Crimping machine for spiral steel pipe production

Abstract

The utility model relates to the technical field of spiral steel pipe production, and discloses a crimping machine for spiral steel pipe production, which comprises a working platform, a plurality of groups of correction components are fixedly mounted at the top of the working platform, extension plates are fixedly mounted on the side surfaces of the correction components, and guide components are fixedly mounted at the tops of the extension plates and the working platform. Compared with a traditional device, along with rotation of the chain, the component guiding piece can flexibly move on the outer surfaces of the multiple sets of correcting assemblies, the distance between the component guiding piece and the second fixing plate is accurately adjusted, and therefore strip steel coil plates of different sizes can smoothly pass through the correcting link, and the correcting efficiency is improved. The problem that due to the fact that the size is not matched, position deviation occurs when the strip steel coil plate is corrected through the correcting assembly is effectively avoided, it is ensured that the strip steel coil plate can accurately enter the crimping machine, meanwhile, the guiding piece can limit the strip steel coil plate, crimping is started from the edge-most position of the crimping machine, the forming precision and the production efficiency of products are greatly improved, and the production cost is reduced. The rejection rate is reduced.

Description

Technical Field

[0001] This utility model relates to the field of spiral steel pipe production technology, and more specifically, to a coiling machine for spiral steel pipe production. Background Technology

[0002] Spiral welded steel pipe is a common industrial pipe material with a rigorous and unique manufacturing process. It uses strip steel coils as the main raw material and undergoes preliminary processing through specific extrusion molding technology under normal temperature conditions. During production, the strip steel is precisely fed into an advanced pipe welding unit and undergoes repeated rolling action by multiple rollers. The strip steel is gradually rolled up from a flat state to slowly form a circular pipe blank with an opening gap. Subsequently, the opening gap of the pipe blank is meticulously welded using an advanced process of automatic double-wire double-sided submerged arc welding, ultimately successfully producing a sturdy, durable, and reliable spiral welded steel pipe.

[0003] Existing spiral welded steel pipe production coiling machines play a crucial role in the spiral welded steel pipe production process. However, they have several shortcomings in the initial raw material processing stage. Traditional equipment has significant limitations in the straightening and transportation of raw steel strip coils. On the one hand, its straightening and transportation specifications are very limited, usually only able to operate on steel strip coils of specific specifications, making it difficult to flexibly adapt to steel strips of different sizes and thicknesses. This greatly reduces its applicable production range and cannot meet diverse order demands. On the other hand, during long-term continuous operation, due to the continuous operation of the pressure rollers in the straightening components, slight differences in the rotation efficiency of each set of pressure rollers gradually emerge, causing the steel strip position to shift. This positional deviation makes it impossible to accurately start coiling from the edge of the coiling machine, thus affecting the product forming quality and production efficiency. Therefore, improvements and optimizations are needed. Utility Model Content

[0004] In order to overcome the shortcomings of the existing technology, this utility model provides a coiling machine for spiral steel pipe production, which has the advantage of strong adaptability.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a coiling machine for producing spiral steel pipes, comprising a working platform, a plurality of straightening components fixedly installed on the top of the working platform, an extension plate fixedly installed on the side of the straightening components, a guide component fixedly installed on the extension plate and the top of the working platform, the guide component including a support frame fixedly installed on the top of the extension plate and the working platform, a roller rotatably installed on the inner side of the support frame, a third gear fixedly sleeved on the outer surface of the roller, two of the third gears being connected by chain transmission, a second motor base fixedly installed on the top of the extension plate, a bidirectional power motor fixedly installed on the top of the second motor base, and the output shafts on both sides of the bidirectional power motor passing through the interiors of the three third gears (left, middle, and right), with the third gears fixedly sleeved on the outer surface of the output shafts of the bidirectional power motor, a guide member fixedly installed on the top of the chain, and all three guide members being fixedly connected to the guide member.

