Drawing equipment and method for superfine copper wire

Abstract

The invention relates to the technical field of wire drawing machines, in particular to a drawing device and method for a superfine copper wire, and the device comprises a rotating disc which rotates along the axis of the rotating disc; the first power mechanism drives the turntable to rotate; the pulling mechanism is used for pulling the copper wire to advance; the drawing die is used for processing a copper wire; the pulling mechanism comprises a mounting seat, a pull rod, a pull rod and a pull rod, the two upper rotating wheels rotate on the mounting seat; the two lower rotating wheels rotate on the mounting seat; the two upper rotating wheels and the two lower rotating wheels are kept rotating synchronously; the two chain type assemblies are wound on the two upper rotating wheels and the two lower rotating wheels respectively; the two pressure strips are arranged between the two upper rotating wheels and the two lower rotating wheels respectively and abut against the two chain type assemblies respectively; the second power mechanism drives one lower rotating wheel to rotate; the copper wire penetrates through the space between the two chain type assemblies. The invention can effectively solve the problem that the conventional equipment is easy to slip to influence the normal processing of the wire when processing the superfine metal wire.

Description

Technical Field

[0001] The invention relates to the technical field of wire drawing machines, and in particular to a drawing device and method for ultra-fine copper wires. Background Art

[0002] The metal wire drawing machine is an industrial equipment that stretches the metal material through a die to make its diameter smaller and its length longer, so as to process it into metal wires of various specifications. The main structure of the metal wire drawing machine has two turntables, and a drawing die is set between the turntables. The metal wire is wound around the two turntables for 1~2 turns and passes through the drawing die, and then the turntable is started to rotate to draw the metal wire. It can be seen that the main driving force for the metal wire to move forward is the friction between the wire and the turntable. When the wire diameter is thicker, the wire can have sufficient contact with the turntable, so the pulling force generated on the wire can enable the wire to pass through the drawing die smoothly. However, when processing ultra-fine metal wires, at this time, due to the small diameter of the wire, the contact between the wire and the turntable is small, and the wire may be stained with coolant or lubricant during the drawing process, which makes the metal wire easy to slip on the turntable, making the pull of the turntable on the metal wire insufficient, seriously affecting the normal processing of the wire. Summary of the invention

[0003] The present invention provides an ultra-fine copper wire drawing device and method, which can effectively solve the problem that the existing equipment in the background technology is easy to slip when processing ultra-fine metal wires, affecting the normal processing of the wires.

[0004] The present invention provides an ultra-fine copper wire drawing device, comprising: The turntable rotates along its own axis; The first power mechanism drives the turntable to rotate; A pulling mechanism, used to pull the copper wire forward; The pulling and drawing mechanism is set between the turntable and the pulling mechanism and is used to process the copper wire; The pulling mechanism includes: Mounting base, independent fixed setting; Two upper rotating wheels, both rotating on mounting seats and aligned with each other in the direction of travel of the copper wire; Two lower rotating wheels, both rotating on the mounting base and aligned with each other in the direction of travel of the copper wire; The two upper rotating wheels and the two lower rotating wheels rotate synchronously; two chain assemblies, respectively wound around the two upper rotating wheels and the two lower rotating wheels; Two pressure bars are respectively arranged between the two upper rotating wheels and between the two lower rotating wheels, and respectively abut against the two chain assemblies; The second power mechanism drives a lower rotating wheel to rotate; The copper wire passes between the two chain components.

[0005] Further, the chain assembly includes a plurality of chain blocks; the top and bottom surfaces of each chain block are planar structures, and each chain block also has: A driving column is fixedly arranged on the chain block; A hinged column is arranged on one side of the bottom surface of the chain block; An articulation groove is arranged on the other side of the bottom surface of the chain block and is aligned with the articulation column; The upper rotating wheel and the lower rotating wheel are both provided with a clamping groove for clamping the driving column; Two annular grooves corresponding to the two chain components are arranged on the mounting seat, and the hinge column in each chain component also extends into the corresponding annular groove.

