A steel pipe flaring apparatus

Abstract

The embodiment of the utility model provides a kind of steel pipe flaring equipment, relate to steel pipe production and processing technical field.Steel pipe flaring equipment includes heating device, flaring device and turnover device, heating device is used to heat the pipe end of steel pipe;Flaring device is spaced apart with heating device, and flaring device is used to carry out flaring to the pipe end of steel pipe;Turnover device is set between heating device and flaring device, and turnover device is used to overturn the steel pipe on heating device to flaring device.By setting turnover device between heating device and flaring device, steel pipe is transported by overturning, can shorten the transport path between pipe end heating to flaring process of steel pipe, reduce production cost, and improve production efficiency.

Description

Technical Field

[0001] This utility model relates to the field of steel pipe production and processing technology, and more specifically, to a steel pipe flaring device. Background Technology

[0002] Due to their excellent performance, large-diameter seamless steel pipes have broad application prospects in fields such as oil and gas pipelines, building structural pipes, pressure vessels, and military pipelines. They have become an important direction for the future development of the seamless steel pipe industry, and their market demand is showing a continuous growth trend.

[0003] In the production and processing of seamless steel pipes, pipe end heating and subsequent flaring are key technological steps. However, existing production processes have certain limitations, mainly in that the process from heating to flaring requires multiple stages of conveying equipment. This process not only increases equipment investment but also significantly affects overall production efficiency. Utility Model Content

[0004] The purpose of this invention is to provide a steel pipe flaring device that can reduce production costs and improve production efficiency.

[0005] The embodiments of this utility model are implemented as follows: An embodiment of this utility model provides a steel pipe flaring device, comprising: A heating device for heating the ends of a steel pipe; A flaring device, wherein the flaring device is spaced apart from the heating device, and the flaring device is used to flare the end of the steel pipe; and A flipping device is provided between the heating device and the flaring device, and the flipping device is used to flip the steel pipe on the heating device onto the flaring device.

[0006] In an optional embodiment, the flipping device includes a rotating shaft and a flipping component, the rotating shaft being disposed between the heating device and the flaring device, and the flipping component being disposed on the rotating shaft.

[0007] In an optional embodiment, the flipping component includes a plurality of flipping blades, all of which are disposed on the rotating shaft and spaced apart around the axis of the rotating shaft; The rotating blades are provided with arc-shaped surfaces on both sides, which are used for the steel pipe to roll.

[0008] In an optional embodiment, the number of the flipping components is multiple, and the multiple flipping components are spaced apart along the axial direction of the rotating shaft.

[0009] In an optional embodiment, the heating device includes an electromagnetic heating unit and a plurality of first conveying rollers, the plurality of first conveying rollers and the electromagnetic heating unit being arranged sequentially at intervals along a first direction; the flaring device is arranged at intervals with the plurality of first conveying rollers along a second direction. The plurality of first conveying rollers are used to convey the pipe end of the steel pipe to the electromagnetic heating unit, and the electromagnetic heating unit is used to heat the pipe end of the steel pipe; the first direction and the second direction form an angle.

[0010] In an optional embodiment, the heating device further includes a plurality of rotating units, which are spaced apart along the first direction and correspond one-to-one with the plurality of first conveying rollers; the rotating units are used to drive the steel pipe to rotate.

[0011] In an optional embodiment, the flaring device includes a flaring mechanism, a first driving member, and a plurality of second conveying rollers. The plurality of second conveying rollers and the flaring mechanism are arranged sequentially at intervals along a first direction. The first driving member is connected to the flaring mechanism, and the heating device is arranged at intervals with the plurality of second conveying rollers along a second direction. The plurality of second conveying rollers are used to convey the pipe end of the steel pipe to the flaring mechanism, and the first driving member is used to drive the flaring mechanism to move toward the plurality of second conveying rollers; the first direction forms an angle with the second direction.

