Wire straightening device

Abstract

The utility model relates to metal processing equipment technical field, especially a kind of metal wire straightening device, including straightening structure, straightening structure includes rotating frame body, straightening frame, adjusting part and straightening block, the both sides of rotating frame body are respectively provided with shaft piece, external power source is rotated by shaft piece and drives rotating frame body, adjusting part is slidably arranged in the side of rotating frame body, be provided with inclined chute on straightening frame, the one end of adjusting part is provided with slide bar, adjusting part and straightening frame are connected and slide bar is inserted into slide groove, straightening block and straightening frame are connected, metal wire is inserted into rotating frame body from the shaft piece position at one end, and is connected with straightening block.In the utility model, straightening structure adopts rotating frame body to cooperate with the straightening frame with inclined chute and adjusting part, the synchronous radial adjustment of multiple straightening blocks can be realized by single adjusting wheel, quickly adapt to metal wire of different diameter and material, greatly shorten the debugging time when changing specification.

Description

Technical Field

[0001] This utility model relates to the field of metal processing equipment technology, and in particular to a metal wire straightening device. Background Technology

[0002] In the precision machining of metal wires (such as molybdenum wire, titanium wire, and copper wire), straightening and alignment are fundamental and crucial steps to ensure product straightness and improve the quality of subsequent processes. However, existing straightening technologies and equipment still have many limitations when applied to high-precision, automated production lines, which urgently need to be addressed. These limitations are specifically manifested in the following aspects: I. Traditional straightening of wheel sets requires adjustment using multiple handles or screws individually, making it impossible to quickly and synchronously adjust multiple wheel sets. Each time product specifications are changed or the process is adjusted, the machine must be stopped and a significant amount of time spent on repeated trials and measurements, severely impacting production efficiency and flexible manufacturing capabilities.

[0003] Second, in a discrete manufacturing layout, straightening is independent of subsequent flaw detection and cutting equipment. After straightening, the material needs to be unloaded, transported, and reloaded before it can enter the next process. This process is very prone to secondary deformation of the straightened material due to bumps and bending, which greatly reduces the effectiveness of the previous straightening process and makes it impossible to guarantee the straightness of the final product. Utility Model Content

[0004] In view of the technical problems existing in the background art, the utility model provides a metal wire straightening device to solve the above-mentioned problems.

[0005] To achieve the above objectives, the technical solution provided by this utility model is as follows: A wire straightening device includes a straightening structure comprising a rotating frame, a straightening frame, an adjusting member, and a straightening block. Shafts are respectively provided on both sides of the rotating frame, and the shafts are connected to an external power source, allowing the external power source to drive the rotating frame to rotate via the shafts. The straightening frame is disposed inside the rotating frame. The adjusting member is slidably disposed on one side of the rotating frame. The straightening frame has an inclined groove. One end of the adjusting member has a sliding rod, which is connected to the straightening frame and extends into the groove. The straightening block is connected to the straightening frame. The wire passes through the rotating frame from one end of the shaft and connects to the straightening block.

[0006] Preferably, the adjusting component includes an adjusting wheel, a connecting block, a support block, and an adjusting plate. The support block is sleeved on a shaft at one end of the rotating frame. The adjusting wheel is located on the outside of the rotating frame and is connected to the connecting block via a lead screw. One end of the connecting block is connected to the support block. The adjusting plate is rotatably connected to the shaft.

[0007] Preferably, at least two straightening frames are provided, and at least two protruding rods are provided on one end of the adjusting plate. The protruding rods extend into the adjusting plate from one end of the straightening frame, and the sliding rod is provided on the protruding rods.

[0008] Preferably, one end of the straightening block is recessed and has a groove, and there are several straightening blocks, with metal wires threaded through the grooves.

[0009] Preferably, a pre-tightening structure is also included, which includes a pre-tightening bracket, a first pre-tightening wheel, a second pre-tightening wheel, a pre-tightening adjusting block, and a pre-tightening motor. The first pre-tightening wheel is connected to the pre-tightening bracket via the pre-tightening motor, and the second pre-tightening wheel is rotatably connected to the pre-tightening adjusting block. One end of the pre-tightening adjusting block is hinged to the pre-tightening bracket, and a pre-tightening bolt is provided at one end of the pre-tightening adjusting block. One end of the pre-tightening bolt is connected to the pre-tightening bracket, and the metal wire is disposed between the first pre-tightening wheel and the second pre-tightening wheel.

