Horizontal hot wire drawing machine

Abstract

The invention relates to the field of hot wire drawing devices, and discloses a horizontal hot wire drawing machine which comprises a workbench, a heating assembly, a lubricating assembly, a wire drawing die and a cooling assembly, the cooling assembly comprises an indirect cooling part and a direct cooling part, the indirect cooling part comprises a first cooling pipe, a cooling channel and a driving pump, and the direct cooling part comprises a second cooling pipe and a spray head. A driving structure controlled by flowing or static of a first cooling medium is arranged between the first cooling pipe and the lubricating assembly, a waste heat utilization structure is arranged on the lubricating assembly, the horizontal hot wire drawing machine enables the first cooling medium to indirectly exchange heat with a wire rod, the heated first cooling medium continues to flow, and the waste heat utilization structure is used for heat exchange between the first cooling medium and the wire rod. The driving structure drives the nozzle to spray a second cooling medium to directly contact with the wire rod for heat exchange, and meanwhile, the second cooling medium after heat exchange is taken away from the second cooling pipe to be converged with the first cooling medium, and flows to the lubricating assembly together to preheat the lubricating liquid through the waste heat utilization structure, so that the temperature rise amplitude of the heating assembly is reduced; and the energy consumption and the cost are reduced through graded cooling.

Description

Technical Field

[0001] This invention relates to the field of hot wire drawing equipment, and more particularly to a horizontal hot wire drawing machine. Background Technology

[0002] A hot wire drawing machine is a mechanical device used in industrial production to heat and stretch wires to achieve a target diameter.

[0003] Chinese Patent Application No. 202120175738.7 discloses an adjustable wire drawing diameter device for a fire-resistant cable drawing machine, including a support platform and a control component, a wire feeding component, a wire conductor component, a lubrication component, a wire drawing die, a cooling mechanism, a drying component, and a take-up component arranged sequentially on the support platform along the wire moving direction. The lubrication component includes a lubrication box and lubricating oil disposed in the lubrication box, and the wire passes through the lubrication box and is lubricated by the lubricating oil; the cooling mechanism includes a cooling box, a heat dissipation copper pipe, a water pump, and a water tank, and the wire after drawing is immersed in the cooling liquid for cooling.

[0004] However, lubricating the wire before heating can cause the lubricant to burn, oxidize, or carbonize prematurely during heating, reducing or eliminating its lubricating effect on the wire and drawing die. Therefore, in actual operation, the standard process is to heat the wire first and then lubricate it. A common method is to spray hot drawing lubricant (mainly graphite emulsion) onto the contact interface between the wire and the wire drawing die inlet. The water vaporizes, leaving dry, high-purity solid lubricant particles (graphite) to reduce friction and wear. However, heating before lubrication lowers the wire temperature during lubrication. To ensure that the final drawing temperature reaches the target temperature, the heating components need to be further heated, further increasing energy consumption and costs. In addition, directly immersing the wire in coolant for cooling is a single cooling method with an excessively fast cooling rate, which cannot meet the cooling requirements of wires with different performance characteristics. Furthermore, the heat from the coolant after heat exchange is directly dissipated into the air, resulting in heat waste. Summary of the Invention

[0005] This invention addresses the shortcomings of existing technologies, such as the single cooling method failing to meet the cooling needs of different wires and wasting heat, as well as the need for heating components to further increase the temperature after heating and lubrication, leading to increased energy consumption and costs. It provides a horizontal hot wire drawing machine with staged cooling to meet different cooling needs, while utilizing waste heat to preheat the lubricant to reduce costs and energy consumption.

