A spiral steel pipe production equipment

Abstract

A spiral steel pipe production equipment, it includes uncoiler, draw volume device, flattening device, milling device, delivery device, forming device in line, the side of forming device is provided with welding device, transfer device. The present application adopts ground transfer track, and the transfer is safe and energy-saving, the uncoiler structure is simple, the steel plate roll installation is convenient, the welding machine rack is connected with the speed reducer through the fixed pulley and the lifting rope, the welding machine position can be accurately adjusted to adapt to the welding seam welding of spiral steel pipes with different diameters, and the vibration is reduced, and the shaking is not produced, the welding agent falling position is accurate and controllable, the welding seam is regular, and the welding quality is good.

Description

Technical Field

[0001] This invention relates to the field of steel pipe production and processing, specifically to a spiral steel pipe production equipment. Background Technology

[0002] Steel pipe is a widely used steel structural component. In the process of producing steel pipe by processing steel plate coils, the steel plate coil needs to be uncoiled, leveled, and milled before being sent to a forming device to be rolled into a circular tube blank with an opening gap. When the tube is rolled into a circular tube blank on the forming equipment, the opening gap needs to be pre-welded before being sent to the welding mechanism for submerged arc precision welding, thus forming a steel pipe. Because the weld is spiral, it is called a spiral steel pipe.

[0003] In the production process of spiral welded steel pipes, steel plate coils need to be placed on an uncoiler to uncoil. Currently, the installation method for steel plate coils is to first place the steel plate coil on the uncoiler, adjust it to the appropriate position, and then insert the rotating shaft. This makes the installation process of steel plate coils relatively complicated, and the structure of the uncoiler is also relatively complicated.

[0004] In addition, the opening gap of the circular tube blank needs to be welded. This requires milling the weld joints on both sides of the steel plate coil to ensure a smooth weld and improve the welding effect. Currently, the welding equipment uses a suspension system on the frame, with the welding machine mounted on the suspension. During spiral welds, the steel pipe rotates and moves simultaneously, causing vibrations and even slight shaking of the unit. This results in the flux falling off-center from the weld, creating an "S"-shaped trajectory that deviates from the weld seam, leading to irregular weld shapes and affecting weld quality and appearance.

[0005] The steel pipe production process involves multiple processing steps, requiring the transfer of steel pipes from one workstation to another. After uncoiling, leveling, and milling, the steel coil is fed into a forming device for final rolling. The equipment for each process needs to be compactly arranged and aligned in a straight line, allowing the steel plate to be directly delivered from one device to the next. However, in actual production, due to space constraints, the rolled steel pipes are typically transported by hoisting, requiring lifting equipment and professional personnel, which is inconvenient and prone to safety hazards. If a rail system could be used to directly transfer steel pipes from one workstation to another, these problems would be solved. However, current conveyor systems can only transport in a straight line, while the various processes in steel pipe production are not necessarily distributed along a straight line; turning conveyors are needed, which requires the steel pipe to be able to stop at a fixed position for reversal. Summary of the Invention

[0006] The purpose of this invention is to provide a spiral steel pipe production equipment that can solve the above-mentioned problems, has a simple structure, simplifies the operation process, and ensures production quality.

[0007] The technical solution adopted by the present invention to solve its technical problem is as follows: it includes an uncoiler, a coiling device, a leveling device, a milling device, a delivery device, and a forming device arranged in a straight line. A welding device and a transfer device are arranged on the side of the forming device. The welding device includes a frame, a translation platform, upper and lower platforms, a fixed pulley block, and a reduction motor. Fixed pulley blocks are arranged on both sides of the top of the frame. The upper and lower platforms are connected to the fixed pulley blocks by a suspension rope. The other end of the suspension rope is connected to the reduction motor. The reduction motor is arranged on the frame. A translation platform is arranged below the upper and lower platforms. The welding machine is fixed on the upper and lower platforms.

[0008] Preferably, the fixed pulley group includes fixed pulley I and fixed pulley III arranged side by side, lifting lugs are provided on both sides of the upper and lower platforms, and fixed pulley II is provided next to the lifting lugs. One end of the lifting rope is connected to the output shaft of the reduction motor, and then passes through fixed pulley I, fixed pulley II and fixed pulley III in sequence before being connected to the lifting lugs.

