A coating nozzle integrating double material pre-mixing
By incorporating a material storage tank and a mixing paddle into the coating nozzle, the problem of uneven mixing in traditional coating nozzles is solved, achieving uniform mixing and spraying of materials, thus improving production efficiency and product quality.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- MATSUMOTO COATING TECH KUNSHAN CO LTD
- Filing Date
- 2025-06-05
- Publication Date
- 2026-05-29
AI Technical Summary
Traditional fabric coating nozzles spray two materials separately onto the fabric surface for mixing, resulting in uneven mixing.
Design an integrated dual-material premixing coating nozzle. By setting a storage tank above the nozzle, the two materials are premixed and then transported to the nozzle for uniform spraying of the fabric. The mixing is carried out by a mixing paddle and scraper, and transported to the liquid collection chamber by a micro suction pump, and then sprayed out from multiple nozzles.
This technology enables uniform mixing and spraying of the two materials, avoiding the problem of uneven coating of two materials and improving production efficiency and product quality.
Smart Images

Figure CN224293656U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to a coating nozzle, and more particularly to a coating nozzle with integrated dual-material premixing that is applied in the field of coating equipment technology. Background Technology
[0002] In modern industrial production, coating technology is widely used in many fields such as electronics, packaging, printing, and new energy. From the manufacturing of electronic product displays to the coating of lithium battery electrodes, and the processing of food packaging materials, the coating nozzle, as a key component for achieving precise coating, directly affects product quality and production efficiency.
[0003] Chinese patent CN210522916U discloses a device for adjusting the gasket of an extrusion coating nozzle. This device enables rapid nozzle changeover without disassembling the nozzle, and allows for large-scale chamfer verification without purchasing a large number of gaskets. It can perform chamfer verification and rapid nozzle changeover for lithium-ion battery coating nozzles. This improves production efficiency, reduces material waste, lowers equipment and accessory costs, enhances the market application prospects of battery manufacturers' products, and is conducive to widespread application in production, possessing significant practical production value.
[0004] Traditional fabric coating nozzles often spray two materials separately onto the fabric surface for mixing, which results in uneven mixing. Utility Model Content
[0005] In view of the above-mentioned prior art, the technical problem to be solved by this utility model is that traditional fabric coating nozzles often spray two materials separately onto the fabric surface for mixing, which results in uneven mixing.
[0006] To address the aforementioned problems, this utility model provides an integrated dual-material premixing coating nozzle, comprising a coating machine, a lead screw rotatably connected to the inner wall of the coating machine, a support plate fixedly connected to the side end of the coating machine, a first servo motor fixedly connected to the support plate, and the output end of the first servo motor connected to the lead screw, a slider sleeved on the surface of the lead screw, a storage tank with a threaded connection lid fixedly connected to the top of the slider, a second servo motor fixedly connected to the top of the lid, and the output end of the second servo motor connected to a rotating part extending into the storage tank. A mixing paddle is symmetrically fixedly connected to the side wall of the shaft. A scraper is detachably connected to the end of the mixing paddle away from the shaft, and the scraper contacts the inner wall of the storage tank. A clamping plate is fixedly connected to the bottom end of the slider. A liquid collection chamber is detachably connected to the inner wall of the clamping plate. Multiple nozzles communicating with the liquid collection chamber are fixedly connected to the bottom wall of the liquid collection chamber. Injection holes are opened on the side end of the liquid collection chamber and the side wall of the storage tank. Two injection holes are connected to each other through a first delivery pipe. A micro suction pump is installed in the storage tank, and the output end of the micro suction pump is connected to the first delivery pipe.
[0007] In the above-mentioned coating nozzle, by setting a storage tank above the nozzle, the two materials are pre-mixed and then conveyed to the nozzle for uniform spraying of the fabric, thus avoiding the problem of uneven spraying of the two materials.
[0008] As a further improvement of this application, a cleaning brush is detachably connected to the end of the mixing paddle away from the rotating shaft, a slot is provided at the end of the mixing paddle away from the rotating shaft, and a card plate is fixedly connected to the end of the cleaning brush near the mixing paddle, and the card plate and the slot are engaged and fixed by bolts.
[0009] As a further improvement to this application, a liquid collection tank is placed inside the coating machine directly below the nozzle.
[0010] As a further improvement of this application, the sidewall of the liquid collecting chamber is symmetrically provided with threaded grooves, and the sidewall of the clamping plate is symmetrically provided with threaded holes corresponding to the threaded grooves, and the liquid collecting chamber and the clamping plate are connected by screw threads.
[0011] As another improvement of this application, two feeding holes are provided at the top of the barrel lid. The inner walls of the two feeding holes are threaded with a second conveying pipe, and the end of the second conveying pipe away from the barrel lid is connected to a material storage box through a conveying pump.
[0012] As a further improvement to this application, a controller for controlling the first servo motor, the second servo motor, and the micro suction pump is fixedly connected to the coating machine.
