Hot continuous rolling device for eliminating stainless steel edge scale

Abstract

The utility model discloses a hot continuous rolling device for eliminating stainless steel edge scales. The hot continuous rolling device comprises a rack, a conveying roller, an edge heating mechanism, a scraping mechanism and a roller. The conveying roller is rotationally connected to the rack through a rotating shaft, and the two sets of edge heating mechanisms are symmetrically fixed to the positions, on the two sides of stainless steel, of the rack; the four scraping mechanisms are installed at the two ends of the edge heating mechanism correspondingly. The roller is connected to the rack on one side of the edge heating mechanism; the scraping mechanism comprises a mounting frame, a scraping plate, a rotating shaft, a motor II, a lead screw, a gear III, a connecting plate and a collecting box; a T-shaped guide groove is formed in the support frame; the upper end and the lower end of the mounting frame are T-shaped and are mounted in the T-shaped guide grooves of the support frame; and the rotating shaft is rotationally connected to the mounting frame through a bearing. Impurities on the surface of stainless steel are scraped off and brought into the collecting box; sundries on the surface of the stainless steel can be prevented from being pressed into the stainless steel, and the stainless steel edge scale defect is avoided.

Description

Technical Field

[0001] The utility model belongs to the technical field of hot continuous rolling of stainless steel, in particular to a hot continuous rolling device for eliminating scale folds on the edge of stainless steel. Background Art

[0002] "Scale fold" defect is one of the common defects in the rolling process of stainless steel plates; "Scale fold" is a general term for a line defect on the surface of the rolled plate caused by inclusion (slag) defects in the stainless steel rolled slab or foreign matter pressing into the stainless steel plate; from the above, it can be known that foreign matter pressing into the stainless steel plate including oxide scale is one of the main causes of scale fold defects; the hot rolling steps of stainless steel include heating furnace, descaling mechanism, rough rolling mechanism, heat preservation mechanism, cleaning mechanism, finishing mechanism, laminar cooling mechanism, and coiling mechanism;

[0003] After searching, the prior art announcement number CN116140377A is a production process for eliminating edge scale of stainless steel; it includes a heating process, a rough rolling process and a finishing rolling process; wherein the heating process includes: heating the stainless steel billet to be rolled in a heating furnace, the heating temperature is 1150℃~1200℃; the rough rolling process includes: the width of the stainless steel billet entering the rough rolling mill differs from the required feed width by -5mm~10mm; the stainless steel billet is between the rough rolling process and the finishing rolling process; the processing process has the following disadvantages: the above process can control the uniform rolling of the stainless steel billet to avoid the generation of edge scale due to internal stress or different deformation; but it cannot solve the scale defect caused by foreign matter such as oxide scale pressed into the stainless steel.

[0004] A self-cleaning device for the surface of a roller with an anti-jamming function and announcement number CN217342838U comprises a roller, a cleaning movable frame, a cleaning horizontal drive assembly and two symmetrically arranged cleaning units, wherein the cleaning unit comprises an angle adjustment device, a scraper, a scraper mounting plate, an anti-jamming support shaft, an anti-jamming spring and a scraper mounting frame, wherein the scraper is connected to one end of the scraper mounting frame, the anti-jamming spring is connected to the other end of the scraper mounting frame, the scraper mounting frame is sleeved on the anti-jamming support shaft, the anti-jamming spring and the scraper are respectively located on both sides of the anti-jamming support shaft, and the scraper is in contact with the outer wall of the roller; the processing process has the following disadvantages: the debris scraped off by the scraper cannot be cleaned in time and falls onto the stainless steel, so the roller cannot be cleaned online and needs to be stopped for processing. Summary of the invention

[0005] The utility model aims to overcome the deficiencies in the prior art and to provide a hot rolling device for eliminating scale folds on the edge of stainless steel. The device can scrape off impurities on the surface of the stainless steel through a scraping mechanism and bring the impurities into a collection box; it can prevent debris on the surface of the stainless steel from being pressed into the stainless steel, causing scale defects on the edge of the stainless steel.

