High-strength rare earth magnesium alloy wire roller drawing equipment with temperature control feedback system and method

Abstract

The invention discloses high-strength rare earth magnesium alloy wire roller drawing equipment with a temperature control feedback system and a method, and relates to the field of fuse wire additive manufacturing, and the equipment comprises a wire straightening device, a paint spraying device, a visual detection device, a pulse power supply applying device, an industrial personal computer, a roller drawing device, a cleaning device and a winding device. The paint spraying device reduces light reflection of the wires in a paint spraying and air drying mode, and the detection precision is improved; the visual detection device monitors the diameter and the temperature of the wire in real time, and feeds back and regulates a pulse power supply and roller drawing parameters; and the cleaning device removes surface spray paint and impurities. The method comprises the steps of wire straightening, paint spraying, detection, roller drawing, temperature regulation and control, diameter detection, cleaning, rolling and the like. Through an intelligent feedback regulation and control mechanism, continuous and intelligent preparation of the wire is achieved, the production efficiency and the quality stability of the wire are improved, and the high-precision and high-efficiency manufacturing requirements of the fields such as aerospace and the like for the high-strength rare earth magnesium alloy wire are met.

Description

Technical Field

[0001] The present invention relates to the field of fused filament additive manufacturing, and particularly to a high-strength rare-earth magnesium alloy wire rolling and drawing device and method with a temperature control feedback system. Background Art

[0002] Due to its excellent properties such as light weight, heat resistance, high specific strength, damping and vibration reduction, etc., the high-strength rare-earth magnesium alloy, combined with the characteristics of multi-degree-of-freedom, fast and efficient fused filament additive manufacturing technology, has become an ideal choice for the large-scale and integrated manufacturing of equipment such as missiles and projectiles. However, at present, the fused filament additive manufacturing of high-strength rare-earth magnesium alloy components faces the dilemma of "no wire available", and it is difficult to meet the urgent needs of the aerospace, missile and weapon and other fields for the rapid and efficient manufacturing of lightweight and high-strength large components. Therefore, the development of a continuous preparation process for ultra-long thin wires has become an urgent task.

[0003] At present, wire materials with large plastic deformation under an ultra-large reduction ratio are prone to fracture problems. To solve this problem, the research team proposed an electro-pulse-assisted reciprocating upsetting and micro-tension rolling and drawing forming process for high-strength rare-earth magnesium alloy wire materials. However, in practical applications, due to the change in the wire diameter during the rolling and drawing process, it is difficult to stably control the pulse power supply and the rolling and drawing parameters.

[0004] In recent years, with the improvement of the national manufacturing level and the perfection of the supply chain, the vision detection technology has developed rapidly, providing a powerful driving force for the transformation of traditional manufacturing industries to intelligent manufacturing. Especially, the production costs of line laser profile sensors and infrared thermometers have been reduced, making them gradually introduced into industrial production, opening up new directions for advanced detection technologies and intelligent manufacturing. Under this background, the present invention proposes a high-strength rare-earth magnesium alloy wire rolling and drawing device and method with a temperature control feedback system, aiming to achieve the stable control of the pulse power supply and the rolling and drawing parameters, improve the intelligent manufacturing level, and ensure the wire quality. Summary of the Invention

[0005] The purpose of the present invention is to provide a high-strength rare-earth magnesium alloy wire rolling and drawing device and method with a temperature control feedback system, so as to solve the problems existing in the prior art, such as low detection accuracy caused by high reflectivity on the surface of magnesium alloy wire materials and difficult stable control of the pulse power supply and the rolling and drawing parameters due to the change in the wire diameter during the rolling and drawing process, and to realize the intelligent and continuous preparation of high-strength rare-earth magnesium alloy wire materials.

[0006] To achieve the above-mentioned purpose, in one aspect, the present invention provides a high-strength rare earth magnesium alloy wire roller drawing equipment with a temperature control feedback system, including a roller drawing device, the roller drawing device including a multi-pass tension roller, which is used to perform multi-pass tension roller drawing on the wire; the front end of the roller drawing device is provided with a wire straightening device and a wire painting device, and the rear end is provided with a wire cleaning device and a winding device, the wire painting device is used to paint the surface of the wire, and the wire cleaning device is used to remove the paint and impurities on the surface of the wire; the front and rear ends of the roller drawing device are symmetrically distributed with visual detection devices, the visual detection device includes a linear laser profile sensor and an infrared temperature measurement camera, which is used to detect the diameter and temperature of the wire in real time; it also includes a pulse power supply application device, the pulse power supply application device includes a pulse power supply, and two conductive pinch rollers connected to the positive and negative poles of the pulse power supply, and the two conductive pinch rollers are respectively located at the front and rear ends of the roller drawing device; the pulse power supply application device and the visual detection device are both electrically connected to an industrial computer.