[0009] Preferably, the upper and lower platforms are provided with sliding grooves I on the beams on both sides, and the translation platform is provided with hanging ears on both sides, which are installed in the sliding grooves I.

[0010] Preferably, the frame is provided with arc-shaped supports on both sides, each arc-shaped support including two symmetrically arranged arc-shaped grooves, a support seat I is provided on the arc-shaped grooves, a support guide roller is provided on the support seat I, the arc-shaped supports are fixedly installed by a base, and a bottom support guide roller is provided between the two arc-shaped grooves.

[0011] Preferably, the uncoiler includes two fixed frames symmetrically mounted on the uncoiler frame. The uncoiler frame is also provided with slide rails, which are specifically located on both sides of the two fixed frames. A movable frame is mounted on the slide rails. The movable frame has bearing holes, and the fixed frame has shaft grooves. The bottom of the shaft groove is semi-circular, and the center of the semi-circle is on the same straight line as the center of the bearing hole. A shaft is installed between the two shaft grooves, and bearings are provided at both ends of the shaft.

[0012] Preferably, the transfer device includes two or more sets of tracks. One end of each track is provided with a toggle device and a steel pipe support, with the steel pipe support positioned between two adjacent tracks. The other end is provided with a set of transmission wheels, which are positioned near the tracks. The tracks are provided with speed reduction blocks and flexible speed reduction blocks. The set of transmission wheels is fixedly connected to the output shaft of a motor, and the toggle device is connected to a drive cylinder.

[0013] Preferably, the deceleration block is fitted onto the track, and a positioning stake I is provided next to the deceleration block, with the positioning stake I located near one end of the conveyor wheel assembly; the flexible deceleration block is fitted onto the track, and a positioning stake II is provided next to the flexible deceleration block, with the positioning stake II located near one end of the conveyor wheel assembly; a stop seat is also provided between two adjacent tracks, with the stop seat located next to the conveyor wheel assembly.

[0014] Preferably, the transmission wheel assembly includes a wheel seat, a rotating shaft, and a transmission wheel. The transmission wheel has rotating shafts at both ends. The transmission wheel is mounted on the wheel seat via the rotating shafts. One end of the rotating shaft passes through the wheel seat and is fixedly connected to the output shaft of the motor. The outer diameters at both ends of the transmission wheel are larger than the outer diameter at the middle.

[0015] Preferably, the steel pipe support has a sliding groove II in the middle, and two support seats II are provided on the sliding groove II. The support seats II can move within the sliding groove II, and the support seats II adopt a wheel-shaped structure.

[0016] Preferably, a butt welding machine is provided between the leveling device and the milling device.

[0017] The beneficial effects of this invention are:

[0018] 1. The uncoiler has a simple structure, and the steel plate coil is easy and quick to install.

[0019] 2. The welding machine platform includes upper and lower frames and a sliding frame, which can adjust the position of the welding machine to accommodate spiral seam steel pipes of different diameters. The upper and lower frames are connected to the reduction motor via fixed pulleys and suspension ropes, allowing for precise position adjustment. The pulleys slide on the frame, enabling the entire frame to move smoothly up and down. The welding machine is fixed on the upper and lower frames, which reduces vibration and prevents shaking. The flux drop position is accurate and controllable.

[0020] 3. The spiral steel pipe on the steel pipe support is moved away from the support by the actuating device and rolls on the track. The track is equipped with two deceleration blocks. The steel pipe rolls over the deceleration blocks and is greatly decelerated. Then it passes over the flexible deceleration block and is decelerated again. It rolls slowly onto the conveyor wheel and stops on the conveyor wheel by the stop seat. The motor is started to drive the conveyor wheel to rotate and convey the steel pipe in the direction of the vertical track, realizing the turning and conveying of the steel pipe. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the structure of the present invention.

[0022] Figure 2 This is a structural diagram of an uncoiler.

[0023] Figure 3 yes Figure 2 AA view.

