1360 results about "Wire breakage" patented technology

The invention relates to a high-strength complex-phase hot-rolled wire rod for a 2100MPa-grade stranded wire and a manufacturing method of the high-strength complex-phase hot-rolled wire rod, after a C-Si-Mn-Cr-Mo high-carbon component system is rolled and spun into a wire rod, the wire rod is subjected to online molten salt strong quenching isothermal treatment, so that the wire rod is firstly subjected to front-section molten salt treatment and is cooled at a cooling speed of greater than or equal to 33 DEG C / s, and enters a bainite phase region from an austenite state; the method comprises the following steps: firstly, carrying out first-stage molten salt treatment to promote transformation of austenite into bainite, then carrying out later-stage molten salt treatment to form a structure mainly comprising bainite, carrying out isothermal tempering on the structure, reserving part of untransformed retained austenite, and finally, carrying out roller way slow cooling to promote transformation of the untransformed retained austenite into martensite, and carrying out tempering, the microstructure of the hot-rolled wire rod comprises a complex-phase structure composed of tempered bainite and tempered martensite, the tensile strength of the hot-rolled wire rod can reach 1435-1485 MPa, the percentage reduction of area of the hot-rolled wire rod is 31%-36%, off-line heat treatment of follow-up machining is avoided, and the risk of wire breakage is reduced.

The invention relates to a hot-rolled wire rod for a 2100MPa-grade stranded wire and a manufacturing method thereof, after a high-carbon and high-silicon component system is rolled and spun into a wire rod, the wire rod is cooled at a cooling speed of more than or equal to 31 DEG C / s through online molten salt sorbite regulation and control treatment, and enters a sorbite phase region from an austenite state; the method comprises the following steps of: forming a structure mainly comprising a sorbite structure, performing isothermal tempering, promoting fusing of a part of sorbite lamellas, and finally performing roller way cover opening and slow cooling to prepare the hot-rolled wire rod of which the microscopic structure comprises a mixed structure consisting of tempered sorbite, tempered ferrite and fused sorbite, so that alloy components can be simplified, and the strong plasticity matching and the structure uniformity of the wire rod can be improved; the tensile strength is 1420-1470 MPa, the percentage reduction of area is 36%-41%, the composite material is used for the application field of manufacturing 2100 MPa grade stranded wires and the like, off-line heat treatment can be avoided, and the risk of wire breakage during downstream drawing and twisting is reduced.

The invention discloses a wind driven generator blade lightning conductor broken line point positioning method based on a radio frequency transformer, and relates to the field of wind driven generator blade lightning conductor broken line point positioning. A to-be-detected line is connected in series with the radio frequency transformer before being injected into traveling waves, and the change of traveling wave current is converted into the change of transformer output voltage; therefore, the output voltage of the radio frequency transformer is detected to judge the arrival time difference of the incident wave and the reflected wave, and then the breakpoint position is judged by multiplying the wave velocity by the time difference and dividing by 2. According to the wind driven generator blade lightning conductor breaking point positioning method based on the radio frequency transformer, the position of the lightning conductor breaking point can be efficiently, accurately, conveniently and flexibly detected at low cost, positioning measurement of disconnection of a multi-core wire part can be achieved, the specific positions of the breaking point and an abnormal point of the lightning conductor can be effectively determined, and the working efficiency is improved. After the positions of the broken line point and the abnormal point are determined, specific positions are repaired in a targeted manner, so that the cost for replacing the lightning conductor is saved.

The invention discloses a motor coil winding device and method, and belongs to the technical field of motor manufacturing, the motor coil winding device comprises a winding machine body, the upper surface of the winding machine body is fixedly connected with a pair of supporting plates, and the outer surfaces of the supporting plates are provided with self-adaptive floating wire protection assemblies; a wire dynamic regulation and control assembly is installed on the upper surface of the winding machine body, a fixing piece is installed on the upper surface of the winding machine body, and a winding displacement quality sensing assembly is installed on the portion, close to the fixing piece, of the upper surface of the winding machine body. The magnetorheological fluid in the magnetorheological fluid damper rapidly changes the rheological property under the action of a real-time control magnetic field, vibration transmission is effectively restrained, the phenomenon that a wire is broken due to too large tension is avoided, when it is monitored that the tension is too small, the magnetic powder brake increases the resisting moment and slows down the rotating speed of the pay-off reel to improve the tension, and if the tension is too large, the magnetic powder brake stops working. The magnetic powder brake reduces the resistance moment and accelerates the pay-off, and ensures that the wire is always at the optimal traction angle.

