A high carbon steel strip pre-processing derusting slitting system and method

Abstract

This invention relates to the field of precision machining technology, specifically to a pre-processing rust removal and slitting system and method for high-carbon steel bars. The system includes a dust collection pump, a light reflection detection device, and a cutting assembly installed within the machine body. The light reflection detection device is connected to a pulsed laser rust remover via wires. The output end of the pulsed laser rust remover is connected to a light rust removal assembly. The light rust removal assembly includes an electric push rod, a rolling ring, an adjusting ring, a linkage rod, a wire plate, and a pressure sensor. The adjusting ring is slidably connected to the rolling ring. A pressure sensor is installed inside the wire plate, which is slidably connected to the adjusting ring. Both ends of the linkage rod are rotatably connected to the wire plate and the rolling ring, respectively. The electric push rod is signal-connected to the pressure sensor. The light reflection detection device identifies the rust level on the surface of the high-carbon steel bar. Combined with targeted removal by the pulsed laser and fine treatment by the light rust removal assembly, the entire system precisely removes rust and avoids damage to the base material through real-time dynamic adjustment of the mechanical rust removal contact pressure.

Description

Technical Field

[0001] This invention relates to the field of precision machining technology, specifically to a pre-processing, rust removal, and slitting system and method for high-carbon steel bars. Background Technology

[0002] High-carbon steel bars, due to their high carbon content, high hardness, and excellent wear resistance, are widely used in core industrial fields such as spring manufacturing, bearing processing, cutting tools, and high-strength fasteners.

[0003] Before using high-carbon steel bars, it is usually necessary to remove rust and cut them. Currently, the most common rust removal operations are to remove the rust layer by physical grinding, which involves using a wire wheel to rotate and rub the surface of the high-carbon steel at high speed or using a belt sander to physically sandblast and grind the surface of the high-carbon steel, thereby causing the rust layer to fall off and completing the rust removal operation.

[0004] However, although the above methods can effectively remove rust, the degree of rust varies in different locations on the surface of high carbon steel. Using these methods exclusively can easily lead to damage to the base material surface in low-rust areas during the grinding process, while uneven grinding in highly rusted areas can further aggravate the damage to the high carbon steel strips. In addition, some equipment has a fixed grinding pressure, which makes it difficult to quickly remove rust and cut high carbon steel strips. Summary of the Invention

[0005] The purpose of this invention is to provide a high-carbon steel bar pre-processing rust removal and slitting system and method to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a high-carbon steel bar pre-processing rust removal and slitting system, comprising a dust collection pump, a light reflection detection device and a cutting assembly installed in the machine body, wherein the light reflection detection device is connected to a pulsed laser rust remover via a wire, the output end of the pulsed laser rust remover is connected to a light rust removal assembly, and the output end of the light rust removal assembly is connected to the input end of the cutting assembly;

[0007] The light rust removal assembly includes: an electric push rod, a rolling ring, an adjusting ring, a linkage rod, a wire plate, and a pressure sensor. The adjusting ring is slidably connected to the rolling ring. A pressure sensor is installed inside the wire plate. The wire plate is slidably connected to the adjusting ring. Both ends of the linkage rod are rotatably connected to the wire plate and the rolling ring, respectively. The electric push rod is signal-connected to the pressure sensor.

[0008] Preferably, the dust collection pump is located on one side of the machine body, a drive motor is fixedly connected inside the machine body, an output rod is fixedly connected to the output end of the drive motor, and a pretreatment module, a light reflection detection device, a pulsed laser rust remover, a light rust removal component and a cutting component are arranged sequentially inside the machine body along the steel bar feeding direction, and all of them are fixedly connected to the machine body.

[0009] Preferably, the pretreatment module includes a cleaning roller and a gear. Four cleaning rollers are evenly arranged. A slider is fixedly connected to both ends of the cleaning roller. A rotating ring is slidably connected to both ends of the cleaning roller through the slider. The rotating ring is rotatably connected to the pretreatment module through a bearing. The slider is T-shaped and a spring is fixedly connected to its upper end. One end of the spring is fixedly connected to the slider and the other end is fixedly connected to the rotating ring. In the initial state, the spring is in a compressed state.

