Slag scraping equipment and control method thereof

Abstract

The invention discloses slag scraping equipment and a control method thereof. The slag scraping equipment comprises a rack, a plurality of slag scraping mechanisms and a driving mechanism. The rack is provided with a material conveying channel. The multiple slag scraping mechanisms are connected to the rack in a floatable mode and are sequentially arranged in the width direction of the material conveying channel. The driving mechanism is arranged on the rack and connected to the multiple slag scraping mechanisms so as to drive the multiple slag scraping mechanisms to be close to or away from the material conveying channel. In this way, the multiple slag scraping mechanisms are sequentially arranged in the width direction of the material conveying channel and connected to the rack in a floating mode, so that each slag scraping mechanism can independently respond to the fluctuation of the local surface of the material plate. When the plate shape defects such as wave shape, camber or local protrusion exist in the material plate, the contact height of each slag scraping mechanism can be adjusted in a follow-up mode, it is ensured that the slag scraping face is effectively attached to the surface of the material plate all the time, slag scraping dead angles caused by an overall rigid structure are avoided, and the waste slag removal rate is remarkably increased.

Description

Technical Field

[0001] This application relates to the field of material processing technology, and in particular to a slag scraping device and its control method. Background Technology

[0002] In metallurgical, casting, glass manufacturing, and continuous material handling systems, it is often necessary to efficiently remove slag, scale, or impurity films (collectively referred to as "waste residue") from the surface of material plates (such as steel or glass plates). For example, in steel production, waste residue often adheres to the surface of hot-rolled or cold-rolled material plates. If not thoroughly removed, this waste residue not only reduces the surface quality of the material plates, affecting subsequent coating, flaw detection, or finishing processes, but may also detach during conveying or stacking, causing equipment wear and even safety accidents. However, existing systems generally use integral scraper mechanisms, but these are rigid structures that are difficult to conform to uneven material surfaces, resulting in incomplete scraping. Summary of the Invention

[0003] This application provides a slag scraping device and its control method, which can solve at least one of the above-mentioned technical problems.

[0004] In a first aspect, embodiments of this application provide a slag scraping device, comprising: The frame is equipped with a material conveying channel; Multiple slag scraping mechanisms are floatingly connected to the frame and arranged sequentially along the width of the material conveying channel; and The drive mechanism is mounted on the frame and connected to multiple scraping mechanisms to move the multiple scraping mechanisms closer to or further away from the material conveying channel.

[0005] In some embodiments, each of the slag scraping mechanisms includes a slag scraping assembly and a multi-link floating assembly, the slag scraping assembly being buoyantly connected to the frame via the multi-link floating assembly.

[0006] In some embodiments, each of the slag scraping assemblies includes a connector and a scraper, the scraper being mounted on the connector, the connector being connected to the frame via the multi-link floating assembly.

[0007] In some embodiments, the scraper is a flexible scraper.

[0008] In some embodiments, the multi-link floating assembly is a four-link floating assembly. Each four-link floating assembly includes a first link, a second link, a third link, and a fourth link that are hinged sequentially. The first link and the third link are arranged parallel to each other, the second link and the fourth link are arranged parallel to each other, the second link is also connected to the frame, and the fourth link is connected to the corresponding slag scraper assembly.

[0009] In some embodiments, the drive mechanism includes a plurality of drive components and a synchronization bracket, the synchronization bracket being rotatably connected to the frame and drively connected to a plurality of the slag scraping mechanisms, the plurality of drive components being disposed on the frame and connected to the synchronization bracket to drive the synchronization bracket to rotate and to drive the plurality of slag scraping mechanisms to move closer to or away from the material conveying channel.

[0010] In some embodiments, the drive mechanism further includes a plurality of reset elastic elements, one end of each reset elastic element being connected to the frame and the other end of each reset elastic element being connected to the synchronization bracket.

[0011] In some embodiments, one end of each reset elastic element is rotatably connected to the frame, and the other end of each reset elastic element is rotatably connected to the synchronization bracket.

[0012] In some embodiments, the drive element is a telescopic element having a fixed end and a telescopic end, the telescopic end being telescopically connected to the fixed end, the fixed end of each drive element being connected to the frame, and the telescopic end of each drive element being connected to the synchronization bracket.

[0013] Secondly, this application provides a control method for a slag scraping device. This control method is applied to the slag scraping device in any of the above embodiments. The slag scraping device further includes a detection unit and a control unit, which are mounted on a frame. The detection unit and the drive mechanism are both electrically connected to the control unit. The control unit is used to execute the following method steps: The detection unit is used to detect the real-time position of the material sheet in the material conveying channel; wherein, the real-time position is the head position or the tail position of the material sheet. If the real-time position is at the head of the material plate, the scraping mechanism is controlled by the drive mechanism to descend to the first preset position; If the real-time position is at the tail end of the material plate, the scraping mechanism is controlled by the drive mechanism to rise to the second preset position, which is higher than the first preset position.

[0014] The slag scraping device and control method provided in this application include a frame, multiple slag scraping mechanisms, and a drive mechanism. The frame has a material conveying channel. Multiple slag scraping mechanisms are buoyantly connected to the frame and arranged sequentially along the width of the material conveying channel. The drive mechanism is located on the frame and connected to the multiple slag scraping mechanisms to move them closer to or further away from the material conveying channel. Thus, by arranging multiple slag scraping mechanisms sequentially along the width of the material conveying channel and buoyantly connecting them to the frame, each slag scraping mechanism can independently respond to the undulations of the local surface of the material plate. When the material plate has defects such as waviness, sickle-shaped bends, or local protrusions, each slag scraping mechanism can adjust its contact height accordingly, ensuring that the scraped surface always maintains effective contact with the surface of the material plate, avoiding dead angles caused by the overall rigid structure, and significantly improving the waste removal rate. Furthermore, this application establishes a unique dual-movement mechanism through the coordinated operation of a drive mechanism and multiple floating scraping mechanisms: the drive mechanism uniformly controls all scraping mechanisms to move closer to or further away from the material conveying channel, enabling rapid switching between working and avoidance states; while each scraping mechanism, after contacting the material plate, can independently respond to local surface morphology changes based on its own floating function, making slight up-and-down adjustments. This dual mechanism ensures both the synchronization and controllability of the scraping equipment's movements and endows the scraping end face with a high dynamic fit to complex plate shapes, fundamentally overcoming the shortcomings of traditional integral scrapers with unadjustable rigidity. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this application 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 this application. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of the slag scraping device provided in an embodiment of this application.

[0017] Figure 2 for Figure 1 A schematic diagram of the slag scraper assembly.

[0018] Figure 3 for Figure 1 A schematic diagram of the structure of a multi-link floating assembly.

[0019] Figure 4 for Figure 2 A schematic diagram of the middle scraper assembly from another perspective.

[0020] Figure 5 for Figure 2A schematic diagram of the middle scraper.

[0021] Figure 6 This is a flowchart illustrating the control method for the slag scraping equipment provided in an embodiment of this application.

[0022] Explanation of icon numbers: 10. Slag scraping equipment; 100. Frame; 110. Material conveying channel; 200. Slag scraping mechanism; 210. Slag scraping assembly; 211. Connecting part; 212. Scraper; 212a. Mounting through hole; 212b. Connecting part; 212c. Slag scraping part; 212d. Slag scraping plane; 213. Clamping part; 213a. Clamping plate; 214. Locking part; 214a. First limiting part; 214b. Second limiting part; 214c. Locking part; 215. Adjusting part; 215a. Fixing part; 215b. Adjusting part; 220. Multi-link floating assembly; 221. First link; 222. Second link; 223. Third link; 224. Fourth link; 300. Drive mechanism; 310. Drive component; 320. Synchronous support; 330. Chain; 340. Reset elastic component; The realization of the purpose, functional features and advantages of this application will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0023] To make the objectives, technical solutions, and advantages of this application clearer, the embodiments of this application will be described in further detail below with reference to the accompanying drawings.

[0024] In the following description, when referring to the accompanying drawings, the same numbers in different drawings denote the same or similar elements unless otherwise indicated. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with this application. Rather, they are merely examples of apparatuses and methods consistent with some aspects of this application as detailed in the appended claims.

[0025] In the description of this application, it should be understood that the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances. Furthermore, in the description of this application, unless otherwise stated, "multiple" refers to two or more. "And / or" describes the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, or B existing alone. The character " / " generally indicates that the preceding and following related objects are in an "or" relationship.

[0026] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of this application. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0027] Please see Figure 1 This application provides a slag scraping device 10, which can be used to efficiently remove slag, waste residue, or impurity films from material plates (such as steel plates or glass plates). This application uses the slag scraping device 10 as an example of a steel plate slag scraping device for removing waste residue for illustration purposes; other embodiments can be referred to in the implementation.

