Polyethylene pipe flaring device with high applicability

Abstract

The utility model provides a polyethylene pipe flaring device with high applicability, which relates to the technical field of polyethylene pipe processing and comprises a bottom plate, a vertical plate and a flaring mechanism, the vertical plate is slidably mounted on the upper surface of the bottom plate, and the flaring mechanism is arranged on the vertical plate and used for flaring a polyethylene pipe. The vertical plate is provided with a hot air assembly for heating a polyethylene pipe orifice, the bottom plate is provided with a clamping assembly corresponding to the flaring mechanism in position, the flaring mechanism comprises a rotary drum rotationally arranged on the vertical plate, and the outer surface of the end, close to the clamping assembly, of the rotary drum is rotationally sleeved with a sleeve. According to the polyethylene pipe flaring device with the high applicability, after a polyethylene pipe is flared, the inner wall of a pipe opening can be guaranteed to be smooth, the polyethylene pipe flaring device is suitable for polyethylene pipes with different diameters, the polyethylene pipes with different diameters can be clamped and fixed, and better applicability is achieved.

Description

Technical Field

[0001] This utility model relates to a flaring device, specifically a highly applicable polyethylene pipe flaring device, belonging to the field of polyethylene pipe processing technology. Background Technology

[0002] Polyethylene pipes, also known as PE pipes, have good thermoplasticity and corrosion resistance, and are widely used in water supply, sewage disposal, and gas transmission. To facilitate pipe connection, butt joints are needed at the ends of the pipes. This also reduces the use of pipe fittings and prevents gaps from creating a poor seal in the pipe connection. Therefore, the ends of the pipes need to be flared, increasing both the inner and outer diameters of the pipe end. This allows the end of another pipe to be fitted into the flared end, improving the connection and sealing.

[0003] Chinese Patent Publication CN218557951U discloses a plastic pipe flaring device. It utilizes a quadrilateral component, employing the principle of a parallelogram, and uses a support block, two connecting rods, and a connecting column to form a parallelogram mechanism. The flaring action of the support block is achieved by changing one end of the parallelogram. A driving component, utilizing the self-locking property of a threaded transmission, drives the quadrilateral component to move, ensuring stability during pipe flaring. However, this device uses multiple support blocks to expand the pipe opening. When the support blocks move away from each other, gaps will appear between them, making it difficult to form a smooth inner wall surface for the expanded pipe opening.

[0004] Chinese Patent Publication CN218615418U discloses a plastic pipe flaring device that can simultaneously flare multiple plastic pipes, improving operational efficiency. During flaring, the pipe is simultaneously cooled and hardened, facilitating demolding and preventing further deformation of the flared end. Furthermore, cooling prevents water stains from adhering to the plastic pipe surface, facilitating subsequent pipe processing. However, this device requires different support platforms, clamping plates, and flaring molds when flaring pipes of different diameters, resulting in limited applicability.

[0005] Therefore, a highly applicable polyethylene pipe flaring device is proposed. Utility Model Content

[0006] This utility model proposes a highly applicable polyethylene pipe flaring device. After flaring the polyethylene pipe, it can ensure the smoothness of the inner wall of the pipe opening and is applicable to polyethylene pipes of different diameters. It can also clamp and fix polyethylene pipes of different diameters, thus having better applicability.

[0007] This utility model is achieved through the following technical solution: a highly applicable polyethylene pipe flaring device, comprising a base plate, a vertical plate, and a flaring mechanism. The vertical plate is slidably mounted on the upper surface of the base plate, and the flaring mechanism is disposed on the vertical plate for flaring the polyethylene pipe. A hot air assembly for heating the polyethylene pipe opening is disposed on the vertical plate, and a clamping assembly corresponding to the position of the flaring mechanism is disposed on the base plate.

