Spraying device for plastic-coated steel pipe processing

Abstract

The utility model relates to the technical field of plastic-coated steel pipe processing devices, in particular to a spraying device for plastic-coated steel pipe processing, which comprises a bottom plate placed on the ground, the top end of the bottom plate is fixedly connected with a support frame, and the top end of the support frame is fixedly connected with a driving motor. The driving motor is connected with a steel pipe through a clamping rotating structure, a waterproof shell is fixedly connected to the top end of the bottom plate, a water storage cavity is formed in the bottom end of the inner wall of the bottom plate, a water pump is fixedly connected to the bottom end of the inner wall of the water storage cavity, and the water pump is connected with a U-shaped pipe through a circulating structure. A steel pipe can be fixed by placing the steel pipe on the clamping plate and the fixing lantern ring, then the driving motor drives the steel pipe to rotate, spraying can be conveniently carried out on the inner wall and the outer wall of the steel pipe, steel pipes with different thicknesses can still be clamped, therefore, an operator does not need to change the surface any more, the switching process is not laborious, and the working efficiency is improved. More time and labor are saved, and the working efficiency is greatly improved.

Description

Technical Field

[0001] The utility model relates to the technical field of plastic-coated steel pipe processing devices, and particularly relates to a spraying device for plastic-coated steel pipe processing. Background Art

[0002] A plastic-coated steel pipe, also known as a plastic-coated pipe, a steel-plastic composite pipe or a plastic-coated composite steel pipe, is a steel pipe processed by a special process through a spraying device for plastic-coated steel pipe processing. It takes a steel pipe as the base body, and through different processes such as spraying, rolling, dipping, sucking, etc., a plastic anti-corrosion layer is welded on the inner surface or the inner and outer surfaces of the steel pipe (bottom pipe), thereby forming a steel-plastic composite steel pipe.

[0003] The plastic-coated steel pipe has excellent corrosion resistance, high strength, non-toxicity, beautiful appearance, waterproof and anti-oxidation and other excellent properties. Therefore, it is more important to coat the surface of the steel pipe. However, the conventional coating method is to hold a spraying machine to spray on the surface of the pipeline. Since the diameter of the pipeline is large and the weight is large, the operator needs to roll the pipeline to change the surface, which is quite laborious during the switching process and requires the cooperation of multiple staff. It is not only time-consuming and laborious, but also greatly reduces the work efficiency. Content of the Utility Model

[0004] The purpose of the utility model is to solve the disadvantages that the existing conventional coating method is to hold a spraying machine to spray on the surface of the pipeline. Since the diameter of the pipeline is large and the weight is large, the operator needs to roll the pipeline to change the surface, which is quite laborious during the switching process and requires the cooperation of multiple staff. It is not only time-consuming and laborious, but also greatly reduces the work efficiency, and a spraying device for plastic-coated steel pipe processing is proposed.

[0005] In order to achieve the above purpose, the utility model adopts the following technical scheme:

[0006] A spraying device for plastic-coated steel pipe processing, including a bottom plate placed on the ground, the top end of the bottom plate is fixedly connected with a support frame, the top end of the support frame is fixedly connected with a driving motor, the driving motor is connected with a steel pipe through a clamping and rotating structure, the top end of the bottom plate is fixedly connected with a waterproof shell, the bottom end of the inner wall of the bottom plate is provided with a water storage cavity, and the bottom end of the inner wall of the water storage cavity is fixedly connected with a water pump, and the water pump is connected with a U-shaped pipe through a circulation structure.

[0007] Preferably, the clamping and rotating structure includes a rotating block, a sliding groove, a bidirectional lead screw, a stabilizing column, a clamping plate, a rotating block, a connecting block, a large stabilizing ring, a sleeve, and a pin. The rotating block is rotatably connected with the outer wall of the waterproof shell, the sliding groove is arranged on the outer wall of the rotating block, the bidirectional lead screw is rotatably connected with the inner wall of the sliding groove, the stabilizing column is slidably connected with the inner wall of the sliding groove, and the clamping plate is slidably connected with the inner wall of the sliding groove.

[0008] Preferably, the rotating block is rotatably connected to the top end of the bottom plate through a hinge, the connecting block is rotatably connected to the inner wall of the rotating block, the large stabilizing ring is slidably connected to the inner wall of the steel pipe, the sleeve is fixedly connected to the outer wall of the large stabilizing ring, and the pin is slidably connected to the sleeve and the connecting block respectively.

