Sponge roller structure, equipment and preparation method of sponge roller structure
By setting the sponge layer and rod body into a split structure, and performing surface treatment and removing dense layer, the problem that the existing sponge roller structure is difficult to perform sponge layer surface treatment, achieving the purpose of efficient cleaning and simplicity of operation.
Patent Information
- Application Number
- CN202510178019.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-18
- Publication Date
- 2025-05-30
- Estimated Expiration
- Not applicable · inactive patent
AI Technical Summary
The current sponge roller structure is integrated molding, making it difficult to perform surface treatment of the sponge layer, which affects cleaning efficiency and convenient operation.
The sponge layer and rod body are arranged in a split structure, allowing the sponge layer to be surface-treated independently, and the dense layer is removed by grinding to improve cleaning force.
The sponge layer is used to efficiently clean the surface of the target workpiece, improve cleaning force, and simplify the replacement and operation of the sponge roller structure.
Smart Images
Figure CN120056349A_ABST
Abstract
Description
Technical Field
[0001] This application relates to the technical field of sponge rollers, and particularly to a sponge roller structure, equipment, and a preparation method of the sponge roller structure. Background Art
[0002] The sponge roller cleaning technology is widely used in multiple industries, especially in semiconductor manufacturing, printed circuit board production, optical lens processing, and other fields that require high-precision cleaning. In the process of semiconductor and electronics manufacturing, surface cleanliness is crucial for product quality. Tiny particles, dust, or other contaminants may cause circuit short circuits or other defects. Therefore, sponge rollers can be used to clean products.
[0003] Among them, the sponge in the sponge roller usually has good elasticity and water absorption. It can effectively capture and remove tiny particles on the product surface without damaging the product surface. Considering the contact area and pressure distribution between the sponge roller and the surface of the product to be cleaned during the cleaning process can improve the product cleaning efficiency and reduce the wear on the product surface. The sponge roller is used in combination with a specific cleaning liquid to enhance the cleaning effect. The cleaning liquid can help dissolve or suspend contaminants, making them easier to be captured by the sponge roller.
[0004] However, in the current sponge rollers, the sponge roller is usually an integrally formed structure, and the sponge is directly prepared into a cylindrical structure through a mold. Although this method is convenient for the preparation of the sponge roller, it is not easy to perform surface treatment on the sponge before cleaning the product surface, which has certain defects and is not convenient for people to operate. Summary of the Invention
[0005] This application provides a sponge roller structure, equipment, and a preparation method of the sponge roller structure. The sponge layer and the rod body are set as a split structure, which is convenient for surface treatment of the sponge layer, and then convenient for the sponge layer to clean the surface of the target workpiece, improving the cleaning force on the workpiece surface, and also achieving the purpose of quick replacement and easy operation of the sponge roller structure.
[0006] To achieve the above object, this application provides the following technical solutions:
[0007] The first aspect of this application provides a preparation method of a sponge roller structure, and the preparation method includes:
[0008] Providing sponge raw materials and a mold;
[0009] Pouring the sponge raw materials into the mold and injecting plastic into the mold to make the sponge raw materials form a sponge layer;
[0010] Demolding the sponge layer from the mold;
[0011] The surface of the sponge layer is ground in a grinding device to eliminate the dense layer on the surface of the sponge layer;
[0012] The ground sponge layer is coated on the rod body to form a sponge roller structure.
[0013] Based on the above technical solution, the present application can also be improved as follows.
[0014] In a possible implementation, a mold is provided, including:
[0015] Provide a mold with several cylindrical grooves;
[0016] Pour the sponge raw material into the mold, including:
[0017] Pour the sponge raw material into several cylindrical grooves of the mold.
[0018] In a possible implementation, grinding the surface of the sponge layer in a grinding device includes:
[0019] Perform grinding wheel grinding treatment on the surface of the sponge layer;
[0020] Alternatively, perform cutting treatment on the surface of the sponge layer.
[0021] In a possible implementation, after grinding the surface of the sponge layer in a grinding device, it further includes:
[0022] Detect the surface of the sponge layer through a microscope to observe the surface roughness of the sponge layer.
