Internal spraying device for steel-plastic composite pipe

Abstract

The utility model discloses an inner spraying device for a steel-plastic composite pipe, which comprises a rack, a bearing frame arranged on the inner side of the rack, a material storage tank arranged at the top end of the bearing frame, a bottom plate arranged on the inner wall of one side of the upper end of the rack, a top seat arranged above the rack, and electric telescopic rods arranged at the corners of the bottom end of the top seat. A first motor is installed on one side of the bottom end of the top base through a support, a positioning base is arranged on the other side of the bottom end of the top base, a lead screw is arranged at one end of the first motor, and guide rods are fixed to the positions, on the two sides of the lead screw, of the inner wall of the positioning base. A nut frame is installed on the outer wall of one side of the lead screw in a threaded mode. According to the spraying device, the purpose of automatically conveying and feeding the coating is achieved, the quality of the coating is ensured, the convenience of spraying the steel-plastic composite pipe when the spraying device is used is improved, and the spraying effect of the spraying device on the inner wall of the steel-plastic composite pipe when the spraying device is used is ensured.

Description

Technical Field

[0001] This utility model relates to the field of pipeline treatment technology, specifically to an internal spraying device for steel-plastic composite pipes. Background Technology

[0002] Steel-plastic composite pipe is a type of pipe with a steel pipe as the base material and a layer of plastic anti-corrosion layer fused to the inner and outer surfaces of the steel pipe through a specific process. This type of pipe has excellent anti-corrosion performance and a long service life, and is widely used in indoor and outdoor and buried pipeline systems. However, when manufacturing steel-plastic composite pipe, the inner wall of the steel-plastic composite pipe needs to be treated with a spraying process. Therefore, it is particularly important to develop an internal spraying device for steel-plastic composite pipe.

[0003] Referring to the CN221387050U specification, an internal spraying device for steel-plastic composite pipes includes an operating table, a composite pipe, a spraying device, and a threaded screw. Clamping components for holding and fixing the composite pipe are fixed on both sides of the operating table, and a functional plate is fixed to the upper surface of the operating table. A movable column is slidably connected to the lower surface of the operating table, and a motor is fixedly installed on the top of the movable column. The threaded screw passes through the functional plate and is threadedly connected to it. A spraying plate is fixedly connected to one side of the spraying device, and several nozzles are installed on the periphery of the spraying plate. The motor drives the threaded screw to rotate stably, allowing the spraying device to move axially along the composite pipe while simultaneously rotating, achieving synchronous rotational spraying of the inner wall of the composite pipe while the nozzles move laterally. The device has a simple structure, is easy to operate, and has high work efficiency. However, while this device can be widely used, it is generally not convenient for automated coating feeding and delivery, and it is difficult to guarantee the quality of the coating, requiring further improvement. Utility Model Content

[0004] The purpose of this utility model is to provide an internal spraying device for steel-plastic composite pipes, so as to solve the problem that although the device proposed in the background art can be applied well, it is usually not convenient to automatically transport and feed the coating, and it is difficult to guarantee the quality of the coating.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an internal spraying device for steel-plastic composite pipes, comprising a frame, a support frame on the inner side of the frame, a material storage tank at the top of the support frame, a base plate on one inner wall of the upper end of the frame, a top seat above the frame, and an electric telescopic rod at each corner of the bottom end of the top seat. The bottom ends of the electric telescopic rods are connected to the top end of the frame and the top end of the base plate, respectively. A first motor is mounted on one side of the bottom end of the top seat via a bracket, and a positioning seat is provided on the other side of the bottom end of the top seat. A lead screw is provided at one end of the first motor, and the end of the lead screw away from the first motor is rotatably connected to the inner wall of the positioning seat. Guide rods are fixed on the inner walls of the positioning seats on both sides. A nut bracket is threaded onto the outer wall of one side of the lead screw. The top of the nut bracket passes through the top seat and is provided with a material passage pipe. The nut bracket is movably connected to the guide rod. A nozzle is installed at the end of the material passage pipe away from the nut bracket. A hollow column is provided at the center of the top of the storage tank. A paint pump is installed at the top of the hollow column. A conveying pipe is provided at one end of the paint pump. A bend is installed at the other end of the paint pump. The bend, away from the paint pump, passes through the hollow column and extends to the bottom of the storage tank. A second motor is installed on the outer wall of one side of the lower end of the storage tank. One end of the second motor extends into the interior of the storage tank and is provided with a stirring paddle.