[0006] To solve the above-mentioned technical problems, the present invention provides the following technical solution: A horizontal hot wire drawing machine includes a worktable and a heating assembly, a lubrication assembly, a wire drawing die, and a cooling assembly arranged sequentially along the wire's movement direction on the worktable. The cooling assembly includes an indirect cooling section and a direct cooling section arranged sequentially along the wire's movement direction to control the wire's cooling rate. The indirect cooling section includes a first cooling pipe sleeved outside the wire, a cooling channel formed hollow inside the first cooling pipe for a first cooling medium to enter and exit, and a drive pump to drive the flow of the first cooling medium. The direct cooling section includes a second cooling pipe sleeved outside the wire and with its two ends sealed and slidingly fitted with the wire, and a nozzle disposed inside the second cooling pipe to spray a second cooling medium toward the wire. A drive nozzle is provided between the first cooling pipe and the lubrication assembly to spray the second cooling medium. The drive structure, which uses two cooling media, carries the second cooling medium after heat exchange away from the second cooling pipe and converges with the first cooling medium after heat exchange. The opening and closing of the drive structure is controlled by the flow or stillness of the first cooling medium. The lubrication assembly is equipped with a waste heat utilization structure that uses the heat generated by the heat exchange between the first and second cooling media and the wire to preheat the lubricant. The waste heat utilization structure includes a heat exchange pipe for the first and second cooling media to enter, exit, and flow, and a heat exchange assembly on the heat exchange pipe to improve the heat exchange efficiency. The drive structure includes a connecting pipe with its two ends sealed and connected to the outlet of the first cooling pipe and the inlet of the heat exchange pipe, a Venturi tube section on the connecting pipe, and a connecting pipe with its two ends sealed and connected to the bottom of the second cooling pipe and the Venturi tube section, respectively.

[0007] Using the above scheme, when the drive pump forces the first cooling medium to flow through the cooling channel and through the first cooling pipe, it indirectly cools and exchanges heat with the wire. The heated first cooling medium continues to flow after exiting the first cooling pipe. As the first cooling medium flows through the Venturi tube section, it generates negative pressure, drawing air from the second cooling pipe and creating negative pressure inside as well. This drives the second cooling medium to be sprayed through the nozzle onto the wire inside the second cooling pipe, providing pressurization and direct contact cooling and heat exchange. The heat-exchanged second cooling medium is then drawn into the connecting pipe through the connecting pipe, merging with the first cooling medium before flowing into the heat exchange tube. There, it exchanges heat with the lubricating fluid. Simultaneously, the heat exchange assembly further improves heat exchange efficiency, reusing the waste heat generated from cooling the wire. The lubricating fluid temperature can be increased without an additional heating source, thus reducing the temperature required for the heating assembly, lowering energy consumption, and reducing costs. Furthermore, the spraying of the liquid from the nozzle and the extraction of the second cooling medium from the second cooling pipe do not require an additional drive source. The flow or stillness of the first cooling medium is sufficient to drive the direct cooling unit to operate synchronously or stop, further reducing costs and energy consumption. Meanwhile, depending on the cooling requirements of wires with different performance characteristics, different types and temperatures of first and second cooling media can be selected to control the cooling rate of the wires. Ultimately, staged cooling is achieved to meet different cooling requirements while utilizing residual heat to preheat the lubricant to reduce costs and energy consumption.

[0008] Preferably, the lubrication assembly includes a reservoir for storing lubricating fluid, a spray pipe with one end inserted below the liquid surface of the reservoir and the other end facing the wire drawing die inlet, and a pump body that drives the lubricating fluid to be sprayed through the spray pipe onto the wire and the wire drawing die. The heat exchange pipe and heat exchange assembly are disposed inside the reservoir and both ends of the heat exchange pipe are sealed and extend out of the reservoir.

[0009] Using the above method, the lubricant is stored in a storage tank and sprayed out through a spray pipe to the contact interface between the wire and the wire drawing die under the drive of the pump, so as to lubricate the wire and the wire drawing die and reduce friction and wear.

[0010] Preferably, the heat exchange assembly includes a heat exchange shaft with one end located inside the heat exchange tube and the other end sealed and extending outside the heat exchange tube. A heat exchange agitation structure is provided between the heat exchange shaft and the heat exchange tube to accelerate heat exchange while uniformly mixing the lubricating fluid. The opening and closing of the heat exchange agitation structure is controlled by the flow or stillness of the first cooling medium and the second cooling medium inside the heat exchange tube.

[0011] Using the above scheme, the heat exchange shaft conducts heat to heat the lubricating fluid nearby. At this time, the flow of the first and second cooling media in the heat exchange tube drives the heat exchange stirring structure to stir the lubricating fluid, preventing heat from accumulating near the heat exchange shaft. This makes the heating of the lubricating fluid more uniform, and at the same time, it can stir the lubricating fluid to make it more evenly mixed.

