5841 results about "Copper wire" patented technology

The invention provides a low-voltage cable, and relates to the technical field of cables, the low-voltage cable comprises a conductor layer, a support layer, a shielding layer and a sheath layer, the conductor layer is composed of multiple strands of fractal stranded conductors, and each fractal stranded conductor comprises an inner-layer superfine silver-plated copper wire, a middle-layer copper-clad aluminum wire and an outer-layer nickel-plated copper alloy wire; the supporting layer wraps the conductor layer and comprises an inner supporting layer, a dynamic framework layer and an outer restraint layer, the inner supporting layer is an obliquely wound aramid fiber woven belt, the dynamic framework layer is formed by alternately arranging shape memory polymers and carbon fiber composite belts, and the outer restraint layer is a spirally wound silica gel-glass fiber composite rope. The shielding layer comprises a tinned copper wire woven mesh; the sheath layer is a thermoplastic polyurethane matrix, a microcapsule self-repairing agent is dispersed in the thermoplastic polyurethane matrix, a microcapsule comprises a siloxane prepolymer, and the thermoplastic polyurethane matrix further comprises graphene nanosheets. Through collaborative design of the fractal stranded conductor layer, the dynamic skeleton support layer, the shielding layer and the self-repairing sheath, comprehensive improvement of cable performance is realized.

The invention relates to the technical field of copper wire manufacturing control, in particular to a copper wire multi-pass rolling and annealing cooperative control method and system based on an intelligent network, and the method comprises the steps: setting a process control node according to an industrial control process, building a cooperative communication network based on the process control node, and collecting a multi-mode industrial control signal; setting a data transmission processing protocol, establishing an industrial control sensing platform, integrating multi-mode industrial control signals, and converting the multi-mode industrial control signals according to process positions to generate process operation parameters; analyzing non-linear correlation between process steps, and calculating process adjustment parameters by combining the copper wire performance indexes; according to the data transmission processing protocol, the process operation parameters are transmitted to a cooperative control center and compared with the process adjustment parameters for analysis, and a parameter cooperative control instruction is generated; and the parameter cooperative control instruction is fed back to the rolling control node and the annealing temperature control node based on the cooperative communication network for parameter correction. According to the invention, the problems of low process synergy efficiency and insufficient signal processing capability in copper wire manufacturing are effectively solved.

The invention provides a copper wire stretching quality detection method and system for elongation analysis. The method comprises the following steps: obtaining production process record data of a copper wire sample meeting an elongation threshold; on the basis of a preset production process, traversing the production process record data for comparison to obtain a production process deviation parameter; according to the deviation parameters, extracting record data with the deviation parameters smaller than or equal to a threshold value for centralized value evaluation to obtain a production process reference space; when the production process monitoring data of the to-be-detected copper wire falls into the reference space, judging that the copper wire is qualified; when the monitoring data does not fall into the reference space, extracting a single-attribute deviation matrix; and retrieving an elongation threshold value of an abnormal sample meeting the deviation matrix, and executing targeted tensile quality actual measurement. By establishing a production process reference space, accurate prediction and targeted detection of the drawing quality of the copper wire are realized, and the omission ratio is effectively reduced.

The invention relates to the technical field of current measurement, and discloses an open-close type current transformer which comprises a lower shell, one side of the top of the lower shell is rotatably connected with an upper shell, semicircular iron cores are embedded in the lower shell and the upper shell, a copper wire is wound on the iron core located in the lower shell, two ends of the copper wire are fixedly connected with butt joints, and the butt joints are fixedly connected with the upper shell. The butt joint is embedded in the outer wall of one side of the lower shell, the side, close to the butt joint, of the lower shell is rotationally connected with a mounting plate, butt joint rods are fixedly connected to the sides, close to the butt joint, of the two ends of the mounting plate, two limiting holes are formed in the mounting plate, and two limiting seats are fixedly connected to the side, close to the mounting plate, of the lower shell. Each limiting seat is aligned with the corresponding limiting hole in the same side, mounting grooves are formed in the tops and the bottoms of the limiting seats, limiting blocks are slidably connected into the mounting grooves, and the problem that due to the fact that the positive electrode and the negative electrode are reversely connected, wiring copper wires need to be detached, and then winding work needs to be conducted by replacing the positions, and operation is troublesome can be solved.

