A coating device for processing a galvanized steel pipe

Abstract

The application provides a coating device for galvanized steel pipe processing, and relates to the technical field of galvanized steel pipe processing. The device comprises a base, a cleaning mechanism and a coating mechanism which are arranged on the base. The feeding end and the discharging end of the cleaning mechanism are both provided with a long pipe feeding mechanism, and the feeding end of the cleaning mechanism is also provided with a short pipe feeding mechanism. The device integrates the cleaning mechanism and the coating mechanism through the base, forms a continuous processing assembly line, and is compatible with the long pipe feeding mechanism and the short pipe feeding mechanism. The device breaks through the length limitation of traditional devices, meets the cleaning requirements of steel pipes with different lengths, and improves the applicability and flexibility of the device.

Description

Technical Field

[0001] This application relates to the field of galvanized steel pipe processing technology, and more specifically, to a coating apparatus for galvanized steel pipe processing. Background Technology

[0002] Galvanized steel pipe is a welded steel pipe with a hot-dip galvanized or electro-galvanized layer on its surface. Galvanizing increases the corrosion resistance of the steel pipe and extends its service life. For example, Chinese patent CN202222760024.X discloses a coating device for processing galvanized steel pipe, which includes a base and a frame set at the top of the base. A fixing component is set at the top of the frame, and a cleaning tank is set at the top of the base. A cleaning component is set inside the cleaning tank. The cleaning component includes a moving disc with several through holes along the circumferential direction on its surface. A cleaning sleeve is set inside each through hole. This utility model has a simple structure. The motor can drive the lead screw to rotate, which in turn drives the moving disc to move through the nut. This allows the cleaning sleeve to pass through the outside of the steel pipe and move along the outer wall of the steel pipe. The scraper can scrape off some strongly adhesive substances on the outer wall of the steel pipe. Combined with the cleaning liquid, the cleaning effect of the steel pipe can be effectively improved without affecting the subsequent coating process.

[0003] However, this existing technology has certain limitations in its use. The cleaning sleeve and scraper ring in this existing technology have a short travel distance, and it is only suitable for surface cleaning of short-sized steel pipes. The cleaning range is limited, and the application scenarios are restricted. Summary of the Invention

[0004] The purpose of this application is to provide a coating device for galvanized steel pipe processing, which can solve the technical problems of the prior art where the cleaning sleeve and scraper ring have a short travel distance, are only suitable for surface cleaning of short-sized steel pipes, have a limited cleaning range, and are restricted in application scenarios.

[0005] This application provides a coating device for galvanized steel pipe processing, including a base, a cleaning mechanism and a coating mechanism disposed on the base. The cleaning mechanism is provided with a long pipe feeding mechanism at both the inlet and outlet ends, and the inlet end of the cleaning mechanism is also provided with a short pipe feeding mechanism.

[0006] The long tube feeding mechanism includes a mounting frame, a motor, and two guide rollers. The mounting frame is fixedly mounted on the base, and the guide rollers are rotatably mounted on the mounting frame via bearings. The two guide rollers are arranged vertically, and the steel pipe passes between the two guide rollers. The motor is fixedly mounted on the mounting frame, and the output shaft of the motor is connected to the guide roller located below.

[0007] The short pipe feeding mechanism includes a mounting plate, a screw, and an inner support assembly for supporting and fixing the steel pipe. The base has a sliding groove, the mounting plate is slidably disposed in the sliding groove, and the mounting plate can slide to be close to or away from the feeding axis of the cleaning mechanism. The screw is threaded through the mounting plate, and the inner support assembly is fixedly disposed at the end of the screw close to the cleaning mechanism.

[0008] The internal support assembly includes a mounting block, at least two support blocks, and a number of cylinders equal to the number of support blocks. The mounting block is fixedly disposed on one end of the screw near the cleaning mechanism. The cylinders are fixedly disposed on the mounting block, and the piston rod of the cylinder is connected to the support block. The support blocks are evenly distributed on the mounting block, and the support blocks can abut against the inner wall of the steel pipe.

[0009] The cleaning mechanism includes a cleaning tank, a cleaning brush ring and a nozzle disposed inside the cleaning tank, a steel pipe passing through the cleaning tank and the cleaning brush ring, and an external liquid inlet pipe connected to the nozzle.

