An epoxy powder coating anti-corrosion device for the outer wall of steel pipes

Abstract

This utility model discloses an epoxy powder coating anti-corrosion device for the outer wall of steel pipes, belonging to the field of steel pipe coating technology. It includes a coating assembly comprising a coating pipe with conveying pipes connected to both ends, a material collection trough integrally formed at the bottom of the coating pipe, and a spray gun fixedly connected to the top of the coating pipe; an adjusting assembly, a pressing assembly, and a conveying assembly. Two sets of adjusting assemblies are respectively connected to the conveying pipes, and the upper and lower displacement ends of the adjusting assemblies are respectively connected to the pressing assembly and the conveying assembly. The pressing assembly and the conveying assembly are used for the self-rotating conveying of the steel pipe. Through the cooperation of the conveying assembly and the pressing assembly, the steel pipe above can be driven to rotate and be conveyed in a circular motion under the rotation of the conveying roller, achieving forward displacement while rotating itself. This, combined with the spraying of the spray gun, ensures that the outer wall of the steel pipe is uniformly coated with epoxy powder, and the auxiliary cooperation of the pressing roller improves the stability of the steel pipe conveying.

Description

Technical Field

[0001] This utility model relates to the field of steel pipe spraying technology, specifically to an epoxy powder spraying anti-corrosion device for the outer wall of steel pipes. Background Technology

[0002] Epoxy powder coating for steel pipes is a corrosion protection process that uses spraying technology to cure epoxy powder coating onto the surface of steel pipes. It is mainly used to extend the service life of steel pipelines. Using electrostatic spraying technology, the preheated outer wall of the steel pipe is evenly covered with epoxy powder coating, and a continuous protective coating is formed through curing. This process has the characteristics of high solids content, solvent-free, and environmentally friendly, and is suitable for corrosion protection of buried steel pipelines.

[0003] An investigation revealed that a Chinese utility model patent (publication number: CN215744284U) discloses an epoxy powder coating device for steel pipe corrosion protection. The device includes a powder recovery unit and a hollow cylindrical coating equipment body. Several spray guns are evenly arranged circumferentially in the center of the coating equipment body, and the body has spray gun insertion ports. The coating equipment body has an inlet plate and an outlet plate at both ends, and an internal partition. The inlet plate, outlet plate, and partition all have through holes matching the outer diameter of the steel pipe. The partition is located between the spray guns and the inlet plate, and the partition, in turn, form a circular suction chamber. The partition also has several suction holes. The powder recovery unit includes a recovery box, a vacuum pump, and a vacuum pipe. One end of the vacuum pipe is connected to the suction chamber, and the other end is connected to the recovery box via the vacuum pump. This coating equipment effectively solves the problems of low epoxy powder recovery efficiency and easy overflow.

[0004] The aforementioned patent uses circumferentially distributed spray guns to spray epoxy powder onto the outer wall of the pipe. However, too many or too few spray guns will have a certain impact on the powder coating on the outer wall of the pipe. If there are too few spray guns, the powder will make tangential contact with the edge of the pipe, resulting in incomplete coating in some areas. Conversely, if there are too many spray guns, a large amount of epoxy powder will be wasted. In addition, it can only be used for outer wall coating of pipes of the same diameter, which further reduces its applicability.

[0005] Therefore, this utility model provides an epoxy powder coating anti-corrosion device for the outer wall of steel pipes to solve the above problems. Utility Model Content

[0006] (a) Technical problems to be solved

[0007] This invention provides an epoxy powder coating anti-corrosion device for the outer wall of steel pipes, aiming to solve the problems mentioned in the background art.

[0008] (II) Technical Solution

[0009] To achieve the above objectives, this utility model provides the following technical solution: an epoxy powder coating anti-corrosion device for the outer wall of a steel pipe, comprising a coating assembly, wherein the coating assembly comprises a coating pipe, both ends of which are connected to conveying pipes, a material collection trough is integrally formed at the bottom of the coating pipe, and a spray gun is fixedly connected to the top of the coating pipe.

[0010] The system includes an adjusting component, a pressing component, and a conveying component. Two sets of the adjusting components are respectively connected to the conveying pipe, and the upper and lower displacement ends of the adjusting components are respectively connected to the pressing component and the conveying component. The pressing component and the conveying component are used for the self-rotation conveying of the steel pipe, and the adjusting component is used for adjusting the distance between the pressing component and the conveying component.

