A filter box inner cylinder for powder coating production

Abstract

This utility model relates to the field of powder coating production technology, specifically to a filter box inner cylinder for powder coating production. It includes an outer cylinder frame, with shrink-fit side covers fixedly connected to the four sides of the outer cylinder frame. A gas-equalizing ring seat is fitted onto the bottom edge of the outer cylinder frame. An inner cylinder assembly is disposed inside the outer cylinder frame, and a discharge assembly is fixedly connected to the bottom end of the outer cylinder frame. The inner cylinder assembly includes a filter inner cylinder, and the filter inner cylinder is disposed at the center of the outer cylinder frame. This utility model, through the design of the outer cylinder frame, shrink-fit side covers, gas-equalizing ring seat, filter inner cylinder, rotating inner cylinder, docking side plate, drive motor, universal joint, telescopic airbag, top docking side plate, air control pump, and air control valve seat, enables the equipment to perform more thorough shaking and filtration operations on the inner cylinder of the powder coating production process. In actual use, the operator first pours the powder coating to be filtered into the rotating inner cylinder of the filter inner cylinder.

Description

Technical Field

[0001] This utility model relates to the field of powder coating production technology, specifically to an inner cylinder of a filter box used in powder coating production. Background Technology

[0002] Powder coatings are solid powdered synthetic resin coatings composed of solid resin, pigments, fillers, and additives. Unlike ordinary solvent-based and water-based coatings, their dispersion medium is air, not solvent or water, resulting in solvent-free pollution. Powder coatings are broadly classified into thermoplastic and thermosetting types. Thermoplastic powder coatings have a poorer film appearance and weaker adhesion to metals, so they are rarely used in automotive painting. Automotive painting generally uses thermosetting powder coatings. Thermosetting powder coatings use thermosetting synthetic resins as film-forming substances. During the drying process, the resin melts first and then cures into a smooth and hard film through chemical cross-linking. The appearance, various mechanical properties, and corrosion resistance of the film formed by this type of coating can meet the requirements of automotive finishing.

[0003] For example, patent document CN 217369158 U discloses a filtration device for the production of metal powder coatings, including a material tank with a conical structure. The material tank has an inlet and a stirring motor at the top, and an outlet at the bottom. A stirring shaft is mounted on the output shaft of the stirring motor, and multiple stirring rods are mounted on the stirring shaft. Scrapers are connected to the stirring rods. A cylindrical stirring tank is located at the bottom of the outlet and is connected to the outlet. A rotating shaft, driven by a motor, is located at the center of the cylindrical stirring tank and is equipped with multiple grid scrapers. A discharge port is located at the bottom of the cylindrical stirring tank, and a filter screen is mounted on the discharge port. A waste outlet is located beside the discharge port. A receiving box is located below the cylindrical stirring tank, below the discharge port and the waste outlet. This utility model improves filtration efficiency by using a cylindrical stirring tank to filter metal powder coatings and separate the metal powder coatings from the filter residue.

[0004] However, in actual use, due to its own structural limitations, this structure can only be used for direct agitation of powder coatings during filtration. During agitation, the inner cylinder has poor shaking effect on the powder coatings, which easily leads to slow and incomplete separation. At the same time, the equipment cannot perform efficient filtration and loading / unloading of powder coatings, and cannot meet the daily use requirements. Therefore, it is urgent to design a filter box inner cylinder for powder coating production to solve the above problems. Utility Model Content

[0005] The purpose of this utility model is to provide an inner cylinder for a filter box used in powder coating production, in order to solve the problem mentioned in the background art that, due to the limitations of its own structure, the existing structure can only adopt a direct stirring method for powder coating filtration during actual use. During the stirring process, the inner cylinder has a poor shaking effect on the powder coating, which easily leads to slow and incomplete separation efficiency. At the same time, the equipment cannot perform efficient powder coating filtration and loading / unloading operations, and cannot meet the needs of daily use.

[0006] To achieve the above objectives, the present invention provides the following technical solution: an inner cylinder of a filter box for powder coating production, comprising an outer cylinder frame, a shrinkable side cover fixedly connected to the four sides of the outer cylinder frame, an air equalization ring seat sleeved on the bottom edge of the outer cylinder frame, an inner cylinder assembly disposed inside the outer cylinder frame, and a discharge assembly fixedly connected to the bottom end of the outer cylinder frame.

[0007] The inner cylinder assembly includes a filter inner cylinder, the filter inner cylinder is disposed at the center of the outer cylinder frame, and a rotating inner cylinder is disposed inside the filter inner cylinder;

[0008] The discharge assembly includes a discharge seat, and a discharge valve seat is fixedly connected to the bottom end of the discharge seat.

[0009] Preferably, the inner center of the feeding seat is provided with an installation groove, and the inner edge of the feeding seat is provided with an annular mesh groove.

[0010] Preferably, the top of the rotating inner cylinder is provided with a movable cover, and the four sides of the filter inner cylinder are provided with docking side plates.

