Coating device for coating steel pipe for fire fighting

By designing a coating device with a support frame, spraying and feeding mechanism, and using a servo motor to drive the spraying and feeding, the problems of low efficiency and safety hazards in traditional manual coating of steel pipes are solved, and a uniform automatic spraying effect is achieved for fire-fighting coated steel pipes.

CN223530653UActive Publication Date: 2025-11-11SICHUAN BINAISI PIPE CO LTD
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Patent Information

Application Number
CN202422947120.4
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-11-29
Publication Date
2025-11-11
Estimated Expiration
2034-11-29

AI Technical Summary

Technical Problem

Traditional manual coating of steel pipes is labor-intensive, inefficient, and difficult to guarantee coating uniformity, and also poses safety hazards. Existing coating devices are complex in structure, cumbersome to operate, and costly.

Method used

A coating device including a support, a spraying mechanism and a feeding mechanism is designed. The spraying and feeding are driven by a servo motor to ensure uniform paint spraying. The spraying effect and efficiency are improved by the paint spraying components and the cleaning mechanism.

Benefits of technology

It enables uniform and automatic spraying of coated steel pipes for fire protection, improving spraying efficiency and paint adhesion, while reducing labor intensity and safety hazards.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a coating device for a fire-fighting coated steel pipe. The coating device comprises a bracket; the spraying mechanism comprises an arch-shaped frame, a mounting base and a paint spraying assembly, the arch-shaped frame is arranged in the middle of the support, the mounting base is arranged on the arch-shaped frame, and the paint spraying assembly is arranged on the arch-shaped frame; the feeding mechanism comprises a first pipeline fixing part and a first support, the first support is arranged on the support in a sliding mode, the sliding direction of the first support is parallel to the length direction of the support, and the first pipeline fixing part is rotationally arranged on the first support. According to the coating device for the coating steel pipe for fire fighting, paint can be uniformly and automatically sprayed, and the paint spraying effect and efficiency are improved.
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Description

Technical Field

[0001] This utility model relates to the field of spraying device technology, specifically to a coating device for fire-fighting coated steel pipes. Background Technology

[0002] Fire-fighting coated steel pipes, as a new type of fire-fighting piping material, have seen increasingly widespread application in the fire protection field in recent years. These pipes use ordinary steel pipes as the base material, and a special coating, such as epoxy resin or polyethylene, is applied to both the inner and outer walls through a special process. After high-temperature curing, a composite pipe is formed. This coated steel pipe not only retains the mechanical strength of the steel pipe but also endows it with excellent corrosion resistance and electrical insulation, solving the problems of easy rusting and aging of traditional fire-fighting pipes.

[0003] Traditional coating operations are mostly done manually by coating personnel, which is not only labor-intensive but also inefficient, making it difficult to meet the high requirements of modern fire protection systems for pipe materials. During manual coating, it is difficult to guarantee the uniformity and adhesion of the coating, potentially leading to uneven coating thickness, which affects the corrosion resistance and service life of the pipes. Furthermore, manual coating poses safety hazards because coatings often have a certain degree of toxicity and volatility, posing a threat to the health of operators.

[0004] To improve coating efficiency and coating quality, various coating devices have emerged in the existing technology. However, most of these devices suffer from problems such as complex structure, cumbersome operation, and high cost, which limit their application in actual production. Utility Model Content

[0005] In order to solve the technical problems existing in the prior art, this application provides a coating device for fire-fighting coated steel pipes.

[0006] To achieve the above objectives, the technical solution adopted in this application is: a coating device for fire-fighting coated steel pipes, comprising:

[0007] support;

[0008] The spraying mechanism includes an arched frame, a mounting base, and a spraying assembly. The arched frame is located in the middle of the support frame, the mounting base is located on the arched frame, and the spraying assembly is located on the arched frame.

[0009] The feeding mechanism includes a first pipe fixing component and a first support. The first support is slidably mounted on the bracket, and the sliding direction of the first support is parallel to the length direction of the bracket. The first pipe fixing component is rotatably mounted on the first support.