[0006] Preferably, a flexible hose is installed at the end of the conveying pipe away from the paint pump, and the end of the flexible hose away from the conveying pipe is connected to the end of the feed pipe. The flexible hose is used to connect the conveying pipe and the feed pipe.

[0007] Preferably, an L-shaped frame is provided at the top of the frame on one side of the base plate, and a transmission frame is provided on the inner wall of the upper end of the L-shaped frame. The transmission frame is provided to accommodate the worm and worm wheel.

[0008] Preferably, a worm gear is rotatably mounted inside the transmission frame, and a worm wheel is rotatably mounted inside the transmission frame on one side of the worm gear. The worm gear is configured to drive the worm wheel to rotate slowly.

[0009] Preferably, a rotating shaft is mounted on the outer surface of the worm gear, and the end of the rotating shaft away from the worm gear extends to the outside of the transmission frame and is provided with a three-jaw chuck. The three-jaw chuck is used to clamp and fix one end of the steel-plastic composite pipe.

[0010] Preferably, a third motor is installed at the bottom of the transmission frame, and the top of the third motor is connected to the bottom of the worm gear. The third motor is configured to drive the worm gear to rotate.

[0011] Compared with the prior art, the beneficial effects of this utility model are: the internal spraying device of the steel-plastic composite pipe not only achieves the purpose of automatically conveying and feeding the coating material, but also ensures the quality of the coating material, improves the convenience of spraying the steel-plastic composite pipe when using the spraying device, and ensures the spraying effect on the inner wall of the steel-plastic composite pipe when using the spraying device.

[0012] (1) The stirring paddle is driven by the second motor to rotate, so that the stirring paddle can stir the paint stored in the storage tank, thereby increasing the activity of the paint molecules and reducing the precipitation of the paint. Then, the paint pump is started, so that the paint is transported through the bend pipe and the conveying pipe and hose to the inside of the conveying pipe, thereby achieving the purpose of automatically conveying and feeding the paint, and ensuring the quality of the paint.

[0013] (2) The steel-plastic composite pipe is clamped and fixed by a three-jaw chuck, and the top seat is raised and lowered by an electric telescopic rod so that the nozzle is aligned with the left side of the steel-plastic composite pipe. Then the first motor is started so that it drives the lead screw to rotate so that the nut frame slides to the right on the outer wall of the lead screw and the guide rod, and the nozzle is moved into the inside of the steel-plastic composite pipe. When the paint is delivered into the inside of the feed pipe and sprayed out from the spray hole on the outer wall of the nozzle, the inner wall of the steel-plastic composite pipe can be sprayed, thereby improving the convenience of spraying the steel-plastic composite pipe when using the spraying device.

[0014] (3) The worm is driven to rotate by the third motor, so that the worm drives the worm wheel to rotate slowly, so that the worm wheel drives the three-jaw chuck to rotate synchronously via the rotating shaft. This allows the steel-plastic composite pipe held by the three-jaw chuck to be flipped. Since the nozzle is inside the steel-plastic composite pipe and moves slowly to the right, the inner wall of the steel-plastic composite pipe can be sprayed in all directions, thus ensuring the spraying effect on the inner wall of the steel-plastic composite pipe when the spraying device is used. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0016] Figure 2 This is a front view structural diagram of the present invention;

[0017] Figure 3 This is a schematic diagram of the top seat structure of this utility model from below;

[0018] Figure 4 This utility model Figure 1 Enlarged structural diagram at point A in the middle.

[0019] In the diagram: 1. Frame; 2. Support frame; 3. Storage tank; 4. Hollow column; 5. Paint pump; 6. Feed pipe; 7. Electric telescopic rod; 8. Top seat; 9. First motor; 10. Nut frame; 11. Hose; 12. Feed pipe; 13. Nozzle; 14. Base plate; 15. L-shaped frame; 16. Transmission frame; 17. Three-jaw chuck; 18. Bend; 19. Second motor; 20. Agitator; 21. Lead screw; 22. Guide rod; 23. Positioning seat; 24. Third motor; 25. Worm gear; 26. Worm wheel; 27. Rotating shaft. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.

