High-density polyethylene pipe fitting pipe material splicing device
By designing a high-density polyethylene pipe splicing device that uses a scraper to remove residue from the heating plate, an elastic scraper to absorb impurities, and an active roller to clamp the pipes, the problem of impurities adhering to the heating plate is solved, achieving efficient and stable pipe hot-melt splicing and cleaning operations.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- CHANGZHOU UNIV
- Filing Date
- 2026-05-09
- Publication Date
- 2026-06-05
AI Technical Summary
In existing high-density polyethylene pipe splicing devices, molten plastic residue and impurities easily adhere to the surface of the heating plate during long-term hot-melt processing, resulting in uneven heating, reduced thermal conductivity, affecting the hot-melt quality and increasing the difficulty of operation.
A high-density polyethylene pipe splicing device was designed. A scraper is used to remove molten residue from the surface of the heating plate. An elastic scraper is used in conjunction with a suction machine to adsorb impurities. The active roller and auxiliary roller are used to clamp the pipe to ensure the stability of the pipe position. The contact sleeve scrapes impurities from the outer wall of the pipe and collects waste materials in a unified manner.
It effectively removes residue from the surface of the heating plate, ensures the quality of heat fusion, prevents damage to the heating plate, improves operating efficiency, ensures the stability and cleanliness of pipe splicing, and reduces the risk of waste splashing.
Smart Images
Figure CN122143349A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of pipe fittings and pipe splicing technology, specifically to a high-density polyethylene pipe fittings and pipe splicing device. Background Technology
[0002] High-density polyethylene (HDPE) pipes and fittings are environmentally friendly plastic pipe products made from high-quality HDPE resin through extrusion and injection molding processes. They possess advantages such as corrosion resistance, low-temperature resistance, impact resistance, excellent flexibility, and light weight. Their smooth inner walls reduce resistance and prevent scaling and clogging, resulting in a low coefficient of friction and low energy consumption for water and gas transmission. The pipes and fittings offer strong and reliable connections using hot-melt and electrofusion methods, ensuring excellent sealing and preventing leaks. They also boast a long service life, are non-toxic and odorless, hygienic and environmentally friendly, and recyclable. They are widely used in municipal water supply and drainage, rural drinking water improvement, chemical fluid transportation, garden irrigation, gas transmission, and industrial wastewater treatment. Installation is convenient, maintenance costs are low, and their overall performance far surpasses that of traditional metal and cement pipes.
[0003] Chinese patent CN221697950U discloses a high-density polyethylene (HDPE) pipe fitting splicing device, including a base. Two sets of fixing blocks are fixedly connected to the upper surface of the base. Each set of fixing blocks has a sliding rod fixedly connected to one side of each block. Two clamping blocks are slidably connected to the outer surfaces of the two sliding rods. Each clamping block has a retaining ring above it. This HDPE pipe fitting splicing device uses a telescopic rod to provide power, causing the pipe fittings to fit inwards for butt welding or heat fusion. This avoids the problem of manually moving the heat fusion blocks before heat fusion splicing the pipe fittings, which increases the workload of operators and reduces work efficiency during splicing. While this technical solution can automate the hot-melt butt welding of pipes, reducing manual labor intensity and improving splicing efficiency, during long-term hot-melt processing, molten plastic residue and impurities are very easy to adhere to the surface of the heating plate. After these impurities cool and solidify, they adhere to the plate surface and are difficult to remove. This not only causes uneven heating of the heating plate and a decrease in thermal conductivity, but also affects the hot-melt quality of the pipe end face, easily leading to problems such as insufficient welding, bonding misalignment, and interface defects. Summary of the Invention
[0004] To solve the above-mentioned technical problems, the present invention provides the following technical solution: a high-density polyethylene pipe fitting splicing device, comprising: A workbench, on both sides of which a transmission component 1 is fixedly connected, and in the middle of which a transmission component 2 is fixedly connected, and in the middle of the top of which a hot-melt component is slidably connected; The outer cylinder has a cylindrical structure. Both sides of the bottom of the outer cylinder are fixedly connected to sliders that slide against the inner side of the worktable. The inner side of the sliders is fixedly connected to the output end of the transmission component. The inner cylinder has a cylindrical structure and is located inside the outer cylinder. The side of the inner cylinder is rotatably connected to the inner side of the outer cylinder. A positioning frame is evenly arranged in the inner cylinder, and the