53 results about "Steel bar" patented technology

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.

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 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.

This utility model discloses a steel bar bending device, belonging to the field of metal processing technology. It includes a base, a fixed platform, and a rotating component. The fixed platform is mounted on the base and has two limiting posts. The steel bar is placed between the two limiting posts. The rotating component is sleeved on the fixed platform and can rotate on it. The rotating component has a stop post; rotating the rotating component causes the stop post to abut against the steel bar, causing it to rotate and bend. The base has a positioning component, and the rotating component has a limiting block. When the rotating component rotates to a preset angle, the positioning component abuts against the limiting block, limiting the rotation of the rotating component. This utility model can achieve precise bending of steel bars, greatly improving production efficiency and bending accuracy compared to traditional manual bending methods. It can also meet the needs of different bending angles for steel bars, enhancing the versatility of the device.

This application discloses a rapid positioning device for sonic logging tubes in pile foundations, comprising a pile hole, a reinforcing cage disposed within the pile hole, the reinforcing cage including a plurality of vertical main bars spaced circumferentially and a plurality of outer stirrups welded to the outside of the vertical main bars at vertical intervals, and further including: a plurality of inner stirrups welded to the inside of the vertical main bars at vertical intervals; a positioning member connected to the inner stirrups to position the sonic logging tube; and a connecting member, one end of which is welded to the inner stirrup, and the other end of which is welded to the positioning member. The inner and outer stirrups work together to form a double constraint, thereby enhancing the overall rigidity and shape stability of the reinforcing cage. The connecting member, as a rigid connecting arm, together with the positioning member, ensures that the sonic logging tube maintains a constant preset distance from the main body of the reinforcing cage in the vertical direction, which is beneficial for the effective transmission of ultrasonic signals and for improving the quality of the final bridge pile body.

The utility model relates to an automatic spraying device for steel bar surface spraying decarburization separator, including spraying mechanism, feeding mechanism and blanking mechanism, the spraying mechanism includes fixed frame, is equipped with a circle of spray pipe in fixed frame, and the spray pipe is arranged in vertical plane, and the spray pipe is connected with feed pipe, and the outer end of feed pipe is connected to the material tank with decarburizer, and the spray pipe is uniformly provided with four spray nozzles, and all spray nozzles are aimed at the center of fixed frame, the feeding mechanism and blanking mechanism are arranged respectively at both sides of fixed frame, and the feeding mechanism includes conveying roller bed A, and the support height of conveying roller bed A is matched with the center height of fixed frame to make steel bar pass through the center of fixed frame, the blanking mechanism includes conveying roller bed B, and the support height of conveying roller bed B is same with conveying roller bed A, the utility model has realized the automatic spraying decarburization separator to steel bar surface, has promoted work efficiency, and has reduced the labor intensity of worker.

The high-performance steel bar of one embodiment of the present invention comprises 0.03 to 0.17 wt% carbon (C), greater than 0 and less than or equal to 0.50 wt% silicon (Si), 0.50 to 2.50 wt% manganese (Mn), greater than 0 and less than or equal to 0.02 wt% phosphorus (P), greater than 0 and less than or equal to 0.02 wt% sulfur (S), 0.30 to 1.00 wt% nickel (Ni), 0.002 to 0.500 wt% chromium (Cr), greater than 0 and less than or equal to 0.20 wt% copper (Cu), 0.003 to 0.150 wt% molybdenum (Mo), greater than 0 and less than or equal to 0.040 wt% aluminum (Al), greater than 0 and less than or equal to 0.015 wt% nitrogen (N), and the balance iron (Fe) and unavoidable impurities. The yield strength (YS) at room temperature is greater than 600 MPa, and the yield strength (YS) at ultra-low temperature is greater than 820 MPa.

The utility model relates to a heat preservation box for steel bar heat treatment processing belongs to steel bar heat treatment technical field. The heat preservation box for steel bar heat treatment processing, include: base, the base top fixedly connected with the box, the box top is provided with the apron, the both sides of box all are set up with the access -exit mouth that communicates with the heat preservation cavity, the heat preservation cavity is distributed with a plurality of symmetrical settings support in, the support is rotatably connected with the guide wheel on, the guide wheel surface is set up with the limit slot that corresponds with steel bar, the access -exit mouth diameter corresponds with steel bar diameter setting, the heat preservation box is set up through the cooperation of box, apron and heat preservation cavity, provides the stable heat preservation space for steel bar before entering the water tank after heating. The guide wheel and the limit slot that set up can accurately guide steel bar to convey, cooperate with the access -exit mouth that is adapted to the diameter of steel bar, reduced the swing and heat loss in the steel bar conveying process, the steel bar is convenient for fast in and out heat preservation cavity, improves production efficiency.

