A seamless steel pipe bending device for building construction

Abstract

This invention discloses a seamless steel pipe bending device for building construction, belonging to the field of steel pipe bending processing technology. Its key technical features include a bending table and a feeding table. The feeding table has an inclined feeding slope. The steel pipe bending mechanism effectively achieves the bending and forming of seamless steel pipes without the need for manual secondary correction, significantly reducing the labor and time costs of the correction process. The feeding mechanism can be synchronously driven by the bending mechanism. This seamless linkage between bending, feeding, and loading effectively prevents processing interruptions and significantly improves overall processing efficiency. Simultaneously, it enables automatic feeding of each material from the feeding box, effectively controlling the amount of material fed at one time, avoiding material accumulation, and improving feeding standardization. This significantly improves the processing efficiency of steel pipe bending, offering advantages such as easy automatic feeding and bending, and high bending efficiency.

Description

Technical Field

[0001] This invention relates to the field of steel pipe bending processing, specifically to a seamless steel pipe bending device for building construction. Background Technology

[0002] Seamless steel pipes, with their core advantages such as uniform wall thickness, high compressive strength, good sealing performance, and no risk of weld cracking, are a core material in the construction industry. They are widely used in many key scenarios, including building structural support, water supply and drainage networks, fire protection pipelines, HVAC pipelines, scaffolding erection, curved steel structure components, and foundation pit support. In actual construction, due to limitations imposed by building space layout, component design, and obstacle avoidance in pipeline routing, most seamless steel pipes cannot be installed directly as straight pipes. They must be processed into bent pipe components with specific curvatures and angles using specialized bending equipment to meet on-site installation and structural stress requirements. Therefore, steel pipe bending equipment is an indispensable core piece of equipment in the pipe processing stage of construction.

[0003] In complex building layouts, pipeline obstacle avoidance, or special structural component requirements, steel pipes often need to be processed into multi-segment continuous bends to meet on-site installation and structural stress requirements. These composite bend components are increasingly widely used in prefabricated buildings, irregular steel structures, and underground integrated pipe corridors. Currently, in the construction field, the equipment for bending seamless steel pipes is mainly manual pipe benders or CNC push-bending machines. During the material feeding and bending process, manual feeding is often used, making it difficult to achieve automatic feeding and bending of individual steel pipes. This results in poor adaptability. Some methods involve batch feeding followed by batch bending, which requires manual sorting and positioning during subsequent bending. This not only increases the labor intensity but also easily leads to positioning deviations, affecting bending accuracy. It cannot effectively achieve a continuous operation mode of "bending immediately after feeding," resulting in poor applicability and failing to meet actual usage needs.

[0004] Therefore, there is a need to provide a seamless steel pipe bending device for building construction, which aims to solve the above problems. Summary of the Invention

[0005] In view of the shortcomings of the existing technology, the purpose of this invention is to provide a seamless steel pipe bending device for building construction, which aims to solve the technical problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution:

[0007] A seamless steel pipe bending device for construction includes a bending table and a feeding table. The feeding table has an inclined feeding ramp. A feeding box for feeding is located above one side of the inclined feeding ramp. The feeding box contains several seamless steel pipes of fixed length, and a feeding plate is located along one edge of the feeding box. The device also includes:

[0008] A steel pipe bending mechanism is installed on a bending table for U-shaped bending of seamless steel pipes. The steel pipe bending mechanism includes a first bending component and a second bending component for bending drive. The first bending component and the second bending component are connected in opposite rotation. A push frame for driving their rotation is also connected to the first bending component and the second bending component. A bending limit component for bending limit is also provided on one side of the first bending component and the second bending component. The bending limit component is movably installed on the bending table.

[0009] The steel pipe unloading mechanism is installed on the unloading platform and is synchronously driven by the steel pipe bending mechanism. It is used to unload seamless steel pipes one by one from the unloading box and to push them forward for loading. The steel pipe unloading mechanism includes a material feeding block for unloading seamless steel pipes one by one from the unloading box. The material feeding block is provided with a material feeding groove for receiving and placing a single seamless steel pipe, and the material feeding block is also provided with a material feeding protrusion for pushing the unloading.

