A coating device for galvanized pipe processing

Abstract

This utility model relates to the field of galvanized pipe processing technology and discloses a coating device for galvanized pipe processing, including an outer ring and an inner ring. Both the outer and inner rings are equipped with positioning mechanisms that cooperate with the galvanized pipe. An extension post is provided on one side of each of the outer and inner rings. The advantages of this utility model compared to existing technologies are that by setting the outer ring, inner ring, and positioning mechanism, the outer and inner rings are respectively positioned on the outer and inner surfaces of the galvanized pipe. By setting the extension post, sleeve, annular tube, and spray nozzle on the outer and inner rings, the outer and inner surfaces of the galvanized pipe can be sprayed. By setting the driving mechanism, the inner ring moves while the outer ring moves, allowing for spraying of both the inner and outer surfaces of the galvanized pipe at once, saving time and increasing coating efficiency.

Description

Technical Field

[0001] This utility model relates to the field of galvanized pipe processing technology, specifically to a coating device for galvanized pipe processing. Background Technology

[0002] Galvanized pipe, also known as galvanized steel pipe, is a type of steel pipe that has been coated with a layer of zinc on the surface of ordinary steel pipe (carbon steel) to achieve the purpose of rust and corrosion prevention.

[0003] In the process of galvanizing pipe processing, in order to improve the corrosion resistance of galvanized pipe, passivation treatment is generally carried out on the galvanized pipe, which is to coat it with a passivating agent. Generally, it is necessary to spray the outer and inner surfaces of the galvanized pipe. Most of the existing coating equipment can only spray one side at a time. When it is necessary to spray the outer and inner surfaces, it is necessary to spray twice, once for the outer surface and once for the inner surface, which is quite troublesome and has low coating efficiency. Utility Model Content

[0004] (a) Technical problems to be solved

[0005] The technical problem that this invention aims to solve is that most existing coating devices can only spray one side. When it is necessary to spray the outer and inner surfaces, it is necessary to spray back and forth twice, which is quite troublesome and has low coating efficiency.

[0006] (II) Technical Solution

[0007] To solve the above-mentioned technical problems, the technical solution provided by this utility model is as follows: a coating device for galvanized pipe processing, comprising an outer ring and an inner ring, both the outer ring and the inner ring being provided with positioning mechanisms that cooperate with the galvanized pipe, an extension column being provided on one side of the outer ring and the inner ring, a ring being provided on the extension column, a sleeve being provided on the ring, a circular tube being fixedly provided on the inner wall of the sleeve, a plurality of nozzles being provided on the circular tube, a liquid inlet pipe being provided on one side of the circular tube, and a driving mechanism for the movement of the outer ring to drive the movement of the inner ring being provided on the outer ring and the inner ring.

[0008] As an improvement, the positioning mechanism includes a pin that is movably inserted into the outer ring and the inner ring. A spring is provided between the pin and the inner wall of the outer ring, and a spring is provided between the pin and the outer wall of the inner ring. A U-shaped plate is provided at one end of the pin, and a guide wheel is rotatably provided on the U-shaped plate.

[0009] As an improvement, the driving mechanism includes an outer ring and an extension plate on one side of the inner ring. A screw is threadedly connected to the extension plate. A magnetic block is provided at the bottom end of the screw on the outer ring, and a magnetic block is provided at the top end of the screw on the inner ring.

[0010] As an improvement, four extension plates are arranged on both the outer and inner rings.

[0011] As an improvement, four positioning mechanisms are arranged in both the outer and inner rings.

[0012] As an improvement, a limiting post is provided at one end of the insertion post.

[0013] As an improvement, a traction ring is provided on one side of the outer ring.

[0014] (III) Beneficial Effects

[0015] The advantages of this utility model compared with the prior art are as follows:

[0016] By setting an outer ring, an inner ring, and a positioning mechanism, the outer ring and the inner ring are respectively positioned on the outer and inner surfaces of the galvanized pipe. By setting extension columns, sleeves, annular tubes, and nozzles on the outer and inner rings, the outer and inner surfaces of the galvanized pipe can be sprayed. By setting a driving mechanism, the inner ring moves while the outer ring moves, so that both the inner and outer surfaces of the galvanized pipe can be sprayed at once, saving time and achieving high coating efficiency. Attached Figure Description

[0017] Figure 1 This is a perspective view of a coating device for galvanized pipe processing according to this utility model.

[0018] Figure 2 This is an exploded view of a coating device for galvanized pipe processing according to this utility model.

[0019] Figure 3 This is a front view of a coating device for galvanized pipe processing according to this utility model.

