An ultra-thin gauge medium plate rolling device and production process

Abstract

The application provides a kind of ultra-thin gauge medium plate rolling equipment and production process, relating to rolling equipment technical field, including rolling assembly, which includes rough rolling mill, finishing mill, post-rolling cooling machine, hot straightening machine and shearing machine arranged in turn along the medium conveying direction;Turning conveying roller group;Roller type cooling bed;Annular ground rail;Medium plate turnover mechanism is slidably installed on the annular ground rail, and the medium plate turnover mechanism includes a moving seat, and the surface of the moving seat is symmetrically provided with a side plate body;The top between the two groups of side plate bodies is provided with a horizontal guide rail, and the outer portion of the horizontal guide rail is slidably provided with two groups of vertical guide rails, and the inner portion of each group of vertical guide rails is slidably provided with a group of optical detection units;The inner wall bottom of each group of side plate bodies is rotatably provided with a group of slab clamping mechanisms for temporarily storing medium plates;Ultrasonic detection assembly.The application can complete the rapid cooling and transfer conveying of the medium plate after rolling, and complete the internal and external detection of the medium plate during the transfer conveying process.

Description

Technical Field

[0001] This invention relates to the field of rolling equipment technology, specifically to an ultra-thin medium plate rolling equipment and production process. Background Technology

[0002] As a core steel material in automobile manufacturing, home appliance production, and precision machining, ultra-thin medium plates directly determine the processing adaptability and reliability of downstream products based on their mechanical property stability and surface quality. Therefore, the cooling output stage after rolling is a key process in the production of ultra-thin medium plates. This stage not only needs to cool the plate to stabilize its mechanical properties, but also needs to lay the foundation for subsequent testing, shearing and other processes, which has a significant impact on product qualification rate and production efficiency.

[0003] The current cooling output process for ultra-thin medium plates has the following technical defects, hindering the improvement of production quality and efficiency: First, the mismatch between temperature difference control and shearing layout leads to plate deformation. Ultra-thin medium plates can reach lengths of up to 80m, while the industry generally adopts a "cooling bed → subsequent shearing" process, where the shearing machine is fixed downstream of the cooling bed. When the head of the plate enters the cooling bed to begin cooling, the tail is still in a high-temperature state after rolling, resulting in a significant temperature difference between the head and tail during cooling. This temperature difference causes uneven stress distribution within the plate, which on the one hand disrupts the consistency of mechanical properties, and on the other hand easily leads to warping deformation after cooling, increasing the cost of subsequent straightening processes and even producing scrap.

[0004] Secondly, after the ultra-thin medium plate is cooled and output, it is necessary to visually inspect for defects such as surface scratches and oxide scale, and to use ultrasonic testing to detect internal cracks, delamination, and other potential problems to ensure product quality. However, most existing cooling output equipment uses a horizontal conveying structure, where the bottom surface of the medium plate is in close contact with the conveyor rollers or support surface, making it impossible to directly observe the bottom surface condition. This requires the configuration of a tilting frame, which affects production efficiency and increases the length of the production line. Summary of the Invention

[0005] To address the shortcomings of existing technologies, this invention provides an ultra-thin medium plate rolling equipment and production process, solving the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution:

[0007] An ultra-thin medium plate rolling equipment includes a rolling assembly, a deflecting conveyor roller group, a roller cooling bed, and an annular ground rail arranged sequentially along the production line. The deflecting conveyor roller group is located at the shearing machine outlet at the end of the rolling assembly. The roller cooling bed is longitudinally connected to the rear of the deflecting conveyor roller group. The annular ground rail is arranged at the outlet end of the roller cooling bed. Above it are multiple work areas for receiving, visual inspection, flaw detection, and sorting and unloading. The medium plate turnover mechanism is slidably mounted on the annular ground rail via a movable seat.

[0008] The outer edge of the movable seat is symmetrically provided with side plates. Each set of side plates has a set of blank clamping mechanisms rotatably mounted on the bottom of its inner wall. The blank clamping mechanism is a split structure, including a side mounting base, a main clamping arm, and a secondary clamping arm. The side mounting base is fixed to the bottom of the inner wall of the side plate, and has an upper adjusting screw and a lower adjusting screw respectively inside. One end of the main clamping arm and the secondary clamping arm is provided with a first slider and a second slider, respectively, and they are slidably engaged with the corresponding screws. One end of the side mounting base is provided with a drive shaft, which rotates through the side plate and is connected to a drive motor at its outer end. The main clamping arm and the secondary clamping arm form an area for clamping and storing the target plate.

[0009] As the plate turnover mechanism slides relative to the annular ground rail, the slab clamping mechanism has the following positional states: at the receiving position, the slab clamping mechanism is in a horizontally combined state, with the main clamping arm and the auxiliary clamping arm clamping the end of the plate to receive the target plate from the roller cooling bed; at the visual inspection position, the slab clamping mechanism is in a vertically combined state, exposing both sides of the target plate for inspection; at the flaw detection position, the slab clamping mechanism remains in a vertically combined state to continue supporting the target plate; at the sorting and unloading position, the slab clamping mechanism is in a horizontally split state, with the main clamping arm or the auxiliary clamping arm moving outward and pushing the target plate away to the corresponding roller frame set at the sorting and unloading position.

[0010] As a second aspect of the present invention, a rolling production process for an ultra-thin medium plate rolling mill is provided, comprising the following steps:

[0011] S1. Hot plate rolling:

[0012] The medium plate passes through the roughing mill, finishing mill, post-rolling cooler, and hot straightener in sequence; the shearing machine cuts the medium plate to the size suitable for the length of the subsequent roller cooling bed, which facilitates the transport of the steel plate and speeds up the cooling rate; the roughing mill, finishing mill, post-rolling cooler, hot straightener, and shearing machine for segmentation are set up in sequence along the rolling production line;

[0013] S2, Medium Plate Cooling: The turning conveyor roller group turns and conveys the slit medium plate to the roller cooling bed; the medium plate is slowly conveyed on the roller cooling bed and undergoes natural cooling;

[0014] S3, Medium Plate Receiving: The slab clamping mechanism located at the receiving position horizontally merges to receive the medium plate output from the roller cooling bed; the slab clamping mechanism is adjusted to a vertical state, and the two sets of vertical guide rails and optical detection units are adjusted to both sides of the medium plate;

[0015] S4. Visual inspection of the middle plate: Manually observe the external defects of the middle plate, and further confirm the defects by magnification through an optical detection unit; mark the defective areas with defective marks.

[0016] S5. Middle Plate Flaw Detection: The optical detection unit is connected to the ultrasonic probe, and the ultrasonic probe is moved regularly along the horizontal and vertical guide rails to detect flaws in the internal structure of the middle plate; defect markings are imprinted on defective areas.