[0012] Preferably, the heat exchange stirring structure includes heat exchange stirring blades protruding outward on the outer ring wall of the heat exchange shaft outside the heat exchange tube, and heat exchange transmission blades protruding outward on the outer ring wall of the heat exchange shaft inside the heat exchange tube, wherein the heat exchange shaft and the heat exchange tube are in a sealed rotatable connection.

[0013] With the above scheme, the first and second cooling media flow unidirectionally in the heat exchange tube, which drives the heat exchange drive blades to rotate axially around the heat exchange shaft, thereby driving the heat exchange shaft and heat exchange stirring blades to rotate, thus agitating the lubricating fluid. At the same time, the heat exchange drive blades and heat exchange stirring blades can also conduct heat to heat the lubricating fluid.

[0014] Preferably, the first cooling medium and / or the second cooling medium is a gas or a liquid.

[0015] Using the above scheme, and depending on different cooling requirements, different types and temperatures of the first and second cooling media can be selected to control the cooling rate of the wire. At the same temperature and flow rate, the cooling rate of the wire by gas is slower than that of the wire by liquid.

[0016] Preferably, the cooling channel is arranged in a spiral shape along the direction of wire movement.

[0017] By adopting the above scheme, the spiral design allows the first cooling medium to stay for a longer time, thus achieving sufficient heat exchange.

[0018] Preferably, a temperature control component is provided between the heating component and the lubrication component. The temperature control component includes a first temperature probe for detecting the temperature of the wire coming out of the self-heating component, a second temperature probe for detecting the temperature of the lubricant sprayed from the self-spraying pipe, and a control module that is electrically connected to the first temperature probe, the second temperature probe, and the heating component.

[0019] Using the above scheme, the temperature of the wire coming out of the self-heating component and the temperature of the lubricant sprayed from the self-spraying pipe are monitored in real time, and the heating component is adjusted so that the temperature of the wire coming out of the self-heating component minus the temperature of the lubricant sprayed from the self-spraying pipe is greater than the target temperature required for wire drawing.

[0020] Preferably, a control component is provided between the first temperature probe and the worktable to control the first temperature probe to reciprocate along the direction of vertical wire movement to ensure that the wire temperature is detected.

[0021] Using the above solution, the first temperature probe cannot accurately measure the temperature of the wires due to their different diameters and positional fluctuations during the wire drawing process. Therefore, a control component is set up to control the first temperature probe to move back and forth along the direction perpendicular to the wire movement to ensure that the wire temperature is detected.

[0022] This invention, by employing the above technical solutions, has significant technical effects: When the driving pump drives the first cooling medium to flow through the cooling channel and through the first cooling pipe, it indirectly cools and exchanges heat with the wire. The heated first cooling medium continues to flow in the connecting pipe. When it passes through the Venturi tube section, air is drawn from the second cooling pipe through the connecting pipe to create a negative pressure, thereby driving the second cooling medium to be sprayed out through the nozzle onto the wire in the second cooling pipe for pressurization and cooling. After heat exchange, the second cooling medium is drawn into the connecting pipe through the connecting pipe, merges with the first cooling medium, and flows into the heat exchange tube. Finally, it passes through the heat exchange tube and the rotating heat exchange... The shaft, heat exchange stirring blades, and heat exchange drive blades uniformly preheat the lubricant, thereby reducing the temperature rise of the heating components, reducing energy consumption, and reducing costs. In addition, the spraying of the nozzle and the extraction of the second cooling medium from the second cooling pipe do not require an additional drive source. The flow or stillness of the first cooling medium can drive the direct cooling unit to operate synchronously or stop, further reducing costs and energy consumption. At the same time, according to the cooling requirements of wires with different performance, different types and temperatures of first and second cooling media can be selected to control the cooling rate of the wires, ultimately achieving staged cooling to meet different cooling requirements while reducing costs and energy consumption. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of a horizontal hot wire drawing machine in one embodiment; Figure 2 yes Figure 1 Enlarged view of point A in the image; Figure 3 yes Figure 1 Enlarged view of point B in the image; Figure 4 This is a top view of a horizontal hot wire drawing machine in one embodiment; Figure 5 yes Figure 4 Sectional view at point C; Figure 6 yes Figure 5 Enlarged view of point E in the image; Figure 7 yes Figure 6 Enlarged view of point F in the image; Figure 8 yes Figure 4 Sectional view at DD in the middle; Figure 9 yes Figure 8 Enlarged view of point G in the image; Figure 10 This is an exploded view of a horizontal hot wire drawing machine in one embodiment; Figure 11 yes Figure 10 Enlarged view of point H in the image; Figure 12 yes Figure 11 Enlarged view of point I in the image; Figure 13 yes Figure 11 Enlarged view of point J in the image.