[0010] A handle is fixedly provided at the end of the screw away from the cleaning mechanism.

[0011] The outer wall of the support block is provided with a rubber layer.

[0012] The mounting block has the same number of mounting slots as the support block. The cylinder is fixedly installed in the mounting slot. A protective cover is fixedly installed on one end of the support block near the mounting block. The protective cover is slidably connected to the mounting slot and covers the outside of the cylinder.

[0013] The device has two nozzles, which are located at the feed end and discharge end of the cleaning brush ring, respectively, and face the cleaning brush ring.

[0014] The bottom side of the cleaning tank is connected to a drain pipe.

[0015] The beneficial effects of this utility model are:

[0016] This utility model provides a coating device for galvanized steel pipe processing. In use, when the length of the steel pipe to be cleaned is greater than the distance between two long-pipe feeding mechanisms, it is fed through the long-pipe feeding mechanism, i.e., the rotation of the guide roller drives the long steel pipe to move linearly. When the length of the steel pipe to be cleaned is less than the distance between the two long-pipe feeding mechanisms, the short steel pipe cannot be effectively supported inside the cleaning tank. Therefore, it is fed through the short-pipe feeding mechanism, i.e., the short steel pipe is supported and fixed from the inner wall of the steel pipe by an internal support component, and the rotation of the screw drives the short steel pipe to move linearly. After the steel pipe passes through the cleaning mechanism for surface cleaning, it enters the subsequent coating mechanism to complete the galvanizing layer coating. This device integrates the cleaning mechanism and the coating mechanism through a base, forming a continuous processing line. Through the compatible design of the long-pipe feeding mechanism and the short-pipe feeding mechanism, it overcomes the limitations of traditional devices on steel pipe length, meets the cleaning needs of steel pipes of different lengths, and improves the applicability and flexibility of the device. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of this application, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this application and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the overall top view structure in some embodiments of this application;

[0019] Figure 2 This is a sectional view of the overall main structure during the cleaning of long steel pipes in some embodiments of this application;

[0020] Figure 3 This is a sectional view of the overall main structure during the cleaning of short steel pipes in some embodiments of this application;

[0021] Figure 4 This is a schematic diagram of the side view of the long tube feeding mechanism in some embodiments of this application;

[0022] Figure 5 This is a cross-sectional view of the side structure of the internal support component in some embodiments of this application.

[0023] The reference numerals in the attached figures are as follows:

[0024] 1. Base; 11. Slide groove;

[0025] 2. Cleaning mechanism; 21. Cleaning tank; 22. Cleaning brush ring; 23. Nozzle; 24. Liquid inlet pipe; 25. Drain pipe;

[0026] 3. Coating mechanism;

[0027] 4. Long tube feeding mechanism; 41. Mounting frame; 42. Motor; 43. Guide roller;

[0028] 5. Short pipe feeding mechanism; 51. Mounting plate; 52. Screw; 53. Internal support assembly; 531. Mounting block; 532. Support block; 533. Cylinder; 534. Mounting groove; 535. Protective cover; 54. Handle; 6. Steel pipe. Detailed Implementation

[0029] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. The components of the embodiments of this application described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0030] Therefore, the following detailed description of the embodiments of this application provided in the accompanying drawings is not intended to limit the scope of the claimed application, but merely to illustrate selected embodiments of the application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application.

[0031] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0032] In the description of this application, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this application is in use. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on this application. In addition, the terms "first," "second," and "third," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0033] Furthermore, terms such as "horizontal," "vertical," and "sag" do not imply that components must be absolutely horizontal or suspended, but rather that they can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal relative to "vertical," and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0034] In the description of this application, it should also be noted that, unless otherwise expressly specified and limited, the terms "set up," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0035] like Figures 1 to 3 As shown in the figure, this application provides a coating device for galvanized steel pipe processing, including a base 1, a cleaning mechanism 2 and a coating mechanism 3 disposed on the base 1. The inlet and outlet ends of the cleaning mechanism 2 are both provided with long pipe feeding mechanisms 4, and the inlet end of the cleaning mechanism 2 is also provided with short pipe feeding mechanisms 5.

