Low-sensitization antibacterial coating device

Abstract

The utility model provides a low-sensitization antibacterial coating device which comprises a working table, a second mounting frame mounted on the upper half section of one side of the working table, a first mounting frame mounted on the lower half section of one side of the working table, a through hole formed in the working table, a first extrusion roller arranged in the through hole, a coating assembly arranged at one end of the upper surface of the working table, and a second extrusion roller arranged at the other end of the upper surface of the working table, a first drying box and a second drying box are arranged in the center of the upper surface of the workbench, a first traction mechanism is arranged at one end of the second drying box, and two winding rollers are arranged in the first mounting frame. The position and tension of each layer of material can be accurately controlled, so that multiple layers of materials can be accurately compounded together, the quality and consistency of products are improved, the stability of production efficiency is ensured by air intake, low sensitization is realized by coating medical silica gel on a contact layer, anaphylactic reaction caused by direct contact of traditional pressure-sensitive adhesive with skin is avoided, and the production efficiency is improved. The antibacterial function is achieved through the independent antibacterial layer, and a coating assembly does not need to participate in the antibacterial function.

Description

Technical Field

[0001] This utility model relates to the field of medical multilayer composite dressing technology, specifically to a low-allergenic antibacterial coating device. Background Technology

[0002] Traditional dressings (such as gauze and adhesive bandages) suffer from poor breathability, susceptibility to infection, and a high risk of secondary injury. Chronic wounds (such as diabetic ulcers and burns) require novel antibacterial materials due to biofilm formation and drug-resistant bacterial infections, such as photodynamic therapy (PDT), photothermal antibacterial agents, or nano-antibacterial agents. However, existing antibacterial coating technologies may cause allergic reactions due to chemical residues or metal ions (such as silver ions), limiting their application. Multilayer dressings enhance performance through the synergistic effect of different functional layers (such as absorbent, antibacterial, and barrier layers). However, most current low-allergenic antibacterial coating devices are prone to misalignment during manual layering of multilayer composite dressings, leading to incorrect layering and affecting practical use. Furthermore, the antibacterial coating uniformity is poor, and the single-temperature drying method often results in solvent residue, which can cause contact dermatitis during use. Utility Model Content

[0003] The present invention aims to solve the problems mentioned in the background art by providing a low-allergenic antibacterial coating device.

[0004] The specific technical solution is as follows:

[0005] A low-allergenic antibacterial coating device includes: a workbench; a second mounting frame is installed on the upper half of one side of the workbench; a first mounting frame is installed on the lower half of one side of the workbench; a perforation is provided inside the workbench; a first extrusion roller is provided in the perforation; a coating assembly is provided at one end of the upper surface of the workbench; a first drying chamber and a second drying chamber are provided at the center of the upper surface of the workbench; a first traction mechanism is provided at one end of the second drying chamber; two winding rollers are provided in the first mounting frame, which are respectively used to wind a substrate combination; the winding roller located in the upper half of the inner wall of the first mounting frame is used to wind an adhesive layer and a barrier layer; the winding roller located in the lower half of the inner wall of the first mounting frame is used to wind an absorbent layer and an antibacterial layer; a feeding roller is provided in the second mounting frame; and a receiving roller is provided on the other side of the workbench, with the receiving roller and the first mounting frame located at opposite ends of the perforation.

[0006] As a preferred embodiment of this utility model, both the first drying box and the second drying box have a hole at one end, the hole corresponding to the first traction mechanism. The first drying box is equipped with a far-infrared radiation plate, the second drying box is equipped with a carbon fiber infrared tube, a fan is provided at one end of the lower surface of the inner wall of the second drying box, the fan is located at the lower end of the carbon fiber infrared tube, and an L-shaped ventilation hole is provided on one side of the workbench, the other end of the L-shaped ventilation hole extending to the air inlet end of the lower surface of the fan.

[0007] In a preferred embodiment of this utility model, a guide hole is provided at one end of the upper surface of the worktable. The guide hole is located at one end of the first traction mechanism, and two guide rollers are installed inside the guide hole. The guide hole communicates with the through hole.

