A device for finishing the outer surface of a steel wire

Abstract

The utility model provides a kind of steel wire's outer surface finish treatment device, including the first guide component, box and second guide component being sequentially arranged along the advancing direction of steel wire on steel wire production line, the discharge end of second guide component is connected with external take-up device, rotationally installs pivot in box, and the both ends of pivot are fixedly connected with one polishing assembly respectively, the advancing direction of steel wire is guided in first guide component and second guide component, and two polishing assemblies are used to polish the outer surface of steel wire.The utility model discloses a kind of steel wire's outer surface finish treatment device, for polishing the outer surface of steel wire, to replace operator hand-held angle grinder and polish steel wire, solve the problem that low production efficiency, great labor intensity can appear in traditional polishing process, it is convenient for the further processing of downstream process.

Description

Technical Field

[0001] This utility model belongs to the field of steel wire outer surface treatment, and in particular relates to a device for steel wire outer surface smoothing treatment. Background Technology

[0002] In the production and subsequent deep processing of steel wire, its outer surface quality is crucial. Defects such as oxide scale, rust, microcracks, or decarburized layers can severely affect the fatigue strength, corrosion resistance, and bonding performance with materials like rubber and plastics. Therefore, pretreatment through grinding and polishing is essential. Traditional grinding methods often employ fixed grinding wheels or handheld angle grinders. This approach is not only inefficient and labor-intensive but also produces highly inconsistent grinding quality, prone to uneven grinding, excessive cutting leading to wire diameter loss, or surface burns. It fails to meet the demands of modern continuous, efficient, and high-quality production. Therefore, a specialized device is needed that can automate continuous operation and ensure uniform and consistent grinding. Utility Model Content

[0003] In view of this, the present invention aims to provide a device for smoothing the outer surface of steel wire, so as to replace the operator's handheld angle grinder for grinding steel wire, and solve the problems of low production efficiency and high labor intensity in the traditional grinding process.

[0004] To achieve the above objectives, the technical solution of this utility model is implemented as follows:

[0005] A device for surface finishing of steel wire includes a first guide assembly, a housing, and a second guide assembly arranged sequentially along the direction of travel of the steel wire on a steel wire production line. The discharge end of the second guide assembly is connected to an external take-up device. A rotating shaft is rotatably installed inside the housing. A grinding assembly is fixedly connected to each end of the rotating shaft. Both the first guide assembly and the second guide assembly are used to guide the direction of travel of the steel wire, and the two grinding assemblies are used to grind the outer surface of the steel wire.

[0006] The first guide assembly has the same structure as the second guide assembly. The first guide assembly includes a lifting platform and guide wheels. The lifting platform is set on one side of the outer shell of the housing. Multiple guide wheels are located on both sides of the steel wire. The guide wheels on both sides of the steel wire are staggered. The outer surface of the steel wire is rolled to the periphery of each guide wheel. Each guide wheel is rotatably set on the upper part of the lifting platform.

[0007] Furthermore, the lifting platform includes a platform, a support rod, and a sleeve seat. The sleeve seat is located on one side of the housing, and the support rod is slidably connected inside the sleeve seat. The support rod is fixed to the relative position with the sleeve seat by a threaded nail. The platform is fixedly installed at the upper end of the support rod, and a guide wheel is rotatably installed at the upper end of the platform.

[0008] Furthermore, the grinding assembly includes a support plate, a limiting seat, and a grinding unit. The outer periphery of the support plate is rotatably connected inside the housing, and the limiting seat is fixedly installed at the other end of the support plate. The limiting seat and the grinding unit are arranged opposite to each other. The grinding unit is rotatably installed at one end of the support plate, and the outer surface of the steel wire is slidably connected to the limiting seat and the grinding unit respectively.

[0009] Furthermore, the limiting seat includes a U-shaped frame, rollers, and a metal plate. The U-shaped frame is fixedly installed on the support plate. The side wall of the U-shaped frame is provided with a feed hole along the axial direction, and the rotating shaft is provided with a through hole along the axial direction. The metal plate is slidably connected inside the U-shaped frame. The relative positions of the metal plate are fixed by pins. Multiple rollers are arranged sequentially on the metal plate along the direction of the steel wire's travel. The outer periphery of the rollers is rolled to the outer surface of the steel wire. The steel wire passes through the feed hole on the side wall of the U-shaped frame and enters the through hole in the rotating shaft.

