Flaring equipment for PVC-O pipe

Abstract

The utility model relates to the field of PVC-O pipes, and discloses a flaring device for PVC-O pipes, which comprises a support plate, the support plate is fixed on the top surface of a base, the front side of the support plate is provided with a movable hole, the rear side of the support plate is fixedly provided with a first cylinder, one end of a telescopic rod of the first cylinder penetrates through the movable hole and is fixedly provided with a baffle, and the other end of the telescopic rod of the first cylinder penetrates through the baffle. A flaring head is fixed to the front side of the baffle, an L-shaped frame is fixed to the top face of the base, and a water tank is fixed to the top face of the L-shaped frame. According to the pipe flaring device, the supporting plate, the baffle, the flaring head, the flaring pipe and the heating pipe are used in cooperation, pipe flaring operation can be conducted on a pipe, meanwhile, the L-shaped frame, the water tank, the water conveying pipe, the first water pump and the spray head are used in cooperation, the flaring position of the pipe can be rapidly cooled, flaring size rebounding or deformation is prevented, and it is ensured that the flaring shape is stable; the quality and the stability of the flaring pipe are improved, and meanwhile, the production efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the technical field of PVC-O pipes, specifically to a flaring device for PVC-O pipes. Background Technology

[0002] PVC-O (biaxially oriented polyvinyl chloride) pipes are widely used in urban water supply systems in developed countries due to their excellent pressure resistance, economy, and safety. They are a substitute for traditional PVC-U pipes, PE pipes, and ductile iron pipes in the water supply field. When using PVC-O pipes, it is often necessary to flare both ends to facilitate connections between pipes.

[0003] According to Chinese Patent No. CN215396880U, a special equipment for flaring and forming PVC-O pipes includes a base plate, on which a clamping mechanism and an extrusion mechanism are deployed. The clamping mechanism includes a vertical plate fixed to the base plate. A window is opened at the upper end of the vertical plate, and two semi-cylindrical clamps are deployed inside the window for clamping the pipes. The upper and lower ends of the clamps are connected to the sidewalls of the window via adjusting rods. The adjusting rods stretch the upper and lower ends of the clamps, thereby enabling the clamps to fit onto pipes of different diameters. The extrusion mechanism includes a support that moves along a slide groove. A support arm is fixed at the upper end of the support, and a displacement plate is fixed at the upper end of the support arm. A flaring device is embedded in the middle of the displacement plate and is positioned opposite to the clamps. The flaring device has an air outlet and a vent pipe at its rear end, which is connected to an external steam generator.

[0004] In the above scheme, the pipe is flared using a flaring device, air guide tube, screw, adjusting rod and fixing sleeve. This results in the following disadvantages: after the pipe is flared, the equipment cannot cool the flared part of the pipe, which makes the flared part of the pipe prone to springback or deformation, thereby reducing the quality and stability of the flared pipe. Utility Model Content

[0005] The purpose of this invention is to provide a flaring device for PVC-O pipes, in order to solve the problem that after the device performs flaring operations on the pipes, it cannot cool down the flared part of the pipe, which makes the flared pipe size prone to springback or deformation, thereby reducing the quality and stability of the flared pipe.

[0006] To achieve the above-mentioned utility model objectives, the present utility model adopts the following technical solution: a flaring device for PVC-O pipes, comprising a support plate fixed to the top surface of a base, a movable hole on the front side of the support plate, a PLC controller fixed to the front side of the base, a first cylinder fixed to the rear side of the support plate, one end of the telescopic rod of the first cylinder passing through the movable hole and fixed with a baffle, the first cylinder being electrically connected to the PLC controller, a flaring head fixed to the front side of the baffle, a flaring tube fixed to the front end of the flaring head, a heating tube fixed inside the flaring tube, the heating tube being electrically connected to the PLC controller, an L-shaped frame fixed to the top surface of the base, a water tank fixed to the top surface of the L-shaped frame, a water supply pipe fixedly connected between the water tank and the L-shaped frame, a first water pump mounted on the water supply pipe, the first water pump being electrically connected to the PLC controller, and a nozzle fixed to the bottom end of the water supply pipe.