The invention relates to the technical field of silica gel cables, and discloses a silica gel cable with high reliability and high flexibility and a process thereof, and the silica gel cable comprises a conductor layer which is formed by hierarchically twisting a plurality of tinned copper wires with the diameter of 0.05-0.10 mm, and the twisting helical angle gradually changes from 25 degrees in the inner layer to 55 degrees in the outer layer; the insulating layer coats the conductor layer and comprises a silica gel material, a hydrogen-containing silicone oil cross-linking agent and a plasticizer, microcapsules with the particle size of 20-50 microns are dispersed in the silica gel material, a shell layer of each microcapsule is polyurethane, and a core layer of each microcapsule is a siloxane repairing agent containing a platinum catalyst; and a sheath layer. A hydrogen-containing silicone oil cross-linking agent in the insulating layer enables molecular chains to be cross-linked to form a net structure, the physical and chemical stability is enhanced, microcapsules are matched to endow a self-repairing function, a repairing agent is released when the cable is damaged, the self-repairing performance of the insulating layer is further guaranteed, damage is filled through a cross-linking reaction, insulation is recovered, the reliability of the cable is remarkably improved, and the service life of the cable is remarkably prolonged.

The invention discloses a high-strength cable for an industrial robot and a preparation process of the high-strength cable. The preparation process comprises the following steps: selecting a high-strength conductor material, performing multi-pass wire drawing processing on the conductor material, and twisting a plurality of fine copper wires according to a preset pitch and direction to form a conductor core; fluoroplastic is selected as a first layer of insulating material to coat the conductor core to form a first insulating layer, and modified thermoplastic elastomer particles coat the first insulating layer to form a second insulating layer; wrapping a wrapping material outside the second insulating layer by using a wrapping machine to form a wrapping layer; a sheath material extruder is provided to wrap the wrapping layer to form an outer sheath, and then cutting is carried out to obtain the high-strength cable. According to the process, material selection and structural design are innovatively combined, the double-layer insulation structure provides excellent high-temperature resistance and electrical insulation performance, friction between the inner layer and the outer sheath is effectively reduced due to application of the wrapping layer, the service life of the cable is prolonged, and therefore the high-strength cable is prepared.

The invention discloses a wear-resistant tensile power cable and a preparation method thereof, and relates to the technical field of power cables, the wear-resistant tensile power cable comprises a wire core, the interior of the wire core is a stranded wire structure formed by stranding a plurality of copper wires, the exterior of the wire core is coated with a crosslinked polyethylene insulating tube, and a centering assembly is fixedly installed on the outer surface of the wire core. According to the wear-resistant tensile power cable and the preparation method thereof, the hemp rope is filled in the special-shaped pipe for centering and stabilizing the whole structure, the silica gel coating is filled in the special-shaped pipe, an inner layer centering structure is formed after the coating is shaped, and the cable particles easy to flow are filled between the inner side surface of the special-shaped pipe and the special-shaped pipe. The cable particles improve the overall stability of the cable, and at the same time, when the outer layer protection structure is broken by tensile force, the inner layer centering structure is not damaged by tensile force, thereby solving the problem that the tight fixed connection between the outer layer protection structure and the inner layer centering structure of the cable easily causes the overall cable to be broken by tensile force and causes serious accidents.

