High speed wire rod finishing mill

By using gear assembly meshing transmission and lifting assembly synchronous adjustment, the driven roller and the driving roller are raised and lowered synchronously. Combined with the precise control of nozzle cooling and straightening assembly, the problems of speed deviation and insufficient cooling in existing high-speed metal wire rod finishing mills are solved, thus improving rolling accuracy and finished product quality.

CN122164743APending Publication Date: 2026-06-09NANTONG JINLUN PRECISION INTELLIGENT MFG CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
NANTONG JINLUN PRECISION INTELLIGENT MFG CO LTD
Filing Date
2026-04-17
Publication Date
2026-06-09

AI Technical Summary

Technical Problem

The existing high-speed metal wire finishing mill has a complex drive structure, which increases the equipment maintenance cost. Furthermore, the multiple drive methods lead to speed deviations, affecting the consistency of rolling specifications. The lack of effective cooling measures for rolled metal wire results in a decline in the quality of finished products.

Method used

The active roller uses a gear assembly for meshing transmission to ensure consistent rotation speed. The lifting assembly synchronously adjusts the driven roller, and the nozzle cooling assembly achieves precise cooling. The straightening assembly optimizes the straightness of the wire, and the nozzle angle is adjusted using electromagnetic blocks and magnetic force. The processor controls the linkage between the nozzle and the straightening roller to reduce the probability of equipment failure.

Benefits of technology

It improves rolling accuracy and equipment reliability, reduces maintenance costs, ensures consistent rolling specifications and wire quality, and achieves efficient automated control.

✦ Generated by Eureka AI based on patent content.

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Abstract

This invention discloses a high-speed metal wire rod finishing mill, relating to the technical field of metal wire rod processing. It includes a support frame, on which a motor is mounted. The motor's output end is connected to a rotating shaft, and a drive roller is mounted on the outer side of the shaft. The drive rollers are symmetrically arranged on the support frame. A lifting assembly is mounted on the support frame, and a cooling assembly is located below the lifting assembly. The cooling assembly includes nozzles that perform cooling through deflection and sweeping. A straightening assembly is mounted on the support frame, including straightening rollers. The straightening rollers' lifting and lowering adapts to the straightening requirements of different wire rod specifications. In this high-speed metal wire rod finishing mill, two sets of drive rollers are meshed and driven by gear assemblies on the outer side of the rotating shaft, ensuring consistent rotation speed and improving overall rolling accuracy. The driven rollers lift and lower synchronously, reducing the problem of reduced accuracy caused by multiple drives. The nozzles spray coolant for cooling, further optimizing rolling accuracy.
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Description

Technical Field

[0001] This invention relates to the technical field of metal wire processing, specifically to a high-speed metal wire finishing mill. Background Technology

[0002] Rolling mills are the core equipment in metal rolling processes. In the production and processing of metal wire, rolling mills are needed to complete the rolling and forming process of wire. However, the existing rolling mills used in metal wire production rely on manual assistance during operation, which not only greatly increases the labor intensity of operators, but also results in poor overall practicality of the equipment, making it difficult to achieve large-scale promotion and application.

[0003] To overcome the above-mentioned defects, the prior art (Chinese patent with announcement number CN223234709U and announcement date of 2025-08-19) discloses a steel rolling mill for angle steel production, including a steel rolling mill frame, a support roller arranged above the steel rolling mill frame, a squeeze roller arranged above the support roller, guide plates arranged on both sides of the support roller and the squeeze roller, a support mechanism arranged above the guide plates, an adjustment mechanism arranged above the squeeze roller, a drive mechanism arranged on the outside of the support roller, and the support mechanism including a support frame, which is fixedly installed on the upper surface of the steel rolling mill frame. This steel rolling mill for angle steel production, by setting guide plates, provides a limiting effect for the processed angle steel during the rolling process. The design of two pairs of guide plates prevents the angle steel from shifting during rolling, thus ensuring the production quality of the angle steel, guaranteeing the stability of the angle steel processing operation, and improving the protective performance of the steel rolling mill. Existing technology two (Chinese patent with announcement number CN219112504U, announcement date 2022-04-05) describes a rolling mill for non-ferrous metal sheet rolling production, comprising: a base; a rolling mill body, disposed on top of the base; a lifting mechanism, disposed on the front of the rolling mill body; and a lifting mechanism including... Includes: a dual-head motion motor, fixedly installed on the top of the base; connecting rods, fixedly connected to the left and right sides of the dual-head motion motor; a column, fixedly connected to the top of the base, and hollow inside; a first bevel gear, fixedly connected to the end of the connecting rod away from the dual-head motion motor, and located inside the column; and a lead screw, with its top and bottom rotatably connected to the top and bottom of the column respectively via bearings. This invention reduces the labor intensity of operators by placing a non-ferrous metal sheet on a rectangular frame, activating the dual-head motion motor, which drives the two connecting rods to rotate in opposite directions, causing the moving rod to lift the rectangular frame to the rolling mill body.

