Coating device for pipe fittings

By designing a coating device for pipe fittings, the brush strips and fixtures arranged side by side are used to simultaneously apply the inner and outer surfaces of the pipe fittings, which solves the problem of uneven coating and can only apply the inner surface, and improves the uniformity and efficiency of the coating.

CN222724716UActive Publication Date: 2025-04-08XIAMEN TUNGSTEN CO LTD
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Patent Information

Application Number
CN202420853491.3
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-04-23
Publication Date
2025-04-08
Estimated Expiration
2034-04-23

AI Technical Summary

Technical Problem

During the coating process, the existing coating device is thrown out due to centrifugal force, resulting in uneven coating. At the same time, the inner surface of the steel pipe can only be painted, and the outer surface requires additional processes.

Method used

A coating device is designed, including a first brush strip and a second brush strip arranged side by side, the first brush strip and the second brush strip are respectively used to paint the inner and outer surfaces of the pipe fittings, and the pipe fittings are clamped and driven to rotate them to ensure uniform distribution of the paint.

Benefits of technology

The simultaneous coating of the inner and outer surfaces of the pipe fittings is achieved, avoiding the uneven problem caused by the paint throwing out, and improving the uniformity of the coating.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to a coating device for pipe fittings, which comprises a coating assembly and a clamp. The coating assembly comprises a first brush bar and a second brush bar arranged side by side at intervals, the first brush bar having a first side facing the second brush bar, a first channel arranged in the first brush bar, and the first channel having a first outlet located on the first side, a first brush arranged along the length direction of the first brush bar and covering the first outlet is arranged on the first side, the second brush bar having a second side facing the first brush bar, a second channel arranged in the second brush bar, and the second channel having a second outlet located on the second side, and a second brush arranged along the length direction of the second brush bar and covering the second outlet is arranged on the second side. The clamp is used to clamp the pipe fitting, and insert the pipe wall of the pipe fitting between the first brush and the second brush, and the clamp is also used to drive the pipe fitting to rotate, the first brush and the second brush can simultaneously coat the inner surface and the outer surface of the pipe fitting, and ensure the uniformity of the coating.
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Description

Technical Field

[0001] The utility model relates to the field of coating devices, in particular to a coating device for pipe fittings. Background Art

[0002] A Chinese patent with announcement number CN112076951B provides an auxiliary device for anti-corrosion coating inside a small-diameter steel pipe and a method of use, which includes a rotating shaft and a bracket. A through hole is opened in the middle of the bracket, and the rotating shaft passes through the through hole. A handle is fixedly installed at one end of the rotating shaft, and a telescopic connecting rod is fixedly installed at the other end. A roller brush is rotatably installed at the end of the telescopic connecting rod away from the rotating shaft. The rotating axis of the roller brush is parallel to the steel pipe, and a paint storage cavity is provided inside the roller brush. Telescopic support rods are provided at both ends of the bracket, and a steel pipe clamp is installed at the end of the telescopic support rod away from the bracket.

[0003] When in use, the steel pipe is clamped by the steel pipe clamp, and the roller brush is inserted into the steel pipe. The handle drives the rotating shaft to rotate, so that the roller brush can revolve around the rotating shaft, and the roller brush can also rotate around its own rotating shaft, thereby coating the inner surface of the steel pipe. In theory, the coating area of ​​the roller brush is the area where the roller brush is in contact with the inner wall of the steel pipe, but centrifugal force is generated during the rotation of the roller brush, and the paint on the roller brush will be thrown out and drip onto the area outside the contact surface between the roller brush and the inner wall of the steel pipe. These dripping paints solidify on the inner wall of the steel pipe to form multiple small bumps, resulting in uneven coating. In addition, the device can only paint the inner surface of the steel pipe. If the outer surface of the steel pipe needs to be painted, additional processes need to be added. Utility Model Content

[0004] The utility model aims to provide a coating device for pipe fittings, which can improve the uniformity of the coating and can coat the inner surface and the outer surface of the pipe fittings at the same time.

[0005] In order to solve the above technical problems, the utility model adopts the following technical solutions.

[0006] The utility model provides a coating device for pipe fittings, which comprises: a coating assembly, comprising a first brush strip and a second brush strip arranged side by side at intervals, the first brush strip having a first side facing the second brush strip, a first channel arranged in the first brush strip, and the first channel having a first outlet located on the first side, a first brush arranged along the length direction of the first brush strip and covering the first outlet on the first side, the second brush strip having a second side facing the first brush strip, a second channel arranged in the second brush strip, and the second channel having a second outlet located on the second side, and a second brush arranged along the length direction of the second brush strip and covering the second outlet on the second side;

[0007] The clamp is used for clamping the pipe fitting and inserting the pipe wall of the pipe fitting between the first brush and the second brush. The clamp is also used for driving the pipe fitting to rotate.

