Macromolecule dip coating equipment

Abstract

The utility model relates to the technical field of coating equipment, in particular to macromolecule dipping coating equipment which comprises a dipping tank, conveying rollers, dipping mechanisms and heating rollers, the conveying rollers are installed above the two ends of the dipping tank, the dipping mechanisms are installed in the middle of the dipping tank in an array mode, and the heating rollers are installed on the dipping mechanisms. A temperature rising roller used for drying materials is installed above the right end of the dipping tank, the dipping mechanism drives an adsorption roller and a spraying roller to rotate synchronously through transportation of the materials, rotation of the spraying roller enables a fan-shaped block to move outwards under the action of centrifugal force, and then an inlet, leading to a spraying pipe, of a flowing tank is opened. And the rotation of the adsorption roller can also drive the spiral sheet in the adsorption roller to suck the liquid in the dipping tank and convey the liquid into the flowing tank.

Description

TECHNICAL FIELD

[0001] The utility model relates to coating equipment technical field, concretely relates to a kind of high polymer impregnation coating equipment. BACKGROUND

[0002] The working principle of coating equipment is mainly based on advanced mechanical transmission system and precise control system. Through rotation, movement and other actions, the coating head uniformly coats liquid material on the surface of the object. At the same time, the control system can accurately control the key parameters such as coating speed, pressure and temperature, to ensure the uniformity and quality of the coating.

[0003] During the impregnation process, if the material is not fully penetrated by the impregnating agent, the impregnated layer may be insufficient in thickness or unevenly distributed. The impregnating agent cannot effectively adhere to the surface of the material or penetrate into its interior, which affects the impregnation effect. This incomplete impregnation may result in substandard product performance, specifically reduced strength, hardness and wear resistance. Uneven impregnation may also cause quality problems such as cracking and peeling during product use. Due to poor impregnation effect, it may be necessary to increase the number of impregnation times or extend the impregnation time, which undoubtedly increases production costs. More seriously, incomplete impregnation may also lead to an increase in product scrap rate, further increasing production costs.

[0004] In view of the above situation, in order to overcome the above technical problems, the utility model designs a kind of high polymer impregnation coating equipment, solves the above technical problems. CONTENT OF THE UTILITY MODEL

[0005] The technical purpose to be achieved by the utility model is: the utility model drives the synchronous rotation of the adsorption roller and the spray roller, the rotation of the spray roller promotes the outward movement of the sector block due to centrifugal force, thereby opening the flow groove inlet leading to the spray pipe. At the same time, the rotation of the adsorption roller also drives the internal spiral blade to suck and transport the liquid in the impregnation tank to the flow groove, and the material can be coated further during the suction of the liquid.

[0006] In order to achieve the above technical purpose, the utility model provides the following technical scheme:

[0007] The utility model provides a kind of high polymer impregnation coating equipment, including impregnation tank, conveying roller, impregnation mechanism and temperature rise roller, the conveying roller is installed at the top of the both ends of the impregnation tank, the impregnation mechanism is installed with array in the middle position of the impregnation tank, the temperature rise roller for drying material is installed at the top of the right end of the impregnation tank, the impregnation mechanism drives the synchronous rotation of the adsorption roller and the spray roller by the transportation of material, the rotation of the spray roller promotes the outward movement of the sector block due to centrifugal force, thereby opening the flow groove inlet leading to the spray pipe, and the rotation of the adsorption roller also drives the internal spiral blade to suck and transport the liquid in the impregnation tank to the flow groove.

[0008] The device automatically drives the suction roller and the spraying roller to rotate synchronously through the transportation of materials, without the need for an additional power source, thereby improving the overall work efficiency and reducing energy consumption. The rotation of the spraying roller automatically opens the flow groove inlet leading to the spraying pipe by using centrifugal force, thereby achieving on-demand liquid supply. The spiral blade design inside the suction roller can efficiently suck and transport the liquid in the immersion groove to the flow groove, thereby ensuring continuous supply and uniform distribution of the coating liquid. The synchronous rotation of the spraying roller and the suction roller, combined with the liquid in the holes of the spraying roller and the suction roller, achieves uniform coating of the material, thereby improving the coating quality and product consistency.