The invention relates to a hot-rolled wire rod for a 1960MPa-grade stranded wire and a manufacturing method of the hot-rolled wire rod, after high-carbon components of C-Si-Mn-Cr-B are rolled and spun into a wire rod, the wire rod is subjected to rapid online molten salt isothermal treatment, and the wire rod is subjected to front-section molten salt treatment, so that the wire rod is cooled at the cooling speed of more than or equal to 32 DEG C / s and enters a sorbite phase region from an austenite state; the steel wire rod is subjected to rear-section molten salt treatment, the molten salt temperature is reduced, unconverted retained austenite is promoted to be converted into the sorbite structure, meanwhile, isothermal tempering of the structure and fusing of a part of sorbite lamellas are promoted, and finally slow cooling is conducted through a roller way; the microstructure of the hot-rolled wire rod comprises a mixed structure composed of tempered sorbite, ferrite and fused sorbite, the tensile strength is 1305-1355 MPa, the percentage reduction of area is 37%-42%, and the hot-rolled wire rod is used for being used as base metal to manufacture high-strength stranded wires and other application fields and is beneficial to reducing the risk of wire breakage.

The application relates to the technical field of stone cutting equipment, in particular to high-efficiency stone wire saw cutting equipment, which is characterized by comprising a mounting frame, a lifting frame, a lifting driving mechanism, a stone clamping and placing mechanism and a wire saw cutting mechanism, the lifting frame is arranged in the mounting frame and is slidably connected to the mounting frame through a first sliding assembly, the lifting driving mechanism is arranged on the mounting frame and is used for driving the lifting frame to lift, the stone clamping and placing mechanism is arranged below the lifting frame and is used for clamping and placing a stone body, and the wire saw cutting mechanism is arranged on the lifting frame. The application can effectively reduce the wire breaking probability of the cutting wire, the threading overhauling after wire breaking is relatively convenient, and the consistency of the tension among the multiple cutting wires can be effectively ensured.

The present invention relates to the technical field of tungsten alloy materials, and in particular to a tungsten alloy wire, and a preparation method therefor and a use thereof. The tungsten alloy is composed of the following elements in percentage by mass: 0.45-0.9 wt% of L, 0.05-0.2 wt% of oxygen, and the balance being tungsten and inevitable impurities, wherein L is one or more of lanthanum, cerium, praseodymium, neodymium, gadolinium, and samarium, the wire has a wire diameter of 20-60 μm, in the wire, L or compounds of L exist in the axial direction of the wire in a linear shape, and the average width D of L or the compounds of L in the radial direction is less than or equal to 5 nm. The element L is controlled to be doped between the tungsten base materials in a linear shape, and the average width D of L in the radial direction to be less than or equal to 5 nm, so that cracks and wire breakage caused by second-phase particles in the subsequent pressure machining process are greatly reduced, thereby guaranteeing the mechanical strength of the tungsten alloy wire, and thus the wire has a tensile strength of 5000 MPa or above under a wire diameter of 20-60 μm, and the machining performance of the tungsten alloy wire is enhanced.

The invention discloses a broken line repairing circuit and method, a display panel and display equipment, and relates to the technical field of display, and the circuit comprises a gate line array, a gate driving module, a broken line detection module and a compensation module, when the gate driving modules arranged on the left side and the right side of the gate line array respectively output gate signals to the gate signal lines in the corresponding rows line by line according to a preset row scanning sequence; the method comprises the following steps: monitoring an input current signal of each gate signal line when a gate driving module outputs a gate signal line by line through a disconnection detection module, and generating a disconnection data signal comprising a rising edge detection current and a disconnection gate line according to the input current signal; through a compensation module, a broken line data signal sent by a broken line detection module is received, a gate compensation digital signal is generated according to a rising edge detection current, and a broken gate line is repaired according to the gate compensation digital signal, so that the broken gate signal line is repaired to improve the product yield of a display panel.