[0009] Preferably, one end of the rotating block facing outward is fixedly connected to the output end of the driving motor, the clamping plate is threadedly connected to the bidirectional lead screw, the clamping plate is slidably connected to the stabilizing column, the outer wall of the clamping plate abuts against the inner wall of the steel pipe, and the sleeve is slidably connected to the connecting block.

[0010] Preferably, the circulating structure includes evenly distributed fixed collar rings, water suction pipes, threaded connection caps, an external water injection pipe, and flat nozzle sprayers. The fixed collar rings are fixedly connected to the inner wall of the waterproof shell. One end of the water suction pipe is fixedly connected to the water pump. The external water injection pipe is connected to the water storage cavity in a penetrating manner. The flat nozzle sprayers are threadedly connected to the outer wall of the U-shaped pipe.

[0011] Preferably, the fixed collar ring is slidably connected to the outer wall of one end of the U-shaped pipe. The other end of the water suction pipe is connected to the U-shaped pipe through a threaded connection cap. The flat nozzle sprayers are arranged at the inner end of the outer wall of the U-shaped pipe.

[0012] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0013] 1. When the present utility model is in use, the steel pipe can be fixed by placing it on the clamping plate and the fixed collar ring, and then the driving motor drives the steel pipe to rotate, which is convenient for spraying from the inner and outer walls of the steel pipe. Under the action of the bidirectional lead screw and the rotating block, steel pipes of different thicknesses can still be clamped, so that it is no longer necessary for the operator to change the surface, and the switching process is no longer strenuous, saving time and effort, and greatly improving the work efficiency.

[0014] 2. When the present utility model is in use, the spraying raw materials in the water storage cavity can be reused through the circulating structure, and the raw materials that fall after spraying can also fall into the water storage cavity for secondary utilization. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a three-dimensional structural schematic diagram of a spraying device for plastic-coated steel pipe processing proposed by the present utility model;

[0016] Figure 2 is a three-dimensional structural schematic diagram of the X-axis half-section of a spraying device for plastic-coated steel pipe processing proposed by the present utility model;

[0017] Figure 3 is a three-dimensional structural schematic diagram of the Z-axis half-section of a spraying device for plastic-coated steel pipe processing proposed by the present utility model;

[0018] Figure 4 Schematic diagram of the three-dimensional structure of the top inside of a spraying device for the processing of plastic-coated steel pipes proposed by the present utility model;

[0019] Figure 5 Schematic diagram of the three-dimensional structure of the right side of a spraying device for the processing of plastic-coated steel pipes proposed by the present utility model.

[0020] In the figure: 1 bottom plate, 2 support frame, 3 drive motor, 4 steel pipe, 5 waterproof shell, 6 water storage cavity, 7 water pump, 8 U-shaped pipe, 9 rotating block, 10 chute, 11 bidirectional lead screw, 12 stabilizing column, 13 clamping plate, 14 rotating block, 15 connecting block, 16 large stabilizing ring, 17 sleeve, 18 pin, 19 fixed collar, 20 water suction pipe, 21 threaded connection cap, 22 external water injection pipe, 23 flat nozzle. Specific embodiments

[0021] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0022] Referring to Figures 1-5 , a spraying device for the processing of plastic-coated steel pipes includes a bottom plate 1 placed on the ground. The top of the bottom plate 1 is fixedly connected with a support frame 2. The top of the support frame 2 is fixedly connected with a drive motor 3. The drive motor 3 is connected with a steel pipe 4 through a clamping and rotating structure. The top of the bottom plate 1 is fixedly connected with a waterproof shell 5. The bottom end of the inner wall of the waterproof shell 5 is provided with a water storage cavity 6. The bottom end of the inner wall of the water storage cavity 6 is fixedly connected with a water pump 7. The water pump 7 is connected with a U-shaped pipe 8 through a circulation structure.

[0023] It should be noted that the drive motor 3 and the water pump 7 adopt existing technologies. The specific model specifications need to be selected according to the actual specifications of the device, etc. The specific selection calculation method adopts the existing technologies in the art, so it will not be elaborated here.

