Wire drawing device for copper wire production

Abstract

The invention relates to the technical field of copper material manufacturing, and particularly discloses a wire drawing device for copper wire production, which comprises a wire drawing unit, the wire drawing unit comprises a wire drawing frame and a mounting top plate, the mounting top plate is located at the top of the wire drawing frame and is fixedly connected through a bolt group, and a wire drawing feed port is formed in the front of the left side of the wire drawing frame. A wire drawing discharging opening is formed in the rear portion of the right side of the wire drawing frame, a wire drawing assembly is arranged in the wire drawing frame, and an adjusting assembly is arranged above the wire drawing assembly. The wire drawing unit adopts an automatic die changing system, through cooperation of an adjusting rod, a part changing frame, a positioning servo electric cylinder and other structures, rapid and automatic replacement and high-precision positioning of wire drawing dies are achieved, multi-stage continuous diameter reducing of copper wires can be completed in cooperation with stepped layout of spiral wire guide rollers and multiple sets of wire drawing dies, the production efficiency is improved by three times compared with a traditional process, and the production cost is reduced. And meanwhile, the diameter tolerance is controlled to be + / -0.002 mm, and the precision bottleneck of + / -0.01 mm in the traditional process is broken through.

Description

Technical Field

[0001] The present invention relates to the technical field of copper material manufacturing, and specifically refers to a wire drawing device for copper wire production. Background Art

[0002] Copper wire refers to the wire drawn from hot-rolled copper rods without annealing (but wires with smaller sizes may require intermediate annealing), and can be used for making nets, cables, copper brush filter meshes, etc. Wire drawing devices are often required during the production of copper wire.

[0003] Traditional wire drawing devices use manual replacement of wire drawing dies. The die change time is up to dozens of minutes, and it is difficult to ensure the installation accuracy of the dies, resulting in a high wire breakage rate and low production efficiency. In particular, it cannot meet the production requirements of high-end copper wire in small batches and with multiple varieties. In addition, the cleaning, lubrication, and wire drawing processes of traditional wire drawing devices are independent of each other, lacking an integrated design, resulting in a large floor area, high energy consumption, and high environmental protection treatment costs. Therefore, there is an urgent need for a new type of wire drawing device with automatic die change, efficient surface treatment, and precise control. Summary of the Invention

[0004] In view of the above situation, to overcome the defects of the prior art, the present invention provides a wire drawing device for copper wire production to solve the above-mentioned technical defects.

[0005] To achieve the above objectives, the present invention is realized through the following technical solutions: A wire drawing device for copper wire production, comprising:

[0006] A wire drawing unit, the wire drawing unit includes a wire drawing frame and a mounting top plate. The mounting top plate is fixedly connected to the top of the wire drawing frame through a bolt group. A wire drawing inlet is provided in the front of the left side of the wire drawing frame, and a wire drawing outlet is provided in the rear of the right side. A wire drawing assembly is arranged inside the wire drawing frame, and an adjusting assembly is arranged above the wire drawing assembly.

[0007] A wire feeding unit, the wire feeding unit includes a cleaning chamber, a laser processing chamber, and a wire feeding fixing frame. The laser processing chamber is fixedly arranged on the right side of the cleaning chamber, the wire feeding fixing frame is fixedly arranged on the right side of the laser processing chamber, and the right side of the wire feeding fixing frame is fixedly connected to the inside of the wire drawing inlet. A dry ice jet cleaning machine is arranged at the rear of the cleaning chamber, and a femtosecond laser is arranged on the right side of the dry ice jet cleaning machine. The output end of the dry ice jet cleaning machine is communicated with the inside of the cleaning chamber, and the output end of the femtosecond laser is communicated with the inside of the laser processing chamber.

[0008] Furthermore, limiting servo electric cylinders are fixedly arranged above and below the left side of the cleaning chamber, and limiting material guiding blocks are fixedly arranged at the driving ends of the two limiting servo electric cylinders. Material guiding balls are arranged on the opposite sides of the upper and lower two limiting material guiding blocks. Rubber sealing rubber rings are arranged on both sides inside the cleaning chamber, and cross cuts are arranged in the middle of the two rubber sealing rubber rings.