[0008] The flaring mechanism includes a rotating cylinder rotatably mounted on a vertical plate. A sleeve is rotatably sleeved on the outer surface of the rotating cylinder near the clamping assembly. Multiple linkage bars arranged in a circular array about the center of the rotating cylinder are rotatably connected to the end face of the rotating cylinder near the clamping assembly. The ends of the multiple linkage bars that are far apart from each other are all hinged to the end face of the sleeve. The ends of the multiple linkage bars that are close to each other are all rotatably connected to a rotating tube.

[0009] The sleeve has a material feeding groove A in the middle. A fixing block is slidably arranged inside the material feeding groove A. The fixing block is fixed to the outer surface of the rotating cylinder. A servo push rod is hinged to the bottom wall of the material feeding groove A. The telescopic end of the servo push rod is hinged to the fixing block.

[0010] Furthermore, the flaring mechanism also includes a motor fixedly mounted on the vertical plate, with a gear fixedly attached to the output end of the motor, and an external gear ring fixedly fitted onto the outer surface of the end of the rotating drum away from the rotating tube, the external gear ring meshing with the gear.

[0011] Furthermore, a conductive slip ring is fixedly fitted onto the outer surface of the sleeve, and the servo push rod is electrically connected to the conductive slip ring. A conductive plate, which is slidably electrically connected to the conductive slip ring, is fixed on the vertical plate and is electrically connected to the controller. This design allows the servo push rod to be electrically connected to the controller via the conductive slip ring and conductive plate. As the servo push rod rotates with the rotating drum and sleeve, the controller can control the working state of the servo push rod.

[0012] The clamping assembly includes an outer cylinder, an inner cylinder that is rotatably sleeved inside the outer cylinder, and a set of clamping plates arranged in a circular array about the center of the inner cylinder are rotatably connected to the left and right end faces of the inner cylinder. The ends of multiple clamping plates in each set that are far apart from each other are hinged to the end face of the outer cylinder.

[0013] The outer cylinder has a material chute B in the middle, and a fixing plate is slidably arranged inside the material chute B. The top end of the fixing plate is fixed to the outer surface of the inner cylinder, and the bottom end of the fixing plate is fixed to the upper surface of the bottom plate.

[0014] Furthermore, a connecting piece is fixed to the outer surface of the outer cylinder, and the connecting piece is located at the edge of the material chute B. A tension spring is fixed between the connecting piece and the fixing plate, and a handle is fixed to the outer surface of the outer cylinder.

[0015] The aforementioned hot air assembly includes a hot air box fixed to the top of the vertical plate. An air supply pipe is fixed to the output end of the hot air box. The end of the air supply pipe away from the hot air box passes through the rotating cylinder and extends between multiple rotating pipes. Multiple air outlets are opened on the outer surface of the end of the air supply pipe away from the hot air box, and the positions of the air outlets correspond to the positions of the multiple rotating pipes.

[0016] Furthermore, two parallel slide rails and an electric actuator are fixed to the upper surface of the base plate, and the bottom of the vertical plate is slidably mounted on the upper surface of the base plate via the two slide rails, with the telescopic end of the electric actuator fixed to the bottom of the vertical plate.

[0017] This utility model provides a highly applicable polyethylene pipe flaring device, which has the following beneficial effects:

[0018] 1. This highly adaptable polyethylene pipe flaring device, through its flaring mechanism and hot air assembly, activates a servo push rod and motor in the flaring mechanism during pipe flaring. The motor drives the rotating drum and sleeve to rotate simultaneously, along with multiple rotating tubes. These tubes rotate and spin against the inner wall of the polyethylene pipe opening. Simultaneously, the servo push rod extends, causing the tubes to slowly expand outwards. At the same time, the hot air box in the hot air assembly blows hot air into the air supply pipe. The hot air exits through the air outlet, heating the inner wall of the polyethylene pipe opening to achieve the flaring operation. After flaring, the device ensures a smooth inner wall and is suitable for polyethylene pipes of different diameters.