[0024] The parts referred to by the numbers in the above attached diagrams are as follows: 1. Wire; 2. Workbench; 3. First cooling pipe; 4. Cooling channel; 5. First feed pipe; 6. Connecting pipe; 7. Venturi tube section; 8. Second cooling pipe; 9. Nozzle; 10. Second feed pipe; 11. Connecting pipe; 12. Liquid storage tank; 13. Spray pipe; 14. Heat exchange pipe; 15. Heat exchange shaft; 16. Heat exchange stirring blade; 17. Heat exchange transmission blade; 18. Discharge pipe; 19. Liquid replenishment pipe; 20. Drain pipe; 21. First temperature probe; 22. Lead screw; 23. Sliding block; 24. Wire feeding assembly; 25. Wire conductor assembly; 26. Heating assembly; 27. Wire drawing die; 28. Wire diameter detection device; 29. ​​Wire winding assembly; 30. Mounting block; 31. Guide rod. Detailed Implementation

[0025] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments.

[0026] A horizontal hot wire drawing machine, as described in the following figure Figures 1 to 13The system includes a wire feeding assembly 24, a wire guide assembly 25, a heating assembly 26, a lubrication assembly, a wire drawing die 27, a cooling assembly, and a winding assembly 29, arranged sequentially along the moving direction of the wire 1. It also includes a worktable 2, on which the wire guide assembly 25, heating assembly 26, lubrication assembly, wire drawing die 27, and cooling assembly are mounted. Wire diameter detection devices 28 are respectively provided between the wire feeding assembly 24 and the wire guide assembly 25, and between the cooling assembly and the winding assembly 29, to detect the diameter of the wire 1 passing through them, ensuring that the wire 1 is drawn to the target diameter and guaranteeing product quality. In this embodiment, the wire diameter detection device 28 can be a laser diameter gauge. The specific structure and working principle of the wire feeding assembly 24, the wire guide assembly 25, the heating assembly 26, the wire drawing die 27, the wire diameter detection device 28, and the winding assembly 29 can be found in the prior art documents and explanations of existing horizontal hot wire drawing machines. In this embodiment, no modifications to the above structure are involved; they are simply illustrated in the figures and will not be elaborated further here.

[0027] The cooling assembly includes an indirect cooling section and a direct cooling section arranged sequentially along the moving direction of the wire 1, that is, the indirect cooling section is close to the wire drawing die 27 and the direct cooling section is close to the winding assembly 29.

[0028] The indirect cooling section includes a first cooling pipe 3 fixedly mounted on the workbench 2. The first cooling pipe 3 is concentrically arranged with the wire drawing die 27 and allows the drawn wire 1 to pass through. A cooling channel 4 is formed in the hollow interior of the first cooling pipe 3. The cooling channel 4 is spirally arranged along the direction of wire 1 movement. The end of the cooling channel 4 near the wire drawing die 27 has an outlet for the first cooling medium to be discharged from the cooling channel 4, and the end of the cooling channel 4 away from the wire drawing die 27 has an inlet for the first cooling medium to enter the cooling channel 4, so that the first cooling medium flows in the opposite direction to the direction of wire 1 movement. The first cooling pipe 3 is provided with a first feed pipe 5, one end of which is sealed and connected to the inlet of the cooling channel 4, and a connecting pipe 6, one end of which is sealed and connected to the outlet of the cooling channel 4. A drive pump is installed at the end of the first feed pipe 5 away from the cooling channel 4 to drive the first cooling medium into the cooling channel 4 and allow it to flow rapidly in the subsequent pipeline. The first cooling medium can be gas or liquid depending on the required cooling rate of the wire 1. The drive pump can be an air pump or a liquid pump. Both air pumps and liquid pumps are existing technologies and are not shown in the figure, so they will not be described in detail here. In this embodiment, the first cooling medium is water.

