Surface anti-corrosion spraying device for pipeline machining
By combining a chain conveyor with a spraying mechanism, the automatic rotation and positioning of the gas pipeline were achieved, solving the problem of paint adhesion and improving the spraying effect and aesthetics.
Patent Information
- Application Number
- CN202423190180.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-24
- Publication Date
- 2025-12-02
- Estimated Expiration
- 2034-12-24
Smart Images

Figure CN223622534U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of pipeline painting equipment, and in particular to a surface anti-corrosion spraying device for pipeline processing. Background Technology
[0002] Before gas pipelines are put into use, they are exposed to the outdoor environment for a long time and are easily affected by corrosion factors such as rain, sunlight, wind erosion and chemicals, which can cause rust and aging on their surface. Therefore, anti-corrosion spraying treatment is required for gas pipelines. By applying anti-corrosion spraying to the outside, a protective layer can be formed to isolate these corrosive factors from direct contact with the pipeline, thereby slowing down the corrosion rate and extending its service life.
[0003] When performing anti-corrosion spraying on the outer surface of gas pipelines, the spraying equipment used can provide full coverage of the outer surface. For example, the Chinese utility model patent with publication number CN221832655U, "A Pipeline Processing and Painting Mechanism," uses a controller to activate the extension and retraction of three electric push rods. The extension and retraction of the three electric push rods respectively drive the displacement of the cleaning brush, thereby cleaning the dust on the outer surface of pipelines of different diameters and effectively improving the quality of the paint spraying on the pipeline body. However, since this application requires conveying rollers to transport the pipeline, and the paint needs a certain amount of time to dry after the pipeline is painted, when the painted part of the pipeline passes through one of the conveying rollers, the undried paint on the outer surface of the pipeline will adhere to the conveying roller, causing the paint on the outer surface of the pipeline to become brittle, thus affecting the anti-corrosion effect of the pipeline and also affecting the aesthetics of the outer surface of the pipeline. Utility Model Content
[0004] The purpose of this invention is to provide a surface anti-corrosion spraying device for pipe processing, which can effectively solve the problems in the background art.
[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows:
[0006] A surface anti-corrosion spraying device for pipe processing includes a chain conveyor and a spraying mechanism. Multiple support plates are fixedly connected to both sides of the chain conveyor. A first guide rail is fixedly connected to the multiple support plates. Carrier plates are fixedly connected to the two conveying chains of the chain conveyor. Toothed rings are movably installed on the carrier plates. Two L-shaped expansion plates are movably installed inside the carrier plates. Clamping rods are fixedly installed on one side of the top of the two L-shaped expansion plates.
[0007] As a further preferred embodiment of this utility model, a toothed plate is fixedly installed on one side of the top of the chain conveyor, with the teeth of the toothed plate facing the toothed ring side;
[0008] Based on this, the toothed plate can be used in conjunction with the toothed ring to rotate the pipe.
[0009] As a further preferred embodiment of this utility model, a second guide rail is fixedly installed at one end of the first guide rail, and the second guide rail is arc-shaped with its longitudinal width gradually decreasing from one end to the other.
[0010] Based on this, by setting the first guide rail and the second guide rail, the two L-shaped expansion plates can be guided and moved, and the two L-shaped expansion plates can be inserted and installed on one side of the first guide rail for horizontal displacement.
[0011] As a further preferred embodiment of this utility model, two sliding grooves are provided in the carrier plate, a baffle is fixedly installed at the bottom of the carrier plate near the sliding groove, a shaft seat is fixedly installed at the top of the carrier plate, and the curved plate chains corresponding to one side of the chain conveyor are fixedly installed on both sides of the carrier plate, and the carrier plate is located above the first guide rail.
[0012] As a further preferred embodiment of this utility model, the toothed ring is magnetic, and a connecting ring is fixedly installed at the bottom of the toothed ring, the connecting ring being inserted into the shaft seat;
[0013] Based on this, the carrier plate is installed between two curved plates in the chain conveyor. The carrier plate can rotate cyclically, so that the toothed ring meshes with one side of the toothed plate, causing the toothed ring to rotate automatically.
[0014] As a further preferred embodiment of this utility model, the longitudinal portion of the L-shaped expansion plate is inserted into the corresponding slide groove, a compression spring is movably connected between the L-shaped expansion plate and the baffle, and multiple rubber wheels are rotatably mounted on one side of the clamping rod;
[0015] Based on this, after the two L-shaped expansion plates move to one side of the first guide rail along with the carrier plate, the first guide rail can be used to squeeze and move the two L-shaped expansion plates to one side respectively, thereby causing the two L-shaped expansion plates to drive the top clamping rod to one side respectively, thereby positioning the pipe placed on the toothed ring, which is conducive to cooperating with the spraying mechanism to spray paint on the outer surface of the pipe.
