A flat copper wire straightening device

Abstract

This invention relates to the field of copper manufacturing and processing technology, specifically a flat copper wire straightening device. It includes a worktable with legs fixed at the corners of its bottom surface, and a feeding mechanism, a longitudinal straightening mechanism, a transverse straightening mechanism, and a stress-relief mechanism sequentially installed on the top surface of the worktable. The stress-relief mechanism includes a housing fixed to the worktable, with a heat insulation plate in the middle and aligned inlets and outlets at both ends. The heat insulation plate has through slots. An oil cooler and a control module are mounted on the top surface of the housing. An infrared thermometer electrically connected to the control module is mounted near the inlet side of the heat insulation plate. The housing contains a first and a second stress-relief mechanism, forming a cooling oil circulation loop. This invention eliminates internal stress in the flat copper wire through eddy current heating of the first stress-relief mechanism combined with flexible pressure-holding cooling of the second stress-relief mechanism, preventing secondary springback, improving straightness stability, and meeting the requirements of high-precision motor winding processing.

Description

Technical Field

[0001] This invention relates to the field of copper manufacturing and processing technology, specifically a flat copper wire straightening device. Background Technology

[0002] Flat copper wire is characterized by high conductivity, high current carrying capacity, and high space utilization, and is widely used in power equipment fields such as motor windings for new energy vehicles, transformer coils, and reactors. During the production and processing of flat copper wire, the wire is prone to bending due to rolling, winding, and transportation processes. If directly used for subsequent winding, this can lead to uneven interlayer gaps and decreased insulation performance. Therefore, straightening treatment is necessary to ensure that its straightness and cross-sectional flatness meet processing requirements.

[0003] Currently, most mainstream flat copper wire straightening equipment in the industry adopts a multi-roller straightening structure, specifically including: a feed roller group for conveying the wire, an alternating straightening roller group for correcting longitudinal bending, and a symmetrical side roller group for correcting lateral bending. While this type of equipment can achieve basic shape correction, it still has the following shortcomings:

[0004] When flat copper wire is straightened, it is subjected to the squeezing and friction of rollers, which generates elastic internal stress. If it is not eliminated in time, the wire will rebound again during subsequent storage or processing due to the release of internal stress, resulting in a further decrease in straightness. At the same time, some equipment increases the squeezing force of the rollers on the flat copper wire in order to improve the straightening effect, which will aggravate the accumulation of internal stress. Summary of the Invention

[0005] The purpose of this invention is to provide a flat copper wire straightening device to solve the problems mentioned in the background art.

[0006] The objective of this invention can be achieved through the following technical solutions:

[0007] A flat copper wire straightening device includes a workbench, wherein the bottom surface of the workbench is fixedly equipped with legs near the corners; and further includes:

[0008] The feeding mechanism is fixedly installed on the top surface of the worktable near the inlet end;

[0009] The longitudinal straightening mechanism is fixedly installed on the top surface of the workbench and is located on the side of the feeding mechanism away from the feeding end of the workbench;

[0010] A transverse straightening mechanism is fixedly installed on the top surface of the workbench and located on the side of the longitudinal straightening mechanism away from the feeding mechanism;

[0011] A stress-relieving mechanism is fixedly installed on the top surface of the workbench and located on the side of the transverse straightening mechanism away from the longitudinal straightening mechanism. The stress-relieving mechanism includes:

[0012] A box is fixedly installed on the top surface of the workbench. A heat insulation plate is fixedly installed in the middle of the box. An inlet is provided at one end of the box near the transverse straightening mechanism, and an outlet aligned with the inlet is provided at the other end. A through groove aligned with the outlet is provided on the side of the heat insulation plate. An oil cooler and a control module are fixedly installed on the top surface of the box. An infrared thermometer electrically connected to the control module is installed on the side of the heat insulation plate near the inlet. A first stress relief mechanism is provided between the heat insulation plate and the inlet in the box, and a second stress relief mechanism is provided between the outlet and the heat insulation plate. A cooling oil circulation loop is formed between the first stress relief mechanism, the second stress relief mechanism, and the oil cooler.

[0013] Furthermore, the first stress relief mechanism includes a mounting cylinder fixedly installed on the inner end face of the housing near the inlet. The mounting cylinder is aligned with the inlet, and a coil is coaxially fixedly installed in the mounting cylinder. Both ends of the coil pass through the mounting cylinder and the housing in sequence to the top of the housing and are electrically connected to the control module.

[0014] The coil has a hollow structure, and plastic pipe joints are fixedly installed through the coil near both ends. One of the pipe joints is fixedly connected to the oil return port of the oil cooler by a conduit.

[0015] Furthermore, the second stress relief mechanism includes four hollow square columns arranged in a rectangular shape. The bottom ends of the two lower hollow square columns are fixedly connected to the inner bottom surface of the box, and the top surfaces of the two upper support columns are fixedly connected to a U-shaped lifting plate. A pressure application component is fixedly connected between the U-shaped lifting plate and the top surface of the box.

[0016] Multiple elastic polyurethane rollers are rotatably installed between the two hollow square columns above and below, arranged in an array along the length of the hollow square columns. The elastic polyurethane rollers are hollow, and their two ends are connected to the hollow square columns at the corresponding positions.

[0017] A tee connector 2 is provided between the ends of the two hollow square columns on one side. One end of the tee connector 2 is fixedly connected to a conduit 2. The end of the conduit 2 away from the tee connector 2 is connected to the oil outlet of the oil cooler. The other two ends of the tee connector 2 are fixedly connected to flexible telescopic pipes 2. The ends of the two flexible telescopic pipes 2 away from the tee connector 2 are respectively fixedly connected to the two hollow square columns at their ends in a through-type connection.

