Hot continuous rolling device for high-plasticity formability austenitic stainless steel hot rolled plate

Abstract

A hot continuous rolling device for a high-plasticity formability austenitic stainless steel hot-rolled plate comprises a rolling mill, a displacement mechanism and a cleaning mechanism. The displacement mechanism is arranged on the rolling mill and connected with the cleaning mechanism, the cleaning mechanism is matched with a roller of the rolling mill, and a hot-rolled plate is conveyed to the rolling mill through a conveying roller; the moving mechanism adjusts the position of the sweeping mechanism, a spring I of the sweeping mechanism ejects an arc-shaped brush plate to enable the arc-shaped brush plate to be tightly attached to the surface of the roller, an electric push rod II pushes a scraping plate and a supporting plate to rotate at the same time, the position of the scraping plate is adjusted, and a spring II is arranged between the scraping plate and a connecting plate II to enable the top end of the scraping plate to be tightly attached to the surface of the roller. And an angle stepping motor of the cleaning mechanism controls a gear I to rotate, the gear I is meshed with a gear II, the gear II drives a connecting shaft II to rotate, the angle of a slag blocking plate on the lower portion of a scraping plate is adjusted through rotation of the connecting shaft II, and the situation that the impurities fall onto the surface of the stainless steel rolled plate, and consequently surface defects are caused is avoided.

Description

Technical Field

[0001] This utility model belongs to the field of stainless steel hot rolling technology, and specifically relates to a hot continuous rolling device for austenitic stainless steel hot-rolled plates with high plasticity and formability. Background Technology

[0002] High-plasticity formable austenitic stainless steel is a type of stainless steel with excellent plasticity and formability. It is widely used in the manufacture of parts that require complex shapes and precision dimensions. During the hot rolling process of high-plasticity formable austenitic stainless steel hot-rolled plates, impurities are easily adhered to the rolls. Due to the excellent plasticity and formability of austenitic stainless steel, the impurities on the rolls are easily rolled into the stainless steel surface, forming scratches or indentations on the stainless steel plate surface, increasing the surface roughness of the stainless steel plate and affecting the smoothness.

[0003] A search revealed that a utility model patent with authorization number CN 220879924 U discloses a hot rolling device for profile steel, comprising two identical upper and lower rolls. Each roll includes a power shaft, positioning rings, annular baffles, an outer ring, and tie rods. Multiple positioning rings are spaced apart on the power shaft, and multiple positioning protrusions are provided on the outer edge of each positioning ring. All positioning protrusions on the positioning rings correspond to each other front and back. The outer ring is fitted over the positioning rings, and its inner wall has grooves that fit the positioning protrusions. The diameters at both ends of the power shaft are smaller than the diameter of the central main body, and detachable annular baffles are fitted on them. The annular baffles and positioning rings have corresponding through holes. The two annular baffles are fixed together by bolts via multiple tie rods. This detachable design allows the outer ring to be replaced, enabling individual replacement after significant surface wear. However, it does not allow for cleaning of the roll surface, and impurities adhering to the rolls cause surface defects in the rolled steel.

[0004] A search revealed that a utility model with prior art authorization announcement number CN 222288351 U provides a hot rolling device for flat plates, including a worktable, a preheating box on one side of the worktable containing a preheating component, a feeding roller inside the worktable, a gantry frame on the top of the worktable, a motor on one side of the gantry frame, and a roller connected to the output end of the motor via a coupling through the gantry frame. A scrap cleaning component is also provided at the bottom of the worktable. This device solves the problem of inconvenient scrap cleaning during hot rolling by using the scrap cleaning component. However, because it includes a cleaning mechanism for the rollers themselves, it cannot prevent impurities on the roller surface from being rolled into the plate surface. Summary of the Invention

[0005] The purpose of this invention is to overcome the shortcomings of the existing technology and provide a hot continuous rolling device for high-plasticity austenitic stainless steel plates. The device removes impurities adhering to the rolls through a cleaning mechanism, thereby preventing impurities from being rolled into the high-plasticity austenitic stainless steel during the rolling process and causing defects on the stainless steel surface.

[0006] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0007] A hot rolling apparatus for austenitic stainless steel hot-rolled plate with high plasticity and formability includes a rolling mill, a displacement mechanism, and a cleaning mechanism; the displacement mechanism is installed on the rolling mill and is connected to the cleaning mechanism, which cooperates with the rolls of the rolling mill; the hot-rolled plate is conveyed to the rolling mill by conveying rolls.