[0006] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0007] A hot continuous rolling device for eliminating scale folding at the edge of stainless steel comprises a heating furnace, a scale removal mechanism, a rough rolling mechanism, a heat preservation mechanism, a cleaning mechanism, a finishing rolling mechanism, a laminar cooling mechanism and a coiling mechanism, wherein the heating furnace, the scale removal mechanism, the rough rolling mechanism, the heat preservation mechanism, the cleaning mechanism, the finishing rolling mechanism, the laminar cooling mechanism and the coiling mechanism are arranged in sequence from the beginning to the end of the production line, and the mechanisms are connected end to end through a transfer line; the cleaning mechanism comprises a frame, a transport roller, an edge heating mechanism, a scraping mechanism and a rolling roller; the transport roller is rotatably connected to the frame through a rotating shaft, and a motor I is arranged at one end of the transport roller; the edge heating mechanism is fixed on a frame having two groups symmetrically fixed on both sides of the stainless steel; the scraping mechanism has four groups respectively installed at both ends of the edge heating mechanism; the rolling roller is connected to the frame on one side of the edge heating mechanism, and a motor IV is arranged at one end of the rolling roller; when the stainless steel is first transported to the edge heating mechanism by the transport roller, the edge of the stainless steel is scraped and cleaned by the scraping mechanisms at both ends of the edge heating mechanism, and foreign matters remaining on the surface of the stainless steel are removed, thereby avoiding scale folding defects at the edge of the stainless steel.

[0008] The scraping mechanism includes a mounting frame, a scraping plate, a rotating shaft, a motor II, a lead screw, a gear III, a connecting plate, and a collecting box; a "T"-shaped guide groove is provided on the supporting frame; the upper and lower ends of the mounting frame are both "T"-shaped and are installed in the "T"-shaped guide groove of the supporting frame; the rotating shaft is rotatably connected to the mounting frame through a bearing, a gear II is provided at the end of the rotating shaft close to the top, and a limiting groove is provided on the side wall of the rotating shaft; a number of scraping plates are provided, which are evenly installed on the rotating shaft with the rotating shaft as the center; the lead screw is rotatably connected to the inside of the rotating shaft through a bearing, and a gear III is provided on the top of the lead screw; the connecting plate is connected to the lead screw by a thread, and is connected to the scraping plate through the limiting groove on the rotating shaft; the collecting box is fixed to the supporting frame on one side of the mounting frame; the motor II is fixed to the mounting frame on one side of the rotating shaft, and a spline shaft is connected to the output shaft of the motor II, and the spline shaft and the spline sleeve connection; a gear I is provided on the top of the spline sleeve; a pair of electric push rods are provided, which are located on both sides of the motor II, and a moving plate is provided on the output shaft of the electric push rod, and the moving plate is connected to the spline sleeve; a locking tooth is fixed on one side of the moving plate; the motor II provides power to drive the rotating shaft to rotate as a whole through gears I and II; the rotating shaft drives the scraper plate to rotate, thereby scraping off impurities on the surface of the stainless steel and bringing the impurities into the collection box; the electric push rod provides power to drive the spline sleeve to move upward through the moving plate, so that gear I is meshed and connected with gear III; at the same time, the locking tooth is meshed and connected with gear II, which can lock and fix gear II and the rotating shaft; gear I drives gear III to rotate, gear III drives the lead screw to rotate, the lead screw drives the connecting plate to move along the limiting groove through the thread, and the connecting plate drives the scraper plate to move, so that the height position of the scraper plate can be adjusted to further adapt to stainless steel of different thicknesses.

[0009] The edge heating mechanism includes a support frame, a fixed block, and a heating plate; the fixed block is fixed on the top of the frame, and the support frame is fixed on one end of the fixed block; a pair of heating plates are provided, respectively located at the upper and lower ends of the support frame; the heating plate can heat the edge of the stainless steel when the stainless steel passes through the support frame, thereby increasing the temperature of the stainless steel entering the finishing rolling mechanism, preventing damage to the finishing rolling roller due to too low temperature, and avoiding the formation of edge scale defects on the damaged roller.

[0010] An adjusting mechanism is provided on the support frame at the top of the mounting frame; the adjusting mechanism includes a fixing plate, a motor III, a gear IV, and a rack; the fixing plate is fixed on the side wall of the support frame on one side of the guide groove; the motor III is fixed on the fixing plate, and the gear IV is connected to the output shaft of the motor III; the rack is fixed on the top of the mounting frame, and the rack and the gear IV are meshed and connected; the motor III provides power to drive the gear IV to rotate, the rotation of the gear IV drives the rack to move, and the rack drives the mounting frame to move along the guide groove, so as to adapt to stainless steel of different widths.

