A large-diameter hollow wall winding pipe production line welding device

Abstract

The application discloses a large-diameter hollow wall winding pipe production line welding device and relates to the technical field of plastic product production. The device comprises a power assembly and a control module. A forming roller is rotationally connected to the front side of the power assembly through a bearing. A plurality of forming rollers are arranged on the front side of the power assembly. The forming rollers are arranged in a ring shape. A transmission chain is arranged on the outer side of the forming rollers. A gear is fixedly connected to the outer wall of the side of the forming roller close to the power assembly. The device is provided with the power assembly, the forming roller, the transmission chain, the compression roller and the shaping roller. The hollow pipe can be stably rotated and continuously pushed forward during the winding process. The molten filler is synchronously output through the feeding pipe and reliably welded under the action of the compression roller. Meanwhile, the overflow filler is uniformly attached to the outer wall through the roller shaping of the shaping roller. The device guarantees the pipe body welding seam strength and surface flatness, has the characteristics of high practicability and improved forming quality of the hollow wall winding pipe.

Description

Technical Field

[0001] This invention relates to the field of plastic product manufacturing technology, specifically to a welding device for a large-diameter hollow-wall spiral pipe production line. Background Technology

[0002] Large-diameter hollow-wall spiral wound pipes, as a new type of lightweight and high-strength pipe material, are widely used in municipal drainage, sewage treatment, rainwater collection, and underground pipe network construction. These pipes are typically produced by thermoplastic extrusion molding and then fusion welding to weld the hollow-walled pipe sections layer by layer, ultimately forming a structurally stable hollow-walled pipe body. Current production processes often involve continuously extruding the hollow pipe using a forming die, followed by winding via roller support and a propulsion mechanism, and finally filling the gaps between the pipe sections with molten filler to achieve welding.

[0003] However, existing technologies still have the following shortcomings in practical applications:

[0004] Poor welding uniformity: Most existing devices rely on a single extrusion method to fill the gaps in the hollow tube with molten filler. When the tube diameter is large or the amount of filler is uneven, problems such as insufficient filling or excessive accumulation often occur, resulting in insufficient weld strength or uneven surface.

[0005] Insufficient adaptability: Hollow tubes of different diameters and wall thicknesses require adjustment of the pushing position and extrusion force during production. Most existing devices have fixed structures and limited adjustment range, resulting in complex changeover processes that are prone to errors.

[0006] Poor external wall shaping effect: If the molten filler overflowing during the welding process is not pressed and shaped in time, it is easy to form irregular protrusions on the pipe wall surface, affecting the appearance of the pipe and subsequent laying and use.

[0007] Insufficient reliability of high-strength welding: When welding large-diameter pipes, relying solely on static extrusion to push the filler, the molten filler diffuses slowly between the weld seams, which can easily lead to local voids or weak bonding, making it difficult to meet the requirements of high-strength applications.

[0008] The existing Chinese patent with publication number CN101327647A discloses a welding method for a production line of HDPE large-diameter hollow wall spiral pipe. This method makes the surface temperature of the square tube close to that of the high-temperature welding adhesive, thus partially eliminating thermal stress and reducing the probability of the hollow wall spiral pipe being damaged by environmental factors during use and storage. However, it cannot completely eliminate the above problems in the forming of large-diameter pipes.

[0009] In summary, existing welding devices for large-diameter hollow-wall spiral tubes suffer from problems such as poor welding uniformity, insufficient adaptability, poor outer wall shaping effect, and lack of intelligent detection. There is an urgent need for a new type of device that can take into account propulsion, detection, shaping, and vibration-assisted welding to improve the forming quality and production efficiency of hollow-wall spiral tubes. Summary of the Invention

[0010] The purpose of this invention is to provide a welding device for a large-diameter hollow-wall spiral pipe production line to solve the problems mentioned in the background art.

[0011] To solve the above-mentioned technical problems, the present invention provides the following technical solution: a welding device for a large-diameter hollow wall spiral pipe production line, comprising a power assembly and a control module. A forming roller is rotatably connected to the front side of the power assembly via a bearing, and a plurality of forming rollers are arranged in a ring on the front side of the power assembly. A transmission chain is arranged on the outer side of the plurality of forming rollers, and a gear is fixedly connected to the outer wall of the forming rollers near the power assembly. A transmission wheel is arranged on the left side of the front side of the power assembly, and the transmission wheel is connected to the gear on the power assembly via a transmission chain. A first motor is arranged on the upper side of the power assembly. The power assembly and the first motor are both electrically connected to the control module. A rotating rod is fixedly connected to the output end of the first motor, and a pressure roller is fixedly connected to the lower end of the rotating rod.

