Steel pipe rust removal and paint spraying device

Abstract

The utility model relates to the technical field of steel pipe processing, and discloses a steel pipe derusting and paint spraying device which comprises a bearing base, the top of the bearing base is sequentially provided with a derusting assembly, an air drying assembly and a spraying assembly, and the derusting assembly comprises a derusting ring pipe. According to the steel pipe rust removal and paint spraying device, through the rust removal assembly and the spraying assembly, high-pressure rust removal liquid in a rust removal ring pipe is output from a rust removal spray head through a branch pipe under the pressure effect, the high-pressure rust removal liquid output by the rust removal spray head peels rust particles on the surface of a steel pipe, and then the follow-up assembly drives the steel pipe subjected to rust removal to move; protective paint and constant-pressure air in the paint inlet ring pipe and the air inlet ring pipe are injected into the paint spraying nozzle through the paint supply branch pipe and the air supply branch pipe correspondingly, the constant-pressure air in the paint spraying nozzle drives the protective paint to be sprayed to the surface of the steel pipe in a fan-shaped liquid flow state, and the interval time of steel pipe rust removal operation and spraying operation is shortened. And the spraying effect of paint on the surface of the steel pipe is improved.

Description

Technical Field

[0001] This utility model relates to the field of steel pipe processing technology, specifically a steel pipe rust removal and painting device. Background Technology

[0002] Steel pipe is a type of steel with a hollow cross-section and a length much greater than its diameter or circumference. Based on cross-sectional shape, it is classified into circular, square, rectangular, and irregularly shaped steel pipes. Steel pipes are used not only for transporting fluids and powdery solids, exchanging heat energy, and manufacturing mechanical parts and containers, but also for manufacturing building structural frames, columns, and mechanical supports to reduce weight and save metal. To reduce the rate of rust corrosion on the surface of steel pipes, protective paint needs to be sprayed onto them. Before spraying the protective paint, the surface of the steel pipe needs to be derusted. However, because steel pipes need to be transported during the derusting and painting processes, dust particles easily adhere to the surface of the steel pipe during transport, reducing the effectiveness of the paint spraying.

[0003] Based on this, the present invention designs a steel pipe rust removal and painting device to solve the above problems. Utility Model Content

[0004] (a) Technical problems to be solved

[0005] To address the shortcomings of existing technologies, this utility model provides a steel pipe rust removal and painting device, which solves the problems mentioned in the background art.

[0006] (II) Technical Solution

[0007] To achieve the above objectives, this utility model provides the following technical solution: a steel pipe rust removal and painting device, comprising a supporting base, a rust removal component, a drying component, and a painting component sequentially arranged on the top of the supporting base. The rust removal component includes a rust removal ring pipe, the surface of which is connected to multiple sets of branch pipes, and each set of branch pipes has a rust removal nozzle screwed onto its output end. The drying component includes a drying ring pipe, the surface of which is connected to multiple sets of drying branch pipes. The rust removal component includes a paint inlet ring pipe and an air inlet ring pipe, the surface of which is connected to multiple sets of paint supply branch pipes, and the surface of the air inlet ring pipe is connected to multiple sets of air supply branch pipes. Each set of paint supply branch pipes and its corresponding air supply branch pipe are connected to a painting nozzle. The front of the rust removal ring pipe, the drying ring pipe, the paint inlet ring pipe, and the air inlet ring pipe are all connected to a material supply pipe. The outer surface of the supporting base is provided with multiple sets of follow-up components.

[0008] Preferably, each set of follower components includes an overhead bracket, and each set of overhead brackets has bearing holes on its outer side. Each set of bearing holes has an interference fit bearing installed on its inner wall. Follower shafts are interference fit between the rotating ends of the two sets of opposite deflection bearings. Each set of follower shafts has two sets of conical support wheels screwed onto its outer surface. A feed motor is fixedly installed on the back of each set of overhead brackets. The output end of each set of feed motors is connected to the input end of the corresponding follower shaft.

[0009] Preferably, each set of tapered support wheels has a drive ring at its outer end, and the inner wall of each set of drive rings is screwed onto the outer surface of the corresponding follower shaft.

[0010] Preferably, each set of follower shafts has two sets of limiting nuts screwed onto its outer surface, and the outer end of each set of limiting nuts abuts against the inner end of the corresponding conical support wheel.

[0011] Preferably, each set of overhead supports has an installation bend plate on its outer side, and each set of installation bend plates has expansion pin holes at its bottom.