The invention relates to the technical field of metal wire processing, discloses copper alloy fine wire drawing equipment, and solves the problems that in the multi-stage drawing process of copper wire drawing equipment, due to the fact that the initial diameter of a raw material copper wire is uneven and the variation of unit length increase is unstable due to wire diameter fluctuation in the drawing process, the tension of the copper wire on a guide wheel is frequently changed, and the drawing quality is influenced. Therefore, the tension thread breaking phenomenon is easily caused. The first deformation structure is located between the outer guide wheel and the assembly disc, in the copper wire drawing process, adaptive deformation can be generated according to wire diameter changes, the outer guide wheel is pushed through reverse elastic force of the elastic recovery trend of the first deformation structure, and the fluctuation variation of increase of the unit length of the copper wire is self-adapted.

The invention provides a method for testing breakage of a film covered wire. The method comprises the following steps of: 1, respectively sampling a section of a wire with the length of 1m and a section of a wire with the length of 10m; step 2, respectively measuring weight values and direct-current resistance values of the 1-meter sampling line and the 10-meter sampling line to obtain a weight value G1 of the 1-meter sampling line, a direct-current resistance value R1 of the 1-meter sampling line, a weight value G2 of the 10-meter sampling line and a direct-current resistance value R2 of the 10-meter sampling line; step 3, calculating the direct current resistance change rate according to a formula delta R = {R2 / [R1 * (G2 / G1)]-1} * 100%; 4, when the direct-current resistance change rate delta R is smaller than a set percentage, the wire is judged to be qualified; and when the direct-current resistance change rate delta R is greater than or equal to a set percentage, judging that the wire has the wire breakage defect. According to the invention, the resistance abnormity caused by broken line and non-broken line factors can be effectively distinguished, and the misjudgment rate is reduced; and meanwhile, quantitative line breakage degree evaluation can be realized, and a technical basis is provided for formulating an industrial line breakage detection standard.

The utility model discloses a rope winding machine, and aims to provide a rope processing mechanism of the rope winding machine, which can keep a rope tight in a rope pulling process, has a good winding effect and can prevent the rope from being knotted and broken at the same time, and is characterized in that the rope penetrates through a rope routing device and a rope pulling device and is fixedly wound in a rope winding device; meanwhile, the thread rope can be kept tight through the thread pulling device, so that the thread rope is kept to move at a constant speed in the machining process, the effect of wound finished products is improved, a knotting detection function and a thread breakage detection function are arranged in the thread routing device, the situation that the thread rope is knotted and broken in the thread routing process, and consequently the yield of the finished products is affected is prevented, and the production efficiency is improved. Furthermore, a meter counting wheel is arranged in the wiring device, so that the length of the processed thread rope can be clearly and intuitively detected, the man-machine interaction effect is good, and the automatic thread rope winding machine is suitable for the technical field of automatic thread rope winding machines.

The utility model relates to the technical field of bonding wire production, in particular to a wire breakage prevention traction device for bonding wire drawing equipment. The wire feeding device is reasonable in structural design and mainly comprises the base, the vertical plate, the guide sliding groove, the transverse push rod, the movable blocks and the guide sliding plate, the transverse push rod is used for driving the movable blocks and the guide sliding plate to linearly move in the length direction of the guide sliding groove, and the two movable blocks on the outermost side are provided with the wire feeding block and the wire discharging block respectively. In this way, the traction position of the wire feeding block can be correspondingly adjusted according to the position of a bonding thick wire on the discharging roll, and the position of the wire discharging block can be correspondingly adjusted according to the position of drawing equipment. And meanwhile, the positions of the wire guide blocks can be adjusted according to the bottom end positions of the wire block and the wire outlet block, the rotating directions of the wire guide blocks are correspondingly adjusted, the traction resistance is reduced, and the wire breaking prevention traction effect is good.

The invention relates to a high-strength complex-phase hot-rolled wire rod for a 2330MPa-grade stranded wire and a manufacturing method of the high-strength complex-phase hot-rolled wire rod. After a Mo-containing high-carbon component is rolled and spun into a wire rod, the wire rod is subjected to online fused salt mixed quenching toughening treatment, so that the wire rod is subjected to front-section fused salt treatment and is rapidly cooled, and enters a bainite and sorbite mixed phase region from an austenite state; the method comprises the following steps: firstly, carrying out heat treatment on residual austenite to form a structure mainly comprising bainite and sorbite, then carrying out later-section molten salt treatment, increasing the temperature of molten salt, promoting decomposition and conversion of unconverted residual austenite into sorbite, carrying out isothermal tempering, and finally, carrying out roller way slow cooling to prepare a hot-rolled wire rod of which the microscopic structure comprises a complex-phase structure consisting of tempered bainite and tempered sorbite, according to the hot-rolled steel wire rod, complex-phase structure regulation and control and online toughening can be achieved, the production efficiency is considered, the tensile strength of the hot-rolled steel wire rod can reach 1563-1613 MPa, the percentage reduction of area can reach 29%-34%, offline heat treatment is not needed when the ultrahigh-strength stranded wire is produced, and the wire breaking risk is reduced.

