A continuous straightening device for copper wire production

Abstract

This invention discloses a continuous straightening device for copper wire production, comprising: a first connecting box, and a second connecting box fixedly installed at one end of the first connecting box on its upper surface. A traction roller pressing mechanism performs 360° roller pressing straightening on the outer surface of the drawn copper wire. This application uses multiple sets of n-shaped frames fixedly installed on the upper surface of the connecting boxes of the continuous straightening mechanism and the traction roller pressing mechanism. The continuous straightening mechanism is driven within these n-shaped frames, allowing it to draw continuously produced copper wire into the traction roller pressing mechanism. The traction roller pressing mechanism is fixedly installed in the second connecting box. During the copper wire straightening process, the continuous straightening mechanism precisely corrects the straightness of the copper wire through multi-angle pressure synergy, eliminating deformations such as bending and twisting, completing the initial straightening. Subsequently, the mechanism performs 360° roller pressing on the outer surface of the copper wire for secondary fine straightening, ultimately producing high-precision, high-quality straightened copper wire.

Description

Technical Field

[0001] This invention relates to the field of copper straightening technology, specifically to a continuous straightening device for copper wire production. Background Technology

[0002] Copper materials refer to various shapes made of pure copper or copper alloys, including copper plates, copper rods, copper tubes, copper strips, copper wires, copper bars, and other copper materials. During the processing of copper rods and copper tubes, the rollers may be bent, and straightening devices are usually used to straighten the rollers.

[0003] For example, Chinese Patent No. CN218692747U discloses a copper straightening device, including a base plate, a bracket mounted on the top of the base plate, a first mounting seat mounted in the middle of the top of the base plate, a second mounting seat horizontally arranged at the top of the bracket, a collection box assembled at the rear end of the base plate, and a second rotating wheel assembled at the rear end of the right side of the first mounting seat. This copper straightening device, through the configuration of a connecting belt, a first rotating wheel, a second rotating wheel, a rotary motor, and a feeding roller, places the copper material on the feeding roller. Starting the rotary motor drives the second rotating wheel to rotate, which in turn causes the feeding roller to rotate. The first and second rotating wheels are connected by a connecting belt, thereby driving the first rotating wheel and the lower pressure roller to rotate, thus feeding the copper material between the lower and upper pressure rollers. The lower and upper pressure rollers then straighten the copper material, achieving the purpose of straightening the copper material while conveying it. This device has high automation efficiency and solves the problem of time-consuming and labor-intensive feeding structures.

[0004] However, the aforementioned copper straightening device cannot continuously straighten the copper wire during the straightening process. As the copper wire passes through the lower and upper pressure rollers, it can only receive a single or intermittent straightening force. If the copper wire has complex bends or kinks, a single extrusion is insufficient to completely eliminate the deformation, easily leading to localized residual curvature and non-compliance with straightness standards. Furthermore, it cannot perform 360° roller pressing on the outer surface of the copper wire during the straightening process, meaning that pressure can only be applied in a fixed direction, making it impossible to handle multi-dimensional bends. Especially for copper wires with spiral twists or irregular deformations, it is difficult to achieve all-round straightening, resulting in low precision of the finished product, which is difficult to meet the stringent quality requirements of industries such as electronics and precision instruments. Summary of the Invention

[0005] The purpose of this invention is to provide a continuous straightening device for copper wire production, in order to solve the problems mentioned in the background art, such as the inability to continuously straighten copper wire during the straightening process, which easily leads to local residual curvature of the copper wire and non-compliance with straightness standards, and the inability to perform 360° rolling operation on the outer surface of the copper wire during the straightening process, making it difficult to achieve all-round straightening and resulting in low precision of the finished product.

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

[0007] A continuous straightening device for copper wire production includes: a first connecting box, on the upper surface of which multiple sets of n-shaped frames are fixedly installed, and a continuous straightening mechanism is drivenly installed within each set of n-shaped frames, thereby enabling the continuous straightening mechanism to draw the continuously produced copper wire into a traction roller pressing mechanism; the traction roller pressing mechanism is fixedly installed on the upper surface of a second connecting box, and the second connecting box is fixedly installed at one end of the first connecting box; the traction roller pressing mechanism can perform 360° roller pressing straightening on the outer surface of the drawn copper wire, thereby enabling the copper wire to reach a straightened state by subjecting it to all-round roller pressing treatment.

[0008] Preferably, the continuous straightening mechanism includes a traction block and multiple sets of second transmission columns. The traction block is slidably installed in the traction groove, which is opened at both ends of the n-shaped frame. A first transmission column is rotatably installed between every two sets of laterally opposite traction blocks. Two sets of conveyor belts are fitted on the outer surface of the multiple sets of first transmission columns, and a Λ-shaped roller belt is fixed between the two sets of conveyor belts by bolts.

[0009] In this configuration, multiple sets of second drive columns are rotatably installed in the first connecting box at equal intervals. Each set of second drive columns has two sets of conveyor belts fitted on its outer surface. A V-shaped roller pressing belt is fixed between the two sets of conveyor belts by bolts. The V-shaped groove of the V-shaped roller pressing belt is used to accommodate copper wires, and the concave part of the V-shaped roller pressing belt and the protruding part of the Λ-shaped roller pressing belt have an interlocking and mating structure. This allows the V-shaped roller pressing belt and the Λ-shaped roller pressing belt to form a meshing and pressure-applying structure for the copper wires. Through the combination design of the Λ-shaped and V-shaped, multi-angle pressure coverage can be formed on the outer surface of the copper wires, realizing the correction of the straightness of the copper wires and the elimination of complex deformations such as local bending and torsion.

[0010] Preferably, one set of the first transmission columns is fixedly connected to the output shaft of the first geared motor, while the second transmission column is fixedly connected to the output shaft of the second geared motor. This allows the first and second geared motors to drive the first and second transmission columns to rotate relative to each other, thereby enabling the first and second transmission columns to drive the Λ-shaped and V-shaped rollers fitted on the outer surface to rotate relative to each other, thus achieving the biting of the copper wire.

