An automatic coating and winding device for epoxy fiberglass composite steel pipes

By designing an automatic coating and winding device, which uses a servo motor drive and a clamping spraying and rolling device, the problems of low efficiency and inconsistent quality of traditional manual winding are solved, and synchronous coating and winding and efficient automated operation are realized.

CN224423345UActive Publication Date: 2026-06-30NINGXIA QINGLONG STEEL PLASTIC COMPOSITE PIPE CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
NINGXIA QINGLONG STEEL PLASTIC COMPOSITE PIPE CO LTD
Filing Date
2025-07-10
Publication Date
2026-06-30

AI Technical Summary

Technical Problem

Traditional epoxy fiberglass composite steel pipes have low anti-corrosion construction efficiency, poor consistency in coating quality, and cannot be carried out simultaneously, which is affected by the skill level of the workers.

Method used

An automatic coating and winding device for epoxy fiberglass composite steel pipes was designed. It adopts servo motor drive, screw and fixed ring cooperation to realize synchronous coating and winding, clamping device to ensure pipe fixation, and spraying and roller coating devices work together to realize automated operation.

Benefits of technology

It achieves efficient and uniform coating and winding of epoxy fiberglass composite steel pipes, improving construction quality and efficiency, adapting to pipes of different lengths, and allowing for adjustable coating and winding speeds.

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Abstract

This utility model discloses an automatic coating and winding device for epoxy fiberglass composite steel pipes, including a base plate, a first support plate and a second support plate respectively installed on both sides of the base plate, a sliding rod and a screw installed between the first and second support plates, the screw connected to a first motor, the first motor mounted on the second support plate, a clamping device installed on the second support plate, a cylinder installed on the first support plate, the cylinder connected to a sliding plate, the sliding plate slidably connected to the sliding rod and the screw, a clamping device installed on the sliding plate, a fixed ring sleeved on the sliding rod, the screw and the fixed ring connected by threads, the fixed ring rotatably sleeved on a moving ring, a ring gear installed on one side of the moving ring, a second motor installed on one side of the fixed ring, a gear installed on the second motor, the gear meshing with the ring gear, a winding device and a spraying device installed on the inner side of the moving ring. By using this application, epoxy fiberglass composite pipes of different lengths can be clamped and simultaneously coated and wound.
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Description

Technical Field

[0001] This utility model relates to the field of automatic coating and winding technology for steel pipes, and in particular to an automatic coating and winding device for epoxy fiberglass composite steel pipes. Background Technology

[0002] Epoxy fiberglass composite steel pipe is a high-performance anti-corrosion pipeline. It is formed by coating the outer wall of a 3PE finished pipe with epoxy resin and winding a fiberglass reinforcement layer to create a composite structure. It combines the strength of metal pipes with the corrosion resistance of non-metallic pipes and is widely used in petroleum, chemical, and marine engineering fields. Traditional anti-corrosion construction of epoxy fiberglass composite steel pipes often involves manual winding and coating. This method is inefficient, inconsistent, and prone to substandard anti-corrosion due to worker skill levels. Furthermore, coating and winding cannot be performed simultaneously, requiring multiple frequent operations. Therefore, we propose an automatic coating and winding device for epoxy fiberglass composite steel pipes to solve these problems. Utility Model Content

[0003] This utility model provides an automatic coating and winding device for epoxy fiberglass composite steel pipes, which solves the problems of poor coating quality, inability to automatically coat and wind, and inability to perform coating and winding simultaneously in traditional winding and coating methods.

[0004] This utility model provides an automatic coating and winding device for epoxy fiberglass composite steel pipes, including a base plate. A first support plate and a second support plate are respectively installed on both sides of the base plate. A sliding rod and a screw are installed between the first and second support plates, and the screw is connected to a first motor. The first motor is mounted on the second support plate, and a clamping device is installed on the second support plate. A cylinder is mounted on the first support plate, and the cylinder is connected to a sliding plate. The sliding plate is slidably connected to the sliding rod and the screw, and the clamping device is installed on the sliding plate. A fixed ring is sleeved on the sliding rod, and a spraying device is installed on the top of the fixed ring. The screw and the fixed ring are connected by threads. The fixed ring is rotatably sleeved on a moving ring. A ring gear is installed on one side of the moving ring, and a second motor is installed on one side of the fixed ring. A gear is installed on the second motor, and the gear meshes with the ring gear. A winding device and a roller coating device are installed on the inner side of the moving ring.

[0005] Preferably, the clamping device includes a fixed post, on which a support ring is fixedly sleeved.

