A thin-gauge rolling equipment for hot-rolled coils

Abstract

This invention discloses a thin-gauge rolling equipment for hot-rolled coils. A positioning support roller is sleeved between the combined clamping frame and the combined clamping block. A rolling fixing roller is sleeved on the side of the limiting fixing box. A synchronous transmission box is installed on the side of the support mounting frame. A width-fixing rolling roller is sleeved on the side of the linkage fixing frame near the support mounting frame. Hydraulic motors are mounted on one end of the support mounting frame and one end of the linkage fixing frame via motor mounts. Through multi-step combined processing, the overall dimensional variation of the steel strip is reduced. Simultaneously, the width fixing, flattening, and cleaning operations are combined to reduce the deformation of the rolling equipment caused by thermal expansion, which leads to edge extension of the steel strip. This reduces the dimensional error of the steel strip rolling, thereby reducing subsequent operations, the number of equipment, and the production time required, ensuring the quality and speed of the produced steel strip.

Description

Technical Field

[0001] This invention relates to the field of hot-rolled coil production technology, specifically to a thin-gauge rolling equipment for hot-rolled coils. Background Technology

[0002] Hot-rolled coils are made from slabs as raw materials, which are heated and then processed into strip steel by roughing and finishing mills. The hot steel strip coming out of the last stand of the finishing mill is cooled to a set temperature by laminar flow and then rolled into a steel strip coil by a coiler. Hot-rolled coils are classified by thickness as follows: thin hot-rolled coils <4 mm, thick hot-rolled coils 4-60 mm, and extra-thick hot-rolled coils 60-115 mm.

[0003] However, when producing thin hot-rolled coils from thick hot-rolled coils, the rolling rolls are subjected to high heat, causing thermal expansion and reduced strength. This reduces the restraining force on the steel strip during rolling, resulting in some steel strips extending to both sides during production. Consequently, subsequent width separation is required. When producing high-carbon steel strips, rolling and pressing cause carbon slag to be discharged from the surface of the steel strip. Existing equipment cannot quickly and thoroughly clean this slag, leading to dimensional errors in the rolling process and affecting both rolling speed and quality. Summary of the Invention

[0004] This invention provides a thin-gauge rolling equipment for hot-rolled coils, which effectively solves the problems mentioned in the background art. When producing thin hot-rolled coils from thick hot-rolled coils, the rolling rolls experience thermal expansion and reduced strength, leading to a decrease in the restraining force on the steel strip. This causes some steel strips to extend to both sides during production, requiring subsequent width separation. Furthermore, when producing high-carbon steel strips, rolling and pressing cause carbon slag to be discharged from the strip surface, which existing equipment cannot quickly and thoroughly clean. This results in slag affecting the dimensional accuracy of the rolled strips, thus impacting the rolling speed and quality.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a thin-gauge rolling equipment for hot-rolled coils, comprising a support mounting frame, a limit mounting frame sleeved at one end of the support mounting frame, lifting hydraulic cylinders symmetrically connected to one end of the support mounting frame, a fixed mounting frame connected to the top ends of the two lifting hydraulic cylinders, and a fixed-width rolling assembly installed on one side of the support mounting frame;

[0006] The fixed-width rolling assembly includes a limiting and fixing box;

[0007] The upper inner side of the support mounting frame is snapped with a limiting fixing box. A combination snap-fit ​​frame is slidably connected to one end of the inner side of the limiting fixing box. A processing electric push rod is installed at one end of the limiting fixing box corresponding to the position of the combination snap-fit ​​frame. Several linkage ropes are installed at equal intervals on the side end of the combination snap-fit ​​frame. A fixed pulley is installed at the position of the linkage ropes on the inner side of the limiting fixing box. A combination snap-fit ​​block is fixedly connected to one end of the linkage rope. Several positioning springs are installed at equal intervals on one end of the combination snap-fit ​​block. A positioning support roller is sleeved between the combination snap-fit ​​frame and the combination snap-fit ​​block.

[0008] A rolling fixing roller is sleeved at the position of the combination snap-fit ​​frame and the combination snap-fit ​​block on the side end of the limiting fixing box. A synchronous transmission box is installed on the side end of the support mounting frame. A combination snap-fit ​​block is snapped onto the output shaft of the synchronous transmission box. The combination snap-fit ​​block and the rolling fixing roller are snapped together by combination pins.

[0009] Several downward hydraulic cylinders are equidistantly installed at the top of the fixed mounting frame, corresponding to the positions of the support mounting frame and the limiting mounting frame. A linkage fixing frame is installed at the bottom of two downward hydraulic cylinders. A combined hydraulic cylinder is symmetrically installed at both ends of the linkage fixing frame. A combined fixing block is installed at one end of the combined hydraulic cylinder.

[0010] A fixed-width rolling roll is sleeved on the side end of the linkage fixing frame near the support mounting frame, and a limited-width and fixed-thickness roll is sleeved on the side end of the linkage fixing frame near the limit mounting frame. A fixed transmission box is snapped onto the side end of the linkage fixing frame, and a linkage sleeve block is snapped onto the output shaft of the fixed transmission box. The linkage sleeve block is snapped onto the fixed-width rolling roll and the limited-width and fixed-thickness roll respectively by a combination pin.

[0011] Hydraulic motors are mounted on motor mounts at the positions of the synchronous transmission box input shaft on one end of the support mounting bracket and the fixed transmission box input shaft on the other end.

[0012] According to the above technical solution, the side end of the rolling fixed roll is provided with a plurality of impact combination holes at equal intervals. A linkage tube frame is sleeved on the side end of the rolling fixed roll. A combination electric push rod is installed at one end of the support mounting frame corresponding to the position of the linkage tube frame. A combination linkage plate is installed at one end of the combination electric push rod. A fixed closing sleeve is snapped at the side end of the linkage tube frame corresponding to the position of the combination linkage plate. The combination linkage plate and the fixed closing sleeve are snapped together by combination pins. A combination inlet pipe is connected through the side ends of multiple combination linkage plates. An impact tube frame is connected through the side end of the fixed mounting frame at equal intervals. A plurality of spray heads are installed at equal intervals on the side end of the impact tube frame. A booster pump is installed through a motor base at the positions of the combination inlet pipe on the support mounting frame and the impact tube frame on the fixed mounting frame. A swing motor is installed through a motor base at one end of the fixed mounting frame. A swing closing plate is snapped onto the output shaft of the swing motor.