[0012] The pressure roller is used to advance the wound hollow tube, and a shaping mechanism is provided on the right side of the power assembly;

[0013] The shaping mechanism includes a fixing component and a shaping roller on the fixing component, the shaping roller being used to extrude and shape the outer side of the hollow wall winding tube;

[0014] A propulsion mechanism is provided on the upper right side of the forming roller at the front of the powertrain. The propulsion mechanism is used to support the hollow wall winding tube.

[0015] A first fixing plate is fixedly connected to the front side of the powertrain, and a feeding pipe is fixedly connected to the front side of the first fixing plate. An adjustment mechanism is provided on the outside of the rotating rod.

[0016] The adjustment mechanism includes a connecting assembly and a vibration mechanism on the connecting assembly. The vibration mechanism includes a transmission block, the front side of which contacts the rear side of the pressure roller, and the transmission block is used to provide vibration to the pressure roller.

[0017] According to the above technical solution, a second fixed plate is fixedly connected to the front side of the powertrain at the right side of the first fixed plate. Two infrared ranging modules are fixedly connected to the second fixed plate. The infrared ranging modules are electrically connected to the control module. The two infrared ranging modules are symmetrically arranged front and back, and the detection ends of the two infrared ranging modules face the lower right side of the feeding pipe.

[0018] According to the above technical solution, the fixing component includes a third fixing plate. The outer wall of the third fixing plate is fixedly connected to the right side of the outer wall of the powertrain. A circular mounting hole is provided on the left side of the third fixing plate. A rotating frame is rotatably connected to the inner wall of the circular mounting hole via a bearing. A second motor is fixedly connected to the right side of the third fixing plate. The second motor is electrically connected to the control module. The output end of the second motor is fixedly connected to the middle of the right side of the rotating frame. An electric drive wheel is rotatably connected to the left side of the rotating frame via a bearing. A shaping roller is fixedly connected to the outer wall of the electric drive wheel.

[0019] According to the above technical solution, the propulsion mechanism includes a fixed seat, the rear side of which is fixedly connected to the front side of the power assembly, and two limiting rods are fixedly connected to the front side of the fixed seat. A push plate is slidably connected to the outer wall of the limiting rod, and a threaded hole is provided on the push plate. A first threaded rod is threadedly connected to the inner wall of the threaded hole, and the rear end of the first threaded rod is rotatably connected to the front side of the fixed seat through a bearing.

[0020] According to the above technical solution, the rear side of the shaping roller and the rear side of the push plate are on the same plane, and the shaping roller can be deflected under the drive of the second motor.

[0021] According to the above technical solution, the connecting assembly includes a slide rod, the rear end of which is fixedly connected to the front side of the powertrain, a fixed sleeve is slidably connected to the outer side of the slide rod, the inner wall of the fixed sleeve is rotatably connected to the outer wall of the rotating rod through a bearing, a threaded hole is provided on the right side of the fixed sleeve, a second threaded rod is threadedly connected to the inner wall of the threaded hole on the fixed sleeve, the rear end of the second threaded rod is rotatably connected to the front side of the powertrain through a bearing, and the connecting assembly also includes a limiting seat, the lower side of which is fixedly connected to the upper surface of the powertrain, and the inner wall of which is slidably connected to the outer wall of the first motor.

[0022] According to the above technical solution, the vibration mechanism further includes a frame rod, the rear end of which is fixedly connected to the front side of the power assembly. A bracket is slidably connected to the outer wall of the frame rod. A vibration motor is fixedly connected to the middle of the bracket. An eccentric block is fixedly connected to the output end of the vibration motor. A vibration rod is fixedly connected to the front side of the bracket. A pressure detection module is fixedly connected to the front end of the lower end of the vibration rod. A transmission block is fixedly connected to the front side of the pressure detection module. A third threaded rod is threadedly connected to the right side of the bracket. The rear end of the third threaded rod is rotatably connected to the front side of the power assembly via a bearing. A third motor is also fixedly connected to the front side of the power assembly. The output end of the third motor is driven by the outer wall of the third threaded rod via a gear set.