[0010] Preferably, a length detection structure is also included, which is disposed at one end of the straightening structure. The length detection structure includes a length detection support, a first detection wheel, a second detection wheel, a length detection adjusting block, and a length detection adjusting screw. A length adjusting rod is provided at one end of the length detection support, and the length detection adjusting block is slidably connected to the length adjusting rod. The first detection wheel is connected to the length detection support via a motor, and the second detection wheel is rotatably connected to the length detection adjusting block. A length adjusting limiting plate is provided at one end of the length adjusting rod, and the length detection adjusting screw is threadedly connected to the length adjusting limiting plate and has one end connected to the length detection adjusting block. The metal wire is disposed between the first and second detection wheels, and a rotary encoder is provided on the first detection wheel.

[0011] Preferably, the system also includes a traction structure comprising at least two traction components. Each traction component includes a traction support, a traction support block, a first traction wheel, a second traction wheel, and a traction adjusting screw. The traction structure is positioned on one side of the length detection structure. The first traction wheel is positioned at one end of the traction support, and the second traction wheel is positioned on the traction support block. A traction adjusting rod is provided on the traction support, and the traction support block is slidably connected to the traction adjusting rod. A traction adjusting limiting plate is provided at one end of the traction adjusting rod, and the traction adjusting screw passes through the traction adjusting limiting plate and connects to the traction support block. The metal wire is positioned between the first and second traction wheels.

[0012] Preferably, the traction structure further includes a drive assembly, which includes a first gear, a second gear, and a pulley drive component. The first gear is located at the other end of the traction support and is coaxially connected to the first traction wheel. The second gear is located at the other end of the traction support block and is coaxially connected to the second traction wheel. The driving wheel of the pulley drive component is connected to the first gear of one of the traction components, and the driven wheel is connected to the first gear of the other traction component. The first gear and the second gear within the same traction component mesh with each other.

[0013] Preferably, the system also includes a punching structure, which is disposed on one side of the traction structure. The punching structure includes a punching support, a punching box, a cutter bracket, and a cam assembly. The punching box is disposed at one end of the punching support. The cutter bracket is slidably connected to the punching support. A cutter is connected to one end of the cutter bracket and extends into the punching box. A return spring is disposed between the cutter support and the punching box. The cam assembly is driven to rotate by an external power source. An abutment rod is disposed at one end of the cutter bracket, and the cam assembly abuts against the abutment rod.

[0014] Preferably, the punching box is provided with a through hole, and the metal wire is disposed in the through hole.

[0015] This utility model has the following advantages and beneficial effects: By integrating the pre-tensioning, straightening, length detection, traction, and punching structures sequentially into the same frame, a continuous automated production line is constructed. The metal wire is cut in one go from feeding to cutting, effectively avoiding secondary deformation and positioning errors caused by the traditional multi-equipment conversion, and significantly improving production efficiency and product straightness consistency. Attached Figure Description

[0016] Figure 1 This is a structural diagram of a metal wire straightening device proposed in this utility model; Figure 2 This is a front view of a metal wire straightening device proposed in this utility model; Figure 3 This is a schematic diagram of the pre-tightening structure of a metal wire straightening device proposed in this utility model; Figure 4 This is a schematic diagram of the straightening structure of a metal wire straightening device proposed in this utility model; Figure 5 This is an exploded view of the rotating frame in the straightening structure of the wire straightening device proposed in this utility model; Figure 6 This is a schematic diagram of the rotating frame, straightening frame, and adjusting plate structure of a metal wire straightening device proposed in this utility model. Figure 7This is a schematic diagram of the straightening block structure of a metal wire straightening device proposed in this utility model; Figure 8 This is a schematic diagram of the length detection structure of a metal wire straightening device proposed in this utility model; Figure 9 This is a schematic diagram of the traction structure of a metal wire straightening device proposed in this utility model; Figure 10 for Figure 9 Another perspective on the structure diagram; Figure 11 This is a schematic diagram of the punching structure of a metal wire straightening device proposed in this utility model; Figure 12 This is a schematic diagram of the cam position of a metal wire straightening device proposed in this utility model.