[0007] In some optional embodiments of the present invention, the wire painting device is arranged at the rear end of the wire straightening device, and includes a painting module and an air drying module, which are used to spray paint on the surface of the wire and air dry it.

[0008] In some optional embodiments of the present invention, the painting module includes a plurality of spray heads.

[0009] In some optional embodiments of the present invention, a T-shaped reflow box is provided below the air-drying module for recovering and recycling paint.

[0010] In some optional embodiments of the present invention, the adjustment parameters of the pulse power supply include current density, duty cycle and power-on time, and the power-on time is determined by the application position of the conductive pinch roller and the wire roller pulling speed.

[0011] In some optional embodiments of the present invention, the two conductive pinch rollers are respectively located on opposite sides of the two infrared temperature measuring cameras.

[0012] In some optional embodiments of the present invention, the wire cleaning device includes a grinding device and a powerful blower, the grinding device includes an annular rust removal outer shell, a rust removal inner ring is rotatably connected to the rust removal outer shell through a bearing, the outer peripheral surface of the rust removal inner ring is fixed to the driven gear and meshed with the motor, and a plurality of diamond grinding wheels are evenly distributed in an annular direction on the inner surface of the rust removal inner ring.

[0013] In some optional embodiments of the present invention, three diamond grinding wheels are provided, and the circumferential angle between the three diamond grinding wheels is 60°.

[0014] In some alternative embodiments of the present invention, multiple diamond grinding wheels are arranged in sequence along the wire traveling direction, and the front and rear coverage ranges are the feeding distance of the wire within 1 s.

[0015] On the other hand, the present invention provides a high-strength rare earth magnesium alloy wire roller drawing method with a temperature control feedback system, using the high-strength rare earth magnesium alloy wire roller drawing equipment with a temperature control feedback system described in any one of the above, and the method includes the following steps:

[0016] S1. Select a wire with a diameter of 8-10 mm and place it in a wire straightening device for straightening;

[0017] S2. Spray paint on the surface of the straightened wire and air dry it;

[0018] S3. Measure the diameter d of the wire before roller drawing through a line laser profile sensor;

[0019] S4. Perform multi-pass tension roller drawing on the wire through a roller drawing device to reduce the diameter of the wire. At the same time, continuously supplement the temperature for the wire roller drawing process through a pulse power supply;

[0020] S5. Measure the temperature t1 of the wire at the roller drawing inlet and the temperature t2 of the wire at the roller drawing outlet through an infrared temperature measurement camera respectively;

[0021] S6. Regulate the parameters of the pulse power supply according to the relationship between the temperature t1, the temperature t2 and the surface temperature T of the wire. If t1>T or t2>T, reduce the current density or duty cycle; if t1<T or t2<T, increase the current density or duty cycle;

[0022] S7. Measure the diameter D of the wire after roller drawing through a line laser profile sensor and determine whether it meets the preset value. If not, the roller drawing parameters need to be adjusted;

[0023] S8. Grind the surface of the wire to remove impurities;

[0024] S9. Wind up the wire.

[0025] Compared with the prior art, the present invention discloses at least the following beneficial effects:

[0026] The present invention provides a wire rolling and drawing device and method for high-strength rare earth magnesium alloy wires with a temperature control feedback system, including a wire straightening device, a wire painting device, a visual inspection device, a pulse power supply application device, an industrial control computer, a rolling and drawing device, a wire cleaning device, and a winding device. Among them, the wire painting device is installed behind the wire straightening device, and uses intermittent painting of "spraying paint + air drying" to solve the problem of low detection accuracy caused by high reflectivity on the surface of magnesium alloy wires; the visual inspection devices are symmetrically distributed on both sides of the rolling and drawing equipment, including a line laser profile sensor and an infrared temperature measurement camera, which compare the wire diameter and the energized temperature measured before and after, and reversely regulate the pulse power supply and the rolling and drawing parameters; the wire cleaning device is installed behind the visual inspection device, and polishes the wire surface in a non-synchronous manner to remove the surface paint and impurities. The present invention has high detection accuracy, can feedback and regulate the energized temperature, and realizes intelligent wire making. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the embodiments. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0028] Figure 1 It is a flowchart of the wire rolling and drawing method for high-strength rare earth magnesium alloy wires with a temperature control feedback system according to the present invention;