[0010] Furthermore, the polishing unit includes two rollers and a polishing belt. Two rollers are rotatably mounted on one end of the support plate. The two rollers are arranged parallel to each other. The outer periphery of the two rollers is rolled and sleeved onto the inner side of the polishing belt. The outer periphery of the polishing belt is slidably connected to the outer surface of the steel wire.

[0011] Furthermore, the grinding unit also includes a first synchronous wheel, a second synchronous wheel, a third synchronous wheel, a sleeve, a first servo motor, a first synchronous belt, and a second synchronous belt. One end of the rotating shaft is rotatably connected to the inner ring of the sleeve. One end of the outer ring of the sleeve is fixedly fitted with the second synchronous wheel, and the other end of the outer ring of the sleeve is fixedly fitted with the third synchronous wheel. One end of each roller shaft is fixedly fitted with a first synchronous wheel. The outer periphery of each first synchronous wheel and the outer periphery of the second synchronous wheel are connected by a first synchronous belt to form a synchronous transmission structure. The outer periphery of the output shaft of the first servo motor and the outer periphery of the third synchronous wheel are connected by a second synchronous belt to form a synchronous transmission structure. The first servo motor is fixedly installed inside the housing.

[0012] Furthermore, the polishing belts of the grinding components at both ends of the rotating shaft have different specifications. The side with the steel wire traveling towards the first guide component has a smaller mesh size polishing belt, while the side with the second guide component has a larger mesh size polishing belt.

[0013] Furthermore, a second servo motor is fixedly installed inside the housing. The second servo motor is located below the rotating shaft. A fourth synchronous pulley is fixedly sleeved on the middle of the rotating shaft. The periphery of the fourth synchronous pulley and the periphery of the output shaft of the second servo motor are connected by a third synchronous belt to form a synchronous transmission structure.

[0014] Furthermore, a heat dissipation plate is provided on the lower sides of the box, and the heat dissipation plate has multiple heat dissipation holes. A sliding door is hinged to the upper sides of the box.

[0015] Compared with the prior art, the steel wire outer surface finishing device of this utility model has the following advantages:

[0016] (1) The outer surface finishing device of steel wire described in this utility model is used to grind the outer surface of steel wire, so as to replace the operator's hand-held angle grinder to grind steel wire. It solves the problems of low production efficiency and high labor intensity in the traditional grinding process, and facilitates further processing in downstream processes.

[0017] (2) The outer surface finishing device for steel wire described in this utility model is equipped with a limiting seat, which can be adapted to steel wires of different diameters. It can work continuously without changing the device, improve production efficiency, and ensure that the steel wire abuts against the polishing belt during the grinding process, thereby enhancing the grinding effect.

[0018] (3) The outer surface smoothing device of the steel wire described in this utility model is equipped with a heat dissipation plate with heat dissipation holes, which can increase the air circulation in the box and better provide heat dissipation conditions for the servo in the box.

[0019] (4) The steel wire outer surface finishing device described in this utility model first removes obvious defects such as oxide layer and burrs on the outer surface of the steel wire quickly by using a small mesh polishing belt, and then improves the surface finish by using a large mesh polishing belt. Compared with a single mesh polishing belt, it can significantly improve the surface finish of the steel wire while ensuring grinding efficiency, and meet the higher standard surface treatment requirements.

[0020] (5) The outer surface finishing device for steel wire described in this utility model is equipped with two guide components that can be raised and lowered. On the one hand, it can adapt to the steel wire conveying requirements of different heights, ensuring that the steel wire can enter the grinding area inside the box smoothly and avoid bending or jamming of the steel wire due to height deviation. On the other hand, the guide wheels arranged alternately on both sides of the steel wire form a rolling connection with the outer surface of the steel wire, which can correct the lateral deviation during the steel wire conveying process through physical limit, ensuring that the steel wire always travels along the preset path. Attached Figure Description

[0021] The accompanying drawings, which form part of this utility model, are used to provide a further understanding of the utility model. The illustrative embodiments of the utility model and their descriptions are used to explain the utility model and do not constitute an undue limitation of the utility model. In the drawings:

[0022] Figure 1 This is a schematic diagram of the overall structure of a steel wire outer surface finishing device according to an embodiment of the present invention;

[0023] Figure 2 This is a schematic diagram of the internal structure of the box as described in an embodiment of the present utility model;

[0024] Figure 3 This is a schematic diagram of the guide component described in an embodiment of the present utility model;

[0025] Figure 4This is a schematic diagram of the grinding component described in an embodiment of the present utility model;

[0026] Figure 5 This is a schematic diagram of the polishing unit described in an embodiment of the present utility model;

[0027] Figure 6 This is a schematic diagram of the sleeve described in an embodiment of the present utility model;

[0028] Figure 7 This is a schematic diagram of the external structure of the box as described in an embodiment of the present utility model.