[0010] In some embodiments of this utility model, the above-mentioned painting assembly includes a storage tank for storing paint raw materials, a spray nozzle, and an air compressor. The air compressor and the storage tank are both mounted on a mounting base. The storage tank and the spray nozzle are connected through a feeding pipe. The air compressor is connected to the spray nozzle.

[0011] In some embodiments of this utility model, the mounting base is provided with a cleaning mechanism for cleaning the pipe to be painted. The cleaning mechanism includes an air guide pipe and several air nozzles. The air guide pipe is arranged on the mounting base along the length of the bracket, and the air nozzles are evenly spaced on the air guide pipe. The output end of the air nozzles is aligned with the pipe to be painted.

[0012] In some embodiments of this utility model, the bracket is provided with a first groove for accommodating the reciprocating sliding of the first support, and the first support is slidably disposed in the first groove.

[0013] In some embodiments of this utility model, the bracket is provided with a driving mechanism for driving the first support to slide. The driving mechanism includes a lead screw and a first motor. The lead screw is rotatably mounted on the bracket and passes through the first support. The lead screw and the first support are threadedly connected.

[0014] In some embodiments of this utility model, the first support is provided with a second motor for driving the first pipe fixing component to rotate.

[0015] In some embodiments of this utility model, both the first motor and the second motor are servo motors.

[0016] In some embodiments of this utility model, the feeding mechanism further includes a second support and a second pipe fixing member slidably disposed on the bracket, the bracket having a second groove for accommodating the second support, and the second pipe fixing member being rotatably disposed on the second support.

[0017] In some embodiments of this utility model, the first pipe fixing member and the second pipe fixing member are both three-jaw chucks.

[0018] Beneficial effects:

[0019] This utility model provides a coating device for fire-fighting coated steel pipes, comprising: a support; a spraying mechanism including an arched frame, a mounting base, and a paint spraying assembly, the arched frame being disposed in the middle of the support, the mounting base being disposed on the arched frame, and the paint spraying assembly being disposed on the arched frame; and a feeding mechanism including a first pipe fixing component and a first support, the first support being slidably disposed on the support, the sliding direction of the first support being parallel to the length direction of the support, and the first pipe fixing component being rotatably disposed on the first support. The support is used to install the spraying mechanism and the feeding mechanism, facilitating their coordinated operation and ensuring uniform spraying of the pipe's outer wall, thus improving the convenience of the pipe spraying operation. The spraying mechanism is used to evenly spray liquid paint, after atomization, onto the outer wall of the pipe to be coated, effectively improving the paint spraying effect and ensuring the uniformity of the overall paint spraying on the pipe. The aforementioned feeding mechanism is used to uniformly transport the pipe to be sprayed to the output end of the spraying mechanism. By transporting and feeding along the length of the support and rotating the pipe to be sprayed during spraying, the effect of the paint surface after spraying can be improved.

[0020] Therefore, the coating device for fire-fighting coated steel pipes can automatically and evenly spray paint, improving the spraying effect and efficiency of the paint. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0022] Figure 1 This is a schematic diagram of the structure of an embodiment of this application;

[0023] Figure 2 for Figure 1 A magnified view of a section at point A in the middle;

[0024] Figure 3 This is a front view of an embodiment of this application;

[0025] Figure 4 for Figure 3 A sectional view of section BB in the middle.

[0026] In the diagram: 1-Bracket; 2-Arch frame; 3-Mounting base; 4-Painting assembly; 401-Storage bin; 402-Paint nozzle; 403-Air compressor; 5-Feeding mechanism; 501-First pipe fixing component; 502-First support; 6-Feeding pipe; 7-Cleaning mechanism; 701-Air guide pipe; 702-Air nozzle; 8-First chute; 9-Screw; 10-First motor; 11-Second motor; 12-Second support; 13-Second pipe fixing component. Detailed Implementation

[0027] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. The components of the embodiments of this application described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0028] Therefore, the following detailed description of the embodiments of this application provided in the accompanying drawings is not intended to limit the scope of the claimed application, but merely to illustrate selected embodiments of the application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application.

