Wire drawing device and method for copper wire production

Abstract

The invention relates to the technical field of copper wire manufacturing, and discloses a wiredrawing device and method for copper wire production, the wiredrawing device comprises a guide rail, the surface of the guide rail is slidably provided with a sliding seat, and the upper surface of the sliding seat is provided with an embossing assembly for embossing the surface of a moving copper wire and weakening the galling phenomenon of the surface of the copper wire. According to the equipment, the hollow shaft servo motor in the coining assembly indirectly drives the wire drawing die to rotate around the axis of the hollow shaft servo motor, so that the wire pressing lines arranged on the inner wall of the reducing section of the wire drawing die form shallow spiral concave lines on the surface of a copper wire in a moving state; the superficial spiral dimpled grains are filled and supplemented by a flowing copper layer generated due to extrusion on the surface layer of the copper wire, the flowing state of the copper material in a deformation area is regulated and controlled from the source by matching a containing space pressed on the surface of the copper wire in advance with cold slippery liquid on the surface of the copper wire, pits and unevenness caused by the galling phenomenon on the surface of the copper wire are weakened, and the wire drawing quality is improved.

Description

Technical Field

[0001] This invention relates to the field of copper wire manufacturing technology, and in particular to a wire drawing device and method for copper wire production. Background Technology

[0002] Copper wire drawing is a crucial process in metal wire production. Its basic principle involves drawing a large-diameter copper wire through the feed inlet, the diameter reduction section, and the smoothing section of a drawing die under the pulling force of a traction device. This causes plastic deformation, reducing the diameter and achieving the desired dimensional accuracy and surface quality. During the drawing process, to ensure the surface quality of the copper wire and extend the service life of the drawing die, cooling lubricant is continuously supplied to the diameter reduction and smoothing sections of the die. This reduces the coefficient of friction between the copper wire and the die's inner wall and removes deformation heat.

[0003] Existing copper wire drawing devices include a traction device, a drawing die, and a cooling and lubrication system. The inner wall of the diameter reduction section of the drawing die has a smooth conical structure. Cooling and lubricating fluid is sprayed onto the surface of the copper wire and the inner wall of the die through a spray device located on one side of the feed port of the drawing die. Under the continuous pulling of the traction device, the copper wire passes through the drawing die to achieve diameter reduction drawing. Because copper is relatively soft and has good ductility, when the copper wire undergoes severe plastic deformation as it passes through the diameter reduction section of the drawing die, the surface material generates directional flow under high pressure. When the flow exceeds the capacity of the tiny gap between the inner wall of the die and the surface of the copper wire, the excess material cannot be effectively discharged, resulting in micro-tears, debris shedding, and material accumulation, forming a roughening defect that extends axially. Existing drawing devices mostly deal with the roughening problem by increasing the flow rate of cooling and lubricating fluid or improving the smoothness of the inner wall of the die.

[0004] However, the above-mentioned equipment still has the following shortcomings: the cooling lubricant can only provide lubrication and cooling for the friction interface between the copper wire and the inner wall of the die. When the drawing speed increases or the diameter reduction increases, the material flow on the surface of the copper wire intensifies. Relying solely on the cooling lubricant is insufficient to suppress the formation of roughening defects, resulting in continuous axial scratches, pits and unevenness on the surface of the finished copper wire, affecting the conductivity of the copper wire and the quality of subsequent processing. Furthermore, the inner wall of the diameter reduction section of the existing drawing die is a smooth conical structure, which only provides a single extrusion deformation function. When metal debris generated by micro-tears on the surface of the copper wire is pressed into the surface of the copper wire under high pressure, the smooth inner wall of the die cannot effectively guide or remove the debris. The debris continues to travel with the copper wire and causes secondary scratches on the surface of the copper wire during subsequent extrusion, further aggravating the roughening defects. Summary of the Invention

[0005] The present invention aims to address the shortcomings of the prior art and therefore proposes a wire drawing device and method for copper wire production.

