Metal pipe fitting surface painting device

The combination of positioning frame and moving plate solves the problem of paint scratches during metal pipe spraying, and improves the uniformity of paint spraying and production quality.

CN224221618UActive Publication Date: 2026-05-12MANDERUI PIPE IND (JIANGSU) CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
MANDERUI PIPE IND (JIANGSU) CO LTD
Filing Date
2025-04-15
Publication Date
2026-05-12

AI Technical Summary

Technical Problem

In the existing technology, during the spraying process of metal pipe fittings, the paint surface is easily scratched due to the contact between the rollers and auxiliary plates and the painted pipe fitting surface, which affects the paint quality.

Method used

The system employs a combination structure of a positioning frame and a movable plate. An electric telescopic rod and a drive motor drive the threaded rod, allowing the movable plate to slide within the sliding groove. This limits and fixes the pipe from the inside, preventing the outer surface from contacting the positioning components.

Benefits of technology

Ensuring uniform paint application improves the painting quality of metal pipes, avoids scratches after painting, and enhances production quality.

✦ Generated by Eureka AI based on patent content.

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  • Figure CN224221618U_ABST
    Figure CN224221618U_ABST
Patent Text Reader

Abstract

The utility model discloses a metal pipe fitting surface painting device, and relates to the technical field of painting. A metal pipe fitting surface painting device comprises a conveying table and a spraying box, the conveying table is located in the spraying box, a conveying mechanism is installed in the conveying table, a supporting plate is fixedly connected to the interior of the conveying table, the supporting plate is located in a conveying belt of the conveying mechanism, and a pipe fitting positioning structure is located on the conveying table. The pipe fitting positioning structure comprises a fixing plate, an electric telescopic rod, a supporting frame and a positioning frame, the positioning frame and the fixing plate are both fixedly connected to a conveying belt of the conveying mechanism, and through cooperation of the positioning frame and a movable plate, in the pipe fitting paint spraying process, a positioning part can limit and fix the pipe fitting from the interior of the pipe fitting; and the outer surface of the painted pipe fitting is prevented from being in contact with the positioning part, the painted surface is prevented from being scraped, the paint spraying uniformity of the surface of the pipe fitting is ensured, and then the production quality of the painted pipe fitting is improved.
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Description

Technical Field

[0001] This utility model relates to the field of painting technology, and in particular to a painting device for the surface of metal pipe fittings. Background Technology

[0002] Building materials are subjected to wind, sun, rain, wear, and corrosion over long periods, and the surface is often the first to show signs of damage. To extend the service life of building materials, surface coating is necessary. Chinese utility model patent, authorized publication number "CN222057732U", discloses a building pipe fitting spray painting machine. This machine encloses the spray painting components in a shell, making it more difficult for paint to reach the operator during spraying, thus improving the operator's working environment. Rollers, limiting grooves, and auxiliary plates are used to fix the pipe fittings, preventing them from shaking and resulting in a more uniform paint finish.

[0003] During the use of the above-mentioned technical solution, when the pipe is positioned and conveyed by the rollers and auxiliary plates, they will come into contact with the painted surface of the pipe at the same time, which can easily scratch the paint on the pipe and thus affect the production quality of the painted pipe. Therefore, we propose a metal pipe surface painting device. Utility Model Content

[0004] The purpose of this utility model is to solve at least one of the technical problems existing in the prior art, and to provide a metal pipe surface painting device that can solve the problem that when the pipe is positioned and transported by rollers and auxiliary plates, the rollers and auxiliary plates will come into contact with the painted surface of the pipe, which will easily scratch the paint on the pipe and thus affect the production quality of the painted pipe.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a metal pipe surface painting device, comprising:

[0006] The conveyor table and the spray box are located inside the spray box. The conveyor table is equipped with a conveying mechanism, and a support plate is fixedly connected inside the conveyor table. The support plate is located inside the conveyor belt of the conveying mechanism.

[0007] Pipe fitting positioning structure, located on the conveyor table;

[0008] The pipe positioning structure includes a fixed plate, an electric telescopic rod, a support frame, and a positioning frame. The positioning frame and the fixed plate are both fixedly connected to the conveyor belt of the conveying mechanism. The electric telescopic rod is fixedly installed on the side of the fixed plate away from the positioning frame. The telescopic end of the electric telescopic rod slides through the fixed plate and is fixedly connected to the support frame. Two sliding grooves are opened on the side of the positioning frame near the fixed plate. A transmission groove is opened inside the positioning frame. A drive motor is fixedly installed on the side of the positioning frame away from the fixed plate. The output end of the drive motor rotates and extends into the interior of the transmission groove and is fixedly connected to a main bevel gear.