[0011] Preferably, a drive motor is provided at the bottom end of the rotating inner cylinder, and a universal joint is provided at the bottom end of the drive motor.

[0012] Preferably, the inner wall of the outer cylinder is provided with telescopic airbags on all four sides, and one end of the telescopic airbag is fixedly connected to a top side plate.

[0013] Preferably, a control pump is provided on one side of the gas equalization ring seat, and control valve seats are provided on all four sides of the side of the gas equalization ring seat.

[0014] Preferably, the outer cylinder frame and the inner filter cylinder are adapted to each other.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] This filter box inner cylinder for powder coating production, through its outer cylinder frame, shrink side cover, air distribution ring seat, filter inner cylinder, rotating inner cylinder, docking side plate, drive motor, universal joint, telescopic airbag, top docking side plate, air control pump, and air control valve seat, allows the equipment to perform a more thorough shaking filtration operation within the powder coating production inner cylinder. In actual use, the operator first pours the powder coating to be filtered into the rotating inner cylinder of the filter inner cylinder, then starts the drive motor at the bottom of the filter inner cylinder to rotate the inner cylinder within the filter inner cylinder. The rotating filter operation can simultaneously activate the air pump on the side of the air distribution ring seat. This, along with the four shrink-fit side covers and air control valve seats, performs alternating inflation and deflation operations at the four telescopic airbags on the inner wall of the outer cylinder. This allows the top-connecting side plate at one end of the telescopic airbag to connect with the four connecting side plates on the side of the filter inner cylinder. The filter inner cylinder and the rotating inner cylinder as a whole then undergo omnidirectional vibration and adaptation within the outer cylinder frame via the universal joint at the bottom of the drive motor. This improves the filtration efficiency of the powder coating inside the filter inner cylinder and the rotating inner cylinder, demonstrating the practicality of the equipment design.

[0017] This filter box for powder coating production, with its inner cylinder, outer frame, inner filter cylinder, feeding seat, feeding valve seat, mounting groove, annular mesh groove, and movable cover, further improves the overall performance of the equipment. During daily use, operators can pour powder coating into the rotating inner cylinder from the top and seal it using the movable cover at the top. The feeding seat can be installed at the bottom of the outer frame, connecting to the bottom of both the inner filter cylinder and the rotating inner cylinder. Once the powder coating has been filtered and enters the inner filter cylinder, it flows under gravity into the annular mesh groove at the inner edge of the feeding seat and is finally discharged from the feeding valve seat. The mounting groove in the center of the feeding seat provides installation and limit for the drive motor and universal joint, demonstrating the comprehensiveness of the equipment design. Attached Figure Description

[0018] Figure 1 This is a three-dimensional schematic diagram of the structure of this utility model;

[0019] Figure 2 This is a schematic diagram of the overall structure of the filter inner cylinder of this utility model;

[0020] Figure 3 This is a schematic diagram of the overall structure of the feeding seat of this utility model;

[0021] Figure 4 This utility model Figure 1 Enlarged schematic diagram of the structure at point A;

[0022] Figure 5 This utility model Figure 1 Enlarged schematic diagram of the structure at point B.

[0023] In the diagram: 1. Outer cylinder frame; 2. Shrinkable side cover; 3. Air distribution ring seat; 4. Filter inner cylinder; 5. Rotating inner cylinder; 6. Feeding seat; 7. Feeding valve seat; 8. Mounting groove; 9. Annular mesh groove; 10. Movable cover; 11. Connecting side plate; 12. Drive motor; 13. Universal joint; 14. Telescopic airbag; 15. Top connecting side plate; 16. Air control pump; 17. Air control valve seat. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] Please see Figure 1-5 One embodiment provided by this utility model:

[0026] A filter box inner cylinder for powder coating production includes an outer cylinder frame 1, with shrinkable side covers 2 fixedly connected to the four sides of the outer cylinder frame 1, and an air distribution ring seat 3 fitted onto the bottom edge of the outer cylinder frame 1. An inner cylinder assembly is disposed inside the outer cylinder frame 1, and a discharge assembly is fixedly connected to the bottom end of the outer cylinder frame 1. Telescopic airbags 14 are disposed on the four sides of the inner wall of the outer cylinder frame 1, with a top-mounted side plate 15 fixedly connected to one end of each telescopic airbag 14. A control valve is disposed on one side of the air distribution ring seat 3. The air pump 16 and the air distribution ring seat 3 are equipped with air control valve seats 17 on the four sides of the side. The outer cylinder frame 1 and the filter inner cylinder 4 are adapted to each other. When the air control pump 16 on the side of the air distribution ring seat 3 is started, it works with the four sides of the shrink side cover 2 and the air control valve seat 17 to perform the adaptation and alternating inflation and deflation operation of the four sides of the telescopic airbag 14 on the inner wall of the outer cylinder frame 1, so that the top connecting side plate 15 at one end of the telescopic airbag 14 is adapted to the top of the four sides of the connecting side plate 11 on the side of the filter inner cylinder 4.

