A medical dressing applicator

Abstract

The application belongs to the technical field of dressing coating, and particularly relates to a medical dressing coating device, which comprises a mounting frame, the upper side wall of the mounting frame is provided with a conveying belt mechanism and a mounting plate, the side wall of the mounting plate is connected with a storage tank, the side wall of the storage tank is connected with a conveying pump, the discharging end of the conveying pump penetrates through the mounting plate and is connected with a coating head, and the device further comprises a negative pressure assembly arranged in the conveying belt mechanism, which can improve the placement stability of the surface base material single piece. When the medical water gel dressing is coated on the base material single piece, the adjacent two base material single pieces are automatically attached with a separation plate at the interval, so that the coating head can continuously perform the coating work, thereby avoiding the problem that the surface dressing of the base material single piece is not uniform in thickness before and after the frequent start and stop of the coating head, the overall thickness tolerance exceeds the standard, and the consistency of the medical dressing product quality is ensured.

Description

Technical Field

[0001] This invention belongs to the field of dressing coating technology, and in particular relates to a medical dressing coating device. Background Technology

[0002] In the field of medical dressing coating processing, in order to avoid defects such as coating overflow, missing glue, and coating misalignment caused by cutting the finished product when coating the whole substrate continuously, and to reduce the waste generated by cutting the corners after coating a large area of ​​substrate, the whole roll of substrate is first cut into individual pieces before dressing coating.

[0003] In the coating process of medical dressings, the substrate is fed intermittently piece by piece, and the coating head is frequently started and stopped to complete the coating. During the intermittent operation, the frequent start and stop of the coating head to supply material causes periodic fluctuations and sudden rises and falls in the pressure of the slurry delivery pipeline. When coating a single substrate, the pipeline pressure is not stable at the moment of start-up, and the excessive supply of slurry causes the adhesive layer in the front section of the substrate to be too thick. In the later stage of coating, the pipeline pressure decreases and the material supply is insufficient, resulting in the adhesive layer in the back section of the substrate being too thin. Ultimately, this results in uneven adhesive thickness at the front and back of a single dressing and the overall thickness tolerance exceeding the standard, thereby destroying the uniformity of the dressing coating, affecting the product's breathability, moisture absorption, skin adhesion and other properties, leading to poor product quality consistency, increasing product scrap rate and production costs.

[0004] To address this problem, a medical dressing application device is proposed. Summary of the Invention

[0005] The purpose of this invention is to address the above-mentioned problems by providing a medical dressing coating device.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a medical dressing coating device, comprising a mounting frame, wherein the upper side wall of the mounting frame is provided with a conveyor belt mechanism and a mounting plate, a storage box is connected to the side wall of the mounting plate, a conveying pump is connected to the side wall of the storage box, the discharge end of the conveying pump passes through the mounting plate and is connected to a coating head, and further comprising: The negative pressure component, located inside the conveyor belt mechanism, can improve the placement stability of the substrate sheet on the surface of the conveyor belt mechanism; A scraper assembly, disposed on the side wall of the mounting plate, is capable of scraping the surface coating of a single substrate piece flat. A placement plate is fixedly connected to the side wall of the mounting plate. A recycling bin is fixedly connected to the upper side wall of the placement plate. An air pump is connected to the side wall of the recycling bin. A recycling assembly is connected to the side wall of the recycling bin away from the air pump. A separation component, located on the side wall of the conveyor belt mechanism, prevents the dressing from adhering to the conveyor belt mechanism.

[0007] In the aforementioned medical dressing application device, the negative pressure assembly includes a negative pressure pump fixedly connected to the side wall of the conveyor belt mechanism fixing part. The suction end of the negative pressure pump is connected to a negative pressure cover. The lower side wall of the negative pressure cover is connected to multiple support frames. The support frames are connected to the side wall of the conveyor belt mechanism fixing part. The side wall of the conveyor belt mechanism transport part is provided with multiple negative pressure holes. A single substrate is placed above the negative pressure holes. The negative pressure cover is in contact with the inner wall of the conveyor belt mechanism transport part.

[0008] In the aforementioned medical dressing application device, the scraper assembly includes a horizontal plate fixedly connected to the side wall of the mounting plate, and two elastic rods fixedly connected to the lower side wall of the horizontal plate, with the lower ends of the two elastic rods fixedly connected to the same scraper body.

