An automatic copper wire feeding device

Abstract

This invention provides an automatic copper wire feeding device, including a base, a frame, an unwinding mechanism, a winding mechanism, copper wire, and a controller. The unwinding and winding mechanisms are positioned opposite each other at both ends of the base. A drawing die is provided on the top surface of a support plate. The copper wire passes through the drawing die, with one end connected to the unwinding mechanism via a first guide wheel and the other end connected to the winding mechanism via a second guide wheel. The winding mechanism includes a winding reel and a driving mechanism. Multiple slots are provided on the top of the winding reel, and clamping mechanisms are installed within the slots. A moving mechanism is connected to a rectangular frame via a first electric push rod. A third guide wheel is rotatably mounted within the rectangular frame, and a pressing block is connected to the bottom of the rectangular frame via a second electric push rod. A strain gauge is provided on the side of the telescopic end of the first electric push rod. This invention uses strain gauges to detect the tension of the copper wire. When the tension disappears, the electric push rod and the moving mechanism are triggered to precisely clamp the end of the copper wire into the slot, preventing it from being in a free state and becoming entangled.

Description

Technical Field

[0001] This utility model relates to the field of copper wire manufacturing technology, and in particular to an automatic copper wire feeding device. Background Technology

[0002] Copper wire is a metal wire made from electrolytic copper through processes such as hot rolling and drawing. Due to its excellent conductivity, ductility, and corrosion resistance, copper wire is widely used in cable shielding layers, industrial filters, and electronic component leads. Especially in the microelectronics industry, ultra-fine copper wire has become a core material for integrated circuit bonding wires, requiring extremely high levels of surface finish, strength, and diameter uniformity.

[0003] The production process of copper wire mainly includes melting and casting, drawing and diameter reduction, strengthening and annealing, and surface treatment. First, electrolytic copper blocks are heated and melted into molten copper, which is then cast into copper rods through a water-cooled mold. Then, a multi-pass drawing process is used to gradually reduce the diameter. Cooling liquid is applied to the drawing mold to cool the drawing mold and the copper wire. Finally, the thinned copper wire is wound into a coil.

[0004] However, during the process of winding the copper wire into a coil, when the end of the copper wire finally leaves the drawing die, the tension on the copper wire suddenly disappears, causing it to spring back and pull. Since the end is in a free state, it is easy to tangle into a mess, which is not conducive to the tight winding of the copper wire onto the coil. Utility Model Content

[0005] In view of this, the present invention proposes an automatic copper wire feeding device to solve the problems mentioned above.

[0006] The technical solution of this utility model is implemented as follows:

[0007] An automatic copper wire feeding device includes a base, a frame, an unwinding mechanism, a winding mechanism, copper wire, and a controller. The frame is mounted on the top surface of the base. The unwinding and winding mechanisms are positioned opposite each other at both ends of the base, with a first guide wheel and a second guide wheel positioned opposite each other in the middle. A support plate is located between the first and second guide wheels. The support plate is fixed to the side of the frame and has a drawing die on its top surface. The copper wire passes through the drawing die, with one end connected to the unwinding mechanism via the first guide wheel and the other end connected to the winding mechanism via the second guide wheel. The winding mechanism includes a winding reel and a driving mechanism. Multiple slots are evenly arranged around the top of the winding reel along its axis, and clamping mechanisms are installed within the slots. The drive mechanism, located on the base, is used to drive the winding reel to rotate. A moving mechanism is located on the top of the frame, with a first electric actuator connected to its bottom. A rectangular frame is connected to the telescopic end of the first electric actuator. A third guide wheel is rotatably mounted inside the rectangular frame. A second electric actuator is located at the bottom of the rectangular frame, with a clamping block connected to its telescopic end. The copper wire passes through the second guide wheel, then through the rectangular frame, and abuts against the bottom of the third guide wheel. A strain gauge is located on the side of the telescopic end of the first electric actuator to detect the tension of the copper wire. The controller is located on the top surface of the frame and is electrically connected to the moving mechanism, drive mechanism, first electric actuator, second electric actuator, and strain gauge.

[0008] Preferably, the unwinding mechanism includes a cylinder, an unwinding reel, and a fourth guide wheel. The cylinder is located on the top surface of the base, the unwinding reel is rotatably sleeved on the cylinder, the fourth guide wheel is located on the side of the frame and between the unwinding reel and the first guide wheel, and the copper wire is wound on the unwinding reel with one end passing through the bottom of the fourth guide wheel and abutting against the top of the first guide wheel.

