Wire arrangement control system and control method for steel cord take-up

Abstract

The invention relates to the technical field of steel cord winding, in particular to a winding displacement control system and method for steel cord winding, and the system comprises an I-shaped wheel which is used for winding a steel cord, and the two ends of a winding shaft of the I-shaped wheel are respectively defined as a first limit position and a second limit position; the lead screw structure is arranged above the spool, a wire arranging device is arranged on the lead screw structure, and when the lead screw structure is driven to rotate, the wire arranging device can move along the axis of the lead screw structure, so that the wire arranging device moves between a first limit position and a second limit position of the spool. The diameter measuring device is arranged to obtain the actual outer diameter of the spool in real time, the actual outer diameter serves as feedback input of the controller, the winding rotating speed and the wire arranging speed are dynamically adjusted, the closed-loop control enables the control reference of the system to be synchronous with the physical winding diameter all the time, and therefore progressive error accumulation caused by mismatching of theoretical models is fundamentally eliminated.

Description

Technical Field

[0001] This invention relates to the field of steel cord winding technology, and more specifically to a steel cord winding control system and control method. Background Technology

[0002] In the production of steel cord, winding is one of the key processes that determines the final product's shape and quality. The main task of winding is to neatly and tightly wind the continuously produced steel cord onto a reel, forming a stable and uniformly dense coil. This process not only affects the product's appearance and stability during transportation and storage, but also directly relates to the performance and production efficiency of downstream users (such as tire and rubber product manufacturers).

[0003] As downstream industries demand higher single-coil lengths and load-bearing capacities for steel cord, large-size, high-capacity I-beam reels are increasingly used in production lines. These I-beam reels have larger cylinder diameters and wider winding widths, enabling them to carry longer steel cords, reduce reel-changing frequency, and improve production continuity.

[0004] Currently, the industry generally pursues tightness and neatness of the coil when winding steel cord. However, in actual mass production, it has been found that even with consistent equipment parameter settings, the quality of the final coil may gradually deteriorate as the number of winding layers on the large-size I-beam reel increases. For example, after winding multiple layers, uneven winding pitch, gaps between coils, or local overlap may occur. These problems often do not appear at the beginning of winding, but rather slowly emerge and intensify as the process progresses, ultimately affecting the tightness and neatness of the entire coil of steel cord.

[0005] The existence of this phenomenon reflects a subtle, cumulative effect of deviations that is difficult to detect in real time during long-term, multi-layered winding processes, causing the actual winding trajectory to gradually deviate from the preset ideal path. This cumulative deviation, leading to challenges in product consistency, is a common problem that needs to be overcome when improving the winding quality of high-end steel cord. Summary of the Invention

[0006] To address the technical problems existing in the current steel cord winding and laying system, the first aspect of this invention proposes a technical solution: a steel cord winding and laying control system, comprising: An I-beam reel is used to wind up steel cord, and the two ends of the winding shaft of the I-beam reel are defined as the first limit position and the second limit position, respectively. A lead screw structure is provided above the I-beam wheel, and a wire guide is provided on the lead screw structure. When the lead screw structure is driven to rotate, the wire guide can move along the axis of the lead screw structure, so that the wire guide can move between the first limit position and the second limit position of the I-beam wheel. A first drive motor is used to drive the I-beam wheel to rotate at a first speed w; The second drive motor is used to drive the lead screw structure to rotate at a second speed, so that the moving speed of the cable guide is Vp; A diameter measuring device is installed on one side of the I-beam reel and is used to detect the outer diameter of the steel cord structure layer wound on the surface of the I-beam reel. The controller is electrically connected to the first drive motor, the second drive motor, and the diameter measuring device; The controller is configured as follows: Receive the set diameter d0 of the I-beam roller, the target linear velocity v, and the diameter d of the steel cord; The theoretical outer diameter Ds of the steel cord is calculated based on the steel cord diameter d0 and the number of steel cord layers n. L And based on the real-time outer diameter Ds of the cable detected by the diameter measuring device. S Based on the theoretical cable outer diameter Ds L Or real-time cable outer diameter Ds S Calculate the first rotational speed w of the current I-beam reel winding, so that the current winding linear velocity of the I-beam reel is equal to the target linear velocity v; Based on the steel cord diameter d and the first rotational speed w, the target wire laying speed Vp of the wire laying device is calculated and output; The first drive motor is controlled to drive the I-beam wheel to rotate at a first speed w, and the second drive motor is controlled to drive the cable guide to move at a target cable guide speed Vp.