[0010] As a further embodiment of the present invention, the steel pipe bending mechanism further includes a first gear and a second gear for driving the first bending member and the second bending member to rotate in opposite directions. The first bending member is fixedly mounted on the first hollow rotating cylinder, the second bending member is fixedly mounted on the second hollow rotating cylinder, and the first hollow rotating cylinder is rotatably mounted on the outside of the second hollow rotating cylinder. The second hollow rotating cylinder is rotatably mounted inside the bending table through a third connecting shaft. The first gear is fixedly mounted on the first hollow rotating cylinder, the second gear is fixedly mounted on the second hollow rotating cylinder, and the up-and-down rotation of the first gear and the second gear does not interfere with each other.

[0011] As a further embodiment of the present invention, the steel pipe bending mechanism further includes an electric push rod for driving the first gear and the second gear to rotate. The inner side of the push frame is provided with upper teeth that mesh with the first gear, and the other inner side of the push frame is also provided with lower teeth that mesh with the second gear. The push frame is square in shape and is slidably connected to the inside of the bending table. The piston rod of the electric push rod is fixedly connected to the push frame through a push tooth plate, and the electric push rod is fixedly installed inside the bending table.

[0012] As a further embodiment of the present invention, the steel pipe bending mechanism further includes a second motor for driving the bending limiting member to perform radial position adjustment. The bending limiting member is slidably connected to the inside of the movable seat by a slider. The slider is threadedly connected to the second lead screw, and the second lead screw is rotatably connected to the movable seat. The second lead screw is fixedly connected to the output shaft of the second motor, and the second motor is fixedly installed on one side of the movable seat.

[0013] As a further embodiment of the present invention, the steel pipe bending mechanism further includes a third motor for driving the bending limiting component to perform lateral adjustment. The movable seat is slidably connected to the inside of the bending table via a guide rod, and the guide rod is fixedly installed inside the bending table via a fixing plate. The movable seat is threadedly connected to a bidirectional lead screw, which is rotatably connected to the fixing plate and fixedly connected to the output shaft of the third motor. The third motor is fixedly installed on one side of the fixing plate.

[0014] As a further embodiment of the present invention, the steel pipe feeding mechanism further includes a transmission gear for driving the feeding block to flip and control the feeding. The feeding block is rotatably mounted on the feeding box via a first connecting shaft. The transmission gear is meshed with the pusher tooth plate. The transmission gear is rotatably mounted inside the protective shell via a worm gear. The worm gear is meshed with the worm wheel. The worm wheel is fixedly connected to a second connecting shaft. The second connecting shaft is rotatably mounted inside the protective shell. One end of the first connecting shaft is rotatably connected to the second connecting shaft via a bevel gear pair.

[0015] As a further embodiment of the present invention, the steel pipe unloading mechanism further includes a pusher rod for pushing the seamless steel pipe on the unloading inclined surface to the bending table. The pusher rod is fixedly connected to a docking rod via a docking slide plate. The unloading table is provided with a sliding groove for adapting to the sliding docking slide plate. A guide seat for guiding the material is provided at the junction of the unloading table and the bending table. A limiting seat for limiting the unloading is also provided on the bending table.

[0016] As a further embodiment of the present invention, the steel pipe unloading mechanism further includes a first motor for driving the push rod to move forward, one end of the connecting rod is fixedly connected to a transmission plate, the transmission plate is slidably connected to the inside of the unloading platform, and the transmission plate is threadedly connected to a first lead screw, the first lead screw is rotatably installed inside the unloading platform, the first lead screw is rotatably connected to the output shaft of the first motor through a synchronous belt, and the first motor is fixedly installed inside the unloading platform.

[0017] In summary, the embodiments of the present invention have the following beneficial effects compared with the prior art:

[0018] This invention, through its designed steel pipe bending mechanism, can effectively bend and form seamless steel pipes without the need for secondary manual correction, significantly reducing the labor and time costs of the correction process. Furthermore, it can automate the entire U-shaped bending process without manual intervention, greatly reducing labor intensity, mitigating the risks of manual operation, and significantly improving construction safety.

[0019] The steel pipe feeding mechanism can be synchronously driven by the steel pipe bending mechanism. This seamless linkage between bending, feeding, and loading effectively eliminates processing interruptions and significantly improves overall processing efficiency. At the same time, it can automatically feed the material into the feeding box one by one, effectively controlling the amount of material fed at one time, avoiding material accumulation, and improving the standardization of feeding. It can also automatically feed seamless steel pipes to the bending table, ensuring smooth operation, reducing human error, and thus significantly improving the processing efficiency of steel pipe bending.

[0020] To more clearly illustrate the structural features and effects of the present invention, the present invention will be described in detail below with reference to the accompanying drawings and specific embodiments. Attached Figure Description

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

[0022] Figure 2 This is a side view of the structure according to an embodiment of the present invention.