[0008] In some embodiments of the present application, a plurality of first outlets are provided and are spaced apart along the length direction of the first brush strip;

[0009] A plurality of the second outlets are provided and are spaced apart along the length direction of the second brush strip.

[0010] In some embodiments of the present application, a plurality of first discharge pipes are protrudingly provided on the first side surface, and the plurality of first discharge pipes are spaced apart along the length direction of the first brush strip, and the first outlet is provided in the first discharge pipe;

[0011] A plurality of second discharge pipes are protrudingly provided on the second side surface, and the plurality of second discharge pipes are arranged at intervals along the length direction of the second brush strip, and the second outlet is provided in the second discharge pipe.

[0012] In some embodiments of the present application, the coating component further includes an adjustment component;

[0013] The adjusting component moves the first brush bar and the second brush bar closer to each other to reduce the distance between the first brush bar and the second brush bar, or moves the first brush bar and the second brush bar away from each other to increase the distance between the first brush bar and the second brush bar.

[0014] In some embodiments of the present application, the coating assembly further includes a mounting frame;

[0015] A material storage trough is provided in the mounting frame;

[0016] The first brush bar and the second brush bar are both connected to the mounting frame, and the first channel and the second channel are both connected to the material storage trough.

[0017] In some embodiments of the present application, the coating device for pipe fittings further comprises an extruder;

[0018] The extruder is used to control the discharge amount and discharge speed of the storage tank.

[0019] In some embodiments of the present application, the coating device for pipe fittings further includes a base;

[0020] At least one of the coating assembly and the clamp is movably connected to the base, and the moving direction is parallel to the first brush bar and the second brush bar.

[0021] In some embodiments of the present application, a limiting structure is provided on the base;

[0022] The limiting structure is arranged between the clamp and the coating assembly to limit the moving stroke.

[0023] In some embodiments of the present application, the base is provided with a guide rail extending along the moving direction, and the guide rail is used to guide the moving trajectory.

[0024] In some embodiments of the present application, the clamp includes a bracket, a driving member and a clamp;

[0025] The driving member is connected to the bracket and drivingly connected to the chuck, and the driving member drives the chuck to rotate;

[0026] The chuck is used for clamping the pipe fitting.

[0027] It can be seen from the above technical solutions that the embodiments of the utility model have at least the following advantages and positive effects:

[0028] In the coating device of the embodiment of the utility model, the pipe to be coated with paint is clamped on the clamp, and the pipe wall of the pipe is inserted between the first brush and the second brush, the first brush contacts the inner surface of the pipe wall, and the second brush contacts the outer surface of the pipe wall.

[0029] The first channel and the second channel can be filled with flowing paint, the paint in the first channel flows out through the first outlet to soak the first brush, and the paint in the second channel flows out through the second outlet to soak the second brush. The fixture drives the pipe to rotate, so that the first brush and the second brush can simultaneously coat the inner surface and the outer surface of the pipe.

[0030] During the coating process, the first brush is fixed on the first brush strip, and the second brush is fixed on the second brush strip. The positions of the first brush and the second brush are fixed, and the paint on the first brush and the second brush will not be thrown out and drip onto areas other than the contact surface of the pipe being coated by the first brush and the second brush, thereby ensuring that the coating on the surface of the pipe is evenly coated on the contact surface between the first brush and the second surface, thereby improving the uniformity of the coating. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] The various objects, features and advantages of the present invention will become more apparent by considering the following detailed description of the preferred embodiments of the present invention in conjunction with the accompanying drawings. The accompanying drawings are only exemplary illustrations of the present invention and are not necessarily drawn to scale. In the accompanying drawings, the same reference numerals always represent the same or similar parts. Among them:

[0032] Figure 1 is a schematic structural diagram of a coating device for a pipe according to an exemplary embodiment.

[0033] Figure 2 yes Figure 1 sectional view of .

[0034] Figure 3 yes Figure 2 Schematic diagram of the structure of the pipe fittings and coating components.

