Copper conductor annealing device and annealing method thereof

Abstract

The copper wire annealing device comprises a portal frame, a steel plate is installed on the top wall of the portal frame, and a side-by-side copper wire heat exchange structure used for being connected with a copper wire is arranged on the outer wall of one side of the steel plate; and the H-shaped hollow truss is installed on the outer wall of one side of the portal frame, and a non-contact water-cooling cooling mechanism used for enabling a copper wire in the side-by-side copper wire heat exchange structure to penetrate out and conducting cooling is arranged in the H-shaped hollow truss. Compared with a traditional air-cooling direct blowing mode, the water-cooling non-contact cooling mode is higher in heat exchange efficiency, the copper wire can be cooled to the needed annealing temperature from the high-temperature state more quickly, cooling liquid in the non-contact water-cooling cooling mechanism does not make contact with the copper wire, the surface of the wire is not exposed in the air like the air-cooling direct blowing mode, and the cooling effect is better. The problems of oxidation and the like can be effectively avoided, and the surface quality of the copper wire is protected.

Description

Technical Field

[0001] The invention relates to the technical field of copper wire annealing, in particular to a copper wire annealing device and an annealing method thereof. Background Art

[0002] The annealing process in copper wire processing is a key heat treatment process, which plays a decisive role in improving the overall performance and quality of the wire. The main purpose of annealing is to improve the physical and chemical properties of the wire through three stages: heating, insulation, and cooling. Specifically, annealing first allows the inside of the copper wire to reach a sufficient temperature through the heating stage, so that the lattice defects in the material can be repaired and the grains can be rearranged and grown; then, in the insulation stage, a certain temperature is maintained to allow the changes in the grain structure to be thorough to ensure the uniformity of the material properties; finally, in the cooling stage, the cooling rate is controlled to adjust the final microstructure to optimize the material properties. This whole process not only significantly improves the plasticity and stability of the wire and reduces the hardness, but also helps to enhance the conductivity of the wire and reduce energy loss;

[0003] For example, a copper wire single-filament annealing device disclosed in the authorization announcement number CN211897026U includes a support table, a heating box and a cooling box, multiple groups of first rollers are rotatably arranged between the front inner wall and the rear inner wall in the heating chamber, multiple groups of second rollers are rotatably arranged between the front inner wall and the rear inner wall in the cooling box, multiple groups of carbon fiber heating rods are arranged in the heating chamber, multiple groups of wire entry holes are arranged on the right end wall of the heating box, multiple groups of wire tubes are arranged on the left end wall of the heating box, and multiple groups of annular grooves are arranged on the multiple groups of first rollers and the multiple groups of second rollers, which can perform annealing of multiple strands of copper wire single-filaments. , and can extend the length of a single annealed single wire, with higher efficiency. However, in the process of annealing the copper wire, this technical solution mainly uses a blower to cool the high-temperature copper wire by direct air cooling, thereby achieving the purpose of annealing. However, direct air cooling will cause the surface of the copper wire near the air outlet to cool too quickly, resulting in too fast solidification of the wire structure, affecting the regrowth of grains and the rearrangement of grain boundaries, thereby affecting the plasticity and conductivity of the wire. In particular, for copper wires with larger diameters, direct air cooling is difficult to achieve a good cooling effect, resulting in uneven grain structure inside the wire. Summary of the invention

[0004] The object of the present invention is to provide a copper wire annealing device and an annealing method thereof. First, a side-by-side copper wire heat exchange structure connects and guides the copper wire to be annealed in a high-temperature state, and the copper wire is sent to a contactless water cooling mechanism. The coolant circulating inside the contactless water cooling mechanism enables the pipe and the copper wire to exchange heat and cool down, and cooperates with the air cooling structure to blow and cool down at the upper and lower positions of the contactless water cooling mechanism to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above object, the present invention provides the following technical solution: a copper wire annealing device, comprising:

[0006] A gantry, wherein a steel plate is installed on the top wall of the gantry, and a side-by-side copper wire heat exchange structure for connecting copper wires is arranged on an outer wall of one side of the steel plate;

[0007] An H-shaped hollow truss, wherein the H-shaped hollow truss is installed on an outer wall of one side of the gantry, and a non-contact water cooling mechanism is provided inside the H-shaped hollow truss for passing the copper wires in the side-by-side copper wire heat exchange structure through and cooling the copper wires, and an upper air cooling structure and a lower air cooling structure are provided at the top and bottom of the H-shaped hollow truss respectively for air cooling the non-contact water cooling mechanism;

