301 results about "Shearing (manufacturing)" patented technology

The invention provides an uncoiling-bending-connecting integrated manufacturing method for a large high-strength metal ring cylinder part, which comprises the following steps: S10, selecting a high-strength metal sheet with the thickness of 2-8 mm; s20, the coiled material of the metal sheet is placed on a vertical uncoiler to be uncoiled; s30, the uncoiled metal sheet has a first bending direction, the metal sheet straightly enters a vertical roll bending machine to be continuously rolled, the rolled metal sheet has a second bending direction, and the first bending direction is opposite to the second bending direction; s40, a vertical plate shearing machine is adopted to shear off the metal thin plate meeting the preset length, and when the metal thin plate is kept upright, the metal thin plate is welded to form an annular cylinder part; according to the rolling and bending integrated technology, the decoiling step in the rolling and bending technology is removed, decoiling, rolling and bending and welding are integrated into the integrated technology, and the problems that in a traditional technology, multiple times of transferring and positioning are conducted, and the equipment occupies the area are greatly reduced.

The invention relates to a high-hardenability gear steel bar for a new energy automobile and a manufacturing method of the high-hardenability gear steel bar. The high-hardenability gear steel bar comprises the following chemical components in percentage by mass: 0.17-0.25% of C, less than or equal to 0.37% of Si, 0.50-0.90% of Mn, 0.85-1.25% of Cr, less than or equal to 0.025% of P, less than or equal to 0.030% of S, less than or equal to 0.30% of Cu, 0.02-0.06% of Ti, 0.02-0.05% of Al, less than or equal to 0.30% of Ni, 0.15-0.45% of Mo, 0.0005-0.0020% of B, 0.020-0.080% of Nb, less than or equal to 0.0030% of Ca, 0.0090-0.0150% of N, less than or equal to The production and manufacturing process comprises the steps of converter treatment, external refining, vacuum degassing, continuous casting, continuous rolling, shearing or saw cutting, stack cooling and finishing flaw detection. According to the invention, fine Nb (C, N) and (Nb, Ti) (C, N) particles are precipitated by microalloying Nb and Ti, the growth of crystal grains is effectively inhibited, and meanwhile, the hardenability of the material is improved by adding a proper amount of B element. According to the invention, Nb, Ti and B are adopted for composite microalloying at the same time, so that the fine-grain and high-hardenability gear steel material is obtained.

The invention relates to the field of hardware production and manufacturing, in particular to automobile hardware stamping part plate shearing equipment which comprises an operation table, a feeding plate is arranged on the operation table in an up-down sliding mode through a hydraulic power assembly, an upper blade is arranged on the feeding plate through an adjusting mechanism used for changing the inclination direction, and a lower blade is fixedly installed on the operation table. A linkage assembly in the adjusting mechanism is matched with the rotating part, the inclination direction of the upper blade is automatically changed after each time of shearing, a cutting edge uniformly participates in shearing operation in the whole length, excessive abrasion of a single position is avoided, the service life of the upper blade is remarkably prolonged, meanwhile, the material plate is prevented from being scratched, and the material plate is prevented from being scratched. The adjusting mechanism drives the tool rest plate to slide through the hydraulic cylinder, so that the upper blade gradually makes contact with a plate in a sliding cutting mode in the initial shearing process, local impact force is dispersed, damage of instantaneous loads to the blade is reduced, and the smoothness and stability of the shearing process are improved.

The invention relates to the technical field of corrugated pipe manufacturing equipment, in particular to exhaust corrugated pipe extrusion manufacturing equipment which comprises an extrusion device, a mold device, an unwinding device, a cooling device, a shearing device and a material receiving device, and the material receiving device comprises a supporting box, a compression assembly, a material pouring assembly and a material receiving box. The supporting box is located at the output end of the mold device and provided with a supporting guide rail for supporting movement of the corrugated pipe, the compression assembly is slidably connected with the supporting box and used for compressing and folding the corrugated pipe, and the material pouring assembly is located at the end, away from the mold device, of the supporting box and used for pouring the corrugated pipe into the mold device. And the conveying device is used for conveying the corrugated pipe to a receiving box. The corrugated pipe production device has the effect of improving the corrugated pipe production efficiency.