[0023] Figure 3 This is a schematic diagram of the seamless steel pipe being bent in an embodiment of the present invention.

[0024] Figure 4 This is a schematic diagram of the internal connection structure of the feeding box in an embodiment of the present invention.

[0025] Figure 5 This is a side view of the internal connection structure of the feeding box in an embodiment of the present invention.

[0026] Figure 6 This is a schematic diagram of the material feeding block in an embodiment of the present invention.

[0027] Figure 7 This is a schematic diagram of the connection structure of the guide seat in an embodiment of the present invention.

[0028] Figure 8 This is a schematic diagram of the internal structure of an embodiment of the present invention.

[0029] Figure 9 This is an exploded structural diagram of the connection between the first bent component and the second bent component in an embodiment of the present invention.

[0030] Figure 10 This is a schematic diagram of the connection structure of the bending limiting member in an embodiment of the present invention.

[0031] Reference numerals: 1. Bending table; 2. Unloading table; 3. Unloading ramp; 4. Protective shell; 5. Seamless steel pipe; 6. Unloading plate; 7. Unloading box; 8. Feeding block; 9. Feeding groove; 10. Feeding protrusion; 11. First connecting shaft; 12. Bevel gear pair; 13. Second connecting shaft; 14. Worm gear; 15. Worm; 16. Transmission gear; 17. Propulsion gear plate; 18. Electric push rod; 19. Push rod; 20. Connecting slide plate; 21. Connecting rod; 22. Transmission plate; 23. First lead screw; 24. Synchronous belt; 25. 26. First motor; 27. Sliding groove; 28. Guide seat; 29. ​​Limiting seat; 30. First bending component; 31. First gear; 32. Second bending component; 33. Second hollow rotating cylinder; 34. Second gear; 35. Third connecting shaft; 36. Push frame; 37. Lower tooth; 38. Upper tooth; 39. Bending limiting component; 40. Slider; 41. Second lead screw; 42. Second motor; 43. Moving seat; 44. Guide rod; 45. Bidirectional lead screw; 46. Third motor; 47. Fixing plate. Detailed Implementation

[0032] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the invention.

[0033] The specific implementation of the present invention will be described in detail below with reference to specific embodiments.

[0034] See Figures 1-10 A seamless steel pipe bending device for construction includes a bending table 1 and a feeding table 2. The feeding table 2 has an inclined feeding surface 3. A feeding box 7 for feeding is located above one side of the inclined feeding surface 3. The feeding box 7 contains several seamless steel pipes 5 of fixed length, and a feeding plate 6 is located along one edge of the feeding box 7. The device also includes:

[0035] A steel pipe bending mechanism is installed on a bending table 1 to perform U-shaped bending on the blank seamless steel pipe 5. The steel pipe bending mechanism includes a first bending member 29 and a second bending member 32 for bending drive. The first bending member 29 and the second bending member 32 are connected in opposite rotation. A push frame 36 for driving their rotation is also connected to the first bending member 29 and the second bending member 32. A bending limit member 39 for bending limit is also provided on one side of the first bending member 29 and the second bending member 32. The bending limit member 39 is movably installed on the bending table 1.

[0036] Furthermore, the steel pipe bending mechanism also includes a first gear 31 and a second gear 34 for driving the first bending member 29 and the second bending member 32 to rotate in opposite directions. The first bending member 29 is fixedly installed on the first hollow rotating cylinder 30, and the second bending member 32 is fixedly installed on the second hollow rotating cylinder 33. The first hollow rotating cylinder 30 is rotatably installed on the outside of the second hollow rotating cylinder 33. The second hollow rotating cylinder 33 is rotatably installed inside the bending table 1 through the third connecting shaft 35. The first gear 31 is fixedly installed on the first hollow rotating cylinder 30, and the second gear 34 is fixedly installed on the second hollow rotating cylinder 33. The first gear 31 and the second gear 34 rotate up and down without interfering with each other.

[0037] Furthermore, the steel pipe bending mechanism also includes an electric push rod 18 for driving the first gear 31 and the second gear 34 to rotate. The inner side of the push frame 36 is provided with an upper tooth 38 that meshes with the first gear 31, and the other inner side of the push frame 36 is also provided with a lower tooth 37 that meshes with the second gear 34. The push frame 36 is square in shape and is slidably connected to the inside of the bending table 1. The piston rod of the electric push rod 18 is fixedly connected to the push frame 36 through the push tooth plate 17, and the electric push rod 18 is fixedly installed inside the bending table 1.