[0012] In an optional embodiment, the flaring device further includes a clamping mechanism, which includes a fixed frame, a first clamping member, a second clamping member, and a second driving member. The fixed frame is disposed between the plurality of second conveying rollers and the flaring mechanism. The first clamping member is disposed on the fixed frame. The second clamping member is spaced apart from the first clamping member along a third direction. The second driving member is disposed on the fixed frame and connected to the second clamping member, for driving the second clamping member to move toward the first clamping member. The plurality of second conveying rollers are used to convey the pipe end of the steel pipe to the space between the first clamping member and the second clamping member, wherein the first direction, the second direction and the third direction are perpendicular to each other.

[0013] In an optional embodiment, the flaring mechanism includes a sliding rod, a sliding frame, a rotating disk, a third driving member, and a plurality of flaring heads. The sliding frame is slidably disposed on the sliding rod, and the rotating disk is rotatably disposed on the sliding frame. The third driving member is disposed on the sliding frame and is connected to the rotating disk in a transmission manner, for driving the rotating disk to rotate relative to the sliding frame. The plurality of expansion joints are spaced apart on the rotating disk and located on the side of the rotating disk close to the plurality of second conveying rollers; the first driving member is connected to the sliding frame and is used to drive the sliding frame to move relative to the sliding rod.

[0014] In an optional embodiment, the number of heating devices is multiple, the multiple heating devices are arranged at intervals, and the flipping device is provided between each pair of adjacent heating devices; and / or, The number of the flaring devices is multiple, and the multiple flaring devices are arranged at intervals, with the flipping device provided between each pair of adjacent flaring devices.

[0015] The beneficial effects of this utility model embodiment include: The steel pipe flaring equipment includes a heating device, a flaring device, and a turning device. The heating device heats the ends of the steel pipe. The flaring device is spaced apart from the heating device and is used to flare the ends of the steel pipe. The turning device is located between the heating device and the flaring device and is used to turn the steel pipe from the heating device onto the flaring device. In essence, this steel pipe flaring equipment achieves the turning and transporting of the steel pipe by setting up a turning device between the heating device and the flaring device. Compared with existing multi-stage conveying devices, this reduces the investment in conveying equipment and shortens the transportation path of the steel pipe from end heating to the flaring process, thereby reducing production costs and improving production efficiency. Attached Figure Description

[0016] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 A schematic diagram of the structure of the steel pipe flaring device provided in this embodiment of the utility model; Figure 2 A schematic diagram of the structure of the flipping device provided in the embodiment of this utility model; Figure 3 This is a schematic diagram of the flaring device provided in an embodiment of the present utility model; Figure 4 for Figure 1 A magnified view of a portion of point A in the middle.

[0018] Icons: 100-Steel pipe flaring equipment; 10-Heating device; 11-Electromagnetic heating unit; 111-Heating hole; 12-First conveying roller; 13-Rotating unit; 20-Flaming device; 21-Flaming mechanism; 211-Sliding rod; 212-Sliding frame; 213-Rotating disk; 214-Third driving component; 215-Flaming head; 216-Fixed gear; 22-First driving component; 23-Second conveying roller; 24-Clamping mechanism; 241-Fixed frame; 2411-Slide rail; 242-First clamping component; 243-Second clamping component; 244-Second driving component; 25-Fixed seat; 30-Tilting device; 31-Rotating shaft; 32-Tilting component; 321-Tilting blade; 3211-Arc-shaped surface; 200-Steel pipe. Detailed Implementation

[0019] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0020] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0021] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0022] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this utility model is in use. They are only for the convenience of describing this utility model 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 utility model. In addition, the terms "first," "second," and "third," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0023] Furthermore, terms such as "horizontal" and "vertical" do not imply that components must be absolutely horizontal or suspended, but rather that they can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal than "vertical," and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0024] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0025] As described in the background section, pipe end heating and subsequent flaring are key processes in the production of seamless steel pipes. However, existing production processes have certain limitations, mainly because the heating and flaring processes require multiple stages of conveying equipment, which increases equipment investment and reduces overall production efficiency.