[0008] The rolling mill includes a rolling mill frame, electric push rod I, a lower pressure plate, rolls, positioning grooves, positioning sliders, and motor I. The rolls include an upper roll and a lower roll. Electric push rod I is located at the top of the rolling mill frame, with the lower part of electric push rod I connected to the lower pressure plate. The lower part of the lower pressure plate is connected to the positioning slider, which is located in the positioning groove. The positioning groove is fixed on both sides of the rolling mill frame. The upper roll is located between two sets of positioning sliders. Motor I is located at one end of the positioning slider, with its shaft end connected to the upper roll to control its rotation. A lower roll is correspondingly located below the upper roll and is located at the bottom of the rolling mill frame. The shaft end of the lower roll is connected to motor I. Electric push rod I controls the lower pressure plate to move downward, which in turn moves the positioning slider within the positioning groove. The positioning slider then moves the upper roll, further adjusting the gap between the upper and lower rolls.

[0009] The displacement mechanism includes a motor II, a positioning frame, a lead screw, a connecting plate I, a lead block, a lead screw positioning plate, and a limiting shaft. The motor II is mounted on the positioning frame, which is fixed to the rolling mill fixed frame. The motor II is connected to the lead screw to control its rotation. The other end of the lead screw is equipped with a lead screw positioning plate, which is fixedly connected to the rolling mill fixed frame. The connecting plate I is equipped with a lead block that cooperates with the lead screw. The other side of the positioning frame is equipped with a limiting shaft that is slidably connected to the connecting plate I. When the motor II is working, it drives the lead screw to rotate, causing the lead block mounted on the lead screw to move. The lead block then drives the connecting plate I to move.

[0010] The cleaning mechanism includes an arc-shaped brush plate, spring I, a support plate, a scraper, a connecting plate II, spring II, an electric push rod II, a connecting shaft I, an angle stepper motor, gear I, gear II, connecting shaft II, a fixed seat I, a slag-blocking plate, a fixed seat II, a suction pipe, a sliding shaft, and a limiting plate. The support plate is connected to the connecting plate I, and one end of the support plate is connected to the connecting plate II via a pin. The support plate and the connecting plate II are rotatably connected. The sliding shaft passes through the support plate and connects to the arc-shaped brush plate. Spring I is sleeved on the sliding shaft and is located between the arc-shaped brush plate and the support plate. The other end of the sliding shaft is provided with a limiting plate. The connecting plate II is connected to the scraper via the connecting shaft I. Multiple sets of springs II are provided between the connecting plate II and the scraper. The scraper is provided with a fixed seat II, and the fixed seat II contains a suction pipe. The electric push rod II is located on the support plate, and the protruding end of the electric push rod II is located on the connecting shaft I. An angle stepper motor is installed in the middle of the plate, which controls gear I. Gear I meshes with gear II, which is mounted on connecting shaft II. Connecting shaft II is mounted in fixed seat I and rotatably connected to fixed seat I. Fixed seat I is mounted on a support plate. The slag baffle is fixedly connected to connecting shaft I. Spring I, located between the arc-shaped brush plate and the support plate, pushes the arc-shaped brush plate out, making it stick to the surface of the roll to clean the roll surface. The scraper is pushed by electric push rod II to adjust the position of the scraper. Spring II, located between the scraper and connecting plate II, makes the top of the scraper stick to the surface of the roll to scrape off impurities. The scraped impurities are sucked into the suction pipe. The angle stepper motor controls gear I to rotate, which meshes with gear II. Gear II drives connecting shaft II to rotate, and the angle of the slag baffle at the bottom of the scraper is adjusted by the rotation of connecting shaft II.

[0011] The advantages of this utility model compared with the prior art are as follows:

[0012] 1) The spring I in the middle of the support plate of the cleaning mechanism pushes out the arc-shaped brush plate, so that the arc-shaped brush plate is close to the surface of the roll and cleans the surface of the roll. The scraper is pushed by the electric push rod II, and the support plate rotates at the same time to adjust the position of the scraper. Then, the spring II set between the scraper and the connecting plate II makes the top of the scraper close to the surface of the roll and scrapes away the impurities on the surface of the roll.

[0013] 2) The scraped impurities are sucked into the suction pipe set on the scraper to prevent impurities from accumulating. The angle stepper motor controls the rotation of gear I, gear I meshes with gear II, gear II drives the connecting shaft II to rotate. The angle of the slag baffle plate at the bottom of the scraper is adjusted by the rotation of the connecting shaft II to prevent impurities from falling onto the surface of the stainless steel plate and causing surface defects. Attached Figure Description

[0014] Appendix Figure 1 This is a schematic diagram of the hot continuous rolling device for austenitic stainless steel hot-rolled plate with high plasticity and formability according to this utility model.