[0010] Preferably, the two rotating rings are arranged symmetrically, one side of which is fixedly connected to gear one, gear one is meshed with gear two, and an input rod is fixedly connected to the surface of gear two. The input rod is tensioned and connected to the output rod through a pulley.

[0011] Preferably, one end of the rolling ring is rotatably connected to the light rust removal component via a bearing, the other end passes through the light rust removal component, and is tensioned to the output rod via a pulley. The adjusting ring is slidably connected to the end of the rolling ring near the pulsed laser rust remover.

[0012] Preferably, the light rust removal component is fixedly connected to an electric push rod, the output end of which is fixedly connected to an outer ring. The inner wall of the outer ring is rotatably connected to an adjusting ring via a bearing. Four evenly arranged steel wire plates are slidably connected inside the adjusting ring. One end of each steel wire plate is hinged to one end of a linkage rod, and the other end of the linkage rod is hinged to a rolling ring.

[0013] Preferably, the cutting assembly includes a fixing member, a contact switch sensor, a cutting blade, and an electric clamp. A sliding rod is fixedly connected to the surface of the fixing member, and the sliding rod is slidably connected to a light rust removal component. A sliding groove is provided inside the fixing member, and a guide rod is slidably connected in the sliding groove. One end of the guide rod passes through the fixing member and is fixedly connected to a support plate. A second spring is fixedly connected to the other end of the guide rod, and the other end of the second spring is fixedly connected to the fixing member. In the initial state, the second spring is in a compressed state. A contact switch sensor is fixedly connected to the surface of the fixing member.

[0014] Preferably, the cutting blade is slidably connected to the light rust removal component, and an electric clamp is fixedly connected to the side of the light rust removal component near the fixing member.

[0015] Preferably, both the pretreatment module and the light rust removal component have dust collection troughs at their bottom ends, and both dust collection troughs are connected to the dust collection pump through conduits.

[0016] A method for pre-processing, rust removal, and slitting of high-carbon steel bars is also disclosed, including the following steps:

[0017] Step 1: The steel bar enters the pretreatment module. Under the pressure of spring 1, the cleaning roller adheres to the surface of the steel bar and rotates with the rotating ring to initially remove surface dust and loose rust. The dust collection pump simultaneously sucks away the dust.

[0018] Step 2: The steel bar passes through a light reflection detection device. By observing the changes in the intensity of light reflected from the steel bar surface, the location and extent of rust are determined. The detection signal is simultaneously transmitted to the pulsed laser rust remover. Based on the detection data, the pulsed laser rust remover selectively emits laser light on severely rusted areas to peel off the thicker rust layer, while simultaneously transmitting the data to the light rust removal component.

[0019] Step 3: The steel bar enters the light rust removal component. The roller is driven by the drive motor to rotate and drive the steel wire plate to rotate synchronously. The electric push rod pushes the adjusting ring to move axially through the outer ring, and the steel wire plate slides radially through the linkage rod, thereby controlling the contact pressure. The pressure sensor monitors the contact force between the steel wire plate and the steel bar in real time and synchronously feeds back to the electric push rod to maintain the optimal rust removal pressure range.

[0020] Step 4: The steel bar advances and pushes against the support plate of the cutting assembly, thereby compressing spring 2 until the support plate triggers the contact switch sensor. The sensor outputs a signal to control the electric clamp to clamp the steel bar. At the same time, the cutting blade slides to complete the cutting operation. After cutting, spring 2 returns to its original position, waiting for the next high-carbon steel bar to be fed.