[0024] Figure 4 This is a schematic diagram of the welding device (I).

[0025] Figure 5 This is a schematic diagram of the welding device (II).

[0026] Figure 6 This is a schematic diagram of the transfer device.

[0027] Figure 7This is a schematic diagram of the speed reduction block.

[0028] Figure 8 This is a schematic diagram of the flexible speed reduction block.

[0029] Figure 9 This is a structural diagram of the slide and support base.

[0030] Figure 10 This is a schematic diagram of the stop seat structure.

[0031] Wherein: 1-Uncoiler; 101-Fixed frame; 102-Moving frame; 103-Shaft groove; 104-Bearing hole; 105-Uncoiler frame; 106-Sliding support groove; 107-Positioning hole; 108-Slide rail; 109-Side rail; 110-Bearing; 111-Shaft; 2-Winding device; 3-Leveling device; 4-Edge milling device; 5-Delivery device; 6-Forming device; 7-Welding device; 701-Arc-shaped support;

[0032] 702--Frame; 703--Pulley; 704--Welding machine; 705--Transfer platform; 706--Fluoride pipe; 707--Upper and lower platforms; 708--Fixed pulley I; 709--Fixed pulley II; 710--Fixed pulley III; 711--Lifting lug; 712--Gear motor; 713--Lifting rope; 714--Slide groove I; 715--Hanging lug; 716--Support guide roller; 717--Support base I; 718--Arc-shaped slide groove; 719--Base; 720--Bottom support guide roller; 721--Electrical control box; 722-Welding wire; 8-Transfer device; 81-Railway; 82-Reducing block; 821-Positioning pile I; 83-Flexible reducing block; 831-Positioning pile II; 84-Transfer wheel assembly; 841-Wheel seat; 842-Rotating shaft; 843-Transfer wheel; 85-Stop seat; 851-Support plate; 852-Stop plate; 86-Motor; 87-Steel pipe support; 871-Slide groove II; 872-Support seat II; 88-Actuating device; 881-Drive cylinder; 89-Column; 9-Butt welding machine. Detailed Implementation

[0033] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments.

[0034] In the description of this invention, it should be understood that the terms "upper", "lower", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0035] Example 1: This invention provides a spiral steel pipe production equipment, see reference. Figure 1It includes an uncoiler 1, a coiling device 2, a leveling device 3, a milling device 4, a delivery device 5, and a forming device 6 arranged in a straight line. The forming device 6 has a welding device 7 and a transfer device 8 on its side. (See reference...) Figures 2-3 The uncoiler 1 includes two fixed frames 101 symmetrically mounted on the uncoiler frame 105. The uncoiler frame 105 is also provided with slide rails 108, which are specifically arranged on both sides of the two fixed frames 101, with two slide rails arranged parallel to each side. A movable frame 102 is mounted on the slide rails 108. The movable frame 102 has a bearing hole 104. The fixed frame 101 has a shaft groove 103. The bottom of the shaft groove 103 is semi-circular, and the center of the semi-circle is on the same straight line as the center of the bearing hole 104. A shaft 111 is installed between the two shaft grooves 103, and bearings 110 are provided at both ends of the shaft 111.

[0036] Furthermore, the bottom of the movable frame 102 is provided with a sliding groove 106, which is fitted onto the slide rail 108 to realize the installation of the movable frame 102. Under the action of force, the sliding groove 106 can slide on the slide rail 108. In order to prevent the sliding groove 106 from disengaging from the slide rail 108, one end of the slide rail 108 rests against the fixed frame 101, and the other end is provided with a retaining edge 109.

[0037] Furthermore, a positioning hole 107 is provided on the slide rail 108, and a bolt hole is provided on the slide support groove 106. When the bolt hole moves to the positioning hole 107, the position of the movable frame 102 can be fixed by fasteners to prevent the movable frame 102 from moving during operation.