[0016] Compared with the prior art, the present invention has the following beneficial effects:
[0017] In this invention, a first guide rail and a second guide rail are set on two chain conveyor supports, and a carrier plate is set on two curved plate chains of the chain conveyor. Two L-shaped expansion plates are set inside the carrier plate, and clamping rods are fixedly installed on the L-shaped expansion plates. This allows the toothed ring and toothed plate to automatically limit the vertical pipe and realize the automatic rotation of the pipe. This facilitates the spraying mechanism to spray the outer surface of the pipe without affecting the paint that is not yet dry on the outer surface of the pipe. Attached Figure Description
[0018] Figure 1 This is a schematic diagram of the main structure of this utility model;
[0019] Figure 2 for Figure 1 Enlarged view of point A in the middle;
[0020] Figure 3 This is a schematic diagram of the first guide rail, the second guide rail, and the carrier plate structure of this utility model;
[0021] Figure 4 This is a cross-sectional view of the carrier plate, L-shaped expansion plate, and clamping rod of this utility model.
[0022] In the diagram: 1. Chain conveyor; 2. Spraying mechanism; 3. Support plate; 4. First guide rail; 5. Carrier plate; 6. Toothed ring; 7. L-shaped expansion plate; 8. Clamping rod; 9. Toothed plate; 10. Second guide rail; 11. Slide groove; 12. Baffle; 13. Shaft seat; 14. Connecting ring; 15. Compression spring; 16. Rubber wheel. Detailed Implementation
[0023] 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.
[0024] like Figures 1-4 As shown, the present invention provides a surface anti-corrosion spraying device for pipe processing, including a chain conveyor 1 and a spraying mechanism 2. Multiple support plates 3 are fixedly connected to both sides inside the chain conveyor 1. First guide rails 4 are fixedly connected to the multiple support plates 3. Carrier plates 5 are fixedly connected to the two conveying chains of the chain conveyor 1. Toothed rings 6 are movably installed on the carrier plates 5. Two L-shaped expansion plates 7 are movably installed inside the carrier plates 5. Clamping rods 8 are fixedly installed on one side of the top of the two L-shaped expansion plates 7 respectively.
[0025] like Figures 2-3 As shown, a toothed plate 9 is fixedly installed on one side of the top of the chain conveyor 1. The teeth of the toothed plate 9 face the toothed ring 6. With the help of the toothed plate 9, the pipe can be rotated in conjunction with the toothed ring 6. A second guide rail 10 is fixedly installed at one end of the first guide rail 4. The second guide rail 10 is arc-shaped and its longitudinal width gradually decreases from one end to the other. Through the arrangement of the first guide rail 4 and the second guide rail 10, the two L-shaped expansion plates 7 can be guided and moved, and the two L-shaped expansion plates 7 can be inserted and installed on one side of the first guide rail 4 for horizontal displacement.
[0026] like Figures 3-4As shown, two grooves 11 are formed inside the carrier plate 5. A baffle 12 is fixedly installed at the bottom of the carrier plate 5 near the grooves 11. A shaft seat 13 is fixedly installed at the top of the carrier plate 5. The curved plate chains corresponding to one side of the chain conveyor 1 are fixedly installed on both sides of the carrier plate 5, and the carrier plate 5 is positioned above the first guide rail 4. The toothed ring 6 is magnetic, and a connecting ring 14 is fixedly installed at the bottom of the toothed ring 6. The connecting ring 14 is inserted into the shaft seat 13. The carrier plate 5 is installed between the two curved plate chains in the chain conveyor 1, and the carrier plate 5 can rotate cyclically, thereby causing the toothed ring 6 to mesh with one side of the toothed plate 9, thus making the toothed ring 9 mesh with the toothed plate 9. Ring 6 rotates automatically, and the longitudinal part of L-shaped expansion plate 7 is inserted into the corresponding slide groove 11. A compression spring 15 is movably connected between L-shaped expansion plate 7 and baffle 12. Multiple rubber wheels 16 are rotatably installed on one side of clamping rod 8. After the two L-shaped expansion plates 7 move to the side of the first guide rail 4 with the carrier plate 5, the first guide rail 4 can be used to squeeze and move the two L-shaped expansion plates 7 to one side respectively, thereby causing the two L-shaped expansion plates 7 to drive the clamping rod 8 at the top to move to one side respectively, thereby positioning the pipe placed on the toothed ring 6, which is conducive to cooperating with the spraying mechanism 2 to spray paint the outer surface of the pipe.
