PE pipe welding equipment

Abstract

The utility model discloses a kind of PE pipeline fusion equipment, including rack, power mechanism, milling hot melt linkage mechanism and fixed mechanism.The power mechanism is driven by cylinder to slide piece with slide rail to advance pipeline;The milling hot melt linkage mechanism is driven rotary disc by rotating motor, so that integrated milling device and heating device can switchably mill and heat pipeline end face;The fixed mechanism adopts hinged clamping structure with quick locking switch to fix pipeline.The utility model realizes the automatic, fast, accurate switching of milling and heating function by pure mechanical structure, solves the problems of traditional equipment operation cumbersome, low efficiency, existence scald risk and poor centering accuracy, significantly improves the stability and reliability of welding quality.

Description

Technical Field

[0001] This utility model relates to the field of pipe connection equipment technology, and in particular to a PE pipe welding equipment. Background Technology

[0002] PE pipes are widely used in water supply and drainage, gas transmission and other fields due to their strong corrosion resistance, good flexibility and long service life. PE pipe connections typically use a hot-melt welding process, which requires milling the pipe ends flat first, and then using a hot-melt device to soften and bond the pipe ends.

[0003] Currently, milling and hot-melt processes in existing technologies mostly rely on different equipment for step-by-step operations. Chinese Patent CN222875332U discloses a pipe-connecting device for municipal construction. By setting a pipe-limiting mechanism and utilizing the cooperation between a sliding base and clamping components, it can automatically position and transport the PE pipe body and apply a certain pressure to the PE pipe body during the hot-melt process. This eliminates the need for manual operation by construction personnel, improving both the safety and quality of pipe-connecting operations.

[0004] However, existing PE pipe welding equipment still has significant drawbacks in practical applications: First, its milling device and heating device are usually two separate modules. After milling, the operator needs to manually remove the milling device and then manually install the high-temperature heating plate. This process is not only time-consuming and labor-intensive, but also greatly reduces work efficiency. Second, manual replacement of the heating plate involves many uncertainties, poor placement accuracy, and the operator needs to directly contact the high-temperature heating plate, posing a serious risk of burns. Utility Model Content

[0005] This invention provides a PE pipe welding device that solves the problem of manually replacing the heating plate. This invention has a simple structure, is easy to use, and is highly safe.

[0006] The technical solution adopted by this utility model to solve its technical problem is a PE pipe welding device, comprising: Frame, piping, power mechanism, milling and hot melt linkage mechanism, and fixing mechanism; The frame serves as the basic support platform for the entire equipment, providing an installation benchmark for all functional mechanisms on it and ensuring the rigidity and stability of the whole machine. The power mechanism includes a slide rail, a telescopic rod, a sliding plate, and a cylinder port. The cylinder port is connected to an external cylinder as a power source. A sliding plate is fixedly installed at one end of the telescopic rod. The bottom of the sliding plate slides in cooperation with the slide rail fixed on the frame. The upper part of the sliding plate is used to install and clamp the pipe to be welded.

[0007] The milling and hot-melt linkage mechanism is located in the middle of the machine frame, at the junction of the two pipes. The mechanism includes a rotary disk, a rotary motor, a heating device, and a milling device. The rotary disk is rotatably supported on the machine frame via a rotating shaft. The rotary motor transmits power to the rotating shaft via a belt drive, driving the rotary disk to rotate at a precise angle. The milling device integrates an independent milling motor for driving the milling cutter to rotate at high speed. The heating device and the milling device are arranged at an acute angle around the center of the rotary disk.

[0008] Multiple sets of fixing mechanisms are arranged above the machine frame. Some are located on one side of the milling and hot melt linkage mechanism and are fixedly connected to the power mechanism, while others are fixedly installed on the machine frame on the other side of the milling and hot melt linkage mechanism. Each fixing mechanism includes a lower fixing plate, an upper fixing plate, a protective layer, a hinge, and a locking switch. The lower fixing plate is fixedly installed on the machine frame, and the upper fixing plate is connected to one side of the lower fixing plate through a hinge. The inner walls of both the upper and lower fixing plates are provided with a protective layer made of wear-resistant, high-friction coefficient material. The locking switch adopts a bolt fixing structure and is installed at the connection between the lower and upper fixing plates.