[0038] During installation, first move the two movable frames 102 away from the fixed frame 101, remove the shaft 111, insert the shaft 111 into the through hole in the center of the steel plate coil, and then install the shaft 111 into the bearing 110 to support the steel plate coil. Then, install the entire assembly into the shaft groove 103 to mount the steel plate coil onto the fixed frame 101. Next, move the movable frame 102 closer to the fixed frame 101 so that the bearing 110 mates with the bearing hole 104. When properly engaged, the bolt holes on the sliding support groove 106 align with the positioning holes 107. Use fasteners passing through the bolt holes and positioning holes 107 to fix the movable frame 102 in this position, thus installing the steel plate coil. The shaft groove 103 opens upwards, facilitating the smooth placement of the shaft containing the steel plate coil into the shaft groove 103, thereby mounting the steel plate coil onto the fixed frame 101 without further position adjustments, making installation simple and quick. The steel plate coil is then gradually pulled out and unfolded using the coil-pulling device 2. The coiling device 2 includes a moving roller and a fixed roller arranged side by side. The fixed roller is connected to a drive device. The distance between the moving roller and the fixed roller can be adjusted by adjusting the moving roller. After the moving roller and the fixed roller clamp the steel plate, the fixed roller rotates, causing the steel plate to move in a fixed direction. It should be noted that the coiling device 2 is prior art, and those skilled in the art can make reasonable selections from the prior art and apply them to the technical solution of this application. During operation, after the steel plate coil is pulled out, the steel plate is placed between the moving roller and the fixed roller. The moving roller is adjusted so that the moving roller and the fixed roller clamp the steel plate. Then, the drive device is started to rotate. After the fixed roller rotates, the friction between the fixed roller and the steel plate is used to realize the uncoiling and feeding of the steel plate coil.

[0039] The leveling device 3 is located on the side of the uncoiling device 2 away from the uncoiler 1. The leveling device 3 contains pressure rollers and can be used to further flatten the extracted steel plate, facilitating subsequent processing. It should be noted that the leveling device 3 is prior art, and those skilled in the art can make reasonable selections from existing technologies and apply them to the technical solution of this application.

[0040] The milling device 4 is located on the side of the leveling device 3 away from the coiling device 2. The milling device 4 is a welding auxiliary device specifically designed for beveling weld seams on steel plates, employing a high-speed milling principle with a cutter head. After passing through the leveling device 3, the steel plate enters the milling device 4, where the milling cutter smooths both sides of the steel plate, improving the effectiveness of subsequent welding processes. It should be noted that the milling device 4 is prior art, and those skilled in the art can make reasonable selections from existing technologies and apply them to the technical solution of this application.

[0041] The delivery device 5 is located on the side of the milling device 4 away from the leveling device 3. The delivery device 5 is connected to a drive motor and can deliver the steel plate to the forming device 6. The forming device 6 is located on the side of the delivery device 5 away from the milling device 4. The steel plate is gradually rolled up in the forming device 6 to form a circular tube blank with an opening gap, and the opening gap is pre-welded. The delivery device 5 delivers the steel plate to the forming device 6. After being rolled into a spiral steel pipe, the spiral steel pipe is further rotated and advanced to the welding device 7 for submerged arc precision welding of the threaded seam. After welding, it is pushed by the delivery device 5 to continue to be delivered to the transfer device 8. The steel pipe is cut to a suitable length by the pipe cutting device (not shown in the figure), and the end is trimmed neatly.

[0042] It should be noted that the delivery device 5, the forming device 6, and the tube cutting device are existing technologies, and those skilled in the art can make reasonable choices from the existing technologies and apply them to the technical solutions of this application.

[0043] Furthermore, a butt welding machine 9 is provided between the leveling device 3 and the milling device 4 to realize butt welding of steel plates between steel coils.

