2007 results about "Rolling mill" patented technology

The invention discloses an anchor rod body continuous forming process and equipment. The anchor rod body continuous forming process comprises the steps that a base material is heated and subjected to perforation treatment, and a hollow pipe blank is obtained; primary annealing treatment is conducted on the hollow pipe blank, and primary straightening is conducted on the annealed hollow pipe blank; the hollow pipe blank subjected to primary straightening is subjected to acid pickling so as to remove oxide skin on the surface of the hollow pipe blank; a finishing mill is adopted for conducting multi-pass finish rolling forming on the hollow pipe blank obtained after acid pickling, and the rolled anchor rod is obtained; the rolled anchor rod is subjected to secondary annealing treatment, the annealed rolled anchor rod is subjected to secondary straightening, and the temperature of secondary annealing is lower than that of primary annealing; the rolled anchor rod subjected to secondary straightening is subjected to fixed-length cutting; and performing cold rib rolling and thread rolling processing on the rolled anchor rod subjected to fixed-length cutting. According to the embodiment, on the premise that energy consumption is controlled, cold-state precision forming is achieved, and good comprehensive mechanical performance is obtained.

The invention provides a cold heading steel wire rod rolling temperature closed-loop control method and system based on PID, and relates to the technical field of cold heading steel wire rod rolling process control, and the cold heading steel wire rod rolling temperature closed-loop control method comprises the following steps: determining temperature control parameters of a rolling area of a rolling mill in different rolling stages of a cold heading steel wire rod according to process requirements of the cold heading steel wire rod; constructing dynamic thermodynamic models of different rolling stages; the real-time state data and the real-time temperature data are preprocessed; the extracted temperature control parameters are compared with the preprocessed real-time temperature data; based on the dynamic thermodynamic model and the real-time temperature deviation, the control quantity is calculated through a PID algorithm, and a control instruction is output to an execution mechanism of the rolling mill; and an execution mechanism of the rolling mill receives the instruction and carries out temperature adjustment action. The method can effectively guarantee that the temperature in each rolling stage is stable, the quality consistency of cold heading steel wire rod products is improved, and the dynamic change requirement in the rolling process is met.

The invention provides rolling equipment, a current collector, a preparation method of the current collector, a pole piece, a battery and a device. A rolling device comprises a roller mechanism, a flow control mechanism and a power mechanism. The roller mechanism comprises at least two opposite rollers arranged at intervals and a flow control mechanism. The flow control mechanism is used for independently controlling the flow of the cooling medium in each cooling channel; the power mechanism is used for driving at least one roller to rotate. According to the rolling equipment, the roller diameter of the roller can be simply, effectively and flexibly adjusted by controlling the flow, so that the thickness of a rolled membrane material is adjusted, for example, a current collector with a large thickness in a tab area is prepared, the current collector is used for preparing an electrode pole piece, the problem of belt breakage in mass production of the electrode pole piece can be solved, and the production efficiency of the electrode pole piece is improved. And the yield of electrode plate production is improved.

The invention belongs to the field of advanced metal plastic processing, and particularly relates to a difficult-to-deform metal ultra-thin strip rolling device and method.The device comprises an uncoiler, a high-strength rolling mill and a coiler which are sequentially arranged, and the inlet side and the outlet side of the high-strength rolling mill are each provided with a pair of equal-diameter rollers; the equal-diameter roller is composed of a copper conductive roller and a ceramic insulating roller, the copper conductive roller on the inlet side and the copper conductive roller on the outlet side are electrically connected to the positive electrode and the negative electrode of the pulse power source respectively, and a strip blank on the uncoiling machine sequentially penetrates through the equal-diameter roller on the inlet side, the high-strength rolling mill and the equal-diameter roller on the outlet side and then is wound on the coiling machine. And a working roll, which is in contact with the strip blank, on the high-strength rolling mill is an insulating ceramic working roll. The pulse current in the method can induce dynamic recrystallization, an ultra-fine grain or nanocrystalline structure is obtained, and the strength and plasticity matching of the product is superior to those of a traditional process. Meanwhile, long-time high-temperature oxidation can be avoided by adopting pulse current to heat the strip blank, and the surface is bright.