[0021] Compared with the prior art, the beneficial effects of the present invention are: 1. By identifying the rust level on the surface of high carbon steel strips through a light reflection detection device, and combining it with pulsed laser targeted removal and light rust removal components for fine treatment, the rust on the surface of high carbon steel strips can be accurately removed, thereby avoiding damage to the base material;

[0022] 2. A closed-loop pressure control system is formed by the pressure sensor built into the wire plate and the electric push rod, thereby realizing real-time dynamic adjustment of the mechanical rust removal contact pressure, which ensures efficient rust removal while protecting the base material from excessive wear. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0024] Figure 2 This is a schematic diagram of the internal structure of the body of the present invention;

[0025] Figure 3 This is a schematic diagram of the preprocessing module structure of the present invention;

[0026] Figure 4 This is a schematic diagram of the structure of the mild rust removal component of the present invention;

[0027] Figure 5 This is a schematic diagram of the regulating ring structure of the present invention;

[0028] Figure 6 This is a schematic diagram of the cutting component structure of the present invention;

[0029] Figure 7 This is a schematic diagram of the internal structure of the fastener of the present invention;

[0030] Figure 8 This is a schematic diagram of the workflow of the present invention.

[0031] In the diagram: 1. Machine body; 2. Dust pump; 3. Drive motor; 4. Pulsed laser rust remover; 5. Pre-treatment module; 51. Input rod; 52. Gear 1; 53. Gear 2; 54. Rotating ring; 55. Cleaning roller; 56. Slider; 57. Spring 1; 6. Light reflection detection device; 7. Light rust removal assembly; 71. Rolling ring; 72. Adjusting ring; 73. Wire plate; 74. Linkage rod; 75. Electric push rod; 76. Outer ring; 77. Pressure sensor; 8. Cutting assembly; 81. Slide rod; 82. Fixing component; 83. Contact switch sensor; 84. Slide groove; 85. Spring 2; 86. Guide rod; 87. Support plate; 88. Cutting blade; 89. Electric clamp; 9. Dust collection tank; 10. Output rod. Detailed Implementation

[0032] 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.

[0033] Please see Figure 1-8 This invention provides a technical solution: a high-carbon steel bar pre-processing rust removal and slitting system, including a dust pump 2, a light reflection detection device 6, and a cutting assembly 8 installed inside a machine body 1. The dust pump 2 is located on one side of the machine body 1. A drive motor 3 is fixedly connected inside the machine body 1. An output rod 10 is fixedly connected to the output end of the drive motor 3. The output rod 10 is driven to rotate by the drive motor 3. Inside the machine body 1, along the steel bar feeding direction, a pre-processing module 5, a light reflection detection device 6, a pulsed laser rust remover 4, a light rust removal assembly 7, and a cutting assembly 8 are arranged sequentially, and all are fixedly connected to the machine body 1 and are coaxially arranged as a whole, thereby facilitating the feeding of high-carbon steel bars.

[0034] The pretreatment module 5 includes cleaning rollers 55 and gears 52. Four cleaning rollers 55 are evenly arranged. Slider 56 is fixedly connected to both ends of each cleaning roller 55. The surface of the cleaning roller 55 is covered with nylon abrasive filaments to remove dust and rust from the surface of the high-carbon steel strip while protecting the base material. Rotating rings 54 are slidably connected to both ends of the cleaning roller 55 through the sliders 56. The rotating rings 54 are rotatably connected to the housing of the pretreatment module 5 through bearings. The sliders 56 are T-shaped, and springs 57 are fixedly connected to their upper ends. One end of the springs 57 is fixedly connected to the sliders 56, and the other end is fixedly connected to the rotating rings 54. In the initial state, the springs 57 are in a compressed state, providing continuous preload to the sliders 56, thereby ensuring that the cleaning rollers 55 can make close contact with the surface of the high-carbon steel strip. At the same time, when the size of the high-carbon steel strip changes, the contraction of the springs 57 can also ensure normal feeding and processing. Two rotating rings 54 are symmetrically arranged. One side of one of the rotating rings 54 is fixedly connected to gear 1 52. Gear 1 52 is meshed with gear 2 53. An input rod 51 is fixedly connected to the surface of gear 2 53. Gear 2 53 is rotatably connected to the housing of the pretreatment module 5 through a bearing. The input rod 51 is tensioned to the output rod 10 through a pulley. When the output rod 10 rotates, it can drive gear 1 52 to rotate through the belt. The cleaning roller 55 starts to revolve around the high carbon steel strip as the axis.