side of the positioning frame is fixedly connected to the inner side of the inner cylinder. The positioning frame is arranged in a cross shape in the inner cylinder. A positioning shaft is slidably connected to the side of the positioning frame, and a positioning block is fixedly connected to the other end of the positioning shaft. A rotating block is rotatably connected to the inner side of the positioning block. A first spring is sleeved on the positioning shaft. One end of the first spring is fixedly connected to the positioning frame, and the other end of the first spring is fixedly connected to the positioning block. The hot-melt component includes: The movable seat has its side slidably connected to the inside of the worktable, the output end of the transmission component two is fixedly connected to the inside of the movable seat, a heating mechanism is fixedly connected to the top of the movable seat, and a cylinder is fixedly connected to the side of the movable seat. The support is arranged in a ring shape. The bottom of the support is slidably connected to the top of the workbench, the inner side of the support is slidably connected to the side of the movable seat, the top of the support is fixedly connected to a cleaning mechanism, and the other side of the top of the support is fixedly connected to a trimming mechanism. A support shaft, one end of which is fixedly connected to a bracket, and the other end of which is fixedly connected to the output end of a cylinder. The side of the support shaft is slidably connected to the inner side of a movable seat. Furthermore, the cleaning mechanism includes two mounting brackets, which are fixedly connected to both sides of the support. A baffle is fixedly connected to the side of the mounting bracket, a collection box is fixedly connected to the inner side of the baffle, an air suction machine is fixedly connected to the inner side of the collection box, and a mesh plate is fixedly connected to the side of the collection box. Furthermore, a motor is fixedly connected to one side of the mounting bracket, and a rotating shaft is rotatably connected to the other side of the mounting bracket. The output end of the motor is fixedly connected to one end of the rotating shaft. Rotating frames are fixedly connected to both sides of the rotating shaft. The side of the rotating frame is rotatably connected to the inner side of the baffle. A connecting rod is slidably connected to the inner side of the rotating frame. A scraper is fixedly connected to the other end of the connecting rod. The side of the scraper is slidably connected to the inner side of the rotating frame. A second spring is sleeved on the connecting rod. One end of the second spring is fixedly connected to the inner side of the rotating frame, and the other end of the second spring is fixedly connected to the scraper. Furthermore, the trimming mechanism includes a connecting frame and two bases. The side of the connecting frame is fixedly connected to the support, and the two bases are fixedly connected to both sides of the support. A sliding frame is slidably connected to the top of the base, and a sliding shaft is fixedly connected to the bottom of the sliding frame. The other end of the sliding shaft is slidably connected to the inner side of the base. A third spring is sleeved on the sliding shaft. The top of the third spring is fixedly connected to the bottom of the sliding frame, and the bottom of the third spring is fixedly connected to the base. An auxiliary roller is rotatably connected to the side of the sliding frame. Furthermore, both sides of the connecting frame are rotatably connected to active rollers, a second motor is fixedly connected to the side of the connecting frame, the output end of the second motor is fixedly connected to an active roller, a slide rod is slidably connected to the inner side of the connecting frame, a contact component is fixedly connected to the other end of the slide rod, a fourth spring is sleeved on the slide rod, one end of the fourth spring is fixedly connected to the connecting frame, and the other end of the fourth spring is fixedly connected to the side of the contact sleeve. Furthermore, the contact assembly includes a contact sleeve, the side of which is fixedly connected to the end of the slide rod away from the connecting frame, blades are evenly arranged on the inner side of the contact sleeve, and the side of the blades is fixedly connected to the inner side of the contact sleeve, a cylinder is fixedly connected to the inner side of the contact sleeve, and a cover plate is threaded to the bottom of the cylinder.
[0005] This invention provides a high-density polyethylene pipe fitting splicing device. It has the following beneficial effects: 1. This high-density polyethylene pipe fitting splicing device has a scraper that can remove molten residue and plastic impurities adhering to the surface of the heating plate, preventing the material from carbonizing and forming scale at high temperature. Through the sliding of the connecting rod and the cooperation of the second spring, elastic adaptive fitting is achieved, which ensures the slag removal effect by fitting the plate surface and prevents the scraper from damaging the plate surface by hard scraping. At the same time, it can absorb the scraped debris in real time to prevent waste from splashing and scattering.
