1254 results about "Tension control" patented technology

The invention provides an aluminum material shearing machine pressure self-adjusting feeding system based on synchronous rollers, relates to the technical field of aluminum material shearing machines, and adopts three synchronous rollers to be mounted in a mounting groove in the surface of a turntable through a movable block, a pneumatic telescopic rod and a pressure sensor in a combined manner to form multi-point support and tension control on an aluminum material. The console collects an extrusion force signal output by the pressure sensor in real time, calculates an actual pressure value in the horizontal direction through a pressure decomposition algorithm in combination with a turntable angle output by the angle sensor, compares the actual pressure value with a preset tension threshold value to generate an error signal, and drives the pneumatic telescopic rod to dynamically adjust the position of the synchronous roller; and when the error exceeds a set range, the servo motor can be controlled to adjust the angle of the turntable, and the wrapping angle of the synchronous roller is changed to realize tension compensation. The conveying tension of the aluminum material under the complex working condition is kept stable, the conditions of loosening, wrinkling, deviation and too tight snapping are avoided, and therefore the stability of the aluminum material in the conveying process and the follow-up shearing precision are improved.

The invention relates to the technical field of metal rolling automation, and discloses a computer intelligent control system of a rolling mill, which comprises a rolling mill production line, and the rolling mill production line further comprises a tensiometer, a pressure sensor and a displacement sensor; and the computer intelligent control system is electrically connected with an executing mechanism and a sensor of the rolling mill production line and comprises a tension control module, an automatic thickness control module and an online model self-adaptive module. The method comprises the following steps: controlling strip steel tension through a tension control module; the strip steel outlet thickness is adjusted through the thickness automatic control module; and model parameters such as rolling mill rigidity and friction compensation are identified in real time in the rolling process through an online model self-adaption module, and continuous optimization of the control model is achieved. By introducing the online model adaptive module, real-time online correction of the core physical model of the control system is realized, and the problem of model mismatch caused by equipment wear and working condition change is solved.

The invention belongs to the technical field of automatic control, and particularly relates to a digital control system for strip coiling equipment, which comprises the following steps of: firstly, comprehensively acquiring strip tension data and state characteristic information by combining a tension sensing assembly and image acquisition equipment, dynamically adjusting a braking torque parameter, and then, acquiring a dynamic control signal by taking the linear speed of a coiling machine as a target signal; the speed of the uncoiling machine and the speed of the traction roller are synchronously aligned through a following strategy, then a taper tension control mode is adopted, the tension value is dynamically adjusted in combination with real-time coiling diameter parameters, the tension stability and the coiling regularity in the coiling process are ensured, and finally the strip deviation problem is detected and processed in real time according to a closed-loop deviation correction mechanism. The equipment control strategy in the strip coiling process is deeply bound with uncoiling control, synchronous coordination, coiling control and a deviation correction core module, and the integrated control capability of multivariable coordination and self-adaptive optimization is achieved, so that the automation and intelligence level of the strip coiling process is effectively improved.

The invention relates to the technical field of belt conveyors, and discloses an intelligent tensioning control method and system for a belt conveyor. According to the method and system, a dynamic mathematical model is constructed by collecting the current, rotating speed and torque parameters of a driving motor and combining hydraulic cylinder pressure and turnabout drum bearing force data, and high-precision indirect estimation of belt tension is achieved; a progressive adjustment strategy is adopted, the displacement of the hydraulic cylinder is dynamically adjusted according to tension deviation, mechanical abrasion is reduced, and system reliability and severe environment adaptability are improved. The method has the beneficial effects that the tension control error is reduced, the hydraulic action frequency and the maintenance cost are reduced, and meanwhile, the operation efficiency and safety of the conveyor are improved.

The invention relates to a scraper chain tension dynamic optimization method based on real-time load feedback, and belongs to the technical field of scraper chain control. The method comprises the following steps: acquiring load data of a scraper chain in various operation states; carrying out standardization processing on the load data of various operation states and then extracting features to obtain load time sequence features; carrying out time attention mechanism processing on the load time sequence characteristics and the load data of the multiple operation states to obtain importance weights; a tension value is calculated according to the load data of each operation state and the importance weight of the load data; calculating a real-time working condition coefficient of the current time node, and dynamically adjusting a preset safety tension range to obtain a real-time safety tension range of the current time node; comparing the tension value with a real-time safe tension range, and generating a control instruction according to a comparison result; and executing the control instruction. The tension control method of the scraper chain is optimized, and the control precision of the tension of the scraper chain is improved.