[0008] A base is arranged on one side of the gantry, and a right-angle frame is fixed on the top of the base, a vertical plate is installed on the surface of the right-angle frame, and a multi-line winding unit and an active wire feeding unit are arranged on the vertical plate in sequence from one end close to the H-shaped hollow truss to the other end, and a PLC control panel electrically connected to the upper air-cooling structure, the lower air-cooling structure, the active wire feeding unit, and the input end of the multi-line winding unit is installed on one side of the surface of the H-shaped hollow truss.

[0009] Preferably, the side-by-side copper wire heat exchange structure includes a square column sliding structure arranged on the outer wall of one side of the steel plate, and a plurality of aluminum alloy pipe sleeves installed on the outer wall of one side of the steel plate through the square column sliding structure, each aluminum alloy pipe sleeve is for a copper wire to pass through, and a straight cutting groove is arranged at the top end of the aluminum alloy pipe sleeve, and the cross-sectional shape of the straight cutting groove is fan-shaped.

[0010] Preferably, the square column sliding structure includes four symmetrical square-mouthed straight arms fixed on the outer wall of one side of the steel plate, and a rectangular cut-out groove arranged on the outer surface of the aluminum alloy pipe sleeve and slidably connected to the square-mouthed straight arms.

[0011] Preferably, the contactless water cooling mechanism includes two right-angled longitudinal beams symmetrically fixed at the top of the H-shaped hollow truss, a plurality of parallel and side-by-side hollow pipe sleeves installed at the bottom ends of the two right-angled longitudinal beams, a wiring pipe installed through the inside of the hollow pipe sleeves, and a multi-point liquid inlet pipe group and a multi-point liquid outlet pipe group for connecting the openings at the head and tail ends of the plurality of hollow pipe sleeves.

[0012] Preferably, the multi-point liquid inlet pipe group and the multi-point liquid outlet pipe group have the same structure, and the multi-point liquid inlet pipe group includes a right-angle elbow installed at the top of each hollow pipe sleeve, and a three-way pipe installed at the top of the right-angle elbow.

[0013] Preferably, the upper air-cooling structure includes a flat plate installed on the top of the H-shaped hollow truss, and a fan fixed at the center position of the top of the flat plate, and a gap is provided between the lower air outlet of the fan and the upper surface of the hollow pipe sleeve.

[0014] Preferably, the active wire feeding unit includes a main wire feeding roller and an auxiliary wire feeding roller rotatably installed on one side of the vertical plate surface, and a pulley driving unit installed on the back side of the vertical plate for driving the auxiliary wire feeding roller to rotate, and a second belt transmission structure for power transmission is installed at the same end of the main wire feeding roller and the auxiliary wire feeding roller.

[0015] Preferably, the pulley drive unit is composed of a motor base installed on the back of the vertical plate, a servo motor fixed on the surface of the motor base, and a first belt transmission structure installed on the output end of the servo motor.

[0016] Preferably, the multi-wire winding unit comprises a stepper motor installed on the other side of the back of the vertical plate, a main shaft installed on the output end of the stepper motor, and a plurality of arched winding discs installed on the surface of the main shaft, and the outer diameter of the main shaft is smaller than the outer diameter of the main wire feeding roller.

[0017] The present invention also provides a method for annealing a copper wire, such as the copper wire annealing device described above, comprising the following steps:

[0018] S101: Leading out a plurality of copper wires to be cooled and annealed at a high temperature from a parallel copper wire heat exchange structure, and allowing the copper wires to enter a non-contact water cooling mechanism until being led out, so that the copper wires bypass an active wire feeding unit and are connected to a multi-wire winding unit;

[0019] S102: connecting the liquid inlet and the liquid outlet of the non-contact water cooling mechanism to the pumping end and the recovery end of the coolant respectively;

[0020] S103: The multi-wire winding unit slowly winds up the copper wire, and the active wire feeding unit plays a role of assisting the wire feeding, so that the high-temperature copper wire is pulled and moved in the side-by-side copper wire heat exchange structure and the non-contact water cooling mechanism;

[0021] S104: The parallel copper wire heat exchange structure increases the heat exchange surface area, ensures that the copper wire is initially and evenly cooled naturally, and provides copper wires with uniform temperature for subsequent processes. The coolant circulating inside the non-contact water cooling mechanism exchanges heat with the copper wire without contact, so that the copper wire is gradually cooled to the required temperature.