[0009] In the aforementioned medical dressing application device, the recycling component includes a recycling tube connected to a recycling bin, with a recycling head fixedly connected to one end of the recycling tube away from the recycling bin, and a scraping block connected to the side wall of the recycling head.

[0010] In the aforementioned medical dressing application device, the separation component includes a curved plate fixedly connected to the side wall of the fixed part of the conveyor belt mechanism. Four guide rollers are rotatably connected to the side wall of the curved plate, and a drive motor is connected to the side wall of the curved plate. The output end of the drive motor is connected to one of the guide rollers. The outer walls of the four guide rollers are fitted with the same guide belt. Multiple curved rods are fixedly connected to the outer wall of the guide belt. An elastic element is fixedly connected to the end of the curved rod away from the guide belt. A separation plate is fixedly connected to the telescopic end of the elastic element. The two ends of the separation plate are inclined structures.

[0011] In the aforementioned medical dressing application device, a fixing frame is fixedly connected to the upper side wall of the mounting frame, and two vertical rods are fixedly connected to the upper inner wall of the fixing frame. The lower ends of the two vertical rods are fixedly connected to the same drying chamber. The lower side wall of the drying chamber has multiple drying holes. A heating chamber and an air pump are connected to the side wall of the fixing frame. The air outlet of the air pump is connected to the heating chamber. An air supply pipe is connected to the upper side wall of the heating chamber. The end of the air supply pipe away from the heating chamber is connected to the drying chamber.

[0012] In the above-mentioned medical dressing application device, a lifting plate is connected to the side wall of the scraper body, and a roller is connected to the lower side wall of the lifting plate.

[0013] In the above-mentioned medical dressing application device, the air inlet end of the air pump is provided with a filter cover, and a filter screen is provided inside the filter cover.

[0014] Compared with existing technologies, the advantages of a medical dressing application device are: 1. When the present invention uses a coating head to coat medical aqueous colloidal dressing onto a substrate sheet, a separation plate is automatically attached at the interval between two adjacent substrate sheets, which allows the coating head to continuously perform coating work. This avoids the problem of uneven adhesive thickness on the surface of the substrate sheet and excessive overall thickness tolerance caused by frequent start and stop of the coating head, thus ensuring the consistency of the quality of medical dressing products.

[0015] 2. After the coating head of this invention coats the hydrocolloid onto the separation plate, and the separation plate is subsequently separated from the substrate and rotated upwards, the hydrocolloid adhering to the surface of the separation plate can be scraped off using a scraper block. At the same time, the gas inside the recovery box is extracted using an air pump, allowing external gas to enter the recovery box through the recovery head and recovery pipe. The hydrocolloid that slides off the scraper block into the recovery head will flow into the recovery box for recovery under the influence of airflow, and can be reused after simple processing.

[0016] 3. In this invention, the die-cut substrate sheet is placed on the surface of the conveyor belt mechanism, and the spacing between two adjacent substrate sheets is the same. Moreover, each substrate sheet is located above the corresponding negative pressure hole. During the process of the conveyor belt mechanism transporting the substrate sheet, the negative pressure pump extracts the gas inside the negative pressure cover, and the negative pressure cover is in contact with the inner wall of the transport part of the conveyor belt mechanism, so that the negative pressure hole is kept in a negative pressure state. The negative pressure hole uses negative pressure to firmly adsorb the substrate sheet on the surface of the conveyor belt mechanism and maintain stability. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of a medical dressing coating device provided by the present invention; Figure 2 This is a schematic diagram showing the positional relationship between the conveyor belt mechanism and the negative pressure pump in this invention; Figure 3 This is a schematic diagram of the negative pressure component in this invention; Figure 4 This is a schematic diagram of the surface structure of the fixing frame in this invention; Figure 5 This is a schematic diagram showing the positional relationship between the storage tank and the delivery pump in this invention; Figure 6 This is a schematic diagram of the structure of the separation component in this invention; Figure 7 This is a schematic diagram of the structure of the recycling component in this invention; Figure 8 This is a schematic diagram of the scraper assembly in this invention.