[0026] Based on this, please refer to Figures 1-4 The present invention provides a steel pipe flaring device 100, which can effectively improve the above-mentioned technical problems, that is, it can reduce the production cost of steel pipe 200 and improve production efficiency.

[0027] It should be noted that the first direction mentioned below refers to... Figure 1 The X direction is shown in the figure, and the second direction is... Figure 1 The Y direction shown in the figure, the third direction is Figure 1 The Z direction is shown in the figure. The following will provide a detailed description of the steel pipe flaring device 100.

[0028] Please refer to Figure 1 , Figure 1 This is a structural schematic diagram of the steel pipe flaring device 100 provided in this embodiment, combined with... Figure 1 The steel pipe flaring device 100 includes a heating device 10, a flaring device 20, and a flipping device 30. The heating device 10 is used to heat the end of the steel pipe 200. The flaring device 20 is arranged at an interval from the heating device 10 and is used to flare the end of the steel pipe 200. The flipping device 30 is arranged between the heating device 10 and the flaring device 20 and is used to flip the steel pipe 200 on the heating device 10 onto the flaring device 20.

[0029] As is easily understood, the steel pipe flaring equipment 100 achieves the flipping and transporting of the steel pipe 200 by setting a flipping device 30 between the heating device 10 and the flaring device 20. Compared with the existing multi-stage conveying device, it can reduce the investment in conveying equipment and shorten the transportation path of the steel pipe 200 from the pipe end heating to the flaring process, thereby reducing production costs and improving production efficiency.

[0030] Furthermore, in this embodiment, there are multiple heating devices 10, which are spaced apart, and a flipping device 30 is provided between each pair of adjacent heating devices 10. By providing multiple heating devices 10, the ends of multiple steel pipes 200 can be heated simultaneously. At the same time, the flipping device 30 between adjacent heating devices 10 facilitates the rapid transfer of multiple steel pipes 200 to the flaring device 20 for subsequent flaring processing, further improving production efficiency and reducing costs.

[0031] Similarly, in order to improve production efficiency and enable the simultaneous flaring of multiple steel pipes 200, the number of flaring devices 20 can also be multiple, with multiple flaring devices 20 spaced apart, and a flipping device 30 is provided between each two adjacent flaring devices 20.

[0032] It should be noted that in this embodiment, there are two heating devices 10 and two flaring devices 20, and a flipping device 30 is provided between adjacent heating devices 10 and flaring devices 20. Of course, in other embodiments, the number of heating devices 10 and flaring devices 20 can be one, three, or four, etc., and the specific number needs to be determined according to the actual production design requirements.

[0033] For details, please refer to Figure 2 , Figure 2 This is a schematic diagram of the structure of the flipping device 30 provided in this embodiment, combined with... Figure 1 and Figure 2 The flipping device 30 includes a rotating shaft 31 and a flipping component 32. The rotating shaft 31 is disposed between the heating device 10 and the flaring device 20, and the flipping component 32 is disposed on the rotating shaft 31.

[0034] Understandably, in the actual production and processing process, a drive structure, such as a motor driving the rotating shaft 31 to rotate, can be used to drive the flipping component 32 to rotate, so that the flipping component 32 flips the steel pipe 200 on the heating device 10 and moves it to the flaring device 20.

[0035] Furthermore, the flipping component 32 includes multiple flipping blades 321, all of which are disposed on the rotating shaft 31 and spaced apart around the axis of the rotating shaft 31. Each flipping blade 321 has an arc-shaped surface 3211 on both opposite sides, which is used for the rolling of the steel pipe 200. By providing the arc-shaped surface 3211, the rolling stability of the steel pipe 200 during the flipping process can be improved.