The invention relates to the technical field of transformer manufacturing, in particular to an automatic transformer iron core sheet material shearing device which comprises a base, a rotating groove, a plurality of clamping grooves and a plurality of clamping grooves, a shearing seat is fixedly mounted on one side of the upper end of the base, and a placing frame is detachably mounted on the other side of the upper end of the base; a wire cutting machine is arranged on one side of the rotating groove, and a rotating frame is rotationally installed in the rotating groove. And the two guide rail shells are fixedly installed on the upper portion and the lower portion between the two side face frames correspondingly, moving blocks are installed in the two guide rail shells in a sliding mode, and the moving blocks are driven by displacement assemblies arranged on the guide rail shells. Through the arrangement of the structure, the silicon steel sheet can be cut at different angles, the stress concentration and grain damage of the section are reduced, products with more complex shapes can be cut, meanwhile, the stability in the cutting process can be improved, and the section quality of the silicon steel sheet can be guaranteed.

The invention relates to the technical field of inductors, and discloses an inductor production line which comprises a machine table, a framework feeding device, a winding device, an adhesive tape inspection mechanism, an unqualified semi-finished product discharging mechanism, a terminal crimping device, an electrical property detection mechanism, a fly wire shearing mechanism, a defective product discharging mechanism and a non-defective product discharging device. The inductor with guaranteed quality can be obtained after the framework is subjected to winding, adhesive tape inspection, unqualified semi-finished product discharging, terminal crimping, electrical detection, fly wire shearing, defective product discharging and good product discharging, the inductor production line can sequentially complete all steps of inductor manufacturing, the efficiency is high, the production cost is low, and the production efficiency is high. And devices and mechanisms required by each step of inductor production are all concentrated on the machine table, so that the inductor production line is relatively compact in structure and relatively small in occupied space.

A printhead (100) for three-dimensional printing of concrete includes a main body (120) and a regulator device (140). The main body (120) includes a multi-stage, convergent-divergent cylinder (125a), shearing blades (126), a pressure chamber (128), and a secondary inlet (130). The pressure chamber (128) surrounds the cylinder for temporary storage and regulated processing of a secondary fluid. The secondary inlet (130) transfers the secondary fluid from the pressure chamber (128) to the multi-stage, convergent-divergent cylinder (125a) to form a mixture, which is discharged from the printhead (100). The printhead can, for example, be used for additive manufacturing of cement-based materials.

A process for forming extruded products using a device having a scroll face configured to apply a rotational shearing force and an axial extrusion force to the same preselected location on material wherein a combination of the rotational shearing force and the axial extrusion force upon the same location cause a portion of the material to plasticize, flow and recombine in desired configurations. This process provides for a significant number of advantages and industrial applications, including but not limited to extruding tubes used for vehicle components with 50 to 100 percent greater ductility and energy absorption over conventional extrusion technologies, while dramatically reducing manufacturing costs.

A process for forming extruded products using a device having a scroll face configured to apply a rotational shearing force and an axial extrusion force to the same preselected location on material wherein a combination of the rotational shearing force and the axial extrusion force upon the same location cause a portion of the material to plasticize, flow and recombine in desired configurations. This process provides for a significant number of advantages and industrial applications, including but not limited to extruding tubes used for vehicle components with 50 to 100 percent greater ductility and energy absorption over conventional extrusion technologies, while dramatically reducing manufacturing costs.