[0018] On the other side, a T-connector 1 is provided between the two hollow square columns at the ends away from the T-connector 2. One end of the T-connector 1 is fixedly connected to a conduit 1. The end of the conduit 1 away from the T-connector 1 passes through the box and is connected to the coil through another plastic tube connector. Both other ends of the T-connector 1 are fixedly connected to flexible telescopic tubes 1. The ends of the two flexible telescopic tubes 1 away from the T-connector 1 are respectively fixedly connected to the two hollow square columns at the end positions.

[0019] Furthermore, the pressure application component includes a U-shaped hanging plate fixedly installed on the top surface of the box body. An electric push rod is fixedly installed at the bottom center of the U-shaped hanging plate. The telescopic end of the electric push rod slides through the U-shaped hanging plate and is fixedly connected to the top surface of the U-shaped lifting plate. Limiting rods are slidably installed through the bottom of the U-shaped hanging plate near the corners. The bottom end of the limiting rod is fixedly connected to the top surface of the U-shaped lifting plate.

[0020] Furthermore, two symmetrically arranged strips are fixedly connected to the side of the box near the outlet. Two rollers are rotatably installed between the two strips, and a conveyor belt is installed between the two rollers. The top surface of the conveyor belt is flush with the highest point of the outer periphery of the elastic polyurethane roller below. A motor is fixedly installed on the outer side of one of the strips. The roller at the corresponding position rotates through the strip and is fixedly connected to the output shaft end of the motor.

[0021] Limiting guide posts are fixedly installed on the top surface of the first strip near both ends. A second strip is provided above the first strip and is slidably connected to the two limiting guide posts. A U-shaped connecting plate is fixedly connected between the top surfaces of the two second strips. A mounting seat is fixedly installed on the side of the box above the U-shaped connecting plate. An electric push rod is fixedly installed on the top surface of the mounting seat and is located directly above the U-shaped connecting plate. The telescopic end of the electric push rod slides through the mounting seat and is fixedly connected to the U-shaped connecting plate.

[0022] Two rollers are also rotatably mounted between the two strips, and a conveyor belt is installed between the two rollers.

[0023] Furthermore, the feeding mechanism includes two vertical plates fixedly installed on the top surface of the workbench, and a connecting plate is fixedly connected between the top ends of the two vertical plates. A groove is formed on the inner side of the vertical plates near the top, and a slider is slidably installed in the groove. A feeding roller is rotatably installed between the two sliders, and a lifting plate is fixedly installed between the top ends of the two sliders. A screw is rotatably connected to the center of the top surface of the lifting plate, and the top end of the screw threaded through the connecting plate to the top of the connecting plate. A knob is fixedly installed at the top end of the screw.

[0024] A lower feed roller is rotatably mounted between two vertical plates, located directly below the upper feed roller. A motor is fixedly mounted on the outer side of one vertical plate. The end of the lower feed roller near the motor rotates through the vertical plate and is fixedly connected to the output shaft end of the motor.

[0025] The connecting plate has protrusions fixedly installed at both ends on the side near the longitudinal straightening mechanism. A slide rod is fixedly connected between the two protrusions, and a bidirectional lead screw is rotatably connected between the two protrusions. A knob is fixedly installed at one end of the bidirectional lead screw after it rotatably passes through the protrusion. Two symmetrically distributed slide seats are installed on the periphery of the bidirectional lead screw with a through thread. The slide seats and the slide rod are slidably connected through the slide. A vertically set limiting roller is rotatably connected to the bottom surface of the slide seat at the end away from the connecting plate.

[0026] The upper feed roller, lower feed roller, and limiting roller are all surrounded by a rubber layer;

[0027] The highest point of the outer periphery of the lower feed roller is level with the highest point of the outer periphery of the lower elastic polyurethane roller.

[0028] Furthermore, the longitudinal straightening mechanism includes a mounting strip fixedly installed on the top surface of the workbench. Multiple lower wheels are rotatably mounted on the side of the mounting strip, which are arranged in an array along its length. The highest point of the outer periphery of the lower wheels is flush with the highest point of the outer periphery of the lower elastic polyurethane roller.

[0029] The top surface of the first mounting strip is fixedly installed with sliding columns at both ends. A lifting strip is provided above the first mounting strip and is slidably connected to the two sliding columns. Multiple upper wheels are rotatably installed on the side of the lifting strip, which are arranged in an array along the length of the lifting strip. The multiple upper wheels and multiple lower wheels are staggered.

[0030] A connecting strip is fixedly connected between the top ends of the two sliding columns. A screw rod is threaded through the center of the top surface of the connecting strip. The bottom end of the screw rod is rotatably connected to the top surface of the sliding column. A knob is fixedly installed at the top end of the screw rod.

[0031] Furthermore, the transverse straightening mechanism includes a base plate fixedly installed on the top surface of the workbench. The top surface of the base plate is provided with side plates on both sides. A two-way lead screw is rotatably installed between the middle positions of the two side plates. One end of the two-way lead screw rotates through the side plate and is fixedly installed with a knob. A guide rod is fixedly installed between the ends of the two base plates.

[0032] The outer periphery of the bidirectional lead screw has two horizontally arranged mounting strips, which are slidably connected to the two guide rods.

[0033] The top surface of the second mounting strip is rotatably mounted with multiple side wheels arranged in an array along its length.

[0034] The highest point of the outer periphery of the lower elastic polyurethane roller is located between the top and bottom surfaces of the side roller.

[0035] Furthermore, multiple support columns are arrayed on the top surface of the base plate along its length midline, and ball bearings are embedded at the top of the support columns. The highest point of the ball bearing spherical surface is flush with the highest point of the outer periphery of the lower elastic polyurethane roller.