[0006] To achieve the above objectives, this application adopts the following technical solution: a wire drawing device for copper wire production, including a guide rail, a slide block slidably mounted on the surface of the guide rail, an embossing component for embossing the surface of the copper wire to improve the wire drawing effect mounted on the upper surface of the slide block, and an adjustment component for adjusting the tension of the copper wire in conjunction with the embossing component mounted and fixed on the upper surface of the guide rail.

[0007] The embossing assembly includes a hollow shaft servo motor fixedly mounted on the upper surface of the slide block. An output shaft tube is provided at the shaft center of the hollow shaft servo motor, and a wire drawing die is inserted through the shaft center of the output shaft tube.

[0008] The wire drawing die consists of an inlet, a diameter reduction section, a smoothing section, and an outlet arranged in sequence, with their axes coinciding. The inner wall of the diameter reduction section of the wire drawing die is provided with wire pressing texture.

[0009] The adjustment assembly includes a U-shaped rocker arm rotatably mounted on the side wall of the slide block. A pressure roller is rotatably mounted on the outer wall of the U-shaped rocker arm at the middle position of the end away from the slide block, and the vertical height of the axis of the pressure roller is higher than the height of the axis of the wire drawing die.

[0010] Two sets of support rods are symmetrically and rotatably mounted on the upper surface of the slide block, and the outer wall of one end of each support rod is hinged to a U-shaped swing rod.

[0011] Preferably, the outer wall of the wire drawing die is provided with multiple sets of key bars arranged in an equiangular array around the axis, and the inner wall of the output shaft tube is provided with keyways of matching size and shape at the contact position with the key bars.

[0012] Preferably, a positioning wheel is rotatably mounted on the upper surface of the slide block between the pressure roller and the wire drawing die inlet, and the vertical height of the positioning wheel axis is lower than the height of the wire drawing die axis.

[0013] Preferably, a wire-threading tube is fixedly installed at both ends of the upper surface of the guide rail by a bracket. A spline guide tube is provided at the axis of the wire-threading tube. The axis of the wire-threading tube coincides with the axis of the wire drawing die. Copper wires are inserted into the inner walls of the wire-threading tube and the wire drawing die, and the copper wires pass through the inner wall of the spline guide tube. Multiple sets of anti-rotation grooves are formed in an equiangular array around the axis on the inner wall of the spline guide tube.

[0014] Preferably, a limiting ring is fixed to the outer wall of the wire drawing die near the discharge port, and a threaded hoop is threaded onto the outer wall of the wire drawing die away from the limiting ring. A matching thread is provided at the contact position between the outer wall of the wire drawing die and the threaded hoop.

[0015] Preferably, two sets of through rods are symmetrically fixed on the outer walls of both sides of the slide. The axis of the through rod is parallel to the guide rail. A collar is fixedly installed on the upper surface of the slide at a position corresponding to one side of the through rod, and the through rod slides through the collar.

[0016] Preferably, the outer wall of the through rod is fitted with an elastic element for driving the slide to reset, and the two ends of the elastic element abut against the outer wall of one side of the collar and one end of the through rod, respectively.

[0017] Preferably, the outer walls of both the pressure roller and the positioning roller are provided with U-shaped grooves around the axis. The inner wall of the groove of the pressure roller is in contact with the upper surface of the copper wire, and the inner wall of the groove of the positioning roller is in contact with the lower surface of the copper wire.

[0018] Preferably, a pressure sensing device for real-time monitoring of traction force is provided at one end of the through rod. The pressure sensing device is connected to a control device for precisely controlling the forward and reverse rotation of the hollow shaft servo motor via a wire. The control device is connected to the hollow shaft servo motor via a wire.

