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CN-121990414-A - Wire arranging control system and control method for steel cord winding

CN121990414ACN 121990414 ACN121990414 ACN 121990414ACN-121990414-A

Abstract

The application relates to the technical field of steel cord winding, in particular to a winding displacement control system and a control method for winding a steel cord, comprising a spool, a winding shaft and a winding device, wherein the spool is used for winding the steel cord, and two ends of the winding shaft of the spool are respectively defined as a first limit position and a second limit position; the wire arranging device is arranged on the screw rod structure and can move along the axis of the screw rod structure when the screw rod structure is driven to rotate, so that the wire arranging device moves between a first limit position and a second limit position of the spool. The application obtains the actual outer diameter of the spool in real time by arranging the diameter measuring device, takes the actual outer diameter as the feedback input of the controller, dynamically adjusts the winding rotating speed and the winding displacement speed, and ensures that the control standard of the system is always synchronous with the physical winding diameter by the closed-loop control, thereby fundamentally eliminating the progressive error accumulation caused by the mismatch of the theoretical model.

Inventors

  • CAI WEIDONG

Assignees

  • 张家港市骏马钢帘线有限公司

Dates

Publication Date
20260508
Application Date
20260212

Claims (8)

  1. 1. A wire-arranging control system for winding up steel cords, comprising: The spool (10) is used for rolling the steel cord, and two ends of a rolling shaft of the spool (10) are respectively defined as a first limit position and a second limit position; The wire arranging device comprises a screw rod structure (20) arranged above a spool (10), wherein a wire arranging device (30) is arranged on the screw rod structure (20), and when the screw rod structure (20) is driven to rotate, the wire arranging device (30) can move along the axis of the screw rod structure (20) so that the wire arranging device (30) moves between a first limit position and a second limit position of the spool (10); the first driving motor (40) is used for driving the spool (10) to rotate according to a first rotating speed w; The second driving motor (50) is used for driving the screw rod structure (20) to rotate according to a second rotating speed so as to enable the moving speed of the wire arranging device (30) to be Vp; the diameter measuring device (70) is arranged on one side of the spool (10) and is used for detecting the outer diameter of a steel cord structure layer wound on the surface of the spool (10); A controller (60) electrically connected to the first drive motor (40), the second drive motor (50) and the caliper device (70); Wherein the controller (60) is configured to: Receiving a set spool roller diameter d 0 , a target line speed v and a steel cord diameter d; Calculating a theoretical wire-arranging outer diameter Ds L based on a steel cord diameter d 0 and a steel cord wire-arranging layer number n, and calculating a first rotating speed w of winding a current spool (10) based on a real-time wire-arranging outer diameter Ds S detected by the diameter measuring device (70) and based on the theoretical wire-arranging outer diameter Ds L or the real-time wire-arranging outer diameter Ds S , so that the winding linear speed of the current spool (10) is equal to a target linear speed v; calculating and outputting a target wire arranging speed Vp of the wire arranging device (30) based on the diameter d of the steel cord and the first rotating speed w; the first driving motor (40) is controlled to drive the spool (10) to rotate at a first rotating speed w, and the second driving motor (50) is controlled to drive the wire arranging device (30) to move at a target wire arranging speed Vp.
  2. 2. The steel cord winding-up wire arrangement control system according to claim 1, characterized in that the controller (60) is configured to activate the calliper means (70) for outer diameter detection and recalculation of the first rotational speed w based on predetermined triggering conditions during winding of the steel cord by the spool (10); the predetermined triggering condition includes at least one of: (a) The number of winding layers reaches a preset number of interval layers; (b) The theoretical wire outer diameter Ds L deviates from the last measured real-time wire outer diameter Ds S by more than a preset error threshold epsilon.
  3. 3. The steel cord take-up wire-arranging control system according to claim 2, wherein the controller (60) is further configured to perform an adaptive threshold adjustment procedure: when recalculation is started based on the triggering condition b, recording the current winding layer number Ln; calculating the layer number interval delta L between the trigger at this time and the last trigger based on the condition b; Analyzing the change trend of the layer number interval delta L, and dynamically adjusting the preset error threshold epsilon according to the change trend: If delta L shows a shortening trend, executing an operation of reducing the preset error threshold epsilon; if delta L shows an extension trend, executing the operation of increasing the preset error threshold epsilon; if DeltaL tends to stabilize, the preset error threshold epsilon is maintained.
  4. 4. A steel cord take-up wire-arranging control system according to claim 3, characterized in that the controller (60) is configured to adjust the current preset error threshold epsilon by multiplying it by an adaptive coefficient k, wherein: when Δl exhibits a shortening tendency, the adaptive coefficient k is smaller than 1; when DeltaL shows an extension trend, the adaptive coefficient k is greater than 1; the absolute value of the adaptive coefficient k is determined from the rate of change of al.
  5. 5. The steel cord winding displacement control system according to any one of claims 1-4, wherein the first drive motor (40) and the second drive motor (50) are each an encoder equipped servo motor, and wherein the controller (60) is configured to employ a master-slave synchronous control mode: setting the first driving motor (40) as a main shaft, and taking a real-time rotation angle fed back by an encoder of the first driving motor as a synchronous reference; Setting the second driving motor (50) as a slave axis, and calculating and updating the electronic gear ratio i in real time according to the formula i=d/(pi×d), wherein D is the theoretical wire outer diameter Ds L or the real-time wire outer diameter Ds S ; -controlling the second drive motor (50) to move synchronously with the first drive motor (40) with the electronic gear ratio (i) such that the displacement distance of the wire arranger (30) along the screw structure (20) per rotation of the spool (10) is equal to the steel cord diameter (d).
  6. 6. The steel cord take-up wire arranging control system according to claim 1, characterized in that the diameter measuring device (70) is any one of a laser ranging sensor, an ultrasonic sensor or a vision measuring sensor.
  7. 7. A wire-arranging control method of a steel cord wire-winding, characterized by using the wire-arranging control system of a steel cord wire-winding of any one of claims 1 to 6, comprising the steps of: S1, setting a spool roller diameter d 0 , a target line speed v and a steel cord diameter d; S2, acquiring a real-time wire-arranging outer diameter Ds S detected by a diameter measuring device (70) based on a preset triggering condition in the winding process, wherein the triggering condition comprises that the number of winding layers reaches a preset interval layer number or the deviation between the theoretical wire-arranging outer diameter Ds L and the real-time wire-arranging outer diameter Ds S which is actually measured last time exceeds a preset error threshold value; S3, calculating and controlling a first rotating speed w of a first driving motor (40) based on the real-time winding displacement outer diameter Ds S so that the current winding linear speed is equal to the target linear speed v; s4, calculating and controlling the rotating speed of the second driving motor (50) based on the diameter d of the steel cord and the first rotating speed w so as to enable the wire arranging device (30) to move at the target wire arranging speed Vp.
  8. 8. The method for controlling the winding displacement of a steel cord according to claim 7, further comprising an adaptive adjustment step of: When the deviation of the theoretical winding displacement outer diameter Ds L and the real-time winding displacement outer diameter Ds S exceeds a threshold value to trigger the step S2, recording the current winding layer number and calculating the layer number interval delta L of the same type of trigger event as the last time; And dynamically adjusting the preset error threshold according to the change trend of the layer number interval delta L.