The invention relates to the technical field of spaceflight material forming, in particular to a tension control winding process of a spaceflight carbon fiber composite launch canister, which comprises pretreatment, winding forming, curing and post-treatment. The method comprises the following steps: S1, coating a release agent and a modified coating after processing a core mold, carrying out plasma treatment and eliminating stress; the carbon fiber filaments are soaked in resin containing nanometer components, and are pre-stretched after a hot melting reaction; s2, closed-loop tension control is conducted, winding is conducted according to segmented angles, and modified resin is coated between layers to be overlapped in a crossed mode; s3, stepwise heating and curing, dynamically regulating the pressure and introducing inert gas; and S4, polishing after hydraulic demolding, carrying out sand blasting, carrying out transition layer and ceramic coating, and carrying out multi-dimensional detection. According to the process, the mechanical property and environmental adaptability of the launch canister are improved, the process precision is high, defects are reduced, the forming time is shortened, the rework rate and cost are reduced, the spaceflight requirement is met, and the process is suitable for batch production.

The invention relates to the technical field of take-up tension control, and discloses an intelligent take-up tension control system. A multi-source sensing acquisition unit of the system acquires a wire distribution topological graph through a tension sensing platform, acquires a reference tension parameter of a take-up reference point, and acquires strain characteristics and movement speed characteristics of each wire section; the dynamic feature modeling unit performs multi-modal fusion on the reference tension parameters and the features to generate a multi-modal tension feature matrix; the static path analysis unit constructs a static tension conduction path based on the tension characteristic value in the matrix and the corresponding wire section; the take-up execution control unit controls a take-up track of the take-up mechanism on the adjustable path in combination with the static path conduction node value and the corresponding wire section; the dynamic compensation unit collects the dynamic tension parameter of the current wire section in the take-up process, the tension applying direction of the take-up mechanism is compensated and corrected according to the dynamic tension parameter and the static path conduction node value, and the take-up tension control stability and accuracy are improved.

The invention discloses an automatic welding mechanism of a foil winding machine, and relates to the technical field of electrical equipment manufacturing, the automatic welding mechanism comprises a supporting plate, and first supporting rods are symmetrically arranged at the top of the supporting plate; the traction mechanism is arranged on the first supporting rod; the supporting frame is arranged on the supporting plate, and a feeding belt is arranged at the top of the supporting frame; and the foil winding mechanism is arranged on one side of the traction mechanism and comprises a pair of mounting plates and a pair of mounting plates which are respectively arranged on the pair of mounting plates. By integrating the feeding and traction mechanism, the foil winding mechanism, the induction mechanism, the cutting and tensioning adjusting device, the positioning and welding device and the limiting mechanism and optimizing the cooperative relation and action logic of all the components, full-process automation from foil belt feeding, tension control, fixed-length winding, automatic cutting to precise positioning and welding of the tail end of a foil roll is achieved.

The invention relates to the technical field of tension control, and discloses a longitudinal shearing equipment tension fault-tolerant control method based on multi-source information fusion, which comprises the following steps: acquiring detection parameters in each period, evaluating the credibility of each first type of parameters and each second type of parameters, judging whether each first type of parameters and each second type of parameters reach the standard or not according to the credibility, and if yes, judging whether the first type of parameters and the second type of parameters reach the standard or not. If any one of the first type of parameters does not reach the standard, screening out an estimation model corresponding to the first type of parameters from a preset model library according to other standard first type of parameters and second type of parameters, and calculating an estimated value according to the screened estimation model; replacing the corresponding first type of parameters with the pre-estimated values and inputting the pre-estimated values into a preset control algorithm to calculate target tension; and outputting the target tension. When data of a single sensor or multiple sensors are abnormal, an optimal tension control instruction can be given by utilizing residual reliable data and an internal physical relationship thereof.