[0038] Furthermore, the steel pipe bending mechanism also includes a second motor 42 for driving the bending limiting member 39 to perform radial position adjustment. The bending limiting member 39 is slidably connected to the inside of the movable seat 43 by a slider 40. The slider 40 is threadedly connected to the second lead screw 41, and the second lead screw 41 is rotatably connected to the movable seat 43. The second lead screw 41 is fixedly connected to the output shaft of the second motor 42, and the second motor 42 is fixedly installed on one side of the movable seat 43.

[0039] Furthermore, the steel pipe bending mechanism also includes a third motor 46 for driving the bending limiting member 39 to make lateral adjustments. The moving seat 43 is slidably connected to the inside of the bending table 1 through the guide rod 44, and the guide rod 44 is fixedly installed inside the bending table 1 through the fixing plate 47. The moving seat 43 is threadedly connected to the bidirectional lead screw 45, the bidirectional lead screw 45 is rotatably connected to the fixing plate 47, and the bidirectional lead screw 45 is fixedly connected to the output shaft of the third motor 46. The third motor 46 is fixedly installed on one side of the fixing plate 47.

[0040] Preferably, when bending the seamless steel pipe 5 already loaded on the bending table 1, the electric push rod 18 drives the push frame 36 connected to one end of the push tooth plate 17 to move forward. With the upper tooth 38 on the push frame 36 meshing with the first gear 31 and the lower tooth 37 meshing with the second gear 34, the first hollow drum 30 can be driven to rotate the first bending piece 29 towards the bending limit piece 39. Simultaneously, due to the structural setting, the second hollow drum 33 drives the second bending piece 32 to rotate towards the bending limit piece 39. The rotation directions of the first bending piece 29 and the second bending piece 32 are opposite. In order to better control the bending position, the second motor 42 drives the bending limit piece 39 to move radially, and the third motor 46 can also drive the bending limit piece 39 on the moving seat 43 to move laterally. This facilitates better control of the bending angle and position, facilitates bending operation, eliminates the need for manual intervention, and increases work efficiency.

[0041] This bending method effectively achieves the bending and forming of seamless steel pipes without the need for secondary manual correction, significantly reducing the labor and time costs of the correction process. Furthermore, it enables the automation of the entire U-shaped bending process, eliminating the need for manual intervention in the bending stage, greatly reducing labor intensity, mitigating the risks of manual operation, and significantly improving construction safety.

[0042] like Figures 1 to 8 As shown, this embodiment, based on the above embodiment, also includes a steel pipe unloading mechanism, which is installed on the unloading platform 2 and synchronously driven by the steel pipe bending mechanism. It is used to unload and push the seamless steel pipes 5 on the unloading box 7 one by one. The steel pipe unloading mechanism includes a material feeding block 8 for unloading the seamless steel pipes 5 one by one from the unloading box 7. The material feeding block 8 is provided with a material feeding groove 9 for receiving and placing a single seamless steel pipe 5, and the material feeding block 8 is also provided with a material feeding protrusion 10 for pushing the unloading.

[0043] Furthermore, the steel pipe feeding mechanism also includes a transmission gear 16 for driving the feeding block 8 to flip and control the feeding. The feeding block 8 is rotatably mounted on the feeding box 7 via the first connecting shaft 11. The transmission gear 16 is meshed with the push tooth plate 17. The transmission gear 16 is rotatably mounted inside the protective shell 4 via the worm gear 15. The worm gear 15 is meshed with the worm wheel 14. The worm wheel 14 is fixedly connected to the second connecting shaft 13. The second connecting shaft 13 is rotatably mounted inside the protective shell 4. The second connecting shaft 13 is rotatably connected to one end of the first connecting shaft 11 via the bevel gear pair 12.

[0044] Furthermore, the steel pipe unloading mechanism also includes a push rod 19 for pushing the seamless steel pipe 5 on the unloading ramp 3 onto the bending table 1. The push rod 19 is fixedly connected to a docking rod 21 via a docking slide plate 20. The unloading table 2 is provided with a sliding groove 26 for adapting to the sliding connection of the docking slide plate 20. A guide seat 27 for guiding the material is provided at the junction of the unloading table 2 and the bending table 1. A limit seat 28 for limiting the unloading is also provided on the bending table 1.

