Wire drawing device for enameled flat wire production

Abstract

The invention relates to the technical field of enameled flat wires, and discloses a wire drawing device for enameled flat wire production, which comprises a rolling rack, the top of the rolling rack is fixedly connected with a straightening wheel set, the top of the rolling rack is provided with a turnover mechanism, and the turnover mechanism is used for correcting the position of a turned flat wire. The top of the rolling rack is provided with a fixing mechanism, the fixing mechanism is used for rapidly fixing a straightening wheel set, the top of the rolling rack is fixedly connected with a wire-drawing die holder, the top of the wire-drawing die holder is fixedly connected with a wire-drawing die, and the top of the rolling rack is provided with a pre-guiding mechanism. The posture of the flat copper wire is monitored in real time through the infrared detector, and when it is detected that the flat copper wire turns over, the stepping motor drives the rotating ring and enables the vertical wheel to deflect, so that precise lateral correcting force is applied to the flat copper wire, the flat copper wire is made to recover the vertical posture, and the quality and forming precision of wires entering the straightening wheel set are guaranteed from the source.

Description

Technical Field

[0001] This invention relates to the field of enameled flat wire technology, specifically to a wire drawing device for producing enameled flat wire. Background Technology

[0002] Enamelled flat wire is an electromagnetic wire made by uniformly coating an insulating enamel film onto the surface of flat copper or aluminum wire with a rectangular or trapezoidal cross-section through a multi-layer coating process. It combines the advantages of high conductor space utilization, good heat dissipation, and high insulation strength of the enamel film, making it a fundamental material for achieving high power density, miniaturization, and high efficiency in electrical equipment. To facilitate rapid manufacturing of enamelled flat wire, drawing devices for its production have been developed. The wire drawing device for enameled flat wire production is a complete set of equipment that precisely processes round copper rods into flat copper wire blanks. Its core is to achieve precise control over the thickness, width, surface quality and straightness of flat copper wires through multi-pass rolling and continuous drawing processes. In the production process of enameled flat wires, wire drawing and rolling is a key process, which requires drawing round copper wires into flat wires of specified specifications through molds.

[0003] After production, existing wire drawing equipment requires straightening of flat copper wires using straightening rollers. However, before straightening, the flat copper wires may flip or twist due to external forces or guide deviations. Flipped flat copper wires entering the straightening rollers will cause scratches on the wire surface and dimensional deviations. As the quality requirements for enameled flat wires in high-end electrical equipment continue to increase, it is becoming increasingly difficult for wire drawing equipment to straighten using straightening rollers. There is a need for a new type of wire drawing equipment that can monitor and correct the wire posture in real time, thereby improving the production quality and efficiency of enameled flat wires and meeting the needs of industry development. Summary of the Invention

[0004] To address the shortcomings of existing technologies, this invention provides a wire drawing device for producing enameled flat wires, which solves the problem of flat copper wires flipping or twisting due to external forces before straightening.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a wire drawing device for producing enameled flat wire, comprising a rolling mill frame, a straightening wheel assembly fixedly connected to the top of the rolling mill frame, a flipping mechanism provided on the top of the rolling mill frame for correcting the position of the flipped flat wire, a fixing mechanism provided on the top of the rolling mill frame for quickly fixing the straightening wheel assembly, a wire drawing die holder fixedly connected to the top of the rolling mill frame, a wire drawing die fixedly connected to the top of the wire drawing die holder, and a pre-guiding mechanism provided on the top of the rolling mill frame for pre-guiding the round copper wire; The flipping mechanism includes a support frame 1, which is fixedly connected to the top of the rolling mill stand. An infrared detector is fixedly connected to the top of the support frame 1. A stepper motor is fixedly connected to the outer side of the support frame 1, and a gear is fixedly connected to the output end of the stepper motor. A rotating ring is rotatably connected to the inner side of the support frame 1. Two support frames 2 are fixedly connected to the inner side of the rotating ring. Vertical wheels are rotatably connected to the inner side of each of the two support frames 2. Correction grooves are opened on the outer side of each of the two vertical wheels. Multiple tooth blocks are fixedly connected to the outer side of the rotating ring.