[0035] The description of the accompanying drawings is as follows: 100, pipe fitting; 1, coating assembly; 11, first brush bar; 111, first side; 112, first channel; 1121, first outlet; 1122, first discharge pipe; 12, second brush bar; 121, second side; 122, second channel; 1221, second outlet; 1222, second discharge pipe; 13, mounting bracket; 131, storage trough; 2, clamp; 21, bracket; 22, drive member; 23, chuck; 3, base; 31, guide rail. DETAILED DESCRIPTION

[0036] Although the present invention can be easily embodied as embodiments of different forms, only some of the specific embodiments are shown in the drawings and described in detail in this specification. It should be understood that this description should be regarded as an exemplary description of the principles of the present invention and is not intended to limit the present invention to that described herein.

[0037] Thus, a feature indicated in this specification will be used to illustrate one of the features of an embodiment of the utility model, rather than implying that each embodiment of the utility model must have the described feature. In addition, it should be noted that this specification describes many features. Although some features can be combined together to illustrate possible system designs, these features can also be used in other combinations that are not explicitly described. Thus, unless otherwise stated, the described combinations are not intended to be limiting.

[0038] In the embodiments shown in the drawings, the indications of directions (such as up, down, left, right, front and back) used to explain the structure and movement of various elements of the utility model are not absolute but relative. These descriptions are appropriate when these elements are in the positions shown in the drawings. If the descriptions of the positions of these elements change, the indications of these directions also change accordingly.

[0039] See also Figures 1 to 3 , Figure 1 is a schematic structural diagram of a coating device for a pipe according to an exemplary embodiment. Figure 2 yes Figure 1 sectional view of . Figure 3 yes Figure 2 The structural diagram of the pipe 100 and the coating assembly 1 in FIG. 1 is a schematic diagram of the structural diagram of the pipe 100 and the coating assembly 1 in FIG.

[0040] The coating assembly 1 includes a first brush strip 11 and a second brush strip 12 which are arranged side by side and spaced apart from each other. The first brush strip 11 has a first side surface 111 facing the second brush strip 12. A first channel 112 is provided in the first brush strip 11, and the first channel 112 has a first outlet 1121 located on the first side surface 111. A first brush which is arranged along the length direction of the first brush strip 11 and covers the first outlet 1121 is provided on the first side surface 111. The second brush strip 12 has a second side surface 121 facing the first brush strip 11. A second channel 122 is provided in the second brush strip 12, and the second channel 122 has a second outlet 1221 located on the second side surface 121. A second brush which is arranged along the length direction of the second brush strip 12 and covers the second outlet 1221 is provided on the second side surface 121.

[0041] The clamp 2 is used to clamp the pipe 100 and insert the pipe wall of the pipe 100 between the first brush and the second brush. The clamp 2 is also used to drive the pipe 100 to rotate.

[0042] Through the above-mentioned structural design, the coating device for pipe fittings is used as follows: the pipe fitting 100 to be coated with paint is clamped on the fixture 2, and the tube wall of the pipe fitting 100 is inserted between the first brush and the second brush, the first brush contacts the inner surface of the tube wall, and the second brush contacts the outer surface of the tube wall.

[0043] The first channel 112 and the second channel 122 can be filled with flowing paint, the paint in the first channel 112 flows out through the first outlet 1121 to soak the first brush, and the paint in the second channel 122 flows out through the second outlet 1221 to soak the second brush. The fixture 2 drives the pipe 100 to rotate, so that the first brush and the second brush can simultaneously coat the inner surface and the outer surface of the pipe 100.

[0044] During the coating process, the first brush is fixed on the first brush strip 11, and the second brush is fixed on the second brush strip 12. The positions of the first brush and the second brush are fixed, and the paint on the first brush and the second brush will not be thrown out and drip onto the area other than the contact surface of the pipe 100 being coated by the first brush and the second brush, thereby ensuring that the coating on the surface of the pipe 100 is evenly coated on the contact surface between the first brush and the second surface, thereby improving the uniformity of the coating.

[0045] It is understandable that when the pipe 100 is clamped on the fixture 2, the central axis of the pipe 100 should be parallel to the first bristles and the second bristles as much as possible, and the extension direction of the first bristles and the second bristles are both located in the radial direction of the pipe 100, so as to ensure that the first bristles and the second bristles keep in contact with the inner surface and the outer surface of the pipe 100 during the rotation of the pipe 100. The extension direction of the first bristles is perpendicular to the direction of the first side surface 111 and the arrangement direction of the first bristles, and the extension direction of the second bristles is perpendicular to the direction of the second side surface 121 and the arrangement direction of the second bristles.