The invention discloses a copper wire bonding process for a silicon carbide power device chip after copperization, and relates to the technical field of chip manufacturing, and the copper wire bonding process comprises the following specific steps: step 1, chip pretreatment: preparing the silicon carbide power device chip, placing the chip in a cleaning tank, and cleaning the silicon carbide power device chip; the method has the advantages that the nickel layer, the metal palladium layer and the metal copper layer with the specific thickness and sequence are evaporated on the surface of the chip, the buffer layer with the gradient structure is prepared, the plating uniformity and the appropriate thickness are ensured through the accurately-controlled electrode layer evaporation process, the problems of wafer warping, buffer failure and the like are solved, and the production efficiency is improved. A stable electrical connection basis is provided for the chip, the elasticity modulus of the gradient structure of the buffer layer can be gradually reduced from contact with the electrode layer to contact with the copper wire according to the stress distribution characteristics, the stress dispersion effect is greatly improved, the reliability of the chip in the bonding and subsequent use processes is remarkably improved, the service life of the chip is prolonged, and the production cost is reduced. And the risk of product failure caused by chip damage is reduced.

The invention relates to the technical field of wire harness processing, and discloses a wire harness peeling device for wire harness processing, which comprises a mounting rack and a mounting frame fixedly connected to the mounting rack, a mounting ring is fixedly connected in the mounting frame, and a cutting box is rotatably connected in the mounting ring. In the annular cutting process of the wire harness skin, the skin is stably clamped and fixed through a clamping mechanism in a clamping and peeling box, meanwhile, the clamping and peeling box is driven by a driving mechanism to move in a mounting frame, and a transmission mechanism on the clamping and peeling box drives the clamping and peeling box to rotate while moving; according to the wire harness peeling device, the clamping blocks are arranged, so that the clamped and fixed skin is snapped under the action of pulling force and twisting force of the clamping blocks, the skin does not need to be completely cut off by an annular cutter, a certain distance is kept between the annular cutter and a wire in a wire harness, a copper wire in the wire harness is prevented from being damaged by the annular cutter, the wire harness peeling quality is improved, and meanwhile the snapped skin is driven to be separated.

The invention relates to an intelligent bonding copper wire power control method and system based on a clustering analysis model, and the system comprises a data collection module which is used for obtaining multi-dimensional parameters related in a copper wire bonding process in real time; the data preprocessing module is used for carrying out normalization, noise reduction and feature extraction processing on the collected data; the clustering analysis module is used for clustering the feature data by using a clustering algorithm to generate a plurality of feature clusters; the power prediction module is used for predicting the required optimal power by using a deep learning algorithm based on the clustering result and historical data; the dynamic power adjusting module is used for predicting power in real time and adjusting power output; through the technical means of clustering analysis, deep learning and PID control, the problem of power control in the copper wire bonding process is effectively solved, the process stability and the production efficiency are remarkably improved, and the method has important application value.

The invention relates to the technical field of wire harness welding, and discloses a wire harness welding device which comprises a first frame body, an automatic feeding assembly for feeding terminals of wire harnesses is arranged on one side of the first frame body, and a second frame body is fixedly connected to the inner wall of the bottom of the first frame body; the top of the second frame body is provided with a moving assembly used for moving the position of the wire harness and achieving switching between different stations, the top of the moving assembly is detachably provided with a clamping sleeve, and the upper side and the lower side of the clamping sleeve are each provided with a plurality of clamping grooves which are evenly arranged. According to the wire harness straightening device, copper wires of wires of a wire harness in a clamping sleeve can be doubly smoothed and straightened through a clamping type straightening mechanism and a rotary straightening mechanism of the straightening assembly, multiple strands of wires of the wire harness are orderly clamped and arranged through the clamping sleeve, and then the clamping sleeve and the wire harness are fixed to the moving assembly; therefore, the wiring harnesses can be rapidly arranged and fixed, the wiring harnesses can be switched among different stations through the moving assembly, and the integration degree and the automation degree of the equipment are high.