[0006] Preferably, the fixing mechanism includes multiple fixing frames, each fixedly connected to the outer side of the straightening wheel assembly, and multiple racks fixedly connected to the outer side of each fixing frame. The top of the rolling mill frame has a first mounting groove, the straightening wheel assembly is slidably connected to the inner side of the first mounting groove, and the top of the rolling mill frame has multiple second mounting grooves. The inner side of each second mounting groove has two toothed fixing plates slidably connected, a connecting shaft is fixedly connected to the inner side of the second mounting groove, and a rotating rod is rotatably connected to the outer side of the connecting shaft.

[0007] Preferably, the pre-guiding mechanism includes two support frames three, each with a ring seat fixedly connected to its top. Multiple mounting slots three are formed on the inner side of each ring seat three, each with a strong spring fixedly connected to its inner side. Telescopic guide rods are fixedly connected to the inner side of each mounting slot three, and connecting pieces are fixedly connected to the outer sides of each telescopic guide rod. Adjusting frames are fixedly connected to the top ends of each telescopic guide rod, and straightening rollers are rotatably connected to the inner sides of each adjusting frame.

[0008] Preferably, two slide bars are fixedly connected to the outer side of the rotating ring, and a slide groove is provided on the inner side of the support frame, with both slide bars slidably connected to the inner side of the slide groove.

[0009] Preferably, a plurality of trapezoidal bosses are fixedly connected to the inner side of the mounting groove, and a plurality of trapezoidal locking grooves are provided at the bottom of the straightening wheel assembly, with the trapezoidal bosses slidably connected to the inner side of the trapezoidal locking grooves.

[0010] Preferably, the top of the rolling mill frame has two sliding grooves, and an L-shaped positioning block is slidably connected to the inner side of each of the two sliding grooves. A return spring is fixedly connected to the inner side of each of the two sliding grooves. The outer side of the straightening wheel assembly has two reinforcing grooves, and the L-shaped positioning block is slidably connected to the inner side of the reinforcing groove.

[0011] Preferably, the top of the rolling mill frame is provided with a plurality of protective grooves, the inner sides of the plurality of protective grooves are slidably connected with protective baffles, and the tops of the plurality of protective baffles are fixedly connected with handles.

[0012] Preferably, the top of the rolling mill frame is provided with a plurality of protective grooves, and a protective baffle is slidably connected to the inner side of each of the plurality of protective grooves.

[0013] Preferably, a support platform is fixedly connected to the top of the rolling mill stand, an oil tank is fixedly connected to the top of the support platform, a throttling and pressure-regulating valve is fixedly connected to the outside of the oil tank, an oil delivery pipe is connected to the outside of the throttling and pressure-regulating valve, an annular lubricator is fixedly connected to the outside of the oil tank, and an oil storage tank is provided on the outside of the annular lubricator.

[0014] Preferably, a recycling box is fixedly connected to the outside of the oil tank, the bottom end of the recycling box is connected to a one-way return pipe, and the other end of the one-way return pipe is connected to the outside of the oil tank.

[0015] This invention provides a wire drawing device for producing enameled flat wire. It has the following advantages: 1. This invention monitors the state of flat copper wire using an infrared detector. When the flat copper wire flips, a stepper motor is activated and, through the meshing connection between gears and multiple tooth blocks, drives the rotating ring to rotate along its own axis, thereby causing two vertical wheels to rotate. By applying a lateral corrective force to the flat copper wire, the twisted flat copper wire is corrected, significantly improving the linear quality of the wire entering the straightening wheel group, enhancing production stability and product consistency, and ensuring the forming accuracy of high-end enameled flat wire from the source.

[0016] 2. This invention ensures the accuracy of installing the straightening wheel assembly into the mounting slot one through a trapezoidal guide groove. Then, two toothed fixing plates in the same mounting slot two move towards each other and mesh with the fixing frame and rack, providing a high-rigidity vibration-resistant connection structure for the installation of the straightening wheel assembly. The cooperation between the L-shaped positioning block and the reinforcement groove can increase the stability of the straightening wheel assembly in the mounting slot one. Finally, protective baffle one and protective baffle two are used to increase the service life of precision components, improve the installation and replacement efficiency of the straightening wheel assembly, and ensure the long-term stability and maintenance convenience of the equipment.