[0019] A wire drawing method for a wire drawing device used in copper wire production includes the following steps:

[0020] S1. Pass the copper wire through the spline guide tube and the drawing die, and place it between the groove of the pressure roller and the positioning roller, so that the pressure roller is suspended on the upper surface of the copper wire and the positioning roller contacts the lower surface of the copper wire. At the same time, the copper wire needs to pass through the spline guide tube to constrain its two ends axially, and the positioning roller lifts the copper wire to keep it at the axis of the die.

[0021] S2. Start the empty shaft servo motor to drive the wire drawing die to rotate. When the copper wire travels, the wire pressing pattern on the inner wall of the diameter reduction section forms a shallow spiral groove on the surface of the copper wire. Constrained by the spline guide tube, the copper wire in this section does not produce a large axial rotation. When the copper wire continues to be squeezed to reduce the diameter, the copper layer flowing on the surface will fill and supplement the groove. The pre-made spare space is used in conjunction with the cold lubricating fluid to reduce the scratching phenomenon.

[0022] S3. When the copper wire is stuck, the traction force increases, and the drawing die and the copper wire form a relatively tight integrated structure. The traction force drives the slide to slide along the guide rail, and the slide drives the U-shaped swing arm to rotate. Through the support rod transmission, the pressure roller presses down on the copper wire. At the same time, the positioning wheel pulls the copper wire out of the discharge port in the opposite direction, forming a stuck, pressing, and pulling effect and pulling out the stuck part. After the stuck part passes, the elastic element drives the slide and pressure roller to reset.

[0023] S4. The copper wire, after being embossed and reduced in diameter and drawn, is output from the outlet and enters the next process.

[0024] The technical effects and advantages of this invention are as follows:

[0025] In this invention, the device indirectly drives the wire drawing die to rotate around its axis via an empty shaft servo motor in the embossing assembly. This causes the wire pressing patterns on the inner wall of the wire drawing die's diameter reduction section to form shallow spiral grooves on the surface of the copper wire during its travel. When the copper wire with shallow spiral grooves continues to be compressed, the copper layer flowing due to the compression fills and replenishes the shallow spiral grooves. By utilizing the pre-pressed allowance space on the surface of the copper wire, combined with the cooling fluid on the surface of the copper wire, the flow state of the copper material in the deformation zone is controlled from the source, thereby reducing the pits and unevenness on the surface of the copper wire caused by the roughening phenomenon, thus improving the wire drawing quality.

[0026] In this invention, the device rotates the U-shaped swing arm as the slide block slides along the guide rail. The U-shaped swing arm, together with the support rod, causes the pressure roller to slowly press down on the copper wire. In conjunction with the positioning roller, it pulls the copper wire near the discharge port of the drawing die in the opposite direction, forming a stagnation, pressure, and pull effect to promptly remove the stuck copper wire. When the stuck part passes smoothly, the elastic element sleeved on the outer wall of the rear rod drives the slide block and pressure roller to reset, realizing the adaptive adjustment of the copper wire tension, avoiding copper wire jamming and breakage due to excessive tension, thereby ensuring the continuity and stability of the embossing process. Attached Figure Description

[0027] The disclosure of this invention is illustrated with reference to the accompanying drawings. It should be understood that the drawings are for illustrative purposes only and are not intended to limit the scope of protection of this invention. In the drawings, the same reference numerals are used to refer to the same parts:

[0028] Figure 1 This is a schematic diagram of the main structure of the present invention;

[0029] Figure 2 This is a side view of the structure of the present invention;

[0030] Figure 3 This is a partial cross-sectional view of the present invention;

[0031] Figure 4 This is a schematic side cross-sectional view of the structure of the present invention;

[0032] Figure 5 For the present invention Figure 4 Enlarged schematic diagram of the structure at point A in the middle;

[0033] Figure 6 This is a cross-sectional view of the structure of the present invention;

[0034] Figure 7 This is a cross-sectional schematic diagram of the wire drawing die structure of the present invention.

