524 results about "Steel bar" patented technology

The invention discloses a large-model-based steel bar engineering quality detection method, system and equipment and a medium, and relates to the technical field of data processing. The method comprises the following steps: acquiring vibration response data and three-dimensional point cloud data of a to-be-detected reinforcement project; inputting the vibration response data into a pre-trained vibration characteristic analysis model to obtain a stress distribution map and a stress transmission path, and performing segmentation processing on the three-dimensional point cloud data along the stress transmission direction to obtain segmented point cloud data; based on the segmented point cloud data, extracting morphological characteristics of each section of reinforcing steel bar in the to-be-detected reinforcing steel bar project, and establishing a stress-geometry coupled digital twinborn model according to the stress distribution map and the morphological characteristics; performing dynamic mapping on the digital twinborn model and a pre-calibrated BIM design model, and determining steel bar deformation parameters of the stress abnormal region; and based on the steel bar deformation parameters, generating a quality detection report of the to-be-detected steel bar project. By implementing the technical scheme provided by the invention, the accuracy of reinforcing steel bar engineering quality detection can be improved.

The invention relates to the technical field of bridge engineering structure health monitoring, in particular to a service life prediction method and system for a bridge connection part, and the method comprises the steps: collecting the strain of a grouting sleeve, a reinforcement-grouting interface ultrasonic reflection signal and environment temperature and humidity data through a distributed sensor array; a three-dimensional dynamic void rate model is generated through fusion of a spatial topological mapping algorithm, a correlation function of load circulation and void expansion is established, the dynamic void rate is input into a bond strength coupling degradation model, after strength attenuation is quantized in combination with steel bar corrosion data and bond failure early warning is triggered, stress redistribution is calculated through multi-physics coupling simulation, and the dynamic void rate is obtained. Early warning is taken as a starting node, the actual load spectrum and temperature and humidity data are combined, Monte Carlo sampling is adopted to simulate rigidity degradation and output the residual life probability, the system comprises a multi-source collaborative sensing unit, a micro-void evolution analysis unit and a life prediction decision unit, and the safety control precision of bridge connection parts is improved.

The invention relates to the technical field of material metallurgy, and discloses high-wear-resistance hot-rolled round steel for titanium-containing steel balls and a preparation method thereof.The round steel comprises 0.60%-0.67% of C, 1.40%-1.60% of Si, 0.70%-0.90% of Mn, smaller than or equal to 0.020% of P, smaller than or equal to 0.015% of S, 0.70%-0.90% of Cr, 0.10%-0.15% of Ti, smaller than or equal to 0.30% of Ni, smaller than or equal to 0.40% of Cu, smaller than or equal to 0.05% of Al, smaller than or equal to 0.0020% of O, smaller than or equal to 0.0002% of H and smaller than or equal to 0.0035% of N; and the balance of Fe and inevitable impurities. Through the high-titanium-low-nitrogen microalloying design, the technical contradiction that the toughness is remarkably reduced when the strength and the hardness of traditional high-carbon steel ball steel are improved is solved, and excellent synergistic improvement of the strength, the hardness and the toughness is achieved.

The invention, which relates to the technical field of information, discloses a BIM and MARL-fused complex structure steel bar intelligent arrangement system comprising a data acquisition module, a three-dimensional modeling module, a feature processing module, a scheme generation module, a scheme optimization module and a scheme output module. The data acquisition module extracts geometric and stress data of the BIM, and a final data set is obtained after preprocessing; the three-dimensional modeling module constructs a three-dimensional structure model through geometric analysis, optimization and standardization algorithms; the feature processing module calculates stress distribution and performs dimension reduction on a feature set; the scheme generation module generates an initial arrangement scheme set through a genetic algorithm; the scheme optimization module obtains a global coordination scheme set through multi-algorithm collaborative optimization; and the scheme output module generates a three-dimensional visual model and BIM compatible arrangement data. According to the method, the problem of arrangement of the reinforcing steel bars with complex structures is solved, and the accuracy and the engineering adaptability of reinforcing steel bar arrangement are improved.