[0017] 3. This invention, when the round copper wire enters the flexible guide channel, the vibration or protrusion of the round copper wire presses against the corresponding straightening roller. The straightening roller, by compressing a strong spring and retracting along the guide telescopic rod, causes the strong spring to generate a reverse restoring force. When the reverse restoring force is fed back to the straightening roller and a flexible radial corrective force is applied, the original bending and vibration of the round copper wire are actively absorbed and corrected. This significantly improves the straightness and operational stability of the wire entering the main deformation zone, reduces quality fluctuations from the source, and directly improves the overall quality and efficiency of flat copper wire production. Attached Figure Description

[0018] Figure 1 This is a perspective view of the present invention; Figure 2This is a front view of the present invention; Figure 3 This is a schematic diagram of the stepper motor of the present invention; Figure 4 This is a partial cross-sectional view of the support frame of the present invention; Figure 5 This is a schematic diagram of the structure of the fixing frame of the present invention; Figure 6 This is a partial cross-sectional view of the straightening wheel assembly of the present invention; Figure 7 This is a cross-sectional view of the straightening wheel assembly of the present invention; Figure 8 This is a schematic diagram of the rotating rod of the present invention; Figure 9 This is a cross-sectional view of the annular seat of the present invention; Figure 10 This is a schematic diagram of the oil tank structure of the present invention.

[0019] The components include: 1. Rolling mill stand; 2. Straightening wheel assembly; 3. Tilting mechanism; 31. Support frame one; 32. Infrared detector; 33. Stepper motor; 34. Gear; 35. Rotary ring; 36. Support frame two; 37. Vertical wheel; 38. Straightening groove; 39. Tooth block; 310. Sliding bar; 311. Slide groove one; 4. Fixing mechanism; 41. Fixing frame; 42. Tooth rack; 43. Mounting groove one; 44. Mounting groove two; 45. Toothed fixing plate; 46. Connecting shaft; 47. Rotating rod; 48. Trapezoidal boss; 49. Trapezoidal locking groove; 410. Slide groove two; 411. L-shaped positioning block; 412. 413. Reset spring; 414. Reinforcing groove; 415. Protective baffle two; 416. Handle; 417. Protective groove two; 418. Protective baffle one; 419. Protective groove one; 5. Wire drawing die base; 6. Wire drawing die; 7. Pre-guide mechanism; 71. Support frame three; 72. Circular seat; 73. Placement groove three; 74. Strong spring; 75. Telescopic guide rod; 76. Connecting piece; 77. Adjusting frame; 78. Straightening roller; 8. Support platform; 9. Oil tank; 10. Throttling and pressure regulating valve; 11. Oil delivery pipe; 12. Annular lubricator; 13. Oil storage tank; 14. Recovery box; 15. One-way return pipe. Detailed Implementation

[0020] The technical solutions in 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.

[0021] Please see the appendix Figure 1 - Appendix Figure 4This invention provides a wire drawing device for producing enameled flat wire, including a rolling mill frame 1. A straightening wheel group 2 is fixedly connected to the top of the rolling mill frame 1. The straightening wheel group 2 is used to correct the position of the flat copper wire. A flipping mechanism 3 is provided on the top of the rolling mill frame 1. The flipping mechanism 3 is used to correct the position of the flipped flat wire. A fixing mechanism 4 is provided on the top of the rolling mill frame 1. The fixing mechanism 4 is used to quickly fix the straightening wheel group 2. A wire drawing die base 5 is fixedly connected to the top of the rolling mill frame 1. A wire drawing die 6 is fixedly connected to the top of the wire drawing die base 5. The wire drawing die 6 draws the round copper wire into flat copper wire. A pre-guiding mechanism 7 is provided on the top of the rolling mill frame 1. The pre-guiding mechanism 7 is used to pre-guide the round copper wire. The flipping mechanism 3 includes a support frame 31, which is used to raise the vertical wheel 37 in the vertical direction. The support frame 31 is fixedly connected to the top of the rolling mill stand 1. An infrared detector 32 is fixedly connected to the top of the support frame 31 to observe the state of the flat copper wire. A stepper motor 33 is fixedly connected to the outside of the support frame 31, serving as a power source. A gear 34 is fixedly connected to the output end of the stepper motor 33. A rotating ring 35 is rotatably connected to the inside of the support frame 31. The fixed connection has two support frames 36, and vertical wheels 37 are rotatably connected to the inner side of each support frame 36. The outer side of each vertical wheel 37 is provided with a straightening groove 38. The flat copper wire is clamped by the vertical wheel 37 and the straightening groove 38. Multiple tooth blocks 39 are fixedly connected to the outer side of the rotating ring 35. The multiple tooth blocks 39 and gear 34 are meshed. Two slide bars 310 are fixedly connected to the outer side of the rotating ring 35. The inner side of the support frame 31 is provided with a slide groove 311. The two slide bars 310 are slidably connected to the inner side of the slide groove 311. Specifically, just before the flat copper wire enters the straightening wheel group 2, due to external force or guidance deviation, the flat copper wire may twist or flip. The infrared detector 32 scans the three-dimensional state of the flat copper wire in real time. When the flipping of the flat copper wire is detected, the stepper motor 33 is started. Since the gear 34 at the output end of the stepper motor 33 meshes with the tooth block 39 on the outer side of the rotating ring 35, the stepper motor 33 can drive the entire rotating ring 35 to rotate around its own axis. The rotating ring 35 achieves smooth and wobbly rotation by cooperating with the sliding groove 311 opened inside the support frame 31 through the outer fixed slide bar 310. The rotation of the rotating ring 35 drives the two support frames 36 and the vertical wheel 37 fixedly connected to its inner side to rotate synchronously. Since the outer sides of the two vertical wheels 37 are A straightening groove 38, matching the thickness of the flat copper wire, is provided, forming a rotary clamping guide. By precisely controlling the rotation angle of the stepper motor 33, the clamping guide is flexibly rotated from the initial vertical clamping state to an inclined angle. When the twisted and flipped flat copper wire passes through the clamping opening with the angle actively adjusted, the lateral force applied by the vertical wheel 37 and the straightening groove 38 can effectively counteract the twisted state of the flat copper wire and straighten the twisted and flipped flat copper wire back to a vertical posture. After the correction is completed, the infrared detector 32 continues to monitor, and the stepper motor 33 drives the rotating ring 35 back to the initial position, ready for the next adjustment. This enables the flipping mechanism 3 to achieve real-time adjustment of the flipping state of the flat copper wire, significantly improving the linear quality of the flat copper wire before entering the straightening wheel group 2.