[0022] S05: The upper air cooling structure and the lower air cooling structure perform opposite blowing cooling, so that the non-contact water cooling mechanism itself further cools down quickly to adjust the cooling speed of the copper wire. Finally, the multi-wire winding unit actively winds up multiple cooled and annealed copper wires.

[0023] Compared with the prior art, the beneficial effects of the present invention are as follows: the copper wire annealing device and the annealing method thereof are provided with structures that cooperate with each other, such as a side-by-side copper wire heat exchange structure and a contactless water cooling mechanism, and the side-by-side copper wire heat exchange structure is used to ensure that the copper wire is uniformly naturally cooled in the initial stage of the annealing process, thereby avoiding the problem of uneven internal structure and performance degradation of the copper wire caused by too fast temperature reduction, and the coolant circulating inside the contactless water cooling mechanism can quickly contact and exchange heat with the high-temperature copper wire, thereby effectively reducing the temperature of the wire. Compared with the traditional air-cooled direct blowing, the water-cooled contactless cooling method has higher heat exchange efficiency, and can cool the copper wire from a high temperature state to the required annealing temperature more quickly. Moreover, since the coolant inside the contactless water cooling mechanism does not contact the copper wire, the surface of the wire will not be exposed to the air like air-cooled direct blowing, and oxidation and other problems can be effectively avoided, thereby protecting the surface quality of the copper wire. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic diagram of the main structure of the present invention;

[0025] Figure 2 The three-dimensional structure of the present invention is shown in FIG. Figure 1 ;

[0026] Figure 3 The three-dimensional structure of the present invention is shown in FIG. Figure 2 ;

[0027] Figure 4 The three-dimensional structure of the present invention is shown in FIG. Figure 3 ;

[0028] Figure 5 This is a schematic diagram of the three-dimensional structure of the side-by-side copper wire heat exchange structure in the second embodiment of the present invention;

[0029] Figure 6 The three-dimensional structure of the non-contact water cooling mechanism in the third embodiment of the present invention is shown in FIG. Figure 1 ;

[0030] Figure 7 The three-dimensional structure of the non-contact water cooling mechanism in the third embodiment of the present invention is shown in FIG. Figure 2 ;

[0031] Figure 8 It is a schematic diagram of the three-dimensional structure of the active wire feeding unit and the copper wire winding unit in the fourth embodiment of the present invention;

[0032] In the figure: 1. Gantry; 2. Steel plate; 3. H-shaped hollow truss; 4. PLC control panel; 5. Parallel copper wire heat exchange structure; 501. Square straight arm; 502. Aluminum alloy pipe sleeve; 503. Rectangular cut-out groove; 6. Contactless water cooling mechanism; 601. Right-angle longitudinal beam; 602. Hollow pipe sleeve; 603. Wire routing pipe; 604. Multi-point liquid inlet pipe group; 605. Multi-point liquid outlet pipe group; 606. Right-angle elbow; 7 , upper air-cooling structure; 701, flat plate; 702, fan; 8, lower air-cooling structure; 9, base; 10, right-angle frame; 11, vertical plate; 12, active wire feeding unit; 1201, pulley drive unit; 1202, main wire feeding roller; 1203, auxiliary wire feeding roller; 1204, second belt transmission structure; 13, multi-wire winding unit; 1301, stepping motor; 1302, main shaft; 1303, arched winding tray. DETAILED DESCRIPTION

[0033] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0034] Embodiment 1, by Figures 1 to 4 The present invention comprises a gantry 1, a steel plate 2 is installed on the top wall of the gantry 1, and a side-by-side copper wire heat exchange structure 5 for connecting copper wires is arranged on the outer wall of one side of the steel plate 2;

[0035] An H-shaped hollow truss 3 is installed on one side outer wall of the gantry 1, and a non-contact water cooling mechanism 6 is provided inside the H-shaped hollow truss 3 for passing the copper wires in the side-by-side copper wire heat exchange structure 5 through and cooling the copper wires. An upper air cooling structure 7 and a lower air cooling structure 8 are provided at the top and bottom of the H-shaped hollow truss 3 respectively for air cooling the non-contact water cooling mechanism 6.