[0009] The immersion mechanism comprises support rods, a spraying roller, a suction roller, and a flow groove. The two sides of the inner side of the immersion groove are provided with support rods. The cross-sectional shape of the support rod is L-shaped, and one side of the support rod is tightly attached to the inside of the immersion groove. The spraying roller and the suction roller are installed between the two ends of the support rod. The spraying roller is installed at the upper end of the support rod, and the suction roller is installed at the lower end of the support rod. The flow groove is provided in the support rod and connected to the spraying roller and the suction roller.

[0010] The support rod adopts an L-shaped cross-sectional design and is tightly attached to the inside of the immersion groove, thereby providing a stable support structure and ensuring the stability and reliability of the spraying roller and the suction roller during operation. The flow groove is directly connected to the spraying roller and the suction roller, thereby ensuring smooth flow and on-demand supply of the liquid. The spraying roller opens the flow groove inlet by rotating, while the suction roller sucks the liquid into the flow groove through the spiral blade inside it, thereby improving the flow efficiency of the liquid. The synchronous rotation of the spraying roller and the suction roller, combined with the liquid sprayed from the holes of the spraying roller and the suction of and transportation of the liquid by the suction roller, achieves uniform coating of the material, thereby improving the quality and consistency of the product.

[0011] A rotating fan is installed inside the flow groove. The rotating fan is connected to a rotating shaft, the side surface of the rotating shaft is provided with a sealing cylinder, the other end of the rotating shaft is provided with a motor, the lower side of the motor is provided with a support plate, and the support plate is fixed to the side surface of the immersion groove.

[0012] The installation of the rotating fan promotes the flow of liquid inside the flow channel, helping the liquid to be more smoothly sucked from the adsorption roller and transported to the spraying roller. This enhanced flow helps to ensure uniform distribution and efficient use of the liquid. By driving the rotating fan to rotate through the motor, the circulation and spraying process of the liquid can be accelerated, thereby improving the coating efficiency. Faster coating speed means higher productivity and lower unit cost. The sealing cylinder installed on the side of the rotating shaft helps to prevent liquid leakage from the rotating shaft, ensuring the sealing performance of the entire dipping mechanism. The design of the limiting spring and the fan-shaped block increases the complexity of the spraying roller structure, but at the same time, it also improves its durability and reliability. The limiting spring can absorb part of the impact force, reduce the wear between the fan-shaped block and the limiting ring, and prolong the service life of the equipment.

[0013] The spraying roller is provided with a limiting ring at both ends, the inside of the limiting ring is arrayed with a limiting spring, the other end of the limiting spring is arrayed with a fan-shaped block, and the fan-shaped block is arrayed in the limiting ring.

[0014] The fan-shaped block is arrayed with the limiting ring through the limiting spring, which can automatically adjust its position according to the rotation speed and the size of the centrifugal force. This allows the fan-shaped block to more accurately control the opening and closing of the flow channel inlet leading to the spraying pipe, thereby achieving precise control of the liquid flow. Since the fan-shaped block can accurately control the flow of liquid, it can ensure uniform distribution of the liquid on the spraying roller.

[0015] The adsorption roller is provided with a spiral blade at both ends, the rotation direction of the spiral blade is counterclockwise, and a rotating cylinder is installed in the middle of the spiral blade.

[0016] The design of the spiral blade allows the adsorption roller to generate suction force when rotating, effectively sucking the liquid in the dipping tank to the surface of the adsorption roller. The counterclockwise rotation direction of the spiral blade helps to evenly distribute the liquid on the adsorption roller. As the spiral blade rotates, the liquid is evenly applied to the surface of the adsorption roller, thereby achieving more uniform coating effect during the spraying process.

