A valve inner sphere thermal spraying device for uniform spraying

Abstract

The utility model relates to valve inner sphere thermal spraying technical field discloses a kind of valve inner sphere thermal spraying devices of uniform spraying, including workbench, the upper surface of workbench is fixedly connected with L-shaped electric guide rail, the outer surface of L-shaped electric guide rail is slidably connected with two sliding seats, the outer surface of sliding seat is fixedly connected with driving seat, the outer surface of driving seat is fixedly connected with main spray head, the inside of main spray head is provided with atomization component, the outside of workbench is provided with recovery component;The atomization component includes two feed pipes, the feed pipe is fixedly connected in the inside of main spray head, the feed pipe is helical shape.In the utility model, raw materials form rotating air current by helical feed pipe, then fully impact atomization in whole material groove, so that the raw materials sprayed evenly cover the surface of sphere, effectively improve the uniformity and quality of coating, avoid the coating defect problem caused by uneven spraying.

Description

Technical Field

[0001] This utility model relates to the field of thermal spraying technology for valve inner ball, and more particularly to a thermal spraying device for uniformly spraying valve inner ball. Background Technology

[0002] In the field of valve manufacturing and maintenance, thermal spraying of the valve's internal ball is crucial, as it enhances the ball's wear and corrosion resistance, thereby improving the overall quality and service life of the valve. However, current traditional thermal spraying equipment for valve internal balls has many drawbacks.

[0003] Regarding coating uniformity, traditional equipment struggles to ensure even coverage of the valve's inner sphere. Common nozzle designs and movement patterns are relatively simple and cannot flexibly adapt to the complex curved structure of the inner sphere, resulting in areas with excessively thick or thin coatings, severely impacting coating quality consistency. Furthermore, insufficient adhesion between the coating and substrate is another major challenge for traditional thermal spraying equipment. Traditional spraying processes lack effective technical means to enhance the bond between the coating and substrate. Under conditions of frequent valve opening and closing, and media erosion, the coating easily peels off the substrate, significantly shortening the valve's lifespan and increasing maintenance costs and replacement frequency. Utility Model Content

[0004] To overcome the above shortcomings, this utility model provides a valve inner ball thermal spraying device for uniform spraying, which aims to improve the problems of uneven spraying and insufficient bonding strength between the coating and the substrate in the existing traditional spraying device.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a uniformly sprayed valve inner ball thermal spraying device, comprising a worktable, an L-shaped electric guide rail fixedly connected to the upper surface of the worktable, two slide seats slidably connected to the outer surface of the L-shaped electric guide rail, a drive seat fixedly connected to the outer surface of the slide seats, a main nozzle fixedly connected to the outer surface of the drive seat, an atomizing component disposed inside the main nozzle, and a recovery component disposed outside the worktable; The atomizing component includes two feed pipes, which are fixedly connected inside the main nozzle. The feed pipes are spiral-shaped, with the input end of the feed pipe passing through the main nozzle and connecting to the outside. The output end of the feed pipe is connected to a material trough, which is fixedly connected inside the main nozzle. The output end of the material trough is connected to the output end of the main nozzle.

[0006] As a further description of the above technical solution: the recycling assembly includes multiple recycling plates, which are fixedly connected to the upper surface of the workbench. A support frame is fixedly connected to the lower surface of the workbench. A recycling box is slidably connected inside the support frame. An absorption pump is fixedly connected to the lower end of the support frame. The output end of the absorption pump is connected to the outer surface of the recycling box. An absorption pipe is connected to the input end of the absorption pump. The absorption pipe has multiple input ends, and the input ends of the absorption pipe are connected to the outer surface of the recycling plates.

[0007] As a further description of the above technical solution: the outer surface of the drive seat is fixedly connected to the auxiliary nozzle, the inside of the support frame is fixedly connected to the gas storage tank away from the recovery box and the absorption pump, the output end of the gas storage tank is connected to the air pump, and a delivery pipe is provided between the air pump and the auxiliary nozzle. One end of the delivery pipe is connected to the output end of the air pump, and the other end of the delivery pipe is connected to the outer surface of the auxiliary nozzle.

