Stainless steel continuous casting billet high-precision withdrawal and straightening machine with compression roller

Abstract

The invention relates to the technical field of withdrawal and straightening machines, in particular to a stainless steel continuous casting billet high-precision withdrawal and straightening machine with compression rollers, which comprises a wire seat, and an upper row of transverse straightening compression rollers and a lower row of transverse straightening compression rollers are assembled above the wire seat; a longitudinal correction die is installed at the feeding end and the discharging end of the wire base and provided with a front row of longitudinal correction pressing rollers and a rear row of longitudinal correction pressing rollers used for correcting the upper face and the lower face of a conveyed continuous casting steel billet. A plurality of longitudinal unit cavities are formed in the longitudinal assembly cavity, a front row of longitudinal correction compression rollers and a rear row of longitudinal correction compression rollers are slidably embedded in the longitudinal unit cavities respectively, and the sliding direction of the two rows of longitudinal correction compression rollers is perpendicular to the steel billet conveying direction; a synchronous longitudinal adjusting mechanism is installed in the longitudinal assembly cavity, accurate adjustment of the longitudinal distance between the two rows of longitudinal correction pressing rollers can be achieved without disassembling the die, the steel billet correction requirements of different width specifications are met, and the adjusting mode is simple, short in time consumption, low in labor intensity and high in efficiency, and does not need cooperative operation of multiple operators.

Description

Technical Field

[0001] This invention relates to the field of tension leveling machine technology, and in particular to a high-precision tension leveling machine for continuous casting billets with stainless steel pressure rollers. Background Technology

[0002] The continuous casting billet straightening machine is a key piece of equipment in the stainless steel production process. Its core function is to correct the posture and traction of the continuously cast billet, ensuring that the billet's dimensional accuracy and surface quality meet the requirements of subsequent processing. In actual production, the billet needs to undergo bidirectional straightening in both the transverse and longitudinal directions. Transverse straightening is used to correct the bending deformation on the upper and lower surfaces of the billet, while longitudinal straightening addresses the straightness deviation on both sides (surfaces) of the billet's width. Only through the coordinated operation of both can the final straightening effect be guaranteed.

[0003] In existing technologies, the longitudinal straightening dies of a straightening machine cannot be adjusted according to the width specifications of the steel billets. Because continuous casting production requires adapting to steel billets of varying widths (some billets are wider, some are narrower), the existing fixed-structure longitudinal straightening dies are insufficient to meet the adaptation requirements when the billet width changes. The existing method of replacing longitudinal straightening dies by disassembly is not only cumbersome and time-consuming, but also requires multiple operators, resulting in high labor intensity and low efficiency. Summary of the Invention

[0004] To address the above problems, the present invention provides the following technical solution: A high-precision straightening machine for continuous casting billets with stainless steel pressure rollers includes a wire rod base, with two rows of transverse straightening pressure rollers mounted above the base. A longitudinal straightening mold is installed at the inlet and outlet ends of the wire rod base, and two rows of longitudinal straightening pressure rollers are arranged on the mold for straightening the upper and lower surfaces of the conveyed continuous casting billet. A longitudinal assembly cavity is provided within the mold, containing several longitudinal unit cavities. The two rows of longitudinal straightening pressure rollers are slidably embedded in each of these unit cavities, with the sliding direction of the two rows perpendicular to the billet conveying direction. A synchronous longitudinal adjustment mechanism is installed within the longitudinal assembly cavity, comprising a first adjusting seat, a second adjusting seat, a pair of longitudinal racks, and... Adjustment gear; wherein, the first adjustment seat is rotatably connected to all longitudinal straightening pressure rollers in the front row, and the second adjustment seat is rotatably connected to all longitudinal straightening pressure rollers in the rear row. The longitudinal ends of the first and second adjustment seats are respectively fixedly mounted with longitudinal racks. The adjustment gear is rotatably installed in the middle position of the assembly cavity. The two longitudinal racks are arranged parallel to each other in the longitudinal direction, and their tooth surfaces are respectively meshed on both sides of the longitudinal direction of the adjustment gear. By rotating the adjustment gear, the two meshing longitudinal racks are driven to move synchronously in opposite or the same direction in the longitudinal direction. Then, the two longitudinal racks drive the first and second adjustment seats to move synchronously in the longitudinal unit cavity. Finally, the first and second adjustment seats drive the front and rear rows of longitudinal straightening pressure rollers to achieve precise adjustment of the longitudinal spacing.