[0044] Example 2: This invention provides a spiral steel pipe production equipment, including all the technical features of Example 1. Additionally, see [link to relevant documentation]. Figures 4-5The welding device 7 includes a frame 702, a translation platform 705, an upper and lower platform 707, a fixed pulley block, and a reduction motor 712. Fixed pulleys I 708 and III 710 are arranged side-by-side on both sides of the top of the frame 702. Lifting lugs 711 are provided on both sides of the upper and lower platform 707, and a fixed pulley II 709 is provided next to the lifting lugs 711. One end of the lifting rope 713 is connected to the output shaft of the reduction motor 712, and then passes sequentially around fixed pulleys I 708, II 709, and III 710 before connecting to the lifting lugs 711. The reduction motor 712 is mounted on the frame 702, and a take-up reel is provided on the output shaft of the reduction motor 712. The lifting rope 713 is specifically connected to the take-up reel. The welding machine 704 is fixed on the upper and lower platform 707. The upper and lower platforms 707 are equipped with pulleys 703 at their four corners, which are used to mount the platforms onto the frame 702. This ensures the platforms remain stable and easy to move. Starting the reduction motor 712 lowers the suspension rope 713, which is wound around the take-up reel, causing the upper and lower platforms 707 to move downwards. This adjusts the position of the welding machine 704, aligning the flux pipe 706 and welding wire 722 with the threaded seam. At this time, the suspension rope 713 passes through fixed pulleys I 708, II 709, and III 710, changing the drive of the reduction motor 712 from a rigid connection to a flexible connection, facilitating precise adjustment of the welding machine 704's position. Reversing the motor retracts the suspension rope 713 back onto the take-up reel, allowing the upper and lower platforms 707 to move upwards to adjust the position of the flux pipe 706 and welding wire 722. A translation platform 705 is installed below the upper and lower platforms 707. An electrical control box 721 is mounted on the translation platform 705 and is electrically connected to the reduction motor 712 and the welding machine 704. Slide grooves I 714 are provided on the beams on both sides of the upper and lower platforms 707, and hanging ears 715 are provided on both sides of the translation platform 705, which are installed within the slide grooves I 714. The translation platform 705 can move within the slide grooves I 714, thereby moving the position of the electrical control box 721. Operators can operate the electrical control box 721 from the translation platform 705, starting and stopping the reduction motor 712 and the welding machine 704. This also facilitates observation of whether the flux pipe 706 and the welding wire 722 are properly adjusted and aligned with the threaded joint.

[0045] Furthermore, the frame 702 is provided with arc-shaped supports 701 on both sides. Each arc-shaped support 701 includes two symmetrically arranged arc-shaped grooves 718. A support seat I 717 is provided on the arc-shaped groove 718, and a support guide roller 716 is provided on the support seat I 717. The arc-shaped supports 701 are fixedly installed by a base 719. The support seat I 717 is fixedly installed in the arc-shaped groove 718 by fasteners. Loosening the fasteners allows the support seat I 717 to move within the arc-shaped groove 718, thereby adjusting the span between the two support seats I 717 to accommodate spiral welded steel pipes of different diameters. The spiral welded steel pipe is supported by the support guide roller 716 and rotates forward on the support guide roller 716. The driving power comes from the delivery device 5, and the welding machine 704 is turned on to perform thread welding.

[0046] Furthermore, a bottom support guide roller 720 is provided between the two arc-shaped grooves 718. When the diameter of the spiral welded steel pipe is relatively small, and the arc-shaped support 701 is difficult to form effective support, the bottom support guide roller 720 can form effective support.

[0047] Furthermore, since the upper and lower platforms 707 need to move, the driving force is transmitted through steel wire ropes. Maintaining the balance of the platforms and reducing their own weight helps the entire platform remain stable and also contributes to energy conservation. A translation platform 705 is provided at one end of the upper and lower platforms 707, so the welding machine 704 can be set at the other end of the upper and lower platforms 707. The location where the welding machine 704 is set requires a base plate, while the end where the upper and lower platforms 707 are set does not need a base plate, which also facilitates the operator's movement on the translation platform 705.