[0035] The optical reflection detection device 6 employs an industrial-grade laser diffuse reflection detection module. It can identify the location, area, and depth of rust on the high-carbon steel surface in real time by detecting the difference in intensity between specular and diffuse reflection light on the steel strip surface. Its signal is connected to the control module of the pulsed laser rust remover 4 and the control module of the electric push rod 75 of the light rust removal component 7, thus achieving synchronous linkage of detection data. Both the steel strip input and output ends of the optical reflection detection device 6 are equipped with light-shielding curtains to avoid interference from external light. The pulsed laser rust remover 4 uses a pulsed fiber laser. The laser emission position, power, and scanning range can be adjusted using data from the optical reflection detection device 6, facilitating targeted removal of heavily rusted areas. It also features an internal air-cooling device, allowing the rust removed to be sucked out through the negative pressure conduit of the dust collection pump 2. The temperature of the steel base material in the laser irradiation area is less than 200℃, thus preventing metallographic transformation of the high-carbon steel base material.

[0036] The light rust removal component 7 is mainly used to remove small amounts of rust from the surface of high-carbon steel. It mainly includes a rolling ring 71. One end of the rolling ring 71 is rotatably connected to the outer shell of the light rust removal component 7 via a bearing, and the other end passes through the light rust removal component 7 and is tensioned to the output rod 10 via a pulley. When the output rod 10 rotates, it drives the rolling ring 71 to rotate via the pulley. An adjusting ring 72 is slidably connected to the end of the rolling ring 71 near the pulsed laser rust remover 4. The rolling ring 71 limits and guides the adjusting ring 72, and its rotation drives the adjusting ring 72 to rotate synchronously. An electric push rod 75 is fixedly connected to the inner wall of the outer shell of the light rust removal component 7. An outer ring 76 is fixedly connected to the output end of the electric push rod 75. The electric push rod 75 drives the outer ring 76 to move horizontally. The inner wall of the outer ring 76 is rotatably connected to the adjusting ring 72 via a bearing. When the outer ring 76 moves, it drives the adjusting ring 72 to slide along the rolling ring 71. Four evenly spaced steel wire plates 73 are slidably connected within the adjusting ring 72 via protrusions. The working surface of each steel wire plate 73 is inlaid with hard alloy steel wire. The other end of each steel wire plate 73 is hinged to one end of a linkage rod 74, and the other end of the linkage rod 74 is hinged to a rolling ring 71. A pressure sensor 77 is installed within each steel wire plate 73. The pressure sensor 77 monitors the contact pressure between the steel wire plate 73 and the surface of the steel strip. The pressure sensor 77 is connected to an electric push rod 75 via a signal connection to prevent excessive pressure from damaging the base material. It also monitors the wear condition of the steel wire plate 73. The back of each steel wire plate 73 is elastically connected to the adjusting ring 72 via a spring, facilitating the reset of the steel wire plate 73. The pressure sensor 77 transmits signals through a conductive slip ring.

[0037] The cutting assembly 8 is used for cutting steel bars to a fixed length. It mainly includes a fixing member 82, a contact switch sensor 83, a cutting blade 88, and an electric clamp 89. A sliding rod 81 is fixedly connected to the surface of the fixing member 82. The sliding rod 81 is slidably connected to the outer shell of the light rust removal assembly 7. The cutting length can be adjusted by the relative sliding of the sliding rod 81 and the outer shell of the light rust removal assembly 7. The sliding distance can be controlled by the drive assembly inside the machine body 1. A sliding groove 84 is opened in the fixing member 82. A guide rod 86 is slidably connected in the sliding groove 84. One end of the guide rod 86 passes through the fixing member 82 and is fixedly connected to a support plate 87. The support plate 87 is arc-shaped to facilitate the support of the high carbon steel bar. A second spring 85 is fixedly connected to the other end of the guide rod 86. The other end of the second spring 85 is fixedly connected to the fixing member 82. In the initial state, the second spring 85 is in a compressed state. The second spring 85 can provide a preload force to the guide rod 86 to facilitate the reset of the support plate 87. A contact switch sensor 83 is fixedly connected to the surface of the fastener 82, and a contact point matching the contact switch sensor 83 is provided on the back of the support plate 87.