[0023] The second aspect of the present application provides a sponge roller structure, including:
[0024] A rod body;
[0025] A sponge layer, the sponge layer is coated on the outer peripheral side of the rod body, and several convex portions are provided on one surface of the sponge layer, and the several convex portions are evenly distributed on the sponge layer;
[0026] The sponge layer and the rod body are of a split structure.
[0027] In a possible implementation, the rod body has a hollow cavity;
[0028] Fluid is located in the hollow cavity and flows out towards the sponge layer.
[0029] In a possible implementation, several parallel and spaced gaps are provided on the rod body;
[0030] The gaps are communicated with the hollow cavity to form a fluid channel, and the fluid located in the hollow cavity flows along the fluid channel towards the sponge layer.
[0031] In a possible implementation, a plurality of through holes are formed in the sponge layer;
[0032] The through holes communicate with the fluid channels, and the fluid flows through the through holes along the fluid channels and flows out of the sponge layer.
[0033] In a possible implementation, the convex portions protrude from the surface of the sponge layer facing away from the rod body.
[0034] The third aspect of the present application provides a device including at least one of the above-mentioned sponge roller structures.
[0035] The present application provides a sponge roller structure, a device, and a preparation method of the sponge roller structure. The preparation method includes: providing a sponge raw material and a mold; pouring the sponge raw material into the mold and injecting into the mold to form the sponge raw material into a sponge layer; demolding the sponge layer from the mold; grinding the surface of the sponge layer in a grinding device to eliminate the dense layer on the surface of the sponge layer; covering the ground sponge layer on the rod body to form a sponge roller structure. The sponge roller structure includes a rod body and a sponge layer. Among them, the sponge layer is covered on the outer peripheral side of the rod body, and a plurality of convex portions are provided on the surface of the sponge layer facing away from the rod body, and the plurality of convex portions are evenly distributed on the sponge layer. The sponge layer and the rod body are of a split structure. The device includes at least one of the above-mentioned sponge roller structures. In this way, the sponge roller structure provided by the present application can set the sponge layer and the rod body as a split structure, which is convenient for surface treatment of the sponge layer, and then convenient for the sponge layer to clean the surface of the target workpiece, improving the cleaning force on the surface of the workpiece, and can also achieve the purpose of rapid replacement and simple operation of the sponge roller structure. BRIEF DESCRIPTION OF THE DRAWINGS
[0036] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required for describing the embodiments of the present application or the prior art. Obviously, the following drawings are only a part of the embodiments of the present application. These drawings and the text description are not intended to limit the scope of the concept of the present application in any way, but to illustrate the concept of the present application to those skilled in the art by referring to specific embodiments. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.
[0037] Figure 1 It is a schematic flow chart of the preparation method of the sponge roller structure provided by an embodiment of the present application;
[0038] Figure 2 It is a schematic structural diagram of the mold in the preparation method of the sponge roller structure provided by an embodiment of the present application;
[0039] Figure 3Structural schematic diagram of the sponge roller structure provided by an embodiment of the present application;
[0040] Figure 4 Structural schematic diagram of the sponge layer of the sponge roller structure provided by an embodiment of the present application;
[0041] Figure 5 Structural schematic diagram of the rod body of the sponge roller structure provided by an embodiment of the present application;
[0042] Figure 6 Cross-sectional schematic diagram of the sponge roller structure provided by an embodiment of the present application.
[0043] Explanation of reference numerals:
[0044] 100 - Sponge roller structure;
[0045] 200 - Rod body; 210 - Hollow cavity; 220 - Gap; 230 - Fluid channel;
[0046] 300 - Sponge layer; 310 - First surface; 320 - Second surface; 321 - Protrusion;
[0047] 400 - Mold; 410 - Groove. Detailed implementation manners
[0048] Next, the technical solutions in the embodiments of the present application will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present application.
[0049] As described in the background art, in the current sponge rollers, the sponge roller is usually an integrally formed structure, and the sponge is directly prepared into a cylindrical structure through a mold. Although this method is convenient for the preparation of the sponge roller, it is not easy to perform surface treatment on the sponge before cleaning the surface of the product, which has certain defects and is not convenient for people to operate.