[0028] The slag scraping device 10 includes a frame 100, multiple slag scraping mechanisms 200, and a drive mechanism 300. The frame 100 is provided with a material conveying channel 110. The multiple slag scraping mechanisms 200 are floatingly connected to the frame 100, and the multiple slag scraping mechanisms 200 are arranged sequentially along the width direction of the material conveying channel 110. The drive mechanism 300 is disposed on the frame 100 and connected to the multiple slag scraping mechanisms 200 to drive the multiple slag scraping mechanisms 200 to move closer to or further away from the material conveying channel 110.

[0029] Thus, this application employs multiple scraping mechanisms 200 arranged sequentially along the width of the material conveying channel 110, each buoyantly connected to the frame 100. This allows each scraping mechanism 200 to independently respond to the unevenness of the local surface of the material plate. When the material plate has defects such as waviness, sickle-shaped bends, or local protrusions, each scraping mechanism 200 can adjust its contact height accordingly, ensuring that the scraping mechanism 200 always maintains effective contact with the surface of the material plate, avoiding scraping dead angles caused by the overall rigid structure, and significantly improving the waste removal rate.

[0030] Furthermore, this application establishes a unique dual movement mechanism through the coordinated operation of the drive mechanism 300 and multiple floating scraping mechanisms 200: the drive mechanism 300 uniformly controls all scraping mechanisms 200 to move closer to or further away from the material conveying channel 110, enabling rapid switching between working and avoidance states; while each scraping mechanism 200, after contacting the material plate, can independently respond to local surface morphology changes of the material plate based on its own floating function, making slight up-and-down adjustments. This dual mechanism ensures both the synchronization and controllability of the scraping equipment 10's actions and endows the scraping end face with a high dynamic fit to complex plate shapes, fundamentally overcoming the shortcomings of traditional integral scrapers with non-adjustable rigidity.

[0031] In some embodiments, the frame 100 is fixedly mounted on the conveyor route of the production line roller conveyor, and its interior forms a material conveying channel 110 for the material sheet to pass through. Multiple scraping mechanisms 200 are arranged in parallel along the transverse width of the material conveying channel 110, covering the entire effective width of the material sheet. Each scraping mechanism 200 is mounted on the frame 100 via a floating connection structure such as a hinge, slide rail, or elastic link, giving the scraping mechanism 200 a certain degree of freedom in the vertical direction (i.e., the height direction of the frame 100), allowing it to automatically adjust its height according to the surface contour of the material sheet.

[0032] The drive mechanism 300 is installed above or on the side of the frame 100, and establishes a mechanical linkage with each scraping mechanism 200 through connecting rods, chains, synchronous shafts, or flexible transmission components. The drive mechanism 300 can be an actuator such as a cylinder, electric push rod, or hydraulic cylinder. When the drive mechanism 300 is activated, it synchronously drives all scraping mechanisms 200 to move downwards, bringing the working ends of the scraping mechanisms 200 closer to the upper surface of the material plate; conversely, when the drive mechanism 300 retracts, it drives the scraping mechanisms 200 to rise, moving them away from the material conveying channel 110 and entering a non-working avoidance state.

[0033] In actual operation, the material sheet passes through the material conveying channel 110 under the action of the production line roller conveyor. When the material sheet reaches the slag scraping area (inside the material conveying channel 110), the drive mechanism 300 is activated, pushing each slag scraping mechanism 200 down to the preset working position. Since each slag scraping mechanism 200 can float independently, even if there are local unevenness, wavy edges, or deviation on the surface of the material sheet, each slag scraping mechanism 200 can still adaptively conform to the corresponding area, achieving uniform and continuous slag scraping operation (the material sheet has relative movement with the slag scraping mechanism 200 under the action of the production line roller conveyor, thus facilitating the slag scraping operation). After slag scraping is completed, the drive mechanism 300 resets, and all slag scraping mechanisms 200 are raised synchronously, reserving a safe space for the next roll or the next piece of material sheet to pass through.

[0034] The working end of the scraping mechanism 200 can be made of wear-resistant rubber, polyurethane, nylon, or other flexible polymer materials to ensure sufficient scraping force to remove waste residue while avoiding mechanical damage to the material substrate. Furthermore, the floating structure of the scraping mechanism 200 can integrate springs, torsion springs, or counterweights to provide appropriate contact pressure and enhance reset stability.

[0035] Please see Figure 1 , Figure 2 and Figure 3In some embodiments, each scraping mechanism 200 includes a scraping assembly 210 and a multi-link floating assembly 220. The scraping assembly 210 is buoyantly connected to the frame 100 via the multi-link floating assembly 220. The scraping assembly 210 is used to directly contact the surface of the material plate and remove attached waste residue. The multi-link floating assembly 220 serves as a connection and support structure, mounting the scraping assembly 210 to the frame 100 in a buoyant manner.

[0036] The multi-link floating assembly 220 can be a four-link floating assembly or a six-link floating assembly, etc. For example, the multi-link floating assembly 220 can be composed of two parallel swing arms, an upper support fixed to the frame 100, and a lower support connected to the scraper assembly 210. The upper ends of the two swing arms are respectively hinged to the upper support on the frame 100, and the lower ends are respectively hinged to the mounting bracket of the scraper assembly 210, forming a stable parallelogram linkage mechanism. This ensures that the scraper assembly 210 maintains a constant working surface posture during vertical movement, avoiding excessive local pressure or uneven scraping due to tilting.

[0037] The scraper assembly 210 includes a mounting bracket and a scraper blade. The scraper blade is made of a flexible, wear-resistant material, such as polyurethane, polymer nylon, or rubber composite material, possessing excellent elastic recovery and wear resistance. The scraper blade is secured to the bottom of the mounting bracket by bolts or quick-release clips for easy replacement and maintenance. When the scraper blade contacts the surface of the material sheet, the flexible material conforms to the slight undulations of the material sheet, achieving a gentle yet effective scraping action, preventing mechanical damage to the substrate.

[0038] During the operation of the slag scraping device 10, the drive mechanism 300 drives all the slag scraping mechanisms 200 to move downwards as a whole, bringing the slag scraping assembly 210 close to the upper surface of the material plate. Subsequently, guided by the multi-link floating assembly 220, each slag scraping assembly 210 independently floats up and down slightly according to the local contour of the material plate. Even if there are height differences or plate shape fluctuations in adjacent areas, each slag scraping assembly 210 can still maintain a close fit, thereby achieving a uniform and continuous slag scraping effect across the entire width.

[0039] The multi-link floating assembly 220 not only provides vertical floating freedom but also has a lateral limiting function to prevent the scraper assembly 210 from shifting or swaying laterally during high-speed movement of the material plate. The multi-link floating assembly 220 balances flexibility and stability, effectively improving the long-term operational reliability of the scraper equipment 10 in harsh metallurgical environments such as high temperature, high humidity, and high dust.

[0040] In some embodiments, each scraper assembly 210 includes a connector 211 and a scraper 212. The scraper 212 is mounted on the connector 211, and the connector 211 is connected to the frame 100 via a multi-link floating assembly 220. The connector 211 serves as a structural support and mounting carrier, undertaking force transmission and positioning functions. The scraper 212 is fixedly mounted on the connector 211, directly contacting the surface of the material plate and performing the task of scraping off waste residue.

[0041] The connector 211 is made of high-strength metal material, such as carbon steel or stainless steel, and has an overall plate-like or frame-like structure. The upper part of the connector 211 is provided with a hinge hole or mounting lug for reliable connection with the lower end swing arm of the multi-link floating assembly 220; the lower part is provided with a mounting groove, threaded hole or snap-fit ​​structure for securely fixing the scraper 212, so that the scraper 212 will not loosen, fall off or deflect at an angle during operation.

[0042] The scraper 212 is made of non-metallic materials with high wear resistance, good elasticity, and high temperature resistance, including but not limited to polyurethane, modified nylon, engineering rubber, or composite polymer materials. For example, the scraper 212 can be a flexible scraper. A flexible scraper can be a rubber scraper or a silicone scraper. The scraping edge of the scraper 212 can be designed as a straight line, an arc, or a wave to adapt to different material surface conditions and scraping efficiency requirements. When in contact with high-temperature material plates, the scraper 212 relies on its own elastic deformation to conform to local uneven areas, effectively removing waste residue while avoiding scratches or indentations on the material plate substrate.

[0043] The connector 211 is floatably connected to the frame 100 via a multi-link floating assembly 220. The multi-link floating assembly 220 includes two parallel swing arms, an upper support fixed to the frame 100, and the connector 211 itself serving as a lower support. The upper ends of the two swing arms are hinged to the upper support of the frame 100, and the lower ends are hinged to both sides of the connector 211, forming a parallelogram mechanism. This mechanism allows the connector 211 to float vertically while maintaining the working surface of the scraper 212 parallel to the material conveying plane, ensuring uniform scraping pressure distribution.