[0036] It should be noted that in this embodiment, there are two flipping blades 321. Driven by the rotating shaft 31, the two flipping blades 321 rotate synchronously, so that the arc-shaped surface 3211 of the flipping blades 321 contacts the steel pipe 200. Then, during the rotation, the steel pipe 200 will roll from the arc-shaped surface 3211 of one flipping blade 321 to the arc-shaped surface 3211 of the other flipping blade 321, and finally roll onto the flaring device 20. Of course, in other embodiments, the number of flipping blades 321 can also be three or four, etc.

[0037] To further improve the stability of the steel pipe 200 during the flipping process, multiple flipping components 32 are provided, spaced apart along the axial direction of the rotating shaft 31. For example, in this embodiment, there are two flipping components 32. Of course, in other embodiments, the number of flipping components 32 can be one, three, or four, etc.

[0038] Please continue to combine Figure 1 The heating device 10 includes an electromagnetic heating unit 11 and a plurality of first conveying rollers 12, which are arranged sequentially and at intervals along a first direction; the flaring device 20 and the plurality of first conveying rollers 12 are arranged at intervals along a second direction. The plurality of first conveying rollers 12 are used to convey the pipe ends of the steel pipe 200 to the electromagnetic heating unit 11, which heats the pipe ends of the steel pipe 200; the first direction and the second direction form an angle.

[0039] It should be noted that the first direction can also be understood as the extension direction or axial direction of the steel pipe 200 or the rotating shaft 31. That is, the multiple first conveying rollers 12 can move the end of the steel pipe 200 to the electromagnetic heating unit 11 along the axial direction of the steel pipe 200. Specifically, the electromagnetic heating unit 11 is provided with heating holes 111, and the end of the steel pipe 200 extends into the heating holes 111 for heating under the action of the first conveying rollers 12.

[0040] Furthermore, the heating device 10 also includes multiple rotating units 13, which are spaced apart along a first direction and correspond one-to-one with multiple first conveying rollers 12; the rotating units 13 are used to drive the steel pipe 200 to rotate. It can be understood that during the heating process, driving the steel pipe 200 to rotate simultaneously through the rotating units 13 can improve the uniformity of heating at the pipe end, thereby improving the processing quality of the steel pipe 200.

[0041] Specifically, the rotating unit 13 includes a first rotating wheel and a second rotating wheel, which are spaced apart along a second direction. It should be noted that one of the first and second rotating wheels can be a driving wheel and the other a driven wheel; in the actual heating process, the steel pipe 200 is simultaneously mounted on both the first and second rotating wheels. The motor can drive the driving wheel to rotate, thereby causing the steel pipe 200 and the driven wheel to rotate, ensuring the stability of the steel pipe 200's rotation.

[0042] It should be noted that after the multiple first conveying rollers 12 convey the end of the steel pipe 200 to the heating hole 111 of the electromagnetic heating unit 11 for heating, a backward movement is required. That is, the multiple first conveying rollers 12 move the steel pipe 200 away from the heating hole 111, so that the end of the steel pipe 200 is withdrawn from the heating hole 111. Then, the flipping device 30 is used to perform a subsequent flipping operation on the steel pipe 200.

[0043] Please refer to Figure 3 , Figure 3 This is a schematic diagram of the flaring device 20 provided in this embodiment, combined with... Figure 1 and Figure 3 The flaring device 20 includes a flaring mechanism 21, a first driving member 22, and a plurality of second conveying rollers 23. The plurality of second conveying rollers 23 and the flaring mechanism 21 are arranged sequentially at intervals along a first direction. The first driving member 22 is connected to the flaring mechanism 21. The heating device 10 and the plurality of second conveying rollers 23 are arranged at intervals along a second direction. Specifically, in this embodiment, the plurality of first conveying rollers 12 and the plurality of second conveying rollers 23 are arranged at intervals along the second direction. The plurality of second conveying rollers 23 are used to convey the pipe end of the steel pipe 200 to the flaring mechanism 21, and the first driving member 22 is used to drive the flaring mechanism 21 to move toward the plurality of second conveying rollers 23.

