Ultra-fine copper wire drawing equipment and method

Abstract

The present invention relates to the technical field of wire drawing machines, and in particular to an ultra-fine copper wire drawing device and method, wherein the device comprises a turntable that rotates along its own axis; a first power mechanism that drives the turntable to rotate; a pulling mechanism for pulling the copper wire forward; and a drawing mechanism for processing the copper wire. The pulling mechanism comprises: a mounting base that is independently fixed; two upper rotating wheels that both rotate on the mounting base; two lower rotating wheels that both rotate on the mounting base; the two upper rotating wheels and the two lower rotating wheels that maintain synchronous rotation; two chain assemblies that are respectively wound around the two upper rotating wheels and the two lower rotating wheels; two pressure bars that are respectively arranged between the two upper rotating wheels and between the two lower rotating wheels and respectively press against the two chain assemblies; a second power mechanism that drives a lower rotating wheel to rotate; and the copper wire passes between the two chain assemblies. The present invention can effectively solve the problem that existing equipment is prone to slipping when processing ultra-fine metal wires, which affects the normal processing of the wires.

Description

Technical Field

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

[0002] A metal wire drawing machine is an industrial device that stretches metal materials through a die, reducing their diameter and length, thereby processing them into metal wires of various specifications. The main structure of a metal wire drawing machine consists of two turntables with a drawing die placed between them. The metal wire is wrapped around the two turntables for one to two turns and passes through the drawing die. The turntables are then turned to draw the metal wire. It can be seen that the main driving force for the metal wire's movement is the friction between the wire and the turntables. When the wire diameter is thick, there is sufficient contact between the wire and the turntables, so the tension generated on the wire allows it to pass smoothly through the drawing die. However, when processing ultra-fine metal wire, due to the small diameter of the wire, the contact between the wire and the turntable is reduced. Furthermore, the wire may be contaminated by coolant or lubricant during the drawing process, causing the metal wire to slip on the turntables. This results in insufficient pulling force on the metal wire, 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 in the background art that the existing equipment is prone to slipping 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:

[0005] Turntable, which rotates along its own axis;

[0006] The first power mechanism drives the turntable to rotate;

[0007] Pulling mechanism, used to pull the copper wire forward;

[0008] The pulling mechanism is set between the turntable and the pulling mechanism and is used to process copper wire;

[0009] The pulling mechanism includes:

[0010] Mounting base, independent fixed setting;

[0011] Two upper rotating wheels, both rotating on mounting bases and aligned with each other in the direction of travel of the copper wire;

[0012] Two lower rotating wheels, both rotating on mounting bases and aligned with each other in the direction of travel of the copper wire;

[0013] The two upper wheels and the two lower wheels rotate synchronously;

[0014] two chain assemblies, respectively wound around the two upper rotating wheels and the two lower rotating wheels;

[0015] Two pressure bars are respectively arranged between the two upper rotating wheels and between the two lower rotating wheels, and respectively press against the two chain assemblies;

[0016] The second power mechanism drives a lower rotating wheel to rotate;

[0017] The copper wire passes between the two chain components.

[0018] Furthermore, 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:

[0019] A driving column is fixedly arranged on the chain block;

[0020] A hinged column is provided on one side of the bottom surface of the chain block;

[0021] an articulation groove, provided on the other side of the bottom surface of the chain block and aligned with the articulation post;

[0022] The upper rotating wheel and the lower rotating wheel are both provided with a slot for clamping the driving column;

[0023] Two annular grooves corresponding to the two chain components are provided on the mounting seat, and the hinge column in each chain component also extends into the corresponding annular groove.

[0024] Furthermore, a roller is provided on one end of the hinged column extending into the annular groove.

[0025] Furthermore, a rubber block is fixedly arranged on the bottom surface of each chain block.

[0026] Furthermore, an arc-shaped groove is provided 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.

[0027] Furthermore, the two pressure bars are fixedly mounted on the mounting seat, and the distance between the two pressure bars gradually decreases along the traveling direction of the copper wire.