[0007] Preferably, the controller is configured to activate the diameter measuring device to perform outer diameter detection and recalculation of the first rotational speed w based on predetermined triggering conditions during the process of the steel cord being wound on the I-beam reel; The predetermined triggering conditions include at least one of the following: (a) The number of winding layers reaches the predetermined interval number; (b) Theoretical cable outer diameter Ds L Compared with the most recent measured real-time cable outer diameter Ds S The deviation exceeds the preset error threshold ε.

[0008] Preferably, the controller is further configured to perform an adaptive threshold adjustment process: When recalculation is initiated based on the trigger condition b, the current number of winding layers Ln is recorded; Calculate the layer interval ΔL between this trigger and the previous trigger based on condition b; Analyze the changing trend of the layer interval ΔL, and dynamically adjust the preset error threshold ε accordingly: If ΔL shows a shortening trend, then the operation of reducing the preset error threshold ε is performed; If ΔL shows an increasing trend, then the operation of increasing the preset error threshold ε is performed; If ΔL tends to stabilize, then the preset error threshold ε is maintained.

[0009] Preferably, the controller is configured to adjust its value by multiplying the current preset error threshold ε by an adaptive coefficient k, wherein: When ΔL shows a shortening trend, the adaptive coefficient k is less than 1; When ΔL shows an increasing trend, the adaptive coefficient k is greater than 1; The absolute value of the adaptive coefficient k is determined based on the rate of change of ΔL.

[0010] Preferably, both the first drive motor and the second drive motor are servo motors equipped with encoders; the controller is configured to adopt a master-slave synchronous control mode. The first drive motor is set as the main shaft, and the real-time rotation angle fed back by its encoder is used as the synchronization reference. The second drive motor is set as the slave shaft, and the electronic gear ratio i is calculated and updated in real time according to the formula i=d / (π*D), where D is the theoretical outer diameter of the cable. L Or real-time cable outer diameter Ds S ; The second drive motor is controlled to follow the first drive motor synchronously with the electronic gear ratio i, so that for each revolution of the I-beam wheel, the distance the wire guide moves along the lead screw structure is equal to the diameter d of the steel cord.

[0011] Preferably, the diameter measuring device is any one of a laser rangefinder, an ultrasonic sensor, or a visual measurement sensor.

[0012] The second aspect of this invention provides a technical solution: a method for controlling the winding of steel cord, using the aforementioned steel cord winding control system, comprising the following steps: S1: Set the diameter d0 of the I-beam roller, the target linear velocity v, and the diameter d of the steel cord; S2: During the winding process, based on predetermined trigger conditions, the real-time outer diameter Ds of the cable measured by the diameter measuring device is obtained. S The triggering conditions include the number of winding layers reaching a predetermined interval, or the theoretical outer diameter Ds of the cable. L Compared with the most recent measured real-time cable outer diameter Ds S The deviation exceeds the preset error threshold; S3: Based on the real-time cable outer diameter Ds S Calculate and control the first rotational speed w of the first drive motor to make the current winding speed equal to the target winding speed v; S4: Based on the steel cord diameter d and the first rotational speed w, calculate and control the rotational speed of the second drive motor so that the cable guide moves at the target cable guide speed Vp.

[0013] Preferably, the method further includes an adaptive adjustment step: When the theoretical cable outer diameter Ds L With real-time cable outer diameter Ds S When the deviation exceeds the threshold and triggers step S2, record the current number of winding layers and calculate the layer interval ΔL between the current number of winding layers and the previous similar triggering event. The preset error threshold is dynamically adjusted based on the changing trend of the layer interval ΔL.

[0014] Compared with the prior art, the advantages of the present invention are as follows: This application obtains the actual outer diameter of the H-beam reel in real time by setting a diameter measuring device, and uses this as the feedback input of the controller to dynamically adjust the winding speed and the winding speed. This closed-loop control ensures that the control reference of the system is always synchronized with the physical roll diameter, thereby fundamentally eliminating the accumulation of progressive errors caused by the mismatch of theoretical models.