[0011] Preferably, a first transmission disc and a second transmission disc are fixedly installed at one end of each of the multiple sets of first transmission columns and second transmission columns, and a transmission belt is fitted on the outer surface of each of the multiple sets of first transmission discs and second transmission discs, so that the multiple sets of first transmission columns and second transmission columns can be synchronously pulled and rotated.

[0012] Preferably, threaded rods are fixedly installed on the upper surfaces of multiple sets of traction blocks. The upper ends of the threaded rods extend from the traction groove to the upper surface of the n-shaped frame. A Λ-shaped frame is fixedly installed between the upper surfaces of every two sets of horizontally opposite threaded rods. The lower surface of the center part of the Λ-shaped frame is fixedly connected to the piston rod of the electric push rod. The electric push rod is fixedly installed in the n-shaped frame, so that the electric push rod can push or pull the traction block to slide up and down in the traction groove through the threaded rod. The driven traction block can adjust the depth of the Λ-shaped roller pressing belt fitted on the outer surface of the first transmission column into the V-shaped roller pressing belt through the lifting operation.

[0013] Each set of threaded rods has two sets of handwheels threadedly installed on its outer surface. These two sets of handwheels can respectively thread against the upper and lower surfaces of the n-shaped frame to lock the lifting and lowering of the threaded rods.

[0014] Preferably, a Λ-shaped disk is fixedly installed on the middle section of the outer surface of the first transmission column, and the Λ-shaped disk is driven in the Λ-shaped roller belt to maintain the convex shape of the Λ-shaped roller belt;

[0015] Each set of the second transmission columns is provided with a top contact plate, and the top contact plate located between the second transmission columns simultaneously contacts the inner ring surface of the V-shaped roller belt, thereby preventing the V-shaped roller belt from collapsing inward due to the roller pressure of the Λ-shaped roller belt.

[0016] Preferably, the traction roller pressing mechanism includes a mounting box and two sets of bearing seats. The mounting box and bearing seats are both fixedly installed on the upper surface of the second connecting box. A first connecting plate and a second connecting plate are rotatably installed at one end of the mounting box. The other ends of the first connecting plate and the second connecting plate both rotate through the mounting box and are fixedly installed with gears that mesh with each other. This allows the first connecting plate and the second connecting plate to rotate relative to each other to achieve the biting and traction of the copper wire. A third transmission plate is fixedly installed at one end of the gear of the second connecting plate. A transmission belt is also fitted on the outer surface of the third transmission plate, and the other end of the transmission belt is fitted on the outer surface of one set of the second transmission plates. The copper wire bitten by the first connecting plate and the second connecting plate is pulled into the rotating tube, which is rotatably installed between the two sets of bearing seats.

[0017] Preferably, a fourth transmission disc is fixedly mounted on the outer surface of the rotating tube, and the fourth transmission disc is connected to a fifth transmission disc via a transmission belt; the fifth transmission disc is fixedly mounted on the output shaft of a third geared motor, and the third geared motor is fixedly installed on the inner bottom surface of the second connecting box. Based on the above structure, the third geared motor drives the fifth transmission disc to rotate, and drives the fourth transmission disc to rotate synchronously via the transmission belt, thereby realizing the 360° circumferential rotation of the rotating tube.

[0018] A connecting block is fixed inside the rotating tube, and the connecting block has a combing hole that communicates with the rotating tube in the axial direction. The combing hole has a tapered structure that gradually narrows from the inlet to the outlet.

[0019] Preferably, the outer surfaces of the rotating tube are respectively connected to expansion tubes at both ends. The inner wall of the expansion tube has four sets of sliding grooves evenly distributed along the circumference. Each set of sliding grooves is slidably fitted with three sets of U-shaped frames. The open ends of the U-shaped frames are rotatably mounted with ball bearings through bearings. The ball bearings in the four sets of sliding grooves together form a straightening channel for the copper wire to pass through. When the rotating tube drives the expansion tube to rotate, the outer circumferential surface of the ball bearing rolls into contact with the outer surface of the copper wire and forms a 360° circumferential rolling structure.

[0020] Guide blocks are fixed at both ends of the U-shaped frame. The guide blocks and the guide grooves opened at both ends of the sliding groove form a sliding pair. The sliding stroke of the guide blocks along the guide grooves limits the radial movement trajectory of the U-shaped frame.

[0021] Preferably, a connecting column is fixedly installed in the sliding groove, the connecting column slides through into the U-shaped frame, and a rectangular spring is fitted on the outer surface of the connecting column, with the two ends of the rectangular spring fixedly connected between the sliding groove and the U-shaped frame.

[0022] Compared with the prior art, the beneficial effects of the present invention are:

[0023] 1. Multi-level coordinated straightening improves straightening accuracy.

[0024] Through a two-stage linkage design of the continuous straightening mechanism and the traction roller pressing mechanism, the copper wire is subjected to a dual process of "preliminary straightening + secondary fine straightening".

[0025] The continuous straightening mechanism forms a multi-angle pressure coverage through the concave-convex interlocking structure of the Λ-shaped roller pressing belt and the V-shaped roller pressing belt, which can simultaneously correct the straightness of the copper wire and eliminate complex deformations such as local bending and torsion.

[0026] The traction roller pressing mechanism drives the ball bearing to perform 360° circumferential roller pressing through the rotating tube. Combined with the guiding and shaping of the tapered comb hole, it realizes all-round dynamic straightening of the outer surface of the copper wire, ensuring that the wire achieves ideal straightness and flatness in all directions.

[0027] 2. Adaptive adjustment and stable clamping, compatible with multiple cable specifications.

[0028] Adjustable pressure structure: The electric push rod drives the Λ-shaped frame to raise and lower the threaded rod, adjusting the depth of the Λ-shaped roller pressing belt embedded in the V-shaped roller pressing belt to adapt to copper wires of different diameters or hardness; the handwheel locking structure can fix the position of the threaded rod to ensure stable pressure during the straightening process.

