Drawing machine with anti-oxidation function for copper conductor

Abstract

The application discloses a wire drawing machine with copper conductor anti-oxidation function and relates to the technical field of wire drawing machines.The wire drawing machine comprises a machine body with multiple partitions, wherein the multiple partitions comprise: a preheating zone for preheating the conductor entering the machine body; an annealing zone located on one side of the preheating zone; and a cooling zone arranged on one side of the lower end of the machine body and connected with the annealing zone; and further comprises an oxidation protection device detachably arranged between the preheating zone and the annealing zone and provided with a wire passing pipe filled with inert gas.The oxidation protection device arranged in the wire drawing machine effectively solves the problem that the copper conductor is oxidized with air due to high temperature of the copper conductor caused by residual heat and long time of staying in air during the wire drawing deceleration stop process; and the automatically extendable wire passing pipe is arranged to automatically extend and adjust the oxidation protection length when the temperature of the preheating zone is increased during the wire drawing deceleration stop process, so as to reduce the problem that the conductor is excessively contacted with air in the preheating zone before entering the annealing zone.

Description

Technical Field

[0001] This invention relates to the field of wire drawing machine technology, and specifically to a wire drawing machine with anti-oxidation function for copper conductors. Background Technology

[0002] When the wire drawing machine decelerates and stops, the residual heat from the high-temperature annealing zone is transferred to the copper conductor, causing the temperature of the conductor in the preheating zone to become excessively high. Simultaneously, due to the deceleration during shutdown, the conductor in the preheating zone slows down before entering the high-temperature annealing zone, resulting in prolonged exposure of the copper conductor to air at a high temperature. Furthermore, the conductor is prone to oxidation in the preheating zone due to the lack of anti-oxidation devices.

[0003] A novel annealing protection device for a copper wire drawing machine, disclosed in prior art publication number CN212223064U, includes an annealing chamber with an annealing wheel inside. Copper wire is threaded through the annealing chamber, and a nitrogen gas protection device for cooling and protecting the copper wire is connected to the left side of the annealing chamber. A wire storage wheel is located to the left of the nitrogen gas protection device. In this design, the hot copper wire to be annealed passes through the annealing wheel into the nitrogen gas protection device for cooling and protecting the copper wire.

[0004] The above solutions can prevent rapid oxidation of copper wire. However, the above-mentioned wire drawing machine annealing protection device is mainly for anti-oxidation protection of hot copper wire after high-temperature annealing. It cannot solve the problem that when the wire drawing machine decelerates and stops, the conductor in the preheating zone slowly enters the high-temperature annealing zone, and the copper conductor is exposed to the air for a longer time at high temperature. Therefore, this application proposes a wire drawing machine that can match the anti-oxidation function of the copper conductor when the wire drawing machine decelerates and stops. Summary of the Invention

[0005] The purpose of this invention is to address the shortcomings of the aforementioned technologies by proposing a wire drawing machine with anti-oxidation function for copper conductors. This aims to solve the problem that during the shutdown process of the aforementioned wire drawing machine, the speed is reduced, causing the conductor in the preheating zone to slow down and enter the high-temperature annealing zone, resulting in the copper conductor being exposed to air for a longer period of time at high temperatures and thus oxidizing.

[0006] This invention provides a wire drawing machine with anti-oxidation function for copper conductors, comprising a machine body having multiple partitions, wherein the multiple partitions include:

[0007] The preheating zone preheats the conductors entering the machine body;

[0008] The annealing zone is located on one side of the preheating zone;

[0009] The cooling zone is located on one side of the lower end of the machine body and is connected to the annealing zone to cool the conductors passing through the annealing zone.

[0010] It also includes an oxidation protection device, which is detachably installed between the preheating zone and the annealing zone. It is equipped with a conduit filled with inert gas. After the conductor is preheated, it moves through the conduit and enters the annealing zone for annealing treatment.

