A filter device for multi-stage filtration of water-based nano-coatings

Abstract

The utility model relates to filter device technical field, specifically is a kind of water-based nano coating multistage filtration filter device, including shell, apron and fixed base, the shell upper end outer wall screw connection has apron, the apron lower end is provided with aggregate tray, the aggregate tray inner wall one side is welded with connecting shaft, the aggregate tray outer wall lower end screw connection has the support arm of circular array distribution, the support arm lower end outer wall is equipped with fixed ring, the shell inner wall both sides are evenly provided with fixed base, the fixed base inside is placed with support ring, the fixed ring lower end outer wall and support ring upper end outer wall are evenly welded with the arc block of circular array distribution, reach the purpose of driving support block and filter screen vibration, flow through vibration can assist the coating of filter screen outside, ensure the speed of coating through filter screen, improve the filtering efficiency of coating.

Description

Technical Field

[0001] This utility model relates to the field of filtration device technology, specifically to a multi-stage filtration device for water-based nano-coating. Background Technology

[0002] Waterborne nano-coatings are a new type of coating that combines nanoscale materials with paint using water as a solvent or dispersant. The waterborne nature of nano-resins can be achieved by introducing cationic or anionic groups, strong hydrophilic groups, or emulsion polymerization with added emulsifiers. The multi-stage filtration process of waterborne nano-coatings is a key link in ensuring the performance, stability, and application effect of the coating. Its core function is to remove impurities, particles, and components that do not meet the particle size requirements through filtration devices of different precisions, thereby ensuring the quality of the coating. Since the coating has high requirements for particle fineness in subsequent spraying, roller coating, and other application processes, multi-stage filtration can ensure that the coating does not clog the nozzle when passing through the application equipment, while also ensuring uniform coating and reducing defects such as sagging and orange peel.

[0003] CN218306648U discloses a multi-stage filtration device for nano-coating production, including a filter box with a top cover. A drive motor is installed at the top center of the top cover, and feeding covers are fastened to both sides of the top cover on the drive motor. Two opposing protruding ends are provided on the outer edge of the top cover. A fixed outer ring is fixedly fitted around the periphery of the filter box, and electric push rods are installed oppositely on the fixed outer ring. Each electric push rod is connected to a point below the two protruding ends. The output end of the drive motor is connected to a central rotating shaft that extends into the filter box. Two threaded cylinders are fixedly fitted at different heights on the central rotating shaft, and fixed sleeves are threaded onto the threaded cylinders. Coarse-pore mesh plates and fine-pore mesh plates are arranged sequentially from top to bottom on the outer side of the central rotating shaft. Compared with existing ordinary nano-coating filtration devices, this multi-stage filtration device for nano-coating production has the advantage of convenient multi-stage filtration.

[0004] While existing technology CN218306648U offers many benefits during use, it still suffers from the following problems: its filtration efficiency for coatings is not perfect. Due to the viscosity of the coatings, the coatings pass through the filter screen at a relatively slow speed, affecting the filtration efficiency. Utility Model Content

[0005] To address the problems in the existing technology, this utility model provides a filtration device for multi-stage filtration of water-based nano-coatings.

[0006] The technical solution adopted by this utility model to solve its technical problem is a multi-stage filtration device for water-based nano-coatings, including a shell, a cover plate, and a fixing base. The cover plate is screwed to the upper outer wall of the shell, and a collection tray is provided at the lower end of the cover plate. A connecting shaft is welded to one side of the inner wall of the collection tray. A circular array of support arms is screwed to the lower end of the outer wall of the collection tray. A fixing ring is installed on the lower outer wall of the support arm. Fixing bases are provided on both sides of the inner wall of the shell. The support ring is placed inside the fixing base. A circular array of arc-shaped blocks is welded to the lower outer wall of the fixing ring and the upper outer wall of the support ring.