[0029] Explanation of reference numerals in the attached figures:

[0030] 1-First guide assembly; 11-Lifting platform; 111-Tabletop; 112-Support rod; 113-Sleeve seat; 12-Guide wheel; 2-Box body; 21-Second servo motor; 22-Third synchronous belt; 23-Heat dissipation plate; 24-Sliding door; 3-Second guide assembly; 4-Rotating shaft; 41-Fourth synchronous wheel; 5-Grinding assembly; 51-Support plate; 52-Limit seat; 521-U-shaped frame; 522-Roller; 523-Metal plate; 53-Grinding unit; 531-Roller shaft; 5311-First synchronous wheel; 5312-Second synchronous wheel; 5313-Third synchronous wheel; 5314-Sleeve; 5315-First servo motor; 5316-First synchronous belt; 5317-Second synchronous belt; 532-Polishing belt. Detailed Implementation

[0031] It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0032] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0033] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0034] The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0035] like Figure 1 As shown, a device for surface finishing of steel wire includes a first guide component 1, a housing 2, and a second guide component 3 arranged sequentially along the direction of travel of the steel wire on a steel wire production line. The discharge end of the second guide component 3 is connected to an external take-up device. A rotating shaft 4 is rotatably installed inside the housing 2. A grinding component 5 is fixedly connected to each end of the rotating shaft 4. Both the first guide component 1 and the second guide component 3 are used to guide the direction of travel of the steel wire, and the two grinding components 5 are used to grind the outer surface of the steel wire.

[0036] The first guide assembly 1 and the second guide assembly 3 have the same structure. The first guide assembly 1 includes a lifting platform 11 and guide wheels 12. The lifting platform 11 is set on one side outside the housing 2. Multiple guide wheels 12 are located on both sides of the steel wire. The guide wheels 12 on both sides of the steel wire are staggered. The outer surface of the steel wire is rolled to the periphery of each guide wheel 12. Each guide wheel 12 is rotatably set on the upper end of the lifting platform 11. The outer surface polishing device of the steel wire described in this utility model is used to polish the outer surface of the steel wire to replace the operator's handheld angle grinder for polishing the steel wire. It solves the problems of low production efficiency and high labor intensity in the traditional polishing process and facilitates further processing in downstream processes.

[0037] like Figure 3 As shown, the lifting platform 11 includes a platform 111, a support rod 112, and a sleeve seat 113. The sleeve seat 113 is located on one side of the housing 2. The support rod 112 is slidably connected inside the sleeve seat 113. The support rod 112 is fixed to the relative position of the sleeve seat by a threaded nail. The platform 111 is fixedly installed on the upper end of the support rod 112. The guide wheel 12 is rotatably installed on the upper end of the platform 111. The height of the platform 111 is adjusted by sliding the support rod 112 inside the sleeve seat 113, thereby adjusting the horizontal position of the steel wire.

[0038] On the one hand, it can adapt to the steel wire conveying needs of different heights, ensuring that the steel wire can enter the grinding area inside the box 2 smoothly and avoid bending or jamming of the steel wire due to height deviation; on the other hand, the guide wheels 12 arranged alternately on both sides of the steel wire form a rolling connection with the outer surface of the steel wire, which can correct the lateral deviation in the steel wire conveying process through physical limit, ensuring that the steel wire always travels along the preset path.

[0039] like Figure 2 and Figure 4 As shown, the grinding assembly 5 includes a support plate 51, a limiting seat 52, and a grinding unit 53. The support plate 51 is rotatably connected to the outer periphery of the housing 2. The limiting seat 52 is fixedly installed at the other end of the support plate 51. The limiting seat 52 and the grinding unit 53 are arranged opposite to each other. The grinding unit 53 is rotatably installed at one end of the support plate 51. The outer surface of the steel wire is slidably connected to the limiting seat 52 and the grinding unit 53 respectively. During the operation, the rotation of the rotating shaft 4 will drive the support plate 5 and the grinding unit on it to rotate together, and the outer surface of the steel wire will be evenly ground.