[0044] In other words, during the flaring operation, the second conveying roller 23 conveys the end of the steel pipe 200 to the flaring mechanism 21, and then the first driving member 22 drives the flaring mechanism 21 to move toward the end of the steel pipe 200. After contacting the end of the pipe, it continues to move, thereby gradually expanding the diameter of the end of the pipe.

[0045] It should be noted that in this embodiment, the first driving component 22 is specifically a hydraulic cylinder. Of course, in other embodiments, the first driving component 22 may also be a pneumatic cylinder or an electric push rod or other driving structures.

[0046] Furthermore, in order to improve the stability of the steel pipe 200 during the flaring process, the flaring device 20 also includes a clamping mechanism 24, which is disposed between the plurality of second conveying rollers 23 and the flaring mechanism 21.

[0047] For details, please refer to Figure 4 , Figure 4 for Figure 1 A magnified view of a section at point A, combined with Figure 1 , Figure 3 and Figure 4 The clamping mechanism 24 includes a fixed frame 241, a first clamping member 242, a second clamping member 243, and a second driving member 244. The fixed frame 241 is disposed between a plurality of second conveying rollers 23 and the flaring mechanism 21. The first clamping member 242 is disposed on the fixed frame 241. The second clamping member 243 is spaced apart from the first clamping member 242 along a third direction. The second driving member 244 is disposed on the fixed frame 241 and connected to the second clamping member 243, and is used to drive the second clamping member 243 to move toward the first clamping member 242. The plurality of second conveying rollers 23 are used to convey the pipe end of the steel pipe 200 between the first clamping member 242 and the second clamping member 243, with the first direction, second direction, and third direction being perpendicular to each other.

[0048] It should be noted that the first clamping member 242 can be understood as the lower clamping member, which is fixedly mounted on the fixed frame 241, while the second clamping member 243 can be understood as the upper clamping member, which can move relative to the first clamping member 242 under the action of the second driving member 244, thereby achieving the clamping or releasing of the steel pipe 200 end. In addition, in this embodiment, the second driving member 244 is specifically a hydraulic cylinder. Of course, in other embodiments, the second driving member 244 can also be a pneumatic cylinder or an electric push rod, or other driving structures.

[0049] To improve the smoothness of movement of the first clamping member 242 and thus enhance the clamping stability of the steel pipe 200, the first clamping member 242 is slidably connected to the fixed frame 241. Specifically, in this embodiment, the fixed frame 241 has an installation space in the middle, and slide rails 2411 are provided on both sides of the installation space; the first clamping member 242 is fixed to the bottom of the installation space, and the second clamping member 243 is slidably connected to the slide rails 2411 and located within the installation space.

[0050] Please continue to combine Figure 3The flaring mechanism 21 includes a sliding rod 211, a sliding frame 212, a rotating disk 213, a third driving member 214, and multiple flaring nozzles 215. The sliding frame 212 is slidably disposed on the sliding rod 211, and the rotating disk 213 is rotatably disposed on the sliding frame 212. The third driving member 214 is disposed on the sliding frame 212 and is connected to the rotating disk 213 for driving the rotating disk 213 to rotate relative to the sliding frame 212. The multiple flaring nozzles 215 are spaced apart on the rotating disk 213 and located on the side of the rotating disk 213 close to the multiple second conveying rollers 23. The first driving member 22 is connected to the sliding frame 212 for driving the sliding frame 212 to move relative to the sliding rod 211.