[0011] As a preferred technical solution of this application, a baffle is fixedly connected to the end of the conveying pipe away from the spraying pipe, and a barrier ring is provided between the spraying pipe and the conveying pipe. The inner diameter of the barrier ring is equal to the inner diameter of the baffle, and the inner diameter of the baffle is the maximum pipe size that the equipment can process.

[0012] As a preferred technical solution of this application, the adjustment component includes a geared motor, the output end of which is fixedly connected to a first commutator, the output ends of which are respectively connected to a second commutator via a drive shaft, the output ends of which are fixedly connected to a bidirectional lead screw, and each bidirectional lead screw is externally connected to two nut pairs, which are the displacement ends of the adjustment component.

[0013] As a preferred technical solution of this application, a support platform is fixedly connected to the outer wall of the conveying pipe, and a geared motor, a first commutator and a second commutator are connected above the support platform. The outer wall of the bidirectional lead screw is rotatably connected to the conveying pipe through a bearing.

[0014] As a preferred technical solution of this application, the clamping assembly includes a first adjusting frame, which is fixedly connected to the outer wall of the upper nut pair. Both ends of the first adjusting frame are fixedly connected to a first bracket, and the other end of the first bracket is rotatably provided with a pressure roller. The two ends of the first adjusting frame are slidably connected to a guide shaft, and the guide shaft is fixedly connected to the inner wall of the conveying pipe.

[0015] As a preferred technical solution of this application, the conveying assembly includes a second adjusting frame, which is fixedly connected to the outer wall of the lower nut pair. Both ends of the second adjusting frame are fixedly connected to a second bracket, and a conveying roller is rotatably arranged at the other end of the second bracket. A DC motor is fixedly connected to the outer wall of the second bracket, and a synchronous belt drive mechanism is connected between the output end of the DC motor and the shaft of the conveying roller. Guide shafts slide through both ends of the interior of the second adjusting frame.

[0016] (III) Beneficial Effects

[0017] The beneficial effects of this application are as follows:

[0018] 1. This utility model, through the cooperation of the conveying component and the pressing component, can drive the upper steel pipe to rotate and be conveyed in a circular motion under the rotation of the conveying roller, so as to achieve forward displacement and self-rotation at the same time. This, together with the spray gun, can ensure that the outer wall of the steel pipe is uniformly sprayed with epoxy powder, and the auxiliary cooperation of the pressing roller can improve the stability of the steel pipe conveying.

[0019] 2. This utility model, by adjusting the settings of the components, can adjust the distance between the clamping component and the conveying component, so that the clamping component and the conveying component can be adapted to clamp and position pipes of different diameters, thereby improving the adaptability of steel pipe conveying. At the same time, it can realize centering clamping and conveying of pipes of different diameters, ensuring a constant distance between the outer wall of the steel pipe and the spray gun, and further improving the uniformity of epoxy powder coating. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of the present utility model;

[0021] Figure 2 For the present utility model Figure 1 A magnified structural diagram of A in the middle;

[0022] Figure 3 This is a schematic diagram of the axial cross-sectional structure of the spray pipe of this utility model;

[0023] Figure 4 This is a side view of the structural plan of this utility model;

[0024] Figure 5 This is a partial exploded view of the adjustment component of this utility model;

[0025] Figure 6 For the present utility model Figure 5 A magnified structural diagram of B in the diagram.

[0026] In the picture:

[0027] 1. Spraying assembly; 11. Spraying pipe; 12. Conveying pipe; 13. Collection trough; 14. Baffle; 15. Spray gun; 2. Adjusting assembly; 21. Gear motor; 22. First commutator; 23. Drive shaft; 24. Second commutator; 25. Double-acting lead screw; 26. Nut pair; 27. Guide shaft; 3. Pressing assembly; 31. First adjusting frame; 32. First support; 33. Pressure roller; 4. Conveying assembly; 41. Second adjusting frame; 42. Second support; 43. Conveying roller; 44. DC motor; 45. Synchronous belt drive mechanism. Detailed Implementation

[0028] 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.