[0007] By adopting the above technical solution, the cover plate can shield the outer shell, clean the filtration process of the coating inside the shell, and facilitate the disassembly and maintenance of the cover plate, collection tray, and support ring, ensuring the maintainability of the equipment. When the connecting shaft and collection tray are driven to rotate by the drive motor, the collection tray collects the coating and discharges it through the discharge port. Due to the rotation, the coating is evenly distributed on the filter screen, avoiding local accumulation and improving filtration efficiency. The fixed ring is driven to rotate, causing the arc-shaped blocks at the upper and lower ends to squeeze against each other. Due to the arc shape of the arc-shaped blocks, when the upper and lower arc-shaped blocks intersect, the lower... The arc-shaped block will move downward under force, thereby pressing the support ring downward and squeezing the rubber buffer pad. The deformability of the rubber buffer pad provides the support ring with a movement distance, and the elasticity of the rubber buffer pad can drive the support ring to return to its original position when the arc-shaped blocks cross again. When the arc-shaped blocks rotate and squeeze repeatedly, they can drive the support ring to move vertically back and forth inside the fixed seat, thereby achieving the purpose of driving the support block and the filter screen to vibrate. The vibration can assist the flow of the coating on the outside of the filter screen, ensuring the speed at which the coating passes through the filter screen and improving the filtration efficiency of the coating.

[0008] Specifically, the lower end of the outer wall of the outer shell is screwed with a circular array of support legs, the lower end of the inner wall of the outer shell adopts a conical shape design, a discharge pipe is welded to the lower end of the inner wall of the outer shell, and a flange is welded to the outer wall of one end of the discharge pipe.

[0009] By adopting the above technical solution, the support feet can support the use position of the outer shell, ensuring the stability of the use position of the outer shell. The conical structure can concentrate the filtered coating into the discharge pipe, ensuring smooth discharge. The discharge pipe can be connected to an external pipe or container through a flange.

[0010] Specifically, a feed hopper is welded to one side of the upper outer wall of the cover plate, and a drive motor is screwed to one side of the upper outer wall of the cover plate. The output shaft of the drive motor passes through the cover plate and is screwed between the cover plate and the connecting shaft.

[0011] By adopting the above technical solution, the feed hopper allows for direct pouring of coatings. The drive motor is directly connected to the connecting shaft via the output shaft, driving the collecting disc to rotate. The discharge position of the discharge port can be adjusted. The drive motor is controlled by the matching controller, and after the drive motor is controlled, the rotation speed of the connecting shaft is one revolution every ten seconds.

[0012] Specifically, a discharge port is provided on one side of the lower end of the inner wall of the collection tray, and the inner wall of the collection tray adopts an inclined design.

[0013] By adopting the above technical solution, the inner wall of the collection tray is inclined towards the discharge port. The coating flows through the feed hopper to the inside of the collection tray for collection, and the inclined inner wall causes the coating to converge towards the discharge port under the action of gravity until the coating flows through the discharge port to the upper part of the filter screen.

[0014] Specifically, a sealing ring is bonded to the outer wall of the support ring, and the sealing ring is in contact with the inner wall of the fixing seat. A rubber buffer pad is bonded to the lower end of the inner wall of the fixing seat, and the upper outer wall of the rubber buffer pad is in contact with the lower outer wall of the support ring.

[0015] By adopting the above technical solution, the sealing ring fits tightly against the inner wall of the fixed seat to form a reliable sealing structure, ensuring the sealing between the support ring and the fixed seat, preventing paint leakage, and the friction between the sealing ring and the inner wall of the fixed seat can maintain the position of the support ring and prevent the support ring from rotating. In addition, the rubber buffer pad relieves the pressure on the support ring and absorbs the impact force of the arc blocks squeezing each other, ensuring that the vibration position of the support ring is stable.

[0016] Specifically, a filter screen is provided on the inner wall of the support ring, and a linkage shaft is provided between the two support rings, with the upper and lower ends of the linkage shaft respectively connected to the support rings by screws.

[0017] By adopting the above technical solution, when the coating flows from top to bottom inside the shell, it can be filtered through two layers of filter screens to form a multi-stage filtration of the coating. The linkage shaft ensures that the two support rings are connected, ensuring that the vibration of the upper support ring can be transmitted to the lower support ring, and ensuring that the two support rings vibrate synchronously.

[0018] Specifically, the upper outer wall of the fixing base is equipped with a circular array of connectors, and the fixing base is connected to the inner wall of the outer shell by screws through the connectors.

[0019] By adopting the above technical solution, the fixing base is fixed to the inner wall of the outer shell through a circular array of connectors. The installation is firm and the force is evenly distributed. It can withstand the pressure and mechanical vibration of the coating during the filtration process and facilitates the subsequent disassembly and maintenance of the fixing base.

[0020] The beneficial effects of this utility model are:

[0021] (1) The water-based nano-coating multi-stage filtration device of the present invention collects the coating in the collection tray and discharges the coating through the discharge port. Due to the rotation, the coating is evenly distributed on the filter screen, avoiding local accumulation and improving the filtration efficiency.

