A high-precision wire rod conveying method based on double-wheel wire feeding

Abstract

The application discloses a high-precision wire rod conveying method based on double-wheel wire feeding, which executes the following steps through an integrated control system: initializing parameters such as target tension and twist pitch; starting a double-twisting machine host and synchronously driving a plurality of wire feeding devices to rotate; in the wire feeding process, real-time tension closed-loop control and rotation synchronous control are performed to maintain constant wire feeding tension and uniform twisting; meanwhile, the wire feeding state is monitored in real time, and graded protection logic is triggered based on wire breakage or tension abnormality; and the method is combined with a wire feeding device with a rotating wire feeding device. The application realizes constant tension and high-synchronous-precision conveying under the condition of dynamic rotating wire feeding, significantly improves the stability of double-twisting machine production and the quality of wire rod products, and reduces the wire breakage rate and the requirement for auxiliary equipment.

Description

Technical Field

[0001] This invention patent relates to the field of production equipment technology for linear products, and more specifically, to a high-precision wire feeding method based on dual-wheel wire feeding. Background Technology

[0002] Double twisting machines are crucial in the manufacturing of wires such as steel wire ropes and cables, and their production quality is highly dependent on the stability and precision of the wire supply.

[0003] Traditional wire feeding methods often employ multiple independent pay-off frames with simple mechanical tension devices. These methods lack effective synchronized rotation and precise tension control before the wire strands are fed into the twisting machine. This results in large tension fluctuations and inconsistent strand tightness during twisting, easily leading to uneven twist pitch and wire breakage, severely impacting the strength and consistency of the final product. While some wire feeding devices with rotary pay-off functions exist, such as the structure disclosed in CN115559143B, their tension adjustment relies primarily on mechanical adaptive mechanisms, resulting in slow response, limited accuracy, and a lack of systematic electronic control logic for integrated, intelligent closed-loop management of the rotational synchronization, dynamic tension balance, and abnormal states of each pay-off unit. This makes it difficult to meet the high precision and stability requirements of modern high-performance wire production. Summary of the Invention

[0004] In view of this, the present invention proposes a high-precision wire feeding method based on a dual-wheel wire feeding system. The dual-wheel wire feeding system includes a power base and multiple driveable rotatable wire feeding devices. The method is executed by a control system integrated into the wire feeding system and includes the following steps: S1: Initialize control parameters, including target tension value, target twist pitch, synchronous speed ratio, and initial unwinding diameter; S2: Start the dual-twisting machine main unit and, according to the synchronous speed ratio, control the power motor on the power base to drive all the wire feeding devices to rotate synchronously. At the same time, activate the tension adjustment mechanism to apply preload to the wire drawn from the wire feeding devices; S3: During the wire feeding process, monitor and adjust the actual tension of the wire in real time to make it dynamically approach and stabilize near the target tension value. At the same time, monitor and adjust the rotation phase or speed of each wire feeding device in real time to keep it synchronized with the take-up movement of the dual-twisting machine main unit; S4: Monitor the wire output status of each wire feeding device in real time. If a wire break or abnormal tension is detected, trigger the corresponding alarm or shutdown protection logic.

[0005] Furthermore, the real-time monitoring and adjustment of the actual tension of the wire in step S3 includes: acquiring a tension feedback signal through a tension sensor installed on the wire supply path; comparing the tension feedback signal with the target tension value to generate a tension error signal; and calculating a control quantity based on the tension error signal using a preset closed-loop control algorithm, and outputting it to the tension adjustment mechanism to adjust its force on the wire.

[0006] Furthermore, the tension adjustment mechanism includes a mechanical adaptive adjustment unit and an electronically controlled active adjustment unit; the mechanical adaptive adjustment unit is a tension adjustment component on the wire feeding device, comprising a movable rod and an elastic element; the electronically controlled active adjustment unit is an adjustment wheel or brake installed on the wire feeding path and driven by a servo motor or magnetic powder brake; the output of the closed-loop control algorithm is preferentially applied to the electronically controlled active adjustment unit, and the mechanical adaptive adjustment unit serves as a buffer and coarse adjustment aid.