[0011] The oxidation protection device is configured to increase the oxidation protection length of the conductor by extending the conduit axially when the wire drawing machine decelerates and stops.

[0012] Preferably, the oxidation protection device further includes:

[0013] The outer tube is fixedly installed inside the machine body, and the conduit slides inside the outer tube; the outer tube is equipped with air port one and air port two.

[0014] An air pump is connected to air inlet one and air inlet two via pipelines;

[0015] Nitrogen cylinder, connected to the gas pump.

[0016] An annular sealing block is installed at one end of the conduit inside the outer tube, and the annular sealing block slides against the inner wall of the outer tube; a spring is installed inside the outer tube, with one end of the spring connected to the end of the outer tube and the other end of the spring connected to the annular sealing block.

[0017] Preferably, the conduit is a single tube, with one air port at one end and another air port at the other end. A sealing sleeve is fixedly installed at the inner end of the outer tube, through which the conduit and conductor slide. One end of a spring is fixedly connected to the sealing sleeve. Annular sleeves for secondary sealing of the conduit and conductor are provided at both ends of the outer tube.

[0018] Preferably, there are two conduits, which are slidably disposed at both ends of the outer tube. One air port is located in the middle of the outer tube, and the other air port is located at both ends of the outer tube. A sealing sleeve is fixedly provided at the inner end of the outer tube, and the conduit slides through the sealing sleeve. One end of the spring is fixedly connected to the sealing sleeve. Annular sleeves for secondary sealing of the conduit are provided at both ends of the outer tube.

[0019] Preferably, a pressure ring is provided inside the machine body, and elastic seals are provided at both ends of the conduit. The front end of the elastic seal is provided with an outwardly extending opening, and the outer ring of the opening is chamfered so that the extended conduit moves to make the opening contact with the pressure ring, so as to slide and seal the opening on the moving conductor.

[0020] Preferably, the system also includes three-way valve one and three-way valve two. The pipeline includes pipeline one, pipeline two, and pipeline three. Three-way valve one and three-way valve two are respectively connected to the two outlet ends of pipeline one. Pipeline two is connected to three-way valve one and air port one. Pipeline three is connected to three-way valve two and air port two. Exhaust pipes are connected to three-way valve one and three-way valve two.

[0021] Preferably, an air port three is provided on the lower side of the annular sealing block, and the annular sealing block is moved to make air port three communicate with air port two to discharge the gas in the conduit.

[0022] Preferably, the outer tube is connected to the machine body via a fixing frame; the upper part of the fixing frame is provided with a U-shaped clamp for connecting the outer tube.

[0023] Preferably, it also includes a temperature sensor and a controller for controlling the operation of three-way valve one and three-way valve two and the air pump; the temperature sensor is located in the preheating zone and is electrically connected to the controller.

[0024] Compared with existing technologies, it has the following beneficial effects:

[0025] By installing an oxidation protection device inside the wire drawing machine, the problem of copper conductor oxidation during the wire drawing deceleration and shutdown process is effectively solved due to the high temperature of the copper conductor caused by residual heat and the long residence time in the air. Furthermore, by installing an automatically retractable wire guide tube, the wire guide tube automatically extends to adjust its oxidation protection length when the temperature of the preheating zone rises during the wire drawing deceleration and shutdown process, thereby reducing the problem of the conductor being in contact with air for too long in the preheating zone before entering the annealing zone. Attached Figure Description

[0026] To more clearly illustrate the technical solutions in the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only preferred embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0027] Figure 1 This is an internal schematic diagram of the wire drawing machine with copper conductor anti-oxidation function according to the present invention;

[0028] Figure 2 This is a schematic diagram of the interior of the outer tube of the present invention;

[0029] Figure 3 for Figure 2 Enlarged view of point A in the middle;

[0030] Figure 4 This is a schematic diagram of the conduit and spring of the present invention;

[0031] Figure 5 This is a schematic diagram of the oxidation protection device of the present invention;