The invention relates to the technical field of inductor production, and particularly discloses a coil forming processing technology for manufacturing an inductor, a forming processing device is adopted for processing in the following steps: the forming processing device comprises a wrapping post, a connecting seat, a rotary drum, a rotary lifting assembly and a first linear driving piece; the processing technology comprises the following steps: a wire feeding step: forwards conveying a wire harness; a wire clamping step: enabling the end part of the wire harness to be clamped and fixed on the connecting seat; a winding step: inserting the winding post into the connecting seat, and controlling the winding post and the connecting seat to synchronously rotate and synchronously lift to obtain a coil; a wire breaking step: cutting off the joint of the coil and the wire harness; a transferring step: moving the wrapping post into the rotary drum to separate the coil from the wrapping post; and a welding step: transferring the coil into a welding mechanism for welding. The high-precision rotary lifting assembly is used for winding, the air cylinder is used for rapid ejection and demolding, and the demolding efficiency is greatly improved while the winding quality is guaranteed.

The invention relates to the technical field of fault prediction and health management, and discloses a membrane envelope wire breakage detection method, which comprises the following steps: constructing a static impedance reference model containing viscoelastic characteristics, and extracting a time constant representing the physical relaxation velocity of an insulating material; performing phase correction operation on the instruction motion attitude coordinate by using the instant motion velocity vector and the time constant to obtain an equivalent physical attitude coordinate; and querying theoretical electrical characteristic parameters in the static impedance reference model by using the equivalent physical attitude coordinates, and carrying out difference calculation on the theoretical electrical characteristic parameters and the measured values to calculate a residual error characteristic sequence so as to evaluate the health factors. And due to measurement reference deviation caused by viscoelasticity lag of the high polymer material, accurate capture and trend prediction of weak early damage signals are realized.

The utility model discloses a fatigue testing machine for an automobile tire steel cord. The fatigue testing machine comprises a rack, and a controller, a front winding clamp, a middle winding clamp, a rear winding clamp, a motor eccentric wheel mechanism, a force application mechanism and a broken wire sensing device which are arranged on the rack, the front winding clamp, the middle winding clamp and the rear winding clamp are used for clamping and fixing a to-be-tested steel cord; the motor eccentric wheel mechanism can drive the middle winding clamp to move left and right in a reciprocating mode, and the motor eccentric wheel mechanism is electrically connected to the controller; the force applying mechanism is used for applying gravity to the steel cord to be tested; the broken wire sensing device is used for judging whether the to-be-detected steel cord is broken or not in the detection process; the broken wire sensing device is electrically connected to the controller; a motor eccentric wheel mechanism is matched to drive the middle winding clamp to reciprocate left and right to simulate repeated bending of the steel wire; therefore, repeated bending tests can be carried out on the steel cords with different specifications under the condition that the steel cords bear the tensile force.

The utility model discloses a solar cell, which comprises a semiconductor substrate and an electrode structure arranged on the semiconductor substrate, and the electrode structure comprises a plurality of main grid lines and a plurality of fine grid lines. The main grid lines are arranged at intervals in the first direction. Each main grid line comprises a main rod extending in the second direction and a plurality of connecting branches arranged along the main rod at intervals. The fine grid lines are arranged at intervals in the second direction. The fine grid lines extend in the first direction and are provided with a plurality of fractures at intervals in the extending direction. Wherein the main grid lines intersect with the thin grid lines at the fractures at the connecting branches, the electrode structure further comprises widened small short lines located at the intersection positions, the main grid lines and the thin grid lines are electrically connected through the connecting branches and the widened small short lines, and the problem of line breakage during sintering or welding is avoided. In addition, the utility model also discloses a solar cell module.