[0007] Preferably, a water storage tank is provided on the top surface of the base, and a connecting pipe is fixedly connected between the water storage tank and the water tank. A second water pump is provided on the connecting pipe, and the second water pump is electrically connected to the PLC controller.

[0008] Preferably, a fixing plate is fixed to the top surface of the base, a first clamping plate is fixed to the top surface of the fixing plate, an L-shaped plate is fixed to the top surface of the base, a second cylinder is fixed to the inner top surface of the L-shaped plate, the second cylinder is electrically connected to the PLC controller, and a second clamping plate is fixed to one end of the telescopic rod of the second cylinder.

[0009] Preferably, rubber pads are fixed to the inner walls of the first clamping plate and the second clamping plate respectively.

[0010] Preferably, a connecting plate is fixed to the rear side of the L-shaped plate, and an infrared temperature sensor is fixed to the bottom surface of the connecting plate. The infrared temperature sensor is electrically connected to the PLC controller.

[0011] Preferably, a limiting hole is provided on the front side of the support plate, and a limiting post is fixed on the rear side of the baffle, the limiting post being slidably inserted into the limiting hole.

[0012] Compared with existing technologies, a flaring device for PVC-O pipes that adopts the above technical solution has the following advantages:

[0013] I. In use, the operator first places the flared end of the pipe onto the outer wall of the flared tube. Then, the heating element is activated to preheat the flared area of ​​the pipe until it reaches a suitable softening temperature. Next, the first cylinder is activated, and its telescopic rod pushes the baffle and the flared end and flared tube inside the pipe until the flared end contacts the baffle, completing the flaring operation. After flaring, the operator starts the first water pump, which delivers cooling water from the water tank to the nozzle through the water pipe, providing uniform and rapid cooling to the flared area of ​​the pipe. The combined use of the support plate, baffle, flared end, flared tube, and heating element enables the flaring of pipes. Simultaneously, the coordinated use of the L-shaped frame, water tank, water pipe, first water pump, and nozzle facilitates rapid cooling of the flared area, preventing flaring size rebound or deformation, ensuring stable flaring shape, improving the quality and stability of the flared pipe, and increasing production efficiency.

[0014] Second, during use, the combined use of the water storage tank, connecting pipe, and second water pump facilitates the collection of used cooling water and its return to the water tank, achieving the recycling of cooling water. The operator first places the pipe inside the first clamping plate, then activates the second cylinder to move the second clamping plate downwards to engage with the first clamping plate, clamping and fixing the pipe for subsequent flaring.

[0015] Thirdly, during use, the rubber pads provide protection, preventing scratches or damage to the pipe surface from direct contact with the clamps, while also increasing friction and improving stability during clamping. The infrared temperature sensor allows for real-time monitoring of the pipe's flared end temperature. When the temperature reaches the set value, the information is transmitted to the PLC controller, automatically stopping the heating element and triggering the first cylinder to perform the flaring operation, reducing the workload for workers. The use of limiting holes and limiting posts effectively limits the baffle, preventing it from shifting or shaking, thus improving the stability of the baffle, flaring end, and flared pipe during movement. Attached Figure Description

[0016] Figure 1 This is a three-dimensional schematic diagram of an embodiment.

[0017] Figure 2 This is an exploded view of an embodiment.

[0018] Figure 3 This is an exploded view of the L-shaped frame in the embodiment.

[0019] Figure 4 Examples Figure 2 Enlarged diagram of point A in the middle.