[0017] Reference numerals: 1-Straightening structure, 11-Rotating frame, 12-Shaft, 13-Straightening frame, 14-Inclined groove, 15-Straightening block, 16-Slot, 2-Adjusting component, 21-Adjusting wheel, 22-Connecting block, 23-Support block, 24-Adjusting insert, 25-Protruding rod, 26-Slide rod, 27-Protective cover, 3-Pre-tightening structure, 31-Pre-tightening bracket, 32-First pre-tightening wheel, 33-Second pre-tightening wheel, 34-Pre-tightening adjusting block, 35-Pre-tightening motor, 36-Pre-tightening bolt, 4-Length detection structure, 41-Length detection support, 42-First detection wheel, 43-Second detection wheel, 44-Length detection adjusting block, 45-Length detection adjusting screw 46-Length adjustment rod, 47-Length adjustment limit plate, 5-Traction structure, 511-Traction support, 512-Traction support block, 513-First traction wheel, 514-Second traction wheel, 515-Traction adjustment screw, 516-Traction adjustment rod, 517-Traction adjustment limit plate, 52-Drive assembly, 521-First gear, 522-Second gear, 523-Pulley transmission component, 6-Punching structure, 61-Punching support, 62-Punching box, 63-Cutter bracket, 64-Cutter, 65-Cam assembly, 66-Reset spring, 67-Abutment rod, 68-Through hole, 7-Sleeve, 8-Frame, 9-Metal wire flaw detector. Detailed Implementation

[0018] 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 some embodiments of this utility model, but not all embodiments.

[0019] 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.

[0020] Example like Figures 1-12 As shown, a metal wire straightening device includes a frame 8, a straightening structure 1, a pre-tensioning structure 3, a length detection structure 4, a traction structure 5, and a punching structure 6. The pre-tensioning structure 3, straightening structure 1, length detection structure 4, traction structure 5, and punching structure 6 are sequentially arranged on the frame 8, forming a continuous production line. A metal wire support frame is provided on the outside of the frame 8, and the metal wire is wound around it. The wire enters from the pre-tensioning structure 3, is straightened by the straightening structure 1, measured by the length detection structure 4, conveyed by the traction structure 5, and finally cut by the punching structure 6, achieving fully automated processing. This layout realizes continuous integrated operation from feeding to cutting, significantly improving production efficiency and processing consistency.

[0021] like Figures 1-3 As shown, the pre-tightening structure 3 is located at the front end of the straightening structure 1. The pre-tightening structure 3 includes a pre-tightening bracket 31, a first pre-tightening wheel 32, a second pre-tightening wheel 33, a pre-tightening adjusting block 34, and a pre-tightening motor 35. The pre-tightening bracket 31 is a plate-shaped structure and is fixed to the frame 8 by anchor bolts. The first pre-tightening wheel 32 is connected to the pre-tightening bracket 31 through the pre-tightening motor 35. The pre-tightening motor 35 is a servo motor or a stepper motor, which drives the first pre-tightening wheel 32 to rotate. The second pre-tightening wheel 33 is rotatably connected to the pre-tightening adjusting block 34. One end of the pre-tightening adjusting block 34 is hinged to the pre-tightening bracket 31. A pre-tightening bolt 36 is provided at one end of the pre-tightening adjusting block 34, and one end of the pre-tightening bolt 36 is connected to the pre-tightening bracket 31. By screwing the pre-tightening bolt 36, the pre-tightening bolt 36 extends into the pre-tightening bracket 31 and cooperates with it. Under the force exerted only between the pre-tightening wheels, the pre-tightening bolt 36 will not come out of the pre-tightening bracket 31. The angle of the pre-tightening adjusting block 34 can be adjusted, thereby changing the gap between the second pre-tightening wheel 33 and the first pre-tightening wheel 32. The metal wire is placed between the first pre-tightening wheel 32 and the second pre-tightening wheel 33. The pre-tightening motor 35 drives the first pre-tightening wheel 32 to rotate, providing feeding power. The second pre-tightening wheel 33 presses the metal wire with the pre-tightening bolt 36 to ensure stable feeding. This pre-tightening structure 3 can flexibly adjust the clamping force to adapt to metal wires of different diameters, ensuring continuous and stable feeding.