[0004] While existing technologies improve automation by driving the sheet metal to move through a drive structure, the drive structure is complex, significantly increasing the overall maintenance cost of the equipment. Furthermore, the use of multiple drives to separately drive the rollers can easily lead to speed deviations, which in turn affect the consistency of the rolled metal wire specifications. The rolled metal wire also lacks timely and effective cooling measures, and high temperatures can easily cause wire deformation, ultimately reducing the quality of the rolled product.

[0005] To address the aforementioned issues, there is an urgent need for innovative design based on the existing high-speed metal wire finishing mill. Therefore, we proposed that a high-speed metal wire finishing mill can effectively solve the above problems. Summary of the Invention

[0006] The purpose of this invention is to provide a high-speed metal wire finishing mill to solve the problems mentioned in the background art. Currently, the market uses a drive structure to move the plate to improve the level of automation, but the drive structure is complex, which greatly increases the overall maintenance cost of the equipment. Furthermore, the use of multiple drives to drive the rollers separately can easily cause speed deviations, which in turn affect the consistency of the rolled metal wire specifications. The rolled metal wire also lacks timely and effective cooling measures, and high temperatures can easily cause wire deformation, ultimately reducing the quality of the rolled product.

[0007] To achieve the above objectives, the present invention provides the following technical solution: a high-speed metal wire rod finishing mill, comprising a support frame, a motor mounted on the support frame, a drive roller mounted on the outer side of the output end of the motor and a drive roller symmetrically arranged on the support frame, a gear assembly consisting of four meshing transmission gears mounted on the outer side of the support frame, transmission gears mounted on the outer side of each drive roller, and a transmission structure formed by the drive roller and the shaft via the gear assembly, a lifting assembly mounted on the support frame, a driven roller connected below the lifting assembly, the driven roller being located on the upper surface of the drive roller, a cooling assembly below the lifting assembly, the cooling assembly including a nozzle that performs cooling by deflection and sweeping, and a straightening assembly mounted on the support frame, the straightening assembly including a straightening roller, the lifting and lowering of the straightening roller adapting to the straightening requirements of wire rods of different specifications.

[0008] Preferably, the lifting assembly includes a telescopic cylinder mounted on a bracket, a lifting seat connected to the output end of the telescopic cylinder, lifting rods symmetrically arranged below the lifting seat, and the bottom end of the lifting rods connected to a driven roller.

[0009] Preferably, the lifting assembly includes a servo motor mounted on a bracket, and the output end of the servo motor is connected to a screw. A lifting seat is provided on the outside of the screw, and lifting rods are symmetrically arranged under the lifting seat. The bottom end of the lifting rods is connected to a driven roller.

[0010] Preferably, the cooling component includes a support base installed under the lifting seat, a support plate connected to the support base via a rotating rod, a torsion spring sleeved on the outer side of the rotating rod, and a cooling nozzle installed at the bottom of the support plate. The nozzle is connected to an external cooling pump via a pipe.

[0011] Preferably, the straightening assembly includes a support frame mounted on a bracket, a guide rod installed inside the support frame, a conveying roller installed outside the guide rod, a lifting plate sleeved outside the guide rod, a straightening roller located directly above the conveying roller on the side end of the lifting plate, and a fixed guide wheel and a fine-tuning guide wheel mounted on the bracket.