[0007] Furthermore, the real-time monitoring and adjustment of the rotation phase or speed of each pay-off device in step S3 includes: using the encoder signal of the take-up shaft of the double twisting machine as the main speed reference; calculating the theoretical rotation speed of the pay-off device based on the target twist pitch and the current linear speed; controlling the power motor to run at the theoretical rotation speed, and performing speed closed-loop correction through encoder feedback installed on the rotating shaft of the power motor or pay-off device to ensure that the rotation speeds of multiple pay-off devices are strictly synchronized.

[0008] Furthermore, the control system also performs a roll diameter dynamic compensation step: calculating in real time or detecting the current diameter of the roll on the pay-off device through sensors; and dynamically adjusting the parameters of the pay-off speed of the pay-off device or the tension adjustment mechanism based on the change of the current diameter to compensate for the pay-off inertia and tension fluctuations caused by the change in roll diameter.

[0009] Furthermore, the real-time monitoring of the output status of each wire feeding device in step S4 includes: setting a photoelectric sensor or ultrasonic sensor as a detection head on the output path of each wire feeding device; when the detection head does not detect the wire passing through within a preset time threshold, it is determined that a wire break has occurred in the path, and a wire break alarm signal and workstation identifier are generated.

[0010] Furthermore, the shutdown protection logic includes a graded response strategy: when a single path break is detected, the control system records the station information and issues an audible and visual alarm, but the double twisting machine host and the wire supply equipment can continue to operate at reduced speed; when multiple paths break simultaneously or the tension exceeds the safety threshold, the control system immediately issues an emergency stop command to the double twisting machine host and the power motor.

[0011] Furthermore, the control system is a programmable logic controller or an industrial computer; the control parameters are set, stored, and retrieved through a human-machine interface to form a process parameter library for different wire specifications.

[0012] Furthermore, the synchronization speed ratio is set according to the twist pitch requirement of the target product, so that the rotational speed N of the pay-off device and the linear speed V of the double twisting machine main unit satisfy the relationship: N=kV / P, where P is the twist pitch and k is the process correction coefficient.

[0013] On the other hand, this application also provides a double twisting machine wire feeding system, the system including a control system as defined by any of the above methods, the control system being electrically connected to the power motor, tension adjustment mechanism and various sensors of the wire feeding device.

[0014] Compared with the prior art, the beneficial effects of the present invention are as follows: 1. By combining mechanical adaptive tension adjustment with electronic active adjustment and introducing a real-time closed-loop control algorithm, it can dynamically compensate for tension fluctuations caused by unwinding rotation and changes in roll diameter, ensuring high tension stability throughout the entire process from unwinding to exiting the roll, thus fundamentally improving the twisting quality. 2. Based on the speed of the double twisting machine main unit, the speed and phase closed-loop control precisely drives all the wire feeding devices to rotate synchronously, ensuring the uniformity and consistency of twisting of multi-strand wires, which is conducive to obtaining the preset ideal twist pitch; 3. It integrates wire breakage detection, abnormal tension monitoring, and graded alarm shutdown logic, realizing real-time monitoring of the production process and rapid fault response, reducing unplanned downtime and scrap rate, and improving the overall efficiency of the equipment. Attached Figure Description

[0015] Various other advantages and benefits will become apparent to those skilled in the art upon reading the following detailed description of preferred embodiments. The accompanying drawings are for illustrative purposes only and are not intended to limit the invention. Furthermore, the same reference numerals denote the same parts throughout the drawings. In the drawings: Figure 1 The overall flowchart of the high-precision wire feeding method based on dual-wheel wire feeding provided in the embodiments of the present invention is shown. Detailed Implementation