The invention relates to the technical field of copper stranding machines, in particular to a high-speed copper stranding machine with a torsion eliminating function for doubling multiple strands of copper wires, which comprises a fixed seat, and the top of the fixed seat is sequentially provided with a back-twist type wire stranding unit, a shaping type wire fixing unit and a winding unit from left to right; according to the invention, the back-twist type wire stranding unit carries the pay-off wheel to rotate, and the shaping type wire fixing unit and the winding unit are combined to fix and wind the stranded wire, so that high-speed twist-eliminating type stranded wire winding processing of multiple strands of copper wires is realized, the rotating cylinder is synchronously carried to rotate, intermittent secondary multi-point extrusion type shaping twisting of the stranded wire in the wire penetrating cylinder is realized, and the twisting efficiency is improved. And the shaping effect of twisted wire winding can be enhanced, the twisted wire twisted for the second time can naturally release the torsion force, and then the efficient torsion-eliminating type winding effect is achieved.

The invention discloses a traction winding device and method based on copper wire production, and relates to the technical field of copper wire production. The copper wire winding device comprises a winding box used for winding copper wires, and further comprises an adjusting unit which comprises a wire inlet assembly, a driven assembly and an adjusting assembly; and the traction winding unit is arranged on the winding box and used for achieving automatic winding and orderly arrangement of the copper wires and comprises a winding assembly and an arrangement assembly, the winding assembly is used for achieving automatic winding of the copper wires, and the arrangement assembly is used for adjusting the winding positions of the copper wires in the winding process and achieving orderly winding of the copper wires without stacking. The copper wire winding device has the advantages that the winding tension degree of the copper wire can be automatically adjusted according to the curling degree of the copper wire and the winding pressure applied to the copper wire during winding, rapid change of tension of the copper wire during winding is avoided, the winding safety is high, meanwhile, the winding position of the copper wire can be flexibly changed, and the winding efficiency is improved. And arrangement is more uniform and orderly during winding, and the winding effect is better.

The invention discloses a multi-layer protection cable resistant to an extreme environment, and belongs to the technical field of cables. The cable is of a seven-layer composite structure design and sequentially comprises a conductor, an insulating layer, a shielding layer, a buffer layer, a waterproof layer, a heat insulation layer and a protective outer layer from inside to outside, and the conductor is made of high-purity oxygen-free copper; the insulating layer is made of a polyimide material and has high temperature resistance, low temperature resistance and excellent insulating property; the shielding layer is composed of a tinned copper wire woven mesh and a high-permeability permalloy foil, and electromagnetic interference is effectively shielded; the buffer layer is made of an elastic rubber material to relieve mechanical stress; the waterproof layer adopts a nanoscale fluorosilicone resin coating and has excellent waterproof performance; the heat insulation layer is made of ceramic fibers and aerogel, and efficient heat insulation is provided; and the protective outer layer is made of a high-strength and corrosion-resistant polyether-ether-ketone (PEEK) material. The cable has excellent high temperature resistance, low temperature resistance, corrosion resistance and electromagnetic interference resistance, is suitable for extreme environments, and ensures stable transmission of electric power and signals under extreme conditions.

The invention discloses an intelligent bonding copper wire equipment control method and system based on the Internet of Things, and relates to the technical field of semiconductor manufacturing. An intelligent bonding copper wire equipment control system based on the Internet of Things comprises copper wire bonding equipment, an edge computing gateway, a cloud platform and a communication module. According to the invention, a three-level cooperative intelligent control system combining real-time control of an equipment end, intelligent prediction of an edge layer and dynamic adjustment of parameters, and long-term optimization of a cloud end and remote intervention of experts is innovatively constructed, and a hierarchical uploading and distributed cooperative control strategy of real-time data and historical data is combined; data integrity, real-time performance, intelligence and system expandability are effectively considered, and an intelligent copper wire bonding control overall solution for complex scenes is formed.