The present application belongs to the technical field of bearing steel hot rolling, and particularly relates to a hot-rolled bearing steel bar reticular carbide control model. The control model sets the roughing temperature range, the finishing temperature range, the temperature range entering the reducing and sizing unit, and the temperature range after the second water cooling in the control model, and combines the preset rolling specification and the performance of the cooling equipment. Since the parameters of the rolling system corresponding to the preset rolling specification are uniquely determined, the rolling speed of the rolling system and the fixed parameter data of the cooling equipment are determined during rolling, forming a fixed combination model of the rolling speed and the rolling cooling data suitable for the preset rolling specification bar. During production, only the respective data based on the rolling specification needs to be input in the computer control module or the corresponding rolling model needs to be directly called, so that the rolling quality is stably controllable.

This utility model discloses a spring-loaded, tool-free fastener, belonging to the field of fastener technology. It includes: a steel bar with several positioning holes on one side wall and an expansion groove on the other side wall; a snap-fit ​​assembly located at one end of the steel bar for securing it to an object; and an expansion assembly located on the inner wall of the expansion groove for changing the fastening area of ​​the steel bar. In this utility model, by providing the expansion assembly, the steel plate moves within the expansion groove of the steel bar, allowing adjustment of its position as needed, thereby changing the overall area of ​​the steel bar. This achieves an adjustable contact area for the fastener, enabling adjustments based on different requirements, thus improving its applicability and practicality.

The utility model discloses a kind of for small-specification bar finish rolling unit cutting guide groove, it is related to steel bar technical field, including: base, bottom plate, first side plate, second side plate and at least one line plate unit, bottom plate is installed on base;First side plate and second side plate are fixed to the both sides of bottom plate and form trapezoidal with cross section being wide in front and narrow in back;Line plate unit is installed on the bottom plate between first side plate and second side plate, first side plate, second side plate and line plate unit jointly constitute progressive spacing control channel to make the line distance of rolling piece gradually converge to target line distance, simple structure, convenient to use, effectively improve rolling mill hot rolling guide efficiency effectively avoid the occurrence of rolling piece accumulation flying out and injuring situation.

This utility model provides a steel bar cutting device, relating to the field of steel cutting technology. It includes a cutting platform, an extension disc, and a side disc, as well as a locking assembly. The locking assembly includes a vertical plate slidably connected to the extension disc, a chuck slidably connected to the outer top of the vertical plate, a limit post fixedly connected to one end of the chuck, a telescopic post slidably connected to the end of the limit post near the chuck, a spring sleeved on the outer side of the telescopic post, and a spring fixedly connected to the end of the telescopic post away from the limit post. The limiting assembly includes a groove formed inside the extension disc, with a nut inside the groove and a bolt threaded into the nut. This design achieves a bidirectional clamping effect, further ensuring stable positioning of the steel bar, thus avoiding frequent manual adjustments, improving the accuracy and safety of the cutting operation, and effectively preventing uneven deformation of the cutting platform.

This invention relates to a large-size, high-density, high-carbon, high-silicon hot-rolled round steel bar and its preparation method. The chemical composition of the hot-rolled round steel bar, by weight percentage, includes: C: 0.60%~0.70%, Si: 1.70%~1.95%, Mn: 0.80%~0.90%, P≤0.015%, S≤0.015%, Cr: 0.80%~0.90%, Ni: 0.20%~0.25%, Mo: 0.05%~0. 0.10%, Al: 0.015%~0.035%, N: 0.0045%~0.010%, with the remainder being Fe and unavoidable impurities; it can balance toughness and wear resistance, and under the high carbon, high silicon, and high chromium composition system, it can effectively improve the internal density of hot-rolled round steel with a maximum φ110mm specification, meet the stringent flaw detection requirements of equivalent "≤φ1.3", and is suitable for the high-strength and high-wear working conditions of coarse copper ore grinding balls.