[0029] like Figure 1-6 As shown, this utility model provides an epoxy powder coating anti-corrosion device for the outer wall of a steel pipe, including a spraying component 1, which includes a spraying pipe 11, with conveying pipes 12 connected to both ends of the spraying pipe 11. A material collection trough 13 is integrally formed at the bottom of the spraying pipe 11, and a spray gun 15 is fixedly connected to the top of the spraying pipe 11. The device also includes an adjusting component 2, a clamping component 3, and a conveying component 4. Two sets of adjusting components 2 are respectively connected to the conveying pipe 12, and the upper and lower displacement ends of the adjusting components 2 are respectively connected to the clamping component 3 and the conveying component 4. The clamping component 3 and the conveying component 4 are used for the rotational conveying of the steel pipe, and the adjusting component 2 is used for adjusting the distance between the clamping component 3 and the conveying component 4. The pipe is conveyed inside the spraying pipe 11 and the conveying pipe 12, and the outer wall of the steel pipe is coated with epoxy powder by the spray gun 15 inside the spraying pipe 11. The clamping component 3 and the conveying component 4 clamp and cooperate to achieve the rotational conveying of the steel pipe, thereby ensuring that the surface of the steel pipe is fully coated with epoxy powder.

[0030] Furthermore, a baffle plate 14 is fixedly connected to the end of the conveying pipe 12 away from the spraying pipe 11. A barrier ring is provided between the spraying pipe 11 and the conveying pipe 12, and the inner diameter of the barrier ring is equal to the inner diameter of the baffle plate 14. The inner diameter of the baffle plate 14 is the maximum pipe size that the equipment can process. The barrier ring and the baffle plate 14 both play a certain blocking role and reduce the leakage of powder.

[0031] Furthermore, the adjustment assembly 2 includes a geared motor 21, the output end of which is fixedly connected to a first commutator 22. The output ends of the first commutator 22 are respectively connected to a second commutator 24 via a drive shaft 23. The output ends of the second commutator 24 are fixedly connected to a bidirectional lead screw 25, and each bidirectional lead screw 25 has two nut pairs 26 externally connected. The nut pairs 26 are the displacement ends of the adjustment assembly 2. A support platform is fixedly connected to the outer wall of the conveying pipe 12, and the geared motor 21, the first commutator 22, and the second commutator 24 are connected above the support platform. The outer wall of the bidirectional lead screw 25 is connected to a shaft. The bearing is rotatably connected to the conveying pipe 12. Driven by the geared motor 21, the first commutator 22 is driven to work. Under the rotation of the first commutator 22, the second commutator 24 is driven to rotate through the transmission shaft 23. Furthermore, the rotation of the bidirectional screw 25 drives the nut pair 26 to move up and down, thereby driving the pressing assembly 3 and the conveying assembly 4 to move upward. By adjusting the distance between the pressing assembly 3 and the conveying assembly 4, the pressing assembly 3 and the conveying assembly 4 can be adapted to steel pipes of different diameters for centering rotational conveying. Then, through the rotation of the steel pipe and the spray gun 15, the powder is fully sprayed.

[0032] Furthermore, the clamping assembly 3 includes a first adjusting frame 31, which is fixedly connected to the outer wall of the upper nut pair 26. Both ends of the first adjusting frame 31 are fixedly connected to a first bracket 32, and the other end of the first bracket 32 ​​is rotatably equipped with a pressure roller 33. The two ends of the first adjusting frame 31 are slidably connected to a guide shaft 27, which is fixedly connected to the inner wall of the conveying pipe 12. The clamping assembly 3 is mainly used to provide auxiliary clamping to the upper part of the steel pipe, thereby improving the stability of the steel pipe conveying.

[0033] Furthermore, the conveying assembly 4 includes a second adjusting frame 41, which is fixedly connected to the outer wall of the lower nut pair 26. Both ends of the second adjusting frame 41 are fixedly connected to a second bracket 42, and the other end of the second bracket 42 is rotatably equipped with a conveying roller 43. A DC motor 44 is fixedly connected to the outer wall of the second bracket 42. A synchronous belt drive mechanism 45 is connected between the output end of the DC motor 44 and the shaft of the conveying roller 43. Guide shafts 27 slide through both ends of the interior of the second adjusting frame 41. Driven by the DC motor 44 and driven by the synchronous belt drive mechanism 45, the conveying roller 43 is driven to rotate. Under the rotation of the conveying roller 43, the steel pipe is driven to rotate and move due to contact friction with the outer wall of the steel pipe.