The invention provides a copper-steel composite heat pipe and a preparation method thereof, and relates to the technical field of heat pipes, the copper-steel composite heat pipe comprises a steel-copper composite pipe, and the steel-copper composite pipe is composed of a copper inner pipe and a steel outer pipe. An internal copper structure is arranged in the steel-copper composite pipe; the internal copper structure is copper powder or a copper wire mesh. The copper powder is unilateral copper powder or bilateral copper powder or ring copper powder; the copper wire mesh is a copper mesh, or a copper mesh and a copper wire capillary, or a copper wire capillary. The steel outer pipe is made of steel 316L, and the copper inner pipe is made of copper C1020. The copper-steel combined material is used, the cost is saved, and it is guaranteed that materials are saved in the whole heat dissipation field. The double-layer combination of the copper inner pipe (C1020, high heat conduction) and the steel outer pipe (316L, corrosion resistance and high strength) is adopted, the efficient heat conduction of copper is utilized, and the environment erosion resistance and mechanical impact resistance of steel are utilized, so that the heat pipe is adaptive to complex working conditions (such as industrial high-temperature, humid or corrosion risk scenes), and the service life of the heat pipe is prolonged.

The invention discloses a continuous straightening device for copper wire production, which comprises a first connecting box, a second connecting box is fixedly mounted at one end of the first connecting box on the upper surface of the first connecting box, and a traction rolling mechanism can perform 360-degree rolling straightening on the outer surface of a drawn copper wire. A plurality of n-shaped frames are fixedly installed on the upper surface of a connecting box of the continuous straightening mechanism and the traction rolling mechanism, and the continuous straightening mechanism is installed in the n-shaped frames in a transmission mode, so that the continuous straightening mechanism can pull continuously produced copper wires into the traction rolling mechanism, and the traction rolling mechanism is fixedly installed on a second connecting design. In the copper wire straightening process, the continuous straightening mechanism accurately straightens the straightness of the copper wire through the multi-angle pressure synergistic effect, deformation such as bending and twisting is eliminated, and preliminary straightening is completed; and then, the mechanism conducts 360-degree rolling on the outer surface of the copper wire, secondary fine correction is conducted, and finally the high-precision and high-quality straightened copper wire is produced.

The invention discloses a temperature and pressure sensor and a manufacturing method thereof, the temperature and pressure sensor comprises a support assembly formed by an inner support and a thermistor through an injection molding process, two pin copper wires of the thermistor are welded to an insertion piece of the inner support, and a plastic supporting structure wrapping the thermistor and the inner support is formed through injection molding; one end of a PIN needle of the terminal button is connected with an external plugging port; one end of a conductive circuit of the flexible wire board is respectively welded with the PIN of the ceramic capacitor and the insertion piece of the inner bracket, and the other end of the conductive circuit of the flexible wire board is welded with the other end of the PIN of the terminal button; a through hole is formed between the support assembly and the shell, a medium makes contact with the ceramic capacitor through the through hole, the ceramic capacitor transmits a pressure signal to the outside through the flexible wire board and the end button, the thermistor senses the temperature of the medium through the plastic supporting structure, and a temperature signal is transmitted to the outside through the inserting piece, the flexible wire board and the end button. The thermistor is effectively prevented from losing efficacy due to medium impact, and meanwhile, the structural process is relatively simple and easy to assemble.

The invention discloses an adjustable cable preparation wire drawing forming machine, and relates to the technical field of cable wire drawing forming machines, the adjustable cable preparation wire drawing forming machine comprises a shell, a fixing block is rotatably connected in the shell, a round rod is fixedly connected to the outer side of the fixing block, a spur gear is fixedly connected to the outer side of the round rod, and a through hole is formed in the fixing block; an arc block is fixedly connected to the inner wall of the through hole, a positioning assembly is arranged in the middle of the interior of the fixing block, a rotating wheel is slidably connected to the through hole, a fixing plate is rotatably connected to the outer side of the rotating wheel, an elastic plate is fixedly connected to the outer side of the fixing plate, and a guide assembly is fixedly connected to the end, away from the rotating wheel, of the fixing plate. According to the adjustable wiredrawing forming machine for cable preparation, the guide assembly makes contact with the outer side of a copper wire, the copper wire can advance in the preset direction in the wiredrawing process, deviation or bending cannot occur, a stable path is provided for wiredrawing of the copper wire, and the copper wire is prevented from deviating from the correct path in the wiredrawing process.