[0016] Exemplary embodiments of the present disclosure will now be described in more detail with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be implemented in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided to enable a more thorough understanding of the present disclosure and to fully convey the scope of the disclosure to those skilled in the art. It should be noted that, unless otherwise specified, embodiments and features in the embodiments of the present invention can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0017] This invention is based on the equipment structure of a prior Chinese invention patent (patent number: CN115559143B, patent title: A wire feeding device for a double twisting machine). The prior application discloses the core structure of a double-wheel wire feeding device, including a power base, multiple sets of rotatable wire feeding devices, a tension adjusting element, a synchronous transmission mechanism, and a wire guide structure. The high-precision feeding method of this invention is directly compatible with the equipment structure of the prior application. The technical features of the prior application, such as the circumferential distribution layout of the wire feeding device, the dual elastic element tension adjusting mechanism, the synchronous wheel-synchronous belt transmission structure, and the double-wheel guide structure with the wire threading drum and guide wheel, are incorporated herein by reference.

[0018] The specific connection relationships are as follows: The dual-wheel wire supply mechanism in the method directly relies on the dual-wheel structure of the wire guide wheel and the wire guide wheel built into the wire-threading cylinder in the prior application, combined with the figure-eight winding method of the wire between the first winding shaft and the second winding shaft, to form a foundation for tension enhancement; The tension adjustment logic in the method is fully matched with the tension adjustment components in the prior application, including the movable rod, the first winding shaft, the second winding shaft, and the dual elastic components such as L-shaped blocks, springs, and pull rod structures, and enhances the accuracy of mechanical adaptive adjustment through electronic control logic; The synchronous drive logic in the method is based on the transmission structure of the power motor, synchronous wheel, synchronous belt, and tensioning component in the prior application, and achieves precise synchronization of multiple wire-feeding devices through speed feedback and phase calibration; The wire routing monitoring and guiding logic in the method corresponds to the wire exit guide components in the prior application, specifically including the support plate, wire guide wheel, wire coil, detection head, wire exit cylinder, and wire exit guide wheel structure, ensuring the accuracy and status of wire routing can be monitored.

[0019] This embodiment focuses on describing the high-precision control method and implementation process adapted to this device.

[0020] Please see Figure 1 As can be seen, this embodiment provides a high-precision wire feeding method based on dual-wheel wire feeding. The method is executed by a control system integrated into the wire feeding equipment, including the following steps: S1: Initialize control parameters, including target tension value, target twist pitch, synchronous speed ratio, and initial unwinding diameter; S2: Start the dual-twisting machine host, and according to the synchronous speed ratio, control the power motor on the power base to drive all the wire feeding devices to rotate synchronously. At the same time, start the tension adjustment mechanism to apply pre-tension to the wire drawn from the wire feeding device; S3: During the wire feeding process, monitor and adjust the actual tension of the wire in real time, so that it dynamically approaches and stabilizes near the target tension value; at the same time, monitor and adjust the rotation phase or speed of each wire feeding device in real time, so that it keeps synchronized with the winding movement of the dual-twisting machine host; S4: Monitor the wire output status of each wire feeding device in real time. If a wire break or abnormal tension is detected, trigger the corresponding alarm or shutdown protection logic.

[0021] This embodiment takes the double-twisting processing of high-strength steel wire as an example to describe in detail the high-precision wire feeding method based on double-wheel wire feeding of the present invention. The control system adopted includes a programmable logic controller (PLC) and a human-machine interface. Various sensors, actuators and PLC are connected through bus communication to realize signal acquisition and command issuance. The overall equipment includes 7 wire feeding devices and adopts a double-wheel guide and figure-eight winding tension enhancement mechanism.

[0022] Therefore, by calling the preset high-strength steel wire process parameter library through the human-machine interface, the following control parameters are initialized: The target tension value is set according to the tensile strength, wire diameter, and double-twisting machine processing requirements, with an allowable error range of ±0.02N; the target lay length is determined based on the final steel wire rope product's lay length design requirements; the lay length is set based on the formula N=kV / P, where k is the process correction coefficient, calibrated according to on-site processing experience; V is the double-twisting machine's main winding speed; and P is the target lay length, calculating the synchronous speed ratio; this is set as the ratio between the unwinding device's rotation speed and the main winding speed; the initial unwinding diameter is determined and entered into the system after manual measurement or automatic sensor detection of the maximum outer diameter of the coil. Simultaneously, auxiliary parameters are initialized: tension sampling period 10ms, wire breakage detection time threshold 50ms, and tension safety threshold set to ±50% of the target tension value.