Disclosed in the present invention is a production and preparation method for a steel bar for a steam turbine impeller. The steel bar comprises the following chemical components in percentages by mass: C: 0.31-0.36%, Si: 0.22-0.35%, Mn: 0.45-0.60%, P: ≤0.013%, S: ≤0.008%, Cr: 1.05-1.20%, Ni: ≤0.20%, Cu: ≤0.10%, Mo: 0.21-0.28%, and V: 0.11-0.18%. The method comprises: converter smelting → LF refining → RH refining → continuous casting → a heating furnace heating process → a rolling process → a heat preservation process. The present invention satisfies the quality requirements of a steel bar for a steam turbine impeller, and indexes, such as mechanical properties, a high hardness and a high steel purity, can also satisfy high-standard requirements.

The invention relates to a reinforcing steel bar calculation method and system based on a reinforcing steel bar engineering large model, and belongs to the technical field of constructional engineering digitization. The method comprises the steps that engineering drawings or parameter data uploaded by a user are received and subjected to standardization processing, and standardized engineering data are generated; based on the standardized engineering data, extracting reinforcing steel bar feature information, and generating a reinforcing steel bar feature data set; according to the steel bar feature data set, dynamically matching related rules from a preset calculation rule base, converting the related rules into mathematical constraint formulas, and generating a constraint condition set; inputting the steel bar feature data set and the constraint condition set into a pre-trained steel bar engineering large model for processing, and calculating a steel bar engineering amount to obtain an optimized steel bar amount result; and mapping the steel bar quantity optimization result to a three-dimensional building model to generate a visual steel bar distribution diagram. According to the method, steel bar calculation can be conveniently, rapidly and accurately carried out.

The invention relates to the technical field of material microstructure characterization, and discloses a method for improving ultrafine grain steel bar metallographic detection precision, which comprises the following steps: exciting a nanometer sonoluminescence probe covering the surface of a sample by using a focused sound field, and carrying out global scanning to obtain a reference grain boundary network image; automatically identifying regional interest points including a crystal boundary three-fork point and a signal interruption region from the image; aiming at different types of interest points, adaptively reconstructing a sound field mode or a scanning mode, and carrying out enhancement detection to obtain quantitative diagnosis information of the interest points; and finally, a multi-level interactive report integrating global morphology, key point labeling and local diagnosis is generated. According to the method, the uncertainty of a traditional chemical corrosion method is solved, an intelligent detection normal form from global general survey to local fine survey is realized, the recognition precision and diagnosis capability of defects such as early-stage microcracks are improved, and an objective, accurate and quantitative basis is provided for material performance evaluation.

The invention relates to the field of geotechnical engineering monitoring. The invention provides a vibrating wire type stress meter and application thereof in tunnel surrounding rock stress monitoring. The device comprises a shaft sleeve, a steel bar, a fixing part, a steel string and an excitation sensing module, the end of the steel bar is located in the shaft sleeve, and the fixing part and the steel string are axially arranged in the shaft sleeve. Fixing parts are arranged at the two ends of the steel string, and the ends, away from the steel string, of the fixing parts are connected with the steel bars. The excitation sensing module is arranged above the steel string and installed outside the shaft sleeve. Wherein the middle part of the steel string is a twisted section, and two ends of the steel string are linear sections. According to the invention, the steel string preferentially releases geometric deformation under the action of axial tensile stress through the pre-arranged twisting section in the middle of the steel string, thereby effectively enlarging the amplitude change caused by micro stress, enhancing the response sensitivity of the steel string, breaking through the structural limitation that the stability and the sensitivity of a traditional stress meter are difficult to achieve at the same time, and improving the reliability of the stress meter. The method is suitable for high-reliability and high-precision application scenes in tunnel surrounding rock stress monitoring.

