239 results about "Tension control" patented technology

This utility model relates to the field of textile technology and discloses an adaptive tension control weaving machine, including a worktable. A support column is fixedly connected to the upper surface of the worktable, and a tension control component is provided on one side of the outer wall of the support column. The tension control component includes a slide rail one, which is fixedly connected to one side of the outer wall of the support column. A fixing plate two is fixedly connected to one side of the outer wall of the fixing plate two, and a spring is fixedly connected to one end of the spring. A fixing plate three is fixedly connected to one end of the spring, and a slider is fixedly connected to one side of the outer wall of the fixing plate three. The inner wall of the slider is slidably connected to one side of the outer wall of the slide rail one. In this utility model, adaptive adjustment of yarn tension is achieved. Combined with the elastic effect of the spring, the yarn position can be adjusted. The rotating plate swings according to the yarn tension under the action of the torsion spring, further enhancing the flexibility and adaptability of tension adjustment and avoiding problems such as yarn breakage or uneven weaving caused by uneven tension.

This invention discloses a motor coil winding machine, including a base, an inlet device, a conveying assembly, a cable guide assembly, a damping assembly, and a coil winding unit, with each assembly arranged sequentially along the cable conveying direction. The cable guide assembly includes a guide drum, a shaft, and a drive component. Multiple guide blocks are axially arranged inside the guide drum, and top beads are embedded in the wire passage holes of the guide blocks. An adjustable pre-tensioning structure is formed by a wire column and a spring, allowing the top beads to roll and press against the cable surface during the rotation of the guide drum, achieving dynamic straightening of the cable's bending points. The straightened cable enters the damping assembly, which consists of a pressure roller, a bearing roller, and a damper, where a stable tension is applied to the cable under the guidance of an annular groove. This invention, through the synergistic effect of the rotational straightening structure and the constant tension control structure, can stably straighten the cable before winding and maintain a constant tension, preventing cable springback or slack, and improving coil winding quality and production stability.

The present application relates to the technical field of sorting trolley, and discloses a double electric roller control method and system suitable for a sorting trolley, comprising the following steps: S1, adopting a tray gantry double-drive motion platform, installing one permanent magnet synchronous electric roller on each side of the platform, and driving the belt to run first, tension control is performed on the belt, and according to the different rotating directions of the electric roller 1 and the electric roller 2 when the upper package and the lower package, the electric roller is separately controlled, and the difference between the master motor and the slave motor is generated. The double electric roller control method and system suitable for the sorting trolley can use two small-power electric rollers to work synchronously through the control system and method, realize the consistency of the output torque, speed and position of the electric roller, and realize the stable stopping and accurate landing of the large package on the trolley tray, complete the large sorting, and has the advantages of reducing the manufacturing cost of the small-power electric roller, reducing the development cost of the large-power electric roller and reducing the mechanical cost of the trolley tray.

This invention discloses a constant speed and constant tension control method and system in a metal heat treatment process. The equipment or system of the heat treatment process includes an uncoiling device, a winding device, a heat treatment furnace, a PLC control module, and a straightening device, as well as a speed sensor and a tension sensor. The speed sensor is used to measure the linear velocity of the heat-treated material, and the tension sensor is used to measure the tension of the material during the heat treatment process. Both the uncoiling device and the winding device are equipped with an adjustable-speed rotary motor and an encoder. By applying a constant tension to the heat-treated metal material and controlling a constant linear velocity, and by designing a reasonable speed and tension fine-tuning method based on the motor transfer function, constant speed and constant tension control is achieved. This overcomes the problem of traditional metal heat treatment only controlling the motor angular velocity and ignoring the impact of linear velocity and tension fluctuations and over-limits on the performance of the metal material, resulting in more stable product performance and a higher yield.