[0029] Elastic buffer and guiding design: The U-shaped frame slides stably in the sliding groove through the cooperation of the guide block and the guide groove; the connecting column and the rectangular spring form an elastic support, which allows the ball bearing to adapt to the surface of the copper wire, providing sufficient straightening pressure and absorbing vibration through elastic deformation to avoid damaging the wire surface, and is compatible with the straightening needs of copper wires with different tolerances.

[0030] 3. High-efficiency transmission and stable traction ensure continuous production.

[0031] Synchronous transmission system: The first transmission column and the second transmission column achieve synchronous rotation through the first transmission disc, the second transmission disc and the transmission belt. With the relative movement of the Λ-shaped roller pressing belt and the V-shaped roller pressing belt, a clamping force similar to gear meshing is formed to ensure stable copper wire biting and continuous traction.

[0032] Rotary roller pressing mechanism: The third geared motor drives the rotating tube to rotate 360° through the transmission belt, which drives the ball bearing to perform full-circumferential rolling straightening of the outer surface of the copper wire. Combined with the traction effect of the first and second connecting discs with gear meshing, the straightening process is made continuous and stable, improving production efficiency.

[0033] 4. Compact structure and integrated functions optimize equipment performance.

[0034] The modular design of the first and second connecting boxes integrates functions such as traction, straightening, and rolling, reducing the risk of deviation in the wire transmission path.

[0035] Auxiliary structures such as guide blocks and top contact plates ensure that the roller pressing belt maintains precise engagement, and the cooperation between ball bearings and comb holes reduces friction between the wire and the equipment, reduces energy consumption, and improves the consistency of straightening quality.

[0036] In summary, this device achieves high-precision and high-efficiency straightening of copper wires through the synergistic effect of multi-stage straightening, adaptive adjustment, high-efficiency transmission, and elastic buffering. It can meet the stringent requirements for wire straightness and surface quality in different production scenarios, and has both practicality and process adaptability. Attached Figure Description

[0037] Figure 1 This is a schematic diagram of the overall structure of the continuous straightening device for copper wire production according to the present invention.

[0038] Figure 2 This is a schematic diagram of the structure of the first connecting box and the second connecting box of the present invention;

[0039] Figure 3 This is a schematic diagram of the structure of the Λ-shaped roller pressing belt of the present invention;

[0040] Figure 4 This is a schematic diagram of the threaded rod and handwheel of the present invention;

[0041] Figure 5 This is a schematic diagram of the V-shaped roller pressing belt of the present invention;

[0042] Figure 6 This is a schematic diagram of the structure of the first and second geared motors of the present invention;

[0043] Figure 7 This is a schematic diagram of the structure of the first connecting disk and the second connecting disk of the present invention;

[0044] Figure 8 This is a schematic diagram of the expansion tube and ball bearing of the present invention.

[0045] In the diagram: 1. First connecting box; 101. Second connecting box; 102. N-shaped frame; 103. Traction groove; 2. Continuous straightening mechanism; 201. Electric push rod; 202. Λ-shaped frame; 203. Threaded rod; 204. Handwheel; 205. Traction block; 206. Λ-shaped roller pressing belt; 207. Second transmission column; 208. V-shaped roller pressing belt; 209. First geared motor; 210. Second geared motor; 211. First transmission column; 212. First transmission disc; 213. Second transmission disc; 214. Λ-shaped disc; 215. Top contact plate; 216. 1. Conveyor belt; 3. Traction roller pressing mechanism; 301. Mounting box; 302. First connecting plate; 303. Second connecting plate; 304. Gear; 305. Third transmission plate; 306. Third geared motor; 307. Fifth transmission plate; 308. Guide groove; 309. Fourth transmission plate; 310. Rotary tube; 311. Bearing seat; 312. Expansion tube; 313. Connecting block; 314. Combing hole; 315. U-shaped frame; 316. Connecting column; 317. Rectangular spring; 318. Ball bearing; 319. Guide block; 320. Sliding groove. Detailed Implementation

[0046] Please see Figures 1-8 This embodiment provides the following technical solution:

[0047] like Figures 1-2 As shown, a continuous straightening device for copper wire production includes: a first connecting box 1, with multiple sets of n-shaped frames 102 fixedly installed on the upper surface of the first connecting box 1, and a continuous straightening mechanism 2 installed inside the multiple sets of n-shaped frames 102, so that the continuous straightening mechanism 2 can draw the continuously produced copper wire into the traction roller pressing mechanism 3. The traction roller pressing mechanism 3 is fixedly installed on the upper surface of a second connecting box 101, and the second connecting box 101 is fixedly installed at one end of the first connecting box 1. The traction roller pressing mechanism 3 can perform 360° roller pressing straightening on the outer surface of the drawn copper wire. By subjecting the copper wire to all-round roller pressing treatment, the copper wire can achieve a straightened state.

[0048] Through the design of the first connecting box 1, the second connecting box 101, the continuous straightening mechanism 2, and the traction roller pressing mechanism 3, in use, the copper wire is placed in the continuous straightening mechanism 2 within multiple sets of n-shaped frames 102 on the first connecting box 1. The continuous straightening mechanism 2 utilizes a unique transmission structure to tightly grip the copper wire and continuously apply pressure to the copper wire through multi-angle pressure coverage. During this process, the pressure from multiple directions works synergistically to accurately correct the straightness of the copper wire, effectively eliminating complex deformation problems such as bending and twisting of the copper wire, thus initially achieving the straightening treatment of the copper wire, and completing the process... The initially straightened copper wire is smoothly drawn by the continuous straightening mechanism 2 into the traction roller pressing mechanism 3 fixed on the upper surface of the second connecting box 101. After the traction roller pressing mechanism 3 is started, it will perform a 360° roller pressing and straightening operation on the outer surface of the copper wire. This all-round roller pressing process can perform secondary fine straightening of the copper wire, leaving no possible small deformation area unchecked, ensuring that the copper wire achieves ideal straightness and surface flatness in all directions, and finally producing high-precision, high-quality straightened copper wire to meet the stringent requirements of copper wire quality in different production scenarios.