[0022] Please see the appendix Figure 5 - Appendix Figure 8 In a preferred embodiment of the present invention, the fixing mechanism 4 includes multiple fixing frames 41, which serve as external fixing components of the straightening wheel assembly 2. The multiple fixing frames 41 are fixedly connected to the outside of the straightening wheel assembly 2, and multiple racks 42 are fixedly connected to the outside of the multiple fixing frames 41. The top of the rolling mill frame 1 is provided with a first mounting groove 43, and the straightening wheel assembly 2 is slidably connected to the inside of the first mounting groove 43. The top of the rolling mill frame 1 is provided with multiple second mounting grooves 44, and two toothed fixing plates 45 are slidably connected to the inside of the multiple second mounting grooves 44. The structure composed of the fixing frame 41 and the racks 42 is fixed in position by the two toothed fixing plates 45. A connecting shaft 46 is fixedly connected to the inside of the second mounting groove 44, and the connecting shaft 46 passes through the two toothed fixing plates 45. A rotating rod 47 is rotatably connected to the outside of the connecting shaft 46. The distance between the two toothed fixing plates 45 is adjusted by rotating the rotating rod 47, thereby fixing the structure composed of the fixing frame 41 and the racks 42 in position. Multiple trapezoidal bosses 48 are fixedly connected to the inner side of the mounting groove 43. Multiple trapezoidal locking grooves 49 are provided at the bottom of the straightening wheel assembly 2. The trapezoidal bosses 48 are slidably connected to the inner side of the trapezoidal locking grooves 49. The sliding connection between the trapezoidal bosses 48 and the trapezoidal locking grooves 49 ensures the precision of the straightening wheel assembly 2's positional installation. Two sliding grooves 410 are provided on the top of the rolling mill stand 1. L-shaped positioning blocks 411 are slidably connected to the inner side of each of the two sliding grooves 410. Return springs 412 are fixedly connected to the inner side of each of the two sliding grooves 410. Two reinforcing grooves 413 are provided on the outer side of the straightening wheel assembly 2. The L-shaped positioning blocks 411 are slidably connected to the inner side of the reinforcing grooves 413. The return springs 412 are used to secure the L-shaped positioning blocks 411. The L-shaped positioning block 411 restricts the position of the straightening wheel group 2 by extrusion. The top of the rolling mill stand 1 is provided with multiple protective grooves 416, which are connected to the placement grooves 44. The inner sides of the multiple protective grooves 416 are slidably connected with protective baffles 414, which can protect the components inside the placement grooves 44. The top of the multiple protective baffles 414 is fixedly connected with handles 415, which can facilitate the movement of the protective baffles 414. The top of the rolling mill stand 1 is provided with multiple protective grooves 418, and the inner sides of the multiple protective grooves 418 are slidably connected with protective baffles 417, which are used to protect the components inside the chute 410. Specifically, when installing the straightening wheel assembly 2 onto the top of the rolling mill stand 1, the operator first pushes the straightening wheel assembly 2 into the rolling mill stand 1 along the first mounting groove 43. Simultaneously, multiple trapezoidal locking grooves 49 on the bottom of the straightening wheel assembly 2 precisely align and slide with the trapezoidal bosses 48 fixed in the first mounting groove 43, achieving precise positioning and vertical limiting of the straightening wheel assembly 2. When the straightening wheel assembly 2 reaches the preset position, the fixing frames 41 and racks 42 on both sides of the straightening wheel assembly 2 insert into the second mounting groove 44. Then, the operator pulls and rotates each rotating rod 47 outwards. The rotation of the rotating rods 47, through the connecting shaft 46, drives two toothed fixing plates 45 to slide towards each other in the second mounting groove 44, causing the teeth on the inner side of the toothed fixing plates 45 to gradually engage with the racks 42 on the outer side of the fixing frames 41, thereby firmly locking the straightening wheel assembly 2 onto the rolling mill stand 1 from both sides. During the positioning of the straightening wheel assembly 2, the reinforcing groove 413 on the side of the straightening wheel assembly 2 will push the L-shaped positioning block 411 in the slide groove 410 to compress the return spring 412. When the straightening wheel assembly 2 is fully installed and the reinforcing groove 413 is aligned with the L-shaped positioning block 411, the return spring 412 pushes the L-shaped positioning block 411 to pop out and lock into the reinforcing groove 413, forming an additional lateral lock to prevent accidental displacement. Finally, the operator pushes each protective baffle 414 into the protective groove 416 through the handle 415 to cover the components in the placement groove 44. At the same time, the protective baffle 417 slides on the inner wall of the protective groove 418 to cover the area in the slide groove 410. This ensures the safety of the operation of each component of the device and avoids dust contamination of the internal precision components, realizing the quick and accurate installation of the straightening wheel assembly 2 and improving the installation and replacement efficiency.

