Core-shell flame retardant coating device
The core-shell flame retardant coating device utilizes a servo motor and filter plate structure to achieve precise spraying and recycling of flame retardants, solving the problems of uneven coating and resource waste in traditional devices, and improving coating quality and environmental performance.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHANGHAI JUNSHENG JINGQI ENTERPRISE CONSULTING SERVICES CO LTD
- Filing Date
- 2025-06-17
- Publication Date
- 2026-05-19
AI Technical Summary
Traditional flame retardant coating devices struggle to achieve uniform distribution of flame retardants on the substrate surface, resulting in uneven coating thickness. Furthermore, unattached flame retardants cannot be recycled, leading to resource waste and environmental pollution.
The device employs a core-shell flame retardant coating system, which uses a servo motor to drive a threaded rod and a transmission roller to achieve precise and uniform spraying and coating of the flame retardant. It is also equipped with a filter screen and an auger structure to recover unattached flame retardant for recycling.
It achieves precise coating of flame retardants on the substrate surface, reduces raw material consumption, lowers production costs, and improves coating quality and environmental benefits.
Smart Images

Figure CN224253140U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of material processing equipment technology, specifically to a core-shell flame retardant coating device. Background Technology
[0002] In many fields such as papermaking, textiles, and building materials, in order to improve the fire safety performance of products, it is often necessary to uniformly coat flame retardants onto the surface of the substrate. Flame retardant coating equipment is a key piece of equipment designed for this purpose. However, the current traditional flame retardant coating equipment has revealed significant technical defects in practical applications.
[0003] In terms of coating technology, most traditional devices rely on direct-drive spraying to apply flame retardants. However, this method makes it difficult to precisely control the uniformity of flame retardant distribution on the substrate surface, which can easily lead to local coatings that are too thick or too thin, or even coating blind spots. As a result, the flame retardant effect of the final product cannot meet the expected standards and cannot meet the quality requirements of high-safety application scenarios. At the same time, traditional devices generally lack an effective recovery mechanism for unattached flame retardants. Excess flame retardants generated during the spraying process are directly discarded without filtration, which not only causes a serious waste of raw material resources but also significantly increases the production costs of enterprises. In addition, untreated waste flame retardants may cause environmental pollution problems. To address these issues, we propose a core-shell flame retardant coating device. Utility Model Content
[0004] The purpose of this invention is to provide a core-shell flame retardant coating device.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a core-shell flame retardant coating device, comprising a worktable, two pairs of vertical plates fixedly mounted on the top of the worktable, and a transmission roller movably mounted between each pair of vertical plates. A drive motor is fixedly mounted on the side of one pair of vertical plates, and the output shaft of the drive motor is fixedly connected to the transmission roller. An N-shaped shell is provided between the two pairs of vertical plates. A rectangular groove is formed on the inner wall of the N-shaped shell. A threaded rod is movably mounted inside the rectangular groove, and a sleeve block is movably mounted on the surface of the threaded rod. A servo motor is fixedly mounted on the top of the N-shaped shell, and the output shaft of the servo motor is fixedly connected to the threaded rod. A coating roller is movably mounted between the two sets of sleeve blocks. The coating roller 2 has a coating roller 1 movably mounted on the inner wall of the N-shaped shell. A storage box is fixedly mounted on the top of the N-shaped shell. A conveying pipe is fixedly mounted on the side of the storage box and extends into the interior of the N-shaped shell. A booster pump 1 is provided on the surface of the conveying pipe. A collection pipe is fixedly mounted on the other end of the conveying pipe, and a nozzle is fixedly mounted on the surface of the collection pipe. A collection box is fixedly mounted on the bottom of the worktable. A placement groove is opened on the surface of the worktable and extends into the interior of the collection box. A filter plate is fixedly mounted inside the placement groove. A circulation pipe is fixedly mounted on the surface of the collection box and extends into the interior of the storage box. A booster pump 2 is provided on the surface of the circulation pipe.
[0006] As a further embodiment of this utility model: two sets of opposing augers are movably installed inside the collection box, and a connecting rod is fixedly installed at one end of each set of augers. Both sets of connecting rods penetrate the collection box, and a gear is fixedly installed at one end of each set of connecting rods. Both sets of gears are movably installed on the surface of the collection box and mesh with each other. A fixing rod is fixedly installed on the surface of one of the gears. A load-bearing plate is fixedly installed on the surface of the collection box. A second servo motor is provided on the surface of the load-bearing plate. A connecting belt is used to drive the output shaft of the second servo motor to the fixing rod.
[0007] As a further embodiment of this utility model: four sets of support legs are fixedly installed at the bottom of the collection box, and each of the four sets of support legs is fixedly installed with a base.