[0048] Example 3: This invention provides a spiral steel pipe production equipment, including all the technical features of Examples 1 and 2. Additionally, see [link to relevant documentation]. Figures 6-10The transfer device 8 includes two or more sets of tracks 81, a set of conveyor wheels 84, a steel pipe support 87, and a turning device 88. The turning device 88 and the steel pipe support 87 are located at the right end of each track 81, with the steel pipe support 87 positioned between two adjacent tracks 81. The turning device 88 is located to the right of the steel pipe support 87. The conveyor wheel set 84 is located at the left end of each track 81, near the track 81. The turning device 88 is connected to a drive cylinder 81. Thus, for the spiral steel pipe on the steel pipe support 87, the turning device 88, under the action of the drive cylinder 881, can turn the steel pipe to roll to the left, passing through the track 81 to reach the conveyor wheel set 84. The track 81 is equipped with a deceleration block 82 and a flexible deceleration block 83. The flexible deceleration block 83 is located to the left of the deceleration block 82. The steel pipe rolls over the deceleration block 82, experiencing a significant deceleration, and then passes over the flexible deceleration block 83, where it is further decelerated, rolling very slowly onto the conveyor wheel set 84. The conveyor wheel assembly 84 includes a wheel base 841, a rotating shaft 842, and a conveyor wheel 843. The conveyor wheel 843 has rotating shafts 842 at both ends, and is mounted on the wheel base 841 via the rotating shafts 842. One end of the rotating shaft 842 passes through the wheel base 841 and is fixedly connected to the output shaft of the motor 86. Starting the motor 86 drives the conveyor wheel 843 to rotate, conveying the steel pipe towards the vertical track 81. The outer diameter at both ends of the conveyor wheel 843 is larger than its middle outer diameter, which facilitates stable placement of the steel pipe on the conveyor wheel 843 and promotes stable conveying of the steel pipe.

[0049] Furthermore, the deceleration block 82 is mounted on the track 81, and a positioning post I 821 is provided next to the deceleration block 82. The positioning post I 821 is located at the end near the transmission wheel assembly 84 to prevent the deceleration block 82 from sliding on the track 81 by being carried by the steel pipe. The upper surface of the deceleration block 82 has an arc-shaped surface. (See reference...) Figure 3 The flexible deceleration block 83 is mounted on the track 81. A positioning post II 831 is provided next to the flexible deceleration block 83. The positioning post II 831 is located at the end near the transmission wheel assembly 84 to prevent the flexible deceleration block 83 from sliding on the track 81 by the steel pipe. The upper surface of the flexible deceleration block 83 is an arc-shaped surface. The flexible deceleration block 83 can be made of rubber material.

[0050] Furthermore, to prevent the steel pipe from escaping the conveyor wheel assembly 84 due to inertia, a stop seat 85 is provided between two adjacent tracks 81, and the stop seat 85 is located next to the conveyor wheel assembly 84. The stop seat 85 includes a support plate 851 and a stop plate 852. The upper surface of the support plate 851 can be set to be at the same height as the upper surface of the minimum outer diameter of the conveyor wheel 843. The stop plate 852 is inclinedly set on the support plate 851 to stop the steel pipe and make it stop stably on the conveyor wheel 843, which is convenient for the next conveying step.

[0051] Furthermore, the steel pipe support 87 is provided with a sliding groove II 871 in the middle, and two support seats II 872 are provided on the sliding groove II 871. The support seats II 872 are fastened in the sliding groove II 871 by fasteners. By loosening the fasteners, the support seats II 872 can move within the sliding groove II 871 to adjust the span of the two support seats II 872, which is convenient for accommodating the transportation of steel pipes of different diameters. The sliding groove II 871 has an arc-shaped structure, and the support seats II 872 adopt a wheel-shaped structure to facilitate the application of tubular structures of steel pipes.

[0052] Furthermore, the track 81 is fixedly installed via the two end columns 89.

[0053] The spiral steel pipe is conveyed from the welding device 7 and rests on the steel pipe support 87. The drive cylinder 881 is activated, and the actuating device 88 actuates the steel pipe, driving it to roll from one end of the track 81 to the other. The track 81 is equipped with a deceleration block 82 and a flexible deceleration block 83. The steel pipe is significantly decelerated by the deceleration block 82 and further decelerated by the flexible deceleration block 83, rolling very slowly onto the conveyor wheel 843, where it stops due to the action of the stop seat 85. After the steel pipe comes to a stop, the motor 86 is started, driving the conveyor wheel 843 to rotate, conveying the steel pipe in a direction perpendicular to the track 81, thus achieving the turning and conveying of the spiral steel pipe.