[0036] The beneficial effects of this invention are:

[0037] 1. In the stress relief mechanism of the present invention, the internal stress is relieved by combining the eddy current heating of the first stress relief mechanism with the flexible pressure holding and cooling of the second stress relief mechanism. This effectively avoids secondary springback of the wire, improves the straightness stability of the flat copper wire, and meets the requirements of high-precision motor winding processing.

[0038] 2. In this invention, the cooling oil output from the oil cooler first flows through the second stress relief mechanism to achieve cooling and pressure holding of the line, and then flows through the hollow coil to achieve coil heat dissipation, forming a "one line for multiple uses" circulation system. Compared with traditional equipment that sets up cooling and heat dissipation devices separately, energy consumption is reduced and the structural compactness of the equipment is also improved.

[0039] 3. In this invention, the screw of the feeding mechanism, the screw of the longitudinal straightening mechanism, the bidirectional lead screw of the transverse straightening mechanism, and the electric push rod of the second stress relief mechanism can all achieve stepless parameter adjustment, adapting to flat copper wires of different sizes without replacing parts, improving the efficiency of changeover operations and meeting the needs of multi-variety production. Attached Figure Description

[0040] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, for those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0041] Figure 1 This is a three-dimensional schematic diagram of the overall structure of the present invention;

[0042] Figure 2 This is a three-dimensional schematic diagram of the feeding mechanism in this invention;

[0043] Figure 3 yes Figure 2 A three-dimensional diagram from another angle;

[0044] Figure 4 This is a three-dimensional schematic diagram of the longitudinal straightening mechanism in this invention;

[0045] Figure 5 This is a three-dimensional schematic diagram of the lateral straightening mechanism in this invention;

[0046] Figure 6 This is a three-dimensional schematic diagram of the stress relief mechanism in this invention;

[0047] Figure 7 yes Figure 6 A three-dimensional diagram from another angle;

[0048] Figure 8 This is a schematic diagram of the internal structure of the box in this invention;

[0049] Figure 9 yes Figure 8 Enlarged view of section A;

[0050] Figure 10 This is a three-dimensional schematic diagram of the second stress relief component in this invention;

[0051] The attached figures are labeled as follows:

[0052] 1-Workbench, 2-Support leg, 3-Feeding mechanism, 4-Longitudinal straightening mechanism, 5-Transverse straightening mechanism, 6-Stress relief mechanism, 7-Upright plate, 8-Connecting plate, 9-Slide groove, 10-Slider, 11-Lifting plate, 12-Screw one, 13-Knob one, 14-Upper feed roller, 15-Lower feed roller, 16-Rubber layer, 17-Motor one, 18-Protrusion, 19-Knob two, 20-Double-direction screw one, 21-Slide seat, 22-Limiting roller, 23-Mounting strip one, 24-Sliding column, 25-Connecting strip, 26-Lifting strip, 27-Lower wheel, 28-Upper wheel, 29-Screw two, 30-Knob three, 31-Guide rod, 32-Mounting strip two, 33-Side wheel, 34-Double-direction screw two, 35-Knob four, 36-Support column, 37-Box body, 38-Inlet, 3 9-Exit, 40-Oil Cooler, 41-Strip Plate 1, 42-Motor 2, 43-Limiting Guide Post, 44-Roller, 45-Conveyor Belt, 46-Strip Plate 2, 47-U-shaped Connecting Plate, 48-Mounting Base, 49-Electric Push Rod 1, 50-Mounting Cylinder, 51-Coil, 52-Through Slot, 53-Infrared Thermometer, 54-Insulation Board, 55-Control Module, 56-Conduit 1, 57-Conduit 2, 58-Second Stress Relief Component, 59-Conduit 3, 60-Hollow Square Column, 61-Support Rod, 62-Elastic Polyurethane Roller, 63-Tee Connector 1, 64-Flexible Telescopic Tube 1, 65-Flexible Telescopic Tube 2, 66-Tee Connector 2, 67-U-shaped Lifting Plate, 68-Electric Push Rod 2, 69-U-shaped Hanging Plate, 70-Limiting Rod, 71-Base Plate, 72-Side Plate. Detailed Implementation

[0053] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0054] Example 1:

[0055] Please see Figure 1 and 6 ~ Figure 8 In this embodiment of the invention, a flat copper wire straightening device includes a workbench 1, with support legs 2 fixedly installed on the bottom surface of the workbench 1 near the corners; it also includes:

[0056] The feeding mechanism 3 is fixedly installed on the top surface of the workbench 1 near the inlet end;

[0057] The longitudinal straightening mechanism 4 is fixedly installed on the top surface of the workbench 1 and is located on the side of the feeding mechanism 3 away from the feeding end of the workbench 1;

[0058] The transverse straightening mechanism 5 is fixedly installed on the top surface of the workbench 1 and is located on the side of the longitudinal straightening mechanism 4 away from the feeding mechanism 3.

[0059] And a stress relief mechanism 6, fixedly installed on the top surface of the workbench 1, and located on the side of the transverse straightening mechanism 5 away from the longitudinal straightening mechanism 4. The stress relief mechanism 6 includes:

[0060] A housing 37 is fixedly installed on the top surface of the workbench 1. A heat insulation plate 54 is fixedly installed in the middle of the housing 37. An inlet 38 is provided at one end of the housing 37 near the transverse straightening mechanism 5, and an outlet 39 aligned with the inlet 38 is provided at the other end. A through groove 52 aligned with the outlet 39 is provided on the side of the heat insulation plate 54. An oil cooler 40 and a control module 55 are fixedly installed on the top surface of the housing 37. An infrared thermometer 53 electrically connected to the control module 55 is installed on the side of the heat insulation plate 54 near the inlet 38. A first stress relief mechanism is provided between the heat insulation plate 54 and the inlet 38 in the housing 37, and a second stress relief mechanism 58 is provided between the outlet 39 and the heat insulation plate 54. A cooling oil circulation loop is formed between the first stress relief mechanism, the second stress relief mechanism 58, and the oil cooler 40.