[0036] Base 9, base 9 is arranged on one side of gantry 1, and a right angle frame 10 is fixed on the top of base 9, and a vertical plate 11 is installed on the surface of right angle frame 10, and vertical plate 11 is sequentially arranged with multi-wire winding unit 13 and active wire feeding unit 12 from one end close to H-shaped hollow truss 3 to the other end, and a PLC control panel 4 electrically connected with the input end of upper air cooling structure 7, lower air cooling structure 8, active wire feeding unit 12 and multi-wire winding unit 13 is installed on one side of the surface of H-shaped hollow truss 3. The device uses a side-by-side copper wire heat exchange structure 5 to ensure that the copper wire is uniformly cooled naturally in the initial stage of annealing process, avoiding the internal of copper wire caused by too fast temperature drop. The problems of structural unevenness and performance degradation are solved, and the coolant circulating inside the contactless water cooling mechanism 6 can quickly contact with the high-temperature copper wire and exchange heat, effectively reducing the temperature of the wire. Compared with the traditional air-cooled direct blowing, the water-cooled contactless cooling method has higher heat exchange efficiency, and can cool the copper wire from a high temperature state to the required annealing temperature more quickly. Moreover, since the coolant inside the contactless water cooling mechanism 6 does not contact the copper wire, the wire surface will not be exposed to the air like air-cooled direct blowing, which can effectively avoid oxidation and other problems, protect the surface quality of the copper wire, and achieve a uniform annealing effect even for copper wires with larger diameters.

[0037] A copper wire annealing method of this embodiment, such as the copper wire annealing device mentioned above, comprises the following steps:

[0038] S101: Leading out a plurality of copper wires to be cooled and annealed at high temperature from the parallel copper wire heat exchange structure 5, and allowing the copper wires to enter the non-contact water cooling mechanism 6 until being led out, so that the copper wires bypass the active wire feeding unit 12 and are connected to the multi-wire winding unit 13;

[0039] S102: connecting the liquid inlet and the liquid outlet of the non-contact water cooling mechanism 6 to the pumping end and the recovery end of the coolant respectively;

[0040] S103: the multi-wire winding unit 13 slowly winds up the copper wire, and the active wire feeding unit 12 plays the role of auxiliary wire feeding, so that the high-temperature copper wire is pulled and moved in the parallel copper wire heat exchange structure 5 and the non-contact water cooling mechanism 6;

[0041] S104: The parallel copper wire heat exchange structure 5 increases the heat exchange surface area, ensures that the copper wire is initially and evenly cooled naturally, and provides the copper wire with uniform temperature for the subsequent process. The coolant circulating inside the non-contact water cooling mechanism 6 performs non-contact heat exchange with the copper wire, so that the copper wire is gradually cooled to the required temperature.

[0042] S105: The upper air cooling structure 7 and the lower air cooling structure 8 perform opposite blowing to cool down the wire, so that the non-contact water cooling mechanism 6 itself further cools down rapidly to adjust the cooling speed of the copper wire. Finally, the multi-wire winding unit 13 actively winds up the multiple cooled and annealed copper wires.

[0043] Embodiment 2, based on embodiment 1, Figure 5 It is given that the side-by-side copper wire heat exchange structure 5 includes a square column sliding structure arranged on the outer wall of one side of the steel plate 2, and a plurality of aluminum alloy tube sleeves 502 installed on the outer wall of one side of the steel plate 2 through the square column sliding structure. Each aluminum alloy tube sleeve 502 is for a copper wire to pass through. A straight cutting groove is arranged at the top of the aluminum alloy tube sleeve 502. The cross-sectional shape of the straight cutting groove is fan-shaped. The copper wire enters the aluminum alloy tube sleeve 502, and is led out from the aluminum alloy tube sleeve 502 and sent to the contactless water cooling mechanism 6. By arranging multiple copper wires side by side, the heat exchange surface area between them is increased. Each guide uses an aluminum alloy tube sleeve 502 independently to reduce the temperature gradient and avoid excessive temperature difference between the surface and the inside of the copper wire.

[0044] The square column sliding structure includes four symmetrical square straight arms 501 fixed on the outer wall of one side of the steel plate 2, and a rectangular cut-out groove 503 arranged on the outer surface of the aluminum alloy pipe sleeve 502 and slidably connected to the square straight arms 501. When the staff needs to replace the aluminum alloy pipe sleeve 502, they can manually slide the aluminum alloy pipe sleeve 502 so that the aluminum alloy pipe sleeve 502 is no longer plugged into the square straight arms 501 through the rectangular cut-out groove 503, so as to facilitate the maintenance operation of the staff.