[0009] Preferably, the clamping mechanism includes a slider and a helical spring. The inner wall of the opening groove is provided with a receiving groove. The slider is slidably disposed in the receiving groove. The helical spring is disposed in the receiving groove, with one end abutting against the bottom of the receiving groove and the other end abutting against the side of the slider. The side of the slider abuts against the inner wall opposite to the opening groove. The slider is provided with a rounded corner on the opening side of the opening groove, and its radius is greater than the width of the groove.

[0010] Preferably, the moving mechanism includes a support plate, a lead screw, a first motor, and a moving block. The support plates are disposed opposite each other on the top of the frame. The lead screw is rotatably disposed between the two support plates, with one end rotatably connected to the support plate and the other end passing through the support plate and driving the first motor. The first motor is disposed on the side of the support plate. The moving block is disposed on the lead screw and slidably connected to the frame. The bottom surface of the moving block is connected to the first electric push rod.

[0011] Preferably, the driving mechanism includes a frustum, a rotating shaft, a second motor, and a flat key. The frustum is fixedly mounted on the top surface of the base. The rotating shaft is rotatably mounted on the frustum, with its bottom end passing through the frustum and the base and connected to the second motor. The second motor is mounted on the bottom surface of the base. The winding reel is sleeved on the rotating shaft and fixed by the flat key.

[0012] Preferably, the system also includes U-shaped limiting plates, with two U-shaped limiting plates disposed opposite each other on the top surface of the support plate. The top surface of the base is provided with an arc-shaped groove located in the middle of the U-shaped limiting plates, and the drawing die is disposed in the arc-shaped groove.

[0013] Preferably, a cooling mechanism is also included, which includes a water pump, a solenoid valve, a water pipe, and a nozzle. The water pump is located on the top surface of the frame, one end of the water pipe is connected to the water pump, and the other end passes through the top of the frame and extends downward. The nozzle is located at the end of the water pipe, and its water outlet direction is towards the drawing die. The solenoid valve is located on the water pipe.

[0014] Preferably, the top of the clamping block is provided with an arc-shaped portion, the diameter of which matches the outer diameter of the third guide wheel.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] 1. When the end of the copper wire finally leaves the drawing die, the tension on the copper wire suddenly disappears, and the copper wire is no longer taut. After the stress strain gauge detects that the tension of the copper wire has returned to zero, it transmits a signal to the controller. The controller starts the second electric push rod. The extension end of the second electric push rod extends and drives the clamping block to rise, pressing the copper wire onto the third guide wheel. Then, the controller controls the drive mechanism and the moving mechanism to move synchronously. The opening slot on the take-up reel faces the rectangular frame. The moving mechanism and the first electric push rod are started to move the rectangular frame into the opening slot. The rectangular frame abuts against the rounded corner of the slider, squeezing the slider to slide into the receiving groove. When the rectangular frame abuts against the inner wall of the opening slot, the first electric push rod is started. The extension end of the first electric push rod shortens and drives the rectangular frame to rise, moving the copper wire into the opening slot. When the rectangular frame leaves the opening slot, the slider returns to its original position under the action of the helical spring and clamps the copper wire, thus preventing the end of the copper wire from being in a free state after springback, which can easily tangle into a mess and affect the winding effect of the copper wire.

[0017] 2. A cooling device is installed. Clean water or coolant is pumped from the water source and flows through the water pipes. It is then sprayed from the nozzles, and the clean water is continuously sprayed onto the drawing die to cool the drawing die and the copper wire. This keeps the temperature of the drawing die stable, prevents the drawing die from overheating, which would affect the copper wire's passage, and simultaneously prevents oxidation of the copper wire surface. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only preferred embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a cross-sectional structural diagram of an automatic copper wire feeding device according to the present invention;

[0020] Figure 2 for Figure 1 Enlarged view of point A in the middle;

[0021] Figure 3 This is a schematic diagram of the drawing die installation structure of an automatic copper wire feeding device according to this utility model;

[0022] Figure 4 for Figure 1 Enlarged view of point B in the middle;

[0023] Figure 5 This is a schematic diagram of the rectangular frame structure of an automatic copper wire feeding device according to the present invention;

[0024] Figure 6 This is a schematic diagram of the structure of the opening groove of an automatic copper wire feeding device according to the present invention;

[0025] Figure 7 This is a schematic diagram of the structure of a take-up reel of an automatic copper wire feeding device according to this utility model;