[0005] Preferably, the feed and discharge ends of the line seat are provided with an assembly seat, and a U-shaped assembly space is provided in the assembly seat. The longitudinal straightening mold is detachably installed in the U-shaped assembly space. The longitudinal assembly cavity is opened in the middle area of ​​the longitudinal straightening mold, and the center line of the longitudinal assembly cavity coincides with the middle section line of the upper and lower rows of transverse straightening pressure rollers, so that the continuous casting billet can smoothly enter the transverse straightening process along the corresponding reference line after longitudinal straightening.

[0006] Preferably, the bottom end of the longitudinal straightening roller is connected to a lower mounting seat, which slides within the longitudinal unit cavity and its outer wall surface slides in contact with the cavity wall of the longitudinal unit cavity. The first adjusting seat or the second adjusting seat is fixedly connected to the lower mounting seat. The top end of the longitudinal straightening roller is connected to an upper mounting seat. Columns are installed at the four corners of the top surface of the longitudinal straightening mold. A cover plate is installed at the top of the columns. The bottom surface of the cover plate has several slides corresponding to the upper mounting seats. The upper mounting seats are slidably assembled within the slides, and their outer wall slides in contact with the cavity wall of the slides.

[0007] Preferably, a protrusion is provided between two adjacent longitudinal unit cavities, and a slide rail is installed on the top surface of the protrusion. A slider that cooperates with the slide rail is provided on the bottom surface of the first adjustment seat and the second adjustment seat.

[0008] Preferably, the fixed end of the longitudinal rack is provided with a connecting part that forms an angle with it, and the top surface of the connecting part is provided with an inclined surface.

[0009] Preferably, the two ends of the protrusion are provided with chamfered surfaces, and the bottom edge of the chamfered surface is at the maximum stroke of the longitudinal movement of the first adjusting seat and the second adjusting seat.

[0010] Preferably, the longitudinal assembly cavity has an assembly hole in the middle, a bearing is installed in the assembly hole, a vertically upward rotating shaft is installed in the bearing, the adjusting gear is installed at the top of the rotating shaft, a worm gear is installed at the bottom of the rotating shaft, the worm gear meshes with a worm, the worm extends horizontally to the outside of the end of the longitudinal straightening mold, and an operating component for driving its rotation is installed, the operating component being a handwheel or a servo motor.

[0011] Preferably, the longitudinal straightening roller adopts a bimetallic composite structure, with its roller core made of No. 1 steel and its roller surface made of wear-resistant hard alloy layer, which reduces scratches on the steel billet surface during the straightening process.

[0012] The advantages of this invention compared to the prior art are: By setting longitudinal straightening dies at the inlet and outlet ends, the continuously cast steel billets can be straightened by roller pressing on both sides during the feeding and discharging of the straightening machine. The front and rear rows of longitudinal straightening rollers in the longitudinal straightening die are fitted into separate longitudinal unit cavities of the front and rear rows through a sliding fit relationship, providing sliding installation space for the front and rear rows of longitudinal straightening rollers. The two rows of longitudinal straightening rollers are slidably embedded in the front and rear longitudinal unit cavities, realizing multi-station synchronous guidance. After the front and rear rows of longitudinal straightening rollers adjust their positions longitudinally along their respective longitudinal unit cavities, they can press onto the front and rear sides of the steel billet, thereby adjusting the longitudinal spacing between the two rows of longitudinal straightening rollers according to the width of the steel billet.