[0009] This utility model provides a PE pipe welding device. Through the rotary disk linkage design of the milling and hot-melt linkage mechanism, the milling and hot-melt functions are integrated into the same workstation. By switching the precise angle of the rotary disk, the seamless connection of the "milling-hot-melt" process is achieved, avoiding the time loss and positional error of equipment switching in traditional step-by-step operation, significantly improving welding efficiency, reducing operation difficulty and equipment cost, and protecting the safety of operators. It has significant practical value and prospects for promotion and application. Attached Figure Description

[0010] Figure 1 This is a schematic diagram of the overall structure of the PE pipe welding equipment of this utility model; Figure 2 This is a schematic diagram of the power mechanism of the PE pipe welding equipment of this utility model; Figure 3 This is a schematic diagram of the milling and hot-melt linkage mechanism of the PE pipe welding equipment of this utility model; Figure 4 This is a schematic diagram of the fixing mechanism of the PE pipe welding equipment of this utility model.

[0011] Explanation of reference numerals in the attached figures: 1. Frame; 2. Pipeline; 3. Milling and hot melt linkage mechanism; 4. Power mechanism; 5. Fixing mechanism; 6. Slide rail; 7. Telescopic rod; 8. Sliding plate; 9. Cylinder port; 10. Heating device; 11. Milling device; 12. Milling motor; 13. Rotary disk; 14. Rotary motor; 15. Belt drive device; 16. Shaft; 17. Hinge; 18. Locking switch; 19. Protective layer; 20. Upper fixing plate; 21. Lower fixing plate. Detailed Implementation

[0012] The specific embodiments of this utility model are described in detail below, but it should be understood that the protection scope of this utility model is not limited to the specific embodiments.