[0040] like Figure 4 As shown, the limiting seat 52 includes a U-shaped frame 521, rollers 522 and a metal plate 523. The U-shaped frame 521 is fixedly installed on the support plate 51. The side wall of the U-shaped frame 521 is provided with a feed hole along the axial direction. The rotating shaft 4 is provided with a through hole along the axial direction. The metal plate 523 is slidably connected inside the U-shaped frame 521. The metal plate 523 is fixed in relative position by pins. Multiple rollers 522 are arranged sequentially on the metal plate 523 along the traveling direction of the steel wire. The outer periphery of the rollers 522 is rolled to the outer surface of the steel wire. The steel wire passes through the feed hole on the side wall of the U-shaped frame 521 and enters the through hole in the rotating shaft 4.

[0041] The steel wire passes through the feed hole on the side wall of the U-shaped frame 521 and enters the inner ring of the rotating shaft 4. The steel wire is first guided into the housing 2 by the first guide component, and then passes through the feed hole on the side wall of the U-shaped frame 521 in the limiting seat 52. At this time, multiple rollers 522 arranged on the metal plate 523 inside the U-shaped frame 521 along the direction of the steel wire will form a rolling connection with the outer surface of the steel wire. As the steel wire continues to be conveyed forward, the rollers 522 rotate synchronously around their own axis. While not hindering the movement of the steel wire, the sliding connection between the metal plate 523 and the U-shaped frame 521 ensures that the rollers 522 are always in contact with the surface of the steel wire, stably restricting the steel wire to a path coaxial with the rotating shaft 4. This provides a positioning basis for the subsequent grinding unit 53 to accurately grind the outer surface of the steel wire, and finally allows the steel wire to smoothly enter the inner ring of the rotating shaft 4 and flow to the subsequent process. The limit seat 52 is set up to accommodate steel wires of different diameters, allowing continuous operation without changing the device, thus improving production efficiency. It can also push the steel wire to abut against the polishing belt 532 during the grinding process, enhancing the grinding effect.

[0042] like Figures 3-6As shown, the grinding unit 53 also includes a first synchronous pulley 5311, a second synchronous pulley 5312, a third synchronous pulley 5313, a sleeve 5314, a first servo motor 5315, a first synchronous belt 5316, and a second synchronous belt 5317. One end of the rotating shaft 4 is rotatably connected to the inner ring of the sleeve 5314. One end of the outer ring of the sleeve 5314 is fixedly fitted with the second synchronous pulley 5312, and the other end of the outer ring of the sleeve 5314 is fixedly fitted with the third synchronous pulley 5313. One end of each roller shaft 531 is fixedly fitted with a first synchronous pulley 5311. The outer periphery of each first synchronous pulley 5311 and the outer periphery of the second synchronous pulley 5312 are connected by the first synchronous belt 5316 to form a synchronous transmission structure. The first servo motor 5315 outputs... The outer periphery of the output shaft and the outer periphery of the third synchronous pulley 5313 are connected by the second synchronous belt 5317 to form a synchronous transmission structure. The first servo motor 5315 is fixedly installed in the housing 2. The first servo motor 5315 is existing technology, and its model is SGMVV-2BD3B61. When the controller is turned on, the controller controls the first servo motor 5315 to rotate. Through the second synchronous belt 5317 and the third synchronous pulley 5313, the sleeve 5314 is driven to rotate, which in turn drives the second synchronous pulley 5312 to rotate. Under the action of the first synchronous belt 5316, the first synchronous pulley 5311 is driven to rotate, which in turn drives the two rollers 531 to rotate and drives the polishing belt 532 to move, thereby polishing the surface of the steel wire.

[0043] The second servo motor 21 drives the rotating shaft 4 to rotate via the second synchronous belt 22. The fourth synchronous wheel 41, which is fixed at one end of the rotating shaft 4, rotates synchronously. In turn, the first synchronous wheel 5311 at one end of the two roller shafts 531 in the grinding unit 53 is driven to rotate via the first synchronous belt 5316, so that the two parallel roller shafts 531 rotate synchronously. Since the polishing belt 532 is rolled around the outer periphery of the two roller shafts 531, the rotation of the roller shafts 531 will drive the polishing belt 532 to move. At this time, the steel wire, which is positioned by the limit seat 52 and coaxial with the rotating shaft 4, has its outer surface in close contact with the outer periphery of the polishing belt 532. The rotating shaft 4, which can rotate, will also drive the grinding unit 53 to rotate around the steel wire axis, and evenly grind the outer surface of the steel wire.