[0044] In actual operation, when the material plate enters the slag scraping area, the drive mechanism 300 pushes all slag scraping components 210 downwards as a whole. After the scraper blades 212 initially contact the surface of the material plate, each connecting part 211, guided by the multi-link floating component 220, independently makes slight adjustments in height according to the local height differences of the material plate. Even if the material plate has complex shapes such as waviness, edge warping, or central protrusion, each scraper blade 212 can still achieve adaptive fitting, completing a slag scraping operation without dead angles or damage.

[0045] Please see Figure 2 , Figure 4and Figure 5 In some embodiments, the slag scraping assembly 210 further includes a clamping member 213, and the scraper 212 is a flexible scraper. A connecting member 211 is configured to connect to the frame 100 of the slag scraping device 10. Along the thickness direction of the scraper 212, the clamping member 213 and the connecting member 211 are located on opposite sides of the scraper 212, with the clamping member 213 connected to the connecting member 211 and cooperating with the connecting member 211 to clamp the scraper 212.

[0046] Thus, by using a flexible scraper instead of the traditional rigid scraper 212, the scraper assembly 210 of this application can automatically conform to local unevenness, thermal deformation, or minor undulations on the material (such as steel plate or glass plate) conveying surface, relying on the elastic deformation capability of the material itself. This adaptive characteristic significantly improves the continuity and thoroughness of scraping, avoiding missed scraping or local accumulation caused by hard contact.

[0047] In addition, the clamping member 213 and the connecting member 211 work together to clamp the scraper 212, forming a surface-to-surface pressing structure, which effectively prevents the scraper 212 from slipping, twisting or falling off under high-speed slag scraping or vibration conditions. This clamping method results in more uniform force distribution, extends the service life of the scraper 212 and ensures safe operation.

[0048] In some embodiments, one end of the connector 211 is fixedly connected to the frame 100 of the slag scraping device 10, and undertakes the function of supporting and positioning the entire slag scraping assembly 210. The connector 211 is made of metal material and has sufficient rigidity and strength to withstand the reaction force and vibration load generated during the slag scraping process.

[0049] The flexible scraper 212 is made of polyurethane, rubber, or polymer composite materials, possessing excellent wear resistance, high-temperature resistance, and elastic deformation capability. For example, the scraper 212 can be a silicone scraper 212 or a rubber scraper 212. The working edge of the scraper 212 forms a scraping plane 212d, which directly contacts the material conveying surface during operation. Relying on its own flexibility, it achieves adaptive fitting to uneven areas of the surface, thereby improving scraping efficiency and reducing local impact.

[0050] The clamping member 213 is located on one side of the scraper 212, and the connecting member 211 is located on the other side of the scraper 212. The two are arranged on two opposing surfaces along the thickness direction of the scraper 212. The clamping member 213 is connected to the connecting member 211 by bolts, clips or quick-release mechanisms, so as to tightly clamp the scraper 212 between the two.

[0051] During actual installation, the operator first places the scraper 212 on the mounting surface of the connector 211, then covers the outside of the scraper 212 with the clamping member 213, and finally locks the clamping member 213 to the connector 211 with fasteners. The entire process requires no special tools and can be completed quickly on-site, significantly improving equipment maintenance efficiency.

[0052] Please continue reading. Figure 2 , Figure 4 and Figure 5 In some embodiments, the slag scraping assembly 210 further includes a locking component 214, which is locked to the clamping member 213, the scraper 212 and the connecting member 211, effectively preventing the scraper 212 from relative displacement, loosening or falling off during operation.

[0053] The locking component 214 provides reliable axial restraint. When the scraper assembly 210 is installed in the scraper equipment 10 and put into operation, the scraper 212 is continuously subjected to the reaction force of the material surface and the vibration of the equipment. If the scraper 212 is fixed solely by the clamping force between the clamping member 213 and the connecting member 211, long-term operation may lead to a decrease in the clamping force, which in turn may cause the scraper 212 to slip or even fail. The locking component 214 actively locks the relative positions of the three components through physical insertion and limiting cooperation, significantly improving structural stability.

[0054] The locking component 214 can employ various common mechanical fastening or limiting structures. For example, the locking component 214 may include a bolt and two nuts, with the bolt passing sequentially through the connector 211, scraper 212, and clamping component 213, and the nuts tightened at both ends to securely press the three components together, achieving reliable axial locking. In another embodiment, the locking component 214 may employ a pin-shaft combined with a snap ring or cotter pin structure, where the pin passes through the three components, and the snap ring or cotter pin restricts its axial movement to prevent it from falling off. Furthermore, the locking component 214 may also be a fastener with external threads, such as an internal hex screw or a self-tapping screw, which can be directly screwed into a pre-set threaded hole on the connector 211 or clamping component 213.

[0055] In some embodiments, the locking component 214 includes a first limiting member 214a, a second limiting member 214b, and a locking member 214c, which together form a through-type adjustable fastening structure. The connecting member 211, the scraper 212, and the clamping member 213 are connected sequentially along the thickness direction of the scraper 212 to achieve reliable positioning and anti-loosening fixation of the three components.

[0056] The locking element 214c is a rod-shaped fastener with external threads, such as a fully threaded screw or a double-ended bolt. The locking element 214c passes sequentially through pre-drilled aligned through holes in the connector 211, scraper 212, and clamping element 213. During installation, the locking element 214c enters the connector 211 from the side opposite to the scraper 212, passes through the scraper 212, and exits the clamping element 213 from the side opposite to the scraper 212, forming a mechanical connection path that runs through all three.

[0057] The first limiting member 214a is located on the side of the connecting member 211 away from the scraper 212, and is typically a hexagonal nut, wing nut, or welded threaded sleeve. The second limiting member 214b is located on the side of the clamping member 213 away from the scraper 212, and its structure is the same as or matches that of the first limiting member 214a. The two ends of the locking member 214c are respectively connected to the first limiting member 214a and the second limiting member 214b through threaded engagement. When the two limiting members are tightened simultaneously, the connecting member 211 and the clamping member 213 move closer to each other along the thickness direction, applying a uniform clamping force to the scraper 212 in the middle, while the locking member 214c itself restricts the relative displacement of the three in the axial direction.

[0058] The locking component 214 features excellent adjustability and maintainability. Operators can flexibly adjust the tightening of the two limiting members according to the material hardness of the scraper 212, the operating temperature, and the slag load, thereby controlling the clamping force. When the scraper 212 wears out and needs replacement, simply loosening the two limiting members allows for quick disassembly of the clamping component 213 and removal of the old scraper 212, significantly reducing downtime.

[0059] In a preferred embodiment, both the first limiting member 214a and the second limiting member 214b are made of anti-loosening nuts, or the thread section of the locking member 214c is coated with thread-locking adhesive to cope with harsh working conditions such as high temperature and vibration, and to prevent the preload from decreasing during long-term operation. In addition, multiple locking members 214 can be arranged at intervals along the length of the scraper 212 to form a multi-point locking system, further improving clamping uniformity and structural rigidity.

[0060] In some embodiments, there are multiple locking components 214, which are arranged sequentially along the length of the scraper 212. This arrangement ensures that the clamping force is evenly distributed throughout the entire length of the scraper 212, effectively avoiding problems such as deformation, slippage, or uneven wear caused by insufficient or excessive force in certain areas.

[0061] Each locking component 214 passes through the connector 211, scraper 212, and clamping component 213, and independently achieves axial locking of the three. Multiple locking components 214 are evenly spaced along the length or non-uniformly arranged according to force requirements, forming a multi-point constraint system, which helps to improve the rigidity and stability of the entire slag scraping assembly 210.

[0062] During actual operation, the scraper 212 is subjected to continuous and unevenly distributed reaction forces when it comes into contact with the material conveying surface. If it is fixed by only a single locking component 214, the middle part of the scraper 212 is prone to warping or slight vibration due to the cantilever effect, which in turn affects the slag scraping effect and accelerates material fatigue. By setting multiple locking components 214, the scraper 212 is clamped in sections, and the degree of freedom of each section is effectively restricted, significantly enhancing the overall fit and anti-disturbance ability.

[0063] The number of locking components 214 can be flexibly adjusted according to the actual length of the scraper 212. For example, for a shorter scraper 212, two locking components 214 can be set, with the two locking components 214 located near both ends; or for a longer scraper 212, three or more locking components 214 can be set, with additional support points in the middle to further improve structural reliability. All locking components 214 use the same specifications, which facilitates standardized production and on-site maintenance.