[0024] Furthermore, the clamping and rotating structure includes a rotating block 9, a chute 10, a bidirectional lead screw 11, a stabilizing column 12, a clamping plate 13, a rotating block 14, a connecting block 15, a large stabilizing ring 16, a sleeve 17, and a pin 18. The rotating block 9 is rotatably connected to the outer wall of the waterproof shell 5. The chute 10 is arranged on the outer wall of the rotating block 9. The bidirectional lead screw 11 is rotatably connected to the inner wall of the chute 10. The stabilizing column 12 is slidably connected to the inner wall of the chute 10. The clamping plate 13 is slidably connected to the inner wall of the chute 10.

[0025] Among them, the above is the left rotating clamping assembly in the clamping and rotating structure, which is driven by the driving motor 3 to drive the rotation of the rotating block 9, and then drives the clamping plate 13 to rotate. The clamping plate 13 drives the steel pipe 4 to rotate. When clamping, a cross screwdriver can be used to drive the rotation of the bidirectional lead screw 11. The bidirectional lead screw 11 drives the clamping plates 13 on both sides to approach or move away from each other along the stabilizing columns 12 simultaneously, clamping the inner wall of the steel pipe 4.

[0026] Further, the rotating block 14 is rotatably connected to the top end of the bottom plate 1 through a hinge. The connecting block 15 is rotatably connected to the inner wall of the rotating block 14. The large stabilizing ring 16 is slidably connected to the inner wall of the steel pipe 4. The sleeve 17 is fixedly connected to the outer wall of the large stabilizing ring 16. The pin 18 is slidably connected to the sleeve 17 and the connecting block 15 respectively.

[0027] Among them, one end of the bidirectional lead screw 11 penetrates through the outer wall of the rotating block 9 and is provided with a cross groove. The cross groove end is located outside the waterproof shell 5. A rubber pad is provided at the position where the clamping plate 13 is connected to the steel pipe 4, which will not damage the inner wall surface of the steel pipe 4.

[0028] Further, the outer end of the rotating block 9 is fixedly connected to the output end of the driving motor 3. The clamping plate 13 is threadedly connected to the bidirectional lead screw 11. The clamping plate 13 is slidably connected to the stabilizing column 12. The outer wall of the clamping plate 13 abuts against the inner wall of the steel pipe 4. The sleeve 17 is slidably connected to the connecting block 15.

[0029] Among them, the fixed collar 19 is slidably connected to the outer wall of the U-shaped pipe 8, playing a role in stable support.

[0030] Further, the circulation structure includes uniformly distributed fixed collars 19, water suction pipes 20, threaded connection caps 21, an external water injection pipe 22, and flat nozzle sprayers 23. The fixed collar 19 is fixedly connected to the inner wall of the waterproof shell 5. One end of the water suction pipe 20 is fixedly connected to the water pump 7. The external water injection pipe 22 is connected to the water storage cavity 6 in a penetrating manner. The flat nozzle sprayer 23 is threadedly connected to the outer wall of the U-shaped pipe 8.

[0031] Among them, the external water injection pipe 22 is connected to an external paint bucket, and paint is added to the inside of the water storage cavity 6 through the external water injection pipe 22.

[0032] Further, the fixed collar 19 is slidably connected to the outer wall of one end of the U-shaped pipe 8. The other end of the water suction pipe 20 is connected to the U-shaped pipe 8 through the threaded connection cap 21. The flat nozzle sprayer 23 is arranged on the inner end of the outer wall of the U-shaped pipe 8.

[0033] Among them, the water suction pipe 20 is arranged in an L shape and penetrates through the outer wall of the bottom plate 1 to be connected to the water pump 7. Under the action of the pin 18, the large stabilizing ring 16 can be disassembled and replaced.

[0034] Working principle: First, use a cross screwdriver to drive the bidirectional lead screw 11 to rotate. The bidirectional lead screw 11 drives the clamping plates 13 on both sides to approach or move away from each other along the stabilizing columns 12 simultaneously, clamping the inner wall of the steel pipe 4. Then, rotate the rotating block 14 to the bottom plate 1, insert the large stabilizing ring 16 connected to one end of the U-shaped pipe 8 into the inner wall of the steel pipe 4, slidably connect the sleeve 17 with the connecting block 15 and use a pin 18 for positioning. The other end of the U-shaped pipe 8 is slidably connected to the fixed collar 19 on the inner wall of the waterproof shell 5. At the same time, connect the U-shaped pipe 8 with the water suction pipe 20 through the threaded connection cap 21.