[0045] Embodiment 3, based on embodiment 1, Figure 6 , Figure 7 It is given that the contactless water cooling mechanism 6 includes two right-angled longitudinal beams 601 symmetrically fixed at the top of the H-shaped hollow truss 3, a plurality of parallel and side-by-side hollow pipe sleeves 602 installed at the bottom of the two right-angled longitudinal beams 601, a wiring pipe 603 installed through the hollow pipe sleeve 602, and a multi-point liquid inlet pipe group 604 and a multi-point liquid outlet pipe group 605 for connecting the openings of the first and tail ends of the plurality of hollow pipe sleeves 602. The multi-point liquid inlet pipe group 604 and the multi-point liquid outlet pipe group 605 can be connected to a water pump and a return water tank through a valve body, and the copper wire is routed in the wiring pipe 603. At this time, the wiring pipe 603 isolates the copper wire from the coolant in the hollow pipe sleeve 602, and uses the coolant to cool the copper wire and the wiring pipe 603 in a high-temperature state, which can cool the copper wire to the target temperature. Since the coolant surrounds the wiring pipe 603 and the peripheral side of the copper wire, it ensures that the wire obtains a uniform annealing effect;

[0046] The multi-point liquid inlet pipe group 604 and the multi-point liquid outlet pipe group 605 have the same structure. The multi-point liquid inlet pipe group 604 includes a right-angle elbow 606 installed at the top of each hollow pipe sleeve 602, and a tee installed at the top of the right-angle elbow 606. The multi-point liquid inlet pipe group 604 and the multi-point liquid outlet pipe group 605 are composed of a plurality of tees, right-angle pipes and other components that can be connected to the right-angle elbow 606, and have a simple structure and stable and reliable operation.

[0047] The cross-sectional shape of the hollow tube sleeve 602 is a circle with three colinear centers, and the wiring tube 603 is located in the middle circle, so that the capacity of the coolant is larger and better surrounds the wiring tube 603 and the copper wire;

[0048] The upper air-cooling structure 7 includes a flat plate 701 installed on the top of the H-shaped hollow truss 3, and a fan 702 fixed at the center position of the top of the flat plate 701. A gap is provided between the lower air outlet of the fan 702 and the upper surface of the hollow pipe sleeve 602. The fan 702 generates downward wind force. The upper air-cooling structure 7 and the lower air-cooling structure 8 perform blowing and cooling at the upper and lower positions of the non-contact water-cooling cooling mechanism 6, which can further adjust the cooling speed and promote a rapid reduction in the guide temperature.

[0049] Embodiment 4, based on embodiment 1, Figure 8 It is given that the active wire feeding unit 12 includes a main wire feeding roller 1202 and an auxiliary wire feeding roller 1203 rotatably mounted on one side of the surface of the vertical plate 11, and a pulley driving unit 1201 mounted on the back of the vertical plate 11 for driving the auxiliary wire feeding roller 1203 to rotate, and a second belt transmission structure 1204 for power transmission is installed at the same end of the main wire feeding roller 1202 and the auxiliary wire feeding roller 1203;

[0050] The pulley drive unit 1201 is composed of a motor base installed on the back of the vertical plate 11, a servo motor fixed on the surface of the motor base and a first belt transmission structure installed on the output end of the servo motor. The multi-wire winding unit 13 includes a stepper motor 1301 installed on the other side of the back of the vertical plate 11, a main shaft 1302 installed on the output end of the stepper motor 1301 and a plurality of arched winding discs 1303 installed on the surface of the main shaft 1302. The outer diameter of the main shaft 1302 is smaller than the outer diameter of the main wire feeding roller 1202. The copper wire passes over the main wire feeding roller 1202 and the auxiliary wire feeding roller 1203 and is finally connected to the arched winding disc 1303. The pulley drive unit 1201 drives the auxiliary wire feeding roller 1203 and the main wire feeding roller 1202 to rotate synchronously in the same direction, and the stepper motor 1301 drives the main shaft 1302 and the plurality of arched winding discs 1303 to rotate together, so as to achieve the purpose of collecting multiple copper wires in batches.

