Filtering equipment for preparing waterborne polyurethane coating
By designing a filtering device with a motor-driven eccentric wheel and a sliding cleaning board, the problem of the inability to clean the filter board repeatedly in the prior art is solved, and the effect of extending the service life of the filter board and reducing production interruptions is achieved.
Patent Information
- Application Number
- CN202421756920.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-24
- Publication Date
- 2025-05-30
- Estimated Expiration
- 2034-07-24
AI Technical Summary
The existing filter equipment for preparing water-based polyurethane coatings cannot be repeatedly cleaned, which must be replaced when the filter plate is contaminated or blocked, which increases production interruption and downtime.
A filtering device including a base plate, a support rod, a placement table, a driving assembly, an eccentric wheel, a rotating plate, a sliding plate, a cleaning plate and a brush is designed. The eccentric wheel drives the rotating plate and a sliding plate through a motor, and the cleaning plate slides outside the thick-hole filter plate for cleaning.
Repeated cleaning of the filter plate is achieved, extending the service life of the filter plate and reducing production interruptions and downtime.
Smart Images
Figure CN222918194U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of polyurethane coating filtration, in particular to a filtration device for preparing waterborne polyurethane coatings. Background Art
[0002] A filtration device for preparing waterborne polyurethane coatings is a device specifically designed to remove impurities and unreacted substances in polyurethane raw materials to ensure that the final produced coating is smooth and defect-free. Such a device usually includes a power system, a multi-stage filtration unit, a control system, and necessary auxiliary devices to efficiently and precisely complete the filtration process.
[0003] In the prior art, some filtration devices for preparing waterborne polyurethane coatings can ensure the smoothness and consistency of the coating by effectively removing impurities and unreacted polymer particles, thereby improving the quality of the final product. However, in the specific use process, the filter plate cannot be cleaned repeatedly. The inability to clean means that once the filter plate is contaminated or blocked, a new filter plate must be replaced, which leads to production interruption and increased downtime. Therefore, in view of the above problems, a filtration device for preparing waterborne polyurethane coatings is proposed. Summary of the Utility Model
[0004] In order to make up for the above deficiencies, the utility model provides a filtration device for preparing waterborne polyurethane coatings, aiming to improve the problem that some filtration devices for preparing waterborne polyurethane coatings in the prior art cannot clean the filter plate repeatedly.
[0005] In order to achieve the above purpose, the utility model adopts the following technical scheme:
[0006] A filtration device for preparing waterborne polyurethane coatings includes a bottom plate. Four corners of the top of the bottom plate are fixedly connected with support rods. The top of the support rods is fixedly connected with a placement table. The outside of the placement table is fixedly connected with a driving component for providing power. An eccentric wheel is rotatably connected to the outside of the driving component. A first rotating plate is rotatably connected to the outside of the eccentric wheel. The other end of the first rotating plate is rotatably connected to a sliding plate. A cleaning plate is fixedly connected to the outside of the sliding plate. A plurality of brush hairs are fixedly connected to the bottom of the cleaning plate. A filter barrel is fixedly connected to the inside of the placement table. An inner container is fixedly connected to the inside of the filter barrel. A coarse pore filter plate is fixedly connected to the inside of the inner container. A filter net is fixedly connected to the bottom of the coarse pore filter plate. A fine pore filter plate is fixedly connected to the inside of the inner container.
[0007] As a further description of the above technical solution:
[0008] The driving assembly includes a first fixing plate, inside which a motor is fixedly connected. The driving end of the motor is fixedly connected with a driving rod, and the outside of the first fixing plate is fixedly connected to the outside of the placing table.
[0009] As a further description of the above technical solution:
[0010] On the left side of the outside of the filtering barrel, an extension plate is fixedly connected. On the left side of the top of the bottom plate, a collection box is fixedly connected. Inside the collection box, a drawer is slidably connected. On the top of the bottom plate, a collection box is fixedly connected, and on the rear side of the collection box, a pump body is fixedly connected.
[0011] As a further description of the above technical solution:
[0012] The output end of the pump body is fixedly connected with a delivery pipe. On the rear side of the placing table, an adapter plate is fixedly connected. On the outside of the filtering barrel, a connection ring is fixedly connected, and at the bottom of the connection ring, a plurality of second fixing plates are fixedly connected.
[0013] As a further description of the above technical solution:
[0014] Inside the second fixing plate, a threaded rod is rotatably connected, and on the outside of the threaded rod, a rotating grip is threadedly connected.