[0013] A longitudinal adjustment mechanism is installed within the longitudinal assembly cavity. This mechanism is the actuator for adjusting the distance between the front and rear rows of longitudinal straightening rollers. It engages the longitudinal racks on the first and second adjusting seats with the adjusting gears. Depending on the actual width of the continuously cast steel billet, the adjusting gears are rotated clockwise or counterclockwise, driving the two adjusting seats to move in opposite directions. This ensures that the front and rear rows of longitudinal straightening rollers press against the two sides of the billet width, meeting the straightening requirements. This adjustment method allows for precise adjustment of the longitudinal distance between the two rows of longitudinal straightening rollers without disassembling the mold, adapting to the straightening needs of billets with different widths. This adjustment method is simple, time-saving, requires minimal operator effort, has low labor intensity, and is highly efficient. Attached Figure Description

[0014] Figure 1 A schematic diagram from a first-view perspective of a high-precision tension leveling machine for continuous casting of stainless steel billets with pressure rollers, provided for an embodiment of the present invention; Figure 2 A high-precision straightening machine for continuously cast stainless steel billets with pressure rollers, provided for embodiments of the present invention, consists of... Figure 1 A schematic diagram showing the extended cover plate after it is opened upwards; Figure 3 A high-precision straightening machine for continuously cast stainless steel billets with pressure rollers, provided for embodiments of the present invention, consists of... Figure 2 Enlarged schematic diagram of part A; Figure 4 A high-precision straightening machine for continuously cast stainless steel billets with pressure rollers, provided for embodiments of the present invention, consists of... Figure 2 This is a schematic diagram from another perspective. Figure 5 A schematic diagram of a high-precision straightening machine for continuously cast stainless steel billets with pressure rollers removing the longitudinal straightening pressure rollers on the rear side, provided for an embodiment of the present invention. Figure 6 A high-precision straightening machine for continuously cast stainless steel billets with pressure rollers, provided for embodiments of the present invention, consists of... Figure 5 A schematic diagram showing the relationship between the longitudinal straightening roller and the rack removed in the middle; Figure 7 A high-precision tension leveling machine for continuously cast stainless steel billets with pressure rollers is provided as an embodiment of the present invention. Figure 2 A diagram illustrating the upward-looking perspective; Figure 8 A high-precision straightening machine for continuously cast stainless steel billets with pressure rollers, provided for embodiments of the present invention, consists of... Figure 7 An enlarged schematic diagram of section B.

[0015] In the diagram: 1. Wire seat; 2. Transverse straightening roller; 3. Longitudinal straightening mold; 4. Longitudinal straightening roller; 5. Continuously cast steel billet; 6. Longitudinal assembly cavity; 7. Longitudinal unit cavity; 8. Synchronous longitudinal adjustment mechanism; 9. First adjusting seat; 10. Second adjusting seat; 11. Longitudinal rack; 12. Adjusting gear; 13. Assembly seat; 14. U-shaped assembly space; 15. Lower assembly seat; 16. Upper assembly seat; 17. Column; 18. Cover plate; 19. Slide rail; 20. Protrusion; 21. Slide rail; 22. Slider; 23. Connecting part; 24. Inclined surface; 25. Chamfered surface; 26. Assembly hole; 27. Operating component; 28. Rotating shaft; 29. ​​Worm gear; 30. Worm. Detailed Implementation

[0016] The above and other embodiments and advantages 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.