[0017] S6. Classification Output: Based on whether there are defect markings, the medium plates are classified and output. Qualified medium plates are output through the first roller frame, and unqualified medium plates are output through the second roller frame to the repair station. Repair personnel carry out targeted repairs according to the defect markings. The first roller frame and the second roller frame are set on both sides of the classification unloading station.

[0018] This invention provides an ultra-thin medium plate rolling mill. Compared with the prior art, it has the following advantages:

[0019] 1. In this invention, the shearing machine is placed in front of the roller cooling bed. The shearing machine can cut the middle plate in sections before cooling, thereby shortening the output length of the middle plate to meet the cooling length requirements, reducing the length of the roller cooling bed, and improving the cooling effect and reducing the temperature difference between the head and tail of the middle plate.

[0020] 2. The present invention proposes a slab clamping mechanism with a split structure, which can automatically receive materials in the combined state, avoiding damage to the slab caused by manual handling; in the vertical state, it supports the upright position of the middle plate, which is convenient for simultaneous double-sided inspection and meets the needs of full surface quality inspection; in the split state, it can realize precise classification and pushing, pushing qualified and unqualified middle plates to the corresponding roller conveyor respectively, avoiding jamming and scratches, and working with the side plate and moving seat to realize seamless flow of the middle plate between the receiving, visual inspection, flaw detection and classification unloading positions, improving the overall automation level and efficiency;

[0021] 3. The optical detection unit provides magnified observation and illumination at the visual inspection position to assist manual judgment of surface defects; at the flaw detection position, the ultrasonic probe can be inserted to perform an S-shaped path scan along the guide rail system to reduce missed detections; at the same time, the ultrasonic detection components are centrally arranged on the side of the vertical guide rail, making it convenient for operators to observe real-time images through the ultrasonic display host nearby, and the movable cantilever can adjust the angle of the placement stage to optimize observation conditions. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0023] Figure 1 This diagram shows a top view of the overall structure of the ultra-thin medium plate rolling equipment of the present invention.

[0024] Figure 2 A schematic diagram of the roller cooling bed structure of the present invention is shown;

[0025] Figure 3 A schematic diagram of the plate turnover mechanism in this invention is shown;

[0026] Figure 4 A schematic diagram of the slab clamping mechanism in the vertically joined state of the present invention is shown;

[0027] Figure 5 A schematic diagram of the slab clamping mechanism of the present invention is shown;

[0028] Figure 6 A schematic diagram of the support structure of the present invention is shown;

[0029] Figure 7 A schematic diagram of the horizontally merged slab clamping mechanism of the present invention is shown.

[0030] Figure 8 A schematic diagram of the vertical guide rail connection structure of the present invention is shown;

[0031] Figure 9 It shows Figure 8 A magnified structural diagram at point A;

[0032] Figure 10 A schematic diagram of the side cross-sectional structure of the optical detection unit of the present invention is shown;

[0033] Figure 11 A schematic diagram of the inner end structure of the optical detection unit of the present invention is shown;

[0034] Figure 12 A schematic diagram of the cross-sectional structure of the optical guide tube of the present invention is shown;

[0035] Figure 13 This diagram shows the structure of the ring cover of the present invention in the upward rotating open state;

[0036] As shown in the figure:

[0037] 100. Rolling assembly; 110. Roughing mill; 120. Finishing mill; 130. Post-rolling cooler; 140. Hot straightener; 150. Shearing machine; 160. Transition conveyor roller table.

[0038] 200. Steering conveyor roller assembly; 300. Roller-type cooling bed; 400. Circular ground rail; 410. Material receiving position; 420. Visual inspection position; 430. Flaw detection position; 440. Classified unloading position;

[0039] 500. Middle plate turnover mechanism; 510. Moving seat; 511. Side plate; 520. Horizontal guide rail; 521. Top plate; 530. Vertical guide rail; 531. Vertical groove; 540. Tilting motor; 550. Liquid storage tank; 560. Drain pipe.

[0040] 600. Slab clamping mechanism; 610. Side mounting base; 611. Upper adjusting screw; 612. Lower adjusting screw; 620. Main clamping arm; 621. Main positioning baffle; 622. Long side positioning plate; 623. Short side positioning plate; 624. First slider; 625. First push block; 626. First clearance slot; 630. Secondary clamping arm; 640. Drive motor;

[0041] 700, Support mechanism; 710, Longitudinal guide rail; 711, Sliding bearing plate; 720, Lifting drive rod; 730, Foundation plate; 740, Support; 741, Notch.

[0042] 800. Optical inspection unit; 810. Guide module; 820. Optical guide tube; 821. LED inspection light source; 822. Receiving annular cavity; 823. First light-transmitting hole; 830. Internal lens barrel; 840. Adjustable focusing observation lens; 841. Ring cover; 842. Rotating plate; 843. Back sealing plate; 850. Operating handwheel; 851. Second light-transmitting hole; 852. Annular groove; 853. Return spring; 860. Elastic clamping component; 861. First pressure rod; 862. Second pressure rod; 863. Vertical adjustment groove; 864. Clamping spring; 865. Abutting inclined block; 870. Marking post; 871. Marking paint head; 872. Defect template; 873. Pressure ring; 880. Shielding ring; 881. Third light-transmitting hole;

[0043] 910. First roller frame; 920. Second roller frame. Detailed Implementation

[0044] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention are described clearly and completely. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0045] like Figure 1 - Figure 2 As shown, the present invention provides an ultra-thin medium plate rolling equipment, comprising:

[0046] The rolling assembly 100 includes a roughing mill, a finishing mill, a post-rolling cooler, a hot straightener 140, and a shearing machine 150 arranged sequentially along the central conveying / rolling line direction. It is understood that the shearing machine 150 is used to slit the straightened medium plate; a transition conveyor roller table 160 runs through the interior of the roughing mill, finishing mill, post-rolling cooler, hot straightener 140, and shearing machine 150.

[0047] The steering conveyor roller group 200 is installed at the output end of the shearing machine 150 to longitudinally output the slit medium plate that has been output laterally.

[0048] The roller cooling bed 300 is longitudinally located behind the output end of the steering conveyor roller group 200;

[0049] The annular ground rail 400 is located at the output end of the roller cooling bed 300 (behind the roller cooling bed). Above the annular ground rail 400 are work areas such as receiving position 410, visual inspection position 420, flaw detection position 430 and sorting and unloading position 440. At the same time, the first roller frame 910 and the second roller frame 920 are set on both sides of the sorting and unloading position 440.

[0050] It also includes a medium plate turnover mechanism 500, which is slidably mounted on a circular ground rail 400. In specific implementation, such as... Figure 3 As shown, the middle plate turnover mechanism 500 includes a movable seat 510, and the outer edge of the movable seat 510 is symmetrically provided with side plates 511; a horizontal guide rail 520 is installed on the top between the two sets of side plates 511, and two sets of vertical guide rails 530 are slidably installed on the outside of the horizontal guide rail 520. An optical detection unit 800 is slidably installed inside each set of vertical guide rails 530.