The invention discloses a thick-wall cylinder hot shearing extrusion short-process forming method based on a hollow casting blank, and belongs to the technical field of manufacturing of hard-to-deform alloy thick-wall cylindrical parts. The method comprises the following steps that 1, the thick-wall hollow casting blank is prepared; step 2, hot shearing extrusion; step 3, heat treatment; and step 4, finish machining. The hollow casting blank is prepared by adopting electroslag remelting or electroslag liquid pouring refining; according to the hot shearing extrusion, the hollow casting blank is directly subjected to hot extrusion forming through an annular cylindrical part shearing extrusion die, the technological processes of repeated heating, multi-step hot forging blank manufacturing and the like are omitted, one or two heating number forming is directly conducted, the production cost of materials, energy, manpower and the like can be reduced by about 15%-30%, and the forming and manufacturing efficiency of the annular cylindrical part is improved; the forming-forming effect of the thick-wall cylinder is improved, and meanwhile short-process forming manufacturing of the thick-wall cylinder is achieved.

A printhead for three-dimensional printing of concrete includes a main body and a regulator device. The main body includes a multi-stage, convergent-divergent cylinder, shearing blades, a pressure chamber, and a secondary inlet. The pressure chamber surrounds the cylinder for temporary storage and regulated processing of a secondary fluid. The secondary inlet transfers the secondary fluid from the pressure chamber to the multi-stage, convergent-divergent cylinder to form a mixture, which is discharged from the printhead. The printhead can, for example, be used for additive manufacturing of cement-based materials.

The invention relates to the technical field of dissimilar metal composite material manufacturing, in particular to a preparation method of a dissimilar metal connecting material for ship engineering, which comprises the following steps: S1, sequentially placing an isolation support plate, a first support block and a base plate on an explosion foundation; s2, sealing along the peripheries of the substrate and the isolation support plate by using a sealing material; s3, a second supporting block of the metal net frame is placed on the surface of the base plate; s4, the compound plate is placed on a second supporting block; s5, explosive is laid on the upper surface of the compound plate; s6, water is injected from a water injection opening; s7, inserting a detonator into the explosive; and S8, detonating the detonator and detonating the explosive to form the explosive welding material. Through the cylindrical mesh-shaped supporting piece and overwater explosive welding, the production length of a product is increased, the shearing performance of a far-end interface is greatly improved, the influence of interface performance of different areas caused by non-uniform basic virtuality and reality is reduced, and the problems of poor long-distance combination and consistency of performance of all the areas of the product in explosive welding are solved.

The utility model discloses a pneumatic cutting and feeding mechanism for a photovoltaic module EVA (Ethylene Vinyl Acetate) gasket, which comprises a material strip roll frame, a punching assembly, a cutting assembly and a feeding and transferring assembly which are sequentially positioned and arranged along a material conveying direction, and a material clamping assembly which is controlled to move back and forth is arranged beside an EVA material strip stroke, an EVA material belt is guided and input into the punching assembly and is fed by the clamping assembly between the punching assembly and the cutting assembly in a stepping mode, the punching assembly is provided with a drill bit driven by a punching air cylinder to ascend and descend, and the cutting assembly retreats to give way when the EVA material belt is in an advancing state and feeds, cuts and segments the EVA material belt when the EVA material belt is in a positioning state. And the feeding and transferring assembly is provided with a feeding unit for continuously conveying to the next process and a pneumatic suction cup for sucking the sheared EVA gaskets and transferring the sheared EVA gaskets into the feeding channel. The blanking and feeding mechanism is applied to a photovoltaic module production line, EVA material belt shearing, adsorption material taking and continuous feeding are completed by optimizing the shearing assembly, the difficulty of picking up EVA gaskets in the later-stage manufacturing process can be reduced, and the production efficiency is improved.