[0023] According to the above technical solution, the pressure detection module is electrically connected to the control module, and the pressure detection module is used to detect the pressure between the transmission block and the vibration rod. The third motor is electrically connected to the control module, and the third motor is used to drive the third threaded rod to rotate.

[0024] Compared with the prior art, the beneficial effects achieved by the present invention are as follows: The present invention, by setting up a power assembly, forming roller, transmission chain, pressure roller and shaping roller, can realize the stable rotation and continuous advancement of hollow tube during the winding process. The molten filler is output synchronously through the feeding pipe and reliably welded under the action of the pressure roller. At the same time, it is rolled and shaped by the shaping roller, so that the overflow filler is evenly attached to the outer wall, ensuring the weld strength and surface flatness of the tube body.

[0025] By incorporating a second threaded rod, a limit seat, a push plate, a first threaded rod, and an infrared ranging module, the propulsion position and support gap can be adjusted according to hollow tubes of different diameters and wall thicknesses. The infrared ranging module detects the filler thickness and tube wall thickness, providing real-time feedback to control the position of the pressure roller and push plate, achieving high-precision adaptation for multiple tube specifications and avoiding production errors.

[0026] Equipped with a second motor, rotating frame, electric drive wheel, and shaping roller, the outer wall filler can be compacted and laterally dispersed at an adjustable angle, ensuring that the overflow material of the weld seam of pipes of different thicknesses is evenly spread, avoiding excessive rolling that could cause weld seam depressions, while also ensuring that the hollow wall pipe has a smooth and beautiful appearance and improving the forming quality.

[0027] By incorporating a vibration motor, eccentric block, vibration rod, pressure detection module, transmission block, and third motor, the system can promote rapid penetration and uniform filling of the weld seam through vibration transmission during the welding process. At the same time, the pressure detection module monitors the pressure in real time and provides feedback to adjust the vibration amplitude of the transmission block, which not only improves the filling efficiency but also prevents the hollow tube from deforming due to excessive static pressure, thus significantly enhancing welding reliability. Attached Figure Description

[0028] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used in conjunction with embodiments of the invention to explain the invention and do not constitute a limitation thereof. In the drawings:

[0029] Figure 1 This is a schematic diagram of the structure on the right side of the present invention;

[0030] Figure 2 This is a schematic diagram of the structure on the left side of the present invention;

[0031] Figure 3 This is a partial structural schematic diagram of the present invention;

[0032] Figure 4 This is a schematic diagram of the shaping mechanism structure of the present invention;

[0033] Figure 5 This is a schematic diagram of the adjustment mechanism structure of the present invention;

[0034] Figure 6 This is a schematic diagram of the vibration mechanism structure of the present invention;

[0035] Figure 7 This is a schematic diagram of the disassembled structure of the vibration mechanism of the present invention;

[0036] In the diagram: 1. Powertrain; 2. Forming roller; 3. Drive chain; 4. Drive wheel; 5. First motor; 6. Rotating rod; 7. Pressure roller; 8. Shaping mechanism; 9. Propulsion mechanism; 10. Feeding pipe; 11. First fixed plate; 12. Second fixed plate; 13. Infrared ranging module; 14. Adjustment mechanism; 801. Third fixed plate; 802. Second motor; 803. Rotating frame; 804. Electric drive wheel; 805. Shaping roller; 90 1. Fixed base; 902. Limiting rod; 903. Push plate; 904. First threaded rod; 401. Slide rod; 402. Fixed sleeve; 403. Second threaded rod; 404. Limiting base; 405. Vibration mechanism; 501. Frame rod; 502. Support; 503. Vibration motor; 504. Eccentric block; 505. Vibration rod; 506. Pressure detection module; 507. Transmission block; 508. Third threaded rod; 509. Third motor. Detailed Implementation

[0037] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0038] Example 1: Please refer to Figures 1-7The present invention provides a technical solution: a welding device for a large-diameter hollow wall spiral pipe production line, comprising a power assembly 1 and a control module. A forming roller 2 is rotatably connected to the front side of the power assembly 1 via a bearing, and a plurality of forming rollers 2 are arranged in a ring on the front side of the power assembly 1. A transmission chain 3 is arranged on the outer side of the plurality of forming rollers 2, and a gear is fixedly connected to the outer wall of the forming roller 2 near the power assembly 1. A transmission wheel 4 is arranged on the left side of the front side of the power assembly 1. The transmission wheel 4 is connected to the gear on the power assembly 1 via the transmission chain 3. A first motor 5 is arranged on the upper side of the power assembly 1. The power assembly 1 and the first motor 5 are both electrically connected to the control module. A rotating rod 6 is fixedly connected to the output end of the first motor 5, and a pressure roller 7 is fixedly connected to the lower end of the rotating rod 6.

