Electrostatic spraying machine for PE powder special for pipeline

Abstract

The utility model relates to the technical field of electrostatic spraying machine, especially pipeline PE powder special electrostatic spraying machine, its realization different powder spraying demand flexible switching, improve use convenience, including conveying pipe and spray head, a plurality of groups of spray head intercommunication setting on conveying pipe, still include support device, moving device, access valve, base and grating, two groups of access valve are respectively intercommunication setting in the both sides of conveying pipe, and two groups of access valve are respectively with external PE powder feeding equipment and FBE powder feeding equipment intercommunication, base setting is below a plurality of groups of spray head, and base top end is provided with opening, and grating installs at base top end opening place, and grating is provided with support device, and support device is used for supporting pipeline, and conveying pipe installs on moving device, and moving device is used for driving conveying pipe to move position.

Description

Technical Field

[0001] This utility model relates to the technical field of electrostatic spraying machines, and in particular to an electrostatic spraying machine for PE powder coating of pipelines. Background Technology

[0002] The core technology of the dedicated electrostatic powder coating machine for pipelines is the directional adsorption of powder driven by a high-voltage electrostatic field. A strong electric field is formed at the spray gun head by a high-voltage electrostatic generator (output voltage 30-100kV), which ionizes the air and generates corona discharge. When PE powder particles pass through the electric field area, they capture charged ions and become negatively charged on the surface. The grounded pipeline acts as the anode, and the charged powder flies towards the pipeline surface under the propulsion of the electric field force and airflow. Due to the repulsion of like charges, the powder preferentially adsorbs onto the uncovered areas, automatically forming a uniform coating.

[0003] Currently, among existing electrostatic spraying equipment for pipelines, such as the patent with announcement number CN216988212U, this utility model discloses an electrostatic coating anti-corrosion spraying device for pipelines, relating to the field of pipeline anti-corrosion technology. This utility model includes a workbench, with a placement box fixedly connected to the top of the workbench and a guide hopper fixedly connected to the bottom of the workbench. The workbench and the guide hopper are interconnected, and a motor is fixedly connected to one side of the top of the workbench.

[0004] During the use of the existing equipment, it was found that the existing equipment is not convenient for flexibly switching between spraying PE powder and FBE powder on pipelines, which reduces the convenience of use. Utility Model Content

[0005] To solve the above-mentioned technical problems, this utility model provides a special electrostatic spraying machine for PE powder on pipelines that allows for flexible switching between different powder spraying requirements and improves ease of use.

[0006] This utility model discloses a dedicated electrostatic spraying machine for PE powder coating of pipelines, comprising a conveying pipe and spray heads, with multiple sets of spray heads connected and mounted on the conveying pipe; it also includes a support device, a moving device, inlet valves, a base, and a grid. Two sets of inlet valves are respectively connected and mounted on both sides of the conveying pipe, and are respectively connected to an external PE powder feeding device and an FBE powder feeding device. The base is located below the multiple sets of spray heads, and an opening is provided at the top of the base. The grid is installed at the opening at the top of the base, and a support device is provided on the grid for supporting the pipeline. The conveying pipe is mounted on the moving device, which is used for... The device moves the conveying pipe to a new position. The pipe to be sprayed is placed on the support device, and the moving device moves the conveying pipe to a new position, causing multiple sets of nozzles to move above the pipe. When PE powder needs to be sprayed onto the pipe, the external PE powder supply equipment delivers charged PE powder through the first set of inlet valves into the conveying pipe, enabling multiple sets of nozzles to spray PE powder onto the pipe. When FBE powder needs to be sprayed onto the pipe, the external FBE powder supply equipment delivers powder through the second set of inlet valves into the conveying pipe, enabling flexible switching between different powder spraying requirements and improving ease of use.

[0007] Preferably, the moving device includes a frame, telescopic rods, cylinders, a cover, and guide rails. The frame is slidably mounted on the guide rails. The fixed ends of multiple sets of telescopic rods and cylinders are all mounted on the outer wall of the frame, and the moving ends of multiple sets of telescopic rods and cylinders are all connected to the top of the cover. The delivery pipe is mounted on the inner wall of the cover. After the pipe is placed above the base, the frame moves to move multiple sets of spray nozzles above the pipe. Then, the cylinder moves the cover downward, causing the cover to bring multiple sets of spray nozzles closer to the pipe. Subsequently, the pipe is sprayed. During the spraying process, the frame moves forward at a constant speed, while the supporting device rotates the pipe, thereby ensuring that the outer wall of the pipe is fully sprayed.

[0008] Preferably, it also includes a rack, a gear, and a first motor. The rack is mounted on the outer wall of the guide rail, the gear is rotatably mounted on the outer wall of the frame, and the gear meshes with the rack. The first motor is mounted on the outer wall of the frame, and the output end of the first motor is connected to the gear. The first motor drives the gear to rotate, so that the gear moves the frame by meshing with the rack.