[0008] As a preferred embodiment of this utility model, two second extrusion rollers are provided inside the perforation, one of the two second extrusion rollers is located at one end where the guide hole and the perforation pass through, a conveyor belt is provided between the two second extrusion rollers, and a second traction mechanism is provided at the other end of the perforation.

[0009] As a preferred embodiment of the present invention, the coating assembly includes a mounting plate, which is mounted on both sides of the workbench. Rotating rollers are rotatably mounted on the upper half of the inner wall segments of the two mounting plates. A coating roller is provided at the lower end of the rotating roller, and several coating heads are provided around the coating roller.

[0010] As a preferred embodiment of this utility model, a liquid storage tank is installed at one end of the lower half of the inner wall of the two mounting plates, and an infusion pipe is connected to one side of the liquid storage tank. The infusion pipe is used to connect to external liquid for replenishment, and a semi-circular liquid storage ring is fixedly installed on the upper surface of the liquid storage tank.

[0011] In a preferred embodiment of this utility model, the upper surface of the liquid storage tank is provided with a liquid inlet hole at the center, which is connected to one end of the lower surface of the inner wall of the semi-circular liquid storage ring. A liquid storage cotton roller is rotatably installed inside the liquid inlet hole, and a sponge is provided around the liquid storage cotton roller so that it can absorb medical silicone solution through the sponge to continuously wet the coating head. The inner wall of the semi-circular liquid storage ring is provided with a medical silicone solution slow-release membrane for continuously supplying low-allergenic medical silicone solution to the liquid storage cotton roller.

[0012] This utility model has the following beneficial effects:

[0013] 1. The low-allergenic antibacterial coating device provided by this utility model, through the design of a wrapping roller, a first traction mechanism, and a coating assembly, uses medical-grade silicone pressure-sensitive adhesive as the adhesive layer material, PE microporous membrane as the barrier layer material, superabsorbent resin as the absorbent layer material, and silver ion fiber membrane as the antibacterial layer material. The material is released from the wrapping roller of the first mounting frame. When winding onto the wrapping roller, the corresponding materials are bonded together and wound into the wrapping roller. Then, the second traction mechanism pulls and pulls the material through the first and second extrusion rollers located in the perforations, pressing it onto the conveyor belt between the two second extrusion rollers. The first traction mechanism then pulls and pulls the low-allergenic nonwoven contact layer material wound on the feeding roller, and the coating assembly evenly coats the contact layer surface with low-allergenic medical-grade silicone, improving the comfort of the dressing. Finally, the coating is initially cured by a far-infrared radiation plate in the first drying oven to prevent cracking. After deep drying by carbon fiber infrared tubes in the second drying chamber, the fan inside the second drying chamber blows heat upwards, and the L-shaped ventilation holes do not affect the air inlet of the fan, allowing it to operate stably. The dried hypoallergenic nonwoven fabric enters the guide hole from one side of the first traction mechanism, and enters the perforation through the guide roller, so that it comes into contact with the other materials on the surface of the conveyor belt. Then the conveyor belt is started, and the five layers of material are squeezed and bonded together by another second extrusion roller. They are then pulled out by the second traction mechanism and collected in the receiving roller for subsequent use. This allows for precise control of the position and tension of each layer of material, enabling the multi-layer material to be accurately bonded together, improving product quality and consistency. Air intake ensures the stability of production efficiency. Hypoallergenicity is achieved by coating the contact layer with medical-grade silicone, avoiding allergic reactions caused by direct contact of traditional pressure-sensitive adhesives with the skin. Antibacterial properties are achieved through an independent antibacterial layer.