[0023] The specific workflow for equipment startup and synchronous drive is as follows: The operator issues a start command through the control panel of the double twisting machine. The main take-up shaft starts running at a set speed. At the same time, the main controller sends the encoder signal of the take-up shaft to the PLC of the wire feeding equipment as the main speed reference. The PLC of the wire feeding equipment outputs a pulse command according to the synchronous speed ratio to control the servo motor on the power base to start. Through the transmission cooperation of the synchronous pulley and the synchronous belt, the left threading drum of the 7 wire feeding devices rotates synchronously. In the initial startup stage, a ramp speed-up mode is adopted to increase the speed of the wire feeding device to the theoretical value within a set time. At the same time, the tension adjustment mechanism is activated. The preload of the elastic element in the mechanical adaptive adjustment unit is adjusted to the preset initial value through the pull rod. The electronic control active adjustment unit applies the initial braking torque, which together applies the preload to the steel wire drawn from the wire feeding device, so that the initial tension of the steel wire reaches 70% of the target tension value.

[0024] Specifically, the real-time monitoring and adjustment of the actual tension of the wire in step S3 includes: acquiring a tension feedback signal through a tension sensor installed on the wire supply path; comparing the tension feedback signal with the target tension value to generate a tension error signal; and calculating a control quantity based on the tension error signal using a preset closed-loop control algorithm and outputting it to the tension adjustment mechanism to adjust its force on the wire.

[0025] The tension adjustment mechanism includes a mechanical adaptive adjustment unit and an electronically controlled active adjustment unit; the mechanical adaptive adjustment unit is a tension adjustment component on the wire feeding device, comprising a movable rod and an elastic element; the electronically controlled active adjustment unit is an adjustment wheel or brake installed on the wire feeding path and driven by a servo motor or magnetic powder brake; the output of the closed-loop control algorithm is preferentially applied to the electronically controlled active adjustment unit, and the mechanical adaptive adjustment unit serves as a buffer and coarse adjustment aid.

[0026] The real-time monitoring and adjustment of the rotation phase or speed of each pay-off device in step S3 includes: using the encoder signal of the take-up shaft of the double twisting machine as the main speed reference; calculating the theoretical rotation speed of the pay-off device based on the target twist pitch and the current linear speed; controlling the power motor to run at the theoretical rotation speed; and performing speed closed-loop correction through encoder feedback installed on the rotating shaft of the power motor or pay-off device to ensure that the rotation speeds of multiple pay-off devices are strictly synchronized.

[0027] Therefore, the specific process of tension closed-loop regulation is as follows: tension sensors are installed on the output path of each wire feeding device to collect the actual tension signal of the steel wire in real time, and the data is uploaded to the PLC according to the set sampling period; the PLC compares the collected actual tension value with the target tension value to generate a tension error signal; the error signal is processed by a PID closed-loop control algorithm, and the algorithm output control quantity is preferentially applied to the electronic control active adjustment unit to correct the tension by adjusting the braking torque: when the tension is insufficient, the PLC controls the electronic control active adjustment unit to reduce the braking torque so that the actual tension rises back to the target value; when the tension is too high, the PLC controls the electronic control active adjustment unit to increase the braking torque so that the actual tension falls back to the target value.

[0028] The movable rod and elastic element of the mechanical adaptive adjustment unit serve as a buffer and coarse adjustment aid. When the tension of the steel wire fluctuates, the movable rod deflects with the change in tension. The deflection angle is detected by a displacement sensor. When the deflection angle exceeds the set threshold, the PLC adjusts the preload of the elastic element to ensure the stability and rapid response of the tension adjustment, and ultimately stabilizes the actual tension of the steel wire within the range of ±0.02N of the target tension value.

