Automatic inner wall spraying device for pipe fitting

Abstract

The utility model relates to a spraying device technical field, concretely relates to a kind of pipe inner wall automatic spraying device, including support, support one end is fixedly installed with No. 1 board and No. 2 board, No. 1 board surface is equipped with multiple No. 1 sliding slot, clamping jaw is slidably connected in No. 1 sliding slot, the surface of No. 2 board close to No. 1 board is rotatably connected with carousel, carousel surface is equipped with multiple arc sliding slot, the center of No. 1 board is fixedly installed with sliding bearing, sliding bearing is slidably connected with round bar, round bar is hollow inside, and paint spraying head is fixedly installed in round bar end close to clamping jaw, the upper surface of support is fixedly installed with slide rail, and the surface of slide rail is slidably connected with No. 3 board.The utility model adjusts the clamping jaw position, and different specifications pipe is stably clamped, and round bar and paint spraying head are in-depth pipe inner cavity, while round bar rotation drives paint spraying head to rotate when spraying, solve the problem that traditional equipment spray head is difficult to stretch into long pipe internal, can cover the whole segment inner wall of long pipe, avoid spraying dead angle.

Description

Technical Field

[0001] This utility model relates to the field of spraying device technology, specifically an automatic spraying device for the inner wall of pipe fittings. Background Technology

[0002] In the field of machinery manufacturing, the coating of the inner wall of tubular parts (such as long tanks, pipe connectors, etc.) is a key process to ensure their corrosion resistance, sealing performance and service life. At present, the industry mainly relies on manual brushing or traditional spray painting equipment for the spraying treatment of the inner wall of pipes. Manual brushing requires operators to hold tools and go deep into the inside of the pipe to work, which is labor-intensive, inefficient and limited by the range of human operation, making it difficult to cover the entire inner wall of long pipes, resulting in uneven coating thickness. Traditional spray painting equipment mostly uses fixed spray guns or simple robotic arms, whose nozzles are difficult to reach into the inner cavity of the pipe. Especially for pipes with small diameter and long length, the spray angle and coverage of the spray gun are limited, which can easily cause spraying dead spots.

[0003] Therefore, an automatic spraying device for the inner wall of pipe fittings is proposed to solve the problems mentioned above. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides an automatic spraying device for the inner wall of pipe fittings. By adjusting the position of the grippers, pipe fittings of different specifications can be stably clamped. The slide rail, No. 3 plate, and electric telescopic rod on the support work together to push the round rod and the paint spray head into the inner cavity of the pipe fitting. At the same time, the rotation of the round rod drives the paint spray head to rotate during spraying. This solves the problem that the spray head of traditional equipment is difficult to extend into the inside of long pipe fittings. It can fully cover the entire inner wall of the long pipe fitting, avoid spraying dead corners, and solve the problems mentioned in the background technology.

[0005] To achieve the above objectives, this utility model provides the following technical solution: A support is included, with a first plate and a second plate fixedly installed at one end. The first plate has multiple first-level sliding grooves on its surface, and a gripper is slidably connected within each first-level sliding groove. A turntable is rotatably connected to the surface of the second plate near the first plate, and the turntable has multiple arc-shaped sliding grooves on its surface. A sliding bearing is fixedly installed at the center of the first plate, and a round rod is slidably connected within the sliding bearing. The round rod is hollow inside. A paint spray head is fixedly installed at one end of the round rod near the gripper, and a rotary joint is rotatably connected to the other end of the round rod. The rotary joint is connected to an external paint supply device via a flexible hose. A slide rail is fixedly installed on the upper surface of the support, and a third plate is slidably connected to the surface of the slide rail. An electric telescopic rod is fixedly installed at the end of the support away from the third plate, and the other end of the electric telescopic rod is fixedly connected to the bottom end of the third plate.

[0006] Preferably, the first slide groove is evenly distributed around the center of the first plate, a slider is slidably connected in the first slide groove, a guide post is fixedly connected to the side of the slider near the second plate, the side of the slider away from the second plate is fixedly connected to the gripper, and the guide post is inserted into the arc-shaped slide groove.

