264 results about "Bending force" patented technology

The invention discloses an insertion tube and a manufacturing method thereof, an insertion part and an endoscope, and relates to the technical field of medical instruments, the insertion tube comprises an insertion body and an elastic tube, a first reinforcing layer and a second reinforcing layer are arranged in the insertion body, the second reinforcing layer is arranged outside the first reinforcing layer in a surrounding mode, and the first reinforcing layer is provided with a concave part. The first reinforcing layer and the second reinforcing layer can form double limiting and wrapping supporting on the elastic pipe, the concave shape of the concave part of the first reinforcing layer is utilized to be attached to the outer wall outline of the elastic pipe, and the outer side of the second reinforcing layer is matched for enclosing and restraining, so that the installation stability of the elastic pipe in the first channel can be greatly improved; bending moment generated by self-gravity, external force and the like of the elastic tube is effectively counteracted, the elastic tube is prevented from being bent under the action of self-gravity, external force and the like, the whole insertion tube is prevented from deforming along with bending of the elastic tube, and the form stability of the insertion tube in the cavity in the propelling process is guaranteed. And the straightness of a traction rope transmission path and the accurate conduction of a control instruction are ensured.

The present application relates to steel cage welding processing equipment technical field, and particularly to a kind of steel cage welding equipment, comprising: welding frame, support frame of support longitudinal reinforcement, traction frame of traction longitudinal reinforcement are sequentially arranged on welding frame;Longitudinal reinforcement is installed on the installation mechanism of support frame;Longitudinal reinforcement on support frame is pushed to the pushing mechanism on traction frame;The support frame is composed of mounting frame, rotating disc;The mounting frame is fixedly connected with the welding frame;Rotating disc is rotatably installed on the mounting frame;A kind of steel cage welding equipment of the present application is replaced by setting installation mechanism, artificial longitudinal reinforcement perforation work, to reduce the problem that horizontal muscle slips and causes worker injury, reduces welding efficiency;On the one hand, longitudinal reinforcement is translated to the butt joint of traction frame along axial direction;On the other hand, longitudinal reinforcement is supported, to prevent longitudinal reinforcement from causing outward bending force on the clamping block and the block on support frame when passing through support frame.

The invention relates to a hot continuous rolling strip steel plate shape control method and device and electronic equipment. The method comprises the steps that plate blank PDI data, equipment parameters and model parameters are read; calculating speed, temperature and thickness parameters of each finish rolling rack based on a finish rolling model; the roll bending force set value of each rack is calculated, and the roll bending force reference value, the convexity self-learning distribution value, the straightness self-learning distribution value and the operator intervention value of the SAMP model table are superposed in response to the situation that the rolling specification is not replaced, so that the roll bending force set value is generated; in response to replacement of steel types, thickness or width specifications, on the basis of superposition of non-replaced specifications, a roll bending force difference value of the SAPP model table and the SAMP model table is introduced to be multiplied by a dynamic adjustment coefficient, and a roll bending force set value is generated; a roll bending force set value is issued to an execution system at the finish rolling inlet moment; and the actual convexity and straightness of the finish rolling outlet strip steel are collected, target values are compared, and the set value of the next plate blank is corrected through self-learning. The method improves the target convexity and straightness hit rate of the hot-rolled strip steel.

The invention discloses a critical parameter prediction method for a vertical cantilever fluid conveying pipe comprising a water injection pump and a Y-shaped nozzle, and relates to the field of fluid conveying pipe critical parameter calculation. The prediction method is based on an Euler-Bernoulli beam model and a momentum theorem, bending force, centrifugal force, Coriolis force, inertia force, gravity and additional force generated by an elbow are comprehensively considered, and an oscillatory differential equation of the fluid conveying pipe is established. The method comprises the following steps: performing dimensionless processing on an oscillatory differential equation by introducing dimensionless parameters, deducing a characteristic equation, a characteristic function and a characteristic value under a cantilever boundary condition, converting a partial differential equation into an ordinary differential equation set, and performing matrix solution; and finally, accurate prediction values of the critical flow velocity and the critical frequency can be obtained. The method can effectively reflect the influence rule of the nozzle and the concentrated mass on the vibration characteristics of the fluid conveying pipe, and realizes the accurate prediction of the critical parameters of the vertical cantilever containing the concentrated mass belt Y-shaped nozzle fluid conveying pipe.