[0032] Figure 6 This is a schematic diagram of the extended state of the conduit in this invention;

[0033] Figure 7 This is a schematic diagram of another embodiment of the wire drawing machine with copper conductor anti-oxidation function of the present invention;

[0034] Figure 8 This is a schematic diagram of the double-through-line conduit inside the outer tube of the present invention;

[0035] Figure 9 This is a schematic diagram of the double conduit and spring of the present invention;

[0036] Figure 10 This is a schematic diagram of another embodiment of the oxidation protection device of the present invention;

[0037] Figure 11 This is a schematic diagram of the double-through-tube extension state of the present invention;

[0038] Figure 12 This is a schematic diagram of the single-pass conduit and air inlet three of the present invention;

[0039] Figure 13 for Figure 12 Enlarged view of point B in the middle;

[0040] Figure 14 This is a schematic diagram of the dual conduit and air port three of the present invention;

[0041] Figure 15 for Figure 14 Enlarged view of point C in the middle;

[0042] Figure 16 This is a schematic diagram showing the position of the pressure ring in this invention;

[0043] Figure 17 This is a cross-sectional schematic diagram of the pressure ring and elastic seal of the present invention.

[0044] In the diagram, 1 represents the body;

[0045] 2-Preheating zone;

[0046] 3- Annealing zone;

[0047] 4-Cooling area;

[0048] 5-Oxidation protection device; 51-Pass-through conduit; 511-Annular sealing block; 52-Outer pipe; 521-Gas port one; 522-Gas port two; 523-Gas port three; 53-Air pump; 54-Nitrogen tank; 55-Spring; 56-Sealing sleeve; 57-Three-way valve one; 58-Three-way valve two; 59-Pipeline; 591-Pipeline one; 592-Pipeline two; 593-Pipeline three;

[0049] 6-Conductor;

[0050] 7-Pressure ring;

[0051] 8-Resilient seal; 81-Opening; Detailed Implementation

[0052] To better understand the structure, functional features, and advantages of the present invention, preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings:

[0053] Example 1:

[0054] like Figures 1 to 11 As shown, the present invention provides a wire drawing machine with anti-oxidation function for copper conductors, including a machine body 1, having multiple partitions, wherein the multiple partitions include:

[0055] The preheating zone 2 preheats the conductor 6 that enters the body 1. The preheating zone 2 is equipped with multiple guide wheels to guide the conductor 6 entering the preheating zone 2 multiple times, thereby increasing its residence time in the preheating zone 2 and preheating the conductor 6.

[0056] Annealing zone 3 is located on one side of preheating zone 2 to perform high-temperature annealing treatment on the preheated conductor 6;

[0057] Cooling zone 4 is located on one side of the lower end inside the body 1 and is connected to annealing zone 3 to cool the conductor 6 passing through annealing zone 3.

[0058] It also includes an oxidation protection device 5, which is detachably located between the preheating zone 2 and the annealing zone 3. It is equipped with a wire pipe 51 filled with inert gas. After the conductor 6 is preheated, it moves through the wire pipe 51 and enters the annealing zone 3 for annealing treatment.

[0059] The oxidation protection device 5 is configured to extend the conduit 51 axially to increase the oxidation protection length of the conductor 6 when the wire drawing machine decelerates and stops.

[0060] By injecting inert nitrogen gas into the conduit 51, even if the copper conductor 6 becomes too hot due to residual heat, the copper conductor 6 is prevented from directly contacting the air because the conduit 51 is filled with inert nitrogen gas, thus effectively avoiding the oxidation problem of the copper conductor 6.

[0061] The wire drawing speed of the wire drawing machine of the present invention is between 500-1500 m / min, and the specific speed depends on the size and specifications of the copper conductor 6 wire being drawn.

