A pipe welding anticorrosion coating device

Abstract

The utility model discloses a kind of welded pipe anticorrosion coating coating devices, it is related to welded pipe anticorrosion treatment technical field, including paint tank and the mobile support mechanism being located at the bottom of paint tank, mobile support mechanism includes mounting bracket, mounting bracket is fixedly arranged at the bottom of paint tank, and two symmetrical support rods are rotatably arranged inside, the rod wall of two support rods is fixedly covered with support plate, rotating groove is formed in the lower end of support plate, rotating shaft is rotatably arranged in rotating groove, and the axle wall both ends of rotating shaft are fixedly equipped with moving wheel, the outer wall of support plate is fixedly equipped with control motor, the output shaft end of control motor is fixedly connected with rotating shaft, the outer wall of paint tank is fixedly equipped with suction pump, and suction tube is communicated between the feed end of suction pump and paint tank. The utility model can not be assisted by manual operation to make device autonomous move to welded pipe inside, and anticorrosion coating is evenly coated in pipeline inner wall, improve the use effect and operation convenience of device.

Description

Technical Field

[0001] This utility model relates to the field of welded pipe anti-corrosion treatment technology, specifically to a welded pipe anti-corrosion coating application device. Background Technology

[0002] To ensure the strength and stability of welded pipes during use, an anti-corrosion coating needs to be applied to the pipe wall. For example, patent document CN219683107U discloses a welding pipe anti-corrosion coating application device. This device compensates for the thickness of the anti-corrosion coating in the weld area, so that the thickness of the anti-corrosion coating in the weld area meets the requirements. Compared with the method of thickening the anti-corrosion coating of the entire welded pipe, it reduces the consumption of anti-corrosion material for the entire pipe body, thereby reducing the cost of coating the welding pipe anti-corrosion coating.

[0003] However, the above-mentioned device can only treat the inner wall of the welded pipe with anti-corrosion coating. When performing the inner wall treatment, the operator still needs to enter the pipe and use the coating equipment to apply the anti-corrosion coating. Utility Model Content

[0004] In view of the problems existing in the above-mentioned welding pipe anti-corrosion coating device, this utility model is proposed.

[0005] Therefore, the purpose of this utility model is to provide a welding pipe anti-corrosion coating application device, which solves the problem that the existing welding pipe anti-corrosion coating application requires manual operation by carrying equipment into the inner wall of the pipe, which is quite cumbersome.

[0006] To achieve the above objectives, this utility model provides the following technical solution: A coating device for anti-corrosion coating of welded pipe includes a coating tank and a movable support mechanism located at the bottom of the coating tank. The movable support mechanism includes a mounting frame, which is fixedly located at the bottom of the coating tank and has two symmetrically arranged support rods rotatably mounted inside. Support plates are fixedly fitted on the walls of the two support rods. A rotating groove is opened at the lower end of the support plate, and a rotating shaft is rotatably mounted in the rotating groove. Moving wheels are fixedly mounted at both ends of the shaft wall of the rotating shaft. A control motor is fixedly mounted on the outer wall of the support plate, and the output shaft end of the control motor is fixedly connected to the rotating shaft. A suction pump is fixedly installed on the outer wall of the paint tank. A suction pipe is connected between the inlet end of the suction pump and the paint tank. A connecting pipe is connected to the outlet end of the suction pump. A spray pipe is rotatably sleeved on the outer wall of the connecting pipe. A fan-shaped nozzle is connected to the opening of the spray pipe.

[0007] Preferably, a rotary motor is fixedly installed at the lower end of the outer wall of the paint tank, a drive spur gear is fixedly installed at the end of the output shaft of the rotary motor, and a transmission spur gear is fixedly sleeved on the wall of the spray pipe, with the drive spur gear and the transmission spur gear being configured to cooperate.

[0008] Preferably, the walls of both support rods are fixedly fitted with mating gears, and the two mating gears are meshed together. A rotating plate is fixedly sleeved at the end of the support rod, and a positioning rod is slidably inserted through the side of the rotating plate. Springs are sleeved on the rod walls of the two positioning rods, and the two ends of the springs are fixedly connected to the positioning rods and the rotating plate, respectively. Multiple positioning holes are opened on the outer wall of the mounting frame to cooperate with the positioning rods.

[0009] Preferably, the plurality of positioning holes are evenly distributed axially.

[0010] Furthermore, the end of the positioning rod is fixedly fitted with an anti-slip rubber sleeve.

[0011] Preferably, the top of the paint tank is provided with a feeding port, the inner wall of the feeding port is sealed with a sealing plug, and an anti-detachment rope is fixed between the sealing plug and the paint tank.

[0012] Preferably, the mounting bracket is an inverted U-shaped mounting bracket.