[0009] Preferably, the pipe positioning structure further includes two threaded rods, two movable plates, and two auxiliary bevel gears. The two threaded rods are rotatably connected inside the corresponding sliding grooves. The opposite ends of the two threaded rods rotatably extend into the interior of the transmission groove and are fixedly connected to the corresponding auxiliary bevel gears. The two auxiliary bevel gears are meshed with the main bevel gears. The two movable plates are threaded onto the outer surface of the corresponding threaded rods and are slidably connected to the interior of the corresponding sliding grooves.

[0010] Preferably, an arc-shaped feeding box is fixedly connected inside the spray box, the conveyor is located inside the arc-shaped feeding box, and multiple spray nozzles are fixedly connected inside the arc-shaped feeding box, all of which are in communication with the inside of the arc-shaped feeding box.

[0011] Preferably, a paint storage tank is fixedly installed on the top of the spray box, and a conveying pump is fixedly installed on one side of the paint storage tank. The pumping end of the conveying pump is connected to the internal pipe of the paint storage tank, and the discharging end of the conveying pump is fixedly connected to a feeding pipe. The three ends of the feeding pipe away from the conveying pump are all connected to the internal pipe of the arc-shaped feeding box.

[0012] Preferably, a first protective cover is fixedly connected to the side of the fixing plate away from the support frame, the first protective cover is located outside the electric telescopic rod, a second protective cover is fixedly connected to the side of the positioning frame away from the support frame, and the drive motor is located inside the second protective cover.

[0013] Preferably, the conveying mechanism is composed of two conveying rollers, a conveyor belt, and a motor.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] 1. The metal pipe surface painting device, with the cooperation of the positioning frame and the moving plate, can limit and fix the pipe from the inside during the pipe painting process, so as to avoid the outer surface of the pipe after painting contacting the positioning component, avoid scratching the painted surface, ensure the uniformity of the pipe surface painting, and thus improve the production quality of the pipe after painting. Attached Figure Description

[0016] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0017] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0018] Figure 2 This is a schematic cross-sectional view of the spray box structure of this utility model;

[0019] Figure 3 This is a schematic cross-sectional view of the positioning frame structure of this utility model;

[0020] Figure 4 This is a schematic diagram of the positioning frame structure of this utility model.

[0021] Reference numerals: 1. Conveyor table; 2. Conveying mechanism; 3. Spraying box; 4. Paint storage box; 5. Conveying pump; 6. Positioning frame; 7. Moving plate; 8. Fixed plate; 9. Support frame; 10. First protective cover; 11. Electric telescopic rod; 12. Feeding pipe; 13. Arc-shaped feeding box; 14. Spray nozzle; 15. Support plate; 16. Main bevel gear; 17. Transmission groove; 18. Secondary bevel gear; 19. Sliding groove; 20. Threaded rod; 21. Drive motor; 22. Second protective cover. Detailed Implementation

[0022] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but they should not be construed as limiting the scope of protection of the present utility model.

[0023] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationship based on the directional or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model 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. Therefore, they should not be construed as limitations on this utility model.

[0024] In the description of this utility model, terms such as greater than, less than, and exceeding are understood to exclude the stated number, while terms such as above, below, and within are understood to include the stated number. The use of terms like "first" and "second" is merely for distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the quantity or sequence of the indicated technical features.

[0025] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.

[0026] Please see Figure 1-4 This utility model provides a technical solution: a metal pipe surface painting device, comprising:

[0027] The conveyor table 1 and the spray box 3 are located inside the spray box 3. The conveyor table 1 is equipped with a conveyor mechanism 2, which is composed of two conveyor rollers, a conveyor belt and a motor. A support plate 15 is fixedly connected inside the conveyor table 1, and the support plate 15 is located inside the conveyor belt of the conveyor mechanism 2.

[0028] Pipe positioning structure, the pipe positioning structure is located on conveyor table 1;

[0029] The pipe positioning structure includes a fixed plate 8, an electric telescopic rod 11, a support frame 9, and a positioning frame 6. The positioning frame 6 and the fixed plate 8 are both fixedly connected to the conveyor belt of the conveying mechanism 2. The electric telescopic rod 11 is fixedly installed on the side of the fixed plate 8 away from the positioning frame 6. The telescopic end of the electric telescopic rod 11 slides through the fixed plate 8 and is fixedly connected to the support frame 9. The positioning frame 6 has two sliding grooves 19 on the side near the fixed plate 8. The positioning frame 6 has a transmission groove 17 inside. The positioning frame 6 has a drive motor 21 fixedly installed on the side away from the fixed plate 8. The output end of the drive motor 21 rotates and extends into the interior of the transmission groove 17 and is fixedly connected to a main bevel gear 16.