[0006] 2. This high-density polyethylene pipe splicing device uses a combination of active and auxiliary rollers to clamp the pipe in both directions, ensuring uniform clamping force, limiting pipe swaying and displacement, and guaranteeing the stability of the pipe position during the trimming process, thus providing support for edge cleaning.
[0007] 3. This high-density polyethylene pipe fitting splicing device features a contact sleeve that adaptively fits the outer wall of the pipe, allowing the blade to cut evenly and avoiding scratches on the pipe material. The arc-shaped guide on the inner wall of the contact sleeve allows the scraped material to automatically slide down and be guided.
[0008] 4. This high-density polyethylene pipe fitting splicing device scrapes off waste materials and collects them uniformly in a cylinder, preventing residue from splashing and scattering, and realizing slag scraping, diversion, and slag collection. Attached Figure Description
[0009] Figure 1This is a schematic diagram of the high-density polyethylene pipe fitting assembly structure of the present invention; Figure 2 This is a schematic diagram of the outer cylinder of the present invention; Figure 3 This is a schematic diagram of the structure of the hot-melt component of the present invention; Figure 4 This is a schematic diagram of the structure of the bracket of the present invention; Figure 5 This is a schematic diagram of the cleaning mechanism of the present invention; Figure 6 This is a schematic diagram of the structure of the baffle of the present invention; Figure 7 For the present invention Figure 6 Schematic diagram of the structure at point A; Figure 8 This is a schematic diagram of the trimming mechanism of the present invention; Figure 9 This is a schematic diagram of the contact component of the present invention.
[0010] In the diagram: 1. Workbench; 2. Transmission component one; 3. Transmission component two; 4. Hot melt component; 41. Moving seat; 42. Heating mechanism; 43. Support; 44. Dressing mechanism; 441. Connecting frame; 442. Base; 443. Sliding frame; 444. Sliding shaft; 445. Third spring; 446. Auxiliary roller; 447. Motor two; 448. Drive roller; 449. Contact assembly; 4491. Contact sleeve; 4492. Blade; 4493. Cylinder; 4494. Cover plate; 4 410. Slide rod; 4411. Fourth spring; 45. Cleaning mechanism; 451. Mounting bracket; 452. Baffle; 453. Collection box; 454. Motor 1; 455. Mesh plate; 456. Air suction machine; 457. Rotating shaft; 458. Rotating frame; 459. Scraper; 4510. Connecting rod; 4511. Second spring; 46. Cylinder; 47. Support shaft; 5. Outer cylinder; 6. Inner cylinder; 7. Positioning frame; 8. Positioning shaft; 9. Positioning block; 10. Rotating block; 11. First spring. Detailed Implementation
[0011] Please see Figures 1-2 This invention provides a high-density polyethylene pipe fitting splicing device, comprising: Workbench 1, with transmission components 2 fixedly connected to both sides of the workbench 1, transmission components 3 fixedly connected to the middle of the workbench 1, and a hot melt component 4 slidably connected to the middle of the top of the workbench 1. The inner cylinder 6 has a cylindrical structure and is located inside the outer cylinder 5. The side of the inner cylinder 6 is rotatably connected to the inner side of the outer cylinder 5. The positioning frame 7 is evenly arranged in the inner cylinder 6 and the side of the positioning frame 7 is fixedly connected to the inner side of the inner cylinder 6. The positioning frame 7 is arranged in a cross shape in the inner cylinder 6. The side of the positioning frame 7 is slidably connected to the positioning shaft 8. The other end of the positioning shaft 8 is fixedly connected to the positioning block 9. The inner side of the positioning block 9 is rotatably connected to the rotating block 10. The positioning shaft 8 is fitted with a first spring 11. When the pipe is placed inside the inner cylinder 6, the positioning block 9, which is cross-shaped on the positioning frame 7 inside the inner cylinder 6, provides elastic support through the positioning shaft 8 and the first spring 11 fitted on the positioning shaft 8. This drives the rotating block 10, which is rotatably installed on the side, to fit against the outer wall of the supporting pipe, thereby centering and limiting the pipe inside the inner cylinder 6 and ensuring the coaxiality of the pipe. The outer cylinder 5 has a cylindrical structure. Both sides of the bottom of the outer cylinder 5 are fixedly connected to