The invention discloses continuous annealing equipment and an annealing process for round steel bar annealing, and relates to the technical field of metal heat treatment equipment and processes, the continuous annealing equipment comprises an annealing furnace barrel, an annealing box heating pipe and a base, one side face of the annealing furnace barrel is fixedly communicated with an annealing box, and a public self-driving assembly is arranged in the annealing box. The rotary cylinder and the supporting disc are driven through the public self-driving assembly, the round steel bars are kept to rotate synchronously before and after entering the annealing box, continuous circulation and rotary annealing are achieved, compared with traditional stacking annealing, the round steel bars on the inner side of a material pile can also fully absorb heat, and therefore the problems that temperature distribution is uneven, and temperature rise of part of the steel bars is too slow are solved; therefore, the uniform annealing effect of each round steel bar is guaranteed, the internal structure uniformity, the hardness stability and the subsequent machining performance of the product are remarkably improved, and the machining safety and reliability of the material are improved.

A supporting assembly is arranged on the left side of a conveying assembly, a clamping assembly is arranged in the middle of the supporting assembly, a bending assembly A is arranged on the rear portion of the supporting assembly in a matched mode, and a bending assembly B is arranged on the front portion of the supporting assembly in a matched mode. The automatic reinforcing steel bar machining device has the advantages of automatically machining reinforcing steel bars and being high in reinforcing steel bar machining efficiency.

The invention provides a method, a system and equipment for detecting the lap joint length of reinforcing steel bars, a medium and a program product. The method comprises the following steps: acquiring a reinforcing steel bar lap joint image data set based on a reinforcing steel bar lap joint image; training a reinforcing steel bar lap joint neural network based on the reinforcing steel bar lap joint image data set; inputting the reinforcing steel bar lap joint image into the trained reinforcing steel bar lap joint neural network to obtain a prediction frame of a reinforcing steel bar lap joint area; extracting steel bar lap joint key point information based on the prediction frame of the steel bar lap joint area; and the lap joint length of the steel bar lap joint area is obtained based on the steel bar lap joint key point information. According to the method, the steel bar lap joint image is shot, the steel bar lap joint image is automatically analyzed in combination with the trained steel bar lap joint neural network to obtain the lap joint length of the steel bar lap joint area, the steel bar lap joint points and the lap joint length of the lap joint area can be efficiently, accurately and automatically detected, the detection efficiency and precision of the steel bar lap joint length are improved, and the detection accuracy of the steel bar lap joint area is improved. And manual intervention and personal errors are reduced.

The utility model relates to the technical field of cooling, in particular to a quenching cooling device for heat treatment of a wear-resistant steel bar, which comprises a box body, small holes and supporting legs, the small holes for the steel bar to pass through are formed in the middles of two sides of the box body, the supporting legs are mounted at four corners of the lower end of the box body, and a water storage tank is mounted at the upper end of the box body. A water storage tank is arranged in the box body, a spraying assembly capable of spraying steel bars in the box body is installed on the water storage tank, the bottom end of the interior of the box body is communicated with the upper end of the water storage tank through a circulation assembly, and a cooling box capable of cooling the circulation assembly is arranged at the lower end of the box body. According to the steel bar cooling device, spraying can be conducted on a steel bar located in the box body, then the steel bar can be cooled, and four water spraying pipes are arranged in a rectangular distribution mode, so that water can be sprayed on the steel bar in the circumferential direction at multiple angles, the steel bar is cooled more evenly on the circumferential section, and the quality effect of the steel bar can be improved easily.

The invention provides a reinforcing steel bar defect detection method and device based on machine vision, and is applied to the technical field of material nondestructive testing. The method comprises the following steps: acquiring reinforcing steel bar surface image data and internal nondestructive testing signal data associated with a unified space-time coordinate; processing and mapping the data to a unified three-dimensional space grid according to the space-time coordinates so as to generate a unified multi-channel feature tensor fusing surface and internal physical attributes; inputting the tensor into a pre-trained three-dimensional convolutional neural network model to cooperatively identify and output three-dimensional space distribution and types of surface and internal defects; and according to the distribution and the type, quantitatively evaluating the overall safety of the steel bar and outputting a detection conclusion. According to the invention, high-precision and automatic cooperative detection and comprehensive quantitative evaluation of the steel bar defect can be realized.