[0011] A roller cleaning mechanism is provided above the roller; the roller cleaning mechanism comprises a rotating rod, a supporting arm, a connecting arm, a cleaning plate, a cylinder, a dust hopper and a hose; the rotating rod is fixed on the frame above the roller, and a pair of supporting arms are provided, which are symmetrically connected to the rotating rod; the connecting arm is connected to the end of the supporting arm away from the rotating rod through a rotating shaft; the cylinder is installed on the rotating rod, and the output shaft is connected to the connecting arm; the cleaning plate is installed at the end of the connecting wall away from the supporting arm; the dust hopper is fixed on one side of the cleaning plate, one end of the hose is connected to the dust hopper, and the other end is connected to an external dust collector; the cylinder provides power to drive the cleaning plate and the dust hopper to move through the connecting arm and the supporting arm, so as to adapt to rollers of different diameters, and at the same time make the cleaning plate contact with the roller; during the rotation of the roller, the cleaning plate cleans it, and the cleaned debris is sucked into the dust collector through the dust hopper and the hose; it can prevent the debris on the surface of the roller from being pressed into the stainless steel, causing edge scale defects on the edge of the stainless steel.

[0012] Compared with the prior art, the utility model has the following beneficial effects:

[0013] 1) Motor II provides power to drive the rotating shaft to rotate as a whole through gears I and II; the rotating shaft drives the scraper plate to rotate, thereby scraping off the impurities on the surface of the stainless steel and bringing the impurities into the collection box; it can prevent the impurities on the surface of the stainless steel from being pressed into the stainless steel, causing edge scale defects on the edge of the stainless steel; the electric push rod provides power to drive the spline sleeve to move upward through the moving plate, so that gear I is meshed and connected with gear III; at the same time, the locking tooth is meshed and connected with gear II, which can lock and fix gear II and the rotating shaft; gear I drives gear III to rotate, gear III drives the lead screw to rotate, the lead screw drives the connecting plate to move along the limit groove through the thread, and the connecting plate drives the scraper plate to move, so that the height position of the scraper plate can be adjusted to further adapt to stainless steel of different thicknesses;

[0014] 2) When the stainless steel passes through the support frame, the heating plate can heat the edge of the stainless steel, thereby increasing the temperature of the stainless steel entering the finishing rolling mechanism, preventing damage to the finishing rolling rolls due to low temperature, and avoiding edge scale defects on the damaged rolls. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Attached Figure 1 This is a schematic diagram of the structure of a hot rolling device for eliminating edge scale folding of stainless steel according to the utility model;

[0016] Attached Figure 2 It is a structural schematic diagram of an edge heating mechanism in a hot continuous rolling device for eliminating edge scale folding of stainless steel according to the utility model;

[0017] Attached Figure 3 This is a schematic diagram of the structure of a scraping mechanism in a hot rolling device for eliminating scale folds on the edge of stainless steel. Figure 1 ;

[0018] Attached Figure 4 Yes Figure 3 The enlarged structural diagram of the middle A part;

[0019] Attached Figure 5 This is a schematic diagram of the structure of a scraping mechanism in a hot rolling device for eliminating scale folds on the edge of stainless steel. Figure 2 ;

[0020] Attached Figure 6 This is a schematic diagram of the structure of a scraping mechanism in a hot rolling device for eliminating scale folds on the edge of stainless steel. Figure 3 ;

[0021] Attached Figure 7 It is a structural schematic diagram of a roller cleaning mechanism in a hot continuous rolling device for eliminating scale folds on the edge of stainless steel according to the utility model;