The invention discloses a metal wire coating conveying mechanism, and relates to the technical field of metal wire coating, the metal wire coating conveying mechanism comprises a wire collecting working area and a coating working area, a wire collecting rolling shaft is arranged at the lower end of the interior of the wire collecting working area, and a wire collecting motor is arranged on one side of the exterior of the wire collecting working area; the power output end of the wire collecting motor is connected with the wire collecting rolling shaft through a magnetic fluid sealing transmission assembly, a guide pulley assembly and a third pulley support are arranged at the upper end and the lower end in the wire collecting working area correspondingly, and a first pulley support and a second pulley support are arranged at the upper end and the lower end in the film coating working area correspondingly. According to the mechanism for completing wire winding and unwinding through the same rolling shaft, wire winding and wire unwinding can be achieved at the same time through rotation of the same rolling shaft in the same direction, the equipment structure is greatly simplified, wire winding and unwinding act on the same rolling shaft, it can be guaranteed that the wire winding and unwinding tension of metal wires is stable, wire breaking or loosening is avoided, and film coating is more uniform. And the metal wires can be replaced more conveniently, and the production efficiency is improved.

The invention relates to the technical field of advanced manufacturing and artificial intelligence, and discloses a reinforcement learning-based superfine tungsten filament drawing process intelligent optimization method, which comprises the following steps of: constructing a digital twinborn model in a tungsten filament drawing process; based on the model, a hierarchical reinforcement learning framework is adopted for strategy training, and the framework comprises a high-level strategy network responsible for inter-pass macro target planning and a low-level strategy network responsible for real-time fine regulation and control in the pass to achieve the macro target. Before the low-layer strategy network outputs the control action, the disconnection risk of the action is predicted, and the high-risk action is corrected or denied, so that safe exploration and optimization are realized. Through combination of digital twinning, hierarchical decision and safety constraint, intelligent control over the whole flow of the superfine tungsten wire drawing process is achieved, and the yield, production efficiency and quality consistency of superfine tungsten wires of 30 microns and below can be remarkably improved.

The utility model relates to the technical field of fishing, in particular to a knotless connector for a line group, which comprises a connecting sleeve, a rotating head at the bottom end of a first winding piece is sleeved at the inner upper end of the connecting sleeve, and a rotating head at the top end of a second winding piece and a hanging ring conveniently matched with other sub-lines can be sleeved at the lower end of the connecting sleeve according to requirements. The first winding piece and the second winding piece are provided with wire protection grooves suitable for medium and large wires. The knotless connector of the device is suitable for connecting a main line and a sub-line with the device, is also suitable for connecting the main line and a PE knot with the device, and is also convenient for connecting the main line with other fishing gear accessories in a knotless manner, and the arranged main line is not knotted, so that the tension value of the device can be obviously improved, and the possibility that the main line is broken is reduced; the whole device improves the tension value of the line set, reduces the chance that the line set is broken due to the fact that the tension value is reduced due to knotting, and further improves fishing pleasure.

The utility model relates to the technical field of bonding wire production, in particular to a wire expanding and drawing device for bonding wire production. The drawing device is reasonable in structural design and mainly comprises the drawing box, the drawing motor, the rotating shaft, the drawing expansion roller, the expansion drawing spiral grooves, the connecting convex rings, the anti-falling rings and the centralizing blocks, the drawing motor drives the drawing expansion roller to rotate through the rotating shaft, the drawing expansion roller is provided with the two expansion drawing spiral grooves, and the two expansion drawing spiral grooves are connected through the connecting convex rings. The bonding wire is subjected to wire expanding and drawing through the wire expanding and drawing spiral groove, the connecting protruding ring, the anti-disengaging ring and the centralizing block jointly form a centralizing system, it can be guaranteed that the drawing and wire expanding roller keeps stable in the rotating process, and the situation that the wire is broken due to shaking of the drawing and wire expanding roller is avoided.

The utility model relates to the technical field of wire core twisting, in particular to a wire twisting device convenient for detecting wire core disconnection, which comprises a wire twisting disc, a plurality of pay-off racks are arranged on the surface of the wire twisting disc, each pay-off rack is provided with a wire barrel, the wire twisting disc is further provided with a wire core threading pipe penetrating through the circle center of the wire twisting disc, one end of the wire core threading pipe is provided with a wire collecting disc, and the other end of the wire core threading pipe is provided with a wire winding disc. A plurality of wire penetrating holes for metal wires to penetrate in and out are formed in the wire collecting disc, a wire breakage detection device for detecting breakage of the metal wires is further arranged on the wire collecting disc, the wire twisting disc is rotationally arranged on the base, a twisting seat is arranged on the base, a twisting hole for twisting the metal wires is formed in the top of the twisting seat, and the wire collecting disc is arranged on the base. According to the utility model, the broken wire detection device is arranged on the wire twisting disc, so that when any metal wire twisted on a wire core is broken, the broken wire can be immediately detected, and uneven wire twisting or other quality problems caused by breakage of the metal wire are avoided, thereby improving the product quality and the production efficiency.