This invention discloses a novel cup rim measuring instrument, belonging to the field of measuring instrument technology. It aims to solve problems encountered when using conventional calipers to measure the rim of paper cups, such as significant influence from sample molding, substantial human error, insufficient accuracy, and the inability to avoid seam errors. The measuring instrument includes a base, a measuring cup pan, a dial, a steel bar, a calibration block, a turntable, a digital micrometer, an adjusting block, a locking structure, and an elastic reset component. High-precision measurement is achieved by using a flexible steel bar to conform to the cup rim contour, combined with the digital micrometer. A tension spring provides uniform preload, and the locking structure fixes the length of the steel bar. The mating structure between the adjusting block and the measuring head ensures accurate data. This measuring instrument offers precise and stable measurements, is easy to operate, and is suitable for various types of paper cups, especially for paper cup production quality inspection scenarios with high requirements for measurement accuracy and consistency.

1. The name of the design product: the head digital display screen of steel bar bender (HW8 type). 2. The use of the design product: the head digital display screen of steel bar bender. 3. The design points of the design product: the combination of shape and pattern. 4. The picture or photo that can best show the design points: perspective view.

The invention discloses round steel for a phi 300mm large-specification petroleum valve body and a production method of the round steel. The round steel comprises the following chemical components in percentage by weight: 0.17%-0.20% of C, 0.20%-0.30% of Si, 1.23%-1.35% of Mn, 0.015%-0.030% of Al, 0.005%-0.015% of V and the balance of iron and inevitable impurities. On the basis of solution strengthening of C and Mn, V, Al and other fine-grain alloy elements are designed and added, dispersed precipitation of carbon and nitride fine particles and solution strengthening of the V and Al elements are achieved through controlled rolling to refine grains, the strength and toughness of the round steel are greatly improved, it is guaranteed that the grains are fine, and the normalized V-type-50 DEG C low-temperature impact of the round steel is larger than 100 J; and the grain size in the hot rolling state is 6.5-7.0 grade, and the requirements of downstream customers can be completely met.

The utility model discloses a belt conveying device for section steel bundling. The belt conveying device comprises a base, a support, a straightening assembly, a guiding assembly, a length measuring assembly, a shearing assembly and a clamping and conveying assembly. The guide assembly, the length measuring assembly, the clamping and conveying assembly, the straightening assembly and the shearing assembly are arranged from left to right and are all connected with the support. The strip conveying device for section steel bundling can control the cut-off length of the steel strip extracted from the strip reel storage device, sizing operation of the section steel bundling length is achieved, and the bundling work efficiency is improved. Meanwhile, the drawn-out bent steel belt is automatically straightened, it is guaranteed that the steel belt is completely attached to the profile steel, the binding strength is improved, and the safety in the product logistics conveying process and the packaging reliability are guaranteed.

The utility model discloses a steel bar production processing conveying mechanism which comprises a conveyor main body, the conveyor main body comprises a main frame, auxiliary rotating rollers are installed in the middle of the interior of the main frame at equal intervals through bearings, and driving main rollers are rotationally connected to the two ends of the upper surface of the main frame through bearings. A motor is mounted at the end part of the driving main roller on the surface of the main frame; by designing a fixed clamping mechanism, an external thread ring can rotate in an internal thread clamping seat to fixedly mount an anti-skid pad, one end of a steel bar abuts against the surface of the anti-skid pad to push a supporting sliding rod to be embedded into a mounting rod, and after the steel bar is completely placed on the surface of an arc-shaped plate groove, the steel bar can be fixed to the surface of the arc-shaped plate groove. And the pressing spring deforms to drive the supporting sliding rod to be elastically connected with the mounting rod until the supporting sliding rod tightly presses the internal thread clamping base on the surface of the end of the steel bar for reinforcing mounting, and the steel bar is clamped and fixed to the surface of the arc-shaped plate groove and is stably conveyed through the conveying belt.