The invention discloses anti-torsion measuring equipment for multi-directional stress of a sectional material. The anti-torsion measuring equipment comprises the sectional material and measuring equipment for applying torsion to the sectional material, the measuring device comprises: a support frame; the movable plate is mounted on the supporting frame, and a lifting mechanism is arranged between the movable plate and the supporting frame; the torque applying system is arranged on the moving plate, comprises a motor, a belt pulley transmission structure, a speed reducer, a coupler, a rotating shaft, a universal joint I and a three-jaw chuck I, and is used for applying torque to the top end of the profile; the invention belongs to the technical field of profile detection, aims to solve the problem that only pure torque or single-direction bending force can be tested in the prior art, and achieves the technical effect that composite loading of profile axial torque and spatial omnidirectional lateral force is realized through circumferential rotation driven by a planetary gear and pitching adjustment of an arc-shaped rod-sliding block.

The invention relates to a rapid and intelligent stamping method for hardware products, belongs to the technical field of intelligent stamping of the hardware products, solves the problem of resilience through the combined action of temperature gradient control and partition mechanical compensation, is provided with a heating and cooling unit at a bending station, and is pre-pressed through a low-friction coating pressure plate and a high-strength spring at an outer tension area, so that the metal products are rapidly and intelligently stamped. In the inner side pressed area, a stepped material ejecting block is designed to be matched with a multi-rigidity spring set, so that partition elastic yielding is achieved, redundant materials are absorbed, wrinkling is restrained, a wedge-shaped ejector rod and a wedge-shaped floating sliding block are designed in a transition area, and springback is counteracted through material ejecting and pressing and active pre-compression in the middle and later period of bending; besides, the bending force curve is monitored in real time through intelligent closed-loop control, theoretical value deviation is compared, temperature control parameters and the bending speed are adjusted in a self-adaptive mode till the springback value is stabilized within the error range, and the problems of how to synchronously restrain bending defects and accurately control the springback value in the continuous stamping process in the prior art are solved.

The invention provides a plate shape control and plate thickness precision collaborative optimization method in the rolling process of a cold-rolling mill, which relates to the technical field of cold-rolling mill control, and comprises the following steps: acquiring contact parameters between a rolling working roll and a supporting roll, determining a contact stress distribution state, and acquiring the bending deformation of the working roll; constructing a coupling mapping relation between plate shape moment distribution and stress distribution; a compensation coefficient is adaptively adjusted according to the rolling state, and a dynamic collaborative optimization objective function is established; and working roll bending force and supporting roll displacement meeting the target are obtained through calculation, and rolling parameters are adjusted in real time. According to the method, cooperative control over the plate shape and the plate thickness is achieved, and the quality of cold-rolled products is improved.

The invention relates to the technical field of mechanical fatigue testing, in particular to rotary bending fatigue testing equipment for a rotor shaft, which comprises a base, a rotary driving module, a loading module, a dynamic balance module, a crack monitoring module and an adjusting module, and is characterized in that the rotary driving module drives the rotor shaft to rotate through a belt transmission assembly; the loading module adopts a lever type force reversing mechanism to realize accurate bending moment loading; the dynamic balance module automatically counteracts eccentric vibration through a free disc and a symmetrical bearing seat; the crack monitoring module captures vibration abnormity and internal crack initiation in real time; and the adjusting module is automatically adapted to different shaft lengths by driving a threaded screw rod through a motor. Anti-slip lines are arranged on the inner sides of the clamps at the two ends to ensure stable clamping; the levers are symmetrically arranged and matched with the locking nuts, so that switching of translation force or bending force applied by the levers is facilitated, the equipment realizes high-precision and full-period fatigue test, and the device is suitable for reliability evaluation of key rotor parts of aero-engines and steam turbines.

