A coating device for medical dressing substrate

Abstract

This utility model discloses an adhesive coating device for medical and sanitary dressing substrates, relating to the field of medical and sanitary dressing substrate production technology. It includes a main body with a processing platform inside. A first adhesive outlet is installed at the front end of the main body above the processing platform. A roller is rotatably connected inside the main body behind the first adhesive outlet, and a drying device is installed inside the main body behind the roller. In this utility model, material on the processing platform first passes through the first adhesive outlet, and with the help of the roller, a thin adhesive layer is applied to the material surface. After initial drying by the drying device, the material passes through a second adhesive outlet, and with the help of rollers, a second adhesive layer is applied to the material surface, ensuring the adhesive layer reaches a specified thickness. Compared to one-time molding, two-time molding prevents inconsistent drying speeds between the inner and outer layers of the adhesive layer, which could lead to different shrinkage stresses and reduce the adhesion between the adhesive layer and the material.

Description

Technical Field

[0001] This utility model relates to the field of medical and health dressing substrate production technology, specifically to a coating device for medical and health dressing substrates. Background Technology

[0002] Medical dressings are medical materials used to cover sores, wounds or other damages, designed to control wound infection, promote healing and provide protection. Depending on their source and application, medical dressings can be classified into many types and are widely used in the fields of medicine, beauty, and healthcare.

[0003] Traditional dressings are mostly made of cotton fibers, such as gauze and cotton balls. While they offer some moisture absorption and protection, they tend to stick to the wound during the healing process, causing secondary damage and requiring frequent changes. This adds to the patient's suffering and increases the workload of medical staff. With the development of medical treatment technology, new and higher requirements are being placed on medical dressings. For example, chitosan has excellent biocompatibility and bioactivity with the human body, good moisture absorption and breathability, excellent broad-spectrum antibacterial properties, and significant hemostatic and analgesic effects, making it one of the best materials for preparing medical biological dressings. Spunlace nonwoven fabrics have a short process and low cost, and their products are soft, have good moisture absorption and breathability, and possess a certain strength, making them widely used in the medical and health fields.

[0004] While the aforementioned materials have good performance, they have a significant drawback compared to traditional dressing materials: they are difficult to apply adhesive to, requiring manual application, which is time-consuming and labor-intensive. Therefore, it is necessary to design an adhesive application device suitable for medical and health dressing substrates containing the aforementioned materials. Utility Model Content

[0005] Therefore, the purpose of this utility model is to provide a coating device for medical and health dressing substrates to solve the technical problem of poor coating effect of traditional devices.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a coating device for medical and health dressing substrates, comprising a main body, a processing platform inside the main body, a first adhesive outlet installed at the front end of the main body above the processing platform, a roller rotatably connected inside the main body behind the first adhesive outlet, a drying device installed inside the main body behind the roller, a second adhesive outlet installed inside the main body behind the drying device, a second rotating motor installed inside the main body, and the output end of the second rotating motor connected to a roller located behind the second adhesive outlet.

[0007] By adopting the above technical solution, the material used as dressing is placed on the processing platform inside the main body. The material first passes through the first glue outlet, and with the help of the roller, a thin layer of glue is applied to the surface of the material. Then, it is preliminarily dried by the drying device, which increases the adhesiveness of the glue layer and makes it adhere more stably to the material. Subsequently, the material passes through the second glue outlet, and with the help of the roller, the glue layer on the surface of the material is applied again, so that the glue layer on the surface of the material reaches the specified degree.

[0008] The present invention is further configured such that a top wheel is rotatably connected inside the main body below the grinding wheel, and a first rotating motor is installed inside the main body, and the output end of the first rotating motor is connected to the grinding wheel and the top wheel respectively.

[0009] By adopting the above technical solution, the cooperation between the top wheel and the rolling wheel allows the adhesive layer on the material surface to be subjected to more force when the material passes through the rolling wheel, thereby enabling the adhesive layer to adhere more stably to the material surface.

[0010] The present invention is further configured such that the surface of the grinding wheel is provided with a plurality of staggered limiting grooves.

[0011] By adopting the above technical solution, after the roller passes over the material, some of the excess glue will flow into the limiting groove, thereby forming interlaced "reinforcing ribs" on the surface of the glue layer, increasing the stability and contact area of ​​the glue layer, and thus better fusing with the second glue layer.