A process for manufacturing compact coils of ultra-fine grained martensite-free steel bars, the process comprising the following phases: a) rolling a billet by means of a roughing mill (1) of the steel bar; b) performing at least one first cooling stage (2) so that the steel bar has a surface temperature higher than the martensite start temperature (Ms) and at least one first equalization stage in air; c) rolling the steel bar by means of at least one intermediate mill (3); d) performing at least one second cooling stage (4) always keeping the surface temperature higher than the martensite start temperature (Ms) and at least one second equalization stage in air; e) rolling the steel bar by means of a finishing mill (5) in the non-recrystallization temperature range, keeping the entire cross section of the steel bar in said non-recrystallization temperature range and wherein the total reduction is between 25% and 50% with respect to the cross section of the steel bar at the inlet of the finishing mill, so as to obtain an ultra-fine grained austenitic matrix; f) winding the steel bar into compact coils by means of at least one winding device (7) so that the ultra-fine grained austenitic matrix transforms into a mixture of ferrite and pearlite. After the winding operation is completed, the compact coils can be conveyed to a storage area by means of a conveying device (8), for example a walking beam, in which the coils are subjected to natural cooling or forced cooling or delayed cooling.

The utility model discloses steel bar cleaning equipment, which belongs to the field of metal processing and surface treatment, and comprises a base station, and two groups of steel bar clamping and fixing mechanisms are mounted on the base station; a plurality of cleaning driving mechanisms are fixedly mounted at the upper end of the base; the cleaning driving mechanism comprises two cleaning assemblies, two adjusting assemblies and a mounting frame; the two cleaning assemblies are symmetrically arranged at the front end and the rear end of the mounting frame and located on the two sides of the steel bar, the adjusting assemblies correspond to the cleaning assemblies one to one, and the adjusting assemblies are used for controlling the cleaning assemblies to abut against the steel bar all the time; the cleaning assembly is connected with the adjusting assembly; the cleaning assembly is connected with the mounting frame, and the adjusting assembly is connected with the mounting frame. By means of the mode, the cleaning brush can be tightly attached to the steel bar all the time, and the cleaning effect of the cleaning brush on the steel bar is guaranteed; the steel bar clamping device can clamp and fix steel bars of different sizes, and meanwhile the steel bars can move front and back and cannot move up, down, left and right.

The invention relates to the technical field of metal plastic processing, and discloses a special-shaped steel bar drawing forming parameter optimization method and system. The method comprises the following steps: extracting geometrical characteristics of a special-shaped section and performing flow field simulation to generate a flow velocity distribution diagram; identifying a potential eddy current region through velocity gradient analysis and determining an influence range of the potential eddy current region; a material flowing path is tracked in the influence range, and a vortex intensity distribution diagram is generated; performing correlation analysis on the vortex intensity distribution diagram and the wall thickness deviation data, and adjusting lubrication process parameters to generate a lubrication condition distribution diagram; superposing and mapping the lubrication condition distribution diagram and the flow velocity distribution diagram, analyzing the influence of shear extrusion stress on the wall thickness evolution, and determining a drawing velocity compensation field; the simulation parameters are updated according to the drawing speed compensation field, and a wall thickness prediction distribution diagram is generated; and by taking the wall thickness uniformity as a target function, iteratively calculating a drawing speed compensation field through an optimization algorithm, and generating drawing forming control parameters. According to the method, the wall thickness uniformity and the machining precision of the special-shaped steel bar are improved.