[0006] As a preferred embodiment of this utility model, a curling machine is fixedly installed on the right side of the working platform. Limiting components are fixedly installed on both sides of the top of the curling machine. The limiting components include fixed brackets fixedly installed on both sides of the top of the curling machine. A sliding groove is opened on the inner side of the fixed bracket. A lead screw is rotatably installed inside the fixed bracket and passes through the fixed bracket. A slider is threaded on the outer surface of the lead screw and both ends of the lead screw pass through the slider and the slider is slidably installed inside the sliding groove. A rotating block is fixedly installed on the top of the lead screw. An arc-shaped frame is fixedly installed between the two sliders. A guide shaft is rotatably installed on the inner side of the arc-shaped frame.

[0007] As a preferred embodiment of this utility model, the correction assembly includes a first fixed plate fixedly installed on the top of the work platform, a second fixed plate fixedly installed on the top of the work platform and located at the far end of the first fixed plate, upper pressure rollers rotatably installed on both sides between the first and second fixed plates and extending through the first and second fixed plates, and lower pressure rollers rotatably installed on both sides between the first and second fixed plates and located at the lower end of the upper pressure rollers and extending through the first and second fixed plates, a first gear fixedly installed on one end of each of the upper and lower pressure rollers and meshing with each other, and a second gear fixedly installed on the other end of each of the upper pressure rollers, the two second gears being connected by a synchronous belt drive, a first motor base fixedly installed on the top of the extension plate, a power motor fixedly installed on the top of the first motor base and the other end of the power motor being fixedly connected to the second gear.

[0008] As a preferred embodiment of the present invention, a water spraying assembly is fixedly installed on the left side of the working platform. The water spraying assembly includes a C-shaped bracket fixedly installed on the left side of the working platform. A connecting water pipe is fixedly installed on the inner side of the C-shaped bracket. A nozzle is fixedly installed on the outer surface of the connecting water pipe and they are interconnected. One end of the connecting water pipe is fixedly connected to a water receiving pipe and extends out of the C-shaped bracket.

[0009] As a preferred embodiment of the present invention, a stabilizing component is fixedly installed between the first fixing plate and the second fixing plate. The stabilizing component includes a guide post fixedly installed between the first fixing plate and the second fixing plate. A guide sleeve is fixedly installed on the side of the guide component, and the guide post passes through the inside of the guide sleeve.

[0010] As a preferred embodiment of this utility model, the outer surface of the working platform is provided with a water leakage groove, and a water storage tank is slidably installed inside the working platform.

[0011] As a preferred technical solution of this utility model, the bottom of the working platform and the curling machine are fixedly installed with a base, and the base is fixedly installed around the bottom of the working platform and the curling machine.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0013] 1. This utility model utilizes three third gears (left, center, and right) that rotate, which in turn drive a chain to rotate the third gear on the other side. As the chain rotates, it moves the guide component across the outer surface of multiple straightening components. This movement adjusts the distance between the guide component and the second fixed plate, allowing steel coils of different sizes to pass through. This prevents positional shifts during straightening, ensuring accurate entry into the coiling machine for coiling from the outermost edge. Compared to traditional devices, this design allows the guide component to move flexibly across the outer surface of multiple straightening components as the chain rotates, precisely adjusting the distance between it and the second fixed plate. This increases the smooth passage of steel coils of different sizes through the straightening process, effectively avoiding positional shifts caused by size mismatches. It ensures the steel coils enter the coiling machine accurately, and the guide component also limits the coil's movement, starting coiling from the outermost edge of the coiling machine. This significantly improves product forming accuracy and production efficiency, reduces scrap rates, and saves costs for businesses.

[0014] 2. This utility model uses a lead screw to rotate, which drives a slider to slide up and down in a groove. As the slider moves up and down, it moves the arc-shaped frame up and down. Simultaneously, the slider on the other side slides synchronously in a set sliding rod. This process then coils the strip steel. The coiled strip steel is output from the coiling machine, contacting the guide shaft during the winding process. Under the guidance of multiple guide shafts, the final winding is completed. Compared to traditional devices, this device, where the coiled strip steel is output from the coiling machine and contacts the guide shaft during winding, significantly improves adaptability to different strip steel, enhances coiling accuracy and stability, reduces defects caused by improper coiling, and can flexibly handle different specifications of strip steel, thus improving production efficiency and reducing production costs. Attached Figure Description

[0015] Figure 1 This is a frontal three-dimensional appearance structural diagram of the present utility model;

[0016] Figure 2 This is a schematic diagram of the corrective component structure of this utility model;

[0017] Figure 3 This is a schematic diagram of the chain structure of this utility model;

[0018] Figure 4 This is a schematic diagram of the water storage tank structure of this utility model;

[0019] Figure 5 This is a schematic diagram of the arc-shaped frame structure of this utility model.