[0007] Preferably, the turntable has a worm gear on its outer side, a worm gear for driving the turntable to rotate is provided between the second plate and the first plate, and a reduction motor is fixedly installed at the bottom of the first plate and the second plate, and the worm gear is fixedly connected to the output shaft of the reduction motor.

[0008] Preferably, the surface of the first plate has multiple guide holes, which are evenly distributed around the sliding bearing. Guide rods are slidably connected in the guide holes, and both ends of the multiple guide rods are connected by fixed rings. The fixed rings and the rods are connected by rotating bearings.

[0009] Preferably, a gusset cover for preventing paint damage is provided between the fixing ring on one side of the first plate and the first plate, and the fixing ring on one side of the third plate is fixedly installed to the third plate.

[0010] Preferably, a drive motor is fixedly installed on the side of the third plate near the first plate, the output shaft of the drive motor passes through the third plate, a second gear is fixedly installed on the output shaft of the drive motor, and a first gear is fixedly connected to the end of the round rod near the third plate, the first gear meshing with the second gear.

[0011] Preferably, a fixing bracket is fixedly connected to the surface of the No. 3 plate, and the fixing bracket is fixedly connected to the outer surface of the rotary joint.

[0012] Compared with the prior art, this utility model provides an automatic spraying device for the inner wall of pipe fittings, which has the following beneficial effects:

[0013] By adjusting the position of the clamps, pipe fittings of different specifications can be stably clamped. The slide rail, No. 3 plate and electric telescopic rod on the support work together to push the round rod and the paint spray head into the inner cavity of the pipe fitting. At the same time, the rotation of the round rod drives the paint spray head to rotate during spraying, which solves the problem that the traditional equipment nozzle is difficult to extend into the inside of long pipe fittings. It can fully cover the entire inner wall of the long pipe fitting and avoid spraying dead corners. Attached Figure Description

[0014] The accompanying drawings, which are included to provide a further understanding of this application and form part of this application, illustrate exemplary embodiments of this application and are used to explain this application, but do not constitute an undue limitation of this application. In the drawings:

[0015] Figure 1A side view diagram of the automatic spraying device for the inner wall of pipe fittings according to this utility model;

[0016] Figure 2 An isometric structural schematic diagram of the automatic spraying device for the inner wall of pipe fittings according to this utility model;

[0017] Figure 3 A schematic diagram of the back structure of plate No. 3 provided for the automatic spraying device for the inner wall of pipe fittings of this utility model;

[0018] Figure 4 A schematic diagram of the front structure of the No. 1 plate provided for the automatic spraying device for the inner wall of pipe fittings of this utility model;

[0019] Figure 5 This is a schematic diagram of the internal structure of the automatic spraying device for the inner wall of pipe fittings according to this utility model.

[0020] In the diagram: 1. Support; 2. Plate 1; 3. Plate 2; 4. Slide 1; 5. Gripper; 6. Turntable; 7. Arc-shaped slide; 8. Slider; 9. Guide post; 10. Worm gear; 11. Worm gear; 12. Gear motor; 13. Slide rail; 14. Plate 3; 15. Electric telescopic rod; 16. Sliding bearing; 17. Round rod; 18. Spray nozzle; 19. Rotary joint; 20. Hose; 21. Guide hole; 22. Guide rod; 23. Fixed ring; 24. Rotary bearing; 25. Bellows cover; 26. Drive motor; 27. Gear 2; 28. Gear 1; 29. ​​Fixed bracket. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] Example:

[0023] Please see Figure 1 - Figure 5This embodiment of an automatic spraying device for the inner wall of pipe fittings includes a support 1. A first plate 2 and a second plate 3 are fixedly installed at one end of the support 1. The surface of the first plate 2 has multiple first grooves 4 evenly distributed around its center. A gripper 5 is slidably connected in the first groove 4. Specifically, a slider 8 is slidably connected in the first groove 4. A guide post 9 is fixedly connected to the side of the slider 8 near the second plate 3, and the side away from the second plate 3 is fixedly connected to the gripper 5. The guide post 9 is inserted into the arc-shaped groove 7 on the surface of the turntable 6 on the second plate 3. The worm gear 10 on the outer side of the turntable 6 meshes with the worm 11. A reduction motor 12 is installed at the bottom of the first plate 2 and the second plate 3 to drive the worm 11 to rotate, thereby driving the turntable 6 to rotate. By sliding the guide post 9 in the arc-shaped groove 7, the gripper 5 slides in the first groove 4, realizing the clamping and fixing of pipe fittings of different diameters.