The invention relates to a copper wire multi-head wire drawing tension intelligent adjusting method and system, and the method comprises the steps: collecting wire drawing tension data at each wire drawing pass in real time, synchronously obtaining linear speed, motor rotating speed and wire diameter change parameters, carrying out the fusion analysis of the data, and constructing a multi-head wire drawing tension distribution model; calculating a target tension interval of each wire drawing head according to the specification of the copper wire and preset wire drawing process parameters, generating a tension adjusting instruction when the actual tension deviates from the target tension interval, adjusting the rotating speed of a driving motor of the corresponding wire drawing head or the wire drawing speed, and feeding back an adjusting result to a control system to form closed-loop control. The system comprises a multi-point tension acquisition module, an operation parameter acquisition module, a data processing and analysis module, an intelligent decision control module, an execution control module and a feedback control module. Intelligent and stable adjustment of tension in the multi-head wire drawing process is achieved, the consistency of the wire drawing quality is improved, the wire breaking risk is reduced, and the device is suitable for continuous and automatic wire drawing production scenes.

A silicon wafer processing device (100) and system (200). The silicon wafer processing device comprises a plurality of main rollers (10) arranged in sequence and cutting wires (20) wound around the periphery of the main rollers (10), wherein the cutting wires (20) form a wire mesh between the main rollers (10), and the wire mesh comprises a plurality of wiring areas arranged in sequence in the axial direction of the main rollers (10); the main rollers (10) are each provided with a plurality of wire grooves for winding the cutting wires (20); the plurality of wiring areas comprise a first area (a1) and a second area (a2), with the wiring spacing of the cutting wires (20) in the second area (a2) being greater than that of the cutting wires (20) in the first area (a1); thus, the increase in a wire bow and the limitation of a cutting force caused by lateral force concentration are reduced, and for the cutting wires (20) at the head of the first area (a1), the problems of wire overlapping and wire breakage between same and the adjacent cutting wires (20) can be effectively avoided.

The invention discloses a multi-wire cutting machine diamond wire active breakage prevention method and system. The method comprises the following steps that a detection assembly used for collecting various feature data of a diamond wire is installed on a to-be-detected multi-wire cutting machine; obtaining multiple groups of historical multi-class feature data, and performing fusion processing on the multiple groups of historical multi-class feature data to obtain multiple groups of fused historical feature vector sequences; constructing a mixed deep learning model, and training the mixed deep learning model by using the plurality of groups of historical feature vector sequences to obtain a prediction model; acquiring a feature vector sequence of the to-be-detected multi-wire cutting machine in real time and inputting the feature vector sequence into the prediction model; and taking corresponding active prevention measures based on the prediction result and the judgment threshold. According to the method, the tension, the vibration, the temperature, the speed and the arch height of the diamond wire are comprehensively considered, the running state of the diamond wire can be reflected more comprehensively and accurately, the accuracy of wire breakage risk prediction is improved, and corresponding active prevention measures can be taken after the wire breakage risk is predicted.

The utility model discloses a copper-clad steel continuous casting production line and a steel wire conveying device used for the copper-clad steel continuous casting production line, and the device comprises a front end pushing mechanism which is arranged in front of the inlet end of a continuous casting furnace and is constructed to be capable of continuously pulling a machined steel wire to move in the continuous casting advancing direction in the mode of applying first radial acting force to the machined steel wire; the rear end pull-out mechanism is arranged behind the outlet end of the continuous casting furnace and can pull the machined steel wire to move in the continuous casting advancing direction in a stepping mode in the mode that second radial acting force is applied to the machined steel wire coated with the copper layer; wherein the first radial acting force is smaller than 80% of the second radial acting force all the time, and therefore the whole machined steel wire in the copper-clad steel continuous casting production line basically moves in the continuous casting advancing direction in a stepping mode synchronous with stepping traction. According to the solution provided by the invention, the risk that the steel wire is easy to break and crack is relieved and even eliminated, and the production yield and efficiency of continuous casting of the copper-clad steel are improved.