[0050] In view of the above technical problems, embodiments of the present application provide a sponge roller structure, a device, and a preparation method of the sponge roller structure. The preparation method includes: providing a sponge raw material and a mold; pouring the sponge raw material into the mold and injecting plastic into the mold to form the sponge raw material into a sponge layer; demolding the sponge layer from the mold; grinding the surface of the sponge layer in a grinding device to eliminate the dense layer on the surface of the sponge layer; and covering the ground sponge layer on a rod body to form the sponge roller structure. The sponge roller structure includes a rod body and a sponge layer. Among them, the sponge layer is covered on the outer peripheral side of the rod body, and a plurality of protrusions are provided on the surface of the sponge layer facing away from the rod body, and the plurality of protrusions are evenly distributed on the sponge layer. The sponge layer and the rod body are of a split structure. The device includes at least one of the above sponge roller structures. In this way, the sponge roller structure provided by the present application can set the sponge layer and the rod body as a split structure, which is convenient for surface treatment of the sponge layer, and thus convenient for the sponge layer to clean the surface of the target workpiece, improving the cleaning force on the surface of the workpiece, and also achieving the purpose of rapid replacement and simple operation of the sponge roller structure.
[0051] In order to make the above objects, features, and advantages of the embodiments of the present application more obvious and understandable, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present application.
[0052] In the related art, the inside of the sponge roller structure can be a hollow structure, and fluid enters the hollow structure and extends outward to the sponge layer, so that the sponge layer remains moist. In the current sponge roller structure, the sponge roller structure is usually an integrally formed structure, and the sponge is directly foamed into a cylindrical structure through a mold. However, the sponge roller structure prepared in this way usually generates a dense layer on the surface of the sponge. Among them, the thickness of the dense layer is dozens to hundreds of microns. It can be understood that the dense layer can block the fluid from flowing out of the hollow structure towards the outside of the sponge layer, so that the dirt cannot be effectively discharged from the surface of the sponge, but adheres to the surface of the sponge. In addition, the existence of the dense layer also makes the sponge layer relatively easy to adhere to dirt, and it is also easy to damage the surface of the product during subsequent product cleaning.
[0053] To solve the above problems, an embodiment of the present application provides a sponge roller structure, a device, and a preparation method of the sponge roller structure. The sponge layer and the rod body are set as a split structure, which is convenient for surface treatment of the sponge layer, and then convenient for the sponge layer to clean the surface of the target workpiece, improving the cleaning force on the workpiece surface, and also achieving the purpose of quick replacement and simple operation of the sponge roller structure. The following will introduce the specific structures of the sponge roller structure and the device provided by the embodiments of the present application, as well as the preparation method of the sponge roller structure with reference to the accompanying drawings.
[0054] Referring to Figure 1 , in the first aspect of the embodiments of the present application, a preparation method of a sponge roller structure 100 is provided. Among them, in combination with Figure 2 and Figure 3 as shown, the preparation method may include providing sponge raw materials and a mold 400, pouring the sponge raw materials into the mold 400, and injecting into the mold 400 to make the sponge raw materials form a sponge layer 300; demolding the sponge layer 300 from the mold 400; grinding the surface of the sponge layer 300 in a grinding device to eliminate the dense layer on the surface of the sponge layer 300; and covering the ground sponge layer 300 on the rod body 200 to form the sponge roller structure 100.
[0055] Figure 1 FIG. Figure 1 as shown, the preparation method of the sponge roller structure 100 provided by the embodiments of the present application includes:
[0056] S101. Provide sponge raw materials and a mold 400.
[0057] In the embodiments of the present application, as Figure 2 shown, providing the mold 400 may include providing a mold 400 with a groove 410. In a possible implementation, the mold 400 may be a rectangular structure, the groove 410 may be a cylindrical structure, and the number of the grooves 410 may be several. The present application does not limit the shapes of the mold 400 and the groove 410 and the number of the grooves 410 here. It can be understood that several cylindrical grooves 410 may be evenly distributed in the mold 400, which is convenient for the sponge raw materials to form in the mold 400.
[0058] S102. Pour the sponge raw materials into the mold 400, and inject into the mold 400 to make the sponge raw materials form a sponge layer 300.