[0017] A limiting plate is installed in the middle of the spraying roller and the adsorption roller, the cross-sectional shape of the limiting plate is arc-shaped, the inner side of the limiting plate is installed with a connecting block, the other end of the connecting block is installed with a fixed rod, and one end of the fixed rod is fixed inside the support rod.

[0018] The limiting plate is closely connected with the supporting rod through the connecting block and the fixing rod, providing additional support for the spraying roller and the adsorption roller. This design enhances the structural stability of the entire immersion mechanism, reducing shaking and vibration when rotating at high speed or under external force, ensuring smooth operation of the equipment. The arc-shaped cross-section design of the limiting plate allows it to closely fit the outer surface of the spraying roller and the adsorption roller, accurately controlling the spraying and adsorption range of the liquid, avoiding equipment damage or uneven coating caused by excessive movement, and also avoiding liquid splashing on the spraying roller. The presence of the limiting plate allows the spraying roller and the adsorption roller to maintain a stable relative position during rotation. This helps ensure uniform distribution of the liquid on the material surface during spraying and adsorption, improving the uniformity and consistency of the coating.

[0019] The outer side of the limiting plate inside the spraying roller faces downward, and the outer side of the limiting plate inside the adsorption roller faces upward.

[0020] In the spraying roller, the design of the limiting plate outer side facing downward helps guide the liquid to be sprayed more evenly on the material. When the spraying roller rotates, the liquid is thrown out under the action of centrifugal force. In the adsorption roller, the design of the limiting plate outer side facing upward helps more effectively suck and transport the liquid. The design of the limiting plate allows the spraying roller and the adsorption roller to maintain a stable relative position during rotation, ensuring uniform distribution of the liquid on the material surface during spraying and adsorption.

[0021] The inner diameter of the sector block is equal to the diameter of the fixed rod, and the inner diameter of the rotating cylinder is equal to the diameter of the fixed rod.

[0022] Because the inner diameter of the sector block and the inner diameter of the rotating cylinder are equal to the diameter of the fixed rod, this design ensures that the sector block and the rotating cylinder can be precisely assembled on the fixed rod, improving the overall precision and stability of the equipment. The design of the sector block and the rotating cylinder involves the flow of liquid. The close assembly relationship can ensure that the liquid does not leak or accumulate in the gap when passing through these components, thereby optimizing the flow effect of the liquid and improving the uniformity and efficiency of the coating.

[0023] The beneficial effects of the utility model are as follows:

[0024] 1. During the rotation of the spraying roller, the flow groove inlet to the spraying pipe is automatically opened by means of centrifugal force, realizing precise on-demand supply of liquid. The adsorption roller inside adopts a spiral blade design, which can efficiently suck liquid from the immersion tank and transport it to the flow groove, ensuring continuous supply and uniform distribution of the coating liquid.

[0025] 2. The flow tank is directly connected with the spraying roller and the adsorption roller, which ensures smooth flow and accurate on-demand supply of the liquid. The spraying roller automatically opens the flow tank inlet when rotating, while the adsorption roller efficiently sucks the liquid into the flow tank by the internal spiral blade structure.

[0026] 3. The limiting plate adopts an arc cross-section design, which can closely fit the outer surface of the spraying roller and the adsorption roller, thereby accurately regulating the spraying and adsorption range of the liquid and effectively preventing splashing of the liquid on the spraying roller. The presence of the limiting plate ensures that the spraying roller and the adsorption roller can maintain a stable relative position during rotation, which helps the liquid to be evenly distributed on the material surface during spraying and adsorption, thereby improving the uniformity and consistency of the coating. BRIEF DESCRIPTION OF DRAWINGS

[0027] In order to more clearly illustrate the specific embodiments of the present application or the technical solutions in the prior art, the following will briefly introduce the drawings needed to be used in the specific embodiments or the prior art description. Obviously, the drawings described below are some embodiments of the present application, and those skilled in the art can also obtain other drawings according to these drawings without creative labor.