[0039] The pressure roller 7 is used to advance the wound hollow tube. A shaping mechanism 8 is provided on the right side of the power assembly 1. The shaping mechanism 8 includes a fixing component and a shaping roller 805 on the fixing component. The shaping roller 805 is used to extrude and shape the outer side of the hollow wall wound tube. A pushing mechanism 9 is provided on the front side of the power assembly 1 at the upper right side of the forming roller 2. The pushing mechanism 9 is used to support the hollow wall wound tube. A first fixing plate 11 is fixedly connected to the front side of the power assembly 1. A feeding pipe 10 is fixedly connected to the front side of the first fixing plate 11. An adjustment mechanism 14 is provided on the outer side of the rotating rod 6.

[0040] This embodiment aims to wind and form a hollow tube, and weld the hollow wall wound tube into shape using melt filler. In this application, the upper side of the feeding pipe 10 is connected to the melt filler output device. The power assembly 1 drives the transmission wheel 4 to drive the transmission chain 3 and the forming roller 2, so that several forming rollers 2 rotate synchronously. The hollow tube is output from the forming device, with one end wound around the outside of the forming roller 2. When the hollow tube passes through the rear side of the feeding pipe 10, the molten filler is output from the feeding pipe 10. The molten filler moves synchronously to the front side of the pressure roller 7. The pressure roller 7 rotates through the power output of the first motor 5, so that the pressure roller 7 squeezes the hollow tube with the molten filler forward, and then welds it to the hollow tube on the front side. When the hollow tube rotates to the front side of the pushing mechanism 9, it will be pushed forward by the pushing mechanism 9, so that the hollow tube continues to wind and form. When the excess molten filler on the outside of the hollow tube passes through the shaping roller 805, it will be rolled and bonded to the outer wall of the hollow tube by the shaping roller 805, and then shaped to form a uniform tubular shape on the outer wall.

[0041] Example 2: Please refer to Figures 1-3Based on Embodiment 1, the present invention provides a technical solution: a second fixing plate 12 is fixedly connected to the front side of the powertrain 1 at the right side of the first fixing plate 11. Two infrared ranging modules 13 are fixedly connected to the second fixing plate 12. The infrared ranging modules 13 are electrically connected to the control module. The two infrared ranging modules 13 are symmetrically arranged front and back, and the detection ends of the two infrared ranging modules 13 are facing the lower right side of the feeding pipe 10.

[0042] The propulsion mechanism 9 includes a fixed base 901. The rear side of the fixed base 901 is fixedly connected to the front side of the power assembly 1. Two limiting rods 902 are fixedly connected to the front side of the fixed base 901. A push plate 903 is slidably connected to the outer wall of the limiting rods 902. A threaded hole is opened on the push plate 903. A first threaded rod 904 is threadedly connected to the inner wall of the threaded hole. The rear end of the first threaded rod 904 is rotatably connected to the front side of the fixed base 901 through a bearing. The rear side of the shaping roller 805 is on the same plane as the rear side of the push plate 903. The shaping roller 805 can be deflected under the drive of the second motor 802.

[0043] The adjustment mechanism 14 includes a connecting assembly and a vibration mechanism 405 on the connecting assembly. The vibration mechanism 405 includes a transmission block 507. The front side of the transmission block 507 contacts the rear side of the pressure roller 7. The transmission block 507 is used to provide vibration to the pressure roller 7. The connecting assembly includes a slide rod 401. The rear end of the slide rod 401 is fixedly connected to the front side of the power assembly 1. A fixed sleeve 402 is slidably connected to the outer side of the slide rod 401. The inner wall of the fixed sleeve 402 is rotatably connected to the outer wall of the rotating rod 6 through a bearing. A threaded hole is opened on the right side of the fixed sleeve 402. A second threaded rod 403 is threadedly connected to the inner wall of the threaded hole on the fixed sleeve 402. The rear end of the second threaded rod 403 is rotatably connected to the front side of the power assembly 1 through a bearing. The connecting assembly also includes a limiting seat 404. The lower side of the limiting seat 404 is fixedly connected to the upper surface of the power assembly 1. The inner wall of the limiting seat 404 is slidably connected to the outer wall of the first motor 5.