[0006] Furthermore, a roller is arranged at one end of the hinged column extending into the annular groove.

[0007] Furthermore, a rubber block is fixedly arranged on the bottom surface of each chain block.

[0008] Furthermore, an arc-shaped groove is arranged on the bottom surface of each rubber block, and the extending direction of the arc-shaped groove is the same as the traveling direction of the copper wire.

[0009] Furthermore, the two pressure bars are fixedly mounted on the mounting seat, and the distance between the two pressure bars gradually decreases along the running direction of the copper wire.

[0010] Furthermore, two elastic mechanisms are provided on the mounting seat, corresponding to the two pressure bars respectively, and each elastic mechanism includes: A fixing block, fixedly mounted on a mounting base; Two sliding shafts slide vertically on the fixed block, and one end of the two sliding shafts is respectively hinged to the two ends of the same pressure bar; Two springs are respectively sleeved on the two sliding shafts, and two ends of each spring respectively abut against the fixed block and the pressure bar.

[0011] Furthermore, two threaded sleeves are provided on the fixed block, the two sliding shafts pass through the two threaded sleeves respectively, and one end of the two springs is against the threaded sleeves.

[0012] Furthermore, guide sleeves are provided at both ends of the mounting seat, and the copper wire passes through the guide sleeves.

[0013] The present invention also provides a method for drawing an ultra-fine copper wire, which is used in the above-mentioned ultra-fine copper wire drawing equipment, comprising: S10: grinding the end of the copper wire to reduce the diameter of the end of the copper wire; S20: Wrap the copper wire around the turntable for 1 to 2 turns, then pass it through the pulling mechanism, and then pass the end of the copper wire through the entire pulling mechanism; S30: Keep the first power mechanism stopped, and start the second power mechanism to make the lower rotating wheel rotate slowly until the copper wire is taut; S40: Start the first power mechanism and the second power mechanism to make the turntable and the lower rotating wheel reach the set working speed to achieve the drawing process of the copper wire.

[0014] The technical solution of the present invention can achieve the following technical effects: The present invention has specially designed the pulling mechanism, and two chain components are used to clamp the copper wire, which effectively increases the contact area with the copper wire, thereby improving the pulling and driving effect on the copper wire and ensuring the normal processing of the copper wire. When pulling the copper wire, the clamping force on the copper wire is provided by two pressure bars, so most of the torque of the second power mechanism can still be used to drive the movement of the copper wire, thereby ensuring the pulling ability of the pulling mechanism. At the same time, since ultra-fine copper wire is easy to break, the traditional winding pulling method will cause the copper wire to have certain bends and entanglements, which will increase the risk of copper wire breakage. The present drawing equipment can keep the copper wire in a straight state after the copper wire is processed, thereby effectively protecting the copper wire. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0016] Figure 1 It is a schematic diagram of the structure of the ultra-fine copper wire drawing equipment of the present invention; Figure 2 It is a schematic diagram of the back structure of the pulling mechanism in the present invention; Figure 3 This is a front structural diagram of the pulling mechanism of the present invention (part of the mounting seat structure is hidden); Figure 4 It is a schematic diagram of the structure of the chain block in the present invention; Figure 5 It is a structural schematic diagram of another view of the chain block in the present invention; Figure 6 It is a position relationship diagram of the upper and lower chain blocks in the present invention when they are about to enter the compacting section; Figure 7 This is a schematic diagram of the structure when the elastic mechanism is used to install the pressure strip in the present invention; Figure 8 For the present invention Figure 7 A magnified image of point A; Fig. 9It is a schematic diagram of the overall structure of the upper sub-seat in the present invention; Fig.10 It is a schematic diagram of the overall structure of the lower sub-seat in the present invention; Attached to the drawing are: 1. turntable; 2. pull-pull mold; 3. mounting seat; 31. annular groove; 32. fixed block; 33. sliding shaft; 34. spring; 35. threaded sleeve; 4. upper rotating wheel; 5. lower rotating wheel; 6. chain assembly; 6a. clamping section; 6b. return section; 61. chain block; 62. driving column; 63. hinged column; 64. hinged groove; 65. roller; 66. rubber block; 7. pressure bar; 8. guide sleeve. DETAILED DESCRIPTION