[0028] Furthermore, the mounting base is provided with two elastic mechanisms, corresponding to the two pressure bars respectively, and each elastic mechanism includes:

[0029] A fixing block, fixedly mounted on the mounting base;

[0030] Two sliding shafts slide vertically on the fixed block, and one end of the two sliding shafts is hinged to the two ends of the same pressure bar;

[0031] Two springs are respectively sleeved on the two sliding shafts, and two ends of each spring respectively press against the fixed block and the pressure bar.

[0032] 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.

[0033] Furthermore, guide sleeves are provided at both ends of the mounting seat, and the copper wire passes through the guide sleeves.

[0034] 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:

[0035] S10: Grinding the end of the copper wire to reduce the diameter of the end of the copper wire;

[0036] 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;

[0037] S30: Keep the first power mechanism stopped and start the second power mechanism to rotate the lower rotating wheel slowly until the copper wire is taut;

[0038] S40: Start the first power mechanism and the second power mechanism to make the turntable and the lower wheel reach the set working speed to achieve the drawing process of the copper wire.

[0039] The technical solution of the present invention can achieve the following technical effects:

[0040] The present invention has a special design for the pulling mechanism. 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. Therefore, 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 the copper wire breaking. However, the present drawing equipment can keep the copper wire in a straight state after processing, thereby effectively protecting the copper wire. BRIEF DESCRIPTION OF THE DRAWINGS

[0041] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. 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 any creative work.

[0042] Figure 1 Schematic diagram of the structure of the ultra-fine copper wire drawing equipment of the present invention;

[0043] Figure 2This is a schematic diagram of the back structure of the pulling mechanism in the present invention;

[0044] Figure 3 This is a front structural diagram of the pulling mechanism of the present invention (part of the mounting seat structure is hidden);

[0045] Figure 4 Schematic diagram of the structure of the chain block in the present invention;

[0046] Figure 5 It is a structural schematic diagram of another view of the chain block in the present invention;

[0047] Figure 6 This is a diagram showing the positional relationship between the upper and lower chain blocks in the present invention when they are about to enter the compacting section;

[0048] Figure 7 This is a schematic diagram of the structure when the elastic mechanism is used to install the pressure bar in the present invention;

[0049] Figure 8 For the present invention Figure 7 A magnified view of point A;

[0050] Figure 9 Schematic diagram of the overall structure of the upper seat in the present invention;

[0051] Figure 10 Schematic diagram of the overall structure of the lower sub-seat in the present invention;

[0052] Figure numerals: 1. turntable; 2. pull-pull touch; 3. mounting seat; 31. annular groove; 32. fixed block; 33. sliding shaft; 34. spring; 35. threaded sleeve; 4. upper turntable; 5. lower turntable; 6. chain assembly; 6a. pressing 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

[0053] The technical solutions in the embodiments of the present invention will be clearly and completely described 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.

[0054] 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” 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, and do not indicate or imply that the device or element referred to 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.

[0055] In the description of the present invention, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they may refer to fixed, detachable, or integral connections; they may refer to mechanical or electrical connections; they may refer to direct connections or indirect connections through an intermediate medium; and they may refer to internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on the specific circumstances.

[0056] The present invention relates to an ultra-fine copper wire drawing device, such as Figure 1 As shown, the main structure includes:

[0057] The overall frame structure of the drawing equipment fixed on the ground can carry various components of the drawing equipment;

[0058] The turntable 1 is mounted on the frame structure and can rotate along its own axis;

[0059] 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;

[0060] Pulling mechanism, used to pull the copper wire forward;

[0061] The drawing mold 2 is provided between the turntable 1 and the pulling mechanism and is used for processing the copper wire. A tapered processing hole is provided inside the drawing mold 2. The copper wire enters from the end with a larger diameter of the processing hole, and its 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.