[0015] As a further description of the above technical solution:
[0016] On the top of the connection ring, a top cover is fixedly connected. On the front side of the filtering barrel, a discharge pipe is fixedly connected.
[0017] As a further description of the above technical solution:
[0018] At the four corners inside the filtering barrel, connection frames are fixedly connected, and inside the connection frames, second rotating plates are rotatably connected.
[0019] As a further description of the above technical solution:
[0020] Inside the second rotating plate, a fixing rod is fixedly connected, and the outside of the inner tank is fixedly connected to the outside of the fixing rod.
[0021] The present utility model has the following beneficial effects:
[0022] 1. In the present utility model, by starting the motor, the motor drives the eccentric wheel to rotate through the driving rod, so that the eccentric wheel can drive the first rotating plate to rotate, and the first rotating plate drives the cleaning plate to slide outside the coarse-hole filter plate through the sliding plate.
[0023] 2. In the present utility model, the rotating grip can rotate outside the threaded rod, thereby enabling the threaded rod to be disengaged from the locked state. By rotating the threaded rod, the staff can open the top cover. By pressing the second rotating plate, the second rotating plate can drive the fixed rod out of the interior of the inner tank, and then the inner tank can be taken out. BRIEF DESCRIPTION OF THE DRAWINGS
[0024] Figure 1 FIG. is a perspective schematic view of a filtering device for preparing a waterborne polyurethane coating proposed by the present utility model;
[0025] Figure 2 FIG. is a structural schematic view of a collection box of a filtering device for preparing a waterborne polyurethane coating proposed by the present utility model;
[0026] Figure 3 FIG. is a structural schematic view of a coarse pore filter plate of a filtering device for preparing a waterborne polyurethane coating proposed by the present utility model;
[0027] Figure 4 is Figure 2 an enlarged view of part A in
[0028] Figure 5 FIG. is a structural schematic view of a filter barrel of a filtering device for preparing a waterborne polyurethane coating proposed by the present utility model;
[0029] Figure 6 FIG. is a structural schematic view of a discharge pipe of a filtering device for preparing a waterborne polyurethane coating proposed by the present utility model.
[0030] LEGEND DESCRIPTION:
[0031] 1. Bottom plate; 2. Support rod; 3. Placing table; 4. First fixing plate; 5. Motor; 6. Driving rod; 7. Eccentric wheel; 8. First rotating plate; 9. Sliding plate; 10. Cleaning plate; 11. Brush; 12. Coarse pore filter plate; 13. Filter net; 14. Fine pore filter plate; 15. Filter barrel; 16. Inner tank; 17. Extension plate; 18. Collection box; 19. Drawer; 20. Collection box; 21. Pump body; 22. Delivery pipe; 23. Connecting plate; 24. Connecting ring; 25. Second fixing plate; 26. Threaded rod; 27. Rotating grip; 28. Top cover; 29. Discharge pipe; 30. Connecting frame; 31. Second rotating plate; 32. Fixed rod. DETAILED DESCRIPTION OF THE EMBODIMENTS
[0032] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.
[0033] Referring to Figures 1-3 , an embodiment provided by the present invention: A filtering device for preparing a waterborne polyurethane coating, including a bottom plate 1. Four corners of the top of the bottom plate 1 are fixedly connected with support rods 2. These support rods 2 are usually made of strong materials such as stainless steel or aluminum alloy, and are designed as upright cylinders in shape to ensure sufficient support strength and stability. The top of the support rods 2 is fixedly connected with a placement table 3. The outside of the placement table 3 is fixedly connected with a driving assembly for providing power. The driving assembly includes a first fixing plate 4, which is a metal plate located below the placement table 3 and internally fixedly connected with a motor 5. The motor 5 is fixedly connected inside the first fixing plate 4. The motor 5 is the core part of the driving assembly, and its driving end is fixedly connected with a driving rod 6 for transmitting the rotational power of the motor 6 to other mechanical components. The driving end of the motor 5 is fixedly connected with the driving rod 6, and the outside of the first fixing plate 4 is fixedly connected to the outside of the placement table 3. Such a design makes the driving assembly and the placement table 3 an integral whole, jointly bearing and transmitting power. The outside of the driving assembly is rotatably connected with an eccentric wheel 7, which is a circular wheel with a certain thickness and diameter, and the center point of which is offset from the rotation center of the driving rod 6, forming an eccentric structure. The outside of the eccentric wheel 7 is rotatably connected with a first rotating plate 8, which is a flat plate that can rotate around the center of the eccentric wheel 7, and the other end of which is rotatably connected with a sliding plate 9;