[0029] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0030] In the description of this application, it should be noted that the use of terms such as "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer" to indicate orientation or positional relationships is based on the orientation or positional relationships shown in the accompanying drawings, or the orientation or positional relationships commonly used when the product is in use. These terms are used solely for the convenience of describing this application and for 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 application. Furthermore, the use of terms such as "first" and "second" in the description of this application is only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0031] Furthermore, the use of terms such as "horizontal" and "vertical" in the description of this application does not imply that the component is required to be absolutely horizontal or suspended, but rather that it may be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal relative to "vertical," and does not mean that the structure must be completely horizontal, but rather that it may be slightly tilted.

[0032] In the description of this application, it should also be noted that, unless otherwise expressly specified and limited, the terms "set up," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0033] Example

[0034] Please refer to Figures 1-4 This embodiment provides a coating device for fire-fighting coated steel pipes, including: a bracket 1 for installing a spraying mechanism and a feeding mechanism 5, which facilitates the coordinated operation of the spraying mechanism and the feeding mechanism 5, facilitates uniform spraying of the outer wall of the pipe, and improves the convenience of pipe spraying operation.

[0035] The spraying mechanism includes an arched frame 2, a mounting base 3, and a spraying assembly 4. The arched frame 2 is located in the middle of the support 1, the mounting base 3 is located on the arched frame 2, and the spraying assembly 4 is located on the arched frame 2.

[0036] The feeding mechanism 5 includes a first pipe fixing member 501 and a first support 502. The first support 502 is slidably disposed on the bracket 1. The sliding direction of the first support 502 is parallel to the length direction of the bracket 1. The first pipe fixing member 501 is rotatably disposed on the first support 502.

[0037] In this embodiment, the aforementioned spraying mechanism is used to uniformly spray liquid paint onto the outer wall of the pipe to be sprayed after atomization, which can effectively improve the paint spraying effect and ensure the uniformity of the overall paint spraying on the pipe. Specifically, the aforementioned arched frame 2 is used to suspend the mounting base 3 and the spraying assembly 4 directly above the bracket 1, so that the spraying assembly 4 can atomize the paint and spray it vertically onto the pipe to be sprayed. The atomized paint reaches the pipe to be sprayed under its own gravity, which can improve the paint adhesion effect. The aforementioned mounting base 3 is arranged along the length direction of the bracket 1 and is used to install the aforementioned spraying assembly 4.

[0038] In this embodiment, the feeding mechanism 5 is used to uniformly transport the pipe to be sprayed to the output end of the spraying mechanism. By transporting and feeding along the length of the support 1 and circulating the pipe to be sprayed during spraying, the effect of the paint surface after spraying can be improved. Specifically, the first pipe fixing member 501 is used to fix the pipe, and then, with the cooperation of the first support 502, the pipe is transported to the bottom of the painting assembly 4 to facilitate paint adhesion.

[0039] Please refer to Figure 1 and Figure 3 In some embodiments of this example, the above-mentioned painting assembly 4 includes a storage tank 401 for storing paint raw materials, a spray nozzle 402 and an air compressor 403. The air compressor 403 and the storage tank 401 are both disposed on the mounting base 3. The storage tank 401 and the spray nozzle 402 are connected through a feeding pipe 6. The air compressor 403 is connected to the spray nozzle 402.

[0040] In this embodiment, the aforementioned storage tank 401 is used to temporarily store the homogenized paint raw materials. The aforementioned air compressor 403 is used to provide safe and efficient driving force for spraying and sanding. By controlling the flow rate and pressure of compressed air, it can ensure that the paint is sprayed onto the object surface at a uniform speed and thickness, thereby obtaining a smooth and uniform painting effect. The aforementioned paint nozzle 402, through its unique structural design, can precisely adjust the flow rate, speed, direction, and pressure of compressed air to ensure that the paint is sprayed onto the object surface at a uniform speed and thickness. The paint nozzle 402 can entrain the surrounding atmospheric air with the compressed air, forming a concentrated, high-speed, laminar amplified airflow, thereby improving the painting efficiency. The paint nozzle 402 mixes the compressed air with the paint, and the high-speed airflow atomizes the paint into tiny particles, making it easier for them to adhere evenly to the object surface.