[0008] As a further description of the above technical solution: a baffle plate is fixedly connected inside the material trough, and holes are opened on the outer surface of the baffle plate.

[0009] As a further description of the above technical solution: a closed cover is rotatably connected to one end of the side surface of the workbench.

[0010] As a further description of the above technical solution: the L-shaped electric guide rail is provided with a shielding cover.

[0011] As a further description of the above technical solution: casters are fixedly connected to the lower surface of the support frame.

[0012] As a further description of the above technical solution: a handrail is fixedly connected to the side surface of the workbench.

[0013] This utility model has the following beneficial effects: In this invention, a spiral feed pipe is used to create a rotating airflow of raw material, which is then fully impacted and atomized in the material tank. This allows the sprayed raw material to evenly cover the surface of the sphere, effectively improving the uniformity and quality of the coating and avoiding coating defects caused by uneven spraying.

[0014] In this invention, an inert gas from a gas storage tank is delivered to an auxiliary nozzle via a delivery pipe and sprayed onto the coating to impact and disturb it. This disrupts any weak bonding layer that may form on the coating surface, resulting in a tighter mechanical bond between the coating and the substrate, and thus improving the bonding strength between the coating and the substrate. Attached Figure Description

[0015] Figure 1 This is a side view of a valve inner ball thermal spraying device for uniform spraying, as proposed in this utility model. Figure 2This is a top view of a valve inner ball thermal spraying device for uniform spraying, as proposed in this utility model. Figure 3 This is a schematic diagram of the atomizing component in a valve inner ball thermal spraying device for uniform spraying, as proposed in this utility model.

[0016] Legend: 1. Workbench; 2. L-shaped electric guide rail; 3. Slide; 4. Drive base; 5. Main nozzle; 6. Atomizing assembly; 601. Feed pipe; 602. Material collection trough; 7. Recovery assembly; 701. Recovery plate; 8. Support frame; 702. Recovery box; 703. Absorption pump; 704. Absorption pipe; 9. Auxiliary nozzle; 10. Air tank; 11. Air pump; 12. Conveying pipe; 603. Barrier plate; 13. Enclosure; 14. Shielding cover; 15. Casters; 16. Handrail. Detailed Implementation

[0017] 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.

[0018] Reference Figures 1-3 An embodiment of this utility model is provided: a uniform spraying device for thermal spraying of valve inner ball, including a workbench 1, an L-shaped electric guide rail 2 fixedly connected to the upper surface of the workbench 1, two slide seats 3 slidably connected to the outer surface of the L-shaped electric guide rail 2, a drive seat 4 fixedly connected to the outer surface of the slide seats 3, a main nozzle 5 fixedly connected to the outer surface of the drive seat 4, an atomizing component 6 provided inside the main nozzle 5, and a recovery component 7 provided outside the workbench 1; The atomizing component 6 includes two feed pipes 601, which are fixedly connected inside the main nozzle 5. The feed pipes 601 are spiral-shaped, with the input end of the feed pipes 601 passing through the main nozzle 5 and connecting to the outside. The output end of the feed pipes 601 is connected to a material trough 602, which is fixedly connected inside the main nozzle 5. The output end of the material trough 602 is connected to the output end of the main nozzle 5.

[0019] The auxiliary nozzle 9 is fixedly connected to the outer surface of the drive base 4. An air storage tank 10 is fixedly connected inside the support frame 8 away from the recovery box 702 and the absorption pump 703. The output end of the air storage tank 10 is connected to the air pump 11. A delivery pipe 12 is provided between the air pump 11 and the auxiliary nozzle 9. One end of the delivery pipe 12 is connected to the output end of the air pump 11, and the other end of the delivery pipe 12 is connected to the outer surface of the auxiliary nozzle 9.

[0020] A baffle plate 603 is fixedly connected inside the material trough 602, and holes are opened on the outer surface of the baffle plate 603.

[0021] A closed cover 13 is rotatably connected to one end of the side surface of the workbench 1.

[0022] The L-shaped electric guide rail 2 is provided with a shield 14 on its exterior.

