A medical patch coating and laminating machine
By using the worm gear transmission system and motor drive device of the medical patch coating and laminating machine, the problem of non-adjustable ointment coating thickness has been solved, enabling diversified production of drug coating thickness adjustment and quick replacement of the spinning shaft, thus improving production efficiency and flexibility.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 云南省食品药品审核查验中心(云南省疫苗检查中心)
- Filing Date
- 2025-07-30
- Publication Date
- 2026-07-03
AI Technical Summary
Existing medical patch production equipment has difficulty adjusting the thickness of the ointment coating, resulting in an inability to adapt to the needs of various products, insufficient production flexibility, and impact on diversified production.
A medical patch coating and laminating machine was designed. The sliding of the coating block is adjusted through a worm gear transmission system to achieve precise control of drug dosage. The clamping and replacement of the fabric shaft are driven by a motor to ensure continuous production.
It enables precise adjustment of drug coating thickness, adapts to various product requirements, reduces downtime and raw material consumption, and improves production efficiency and flexibility.
Smart Images

Figure CN224443498U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of medical device manufacturing technology, and in particular to a medical patch coating and laminating machine. Background Technology
[0002] Medical patch coating is a key process that involves uniformly coating a drug matrix such as ointment or gel onto a substrate such as nonwoven fabric or film to form a medical patch. It is necessary to ensure precise coating amount and uniform coating to ensure stable efficacy. The production of medical patches involves multiple steps such as substrate unwinding, coating, lamination, and slitting. It is difficult to achieve both precision and efficiency by working manually or with a single piece of equipment, and it is also prone to contamination. Therefore, a medical patch coating and lamination machine is needed to integrate the various processes, realize automated continuous production, and meet medical-grade hygiene standards.
[0003] In the production of medical patches, the thickness of the ointment coating cannot be adjusted according to production needs. The adaptability to different substrates and product requirements is limited, resulting in insufficient production flexibility and a weak ability to adapt to products with various thicknesses. This restricts the efficient production of diversified medical patches and fails to meet diverse production needs. Utility Model Content
[0004] To overcome the above shortcomings, this utility model provides a medical patch coating and laminating machine, which aims to improve the problem that the coating thickness is not adjustable, resulting in the inability to adapt to the production of various products.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a medical patch coating and laminating machine, comprising a base plate, a housing fixedly connected to the upper surface of the base plate, a first motor fixedly connected to the outer wall of the housing, a worm gear fixedly installed at the output end of the first motor, a worm wheel meshing with the tooth end of the worm gear, a support column rotatably connected inside the worm wheel, the lower surface of the support column fixedly connected to the upper surface of the support, a lead screw threadedly connected inside the worm wheel, an application block fixedly connected to the lower surface of the lead screw, the outer wall of the application block slidably connected to the inside of the support, the outer wall of the application block slidably connected to the inside of the base plate, and a feeding assembly provided on the upper surface of the support for controlling the feeding of the medicine.
[0006] Preferably, the feeding assembly includes a medicine tank, the lower surface of which is fixedly connected to the upper surface of the support, and a sliding plate is slidably connected inside the medicine tank.
[0007] Preferably, a side plate is fixedly connected to the outer wall of the base plate, a support leg is fixedly connected to the lower surface of the side plate, and the upper surface of the support leg is fixedly connected to the lower surface of the base plate.
[0008] Preferably, a second motor is fixedly connected to the lower surface of the side plate, and a rotating plate is fixedly provided at the output end of the second motor.
[0009] Preferably, a push plate is rotatably connected to the outer wall of the rotating plate, and a connecting plate is rotatably connected to the inside of the push plate.
[0010] Preferably, a first support plate is fixedly connected to the outer wall of the connecting plate, the outer wall of the first support plate is slidably connected to the inside of the side plate, and a fabric shaft is slidably connected to the inside of the first support plate.
[0011] Preferably, a second support plate is fixedly connected to the upper surface of the base plate, a first rotating shaft is rotatably connected inside the second support plate, and a third support plate is fixedly connected to the outer wall of the base plate.
[0012] Preferably, a third motor is fixedly connected to the outer wall of the third support plate, a pull shaft is fixedly provided at the output end of the third motor, and a guide plate is fixedly connected to the upper surface of the base plate.
[0013] This utility model has the following beneficial effects:
[0014] 1. In this utility model, when the worm gear rotates, the coating block slides and rises inside the support through the screw connected by the internal thread, coating the fabric moving below, and the coating thickness can be adjusted to achieve precise control of drug dosage, so as to adapt to products of various thicknesses and help to efficiently produce diversified medical patches.
[0015] 2. In this utility model, the rotation of the push plate causes the first support plate to slide inside the side plate through the connecting plate, thereby clamping the fabric shaft without affecting the rotation of the fabric shaft. This facilitates the replacement of the fabric shaft, significantly shortens the downtime for shaft replacement, reduces production line interruption time, reduces raw material loss and product defect rate, and helps achieve efficient and stable production. Attached Figure Description
[0016] Figure 1 This is a three-dimensional schematic diagram of a medical patch coating and laminating machine proposed in this utility model;
[0017] Figure 2 This is a schematic diagram of the internal structure of a medical patch coating and laminating machine according to the present invention.