[0022] like Figures 1-12As shown, the straightening structure 1 is provided with at least two sets. The straightening structure 1 includes a rotating frame 11, a straightening frame 13, an adjusting component 2, and a straightening block 15. Shafts 12 are respectively provided on both sides of the rotating frame 11. Bearing supports are provided on the frame 8. The two ends of the shafts 12 are respectively connected to the bearings of the bearing supports. The shafts 12 are connected to an external power source, which is a rotary motor. The rotary motor is located inside the frame 8. The shaft end of the rotary motor and the shaft 12 are driven by a belt and a pulley. Specifically, a large-size pulley is connected to the shaft end of the rotary motor, and a small-size pulley is provided on the shaft 12. A belt is provided between the large-size pulley and the small-size pulley. When the shaft end of the rotary motor rotates, it drives the large-size pulley to rotate, which in turn drives the small-size pulley to rotate through the belt, thereby driving the rotating frame 11 to rotate.

[0023] like Figures 1-2 , Figures 4-7 As shown, the straightening frame 13 is located inside the rotating frame 11. The adjusting component 2 is slidably disposed on one side of the rotating frame 11. The adjusting component 2 includes an adjusting wheel 21, a connecting block 22, a support block 23, and an adjusting insert 24. The support block 23 is sleeved on the shaft 12 at one end of the rotating frame 11 and can rotate relative to the shaft 12. The adjusting wheel 21 is located on the outside of the rotating frame 11 and is connected to the connecting block 22 via a lead screw. One end of the connecting block 22 and the support block 23 are engaged by a bayonet. The connecting block 22 stabilizes the support block 23 outside the shaft 12, so that the support block 23 will not rotate when the shaft 12 rotates. The adjusting plate 24 is rotatably connected to the shaft 12. The adjusting plate 24 and the support block 23 are fitted together. At least two protruding rods 25 are provided on one end of the adjusting plate 24. The protruding rods 25 extend into the straightening frame 13 from one end. The sliding rod 26 is provided on the protruding rods 25. The straightening frame 13 is provided with an inclined groove 14. The sliding rod 26 extends into the inclined groove 14. When the adjusting wheel 21 rotates, it drives the connecting block 22 to move through the lead screw, thereby pushing the support block 23 and the adjusting plate 24 to slide along the shaft 12 axially. The sliding rod 26 on the protruding rod 25 slides in the inclined groove 14, forcing the straightening frame 13 to move radially, thereby realizing the synchronous adjustment of the straightening frame 13.

[0024] The straightening blocks 15 are connected to the straightening frame 13. Several straightening blocks 15 are evenly distributed on the straightening frame 13. One end of each straightening block 15 has a recessed groove 16, which is arc-shaped. The shaft 12 is hollow inside for threading a metal wire, which passes through the shaft 12 and connects to the groove 16. When the rotating frame 11 rotates, the straightening blocks 15 rotate synchronously with the straightening frame 13, straightening the metal wire at multiple points and in multiple directions. The curved surface of the groove 16 matches the outer diameter of the metal wire, providing a uniform straightening force. A protective cover 27 is installed outside the straightening structure 1. This protective cover 27 is bolted to the frame 8, completely enclosing the rotating frame 11 and the adjusting components 2 inside. The protective cover 27 is made of transparent high-strength engineering plastic, which can not only isolate the intrusion of foreign objects and avoid the safety hazards to personnel caused by high-speed rotating parts, but also facilitate the observation of the internal straightening process. A wire hole for the metal wire to enter and exit is opened on one side of the protective cover 27.