sliders that slide on the inside of the workbench 1. The inside of the sliders is fixedly connected to the output end of the transmission component 2. After the pipe is adjusted and positioned in the inner cylinder 6, the transmission component 2 on both sides of the workbench 1 is activated. The output end of the transmission component 2 drives the sliders on both sides of the bottom of the outer cylinder 5 to slide relative to each other on the surface of the workbench 1, so that the two sections of pipe move closer to the hot melt component 4 in the middle. The end faces of the two pipes are heated and melted by the hot-melt component 4. After the hot-melt process is completed, the hot-melt component 4 is driven by the transmission component 2 3 to detach from the end face of the pipe. Example 1, please refer to Figures 3-4 The invention also includes a hot melt component 4, a heating mechanism 42 fixedly connected to the top of the movable seat 41, the pipes respectively adhering to the heating plates on both sides of the heating mechanism 42, the heating mechanism 42 being activated to heat the pipe end face tightly against the heating plate, so that the pipe end face is fully heated to form a molten adhesive layer of uniform thickness. The side of the movable seat 41 is slidably connected to the inside of the worktable 1, and the output end of the transmission component 2 3 is fixedly connected to the inside of the movable seat 41. After heating is completed, the movable seat 41 is driven to slide inside the worktable 1 by the transmission component 2 3, and the entire heating mechanism 42 is quickly moved out. Through the transmission components 2 on both sides of the workbench 1, the slider drives the two sections of pipe to move towards each other at a uniform speed, so that the molten end faces at both ends are tightly squeezed and fused, thereby forming a uniform annular hot melt flange at the splicing position. A cylinder 46 is fixedly connected to the side of the movable base 41. The bracket 43 is arranged in a ring shape. The bottom of the bracket 43 is slidably connected to the top of the worktable 1, and the inner side of the bracket 43 is slidably connected to the side of the movable base 41. A cleaning mechanism 45 is fixedly connected to the top of the bracket 43, and a trimming mechanism 44 is fixedly connected to the other side of the top of the bracket 43. One end of the support shaft 47 is fixedly connected to the bracket 43, and the other end of the support shaft 47 is fixedly connected to the output end of the cylinder 46. The side of the support shaft 47 is connected to the inner side of the movable base 41. After the sliding connection and separation of the heating mechanism 42 from the pipe, the cylinder 46 is activated. The output end of the cylinder 46 drives the support shaft 47 to move along the inside of the bracket 43. At the same time, the support shaft 47 slides in the moving seat 41, so that the cleaning mechanism 45 is in contact with the surface of the heating plate to clean the residual slag on the heating plate. After the spliced pipe cools down naturally, the cylinder 46 moves in the opposite direction, driving the support shaft 47 and the bracket 43 to move in the opposite direction, and synchronously driving the trimming mechanism 44 to trim and clean the flanges, burrs and residual slag at the splicing interface of the pipe. Please see Figures 5-7 It also includes a cleaning mechanism 45. A motor 454 is fixedly connected to one side of the mounting bracket 451, and a rotating shaft 457 is rotatably connected to the other side of the mounting bracket 451. The output end of the motor 454 is fixedly connected to one end of the rotating shaft 457. Rotating frames 458 are fixedly connected to both sides of the rotating shaft 457. The side of the rotating frame 458 is rotatably connected to the inner side of the baffle 452. The output end of the cylinder 46 drives the support shaft 47 to move, so that the support shaft 47 drives the bracket 43 to slide on the moving seat 41. Then the motor 454 is started, and the motor 454 drives the rotating shaft 457 to rotate inside the baffle 452. The rotating shaft 457 drives the rotating frame 458 to rotate synchronously. A connecting rod 4510 is slidably connected to the inner side of the rotating frame 458. A scraper 459 is fixedly connected to the other end of the connecting rod 4510. The side of the scraper 459 is slidably connected to the inner side of the rotating frame 458. The rotating frame 