[0034] The outside of the sliding plate 9 is fixedly connected with a cleaning plate 10. The bottom of the cleaning plate 10 is fixedly connected with a plurality of brush hairs 11, which are used for cleaning and filtering the coating. The brush hairs 11 are in the shape of slender bristles, and the material is usually nylon or pig bristles, with good elasticity and wear resistance. Inside the placement table 3 is fixedly connected with a filtering barrel 15, which is a container for storing the waterborne polyurethane coating to be filtered. Inside the filtering barrel 15 is fixedly connected with an inner liner 16. Inside the inner liner 16 is fixedly connected with a coarse pore filter plate 12. The bottom of the coarse pore filter plate 12 is fixedly connected with a filter net 13, which is a fine grid structure for further filtering out smaller particles. Inside the inner liner 16 is fixedly connected with a fine pore filter plate 14. The coarse pore filter plate 12 and the fine pore filter plate 14 are two filter plates with different pore diameters, respectively used for preliminary filtering and fine filtering;
[0035] Referring to Figures 3-6, on the left side of the outside of the filter barrel 15, there is an extension plate 17 fixedly connected. This is a flat plate-like structure, which is used to increase the stability of the filter barrel 15 and provide an additional support area. The extension plate 17 is usually made of the same material as the filter barrel 15, such as stainless steel or plastic. Its shape is designed as a rectangle to maximize the use of space and provide sufficient support. On the left side of the top of the bottom plate 1, there is a collection box 18 fixedly connected. This is a container for collecting the solid waste after filtration. Inside the collection box 18, there is a drawer 19 slidably connected, which is convenient for users to regularly clean the waste. The shape of the drawer 19 is a cuboid, and the material is usually plastic or metal. The inside is coated with an anti-corrosion coating to prevent the waste from eroding the material. On the top of the bottom plate 1, there is a collection box 20 fixedly connected. This is a container for collecting the liquid after filtration. At the rear side of the collection box 20, there is a pump body 21 fixedly connected. The output end of the pump body 21 is fixedly connected with a delivery pipe 22. This is a pipe for delivering the liquid to a designated position. At the rear side of the placement table 3, there is an adapter plate 23 fixedly connected. The shape of the adapter plate 23 is a rectangle, and the material is usually metal. Its surface is treated with rust prevention to ensure that it will not rust during long-term use. On the outside of the filter barrel 15, there is a connection ring 24 fixedly connected. At the bottom of the connection ring 24, there are a plurality of fixing plates two 25 fixedly connected. Inside the fixing plates two 25, there is a threaded rod 26 rotatably connected. This is a cylindrical rod with threads, which is used to adjust and fix the position of the filter barrel 15. The outside of the threaded rod 26 is threadedly connected with a rotating grip 27. At the top of the connection ring 24, there is a top cover 28 fixedly connected. This is a cover covering the top of the filter barrel 15, which is used to close and protect the filter barrel 15. The shape of the top cover 28 is circular, and the material is usually plastic or metal. Its surface is treated with anti-slip to facilitate the operation of users. On the front side of the filter barrel 15, there is a discharge pipe 29 fixedly connected. This is a pipe for discharging the liquid after filtration. The shape of the discharge pipe 29 is a bent pipe shape, and the material is usually plastic or rubber. Its inside is treated smoothly to reduce the resistance of liquid flow. At the four corners inside the filter barrel 15, there are connection frames 30 fixedly connected. Inside the connection frames 30, there are rotating plates two 31 rotatably connected. Inside the rotating plates two 31, there are fixing rods 32 fixedly connected. The outside of the inner tank 16 is fixedly connected to the outside of the fixing rods 32, which is used to tightly fix the rotating plates two 31 and the inner tank 16 together. The material of the rotating plates two 31 is usually plastic or metal. Its surface is treated with anti-slip to facilitate the operation of users.
