A steel strand bending device

Abstract

The utility model belongs to the line construction technology field in the electric power engineering, concretely relates to a kind of steel strand bending device, to solve the problem that the steel strand is mainly partial concentrated force in the bending process, leading to the steel wire in steel strand is prone to loose strand or misplacement due to uneven stress.The utility model includes forming structure and setting structure;Forming structure includes setting wheel and bending wheel;Bending wheel is set to the outer circumferential side of setting wheel.The steel strand bending device provided by the utility model revolves around the central axis of setting wheel while rotating around its own axis when in use, to drive the steel strand clamped between the two along the outer circumferential surface of setting wheel to be bent and formed, the setting plug rod moves to setting wheel after steel strand completes bending in this process, to be cooperated with setting wheel and clamped fixed steel strand after bending, to limit the springback of steel strand and maintain its bending shape.

Description

Technical Field

[0001] This utility model belongs to the field of power line construction technology, and specifically relates to a steel strand bending device. Background Technology

[0002] In the construction of overhead transmission lines, in order to improve the structural stability of the power poles, guy wire structures are usually used to anchor the power poles. Because the terrain and layout of the power poles vary greatly, and the tension of the guy wires needs to be kept within a set range, the guy wire structure needs to be customized according to the actual on-site measurement data.

[0003] As the main load-bearing component in the guy wire structure, the steel strand is connected to the pole and ground anchor at both ends through connectors (UT clamps or wedge clamps). During the customized assembly of the guy wire structure, the steel strand needs to be cut to a fixed length and bent at the ends to meet the connection and assembly requirements.

[0004] In existing technologies, bending of steel strands often employs bending tools based on the cooperation of a forming wheel and a bending wheel. By having the bending wheel roll around the outer circumference of the forming wheel, the steel strand is forced to bend and deform between the two. However, because the steel strand is mainly subjected to concentrated local force during the bending process, the stranded steel wires in the steel strand are prone to loosening or misalignment due to uneven force distribution.

[0005] The aforementioned structural damage will severely affect the overall mechanical properties of the steel strands: on the one hand, loose strands prevent the steel strands from achieving "overall stress bearing," with the load borne by only a portion of the wires, which can easily lead to localized stress concentration and increase the risk of single-wire overload fracture; on the other hand, misaligned wires may experience abnormal friction with the anchorage or the inner wall of the corrugated pipe during subsequent tensioning, which not only exacerbates wear but may also cause damage to the corrugated pipe, affecting the density of grouting, thereby weakening the prestress transfer effect and threatening the durability and safety of the structure. Summary of the Invention

[0006] In order to solve the above-mentioned problems in the prior art, namely, that the stranded steel wires in the steel strand are prone to loosening or misalignment due to uneven stress during the bending process, the present invention provides a steel strand bending device.

[0007] The device includes a forming structure and a shaping structure. The forming structure includes a shaping wheel and a bending wheel. The bending wheel is located on the outer periphery of the shaping wheel and is configured to revolve around the central axis of the shaping wheel while rotating around its own axis, thereby bending the steel strand held between the two along the outer periphery of the shaping wheel. The shaping structure includes multiple shaping rods. The shaping rods are configured to move toward the shaping wheel after the steel strand has been bent, so as to cooperate with the shaping wheel to clamp and fix the bent steel strand, thereby limiting the springback of the steel strand and maintaining its bent shape.

[0008] Furthermore, it also includes a follower structure; the shaping structure further includes multiple shaping springs; the shaping springs act on the shaping rod to provide a preload force for the shaping rod to move toward the shaping wheel; the follower structure is configured to move synchronously with the bending wheel, and during the movement, it limits and blocks the shaping rod corresponding to the bending area, and the limitation on the shaping rod is released after the steel strand in the bending area is bent.

[0009] Furthermore, the forming structure also includes a support bracket and a drive shaft; the follower structure includes a first baffle; the bending wheel is rotatably mounted on the first baffle; one end of the drive shaft is rotatably inserted into the support bracket, and the other end is connected to the first baffle to drive the first baffle and the bending wheel to move synchronously; when the steel strand is bent in the bending area, the end of the shaping rod corresponding to the bending area facing the shaping wheel abuts against the first baffle; when the steel strand completes bending in the bending area, as the first baffle rotates, the shaping rod disengages from the first baffle and moves toward the shaping wheel.