The application provides a large-scale algal cultivation rope constant tension control device and method under variable load, comprising a bottom plate, wherein the bottom plate is provided with a first rope pulling machine for maintaining the tension of the cultivation rope during the large-scale algal harvesting process, a second rope pulling machine for simulating the load force borne by the first rope pulling machine when the cultivation rope is dragged during the large-scale algal harvesting process, and a rope unwinding machine located between the first rope pulling machine and the second rope pulling machine and used for winding the cultivation rope, and the drive motors in the first rope pulling machine and the second rope pulling machine are connected with a PLC controller; the application has the beneficial effects that: a land-based constant tension test bench system is designed, the tension of the cultivation rope with large-scale algae is kept relatively stable under the variable load state, or the dragging is automatically paused when the dragging is stuck, the sudden disappearance of the force borne by the cultivation rope is avoided, the cultivation rope is prevented from being cut off by the knife due to the vertical oscillation or being pulled off due to the excessive force, a reference basis is provided for the actual application at sea, and the safety of the large-scale algal cultivation rope during the dragging process is ensured.

The utility model relates to tension control technical field, concretely relates to a tension device, the tension device includes tension generating unit and electric control board, the tension generating unit is installed in the shell, the tension generating unit is electrically connected in electric control board, and the work is controlled by the electric control board, the electric control board is installed in the shell, and is set up in the bottom of tension generating unit, the utility model provides a tension device, sets up the electric control board in the bottom of tension generating unit, and the design and extension of electric control board are convenient.

This application relates to an integrated unwinding and take-up device and a composite current collector production system. The integrated unwinding and take-up device includes: an unwinding column, a take-up column, a guide roller, an adaptive mechanism, and a main support. The unwinding column, guide roller, take-up column, and adaptive mechanism are all arranged on the main support. The take-up column is positioned above the unwinding column, and the guide roller is positioned between the unwinding column and the take-up column. The adaptive mechanism includes a proximity pressure roller and an adjustment mechanism. The proximity pressure roller is positioned on the adjustment mechanism and is adjacent to the take-up column. The adjustment mechanism adaptively adjusts the distance between the proximity pressure roller and the outer surface of the take-up column. The substrate feeds along a path formed by the unwinding column, guide roller, proximity pressure roller, and take-up column in sequence. This device makes full use of longitudinal space, can complete the unwinding and take-up operations in an integrated manner, facilitates tension control within a limited operating space, and is easy to operate, effectively leveraging the advantages of each component mechanism in the integrated unwinding and take-up device.

A design method for a shuttle and pressure plate for stable tension control of tubular fabrics is characterized by comprising: a shuttle body, a weft tube fixing rod, a weft tube pressure plate, and a spring; the shuttle body is used to achieve the weft weaving function with stable tension, and the weft tube fixing rod and the weft tube pressure plate are arranged in its middle; the weft tube fixing rod is used to fix the weft tube, and the weft tube fixing rod is detachably fixed to the shuttle body; the weft tube pressure plate is used to provide a stable clamping force to the weft tube and the yarn on it, and the weft tube pressure plate is hinged to the shuttle body by the spring; the area where the weft tube pressure plate contacts the yarn on the outside of the weft tube is the working section, and the arc of the working section satisfies the helical equation when the weft tube pressure plate is in the initial position. This design utilizes the equiangular characteristics of the logarithmic helical surface to ensure the stability of the contact angle during the change of the weft tube radius, and then ensures the smooth and controllable torque of the pressure plate in the working section by adjusting the logarithmic helical constant.

The utility model discloses a hoist structure tension control device relates to hoisting equipment technical field, wherein, the hoist structure tension control device is applied to the chassis of automatic equipment, and is connected with the steel wire rope, and the hoist structure tension control device includes movable rod, two inductors, induction subassembly and brake subassembly, and the movable rod is worn in the chassis, and is connected with the steel wire rope, control subassembly includes two inductors, and two inductors are spaced apart and located in the chassis, induction subassembly includes induction seat, and induction seat is covered in movable rod, and is located between two inductors, wherein, two inductors are configured to detect the actual position of induction seat, and brake subassembly is connected with movable rod.

The utility model discloses a quartz fiber yarn tension adjusting device belongs to fiber yarn tension adjusting technical field, solved the problem that the mechanical structure of quartz fiber yarn tension adjusting device in traditional technology will lead to the fiber fracture if tension control is improper, it includes: the yarn and the yarn function of collecting yarn when realizing in the tension adjustment through the first drive motor of base drive's both sides roller on the base, the second drive motor drives the rotation of screw rod, and the screw rod outer cover has the thread ring, because the thread ring is fixedly connected with the slide, so the thread ring can not rotate, but because the slide is connected with the guide rail, the thread ring will replace the force transmission of drive motor and convert into the force along the guide rail direction translation on the screw rod, thereby make the slide and the compression roller frame receive the force of second drive motor, and translate on the guide rail, realize the tension elimination of quartz fiber yarn, realize adjustable effect and realize the full automatic function of the yarn, the yarn and the yarn.

