Copper wire drawing device

Abstract

The invention discloses a copper wire drawing device, and belongs to the technical field of copper wire drawing devices, the copper wire drawing device comprises a back plate, two guide mechanisms are arranged on the end face of the back plate, two die mechanisms are arranged on the end face of the back plate, and two hub mechanisms are arranged on the end face of the back plate. The guide mechanism comprises an embedded block, two guide wheels, two resistance blocks and a supporting rod, and half-tooth circular blocks are arranged on the end faces of the two resistance blocks. Damping force is reversely transmitted to the supporting rod through the gear and the rack, rapid fluctuation of tension can be effectively restrained, the guide wheel can be stably reset, the stability of the copper wire during transmission is improved, the shape of magnetorheological fluid is controlled by controlling magnetic force generated by the electromagnetic coil, the function of controlling the diameter is achieved, timely adjustment is facilitated, and the service life of the copper wire is prolonged. The low-boiling-point liquid working medium is repeatedly used through centrifugal force, so that the temperature field of the drum becomes uniform, the cooling efficiency is improved, the temperature of the drum becomes uniform, and the wire drawing speed is increased.

Description

Technical Field

[0001] This invention relates to the field of copper wire drawing equipment, and more specifically, to a copper wire drawing equipment. Background Technology

[0002] Copper wire is a linear conductor made from high-purity copper as the main raw material through plastic processing processes such as rolling and drawing. With its excellent electrical conductivity, thermal conductivity, ductility, corrosion resistance, and relatively economical cost, copper wire has become the lifeblood of almost all electrification fields, including modern power transmission, electronic information, transportation, and home appliances. The copper materials directly supplied by smelters cannot directly meet the application requirements. It is necessary to use the key plastic deformation process of wire drawing to transform thick copper rods into thin copper wires that meet the requirements at room temperature using strong tensile stress applied by a die. This process requires the use of existing wire drawing equipment. The copper wire drawing equipment uses multiple powered drums to pull the copper wire continuously through multiple hard dies, gradually reducing its diameter and stretching it.

[0003] During high-speed wire drawing, the intense plastic deformation of the metal and the friction with the die generate a large amount of heat. Traditional external water cooling of the drum is an indirect surface cooling method, which has high thermal resistance and slow response, and is prone to forming local hot spots. This leads to local annealing and uneven performance of the wire, limiting the speed increase. The wire drawing die, as the core deformation tool, is a rigid body with a fixed aperture. Once worn, the aperture changes and cannot be restored, requiring machine shutdown for replacement, which is extremely inconvenient. Moreover, the offset caused by the winding position of the copper wire during transmission will affect the stability of transmission. To solve these problems, this application proposes a new type of copper wire drawing device. Summary of the Invention

[0004] The purpose of this invention is to provide a copper wire drawing device to solve the problems mentioned in the background art: to make the guide wheel return smoothly, increase the stability of the copper wire during transmission, control the diameter size, facilitate timely adjustment, and reuse the low-boiling-point liquid working fluid by centrifugal force to make the drum temperature uniform and improve the drawing speed.

[0005] To achieve the above objectives, the present invention provides the following technical solution: A copper wire drawing device includes a back plate, two guide mechanisms, two mold mechanisms, and two hub mechanisms provided on the end face of the back plate. The guiding mechanism includes an embedded block, two guide wheels, two resistance blocks and a support rod. The end faces of the two resistance blocks are provided with semi-toothed round blocks, the two semi-toothed round blocks are connected to gears, and the two gears are connected to racks. The mold mechanism includes a shell, an annular disc, a sealing groove, and six rear columns. A conical shell is provided inside the shell, and six extrusion blocks are provided inside the conical shell. Each of the six extrusion blocks has a head block on its end face, an expansion spring on its end face, and a tail block on its end face. Each of the six rear columns has a push spring inside, an electromagnetic coil is provided on the outer end face of the conical shell, and magnetorheological fluid is provided inside the sealing groove. The hub mechanism includes a wheel body, which has multiple outer ring grooves and a central groove, with a heat dissipation column inside the central groove.