[0013] A movable roller is installed on one side of the top of the limiting mounting frame. A leveling and fixing block is installed near the movable roller at the top of the limiting mounting frame. Several locking hydraulic cylinders are installed at equal intervals at the position of the leveling and fixing block on one side of the inner side of the limiting mounting frame. A combined closing block is installed at the top of the locking hydraulic cylinder.

[0014] According to the above technical solution, one end of the combined snap-fit ​​bracket is snapped together with one end of the processing electric push rod, the side end of the linkage rope is attached to the side end of the fixed pulley, the combined snap-fit ​​block is slidably installed inside the limiting and fixing box, and one end of the positioning spring is fixedly connected to one end of the inner side of the limiting and fixing box.

[0015] According to the above technical solution, the longitudinal sections of the positioning support roller, the width-fixed rolling roller, and the width-limiting and thickness-fixed roller are all I-shaped. The side ends of the positioning support roller are rotatably attached to the side ends of the combined clamping frame and the combined clamping block, respectively. The output shafts of the two hydraulic motors are respectively clamped and combined with the input shafts of the synchronous transmission box and the fixed transmission box.

[0016] The linkage pipe rack is connected to the combined inlet pipe via an adapter. One end of each of the two booster pumps is connected to the combined inlet pipe and one end of the impact pipe rack via an adapter, respectively. The swing closing plate is rotatably installed on the side of the fixed mounting frame.

[0017] According to the above technical solution, the side end of the combined closing block is sleeved and combined with the side end of the leveling and fixing block;

[0018] The input ends of the lifting hydraulic cylinder, the pressing hydraulic cylinder, the combined hydraulic cylinder, the hydraulic motor, the combined electric push rod, the booster pump, the swing motor, the locking hydraulic cylinder, and the processing electric push rod are all electrically connected to the output end of the external controller, and the input end of the external controller is electrically connected to the output end of the external power supply.

[0019] According to the above technical solution, a cooling and winding assembly is installed on one side of the limiting mounting bracket;

[0020] The cooling winding assembly includes a processing limit box;

[0021] The top of the limiting mounting bracket is equipped with a processing limiting box, and a cooling pipe rack is connected through the side of the processing limiting box. A processing pump is installed at one end of the processing limiting box corresponding to the position of the cooling pipe rack via a motor mount. Several linkage springs are installed at equal intervals at the top and bottom of the inner side of the processing limiting box. An operating linkage plate is welded to one end of each linkage spring. A reset spring is installed at one end of the operating linkage plate, and a cleaning scraper is installed at one end of the reset spring.

[0022] The limiting mounting bracket has several downward pressure springs welded at equal intervals at one end. The top of each of the downward pressure springs is welded with a positioning downward pressure bracket. The limiting mounting bracket has symmetrically installed linkage hydraulic cylinders on its side. The top of each linkage hydraulic cylinder is installed with a lifting closing bracket. A collecting motor is installed at one end of the lifting closing bracket via a motor base. The output shaft of the collecting motor is engaged with a locking block. A collecting column is rotatably connected to the side end of the lifting closing bracket at the position corresponding to the locking block. Several bonding springs are installed at equal intervals at one end of the lifting closing bracket. A movable bonding bracket is installed at one end of each of the bonding springs. A bonding column is rotatably connected to one end of the movable bonding bracket.

[0023] According to the above technical solution, one end of the processing pump is connected to one end of the cooling tube frame via an adapter, the longitudinal section of the operation linkage plate and the cross section of the movable bonding frame are both U-shaped, and the cleaning scraper is rotatably installed on the side of the operation linkage plate.

[0024] According to the above technical solution, the positioning and pressing frame is slidably installed on the side end of the limiting mounting frame, the moving bonding frame is slidably installed on the side end of the lifting and closing frame, and the input ends of the processing pump, the linkage hydraulic cylinder and the collecting motor are all electrically connected to the output end of the external controller.

[0025] According to the above technical solution, a fixed-width separation component is installed on one side of the support mounting frame;

[0026] The fixed-width separation assembly includes an operating fixture;

[0027] One end of the support mounting frame is connected to an operating fixing frame. Several placement rollers are rotatably connected at equal intervals on the inner side of the operating fixing frame. Width-fixing hydraulic cylinders are equidistantly installed at both ends of the operating fixing frame. Width-fixing separation plates are installed at one end of each of the multiple width-fixing hydraulic cylinders. An electric frequency heating plate is installed at the top of the inner side of the operating fixing frame. Slag discharge holes are opened at both ends of the operating fixing frame near the width-fixing separation plates. Separation electric push rods are symmetrically installed at the top of the operating fixing frame. Separation operating frames are installed at the bottom ends of the separation electric push rods. Separation columns are rotatably connected to the side ends of the separation operating frames. Adjustment electric push rods are snapped into both ends of the operating fixing frame. A laser cutter is installed at one end of each adjustment electric push rod.

[0028] According to the above technical solution, the longitudinal section of the fixed-width separation plate is trapezoidal, the bottom end of the fixed-width separation plate is slidably attached to the side end of the placement roller, and the input ends of the fixed-width hydraulic cylinder, the electric frequency heating plate, the separation electric push rod, the adjusting electric push rod and the laser cutter are all electrically connected to the output end of the external controller.

[0029] Compared with the prior art, the beneficial effects of the present invention are: the present invention has a scientific and reasonable structure and is safe and convenient to use.

[0030] 1. Equipped with a width-fixed rolling assembly, the steel strip is rolled thinner by fixed rolling rolls and width-fixed rolling rolls. Simultaneously, positioning support rollers, the fixed rolling rolls, and the width-fixed rolling rolls adhere and squeeze the strip from the sides, limiting its width. Multi-directional restriction of the sides during processing reduces the strip's lateral expansion due to thermal expansion. Further width-limiting and thickness-fixing rolls and leveling blocks in the subsequent section level and fix the strip's width, further restricting lateral expansion and ensuring stable production and quality. Linked pipe racks, impact pipe racks, and spray heads spray from inside the equipment to the outside, using multi-angle spraying to achieve comprehensive cleaning of the steel strip surface, reducing waste residue. Through multi-step combined processing, the overall dimensional changes of the steel strip are reduced. At the same time, the combination of width setting, flattening, and cleaning operations reduces the deformation of the rolling equipment caused by thermal expansion, which can lead to the edge extension of the steel strip. This reduces the dimensional error of the steel strip rolling, thereby reducing subsequent operations, reducing the number of equipment, reducing the production time required, and ensuring the quality and speed of the produced steel strip.