458 drives the scraper 459 to rotate through the connecting rod 4510, so that the scraper 459 fits against the heating plates on both sides of the heating mechanism 42 to scrape and clean the residual impurities and slag attached to the plate surface. A second spring 4511 is fitted on the connecting rod 4510. One end of the second spring 4511 is fixedly connected to the inner side of the rotating frame 458, and the other end of the second spring 4511 is fixedly connected to the scraper 459. When the scraper 459 is in contact with the heating plate, it will cause the connecting rod 4510 to slide inside the rotating frame 458 when it encounters contact resistance, thus squeezing the second spring 4511 fitted on the outside of the connecting rod 4510 to form an elastic buffer. Relying on the elastic compensation of the spring, the scraper 459 is made to fit the surface of the heating plate, while avoiding damage to the heating plate caused by the scraper 459 scraping hard. Two mounting brackets 451 are fixedly connected to both sides of the bracket 43. A baffle 452 is fixedly connected to the side of the mounting bracket 451. A collection box 453 is fixedly connected to the inside of the baffle 452. An air suction machine 456 is fixedly connected to the inside of the collection box 453. During the process of the scraper 459 cleaning the heating plate, the air suction machine 456 inside the collection box 453 is turned on, and the scraped waste and impurities are promptly adsorbed by the negative pressure suction. A mesh plate 455 is fixedly connected to the side of the collection box 453. Impurities pass through the mesh plate 455 and enter the collection box 453 for centralized storage, thus avoiding the phenomenon of waste splashing, scattering and accumulating everywhere during the slag removal process. Please see Figure 8 It also includes a trimming mechanism 44. After the pipes on both sides are cooled, the output end of the cylinder 46 drives the support shaft 47 to move, which drives the bracket 43 to move in the opposite direction on the moving seat 41. The bracket 43 drives the base 442 and the sliding frame 443 to make the auxiliary roller 446 contact the outer wall of the pipe. Two bases 442 are fixedly connected to both sides of the support 43. A sliding frame 443 is slidably connected to the top of the base 442. An auxiliary roller 446 is rotatably connected to the side of the sliding frame 443. A sliding shaft 444 is fixedly connected to the bottom of the sliding frame 443. The other end of the sliding shaft 444 is slidably connected to the inner side of the base 442. A third spring 445 is sleeved on the sliding shaft 444. As the support 43 continues to advance, the sliding frame 443 drives the auxiliary roller 446 to continuously squeeze the tube, so that the sliding frame 443 slides down on the base 442 along the sliding shaft 444, thereby making the auxiliary roller 446 contact the tube and rotate to abut against the other side of the tube. Both sides of the connecting frame 441 are rotatably connected to the active roller 448. The side of the connecting frame 441 is fixedly connected to the second motor 447. The output end of the second motor 447 is fixedly connected to an active roller 448. At the same time, the connecting frame 441 drives the active roller 448 to fit against the upper surface of the tube. The active roller 448 and the auxiliary roller 446 clamp and limit the tube from both sides. The second motor 447 on the connecting frame 441 is turned on. The second motor 447 drives the active roller 448 to rotate. The tube rotates circumferentially by friction transmission, so that the tube and the inner cylinder 6 rotate synchronously inside the outer cylinder 5. A slide rod 4410 is slidably connected to the inner side of the connecting frame 441. A contact component 449 is fixedly connected to the other end of the slide rod 4410. A fourth spring 4411 is sleeved on the slide rod 4410. During the rotation of the pipe, the contact component 449 is always in close contact with the outer wall of the pipe through the elastic support provided by the slide rod 4410 and the fourth spring 4411 sleeved on the slide rod 4410. It continuously scrapes away the annular hot melt flange, burrs and residual slag at the splicing position and performs interface repair work. Please see Figure 9It also includes a contact assembly 449. The side of the contact sleeve 4491 is fixedly connected to the end of the slide rod 4410 away from the connecting frame 441. One end of the fourth