[0051] In one embodiment of the present invention, such as Figure 3 , Figure 4 As shown, each set of side plate bodies 511 has a set of slab clamping mechanisms 600 for temporarily storing the middle plate rotatably mounted on the bottom of its inner wall. In practical applications, the slab clamping mechanism 600 is a split structure. When the middle plate turnover mechanism 500 is in the receiving position 410, the slab clamping mechanism 600 is in a horizontally combined state to receive the middle plate output from the roller cooling bed 300.

[0052] In one embodiment of the present invention, such as Figure 8 , Figure 13 As shown, the proposed optical detection unit 800 includes a guide module 810, which is slidably embedded in the vertical guide rail 530. An optical guide tube 820 is horizontally fixedly mounted in the middle of the guide module 810, and an LED detection light source 821 is embedded in the inner wall of the optical guide tube 820. Figure 10 , Figure 11 As shown, the outer end of the optical guide tube 820 is connected to the inner lens tube 830; a marking component is rotatably mounted on the outer wall of the inner lens tube 830, and an adjustable focusing observation lens 840 is rotatably connected to the outer end of the inner lens tube 830. It can be understood that the marking component is used to imprint defect marking marks on the middle plate; while the interior of the optical guide tube 820 is used to form a standard observation channel.

[0053] When the middle plate turnover mechanism 500 is in the visual inspection position 420, the slab clamping mechanism 600 is in a vertically combined state to expose both sides of the middle plate, and the optical inspection unit 800 magnifies the middle plate body area corresponding to the inspection standard observation channel; when the middle plate turnover mechanism 500 is in the flaw detection position 430, the slab clamping mechanism 600 remains in a vertically combined state, and the ultrasonic probe is inserted into the optical guide tube 820 to conduct flaw detection in a regular manner along the horizontal guide rail 520 and the vertical guide rail 530; when the middle plate turnover mechanism 500 is in the sorting and unloading position 440, the slab clamping mechanism 600 is in a horizontally split state to sort and push out the middle plate.

[0054] In one embodiment of the present invention, such as Figure 3 As shown, an ultrasonic detection component is provided on one side of the vertical guide rail 530, such as... Figure 8 As shown, it includes a placement platform, the back of which is hinged to the outer wall of a vertical guide rail 530 via a movable cantilever, and an ultrasound display host is placed on top of the placement platform. The ultrasound display host is connected to the ultrasound probe via a data cable.

[0055] Based on the above technical concept, it can be understood that:

[0056] This invention arranges the shearing machine 150 in front of the roller cooling bed 300, so that the shearing machine 150 can cut the middle plate in sections before cooling, thereby shortening the output length of the middle plate to meet the cooling length requirements, reducing the length of the roller cooling bed 300, and at the same time improving the cooling effect and reducing the temperature difference between the head and tail of the middle plate.

[0057] Furthermore, by proposing a split structure for the slab clamping mechanism 600, when the slab clamping mechanism 600 is in a horizontally combined state, it can receive the medium plates output from the roller cooling bed 300, achieving automatic material receiving and avoiding the slippage, displacement, and deformation of the medium plates caused by manual handling. When the slab clamping mechanism 600 is in a horizontal-vertical state, it can drive the medium plates to stand upright, which facilitates simultaneous inspection by workers from both sides, solving the problem that synchronous double-sided inspection could not be achieved in previous horizontal conveying processes, and adapting to the requirements of full-surface inspection of medium plates. When the slab clamping mechanism 600 is in a horizontally split state, it can push the slabs separately, accurately pushing qualified / unqualified medium plates to the corresponding roller frames, avoiding the medium plates from jamming or scratching, and achieving automated classification.

[0058] Furthermore, by cooperating with the slab clamping mechanism 600, the side plate body 511, and the moving seat 510, the middle plate can be driven to pass through the receiving position 410, the visual inspection position 420, the flaw detection position 430, and the sorting and unloading position 440 in sequence, so as to achieve seamless connection of the middle plate in "cooling-inspection-sorting", reduce manual intervention, and improve overall efficiency.

[0059] Furthermore, at the visual inspection position 420, the worker first manually observes the appearance of the middle plate. When a defective area is found, the optical inspection unit 800 can be moved to the defective area. The worker can then magnify the middle plate area corresponding to the optical guide tube 820 through the adjustable focusing observation lens 840. The optical guide tube 820 is equipped with an LED detection light source 821, which can form a standard observation channel, reduce external environmental interference, and further facilitate the worker's judgment of the defect type. At the flaw detection position 430, the adjustable focusing observation lens 840 can be rotated to one side, and then the ultrasonic probe can be inserted from the outer end of the optical guide tube 820. In this way, the worker can move the optical inspection unit 800 along the horizontal guide rail 520 and the vertical guide rail 530, and the ultrasonic probe can perform a regular S-shaped flaw detection action, reducing the number of areas missed during flaw detection.

[0060] Furthermore, by concentrating the ultrasonic detection components on one side of the vertical guide rail 530, when the ultrasonic probe is inserted into the optical guide tube 820, workers can observe the internal ultrasonic images through the ultrasonic display host nearby. The movable cantilever can support the placement platform at multiple angles, making it convenient for workers to adjust and observe.

[0061] In one embodiment of the present invention, in order to achieve the receiving, sorting, and output of the middle plate, and to facilitate double-sided inspection. For example... Figure 4 As shown, the proposed slab clamping mechanism 600 includes a side mounting base 610, a main clamping arm 620, and a secondary clamping arm 630. The side mounting base 610 is fixed to the bottom of the inner wall of the side plate 511. The length of the side mounting base 610 is the same as the width of the middle plate and the width of the side plate 511. Furthermore, as shown in the figure... Figure 5 As shown, the side mounting base 610 has an upper adjusting screw 611 inside and a lower adjusting screw 612 inside. One end of the side wall of the main clamping arm 620 has a first slider 624, which is slidably fitted onto the upper adjusting screw 611. One end of the side wall of the auxiliary clamping arm 630 has a second slider, which is slidably fitted onto the lower adjusting screw 612. One end of the side wall of the side mounting base 610 has a drive shaft, which rotates through the side plate 511 and its extended end is connected to the drive motor 640.

[0062] At this point, in the combined state of the slab clamping mechanism 600, the main clamping arm 620 and the auxiliary clamping arm 630 are arranged opposite each other and clamp the end of the middle plate; in the split state of the slab clamping mechanism 600, the main clamping arm 620 or the auxiliary clamping arm 630 moves outward to push out the middle plate, and the area enclosed between the main clamping arm 620 and the auxiliary clamping arm 630 is the clamping and storage area.