[0022] In the figure: 1, frame; 2, transport roller; 201, motor I; 3, edge heating mechanism; 301, support frame; 3011, guide groove; 302, fixed block; 303, heating plate; 4, scraping mechanism; 401, mounting frame; 402, scraping plate; 403, rotating shaft; 4031, gear II; 4032, limit groove; 404, motor II; 4041, spline shaft; 4042, spline sleeve; 4043, gear I; 405, lead screw; 4051, gear III; 40 6. Connecting plate; 407. Adjusting mechanism; 4071. Fixing plate; 4072. Motor III; 4073. Gear IV; 4074. Rack; 408. Collecting box; 409. Electric push rod; 4091. Moving plate; 4092. Locking tooth; 5. Roller; 501. Motor IV; 6. Roller cleaning mechanism; 601. Rotating rod; 602. Support arm; 603. Connecting arm; 604. Cleaning plate; 605. Cylinder; 606. Dust hopper; 607. Hose; 7. Stainless steel. DETAILED DESCRIPTION

[0023] To facilitate the understanding of those skilled in the art, Figure 1-7 , the technical solution of the utility model is further specifically described.

[0024] A hot rolling device for removing scale from the edge of stainless steel, comprising a heating furnace, a descaling mechanism, a rough rolling mechanism, a heat preservation mechanism, a cleaning mechanism, a finishing rolling mechanism, a laminar cooling mechanism, and a coiling mechanism. From the beginning to the end of the production line, the heating furnace, the descaling mechanism, the rough rolling mechanism, the heat preservation mechanism, the cleaning mechanism, the finishing rolling mechanism, the laminar cooling mechanism, and the coiling mechanism are arranged in sequence. The mechanisms are connected end to end through a transfer line; the cleaning mechanism comprises a frame 1, a transport roller 2, an edge heating mechanism 3, a scraping mechanism 4, and a rolling roller 5; the transport roller 2 is rotatably connected to the frame 1 through a rotating shaft, and one end of the transport roller 2 is A motor Ⅰ201 is provided; the edge heating mechanism 3 is fixed on a frame 1 which is provided with two groups and symmetrically fixed on both sides of the stainless steel 7; the scraping mechanism 4 is provided with four groups and respectively installed at both ends of the edge heating mechanism 3; the rolling roller 5 is connected to the frame 1 on one side of the edge heating mechanism 3, and a motor IV501 is provided at one end of the rolling roller 5; when the stainless steel 7 is first transported to the edge heating mechanism 3 by the transport roller 2, the scraping mechanism 4 at both ends of the edge heating mechanism 3 is used to scrape and clean the edge of the stainless steel 7, and remove the foreign matter remaining on the surface of the stainless steel 7, thereby avoiding the occurrence of scale defects on the edge of the stainless steel 7.

[0025] The scraping mechanism 4 includes a mounting frame 401, a scraping plate 402, a rotating shaft 403, a motor II 404, a lead screw 405, a gear III 4051, a connecting plate 406, and a collecting box 408; a "T"-shaped guide groove 3011 is provided on the support frame 301; both the upper and lower ends of the mounting frame 401 are arranged in a "T" shape and are installed in the "T"-shaped guide groove 3011 of the support frame 301; the rotating shaft 403 is rotatably connected to the mounting frame 401 through a bearing, a gear II 4031 is provided at one end of the rotating shaft 403 near the top, and a limiting groove 4032 is provided on the side wall of the rotating shaft 403; the scraping plate 402 is provided with a There are several, which are evenly installed on the rotating shaft 403 with the rotating shaft 403 as the center; the lead screw 405 is rotatably connected to the inside of the rotating shaft 403 through a bearing, and a gear III 4051 is provided on the top of the lead screw 405; the connecting plate 406 is connected to the lead screw 405 through a thread, and passes through the limit groove 4032 on the rotating shaft 403 to connect with the scraping plate 402; the collecting box 408 is fixed on the support frame 301 on one side of the mounting frame 401; the motor II 404 is fixed on the mounting frame 401 on one side of the rotating shaft 403, and the output shaft of the motor II 404 is connected with a spline shaft 4041, and the spline shaft 4041 is connected to the spline sleeve 40 42 is connected; a gear Ⅰ4043 is provided on the top of the spline sleeve 4042; a pair of electric push rods 409 are provided, which are located on both sides of the motor Ⅱ404, and the output shaft of the electric push rod 409 is provided with a moving plate 4091, and the moving plate 4091 is connected to the spline sleeve 4042; a locking tooth 4092 is fixed on one side of the moving plate 4091; the motor Ⅱ404 provides power to drive the rotating shaft 403 to rotate as a whole through the gear Ⅰ4043 and the gear Ⅱ4031; the rotating shaft 403 drives the scraping plate 402 to rotate, thereby scraping off the impurities on the surface of the stainless steel 7 and bringing the impurities into the collection box 408; the electric push rod 409 provides power The spline sleeve 4042 is driven upward by the movable plate 4091, so that the gear I 4043 is meshed and connected with the gear III 4051; at the same time, the locking tooth 4092 is meshed and connected with the gear II 4031, so that the gear II 4031 and the rotating shaft 403 can be locked and fixed; the gear I 4043 drives the gear III 4051 to rotate, and the gear III 4051 drives the lead screw 405 to rotate, and the lead screw 405 drives the connecting plate 406 to move along the limiting groove 4032 through the thread, and the connecting plate 406 drives the scraping plate 402 to move, so that the height position of the scraping plate 402 can be adjusted to further adapt to stainless steel 7 of different thicknesses.