[0041] Please refer to Figures 1-4 In some embodiments of this example, the mounting base 3 is provided with a cleaning mechanism 7 for cleaning the pipe to be painted. The cleaning mechanism 7 includes an air guide pipe 701 and a plurality of air nozzles 702. The air guide pipe 701 is arranged on the mounting base 3 along the length direction of the bracket 1. The air nozzles 702 are evenly spaced on the air guide pipe 701, and the output end of the air nozzles 702 is aligned with the pipe to be painted.

[0042] In this embodiment, the cleaning mechanism 7 is used to remove dust and other deposits from the outer wall of the pipe to be sprayed using high-pressure gas, thereby greatly improving the cleanliness of the pipe and enhancing the adhesion of the paint. Specifically, the air guide pipe 701 is used to guide the high-pressure gas compressed by the air compressor 403, thereby delivering the high-pressure gas to the nozzles 702. The nozzles 702 are used to form a high-pressure airflow band, thereby increasing the dust removal efficiency and effect. Furthermore, the nozzles 702 are used to further compress the ejected air, improving the cleaning effect.

[0043] Please refer to Figure 4 In some embodiments of this example, the bracket 1 is provided with a first groove 8 for accommodating the reciprocating sliding of the first support 502, and the first support 502 is slidably disposed in the first groove 8.

[0044] In this embodiment, the first slide groove 8 is used to guide and position the sliding of the first support 502. The first slide groove 8 is used to support the sliding of the first support 502. The opening direction of the first slide groove 8 is parallel to the length direction of the bracket 1, and the first support 502 can slide freely within the first slide groove 8.

[0045] Please refer to Figure 1 In some embodiments of this example, the bracket 1 is provided with a driving mechanism for driving the first support 502 to slide. The driving mechanism includes a lead screw 9 and a first motor 10. The lead screw 9 is rotatably mounted on the bracket 1 and passes through the first support 502. The lead screw 9 and the first support 502 are threadedly connected.

[0046] In this embodiment, the aforementioned driving mechanism drives the feeding mechanism 5 to reciprocate on the support 1, facilitating the uniform conveying of the pipe to be sprayed to directly below the spray nozzle 402, thus ensuring even spraying and improving the spraying effect. During use, when the first motor 10 drives the lead screw 9 to rotate, the helical groove on the lead screw 9 engages with the internal thread on the first support 502, causing the first support 502 to move linearly along the axis of the lead screw 9. By changing the rotation direction of the motor, the reciprocating motion of the first support 502 can be achieved.

[0047] Please refer to Figure 1 and Figure 3 In some embodiments of this example, the first support 502 is provided with a second motor 11 for driving the first pipe fixing member 501 to rotate.

[0048] In this embodiment, the second motor 11 is used to drive the first pipe fixing member 501 to rotate at a constant speed, thereby flipping the pipe to be sprayed that is clamped and fixed on the first pipe fixing member 501, so that the pipe to be sprayed can uniformly receive the paint output by the spray nozzle 402, and improve the uniformity of spraying.

[0049] In some embodiments of this example, both the first motor 10 and the second motor 11 are servo motors.

[0050] It should be noted that a servo motor is an engine that controls the operation of mechanical components in a servo system; it is a type of auxiliary motor with indirect speed change. Servo motors can control speed with very high positional accuracy, converting voltage signals into torque and speed to drive the controlled object. The excellent control precision of servo motors makes them ideal materials for the first motor 10 and the second motor 11, but they are not limited to these materials and can also be other materials with similar properties.

[0051] Please refer to Figure 1 and Figure 3In some embodiments of this example, the feeding mechanism 5 further includes a second support 12 and a second pipe fixing member 13 slidably disposed on the bracket 1. The bracket 1 is provided with a second sliding groove for accommodating the second support 12, and the second pipe fixing member 13 is rotatably disposed on the second support 12.

[0052] In this embodiment, the second support 12 and the second pipe fixing member 13 are used to clamp and fix the pipe. The first pipe fixing member 501 and the second pipe fixing member 13 fix the two ends of the pipe respectively, which facilitates the balance of the pipe and avoids the pipe being suspended at one end. Due to the effect of gravity, the first pipe fixing member 501 is not damaged by the pipe body, thus improving the stability of the spraying pipe.

[0053] In some embodiments of this example, the first pipe fastener 501 and the second pipe fastener 13 are both three-jaw chucks.