[0038] The cutting blade 88 is slidably connected to the light rust removal component 7. When the high-speed rotating cutting blade 88 slides horizontally, it can cut the high carbon steel strip. The side of the light rust removal component 7 near the fixing part 82 is fixedly connected to the electric clamp 89, which can fix the high carbon steel strip. The cutting blade 88 is located between the electric clamp 89 and the outer shell of the light rust removal component 7. A flip-plate sorting mechanism is provided below the cutting component 8 to facilitate the separate separation of the three-level areas.

[0039] Both the pretreatment module 5 and the light rust removal component 7 have dust collection tanks 9 at their bottom ends. The two dust collection tanks 9 are connected by the negative pressure conduit of the dust pump 2, so as to facilitate the collection of the removed rust and other debris.

[0040] A method for pre-processing, rust removal, and slitting of high-carbon steel bars includes the following steps:

[0041] Step 1: After the steel bar is straightened, it enters the pretreatment module 5. At this time, the drive motor 3 starts and drives the rotating ring 54 and the roller ring 71 to rotate via the belt. The cleaning roller 55 is pressed against the surface of the steel bar under the pressure of the spring 57 and rotates with the rotating ring 54. The cleaning roller 55 revolves around the circumference of the steel bar. At the same time, the cleaning roller 55 rotates on its own axis due to friction with the surface of the steel bar. This initially removes the floating dust and loose rust layer on the surface of the high carbon steel bar. Meanwhile, the dust and rust generated during cleaning are sucked away in real time by the dust pump 2 and the dust collection tank 9 at the bottom of the pretreatment module 5 to prevent dust from adhering to the surface of the steel bar.

[0042] Step Two: The pre-treated steel strip enters the optical reflection detection device 6. The device emits a detection laser onto the steel strip surface. By observing changes in the intensity of reflected light, the location, area, and depth of the rusted area are identified in real time, thus classifying the rusted area into three levels: Level 1, Level 2, and Level 3. Level 1 is considered light rust, with a diffuse reflectance between 20% and 65%, requiring only cleaning with wire mesh 73. Level 2 is moderate rust, with a diffuse reflectance between 65% and 90%, requiring directional rust removal with a laser followed by secondary treatment with wire mesh 73. Level 3 is heavy rust due to damage to the base material, with a diffuse reflectance exceeding 90%. In this area of ​​the high-carbon steel bar, discrete pitting corrosion pits with depths exceeding the safety margin have formed. These pits are not merely a layer of surface oxide, but rather permanent geometric defects in the base metal. Even if the surface rust layer is removed, deep-hole or honeycomb-like pits will still exist. These pits will become stress concentration points during subsequent cold working, leading to direct workpiece fracture or fatal defects such as cracks in the final product. Therefore, the base material in this area can be determined to no longer meet the process parameters and is unusable. In this case, rust removal in this area can be abandoned, and the material can be directly cut into the cutting assembly 8 to avoid wasting resources. The light reflection detection device 6 synchronously transmits the detection signal to the pulsed laser rust remover 4 and the processor in the machine body 1. Based on the detection data, the pulsed laser rust remover 4 and the machine body 1 selectively emit lasers to the severely rusted areas on the surface of the high-carbon steel bar to peel off the thicker rust layer, while simultaneously transmitting the data to the light rust removal assembly 7.

[0043] Step 3: The steel bar enters the light rust removal component 7. The rolling ring 71 is driven by the drive motor 3 to rotate, which in turn drives the wire plate 73 to rotate synchronously. During this process, the electric push rod 75 pushes the adjusting ring 72 to move axially through the outer ring 76, and the wire plate 73 slides radially through the linkage rod 74, thereby controlling the contact pressure. The pressure sensor 77 monitors the contact force between the wire plate 73 and the steel bar in real time and synchronously feeds back to the electric push rod 75. The electric push rod 75 adjusts the extension and retraction amount according to the data of the pressure sensor 77, thereby maintaining a constant optimal rust removal pressure range. The optimal rust removal range can be determined before operation by selecting a standard high-carbon steel rust sample, gradually increasing the radial pressure of the wire plate 73 until the wire begins to scratch the surface of the base material, and recording the pressure value at this time as the upper limit of the range threshold. Then, the pressure is gradually reduced until the rust removal efficiency does not meet the preset requirements, and the pressure value at this time is recorded as the lower limit of the range threshold. This is how the optimal rust removal range is obtained. During the process, dust and other particles are sucked out by the dust collection pump 2. When the tertiary rust area enters the light rust removal component 7, the electric push rod 75 drives the adjusting ring 72 to move significantly, so that the wire plate 73 avoids the high carbon steel strip and does not come into contact with the surface of the steel strip.