[0019] 2. This highly versatile polyethylene pipe flaring device, through its clamping components, allows the outer cylinder to rotate on the outer surface of the inner cylinder. This reduces the included angle between multiple clamping plates in the two sets of clamps until one end of the clamping plates presses against the outer surface of the polyethylene pipe, thus clamping and fixing the pipe. It can clamp and fix polyethylene pipes of different diameters, offering better applicability. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the three-dimensional structure of the present invention. Figure 1 ;

[0021] Figure 2 This is a three-dimensional structural diagram of the flaring mechanism and hot air assembly in this utility model;

[0022] Figure 3 This is a schematic diagram showing the disassembled structure of the flaring mechanism and the hot air assembly in this utility model;

[0023] Figure 4 This is a schematic diagram of the disassembled structure of the flaring mechanism in this utility model;

[0024] Figure 5This is a schematic diagram of the three-dimensional structure of the present invention. Figure 2 ;

[0025] Figure 6 This is a schematic diagram of the three-dimensional structure of the present invention. Figure 3 ;

[0026] Figure 7 This is a schematic diagram of the three-dimensional structure of the clamping component in this utility model. Figure 1 ;

[0027] Figure 8 This is a schematic diagram of the three-dimensional structure of the clamping component in this utility model. Figure 2 .

[0028] Explanation of reference numerals in the attached figures

[0029] 1. Base plate; 101. Slide rail; 102. Electric actuator;

[0030] 2. Vertical board;

[0031] 3. Flaring mechanism; 301. Rotary drum; 302. Sleeve; 303. Linkage bar; 304. Rotary tube; 305. Fixing block; 306. Material feeding chute A; 307. Servo push rod; 308. External gear ring; 309. Motor; 310. Gear; 311. Conductive slip ring; 312. Conductive sheet;

[0032] 4. Hot air assembly; 401. Hot air box; 402. Air supply duct; 403. Air outlet;

[0033] 5. Clamping assembly; 501. Outer cylinder; 502. Inner cylinder; 503. Clamping plate; 504. Material unloading chute B; 505. Fixing plate; 506. Connecting piece; 507. Tension spring; 508. Handle. Detailed Implementation

[0034] 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 a part of the embodiments of this application, and not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of this application.

[0035] Please see Figures 1 to 8This utility model provides a highly applicable polyethylene pipe flaring device, including a base plate 1, a vertical plate 2, and a flaring mechanism 3. The vertical plate 2 is slidably mounted on the upper surface of the base plate 1. The flaring mechanism 3 is disposed on the vertical plate 2 and is used to flare the polyethylene pipe. A hot air assembly 4 is disposed on the vertical plate 2 to heat the opening of the polyethylene pipe. A clamping assembly 5 is disposed on the base plate 1 corresponding to the position of the flaring mechanism 3. The clamping assembly 5 and the flaring mechanism 3 are located on the same axis and are used to clamp and fix the polyethylene pipe.

[0036] Please refer to this carefully. Figure 2 , Figure 3 and Figure 4 The flaring mechanism 3 includes a rotating cylinder 301 rotatably mounted on a vertical plate 2. A sleeve 302 is rotatably fitted onto the outer surface of the rotating cylinder 301 near the clamping assembly 5. Multiple linkage bars 303 arranged in a circular array about the center of the rotating cylinder 301 are rotatably connected to the end face of the rotating cylinder 301 near the clamping assembly 5. The ends of the linkage bars 303 that are far apart from each other are hinged to the end face of the sleeve 302, and the ends of the linkage bars 303 that are close together are rotatably connected to rotating tubes 304. When flaring the polyethylene pipe, the multiple rotating tubes 304 are inserted into the port of the polyethylene pipe. When the sleeve 302 rotates on the outer surface of the rotating cylinder 301, the included angle between the multiple linkage bars 303 can be changed, thereby synchronously adjusting the spacing between the multiple rotating tubes 304 to expand the inner wall of the polyethylene pipe port.

[0037] A material discharge groove A306 is provided in the middle of the sleeve 302. A fixing block 305 is slidably disposed inside the material discharge groove A306. The fixing block 305 is fixed to the outer surface of the rotating drum 301. A servo push rod 307 is hinged to the bottom wall of the material discharge groove A306. The telescopic end of the servo push rod 307 is hinged to the fixing block 305. When the servo push rod 307 extends or retracts, it can cause the sleeve 302 to rotate on the outer surface of the rotating drum 301 to adjust the included angle between multiple linkage bars 303, and simultaneously adjust the spacing between multiple rotating tubes 304, so that the multiple rotating tubes 304 converge or expand.