[0017] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0018] In the description of the present invention, it should be noted that the orientations or positional relationships indicated by “center”, “up”, “down”, “left”, “right”, “vertical”, “horizontal”, “inside” and “outside”, etc., are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0019] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0020] The present invention relates to a drawing device for ultra-fine copper wire, such as Figure 1 As shown, the main structure includes: The overall frame structure of the drawing equipment fixed on the ground can carry various components of the drawing equipment; The turntable 1 is mounted on the frame structure, and the turntable 1 can rotate along its own axis; The first power mechanism is usually a servo motor with adjustable speed, which is connected to the turntable 1 to drive the turntable 1 to rotate; A pulling mechanism, used to pull the copper wire forward; The drawing mold 2 is arranged between the rotating disk 1 and the pulling mechanism, and is used for processing the copper wire. A conical processing hole is arranged inside the drawing mold 2, and the copper wire enters from the end with a larger diameter of the processing hole, and the diameter becomes smaller under the extrusion of the processing hole, and then comes out from the end with a smaller diameter of the processing hole; In addition to the above main structures, an unwinding mechanism for the copper wire before unwinding can be installed in front of the turntable 1 according to processing requirements, a winding mechanism for the copper wire after winding can be installed behind the pulling mechanism, and a nozzle for spraying coolant can be installed above the drawing mold 2. The above mechanisms are all existing technologies and will not be described in detail here.

[0021] When drawing the copper wire, the copper wire is wound around the turntable 1 for 1 to 2 turns, and then passed through the drawing touch 2. After that, the end of the copper wire is passed through the entire drawing mechanism. The drawing mechanism provides power for the copper wire to move forward, so that the copper wire continuously passes through the drawing touch 2, thereby realizing the processing of the copper wire.

[0022] In the existing drawing equipment, the pulling mechanism is usually similar to the structure of the turntable 1. When processing ultra-fine copper wire, the pulling force on the copper wire is insufficient due to the small contact surface with the copper wire. Therefore, the pulling mechanism of the drawing equipment is redesigned, and its structure is as follows: Figure 2~3 As shown, including: The mounting base 3 is fixedly mounted on the frame structure or the ground so that the mounting base 3 remains stationary during the entire processing process; The two upper rotating wheels 4 are both mounted on the mounting base 3 and rotate along their own axes and are aligned with each other in the direction of travel of the copper wire, that is, the line connecting the center points of the two upper rotating wheels 4 is parallel to the direction of travel of the copper wire; The two lower rotating wheels 5 are both mounted on the mounting seat 3 and rotate along their own axes and are aligned with each other in the direction of travel of the copper wire, that is, the line connecting the center points of the two lower rotating wheels 5 is parallel to the direction of travel of the copper wire; the two lower rotating wheels 5 are respectively aligned with the two upper rotating wheels 4 in a direction perpendicular to the direction of travel of the copper wire; The two upper wheels 4 and the two lower wheels 5 are connected to each other by a gear set or a belt transmission method, so that the four wheels can keep rotating synchronously; Two chain assemblies 6 are respectively wound around the two upper rotating wheels 4 and the two lower rotating wheels 5; Two pressure bars 7 are respectively arranged between the two upper rotating wheels 4 and between the two lower rotating wheels 5, and respectively abut against the two chain assemblies 6; The second power mechanism drives a lower rotating wheel 5 closest to the pull-out mold 2 to rotate; During processing, the copper wire passes between the two chain components 6.

[0023] The specific working principle of the above pulling mechanism is as follows: like Figure 3As shown, if the part of each chain assembly 6 between the two pressure bars 7 is recorded as the clamping section 6a and the rest is recorded as the return section 6b; when there is no copper wire passing through, under the limitation of the two pressure bars 7, the clamping sections 6a of the two chain assemblies 6 will be in a state of close contact with each other; then when the copper wire is processed, the copper wire will pass between the two clamping sections 6a, and at this time, the clamping sections 6a of the two chain assemblies 6 will clamp the copper wire under the limitation of the two pressure bars 7, and with the rotation of the upper rotating wheel 4 and the lower rotating wheel 5, the clamping section 6a will move forward as a whole, thereby driving the copper wire to move.