[0026] Reference numerals: 1. Base; 2. Frame; 3. Unwinding reel; 4. Cylinder; 5. Copper wire; 6. First guide wheel; 7. Second guide wheel; 8. Third guide wheel; 9. Support plate; 10. U-shaped limiting plate; 11. Drawing die; 12. Arc groove; 13. First electric actuator; 14. Stress strain gauge; 15. First motor; 16. Rectangular frame; 17. Fourth guide wheel; 18. Clamping block; 19. Second electric actuator; 20. Controller; 21. Arc-shaped part; 22. Second motor; 23. Rotating shaft; 24. Frustum; 25. Flat key; 26. Rewinding reel; 27. Opening slot; 28. Receiving slot; 29. ​​Slider; 30. Rounded corner; 31. Helical spring; 32. Water pipe; 33. Solenoid valve; 34. Water pump; 35. Support plate; 36. Lead screw; 37. Moving block; 38. Nozzle. Detailed Implementation

[0027] To better understand the technical content of this utility model, a specific embodiment is provided below, and the utility model will be further described in conjunction with the accompanying drawings.

[0028] See Figures 1 to 7 This utility model provides an automatic copper wire feeding device, comprising a base 1, a frame 2, an unwinding mechanism, a winding mechanism, copper wire 5, and a controller 20. The frame 2 is located on the top surface of the base 1. The unwinding mechanism and the winding mechanism are located opposite each other at both ends of the base 1, with a first guide wheel 6 and a second guide wheel 7 positioned opposite each other in the middle. A support plate 9 is located between the first guide wheel 6 and the second guide wheel 7. The support plate 9 is fixed to the side of the frame 2 and has a drawing die 11 on its top surface. The copper wire 5 passes through the drawing die 11, and one end is connected to the unwinding mechanism via the first guide wheel 6. The winding mechanism is connected to the take-up mechanism at one end via a second guide wheel 7. The take-up mechanism includes a take-up reel 26 and a drive mechanism. The top of the take-up reel 26 is evenly provided with multiple opening slots 27 around the axis. Each opening slot 27 is provided with a clamping mechanism for fixing the end of the copper wire 5. The drive mechanism is located on the base 1 and is used to drive the take-up reel 26 to rotate. The drive mechanism is driven by a servo motor. The angle of rotation of the take-up reel 26 each time is equal to 360° divided by the number of opening slots 27. When the drive mechanism stops, it ensures that the opening of the opening slot 27 faces the rectangular frame 16. The frame 2 has a moving mechanism at its top, and a first electric actuator 13 is connected to the bottom of the moving mechanism. A rectangular frame 16 is connected to the telescopic end of the first electric actuator 13. A third guide wheel 8 is rotatably mounted inside the rectangular frame 16. A second electric actuator 19 is located at the bottom of the rectangular frame 16, and a clamping block 18 is connected to the telescopic end of the second electric actuator 19. The copper wire 5 passes through the second guide wheel 7 and then through the rectangular frame, abutting against the bottom of the third guide wheel 8. A strain gauge 14 is provided on the side of the telescopic end of the first electric actuator 13 to detect the tension of the copper wire 5. The controller 20 is located on the top surface of the frame 2 and is electrically connected to the moving mechanism, the driving mechanism, the first electric actuator 13, the second electric actuator 19, and the strain gauge 14. The controller 20 uses a low-power STM32-L0 microprocessor.