[0029] The specific process of rotation synchronization adjustment is as follows: taking the encoder signal of the take-up shaft of the double twisting machine as a reference, the PLC calculates the actual take-up speed of the main machine in real time. When the take-up speed of the main machine fluctuates within the set range due to load changes, the theoretical rotation speed of the pay-off device is adjusted synchronously.

[0030] An encoder is installed on the left end of the threading drum shaft of each wire feeding device to collect the actual rotation speed of each wire feeding device in real time. The PLC compares the rotation speed of all wire feeding devices with the theoretical rotation speed. When the rotation speed error of a certain wire feeding device exceeds the allowable threshold, the output torque of the power motor is adjusted by PWM modulation, or the synchronous belt tension of the corresponding wire feeding device is adjusted to drive the tensioning wheel to move through the electric tensioning component, so as to ensure that the rotation speed consistency error of all wire feeding devices is ≤ ±1 rpm.

[0031] The rotation phase of each wire feeding device is calibrated according to a set cycle. Taking one wire feeding device as a reference, the phase difference of other wire feeding devices is detected by the encoder. When the phase difference exceeds the set threshold, the PLC fine-tunes the drive pulse of the corresponding wire feeding device to keep the rotation phase of each wire feeding device synchronized and avoid uneven twisting of multiple strands of steel wire.

[0032] The specific process of dynamic diameter compensation is as follows: An ultrasonic sensor is installed on one side of the wire feeding device to detect the current diameter of the wire roll in real time and update the detection data according to a set cycle; the control parameters are dynamically adjusted according to the change in the current diameter of the wire roll: when the wire roll diameter decreases from the initial value to the first set value, due to the decrease in wire feeding inertia, the PLC controls the speed of the wire feeding device to be appropriately reduced, and at the same time, the initial braking torque of the electronic control active adjustment unit is reduced to compensate for the tension fluctuation caused by the change in wire roll diameter; when the wire roll diameter further decreases to the second set value, the speed of the wire feeding device and the initial braking torque of the electronic control active adjustment unit are further fine-tuned to ensure the tension is stable throughout the process.

[0033] Specifically, step S4, which involves real-time monitoring of the wire output status of each wire feeding device, includes: setting up photoelectric sensors or ultrasonic sensors as detection heads on the wire output path of each wire feeding device; when the detection head does not detect wire passing through within a preset time threshold, it is determined that a wire break has occurred on that path, and a wire break alarm signal and workstation identifier are generated. The shutdown protection logic includes a graded response strategy: when a single path wire break is detected, the control system records the workstation information and issues an audible and visual alarm, but the double twisting machine host and wire feeding equipment can continue to operate at reduced speed; when multiple paths are simultaneously broken or the tension exceeds the safety threshold, the control system immediately issues an emergency stop command to the double twisting machine host and the power motor.

[0034] Therefore, the specific process of status monitoring is as follows: A photoelectric sensor is installed as a detection head on the guide plate of each wire feeding device to monitor whether the wire passes through in real time. When the detection head does not detect a wire reflection signal within a preset time threshold, it is determined that a wire break has occurred on the path. The PLC immediately records the station number and generates a wire break alarm signal. The PLC also determines in real time whether the actual tension value collected by the tension sensor exceeds the safety threshold. When the actual tension remains below the lower limit of the safety threshold or above the upper limit of the safety threshold for a set time, it is determined to be a tension abnormality, generating a tension abnormality alarm signal and recording the time of the abnormality, the station, and the tension value.