[0024] It can be seen that the pulling mechanism clamps the copper wire through two chain components 6, which effectively increases the contact area with the copper wire, thereby improving the pulling and driving effect on the copper wire and ensuring the normal processing of the copper wire. When pulling the copper wire, the clamping force on the copper wire is provided by the two pressure bars 7, so most of the torque of the second power mechanism can still be used to drive the movement of the copper wire, thereby ensuring the pulling ability of the pulling mechanism. At the same time, since ultra-fine copper wire is easy to break, the traditional winding pulling method will cause the copper wire to bend and tangle to a certain extent, which will increase the risk of copper wire breakage. The present drawing equipment can keep the copper wire in a straight state after the copper wire is processed, thereby effectively protecting the copper wire.

[0025] The chain assembly 6 can be realized by using a chain in the prior art. It only needs to weld a plate on the side of each chain segment to realize the aforementioned clamping function. However, the existing chain mainly relies on the tension between the chain segments to transmit force. The transmission path is long, so the loss is large, and the hinge of the chain segment is easy to be damaged. In order to solve the above problems, the present drawing equipment provides a better structure of the chain assembly 6, including: Each chain assembly 6 is composed of a plurality of chain blocks 61; all chain blocks 61 have the same structure. Since the chain blocks 61 are not at the same angle everywhere in the two chain assemblies 6, for the convenience of description, the following is a single chain block 61 placed in the processing (i.e. Figures 4 and 5 The description is based on the form shown in the figure: The top and bottom surfaces of each chain block 61 are planar structures. When the chain block 61 moves to the pressing section 6a, the bottom surface of the chain block 61 clamps the copper wire, and the top surface of the chain block 61 presses against the pressure bar 7. In addition, each chain block 61 also has: The driving column 62 is fixedly arranged on the chain block 61; the height of the driving column 62 is lower than the top surface of the chain block 61; The hinge column 63 is arranged on one side of the bottom surface of the chain block 61, and a part of the side surface of the hinge column 63 protrudes from the bottom surface of the chain block 61; The hinge groove 64 is provided on the other side of the bottom surface of the chain block 61 and is aligned with the hinge column 63 in the width direction; The hinge column 63 and the driving column 62 are respectively located at two ends of the chain block 61, and when the chain block 61 is in the pressing section 6a, the hinge column 63 is farther away from the copper wire entrance of the pressing section 6a than the driving column 62; The upper rotating wheel 4 and the lower rotating wheel 5 are both provided with a slot in the circumferential direction for clamping the driving column 62; Two annular grooves 31 corresponding to the two chain components 6 are provided on the mounting base 3, and the two annular grooves 31 are respectively located on both sides of the copper wire to avoid mutual interference; the hinge column 63 in each chain component 6 also extends into the corresponding annular groove 31, thereby limiting the movement trajectory of the chain block 61 so that it can form a chain-shaped ring.

[0026] The specific working principle of the above chain assembly 6 is as follows: After the chain block 61 is installed, the chain block 61 will form a head-to-tail contact in the horizontal position (such as the straight part of the clamping section 6a and the return section 6b), and the slots of the upper and lower wheels 4 and 5 in the curved position will clamp the chain block 61 to drive the movement of the chain block 61.