[0017] In one implementation, such as Figures 1-8 As shown: This embodiment provides a high-precision straightening machine for continuous casting billets 5 with stainless steel pressure rollers, including a wire base 1, with two rows of transverse straightening pressure rollers 2 mounted on top of the wire base 1; a longitudinal straightening mold 3 is installed at the inlet and outlet ends of the wire base 1, and two rows of longitudinal straightening pressure rollers 4 are arranged on the longitudinal straightening mold 3 for straightening the upper and lower surfaces of the conveyed continuous casting billet 5; a longitudinal assembly cavity 6 is opened in the longitudinal straightening mold 3, and several longitudinal unit cavities 7 are provided in the longitudinal assembly cavity 6. The two rows of longitudinal straightening pressure rollers 4 are slidably embedded in each of the longitudinal unit cavities 7, and the sliding direction of the two rows of longitudinal straightening pressure rollers 4 is perpendicular to the billet conveying direction; a synchronous longitudinal adjustment mechanism 8 is installed in the longitudinal assembly cavity 6, and the synchronous longitudinal adjustment mechanism 8 includes a first adjusting seat 9, a second adjusting seat 10, a pair of longitudinal racks 11, and a... Adjusting gear 12; wherein, the first adjusting seat 9 is rotatably connected to all longitudinal straightening pressure rollers 4 in the front row, and the second adjusting seat 10 is rotatably connected to all longitudinal straightening pressure rollers 4 in the rear row. The longitudinal ends of the first adjusting seat 9 and the second adjusting seat 10 are respectively fixedly mounted with longitudinal racks 11. The adjusting gear 12 is rotatably installed in the middle position of the assembly cavity. The two longitudinal racks 11 are arranged parallel in the longitudinal direction, and their tooth surfaces are respectively meshed on both sides of the longitudinal direction of the adjusting gear 12. By rotating the adjusting gear 12, the two meshing longitudinal racks 11 are driven to move synchronously in opposite or same directions in the longitudinal direction. Then, the two longitudinal racks 11 respectively drive the first adjusting seat 9 and the second adjusting seat 10 to move synchronously in the longitudinal unit cavity 7. Finally, the first adjusting seat 9 and the second adjusting seat 10 drive the front and rear rows of longitudinal straightening pressure rollers 4 to achieve precise adjustment of the longitudinal spacing.

[0018] The wire base 1 of this straightening machine can be understood as a production line. It serves as the supporting foundation for the longitudinal and transverse straightening rollers 2. Two rows of transverse straightening rollers 2 are mounted on top of it, arranged along the billet conveying direction with a spacing adapted to the thickness of a standard billet. During operation, the upper and lower transverse straightening rollers 2 adhere to the upper and lower surfaces of the billet, applying pressure, conveying, and completing surface posture correction on both sides of the billet. To ensure that the two wide sides (both longitudinal sides) of the billet can also be straightened simultaneously, a set of longitudinal straightening functions is also installed at the inlet and outlet ends of the wire base 1. Specifically, a set of longitudinal straightening molds 3 is installed at each inlet and outlet end of the wire base 1. The longitudinal straightening molds 3 maintain precise positioning with the wire base 1, ensuring that the two wide sides of the billet are rolled and straightened before entering the transverse straightening station, and ensuring that the two wide sides are rolled and straightened a second time when the billet exits the transverse straightening station.

[0019] The longitudinal straightening mold 3 is equipped with two rows of longitudinal straightening rollers 4. The arrangement direction of the two rows of longitudinal straightening rollers 4 is perpendicular to the billet conveying direction. The front row of longitudinal straightening rollers 4 rolls and straightens the rear side of the billet, and the rear row of longitudinal straightening rollers 4 rolls and straightens the front side of the billet, thus completing the synchronous straightening of both sides.

[0020] Compared with the existing technology, the method to achieve adjustable spacing between the front and rear rows of longitudinal straightening rollers 4, and to achieve this adjustment without disassembling the mold, is as follows: A longitudinal assembly cavity 6 is provided in the longitudinal straightening mold 3. This assembly cavity has two rows of longitudinal unit cavities 7, which provide sliding installation space for the front and rear rows of longitudinal straightening rollers 4. The two rows of longitudinal straightening rollers 4 are slidably embedded in the front and rear rows of longitudinal unit cavities 7, and the sliding direction is perpendicular to the front and rear sides of the billet width direction. After the front and rear rows of longitudinal straightening rollers 4 adjust their positions longitudinally along their respective longitudinal unit cavities 7, they can press onto the front and rear sides of the billet, thereby adjusting the longitudinal spacing between the two rows of longitudinal straightening rollers 4 according to the width of the billet.