[0062] See Figures 2 to 5 ,as well as Figures 8 to 10 The oxidation protection device 5 also includes:

[0063] The outer tube 52 is fixedly installed inside the body 1, and the cable conduit 51 is slidably installed inside the outer tube 52; the outer tube 52 is provided with air port 1 521 and air port 2 522.

[0064] Air pump 53 is connected to air port 521 and air port 522 via pipe 59;

[0065] Nitrogen tank 54 is connected to air pump 53.

[0066] Since the air pump 53 and nitrogen tank 54 are existing technologies, their internal structures will not be detailed. The nitrogen tank 54 can be used as a gas storage device, and the air pump 53 can also inject gas into the pipeline 51 by connecting to an external nitrogen source. That is, the nitrogen tank 54 of this application can be replaced by an external nitrogen source.

[0067] See Figure 2 An annular sealing block 511 is provided at one end of the conduit 51 located inside the outer tube 52. The annular sealing block 511 slides against the inner wall of the outer tube 52. A spring 55 is provided inside the outer tube 52. One end of the spring 55 is connected to the end of the outer tube 52, and the other end of the spring 55 is connected to the annular sealing block 511.

[0068] See Figure 1 and Figure 7 The outer tube 52 is connected to the machine body 1 through a fixing bracket; the upper part of the fixing bracket is provided with a U-shaped clip for connecting the outer tube 52, so as to detachably fix the outer tube 52 to the machine body 1.

[0069] Furthermore, the oxidation protection device 5 of the present invention can also be set at multiple locations in the preheating zone 2 to provide anti-oxidation protection for the conductor 6 passing through multiple guide wheels.

[0070] Example 2:

[0071] As one embodiment of the present invention, such as Figures 1 to 6 As shown, the conduit 51 is a single tube, with air port 521 located at one end of the outer tube 52 and air port 522 located at the other end of the outer tube 52. A sealing sleeve 56 is fixedly installed at the inner end of the outer tube 52, through which the conduit 51 and the conductor 6 slide. One end of the spring 55 is fixedly connected to the sealing sleeve 56. The sealing sleeve 56 is fixed to the outer tube 52 by external screws. Furthermore, the outer tube 52 is provided with screw holes, through which screws pass and connect to the sealing sleeve 56 inside the outer tube 52 to fix the sealing sleeve 56 to the inner end of the outer tube 52.

[0072] Inert nitrogen gas is injected into the middle of the outer tube 52 through the air port 521. The nitrogen gas then enters the cable conduit 51 through the opening of the annular sealing block 511, pushing the cable conduit 51 to extend the tension spring 55. In this mode, when the cable conduit 51 extends, the spring 55 is in a stretched state. That is, when the air port 521 releases gas, the spring 55 can automatically reset to retract the cable conduit 51 into the outer tube 52.

[0073] Furthermore, nitrogen can be injected into one end of the outer tube 52 through the second air port 522, causing the annular sealing block 511 to move and control the retraction of the through tube 51 into the outer tube 52. The spring 55 is in a compressed state. In this way, when the through tube 51 extends, the spring 55 returns to its initial state. That is, when the second air port 522 is depressurized, the spring 55 automatically resets when the through tube 51 extends.

[0074] The outer tube 52 is provided with annular sleeves at both ends for secondary sealing of the conduit 51 and conductor 6, so as to provide secondary sealing of the conduit 51 and conductor 6 during the movement process.

[0075] Example 3:

[0076] As one embodiment of the present invention, such as Figures 7 to 11 As shown, there are two conduits 51, which are slidably disposed at both ends of the outer tube 52. Air port 1 521 is located in the middle of the outer tube 52, and air port 2 522 is located at both ends of the outer tube 52. A sealing sleeve 56 is fixedly installed at the inner end of the outer tube 52, and the conduit 51 slides through the sealing sleeve 56. One end of the spring 55 is fixedly connected to the sealing sleeve 56. Inert nitrogen gas is injected into the middle of the outer tube 52 through air port 1 521, allowing the nitrogen to enter the conduit 51 through the opening of the annular sealing block 511, and pushing the conduit 51 to move and compress the spring 55, causing it to extend. In this mode, when the conduit 51 extends, the spring 55 is in a compressed state; that is, when air port 1 521 releases air, the spring 55 automatically resets, retracting the conduit 51 into the outer tube 52.