[0038] Furthermore, the flaring mechanism 3 also includes a motor 309 fixedly mounted on the vertical plate 2. A gear 310 is fixedly attached to the output end of the motor 309. An external gear ring 308 is fixedly sleeved on the outer surface of the end of the rotating drum 301 away from the rotating tube 304, and the external gear ring 308 meshes with the gear 310. When the motor 309 rotates, it drives the rotating drum 301 and the sleeve 302 to rotate together, and simultaneously, multiple rotating tubes 304 also rotate together. When flaring the polyethylene pipe, the multiple rotating tubes 304 rotate and spin against the inner wall of the polyethylene pipe opening, while simultaneously causing the servo push rod 307 to extend, enabling the multiple rotating tubes 304 to slowly expand outwards, thus realizing the flaring operation of the polyethylene pipe opening, and applicable to polyethylene pipes of different diameters.

[0039] Please refer to this carefully. Figure 2 and Figure 4 Furthermore, a conductive slip ring 311 is fixedly fitted onto the outer surface of the sleeve 302. The servo push rod 307 is electrically connected to the conductive slip ring 311. A conductive plate 312, which is slidably electrically connected to the conductive slip ring 311, is fixed on the vertical plate 2. The conductive plate 312 is electrically connected to the controller. This design allows the servo push rod 307 to be electrically connected to the controller via the conductive slip ring 311 and the conductive plate 312. As the servo push rod 307 rotates with the rotating drum 301 and the sleeve 302, the controller can control the working state of the servo push rod 307. The conductive slip ring 311 and the conductive plate 312 are implemented according to existing technology.

[0040] For details, please refer to the following: Figures 5-8 The clamping assembly 5 includes an outer cylinder 501, with an inner cylinder 502 rotatably sleeved inside the outer cylinder 501. A set of clamping plates 503 arranged in a circular array about the center of the inner cylinder 502 are rotatably connected to both the left and right end faces of the inner cylinder 502. The ends of multiple clamping plates 503 in each set, away from each other, are hinged to the end face of the outer cylinder 501. A material-discharging groove B504 is provided in the middle of the outer cylinder 501. A fixing plate 505 is slidably disposed inside the material-discharging groove B504. The top end of the fixing plate 505 is fixed to the outer surface of the inner cylinder 502, and the bottom end of the fixing plate 505 is fixed to the upper surface of the base plate 1. When the outer cylinder 501 rotates on the outer surface of the inner cylinder 502, the included angle between multiple clamping plates 503 in the two sets of clamping plates 503 can be changed, causing the ends of the multiple clamping plates 503 that are close to each other to move closer or further apart, thereby clamping or releasing the polyethylene pipe.

[0041] Please refer to this carefully. Figure 5 and Figure 6 Furthermore, a connecting piece 506 is fixed on the outer surface of the outer cylinder 501, and the connecting piece 506 is located at the edge of the material chute B504. A tension spring 507 is fixed between the connecting piece 506 and the fixing plate 505. The tension spring 507 can make the ends of the multiple clamping plates 503 that are close to each other move away from each other in a natural state. A handle 508 is fixed on the outer surface of the outer cylinder 501.

[0042] In clamping assembly 5, the polyethylene pipe is inserted into the inner cylinder 502, and the handle 508 is pressed down, causing the outer cylinder 501 to rotate on the outer surface of the inner cylinder 502. This reduces the included angle between the clamping plates 503 in the two sets of clamping plates 503 until one end of the clamping plates 503 presses against the outer surface of the polyethylene pipe, thus clamping and fixing the polyethylene pipe. This method can clamp and fix polyethylene pipes of different diameters, offering better applicability.