[0021] Compared with the prior art, the longitudinal assembly cavity 6 is equipped with a longitudinal adjustment mechanism, which is the actuator for adjusting the distance between the front and rear rows of longitudinal straightening rollers 4. This mechanism includes a first adjusting seat 9, a second adjusting seat 10, a pair of longitudinal racks 11 respectively mounted on the first adjusting seat 9 and the second adjusting seat 10, and an adjusting gear 12 meshing with the two longitudinal racks 11. Rotating the adjusting gear 12 clockwise or counterclockwise causes the two longitudinal racks 11 to move in opposite directions in a straight line. The two longitudinal racks 11 drive the corresponding first adjusting seat 9 and second adjusting seat 10 to move in opposite directions in a straight line. The second adjusting seat 10 and the first adjusting seat 9 then drive the two rows of longitudinal straightening rollers 4 to move in opposite directions in a straight line, ultimately ensuring that the front and rear rows of longitudinal straightening rollers 4 press against the two sides of the billet width to meet the straightening conditions. For example, when a wider billet needs to be fitted, rotating the adjusting gear 12 causes the two racks to move in opposite directions, driving the first adjusting seat 9 and the second adjusting seat 10 away from each other. This, in turn, drives the two rows of longitudinal straightening rollers 4 to move outward synchronously, increasing the longitudinal distance between the two rows of longitudinal straightening rollers 4. When a narrower billet needs to be fitted, rotating the adjusting gear 12 in the opposite direction causes the two racks to move in the same direction or towards each other, driving the first adjusting seat 9 and the second adjusting seat 10 closer to each other, decreasing the longitudinal distance between the two rows of longitudinal straightening rollers 4. Through this structure, the longitudinal distance between the two rows of longitudinal straightening rollers 4 can be precisely adjusted without disassembling the mold, adapting to the straightening needs of billets of different widths. This adjustment method is simple, time-saving, requires no multiple operators to work together, has low labor intensity, and is highly efficient. All longitudinal straightening rollers 4 on the same side are installed on the same adjusting seat, and each longitudinal straightening roller 4 slides in a longitudinal unit cavity 7, ensuring motion accuracy and ensuring that each longitudinal straightening roller 4 can press on both sides of the billet in the width direction, improving the straightening quality.

[0022] In another embodiment, the feed and discharge ends of the wire seat 1 are provided with an assembly seat 13, and a U-shaped assembly space 14 is opened in the assembly seat 13. The longitudinal straightening mold 3 is detachably installed in the U-shaped assembly space 14. For example, countersunk holes are opened on both sides of the feed and discharge ends of the wire seat 1, and corresponding countersunk holes are also opened on both sides of the longitudinal straightening mold 3. Then, the longitudinal straightening mold 3 is pushed into the U-shaped assembly space 14 so that the countersunk holes on the same side of both correspond one-to-one. Then, the longitudinal straightening mold 3 is fixed to the U-shaped assembly space 14 by countersunk bolts. Since the longitudinal straightening mold 3 is detachably fixed in the U-shaped assembly space 14, when the mold cannot meet the adjustment requirements, another mold can be replaced to meet the production needs, which reflects the flexible and versatile structural characteristics.

[0023] The longitudinal assembly cavity 6 is located in the middle area of ​​the longitudinal straightening mold 3, and the center line of the longitudinal assembly cavity 6 coincides with the middle section line of the upper and lower rows of transverse straightening rollers 2. This allows the continuously cast steel billet 5 to smoothly enter the transverse straightening process along the corresponding baseline after being straightened by the longitudinal straightening rollers 4. Even if the spacing of the two rows of longitudinal straightening rollers 4 is adjusted, the two sides of the continuously cast steel billet 5 can be straightened according to the width of the billet 5, and then smoothly enter the transverse straightening process to receive the upper and lower rows of transverse straightening rollers 2 to complete the further straightening of the upper and lower surfaces.

[0024] In another embodiment, a lower mounting seat 15 is connected to the bottom end of the longitudinal straightening roller 4. The lower mounting seat 15 slides in the longitudinal unit cavity 7. The longitudinal straightening roller 4 is rotatable, thus it can meet the side roll straightening of the continuously cast steel billet 5. The lower mounting seat 15 is not only the carrier for the rotatable installation of the longitudinal straightening roller 4, but also the displacement seat for adjusting the longitudinal position of the longitudinal straightening roller 4. During longitudinal adjustment, the lower mounting seat 15 moves linearly in the longitudinal unit cavity 7, and the wall surface of the lower mounting seat 15 slides in contact with the cavity wall of the longitudinal unit cavity 7, forming a stable motion condition, reducing lateral movement deviation, and ensuring that after the spacing between the two rows of longitudinal straightening rollers 4 is adjusted, their center lines are always on the same longitudinal straight line, thus improving accuracy.