[0014] 2. The low-allergenic antibacterial coating device provided by this utility model, through the design of a rotating roller, a coating roller, a semi-circular liquid storage ring, and a liquid storage cotton roller, guides the low-allergenic nonwoven fabric through a first traction mechanism, causing it to pass between the rotating roller and the coating roller. The medical-grade silicone solution slow-release membrane on the inner wall of the semi-circular liquid storage ring continuously supplies the low-allergenic adhesive to the liquid storage cotton roller. The coating head contacts the liquid storage cotton roller, allowing the coating head installed on the periphery of the coating roller to acquire the medical-grade silicone solution and uniformly coat the surface of the low-allergenic nonwoven fabric. This ensures a stable liquid supply, guarantees the stability and uniformity of the coating quality, and avoids the problem of uneven coating thickness and high risk of allergies caused by spraying or dipping processes. The medical-grade silicone solution is injected into the storage tank through an infusion tube and enters the semi-circular liquid storage ring slow-release membrane through the inlet hole to avoid fluctuations in solution concentration and ensure coating uniformity. Attached Figure Description

[0015] Figure 1 A schematic diagram of the overall structure of the low-allergenic antibacterial coating device provided in this embodiment of the utility model;

[0016] Figure 2 A schematic diagram of the internal structure of the workbench of the low-allergenic antibacterial coating device provided in this embodiment of the utility model;

[0017] Figure 3 A schematic diagram of the coating component structure of the low-allergenic antibacterial coating device provided in this embodiment of the utility model;

[0018] Figure 4 A schematic diagram of the liquid storage cotton roller structure of the low-allergenic antibacterial coating device provided in this embodiment of the utility model;

[0019] Figure 5 A schematic diagram of the semi-circular liquid storage ring structure of the low-allergenic antibacterial coating device provided in this embodiment of the utility model.

[0020] In the attached image:

[0021] 1. Workbench; 101. First mounting frame; 102. Winding roller; 103. Second mounting frame; 104. Feeding roller; 105. Receiving roller;

[0022] 2. Feed guide hole; 201. Guide roller;

[0023] 3. Coating assembly; 301. Mounting plate; 302. Rotating roller; 303. Coating roller; 304. Coating head; 305. Semi-circular liquid storage ring; 306. Liquid storage tank; 307. Infusion pipe; 308. Liquid storage cotton roller; 309. Liquid inlet hole;

[0024] 4. First drying oven; 401. Second drying oven; 402. Far-infrared radiation plate; 403. Carbon fiber infrared tube; 404. Fan; 405. L-shaped ventilation hole;

[0025] 5. Perforation; 501. First extrusion roller; 502. Second extrusion roller; 503. Conveyor belt;

[0026] 6. First traction mechanism; 601. Second traction mechanism. Detailed Implementation

[0027] The technical solution of this utility model will be further described below with reference to the accompanying drawings and specific embodiments.

[0028] The accompanying drawings are for illustrative purposes only and are schematic diagrams, not actual images. They should not be construed as limiting the scope of this patent. To better illustrate the embodiments of this utility model, some components in the drawings may be omitted, enlarged, or reduced, and do not represent the actual dimensions of the product. It is understandable to those skilled in the art that some well-known structures and their descriptions may be omitted in the drawings.

[0029] In the accompanying drawings of this utility model, the same or similar reference numerals correspond to the same or similar components. In the description of this utility model, it should be understood that if terms such as "upper," "lower," "left," "right," "inner," and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, they are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the terms used to describe positional relationships in the drawings are only for illustrative purposes and should not be construed as limiting this patent. For those skilled in the art, the specific meaning of the above terms can be understood according to the specific circumstances.

[0030] In the description of this utility model, unless otherwise explicitly specified and limited, the term "connection" or similar designation indicating the connection relationship between components should be interpreted broadly. For example, it can refer to a fixed connection, a detachable connection, or an integral part; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0031] Example 1