[0030] A first protective cover 10 is fixedly connected to the side of the fixed plate 8 away from the support frame 9. The first protective cover 10 is located outside the electric telescopic rod 11. A second protective cover 22 is fixedly connected to the side of the positioning frame 6 away from the support frame 9. The drive motor 21 is located inside the second protective cover 22.

[0031] The pipe positioning structure also includes two threaded rods 20, two movable plates 7, and two auxiliary bevel gears 18. The two threaded rods 20 are rotatably connected to the interior of the corresponding sliding grooves 19. The opposite ends of the two threaded rods 20 are rotatably extended into the interior of the transmission groove 17 and fixedly connected to the corresponding auxiliary bevel gears 18. The two auxiliary bevel gears 18 are meshed with the main bevel gear 16. The two movable plates 7 are threaded onto the outer surface of the corresponding threaded rods 20 and are slidably connected to the interior of the corresponding sliding grooves 19.

[0032] An arc-shaped feeding box 13 is fixedly connected inside the spray box 3. The conveyor table 1 is located inside the arc-shaped feeding box 13. Multiple paint nozzles 14 are fixedly connected inside the arc-shaped feeding box 13. All of the multiple paint nozzles 14 are connected to the inside of the arc-shaped feeding box 13. A paint storage tank 4 is fixedly installed on the top of the spray box 3. A conveying pump 5 is fixedly installed on one side of the paint storage tank 4. The suction end of the conveying pump 5 is connected to the inside of the paint storage tank 4. The discharge end of the conveying pump 5 is fixedly connected to a feeding pipe 12. The three ends of the feeding pipe 12 away from the conveying pump 5 are connected to the inside of the arc-shaped feeding box 13.

[0033] Furthermore, when using this device, the metal pipe is placed on the positioning frame 6 driven by the conveyor belt. The electric telescopic rod 11 is activated, and the electric telescopic rod 11 pushes the support frame 9 to clamp and fix the pipe on the positioning frame 6. At the same time, the drive motor 21 is turned on, and the output end drives the main bevel gear 16 to rotate. Through the two auxiliary bevel gears 18 meshing with it, the two threaded rods 20 are driven to rotate, so that the threaded moving plate 7 slides under the limit of the corresponding sliding groove 19, thereby positioning the pipe against the inner wall of the pipe to ensure that the position of the pipe is stable during the spraying process. Subsequently, the motor of the conveying mechanism 2 is turned on, driving the conveying roller to rotate and driving the conveyor belt forward to transport the positioned pipe to the painting area in the arc-shaped loading box 13. The support plate 15 provides support for the conveyor belt to ensure a smooth conveying process.

[0034] The conveying pump 5 extracts the paint from the paint storage tank 4 and conveys it to the arc-shaped feeding box 13 through the feeding pipe 12. It is then sprayed out by the paint nozzle 14, which facilitates the painting of the pipe surface. As the conveyor belt moves, the pipe is sprayed with paint from all directions to complete the surface painting operation. The first protective cover 10 and the second protective cover 22 protect the electric telescopic rod 11 and the drive motor 21 respectively to prevent the paint from damaging them and extend the service life of the equipment.

[0035] With the cooperation of positioning frame 6 and moving plate 7, during the pipe painting process, the positioning component can limit and fix the pipe from the inside, preventing the outer surface of the pipe after painting from contacting the positioning component, avoiding scratching the painted surface, ensuring the uniformity of the paint on the pipe surface, and thus improving the production quality of the pipe after painting.

[0036] Structural Description: Conveyor Table 1: Serves as a support platform, housing the conveying mechanism and pipe positioning structure, and placing them inside the spray booth to ensure the stable operation of the painting process;

[0037] Spray booth 3: Creates a relatively enclosed spraying space to avoid paint splattering;

[0038] Paint storage box 4: Stores paint materials, providing raw materials for the entire painting process;

[0039] Conveying pump 5: draws paint from paint storage tank 4 and conveys the paint to arc-shaped feeding box 13 through feeding pipe 12 to ensure a stable supply of paint;

[0040] Positioning frame 6: Fixed to the conveyor belt, it works with other positioning components to position the metal pipes and prevent them from shaking during conveying and spraying.