[0015] The outer diameter of the H-beam is monitored in real time by a diameter measuring device, providing continuous physical dimensional feedback to the system. The controller is configured to recalculate and update the control parameters based on the latest measured outer diameter only when specific conditions are met (such as reaching a preset winding layer interval or real-time monitoring finding that the deviation between the theoretically calculated outer diameter and the measured outer diameter exceeds a threshold). Periodic calibration ensures the accuracy of the benchmark for long-term operation, while event-driven correction improves the ability to respond quickly to sudden deviations (such as unexpected loosening). Attached Figure Description

[0016] The accompanying drawings are not intended to be drawn to scale. In the drawings, each identical or nearly identical component shown in the various figures may be denoted by the same reference numeral. For clarity, not every component is labeled in each figure. Embodiments of various aspects of the invention will now be described by way of example and with reference to the accompanying drawings, wherein: Figure 1 This is a schematic diagram of the wire winding control system for steel cord take-up as shown in this invention; Figure 2 This is a schematic diagram of the theoretical outer diameter of the multilayer steel cord on the surface of the I-beam reel shown in this invention; Figure 3 This is a schematic diagram of the wire winding control system for steel cord take-up as shown in this invention. Detailed Implementation

[0017] To better understand the technical content of the present invention, specific embodiments are described below in conjunction with the accompanying drawings.

[0018] {Example 1} Combination Figure 1 As shown, the first aspect of the present invention proposes a technical solution, a wire winding control system for steel cord winding, including an I-beam reel 10, a lead screw structure 20, a wire winding device 30, a first drive motor 40, a second drive motor 50, a diameter measuring device 70, and a controller 60.

[0019] The I-beam reel 10 is used to wind up the steel cord. The two ends of the winding shaft of the I-beam reel 10 are defined as the first limit position and the second limit position, respectively. The lead screw structure 20 is set above the I-beam reel 10, and the lead screw structure 20 is equipped with a cord guide 30.

[0020] When the lead screw structure 20 is driven to rotate, the cable guide 30 can move along the axis of the lead screw structure 20, so that the cable guide 30 can move between the first limit position and the second limit position of the I-beam wheel 10.

[0021] The first drive motor 40 is used to drive the I-beam wheel 10 to rotate at a first speed w, and the second drive motor 50 is used to drive the lead screw structure 20 to rotate at a second speed, so that the moving speed of the cable guide 30 is Vp.

[0022] Furthermore, the diameter measuring device 70 is set on one side of the I-beam 10 and is used to detect the outer diameter of the steel cord structure layer wound on the surface of the I-beam 10.

[0023] Combination Figures 1 to 3 As shown, the controller 60 is electrically connected to the first drive motor 40, the second drive motor 50, and the diameter measuring device 70. The controller 60 is configured as follows: Receive the set diameter d0 of the I-beam roller, the target linear velocity v, and the diameter d of the steel cord; The theoretical outer diameter Ds of the steel cord is calculated based on the steel cord diameter d0 and the number of steel cord layers n. L And based on the real-time outer diameter Ds of the cable obtained by the diameter measuring device 70 S And based on the theoretical cable outer diameter Ds L Or real-time cable outer diameter Ds S Calculate the first rotational speed w of the current winding of the I-beam 10, so that the current winding linear velocity of the I-beam 10 is equal to the target linear velocity v; Based on the steel cord diameter d and the first rotational speed w, calculate and output the target wire laying speed Vp of the wire laying device 30; The first drive motor 40 is controlled to drive the I-beam wheel 10 to rotate at a first speed w, and the second drive motor 50 is controlled to drive the cable guide 30 to move at a target cable guide speed Vp.

[0024] It should be understood that existing technologies typically rely solely on a pre-defined layer number model to calculate the roll diameter and then fix or segment the speed curve accordingly. This fails to address real-world variables such as wire diameter fluctuations and differences in winding tightness during production, leading to accumulated deviations layer by layer. In contrast, this application introduces a diameter measuring device 70 to detect the real-time outer diameter Ds of the steel cord wound on the surface of the I-beam reel 10. S The controller 60 adjusts the real-time cable outer diameter Ds accordingly. S It can control the first drive motor 40 and the second drive motor 50 to intervene in the winding speed in real time, that is, adjust the winding speed w and the winding speed Vp.