[0018] In the diagram: 1. Mounting frame, 2. Conveyor belt mechanism, 3. Mounting plate, 4. Storage bin, 5. Conveying pump, 6. Coating head, 7. Placement plate, 8. Recovery bin, 9. Air pump, 10. Negative pressure assembly, 101. Negative pressure pump, 102. Negative pressure cover, 11. Support frame, 12. Negative pressure hole, 13. Scraper assembly, 131. Horizontal plate, 132. Elastic rod, 14. Scraper body, 15. Recovery assembly, 151. Recovery pipe, 152. Recovery head, 16. Scraper block, 17. Separation assembly, 171. Bending plate, 172. Guide roller, 18. Guide belt, 19. Bending rod, 20. Elastic element, 21. Separation plate, 22. Fixing frame, 23. Vertical rod, 24. Drying box, 25. Drying hole, 26. Heating box, 27. Air pump, 28. Air supply pipe, 29. Lifting plate, 30. Roller, 31. Filter cover, 32. Drive motor. Detailed Implementation

[0019] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0020] like Figures 1-3 As shown, a medical dressing coating device includes a mounting frame 1. The upper side wall of the mounting frame 1 is provided with a conveyor belt mechanism 2 and a mounting plate 3. The side wall of the mounting plate 3 is connected to a storage box 4. The side wall of the storage box 4 is connected to a conveying pump 5. The discharge end of the conveying pump 5 passes through the mounting plate 3 and is connected to a coating head 6. The device also includes a negative pressure component 10, which is disposed inside the conveyor belt mechanism 2 and can improve the placement stability of the substrate sheet on the surface of the conveyor belt mechanism 2. The negative pressure component 10 includes a negative pressure pump 101 fixedly connected to the side wall of the fixed part of the conveyor belt mechanism 2. The suction end of the negative pressure pump 101 is connected to a negative pressure cover 102. The lower side wall of the negative pressure cover 102 is connected to multiple support frames 11. The support frames 11 are connected to the side wall of the fixed part of the conveyor belt mechanism 2. The side wall of the transport part of the conveyor belt mechanism 2 is provided with multiple negative pressure holes 12. The substrate sheet is placed above the negative pressure holes 12. The negative pressure cover 102 is in contact with the inner wall of the transport part of the conveyor belt mechanism 2.

[0021] In actual use, in this embodiment, the die-cut substrate sheets are placed on the surface of the conveyor belt mechanism 2 by an external feeding mechanism, and the spacing between two adjacent substrate sheets is the same. Each substrate sheet is located above the corresponding negative pressure hole 12. During the process of the conveyor belt mechanism 2 transporting the substrate sheets, the negative pressure pump 101 extracts the gas inside the negative pressure cover 102, and the negative pressure cover 102 is attached to the inner wall of the transport part of the conveyor belt mechanism 2, so that the negative pressure hole 12 is kept in a negative pressure state. The negative pressure hole 12 uses negative pressure to firmly adsorb the substrate sheets on the surface of the conveyor belt mechanism 2 and maintain stability.

[0022] like Figure 6 and Figure 8As shown, the scraper assembly 13 is disposed on the side wall of the mounting plate 3 and can scrape the surface coating of a single substrate flat. The scraper assembly 13 includes a horizontal plate 131 fixedly connected to the side wall of the mounting plate 3. Two elastic rods 132 are fixedly connected to the lower side wall of the horizontal plate 131. The lower ends of the two elastic rods 132 are fixedly connected to the same scraper body 14. A lifting plate 29 is connected to the side wall of the scraper body 14, and a roller 30 is connected to the lower side wall of the lifting plate 29.

[0023] In actual use, in this embodiment, when the substrate sheet coated with hydrocolloid dressing moves to the front of the scraper body 14, the roller 30 located on one side of the scraper body 14 will first contact the blank area of ​​the substrate sheet, and the roller 30 will drive the scraper body 14 to move upward a certain distance through the lifting plate 29, so that the scraper body 14 and the substrate sheet maintain a distance of 1.2mm. When the substrate sheet passes under the scraper body 14, the scraper body 14 will be used to scrape the hydrocolloid on the substrate sheet flat.

[0024] like Figure 5 and Figure 6 As shown, the separation component 17 is disposed on the side wall of the conveyor belt mechanism 2, which can prevent the dressing from adhering to the conveyor belt mechanism 2. The separation component 17 includes a curved plate 171 fixedly connected to the side wall of the fixed part of the conveyor belt mechanism 2. Four guide rollers 172 are rotatably connected to the side wall of the curved plate 171. A drive motor 32 is connected to the side wall of the curved plate 171. The output end of the drive motor 32 is connected to one of the guide rollers 172. The outer wall of the four guide rollers 172 is fitted with the same guide belt 18. Multiple curved rods 19 are fixedly connected to the outer wall of the guide belt 18. An elastic element 20 is fixedly connected to the end of the curved rod 19 away from the guide belt 18. A separation plate 21 is fixedly connected to the telescopic end of the elastic element 20. The two ends of the separation plate 21 are inclined structures, and the surface of the separation plate 21 is coated with an anti-stick coating.