[0012] Preferably, a measuring instrument is installed under the lifting seat, a processor is installed on the bracket, the measuring instrument is electrically connected to the processor, a first ordinary magnetic block is installed on the side end of the support plate, and a first electromagnetic block adapted to the first ordinary magnetic block is provided on the side end of the support seat, the first electromagnetic block is electrically connected to the processor.

[0013] Preferably, a second ordinary magnetic block is installed under the lifting plate, a second electromagnetic block is installed on the outside of the guide rod, the second electromagnetic block is electrically connected to the processor, and a first spring is sleeved on the outside of the guide rod.

[0014] Preferably, a piston is installed under the lifting seat, and a conveying cylinder is provided on the bracket, with the piston extending through into the interior of the conveying cylinder.

[0015] Preferably, a sleeve is provided on the side end of the support base, and an abutment rod is connected inside the sleeve by a second spring. The abutment rod is located on the side end of the support plate, and the inner cavity of the conveying cylinder is connected to the inner cavity of the sleeve through a first pipe.

[0016] Preferably, a telescopic rod is installed inside the support frame, a third spring is sleeved on the outside of the telescopic rod, the end of the telescopic rod is connected to the upper surface of the lifting plate, and the inner cavity of the conveying cylinder is connected to the inner cavity of the telescopic rod through a second pipe.

[0017] Compared with the prior art, the beneficial effects of the present invention are as follows: In this high-speed metal wire finishing mill, the two sets of driving rollers are driven by gear assemblies on the outside of the rotating shaft to ensure consistent rotation speed and improve the overall rolling accuracy. The driven rollers rise and fall synchronously, reducing the problem of reduced accuracy caused by multiple drives. The nozzle sprays coolant for cooling, further optimizing the rolling accuracy. The specific details are as follows: (1) By precisely matching the small gear and the large gear, the two sets of active rollers are driven to rotate synchronously, ensuring that the speed of the two active rollers is completely consistent, providing uniform and stable power output for wire rolling, improving the reliability of equipment operation, and adapting to the needs of large-volume and high-precision wire rolling.

[0018] (2) By relying on the structure of the lifting assembly driving the lifting seat and the lifting rod, the driven roller can be adjusted synchronously. With the help of the measuring instrument to detect the lifting distance in real time and feed it back to the processor, the size of the roller gap between the driven roller and the driving roller can be accurately controlled, avoiding the loss of accuracy caused by decentralized adjustment.

[0019] (3) The cooling system drives the nozzle to rotate around the rotating rod through the magnetic force of the electromagnetic block and the ordinary magnetic block. Combined with the torsion spring reset function, the nozzle angle can be precisely adjusted according to the change of the roll gap to achieve directional cooling of the rolling area and avoid insufficient cooling or excessive cooling from affecting the wire performance.

[0020] (4) The processor synchronously controls the second electromagnetic block to work according to the roll gap signal. The lifting plate is driven to lift the straightening roll by magnetic repulsion, so that the distance between the straightening roll and the conveying roll is synchronously adjusted with the roll gap, realizing the linkage and adaptation of the rolling and straightening processes. The screw adjustment structure of the fine-tuning guide wheel can further optimize the guiding accuracy. Combined with the extrusion straightening of the straightening roll and the conveying roll, the straightness of the wire is greatly improved.

[0021] (5) The movement of the lifting seat drives the piston to reciprocate in the conveying cylinder. The generated air pressure acts on the sleeve contact rod and the telescopic rod through the pipeline, which assists in the adjustment of the nozzle angle and the lifting of the straightening roller, reducing the equipment maintenance cost and the probability of failure. Attached Figure Description

[0022] Figure 1 These are schematic diagrams of the overall structure of Embodiments 1 and 2 of the present invention; Figure 2 This is a schematic diagram of the overall side view structure of the present invention; Figure 3 This is a side view of the motor and gear assembly of the present invention; Figure 4 This is a schematic diagram of the connection structure between the lifting seat and the support seat of the present invention; Figure 5 This is a schematic diagram of the cross-sectional structure of the support base of the present invention; Figure 6 This is a side view of the support frame structure of the present invention; Figure 7 For the present invention Figure 6 Enlarged structural diagram at point A in the middle; Figure 8 This is a schematic diagram of the overall structure of Embodiment 3 of the present invention; Figure 9 This is a schematic diagram of the connection structure between the lifting seat and the piston in this invention; Figure 10 This is a schematic diagram of the cross-sectional structure of the sleeve of the present invention; Figure 11 This is a schematic diagram of the cross-sectional structure of the support frame of the present invention.

