Self-adaptive temperature control annealing oxygen-free copper rod disc drawing equipment

Through adaptive temperature-controlled annealed oxygen-free copper rod disc pulling equipment, the cooling components composed of liquid cooling system and low-temperature nitrogen tank are used to solve the stress problem caused by temperature difference during copper rod disc pulling, and the processing quality of copper rods is improved.

CN120325713APending Publication Date: 2025-07-18JIANGYIN HEHONG SPECIAL MATERIALS CO LTD
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Patent Information

Application Number
CN202510528192.1
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-04-25
Publication Date
2025-07-18

AI Technical Summary

Technical Problem

During the processing of existing copper rods, the temperature difference between before and after the disc pulling is large, causing stress to the copper rod and affecting the processing quality.

Method used

Adaptive temperature-controlled annealed oxygen-free copper rod disc pulling equipment is adopted to gradually reduce the temperature of the copper rod, reduce the temperature difference, and avoid the cooling and shrinkage of the copper rod through the cooling component composed of a liquid cooling system and a low-temperature nitrogen tank.

Benefits of technology

Effectively reduce the temperature difference between copper rod plate pulling, reduce the influence of stress, and improve the processing quality of copper rods.

✦ Generated by Eureka AI based on patent content.

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Abstract

The invention discloses a self-adaptive temperature control annealing oxygen-free copper rod disc drawing device in the technical field of copper rod machining, which comprises an upper protective tank, a refrigerator and a copper rod heating device, the upper protective tank is parallel to the copper rod heating device, and a disc drawing pretreatment piece is arranged between the upper protective tank and the copper rod heating device; the upper end of the upper protection tank is sequentially connected with the coiling and pulling pretreatment part and the copper rod heating device in a sealed mode, the copper rod can sequentially pass through the copper rod heating device and the coiling and pulling pretreatment part to enter the upper protection tank, the coiling and pulling pretreatment part is provided with a liquid cooling system, and the upper protection tank is provided with a coiling and pulling assembly and a coiling and pulling assembly. The disc pulling assembly is guided into the upper protection tank from the bottom of the upper protection tank; the cooling assembly is composed of a low-temperature nitrogen tank and an upper mounting cover, and a communication assembly is arranged between the low-temperature nitrogen tank and the upper mounting cover, the temperature difference between the copper rod before and after coiling and pulling can be reduced, the possibility that the copper rod is affected by stress due to the temperature difference is avoided, and the machining quality of the copper rod is improved.
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Description

Technical Field

[0001] The present invention relates to the technical field of copper rod processing, and specifically provides an adaptive temperature-controlled annealing oxygen-free copper rod drawing equipment for disk drawing. Background Art

[0002] During the processing of copper rods, peeling and wire drawing are required. A large part of the heat generated during the wire drawing process is carried to the disk drawing disk, and the temperature of the disk drawing disk will gradually increase. In order not to affect the quality of copper rod wire drawing, in the prior art, a water cooling device is generally provided on the disk drawing disk to keep the disk drawing disk at a low temperature. This results in a too large temperature difference between the copper rod and the disk drawing disk. Existing disk drawing is generally carried out directly in the air, and the copper rod contacts with oxygen in the air during the disk drawing process, causing the copper rod to oxidize and mutate.

[0003] In the prior art, in order to prevent the copper rod from being oxidized, the copper rod is mostly drawn in a closed environment, which results in a large temperature difference between the high-temperature copper rod after drawing and the external air. This causes the copper rod to be subjected to a large temperature difference change before and after drawing, which easily causes the copper rod to shrink rapidly, easily generates stress, and affects the final quality. Summary of the Invention

[0004] The technical problem of the present invention is to provide an adaptive temperature-controlled annealing oxygen-free copper rod drawing equipment for disk drawing to reduce the temperature difference before and after the copper rod drawing, avoid the possibility of the copper rod being affected by stress due to the temperature difference, and improve the quality of copper rod processing.