The utility model relates to the technical field of steel bar wire machining, and discloses a portable steel bar bending device which comprises a support, a hook reference part and a bending force application part. Two groups of hook reference parts are arranged at one end of the bracket, are parallel to each other and are arranged at intervals, and the two groups of hook reference parts are used for being hooked on reference steel bars and are rotatably arranged around the reference steel bars; the bending force application part is located in the area between the two sets of hook reference parts and arranged on the support, and the bending force application part is used for applying force to the target reinforcing steel bar when rotating around the reference reinforcing steel bar so that the target reinforcing steel bar can be bent at the preset position. The whole structure is simple, portable and capable of being hooked on a longitudinal bar anytime and anywhere and then directly bending a constructional steel bar, the accuracy and the matching degree of a rectangle formed by the steel bar can be higher, the structural requirement is met, and the construction quality and the construction efficiency are improved.

The invention discloses a metal part physical performance detection device, and relates to the technical field of metal part detection, the metal part physical performance detection device comprises a workbench, the top surface of the workbench is slidably provided with two groups of moving assemblies, the opposite surfaces of the moving assemblies are fixedly provided with a group of bending assemblies, and the two groups of bending assemblies are internally slidably provided with a group of clamping assemblies; the two bending assemblies are jointly provided with a hydraulic assembly and a liquid guide assembly, a transfer assembly is installed on the top face of the workbench, a detection assembly is fixedly installed at the rear end of the transfer assembly, and a fixed point assembly is fixedly installed at the front end of the transfer assembly. According to the device, hydraulic oil can be cyclically switched among different cavities, so that the clamping assembly is driven to move up and down along the arc-shaped guide rail, the strip-shaped metal part is subjected to controllable bending force, meanwhile, the bending test point can be flexibly adjusted through cooperation of the movable support and the fixed-point support, and diversity and adaptability of experimental working conditions are ensured.

A method is provided for determining a torque value of a torque applied by an electronic torque wrench that includes a handle, a square drive and a strain gauge. The method includes measuring an angular velocity and a normal acceleration of the handle as the handle is rotated relative to the square drive, and finding a length of a moment arm from the square drive to the handle based on the angular velocity and the normal acceleration. The method includes measuring a bending moment of a rotational force at the strain gauge that is located at a known distance from the handle, the bending moment measured as the rotational force is applied at the handle that produces the torque at the square drive. And the torque value is determined based on the bending moment, the length of the moment arm and the known distance.

The invention provides a method for improving the section profile of a cold rolling raw material, which comprises the optimization of a convexity target value of a finishing mill group, a CVC roll shifting amount and a rack roll bending force parameter, and specifically comprises the following steps: if a wave shape and / or a high point appears in the middle of strip steel, reducing the convexity target value; if the edge of the strip steel is warped and / or warped in a cat ear shape, the convexity target value is increased; if waves and / or high points appear in the middle of the strip steel, the CVC roll shifting amount is reduced; if the edge of the strip steel is warped and / or warped in a cat ear shape, the CVC roll shifting amount is increased; after the strip shape is straightened, the roll bending force of a floating rack in the finishing mill group is adjusted, and if a wave shape and / or a high point appears in the middle of the strip steel, the roll bending force is reduced; if the edge of the strip steel is warped and / or warped in a cat ear shape, the roll bending force is improved; and the roll gap deviation or the roll bending force of the midstream frame is adjusted according to the actual strip shape of the strip steel. Adjustment of the plate shape and the section wheel is considered, and control over the effective section contour of the strip steel is guaranteed.