[0045] Furthermore, the steel pipe unloading mechanism also includes a first motor 25 for driving the push rod 19 to move forward. One end of the connecting rod 21 is fixedly connected to a transmission plate 22. The transmission plate 22 is slidably connected to the inside of the unloading platform 2 and threadedly connected to the first lead screw 23. The first lead screw 23 is rotatably installed inside the unloading platform 2. The first lead screw 23 is rotatably connected to the output shaft of the first motor 25 through a synchronous belt 24. The first motor 25 is fixedly installed inside the unloading platform 2.

[0046] Preferably, in this embodiment, each time the electric push rod 18 drives the push tooth plate 17 to complete one reciprocating push movement, the material unloading process on the unloading box 7 can be completed accordingly. The specific operation method is as follows: when the electric push rod 18 drives the push tooth plate 17 to move forward, the worm gear 15 can be driven to rotate under the meshing connection between the transmission gear 16 and the push tooth plate 17, and the second connecting shaft 13 can be driven to rotate under the meshing connection between the worm gear 15 and the worm wheel 14. Then, under the meshing connection between the bevel gear pair 12, the material-pushing block 8 on the first connecting shaft 11 is driven to rotate towards the unloading inclined surface 3. At this time, it is convenient to flip the seamless steel pipe 5 at the material-pushing groove 9 on the material-pushing block 8 into the lower part for unloading. When the electric push rod 18 drives the push tooth plate 17 to reset and retract, the material-pushing block 8 on the first connecting shaft 11 can be driven to rotate in the opposite direction under the meshing connection, so that the next seamless steel pipe 5 can fall into the material-pushing groove 9 on the material-pushing block 8 for receiving and placement, thereby facilitating the next unloading process.

[0047] When the seamless steel pipe 5 is fed to the area near the sliding groove 26, the bending and feeding on the bending table 1 is completed. The output shaft of the first motor 25 is driven, and under the synchronous drive of the synchronous belt 24, the first lead screw 23 is driven to rotate. Thus, under the threaded connection between the first lead screw 23 and the transmission plate 22, the docking rod 21 is driven to push the push rod 19 to push the seamless steel pipe 5 on one side for feeding. Under the guidance of the guide seat 27 and the limiting seat 28, the feeding of the seamless steel pipe 5 on the bending table 1 is completed without manual intervention, which significantly improves the efficiency of bending and feeding of steel pipes and bending processing.

[0048] It should be noted that the output shaft of the first motor 25 can be driven in both forward and reverse directions within a certain range, and a sensor can be set on the side of the sliding groove 26. Whenever the seamless steel pipe 5 on the feeding box 7 completes one feeding process, it indicates that the seamless steel pipe 5 on the bending table 1 has been bent and the corresponding feeding is completed. A lifting mechanism can be set on the bending table 1 to facilitate the ejection of the bent seamless steel pipe 5 for feeding.

[0049] This seamless linkage between bending, unloading, and loading effectively eliminates processing interruptions, significantly improving overall processing efficiency. It also enables automatic unloading of materials from the unloading box, effectively controlling the amount unloaded at a time, preventing material accumulation, and improving unloading standardization. Furthermore, it allows for automatic loading of seamless steel pipes onto the bending table, ensuring smooth operation, reducing human error, and thus significantly improving the processing efficiency of steel pipe bending.

[0050] It should be noted that the components in this application are all general standard parts or parts known to those skilled in the art, which effectively solve the technical problems raised in the background art.