[0021] Please see Figure 1-4 An embodiment of this utility model is provided: an internal spraying device for steel-plastic composite pipe, including a frame 1, a support frame 2 provided on the inner side of the frame 1, a material storage tank 3 provided at the top of the support frame 2, a bottom plate 14 provided on the inner wall of one side of the upper end of the frame 1, an L-shaped frame 15 provided at the top of the frame 1 on one side of the bottom plate 14, and a transmission frame 16 provided on the inner wall of the upper end of the L-shaped frame 15.

[0022] In use, the transmission frame 16 is provided to accommodate the worm 25 and the worm wheel 26.

[0023] A worm gear 25 is rotatably mounted inside the transmission frame 16, and a worm wheel 26 is rotatably mounted inside the transmission frame 16 on one side of the worm gear 25.

[0024] In use, the worm gear 25 is designed to drive the worm wheel 26 to rotate slowly.

[0025] A rotating shaft 27 is mounted on the outer surface of the worm gear 26. The end of the rotating shaft 27 away from the worm gear 26 extends to the outside of the transmission frame 16 and is provided with a three-jaw chuck 17.

[0026] When in use, the three-jaw chuck 17 is used to clamp and fix one end of the steel-plastic composite pipe.

[0027] A third motor 24 is installed at the bottom of the transmission frame 16, and the top of the third motor 24 is connected to the bottom of the worm gear 25.

[0028] In use, the third motor 24 is set up to drive the worm gear 25 to rotate;

[0029] A top seat 8 is provided above the frame 1. Electric telescopic rods 7 are provided at the corners of the bottom of the top seat 8. The bottom ends of the electric telescopic rods 7 are connected to the top of the frame 1 and the top of the base plate 14, respectively. A first motor 9 is mounted on one side of the bottom of the top seat 8 via a bracket. A positioning seat 23 is provided on the other side of the bottom of the top seat 8. A lead screw 21 is provided at one end of the first motor 9. The end of the lead screw 21 away from the first motor 9 is rotatably connected to the inner wall of the positioning seat 23. Guide rods 22 are fixed on the inner walls of the positioning seats 23 on both sides of the lead screw 21. A nut bracket 10 is threaded on the outer wall of one side. The top of the nut bracket 10 passes through the top seat 8 and is provided with a material passage pipe 12. The nut bracket 10 is movably connected to the guide rod 22. A nozzle 13 is installed at the end of the material passage pipe 12 away from the nut bracket 10. A hollow column 4 is provided at the center of the top of the storage tank 3. A paint pump 5 is installed at the top of the hollow column 4. A conveying pipe 6 is provided at one end of the paint pump 5. A hose 11 is installed at the end of the conveying pipe 6 away from the paint pump 5. The end of the hose 11 away from the conveying pipe 6 is connected to one end of the material passage pipe 12.

[0030] In use, the flexible hose 11 is used to connect the material conveying pipe 6 and the material passage pipe 12.

[0031] The other end of the paint pump 5 is equipped with a bend 18. The end of the bend 18 away from the paint pump 5 passes through the hollow column 4 and extends to the bottom of the storage tank 3. A second motor 19 is installed on the outer wall of one side of the lower end of the storage tank 3. One end of the second motor 19 extends into the interior of the storage tank 3 and is equipped with a stirring paddle 20.