[0006] Preferably, the winding device includes two fixed blocks fixed inside the moving ring, and a roller is rotatably mounted between the two fixed blocks.

[0007] Preferably, the spraying device includes a hopper installed on the top of the fixed ring, the hopper is connected to a guide pipe, and a conveying pump is installed on the guide pipe.

[0008] Preferably, the roller coating device includes an electric telescopic rod installed inside the moving ring, and a brush roller bracket is installed at the end of the electric telescopic rod, with a brush roller installed on the brush roller bracket.

[0009] Preferably, small ball bearings are installed between the moving ring and the fixed ring.

[0010] Preferably, the number of sliding rods is two.

[0011] Preferably, the inner side of the support ring is provided with a rubber layer.

[0012] Preferably, the first motor and the second motor are servo motors.

[0013] As can be seen from the above technical solution, this utility model provides an automatic coating and winding device for epoxy fiberglass composite steel pipes. In use, the glass fiber to be wound is first installed on the rollers, epoxy resin is added to the hopper, and then the pipe to be coated and wound is aligned with the fixed columns using a hoisting device. The cylinder is started, driving the sliding plate to move. The support rings on the two fixed columns clamp the pipe. The glass fiber to be wound is then fixed to one end of the pipe. At this point, the coating and winding operation begins. The first motor and the second motor are started. The first motor drives the rotating ring to rotate via gears, and the second motor drives the screw to rotate. The screw drives the fixed ring to move in a specific direction. At this point, the delivery pump is started, spraying epoxy resin along the guide pipe onto the pipe wall. The electric telescopic rod is started, causing the brush roller to adhere tightly to the pipe wall. The brush roller can then evenly coat the epoxy resin sprayed onto the pipe wall, while simultaneously winding glass fiber onto the pipe surface from the other end. When the fixed ring moves to the end of the pipe, the first and second motors are turned off, and the glass fiber is cut. This completes one coating operation. Repeated operation allows for multi-layer coating and winding.

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

[0015] 1. The first motor, screw, slide bar and fixed ring can make the equipment move at a constant speed, which can ensure that the epoxy fiberglass composite ring is coated and wound at a constant speed.

[0016] 2. The epoxy fiberglass composite pipe can be simultaneously wound and coated by the combination of the winding device, spraying device and roller coating device, and the coating and winding speed can be adjusted as needed;

[0017] 3. The epoxy fiberglass composite pipe can be clamped during winding by the cylinder and clamping device, and epoxy fiberglass composite pipes of different lengths can be replaced as needed.

[0018] In summary, by using this application, epoxy fiberglass composite pipes of different lengths can be clamped and simultaneously coated and wound. The coating and winding speeds can be adjusted as needed to achieve the best coating and winding quality. Attached Figure Description

[0019] To more clearly illustrate the technical solution of this utility model, the drawings used in the implementation examples will be briefly introduced below. Obviously, for those skilled in the art, other drawings can be obtained based on these drawings without any creative effort.

[0020] Figure 1 This is a schematic diagram of the overall structure of an automatic coating and winding device for epoxy fiberglass composite steel pipes proposed in this utility model.

[0021] Figure 2 Here is a schematic diagram A of the fixed ring and the moving ring of the automatic coating and winding device for epoxy fiberglass composite steel pipe proposed in this utility model;

[0022] Figure 3 This is a schematic diagram (B) of the fixed ring and moving ring of an automatic coating and winding device for epoxy fiberglass composite steel pipes proposed in this utility model.

[0023] In the diagram: 1. Base plate; 2. First support plate; 3. Second support plate; 4. Slide rod; 5. Screw; 6. First motor; 7. Cylinder; 8. Slide plate; 9. Fixed ring; 10. Moving ring; 11. Ring gear; 12. Second motor; 13. Gear; 14. Fixed column; 15. Support ring; 16. Fixed block; 17. Roller; 18. Hopper; 19. Guide tube; 20. Conveying pump; 21. Electric telescopic rod; 22. Brush roller bracket; 23. Brush roller; 24. Small ball bearing. Detailed Implementation

[0024] To enable those skilled in the art to better understand the technical solutions of this utility model, the technical solutions in the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings.