[0025] The first adjusting seat 9 or the second adjusting seat 10 is fixedly connected to the lower mounting seat 15; the first adjusting seat 9 or the second adjusting seat 10 is also the carrier for the longitudinal movement of the front and rear rows of lower mounting seats 15. The first adjusting seat 9 or the second adjusting seat 10 is slidably assembled in its respective longitudinal unit cavity 7, which not only ensures that the longitudinal movement of the lower mounting seat 15 is in a straight line, but also connects with the rack and serves as a driving bridge connecting the rack and pinion.

[0026] The top of the longitudinal straightening roller 4 is connected to an upper mounting base 16. Columns 17 are installed at the four corners of the top surface of the longitudinal straightening mold 3. A cover plate 18 is installed at the top of each column 17. The bottom surface of the cover plate 18 has several slide rails 19 corresponding one-to-one with the upper mounting base 16. The upper mounting base 16 is slidably assembled within the slide rails 19, and its outer wall slides in contact with the cavity wall of the slide rail 19. The upper mounting base 16 is the top moving carrier of the longitudinal straightening roller 4, and the cover plate 18 is the positioning structure for the longitudinal movement of the upper mounting base 16. The slide rails 19 on the bottom surface of the cover plate 18 are also the positioning guides for installing the upper mounting base 16. The number and position of the slide rails 19 on the bottom surface of the cover plate 18 correspond one-to-one with the vertical unit cavity 7, ensuring that the two rows of longitudinal straightening rollers 4 are arranged in a one-to-one correspondence, further guaranteeing the movement accuracy of the two rows of longitudinal straightening rollers 4 during longitudinal adjustment.

[0027] In another embodiment, a protrusion 20 is provided between two adjacent longitudinal unit cavities 7, and a slide rail 21 is installed on the top surface of the protrusion 20. A slider that fits on the slide rail 21 is provided on the bottom surface of the first adjustment seat 9 and the second adjustment seat 10.

[0028] By utilizing the cooperation between the slide rail 21 and the slider 22, the first adjusting seat 9 and the second adjusting seat 10 will not fall off after installation. At the same time, by utilizing the cooperation between the slide rail 21 and the slider 22, the smoothness of the first adjusting seat 9 and the second adjusting seat 10 moving in opposite directions is improved.

[0029] In another embodiment, the fixed end of the longitudinal rack 11 is provided with a connecting part 23 at a 90-degree angle to it, and the top surface of the connecting part 23 is provided with an inclined surface 24.

[0030] The fixed end can be understood as a cast iron part used to install the longitudinal rack 11. It only serves to fix the rack and extend it to the gear meshing area in a 90-degree (longitudinal) direction.

[0031] In another embodiment, the two ends of the protrusion 20 are provided with chamfered surfaces 25, and the bottom edge of the chamfered surfaces 25 is at the maximum stroke of the longitudinal movement of the first adjusting seat 9 and the second adjusting seat 10.

[0032] The purpose of creating a sloping surface on the top is threefold: first, to save materials; second, to increase the fixed area; and third, to reduce the number of turns when assembling with bolts, thereby improving assembly efficiency.

[0033] In another embodiment, an assembly hole 26 is provided in the middle of the longitudinal assembly cavity 6. A bearing is installed in the assembly hole 26, and a vertically upward rotating shaft 28 is installed in the bearing. An adjusting gear 12 is installed at the top of the rotating shaft 28, and a worm gear 29 is installed at the bottom of the rotating shaft 28. The worm gear 29 meshes with a worm 30. The worm 30 extends horizontally to the outside of the end of the longitudinal straightening mold 3 and is equipped with an operating component 27 for driving its rotation. The operating component 27 is a handwheel or a servo motor.