[0012] Preferably, the outer surface of each of the branch pipes, air drying branch pipes, paint supply branch pipes, air supply branch pipes, material supply pipes, bearing bases, rust removal ring pipes, air drying ring pipes, paint inlet ring pipes, and air inlet ring pipes is provided with an anti-corrosion coating.

[0013] (III) Beneficial Effects

[0014] Compared with the prior art, this utility model provides a steel pipe rust removal and painting device, which has the following beneficial effects:

[0015] 1. This steel pipe rust removal and painting device, through a rust removal component and a spraying component, allows high-pressure rust removal fluid in the rust removal ring pipe to be output from the rust removal nozzle through a branch pipe under pressure. The high-pressure rust removal fluid output from the rust removal nozzle peels off the rust particles on the surface of the steel pipe. Then, the follow-up component moves the rust-removed steel pipe. The protective paint and constant-pressure air in the paint inlet ring pipe and air inlet ring pipe are injected into the spraying nozzle through the paint supply branch pipe and air supply branch pipe, respectively. The constant-pressure air in the spraying nozzle drives the protective paint to be sprayed onto the surface of the steel pipe in a fan-shaped liquid flow state, which shortens the interval between the steel pipe rust removal operation and the spraying operation and improves the spraying effect of the paint on the surface of the steel pipe.

[0016] 2. This steel pipe rust removal and painting device, through the air drying component, allows the external air drying pipeline to inject high-pressure air into the air drying ring pipe via the feed pipe. Under pressure, the high-pressure air in the air drying ring pipe is output from the air drying branch pipe. The airflow output from the air drying branch pipe dries and peels off the residual high-pressure rust removal liquid and dirt on the surface of the steel pipe, effectively reducing the impact of residual rust removal liquid on the painting effect, greatly improving the cleanliness of the steel pipe before painting, and thus enhancing the practicality of the device.

[0017] 3. This steel pipe rust removal and painting device, through a follow-up component, allows personnel to determine the spraying height based on the outer diameter of the steel pipe. After the spraying height is determined, the conical support wheel is rotated. The conical support wheel moves along the follow-up shaft with the help of the thread. The conical support wheel stops after rotating to the position corresponding to the spraying height. This effectively improves the adaptability of the device to steel pipes of different diameters, greatly enhances the convenience of adjusting the working center of the device, and thus enhances the applicability of the device. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of this utility model;

[0019] Figure 2 This is a front view of the structure of this utility model;

[0020] Figure 3 This is a schematic diagram of the follower component of the present invention.

[0021] In the diagram: 1. Support base; 2. Rust removal assembly; 3. Air drying assembly; 4. Spraying assembly; 5. Rust removal ring pipe; 6. Branch pipe; 7. Rust removal nozzle; 8. Air drying ring pipe; 9. Air drying branch pipe; 10. Paint inlet ring pipe; 11. Air inlet ring pipe; 12. Paint supply branch pipe; 13. Air supply branch pipe; 14. Spray nozzle; 15. Material supply pipe; 16. Follower assembly; 17. Overhead support; 18. Deflection bearing; 19. Follower shaft; 20. Conical support wheel; 21. Drive ring; 22. Limit nut; 23. Mounting bend plate; 24. Feed motor. Detailed Implementation

[0022] 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.

[0023] Please see Figure 1-3This utility model provides a technical solution: a steel pipe rust removal and painting device, including a support base 1. A rust removal component 2, a drying component 3, and a painting component 4 are sequentially arranged on the top of the support base 1. Through the rust removal component 2 and the painting component 4, the high-pressure rust removal liquid in the rust removal ring pipe 5 is output from the rust removal nozzle 7 through the branch pipe 6 under pressure. The high-pressure rust removal liquid output from the rust removal nozzle 7 peels off the rust particles on the surface of the steel pipe. Then, the follower component 16 moves the rust-removed steel pipe, and the paint inlet ring pipe 10... The protective paint and constant-pressure air in the intake ring pipe 11 are injected into the paint supply branch pipe 12 and the air supply branch pipe 13, respectively, into the paint spray nozzle 14. The constant-pressure air in the paint spray nozzle 14 drives the protective paint to be sprayed onto the steel pipe surface in a fan-shaped liquid flow, shortening the interval between the steel pipe rust removal operation and the spraying operation, and improving the paint spraying effect on the steel pipe surface. Through the air drying component 3, the external air drying pipeline injects high-pressure air into the air drying ring pipe 8 through the material supply pipe 15. The high-pressure air in the air drying ring pipe 8 is subjected to pressure. The airflow output from the drying branch pipe 9 dries and peels off the residual high-pressure rust remover and dirt on the steel pipe surface, effectively reducing the impact of residual rust remover on the painting effect and greatly improving the cleanliness of the steel pipe before painting, thereby enhancing the practicality of the device. The rust removal component 2 includes a rust removal ring pipe 5, the surface of which is connected to multiple sets of branch pipes 6, and each set of branch pipes 6 has a rust removal nozzle 7 screwed onto its output end. The drying component 3 includes a drying ring pipe 8, the surface of which... The rust removal component 2 includes a paint inlet ring pipe 10 and an air inlet ring pipe 11. The surface of the paint inlet ring pipe 10 is connected to a number of paint supply branch pipes 12, and the surface of the air inlet ring pipe 11 is connected to a number of air supply branch pipes 13. Each set of paint supply branch pipes 12 and the corresponding air supply branch pipe 13 are connected to a paint spray nozzle 14. The front of the rust removal ring pipe 5, the air drying ring pipe 8, the paint inlet ring pipe 10 and the air inlet ring pipe 11 are all connected to a material supply pipe 15. The outer surface of the bearing base 1 is provided with a number of follow-up components 16.