[0023] In the diagram: 1. Bracket; 2. Motor; 3. Gear assembly; 4. Drive roller; 5. Telescopic cylinder; 6. Lifting seat; 7. Lifting rod; 8. Driven roller; 9. Support seat; 10. Support plate; 11. Rotating rod; 12. Torsion spring; 13. Nozzle; 14. Support frame; 15. Guide rod; 16. Conveying roller; 17. Lifting plate; 18. Straightening roller; 19. Fixed guide wheel; 20. Fine-tuning guide wheel; 21. Measuring instrument; 22. First ordinary magnetic block; 23. First electromagnetic block; 24. Second electromagnetic block; 25. Second ordinary magnetic block; 26. First spring; 27. Conveying cylinder; 28. Piston; 29. ​​First pipe; 30. Sleeve; 31. Second spring; 32. Abutment rod; 33. Second pipe; 34. Telescopic rod; 35. Third spring. Detailed Implementation

[0024] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0025] Example 1: In this example, the lifting seat 6 drives the driven roller 8 to rise and fall synchronously via the symmetrical lifting rods 7 below. The driven roller 8 is in contact with the upper surface of the driving roller 4. The change in the distance between the two adapts to the rolling requirements of different specifications of wire, reducing the problem of reduced accuracy caused by multiple drives. Figures 1-7The technical solution shown includes a support 1, on which a motor 2 is mounted. The output end of the motor 2 is connected to a rotating shaft, and an active roller 4 is mounted on the outside of the rotating shaft. The active rollers 4 are symmetrically arranged on the support 1. A gear assembly 3 consisting of four meshing transmission gears is mounted on the outside of the support 1. Each active roller 4 has a transmission gear on its outside, and the rotating shaft and the active rollers 4 form a transmission structure via the gear assembly 3. A lifting assembly is mounted on the support 1, and a driven roller 8 is connected below the lifting assembly. The driven roller 8 is located on the upper surface of the active roller 4. A cooling assembly is located below the lifting assembly, and the cooling assembly includes a nozzle 13. The nozzle 13 performs cooling by deflection and sweeping. A straightening assembly is mounted on the support 1, and the straightening assembly includes a straightening roller 1. 8. The straightening roller 18 is used to adapt to the straightening requirements of different wire specifications. The lifting assembly includes a telescopic cylinder 5 mounted on the bracket 1. The output end of the telescopic cylinder 5 is connected to a lifting seat 6. Lifting rods 7 are symmetrically arranged below the lifting seat 6. The bottom end of the lifting rods 7 is connected to the driven roller 8. The straightening assembly includes a support frame 14 mounted on the bracket 1. A guide rod 15 is installed inside the support frame 14. A conveying roller 16 is installed on the outside of the guide rod 15. A lifting plate 17 is sleeved on the outside of the guide rod 15. A straightening roller 18 is located directly above the conveying roller 16 on the side end of the lifting plate 17. A fixed guide wheel 19 and a fine-tuning guide wheel 20 are installed on the bracket 1. The bracket 1 provides support for the entire equipment. After the motor 2 is started, it drives the rotation. When the shaft rotates, the drive rollers 4 on the outer side of the shaft rotate synchronously. The two sets of drive rollers 4 are driven by gear assemblies 3 on the outer side of the shaft, ensuring consistent rotational speeds. The gear assembly 3 includes a small gear connected to the outer side of the shaft, a large gear meshing with the small gear, and another large gear meshing synchronously with the small gear. Both large gears are fitted and fixed to the outer side of the shaft connecting the drive rollers 4, enabling the drive rollers 4 to rotate synchronously, providing power for wire rod rolling and improving overall rolling accuracy. The overall structure is simple and easy to maintain. When the roll gap needs adjustment, the telescopic cylinder 5 actuates, pushing the lifting seat 6 up and down. The lifting seat 6 drives the driven rollers 8 to rise and fall synchronously via symmetrical lifting rods 7 below. The upper surface of the drive roller 4 is adjusted by varying the distance between the two to adapt to the rolling requirements of different wire specifications, reducing the problem of reduced accuracy caused by multiple drives. After rolling, since the lifting seat 6 is connected to the rotating rod 11 via the support seat 9, and the outside of the rotating rod 11 is connected to the nozzle 13 via the support plate 10, the nozzle 13 can easily deliver coolant through the connected cooling pump. The sprayed coolant is used to cool down the wire. The cooled wire is straightened by being squeezed between the straightening roller 18 and the conveying roller 16. The straightened wire is then guided and output through the fixed guide wheel 19 and the fine-tuning guide wheel 20. The fine-tuning guide wheel 20 can be adjusted with a screw structure to adjust the distance between itself and the fixed guide wheel 19, further optimizing the guiding accuracy.