[0018] Figure 3 This is a schematic diagram of the internal structure of the support frame of a medical patch coating and laminating machine proposed in this utility model;
[0019] Figure 4 This is a schematic diagram of the rotating plate structure of a medical patch coating and laminating machine proposed in this utility model;
[0020] Figure 5 This is a schematic diagram of the coating block structure of a medical patch coating and laminating machine proposed in this utility model.
[0021] Legend:
[0022] 1. Base plate; 2. Bracket; 3. Housing; 4. First motor; 5. Worm gear; 6. Worm wheel; 7. Support column; 8. Lead screw; 9. Application block; 10. Agent tank; 11. Sliding plate; 12. Side plate; 13. Second motor; 14. Rotating plate; 15. Push plate; 16. Connecting plate; 17. First support plate; 18. Spinning shaft; 19. Second support plate; 20. First rotating shaft; 21. Third support plate; 22. Third motor; 23. Pulling shaft; 24. Support leg; 25. Guide plate. Detailed Implementation
[0023] The technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.
[0024] Reference Figures 1-3 An embodiment of this utility model provides a medical patch coating and laminating machine, comprising a base plate 1, a housing 3 fixedly connected to the upper surface of the base plate 1, a first motor 4 fixedly connected to the outer wall of the housing 3, a worm gear 5 fixedly provided at the output end of the first motor 4, a worm wheel 6 meshing with the tooth end of the worm gear 5, a support column 7 rotatably connected inside the worm wheel 6, a lead screw 8 fixedly connected to the lower surface of the support column 7, a coating block 9 fixedly connected to the lower surface of the lead screw 8, a coating block 9 slidably connected to the outer wall of the coating block 9 inside the support 2, a coating block 9 slidably connected to the inner surface of the base plate 1, and a feeding assembly provided on the upper surface of the support 2 for controlling the feeding of the medicine.
[0025] Specifically, the base plate 1 fixes the housing 3, and the housing 3 fixes the first motor 4. When the first motor 4 is started, it drives the worm 5 at the output end to rotate. The bracket 2 fixes the support column 7. When the worm 5 rotates, it drives the worm wheel 6, which is meshed with the tooth end, to rotate on the outer wall of the support column 7. The support column 7 supports the rotation of the worm wheel 6. The lead screw 8 fixes the coating block 9. When the worm wheel 6 rotates, the lead screw 8, which is internally threaded, pulls the coating block 9 to slide inside the bracket 2. The bracket 2 supports the sliding of the coating block 9, thereby raising the coating block 9 to adjust the coating thickness.
[0026] Reference Figures 1-3The feeding assembly includes a medicine tank 10, the lower surface of which is fixedly connected to the upper surface of the support 2, and a sliding plate 11 is slidably connected inside the medicine tank 10.
[0027] Specifically, the medicine tank 10 is fixed by the bracket 2. When the ointment inside the application block 9 is insufficient, the sliding plate 11 is pulled to slide inside the medicine tank 10 so that the ointment flows down to achieve the function of feeding.
[0028] Reference Figure 1 and Figure 4 A side plate 12 is fixedly connected to the outer wall of the base plate 1. A support leg 24 is fixedly connected to the lower surface of the side plate 12. The upper surface of the support leg 24 is fixedly connected to the lower surface of the base plate 1. A second motor 13 is fixedly connected to the lower surface of the side plate 12. A rotating plate 14 is fixedly installed at the output end of the second motor 13. A push plate 15 is rotatably connected to the outer wall of the rotating plate 14. A connecting plate 16 is rotatably connected to the inside of the push plate 15. A first support plate 17 is fixedly connected to the outer wall of the connecting plate 16. The outer wall of the first support plate 17 is slidably connected to the inside of the side plate 12. A weaving shaft 18 is slidably connected to the inside of the first support plate 17.
[0029] Specifically, the side plate 12 is fixed by the base plate 1, the support leg 24 is fixed by the side plate 12 and the base plate 1, and the second motor 13 is fixed by the side plate 12. When the second motor 13 is started, it drives the rotating plate 14 at the output end to rotate. When the rotating plate 14 rotates, it pulls the connecting plate 16 by the push plate 15. The connecting plate 16 is fixed by the first support plate 17. Then, when the connecting plate 16 moves, it drives the first support plate 17 to move synchronously inside the side plate 12 to fix the position of the spinning shaft 18. The first support plate 17 fixes the spinning shaft 18 in the starting position without affecting the rotation, thereby realizing the quick disassembly of the spinning shaft 18. The side plate 12 plays the role of supporting the sliding and limiting the first support plate 17.
[0030] Reference Figure 1 , Figure 4 and Figure 5 A second support plate 19 is fixedly connected to the upper surface of the base plate 1. A first rotating shaft 20 is rotatably connected inside the second support plate 19. A third support plate 21 is fixedly connected to the outer wall of the base plate 1. A third motor 22 is fixedly connected to the outer wall of the third support plate 21. A pulling shaft 23 is fixedly installed at the output end of the third motor 22. A guide plate 25 is fixedly connected to the upper surface of the base plate 1.
