A bending wire straightening device and a straightening method

Abstract

The application relates to the technical field of wire straightening, in particular to a bent wire straightening device and a straightening method, wherein the straightening device comprises a base which is placed on the ground and is used for forming a stable foundation; a first straightening roller which is rotationally arranged on the base and is provided with a first straightening groove in the circumferential direction; a second straightening roller which is rotationally arranged on the base, is arranged in correspondence with the first straightening roller and is provided with a second straightening groove in the circumferential direction, and the second straightening groove cooperates with the first straightening groove to form a straightening space; and a driving mechanism which is arranged on the base and is used for driving the first straightening roller and the second straightening roller to rotate in opposite directions. The application has the effect of improving work efficiency.

Description

Technical Field

[0001] This application relates to the technical field of wire straightening, and in particular to a device and method for straightening bent wires. Background Technology

[0002] Currently, in the production of metal and alloy wires, raw materials or initial materials are generally processed into linear form for ease of transportation before further processing. However, due to various factors during transportation, storage, and processing, wires often experience bending and deformation, especially for relatively soft copper, aluminum, magnesium, and titanium wires, as well as alloy wires, which are prone to impact deformation or bending. This not only affects the performance of the wires but may also pose a potential threat to the structure, quality, and safety of the product. Therefore, it is particularly important to straighten bent wires on-site during processing or secondary use.

[0003] Traditional straightening methods often rely on manual labor or simple mechanical devices. These methods suffer from low efficiency, poor straightening results, and complex operation, making it difficult to meet the demands of modern construction sites and factories for efficient and precise straightening. This is especially true when handling alloy wire or metal wire profiles, where the large quantity and size often render traditional methods inadequate, consuming significant manpower and resources and resulting in low work efficiency. Summary of the Invention

[0004] To improve work efficiency, this application provides a device for straightening bent wires.

[0005] Firstly, this application provides a bending wire straightening device, which adopts the following technical solution:

[0006] A bending wire straightening device, including a base placed on the ground to form a stable foundation;

[0007] The first straightening roller is rotatably mounted on the base and has a first straightening groove opened along the circumference;

[0008] The second straightening roller is rotatably mounted on the base and is correspondingly arranged to the first straightening roller. A second straightening groove is provided along the circumference, and the second straightening groove cooperates with the first straightening groove to form a straightening space.

[0009] A drive mechanism, mounted on the base, is used to drive the first straightening roller and the second straightening roller to rotate in opposite directions.

[0010] By adopting the above technical solution, the head of the bent wire is pulled out and inserted into the straightening space between the first straightening roller and the second straightening roller. Then, the drive mechanism drives the first straightening roller and the second straightening roller to rotate, so that the wire is straightened.

[0011] The above settings enable continuous and automated straightening of bent wires, improving straightening efficiency and reducing manual operation. Compared with traditional manual or simple mechanical straightening, this solution provides a more efficient straightening method and improves work efficiency.

[0012] Optionally, the base is further provided with a pre-straightening mechanism, the pre-straightening mechanism comprising:

[0013] A fixing frame is provided on the base;

[0014] A pre-straightening frame is mounted on the fixed frame;

[0015] There are two pre-straightening rollers, both of which rotate on the pre-straightening frame. The two pre-straightening rollers are inclined along the direction of the wire, and the height of the pre-straightening roller closer to the wire is lower than the height of the pre-straightening roller farther away from the wire.

[0016] By adopting the above technical solution, the wire is pre-straightened before formal straightening, reducing large-curvature bending. The inclined setting reduces the stress damage to the wire caused by excessive initial straightening angle. Furthermore, the pre-straightening facilitates subsequent straightening, improves straightening accuracy, and reduces wear on the straightening rollers. The inclined pre-straightening rollers adapt to the natural bending state of the wire. The addition of a pre-straightening step improves the overall straightening effect and efficiency.

[0017] Optionally, the pre-straightening mechanism further includes:

[0018] The first straightening roller is rotatably mounted on the fixed frame and has a first straightening groove opened along the circumference.

[0019] The second straightening roller is rotatably mounted on the fixed frame and is arranged correspondingly to the first straightening roller. A second straightening groove is provided along the circumference, and the second straightening groove and the first straightening groove cooperate to form a straightening space.

[0020] By adopting the above technical solution, the wire position is further adjusted after pre-straightening to ensure the correct position of the wire when entering the main straightening space; the utilization rate of the straightening space is improved, the straightening failure rate is reduced, and the design of the straightening groove ensures the stability of the wire during the straightening process; the addition of the straightening roller improves the controllability of the straightening process and enhances the straightening effect; the setting of the straightening groove further straightens the wire, making the movement trajectory of the wire predetermined, reducing jumps during straightening, improving straightening accuracy, and improving work efficiency.