[0035] Legend: 1. Guide rail; 11. Slide; 111. Through rod; 112. Collar; 12. Wire through tube; 121. Spline guide tube; 13. U-shaped rocker arm; 131. Support rod; 14. Pressure roller; 15. Positioning roller; 2. Imprinting assembly; 21. Hollow shaft servo motor; 211. Output shaft tube; 22. Wire drawing die; 221. Key bar; 23. Wire embossing pattern. Detailed Implementation

[0036] It is readily understood that, based on the technical solution of this invention, those skilled in the art can propose various interchangeable structural methods and implementations without altering the essential spirit of the invention. Therefore, the following detailed embodiments and accompanying drawings are merely illustrative examples of the technical solution of this invention and should not be considered as the entirety of the invention or as limitations or restrictions on the technical solution of this invention.

[0037] Reference Figure 1-7 As shown, the present invention provides a technical solution: a wire drawing device for copper wire production, including a guide rail 1, a slide block 11 slidably mounted on the surface of the guide rail 1, an embossing component 2 for embossing the surface of the copper wire to improve the wire drawing effect mounted on the upper surface of the slide block 11, and an adjustment component for adjusting the tension of the copper wire in conjunction with the embossing component 2 mounted and fixed on the upper surface of the guide rail 1.

[0038] The embossing assembly 2 includes an empty shaft servo motor 21 fixedly mounted on the upper surface of the slide block 11. An output shaft tube 211 is provided at the shaft center of the empty shaft servo motor 21, and a wire drawing die 22 is inserted through the shaft center of the output shaft tube 211.

[0039] The wire drawing die 22 consists of a feed inlet, a diameter reduction section, a smoothing section, and a discharge outlet arranged in sequence, with their axes coinciding. The inner wall of the diameter reduction section of the wire drawing die 22 is provided with wire pressing texture 23.

[0040] The adjustment assembly includes a U-shaped rocker arm 13 rotatably mounted on the side wall of the slide block 11. A pressure roller 14 is rotatably mounted on the middle position of the end of the U-shaped rocker arm 13 away from the slide block 11, and the vertical height of the axis of the pressure roller 14 is higher than the height of the axis of the wire drawing die 22.

[0041] Two sets of support rods 131 are symmetrically and rotatably mounted on the upper surface of the slide block 11. The outer wall of one end of the support rod 131 is hinged to the U-shaped swing rod 13.

[0042] Reference Figure 3-7 As shown in this embodiment: the outer wall of the wire drawing die 22 is provided with multiple sets of key bars 221 arranged in an equiangular array around the axis, and the inner wall of the output shaft tube 211 is provided with keyways of matching size and shape at the contact position with the key bars 221.

[0043] The engagement between the keyway and the key bar 221 ensures that the hollow shaft servo motor 21 can drive the wire drawing die 22 to rotate stably, and ensures that the wire pressing pattern 23 in the wire drawing die 22 can leave smooth shallow spiral grooves on the surface of the traveling copper wire, which is a prerequisite for the realization of the embossing component 2.

[0044] Reference Figure 1-6 As shown in this embodiment: a positioning wheel 15 is rotatably mounted on the upper surface of the slide block 11 between the pressure roller 14 and the feed port of the wire drawing die 22, and the vertical height of the axis of the positioning wheel 15 is lower than the height of the axis of the wire drawing die 22.

[0045] Reference Figure 1-6 As shown in this embodiment: Wire threading tubes 12 are fixedly installed at both ends of the upper surface of the guide rail 1 by brackets. A spline guide tube 121 is provided at the axis of the wire threading tube 12. The axis of the wire threading tube 12 coincides with that of the wire drawing die 22. Copper wires are inserted into the inner walls of both the wire threading tube 12 and the wire drawing die 22, and the copper wires pass through the inner wall of the spline guide tube 121. Multiple sets of anti-rotation grooves are formed in an equiangular array around the axis on the inner wall of the spline guide tube 121. The anti-rotation grooves increase the resistance to the rotation of the copper wire along the axis through their own spline structure. Together with the clamping and fixing device, the possibility of the copper wire rotating together when the wire drawing die 22 rotates is reduced, ensuring the normal operation of the imprinting assembly 2.