[0044] Step 4: The steel bar advances and pushes against the support plate 87 of the cutting assembly 8, thereby compressing the second spring 85 until the support plate 87 triggers the contact switch sensor 83. The contact switch sensor 83 outputs a signal to control the electric clamp 89 to clamp the steel bar, while the cutting blade 88 slides to complete the cutting operation. After cutting, the clamp resets, the high-carbon steel bar falls, the second spring 85 resets, and it waits for the next bar to be fed. During the cutting process, the high-carbon steel bar feed is paused. At the same time, when it is necessary to adjust the cutting length or enter the third-level rust area, the slide bar 81 automatically slides to adjust the distance between the contact switch sensor 83 and the light rust removal assembly 7 to complete the cutting length adjustment.

[0045] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A pre-processing, rust removal, and slitting system for high-carbon steel bars, characterized in that: Includes a dust pump (2), a light reflection detection device (6), and a cutting assembly (8) installed in the body (1). The light reflection detection device (6) is connected to a pulsed laser rust remover (4) via a wire. The output end of the pulsed laser rust remover (4) is connected to a light rust removal assembly (7). The output end of the light rust removal assembly (7) is connected to the input end of the cutting assembly (8). The light rust removal component (7) includes: an electric push rod (75), a rolling ring (71), an adjusting ring (72), a linkage rod (74), a wire plate (73), and a pressure sensor (77). The adjusting ring (72) is slidably connected to the rolling ring (71). The pressure sensor (77) is installed inside the wire plate (73). The wire plate (73) is slidably connected to the adjusting ring (72). The two ends of the linkage rod (74) are rotatably connected to the wire plate (73) and the rolling ring (71), respectively. The electric push rod (75) is signal connected to the pressure sensor (77).

2. The high-carbon steel bar pre-processing rust removal and slitting system according to claim 1, characterized in that: The dust collection pump (2) is located on one side of the machine body (1). A drive motor (3) is fixedly connected inside the machine body (1). An output rod (10) is fixedly connected to the output end of the drive motor (3). A pretreatment module (5), a light reflection detection device (6), a pulse laser rust remover (4), a light rust removal component (7), and a cutting component (8) are arranged sequentially inside the machine body (1) along the steel bar feeding direction. All of them are fixedly connected to the machine body (1).

3. The high-carbon steel bar pre-processing rust removal and slitting system according to claim 2, characterized in that: The pretreatment module (5) includes a cleaning roller (55) and a gear (52). Four cleaning rollers (55) are evenly arranged. A slider (56) is fixedly connected to both ends of the cleaning roller (55). A rotating ring (54) is slidably connected to both ends of the cleaning roller (55) through the slider (56). The rotating ring (54) is rotatably connected to the pretreatment module (5) through a bearing. The slider (56) is T-shaped, and a spring (57) is fixedly connected to its upper end. One end of the spring (57) is fixedly connected to the slider (56), and the other end is fixedly connected to the rotating ring (54). In the initial state, the spring (57) is in a compressed state.

4. The high-carbon steel bar pre-processing rust removal and slitting system according to claim 3, characterized in that: The two rotating rings (54) are symmetrically arranged. One side of one of the rotating rings (54) is fixedly connected to gear one (52). Gear one (52) is meshed with gear two (53). An input rod (51) is fixedly connected to the surface of gear two (53). The input rod (51) is tensioned to the output rod (10) through a pulley.