[0021] Optionally, the fixing frame is provided with a striking component, the striking component comprising:

[0022] A rotating rod is rotatably mounted on the fixed frame and extends along the direction of wire movement;

[0023] A striking block is mounted on the rotating rod and abuts against the side wall of the wire near the base;

[0024] An elastic element is disposed on the fixed frame and connected to the rotating rod, used to drive the rotating rod closer to the wire.

[0025] By adopting the above technical solution, the wire is struck during the pre-straightening process to remove surface stress. The setting of the elastic element ensures continuous contact between the striking block and the wire, which improves the mechanical properties and surface quality of the wire. During the pre-straightening process, the striking action helps to release the residual stress inside the wire.

[0026] Optionally, the striking component further includes:

[0027] A lever is slidably disposed on the side wall of the pre-straightening roller away from the wire, and rotates with the pre-straightening roller, and has a guide surface; the guide surface can abut against the rotating rod, driving the rotating rod to rotate;

[0028] A limiting block, disposed on the fixed frame, is used to limit the rotation angle of the rotating rod;

[0029] A reset component is disposed on the pre-straightening roller and connected to the actuating rod, used to drive the actuating rod away from the pre-straightening roller.

[0030] By adopting the above technical solution, the rotation of the pre-straightening roller drives the rotation of the rotating rod. The limiting block and the reset component control the rotation angle and reset of the rotating rod, thereby realizing the automation and periodicity of the hammering action, improving the stability and reliability of the hammering component, and increasing the degree of automation of the straightening process. Compared with manual hammering, this solution removes the stress on the surface of the wire more evenly and effectively.

[0031] Optionally, the base is further provided with an auxiliary mechanism, the auxiliary mechanism including:

[0032] A scraper is disposed on the side of the first straightening roller near the wire entry end and abuts against the side wall of the wire away from the base.

[0033] By adopting the above technical solution, the scraper cleans and removes waste from the upper side of the wire, and the hammering block completes the cleaning of the entire wire, reducing the entry of debris or oxides into the subsequent straightening rollers, reducing damage to the wire, and maintaining the straightening accuracy.

[0034] Optionally, the auxiliary mechanism further includes:

[0035] A support rod is disposed on the base and parallel to the axis of the straightening space. A through groove is provided on the scraper, and the through groove is fitted onto the support rod. The scraper hangs freely on the support rod in the vertical direction. When the scraper contacts the side wall of the wire away from the base, the through groove does not contact the support rod.

[0036] By adopting the above technical solutions, the support rod and the through groove ensure the stability and flexibility of the scraper, improve the surface quality of the wire, reduce the rigidity of subsequent use, and the scraper design is adapted to wires of different diameters. At the same time, it reduces the hard contact between residual waste or oxides on the wire and the scraper, thus reducing scraper damage.

[0037] Optionally, the contact surface between the scraper and the wire is elastic and insulated, and the scraper is conductive; a connecting groove is formed on the scraper, the connecting groove being formed vertically, and the auxiliary mechanism further includes:

[0038] A connecting rod is disposed on the base and parallel to the support rod, and the sidewall of the connecting groove is tangential to and in contact with the connecting rod;

[0039] A power source is located between the connecting rod and the support rod, and is connected to one end of the connecting rod and the support rod through a first wire and a second wire. The other end of the connecting rod and the support rod can be connected through a scraper to form a closed loop.

[0040] The first indicator light is located on the second wire between the power supply and the support rod.

[0041] By adopting the above technical solution, good contact between the scraper and the wire is ensured. After the wire separates from the scraper, the scraper falls freely, forming a closed loop with the connecting rod, power supply, support rod, and indicator light. This indicates that the scraper and wire are not in contact, enabling real-time monitoring of the wire surface quality. It can detect when a wire is straightened or when it breaks, facilitating timely equipment shutdown, wire replacement, and subsequent work arrangements, thus improving work efficiency and enhancing the safety and reliability of the straightening process. This solution also detects wire surface problems more promptly and accurately.

[0042] Optionally, the base is further provided with a damage detection component, the damage detection component comprising:

[0043] There are two fixing blocks, both of which are set on the base, and the two fixing blocks correspond one-to-one with the two sides of the scraper;

[0044] The third wire is used to connect the power source, the fixing block, and the connecting rod.

[0045] The second indicator light is located on the third wire;

[0046] Two insulating sheets are provided, each corresponding to one side of the scraper and in contact with the fixing block, and each has a sliding hole.

[0047] A striking pin is disposed on the scraper and electrically connected to the scraper. It slides within the sliding hole, and when the scraper is tilted, the striking pin passes through the sliding hole and abuts against the fixing block.

[0048] An elastic support is disposed between the insulating sheet and the scraper to connect the insulating sheet and the scraper, and is elastic.