The utility model relates to a pedal type reinforcing steel bar binding device and relates to the technical field of reinforcing steel bar binding devices, and the technical scheme comprises a stand, a first sleeve pipe slidably connected with the stand, a second sleeve pipe slidably connected with the first sleeve pipe and a nail device, the first sleeve pipe is further provided with a stop device, the bottom of the first sleeve pipe is provided with a base, the base is provided with a pair of guide grooves, the groove bottom of the guide groove is a smooth curved surface, a first compression spring is arranged between the second sleeve pipe and the base, the nail device is located at the top of the base and comprises a box body connected with the second sleeve pipe, the box body is provided with a sliding groove, the sliding groove is slidably connected with a tongue depressor, the tongue depressor is provided with a pedal, a second compression spring is arranged between the pedal and the box body, a guide rail is further arranged on one side of the box body, the guide rail is slidably connected with a binding nail belt, and the box body is further provided with a nail inlet.

The utility model relates to basement outer wall settlement post-pouring band technical field, and disclose a kind of basement outer wall settlement post-pouring band advance sealing structure, including outer wall, the post-pouring band is set in outer wall and is provided with post-pouring band inner wall body reinforcement, the side of outer wall is provided with baffle, the middle part of baffle is provided with first screw hole, the side of first screw hole is provided with second screw hole.Post-pouring band is adhered when baffle is lifted and adhered on outer wall, steel rope can pass through multiple post-pouring band inner wall body reinforcement, by second inner hexagonal hole bolt is rotated using tool such as inner hexagonal wrench, make steel rope and post-pouring band inner wall body reinforcement closely adhere, so that baffle and outer wall closely adhere, the end of first inner hexagonal hole bolt in post-pouring band is rotated and connected with pull rod with pull ring, the pull ring of pull rod two ends is then with steel rope and is sleeved, when post-pouring band inner wall body reinforcement is deformed and leads to baffle loosening, rotate first inner hexagonal hole bolt to make steel rope shrink again.

This utility model provides a rapid inspection fixture for the straightness of steel bars, relating to the technical field of steel bar testing equipment. It includes two supporting base plates, each with a processing platform mounted on top. The fixture comprises supporting base plates, processing platforms, limiting seats, and limiting guide rails. A laser displacement sensor is installed inside a second mounting cavity. The laser displacement sensor is used to precisely measure the positional changes on the steel bar surface. A limiting sleeve is aligned with the surface of the limiting seat and installed. Two first positioning bolts position the limiting sleeve and the limiting seat, and two second positioning bolts position the steel bar and the limiting seat until the steel bar is in a convenient testing position. This meets the testing needs of steel bars of different specifications, improving the overall flexibility of the equipment. A first reinforcing side plate reinforces the connection between the support platform and the support column, thereby improving the stability of the equipment.

This utility model discloses an automated equipment for feeding, cutting, and conveying round steel bars, comprising a round steel bar support, a conveyor belt body, and a cutting blade body. An intercepting plate is fixedly connected to the end of the round steel bar support, and a lifting circular groove plate is fixedly connected to the right side of the intercepting plate. Both the end of the round steel bar support and the lifting circular groove plate have ejection slots. A primary ejection plate and a secondary ejection plate are slidably connected within the ejection slots. An ejection base plate is fixedly connected to the end of both the primary and secondary ejection plates, and a cylinder is fixedly connected to the bottom of the ejection base plate. Through the coordinated step-by-step movement of the ejection plates, the primary ejection plate first ejects the round steel bar away from the support and across the intercepting plate to the lifting circular groove plate. Then, the secondary ejection plate pushes the round steel bar into the V-shaped guide groove. This design completely solves the common problem of multiple round steel bars simultaneously jamming in traditional gravity-feed feeding systems, avoiding material blockage and ensuring the stability of continuous equipment operation.

The utility model discloses a kind of drying device for steel bar heating quenching, it is related to steel bar drying technical field, including drying cabinet, inside a group of conveying components are movably connected in the drying cabinet, the conveying component includes conveying piece one and conveying piece two, conveying piece one and conveying piece two are horizontally staggered arrangement, and conveying piece two is located above conveying piece one, the outside of conveying piece one is fixedly connected with several supporting blocks. The utility model is adjusted component by being set, so that the direction of steel bar movement is opposite with the direction of chain belt two rotation, several stirring strips are fixedly connected on chain belt two, because there is lineament uneven on steel bar surface, when stirring strip and the outside of steel bar in movement contact, so that steel bar continuously rolls on supporting block, so that steel bar posture is continuously adjusted, it is beneficial to drying cabinet top heating device can be fully dried on steel bar surface.