The utility model provides a vertical loop rack and a vertical loop, and belongs to the field of steel rolling production equipment, a window is arranged on the operation side of a vertical loop rack body, and a hinge door is arranged at the window, so that waste steel in the rack is convenient to clean, the accident handling time is shortened, and the production efficiency is improved; when the high-speed wire rod rolling mill works normally, the first opening and closing door and the second opening and closing door are kept in a connected state and are fixed to the vertical loop rack body, and normal production is not affected; when a steel clamping accident occurs, only the first fixing mechanism and the second fixing mechanism need to be dismantled and the connection state between the first opening and closing door and the second opening and closing door needs to be released, so that the first opening and closing door and the second opening and closing door can rotate around the joint with the vertical loop rack body through the first connecting mechanism and the second connecting mechanism respectively; therefore, opening and closing between the first opening and closing door and the second opening and closing door are achieved, accidents occurring in the vertical loop rack body can be handled conveniently, and the handling efficiency is high.

This invention provides a thickness control method for a single-stand reversible cold rolling mill. The single-stand reversible cold rolling mill unit includes an inlet coiler, an outlet coiler, a mill body, a mill hydraulic system, an inlet thickness gauge, an outlet thickness gauge, an inlet speed gauge, an outlet speed gauge, an inlet tension gauge, and an outlet tension gauge. The single-stand reversible cold rolling mill unit also includes an S-roll, with S-rolls at both the inlet and outlet of the unit. The S-roll can rotate 180°, with the upper roll of the S-roll able to rotate to the lower roll position and the lower roll of the S-roll able to rotate to the upper roll position. The 180° rotation causes the strip steel to wind in an S-shape on the S-roll. The thickness difference of the strip steel is eliminated by adjusting the speed of the inlet S-roll to control the metal flow rate entering the roll gap.

The invention relates to a production method of thin cold-rolled strip steel for food cans, which comprises the following steps of: smelting molten steel according to preset smelting components, and continuously casting after smelting; the casting blank subjected to continuous casting enters a hot rolling procedure, the final rolling temperature of the casting blank corresponds to the carbon content, and finally hot-rolled strip steel with the thickness of 2.0-2.3 mm is obtained; hot-rolled strip steel enters a rolling procedure after being subjected to acid rolling uncoiling, a five-rack rolling mode is adopted for acid rolling, and the total reduction rate is controlled to be 91%; coiling and then entering a continuous annealing process; in the annealing furnace, the annealing temperature and the strip steel speed are in a proportional relation, and finally finished strip steel is obtained. The thin-gauge strip steel can be produced at a high cold rolling speed, meanwhile, vibration of the rolling mill is effectively relieved, the production cost is reduced, and the product quality is not affected.

The invention provides a strip steel offset detection method and device, equipment and a storage medium, and the method comprises the steps: obtaining an initial production image of to-be-detected strip steel at a target production node, obtaining the position information of a roller way center line of a finishing mill frame, extracting a strip steel contour from the initial production image, and obtaining the strip steel contour information; determining strip steel center line position information based on the strip steel contour information, calculating an actual deviation value of the to-be-detected strip steel according to the strip steel center line position information and the roller way center line position information, and determining a strip steel deviation state according to a comparison result of the actual deviation value and a preset deviation threshold value; according to the method, the outline of the strip steel is automatically extracted through the image processing technology, the offset is accurately calculated, real-time monitoring and objective judgment of the offset state are achieved, the offset can be quantified automatically, objectively and accurately, manpower and material resources consumed in the production process are reduced, and safety and management efficiency in the strip steel production process are improved.