[0031] By combining the inlet pipe, the linkage pipe rack, and the impact combination hole to spray from the inside out, the side ends of the positioning support roll and the rolling fixed roll are cooled down comprehensively. At the same time, the impact pipe rack and the spray head spray the side ends of the fixed width rolling roll evenly, reducing the thermal expansion caused by the continuous temperature rise due to continuous heat exchange with the steel strip surface. This avoids large-scale thermal expansion changes in dimensions due to continuous temperature rise, thus reducing rolling errors.

[0032] By combining the snap-fit ​​frame, positioning spring, linkage rope, fixed pulley, and limiting the positioning support roller, rolling fixed roller, width-limiting rolling roller, and width-limiting and thickness-limiting roller, the replacement operation is convenient. Furthermore, the combination of overall synchronous operation and split operation allows for quick operation during both overall equipment replacement and maintenance and individual equipment replacement and maintenance, making it convenient for staff to maintain the equipment.

[0033] 2. Equipped with a cooling winding assembly, the steel strip is pushed down by a positioning and pressing frame driven by a downward spring, straightening the steel strip. Then, the collecting motor drives the bonding and collecting column to collect the steel strip. At the same time, the bonding spring drives the moving bonding frame and bonding column to clamp and limit the steel strip, so that the steel strip is always tightly bonded to the side of the bonding and collecting column, preventing it from loosening and causing the steel coil to deform. Meanwhile, the linkage hydraulic cylinder drives the lifting and closing frame to move, ensuring that the bottom of the steel coil is always grounded during collection, preventing deformation of the steel coil due to excessive weight, thus ensuring the stability of winding and the quality of the product.

[0034] The steel strip surface is cleaned and cooled by a pump and cooling pipe rack to remove impurities and bring it to room temperature. Then, a linkage spring drives the operating linkage plate and the return spring to move the cleaning scraper. The steel strip surface is cleaned by moving the steel strip, thus ensuring the cleanliness of the produced steel strip surface.

[0035] 3. Equipped with a width-fixing separation component, the laser cutter is driven by an adjustable electric push rod to fix the width of the steel coil. Then, the width-fixing hydraulic cylinder drives the width-fixing separation plate to separate the steel strip from the waste generated during cutting. Simultaneously, the waste is discharged through the slag discharge hole, the separation electric push rod, the separation operating frame, and the separation column. This allows for rapid width-fixing separation of the steel strip during production and prevents waste from entering the production area, thus ensuring the accuracy of production dimensions and the stability of production. Furthermore, the position can be adjusted by the width-fixing hydraulic cylinder and the adjustable electric push rod, making it easy to adapt to different widths and ensuring the stability and continuity of production.

[0036] In summary, the coordinated operation of the width-fixing rolling assembly and the cooling and coiling assembly enables continuous processing of the steel strip during production. Multi-step cleaning and cooling ensures the dimensional and surface cleanliness of the steel strip. Width-limiting, thickness-fixing, and support-limiting operations reduce strip deformation, guaranteeing product quality. The coordinated operation of the width-fixing rolling assembly and the width-fixing separation assembly limits the strip width during feeding and maintains this width throughout processing, ensuring dimensional accuracy and reducing lateral deformation that could lead to significant dimensional changes. This eliminates the need for subsequent width-fixing operations, ensuring production speed. The interplay of multiple components guarantees both product quality and production speed. Attached Figure Description

[0037] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used in conjunction with embodiments of the invention to explain the invention and do not constitute a limitation thereof. In the drawings:

[0038] Figure 1 This is a three-dimensional structural schematic diagram of the present invention;

[0039] Figure 2 This is a schematic diagram of the structure of the fixed-width rolling assembly of the present invention;

[0040] Figure 3 This is a schematic diagram of the installation structure of the positioning support roller of the present invention;

[0041] Figure 4 This is a schematic diagram of the installation structure of the linkage pipe rack of the present invention;

[0042] Figure 5 This is a schematic diagram of the mounting structure of the fixed-width rolling roll of the present invention;

[0043] Figure 6 This is a schematic diagram of the installation structure of the leveling and fixing block of the present invention;

[0044] Figure 7 This is a schematic diagram of the cooling and winding assembly of the present invention;

[0045] Figure 8 This is a schematic diagram of the mounting structure of the reset spring of the present invention;

[0046] Figure 9 This is a schematic diagram of the fixed-width separation component of the present invention;

[0047] The diagram shows: 1. Support mounting bracket; 2. Limiting mounting bracket; 3. Lifting hydraulic cylinder; 4. Fixed mounting bracket.

[0048] 5. Width-fixed rolling assembly; 501. Limiting and fixing box; 502. Combined clamping frame; 503. Linkage rope; 504. Fixed pulley; 505. Combined clamping block; 506. Positioning spring; 507. Positioning support roller; 508. Rolling fixed roller; 509. Synchronous transmission box; 510. Combined sleeve block; 511. Combined pin; 512. Downward hydraulic cylinder; 513. Linkage fixing frame; 514. Combined hydraulic cylinder; 515. Combined fixing block; 516. Width-fixed rolling roller; 517. Width-limiting and thickness-fixing roller; 518. 519. Fixed transmission box; 520. Linkage sleeve block; 521. Hydraulic motor; 522. Impact combination hole; 523. Linkage pipe rack; 524. Combined electric actuator; 525. Combined linkage plate; 526. Fixed closing sleeve; 527. Combined inlet pipe; 528. Impact pipe rack; 529. Spray head; 530. Booster pump; 531. Swing motor; 532. Swing closing plate; 533. Moving roller; 534. Leveling fixing block; 535. Engaging hydraulic cylinder; 536. Combined closing block; 537. Processing electric actuator;

[0049] 6. Cooling and winding assembly; 601. Processing restriction box; 602. Cooling tube rack; 603. Processing pump; 604. Linkage spring; 605. Operation linkage plate; 606. Reset spring; 607. Cleaning scraper; 608. Downward pressure spring; 609. Positioning downward pressure frame; 610. Linkage hydraulic cylinder; 611. Lifting closing frame; 612. Collection motor; 613. Engaging and connecting block; 614. Adhesive collection column; 615. Adhesive spring; 616. Moving adhesive frame; 617. Adhesive column;

[0050] 7. Width-fixed separation assembly; 701. Operating fixing frame; 702. Placement roller; 703. Width-fixed hydraulic cylinder; 704. Width-fixed separation plate; 705. Electric frequency heating plate; 706. Slag discharge hole; 707. Separation electric push rod; 708. Separation operating frame; 709. Separation column; 710. Adjusting electric push rod; 711. Laser cutter. Detailed Implementation

[0051] The preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are for illustration and explanation only and are not intended to limit the present invention.