[0064] Furthermore, the layout of the multiple locking components 214 facilitates subsequent functional integration. For example, when used in conjunction with the adjustment mechanism, each locking position can be independently fine-tuned, enabling precise calibration of the scraper 212's posture.

[0065] In some embodiments, the slag scraping assembly 210 further includes an adjusting member 215 disposed on the clamping member 213 and / or the connecting member 211, and cooperating with the locking member 214 to adjust the position of the scraper 212 along the width direction of the scraper 212.

[0066] The adjusting component 215 is directly integrated into the clamping component 213 and / or the connecting component 211, and is used to work in conjunction with the locking component 214 to realize the position adjustment of the scraper 212 in the width direction.

[0067] The main function of the adjusting component 215 is to fine-tune the installation position of the scraper 212 without replacing the scraper 212 or disassembling the main structure.

[0068] The adjusting component 215 and the locking component 214 form a mating relationship. During adjustment, the locking component 214 is in a loose state, allowing the scraper 212 to slide between the clamping member 213 and the connecting member 211 along the width direction of the scraper 212; when the scraper 212 moves to the target position, the locking component 214 is tightened again, which can securely lock the scraper 212 on the new coordinate. This "loose-adjust-tighten" operation logic ensures both the flexibility of adjustment and the structural reliability during operation.

[0069] The adjusting component 215 can take the form of a mechanical structure such as a push rod, eccentric wheel, slider, or threaded set screw. One end of it acts on the side or end of the scraper 212, and the other end is fixedly or operably connected to the clamping member 213 or the connecting member 211. For example, when the adjusting component 215 is a threaded set screw, rotating the set screw can gradually advance its front end, causing the scraper 212 to move. The entire process requires no special tools and can be quickly completed on-site.

[0070] In some embodiments, the scraper 212 is provided with a mounting through hole 212a, which extends through the scraper 212 along its thickness direction and is used for the locking member 214 to pass through. The mounting through hole 212a extends along the width direction of the scraper 212. This mounting through hole 212a extends in the width direction of the scraper 212, forming an oblong hole, a rectangular groove structure. This extended design provides the necessary movement space for adjusting the position of the scraper 212 in the width direction, allowing the scraper 212 to be finely adjusted relative to the locking member 214 through the mounting through hole 212a.

[0071] The adjusting component 215 includes a fixing member 215a and an adjusting member 215b. The fixing member 215a is disposed on the clamping member 213 and / or the connecting member 211. Along the width direction of the scraper 212, the fixing member 215a is located at one end of the scraper 212 and is disposed opposite to the scraper 212. The adjusting member 215b is movably inserted through the fixing member 215a and abuts against the scraper 212. The end of the adjusting member 215b directly abuts against the side end face or edge area of ​​the scraper 212.

[0072] The adjusting member 215b, under the action of an external force, cooperates with the locking member 214 to adjust the position of the mounting through hole 212a of the scraper 212 relative to the locking member 214. When the operator applies an external force (such as rotation or pushing) to the adjusting member 215b, the adjusting member 215b pushes the scraper 212 to translate along its own width direction, thereby changing the position of the mounting through hole 212a relative to the locking member 214, so that the scraper 212 can be adjusted through the mounting through hole 212a relative to the locking member 214.

[0073] During adjustment, the locking component 214 is in a released state, allowing the scraper 212 to slide freely between the clamping component 213 and the connecting component 211. As the adjusting component 215b continues to advance, the scraper 212 moves laterally along its mounting through hole 212a until the desired working position is reached. At this point, the locking component 214 is tightened again, and the locking component 214c presses down again and passes through the mounting through hole 212a, stably locking the scraper 212 at the new coordinates. This mechanism realizes an integrated operation process of "adjustment-positioning-locking".

[0074] The fixing member 215a is typically in the form of a bracket, threaded sleeve, or guide seat, and is securely connected to the side wall of the clamping member 213 or the connecting member 211. The adjusting member 215b can be a screw, set screw, or push rod structure with a handle. In a preferred embodiment, the adjusting member 215b has an external thread on its outer circumference, and the fixing member 215a has a matching internal thread in its inner hole, forming a threaded pair. Rotating the adjusting member 215b allows for continuous and precise fine-tuning of the scraper 212 position, while the self-locking characteristic of the thread prevents positional displacement due to vibration during equipment operation.

[0075] This structure is particularly suitable for scenarios requiring high-precision alignment or collaborative operation of multiple scraping assemblies 210. For example, when multiple scraping assemblies 210 are installed side-by-side along the width of the material conveying channel, the assembly gap can be eliminated by independently adjusting the position of the scraper 212 in each assembly, ensuring continuous and thorough scraping coverage. Furthermore, when the scraper 212 experiences localized wear, its unworn area can be adjusted laterally to participate in the work, indirectly improving material utilization.

[0076] In some embodiments, the adjusting member 215b is threadedly connected to the fixing member 215a. The threaded connection between the adjusting member 215b and the fixing member 215a forms an adjusting mechanism capable of precisely controlling the displacement. The fixing member 215a is fixedly mounted on the clamping member 213 and / or the connecting member 211, while the adjusting member 215b engages with the internal thread of the inner hole of the fixing member 215a via its external thread, enabling it to screw in or out. This threaded pair structure converts rotational motion into linear thrust, thereby smoothly and controllably pushing the scraper 212 to move along its width direction.

[0077] The threaded connection design ensures continuous and high-precision adjustment. Operators can manually rotate the adjusting component 215b to gradually advance its front end and press against the end of the scraper 212, causing the scraper 212 to slide laterally within the clamping space. Because the thread pitch is fixed, the displacement corresponding to each rotation is constant, facilitating millimeter-level or even sub-millimeter-level fine-tuning and meeting the requirements of high-precision slag scraping operations.

[0078] This threaded connection structure also features a self-locking function. When the adjusting element 215b stops rotating, the friction between the threads is sufficient to resist vibrations or reaction forces generated during equipment operation, preventing the adjusting element 215b from retracting on its own and ensuring that the scraper 212 remains stable in the set position for a long time. In high-temperature or dusty environments, fine-pitch threads or anti-loosening coatings can be applied to the thread surface to further enhance locking reliability.

[0079] For ease of operation, the exposed end of the adjusting component 215b may be equipped with a hexagonal head, handle, or knob structure. Operators can complete the adjustment without the need for tools, significantly improving on-site maintenance efficiency. Some embodiments also include a dial or limit mark on the outside of the fixing component 215a, which, in conjunction with the number of rotations of the adjusting component 215b, enables visual control and repeatable positioning of the position.

[0080] Furthermore, the threaded connection simplifies the overall structure of the adjusting component 215, reduces the number of parts, and lowers manufacturing costs. The fixing component 215a can be directly machined with internal threads, and the adjusting component 215b uses a standard screw or a custom set screw. Both are general-purpose mechanical components, making them easy to procure, replace, and standardize in production.

[0081] In some embodiments, the clamping member 213 includes a plurality of clamping plates 213a, which are stacked and arranged in a manner that cooperates with the connector 211 to clamp the scraper 212.

[0082] Multiple clamping plates 213a are stacked along the thickness direction of the scraper 212 and cooperate with the connector 211 to jointly apply clamping force to the scraper 212. This structure not only enhances the clamping rigidity, but also enables active control of the overall center of gravity position of the slag scraping assembly 210 by adjusting the number, thickness or material distribution of each clamping plate 213a.

[0083] If the scraper assembly 210 is lightweight, the scraper blade 212 is prone to warping due to torque imbalance when contacting the offset material, leading to localized disengagement and affecting the scraping effect. To solve this problem, multiple clamping plates 213a can be arranged in a manner that increases the number of clamping plates 213a or uses a higher-density metal material, thereby shifting the center of gravity of the entire scraper assembly 210 towards the material.

[0084] After the center of gravity shifts, the scraper 212, under the combined action of its own weight and clamping force, can adhere to the material surface in a more stable posture. Especially when processing high-speed moving or uneven steel plates, the edges of the scraper 212 are less likely to curl up, and the entire scraping line maintains uniform compression, significantly improving the thoroughness and consistency of scraping off slag or waste.

[0085] The stacked structure of multiple clamping plates 213a also facilitates modular design and field adaptation. Users can flexibly increase or decrease the number of clamping plates 213a or replace plates with different counterweights to quickly adjust the total mass and center of gravity of the component according to different working conditions. For example, when handling heavy cast billets, high-density steel clamping plates 213a can be added to enhance the clamping force; in light-load or high-speed scenarios, the number of layers can be reduced to reduce inertial impact.

[0086] Furthermore, the stacked clamping plates 213a can be pre-assembled using locating pins, keyways, or bolts to ensure that the overall structure does not experience relative misalignment under vibration. All clamping plates 213a act together on the same side of the scraper 212, forming a large-area, multi-point distributed pressing surface, effectively dispersing local stress and preventing the flexible material from undergoing permanent deformation or tearing due to concentrated stress.