The application provides an aluminum alloy, which comprises the following components in percentage by mass: Zn 4.0-5.0%, Mg 1.2-1.8%, Cu 0.1-0.3%, Zr 0.08-0.12%, Ti 0.02-0.06%, Fe less than or equal to 0.25%, and the balance of Al. The alloy elements containing Zn 4.0-5.0%, Mg 1.2-1.8%, Cu 0.1-0.3%, Zr 0.08-0.12%, Ti 0.02-0.06% and Fe less than or equal to 0.25% are added into a smelting furnace together with pure aluminum, smelted at 700-750 DEG C to form a melt, refined by blowing in inert gas or adding a refining agent, and the gas and inclusions are removed. The application utilizes the shearing force generated by the different rotating speeds of the upper and lower rollers of a differential rolling mill to break the coarse structure, refine the grains, and increase the dislocation density. The aluminum alloy is rolled at 480-500 DEG C to reduce the deformation resistance, promote dynamic recrystallization, maintain the processing performance, and further enhance the performance by 60-70% of the total deformation. After rolling, the aluminum alloy is subjected to multi-directional forging, the strain direction is changed multiple times, the grains are broken, the structure is homogenized, and anisotropy is eliminated, so that the comprehensive performance and application range of the aluminum alloy profile are improved. The problem that the structure cannot be refined and the dislocation density cannot be increased during the rolling process is solved.

The invention relates to the technical field of rolling mill automatic control, in particular to a special rolling mill controller without a PLC framework and an integrated control system, and aims to solve the problems that in rolling of a rolling mill, the sampling rate difference of pressure and thickness sensors and material plastic deformation accumulation cause the time sequence dislocation of a rolling force peak value and a thickness valley value, the collaborative utilization of data by a thickness control algorithm is influenced, and the cost is reduced. In order to solve the problems that rolling force, thickness data and roller pulse signals are collected through a special controller, and a rolling length observation benchmark is converted; the dynamic phase compensation unit calculates a plastic deformation cumulant, after triggering compensation, a basic phase difference is established based on a sampling rate difference, a compensation coefficient is dynamically increased, a compensation data segment is generated through linear interpolation, and a time sequence is forcibly aligned; and the integrated control unit inputs the alignment data into a thickness control algorithm, the rolling force serves as feedforward, the thickness data serves as feedback, a precise roller gap adjusting instruction is generated, and the material thickness rolling precision is improved.

The invention relates to a cast-rolling casting nozzle with an electric-magnetic coupling oscillation effect. Relates to a cast-rolling casting nozzle with an electromagnetic oscillation effect, which is matched with a horizontal double-roller cast-rolling machine in the field of aluminum alloy die casting. The method is used for solving the inevitable internal macrosegregation defect of the high-alloy-content aluminum alloy cast-rolled product. The device comprises an L-shaped electrode pair 1; a side seal 2; an excitation device 3; a guide plate 4; a cooling water pipe (inlet / outlet) 5; a copper enameled wire (excitation) 6; a countersunk self-tapping screw 7; a casting nozzle upper plate 8; a rhombic shunting block 9; a nozzle lower plate 10; and a casting nozzle bottom plate 11. In the casting and rolling process, an oscillating electric field and a steady magnetic field are introduced, electromagnetic coupling force is generated at the outlet end of a casting nozzle, the electromagnetic force effectively stirs a semi-solid aluminum alloy melt, and therefore the purposes that alloy is evenly distributed, and segregation defects are reduced or even eliminated are achieved. The method is used in 4-series, 6-series and 7-series aluminum alloys, and the effect is obvious.

The utility model relates to the technical field of steel rolling guide and guard assemblies, in particular to a steel rolling guide and guard assembly with a positioning mechanism, which comprises a base, a mounting block is arranged at the bottom end of the base, a guide and guard assembly body is arranged at the bottom of the mounting block, a guide pipe is arranged on one side of the guide and guard assembly body, and a mounting plate is arranged on the other side of the guide and guard assembly body. When the guide and guard assembly body needs to be installed, the connecting blocks on the two sides of the bottom end of the guide and guard assembly body are directly inserted into the connecting grooves of the fixing blocks, then the rotary knobs are rotated through a tool, the rotary knobs can drive the two-way screw rods in the installing grooves to rotate, meanwhile, the two-way screw rods can drive the movable blocks, the movable plates are pushed through the movable blocks and the rotary connecting rods, and the guide and guard assembly body is installed. And the movable plate drives the clamping block to enter the clamping groove in one side of the connecting block, so that the connecting block is fixed, the mounting stability of the guide and guard assembly body is ensured, the guide and guard assembly body is mounted without a plurality of bolts, the mounting efficiency is higher, the labor intensity is reduced, and the practicability is higher.