[0049] like Figures 3-6 As shown, the continuous straightening mechanism 2 includes a traction block 205 and multiple sets of second transmission columns 207. The traction block 205 is slidably installed in the traction groove 103, which is opened at both ends of the n-shaped frame 102. A first transmission column 211 is rotatably installed between each pair of laterally opposite traction blocks 205. Two sets of conveyor belts 216 are fitted on the outer surface of the multiple sets of first transmission columns 211. A Λ-shaped roller belt 206 is fixedly installed between the two sets of conveyor belts 216 by bolts.

[0050] Multiple sets of second drive columns 207 are rotatably installed in the first connecting box 1 at equal intervals. Each set of second drive columns 207 has two sets of conveyor belts 216 on its outer surface. A V-shaped roller pressing belt 208 is fixed between the two sets of conveyor belts 216 by bolts. The V-shaped groove of the V-shaped roller pressing belt 208 is used to accommodate copper wire. The concave part of the V-shaped roller pressing belt 208 and the protruding part of the Λ-shaped roller pressing belt 206 are in an insertable fit structure. This allows the V-shaped roller pressing belt 208 and the Λ-shaped roller pressing belt 206 to form a meshing and pressure-applying structure for the copper wire. Through the combination design of Λ-shaped and V-shaped, multi-angle pressure coverage can be formed on the outer surface of the copper wire, realizing the correction of the straightness of the copper wire and the elimination of complex deformations such as local bending and torsion.

[0051] One set of first transmission columns 211 is fixedly connected to the output shaft of the first reduction motor 209, while the second transmission column 207 is fixedly connected to the output shaft of the second reduction motor 210. This allows the first reduction motor 209 and the second reduction motor 210 to drive the first transmission columns 211 and the second transmission column 207 to rotate relative to each other. This allows the first transmission columns 211 and the second transmission columns 207 to drive the Λ-shaped roller pressing belt 206 and the V-shaped roller pressing belt 208 fitted on the outer surface to rotate relative to each other, thereby achieving the biting of copper wire.

[0052] Multiple sets of first transmission columns 211 and second transmission columns 207 are each fixedly mounted with a first transmission disc 212 and a second transmission disc 213 at one end. A transmission belt is fitted onto the outer surface of each set of first transmission discs 212 and second transmission discs 213, enabling the multiple sets of first transmission columns 211 and second transmission columns 207 to be synchronously pulled and rotated. A threaded rod 203 is fixedly mounted on the upper surface of each set of traction blocks 205. The upper end of each threaded rod 203 extends from the traction groove 103 to the upper surface of the n-shaped frame 102. Each pair of laterally opposite blocks... A Λ-shaped frame 202 is fixedly installed between the upper surfaces of the threaded rod 203. The lower surface of the center part of the Λ-shaped frame 202 is fixedly connected to the piston rod of the electric push rod 201. The electric push rod 201 is fixedly installed in the n-shaped frame 102, so that the electric push rod 201 can push or pull the traction block 205 to slide up and down in the traction groove 103 through the threaded rod 203. The driven traction block 205 can adjust the depth of the Λ-shaped roller pressing belt 206 fitted on the outer surface of the first transmission column 211 into the V-shaped roller pressing belt 208 through the lifting operation.

[0053] Each set of threaded rods 203 has two sets of handwheels 204 threadedly mounted on its outer surface. These two sets of handwheels 204 can respectively thread-contact the upper and lower surfaces of the n-shaped frame 102 to lock the lifting and lowering of the threaded rods 203. A Λ-shaped disc 214 is fixedly mounted on the middle section of the outer surface of the first transmission column 211. The Λ-shaped disc 214 is driven within the Λ-shaped roller belt 206 to maintain the convex shape of the Λ-shaped roller belt 206.

[0054] Each set of second transmission columns 207 is provided with a top contact plate 215, and the top contact plate 215 located between the second transmission columns 207 simultaneously contacts the inner ring surface of the V-shaped roller pressing belt 208, thereby preventing the V-shaped roller pressing belt 208 from collapsing inward due to the roller pressing of the Λ-shaped roller pressing belt 206.

[0055] Through the design of the electric push rod 201, Λ-shaped frame 202, threaded rod 203, handwheel 204, traction block 205, Λ-shaped roller pressing belt 206, V-shaped roller pressing belt 208, first geared motor 209, and second geared motor 210, in use, the first geared motor 209 and the second geared motor 210 can be started simultaneously to synchronously drive the first transmission column 211 and the second transmission column 207 to rotate relative to each other. The relative rotation of the first transmission column 211 and the second transmission column 207 can be fixedly installed at the other end. The first transmission disc 212 and the second transmission disc 213 are synchronously driven to rotate, thereby enabling multiple sets of first transmission columns 211 and second transmission columns 207 to drive the conveyor belt 216, which is fixedly installed with a Λ-shaped roller pressing belt 206 and a V-shaped roller pressing belt 208 for relative transmission. At this time, the protruding part of the Λ-shaped roller pressing belt 206 is embedded into the concave part of the V-shaped roller pressing belt 208, forming a clamping structure similar to gear meshing. This allows the copper wire to be tightly clamped on the outside of the Λ-shaped roller pressing belt 206 and the V-shaped inner part of the V-shaped roller pressing belt 208. Between the grooves, stable biting and traction are achieved through this bidirectional extrusion friction. At the same time, the electric push rod 201 pushes the Λ-shaped frame 202 through the piston rod, causing the threaded rod 203 and the traction block 205 to slide up and down in the traction groove 103. This allows adjustment of the depth at which the Λ-shaped roller pressing belt 206 presses into the V-shaped roller pressing belt 208, thereby changing the extrusion force on the copper wire to adapt to copper wires of different diameters or hardnesses. After adjustment, the threaded rod 203 can be locked by rotating the handwheel 204, which contacts the upper and lower surfaces of the Λ-shaped frame 102. The lifting and lowering of 3 ensures stable pressure, and the convex shape of the Λ-shaped roller pressing belt 206 is maintained by the Λ-shaped disk 214 on the outer surface of the first transmission column 211. The top contact plate 215 between the second transmission columns 207 contacts the inner ring surface of the V-shaped roller pressing belt 208 to prevent it from being squeezed and collapsing inward. This ensures that the two sets of roller pressing belts always maintain a precise concave-convex interlocking state, so that the copper wire is covered by multi-angle pressure of Λ-shaped and V-shaped combination during the traction process. This not only corrects the straightness, but also eliminates complex deformations such as local bending and torsion, and achieves efficient and continuous straightening.