The invention relates to the technical field of mutual inductor production, in particular to a coil winding device for mutual inductor production. The coil winding device comprises a rack and a winding wheel, the winding wheel is rotationally supported on the rack through a plurality of supporting wheels, the winding wheel is provided with a C-shaped notch used for containing an iron core, and the winding wheel comprises a middle ring and side rings located on the two sides of the middle ring; the side rings and the middle ring are coaxial and are arranged in a mutually rotating mode, the circumferential wall of the middle ring is used for winding a copper wire, and one side ring is provided with a wire penetrating ring used for penetrating the end of the copper wire. The tensioning assembly is used for clamping the copper wire between the iron core and the threading ring; the magnetic powder brake is connected to the supporting wheel and provides resistance for the middle ring through the supporting wheel so as to tension the copper wire; and the driving assembly is used for driving the side ring to rotate and winding the copper wire on the iron core. Resistance is provided by the magnetic powder brake through the middle ring of the reel, so that tensioning of a copper wire can be controlled, and the winding quality of the copper wire on an iron core is improved.

The utility model discloses a bending-resistant radio frequency coaxial cable, which comprises an inner conductor, an insulating layer, a shielding layer and a sheath layer which are sequentially arranged from inside to outside, the inner conductor is formed by concentrically twisting a plurality of strands of silver-plated copper wire monofilaments; the insulating layer comprises an inner insulating layer and a polytetrafluoroethylene film outer insulating layer; the inner insulating layer is wrapped outside the inner conductor and is formed by sintering a polytetrafluoroethylene tape; the polytetrafluoroethylene film outer insulating layer is wrapped outside the inner insulating layer; the shielding layer comprises an inner shielding layer, a middle layer and an outer shielding layer, and the inner shielding layer is a silver-plated copper strip wrapping layer and wraps the insulating layer; the middle layer is a polyimide aluminum foil composite belt wrapping the inner shielding layer; the outer shielding layer is a silver-plated aramid yarn woven layer and is woven outside the middle layer; the sheath layer is a polytetrafluoroethylene sheath layer. The cable provided by the utility model has the characteristics of high-frequency bending resistance and good environment resistance, and also has excellent electrical transmission performance.

The invention relates to the technical field of annealing detection, in particular to a method and system for detecting intermediate annealing in multi-pass rolling of copper wires, and the method comprises the steps: respectively carrying out the surface feature collection of the multi-pass annealed copper wires, and respectively constructing a copper wire feature model according to the surface features of a plurality of copper wires; the method comprises the following steps: respectively carrying out structure mapping on a plurality of copper wire characteristic models to obtain copper wire correlation structures, respectively establishing copper wire dependence networks according to a plurality of correlation structures, outputting single-time defect information of each annealing according to a plurality of copper wire dependence networks, and establishing a dynamic feedback loop to obtain single-time annealing deviation. According to the method, the defects in multi-source data integration and dynamic updating in the traditional copper wire rolling annealing process are effectively overcome, the annealing parameters can be dynamically adjusted based on the single-time defect information, the accuracy and response speed of annealing quality control are remarkably improved, and the method is suitable for large-scale popularization and application. And the safety and the efficiency of the whole annealing process are enhanced.