[0087] In some embodiments, the scraper 212 includes a connecting portion 212b and a slag-scraping portion 212c connected together. The clamping member 213 is connected to the connecting member 211 and cooperates with the connecting member 211 to clamp the connecting portion 212b. The slag-scraping portion 212c has a slag-scraping plane 212d at one end opposite to the connecting portion 212b.

[0088] The clamping member 213 and the connecting member 211 clamp the connecting part 212b from both sides in the thickness direction, forming a stable and reliable installation interface. Since the clamping force is only applied to the connecting part 212b, the scraping part 212c is not directly constrained by the clamping structure during operation, and can freely exert its elastic deformation capacity to better conform to the uneven areas of the material surface. This local clamping method effectively protects the working area of ​​the scraping part 212c and prevents material fatigue or stress concentration caused by excessive clamping.

[0089] The scraper section 212c has a scraper plane 212d at the end away from the connecting section 212b. This plane is precision machined or molded, with a smooth and flat surface, and has good wear resistance and anti-adhesion properties. The scraper plane 212d is in direct contact with the material conveying surface during equipment operation. It relies on the elastic restoring force of the flexible material to maintain a constant contact pressure, thereby efficiently scraping off surface scum, waste residue, or impurity film.

[0090] In some embodiments, the multi-link floating assembly 220 is a four-link floating assembly, each of which includes a first link 221, a second link 222, a third link 223 and a fourth link 224 that are hinged in sequence to form a closed quadrilateral linkage mechanism.

[0091] The first link 221 is parallel to the third link 223, and the second link 222 is parallel to the fourth link 224. The second link 222 is also connected to the frame 100, and the fourth link 224 is connected to the corresponding scraper assembly 210, forming a stable parallelogram structure. This geometric configuration ensures that the scraper assembly 210 maintains its posture during vertical movement, preventing the working surface of the scraper assembly 210 from tilting or twisting.

[0092] The second link 222 is fixedly connected to the frame 100, serving as the upper support point for the entire four-bar floating assembly. The second link 222 is hinged to a mounting bracket on the frame 100 via a pin or bearing, maintaining a relatively stationary position during equipment operation. The fourth link 224 is connected to the corresponding scraper assembly 210, specifically fixed to the connecting piece 211 of the scraper assembly 210, serving as the lower motion output end and directly transmitting floating displacement to the scraper assembly 210.

[0093] One end of the first link 221 is hinged to the free end of the second link 222, and the other end is hinged to the fourth link 224; one end of the third link 223 is hinged near the connection area between the second link 222 and the frame 100, and the other end is also hinged to the fourth link 224. The four links are connected end to end through four hinge points, forming a deformable but constant-shape parallelogram mechanism. When the scraper assembly 210 is subjected to the force of the unevenness of the material plate surface, the entire four-link floating assembly can swing slightly in the vertical plane, allowing the scraper assembly 210 to float up and down, while maintaining the bottom surface of the scraper assembly 210 parallel to the material plate conveying reference surface.

[0094] This four-bar floating assembly not only provides vertical freedom but also effectively restricts the horizontal displacement of the scraper assembly 210, preventing lateral swaying or wobble during high-speed material movement. Self-lubricating spherical plain bearings or sealed needle roller bearings can be configured at the hinge points to adapt to the harsh working conditions of steel mills—high temperature, dust, and high humidity—extending the mechanism's service life and reducing maintenance frequency.

[0095] In the actual slag scraping process, after the drive mechanism 300 moves all the slag scraping components 210 down to the working position, each four-bar floating component independently responds to local plate shape changes. Even if there is a height difference between adjacent areas, each slag scraping component 210 can still achieve adaptive fitting through the slight deformation of the four-bar floating component, ensuring that the scraper 212 maintains uniform contact pressure with the surface of the material plate, thereby achieving efficient, non-destructive, and dead-angle-free slag removal.

[0096] In some embodiments, the drive mechanism 300 includes a plurality of drive members 310 and a synchronization bracket 320. The synchronization bracket 320 is rotatably connected to the frame 100 and drively connected to a plurality of scraping mechanisms 200. The plurality of drive members 310 are disposed on the frame 100 and connected to the synchronization bracket 320 to drive the synchronization bracket 320 to rotate and drive the plurality of scraping mechanisms 200 to move closer to or away from the material conveying channel 110.

[0097] The synchronous support 320 is arranged laterally above the slag scraping mechanism 200, extending along the width of the material conveying channel 110 and covering the entire installation area of ​​the slag scraping mechanism 200. The synchronous support 320 is rotatably supported on the frame 100 by bearing seats or bushings, and can rotate around its own axis under the action of the drive component 310.

[0098] Multiple drive units 310 are respectively mounted above the synchronous support 320. The drive units 310 can be linear actuators such as cylinders, electric actuators, or hydraulic cylinders. The fixed end of each drive unit 310 is hinged to the frame 100, and the output end is connected to the corresponding part of the synchronous support 320 through a connecting arm, pin, or crank structure. When the drive units 310 move synchronously, they push the synchronous support 320 to generate rotational motion.

[0099] The synchronous support 320 establishes a mechanical linkage with each scraping mechanism 200 through a transmission assembly. The transmission assembly can be in the form of a chain, connecting rod, tie rod, or eccentric wheel. Specifically, the synchronous support 320 has multiple connection points, each of which is hinged to the multi-link floating assembly 220 or connecting piece 211 of the corresponding scraping mechanism 200 via a connecting rod. When the synchronous support 320 rotates, it drives all connecting rods to move synchronously, thereby driving all scraping mechanisms 200 to move closer to or further away from the material conveying channel 110, achieving unified lifting control.

[0100] The design of the drive mechanism 300 ensures that the movements of all scraping mechanisms 200 are highly synchronized. Even in wide steel plate applications, the coordinated action of multiple drive components 310 effectively balances the force on the synchronization bracket 320, avoiding uneven torque or mechanism jamming caused by single-point drive. At the same time, the synchronization bracket 320, as an intermediate transmission hub, evenly distributes the output force of multiple drive components 310 to each scraping mechanism 200, improving the system's operational stability and response consistency.

[0101] When the slag scraping device 10 starts its scraping operation, the control unit of the slag scraping device 10 issues a command, and multiple drive components 310 extend synchronously, pushing the synchronous support 320 to rotate. Through the linkage mechanism, the slag scraping assembly 210 is pressed down to the working position. After the slag scraping is completed, the drive components 310 retract, the synchronous support 320 rotates in the opposite direction, driving all slag scraping mechanisms 200 to quickly rise to a safe height, providing sufficient clearance for the material plate to pass through. This process can be completed within hundreds of milliseconds, meeting the cycle time requirements of high-speed continuous production lines.

[0102] Furthermore, the drive mechanism 300 possesses excellent redundancy and fault tolerance. Even if one drive component 310 experiences a brief response delay or minor malfunction, the remaining drive components 310 can still maintain the basic movement of the synchronous support 320, preventing the slag scraping mechanism 200 from jamming on one side. Combined with the floating capability of the slag scraping mechanism 200 itself, the entire system can maintain high reliability and safety under dynamic operating conditions.

[0103] In some embodiments, the drive mechanism 300 further includes a plurality of chains 330, each slag scraping mechanism 200 having at least one chain 330, and each slag scraping mechanism 200 being connected to the synchronization bracket 320 via the corresponding chain 330.

[0104] The chain 330 serves as a flexible transmission element, reliably connecting the synchronization bracket 320 to the corresponding slag scraping mechanism 200. One end of the chain 330 is fixed to the outer circumferential surface of the synchronization bracket 320 or a dedicated sprocket, while the other end is connected to the connecting member 211 of the slag scraping mechanism 200 or the force-bearing point of the multi-link floating assembly 220, forming a stable force transmission path.

[0105] The synchronous support 320 is equipped with multiple chains 330, and each slag scraping mechanism 200 corresponds to at least one chain 330. When the synchronous support 320 rotates under the action of the drive member 310, the synchronous support 320 drives the chains 330 to pull or push the corresponding slag scraping mechanism 200 to move in the vertical direction. Because the chains 330 have good tensile strength and moderate flexibility, they can effectively absorb local stress fluctuations caused by manufacturing tolerances, thermal deformation, or sudden changes in plate shape, avoiding jamming or component damage caused by rigid transmission.

[0106] Each slag scraping mechanism 200 is connected to the synchronous support 320 via an independent chain 330, achieving a modular transmission design. This ensures that the floating motion of any slag scraping mechanism 200 will not interfere with adjacent units, while also guaranteeing that all slag scraping mechanisms 200 maintain high synchronization during the overall lifting process. Even if individual chains 330 experience slight elongation due to long-term use, it will not significantly affect the overall motion consistency, and the slag scraping equipment 10 can still maintain reliable slag scraping performance.