[0056] like Figures 7-8As shown, the traction roller pressing mechanism 3 includes a mounting box 301 and two sets of bearing seats 311. The mounting box 301 and the bearing seats 311 are both fixedly installed on the upper surface of the second connecting box 101. A first connecting plate 302 and a second connecting plate 303 are rotatably mounted on one end of the mounting box 301. The other ends of the first connecting plate 302 and the second connecting plate 303 both rotate through the mounting box 301 and are fixedly mounted with gears 304 at their ends, which mesh with each other. This allows the first connecting plate 302 and the second connecting plate 303 to rotate relative to each other to achieve the biting and pulling of the copper wire. A third transmission plate 305 is fixedly mounted on one end of the gear 304 of the second connecting plate 303. A transmission belt is also fitted on the outer surface of the third transmission plate 305, and the other end of this transmission belt is fitted on the outer surface of one of the sets of second transmission plates 213. The copper wire bitten by the first connecting plate 302 and the second connecting plate 303 is pulled into the rotating tube 310, which is rotatably mounted between the two sets of bearing seats 311.

[0057] The rotating tube 310 has a fourth transmission disc 309 fixedly mounted on its outer surface. The fourth transmission disc 309 is connected to the fifth transmission disc 307 via a transmission belt. The fifth transmission disc 307 is fixedly mounted on the output shaft of the third reduction motor 306. The third reduction motor 306 is fixedly mounted on the inner bottom surface of the second connecting box 101. The third reduction motor 306 drives the fifth transmission disc 307 to rotate and drives the fourth transmission disc 309 to rotate synchronously via the transmission belt, thereby realizing the 360° circumferential rotation of the rotating tube 310. A connecting block 313 is fixedly mounted inside the rotating tube 310. The connecting block 313 has a comb hole 314 axially connected to the rotating tube 310. The comb hole 314 has a tapered structure that gradually narrows from the inlet to the outlet.

[0058] The outer surface of the rotating tube 310 is connected to expansion tubes 312 at both ends. The inner wall of the expansion tube 312 is evenly distributed with four sets of sliding grooves 320 along the circumference. Each set of sliding grooves 320 is slidably fitted with three sets of U-shaped frames 315. The open end of the U-shaped frame 315 is rotatably mounted with a ball bearing 318 through a bearing. The ball bearings 318 in the four sets of sliding grooves 320 together form a straightening channel for the copper wire to pass through. When the rotating tube 310 drives the expansion tube 312 to rotate, the outer circumferential surface of the ball bearing 318 rolls and contacts the outer surface of the copper wire to form a 360° circumferential rolling structure. Guide blocks 319 are fixed at both ends of the U-shaped frame 315. The guide blocks 319 and the guide grooves 308 opened at both ends of the sliding grooves 320 form a sliding pair. The sliding stroke of the guide blocks 319 along the guide grooves 308 limits the radial movement trajectory of the U-shaped frame 315.

[0059] A connecting column 316 is fixedly installed in the sliding groove 320. The connecting column 316 slides through into the U-shaped frame 315, and a rectangular spring 317 is fitted on the outer surface of the connecting column 316. The two ends of the rectangular spring 317 are fixedly connected between the sliding groove 320 and the U-shaped frame 315, respectively.

[0060] Through the design of the first connecting plate 302, the second connecting plate 303, the gear 304, the third transmission plate 305, the fourth transmission plate 309, the rotating tube 310, the connecting block 313, the comb hole 314; the expansion tube 312, the U-shaped frame 315, the ball bearing 318, the connecting column 316, and the rectangular spring 317, during the process of the second geared motor 210 driving multiple sets of second transmission columns 207 to rotate, one set of second transmission columns 207 can drive the third transmission plate 305 to rotate together through the transmission belt fitted on the outer surface of the second transmission plate 213 at the other end. The third transmission plate 305 can drive one set of gears 304 to rotate, and the rotated gears 304 can mesh with the other end gear 304 to move together. The relative rotation of the two sets of gears 304 allows the first connecting disc 302 and the second connecting disc 303 to rotate relative to each other. The clamping force formed by the relative rotation of the first connecting disc 302 and the second connecting disc 303 can bite into and stably pull the pre-processed copper wire. The pulled copper wire can enter the rotating tube 310 rotatably installed between the two sets of bearing seats 311. During this process, the third reduction motor 306 can be started to drive the rotating tube 310 to rotate continuously 360° through the fifth transmission disc 307, the transmission belt and the fourth transmission disc 309. The conical comb hole 314 of the connecting block 313 inside the rotating tube 310 can guide and reshape the copper wire, ensuring that it stays in place inside the rotating tube 310. The straightness of the tube reduces friction with the tube wall, allowing the copper wire to pass through the gap between the ball bearings 318 again. The ball bearings 318 are slidably mounted in the sliding grooves 320 inside the expansion tube 312 via the U-shaped frame 315. As the rotating tube 310 rotates 360°, the ball bearings 318 rotate due to the contact friction with the copper wire, rolling and pressing the copper wire's outer surface in all directions. The connecting post 316 and the rectangular spring 317 in the sliding groove 320 form an elastic buffer structure. When there is a slight change in the copper wire diameter or vibration caused by the rotation of the rotating tube 310, the rectangular spring 317 allows the U-shaped frame 315 to adaptively extend and retract the ball bearings 318, allowing the ball bearings 318 to... The 18 provides sufficient straightening pressure while preventing damage to the copper wire surface due to excessive pressure. Through this elastic contact and 360° dynamic rolling, the bending and deformation of the copper wire in all directions can be effectively corrected. The final output from the device is a high-precision, straight-line finished copper wire, meeting the stringent requirements of various precision machining processes for wire quality. Furthermore, during the extension and retraction of the U-shaped frame 315 within the sliding groove 320, the U-shaped frame 315, through the cooperation of the guide block 319 and the guide groove 308, can slide stably within the sliding groove 320, ensuring that the ball bearing 318 remains in contact with the copper wire throughout the rolling process, avoiding poor contact or misalignment. It also allows the elastic structure formed by the connecting column 316 and the rectangular spring 317 to...The ball bearing 318 adapts to copper wires of different diameters, providing sufficient straightening pressure while preventing damage to the wire surface due to excessive pressure. Its elastic buffer effectively absorbs vibrations during the rotation of the rotary tube 310, ensuring a smooth rolling process. Ultimately, this achieves efficient and high-precision 360° rolling straightening of the copper wire, producing a finished product with excellent straightness and surface quality. The wire, after being rolled by the ball bearing 318, passes again through the tapered comb hole 314.