[0049] By adopting the above technical solution, when the wire is not completely broken and straightened, the scraper comes into contact with the surface defects of the wire and moves relative to it. The surface defects engage the scraper, increasing the friction. As a result, the end of the scraper that is in contact with the wire moves with the wire, causing the scraper to drive the striker through the sliding hole and into contact with the fixing block. This energizes the second indicator light, reminding the workers to mark the area for subsequent wire cutting, reducing the use of damaged parts in the construction area, and improving the construction quality.

[0050] Secondly, this application provides a wire straightening method, which adopts the following technical solution:

[0051] A method for straightening wires includes the following steps:

[0052] Pre-straightening treatment: After the wire is pulled out, pre-straightening is performed to initially eliminate large curvature bends;

[0053] Dynamic tapping stress relief: When the wire is pre-straightened, the wire surface is periodically tapped and impacted at a preset frequency to peel off the surface oxide layer and release local stress, and to scrape off surface debris.

[0054] Main straightening process: The wire enters the straightening space formed by the first straightening roller and the second straightening roller. The first straightening roller and the second straightening roller rotate in opposite directions and the wire is straightened by the continuous squeezing action of the first straightening groove and the second straightening groove.

[0055] By adopting the above technical solutions, including wire pre-straightening treatment, dynamic hammering stress relief, and main straightening processing, efficient and precise straightening of bent wires is achieved, improving the overall performance and quality of the wires, and increasing straightening efficiency and quality.

[0056] In summary, this application includes at least one of the following beneficial technical effects:

[0057] 1. It enables continuous and automated straightening of bent wires, improving straightening efficiency and reducing manual operation. Compared with traditional manual or simple mechanical straightening, this solution provides a more efficient straightening method and improves work efficiency.

[0058] 2. When the wire is not completely broken and straightened, the scraper comes into contact with the surface defects of the wire, and relative movement occurs. The surface defects engage the scraper, increasing friction. This causes the end of the scraper in contact with the wire to move with the wire, which in turn causes the scraper to drive the striker through the sliding hole and into contact with the fixing block. This energizes the second indicator light, reminding the workers to mark the area for subsequent wire cutting, reducing the use of damaged parts in the construction area, and improving construction quality. Attached Figure Description

[0059] Figure 1 This is an overall structural diagram of the straightening device in the embodiments of this application;

[0060] Figure 2 This is an installation diagram showing the position of the mounting base in an embodiment of this application;

[0061] Figure 3 yes Figure 2 Enlarged view of A in the middle;

[0062] Figure 4 This is a detailed structural schematic diagram of the pre-straightening mechanism in the embodiments of this application;

[0063] Figure 5 This is a detailed structural diagram of the auxiliary mechanism in the embodiments of this application;

[0064] Figure 6 This is a circuit diagram showing the connection between the power supply and the first indicator light in an embodiment of this application;

[0065] Figure 7 This is a diagram showing the installation position of the rotary seat in other embodiments of this application;

[0066] Figure 8 This is a detailed illustration of the rotating seat in other embodiments of this application.

[0067] Reference numerals: 100, base; 200, rotating seat; 210, first support; 220, second support; 230, expansion shaft; 300, first straightening roller; 310, first straightening groove; 400, second straightening roller; 410, second straightening groove; 500, drive mechanism; 600, pre-straightening mechanism; 610, fixed frame; 620, pre-straightening frame; 630, pre-straightening roller; 640, first straightening roller; 650, second straightening roller; 660, striking assembly; 661, rotating rod; 662, striking block; 663, actuating rod; 664, limiting block; 670, second adjusting cylinder; 680, pressure wheel; 700, auxiliary... 710. Auxiliary mechanism; 711. Scraper; 712. Through slot; 713. Connecting slot; 714. Trigger slot; 720. Support rod; 730. Connecting rod; 740. Power supply; 750. First indicator light; 760. First wire; 770. Second wire; 780. Damage detection component; 781. Fixing block; 782. Third wire; 783. Second indicator light; 784. Insulating sheet; 785. Strike pin; 786. Elastic support; 787. Sliding hole; 790. Switch module; 810. Sliding seat; 820. First adjusting cylinder; 830. Adjusting seat; 840. Mounting seat; 850. Adjusting bolt; 860. Fixing seat. Detailed Implementation

[0068] The following combination Figures 1 to 8 This application will be described in further detail.

[0069] This embodiment discloses a device for straightening bent wires.