[0027] When the copper wire enters the compression section 6a, Figure 6 As shown, the upper rotating wheel 4 and the lower rotating wheel 5 will respectively drive a chain block 61 to approach each other, and the hinged column 63 and the hinged groove 64 of the upper and lower chain blocks 61 will approach each other first. Since the two chain components 6 are symmetrical about the copper wire, the hinged column 63 of one chain block 61 will just correspond to the hinged groove 64 of the other chain block 61, and the hinged column 63 will enter the hinged groove 64. Then, with the rotation of the upper rotating wheel 4 and the lower rotating wheel 5, the two chain blocks 61 are further pushed forward and enter the pressing section 6a. When entering, the two chain blocks 61 will rotate with the hinged column 63 as the rotation axis, so that the bottom surfaces of the two chain blocks 61 clamp the copper wire, and then enter the middle. The top surfaces of the two chain blocks 61 are then pressed by the pressure bar 7 to keep the two chain blocks 61 clamping the copper wire, and in the process of entering, the two chain blocks 61 will push the two chain blocks 61 that have clamped the copper wire to move. When the chain block 61 reaches the copper wire outlet of the pressing section 6a, it will be driven by another upper rotating wheel 4 and a lower rotating wheel 5 to enter the return section 6b, so that the two chain blocks 61 are separated to release the clamping of the copper wire, and the chain block 61 will return to the copper wire entrance of the pressing section 6a through the return section 6b.

[0028] Every two chain blocks 61 will perform the above work here, so as to realize the function of continuously pulling the copper wire; and under this structure, the torque of the second power mechanism will be converted into thrust on the chain block 61, and the thrust is directly applied to the chain block 61 through the upper rotating wheel 4 and the lower rotating wheel 5, so the transmission distance is shorter, the transmission stability is higher, and it is less prone to damage. In addition, each chain block 61 can be replaced separately, and the number of chain blocks 61 can also be adjusted accordingly according to the required length of the actual chain assembly 6, thereby greatly reducing the processing and maintenance costs.

[0029] It is preferred to set a roller 65 at one end of the hinge column 63 extending into the annular groove 31 to reduce the friction when the chain block 61 moves, so as to ensure the stability and service life of the chain assembly 6. It is preferred to fix a rubber block 66 on the bottom surface of each chain block 61 by means of clamping or gluing, and the two chain blocks 61 will clamp the copper wire through the rubber block 66, which can not only increase the friction between the copper wire and the copper wire, but also have a certain protective effect on the surface of the copper wire, effectively reducing the scratches on the surface of the copper wire. The bottom surface of the rubber block 66 can slightly protrude from the bottom surface of the chain block 61, so that after the bottom surfaces of the two chain blocks 61 are attached, a large extrusion deformation will occur between the two rubber blocks 66, so as to better wrap the entire circumferential surface of the copper wire. An arc groove is set on the bottom surface of each rubber block 66, and the extension direction of the arc groove is the same as the travel direction of the copper wire. When the rubber block 66 clamps the copper wire, the copper wire will be stuck in the arc groove, so as to ensure the straightness of the copper wire.

[0030] The two pressure bars 7 can be directly fixed on the mounting base 3 in the simplest installation form. It is best to gradually reduce the spacing between the two pressure bars 7 along the traveling direction of the copper wire, so that the chain block 61 can clamp the copper wire tighter and tighter when moving between the two pressure bars 7 to ensure the pulling effect on the copper wire.

[0031] The direct fixing installation method is relatively simple, but it is not possible to adjust the force of the two chain blocks 61 clamping the copper wire. Therefore, the pressure bar 7 can also be used as follows: Figure 7-8 Install it in the following way: Two elastic mechanisms are provided on the mounting seat 3, corresponding to the two pressure bars 7 respectively, and each elastic mechanism includes: A fixing block 32, fixedly mounted on the mounting seat 3; Two sliding shafts 33, the first ends of the sliding shafts 33 extend into the fixed block 32 so that they can slide vertically on the fixed block 32, and the ends of the two sliding shafts 33 extending out of the fixed block 32 are respectively hinged to the two ends of the same pressure bar 7; The two springs 34 are respectively sleeved on the two sliding shafts 33 , and the two ends of each spring 34 respectively abut against the fixed block 32 and the pressure bar 7 .