[0061] The flat copper wire passes through the feeding mechanism 3, the longitudinal straightening mechanism 4, the transverse straightening mechanism 5, and the stress relief mechanism 6 in sequence to complete the entire process.

[0062] In the stress relief mechanism 6, the first stress relief mechanism heats the wire body through the eddy current effect of the coil 51 to release internal stress, and the second stress relief mechanism 58 further stabilizes the shape of the wire body through the mechanical pressure holding of the elastic polyurethane roller 62. At the same time, the oil cooler 40 and the cooling oil circulation loop realize the cooling of the heated wire body and the heat dissipation of the coil 51.

[0063] Therefore, the present invention, through the setting of feeding mechanism 3, longitudinal straightening mechanism 4, transverse straightening mechanism 5 and stress relief mechanism 6, realizes the integrated processing of guiding, straightening and stress relief of flat copper wire, solves the problem of existing equipment only straightening without stress relief, effectively avoids secondary springback of the wire, and significantly improves the stability of the straightness of the copper wire.

[0064] The oil cooler 40 utilizes mature industrial-grade cooling equipment, such as the commonly available "air-cooled oil cooler" or "water-cooled oil cooler." Its working principle is based on "compressor refrigeration + heat exchanger heat exchange." A built-in temperature sensor collects the cooling oil temperature in real time, and a controller adjusts the cooling power to stabilize the cooling oil temperature within a set range. This technology is widely used in machining, electronic equipment heat dissipation, and other fields, and is considered existing technology. In the stress relief mechanism 6 of this invention, the oil cooler 40 provides a temperature-controllable cooling medium for the cooling oil circulation loop; its specific structure remains unchanged.

[0065] Example 2:

[0066] Please see Figure 8 and Figure 9 Based on Embodiment 1, the first stress relief mechanism includes a mounting cylinder 50 fixedly installed on the inner end face of the housing 37 near the inlet 38. The mounting cylinder 50 is aligned with the inlet 38. A coil 51 is coaxially fixedly installed in the mounting cylinder 50. Both ends of the coil 51 pass through the mounting cylinder 50 and the housing 37 in sequence to the top of the housing 37 and are electrically connected to the control module 55.

[0067] The coil 51 has a hollow structure. Plastic pipe joints are fixedly installed through the coil 51 near both ends. One of the pipe joints is fixedly connected to the oil return port of the oil cooler 40 by a conduit 3 59.

[0068] The control module 55 supplies alternating current to the hollow coil 51, which generates an alternating magnetic field. The flat copper wire passing through the coil 51 heats up due to the eddy current effect, thus releasing the internal stress.

[0069] Infrared thermometer 53 detects the surface temperature of the line in real time and feeds the data back to control module 55. Control module 55 adjusts the AC power to stabilize the line temperature in a suitable temperature range, such as 250-300℃ (the optimal stress relief temperature range for copper).

[0070] Meanwhile, the cooling oil output from the oil cooler 40 flows into the coil 51 through the second stress relief mechanism 58 and then through the first conduit 56 to absorb the heat generated when the coil 51 is working. It then flows back to the oil cooler 40 through the third conduit 59 to form a cooling cycle.

[0071] In this embodiment, the first stress relief mechanism adopts eddy current heating to achieve non-contact heating of the wire body, avoiding scratches on the wire body surface caused by traditional contact heating. Through the closed-loop control of the control module 55 and the infrared thermometer 53, the heating temperature can be precisely adjusted to avoid excessively high temperature leading to coarse wire grains or excessively low temperature leading to incomplete stress relief.

[0072] A cooling oil circuit is established through the hollow coil 51, which simultaneously heats the wire and dissipates heat from the coil, thus extending the service life of the coil 51.

[0073] Example 3:

[0074] Please see Figures 8-10 Based on embodiment 2, the second stress relief mechanism 58 includes four hollow square columns 60 arranged in a rectangular shape. The bottom ends of the two lower hollow square columns 60 are fixedly connected to the inner bottom surface of the box 37 with support rods 61. The top surfaces of the two upper support rods 61 are fixedly connected with U-shaped lifting plates 67. A pressure application component is fixedly connected between the U-shaped lifting plates 67 and the top surface of the box 37.

[0075] Multiple elastic polyurethane rollers 62 are rotatably installed between the two hollow square columns 60 above and below, arranged in an array along the length of the hollow square columns 60. The elastic polyurethane rollers 62 are hollow, and their two ends are connected to the hollow square columns 60 at the corresponding positions.

[0076] A tee connector 2 66 is provided between the ends of the two hollow square columns 60 on one side. One end of the tee connector 2 66 is fixedly connected to a conduit 2 57. The end of the conduit 2 57 away from the tee connector 2 66 is connected to the oil outlet of the oil cooler 40. Flexible telescopic tubes 2 65 are fixedly connected to both ends of the tee connector 2 66. The ends of the two flexible telescopic tubes 2 65 away from the tee connector 2 66 are respectively fixedly connected to the two hollow square columns 60 at their ends in a through-type connection.

[0077] On the other side, a T-joint 63 is provided between the two hollow square columns 60 at the ends away from the T-joint 66. A conduit 56 is fixedly connected to one end of the T-joint 63. The end of the conduit 56 away from the T-joint 63 passes through the housing 37 and is connected to the coil 51 through another plastic tube connector. Flexible telescopic tubes 64 are fixedly connected to both ends of the T-joint 63. The ends of the two flexible telescopic tubes 64 away from the T-joint 63 are respectively fixedly connected to the two hollow square columns 60 at the end positions.