[0023] Please see the appendix Figure 9 In a preferred embodiment of the present invention, the pre-guide mechanism 7 includes two support frames 71, which are used to raise the height of the annular seat 72. The tops of both support frames 71 are fixedly connected to the annular seat 72, which serves as the mounting carrier. Multiple mounting slots 73 are formed on the inner sides of the two annular seats 72. A strong spring 74 is fixedly connected to the inner side of each mounting slot 73. One end of the strong spring 74 is fixedly connected to one side of the mounting slot 73, and the other end is fixedly connected to the connecting... On one side of the plate 76, a strong spring 74 is used to provide support force, so that the adjusting frame 77 and the straightening roller 78 provide elastic clamping force. The inner side of the multiple mounting slots 73 is fixedly connected to a telescopic guide rod 75, which is used to ensure the stability of the guide. The outer side of the multiple telescopic guide rods 75 is fixedly connected to a connecting plate 76. The top of the multiple telescopic guide rods 75 is fixedly connected to an adjusting frame 77. The inner side of the multiple adjusting frames 77 is rotatably connected to a straightening roller 78, which directly contacts the round copper wire. Specifically, after the round copper wire to be processed is drawn out from the wire feeding structure, it first passes through two pre-guide mechanisms 7. The round copper wire passes between the upper and lower rows of straightening rollers 78. Since each straightening roller 78 is connected by an adjusting frame 77, a connecting piece 76, a strong spring 74, and a telescopic guide rod 75, the straightening roller 78 can elastically float under the compression of the wire. In the early stages of wire feeding or operation, if there is local bending or fluctuation in the round copper wire, the round copper wire will press the straightening roller 78 at the corresponding position. The straightening roller 78 transmits the force to the adjusting frame 77 and the connecting piece 76. The connecting piece 76 then compresses the strong spring 74 behind it and smoothly retreats along the axial direction of the telescopic guide rod 75. The reverse force generated by the strong spring 74... Force is continuously applied to the straightening roller 78 through the connecting piece 76 and the adjusting frame 77, thereby forming a flexible radial constraint and straightening force on the round copper wire. The telescopic guide rod 75 ensures that the connecting piece 76 and the adjusting frame 77 always move in a straight line during compression and reset, avoiding lateral swaying and ensuring the stability of the force direction applied by the straightening roller 78 to the wire. Under the independent action of the strong spring 74, all straightening rollers 78 can adaptively conform to the local contour of the round copper wire, forming an elastic dynamic guide channel. This effectively eliminates the original slight bending and shaking of the round copper wire, allowing the round copper wire to enter the subsequent drawing and rolling area with a straighter and more stable posture, thus improving the quality of flat copper wire production.

