A wound repair material sealing device containing sodium hyaluronate
By designing a heat-sealing device with a sliding mounting bracket and linkage mechanism, combined with an online self-cleaning system of roller brushes and scrapers, the problems of production line downtime and contaminant adhesion during the packaging of sodium hyaluronate wound repair materials were solved, achieving efficient and stable sealing and ensuring a sterile environment.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- NANJING DONGWAN BIOTECHNOLOGY CO LTD
- Filing Date
- 2025-07-05
- Publication Date
- 2026-06-30
AI Technical Summary
Existing heat-sealing equipment has problems such as long production line downtime, low efficiency in adapting to multiple packaging specifications, and unstable heat-sealing strength when packaging sodium hyaluronate wound repair materials. In addition, contaminants are easy to adhere to the surface of the heat-sealing head during the heat-sealing process, which may lead to the risk of microbial invasion.
A wound repair material sealing device containing sodium hyaluronate was designed. It adopts a sliding mounting frame and linkage mechanism to achieve rapid and precise adjustment of the spacing and angle of the heat sealing head. It is also equipped with a roller brush and a scraper brush for online self-cleaning to prevent contaminants from accumulating on the surface of the heat sealing head.
It significantly improves the adaptability of multi-size packaging, ensures the stability of heat sealing strength and the safety of the sterile environment, and reduces downtime and manual cleaning requirements.
Smart Images

Figure CN224428144U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of sealing and packaging technology, specifically to a sealing device for wound repair materials containing sodium hyaluronate. Background Technology
[0002] Sodium hyaluronate has strong hydrophilicity and can absorb 1,000 times its own weight in water, creating a moist environment on the wound to promote cell migration and proliferation. However, its molecular structure is highly sensitive to temperature, light, and microbial contamination. Therefore, it needs to be sealed and packaged after production. In the packaging process of sodium hyaluronate wound repair materials, the heat sealing process is directly related to the sealing integrity of the product and the stability of the active ingredients.
[0003] Existing heat-sealing equipment generally uses fixed heat-sealing heads, which have a rigid connection structure. Replacement requires disassembling bolts and other fasteners, taking an average of 15-20 minutes per cycle. This results in long production line downtime and low efficiency in adapting to various packaging specifications. Furthermore, sodium hyaluronate is highly sensitive to temperature. During the heat-sealing process, residual material easily carbonizes at high temperatures and adheres to the surface of the heat-sealing head, forming contaminants that are difficult to remove. These contaminants not only reduce heat transfer efficiency and cause fluctuations in seal strength but may also peel off to the packaging interface, posing a risk of microbial intrusion and threatening the sterile environment. Utility Model Content
[0004] The purpose of this invention is to provide a sealing device for wound repair materials containing sodium hyaluronate, so as to solve the problems mentioned in the background art.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a wound repair material sealing device containing sodium hyaluronate, comprising a base, on which two sets of symmetrically distributed mounting frames are slidably mounted, and each set of mounting frames is rotatably mounted with a rotating frame. A first gear is sleeved on the rotating frame, and a first rack is slidably mounted inside the mounting frame, meshing with the first gear. A first cylinder is fixedly mounted inside the mounting frame, and the first rack is fixedly connected to the output end of the piston rod of the first cylinder. Four sets of symmetrically distributed heat sealing heads are rotatably mounted on the rotating frame. Two sets of slides are slidably mounted inside the base, and the two sets of slides are respectively fixedly connected to the two sets of mounting frames. A roller brush is rotatably mounted on the mounting frame, and the roller brush is correspondingly arranged with the heat sealing head below, and the roller brush is in contact with the heat sealing head.
[0006] As a further preferred embodiment of this technical solution, a third rack is fixedly installed on both sets of the slides, a third gear is provided between the two sets of the third racks, a third cylinder is fixedly installed in the base, and the upper slide is fixedly connected to the output end of the piston rod of the third cylinder.
[0007] As a further preferred embodiment of this technical solution, the third gear is meshed with two sets of third racks respectively, the third gear is rotatably connected to the base through a rotating rod, a torsion spring is sleeved on the rotating rod, and the two ends of the torsion spring are fixedly connected to the rotating rod and the base respectively.
[0008] As a further preferred embodiment of this technical solution, a scraper is rotatably mounted on the mounting bracket, the scraper is fitted with a roller brush, a second gear is sleeved on the scraper, a second rack is slidably mounted inside the mounting bracket, a second cylinder is fixedly mounted inside the mounting bracket, the second rack is meshed with the second gear, and the second rack is fixedly connected to the output end of the piston rod of the second cylinder.