[0028] The above and other aspects of the present application will now be described, by way of example only, with reference to the accompanying drawings in which:

[0029] Figure 1 is the overall schematic diagram of the present application;

[0030] Figure 2 is the overall cross-sectional view of the present application;

[0031] Figure 3 is the top view of the present application;

[0032] Figure 4 is the support rod schematic diagram of the present application;

[0033] Figure 5 is the internal schematic diagram of the spraying roller of the present application;

[0034] Figure 6 is the limiting plate schematic diagram of the present application.

[0035] In the drawings: 1, impregnation tank; 2, conveying roller; 3, impregnation mechanism; 31, support rod; 32, spraying roller; 321, limiting ring; 322, limiting spring; 323, fan-shaped block; 33, adsorption roller; 331, spiral blade; 332, rotating cylinder; 34, flow tank; 35, rotating fan; 36, rotating shaft; 37, sealing cylinder; 38, motor; 381, support plate; 39, limiting plate; 391, connecting block; 392, fixed rod; 4, heating roller. DETAILED DESCRIPTION

[0036] In order to better understand the above technical solutions, the above technical solutions will be described in detail below in conjunction with the drawings and specific embodiments of the specification.

[0037] As shown in Figure 1 , 2 , 3, 4, 5 and 6, the high polymer impregnation coating equipment provided by the utility model, including impregnation tank 1, conveying roller 2, impregnation mechanism 3 and temperature rising roller 4, the upper of both ends of impregnation tank 1 is installed with conveying roller 2, the middle position of impregnation tank 1 is installed with impregnation mechanism 3, the upper of the right end of impregnation tank 1 is installed with temperature rising roller 4 for drying material, impregnation mechanism 3 is driven synchronous rotation through the transportation of material adsorption roller 33 and spray roller 32, the rotation of spray roller 32 promotes the outward movement of fan-shaped block 323 due to centrifugal force, further opens the inlet of flow groove 34 leading to spray pipe, and the rotation of adsorption roller 33 also drives the internal helical blade 331, liquid in impregnation tank 1 is sucked and transported into flow groove 34.

[0038] The equipment is automatically driven synchronous rotation of adsorption roller 33 and spray roller 32 through the transportation of material, does not need to rely on additional power source, this design significantly improves the overall work efficiency and effectively reduces the energy consumption. In the process of rotation, spray roller 32 opens the inlet of flow groove 34 leading to spray pipe automatically by centrifugal force, realizes the accurate on-demand supply of liquid. The internal helical blade 331 design of adsorption roller 33 can efficiently suck liquid from impregnation tank 1 and transport it into flow groove 34, ensuring the continuous supply and uniform distribution of coating liquid. The synchronous rotation of spray roller 32 and adsorption roller 33, combined with the fine design of the holes on the two rollers for the conduction of liquid, realizes the uniform coating of the material, and further improves the coating quality and the consistency of the product.

[0039] As shown in Figure 1 , 2 , 3 and 4, the impregnation mechanism 3 includes support rod 31, spray roller 32, adsorption roller 33 and flow groove 34, both sides of the inner side of impregnation tank 1 are installed with support rod 31, the cross-sectional shape of support rod 31 is L-shaped, and one side of support rod 31 is tightly attached to the inside of impregnation tank 1, spray roller 32 and adsorption roller 33 are installed between both ends of support rod 31, the upper end of support rod 31 is installed with spray roller 32, the lower end of support rod 31 is installed with adsorption roller 33, flow groove 34 is provided in support rod 31, flow groove 34 is connected to spray roller 32 and adsorption roller 33 respectively.