[0036] Working principle: By starting the motor 5, under the action of the motor 5, the motor 5 drives the eccentric wheel 7 to rotate through the driving rod 6. Under the rotation of the eccentric wheel 7, the eccentric wheel 7 can drive the first rotating plate 8 to rotate. Under the rotation of the first rotating plate 8, the first rotating plate 8 drives the cleaning plate 10 to slide outside the coarse-hole filter plate 12 through the sliding plate 9. Then, the cleaning plate 10 can clean the outside of the coarse-hole filter plate 12 through the brush 11. Under the sliding of the cleaning plate 10, the impurities outside the coarse-hole filter plate 12 can be pushed into the interior of the collection box 18 through the extension plate 17. When the filtered coating drops into the interior of the collection box 20 through the discharge pipe 29, by starting the pump body 21, under the action of the pump body 21, the coating returns to the interior of the inner tank 16 through the delivery pipe 22 for secondary filtration;
[0037] By rotating the rotating grip 27, under the action of the rotating grip 27, the rotating grip 27 can rotate outside the threaded rod 26. Then, the threaded rod 26 can be disengaged from the locked state. By rotating the threaded rod 26, the staff can open the top cover 28. By pressing the second rotating plate 31, under the action of the second rotating plate 31, the second rotating plate 31 can drive the fixed rod 32 out of the interior of the inner tank 16. Then, the inner tank 16 can be taken out. When fixing, by rotating the threaded rod 26, when the threaded rod 26 rotates to a suitable position, by rotating the rotating grip 27, the rotating grip 27 is closely attached to the outside of the top cover 28, so that the rotating grip 27 can lock the top cover 28.
[0038] Finally, it should be noted that the above are only the preferred embodiments of the present invention and are not used to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.
Claims
1. A filtering device for preparing a waterborne polyurethane coating, comprising a bottom plate (1), characterized in that: The top four corners of the bottom plate (1) are fixedly connected to support rods (2), the top of the support rods (2) is fixedly connected to a placing table (3), the outside of the placing table (3) is fixedly connected to a driving assembly for providing power, the outside of the driving assembly is rotatably connected to an eccentric wheel (7), the outside of the eccentric wheel (7) is rotatably connected to a rotating plate (8), the other end of the rotating plate (8) is rotatably connected to a sliding plate (9), the outside of the sliding plate (9) is fixedly connected to a cleaning plate (10), the bottom of the cleaning plate (10) is fixedly connected to a plurality of brushes (11), the inside of the placing table (3) is fixedly connected to a filter barrel (15), the inside of the filter barrel (15) is fixedly connected to an inner liner (16), the inside of the inner liner (16) is fixedly connected to a coarse-pore filter plate (12), the bottom of the coarse-pore filter plate (12) is fixedly connected to a filter net (13), and the inside of the inner liner (16) is fixedly connected to a fine-pore filter plate (14).
2. A filtering device for preparing a waterborne polyurethane coating according to claim 1, characterized in that: The driving assembly comprises a fixing plate (4), the interior of the fixing plate (4) is fixedly connected to a motor (5), the driving end of the motor (5) is fixedly connected to a driving rod (6), and the exterior of the fixing plate (4) is fixedly connected to the exterior of the placement table (3).
3. A filtering device for preparing a waterborne polyurethane coating according to claim 1, characterized in that: An extension plate (17) is fixedly connected to the left side of the outside of the filter barrel (15), a collection box (18) is fixedly connected to the left side of the top of the bottom plate (1), a drawer (19) is slidably connected to the inside of the collection box (18), a collection box (20) is fixedly connected to the top of the bottom plate (1), and a pump body (21) is fixedly connected to the rear side of the collection box (20).
4. A filtering device for preparing a waterborne polyurethane coating according to claim 3, characterized in that: The output end of the pump body (21) is fixedly connected to a delivery pipe (22), the rear side of the placement table (3) is fixedly connected to a connection plate (23), the outside of the filter barrel (15) is fixedly connected to a connection ring (24), and the bottom of the connection ring (24) is fixedly connected to a plurality of fixed plates (25).
5. A filtering device for preparing a waterborne polyurethane coating according to claim 4, characterized in that: The interior of the second fixing plate (25) is rotatably connected to a threaded rod (26), and the exterior of the threaded rod (26) is threadably connected to a rotatable handle (27).
6. A filtering device for preparing a waterborne polyurethane coating according to claim 5, characterized in that: A top cover (28) is fixedly connected to the top of the connecting ring (24), and a discharge pipe (29) is fixedly connected to the front side of the filter barrel (15).
7. A filtering device for preparing a waterborne polyurethane coating according to claim 1, characterized in that: The four internal corners of the filter barrel (15) are all fixedly connected to a connecting frame (30), and the interior of the connecting frame (30) is rotatably connected to a second rotating plate (31).
8. A filtering device for preparing a waterborne polyurethane coating according to claim 7, characterized in that: The interior of the second rotating plate (31) is fixedly connected to a fixing rod (32), and the exterior of the inner container (16) is fixedly connected to the exterior of the fixing rod (32).