[0029] Figure 2 It is a structural diagram of the wire rolling and drawing device for high-strength rare earth magnesium alloy wires with a temperature control feedback system according to the present invention;

[0030] Figure 3 It is a structural schematic diagram of the wire painting device in the wire rolling and drawing device for high-strength rare earth magnesium alloy wires with a temperature control feedback system according to the present invention;

[0031] Figure 4 It is a structural schematic diagram of the wire grinding device in the wire rolling and drawing device for high-strength rare earth magnesium alloy wires with a temperature control feedback system according to the present invention;

[0032] Figure 5 It is a cross-sectional view of the wire grinding device in the wire rolling and drawing device for high-strength rare earth magnesium alloy wires with a temperature control feedback system according to the present invention.

[0033] In the figure: 1. Wire straightening device; 2. Wire painting device; 3. Line laser profile sensor; 4. Infrared temperature measurement camera; 5. Pulse power supply application device; 6. Industrial control computer; 7. Roller drawing device; 8. Wire cleaning device; 9. Rewinding device; 10. Air drying module; 11. Paint spraying module; 12. T-shaped reflux box; 13. Rust removal outer shell; 14. Diamond grinding wheel; 15. Motor; 16. Bearing; 17. Driven gear; 18. Rust removal inner ring; 19. Driving gear. Detailed implementation manners

[0034] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0035] The embodiments of the present invention intend to propose a high-strength rare earth magnesium alloy wire roller drawing device and method with a temperature control feedback system to solve or improve the following technical problems:

[0036] 1. The surface of the magnesium alloy wire has high reflectivity characteristics, which makes it difficult for traditional visual inspection equipment to accurately measure the diameter and surface state of the wire, resulting in the detection accuracy not meeting the production requirements;

[0037] 2. During the micro-tension roller drawing process, the diameter of the wire will continuously change with stretching, which makes it difficult to keep the energization parameters of the pulse power supply (such as current density, duty cycle, and energization time) and the parameters of the roller drawing equipment (such as roller speed difference) stable, and easily leads to unstable wire quality;

[0038] 3. After the painting treatment, the remaining paint and impurities on the surface of the wire need to be cleaned up, otherwise it will affect subsequent processing and use, and may even cause equipment pollution;

[0039] 4. The traditional wire manufacturing process is difficult to meet the high-precision and high-efficiency manufacturing requirements of high-strength rare earth magnesium alloy wires for lightweight, high-strength, and ultra-long thin wires in fields such as aerospace and missile weapons.

[0040] To make the above objects, features, and advantages of the present invention more obvious and understandable, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific implementation manners.

[0041] Refer to Figure 2 As shown, the embodiments of the present invention provide a high-strength rare earth magnesium alloy wire roller drawing device with a temperature control feedback system, including a wire straightening device 1, a wire painting device 2, a visual inspection device, a pulse power supply application device 5, an industrial control computer 6, a roller drawing device 7, a wire cleaning device 8, and a rewinding device 9.

[0042] Among them, the wire straightening device 1 is a spiral straightening device for metal wire, which consists of a straightening frame and multiple straightening rollers spirally distributed on the metal wire, and can achieve the purpose of improving the wire straightening effect and removing the residual stress of the wire.

[0043] As Figure 3 shown, the wire spraying device 2 is installed behind the wire straightening device 1, and includes a paint spraying module 11 and a drying module 10. Paint spraying is carried out at regular preset intervals. For example, paint spraying is carried out once every 5 s; the paint spraying module 11 includes multiple spray heads to ensure that the paint can cover the surface of the wire; in order to avoid polluting the tension rollers, a drying module 10 is added, and a T-shaped return box 12 is arranged below the drying module 10. On the one hand, it can prevent the paint from polluting the ground, and on the other hand, it can collect and recycle the paint, and realize the recycling of the paint by using the return pump connected to the T-shaped return box 12; by using the "paint spraying + drying" method, the problem of low detection accuracy caused by high reflectivity on the surface of magnesium alloy wire is solved.