[0036] In use, when the length of the steel pipe 6 to be cleaned is greater than the distance between the two long pipe feeding mechanisms 4, the long pipe feeding mechanism 4 feeds the pipe, that is, the rotation of the guide roller 43 drives the long steel pipe 6 to move linearly; when the length of the steel pipe 6 to be cleaned is less than the distance between the two long pipe feeding mechanisms 4, the short steel pipe 6 cannot be effectively supported when it enters the cleaning box 21, so it is fed by the short pipe feeding mechanism 5, that is, the inner support component 53 supports and fixes the short steel pipe 6 from the inner wall of the steel pipe 6, and the rotation of the screw 52 drives the short steel pipe 6 to move linearly; after the steel pipe 6 is conveyed through the cleaning mechanism 2 to complete the surface cleaning, it enters the subsequent coating mechanism 3 to complete the galvanizing coating.

[0037] The device integrates a cleaning mechanism 2 and a coating mechanism 3 through a base 1 to form a continuous processing line. It also features a design that allows for compatibility between a long pipe feeding mechanism 4 and a short pipe feeding mechanism 5, breaking through the limitations of traditional devices on the length of steel pipes 6. This allows the device to meet the cleaning needs of steel pipes 6 of different lengths and improves its applicability and flexibility.

[0038] like Figures 1 to 4 As shown, in this embodiment, the long tube feeding mechanism 4 includes a mounting frame 41, a motor 42, and two guide rollers 43. The mounting frame 41 is fixedly mounted on the base 1, and the guide rollers 43 are rotatably mounted on the mounting frame 41 through bearings. The two guide rollers 43 are arranged vertically from top to bottom. The steel pipe 6 passes through the space between the two guide rollers 43. The motor 42 is fixedly mounted on the mounting frame 41, and the output shaft of the motor 42 is connected to the guide roller 43 located below.

[0039] In use, the long tube feeding mechanism 4 forms a clamping channel through the vertically arranged guide rollers 43. When the motor 42 is turned on, it drives the guide roller 43 located below to rotate, forming a clamping friction with the guide roller 43 located above. The friction drives the steel pipe 6 to move axially. The two long tube feeding mechanisms 4 work together to realize the conveying of the long steel pipe 6.

[0040] like Figures 1 to 3 As shown in Figure 5, in this embodiment, the short pipe feeding mechanism 5 includes a mounting plate 51, a screw 52, ​​and an inner support assembly 53 for supporting and fixing the steel pipe 6. A sliding groove 11 is provided on the base 1. The mounting plate 51 is slidably disposed in the sliding groove 11 and can slide to be close to or away from the feeding axis of the cleaning mechanism 2. The screw 52 is threaded through the mounting plate 51, and the inner support assembly 53 is fixedly disposed at the end of the screw 52 close to the cleaning mechanism 2.

[0041] In use, first push the mounting plate 51 horizontally along the chute 11 to the feeding axis of the cleaning mechanism 2, then rotate the screw 52 to advance it forward. The inner support assembly 53 advances with the screw 52 to the inner wall of the short steel pipe 6. Then, the inner support assembly 53 expands radially to tighten the inner wall of the short steel pipe 6 to achieve fixation. Then, continue to rotate the screw 52 to drive the short steel pipe 6 to move axially, thereby realizing the conveying of the short steel pipe 6. When conveying the long steel pipe 6, slide the mounting plate 51 away from the feeding axis of the cleaning mechanism 2 to avoid interference with the feeding of the long steel pipe 6.

[0042] like Figures 1 to 3 As shown in Figure 5, in this embodiment, the inner support assembly 53 includes a mounting block 531, at least two support blocks 532, and a number of cylinders 533 equal to the number of support blocks 532. The mounting block 531 is fixedly disposed on one end of the screw 52 near the cleaning mechanism 2. The cylinders 533 are fixedly disposed on the mounting block 531, and the piston rod of the cylinders 533 is connected to the support blocks 532. The support blocks 532 are evenly distributed on the mounting block 531, and the support blocks 532 can abut against the inner wall of the steel pipe 6.