The application discloses a wave compensation system and method for umbilical cable deployment of engineering ships, and belongs to the technical field of umbilical cable tension control. The system comprises a winch mechanism, a cable arrangement mechanism, a compensation mechanism and a detection and control unit. The compensation mechanism adopts a double-layer parallelogram winding structure composed of four pulleys, and the path length of the umbilical cable is changed by driving the pulley frame to move through a linear composite oil cylinder. The system adopts a hybrid compensation strategy combining passive compensation and active compensation. The passive compensation utilizes the energy storage characteristics of the accumulator to achieve rapid response to high-frequency wave disturbance, and the active compensation realizes compensation accuracy correction through feedforward control and feedback control. The controller monitors the pulley displacement and controls the winch to wind or unwind the cable when the threshold is exceeded, thereby expanding the effective compensation range of the system. The cable arrangement mechanism and the winch are synchronized to ensure that the umbilical cable is uniformly arranged on the drum. The application realizes stable umbilical cable tension in complex sea conditions, and provides a more reasonable solution for underwater deployment.

This invention discloses a tension floating roller dual-cylinder synchronous lifting mechanism, belonging to the field of printing and packaging equipment technology, and mainly applied to the roll material tension control system of roll paper rotary die-cutting machines and printing presses. Addressing the shortcomings of existing swing-arm type tension floating roller mechanisms, such as large space occupation, low control accuracy, slow response, and poor synchronization stability, this invention adopts a dual-cylinder vertical direct drive structure combined with a gear and rack mechanical synchronization mechanism to replace the traditional swing-arm structure. The mechanism includes a base, a dual-cylinder drive mechanism, a floating roller, a synchronization stabilization mechanism, a linear potentiometer, and electrical control components. Precise tension adjustment is achieved through linear potentiometer position feedback combined with PLC closed-loop control, and the horizontal lifting of the floating roller is ensured by dual mechanical and electrical synchronous control. This invention features a compact structure, good synchronization, high tension control accuracy, and fast response speed, effectively ensuring stable roll paper conveying tension and providing a reliable foundation for high-precision registration in printing and die-cutting.

This utility model discloses a yarn frame tension control mechanism for a carbon fiber spreading and warping machine, including a yarn frame and several yarn bobbins, as well as a yarn bobbin support frame, a support frame mounting base, a magnetic powder brake, and a rotating shaft. One end of the rotating shaft passes through the rotor of the magnetic powder brake and is interference-fitted to the rotor or connected via a keyway key block structure. The front cylinder of the support frame is fitted onto the other end of the rotating shaft, and the yarn bobbins are mounted on the front cylinder of the support frame. The rear cylinder of the mounting base is fitted onto the shaft body and fixedly connected to the shaft body by a first set screw. The rear cylinder of the support frame is inserted into the inner hole of the front cylinder of the mounting base, and the two are fixedly connected by a second set screw. A guide roller is provided at the unwinding point of the carbon fiber yarn on each yarn bobbin, and a pressure sensor is installed at one or both ends of the guide roller. This utility model allows each yarn bobbin to be controlled individually, enabling adjustment of the carbon fiber yarn tension at the unwinding point of each yarn bobbin, ensuring that the carbon fiber yarn tension at the unwinding point of each yarn bobbin meets the process requirements.

The present application belongs to the technical field of medical operation auxiliary, and particularly relates to a precise tension control method and system for aortic repair operation. By acquiring the edge information and repair displacement of the repair area, the present application can not only evaluate the feasibility of the repair operation, but also obtain multiple executable repair plans through simulation calculation, so that the doctor can pre-plan the best repair scheme before the operation is implemented, greatly improving the success rate and safety of the operation. At the same time, the tension parameters in the repair process can be monitored in real time during the operation, ensuring that the repair process is carried out within a safe range, preventing the repair area from being stretched or compressed excessively, avoiding surgical risks, and through precise control of tension and optimization of repair plans, the operation time is shortened, the operation efficiency is improved, and the postoperative recovery time and complication risk of the patient are reduced.