[0009] Furthermore, material guiding rollers are rotatably arranged on both sides inside the wire feeding fixing frame, a dipping material frame is fixedly arranged in the middle inside, a movable pressing material roller is movably arranged above the middle inside, and a rotating roller is rotatably arranged at the bottom of the movable pressing material roller. A lifting servo electric cylinder is fixedly arranged at the top of the wire feeding fixing frame, and the driving end of the lifting servo electric cylinder is fixedly connected with the top of the movable pressing material roller; A material guiding control board is slidably arranged up and down on the front surface of the wire feeding fixing frame, and liquid inlet pipes and liquid discharge pipes are fixedly arranged on both sides at the bottom of the wire feeding fixing frame.

[0010] Furthermore, the wire drawing assembly includes a spiral wire guiding roller and a wire drawing fixing frame. Rotating rods are rotatably arranged on both sides inside the wire drawing frame, and spiral wire guiding rollers are fixedly arranged on the surfaces of the two rotating rods. A wire drawing fixing frame is fixedly arranged in the middle inside the wire drawing frame, and a plurality of wire drawing die positioning grooves are arranged at the top of the wire drawing fixing frame. Electromagnets are arranged at the bottoms of the inner walls of the plurality of wire drawing die positioning grooves.

[0011] Furthermore, the adjusting assembly includes adjusting rods and replacement part frames. Adjusting rods are rotatably arranged on both sides above the inside of the wire drawing frame, and a plurality of replacement part frames are arranged on the surfaces of the two adjusting rods. The plurality of replacement part frames are respectively located directly above the plurality of wire drawing die positioning grooves; Three replacement part servo electric cylinders are fixedly arranged inside the replacement part frame, and the three replacement part servo electric cylinders are arranged at equal angles with respect to the central axis of the replacement part frame. The driving ends of the three replacement part servo electric cylinders are fixedly provided with electromagnetic adsorption plates, and wire drawing dies are electromagnetically adsorbed at the bottoms of the three electromagnetic adsorption plates; A connecting hole is arranged inside the replacement part frame, and a clearance fit is adopted between the inside of the connecting hole and the surface of the adjusting rod; Three groups of clamping material servo electric cylinders are movably arranged inside the connecting hole, and clamping material arc-shaped plates are fixedly arranged at the driving ends of the three groups of clamping material servo electric cylinders; Three positioning holes are arranged on the outer peripheral surface of the replacement part frame, and a plurality of positioning servo electric cylinders are fixedly arranged at the bottom of the installation top plate.

[0012] Further, a driving frame is fixedly arranged on the back surface of the wire drawing frame, and one ends of the rotating rod and the adjusting rod both extend into the interior of the driving frame. Fixedly arranged at one ends of the two adjusting rods located inside the driving frame are transmission gears, and fixedly arranged at one ends of the two adjusting rods and one ends of the two rotating rods are belt pulleys. Fixedly arranged on the back surface of the driving frame is an adjusting servo motor, and fixedly arranged at one end of the output shaft of the adjusting servo motor is a driving gear. The tooth surface of the driving gear is in meshing transmission with the surfaces of the two transmission gears, and the surfaces of the two belt pulleys are connected by belt transmission.

[0013] Further, the dry ice jet cleaning machine adopts a BBA-0 limit servo cylinder type dry ice jet cleaning machine with a working pressure of 5 MPa.

[0014] Further, the femtosecond laser generates a laser beam with a pulse width less than 50 fs and a wavelength of 532 nm to process micron-level pits on the surface of the copper wire. The diameter of the pits is 5 - 10 μm, and the depth is 2 - 3 μm.

[0015] Further, the impregnating frame contains a 1-thioethanol solution with a concentration of 10 -3 mol / L and a pH of 5.

[0016] The beneficial effects achieved by the present invention with the above structure are as follows:

[0017] 1. The wire drawing unit adopts an automatic die changing system. Through the cooperation of structures such as the adjusting rod, the die changing rack, and the positioning servo cylinder, the rapid automatic replacement and high-precision positioning of the wire drawing die are realized. With the stepped layout of the spiral wire guiding roller and multiple groups of wire drawing dies, the multi-stage continuous wire diameter reduction of copper wire from Φ2.0 mm to Φ0.1 mm can be completed. The production efficiency is increased by 3 times compared with the traditional process, and at the same time, the diameter tolerance is controlled within ±0.002 mm, breaking through the precision bottleneck of ±0.01 mm of the traditional process.