[0043] When in use, the cylinder 533 is activated to drive the support block 532 to expand radially, so that the outer wall of the support block 532 fits tightly with the inner wall of the short steel pipe 6, thus fixing the inner wall of the short steel pipe 6.

[0044] like Figures 1 to 3 As shown, in this embodiment, the cleaning mechanism 2 includes a cleaning tank 21, a cleaning brush ring 22 and a nozzle 23 disposed in the cleaning tank 21, a steel pipe 6 passing through the cleaning tank 21 and the cleaning brush ring 22, and an external liquid inlet pipe 24 connected to the nozzle 23.

[0045] When the steel pipe 6 is conveyed into the cleaning tank 21 and passes through the cleaning brush ring 22, the cleaning fluid is delivered to the nozzle 23 through the liquid inlet pipe 24. The nozzle 23 sprays the cleaning fluid to soften and rinse the surface dirt, and the cleaning brush ring 22 removes the surface dirt by brushing. The combination of brushing and rinsing achieves deep cleaning and improves the cleaning effect of the steel pipe 6.

[0046] like Figures 1 to 3As shown, in this embodiment, a handle 54 is fixedly provided at the end of the screw 52 away from the cleaning mechanism 2; the handle 54 makes it easier for the operator to apply force to rotate the screw 52, ​​thus improving the ease of use.

[0047] In this embodiment, the outer wall of the support block 532 is provided with a rubber layer; the rubber layer has a good anti-slip effect and effectively improves the support stability of the support block 532 on the steel pipe 6.

[0048] like Figures 1 to 3 As shown in Figure 5, in this embodiment, the mounting block 531 has the same number of mounting slots 534 as the support block 532. The cylinder 533 is fixedly installed in the mounting slot 534. A protective cover 535 is fixedly installed on one end of the support block 532 near the mounting block 531. The protective cover 535 is slidably connected to the mounting slot 534 and covers the outside of the cylinder 533.

[0049] The protective cover 535 slides along the mounting groove 534 as the support block 532 moves, and always covers the cylinder 533, reducing the amount of cleaning fluid entering the cylinder 533 and extending its service life.

[0050] like Figures 1 to 3 As shown, in this embodiment, there are two nozzles 23, which are respectively located at the feed end and the discharge end of the cleaning brush ring 22 and face the cleaning brush ring 22. The feed end nozzle 23 pre-wets the surface of the steel pipe 6, and the discharge end nozzle 23 washes away the dirt brushed off by the cleaning brush ring 22. The bidirectional rinsing improves the cleaning effect of the steel pipe 6.

[0051] like Figure 1 As shown, in this embodiment, a drain pipe 25 is connected to the bottom side of the cleaning tank 21; sewage can be discharged from the cleaning tank 21 in a timely manner through the drain pipe 25.

[0052] Working principle: When the coating device for galvanized steel pipe processing provided in this application is in use, when the length of the steel pipe 6 to be cleaned is greater than the distance between the two long pipe feeding mechanisms 4, the long pipe feeding mechanism 4 is used to feed the steel pipe. That is, the motor 42 is turned on to drive the lower guide roller 43 to rotate, which forms a clamping friction with the upper guide roller 43. The friction is used to drive the long steel pipe 6 to move axially. The two long pipe feeding mechanisms 4 work together to realize the conveying of the long steel pipe 6.

[0053] When the length of the steel pipe 6 to be cleaned is less than the distance between the two long pipe feeding mechanisms 4, the short steel pipe 6 cannot be effectively supported when it enters the cleaning box 21. It is fed by the short pipe feeding mechanism 5. First, the mounting plate 51 is pushed to move horizontally along the slide 11 to the feeding axis of the cleaning mechanism 2. Then, the handle 54 is rotated to drive the screw 52 to rotate, so that the screw 52 moves forward. The inner support component 53 moves forward with the screw 52 to the inner wall of the short steel pipe 6. Then, the cylinder 533 is opened to drive the support block 532 to expand radially, so that the outer wall of the support block 532 is tightly attached to the inner wall of the short steel pipe 6, and the inner wall of the short steel pipe 6 is tightened to fix it. Then, the screw 52 is rotated to drive the short steel pipe 6 to move axially, so as to realize the conveying of the short steel pipe 6.