[0020] Figure 4 This utility model relates to a coating device for galvanized pipe processing. Figure 4 The sectional view corresponding to the section line at point AA.

[0021] Figure 5 This is an enlarged view of section A of a coating device for galvanized pipe processing according to this utility model.

[0022] Figure 6 This is a perspective view of a coating device for galvanized pipe processing, including a circular tube and its external connectors.

[0023] As shown in the figure: 1. Outer ring; 2. Inner ring; 3. Positioning mechanism; 4. Extension column; 5. Ring; 6. Sleeve; 7. Circular tube; 8. Nozzle; 9. Liquid inlet pipe; 10. Drive mechanism; 11. Insert column; 12. Spring 1; 13. Spring 2; 14. U-shaped plate; 15. Guide wheel; 16. Extension plate; 17. Screw; 18. Magnetic block 1; 19. Magnetic block 2; 20. Limiting column; 21. Traction ring. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0025] As per the instructions Figures 1 to 4 As shown, a coating device for galvanized pipe processing includes an outer ring 1 and an inner ring 2. Both the outer ring 1 and the inner ring 2 are equipped with positioning mechanisms 3 that cooperate with the galvanized pipe. Four positioning mechanisms 3 are arranged on both the outer ring 1 and the inner ring 2. An extension column 4 is provided on one side of the outer ring 1 and the inner ring 2. A ring 5 is provided on the extension column 4. A sleeve 6 is provided on the ring 5. A ring tube 7 is fixedly provided on the inner wall of the sleeve 6. Multiple nozzles 8 are provided on the ring tube 7. A liquid inlet pipe 9 is provided on one side of the ring tube 7. A driving mechanism 10 is provided on the outer ring 1 and the inner ring 2 to move the inner ring 2 by moving the outer ring 1. A traction ring 21 is provided on one side of the outer ring 1.

[0026] First, the galvanized pipe to be coated is hoisted. Then, the outer ring 1 is placed on the galvanized pipe, so that the galvanized pipe is located inside the outer ring 1. At this time, the positioning mechanism 3 positions the outer ring 1, so that the axis of the galvanized pipe coincides with the center of the outer ring 1. Then, the galvanized pipe is placed on the support frame, ensuring that the outer ring 1 is located between the two support frames. Then, the inner ring 2 is placed inside the galvanized pipe in the same manner. The positioning mechanism 3 makes the center of the inner ring 2 coincide with the axis of the galvanized pipe. Then, it is connected to the external pulling device through the traction ring 21. Then, the drive mechanism 10 is adjusted so that the movement of the outer ring 1 can drive the movement of the inner ring 2. Then, the liquid inlet pipe 9 is connected to the external conveying device. The external delivery pipe is a flexible hose of sufficient length. Then, the pulling device is activated, which moves the outer ring 1. The outer ring 1 moves on the outer surface of the galvanized pipe. At the same time, the paint enters the ring pipe 7 through the liquid inlet pipe 9 and is then sprayed out from the nozzle 8, so that it is evenly coated on the surface of the galvanized pipe. Meanwhile, the nozzle 8 on the inner ring 2 sprays paint onto the inner surface of the galvanized pipe. Under the action of the drive mechanism 10, it moves with the outer ring 1, thereby spraying the entire galvanized pipe. After the spraying is completed, the remaining galvanized pipe outside the support frame can be sprayed manually. Then, the galvanized pipe is lifted, and the outer ring 1 and inner ring 2 are removed.

[0027] As per the instructions Figures 2 to 6As shown, the positioning mechanism 3 includes inserts 11 that are movably inserted into the outer ring 1 and the inner ring 2. A spring 12 is provided between the insert 11 and the inner wall of the outer ring 1, and a spring 13 is provided between the insert 11 and the outer wall of the inner ring 2. A U-shaped plate 14 is provided at one end of the insert 11, and a guide wheel 15 is rotatably mounted on the U-shaped plate 14. A limiting post 20 is provided at one end of the insert 11. When the outer ring 1 is placed on the galvanized pipe, the four inserts 11 are first moved to guide the… When wheel 15 moves upward, spring 12 is compressed, and then the galvanized pipe is placed inside the outer ring 1. Then, the four inserts 11 are released, and spring 12 pushes the inserts 11 downward, so that the guide wheel 15 contacts the galvanized pipe. The inner ring 2 works in the same way, except that the inserts 11 are pushed downward, spring 2 is compressed, and then the inner ring 2 is placed inside the galvanized pipe. Then, the inserts 11 are released, and the guide wheel 15 abuts against the inner wall of the galvanized pipe. When moving, the guide wheel 15 rotates on the galvanized pipe and drives the outer ring 1 to move.