[0027] The inner cylinder assembly includes a filter inner cylinder 4, with the filter inner cylinder 4 located at the center of the outer cylinder frame 1. A rotating inner cylinder 5 is located inside the filter inner cylinder 4. The discharge assembly includes a discharge seat 6, with a discharge valve seat 7 fixedly connected to the bottom of the discharge seat 6. An installation groove 8 is located at the center of the discharge seat 6, and an annular mesh groove 9 is located on the inner edge of the discharge seat 6. A movable cover 10 is located at the top of the rotating inner cylinder 5. A docking side plate 11 is located on the four sides of the filter inner cylinder 4. A drive motor 12 is located at the bottom of the rotating inner cylinder 5, and a universal joint 13 is located at the bottom of the drive motor 12. The discharge seat 6 is installed as a whole at the bottom of the outer cylinder frame 1, communicating with the bottom of the filter inner cylinder 4 and the rotating inner cylinder 5. When the powder coating inside the rotating inner cylinder 5 completes filtration and enters the filter inner cylinder 4, it can flow under gravity into the annular mesh groove 9 on the inner edge of the discharge seat 6, and finally be discharged from the discharge valve seat 7.

[0028] Working Principle: During use, the user first pours the powder coating to be filtered into the rotating inner cylinder 5 of the filter inner cylinder 4. Then, the drive motor 12 at the bottom of the filter inner cylinder 4 is started to rotate the inner cylinder 5 within the filter inner cylinder 4. Simultaneously, the air pump 16 on the side of the air distribution ring seat 3 can be started, working in conjunction with the four-sided shrink side covers 2 and the air control valve seat 17 to alternately inflate and deflate the four-sided telescopic airbags 14 on the inner wall of the outer cylinder frame 1. This causes the top-connecting side plate 15 at one end of the telescopic airbag 14 to fit into the four-sided connecting side plates 11 on the side of the filter inner cylinder 4. This allows the filter inner cylinder 4 and the rotating inner cylinder 5 to move in all directions within the outer cylinder frame 1 through the universal joint 13 at the bottom of the drive motor 12. The automatic operation improves the filtration efficiency of the powder coating inside the filter inner cylinder 4 and the rotating inner cylinder 5. During daily use, the operator can pour the powder coating from the top of the rotating inner cylinder 5 and then seal it through the movable cover 10 at the top of the rotating inner cylinder 5. At the same time, the feeding seat 6 can be installed at the bottom of the outer cylinder frame 1 and connected to the bottom of the filter inner cylinder 4 and the rotating inner cylinder 5. When the powder coating inside the rotating inner cylinder 5 is filtered and enters the filter inner cylinder 4, it can enter the annular mesh groove 9 on the inner edge of the feeding seat 6 by gravity and finally be discharged from the feeding valve seat 7. The mounting groove 8 in the center of the feeding seat 6 is used to install and limit the drive motor 12 and the universal joint 13. The above is the complete working principle of this utility model.

[0029] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A filter cartridge for use in a filter box for powder paint production, comprising an outer cartridge frame (1), characterised in that: The outer cylinder frame (1) is fixedly connected to four sides of the side with shrink side covers (2), and the bottom edge of the outer cylinder frame (1) is fitted with a uniform air ring seat (3). The inner cylinder assembly is provided inside the outer cylinder frame (1), and the bottom end of the outer cylinder frame (1) is fixedly connected to a discharge assembly. The inner cylinder assembly includes a filter inner cylinder (4), the filter inner cylinder (4) is disposed at the center of the outer cylinder frame (1), and a rotating inner cylinder (5) is disposed inside the filter inner cylinder (4). The discharge assembly includes a discharge seat (6), and a discharge valve seat (7) is fixedly connected to the bottom end of the discharge seat (6).

2. A filter basket inner cylinder for powder coating production according to claim 1, characterized in that: The feeding seat (6) has an installation groove (8) at its center and an annular mesh groove (9) at its edge.

3. A filter basket inner cylinder for powder coating production according to claim 1, characterized in that: The top of the rotating inner cylinder (5) is provided with a movable cover (10), and the four sides of the filter inner cylinder (4) are provided with docking side plates (11).

4. A filter basket inner cylinder for powder coating production according to claim 1, characterized in that: The bottom end of the rotating inner cylinder (5) is provided with a drive motor (12), and the bottom end of the drive motor (12) is provided with a universal joint (13).

5. A filter basket inner cylinder for powder coating production according to claim 1, characterized in that: The inner wall of the outer cylinder (1) is provided with telescopic airbags (14) on all four sides, and one end of the telescopic airbag (14) is fixedly connected to a top side plate (15).

6. A filter basket inner cylinder for powder coating production according to claim 1, characterized in that: A control pump (16) is provided on one side of the gas equalization ring seat (3), and control valve seats (17) are provided on the four sides of the side of the gas equalization ring seat (3).

7. A filter basket inner cylinder for powder coating production according to claim 1, characterized in that: The outer cylinder frame (1) and the inner filter cylinder (4) are adapted to each other.

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