[0070] Reference Figure 1 , Figure 2 and Figure 3 A wire straightening device includes: a base 100 placed on the ground, a fixed seat 860 disposed on the base 100, a plurality of first straightening rollers 300 rotatably disposed on the fixed seat 860, a plurality of second straightening rollers 400 rotatably disposed on the fixed seat 860 corresponding to the first straightening rollers 300, and a drive mechanism 500 disposed on the fixed seat 860 for driving the first straightening rollers 300 and the second straightening rollers 400 to rotate in opposite directions; when straightening the wire, the end of the bent wire is passed between the first straightening rollers 300 and the second straightening rollers 400, and the drive mechanism 500 drives the first straightening rollers 300 and the second straightening rollers 400 to rotate in opposite directions, and the wire moves between the first straightening rollers 300 and the second straightening rollers 400, thereby straightening the wire.

[0071] Reference Figure 4The fixed base 860 is welded to the base 100 or detachably connected by bolts. A pre-straightening mechanism 600 is provided on the fixed base 860. The pre-straightening mechanism 600 includes a fixed frame 610 fixedly connected to the fixed base 860, and a pre-straightening frame 620 slidably connected to the fixed frame 610. The pre-straightening frame 620 slides vertically via a slide rail. A second adjusting cylinder 670 is fixedly connected to the fixed frame 610. The piston rod of the second adjusting cylinder 670 is connected to the pre-straightening frame. A 620 connection is used to adjust the height of the pre-straightening frame 620; two pre-straightening rollers 630 are rotatably connected to the pre-straightening frame 620, and the rotation axis of the pre-straightening rollers 630 is set horizontally; the two pre-straightening rollers 630 are inclined along the movement direction of the wire, and the height of the pre-straightening roller 630 closer to the wire entry end is lower than the height of the pre-straightening roller 630 farther away from the wire entry end; a pre-straightening groove is opened on the peripheral side wall of the pre-straightening roller 630, and the pre-straightening groove is an arc-shaped groove.

[0072] The pre-straightening mechanism 600 also includes a first straightening roller 640 rotatably connected to the fixed base 860. The rotation axis of the first straightening roller 640 is parallel to the rotation axis of the pre-straightening roller 630. A first straightening groove is provided on the first straightening roller 640. A second straightening roller 650 is also rotatably connected to the fixed base 860. The axis of the second straightening roller 650 is parallel to the axis of the first straightening roller 640. The second straightening roller 650 is located on the side of the first straightening roller 640 near the base 100. A second straightening groove is provided on the peripheral sidewall of the second straightening roller 650. The first straightening groove and the second straightening groove cooperate with each other to form a straightening space.

[0073] To facilitate the bending of the wire into the two pre-straightening rollers 630 while keeping it taut, a pressure roller 680 is rotatably connected to the pre-straightening frame 620. The pressure roller 680 is located in the direction in front of the pre-straightening roller 630 when it is inserted into the wire, and the pressure roller 680 is located on the side of the pre-straightening roller 630 away from the base 100, away from the first straightening roller 640. The pressure roller 680 works with the pre-straightening roller 630 to press and straighten the wire. The structure of the pressure roller 680 is the same as that of the pre-straightening roller 630.

[0074] Reference Figure 2 and Figure 3Multiple first straightening rollers 300 are rotatably connected to the fixed base 860. The rotation axis of the first straightening rollers 300 is parallel to the rotation axis of the pre-straightening roller 630. The multiple first straightening rollers 300 are evenly distributed on the fixed base 860 in a horizontal direction away from the pre-straightening roller 630. A first straightening groove 310 is formed on the peripheral side wall of the first straightening roller 300. Multiple second straightening rollers 400 are arranged on the fixed frame 610. The second straightening rollers 400 correspond one-to-one with the first straightening rollers 300, and the second straightening rollers 400 are located on the side of the first straightening rollers 300 closer to the base 100. A second straightening groove 410 is formed on the peripheral side wall of the second straightening rollers 400. Both the first straightening groove 310 and the second straightening groove 410 are arc-shaped grooves, and the first straightening groove 310 and the second straightening groove 410 cooperate to form a straightening space, in which the wire is passed.

[0075] To accommodate straightening wires of different thicknesses, the fixed base 860 has multiple sliding holes along the vertical direction. An adjusting base 830 is slidably connected within the sliding holes, and the second straightening roller 400 rotates on the adjusting base 830. A mounting base 840 is detachably connected to the fixed base 860 by bolts. An adjusting bolt 850 is threaded onto the mounting base 840, or a bolt is threaded through the mounting base 840 and multiple nuts are provided for limiting its position. The adjusting bolt 850 is rotatably connected to the adjusting base 830, and drives the adjusting base 830 to move closer to or away from the base 100.

[0076] The drive mechanism 500 includes a drive motor mounted on a fixed base 860. The drive motor drives the first straightening roller 300 to rotate via a chain and sprocket. The second straightening roller 400 rotates in the opposite direction to the first straightening roller 300 as the first straightening roller 300 rotates and the wire slides.