[0035] Then start the water pump 7. The water pump 7 pumps the paint in the water storage cavity 6 into the U-shaped pipe 8 and sprays it out from the flat nozzle 23 onto the outer wall of the steel pipe 4. Then start the drive motor 3. The drive motor 3 drives the rotation 9 to rotate, thereby driving the clamping plate 13 to rotate. The clamping plate 13 drives the steel pipe 4 to rotate, uniformly spraying the inner and outer walls of the steel pipe 4, so that there is no need for the operator to change the surface, the switching process is no longer strenuous, and it is more time-saving and labor-saving, greatly improving the work efficiency.

[0036] The above is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution of the present invention and its inventive concept, makes equivalent substitutions or changes, and should be covered within the protection scope of the present invention.

Claims

1. A spraying device for processing plastic-coated steel pipes, comprising a base plate (1) placed on the ground, characterized in that: The top end of the bottom plate (1) is fixedly connected to a support frame (2), the top end of the support frame (2) is fixedly connected to a drive motor (3), the drive motor (3) is connected to a steel pipe (4) via a clamping rotation structure, the top end of the bottom plate (1) is fixedly connected to a waterproof shell (5), the bottom end of the inner wall of the bottom plate (1) is provided with a water storage cavity (6), the bottom end of the inner wall of the water storage cavity (6) is fixedly connected to a water pump (7), and the water pump (7) is connected to a U-shaped pipe (8) via a circulation structure.

2. A spraying device for plastic-coated steel pipe processing according to claim 1, characterized in that: The clamping and rotating structure comprises a rotating block (9), a slide groove (10), a bidirectional lead screw (11), a stabilizing column (12), a clamping plate (13), a rotating block (14), a connecting block (15), a large stabilizing ring (16), a sleeve (17), and a latch (18); the rotating block (9) is rotatably connected to the outer wall of the waterproof shell (5); the slide groove (10) is arranged on the outer wall of the rotating block (9); the bidirectional lead screw (11) is rotatably connected to the inner wall of the slide groove (10); the stabilizing column (12) is slidably connected to the inner wall of the slide groove (10); and the clamping plate (13) is slidably connected to the inner wall of the slide groove (10).

3. A spraying device for processing plastic-coated steel pipes according to claim 2, characterized in that: The rotating block (14) is rotatably connected to the top of the bottom plate (1) via a hinge, the connecting block (15) is rotatably connected to the inner wall of the rotating block (14), the large stabilizing ring (16) is slidably connected to the inner wall of the steel pipe (4), the sleeve (17) is fixedly connected to the outer wall of the large stabilizing ring (16), and the latch (18) is slidably connected to the sleeve (17) and the connecting block (15), respectively.

4. A spraying device for plastic-coated steel pipe processing according to claim 3, characterized in that: The outward end of the rotating block (9) is fixedly connected to the output end of the driving motor (3), the clamping plate (13) is threadedly connected to the bidirectional lead screw (11), the clamping plate (13) is slidably connected to the stabilizing column (12), the outer wall of the clamping plate (13) abuts against the inner wall of the steel pipe (4), and the sleeve (17) is slidably connected to the connecting block (15).

5. The spraying device for plastic-coated steel pipe processing according to claim 1 is characterized in that: The circulation structure comprises uniformly distributed fixing collars (19), a water extraction pipe (20), a threaded connection cap (21), an external water injection pipe (22), and a flat nozzle (23); the fixing collar (19) is fixedly connected to the inner wall of the waterproof shell (5); one end of the water extraction pipe (20) is fixedly connected to the water pump (7); the external water injection pipe (22) is connected to the water storage chamber (6); and the flat nozzle (23) is threadedly connected to the outer wall of the U-shaped pipe (8).

6. A spraying device for processing plastic-coated steel pipes according to claim 5, characterized in that: The fixing collar (19) is slidably connected to the outer wall of one end of the U-shaped tube (8), the other end of the water pumping pipe (20) is connected to the U-shaped tube (8) via a threaded connection cap (21), and the flat nozzle (23) is arranged on the inner end of the outer wall of the U-shaped tube (8).

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