The present application relates to the technical field of shaving razor, and discloses a shaving razor blade and a manufacturing method thereof.The shaving razor blade comprises a blade body, a plurality of cutting teeth arranged on the blade body, and a cutting groove formed between two adjacent cutting teeth.The wall surface of the cutting groove is extended from the lower end surface of the cutting tooth to the upper end surface of the cutting tooth and forms a continuous curved surface.The wall surface of the cutting groove is extended from the lower end surface of the cutting tooth to the upper end surface of the cutting tooth and forms a continuous curved surface, compared with the wall surface of the cutting groove connected by multiple planes or connected by a curved surface and a plane.The stress concentration of the wall surface of this structure is not easy to occur, thereby not affecting the rigidity of the overall structure, and the phenomenon of deformation, knife jump and temperature increase during the shearing process can be effectively reduced.Meanwhile, during the heat treatment, the continuous curved surface is heated more uniformly, the temperature change is more uniform during cooling, and deformation is not easy to occur during the heat treatment process, effectively solving the problem of poor reliability of the side wall of the existing cutting tooth.

The utility model discloses a chip pin processing device, which relates to the technical field of chip production and comprises a bottom plate, the upper end of the bottom plate is fixedly connected with stand columns, the upper ends of the two stand columns are both fixedly connected with the lower end of a top plate, the upper end of the top plate is fixedly provided with a hydraulic cylinder, and the output end of the hydraulic cylinder penetrates through the top plate and is fixedly connected with a connecting plate. A lifting plate is fixedly connected to the lower end of the connecting plate, a plurality of shearing assemblies are installed at the upper end of the lifting plate, a plurality of sliding grooves are formed in the bottom plate, electric sliding blocks are slidably installed in the sliding grooves, a moving plate is fixedly connected to the upper ends of the electric sliding blocks, and a fixing frame and a bending assembly are arranged at the upper end of the moving plate. According to the device, the shearing assembly is driven by the hydraulic cylinder to shear the pins, the bending assembly is used for bending the pins, the pins on the four side faces of a chip can be sheared and bent, the machining time is shortened, the production efficiency is improved, meanwhile, the product error rate caused by human factors is avoided, and therefore the manufacturing success rate is increased.

The invention relates to the technical field of waterproof roll manufacturing, and discloses impermeable waterproof roll manufacturing equipment which comprises a main body frame, and a conveying mechanism is installed on one side of the interior of the main body frame and used for conveying various materials at the same time; the bonding and rolling mechanism is arranged in the middle of the main body frame and is used for carrying out bonding and rolling treatment on various materials; the positioning mechanism is arranged on one side of the bonding and rolling mechanism and is used for shearing and positioning the rolled material coiled material; the rolling and conveying mechanism is arranged on one side of the bubble eliminating mechanism and is used for carrying out rolling and conveying treatment on the bonded materials; and the winding mechanism is arranged on the other side of the main body frame and is used for carrying out winding treatment on the treated coiled material. By arranging the bubble eliminating mechanism, the problem that bubbles are generated in the bonding process is solved, and meanwhile by arranging the shearing mechanism to be matched with the positioning mechanism, positioning shearing of the coiled material is achieved.

The utility model discloses a battery manufacturing homogenizer capable of reducing discharge residue, and relates to the technical field of battery manufacturing, the battery manufacturing homogenizer comprises an outer shell, a stirring and shearing assembly and a bubble removing assembly, the stirring and shearing assembly is installed on the upper portion of the interior of the outer shell, and the stirring and shearing assembly comprises a shearing cylinder, an installation plate, a main blade and a shearing blade; a mounting plate is connected to the inner wall of the shearing cylinder through bolts, a main blade is fixed to the inner side of the mounting plate, shearing blades are fixed to the two sides of the main blade, and the shearing blades are distributed in a crotch shape. According to the battery manufacturing homogenizer capable of reducing the discharged material residues, stirring blades can be conveniently driven to rotate through a stirring shaft, so that the stirring blades can drive slurry to impact the inner wall of a shearing cylinder in a reciprocating manner, cutting edges of a plurality of groups of main blades and shearing blades on the inner side of the shearing cylinder are staggered, different shearing forces can be generated, and a similar shearing mechanism is formed; therefore, the slurry can be scattered and sheared in the high-speed rotating impact process of the slurry, so that the slurry is mixed more uniformly, and the homogenizing efficiency is improved.