[0018] 2. The wire feeding unit constructs a composite surface pretreatment system: The dry ice jet cleaning machine realizes the sub-micron-level cleaning of the copper wire surface at a pressure of 5 MPa. The 5 - 10 μm micron-level pits processed by the femtosecond laser increase the lubricant retention amount by 5 times. The 1-thioethanol solution in the impregnating frame forms a 2-nm-thick oriented molecular film, and the friction coefficient is as low as 0.03. Cooperating with the limit guiding block and the rubber sealing rubber ring in the cleaning chamber, while ensuring the smoothness of the copper wire transportation, the leakage of the cleaning liquid is avoided, providing a clean and highly adhesive lubricating base for wire drawing, and extending the die life to 10 times that of the traditional process.

[0019] 3. Through the synchronous drive design of the drive frame and the intelligent control system of the present invention, the servo motor is adjusted to realize the coordinated operation of multiple components through the drive gear, transmission gear and belt pulley. The fluctuation of the copper wire conveying speed is ≤ ±0.5%. The modular layout reduces the floor area of the equipment by 60%. Dry ice cleaning produces no waste water, the lubricant recovery rate reaches 95%, the comprehensive energy consumption is reduced by 40%, and it has the advantages of production flexibility and green manufacturing, and is suitable for the high-efficiency and precision processing of high-end copper wires such as aerospace wires and precision electronic wire harnesses. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The drawings are used to provide a further understanding of the present invention, and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation to the present invention. In the drawings:

[0021] Figure 1 is a schematic diagram of the structure of a wire drawing device for copper wire production according to an embodiment of the present invention;

[0022] Figure 2 is a schematic diagram of the structures of a cleaning chamber, a laser processing chamber and a wire feeding fixing frame according to an embodiment of the present invention;

[0023] Figure 3 is a schematic diagram of the internal structure of a wire drawing frame according to an embodiment of the present invention;

[0024] Figure 4 is a schematic diagram of the structures of a positioning servo cylinder and a drive frame according to an embodiment of the present invention;

[0025] Figure 5 is a schematic diagram of the structures of a drive gear, a transmission gear and a belt pulley according to an embodiment of the present invention;

[0026] Figure 6 is a schematic diagram of the structures of an adjusting rod, a spare part rack and a wire drawing die according to an embodiment of the present invention;

[0027] Figure 7 is a schematic diagram of the structures of a wire drawing frame and a wire drawing fixing frame according to an embodiment of the present invention.

[0028] In the figure, 1 is a wire drawing unit; 2 is a wire feeding unit; 3 is a dry ice jet cleaning machine; 4 is a femtosecond laser; 5 is a cleaning chamber; 6 is a limit servo cylinder; 7 is a limit guide block; 8 is a laser processing chamber; 9 is a wire feeding fixing frame; 10 is a guide roller; 11 is a movable pressure roller; 12 is a lifting servo cylinder; 13 is an impregnating frame; 14 is a wire drawing frame; 15 is a wire drawing inlet; 16 is a wire drawing outlet; 17 is a rotating rod; 18 is a spiral wire guiding roller; 19 is a wire drawing fixing frame; 20 is a wire drawing die positioning groove; 21 is an adjusting rod; 22 is a spare part changing frame; 23 is a spare part changing servo cylinder; 24 is an electromagnetic adsorption plate; 25 is a wire drawing die; 26 is a connecting hole; 27 is a positioning hole; 28 is an installation top plate; 29 is a positioning servo cylinder; 30 is a clamping arc plate; 31 is a clamping servo cylinder; 32 is a driving frame; 33 is a driving gear; 34 is a transmission gear; 35 is a pulley; 36 is an adjusting servo motor. Detailed implementation mode

[0029] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0030] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention.

[0031] Embodiment 1

[0032] Please refer to Figures 1 to 7 As shown, a wire drawing device for copper wire production includes:

[0033] Wire drawing unit 1, the wire drawing unit 1 includes a wire drawing frame 14 and a mounting top plate 28, and the mounting top plate 28 is located at the top of the wire drawing frame 14 and is fixedly connected by a bolt group. In front of the left side of the wire drawing frame 14, there is a wire drawing inlet 15, and behind the right side of the wire drawing frame 14, there is also a wire drawing outlet 16. Inside the wire drawing frame 14, there is a wire drawing assembly, and above the wire drawing assembly, there is also an adjustment assembly. Copper wire is fed into the inside of the wire drawing frame 14 through the wire drawing inlet 15. Inside the wire drawing frame 14, multi-stage continuous wire drawing operation is performed on the copper wire by the wire drawing assembly. And according to the wire drawing size requirements of the copper wire, the wire drawing components in the wire drawing assembly are automatically replaced by using the adjustment assembly, so as to realize the wire drawing treatment of copper wires with different specifications inside the wire drawing frame 14. By automatically replacing the wire drawing components, not only the wire drawing efficiency of the copper wire is greatly improved, but also the wire drawing device can be applied to wire drawing operations with different wire drawing specification requirements, greatly improving the applicability of the wire drawing process for copper wire production.

[0034] Wire feeding unit 2, the wire feeding unit 2 includes a cleaning chamber 5, a laser processing chamber 8 and a wire feeding fixing frame 9. The laser processing chamber 8 is fixedly arranged on the right side of the cleaning chamber 5, and the wire feeding fixing frame 9 is fixedly arranged on the right side of the laser processing chamber 8, and the right side of the wire feeding fixing frame 9 is fixedly connected to the inside of the wire drawing inlet 15. At the rear side of the cleaning chamber 5, there is a dry ice jet cleaning machine 3, and on the right side of the dry ice jet cleaning machine 3, there is also a femtosecond laser 4. The output end of the dry ice jet cleaning machine 3 is communicated with the inside of the cleaning chamber 5, and the output end of the femtosecond laser 4 is communicated with the inside of the laser processing chamber 8. By passing the copper wire through the inside of the cleaning chamber 5, the laser processing chamber 8 and the wire feeding fixing frame 9, surface cleaning is carried out inside the cleaning chamber 5 by using the dry ice jet cleaning machine 3. Specifically, the dry ice jet cleaning machine 3 can adopt a BBA-0 limit servo cylinder 6 type dry ice jet cleaning machine, and the working pressure is set to 5 MPa. After the surface cleaning of the copper wire is completed inside the cleaning chamber 5, a laser beam with a pulse width less than 50 fs and a wavelength of 532 nm is used to process micron-level pits on the surface of the copper wire inside the laser processing chamber 8 by the dry ice jet cleaning machine 3. The processed pits are used as micro oil storage units, so that the lubricant retention amount is increased by 5 times that of the cleaning chamber 5, thereby improving the subsequent wire drawing processing effect of the copper wire.

[0035] In a specific embodiment, in the wire drawing unit 1 of the present invention, the wire drawing frame 14 and the installation top plate 28 are fixedly connected by a bolt group. The wire drawing inlet 15 at the front left and the wire drawing outlet 16 at the rear right cooperate with the internal wire drawing assembly and the upper adjusting assembly to achieve multi-stage continuous wire drawing of copper wire, and can also automatically replace the wire drawing parts according to the wire drawing size requirements, improving the wire drawing efficiency and processing applicability. In the wire feeding unit 2, the cleaning chamber 5, the laser processing chamber 8 and the wire feeding fixing frame 9 are arranged in sequence. The dry ice jet cleaning machine 3 cleans the surface of the copper wire passing through in the cleaning chamber 5, and the femtosecond laser 4 processes micron-level pits in the laser processing chamber 8 as micro oil storage units to increase the lubricant retention amount, thereby optimizing the subsequent wire drawing processing effect.

[0036] Specifically, limiting servo electric cylinders 6 are fixedly arranged above and below the left side of the cleaning chamber 5, and limiting guide blocks 7 are fixedly arranged at the driving ends of the two limiting servo electric cylinders 6. Guide balls are arranged on the opposite sides of the upper and lower two limiting guide blocks 7. Rubber sealing rubber rings are arranged on both sides inside the cleaning chamber 5, and cross cuts are arranged in the middle of the two rubber sealing rubber rings, which can ensure the smooth transportation of the copper wire while preventing the cleaning materials inside the cleaning chamber 5 from overflowing outside the cleaning chamber 5.