[0063] Based on the above technical concept, it can be understood that the main clamping arm 620 and the auxiliary clamping arm 630 of the slab clamping mechanism 600 are driven by the upper adjusting screw 611 and the lower adjusting screw 612. In the combined state, they can symmetrically clamp the ends of the middle plate from both ends, with uniform clamping force to avoid deformation of the ultra-thin middle plate. The clamping and storage area is enclosed by the clamping plate to ensure that the middle plate does not shift during turnover and inspection.

[0064] Furthermore, in the split state, the main clamping arm 620 (suitable for qualified materials) or the auxiliary clamping arm 630 (suitable for unqualified materials) can be moved outwards independently, and the sliding block along the screw can achieve smooth pushing, avoiding jamming of the middle plate; the drive motor 640 drives the drive shaft to rotate, which can adjust the opening orientation of the blank clamping mechanism 600.

[0065] In one embodiment of the present invention, such as Figure 5 As shown, the main clamping arm 620 includes a rectangular main positioning baffle 621 as a base. A long side positioning plate 622 is perpendicularly connected to the long side of the bottom surface of the main positioning baffle 621. A short side positioning plate 623 is provided on the short side of the bottom surface of the main positioning baffle 621. One end of the side wall of the long side positioning plate 622 is close to the first slider 624. A first push block 625 is provided in the middle of the bottom surface of the short side positioning plate 623, and a first clearance slot 626 is symmetrically opened on the bottom surface. The short side positioning plate 623 and the long side positioning plate 622 are L-shaped and the mounting base 610 is installed on the mating side. The outer end of the short side positioning plate 623 has a rounded corner structure.

[0066] Based on the above technical concept, it can be understood that since the long side positioning plate 622 (along the length direction of the middle plate) and the short side positioning plate 623 (along the width direction of the middle plate) of the main clamping arm 620 are L-shaped, when the mounting base 610 is installed on the contact side, a closed clamping area can be formed to prevent the middle plate from slipping off the side, which is suitable for the thin and light characteristics of the ultra-thin middle plate; while the first clearance slot 626 is designed to match the second push block of the auxiliary clamping arm 630, reducing the mating gap, preventing the middle plate end from being embedded and deformed, and improving the clamping stability.

[0067] In one embodiment of the present invention, such as Figure 5 As shown, the secondary clamping arm 630 includes a rectangular secondary positioning baffle. Similarly, a secondary long-side positioning plate is provided on the long side of the bottom surface of the secondary positioning baffle, and a secondary short-side positioning plate is provided on the short side of the bottom surface of the secondary positioning baffle. A second slider is provided at one end of the side wall of the secondary long-side positioning plate. A second push block is symmetrically provided on the top surface of the short-side positioning plate 623. The second push block is embedded in the first clearance slot 626. A second clearance slot adapted to the first push block 625 is opened in the middle of the surface of the short-side positioning plate 623. The secondary short-side positioning plate and the secondary long-side positioning plate are L-shaped and are mounted on the mating side of the base 610. The outer end of the secondary short-side positioning plate has a rounded corner structure.

[0068] Understandably, when the second push block of the auxiliary clamping arm 630 is inserted into the first clearance slot 626 of the main clamping arm 620, the first push block 625 adapts to the second clearance slot, forming a "complementary concave-convex" docking structure to avoid misalignment of the clamping plates and ensure that the middle plate is centered in the clamping area. The secondary long side positioning plate and the secondary short side positioning plate form an L-shaped enclosure, which together with the main clamping arm 620 forms a uniform force application area; when pushing, the second push block (or the first push block 625) concentrates the force on the end of the middle plate to avoid uneven force causing bending.

[0069] In one embodiment of the present invention, to further improve the stability of the slab clamping mechanism 600, such as... Figure 3 As shown, a support mechanism 700 is installed at the bottom of the slab clamping mechanism 600. Further details are as follows: Figure 4 , Figure 7 As shown, the support mechanism 700 includes a longitudinal guide rail 710, which is horizontally disposed on the inner wall of the side plate 511 and located at the bottom of the side mounting base 610. A sliding bearing plate 711 is slidably mounted on the top of the longitudinal guide rail 710. A lifting drive rod 720 is mounted on the surface of the sliding bearing plate 711. The top end of the lifting drive rod 720 is fixedly connected to the base plate 730. An annular support 740 is mounted on the top of the base plate 730. Further as... Figure 6 As shown, the top of the support 740 has a notch 741. It can be understood that when the slab clamping mechanism 600 is in a horizontal state, the support 740 supports the bottom surface of the outer end of the main clamping arm 620 or the auxiliary clamping arm 630. When the slab clamping mechanism 600 is in a vertically combined state, the bottom ends of the main clamping arm 620 and the auxiliary clamping arm 630 pass through the notch 741 of the support 740 and abut against the base plate 730.

[0070] Based on the above technical concept, it can be understood that when the slab clamping mechanism 600 is horizontal, the support 740 of the support mechanism 700 supports the bottom surface of the outer end of the first / secondary clamping arm 630, preventing the outer end from sagging; when vertically joined, the bottom end of the clamping plate passes through the notch 741 of the support 740 and abuts against the base plate 730, forming bottom support to prevent deformation of the clamping plate and ensure the stability of the middle plate in a vertical state. The longitudinal guide rail 710 drives the sliding bearing plate 711 to move, which can adjust the position of the support 740 to adapt to the switching between horizontal and vertical states of the slab clamping mechanism 600; the lifting drive rod 720 drives the base plate 730 to rise and fall, which can finely adjust the support height to ensure that the clamping plate and the middle plate are always in a stable posture and improve the detection accuracy.

[0071] In one embodiment of the present invention, such as Figure 3As shown, a top plate 521 is slidably installed on the top of the horizontal guide rail 520. A set of flip motors 540 are installed at both ends of the top plate 521. The outer end of each set of flip motors 540 is fixedly connected to the top of the vertical guide rail 530. A drain pipe 560 is symmetrically provided on the bottom surface of the horizontal guide rail 520. A storage tank 550 connected to the drain pipe 560 is provided at one end of the top surface of the horizontal guide rail 520. The drain pipe 560 is used to discharge the coupling agent.

[0072] Understandably, in the above solution, the tilting motor 540 at the top of the horizontal guide rail 520 drives the vertical guide rail 530 to rotate. During material receiving, the vertical guide rail 530 rotates to a horizontal position (not obstructing the middle plate), and during inspection, it rotates to a vertical position (fitting both sides of the middle plate), achieving unobstructed switching between "material receiving" and "inspection," thus improving operational convenience. The drain pipe 560 is connected to the storage tank 550, automatically discharging the coupling agent during flaw detection, allowing it to flow evenly along the surface of the middle plate without manual application, improving efficiency. The directional flow of the coupling agent reduces residual contamination, ensuring stable flaw detection signals and improving detection accuracy.