The utility model discloses a copper wire end torsion head forming device for a flat wire motor stator winding, which relates to the technical field of stator winding forming and comprises a torsion head base, a swing mechanism, a torsion head die, a wire leaning disc, a lower contact pin, a press mounting frame, a lifting electric cylinder, a stator clamping jaw and an upper contact pin. According to the utility model, the copper wire head twisting operation of a stator winding without a straight line segment can be realized, and the problem that pairwise and relatively rotating copper wire paint skins are scratched and damaged in a one-time head twisting forming process is solved; the bare copper part is separated from the paint film of the other copper wire by the distance of the thickness of one paint film, so that the problem that the bare copper scratches the paint leather is avoided; according to actual application detection and comparison, compared with shape comparison after winding forming of other technologies, the distance between a wire leg at the welding spot position and the bottom layer copper wire paint leather can be increased, the lower layer paint leather can be prevented from being scalded by welding heat, paint leather damage caused by light leakage is reduced, and meanwhile the insulation quality is improved.

The invention relates to the technical field of electric wires and cables, and discloses an ultrahigh-conductivity electric wire and cable and a preparation method thereof. A graphene enhancement layer; a nano composite insulating material layer; an inner semi-conductive layer; a conductive copper strip shielding layer; a silver-plated copper wire woven mesh shielding layer; an intelligent monitoring and protection sheath; the method comprises the following steps: step S01, preparing a superconducting core wire strand; step S02, preparing a nano composite insulating material layer; s03, preparing a shielding layer; step S04, intelligent monitoring and protection sheath preparation; the superconducting core wire strand formed by twisting a plurality of YBCO superconducting material filaments forms a stable structure with excellent conductivity under the precise control of twisting process parameters, so that the resistance is effectively reduced, the loss in the electric energy transmission process is reduced, the electric energy transmission efficiency is improved, high-density current can be borne for stable transmission, and the service life of the cable is prolonged. And the requirement of the modern electrical engineering field on high conductivity of wires and cables is met.

The invention discloses an intelligent bonding copper wire processing control method and system supported by big data and Internet of Things, and the method comprises the steps: collecting multi-source data in a bonding copper wire processing process in real time through Internet of Things terminal equipment, and uploading the multi-source data to a cloud big data platform, performing quality evaluation on the processing procedure based on a preset processing quality evaluation model to generate a processing state evaluation result; if the abnormal probability of any working procedure in the processing state evaluation result exceeds a preset threshold value, calling an optimized path of the corresponding working procedure in a historical database, and generating a dynamic adjustment parameter based on a transfer learning algorithm; and the processing equipment is optimized based on the dynamic adjustment parameters, and optimization data is fed back to the cloud in real time to form closed-loop control. The bonding copper wire processing process is intelligently monitored and adjusted through a technical chain of real-time sensing of the Internet of Things, cooperative control of dynamic parameters and closed-loop self-learning, and the problems of large fluctuation of quality stability and lagging of abnormal response caused by strong manual dependence are solved.

The invention discloses a transformer coil winding device which comprises a winding machine body, a knocking device, a pressing device and an auxiliary rod, and an iron core is arranged on the winding machine body; the flat copper conductor penetrates through the winding machine body and is wound on the iron core; the knocking device is arranged on the winding machine body; the pressing device comprises a rotating shaft, an elastic pressing structure, a first spring and a driving structure, and the rotating shaft is arranged on the winding machine body and connected with the driving structure; the elastic pressing structure is arranged on the rotating shaft in a sliding manner; the two first springs are arranged on the two sides of the elastic pressing structure correspondingly. The auxiliary rod is arranged above the pressing device, limiting switches are arranged at the two ends of the auxiliary rod respectively, and the pressing structure makes contact with the limiting switches when moving. According to the application, the flat copper wires are knocked through the knocking device, so that the flat copper wires are more attached to the surface of the iron core, the flat copper wires can be dynamically pressed through the pressing device, the flat copper wires wound on the iron core are tighter, and the electrical performance is improved.