[0044] The pulse power supply applying device 5 consists of a pulse power supply and positive and negative conductive pinch rollers. The two conductive pinch rollers are respectively arranged on both sides of the roller drawing device 7, and only maintain electrical contact without applying pressure to the wire, so as to realize continuous temperature compensation of the wire and regulate the tissue properties of the blank.

[0045] The industrial control computer 6 is connected to the vision detection device and the pulse power supply, and transmits the real-time vision detection data back to the industrial control computer 6; by calculating and feedback regulating the pulse power supply parameters, the quality of the wire is guaranteed.

[0046] As Figure 2 shown, the vision detection device includes two groups of line laser profile sensors 3 and infrared thermometers 4 arranged at the inlet end and the outlet end of the roller drawing device 7. The two groups of line laser profile sensors 3 and infrared thermometers 4 are both controlled by the industrial control computer 6. The two line laser profile sensors 3 are respectively arranged outside the positive and negative conductive pinch rollers, and the two infrared thermometers 4 are respectively arranged inside the positive and negative conductive pinch rollers and are symmetrically distributed along both sides of the roller drawing device 7. The vision detection device is connected to the industrial control computer 6 and transmits the real-time detection data back to the industrial control computer 6; the front line laser profile sensors 3 and infrared thermometers 4 compare the wire diameters and energized temperatures measured before and after, and reversely regulate the pulse power supply parameters; the rear line laser profile sensor 3 is used to detect whether the wire diameter meets 1.2 mm ± 0.05 mm, and feedback calculates the roller drawing parameters to ensure the quality of the wire.

[0047] The adjustable parameters of the pulse power supply include current density, duty cycle and energization time. The energization time is determined by the application position of the conductive pinch rollers and the wire roller drawing speed. The wire diameter affects the internal resistance, which is directly reflected as the energized temperature. The energized temperature of the wire affects the tissue properties. The parameter adjustment calculation formula is as follows:

[0048]

[0049] Where ρ is the current density, d is the wire diameter at the wire inlet, s is the duty cycle, T is the optimal surface temperature of the wire, R 0 is the resistance of the wire at 0°C, ɑ is the temperature coefficient of resistance, and V is the voltage. Previous experiments have shown that thicker wires often require lower current density and duty cycle. Excessive parameters will cause the wire to break. Therefore, only the wire diameter at the wire inlet is measured.

[0050] The roller pulling device 7 is arranged after the wire straightening device 1, and adopts multi-pass tension rollers. By adjusting the speed difference of adjacent pass rollers, the wire is subjected to tensile and compressive stress.

[0051] The wire cleaning device 8 includes a grinding device and a powerful blower, which are sequentially arranged behind the line laser profile sensor 3. Figure 4 and Figure 5 As shown, the grinding device mainly relies on the active gear 19 to mesh and rotate the diamond grinding wheel 14 on the driven gear 17 for grinding. The active gear 19 is driven by the motor 15 to remove the paint on the surface of the wire; at the same time, a strong hair dryer is used to remove grinding impurities.

[0052] like Figure 4 and Figure 5 As shown, the grinding device includes an annular rust removal outer shell 13, in which a rust removal inner ring 18 is rotatably connected via a bearing 16, the outer peripheral surface of the rust removal inner ring 18 is fixedly connected to a driven gear 17, a driving gear 19 is meshed with the driven gear 17 and is transmission-connected to a motor 15, and a plurality of diamond grinding wheels 14 are evenly distributed in an annular direction on the inner surface of the rust removal inner ring 18, so as to Figure 4 Taking the structure shown as an example, in this embodiment, three diamond grinding wheels 14 are provided, and the three diamond grinding wheels 14 are arranged on the inner wall of the grinding device along the front-to-back direction (the axial direction of the grinding device), and the three diamond grinding wheels 14 are arranged at an angle of 60° respectively, and the front-to-back coverage range of the three diamond grinding wheels 14 is the feeding distance of the wire within 1s to ensure that the paint on the surface of the wire is completely removed.

[0053] It should be understood that in some other embodiments, the number of diamond grinding wheels 14 can be reasonably increased or decreased according to the grinding processing requirements.