[0051] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A seamless steel pipe bending device for building construction, comprising a bending table (1) and a feeding table (2), characterized in that, The unloading platform (2) is inclined with an unloading ramp (3), and an unloading box (7) for unloading is provided above one side of the unloading ramp (3). The unloading box (7) is filled with several seamless steel pipes (5) of a fixed length, and an unloading plate (6) is provided at one edge of the unloading box (7). It also includes: A steel pipe bending mechanism is installed on a bending table (1) for bending seamless steel pipes (5) into U-shapes. The steel pipe bending mechanism includes a first bending member (29) and a second bending member (32) for bending drive. The first bending member (29) and the second bending member (32) are connected in opposite rotation. A pusher frame (36) for driving their rotation is also connected to the first bending member (29) and the second bending member (32). One side of the first bending member (29) and the second bending member (32) A bending limiter (39) for bending limit is also provided. The bending limiter (39) is movably installed on the bending table (1). The steel pipe bending mechanism also includes a first gear (31) and a second gear (34) for driving the first bending member (29) and the second bending member (32) to rotate in opposite directions. The first bending member (29) is fixedly installed on the first hollow drum (30), and the second bending member (32) is fixedly installed on the second hollow drum (33). The first hollow drum (30) rotates. The first gear (31) is fixedly mounted on the outside of the second hollow rotating drum (30), and the second gear (34) is fixedly mounted on the second hollow rotating drum (33) via the third connecting shaft (35). The first gear (31) is fixedly mounted on the first hollow rotating drum (30), and the second gear (34) is fixedly mounted on the second hollow rotating drum (33). The first gear (31) and the second gear (34) rotate up and down without interfering with each other. The steel pipe bending mechanism also includes an electric motor for driving the first gear (31) and the second gear (34) to rotate. The push rod (18) has an upper tooth (38) that meshes with the first gear (31) on the inner side of the push frame (36), and a lower tooth (37) that meshes with the second gear (34) on the other inner side of the push frame (36). The push frame (36) is square and is slidably connected to the inside of the bending table (1). The push frame (36) is fixedly connected to the piston rod of the electric push rod (18) through the push tooth plate (17), and the electric push rod (18) is fixedly installed inside the bending table (1). The steel pipe unloading mechanism is installed on the unloading platform (2) and is synchronously driven by the steel pipe bending mechanism. It is used to unload and push seamless steel pipes (5) on the unloading box (7) one by one. The steel pipe unloading mechanism includes a feeding block (8) for unloading seamless steel pipes (5) one by one from the unloading box (7). The feeding block (8) is provided with a feeding groove (9) for receiving and placing a single seamless steel pipe (5). The feeding block (8) is also provided with a feeding protrusion (10) for feeding. The steel pipe unloading mechanism also includes a transmission gear (16) for driving the feeding block (8) to flip and control the feeding. The feeding block (8) rotates through the first connecting shaft (11). The transmission gear (16) is meshed with the push gear plate (17) and is rotatably mounted in the protective shell (4) via the worm (15). The worm (15) is meshed with the worm wheel (14) and the worm wheel (14) is fixedly connected to the second connecting shaft (13). The second connecting shaft (13) is rotatably mounted inside the protective shell (4). The second connecting shaft (13) is rotatably connected to one end of the first connecting shaft (11) via the bevel gear pair (12). The steel pipe feeding mechanism also includes a push rod (19) for feeding seamless steel pipes (5) on the feeding inclined plane (3) onto the bending table (1).

2. The seamless steel pipe bending equipment for building construction according to claim 1, characterized in that, The steel pipe bending mechanism also includes a second motor (42) for driving the bending limiting member (39) to adjust its radial position. The bending limiting member (39) is slidably connected to the inside of the moving seat (43) by a slider (40). The slider (40) is threadedly connected to the second lead screw (41), and the second lead screw (41) is rotatably connected to the moving seat (43). The second lead screw (41) is fixedly connected to the output shaft of the second motor (42), and the second motor (42) is fixedly installed on one side of the moving seat (43).

3. The seamless steel pipe bending equipment for building construction according to claim 2, characterized in that, The steel pipe bending mechanism also includes a third motor (46) for driving the bending limit member (39) to make lateral adjustments. The movable seat (43) is slidably connected to the inside of the bending table (1) through the guide rod (44), and the guide rod (44) is fixedly installed inside the bending table (1) through the fixing plate (47). The movable seat (43) is threadedly connected to the double-acting screw (45), the double-acting screw (45) is rotatably connected to the fixing plate (47), and the double-acting screw (45) is fixedly connected to the output shaft of the third motor (46). The third motor (46) is fixedly installed on one side of the fixing plate (47).

4. The seamless steel pipe bending equipment for building construction according to claim 1, characterized in that, The push rod (19) is fixedly connected to the docking rod (21) via the docking slide plate (20). The unloading platform (2) is provided with a sliding groove (26) for adapting to the sliding connection of the docking slide plate (20). A guide seat (27) for guiding materials is provided at the junction of the unloading platform (2) and the bending platform (1). A limit seat (28) for limiting the loading is also provided on the bending platform (1).

5. The seamless steel pipe bending equipment for building construction according to claim 4, characterized in that, The steel pipe unloading mechanism also includes a first motor (25) for driving the push rod (19) to move. One end of the connecting rod (21) is fixedly connected to a transmission plate (22). The transmission plate (22) is slidably connected to the inside of the unloading platform (2), and the transmission plate (22) is threadedly connected to the first lead screw (23). The first lead screw (23) is rotatably installed inside the unloading platform (2). The first lead screw (23) is rotatably connected to the output shaft of the first motor (25) through a synchronous belt (24). The first motor (25) is fixedly installed inside the unloading platform (2).

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