[0005] To achieve the above object, the present invention provides the following technical solution: An adaptive temperature-controlled annealing oxygen-free copper rod drawing equipment for disk drawing, including an upper protective tank, a refrigerating machine and a copper rod heating device. The upper protective tank is arranged in parallel with the copper rod heating device. A pre-drawing treatment member is arranged between the upper protective tank and the copper rod heating device. The upper end of the upper protective tank is hermetically connected to the pre-drawing treatment member and the copper rod heating device in sequence. The copper rod can sequentially pass through the copper rod heating device and the pre-drawing treatment member and enter the upper protective tank. A liquid cooling system is arranged on the pre-drawing treatment member. The following are arranged on the upper protective tank:

[0006] A drawing assembly, which is introduced into the upper protective tank from the bottom of the upper protective tank, and the drawing assembly can automatically adjust the winding height of the copper wire according to the number of turns of the wound copper wire coil;

[0007] A temperature reduction assembly, which consists of a low-temperature nitrogen tank and an upper mounting cover. A connecting component is arranged between the low-temperature nitrogen tank and the upper mounting cover. The connecting component can introduce low-temperature nitrogen into the upper mounting cover in a multiple incremental manner according to the temperature difference between the inside and outside of the upper protective tank.

[0008] As a further solution of the present invention, the liquid cooling system includes a condensate tank. There are two groups of the condensate tanks, which are fixedly installed outside the upper protective tank. A discharge pipe is fixedly installed at the upper end of one group of the condensate tanks, and an inlet pipe is fixedly installed on the other condensate tank. A spiral pipe is fixedly installed between the ends of the inlet pipe and the discharge pipe away from the condensate tank. The spiral pipe is installed in the drawing pretreatment part, and the drawn copper rod can pass through the middle position of the spiral pipe.

[0009] As a further solution of the present invention, the upper mounting cover is fixedly installed at the upper end of the upper protective tank. An upper folding plate is fixedly installed at the upper end of the upper protective tank. The upper folding plate and the upper mounting cover form a sealed space, and an inert gas is filled in this sealed space. The low-temperature nitrogen tank is fixedly installed outside the upper protective tank. An air duct is connected between the low-temperature nitrogen tank and the upper mounting cover. A regulating valve is fixedly installed on the air duct. Temperature sensors are arranged both inside and outside this sealed air and the upper protective tank.

[0010] As a further solution of the present invention, a refrigerator is fixedly installed on the upper surface of the upper folding plate. Inner straight pipes are fixedly installed at both the output end and the input end of the refrigerator. The ends of the inner straight pipes away from the refrigerator are both connected to the condensate tank. A suction pump is fixedly installed on the upper folding plate. There are two groups of the suction pumps and their driving directions are opposite. The suction pumps can drive the gas exchange on both the upper and lower sides of the upper folding plate.

[0011] As a further solution of the present invention, the drawing assembly includes a connecting seat. The upper surface of the connecting seat can be hermetically clamped with the bottom of the upper protective tank. A rotating seat is rotatably installed at the middle position of the upper surface of the connecting seat. A rotating rod is fixedly installed at the bottom of the rotating seat. A rotating motor is fixedly installed inside the connecting seat. The rotating motor can drive the rotating rod to rotate. A cross groove is formed on the upper surface of the rotating seat. Inner threaded rods are rotatably installed on each side of the cross groove. Drawing rods are threadedly connected to the inner threaded rods. Lower bevel gears are fixedly installed at the ends of the inner threaded rods close to the middle position of the cross groove. An upper bevel gear is rotatably installed on the upper surface of the rotating seat. The upper bevel gear can drive a plurality of lower bevel gears to rotate synchronously.

[0012] As a further solution of the present invention, two groups of side threaded rods are arranged in parallel on one side of the upper surface of the rotating seat. A limiting member is threadedly connected to the two groups of side threaded rods. The limiting member is composed of two horizontal rods vertically distributed up and down. After the copper rod is introduced into the upper protective tank, it can pass through the two horizontal rods. A driven gear is fixedly installed at the lower end of the side threaded rod. An intermediate gear is arranged between the driven gears. The intermediate gear meshes with the driven gears. A small gear is fixedly installed on the intermediate gear. A large gear is fixedly installed on the rotating seat. A transmission chain is sleeved outside the large gear and the small gear.