[0077] Reference Figure 4 To reduce stress during wire straightening, a striking assembly 660 is provided on the fixing frame 610. The striking assembly 660 includes a rotating rod 661 rotatably connected to the fixing frame 610, the rotation axis of which is parallel to or coincides with the rotation axis of the pre-straightening roller 630. A striking block 662 is fixedly connected to the end of the rotating rod 661 away from the fixing frame 610. The striking block 662 is located on the side of the pre-straightening roller 630 away from the wire entry end, and the striking block 662 is perpendicular to the wire entry end. The material is brought into contact with the side of the pre-straightening roller 630. To facilitate maintaining the contact between the striking block 662 and the wire, an elastic element is provided on the fixing frame 610. The elastic element can be a torsion spring, coil spring, or other elastic structural component. In this embodiment, a torsion spring is preferred. The torsion spring connects the fixing frame 610 and the rotating rod 661, driving the rotating rod 661 to approach the wire. To reduce damage to the wire by the striking block 662, the contact surface between the striking block 662 and the wire is arc-shaped and smooth, and the edges are chamfered.

[0078] To further enhance the rotation amplitude of the rotating rod 661, a guide hole is provided on the side wall of the pre-straightening roller 630, and the axis of the guide hole is parallel to the rotation axis of the pre-straightening roller 630. The striking assembly 660 also includes a toggle rod 663 slidably connected in the guide hole. A reset component is provided in the guide hole, which is a spring connecting the bottom wall of the guide hole and the toggle rod 663. The toggle rod 663 rotates with the pre-straightening roller 630. A guide surface is provided at the end of the toggle rod 663 away from the pre-straightening roller 630. The guide surface is tangent to the side wall of the rotating rod 661 and is located on the side of the rotating rod 661 closer to the pre-straightening roller 630. As it rotates, it can drive the rotating rod 661 to rotate.

[0079] In order to facilitate limiting the rotation angle of the rotating rod 661, a limiting block 664 is fixedly connected to the fixing frame 610. The limiting block 664 extends to the rotation trajectory of the rotating rod 661 and is located on the side close to the base 100.

[0080] Reference Figure 4 , Figure 5 and Figure 6 To facilitate further cleaning of debris or oxides on the wire surface, an auxiliary mechanism 700 is provided on the fixed base 860. The auxiliary mechanism 700 includes a connecting rod 730 and a support rod 720 fixedly connected to the fixed base 860. The axis of the connecting rod 730 is parallel to the axis of the support rod 720, and the axis of the support rod 720 is parallel to the axis of the straightening space. Both the connecting rod 730 and the support rod 720 are located on the first straightening roller 640 and the first straightening roller 30 near the first straightening roller 640. Between 0 and 0, the connecting rod 730 is located on the side of the support rod 720 away from the base 100; the end of the connecting rod 730 near the first straightening roller 640 is connected to the first wire 760, the other end of the first wire 760 is connected to the power supply 740, the end of the power supply 740 away from the first wire 760 is connected to the second wire 770, the second wire 770 is connected to the first indicator light 750, and then connected to the support rod 720, and both the connecting rod 730 and the support rod 720 are conductive.

[0081] A scraper 710 is provided on the connecting rod 730. The scraper 710 is made of conductive metal and is rigid, not easily deformed. A connecting groove 712 is formed on the scraper 710. The connecting groove 712 is formed vertically and is fitted onto the connecting rod 730, allowing the scraper 710 to slide vertically. The sidewall of the connecting groove 712 along its length is in contact with the connecting rod 730 and is conductive. A through groove 711 is also formed on the scraper 710. The through groove 711 is fitted onto the support rod 720, and its sidewall is either not in contact with the support rod 720 or in insulated contact. The opening direction and length direction of the through groove 711 are consistent with those of the connecting groove 712. The end of the through groove 711 near the connecting groove 712 can make conductive contact with the support rod 720 as the scraper 710 falls. The scraper 710 is also provided with a trigger groove 713, which is sleeved on the wire. The upper wall of the trigger groove 713 abuts against the wire, and the abutting position is elastic and insulated. When the wire separates from the trigger groove 713, the scraper 710 falls freely, so that the upper wall of the through groove 711 makes conductive contact with the support rod 720, which powers on the first indicator light 750 to provide an alarm.