The utility model relates to an induction heating device for heating a steel bar, the induction heating device comprises a rack and an induction heating assembly, the induction heating assembly comprises a heating coil and a power supply box, the rack is arranged on the power supply box, the heating coil is arranged on the rack, the power supply box is used for heating the heating coil, and the induction heating device comprises a detection assembly, the detection assembly comprises a temperature detector and an indicator light, the temperature detector is arranged on the power supply box and faces a steel bar in the heating coil, and the indicator light is arranged on the power supply box and used for being electrically connected with the temperature detector. The device has the effect that the steel bar is heated to the set temperature, so that the quality of the subsequent steel bar in the stamping process is improved.

The utility model discloses a quality inspection device for steel bar production, and relates to the technical field of testing. A quality inspection device for steel bar production comprises a steel bar quality inspection table, a detector is arranged at the top of the steel bar quality inspection table, a material guiding assembly and a bar cleaning structure are arranged at the top of the steel bar quality inspection table, the bar cleaning structure is located on the steel bar quality inspection table, and the bar cleaning structure comprises a bar cleaning box, a rotary drum, a connecting pipe, an impurity discharging box and an exhaust fan. Through cooperation of a gear, a gear ring, a rotary drum, a cleaning brush, a connecting pipe, an impurity discharging box, an exhaust fan and a collecting drawer, the rotary drum can rotate under meshing connection of the gear ring and the gear, so that cleaned chippings can be conveniently sucked into the bar cleaning box through a plurality of chipping suction holes in the rotary drum, and then the chippings can be conveniently sucked into the bar cleaning box through the suction of the exhaust fan. And the chippings can be sucked into the collecting drawer in the impurity discharging box to be collected in a centralized mode, so that secondary pollution caused by the chippings is avoided, and the cleaning effect on the bars is further improved.

The invention provides a method for controlling steel heaping of deformed steel bars at an outlet of a module rolling mill and a guide and guard supporting structure. The method comprises the steps that the abnormally-large degradation low-biting impact of the head of a rolled piece is controlled by controlling the size of a finish rolling outlet; the head temperature of the deformed steel bar entering a module rolling mill is increased by controlling a water tank controlled cooling mode; according to the finished product rack outlet guide and guard device, steel stacking caused by sidewise bending of the outlet guide and guard deformed steel bar can be avoided, the performance of the head of the deformed steel bar is guaranteed, performance fluctuation is avoided, meanwhile, the supporting force of the outlet guide and guard device is improved, the structure of the guide and guard point is optimized, and steel stacking caused by outlet impact is avoided.

The application discloses a kind of steel bar end face detection systems based on deep learning, comprising: data acquisition and pre-processing module, for collecting steel bar end face image, generates end face structure state set;Improved NTK processing module, for constructing improved NTK, generates end face structure kernel mapping result;Structure accessibility analysis module, for constructing end face structure transformation path set, generates structure accessibility measurement matrix;Kernel self-driving module, for performing kernel self-driving evolution, generates kernel stable solution;Cross-sample coupling module, for establishing cross-sample kernel coupling relationship, generates group consistency constraint result;Kernel fission recombination module, for splitting and recombination, generates recombination kernel response result;Detection result generation module, for generating steel bar end face structure detection result.The application is based on improved NTK and structure path modeling, realize steel bar end face multidimensional feature fusion detection, with the advantages of high precision, strong stability and strong complex defect recognition ability.

The utility model provides a straightening device for reinforcing bar production relates to reinforcing bar production technical field, including base, the base upside fixed mounting has the mounting plate, the mounting plate board body installation is used for straightening reinforcing bar's straightening assembly, the mounting plate one side is equipped with the feeding assembly for guiding reinforcing bar, the base upper surface is equipped with the sliding slot, the sliding slot inside slide installation is used for the segmentation assembly of quantitative segmentation reinforcing bar. Through locking the current position on the limiting baffle of screw sleeve and positioning screw thread cooperation can lock, avoid subsequent reinforcing bar ejection and cause the limiting baffle activity influence segmentation, wherein through the convex board surface is equipped with a plurality of positioning hole, according to need inserts the positioning screw into corresponding positioning hole, thereby realizes the quantitative segmentation operation of different length, relative to the manual segmentation after the straightening of prior art device, the application can carry out automatic segmentation operation after reinforcing bar straightening, effectively improves reinforcing bar processing efficiency.