The utility model provides an endoscope needle tube puncturing and suturing device. The endoscope needle tube puncturing and suturing device comprises a mounting shell, a needle tube assembly, a driving assembly and a suturing assembly. The control piece controls the driving piece to rotate relative to the mounting shell, and the driving piece drives the connecting piece to move relative to the mounting shell, so that the connecting piece drives the arc-shaped puncture needle tube to rotate relative to the mounting shell. The control piece directly drives the arc-shaped puncture needle tube to be opposite to the mounting shell through matching of the driving piece and the connecting piece. The influence of the length of the needle tube assembly and the elastic tube, the stress bending of the elastic tube and the friction between the needle tube assembly and the mounting shell on the puncture force borne by the arc-shaped puncture needle tube is small, that is, the acting force of the control piece is effectively converted into the puncture force of the arc-shaped puncture needle tube through the matching of the driving piece and the connecting piece; and the arc-shaped puncture needle tube has enough puncture force, so that the arc-shaped puncture needle tube can quickly penetrate through human tissues, and the suture efficiency and implementation reliability of the product are improved.

The application discloses an automatic welding device for welding thin-wall steel pipes and belongs to the technical field of steel pipe welding processing, which comprises two thin-wall steel pipe bodies, a supporting base, concentric adjusting structures arranged at the two ends of the supporting base, concentric limiting structures arranged on each of the concentric adjusting structures and in sliding fit with the concentric adjusting structures, a concentric detecting structure arranged on the supporting base and facing the welding positions of the two thin-wall steel pipe bodies, and an automatic welding structure arranged at the middle position of the supporting base and used for welding the two thin-wall steel pipe bodies. The automatic welding device can adjust the two thin-wall steel pipes to be in a concentric state, and when the two thin-wall steel pipes are adjusted to be concentric, the stress of the weld is uniformly distributed when the weld bears external force. After welding is completed, the stress at the weld can be uniformly dispersed in the whole welding area no matter whether the weld bears axial tension, pressure or bending force.

The invention belongs to the technical field of pipe bending machines, and particularly relates to adjustable pipe bending equipment which comprises an equipment platform. The clamping mechanism is used for clamping and fixing the steel pipe above the equipment platform, so that subsequent pipe bending operation is facilitated; the position adjusting mechanism is used for adjusting the pipe bending position of the steel pipe and comprises a sliding seat which is slidably connected to the upper end of the equipment platform in the horizontal direction, an adjusting lead screw is rotationally connected to the equipment platform, and the sliding seat is in threaded connection with the adjusting lead screw; the upper end of the equipment platform is fixedly connected with a first adjusting motor used for driving the adjusting lead screw. And the angle adjusting mechanism is used for adjusting the pipe bending angle of the steel pipe. According to the multi-stage pipe bending machine, the multi-stage pipe bending mechanism is arranged, bending force is applied to a steel pipe in a segmented mode through linkage of a hydraulic system, a gear and a rack, the circulation mode of bending, feeding and re-bending is achieved, and concentrated stress is dispersed to multiple stages.

The invention discloses a method for improving the same-plate difference of non-oriented silicon steel through multi-process coordinated regulation and control. The method comprises the following steps: cooperatively controlling the following key process parameters: 1) hot continuous rolling process control: plate shape target control; width control; configuring and grinding a roller; a roller changing period; (2) five-rack acid continuous rolling procedure control: roller configuration; grinding the roller; and roll bending force control is conducted, specifically, the roll bending force of working rolls of all the racks is set to be 320 + / -20 kN for the rack S1, 330 + / -20 kN for the rack S2, 330 + / -20 kN for the rack S3, 330 + / -20 kN for the rack S4 and 330 + / -20 kN for the rack S5, an automatic mode is adopted, and dynamic adjustment is conducted according to feedback of a real-time strip shape instrument. According to the method, key process parameters in the whole hot rolling and cold rolling process are accurately controlled, the synergistic effect is formed, the transverse thickness uniformity of the strip steel is fundamentally improved, and therefore the high-quality non-oriented silicon steel product with the extremely small same-plate difference is obtained.