[0062] In addition to the main structure described above, a reeling mechanism for the copper wire before unwinding can be installed in front of the turntable 1, a reeling mechanism for the copper wire after rewinding 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.

[0063] When drawing the copper wire, the copper wire will be wound around the turntable 1 for 1 to 2 times, then passed through the drawing touch 2, and then the end of the copper wire will be 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.

[0064] 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. Its structure is as follows Figures 2 and 3 Shown, including:

[0065] 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;

[0066] 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;

[0067] The two lower rotating wheels 5 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 lower rotating wheels 5 is parallel to the direction of travel of the copper wire; the two lower rotating wheels 5 are aligned with the two upper rotating wheels 4 respectively at right angles to the direction of travel of the copper wire;

[0068] 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;

[0069] Two chain assemblies 6 are respectively wound around the two upper rotating wheels 4 and the two lower rotating wheels 5;

[0070] Two pressure bars 7 are respectively arranged between the two upper rotating wheels 4 and between the two lower rotating wheels 5, and respectively press against the two chain assemblies 6;

[0071] The second power mechanism drives the lower rotating wheel 5 closest to the pulley 2 to rotate;

[0072] During processing, the copper wire passes between the two chain components 6.

[0073] The specific working principle of the above pulling mechanism is as follows:

[0074] like Figure 3 As shown, if the part of each chain component 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 components 6 will be in a state of mutual adhesion; 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 components 6 will clamp the copper wire under the limitation of the two pressure bars 7, and as the upper turntable 4 and the lower turntable 5 rotate, the clamping section 6a will move forward as a whole, thereby driving the copper wire to move.

[0075] 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 the copper wire breaking. However, the present drawing equipment can keep the copper wire in a straight state after processing, thereby effectively protecting the copper wire.

[0076] The chain assembly 6 can be implemented using a chain in the prior art. The aforementioned clamping function can be achieved simply by welding a plate to the side of each chain segment. However, the existing chain mainly relies on the tension between the chain segments to transmit force, resulting in a long transmission path and therefore high losses. Furthermore, the hinges of the chain segments are easily damaged. To address the above issues, the present drawing device provides a more optimal chain assembly 6 structure, including:

[0077] 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 all at the same angle in the two chain assemblies 6, for the convenience of description, the following is a single chain block 61 placed in the form of processing (i.e. Figures 4 and 5 The description is based on the form shown in the figure:

[0078] 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 will clamp the copper wire, and the top surface of the chain block 61 will press against the pressure bar 7. In addition, each chain block 61 also has:

[0079] The driving column 62 is fixedly mounted on the chain block 61; the height of the driving column 62 is lower than the top surface of the chain block 61;

[0080] The hinge column 63 is provided on one side of the bottom surface of the chain block 61, and a portion of the side surface of the hinge column 63 protrudes from the bottom surface of the chain block 61;

[0081] 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;

[0082] The hinge column 63 and the driving column 62 are respectively located at both ends of the chain block 61, and when the chain block 61 is in the compression section 6a, the hinge column 63 is farther away from the copper wire entrance of the compression section 6a than the driving column 62;

[0083] 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;

[0084] Two annular grooves 31 corresponding to the two chain components 6 are provided on the mounting base 3. The two annular grooves 31 are 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.

[0085] The specific working principle of the above chain component 6 is as follows:

[0086] 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.

[0087] 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 each drive a chain block 61 to approach each other, and the hinge columns 63 and hinge grooves 64 of the upper and lower chain blocks 61 will first approach each other. Since the two chain components 6 are symmetrical about the copper wire, the hinge column 63 of one chain block 61 will just correspond to the hinge groove 64 of the other chain block 61, and the hinge column 63 will enter the hinge groove 64. Then, as the upper rotating wheel 4 and the lower rotating wheel 5 rotate, the two chain blocks 61 are pushed forward and enter the pressing section 6a. During entry, the two chain blocks 61 will rotate around the hinge 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, maintaining the clamping of the two chain blocks 61 on the copper wire. During the entry process, the two chain blocks 61 will push the two chain blocks 61 that have already clamped the copper wire to move. When the chain block 61 reaches the copper wire outlet of the compacting section 6a, it will be driven by the other upper rotary wheel 4 and the lower rotary wheel 5 to enter the return section 6b, so that the two chain blocks 61 are separated, thereby releasing the clamping of the copper wire. The chain block 61 will return to the copper wire entrance of the compacting section 6a through the return section 6b.