[0029] When the device is working, the unwinding mechanism accommodates the copper wire 5 that needs to be thinned. First, one end of the copper wire 5 is processed so that the diameter of the end of the copper wire 5 is smaller than the aperture of the drawing die 11. The copper wire 5 is then passed through the drawing die 11, clamped with pliers, and the other end of the copper wire 5 is manually passed through the second guide wheel 7 and then through the rectangular frame between the third guide wheel 8 and the clamping block 18. Finally, the copper wire 5 is connected to the winding mechanism. Then, the controller 20 is started, and the controller 20 starts the drive mechanism. The drive mechanism drives the winding reel 26 to rotate at a preset rotation speed. At this time, the copper wire 5 is taut, and the first guide wheel 6 and the second guide wheel 7 are aligned with each other. The copper wire 5 in the middle of the second guide wheel 7 is in a horizontal state and coincides with the central axis of the drawing die 11. The copper wire 5 abuts against the top of the first guide wheel 6 and the second guide wheel 7 respectively. Then the moving mechanism is activated, and the moving mechanism drives the first electric push rod 13 to move to one side of the second guide wheel 7. The first electric push rod 13 is activated, and the telescopic end of the first electric push rod 13 extends, causing the rectangular frame 16 to descend, so that the third guide wheel 8 descends. After the bottom of the third guide wheel 8 abuts against the copper wire 5, it continues to descend to the preset position. The height of the bottom of the third guide wheel 8 is lower than the top of the second guide wheel 7. As the winding mechanism continuously pulls the copper wire 5, the stress strain gauge 14 detects the tension of the copper wire 5 in real time. When the end of the copper wire 5 finally leaves the drawing die 11, the tension on the copper wire 5 suddenly disappears, and the copper wire 5 is no longer taut. After the stress strain gauge 14 detects that the tension of the copper wire 5 is zero, it transmits a signal to the controller 20. The controller 20 activates the second electric push rod 19. The telescopic end of the second electric push rod 19 extends, causing the clamping block 18 to rise and press the copper wire 5 onto the third guide wheel 8. Then, the controller 20 controls the drive mechanism and the moving mechanism to move synchronously. The opening slot 27 on the take-up reel 26 faces the rectangular frame 16. The moving mechanism and the first electric push rod 13 are activated, raising the rectangular frame 16 to its middle part, where it is at the same vertical height as the opening slot 27. Then, the rectangular frame 16 is moved horizontally from one side into the opening slot 27. The rectangular frame 16 abuts against the rounded corner 30 of the slider 29, squeezing the slider 29 to slide into the receiving slot. When the rectangular frame 16 abuts against the inner wall of the opening slot 27, the first electric push rod 13 is activated. The telescopic end of the first electric push rod 13 shortens, causing the rectangular frame 16 to rise and move the copper wire 5 into the opening slot 27. When the rectangular frame 16 leaves the opening slot 27, the slider 29 returns to its original position under the action of the helical spring 31, and clamps the copper wire 5 into the opening slot 27, thereby preventing the end of the copper wire 5 from being in a free state, which can easily become tangled and affect the winding effect of the copper wire 5.

[0030] Preferably, the unwinding mechanism includes a cylinder 4, an unwinding reel 3, and a fourth guide wheel 17. The cylinder 4 is located on the top surface of the base 1, the unwinding reel 3 is rotatably sleeved on the cylinder 4, the fourth guide wheel 17 is located on the side of the frame 2 and between the unwinding reel 3 and the first guide wheel 6, and the copper wire 5 is wound on the unwinding reel 3 and one end passes through the bottom of the fourth guide wheel 17 and abuts against the top of the first guide wheel 6.

[0031] The unwinding mechanism is used to accommodate the copper wire 5 to be processed. As the winding mechanism pulls, the copper wire 5 is continuously released. The fourth guide wheel 17 is located between the unwinding reel 3 and the first guide wheel 6. Its lowest point in the vertical direction is lower than the line connecting the wire exit point of the unwinding reel 3 and the wire entry point of the first guide wheel 6. After the copper wire 5 is drawn out from the unwinding reel 3, it first descends and wraps around the bottom of the fourth guide wheel 17 to form a wrap angle, and then ascends to abut the top of the first guide wheel 6 in a tangential direction, forming an S-shaped transmission path. By using gravity tension and wrap angle constraint, the copper wire 5 is aligned with the axis of the drawing die 11 when it is in a taut state. The copper wire 5 moves horizontally, which is conducive to the copper wire 5 passing smoothly through the drawing die 11.

[0032] Preferably, the clamping mechanism includes a slider 29 and a helical spring 31. The inner wall of the opening groove 27 is provided with a receiving groove. The slider 29 is slidably disposed in the receiving groove. The helical spring 31 is disposed in the receiving groove, with one end abutting against the bottom of the receiving groove 28 and the other end abutting against the side of the slider 29. The side of the slider 29 abuts against the inner wall opposite to the opening groove 27. The slider 29 is provided with a rounded corner 30 on the opening side of the opening groove 27, and its radius is greater than the width of the groove.

[0033] The clamping mechanism is used to clamp and fix the end of the copper wire 5 in the opening groove 27. The helical spring 31 is radially arranged in the receiving groove, with one end fixed to the bottom of the receiving groove and the other end abutting the side of the slider 29 near the opening of the groove. This causes the slider 29 to protrude partially in its natural state and abut against the inner wall of the opening groove 27. The protruding end has a rounded corner 30 with a radius larger than the width of the opening groove 27. When the external mechanism presses the rounded corner 30, the slider 29 compresses the helical spring 31 and moves radially backward. After the copper wire 5 enters the opening groove 27, the slider 29 returns to its original position under the action of the spring. The side of the slider 29 and the inner wall of the opening groove 27 form a two-sided clamping, thereby clamping and fixing the end of the copper wire 5.

