Closed-loop powder coating production equipment without dust removal box

Abstract

The utility model relates to the technical field of powder coating, in particular to dust-removal-box-free closed-loop powder coating production equipment which comprises a collecting box, a grinding disc body and a charging barrel, the charging barrel and the collecting box are arranged at the top and the bottom of the grinding disc body respectively, and a grinding mechanism capable of adjusting the thickness of powder is arranged in the grinding disc body. Comprising a rotating disc, grinding blocks, telescopic blocks, a sealing disc and a cone, the telescopic blocks are circumferentially and evenly distributed in the rotating disc, the cone is arranged in the center of the rotating disc and driven by an electric push rod on the sealing disc to be ejected or retracted, the grinding blocks are fixed to the tops of the telescopic blocks, and the bottoms of the telescopic blocks are attached to the conical surface of the cone; a motor is arranged on the left side of the collecting box, and a driving gear is arranged at the output end of the motor. The utility model has the advantages that: 1, dust pollution and harm to the health of workers are avoided due to the closed design; 2, a dust removal box-free design is adopted, so that the occupied area is saved; the distance of the grinding block can be automatically adjusted, and the thickness of the powder can be automatically adjusted.

Description

Technical Field

[0001] This utility model relates to the field of powder coating technology, specifically to a closed-loop powder coating production equipment without a dust collector. Background Technology

[0002] Powder coatings are coatings that exist in a solid powder state, are applied in powder form, and are then heated to melt, level, or cure into a film. Powder coatings have low VOC content, are easy to remove, and oversprayed coatings can be recycled and reused; the coating film after application produces virtually no pinholes, is generally easier to apply than liquid coatings, and the resulting film has good durability.

[0003] The powder coating production process requires grinding, which generates a large amount of dust, causing significant pollution to the surrounding environment and harming workers' health. However, adding a dust collection box increases manufacturing costs and floor space requirements. Therefore, a dust collection box-free closed-loop powder coating production equipment is needed. Summary of the Invention

[0004] The purpose of this invention is to provide a closed-loop powder coating production equipment without a dust collector to solve the problems existing in the background technology.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a dust-free closed-loop powder coating production equipment, comprising a collection box 1, a grinding disc 19, and a material cylinder 12. The material cylinder 12 and the collection box 1 are respectively located at the top and bottom of the grinding disc 19, and a feed inlet 11 is provided at the connection between the top of the grinding disc 19 and the material cylinder 12. The grinding disc 19 is characterized by having an adjustable powder coarseness grinding mechanism, comprising a turntable 15, grinding blocks 13, telescopic blocks 14, a sealing disc 8, and a cone 5. The telescopic blocks 14 are evenly distributed circumferentially within the turntable 15. The cone 5 is located at the center of the turntable 15 and is driven to extend or retract by an electric push rod 6 on the sealing disc 8. The top of the telescopic blocks 14 is fixed with the grinding blocks 13, and the bottom is in contact with the conical surface of the cone 5. The sealing disc 8 is fixed to the left side of the turntable 15. A motor 4 is provided on the left side of the collection box 1, and a drive gear 3 is provided at the output end of the motor 4.

[0006] Preferably, the outer ring of the sealing disc 8 is provided with a gear that meshes with the drive gear 3.

[0007] Preferably, a spring groove 17 and a fixed spring groove 7 are respectively provided between the telescopic block 14 and the turntable 15, and a compression spring 18 is provided in the spring groove 17 and the fixed spring groove 7.

[0008] Preferably, the spring groove 17 and the fixed spring groove 7 are semicircular arcs with the same diameter and equal groove lengths.

[0009] Preferably, a guide key 16 is provided between the telescopic block 14 and the turntable 15.

[0010] Preferably, a sealing plate 10 is provided on the left side of the grinding disc 19, and a bearing is provided between the sealing plate 10, the sealing disc 8, and the turntable 15, and the right end of the grinding turntable 15 is supported on the grinding disc 19 by the bearing.

[0011] Preferably, the sealing plate 10 is provided with a sealing ring 9.

[0012] Preferably, a filter screen 20 is provided below the grinding disc 19 and communicates with the collection box 1.

[0013] Compared with the existing technology, the beneficial effects of this utility model are: first, the closed design avoids dust pollution and harm to workers' health; second, the dust-free design saves floor space; and third, the grinding blocks can automatically adjust the distance to achieve automatic adjustment of the powder coarseness. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of this utility model.

[0015] In the diagram: 1. Collection box; 2. Support frame; 3. Drive gear; 4. Motor; 5. Cone; 6. Electric actuator; 7. Fixed spring groove; 8. Sealing disc; 9. Sealing ring; 10. Sealing plate; 11. Feed inlet; 12. Material cylinder; 13. Grinding block; 14. Telescopic block; 15. Turntable; 16. Guide key; 17. Spring groove; 18. Compression spring; 19. Grinding disc body; 20. Filter screen. Detailed Implementation

[0016] 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.

[0017] Please see Figure 1 This utility model provides a technical solution: a dust-free closed-loop powder coating production equipment, including a collection box 1, a grinding disc 19 and a material cylinder 12. The material cylinder 12 and the collection box 1 are respectively located at the top and bottom of the grinding disc 19, and a feed inlet 11 is provided at the connection between the top of the grinding disc 19 and the material cylinder 12.