[0032] Under this structure, the pressure exerted by the two chain blocks 61 on the copper wire is the pressure exerted by the two pressure bars 7 on the two chain blocks 61, which is the thrust exerted by the deformation of the spring 34. If you want to change the pressure exerted by the two chain blocks 61 on the copper wire at this time, you only need to replace the springs 34 with different elastic forces, or you can set two threaded sleeves 35 on the fixed block 32, and the two sliding shafts 33 pass through the two threaded sleeves 35 respectively, and one end of the two springs 34 is against the threaded sleeves 35. In this way, the depth of the threaded sleeves 35 screwed into the fixed block 32 can be adjusted by rotating the threaded sleeves 35, thereby adjusting the compression amount of the spring 34, and then changing the pressure exerted by the two pressure bars 7 on the two chain blocks 61.

[0033] Limiting bars are also provided on the upper and lower sides of the two pressure bars 7. The limiting bars are used to abut against each chain block 61 in the straight part of the return section 6b to ensure the position arrangement of the chain block 61 so that it can return smoothly. If necessary, the two ends of the limiting bar and the pressure bar 7 can be connected by an arc plate, which can limit the position of each chain block 61 in the curved part of the return section 6b to ensure that the upper rotating wheel 4 and the lower rotating wheel 5 can accurately clamp the chain block 61. An annular disk can also be provided on the limiting bar. The annular disk is similar to the overall shape of the chain assembly 6, and the side wall of the annular disk will abut against the side walls of all the chain blocks 61, thereby limiting the position of the chain block 61 perpendicular to the direction of travel of the copper wire.

[0034] In order to facilitate the installation of the drawing device, the mounting seat 3 can be divided into an upper sub-seat and a lower sub-seat. Figures 9 and 10 As shown, the upper rotating wheel 4 and its corresponding chain assembly 6 and pressure bar 7 will be installed on the upper sub-seat, and the lower rotating wheel 5 and its corresponding chain assembly 6 and pressure bar 7 will be installed on the lower sub-seat, which can facilitate the installation of the chain block 61. After the above components are assembled, the upper sub-seat can be hung above the lower sub-seat to make the upper and lower sub-seat fit together, and then the upper sub-seat is slowly lowered to align and fit the upper and lower chain blocks 61 in the pressing section 6a, and the upper and lower sub-seats corresponding to the pressing section 6a will be provided with through holes, so that personnel can move the upper and lower chain blocks 61 during installation to ensure that they can fit accurately.

[0035] The mounting seat 3 is also provided with guide sleeves 8 at both ends of the copper wire's travel direction, and a guide through hole is provided in the center of the sleeve 8. The end of the sleeve 8 extending into the mounting seat 3 will be as close as possible to the position where the copper wire enters and exits the clamping section 6a. When processing, the copper wire passes through the guide sleeve 8, which can limit the path of the copper wire and prevent the copper wire from deviating.

[0036] The present invention also relates to a method for drawing an ultra-fine copper wire, which is used in the above-mentioned ultra-fine copper wire drawing equipment, comprising: S10: grinding the end of the copper wire to reduce the diameter of the end of the copper wire to a size that can pass through the drawing mold 2; S20: Wrap the copper wire around the turntable 1 for 1 to 2 turns, then pass it through the pulling mechanism 2, and then pass the end of the copper wire through the entire pulling mechanism; S30: Keep the first power mechanism stopped and start the second power mechanism to make the lower rotating wheel 5 rotate slowly, and then the copper wire will be slowly pulled until the copper wire is taut; S40: Start the first power mechanism and the second power mechanism to make the turntable 1 and the lower rotating wheel 5 reach the set working speed to achieve the drawing process of the copper wire.