[0088] Each of the two chain blocks 61 performs the aforementioned operation, continuously pulling the copper wire. In this structure, the torque of the second power mechanism is converted into thrust on the chain blocks 61, which is applied directly via the upper and lower wheels 4 and 5. This shortens the transmission distance, improves transmission stability, and reduces damage. Furthermore, each chain block 61 can be replaced individually, and the number of chain blocks 61 can be adjusted based on the required length of the chain assembly 6, significantly reducing processing and maintenance costs.

[0089] Preferably, a roller 65 is provided at one end of the hinged column 63 that extends into the annular groove 31 to reduce friction during movement of the chain block 61, thereby ensuring the smooth operation and service life of the chain assembly 6. Preferably, a rubber block 66 is fixedly installed on the bottom surface of each chain block 61 by means of snapping or gluing. The two chain blocks 61 will clamp the copper wire through the rubber block 66, which not only increases the friction between the copper wire and the rubber block 66, but also provides a certain degree of protection for the surface of the copper wire, effectively reducing scratches on the copper wire surface. The bottom surface of the rubber block 66 can slightly protrude from the bottom surface of the chain block 61, so that when the bottom surfaces of the two chain blocks 61 are in contact, a large extrusion deformation will occur between the two rubber blocks 66, thereby better wrapping the entire circumferential surface of the copper wire. The bottom surface of each rubber block 66 is provided with an arc groove, the extension direction of the arc groove being the same as the direction of travel of the copper wire. When the rubber block 66 clamps the copper wire, the copper wire will be stuck in the arc groove, thereby ensuring the straightness of the copper wire.

[0090] The two pressure bars 7 can be directly fixedly mounted on the mounting base 3 in the simplest installation form. It is best to gradually reduce the distance between the two pressure bars 7 along the direction of travel of the copper wire. In this way, the chain block 61 can clamp the copper wire tighter and tighter when moving between the two pressure bars 7, thereby ensuring the pulling effect on the copper wire.

[0091] 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: Figures 7 and 8 Install it in the following way:

[0092] Two elastic mechanisms are provided on the mounting base 3, corresponding to the two pressure bars 7 respectively. Each elastic mechanism includes:

[0093] A fixing block 32 is fixedly mounted on the mounting base 3;

[0094] Two sliding shafts 33, the first ends of the sliding shafts 33 will 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 will be hinged to the two ends of the same pressure bar 7 respectively;

[0095] The two springs 34 are respectively sleeved on the two sliding shafts 33 , and the two ends of each spring 34 respectively press against the fixed block 32 and the pressure bar 7 .

[0096] Under this structure, the pressure generated by the two chain blocks 61 on the copper wire is the pressure generated by the two pressure bars 7 on the two chain blocks 61, which is the thrust generated by the deformation of the spring 34. At this time, if you want to change the pressure of the two chain blocks 61 on the copper wire, 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, by rotating the threaded sleeves 35, the depth of its screwing into the fixed block 32 can be adjusted, thereby adjusting the compression amount of the spring 34, and then changing the pressure generated by the two pressure bars 7 on the two chain blocks 61.