[0061] It also includes an intelligent control system, which executes a dynamic roller pressure adaptive algorithm, with a target pressure P. ad Determined by the following equation:

[0062]

[0063] in:

[0064] P ad Adaptive target pressure (MPa);

[0065] σ y Real-time yield strength of copper wire (MPa);

[0066] k: Material strain hardening coefficient (0.1~0.3);

[0067] The cumulative integral of the absolute value of the strain rate of change (s) -1 );

[0068] δ: Measured curvature (mm / m) using a laser micrometer;

[0069] L: Reference length of the straightening zone (m);

[0070] β: Dynamic shape factor (3~8).

[0071] Among them, the rate of change of strain The following process is used to solve the problem:

[0072]

[0073] Where v is the real-time linear velocity of the encoder, v0 is the input reference velocity, and Δt is the sampling interval (10ms).

[0074] The value of the shape factor β follows the following rules:

[0075] Where D is the diameter of the copper wire (mm), and β is saturated at 5 when D≥2mm.

[0076] This equation unifies the modeling of material yield strength, strain history, and geometric deformation. The tanh function enables precise control of small deformations (approximately linear when δ / L≤0.3) and pressure limiting of large deformations (saturation when δ / L>0.3).

[0077] Parameter mapping table

[0078]

[0079] Technical Effect Comparison Table

[0080]

[0081] This equation solves the long-standing problem of compensating for material hardening effects in the field of high-precision straightening by combining the cumulative effect of strain history with geometry-material decoupling design.

[0082] Detailed explanation of the working steps of this equation:

[0083] 1. Data acquisition phase (10ms cycle):

[0084] A laser micrometer scans the surface of the copper wire at a frequency of 50 kHz to calculate the curvature δ per unit length.

[0085] A rotary encoder detects the copper wire transmission speed v and calculates the instantaneous strain. ;

[0086] Differential calculation of strain change rate dε / dt=(ε t -ε t-1 ) / Δt;

[0087] The integrator accumulates the value of |dε / dt| (to record the degree of work hardening);

[0088] 2. Parameter matching stage:

[0089] The material database retrieves the σ_y and k values ​​based on the copper wire type;

[0090] The diameter sensor measures the D value and calculates it. ;

[0091] The reference length L is fixed as the physical length of the straightening zone;

[0092] 3. Equation solution stage:

[0093] Calculate the geometric deformation factor: tanh(β·δ / L);

[0094] When δ / L≤0.3: approximately linear relationship (precise control);

[0095] When δ / L>0.3: the output saturation is 1.0 (overload protection);

[0096] Calculate the material strengthening factor: (1+k·∫|dε / dt|dt);

[0097] Synthetic target pressure: P_ad = σ_y × strengthening factor × deformation factor;

[0098] 4. Actions of the executing agency:

[0099] The servo driver converts P_ad into displacement (proportional factor 0.014mm / MPa).

[0100] The electric push rod adjusts the pressing depth of the Λ-shaped roller;

[0101] The pressure sensor verifies the actual pressure value in real time.

[0102] 5. Quality closed-loop feedback:

[0103] After straightening, the copper wire passes through the laser micrometer again;

[0104] The new δ value is fed back to the control system;

[0105] When δ > the threshold, the integration weight k is automatically increased.

[0106] Speed ​​reduction protection is triggered when ∫|dε / dt|dt>5.

[0107] Based on the above technical solution, the working steps of this solution are summarized as follows: When straightening copper wire, the first reduction motor 209 and the second reduction motor 210 can be started to synchronously drive the first transmission column 211 and the second transmission column 207 to rotate relative to each other. The relatively rotating first transmission column 211 and the second transmission column 207 can be synchronously driven to rotate through the first transmission disk 212 and the second transmission disk 213 fixedly installed at the other end. In this way, multiple sets of first transmission columns 211 and second transmission columns 207 can drive the conveyor belt 216 to be fixedly installed with Λ-shaped roller pressing belt 206 and V-shaped roller pressing belt 208 for relative transmission. At this time, the protruding part of the Λ-shaped roller pressing belt 206 is embedded in the concave part of the V-shaped roller pressing belt 208, forming a clamping structure similar to gear meshing. This can tightly clamp the copper wire between the outer side of the Λ-shaped roller pressing belt 206 and the V-shaped inner groove of the V-shaped roller pressing belt 208. Stable biting and traction are achieved through this bidirectional extrusion friction.