The invention relates to the field of metallurgy, and discloses a large-size maraging stainless steel bar and a preparation method thereof, the diameter of the bar is larger than or equal to 300 mm, and the method comprises a vacuum induction melting stage, a vacuum consumable remelting stage, a fast forging cogging stage and a precision forging forming stage; wherein the vacuum consumable remelting stage comprises an arcing stage, a stable smelting stage and a filling smelting stage; in the arc starting stage, a molten pool is formed by adopting a current of 8-12 kA; in the stable smelting stage, the smelting speed is 4.2-4.8 kg / min, the molten drop is 3-5 s <-1 >, the molten drop short-circuit time is 0.6-0.8 s, and inert gas is started to be filled for cooling after smelting is conducted by the preset weight; and in the filling smelting stage, inert gas filling is stopped, and the current and the melting speed are controlled to descend in a stepped mode. According to the method, the uniformity of components and structures can be improved, so that the mechanical property of the large-size maraging stainless steel bar is improved.

The utility model belongs to the technical field of longitudinal shearing unit feeding, and discloses an adjustable feeding guide device for a longitudinal shearing unit, which comprises a top plate, and a hydraulic telescopic shaft II is arranged in the middle of the top plate in a penetrating manner. The output end of the second hydraulic telescopic shaft further comprises an adjusting assembly, the adjusting assembly comprises a fixing plate fixedly arranged at the output end of the second hydraulic telescopic shaft, a servo motor is fixedly arranged on the right side of the fixing plate, and a pressing wheel adjusting structure in the adjusting assembly is matched with a lower wheel guiding structure. The feeding operation of the steel bars can be guided, the situation that feeding errors occur to the steel bars is reduced, it is guaranteed that the errors of the steel bars are continuously increased in the shearing operation process, the left-right adjustment of the pressing wheel structure is matched, the steel bars which are continuously fed and have different widths can be better matched, the upwarp situation is prevented, the stable shearing of the steel bars is maintained, and the shearing efficiency of the steel bars is improved. And the steel bars meeting the standard are produced.

The utility model discloses a continuous type screw heading machine which comprises a feeding seat, a clamping seat and a die head which are fixedly installed on an operation table, the feeding seat, the clamping seat and the die head are sequentially and fixedly connected and are provided with feeding through holes in a penetrating mode, and a clamping assembly used for clamping a steel bar passing through the feeding through holes is installed on the clamping seat. The die head is provided with a forming groove communicating with the feeding through hole, a cutting assembly and an auxiliary supporting assembly are arranged on one side of the die head, and the cutting assembly is located between the die head and the auxiliary supporting assembly. The device has the advantages that the production and processing efficiency can be improved, the stability is high, and the use is convenient.

The utility model provides a steel bar butt joint auxiliary device which comprises a positioning sleeve, a steel bar butt joint auxiliary device and a steel bar butt joint auxiliary device. The end, away from the positioning sleeve, of the matching sleeve is provided with a screw hole used for transmitting collected information to a next section of steel bar screw head. The lock nut is detachably arranged at the opposite ends of the positioning sleeve and the matching sleeve in a sleeving manner and is used for connecting the positioning sleeve and the matching sleeve; the supporting frame is provided with a mounting hole allowing the matched sleeve to penetrate through and is provided with a fastening assembly used for locking the matched sleeve; and the positioning sleeve is in threaded connection with the screw hole of the matching sleeve. The information of the previous section of steel bar wire head is obtained through the positioning sleeve, and the information of the wire head is transmitted to the next section of steel bar wire head through the matching sleeve communicated with the wire hole of the positioning sleeve, so that an indirect matching effect can be realized, the wire alignment precision between steel bars is ensured, and a manufactured steel bar product part does not need to be moved; and a long-line or short-line matching manufacturing method required by traditional straight thread connection is replaced.