[0043] Please refer to this carefully. Figure 2 and Figure 3The aforementioned hot air assembly 4 includes a hot air box 401 fixed to the top of the vertical plate 2. An air supply pipe 402 is fixed to the output end of the hot air box 401. The end of the air supply pipe 402 away from the hot air box 401 passes through the rotating cylinder 301 and extends between multiple rotating pipes 304. Multiple air outlets 403 are provided on the outer surface of the end of the air supply pipe 402 away from the hot air box 401, and the positions of the air outlets 403 correspond to those of the multiple rotating pipes 304. In the hot air assembly 4, hot air is blown into the air supply pipe 402 through the hot air box 401, and the hot air is blown out through the air outlets 403, which heats the inner wall of the polyethylene pipe opening. Simultaneously, in conjunction with the flaring mechanism 3, the flaring operation of the polyethylene pipe opening is achieved.

[0044] Please refer to this carefully. Figure 1 and Figure 6 Furthermore, two parallel slide rails 101 and an electric actuator 102 are fixed to the upper surface of the base plate 1. The bottom of the vertical plate 2 is slidably mounted on the upper surface of the base plate 1 via the two slide rails 101, and the telescopic end of the electric actuator 102 is fixed to the bottom of the vertical plate 2. When the electric actuator 102 extends or retracts, it can drive the vertical plate 2, the flaring mechanism 3, and the hot air assembly 4 to move left and right.

[0045] The aforementioned electric actuator 102 and motor 309 are both electrically connected to the controller. In accordance with the spirit and purpose of this application, and in conjunction with existing electrical and programming technologies, the controller controls the corresponding actions.

[0046] When the device is in use: first, the controller controls the electric push rod 102 and the servo push rod 307 to adjust the device to the reset state, that is, the vertical plate 2 is located in the middle section of the slide rail 101, and the multiple rotating tubes 304 in the flaring mechanism 3 are in a state of mutual convergence.

[0047] Then insert the polyethylene pipe into the inner cylinder 502 and position the polyethylene pipe opening outside the multiple rotating pipes 304. Then press down the handle 508, and the outer cylinder 501 rotates on the outer surface of the inner cylinder 502. That is, the included angle between the multiple clamps 503 in the two sets of clamps 503 becomes smaller until the ends of the multiple clamps 503 that are close to each other press against the outer surface of the polyethylene pipe to clamp and fix the polyethylene pipe.

[0048] Then, the controller simultaneously activates the servo push rod 307 and motor 309 in the flaring mechanism 3. The motor 309 drives the rotating drum 301 and sleeve 302 to rotate together. At the same time, multiple rotating tubes 304 also rotate together, causing them to rotate and spin against the inner wall of the polyethylene pipe opening. Simultaneously, the servo push rod 307 extends, allowing the multiple rotating tubes 304 to slowly expand outward. Simultaneously, the hot air box 401 in the hot air assembly 4 is activated, blowing hot air into the air supply pipe 402. The hot air is then blown out through the air outlet 403, heating the inner wall of the polyethylene pipe opening to achieve the flaring operation. After flaring the polyethylene pipe, the inner wall of the opening is ensured to be smooth, and it is suitable for polyethylene pipes of different diameters.

[0049] After the flaring operation is completed, the controller is used to turn off the heating circuit of the hot air box 401, so that the hot air box 401 blows room temperature air into the polyethylene pipe opening until the polyethylene pipe opening cools down. Then, the servo push rod 307 is controlled to shorten, so that multiple rotating tubes 304 slowly converge with each other. At the same time, the electric push rod 102 is controlled to shorten until the multiple rotating tubes 304 in the flaring mechanism 3 are moved out of the polyethylene pipe opening. Finally, the handle 508 is released to pull the polyethylene pipe out of the handle 508.