[0029] The direct cooling section includes a second cooling pipe 8 fixedly mounted on the workbench 2. The second cooling pipe 8 is concentrically arranged with the first cooling pipe 3 and allows the drawn wire 1 to pass through. Sealing rings are provided at both ends of the second cooling pipe 8 to allow the wire 1 to slide and seal against both ends of the second cooling pipe 8, forming a sealed cavity inside the second cooling pipe 8. A nozzle 9 is positioned above the wire 1 inside the second cooling pipe 8. A second feed pipe 10 is connected to the nozzle 9. The end of the second feed pipe 10 away from the nozzle 9 exits the second cooling pipe 8 in a sealed manner. A second cooling medium, which can be a gas or liquid, is sprayed from the nozzle 9 onto the wire 1 after passing through the second feed pipe 10. In this embodiment, it is water. A connecting pipe 11, with one end sealed to the interior of the second cooling pipe 8, is provided at the bottom of the second cooling pipe 8.

[0030] A venturi tube section 7 exists on the connecting pipe 6. The venturi tube section 7 includes a contraction section with a shrinking cross section, a throat, and a diffusion section with an expanding cross section arranged sequentially along the direction of movement of the first cooling medium. The end of the connecting pipe 11 away from the second cooling pipe 8 is sealed and connected to the throat of the venturi tube section 7.

[0031] The lubrication assembly includes a reservoir 12 for storing lubricating fluid, mounted on a workbench 2. A spray pipe 13 is fixed on the workbench 2, with one end inserted below the lubricating fluid level in the reservoir 12 and the other end facing the wire inlet of the drawing die 27. A pump body is also provided on the workbench 2 to drive the lubricating fluid in the reservoir 12 through the spray pipe 13 to the contact interface between the wire 1 and the wire inlet of the drawing die 27. A liquid pump can be used; liquid pumps are existing technology and are not shown in the figure, so they will not be described in detail here. The sprayed lubricating fluid eventually collects on the workbench 2 and is discharged through a drain pipe 20 mounted on the workbench 2. To ensure efficient utilization of the lubricating fluid's residual heat, the reservoir 12 is generally small, holding a relatively small amount of lubricating fluid. Therefore, a replenishment pipe 19 is provided on the liquid storage tank 12, with one end communicating with the inside of the liquid storage tank 12 for replenishing lubricating fluid into the liquid storage tank 12. A drive component is provided on the replenishment pipe 19 to continuously replenish the lubricating fluid into the liquid storage tank 12 for preheating. The drive component can be a liquid pump, which is existing technology and is not shown in the figure, so it will not be described in detail here.

[0032] A heat exchange tube 14 is installed inside the liquid storage tank 12. In this embodiment, the heat exchange tube 14 has a U-shaped cross-section. Both ends of the heat exchange tube 14 are sealed and extend out of the liquid storage tank 12. One end of the heat exchange tube 14 is sealed and connected to the end of the connecting pipe 6 away from the first cooling pipe 3, allowing the first cooling medium and the second cooling medium to enter. The other end of the heat exchange tube 14 is sealed and connected to a discharge pipe 18. The other end of the discharge pipe 18 is provided with a receiving box for receiving the first cooling medium and the second cooling medium discharged from the heat exchange tube 14. The receiving box is prior art and is not shown in the figure, so it will not be described in detail here.

[0033] A heat exchange assembly to improve heat exchange efficiency is provided on the heat exchange tube 14. The heat exchange assembly includes a heat exchange shaft 15, one end of which is located inside the heat exchange tube 14 and the other end of which is sealed and protrudes outside the heat exchange tube 14. The heat exchange shaft 15 is rotatably connected to the heat exchange tube 14 in a sealed manner. A heat exchange stirring blade 16 protrudes outward from the outer ring wall of the heat exchange shaft 15 outside the heat exchange tube 14, and a heat exchange drive blade 17 protrudes outward from the outer ring wall of the heat exchange shaft 15 inside the heat exchange tube 14. The heat exchange tube 14, heat exchange shaft 15, heat exchange stirring blade 16, and heat exchange drive blade 17 are all made of a metal material with good thermal conductivity; in this embodiment, copper is used. The connecting pipe 6 and the connecting pipe 11 are made of a material with poor thermal conductivity to reduce heat waste; in this embodiment, plastic is used.