[0025] In this way, it is ensured that a constant linear velocity v and a synchronous relationship of moving one line diameter d per revolution can be maintained regardless of how the actual winding state changes. This suppresses the cumulative effect of deviation in multi-layer winding and solves the problem of gradual deterioration of the winding quality that is very easy to occur when large-size I-beam reels are winding due to the large number of layers and long stroke.

[0026] Furthermore, the controller 60 is configured to activate the diameter measuring device 70 to perform outer diameter detection and recalculation of the first rotational speed w based on predetermined triggering conditions during the process of the I-beam 10 winding the steel cord. The predetermined triggering conditions include at least one of the following: (a) The number of winding layers reaches the predetermined interval number; (b) Theoretical cable outer diameter Ds L Compared with the most recent measured real-time cable outer diameter Ds S The deviation exceeds the preset error threshold ε.

[0027] As mentioned above, for condition (a), regardless of the actual deviation, an outer diameter measurement and speed recalculation are performed every N layers (such as 5 or 10 layers) as a preventative maintenance. This aims to perform periodic corrections before significant error accumulation to prevent potential deviations caused by long-term open-loop operation.

[0028] As mentioned above, for condition (b), when the theoretical cable outer diameter Ds L Compared with the most recent measured real-time cable outer diameter Ds S When the deviation exceeds the preset threshold ε, a recalculation is immediately triggered, i.e., a responsive correction is performed. When unexpected loosening or sudden change in wire diameter occurs during winding, there is no need to wait for a fixed period, and adjustments can be made immediately. It is highly responsive and targeted, and can effectively cope with sudden process fluctuations.

[0029] Furthermore, controller 60 is also configured to execute an adaptive threshold adjustment process: When recalculation is initiated based on trigger condition b, the current number of winding layers Ln is recorded; Calculate the layer interval ΔL between this trigger and the previous trigger based on condition b.

[0030] Furthermore, the changing trend of the layer interval ΔL is analyzed, and the preset error threshold ε is dynamically adjusted accordingly: If ΔL shows a shortening trend, then the operation of reducing the preset error threshold ε is performed; If ΔL shows an increasing trend, then the operation of increasing the preset error threshold ε will be performed; If ΔL tends to stabilize, then the preset error threshold ε is maintained.

[0031] Therefore, the preset error threshold ε is not a fixed value. When a deviation exceeds the limit, the controller 60 records the current layer number Ln. When the same event occurs again, the interval layer number ΔL = Ln - L(n-1) is calculated. By analyzing the changing trend of multiple consecutive ΔL, the preset error threshold ε is adjusted.

[0032] Specifically, when ΔL shortens, it means that the deviation accumulates faster, and the system is at risk of loosening. In this case, reducing the preset error threshold ε makes monitoring more sensitive and triggers corrections earlier to suppress undesirable trends. When ΔL lengthens, it means that the system is operating very stably, and the current preset error threshold ε may be too strict, leading to an overreaction to small fluctuations. In this case, increasing the preset error threshold ε reduces unnecessary correction actions, making operation smoother and more efficient. When ΔL is stable, it means that the current preset error threshold ε matches the process state well, and the current preset error threshold ε should be maintained.

[0033] In an optional embodiment, the controller 60 is configured to adjust its value by multiplying the current preset error threshold ε by an adaptive coefficient k, wherein: when ΔL shows a shortening trend, the adaptive coefficient k is less than 1; when ΔL shows an extending trend, the adaptive coefficient k is greater than 1.

[0034] Optionally, the absolute value of the adaptive coefficient k is determined based on the rate of change of ΔL.

[0035] Specifically, the value of k, whether greater than or less than 1, is determined by the trend, and its absolute value is related to the rate of change of ΔL. For example, if ΔL shortens sharply, k=0.8 might be used for a larger tightening, while if ΔL lengthens slowly, k=1.05 might be used for a fine-tuning and loosening.