[0013] As a further solution of the present invention, temperature sensors are arranged in both the pre-drawing treatment part and the copper rod heating device. A suction part is arranged at the bottom of the pre-drawing treatment part. The suction part can continuously export the gas in the pre-drawing treatment part.

[0014] As a further solution of the present invention, clamping pliers are fixedly installed on the drawing rods. The clamping pliers can fix one end of the copper wire.

[0015] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0016] 1. In the present invention, the drawn copper rod is cooled by the liquid cooling system in the pre-drawing treatment part before drawing, so as to reduce the temperature difference between the copper rod and the drawing assembly, thereby reducing the possibility of cold shrinkage of the copper rod. The drawn copper rod is gradually reduced to the external temperature value of the upper protective tank through the cooling component. After cooling, it is then exported to the air with the downward movement of the drawing assembly. The drawn copper rod does not directly contact the external air, so as to reduce the temperature difference between the copper rod and the external environment before and after copper rod drawing, reduce the possibility of cold shrinkage of the copper rod, reduce the stress on the copper rod, and increase the quality of the finished copper rod.

[0017] 2. In the present invention, the low-temperature nitrogen in the low-temperature nitrogen tank is gradually incrementally introduced into the closed space formed by the upper mounting cover through the gas conduit. The temperature of the gas in the closed space is reduced by mixing the low-temperature nitrogen with the inert gas in the upper mounting cover. Then, the gas cooled for the first time in the closed space is introduced to the bottom of the upper protective tank to cool the copper rod. After the gas exchanges heat with the copper rod, it returns to the closed space again, and then low-temperature nitrogen is introduced again through the gas conduit to cool the gas in the closed space again. By operating in this way for multiple cycles, by increasing the content of the introduced low-temperature nitrogen each time, the cooling of the copper rod is gradually completed, so that the temperature of the copper rod drops slowly, avoiding large temperature difference changes in the copper rod. Description of the Drawings

[0018] To more clearly illustrate the technical solutions of the embodiments of the present invention, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0019] Figure 1 Schematic diagram of the front-side perspective structure of the present invention;

[0020] Figure 2 Schematic diagram of the side-view perspective structure of the present invention;

[0021] Figure 3 Cross-section of the structure of the present invention Figure 1 ;

[0022] Figure 4 For the present invention Figure 3 Partial schematic diagram of the structure at position A in the present invention;

[0023] Figure 5 For the present invention Figure 3 Partial schematic diagram of the structure at position B in the present invention;

[0024] Figure 6 Cross-section of the structure of the present invention Figure 2 ;

[0025] Figure 7 For the present invention Figure 6 Partial schematic diagram of the structure at position C in the present invention.

[0026] In the drawings, the components represented by the reference numerals are as follows:

[0027] 1. Upper protective tank; 2. Connecting seat; 3. Condensate tank; 4. Outlet pipe; 5. Pre-treatment part for disk drawing; 6. Inlet pipe; 7. Copper rod heating equipment; 8. Upper mounting cover; 9. Air duct; 10. Low-temperature nitrogen tank; 11. Upper folding plate; 12. Side threaded rod; 13. Disk drawing rod; 14. Rotating seat; 15. Rotating rod; 16. Transmission chain; 17. Refrigerator; 18. Inner straight pipe; 19. Suction pump; 20. Limiting part; 21. Intermediate gear; 22. Driven gear; 23. Spiral pipe; 24. Small gear; 25. Large gear; 26. Inner threaded rod; 27. Lower bevel gear; 28. Upper bevel gear. Detailed implementation manners

[0028] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the 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. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present invention.