[0015] Appendix Figure 2 It is attached Figure 1Schematic diagram of the intermediate rolling mill structure;

[0016] Appendix Figure 3 It is attached Figure 1 Schematic diagram of the mid-displacement mechanism;

[0017] Appendix Figure 4 It is attached Figure 1 Schematic diagram of the cleaning mechanism Figure 1 ;

[0018] Appendix Figure 5 It is attached Figure 1 Schematic diagram of the cleaning mechanism Figure 2 ;

[0019] Appendix Figure 6 It is attached Figure 1 Schematic diagram of the cleaning mechanism Figure 3 ;

[0020] In the diagram: 11. Rolling mill; 12. Displacement mechanism; 13. Cleaning mechanism; 14. Conveyor roller; 15. Hot-rolled plate; 101. Rolling mill fixing frame; 102. Electric actuator I; 103. Lower pressure plate; 104. Roll; 105. Positioning groove; 106. Positioning slider; 107. Motor I; 201. Motor II; 202. Positioning frame; 203. Lead screw; 204. Connecting plate I; 205. Lead screw block; 206. Lead screw positioning plate; 207. Limiting shaft 301. Arc-shaped brush plate; 302. Spring I; 303. Support plate; 304. Scraper; 305. Connecting plate II; 306. Spring II; 307. Electric actuator II; 308. Connecting shaft I; 309. Angle stepper motor; 310. Gear I; 311. Gear II; 312. Connecting shaft II; 313. Fixed seat I; 314. Slag baffle plate; 315. Fixed seat II; 316. Suction pipe; 317. Sliding shaft; 318. Limiting plate. Detailed Implementation

[0021] To facilitate understanding by those skilled in the art, the following is a detailed explanation in conjunction with the appendix. Figure 1-6 The technical solution of this utility model will be further described in detail below.

[0022] A hot rolling apparatus for austenitic stainless steel hot-rolled plate 15 with high plasticity and formability includes a rolling mill 11, a displacement mechanism 12, and a cleaning mechanism 13. The displacement mechanism 12 is mounted on the rolling mill 11 and is connected to the cleaning mechanism 13. The cleaning mechanism 13 cooperates with the rolls 104 of the rolling mill 11. The hot-rolled plate 15 is conveyed to the rolling mill 11 by a conveying roll 14.

[0023] The rolling mill 11 includes a rolling mill frame 101, an electric push rod I 102, a lower pressure plate 103, a roll 104, a positioning groove 105, a positioning slider 106, and a motor I 107. The roll 104 includes an upper roll and a lower roll. The electric push rod I 102 is located at the top of the rolling mill frame 101, and its lower part is connected to the lower pressure plate 103. The lower part of the lower pressure plate 103 is connected to the positioning slider 106, which is located in the positioning groove 105. The positioning groove 105 is fixed to both sides of the rolling mill frame 101. The upper roll is... Between the two sets of positioning sliders 106, a motor I 107 is installed at one end of the positioning slider 106. The shaft end of the motor I 107 is connected to the upper roller, controlling the rotation of the upper roller. A lower roller is correspondingly provided below the upper roller. The lower roller is set at the bottom of the mill fixed frame 101, and the shaft end of the lower roller is connected to the motor I 107. The electric push rod I 102 controls the lower pressure plate 103 to move down. The lower pressure plate 103 drives the positioning slider 106 to move in the positioning groove 105. The positioning slider 106 drives the upper roller to move, further adjusting the gap between the upper roller and the lower roller.

[0024] The displacement mechanism 12 includes a motor II 201, a positioning frame 202, a lead screw 203, a connecting plate I 204, a lead screw block 205, a lead screw positioning plate 206, and a limiting shaft 207. The motor II 201 is mounted on the positioning frame 202, which is fixed to the rolling mill mounting frame 101. The motor II 201 connects to the lead screw 203 to control its rotation. The other end of the lead screw 203 is equipped with a lead screw positioning plate 206, which is fixedly connected to the rolling mill mounting frame 101. The connecting plate I 204 is equipped with a lead screw block 205, which cooperates with the lead screw 203. On the other side of the positioning frame 202, there is a limiting shaft 207, which is slidably connected to the connecting plate I 204. When the motor II 201 is working, it drives the lead screw 203 to rotate, and the lead block 205 set on the lead screw 203 and cooperating with the lead screw 203 moves. The lead block 205 drives the connecting plate I 204 to move.