[0020] In the diagram: 1. Working platform; 2. Extension plate; 3. Correction assembly; 301. First motor base; 302. Power motor; 303. First fixing plate; 304. Synchronous belt; 305. Upper pressure roller; 306. Lower pressure roller; 307. First gear; 308. Second fixing plate; 309. Second gear; 4. Guide assembly; 401. Second motor base; 402. Bidirectional power motor; 403. Support frame; 404. Roller; 405. Third gear; 40 6. Chain; 407. Guide component; 5. Water spray assembly; 501. C-shaped bracket; 502. Connecting water pipe; 503. Nozzle; 504. Water inlet pipe; 6. Stabilizing component; 601. Guide sleeve; 602. Guide post; 7. Curling machine; 8. Limiting component; 801. Fixed bracket; 802. Slide groove; 803. Sliding block; 804. Lead screw; 805. Rotating block; 806. Arc frame; 807. Guide shaft; 9. Base; 10. Leakage groove; 11. Water storage tank. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] like Figures 1 to 5 As shown, this utility model provides a coiling machine for producing spiral steel pipes, including a working platform 1. Multiple sets of straightening components 3 are fixedly installed on the top of the working platform 1. An extension plate 2 is fixedly installed on the side of the straightening components 3. A guide component 4 is fixedly installed on the top of the extension plate 2 and the working platform 1. The guide component 4 includes a support frame 403 fixedly installed on the top of the extension plate 2 and the working platform 1. A roller 404 is rotatably installed inside the support frame 403. A third gear 405 is fixedly sleeved on the outer surface of the roller 404. The two third gears 405 are connected by a chain 406. A second motor base 401 is fixedly installed on the top of the extension plate 2. A bidirectional power motor 402 is fixedly installed on the top of the second motor base 401. The output shafts on both sides of the bidirectional power motor 402 pass through the three third gears 405 (left, middle, and right) and the third gears 405 are fixedly sleeved on the outer surface of the output shafts of the bidirectional power motor 402. A guide 407 is fixedly installed on the top of the chain 406, and all three guides 407 are fixedly connected to the guide 407.

[0023] When the operator starts the bidirectional power motor 402 via an external controller, the bidirectional output shaft will start to rotate. This rotation will drive the three third gears 405 (left, middle, and right) to rotate. The rotation of these three gears will then drive the third gear 405 on the other side to rotate via the chain 406. The rotation of the chain 406 will drive the guide 407 to move on the outer surface of the multiple sets of straightening components 3. This movement of the guide 407 will adjust the distance between it and the second fixed plate 308, allowing steel coils of different sizes to pass through.

[0024] The rotation of the three third gears 405 (left, center, and right) will drive the third gear 405 on the other side to rotate via the chain 406. When the chain 406 starts to rotate, it will drive the guide 407 to move on the outer surface of the multiple sets of straightening components 3. This movement of the guide 407 adjusts the distance between itself and the second fixed plate 308, allowing steel strip coils of different sizes to pass through. This prevents positional deviation during straightening by the straightening components 3, ensuring accurate entry into the coiling machine 7 for coiling from the outermost edge. Compared to traditional devices, this device, with the rotation of the chain 406, allows the components to move more smoothly and efficiently. The guide component 407 can move flexibly on the outer surface of multiple sets of straightening components 3, and precisely adjust the distance between it and the second fixed plate 308. This allows steel coils of different sizes to pass smoothly through the straightening process, effectively avoiding the problem of positional deviation when passing through the straightening components 3 due to size mismatch. This ensures that the steel coils can enter the coiling machine 7 accurately. At the same time, the guide component 407 can limit the steel coils, starting the coiling from the outermost position of the coiling machine 7, which greatly improves the forming accuracy and production efficiency of the product, reduces the scrap rate, and saves costs for enterprises.