[0025] See Figure 1-3An automatic coating and winding device for epoxy fiberglass composite steel pipes is disclosed, applied in the field of automatic coating and winding technology for steel pipes. It can clamp epoxy fiberglass composite pipes of different lengths and simultaneously coat and wind them. The coating and winding speeds can be adjusted as needed to achieve optimal coating and winding quality. Specifically, it includes a base plate 1, with a first support plate 2 and a second support plate 3 installed on both sides of the base plate 1. A sliding rod 4 and a screw 5 are installed between the first support plate 2 and the second support plate 3. To maintain equipment stability, this application uses two sliding rods 4, but more can be added as needed. The screw 5 is connected to a first motor 6. The first motor 6 is mounted on the second support plate 3. The first motor 6 can drive the screw 5 to rotate. A clamping device is installed on the second support plate 3, which can effectively fix the pipe. A cylinder 7 is installed on the first support plate 2. The cylinder 7 is connected to a sliding plate 8. The sliding plate 8 is slidably connected to the sliding rod 4 and the screw 5. A clamping device is installed on the sliding plate 8. Driven by the cylinder 7, the sliding plate 8 can move left and right along the sliding rod 4, thereby clamping pipes of different lengths. A fixed ring 9 is sleeved on the sliding rod 4. A spraying device is installed on the top of the fixed ring 9. The spraying device can spray epoxy resin onto the epoxy fiberglass composite pipe. The screw 5 and the fixed ring 9 are connected by threads. The fixed ring 9 can move left and right as the screw 5 rotates. The fixed ring 9 is rotatably sleeved on the moving ring 10. A ring gear is installed on one side of the moving ring. 11. A second motor 12 is installed on one side of the fixed ring 9. A gear 13 is installed on the second motor 12. The gear 13 meshes with the ring gear 11. A winding device and a roller coating device are installed on the inner side of the moving ring 10. The gear 13 on the second motor 12 can drive the moving ring 10 to rotate through the ring gear 11, so that the winding device and roller coating device installed on the moving ring 10 can rotate in the circumferential direction. The roller coating device can evenly coat the epoxy resin sprayed on the epoxy fiberglass composite pipe by the spray device. In cooperation with the fixed ring 9 moving along the direction of the screw 5, the entire pipe wall can be coated and wound. The structure of this application is simple. It can coat and wind epoxy fiberglass composite steel pipes of different lengths. The speed can be automatically adjusted as needed. Coating and winding can be carried out simultaneously, which can greatly improve work efficiency.

[0026] In this utility model, the clamping device includes a fixed post 14, on which a support ring 15 is fixedly sleeved. The inner side of the support ring 15 is provided with a rubber layer. The support ring 15 can effectively support both ends of the pipe. The rubber layer can protect both ends of the pipe by increasing friction and preventing them from being damaged by clamping.

[0027] In this invention, the winding device includes two fixed blocks 16 fixed inside the moving ring 10, and a roller 17 is rotatably mounted between the two fixed blocks 16. The roller 17 is a detachable roller that can be freely disassembled, making it convenient to install glass fiber on it.

[0028] In this invention, the spraying device includes a hopper 18 installed on the top of the fixed ring 9. The hopper 18 is connected to a guide pipe 19, and a delivery pump 20 is installed on the guide pipe 19. Before use, epoxy resin needs to be added into the hopper 18. After starting the delivery pump 20, the epoxy resin will be sprayed along the guide pipe 19 onto the outer wall of the pipe. The delivery amount of epoxy resin can be changed by adjusting the delivery pump 20 to adapt to different working requirements.

[0029] In this invention, the roller coating device includes an electric telescopic rod 21 installed inside the rotating ring 10. A brush roller bracket 22 is installed at the end of the electric telescopic rod 21, and a brush roller 23 is installed on the brush roller bracket 22. In use, the electric telescopic rod 21 is activated, so that the brush roller 23 is pressed against the pipe wall. As the rotating ring 10 rotates, the epoxy resin poured on the pipe wall can be coated.

[0030] In this invention, a small ball bearing 24 is installed between the moving ring 10 and the fixed ring 9. Since the moving ring 10 and the fixed ring 9 need to rotate relative to each other, the small ball bearing 24 can effectively reduce the friction between the moving ring 10 and the fixed ring 9, making the equipment run more smoothly.

[0031] In this invention, the first motor 6 and the second motor 12 are servo motors. Because the equipment requires precise control, servo motors are used to improve the coating and wrapping quality.