[0010] Furthermore, the follower structure also includes a second baffle, a third baffle, a first positioning pin, and a second positioning pin; both the second baffle and the third baffle are rotatably mounted on the drive shaft; both the first baffle and the third baffle have arc-shaped guide holes on their surfaces; one end of the first positioning pin is connected to the second baffle, and the other end is slidably inserted into the arc-shaped guide hole on the first baffle, so that the first baffle drives the second baffle to rotate after rotating by a set angle; one end of the second positioning pin is connected to the second baffle, and the other end is slidably inserted into the arc-shaped guide hole on the third baffle, so that the second baffle drives the third baffle to rotate after rotating by a set angle; before the steel strand is bent, the ends of the plurality of shaping rods facing the shaping wheel respectively abut against the first baffle, the second baffle, and the third baffle.

[0011] Furthermore, the first baffle, the second baffle, and the third baffle each have multiple positioning grooves on the side facing the shaping rod; the end of the shaping rod facing the shaping wheel can be slidably inserted into the positioning groove.

[0012] Furthermore, the shaping structure also includes multiple lifting and bending plates; one end of the shaping rod is slidably inserted into the support bracket, and the other end is connected to the lifting and bending plate; one end of the shaping spring is connected to the support bracket, and the other end is connected to the lifting and bending plate, so as to drive the shaping rod to move towards the shaping wheel.

[0013] Furthermore, the forming structure also includes a telescopic screw; the telescopic screw is inserted into the bearing bracket and threadedly connected to the bearing bracket; one end of the telescopic screw inserted into the bearing bracket is connected to the shaping wheel; before the steel strand is bent, the telescopic screw drives the shaping wheel to move towards the bending wheel to clamp the steel strand between the shaping wheel and the bending wheel; after the steel strand is bent, the telescopic screw drives the shaping wheel away from the bending wheel to provide space for the bent steel strand to release.

[0014] Furthermore, the forming structure also includes a guide rail; one end of the telescopic screw is inserted into the support bracket and rotatably mounted on the shaping wheel; one end of the guide rail is connected to the shaping wheel, and the other end is slidably inserted into the support bracket to restrict the shaping wheel from rotating around its own axis.

[0015] Furthermore, the forming structure also includes two limiting rings; the two limiting rings are respectively fitted onto the shaping wheel and the bending wheel to restrict the steel strand from moving along the axial direction of the shaping wheel during the bending process.

[0016] Furthermore, it also includes a ratchet wrench and a limiting pedal; the formed structure also includes two adapter plugs; the two adapter plugs are respectively connected to the telescopic screw and the end of the drive shaft away from the support bracket, and both can be detachably connected to the drive end of the ratchet wrench; the limiting pedal is installed on the support bracket and is used to restrict the movement of the support bracket when the ratchet wrench is in operation.

[0017] The beneficial effects of this utility model are:

[0018] The device includes a forming structure and a fixing structure; the forming structure includes a fixing wheel and a bending wheel; the bending wheel is located on the outer periphery of the fixing wheel and is configured to revolve around the central axis of the fixing wheel while rotating around its own axis, so as to drive the steel strand clamped between the two to bend and form along the outer periphery of the fixing wheel; the fixing structure includes multiple fixing rods; the fixing rods are configured to move toward the fixing wheel after the steel strand has been bent, so as to cooperate with the fixing wheel to clamp and fix the bent steel strand, thereby limiting the springback of the steel strand and maintaining its bent shape.