[0037] Furthermore, guide rollers 10 are rotatably arranged on both sides inside the wire feeding fixing frame 9, and an immersion frame 13 is fixedly arranged in the middle inside the wire feeding fixing frame 9. An active pressing roller 11 is movably arranged above the middle inside the wire feeding fixing frame 9, and a rotating roller is also rotatably arranged at the bottom of the active pressing roller 11. A lifting servo electric cylinder 12 is fixedly arranged at the top of the wire feeding fixing frame 9, and the driving end of the lifting servo electric cylinder 12 is fixedly connected to the top of the active pressing roller 11. It should be noted that a guide control plate is slidably arranged up and down on the front of the wire feeding fixing frame 9, and liquid inlet pipes and drain pipes are fixedly arranged on both sides of the bottom of the wire feeding fixing frame 9. By feeding a 1-thioethanol solution with a concentration of 10 -3 mol / L and pH = 5 into the inside of the immersion frame 13, pressing the copper wire into the inside of the immersion frame 13 to form a 2-nm-thick oriented molecular layer on the surface of the copper wire, and finally feeding the copper wire into the inside of the wire drawing frame 14 through the wire drawing inlet 15 to complete the pre-treatment process of the copper wire in the wire drawing process.

[0038] Embodiment 2

[0039] Specifically, the wire drawing assembly includes a spiral wire guiding roller 18 and a wire drawing fixing frame 19. Rotating rods 17 are rotatably arranged on both sides inside the wire drawing frame 14, and spiral wire guiding rollers 18 are fixedly arranged on the surfaces of the two rotating rods 17. A wire drawing fixing frame 19 is also fixedly arranged in the middle inside the wire drawing frame 14, and a plurality of wire drawing die positioning grooves 20 are arranged on the top of the wire drawing fixing frame 19. Electromagnets are arranged at the bottoms of the inner walls of the plurality of wire drawing die positioning grooves 20.

[0040] Specifically, the adjusting assembly includes an adjusting rod 21 and a replacement part frame 22. Adjusting rods 21 are rotatably arranged on both sides above the inside of the wire drawing frame 14, and a plurality of replacement part frames 22 are arranged on the surfaces of the two adjusting rods 21. Among them, the plurality of replacement part frames 22 are respectively located directly above the plurality of wire drawing die positioning grooves 20; Three replacement part servo cylinders 23 are fixedly arranged inside the replacement part frame 22, and the three replacement part servo cylinders 23 are arranged at equal angles with respect to the central axis of the replacement part frame 22. The driving ends of the three replacement part servo cylinders 23 are fixedly provided with electromagnetic adsorption plates 24, and wire drawing dies 25 are electromagnetically adsorbed at the bottoms of the three electromagnetic adsorption plates 24; A connection hole 26 is arranged inside the replacement part frame 22, and a clearance fit is adopted between the inside of the connection hole 26 and the surface of the adjusting rod 21; Three groups of clamping servo cylinders 31 are also movably arranged inside the connection hole 26, and clamping arc-shaped plates 30 are fixedly arranged at the driving ends of the three groups of clamping servo cylinders 31; Three positioning holes 27 are arranged on the outer peripheral surface of the replacement part frame 22, and a plurality of positioning servo cylinders 29 are fixedly arranged at the bottom of the installation top plate 28.

[0041] It should be noted that when installing and connecting the wire drawing die 25 into the wire drawing die positioning groove 20, the driving end of the replacement part servo cylinder 23 directly below inside the replacement part frame 22 drives the electromagnetic adsorption plate 24 to drive the wire drawing die 25 to descend into the wire drawing die positioning groove 20. After the wire drawing die 25 is placed into the wire drawing die positioning groove 20, the electromagnetic adsorption plate 24 is powered off, and at the same time, the electromagnets at the bottoms of the inner walls of the wire drawing die positioning groove 20 are powered on, so that the wire drawing die 25 is electromagnetically adsorbed inside the wire drawing die positioning groove 20, ensuring the stability of the installation of the wire drawing die 25 inside the wire drawing die positioning groove 20; When adjusting the wire drawing die 25, the replacement part frame 22 is rotated and adjusted. At this time, the driving end of the positioning servo cylinder 29 connected to the inside of the positioning hole 27 is reset, and at the same time, the driving end of the clamping servo cylinder 31 is used to control the clamping arc-shaped plate 30 to fit the surface of the adjusting rod 21. The rotation of the adjusting rod 21 drives the replacement part frame 22 to rotate, thereby completing the automatic replacement of the wire drawing die 25 with different wire drawing specifications.