spring 4411 is fixedly connected to the connecting frame 441, and the other end of the fourth spring 4411 is fixedly connected to the side of the contact sleeve 4491. Blades 4492 are evenly arranged on the inner side of the contact sleeve 4491, and the side of the blades 4492 is fixedly connected to the inner side of the contact sleeve 4491. The contact sleeve 4491 forms an elastic support with the slide rod 4410 and the fourth spring 4411 fitted on the slide rod 4410, so that the contact sleeve 4491 fits against the side wall of the pipe. When the active roller 448 drives the pipe to rotate, the blades 4492 on the inner side of the contact sleeve 4491 continuously scrape the annular flange at the joint of the pipe, cutting away excess slag and flash. A cylinder 4493 is fixedly connected to the inner side of the contact sleeve 4491. A cover plate 4494 is threadedly connected to the bottom of the cylinder 4493. At the same time, through the arc-shaped guide inside the contact sleeve 4491, the scraped impurities can slide along the arc-shaped surface inside the contact sleeve 4491 and finally fall into the lower cylinder 4493 for unified collection. When performing maintenance and cleaning, simply rotate the threaded cover plate 4494 at the bottom of the cylinder 4493 to disassemble and separate the cover plate 4494, which facilitates quick cleaning of the waste accumulated inside the cylinder and prevents impurities from accumulating inside the contact sleeve 4491. Specific workflow: Use a pipe cutter to cut the pipe vertically, ensuring a flat cut without bevels. Remove burrs and flash from the pipe ends. Wipe the pipe end face and outer wall to keep the surface clean and free of water, oil, and dust. Install and fix the two pipe sections in the inner cylinders 6 on both sides of the top of the workbench 1, and make minor adjustments to the position of the pipes. When the pipe is placed inside the inner cylinder 6, the positioning block 9, which is cross-shaped on the positioning frame 7 inside the inner cylinder 6, provides elastic support through the positioning shaft 8 and the first spring 11 mounted on the positioning shaft 8, which drives the rotating block 10, which is rotated on the side, to fit against the outer wall of the supporting pipe, thereby centering and limiting the pipe inside the inner cylinder 6 to ensure the coaxiality of the pipe. After the pipe is adjusted and positioned in the inner cylinder 6, the transmission components 2 on both sides of the workbench 1 are activated. The output end of the transmission components 2 drives the sliders on both sides of the bottom of the outer cylinder 5 to slide relative to each other on the surface of the workbench 1, so that the two sections of pipe move closer to the hot melt component 4 in the middle. The end faces of the two pipes are heated and melted by the hot-melt component 4. After the hot-melt process is completed, the hot-melt component 4 is driven by the transmission component 2 3 to detach from the end face of the pipe. Reactivate the two-sided transmission components 2 to drive the sliders on both sides to slide towards each other, pushing the two sections of pipe to quickly fit and squeeze together, and perform the hot melt splicing operation of the pipe. The pipes are respectively attached to the heating plates on both sides of the heating mechanism 42. The heating mechanism 42 is activated so that the end face of the pipe is in close contact with the heating plate and heated, so that the end face of the pipe is fully heated and a molten adhesive layer of uniform thickness is formed. After heating is completed, the moving seat 41 is driven by the transmission component 2 3 to slide inside the worktable 1 and quickly move out of the overall heating mechanism 42; Through the transmission components 2 on both sides of the workbench 1, the slider drives the two sections of pipe to move towards each other at a uniform speed, so that the molten end faces at both ends are tightly squeezed and fused, thereby forming a uniform annular hot melt flange at the splicing position. After the heating mechanism 42 separates from the pipe, the cylinder 46 is activated. The output end of the cylinder 46 drives the support shaft 47 to move along the inside of the bracket 43. At the same time, the support shaft 47 slides in the moving seat 41, so that the cleaning mechanism 45 is in contact with the surface of the heating plate to clean the residual slag on the heating plate. After the spliced pipe cools down naturally, the