[0044] like Figure 2 As shown, the polishing belts 532 of the grinding components 5 at both ends of the rotating shaft 4 have different specifications. The side of the steel wire traveling closer to the first guide component 1 has a smaller mesh polishing belt 532, while the side of the steel wire closer to the second guide component 3 has a larger mesh polishing belt 532. The smaller mesh polishing belt is used to quickly remove obvious defects such as oxide layer and burrs from the outer surface of the steel wire, and then the larger mesh polishing belt is used to improve the surface finish. Compared with a single mesh polishing belt, it can significantly improve the surface finish of the steel wire while ensuring grinding efficiency, thus meeting higher surface treatment requirements.

[0045] like Figure 2As shown, a second servo motor 21 is fixedly installed inside the housing 2. The second servo motor 21 is located below the rotating shaft 4. A third synchronous pulley 43 is fixedly sleeved in the middle of the rotating shaft 4. The outer periphery of the third synchronous pulley 43 and the outer periphery of the output shaft of the second servo motor 21 are connected by a second synchronous belt 22 to form a synchronous transmission structure. The second servo motor 21 is existing technology, and the model of the second servo motor 21 is SGMVV-2BD3B61. When the controller is turned on, the controller drives the second servo motor 21 to start. The second servo motor 21 drives the rotating shaft 4 to rotate through the second synchronous belt 22, which in turn drives the grinding assembly 5 to rotate around the steel wire axis, so as to uniformly grind the outer surface of the steel wire.

[0046] like Figure 7 As shown, a heat dissipation plate 23 is provided on the lower sides of the box 2. The heat dissipation plate 23 has multiple heat dissipation holes. A sliding door 24 is hinged to the upper sides of the box 2. The heat dissipation plate 23 with heat dissipation holes can increase the airflow in the box 2 and better provide heat dissipation conditions for the servo in the box 2. The sliding door 24 is also provided for easy inspection and maintenance.

[0047] The working process of a steel wire outer surface finishing device:

[0048] After the external take-up device is started, the steel wire first enters the first guide assembly 1 along the production line's travel direction. Guided and positioned by the staggered guide wheels 12 on the lifting platform 11, it smoothly enters the housing 2. Inside the housing, the second servo motor 21 drives the rotating shaft 4 to rotate via the second synchronous belt 22. The grinding assemblies 5 at both ends of the rotating shaft 4 operate synchronously. Simultaneously, the steel wire passes through the inlet hole of the U-shaped frame 521 in the limiting seat 52. Under the limiting action of the rollers 522 on the metal plate 523, it maintains a path coaxial with the rotating shaft 4. Subsequently, the steel wire sequentially interacts with the grinding assemblies 5 of the two grinding assemblies 5. When the grinding unit 53 contacts, the second servo motor 21 drives the rotating shaft 4 to rotate, and drives the grinding assembly 5 to rotate around the periphery of the steel wire. At this time, the first servo motor 5315 drives the sleeve 5314 to rotate, and drives the two roller shafts 531 to rotate, so that the polishing belt 532 circulates. First, it is initially ground by the polishing belt with a smaller mesh size near the first guide assembly 1, and then finely ground by the polishing belt with a larger mesh size near the second guide assembly 3. After the steel wire is ground, it continues to move forward, guided by the second guide assembly 3, and finally enters the external take-up device to complete the winding.

[0049] The control method in this embodiment is controlled by a controller. The controller circuit can be implemented by simple programming by those skilled in the art. The power supply is also common knowledge in the art. Furthermore, this document is mainly used to protect mechanical devices, and the control method and circuit connection will not be explained in detail here.

[0050] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A device for surface finishing of steel wire, characterized in that: The steel wire production line includes a first guide assembly (1), a box (2), and a second guide assembly (3) arranged sequentially along the direction of the steel wire's travel. The discharge end of the second guide assembly (3) is connected to an external take-up device. A rotating shaft (4) is rotatably installed inside the box (2). A grinding assembly (5) is fixedly connected to each end of the rotating shaft (4). The first guide assembly (1) and the second guide assembly (3) are both used to guide the direction of the steel wire's travel, and the two grinding assemblies (5) are used to grind the outer surface of the steel wire. The first guide assembly (1) has the same structure as the second guide assembly (3). The first guide assembly (1) includes a lifting platform (11) and guide wheels (12). The lifting platform (11) is set on one side outside the box (2). Multiple guide wheels (12) are located on both sides of the steel wire. The guide wheels (12) on both sides of the steel wire are arranged in an alternating manner. The outer surface of the steel wire is rolled to the periphery of each guide wheel (12). Each guide wheel (12) is rotatably set on the upper end of the lifting platform (11).