[0029] Please refer to Figures 1 - 7 , the present invention provides a technical solution: an adaptive temperature-controlled annealing oxygen-free copper rod drawing equipment, including an upper protective tank 1, a refrigerator 17 and a copper rod heating device 7. The upper protective tank 1 is arranged in parallel with the copper rod heating device 7. A pre-drawing processing part 5 is arranged between the upper protective tank 1 and the copper rod heating device 7. The upper end of the upper protective tank 1 is hermetically connected to the pre-drawing processing part 5 and the copper rod heating device 7 in sequence. The copper rod can sequentially pass through the copper rod heating device 7 and the pre-drawing processing part 5 and enter the upper protective tank 1. A liquid cooling system is arranged on the pre-drawing processing part 5. The upper protective tank 1 is provided with:

[0030] a drawing assembly, which is introduced into the upper protective tank 1 from the bottom of the upper protective tank 1, and the drawing assembly can automatically adjust the winding height of the copper wire according to the number of turns of the wound copper wire;

[0031] a temperature reduction assembly, which consists of a low-temperature nitrogen gas tank 10 and an upper mounting cover 8. A connection assembly is arranged between the low-temperature nitrogen gas tank 10 and the upper mounting cover 8. The connection assembly can introduce low-temperature nitrogen gas into the upper mounting cover 8 in a multiple incremental manner according to the temperature difference between the inside and outside of the upper protective tank 1.

[0032] During operation, in the present invention, after the copper rod is heated and raised in temperature in the copper rod heating device 7, it is directly hermetically introduced into the upper protective tank 1 through the pre-drawing processing part 5, ensuring that the copper rod no longer contacts the external air after heating up, reducing the possibility of the copper rod being oxidized. After the copper rod enters the upper protective tank 1 through the pre-drawing processing part 5, it is wound and drawn under the action of the drawing assembly. Before drawing the copper rod, the liquid cooling system in the pre-drawing processing part 5 cools the copper rod, thereby reducing the temperature difference between the copper rod and the drawing assembly, and thus reducing the possibility of the copper rod contracting due to cooling. The drawn copper rod is gradually cooled to the external temperature value of the upper protective tank 1 through the temperature reduction assembly (the low-temperature nitrogen gas in the low-temperature nitrogen gas tank 10 is gradually incrementally introduced into the upper mounting cover 8 through the connection assembly, and the low-temperature nitrogen gas is mixed with the inert gas in the upper mounting cover 8 to cool it, and then the cooling gas is introduced into the bottom of the upper protective tank 1 to cool the copper rod. Through multiple cyclic operations, by increasing the content of the introduced low-temperature nitrogen gas, the cooling of the copper rod is gradually completed, so that the temperature of the copper rod drops slowly, avoiding large temperature difference changes of the copper rod). After cooling, it is then exported to the air as the drawing assembly moves down. The drawn copper rod does not directly contact the external air, thereby reducing the temperature difference between the copper rod and the external environment before and after copper rod drawing, reducing the possibility of the copper rod contracting due to cooling, reducing the stress on the copper rod, and increasing the quality of the finished copper rod.

[0033] As a further solution of the present invention, the liquid cooling system includes a condensate tank 3. There are two groups of condensate tanks 3, which are fixedly installed on the outer side of the upper protective tank 1. A discharge pipe 4 is fixedly installed at the upper end of one group of condensate tanks 3, and an inlet pipe 6 is fixedly installed on the other condensate tank 3. A spiral pipe 23 is fixedly installed between the ends of the inlet pipe 6 and the discharge pipe 4 away from the condensate tank 3. The spiral pipe 23 is installed in the pre-treatment part 5 for wire drawing. The wire-drawing copper rod can pass through the middle position of the spiral pipe 23.

[0034] During operation, after the condensate in the condensate tank 3 of the present invention is cooled by the refrigerator, it enters the spiral pipe 23 under the action of the discharge pipe 4 and the inlet pipe 6, and the copper rod in the pre-treatment part 5 for wire drawing is cooled through the spiral pipe 23, and the copper rod is continuously cooled through the circulation of the condensate.