[0036] In this way, the system can automatically find and lock the optimal monitoring threshold that matches the current actual equipment status, wire characteristics and other process features, without the need for repeated manual trial and error adjustments.

[0037] In the above embodiments, both the first drive motor 40 and the second drive motor 50 are servo motors equipped with encoders; the controller 60 is configured to adopt a master-slave synchronous control mode. The first drive motor 40 is set as the main shaft, and the real-time rotation angle fed back by its encoder is used as the synchronization reference. The second drive motor 50 is set as the driven shaft, and the electronic gear ratio i is calculated and updated in real time according to the formula i=d / (π*D), where D is the theoretical outer diameter of the cable based on the calculation. L Or real-time cable outer diameter Ds S .

[0038] The second drive motor 50 is controlled to follow the first drive motor 40 synchronously with an electronic gear ratio i, so that for every revolution of the I-beam wheel 10, the distance that the wire guide 30 moves along the lead screw structure 20 is equal to the diameter d of the steel cord.

[0039] It should be understood that in order to achieve the following: for the main shaft (I-beam wheel 10) to move the steel cord diameter d from the shaft (wire guide 30) for each revolution, that is, for the wire guide to move a distance d corresponding to the circumference πD of the I-beam wheel 10, a precise electronic gear ratio i must be achieved.

[0040] Specifically, the first drive motor 40 driving the I-beam wheel 10 is set as the main shaft, and its high-resolution encoder provides real-time position signals accurate to the angle. The second drive motor 50 driving the lead screw 20 is set as the driven shaft. During operation, the controller 60 adjusts the position according to the theoretical outer diameter Ds of the currently used cable. L Or real-time cable outer diameter Ds S The i value is continuously updated, and the slave motor 50 is instructed to strictly follow the angular movement of the spindle motor 40 according to this ratio. The encoder provides closed-loop feedback to ensure that the following is without deviation.

[0041] Optionally, the diameter measuring device 70 is a laser rangefinder sensor.

[0042] Specifically, in combination Figure 1 As shown, the laser emission / receive axis of the laser rangefinder is perpendicular to the rotation axis of the I-beam 10 and points towards the side of the wound body of the I-beam 10. The laser rangefinder emits a modulated laser beam to the outer surface of the steel cord winding layer and receives the reflected light. By calculating the phase difference or time difference between the emitted and received light signals, the straight-line distance from the sensor probe surface to a point on the outer surface of the I-beam 10 is directly and accurately measured, and the current real-time outer diameter Ds of the cable is calculated based on this distance. S .

[0043] In an optional embodiment, the diameter measuring device 70 may also be an ultrasonic sensor or a visual measurement sensor.

[0044] {Example 2} The second aspect of this invention provides a technical solution: a method for controlling the winding of steel cord, using the aforementioned steel cord winding control system, comprising the following steps: S1: Set the diameter d0 of the I-beam roller, the target linear velocity v, and the diameter d of the steel cord; S2: During the winding process, based on predetermined triggering conditions, the real-time outer diameter Ds of the cable measured by the diameter measuring device 70 is acquired. S Triggering conditions include the number of winding layers reaching a predetermined interval, or the theoretical outer diameter Ds of the cabling. L Compared with the most recent measured real-time cable outer diameter Ds S The deviation exceeds the preset error threshold; S3: Based on real-time cable outer diameter Ds S Calculate and control the first rotational speed w of the first drive motor 40 to make the current winding speed equal to the target winding speed v; S4: Based on the steel cord diameter d and the first rotational speed w, calculate and control the rotational speed of the second drive motor 50 so that the cable guide 30 moves at the target cable guide speed Vp.

[0045] The above-described cabling control method is described using a specific embodiment: The diameter of the I-beam roller is d0=200mm, the target linear velocity is v=10m / s, and the diameter of the steel cord is d=2.0mm. The preset triggering condition is: every 5 layers (interval) or the deviation ε between the theoretical outer diameter and the actual outer diameter is greater than 0.5 mm.

[0046] Startup: System initialization, n=0, calculate initial w and Vp using D= d0= 200 mm, start winding.