[0052] Example: Figure 1-9 As shown, the present invention provides a technical solution, a thin-gauge rolling equipment for hot-rolled coils, including a support mounting frame 1, a limit mounting frame 2 sleeved at one end of the support mounting frame 1, lifting hydraulic cylinders 3 symmetrically clamped at one end of the support mounting frame 1, a fixed mounting frame 4 clamped at the top of the two lifting hydraulic cylinders 3, and a fixed-width rolling component 5 installed on one side of the support mounting frame 1.

[0053] The width-fixed rolling assembly 5 includes a limiting fixing box 501, a combined clamping frame 502, a linkage rope 503, a fixed pulley 504, a combined clamping block 505, a positioning spring 506, a positioning support roller 507, a rolling fixing roller 508, a synchronous transmission box 509, a combined sleeve block 510, a combined pin 511, a downward hydraulic cylinder 512, a linkage fixing frame 513, a combined hydraulic cylinder 514, a combined fixing block 515, a width-fixed rolling roller 516, a width-limiting and thickness-fixing roller 517, and a fixing... Transmission box 518, linkage sleeve block 519, hydraulic motor 520, impact combination hole 521, linkage pipe rack 522, combination electric push rod 523, combination linkage plate 524, fixed closing sleeve 525, combination inlet pipe 526, impact pipe rack 527, spray head 528, booster pump 529, swing motor 530, swing closing plate 531, moving roller 532, leveling fixing block 533, locking hydraulic cylinder 534, combination closing block 535, and processing electric push rod 536;

[0054] A limiting fixing box 501 is snapped into the top inner side of the support mounting bracket 1. A combination locking bracket 502 is slidably connected to one end of the inner side of the limiting fixing box 501. A processing electric push rod 536 is installed at one end of the limiting fixing box 501 corresponding to the position of the combination locking bracket 502. Several linkage ropes 503 are equidistantly installed on the side end of the combination locking bracket 502. A fixed pulley 504 is installed on the inner side of the limiting fixing box 501 corresponding to the position of the linkage rope 503. A combination locking block 505 is fixedly connected to one end of the linkage rope 503. Several positioning springs 506 are equidistantly installed on one end of the combination locking block 505. A positioning support roller 507 is sleeved between the combination locking bracket 502 and the combination locking block 505. The side ends of the positioning support roller 507 are respectively connected to the combination locking bracket. The side ends of the frame 502 and the combination snap-fit ​​block 505 rotate and fit together, which can effectively limit and fix the side end positioning clamp. The side end of the limiting fixing box 501 is sleeved with the rolling fixing roller 508 at the position corresponding to the combination snap-fit ​​frame 502 and the combination snap-fit ​​block 505. One end of the combination snap-fit ​​frame 502 is snapped together with one end of the processing electric push rod 536. The side end of the linkage rope 503 is attached to the side end of the fixed pulley 504. The combination snap-fit ​​block 505 is slidably installed inside the limiting fixing box 501. One end of the positioning spring 506 is fixedly connected to one end of the inner side of the limiting fixing box 501, which can quickly and synchronously operate when positioning and clamping the positioning support roller 507 and the rolling fixing roller 508, ensuring the convenience and speed of operation when combining the limiting.

[0055] A synchronous transmission box 509 is installed on the side of the support mounting frame 1. The output shaft of the synchronous transmission box 509 is snapped with a combined sleeve block 510. The combined sleeve block 510 and the rolling fixed roll 508 are snapped together by a combined pin 511. Several downward hydraulic cylinders 512 are installed at equal intervals at the top of the fixed mounting frame 4, corresponding to the positions of the support mounting frame 1 and the limit mounting frame 2. A linkage fixing frame 513 is installed at the bottom of two downward hydraulic cylinders 512. Combined hydraulic cylinders 514 are symmetrically installed at both ends of the linkage fixing frame 513. A combined fixing block 515 is installed at one end of the combined hydraulic cylinder 514, close to the support mounting frame 1. A fixed-width rolling roll 516 is sleeved on the side end of the linkage fixing frame 513 at the location. A fixed-width and fixed-thickness roll 517 is sleeved on the side end of the linkage fixing frame 513 near the position of the limiting mounting frame 2. The longitudinal sections of the positioning support roll 507, the fixed-width rolling roll 516 and the fixed-width and fixed-thickness roll 517 are all I-shaped, which allows for effective linkage operation during fixed-width rolling. A fixed transmission box 518 is snapped onto the side end of the linkage fixing frame 513. A linkage sleeve block 519 is snapped onto the output shaft of the fixed transmission box 518. The linkage sleeve block 519 is snapped onto the fixed-width rolling roll 516 and the fixed-width and fixed-thickness roll 517 respectively by a combination pin 511.

[0056] Hydraulic motors 520 are mounted on motor mounts at the positions of the support mounting bracket 1 (one end corresponding to the input shaft of the synchronous transmission box 509) and the linkage fixing bracket 513 (one end corresponding to the input shaft of the fixed transmission box 518). The output shafts of the two hydraulic motors 520 are respectively snapped into the input shafts of the synchronous transmission box 509 and the fixed transmission box 518, so that the linkage can be effectively operated when the transmission is snapped in.