[0024] In this invention, each set of follower components 16 includes an overhead support 17. Each set of overhead support 17 has bearing holes on its outer side. Each set of bearing holes has an interference fit bearing 18 on its inner wall. Follower shafts 19 are interference fit between the rotating ends of two sets of opposing interference bearings 18. Two sets of conical support wheels 20 are screwed onto the outer surface of each set of follower shafts 19. A feed motor 24 is fixedly installed on the back of each set of rear overhead support 17. The output end of each set of feed motors 24 is connected to the input end of the corresponding follower shaft 19. Through the follower components 16, the operator can determine the spraying height according to the outer diameter of the steel pipe. After the spraying height is determined, the conical support wheels 20 are rotated. The conical support wheels 20 move along the follower shaft 19 under the engagement of the threads. The conical support wheels 20 stop after rotating to the position corresponding to the spraying height. This effectively improves the adaptability of the device to steel pipes of different diameters and greatly enhances the convenience of adjusting the working center of the device, thereby enhancing the applicability of the device.

[0025] In this invention, in order to improve the convenience of driving the conical support wheel 20 to move along the follower shaft 19, a drive ring 21 for providing a locking position during its movement is provided at the outer end of each set of conical support wheels 20. The inner wall of each set of drive rings 21 is screwed to the outer surface of the corresponding follower shaft 19, thereby improving the convenience of driving the conical support wheel 20 to move along the follower shaft 19.

[0026] In this invention, in order to improve the stability of the device during operation, two sets of limiting nuts 22 for transmitting preload to the conical support wheel 20 are screwed onto the outer surface of each set of follower shafts 19, which reduces the probability of uncontrollable movement of the conical support wheel 20. The outer end of each set of limiting nuts 22 is pressed against the inner end of the corresponding conical support wheel 20, thereby improving the stability of the device during operation.

[0027] In this utility model, in order to improve the convenience of the device installation process, each set of overhead support 17 is provided with an installation bending plate 23 on its outer side. Each set of installation bending plates 23 is provided with expansion bolt holes at its bottom. Through the expansion bolt holes at the bottom of the installation bending plates 23, the device is fixed to the set position with the cooperation of expansion bolts, thereby improving the convenience of the device installation process.

[0028] In this utility model, in order to extend the effective service life of the device, an anti-corrosion coating is provided on the outer surface of each group of branch pipes 6, drying branch pipes 9, paint supply branch pipes 12, air supply branch pipes 13, material supply pipes 15, bearing base 1, rust removal ring pipes 5, drying ring pipes 8, paint inlet ring pipes 10 and air inlet ring pipes 11 to reduce their rusting rate, thereby extending the effective service life of the device.