[0013] like Figures 1 to 4 As shown, the present invention provides a PE pipe welding device, including a frame 1, a pipe 2, a power mechanism 4 mounted on the frame 1 for clamping and pushing the pipe 2, a milling and hot-melt linkage mechanism 3 for performing end face treatment of the pipe 2, and a fixing mechanism 5 for fixing the pipe 2. In one specific embodiment, the frame 1 serves as the basic support platform for the entire equipment, preferably welded from high-strength steel, providing an installation reference for all functional mechanisms on it and ensuring the rigidity and stability of the entire machine. The power mechanism 4 includes a slide rail 6, a telescopic rod 7, a sliding plate 8, and a cylinder port 9. The cylinder port 9 is connected to an external cylinder as a power source. One end of the telescopic rod 7 is fixedly mounted with the sliding plate 8. The bottom of the sliding plate 8 slides in cooperation with the slide rail 6 fixed on the frame 1. The upper part of the sliding plate 8 is designed for installing and clamping the pipe 2 to be welded. When the external air source supplies energy to the cylinder through the cylinder port 9, it drives the telescopic rod 7 to make precise linear movements, which in turn pushes the pipe 2 to move axially along the slide rail 6 through the sliding plate 8. The guiding effect of the slide rail 6 ensures the straightness and stability of the advancement process, providing stable and controllable power for the key "pressurization" stage in the welding process, effectively ensuring uniform pressure on the welding end face, which is the key to forming a high-quality weld ring. In a specific embodiment, in order to perform milling and hot-melt processing on the pipe 2 and finally complete the welding, this utility model is provided with a milling and hot-melt linkage mechanism 3, located in the middle of the frame 1, at the welding point of the two pipes 2. The milling and hot-melt linkage mechanism 3 includes a rotating disk 13, a rotary motor 14 driving the rotating disk 13, and a heating device 10 and a milling device 11 integrated on the rotating disk 13. The rotating disk 13 is rotatably supported on the frame 1 via a rotating shaft 16. The rotary motor 14 transmits power to the rotating shaft 16 via a belt drive device 15, driving the rotating disk 13 to rotate at a precise angle. The milling device 11 integrates an independent milling motor 12 for driving the milling cutter to rotate at high speed. The heating device 10 and the milling device 11 are arranged at an acute angle around the center of the rotating disk 13. In the initial working position, the milling device 11 faces the end face of pipe 2. The milling motor 12 is started to mill the end face of pipe 2, ensuring that the end face is flat and clean. After milling, the rotary motor 14 drives the rotary disk 13 to rotate through the belt drive device 15, which precisely rotates the heating device 10 to the working position to heat the milled end face of pipe 2. This design integrates two core functional modules into one, and realizes the function switching through a purely mechanical rotation linkage method, which greatly simplifies the operation process and improves work efficiency. Operators do not need to manually move and replace the high-temperature heating device 10, which fundamentally improves safety. At the same time, it avoids the positional error caused by human placement, and ensures the parallelism and centering of the heating plate and the end face of pipe 2, thereby significantly improving the stability and reliability of welding quality. In one specific embodiment, to securely fix the pipe 2 during milling and heating and prevent its movement, this utility model also provides multiple sets of fixing mechanisms 5. The fixing mechanisms 5 are located above the frame 1, with one part fixedly connected to the power mechanism 4 on one side of the milling and heating linkage mechanism 3, and the other part fixedly installed on the frame 1 on the other side of the milling and heating linkage mechanism 3. Each fixing mechanism 5 includes a lower fixing plate 21, an upper fixing plate 20, a protective layer 19, a hinge 17, and a locking switch 18. The lower fixing plate 21 is fixedly installed on the frame 1, and the upper fixing plate 20 is connected to one side of the lower fixing plate 21 via the hinge 17, allowing the upper fixing plate 20 to rotate around the hinge 17. Both the upper fixing plate 20 and the lower fixing plate 21 have a protective layer 19 made of wear-resistant, high-friction coefficient material on their inner sidewalls for opening and closing. This layer increases the clamping friction while preventing damage to the surface of the pipe 2. The locking switch 18 is bolted and installed at the connection between the lower fixing plate 21 and the upper fixing plate 20. When placing the pipe 2, opening the upper fixing plate 20 provides a large operating space and makes loading and unloading extremely convenient. After closing the upper fixing plate 20, turning the locking switch 18 generates a huge locking force, which firmly fixes the pipe 2 through the protective layer 19. This ensures that the pipe 2 will not loosen or shift during milling and heating, providing a solid foundation for subsequent high-quality welding. The working process of this utility model is as follows: The working process of a PE pipe welding device is divided into a fixing and clamping stage, a centering and milling stage, and a heating and welding stage. Fixing and clamping stage: The operator first places the pipe 2 on the lower fixing plate 21 of the fixing mechanism 5, closes the upper fixing plate 20 of the fixing mechanism 5, and rotates it around the hinge 17 until it closes with the lower fixing plate 21. The operator then forcefully pulls the locking switch 18 to make the upper fixing plate 20 and the lower fixing plate 21 close together. The huge friction generated by the inner protective layer 19 is used to firmly lock the pipe 2. Centering and milling stage: Start the power mechanism 4. The external air source supplies power through the cylinder port 9, pushing the telescopic rod 7 to extend. The telescopic rod 7 pushes the sliding plate 8 at its front end. The sliding plate 8 is guided by the slide rail 6 at the bottom, and smoothly and accurately pushes the pipe 2 on it to move towards the fixed end of the pipe 2. At this time, the rotating disk 13 of the milling hot melt linkage mechanism 3 is in the initial position, that is, the milling device 11 is facing the end face of the pipe 2. At the same time, the milling motor 12 and the power mechanism 4 of the milling device 11 are started. The power mechanism 4 pushes the pipe 2 with a low and stable pressure, so that its end face is in close contact with the high-speed rotating milling cutter. After the milling is completed, the power mechanism 4 drives the pipe 2 to move back smoothly and away from the milling device 11 for a distance, leaving space for the next operation. Heating and Welding Stage: After confirming the completion of milling, the rotary motor 14 is started. The rotary motor 14 transmits power to the rotating shaft 16 via the belt drive device 15, driving the rotating disk 13 to rotate at a precise angle, accurately rotating and positioning the heating device 10 to the working position of the milling device 11. The power mechanism 4 then operates again, pushing the pipe 2 forward so that the two freshly milled, clean end faces simultaneously contact the hot plate surfaces on both sides of the heating device 10. The power mechanism 4 applies a preset welding pressure, lower than the milling pressure. Under the combined action of this pressure and temperature, the ends of the pipe 2... The surface material begins to melt and forms a specified molten flange (rolled edge). After the heat absorption time is reached, the power mechanism 4 quickly drives the pipe 2 backward, separating the end face from the high-temperature heating device 10. The rotary motor 14 is immediately restarted to quickly rotate and move the heating device 10 away. Once the heating device 10 is completely moved away, the power mechanism 4 immediately pushes the pipe 2 forward again at the fastest speed possible, so that the two molten end faces are in close contact and butt joint under the preset welding pressure and the pressure is maintained. Under the action of pressure, a welded joint with a strength higher than that of the pipe 2 body is formed until the welding process is completely completed. The above-disclosed embodiments are merely specific examples of this utility model. However, the embodiments of this utility model are not limited thereto, and any variations that can be conceived by those skilled in the art should fall within the protection scope of this utility model.