The invention relates to the technical field of tungsten filament drawing processing, and provides a fuel gas heating ten-die wire drawing machine and a high-performance tungsten filament drawing process. The fuel gas heating ten-mold wire drawing machine comprises a rack and an electric controller, wherein a magnetic damping pay-off reel, a guide wheel, a natural gas fire grate, a wire drawing mold frame, a cone pulley and a servo wire take-up reel are sequentially arranged on the rack along a wire machining path; the natural gas fire grate comprises ten heating units, an electric proportional valve is arranged on the rack, and the electric proportional valve is in signal connection with an electric controller; a temperature measuring sensor is arranged above the heating unit, the temperature measuring sensor is in signal connection with the electrical controller, and the temperature measuring sensor is used for monitoring the temperature of the wire rod in real time; the high-performance tungsten filament drawing process comprises the following steps: S1, rough drawing; s2, medium drawing; s3, fine drawing; the step S1 is implemented by adopting the fuel gas heating ten-die wire drawing machine; through collaborative innovation of equipment and a process, the effects of improving the strength of the tungsten filament, improving the performance of the tungsten filament and reducing the wire breakage rate are achieved.

The utility model belongs to the technical field of winding machines, and particularly relates to a winding machine convenient for wire harness production and processing, which comprises a base, a pay-off device is mounted at the top of the base, a fixing frame is fixedly connected to the top of the base, a driver is mounted at the top of the fixing frame, and the output end of the driver penetrates through the side wall of the fixing frame. The output end of the driver is fixedly connected with a rotating shaft, the middle of the rotating shaft is fixedly connected with a winding roller, the middle of the rotating shaft is rotationally connected with two sleeves, the two sleeves are arranged at the two ends of the winding roller, the middles of the sleeves are fixedly connected with fixing rods, the middles of the sleeves are fixedly connected with springs, and the springs are arranged outside the fixing rods. By means of the structure, the wire rod can be kept stable in the winding process, the problem that the wire rod is loosened or excessively tightened in the winding process is solved, and breakage or damage of the wire rod in the winding process is effectively reduced.

The utility model discloses a dotted line dotting and breaking device for marking construction, which belongs to the technical field of dotted line dotting and breaking of marking, and is characterized in that a plurality of mounting hole sites are formed in the end surfaces of an adjusting frame and a mounting rack, and bolts are inserted into the mounting hole sites to fix the adjusting frame and the mounting rack; the adjusting frame moves along the mounting frame to adjust the extension length of the adjusting frame; bullet-proof glass is arranged in a frame body of the adjusting frame, scales are arranged on the bullet-proof glass, a clamping hoop used for fixing the sand blasting head is arranged at the bottom of the adjusting frame, and a fastening bolt is arranged on the clamping hoop and used for fastening the sand blasting head. The device improves flexibility and adaptability, and meets various marking construction requirements. The operation accuracy is enhanced, and the bullet-proof glass scales ensure that the distance is correct. And the flexible frame and the sand blasting head are quickly adjusted, so that the preparation time is shortened. The bullet-proof glass is breakage-proof, the flow is accurately controlled by the valve, and the quality is guaranteed. The design is portable and stable, and the lifting operation of the moving wheels and the handrail frame is convenient.

The invention relates to a wire breakage prevention device and method in a single-pass mode. The device comprises a printing assembly, and the printing assembly comprises an assembly bottom plate; the assembly bottom plate is arranged above the printing platform; the first spray head group is arranged on the assembly bottom plate and is used for carrying out ink-jet printing on the printing medium on the printing platform; the nozzle group guide rail is arranged on the assembly bottom plate, one end of the nozzle group guide rail is located on a printing station on the printing platform, and the other end of the nozzle group guide rail is far away from the printing platform and extends to a cleaning and moisturizing station; the nozzle group cleaning and moisturizing mechanism is arranged at one end, away from the printing platform, of the nozzle group guide rail; the second spray head group is arranged in the spray head group cleaning and moisturizing mechanism and is in a standby state; and the first nozzle group and the second nozzle group move along the nozzle group guide rail to realize position exchange and then are fixed at a printing station through a push rod. According to the invention, line breakage can be effectively prevented on the premise of meeting high-speed printing.