[0024] Please see the appendix Figure 10 A support platform 8 is fixedly connected to the top of the rolling mill frame 1. The support platform 8 is used to raise the position of the oil tank 9. The oil tank 9 is fixedly connected to the top of the support platform 8. The oil tank 9 stores a large amount of lubricating oil. A throttling and pressure regulating valve 10 is fixedly connected to the outside of the oil tank 9. The throttling and pressure regulating valve 10 is used to control the amount of lubricating oil flowing out. An oil delivery pipe 11 is connected to the outside of the throttling and pressure regulating valve 10. The oil delivery pipe 11 is used to transfer the lubricating oil from the oil tank 9 to the oil storage tank 13 outside the annular lubricator 12. An annular lubricator 12 is fixedly connected to the outside of the oil tank 9. A round copper wire enters through the annular lubricator 12. An oil storage tank 13 is opened on the outside of the annular lubricator 12. A recovery box 14 is fixedly connected to the outside of the oil tank 9. A one-way return pipe 15 is connected to the bottom end of the recovery box 14. The other end of the one-way return pipe 15 is connected to the outside of the oil tank 9. Specifically, during the wire drawing and rolling process, lubricating oil is stored in a high-level oil tank 9, where gravitational potential energy is used to create a stable oil pressure. When the equipment is started, the operator operates the throttling and pressure-regulating valve 10 to allow the lubricating oil to flow at a preset flow rate through the oil delivery pipe 11 into the oil storage tank 13 outside the annular lubricator 12. Under capillary action and wire traction, the lubricating oil in the oil storage tank 13 is evenly adhered to the surface of the continuously passing round copper wire, forming a continuous lubricating film. As the round copper wire enters the subsequent rolling die, excess lubricating oil drips into the bottom recycling box 14 under the action of the wire and gravity. The recycling box 14 is connected to the oil tank 9 through the one-way return pipe 15 at the bottom. The dripping lubricating oil is automatically returned to the oil tank 9 through the one-way return pipe 15 with the assistance of gravity, realizing the recycling and reuse of lubricating oil, improving the utilization rate of lubricating oil, reducing the consumption and maintenance frequency of the lubrication structure, and ensuring continuous and stable lubrication during the rolling process.