[0025] In actual use, in this embodiment, when the conveyor belt mechanism 2 moves the uniformly spaced substrate sheets toward the coating head 6, the drive motor 32 will drive the guide roller 172 to rotate (there can be multiple drive motors 32, driving multiple guide rollers 172 to rotate simultaneously). The guide roller 172 will drive the guide belt 18 sleeved on the outside to rotate. The guide belt 18 drives multiple separation plates 21 to rotate together through multiple bent rods 19 and elastic elements 20. When the separation plate 21 moves to the surface of the conveyor belt mechanism 2, it will be located in the middle of the two substrate sheets. When the coating head 6 works in the subsequent process, the hydrocolloid dressing will be continuously coated on the surface of the separation plate 21 and the substrate sheets, and it is not necessary to control the coating head 6 to work intermittently.

[0026] like Figures 5-7As shown, a placement plate 7 is fixedly connected to the side wall of the mounting plate 3. A recycling box 8 is fixedly connected to the upper side wall of the placement plate 7. An air pump 9 is connected to the side wall of the recycling box 8. A recycling assembly 15 is connected to the side wall of the recycling box 8 away from the air pump 9. The recycling assembly 15 includes a recycling pipe 151 connected to the recycling box 8. A recycling head 152 is fixedly connected to the end of the recycling pipe 151 away from the recycling box 8. A scraper block 16 is connected to the side wall of the recycling head 152.

[0027] In actual use, in this embodiment, when the guide belt 18 drives the separation plate 21 to rotate upward through the bent rod 19 and the elastic element 20, the separation plate 21 will come into contact with the scraper block 16 when it passes the scraper block 16. The scraper block 16 will scrape off a small amount of hydrocolloid adhering to the surface of the separation plate 21. At the same time, the vacuum pump 9 will extract the gas inside the recycling box 8. The external gas will enter the recycling box 8 through the recycling head 152 and the recycling pipe 151. The hydrocolloid that slides from the scraper block 16 into the recycling head 152 will flow into the recycling box 8 for recycling under the airflow. It can be reused after simple processing.

[0028] like Figure 1 and Figure 4 As shown, a fixing frame 22 is fixedly connected to the upper side wall of the mounting frame 1. Two vertical rods 23 are fixedly connected to the upper inner wall of the fixing frame 22. The lower ends of the two vertical rods 23 are fixedly connected to the same drying box 24. Multiple drying holes 25 are opened on the lower side wall of the drying box 24. A heating box 26 and an air pump 27 are connected to the side wall of the fixing frame 22. The air outlet of the air pump 27 is connected to the heating box 26. An air supply pipe 28 is connected to the upper side wall of the heating box 26. The end of the air supply pipe 28 away from the heating box 26 is connected to the drying box 24. A filter cover 31 is provided at the air inlet of the air pump 27. A filter screen is provided inside the filter cover 31.

[0029] In actual use, in this embodiment, when the substrate sheet coated with hydrocolloid passes under the fixing frame 22, the air pump 27 will deliver external gas to the heating box 26 for heating. The heated gas is delivered to the drying box 24 through the air supply pipe 28, and then sprayed out through the drying hole 25 to dry the hydrocolloid below.

[0030] The operating principle of the present invention is explained as follows: The die-cut substrate sheet is placed on the surface of the conveyor belt mechanism 2 by the external feeding mechanism, and the spacing between two adjacent substrate sheets is the same. Each substrate sheet is located above the corresponding negative pressure hole 12. Then, the negative pressure component 10 firmly adsorbs the substrate sheet on the surface of the conveyor belt mechanism 2. When the conveyor belt mechanism 2 transports the substrate sheet, the controller controls the separation component 17 to work, so that the multiple separation plates 21 inside the separation component 17 respectively adhere to the two adjacent substrate sheets below, and block part of the two ends of the substrate sheet. When the separation plate 21 and the substrate sheet pass under the coating head 6, the coating head 6 does not need to work intermittently, and can coat a certain area of ​​hydrocolloid dressing on the two substrate sheets. Since the two ends of the separation plate 21 are inclined structures, when the separation plate 21 and the substrate sheet pass the scraper body 14, when the scraper body 14 slides off the separation plate 21 and slides onto the substrate sheet, the hydrocolloid can be evenly transferred.