[0034] A temperature control component is installed on the workbench 2. This component includes a first temperature probe 21 that detects the temperature of the wire 1 exiting the self-heating component 26, and a second temperature probe that detects the temperature of the lubricant sprayed from the self-spraying pipe 13. A control module, electrically connected to the first temperature probe 21, the second temperature probe, and the heating component 26, is also installed within the workbench 2. In this embodiment, the heating component 26 is a resistance heating wire, which is existing technology and will not be described in detail here. The value obtained by subtracting the second temperature detected by the second temperature probe from the first temperature probe 21 must be greater than the target temperature required for wire drawing. The control module, the first temperature probe 21, the second temperature probe, the resistance heating wire, and the connections and program control methods between these structures are all existing technologies. Some structures are not shown in the figure and will not be described in detail here. The control module can also be used to control the operation of the entire horizontal hot wire drawing machine. The specific control methods and logic programming are existing technologies and will not be described in detail here.

[0035] A control component is provided between the first temperature probe 21 and the workbench 2 to control its reciprocating movement along the vertical direction of the wire 1. In this embodiment, the control component drives the first temperature probe 21 to move vertically up and down along the vertical direction of the wire 1. The control component includes a mounting block 30 on the workbench 2, a sliding block 23 vertically guided and lifted on the mounting block 30, and a lead screw 22 vertically rotatably mounted and threadedly connected to the sliding block 23. A guide rod 31 is provided between the sliding block 23 and the mounting block 30 to guide the sliding block 23 to move up and down. The rotation of the lead screw 22 drives the sliding block 23 to move vertically up and down. The first temperature probe 21 is fixedly mounted on the sliding block 23. The rotation of the lead screw 22 is controlled by a motor, and the motor and the control module are electrically connected. The motor, the connection between the motor and the control module, and the control method are all existing technologies and are not shown in the figure, so they will not be described in detail here. Similarly, if it is necessary to drive the first temperature probe 21 to extend and retract horizontally along the direction of movement of the vertical wire 1, the control mounting block 30 shall extend and retract horizontally along the direction of movement of the vertical wire 1. The specific control structure can be referred to the control components.

[0036] When the drive pump drives the first cooling medium to flow through the cooling channel 4 and through the first cooling pipe 3, it indirectly cools and exchanges heat with the wire 1. The heated first cooling medium continues to flow in the connecting pipe 6. When it passes through the Venturi tube section 7, the air in the second cooling pipe 8 is drawn out through the connecting pipe 11 to form a negative pressure, thereby driving the second cooling medium to be sprayed out through the nozzle 9 onto the wire 1 in the second cooling pipe 8 for pressurization and cooling. The heat-exchanged second cooling medium is drawn into the connecting pipe 6 through the connecting pipe 11, merges with the first cooling medium, and flows into the heat exchange pipe 14. The heat carried by the first and second cooling media is utilized through the heat exchange pipe 14, heat exchange shaft 15, heat exchange stirring blade 16, and heat exchange transmission blade 17 to preheat the lubricating fluid, thereby reducing the temperature rise of the heating component 26, reducing energy consumption, and reducing costs. Meanwhile, the unidirectional flow of the first and second cooling media in the heat exchange tube 14 drives the heat exchange drive blade 17 to rotate axially around the heat exchange shaft 15, thereby driving the heat exchange shaft 15 and the heat exchange stirring blade 16 to rotate, thereby agitating the lubricating fluid, preventing heat from accumulating near the heat exchange shaft 15, making the heating of the lubricating fluid more uniform, and also agitating the lubricating fluid to make it more evenly mixed.

[0037] The above description is merely a preferred embodiment of the present invention. The scope of protection of the present invention is not limited to the above embodiments. All technical solutions falling within the scope of the present invention's concept are within the scope of protection of the present invention. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principles of the present invention should also be considered within the scope of protection of the present invention.