A stretch reducer and / or calibrating rolling mill for rod-shaped bodies, in particular tubular bodies, in particular hollow bodies, said rolling mill comprising a plurality of rolling stands each comprising a plurality of rolling rollers mutually arranged so as to define a passage for said rod-shaped bodies, wherein said rolling stands are arranged in sequence along a rolling direction so that the respective passages are substantially aligned to define a rolling path substantially parallel to said rolling direction, wherein each of at least two of said rolling stands comprises three rolling rollers.

The invention belongs to the field of industrial energy optimization, and discloses a steel plate production-energy collaborative optimization method. The method comprises the following steps: firstly, determining various constraint conditions and optimization targets in a cold rolled steel coil production process; secondly, a rule-driven rolling mill distribution model is established to serve as a first-layer optimization model, contract requirements are matched with the production capacity of different rolling mills, and therefore contracts are distributed to all the rolling mills; and finally, solving the lower-layer time scheduling model, carrying out rolling calculation on the demand electric charge, and carrying out production scheduling on the contract by taking the minimization of the demand electric charge as a target and combining actual production requirements. According to the method, the actual working condition of the cold rolling mill can be well adapted while the maximum power demand of the factory is optimized.

The invention belongs to the field of profile steel production, and particularly relates to a rolling method of hot-rolled Q450NQR1 weather-resistant H profile steel, which adopts a reversible cogging mill and a universal finishing mill group for rolling: after the cogging mill rolls for 3-5 passes for cogging, a universal continuous rolling mill is adopted for finish rolling 9 continuous rolling, and the arrangement sequence of finish rolling hole patterns is U1-U2-U3-E4-U5-U6-U7-E8-U9; wherein the U3 and the U6 are curved web hole patterns, and the vertical roll is in drum-shaped design. The method has the advantages that one BD cogging mill is used for large-rolling-reduction rolling to crush crystal grains, and then the nine-rack universal continuous rolling mill is used for finish rolling, so that the metal flowing and steel biting conditions are improved. The grain structure is refined through large rolling reduction and low-temperature rolling, the problems that the Q450NQR1 weathering resistant steel is poor in metal fluidity, prone to cracking and the like due to alloy elements are effectively solved, and meanwhile the mechanical property, the size precision and the surface quality of products are guaranteed.

The ring rolling mill for producing the flange comprises a base and a vertical rod extending upwards from the upper wall of the base, and further comprises a supporting plate, a driving wheel, a supporting wheel and a pressing wheel, the supporting plate is fixedly connected to the upper portion of the vertical rod, the driving wheel is rotationally connected to the middle of the end face of the supporting plate, and a sliding groove is formed in the end face of the supporting plate. Sliding blocks are arranged in the sliding grooves in a sliding mode, the sliding blocks are movably adjusted in the length direction of the sliding grooves through driving assemblies, the supporting wheels are slidably adjusted in the length direction of the sliding grooves through the sliding blocks, the supporting wheels and the driving wheels are arranged on the same side, and a connecting plate is fixedly connected to the upper wall of the supporting plate; the pressing wheel is movably connected to the bottom of the connecting plate through an adjusting assembly and located above the driving wheel. The utility model belongs to the technical field of flange production equipment, particularly relates to a ring rolling mill for flange machining, and aims to enhance the stability of rotating rolling of annular workpieces.

The utility model relates to the technical field of dry grinding and dry separation of iron ore and similar processes, and particularly discloses a dry grinding and dry separation system which comprises an incoming material conveying system, a roller mill, a dynamic powder concentrator, a dry classification cabin and a fine powder collecting and conveying system. A discharging hole of the supplied material conveying system is communicated with a feeding hole of the roller mill; a discharging hole of the roller mill is communicated with a feeding hole of the dynamic powder concentrator; a coarse particle material outlet of the dynamic powder concentrator is communicated with a material inlet of the dry type grading cabin; an oversize coarse particle discharging opening of the dry type grading cabin is communicated with a feeding opening of the roller mill; and a fine powder discharge hole of the dynamic powder concentrator is communicated with the fine powder collecting and conveying system. Finished product materials with various particle sizes can be provided, and the requirements of customers for different finished product particle sizes are met; fine powder screened by the dynamic powder concentrator is collected by a dust collector and then is directly conveyed to a tailing discarding procedure, so that the handling capacity of the dry classification cabin is reduced; the use condition of the dry-type grading cabin is optimized, and the system flow is simplified.