[0073] In one embodiment of the present invention, it should be noted that some defects in the ultra-thin plate are difficult to identify during visual inspection, requiring an additional magnifying glass and making the operation cumbersome; during flaw detection, the operator needs to move the ultrasonic probe back and forth in an S-shape, but currently there is no limiting structure for the movement, the movement path is easy to deviate, and there are easily missed areas; external light interference during detection leads to misjudgment of defects.

[0074] To solve the above problems: In this embodiment, as follows Figure 8 As shown, the vertical guide rail 530 has a vertical groove 531 with openings on both sides inside; the guide module 810 is slidably embedded in the vertical groove 531. The inner diameter of the inner lens barrel 830 is the same as the inner diameter of the optical guide tube 820, and the outer diameter of the inner lens barrel 830 is smaller than the outer diameter of the optical guide tube 820, forming a stepped structure. Further as... Figure 10 As shown, a back sealing plate 843 is vertically provided on the top of the outer wall of the inner lens barrel 830. The back sealing plate 843 is offset from the vertical center line of the inner lens barrel 830. A rotating plate 842 is provided on the back of the ring cover 841. The bottom end of the rotating plate 842 is damped and rotatably connected to the back sealing plate 843. An adjustable focusing observation lens 840 is embedded inside the ring cover 841. Therefore, when the optical inspection unit 800 is in the visual inspection position 420, rotating the rotating plate makes the adjustable focusing observation lens 840 precisely aligned with the inner lens barrel 830, forming a continuous observation optical path, so that the worker can magnify and observe the appearance of the middle plate. When the optical inspection unit 800 is in the flaw detection position 430, the adjustable focusing observation lens 840 is damped and rotated away from the axis of the inner lens barrel 830 to make way for the detection channel so that the ultrasonic probe can be inserted into the optical guide tube 820.

[0075] Understandably, in the above scheme, during visual inspection, the adjustable focusing observation lens 840 of the protective cover 841 faces the inner lens barrel 830, magnifying minute defects without the need for additional tools; during flaw detection, the protective cover 841 rotates around the back sealing plate 843, and the adjustable focusing observation lens 840 disengages from the inner lens barrel 830, leaving space for the ultrasonic probe to be inserted into the optical guide tube 820, achieving seamless switching between "visual inspection" and "flaw detection". In this way, the optical guide tube 820 can constrain and position the ultrasonic probe, which can then move along the vertical guide rail 530 and the horizontal guide rail 520, ensuring the regularity of the movement path; at the same time, the LED detection light source 821 on the inner wall of the optical guide tube 820 provides a directional light source, reducing external light interference; the optical guide tube 820 forms a closed observation area, further improving the clarity of defect identification and reducing the misjudgment rate.

[0076] When defects are detected, the current manual marking methods are inconsistent (e.g., chalk, stickers), making it easy to confuse defect types; the lack of standard references during marking also leads to misjudgments. To solve the above problems: in this embodiment, such as Figure 9 , Figure 12 As shown, the proposed marking component includes an operating handwheel 850 and multiple marking posts 870. The operating handwheel 850 is rotatably mounted on the outer wall of the inner mirror tube 830. The operating handwheel 850 has a second light-transmitting hole 851 arranged in a ring array inside. Each set of marking posts 870 is horizontally and elastically inserted into the interior of each set of second light-transmitting holes 851. Marking paint heads 871 are screwed onto the inner ends of the marking posts 870, and defect templates 872 are provided on the outer ends of the marking posts 870. The marking posts 870 are used to mark the appearance defects and internal structural defects of the plate. Meanwhile, the optical guide tube 820 has an internal cavity 822 for accommodating multiple sets of marking posts 870. The outer end of the cavity 822 is an annular open structure, and the uppermost part of the inner end of the cavity 822 has a first light-transmitting hole 823. The outer wall of the internal lens tube 830 is provided with a shielding ring 880, which is located between the operating handwheel 850 and the ring cover 841. The uppermost part of the shielding ring 880 has a third light-transmitting hole 881, and the marking post 870 to be marked is placed between the first light-transmitting hole 823 and the third light-transmitting hole 881. When the optical inspection unit 800 is in the visual inspection position 420 and the flaw detection position 430, the defect sample 872 located in the third light-transmitting hole 881 is located inside the adjustable focusing observation lens 840.

[0077] Understandably, in the above scheme, the marking post 870 of the operating handwheel 850 corresponds to different defect types (appearance / internal defects), and the defect template 872 provides standard defect images. The defect template 872 showing appearance defects is a transparent cover. Inside the transparent cover are standard images of appearance defects and standard images of internal structural defects. Appearance defects include: iron oxide scale, scratches, pits, dents, inclusions, and color differences; internal structural defects include: pores, shrinkage cavities, inclusions, and cracks.

[0078] Meanwhile, since the defective sample 872 is relatively small, based on the observation of its appearance using the adjustable focusing lens 840, such as Figure 13 As shown, the adjustable-focus observation lens 840 can also be positioned outside the defect template 872. Workers can use the adjustable-focus observation lens 840 to check the defect type, ensuring consistent markings and avoiding confusion. During ultrasonic observation, the adjustable-focus observation lens 840 can be rotated upwards to one side, with the rotation point of the ring cover 841 deviating from the centerline. The rotating plate 842 can further increase the rotation deviation, which allows the outer end of the optical guide tube 820 to be open, facilitating the insertion of the ultrasonic probe. It also allows part of the adjustable-focus observation lens 840 to be positioned outside the defect template 872, ensuring that the ring cover 841 does not obstruct the defect template 872.

[0079] Furthermore, the accommodating cavity 822 cooperates with the shielding ring 880 to expose only the marker post 870 located between the first light-transmitting hole 823 and the third light-transmitting hole 881, while other marker posts 870 are shielded. This prevents other defective samples 872 from being placed inside the adjustable focusing observation lens 840 and causing image interference. The marker post 870 is fixed by an elastic structure and only extends the mark during manual operation, improving the accuracy of the mark.

[0080] In one embodiment of the present invention, as preferred, such as Figure 12 As shown, each set of marker posts 870 has a pressure ring 873 on its outer wall, and an annular groove 852 is opened inside the second light-transmitting hole 851. A return spring 853 is embedded inside the annular groove 852, and the pressure ring 873 is embedded in the annular groove 852 and stops at the outer end of the return spring 853; Figure 8 As shown, a resilient clamping component 860 is mounted directly above the operating handwheel 850, further as... Figure 10 As shown, the elastic pressing component 860 includes a first pressing rod 861, a second pressing rod 862, and an abutting inclined block 865. A vertical adjustment groove 863 is provided on the top of the outer wall of the guide module 810. A compression spring 864 is embedded inside the vertical adjustment groove 863. The inner end of the first pressing rod 861 is slidably embedded in the vertical adjustment groove 863 and positioned at the top of the compression spring 864. The second pressing rod 862 is vertically provided on the outer side wall of the first pressing rod 861. The outer end of the second pressing rod 862 extends outward from the movement trajectory of the annular cover 841. An abutting inclined block 865 is provided on the bottom surface of the outer end of the first pressing rod 861, with the inclined surface of the abutting inclined block 865 facing the third light-transmitting hole 881. In the initial state, the abutting inclined block 865 is located above the marking post 870. At this point, the abutting inclined block 865 moves downward to abut against the marking post 870 located in the third light-transmitting hole 881, causing the marking tip 871 to be marked on the middle plate.