[0034] The bearing is installed through the mounting hole 26, and the bearing is used as a rotation support to realize the vertical arrangement of the rotating shaft 28. The top of the rotating shaft 28 is equipped with the adjusting gear 12, and the bottom is fixed with the worm wheel 29. The worm wheel 29 and the horizontally arranged worm form a meshing transmission mechanism. The worm extends to the outside of the longitudinal straightening mold 3 and is equipped with the operating part 27. The worm 30 drives the worm wheel 29 to rotate, which drives the rotating shaft 28 to rotate. The rotating shaft 28 drives the gear to rotate, and the gear meshes with the two longitudinal racks 11 to move towards or in opposite directions. The two longitudinal racks 11 drive the first adjusting seat 9 and the second adjusting seat 10 to move towards or in opposite directions in the longitudinal range. The first adjusting seat 9 and the second adjusting seat 10 drive the front and rear rows of lower mounting seats 15 to move towards or in opposite directions in the longitudinal range. The front and rear rows of lower mounting seats 15 drive the front and rear rows of longitudinal straightening pressure rollers 4 to move towards or in opposite directions in the longitudinal range.

[0035] Meanwhile, the operating component 27 can be selected as either a handwheel or a servo motor, offering two specific drive methods. This narrows the protection scope of the core solution and makes the technical solution more practical. Moreover, the worm gear drive control mode enables gear self-locking, ensuring that the position of the two rows of longitudinal straightening pressure rollers 4 does not change after the spacing is adjusted, resulting in a simple structure.

[0036] In another embodiment, the longitudinal straightening roller 4 adopts a bimetallic composite structure, with its roller core made of 45# steel and its roller surface made of wear-resistant hard alloy layer, reducing scratches on the steel billet surface during the straightening process. The hard alloy layer roller surface improves surface hardness and wear resistance, reducing frictional damage between the roller and the steel billet, forming a dual composite structure of rigid support and wear-resistant protection.

[0037] The above orientation references do not represent the specific orientations of each component in this implementation scheme. This implementation scheme is only for the convenience of describing the scheme and to make relative descriptions based on the orientations referenced. In reality, the specific orientations of each component are based on their actual installation and use, as well as the orientation descriptions that are customary to those skilled in the art. This is hereby stated.

[0038] The specific embodiments described above further illustrate the inventive purpose, technical solution, and beneficial effects of the present invention. It should be understood that the above descriptions are merely specific embodiments of the present invention and are not intended to limit the scope of protection of the present invention. In particular, it should be noted that any modifications, equivalent substitutions, or improvements made by those skilled in the art within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A high-precision straightening machine for continuously cast stainless steel billets with pressure rollers, characterized in that, The system includes a wire base (1), with two rows of horizontal straightening rollers (2) mounted on top of the wire base (1); a longitudinal straightening mold (3) is installed at the inlet and outlet ends of the wire base (1), and two rows of longitudinal straightening rollers (4) are arranged on the longitudinal straightening mold (3) to straighten the upper and lower surfaces of the continuously cast steel billet (5) being conveyed; a longitudinal assembly cavity (6) is opened inside the longitudinal straightening mold (3), and several longitudinal unit cavities (7) are provided inside the longitudinal assembly cavity (6), and the two rows of longitudinal straightening rollers (4) are respectively slidably embedded in each of the longitudinal unit cavities (7), and the sliding direction of the two rows of longitudinal straightening rollers (4) is perpendicular to the billet conveying direction; a synchronous longitudinal adjustment mechanism (8) is installed inside the longitudinal assembly cavity (6), and the synchronous longitudinal adjustment mechanism (8) includes a first adjustment seat (9), a second adjustment seat (10), a pair of longitudinal racks (11) and an adjustment gear (12); wherein, the first An adjustment seat (9) is rotatably connected to all longitudinal straightening rollers (4) in the front row, and a second adjustment seat (10) is rotatably connected to all longitudinal straightening rollers (4) in the rear row. The longitudinal ends of the first adjustment seat (9) and the second adjustment seat (10) are respectively fixed with longitudinal racks (11). The adjustment gear (12) is rotatably installed in the middle of the assembly cavity. The two longitudinal racks (11) are arranged parallel in the longitudinal direction, and their tooth surfaces are respectively meshed on both sides of the longitudinal direction of the adjustment gear (12). By rotating the adjustment gear (12), the two meshing longitudinal racks (11) are driven to move synchronously in opposite or same direction in the longitudinal direction. Then, the two longitudinal racks (11) drive the first adjustment seat (9) and the second adjustment seat (10) to move synchronously in the longitudinal unit cavity (7). Finally, the first adjustment seat (9) and the second adjustment seat (10) drive the two rows of longitudinal straightening rollers (4) in the front and rear rows to achieve precise adjustment of the longitudinal spacing.

