. The design of the bearing portion 22 needs to be strong enough to withstand the pressure and impact force of the fluid. The feed port 13 formed on the bearing portion 22 is the entrance for the fluid to enter the coating system, and the multiple guide portions 3 on the bearing portion 22 are responsible for guiding the fluid from the feed port 13 to the coating area. These guide portions 3 ensure that the fluid can be evenly distributed during the coating process through precise diversion and guiding effects; the limiting portion 23 is constructed in two, respectively arranged at both ends of the bearing portion 22, and extending in the direction close to the coating port 11. Their main function is to define the diversion space 21 together with the bearing portion 22, that is, the area where the fluid is diverted and guided before coating. The size and shape of this space have an important influence on the coating effect.

[0052] In some embodiments of the present application, two guide portions 3 adjacent to two ends of the supporting portion 22 extend away from each other and obliquely.

[0053] like Figure 6 As shown, it can be understood that when the fluid enters the supporting portion 22 from the feed port 13, its initial pressure will be concentrated near the feed port 13, and the fluid will be dispersed to a wider area after entering the guide portion 3. By making the two guide portions 3 extend away from each other and tilted, the fluid will gradually disperse to a wider area during the flow process, which helps to further disperse the fluid to both sides of the supporting portion 22, so that the fluid is more evenly diverted in the diversion space 21, and the two guide portions 3 extending away from each other and tilted are arranged at both ends of the adjacent supporting portion 22. The fluid diverted to the two ends of the supporting portion 22 is further dispersed to the two ends of the supporting portion 22 through the two supporting portions 22 that are arranged away from each other, which helps to reduce the accumulation of fluid in local areas.

[0054] The following briefly describes a coating machine according to an embodiment of the present application.

[0055] The coating machine according to the embodiment of the present application is provided with the coating assembly 100 of the above embodiment. According to the coating assembly 100 of the embodiment of the present application, a diversion space 21 communicating with the coating port 11 is defined in the feed channel 12 by the gasket 2, and a plurality of spaced guide portions 3 are provided in the space, so that the fluid is effectively diverted in the extension direction of the coating port 11. According to the coating machine of the present application, since the coating assembly 100 of the above embodiment is provided, uniform coating can be achieved during the coating process, avoiding the phenomenon of local over-thickness or over-thinness, improving the coating uniformity, and optimizing the coating effect of the entire machine.

[0056] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying 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 therefore cannot be understood as a limitation on the present application. In addition, features defined as "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present application, unless otherwise specified, "multiple" means two or more.

[0057] In the description of this application, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; and internal connections between two components. Those skilled in the art will understand the specific meanings of the above terms in this application based on the specific circumstances.

[0058] 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 the embodiment or example are included in at least one embodiment or example of the present 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 any one or more embodiments or examples.

[0059] Although the embodiments of the present application 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 intent of the present application, and that the scope of the present application is defined by the claims and their equivalents.

Claims

1. A coating component, characterized in that: include: A coating head (1), the coating head (1) being provided with a coating port (11) and a feeding channel (12) communicating with the coating port (11); A gasket (2), the gasket (2) being arranged in the feeding channel (12) and the gasket (2) and the coating head jointly defining a diversion space (21) communicating with the coating port (11); A flow guide portion (3), the flow guide portion (3) being provided on the gasket (2) and being configured as a plurality of flow guide portions (3) spaced apart in the diversion space (21), the plurality of flow guide portions (3) being adapted to divert the fluid passing through the diversion space (21) in a width direction of the flow guide portion (3); Wherein, the guide portion (3) comprises: a base section (31), the base section (31) being connected to the gasket (2) and having a width gradually decreasing in the width direction of the guide portion (3); A guide section (32), the guide section (32) being connected to the base section (31) and extending in a direction close to the coating port (11), and each guide section (32) having a uniform width; The gasket (2) is provided with a feed port (13) which is in communication with the feed channel (12) and is located on the upstream side of the feed channel (12); the width of the guide section (32) close to the feed port (13) in a direction perpendicular to the coating direction is greater than the width of the guide portion (3) away from the feed port (13).

2. The coating assembly according to claim 1, characterized in that At least part of the width of each guide portion (3) in the extension direction gradually decreases in a direction approaching the coating port (11).

3. The coating assembly according to claim 1, characterized in that The width of the end of the base section (31) is consistent with the width of the starting end of the guide section (32).

4. The coating assembly according to claim 2, characterized in that The width of each of the guide portions (3) gradually decreases in a direction approaching the coating port (11).

5. The coating assembly according to claim 4, characterized in that The gasket (2) is provided with a feed port (13) connected to the feed channel (12), and the feed port (13) is provided in the middle of the gasket (2), or a plurality of the feed ports (13) are provided at intervals along the width direction in the diversion space (21).

6. The coating assembly according to claim 5, characterized in that The gasket (2) comprises: Carrying part (22): the carrying part (22) is arranged in the feeding channel (12) and the feeding port (13) is formed on the carrying part (22), and a plurality of the guide parts (3) are arranged on the carrying part (22); Limiting portion (23): the limiting portion (23) is constructed as two and is respectively arranged at the two ends of the bearing portion (22), and the two limiting portions (23) extend in a direction close to the coating port (11); The two limiting portions (23) and the bearing portion (22) define the diversion space (21).

7. The coating assembly according to claim 6, characterized in that The two guide portions (3) adjacent to the two ends of the bearing portion (22) extend obliquely away from each other.

8. A coating machine, characterized in that: include: The coating assembly (100) according to any one of claims 1 to 7.

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