[0047] For condition (a): When the layer counter n reaches 5, 10, 15..., the diameter measuring device 70 is activated, and Ds is measured. S (e.g., Ds measured at the 5th layer) S =210.2 mm). The controller immediately recalculates w and Vp based on this measured value and updates the speed command.

[0048] For condition (b): Assuming the theoretical value Ds is at layer 7. L =212.0mm, but the most recent measured value (5th layer) is 210.2mm, a deviation of 1.8 mm > ε (0.5mm). At this point, diameter measurement is immediately triggered to obtain the true Ds of the 7th layer. S (e.g., 211.0 mm), and recalculate the speed.

[0049] As mentioned above, the dual mechanism of periodic triggering and abnormal triggering ensures that the cabling control always closely matches the theoretical value.

[0050] Furthermore, the above method also includes an adaptive adjustment step: When the theoretical cable outer diameter Ds L With real-time cable outer diameter Ds S When the deviation exceeds the threshold and triggers step S2, record the current number of winding layers and calculate the layer interval ΔL between the current number of winding layers and the previous similar triggering event. The preset error threshold is dynamically adjusted based on the changing trend of the layer interval ΔL.

[0051] Specifically, the initial preset error threshold ε is set to 0.5 mm.

[0052] Event 1: If it is on the 22nd floor, because |Ds L -Ds S | =0.6 mm>ε triggers recalculation. Record L1= 22.

[0053] Event 2: If the event is triggered again due to excessive deviation at level 41, record L2 = 41 and calculate ΔL1 = 41 - 22 = 19 levels.

[0054] Event 3: Triggered again on floor 57. L3 = 57, ΔL2 = 57 - 41 = 16 floors.

[0055] ΔL decreased from 19 layers to 16 layers, showing a shortening trend. This indicates a tendency for loosening. The preset error threshold ε was multiplied by a coefficient k=0.9, updating the preset error threshold ε to 0.5*0.9=0.45mm. Thereafter, the system will monitor deviations with a more sensitive standard.

[0056] If, under the new preset error threshold ε, the subsequent trigger interval ΔL tends to stabilize at approximately 15-17 layers, the system maintains this threshold. If ΔL continues to shorten, the preset error threshold ε will decrease further; if ΔL begins to lengthen, the preset error threshold ε may increase back. Through several iterations, the system eventually converges ε to a value that reflects the current optimal process stability.

[0057] While the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the invention. Those skilled in the art can make various modifications and refinements without departing from the spirit and scope of the invention. Therefore, the scope of protection of the present invention shall be determined by the claims.

Claims

1. A cable winding control system for steel cord, characterized in that, include: The I-beam reel (10) is used to wind up the steel cord, and the two ends of the winding shaft of the I-beam reel (10) are defined as the first limit position and the second limit position, respectively. A lead screw structure (20) is provided above the I-beam wheel (10). A wire guide (30) is provided on the lead screw structure (20). When the lead screw structure (20) is driven to rotate, the wire guide (30) can move along the axis of the lead screw structure (20) so that the wire guide (30) can move between the first limit position and the second limit position of the I-beam wheel (10). The first drive motor (40) is used to drive the I-beam wheel (10) to rotate at a first speed w; The second drive motor (50) is used to drive the lead screw structure (20) to rotate at a second speed, so that the moving speed of the wire guide (30) is Vp; A diameter measuring device (70) is provided on one side of the I-beam (10) and is used to detect the outer diameter of the steel cord structure layer wound on the surface of the I-beam (10); The controller (60) is electrically connected to the first drive motor (40), the second drive motor (50), and the diameter measuring device (70); The controller (60) is configured as follows: Receive the set diameter d0 of the I-beam roller, the target linear velocity v, and the diameter d of the steel cord; The theoretical outer diameter Ds of the steel cord is calculated based on the steel cord diameter d0 and the number of steel cord layers n. L And based on the real-time outer diameter Ds of the cable measured by the diameter measuring device (70), S Based on the theoretical cable outer diameter Ds L Or real-time cable outer diameter Ds S Calculate the first rotational speed w of the current I-beam (10) winding, so that the current winding linear velocity of the I-beam (10) is equal to the target linear velocity v; Based on the steel cord diameter d and the first rotation speed w, the target wire laying speed Vp of the wire laying device (30) is calculated and output; The first drive motor (40) is controlled to drive the I-beam wheel (10) to rotate at a first speed w, and the second drive motor (50) is controlled to drive the cable guide (30) to move at a target cable guide speed Vp.