[0046] The coating device for pipe fittings further comprises a base 3, and at least one of the coating assembly 1 and the fixture 2 is movably connected to the base 3, and the moving direction is parallel to the first brush strip 11 and the second brush strip 12. In this embodiment, both the coating assembly 1 and the fixture 2 are movably connected to the base 3. In other embodiments, the coating assembly 1 is movably connected to the base 3, and the fixture 2 is fixedly connected to the base 3. Alternatively, the coating assembly 1 is fixedly connected to the base 3, and the fixture 2 is movably connected to the base 3.

[0047] By moving the coating component 1 and the fixture 2 simultaneously or moving one of the coating component 1 and the fixture 2, the coating component 1 and the fixture 2 can be brought closer to each other to reduce the distance between the coating component 1 and the fixture 2, or the coating component 1 and the fixture 2 can be moved away from each other to increase the distance between the coating component 1 and the fixture 2.

[0048] Before the fixture 2 clamps the pipe 100, the distance between the coating assembly 1 and the fixture 2 can be increased to facilitate the clamping of the pipe 100 on the fixture 2. When the fixture 2 clamps the pipe 100 and needs to be coated, the distance between the coating assembly 1 and the fixture 2 can be reduced to allow the pipe wall of the pipe 100 to be inserted between the first brush and the second brush. After the coating is completed, the distance between the coating assembly 1 and the fixture 2 can be increased to allow the pipe wall of the pipe 100 to withdraw from the first brush and the second brush to facilitate the removal of the pipe 100 from the fixture 2.

[0049] A limiting structure is provided on the base 3, and the limiting structure is provided between the clamp 2 and the coating component 1 to limit the moving stroke. In the process of moving the coating component 1 and / or the clamp 2 to reduce the distance between the coating component 1 and the clamp 2, the limiting structure is used to limit the coating component 1 and / or the clamp 2, so that the position of the coating component 1 and / or the clamp 2 after moving is just at the position where the pipe wall of the pipe 100 is inserted between the first brush and the second brush, and the pipe 100 will not collide. The limiting structure can be a bump on the base 3.

[0050] A guide rail 31 extending along the moving direction is provided on the base 3 , and the guide rail 31 is used to guide the moving trajectory to ensure that the moving trajectory of the coating component 1 and / or the fixture 2 is more stable.

[0051] The coating assembly 1 further includes an adjusting assembly. The adjusting assembly brings the first brush strip 11 and the second brush strip 12 closer to each other to reduce the distance between the first brush strip 11 and the second brush strip 12, or moves the first brush strip 11 and the second brush strip 12 away from each other to increase the distance between the first brush strip 11 and the second brush strip 12. By increasing the distance between the first brush strip 11 and the second brush strip 12, it is convenient for the pipe wall of the pipe fitting 100 to be inserted between the first brush and the second brush, and then by reducing the distance between the first brush strip 11 and the second brush strip 12, the first brush and the second brush are brought into contact with the surface of the pipe wall. The adjusting assembly is, for example, but not limited to, a driving form of a motor and a gear rack.

[0052] The coating assembly 1 further includes a mounting frame 13, in which a material storage tank 131 is disposed, the first brush strip 11 and the second brush strip 12 are both connected to the mounting frame 13, and the first channel 112 and the second channel 122 are both connected to the material storage tank 131. The material storage tank 131 can store paint and transport paint to the first channel 112 and the second channel 122. In this embodiment, the mounting frame 13 is movably connected to the guide rail 31.

[0053] The coating device for the pipe fittings also includes an extruder. The extruder is used to control the discharge amount and discharge speed of the storage tank 131. By quantitatively controlling the discharge amount and discharge speed of the extruder, it can be ensured that the amount of coating used for each coating is constant, thereby ensuring that the coating thickness on the surface of each pipe fitting 100 is uniform.

[0054] There are multiple first outlets 1121, which are arranged at intervals along the length direction of the first brush strip 11. The paint flowing out of the multiple first outlets 1121 infiltrates the first brush at different positions of the first brush, so that the paint on the first brush is evenly distributed, thereby improving the uniformity of the coating. There are multiple second outlets 1221, which are arranged at intervals along the length direction of the second brush strip 12. The paint flowing out of the multiple second outlets 1221 infiltrates the second brush at different positions of the second brush, so that the paint on the second brush is evenly distributed, thereby improving the uniformity of the coating.

[0055] A plurality of first discharge pipes 1122 are protrudingly provided on the first side surface 111, and the plurality of first discharge pipes 1122 are arranged at intervals along the length direction of the first brush strip 11, and a first outlet 1121 is provided in the first discharge pipe 1122. The protruding first discharge pipe 1122 can extend into the first brush, which is more conducive to the paint flowing out of the first channel 112 to infiltrate the first brush.