[0032] The low-allergenic antibacterial coating device provided in this embodiment, such as Figures 1-5As shown, it includes: a workbench 1, a second mounting bracket 103 mounted on the upper half of one side of the workbench 1, a first mounting bracket 101 mounted on the lower half of one side of the workbench 1, a through hole 5 inside the workbench 1, a first extrusion roller 501 installed in the through hole 5, a coating assembly 3 installed at one end of the upper surface of the workbench 1, a first drying chamber 4 and a second drying chamber 401 installed at the center of the upper surface of the workbench 1, a first traction mechanism 6 installed at one end of the second drying chamber 401, and two... Two winding rollers 102 are used to wind the substrate assembly. The winding roller 102 located in the upper half of the inner wall of the first mounting frame 101 is used to wind the adhesive layer and the barrier layer. The winding roller 102 located in the lower half of the inner wall of the first mounting frame 101 is used to wind the liquid-absorbing layer and the antibacterial layer. A feeding roller 104 is provided in the second mounting frame 103. A receiving roller 105 is provided on the other side of the worktable 1. The receiving roller 105 and the first mounting frame 101 are located at the two ends of the perforation 5, respectively. Both the first drying chamber 4 and the second drying chamber 401 have openings at one end, corresponding to the first traction mechanism 6. The first drying chamber 4 contains a far-infrared radiation plate 402, and the second drying chamber 401 contains a carbon fiber infrared tube 403. A fan 404 is located at one end of the lower surface of the inner wall of the second drying chamber 401, below the carbon fiber infrared tube 403. An L-shaped ventilation hole 405 is located on one side of the workbench 1, with the other end extending to the air inlet on the lower surface of the fan 404. A guide hole 2 is located at one end of the upper surface of the workbench 1, at one end of the first traction mechanism 6. Two guide rollers 201 are installed in the guide hole 2, which communicates with the perforation 5. Two second extrusion rollers 502 are installed in the perforation 5, one of which is located at the point where the guide hole 2 and the perforation 5 communicate. A conveyor belt 503 is located between the two second extrusion rollers 502. The second traction mechanism 601 is located at the other end of the perforation 5.

[0033] Through the design of the wrapping roller 102, the first traction mechanism 6, and the coating assembly 3, the adhesive layer material is medical-grade silicone pressure-sensitive adhesive, the barrier layer material is PE microporous membrane, the liquid-absorbing layer material is superabsorbent resin, and the antibacterial layer material is silver ion fiber membrane. The material is released from the wrapping roller 102 of the first mounting frame 101. When winding onto the wrapping roller 102, the corresponding materials are adhered together and wound into the wrapping roller 102. Then, it is pulled and stretched by the second traction mechanism 601, passing through the perforation 5. The first extrusion roller 501 and the second extrusion roller 502 press together, causing the material to remain on the conveyor belt 503 between the two second extrusion rollers 502. Then, the first traction mechanism 6 pulls and stretches the low-allergenic non-woven contact layer material wound on the feeding roller 104. The coating assembly 3 then evenly coats the contact layer surface with low-allergenic medical silicone, improving the comfort of the dressing. After initial curing by the far-infrared radiation plate 402 inside the first drying chamber 4 to prevent coating cracking, the material is then dried in the second drying chamber 4. The carbon fiber infrared tube 403 inside the first drying chamber 401 is used for deep drying. The fan 404 inside the second drying chamber 401 blows heat upwards, and the L-shaped ventilation hole 405 does not affect the air inlet of the fan 404, allowing it to operate stably. The dried low-allergenic nonwoven fabric enters the guide hole 2 from one side of the first traction mechanism 6, and enters the perforation 5 through the guide roller 201, so that it comes into contact with the remaining material on the surface of the conveyor belt 503. Then the conveyor belt 503 is started, and the five layers of material are squeezed and bonded together by another second extrusion roller 502. They are then pulled out by the second traction mechanism 601 and collected in the receiving roller 105 for subsequent use. This allows for precise control of the position and tension of each layer of material, enabling the multi-layer material to be accurately bonded together, improving the quality and consistency of the product. The air intake ensures the stability of production efficiency. Low allergenicity is achieved by coating the contact layer with medical silicone, avoiding allergic reactions caused by direct contact of traditional pressure-sensitive adhesives with the skin. Antibacterial properties are achieved through an independent antibacterial layer.

[0034] The principles of the first traction mechanism 6 and the second traction mechanism 601 are the same as those of the traction mechanism 1 in publication number CN209362843U.