[0024] The slide rail 13 on the upper surface of the support 1 is slidably connected to the No. 3 plate 14. One end of the electric telescopic rod 15 is fixed to the end of the support 1 away from the No. 3 plate 14, and the other end is connected to the bottom end of the No. 3 plate 14. It is used to drive the No. 3 plate 14 to move along the slide rail 13. The round rod 17 is slidably connected in the sliding bearing 16 in the center of the No. 1 plate 2. The round rod 17 is hollow inside. One end is equipped with a paint spray head 18, and the other end is connected to a hose 20 through a rotary joint 19. The hose 20 is connected to an external paint supply device. The guide rod 22 is slidably connected in the guide holes 21 evenly distributed around the sliding bearing 16 on the surface of the No. 1 plate 2. The two ends of the guide rod 22 are connected by a fixed ring 23. The fixed ring 23 and the round rod 17 are connected by a rotating bearing 24. The fixed ring 23 on one side of the No. 3 plate 14 is fixed to the No. 3 plate 14. When the electric telescopic rod 15 pushes the No. 3 plate 14 to move, it drives the guide rod 22 to slide in the guide hole 21, thereby pushing the round rod 17 and the paint spray head 18 to move.

[0025] The output shaft of the drive motor 26 on plate 3 14 is equipped with gear 27, which meshes with gear 28 at one end of the round rod 17, driving the round rod 17 to rotate, causing the spray head 18 to rotate. The fixed bracket 29 on the surface of plate 3 14 fixes the rotary joint 19 to ensure its stability. A bellows cover 25 is set between the fixed ring 23 on one side of plate 1 2 and plate 1 2 to prevent paint from contaminating the equipment. The round tube to be painted is clamped in the center of multiple grippers 5, so that the center of the round tube is directly opposite the spray head 18. Through the cooperation of the above structures, the stable clamping of the tube is achieved, and the spray head 18 extends into the tube and rotates and moves to spray. This solves the problems of high labor intensity and low efficiency of manual operation, as well as the uneven spraying and dead corners of traditional equipment, and improves the spraying quality and efficiency.

[0026] Furthermore, the rotation of the turntable 6 is driven by the geared motor 12 and the worm gear 11, which can precisely adjust the position of the gripper 5 to adapt to various pipe fittings and expand the applicability of the device. The cooperation between the guide rod 22 and the guide hole 21, as well as the setting of the rotating bearing 24, allow the round rod 17 to maintain a good linear motion trajectory during movement, while being able to rotate freely, ensuring that the paint spray head 18 is stable and reliable when it is inserted into the pipe fitting, and avoiding spraying deviation caused by shaking.

[0027] The bellows cover 25 protects components such as the guide rod 22 and the round rod 17. The fixed bracket 29 fixes the rotary joint 19, preventing the pulling force generated by the hose 20 when the round rod 17 rotates from affecting the movement of the spraying device, thus ensuring the continuity and stability of the paint supply. The drive motor 26 drives the round rod 17 to rotate through gear transmission, enabling the paint spray head 18 to spray the inner wall of the pipe at a uniform speed and angle, further improving the uniformity and integrity of the coating.

[0028] The working principle of the above embodiment is as follows: The pipe to be sprayed is placed between multiple grippers 5. The reduction motor 12 is started, and the worm gear 11 drives the turntable 6 to rotate. Through the cooperation of the guide post 9 and the arc-shaped slide groove 7, the grippers 5 slide in the first slide groove 4 to clamp and fix the pipe. The electric telescopic rod 15 is started to push the third plate 14 to move along the slide rail 13. The third plate 14 drives the round rod 17 and the spray head 18 to move into the pipe through the fixed ring 23 and the guide rod 22. At the same time, the drive motor 26 drives the pipe to move inward. The meshing of gear 27 and gear 28 drives the round rod 17 to rotate, causing the paint spray head 18 to rotate. The external paint supply equipment supplies paint to the round rod 17 through the hose 20 and the rotary joint 19. The paint is sprayed out from the paint spray head 18 to coat the inner wall of the pipe. During the movement and rotation, the guide rod 22 slides in the guide hole 21, and in conjunction with the rotary bearing 24, it ensures the stable movement and rotation of the round rod 17. The bellows cover 25 prevents paint from contaminating the equipment, and the fixed bracket 29 ensures the stability of the rotary joint 19.