[0022] (2) The water-based nano-coating multi-stage filtration device described in this utility model can drive the support ring to move vertically back and forth inside the fixed seat, thereby achieving the purpose of driving the support block and the filter screen to vibrate. The vibration can assist the flow of the coating on the outside of the filter screen, ensuring the speed at which the coating passes through the filter screen and improving the filtration efficiency of the coating. Attached Figure Description

[0023] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0024] Figure 1 This is a schematic diagram of the main body of the outer shell structure of this utility model;

[0025] Figure 2 This is a cross-sectional view of the outer shell structure of this utility model;

[0026] Figure 3 This is an exploded view of the fixing base structure of this utility model;

[0027] Figure 4 This is an exploded view of the cover plate structure of this utility model.

[0028] In the diagram: 1. Outer shell; 11. Discharge pipe; 12. Support leg; 2. Cover plate; 21. Feed hopper; 22. Drive motor; 23. Collection tray; 24. Connecting shaft; 25. Discharge port; 26. Support arm; 27. Fixing ring; 28. Arc block; 3. Fixing base; 31. Connecting piece; 32. Rubber buffer pad; 33. Support ring; 34. Sealing ring; 35. Filter screen; 36. Linkage shaft. Detailed Implementation

[0029] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0030] To save manpower and improve efficiency, as one embodiment of this utility model, such as Figure 1 , Figure 2 , Figure 3 , Figure 4As shown, the water-based nano-coating multi-stage filtration device of this utility model includes a shell 1, a cover plate 2, and a fixing base 3. The cover plate 2 is screwed to the upper outer wall of the shell 1. A collection tray 23 is provided at the lower end of the cover plate 2. A connecting shaft 24 is welded to one side of the inner wall of the collection tray 23. A circular array of support arms 26 is screwed to the lower end of the outer wall of the collection tray 23. A fixing ring 27 is installed on the lower outer wall of the support arm 26. Fixing bases 3 are provided on both sides of the inner wall of the shell 1. A support ring 33 is placed inside the fixing base 3. A circular array of arc-shaped blocks 28 are welded to the lower outer wall of the fixing ring 27 and the upper outer wall of the support ring 33.

[0031] During use, the cover plate 2 can shield the outer casing 1, cleaning the filtration process of the coating inside the outer casing 1, and facilitating the disassembly and maintenance of the cover plate 2, collection tray 23, and support ring 33, ensuring the maintainability of the equipment. When the connecting shaft 24 and the collection tray 23 are driven to rotate by the drive motor 22, the collection tray 23 collects the coating and discharges it through the discharge port 25. Due to the rotation, the coating is evenly distributed on the filter screen 35, avoiding local accumulation and improving filtration efficiency. The fixed ring 27 is driven to rotate, causing the arc-shaped blocks 28 at the upper and lower ends to press against each other. Due to the arc shape of the arc-shaped blocks 28, when the upper and lower arc-shaped blocks 28 intersect, the lower arc-shaped block... The 28 block will be forced downward, thereby pressing the support ring 33 downward and causing the support ring 33 to squeeze the rubber buffer pad 32. Through the deformability of the rubber buffer pad 32, the support ring 33 is provided with a moving distance. Through the elasticity of the rubber buffer pad 32, the support ring 33 can be driven to reset when the arc block 28 crosses again. When the arc block 28 rotates and squeezes repeatedly, it can drive the support ring 33 to move vertically back and forth inside the fixed seat 3, thereby achieving the purpose of driving the support block and the filter screen 35 to vibrate. Through vibration, the coating on the outside of the filter screen 35 can be assisted to flow, ensuring the speed at which the coating passes through the filter screen 35 and improving the filtration efficiency of the coating.

[0032] For example, in order to discharge materials, such as Figure 1 As shown, the lower end of the outer wall of the outer shell 1 is screwed with a circular array of support legs 12. The lower end of the inner wall of the outer shell 1 adopts a conical shape design. A discharge pipe 11 is welded to the lower end of the inner wall of the outer shell 1, and a flange is welded to the outer wall of one end of the discharge pipe 11.

[0033] During use, the support legs 12 can support the use position of the outer casing 1, ensuring the stability of the use position of the outer casing 1. The conical structure allows the filtered coating to be concentrated into the discharge pipe 11, ensuring smooth discharge. The discharge pipe 11 can be connected to an external pipe or container through a flange.