[0054] In this embodiment, the aforementioned three-jaw chuck, through its unique structure, uses three jaws to clamp the pipe from three different directions from the inside out, ensuring that the pipe remains stable during the paint spraying process. This stable gripping method helps to ensure the uniformity and consistency of the spraying.

[0055] In use, the pipe to be sprayed is horizontally hoisted to a position where it aligns with the line connecting the first pipe fixing component 501 and the second pipe fixing component 13 using hoisting equipment. One end of the pipe to be sprayed is moved into the first pipe fixing component 501, and then the first pipe fixing component 501 is driven to clamp and fix one end of the pipe. The second support 12 is slid to the other end of the pipe to be sprayed, and the second pipe fixing component 13 fixes the other end of the pipe to be sprayed. The first motor 10 is driven to work, and the lead screw 9 rotates to slowly transport the pipe to be sprayed to directly below the spray nozzle 702. At the same time, the second motor 11 works to drive the pipe to be sprayed to rotate. When the pipe to be sprayed runs to below the spray nozzle 402, the spraying assembly 4 is driven to work. The entire pipe to be sprayed is completed when it passes the spray nozzle 402.

[0056] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A coating device for fire-fighting coated steel pipes, characterized in that, include: Frame (1); The spraying mechanism includes an arched frame (2), a mounting base (3), and a paint spraying assembly (4). The arched frame (2) is located in the middle of the support (1), the mounting base (3) is located on the arched frame (2), and the paint spraying assembly (4) is located on the arched frame (2). The feeding mechanism (5) includes a first pipe fixing member (501) and a first support (502). The first support (502) is slidably disposed on the bracket (1). The sliding direction of the first support (502) is parallel to the length direction of the bracket (1). The first pipe fixing member (501) is rotatably disposed on the first support (502).

2. The coating device for fire-fighting coated steel pipes according to claim 1, characterized in that, The painting assembly (4) includes a storage tank (401) for storing paint raw materials, a spray nozzle (402) and an air compressor (403). The air compressor (403) and the storage tank (401) are both mounted on the mounting base (3). The storage tank (401) and the spray nozzle (402) are connected through a feeding pipe (6). The air compressor (403) is connected to the spray nozzle (402).

3. The coating device for fire-fighting coated steel pipes according to claim 1, characterized in that, The mounting base (3) is provided with a cleaning mechanism (7) for cleaning the pipe to be painted. The cleaning mechanism (7) includes an air guide pipe (701) and a number of air nozzles (702). The air guide pipe (701) is arranged on the mounting base (3) along the length direction of the bracket (1). The air nozzles (702) are evenly spaced on the air guide pipe (701). The output end of the air nozzles (702) is aligned with the pipe to be painted.

4. The coating device for fire-fighting coated steel pipes according to claim 1, characterized in that, The bracket (1) is provided with a first groove (8) for accommodating the reciprocating sliding of the first support (502), and the first support (502) is slidably disposed in the first groove (8).

5. The coating apparatus for fire-fighting coated steel pipes according to claim 4, characterized in that, The bracket (1) is provided with a driving mechanism for driving the first support (502) to slide. The driving mechanism includes a lead screw (9) and a first motor (10). The lead screw (9) is rotatably mounted on the bracket (1) and passes through the first support (502). The lead screw (9) is threadedly connected to the first support (502).

6. The coating apparatus for fire-fighting coated steel pipes according to claim 5, characterized in that, The first support (502) is provided with a second motor (11) for driving the first pipe fixing member (501) to rotate.

7. The coating apparatus for fire-fighting coated steel pipes according to claim 6, characterized in that, Both the first motor (10) and the second motor (11) are servo motors.

8. The coating apparatus for fire-fighting coated steel pipes according to claim 1, characterized in that, The feeding mechanism (5) further includes a second support (12) and a second pipe fixing member (13) slidably disposed on the bracket (1). The bracket (1) is provided with a second groove for accommodating the second support (12), and the second pipe fixing member (13) is rotatably disposed on the second support (12).

9. The coating apparatus for fire-fighting coated steel pipes according to claim 8, characterized in that, Both the first pipe fastener (501) and the second pipe fastener (13) are three-jaw chucks.