Description

Wire arranging control system and control method for steel cord winding Technical Field The invention relates to the technical field of steel cord winding, in particular to a wire arrangement control system and a control method for steel cord winding. Background In the production of steel cords, take-up is one of the key processes that determine the morphology and quality of the final product. The main task of winding is to wind the continuously produced steel cord on the spool in order and tightly to form a coil with stable structure and uniform density. This process not only affects the appearance of the product and the stability of transportation and storage, but also is more directly related to the performance and productivity of downstream users (e.g., tire, rubber product manufacturers). With the increase of the demands of downstream industries on the single-coil length and the bearing capacity of steel cords, large-size and large-capacity spool wheels are increasingly widely applied to production lines. The spool has larger cylinder diameter and wider winding breadth, can bear longer steel cords, reduces the coil replacement frequency, and is beneficial to improving the production consistency. At present, the industry generally pursues the compactness and the uniformity of a coil when the steel cord is wound, but in actual mass production, the fact that even under the condition of consistent equipment parameter setting, the gradual degradation trend of the winding quality of the final coil still can occur along with the continuous increase of the winding layer number on a large-size spool, for example, after the winding of a plurality of layers, the phenomena of uneven winding pitch, winding gaps or local overlapping of the coil and the like can occur, and the problems often do not occur at the beginning of winding, but slowly appear and aggravate along with the progress of the process, and finally the winding compactness and the appearance uniformity of the whole coil steel cord are affected. The existence of the phenomenon reflects that in the long-time and multi-layer winding process, a certain deviation accumulation effect which is not easy to perceive in real time exists, so that the actual winding track gradually deviates from a preset ideal path. The product consistency challenge caused by such accumulated bias is a common difficulty that needs to be overcome when improving the high end steel cord winding quality. Disclosure of Invention Aiming at the technical problems of the steel cord winding and arranging wire in the prior art, the first aspect of the invention provides a technical scheme, a wire arranging control system for the steel cord winding, comprising: the spool is used for rolling the steel cord, and two ends of a rolling shaft of the spool are respectively defined as a first limit position and a second limit position; the wire arranging device is arranged on the screw rod structure and can move along the axis of the screw rod structure when the screw rod structure is driven to rotate, so that the wire arranging device moves between a first limit position and a second limit position of the spool; The first driving motor is used for driving the spool to rotate according to a first rotating speed w; The second driving motor is used for driving the screw rod structure to rotate according to a second rotating speed so that the moving speed of the wire arranging device is Vp; the diameter measuring device is arranged on one side of the spool and used for detecting the outer diameter of the steel cord structure layer wound on the surface of the spool; the controller is electrically connected with the first driving motor, the second driving motor and the diameter measuring device; wherein the controller is configured to: Receiving a set spool roller diameter d 0, a target line speed v and a steel cord diameter d; Calculating a theoretical wire-arranging outer diameter Ds L based on a steel cord diameter d 0 and a steel cord wire-arranging layer number n, and calculating a first rotating speed w of current spool winding based on the theoretical wire-arranging outer diameter Ds L or the real-time wire-arranging outer diameter Ds S to enable the current spool winding speed to be equal to a target wire speed v based on the real-time wire-arranging outer diameter Ds S detected by the diameter measuring device; Calculating and outputting a target wire arranging speed Vp of the wire arranging device based on the diameter d of the steel cord and the first rotating speed w; And controlling the first driving motor to drive the spool to rotate at a first rotation speed w, and controlling the second driving motor to drive the wire arranging device to move at a target wire arranging speed Vp. Preferably, the controller is configured to start the diameter measuring device to perform outer diameter detection and recalculation of the first rotational speed w based on a predetermined trigger condition du