[0019] When the steel strand bending device provided by this utility model is in use, the bending wheel revolves around the central axis of the shaping wheel while rotating around its own axis, so as to drive the steel strand held between the two to bend along the outer circumferential surface of the shaping wheel. During this process, the shaping rod moves towards the shaping wheel after the steel strand is bent, so as to cooperate with the shaping wheel to clamp and fix the bent steel strand, thereby limiting the springback of the steel strand and maintaining its bent shape. This solves the problem that the stranded steel wires in the steel strand are prone to loosening or misalignment due to uneven stress during the bending process, since the steel strand is mainly subjected to localized concentrated force. Attached Figure Description

[0020] Other features, objects, and advantages of this application will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings:

[0021] Figure 1 This is a schematic diagram of the steel strand bending device provided in this embodiment of the utility model;

[0022] Figure 2 This is a rear view of the steel strand bending device provided in this embodiment of the utility model;

[0023] Figure 3 This is a schematic diagram of the assembly structure of the forming structure, the shaping structure, and the following structure provided in the embodiments of this utility model;

[0024] Figure 4 This is a front view of the assembly structure of the forming structure, the shaping structure, and the following structure provided in the embodiments of this utility model;

[0025] Figure 5 This is a rear view of the assembly structure of the forming structure, the shaping structure, and the follower structure provided in this embodiment of the utility model;

[0026] Figure 6 This is a top view of the assembly structure of the forming structure, the shaping structure, and the following structure provided in this embodiment of the utility model;

[0027] Figure 7 This is a schematic diagram of the follower structure provided in the embodiment of this utility model;

[0028] Figure 8 This is a three-dimensional exploded view of the follower structure provided in the embodiment of this utility model. Detailed Implementation

[0029] The present application will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for illustrative purposes only and are not intended to limit the invention. Furthermore, it should be noted that, for ease of description, only the parts relevant to the invention are shown in the accompanying drawings.

[0030] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. This application will now be described in detail with reference to the accompanying drawings and embodiments.

[0031] This utility model provides a steel strand bending device:

[0032] The system includes a forming structure 100 and a shaping structure 200. The forming structure 100 includes a shaping wheel 110 and a bending wheel 120. The bending wheel 120 is disposed on the outer periphery of the shaping wheel 110 and is configured to revolve around the central axis of the shaping wheel 110 while rotating around its own axis, so as to drive the steel strand clamped between the two to bend and form along the outer periphery of the shaping wheel 110. The shaping structure 200 includes a plurality of shaping inserts 210. The shaping inserts 210 are configured to move toward the shaping wheel 110 after the steel strand has been bent, so as to cooperate with the shaping wheel 110 to clamp and fix the bent steel strand, thereby limiting the springback of the steel strand and maintaining its bent shape.

[0033] In this embodiment, the steel strand is first placed between the shaping wheel 110 and the bending wheel 120. Then, the bending wheel 120 is driven to revolve around the central axis of the shaping wheel 110. During this process, under the action of friction, the steel strand drives the bending wheel 120 to rotate around its own axis, so as to drive the steel strand held between the two to bend along the outer peripheral surface of the shaping wheel 110. After the bending of a part of the steel strand is completed, the shaping rod 210 corresponding to that part moves toward the shaping wheel 110. After the shaping rod 210 contacts the bent part of the steel strand, it works with the shaping wheel 110 to form a clamping structure that clamps and fixes the steel strand. Multiple clamping structures cooperate with each other to limit the springback of the steel strand and maintain its bent shape, thereby improving the uniformity of the force on the steel strand during the bending process, thus avoiding the strands in the steel strand from becoming loose or misaligned due to uneven force.

[0034] In order to control the movement of multiple shaping rods 210 sequentially toward the shaping wheel 110 according to the bending condition of the steel strand:

[0035] like Figures 3-6 As shown, it also includes a follower structure 300; the shaping structure 200 also includes multiple shaping springs 220; the shaping springs 220 act on the shaping insert 210 to provide a preload force for the shaping insert 210 to move toward the shaping wheel 110; the follower structure 300 is configured to move synchronously with the bending wheel 120, and during the movement, it limits and blocks the shaping insert 210 corresponding to the bending area. After the steel strand in the bending area is bent, the limitation on the shaping insert 210 is released.

[0036] In this embodiment, the follower structure 300 is set to move synchronously with the bending wheel 120, and during the movement, the shaping rod 210 corresponding to the bending area is limited and blocked. After the steel strand in the bending area is bent, the limitation on the shaping rod 210 is released. After the limitation is released, the shaping rod 210 moves towards the shaping wheel 110 under the drive of the shaping spring 220.