The application relates to the technical field of tension control, in particular to a weaving tension control method for high-performance metal wire mesh of a composite stand column. The path length of a weaving execution mechanism is introduced to predict a motion track, the path change amount of the metal wire in a short time is calculated in advance, the predicted elongation rate is fused with the actually measured actual elongation rate, the target tension is established in combination with the material elastic modulus and the cross-sectional area, the prediction compensation and correction are realized, the tension pre-adjustment is completed before the path change occurs, the abnormal downward trend is identified through the change rate analysis of the real-time tension, the tension reduction adaptive protection is implemented before the wire breaks, the deviation between the target tension and the actual tension is converted into a smooth pay-off speed adjusting amount through PID control, the dynamic decoupling control of the weaving process of the complex variable cross-section composite stand column is realized, the uniform stress of the wire material and the production safety are improved, and the situation that the tension is difficult to accurately control under the complex path condition is reduced.

Tension control system for a fastener in an assembly and associated control method. The present invention relates to a tension control system (10) for a fastener (12) in an assembly (36), said fastener (12) comprising a rod (14) and an assembly member (16), the control system (10) comprising: - a first measuring device (44), the first measuring device (44) being adapted to measure a first parameter representative of the time response of the rod (14) to an ultrasonic excitation, - a second measuring device (46) adapted to measure a second parameter representative of the frequency response of the rod (14) to an ultrasonic excitation, and - a calculator (48), the calculator (48) being adapted to determine a value of the tension of the rod (14) as a function of at least said first parameter and said second parameter. Figure for the abstract: Figure 1

This utility model discloses a rolling friction type edge material recycling device, comprising: a device body including a mounting base plate, an inner support side plate, an outer support side plate, and a main winding wheel. A drive motor is installed on one side of the inner support side plate, and the output end of the drive motor is connected to a rotating shaft. An inner bearing and an outer bearing are provided at the upper end of the rotating shaft. This device can solve the problems of traditional edge material recycling devices that mostly use direct winding or fixed pressure clamping, which have certain shortcomings. First, the tension control is unstable: fixed pressure or mechanical clamping can easily cause tension fluctuations when the edge material is wound, resulting in material breakage or loosening, affecting recycling efficiency. Second, the adaptability is poor: edge materials of different materials and thicknesses require different winding forces, which are difficult to adjust in traditional devices, and are prone to overstretching or loose winding. Finally, the structure is complex: some equipment relies on pneumatic or hydraulic systems to adjust the pressure, resulting in high costs and cumbersome maintenance.

The application discloses a kind of eVTOL aircraft parachute safety systems with active trigger mechanism, it is related to flight landing equipment technical field, the system includes umbrella package module, quick release module, umbrella opening trigger module, deployment induction module, impact slow-release module and attitude stability and tension control module;For electric vertical take-off and landing aircraft in emergency or emergency state Safety slow descent protection, with artificial command control and automatic fault recognition dual trigger mechanism as the core of parachute, can be triggered by artificial or system automatic trigger to complete umbrella body deployment in the critical situation such as aircraft out of control, power interruption, significantly reduce the impact load in the early stage of deployment and maintain the attitude stability during descent process.The system has the characteristics of fast response, compact structure, slow-release adjustable, strong adaptability, etc., and is suitable for the safe landing requirements of eVTOL aircraft in low-altitude operation in emergency situations such as loss of control or power failure.

This application discloses a rotor structure and a motor. The rotor structure includes a rotor core, a separator layer, and a sheath layer. The separator layer is wound around the rotor core and covers the outer peripheral surface of the rotor core. The sheath layer is wound around at least a portion of the separator layer and covers at least a portion of the outer peripheral surface of the separator layer; both the separator layer and the sheath layer are made of fibrous material. This rotor structure forms an annular sheath structure by wrapping the separator layer and the sheath layer. During the wrapping process, tension control is applied to the fibrous material, so that the annular sheath structure forms compressive stress on the surface of the rotor core, giving the rotor core a certain prestress. This allows the core to resist greater centrifugal force, increasing the rotor's maximum operating speed. Simultaneously, the separator layer protects the outer sheath layer, preventing burrs on the rotor core from damaging the sheath layer, thus ensuring the functional stability of the rotor structure.