[0013] In summary, the two liquid materials are placed into the storage tank, and then the tank lid is sealed with threads. At this time, the controller activates the second servo motor to drive the rotating shaft, which in turn drives the mixing paddle and scraper to rotate. The rotating mixing paddle mixes the two materials, while the scraper contacts the inner wall of the storage tank to scrape off the material adhering to the inner wall, thus preventing uneven mixing. After uniform mixing, the micro suction pump can be activated to transport the mixed material through the first delivery pipe to the liquid collection chamber, and then spray it out from multiple nozzles onto the fabric. At the same time, the first servo motor drives the lead screw to move the slider back and forth horizontally, thereby moving the nozzles back and forth to spray the fabric surface evenly. Attached Figure Description
[0014] Figure 1 This is an isometric view of the coating machine according to the first embodiment of this application;
[0015] Figure 2 This is a schematic diagram of the preprocessing mechanism for the first and second embodiments of this application;
[0016] Figure 3 This is a schematic diagram of the internal structure of the storage tank according to the first embodiment of this application;
[0017] Figure 4 This is a schematic diagram of the nozzle installation according to the second embodiment of this application;
[0018] Figure 5 This is a schematic diagram showing the connection between the nozzle and the storage tank in the first embodiment of this application;
[0019] Figure 6 This is a schematic diagram of a cleaning brush according to the second embodiment of this application;
[0020] Figure 7 This is a schematic diagram of the cleaning brush installation structure according to the second embodiment of this application.
[0021] Explanation of the labels in the diagram:
[0022] 1. Coating machine; 2. Pallet; 3. First servo motor; 4. Lead screw; 5. Slider; 6. Clamping plate; 7. Storage tank; 8. Tank lid; 9. Second servo motor; 10. Collection tank; 11. Nozzle; 12. Rotating shaft; 13. Mixing paddle; 14. Scraper; 15. Collection chamber; 16. Threaded groove; 17. Screw; 18. Injection hole; 19. First conveying pipe; 20. Cleaning brush; 21. Clamping plate; 22. Clamping slot; 23. Feeding hole; 24. Second conveying pipe. Detailed Implementation
[0023] The two embodiments of this application will be described in detail below with reference to the accompanying drawings.
[0024] First implementation method:
[0025] Figures 1-3 and Figure 5 This invention illustrates an integrated dual-material premixing coating nozzle, comprising a coating machine 1, a lead screw 4 rotatably connected to the inner wall of the coating machine 1, a support plate 2 fixedly connected to the side end of the coating machine 1, a first servo motor 3 fixedly connected to the support plate 2, and the output end of the first servo motor 3 connected to the lead screw 4, a slider 5 sleeved on the surface of the lead screw 4, a storage tank 7 with a threaded connection to the top of the slider 5, a second servo motor 9 fixedly connected to the top of the tank 8, a rotating shaft 12 extending into the storage tank 7 connected to the output end of the second servo motor 9, and mixing paddles 13 symmetrically fixedly connected to the side wall of the rotating shaft 12, the end of the mixing paddle 13 away from the rotating shaft 12 being detachable. A scraper 14 is connected to the detachable part, and the scraper 14 contacts the inner wall of the storage tank 7. A clamping plate 6 is fixedly connected to the bottom end of the slider 5. A liquid collection chamber 15 is detachably connected to the inner wall of the clamping plate 6. Multiple nozzles 11 communicating with the liquid collection chamber 15 are fixedly connected to the bottom wall of the liquid collection chamber 15. The side end of the liquid collection chamber 15 and the side wall of the storage tank 7 are both provided with injection holes 18, and two injection holes 18 are connected to each other through a first conveying pipe 19. A micro suction pump is installed in the storage tank 7, and the output end of the micro suction pump is connected to the first conveying pipe 19. A controller for controlling the first servo motor 3, the second servo motor 9, the conveying pump and the micro suction pump is fixedly connected to the coating machine 1.
[0026] Working principle: Two liquid materials are placed into the storage tank 7, and then the screw-sealed tank lid 8 is sealed. At this time, the controller turns on the second servo motor 9 to drive the rotating shaft 12 to rotate the mixing paddle 13 and scraper 14. The mixing paddle 13 rotates to mix the two materials. At the same time, the scraper 14 contacts the inner wall of the storage tank 7 to scrape off the material adhering to the inner wall, so as to avoid uneven mixing. After uniform mixing, the micro suction pump can be turned on to transport the mixed material through the first conveying pipe 19 to the liquid collection chamber 15, and then spray it out from multiple nozzles 11 to spray it onto the fabric. At the same time, the first servo motor 3 is turned on to drive the lead screw 4 to drive the slider 5 to move back and forth horizontally, thereby driving the nozzles 11 to move back and forth to spray the fabric surface evenly.
[0027] By setting a storage tank 7 above the nozzle 11, the two materials are pre-mixed and then conveyed to the nozzle 11 for uniform spraying of the fabric, thus avoiding the problem of uneven spraying of the two materials.