[0054] The above description is merely a preferred embodiment of the present invention and is not intended to limit the invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A spiral steel pipe production equipment, characterized in that: The assembly includes an uncoiler, a coiling device, a leveling device, a milling device, a delivery device, and a forming device arranged in a straight line. The forming device has a welding device and a transfer device on its side. The welding device includes a frame, a translation platform, upper and lower platforms, a fixed pulley block, and a reduction motor. The frame has fixed pulley blocks on both sides of its top. The upper and lower platforms are connected to the fixed pulley blocks by a suspension rope. The other end of the suspension rope is connected to the reduction motor, which is mounted on the frame. The translation platform is located below the upper and lower platforms, and the welding machine is fixed on the upper and lower platforms. The transfer device includes two or more sets of tracks. One end of each track is equipped with a toggle device and a steel pipe support, with the steel pipe support positioned between two adjacent tracks. The other end is equipped with a set of transmission wheels, which are positioned near the tracks. The tracks are equipped with speed reduction blocks and flexible speed reduction blocks. The set of transmission wheels is fixedly connected to the output shaft of a motor, and the toggle device is connected to a drive cylinder. The deceleration block is mounted on the track, and a positioning stake I is set next to the deceleration block. The positioning stake I is set at one end close to the conveyor wheel assembly. The flexible deceleration block is mounted on the track, and a positioning stake II is set next to the flexible deceleration block. The positioning stake II is set at one end close to the conveyor wheel assembly. A stop seat is also set between two adjacent tracks, and the stop seat is set next to the conveyor wheel assembly. The conveyor wheel assembly's conveying direction is perpendicular to the track direction.

2. The spiral steel pipe production equipment according to claim 1, characterized in that: The fixed pulley group includes fixed pulley I and fixed pulley III arranged side by side. Lifting lugs are provided on both sides of the upper and lower platforms. Fixed pulley II is provided next to the lifting lugs. One end of the lifting rope is connected to the output shaft of the reduction motor, and then passes through fixed pulley I, fixed pulley II and fixed pulley III in sequence before being connected to the lifting lugs.

3. The spiral steel pipe production equipment according to claim 1, characterized in that: The upper and lower platforms are provided with sliding grooves I on the beams on both sides, and the translation platform is provided with hanging ears on both sides, which are installed in the sliding grooves I.

4. The spiral steel pipe production equipment according to claim 1, characterized in that: The frame is provided with arc-shaped supports on both sides. Each arc-shaped support includes two symmetrically arranged arc-shaped grooves. A support seat I is provided on the arc-shaped grooves, and a support guide roller is provided on the support seat I. The arc-shaped supports are fixedly installed by a base, and a bottom support guide roller is provided between the two arc-shaped grooves.

5. The spiral steel pipe production equipment according to claim 1, characterized in that: The uncoiler includes two fixed frames symmetrically mounted on the uncoiler frame. The uncoiler frame is also provided with slide rails, which are specifically located on both sides of the two fixed frames. A movable frame is mounted on the slide rails. The movable frame has bearing holes, and the fixed frame has shaft grooves. The bottom of the shaft groove is semi-circular, and the center of the semi-circle is on the same straight line as the center of the bearing hole. A shaft is installed between the two shaft grooves, and bearings are provided at both ends of the shaft.

6. The spiral steel pipe production equipment according to claim 1, characterized in that: The transmission wheel assembly includes a wheel base, a rotating shaft, and a transmission wheel. The transmission wheel has rotating shafts at both ends. The transmission wheel is mounted on the wheel base via the rotating shafts. One end of the rotating shaft passes through the wheel base and is fixedly connected to the output shaft of the motor. The outer diameters at both ends of the transmission wheel are larger than the outer diameter at the middle.

7. The spiral steel pipe production equipment according to claim 1, characterized in that: The steel pipe support has a sliding groove II in the middle, and two support seats II are provided on the sliding groove II. The support seats II can move within the sliding groove II, and the support seats II adopt a wheel-shaped structure.

8. The spiral steel pipe production equipment according to claim 1, characterized in that: A butt welding machine is installed between the leveling device and the milling device.

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