[0037] The shape and structure of the follower structure 300 are as follows:

[0038] like Figures 7-8 As shown, the forming structure 100 also includes a support bracket 130 and a drive shaft 140; the follower structure 300 includes a first baffle 310; the bending wheel 120 is rotatably mounted on the first baffle 310; one end of the drive shaft 140 is rotatably inserted into the support bracket 130, and the other end is connected to the first baffle 310 to drive the first baffle 310 and the bending wheel 120 to move synchronously; when the steel strand is bent in the bending area, the end of the shaping rod 210 corresponding to the bending area facing the shaping wheel 110 abuts against the first baffle 310; when the steel strand is bent in the bending area, as the first baffle 310 rotates, the shaping rod 210 disengages from the first baffle 310 and moves toward the shaping wheel 110.

[0039] In this embodiment, the bending wheel 120 is rotatably mounted on the first baffle 310 so that the drive shaft 140 can drive the bending wheel 120 and the first baffle 310 to move synchronously. When the steel strand is bent in the bending area, the end of the shaping rod 210 corresponding to the bending area facing the shaping wheel 110 abuts against the first baffle 310 so that the shaping rod 210 is in a limited state. When the steel strand is bent in the bending area, the first baffle 310 moves synchronously with the bending wheel 120, and the shaping rod 210 corresponding to the bending area disengages from the first baffle 310. Then, the shaping rod 210 moves toward the shaping wheel 110 under the drive of the shaping spring 220.

[0040] To increase the shaping area of ​​the steel strand bent and formed on the outer peripheral surface of the shaping wheel 110:

[0041] like Figures 7-8As shown, the follower structure 300 also includes a second baffle 320, a third baffle 330, a first positioning pin 340, and a second positioning pin 350; both the second baffle 320 and the third baffle 330 are rotatably mounted on the drive shaft 140; both the first baffle 310 and the third baffle 330 have arc-shaped guide holes on their surfaces; one end of the first positioning pin 340 is connected to the second baffle 320, and the other end is slidably inserted into the arc-shaped guide hole on the first baffle 310, so that the first baffle 350... After the plate 310 rotates to a set angle, it drives the second baffle 320 to rotate. One end of the second positioning pin 350 is connected to the second baffle 320, and the other end is slidably inserted into the arc-shaped guide hole on the third baffle 330, so that the second baffle 320 drives the third baffle 330 to rotate after rotating to a set angle. Before the steel strand is bent, the ends of the multiple shaping rods 210 facing the shaping wheel 110 respectively abut against the first baffle 310, the second baffle 320 and the third baffle 330.

[0042] In this embodiment, before the steel strand is bent, one end of each of the multiple shaping rods 210 facing the shaping wheel 110 abuts against the first baffle 310, the second baffle 320, and the third baffle 330, respectively, so that the multiple shaping rods 210 are all in a limited position. When the steel strand is bent, the drive shaft 140 drives the first baffle 310 to rotate. During this process, the first positioning pin 340 moves along the arc-shaped guide hole on the first baffle 310. After the first positioning pin 340 moves to one end of the arc-shaped guide hole on the first baffle 310, the first baffle 310 drives the second baffle 320 through the first positioning pin 340. When plate 320 rotates, the second baffle 320 drives the second positioning pin 350 to move along the arc-shaped guide hole on the third baffle 330. After the second positioning pin 350 moves to one end of the arc-shaped guide hole on the third baffle 330, the second baffle 320 drives the third baffle 330 to rotate through the second positioning pin 350, so that the first baffle 310, the second baffle 320 and the third baffle 330 are stacked and contracted in sequence. During this process, multiple shaping rods 210 are released in sequence and move toward the shaping wheel 110, thereby increasing the shaping area of ​​the steel strand bent and formed on the outer peripheral surface of the shaping wheel 110.

[0043] In order for the follower structure 300 to automatically reset:

[0044] like Figures 7-8 As shown, the first baffle 310, the second baffle 320 and the third baffle 330 are each provided with a plurality of positioning grooves on the side facing the shaping rod 210; the end of the shaping rod 210 facing the shaping wheel 110 can be slidably inserted into the positioning groove.