[0097] Limit bars are also provided on the upper and lower sides of the two pressure bars 7. The limit bars are used to press against the chain blocks 61 in the straight portion of the return section 6b, ensuring the position of the chain blocks 61 so that they can return smoothly. If necessary, the limit bars and the pressure bars 7 can be connected at both ends by an arc-shaped plate. The arc-shaped plate can limit the position of the chain blocks 61 in the curved portion of the return section 6b, ensuring that the upper and lower wheels 4 and 5 can accurately clamp the chain blocks 61. An annular disk can also be provided on the limit bar. The annular disk has an overall shape similar to that of the chain assembly 6, and the side walls of the annular disk press against the side walls of all the chain blocks 61, thereby limiting the position of the chain blocks 61 perpendicular to the direction of travel of the copper wire.

[0098] In order to facilitate the installation of the drawing equipment, 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 are installed on the upper sub-base, and the lower rotating wheel 5 and its corresponding chain assembly 6 and pressure bar 7 are installed on the lower sub-base, which facilitates the installation of the chain block 61. After the above components are assembled, the upper sub-base can be hoisted above the lower sub-base to make the upper and lower sub-bases fit together, and then the upper sub-base is slowly lowered to align the upper and lower chain blocks 61 in the pressing section 6a. Through holes are provided in the parts of the upper and lower sub-bases corresponding to the pressing section 6a to facilitate personnel to adjust the upper and lower chain blocks 61 during installation to ensure that they can fit accurately.

[0099] The mounting seat 3 is further provided with a guide sleeve 8 at both ends of the copper wire's travel direction. The sleeve 8 has a guide through hole in the center. 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.

[0100] 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:

[0101] S10: Grinding the end of the copper wire to reduce the diameter of the copper wire end to a size that can pass through the drawing mold 2;

[0102] 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;

[0103] 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;

[0104] 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.

[0105] The basic principles, main features, and advantages of the present invention are shown and described above. Those skilled in the art should understand that the present invention is not limited to the foregoing embodiments. The foregoing embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and modifications may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and modifications are intended to fall within the scope of the present invention. The scope of protection claimed in the present invention is defined by the appended 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 turntable (1) to rotate; Pulling mechanism, used to pull the copper wire forward; A drawing mold (2), arranged between the turntable (1) and the drawing mechanism, for processing the copper wire; Wherein, the pulling mechanism includes: A mounting seat (3) is independently fixed; Two upper rotating wheels (4) are both rotated on the mounting seat (3) and 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 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) 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 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 traveling direction of the copper wire; A second power mechanism drives one of the lower rotating wheels (5) to rotate; The copper wire passes between the two chain components (6); The chain assembly (6) includes 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 includes: A driving column (62) is fixedly arranged on the chain block (61); A hinge column (63) is provided on one side of the bottom surface of the chain block (61); A 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); The upper rotating wheel (4) and the lower rotating wheel (5) are both provided with a slot for clamping the driving column (62); Two annular grooves (31) corresponding to the two chain assemblies (6) are provided on the mounting seat (3), and the hinge column (63) in each chain assembly (6) also extends into the corresponding annular groove (31).

2. The ultra-fine copper wire drawing equipment according to claim 1, characterized in that: A roller (65) is provided at one end of the hinge column (63) extending into the annular groove (31).

3. The ultra-fine copper wire drawing equipment according to claim 1, characterized in that: A rubber block (66) is fixedly arranged on the bottom surface of each chain block (61).

4. The ultra-fine copper wire drawing equipment according to claim 3, characterized in that: An arcuate groove is provided on the bottom surface of each rubber block (66), and the extending direction of the arcuate groove is the same as the traveling direction of the copper wire.

5. The ultra-fine copper wire drawing equipment according to claim 1, characterized in that: The mounting seat (3) is further provided with two elastic mechanisms, corresponding to the two pressure bars (7) respectively, and each elastic mechanism comprises: A fixed 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 hinged to the 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).

6. The ultra-fine copper wire drawing equipment according to claim 5, 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).

7. 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).

8. 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 7 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 rotate the lower rotating wheel (5) slowly until the copper wire is taut; S40: starting the first power mechanism and the second power mechanism, so that the turntable (1) and the lower rotating wheel (5) reach the set working speed, and realizing the drawing process of the copper wire.

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