[0082] To facilitate defect detection of the wire, a damage detection component 780 is also provided on the mounting base 860. The damage detection component 780 includes two fixing blocks 781 fixedly connected to the mounting base 860. The fixing blocks 781 are located between the support rod 720 and the connecting rod 730, and a third wire 782 is connected to one of the fixing blocks 781. The third wire 782 is connected to the second wire 770 between the power supply 740 and the first indicator light 750, and a second indicator light 783 is connected to the third wire 782. A scraper 710 slides vertically between the two fixing blocks 781, and the portion of the scraper 710 located between the fixing blocks 781 is fixed. The fixed connection has an elastic support, which is made of insulating material, preferably rubber in this embodiment. The scraper 710 is connected to an insulating sheet 784 through the elastic support. The insulating sheet 784 abuts against the fixed block 781, and the contact surface with the fixed block 781 is a smooth plane that facilitates sliding. A striker 785 is fixedly connected to the scraper 710. The striker 785 is located between the scraper 710 and the insulating sheet 784. The insulating sheet 784 has a sliding hole 787. The striker 785 slides in the sliding hole 787 and is hidden in the sliding hole 787. When the scraper 710 squeezes the elastic support, the striker 785 passes through the sliding hole 787 and makes conductive contact with the fixed block 781.

[0083] Among them, reference Figure 6 The support rod 720, connecting rod 730, scraper 710, fixing block 781, and striker 785 together form a virtual switch module 790, which forms a parallel circuit with the power supply 740, first wire 760, second wire 770, third wire 782, first indicator light 750, and second indicator light 783.

[0084] In other embodiments, refer to Figure 7 and Figure 8 To facilitate the straightening of bundled wires, a rotating seat 200 for fixing the wire bundles is rotatably mounted on the fixed seat 860; a sliding seat 810 is slidably connected to the base 100, the sliding direction of the sliding seat 810 being parallel to the rotation axis of the pre-straightening roller 630; a first adjusting cylinder 820 is fixedly connected to the base 100, the piston rod of the first adjusting cylinder 820 being connected to the sliding seat 810 and pushing the sliding seat 810 to slide; the rotating seat 200 includes a first bracket 210 fixedly connected to the sliding seat 810, and an expansion shaft 230 is rotatably connected to the first bracket 210, the expansion shaft 230 being a pneumatic... The expansion shaft 230 has its axis parallel to the rotation axis of the pre-straightening roller 630. A rotating bearing is coaxially mounted on the other end of the expansion shaft 230. A second bracket 220 is detachably connected to the sliding seat 810 by bolts. The second bracket 220 is positioned corresponding to the first bracket 210 and is located at the end of the expansion shaft 230 away from the first bracket 210. A support ring is formed at the end of the second bracket 220 away from the sliding seat 810, which abuts concentrically with the rotating bearing on the expansion shaft 230 to support the rotating bearing. A servo motor is fixedly connected to the first bracket 210, and the output shaft of the servo motor is coaxially connected to the expansion shaft 230.

[0085] In other embodiments, an external servo motor may not be required as a power source. The expansion shaft 230 drives the wire bundle to rotate on its own under the traction of the first straightening roller 300 and the second straightening roller 400.

[0086] In other embodiments, the servo motor can drive the expansion shaft 230 to rotate via gear transmission.

[0087] This application also discloses a method for straightening wires.

[0088] The wire straightening method includes the following steps:

[0089] Wire bundle fixing and rotation: The bundled wires are placed on the expansion shaft 230, and then the expansion shaft 230 is supported by the second bracket 220. Then, the expansion shaft 230 is rotated by the servo motor.

[0090] Pre-straightening treatment: After the wire is pulled out from the wire bundle, it comes into contact with two first pre-straightening rollers 630 and second pre-straightening rollers 630, and then passes through the straightening space formed by the first straightening roller 640 and second straightening roller 650 in sequence, and then passes through the straightening space formed by the first straightening roller 300 and second straightening roller 400. The first pre-straightening rollers 630 and second pre-straightening rollers 630 pre-straighten the wire to initially eliminate large curvature bends;

[0091] Dynamic stress relief by tapping: During wire pre-straightening, as the pre-straightening roller 630 rotates, it drives the actuating rod 663 to push the rotating rod 661 to rotate. The rotating rod 661 drives the striking block 662 to overcome the torsion of the torsion spring and move away from the wire until the rotating rod 661 contacts the limiting block 664. The actuating rod 663 is guided by the guide surface to approach the pre-straightening roller 630, causing the rotating rod 661 to separate from the actuating rod 663. The torsion spring drives the rotating rod 661 to approach the wire, causing the striking block 662 to strike the wire and then adhere to it. During the movement of the wire, the striking block 662 swings slightly under the friction with the wire, tapping the wire slightly. As the pre-straightening roller 630 rotates continuously, it periodically taps and impacts the wire surface at a preset frequency, peeling off the surface oxide layer and releasing local stress, and scraping off surface debris.

[0092] Main straightening process: The wire enters the straightening space formed by the first straightening roller 300 and the second straightening roller 400. The drive mechanism 500 drives the first straightening roller 300 and the second straightening roller 400 to rotate in opposite directions. The wire is straightened by the continuous squeezing action of the first straightening groove 310 and the second straightening groove 410.

[0093] Condition monitoring: During the wire straightening process, the wire is checked for cracks, dents or other damage, and the presence of any wire is also checked.