[0026] The edge heating mechanism 3 includes a support frame 301, a fixed block 302, and a heating plate 303; the fixed block 302 is fixed on the top of the frame 1, and the support frame 301 is fixed on one end of the fixed block 302; a pair of heating plates 303 are respectively located at the upper and lower ends of the support frame 301; when the stainless steel 7 passes through the support frame 301, the heating plate 303 can heat the edge of the stainless steel 7, thereby increasing the temperature of the stainless steel 7 entering the finishing mechanism, preventing damage to the finishing roller due to too low temperature, and avoiding the formation of edge scale defects on the damaged roller.

[0027] An adjusting mechanism 407 is provided on the support frame 301 at the top of the mounting frame 401; the adjusting mechanism 407 includes a fixing plate 4071, a motor III 4072, a gear IV 4073, and a rack 4074; the fixing plate 4071 is fixed on the side wall of the support frame 301 on one side of the guide groove 3011; the motor III 4072 is fixed on the fixing plate 4071, and the gear IV 4073 is connected to the output shaft of the motor III 4072; the rack 4074 is fixed on the top of the mounting frame 401, and the rack 4074 and the gear IV 4073 are meshed and connected; the motor III 4072 provides power to drive the gear IV 4073 to rotate, and the gear IV 4073 rotates to drive the rack 4074 to move, and the rack 4074 drives the mounting frame 401 to move along the guide groove 3011, so as to adapt to stainless steel 7 of different widths.

[0028] A roller cleaning mechanism 6 is provided above the roller 5; the roller cleaning mechanism 6 comprises a rotating rod 601, a support arm 602, a connecting arm 603, a cleaning plate 604, a cylinder 605, a dust collecting hopper 606, and a hose 607; the rotating rod 601 is fixed to the frame 1 above the roller, a pair of support arms 602 are provided, and are symmetrically connected to the rotating rod 601; the connecting arm 603 is connected to one end of the support arm 602 away from the rotating rod 601 through a rotating shaft; the cylinder 605 is installed on the rotating rod 601, and the output shaft is connected to the connecting arm 603; the cleaning plate 604 is installed on one end of the connecting arm 603 away from the support arm 602 end; the dust hopper 606 is fixed on one side of the cleaning plate 604, one end of the hose 607 is connected to the dust hopper 606, and the other end is connected to an external vacuum cleaner; the cylinder 605 provides power to drive the cleaning plate 604 and the dust hopper 606 to move through the connecting arm 603 and the supporting arm 602, so as to adapt to rollers 5 of different diameters, and at the same time make the cleaning plate 604 contact with the roller 5; during the rotation of the roller 5, the cleaning plate 604 cleans it, and the cleaned debris is sucked into the vacuum cleaner through the dust hopper 606 and the hose 607; it can prevent the debris on the surface of the roller 5 from being pressed into the stainless steel 7, causing edge scale defects on the edge of the stainless steel 7.

[0029] A hot rolling device for eliminating scale folding on the edge of stainless steel has the following working process: the stainless steel 7 is first transported to the edge heating mechanism 3 by the transport roller 2, and then the edge of the stainless steel 7 is scraped and cleaned by the scraping mechanisms 4 at both ends of the edge heating mechanism 3 to remove foreign matter remaining on the surface of the stainless steel 7, thereby avoiding scale folding defects on the edge of the stainless steel 7.