[0054] Reference Figure 1 As shown, an embodiment of the present invention further provides a high-strength rare earth magnesium alloy wire roll drawing method with a temperature control feedback system, using the high-strength rare earth magnesium alloy wire roll drawing device with a temperature control feedback system described in the above embodiment, the method comprises the following steps:

[0055] S1. Select a wire with a diameter of 8 - 10 mm and place it in the wire straightening device 1 for straightening;

[0056] S2. Spray paint on the surface of the straightened wire and air dry it to avoid paint contamination of the tension rollers. The spray painting adopts an intermittent spray painting method of "spray painting + air drying", and spray paint once every 5 s;

[0057] S3. Measure the diameter d of the wire before roller drawing through the line laser profile sensor 3;

[0058] S4. Perform multi-pass tension roller drawing on the wire through the roller drawing device 7 to achieve wire diameter reduction, and continuously supplement heat for the wire roller drawing process through a pulse power supply;

[0059] S5. Measure the wire temperature t1 at the roller drawing inlet and the wire temperature t2 at the roller drawing outlet respectively through the infrared temperature measurement camera 4;

[0060] S6. Regulate the parameters of the pulse power supply according to the relationship between the temperature t1, the temperature t2 and the wire surface temperature T. If t1 > T or t2 > T, reduce the current density or duty cycle; if t1 < T or t2 < T, increase the current density or duty cycle;

[0061] S7. Measure the diameter D of the wire after roller drawing and forming through the line laser profile sensor 3, and determine whether it meets 1.2 mm ± 0.05 mm. If not, adjust the roller drawing parameters;

[0062] S8. Polish the surface of the wire through the wire cleaning device 8 to remove the spray paint and impurities;

[0063] S9. Wind up the processed wire through the winding device 9.

[0064] In view of the problems existing in the prior art, the embodiment of the present invention proposes a high-strength rare earth magnesium alloy wire roller device and method with a temperature control feedback system. Compared with the prior art, at least the following beneficial effects are disclosed:

[0065] 1. By installing a wire spray painting device 2 behind the wire straightening device 1 and adopting an intermittent spray painting method of "spray painting + air drying" to treat the surface of the wire, the reflectivity is reduced, thereby improving the detection accuracy of the visual detection device. Solve the problem of low detection accuracy caused by high reflectivity on the surface of magnesium alloy wire.

[0066] 2. A visual detection device (including a line laser profile sensor 3 and an infrared temperature measurement camera 4) is introduced to detect the diameter and temperature of the wire in real time, and the data is transmitted to the industrial control computer 6 for analysis and calculation. Through a feedback control mechanism, the pulse power supply parameters and roller drawing parameters are dynamically adjusted according to the detection data to ensure that the temperature and diameter of the wire meet the requirements during the processing. This solves the problem that it is difficult to stably control the pulse power supply and roller drawing parameters due to the change in the wire diameter during the roller drawing process.

[0067] 3. A wire cleaning device 8 is designed, including a grinding device and a powerful hair dryer. The grinding device grinds the surface of the wire through a diamond grinding wheel 14 to remove the paint; the powerful hair dryer is used to blow away the impurities generated during the grinding process to ensure the cleanliness of the wire surface. This solves the problem of cleaning the paint and impurities on the wire surface.

[0068] 4. By integrating devices such as wire straightening, painting, visual detection, pulse power supply application, roller drawing, cleaning, and winding, a complete feedback temperature control system for the micro-tension roller drawing process is constructed. This system can realize the continuous preparation of the wire, and through an intelligent feedback control mechanism, ensure the stability and consistency of the wire quality, and improve the production efficiency and intelligent level. This solves the problem that the traditional wire manufacturing process is difficult to meet the requirements of high-precision and high-efficiency manufacturing of high-strength rare earth magnesium alloy wires.

[0069] The details not described in this invention are all conventional technical means well known to those skilled in the art.

[0070] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present invention.

[0071] The embodiments described above are only used to describe the preferred mode of the present invention, and do not limit the scope of the present invention. Without departing from the design spirit of the present invention, various deformations and improvements made by those of ordinary skill in the art to the technical solutions of the present invention shall fall within the protection scope determined by the claims of the present invention.

Claims

1. A high-strength rare earth magnesium alloy wire roll drawing equipment with a temperature control feedback system, comprising a roll drawing device (7), characterized in that: The roller pulling device (7) comprises a multi-pass tension roller for performing multi-pass tension roller pulling on the wire; the front end of the roller pulling device (7) is provided with a wire straightening device (1) and a wire painting device (2), and the rear end is provided with a wire cleaning device (8) and a winding device (9), the wire painting device (2) is used to spray paint on the surface of the wire, and the wire cleaning device (8) is used to remove paint and impurities on the surface of the wire; the front end and the rear end of the roller pulling device (7) are symmetrically distributed with visual detection devices, the visual detection device comprises a line laser profile sensor (3) and an infrared temperature measurement camera (4), which are used to detect the diameter and temperature of the wire in real time; and the roller pulling device (7) also comprises a pulse power supply application device (5), the pulse power supply application device (5) comprises a pulse power supply, and two conductive pinch rollers connected to the positive and negative poles of the pulse power supply, the two conductive pinch rollers are respectively located at the front end and the rear end of the roller pulling device (7); the pulse power supply application device (5) and the visual detection device are both electrically connected to an industrial control computer (6).