[0026] Example 2: In this example, the straightening roller 18 on the side of the driving lifting plate 17 is raised, thereby adjusting the distance between the straightening roller 18 and the conveying roller 16 on the guide rod 15 inside the support frame 14, to adapt to the straightening of the wire after the roller gap is adjusted, as follows: Figures 1-7 As shown, the following is disclosed: a measuring instrument 21 is installed under the lifting seat 6, and a processor is installed on the bracket 1. The measuring instrument 21 is electrically connected to the processor. A first ordinary magnetic block 22 is installed on the side of the support plate 10. A first electromagnetic block 23 adapted to the first ordinary magnetic block 22 is provided on the side of the support seat 9. The first electromagnetic block 23 is electrically connected to the processor. A second ordinary magnetic block 25 is installed under the lifting plate 17. A second electromagnetic block 24 is installed on the outside of the guide rod 15. The second electromagnetic block 24 is electrically connected to the processor. A first spring 26 is sleeved on the outside of the guide rod 15. The measuring instrument 21 installed under the lifting seat 6 detects the distance the lifting seat 6 moves, thereby understanding the roll gap between the driven roller 8 and the driving roller 4, and transmits the signal to the processor on the bracket 1. After analyzing the signal, the processor outputs a control command. The processor controls the first electromagnetic block 23 on the side of the support seat 9 to be energized. The first electromagnetic block 23 and the first ordinary magnetic block 22 on the side of the support plate 10 generate a magnetic force, driving the support plate 10 to rotate. Rotating rod 11 rotates, and torsion spring 12 sleeved on the outside of rotating rod 11 provides reset elasticity. The nozzle 13 at the bottom of support plate 10 adjusts the cooling range according to the angle change. At the same time, the processor controls the external cooling pump to increase the flow rate. The nozzle 13 receives coolant through the pipeline to precisely cool the rolling area. If it is necessary to expand the cooling range, the processor controls the first electromagnetic block 23 to be energized intermittently, so that the nozzle 13 deflects and sweeps to adapt to the cooling requirements after the roll gap is adjusted. The processor also controls the second electromagnetic block 24 on the outside of guide rod 15 to be energized. The second electromagnetic block 24 and the second ordinary magnetic block 25 below the lifting plate 17 generate a repulsive force, pushing the lifting plate 17 to move upward along the guide rod 15. The straightening roller 18 on the side of the lifting plate 17 rises synchronously, so that the distance between the straightening roller 18 and the conveying roller 16 on the guide rod 15 inside the support frame 14 increases synchronously, so as to adapt to the straightening of the wire after the roll gap is widened. The first spring 26 sleeved on the outside of guide rod 15 assists the lifting plate 17 to reset, improving the automation level of the overall structure.