[0009] As a further preferred embodiment of this technical solution, two sets of movable seats corresponding to the scraper are slidably mounted on the mounting frame, and a lead screw is rotatably mounted on the mounting frame, the lead screw passing through the movable seat and threadedly connected to the movable seat.
[0010] As a further preferred embodiment of this technical solution, a scraper block is slidably installed inside the movable seat, a fixing rod is fixedly installed inside the movable seat, and a cam is rotatably installed inside the movable seat, with the cam being fitted into the scraper block.
[0011] As a further preferred embodiment of this technical solution, the scraper block is slidably sleeved with the fixed rod, and two sets of symmetrically distributed springs are sleeved on the fixed rod, with the two sets of springs respectively fixedly connected to the scraper block and the movable seat.
[0012] This invention provides a sealing device for wound repair materials containing sodium hyaluronate, which has the following beneficial effects:
[0013] (1) This utility model uses two sets of mounting frames symmetrically slidably mounted on the base of the device. Driven by the slide and linkage mechanism such as the third cylinder, the third rack, and the third gear, the spacing of the heat sealing units can be quickly adjusted to adapt to different packaging widths. The rotating frame on each mounting frame and its four sets of heat sealing heads are driven by the first cylinder, which drives the first rack and the first gear to achieve synchronous and stepless adjustment of the working angle of the heat sealing head. This design completely eliminates the cumbersome steps of disassembling bolt fasteners required for traditional fixed heat sealing heads, and realizes rapid, accurate, and tool-free adjustment of the spacing and angle of the heat sealing heads. It significantly shortens the specification switching time, significantly improves the production line's adaptability and flexibility to multiple packaging specifications, and reduces downtime losses.
[0014] (2) This utility model integrates a highly efficient online self-cleaning cycle. Roller brushes, continuously in contact with the working surface of the heat-sealing head, are installed below the mounting frame. During the heat-sealing process or intervals, these brushes rotate actively or passively to physically remove residual, potentially carbonized materials from the heat-sealing head. To ensure the cleaning effect of the roller brushes themselves, the device is equipped with a scraper brush that fits against them. This scraper brush is driven to rotate by a second cylinder via a second rack and gear, promptly removing contaminants from the roller brush. Furthermore, a movable seat adjusted by a lead screw and an internal scraper block driven by a cam and returned to its original position by a spring can perform deep cleaning and maintenance on the scraper brush. This closed-loop cleaning system effectively prevents the accumulation of carbonized contaminants on the surface of the heat-sealing head, thereby maintaining the stability of heat transfer efficiency and sealing strength. It also eliminates the risk of contaminants peeling off and mixing into the sealing interface, fundamentally reducing the possibility of microbial intrusion, ensuring the safety of the product's sterile environment, and reducing the need for manual cleaning during downtime. Attached Figure Description
[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0016] Figure 2 This is a schematic diagram showing the structural separation of the base and mounting bracket of this utility model;
[0017] Figure 3 For the present utility model Figure 2 Enlarged view of the structure at point A;
[0018] Figure 4 This is a schematic diagram showing the structural separation of the mounting frame and the rotating frame of this utility model;
[0019] Figure 5 For the present utility model Figure 4 Enlarged view of the structure at point -B;
[0020] In the diagram: 1. Base; 2. Mounting bracket; 3. Rotating bracket; 4. First gear; 5. First rack; 6. First cylinder; 7. Slide; 8. Third rack; 9. Third gear; 10. Rotating rod; 11. Torsion spring; 12. Third cylinder; 13. Roller brush; 14. Scraper brush; 15. Second gear; 16. Second rack; 17. Second cylinder; 18. Moving seat; 19. Lead screw; 20. Scraper block; 21. Fixed rod; 22. Spring; 23. Cam; 24. Heat sealing head. Detailed Implementation
[0021] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.