[0035] When a single wire breakage is detected, the PLC controls the audible and visual alarm to emit intermittent alarm sounds. At the same time, the human-machine interface displays the broken wire station number, the take-up speed of the double twisting machine is reduced by a set ratio, and the wire supply equipment maintains the normal operation of other wire feeding devices, making it convenient for operators to replace the wire reel or troubleshoot the fault in a timely manner. When two or more wire breaks are detected simultaneously, or the tension of a certain path exceeds the safety threshold for a set period of time, the PLC immediately issues an emergency stop command to the power motors of the double twisting machine and the wire supply equipment, and at the same time cuts off the power supply to the electronic control active adjustment unit. The audible and visual alarm emits continuous alarm sounds to prevent product scrapping or equipment damage caused by the imbalance of tension of multiple strands of steel wire.

[0036] Specifically, the control system is a programmable logic controller or an industrial computer; the control parameters are set, stored and retrieved through a human-machine interface to form a process parameter library for different wire specifications.

[0037] Therefore, after each wire feeding operation, the PLC automatically stores key data from the run, including tension fluctuation curves, speed synchronization errors, coil diameter change trends, and abnormal event records. Operators can view historical data through the human-machine interface. Once a set number of coils of the same wire specification has been processed, the PLC automatically optimizes the PID parameters and process correction coefficients in the process parameter library based on statistical analysis, further improving subsequent wire feeding accuracy. When switching to other wire specifications, operators can directly access the corresponding process parameter library through the human-machine interface without manual resetting, ensuring rapid switching and high-precision feeding of different wire specifications.

[0038] Those skilled in the art will understand that embodiments of this application can be provided as methods, systems, or computer program goods. Therefore, this application can take the form of a completely hardware embodiment, a completely software embodiment, or an embodiment combining software and hardware aspects. Furthermore, this application can take the form of a computer program goods embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, etc.) containing computer-usable program code.

[0039] This application is described with reference to flowchart illustrations and / or block diagrams of methods, apparatus (systems), and computer program goods according to embodiments of this application. It will be understood that each block of the flowchart illustrations and / or block diagrams, and combinations of blocks in the flowchart illustrations and / or block diagrams, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, special-purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, generate instructions for implementing the flowchart... Figure 1 One or more processes and / or boxes Figure 1 A device that provides the functions specified in one or more boxes.

[0040] These computer program instructions may also be stored in a computer-readable storage medium that can direct a computer or other programmable data processing device to function in a particular manner, such that the instructions stored in the computer-readable storage medium produce an article of manufacture including instruction means, which are implemented in a process Figure 1 One or more processes and / or boxes Figure 1 The function specified in one or more boxes.

[0041] These computer program instructions can also be loaded onto a computer or other programmable data processing equipment to cause a series of operational steps to be performed on the computer or other programmable equipment to produce a computer-implemented process, thereby providing instructions that execute on the computer or other programmable equipment for implementing the process. Figure 1 One or more processes and / or boxes Figure 1 The steps of the function specified in one or more boxes.

[0042] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and not to limit it. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art should understand that modifications or equivalent substitutions can still be made to the specific implementation of the present invention. Any modifications or equivalent substitutions that do not depart from the spirit and scope of the present invention should be covered within the scope of protection of the claims of the present invention.

Claims

1. A high-precision wire feeding method based on dual-wheel wire feeding, wherein the dual-wheel wire feeding equipment includes a power base and multiple driveable rotatable wire feeding devices, characterized in that, The method is executed by a control system integrated into the power supply equipment, and includes the following steps: S1: Initialize control parameters, including target tension value, target twist pitch, synchronous speed ratio and initial unwinding diameter; S2: Start the double twisting machine main unit, and according to the synchronous speed ratio, control the power motor on the power base to drive all the wire feeding devices to rotate synchronously. At the same time, start the tension adjustment mechanism to apply pre-tension to the wire drawn from the wire feeding device. S3: During the wire feeding process, the actual tension of the wire is monitored and adjusted in real time to make it dynamically approach and stabilize near the target tension value; at the same time, the rotation phase or speed of each wire feeding device is monitored and adjusted in real time to keep it synchronized with the take-up movement of the double twisting machine main unit. S4: Monitor the output status of each wire feeding device in real time. If a broken wire or abnormal tension is detected, trigger the corresponding alarm or shutdown protection logic.