[0013] The technical effects and advantages provided by this utility model in the above technical solution are as follows: 1. This utility model, through its paint tank, mobile support mechanism, suction pump, suction pipe, connecting pipe, spray pipe, fan-shaped nozzle, rotary motor, drive gear and transmission gear, enables the device to move autonomously into the welded pipe without manual operation, and uniformly coat the anti-corrosion coating on the inner wall of the pipe, thereby improving the device's performance and ease of operation.

[0014] 2. This utility model, through its movable support mechanism, gears, rotating plate, positioning rod, and spring, can adjust the overall support height of the movable support mechanism, so that the rotation centerline of the nozzle coincides with the axis of the welded pipe. This avoids uneven coating thickness caused by different distances between the fan-shaped nozzle and the inner wall of the welded pipe during rotation, thus improving the coating effect. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings.

[0016] Figure 1This is a three-dimensional structural diagram of the present invention; Figure 2 This is a schematic diagram of the structure of the mobile support mechanism of this utility model; Figure 3 For the present utility model Figure 2 Enlarged schematic diagram of part A.

[0017] Explanation of reference numerals in the attached figures: 1. Paint tank; 2. Mounting frame; 3. Support rod; 4. Support plate; 5. Rotating shaft; 6. Casters; 7. Control motor; 8. Suction pump; 9. Suction pipe; 10. Connecting pipe; 11. Spray pipe; 12. Fan-shaped nozzle; 13. Rotary motor; 14. Drive gear; 15. Transmission gear; 16. Matching gear; 17. Rotating plate; 18. Positioning rod; 19. Spring; 20. Positioning hole; 21. Anti-slip rubber sleeve; 22. Sealing plug; 23. Anti-detachment rope. Detailed Implementation

[0018] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings.

[0019] This utility model discloses a device for applying an anti-corrosion coating to welded pipes.

[0020] This utility model provides, for example Figure 1-3 The illustrated anti-corrosion coating device for welded pipes includes a coating tank 1 and a movable support mechanism located at the bottom of the coating tank 1. The top of the coating tank 1 has a feeding port, and the inner wall of the feeding port is sealed with a sealing plug 22. An anti-detachment rope 23 is fixed between the sealing plug 22 and the coating tank 1. The movable support mechanism includes a mounting frame 2, which is an inverted U-shaped mounting frame. The mounting frame 2 is fixedly located at the bottom of the coating tank 1, and two symmetrically arranged support rods 3 are rotatably arranged inside. Support plates 4 are fixedly sleeved on the walls of the two support rods 3. A rotating groove is opened at the lower end of the support plate 4, and a rotating shaft 5 is rotatably arranged in the rotating groove. Moving wheels 6 are fixedly arranged at both ends of the shaft wall of the rotating shaft 5. A control motor 7 is fixedly arranged on the outer wall of the support plate 4, and the output shaft end of the control motor 7 is fixedly connected to the rotating shaft 5. A suction pump 8 is fixedly installed on the outer wall of the paint tank 1. A suction pipe 9 is connected between the inlet end of the suction pump 8 and the paint tank 1. A connecting pipe 10 is connected to the outlet end of the suction pump 8. A spray pipe 11 is rotatably sleeved on the outer wall of the connecting pipe 10. A fan-shaped nozzle 12 is connected to the nozzle opening of the spray pipe 11. A rotary motor 13 is fixedly installed at the lower end of the outer wall of the paint tank 1. A drive spur gear 14 is fixedly installed at the end of the output shaft of the rotary motor 13. A transmission spur gear 15 is fixedly sleeved on the pipe wall of the spray pipe 11. The drive spur gear 14 and the transmission spur gear 15 are configured to cooperate.

[0021] To avoid uneven coating thickness caused by varying distances between the fan-shaped nozzle and the inner wall of the welded pipe during rotation, such as... Figure 1-3 As shown, the walls of both support rods 3 are fixedly fitted with mating gears 16, and the two mating gears 16 are meshed together. A rotating plate 17 is fixedly sleeved at the end of the support rod 3. A positioning rod 18 is slidably inserted through the side of the rotating plate 17. Springs 19 are sleeved on the rod walls of the two positioning rods 18. The two ends of the springs 19 are fixedly connected to the positioning rods 18 and the rotating plate 17 respectively. An anti-slip rubber sleeve 21 is fixedly sleeved at the end of the positioning rod 18. Multiple positioning holes 20 are opened on the outer wall of the mounting bracket 2 to cooperate with the positioning rods 18. The multiple positioning holes 20 are evenly distributed axially.