The invention discloses a dyeing machine cloth guide wheel set structure capable of preventing cloth winding, and relates to the technical field of dyeing machines. A support frame is fixedly mounted at the top of the dyeing machine through bolts; the use method of synchronous driving and preliminary guiding, air film resistance reduction and dynamic supporting, intelligent wrinkle detection and smoothing deviation correction and secondary smoothing and adhesion separation is adopted, the front guide roller, the adjusting guide roller and the rear guide roller are synchronously driven by a servo motor to convey cloth, and the cloth is conveyed by the front guide roller, the adjusting guide roller and the rear guide roller. According to the multi-dimensional cooperative anti-wrinkling and anti-winding system, the multi-dimensional cooperative anti-wrinkling and anti-winding effects are achieved through the cooperative effect of three core dimensions of tension control optimization, active path deviation correction and physical separation adhesion on the whole, and the anti-wrinkling and anti-winding effect is achieved through the multi-dimensional cooperative anti-wrinkling and anti-winding effect of the multi-dimensional cooperative anti-wrinkling and anti-winding system, so that the multi-dimensional cooperative anti-wrinkling and anti-winding effect is achieved. And the risks of wrinkle formation and subsequent winding of the cloth in the cloth guiding process are efficiently eliminated.

The invention relates to the technical field of anchor chain tension detection, and discloses an anchor chain fixed section tension detection device and a detection method thereof.The anchor chain fixed section tension detection device comprises a tension detection mechanism, the top end of the tension detection mechanism is connected with a tension control mechanism, and one end of the top of the tension control mechanism is connected with an anchor chain fixed section control mechanism; through the arrangement of the tension detection mechanism, the to-be-detected anchor chain is detected under different conditions of an air reference state, a seawater corrosion state and a blending load state, so that the overall breaking strength index of the anchor chain can be obtained, and the tensile strength of the anchor chain can be detected by controlling the tension change, the wave load and the seawater corrosion effect of the anchor chain. Different service conditions of the anchor chain in an air reference state, a seawater corrosion state and a blending load state are simulated; by comparing and analyzing the mechanical properties of the anchor chain in different states, the weak link of the anchor chain can be accurately positioned, the failure mechanism of the anchor chain can be revealed, and an important reference is provided for maintenance and replacement of the anchor chain.

The invention discloses a U-shaped aqueduct prestress multi-beam cooperative tensioning control method and system. The method comprises the steps that S1, a quantitative derivation model is constructed, based on an aqueduct structural mechanical equilibrium equation, a prestress coupling effect item is introduced for calculation, a prestress coupling matrix is output, and an initial tensioning sequence is derived; the device is simple in structure, and an initial tensioning sequence is deduced by establishing a mechanical equilibrium equation and introducing a coupling effect item; meanwhile, stress / displacement deviation data collected by a monitoring system in real time are fed back to an edge calculation terminal to calculate a control strategy in real time, adjustment is executed by a tensioning device, and therefore a field data closed-loop optimization mechanism is constructed, the tensioning force and sequence can be dynamically corrected, the limitation of a static model is broken through, and the construction efficiency is improved. And a displacement constraint term is introduced as a punishment or control condition in the optimization process, so that deformation overrun of key parts of the structure is effectively prevented, and the precision, safety and intelligent level of prestress construction are remarkably improved.

The invention discloses an adaptive control method and system for paying-off tension of a ground wire, particularly relates to the technical field of automatic control, and is used for solving the problem of control misalignment caused by incapability of distinguishing and stripping multi-span coupling vibration interference in an existing tension control method. Firstly, high-frequency fluctuation components are identified by monitoring frequency band energy distribution of tension signals, then state space trajectory similarity and causal network topology of multi-point vibration signals are cooperatively analyzed, and local or global coupling of vibration sources is accurately judged; then, extracting a dominant vibration frequency and a phase difference, and separating a vibration interference component from the original tension signal through a phase compensation adaptive filter according to the dominant vibration frequency and the phase difference; and finally, subtracting the interference component from the original tension to obtain a real tension value for closed-loop adjustment of the output of the tension equipment. Accurate identification and dynamic compensation of vibration interference are achieved, and the control precision of the pay-off tension and the system stability are remarkably improved.