[0057] Several impact combination holes 521 are equidistantly opened on the side end of the rolling fixed roll 508. A linkage tube frame 522 is sleeved on the side end of the rolling fixed roll 508. The linkage tube frame 522 is sleeved with the combination inlet pipe 526 through an adapter. One end of the two booster pumps 529 is sleeved with the combination inlet pipe 526 and the impact tube frame 527 respectively through an adapter, so that multiple effective combination operations can be performed during water supply, ensuring the continuous and stable clean water supply and cooling. A combination electric actuator 523 is installed at one end of the support mounting frame 1 corresponding to the position of the linkage tube frame 522. A combination linkage plate 524 is installed at one end of the combination electric actuator 523. A fixed closing sleeve 525 is snapped into the side end of the linkage tube frame 522 corresponding to the position of the combination linkage plate 524. The combination linkage plate 524 and the fixed closing sleeve 525 are snapped together by combination pins 511. The side ends of multiple combination linkage plates 524 are connected through the combination inlet pipe 526.

[0058] The fixed mounting bracket 4 has impact pipe racks 527 that are equidistantly connected to its side ends. Several spray heads 528 are equidistantly installed on the side ends of the impact pipe racks 527. The support mounting bracket 1 and the fixed mounting bracket 4 are equipped with booster pumps 529 via motor mounts at the positions of the combined inlet pipe 526 and the impact pipe racks 527, respectively. One end of the fixed mounting bracket 4 is equipped with a swing motor 530 via a motor mount. The output shaft of the swing motor 530 is engaged with a swing closing plate 531. The swing closing plate 531 is rotatably mounted on the side end of the fixed mounting bracket 4, so that the linkage can be effectively operated during sealing and limiting.

[0059] A movable roller 532 is installed on one side of the top of the limiting mounting frame 2. A leveling and fixing block 533 is installed at the top of the limiting mounting frame 2 near the movable roller 532. The side end of the combined closing block 535 is sleeved and combined with the side end of the leveling and fixing block 533, so that the combined connection can be operated stably. A number of locking hydraulic cylinders 534 are installed at equal intervals on one side of the lifting limiting mounting frame 2 corresponding to the position of the leveling and fixing block 533. The combined closing block 535 is installed on the top of the locking hydraulic cylinder 534.

[0060] The input ends of the lifting hydraulic cylinder 3, the pressing hydraulic cylinder 512, the combined hydraulic cylinder 514, the hydraulic motor 520, the combined electric push rod 523, the booster pump 529, the swing motor 530, the locking hydraulic cylinder 534, and the processing electric push rod 536 are all electrically connected to the output end of the external controller, and the input end of the external controller is electrically connected to the output end of the external power supply.

[0061] A cooling and winding assembly 6 is installed on one side of the limiting mounting bracket 2;

[0062] The cooling and winding assembly 6 includes a processing restriction box 601, a cooling tube rack 602, a processing pump 603, a linkage spring 604, an operation linkage plate 605, a reset spring 606, a cleaning scraper 607, a pressing spring 608, a positioning pressing frame 609, a linkage hydraulic cylinder 610, a lifting closing frame 611, a collecting motor 612, a locking block 613, a bonding collecting column 614, a bonding spring 615, a movable bonding frame 616, and a bonding column 617.

[0063] A processing restriction box 601 is installed at the top of the limiting mounting bracket 2. A cooling pipe rack 602 is connected through the side of the processing restriction box 601. A processing pump 603 is installed at one end of the processing restriction box 601 corresponding to the position of the cooling pipe rack 602 via a motor mount. One end of the processing pump 603 is connected to one end of the cooling pipe rack 602 via an adapter, so that it can operate continuously and stably during water intake. Several linkage springs 604 are installed at equal intervals at the top and bottom of the inner side of the processing restriction box 601. An operating linkage plate 605 is welded to one end of the multiple linkage springs 604. A reset spring 606 is installed at one end of the operating linkage plate 605. A cleaning scraper 607 is installed at one end of the reset spring 606. The cleaning scraper 607 is rotatably installed on the side of the operating linkage plate 605, which facilitates the cleaning of the steel plate surface during cooling and ensures the cleanliness of the steel plate.

[0064] A plurality of downward pressure springs 608 are welded at equal intervals to one end of the limiting mounting bracket 2. Positioning downward pressure brackets 609 are welded to the top of the multiple downward pressure springs 608. The positioning downward pressure brackets 609 are slidably mounted on the side end of the limiting mounting bracket 2, allowing for positioning and restriction at both ends during sliding. A linkage hydraulic cylinder 610 is symmetrically mounted on the side end of the limiting mounting bracket 2. A lifting closing bracket 611 is mounted on the top of the linkage hydraulic cylinder 610. A collecting motor 612 is mounted on one end of the lifting closing bracket 611 via a motor mount. The output shaft of the collecting motor 612 is engaged with a locking block 613. A rotatable abutment is rotatably connected to the side end of the lifting closing bracket 611 at the position corresponding to the locking block 613. The collection column 614 and the lifting closing frame 611 are equipped with several equidistant contact springs 615 at one end. A movable contact frame 616 is installed at one end of each contact spring 615. The longitudinal section of the operating linkage plate 605 and the cross section of the movable contact frame 616 are both U-shaped, which allows for effective positioning during support. The movable contact frame 616 is slidably installed on the side of the lifting closing frame 611, which allows for effective positioning and movement during contact support. One end of the movable contact frame 616 is rotatably connected to the contact column 617. The input ends of the processing pump 603, the linkage hydraulic cylinder 610 and the collection motor 612 are all electrically connected to the output end of the external controller.

[0065] A fixed-width separation component 7 is installed on one side of the support mounting bracket 1;

[0066] The width-fixed separation assembly 7 includes an operating fixing frame 701, a placement roller 702, a width-fixed hydraulic cylinder 703, a width-fixed separation plate 704, an electric frequency heating plate 705, a slag discharge hole 706, a separation electric push rod 707, a separation operating frame 708, a separation column 709, an adjusting electric push rod 710, and a laser cutter 711.