The invention provides an aluminum melt refiner dynamic regulation and control method which comprises the following steps: preparing a 1060 aluminum alloy raw material, and preheating to 220 DEG C; the preparation method comprises the following steps: adding raw materials into a smelting furnace, heating to 740 DEG C for melting, and adding an Al-5Ti-1B intermediate alloy; adding a refining agent, refining for 35 minutes, and standing for 20 minutes; the melt enters a degassing box, in the degassing box, a graphite rotor is used for rotating at the rotating speed of 350 rpm, and high-purity argon is introduced for degassing for 18 minutes; the melt is filtered through a ceramic foam filter and enters a front box; the temperature in the front box is adjusted to 690 DEG C, and a titanium wire adding device continuously adds titanium wires at the speed of 0.8 m / min; the melt enters a casting and rolling machine, casting and rolling are conducted at the speed of 1.0 m / min, and the liquid level height is controlled to be 60 mm; graphite-based paint is sprayed on the surface of the casting roller at the speed of 0.8 m / min; and performing macrostructure inspection on the cast-rolled plate, and evaluating the grain refinement effect. The method has the effects of stable grain refinement effect and high finished product quality.

The invention relates to the technical field of flaking mills, in particular to a flaking mill roller spacing intelligent adjusting method and system. According to the method, the image of the material fed by the flaking mill is collected in real time, the pre-trained deep learning model is used for recognition to obtain the material attribute parameters, then the parameters are input into the preset material attribute-roller spacing relation model to calculate the optimal roller spacing value, and the adjusting mechanism is driven to automatically adjust the double-roller spacing of the flaking mill, so that the efficiency of the flaking mill is improved. Meanwhile, the abrasion state of the two rollers is monitored in real time in the working process, a compensation adjustment mechanism is automatically triggered when the pressure change exceeds the preset range, intelligent adjustment of the roller spacing of the flaking mill is achieved, the optimal roller spacing can be automatically set according to the material characteristics, the influence caused by roller abrasion can be compensated in time, and the machining accuracy and stability are improved.

The invention discloses a rolling and expanding bidirectional laminating method for a layered bimetal composite hollow shaft, which is characterized in that an outer shaft and an inner shaft which are made of metal materials are in interference fit to obtain an initial composite hollow shaft; then the initial composite hollow shaft is fed into a three-roller skew rolling mill, when a roller performs skew rolling on the initial composite hollow shaft, the reaming rod extends into an inner hole of the initial composite hollow shaft at the same time, and the outer diameter of the reaming rod is larger than the diameter of the inner hole of the initial composite hollow shaft; the initial composite hollow shaft is subjected to bidirectional compression in the radial direction by the roller and the reaming rod during rolling; the initial composite hollow shaft is pushed forwards in the axial direction, meanwhile, the axial relative position of the roller and the reaming rod is kept unchanged till lamination rolling of the whole composite hollow shaft is completed, and the layered bimetal composite hollow shaft is obtained; the device has the advantages that during rolling, the roller and the reaming rod simultaneously compress the composite hollow shaft inside and outside in the radial direction, and the bonding strength of the composite hollow shaft is remarkably improved.

The invention relates to the technical field of rolling mills, in particular to a rolling mill roller parallelism fast adjusting device which comprises a bottom plate, a vertical plate and a main transmission mechanism, the output end of the main transmission mechanism is in meshed connection with a working roller and a supporting roller which are vertically distributed, and the supporting roller penetrates through the vertical plate and extends to the two sides of the vertical plate. The positions, corresponding to the vertical plates, of the working rollers and the supporting rollers are sleeved with bearings, the section width of the bearings is larger than the thickness of the vertical plates, guide grooves are formed in the vertical plates, and hydraulic mechanisms are fixedly installed at the upper ends of the guide grooves. The sharp-angle tip of the trapezoidal feeler gauge can be easily inserted into a narrow gap between the two cylindrical bearings, accurate positioning can be achieved, stable supporting can be applied to the supporting roller, and the supporting roller can be accurately positioned under the condition of not depending on the hand feeling of an operator by being matched with the fine-adjustable working roller hydraulic lifting mechanism. Standardized and quantitative measurement and comparison are carried out on the gap between the two ends of the roller, so that a direct and reliable basis is provided for quickly and accurately adjusting the parallelism.

