A device for preventing corrosion of the outer surface of a welded steel pipe by an epoxy layer

Abstract

This utility model relates to the field of steel pipe processing technology, and more particularly to a device for epoxy coating anti-corrosion treatment of the outer surface of welded steel pipes. This utility model provides a device capable of clamping the inner surface of welded steel pipes, preventing the anti-corrosion material on the surface of the welded steel pipe from being affected by the clamps or supporting rollers. The device includes a first support frame and a protective cover, with the protective cover connected to the upper part of the first support frame. This utility model achieves the effect of clamping the inner surface of the welded steel pipe and preventing the anti-corrosion material on the surface of the welded steel pipe from being affected by the clamps or supporting rollers by moving the sliding frame to the left, causing the connecting plate to rotate, which in turn causes the second support frame to rotate outwards, causing the rotating frame to rotate. This allows the pulleys to contact the inner wall of the welded steel pipe, causing the pulleys to rotate, thus achieving the effect of clamping the inner surface of the welded steel pipe and preventing the anti-corrosion material on the surface of the welded steel pipe from being affected by the clamps or supporting rollers.

Description

Technical Field

[0001] This utility model relates to the field of steel pipe processing technology, and in particular to a device for epoxy layer anti-corrosion treatment of the outer surface of welded steel pipes. Background Technology

[0002] Epoxy coating for corrosion protection of welded steel pipes is a process specifically designed to protect steel pipes from corrosion. By coating the outer surface of the steel pipe with one or more layers of epoxy resin, the corrosion resistance of the steel pipe can be significantly improved, its service life extended, and the pipe can maintain good structural integrity and functionality even in harsh environments.

[0003] For example, a device for epoxy coating anti-corrosion treatment of the outer surface of welded steel pipe, with public announcement number CN213644703U, includes two bases. A first fixed seat and a second fixed seat are fixedly provided at the middle of the bottom of each of the two bases. A first rotating shaft is rotatably connected to the middle of each of the two first fixed seats, and a second rotating shaft is rotatably connected to the middle of each of the two second fixed seats. A supporting roller is fixedly provided at one end of each of the two first rotating shafts and one end of each of the two second rotating shafts. The device places the welded steel pipe between the supporting rollers, and the rotation of the supporting rollers drives the welded steel pipe to rotate. Anti-corrosion oil falls onto the outer wall of the welded steel pipe, and a roller brush applies the anti-corrosion oil to the outer wall of the welded steel pipe. However, due to the contact position between the supporting rollers and the welded steel pipe, some anti-corrosion oil is easily adhered to the supporting rollers when applying the anti-corrosion oil, affecting the uniformity of the coating.

[0004] Therefore, it is necessary to design a device for epoxy coating anti-corrosion treatment of the outer surface of welded steel pipe that can clamp the inner surface of the welded steel pipe and prevent the anti-corrosion material on the surface of the welded steel pipe from being affected by the clamp or supporting roller. Utility Model Content

[0005] To overcome the shortcomings of existing epoxy coating anti-corrosion treatment devices for the outer surface of welded steel pipes, where some anti-corrosion oil tends to adhere to the support rollers at the contact point between the support rollers and the welded steel pipe, affecting the uniformity of the coating, this utility model provides an epoxy coating anti-corrosion treatment device for the outer surface of welded steel pipes that can clamp the inner surface of the welded steel pipe, preventing the anti-corrosion material on the surface of the welded steel pipe from being affected by the clamps or support rollers.

[0006] The technical implementation scheme of this utility model is as follows: a device for epoxy coating anti-corrosion treatment of the outer surface of welded steel pipe, including a first support frame, a protective cover, a motor, gears, a rotating rod, a clamping assembly, and a spraying assembly. The protective cover is connected to the upper part of the first support frame, and the motor is connected to the upper right side of the first support frame. The motor and the processor are electrically connected through a control module. The rotating rod is rotatably connected to the middle of the protective cover. A gear is connected to the output shaft of the motor, and a gear is also connected to the right side of the rotating rod. The gears mesh with each other. The rotating rod is provided with a clamping assembly that can clamp the inner surface of the welded steel pipe, and the protective cover is provided with a spraying assembly that can uniformly spray an anti-corrosion coating onto the outer surface of the welded steel pipe.

[0007] In a preferred embodiment of this invention, the front of the protective cover is made of a transparent material.

[0008] In a preferred embodiment of this utility model, the clamping assembly includes an electric push rod, a sliding frame, a connecting plate, a second support frame, a rotating frame, and pulleys. The electric push rod is connected to the right side of the first support frame. The electric push rod and the processor are electrically connected through a control module. A connector is provided on the telescopic end of the electric push rod. The sliding frame is slidably connected to the right side of the rotating rod. The sliding frame is rotatably connected to the connector. The four parts of the sliding frame (up, down, front, and back) are rotatably connected to the connecting plate. The second support frame is rotatably connected to the connecting plate. The four parts of the rotating rod (up, down, front, and back) are rotatably connected to the left and right rotating frames. The rotating frames are rotatably connected to the adjacent second support frames. The two parts of the second support frames (left and right) are rotatably connected to pulleys.