[0034] To drive rotation, for example, such as Figure 1As shown, a feed hopper 21 is welded to one side of the upper outer wall of the cover plate 2, and a drive motor 22 is screwed to one side of the upper outer wall of the cover plate 2. The output shaft of the drive motor 22 passes through the cover plate 2 and is screwed between the cover plate 2 and the connecting shaft 24.

[0035] In use, the feed hopper 21 allows for direct pouring of paint. The drive motor 22 is directly connected to the connecting shaft 24 via the output shaft, driving the collecting disc 23 to rotate. This allows for adjustment of the discharge position of the discharge port 25. The drive motor 22 is controlled by the matching controller, and after the drive motor 22 is controlled, the rotation speed of the connecting shaft 24 is one revolution every ten seconds.

[0036] For uniform feeding, for example, such as Figure 4 As shown, a discharge port 25 is provided on one side of the lower end of the inner wall of the collection tray 23, and the inner wall of the collection tray 23 adopts an inclined design.

[0037] When in use, the inner wall of the collection tray 23 is inclined towards the discharge port 25. The paint flows through the feed hopper 21 to the inside of the collection tray 23 for collection. The inclined inner wall causes the paint to converge towards the discharge port 25 under the action of gravity until the paint flows through the discharge port 25 to the upper end of the filter screen 35.

[0038] For sealing purposes, exemplarily, such as Figure 3 As shown, a sealing ring 34 is bonded and fixed to the outer wall of the support ring 33. The sealing ring 34 is in contact with the inner wall of the fixing seat 3. A rubber buffer pad 32 is bonded and fixed to the lower end of the inner wall of the fixing seat 3. The upper outer wall of the rubber buffer pad 32 is in contact with the lower outer wall of the support ring 33.

[0039] During use, the sealing ring 34 fits tightly against the inner wall of the fixing seat 3, forming a reliable sealing structure to ensure the sealing between the support ring 33 and the fixing seat 3, preventing paint leakage. The friction between the sealing ring 34 and the inner wall of the fixing seat 3 can maintain the position of the support ring 33, preventing the support ring 33 from rotating. The rubber buffer pad 32 relieves the pressure on the support ring 33 and absorbs the impact force of the arc blocks 28 squeezing each other, ensuring that the vibration position of the support ring 33 is stable.

[0040] For example, to enable coordinated movement, such as... Figure 3 As shown, a filter screen 35 is provided on the inner wall of the support ring 33, and a linkage shaft 36 is provided between the two support rings 33, with the upper and lower ends of the linkage shaft 36 respectively connected to the support rings 33 by screws.

[0041] When in use, as the paint flows from top to bottom inside the outer casing 1, it can be filtered through two layers of filter screens 35 to form a multi-stage filtration of the paint. The linkage shaft 36 ensures that the two support rings 33 are connected, ensuring that the vibration of the upper support ring 33 can be transmitted to the lower support ring 33, and ensuring that the two support rings 33 vibrate synchronously.

[0042] To ensure the location is used, for example, such as Figure 3 As shown, the upper outer wall of the fixing base 3 is equipped with a circular array of connectors 31, and the fixing base 3 is connected to the inner wall of the outer shell 1 by screws through the connectors 31.

[0043] During use, the fixing base 3 is fixed to the inner wall of the outer shell 1 through the circular array of connectors 31. The installation is firm and the force is evenly distributed. It can withstand the pressure and mechanical vibration of the coating during the filtration process and facilitates the subsequent disassembly and maintenance of the fixing base 3.

[0044] When this utility model is in use, the drive motor 22 is started, and the output shaft of the drive motor 22 drives the connecting shaft 24 to rotate. The connecting shaft 24 drives the collecting disc 23 to rotate. The water-based nano coating is poured into the collecting disc 23 through the feeding hopper 21. Since the inner wall of the collecting disc 23 is designed with an inclined shape and the inclined direction is towards the discharge port 25, the coating converges towards the discharge port 25 under the action of gravity. The rotating collecting disc 23 causes the coating to be discharged through the discharge port 25 and evenly distributed on the filter screen 35.