[0006] By adopting the above technical solution, the damping force is transmitted in reverse to the support rod through the gear rack, which can effectively suppress the rapid fluctuation of tension, make the guide wheel return smoothly, and increase the stability of the copper wire during transmission. The shape of the magnetorheological fluid is controlled by the magnetic force generated by the electromagnetic coil, thereby controlling the diameter and allowing for convenient and timely adjustments. By using centrifugal force to repeatedly use low-boiling-point liquid working fluid, the temperature field of the drum becomes more uniform, improving cooling efficiency and increasing the drawing speed.

[0007] Preferably, the end face of the embedded block is provided with a moving groove, the inner wall of the moving groove is provided with two placement grooves, the inner wall of the two placement grooves is provided with a resistance groove, the two resistance blocks are respectively disposed inside the two resistance grooves, and the two semi-toothed round blocks and the two gears are respectively disposed inside the two placement grooves.

[0008] By adopting the above technical solution, the rotating gear will drive the semi-toothed block to rotate inside the placement groove, and the rotating semi-toothed block will drive the resistance block to swing inside the resistance groove. The force is buffered by viscous damping, thereby stabilizing the deviation of the guide wheel.

[0009] Preferably, the support rod end face is provided with two sub-plates, and the two racks are respectively provided on the end faces of the two sub-plates.

[0010] By adopting the above technical solution, the rack moves in a buffered manner by driving the support rod through the auxiliary plate, so that the support rod can support and buffer the guide wheel.

[0011] Preferably, the end face of the support rod is provided with a connecting frame, and the end face of the connecting frame is provided with two support frames, and the two guide wheels are respectively disposed inside the two support frames.

[0012] By adopting the above technical solution, the guide wheel is set inside the support frame, which is supported and fixed by the connecting frame, so that the guide wheel is supported by the support rod.

[0013] Preferably, the inner wall of the conical shell is provided with six sliding grooves, and each of the six sliding grooves is provided with a slider, and the six sliders are respectively connected to six extrusion blocks.

[0014] By adopting the above technical solution, the extrusion block is restricted in its direction of movement by the slider, allowing the extrusion block to move only in the direction of the groove, thus enabling the extrusion block to expand and shrink in diameter.

[0015] Preferably, the conical shell end face is provided with six front grooves, the six expansion springs are respectively disposed in the six front grooves, the end faces of the six tail blocks are all provided with inclined grooves, the inner wall of the annular disk is provided with six inclined blocks, and the six inclined blocks are respectively disposed in the six inclined grooves.

[0016] By adopting the above technical solution, the expansion spring pulls the head block inside the front groove, allowing the extrusion block to reach the position with the largest diameter. Meanwhile, the ring disc drives the inclined block to move inside the inclined groove, allowing the tail block to drive the extrusion block to move only at an angle, thereby reducing the diameter formed by the extrusion block.

[0017] Preferably, the inner wall of the conical shell is provided with a pushing ring groove, the ring disk is disposed inside the pushing ring groove, the end face of the ring disk is provided with six front pillars, the sealing groove and the pushing ring groove are connected and disposed, the sealing groove is provided with six rear grooves, and the six rear pillars are respectively disposed inside the six rear grooves.

[0018] By adopting the above technical solution, the push spring is always in a pushing state on the rear column, but the magnetorheological fluid inside the sealing groove is in a liquid state, which makes it impossible to effectively transmit the thrust to the front column, so that the ring disk cannot be displaced. When the magnetorheological fluid becomes solid, the thrust generated by the rear column can be transmitted to the front column, thereby pushing the ring disk to make the extrusion block move.

[0019] Preferably, the wheel body has an inner ring groove, multiple connecting grooves, and multiple arc grooves on the end face of the heat dissipation column.

[0020] By adopting the above technical solution, the arc grooves on the surface of the heat dissipation column are opened to increase the contact area. The air bubbles generated inside the outer ring groove will be transferred to the inner ring groove through the connecting groove, and then enter the central groove. The inner ring groove serves as a transfer point.

[0021] Preferably, the back plate end face is provided with a material wheel, a heating device, and a first auxiliary wheel.

[0022] By adopting the above technical solution, the copper wire without drawing is wound on the material wheel. The copper wire passes through the heating device for heating, and then after drawing, it is pulled by the first auxiliary wheel to move towards the second auxiliary wheel.

[0023] Preferably, a cooling water tank is provided on the end face of the back plate, a second auxiliary wheel is provided inside the cooling water tank, and a collecting wheel is provided on the end face of the back plate.