The invention provides a manufacturing method of a cross-fault tunnel model for simulating a high confining pressure and high ground stress environment, and the method comprises the following steps: S1, manufacturing layered shear boxes which comprise a plurality of first shear boxes and a plurality of second shear boxes which are connected through universal connecting pieces; the first shearing box comprises a first cavity, and the second shearing box comprises a second cavity; s2, the first cavity and the second cavity are filled with foam expansive concrete, and a fault rock model for simulating the tunnel excavation position is obtained; s3, a surrounding rock hole is formed in the middle of the fault rock model to simulate the tunnel excavation process, and a surrounding rock hole model is obtained; and S4, a tunnel model is placed in the surrounding rock hole, the space between the tunnel model and the surrounding rock hole is filled with a polyurethane expansion material, and the cross-fault tunnel model simulating the high confining pressure and high ground stress environment is obtained. According to the method, the stress state of the tunnel in complex geological environments such as high confining pressure and high ground stress is more truly represented.

The invention relates to the field of metal processing and manufacturing, in particular to a metal sheet shearing machine and a using method thereof, and the metal sheet shearing machine comprises a blade, a supporting table, a cleaning mechanism, a rust removing mechanism and an anti-loosening mechanism. The using method of the metal sheet shearing machine comprises the following steps of S1, shearing, S2, rust removal, S3, cleaning and S4, looseness prevention. According to the device, by arranging the cleaning mechanism and the shear blades, cuttings generated when the device cuts a metal sheet are reduced, meanwhile, the cleaning mechanism can collect the cut metal cuttings, and therefore the device avoids the risk of scratching personnel and the sanitation problem caused by the fact that the metal cuttings are thrown out when the metal sheet is cut; during use, metal chippings can fall into a V-shaped groove between the blocking plate and the shearing base, then the blocking plate is opened in a sliding mode, and the cut metal plate chippings are sucked into the cleaning box through the vacuum degree.

The invention discloses a method for preventing mistaken shearing of stacked steel plates on line, which relates to the technical field of steel plate manufacturing and comprises the following steps: respectively mounting a first distance measuring sensor and a second distance measuring sensor above and below a steel plate conveying roller way; measuring the thickness of the steel plate conveyed on the steel plate conveying roller way through a first distance measuring sensor and a second distance measuring sensor; and comparing the steel plate thickness measured by the first distance measuring sensor and the second distance measuring sensor with a preset steel plate thickness threshold value, and if the steel plate thickness is out of the threshold value range, preliminarily judging that the steel plates are stacked. The upper sensor and the lower sensor are adopted for cooperative detection, steel plate thickness information can be more accurately obtained, interference of environmental factors is reduced, meanwhile, the steel plate stacking condition is preliminarily judged by measuring the steel plate thickness, then the steel plate stacking condition is comprehensively analyzed through the steel plate passing time, the detection precision and reliability are improved, and the detection cost is reduced. And the misjudgment rate is reduced.

The invention belongs to the technical field of tea filter paper manufacturing, and particularly relates to a green environment-friendly antibacterial tea filter paper manufacturing process which comprises the following steps: S4, calendaring and processing: calendaring wet paper through a calendaring machine to enable the surface to be smoother, processing according to needs, cutting into filter paper sheets with specific sizes, and cutting the filter paper sheets into filter paper sheets with specific sizes; and S4, the calender comprises a supporting beam used for supporting, a control cabinet is fixedly installed on the upper surface of the supporting beam, a calendering mechanism is arranged on the upper surface of the supporting beam, a shearing mechanism is arranged above the calendering mechanism, and a sorting mechanism is arranged below the calendering mechanism. According to the manufacturing process of the green and environment-friendly antibacterial tea filter paper, a speed reducing motor drives a linkage oblique bevel gear at the lower end to rotate, and then relative rotation of an inner sleeve and an outer sleeve is achieved under two driving oblique bevel gears and a linkage oblique bevel gear at the upper end, so that relative rotation of a connected shearing plate can be achieved, and the filter paper can be clamped and sheared off.