[0094] The implementation principle of this embodiment is as follows: the bent wire passes through the pressure roller 680 and the pre-straightening roller 630, then passes between the first straightening roller 640 and the second straightening roller 650, and then extends between the first straightening roller 300 and the second straightening roller 400.

[0095] Alternatively, the wire bundle can be fixed to the expansion shaft 230 of the rotating seat 200. The operator places the wire bundle on the air shaft (expansion shaft 230), inflates the air shaft to clamp the inner wall of the wire bundle, and fixes the second bracket 220 to the sliding seat 810 with bolts to ensure that the support ring and the rotating bearing of the expansion shaft 230 are concentrically abutted to provide stable support. The position of the sliding seat 810 is adjusted to accommodate the length of the wire bundle, and the first adjusting cylinder 820 on the base 100 is activated to push the sliding seat 810 to slide on the base 100 until the end of the wire bundle is aligned with the pre-straightening mechanism 600. The end of the wire is then passed through the pre-straightening mechanism 600, and the end of the wire is manually pulled through the straightening space formed by the first straightening roller 640 and the second straightening groove to ensure that the wire is horizontally centered.

[0096] The pre-straightening roller 630 has an arc-shaped pre-straightening groove. The pre-straightening roller 630 is set at an angle, and the roller height near the expansion shaft 230 is lower. It gradually straightens the wire and bends it. The height of the pre-straightening frame 620 is adjusted by the second adjusting cylinder 670 so that the pre-straightening groove matches the wire diameter.

[0097] The wire passes through the main straightening roller group, and the end of the wire is introduced into the straightening space formed by the first straightening groove 310 and the second straightening groove 410 to ensure that the wire is centered. Adjust the position of the second straightening roller 400 according to the wire diameter: loosen the bolts on the mounting seat 840, rotate the adjusting bolt 850, and push the adjusting seat 830 up and down along the sliding hole until the straightening space matches the wire diameter, and then tighten the bolt.

[0098] Start the drive mechanism 500 for straightening, turn on the drive motor, and drive the first straightening roller 300 to rotate through the chain and sprocket. The second straightening roller 400 rotates in the opposite direction due to friction, pulling the wire forward.

[0099] If a servo motor is used to drive the expansion shaft 230, the servo motor is started to make the wire bundle rotate actively for feeding. If no external servo motor is used, the wire bundle is passively rotated by the traction force of the straightening roller.

[0100] When the wire passes through the pre-straightening roller 630, the actuating rod 663 on the side wall of the pre-straightening roller 630 periodically pushes the rotating rod 661 as it rotates, which drives the striking block 662 to strike the surface of the wire at high frequency, releasing the straightening stress; the elastic element (torsion spring) ensures that the striking block 662 is always in contact with the wire, and the limiting block 664 limits the rebound amplitude of the rotating rod 661.

[0101] The wire passes through the trigger groove 713 of the scraper 710, and the scraper 710 is lifted into a high position by the wire (the upper wall of the trigger groove 713 is elastically insulated). When the wire breaks or detaches, the scraper 710 falls freely: the through groove 711 makes conductive contact with the support rod 720, triggering the first indicator light 750 to light up, prompting the operator to check for abnormalities. The edge of the scraper 710 scrapes off oxides or debris from the surface of the wire.

[0102] If there are bumps or cracks on the surface of the wire, the scraper 710 squeezes the elastic support, pushing the striker 785 through the sliding hole 787 of the insulating sheet 784 and making conductive contact with the fixing block 781; the circuit is turned on, triggering the second indicator light 783 to light up, indicating that the wire is damaged.

[0103] After straightening is completed, stop the drive motor and servo motor, release air and retract the air shaft, remove the wire bundle, and clean the residue on the straightening roller and scraper 710.