[0027] Example 3: In this example, the auxiliary lifting plate 17 is adjusted in height to regulate the distance between the straightening roller 18 and the conveying roller 16. The overall structure is simple and easy to maintain. Specifically, as shown below... Figures 8-11As shown, the following is disclosed: a piston 28 is installed under the lifting seat 6, and a conveying cylinder 27 is provided on the bracket 1. The piston 28 extends through the conveying cylinder 27. A sleeve 30 is provided on the side of the support seat 9. A contact rod 32 is connected to the inside of the sleeve 30 through a second spring 31. The contact rod 32 is located on the side of the support plate 10. The inner cavity of the conveying cylinder 27 is connected to the inner cavity of the sleeve 30 through a first pipe 29. A telescopic rod 34 is installed inside the support frame 14. A third spring 35 is sleeved on the outside of the telescopic rod 34. The end of the telescopic rod 34 is connected to the upper surface of the lifting plate 17. The inner cavity of the conveying cylinder 27 is connected to the inner cavity of the telescopic rod 34 through a second pipe 33. When the lifting seat 6 moves up and down, the piston 28 below it reciprocates synchronously in the conveying cylinder 27 on the bracket 1, changing the air pressure inside the conveying cylinder 27. The conveying cylinder 27 is connected to the sleeve on the side of the support seat 9 through the first pipe 29. The sleeve 30 is connected to the inner cavity of the telescopic rod 34 inside the support frame 14 via the second pipe 33. The inner cavity of the sleeve 30 is connected to the abutment rod 32 via the second spring 31. The air pressure generated by the movement of the piston 28 pushes the abutment rod 32 to abut the side end of the support plate 10, and the torsion spring 12 cooperates to realize the rotation of the nozzle 13 angle. The telescopic rod 34 is fitted with a third spring 35 on the outside. The end of the telescopic rod 34 is connected to the upper surface of the lifting plate 17. The air pressure transmitted by the conveying cylinder 27 acts on the telescopic rod 34 to assist the lifting plate 17 in raising and lowering, thereby adjusting the distance between the straightening roller 18 and the conveying roller 16. In order to ensure the stability of the air pressure in the first pipe 29 and the second pipe 33, valves need to be installed on the first pipe 29 and the second pipe 33 to facilitate the opening and closing of the valves as needed, thereby locking the current air pressure state, so that the lifting plate 17 drives the straightening roller 18 to maintain a stable distance and ensure straightening accuracy.

[0028] Example 4: In this example, another drive and roll gap adjustment scheme for a high-speed metal wire rod finishing mill is provided, suitable for production scenarios with higher requirements for rolling accuracy, response speed, and automation. The lifting assembly includes a servo motor mounted on a bracket 1, with a screw connected to the output end of the servo motor. A lifting seat 6 is provided on the outside of the screw, and lifting rods 7 are symmetrically arranged below the lifting seat 6. The bottom end of the lifting rods 7 is connected to the driven roller 8. The servo motor drives the screw to rotate, causing the lifting seat 6 to rise and fall, thereby driving the lifting rods 7 to move the driven roller 8, thus adjusting the roll gap between the driven roller 8 and the driving roller 4. Furthermore, the lifting assembly can be replaced with a worm gear mechanism, and the lifting assembly includes a servo motor mounted on the bracket 1. A worm gear is connected to the output end of the servo motor, and a matching worm wheel is provided on the side end of the worm gear. A screw is coaxially installed inside the worm wheel, and a lifting seat 6 is provided on the outside of the screw. A lifting rod 7 is symmetrically arranged below the lifting seat 6. The bottom end of the lifting rod 7 is connected to the driven roller 8, and a guide rod is connected through the inside of the lifting seat 6. At this time, the servo motor receives instructions from the processor and drives the worm gear to rotate, which in turn drives the worm wheel to rotate. The rotation of the worm wheel drives the screw to rotate. The lifting seat 6 is raised and lowered through the cooperation of the screw and the guide rod, which in turn drives the driven roller 8 to rise and fall, thereby adjusting the roller gap between the driven roller 8 and the driving roller 4. Therefore, users can choose different solutions for the lifting components according to actual production needs, and the whole system has high flexibility and applicability.