[0077] Furthermore, nitrogen can be injected into both ends of the outer tube 52 through the second air port 522, causing the two annular sealing blocks 511 to move relative to each other to control the retraction of the through tube 51 into the outer tube 52. In this way, when the through tube 51 extends, the spring 55 is in the initial state, that is, when the second air port 522 is inlet, the spring 55 is in the stretched state when the through tube 51 retracts.

[0078] The outer tube 52 is provided with annular sleeves at both ends for secondary sealing of the conduit 51, so as to slide seal the conduit 51 and the conductor 6 to reduce or prevent nitrogen leakage.

[0079] Further, see Figure 16 and Figure 17The machine body 1 is equipped with a pressure ring 7, and elastic seals 8 are provided at both ends of the through-tube 51. The front end of the elastic seal 8 is provided with an outwardly extending opening 81. The outer ring of the opening 81 is chamfered so that the extended through-tube 51 moves to make the opening 81 contact the pressure ring 7, and then folds inward to abut against the moving conductor 6 to seal the through-tube 51, so that the nitrogen gas entering it can prevent the conductor 6 from oxidizing. In the initial state of this method, when the spring 55 is in the outer tube 52, i.e., when the second air port 522 is venting, the first air port 521 is venting. Under the action of the spring 55, the through-tube 51 extends to both ends of the outer tube 52. During this process, the first air port 521 discharges the mixed gas in the through-tube 51 until the opening 81 contacts the pressure ring 7 and seals the through-tube 51. At this time, the air entering the first air port 521 can press the opening 81 tightly against the pressure ring 7 to seal the nitrogen gas in the through-tube 51. This method effectively avoids the problem of the wire guide tube 51 being in constant close contact with the moving conductor 6 during normal operation of the wire drawing machine. This prevents the moving conductor 6 from continuously contacting the elastic seal 8 at the end of the wire guide tube 51, effectively reducing wear on the elastic seal 8 and addressing sealing deficiencies during use. The wire guide tube 51 is moved by the spring 55 combined with the air inlet 521, causing it to abut against the pressure ring 7, thus sealing the wire guide tube 51. Continuous air injection through the air inlet 521 allows the air inside the extending wire guide tube 51 to be expelled.

[0080] Furthermore, the opening 81 of the elastic seal 8 is a multi-seal block structure or an annular structure, and its outer ring is chamfered so that the chamfer moves into the pressure ring 7 to shrink and press against the moving conductor 6.

[0081] Example 4:

[0082] As one embodiment of the present invention, such as Figure 5 and Figure 10 As shown, it also includes three-way valve 57 and three-way valve 58. Pipeline 59 includes pipeline 591, pipeline 592, and pipeline 593. Three-way valve 57 and three-way valve 58 are respectively connected to the two outlet ends of pipeline 591. Pipeline 592 is connected to three-way valve 57 and air port 521. Pipeline 593 is connected to three-way valve 58 and air port 522. Three-way valve 57 and three-way valve 58 can respectively control the connection between air pump 53 and air port 521 and air port 522. When the connection between air port 522 of three-way valve 58 and pipeline 591 is closed, three-way valve 57 is opened to allow the connection between air port 521 and pipeline 591. Opening the connection between air pump 53 or nitrogen tank 54 allows nitrogen to enter the conduit 51 inside the outer pipe 52 through pipeline 292.

[0083] When the air port 522 of the three-way valve 58 is opened to connect with the pipeline 591, and the three-way valve 57 is closed to connect the air port 521 to the pipeline 591, opening the passage of the air pump 53 or the nitrogen tank 54 can allow nitrogen to enter the conduit 51 inside the outer pipe 52 through the pipeline 593.