[0059] In an embodiment of the present application, pouring the sponge raw material into the mold 400 may include pouring the sponge raw material into several cylindrical grooves 410 of the mold 400, so that the sponge raw material fills the mold 400. Then, the sponge raw material is laid flat on the surface of the mold 400, and injection molding is performed into the mold 400 so that the sponge raw material is formed into the sponge layer 300. In this way, one side of the sponge raw material has several protruding cylindrical structures, while the other side of the sponge raw material is a flat surface, and the sponge raw material is formed in the mold 400.
[0060] S103. Demold the sponge layer 300 from the mold 400.
[0061] In an embodiment of the present application, the molded sponge layer 300 is demolded from the mold 400. Among them, the demolding method may include manual demolding and mechanical demolding. In a possible implementation manner, manual demolding can utilize the flexibility of the sponge layer 300 itself, and thus the sponge layer 300 is removed from the mold 400 by means of the flexibility of the sponge layer 300. In another possible implementation manner, mechanical demolding can use mechanical tools to remove the sponge layer 300 from the mold 400, and the sponge layer 300 can be removed from the mold 400 by means of grasping or rotating.
[0062] S104. Grind the surface of the sponge layer 300 in a grinding device to eliminate the dense layer on the surface of the sponge layer 300.
[0063] In an embodiment of the present application, the surface of the demolded sponge layer 300 is ground in a grinding device. Among them, the grinding method may include performing grinding wheel grinding treatment on the surface of the sponge layer 300. Or performing cutting treatment on the surface of the sponge layer 300. In a possible implementation manner, using a grinding wheel to physically polish the surface of the sponge layer 300 can remove the dense layer on the surface of the sponge layer 300. In another possible implementation manner, performing cutting treatment on the surface of the sponge layer 300 can also remove the dense layer on the surface of the sponge layer 300, thereby exposing the porous structure inherent in the sponge layer 300. Of course, in some other embodiments, the grinding method may also include using chemical substances to perform surface treatment on the sponge layer 300, thereby changing the surface characteristics of the sponge layer 300. The present application embodiment does not limit the grinding method here.
[0064] In an embodiment of the present application, after grinding the surface of the sponge layer 300 in a grinding device, it may further include detecting the surface of the sponge layer 300 through a microscope to observe the surface roughness of the sponge layer 300. In a possible implementation manner, the surface of the ground sponge layer 300 can be observed through an optical microscope or a scanning electron microscope. Generally speaking, the dense layer on the surface of the sponge layer 300 can be removed by grinding. By observing whether the porous structure on the surface of the sponge layer 300 is exposed, it can be judged whether the dense layer has been removed.
[0065] S105. Wrap the ground sponge layer 300 around the rod 200 to form the sponge roller structure 100.
[0066] In an embodiment of the present application, the ground sponge layer 300 can be wrapped around the rod 200, so that the sponge layer 300 and the rod 200 form an integral body, and then the sponge roller structure 100 is formed. It can be understood that one side of the ground sponge layer 300 has several protruding cylindrical structures, and the other side is a flat structure. Among them, the side of the sponge layer 300 with a flat surface faces the rod 200 for wrapping, so that several protruding cylindrical structures are exposed outside, which is convenient for cleaning the subsequent target workpiece.
[0067] Based on the above preparation method of a sponge roller structure 100, a second aspect of the embodiment of the present application provides a sponge roller structure 100. Refer to Figure 3 , the sponge roller structure 100 may include a rod 200 and a sponge layer 300. It can be understood that the sponge roller structure 100 provided in the embodiment of the present application can be obtained by the above preparation method of the sponge roller structure 100.
[0068] Continue to refer to Figure 3 , in the specific implementation of the embodiment of the present application, among them, the sponge layer 300 can be wrapped around the outer peripheral side of the rod 200, and a number of protruding convex portions 321 are provided on the side of the sponge layer 300 facing away from the rod 200. In a possible implementation manner, the number of the convex portions 321 can be several, and the embodiment of the present application does not limit the number of the convex portions 321 here. The several convex portions 321 can be evenly distributed on the sponge layer 300, so as to facilitate the subsequent cleaning of the surface of the target workpiece.