The utility model relates to a special shearing device for manufacturing high-transmittance and high-scattering glass in the technical field of glass production equipment, which comprises a shearing platform, a movable door-shaped frame is arranged on the shearing platform, a shearing knife is arranged on the door-shaped frame, a vertical telescopic rod is connected to the shearing knife, the vertical telescopic rod is movably arranged on the door-shaped frame, and the vertical telescopic rod is connected with the shearing knife. The moving direction of the vertical telescopic rod is perpendicular to the moving direction of the door-shaped frame. A groove is formed in the shearing platform, universal balls are fully distributed in the groove, limiting plates are arranged on the two sides of the groove and connected with horizontal telescopic rods, a through hole is formed in the portion, between every two adjacent universal balls, of the groove, a collecting box is arranged below the shearing platform, and the through holes communicate with the collecting box. The glass shearing device is reasonable in structure, capable of limiting glass, high in stability in the shearing process, capable of improving the shearing effect and efficiency, convenient to load and unload the glass, capable of reducing damage to the surface of the glass, capable of collecting and uniformly treating powder generated in the shearing process and capable of reducing dust pollution.

The utility model relates to the field of film bag manufacturing, in particular to a rapid bag making machine with pressing claws, which comprises a rack, a hot shearing device and a bag pressing device are arranged on the rack along the material conveying direction, the rapid bag making machine further comprises a bag shifting mechanism, and the bag shifting mechanism is arranged between the hot shearing device and the bag pressing device. The pushing device is used for pushing a finished product sheared by the hot shearing device apart from subsequent materials; and the pressing claw device is arranged in the bag shifting mechanism and is used for pressing the tail end of the film bag on the bag pressing device. The bag shifting mechanism is driven by the driving motor A, rotation pause time is set in the moving process of the shifting rod mechanism, feeding is carried out according to the pause time, after hot shearing is completed, a thin film bag is separated from the hot shearing device through the shifting rod mechanism, and then the tail of the bag clamped by the bag pressing device is pressed through the pressing claw mechanism. Therefore, needling fixation is not needed.

The utility model discloses a heat insulation strip rubberizing and shearing mechanism which comprises a shearing assembly which comprises an operation table, a first guide rail, a sliding block, a fixing frame, a telescopic rod, a pressing block, a second guide rail, a moving block, a cutter and a guide block. The first guide rail is fixed to one side of the top end of the operation table, the sliding block is slidably connected to the surface of the first guide rail, the fixing frame is fixed to the top end of the telescopic rod, the upper end of the telescopic rod penetrates through and is fixed to the surface of the upper end of the fixing frame, and the pressing block is fixed to the output end below the telescopic rod. The cutter is fixed to the outer side end of the movable block, and the guide block is fixed to the edge of one side above the notch of the operation table and located between the first guide rail and the second guide rail. By arranging the shearing assembly, the shearing mechanism is simplified, the manufacturing cost is reduced, and the application range is expanded.

This invention discloses a steel rolling shearing tool, the composition of which, by weight percentage, includes: C: 0.35~0.55%, W: 5.0~9.0%, Mo: 2.5~5.5%, Cr: 3.0~5.0%, V: 0.8~1.8%, Co: 2.5~6.0%, Nb: 0.05~0.30%, Si≤0.6%, Mn≤0.6%, with the balance being Fe and unavoidable impurities; wherein, Co / Nb=10~30; wherein, the tool contains 12~22% by volume of MC-type carbides and M6C-type carbides, the volume ratio of MC-type carbides to M6C-type carbides is controlled between 1:(1.2~2.5), and the average particle size of the carbides is ≤2.5μm. The manufacturing process and shearing machine using the tool were also disclosed, which can effectively solve the problems of steel sticking or wire pulling when existing tools are used for high-temperature shearing, and also solve the problem of not being able to balance red hardness and toughness.