The invention discloses an intelligent regulation and control method and system for tension equipment for lining cloth production, and relates to the technical field of intelligent regulation and control, and the method comprises the steps: constructing a lining cloth production tension database, carrying out twinborn simulation, and generating a digital twinborn body of the tension equipment; tension matching optimization is carried out, and initial tension equipment control parameters are determined; lining cloth production is executed, meanwhile, lining cloth production multi-mode data flow in the lining cloth production process is collected, simulation prediction is conducted, and lining cloth tension prediction parameters are obtained; and if the lining cloth tension prediction parameter exceeds the preset tension fluctuation threshold, triggering a closed-loop processing mechanism to call a tension compensation regulation strategy, and performing compensation correction and dynamic regulation on the initial tension equipment control parameter based on the tension compensation regulation strategy. The technical problems that in the prior art, tension control parameter setting depends on artificial experience, and lining cloth quality fluctuates due to untimely regulation and control are solved, and the technical effects of improving tension control precision, real-time response capacity and lining cloth quality stability are achieved.

The invention discloses an intelligent yarn low-tension control system, and relates to the technical field of textile control systems. A tension estimation module takes output of a physical tension sensor and torque and speed signals of a servo driver as inputs; after being processed by a filter, the tension data signals are provided for the model prediction controller module and the self-adaptive PID module; the visual detection unit is coupled with the expansion reed driving mechanism through a control signal and time sequence synchronization interface, and the visual detection unit outputs segment position information corresponding to the position of the expansion reed to the edge real-time controller according to a breadth segment. According to the invention, through a fused sensing architecture of multi-channel physical sensing and virtual tension estimation, stable and redundant tension estimation can still be provided and confidence information can be output when measuring points are insufficient or local interference exists, and the problems that traditional single-point sensing is easily interfered by local liquid drops and dirt, the point supplementing cost is high and the installation space is limited are solved.

The utility model relates to a micro tension control device for a diaphragm of a winding machine, which comprises a driving mechanism, a first tension adjusting mechanism, a tension detection mechanism, a second tension adjusting mechanism and a plurality of roller passing structures which are mounted in the winding machine. The multiple roller passing structures are installed between the unwinding roller and the winding needle, the first tension adjusting mechanism, the driving mechanism, the tension detecting mechanism and the second tension adjusting mechanism are sequentially inserted among the multiple roller passing structures, and a diaphragm is unwound by the unwinding roller and sequentially passes through the first tension adjusting mechanism, the driving mechanism, the tension detecting mechanism and the second tension adjusting mechanism. And winding at a winding needle. According to the diaphragm micro-tension control device for the winding machine, high-precision control can be performed on diaphragm micro-tension through three schemes at the same time, constant diaphragm tension is guaranteed, and the problems of loosening, dislocation, excessive stretching and the like of the diaphragm in the conveying process are solved.

The invention discloses a continuous spinning path coordination system based on real-time tension regulation and control, relates to the technical field of spinning tension control, and is used for solving the problem of poor continuous path tension coordination regulation. The method comprises a path modeling module, a state acquisition module, a coordination control module and a strategy optimization module, and comprises the following steps: establishing a path structure model from spinning to winding, planning tension measuring points, generating state vectors, identifying drafting section disturbance, winding section disturbance and local friction disturbance, and predicting the tension change of each path node in combination with a tension conduction time delay parameter; a control combination is generated among a drafting drive unit, a winding drive unit, a tensioning unit and a belt drive yarn guide component, cooperative adjustment of an execution unit is achieved, a strategy optimization module establishes a statistical relation between tension and quality based on end breakage and quality detection results, a tension target interval is updated in a self-adaptive mode, and the execution unit adjusts constraints and priorities. The end breakage rate is reduced, and the stability and the product consistency are improved.