[0042] It should be noted that the wire drawing components inside the wire drawing frame 14, including structures such as the spiral wire guiding rollers 18, the wire drawing fixing frame 19, and multiple wire drawing die positioning grooves 20, can reciprocate the copper wire left and right between the spiral wire guiding rollers 18. The wire drawing die 25 at different positions is used to perform multi-stage continuous wire drawing operation on the copper wire. Compared with the traditional single wire drawing, the number of times of clamping the copper wire is reduced, and the overall wire drawing efficiency is further improved.

[0043] It should also be further explained that a driving frame 32 is fixedly arranged on the back of the wire drawing frame 14, and one ends of the rotating rod 17 and the adjusting rod 21 both extend into the driving frame 32. At one ends of the two adjusting rods 21 located inside the driving frame 32, transmission gears 34 are fixedly arranged, and at one ends of the two adjusting rods 21 and one ends of the two rotating rods 17, pulley wheels 35 are also fixedly arranged. A regulating servo motor 36 is fixedly arranged on the back of the driving frame 32, and a driving gear 33 is fixedly arranged at one end of the output shaft of the regulating servo motor 36. The tooth surface of the driving gear 33 meshes and drives with the surfaces of the two transmission gears 34, and the surfaces of the two pulley wheels 35 are connected by a belt in a transmission manner.

[0044] It should be noted that during the wire drawing process of the copper wire, the output shaft of the regulating servo motor 36 is used to control the driving gear 33 to rotate. Under the action of the two meshing transmission gears 34, the two adjusting rods 21 rotate synchronously. At this time, there is a clearance fit between the inside of the replacement frame 22 and the surface of the adjusting rod 21. At the same time, through the connection between the surface of the replacement frame 22 and the driving end of the positioning servo cylinder 29 inside the positioning hole 27, the replacement frame 22 does not rotate synchronously with the adjusting rod 21. One ends of the two rotating rods 17 are synchronously driven through the two pulley wheels 35 and the belt, and the copper wire is reciprocated left and right between the spiral wire guiding rollers 18 on both sides inside the wire drawing frame 14. At the same time, the wire drawing die 25 on the top of the wire drawing fixing frame 19 is used to perform multi-stage continuous wire drawing operation on the copper wire.

[0045] In a specific embodiment, the present invention cooperates with the installation top plate 28 through the wire drawing frame 14. The adjusting components inside it can automatically replace the wire drawing die 25 in the wire drawing components according to the wire drawing size requirements of the copper wire. Through the coordinated operation of structures such as the adjusting rod 21, the replacement frame 22, the replacement servo cylinder 23, and the electromagnetic adsorption plate 24, manual replacement is not required, greatly shortening the die replacement time, realizing rapid switching of wire drawing operations for different specifications of copper wire, greatly improving the wire drawing efficiency of the copper wire, and being able to adapt to the requirements of various wire drawing specifications, enabling the wire drawing device to be used for the production of copper wire with different diameters and precision requirements, and greatly improving the applicability of the wire drawing process for copper wire production.

[0046] Embodiment 3

[0047] Specifically, this embodiment also discloses a working method of a wire drawing device for copper wire production, including the following steps:

[0048] Step 1: Pass the copper wire through the cleaning chamber 5, the laser treatment chamber 8, and the wire feeding fixing frame 9 in sequence. In the cleaning chamber 5, the dry ice jet cleaning machine 3 performs surface cleaning on the copper wire at a working pressure of 5 MPa. The limit servo cylinders 6 on both sides of the cleaning chamber 5 drive the limit guide blocks 7, and their guide balls ensure smooth copper wire transportation. The rubber sealing rubber ring and cross cut prevent cleaning materials from overflowing. Then, in the laser treatment chamber 8, the femtosecond laser 4 generates a laser beam with a pulse width less than 50 fs and a wavelength of 532 nm to process micron-sized pits on the surface of the copper wire as micro oil storage units. Then, in the wire feeding fixing frame 9, the lifting servo cylinder 12 drives the movable pressure roller 11 to press the copper wire into the dipping frame 13, and the 1-thioethanol solution 10 in the dipping frame 13 -3 with a concentration of 1 mol / L and a pH of 5 forms a 2-nm-thick oriented molecular layer on the surface of the copper wire. Finally, the copper wire is fed into the wire drawing frame 14 through the wire drawing inlet 15;