[0051] The active wire feeding unit 12 and the active wire feeding unit 12 can also ensure that the copper wire is not damaged during transportation and reeling, thereby protecting the quality and integrity of the wire surface.

[0052] When the embodiment of the present application is in use, the staff first leads out the multiple copper wires to be cooled and annealed at high temperature from the side-by-side copper wire heat exchange structure 5, and makes the copper wires enter the contactless water cooling mechanism 6 until they are led out, so that the copper wires bypass the active wire feeding unit 12 and are connected to the multi-wire winding unit 13. Then the staff connects the liquid inlet and outlet of the contactless water cooling mechanism 6 to the pumping end and the recovery end of the coolant respectively. The coolant can be cold water, and the pumping end and the recovery end can be a water pump and a return water tank respectively. At this time, the coolant enters the contactless water cooling mechanism 6, and is isolated and surrounded by the copper wires through the chamber inside the contactless water cooling mechanism 6. The coolant does not directly contact the copper wires. After the preparation work is completed, the staff turns on the multi-wire winding unit 13, the active wire feeding unit 12, and the upper air cooling structure 7 through the PLC control panel 4 in turn to work. Then the multi-wire winding unit 13 slowly winds up the copper wires, and the active wire feeding unit 12 It plays the role of auxiliary wire feeding, so that the high-temperature copper wire is pulled and moved in the side-by-side copper wire heat exchange structure 5 and the contactless water cooling mechanism 6. In the process of the copper wire being pulled, the side-by-side copper wire heat exchange structure 5 increases the heat exchange surface area, ensures that the copper wire is initially and evenly naturally cooled, and provides copper wires with uniform temperature for subsequent processes. The coolant circulating inside the contactless water cooling mechanism 6 performs contactless heat exchange with the copper wire, so that the copper wire is gradually reduced to the required temperature. During this process, the coolant is always circulated, and the upper air cooling structure 7 and the lower air cooling structure 8 above and below the contactless water cooling mechanism 6 perform opposite blowing cooling, so that the contactless water cooling mechanism 6 itself is further quickly cooled to adjust the cooling speed of the copper wire. The cooled copper wire is smoothly guided to the multi-wire winding unit 13 by the active wire feeding unit 12, and the multi-wire winding unit 13 actively winds up multiple cooled and annealed copper wires to ensure the continuity and stability of the production line.

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

[0054] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A copper wire annealing device, characterized in that: include: A gantry (1), wherein a steel plate (2) is installed on the top wall of the gantry (1), and a side-by-side copper wire heat exchange structure (5) for connecting copper wires is arranged on an outer wall of one side of the steel plate (2); An H-shaped hollow truss (3), the H-shaped hollow truss (3) being mounted on an outer wall of one side of the gantry (1), and a non-contact water cooling mechanism (6) for allowing the copper wires in the side-by-side copper wire heat exchange structure (5) to pass through and cool down the copper wires, and an upper air cooling structure (7) and a lower air cooling structure (8) for air cooling the non-contact water cooling mechanism (6) are respectively disposed at the top and bottom ends of the H-shaped hollow truss (3); A base (9) is arranged on one side of the gantry (1), and a right-angle frame (10) is fixed on the top of the base (9), a vertical plate (11) is installed on the surface of the right-angle frame (10), and the vertical plate (11) is sequentially provided with a multi-line winding unit (13) and an active wire feeding unit (12) from one end close to the H-shaped hollow truss (3) to the other end, and a PLC control panel (4) electrically connected to the input ends of the upper air-cooling structure (7), the lower air-cooling structure (8), the active wire feeding unit (12), and the multi-line winding unit (13) is installed on one side of the surface of the H-shaped hollow truss (3).

2. A copper wire annealing device according to claim 1, characterized in that: The side-by-side copper wire heat exchange structure (5) comprises a square column sliding structure arranged on the outer wall of one side of the steel plate (2), and a plurality of aluminum alloy pipe sleeves (502) installed on the outer wall of one side of the steel plate (2) via the square column sliding structure, each aluminum alloy pipe sleeve (502) allowing a copper wire to pass through, and a linear cutting groove is arranged at the top end of the aluminum alloy pipe sleeve (502), and the cross-sectional shape of the linear cutting groove is fan-shaped.