[0035] As a further solution of the present invention, the upper mounting cover 8 is fixedly installed at the upper end of the upper protective tank 1. An upper folding plate 11 is fixedly installed at the upper end of the upper protective tank 1. The upper folding plate 11 and the upper mounting cover 8 form a sealed space, and an inert gas is filled in this sealed space. A low-temperature nitrogen tank 10 is fixedly installed on the outer side of the upper protective tank 1. An air duct 9 is connected between the low-temperature nitrogen tank 10 and the upper mounting cover 8. A regulating valve is fixedly installed on the air duct 9. Temperature sensors are arranged both inside and outside the sealed air and the upper protective tank 1.

[0036] During operation, the low-temperature nitrogen in the low-temperature nitrogen tank 10 is gradually introduced into the sealed space formed by the upper mounting cover 8 through the air duct 9. The temperature of the gas in the sealed space is reduced by mixing the low-temperature nitrogen with the inert gas in the upper mounting cover 8. Then, the gas cooled for the first time in the sealed space is introduced to the bottom of the upper protective tank 1 to cool the copper rod. After the gas exchanges heat with the copper rod, it returns to the sealed space again, and then low-temperature nitrogen is introduced again through the air duct 9 to cool the gas in the sealed space again. Through such multiple cyclic operations, by increasing the content of the introduced low-temperature nitrogen each time, the cooling of the copper rod is gradually completed, so that the temperature of the copper rod drops slowly, avoiding large temperature difference changes in the copper rod.

[0037] As a further solution of the present invention, a refrigerator 17 is fixedly installed on the upper surface of the upper folding plate 11. Inner straight pipes 18 are fixedly installed at both the output end and the input end of the refrigerator 17. The ends of the inner straight pipes 18 away from the refrigerator 17 are both connected to the condensate tank 3. A suction pump 19 is fixedly installed on the upper folding plate 11. There are two groups of suction pumps 19 and their driving directions are opposite. The suction pump 19 can drive the gas exchange on both sides of the upper folding plate 11.

[0038] During operation, the gas in the sealed space enters the upper protective tank 1 through one suction pump 19 and then returns to the sealed space through the other suction pump 19.

[0039] As a further solution of the present invention, the coiling assembly includes a connecting seat 2. The upper surface of the connecting seat 2 can be hermetically clamped with the bottom of the upper protective tank 1. A rotating seat 14 is rotatably installed at the middle position of the upper surface of the connecting seat 2. A rotating rod 15 is fixedly installed at the bottom of the rotating seat 14. A rotating motor is fixedly installed in the connecting seat 2, and the rotating motor can drive the rotating rod 15 to rotate. A cross groove is formed on the upper surface of the rotating seat 14. Inner threaded rods 26 are rotatably installed on each side of the cross groove. Coiling rods 13 are threadedly connected to the inner threaded rods 26. A lower bevel gear 27 is fixedly installed at one end of the inner threaded rod 26 close to the middle position of the cross groove. An upper bevel gear 28 is rotatably installed on the upper surface of the rotating seat 14, and the upper bevel gear 28 can drive multiple groups of lower bevel gears 27 to rotate synchronously.

[0040] During operation, in the present invention, the introduced copper rod is wound around the surface of the coiling rod 13 by the rotation of the rotating seat 14. The copper rod is continuously coiled by the rotation of the rotating seat 14. During the coiling process, the coiling degree of the copper rod can be adjusted by adjusting the distance between multiple groups of coiling rods 13. The greater the distance between the coiling rods 13, the greater the tension on the copper rod when the rotating seat 14 rotates. In this patent, the upper bevel gear 28 rotates to drive the lower bevel gear 27 to rotate, the lower bevel gear 27 rotates to drive the inner threaded rod 26 to rotate, and the rotation of the inner threaded rod 26 interacts with the coiling rod 13, thereby adjusting the position of the coiling rod 13 on the rotating seat 14.

[0041] As a further solution of the present invention, two groups of side threaded rods 12 are arranged in parallel on one side of the upper surface of the rotating seat 14. A limiting member 20 is threadedly connected to the two groups of side threaded rods 12. The limiting member 20 is composed of two horizontal rods vertically distributed up and down. After the copper rod is introduced into the upper protective tank 1, it can pass through the two horizontal rods. A driven gear 22 is fixedly installed at the lower end of the side threaded rod 12. An intermediate gear 21 is arranged between the driven gears 22. The intermediate gear 21 meshes with the driven gear 22. A small gear 24 is fixedly installed on the intermediate gear 21. A large gear 25 is fixedly installed on the rotating seat 14. A transmission chain 16 is sleeved outside the large gear 25 and the small gear 24.