[0046] Reference Figure 1-7 As shown in this embodiment: a limiting ring is fixed to the outer wall of the wire drawing die 22 near the discharge port. The limiting ring can limit the wire drawing die 22 to prevent it from moving laterally along the axis and ensure operational stability. A threaded hoop is threadedly sleeved on the outer wall of the wire drawing die 22 away from the limiting ring. The threaded hoop can limit the wire drawing die 22 in the same way as the limiting ring. At the same time, the threaded hoop is a detachable structure to ensure normal replacement and maintenance of the wire drawing die 22. Matching threads are provided at the contact position between the outer wall of the wire drawing die 22 and the threaded hoop.

[0047] Reference Figure 1-6 As shown in this embodiment: two sets of through rods 111 are symmetrically fixed on the outer walls of both sides of the slide block 11. The axis of the through rods 111 is parallel to the guide rail 1. A collar 112 is fixedly installed on the upper surface of the slide block 11 at a corresponding position on one side of the through rods 111, and the through rods 111 slide through the collar 112.

[0048] Reference Figure 1-6 As shown in this embodiment: the outer wall of the through rod 111 is fitted with an elastic element for driving the slide block 11 to reset, and the two ends of the elastic element abut against the outer wall of one side of the collar 112 and one end of the through rod 111, respectively.

[0049] Reference Figure 1-6As shown in this embodiment: the outer walls of the pressure roller 14 and the positioning roller 15 are both provided with U-shaped grooves around the axis. The inner wall of the groove of the pressure roller 14 is in contact with the upper surface of the copper wire, and the inner wall of the groove of the positioning roller 15 is in contact with the lower surface of the copper wire. The U-shaped inner wall of the groove can fit tightly against the surface of the copper wire to prevent the copper wire from derailing and shifting.

[0050] Reference Figure 1-6 As shown in this embodiment: a pressure sensing device for real-time monitoring of traction force is provided at one end of the through rod 111. The pressure sensing device is connected to a control device for precisely controlling the forward and reverse rotation of the idle shaft servo motor 21 via a wire. The control device is connected to the idle shaft servo motor 21 via a wire.

[0051] A wire drawing method for a wire drawing device used in copper wire production includes the following steps:

[0052] S1. Pass the copper wire through the spline guide tube 121 and the wire drawing die 22, and place it between the groove of the pressure roller 14 and the positioning roller 15, so that the pressure roller 14 is suspended on the upper surface of the copper wire and the positioning roller 15 contacts the lower surface of the copper wire. At the same time, the copper wire needs to pass through the spline guide tube 121 to constrain its two ends axially, and the positioning roller 15 lifts the copper wire to keep it at the axis of the die.

[0053] S2. Start the empty shaft servo motor 21 to drive the wire drawing die 22 to rotate. When the copper wire travels, the wire pressing pattern 23 on the inner wall of the diameter reduction section forms a shallow spiral concave pattern on the surface of the copper wire. Constrained by the spline guide tube 121, the copper wire in this section does not produce a large axial rotation. When the copper wire continues to be squeezed to reduce the diameter, the copper layer flowing on the surface will fill and supplement the concave pattern. The pre-made spare space is used in conjunction with the cold lubricating fluid to reduce the scratching phenomenon.

[0054] S3. When the copper wire is stuck, the traction force increases. The drawing die 22 and the copper wire form a relatively tight integrated structure. The traction force drives the slide 11 to slide along the guide rail 1. The slide 11 drives the U-shaped swing arm 13 to rotate. Through the support rod 131, the pressure roller 14 presses down on the copper wire. At the same time, the positioning wheel 15 pulls the copper wire out of the discharge port in the opposite direction, forming a stuck, pressing, and pulling effect and pulling out the stuck part. After the stuck part passes, the elastic element drives the slide 11 and the pressure roller 14 to reset.