[0040] The support rod 31 adopts an L-shaped cross-section design, closely fits the inside of the immersion tank 1, provides a stable support structure for the spraying roller 32 and the adsorption roller 33, and ensures the high stability and reliability of the two during operation. The flow tank 34 is directly connected with the spraying roller 32 and the adsorption roller 33, ensuring smooth flow and accurate on-demand supply of the liquid. The spraying roller 32 automatically opens the flow tank 34 inlet when rotating, while the adsorption roller 33 efficiently sucks the liquid into the flow tank 34 by means of the internal spiral blade 331 structure, which significantly improves the flow efficiency of the liquid. The synchronous rotation of the spraying roller 32 and the adsorption roller 33, combined with the precise liquid spraying of the spraying roller 32 holes and the effective suction and delivery of the liquid by the adsorption roller 33, together realize uniform coating of the material, thereby significantly improving the quality and consistency of the product.

[0041] As shown in Figure 3 , 4 and 5, the flow tank 34 is internally installed with a rotating fan 35, the rotating fan 35 is connected with a rotating shaft 36, the side surface of the rotating shaft 36 is installed with a sealing cylinder 37, the other end of the rotating shaft 36 is installed with a motor 38, the lower side of the motor 38 is installed with a support plate 381, and the support plate 381 is fixed on the side surface of the immersion tank 1.

[0042] The installation of the rotating fan 35 promotes the flow of the liquid inside the flow tank 34, which helps the liquid to be more smoothly sucked and delivered from the adsorption roller 33 to the spraying roller 32. This enhanced flow helps to ensure uniform distribution and efficient use of the liquid. By driving the rotating fan 35 to rotate through the motor 38, the circulation and spraying process of the liquid can be accelerated, thereby improving the coating efficiency. Faster coating speed means higher productivity and lower unit cost. The sealing cylinder 37 installed on the side surface of the rotating shaft 36 helps to prevent liquid leakage from the rotating shaft 36, ensuring the sealing performance of the entire immersion mechanism 3. The design of the limiting spring 322 and the sector block 323 increases the complexity of the structure of the spraying roller 32, but at the same time improves its durability and reliability. The limiting spring 322 can absorb part of the impact force, reduce the wear between the sector block 323 and the limiting ring 321, and prolong the service life of the equipment.

[0043] As shown in Figure 3 , 4 and 5, the two ends of the spraying roller 32 are provided with limiting rings 321, the inside of the limiting ring 321 is arrayed with limiting springs 322, the other end of the limiting spring 322 is clamped with a sector block 323, and the sector block 323 is arrayed inside the limiting ring 321.

[0044] The fan-shaped block 323 is tightly clamped with the limiting spring 322 and the limiting ring 321, and can automatically adjust its position according to the rotation speed and the size of the centrifugal force generated. This design enables the fan-shaped block 323 to more accurately regulate the opening and closing state of the flow groove 34 entrance to the spray pipe, thereby achieving fine control of the liquid flow. Due to the ability of the fan-shaped block 323 to accurately regulate the liquid flow, it can ensure that the liquid is uniformly distributed on the spray roller 32.

[0045] As shown in Figure 1 , 2 , 3, 4, 5 and 6, the two ends of the adsorption roller 33 are provided with helical blades 331, the rotation direction of the helical blades 331 is counterclockwise, and the middle of the helical blades 331 is provided with a rotating cylinder 332.

[0046] The design of the helical blades 331 enables the adsorption roller 33 to generate suction force when rotating, effectively sucking the liquid in the immersion tank 1 to the surface of the adsorption roller 33, and the counterclockwise rotation direction of the helical blades 331 helps the liquid to be uniformly distributed on the adsorption roller 33. With the rotation of the helical blades 331, the liquid is evenly applied to the surface of the adsorption roller 33, thereby achieving more uniform coating effect during spraying.

[0047] As shown in Figure 5 and 6 , the middle of the spray roller 32 and the adsorption roller 33 is provided with a limiting plate 39, the cross-sectional shape of the limiting plate 39 is arc-shaped, the inner side of the limiting plate 39 is provided with a connecting block 391, the other end of the connecting block 391 is provided with a fixed rod 392, and one end of the fixed rod 392 is fixed to the inside of the support rod 31.