[0032] In this embodiment, the paint is first injected into the storage tank 3. The second motor 19 drives the stirring paddle 20 to rotate, which stirs the paint stored in the storage tank 3 to increase the activity of the paint molecules and reduce the precipitation phenomenon. Then, the paint pump 5 is started, which transports the paint through the bend pipe 18 and the conveying pipe 6 and hose 11 to the inside of the feed pipe 12 for automatic paint feeding. After that, the three-jaw chuck 17 clamps and fixes one end of the steel-plastic composite pipe. Then, the electric telescopic rod 7 drives the top seat 8 to rise and fall so that the nozzle 13 is aligned with the left side of the steel-plastic composite pipe. Finally, the first motor 9 is started, which drives the lead screw 21 to rotate. The nut bracket 10 slides to the right on the outer wall of the lead screw 21 and guide rod 22, thus moving the nozzle 13 into the interior of the steel-plastic composite pipe. When the paint is delivered into the interior of the feed pipe 12 and sprayed out from the nozzle hole on the outer wall of the nozzle 13, the inner wall of the steel-plastic composite pipe can be sprayed. Finally, the third motor 24 drives the worm gear 25 to rotate, which in turn drives the worm wheel 26 to rotate slowly. The worm wheel 26 drives the three-jaw chuck 17 to rotate synchronously via the rotating shaft 27, thus flipping the steel-plastic composite pipe held by the three-jaw chuck 17. Because the nozzle 13 is inside the steel-plastic composite pipe, it continues to move slowly to the right to spray the inner wall of the steel-plastic composite pipe from all directions, thereby completing the use of the spraying device.

Claims

1. An internal spraying device for steel-plastic composite pipes, characterized in that: The system includes a frame (1), with a support frame (2) on the inner side of the frame (1). A storage tank (3) is located at the top of the support frame (2). A base plate (14) is located on the inner wall of one side of the upper end of the frame (1). A top seat (8) is located above the frame (1). An electric telescopic rod (7) is located at the corner of the bottom end of the top seat (8). The bottom ends of the electric telescopic rods (7) are connected to the top end of the frame (1) and the top end of the base plate (14), respectively. A first motor (9) is mounted on one side of the bottom end of the top seat (8) via a bracket. A positioning seat (23) is located on the other side of the bottom end of the top seat (8). A lead screw (21) is located at one end of the first motor (9). The end of the lead screw (21) away from the first motor (9) is rotatably connected to the inner wall of the positioning seat (23). Guide rods (22) are fixed on the inner walls of the positioning seats (23) on both sides of the lead screw (21). (21) A nut bracket (10) is threaded on one side of the outer wall. The top of the nut bracket (10) passes through the top seat (8) and is provided with a feed pipe (12). The nut bracket (10) is movably connected to the guide rod (22). A nozzle (13) is installed at the end of the feed pipe (12) away from the nut bracket (10). A hollow column (4) is provided at the center of the top of the storage tank (3). A paint pump (5) is installed at the top of the hollow column (4). A feed pipe (6) is provided at one end of the paint pump (5). A bend (18) is installed at the other end of the paint pump (5). The bend (18) passes through the hollow column (4) and extends to the bottom of the storage tank (3) at the end away from the paint pump (5). A second motor (19) is installed on one side of the outer wall of the lower end of the storage tank (3). One end of the second motor (19) extends into the interior of the storage tank (3) and is provided with a stirring paddle (20).

2. The internal spraying device for steel-plastic composite pipes according to claim 1, characterized in that: A hose (11) is installed at the end of the conveying pipe (6) away from the paint pump (5), and the end of the hose (11) away from the conveying pipe (6) is connected to one end of the feed pipe (12).

3. The internal spraying device for steel-plastic composite pipes according to claim 1, characterized in that: The top of the frame (1) on one side of the base plate (14) is provided with an L-shaped frame (15), and a transmission frame (16) is provided on the inner wall of the upper end of the L-shaped frame (15).

4. The internal spraying device for steel-plastic composite pipe according to claim 3, characterized in that: A worm gear (25) is rotatably mounted inside the transmission frame (16), and a worm wheel (26) is rotatably mounted inside the transmission frame (16) on one side of the worm gear (25).

5. The internal spraying device for steel-plastic composite pipes according to claim 4, characterized in that: A rotating shaft (27) is mounted on the outer surface of the worm gear (26). The end of the rotating shaft (27) away from the worm gear (26) extends to the outside of the transmission frame (16) and is provided with a three-jaw chuck (17).

6. The internal spraying device for steel-plastic composite pipes according to claim 4, characterized in that: A third motor (24) is installed at the bottom of the transmission frame (16), and the top of the third motor (24) is connected to the bottom of the worm (25).

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