[0067] One end of the support mounting frame 1 is connected to an operating fixing frame 701. Several placement rollers 702 are rotatably connected at equal intervals inside the operating fixing frame 701. The bottom end of the width-fixing separation plate 704 slides against the side end of the placement rollers 702, ensuring stable fixed positioning during production. Width-fixing hydraulic cylinders 703 are equidistantly installed at both ends of the operating fixing frame 701. A width-fixing separation plate 704 is installed at one end of each of the hydraulic cylinders 703. The longitudinal section of the width-fixing separation plate 704 is trapezoidal, facilitating the removal of scrap from the steel plate edges and ensuring the width limit of the steel plate. An electric frequency heating plate 705 is installed at the top inner side of the operating fixing frame 701. Slag discharge holes 706 are provided at both ends of the fixed frame 701 near the fixed width separation plate 704. Separation electric push rods 707 are symmetrically installed at the top of the operating fixed frame 701. Separation operating frame 708 is installed at the bottom of the separation electric push rod 707. Separation column 709 is rotatably connected to the side end of the separation operating frame 708. Adjustment electric push rods 710 are snapped at both ends of the operating fixed frame 701. A laser cutter 711 is installed at one end of the adjustment electric push rod 710. The input ends of the fixed width hydraulic cylinder 703, electric frequency heating plate 705, separation electric push rod 707, adjustment electric push rod 710 and laser cutter 711 are all electrically connected to the output end of an external controller.

[0068] The working principle and usage process of this invention are as follows: The hot steel strip rolled by the roughing mill is placed on the placement roller 702 inside the operating frame 701. The rear feed continuously pushes the steel strip along the placement roller 702 to the position of the laser cutter 711. The adjusting electric push rod 710 drives the laser cutter 711 to move, thereby adjusting the width of the steel strip according to the actual required width. It also allows for edge trimming of the rolled steel strip to prevent uneven edges and inconsistent edge lengths from affecting subsequent rolling production. The steel strip passes through the laser cutter 711... After cutting, the qualified steel strip and scrap are moved to the width-fixing separation plate 704. The width-fixing hydraulic cylinder 703 drives the width-fixing separation plate 704 to the composite size position. The width-fixing separation plate 704 restricts the scrap and separates it from the steel strip. The scrap is discharged through the slag discharge hole 706. At the same time, the separation electric push rod 707 drives the separation operation frame 708 and the separation column 709 to push the scrap downward, thereby discharging the slag. This achieves width fixing and feeding of the steel strip. The steel strip is heated to the temperature required for rolling by the electric frequency heating plate 705.

[0069] After the width is fixed, the steel strip moves to the positions of the support mounting frame 1 and the fixed mounting frame 4. The steel strip is positioned and limited by the positioning support roller 507, and supported and limited by the rolling fixed roller 508 and the positioning support roller 507. A hydraulic motor 520 drives multiple combined sleeve blocks 510 to rotate via a synchronous transmission box 509. The combined sleeve blocks 510 drive the rolling fixed roller 508 to rotate along the limiting fixing box 501, thereby limiting the bottom end of the steel strip and moving the steel strip. A downward hydraulic cylinder 512 drives the linkage fixing frame 513 to press down, causing the width-fixing rolling roller 516 to move down to the side end of the steel strip. The hydraulic motor 520 and the fixed transmission box 518 drive the linkage sleeve block 519 to rotate, which in turn drives the width-fixing rolling roller 516 to press down and roll the top end of the steel strip. During the process, the I-shaped positioning support roller 507 and the width-fixing rolling roller 516 restrict the side ends of the steel strip to prevent it from extending to the side ends, thereby limiting its width. At the same time, through multiple sets of rolling operations, the steel strip is gradually pressed down to roll the thick steel strip into a thin steel strip. During the rolling process, the booster pump 529 injects water into the combined inlet pipe 526 and the linkage pipe frame 522. Water is sprayed through the linkage pipe frame 522 and the impact combination hole 521, and water is sprayed out from multiple positions along the side ends of the positioning support roller 507 to clean the bottom and side ends of the steel strip. At the same time, the booster pump 529 and the impact pipe frame 527 cooperate with each other to spray water through the spray head 528 to clean the top end of the steel strip. By impacting and removing the waste generated by surface rolling, the influence of surface waste on the dimensions of subsequent rolling is reduced, ensuring the stability of the rolling process.

[0070] After rolling, the steel strip moves along the moving roller 532 at the position of the limiting mounting frame 2 to the position of the leveling block 533. The locking hydraulic cylinder 534 drives the combined closing block 535 to rise and fall according to the width of the steel strip. After the combination is completed, the pressing hydraulic cylinder 512 drives the linkage fixing frame 513 to press down. The hydraulic motor 520, the fixed transmission box 518 and the linkage sleeve block 519 drive the width limiting and thickness fixing roller 517 to roll the steel strip again, thereby limiting the thickness and width of the steel strip, thus completing the rolling production of the steel strip.

[0071] When equipment maintenance or replacement is required, the lifting hydraulic cylinder 3 drives the fixed mounting frame 4 to rise, while the swing motor 530 drives the swing closing plate 531 to rotate along the side of the fixed mounting frame 4, thereby separating and unfolding the equipment. During overall replacement, the operator removes the limiting fixing box 501 from the inside of the support mounting frame 1 and fixes the new limiting fixing box 501 to the position of the support mounting frame 1, facilitating the replacement of equipment with different width limits. This also applies to individual positioning support rollers 507, rolling fixing rollers 508, and width-limiting rollers. When replacing the rolling roll 516 and the width-limiting and thickness-fixing roll 517, the processing electric push rod 536 drives the combined clamping frame 502 to move along the limiting fixing box 501. At the same time, the combined clamping frame 502 drives the linkage rope 503 to pull the combined clamping block 505 along the fixed pulley 504. At this time, the positioning spring 506 is compressed, releasing the positioning support roll 507 and the rolling fixed roll 508. By removing the combined pin 511, the combined sleeve block 510 and the rolling fixed roll 508 are disengaged, thus facilitating the quick replacement of the rolling fixed roll 508. During replacement, materials can be quickly removed and replaced. The combined pin 511 is removed from the combined linkage plate 524 and the fixed closing sleeve 525. The combined electric push rod 523 drives the combined linkage plate 524 to move the combined inlet pipe 526, thereby separating the combined inlet pipe 526 from the linkage pipe frame 522. This facilitates the quick removal of the positioning support roller 507 from the position of the limit fixing box 501, allowing for rapid separation and assembly during replacement. The combined hydraulic cylinder 514 drives the combined fixing block 515 to move the fixed width rolling roller 51. 6. Loosen the width-limiting and thickness-fixing roller 517, and separate the width-fixing rolling roller 516 and the width-limiting and thickness-fixing roller 517 from the linkage sleeve block 519 through the combination pin 511. This allows for overall replacement and separate replacement operations when replacing the equipment, which is convenient to operate according to the production situation, ensures the convenience of installation and maintenance, and reduces the labor intensity of maintenance personnel. Through the reverse operation, the new positioning support roller 507, rolling fixed roller 508, width-fixing rolling roller 516 and width-limiting and thickness-fixing roller 517 are fixed to the side of the equipment.