[0078] The pressure application assembly includes a U-shaped hanging plate 69 fixedly installed on the top surface of the housing 37. An electric push rod 68 is fixedly installed at the bottom center of the U-shaped hanging plate 69. The telescopic end of the electric push rod 68 slides through the U-shaped hanging plate 69 and is fixedly connected to the top surface of the U-shaped lifting plate 67. Limiting rods 70 are slidably installed through the bottom of the U-shaped hanging plate 69 near the corner. The bottom end of the limiting rods 70 is fixedly connected to the top surface of the U-shaped lifting plate 67.

[0079] The flat copper wire passes between four hollow square columns 60 arranged in a rectangular pattern. The control module 55 drives the electric push rod 68 to extend, which in turn moves the U-shaped lifting plate 67 downward, so that the upper elastic polyurethane roller 62 contacts the top surface of the flat copper wire and applies a preset flexible extrusion force.

[0080] Meanwhile, the cooling oil output from the oil cooler 40 is diverted to the upper and lower hollow square columns 60 through the second conduit 57, the third joint 66 and the second flexible telescopic tube 65. The cooling oil enters the hollow elastic polyurethane roller 62 through the hollow square column 60, and cools the production line while maintaining pressure.

[0081] The cooling oil then flows into the coil 51 through the hollow square column 60, flexible telescopic tube 64, tee connector 63 and conduit 56 on the other side, completing the circulation.

[0082] In this embodiment, the second stress relief mechanism 58 uses an elastic polyurethane roller 62 to achieve flexible pressure holding, avoiding the pressure damage to the edge of the flat copper wire caused by the rigid roller; the cooling oil directly contacts the wire body through the hollow square column 60 and the elastic polyurethane roller 62, improving the cooling efficiency and allowing the heated wire body to cool down to room temperature quickly, further suppressing secondary springback.

[0083] The flexible telescopic tube 64 and flexible telescopic tube 65 are designed to accommodate the lifting and lowering action of the hollow square column 60 driven by the electric push rod 68, ensuring that the cooling oil circuit is always sealed and there is no risk of leakage.

[0084] Example 4:

[0085] Please see Figure 7 Based on embodiment 3, two symmetrically arranged strip plates 41 are fixedly connected to the side of the box 37 near the outlet 39. Two rollers 44 are rotatably installed between the two strip plates 41. A conveyor belt 45 is installed between the two rollers 44. The top surface of the conveyor belt 45 is flush with the highest point of the outer periphery of the elastic polyurethane roller 62 below. A motor 42 is fixedly installed on the outer side of one strip plate 41. The roller 44 at the corresponding position rotates through the strip plate 41 and is fixedly connected to the output shaft end of the motor 42.

[0086] Limiting guide posts 43 are fixedly installed on the top surface of strip 41 near both ends. Strip 46 is provided above strip 41 and is slidably connected to the two limiting guide posts 43. A U-shaped connecting plate 47 is fixedly connected between the top surfaces of the two strips 46. A mounting seat 48 is fixedly installed on the side of the box 37 above the U-shaped connecting plate 47. An electric push rod 49 is fixedly installed on the top surface of the mounting seat 48 and is located directly above the U-shaped connecting plate 47. The telescopic end of the electric push rod 49 slides through the mounting seat 48 and is fixedly connected to the U-shaped connecting plate 47.

[0087] Two rollers 44 are also rotatably installed between the two strips 46, and a conveyor belt 45 is installed between the two rollers 44.

[0088] After stress relief, the flat copper wire enters the space between the upper and lower conveyor belts 45 through the outlet 39. The control module 55 drives the electric push rod 49 to extend, which in turn moves the U-shaped connecting plate 47 and the strip plate 46 downward, so that the upper conveyor belt 45 contacts the top surface of the flat copper wire, forming a squeezing constraint.

[0089] Motor 2 42 drives the lower roller 44 to rotate, and the friction between the conveyor belt 45 and the flat copper wire drives the line to be continuously conveyed. The speed of motor 2 42 is synchronized with the speed of motor 17 in the feeding mechanism 3 (the conveying speed is consistent), so as to avoid the line from being stretched or wrinkled during the conveying process.

[0090] In this embodiment, the extrusion conveying structure of the upper and lower conveyor belts 45 can shape and maintain the pressure of the cooled flat copper wire, further consolidating the stress relief effect and ensuring the straightness stability of the wire after it leaves the machine; the electric push rod 49 can dynamically adjust the pressure of the conveyor belt 45 according to the thickness of the flat copper wire to adapt to copper wires of different thicknesses.

[0091] Example 5:

[0092] Please see Figures 1-3 Based on embodiment 3, the feeding mechanism 3 includes two upright plates 7 fixedly installed on the top surface of the workbench 1, and a connecting plate 8 fixedly connected between the top ends of the two upright plates 7. A groove 9 is provided on the inner side of the upright plate 7 near the top, and a slider 10 is slidably installed in the groove 9. A feeding roller 14 is rotatably installed between the two sliders 10. A lifting plate 11 is fixedly installed between the top ends of the two sliders 10. A screw 12 is rotatably connected to the center of the top surface of the lifting plate 11. The top end of the screw 12 is threaded through the connecting plate 8 to the top of the connecting plate 8, and a knob 13 is fixedly installed on the top end of the screw 12.

[0093] A lower feed roller 15 is rotatably mounted between the two vertical plates 7, located directly below the upper feed roller 14. A motor 17 is fixedly mounted on the outside of one of the vertical plates 7. The end of the lower feed roller 15 near the motor 17 rotates through the vertical plate 7 and is fixedly connected to the output shaft end of the motor 17.

[0094] On the side of the connecting plate 8 near the longitudinal straightening mechanism 4, protrusions 18 are fixedly installed at both ends. A slide rod is fixedly connected between the two protrusions 18, and a bidirectional lead screw 20 is rotatably connected between the two protrusions 18. A knob 29 is fixedly installed at one end of the bidirectional lead screw 20 after it rotates through the protrusion 18. Two symmetrically distributed slide seats 21 are installed through the outer periphery of the bidirectional lead screw 20. The slide seats 21 are slidably connected to the slide rod. A vertically set limit roller 22 is rotatably connected to the bottom surface of the slide seat 21 at the end away from the connecting plate 8.