[0107] The connection point between the chain 330 and the scraper mechanism 200 is typically located at the top hinge seat of the upper swing arm of the multi-link floating assembly 220 or the connector 211. This location is close to the center of gravity of the scraper mechanism 200, which facilitates the smooth transmission of force and reduces swaying or torsion caused by off-center loading. The two ends of the chain 330 are fixed with pins, U-shaped buckles, or tension adjustment devices, which facilitates installation, tension adjustment, and subsequent replacement.

[0108] In actual operation, when the drive component 310 pushes the synchronous support 320 to rotate, the chain 330 is wound or released, causing all scraping mechanisms 200 to move downwards synchronously, so that the scraper 212 gently contacts the surface of the material plate. When the scraping operation ends, the drive component 310 retracts, the synchronous support 320 rotates in the opposite direction, and the chain 330 relaxes under the action of gravity or the auxiliary reset elastic element 340, and the entire scraping mechanism 200 is raised to a safe avoidance position. The whole process is smooth and responsive, and the flexibility of the chain 330 provides natural overload protection for the scraping equipment 10.

[0109] Furthermore, the chain 330 drive structure simplifies the mechanical layout, avoiding interference problems caused by complex linkages or gear systems in confined spaces, making it particularly suitable for high-temperature, dusty metallurgical environments. The chain 330 surface can be galvanized, carburized, or coated with a wear-resistant coating to further enhance corrosion resistance and service life.

[0110] In some embodiments, the drive mechanism 300 further includes a plurality of reset elastic elements 340, one end of each reset elastic element 340 being connected to the frame 100 and the other end of each reset elastic element 340 being connected to the synchronization bracket 320. The reset elastic elements 340 are arranged at intervals along the length of the synchronization bracket 320, and their number matches that of the drive element 310 or the slag scraping mechanism 200 to ensure uniform force distribution and smooth rebound.

[0111] The reset elastic element 340 is made of high fatigue strength tension or compression spring. It can be made of heat-resistant alloy steel and can withstand the high temperature, vibration and alternating load environment of the steel plant for a long time. The preload of the spring is precisely calculated so that it can stably hold the synchronous support 320 in the initial high position when the equipment is in normal standby state, thereby driving all slag scraping mechanisms 200 to a safe avoidance state away from the material conveying channel 110.

[0112] When the drive component 310 is supplied with a power medium (such as compressed air or hydraulic oil) and extends, it overcomes the elastic force of the reset elastic component 340, pushing the synchronous support 320 to rotate, causing the entire slag scraping mechanism 200 to move downwards to the working position. During this process, the reset elastic component 340 is stretched or compressed, storing elastic potential energy. Once the drive component 310 stops supplying power or an air / power supply interruption occurs, the reset elastic component 340 immediately releases the stored energy, actively pulling the synchronous support 320 to rotate in the opposite direction, quickly raising the entire slag scraping mechanism 200 to a safe height.

[0113] This reset mechanism constitutes an intrinsically safe protection function. Even in the event of a sudden power outage, gas outage, or control system failure, the scraper mechanism 200 will not remain in the working position due to its own weight or residual pressure. Instead, it will automatically and reliably detach from the material plate running area by relying on the mechanical force of the reset elastic element 340, effectively avoiding serious accidents such as the scraper hitting the high-temperature steel plate and causing equipment meltdown or production line blockage.

[0114] The synergistic effect of multiple reset elastic elements 340 also enhances the stability of the dynamic response of the slag scraping device 10. Compared with a single-point reset design, the multi-point distributed reset elastic elements 340 layout prevents the synchronous support 320 from skewing or jamming during rotation, ensuring that each slag scraping mechanism 200 lifts synchronously and maintaining the symmetry and balance of the mechanism's movement. At the same time, the flexibility of the springs can buffer the instantaneous impact caused by sudden changes in plate shape during slag scraping, reducing fatigue damage to transmission components.

[0115] During routine maintenance, the preload of the reset elastic element 340 can be finely adjusted via the adjusting screw or tensioning seat to compensate for elasticity decay after long-term use and extend its service life. A dust cover or guide tube can be installed on the outside of the spring to prevent the intrusion of waste residue, cooling water, or oil, ensuring its long-term reliable operation.

[0116] In some embodiments, one end of each reset elastic element 340 is rotatably connected to the frame 100, and the other end of each reset elastic element 340 is rotatably connected to the synchronization bracket 320. One end of the reset elastic element 340 is rotatably connected to the frame 100 via a pin or hinge, and the other end is also rotatably connected to the synchronization bracket 320 via a pin or hinge structure. This double-end rotatable connection design allows the reset elastic element 340 to freely adjust its posture according to the rotation angle of the synchronization bracket 320 during equipment operation, always maintaining a consistent force direction and motion trajectory.

[0117] The reset elastic element 340 is preferably a tension spring, evenly distributed along the axial direction of the synchronous bracket 320, usually in pairs or more, to ensure the balance of rotational torque. When the synchronous bracket 320 rotates around its axis under the action of the drive element 310, the reset elastic element 340 undergoes angular deflection and length change accordingly. However, the hinged structure at both ends effectively eliminates the lateral bending moment or shear stress that may be generated by rigid fixation, avoiding spring twisting, jamming, or premature fatigue fracture.

[0118] When the slag scraping device 10 is in standby mode, the reset elastic element 340 is in a pre-stretched state, and its elastic force is transmitted to the synchronous support 320 through the rotating connection point, so that the synchronous support 320 is stably maintained at the initial high position. At this time, all slag scraping mechanisms 200 are raised to a safe position away from the material conveying channel 110, ensuring that there is no risk of interference when the production line is running under no-load or in case of abnormal shutdown.

[0119] When the drive unit 310 starts and pushes the synchronous bracket 320 to rotate, the reset elastic element 340 is further stretched, storing elastic potential energy. During this process, the end of the reset elastic element 340 swings smoothly with the arc-shaped motion trajectory of the synchronous bracket 320, significantly reducing frictional resistance and local stress concentration, and improving transmission efficiency and component life.

[0120] Once the drive component 310 loses power input, such as due to air supply interruption, power failure, or control system malfunction, the reset elastic component 340 immediately releases the stored energy. Since both ends can rotate freely, the spring efficiently converts the tension into a rotational torque around the axis of the synchronous support 320, driving the synchronous support 320 to quickly and smoothly return to its initial position, simultaneously lifting all the scraping mechanisms 200. The entire reset process does not rely on external energy and possesses good safety characteristics.

[0121] In some embodiments, the drive element 310 is a telescopic element, which may specifically be a linear actuator such as a cylinder, hydraulic cylinder, or electric push rod. The telescopic element has a fixed end and a telescopic end, which is telescopically connected to the fixed end. The telescopic end can perform linear reciprocating motion relative to the fixed end along the axial direction, thereby outputting a controllable thrust or pull force.

[0122] The fixed end of each drive component 310 is rotatably connected to the frame 100, and the telescopic end of each drive component 310 is rotatably connected to the synchronization bracket 320. The fixed end of each telescopic component is rotatably connected to the frame 100 via a pin, hinge, or spherical bearing. This rotatable connection allows the fixed end to adapt to minor angular deviations during equipment operation, avoiding structural stress concentration caused by thermal deformation of the frame 100 or installation errors. The telescopic end of each telescopic component is also rotatably connected to the outer periphery of the synchronization bracket 320 or a dedicated connecting arm via a pin or hinge structure.

[0123] When multiple telescopic components move synchronously, their telescopic ends push or pull the synchronous bracket 320, causing the synchronous bracket 320 to rotate around its support axis. Because the telescopic end and the synchronous bracket 320 are rotatably connected, the telescopic component can automatically adjust its angle according to the arc-shaped movement trajectory of the synchronous bracket 320 during the telescopic process, always maintaining the direction of the force along its axis, effectively avoiding lateral loads from causing bending, wear, or sealing failure of the cylinder or push rod.

[0124] The double-ended rotating connection significantly improves the motion coordination and reliability of the drive mechanism 300. During the downward pressing process of the scraper mechanism 200, the telescopic component smoothly outputs thrust, overcoming the elastic force of the reset elastic component 340, and driving the synchronous support 320 to rotate, so that all scraper mechanisms 200 synchronously approach the material conveying channel 110; during the reset phase, the telescopic component retracts, working together with the reset elastic component 340 to ensure that the synchronous support 320 quickly and smoothly returns to its initial high position.