The invention relates to a nut structure in a planetary roller screw. A nut structure in a planetary roller screw device comprises a plurality of nuts which are coaxially arranged, the radiuses of the nuts are the same, a plurality of protrusions are arranged on the end face of one of the adjacent nuts, and a plurality of grooves matched with the protrusions are formed in the end face of the other nut. Adjacent nuts are welded after being positioned and connected through the matching structures of the grooves and the protrusions, the matching density of the protrusions and the grooves of the inner ring is high, and the matching density of the protrusions and the grooves of the outer ring is low. According to the nut structure in the planetary roller screw device, segmented manufacturing of a long nut can be met, the overall strength of the nut after segmented welding can be high, the anti-shearing capacity is close to that of base metal, stress concentration can be effectively eliminated, and stress distribution can be optimized; the technical problems that in a roller lead screw structure in the prior art, a long nut is inconvenient to manufacture, and the long nut subjected to segmented welding is unstable in performance, reduced in strength and concentrated in stress are solved.

The present invention discloses a metal pipe bending and shearing device for hardware product manufacturing, which belongs to the technical field of hardware product manufacturing. The device comprises a shell and a three-jaw chuck, and also comprises a rotating rod, a rotating plate, a shell sleeve, two rotating wheels, a shearing machine, a vertical plate, a pressure spring, a pushing rod and a driving mechanism. The vertical plate is arranged below the two rotating wheels, and the center line of the vertical plate can always remain perpendicular to the line connecting the centers of the circles between the two rotating wheels. The shearing machine is slidably connected above the vertical plate, and the sliding direction is the same as the direction of the center line of the vertical plate. The invention has the advantages of being able to accurately shear hardware metal pipes with different curvatures, and can ensure that the shearing surface can be flat and smooth when shearing hardware metal pipes with different curvatures. The invention solves the problems that the existing metal pipe bending and shearing device cannot shear hardware metal pipes with different curvatures and cannot accurately determine the shearing direction, resulting in the shearing surface of the metal pipe being tilted and not flat and smooth enough.

This invention relates to the field of intelligent manufacturing and concrete product production equipment control technology, specifically an intelligent control system for the entire production process of concrete poles. The system includes: a reference parameter identification unit for performing a stepped acceleration test and calculating the empty mold impedance parameter characterizing the inherent mechanical resistance of the mold; a load torque observation unit for acquiring the electromagnetic drive torque in real time and extracting the net load torque acting only on the concrete material; a rheological and distribution state analysis unit for calculating the dimensionless eccentricity factor characterizing the uniformity of material distribution; and an adaptive closed-loop control unit for generating corresponding control commands: an emergency braking command is output when the eccentricity exceeds the safety limit, a constant-speed shearing command is output when the rheological state does not meet the standard, and an adaptive acceleration command is output when the rheological state meets the standard and the eccentricity is within the safe range. This invention solves the problem of the inability to directly observe the material state within a closed mold, achieving transparent monitoring of the physical properties of concrete.

The invention discloses a metal raw material shearing device, and relates to the technical field of automobile manufacturing raw material shearing, the metal raw material shearing device comprises a workbench, a portal frame is fixedly mounted between two side wall surfaces of the workbench, a lifting assembly is arranged in the portal frame, a pressing plate is fixedly mounted on the lifting assembly, and the pressing plate is located above the workbench; functional modules of feeding, centering, pressing, shearing and the like are highly integrated, automatic feeding of plates is achieved through the conveying belt, automatic centering in the feeding process is achieved through the centering adjusting assembly, automatic pressing of a shearing station is achieved through the lifting assembly and the pressing plate, and the shearing efficiency is improved. And finally, the hydraulic cylinder drives the second cutter to complete shearing, the whole process is tight in linkage and high in automation degree, manual operation links and labor intensity are greatly reduced, meanwhile, the production takt and the overall operation efficiency are improved, and the automatic shearing machine is very suitable for being integrated into a modern automatic production line of automobile parts.