[0035] Example 2

[0036] The low-allergenic antibacterial coating device provided in this embodiment, such as Figures 3-5As shown, the coating assembly 3 includes mounting plates 301, which are mounted on both sides of the workbench 1. Rotating rollers 302 are rotatably mounted on the upper half of the inner walls of the two mounting plates 301. A coating roller 303 is located at the lower end of the rotating roller 302, and several coating heads 304 are arranged around the coating roller 303. A liquid storage tank 306 is mounted at one end of the lower half of the inner walls of the two mounting plates 301. A liquid infusion pipe 307 is connected to one side of the liquid storage tank 306 for connecting to external liquid for replenishment. A semi-circular liquid storage ring 305 is fixedly mounted on the upper surface of the liquid storage tank 306. The liquid storage tank 306 has an inlet hole 309 at the center of the upper surface. The inlet hole 309 is connected to one end of the center of the lower surface of the inner wall of the semi-circular liquid storage ring 305. A liquid storage cotton roller 308 is rotatably installed inside the inlet hole 309. A sponge is provided around the liquid storage cotton roller 308 so that it can absorb medical silicone solution through the sponge and continuously wet the coating head 304. The inner wall of the semi-circular liquid storage ring 305 is provided with a medical silicone solution slow-release membrane for continuously supplying low-allergenic medical silicone solution to the liquid storage cotton roller 308.

[0037] Through the design of rotating roller 302, coating roller 303, semi-circular liquid storage ring 305, and liquid storage cotton roller 308, the low-allergenic nonwoven fabric is pulled by the first traction mechanism 6, passing between rotating roller 302 and coating roller 303. The medical silicone solution slow-release membrane on the inner wall of semi-circular liquid storage ring 305 continuously supplies low-allergenic adhesive to liquid storage cotton roller 308. Coating head 304 contacts liquid storage cotton roller 308, so that the coating head 304 installed on the periphery of coating roller 303 obtains medical silicone solution and uniformly coats the medical silicone solution on the surface of low-allergenic nonwoven fabric. This can stabilize the liquid supply, ensure the stability and uniformity of coating quality, and avoid the problem of uneven coating thickness and high risk of allergies caused by spraying or dipping processes. The medical silicone solution is injected into the storage tank 306 through infusion pipe 307 and enters the slow-release membrane of semi-circular liquid storage ring 305 through liquid inlet hole 309 to avoid solution concentration fluctuations and ensure coating uniformity.

[0038] In summary, the low-allergenic antibacterial coating device provided in this embodiment has the following advantages: no manual layering is required during use, reducing the occurrence of layering errors that affect production efficiency, and improving the uniformity of the antibacterial coating. The dual-temperature zone drying method avoids solvent residue that could affect subsequent use, thereby improving practicality.

[0039] In use, when wound onto the wrapping roller 102, the corresponding material is rolled into the wrapping roller 102 together by adhering it to the material. It is then pulled by the second traction mechanism 601, passing through the first and second extrusion rollers 501 and 502 located in the perforation 5, and pressed together, stopping it on the conveyor belt 503 between the two second extrusion rollers 502. Then, pulled by the first traction mechanism 6, the low-allergenic nonwoven contact layer material wound on the feeding roller 104 passes between the rotating roller 302 and the coating roller 303 in the coating assembly 3. The medical-grade silicone solution slow-release membrane on the inner wall of the semi-circular liquid storage ring 305 continuously supplies low-allergenic medical-grade silicone solution to the liquid storage cotton roller 308. The coating head 304 contacts the liquid storage cotton roller 308, allowing coating to proceed. The coating head 304, installed around the roller 303, obtains medical-grade silicone solution and evenly coats it onto the surface of the contact layer to form a low-allergenic adhesive layer. After initial curing by the far-infrared radiation plate 402 in the first drying chamber 4 to prevent the coating from cracking, the low-allergenic nonwoven fabric is then deeply dried by the carbon fiber infrared tube 403 in the second drying chamber 401. The dried low-allergenic nonwoven fabric enters the guide hole 2 from one side of the first traction mechanism 6 and enters the perforation 5 through the guide roller 201, so that it comes into contact with the remaining material on the surface of the conveyor belt 503. Then the conveyor belt 503 is started, so that the five layers of material are squeezed and bonded together by another second extrusion roller 502. The material is then pulled out by the second traction mechanism 601 and collected in the receiving roller 105 for subsequent use.