The invention relates to a movable disc pay-off system with a precise tension control function and a using method thereof, and belongs to the technical field of cable manufacturing equipment. The movable disc pay-off system comprises a rack, a tension system arranged on the rack, a winding displacement system, a centering device, a movable disc pay-off system and a control host; the tension system comprises a servo motor, a tension swing rod, a tension wheel, a balancing weight, a limiting roller, a tension detection guide wheel and a tension detector, an output shaft of the servo motor is in transmission connection with the tension wheel through the tension swing rod, the conductor sequentially bypasses the tension wheel and the tension detection guide wheel of the centering device to form an S-shaped path, and the tension detector is a wheel type pressure sensor. And the bearing seat is arranged on the tension detection guide wheel. According to the invention, high-precision tension control can be realized, the torque is dynamically adjusted through a closed-loop control algorithm and a servo motor according to the feedback of a tension detector, constant-tension pay-off is realized, stretching or outer diameter fluctuation of a superfine conductor is prevented, and the quality consistency and transmission performance of the cable are ensured.

The invention discloses an active tension control device and control method for a unilateral sewing thread of a composite preform, and the device comprises a tension control drive unit, a sensing monitoring unit, a thread guide unit and a thread consumption unit, and the tension control drive unit comprises a tension control motor and a thread roller; the sensing monitoring unit comprises a tension sensor, a laser distance measuring sensor and a sewing action driving encoder, the thread guide unit mainly assists in transferring a sewing thread from a thread releasing area to a working area and comprises a thread guide wheel and a porcelain eye, and the thread consumption unit is a sewing working area. According to the control method, the speed control ring and the tension control ring jointly achieve tension control, the speed control ring combines the rotating speed of a real-time sewing action driving motor and the diameter of a real-time thread roller to achieve coarse adjustment, and then closed-loop real-time tension adjustment is achieved through the controller. By means of the active tension control method and device for the single-side sewing thread of the composite prefabricated body, active control over the sewing tension can be achieved, and the sewing quality of the prefabricated body is effectively improved.

The invention discloses an intelligent regulation and control method and system for dynamic tension of a belt conveyor based on reinforcement learning. The method comprises the following steps that S1, multi-source operation signals of the belt conveyor are obtained and preprocessed; s2, inputting the preprocessed multi-source operation signal into a feature fusion network, realizing time sequence and frequency domain feature fusion through sensing fusion and modal decoupling, and outputting a multi-modal fusion feature; and S3, constructing a reinforcement learning module, carrying out strategy evolution based on the dynamic change of the weight of the multi-modal fusion feature, and dynamically optimizing a reward function. The invention relates to the technical field of belt conveyor control. According to the intelligent regulation and control method and system for the dynamic tension of the belt conveyor based on reinforcement learning, through organic combination of multi-source signal fusion, reinforcement learning optimization and an online self-adaptive mechanism, the fixity and hysteresis of a traditional tension control method are overcome, and intelligent, precise and robust regulation and control of the dynamic tension of the belt conveyor are achieved.

The invention relates to the technical field of pipeline repairing equipment, in particular to a constant tension control system and method of a buried pipeline repairing spiral winding machine. The system comprises a data acquisition module, a tension control module and an execution adjustment module. The safety tension range is calculated through the data acquisition module, the target tension is determined, the tension control module establishes a non-linear relation model fusing the coiling diameter time-varying characteristic and the angle geometric path influence, and a linear decoupling strategy of feed-forward compensation and PID feedback is combined. Core interference caused by rolling diameter reduction and angle change can be actively and speculatively offset, the execution adjustment module optimizes distribution of control resources by accurately mapping a control quantity into a driving signal, model parameters are dynamically and finely adjusted according to the deviation between model prediction and actual output, and feed-forward compensation quantity is reversely corrected. The invention relates to a self-adaptive intelligent system with continuous self-calibration and self-evolution.

The invention relates to the technical field of steel wire winding, in particular to a constant tension control winding device and application of the constant tension control winding device in steel wire rough drawing, and the constant tension control winding device comprises a support, a lifting plate and a fixing plate, the wire arranging assembly is arranged on the lifting plate, and the wire arranging assembly is connected with a wire guiding ring used for guiding winding of a steel wire; the tension balancing mechanism is arranged on the fixing plate and connected with the wire arranging assembly, the tension balancing mechanism comprises a supporting roller, and the tension balancing mechanism can drive the supporting roller to move in the vertical direction when the wire arranging assembly moves; the winding assembly is arranged on the lifting plate, the winding assembly comprises winding rollers which are symmetrically arranged, a follow-up limiting mechanism is further arranged on the lifting plate, and by means of a tension balancing mechanism, the height of the supporting rollers can be adjusted when the wire arranging assembly guides the steel wires to be arranged in order, so that it is guaranteed that the steel wires are not prone to falling off when being wound; and the steel wire is kept in a certain tensioning range.