[0009] Preferably, the support device includes support rollers and a second motor. Multiple sets of support rollers and multiple sets of second motors are installed on the top of the grid. The output ends of the multiple sets of second motors are concentrically connected to the multiple sets of support rollers. The pipe is placed on the multiple sets of support rollers, and the multiple sets of second motors drive the multiple sets of support rollers to rotate, so that the multiple sets of support rollers drive the pipe to rotate.

[0010] Preferably, it also includes a collection hood and an air duct, with the collection hood connected to the bottom of the grille and the air duct connected to the collection hood; by using an external dust collection device to draw air into the air duct, the air duct passes through the collection hood to absorb the dust generated during spraying, thereby improving the cleanliness of the working environment and increasing the convenience of powder recovery.

[0011] Preferably, it also includes a heater, which is installed on the outer wall of the cover; the heater bakes the sprayed pipe surface at high temperature to improve the curing effect of the pipe surface material.

[0012] Preferably, it also includes a cleaning valve, which is connected to the outer wall of the hood; this improves the convenience of cleaning and discharging residual powder collected inside the hood.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows: the pipe to be sprayed is placed on the support device, and the moving device drives the conveying pipe to move to a different position, so that multiple sets of nozzles move to the top of the pipe. When it is necessary to spray PE powder onto the pipe, the external PE powder feeding device delivers charged PE powder through the first set of inlet valves into the conveying pipe, so that multiple sets of nozzles can spray PE powder onto the pipe. When it is necessary to spray FBE powder onto the pipe, the external FBE powder feeding device delivers powder through the second set of inlet valves into the conveying pipe, so as to realize flexible switching of different powder spraying requirements and improve the convenience of use. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the isometric structure of this utility model; Figure 2 This is a partial isometric structural diagram showing the connection between the telescopic rod and the frame, etc. Figure 3 This is a partial isometric structural diagram of the connection between the cylinder and the cover, etc. Figure 4 This is an isometric structural diagram of the connection between the support roller and the grid, etc. Figure 5 This is an isometric structural diagram showing the connection between the base and the grille, etc.

[0015] The following are labels in the attached diagram: 1. Delivery pipe; 2. Nozzle; 3. Inlet valve; 4. Base; 5. Grille; 6. Frame; 7. Telescopic rod; 8. Cylinder; 9. Cover; 10. Guide rail; 11. Rack; 12. Gear; 13. First motor; 14. Support roller; 15. Second motor; 16. Collection cover; 17. Air duct; 18. Heater; 19. Cleaning valve. Detailed Implementation

[0016] To facilitate understanding of this utility model, a more complete description will be given below with reference to the accompanying drawings. This utility model can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to make the disclosure of this utility model more thorough and complete. Example 1

[0017] like Figures 1 to 5 As shown, the present invention provides a special electrostatic spraying machine for PE powder coating of pipelines, including a conveying pipe 1 and a spray head 2, with multiple sets of spray heads 2 connected and arranged on the conveying pipe 1; it also includes a support device, a moving device, an inlet valve 3, a base 4 and a grid 5, with two sets of inlet valves 3 respectively connected and arranged on both sides of the conveying pipe 1, and the two sets of inlet valves 3 respectively connected to an external PE powder feeding device and an FBE powder feeding device, the base 4 is arranged below the multiple sets of spray heads 2, and an opening is provided at the top of the base 4, the grid 5 is installed at the opening at the top of the base 4, and a support device is provided on the grid 5 for supporting the pipeline, the conveying pipe 1 is installed on the moving device, and the moving device is used to move the conveying pipe 1 to a different position; like Figure 1 As shown, the mobile device includes a frame 6, telescopic rods 7, cylinders 8, a cover 9, and a guide rail 10. The frame 6 is slidably mounted on the guide rail 10. The fixed ends of multiple sets of telescopic rods 7 and cylinders 8 are all mounted on the outer side wall of the frame 6, and the moving ends of multiple sets of telescopic rods 7 and cylinders 8 are all connected to the top of the cover 9. The conveying pipe 1 is mounted on the inner side wall of the cover 9. In this embodiment, the pipe to be sprayed is placed on the support device, and the moving device drives the conveying pipe 1 to move to a position, so that multiple sets of nozzles 2 move above the pipe. When it is necessary to spray PE powder onto the pipe, the external PE powder feeding device delivers charged PE powder into the conveying pipe 1 through the first set of inlet valves 3, so that multiple sets of nozzles 2 can spray PE powder onto the pipe. When it is necessary to spray FBE powder onto the pipe, the external FBE powder feeding device delivers powder into the conveying pipe 1 through the second set of inlet valves 3, so as to realize flexible switching of different powder spraying requirements and improve the convenience of use. Example 2