[0045] In this embodiment, before and during the bending of the steel strand, the shaping rod 210 is slidably inserted into the positioning groove at one end facing the shaping wheel 110 to apply locking stress to the first baffle 310, the second baffle 320 and the third baffle 330, thereby preventing the second baffle 320 and the third baffle 330 from rotating uncontrollably, and thus preventing the shaping rod 210 from being released uncontrollably.

[0046] To facilitate the movement of the shaping rod 210 during the reset process:

[0047] like Figures 3-6 As shown, the shaping structure 200 also includes multiple lifting bending plates 230; one end of the shaping rod 210 is slidably inserted into the bearing bracket 130, and the other end is connected to the lifting bending plate 230; one end of the shaping spring 220 is connected to the bearing bracket 130, and the other end is connected to the lifting bending plate 230, so as to drive the shaping rod 210 to move towards the shaping wheel 110.

[0048] In this embodiment, when the device needs to be reset, a lifting plate 230 is provided at the end of the shaping rod 210 away from the support bracket 130, so that the operator can easily grasp the shaping rod 210 and move the shaping rod 210 away from the shaping wheel 110. During the movement of the shaping rod 210, the lifting plate 230, with the cooperation of the support bracket 130, drives the shaping spring 220 to stretch and elastically deform. The elastically deformed shaping spring 220 provides a preload force for the shaping rod 210 to move towards the shaping wheel 110.

[0049] To facilitate the laying of the steel strand between the shaping wheel 110 and the bending wheel 120:

[0050] like Figure 6 As shown, the forming structure 100 also includes a telescopic screw 150; the telescopic screw 150 is inserted into the support bracket 130 and threadedly connected to the support bracket 130; one end of the telescopic screw 150 inserted into the support bracket 130 is connected to the shaping wheel 110; before the steel strand is bent, the telescopic screw 150 drives the shaping wheel 110 to move towards the bending wheel 120 to clamp the steel strand between the shaping wheel 110 and the bending wheel 120; after the steel strand is bent, the telescopic screw 150 drives the shaping wheel 110 away from the bending wheel 120 to provide space for the steel strand to detach after bending.

[0051] In this embodiment, when it is necessary to place the steel strand between the shaping wheel 110 and the bending wheel 120, the steel strand is first placed on the top of the bending wheel 120. After the steel strand is placed securely, the telescopic screw 150 is rotated in the forward direction. With the cooperation of the thread, the telescopic screw 150 drives the shaping wheel 110 to move towards the bending wheel 120, thereby conveniently laying the steel strand between the shaping wheel 110 and the bending wheel 120.

[0052] In addition, when it is necessary to remove the bent steel strand from the shaping wheel 110, the telescopic screw 150 is rotated in the opposite direction. The telescopic screw 150, with the help of the thread, drives the shaping wheel 110 away from the bending wheel 120. During this process, the bending wheel 120 drives the steel strand to separate from the shaping wheel 110 through friction.

[0053] To prevent the steel strand from moving axially along the shaper wheel 110 during its movement toward the bending wheel 120:

[0054] like Figure 6 As shown, the forming structure 100 also includes a guide rail 160; one end of the telescopic screw 150 inserted into the bearing bracket 130 is rotatably mounted on the shaping wheel 110; one end of the guide rail 160 is connected to the shaping wheel 110, and the other end is slidably inserted into the bearing bracket 130 to restrict the shaping wheel 110 from rotating around its own axis.

[0055] In this embodiment, the rotating telescopic screw 150 drives the shaping wheel 110 to move under the threaded engagement. During this process, the shaping wheel 110 drives the guide rail 160 to move. With the cooperation of the bearing bracket 130, the guide rail 160 restricts the shaping wheel 110 from rotating around its own axis, so as to avoid the shaping wheel 110 from rotating during the process of moving towards or away from the bending wheel 120, thereby reducing the damage to the steel strand during the movement of the shaping wheel 110, and thus preventing the shaping wheel 110 from driving the steel strand to move along its own axis.