2. The device for surface finishing of steel wire according to claim 1, characterized in that: The lifting platform (11) includes a platform (111), a support rod (112), and a sleeve seat (113). The sleeve seat (113) is located on one side of the housing (2). The support rod (112) is slidably connected inside the sleeve seat (113). The support rod (112) is fixed to the relative position of the sleeve seat (113) by a threaded nail. The platform (111) is fixedly installed on the upper end of the support rod (112). The guide wheel (12) is rotatably installed on the upper end of the platform (111).

3. The device for surface finishing of steel wire according to claim 1, characterized in that: The grinding assembly (5) includes a support plate (51), a limiting seat (52), and a grinding unit (53). The support plate (51) is rotatably connected to the outer periphery of the housing (2). The limiting seat (52) is fixedly installed at the other end of the support plate (51). The limiting seat (52) and the grinding unit (53) are arranged opposite to each other. The grinding unit (53) is rotatably installed at one end of the support plate (51). The outer surface of the steel wire is slidably connected to the limiting seat (52) and the grinding unit (53).

4. The device for surface finishing of steel wire according to claim 3, characterized in that: The limiting seat (52) includes a U-shaped frame (521), rollers (522) and a metal plate (523). The U-shaped frame (521) is fixedly installed on the support plate (51). The side wall of the U-shaped frame (521) is provided with a feed hole along the axial direction. The rotating shaft (4) is provided with a through hole along the axial direction. The metal plate (523) is slidably connected inside the U-shaped frame (521). The metal plate (523) is fixed in relative position by pins. Multiple rollers (522) are arranged sequentially on the metal plate (523) along the direction of the steel wire. The outer periphery of the rollers (522) is rolled to the outer surface of the steel wire. The steel wire passes through the feed hole on the side wall of the U-shaped frame (521) and enters the through hole in the rotating shaft (4).

5. The device for surface finishing of steel wire according to claim 3, characterized in that: The grinding unit (53) includes two rollers (531) and a polishing belt (532). Two rollers (531) are rotatably arranged at one end of the support plate (51). The two rollers (531) are arranged parallel to each other. The outer periphery of the two rollers (531) is rolled and sleeved on the inner side of the polishing belt (532). The outer periphery of the polishing belt (532) is slidably connected to the outer surface of the steel wire.

6. The device for surface finishing of steel wire according to claim 5, characterized in that: The grinding unit (53) also includes a first synchronous pulley (5311), a second synchronous pulley (5312), a third synchronous pulley (5313), a sleeve (5314), a first servo motor (5315), a first synchronous belt (5316), and a second synchronous belt (5317). One end of the rotating shaft (4) is rotatably connected to the inner ring of the sleeve (5314), one end of the outer ring of the sleeve (5314) is fixedly sleeved with the second synchronous pulley (5312), and the other end of the outer ring of the sleeve (5314) is fixedly sleeved with the third synchronous pulley. (5313), one end of each roller (531) is fixedly sleeved with a first synchronous wheel (5311). The periphery of each first synchronous wheel (5311) and the periphery of the second synchronous wheel (5312) are connected by a first synchronous belt (5316) to form a synchronous transmission structure. The periphery of the output shaft of the first servo motor (5315) and the periphery of the third synchronous wheel (5313) are connected by a second synchronous belt (5317) to form a synchronous transmission structure. The first servo motor (5315) is fixedly installed inside the housing (2).

7. The device for surface finishing of steel wire according to claim 5, characterized in that: The polishing belts (532) of the grinding components (5) at both ends of the rotating shaft (4) have different specifications. The side of the steel wire traveling closer to the first guide component (1) has a smaller mesh polishing belt (532), and the side of the steel wire traveling closer to the second guide component (3) has a larger mesh polishing belt (532).

8. The device for surface finishing of steel wire according to claim 1, characterized in that: The second servo motor (21) is fixedly installed inside the housing (2). The second servo motor (21) is located below the rotating shaft (4). The fourth synchronous wheel (41) is fixedly sleeved in the middle of the rotating shaft (4). The outer periphery of the fourth synchronous wheel (41) and the outer periphery of the output shaft of the second servo motor (21) are connected by a third synchronous belt (22) to form a synchronous transmission structure.

9. The device for surface finishing of steel wire according to claim 1, characterized in that: A heat dissipation plate (23) is installed on the lower sides of the box (2), and multiple heat dissipation holes are provided on the heat dissipation plate (23). A sliding door (24) is hinged on the upper sides of the box (2).

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