[0095] The upper feed roller 14, the lower feed roller 15, and the limiting roller 22 are all provided with a rubber layer 16 on their periphery;

[0096] The highest point of the outer periphery of the lower feed roller 15 is level with the highest point of the outer periphery of the lower elastic polyurethane roller 62.

[0097] Depending on the thickness of the flat copper wire, turn knob 13 to drive screw 12 to rotate. Through the linkage between lifting plate 11 and slider 10, adjust the distance between upper feed roller 14 and lower feed roller 15 so that they are in close contact with the wire. Turn knob 29 to drive bidirectional lead screw 20 to rotate, drive two slide blocks 21 to move in opposite directions along the slide bar, adjust the distance between two limit rollers 22 to match the width of the flat copper wire.

[0098] Motor 17 drives the lower feed roller 15 to rotate. Stable conveying of the line is achieved through the friction between the upper feed roller 14, the rubber layer 16 around the lower feed roller 15, and the line body.

[0099] In this embodiment, the mechanical adjustment of screw 12 and bidirectional lead screw 20 allows for the adaptation of flat copper wires with different width-to-thickness ratios without the need to replace parts, making the changeover convenient. The rubber layer 16 increases the friction with the wire body, preventing slippage, while also buffering the extrusion pressure to prevent damage to the wire surface. The limiting roller 22 can restrain the lateral deviation of the wire body in advance, providing precise guidance for the subsequent longitudinal and lateral straightening mechanisms and improving the overall straightening efficiency.

[0100] Example 6:

[0101] Please see Figure 1 and Figure 4Based on embodiment 3, the longitudinal straightening mechanism 4 includes a mounting strip 23 fixedly installed on the top surface of the workbench 1. Multiple lower wheels 27 are rotatably mounted on the side of the mounting strip 23 and arranged in an array along its length direction. The highest point of the outer periphery of the lower wheel 27 is flush with the highest point of the outer periphery of the lower elastic polyurethane roller 62.

[0102] Sliding columns 24 are fixedly installed at both ends of the top surface of the mounting strip 23. A lifting strip 26 is provided above the mounting strip 23 and is slidably connected to the two sliding columns 24. Multiple upper wheels 28 are rotatably installed on the side of the lifting strip 26 and are arranged in an array along the length of the lifting strip 26. The multiple upper wheels 28 and multiple lower wheels 27 are arranged alternately.

[0103] A connecting strip 25 is fixedly connected between the top ends of the two sliding columns 24. A screw rod 29 is threaded through the center of the top surface of the connecting strip 25. The bottom end of the screw rod 29 is rotatably connected to the top surface of the sliding column 24. A knob 30 is fixedly installed at the top end of the screw rod 29.

[0104] After the flat copper wire enters the longitudinal straightening mechanism 4, it passes between the upper wheel 28 and the lower wheel 27. According to the thickness of the wire, the knob 30 is turned to drive the screw 29 to rotate, and the height of the lifting bar 26 along the slide column 24 is adjusted so that the upper wheel 28 and the lower wheel 27 apply appropriate extrusion force to the flat copper wire.

[0105] Because the upper wheel 28 and the lower wheel 27 are staggered, the conveyor line will be subjected to alternating reverse bending forces during the conveying process, gradually eliminating longitudinal bending deformation and achieving longitudinal straightness correction.

[0106] The manual adjustment via knob 30 is simple and convenient, allowing operators to make real-time fine adjustments based on the straightening effect of the line.

[0107] Example 7:

[0108] Please see Figure 1 and Figure 5 Based on embodiment 3, the transverse straightening mechanism 5 includes a base plate 71 fixedly installed on the top surface of the workbench 1. Side plates 72 are provided on both sides of the top surface of the base plate 71. A two-way lead screw 34 is rotatably installed between the middle positions of the two side plates 72. A knob 35 is fixedly installed at one end of the two-way lead screw 34 after it rotatably passes through the side plate 72. A guide rod 31 is fixedly installed between the ends of the two base plates 71.

[0109] Two horizontally arranged mounting strips 32 are installed on the outer periphery of the two-way lead screw 34 through the thread. The mounting strips 32 are slidably connected to the two guide rods 31 through the thread.

[0110] Multiple side wheels 33 are rotatably mounted on the top surface of mounting strip 32, arranged in an array along its length.

[0111] The highest point of the outer periphery of the lower elastic polyurethane roller 62 is located between the top and bottom surfaces of the side roller 33.

[0112] Multiple support columns 36 are arrayed on the top surface of the base plate 71 along its length centerline. The top of the support column 36 is embedded with a ball bearing, and the highest point of the ball bearing spherical surface is flush with the highest point of the outer periphery of the lower elastic polyurethane roller 62.

[0113] After longitudinal straightening, the flat copper wire enters the transverse straightening mechanism 5. The bottom surface of the wire contacts the ball bearings at the top of the support column 36 (to reduce friction). According to the width of the wire, the knob 35 is rotated, which drives the bidirectional lead screw 34 to rotate and drives the two mounting strips 32 to move towards each other along the guide rod 31, so that the side wheels 33 on both sides are in close contact with the sides of the wire in the width direction. During the conveying process, the side wheels 33 apply transverse constraints to the wire, gradually eliminating transverse bending deformation. At the same time, the ball bearing structure of the support column 36 can avoid scratches caused by direct friction between the bottom surface of the wire and the base plate 71.

[0114] Example 8:

[0115] The control module 55 can be a programmable logic controller (PLC) from existing technologies, such as the Siemens S7-1200 series PLC. PLC is a mature control device in the field of industrial automation, which realizes logic control and data processing of motors, sensors, actuators, etc. through preset programs.