[0024] By adopting the above technical solution, the second auxiliary wheel restricts the copper wire from entering the cooling water tank, and after cooling, it is finally wrapped around the collecting wheel.

[0025] Compared with the prior art, the beneficial effects of the present invention are: 1) The guide mechanism of this copper wire drawing device is equipped with a resistance structure. When the copper wire vibrates and deviates in the front-to-back direction on the guide wheel, the guide wheel will push the rack to move through the support rod. The rack drives the half-tooth block to rotate through the gear. The half-tooth block drives the resistance block to swing inside the resistance groove. The space between the resistance block and the resistance groove is filled with viscous damping. The movement of the resistance block will be subject to a damping force proportional to the speed. This damping force is transmitted in reverse to the support rod through the gear and rack, which can effectively suppress the rapid fluctuation of tension, so that the guide wheel can be smoothly reset and the stability of the copper wire during transmission can be increased.

[0026] 2) This copper wire drawing device is equipped with an adjustable drawing diameter mold mechanism. When the electromagnetic coil is activated, the magnetic force generated by the electromagnetic coil will turn the magnetorheological fluid inside the sealed groove into a solid, allowing the pushing force of the push spring on the rear block to be transmitted to the ring disk. The pushed ring disk will be displaced, and this displacement will squeeze the tail block, causing the tail block to drive the extrusion block to move as a whole, thereby reducing the drawing diameter. By controlling the magnetic force generated by the electromagnetic coil, the shape of the magnetorheological fluid can be controlled, achieving the function of controlling the diameter size, which is convenient for timely adjustment.

[0027] 3) This copper wire drawing device is equipped with a hub mechanism. An outer ring groove is opened inside the hub. The outer ring groove is filled with a low-boiling-point phase change working fluid. The rotating wheel body keeps the liquid inside the outer ring groove. The copper wire wound on the surface of the wheel body is heated. The liquid inside the outer ring groove will absorb heat and boil to generate bubbles. These bubbles move towards the central groove under the action of centrifugal force and are condensed with the assistance of the heat dissipation column. The condensed liquid working fluid is thrown back to the outer ring groove under the action of stronger centrifugal force, which makes the temperature field of the drum more uniform, improves the cooling efficiency, and increases the wire drawing speed. Attached Figure Description

[0028] Figure 1 This is an isometric view of the present invention; Figure 2 This is an isometric view of the guiding mechanism of the present invention; Figure 3 This is an axonometric schematic diagram of the internal structure of the guiding mechanism of the present invention; Figure 4 This is a side sectional axial view of the guiding mechanism of the present invention; Figure 5 This is an isometric view of the mold mechanism of the present invention; Figure 6 This is a schematic diagram of the axial side of the conical shell of the present invention; Figure 7 This is a top-section axial view of the conical shell of the present invention; Figure 8 This is a schematic diagram of the axial side of the extrusion block of the present invention; Figure 9 This is a top-section axial side view of the hub mechanism of the present invention.

[0029] Explanation of the numbers in the diagram: 1. Back plate; 2. Material wheel; 3. Guiding mechanism; 4. Heating device; 5. Mold mechanism; 6. Hub mechanism; 7. First auxiliary wheel; 8. Second auxiliary wheel; 9. Cooling water tank; 10. Collecting wheel; 301. Embedded block; 302. Support rod; 303. Connecting frame; 304. Support frame; 305. Guide wheel; 306. Resistance block; 307. Semi-toothed round block; 308. Gear; 309. Rack; 310. Sub-plate; 311. Resistance groove; 312. Placement groove; 313. Moving groove; 501. Outer shell; 502. 503. Conical shell; 504. Electromagnetic coil; 505. Extrusion block; 506. Tail block; 507. Inclined groove; 508. Head block; 509. Expansion spring; 510. Slider; 511. Slide groove; 512. Front groove; 513. Push ring groove; 514. Ring disc; 515. Front column; 516. Sealing groove; 517. Rear groove; 518. Push spring; 519. Inclined block; 601. Wheel body; 602. Inner ring groove; 603. Center groove; 604. Heat dissipation column; 605. Arc groove; 606. Connecting groove; 607. Outer ring groove. Detailed Implementation

[0030] Example 1, please refer to Figure 1 A copper wire drawing device includes a back plate 1, two guide mechanisms 3, two mold mechanisms 5, and two hub mechanisms 6 on the end face of the back plate 1.