This utility model discloses a pull-wire structure for a medical catheter, including a pull-wire frame, multiple sets of guide roller mechanisms, a roller body clamping mechanism, and a stabilizing mechanism. The multiple sets of guide roller mechanisms include a rotating frame and a bottom roller. The roller body clamping mechanism includes a clamping tube and a clamping rod. The stabilizing mechanism includes a bottom ball ring and a connecting plate. Through the coordinated action of the rotating frame, bottom roller, rotating roller, and fixed roller, precise positioning and tension control of the medical catheter are achieved. The rotating frame is symmetrically installed on both sides of the pull-wire frame and can be rotated and adjusted. It works with a limiting turntable to limit the rotation range and prevent excessive deformation of the catheter. The roller body clamping mechanism adopts a clamping tube and clamping rod design, which realizes quick and convenient installation and disassembly. The combination of the rotating sleeve, the rotating insert block, and the rotating push spring forms a self-locking mechanism. The rotating push spring pushes the rotating insert block into the groove on the side wall of the clamping rod to ensure a firm connection. The clamping rod can pass through different adjustment holes, providing multiple installation position options and enhancing the adaptability of the device.

This invention relates to the field of auxiliary equipment technology for fully automatic winding machines, and more particularly to a guide wheel anti-deviation component for fully automatic winding machines, including an anti-deviation structure installed on the winding machine body. This component uses a servo motor and screw transmission mechanism built into the vertical swing arm to drive the connecting moving block and the horizontal swing arm, achieving active lifting and lowering adjustment of the guide wheel, forming a high-response, low-hysteresis active tension control system. The guide wheel shaft integrates a miniature tension sensor, which can provide real-time feedback on wire tension. Combined with the servo motor, it achieves closed-loop precise control, effectively suppressing tension fluctuations and wire deviation during high-speed winding. Furthermore, the horizontal swing arm is connected to the slider via a T-shaped slide rail, and the slider is equipped with a screw locking structure, facilitating flexible adjustment of the guide wheel's horizontal position to adapt to different wire specifications and winding process requirements. This invention combines rapid response, precise control, and good adaptability, significantly improving the stability of winding tension and the quality of the finished winding product.

The utility model relates to filter membrane preparation equipment technical field, concretely to a kind of multilayer nanofiber filter membrane superposition assembly device, through the cooperative mechanism of layered precision membrane feeding, whole course tension control, multi-section superposition press and low-temperature heating fusion, the automation, high-precision superposition of different function nanofiber membrane is realized, rack is fixed base, and layered rotating groove of front end U type bearing frame is used to load nanofiber membrane roll of different function, at least three groups layered conveying module are vertically arranged along rack height, ensure that multilayer film material is synchronously conveyed to downstream. Guiding roller and lower roller of tension unit form tension adjusting structure, maintain film material tension stable, avoid tearing or wrinkle, first group of superposition platform preliminary press and eliminate interlayer gap, middle heating box provides low-temperature heating to promote interlayer nanofiber physical fusion, second group of superposition platform carries out secondary press, and strengthens interlayer bonding strength.

This application discloses a device and method for removing the glass cladding layer from amorphous alloy wire, relating to the field of amorphous alloy material processing technology. The device includes: unwinding and winding the amorphous alloy wire using a substrate unwinding assembly and a substrate winding assembly; monitoring the tension value of the amorphous alloy wire during transmission in real time using a tension control assembly to prevent breakage; clamping the amorphous alloy wire using an ultrasonic crushing assembly to generate ultrasonic vibration signals; collecting glass slag generated from the crushing of the amorphous alloy wire using a negative pressure collection assembly; cleaning the amorphous alloy wire using a multi-stage cleaning assembly; and finally, identifying whether there is glass residue in the cleaned amorphous alloy wire and performing a quality judgment using an online detection assembly. The entire process is controlled by a system control unit, automatically removing the glass cladding layer from the amorphous alloy wire. This application avoids chemical corrosion, does not damage the wire itself, and reduces the difficulty of process control.