[0008] As a further embodiment of this utility model: a motor protective cover is provided on the side of the vertical plate, and the drive motor is located inside the motor protective cover. A heat dissipation groove is provided on the surface of the motor protective cover.
[0009] As a further embodiment of this utility model: a reinforcing rib is provided at the connection between the workbench and the collection box, and the reinforcing rib is triangular in shape.
[0010] As a further embodiment of this utility model, the inside of the collection box is provided with two sets of opposing guide plates.
[0011] Compared with the prior art, the beneficial effects of this utility model by adopting the above technical solution are as follows:
[0012] 1. This utility model involves winding an object between two sets of transmission rollers. The power of a servo motor causes the sleeve block on the threaded rod surface to move downwards, thus limiting the object between the coating rollers. The drive motor then transports the object. The suction of a booster pump draws flame retardant from the storage tank into the collection pipe through a feed pipe and sprays it onto the surface of the object through a nozzle. As the object passes between the coating rollers, the flame retardant is evenly coated. Any remaining flame retardant passes through a filter screen, allowing qualified flame retardant to enter the collection tank. The process then continues... The power of the second motor and the connecting belt cause the fixed rod to rotate, which in turn causes the two sets of gears to rotate relative to each other, and then causes the two sets of screw conveyors to rotate relative to each other, thereby agitating the flame retardant. Subsequently, the suction of the second booster pump draws the flame retardant in the collection tank back into the storage tank through the circulation pipe for recycling. This device can precisely control the amount of flame retardant coated on the substrate surface, avoiding flame retardant penetration or accumulation, thereby accurately matching the thickness and optimizing the coating quality. At the same time, it can filter out the flame retardant that has not adhered or dripped and reuse it, thereby reducing raw material consumption, lowering costs and improving environmental benefits.
[0013] 2. This utility model enables the flame retardant to remain in a liquid state at all times, preventing sedimentation or stratification, ensuring that the composition of the flame retardant is consistent with each spray, avoiding coating defects caused by uneven concentration, and thus ensuring uniformity of spraying during subsequent cycles. At the same time, the flame retardant status can be monitored in real time during the stirring process, and parameters can be flexibly adjusted according to process requirements to ensure stable coating quality.
[0014] Other advantages, objectives and features of this invention will be set forth in part in the description which follows, and in part will be apparent to those skilled in the art from the following examination or study, or may be taught from the practice of this invention. Attached Figure Description
[0015] Figure 1 This is a three-dimensional schematic diagram of the present invention;
[0016] Figure 2 This is a schematic diagram of the base structure of this utility model;
[0017] Figure 3 This is a schematic diagram of the cross-sectional structure of the collection box of this utility model;
[0018] Figure 4 This is a schematic diagram of the filter plate structure of this utility model.
[0019] In the diagram: 1. Workbench; 2. Vertical plate; 3. Transmission roller; 4. Drive motor; 5. N-type shell; 6. Placement slot; 7. Filter plate; 8. Rectangular slot; 9. Threaded rod; 10. Connecting block; 11. Servo motor one; 12. Coating roller one; 13. Coating roller two; 14. Feed pipe; 15. Collection pipe; 16. Nozzle; 17. Booster pump one; 18. Storage box; 19. Collection box; 20. Circulation pipe; 21. Booster pump two; 22. Screwdriver; 23. Connecting rod; 24. Gear; 25. Fixing rod; 26. Load-bearing plate; 27. Servo motor two; 28. Connecting belt; 29. Guide plate; 30. Motor protective cover; 31. Heat dissipation slot; 32. Reinforcing rib; 33. Support leg; 34. Base. Detailed Implementation
[0020] The specific embodiments of this utility model will be further described below with reference to the accompanying drawings. It should be noted that the description of these embodiments is for the purpose of helping to understand this utility model, but does not constitute a limitation on this utility model.
[0021] Furthermore, the technical features involved in the various embodiments of this utility model described below can be combined with each other as long as they do not conflict with each other.
[0022] Please see the appendix Figure 1 -Appendix Figure 4 This utility model provides a core-shell flame retardant coating device, including a workbench 1. Two pairs of vertical plates 2 are fixedly installed on the top of the workbench 1, and a transmission roller 3 is movably installed between each pair of vertical plates 2. A drive motor 4 is fixedly installed on the side of one pair of vertical plates 2, and the output shaft of the drive motor 4 is fixedly connected to the transmission roller 3. An N-shaped shell 5 is provided between the two pairs of vertical plates 2. A rectangular groove 8 is formed on the inner wall of the N-shaped shell 5. A threaded rod 9 is movably installed inside the rectangular groove 8, and a sleeve block 10 is movably installed on the surface of the threaded rod 9. A servo motor 11 is fixedly installed on the top of the N-shaped shell 5, and the output shaft of the servo motor 11 is fixedly connected to the threaded rod 9. A coating roller 13 is movably installed between the two sets of sleeve blocks 10. A coating roller 12 is mounted on the top of the N-type shell 5. A storage tank 18 is fixedly mounted on the top of the storage tank 18. A conveying pipe 14 is fixedly mounted on the side of the storage tank 18 and extends into the interior of the N-type shell 5. A booster pump 17 is provided on the surface of the conveying pipe 14. A collection pipe 15 is fixedly mounted on the other end of the conveying pipe 14 and a nozzle 16 is fixedly mounted on the surface of the collection pipe 15. A collection box 19 is fixedly mounted on the bottom of the workbench 1. A placement groove 6 is opened on the surface of the workbench 1 and extends into the interior of the collection box 19. A filter plate 7 is fixedly mounted inside the placement groove 6. A circulation pipe 20 is fixedly mounted on the surface of the collection box 19 and extends into the interior of the storage tank 18. A booster pump 21 is provided on the surface of the circulation pipe 20.