[0023] Casters 15 are fixedly connected to the lower surface of the support frame 8.

[0024] A handrail 16 is fixedly connected to the side surface of the workbench 1.

[0025] Specifically, the workbench 1 and support frame 8 are used to support and fix the entire device and the valve ball to be sprayed, and provide a mounting base for other components; the enclosed cover 13 on the side surface of the workbench 1 can rotate to enclose the working area during spraying operations, reducing the splashing and loss of raw materials during spraying; the lower part of the support frame 8 is equipped with casters 15 to facilitate the overall movement of the device, allowing the device to be flexibly transferred between different work sites, and the self-locking function of the casters 15 can lock the device after it reaches the designated position, ensuring the stability of the device during operation; the handrail 16 on the side surface of the workbench 1 facilitates the operator to push the device, providing a force point for the operator when moving the device, making the operation more convenient and labor-saving; the L-shaped electric guide rail 2 on the upper part of the workbench 1 can drive the slide 3 to move along a specific trajectory, thereby achieving precise adjustment of the position of the main nozzle 5; the exterior of the L-shaped electric guide rail 2 is equipped with a shielding cover 14 to prevent external impurities from entering the L-shaped electric guide rail 2 and avoiding affecting its normal operation; the outer surface of the slide 3 is equipped with The drive base 4, using existing technology, controls the movement and direction of the nozzle, ensuring its stability during operation. The drive base 4 is externally connected to the main nozzle 5, which is responsible for spraying the material processed by the atomizing component 6 onto the surface of the ball inside the valve, and is one of the key components for achieving the spraying operation. The two spiral feed pipes 601 inside the main nozzle 5 create a rotating airflow from the incoming material, enhancing the mixing and dispersion effect between the materials, which is then integrated by the connected material collection tank 602. The raw materials collide with each other inside the pipe, further enhancing the atomization degree. The material tank 602 is equipped with a baffle plate 603 with holes on its outer surface. The baffle plate 603 provides secondary obstruction to the raw materials, further dispersing and refining them as they pass through the holes, allowing the sprayed raw materials to adhere more evenly to the surface of the ball inside the valve. After the coating is initially formed, the inert gas in the gas storage tank 10 is transported to the auxiliary nozzle 9 through the air pump 11 and the delivery pipe 12, and then sprayed out through the auxiliary nozzle 9 to impact and disturb the coating.

[0026] The recycling assembly 7 includes multiple recycling plates 701, which are fixedly connected to the upper surface of the workbench 1. A support frame 8 is fixedly connected to the lower surface of the workbench 1. A recycling box 702 is slidably connected inside the support frame 8. An absorption pump 703 is fixedly connected to the lower end of the support frame 8. The output end of the absorption pump 703 is connected to the outer surface of the recycling box 702. The input end of the absorption pump 703 is connected to an absorption pipe 704. The absorption pipe 704 has multiple input ends, and the input ends of the absorption pipe 704 are connected to the outer surface of the recycling plates 701.

[0027] Specifically, the recycling component 7 includes multiple recycling plates 701, which are fixedly connected to the upper surface of the workbench 1 for collecting scattered raw materials; the support frame 8 at the bottom of the workbench 1 provides installation support for related components; the recycling box 702 inside the support frame 8 is used to store the recycled raw materials; the absorption pump 703 at the lower end of the support frame 8 sucks the raw materials on the recycling plates 701 into the recycling box 702 through the absorption pipe 704 to realize the recycling of raw materials; the absorption pipe 704 has multiple input ends and the input ends are connected to the outer surface of the recycling plates 701 to ensure that the scattered raw materials can be collected comprehensively.