[0037] The above shows and describes the basic principles, main features and advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention to be protected. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. An ultra-fine copper wire drawing device, characterized in that: include: A turntable (1) rotates along its own axis; A first power mechanism drives the rotating disk (1) to rotate; A pulling mechanism, used to pull the copper wire forward; A pulling mold (2), arranged between the rotating disk (1) and the pulling mechanism, for processing the copper wire; Wherein, the pulling mechanism comprises: A mounting seat (3), independently fixedly arranged; Two upper rotating wheels (4) are both rotated on the mounting seat (3) and are aligned with each other in the direction of travel of the copper wire; Two lower rotating wheels (5) are both rotated on the mounting seat (3) and are aligned with each other in the direction of travel of the copper wire; The two upper rotating wheels (4) and the two lower rotating wheels (5) rotate synchronously; Two chain assemblies (6) are respectively wound around the two upper rotating wheels (4) and the two lower rotating wheels (5); Two pressure bars (7), respectively arranged between the two upper rotating wheels (4) and between the two lower rotating wheels (5), and respectively abutting against the two chain assemblies (6); A second power mechanism drives one of the lower rotating wheels (5) to rotate; The copper wire passes between the two chain components (6).

2. The ultra-fine copper wire drawing equipment according to claim 1, characterized in that: The chain assembly (6) comprises a plurality of chain blocks (61); the top and bottom surfaces of each chain block (61) are planar structures, and each chain block (61) further comprises: A driving column (62) is fixedly arranged on the chain block (61); A hinge column (63) is arranged on one side of the bottom surface of the chain block (61); A hinge groove (64) is arranged on the other side of the bottom surface of the chain block (61) and is aligned with the hinge column (63); The upper rotating wheel (4) and the lower rotating wheel (5) are both provided with a slot for clamping the driving column (62); The mounting seat (3) is provided with two annular grooves (31) respectively corresponding to the two chain assemblies (6), and the hinge column (63) in each chain assembly (6) also extends into the corresponding annular groove (31).

3. The ultra-fine copper wire drawing equipment according to claim 2, characterized in that: A roller (65) is provided at one end of the hinge column (63) extending into the annular groove (31).

4. The ultra-fine copper wire drawing equipment according to claim 2, characterized in that: A rubber block (66) is fixedly arranged on the bottom surface of each chain block (61).

5. The ultra-fine copper wire drawing equipment according to claim 4, characterized in that: An arc-shaped groove is arranged on the bottom surface of each rubber block (66), and the extending direction of the arc-shaped groove is the same as the traveling direction of the copper wire.

6. The ultra-fine copper wire drawing equipment according to claim 1, characterized in that: The two pressure bars (7) are fixedly mounted on the mounting seat (3), and the distance between the two pressure bars (7) gradually decreases along the running direction of the copper wire.

7. The ultra-fine copper wire drawing equipment according to claim 1, characterized in that: The mounting seat (3) is also provided with two elastic mechanisms, corresponding to the two pressure bars (7) respectively, and each of the elastic mechanisms comprises: A fixing block (32) fixedly mounted on the mounting seat (3); Two sliding shafts (33) slide vertically on the fixed block (32), and one end of the two sliding shafts (33) is respectively hinged to two ends of the same pressure bar (7); Two springs (34) are respectively sleeved on the two sliding shafts (33), and two ends of each spring (34) respectively abut against the fixed block (32) and the pressure bar (7).

8. The ultra-fine copper wire drawing equipment according to claim 7, characterized in that: Two threaded sleeves (35) are provided on the fixed block (32), the two sliding shafts (33) pass through the two threaded sleeves (35) respectively, and one end of the two springs (34) abuts against the threaded sleeves (35).

9. The ultra-fine copper wire drawing equipment according to claim 1, characterized in that: Guide sleeves (8) are also provided at both ends of the mounting seat (3), and the copper wire passes through the guide sleeves (8).

10. A method for drawing ultra-fine copper wire, characterized in that: The ultra-fine copper wire drawing device according to any one of claims 1 to 9 comprises: S10: grinding the end of the copper wire to reduce the diameter of the end of the copper wire; S20: Wrap the copper wire around the turntable (1) for 1 to 2 turns, then pass it through the pulling mechanism (2), and then pass the end of the copper wire through the entire pulling mechanism; S30: Keep the first power mechanism stopped and start the second power mechanism to make the lower rotating wheel (5) rotate slowly until the copper wire is taut; S40: starting the first power mechanism and the second power mechanism, so that the rotating disk (1) and the lower rotating wheel (5) reach the set working rotation speed, thereby realizing the drawing process of the copper wire.

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