[0025] The cleaning mechanism 13 includes an arc-shaped brush plate 301, a spring I 302, a support plate 303, a scraper 304, a connecting plate II 305, a spring II 306, an electric push rod II 307, a connecting shaft I 308, an angle stepper motor 309, a gear I 310, a gear II 311, a connecting shaft II 312, a fixed seat I 313, a slag-blocking plate 314, a fixed seat II 315, a suction pipe 316, a sliding shaft 317, and a limiting plate 318. The support plate 303 is connected to the connecting plate I 204, and one end of the support plate 303 is connected to the connecting plate II 305 via a pin. The support plate 303 and the connecting plate II 305 rotate. The sliding shaft 317 passes through the support plate 303 and connects to the arc-shaped brush plate 301. A spring I 302 is sleeved on the sliding shaft 317 and is positioned between the arc-shaped brush plate 301 and the support plate 303. A limiting plate 318 is provided at the other end of the sliding shaft 317. A connecting plate II 305 is connected to the scraper 304 via the connecting shaft I 308. Multiple sets of springs II 306 are provided between the connecting plate II 305 and the scraper 304. A fixing seat II 315 is provided on the scraper 304, and an air suction pipe 316 is located inside the fixing seat II 315. An electric push rod II 307 is mounted on the support plate 303, and the protruding end of the electric push rod II 307 is... A stepper motor 309 is installed in the middle of the support plate 303, and the stepper motor 309 controls gear I 310. Gear I 310 meshes with gear II 311. Gear II 311 is mounted on the connecting shaft II 312. The connecting shaft II 312 is mounted in the fixed seat I 313 and rotatably connected to the fixed seat I 313. The fixed seat I 313 is mounted on the support plate 303. The slag baffle 314 is fixedly connected to the connecting shaft I 308. A spring I 302, located between the arc-shaped brush plate 301 and the support plate 303, pushes out the arc-shaped brush plate 301, making the arc-shaped brush plate 301 adhere tightly to the roller 10. 4. The surface of the roll 104 is cleaned by pushing the scraper 304 with the electric push rod II 307 to adjust the position of the scraper 304. Then, the spring II 306 set between the scraper 304 and the connecting plate II 305 makes the top of the scraper 304 stick to the surface of the roll 104 to scrape off the impurities on the surface of the roll 104. The scraped impurities are sucked into the suction pipe 316. The angle stepper motor 309 controls the gear I 310 to rotate. The gear I 310 meshes with the gear II 311. The gear II 311 drives the connecting shaft II 312 to rotate. The angle of the slag baffle 314 at the bottom of the scraper is adjusted by the rotation of the connecting shaft II 312.

[0026] A hot continuous rolling mill for austenitic stainless steel hot-rolled plate with high plasticity and formability, the working process of which is as follows:

[0027] The hot-rolled plate 15 is conveyed to the rolling mill 11 by the conveying roller 14. The electric push rod I 102 of the rolling mill 11 controls the lower pressure plate 103 to move down. The lower pressure plate 103 drives the positioning slider 106 to move in the positioning groove 105. The positioning slider 106 drives the upper roll to move, further adjusting the gap between the upper roll and the lower roll, and performing rolling work on the hot-rolled plate 15.

[0028] The motor II 201 of the moving mechanism drives the lead screw 203 to rotate, causing the lead block 205, which is mounted on the lead screw 203 and cooperates with it, to move. The lead block 205 drives the connecting plate I 204 to move, and the connecting plate I 204 drives the support plate 303 of the cleaning mechanism 13 to move. The spring I 302, located between the arc-shaped brush plate 301 and the support plate 303, pushes the arc-shaped brush plate 301 out, so that the arc-shaped brush plate 301 is pressed against the surface of the roller 104 to clean the surface of the roller 104. The support plate 303 drives the connecting plate II 305, and the connecting plate II 305 drives the scraper 304 to press against the roller 104. At the same time, the scraper is pushed by the electric push rod II 307. 304. The support plate 303 rotates simultaneously, causing the scraper 304 to extend or retract. Then, through the spring 206 set between the scraper 304 and the connecting plate 205, the top of the scraper 304 is pressed against the surface of the roll 104 to scrape off impurities from the surface of the roll 104. The scraped impurities are sucked into the suction pipe 316 to prevent impurities from accumulating. The angle stepper motor 309 controls the gear I 310 to rotate. The gear I 310 meshes with the gear II 311. The gear II 311 drives the connecting shaft II 312 to rotate. The angle of the slag baffle 314 at the bottom of the scraper is adjusted by the rotation of the connecting shaft II 312 to prevent the scraped impurities from falling and affecting the surface of the stainless steel hot-rolled plate.

[0029] In the description of this utility model, unless otherwise stated, "a plurality of" means two or more; the terms "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and 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.