[0027] It should be noted that this utility model is a surface anti-corrosion spraying device for pipeline processing. During pipeline spraying, a robotic arm can vertically insert and install two corresponding clamping rods 8 on the outside of the gas pipeline, placing the bottom of the pipeline on the toothed ring 6. The magnetic properties of the toothed ring 6 temporarily position the gas pipeline. Then, the two curved chains of the chain conveyor 1 transport the carrier plate 5, causing the carrier plate 5 to move synchronously with the two L-shaped expansion plates 7, the clamping rods 8, and the toothed ring 6. When the carrier plate 5 moves the two L-shaped expansion plates 7 along the second guide rail 10 to the side of the first guide rail 4, the gradually increasing width of the second guide rail 10 towards the first guide rail 4 causes the two L-shaped expansion plates 7 to move to one side. This causes the L-shaped expansion plates 7 to compress the compression spring 15 towards the corresponding baffle 12. Thus, the two L-shaped expansion plates 7 respectively drive the top clamping rods 8 towards... The pipe moves inside, causing multiple rubber wheels 16 on one side of the clamping rod 8 to press against the inside of the pipe, thus limiting the pipe's position. When the carrier plate 5 moves the toothed ring 6 to the side of the toothed plate 9, the toothed ring 6 engages with the teeth on one side of the toothed plate 9, thereby driving the toothed ring 6 to rotate. The toothed ring 6 then drives the pipe to rotate, which can cooperate with the spraying mechanism 2 to spray the outer surface of the pipe. After the outer surface of the pipe is sprayed, the carrier plate 5 drives the two L-shaped expansion plates 7 to disengage from the first guide rail 4. The two L-shaped expansion plates 7 are reset and moved by the extension and rebound of the compression spring 15, which in turn causes the two L-shaped expansion plates 7 to drive the clamping rod 8 to move relative to each other, causing the rubber wheels 16 on one side of the clamping rod 8 to disengage from the inner wall of the pipe. The sprayed pipe can then be removed using the unloading robotic arm. In addition, the overall structure of this application can be extended to add a drying mechanism to dry the pipe before removal.
[0028] 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 embodiments and descriptions in the specification 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 the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.
Claims
1. A surface anti-corrosion spraying device for pipe processing, characterized in that: The system includes a chain conveyor (1) and a spraying mechanism (2). Multiple support plates (3) are fixedly connected to both sides of the chain conveyor (1). A first guide rail (4) is fixedly connected to the multiple support plates (3). Carrier plates (5) are fixedly connected to the two conveying chains of the chain conveyor (1). Toothed rings (6) are movably installed on the carrier plates (5). Two L-shaped expansion plates (7) are movably installed inside the carrier plates (5). Clamping rods (8) are fixedly installed on one side of the top of the two L-shaped expansion plates (7).
2. The surface anti-corrosion spraying device for pipe processing according to claim 1, characterized in that: A toothed plate (9) is fixedly installed on one side of the top of the chain conveyor (1), with the teeth of the toothed plate (9) facing the toothed ring (6).
3. The surface anti-corrosion spraying device for pipe processing according to claim 1, characterized in that: The first guide rail (4) has a second guide rail (10) fixedly installed at one end. The second guide rail (10) is arc-shaped and its longitudinal width gradually decreases from one end to the other.
4. The surface anti-corrosion spraying device for pipe processing according to claim 3, characterized in that: Two grooves (11) are provided in the carrier plate (5). A baffle (12) is fixedly installed at the bottom of the carrier plate (5) near the groove (11). A shaft seat (13) is fixedly installed at the top of the carrier plate (5). The curved plate chains corresponding to one side of the chain conveyor (1) are fixedly installed on both sides of the carrier plate (5). The carrier plate (5) is located above the first guide rail (4).
5. The surface anti-corrosion spraying device for pipe processing according to claim 4, characterized in that: The toothed ring (6) is magnetic, and a connecting ring (14) is fixedly installed at the bottom of the toothed ring (6). The connecting ring (14) is inserted into the bearing seat (13).
6. The surface anti-corrosion spraying device for pipe processing according to claim 5, characterized in that: The longitudinal portion of the L-shaped expansion plate (7) is inserted into the corresponding slide groove (11). A compression spring (15) is movably connected between the L-shaped expansion plate (7) and the baffle (12). Multiple rubber wheels (16) are rotatably installed on one side of the clamping rod (8).
Citation Information
Patent Citations
Paint spraying mechanism for pipeline machining
CN221832655U