[0069] Refer to Figure 4, based on the above embodiments, in a possible implementation, the sponge layer 300 can be in a rectangular structure, and the convex portion 321 can be in a cylindrical structure. It can be understood that the convex portion 321 can include but is not limited to all convex structures such as cylindrical shapes. In the embodiments of the present application, the shapes of the sponge layer 300 and the convex portion 321 are not limited herein. In the embodiments of the present application, taking the convex portion 321 as a cylindrical structure as an example, the sponge layer 300 can have a first surface 310 and a second surface 320. Among them, the first surface 310 can be disposed opposite to the second surface 320. The first surface 310 of the sponge layer 300 can be oriented towards the rod body 200, and several convex portions 321 can be located on the second surface 320 of the sponge layer 300.
[0070] Reference Figure 5 , based on the above embodiments, the rod body 200 can have a hollow cavity 210 inside. In a possible implementation, the rod body 200 can be a cylindrical rod body 200. In the embodiments of the present application, the shape of the rod body 200 is not limited herein. In the embodiments of the present application, a fluid can be disposed in the hollow cavity 210 of the rod body 200, and the fluid can flow out towards the sponge layer 300, so that the fluid can clean the surface of the target workpiece.
[0071] Reference Figure 6 , based on the above embodiments, gaps 220 can be formed on the rod body 200. Among them, in a possible implementation, the number of gaps 220 can be several. In the present application, the number of gaps 220 is not limited herein. In the embodiments of the present application, several gaps 220 can be arranged in parallel and at intervals on the rod body 200, and each gap 220 can communicate with the hollow cavity 210. In this way, each gap 220 can form a fluid channel 230 with the hollow cavity 210, so that the fluid located in the hollow cavity 210 can flow along the fluid channel 230 towards the sponge layer 300, and further enable the fluid to ooze out of the sponge layer 300 to clean the surface of the target workpiece.
[0072] Based on the above embodiments, through holes (not shown in the figure) can be formed on the sponge layer 300. Among them, in a possible implementation, the number of through holes can be several. In the present application, the number of through holes is not limited herein. In the embodiments of the present application, each through hole can communicate with the gap 220, and further enable the through hole to communicate with the fluid channel 230. In this way, the fluid located in the hollow cavity 210 can flow along the fluid channel 230, then pass through the through hole, and thus flow out of the sponge layer 300 again to clean the surface of the target workpiece.
[0073] Based on the above embodiments, it can be understood that a dense layer may be generated on the side of the convex portion 321 facing away from the sponge layer 300, thereby blocking the fluid from flowing out towards the outside of the sponge layer 300. By grinding the side of the convex portion 321 with the dense layer, the dense layer on the convex portion 321 can be removed. In this way, when the convex portion 321 is in contact with the surface of the target workpiece, it is convenient to clean the surface of the target workpiece and is not likely to cause damage to the surface of the target workpiece.
[0074] The third aspect of the embodiments of the present application provides a device (not shown in the figure), and the device may include at least one of the above-mentioned sponge roller structures 100.
[0075] Based on the above embodiments, the device provided by the embodiments of the present application can be applied to semiconductor manufacturing. Exemplarily, it can be used for cleaning wafers. Among them, the sponge roller structure 100 can be used in the physical cleaning process of wafers to remove particles and contaminants on the wafer surface by utilizing the flexibility and water absorption characteristics of the sponge layer 300, and will not cause damage to the surface of the wafer. In addition, the sponge roller structure 100 can also be used to remove the residual polishing liquid and debris on the wafer surface, so as to make the wafer surface more flat.
[0076] In the embodiments of the present application, the sponge roller structure 100 provided by the present application can set the sponge layer 300 and the rod body 200 as a split structure, which is convenient for surface treatment of the sponge layer 300, and further convenient for the sponge layer 300 to clean the surface of the target workpiece, improving the cleaning force on the workpiece surface, and can also achieve the purpose of rapid replacement and simple operation of the sponge roller structure 100.
[0077] In this specification, the embodiments or implementation manners are described in a progressive manner. Each embodiment focuses on the differences from other embodiments. The same or similar parts among the various embodiments can be referred to each other.