[0029] The installation, connection, or setting methods disclosed in this embodiment are all common mechanical connection methods. As long as they can achieve their beneficial effects, they can be implemented. Therefore, this embodiment will not elaborate on their specific structural composition and working principle.

[0030] If certain terms are used in the specification and claims to refer to specific components, those skilled in the art will understand that hardware manufacturers may use different names to refer to the same component. This specification and claims do not distinguish components based on differences in name, but rather on differences in function. The term "comprising" as used throughout the specification and claims is an open-ended term and should be interpreted as "comprising but not limited to".

[0031] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A device for automatic spraying of the inner wall of a pipe, characterized in that: Includes a support (1), one end of which is fixedly mounted a first plate (2) and a second plate (3). The surface of the first plate (2) is provided with multiple first sliding grooves (4), and a gripper (5) is slidably connected in the first sliding groove (4). The surface of the second plate (3) near the surface of the first plate (2) is rotatably connected to a turntable (6), and the surface of the turntable (6) is provided with multiple arc-shaped sliding grooves (7). A sliding bearing (16) is fixedly mounted in the center of the first plate (2), and a round rod (17) is slidably connected in the sliding bearing (16). The round rod (17) is hollow inside. A paint spray head (18) is fixedly installed at one end of the round rod (17) near the gripper (5). A rotary joint (19) is rotatably connected to the other end of the round rod (17). The rotary joint (19) is connected to an external paint supply device through a hose (20). A slide rail (13) is fixedly installed on the upper surface of the support (1). A No. 3 plate (14) is slidably connected to the surface of the slide rail (13). An electric telescopic rod (15) is fixedly installed at one end of the support (1) away from the No. 3 plate (14). The other end of the electric telescopic rod (15) is fixedly connected to the bottom end of the No. 3 plate (14).

2. The automatic inner wall spraying device for pipe fittings according to claim 1, characterized in that: The first slide groove (4) is evenly distributed around the center of the first plate (2). A slider (8) is slidably connected in the first slide groove (4). A guide post (9) is fixedly connected to one side of the slider (8) near the second plate (3). The side of the slider (8) away from the second plate (3) is fixedly connected to the gripper (5). The guide post (9) is inserted into the arc-shaped slide groove (7).

3. The automatic inner wall spraying device for pipe fittings according to claim 1, characterized in that: The turntable (6) has a worm gear (10) on its outer side. A worm (11) for driving the turntable (6) to rotate is provided between the second plate (3) and the first plate (2). A reduction motor (12) is fixedly installed at the bottom of the first plate (2) and the second plate (3). The worm (11) is fixedly connected to the output shaft of the reduction motor (12).

4. The automatic inner wall spraying device for pipe fittings according to claim 1, characterized in that: The surface of the first plate (2) is provided with multiple guide holes (21). The guide holes (21) are evenly distributed around the sliding bearing (16). A guide rod (22) is slidably connected in the guide hole (21). Both ends of the multiple guide rods (22) are connected by a fixed ring (23). The fixed ring (23) and the rod (17) are connected by a rotating bearing (24).

5. The apparatus according to claim 4, wherein: A gusset cover (25) for preventing paint is provided between the fixing ring (23) on one side of the first plate (2) and the first plate (2), and the fixing ring (23) on one side of the third plate (14) is fixedly installed with the third plate (14).

6. The apparatus according to claim 1, wherein: A drive motor (26) is fixedly installed on one side of the third plate (14) near the first plate (2). The output shaft of the drive motor (26) passes through the third plate (14). A second gear (27) is fixedly installed on the output shaft of the drive motor (26). A first gear (28) is fixedly connected to one end of the round rod (17) near the third plate (14). The first gear (28) meshes with the second gear (27).

7. The apparatus according to claim 1, wherein: A fixed bracket (29) is fixedly connected to the surface of the No. 3 plate (14), and the fixed bracket (29) is fixedly connected to the outer surface of the rotary joint (19).

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