2. The steel cord take-up control system according to claim 1, characterized in that, The controller (60) is configured to activate the diameter measuring device (70) to perform outer diameter detection and recalculation of the first rotational speed w based on predetermined triggering conditions during the process of the steel cord being wound by the I-beam (10); The predetermined triggering conditions include at least one of the following: (a) The number of winding layers reaches the predetermined interval number; (b) Theoretical cable outer diameter Ds L Compared with the most recent measured real-time cable outer diameter Ds S The deviation exceeds the preset error threshold ε.

3. The steel cord take-up control system according to claim 2, characterized in that, The controller (60) is also configured to perform an adaptive threshold adjustment process: When recalculation is initiated based on the trigger condition b, the current number of winding layers Ln is recorded; Calculate the layer interval ΔL between this trigger and the previous trigger based on condition b; Analyze the changing trend of the layer interval ΔL, and dynamically adjust the preset error threshold ε accordingly: If ΔL shows a shortening trend, then the operation of reducing the preset error threshold ε is performed; If ΔL shows an increasing trend, then the operation of increasing the preset error threshold ε is performed; If ΔL tends to stabilize, then the preset error threshold ε is maintained.

4. The steel cord take-up control system according to claim 3, characterized in that, The controller (60) is configured to adjust its value by multiplying the current preset error threshold ε by an adaptive coefficient k, wherein: When ΔL shows a shortening trend, the adaptive coefficient k is less than 1; When ΔL shows an increasing trend, the adaptive coefficient k is greater than 1; The absolute value of the adaptive coefficient k is determined based on the rate of change of ΔL.

5. The steel cord take-up control system according to any one of claims 1-4, characterized in that, Both the first drive motor (40) and the second drive motor (50) are servo motors equipped with encoders; the controller (60) is configured to use a master-slave synchronous control mode. The first drive motor (40) is set as the main shaft, and the real-time rotation angle fed back by its encoder is used as the synchronization reference; The second drive motor (50) is set as the slave shaft, and the electronic gear ratio i is calculated and updated in real time according to the formula i=d / (π*D), where D is the theoretical outer diameter of the cable Ds. L Or real-time cable outer diameter Ds S ; The second drive motor (50) is controlled to follow the first drive motor (40) synchronously with the electronic gear ratio (i), so that for each rotation of the I-beam wheel (10), the distance the wire guide (30) moves along the lead screw structure (20) is equal to the diameter (d) of the steel cord.

6. The steel cord take-up control system according to claim 1, characterized in that, The diameter measuring device (70) is any one of a laser rangefinder, an ultrasonic sensor, or a visual measurement sensor.

7. A method for controlling the winding of steel cord, characterized in that, The cable winding control system for steel cord take-up according to any one of claims 1-6 includes the following steps: S1: Set the diameter d0 of the I-beam roller, the target linear velocity v, and the diameter d of the steel cord; S2: During the winding process, based on predetermined triggering conditions, the real-time outer diameter Ds of the cable measured by the diameter measuring device (70) is obtained. S The triggering conditions include the number of winding layers reaching a predetermined interval, or the theoretical outer diameter Ds of the cable. L Compared with the most recent measured real-time cable outer diameter Ds S The deviation exceeds the preset error threshold; S3: Based on the real-time cable outer diameter Ds S Calculate and control the first rotational speed w of the first drive motor (40) so that the current winding speed is equal to the target speed v; S4: Based on the steel cord diameter d and the first rotational speed w, calculate and control the rotational speed of the second drive motor (50) so that the wire guide (30) moves at the target wire guide speed Vp.

8. The method for controlling the winding of steel cord according to claim 7, characterized in that, The method further includes an adaptive adjustment step: When the theoretical cable outer diameter Ds L With real-time cable outer diameter Ds S When the deviation exceeds the threshold and triggers step S2, record the current number of winding layers and calculate the layer interval ΔL between the current number of winding layers and the previous similar triggering event. The preset error threshold is dynamically adjusted based on the changing trend of the layer interval ΔL.

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