[0125] The double-hinged structure also gives the drive system excellent fault tolerance. Even if the frame 100 deforms slightly due to thermal expansion, or the synchronous support 320 deflects slightly due to uneven load, the rotating connections at both ends of the telescopic component can still maintain normal operating posture, preventing jamming or overload damage. This design is particularly suitable for high-temperature, high-vibration steel production environments, significantly extending the service life of the drive component 310.

[0126] Furthermore, the stroke, speed, and output force of the telescopic components can be precisely adjusted via pneumatic speed control valves, proportional valves, or servo controllers to match the process requirements of different material plate thicknesses, speeds, and surface conditions. Multiple telescopic components are driven by the same control signal, ensuring highly synchronized movements and preventing scraper tilting or impact caused by the scraper mechanism 200 lowering or raising one side first or last.

[0127] In some embodiments, the fixed end of the drive component 310 can be connected to the frame 100 by welding or screws. The telescopic end of the drive component 310 can be connected to the synchronization bracket 320 by welding or screws.

[0128] In some embodiments, the slag scraping device 10 further includes a detection unit and a control unit. The detection unit is disposed on the frame 100, and both the detection unit and the drive mechanism 300 are electrically connected to the control unit. The detection unit is configured to detect the position of the material plate located in the material conveying channel 110, and the control unit is configured to control the drive mechanism 300 to work according to the detection result of the detection unit.

[0129] The detection unit is installed on the inlet side of the frame 100 or in front of the slag scraping area to sense the position of the material plate in the conveying channel in real time. The control unit is a programmable logic controller (PLC) or an industrial computer, which has signal acquisition, logic judgment and output control functions. The detection unit and the drive mechanism 300 are both connected to the control unit through electrical wiring to form a complete automatic control system.

[0130] The detection unit employs a non-contact sensor, preferably a through-beam photoelectric switch, laser rangefinder, or encoder in conjunction with a position switch. When the head of the material plate enters the detection area, the detection unit generates a trigger signal and transmits it to the control unit; when the tail of the material plate has completely passed through the detection area, the output signal from the detection unit disappears. Based on the presence or absence of the signal and a preset time delay parameter, the control unit accurately determines whether the material plate has moved directly below the scraper mechanism 200.

[0131] The control unit has a preset timing logic for the slag scraping operation. When the detection unit confirms that the head of the material plate has reached the designated position, the control unit starts a delay timer to ensure that the material plate completely covers the slag scraping area before issuing a command to drive the drive mechanism 300. After receiving the command, the drive mechanism 300 pushes the synchronous bracket 320 to rotate, causing all the slag scraping mechanisms 200 to move down synchronously, so that the scraper 212 gently adheres to the upper surface of the material plate, and the slag scraping operation begins.

[0132] As the material sheet continues to move forward, the scraping mechanism 200 adaptively tracks the surface contour using its own floating capability to remove waste. When the detection unit detects that the tail of the material sheet has left the detection area, the control unit immediately issues a reset command, the drive mechanism 300 stops power supply or switches to return mode, and the reset elastic element 340 quickly pulls the scraping mechanism 200 back to a safe high position. The entire process requires no manual intervention, achieving fully automatic start-stop control.

[0133] This automatic control strategy effectively prevents the scraper mechanism 200 from malfunctioning when there is no steel, thus preventing equipment wear or scraper overheating and aging caused by dry scraping. At the same time, precise timing control ensures that the scraper only acts on the effective plate surface, eliminating impact or slag accumulation at the beginning and end of the steel plate, and improving product quality consistency.

[0134] In some embodiments, the detection unit includes multiple photoelectric sensors, with photoelectric sensors installed at both the inlet and outlet of the material conveying channel 110. The photoelectric sensors are installed in the inlet and outlet areas of the material conveying channel 110, respectively, forming dual position monitoring of the material plate throughout its movement. The photoelectric sensor at the inlet detects the moment when the head of the material plate enters the scraping area, while the photoelectric sensor at the outlet confirms the moment when the tail of the material plate completely passes through the scraping area.

[0135] An inlet photoelectric sensor is fixed to the front end of the frame 100, with its transmitter and receiver positioned opposite each other on both sides of the material conveying channel 110, forming a through-beam detection optical path. When the head of the material plate blocks this optical path, the sensor output changes from normally open to closed, and transmits a trigger signal to the control unit in real time. Upon receiving this signal, the control unit initiates a preset delay program to ensure that the material plate fully enters the scraping station before driving the scraping mechanism 200 to fall, thus preventing the scraper from prematurely contacting the high-temperature plate head and causing impact or uneven wear.

[0136] The exit photoelectric sensor is installed at the rear end of the frame 100, also using a through-beam structure, located downstream of the scraping mechanism 200. When the tail of the material sheet passes through and the obstruction of the light path is removed, the sensor output signal resets, and the control unit determines that the scraping operation is complete. Subsequently, the control unit immediately issues a command to retract the drive mechanism 300, and the synchronous bracket 320, under the action of the reset elastic element 340, drives all scraping mechanisms 200 to quickly rise to a safe height, reserving sufficient space for the passage of the next roll or the next piece of material sheet.

[0137] The dual photoelectric sensor layout significantly improves the accuracy of position detection and the reliability of system response. Relying solely on the inlet sensor may lead to misjudgment of the tail position due to changes in steel plate length or fluctuations in conveyor speed; relying solely on the outlet sensor may delay the timing of slag scraping. Through the logical combination of inlet and outlet signals, the control unit can accurately identify the complete presence range of the material plate within the slag scraping area, realizing an intelligent control strategy of "scraping when steel is present and removing when no steel is present."

[0138] Furthermore, the signals from the two photoelectric sensors can also be used to calculate the actual running speed of the material sheet. The control unit dynamically adjusts the delay time based on the time difference between the inlet and outlet signals and the fixed distance between the two sensors, further optimizing the slag scraping timing to adapt to the process requirements at different production line speeds. This function is particularly important in high-speed rolling or variable-specification production, effectively ensuring the consistency of the slag scraping effect.

[0139] Please see Figure 6 The present application also provides a control method for a slag scraping device 10, wherein the control unit is used to execute the following method steps: step 001, step 002 and step 003.

[0140] Step 001: Use the detection unit to detect the real-time position of the material plate in the material conveying channel 110; wherein, the real-time position is the head position or the tail position of the material plate.

[0141] The detection unit includes at least two through-beam photoelectric sensors, respectively arranged on the inlet and outlet sides of the slag scraping area. The inlet-side photoelectric sensor is used to sense the moment when the head of the material plate enters the slag scraping station, and the outlet-side photoelectric sensor is used to identify the moment when the tail of the material plate leaves the slag scraping station.

[0142] During equipment operation, photoelectric sensors continuously emit and receive light beams, forming a detection optical path spanning the material conveying channel 110. When the material plate has not yet entered the detection area, the optical path remains unobstructed, and the sensor outputs a high-level or normally open signal; when the head of the material plate moves forward and blocks the optical path on the inlet side, the receiving signal is interrupted, and the sensor immediately sends a trigger signal to the control unit, indicating that the head of the material plate has reached the preset detection position.

[0143] As the material sheet continues to move forward, its body completely covers the slag-scraping area, at which point both the inlet and outlet sensors are blocked. When the tail of the material sheet passes the outlet detection position and the obstruction of the light path is lifted, the outlet sensor resumes its open state and sends a tail-passing signal to the control unit. By analyzing the combined signal states of the two sensors, the control unit accurately determines whether the material sheet is currently in different stages of the slag-scraping area: "about to enter," "passing through," or "already leaving."

[0144] The detection unit not only identifies the presence of material plates but also precisely distinguishes between the head and tail positions of the material plates. This dual-point detection mechanism effectively avoids misjudgments caused by single-point detection due to variations in steel plate length, conveyor speed fluctuations, or signal jitter. For example, relying solely on the inlet signal may not confirm whether slag scraping has been completed; relying solely on the outlet signal may lead to a delay in slag scraping initiation. Through the logical coordination of the inlet and outlet signals, the system can construct a complete model of the material plate's presence range.

[0145] Furthermore, the control unit can dynamically calculate the actual running speed of the material plate based on the time interval between the inlet and outlet signals, combined with the fixed installation distance between the two sensors. This speed information can be used to adaptively adjust the delay time of subsequent scraping actions, ensuring that the scraping mechanism 200 can be accurately positioned under different production line rhythms.

[0146] Step 002: If the real-time position is the head position of the material plate, the scraping mechanism 200 is controlled by the drive mechanism 300 to descend to the first preset position.

[0147] When the detection unit confirms that the head of the material plate has entered the scraping area, the control unit initiates the scraping process. The control unit first receives a position trigger signal from the photoelectric sensor on the inlet side, indicating that the front end of the material plate has reached the preset detection point. To ensure that the material plate body completely covers the area below the scraping mechanism 200 and to avoid premature contact between the scraper and the high-temperature plate head, causing impact or uneven wear, the control unit then activates the built-in delay timer.