[0025] like Figure 1 , Figure 2 , Figure 8 As shown, the length detection structure 4 is located at one end of the straightening structure 1. The length detection structure 4 includes a length detection support 41, a first detection wheel 42, a second detection wheel 43, a length detection adjusting block 44, and a length detection adjusting screw 45. A length adjusting rod 46, which serves as a guide rod, is located at one end of the length detection support 41. The length detection adjusting block 44 is slidably connected to the length adjusting rod 46. The first detection wheel 42 is connected to the length detection support 41 via a motor, which drives the first detection wheel 42 to rotate. A rotary encoder is installed on the first detection wheel 42 to detect the number of rotations and calculate the feeding length. The second detection wheel 43 is rotatably connected to the length detection adjusting block 44. A length adjusting limit plate 47 is located at one end of the length adjusting rod 46. The length detection adjusting screw 45 is threadedly connected to the length adjusting limit plate 47, and one end is connected to the length detection adjusting block 44. By turning the length detection adjusting screw 45, the length detection adjusting block 44 can be pushed to slide along the length adjusting rod 46, adjusting the pressure between the second detection wheel 43 and the first detection wheel 42. The metal wire is placed between the first detection wheel 42 and the second detection wheel 43, and the rotary encoder monitors the feeding length in real time to ensure subsequent cutting accuracy.

[0026] like Figure 1 , Figure 2 , Figure 9 , Figure 10As shown, the traction structure 5 is located on one side of the length detection structure 4. The traction structure 5 includes at least two sets of traction components. Each traction component includes a traction support 511, a traction support block 512, a first traction wheel 513, a second traction wheel 514, and a traction adjusting screw 515. The traction support 511 is a block structure, and a traction adjusting rod 516 is provided on the traction support 511. The traction adjusting rod 516 is a guide rod. The traction support block 512 is located at the upper end of the traction support 511 and is slidably connected to the traction adjusting rod 516. The first traction wheel 513 is located at one end of the traction support 511, and the second traction wheel 514 is located on the traction support block 512. A traction adjusting limiting plate 517 is provided at one end of the traction adjusting rod 516, and the traction adjusting screw 515 passes through the traction adjusting limiting plate 517 and connects to the traction support block 512. The position of the traction support block 512 can be adjusted by turning the traction adjustment screw 515, thereby changing the gap between the first traction wheel 513 and the second traction wheel 514. A metal wire is disposed between the first traction wheel 513 and the second traction wheel 514, and the traction structure 5 is driven by the drive assembly 52.

[0027] The drive assembly 52 includes a first gear 521, a second gear 522, and a pulley drive 523. The first gear 521 is located at the other end of the traction support 511 and is coaxially connected to the first traction wheel 513. The second gear 522 is located at the other end of the traction support block 512 and is coaxially connected to the second traction wheel 514. The first gear 521 and the second gear 522 within the same traction assembly mesh with each other to ensure that the first traction wheel 513 and the second traction wheel 514 rotate synchronously. The driving wheel of the pulley drive 523 is connected to the first gear 521 of one of the traction assemblies, and the driven wheel is connected to the first gear 521 of another traction assembly. The driving wheel is driven to rotate by an external motor, which in turn causes the first gear 521 and the first traction wheel 513 to rotate. Because the first gear 521 and the second gear 522 mesh, the second gear 522 rotates synchronously during the rotation of the first gear 521. The second gear 522 drives the second traction wheel 514 to rotate. This traction structure 5 realizes synchronous driving of multiple sets of wheel trains and adjustable clearance, ensuring smooth and synchronous conveying of the metal wire. A wire flaw detector 9 is installed on one side of the traction structure 5. The wire flaw detector 9 uses an existing eddy current flaw detector, model LGTS-01. The wire passes through the coil in the middle of the wire flaw detector 9. Its flaw detection principle is: the coil carrying alternating current will induce eddy currents on the surface of the nearby wire. Defects in the wire itself (such as cracks or inclusions) will change the flow path and magnitude of the eddy currents, which will cause a change in the impedance of the detection coil. The instrument identifies defects by analyzing this change.