[0045] As the collecting disc 23 rotates, the fixing ring 27 rotates accordingly, and the arc-shaped blocks 28 on the lower outer wall of the fixing ring 27 and the upper outer wall of the support ring 33 press against each other. Due to the arc shape of the arc-shaped blocks 28, when the upper and lower arc-shaped blocks 28 intersect, the lower arc-shaped block 28 will be forced downward, pressing the support ring 33 downward. The support ring 33 presses against the rubber buffer pad 32, causing the rubber buffer pad 32 to deform and providing the support ring 33 with a distance to move. When the arc-shaped blocks 28 intersect again, the elasticity of the rubber buffer pad 32 drives the support ring 33 to return to its original position. During the cyclical pressing process of the arc-shaped blocks 28, the support ring 33 reciprocates vertically inside the fixed seat 3, causing the filter screen 35 to vibrate.

[0046] The vibration of filter screen 35 assists the flow of the coating on its outer side, accelerating the speed at which the coating passes through filter screen 35. The coating flows from top to bottom inside the outer casing 1, passing through two layers of filter screen 35 in sequence, achieving multi-stage filtration;

[0047] After passing through multiple filtration stages, the paint flows to the lower end of the inner wall of the outer casing 1. Due to the conical shape design of the lower end of the inner wall of the outer casing 1, the paint is concentrated in the discharge pipe 11 and discharged through the discharge pipe 11.

[0048] It should be noted that this utility model is a multi-stage filtration device for water-based nano-coatings. All components in this utility model are known to those skilled in the art, and their structure and principle can be learned by those skilled in the art through technical manuals or conventional experimental methods.

[0049] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The descriptions of the above embodiments and specifications are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of protection claimed by this utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A filtration device for multi-stage filtration of water-based nano-coatings, characterized in that, The device includes an outer shell (1), a cover plate (2), and a fixing seat (3). The cover plate (2) is screwed to the upper outer wall of the outer shell (1). A material collection tray (23) is provided at the lower end of the cover plate (2). A connecting shaft (24) is welded to one side of the inner wall of the material collection tray (23). A circular array of support arms (26) is screwed to the lower end of the outer wall of the material collection tray (23). A fixing ring (27) is installed on the lower outer wall of the support arm (26). Fixing seats (3) are provided on both sides of the inner wall of the outer shell (1). A support ring (33) is placed inside the fixing seat (3). A circular array of arc-shaped blocks (28) is welded to the lower outer wall of the fixing ring (27) and the upper outer wall of the support ring (33).

2. The filtration device for multi-stage filtration of water-based nano-coatings according to claim 1, characterized in that, The lower end of the outer wall of the outer shell (1) is screwed with a circular array of support legs (12). The lower end of the inner wall of the outer shell (1) is designed in a conical shape. The lower end of the inner wall of the outer shell (1) is welded with a discharge pipe (11), and a flange is welded to the outer wall of one end of the discharge pipe (11).

3. The filtration device for multi-stage filtration of water-based nano-coatings according to claim 1, characterized in that, A feed hopper (21) is welded to one side of the upper outer wall of the cover plate (2), and a drive motor (22) is screwed to one side of the upper outer wall of the cover plate (2). The output shaft of the drive motor (22) passes through the cover plate (2) and is screwed between the connecting shaft (24).

4. The filtration device for multi-stage filtration of water-based nano-coatings according to claim 1, characterized in that, The material collection tray (23) has a discharge port (25) on one side of the lower end of its inner wall, and the inner wall of the material collection tray (23) is designed with an inclined shape.

5. The filtration device for multi-stage filtration of water-based nano-coatings according to claim 1, characterized in that, A sealing ring (34) is bonded to the outer wall of the support ring (33). The sealing ring (34) is in contact with the inner wall of the fixing seat (3). A rubber buffer pad (32) is bonded to the lower end of the inner wall of the fixing seat (3). The upper outer wall of the rubber buffer pad (32) is in contact with the lower outer wall of the support ring (33).

6. The filtration device for multi-stage filtration of water-based nano-coatings according to claim 1, characterized in that, The inner wall of the support ring (33) is provided with a filter screen (35), and a linkage shaft (36) is provided between the two support rings (33), and the upper and lower ends of the linkage shaft (36) are respectively screwed to the support rings (33).

7. The filtration device for multi-stage filtration of water-based nano-coatings according to claim 1, characterized in that, The upper outer wall of the fixed base (3) is equipped with a circular array of connectors (31), and the fixed base (3) is connected to the inner wall of the outer shell (1) by screws through the connectors (31).

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