[0025] Working Principle: In the enameled flat wire production line, the flat copper wire may overturn due to uneven force or guide deviation when entering the straightening roller group 2. To improve product quality, an infrared detector 32 fixed on the support frame 31 scans the advancing flat copper wire. When the flat copper wire is detected to be twisted or overturned, the stepper motor 33 is quickly started. Since the gear 34 connected to the output shaft of the stepper motor 33 meshes with multiple tooth blocks 39 fixed on the outside of the rotating ring 35, when the stepper motor 33 is running, the gear 34 drives the rotating ring 35 to rotate around the central axis of the rotating ring 35. In addition, to ensure the stability of the rotation process, the slide bar 310 fixed on the outer wall of the rotating ring 35 forms a guiding fit with the slide groove 311 opened on the inner side of the support frame 31, which prevents the rotation from twisting or deviating. The rotating ring also rotates together with the rotating ring 35. Two support frames 36 and vertical wheels 37 are fixed to the inner wall of the 35. Since the outer sides of the two vertical wheels 37 are machined with straightening grooves 38 that are adapted to the thickness of the flat copper wire, they form a guide jaw that can deflect synchronously. Through the precise rotation angle control of the stepper motor 33, the guide jaw is adjusted from the initial vertical state to the specified angle. When the flat copper wire that has been flipped passes through the guide jaw after the angle correction, the lateral constraint surface of the straightening groove 38 will apply a corrective force to the flat copper wire, gradually counteracting the torsion of the flat copper wire and restoring the flat copper wire to the standard vertical posture. After the correction of the flat copper wire is completed, the infrared detector 32 continues to monitor the state of the copper wire, and the stepper motor 33 drives the rotating ring 35 to return to the initial position. This enables the flipping mechanism 3 to realize the state perception and automatic correction of the flat copper wire entering the straightening wheel group 2, which significantly improves the input quality of subsequent straightening. When the straightening wheel assembly 2 slides into the mounting groove 43, the trapezoidal locking groove 49 at the bottom of the straightening wheel assembly 2 and the trapezoidal boss 48 on the frame form a wedge-shaped guide and vertical positioning, which can automatically correct minor installation deviations and provide stable vertical support. When the straightening wheel assembly 2 is placed in the working position, the fixing brackets 41 and racks 42 on both sides of the straightening wheel assembly 2 are inserted into the corresponding mounting grooves 44. At the same time, the operator rotates the rotating rod 47, which, through the transmission of the connecting shaft 46, drives the two toothed fixing plates 45 to move horizontally towards each other in the mounting grooves 44. This causes the teeth on the inner side of the toothed fixing plates 45 to gradually mesh with the racks 42 on the outer side of the fixing brackets 41, forming a lateral mechanical lock, which effectively resists the vibration generated during operation and prevents... To prevent loosening of the connection, during the process of pushing the straightening wheel assembly 2 into the first mounting groove 43, the side of the straightening wheel assembly 2 will press the L-shaped positioning block 411 and compress the return spring 412 behind the L-shaped positioning block 411. When the straightening wheel assembly 2 is fully in place and the reinforcing groove 413 is aligned with the L-shaped positioning block 411, the spring releases its elastic force, pushing the L-shaped positioning block 411 to pop out quickly and lock into the reinforcing groove 413, forming an elastic self-locking structure to prevent the straightening wheel assembly 2 from moving accidentally. Finally, by pushing in the first protective baffle 417 and the second protective baffle 414, the components in the second mounting groove 44 and the second sliding groove 410 are sealed to achieve dust prevention and safety protection, and to achieve fast, accurate and reliable modular installation of the straightening wheel assembly 2. The pre-guiding mechanism 7 occurs before the round copper wire is drawn into flat copper wire. It constructs a flexible guide channel consisting of multiple independent radially floating straightening rollers 78. Each straightening roller 78 is connected via an adjusting frame 77, a connecting piece 76, a strong spring 74, and a telescopic guide rod 75. When the round copper wire passes through the straightening roller 78, if the wire has local bends or undulations, the protruding parts will press against the corresponding straightening roller 78. At this time, the force is transmitted to the connecting piece 76 via the adjusting frame 77. The connecting piece 76 compresses the strong spring 74 and smoothly retracts along the axial direction of the telescopic guide rod 75. 75 strictly limits the connecting piece 76 to axial movement only, completely eliminating radial wobble and ensuring the accuracy of force transmission direction. The compressed high-strength spring 74 generates a reverse restoring force, which is fed back to the straightening roller 78 through the connecting piece 76 and the adjusting frame 77. This causes the straightening roller 78 to apply a continuous and flexible radial corrective force to the protruding parts or wobble of the round copper wire. This not only effectively absorbs and suppresses the original small bending and shaking of the round copper wire, but also avoids excessive compression or scratching of the wire, thereby significantly improving the straightness and stability of the wire entering the drawing die 6 and improving the quality and efficiency of flat copper wire forming.

[0026] 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 alterations 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 wire drawing device for producing enameled flat wire, comprising a rolling mill frame (1), characterized in that, A straightening wheel assembly (2) is fixedly connected to the top of the rolling mill stand (1). A flipping mechanism (3) is provided on the top of the rolling mill stand (1). The flipping mechanism (3) is used to correct the position of the flipped flat wire. A fixing mechanism (4) is provided on the top of the rolling mill stand (1). The fixing mechanism (4) is used to quickly fix the straightening wheel assembly (2). A wire drawing die base (5) is fixedly connected to the top of the rolling mill stand (1). A wire drawing die (6) is fixedly connected to the top of the wire drawing die base (5). A pre-guiding mechanism (7) is provided on the top of the rolling mill stand (1). The pre-guiding mechanism (7) is used to pre-guide the round copper wire. The flipping mechanism (3) includes a support frame (31), which is fixedly connected to the top of the rolling mill frame (1). An infrared detector (32) is fixedly connected to the top of the support frame (31). A stepper motor (33) is fixedly connected to the outside of the support frame (31). A gear (34) is fixedly connected to the output end of the stepper motor (33). A rotating ring (35) is rotatably connected to the inside of the support frame (31). Two support frames (36) are fixedly connected to the inside of the rotating ring (35). Vertical wheels (37) are rotatably connected to the inside of each of the two support frames (36). A straightening groove (38) is opened on the outside of each of the two vertical wheels (37). Multiple tooth blocks (39) are fixedly connected to the outside of the rotating ring (35).