[0078] It should be noted that phrases such as "in specific implementation", "in some embodiments", "in this embodiment", "exemplarily", etc. mentioned in the specification indicate that the described embodiments may include specific features, structures or characteristics, but not every embodiment necessarily includes the specific features, structures or characteristics. In addition, such phrases do not necessarily refer to the same embodiment. In addition, when combining an embodiment to describe a specific feature, structure or characteristic, it is within the knowledge scope of those skilled in the art to implement such a feature, structure or characteristic in combination with other embodiments, whether explicitly or not.
[0079] Generally, terms should be understood, at least in part, in light of their use in the context. For example, at least in part depending on the context, the term "one or more" as used herein can be used to describe any feature, structure, or characteristic in the sense of a singular meaning, or can be used to describe a combination of features, structures, or characteristics in the sense of a plural meaning. Similarly, at least in part depending on the context, terms such as "a" or "the" can also be understood to convey a singular usage or a plural usage.
[0080] It should be readily understood that the terms "on", "above", and "over" in this disclosure should be construed in the broadest manner such that "on" not only means "directly on something", but also includes the meaning of "on something" with intervening features or layers therebetween, and "above" or "over" not only includes the meaning of "above" or "over something", but can also include the meaning of "above" or "over something" with no intervening features or layers therebetween (i.e., directly on something).
[0081] In addition, spatial relative terms may be used herein for ease of description, such as "below", "beneath", "under", "above", "over", etc., to describe the relationship of one element or feature to another element or feature as shown in the figures. Spatial relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation shown in the figures. The device may have other orientations (rotated 90 degrees or at other orientations), and the spatial relative descriptors used herein may be interpreted accordingly.
[0082] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present application, and are not intended to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements on some or all of the technical features; and these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present application.
Claims
1. A method for preparing a sponge roller structure, characterized in that: The preparation method comprises: Provide sponge raw materials and molds; Pouring the sponge raw material into the mold, and injecting into the mold to form the sponge raw material into a sponge layer; Demolding the sponge layer from the mold; Grinding the surface of the sponge layer in a grinding device to eliminate the dense layer on the surface of the sponge layer; The ground sponge layer is coated on the rod body to form a sponge roller structure.
2. The method for preparing the sponge roller structure according to claim 1, characterized in that: The mold provided comprises: Providing a mold having a plurality of grooves; The step of pouring the sponge raw material into the mold comprises: The sponge raw material is poured into the plurality of grooves of the mold.
3. The method for preparing the sponge roller structure according to claim 2, characterized in that: The step of grinding the surface of the sponge layer in a grinding device comprises: Performing grinding wheel grinding on the surface of the sponge layer; Alternatively, a cutting treatment is performed on the surface of the sponge layer.
4. The method for preparing the sponge roller structure according to claim 3, characterized in that: After grinding the surface of the sponge layer in a grinding device, the method further comprises: The surface of the sponge layer is inspected by a microscope to observe the surface roughness of the sponge layer.
5. A sponge roller structure, characterized in that: include: Rod body; A sponge layer, the sponge layer is coated on the outer peripheral side of the rod body, and a plurality of protrusions are provided on one side of the sponge layer, and the plurality of protrusions are evenly distributed on the sponge layer; The sponge layer and the rod body are split structures.
6. The sponge roller structure according to claim 5, characterized in that: The rod body has a hollow cavity; The fluid is located in the hollow cavity and flows out toward the sponge layer.
7. The sponge roller structure according to claim 6, characterized in that: The rod body is provided with a plurality of parallel and spaced gaps; The gap is connected to the hollow cavity to form a fluid channel, and the fluid in the hollow cavity flows toward the sponge layer along the fluid channel.
8. The sponge roller structure according to claim 7, characterized in that: The sponge layer is provided with a plurality of through holes; The through hole is connected to the fluid channel, and the fluid passes through the through hole along the fluid channel and flows out of the sponge layer.
9. The sponge roller structure according to any one of claims 5 to 8, characterized in that: The convex portion is protrudingly arranged on a side of the sponge layer facing away from the rod body.
10. A device, characterized in that: The invention comprises at least one sponge roller structure according to any one of claims 5 to 9.