[0028] like Figure 1 , Figure 2 , Figure 11 , Figure 12 As shown, the punching structure 6 is located on one side of the wire flaw detector 9. The punching structure 6 includes a punching support 61, a punching box 62, a cutter bracket 63, and a cam assembly 65. The punching support 61 is a frame structure, and the punching box 62 is located at one end of the punching support 61. The punching box 62 has a through hole 68, and the wire is placed in the through hole 68. The punching support 61 is provided with a guide rail, and the cutter bracket 63 is slidably connected to the guide rail of the punching support 61 and can slide along the shape direction of the guide rail. One end of the cutter bracket 63 is connected to a cutter 64, which extends into the punching box 62. A return spring 66 is provided between the cutter bracket 63 and the punching box 62. The return spring 66 is a compression spring that provides a return force for the cutter 64. The cam assembly 65 is connected inside the punching support 61. The cam assembly 65 is driven to rotate by an external power source, which is a motor. One end of the cutter bracket 63 is provided with an abutment rod 67, and the cam assembly 65 abuts against the abutment rod 67. When the motor drives the cam assembly 65 to rotate, the cam assembly 65 pushes the abutment rod 67 and the cutter bracket 63 to slide, and the cutter 64 cuts into the punching box 62 to cut the metal wire. The cam assembly 65 continues to rotate, and the return spring 66 pushes the cutter bracket 63 to return to its original position. A storage box is provided at one end of the punching box 62. The metal wire passes through the punching box 62. When the cutter 64 descends and cuts the metal wire, the cut metal wire falls into the storage box.

[0029] Guide sleeves 7 are respectively installed at the front end of the length detection structure 4, the traction structure 5, and the punching structure 6. These sleeves 7 are fixed to the frame 8 by brackets. A hole is precisely machined in the center of each sleeve 7, with its inner diameter matching the outer diameter of the metal wire. The metal wire passes through this hole. The sleeves 7 are made of wear-resistant alloy steel and have undergone surface hardening treatment, effectively resisting wear caused by long-term friction of the metal wire and ensuring guiding accuracy and service life. The holes in the centers of each sleeve 7 are strictly aligned, forming a continuous guiding channel, providing stable radial constraint for the metal wire in the process transition interval. This sleeve assembly constitutes a precise guiding path for the metal wire across each functional module, effectively suppressing radial jitter and positional drift during the conveying process, providing a fundamental guarantee for the accurate execution of the detection, traction, and cutting processes.

[0030] Working principle: The metal wire is led out from the support frame, pressed by the pre-tightening structure 3 and fed at a uniform speed, and enters the rotating straightening structure 1 for multi-directional straightening; then it passes through the length detection structure 4, where the rotary encoder monitors the feeding length in real time and feeds it back to the control system; the traction structure 5 drives the metal wire forward synchronously, and the metal wire flaw detector 9 realizes online defect detection; when the set length is reached, the control system triggers the cam assembly 65 of the punching structure 6 to rotate, pushing the cutter 64 to complete the fixed-length cutting, and the cut material segment is put into the storage box.

[0031] The entire process achieves fully automated continuous operation from material feeding, straightening, testing to cutting, effectively improving production efficiency and product consistency.

[0032] The above content is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. For those skilled in the art, the present utility model can have various modifications and variations. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A metal wire straightening device, characterized in that: The device includes a straightening structure comprising a rotating frame, a straightening frame, an adjusting component, and a straightening block. Shafts are respectively provided on both sides of the rotating frame, and these shafts are connected to an external power source, allowing the external power source to drive the rotating frame to rotate via the shafts. The straightening frame is slidably disposed inside the rotating frame, and the adjusting component is slidably disposed on one side of the rotating frame. The straightening frame has an inclined groove, and one end of the adjusting component has a sliding rod. The adjusting component and the straightening frame are slidably connected, with the sliding rod engaging within the groove. The straightening block is connected to the straightening frame. A metal wire passes through the rotating frame from one end of the shaft and connects to the straightening block.