The invention discloses a high-stability weighing sensor based on self-adaptive structure adjustment, relates to the technical field of weighing sensors, and aims to solve the technical problem that the sensor bears unbalance loading force due to the fact that the placement position of an object is deviated, and the high-stability weighing sensor comprises a fixed base and a resistance strain type weighing sensor fixedly installed at the top of the fixed base. An adjusting mechanism is arranged at the top of the fixed base, and a stabilizing mechanism is arranged at the top of the adjusting mechanism. According to the invention, the floating seat is connected with the bearing seat through the spherical universal joint, and when a weighing object is placed at the edge of the bearing seat and causes unbalance loading, the spherical universal joint can actively adjust the posture of the bearing seat through inclination, and the L-shaped elastic arm at the unbalance loading side is matched to generate tiny bending due to increased stress; in the force transmission process, the first arc thin connection section can deform through self elasticity, interference of transverse component force on the main elastic body is eliminated, and the problem that the sensor bears unbalance loading force due to the fact that the placing position of an object is deviated is solved.

The present application relates to the field of stamping equipment, especially to a kind of stamping integrated equipment and method of energy storage steel row, including rack, the top of the rack is fixedly connected with workbench, the top of the workbench is installed with bottom plate, the top of the bottom plate is installed with lower die plate, the rear side of the workbench is installed with fixed frame, the front end of the fixed frame is fixedly connected with hydraulic cylinder in upper portion, the bottom of the hydraulic cylinder is fixedly connected with mounting plate in telescopic end, the bottom of the mounting plate is installed with upper die plate by bolt, the bottom of the upper die plate is all penetrated and slidably connected with guide pillar, the bottom end of the guide pillar is all fixedly connected with middle pressure plate, ultrasonic vibration head is arranged in bending stage, and high-frequency vibration is transmitted to bending plate by vibration piece and hydraulic medium, high-frequency dynamic stress disturbance is applied to material while the mechanical bending force acts, can promote material internal dislocation movement and plastic flow, reduce local deformation resistance, to effectively reduce bending forming force.

A joint structure for a vehicle frame includes a first structural tube, a second structural tube, and a pin. The first structural tube has first and second panels opposing each other. The first structural tube has third and fourth panels opposing each other. The second structural tube extends through the first panel and the second panel. The second structural tube has fifth and six panels opposing each other. The pin is secured to the first structural tube. The pin extends through the third panel, to the fifth panel, through the fifth panel, to the sixth panel, through the sixth panel, to the fourth panel, and through the fourth panel such that the first structural tube, second structural tube, and pin are collectively operable to resist shear and bending forces between the first structural tube and the second structural tube.

A semiconductor device including one or more support structures for supporting a semiconductor-die stack having a region that overhangs a substrate. In an example embodiment, the support structures may be implemented using suitably shaped pieces of relatively thick round or ribbon wire attached to metal pads on the substrate. During the encapsulation operation, the one or more support structures may counteract a bending force applied to the semiconductor-die stack by a flow of the molding compound. At least some embodiments may beneficially be used, e.g., to enable high-yield fabrication of devices having sixteen or more stacked memory dies.

The invention discloses a raw material cutting device for colored stone metal tile production, and relates to the technical field of colored stone metal tiles. The raw material cutting device comprises a rack, a sliding frame is slidably connected to the rack, a hydraulic rod and a cutting knife are arranged on the rack, and the cutting knife is rotatably connected to the side, close to the hydraulic rod, of the rack through a rotating shaft; the end of a piston rod of the hydraulic rod is rotationally connected with the cutting knife, and a downward pressing assembly for applying downward bending force to the cut and separated part is arranged on the rack. Firstly, stable clamping is achieved through cooperation of the lifting frame and the sliding block, material displacement in the shearing process is avoided, and the cutting quality is ensured; secondly, the peak pressure of a hydraulic system is effectively reduced through a continuous sectional shearing mode, and the service life of equipment is prolonged; and moreover, the polishing plate removes burrs while cutting, so that the problems of edge warping and coating stripping in the traditional process are solved, the surface quality of the product is improved, and the cutting precision and efficiency of the colored stone metal tile are also remarkably improved.