[0116] In this invention, the core control logic of the PLC is "sensor data acquisition - parameter calculation - actuator driving": the infrared thermometer 53 collects the heating temperature of the flat copper wire in real time and converts the temperature signal into an electrical signal, which is then transmitted to the PLC; the PLC compares the collected temperature value with the preset target temperature (250-300℃) and calculates the required AC current for the coil 51 using a PID (proportional-integral-derivative) adjustment algorithm; finally, the PLC outputs a control signal to the power supply module of the coil 51 to adjust the AC current parameters, ensuring that the heating temperature of the flat copper wire remains stable within the target range. This closed-loop control method of "sensor + PLC + actuator" has been widely used in heating equipment, temperature control systems, and other fields, and is a current technology.

[0117] In addition to implementing closed-loop temperature control, the PLC in control module 55 is also used to drive actuators such as electric push rod 49, electric push rod 68, motor 17, and motor 42. Its control logic is based on existing PLC programming technology: for example, the PLC outputs pulse signals to control the motor speed to ensure that the linear speed of the feed roller 15 and the conveyor belt 45 is synchronized; the PLC outputs switch signals to control the extension and retraction of the electric push rods to adjust the pressure holding pressure of the elastic polyurethane roller 62.

[0118] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed invention.

Claims

1. A flat copper wire straightening device, comprising a workbench (1), wherein the bottom surface of the workbench (1) is fixedly equipped with legs (2) near the corners; characterized in that, Also includes: The feeding mechanism (3) is fixedly installed on the top surface of the workbench (1) near the feed end; The longitudinal straightening mechanism (4) is fixedly installed on the top surface of the workbench (1) and located on the side of the feeding mechanism (3) away from the feeding end of the workbench (1); The transverse straightening mechanism (5) is fixedly installed on the top surface of the workbench (1) and is located on the side of the longitudinal straightening mechanism (4) away from the feeding mechanism (3); And a stress relief mechanism (6), fixedly installed on the top surface of the workbench (1), and located on the side of the transverse straightening mechanism (5) away from the longitudinal straightening mechanism (4), the stress relief mechanism (6) includes: A box (37) is fixedly installed on the top surface of the workbench (1). A heat insulation plate (54) is fixedly installed in the middle of the box (37). A through groove (52) is provided on the side of the heat insulation plate (54). An inlet (38) and an outlet (39) are respectively provided at both ends of the box (37). An oil cooler (40) and a control module (55) are installed on the top surface of the box (37). An infrared thermometer (53) electrically connected to the control module (55) is installed on the side of the heat insulation plate (54). A first stress relief mechanism is provided between the heat insulation plate (54) and the inlet (38) in the box (37). A second stress relief mechanism (58) is provided between the outlet (39) and the heat insulation plate (54). A cooling oil circulation loop is formed between the first stress relief mechanism, the second stress relief mechanism (58) and the oil cooler (40). The first stress relief mechanism includes a mounting cylinder (50) fixedly installed on the inner end face of the housing (37) near the inlet (38). The mounting cylinder (50) is aligned with the inlet (38). A coil (51) is coaxially fixedly installed in the mounting cylinder (50). Both ends of the coil (51) pass through the mounting cylinder (50) and the housing (37) in sequence to the top of the housing (37) and are electrically connected to the control module (55). The coil (51) is a hollow structure. Plastic pipe joints are fixedly installed on both ends of the coil (51). One of the pipe joints is fixedly connected to the oil return port of the oil cooler (40) by a conduit three (59). The second stress relief mechanism (58) includes four hollow square columns (60) arranged in a rectangular shape. The bottom ends of the two lower hollow square columns (60) are fixedly connected to the inner bottom surface of the box (37) with support rods (61). The top surfaces of the two upper hollow square columns (60) are fixedly connected with U-shaped lifting plates (67). The U-shaped lifting plates (67) are fixedly connected to the top surface of the box (37) with pressure application components. Multiple elastic polyurethane rollers (62) are rotatably installed between the two hollow square columns (60) above and below, arranged in an array along the length direction of the hollow square column (60). The elastic polyurethane rollers (62) are hollow, and the two ends of the elastic polyurethane rollers (62) are connected to the hollow square columns (60) at the corresponding positions. A two-way connector (66) is provided between the ends of the two hollow square columns (60) on one side. A conduit (57) is fixedly connected to one end of the two-way connector (66). The end of the conduit (57) away from the two-way connector (66) is connected to the oil outlet of the oil cooler (40). Flexible telescopic pipes (65) are fixedly connected to the other two ends of the two-way connector (66). The ends of the two flexible telescopic pipes (65) away from the two-way connector (66) are respectively fixedly connected to the two hollow square columns (60) at the end positions in a through-type fixed connection. On the other side, a three-way connector (63) is provided between the two hollow square columns (60) at the end away from the three-way connector (66). One end of the three-way connector (63) is fixedly connected to a conduit (56). The end of the conduit (56) away from the three-way connector (63) passes through the box (37) and is connected to the coil (51) through another plastic pipe connector. Both other ends of the three-way connector (63) are fixedly connected to flexible telescopic tubes (64). The ends of the two flexible telescopic tubes (64) away from the three-way connector (63) are respectively fixedly connected to the two hollow square columns (60) at the end positions. Two symmetrically arranged strips (41) are fixedly connected to the side of the box (37) near the outlet (39). Two rollers (44) are rotatably installed between the two strips (41). A conveyor belt (45) is installed between the two rollers (44). The top surface of the conveyor belt (45) is flush with the highest point of the outer periphery of the elastic polyurethane roller (62) below. A motor (42) is fixedly installed on the outer side of one of the strips (41). The roller (44) at the corresponding position rotates through the strip (41) and is fixedly connected to the output shaft end of the motor (42). The top surface of the first strip (41) is fixedly installed with limit guide posts (43) near both ends. The top of the first strip (41) is provided with a second strip (46) that is slidably connected to the two limit guide posts (43). A U-shaped connecting plate (47) is fixedly connected between the top surfaces of the two second strips (46). The top of the U-shaped connecting plate (47) is provided with a mounting seat (48) fixedly installed on the side of the box (37). The top surface of the mounting seat (48) is fixedly installed with an electric push rod (49) located directly above the U-shaped connecting plate (47). The telescopic end of the electric push rod (49) slides through the mounting seat (48) and is fixedly connected to the U-shaped connecting plate (47). Two rollers (44) are also rotatably mounted between the two strips (46), and a conveyor belt (45) is also mounted between the two rollers (44).