[0048] The limiting plate 39 is firmly connected to the support rod 31 through the connecting block 391 and the fixed rod 392, providing additional stable support for the spray roller 32 and the adsorption roller 33. This design significantly enhances the structural stability of the entire immersion mechanism 3, effectively reducing the shaking and vibration when rotating at high speed or encountering external force, ensuring the smooth operation of the equipment. The arc-shaped cross-section design of the limiting plate 39 enables it to closely fit the outer surface of the spray roller 32 and the adsorption roller 33, thereby accurately regulating the spraying and adsorption range of the liquid, effectively preventing the splashing of the liquid on the spray roller 32. The presence of the limiting plate 39 ensures that the spray roller 32 and the adsorption roller 33 can maintain a stable relative position during rotation, which helps the liquid to be uniformly distributed on the material surface during spraying and adsorption, thereby improving the uniformity and consistency of the coating.

[0049] As shown in Figure 5 and 6 , the outer side of the limiting plate 39 inside the spray roller 32 is facing downward, and the outer side of the limiting plate 39 inside the adsorption roller 33 is facing upward.

[0050] In the spraying roller 32, the downward design of the outer side of the limiting plate 39 helps to guide the liquid to be sprayed more evenly on the material. When the spraying roller 32 rotates, the liquid is thrown out under the action of centrifugal force, ensuring that the liquid can be sprayed according to the predetermined path and range. In the adsorption roller 33, the upward design of the outer side of the limiting plate 39 helps to more effectively suck and transport the liquid. The design of the limiting plate 39 ensures that the spraying roller 32 and the adsorption roller 33 can maintain a stable relative position during rotation, thereby ensuring that the liquid can be evenly distributed on the surface of the material during spraying and adsorption.

[0051] As shown in Figure 4 and 5 The inner diameter of the sector block 323 is equal to the diameter of the fixed rod 392, and the inner diameter of the rotating cylinder 332 is equal to the diameter of the fixed rod 392.

[0052] Because the inner diameter of the sector block 323 and the inner diameter of the rotating cylinder 332 are equal to the diameter of the fixed rod 392, this design ensures that the sector block 323 and the rotating cylinder 332 can be precisely assembled on the fixed rod 392, improving the overall precision and stability of the equipment. The design of the sector block 323 and the rotating cylinder 332 involves the flow of liquid. The close assembly relationship can ensure that the liquid does not leak or accumulate in the gap when passing through these components, thereby optimizing the flow effect of the liquid and improving the uniformity and efficiency of the coating.

[0053] In the working process of the utility model, the staff sends the material from the conveying roller 2, and then guides it to pass through the upper surface of the spraying roller 32 to the lower part of the adsorption roller 33. Then, the material is brought to the upper part of the spraying roller 32 again, and then enters the lower part of the adsorption roller 33 again. Finally, the material is conveyed from the lower part of the adsorption roller 33 to the heating roller 4, and after heating treatment, it is output from the upper part of the heating roller 4 to the conveying roller 2,

[0054] During the transportation of the material, the adsorption roller 33 and the spraying roller 32 are driven to rotate synchronously. The rotation of the spraying roller 32 causes the sector block 323 to move outward due to the centrifugal force, thereby opening the inlet of the flow groove 34 leading to the spraying pipe. At the same time, the rotation of the adsorption roller 33 also drives the spiral blade 331 inside it to suck and transport the liquid in the impregnation groove 1 into the flow groove 34, and at the same time, the material can be coated more closely. This rotating action not only enhances the efficiency of liquid transportation, but also promotes the smooth entry of liquid into the flow groove 34 through the rotating fan 35. Then, the liquid is introduced into the spraying roller 32 through the flow groove 34, and finally sprayed out of the holes of the spraying roller 32, realizing uniform coating of the material.