[0029] In use, first, fix the device in the set position. After the device is installed, determine the spraying height according to the outer diameter of the steel pipe. After the spraying height is determined, rotate the conical support wheel 20. The conical support wheel 20 moves along the follower shaft 19 under the engagement of the thread. The conical support wheel 20 stops after rotating to the position corresponding to the spraying height. Then, place the steel pipe between the two sets of conical support wheels 20. Then, the feed motor 24 drives the follower shaft 19 to rotate along the deflection bearing 18. The follower shaft 19 drives the steel pipe to move through the conical support wheel 20. During this process, the external rust removal pipeline inputs high-pressure rust removal fluid into the rust removal ring pipe 5 through the feed pipe 15. Under pressure, the high-pressure rust removal fluid in the rust removal ring pipe 5 is output from the rust removal nozzle 7 through the branch pipe 6. The high-pressure rust removal fluid output from the rust removal nozzle 7 peels off the rust particles on the surface of the steel pipe. After the rust removal process, the steel pipe moves under the drive of the follower component 16. During this process, the external drying pipeline injects high-pressure air into the drying ring pipe 8 through the feed pipe 15. The high-pressure air in the drying ring pipe 8 is output from the drying branch pipe 9 under pressure. The airflow output from the drying branch pipe 9 dries and peels off the residual high-pressure rust removal liquid and dirt on the surface of the steel pipe. After the drying process, the steel pipe moves under the drive of the follower component 16. During this process, the external paint supply pipeline and air supply pipeline inject protective paint and constant pressure air into the paint inlet ring pipe 10 and air inlet ring pipe 11 through the feed pipe 15, respectively. The protective paint and constant pressure air in the paint inlet ring pipe 10 and air inlet ring pipe 11 are injected into the paint spray nozzle 14 through the paint supply branch pipe 12 and air supply branch pipe 13, respectively. The constant pressure air in the paint spray nozzle 14 drives the protective paint to be sprayed onto the surface of the steel pipe in a fan-shaped liquid flow state.

[0030] 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 steel pipe rust removal and paint spraying device comprising a bearing base (1), characterized in that: The top of the bearing base (1) is sequentially provided with a rust removal assembly (2), a air drying assembly (3) and a spraying assembly (4), the rust removal assembly (2) comprises a rust removal ring pipe (5), a plurality of branch pipes (6) are communicated with the surface of the rust removal ring pipe (5), the output end of each group of branch pipes (6) is screw-mounted with a rust removal nozzle (7), the air drying assembly (3) comprises an air drying ring pipe (8), a plurality of air drying branch pipes (9) are communicated with the surface of the air drying ring pipe (8), the rust removal assembly (2) comprises an ink inlet ring pipe (10) and an air inlet ring pipe (11), a plurality of ink supply branch pipes (12) are communicated with the surface of the ink inlet ring pipe (10), a plurality of air supply branch pipes (13) are communicated with the surface of the air inlet ring pipe (11), the ink supply branch pipe (12) and the corresponding air supply branch pipe (13) are communicated with a paint spraying nozzle (14), the front of the rust removal ring pipe (5), the air drying ring pipe (8), the ink inlet ring pipe (10) and the air inlet ring pipe (11) is communicated with a feeding pipe (15), and the outer surface of the bearing base (1) is provided with a plurality of follow-up assemblies (16).

2. The steel pipe rust removing and painting device according to claim 1, characterized in that: Each group of follow-up assemblies (16) comprises an overhead support (17), a bearing hole is formed in the outer side surface of each group of overhead supports (17), a deflection bearing (18) is installed on the inner wall of each group of bearing holes in interference fit, a follow-up shaft (19) is installed between the rotating ends of the two groups of deflection bearings (18) in interference fit, two groups of conical supporting wheels (20) are screw-mounted on the outer surface of each group of follow-up shafts (19), a feeding motor (24) is fixedly installed on the back surface of each group of overhead supports (17), and the output end of each group of feeding motors (24) is in transmission connection with the input end of the corresponding follow-up shaft (19).

3. A steel pipe rust removing and painting device according to claim 2, characterized in that: The outer end of each group of conical supporting wheels (20) is provided with a driving ring (21), and the inner wall of each group of driving rings (21) is screw-mounted with the outer surface of the corresponding follow-up shaft (19).

4. The steel pipe rust removing and painting device according to claim 2, characterized in that: The outer surface of each group of follow-up shafts (19) is screw-mounted with two groups of limiting nuts (22), and the outer end of each group of limiting nuts (22) is abuttingly connected with the inner end of the corresponding conical supporting wheel (20).

5. The apparatus for painting and rust removal of a steel pipe according to claim 2, wherein: The outer side surface of each group of overhead supports (17) is provided with a mounting bent plate (23), and the bottom of each group of mounting bent plates (23) is provided with a dowel hole.

6. A paint spraying device for rust removal of a steel pipe according to claim 1, wherein: The outer surface of each group of branch pipes (6), air drying branch pipes (9), ink supply branch pipes (12), air supply branch pipes (13), feeding pipes (15), bearing bases (1), rust removal ring pipes (5), air drying ring pipes (8), ink inlet ring pipes (10) and air inlet ring pipes (11) is provided with a corrosion-resistant coating.

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