[0049] Step 2: The replacement servo cylinder 23 directly below the interior of the replacement part rack 22 drives the electromagnetic adsorption plate 24 to drive the wire drawing die 25 down into the wire drawing die positioning groove 20. The electromagnetic adsorption plate 24 is powered off, and the electromagnet at the bottom of the inner wall of the wire drawing die positioning groove 20 is powered on, so that the wire drawing die 25 is stably adsorbed in the wire drawing die positioning groove 20;

[0050] Step 3: When different specifications of wire drawing dies 25 need to be replaced, control the positioning servo cylinder 29 to drive the driving end to reset. The clamping servo cylinder 31 drives the clamping arc plate 30 to fit with the adjusting rod 21. The adjusting servo motor 36 drives the driving gear 33 to rotate, and through the transmission gear 34, the two adjusting rods 21 rotate synchronously, thereby driving the replacement part rack 22 to rotate and completing the automatic replacement of the wire drawing die 25;

[0051] Step 4: The adjusting servo motor 36 drives the driving gear 33 to rotate. Through the transmission gear 34, the two adjusting rods 21 rotate synchronously. At the same time, through the pulley 35 and the belt, the two rotating rods 17 rotate synchronously, so that the copper wire is reciprocated left and right between the spiral wire guiding rollers 18 on both sides in the wire drawing frame 14. The wire drawing die 25 at the top of the wire drawing fixing frame 19 is used to perform multi-stage continuous wire drawing operation on the copper wire. Finally, the processed copper wire is sent out from the wire drawing outlet 16.

[0052] Meanwhile, the content not described in detail in this specification belongs to the prior art well-known to those skilled in the art.

[0053] It should be noted that in this text, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprising", "including" or any other variant thereof are intended to cover non-exclusive inclusion, such that a process, method, article or device comprising a series of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article or device.

[0054] The foregoing has shown and described the basic principles, main features and advantages of the present invention. For a person skilled in the art, it is obvious that the present invention is not limited to the details of the above-described exemplary embodiments, and without departing from the spirit or basic characteristics of the present invention, the present invention can be implemented in other specific forms. Therefore, in any regard, the embodiments should be regarded as exemplary and non-limiting. The scope of the present invention is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be embraced by the present invention. Any reference signs in the claims should not be construed as limiting the claims involved.

[0055] In addition, it should be understood that although this specification is described in terms of embodiments, not every embodiment only contains an independent technical solution. This narrative manner of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in the various embodiments can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A wire drawing device for copper wire production, characterized in that, Comprising: A wire drawing unit (1), the wire drawing unit (1) includes a wire drawing frame (14) and a mounting top plate (28), the mounting top plate (28) is located at the top of the wire drawing frame (14) and is fixedly connected by a bolt group, a wire drawing feed port (15) is arranged in front of the left side of the wire drawing frame (14), a wire drawing discharge port (16) is arranged behind the right side, a wire drawing assembly is arranged inside the wire drawing frame (14), and an adjusting assembly is arranged above the wire drawing assembly; A wire feeding unit (2), the wire feeding unit (2) includes a cleaning chamber (5), a laser processing chamber (8) and a wire feeding fixing frame (9), the laser processing chamber (8) is fixedly arranged on the right side of the cleaning chamber (5), the wire feeding fixing frame (9) is fixedly arranged on the right side of the laser processing chamber (8), and the right side of the wire feeding fixing frame (9) is fixedly connected with the inside of the wire drawing feed port (15); a dry ice spraying cleaning machine (3) is arranged at the rear side of the cleaning chamber (5), and a femtosecond laser (4) is arranged on the right side of the dry ice spraying cleaning machine (3), the output end of the dry ice spraying cleaning machine (3) is communicated with the inside of the cleaning chamber (5), and the output end of the femtosecond laser (4) is communicated with the inside of the laser processing chamber (8).

2. The wire drawing device for copper wire production according to claim 1, characterized in that, Limit servo electric cylinders (6) are fixedly arranged above and below the left side of the cleaning chamber (5), and limit guide blocks (7) are fixedly arranged at the driving ends of the two limit servo electric cylinders (6). Guide balls are arranged on the opposite sides of the upper and lower two limit guide blocks (7). Rubber sealing rubber rings are arranged on both sides inside the cleaning chamber (5), and cross cuts are arranged in the middle of the two rubber sealing rubber rings.