[0055] While one or more example embodiments of the disclosure have been described with reference to the accompanying drawings, it is to be understood that the ordinary skilled person will be able to conceive of various changes in form and detail without departing from the spirit and scope of the disclosure as defined by the appended claims.

Claims

1. A high polymer impregnation coating apparatus comprising an impregnation tank (1), a conveyance roll (2), an impregnation mechanism (3), and a temperature raising roll (4), characterized in that, The upper part of both ends of the impregnation tank (1) is provided with conveying rollers (2), and the middle part of the impregnation tank (1) is provided with impregnation mechanisms (3) in an array, and the upper part of the right end of the impregnation tank (1) is provided with temperature raising rollers (4) for drying materials, the impregnation mechanisms (3) are driven to rotate synchronously by the conveying of materials, the rotation of the spraying rollers (32) promotes the outward movement of the sector blocks (323) due to the centrifugal force, thereby opening the inlet of the flow grooves (34) leading to the spraying pipes, and the rotation of the adsorption rollers (33) also drives the spiral blades (331) inside to suck and convey the liquid in the impregnation tank (1) into the flow grooves (34).

2. The polymer impregnation coating apparatus according to claim 1, wherein: The impregnation mechanism (3) comprises support rods (31), spraying rollers (32), adsorption rollers (33) and flow grooves (34), the inside sides of the impregnation tank (1) are provided with support rods (31) on both sides, the cross-sectional shape of the support rod (31) is L-shaped, one side of the support rod (31) is tightly attached to the inside of the impregnation tank (1), the spraying rollers (32) and the adsorption rollers (33) are installed between the two ends of the support rod (31), the spraying roller (32) is installed at the upper end of the support rod (31), the adsorption roller (33) is installed at the lower end of the support rod (31), the flow grooves (34) are arranged in the support rod (31), and the flow grooves (34) are connected to the spraying rollers (32) and the adsorption rollers (33) respectively.

3. A polymer impregnation coating apparatus according to claim 2, wherein: A rotating fan (35) is installed in the flow groove (34), the rotating fan (35) is connected with a rotating shaft (36), a sealing cylinder (37) is installed on the side of the rotating shaft (36), a motor (38) is installed at the other end of the rotating shaft (36), a supporting plate (381) is installed below the motor (38), and the supporting plate (381) is fixed on the side of the impregnation tank (1).

4. A polymer impregnation coating apparatus according to claim 3, wherein: Limiting rings (321) are arranged at both ends of the spraying roller (32), limiting springs (322) are arranged in the limiting rings (321) in an array, sector blocks (323) are arranged at the other ends of the limiting springs (322), and the sector blocks (323) are arranged in the limiting rings (321) in an array.

5. A polymer impregnation coating apparatus according to claim 4, wherein: Spiral blades (331) are installed at both ends of the adsorption roller (33), the rotation direction of the spiral blades (331) is counterclockwise, and a rotating cylinder (332) is installed in the middle of the spiral blades (331).

6. A polymer impregnation coating apparatus according to claim 5, wherein: Limiting plates (39) are installed in the middle of the spraying roller (32) and the adsorption roller (33), the cross-sectional shape of the limiting plate (39) is arc-shaped, a connecting block (391) is installed on the inner side of the limiting plate (39), a fixed rod (392) is installed at the other end of the connecting block (391), and one end of the fixed rod (392) is fixed in the inside of the support rod (31).

7. A polymer impregnation coating apparatus according to claim 6, wherein: The outer side of the limiting plate (39) in the spraying roller (32) faces downward, and the outer side of the limiting plate (39) in the adsorption roller (33) faces upward.

8. A polymer impregnation coating apparatus according to claim 7, wherein: The inner diameter of the sector block (323) is equal to the diameter of the fixed rod (392), and the inner diameter of the rotating cylinder (332) is equal to the diameter of the fixed rod (392).

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