[0104] The above are all preferred embodiments of this application and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A device for straightening bent wires, characterized in that: include: The base (100) is placed on the ground to form a stable foundation; The first straightening roller (300) is rotatably mounted on the base (100) and has a first straightening groove (310) circumferentially provided. The second straightening roller (400) is rotatably mounted on the base (100) and is correspondingly arranged with the first straightening roller (300). A second straightening groove (410) is provided along the circumference. The second straightening groove (410) and the first straightening groove (310) cooperate to form a straightening space. A drive mechanism (500) is disposed on the base (100) and is used to drive the first straightening roller (300) and the second straightening roller (400) to rotate in opposite directions; The base (100) is also provided with a pre-straightening mechanism (600), the pre-straightening mechanism (600) comprising: A fixing frame (610) is disposed on the base (100); A pre-straightening frame (620) is mounted on the fixed frame (610); There are two pre-straightening rollers (630), both of which rotate on the pre-straightening frame (620). The two pre-straightening rollers (630) are inclined along the direction of the wire, and the height of the pre-straightening roller (630) closer to the wire is lower than the height of the pre-straightening roller (630) farther away from the wire. The fixing frame (610) is provided with a striking component (660), the striking component (660) comprising: A rotating rod (661) is rotatably mounted on the fixed frame (610) and extends along the direction of wire movement; A striking block (662) is disposed on the rotating rod (661) and abuts against the side wall of the wire near the base (100); An elastic element is disposed on the fixed frame (610) and connected to the rotating rod (661) for driving the rotating rod (661) closer to the wire; The striking component (660) also includes: A lever (663) is slidably disposed on the side wall of the pre-straightening roller (630) away from the wire, and rotates with the pre-straightening roller (630), and has a guide surface; the guide surface can abut against the rotating rod (661) and drive the rotating rod (661) to rotate; A limiting block (664) is disposed on the fixing frame (610) to limit the rotation angle of the rotating rod (661); A reset component is disposed on the pre-straightening roller (630) and connected to the actuating rod (663) for driving the actuating rod (663) away from the pre-straightening roller (630).

2. The bending wire straightening device according to claim 1, characterized in that: The pre-straightening mechanism (600) further includes: The first straightening roller (640) is rotatably mounted on the fixed frame (610) and has a first straightening groove opened in the circumferential direction; The second straightening roller (650) is rotatably mounted on the fixed frame (610) and is correspondingly arranged with the first straightening roller (640). A second straightening groove is provided along the circumference, and the second straightening groove cooperates with the first straightening groove to form a straightening space.

3. The bending wire straightening device according to claim 1 or 2, characterized in that: An auxiliary mechanism (700) is also provided on the base (100), the auxiliary mechanism (700) including: The scraper (710) is disposed on the side of the first straightening roller (300) near the wire entry end and abuts against the side wall of the wire away from the base (100).

4. The bending wire straightening device according to claim 3, characterized in that: The auxiliary mechanism (700) also includes: A support rod (720) is disposed on the base (100) and parallel to the axis of the straightening space. A through groove (711) is provided on the scraper (710). The through groove (711) is sleeved on the support rod (720). The scraper (710) hangs freely on the support rod (720) in the vertical direction. When the scraper (710) contacts the side wall of the wire away from the base (100), the through groove (711) does not contact the support rod (720).

5. The bending wire straightening device according to claim 4, characterized in that: The contact surface between the scraper (710) and the wire is elastic and insulated, and the scraper (710) is conductive; a connecting groove (712) is provided on the scraper (710), the connecting groove (712) is opened in the vertical direction, and the auxiliary mechanism (700) further includes: A connecting rod (730) is disposed on the base (100) and parallel to the support rod (720). The side wall of the connecting groove (712) is tangential to and in contact with the connecting rod (730). A power supply (740) is located between the connecting rod (730) and the support rod (720), and is connected to one end of the connecting rod (730) and the support rod (720) through a first wire (760) and a second wire (770). The other end of the connecting rod (730) and the support rod (720) can be connected through a scraper (710) to form a closed loop. The first indicator light (750) is located on the second wire (770) between the power supply (740) and the support rod (720).

6. The bending wire straightening device according to claim 5, characterized in that: The base (100) is further provided with a damage detection component (780), the damage detection component (780) comprising: There are two fixing blocks (781), both of which are set on the base (100), and the two fixing blocks (781) correspond one-to-one with the two sides of the scraper (710); The third wire (782) is used to connect the power supply (740), the fixing block (781) and the connecting rod (730). The second indicator light (783) is disposed on the third wire (782); There are two insulating sheets (784), which correspond one-to-one with the two sides of the scraper (710) and are in contact with the fixing block (781), and have sliding holes (787). A striker (785) is disposed on the scraper (710) and electrically connected to the scraper (710). It slides in the sliding hole (787), and when the scraper (710) is tilted, the striker (785) passes through the sliding hole (787) and abuts against the fixing block (781). An elastic support (786) is disposed between the insulating sheet (784) and the scraper (710) for connecting the insulating sheet (784) and the scraper (710), and is elastic.

7. A method for straightening wire using the bending wire straightening device as described in any one of claims 1-6, characterized in that: Includes the following steps: Pre-straightening treatment: After the wire is pulled out, pre-straightening is performed to initially eliminate large curvature bends; Dynamic tapping stress relief: When the wire is pre-straightened, the wire surface is periodically tapped and impacted at a preset frequency to peel off the surface oxide layer and release local stress, and to scrape off surface debris. Main straightening process: The wire enters the straightening space formed by the first straightening roller (300) and the second straightening roller (400). The first straightening roller (300) and the second straightening roller (400) rotate in opposite directions and the wire is straightened by the continuous squeezing action of the first straightening groove (310) and the second straightening groove (410).

Images