The utility model discloses a quick -wearing formula graphite grounding electrode, including steel bar and wiring assembly, be equipped with graphite coating on the steel bar, the top of steel bar coaxially is equipped with the sheath, the bottom of steel bar is equipped with the drill bit, the upper end of steel bar is equipped with the outgoing line, be equipped with the wiring assembly for connecting electric wire on the outgoing line, wiring assembly movable setting on the outgoing line, wiring assembly can move to separate the outgoing line, through fixed component fixed connection between wiring assembly with the outgoing line. The utility model discloses can conveniently insert the ground and use, and the device can be more convenient electric wire and the installation connection of the device through wiring assembly, and the device can be more convenient the installation operation of the device and electric wire according to the situation through movable wiring assembly, thereby effectively improve the wiring efficiency of staff.

The utility model relates to forging steel bar cutting technical field especially relates to a kind of metal circular sawing machine for forging steel bar cutting.The utility model provides a kind of metal circular sawing machine for forging steel bar cutting, including frame, conveying shell, motor, spiral rod, hopper, fan and collection frame etc., frame top front side is equipped with conveying shell, the right side position of frame top at conveying shell is equipped with motor, the output shaft of motor is connected with spiral rod, conveying shell top right side is connected with hopper, hopper left and right sides are both equipped with fan, frame left part front side is connected with collection frame.The utility model is through the fan and spiral rod of synchronous starting when cutting machine cutting, effectively collect splashing iron filings and floating debris, concentrated conveying to collection frame by hopper, reached the effect that significantly reduce environmental pollution, eliminate operation safety hidden danger and reduce equipment maintenance difficulty.

The present application belongs to the field of crack detection, and particularly relates to a steel bar mechanical connection joint fatigue crack acoustic emission positioning monitoring system, comprising: through adaptive wavelet packet decomposition, micro-crack main frequency band coefficients are extracted and single node reconstruction is carried out, interface scattering is suppressed to obtain narrowband direct wave; the equivalent wave velocity is corrected in real time by using the contact stiffness-load curve, and the three-dimensional coordinates of the crack source are solved by combining the generalized cross-correlation time difference and the weighted iterative least square method; the event space is clustered in the unit load cycle, and the cumulative energy-cycle relationship is established, the residual life is evaluated according to the damage evolution model, and the alarm is triggered; the present application realizes high-precision positioning and early warning of micro-crack initiation under strong interference working conditions.

This invention discloses an intelligent baby-soothing electronic device, belonging to the field of baby soothing. The device includes a mattress and a base. Multiple reset steel bars are fixedly connected to the bottom of the mattress. These reset steel bars are naturally straight, but their cross-sections are arc-shaped. Rotating shafts are fixedly connected to the bottom of each reset steel bar on both sides. Support frames are rotatably connected to the bottom of each rotating shaft on both sides. A lower support frame is fixedly connected to the support frame, and a telescopic outer rod is fixedly connected to the bottom of the lower support frame. The advantages of this invention compared to existing technologies are: this device eliminates the need for guardrails. When the baby lies on it, the reset steel bars bend under gravity, causing the sides to curve upwards to prevent the baby from falling. Simultaneously, a massage cam gently taps the bottom of the mattress on the baby's back, simulating the process of parents soothing the baby to sleep. Soft music is played simultaneously. Once the baby is asleep, the massage cam stops tapping, and the music stops playing, making it highly practical.

The utility model relates to a labor -saving controllable bending angle's steel bar bending tool belongs to steel bar bending tool technical field, including mounting seat, is connected with the mounting sleeve on the mounting seat, the movable rod is slidably connected on the mounting sleeve, is equipped with the mounting seat on the movable rod, is installed with the limit roll on the mounting seat, the adjustable bending assembly of controllable steel bar bending angle is connected on the mounting sleeve, the waist type hole is established in the connecting seat, the limiting hole of connecting seat and located one side of waist type hole, the scale line is equipped on connecting seat and located one side of limiting hole, adjustable bending assembly includes the rotary lever, the utility model discloses through adjustable bending assembly, scale line, waist type hole and limiting hole, flexible adaptation various different bending angle demand, with the intuitive indication characteristic of pointer, make the user can clearly and intuitively observe the current bending angle, significantly improved the accuracy of angle regulation, thereby more convenient and efficient control angle change in the operation process.