[0081] Understandably, the pressure ring 873 of the marker post 870 cooperates with the return spring 853 to provide elastic cushioning; the abutment block 865 of the elastic clamping component 860 applies force evenly when moving downwards, ensuring that the marker ink head 871 clearly marks the mark, and the extension length of the marker post 870 can be changed by changing the downward force. In the initial state, the abutment block 865 is located above the marker post 870, and the mark is not triggered when there is no external force; the marker ink head 871 is threadedly connected to the marker post 870, and replacement only requires unscrewing the marker ink head, which is convenient.

[0082] At the same time, such as Figure 11 As shown, the designed elastic clamping component 860 has a first pressure rod 861 and a second pressure rod 862, so that the operator can operate it freely as needed. When the adjustable focusing observation lens 840 is rotated upward, the second pressure rod 862 extends outward to protect the ring 841. In this way, the worker can press the outer end of the second pressure rod 862 to drive the marker post 870 to move inward.

[0083] As a second aspect of the present invention, a rolling process for ultra-thin medium plates is provided, the rolling process comprising the following steps:

[0084] S1, Medium Plate Rolling:

[0085] Roughing mill 110: adopts multi-pass large reduction (single-pass reduction rate of 30% to 40%) to quickly break through the recrystallization critical point and refine austenite grains;

[0086] Finishing mill 120: adopts the strategy of "high temperature and low speed + low temperature and high speed": front-end temperature control (≥950℃) ensures deformation penetration, and the rear-end uses ultra-fast cooling to achieve rolling in the non-recrystallization zone (TMCP production process); AGC (automatic thickness control) + hydraulic bending roll system, target thickness tolerance ±0.1mm.

[0087] Post-rolling cooler 130: adopts the "front-end intensive cooling + rear-end sparse cooling" mode, with a cooling rate of 20-40℃ / s.

[0088] Hot Straightening Machine 140: Employs a 9-roll high-strength straightening machine to eliminate residual stress;

[0089] Shearing machine 150: Shears the medium plate so that the size of the medium plate can be adapted to the length requirements of the subsequent roller cooling bed 300, which facilitates transportation and speeds up the cooling process;

[0090] S2, middle plate cooling:

[0091] The steering conveyor roller group transports the medium plate to the roller cooling bed 300; the conveyor wheels on the roller cooling bed 300 slowly transport the medium plate, allowing the medium plate to cool down naturally and the temperature difference between the head and tail of the plate is low.

[0092] S3, Medium Plate Turnover Mechanism 500 Receiving Section:

[0093] The movable seat 510 moves along the circular ground rail to the receiving position 410. The main clamping arm 620 and the auxiliary clamping arm 630 are in a horizontally combined state, with the main clamping arm 620 located above the auxiliary clamping arm 630. The openings of the main clamping arm 620 and the auxiliary clamping arm 630 face the roller-type cooling bed 300. Two sets of tilting motors 540 drive the vertical guide rail 530 to rotate upward to a horizontal state to avoid affecting the steel plate tilting to a vertical position. The support 740 is placed at the outer end of the bottom surface of the auxiliary clamping arm 630.

[0094] The roller cooling bed 300 conveys the middle plate to the two sets of slab clamping mechanisms 600. The two ends of the middle plate are placed in the clamping area surrounded by the main clamping arm 620 and the auxiliary clamping arm 630. The long side positioning plate 622, the short side positioning plate 623, the secondary long side positioning plate, and the secondary short side positioning plate surround the sides of the middle plate.

[0095] The drive motor 640 drives the drive shaft to rotate, which in turn drives one end of the side mounting base 610 to rotate, thereby driving the main clamping arm 620 and the auxiliary clamping arm 630 to rotate to a vertical position; causing the middle plate to rotate upward to a vertical position; the sliding bearing plate 711 moves along the second longitudinal guide rail 710, thereby driving the support 740 to move to the bottom of the main clamping arm 620 and the auxiliary clamping arm 630 in a vertical position; the lifting drive rod 720 drives the base plate 730 to lift up, so that the bottom of the main clamping arm 620 and the auxiliary clamping arm 630 passes through the notch 741 and abuts against the base plate 730. In this way, the support 740 can assist in supporting the main clamping arm 620 and the auxiliary clamping arm 630, improving the stability of the middle plate;

[0096] Subsequently, the flipping motor 540 drives the two sets of vertical guide rails 530 to rotate downwards, so that the vertical guide rails 530 are located on both sides of the middle plate;

[0097] S3. Visual inspection by workers:

[0098] The medium plate turnover mechanism 500 moves to the visual inspection position 420, and the workers standing on both sides of the visual inspection position 420 simultaneously carry out visual inspection operations.

[0099] The worker carefully observes the appearance defects of the middle plate. After discovering a defect, the optical inspection unit 800 is moved along the vertical guide rail 530, which in turn moves along the horizontal guide rail 520, bringing the optical inspection unit 800 to the location of the defect to be verified. The worker observes the magnified appearance of the middle plate through the adjustable focus observation lens 840. Based on the determined defect type, the worker rotates the operating handwheel 850, causing the corresponding marker post 870 to rotate between the first light-transmitting hole 823 and the third light-transmitting hole 881. The shielding ring 880 can shield the marker posts 870 in other areas, ensuring that only the image at the third light-transmitting hole 881 is exposed. At this point, the worker can see the magnified defect sample 872 and the interior of the optical guide tube 820 through the adjustable focus observation lens 840. The LED detection light source 821 can assist in illumination and improve the clarity of observation. At the same time, the enclosure area formed by the optical guide tube 820 can also reduce the influence of external light. The worker, in conjunction with the standard image of the defect sample 872, further checks whether the defect type pre-judged by the worker matches. If it matches, the first pressure rod 861 or the second pressure rod 862 is pushed down, so that the first pressure rod 861 moves along the vertical adjustment groove 863 and compresses the clamping spring 864, which abuts against the inclined block 865 and the outer end of the marking post 870, so that the marking post 870 moves inward. The marking post 870 drives the pressure ring 873 to move along the annular groove 852 and compresses the reset spring 853. The marking paint head 871 passes through the first light-transmitting hole 823 and imprints the defect marking mark at the defect location.