[0022] Working principle: Before using the device, first open the sealing plug 22, inject anti-corrosion coating through the feeding port at the top of the coating tank 1, and then replace the sealing plug 22. The anti-detachment rope 23 can prevent the sealing plug 22 from being lost. According to the inner diameter of the welded pipe to be coated, adjust the support height of the moving support mechanism: pull the anti-slip rubber sleeve 21 at the end of the positioning rod 18 to make the positioning rod 18 disengage from the positioning hole 20 on the outer wall of the mounting frame 2. The spring 19 is stretched, and the rotating plate 17 is rotated. The rotating plate 17 drives the support rod 3 to rotate. The two support rods 3 rotate synchronously in opposite directions through the meshing of the gear 16, thereby driving the support plate 4 and the moving wheel 6 to adjust the height until the rotation center line of the nozzle 11 coincides with the axis of the welded pipe. Release the positioning rod 18, the spring 19 returns to its original position and pushes the positioning rod 18 into the corresponding positioning hole 20 to complete the fixation of the support height. Start the control motor 7. The output shaft of the control motor 7 drives the rotating shaft 5 to rotate. The rotating shaft 5 drives the moving wheel 6 to rotate, so that the whole device moves autonomously into the welded pipe. Start the suction pump 8 and the rotary motor 13. The suction pump 8 draws anti-corrosion coating from the coating tank 1 through the suction pipe 9 and delivers it to the spray pipe 11 through the connecting pipe 10. Finally, it is sprayed out from the fan-shaped nozzle 12. At the same time, the output shaft of the rotary motor 13 drives the drive gear 14 to rotate. The drive gear 14 meshes with the transmission gear 15 on the pipe wall of the spray pipe 11, causing the spray pipe 11 and the fan-shaped nozzle 12 to rotate around the connecting pipe 10, so that the sprayed anti-corrosion coating evenly covers the inner wall of the welded pipe. As the device moves slowly along the axial direction of the welded pipe under the drive of the control motor 7, the anti-corrosion coating is evenly applied to the entire length of the inner wall of the welded pipe.

[0023] The foregoing description only illustrates certain exemplary embodiments of the present invention. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A coating device for anti-corrosion coating of welded pipes, comprising a coating tank (1) and a movable support mechanism disposed at the bottom of the coating tank (1), characterized in that, The mobile support mechanism includes a mounting frame (2), which is fixedly installed at the bottom of the paint box (1) and has two symmetrically arranged support rods (3) rotatably mounted inside. The walls of the two support rods (3) are fixedly fitted with support plates (4). The lower end of the support plate (4) is provided with a rotating groove, and a rotating shaft (5) is rotatably mounted in the rotating groove. Both ends of the shaft wall of the rotating shaft (5) are fixedly provided with moving wheels (6). The outer wall of the support plate (4) is fixedly provided with a control motor (7), and the output shaft end of the control motor (7) is fixedly connected to the rotating shaft (5). A suction pump (8) is fixedly installed on the outer wall of the paint tank (1). A suction pipe (9) is connected between the inlet end of the suction pump (8) and the paint tank (1). A connecting pipe (10) is connected to the outlet end of the suction pump (8). A spray pipe (11) is rotatably sleeved on the outer wall of the connecting pipe (10). A fan-shaped nozzle (12) is connected to the opening of the spray pipe (11).

2. The anti-corrosion coating device for welded pipes according to claim 1, characterized in that, A rotary motor (13) is fixedly installed at the lower end of the outer wall of the paint tank (1). A drive spur gear (14) is fixedly installed at the end of the output shaft of the rotary motor (13). A transmission spur gear (15) is fixedly sleeved on the pipe wall of the spray pipe (11). The drive spur gear (14) and the transmission spur gear (15) are configured to cooperate.

3. The anti-corrosion coating device for welded pipes according to claim 1, characterized in that, Both of the support rods (3) are fixedly fitted with mating gears (16) on their walls, and the two mating gears (16) are meshed together. The end of the support rod (3) is fixedly fitted with a rotating plate (17), and the side of the rotating plate (17) is slidably fitted with a positioning rod (18). The two positioning rods (18) are fitted with springs (19), and the two ends of the springs (19) are fixedly connected to the positioning rods (18) and the rotating plate (17) respectively. The outer wall of the mounting bracket (2) is provided with a plurality of positioning holes (20) that cooperate with the positioning rods (18) for insertion.

4. The anti-corrosion coating device for welded pipes according to claim 3, characterized in that, The multiple positioning holes (20) are evenly distributed axially.

5. The anti-corrosion coating device for welded pipes according to claim 4, characterized in that, The end of the positioning rod (18) is fixedly fitted with an anti-slip rubber sleeve (21).

6. The anti-corrosion coating device for welded pipes according to claim 1, characterized in that, The top of the paint tank (1) is provided with a feeding port, and the inner wall of the feeding port is sealed with a sealing plug (22). An anti-detachment rope (23) is fixed between the sealing plug (22) and the paint tank (1).

7. The anti-corrosion coating device for welded pipes according to claim 1, characterized in that, The mounting bracket (2) is an inverted U-shaped mounting bracket.

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