[0054] When the steel pipe 6 is conveyed into the cleaning tank 21 and passes through the cleaning brush ring 22, the cleaning fluid is delivered to the nozzle 23 through the liquid inlet pipe 24. The nozzle 23 sprays the cleaning fluid to soften and rinse the surface dirt. The cleaning brush ring 22 removes the surface dirt by brush friction. After the surface cleaning is completed, the steel pipe 6 enters the subsequent coating mechanism 3 to complete the galvanizing coating.

[0055] The above are merely preferred embodiments of this application and are not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A coating device for processing galvanized steel pipes, characterized in that: It includes a base (1), a cleaning mechanism (2) and a coating mechanism (3) disposed on the base (1). The inlet and outlet ends of the cleaning mechanism (2) are both provided with long tube feeding mechanisms (4), and the inlet end of the cleaning mechanism (2) is also provided with short tube feeding mechanisms (5).

2. The coating apparatus for processing galvanized steel pipes according to claim 1, characterized in that: The long tube feeding mechanism (4) includes a mounting frame (41), a motor (42), and two guide rollers (43). The mounting frame (41) is fixedly mounted on the base (1). The guide rollers (43) are rotatably mounted on the mounting frame (41) via bearings, and the two guide rollers (43) are arranged vertically from top to bottom. The steel pipe (6) passes between the two guide rollers (43). The motor (42) is fixedly mounted on the mounting frame (41), and the output shaft of the motor (42) is connected to the guide roller (43) located below.

3. The coating apparatus for processing galvanized steel pipes according to claim 2, characterized in that: The short pipe feeding mechanism (5) includes a mounting plate (51), a screw (52), and an inner support assembly (53) for supporting and fixing the steel pipe (6). The base (1) has a sliding groove (11). The mounting plate (51) is slidably disposed in the sliding groove (11), and the mounting plate (51) can slide to be close to or away from the feeding axis of the cleaning mechanism (2). The screw (52) is threaded through the mounting plate (51), and the inner support assembly (53) is fixedly disposed at one end of the screw (52) close to the cleaning mechanism (2).

4. The coating apparatus for processing galvanized steel pipes according to claim 3, characterized in that: The inner support assembly (53) includes a mounting block (531), at least two support blocks (532), and a number of cylinders (533) equal to the number of support blocks (532). The mounting block (531) is fixedly mounted on one end of the screw (52) near the cleaning mechanism (2). The cylinders (533) are fixedly mounted on the mounting block (531), and the piston rod of the cylinder (533) is connected to the support block (532). The support blocks (532) are evenly distributed on the mounting block (531), and the support blocks (532) can abut against the inner wall of the steel pipe (6).

5. The coating apparatus for processing galvanized steel pipes according to claim 2, characterized in that: The cleaning mechanism (2) includes a cleaning tank (21), a cleaning brush ring (22) and a nozzle (23) disposed in the cleaning tank (21), the steel pipe (6) passes through the cleaning tank (21) and the cleaning brush ring (22), and the nozzle (23) is externally connected to a liquid inlet pipe (24).

6. The coating apparatus for processing galvanized steel pipes according to claim 3, characterized in that: A handle (54) is fixedly provided at the end of the screw (52) away from the cleaning mechanism (2).

7. The coating apparatus for processing galvanized steel pipes according to claim 4, characterized in that: The outer wall of the support block (532) is provided with a rubber layer.

8. The coating apparatus for processing galvanized steel pipes according to claim 4, characterized in that: The mounting block (531) has the same number of mounting slots (534) as the support block (532). The cylinder (533) is fixedly installed in the mounting slot (534). A protective cover (535) is fixedly installed on one end of the support block (532) near the mounting block (531). The protective cover (535) is slidably connected to the mounting slot (534) and covers the outside of the cylinder (533).

9. The coating apparatus for processing galvanized steel pipes according to claim 5, characterized in that: There are two nozzles (23), and the two nozzles (23) are respectively located at the feed end and the discharge end of the cleaning brush ring (22) and facing the cleaning brush ring (22).

10. The coating apparatus for processing galvanized steel pipes according to claim 5, characterized in that: A drain pipe (25) is connected to the bottom side of the cleaning tank (21).

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