The invention discloses a device for removing attachments on the surface of a roller of a cold-rolling mill, and belongs to the technical field of cold-rolling mills. Comprising a bottom plate, the right side of the upper surface of the bottom plate is in bolted connection with a rack, and the left side of the upper surface of the bottom plate is provided with a cold-rolling mill body; the device further comprises fixing frames, the two fixing frames are fixedly installed on the inner side of the rack through bolts, and the vertical ends of the fixing frames are connected with movable plates. According to the cold-rolling mill roller surface attachment removing device, the cleaning range of the cleaning brush is flexibly adjusted through the two-way threaded rod, the lead screw is matched to control feeding so that the cleaning strength can be adjusted, rollers of different sizes and multi-scene requirements can be met, the cleaning effect and roller protection are considered, meanwhile, through cooperation of the protruding block and the wedge-shaped block, the cleaning brush can axially rub in a reciprocating mode, and the cleaning effect is improved. Therefore, the cleaning mode is changed, the friction depth is strengthened, residual impurities at the textures of the roller can be efficiently stripped, the rubbing range of the cleaning brush is synchronously expanded along with the feeding distance, and the cleaning coverage and thoroughness are further improved.

The present application relates to the technical field of steel plate production, and particularly relates to a production method of an extremely thin Nb-containing 355MPa-grade pickling plate, which comprises the following steps: 1) slab blanking: the difference between the slab width and the target width is controlled to be within 50mm, and the slab single weight is controlled according to the single steel rolling distance within 1150m; 2) heating: the air-fuel ratio of the heating furnace is set to be 1.8-2.0, the furnace atmosphere is controlled to be weak oxidizing, the furnace outlet temperature is 1220-1240 DEG C, the second heating section + soaking time is greater than or equal to 65min, the total in-furnace time is greater than or equal to 170min, and the interval between the steel tapping is greater than or equal to 160s; 3) rough rolling: the slab outlet does not use the SP width press, the rough rolling adopts two rolling mills, and each rolling mill is rolled for three passes; the descaling water is fed in each pass; 4) finish rolling: the finish rolling inlet temperature is controlled to be 1050-1080 DEG C, and the finish rolling temperature is within the range of 860-900 DEG C; 5) when the flatness defect occurs during the coiling, the cooling setting time is increased in the coiling drum. The present application guarantees the stable rolling and improves the surface quality of the steel plate.

This utility model discloses a casting-rolling composite system, belonging to the field of casting and rolling technology. It includes a casting mill, a casting nozzle, a flow channel, and a first heating device. The upper casting roll of the casting mill has a larger diameter than the lower casting roll. The upper casting roll is a solid roll with the first heating device on one side, while the lower casting roll has internal cooling water pipes. The casting nozzle includes upper and lower lip plates, with the lower lip plate extending longer than the upper lip plate, forming a stepped staggered layout. An open feeding channel is formed between the upper lip plate and the upper casting roll. This utility model achieves asynchronous rolling through a system of different diameter rolls, increasing the actual deformation of the strip with higher deformation resistance and reducing the uneven deformation of the two metals during the casting and rolling process. Heating the upper casting roll raises the strip temperature, reducing the melt cooling rate. Cooling the lower casting roll shortens the contact arc length between the melt and the lower casting roll, extending the contact time between the melt and the strip, improving the wetting effect, and significantly enhancing the bonding quality and stability of the composite interface.

The application provides a distance adjusting device for a rolling mill, which comprises a support frame, a support structure, an adjusting structure, a locking structure and two support seats. The support frame comprises a first frame, the support structure is installed inside the first frame, and the two support seats are slidingly installed on the support structure. The adjusting structure comprises a driving mechanism and a plurality of block groups, and the block groups are respectively clamped between the upper support seat and the top of the first frame, between the two support seats, and between the lower support seat and the bottom of the first frame. The driving mechanism is used to drive the block groups to move, the distance between the two support seats is changed by adjusting the embedding depth, and the clamping support of the top and bottom of the support seat is maintained. The locking structure is used to lock the adjusting structure. The position of the support seat is changed by embedding and pushing, so as to adjust the distance between the rolling mills, realize the effect of automatic distance adjustment, improve the efficiency and adjustment accuracy, and maintain the support of the main stress direction of the support seat by the embedding and pushing part.