[0030] In summary, the electronic or electrical components, including but not limited to motors, angle stepper motors, and electric actuators, are existing components that were custom-made or purchased. The electrical connections between these components are conventional circuit or electrical connections in the prior art and are not within the scope of protection of this utility model.

[0031] The above description is merely an example and illustration of the structure of this utility model. Those skilled in the art can make various modifications or additions to the specific embodiments described or use similar methods to replace them, as long as they do not deviate from the structure of the utility model or exceed the scope defined in the claims, they should all fall within the protection scope of this utility model.

Claims

1. A hot continuous rolling apparatus for high-plasticity austenitic stainless steel hot-rolled plates, comprising a rolling mill, a displacement mechanism, and a cleaning mechanism; wherein the displacement mechanism is mounted on the rolling mill, characterized in that... The displacement mechanism is connected to the cleaning mechanism, and the cleaning mechanism works in conjunction with the rolling mill rolls. The hot-rolled plate is conveyed to the rolling mill by the conveying rolls. The cleaning mechanism includes an arc-shaped brush plate, spring I, support plate, scraper, connecting plate II, spring II, electric push rod II, connecting shaft I, angle stepper motor, gear I, gear II, connecting shaft II, fixed seat I, slag baffle plate, fixed seat II, suction pipe, sliding shaft, and limiting plate; The support plate is connected to the connecting plate I. One end of the support plate is connected to the connecting plate II via a pin. The support plate and the connecting plate II are rotatably connected. A sliding shaft passes through the support plate and connects to the arc-shaped brush plate. Spring I is sleeved on the sliding shaft and is located between the arc-shaped brush plate and the support plate. A limiting plate is provided at the other end of the sliding shaft. The connecting plate II is connected to the scraper via the connecting shaft I. Multiple sets of springs II are provided between the connecting plate II and the scraper. A fixed seat II is provided on the scraper, and an air suction pipe is located inside the fixed seat II. The electric push rod II is located on the support plate, and its protruding end is located on the connecting shaft I. An angle stepper motor is located in the middle of the support plate. The angle stepper motor controls gear I. Gear II is engaged and mounted on connecting shaft II. Connecting shaft II is rotatably connected to fixed seat I, which is mounted on a support plate. Slag baffle is fixedly connected to connecting shaft I. Spring I pushes out an arc-shaped brush plate, making the arc-shaped brush plate adhere to the surface of the roll. The scraper is pushed by electric push rod II to adjust the position of the scraper. Spring II, which is set between the scraper and connecting plate II, makes the top of the scraper adhere to the surface of the roll. The scraped impurities are sucked into the suction pipe. An angle stepper motor controls gear I to rotate. Gear I meshes with gear II, and gear II drives connecting shaft II to rotate. The angle of the slag baffle at the bottom of the scraper is adjusted by the rotation of connecting shaft II.

2. The hot continuous rolling apparatus for high-plasticity austenitic stainless steel hot-rolled plates according to claim 1, characterized in that... The displacement mechanism includes a motor II, a positioning frame, a lead screw, a connecting plate I, a lead block, a lead screw positioning plate, and a limiting shaft. The motor II is mounted on the positioning frame, which is fixed to the rolling mill fixed frame. The motor II is connected to the lead screw to control its rotation. The other end of the lead screw is equipped with a lead screw positioning plate, which is fixedly connected to the rolling mill fixed frame. The connecting plate I is equipped with a lead block that cooperates with the lead screw. The other side of the positioning frame is equipped with a limiting shaft that is slidably connected to the connecting plate I. The motor II drives the lead screw to rotate, causing the lead block, which cooperates with the lead screw, to move. The lead block then drives the connecting plate I to move.

3. The hot continuous rolling apparatus for high-plasticity austenitic stainless steel hot-rolled plates according to claim 1, characterized in that... The rolling mill includes a rolling mill frame, electric push rod I, a lower pressure plate, rolls, positioning grooves, positioning sliders, and motor I. The rolls include an upper roll and a lower roll. Electric push rod I is located at the top of the rolling mill frame, with the lower part of electric push rod I connected to the lower pressure plate. The lower part of the lower pressure plate is connected to the positioning slider, which is located in the positioning groove. The positioning groove is fixed on both sides of the rolling mill frame. The upper roll is located between two sets of positioning sliders. Motor I is located at one end of the positioning slider, with its shaft end connected to the upper roll to control its rotation. A lower roll is correspondingly located below the upper roll and is located at the bottom of the rolling mill frame. The shaft end of the lower roll is connected to motor I. Electric push rod I controls the lower pressure plate to move downward, which in turn moves the positioning slider within the positioning groove. The positioning slider then moves the upper roll, further adjusting the gap between the upper and lower rolls.

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