[0031] Specifically, the third support plate 21 is fixed by the base plate 1, the third motor 22 is fixed by the third support plate 21, and the second support plate 19 is fixed by the base plate 1. The fabric pulled by the spinning shaft 18 is guided by the guide plate 25 to drive the first rotating shaft 20 to rotate inside the second support plate 19. The second support plate 19 supports the rotation and fixes the position of the first rotating shaft 20. When the third motor 22 starts, it drives the pulling shaft 23 at the output end to rotate, thereby pulling the fabric.
[0032] Working principle: When the device is needed, the second motor 13 is started, which causes the push plate 15 to rotate through the rotating plate 14 at the output end. When the push plate 15 rotates, the first support plate 17 is pulled by the connecting plate 16 to slide inside the side plate 12, thereby clamping the spinning shaft 18 without affecting its rotation. This facilitates the replacement of the spinning shaft 18, significantly shortens the downtime for shaft replacement, reduces production line interruption time, improves continuous production efficiency, simplifies the operation process, reduces manual labor intensity, and reduces fatigue and errors during shaft replacement. This reduces raw material loss and product defect rate, and helps achieve efficient and stable production. The spinning fabric is pulled along the guide plate 25. The second support plate 19 rotates through the first rotating shaft 20, and the spinning fabric rotates on the outer wall of the first rotating shaft 20. The third motor 22 on the outer wall of the third support plate 21 is started, which rotates the pull shaft 23 at the output end to pull the spinning fabric, providing assistance for subsequent coating.
[0033] After the fabric is properly moved, the ointment is placed inside the medicine tank 10. The sliding plate 11 is pulled to allow the ointment inside the medicine tank 10 to flow into the application block 9. The first motor 4 on the outer wall of the housing 3 is started to rotate the worm gear 5 at the output end, causing the worm wheel 6, which is connected to the tooth end, to rotate on the outer wall of the support column 7. As the worm wheel 6 rotates, the application block 9 slides and rises inside the bracket 2 through the screw 8 connected by the internal thread, coating the fabric moving below. The coating thickness can be adjusted to achieve precise control of the drug dosage, ensure stable efficacy, avoid excessive or insufficient dosage, adapt to different substrates and product requirements, improve production flexibility, reduce raw material waste, lower production costs, and achieve the effect of adapting to products of various thicknesses, thus helping to efficiently produce diversified medical patches.
[0034] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A medical patch coating complex machine comprising a base plate (1), characterized in that: A housing (3) is fixedly connected to the upper surface of the base plate (1). A first motor (4) is fixedly connected to the outer wall of the housing (3). A worm gear (5) is fixedly installed at the output end of the first motor (4). A worm wheel (6) is meshed with the tooth end of the worm gear (5). A support column (7) is rotatably connected inside the worm wheel (6). The lower surface of the support column (7) is fixedly connected to the upper surface of the bracket (2). A lead screw (8) is threaded inside the worm wheel (6). A coating block (9) is fixedly connected to the lower surface of the lead screw (8). The outer wall of the coating block (9) is slidably connected to the inside of the bracket (2). The outer wall of the coating block (9) is slidably connected to the inside of the base plate (1). A feeding assembly is provided on the upper surface of the bracket (2). The feeding assembly is used to control the feeding of the medicine.
2. The medical patch coating compounder according to claim 1, characterized in that: The feeding assembly includes a medicine tank (10), the lower surface of which is fixedly connected to the upper surface of the support (2), and a sliding plate (11) is slidably connected inside the medicine tank (10).
3. The medical patch coating compounder according to claim 1, characterized in that: The outer wall of the base plate (1) is fixedly connected to a side plate (12), the lower surface of the side plate (12) is fixedly connected to a support leg (24), and the upper surface of the support leg (24) is fixedly connected to the lower surface of the base plate (1).
4. The medical patch coating compounder according to claim 3, characterized in that: The lower surface of the side plate (12) is fixedly connected to a second motor (13), and a rotating plate (14) is fixedly installed at the output end of the second motor (13).
5. The medical patch coating compounder according to claim 4, characterized in that: The outer wall of the rotating plate (14) is rotatably connected to a push plate (15), and the inside of the push plate (15) is rotatably connected to a connecting plate (16).
6. The medical patch coating compounder according to claim 5, characterized in that: The outer wall of the connecting plate (16) is fixedly connected to a first support plate (17), the outer wall of the first support plate (17) is slidably connected to the inside of the side plate (12), and the inside of the first support plate (17) is slidably connected to a spinning shaft (18).
7. The medical patch coating compounder according to claim 1, characterized in that: A second support plate (19) is fixedly connected to the upper surface of the base plate (1), and a first rotating shaft (20) is rotatably connected inside the second support plate (19). A third support plate (21) is fixedly connected to the outer wall of the base plate (1).
8. The medical patch coating compounder according to claim 7, characterized in that: The outer wall of the third support plate (21) is fixedly connected to a third motor (22), and the output end of the third motor (22) is fixedly provided with a pull shaft (23). The upper surface of the base plate (1) is fixedly connected to a guide plate (25).