[0044] This embodiment is intended to adapt to different welding requirements, adjust the pushing speed of the hollow tube, and accommodate different outer diameters of the hollow tube. In application: since the outer wall of the first motor 5 is slidably connected to the inner wall of the limiting seat 404, the first motor 5 can move relative to the limiting seat 404, and the fixed sleeve 402 limits the position of the rotating rod 6. The fixed sleeve 402 is adjusted by the second threaded rod 403, so the position of the pressure roller 7 is adjustable. The position of the push plate 903 is limited by the first threaded rod 904, and since the first threaded rod 904 is adjustable, the position of the push plate 903 can be adjusted.

[0045] During the welding process of the spiral tube, the position of the pressure roller 7 and the position of the push plate 903 can be adjusted to adapt to hollow tubes of different thicknesses. At the same time as the two infrared ranging modules 13 output the filler at the lower end of the feeding pipe 10, they will detect the distance between the front side of the filler and the rear side of the hollow tube and the infrared ranging module 13, and then calculate the sum of the actual thickness of the filler and the hollow tube. The operator can adjust the position of the pressure roller 7 and the push plate 903 appropriately according to the preset feeding rate and the extrusion force. When the thickness of the filler or the hollow tube does not match the preset thickness, the control module can be used to report the inspection to avoid production errors.

[0046] Example 3: Please refer to Figures 1-5 Based on Embodiment 1 and Embodiment 2, the present invention provides a technical solution: the fixing component includes a third fixing plate 801, the outer wall of the third fixing plate 801 is fixedly connected to the right side of the outer wall of the power assembly 1, a circular mounting hole is provided on the left side of the third fixing plate 801, a rotating frame 803 is rotatably connected to the inner wall of the circular mounting hole through a bearing, a second motor 802 is fixedly connected to the right side of the third fixing plate 801, the second motor 802 is electrically connected to the control module, the output end of the second motor 802 is fixedly connected to the middle of the right side of the rotating frame 803, an electric drive wheel 804 is rotatably connected to the left side of the rotating frame 803 through a bearing, and a shaping roller 805 is fixedly connected to the outer wall of the electric drive wheel 804;

[0047] This embodiment aims to adjust the shape of the molten filler on the outside of the hollow wall winding tube by adjusting the shaping roller 805. Specifically, the shaping roller 805 rotates continuously during operation to squeeze the outer wall of the hollow wall winding tube, and rolls the molten filler overflowing between the tube gaps onto the outer wall of the tube, thereby keeping the outer wall of the hollow wall winding tube smooth.

[0048] During the welding process of hollow wall spiral pipes of different thicknesses, different amounts of molten filler are required. When forming hollow wall spiral pipes with small diameters, only a small amount of filler is needed, so the amount of overflowing filler is relatively small. Under the vertical rolling of the forming roller 805, it is easy to flatten and fit. When forming large diameter pipes, due to the large amount of filler, the overflow is also large. At this time, the second motor 802 can drive the rotating frame 803 to deflect, thereby making the electric drive wheel 804 and the forming roller 805 form an angle with the weld. This allows the forming roller 805 to squeeze the overflow material, making the overflow material evenly pressed to the side. During this process, the vertical pressure applied by the forming roller 805 to the overflow material is less than the pressure of the forming roller 805 perpendicular to the weld, thereby avoiding weld depression caused by excessive squeezing of the weld by the forming roller 805.