[0056] To limit the movement of the steel strand along the axis of the shaping wheel 110 during bending:

[0057] like Figure 5 As shown, the forming structure 100 also includes two limiting rings 170; the two limiting rings 170 are respectively fitted onto the shaping wheel 110 and the bending wheel 120 to restrict the steel strand from moving along the axial direction of the shaping wheel 110 during the bending process.

[0058] In this embodiment, by fitting two limiting rings 170 onto the shaping wheel 110 and the bending wheel 120 respectively, the steel strand between the shaping wheel 110 and the bending wheel 120 is clamped and fixed by the two limiting rings 170, thereby restricting the movement of the steel strand along the axial direction of the shaping wheel 110 during the bending process, thus preventing the steel strand from detaching from the shaping wheel 110 or the bending wheel 120 during the bending process.

[0059] In order to drive the drive shaft 140 and the telescopic screw 150 to rotate around their own axes:

[0060] like Figures 1-2As shown, it also includes a ratchet wrench 400 and a limiting pedal 500; the formed structure 100 also includes two adapter plugs 180; the two adapter plugs 180 are respectively connected to the telescopic screw 150 and the end of the drive shaft 140 away from the support bracket 130, and both can be detachably connected to the drive end of the ratchet wrench 400; the limiting pedal 500 is installed on the support bracket 130 and is used to limit the movement of the support bracket 130 when the ratchet wrench 400 is in operation.

[0061] In this embodiment, when it is necessary to rotate the telescopic screw 150 around its own axis, the ratchet wrench 400 is first inserted into the adapter plug 180 connected to the telescopic screw 150. Then, the operator steps on the limit pedal 500 to fix the device in the working position. Then, the ratchet wrench 400 drives the telescopic screw 150 to rotate around its own axis. When it is necessary to rotate the drive shaft 140 around its own axis, the ratchet wrench 400 is first inserted into the adapter plug 180 connected to the drive shaft 140. Then, the operator steps on the limit pedal 500 to fix the device in the working position. Then, the ratchet wrench 400 drives the drive shaft 140 to rotate around its own axis.

[0062] The terms “first”, “second”, etc., are used to distinguish similar objects, not to describe or indicate a specific order or sequence.

[0063] The term "comprising" or any other similar term is intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus / device that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent in such process, method, article, or apparatus / device.

[0064] The technical solution of this utility model has been described above with reference to the preferred embodiments shown in the accompanying drawings. However, it will be readily understood by those skilled in the art that the protection scope of this utility model is obviously not limited to these specific embodiments. Without departing from the principle of this utility model, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will all fall within the protection scope of this utility model.

Claims

1. A steel strand bending device, characterized in that: It includes a forming structure (100) and a shaping structure (200); The forming structure (100) includes a shaping wheel (110) and a bending wheel (120). The bending wheel (120) is disposed on the outer periphery of the shaping wheel (110) and is configured to revolve around the central axis of the shaping wheel (110) while rotating around its own axis, so as to drive the steel strand held between the two to bend and form along the outer periphery of the shaping wheel (110). The shaping structure (200) includes a plurality of shaping inserts (210); The shaping rod (210) is configured to move toward the shaping wheel (110) after the steel strand has been bent, so as to cooperate with the shaping wheel (110) to clamp and fix the bent steel strand, thereby limiting the springback of the steel strand and maintaining its bent shape.

2. The steel strand bending device according to claim 1, characterized in that: It also includes a follower structure (300); The shaping structure (200) also includes a plurality of shaping springs (220); The shaping spring (220) acts on the shaping insert (210) to provide a preload force for the shaping insert (210) to move toward the shaping wheel (110); The follower structure (300) is configured to move synchronously with the bending wheel (120) and limit and block the shaping rod (210) corresponding to the bending area during the movement. After the steel strand in the bending area is bent, the limitation on the shaping rod (210) is released.