[0032] As can be seen from the above technical solution, during use, firstly, the glass fiber to be wound is installed on the roller 17, epoxy resin is added to the hopper 18, and then the pipe to be coated and wound is aligned with the fixed column 14 by the hoisting equipment. The cylinder 7 is started, and the cylinder 7 drives the slide plate 8 to move. The support rings 15 on the two fixed columns 14 clamp the pipe. Then, the glass fiber to be wound is fixed to one end of the pipe. At this time, the coating and winding operation begins. The first motor 6 and the second motor 12 are started. The first motor 6 drives the rotating ring 10 to rotate through the gear 13, and the second motor 12... 2. The screw 5 is driven to rotate, and the screw 5 drives the fixed ring 9 to move in a direction. At this time, the delivery pump 20 is started. The delivery pump 20 sprays epoxy resin onto the pipe wall along the guide tube 19. The electric telescopic rod 21 is started, so that the brush roller 23 is in close contact with the pipe wall. At this time, the brush roller 23 can evenly coat the epoxy resin sprayed on the pipe wall. At the same time, the other end is wrapped with glass fiber on the surface of the pipe. When the fixed ring 9 moves to the end of the pipe, the first motor 6 and the second motor 12 are turned off, and the glass fiber is cut. Thus, one coating operation is completed. Repeated operation can be used for multi-layer coating and wrapping.

[0033] Other embodiments of the present invention will readily occur to those skilled in the art upon consideration of the specification and practice of the invention disclosed herein. The present invention is intended to cover any variations, uses, or adaptations of the invention that follow the general principles of the invention and include common knowledge or customary techniques in the art not disclosed herein. The specification and examples are to be considered exemplary only, and the true scope of the invention is indicated by the claims.

[0034] It should be understood that this utility model is not limited to the precise structure described above and shown in the accompanying drawings, and various modifications and changes can be made without departing from its scope. The embodiments of this utility model described above do not constitute a limitation on the scope of protection of this utility model.

Claims

1. An automatic coating and winding device for epoxy fiberglass composite steel pipes, comprising a base plate (1), characterized in that: A first support plate (2) and a second support plate (3) are respectively installed on both sides of the base plate (1). A slide rod (4) and a screw rod (5) are installed between the first support plate (2) and the second support plate (3). The screw rod (5) is connected to a first motor (6). The first motor (6) is installed on the second support plate (3). A clamping device is installed on the second support plate (3). A cylinder (7) is installed on the first support plate (2). The cylinder (7) is connected to a sliding plate (8). The sliding plate (8) is slidably connected to the slide rod (4) and the screw rod (5). 8) A clamping device is installed on the slide rod (4), a fixed ring (9) is sleeved on the slide rod (4), a spraying device is installed on the top of the fixed ring (9), the screw (5) and the fixed ring (9) are connected by threads, the fixed ring (9) is rotatably sleeved on the moving ring (10), a ring gear (11) is installed on one side of the moving ring, a second motor (12) is installed on one side of the fixed ring (9), a gear (13) is installed on the second motor (12), the gear (13) and the ring gear (11) mesh with each other, and a winding device and a roller coating device are installed on the inner side of the moving ring (10).

2. The automatic coating and winding device for epoxy fiberglass composite steel pipe according to claim 1, characterized in that, The clamping device includes a fixed post (14), on which a support ring (15) is fixedly sleeved.

3. The automatic coating and winding device for epoxy fiberglass composite steel pipe according to claim 1, characterized in that, The winding device includes two fixed blocks (16) fixed inside the moving ring (10), and a roller (17) is rotatably mounted between the two fixed blocks (16).

4. The automatic coating and winding device for epoxy fiberglass composite steel pipe according to claim 1, characterized in that, The spraying device includes a hopper (18) installed on top of the fixed ring (9), the hopper (18) is connected to a guide pipe (19), and a delivery pump (20) is installed on the guide pipe (19).

5. The automatic coating and winding device for epoxy fiberglass composite steel pipe according to claim 1, characterized in that, The roller coating device includes an electric telescopic rod (21) installed inside the moving ring (10), and a brush roller bracket (22) is installed at the end of the electric telescopic rod (21), and a brush roller (23) is installed on the brush roller bracket (22).

6. The automatic coating and winding device for epoxy fiberglass composite steel pipe according to claim 1, characterized in that, Small ball bearings (24) are installed between the moving ring (10) and the fixed ring (9).

7. The automatic coating and winding device for epoxy fiberglass composite steel pipe according to claim 1, characterized in that, The number of slide bars (4) is two.

8. The automatic coating and winding device for epoxy fiberglass composite steel pipe according to claim 2, characterized in that, The inner side of the support ring (15) is provided with a rubber layer.

9. The automatic coating and winding device for epoxy fiberglass composite steel pipe according to claim 1, characterized in that, The first motor (6) and the second motor (12) are servo motors.