cylinder 46 moves in the opposite direction, driving the support shaft 47 and the bracket 43 to move in the opposite direction, and synchronously driving the trimming mechanism 44 to trim and clean the flanges, burrs and residual slag at the splicing interface of the pipe. The output end of cylinder 46 drives the support shaft 47 to move, causing the support shaft 47 to drive the bracket 43 to slide on the moving seat 41. Then, motor 454 is started, and motor 454 drives the rotating shaft 457 to rotate inside the baffle 452. The rotating shaft 457 drives the rotating frame 458 to rotate synchronously. The rotating frame 458 drives the scraper 459 to rotate through the connecting rod 4510, so that the scraper 459 fits against the heating plates on both sides of the heating mechanism 42 to scrape off and clean the residual impurities and slag attached to the plate surface. When the scraper 459 is in contact with the heating plate, it will cause the connecting rod 4510 to slide in the rotating frame 458 when it encounters contact resistance. This will compress the second spring 4511 on the outside of the connecting rod 4510, forming an elastic buffer. Relying on the elastic compensation of the spring, the scraper 459 is in contact with the surface of the heating plate, while avoiding damage to the heating plate caused by the scraper 459 scraping hard. During the simultaneous cleaning of the heating plate by the scraper 459, the suction machine 456 inside the collection box 453 is turned on, and the scraped waste and impurities are promptly adsorbed by the negative pressure suction. Impurities pass through the mesh plate 455 and enter the collection box 453 for centralized storage, avoiding the phenomenon of waste splashing, scattering and accumulating during the slag removal process; After the pipes on both sides are cooled, the output end of the cylinder 46 drives the support shaft 47 to move, which in turn drives the bracket 43 to move in the opposite direction on the moving seat 41. The bracket 43 drives the base 442 and the sliding frame 443 to make the auxiliary roller 446 contact the outer wall of the pipe. As the support 43 continues to advance, the sliding frame 443 drives the auxiliary roller 446 to continuously squeeze the tube, causing the sliding frame 443 to slide downward on the base 442 along the sliding shaft 444, thereby causing the auxiliary roller 446 to contact and rotate with the tube and abut against the other side of the tube. At the same time, the connecting frame 441 drives the active roller 448 to fit against the upper surface of the pipe. The active roller 448 and the auxiliary roller 446 clamp and limit the pipe from both sides. The motor 447 on the connecting frame 441 is turned on. The motor 447 drives the active roller 448 to rotate. The pipe rotates circumferentially by friction transmission, so that the pipe and the inner cylinder 6 rotate synchronously inside the outer cylinder 5. During the rotation of the pipe, the contact component 449, through the elastic support provided by the slide rod 4410 and the fourth spring 4411 fitted on the slide rod 4410, always adheres to the outer wall of the pipe, continuously scraping away the annular hot melt flange, burrs and residual slag at the splicing position, and performing interface repair work. The contact sleeve 4491 forms an elastic support with the slide rod 4410 and the fourth spring 4411 fitted on the slide rod 4410, so that the contact sleeve 4491 fits against the side wall of the pipe. When the drive roller 448 drives the pipe to rotate, the blade 4492 on the inner side of the contact sleeve 4491 continuously scrapes the annular flange at the joint of the pipe, cutting away excess slag and flash. Meanwhile, through the arc-shaped guide inside the contact sleeve 4491, the scraped impurities can slide along the arc-shaped surface inside the contact sleeve 4491 and eventually fall into the lower cylinder 4493 for unified collection. When performing maintenance and cleaning, simply rotate the threaded cover plate 4494 at the bottom of the cylinder 4493 to disassemble and separate the cover plate 4494, which facilitates quick cleaning of the waste accumulated inside the cylinder and prevents impurities from accumulating inside the contact sleeve 4491.
[0012] The above are merely specific embodiments of the present invention, but the scope of protection of the present invention is not limited thereto. The scope of protection of the present invention should be determined by the scope of the claims.