[0050] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A highly applicable polyethylene pipe flaring device, comprising a base plate (1), a vertical plate (2), and a flaring mechanism (3), characterized in that: The vertical plate (2) is slidably mounted on the upper surface of the base plate (1). The flaring mechanism (3) is set on the vertical plate (2) for flaring the polyethylene pipe. The vertical plate (2) is provided with a hot air assembly (4) for heating the polyethylene pipe opening. The base plate (1) is provided with a clamping assembly (5) corresponding to the position of the flaring mechanism (3). The flaring mechanism (3) includes a rotating cylinder (301) rotatably mounted on the vertical plate (2). A sleeve (302) is rotatably sleeved on the outer surface of the rotating cylinder (301) near the clamping assembly (5). Multiple linkage bars (303) arranged in a circular array about the center of the rotating cylinder (301) are rotatably connected to the end face of the rotating cylinder (301) near the clamping assembly (5). The ends of the multiple linkage bars (303) that are far apart from each other are all hinged to the end face of the sleeve (302). The ends of the multiple linkage bars (303) that are close to each other are all rotatably connected to a rotating tube (304). The sleeve (302) has a material feeding groove A (306) in the middle. A fixing block (305) is slidably arranged inside the material feeding groove A (306). The fixing block (305) is fixed to the outer surface of the rotating drum (301). A servo push rod (307) is hinged to the bottom wall of the material feeding groove A (306). The telescopic end of the servo push rod (307) is hinged to the fixing block (305). The clamping assembly (5) includes an outer cylinder (501), an inner cylinder (502) is rotatably sleeved inside the outer cylinder (501), and a set of clamping plates (503) arranged in a circular array about the center of the inner cylinder (502) are rotatably connected to the left and right end faces of the inner cylinder (502). The ends of multiple clamping plates (503) in each set of clamping plates (503) that are far apart from each other are hinged to the end face of the outer cylinder (501). The outer cylinder (501) has a material chute B (504) in the middle. A fixing plate (505) is slidably arranged inside the material chute B (504). The top end of the fixing plate (505) is fixed to the outer surface of the inner cylinder (502), and the bottom end of the fixing plate (505) is fixed to the upper surface of the bottom plate (1).

2. The polyethylene pipe flaring device with high applicability according to claim 1, characterized in that: The flaring mechanism (3) also includes a motor (309) fixedly installed on the vertical plate (2). The output end of the motor (309) is fixed with a gear (310). An external gear ring (308) is fixedly sleeved on the outer surface of the end of the rotating drum (301) away from the rotating tube (304). The external gear ring (308) meshes with the gear (310).

3. The polyethylene pipe flaring device with high applicability according to claim 1, characterized in that: A conductive slip ring (311) is fixedly sleeved on the outer surface of the sleeve (302). The servo push rod (307) is electrically connected to the conductive slip ring (311). A conductive sheet (312) is fixed on the vertical plate (2) and is slidably electrically connected to the conductive slip ring (311). The conductive sheet (312) is electrically connected to the controller.

4. The polyethylene pipe flaring device with high applicability according to claim 1, characterized in that: The hot air assembly (4) includes a hot air box (401) fixed at the top of the vertical plate (2). An air supply pipe (402) is fixed at the output end of the hot air box (401). The end of the air supply pipe (402) away from the hot air box (401) passes through the rotating cylinder (301) and extends between multiple rotating pipes (304). Multiple air outlets (403) are opened on the outer surface of the end of the air supply pipe (402) away from the hot air box (401), and the positions of the air outlets (403) correspond to the positions of the multiple rotating pipes (304).

5. The polyethylene pipe flaring device with high applicability according to claim 1, characterized in that: The upper surface of the base plate (1) is fixed with two parallel slide rails (101) and an electric push rod (102). The bottom of the vertical plate (2) is slidably mounted on the upper surface of the base plate (1) via the two slide rails (101). The telescopic end of the electric push rod (102) is fixed to the bottom of the vertical plate (2).

6. The polyethylene pipe flaring device with high applicability according to claim 1, characterized in that: A connecting piece (506) is fixed on the outer surface of the outer cylinder (501), and the connecting piece (506) is located at the edge of the material chute B (504). A tension spring (507) is fixed between the connecting piece (506) and the fixing plate (505). A handle (508) is fixed on the outer surface of the outer cylinder (501).

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