The utility model discloses a billiard cue tip polishing groove and a tip trimmer, and belongs to the technical field of sports goods repairing tools. The grinding groove comprises a groove body and a grinding piece, the section of the groove body in the width direction is in an arc shape, the grinding piece covers the supporting face of the groove body, and the first side face of the groove body is connected with the first side edge of the adjacent grinding piece in a clamped mode. The two sides of the groove body are each provided with one first side face, after external bending force is removed, the abrasive disc can make close contact with the side faces of the groove body through the resilience force of the abrasive disc, and the problems that metal is incompatible with glue, the pasting yield is low, and the abrasive disc is prone to being damaged in the using process are solved. And the abrasive disc can be quickly mounted / replaced without using an adhesive, so that the mounting / replacing process is simplified.

A battery bending test system includes a fastening device having an inclined surface configured to hold a battery; a pressing device configured to press the battery to bend; and a load-bearing device configured to bear the fastening device, the load-bearing device having a reference surface for bearing the fastening device. A first angle Ø is formed between the inclined surface and the reference surface. The range of the first angle Ø is 0°<Ø<90°. The battery bending test system and method can precisely control the bending angle and bending morphology of the battery, and reasonably evaluate the safety performance of the battery when subjected to the bending force, thus meeting expectations of the safety test.

The invention relates to the technical field of medical instruments, and particularly discloses a force control bending and pressing method and device for a sensor probe and a production line. The method comprises the steps that the probe is inserted into an assembly hole of a sensor shell; a bending actuator is driven to apply bending force to the probe part protruding out of the assembly hole, and a first pressure value in the bending process is collected in real time; when the first pressure value reaches a preset first pressure threshold value, the bending actuator is controlled to stop; a pressing actuator is driven to apply pressing force to the probe part, and a second pressure value in the pressing process is collected in real time; when the second pressure value reaches a preset second pressure threshold value, the pressing actuator is controlled to stop, bending and pressing of the probe are completed, the bending and pressing method is matched with the corresponding bending and pressing device, the automatic bending, pressing and assembling process of the continuous blood glucose monitoring sensor probe is achieved, and the production yield and production efficiency of flexible sensors are improved.

The utility model relates to the technical field of steel bar bending, in particular to a steel bar bending machine which comprises a bending machine body. A manual bending device and an automatic bending device are installed above the bending machine, a limiting mechanism fixedly connected with the bending machine is arranged on one side of the automatic bending device, and a bending force application piece used for bending action is further installed above the automatic bending device. An automatic discharging mechanism used for facilitating discharging work is installed in the automatic bending equipment. When the automatic bending device is used, the automatic discharging mechanism is arranged in the automatic bending device, the sliding plate is driven to move through the air cylinder device, the sliding plate drives the connecting plate to move, the connecting plate drives the top plate to move upwards, the rubber plate above the top plate can vertically lift a bent reinforcing steel bar upwards, and a worker can directly pull out the reinforcing steel bar for discharging; and the action of lifting the reinforcing steel bar is not needed, so that the labor is saved.

An apparatus for gathering soil data along a trajectory comprises a crawler body that houses a processor that is configured with instructions for controlling the apparatus, memory coupled to the processor, and a GPS module and motor also coupled to the processor. The apparatus also includes a pair of continuous tracks coupled to the crawler body and rotatable through a coupling with the motor, wherein the continuous tracks include planar sections, one or more of the planar sections including a plurality of flexible smart sensors that are each configured to detect and store data concerning at least one property or condition of the soil when the apparatus moves over the soil along the trajectory. The flexible smart sensors are resilient when subjected to bending forces when the continuous tracks move along the soil.