2. The wire straightening device according to claim 1, characterized in that: The adjusting component includes an adjusting wheel, a connecting block, a support block, and an adjusting plate. The support block is sleeved on a shaft at one end of the rotating frame. The adjusting wheel is located on the outside of the rotating frame and is connected to the connecting block via a lead screw. One end of the connecting block is connected to the support block. The adjusting plate is rotatably connected to the shaft.

3. The wire straightening device according to claim 2, characterized in that: At least two straightening frames are provided, and at least two protruding rods are provided on one end of the adjusting plate. The protruding rods extend into the straightening frame from one end, and the sliding rod is provided on the protruding rods.

4. The wire straightening device according to claim 3, characterized in that: One end of the straightening block is recessed and has a groove. There are several straightening blocks, and the metal wire is threaded through the groove.

5. The wire straightening device according to claim 1, characterized in that: It also includes a pre-tightening structure, which includes a pre-tightening bracket, a first pre-tightening wheel, a second pre-tightening wheel, a pre-tightening adjusting block, and a pre-tightening motor. The first pre-tightening wheel is connected to the pre-tightening bracket via the pre-tightening motor. The second pre-tightening wheel is rotatably connected to the pre-tightening adjusting block. One end of the pre-tightening adjusting block is hinged to the pre-tightening bracket. A pre-tightening bolt is provided at one end of the pre-tightening adjusting block. One end of the pre-tightening bolt is connected to the pre-tightening bracket. The metal wire is disposed between the first pre-tightening wheel and the second pre-tightening wheel.

6. The wire straightening device according to claim 1, characterized in that: It also includes a length detection structure, which is disposed at one end of the straightening structure. The length detection structure includes a length detection support, a first detection wheel, a second detection wheel, a length detection adjusting block, and a length detection adjusting screw. One end of the length detection support is provided with a length adjusting rod, and the length detection adjusting block is slidably connected to the length adjusting rod. The first detection wheel is connected to the length detection support via a motor, and the second detection wheel is rotatably connected to the length detection adjusting block. One end of the length adjusting rod is provided with a length adjusting limit plate, and the length detection adjusting screw is threadedly connected to the length adjusting limit plate and has one end connected to the length detection adjusting block. The metal wire is disposed between the first and second detection wheels, and a rotary encoder is disposed on the first detection wheel.

7. A wire straightening device according to claim 6, characterized in that: It also includes a traction structure, which comprises at least two sets of traction components. Each traction component includes a traction support, a traction support block, a first traction wheel, a second traction wheel, and a traction adjusting screw. The traction structure is disposed on one side of the length detection structure. The first traction wheel is disposed at one end of the traction support, and the second traction wheel is disposed on the traction support block. A traction adjusting rod is disposed on the traction support, and the traction support block is slidably connected to the traction adjusting rod. A traction adjusting limiting plate is disposed at one end of the traction adjusting rod, and the traction adjusting screw passes through the traction adjusting limiting plate and connects to the traction support block. The metal wire is disposed between the first traction wheel and the second traction wheel.

8. A wire straightening device according to claim 7, characterized in that: The traction structure also includes a drive assembly, which includes a first gear, a second gear, and a pulley drive component. The first gear is located at the other end of the traction support and is coaxially connected to the first traction wheel. The second gear is located at the other end of the traction support block and is coaxially connected to the second traction wheel. The driving wheel of the pulley drive component is connected to the first gear of one of the traction components, and the driven wheel is connected to the first gear of the other traction component. The first gear and the second gear within the same traction component mesh with each other.

9. A wire straightening device according to claim 7, characterized in that: It also includes a punching structure, which is disposed on one side of the traction structure. The punching structure includes a punching support, a punching box, a cutter bracket, and a cam. The punching box is disposed at one end of the punching support. The cutter bracket is slidably connected to the punching support. A cutter is connected to one end of the cutter bracket. The cutter extends into the punching box. A return spring is disposed between the cutter support and the punching box. The cam is driven to rotate by an external power source. An abutment rod is disposed at one end of the cutter bracket. The cam and the abutment rod abut against each other.

10. A wire straightening device according to claim 9, characterized in that: The punching box has a through hole, and the metal wire is disposed in the through hole.

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