[0084] See Figure 5 and Figure 10 Three-way valve 57 and three-way valve 58 are connected to exhaust pipes. These exhaust pipes discharge nitrogen gas from gas ports 521 and 522 via three-way valves 57 and 58, thereby improving the purity of the nitrogen gas entering the conduit 51 and outer pipe 52 through gas ports 521 and 522, and facilitating the replacement of nitrogen gas after a period of use. In this embodiment, the simultaneous operation of gas port 521 for injection and gas port 522 for exhaust can be achieved through the cooperation of three-way valves 57 and 58, or simultaneously through gas port 522 for injection and gas port 521 for exhaust.

[0085] See Figures 12 to 15 An annular sealing block 511 has a third air port 523 on its lower side. The annular sealing block 511 moves until the third air port 523 connects with the second air port 522, thereby venting gas from the conduit 51. An air pump 53 injects nitrogen into the conduit 51 and continuously injects nitrogen to push the annular sealing block 511 to connect the third air port 523 with the second air port 522, thus venting gas from the conduit 51 and improving the purity of the nitrogen in the conduit 51. Furthermore, multiple third air ports 523 are arranged circumferentially on the annular sealing block 511 and connected to the conduit 51 to prevent misalignment during sliding, which could cause the third air port 523 to misalign with the second air port 522.

[0086] Specifically, it also includes a temperature sensor and a controller for controlling the operation of three-way valve 57, three-way valve 58, and air pump 53; the temperature sensor is located in the preheating zone 2 and is electrically connected to the controller. The temperature sensor is used to sense the temperature of the preheating zone 2 or the copper conductor 6 within the preheating zone 2, thereby triggering the controller to operate three-way valve 57, three-way valve 58, and air pump 53 to control the extension movement of the conduit 51.

[0087] The working principle of this invention: The copper conductor 6 enters the machine body 1 through the wire wheel and guide wheel, and is preheated during its movement in the preheating zone 2 by multiple guide wheels. When the wire drawing decelerates and stops, if the temperature sensor detects that the temperature in the preheating zone 2 is too high, the controller controls the three-way valve 1 57 and the three-way valve 2 58 and the air pump 53 to work, so that the wire tube 51 extends out from the outer tube 52 to increase its oxidation protection length, so as to adapt to the slow movement of the conductor 6. This reduces the time that the high-temperature copper conductor 6 is in direct contact with air by injecting inert nitrogen gas into the wire tube 51.

[0088] When the wire drawing deceleration machine is started, the temperature sensor detects that the temperature of the preheating zone 2 has decreased. The controller then controls the three-way valve 1 57, the three-way valve 2 58, and the air pump 53 to work, causing the conduit 51 to retract into the outer tube 52, so that the conductor 6 can be preheated in the preheating zone 2.

[0089] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention in any way. Any person skilled in the art can make many possible variations and modifications to the technical solutions of the present invention, or modify them into equivalent embodiments, without departing from the scope of the present invention. Therefore, any modifications, equivalent changes, and alterations made to the above embodiments based on the technology of the present invention without departing from the scope of the present invention are within the protection scope of the present invention.