[0025] The work platform 1 has a curling machine 7 fixedly installed on its right side. Limiting components 8 are fixedly installed on both sides of the top of the curling machine 7. The limiting components 8 include fixed brackets 801 fixedly installed on both sides of the top of the curling machine 7. The inner side of the fixed bracket 801 is provided with a sliding groove 802. A lead screw 804 is rotatably installed inside the fixed bracket 801 and passes through the fixed bracket 801. A slider 803 is threaded onto the outer surface of the lead screw 804 and both ends of the lead screw 804 pass through the slider 803 and the slider 803 is slidably installed inside the sliding groove 802. A rotating block 805 is fixedly installed on the top of the lead screw 804. An arc frame 806 is fixedly installed between the two sliders 803. A guide shaft 807 is rotatably installed on the inner side of the arc frame 806.

[0026] When the work is carried out by rotating the rotating block 805, the lead screw 804 will start to rotate. When the lead screw 804 starts to rotate, it will drive the slider 803 to slide up and down in the slide groove 802. When the slider 803 slides up and down, it will drive the arc frame 806 to move up and down. At the same time, the slider 803 on the other side will slide synchronously in the set slide rod. Then, the strip steel coil is rolled. The rolled strip steel coil is output by the coiling machine 7. During its winding process, it contacts the guide shaft 807. The coiling machine 7 is specifically controlled by a motor. The power output by the motor causes the limiting roller and multiple sets of coiling rollers to rotate simultaneously through the action of the transmission sprocket. The limiting roller and the multiple sets of coiling rollers rotate in opposite directions. The strip steel is rolled by the limiting roller and the multiple sets of coiling rollers.

[0027] When the lead screw 804 starts to rotate, it will drive the slider 803 to slide up and down in the slide groove 802. When the slider 803 slides up and down to adjust, it will drive the arc frame 806 to move up and down. At the same time, the slider 803 on the other side will slide synchronously in the set slide rod. Then, the strip steel coil is rolled. The rolled strip steel coil is output by the coiling machine 7. During its winding process, it contacts the guide shaft 807. Under the guidance of the multiple guide shafts 807, the final winding is completed. Compared with the traditional device, the rolled strip steel coil is output by the coiling machine 7 and contacts the guide shaft 807 during winding. The guide shaft 807 plays a guiding and limiting role, which significantly improves the adaptability to different strip steel coils, improves the accuracy and stability of winding, reduces the defects caused by improper winding, and can flexibly deal with different specifications of strip steel, improve production efficiency and reduce production costs.

[0028] The correction component 3 includes a first fixing plate 303 fixedly installed on the top of the work platform 1, a second fixing plate 308 fixedly installed on the top of the work platform 1 and located at the far end of the first fixing plate 303, upper pressure rollers 305 rotatably installed on both sides between the first fixing plate 303 and the second fixing plate 308 and passing through the first fixing plate 303 and the second fixing plate 308, and lower pressure rollers 306 rotatably installed on both sides between the first fixing plate 303 and the second fixing plate 308 and located at the lower end of the upper pressure rollers 305 and passing through the first fixing plate 303 and the second fixing plate 308. The fixed plate 303 and the second fixed plate 308, the upper pressure roller 305 and the lower pressure roller 306 are both fixedly mounted with a first gear 307 at one end and mesh with each other, the other end of the upper pressure roller 305 is fixedly mounted with a second gear 309, the two second gears 309 are connected by a synchronous belt 304, the top of the extension plate 2 is fixedly mounted with a first motor base 301, the top of the first motor base 301 is fixedly mounted with a power motor 302 and the other end of the power motor 302 is fixedly connected to the second gear 309.

[0029] The power motor 302 is started by an external controller. The output shaft of the power motor 302 will drive the second gear 309 to start rotating. When the second gear 309 starts rotating, it will drive the two second gears 309 to start rotating through the synchronous belt 304. Then, it will drive the two upper pressure rollers 305 to start rotating. When the two upper pressure rollers 305 start rotating, they will drive the first gear 307 at the other end to start rotating, thereby driving the corresponding upper and lower pressure rollers 306 to start rotating. This allows the steel coil to be straightened while the conveyor belt is in operation, which is convenient for the subsequent coiling machine 7 to coil.