[0029] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A high-speed metal wire rod finishing mill, comprising a support (1), characterized in that, A motor (2) is installed on the bracket (1). The output end of the motor (2) is connected to a rotating shaft and an active roller (4) is installed on the outside of the rotating shaft. The active roller (4) is symmetrically arranged on the bracket (1). A gear assembly (3) consisting of four meshing transmission gears is installed on the outside of the bracket (1). Transmission gears are provided on the outside of the active roller (4). The rotating shaft and the active roller (4) form a transmission structure through the gear assembly (3). A lifting assembly is installed on the bracket (1). A driven roller (8) is connected to the lower part of the lifting assembly. The driven roller (8) is located on the upper surface of the active roller (4). A cooling assembly is provided under the lifting assembly. The cooling assembly includes a nozzle (13). The nozzle (13) cools down by deflection and sweeping. A straightening assembly is installed on the bracket (1). The straightening assembly includes a straightening roller (18). The straightening roller (18) is used to adapt to the straightening requirements of different specifications of wires by lifting and lowering.

2. The high-speed metal wire rod finishing mill according to claim 1, characterized in that: The lifting assembly includes a telescopic cylinder (5) mounted on a bracket (1), a lifting seat (6) connected to the output end of the telescopic cylinder (5), and lifting rods (7) symmetrically arranged below the lifting seat (6), with the bottom end of the lifting rods (7) connected to the driven roller (8).

3. A high-speed metal wire rod finishing mill according to claim 1, characterized in that: The lifting assembly includes a servo motor mounted on a bracket (1), and a screw is connected to the output end of the servo motor. A lifting seat (6) is provided on the outside of the screw. A lifting rod (7) is symmetrically arranged under the lifting seat (6). The bottom end of the lifting rod (7) is connected to the driven roller (8).

4. A high-speed metal wire rod finishing mill according to claim 1, characterized in that: The cooling assembly includes a support base (9) installed under the lifting base (6), a support plate (10) connected to the support base (9) via a rotating rod (11), a torsion spring (12) sleeved on the outside of the rotating rod (11), and a nozzle (13) for cooling installed at the bottom of the support plate (10), which is connected to an external cooling pump via a pipe.

5. A high-speed metal wire rod finishing mill according to claim 4, characterized in that: The straightening assembly includes a support frame (14) mounted on a bracket (1), a guide rod (15) installed inside the support frame (14), a conveying roller (16) mounted on the outside of the guide rod (15), a lifting plate (17) sleeved on the outside of the guide rod (15), a straightening roller (18) located directly above the conveying roller (16) on the side end of the lifting plate (17), and a fixed guide wheel (19) and a fine-tuning guide wheel (20) mounted on the bracket (1).

6. A high-speed metal wire rod finishing mill according to claim 5, characterized in that: A measuring instrument (21) is installed under the lifting seat (6), a processor is installed on the bracket (1), the measuring instrument (21) is electrically connected to the processor, a first ordinary magnetic block (22) is installed on the side of the support plate (10), and a first electromagnetic block (23) adapted to the first ordinary magnetic block (22) is provided on the side of the support seat (9), and the first electromagnetic block (23) is electrically connected to the processor.

7. A high-speed metal wire rod finishing mill according to claim 6, characterized in that: A second ordinary magnetic block (25) is installed under the lifting plate (17), and a second electromagnetic block (24) is installed on the outside of the guide rod (15). The second electromagnetic block (24) is electrically connected to the processor, and a first spring (26) is sleeved on the outside of the guide rod (15).

8. A high-speed metal wire rod finishing mill according to claim 7, characterized in that: A piston (28) is installed under the lifting seat (6), and a conveying cylinder (27) is provided on the bracket (1). The piston (28) extends through into the inside of the conveying cylinder (27).

9. A high-speed metal wire rod finishing mill according to claim 8, characterized in that: A sleeve (30) is provided on the side end of the support base (9). An abutment rod (32) is connected inside the sleeve (30) through a second spring (31). The abutment rod (32) is located on the side end of the support plate (10). The inner cavity of the conveying cylinder (27) is connected to the inner cavity of the sleeve (30) through a first pipe (29).

10. A high-speed metal wire rod finishing mill according to claim 9, characterized in that: The support frame (14) is equipped with a telescopic rod (34), and a third spring (35) is sleeved on the outside of the telescopic rod (34). The end of the telescopic rod (34) is connected to the upper surface of the lifting plate (17). The inner cavity of the conveying cylinder (27) is connected to the inner cavity of the telescopic rod (34) through the second pipe (33).