[0031] Specifically, a material wheel 2 is provided on the end face of the back plate 1, a heating device 4 is provided on the end face of the back plate 1, a first auxiliary wheel 7 is provided on the end face of the back plate 1, a cooling water tank 9 is provided on the end face of the back plate 1, a second auxiliary wheel 8 is provided inside the cooling water tank 9, and a collecting wheel 10 is provided on the end face of the back plate 1.

[0032] Furthermore, two guiding mechanisms 3 are respectively installed on both sides of the front end face of the back plate 1, two mold mechanisms 5 are respectively fixedly installed on one side and the middle of the front end face of the back plate 1, two hub mechanisms 6 are respectively rotatably installed on the middle and the other side of the front end face of the back plate 1, the material wheel 2 is rotatably installed on the upper side of one side of the front end face of the back plate 1, the material wheel 2 is used to wind the copper wire that has not yet been drawn, the heating device 4 is fixedly installed on the middle side of one side of the front end face of the back plate 1, the first auxiliary wheel 7 is rotatably installed on the other side of the front end face of the back plate 1, the cooling water tank 9 is fixedly installed on the lower side of one side of the front end face of the back plate 1, the cooling water tank 9 contains coolant to cool the drawn copper wire, and the coolant inside the cooling water tank 9 is connected to the external water tank to form a circulation, the second auxiliary wheel 8 is rotatably installed on the inner wall of the cooling water tank 9, and the collecting wheel 10 is rotatably installed on the other side of the front end face of the back plate 1, the collecting wheel 10 is used to wind the drawn copper wire.

[0033] The steps of using this invention are as follows: During wire drawing, the copper wire on the material wheel 2 is passed through the guide mechanism 3, then through the heating device 4 and connected to the traction rope. The traction rope is wound around the collecting wheel 10. The wire is pulled out from the collecting wheel 10, passes through the guide mechanism 3 at the end, then passes through the second auxiliary wheel 8 and the first auxiliary wheel 7, and then wound around the hub mechanism 6 several times. The wire is pulled out, passes through the mold mechanism 5, and wound around another hub mechanism 6. The wire is then connected to the copper wire through the mold mechanism 5. An external motor is started to drive the collecting wheel 10 and the hub mechanism 6 to rotate, thereby achieving the pulling action. The heated copper wire is initially drawn by the first mold mechanism 5, and then drawn by the second mold mechanism 5. Finally, the drawn copper wire is carried into the cooling water tank 9 by the first auxiliary wheel 7 and the second auxiliary wheel 8, where it is cooled by the coolant inside the cooling water tank 9. Finally, it passes through the guide mechanism 3 and is wound around the outer end of the collecting wheel 10.

[0034] Example 2, please refer to Figures 2 to 4 The difference from the basic embodiment 1 is that the guide mechanism 3 includes an embedded block 301, two guide wheels 305, two resistance blocks 306 and a support rod 302. The end faces of the two resistance blocks 306 are provided with semi-toothed round blocks 307, the two semi-toothed round blocks 307 are connected to gears 308, and the two gears 308 are connected to racks 309.

[0035] Specifically, the end face of the embedded block 301 is provided with a moving groove 313, the inner wall of the moving groove 313 is provided with two placement grooves 312, the inner wall of each placement groove 312 is provided with a resistance groove 311, two resistance blocks 306 are respectively disposed inside the two resistance grooves 311, two semi-toothed round blocks 307 and two gears 308 are respectively disposed inside the two placement grooves 312, the end face of the support rod 302 is provided with two sub-plates 310, two racks 309 are respectively disposed on the end face of the two sub-plates 310, the end face of the support rod 302 is provided with a connecting frame 303, the end face of the connecting frame 303 is provided with two support frames 304, and two guide wheels 305 are respectively disposed inside the two support frames 304.