[0034] Preferably, the moving mechanism includes a support plate 35, a lead screw 36, a first motor 15, and a moving block 37. The support plates 35 are disposed opposite each other on the top of the frame 2. The lead screw 36 is rotatably disposed between the two support plates 35, with one end rotatably connected to the support plate 35 and the other end passing through the support plate 35 and driving the first motor 15. The first motor 15 is disposed on the side of the support plate 35. The moving block 37 is disposed on the lead screw 36 and slidably connected to the frame 2. The bottom surface of the moving block 37 is connected to the first electric push rod 13.

[0035] The moving mechanism is used to drive the first electric actuator 13 to move horizontally. When the first electric actuator 13 needs to move, the first motor 15 is started. The rotation of the first motor 15 drives the lead screw 36 to rotate. The rotation of the lead screw 36 drives the moving block 37 to move along the axis of the lead screw 36, thereby driving the first electric actuator 13 to move horizontally. Under the control of the controller 20, the first electric actuator 13 can be moved to a predetermined position.

[0036] Preferably, the driving mechanism includes a frustum 24, a rotating shaft 23, a second motor 22, and a flat key 25. The frustum 24 is fixedly mounted on the top surface of the base 1. The rotating shaft 23 is rotatably mounted on the frustum 24, with its bottom end passing through the frustum 24 and the base 1 and connected to the second motor 22. The second motor 22 is mounted on the bottom surface of the base 1. The winding reel 26 is sleeved on the rotating shaft 23 and fixed by the flat key 25.

[0037] The drive mechanism is used to drive the take-up reel 26 to rotate. The second motor 22, which is mounted on the bottom surface of the base 1, is a servo motor. Its output shaft is connected to the rotating shaft 23. The take-up reel 26 is sleeved on the rotating shaft 23 and fixed by the flat key 25. The take-up reel 26 can be disassembled by pulling out the flat key 25. When the take-up reel 26 is initially installed, the opening of the slot 27 is ensured to face the rectangular frame 16. The angle of each rotation of the take-up reel 26 is equal to 360° divided by the number of slots 27. When the drive mechanism stops, the opening of the slot 27 is ensured to face the rectangular frame 16.

[0038] Preferably, the system also includes a U-shaped limiting plate 10, with two U-shaped limiting plates 10 disposed opposite each other on the top surface of the support plate 9. The top surface of the base 1 is provided with an arc-shaped groove 12, which is located in the middle of the U-shaped limiting plates 10. The drawing die 11 is disposed in the arc-shaped groove 12.

[0039] An arc-shaped groove 12 is machined at the center of the top surface of the support plate 9. Its radius of curvature matches the outer diameter of the drawing die 11, and the axis of the arc-shaped groove 12 is parallel to the transmission direction of the copper wire 5. The drawing die 11 is nested in the arc-shaped groove 12, and its outer circumferential surface forms a radial constraint with the wall of the arc-shaped groove 12. The two end faces are axially limited by the inner wall of the U-shaped limiting plate 10 to ensure that the drawing die 11 remains stable during the high-speed drawing of the copper wire 5.

[0040] Preferably, a cooling mechanism is also included, which includes a water pump 34, a solenoid valve 33, a water pipe 32, and a nozzle 38. The water pump 34 is located on the top surface of the frame 2. One end of the water pipe 32 is connected to the water pump 34, and the other end passes through the top of the frame 2 and extends downward. The nozzle 38 is located at the end of the water pipe 32, and its water outlet direction is towards the drawing die 11. The solenoid valve 33 is located on the water pipe 32.

[0041] Water or coolant is pumped from the water source by water pump 34 and flows through water pipe 32. It is then sprayed out from nozzle 38. The water is continuously sprayed onto the drawing die 11 to cool the drawing die 11 and the copper wire 5 in the drawing zone. This keeps the temperature of the drawing die 11 stable, prevents the drawing die 11 from overheating and affecting the passage of the copper wire 5, and simultaneously prevents oxidation of the surface of the copper wire 5.

[0042] Preferably, the top of the clamping block 18 is provided with an arc-shaped portion 21, the diameter of which matches the outer diameter of the third guide wheel 8.