[0028] Second implementation method:
[0029] Figure 2 , Figure 4 and Figures 6-7 A cleaning brush 20 is detachably connected to the end of the mixing paddle 13 away from the rotating shaft 12. A slot 22 is provided at the end of the mixing paddle 13 away from the rotating shaft 12. A clamping plate 21 is fixedly connected to the end of the cleaning brush 20 near the mixing paddle 13. The clamping plate 21 and the slot 22 are locked together and fixed by bolts. A liquid collection tank 10 is placed inside the coating machine 1 directly below the nozzle 11. The side wall of the liquid collection chamber 15 is symmetrically provided with threaded grooves 16. The side wall of the clamping plate 6 is symmetrically provided with screw holes corresponding to the threaded grooves 16. The liquid collection chamber 15 and the clamping plate 6 are threadedly connected by screws 17. Two feeding holes 23 are provided at the top of the bucket cover 8. The inner wall of the two feeding holes 23 is threadedly connected to a second conveying pipe 24. The end of the second conveying pipe 24 away from the bucket cover 8 is connected to a material storage tank through a conveying pump.
[0030] Working principle: Connect the two second conveying pipes 24 to the corresponding feeding holes 23 by threads. Then, turn on the conveying pump to transport the two materials to the storage tank 7 for pre-mixing treatment. This can achieve the effect of continuous mixing and spraying, and avoid interruption of spraying due to insufficient material. Then, select the appropriate nozzle 11 according to the usage requirements. Fix the liquid collection chamber 15 between the inner walls of the clamping plate 6 by threading the screw 17 through the screw hole and the threaded groove 16. Then spray the cloth. The liquid dripping during spraying will fall into the liquid collection tank 10 for collection and treatment. After the coating is completed, the tank cover 8 can be removed, the scraper 14 can be removed from the mixing paddle 13, and the cleaning brush 20 can be replaced. When cleaning the inside of the storage tank 7, the cleaning brush 20 can be driven to scrub the inner wall of the storage tank 7.
[0031] The scraper 14 and cleaning brush 20 are designed to be detachable, allowing for free replacement according to usage needs. Similarly, the nozzle 11 is designed to be detachable, allowing for the selection and installation of different types of nozzles according to usage needs.
[0032] In light of current practical needs, the above-described embodiments adopted in this application are not limited to these. Any changes made within the scope of knowledge possessed by those skilled in the art without departing from the concept of this application still fall within the protection scope of this utility model.
Claims
1. A coating nozzle with integrated dual-material premixing, comprising a coating machine (1), characterized in that: The coating machine (1) is rotatably connected to a lead screw (4) on its inner wall. A support plate (2) is fixedly connected to the side of the coating machine (1). A first servo motor (3) is fixedly connected to the support plate (2), and the output end of the first servo motor (3) is connected to the lead screw (4). A slider (5) is sleeved on the surface of the lead screw (4). A storage tank (7) with a threaded connection bucket cover (8) is fixedly connected to the top of the slider (5). A second servo motor (9) is fixedly connected to the top of the bucket cover (8). The output end of the second servo motor (9) is connected to a rotating shaft (12) extending into the storage tank (7). A mixing paddle (13) is symmetrically fixedly connected to the side wall of the rotating shaft (12). A scraper (14) is detachably connected to the end of the paddle (13) away from the rotating shaft (12), and the scraper (14) contacts the inner wall of the storage tank (7). A clamping plate (6) is fixedly connected to the bottom end of the slider (5). A liquid collection chamber (15) is detachably connected to the inner wall of the clamping plate (6). A plurality of nozzles (11) communicating with the liquid collection chamber (15) are fixedly connected to the bottom wall of the liquid collection chamber (15). An injection hole (18) is opened on the side end of the liquid collection chamber (15) and the side wall of the storage tank (7). The two injection holes (18) are connected to each other through a first delivery pipe (19). A micro suction pump is installed in the storage tank (7), and the output end of the micro suction pump is connected to the first delivery pipe (19).
2. The coating nozzle with integrated dual-material premixing according to claim 1, characterized in that: A cleaning brush (20) is detachably connected to the end of the mixing paddle (13) away from the rotating shaft (12). A slot (22) is provided at the end of the mixing paddle (13) away from the rotating shaft (12). A card plate (21) is fixedly connected to the end of the cleaning brush (20) near the mixing paddle (13), and the card plate (21) and the slot (22) are locked together and fixed by bolts.
3. The coating nozzle with integrated dual-material premixing according to claim 1, characterized in that: A liquid collection tank (10) is placed inside the coating machine (1) directly below the nozzle (11).
4. The coating nozzle with integrated dual-material premixing according to claim 1, characterized in that: The liquid collection chamber (15) has symmetrically provided threaded grooves (16) on its sidewall, and the clamping plate (6) has symmetrically provided threaded holes corresponding to the threaded grooves (16) on its sidewall, and the liquid collection chamber (15) and the clamping plate (6) are connected by screws (17).
5. The coating nozzle with integrated dual-material premixing according to claim 1, characterized in that: The top of the bucket lid (8) has two feeding holes (23), and the inner walls of the two feeding holes (23) are threaded with a second conveying pipe (24). The end of the second conveying pipe (24) away from the bucket lid (8) is connected to a material storage box through a conveying pump.
6. The coating nozzle with integrated dual-material premixing according to claim 1, characterized in that: The coating machine (1) is fixedly connected to a controller that controls the first servo motor (3), the second servo motor (9), and the micro suction pump.