[0028] The driving mechanism 10 includes an extension plate 16 on one side of the outer ring 1 and the inner ring 2. A screw 17 is threaded onto the extension plate 16. The bottom end of the screw 17 on the outer ring 1 is provided with a magnetic block 18, and the top end of the screw 17 on the inner ring 2 is provided with a magnetic block 19. Four extension plates 16 are arranged on both the outer ring 1 and the inner ring 2. In order to enable the outer ring 1 to move while driving the inner ring 2, the extension plate 16, screw 17, magnetic block 18 and magnetic block 19 are arranged. By rotating the screw 17, the magnetic block 18 on the outer ring 1 and the magnetic block 19 on the inner ring 2 are brought closer to each other. They are brought as close as possible without affecting the movement of the outer ring 1 and the inner ring 2. The outer ring 1 and the inner ring 2 are fixed relative to each other by magnetic attraction, so that the outer ring 1 drives the inner ring 2 to slide while sliding.

[0029] In practical use, the galvanized pipe is hoisted, and then the outer ring 1 is placed on the galvanized pipe through the positioning mechanism 3. The galvanized pipe is then placed on two support frames, and the inner ring 2 is placed inside the galvanized pipe through the positioning mechanism 3. Then, the liquid inlet pipe 9 is connected to an external delivery pipe, and the drive mechanism 10 is adjusted so that the movement of the outer ring 1 can drive the movement of the inner ring 2. Then, the paint is sprayed from the nozzle 8 and evenly coated on the inner and outer surfaces of the galvanized pipe. Then, the outer ring 1 is pulled, and the outer ring 1 drives the inner ring 2 to move, thereby coating the entire galvanized pipe. After the coating is completed, the remaining uncoated parts outside the support frames can be manually sprayed. Then, the galvanized pipe is hoisted, and the outer ring 1 and inner ring are removed to complete the coating.

[0030] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0031] 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.

[0032] The present invention and its embodiments have been described above. This description is not restrictive, and the accompanying drawings are only one embodiment of the present invention; the actual structure is not limited thereto. In conclusion, if those skilled in the art are inspired by this description and design similar structures and embodiments without departing from the inventive spirit of the present invention, such designs should fall within the protection scope of the present invention.

Claims

1. A coating apparatus for galvanized pipe processing, comprising an outer ring (1) and an inner ring (2), characterized in that: Both the outer ring (1) and the inner ring (2) are provided with positioning mechanisms (3) that cooperate with galvanized pipes. An extension column (4) is provided on one side of the outer ring (1) and the inner ring (2). A ring (5) is provided on the extension column (4). A sleeve (6) is provided on the ring (5). A ring tube (7) is fixedly provided on the inner wall of the sleeve (6). Multiple nozzles (8) are provided on the ring tube (7). An inlet pipe (9) is provided on one side of the ring tube (7). A driving mechanism (10) is provided on the outer ring (1) and the inner ring (2) for the movement of the inner ring (2) to drive the movement of the outer ring (1).

2. The coating apparatus for galvanized pipe processing according to claim 1, characterized in that: The positioning mechanism (3) includes a pin (11) that is movably inserted into the outer ring (1) and the inner ring (2). A spring (12) is provided between the pin (11) and the inner wall of the outer ring (1), and a spring (13) is provided between the pin (11) and the outer wall of the inner ring (2). A U-shaped plate (14) is provided at one end of the pin (11), and a guide wheel (15) is rotatably provided on the U-shaped plate (14).

3. The coating apparatus for galvanized pipe processing according to claim 1, characterized in that: The driving mechanism (10) includes an outer ring (1) and an extension plate (16) on one side of an inner ring (2). A screw (17) is threaded onto the extension plate (16). A magnetic block (18) is provided at the bottom of the screw (17) on the outer ring (1), and a magnetic block (19) is provided at the top of the screw (17) on the inner ring (2).

4. The coating apparatus for galvanized pipe processing according to claim 3, characterized in that: Four extension plates (16) are arranged on both the outer ring (1) and the inner ring (2).

5. A coating apparatus for galvanized pipe processing according to claim 2, characterized in that: The positioning mechanism (3) is arranged in four positions on both the outer ring (1) and the inner ring (2).

6. The coating apparatus for galvanized pipe processing according to claim 2, characterized in that: One end of the insertion post (11) is provided with a limiting post (20).

7. The coating apparatus for galvanized pipe processing according to claim 1, characterized in that: A traction ring (21) is provided on one side of the outer ring (1).

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