[0023] The above solution allows for precise control of the amount of flame retardant applied to the substrate surface, preventing flame retardant penetration or accumulation, thus accurately matching the thickness and optimizing the coating quality. At the same time, it can filter out unattached or dripped flame retardant and reuse it, thereby reducing raw material consumption, lowering costs, and improving environmental benefits.
[0024] like Figure 4 As shown, two sets of opposing augers 22 are movably installed inside the collection box 19, and a connecting rod 23 is fixedly installed at one end of each set of augers 22. Both sets of connecting rods 23 pass through the collection box 19, and a gear 24 is fixedly installed at one end of each set of connecting rods 23. Both sets of gears 24 are movably installed on the surface of the collection box 19 and mesh with each other. A fixing rod 25 is fixedly installed on the surface of one of the gears 24. A load-bearing plate 26 is fixedly installed on the surface of the collection box 19. A second servo motor 27 is provided on the surface of the load-bearing plate 26. A connecting belt 28 is connected between the output shaft of the second servo motor 27 and the fixing rod 25.
[0025] The above solution ensures that the flame retardant remains in a liquid state, preventing sedimentation or stratification and ensuring consistent flame retardant composition in each application. This avoids coating defects caused by uneven concentration, thus guaranteeing uniformity during subsequent cycles. Furthermore, the flame retardant status can be monitored in real time during stirring, allowing for flexible parameter adjustments based on process requirements to ensure stable coating quality.
[0026] like Figure 1 As shown, four sets of support legs 33 are fixedly installed at the bottom of the collection box 19, and each of the four sets of support legs 33 is fixedly installed with a base 34.
[0027] The above solution is adopted: by fixing four sets of support legs 33 to the bottom of the collection box 19, and fixing a base 34 to the bottom of each of the four sets of support legs 33, the device body can be kept away from the ground to avoid moisture.
[0028] like Figure 2 As shown, a motor protective cover 30 is provided on the side of the vertical plate 2, and the drive motor 4 is located inside the motor protective cover 30. A heat dissipation groove 31 is provided on the surface of the motor protective cover 30.
[0029] The above solution is adopted: by providing a motor protective cover 30 on the side of the vertical plate 2, and the drive motor 4 is located inside the motor protective cover 30, the drive motor 4 can be protected from damage caused by collision with objects. Heat dissipation grooves 31 are provided on the surface of the motor protective cover 30 to improve the heat dissipation of the drive motor 4.
[0030] like Figure 2 As shown, a reinforcing rib 32 is provided at the connection between the workbench 1 and the collection box 19. The reinforcing rib 32 is triangular in shape.
[0031] The above solution is adopted: by setting a reinforcing rib 32 at the connection between the workbench 1 and the collection box 19, the connection between the workbench 1 and the collection box 19 is strengthened, and the reinforcing rib 32 is triangular, which has stability.
[0032] like Figure 3 As shown, the inside of the collection box 19 is provided with two sets of opposing guide plates 29;
[0033] By providing two sets of opposing guide plates 29 inside the collection tank 19, the flame retardant liquid can be concentrated after flowing into the collection tank 19, thus avoiding waste during recycling.