2. The high-strength rare earth magnesium alloy wire roll drawing equipment with a temperature control feedback system according to claim 1, characterized in that: The wire painting device (2) is arranged at the rear end of the wire straightening device (1), and comprises a painting module (11) and an air drying module (10), and is used for painting the surface of the wire and air drying the wire.

3. The high-strength rare earth magnesium alloy wire roll drawing equipment with a temperature control feedback system according to claim 2, characterized in that: The painting module (11) comprises a plurality of spray heads.

4. The high-strength rare earth magnesium alloy wire roll drawing equipment with a temperature control feedback system according to claim 2 or 3, characterized in that: A T-shaped reflow box (12) is provided below the air-drying module (10) for recovering and recycling paint.

5. The high-strength rare earth magnesium alloy wire roll drawing equipment with a temperature control feedback system according to claim 1, characterized in that: The regulating parameters of the pulse power supply include current density, duty cycle and power-on time, and the power-on time is determined by the application position of the conductive pinch roller and the pulling speed of the wire roller.

6. The high-strength rare earth magnesium alloy wire roll drawing equipment with a temperature control feedback system according to claim 5, characterized in that: The two conductive pinch rollers are respectively located on opposite sides of the two infrared temperature measuring cameras (4).

7. The high-strength rare earth magnesium alloy wire roll drawing equipment with a temperature control feedback system according to claim 1, characterized in that: The wire cleaning device (8) comprises a grinding device and a powerful blower, wherein the grinding device comprises an annular rust removal outer shell (13), wherein a rust removal inner ring (18) is rotatably connected to the rust removal outer shell (13) via a bearing (16), wherein the outer peripheral surface of the rust removal inner ring (18) is fixedly connected to a driven gear (17) and meshed with a motor (15), and a plurality of diamond grinding wheels (14) are evenly distributed in an annular direction on the inner surface of the rust removal inner ring (18).

8. The high-strength rare earth magnesium alloy wire roller drawing equipment with a temperature control feedback system according to claim 7, characterized in that: Three diamond grinding wheels (14) are provided, and the circumferential angle between the three diamond grinding wheels (14) is 60°.

9. The high-strength rare earth magnesium alloy wire roll drawing equipment with a temperature control feedback system according to claim 7 or 8, characterized in that: A plurality of diamond grinding wheels (14) are arranged front and back along the direction of travel of the wire material, and the front and back coverage range is the feeding distance of the wire material within 1 second.

10. A high-strength rare earth magnesium alloy wire roll drawing method with a temperature control feedback system, using the high-strength rare earth magnesium alloy wire roll drawing device with a temperature control feedback system according to any one of claims 1 to 9, characterized in that: The following steps are involved: S1, select a wire with a diameter of 8-10 mm and place it in a wire straightening device (1) for straightening; S2, spray paint on the surface of the straightened wire and air dry it; S3, measuring the wire diameter d before roller drawing by a line laser profile sensor (3); S4, performing multiple tension roller pulling on the wire through the roller pulling device (7) to reduce the diameter of the wire, and at the same time, continuously supplementing the temperature of the wire during the roller pulling process through a pulse power supply; S5, measuring the temperature t1 of the wire at the roller drawing entrance and the temperature t2 of the wire at the roller drawing exit respectively by using an infrared temperature measuring camera (4); S6. Adjust the parameters of the pulse power supply according to the relationships between temperature t1, temperature t2 and the surface temperature T of the wire. If t1 > T or t2 > T, reduce the current density or duty cycle; if t1 < T or t2 < T, increase the current density or duty cycle. S7. Measure the diameter D of the wire after roller drawing forming through the line laser profile sensor (3), and determine whether it meets the preset value. If it does not meet the requirement, the roller drawing parameters need to be adjusted. S8. Grind the surface of the wire to remove impurities. S9. Wind up the wire.

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