Claims

1. A wire drawing machine with copper conductor anti-oxidation function, characterized in that The machine body (1) has multiple partitions, wherein the multiple partitions include: a preheating zone (2) for preheating a conductor (6) entering the machine body (1); an annealing zone (3) located on one side of the preheating zone (2); a cooling zone (4) located on one side of the lower end of the machine body (1) and connected to the annealing zone (3) to cool the conductor (6) passing through the annealing zone (3); an oxidation protection device (5) detachably arranged between the preheating zone (2) and the annealing zone (3), and provided with a wire passing tube (51) filled with inert gas, wherein the conductor (6) after preheating moves through the wire passing tube (51) and enters the annealing zone (3) for annealing treatment; the oxidation protection device (5) is configured to, when the wire drawing machine is decelerated and stopped, the wire passing tube (51) is elongated in the axial direction to increase the oxidation protection length of the conductor (6); the oxidation protection device (5) further includes: an outer tube (52) fixedly arranged in the machine body (1), and the wire passing tube (51) is slidably arranged in the outer tube (52); the outer tube (52) is provided with a gas port one (521) and a gas port two (522); a gas pump (53) connected to the gas port one (521) and the gas port two (522) through a pipeline (59); a nitrogen tank (54) connected to the gas pump (53); one end of the wire passing tube (51) located in the outer tube (52) is provided with an annular sealing block (511), and the annular sealing block (511) is in sliding abutment with the inner wall of the outer tube (52); a spring (55) is arranged in the outer tube (52), one end of the spring (55) is connected to the end of the outer tube (52), and the other end of the spring (55) is connected to the annular sealing block (511).

2. The wire drawing machine having a copper conductor oxidation preventing function according to claim 1, characterized by, The wire passing tube (51) is one, the gas port one (521) is arranged at one end of the outer tube (52), and the gas port two (522) is arranged at the other end of the outer tube (52); a sealing sleeve (56) is fixedly arranged at the inner end of the outer tube (52), and the wire passing tube (51) and the conductor (6) slide through the sealing sleeve (56); one end of the spring (55) is fixedly connected to the sealing sleeve (56).

3. The wire drawing machine having a copper conductor oxidation preventing function according to claim 1, characterized by, The wire passing tube (51) is two, the two wire passing tubes (51) are slidably arranged at the two ends of the outer tube (52), the gas port one (521) is arranged at the middle of the outer tube (52), and the gas port two (522) is arranged at the two ends of the outer tube (52); a sealing sleeve (56) is fixedly arranged at the inner end of the outer tube (52), and the wire passing tube (51) slides through the sealing sleeve (56); one end of the spring (55) is fixedly connected to the sealing sleeve (56).

4. The wire drawing machine having a copper conductor oxidation preventing function according to claim 2 or 3, characterized by Also include three-way valve one (57) and three-way valve two (58), the pipeline (59) includes pipeline one (591), pipeline two (592) and pipeline three (593), the three-way valve one (57) and the three-way valve two (58) are connected respectively in two ends of the pipeline one (591) gas outlet, the pipeline two (592) is connected on the three-way valve one (57) and the gas port one (521), the pipeline three (593) is connected on the three-way valve two (58) and the gas port two (522), the three-way valve one (57) and the three-way valve two (58) are connected with exhaust pipe.

5. The wire drawing machine having a copper conductor oxidation preventing function according to claim 3, characterized by The body (1) is provided with a compression ring (7), the wire tube (51) is provided with an elastic sealing element (8) at both ends, the front end of the elastic sealing element (8) is provided with an outwardly extending opening (81), the outer circle of the opening (81) is chamfered, the wire tube (51) is moved to make the opening (81) contact with the compression ring (7) by moving, so as to slide seal the opening (81) on the conductor (6).

6. The wire drawing machine having a copper conductor oxidation preventing function according to claim 4, wherein The lower side of the annular sealing block (511) is provided with a gas port three (523), the annular sealing block (511) is moved to make the gas port three (523) communicate with the gas port two (522), so as to discharge the gas in the wire tube (51).

7. The wire drawing machine having a copper conductor oxidation preventing function according to claim 1, wherein The outer tube (52) is connected in the body (1) through a fixing frame; the fixing frame is provided with a U-shaped clamp for connecting the outer tube (52) at the upper part.

8. The wire drawing machine having a copper conductor oxidation preventing function according to claim 4, wherein Also include temperature sensor, and the controller for controlling the three-way valve one (57) and the three-way valve two (58) and the gas pump (53) work; the temperature sensor is set in the preheating zone (2), the temperature sensor is electrically connected with the controller.

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