2. The high-precision straightening machine for continuous casting of stainless steel billets with pressure rollers according to claim 1, characterized in that, The feed and discharge ends of the line seat (1) are provided with an assembly seat (13), and a U-shaped assembly space (14) is provided in the assembly seat (13). The longitudinal straightening mold (3) is detachably installed in the U-shaped assembly space (14). The longitudinal assembly cavity (6) is opened in the middle area of ​​the longitudinal straightening mold (3), and the center line of the longitudinal assembly cavity (6) coincides with the middle section line of the upper and lower rows of transverse straightening pressure rollers (2), so that the continuous casting billet (5) can smoothly enter the transverse straightening process along the corresponding baseline after longitudinal straightening.

3. A high-precision straightening machine for continuously cast stainless steel billets with pressure rollers according to claim 2, characterized in that, The bottom end of the longitudinal straightening roller (4) is connected to a lower mounting seat (15), which slides in the longitudinal unit cavity (7) and its outer wall surface slides in contact with the cavity wall of the longitudinal unit cavity (7). The first adjusting seat (9) or the second adjusting seat (10) is fixedly connected to the lower mounting seat (15). The top end of the longitudinal straightening roller (4) is connected to an upper mounting seat (16). The top surface of the longitudinal straightening mold (3) is equipped with columns (17) at the four corners. The top end of the columns (17) is equipped with a cover plate (18). The bottom surface of the cover plate (18) is provided with several slides (19) that correspond one-to-one with the upper mounting seat (16). The upper mounting seat (16) is slidably assembled in the slides (19) and its outer wall slides in contact with the cavity wall of the slides (19).

4. A high-precision straightening machine for continuously cast stainless steel billets with pressure rollers according to claim 3, characterized in that, A protrusion (20) is provided between two adjacent longitudinal unit cavities (7). A slide rail (21) is installed on the top surface of the protrusion (20). A slider (22) that cooperates with the slide rail (21) is provided on the bottom surface of the first adjustment seat (9) and the second adjustment seat (10).

5. A high-precision straightening machine for continuously cast stainless steel billets with pressure rollers according to claim 4, characterized in that, The fixed end of the longitudinal rack (11) is provided with a connecting part (23) at a 90-degree angle to it, and the top surface of the connecting part (23) is provided with an inclined surface (24).

6. A high-precision straightening machine for continuously cast stainless steel billets with pressure rollers according to claim 5, characterized in that, The protrusion (20) has chamfered surfaces (25) at both ends, and the bottom edge of the chamfered surface (25) is the maximum stroke of the longitudinal movement of the first adjusting seat (9) and the second adjusting seat (10).

7. A high-precision straightening machine for continuously cast stainless steel billets with pressure rollers according to claim 6, characterized in that, The longitudinal assembly cavity (6) has an assembly hole (26) in the middle. A bearing is installed in the assembly hole (26). A vertically upward rotating shaft (28) is installed in the bearing. The adjusting gear (12) is installed at the top of the rotating shaft (28). A worm gear (29) is installed at the bottom of the rotating shaft (28). The worm gear (29) meshes with a worm (30). The worm (30) extends horizontally to the outside of the end of the longitudinal straightening mold (3) and is equipped with an operating component (27) for driving its rotation. The operating component (27) is a handwheel or a servo motor.

8. A high-precision straightening machine for continuously cast stainless steel billets with pressure rollers according to claim 7, characterized in that, The longitudinal straightening roller (4) adopts a bimetallic composite structure, with its roller core made of No. 45 steel and its roller surface made of wear-resistant hard alloy layer, which reduces the scratches on the steel billet surface during the straightening process.

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