[0055] S4. The copper wire, after being embossed and reduced in diameter and drawn, is output from the outlet and enters the next process.

[0056] Working principle: First, the copper wire is passed through the spline guide tube 121 located in the wire-passing tube 12 at both ends of the guide rail 1, and the copper wire is passed through the feed port, the diameter reduction section, the smoothing section and the discharge port of the drawing die 22. At the same time, the copper wire is placed between the inner wall of the groove of the pressure roller 14 and the inner wall of the groove of the positioning roller 15, so that the inner wall of the groove of the pressure roller 14 contacts the upper surface of the copper wire, and the inner wall of the groove of the positioning roller 15 contacts the lower surface of the copper wire. The vertical height of the axis of the pressure roller 14 is higher than the height of the axis of the drawing die 22, and the vertical height of the axis of the positioning roller 15 is lower than the height of the axis of the drawing die 22.

[0057] The copper wire rough refers to copper wire rough with a large diameter that has not yet undergone diameter reduction drawing. The inner diameter of the spline guide tube 121 near the feed port matches that of the copper wire rough, so its inner diameter is larger than that of the other set of spline guide tubes 121. The function of the spline guide tube 121 is to constrain the two ends of the copper wire, namely the sections near the feed port and the section near the discharge port, increasing the resistance to axial rotation and preventing the stamping assembly 2 from causing the copper wires on both sides to rotate together, thus reducing the probability of the copper wire rotating and ensuring the stability of the drawing. The equipment can also restrict the copper wire near the discharge port through various clamping and fixing devices to further reduce the possibility of axial rotation. The positioning wheel 15 is closer to the discharge port and is always in contact with the lower surface of the copper wire rough, forming a "lifting" effect. Its function is to ensure that this section of copper wire is always located at the axis between the discharge port and the drawing die 22, avoiding creases caused by bending of the copper wire and reducing the quality of the drawing.

[0058] Next, the idle shaft servo motor 21 is started. The idle shaft servo motor 21, through the keyway opened on the inner wall of the output shaft tube 211, cooperates with the key strip 221 set on the outer wall of the wire drawing die 22, driving the wire drawing die 22 to rotate around its axis. When the copper wire moves forward under the action of traction force, the wire pressing texture 23 set on the inner wall of the diameter reduction section of the wire drawing die 22 performs circumferential uniform pressing treatment on the surface of the copper wire, so as to form a shallow spiral concave texture on the surface of the copper wire. Due to the restriction of the spline guide tubes 121 set at both ends, this section of copper wire Without significant axial rotation, the copper wire continues to move under the continuous pulling force. When the copper wire with shallow spiral grooves continues to be squeezed and compressed, the copper layer on its surface that is "flowing" due to the compression will fill and supplement the shallow spiral grooves. The excess space pressed into the surface of the copper wire in advance, namely the shallow spiral grooves, combined with the cold lubricant on the surface of the copper wire, reduces the impact of "roughness". Ultimately, it weakens the pits and unevenness on the surface of the copper wire caused by "roughness", and indirectly improves the drawing quality of the copper wire.

[0059] The traction force mentioned here refers to the traction device installed in the entire wire drawing production line. It should be noted that in conventional metal wire drawing production, in order to avoid the problem of excessive local tension, the metal wire is usually kept within a certain tension range. Within this range, the metal wire can be subjected to a certain limit of local traction and pulling force, which will not directly lead to the problem of excessive tension.

[0060] Excessive tension refers to tension that is too high or too low, also known as localized excessive tightness or excessive looseness. Excessive tightness can cause the wire to break, while excessive looseness can cause the wire to derail and become entangled. "Scuffing" in wire processing refers to the surface defects such as continuous or discontinuous fine scratches, furrows, tears, or metal accumulation / flow that occur on the wire surface during plastic deformation and diameter reduction in the diameter reduction section of the drawing die 22. These defects arise due to lubrication failure, microscopic adhesion, or the intervention of hard particles, caused by high pressure, high temperature, and high-speed sliding friction between the wire surface and the die's inner wall.