[0018] The grinding disc 19 is equipped with an adjustable powder coarseness grinding mechanism, including a turntable 15, grinding blocks 13, telescopic blocks 14, a sealing disc 8, and a cone 5. The telescopic blocks 14 are evenly distributed circumferentially within the turntable 15. The cone 5 is located at the center of the turntable 15 and is driven to extend or retract by an electric push rod 6 on the sealing disc 8. The top of the telescopic blocks 14 is fixed with the grinding blocks 13, and the bottom is in contact with the conical surface of the cone 5. The sealing disc 8 is fixed to the left side of the turntable 15. A spring groove 17 and a fixed spring groove 7 are respectively provided between the telescopic blocks 14 and the turntable 15, and compression springs 18 are provided in the spring grooves 17 and the fixed spring grooves 7. The spring grooves 17 and the fixed spring grooves 7 are semi-circular arcs with the same diameter and equal length. At the same time, a guide key 16 is also provided between the telescopic blocks 14 and the turntable 15.

[0019] When the electric push rod 6 is pushed out, the cone 5 moves to the right, and at the same time drives the telescopic blocks 14 around it to move outward at equal distances. When the electric push rod 6 is retracted, the compression spring 18 reacts to the telescopic blocks 14, driving the telescopic blocks 14 to move inward, thereby controlling the distance between the grinding block 13 and the inner wall of the grinding disc 19 and adjusting the fineness of the powder.

[0020] A bracket 2 is provided on the left side of the collection box 1, and a motor 4 is fixed on the top of the bracket 2. The output end of the motor 4 is provided with a drive gear 3, which is located below the sealing disc 8. The outer ring of the sealing disc 8 is provided with a gear that meshes with the drive gear 3. Meanwhile, a sealing plate 10 is provided on the left side of the grinding disc body 19, and a bearing is provided between the sealing plate 10, the sealing disc 8, and the turntable 15. The right end of the grinding turntable 15 is supported on the grinding disc body 19 by the bearing. In this way, under the action of the motor 4, the turntable 15 and the grinding block 13 can be driven to rotate in the grinding disc body 19, and the coating is ground.

[0021] The sealing plate 10 is equipped with a sealing ring 9 to prevent dust from overflowing. The grinding disc 19 is equipped with a filter screen 20 which is connected to the collection box 1 to filter the ground and filtered powder into the collection box 1.

[0022] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A closed-circuit powder coating production equipment without dust removal tank, comprising a collecting tank (1), a grinding disc body (19) and a material cylinder (12), the material cylinder (12) and the collecting tank (1) are respectively arranged at the top and the bottom of the grinding disc body (19), and a feeding port (11) is arranged at the connecting position of the top of the grinding disc body (19) and the material cylinder (12), characterized in that: The grinding disc body (19) is provided with a grinding mechanism for adjusting the fineness of powder, which comprises a rotating disc (15), grinding blocks (13), telescopic blocks (14), a sealing disc (8) and a cone (5), the telescopic blocks (14) are uniformly distributed in the rotating disc (15) in a circumferential manner, the cone (5) is arranged at the center of the rotating disc (15) and is driven to be pushed out or retracted by an electric push rod (6) on the sealing disc (8), the top of each telescopic block (14) is fixed with a grinding block (13), the bottom is attached to the conical surface of the cone (5), and the sealing disc (8) is fixed to the left side of the rotating disc (15); the left side of the collecting box (1) is provided with a motor (4), and the output end of the motor (4) is provided with a driving gear (3). ​ 2. A closed loop powder coating production plant without a dusting bin according to claim 1, characterized in that: The outer ring of the sealing disc (8) is provided with a gear meshing with the driving gear (3).

3. A closed loop powder coating production plant without a dusting bin according to claim 1, characterized in that: The telescopic blocks (14) and the rotating disc (15) are respectively provided with spring grooves (17) and fixed spring grooves (7), and the spring grooves (17) and the fixed spring grooves (7) are provided with compression springs (18).

4. A closed loop powder coating production apparatus of the type defined in claim 3, characterised in that: The spring grooves (17) and the fixed spring grooves (7) are semicircular arcs with the same diameter, and the groove lengths are equal.

5. A closed loop powder coating production plant without a dusting bin according to claim 1, characterized in that: The telescopic blocks (14) and the rotating disc (15) are further provided with guide keys (16).

6. A closed loop powder coating production apparatus without a dust removal bin according to claim 1, characterized in that: The left side of the grinding disc body (19) is provided with a sealing plate (10), bearings are arranged between the sealing plate (10) and the sealing disc (8) and the rotating disc (15), and the right end of the rotating disc (15) is supported on the grinding disc body (19) through the bearings.

7. A closed loop powder coating production apparatus of the type defined in claim 6, characterised in that: The sealing plate (10) is provided with a sealing ring (9).

8. A closed loop powder coating production apparatus of the dust-free booth type according to claim 6, characterized in that: The lower side of the grinding disc body (19) is provided with a filter screen (20) and is communicated with the collecting box (1). The lower side of the grinding disc body (19) is provided with a filter screen (20) and is communicated with the collecting box (1).

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