[0042] During operation, during the coiling process, as the rotating seat 14 rotates, the large gear 25 drives the small gear 24 to rotate under the action of the transmission chain 16. The small gear 24 rotates to drive the intermediate gear 21 to rotate, and the intermediate gear 21 rotates to drive the driven gears 22 on both sides to rotate, thereby driving the side threaded rods 12 to rotate. When the side threaded rods 12 rotate to wind the copper rod on the rotating seat 14, the limiting member 20 is driven to move upward step by step, and the copper rod is driven to move upward by the limiting member 20, ensuring that the copper rod is evenly distributed when wound around the surface of the coiling rod 13, reducing the possibility of the wound copper rod overlapping repeatedly on the surface of the coiling rod 13, and ensuring the uniformity of the coiling tension on the surface of the copper rod.

[0043] As a further solution of the present invention, temperature sensors are provided in both the pre-drawing treatment part 5 and the copper rod heating device 7. A suction part is provided at the bottom of the pre-drawing treatment part 5, and the suction part can continuously discharge the gas in the pre-drawing treatment part 5.

[0044] During operation, the air in the pre-treatment part 5 can be removed through the suction part, avoiding oxidation of the copper rod by the air.

[0045] As a further solution of the present invention, clamping pliers are fixedly installed on the drawing rod 13, and the clamping pliers can fix one end of the copper wire.

[0046] During operation, the clamping pliers fix one end of the copper rod / copper wire at the bottom of the drawing rod 13, ensuring that the copper rod / copper wire can be evenly and tightly wound on the surface of the drawing rod 13.

[0047] The above is only the preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution and inventive concept of the present invention, makes equivalent substitutions or changes, and should be covered by the protection scope of the present invention.

Claims

1. An adaptive temperature-controlled annealing and wire drawing device for oxygen-free copper rods, comprising an upper protective tank (1), a refrigerator (17) and a copper rod heating device (7), characterized in that: The upper protective tank (1) is arranged in parallel with the copper rod heating device (7). A pre-treatment component for coiling and drawing (5) is arranged between the upper protective tank (1) and the copper rod heating device (7). The upper end of the upper protective tank (1) is hermetically connected to the pre-treatment component for coiling and drawing (5) and the copper rod heating device (7) in sequence. The copper rod can enter the upper protective tank (1) through the copper rod heating device (7) and the pre-treatment component for coiling and drawing (5) in sequence. A liquid cooling system is arranged on the pre-treatment component for coiling and drawing (5). The following are arranged on the upper protective tank (1): A coiling and drawing component which is introduced into the upper protective tank (1) from the bottom of the upper protective tank (1), and the coiling and drawing component can automatically adjust the coiling height of the copper wire according to the number of turns of the coiled copper wire; A temperature reduction component which consists of a low-temperature nitrogen gas tank (10) and an upper mounting cover (8). A connection component is arranged between the low-temperature nitrogen gas tank (10) and the upper mounting cover (8), and the connection component can introduce low-temperature nitrogen gas into the upper mounting cover (8) in a multiple incremental manner according to the temperature difference between the inside and outside of the upper protective tank (1).

2. The self-adaptive temperature-controlled annealing oxygen-free copper rod drawing equipment according to claim 1, characterized in that: The liquid cooling system includes a condensate tank (3). Two groups of condensate tanks (3) are arranged and fixedly installed on the outer side of the upper protective tank (1). An outlet pipe (4) is fixedly installed at the upper end of one group of condensate tanks (3). An inlet pipe (6) is fixedly installed on the other condensate tank (3). A spiral pipe (23) is fixedly installed between the ends of the inlet pipe (6) and the outlet pipe (4) far away from the condensate tank (3). The spiral pipe (23) is installed in the pre-treatment component for coiling and drawing (5), and the coiled copper rod can pass through the middle position of the spiral pipe (23).