The utility model relates to the technical field of plywood production, and discloses a plywood anti-bending structure which comprises a core plate, two arched plates are connected to the two sides of the interior of the core plate in a glued mode, connecting plates are connected to the bottom of the core plate in a glued mode, and steel carbon fiber plate layers are connected to the tops of the connecting plates in a glued mode. The top of the steel carbon fiber plate layer is connected with a thin plate in a gluing mode. According to the plywood anti-bending structure, the two arch-shaped plates are installed on the two sides of the interior of the core plate, the bending resistance can be improved through the special shapes of the arch-shaped plates, certain buffering force can be provided for the plywood when the plywood is subjected to bending force, the surface of the core plate is not prone to being directly stressed, and the service life of the plywood is prolonged. The outside protection is firmer through the thin plates and the connecting plates, and the surfaces of the rivets penetrate through the whole plywood in the circular grooves, so that when the whole plywood is subjected to external force, the situation that the plywood is separated due to the fact that the plywood is bonded through glue is avoided, and the anti-distortion capacity is reduced.

The application discloses a connecting structure for vibration test of belt-loaded products and a test system comprising the same, the connecting structure comprising an adjusting part connected with a transmission shaft, the adjusting part comprising at least one of a first adjusting part and a second adjusting part, the first adjusting part comprising an outer sleeve, a first flange and at least three groups of first adjusting members, the first flange having a connecting head arranged inside the outer sleeve, the first flange being connected with the transmission shaft, and the connecting head and the outer sleeve being provided with an adjusting gap in a radial direction; the number of the first adjusting members in each group is at least two, the first adjusting member comprising an elastic block, and the first adjusting member being connected with the outer sleeve and the connecting head through two connecting bolts respectively, and the second adjusting part being used for overcoming the axial expansion force of the transmission shaft. The connecting structure can offset the swing or swing of the transmission shaft, and the adjusting space for position recovery of the transmission shaft during swing is larger due to the adjusting gap, so that the bending force on the transmission shaft is reduced.

The application discloses an automatic control method for cutting edge wave defects of a cold continuous rolling steel coil, which comprises the following steps: first, the strip steel of the steel coil is divided into n sections according to the length direction of the steel coil with unit length as the position interval, and the temperature data of the n sections of the strip steel in the hot rolling process are respectively output to form a steel coil hot rolling temperature data set T; then, the total work roll bending force correction set value in the cold continuous rolling process is calculated according to the steel coil hot rolling temperature data set T, and the total work roll bending force correction set value is distributed to the work roll and the intermediate roll; finally, it is judged whether the bending force needs to be compensated in the continuous rolling process, and if the compensation is needed, the bending force compensation is performed; since the application can automatically compensate the bending force set value in the cold continuous rolling process to match the actual rolling force of the hot rolling steel coil, the problem of the cutting edge wave defects can be automatically solved in the whole process, and meanwhile, since no new device is added and only the cold rolling control method is improved, the cost is saved.

The application relates to a detection instrument for measuring the bending force of a large-size Litz wire and a detection method thereof, and belongs to the technical field of Litz wire detection. The detection instrument comprises a detection table, an automatic wire feeding device for driving the Litz wire to feed along the x-axis direction, a center shaft assembly arranged on the detection table and used for fixing the bending center position of the sample wire, a fixed clamping assembly arranged on one side of the center shaft assembly, a bending assembly arranged on the other side of the center shaft assembly, a wire cutting device arranged between the fixed clamping assembly and the center shaft assembly and used for cutting the Litz wire into a plurality of sample wires, a force detection device used for detecting the stress data of the sample wire in the bending process in real time, and a control processing system in signal connection with the bending assembly and the force detection device. The application replaces the traditional visual inspection or hand feeling test by accurately quantifying the soft bending force of the Litz wire, improves the reliability and stability of the detection, and improves the automation degree of the detection and reduces the labor intensity.