[0036] Furthermore, two semi-toothed circular blocks 307 are respectively fixedly disposed on opposite end faces of the two resistance blocks 306, two gears 308 are respectively meshed and connected to opposite end faces of the two semi-toothed circular blocks 307, two racks 309 are respectively meshed and connected to opposite end faces of the two gears 308, a moving groove 313 is formed in the middle of the front end face of the embedded block 301, two placement grooves 312 are respectively formed in the bottom and top inner surfaces of the moving groove 313, two resistance grooves 311 are respectively formed in the inner walls of opposite sides of the two placement grooves 312, two resistance blocks 306 are respectively slidably disposed inside the two resistance grooves 311, and viscous damping is provided between the resistance blocks 306 and the resistance grooves 311, and the two semi-toothed circular blocks 307 are respectively Two gears 308 are rotatably positioned between the inner walls of the two placement slots 312 on opposite sides. Two auxiliary plates 310 are fixedly mounted on the upper and lower ends of the support rod 302. Two racks 309 are fixedly mounted on the opposite ends of the two auxiliary plates 310. A connecting frame 303 is fixedly mounted on the front end face of the support rod 302. Two support frames 304 are fixedly mounted on the upper and lower ends of the front end face of the connecting frame 303 by bolts. The distance between the two support frames 304 can be adjusted by adjusting the bolt fixing positions. Guide wheels 305 are rotatably positioned between the front and rear inner walls of the two support frames 304.

[0037] The steps of using this invention are as follows: A copper wire is placed between two guide wheels 305. During transmission, the copper wire experiences a certain positional shift due to its different position on the feed wheel 2. This shift is transmitted to the guide wheels 305, which then transmits the force to the support rod 302 via the support frame 304 and connecting frame 303. The support rod 302 drives the rack 309 to slide within the moving groove 313. The rack 309 drives the gear 308 to rotate. The rotating gear 308 drives the semi-toothed block 307 to rotate. The rotating semi-toothed block 307 drives the resistance block 306 to oscillate within the resistance groove 311. The resistance block 306 is damped within the resistance groove 311. This viscous damping causes the movement of the resistance block 306 to be subjected to a damping force proportional to its speed. This damping force is transmitted in reverse to the support rod 302 via the gear 308 and rack 309, effectively suppressing rapid tension fluctuations and allowing the guide wheels 305 to smoothly return to their original position.

[0038] Example 3, please refer to Figures 5 to 8 The difference from embodiment 2 is that the mold mechanism 5 includes a housing 501, an annular disc 513, a sealing groove 515, and six rear pillars 517. A conical shell 502 is provided inside the housing 501, and six extrusion blocks 504 are provided inside the conical shell 502. Each of the six extrusion blocks 504 has a head block 507 on its end face, an expansion spring 508 on its end face, and a tail block 505 on its end face. Each of the six rear pillars 517 has a push spring 518 inside, an electromagnetic coil 503 is provided on the outer end face of the conical shell 502, and magnetorheological fluid is provided inside the sealing groove 515.

[0039] Specifically, the inner wall of the conical shell 502 has six sliding grooves 510, each of which is equipped with a slider 509. The six sliders 509 are connected to six extrusion blocks 504 respectively. The end face of the conical shell 502 has six front grooves 511, and six expansion springs 508 are respectively installed inside the six front grooves 511. The end faces of the six tail blocks 505 are all equipped with inclined grooves 506. The inner wall of the ring disc 513 is equipped with six inclined blocks 519, which are respectively installed inside the six inclined grooves 506. The inner wall of the conical shell 502 has a pushing ring groove 512, and the ring disc 513 is installed inside the pushing ring groove 512. The end face of the ring disc 513 is equipped with six front pillars 514. The sealing groove 515 is connected to the pushing ring groove 512. The sealing groove 515 has six rear grooves 516, and six rear pillars 517 are respectively installed inside the six rear grooves 516.