[0061] Furthermore, when the copper wire gets stuck during its journey, causing an increase in traction force, this refers to situations where the diameter reduction span is too large, i.e., the copper wire is drawn from a coarse material into an extremely fine wire in one step, or the cooling fluid gradually fails due to high-temperature friction when the working time is long, or copper chips accumulate continuously in one place during processing, preventing the copper wire from passing through the drawing die 22 in a timely and smooth manner. In these cases, the tension of the copper wire on the pressure roller 14 will increase.

[0062] Because the copper wire is stuck at the diameter reduction point, it can be regarded as a relatively tight integrated structure between the drawing die 22 and the copper wire. At this time, the continuous traction force of the traction device on the copper wire will drive the entire drawing die 22 and the slide block 11 to slide to one side along the guide rail 1. Then the U-shaped swing rod 13 is pulled and rotates. The U-shaped swing rod 13 is then driven by the support rod 131. As a result, the pressure roller 14 slightly presses down on the copper wire. The slide block 11 can be displaced a short distance. Similarly, the pressure value preset by the pressure sensor is small, so as to avoid the copper wire from being too tight and breaking due to excessive reverse pulling. With the help of the positioning roller 15, the copper wire near the discharge port of the drawing die 22 is pulled back a distance to pull out the stuck copper wire in time, forming the effect of "one stuck, one pressed, one pulled" to avoid the copper wire from being stuck continuously.

[0063] Once the jamming point is successfully passed, the elastic element drives the slide block 11 and pressure roller 14 to reset.

[0064] Next, the copper wire, after being embossed and drawn by the wire drawing die 22, is output from the discharge port of the wire drawing die 22 and smoothly enters the next process.

[0065] Through the coordinated operation of the above components, the device achieves circumferential uniform embossing on the surface of the copper wire and adaptive adjustment of the copper wire tension, thereby improving the wire drawing quality.

[0066] The technical scope of this invention is not limited to the content described above. Those skilled in the art can make various modifications and variations to the above embodiments without departing from the technical concept of this invention, and all such modifications and variations should fall within the protection scope of this invention.

Claims

1. A wire drawing device for copper wire production, characterized in that, The system includes a guide rail, on the surface of which a slide block is slidably mounted. An embossing component is mounted on the upper surface of the slide block to reduce the roughening phenomenon on the surface of the copper wire by embossing the surface of the traveling copper wire. An adjustment component is mounted and fixed on the upper surface of the guide rail to assist the embossing component and to adjust the tension of one end of the copper wire while the copper wire is stuck and generates a large traction force. The embossing assembly includes a hollow shaft servo motor fixedly mounted on the upper surface of the slide block. An output shaft tube is provided at the shaft center of the hollow shaft servo motor, and a wire drawing die is inserted through the shaft center of the output shaft tube. The wire drawing die consists of an inlet, a diameter reduction section, a smoothing section, and an outlet arranged in sequence, with their axes coinciding. The inner wall of the diameter reduction section of the wire drawing die is provided with wire pressing texture. The adjustment assembly includes a U-shaped rocker arm rotatably mounted on the side wall of the slide block. A pressure roller is rotatably mounted on the outer wall of the U-shaped rocker arm at the middle position of the end away from the slide block, and the vertical height of the axis of the pressure roller is higher than the height of the axis of the wire drawing die. Two sets of support rods are symmetrically and rotatably mounted on the upper surface of the slide block, and the outer wall of one end of each support rod is hinged to a U-shaped swing rod.

2. The wire drawing device for copper wire production according to claim 1, characterized in that: The outer wall of the wire drawing die is provided with multiple sets of key bars arranged in an equiangular array around the axis, and the inner wall of the output shaft tube is provided with keyways of matching size and shape at the contact position with the key bars.