[0018] Based on Example 1, such as Figure 3 As shown, the electrostatic spraying machine for PE powder coating of pipes of this utility model also includes a rack 11, a gear 12 and a first motor 13. The rack 11 is installed on the outer wall of the guide rail 10, the gear 12 is rotatably installed on the outer wall of the frame 6 and meshes with the rack 11. The first motor 13 is installed on the outer wall of the frame 6 and the output end of the first motor 13 is connected to the gear 12. like Figure 4As shown, the support device includes support rollers 14 and second motors 15. Multiple sets of support rollers 14 and multiple sets of second motors 15 are all installed on the top of the grid 5. The output ends of the multiple sets of second motors 15 are respectively concentrically connected to the multiple sets of support rollers 14. like Figure 4 As shown, it also includes a collection cover 16 and an air duct 17. The collection cover 16 is connected to the bottom end of the grille 5, and the air duct 17 is connected to the collection cover 16. like Figure 3 As shown, it also includes a heater 18, which is mounted on the outer wall of the cover 9; like Figure 2 As shown, it also includes a cleaning valve 19, which is connected to and disposed on the outer wall of the cover 9; In this embodiment, after the pipe is placed above the base 4, the frame 6 moves to move multiple sets of spray nozzles 2 above the pipe. Then, the cylinder 8 moves the cover 9 downward, so that the cover 9 moves multiple sets of spray nozzles 2 closer to the pipe. The pipe is then sprayed. During the spraying process, the frame 6 moves forward at a constant speed, while the support device drives the pipe to rotate, so that the outer wall of the pipe is fully sprayed. The first motor 13 drives the gear 12 to rotate, so that the gear 12 drives the frame 6 to move through meshing with the rack 11.

[0019] This utility model relates to a dedicated electrostatic spraying machine for PE powder coating of pipelines. During operation, the pipeline to be coated is placed on a support device. A moving device moves the conveying pipe 1, causing multiple sets of spray nozzles 2 to move above the pipeline. When PE powder needs to be sprayed onto the pipeline, an external PE powder supply device delivers charged PE powder through the first set of inlet valves 3 into the conveying pipe 1, enabling multiple sets of spray nozzles 2 to spray PE powder onto the pipeline. When FBE powder needs to be sprayed onto the pipeline, an external FBE powder supply device delivers powder through the second set of inlet valves 3 into the conveying pipe 1.

[0020] The cylinder 8, first motor 13, second motor 15, and heater 18 of this utility model's special electrostatic spraying machine for PE powder coating of pipes are commercially available. Technical personnel in this industry only need to install and operate it according to the accompanying instruction manual, without requiring any creative work from those skilled in the art.

[0021] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A dedicated electrostatic spraying machine for PE powder coating of pipelines, comprising a conveying pipe (1) and spray nozzles (2), wherein multiple sets of spray nozzles (2) are connected and arranged on the conveying pipe (1); characterized in that, It also includes a support device, a moving device, an inlet valve (3), a base (4) and a grid (5). Two sets of inlet valves (3) are respectively connected to both sides of the conveying pipe (1), and the two sets of inlet valves (3) are respectively connected to the external PE powder feeding equipment and the FBE powder feeding equipment. The base (4) is set below multiple sets of nozzles (2). An opening is provided at the top of the base (4). The grid (5) is installed at the opening at the top of the base (4). A support device is provided on the grid (5). The support device is used to support the pipe. The conveying pipe (1) is installed on the moving device. The moving device is used to drive the conveying pipe (1) to move its position.

2. The electrostatic spraying machine for PE powder coating of pipes as described in claim 1, characterized in that, The mobile device includes a frame (6), telescopic rods (7), cylinders (8), a cover (9), and a guide rail (10). The frame (6) is slidably mounted on the guide rail (10). The fixed ends of multiple sets of telescopic rods (7) and cylinders (8) are all mounted on the outer side wall of the frame (6). The moving ends of multiple sets of telescopic rods (7) and cylinders (8) are all connected to the top of the cover (9). The conveying pipe (1) is mounted on the inner side wall of the cover (9).

3. The electrostatic spraying machine for PE powder coating of pipes as described in claim 2, characterized in that, It also includes a rack (11), a gear (12) and a first motor (13). The rack (11) is mounted on the outer wall of the guide rail (10). The gear (12) is rotatably mounted on the outer wall of the frame (6). The gear (12) meshes with the rack (11). The first motor (13) is mounted on the outer wall of the frame (6). The output end of the first motor (13) is connected to the gear (12).

4. The electrostatic spraying machine for PE powder coating of pipes as described in claim 1, characterized in that, The support device includes a support roller (14) and a second motor (15). Multiple sets of support rollers (14) and multiple sets of second motors (15) are installed on the top of the grid (5). The output ends of the multiple sets of second motors (15) are concentrically connected to the multiple sets of support rollers (14).

5. The electrostatic spraying machine for PE powder coating of pipes as described in claim 1, characterized in that, It also includes a collection cover (16) and an air duct (17), the collection cover (16) being connected to the bottom end of the grille (5), and the air duct (17) being connected to the collection cover (16).

6. The electrostatic spraying machine for PE powder coating of pipes as described in claim 2, characterized in that, It also includes a heater (18), which is installed on the outer wall of the enclosure (9).

7. The electrostatic spraying machine for PE powder coating of pipes as described in claim 2, characterized in that, It also includes a cleaning valve (19), which is connected to the outer wall of the cover (9).

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