[0040] Furthermore, the conical shell 502 is fixedly disposed inside the outer shell 501, six extrusion blocks 504 are equidistantly slidably disposed inside the conical shell 502, six head blocks 507 are respectively fixedly disposed on one side end face of the six extrusion blocks 504, six expansion springs 508 are respectively fixedly disposed on the opposite side end face of the six head blocks 507, the expansion springs 508 are for pulling action, six tail blocks 505 are respectively fixedly disposed on the other side end face of the six extrusion blocks 504, six push springs 518 are respectively fixedly disposed on one side inner wall of the six rear pillars 517, an electromagnetic coil 503 is fixedly sleeved on the outer end face of the conical shell 502 on the other side, six sliding grooves 510 are equidistantly formed on the inner wall of the conical shell 502, six sliders 509 are respectively slidably disposed inside the six sliding grooves 510, the six sliders 509 are respectively fixedly disposed on the opposite side end face of the six extrusion blocks 504, and six front grooves 511 are equidistantly formed on the conical shell 502. On one side end face, six expansion springs 508 are fixedly installed on the inner wall opposite to the six front grooves 511. Six inclined grooves 506 are respectively opened on the end face opposite to the six tail blocks 505. Six inclined blocks 519 are fixedly installed at equal intervals on the inner wall of the ring disk 513. The six inclined blocks 519 are respectively slidably installed on the inner wall of the six inclined grooves 506. The pushing ring groove 512 is opened in the middle of the cone shell 502 near the other side inner wall. The ring disk 513 is slidably sleeved on the inner wall of the pushing ring groove 512. Six front pillars 514 are fixedly installed at equal intervals on one side end face of the ring disk 513. The sealing groove 515 is opened on the inner wall of the pushing ring groove 512. Six rear grooves 516 are equidistantly opened on the inner wall of the sealing groove 515. Six rear pillars 517 are respectively slidably installed inside the six rear grooves 516. Six pushing springs 518 are respectively fixedly installed on the inner wall of the six rear grooves 516. The pushing springs 518 are for pushing action.

[0041] The steps of using this invention are as follows: In the initial state, the expansion spring 508 pulls the extrusion block 504 through the head block 507, allowing the diameter of the extrusion block 504 to be at its maximum. When it is necessary to change the diameter of the extrusion block 504, the electromagnetic coil 503 is energized, causing the electromagnetic coil 503 to generate magnetic force, which changes the magnetorheological fluid inside the sealing groove 515 from liquid to solid. This allows the force that the rear column 517 could not previously transmit to the front column 514 to be transmitted to the front column 514. This force pushes the front column 514, which then compresses the ring disc 513, causing the ring disc 513 to slide inside the pushing ring groove 512. The ring disc 513 compresses the tail block 505 through the inclined block 519 inside the inclined groove 506, causing the tail block 505 to... 05 drives the extrusion block 504 to slide only along the direction of the slide groove 510, thereby reducing the diameter formed by the extrusion block 504. Different diameters can be formed by generating different magnetic forces through the electromagnetic coil 503. The force of the expansion spring 508 is less than that of the push spring 518. Therefore, when the thrust can act on the ring disk 513, it can drive the extrusion block 504 to move. When the electromagnetic coil 503 is de-energized, the magnetorheological fluid will return to the liquid state. At this time, the thrust generated by the push spring 518 cannot be fully applied to the ring disk 513 because a lot will be lost due to the liquid. At this time, the force generated by the push spring 518 is less than the tension generated by the expansion spring 508, so that the extrusion block 504 will reset to the maximum diameter state.

[0042] Example 4, please refer to Figure 9 The difference from embodiment 3 is that the hub mechanism 6 includes a wheel body 601, a plurality of outer ring grooves 607 are provided inside the wheel body 601, a central groove 603 is provided inside the wheel body 601, and a heat dissipation column 604 is provided inside the central groove 603.

[0043] Specifically, the wheel body 601 has an inner ring groove 602 inside, multiple connecting grooves 606 inside, and multiple arc grooves 605 on the end face of the heat dissipation column 604.

[0044] Furthermore, there are four outer ring grooves 607, which are equidistantly located inside the wheel body 601 on the outer side. The center groove 603 is located inside the center of the wheel body 601. The heat dissipation column 604 is fixedly located between the front inner wall and the rear inner wall of the center groove 603. The inner ring groove 602 is located inside the wheel body 601 on the outer side of the middle. There are eight connecting grooves 606, which connect the outer ring grooves 607, the inner ring grooves 602 and the center groove 603 together. There are six arc grooves 605, which are equidistantly located on the outer end face of the heat dissipation column 604.

[0045] The invention is used in the following steps: A low-boiling-point phase change working fluid is injected into the central groove 603. When the wheel body 601 rotates, centrifugal force throws the liquid working fluid into the outer ring groove 607. The copper wire wrapped around the outer end face of the wheel body 601 generates high temperature. This high temperature causes the liquid working fluid inside the outer ring groove 607 to boil and generate bubbles. These bubbles enter the central groove 603 due to centrifugal force. When the bubbles come into contact with the heat dissipation column 604, they condense. The condensed liquid working fluid is thrown back into the outer ring groove 607 from the connecting groove 606 under the action of centrifugal force, thus forming a closed loop. This makes the surface temperature of the wheel body 601 very uniform and reduces the impact of the high temperature of the copper wire on the wheel hub.