[0028] Working principle: In use, first, the device is moved to a suitable position using the handle 16 and casters 15, and then the self-locking function of the casters 15 is used to lock the equipment. After the equipment is in place, the ball inside the valve to be sprayed is placed in the working area, and the enclosing cover 13 is rotated to close the working area. Then, the L-shaped electric guide rail 2 is activated to move the slide 3, drive the drive seat 4, and the main nozzle 5 to a suitable position. Next, the raw material enters from the feed pipe 601. Its spiral structure causes the raw material to form two rotating airflows, which then collide with each other in the material tank 602, improving the atomization degree of the raw material. Furthermore, the baffle plate 603 in the material tank 602 provides secondary obstruction of the raw material, further improving the atomization degree. The spraying process ensures more uniform material distribution. After atomization, the two main nozzles 5 simultaneously spray the material onto the inner and outer surfaces of the valve's inner sphere. During the spraying process, once the coating has initially formed, the air pump 11 intermittently sprays inert gas from the gas storage tank 10 onto the coating, impacting and agitating the freshly sprayed coating. This disrupts any weak bonding layers that may form on the coating surface, resulting in a tighter mechanical bond between the coating and the substrate, thereby increasing the bonding strength. During the spraying process, any material not adhering to the sphere is drawn into the recovery tank 702 by the absorption pump 703 through the absorption pipe 704, thus recovering the material and completing the entire spraying workflow.

[0029] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A thermal spraying device for uniformly spraying the inner ball of a valve, comprising a worktable (1), characterized in that: An L-shaped electric guide rail (2) is fixedly connected to the upper surface of the workbench (1). Two slide seats (3) are slidably connected to the outer surface of the L-shaped electric guide rail (2). A drive seat (4) is fixedly connected to the outer surface of the slide seat (3). A main nozzle (5) is fixedly connected to the outer surface of the drive seat (4). An atomizing component (6) is provided inside the main nozzle (5). A recycling component (7) is provided outside the workbench (1). The atomizing component (6) includes two feed pipes (601). The feed pipes (601) are fixedly connected inside the main nozzle (5). The feed pipes (601) are spiral in shape. The input end of the feed pipes (601) passes through the main nozzle (5) and is connected to the outside. The output end of the feed pipes (601) is connected to a material trough (602). The material trough (602) is fixedly connected inside the main nozzle (5). The output end of the material trough (602) is connected to the output end of the main nozzle (5).

2. The valve inner ball thermal spraying device for uniform spraying according to claim 1, characterized in that: The recycling assembly (7) includes multiple recycling plates (701), which are fixedly connected to the upper surface of the workbench (1). A support frame (8) is fixedly connected to the lower surface of the workbench (1). A recycling box (702) is slidably connected inside the support frame (8). An absorption pump (703) is fixedly connected to the lower end of the support frame (8). The output end of the absorption pump (703) is connected to the outer surface of the recycling box (702). The input end of the absorption pump (703) is connected to an absorption pipe (704). The absorption pipe (704) has multiple input ends, and the input ends of the absorption pipe (704) are connected to the outer surface of the recycling plate (701).

3. The valve inner ball thermal spraying device for uniform spraying according to claim 2, characterized in that: The outer surface of the drive seat (4) is fixedly connected to the auxiliary nozzle (9). The inside of the support frame (8) is fixedly connected to the gas storage tank (10) away from the recovery box (702) and the absorption pump (703). The output end of the gas storage tank (10) is connected to the air pump (11). A delivery pipe (12) is provided between the air pump (11) and the auxiliary nozzle (9). One end of the delivery pipe (12) is connected to the output end of the air pump (11), and the other end of the delivery pipe (12) is connected to the outer surface of the auxiliary nozzle (9).

4. The valve inner ball thermal spraying device for uniform spraying according to claim 1, characterized in that: The material trough (602) is fixedly connected to a baffle plate (603), and the outer surface of the baffle plate (603) is provided with holes.

5. The valve inner ball thermal spraying device for uniform spraying according to claim 1, characterized in that: A closed cover (13) is rotatably connected to one end of the side surface of the workbench (1).

6. The valve inner ball thermal spraying device for uniform spraying according to claim 1, characterized in that: The L-shaped electric guide rail (2) is provided with a shield (14) on its exterior.

7. The valve inner ball thermal spraying device for uniform spraying according to claim 2, characterized in that: Casters (15) are fixedly connected to the lower surface of the support frame (8).

8. The valve inner ball thermal spraying device for uniform spraying according to claim 1, characterized in that: The workbench (1) has a handrail (16) fixedly connected to its side surface.

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