[0030] The above contents are merely examples and explanations of the structure of the utility model. The technicians in this technical field may make various modifications or additions to the specific embodiments described or replace them in a similar manner. 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 the utility model.

Claims

1. A hot rolling device for removing scale from the edge of stainless steel, comprising a heating furnace, a descaling mechanism, a rough rolling mechanism, a heat preservation mechanism, a cleaning mechanism, a finishing rolling mechanism, a laminar cooling mechanism, and a coiling mechanism, wherein the heating furnace, the descaling mechanism, the rough rolling mechanism, the heat preservation mechanism, the cleaning mechanism, the finishing rolling mechanism, the laminar cooling mechanism, and the coiling mechanism are arranged from the beginning to the end of the production line, and the mechanisms are connected end to end through a transfer line; characterized in that The cleaning mechanism includes a frame, a transport roller, an edge heating mechanism, a scraping mechanism, and a roller; the characteristics are that the transport roller is rotatably connected to the frame through a rotating shaft, and a motor I is provided at one end of the transport roller; the edge heating mechanism is fixed on a frame with two groups symmetrically fixed on both sides of the stainless steel; the scraping mechanism has four groups respectively installed at both ends of the edge heating mechanism; the roller is connected to the frame on one side of the edge heating mechanism; The scraping mechanism includes a mounting frame, a scraping plate, a rotating shaft, a motor II, a lead screw, a gear III, a connecting plate, and a collecting box; a "T"-shaped guide groove is provided on the supporting frame; the upper and lower ends of the mounting frame are both "T"-shaped and are installed in the "T"-shaped guide groove of the supporting frame; the rotating shaft is rotatably connected to the mounting frame through a bearing, a gear II is provided at one end of the rotating shaft close to the top, and a limiting groove is provided on the side wall of the rotating shaft; a plurality of scraping plates are provided, which are evenly installed on the rotating shaft with the rotating shaft as the center; the lead screw is rotatably connected inside the rotating shaft through a bearing, and a gear III is provided on the top of the lead screw; the connecting plate is connected to the lead screw through a thread, and is connected to the scraping plate through the limiting groove on the rotating shaft; the collecting box is fixed on the supporting frame on one side of the mounting frame; the motor II is fixed on the mounting frame on one side of the rotating shaft, a spline shaft is connected to the output shaft of the motor II, and the spline shaft is connected to the spline sleeve; a gear I is provided on the top of the spline sleeve; a pair of electric push rods are provided, located on both sides of the motor II, and a moving plate is provided on the output shaft of the electric push rod, and the moving plate is connected to the spline sleeve; a locking tooth is fixed on one side of the moving plate.

2. The hot rolling device for eliminating edge folding of stainless steel according to claim 1, characterized in that The edge heating mechanism comprises a support frame, a fixed block and a heating plate; the fixed block is fixed on the top of the frame, and the support frame is fixed on one end of the fixed block; a pair of heating plates are provided, which are respectively located at the upper and lower ends of the support frame.

3. The hot rolling device for eliminating edge folding of stainless steel according to claim 1, characterized in that An adjusting mechanism is provided on the supporting frame at the top of the mounting frame; the adjusting mechanism comprises a fixing plate, motor III, gear IV and a rack; the fixing plate is fixed on the side wall of the supporting frame on one side of the guide groove; motor III is fixed on the fixing plate, and gear IV is connected to the output shaft of motor III; the rack is fixed on the top of the mounting frame, and the rack and gear IV are meshed and connected.

4. The hot rolling device for eliminating edge folding of stainless steel according to claim 1, characterized in that A roller cleaning mechanism is provided above the roller; the roller cleaning mechanism comprises a rotating rod, a support arm, a connecting arm, a cleaning plate, a cylinder, a dust hopper and a hose; the rotating rod is fixed on the frame above the roller, a pair of support arms are provided, and are symmetrically connected to the rotating rod; the connecting arm is connected to an end of the support arm away from the rotating rod through a rotating shaft; the cylinder is installed on the rotating rod, and the output shaft is connected to the connecting arm; the cleaning plate is installed on an end of the connecting wall away from the support arm; the dust hopper is fixed on one side of the cleaning plate, one end of the hose is connected to the dust hopper, and the other end is connected to an external vacuum cleaner.

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