[0043] The curvature diameter of the arc-shaped portion 21 is set to match the outer diameter of the third guide wheel 8, so that when the clamping block 18 acts on the copper wire 5 and makes it fit tightly against the third guide wheel 8, the arc-shaped portion 21 can closely fit the outer contour of the third guide wheel 8 and provide a uniform clamping force to the copper wire 5 during the clamping process.

[0044] It should be noted that in this specification, relational terms such as first and second are used only to distinguish one entity from several other entities, and do not necessarily require or imply any such actual relationship or order between these entities.

[0045] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A copper wire automatic wire feeder, characterized by, The system includes a base, a frame, an unwinding mechanism, a winding mechanism, copper wire, and a controller. The frame is mounted on the top surface of the base. The unwinding and winding mechanisms are positioned opposite each other at both ends of the base, with a first guide wheel and a second guide wheel positioned opposite each other in the middle. A support plate is located between the first and second guide wheels. The support plate is fixed to the side of the frame and has a drawing die on its top surface. The copper wire passes through the drawing die, with one end connected to the unwinding mechanism via the first guide wheel and the other end connected to the winding mechanism via the second guide wheel. The winding mechanism includes a winding reel and a drive mechanism. Multiple slots are evenly spaced around the top of the winding reel along its axis, and clamping mechanisms are installed within these slots to secure the copper wire. At the end, the drive mechanism is located on the base to drive the winding reel to rotate. A moving mechanism is located on the top of the frame. A first electric actuator is connected to the bottom of the moving mechanism. A rectangular frame is connected to the telescopic end of the first electric actuator. A third guide wheel is rotatably arranged inside the rectangular frame. A second electric actuator is located at the bottom of the rectangular frame. A clamping block is connected to the telescopic end of the second electric actuator. The copper wire passes through the rectangular frame after passing through the second guide wheel and abuts against the bottom of the third guide wheel. A strain gauge is provided on the side of the telescopic end of the first electric actuator to detect the tension of the copper wire. The controller is located on the top surface of the frame and is electrically connected to the moving mechanism, the drive mechanism, the first electric actuator, the second electric actuator, and the strain gauge.

2. The automatic copper wire feeder as claimed in claim 1, wherein The unwinding mechanism includes a cylinder, an unwinding reel, and a fourth guide wheel. The cylinder is located on the top surface of the base, the unwinding reel is rotatably sleeved on the cylinder, the fourth guide wheel is located on the side of the frame and between the unwinding reel and the first guide wheel, and the copper wire is wound on the unwinding reel with one end passing through the bottom of the fourth guide wheel and abutting against the top of the first guide wheel.

3. The automatic copper wire feeder of claim 1, wherein The clamping mechanism includes a slider and a helical spring. The inner wall of the opening groove is provided with a receiving groove. The slider is slidably disposed in the receiving groove. The helical spring is disposed in the receiving groove, with one end abutting against the bottom of the receiving groove and the other end abutting against the side of the slider. The side of the slider abuts against the inner wall opposite to the opening groove. The slider is provided with a rounded corner on the opening side of the opening groove, and its radius is greater than the width of the groove.

4. The automatic copper wire feeder of claim 1, wherein The moving mechanism includes a support plate, a lead screw, a first motor, and a moving block. The support plates are positioned opposite each other on the top of the frame. The lead screw is rotatably positioned between the two support plates, with one end rotatably connected to the support plate and the other end passing through the support plate and driving the first motor. The first motor is located on the side of the support plate. The moving block is mounted on the lead screw and slidably connected to the frame. The bottom surface of the moving block is connected to the first electric push rod.

5. The automatic copper wire feeder of claim 1, wherein, The driving mechanism includes a frustum, a rotating shaft, a second motor, and a flat key. The frustum is fixedly mounted on the top surface of the base. The rotating shaft is rotatably mounted on the frustum, with its bottom end passing through the frustum and the base and connected to the second motor. The second motor is mounted on the bottom surface of the base. The winding reel is sleeved on the rotating shaft and fixed by the flat key.

6. The automatic copper wire feeder of claim 1, wherein It also includes U-shaped limiting plates, two of which are disposed opposite each other on the top surface of the support plate, and the top surface of the base is provided with an arc-shaped groove located in the middle of the U-shaped limiting plates, and the drawing die is disposed in the arc-shaped groove.

7. The automatic copper wire feeder of claim 1, wherein The cooling mechanism comprises a water pump, an electromagnetic valve, a water pipe and a spray head.

8. The automatic copper wire feeder of claim 1, wherein, The top of the pressing block is provided with an arc-shaped part, and the diameter of the arc-shaped part matches the outer diameter of the third guide wheel.

Images