[0030] The work platform 1 has a water spraying assembly 5 fixedly installed on its left side. The water spraying assembly 5 includes a C-shaped bracket 501 fixedly installed on the left side of the work platform 1. A connecting water pipe 502 is fixedly installed on the inner side of the C-shaped bracket 501. A nozzle 503 is fixedly installed on the outer surface of the connecting water pipe 502 and they are interconnected. One end of the connecting water pipe 502 is fixedly connected to a water receiving pipe 504 and extends out of the C-shaped bracket 501.

[0031] After connecting the external high-pressure water pipe to the water inlet pipe 504, the high-pressure water will pass through the connecting water pipe 502 and the nozzle 503 to perform high-pressure rinsing on the outer surface of the strip steel coil.

[0032] A stabilizing component 6 is fixedly installed between the first fixing plate 303 and the second fixing plate 308. The stabilizing component 6 includes a guide post 602 fixedly installed between the first fixing plate 303 and the second fixing plate 308. A guide sleeve 601 is fixedly installed on the side of the guide member 407, and the guide post 602 passes through the inside of the guide sleeve 601.

[0033] By passing through the guide post 602 through the guide member 407 and the guide sleeve 601, the guide member 407 can be effectively moved with a smooth force, thus avoiding uneven force distribution that could cause jamming.

[0034] The outer surface of the working platform 1 is provided with a water leakage groove 10, and a water storage tank 11 is slidably installed inside the working platform 1.

[0035] A water storage tank 11 is slidably installed inside the working platform 1, which allows water to flow down the surface after high-pressure washing. The water then flows into the inside of the water storage tank 11 through the water leakage channel 10, where it can be stored and then recycled.

[0036] The work platform 1 and the curling machine 7 are fixedly installed with a base 9 at their bottom, and the base 9 is fixedly installed around the bottom of the work platform 1 and the curling machine 7.

[0037] The base 9 is fixedly installed around the bottom of the work platform 1 and the curling machine 7, which can effectively increase the stability of the entire device and avoid it from being easily affected by external physical factors.

[0038] Working principle and usage process of this utility model:

[0039] When the operator starts the bidirectional power motor 402 via an external controller, the bidirectional output shaft will start to rotate. This rotation will drive the three third gears 405 (left, middle, and right) to rotate. The rotation of these three gears will then drive the third gear 405 on the other side to rotate via the chain 406. The rotation of the chain 406 will drive the guide 407 to move on the outer surface of the multiple sets of straightening components 3. This movement of the guide 407 will adjust the distance between it and the second fixed plate 308, allowing steel coils of different sizes to pass through.

[0040] When the work is carried out by rotating the rotating block 805, the lead screw 804 will start to rotate. When the lead screw 804 starts to rotate, it will drive the slider 803 to slide up and down in the slide groove 802. When the slider 803 slides up and down, it will drive the arc frame 806 to move up and down. At the same time, the slider 803 on the other side will slide synchronously in the set slide rod. Then, the strip steel coil is rolled. The rolled strip steel coil is output by the coiling machine 7. During its winding process, it contacts the guide shaft 807. The coiling machine 7 is specifically controlled by a motor. The power output by the motor causes the limiting roller and multiple sets of coiling rollers to rotate simultaneously through the action of the transmission sprocket. The limiting roller and the multiple sets of coiling rollers rotate in opposite directions. The strip steel is rolled by the limiting roller and the multiple sets of coiling rollers.

[0041] 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.