The invention relates to a preparation method of a photovoltaic welding strip, the photovoltaic welding strip, a photovoltaic module and a preparation method, and the preparation method comprises the following steps: S1, carrying out the oxide removal and annealing treatment of an oxygen-free copper wire at the same time, and obtaining an annealed copper strip after cooling; s2, in the protection environment of inert gas, the annealed copper strip is immersed in molten brazing filler metal alloy liquid for surface tin plating, and after cooling, a plated copper strip with an alloy plating layer is obtained; s3, oxide on the surface of the plated copper strip is removed; s4, immersing the plated copper strip subjected to oxide removal into a film forming substance, and drying to obtain a film forming welding strip; wherein the film forming substance does not contain carboxyl. According to the method, oxide removal and annealing treatment are carried out at the same time, the photovoltaic welding strip which is high in preparation efficiency and can be welded without participation of scaling powder can be achieved, the photovoltaic welding strip is combined with the preparation technology of a photovoltaic module, and a high-reliability module can be obtained.

The invention discloses an electric wire and cable copper wire stranding machine, and belongs to the technical field of copper wire stranding, the electric wire and cable copper wire stranding machine comprises a rack, a winding mechanism used for winding a stranded copper wire is assembled on the rack, a material rack unit is assembled on one side, far away from the winding mechanism, of the rack, the material rack unit comprises a shaft rod installed in a first bearing seat, and an installation disc is assembled on the shaft rod; a material frame is inserted into the mounting disc by forming an inserting groove, and a driving piece is assembled at one end of the shaft rod; through the arrangement of the anti-loosening unit and the stranded wire guide frame, the rotating pay-off barrel drives the extending frame through the moving unit to push the rolling shaft to be attached to a copper wire in real time in the stranding process, so that no matter what degree the pay-off is achieved, the rolling shaft can always apply tension to the wire outlet end of the copper wire, the copper wire is kept in tension, and the copper wire is prevented from being loosened. The stranding machine is simple in structure and convenient to use, the loosening condition along with the increase of the paying-off time is avoided, the loosening condition of the stranded wire is avoided, the quality of the stranded wire is ensured, and the risk of increasing the fault of the stranding machine is avoided.

The invention discloses full-automatic coil bending equipment, which belongs to the technical field of coil bending and comprises a bending head connected with an external driving mechanism, a central column is fixedly connected to the center of the top end of the bending head, a wire passing groove is formed in the inner side of the bending head, and a guide roller for clamping and guiding a copper wire is rotatably arranged at the wire passing groove through a support. A driven counting roller is arranged on the surface of the guide roller in an engaged mode, and an electromagnetic induction heating coil used for heating the copper wire is arranged on one side of the bending head. According to the copper wire bending device, the guide roller, the driven counting roller and the electromagnetic induction heating coil are arranged, when the correlation photoelectric sensors rotate to the mutually aligned positions, the electromagnetic induction heating coil heats the bending position of a copper wire, stress generated when the copper wire is bent can be greatly reduced, the surface of the bending position becomes flat, and the bending quality of the copper wire is improved. And the coil can be better attached to the iron core, so that the mounting stability of the coil is ensured.

The invention provides a wire pressing auxiliary device and method for a transformer winding machine, and relates to the technical field of winding machines, comprising a winding machine body and a rotating shaft, wherein a rotating shaft is rotatably provided at the lower part of one side of the winding machine body, and a winding piece is connected to one side of the rotating shaft, a sliding rod is slidably provided at the upper part of one side of the winding machine body, and a shaft plate is provided on one side of the upper and lower ends of the sliding rod; the invention drives the winding piece to rotate by the rotating shaft to wind the copper wire, and presses the clamping arm by pressing the elastic piece so that the two groups of clamping arms rotate inwardly and are clamped on the outer side of the winding piece, so that the wire pressing roller presses the winding part of the copper wire for regular winding, and presses and regularizes from two points, and before that, the copper wire passes between two groups of cleaning rollers and then between two groups of clamping rollers, and the T-shaped square column is pushed by the first spring to move the mounting plate inward, and the two groups of cleaning rollers and two groups of clamping rollers clamp the copper wire for cleaning and regularization, thereby improving the quality of the copper wire and having diversified functions.