The application provides a steel bar processing optimization control system and method based on digital twinning, relates to the technical field of digital twinning, and the system comprises: a model construction module, which is used for constructing a digital twinning geometric model and establishing a corresponding relationship between processing stations and processes; a serialization coding module, which is used for generating a station sequence; a station division module, which is used for dividing multiple processing windows; a state analysis module, which is used for obtaining multiple sets of processing parameter adjustment values; a global optimization module, which is used for obtaining global scheduling instructions; and a process execution module, which is used for executing process processing. Through the application, the technical problems of low processing efficiency and lack of coordination of equipment parameter adjustment caused by unreasonable station layout and scheduling in the traditional steel bar processing process can be solved, and the technical effects of realizing dynamic adjustment in the processing window and global collaborative optimization based on digital twinning and a local attention mechanism, improving steel bar processing precision and overall production efficiency are achieved.

This application provides a two-splitting rolling process for Φ25 threaded steel bars, comprising: heating a steel billet; obtaining a rough-rolled intermediate billet from the heated steel billet after rough rolling; obtaining an intermediate-rolled intermediate billet from the rough-rolled intermediate billet after intermediate rolling; and sequentially deforming and splitting the intermediate-rolled intermediate billet using a vertical rolling pass, a pre-cut double-cut pass, a split double-cut pass, an elliptical pass, and a circular pass to obtain two-splitting rolled pieces; adjusting the finishing rolling speed according to the elongation coefficient and the real-time rolling temperature to complete the rolling process. This method employs a progressive pass combination, with three stages of control: vertical rolling pass initiation and splitting preparation, preliminary separation using the pre-cut double-cut pass, and final shaping using the split double-cut pass. Combined with a dynamic speed control system, it monitors the elongation coefficient and rolling temperature in real time, automatically compensating for changes in deformation resistance, allowing residual stress to be gradually released during deformation of the rolled piece, avoiding segregation problems caused by uneven temperature in traditional processes.

The utility model discloses a steel bar feeding mechanism of centerless grinding machine, including mounting panel, two limit boards are fixedly connected with the upper portion of mounting panel, the both sides of two limit boards are away from each other and are fixedly connected with support plate respectively, the inclined plane of two slopes is opposite, and the V type groove is formed between two slopes, and the passage no.

The present application relates to automatic installation and dismounting device of steel reinforcing bar pressing sheet, the present application is arranged with several positioning plates in the direction of transverse extension for installing swing shaft V-shaped wrench, the end side of cross frame is arranged with rotary drive cylinder, the swing shaft V-shaped wrench includes: swing shaft, V-shaped wrench, the swing arm is arranged on the shaft upper end of swing shaft, the swing shaft is connected with V-shaped wrench, the V-shaped notch of V-shaped wrench is arranged for adapting pressing sheet flat head, the swing arms of several swing shaft V-shaped wrenches are connected in sequence through connecting rod, and are drivenly connected with the rod end of rotary drive cylinder, two suspension lifting mechanisms are arranged side by side on cross frame, the suspension lifting mechanism includes: support, sliding table, lifting cylinder, translation cylinder, the support is arranged on cross frame, the support is arranged with sliding table, the lifting cylinder is fixedly penetrated in sliding table and the rod end is in the same direction with V-shaped notch, the translation cylinder is arranged on the side of support, the rod end drives sliding table to slide, the rod end of lifting cylinder is T-shaped round head structure, each V-shaped wrench corresponds with pressing sheet flat head on die, and T-shaped round head adapts die fracture groove.

This utility model discloses a composite axial cold-extruded rebar connecting sleeve, including an inner sleeve and an outer sleeve. The outer sleeve is fitted outside the inner sleeve, and two rebars are respectively inserted into both ends of the inner sleeve. Locking rings are fitted on the outer sides of both ends of the inner sleeve. This relates to the field of rebar connection technology. By setting an outer sleeve outside the inner sleeve, the locking rings are locked between the outer sleeve and the inner sleeve, preventing the locking rings from deforming under force and avoiding them from falling off, making the installation more stable. At the same time, a limiting pin is inserted at the center of the inner sleeve and the outer sleeve, so that the two rebars are inserted into the inner sleeve at the same length, and the force on both ends of the inner sleeve is more uniform, improving the rebar connection effect.