[0100] Different types of defect markings can be marked with different colors or different letters; the paint used for marking is quick-drying paint, and the marking will not be affected by the flaw detection coupling agent and probe movement; the marking paint head 871 and the marking post 870 are threaded screw-on structures. After the marking paint head 871 is used up, the marking paint head 871 can be pushed through the first light-transmitting hole 823 and then unscrewed to replace the marking paint head 871;

[0101] S4. Worker flaw detection inspection:

[0102] The middle plate turnover mechanism 500 moves to the flaw detection position 430, and the workers standing on both sides of the flaw detection position 430 simultaneously perform flaw detection operations; the ring cover 841 is rotated upward, and the rotating plate 842 rotates around the back sealing plate 843 with damping. The ring cover 841 can stop at the designated position. Since the rotation point of the ring cover 841 is off the center line, a part of the bottom of the adjustable focusing observation lens 840 is located outside the third light hole 881, and the outer end of the second pressure rod 862 extends outward from the ring cover 841, while the outer end of the inner lens tube 830 is open.

[0103] The worker inserts the ultrasonic probe into the optical tube 820. The outer wall of the ultrasonic probe is fitted with a rubber sleeve, so that the ultrasonic probe is inserted into the optical tube 820 with an interference fit.

[0104] The 560 drain pipe simultaneously discharges the coupling agent, allowing the coupling agent to flow from top to bottom along the middle plate, eliminating the need for manual application of coupling agent separately;

[0105] The optical detection unit 800 moves along the vertical guide rail 530, and the vertical guide rail 530 moves along the horizontal guide rail 520, so that the ultrasonic probe moves in an S-shape on the side of the middle plate. The ultrasonic display host is fixed to the side wall of the vertical guide rail 530 by the positioning frame, and the worker can see the ultrasonic curve through the ultrasonic display host.

[0106] If a problem is found, turn the operating handwheel 850 so that the marking post 870 corresponding to the defect type is rotated between the first light-transmitting hole 823 and the third light-transmitting hole 881. At this time, the worker can see the magnified defect template 872 through the adjustable focus observation lens 840. The worker can further check whether the defect type he / she has judged matches the standard image of the defect template 872. If it matches, the marking post 870 is pressed against the second light-transmitting hole 851 by the elastic clamping component 860 and a marking mark is imprinted at the defect location.

[0107] S5. Classification Output:

[0108] The medium plate turnover mechanism 500 moves to the classification and unloading position 440. If the medium plate is qualified, the billet clamping mechanism 600 rotates to face the first roller frame 910. The main clamping arm 620 is located above the auxiliary clamping arm 630, and the support 740 is located at the bottom outer end of the auxiliary clamping arm 630. The upper adjusting screw 611 drives the main clamping arm 620 to move horizontally, and the first push block 625 pushes the medium plate to move outward to the first roller frame 910.

[0109] If the middle plate is defective, the slab clamping mechanism 600 rotates so that the opening faces the second roller frame 920. The auxiliary clamping arm 630 is located above the main clamping arm 620, and the support 740 is located at the bottom outer end of the main clamping arm 620. The lower adjusting screw 612 drives the auxiliary clamping arm 630 to move horizontally, and the second push block pushes the middle plate outward to the second roller frame 920. The defective middle plate is output to the repair station through the second roller frame 920, and the repair personnel carry out targeted repairs according to the defect markings.

[0110] After unloading, the medium plate turnover mechanism 500 moves cyclically to the output end of the roller cooling bed 300 via the annular ground rail 400.

[0111] The above embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit it. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A rolling mill for ultra-thin medium plates, characterized in that, include: The rolling assembly, the steering conveyor roller group, the disc cooling bed and the annular ground rail are arranged sequentially along the production line. The steering conveyor roller group is located at the shearing machine exit at the end of the rolling assembly. The disc cooling bed is longitudinally connected to the rear of the steering conveyor roller group. The annular ground rail is arranged at the exit end of the disc cooling bed. Above it are multiple work areas for receiving, visual inspection, flaw detection and sorting unloading. The medium plate turnover mechanism is slidably installed on the annular ground rail through a moving seat. The outer edge of the movable seat is symmetrically provided with side plates. Each set of side plates has a set of blank clamping mechanisms rotatably mounted on the bottom of its inner wall. The blank clamping mechanism is a split structure, including a side mounting base, a main clamping arm, and a secondary clamping arm. The side mounting base is fixed to the bottom of the inner wall of the side plate, and has an upper adjusting screw and a lower adjusting screw respectively inside. One end of the main clamping arm and the secondary clamping arm is provided with a first slider and a second slider, respectively, and they are slidably engaged with the corresponding screws. One end of the side mounting base is provided with a drive shaft, which rotates through the side plate and is connected to a drive motor at its outer end. The main clamping arm and the secondary clamping arm form an area for clamping and storing the target plate. As the plate turnover mechanism slides relative to the annular ground rail, the slab clamping mechanism has the following positional states: at the receiving position, the slab clamping mechanism is in a horizontally combined state, with the main clamping arm and the auxiliary clamping arm clamping the end of the plate to receive the target plate from the roller cooling bed; at the visual inspection position, the slab clamping mechanism is in a vertically combined state, exposing both sides of the target plate for inspection; at the flaw detection position, the slab clamping mechanism remains in a vertically combined state to continue supporting the target plate; at the sorting and unloading position, the slab clamping mechanism is in a horizontally split state, with the main clamping arm or the auxiliary clamping arm moving outward and pushing the target plate away to the corresponding roller frame set at the sorting and unloading position.

2. The ultra-thin medium plate rolling equipment according to claim 1, characterized in that: The main clamping arm uses a rectangular main positioning baffle as its base. Its bottom long side is perpendicularly connected to the long side positioning plate, and the short side is provided with a short side positioning plate, together forming a stable L-shaped integrated structure, which is in close contact with the surface of the side mounting base. One end of the long side positioning plate is arranged near the first slider, and the bottom center of the short side positioning plate is provided with a first push block and symmetrically opened with first clearance slots. The outer end of the short side positioning plate is rounded. The auxiliary clamping arm and the main clamping arm are symmetrical in structure. Both adopt L-shaped baffles and are equipped with mutually cooperating push blocks and notched structures to work together to clamp and push out the target middle plate.

3. The ultra-thin medium plate rolling equipment according to claim 1, characterized in that: The bottom of the slab clamping mechanism is equipped with a support mechanism, which includes a longitudinal guide rail that is horizontally fixed to the inner wall of the side plate and located at the bottom of the side mounting base, and a sliding bearing plate that is slidably assembled on the top of the longitudinal guide rail; a lifting drive rod is installed on the surface of the sliding bearing plate, and a base plate is fixedly connected to the top of the drive rod. An annular support is provided above the base plate, and a notch is opened on the top of the support. When the slab clamping mechanism is in a horizontal state, the support base supports the bottom surface of the outer end of the main clamping arm or the auxiliary clamping arm; when the slab clamping mechanism is in a vertically combined state, the bottom ends of the main clamping arm and the auxiliary clamping arm pass through the notch of the support base and abut against the base plate, thereby achieving precise positioning and bearing during the clamping plate posture conversion process.