[0049] Example 4: Please refer to Figures 1-7Based on Embodiments 1, 2, and 3, the present invention provides the following technical solution: the vibration mechanism 405 further includes a support rod 501, the rear end of which is fixedly connected to the front side of the power assembly 1, a bracket 502 is slidably connected to the outer wall of the support rod 501, a vibration motor 503 is fixedly connected to the middle of the bracket 502, an eccentric block 504 is fixedly connected to the output end of the vibration motor 503, a vibration rod 505 is fixedly connected to the front side of the bracket 502, a pressure detection module 506 is fixedly connected to the front side of the lower end of the vibration rod 505, a transmission block 507 is fixedly connected to the front side of the pressure detection module 506, a third threaded rod 508 is threadedly connected to the right side of the bracket 502, the rear end of the third threaded rod 508 is rotatably connected to the front side of the power assembly 1 via a bearing, a third motor 509 is also fixedly connected to the front side of the power assembly 1, and the output end of the third motor 509 is drivenly connected to the outer wall of the third threaded rod 508 via a gear set.

[0050] The pressure detection module 506 is electrically connected to the control module, and the pressure detection module 506 is used to detect the pressure between the transmission block 507 and the vibration rod 505. The third motor 509 is electrically connected to the control module, and the third motor 509 is used to drive the third threaded rod 508 to rotate.

[0051] During the welding production of large-diameter hollow-wall spiral pipes, the amount of welding filler between the hollow pipes is relatively large. Welding the filler to both sides of the hollow pipes by extrusion alone may cause excessive pressure on the hollow pipes and cause deformation. Therefore, during the welding process, the vibration motor 503 can be started to drive the eccentric block 504 to rotate, which in turn causes the vibration rod 505 to vibrate. At this time, the third motor 509 drives the gear set to rotate, causing the support 502 to move forward, so that the front side of the transmission block 507 contacts the rear side of the pressure roller 7, thereby causing the pressure roller 7 to vibrate synchronously. The pressure roller 7 transmits the vibration through the hollow pipe to the inside of the filler, so that the filler can be filled between the two hollow pipes more quickly and evenly, avoiding excessive pressure on the hollow pipes.

[0052] During this process, the pressure detection module 506 monitors the pressure between the transmission block 507 and the vibration rod 505 in real time. After the pressure peak reaches the threshold, the third motor 509 stops pushing the support 502, so that the vibration of the transmission block 507 on the pressure roller 7 is kept within the preset range, avoiding excessive pushing of the transmission block 507 by the third motor 509, which would cause the amplitude of the pressure roller 7 to be too large and affect the welding of the hollow tube.

[0053] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0054] Finally, it should be noted that the above descriptions are merely preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A large-diameter hollow wall winding pipe production line welding device, comprising a power assembly (1) and a control module, the front side of the power assembly (1) is rotatably connected with a forming roller (2) through a bearing, and a plurality of forming rollers (2) are arranged on the front side of the power assembly (1); the outer sides of the plurality of forming rollers (2) are provided with a transmission chain (3), and the side wall of the forming roller (2) close to the power assembly (1) is fixedly connected with a gear; the left part of the front side of the power assembly (1) is provided with a transmission wheel (4), which is in transmission connection with the gear on the power assembly (1) through the transmission chain (3); the upper side of the power assembly (1) is provided with a first motor (5), and the power assembly (1) and the first motor (5) are electrically connected with the control module; the output end of the first motor (5) is fixedly connected with a rotating rod (6), and the lower end of the rotating rod (6) is fixedly connected with a pressure roller (7); The pressure roller (7) is used for advancing the wound hollow pipe, and the right side of the power assembly (1) is provided with a shaping mechanism (8), characterized in that: The shaping mechanism (8) comprises a fixing assembly and a shaping roller (805) on the fixing assembly, and the shaping roller (805) is used for extruding and shaping the outer side of the hollow wall winding pipe; The front side of the power assembly (1) is provided with an advancing mechanism (9) at the right upper part of the forming roller (2), which is used for supporting the hollow wall winding pipe; The front side of the power assembly (1) is fixedly connected with a first fixed plate (11), the front side of the first fixed plate (11) is fixedly connected with a feeding pipe (10), and the outer side of the rotating rod (6) is provided with an adjusting mechanism (14); The adjusting mechanism (14) comprises a connecting assembly and a vibration mechanism (405) on the connecting assembly, the vibration mechanism (405) comprises a conduction block (507), the front side of the conduction block (507) is in contact with the rear side of the pressure roller (7), and the conduction block (507) is used for providing vibration to the pressure roller (7).