[0041] Movable plate 7: It is threaded onto the threaded rod 20 and slides in the sliding groove 19 under the drive of the threaded rod 20, clamping and positioning the pipe fitting from both sides;

[0042] Fixed plate 8: Fixed on the conveyor belt, providing an installation base for the electric telescopic rod 11 and assisting in the positioning operation of the pipe fitting;

[0043] Support frame 9: Connected to the telescopic end of the electric telescopic rod 11, it adjusts the position of the pipe under the push of the electric telescopic rod 11 to achieve precise positioning;

[0044] First protective cover 10: Protects the electric telescopic pole 11 to ensure normal operation;

[0045] Arc-shaped feeding box 13: Fixed inside the spray box 3, it contains multiple spray nozzles 14 to distribute the paint and make the paint sprayed evenly through the spray nozzles 14.

[0046] Spray nozzle 14: Fixed inside the arc-shaped feed box 13, it evenly sprays the paint inside the arc-shaped feed box 13 onto the surface of the metal pipe.

[0047] Support plate 15: Fixed inside the conveyor table, located inside the conveyor belt, to provide support for the conveyor belt and ensure the stability of the conveying process;

[0048] Threaded rod 20: The moving plate 7 slides through the threaded transmission to achieve clamping and positioning of the pipe fitting;

[0049] Second protective cover 22: Covers the drive motor 21 to prevent paint and dust from damaging the drive motor 21.

[0050] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.

Claims

1. A device for coating the surface of metal pipe fittings, characterized in that, include: The conveyor (1) and the spray box (3) are located inside the spray box (3). The conveyor (1) is installed inside the conveyor (1) and the support plate (15) is fixedly connected inside the conveyor (1). The support plate (15) is located inside the conveyor belt of the conveyor (2). Pipe positioning structure, the pipe positioning structure is located on the conveyor table (1); The pipe positioning structure includes a fixed plate (8), an electric telescopic rod (11), a support frame (9), and a positioning frame (6). The positioning frame (6) and the fixed plate (8) are both fixedly connected to the conveyor belt of the conveying mechanism (2). The electric telescopic rod (11) is fixedly installed on the side of the fixed plate (8) away from the positioning frame (6). Among them, the telescopic end of the electric telescopic rod (11) slides through the fixed plate (8) and is fixedly connected to the support frame (9). The positioning frame (6) has two sliding grooves (19) on the side close to the fixed plate (8), and the positioning frame (6) has a transmission groove (17) inside. Among them, the positioning frame (6) is fixedly installed with a drive motor (21) on the side away from the fixed plate (8). The output end of the drive motor (21) rotates and extends into the interior of the transmission groove (17) and is fixedly connected with the main bevel gear (16).

2. The metal pipe surface painting device according to claim 1, characterized in that: The pipe positioning structure also includes two threaded rods (20), two movable plates (7) and two secondary bevel gears (18), with the two threaded rods (20) rotatably connected inside the corresponding sliding grooves (19); Among them, the opposite ends of the two threaded rods (20) are rotatably extended into the interior of the transmission groove (17) and fixedly connected with the corresponding secondary bevel gears (18). The two secondary bevel gears (18) are meshed with the main bevel gear (16). Both movable plates (7) are threaded onto the outer surface of the corresponding threaded rod (20), and both movable plates (7) are slidably connected to the interior of the corresponding sliding groove (19).

3. The metal pipe surface painting device according to claim 1, characterized in that: The spray box (3) is fixedly connected to an arc-shaped feeding box (13), and the conveyor (1) is located inside the arc-shaped feeding box (13). Multiple paint nozzles (14) are fixedly connected inside the arc-shaped feeding box (13), and the multiple paint nozzles (14) are all connected to the inside of the arc-shaped feeding box (13).

4. The metal pipe surface painting device according to claim 3, characterized in that: A paint storage tank (4) is fixedly installed on the top of the spray box (3). A conveying pump (5) is fixedly installed on one side of the paint storage tank (4). The pumping end of the conveying pump (5) is connected to the inside of the paint storage tank (4). The discharge end of the conveying pump (5) is fixedly connected to a feeding pipe (12). The three ends of the feeding pipe (12) away from the conveying pump (5) are all connected to the inside of the arc-shaped feeding box (13).

5. The metal pipe surface painting device according to claim 1, characterized in that: The first protective cover (10) is fixedly connected to the side of the fixed plate (8) away from the support frame (9). The first protective cover (10) is located outside the electric telescopic rod (11). The second protective cover (22) is fixedly connected to the side of the positioning frame (6) away from the support frame (9). The drive motor (21) is located inside the second protective cover (22).

6. The metal pipe surface painting device according to claim 1, characterized in that: The conveying mechanism (2) is composed of two conveying rollers, a conveyor belt and a motor.