[0051] As is easily understood, the outer diameters of multiple flaring nozzles 215 can be different, thus enabling the pipe ends of the steel pipe 200 to be flared to different diameters according to requirements, improving the adaptability and versatility of the flaring equipment and further enhancing production efficiency. The third driving component 214 drives the rotating disk 213 to rotate relative to the sliding frame 212, thereby selectively switching between flaring nozzles 215 with different outer diameters. Thus, once the outer diameter of the flaring nozzle 215 is determined, the first driving component 22 drives the sliding frame 212 to move on the sliding rod 211, causing the rotating disk 213 and the flaring nozzle 215 to move as a whole towards the fixed frame 241, thereby flaring the pipe end clamped on the first clamping component 242 and the second clamping component 243.

[0052] To facilitate the rotation of the rotating disk 213 driven by the third driving member 214, the flaring mechanism 21 also includes a fixed gear 216. The fixed gear 216 is located on the side of the rotating disk 213 away from the flaring opening 215, and the third driving member 214 is connected to the fixed gear 216 in a transmission manner. Specifically, in this embodiment, the third driving member 214 is a motor, and the driving end of the motor is provided with a driving gear. The driving gear meshes with the fixed gear 216 to achieve power transmission.

[0053] Furthermore, in order to facilitate the installation of the first driving member 22, the flaring device 20 also includes a fixed base 25, which is spaced apart from the fixed frame 241. The two ends of the sliding rod 211 are connected to the fixed base 25 and the fixed frame 241 respectively, and the first driving member 22 is disposed on the fixed base 25.

[0054] In addition, in order to improve the moving stability of the sliding frame 212 and improve the flaring quality of the steel pipe 200, in this embodiment, there are two sliding rods 211, which are spaced apart. The sliding frame 212 is slidably connected to the two sliding rods 211 at the same time, and the first driving member 22 is located between the two sliding rods 211.

[0055] It should also be noted that after the multiple second conveying rollers 23 convey the pipe end of the steel pipe 200 to the clamping mechanism 24 for clamping, and then the pipe end is widened by the widening mechanism 21, a retraction action is also required; that is, the multiple second conveying rollers 23 move the steel pipe 200 away from the clamping mechanism 24, so that the pipe end of the steel pipe 200 is separated from the widening head 215 and retracted from the clamping mechanism 24, and then the steel pipe 200 is subsequently flipped by the flipping device 30.

[0056] In summary, the embodiments of this utility model provide a steel pipe flaring device 100, which includes a heating device 10, a flaring device 20, and a turning device 30. The heating device 10 is used to heat the end of the steel pipe 200; the flaring device 20 is spaced apart from the heating device 10 and is used to flare the end of the steel pipe 200; the turning device 30 is disposed between the heating device 10 and the flaring device 20 and is used to turn the steel pipe 200 on the heating device 10 onto the flaring device 20. By setting the turning device 30 between the heating device 10 and the flaring device 20, the steel pipe 200 can be flared and transported. Compared with existing multi-stage conveying devices, this reduces the investment in conveying equipment and shortens the transportation path of the steel pipe 200 from the end heating to the flaring process, thereby reducing production costs and improving production efficiency.

[0057] The above description is merely a specific embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A steel pipe flaring device, characterized in that, include: Heating device (10) is used to heat the end of the steel pipe (200); A flaring device (20) is provided at an interval from the heating device (10), and the flaring device (20) is used to flare the end of the steel pipe (200); and A flipping device (30) is disposed between the heating device (10) and the flaring device (20), and the flipping device (30) is used to flip the steel pipe (200) on the heating device (10) onto the flaring device (20).

2. The steel pipe flaring equipment according to claim 1, characterized in that, The flipping device (30) includes a rotating shaft (31) and a flipping component (32). The rotating shaft (31) is disposed between the heating device (10) and the flaring device (20), and the flipping component (32) is disposed on the rotating shaft (31).

3. The steel pipe flaring equipment according to claim 2, characterized in that, The flipping component (32) includes a plurality of flipping blades (321), all of which are disposed on the rotating shaft (31) and are spaced apart around the axis of the rotating shaft (31); The flipping blade (321) has an arc-shaped surface (3211) on both sides, and the arc-shaped surface (3211) is used for the steel pipe (200) to roll.