2. A large diameter hollow profiled wall pipe production line welding device according to claim 1, characterized in that: The front side of the power assembly (1) is fixedly connected with a second fixed plate (12) at the right side of the first fixed plate (11), two infrared distance measuring modules (13) are fixedly connected on the second fixed plate (12), the infrared distance measuring modules (13) are electrically connected with the control module, the two infrared distance measuring modules (13) are symmetrically arranged, and the detection ends of the two infrared distance measuring modules (13) are both directed to the right side of the lower end of the feeding pipe (10).

3. A large diameter hollow profile wall pipe production line welding apparatus according to claim 1, characterized in that: The fixed assembly includes a third fixed plate (801), the outer wall of the third fixed plate (801) is fixedly connected with the right side of the outer wall of the power assembly (1), the left side of the third fixed plate (801) is provided with a circular mounting hole, the inner wall of the circular mounting hole is rotatably connected with a rotating frame (803) through a bearing, the right side of the third fixed plate (801) is fixedly connected with a second motor (802), the second motor (802) is electrically connected with the control module, the output end of the second motor (802) is fixedly connected with the right middle part of the rotating frame (803), the left side of the rotating frame (803) is rotatably connected with an electric drive wheel (804) through a bearing, and the outer wall of the electric drive wheel (804) is fixedly connected with a shaping roller (805).

4. A large diameter hollow profile wall pipe production line welding apparatus according to claim 1, characterized in that: The advancing mechanism (9) includes a fixed seat (901), the rear side of the fixed seat (901) is fixedly connected with the front side of the power assembly (1), the front side of the fixed seat (901) is fixedly connected with two limiting rods (902), the outer wall of the limiting rod (902) is slidably connected with a push plate (903), a threaded hole is formed in the push plate (903), the inner wall of the threaded hole is threadedly connected with a first threaded rod (904), and the rear end of the first threaded rod (904) is rotatably connected with the front side of the fixed seat (901) through a bearing.

5. A large diameter hollow profile wall pipe production line welding apparatus according to claim 4, characterized in that: The rear side of the shaping roller (805) is in the same plane as the rear side of the push plate (903), and the shaping roller (805) can be deflected under the drive of the second motor (802).

6. A large diameter hollow profile wall pipe production line welding apparatus according to claim 1, characterized in that: The connecting assembly includes a sliding rod (401), the rear end of the sliding rod (401) is fixedly connected with the front side of the power assembly (1), the outer side of the sliding rod (401) is slidably connected with a fixed sleeve (402), the inner wall of the fixed sleeve (402) is rotatably connected with the outer wall of the rotating rod (6) through a bearing, a threaded hole is formed in the right side of the fixed sleeve (402), the threaded hole in the fixed sleeve (402) is threadedly connected with a second threaded rod (403), the rear end of the second threaded rod (403) is rotatably connected with the front side of the power assembly (1) through a bearing, and the connecting assembly further includes a limiting seat (404), the lower side of the limiting seat (404) is fixedly connected with the upper surface of the power assembly (1), and the inner wall of the limiting seat (404) is slidably connected with the outer wall of the first motor (5).

7. A large diameter hollow profile wall pipe production line welding apparatus according to claim 6, characterized in that: The vibration mechanism (405) further includes a frame rod (501), the rear end of the frame rod (501) is fixedly connected with the front side of the power assembly (1), the outer wall of the frame rod (501) is slidably connected with a support (502), the middle part of the support (502) is fixedly connected with a vibration motor (503), the output end of the vibration motor (503) is fixedly connected with an eccentric block (504), the front side of the support (502) is fixedly connected with a vibration rod (505), the lower end of the front side of the vibration rod (505) is fixedly connected with a pressure detection module (506), the front side of the pressure detection module (506) is fixedly connected with a conduction block (507), the right side of the support (502) is threadedly connected with a third threaded rod (508), the rear end of the third threaded rod (508) is rotatably connected with the front side of the power assembly (1) through a bearing, the front side of the power assembly (1) is further fixedly connected with a third motor (509), and the output end of the third motor (509) is drivingly connected with the outer wall of the third threaded rod (508) through a gear set.

8. A large diameter hollow profile wall pipe production line welding apparatus according to claim 7, characterized in that: The pressure detection module (506) is electrically connected with a control module, and the pressure detection module (506) is used for detecting the pressure between the conduction block (507) and the vibration rod (505), the third motor (509) is electrically connected with the control module, and the third motor (509) is used for driving the third threaded rod (508) to rotate.

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