[0012] The present invention is further configured such that a plurality of scrapers are connected inside the main body between the first glue outlet and the grinding wheel, and adjacent scrapers are arranged to move closer to each other end to end.

[0013] By adopting the above technical solution, the scraper is used to prevent the glue from not evenly covering the entire material surface.

[0014] The present invention is further configured such that the scraper has a wavy shape.

[0015] By adopting the above technical solution, the wavy scraper can make the glue gather at each bend of the scraper, thereby forming several relative protrusions on the surface of the glue layer after passing through the scraper. This allows the glue to flow to the surroundings during the subsequent rolling of the roller, thereby expelling the fine air remaining in the glue and increasing the adhesion between the glue and the material.

[0016] The present invention is further configured such that an ultraviolet disinfection lamp is installed inside the main body, and a dust collection device is installed inside the main body.

[0017] By adopting the above technical solution, the ultraviolet disinfection lamp can prevent the material from being contaminated during the glue application process, while the dust collection device prevents dust from falling onto the material during the glue application process.

[0018] In summary, the present invention has the following main advantages:

[0019] This invention involves a processing platform where the material first passes through a first adhesive outlet, where a rolling roller coats the surface with a thin layer of adhesive. The material then undergoes initial drying in a drying device. Subsequently, the material passes through a second adhesive outlet, where rollers apply another layer of adhesive to the surface, ensuring the adhesive layer reaches the specified thickness. Compared to single-stage molding, this two-stage molding prevents inconsistent drying speeds between the inner and outer layers of the adhesive layer, which can lead to different shrinkage stresses and reduced adhesion between the adhesive layer and the material. Furthermore, the two-stage molding ensures the coating maintains good flexibility during drying, accommodating material deformation and reducing the likelihood of adhesive layer detachment due to deformation. Although two-stage molding is required, each coat is thinner, resulting in a shorter drying time and ultimately higher overall efficiency. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0021] Figure 2 This is a top-down half-sectional view of the overall structure of this utility model;

[0022] Figure 3 This is a side sectional view of the overall structure of this utility model;

[0023] Figure 4 For the present utility model Figure 2 Enlarged view of the structure at point A in the middle.

[0024] In the diagram: 1. Main body; 2. Processing platform; 3. First glue outlet; 4. Second glue outlet; 5. Roller; 6. Top roller; 7. Drying device; 8. Roller; 9. Scraper; 10. Limiting groove. Detailed Implementation

[0025] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0026] The embodiments of this utility model will be described below based on its overall structure.

[0027] An adhesive coating device for medical dressing substrates, such as Figure 1-4As shown, the device includes a main body 1, with a processing platform 2 inside. A first adhesive outlet 3 is installed above the processing platform 2 at the front end of the main body 1. A roller 5 is rotatably connected to the inside of the main body 1 behind the first adhesive outlet 3. A drying device 7 is installed inside the main body 1 behind the roller 5. A second adhesive outlet 4 is installed inside the main body 1 behind the drying device 7. A second rotating motor is installed inside the main body 1, and the output end of the second rotating motor is connected to a roller 8 located behind the second adhesive outlet 4. The material to be used as dressing is placed on the processing platform 2 inside the main body 1. The material first passes through the first adhesive outlet 3, and with the help of the roller 5, a thin layer of adhesive is applied to the surface of the material. Then, it passes through the drying device 7 for preliminary drying, which increases the adhesiveness of the adhesive layer and makes it adhere more stably to the material. Subsequently, the material passes through the second adhesive outlet 4, and with the help of the roller 8, the surface of the material is coated with an adhesive layer again, so that the adhesive layer on the surface of the material reaches the specified degree.

[0028] Inside the main body 1, a top wheel 6 is rotatably connected below the grinding wheel 5. A first rotating motor is installed inside the main body 1, and the output end of the first rotating motor is connected to the grinding wheel 5 and the top wheel 6 respectively. The cooperation between the top wheel 6 and the grinding wheel 5 makes the adhesive layer on the surface of the material subject to more force when the material passes through the grinding wheel 5, so that the adhesive layer can adhere to the surface of the material more stably.

[0029] The surface of the roller 5 is provided with several interlaced limiting grooves 10. After the roller 5 rolls over the material, some of the excess glue will flow into the limiting grooves 10, thereby forming interlaced "reinforcing ribs" on the surface of the glue layer, increasing the stability of the glue layer and the contact area, so as to better fuse with the second glue layer.