[0031] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A medical dressing application device, comprising a mounting frame (1), wherein the upper side wall of the mounting frame (1) is provided with a conveyor belt mechanism (2) and a mounting plate (3), the side wall of the mounting plate (3) is connected to a storage box (4), the side wall of the storage box (4) is connected to a conveying pump (5), the discharge end of the conveying pump (5) passes through the mounting plate (3) and is connected to a coating head (6), characterized in that, Also includes: Scraper assembly (13) is disposed on the side wall of the mounting plate (3); Placement plate (7) is fixedly connected to the side wall of mounting plate (3). A recycling box (8) is fixedly connected to the upper side wall of placement plate (7). A vacuum pump (9) is connected to the side wall of recycling box (8). A recycling assembly (15) is connected to the side wall of recycling box (8) away from vacuum pump (9). Separation component (17) is disposed on the side wall of the conveyor belt mechanism (2).

2. The medical dressing application device according to claim 1, characterized in that, The conveyor belt mechanism (2) is provided with a negative pressure component (10) inside. The negative pressure component (10) includes a negative pressure pump (101) fixedly connected to the side wall of the fixed part of the conveyor belt mechanism (2). The suction end of the negative pressure pump (101) is connected to a negative pressure cover (102). The lower side wall of the negative pressure cover (102) is connected to multiple support frames (11). The support frames (11) are connected to the side wall of the fixed part of the conveyor belt mechanism (2). The side wall of the transport part of the conveyor belt mechanism (2) is provided with multiple negative pressure holes (12). A single substrate is placed above the negative pressure holes (12). The negative pressure cover (102) is attached to the inner wall of the transport part of the conveyor belt mechanism (2).

3. The medical dressing application device according to claim 1, characterized in that, The scraper assembly (13) includes a horizontal plate (131) fixedly connected to the side wall of the mounting plate (3). Two elastic rods (132) are fixedly connected to the lower side wall of the horizontal plate (131), and the lower ends of the two elastic rods (132) are fixedly connected to the same scraper body (14).

4. The medical dressing application device according to claim 1, characterized in that, The recycling assembly (15) includes a recycling pipe (151) connected to the recycling bin (8). A recycling head (152) is fixedly connected to one end of the recycling pipe (151) away from the recycling bin (8). A scraper block (16) is connected to the side wall of the recycling head (152).

5. A medical dressing application device according to claim 1, characterized in that, The separation component (17) includes a bent plate (171) fixedly connected to the side wall of the fixed part of the conveyor belt mechanism (2). Four guide rollers (172) are rotatably connected to the side wall of the bent plate (171). A drive motor (32) is connected to the side wall of the bent plate (171). The output end of the drive motor (32) is connected to one of the guide rollers (172). The outer walls of the four guide rollers (172) are fitted with the same guide belt (18). Multiple bent rods (19) are fixedly connected to the outer wall of the guide belt (18). An elastic element (20) is fixedly connected to the end of the bent rod (19) away from the guide belt (18). A separation plate (21) is fixedly connected to the telescopic end of the elastic element (20). The two ends of the separation plate (21) are inclined structures.

6. The medical dressing application device according to claim 1, characterized in that, The upper side wall of the mounting bracket (1) is fixedly connected to a fixing bracket (22), and the upper inner wall of the fixing bracket (22) is fixedly connected to two vertical rods (23). The lower ends of the two vertical rods (23) are fixedly connected to the same drying box (24). The lower side wall of the drying box (24) is provided with multiple drying holes (25). The side wall of the fixing bracket (22) is connected to a heating box (26) and an air pump (27). The air outlet of the air pump (27) is connected to the heating box (26). The upper side wall of the heating box (26) is connected to an air supply pipe (28). The end of the air supply pipe (28) away from the heating box (26) is connected to the drying box (24).

7. A medical dressing application device according to claim 3, characterized in that, The scraper body (14) has a lifting plate (29) connected to its side wall, and a roller (30) is connected to the lower side wall of the lifting plate (29).

8. A medical dressing application device according to claim 6, characterized in that, The air pump (27) has a filter cover (31) at its air inlet end, and a filter screen is provided inside the filter cover (31).

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