Support system for storing rolling mill rolls, comprising: - a support frame (Cha) comprising a first support (Cha1) and a second support (Cha2), the first and second supports being fastened to the ground in parallel, - a pair of independent non-movable roll stands (Bc), each pair comprising a first roll stand and a second roll stand, the first and second roll stands being spaced apart by a certain distance, rigidly connected to the first support (Cha1) and the second support (Cha2) respectively, in order to support the rolls transversely on the support frame in different support positions, - a handling system configured to release and lift a roll located in one of the support positions of the pair of non-movable roll stands by lifting one or more movable roll stands using lifting means, to displace the movable frame (SMCH) and to place the roll in another support position of a non-movable roll stand displaced along the length of the support frame (Cha) by lowering of the lifting means.

The present disclosure provides a rolling mill operation state data processing method, device and system, which can be applied to the field of rolling mill equipment detection. The method comprises: receiving operation state data related to a target rolling mill in operation, the operation state data comprising a vibration data sequence and a temperature data sequence in an operation period; based on a multi-level expansion rate mechanism, extracting features from the vibration data sequence and the temperature data sequence to obtain vibration features and temperature features, the vibration features and the temperature features representing the running state change trend of the target rolling mill in multiple time scales; and detecting the equipment state of the target rolling mill by fusing the vibration features and the temperature features to obtain a target detection result representing the equipment state of the target rolling mill.

The utility model relates to the technical field of rough rolling mill, and disclose a rough rolling mill, include: base, heating mechanism, rough rolling mechanism and finishing mechanism, heating mechanism, rough rolling mechanism, finishing mechanism are assembled in the upper end of base respectively, the top of base is assembled with cooling roll, the outside of cooling roll is evenly provided with water outlet groove, the front of cooling roll is assembled with servo motor, and the other end of cooling roll is inserted with the short pipe, the outside of short pipe and servo motor is all bushed with bearing, and the ground of bearing is connected with base through pedestal. The rough rolling mill, the outside of big specification round bar is evenly sprayed water source, thereby realizes the even cooling to big specification round bar, reduces the outside temperature difference of big specification round bar, thereby improves the processing effect to big specification round bar, and simultaneously through the water storage module of adding, the water source produced by the device cooling big specification round bar is recycled, and then realizes the recycling of cooling water, reduces the waste of water resources.

Control system for cold rolling mills to improve sheet metal thickness uniformity. Sensors monitor the state of the cold rolling mill by measuring (i) roll eccentricity, (ii) roll slips during mill operation, (iii) mill disturbances from roll speed or roll force manifestations, and (iv) unknown disturbances referred to as process noise. The controller analyzes data from sensors to compensate. Data collected during the mill operation by the sensors are delayed in reaching the controller. This communication delay is accounted for by using a filter. Since an objective of the controller software is dynamic identification of eccentricity of the back up rolls, which is non-linear by nature, an Extended Kalman Filter may be used.

The application provides a method for improving the execution precision of a reversible rough rolling mill tail short stroke, and relates to the technical field of industrial automation. The method sets three heat detectors at the entrance of the vertical roll mill, sets the short stroke parameters of the vertical roll mill at each pass tail when the slab is discharged, when the odd pass is detected, the first heat detector detects the loss, and the tail position is tracked according to the set vertical roll mill current pass back slip and actual speed; when the second heat detector detects the loss, the actual back slip value of the vertical roll is calculated according to the distance between the first two heat detectors and the tracking length, and the tracking length is corrected, and the tail is continuously tracked; when the third heat detector detects the loss, the back slip value and the tail tracking position are continuously corrected; when the distance between the tail and the vertical roll mill reaches the start distance of the short stroke, the vertical roll gap is adjusted according to the set value; when the tail leaves the vertical roll, the vertical roll mill keeps the current position until the tail of the steel plate leaves the flat roll mill. The method realizes the real back slip of the vertical roll mill through multiple heat detectors, and improves the tail tracking precision and the width control precision.