[0009] In a preferred embodiment of the present invention, a spraying assembly is further included. The spraying assembly includes a flat belt, a reciprocating screw, a slider, and a spraying frame. The upper part of the protective cover is rotatably connected to the reciprocating screw, and a pulley is provided on the right side of the reciprocating screw. A pulley is also provided on the motor output shaft. A flat belt is wound between the pulleys. The left side of the reciprocating screw is threadedly connected to the slider, and a spraying frame is connected to the lower side of the slider. The spraying frame is slidably connected to the protective cover.

[0010] In a preferred embodiment of this utility model, a docking nozzle is provided on the front side of the spraying frame.

[0011] In a preferred embodiment of this utility model, the spraying frame has an arc-shaped structure.

[0012] The beneficial effects of this utility model are as follows: 1. By moving the sliding frame to the left, the connecting plate rotates, which in turn causes the second support frame to rotate outward and unfold, causing the rotating frame to rotate. This causes the pulley to contact the inner wall of the welded steel pipe and rotate, thus achieving the effect of clamping the inner surface of the welded steel pipe and preventing the anti-corrosion material on the surface of the welded steel pipe from being affected by the clamp or the supporting roller.

[0013] 2. This utility model uses a rotating rod to rotate, which in turn rotates a pulley, causing a flat belt to rotate. This drives a reciprocating screw to rotate, causing a slider to move under the action of the thread. This, in turn, moves the spraying frame left and right, allowing the anti-corrosion coating to be evenly sprayed onto the outer surface of the welded steel pipe. This achieves the effect of uniformly spraying an anti-corrosion coating onto the outer surface of the welded steel pipe and improving the uniformity of the spraying. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0015] Figure 2 This is a three-dimensional structural diagram of the support frame and protective cover of this utility model.

[0016] Figure 3 This is a three-dimensional structural diagram of the motor and rotating rod components of this utility model.

[0017] Figure 4 This is a three-dimensional structural diagram of the electric actuator and pulley components of this utility model.

[0018] Figure 5 This is a three-dimensional structural diagram of the reciprocating lead screw and spraying frame components of this utility model.

[0019] Reference numerals: 1_First support frame, 2_Protective cover, 3_Motor, 4_Gear, 5_Rotating rod, 6_Electric push rod, 7_Sliding frame, 8_Connecting plate, 9_Second support frame, 10_Rotating frame, 11_Pulley, 12_Flat belt, 13_Reciprocating screw, 14_Slider, 15_Spraying frame. Detailed Implementation

[0020] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0021] A device for epoxy coating anti-corrosion treatment of the outer surface of welded steel pipes, such as Figures 1-5 As shown, it includes a first support frame 1, a protective cover 2, a motor 3, a gear 4, a rotating rod 5, a clamping assembly, and a spraying assembly. The protective cover 2 is connected to the upper part of the first support frame 1. The front of the protective cover 2 is made of transparent material to facilitate observation of the internal situation. The motor 3 is connected to the upper right side of the first support frame 1. The motor 3 and the processor are electrically connected through a control module. The rotating rod 5 is rotatably connected to the middle of the protective cover 2. The gear 4 is connected to the output shaft of the motor 3. The right side of the rotating rod 5 is also connected to the gear 4. The gears 4 mesh with each other. The rotating rod 5 is equipped with a clamping assembly, and the protective cover 2 is equipped with a spraying assembly.

[0022] like Figure 1 , Figure 2 , Figure 4 and Figure 5As shown, the clamping assembly includes an electric push rod 6, a sliding frame 7, a connecting plate 8, a second support frame 9, a rotating frame 10, and pulleys 11. The electric push rod 6 is connected to the right side of the first support frame 1. The electric push rod 6 and the processor are electrically connected through a control module. A connector is provided on the telescopic end of the electric push rod 6. The sliding frame 7 is slidably connected to the right side of the rotating rod 5. The sliding frame 7 is rotatably connected to the connector. The connecting plate 8 is rotatably connected to the four parts of the sliding frame 7 (up, down, front, and back). The second support frame 9 is rotatably connected to the connecting plate 8. The left and right rotating frames 10 are rotatably connected to the four parts of the rotating rod 5 (up, down, front, and back). The rotating frames 10 are rotatably connected to the adjacent second support frame 9. The pulleys 11 are rotatably connected to the left and right parts of the second support frame 9.

[0023] like Figure 1 , Figure 2 and Figure 5 As shown, it also includes a spraying assembly, which includes a flat belt 12, a reciprocating screw 13, a slider 14, and a spraying frame 15. The upper part of the protective cover 2 is rotatably connected to the reciprocating screw 13, and a pulley is provided on the right side of the reciprocating screw 13. A pulley is also provided on the output shaft of the motor 3. The flat belt 12 is wound between the pulleys. The left side of the reciprocating screw 13 is threadedly connected to the slider 14, and the lower side of the slider 14 is connected to the spraying frame 15. The spraying frame 15 is slidably connected to the protective cover 2. The front side of the spraying frame 15 is provided with a docking nozzle for easy docking. The spraying frame 15 has an arc-shaped structure for easy spraying.