[0034] Working principle: First, a steel pipe is placed between the pressure roller 33 and the conveying roller 43. At the same time, by driving the adjusting component 2, the adjusting component 2 drives the pressure roller 33 and the conveying roller 43 to move up and down, completing the contact and positioning of the outer wall of the steel pipe, ensuring the centering and conveying of the steel pipe. Then, driven by the DC motor 44 and driven by the synchronous belt transmission mechanism 45, the conveying roller 43 is rotated to complete the conveying of the steel pipe. When the steel pipe is conveyed into the spraying pipe 11, the outer wall of the steel pipe is sprayed by the epoxy powder sprayed by the spray gun 15.

[0035] The above are merely preferred embodiments of this utility model, but the scope of protection of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in this utility model, based on the technical solution and inventive concept of this utility model, should be included within the scope of protection of this utility model.

Claims

1. An epoxy powder coating anti-corrosion device for the outer wall of steel pipes, characterized in that: The spraying assembly (1) includes a spraying pipe (11), both ends of which are connected to a conveying pipe (12). The bottom of the spraying pipe (11) is integrally formed with a material collection trough (13), and the top of the spraying pipe (11) is fixedly connected to a spray gun (15). Adjustment component (2), clamping component (3) and conveying component (4). The two sets of adjustment components (2) are respectively connected to the conveying pipe (12), and the upper and lower displacement ends of the adjustment component (2) are respectively connected to the clamping component (3) and the conveying component (4). The clamping component (3) and the conveying component (4) are used for the self-rotation conveying of the steel pipe, and the adjustment component (2) is used for the spacing adjustment of the clamping component (3) and the conveying component (4).

2. The epoxy powder coating anti-corrosion equipment for the outer wall of steel pipes according to claim 1, characterized in that: The end of the conveying pipe (12) away from the spraying pipe (11) is fixedly connected to a partition plate (14). A barrier ring is provided between the spraying pipe (11) and the conveying pipe (12), and the inner diameter of the barrier ring is equal to the inner diameter of the partition plate (14). The inner diameter of the partition plate (14) is the maximum pipe size that the equipment can process.

3. The epoxy powder coating anti-corrosion equipment for the outer wall of steel pipes according to claim 2, characterized in that: The adjustment component (2) includes a geared motor (21), the output end of which is fixedly connected to a first commutator (22), the output end of which is connected to a second commutator (24) via a transmission shaft (23), the output end of which is fixedly connected to a bidirectional lead screw (25), and each bidirectional lead screw (25) has two nut pairs (26) externally connected to it, the nut pairs (26) being the displacement ends of the adjustment component (2).

4. The epoxy powder coating anti-corrosion equipment for the outer wall of steel pipes according to claim 3, characterized in that: The outer wall of the conveying pipe (12) is fixedly connected to a support platform, and a geared motor (21), a first commutator (22) and a second commutator (24) are connected above the support platform. The outer wall of the bidirectional screw (25) is rotatably connected to the conveying pipe (12) through a bearing.

5. The epoxy powder coating anti-corrosion equipment for the outer wall of steel pipes according to claim 4, characterized in that: The pressing assembly (3) includes a first adjusting frame (31), which is fixedly connected to the outer wall of the upper nut pair (26). Both ends of the first adjusting frame (31) are fixedly connected to a first bracket (32). The other end of the first bracket (32) is rotatably provided with a pressure roller (33). The two ends of the first adjusting frame (31) are slidably connected to a guide shaft (27), which is fixedly connected to the inner wall of the conveying pipe (12).

6. The epoxy powder coating anti-corrosion equipment for the outer wall of steel pipes according to claim 1, characterized in that: The conveying assembly (4) includes a second adjusting frame (41), which is fixedly connected to the outer wall of the lower nut pair (26). Both ends of the second adjusting frame (41) are fixedly connected to a second bracket (42). The other end of the second bracket (42) is rotatably provided with a conveying roller (43). The outer wall of the second bracket (42) is fixedly connected to a DC motor (44). The output end of the DC motor (44) is connected to the shaft of the conveying roller (43) by a synchronous belt drive mechanism (45). Both ends of the interior of the second adjusting frame (41) are slidably connected to guide shafts (27).

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