[0022] This utility model provides a technical solution: such as Figure 1 , Figure 2 Figure 3As shown in this embodiment, a wound repair material sealing device containing sodium hyaluronate includes a base 1. Two sets of symmetrically distributed mounting frames 2 are slidably mounted on the base 1. A rotating frame 3 is rotatably mounted on each of the two sets of mounting frames 2. A first gear 4 is sleeved on the rotating frame 3. A first rack 5 is slidably mounted inside the mounting frame 2 and meshes with the first gear 4. A first cylinder 6 is fixedly mounted inside the mounting frame 2. The first rack 5 is fixedly connected to the output end of the piston rod of the first cylinder 6. Four sets of symmetrically distributed heat sealing heads 24 are rotatably mounted on the rotating frame 3. Two sets of slides 7 are slidably mounted inside the base 1 and are fixedly connected to the two sets of mounting frames 2 respectively. A roller brush 13 is rotatably mounted on the mounting frame 2. The roller brush 13 is correspondingly arranged with the heat sealing head 24 below and is in contact with the heat sealing head 24. A first gear 4 is fixedly mounted on each of the two sets of slides 7. The device has three racks 8, with a third gear 9 between the two sets of third racks 8. A third cylinder 12 is fixedly installed inside the base 1. The upper slide 7 is fixedly connected to the output end of the piston rod of the third cylinder 12. The third gear 9 is meshed with the two sets of third racks 8 respectively. The third gear 9 is rotatably connected to the base 1 through a rotating rod 10. A torsion spring 11 is sleeved on the rotating rod 10. The two ends of the torsion spring 11 are fixedly connected to the rotating rod 10 and the base 1 respectively. Through the two sets of mounting frames 2 symmetrically slidably installed on the device base 1, driven by the slide 7 and linkage mechanisms such as the third cylinder 12, the third rack 8, and the third gear 9, the spacing of the heat sealing units can be quickly adjusted to adapt to different packaging widths. The rotating frame 3 on each mounting frame 2 and its four sets of heat sealing heads 24 are driven by the first cylinder 6 to drive the first rack 5 and drive the first gear 4, realizing the synchronous and stepless adjustment of the working angle of the heat sealing head 24. This design completely eliminates the cumbersome steps of removing bolt fasteners required for traditional fixed heat sealing heads 24, enabling rapid, precise, and tool-free adjustment of the spacing and angle of the heat sealing heads 24. This significantly shortens the specification switching time, greatly improves the production line's adaptability and flexibility to multi-specification packaging, and reduces downtime losses.
[0023] like Figure 4 and Figure 5As shown, a scraper 14 is rotatably mounted on the mounting frame 2, and the scraper 14 is fitted against the roller brush 13. A second gear 15 is sleeved on the scraper 14. A second rack 16 is slidably mounted inside the mounting frame 2. A second cylinder 17 is fixedly mounted inside the mounting frame 2. The second rack 16 meshes with the second gear 15 and is fixedly connected to the output end of the piston rod of the second cylinder 17. Two sets of movable seats 18 corresponding to the scraper 14 are slidably mounted on the mounting frame 2. A lead screw 19 is rotatably mounted on the mounting frame 2, passing through the movable seats 18 and threadedly connected to them. A scraper block 20 is slidably mounted inside the movable seat 18. A fixing rod 21 is fixedly mounted inside the movable seat 18. A cam 23 is rotatably mounted inside the movable seat 18, and the cam 23 is fitted against the scraper block 20. The scraper block 20 and the fixing rod 21 are fitted together. 1. A sliding sleeve is provided. Two sets of symmetrically distributed springs 22 are sleeved on the fixed rod 21. The two sets of springs 22 are fixedly connected to the scraper block 20 and the moving seat 18 respectively. Through the integration of efficient online self-cleaning cycle, roller brushes 13 that are continuously in contact with the working surface of the heat sealing head 24 are provided below the mounting frame 2. They rotate actively or passively during the heat sealing process or the interval to physically remove residual and potentially carbonized materials on the heat sealing head 24. To ensure the cleaning effect of the roller brush 13 itself, the device is equipped with a scraper brush 14 that is in contact with it. The scraper brush 14 is driven to rotate by the second cylinder 17 through the second rack 16 and gears to remove contaminants on the roller brush 13 in time. Furthermore, the moving seat 18, which is adjusted by the lead screw 19, and the scraper block 20, which is driven by the cam 23 and reset by the spring 22, can perform deep cleaning and maintenance on the scraper brush 14. This closed-loop cleaning system effectively prevents carbonized contaminants from accumulating on the surface of the heat seal head 24, thereby maintaining the stability of heat transfer efficiency and sealing strength, eliminating the risk of contaminants peeling off and mixing into the sealing interface, fundamentally reducing the possibility of microbial intrusion, ensuring the sterile environment safety of the product, and reducing the need for manual cleaning during downtime.