[0040] The above are merely preferred embodiments of the present utility model and are not intended to limit the implementation methods and protection scope of the present utility model. Those skilled in the art should realize that any equivalent substitutions and obvious changes made based on the description and illustrations of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A low-allergenic antibacterial coating device, characterized by, include: A workbench (1) is provided with a second mounting bracket (103) installed on the upper half of one side of the workbench (1) and a first mounting bracket (101) installed on the lower half of one side of the workbench (1). The workbench (1) has a perforation (5) inside, and a first extrusion roller (501) is installed inside the perforation (5). A coating assembly (3) is provided at one end of the upper surface of the workbench (1). A first drying chamber (4) and a second drying chamber (401) are provided at the center of the upper surface of the workbench (1). A first traction mechanism (6) is provided at one end of the second drying chamber (401). The first mounting bracket (101)... The device is equipped with two winding rollers (102), which are used to wind the substrate assembly. The winding roller (102) located on the upper half of the inner wall of the first mounting frame (101) is used to wind the adhesive layer and the barrier layer. The winding roller (102) located on the lower half of the inner wall of the first mounting frame (101) is used to wind the liquid-absorbing layer and the antibacterial layer. The second mounting frame (103) is equipped with a feeding roller (104). The other side of the worktable (1) is equipped with a receiving roller (105). The receiving roller (105) and the first mounting frame (101) are located at the two ends of the perforation (5).

2. The low-allergenic antimicrobial coating device according to claim 1, wherein Both the first drying box (4) and the second drying box (401) have a hole at one end, which corresponds to the first traction mechanism (6). The first drying box (4) is equipped with a far-infrared radiation plate (402), and the second drying box (401) is equipped with a carbon fiber infrared tube (403). A fan (404) is provided at one end of the lower surface of the inner wall of the second drying box (401). The fan (404) is located at the lower end of the carbon fiber infrared tube (403). An L-shaped ventilation hole (405) is provided on one side of the workbench (1), and the other end of the L-shaped ventilation hole (405) extends through to the air inlet end of the lower surface of the fan (404).

3. The low-allergenic antimicrobial coating apparatus according to claim 1, wherein The workbench (1) has a guide hole (2) at one end of its upper surface. The guide hole (2) is located at one end of the first traction mechanism (6). Two guide rollers (201) are installed in the guide hole (2). The guide hole (2) is connected to the through hole (5).

4. The low-allergenic antimicrobial coating apparatus according to claim 1, wherein Two second extrusion rollers (502) are provided inside the perforation (5). One of the two second extrusion rollers (502) is located at one end where the guide hole (2) and the perforation (5) pass through. A conveyor belt (503) is provided between the two second extrusion rollers (502). A second traction mechanism (601) is provided at the other end of the perforation (5).

5. The low-allergenic antimicrobial coating apparatus according to claim 1, wherein The coating assembly (3) includes a mounting plate (301), which is mounted on both sides of the workbench (1). Rotating rollers (302) are rotatably mounted on the upper half of the inner wall of the two mounting plates (301). A coating roller (303) is provided at the lower end of the rotating roller (302), and a plurality of coating heads (304) are provided around the coating roller (303).

6. The low-allergenic antimicrobial coating apparatus according to claim 5, wherein, A liquid storage tank (306) is installed at one end of the lower half of the inner wall of the two mounting plates (301). A delivery pipe (307) is connected to one side of the liquid storage tank (306). The delivery pipe (307) is used to connect to external liquid for replenishment. A semi-circular liquid storage ring (305) is fixedly installed on the upper surface of the liquid storage tank (306).

7. The low-allergenic antimicrobial coating apparatus according to claim 6, wherein The liquid storage tank (306) has an inlet hole (309) at the center of the upper surface. The inlet hole (309) is connected to one end of the center of the lower surface of the inner wall of the semi-circular liquid storage ring (305). A liquid storage cotton roller (308) is rotatably installed inside the inlet hole (309). A sponge is provided around the liquid storage cotton roller (308) so that it can absorb medical silicone solution through the sponge and continuously wet the coating head (304). A medical silicone solution slow-release membrane is provided on the inner wall of the semi-circular liquid storage ring (305) for continuously supplying low-allergenic medical silicone solution to the liquid storage cotton roller (308).

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