[0056] A plurality of second discharge pipes 1222 are protrudingly provided on the second side surface 121, and the plurality of second discharge pipes 1222 are arranged at intervals along the length direction of the second brush strip 12, and a second outlet 1221 is provided in the second discharge pipe 1222. The protruding second discharge pipe 1222 can extend into the second brush, which is more conducive to the paint flowing out of the second channel 122 to infiltrate the second brush.

[0057] The clamp 2 includes a bracket 21, a driving member 22 and a chuck 23. The driving member 22 is connected to the bracket 21 and is driven to be connected to the chuck 23. The driving member 22 drives the chuck 23 to rotate. The chuck 23 is used to clamp the pipe 100. The driving member 22 can be a motor. The motor drives the pipe 100 to rotate at a constant speed, which can improve the uniformity of the coating. In this embodiment, the bracket 21 is movably connected to the guide rail 31. The chuck 23 is, for example, but not limited to, a three-jaw chuck.

[0058] Although the utility model has been described with reference to several typical embodiments, it should be understood that the terms used are illustrative and exemplary, rather than restrictive. Since the utility model can be implemented in a variety of forms without departing from the spirit or essence of the utility model, it should be understood that the above-mentioned embodiments are not limited to any of the aforementioned details, but should be widely interpreted within the spirit and scope defined by the attached claims, so all changes and modifications falling within the scope of the claims or their equivalents should be covered by the attached claims.

Claims

1. A coating device for pipe fittings, characterized in that: include: A coating assembly, comprising a first brush bar and a second brush bar arranged side by side at intervals, the first brush bar having a first side facing the second brush bar, a first channel being provided in the first brush bar, and the first channel having a first outlet located on the first side, a first brush being arranged along the length direction of the first brush bar and covering the first outlet being provided on the first side, the second brush bar having a second side facing the first brush bar, a second channel being provided in the second brush bar, and the second channel having a second outlet located on the second side, and a second brush being arranged along the length direction of the second brush bar and covering the second outlet being provided on the second side; The clamp is used for clamping the pipe fitting and inserting the pipe wall of the pipe fitting between the first brush and the second brush. The clamp is also used for driving the pipe fitting to rotate.

2. The coating device for pipes according to claim 1, characterized in that: The first outlets are provided in plurality and are arranged at intervals along the length direction of the first brush strip; A plurality of the second outlets are provided and are spaced apart along the length direction of the second brush strip.

3. The coating device for pipes according to claim 2, characterized in that: A plurality of first discharge pipes are protrudingly provided on the first side surface, and the plurality of first discharge pipes are spaced apart along the length direction of the first brush strip, and the first outlet is provided in the first discharge pipe; A plurality of second discharge pipes are protrudingly provided on the second side surface, and the plurality of second discharge pipes are arranged at intervals along the length direction of the second brush strip, and the second outlet is provided in the second discharge pipe.

4. The coating device for pipes according to claim 1, characterized in that: The coating assembly also includes an adjustment assembly; The adjusting component moves the first brush bar and the second brush bar closer to each other to reduce the distance between the first brush bar and the second brush bar, or moves the first brush bar and the second brush bar away from each other to increase the distance between the first brush bar and the second brush bar.

5. The coating device for pipes according to claim 1, characterized in that: The coating assembly also includes a mounting frame; A material storage trough is provided in the mounting frame; The first brush bar and the second brush bar are both connected to the mounting frame, and the first channel and the second channel are both connected to the material storage trough.

6. The coating device for pipes according to claim 5, characterized in that: The coating device for pipe fittings also includes an extruder; The extruder is used to control the discharge amount and discharge speed of the storage tank.

7. The coating device for pipes according to claim 1, characterized in that: The coating device for pipe fittings also includes a base; At least one of the coating assembly and the clamp is movably connected to the base, and the moving direction is parallel to the first brush bar and the second brush bar.

8. The coating device for pipes according to claim 7, characterized in that: The base is provided with a limiting structure; The limiting structure is arranged between the clamp and the coating assembly to limit the moving stroke.

9. The coating device for pipes according to claim 7, characterized in that: The base is provided with a guide rail extending along the moving direction, and the guide rail is used to guide the moving track.

10. The coating device for pipes according to claim 1, characterized in that: The clamp comprises a bracket, a driving member and a clamp; The driving member is connected to the bracket and drivingly connected to the chuck, and the driving member drives the chuck to rotate; The chuck is used for clamping the pipe fitting.

Citation Information

Patent Citations

  • An auxiliary device for internal anti-corrosion coating of small-diameter steel pipes and its usage method

    CN112076951B