[0024] This utility model provides a sealing device for wound repair materials containing sodium hyaluronate. The specific working principle is as follows: Two sets of mounting frames 2 are symmetrically slidably installed on the device base 1. Driven by the slide 7 and linkage mechanisms such as the third cylinder 12, the third rack 8, and the third gear 9, the spacing of the heat sealing units can be quickly adjusted to adapt to different packaging widths. The rotating frame 3 on each mounting frame 2 and its four sets of heat sealing heads 24 are driven by the first cylinder 6 to drive the first rack 5 and the first gear 4, so as to realize the synchronous and stepless adjustment of the working angle of the heat sealing head 24. This design completely eliminates the cumbersome steps of disassembling bolt fasteners required for traditional fixed heat sealing heads 24, enabling rapid, precise, and tool-free adjustment of the spacing and angle of the heat sealing heads 24. This significantly shortens the specification switching time, greatly improves the production line's adaptability and flexibility to multi-specification packaging, and reduces downtime losses. By integrating an efficient online self-cleaning cycle, roller brushes 13 are continuously attached to the working surface of the heat sealing heads 24 below each mounting frame 2. They rotate actively or passively during the heat sealing process or intervals to physically remove residual and potentially carbonized materials from the heat sealing heads 24. To ensure the cleaning effect of the roller brushes 13 themselves, the device is equipped with scrapers 14 that are attached to them. These scrapers are driven to rotate by the second cylinder 17 through the second rack 16 and gears, promptly removing contaminants from the roller brushes 13. Furthermore, the moving seat 18, adjusted by the lead screw 19, and the scraper block 20, driven by the cam 23 and reset by the spring 22, can perform deep cleaning and maintenance on the scraper brush 14. This closed-loop cleaning system effectively prevents carbonized contaminants from accumulating on the surface of the heat seal head 24, thereby maintaining the stability of heat transfer efficiency and sealing strength, eliminating the risk of contaminants peeling off and mixing into the sealing interface, fundamentally reducing the possibility of microbial intrusion, ensuring the sterile environment safety of the product, and reducing the need for manual cleaning during downtime.
[0025] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A wound repair material sealing device containing sodium hyaluronate, comprising a base (1), characterized in that: Two sets of symmetrically distributed mounting brackets (2) are slidably mounted on the base (1). A rotating bracket (3) is rotatably mounted on each of the two sets of mounting brackets (2). A first gear (4) is sleeved on the rotating bracket (3). A first rack (5) is slidably mounted inside the mounting bracket (2). The first rack (5) meshes with the first gear (4). A first cylinder (6) is fixedly mounted inside the mounting bracket (2). The first rack (5) is fixedly connected to the output end of the piston rod of the first cylinder (6). Four sets of symmetrically distributed heat sealing heads (24) are rotatably mounted on the rotating bracket (3). Two sets of slides (7) are slidably mounted inside the base (1). The two sets of slides (7) are fixedly connected to the two sets of mounting brackets (2) respectively. A roller brush (13) is rotatably mounted on the mounting bracket (2). The roller brush (13) is correspondingly set with the heat sealing head (24) below. The roller brush (13) is in close contact with the heat sealing head (24).
2. The wound repair material sealing device containing sodium hyaluronate according to claim 1, characterized in that: Both sets of slides (7) are fixedly installed with a third rack (8), and a third gear (9) is provided between the two sets of third racks (8). A third cylinder (12) is fixedly installed in the base (1), and the upper slide (7) is fixedly connected to the output end of the piston rod of the third cylinder (12).
3. The wound repair material sealing device containing sodium hyaluronate according to claim 2, characterized in that: The third gear (9) is meshed with two sets of third racks (8) respectively. The third gear (9) is rotatably connected to the base (1) through a rotating rod (10). A torsion spring (11) is sleeved on the rotating rod (10). The two ends of the torsion spring (11) are fixedly connected to the rotating rod (10) and the base (1) respectively.
4. The wound repair material sealing device containing sodium hyaluronate according to claim 1, characterized in that: A scraper (14) is rotatably mounted on the mounting bracket (2). The scraper (14) is fitted with a roller brush (13). A second gear (15) is sleeved on the scraper (14). A second rack (16) is slidably mounted inside the mounting bracket (2). A second cylinder (17) is fixedly mounted inside the mounting bracket (2). The second rack (16) is meshed with the second gear (15). The second rack (16) is fixedly connected to the output end of the piston rod of the second cylinder (17).
5. The wound repair material sealing device containing sodium hyaluronate according to claim 1, characterized in that: Two sets of movable seats (18) corresponding to the scraper (14) are slidably installed on the mounting frame (2). A lead screw (19) is rotatably installed on the mounting frame (2). The lead screw (19) passes through the movable seat (18) and is threadedly connected to the movable seat (18).
6. The wound repair material sealing device containing sodium hyaluronate according to claim 5, characterized in that: A scraper (20) is slidably installed inside the movable seat (18), a fixed rod (21) is fixedly installed inside the movable seat (18), and a cam (23) is rotatably installed inside the movable seat (18). The cam (23) is fitted to the scraper (20).
7. The wound repair material sealing device containing sodium hyaluronate according to claim 6, characterized in that: The scraper (20) is slidably sleeved with the fixed rod (21), and two sets of symmetrically distributed springs (22) are sleeved on the fixed rod (21). The two sets of springs (22) are respectively fixedly connected to the scraper (20) and the movable seat (18).