[0046] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. A copper wire drawing device, comprising a back plate (1), characterized in that: The back plate (1) has two guide mechanisms (3) on its end face, two mold mechanisms (5) on its end face, and two hub mechanisms (6) on its end face. The guiding mechanism (3) includes an embedded block (301), two guide wheels (305), two resistance blocks (306) and a support rod (302). The end faces of the two resistance blocks (306) are provided with semi-toothed round blocks (307), the two semi-toothed round blocks (307) are connected to gears (308), and the two gears (308) are connected to racks (309). The mold mechanism (5) includes a housing (501), a ring disc (513), a sealing groove (515), and six rear columns (517). A conical shell (502) is provided inside the housing (501), and six extrusion blocks (504) are provided inside the conical shell (502). Each of the six extrusion blocks (504) has a head block (507) on its end face, an expansion spring (508) on its end face, and a tail block (505) on its end face. Each of the six rear columns (517) has a push spring (518) inside its interior. An electromagnetic coil (503) is provided on the outer end face of the conical shell (502), and magnetorheological fluid is provided inside the sealing groove (515). The hub mechanism (6) includes a wheel body (601), which has multiple outer ring grooves (607) inside and a central groove (603) inside. A heat dissipation column (604) is provided inside the central groove (603).

2. The copper wire drawing device according to claim 1, characterized in that: The end face of the embedded block (301) is provided with a moving groove (313), and the inner wall of the moving groove (313) is provided with two placement grooves (312). The inner wall of the two placement grooves (312) is provided with a resistance groove (311). The two resistance blocks (306) are respectively disposed inside the two resistance grooves (311), and the two semi-toothed round blocks (307) and the two gears (308) are respectively disposed inside the two placement grooves (312).

3. The copper wire drawing device according to claim 1, characterized in that: The support rod (302) has two sub-plates (310) on its end face, and the two racks (309) are respectively disposed on the end faces of the two sub-plates (310).

4. The copper wire drawing device according to claim 1, characterized in that: The end face of the support rod (302) is provided with a connecting frame (303), and the end face of the connecting frame (303) is provided with two support frames (304). The two guide wheels (305) are respectively arranged inside the two support frames (304).

5. A copper wire drawing device according to claim 1, characterized in that: The inner wall of the conical shell (502) is provided with six sliding grooves (510), and each of the six sliding grooves (510) is provided with a slider (509). The six sliders (509) are respectively connected to the six extrusion blocks (504).

6. The copper wire drawing device according to claim 1, characterized in that: The cone shell (502) has six front grooves (511) on its end face, and six expansion springs (508) are respectively disposed inside the six front grooves (511). The end faces of the six tail blocks (505) are all provided with inclined grooves (506). The inner wall of the ring disc (513) is provided with six inclined blocks (519), and the six inclined blocks (519) are respectively disposed inside the six inclined grooves (506).

7. A copper wire drawing device according to claim 1, characterized in that: The inner wall of the conical shell (502) is provided with a pushing ring groove (512), the ring disk (513) is disposed inside the pushing ring groove (512), the end face of the ring disk (513) is provided with six front pillars (514), the sealing groove (515) is connected to the pushing ring groove (512), the sealing groove (515) is provided with six rear grooves (516), and the six rear pillars (517) are respectively disposed inside the six rear grooves (516).

8. A copper wire drawing device according to claim 1, characterized in that: The wheel body (601) has an inner ring groove (602) inside, the wheel body (601) has multiple connecting grooves (606) inside, and the heat dissipation column (604) has multiple arc grooves (605) on its end face.

9. A copper wire drawing device according to claim 1, characterized in that: The back plate (1) is provided with a material wheel (2), the back plate (1) is provided with a heating device (4), and the back plate (1) is provided with a first auxiliary wheel (7).

10. A copper wire drawing device according to claim 1, characterized in that: A cooling water tank (9) is provided on the end face of the back plate (1), a second auxiliary wheel (8) is provided inside the cooling water tank (9), and a collecting wheel (10) is provided on the end face of the back plate (1).

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