2. The flat copper wire straightening device according to claim 1, characterized in that, The pressure application assembly includes a U-shaped hanging plate (69) fixedly installed on the top surface of the box (37). An electric push rod (68) is fixedly installed at the bottom center of the U-shaped hanging plate (69). The telescopic end of the electric push rod (68) slides through the U-shaped hanging plate (69) and is fixedly connected to the top surface of the U-shaped lifting plate (67). Limiting rods (70) are slidably installed through the bottom of the U-shaped hanging plate (69) near the corner. The bottom end of the limiting rod (70) is fixedly connected to the top surface of the U-shaped lifting plate (67).

3. The flat copper wire straightening device according to claim 1, characterized in that, The feeding mechanism (3) includes two upright plates (7) fixedly installed on the top surface of the workbench (1). A connecting plate (8) is fixedly connected between the top ends of the two upright plates (7). A groove (9) is provided on the inner side of the upright plate (7) near the top. A slider (10) is slidably installed in the groove (9). A feeding roller (14) is rotatably installed between the two sliders (10). A lifting plate (11) is fixedly installed between the top ends of the two sliders (10). A screw (12) is rotatably connected to the center of the top surface of the lifting plate (11). The top end of the screw (12) is threaded through the connecting plate (8) to the top of the connecting plate (8). A knob (13) is fixedly installed at the top end of the screw (12). A lower feed roller (15) located directly below the upper feed roller (14) is rotatably installed between two vertical plates (7). A motor (17) is fixedly installed on the outside of one vertical plate (7). The end of the lower feed roller (15) close to the motor (17) rotates through the vertical plate (7) and is fixedly connected to the output shaft end of the motor (17). The connecting plate (8) has protrusions (18) fixedly installed at both ends on the side near the longitudinal straightening mechanism (4). A slide rod is fixedly connected between the two protrusions (18), and a bidirectional lead screw (20) is rotatably connected between the two protrusions (18). A knob (19) is fixedly installed at one end of the bidirectional lead screw (20) after it rotates through the protrusion (18). Two symmetrically distributed slide seats (21) are installed on the periphery of the bidirectional lead screw (20) with a through thread. The slide seats (21) are slidably connected to the slide rod. A vertically arranged limiting roller (22) is rotatably connected to the bottom surface of the slide seat (21) at the end away from the connecting plate (8). The outer periphery of the upper feed roller (14), the lower feed roller (15), and the limiting roller (22) is provided with a rubber layer (16). The highest point of the outer periphery of the feed roller (15) is level with the highest point of the outer periphery of the lower elastic polyurethane roller (62).

4. The flat copper wire straightening device according to claim 1, characterized in that, The longitudinal straightening mechanism (4) includes a mounting strip (23) fixedly installed on the top surface of the workbench (1). Multiple lower wheels (27) are rotatably mounted on the side of the mounting strip (23) and arranged in an array along its length direction. The highest point of the outer periphery of the lower wheel (27) is flush with the highest point of the outer periphery of the lower elastic polyurethane roller (62). The top surfaces of the mounting strip (23) are fixedly equipped with sliding columns (24) at both ends. A lifting strip (26) is provided above the mounting strip (23) and is slidably connected to the two sliding columns (24). Multiple upper wheels (28) are rotatably installed on the side of the lifting strip (26) and are arranged in an array along the length of the lifting strip (26). The multiple upper wheels (28) and multiple lower wheels (27) are staggered. A connecting strip (25) is fixedly connected between the top ends of the two sliding columns (24). A screw rod (29) is threaded through the center of the top surface of the connecting strip (25). The bottom end of the screw rod (29) is rotatably connected to the top surface of the sliding column (24). A knob (30) is fixedly installed at the top end of the screw rod (29).

5. A flat copper wire straightening device according to claim 1, characterized in that, The transverse straightening mechanism (5) includes a base plate (71) fixedly installed on the top surface of the workbench (1). The top surface of the base plate (71) is provided with side plates (72) on both sides. A two-way lead screw (34) is rotatably installed between the middle positions of the two side plates (72). One end of the two-way lead screw (34) is rotatably inserted through the side plate (72) and a knob (35) is fixedly installed thereon. A guide rod (31) is fixedly installed between the ends of the two base plates (71). The outer periphery of the two-way lead screw (34) is threaded with two horizontally arranged mounting strips (32), which are slidably connected to the two guide rods (31). The top surface of the mounting strip 2 (32) is rotatably mounted with a plurality of side wheels (33) arranged in an array along its length direction. The highest point of the periphery of the lower elastic polyurethane roller (62) is located between the top and bottom surfaces of the side roller (33).

6. A flat copper wire straightening device according to claim 5, characterized in that, The top surface of the base plate (71) is provided with a plurality of support columns (36) arranged in an array along its length midline. The top of the support column (36) is embedded with a ball bearing, and the highest point of the ball bearing spherical surface is flush with the highest point of the outer periphery of the lower elastic polyurethane roller (62).

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