3. The wire drawing device for copper wire production according to claim 1, characterized in that, Guide rollers (10) are rotatably arranged on both sides inside the wire feeding fixing frame (9), an impregnating frame (13) is fixedly arranged in the middle inside, a movable pressing roller (11) is movably arranged above the middle inside, and a rotating roller is rotatably arranged at the bottom of the movable pressing roller (11). A lifting servo electric cylinder (12) is fixedly arranged on the top of the wire feeding fixing frame (9), and the driving end of the lifting servo electric cylinder (12) is fixedly connected with the top of the movable pressing roller (11); a guide control plate is slidably arranged up and down on the front surface of the wire feeding fixing frame (9), and liquid inlet pipes and liquid discharge pipes are fixedly arranged on both sides of the bottom of the wire feeding fixing frame (9).

4. A wire drawing device for copper wire production according to claim 1, characterized in that, The wire drawing assembly includes a spiral wire guiding roller (18) and a wire drawing fixing frame (19). Rotating rods (17) are rotatably arranged on both sides inside the wire drawing frame (14), and spiral wire guiding rollers (18) are fixedly arranged on the surfaces of the two rotating rods (17). A wire drawing fixing frame (19) is fixedly arranged in the middle inside the wire drawing frame (14), and a plurality of wire drawing die positioning grooves (20) are arranged on the top of the wire drawing fixing frame (19). Electromagnets are arranged at the bottoms of the inner walls of the plurality of wire drawing die positioning grooves (20).

5. A wire drawing device for copper wire production according to claim 1, characterized in that, The adjusting assembly includes an adjusting rod (21) and a part-changing rack (22). On both sides above the inner part of the wire drawing frame (14), the adjusting rods (21) are rotatably arranged, and a number of part-changing racks (22) are arranged on the surfaces of the two adjusting rods (21). The number of part-changing racks (22) are respectively located directly above a number of wire drawing die positioning slots (20); Three part-changing servo electric cylinders (23) are fixedly arranged inside the part-changing rack (22), and the three part-changing servo electric cylinders (23) are arranged at equal angles with respect to the central axis of the part-changing rack (22). The driving ends of the three part-changing servo electric cylinders (23) are fixedly provided with electromagnetic adsorption plates (24), and a wire drawing die (25) is electromagnetically adsorbed at the bottom of each of the three electromagnetic adsorption plates (24); A connecting hole (26) is arranged inside the part-changing rack (22), and a clearance fit is adopted between the inside of the connecting hole (26) and the surface of the adjusting rod (21); Three groups of clamping servo electric cylinders (31) are movably arranged inside the connecting hole (26), and the driving ends of the three groups of clamping servo electric cylinders (31) are fixedly provided with clamping arc-shaped plates (30); Three positioning holes (27) are arranged on the outer peripheral surface of the part-changing rack (22), and a number of positioning servo electric cylinders (29) are fixedly arranged at the bottom of the mounting top plate (28).

6. The wire drawing device for copper wire production according to claim 1, characterized in that, A driving frame (32) is fixedly arranged on the back surface of the wire drawing frame (14), and one ends of the rotating rod (17) and the adjusting rod (21) both extend into the inside of the driving frame (32). Transmission gears (34) are fixedly arranged at one ends of the two adjusting rods (21) located inside the driving frame (32), and pulleys (35) are also fixedly arranged at one ends of the two adjusting rods (21) and one ends of the two rotating rods (17). An adjusting servo motor (36) is fixedly arranged on the back surface of the driving frame (32), and a driving gear (33) is fixedly arranged at one end of the output shaft of the adjusting servo motor (36). The tooth surface of the driving gear (33) is meshed and driven with the surfaces of the two transmission gears (34), and the surfaces of the two pulleys (35) are connected by a belt in a transmission manner.

7. A wire drawing device for copper wire production according to claim 1, characterized in that, The dry ice jet cleaning machine (3) adopts a BBA-0 limit servo electric cylinder (6) type dry ice jet cleaning machine with a working pressure of 5 MPa.

8. The wire drawing device for copper wire production according to claim 1, characterized in that, The femtosecond laser (4) generates a laser beam with a pulse width less than 50 fs and a wavelength of 532 nm to process micron-level pits on the surface of the copper wire. The diameter of the pits is 5 - 10 μm, and the depth is 2 - 3 μm.

9. The wire drawing device for copper wire production according to claim 3, characterized in that, The dipping material frame (13) contains a 1-thioethanol solution with a concentration of 10 -3 mol / L and a pH of 5.

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