[0108] Simultaneously, the electric push rod 201, through the piston rod, pushes the Λ-shaped frame 202, causing the threaded rod 203 and the traction block 205 to slide up and down within the traction groove 103. This adjusts the depth at which the Λ-shaped roller pressing belt 206 presses into the V-shaped roller pressing belt 208, thereby changing the extrusion pressure on the copper wire to accommodate copper wires of different diameters or hardnesses. After adjustment, the threaded rod 203 can be locked by rotating the handwheel 204, which contacts the upper and lower surfaces of the Λ-shaped frame 102, ensuring stable pressure. Furthermore, the convex shape of the Λ-shaped roller pressing belt 206 is maintained by the Λ-shaped disk 214 on the outer surface of the first transmission column 211, and the top contact plate 215 between the second transmission columns 207 contacts the inner ring surface of the V-shaped roller pressing belt 208 to prevent it from being squeezed and collapsing inward. This ensures that the two sets of roller pressing belts always maintain a precise concave-convex interlocking state, so that the copper wire is covered by multi-angle pressure of Λ-shaped and V-shaped combination during the traction process. This not only corrects the straightness, but also eliminates complex deformations such as local bending and torsion, and achieves efficient and continuous straightening.

[0109] During the rotation of multiple sets of second transmission columns 207 driven by the second reduction motor 210, one set of second transmission columns 207 can drive a third transmission disk 305 to rotate via a transmission belt fitted on the outer surface of the second transmission disk 213 at the other end. The third transmission disk 305 can drive one set of gears 304 to rotate, and the driven gears 304 can mesh with the other gear 304 to rotate relative to each other. Thus, the two sets of gears 304 can drive the first connecting disk 302 and the second connecting disk 303 to rotate relative to each other. The clamping force formed by the receiving plate 302 and the second connecting plate 303 can bite into and stably pull the pre-processed copper wire. The pulled copper wire can enter the rotating tube 310 rotatably installed between the two sets of bearing seats 311. During this process, the third reduction motor 306 can be started together to drive the rotating tube 310 to rotate continuously 360° through the fifth transmission plate 307, the transmission belt and the fourth transmission plate 309. The tapered comb hole 314 of the connecting block 313 inside the rotating tube 310 can guide and reshape the copper wire that passes through, ensuring that it is centered and straight in the rotating tube 310, reducing friction with the tube wall.

[0110] The copper wire can then be inserted and exited again through the gap between the ball bearings 318. The ball bearings 318 are slidably mounted in the sliding grooves 320 opened in the expansion tube 312 via the U-shaped bracket 315. As the rotating tube 310 continues to rotate 360°, the ball bearings 318 can be driven to rotate by the contact friction with the copper wire, allowing them to roll and press the copper wire in all directions. The connecting post 316 and the rectangular spring 317 in the sliding groove 320 form an elastic buffer structure. When the copper wire... When there are slight changes in the wire diameter or vibrations caused by the rotation of the tube 310, the rectangular spring 317 allows the U-shaped frame 315 to drive the ball bearing 318 to adaptively extend and retract. This ensures that the ball bearing 318 can provide sufficient straightening pressure while preventing damage to the copper wire surface due to excessive pressure. Through this elastic contact and 360° dynamic rolling, the bending and deformation of the copper wire in all directions can be effectively corrected. The rolling pressure from the ball bearing 318 will then be discharged again through the tapered comb hole 314, producing high-precision straightened copper wire.

[0111] In summary, this continuous straightening device for copper wire production applies continuous pressure to the copper wire through multi-angle pressure coverage during the straightening process. The synergistic effect of pressure from multiple directions precisely corrects the straightness of the copper wire, effectively eliminating complex deformation problems such as bending and twisting, thus achieving initial straightening. The initially straightened copper wire is then bitten by the continuous straightening mechanism 2 and subjected to 360° roller straightening on its outer surface. This comprehensive roller straightening process allows for secondary fine straightening of the copper wire, resulting in high-precision, high-quality straightened copper wire.

[0112] All parts not described in this invention are the same as or can be implemented using existing technology. Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A continuous straightening device for copper wire production, characterized in that, include: The first connecting box (1) has multiple sets of n-shaped frames (102) fixedly installed on its upper surface. The multiple sets of n-shaped frames (102) are equipped with a continuous straightening mechanism (2) so that the continuous straightening mechanism (2) can pull the continuously produced copper wire into the traction roller pressing mechanism (3). The traction roller pressing mechanism (3) is fixedly installed on the upper surface of the second connecting box (101). The second connecting box (101) is fixedly installed at one end of the first connecting box (1). The traction roller pressing mechanism (3) can perform 360° roller pressing straightening on the outer surface of the pulled copper wire. By making the copper wire undergo all-round roller pressing treatment, the copper wire can achieve a straightened state. The continuous straightening mechanism (2) includes a traction block (205) and multiple sets of second transmission columns (207). The traction block (205) is slidably installed in the traction groove (103). The traction groove (103) is opened at both ends of the n-shaped frame (102). A first transmission column (211) is rotatably installed between each pair of laterally opposite traction blocks (205). Two sets of conveyor belts (216) are fitted on the outer surface of the multiple sets of first transmission columns (211). A Λ-shaped roller belt (206) is fixedly installed between the two sets of conveyor belts (216) by bolts. In this configuration, multiple sets of second transmission columns (207) are rotatably installed in the first connecting box (1) at equal intervals. Each set of second transmission columns (207) has two sets of conveyor belts (216) fitted on its outer surface. A V-shaped roller pressing belt (208) is fixedly installed between the two sets of conveyor belts (216) by bolts. The V-shaped groove of the V-shaped roller pressing belt (208) is used to accommodate copper wires. The concave part of the V-shaped roller pressing belt (208) and the protruding part of the Λ-shaped roller pressing belt (206) form an insertable fit structure, so that the V-shaped roller pressing belt (208) and the Λ-shaped roller pressing belt (206) form a biting and pressing structure for applying pressure to the copper wires. One set of the first transmission column (211) is fixedly connected to the output shaft of the first geared motor (209), while the second transmission column (207) is fixedly connected to the output shaft of the second geared motor (210). This allows the first geared motor (209) and the second geared motor (210) to drive the first transmission column (211) and the second transmission column (207) to rotate relative to each other. This allows the first transmission column (211) and the second transmission column (207) to drive the Λ-shaped roller pressing belt (206) and the V-shaped roller pressing belt (208) fitted on the outer surface to rotate relative to each other, so that they can bite into the copper wire. One end of each of the multiple sets of first transmission columns (211) and second transmission columns (207) is fixedly mounted with a first transmission disc (212) and a second transmission disc (213). The outer surfaces of the multiple sets of first transmission discs (212) and second transmission discs (213) are fitted with transmission belts, so that the multiple sets of first transmission columns (211) and second transmission columns (207) can be synchronously pulled and rotated. A Λ-shaped disk (214) is fixedly installed on the middle section of the outer surface of the first transmission column (211). The Λ-shaped disk (214) is driven in the Λ-shaped roller belt (206) to maintain the convex shape of the Λ-shaped roller belt (206). Each of the second transmission columns (207) is provided with a top contact plate (215), and the top contact plate (215) located between the second transmission columns (207) simultaneously contacts the inner ring surface of the V-shaped roller pressing belt (208), thereby preventing the V-shaped roller pressing belt (208) from collapsing inward due to the roller pressing of the Λ-shaped roller pressing belt (206).