[0034] Working principle:
[0035] In use, the operator wraps the object to be coated between the two sets of transmission rollers 3, ensuring the middle section of the object is positioned on the surface of coating roller 12. Then, the operator activates servo motor 11 via an external switch. The power generated by servo motor 11, through its output shaft, causes threaded rod 9 to rotate clockwise. This rotation of threaded rod 9 causes the sleeve block 10 on its surface to move downwards, thus limiting the object's position by the engagement between coating roller 12 and coating roller 2 13. Next, the operator activates drive motor 4 via an external switch. The power generated by drive motor 4, through its output shaft, causes transmission roller 3 to rotate, wrapping the object around its surface and moving it. At this point, the operator activates booster pump 17 via an external switch. The suction generated by booster pump 17 draws the flame retardant from storage tank 18 through the feed pipe 14 into the receiving tank. The flame retardant is sprayed from inside the manifold 15 and applied to the surface of the object through the nozzle 16. Then, under the action of the coating roller 12 and the coating roller 23, the flame retardant is evenly coated on the surface of the object. The remaining flame retardant liquid passes through the surface of the filter screen 7, blocking the unqualified flame retardant liquid, and the qualified liquid enters the inside of the collection box 19. Then, the operator starts the servo motor 27. The power generated by the servo motor 27 rotates the fixed rod 25 through the cooperation of its output shaft and the connecting belt 28. Since the two sets of gears 24 are meshed, the rotation of the fixed rod 25 causes the two sets of gears 24 to rotate relative to each other, which in turn causes the two sets of screw conveyors 22 to rotate relative to each other, stirring the flame retardant and preventing clumping. Then, the suction of the booster pump 21 draws the flame retardant inside the collection box 19 back into the storage box 18 through the circulation pipe 20 for use.
[0036] The terms "front," "back," "left," "right," "top," and "bottom" all refer to the figures in the accompanying drawings. Figure 1 Based on.
[0037] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting the scope of protection of this utility model.
[0038] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings, but the present invention is not limited to the described embodiments.
[0039] For those skilled in the art, various changes, modifications, substitutions, and alterations to these embodiments without departing from the principles and spirit of this utility model will still fall within the protection scope of this utility model.
Claims
1. A core-shell flame retardant coating apparatus, comprising a workbench (1), characterized in that: Two pairs of vertical plates (2) are fixedly installed on the top of the workbench (1), and a transmission roller (3) is movably installed between each pair of vertical plates (2). A drive motor (4) is fixedly installed on the side of one pair of vertical plates (2), and the output shaft of the drive motor (4) is fixedly connected to the transmission roller (3). An N-shaped shell (5) is provided between the two pairs of vertical plates (2). A rectangular groove (8) is opened on the inner wall of the N-shaped shell (5). A threaded rod (9) is movably installed inside the rectangular groove (8), and a socket block (10) is movably installed on the surface of the threaded rod (9). A servo motor (11) is fixedly installed on the top of the N-shaped shell (5), and the output shaft of the servo motor (11) is fixedly connected to the threaded rod (9). A coating roller (13) is movably installed between the two sets of socket blocks (10). A coating roller (12) is movably installed on the inner wall of the N-shaped shell (5). 5) A storage box (18) is fixedly installed on the top. A conveying pipe (14) is fixedly installed on the side of the storage box (18) and extends into the interior of the N-type shell (5). A booster pump (17) is provided on the surface of the conveying pipe (14). A collection pipe (15) is fixedly installed at the other end of the conveying pipe (14) and a nozzle (16) is fixedly installed on the surface of the collection pipe (15). A collection box (19) is fixedly installed at the bottom of the workbench (1). A placement groove (6) is opened on the surface of the workbench (1) and extends into the interior of the collection box (19). A filter plate (7) is fixedly installed inside the placement groove (6). A circulation pipe (20) is fixedly installed on the surface of the collection box (19) and extends into the interior of the storage box (18). A booster pump (21) is provided on the surface of the circulation pipe (20).
2. The core-shell flame retardant coating device according to claim 1, characterized in that: The collection box (19) is equipped with two sets of opposing augers (22), and each set of augers (22) has a connecting rod (23) fixedly installed at one end. Both sets of connecting rods (23) pass through the collection box (19), and each set of connecting rods (23) has a gear (24) fixedly installed at one end. Both sets of gears (24) are movably installed on the surface of the collection box (19) and mesh with each other. A fixing rod (25) is fixedly installed on the surface of one of the gears (24). A load-bearing plate (26) is fixedly installed on the surface of the collection box (19). A servo motor (27) is provided on the surface of the load-bearing plate (26). A connecting belt (28) is connected between the output shaft of the servo motor (27) and the fixing rod (25).
3. The core-shell flame retardant coating device according to claim 1, characterized in that: The bottom of the collection box (19) is fixedly equipped with four sets of support legs (33), and the bottom of each of the four sets of support legs (33) is fixedly equipped with a base (34).
4. The core-shell flame retardant coating device according to claim 1, characterized in that: The side of the vertical plate (2) is provided with a motor protective cover (30), and the drive motor (4) is located inside the motor protective cover (30). The surface of the motor protective cover (30) is provided with heat dissipation grooves (31).
5. The core-shell flame retardant coating device according to claim 1, characterized in that: A reinforcing rib (32) is provided at the connection between the workbench (1) and the collection box (19), and the reinforcing rib (32) is triangular.
6. The core-shell flame retardant coating device according to claim 1, characterized in that: The inside of the collection box (19) is provided with two sets of opposing guide plates (29).