[0020] In the diagram: 1. Support plate; 2. Base; 3. Movable hole; 4. First cylinder; 5. Baffle; 6. Flared head; 7. Flared pipe; 8. Heating pipe; 9. L-shaped frame; 10. Water tank; 11. Water supply pipe; 12. First water pump; 13. Nozzle; 14. Water storage tank; 15. Connecting pipe; 16. Second water pump; 17. Fixing plate; 18. First clamping plate; 19. L-shaped plate; 20. Second cylinder; 21. Second clamping plate; 22. Rubber pad; 23. Connecting plate; 24. Infrared temperature sensor; 25. Limiting hole; 26. Limiting post. Detailed Implementation

[0021] The preferred embodiments of this utility model will now be described in detail with reference to the accompanying drawings.

[0022] like Figures 1-4 As shown, a flaring device for PVC-O pipes includes a support plate 1, which is fixed to the top surface of a base 2. A movable hole 3 is provided on the front side of the support plate 1. A PLC controller (Siemens S7-200) is fixed to the front side of the base 2. A first cylinder 4 is fixed to the rear side of the support plate 1. One end of the telescopic rod of the first cylinder 4 passes through the movable hole 3 and is fixed with a baffle 5. The first cylinder 4 is electrically connected to the PLC controller. A flaring head 6 is fixed to the front side of the baffle 5. A flaring tube 7 is fixed to the front end of the flaring head 6. A heating tube 8 is fixed inside the flaring tube 7 and is electrically connected to the PLC controller. An L-shaped frame 9 is fixed to the top surface of the base 2. A water tank 10 is fixed to the top surface of the L-shaped frame 9. A water supply pipe 11 connects and is fixed between the water tank 10 and the L-shaped frame 9. A first water pump 12 is installed on the water supply pipe 11 and is electrically connected to the PLC controller. A nozzle 13 is fixed to the bottom end of the water supply pipe 11.

[0023] In use, the operator first places the flared end of the pipe onto the outer wall of the flared pipe 7, then starts the heating pipe 8 to preheat the flared area of ​​the pipe until it reaches a suitable softening temperature. Then, the operator starts the first cylinder 4, whose telescopic rod pushes the baffle 5 and the flared end 6 and the flared pipe 7 into the pipe until the flared end contacts the baffle 5, completing the flaring operation. After the flaring is completed, the operator starts the first water pump 12 to transport the cooling water inside the water tank 10 to the nozzle 13 through the water pipe 11, so as to cool the flared area of ​​the pipe evenly and quickly. By using the support plate 1, baffle 5, flaring head 6, flaring pipe 7 and heating pipe 8 together, the pipe can be flared. At the same time, by using the L-shaped frame 9, water tank 10, water supply pipe 11, first water pump 12 and nozzle 13 together, the flared part of the pipe can be cooled quickly to prevent the flared size from springing back or deforming, ensuring the stability of the flared shape, improving the quality and stability of the flared pipe, and increasing production efficiency.

[0024] like Figures 1-4As shown, a water storage tank 14 is provided on the top surface of the base 2. A connecting pipe 15 is fixed between the water storage tank 14 and the water tank 10. A second water pump 16 is provided on the connecting pipe 15. The second water pump 16 is electrically connected to the PLC controller.

[0025] During use, the combined use of the water storage tank 14, the connecting pipe 15, and the second water pump 16 facilitates the collection of used cooling water and its return to the interior of the water tank 10, thereby achieving the recycling of cooling water.

[0026] like Figure 1 , Figure 2 and Figure 4 As shown, a fixing plate 17 is fixed to the top surface of the base 2, a first clamping plate 18 is fixed to the top surface of the fixing plate 17, an L-shaped plate 19 is fixed to the top surface of the base 2, a second cylinder 20 is fixed to the inner top surface of the L-shaped plate 19, the second cylinder 20 is electrically connected to the PLC controller, a second clamping plate 21 is fixed to one end of the telescopic rod of the second cylinder 20, and rubber pads 22 are fixed to the inner walls of the first clamping plate 18 and the second clamping plate 21 respectively.