[0024] When using this device, first place the first support frame 1 on the epoxy anti-corrosion treatment area on the outer surface of the welded steel pipe, then put the welded steel pipe between the outer sides of the second support frame 9. Then, the processor starts the electric push rod 6 through the control module, which drives the sliding frame 7 to move to the left, so that the connecting plate 8 rotates and drives the second support frame 9 to rotate outward, so that the rotating frame 10 rotates and the pulley 11 contacts the inner wall of the welded steel pipe, drives the pulley 11 to rotate, and clamps and fixes the welded steel pipe. This allows the inner surface of the welded steel pipe to be clamped, preventing the anti-corrosion material on the surface of the welded steel pipe from being affected by the clamps or supporting rollers.

[0025] Then, the anti-corrosion coating is applied to the nozzle on the spray frame 15, and the motor 3 is started, driving the gear 4 to rotate. The gears 4 mesh with each other, driving the rotating rod 5 to rotate, causing the welded steel pipe to rotate. At the same time, the motor 3 also drives the pulley to rotate, causing the flat belt 12 to rotate, which in turn drives the reciprocating screw 13 to rotate, causing the slider 14 to move under the action of the thread, driving the spray frame 15 to move left and right, so that the anti-corrosion coating is evenly sprayed onto the outer surface of the welded steel pipe. The protective cover 2 shields the anti-corrosion coating to prevent splashing, thereby enabling the anti-corrosion coating to be evenly sprayed onto the outer surface of the welded steel pipe, improving the uniformity of the spraying.

[0026] Although this disclosure has been described with respect to only a limited number of embodiments, those skilled in the art who benefit from this disclosure will understand that various other embodiments can be devised without departing from the scope of this invention. Therefore, the scope of this invention should be limited only by the appended claims.

Claims

1. A device for preventing corrosion of the outer surface of a welded steel pipe by an epoxy layer, characterized in that, It includes a first support frame (1), a protective cover (2), a motor (3), a gear (4), a rotating rod (5), a clamping assembly, and a spraying assembly. The protective cover (2) is connected to the upper part of the first support frame (1), and the motor (3) is connected to the upper right side of the first support frame (1). The motor (3) and the processor are electrically connected through a control module. The rotating rod (5) is rotatably connected to the middle of the protective cover (2). The gear (4) is connected to the output shaft of the motor (3), and the gear (4) is also connected to the right side of the rotating rod (5). The gears (4) mesh with each other. The rotating rod (5) is equipped with a clamping assembly that can clamp the inner surface of the welded steel pipe. The protective cover (2) is equipped with a spraying assembly that can uniformly spray an anti-corrosion coating onto the outer surface of the welded steel pipe.

2. The apparatus for preventing corrosion of the outer surface of a welded steel pipe by an epoxy layer according to claim 1, wherein The front of the protective cover (2) is made of transparent material.

3. The epoxy coating anti-corrosion treatment device for the outer surface of welded steel pipe according to claim 1, characterized in that, The clamping assembly includes an electric push rod (6), a sliding frame (7), a connecting plate (8), a second support frame (9), a rotating frame (10), and a pulley (11). The electric push rod (6) is connected to the right side of the first support frame (1). The electric push rod (6) and the processor are electrically connected through a control module. A connector is provided on the telescopic end of the electric push rod (6). The sliding frame (7) is slidably connected to the right side of the rotating rod (5). The sliding frame (7) is rotatably connected to the connector. The four parts of the sliding frame (7) are rotatably connected to the connecting plate (8). The second support frame (9) is rotatably connected to the connecting plate (8). The four parts of the rotating rod (5) are rotatably connected to the left and right rotating frames (10). The rotating frames (10) are rotatably connected to the adjacent second support frame (9). The two parts of the second support frame (9) are rotatably connected to the pulley (11).

4. The epoxy coating anti-corrosion treatment device for the outer surface of welded steel pipe according to claim 1, characterized in that, It also includes a spraying assembly, which includes a flat belt (12), a reciprocating screw (13), a slider (14), and a spraying frame (15). The upper part of the protective cover (2) is rotatably connected to the reciprocating screw (13), and a pulley is provided on the right side of the reciprocating screw (13). A pulley is also provided on the output shaft of the motor (3). The flat belt (12) is wound between the pulleys. The left side of the reciprocating screw (13) is threadedly connected to the slider (14), and the lower side of the slider (14) is connected to the spraying frame (15). The spraying frame (15) is slidably connected to the protective cover (2).

5. The epoxy coating anti-corrosion treatment device for the outer surface of welded steel pipe according to claim 4, characterized in that, The spray gun (15) has a docking nozzle on the front side.

6. The epoxy coating anti-corrosion treatment device for the outer surface of welded steel pipe according to claim 4, characterized in that, The spraying rack (15) has an arc-shaped structure.

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