3. A copper wire annealing device according to claim 2, characterized in that: The square column sliding structure comprises four symmetrical square straight arms (501) fixed on the outer wall of one side of the steel plate (2), and a rectangular cut-out groove (503) arranged on the outer surface of the aluminum alloy pipe sleeve (502) and slidably connected to the square straight arms (501).

4. A copper wire annealing device according to claim 1, characterized in that: The contactless water cooling mechanism (6) comprises two right-angle longitudinal beams (601) symmetrically fixed at the top of the H-shaped hollow truss (3), a plurality of parallel and side-by-side hollow pipe sleeves (602) installed at the bottom of the two right-angle longitudinal beams (601), a wiring pipe (603) installed through the inside of the hollow pipe sleeves (602), and a multi-point liquid inlet pipe group (604) and a multi-point liquid outlet pipe group (605) for connecting the openings at the head and tail ends of the plurality of hollow pipe sleeves (602).

5. A copper wire annealing device according to claim 4, characterized in that: The multi-point liquid inlet pipe group (604) and the multi-point liquid outlet pipe group (605) have the same structure. The multi-point liquid inlet pipe group (604) includes a right-angle elbow (606) installed at the top of each hollow pipe sleeve (602), and a three-way pipe installed at the top of the right-angle elbow (606).

6. A copper wire annealing device according to claim 4, characterized in that: The upper air-cooling structure (7) comprises a flat plate (701) installed at the top of the H-shaped hollow truss (3), and a fan (702) fixed at the center position of the top of the flat plate (701), and a gap is provided between the lower air outlet of the fan (702) and the upper surface of the hollow pipe sleeve (602).

7. A copper wire annealing device according to claim 1, characterized in that: The active wire feeding unit (12) comprises a main wire feeding roller (1202) and an auxiliary wire feeding roller (1203) rotatably mounted on one side of the surface of the vertical plate (11), and a pulley driving unit (1201) mounted on the back side of the vertical plate (11) for driving the auxiliary wire feeding roller (1203) to rotate, wherein a second belt transmission structure (1204) for power transmission is mounted on the same end of the main wire feeding roller (1202) and the auxiliary wire feeding roller (1203).

8. A copper wire annealing device according to claim 7, characterized in that: The pulley drive unit (1201) is composed of a motor base installed on the back of the vertical plate (11), a servo motor fixed on the surface of the motor base, and a first belt transmission structure installed on the output end of the servo motor.

9. A copper wire annealing device according to claim 8, characterized in that: The multi-wire winding unit (13) comprises a stepper motor (1301) installed on the other side of the back of the vertical plate (11), a main shaft (1302) installed at the output end of the stepper motor (1301), and a plurality of arched winding discs (1303) installed on the surface of the main shaft (1302), wherein the outer diameter of the main shaft (1302) is smaller than the outer diameter of the main wire feeding roller (1202).

10. A method for annealing a copper wire, comprising the copper wire annealing device according to any one of claims 1 to 9, characterized in that: The following steps are involved: S101: Leading out a plurality of high-temperature copper wires to be cooled and annealed from a parallel copper wire heat exchange structure (5), and allowing the copper wires to enter a non-contact water cooling mechanism (6) until they are led out, thereby allowing the copper wires to bypass an active wire feeding unit (12) and be connected to a multi-wire winding unit (13); S102: connecting the liquid inlet and the liquid outlet of the non-contact water cooling mechanism (6) to the pumping end and the recovery end of the cooling liquid respectively; S103: the multi-wire winding unit (13) slowly winds up the copper wire, while the active wire feeding unit (12) plays the role of assisting the wire feeding, so that the high-temperature copper wire is pulled and moved in the parallel copper wire heat exchange structure (5) and the non-contact water cooling mechanism (6); S104: The parallel copper wire heat exchange structure (5) serves to increase the heat exchange surface area, ensure that the copper wire is initially and evenly cooled naturally, and provide the copper wire with uniform temperature for subsequent processes. The coolant circulating inside the non-contact water cooling mechanism (6) performs non-contact heat exchange with the copper wire, so that the copper wire is gradually cooled to the required temperature. S105: The upper air cooling structure (7) and the lower air cooling structure (8) perform opposite blowing to cool down the wire, so that the non-contact water cooling mechanism (6) itself further cools down rapidly to adjust the cooling speed of the copper wire, and finally the multi-wire winding unit (13) actively winds up the plurality of cooled and annealed copper wires.

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