This application relates to the field of copper wire drawing technology, and particularly to a method for compensating for the implicit resistance of guide wheels in copper wire drawing machines, and the copper wire drawing machine itself. The method includes: acquiring a tension signal and a set of rotational speed signals; calculating the dynamic friction coefficient of each first-type guide wheel using Fourier transform based on the tension signal, the set of rotational speed signals, and the wrap angle of each first-type guide wheel, obtaining a set of dynamic friction coefficients; determining the smooth friction coefficient of each first-type guide wheel based on the set of dynamic friction coefficients, obtaining a set of smooth friction coefficients; determining that compensation conditions are met, and determining tension compensation based on the set of smooth friction coefficients; determining feedforward compensation based on the tension compensation, and generating a compensation command based on the feedforward compensation; and controlling the output torque of the traction device based on the compensation command. This method achieves online identification and quantification of the friction state of key guide wheels, reduces tension control lag, and improves the real-time performance of tension control.

The utility model belongs to adhesive tape slitting device technical field, concretely is a kind of adhesive tape production coiling slitting device, including workbench;The top of the workbench is erected with unwinding mechanism;The top of the workbench is equipped with slitting mechanism;The top of the workbench is erected with winding mechanism;The top of the workbench is equipped with guide mechanism;The top of the winding mechanism is equipped with meter mechanism;The top of the guide mechanism is equipped with tension adjusting mechanism;Through the structural setting of guide mechanism and slitting mechanism, it is realized that accurate cutter adjustment and tension control can be realized, the high-precision control of adhesive tape slitting width is realized, the edge of adhesive tape after slitting is neat, has burr, quality is good, high-speed slitting can be realized, the efficiency of adhesive tape production is greatly improved, to meet the demand of large-scale production.

This invention discloses an automatic feeding tension control device for rag sewing, comprising a rag feeding tension control device, a drive mechanism, and a tensioning mechanism. The drive mechanism includes modules A and B. Module A has two ends of a double-headed hydraulic cylinder fitted into two horizontally positioned movable slots. Module A has a connecting slot at its bottom center. Module B has a centrally located hydraulic cylinder with its push shaft end fitted into the connecting slot at the bottom center of module A. Module B has a pressure sensor at its bottom center. The tensioning mechanism has tension adjustment belts installed in two tension adjustment belt mounting slots below the upper and lower pressure rods. This rag feeding tension control device has a simple structure and can not only press and feed the fabric but also tension it, ensuring the flat conveying of the rag for sewing. It can also automatically control the tension of the fabric based on its elasticity.

The utility model belongs to the technical field of special equipment for ceramic capacitor manufacturing, specifically relates to a winding tension control system and a casting machine for multilayer ceramic capacitor manufacturing. The winding tension control system comprises a feeding roller shaft, a rotating part rotatable around its central shaft and coaxially fixedly connected with the feeding roller shaft, an adjusting belt provided along the outer edge of the rotating part and having a fixed end and a movable end, and a driving part connected to the movable end of the adjusting belt for providing a pushing and pulling force. The wrapping angle of the adjusting belt on the rotating part is less than 360 degrees. The rotating part can rotate synchronously with the feeding roller shaft. The driving part can generate a pushing and pulling force to change the tightness of the adjusting belt on the rotating part, thereby adjusting the rotating speed of the feeding roller shaft to make the tightness of the carrier film appropriate, and the carrier film tightness adjustment can be completed more quickly and conveniently. The casting machine for multilayer ceramic capacitor manufacturing comprises the aforementioned winding tension control system.

This invention belongs to the field of cable winch technology and discloses a self-buffered braking cable winch, including a control base, a tension-adaptive adjustment winding and unwinding mechanism, a follow-up cable laying mechanism, a follow-up pressing mechanism, and a bidirectional check mechanism. The tension-adaptive adjustment winding and unwinding mechanism includes a winding and unwinding assembly, a diameter-changing assembly, and a tension control assembly. The bidirectional check mechanism is installed on the front and rear sides of the control base and connected to the winding and unwinding assembly. Through this method, the diameter-changing assembly expands outward according to the number of turns of the cable winding and unwinding, providing outward tension to the inner coil of cable on the diameter-changing assembly. This ensures that the inner and outer coils of cable are tightly attached, preventing insufficient cable tension during winding and unwinding, which could cause the inner coil of cable to slip. Furthermore, the transverse pressing assembly provides pressing force to both the inner and outer coils of the cable roll, further improving the quality of cable winding and unwinding.