Claims

1. A horizontal hot wire drawing machine, comprising a worktable (2) and a heating assembly (26), a lubrication assembly, a wire drawing die (27), and a cooling assembly arranged sequentially on the worktable (2) along the moving direction of the wire (1), characterized in that: The cooling assembly includes an indirect cooling section and a direct cooling section arranged sequentially along the moving direction of the wire (1) to control the cooling rate of the wire (1). The indirect cooling section includes a first cooling pipe (3) sleeved on the outside of the wire (1), a cooling channel (4) formed hollow inside the first cooling pipe (3) for the first cooling medium to enter and exit and flow, and a drive pump to drive the first cooling medium to flow. The direct cooling section includes a second cooling pipe (8) sleeved on the outside of the wire (1) and sealed and slidingly fitted with the wire (1) at both ends, and a nozzle (9) arranged inside the second cooling pipe (8) to spray the second cooling medium toward the wire (1). A drive nozzle (9) is provided between the first cooling pipe (3) and the lubrication assembly to spray the second cooling medium and carry the heat-exchanged second cooling medium away from the second cooling pipe. 8) A drive structure that converges with the first cooling medium after heat exchange. The opening and closing of the drive structure is controlled by the flow or stillness of the first cooling medium. The lubrication assembly is provided with a waste heat utilization structure that uses the heat generated by the heat exchange between the first cooling medium and the second cooling medium and the wire (1) to preheat the lubricant. The waste heat utilization structure includes a heat exchange tube (14) for the first cooling medium and the second cooling medium to enter, exit and flow, and a heat exchange component provided on the heat exchange tube (14) to improve the heat exchange efficiency. The drive structure includes a connecting pipe (6) that is sealed and connected at both ends to the outlet of the first cooling pipe (3) and the inlet of the heat exchange tube (14), a venturi tube section (7) provided on the connecting pipe (6), and a connecting pipe (11) that is sealed and connected at both ends to the bottom of the second cooling pipe (8) and the venturi tube section (7).

2. The horizontal hot wire drawing machine according to claim 1, characterized in that: The lubrication assembly includes a reservoir (12) for storing lubricating fluid, a spray pipe (13) with one end inserted below the liquid surface of the reservoir (12) and the other end facing the wire inlet of the drawing die (27), and a pump body that drives the lubricating fluid to be sprayed through the spray pipe (13) onto the wire (1) and the drawing die (27). The heat exchange pipe (14) and the heat exchange assembly are disposed inside the reservoir (12) and both ends of the heat exchange pipe (14) are sealed and extend out of the reservoir (12).

3. A horizontal hot wire drawing machine according to claim 2, characterized in that: The heat exchange assembly includes a heat exchange shaft (15) with one end located inside the heat exchange tube (14) and the other end sealed and extending out of the heat exchange tube (14). A heat exchange stirring structure is provided between the heat exchange shaft (15) and the heat exchange tube (14) to accelerate heat exchange while making the lubricating fluid uniformly mixed. The opening and closing of the heat exchange stirring structure is controlled by the flow or stillness of the first cooling medium and the second cooling medium in the heat exchange tube (14).

4. A horizontal hot wire drawing machine according to claim 3, characterized in that: The heat exchange stirring structure includes a heat exchange stirring blade (16) protruding outward on the outer ring wall of the heat exchange shaft (15) outside the heat exchange tube (14) and a heat exchange transmission blade (17) protruding outward on the outer ring wall of the heat exchange shaft (15) inside the heat exchange tube (14). The heat exchange shaft (15) is rotatably connected to the heat exchange tube (14).

5. A horizontal hot wire drawing machine according to claim 1, characterized in that: The first cooling medium and / or the second cooling medium is a gas or a liquid.

6. A horizontal hot wire drawing machine according to claim 1, characterized in that: The cooling channel (4) is arranged in a spiral shape along the moving direction of the wire (1).

7. A horizontal hot wire drawing machine according to claim 2, characterized in that: A temperature control component is provided between the heating component (26) and the lubrication component. The temperature control component includes a first temperature probe (21) for detecting the temperature of the wire (1) coming out of the heating component (26), a second temperature probe for detecting the temperature of the lubricant sprayed from the self-spraying pipe (13), and a control module that is electrically connected to the first temperature probe (21), the second temperature probe and the heating component (26).

8. A horizontal hot wire drawing machine according to claim 7, characterized in that: A control component is provided between the first temperature probe (21) and the worktable (2) to control the first temperature probe (21) to move back and forth along the direction of movement of the vertical wire (1) to ensure that the temperature of the wire (1) is detected.

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