3. The wire drawing device for copper wire production according to claim 1, characterized in that: A positioning wheel is rotatably mounted on the upper surface of the slide block between the pressure roller and the wire drawing die inlet, and the vertical height of the positioning wheel axis is lower than the height of the wire drawing die axis.

4. The wire drawing device for copper wire production according to claim 1, characterized in that: At both ends of the upper surface of the guide rail, a wire-threading tube is fixedly installed by a bracket. The wire-threading tube coincides with the axis of the wire drawing die, and the inner wall of the wire-threading tube and the wire drawing die are both inserted with copper wire. The outer wall of the pressure roller and the positioning roller are both provided with a U-shaped groove around the axis. The inner wall of the groove of the pressure roller is in contact with the upper surface of the copper wire, and the inner wall of the groove of the positioning roller is in contact with the lower surface of the copper wire.

5. The wire drawing device for copper wire production according to claim 1, characterized in that: A limit ring is fixed to the outer wall of the wire drawing die near the discharge port, and a threaded hoop is threaded onto the outer wall of the wire drawing die away from the limit ring. A matching thread is provided at the contact position between the outer wall of the wire drawing die and the threaded hoop.

6. The wire drawing device for copper wire production according to claim 4, characterized in that: Two sets of through rods are symmetrically fixed on the outer walls of both sides of the slide. The axis of the through rod is parallel to the guide rail. A collar is fixedly installed on the upper surface of the slide at a position corresponding to one side of the through rod, and the through rod slides through the collar.

7. The wire drawing device for copper wire production according to claim 6, characterized in that: The outer wall of the through rod is fitted with an elastic element for driving the slide to reset. The two ends of the elastic element abut against the outer wall of one side of the collar and one end of the through rod, respectively.

8. The wire drawing device for copper wire production according to claim 4, characterized in that: The copper wire body passes through the inner wall of the spline guide tube, and the inner wall of the spline guide tube is provided with multiple sets of anti-rotation grooves arranged in an equiangular array around the axis to increase the rotation resistance of the copper wire.

9. The wire drawing device for copper wire production according to claim 7, characterized in that: A pressure sensor for real-time monitoring of traction force is installed at one end of the through rod. The pressure sensor is connected to a control device for precisely controlling the forward and reverse rotation of the hollow shaft servo motor via a wire. The control device is also connected to the hollow shaft servo motor via a wire.

10. The wire drawing method of the wire drawing apparatus for copper wire production as described in any one of claims 1-9, characterized in that: Includes the following steps: S1. Pass the copper wire through the spline guide tube and the drawing die, and place it between the groove of the pressure roller and the positioning roller, so that the pressure roller is suspended on the upper surface of the copper wire and the positioning roller contacts the lower surface of the copper wire. At the same time, the copper wire needs to pass through the spline guide tube to constrain its two ends axially, and the positioning roller lifts the copper wire to keep it at the axis of the die. S2. Start the empty shaft servo motor to drive the wire drawing die to rotate. When the copper wire travels, the wire pressing pattern on the inner wall of the diameter reduction section forms a shallow spiral groove on the surface of the copper wire. Constrained by the spline guide tube, the copper wire in this section does not produce a large axial rotation. When the copper wire continues to be squeezed to reduce the diameter, the copper layer flowing on the surface will fill and supplement the groove. The pre-made spare space is used in conjunction with the cold lubricating fluid to reduce the scratching phenomenon. S3. When the copper wire is stuck, the traction force increases, and the drawing die and the copper wire form a relatively tight integrated structure. The traction force drives the slide to slide along the guide rail, and the slide drives the U-shaped swing arm to rotate. Through the support rod transmission, the pressure roller presses down on the copper wire. At the same time, the positioning wheel pulls the copper wire out of the discharge port in the opposite direction, forming a stuck, pressing, and pulling effect and pulling out the stuck part. After the stuck part passes, the elastic element drives the slide and pressure roller to reset. S4. The copper wire, after being embossed and reduced in diameter and drawn, is output from the outlet and enters the next process.

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