Claims
1. A high-density polyethylene pipe fitting splicing device, characterized in that, include: A workbench, on both sides of which a transmission component 1 is fixedly connected, and in the middle of which a transmission component 2 is fixedly connected, and in the middle of the top of which a hot-melt component is slidably connected; The outer cylinder has a cylindrical structure. Both sides of the bottom of the outer cylinder are fixedly connected to sliders that slide against the inner side of the worktable. The inner side of the sliders is fixedly connected to the output end of the transmission component. The inner cylinder has a cylindrical structure and is located inside the outer cylinder. The side of the inner cylinder is rotatably connected to the inner side of the outer cylinder. A positioning frame is evenly arranged in the inner cylinder, and the side of the positioning frame is fixedly connected to the inner side of the inner cylinder. A positioning shaft is slidably connected to the side of the positioning frame, and a positioning block is fixedly connected to the other end of the positioning shaft. A rotating block is rotatably connected to the inner side of the positioning block, and a first spring is sleeved on the positioning shaft. The hot-melt component includes: The movable seat has its side slidably connected to the inside of the worktable, the output end of the transmission component two is fixedly connected to the inside of the movable seat, a heating mechanism is fixedly connected to the top of the movable seat, and a cylinder is fixedly connected to the side of the movable seat. The support is arranged in a ring shape. The bottom of the support is slidably connected to the top of the workbench, the inner side of the support is slidably connected to the side of the movable seat, the top of the support is fixedly connected to a cleaning mechanism, and the other side of the top of the support is fixedly connected to a trimming mechanism. A support shaft, one end of which is fixedly connected to a bracket, and the other end of which is fixedly connected to the output end of a cylinder. The side of the support shaft is slidably connected to the inner side of a movable seat.
2. The high-density polyethylene pipe fitting splicing device according to claim 1, characterized in that: The positioning frame is arranged in a cross shape in the inner cylinder. One end of the first spring is fixedly connected to the positioning frame, and the other end of the first spring is fixedly connected to the positioning block.
3. The high-density polyethylene pipe fitting splicing device according to claim 1, characterized in that: The cleaning mechanism includes two mounting brackets, which are fixedly connected to both sides of a support. A baffle is fixedly connected to the side of each mounting bracket, a collection box is fixedly connected to the inside of each baffle, an air suction machine is fixedly connected to the inside of each collection box, and a mesh plate is fixedly connected to the side of each collection box.
4. The high-density polyethylene pipe fitting splicing device according to claim 3, characterized in that, Also includes: A motor is fixedly connected to one side of the mounting bracket, and a rotating shaft is rotatably connected to the other side of the mounting bracket. The output end of the motor is fixedly connected to one end of the rotating shaft. Rotating frames are fixedly connected to both sides of the rotating shaft. A connecting rod is slidably connected to the inner side of the rotating frame. A scraper is fixedly connected to the other end of the connecting rod. A second spring is sleeved on the connecting rod.
5. A high-density polyethylene pipe fitting splicing device according to claim 4, characterized in that: The side of the scraper is slidably connected to the inside of the rotating frame, one end of the second spring is fixedly connected to the inside of the rotating frame, the other end of the second spring is fixedly connected to the scraper, and the side of the rotating frame is rotatably connected to the inside of the baffle.
6. The high-density polyethylene pipe fitting splicing device according to claim 1, characterized in that: The trimming mechanism includes a connecting frame and two bases. The side of the connecting frame is fixedly connected to the support, and the two bases are fixedly connected to the two sides of the support. A sliding frame is slidably connected to the top of the base, and a sliding shaft is fixedly connected to the bottom of the sliding frame. The other end of the sliding shaft is slidably connected to the inner side of the base. A third spring is sleeved on the sliding shaft. The top of the third spring is fixedly connected to the bottom of the sliding frame, and the bottom of the third spring is fixedly connected to the base. An auxiliary roller is rotatably connected to the side of the sliding frame.
7. A high-density polyethylene pipe fitting splicing device according to claim 6, characterized in that, Also includes: Both sides of the connecting frame are rotatably connected to active rollers. A second motor is fixedly connected to the side of the connecting frame. The output end of the second motor is fixedly connected to an active roller. A slide rod is slidably connected to the inner side of the connecting frame. A contact component is fixedly connected to the other end of the slide rod. A fourth spring is sleeved on the slide rod.
8. A high-density polyethylene pipe fitting splicing device according to claim 7, characterized in that: The contact assembly includes a contact sleeve, on which blades are evenly arranged, and the sides of the blades are fixedly connected to the inner side of the contact sleeve. A cylinder is fixedly connected to the inner side of the contact sleeve, and a cover plate is threaded to the bottom of the cylinder.
9. A high-density polyethylene pipe fitting splicing device according to claim 8, characterized in that: The side of the contact sleeve is fixedly connected to the end of the slide rod away from the connecting frame, one end of the fourth spring is fixedly connected to the connecting frame, and the other end of the fourth spring is fixedly connected to the side of the contact sleeve.