The invention discloses a process for improving a longitudinal shearing camber of QSTE650TM girder steel. The process comprises the steps of plate blank preparation, rolling and cooling, straightening treatment and longitudinal shearing machining. In the slab preparation step, the length of a slab is shortened to 8.5-9 m; in the rolling and cooling step, a plate blank is subjected to rough rolling and finish rolling firstly, and strip steel obtained after finish rolling is cooled; in the cooling process, air cooling is firstly carried out to 880-900 DEG C, then laminar cooling is carried out, the laminar cooling rate is 20-25 DEG C / s, and the final cooling temperature is 550-580 DEG C; the straightening treatment step comprises a rough straightening process and a fine straightening process; in the rough straightening process, the pressure of a rough straightening machine is 18-20 MPa; in the fine straightening process, the fine straightening insertion amount is controlled to be 30%-45% of the thickness of the strip steel, and the pressure of a fine straightening machine is 8-10 MPa; in the slitting processing step, the blade gap of a slitting machine is controlled to be 0.15-0.2 mm, and the winding tension is controlled to be 120-150N / mm. According to the method, the camber degree of the QSTE650TM girder steel after longitudinal shearing is systematically reduced, and the camber degree of the QSTE650TM girder steel is controlled within 3 mm.

The invention discloses an automatic winding machine for a current transformer, and relates to the technical field of transformer winding devices, an annular supporting seat is provided with an overturning assembly for driving clamping assemblies to overturn, the two clamping assemblies clamp the current transformer, and a rear supporting seat is provided with winding assemblies for winding coils on iron cores on the two sides of the current transformer respectively. The two clamping assemblies are used for clamping the two ends of the current transformer respectively, the winding assembly is used for winding a coil on an iron core on one side of the current transformer, the overturning assembly drives the current transformer clamped by the two clamping assemblies to overturn, and the winding assembly is used for winding a coil on an iron core on the other side of the current transformer. Automatic winding of the iron cores on the two sides of the current transformer is achieved through the continuous actions of clamping the iron cores, winding the iron cores and overturning the iron cores by 180 degrees, and the automatic winding device has the advantages that clamping is stable, coil tension control is stable, and the coils are evenly wound around the iron cores.

The invention discloses a self-adaptive suspension type outer wall cleaning unmanned aerial vehicle system and method based on constant tension control, and relates to the technical field of outer wall cleaning unmanned aerial vehicles. The system comprises a cleaning unmanned aerial vehicle subsystem, a water and electricity supply guarantee subsystem and an intelligent suspension retraction subsystem which are connected through a photoelectric liquid composite mooring rope; the intelligent suspension take-up and pay-off subsystem comprises a constant-tension take-up and pay-off device which monitors and adjusts the tension of a mooring rope in real time so as to maintain a constant micro-tension state, and it is ensured that the unmanned aerial vehicle flies stably. The water and electricity supply guarantee subsystem provides high-voltage direct-current electric energy and high-voltage fluid; the cleaning unmanned aerial vehicle subsystem comprises a self-adaptive telescopic spraying rod, and the position of a nozzle is dynamically adjusted according to the building facade structure so as to execute cleaning operation. By integrating constant tension control, high-voltage power supply and a self-adaptive cleaning mechanism, high efficiency, flight stability and operation safety of outer wall cleaning operation are achieved.

The invention relates to the technical field of cable manufacturing, and particularly discloses a tension adjusting device for a cable wrapping machine, which comprises a hollow main shaft as a static base; the unwinding drum is rotationally mounted on the hollow main shaft; the hysteresis braking assembly comprises an induction disc fixed to the unwinding drum and a magnetic base arranged on the hollow main shaft in a sliding mode. The tension assembly comprises a tensioning rod rotationally connected to the axis mounting rod and a thickness measuring rod sliding in the radial direction. The spiral driving assembly converts the radial movement of the thickness measuring rod into the axial displacement of the magnetic seat; the locking assembly comprises a gear ring and a pawl. The thickness measuring rod is used for detecting the diameter of a strip coil in real time, the spiral driving assembly is used for automatically adjusting the air gap between the permanent magnet and the induction disc, non-contact hysteresis constant tension control is achieved, and the problems of heat attenuation and tension fluctuation of traditional friction braking are solved; and the adjusting assembly drives the pawl to lock the unwinding drum when the tape is broken or the tape coil is used up, so that galloping and wire disorder are prevented, and the safety of wrapping operation is improved.