Claims

1. A PE pipe welding device, comprising a frame (1), a power mechanism (4) for clamping and advancing a pipe (2), and a fixing mechanism (5) for fixing the pipe (2), characterized in that, Also includes: The milling and hot melt linkage mechanism (3) includes a rotary disk (13), a milling motor (12), a rotary motor (14) that drives the rotary disk (13) to rotate, a belt drive (15), a rotating shaft (16), and a milling device (11) and a heating device (10) that are both fixedly installed on the rotary disk (13). The rotary disk (13) is rotatably mounted on the frame (1) and has a first station for aligning the milling device (11) with the end face of the pipe (2) and a second station for aligning the heating device (10) with the end face of the pipe (2). The output end of the rotary motor (14) is connected to the rotating shaft (16) of the rotary disk (13) through the belt drive (15).

2. The PE pipe welding equipment according to claim 1, characterized in that: The milling device (11) and the heating device (10) are arranged at an acute angle about the rotation center of the rotary disk (13).

3. The PE pipe welding equipment according to claim 2, characterized in that: The rotary disk (13) is an indexing disk, and the rotary motor (14) drives it to rotate at a certain acute angle to achieve the switching between the first station and the second station.

4. The PE pipe welding equipment according to claim 1, characterized in that: The heating device (10) is a constant temperature controlled electric heating plate.

5. The PE pipe welding equipment according to claim 1, characterized in that: The power mechanism (4) includes a slide rail (6) mounted on the frame (1), a cylinder port (9), a sliding piece (8) that slides with the slide rail (6), and a telescopic rod (7) for driving the sliding piece (8) to move along the slide rail (6).

6. A PE pipe welding device according to claim 5, characterized in that: The telescopic rod (7) is driven by a cylinder, which is connected to the cylinder port (9).

7. A PE pipe welding device according to claim 1, characterized in that: The fixing mechanism (5) includes a lower fixing plate (21) fixed on the frame (1), an upper fixing plate (20) connected to the lower fixing plate (21) via a hinge (17), and a locking switch (18) for quickly locking or releasing the upper fixing plate (20) and the lower fixing plate (21).

8. A PE pipe welding device according to claim 7, characterized in that: The upper fixing plate (20) and the lower fixing plate (21) are provided with a protective layer (19) on their respective inner sides to increase friction and protect the pipe (2).

9. A PE pipe welding device according to claim 8, characterized in that: The protective layer (19) is a copper-based sintered material layer or an engineering rubber layer.

10. A PE pipe welding device according to claim 1, characterized in that: The device is provided with two sets of fixing mechanisms (5), one set is installed on the sliding part of the power mechanism (4) and moves with it, and the other set is fixedly installed on the frame (1).

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