[0148] The delay time is preset based on the material plate's running speed and the physical distance between the scraping mechanism 200 and the detection point, or it can be dynamically adjusted through real-time speed calculation. During the delay period, the material plate continues to be conveyed forward until its effective working section is completely within the scraping station. After the delay ends, the control unit outputs an action command to the drive mechanism 300, and the drive mechanism 300 begins to work.

[0149] Multiple telescopic components in the drive mechanism 300 extend synchronously, pushing the synchronous support 320 to rotate around its support axis. The synchronous support 320 is connected to the connecting parts 211 of each slag scraping mechanism 200 via multiple chains 330. As the synchronous support 320 rotates, the chains 330 are pushed, causing all slag scraping mechanisms 200 to move downwards as a whole. Guided by the multi-link floating assembly 220, the slag scraping mechanisms 200 descend smoothly in the vertical direction, eventually reaching the first preset position.

[0150] The first preset position is the working height for slag scraping, ensuring that the scraper 212 can adhere to the upper surface of the material plate with appropriate contact pressure, effectively removing waste residue while avoiding scratches on the plate surface or excessive wear of the scraper due to excessive clamping force. At this position, the bottom surface of the scraper plate remains parallel to the reference plane for conveying the material plate. Thanks to the parallelogram structure of the four-bar linkage, even with slight deviations during descent, the scraper posture remains stable.

[0151] The extension and retraction stroke of the drive mechanism 300 is precisely controlled by limit switches, magnetic sensors, or servo controllers to ensure that each descent accurately stops at the first preset position. Meanwhile, the drive component 310 employs a rotating connection structure at both ends, allowing it to adjust its angle as it pushes the synchronous support 320 to rotate, avoiding lateral forces and ensuring smooth transmission and component lifespan.

[0152] The control unit can also record drive current, pressure, or displacement feedback to determine if there is jamming or abnormal load, thus providing fault warning. Once an abnormality is detected, the scraper mechanism 200 can immediately stop its descent and trigger an alarm to prevent damage to the scraper equipment 10.

[0153] Step 003: If the real-time position is the tail position of the material plate, the scraping mechanism 200 is controlled by the drive mechanism 300 to rise to the second preset position, wherein the second preset position is higher than the first preset position.

[0154] When the detection unit detects that the tail of the material plate has left the slag scraping area, the control unit initiates the reset process of the slag scraping mechanism 200. This judgment is based on the signal change of the photoelectric sensor on the outlet side: when the tail of the material plate passes through and removes the obstruction to the outlet light path, the sensor output state changes from obstruction to pass, and the control unit confirms that the slag scraping operation has been completed.

[0155] Upon receiving the tail section pass signal, the control unit immediately sends a reset command to the drive mechanism 300. The drive mechanism 300 then stops supplying power, cutting off the air, hydraulic, or electrical input, causing the telescopic component to lose its active thrust. At this time, multiple reset elastic elements 340 installed between the frame 100 and the synchronous support 320 begin to function. The reset elastic elements 340 release the elastic potential energy stored during the descent of the scraper mechanism 200, generating an upward pull torque that drives the synchronous support 320 to rotate in the opposite direction.

[0156] The reverse rotation of the synchronous support 320 is transmitted to each scraping mechanism 200 via multiple chains 330. The chains 330 pull the connecting piece 211 upward, causing all scraping mechanisms 200 to rise synchronously. The scraping mechanism 200 rises vertically along the guide path of the multi-link floating assembly 220 and finally comes to a stable stop at the second preset position. The second preset position is the standby safety height of the equipment, and its distance from the material conveying channel 110 is greater than that of the first preset position, ensuring that the scraping mechanism 200 is completely detached from the running trajectory of the steel plate and avoiding interference with the subsequent empty roller conveyor, the next roll of material plate, or other components of the production line.

[0157] The slag scraping mechanism 200 remains stationary at the second preset position until the next material plate enters the detection area, triggering a new round of slag scraping cycle.

[0158] The entire lifting process features a dual safety mechanism: firstly, the drive mechanism 300 can actively cooperate with retraction (e.g., cylinder exhaust for accelerated retraction); secondly, the retraction elastic element 340, as a passive safety power source, can still independently complete the lifting action in the event of sudden failures such as power outages or gas outages, achieving intrinsic safety design. This mechanism effectively prevents the scraper plate from falling and damaging the steel plate or obstructing the production line due to its own weight, significantly improving system reliability.

[0159] The control unit can also monitor the lifting process. For example, it can determine whether the reset is in place by detecting the rotation angle of the synchronous support 320, the tension of the chain 330, or the displacement of the spring. If the lifting is not completed within the specified time, the system will trigger an alarm and record the fault information for timely handling by maintenance personnel.

[0160] Furthermore, the timing of the scraping mechanism's 200-degree upward movement is closely coordinated with the production line rhythm. The control unit can dynamically adjust the reset and start-up timing based on the material plate length and operating speed, avoiding incomplete scraping at the tail end due to premature lifting or excessive wear from dry scraping due to delayed lifting. This intelligent strategy balances cleaning effectiveness and equipment lifespan.

[0161] In the accompanying drawings of this embodiment, the same or similar reference numerals correspond to the same or similar components. In the description of this application, it should be understood that if terms such as "upper," "lower," "left," "right," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, they are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the terms used to describe positional relationships in the drawings are only for illustrative purposes and should not be construed as limiting this application. For those skilled in the art, the specific meaning of the above terms can be understood according to the specific circumstances.

[0162] The above are merely preferred embodiments of this application and are not intended to limit this application. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A slag scraping device, characterized in that, include: The frame is equipped with a material conveying channel; Multiple scraping mechanisms are provided, which are buoyantly connected to the frame and arranged sequentially along the width of the material conveying channel; and A drive mechanism is provided on the frame and connected to multiple scraping mechanisms to drive the multiple scraping mechanisms to move closer to or away from the material conveying channel.

2. The slag scraping device according to claim 1, characterized in that, Each of the aforementioned slag scraping mechanisms includes a slag scraping assembly and a multi-link floating assembly, the slag scraping assembly being buoyantly connected to the frame via the multi-link floating assembly.

3. The slag scraping device according to claim 2, characterized in that, Each of the slag scraping assemblies includes a connector and a scraper, the scraper being mounted on the connector, the connector being connected to the frame via the multi-link floating assembly.

4. The slag scraping device according to claim 3, characterized in that, The scraper is a flexible scraper.

5. The slag scraping device according to claim 2, characterized in that, The multi-link floating assembly is a four-link floating assembly. Each four-link floating assembly includes a first link, a second link, a third link, and a fourth link that are hinged in sequence. The first link and the third link are arranged in parallel, the second link and the fourth link are arranged in parallel, the second link is also connected to the frame, and the fourth link is connected to the corresponding slag scraper assembly.

6. The slag scraping device according to claim 1, characterized in that, The driving mechanism includes multiple driving components and a synchronization bracket. The synchronization bracket is rotatably connected to the frame and drively connected to multiple scraping mechanisms. The multiple driving components are disposed on the frame and connected to the synchronization bracket to drive the synchronization bracket to rotate and to drive the multiple scraping mechanisms to move closer to or away from the material conveying channel.

7. The slag scraping device according to claim 5, characterized in that, The drive mechanism also includes a plurality of reset elastic elements, one end of each reset elastic element being connected to the frame, and the other end of each reset elastic element being connected to the synchronization bracket.

8. The slag scraping device according to claim 7, characterized in that, One end of each of the reset elastic elements is rotatably connected to the frame, and the other end of each of the reset elastic elements is rotatably connected to the synchronization bracket.

9. The slag scraping device according to claim 5, characterized in that, The driving component is a telescopic component, which has a fixed end and a telescopic end. The telescopic end is telescopically connected to the fixed end. The fixed end of each driving component is connected to the frame, and the telescopic end of each driving component is connected to the synchronization bracket.

10. A control method for a slag scraping device, characterized in that, The control method for the slag scraping device is applied to the slag scraping device according to any one of claims 1 to 9. The slag scraping device further includes a detection unit and a control unit, the detection unit and the control unit being disposed on the frame. The detection unit and the drive mechanism are both electrically connected to the control unit. The control unit is used to perform the following method steps: The detection unit is used to detect the real-time position of the material sheet in the material conveying channel; wherein, the real-time position is the head position or the tail position of the material sheet; If the real-time position is the head position of the material plate, the scraping mechanism is controlled by the drive mechanism to descend to the first preset position; If the real-time position is the tail position of the material plate, the scraping mechanism is controlled by the driving mechanism to rise to the second preset position, wherein the second preset position is higher than the first preset position.

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