2. The high-precision wire feeding method based on dual-wheel feeding as described in claim 1, characterized in that, The real-time monitoring and adjustment of the actual tension of the wire in step S3 includes: Tension feedback signals are obtained by tension sensors installed on the supply path; The tension feedback signal is compared with the target tension value to generate a tension error signal; Based on the tension error signal, a control quantity is calculated using a preset closed-loop control algorithm and output to the tension adjustment mechanism to adjust its force on the wire.

3. The high-precision wire feeding method based on dual-wheel feeding as described in claim 2, characterized in that, The tension adjustment mechanism includes a mechanical adaptive adjustment unit and an electronically controlled active adjustment unit; the mechanical adaptive adjustment unit is a tension adjustment component on the wire feeding device that includes a movable rod and an elastic element; The electronically controlled active adjustment unit is an adjustment wheel or brake that is installed on the supply path and driven by a servo motor or magnetic powder brake; the output of the closed-loop control algorithm is preferentially applied to the electronically controlled active adjustment unit, and the mechanical adaptive adjustment unit serves as a buffer and coarse adjustment aid.

4. The high-precision wire feeding method based on dual-wheel feeding as described in claim 1, characterized in that, The real-time monitoring and adjustment of the rotation phase or speed of each wire feeding device in step S3 includes: The encoder signal of the take-up shaft of the double twisting machine main unit is used as the main speed reference; Calculate the theoretical rotational speed of the pay-off device based on the target twist pitch and the current linear velocity; The power motor is controlled to run at the theoretical rotational speed, and speed closed-loop correction is performed through the encoder feedback installed on the rotating shaft of the power motor or the wire feeding device to ensure that the rotational speeds of multiple wire feeding devices are strictly synchronized.

5. The high-precision wire feeding method based on dual-wheel feeding as described in claim 1 or 4, characterized in that, The control system also performs a dynamic roll diameter compensation step: The current diameter of the winding on the pay-off device is calculated in real time or detected by sensors. Based on the change in the current diameter, the parameters of the wire feeding device or the tension adjustment mechanism are dynamically adjusted to compensate for the wire feeding inertia and tension fluctuations caused by the change in the roll diameter.

6. The high-precision wire feeding method based on dual-wheel feeding as described in claim 1, characterized in that, The real-time monitoring of the wire output status of each wire feeding device in step S4 includes: Photoelectric sensors or ultrasonic sensors are installed as detection heads on the output path of each wire feeding device. When the detection head does not detect the wire passing through within a preset time threshold, it determines that the path has been broken and generates a broken wire alarm signal and workstation identifier.

7. The high-precision wire feeding method based on dual-wheel feeding as described in claim 6, characterized in that, The shutdown protection logic includes a tiered response strategy: When a single-path break is detected, the control system records the station information and issues an audible and visual alarm, but the double twisting machine host and the wire supply equipment can continue to operate at a reduced speed. When multiple paths are simultaneously broken or the tension exceeds the safety threshold, the control system immediately issues an emergency stop command to the main body of the double twisting machine and the power motor.

8. The high-precision wire feeding method based on dual-wheel feeding as described in claim 1, characterized in that, The control system is a programmable logic controller or an industrial computer; the control parameters are set, stored and recalled through a human-machine interface to form a process parameter library for different wire specifications.

9. The high-precision wire feeding method based on dual-wheel feeding as described in claim 1, characterized in that, The synchronization speed ratio is set according to the twist pitch requirements of the target product, so that the rotational speed N of the pay-off device and the linear speed V of the double twisting machine main unit satisfy the relationship: N=kV / P, where: P is the twist pitch in mm; V is in m / min; N is in r / min; and k is the process correction coefficient.

10. A double-twisting machine wire feeding system, characterized in that, The system includes a control system for performing the method of any one of claims 1-9, the control system being electrically connected to the power motor, tension adjustment mechanism and various sensors of the wire supply equipment.

Images