[0072] After the steel strip is rolled, it is moved to the processing restraint box 601. The processing pump 603 and cooling pipe rack 602 drive cooling water to rinse and cool the top and bottom of the steel strip, ensuring the cleanliness of the steel strip surface. Simultaneously, the steel strip is cooled to the required collection position. After cooling, the linkage spring 604 drives the operating linkage plate 605 to press down, and the return spring 606 drives the cleaning scraper 607 to rotate along the operating linkage plate 605. The side of the cleaning scraper 607 contacts the steel strip, scraping away any remaining impurities and wastewater from the surface, thus ensuring the cleanliness of the steel strip surface. The cleaned steel strip is then moved to the positioning pressing frame 609, where the pressing spring 608 drives the positioning pressing frame 609 to pull the steel strip, thereby straightening it. To facilitate subsequent collection, the bonding and collection column 614 is snapped onto the side end of the snap-fit ​​block 613, and the steel strip is bonded to the side end of the bonding and collection column 614. The bonding spring 615 drives the movable bonding frame 616 and the bonding column 617 to bond the side end of the steel strip. The collection motor 612 drives the snap-fit ​​block 613 and the bonding and collection column 614 to rotate, thereby collecting the steel strip by rotation. The bonding spring 615 drives the movable bonding frame 616 to move gradually, so that the side end of the steel strip can always be limited during collection, ensuring the stability of the steel strip bonding and collection. The linkage hydraulic cylinder 610 drives the lifting closing frame 611 to rise, thereby adjusting the position of the lifting closing frame 611 according to the diameter of the collection, so that the side end of the steel coil contacts the ground, ensuring the stability of the load-bearing capacity.

[0073] Finally, it should be noted that the above descriptions are merely preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A thin gauge rolling mill for hot rolled coils, comprising a support stand (1), characterized in that: The support mounting frame (1) is sleeved with a limiting mounting frame (2) at one end, the support mounting frame (1) is symmetrically clamped with a lifting hydraulic cylinder (3) at one end, the top ends of the two lifting hydraulic cylinders (3) are clamped with a fixed mounting frame (4), and a fixed width rolling assembly (5) is mounted on one side of the support mounting frame (1); The fixed width rolling assembly (5) comprises a limiting fixed box (501); The inside top end of the support mounting frame (1) is clamped with the limiting fixed box (501), the inside one end of the limiting fixed box (501) is slidably connected with a combined clamping frame (502), a processing electric push rod (536) is mounted at the position of the limiting fixed box (501) corresponding to the combined clamping frame (502), a plurality of linkage ropes (503) are equidistantly mounted on the side end of the combined clamping frame (502), a fixed pulley (504) is mounted at the position of the limiting fixed box (501) corresponding to the linkage rope (503), one end of the linkage rope (503) is fixedly connected with a combined clamping block (505), a plurality of positioning springs (506) are equidistantly mounted at one end of the combined clamping block (505), and a positioning support roller (507) is sleeved between the combined clamping frame (502) and the combined clamping block (505); A rolling fixed roller (508) is sleeved at the position of the limiting fixed box (501) corresponding to the combined clamping frame (502) and the combined clamping block (505), a synchronous transmission box (509) is mounted on the side end of the support mounting frame (1), a combined sleeving block (510) is clamped on the output shaft of the synchronous transmission box (509), and the combined sleeving block (510) and the rolling fixed roller (508) are clamped in combination through a combined pin (511); A plurality of downward hydraulic cylinders (512) are equidistantly mounted at the top end of the fixed mounting frame (4) corresponding to the positions of the support mounting frame (1) and the limiting mounting frame (2), respectively, a linkage fixed frame (513) is mounted at the bottom ends of the two downward hydraulic cylinders (512), combined hydraulic cylinders (514) are symmetrically mounted on the two ends of the linkage fixed frame (513), and a combined fixed block (515) is mounted at one end of the combined hydraulic cylinder (514); A fixed width rolling roller (516) is sleeved at the side end of the linkage fixed frame (513) close to the position of the support mounting frame (1), a fixed width and thickness roller (517) is sleeved at the side end of the linkage fixed frame (513) close to the position of the limiting mounting frame (2), a fixed transmission box (518) is clamped at the side end of the linkage fixed frame (513), a linkage sleeving block (519) is clamped on the output shaft of the fixed transmission box (518), and the linkage sleeving block (519) is clamped in combination with the fixed width rolling roller (516) and the fixed width and thickness roller (517) through the combined pin (511); Hydraulic motors (520) are mounted on the motor bases at the positions of the input shaft of the synchronous transmission box (509) and the input shaft of the fixed transmission box (518) corresponding to one end of the linkage fixed frame (513) and one end of the support mounting frame (1), respectively. The combination clamping frame (502) is clamped and combined with one end of the processing electric push rod (536), the side end of the linkage rope (503) is attached to the side end of the fixed pulley (504), the combination clamping block (505) is slidingly installed on the inner side of the limiting fixed box (501), and one end of the positioning spring (506) is fixedly connected to one end of the inner side of the limiting fixed box (501).

2. A thin gauge rolling mill for hot rolled coils as claimed in claim 1, wherein, The side end of the rolling fixed roller (508) is equidistantly provided with a plurality of impact combination holes (521), the side end of the rolling fixed roller (508) is sleeved with a linkage pipe frame (522), one end of the support mounting frame (1) is provided with a combination electric push rod (523) at a position corresponding to the linkage pipe frame (522), one end of the combination electric push rod (523) is provided with a combination linkage plate (524), the side end of the linkage pipe frame (522) is clamped with a fixed closed sleeve (525) at a position corresponding to the combination linkage plate (524), and the combination linkage plate (524) and the fixed closed sleeve (525) are clamped and combined through a combination pin (511). The side end of the plurality of combination linkage plates (524) is connected through a combination entering pipe (526), the side end of the fixed mounting frame (4) is equidistantly connected through an impact pipe frame (527), a plurality of spray heads (528) are equidistantly installed on the side end of the impact pipe frame (527), the support mounting frame (1) is provided with a booster pump (529) through a motor seat at positions corresponding to the combination entering pipe (526) and the fixed mounting frame (4) corresponding to the impact pipe frame (527), and one end of the fixed mounting frame (4) is provided with a swing motor (530) through a motor seat. The output shaft of the swing motor (530) is clamped with a swing closed plate (531). The side end of the combination closed block (535) is sleeved and combined with the side end of the fixed flat block (533).