2. The wire drawing device for producing enameled flat wire according to claim 1, characterized in that, The fixing mechanism (4) includes multiple fixing frames (41), all of which are fixedly connected to the outside of the straightening wheel assembly (2). Multiple racks (42) are fixedly connected to the outside of the multiple fixing frames (41). The top of the rolling mill frame (1) is provided with a first mounting groove (43). The straightening wheel assembly (2) is slidably connected to the inside of the first mounting groove (43). The top of the rolling mill frame (1) is provided with multiple second mounting grooves (44). Two toothed fixing plates (45) are slidably connected to the inside of the second mounting grooves (44). A connecting shaft (46) is fixedly connected to the inside of the second mounting groove (44). A rotating rod (47) is rotatably connected to the outside of the connecting shaft (46).

3. The wire drawing device for producing enameled flat wire according to claim 1, characterized in that, The pre-guide mechanism (7) includes two support frames (71), and a ring seat (72) is fixedly connected to the top of each of the two support frames (71). Multiple placement slots (73) are opened on the inner side of each of the two ring seats (72). A strong spring (74) is fixedly connected to the inner side of each of the multiple placement slots (73). A telescopic guide rod (75) is fixedly connected to the inner side of each of the multiple placement slots (73). A connecting piece (76) is fixedly connected to the outer side of each of the multiple telescopic guide rods (75). An adjustment frame (77) is fixedly connected to the top of each of the multiple telescopic guide rods (75). A straightening roller (78) is rotatably connected to the inner side of each of the multiple adjustment frames (77).

4. The wire drawing device for producing enameled flat wire according to claim 1, characterized in that, Two slide bars (310) are fixedly connected to the outer side of the rotating ring (35), and a slide groove (311) is provided on the inner side of the support frame (31), and the two slide bars (310) are slidably connected to the inner side of the slide groove (311).

5. A wire drawing device for producing enameled flat wire according to claim 2, characterized in that, Multiple trapezoidal bosses (48) are fixedly connected to the inner side of the mounting groove (43), and multiple trapezoidal locking grooves (49) are opened at the bottom of the straightening wheel assembly (2). The trapezoidal bosses (48) are slidably connected to the inner side of the trapezoidal locking grooves (49).

6. The wire drawing device for producing enameled flat wire according to claim 2, characterized in that, The top of the rolling mill stand (1) has two slide grooves (410), and the inner sides of the two slide grooves (410) are slidably connected to L-shaped positioning blocks (411). The inner sides of the two slide grooves (410) are fixedly connected to return springs (412). The outer side of the straightening wheel set (2) has two reinforcing grooves (413), and the L-shaped positioning blocks (411) are slidably connected to the inner side of the reinforcing grooves (413).

7. A wire drawing device for producing enameled flat wire according to claim 2, characterized in that, The top of the rolling mill frame (1) is provided with multiple protective grooves (416), and the inner side of each of the multiple protective grooves (416) is slidably connected with a protective baffle (414), and the top of each of the multiple protective baffles (414) is fixedly connected with a handle (415).

8. A wire drawing device for producing enameled flat wire according to claim 2, characterized in that, The top of the rolling mill stand (1) is provided with a plurality of protective grooves (418), and a protective baffle (417) is slidably connected to the inner side of each of the plurality of protective grooves (418).

9. A wire drawing device for producing enameled flat wire according to claim 1, characterized in that, The top of the rolling mill stand (1) is fixedly connected to a support platform (8), the top of the support platform (8) is fixedly connected to an oil tank (9), the outside of the oil tank (9) is fixedly connected to a throttling and pressure regulating valve (10), the outside of the throttling and pressure regulating valve (10) is connected to an oil supply pipe (11), the outside of the oil tank (9) is fixedly connected to an annular lubricator (12), and an oil storage tank (13) is opened on the outside of the annular lubricator (12).

10. A wire drawing device for producing enameled flat wire according to claim 9, characterized in that, A recycling box (14) is fixedly connected to the outside of the oil tank (9). The bottom end of the recycling box (14) is connected to a one-way return pipe (15), and the other end of the one-way return pipe (15) is connected to the outside of the oil tank (9).

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