The invention discloses a rigid-flexible coupling mechanism with variable rod length for fibre bundle tension control. In the transmitting process, the fibre bundle passes through the front guide roller, the tension regulating roller and the back guide roller sequentially. The front and back guide rollers have fixed positions, while the tension regulating roller has an adjustable position to regulate the fibre bundle tension. The invention uses the variable rod length rigid-flexible coupling mechanism with a combination of a servo motor and an electric actuator in a dual drive control mode, which can choose to use either a four-rod fixed length mechanism or a five-rod variable length mechanism to regulate the tension under different working conditions. This provides a more flexible control method, increases the regulating range of fibre bundle tension, improves the system response speed and regulation accuracy, and effectively avoids the wear of fibre bundle caused by tension fluctuations.

The invention relates to the technical field of aluminum foil slitting, and discloses an aluminum foil high-precision intelligent slitting method and device based on online tension and rolling diameter cooperative control. The invention aims to solve the problems of belt breakage, notch burrs and winding defects caused by large tension fluctuation, lagging of winding diameter calculation and passive shearing in the existing aluminum foil slitting technology. High-precision digital control of the whole process is achieved, the influence of system disturbance on the ultra-thin aluminum foil is effectively eliminated, and the slitting speed, the notch flatness and the structural stability of a finished coiled material are remarkably improved. The core of the method is that a precise tension model is constructed through laser scanning and inertia identification in the starting stage, and constant tension control under the dynamic rolling diameter is achieved through a double-ring strategy in the operation process; a vacuum adsorption isolation technology is innovatively introduced to cut off tension coupling, and a cutter is matched for overspeed active shearing to optimize the trimming quality; and the rolling end adopts a taper tension and flattening strategy that the rolling diameter and the speed are cooperatively adjusted.

The invention relates to the technical field of composite material preparation, and discloses a high-load composite material telegraph pole and a pultrusion preparation method thereof.The method comprises the steps of fiber configuration, resin matrix preparation, dipping, preforming, pultrusion and aftertreatment. Wherein the proportion of fibers for direct yarn feeding accounts for a high proportion of the total mass of the fibers, the fibers are distributed in the longitudinal direction of a product, the longitudinal reinforcing effect of the telegraph pole is guaranteed, the loading capacity and mechanical strength of the product are improved, meanwhile, the tension of the fibers is controlled through a tension control system, the stability of the fibers before dipping is guaranteed, and a fiber reinforcing system is optimized; the functional additive is added, and the functional additive comprises nano silicon dioxide subjected to plasma surface treatment and a silane coupling agent, so that the uniformity and dispersity of a resin matrix are improved, the interface bonding of fibers and resin is enhanced, and the overall performance of the composite material is improved.

The invention discloses cable injection and conveying equipment for pipe cable production, which comprises a bottom frame, and a pay-off mechanism and a conveying mechanism are connected to the bottom frame; the pay-off mechanism comprises a pay-off supporting frame connected to the rotating assembly, a take-up reel clamping assembly and a take-up reel driving assembly are installed on the pay-off supporting frame, a fixed supporting frame is hinged to the top of the pay-off supporting frame, and a first wire assembly is connected to the center of the top of the fixed supporting frame; the conveying mechanism comprises a wire storage device frame hinged to the installation frame, the top of the wire storage device frame is rotationally connected with a second wire guiding assembly, and a cable conveying control assembly is installed on the wire storage device frame. The cable conveying device can be folded and is convenient to transport, torsion can be automatically eliminated through automatic rotation, shutdown for manual adjustment is not needed any more, the working efficiency is greatly improved, tension control can be conducted through the cable conveying control assembly, and therefore the conveying speed is adjusted, manual adjustment is reduced, and the cost is reduced.