2. The continuous straightening device for copper wire production according to claim 1, characterized in that: A threaded rod (203) is fixedly installed on the upper surface of each of the multiple sets of traction blocks (205). The upper end of the threaded rod (203) extends from the traction groove (103) to the upper surface of the n-shaped frame (102). A Λ-shaped frame (202) is fixedly installed between the upper surfaces of each pair of horizontally opposite threaded rods (203). The lower surface of the center part of the Λ-shaped frame (202) is fixedly connected to the piston rod of the electric push rod (201). The electric push rod (201) is fixedly installed in the n-shaped frame (102), so that the electric push rod (201) can push or pull the traction block (205) to slide up and down in the traction groove (103) through the threaded rod (203). The driven traction block (205) can adjust the depth of the Λ-shaped roller belt (206) fitted on the outer surface of the first transmission column (211) into the V-shaped roller belt (208) through the lifting operation. Each set of threaded rods (203) has two sets of handwheels (204) threadedly installed on its outer surface. These two sets of handwheels (204) can respectively thread onto the upper and lower surfaces of the n-shaped frame (102) to lock the lifting and lowering of the threaded rods (203).

3. The continuous straightening device for copper wire production according to claim 1, characterized in that: The traction roller pressing mechanism (3) includes a mounting box (301) and two sets of bearing seats (311). The mounting box (301) and the bearing seats (311) are both fixedly installed on the upper surface of the second connecting box (101). A first connecting plate (302) and a second connecting plate (303) are rotatably mounted on one end of the mounting box (301). The other ends of the first connecting plate (302) and the second connecting plate (303) both pass through the mounting box (301) and are fixedly mounted with gears (304) at their ends, which mesh with each other, so that the first connecting plate (302) and the second connecting plate (303) can be connected. The receiving disc (303) also rotates relative to each other to achieve the biting and pulling of the copper wire. The gear (304) of the second connecting disc (303) is fixedly installed with a third transmission disc (305). The outer surface of the third transmission disc (305) is also fitted with a transmission belt, and one end of the transmission belt is fitted on the outer surface of one of the second transmission discs (213). The copper wire bitten by the first connecting disc (302) and the second connecting disc (303) will be pulled into the rotating tube (310). The rotating tube (310) is rotatably installed between two sets of bearing seats (311).

4. The continuous straightening device for copper wire production according to claim 3, characterized in that: The outer surface of the rotating tube (310) is fixedly provided with a fourth transmission disk (309), which is connected to the fifth transmission disk (307) via a transmission belt. The fifth transmission disk (307) is fixedly mounted on the output shaft of the third reduction motor (306), which is fixedly installed on the inner bottom surface of the second connecting box (101). The third reduction motor (306) drives the fifth transmission disk (307) to rotate and drives the fourth transmission disk (309) to rotate synchronously via the transmission belt, thereby realizing the 360° circumferential rotation of the rotating tube (310). A connecting block (313) is fixedly provided inside the rotating tube (310). The connecting block (313) is axially provided with a comb hole (314) communicating with the rotating tube (310). The comb hole (314) has a tapered structure that gradually narrows from the inlet to the outlet.

5. A continuous straightening device for copper wire production according to claim 4, characterized in that: The outer surfaces of the rotating tube (310) are respectively connected to expansion tubes (312). The inner walls of the expansion tubes (312) are evenly distributed with four sets of sliding grooves (320) along the circumference. Each set of sliding grooves (320) is slidably fitted with three sets of U-shaped frames (315). The open ends of the U-shaped frames (315) are rotatably fitted with ball bearings (318) through bearings. The ball bearings (318) in the four sets of sliding grooves (320) together form a straightening channel for copper wires to pass through. The rotating tube (310) When the expansion tube (312) is rotated, the outer circumferential surface of the ball bearing (318) rolls and contacts the outer surface of the copper wire to form a 360° circumferential rolling structure. Guide blocks (319) are fixed at both ends of the U-shaped frame (315). The guide blocks (319) and the guide grooves (308) opened at both ends of the sliding groove (320) form a sliding pair. The sliding stroke of the guide blocks (319) along the guide grooves (308) limits the radial movement trajectory of the U-shaped frame (315).

6. A continuous straightening device for copper wire production according to claim 5, characterized in that: A connecting column (316) is fixedly installed in the sliding groove (320). The connecting column (316) slides through the U-shaped frame (315), and a rectangular spring (317) is fitted on the outer surface of the connecting column (316). The two ends of the rectangular spring (317) are fixedly connected between the sliding groove (320) and the U-shaped frame (315).

Images