[0027] In use, the operator first places the pipe inside the first clamping plate 18, then activates the second cylinder 20 to move the second clamping plate 21 downwards to engage with the first clamping plate 18, thus clamping and fixing the pipe for subsequent flaring. The rubber pad 22 provides protection, preventing the pipe surface from being scratched or damaged due to direct contact with the clamping plate, while also increasing friction and improving stability during clamping.

[0028] like Figure 1 , Figure 2 and Figure 4 As shown, a connecting plate 23 is fixed to the rear side of the L-shaped plate 19, and an infrared temperature sensor 24 is fixed to the bottom surface of the connecting plate 23. The infrared temperature sensor 24 is electrically connected to the PLC controller. A limit hole 25 is opened on the front side of the support plate 1, and a limit post 26 is fixed to the rear side of the baffle 5. The limit post 26 is slidably inserted into the limit hole 25.

[0029] During use, the infrared temperature sensor 24 facilitates real-time monitoring of the temperature at the flared end of the pipe. When the temperature reaches the set value, the information is transmitted to the PLC controller, which automatically controls the heating element 8 to stop heating and triggers the first cylinder 4 to perform the flaring operation, reducing the labor intensity of the workers. The use of the limiting hole 25 and the limiting post 26 helps to limit the baffle 5, preventing it from shifting or shaking, thereby improving the stability of the baffle 5, the flared end 6, and the flared pipe 7 during movement.

[0030] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A flaring device for PVC-O pipes, comprising a support plate (1) fixed to the top surface of a base (2), characterized in that, The support plate (1) has a movable hole (3) on its front side. A PLC controller is fixed to the front side of the base (2). A first cylinder (4) is fixed to the rear side of the support plate (1). One end of the telescopic rod of the first cylinder (4) passes through the movable hole (3) and is fixed with a baffle (5). The first cylinder (4) is electrically connected to the PLC controller. A flared head (6) is fixed to the front side of the baffle (5). A flared tube (7) is fixed to the front end of the flared head (6). A heating tube (8) is fixed inside, and the heating tube (8) is electrically connected to the PLC controller. An L-shaped frame (9) is fixed on the top surface of the base (2), and a water tank (10) is fixed on the top surface of the L-shaped frame (9). A water supply pipe (11) is fixed between the water tank (10) and the L-shaped frame (9). A first water pump (12) is provided on the water supply pipe (11), and the first water pump (12) is electrically connected to the PLC controller. A nozzle (13) is fixed at the bottom end of the water supply pipe (11).

2. The flaring device for PVC-O pipes according to claim 1, characterized in that: The top surface of the base (2) is provided with a water storage tank (14), and a connecting pipe (15) is fixedly connected between the water storage tank (14) and the water tank (10). A second water pump (16) is provided on the connecting pipe (15), and the second water pump (16) is electrically connected to the PLC controller.

3. The flaring device for PVC-O pipes according to claim 2, characterized in that: A fixing plate (17) is fixed on the top surface of the base (2), a first clamping plate (18) is fixed on the top surface of the fixing plate (17), an L-shaped plate (19) is fixed on the top surface of the base (2), a second cylinder (20) is fixed on the inner top surface of the L-shaped plate (19), the second cylinder (20) is electrically connected to the PLC controller, and a second clamping plate (21) is fixed at one end of the telescopic rod of the second cylinder (20).

4. A flaring device for PVC-O pipes according to claim 3, characterized in that: Rubber pads (22) are fixed to the inner walls of the first clamping plate (18) and the second clamping plate (21).

5. A flaring device for PVC-O pipes according to claim 4, characterized in that: A connecting plate (23) is fixed to the rear side of the L-shaped plate (19), and an infrared temperature sensor (24) is fixed to the bottom surface of the connecting plate (23). The infrared temperature sensor (24) is electrically connected to the PLC controller.

6. The flaring device for PVC-O pipes according to claim 1, characterized in that: The support plate (1) has a limiting hole (25) on its front side, and the baffle (5) has a limiting post (26) fixed on its rear side. The limiting post (26) is slidably inserted into the limiting hole (25).

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