[0030] Inside the main body 1, between the first glue outlet 3 and the roller 5, there are several scrapers 9 connected, and the adjacent scrapers 9 are close to each other from end to end. The scrapers 9 are used to prevent the glue from not evenly covering the entire material surface.

[0031] The scraper 9 has a wavy shape. The wavy shape of the scraper 9 allows the glue to gather at each bend of the scraper 9, thereby forming several relative protrusions on the surface of the glue layer after passing through the scraper 9. This allows the glue to flow to the surroundings during the subsequent rolling of the roller 5, thereby expelling the fine air remaining in the glue and increasing the adhesion between the glue and the material.

[0032] The main body 1 is equipped with an ultraviolet disinfection lamp and a dust collection device. The ultraviolet disinfection lamp can prevent the material from being contaminated during the glue application process, while the dust collection device prevents dust from falling onto the material during the glue application process.

[0033] Working principle: The dressing material is placed on the processing platform 2 inside the main body 1. The first adhesive outlet 3 first applies adhesive to the material surface, and then the scraper 9 evenly covers the entire material surface with adhesive. The wavy scraper 9 allows the adhesive to gather at various bends, creating several relative protrusions on the adhesive layer surface. This allows the adhesive to flow outwards during the subsequent rolling of the roller 5, thereby expelling residual air in the adhesive and increasing the adhesion between the adhesive and the material. Then, the top roller 6, in conjunction with the roller 5, rolls the material and adhesive, resulting in a more even coating on the material surface. A thin layer of adhesive is applied. During this process, after the roller 5 rolls over the material, some of the excess adhesive flows into the limiting groove 10, forming interlaced "reinforcing ribs" on the surface of the adhesive layer. This increases the stability and contact area of ​​the adhesive layer, allowing it to better fuse with the second adhesive layer. Finally, the material with the thin adhesive layer is pre-dried by the drying device 7, which increases the adhesiveness of the adhesive layer and makes it adhere more stably to the material. Finally, the material passes through the second adhesive outlet 4 and, with the cooperation of the roller 8, the surface of the material is coated with adhesive again, ultimately achieving the specified degree of adhesive on the material surface.

[0034] Based on the above structure, although embodiments of the present utility model have been shown and described in this embodiment, these specific embodiments are merely explanations of the present utility model and are not intended to limit the utility model. The specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. After reading this specification, those skilled in the art may make modifications, substitutions, and variations to the embodiments as needed without departing from the principles and spirit of the present utility model, but such modifications, substitutions, and variations are protected by patent law as long as they fall within the scope of the claims of the present utility model.

Claims

1. A device for gluing a medical dressing substrate, comprising a main body (1), characterised in that: The main body (1) has a processing platform (2) inside. The front end of the main body (1) is equipped with a first glue outlet (3) above the processing platform (2). The main body (1) is rotatably connected to a grinding wheel (5) behind the first glue outlet (3). The main body (1) is equipped with a drying device (7) behind the grinding wheel (5). The main body (1) is equipped with a second glue outlet (4) behind the drying device (7). The main body (1) is equipped with a second rotating motor, and the output end of the second rotating motor is connected to a roller (8) behind the second glue outlet (4).

2. The device for gluing medical and sanitary dressing substrates according to claim 1, characterized in that: The main body (1) is rotatably connected to a top wheel (6) located below the grinding wheel (5). A first rotating motor is installed inside the main body (1), and the output end of the first rotating motor is connected to the grinding wheel (5) and the top wheel (6) respectively.

3. The device for coating medical and sanitary dressing material according to claim 1, characterized in that: The surface of the grinding wheel (5) is provided with several interlaced limiting grooves (10).

4. The device for coating medical and sanitary dressing material according to claim 1, characterized in that: The interior of the main body (1) is connected between the first glue outlet (3) and the roller (5) with several scrapers (9), and the adjacent scrapers (9) are close to each other from end to end.

5. The device for coating a medical dressing substrate according to claim 4, wherein: The scraper (9) has a wavy shape.

6. The device for coating medical and sanitary dressing material according to claim 1, characterized in that: The main body (1) is equipped with an ultraviolet disinfection lamp.

7. The device according to claim 1, wherein: The main body (1) is equipped with a dust collection device.

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