3. The steel strand bending device according to claim 2, characterized in that: The forming structure (100) also includes a support bracket (130) and a drive shaft (140). The follower structure (300) includes a first baffle (310); The bending wheel (120) is rotatably mounted on the first baffle (310); One end of the drive shaft (140) is rotatably inserted into the bearing bracket (130), and the other end is connected to the first baffle (310) to drive the first baffle (310) and the bending wheel (120) to move synchronously. When the steel strand is bent in the bending area, the end of the shaping rod (210) corresponding to the bending area facing the shaping wheel (110) abuts against the first baffle (310); When the steel strand completes the bending within the bending area, as the first baffle (310) rotates, the shaping rod (210) disengages from the first baffle (310) and moves toward the shaping wheel (110).

4. The steel strand bending device according to claim 3, characterized in that: The follower structure (300) also includes a second baffle (320), a third baffle (330), a first positioning pin (340), and a second positioning pin (350); Both the second baffle (320) and the third baffle (330) are rotatably mounted on the drive shaft (140). Both the first baffle (310) and the third baffle (330) have arc-shaped guide holes on their surfaces; One end of the first positioning pin (340) is connected to the second baffle (320), and the other end is slidably inserted into the arc-shaped guide hole on the first baffle (310), so that the first baffle (310) drives the second baffle (320) to rotate after rotating a set angle; One end of the second positioning pin (350) is connected to the second baffle (320), and the other end is slidably inserted into the arc-shaped guide hole on the third baffle (330) so that the second baffle (320) drives the third baffle (330) to rotate after rotating a set angle; Before the steel strand is bent, one end of each of the shaping rods (210) facing the shaping wheel (110) abuts against the first baffle (310), the second baffle (320) and the third baffle (330) respectively.

5. The steel strand bending device according to claim 4, characterized in that: The first baffle (310), the second baffle (320) and the third baffle (330) all have multiple positioning grooves on the side facing the shaping insert (210); The end of the shaping rod (210) facing the shaping wheel (110) can be slidably inserted into the positioning groove.

6. The steel strand bending device according to claim 5, characterized in that: The shaping structure (200) also includes multiple lifting bending plates (230); One end of the shaping rod (210) is slidably inserted into the bearing bracket (130), and the other end is connected to the lifting bending plate (230). One end of the shaping spring (220) is connected to the bearing bracket (130), and the other end is connected to the lifting bending plate (230) to drive the shaping rod (210) to move toward the shaping wheel (110).

7. The steel strand bending device according to claim 6, characterized in that: The forming structure (100) also includes a telescopic screw (150). The telescopic screw (150) is inserted into the bearing bracket (130) and is threadedly connected to the bearing bracket (130); The telescopic screw (150) is inserted into the bearing bracket (130) at one end and connected to the shaping wheel (110). Before the steel strand is bent, the telescopic screw (150) drives the shaping wheel (110) to move toward the bending wheel (120) to clamp the steel strand between the shaping wheel (110) and the bending wheel (120); After the steel strand is bent, the telescopic screw (150) drives the shaping wheel (110) away from the bending wheel (120) to provide space for the steel strand to detach after bending.

8. The steel strand bending device according to claim 7, characterized in that: The forming structure (100) also includes a guide rail (160). The telescopic screw (150) is inserted into one end of the bearing bracket (130) and rotatably mounted on the shaping wheel (110). One end of the guide rail (160) is connected to the shaping wheel (110), and the other end is slidably inserted into the support bracket (130) to restrict the shaping wheel (110) from rotating around its own axis.

9. The steel strand bending device according to claim 8, characterized in that: The forming structure (100) also includes two limiting retaining rings (170). The two limiting rings (170) are respectively fitted onto the shaping wheel (110) and the bending wheel (120) to restrict the steel strand from moving along the axial direction of the shaping wheel (110) during the bending process.

10. The steel strand bending device according to claim 9, characterized in that: It also includes a ratchet wrench (400) and a limit pedal (500); The formed structure (100) also includes two adapter plugs (180). The two adapter plugs (180) are respectively connected to the telescopic screw (150) and the end of the drive shaft (140) away from the support bracket (130), and both can be detachably connected to the drive end of the ratchet wrench (400); The limiting pedal (500) is mounted on the support bracket (130) and is used to restrict the movement of the support bracket (130) when the ratchet wrench (400) is in operation.

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