3. An adaptive temperature-controlled annealing oxygen-free copper rod drawing equipment according to claim 2, characterized in that: The upper mounting cover (8) is fixedly installed at the upper end of the upper protective tank (1). An upper folding plate (11) is fixedly installed at the upper end of the upper protective tank (1). The upper folding plate (11) and the upper mounting cover (8) form a sealed space, and an inert gas is filled in this sealed space. The low-temperature nitrogen gas tank (10) is fixedly installed on the outer side of the upper protective tank (1). An air duct (9) is connected between the low-temperature nitrogen gas tank (10) and the upper mounting cover (8). A regulating valve is fixedly installed on the air duct (9). Temperature sensors are arranged inside and outside this sealed air and the upper protective tank (1).

4. An adaptive temperature-controlled annealing oxygen-free copper rod drawing equipment according to claim 3, characterized in that: A refrigerator (17) is fixedly installed on the upper surface of the upper folding plate (11). Inner straight pipes (18) are fixedly installed at the output end and the input end of the refrigerator (17). The ends of the inner straight pipes (18) far away from the refrigerator (17) are both connected to the condensate tank (3). A suction pump (19) is fixedly installed on the upper folding plate (11). Two groups of suction pumps (19) are arranged and their driving directions are opposite. The suction pump (19) can drive the gas exchange on the upper and lower sides of the upper folding plate (11).

5. An adaptive temperature-controlled annealing oxygen-free copper rod drawing equipment according to claim 4, characterized in that: The drawing and pulling assembly includes a connecting seat (2), the upper surface of the connecting seat (2) can be hermetically clamped with the bottom of the upper protective tank (1), a rotating seat (14) is rotatably installed at the middle position of the upper surface of the connecting seat (2), a rotating rod (15) is fixedly installed at the bottom of the rotating seat (14), a rotating motor is fixedly installed in the connecting seat (2), and the rotating motor can drive the rotating rod (15) to rotate. A cross groove is formed on the upper surface of the rotating seat (14), internal threaded rods (26) are rotatably installed on each side of the cross groove, drawing rods (13) are threadedly connected to the internal threaded rods (26), a lower bevel gear (27) is fixedly installed at one end of the internal threaded rod (26) close to the middle position of the cross groove, an upper bevel gear (28) is rotatably installed on the upper surface of the rotating seat (14), and the upper bevel gear (28) can drive a plurality of lower bevel gears (27) to rotate synchronously.

6. The adaptive temperature-controlled annealing oxygen-free copper rod drawing equipment according to claim 5, characterized in that: Two sets of side threaded rods (12) are arranged in parallel on one side of the upper surface of the rotating seat (14), a limiting member (20) is threadedly connected to the two sets of side threaded rods (12), the limiting member (20) is composed of two horizontal rods vertically distributed up and down, and after the copper rod is introduced into the upper protective tank (1), it can pass through the two horizontal rods. A driven gear (22) is fixedly installed at the lower end of the side threaded rod (12), an intermediate gear (21) is arranged between the driven gears (22), the intermediate gear (21) meshes with the driven gear (22), a small gear (24) is fixedly installed on the intermediate gear (21), a large gear (25) is fixedly installed on the rotating seat (14), and a transmission chain (16) is sleeved outside the large gear (25) and the small gear (24).

7. An adaptive temperature-controlled annealing oxygen-free copper rod drawing equipment according to claim 6, characterized in that: Temperature sensors are arranged in both the drawing pre-treatment part (5) and the copper rod heating device (7), and a suction part is arranged at the bottom of the drawing pre-treatment part (5), and the suction part can continuously export the gas in the drawing pre-treatment part (5).

8. An adaptive temperature-controlled annealing oxygen-free copper rod drawing equipment according to claim 7, characterized in that: Clamping pliers are fixedly installed on the drawing rods (13), and the clamping pliers can fix one end of the copper wire.