4. The steel pipe flaring equipment according to claim 2, characterized in that, The number of the flipping parts (32) is multiple, and the multiple flipping parts (32) are spaced apart along the axial direction of the rotating shaft (31).

5. The steel pipe flaring equipment according to claim 1, characterized in that, The heating device (10) includes an electromagnetic heating unit (11) and a plurality of first conveying rollers (12), the plurality of first conveying rollers (12) and the electromagnetic heating unit (11) being arranged sequentially at intervals along a first direction; the flaring device (20) and the plurality of first conveying rollers (12) are arranged at intervals along a second direction; The plurality of first conveying rollers (12) are used to convey the pipe end of the steel pipe (200) to the electromagnetic heating unit (11), and the electromagnetic heating unit (11) is used to heat the pipe end of the steel pipe (200); the first direction and the second direction form an angle.

6. The steel pipe flaring equipment according to claim 5, characterized in that, The heating device (10) further includes a plurality of rotating units (13), which are spaced apart along the first direction and correspond one-to-one with the plurality of first conveying rollers (12); the rotating units (13) are used to drive the steel pipe (200) to rotate.

7. The steel pipe flaring equipment according to claim 1, characterized in that, The flaring device (20) includes a flaring mechanism (21), a first driving member (22), and a plurality of second conveying rollers (23). The plurality of second conveying rollers (23) and the flaring mechanism (21) are arranged sequentially at intervals along a first direction. The first driving member (22) is connected to the flaring mechanism (21). The heating device (10) and the plurality of second conveying rollers (23) are arranged at intervals along a second direction. The plurality of second conveying rollers (23) are used to convey the pipe end of the steel pipe (200) to the flaring mechanism (21), and the first driving member (22) is used to drive the flaring mechanism (21) to move toward the plurality of second conveying rollers (23); the first direction is at an angle to the second direction.

8. The steel pipe flaring equipment according to claim 7, characterized in that, The flaring device (20) further includes a clamping mechanism (24), which includes a fixed frame (241), a first clamping member (242), a second clamping member (243), and a second driving member (244). The fixed frame (241) is disposed between the plurality of second conveying rollers (23) and the flaring mechanism (21). The first clamping member (242) is disposed on the fixed frame (241). The second clamping member (243) is spaced apart from the first clamping member (242) along a third direction. The second driving member (244) is disposed on the fixed frame (241) and connected to the second clamping member (243) for driving the second clamping member (243) to move toward the first clamping member (242). The plurality of second conveying rollers (23) are used to convey the pipe end of the steel pipe (200) to the space between the first clamping member (242) and the second clamping member (243), wherein the first direction, the second direction and the third direction are perpendicular to each other.

9. The steel pipe flaring equipment according to claim 7, characterized in that, The flaring mechanism (21) includes a sliding rod (211), a sliding frame (212), a rotating disk (213), a third driving member (214), and a plurality of flaring nozzles (215). The sliding frame (212) is slidably disposed on the sliding rod (211), and the rotating disk (213) is rotatably disposed on the sliding frame (212). The third driving member (214) is disposed on the sliding frame (212) and is connected to the rotating disk (213) for driving the rotating disk (213) to rotate relative to the sliding frame (212). The plurality of expansion joints (215) are spaced apart on the rotating disk (213) and located on the side of the rotating disk (213) close to the plurality of second conveying rollers (23); the first driving member (22) is connected to the sliding frame (212) and is used to drive the sliding frame (212) to move relative to the sliding rod (211).

10. The steel pipe flaring equipment according to claim 1, characterized in that, The number of heating devices (10) is multiple, and the multiple heating devices (10) are arranged at intervals, with the flipping device (30) provided between each adjacent pair of heating devices (10); and / or, The number of the flaring devices (20) is multiple, and the multiple flaring devices (20) are arranged at intervals, and the flipping device (30) is provided between two adjacent flaring devices (20).

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