[0042] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A coiling machine for the production of spiral steel pipes, comprising a work platform (1), characterized in that: Multiple sets of correction components (3) are fixedly installed on the top of the work platform (1). An extension plate (2) is fixedly installed on the side of the correction component (3). A guide component (4) is fixedly installed on the top of the extension plate (2) and the work platform (1). The guide component (4) includes a support frame (403) fixedly installed on the top of the extension plate (2) and the work platform (1). A roller (404) is rotatably installed on the inner side of the support frame (403). A third gear (405) is fixedly sleeved on the outer surface of the roller (404). The two third gears (405) are connected by a passage. The extension plate (2) is connected by a chain (406) and a second motor base (401) is fixedly installed on the top of the extension plate (2). A bidirectional power motor (402) is fixedly installed on the top of the second motor base (401). The output shafts on both sides of the bidirectional power motor (402) pass through the three third gears (405) on the left, middle and right, and the third gears (405) are fixedly sleeved with the outer surface of the output shaft of the bidirectional power motor (402). A guide (407) is fixedly installed on the top of the chain (406), and the three guides (407) are all fixedly connected to the guide (407).

2. A coiling machine for producing spiral steel pipes according to claim 1, characterized in that: A curling machine (7) is fixedly installed on the right side of the working platform (1). Limiting components (8) are fixedly installed on both sides of the top of the curling machine (7). The limiting components (8) include fixed brackets (801) fixedly installed on both sides of the top of the curling machine (7). A sliding groove (802) is provided on the inner side of the fixed bracket (801). A lead screw (804) is rotatably installed inside the fixed bracket (801), and the lead screw (804) passes through the fixed bracket (801). A slider (803) is threaded onto the outer surface of the lead screw (804), and both ends of the lead screw (804) pass through the slider (803) and the slider (803) is slidably installed inside the sliding groove (802). A rotating block (805) is fixedly installed on the top of the lead screw (804). An arc frame (806) is fixedly installed between the two sliders (803). A guide shaft (807) is rotatably installed on the inner side of the arc frame (806).

3. The coiling machine for producing spiral steel pipes according to claim 1, characterized in that: The correction component (3) includes a first fixing plate (303) fixedly installed on the top of the work platform (1). A second fixing plate (308) is fixedly installed on the top of the work platform (1) and located at the far end of the first fixing plate (303). An upper pressure roller (305) is rotatably installed on both sides between the first fixing plate (303) and the second fixing plate (308) and passes through the first fixing plate (303) and the second fixing plate (308). A lower pressure roller (306) is rotatably installed on both sides between the first fixing plate (303) and the second fixing plate (308) and is located at the lower end of the upper pressure roller (305) and passes through the first fixing plate (303). The plate (303) and the second fixed plate (308) are provided. The upper pressure roller (305) and the lower pressure roller (306) are each fixedly mounted with a first gear (307) at one end and mesh with each other. The other end of the upper pressure roller (305) is fixedly mounted with a second gear (309). The two second gears (309) are connected by a synchronous belt (304). The top of the extension plate (2) is fixedly mounted with a first motor base (301). The top of the first motor base (301) is fixedly mounted with a power motor (302) and the other end of the power motor (302) is fixedly connected to the second gear (309).

4. The coiling machine for producing spiral steel pipes according to claim 1, characterized in that: A water spray assembly (5) is fixedly installed on the left side of the work platform (1). The water spray assembly (5) includes a C-shaped bracket (501) fixedly installed on the left side of the work platform (1). A connecting water pipe (502) is fixedly installed on the inner side of the C-shaped bracket (501). A nozzle (503) is fixedly installed on the outer surface of the connecting water pipe (502) and they are interconnected. One end of the connecting water pipe (502) is fixedly connected to a water receiving pipe (504) and extends out of the C-shaped bracket (501).

5. The coiling machine for producing spiral steel pipes according to claim 3, characterized in that: A stabilizing component (6) is fixedly installed between the first fixing plate (303) and the second fixing plate (308). The stabilizing component (6) includes a guide post (602) fixedly installed between the first fixing plate (303) and the second fixing plate (308). A guide sleeve (601) is fixedly installed on the side of the guide member (407), and the guide post (602) passes through the inside of the guide sleeve (601).

6. A coiling machine for producing spiral steel pipes according to claim 1, characterized in that: The outer surface of the working platform (1) is provided with a water leakage groove (10), and a water storage tank (11) is slidably installed inside the working platform (1).

7. A coiling machine for producing spiral steel pipes according to claim 1, characterized in that: The work platform (1) and the curling machine (7) are fixedly installed with a base (9), and the base (9) is fixedly installed around the bottom of the work platform (1) and the curling machine (7).

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