4. The ultra-thin medium plate rolling equipment according to claim 1, characterized in that: A horizontal guide rail is installed at the top between each set of side plates. Two sets of vertical guide rails are slidably installed on the outside of the horizontal guide rails. An optical detection unit is slidably installed inside each set of vertical guide rails. The optical inspection unit includes a guide module, an LED inspection light source, and an optical guide tube. The guide module is slidably embedded in a vertical guide rail, and an optical guide tube is horizontally fixedly installed in its middle. The inner wall of the optical guide tube is fitted with an LED inspection light source, and its outer end is connected to an internal lens barrel. The outer wall of the internal lens barrel is rotatably fitted with a marking component for marking defects on the surface of the target plate, and an adjustable focus observation lens is rotatably installed at its end. A standard observation channel is formed inside the optical guide tube.

5. The ultra-thin medium plate rolling equipment according to claim 4, characterized in that: A top plate is slidably installed on the top of the horizontal guide rail, and a set of flip motors is installed at both ends of the top plate. The outer end of each set of flip motors is fixedly connected to the top of the vertical guide rail. A drain pipe is symmetrically provided on the bottom surface of the horizontal guide rail, and a storage tank connected to the drain pipe is provided at one end of the top surface of the horizontal guide rail. The drain pipe is used to discharge the coupling agent.

6. The ultra-thin medium plate rolling equipment according to claim 4, characterized in that: The vertical guide rail has a vertical groove with openings on both sides inside; the guide module is slidably embedded in the vertical groove to achieve smooth sliding; the inner diameter of the internal lens tube is the same as that of the optical guide tube, and its outer diameter is smaller than that of the optical guide tube, forming a stepped structure; a back sealing plate is vertically provided at the top of the outer wall of the internal lens tube, which is offset from the vertical center line of the internal lens tube; a rotating plate is dampedly hinged to the back sealing plate at its bottom end; a ring cover is provided on its front, and an adjustable focusing observation lens is embedded in the cover; When the optical inspection unit is in the visual inspection position, the rotating plate is rotated to make the adjustable focusing observation lens accurately aligned with the inner lens barrel, forming a continuous observation optical path, so that workers can magnify and observe the appearance of the middle plate; when the optical inspection unit is in the flaw detection position, the adjustable focusing observation lens is damped away from the axis of the inner lens barrel to make way for the detection channel, so that the ultrasonic probe can be inserted into the optical guide tube.

7. The ultra-thin medium plate rolling equipment according to claim 4, characterized in that: The marking component includes an operating handwheel and multiple marking posts. The operating handwheel is rotatably mounted on the outer wall of the inner lens barrel, and has several second light-transmitting holes evenly distributed circumferentially inside. Each marking post horizontally and elastically passes through the corresponding second light-transmitting hole, with a marking paint head screwed onto its inner end. A defect template is provided at the outer end of each marking post. The marking posts are used to mark the appearance defects and internal structural defects of the plate. The optical guide tube has a receiving annular cavity that accommodates multiple sets of marking posts. The outer end of the receiving annular cavity is an annular open structure, and a first light-transmitting hole is provided at the top of the inner end of the receiving annular cavity. A shielding ring is provided on the outer wall of the inner lens barrel, located between the operating handwheel and the ring cover. A third light-transmitting hole is provided at the top of the shielding ring, and the marking post to be marked is placed between the first light-transmitting hole and the third light-transmitting hole. When the optical inspection unit is in the visual inspection position and the flaw detection position, the defect template located at the third light-transmitting hole is located inside the adjustable focusing observation lens.

8. The ultra-thin medium plate rolling equipment according to claim 7, characterized in that: Each set of marker posts has a pressure ring on its outer wall. The second light-transmitting hole has an annular groove inside, and a return spring is embedded inside the annular groove. The pressure ring is embedded in the annular groove and stops at the outer end of the return spring. An elastic clamping component is installed directly above the operating handwheel. The elastic clamping component includes a first pressure rod, a second pressure rod, and an abutting wedge. The top of the outer wall of the guide module has a vertical adjustment groove. A clamping spring is embedded inside the vertical adjustment groove. The inner end of the first pressure rod is slidably embedded in the vertical adjustment groove and placed at the top of the clamping spring. The outer end sidewall of the first pressure rod is vertically provided with a second pressure rod. The outer end of the second pressure rod extends outward from the movement trajectory of the annular cover. The bottom surface of the outer end of the first pressure rod is provided with an abutting wedge. The inclined surface of the abutting wedge faces the third light-transmitting hole. In the initial state, the abutting wedge is located above the marker post. The abutting wedge moves downward to abut against the marker post located in the third light-transmitting hole, causing the marker paint head to mark on the middle plate.

9. The ultra-thin medium plate rolling equipment according to claim 1, characterized in that: It also includes an ultrasonic detection assembly, which includes a placement platform and an ultrasonic probe. The back of the placement platform is hinged to the outer wall of a vertical guide rail via a movable cantilever, and an ultrasonic display host is placed on top. The ultrasonic display host is connected to the ultrasonic probe via a data cable.

10. The rolling production process of the ultra-thin medium plate rolling equipment according to any one of claims 1 to 9, characterized in that: Includes the following steps: S1. Hot plate rolling: The medium plate passes through the roughing mill, finishing mill, post-rolling cooler and hot straightener in sequence; The shearing machine cuts the medium plate to a size suitable for the subsequent roller cooling bed, which facilitates the steel plate transportation and speeds up the cooling process; the roughing mill, finishing mill, post-rolling cooler, hot straightener, and shearing machine for segmentation are arranged sequentially along the rolling production line; S2, Medium Plate Cooling: The turning conveyor roller group turns and conveys the slit medium plate to the roller cooling bed; the medium plate is slowly conveyed on the roller cooling bed and undergoes natural cooling; S3, Medium Plate Receiving: The slab clamping mechanism located at the receiving position horizontally merges to receive the medium plate output from the roller cooling bed; the slab clamping mechanism is adjusted to a vertical state, and the two sets of vertical guide rails and optical detection units are adjusted to both sides of the medium plate; S4. Visual inspection of the middle plate: Manually observe the external defects of the middle plate, and further confirm the defects by magnification through an optical detection unit; mark the defective areas with defective marks. S5. Middle Plate Flaw Detection: The optical detection unit is connected to the ultrasonic probe, and the ultrasonic probe is moved regularly along the horizontal and vertical guide rails to detect flaws in the internal structure of the middle plate; defect markings are imprinted on defective areas. S6. Classification Output: Based on whether there are defect markings, the medium plates are classified and output. Qualified medium plates are output through the first roller frame, and unqualified medium plates are output through the second roller frame to the repair station. Repair personnel carry out targeted repairs according to the defect markings. The first roller frame and the second roller frame are set on both sides of the classification unloading station.

Images