3. A thin gauge rolling mill for hot rolled coils as claimed in claim 2, wherein, The longitudinal sections of the positioning support roller (507), the width-limiting rolling roller (516) and the width-limiting and thickness-limiting roller (517) are all I-shaped, the side ends of the positioning support roller (507) are rotatably attached to the side ends of the combination clamping frame (502) and the combination clamping block (505), respectively, and the output shafts of the two hydraulic motors (520) are clamped and combined with the input shafts of the synchronous transmission box (509) and the fixed transmission box (518), respectively. The linkage pipe frame (522) is sleeved and combined with the combination entering pipe (526) through an adapter, one end of the two booster pumps (529) is sleeved and combined with one end of the combination entering pipe (526) and the impact pipe frame (527) through an adapter, and the swing closed plate (531) is rotatably installed on the side end of the fixed mounting frame (4).

4. A thin gauge rolling mill for hot rolled coils as claimed in claim 2 wherein, The side end of the combination closed block (535) is sleeved and combined with the side end of the fixed flat block (533). The input ends of the lifting hydraulic cylinder (3), the pressing hydraulic cylinder (512), the combined hydraulic cylinder (514), the hydraulic motor (520), the combined electric push rod (523), the pressure increasing pump (529), the swing motor (530), the clamping hydraulic cylinder (534) and the processing electric push rod (536) are electrically connected with the output end of the external controller, and the input end of the external controller is electrically connected with the output end of the external power supply.

5. A thin gauge rolling mill for hot rolled coils as claimed in claim 1 wherein, The limiting mounting frame (2) is provided with a cooling and winding assembly (6) on one side; The cooling and winding assembly (6) comprises a processing limiting box (601); The limiting mounting frame (2) is provided with a processing limiting box (601) at the top end, a cooling pipe rack (602) penetrates through the side end of the processing limiting box (601), a processing pump (603) is mounted on the processing limiting box (601) through a motor base at a position corresponding to the cooling pipe rack (602), a plurality of linkage springs (604) are equidistantly mounted on the inner top end and the inner bottom end of the processing limiting box (601), an operation linkage plate (605) is welded at one end of the plurality of linkage springs (604), a reset spring (606) is mounted at one end of the operation linkage plate (605), and a cleaning scraper (607) is mounted at one end of the reset spring (606); A plurality of pressing springs (608) are equidistantly welded at one end of the limiting mounting frame (2), a positioning pressing frame (609) is welded at the top end of the plurality of pressing springs (608), linkage hydraulic cylinders (610) are symmetrically mounted on the side end of the limiting mounting frame (2), a lifting closing frame (611) is mounted at the top end of the linkage hydraulic cylinders (610), a collecting motor (612) is mounted at one end of the lifting closing frame (611) through a motor base, a clamping clamping block (613) is connected with the output shaft of the collecting motor (612), a close collecting column (614) is rotatably connected at a position corresponding to the clamping clamping block (613) on the side end of the lifting closing frame (611), a plurality of close springs (615) are equidistantly mounted at one end of the lifting closing frame (611), a moving close frame (616) is mounted at one end of the plurality of close springs (615), and a close column (617) is rotatably connected at one end of the moving close frame (616).

6. A thin gauge rolling mill for hot rolled coils as claimed in claim 5 wherein, One end of the processing pump (603) is combined with one end of the cooling pipe rack (602) through an adapter, the longitudinal section of the operation linkage plate (605) and the transverse section of the moving close frame (616) are both in the shape of a Chinese character 'fang', and the cleaning scraper (607) is rotatably mounted on the side end of the operation linkage plate (605).

7. A thin gauge rolling mill for hot rolled coils as claimed in claim 5 wherein, The positioning pressing frame (609) is slidingly mounted on the side end of the limiting mounting frame (2), the moving close frame (616) is slidingly mounted on the side end of the lifting closing frame (611), and the input ends of the processing pump (603), the linkage hydraulic cylinders (610) and the collecting motor (612) are electrically connected with the output end of the external controller.

8. A thin gauge rolling mill for hot rolled coils as claimed in claim 1 wherein, The supporting mounting frame (1) is provided with a width separating assembly (7) on one side; The width separating assembly (7) comprises an operation fixing frame (701); The support mounting frame (1) penetrates one end and is connected with an operation fixing frame (701), the inner side of the operation fixing frame (701) is equidistantly connected with a plurality of placing rollers (702), both ends of the operation fixing frame (701) are equidistantly installed with width fixing hydraulic cylinders (703), one end of the plurality of width fixing hydraulic cylinders (703) is installed with a width fixing separation plate (704), the inner side top end of the operation fixing frame (701) is installed with an electric frequency heating plate (705), the both ends of the operation fixing frame (701) are provided with slag discharge holes (706) near the position of the width fixing separation plate (704), the top end of the operation fixing frame (701) is symmetrically installed with separation electric push rods (707), the bottom end of the separation electric push rods (707) is installed with a separation operation frame (708), the side end of the separation operation frame (708) is rotatably connected with a separation column (709), both ends of the operation fixing frame (701) are clamped with adjustment electric push rods (710), one end of the adjustment electric push rods (710) is installed with a laser cutter (711).

9. A thin gauge rolling mill for hot rolled coils as claimed in claim 8, wherein, The longitudinal section of the width fixing separation plate (704) is trapezoidal, the bottom end of the width fixing separation plate (704) is slidably attached to the side end of the placing roller (702), and the input ends of the width fixing hydraulic cylinder (703), the electric frequency heating plate (705), the separation electric push rod (707), the adjustment electric push rod (710) and the laser cutter (711) are electrically connected with the output end of the external controller.

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