5. The high-carbon steel bar pre-processing rust removal and slitting system according to claim 4, characterized in that: One end of the rolling ring (71) is rotatably connected to the light rust removal component (7) via a bearing, and the other end passes through the light rust removal component (7) and is tensioned to the output rod (10) via a pulley. The adjusting ring (72) is slidably connected to the end of the rolling ring (71) near the pulse laser rust remover (4).

6. The high-carbon steel bar pre-processing rust removal and slitting system according to claim 1, characterized in that: The light rust removal component (7) is fixedly connected to an electric push rod (75). The output end of the electric push rod (75) is fixedly connected to an outer ring (76). The inner wall of the outer ring (76) is rotatably connected to an adjusting ring (72) through a bearing. Four evenly arranged steel wire plates (73) are slidably connected inside the adjusting ring (72). One end of the steel wire plate (73) is hinged to one end of the linkage rod (74), and the other end of the linkage rod (74) is hinged to the rolling ring (71).

7. The high-carbon steel bar pre-processing rust removal and slitting system according to claim 1, characterized in that: The cutting assembly (8) includes a fixing member (82), a contact switch sensor (83), a cutting blade (88), and an electric clamp (89). A slide rod (81) is fixedly connected to the surface of the fixing member (82). The slide rod (81) is slidably connected to the light rust removal assembly (7). A groove (84) is provided in the fixing member (82). A guide rod (86) is slidably connected in the groove (84). One end of the guide rod (86) passes through the fixing member (82) and is fixedly connected to a support plate (87). The other end of the guide rod (86) is fixedly connected to a second spring (85). The other end of the second spring (85) is fixedly connected to the fixing member (82). In the initial state, the second spring (85) is in a compressed state. A contact switch sensor (83) is fixedly connected to the surface of the fixing member (82).

8. The high-carbon steel bar pre-processing rust removal and slitting system according to claim 7, characterized in that: The cutting blade (88) is slidably connected to the light rust removal assembly (7), and the light rust removal assembly (7) is fixedly connected to an electric clamp (89) on the side near the fixing member (82).

9. The high-carbon steel bar pre-processing rust removal and slitting system according to claim 1, characterized in that: The pretreatment module (5) and the light rust removal component (7) are both provided with dust collection tanks (9) at their bottom ends. Both dust collection tanks (9) are connected to the dust collection pump (2) through conduits.

10. A method for pre-processing, rust removal, and slitting of high-carbon steel bars, based on the high-carbon steel bar pre-processing, rust removal, and slitting system described in any one of claims 1 to 9, characterized in that, Includes the following steps: Step 1: The steel bar enters the pretreatment module (5). The cleaning roller (55) adheres to the surface of the steel bar under the pressure of spring 1 (57) and rotates with the rotating ring (54) to initially remove surface dust and loose rust layer. The dust collection pump (2) simultaneously sucks away the dust. Step 2: The steel bar passes through the light reflection detection device (6). By observing the change in the intensity of the reflected light on the surface of the steel bar, the location and degree of rust are determined. The detection signal is synchronously transmitted to the pulsed laser rust remover (4). Based on the detection data, the pulsed laser rust remover (4) selectively emits lasers to the severely rusted areas to peel off the thicker rust layer. At the same time, the data is transmitted to the light rust removal component (7). Step 3: The steel bar enters the light rust removal component (7). The roller ring (71) is driven to rotate by the drive motor (3) and drives the steel wire plate (73) to rotate synchronously. The electric push rod (75) pushes the adjusting ring (72) to move axially through the outer ring (76), and the steel wire plate (73) slides radially through the linkage rod (74), thereby controlling the contact pressure. The pressure sensor (77) monitors the contact force between the steel wire plate (73) and the steel bar in real time, and synchronously feeds back the adjustment to the electric push rod (75) to maintain the optimal rust removal pressure range constant. Step 4: The steel bar advances and pushes the support plate (87) of the cutting assembly (8), thereby compressing the second spring (85) until the support plate (87) triggers the contact switch sensor (83). The sensor outputs a signal to control the electric clamp (89) to clamp the steel bar. At the same time, the cutting blade (88) slides to complete the cutting operation. After cutting, the second spring (85) resets and waits for the next high carbon steel bar to be fed.

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