Tension control system and method for bobbin winder

Abstract

The invention relates to the technical field of textile, solves the problem that a bobbin winder cannot detect the abnormal state of yarn in time, and particularly discloses a bobbin winder tension control system and method.The control system comprises a tension sensor used for feeding back actually monitored tension signals to a single-chip microcomputer control system; the electromagnetic tensioner is used for adjusting the positive pressure of the electromagnetic coil on the yarn; the image acquisition system is used for acquiring yarn tensioning radian state image information and feeding back the information to the single chip microcomputer control system; the single chip microcomputer control system is used for receiving the signals, judging whether the signals are matched or not and controlling the current of the electromagnetic tensioner; the display operation terminal is used for providing a human-computer interaction interface; the control method comprises the steps of S100, system initialization setting, S200, real-time data collection, S300, data comparison and judgment and S400, tension adjustment. The method is used for accurately controlling the yarn tension of the bobbin winder, has the function of judging whether the yarn state is abnormal or not by combining images, and can feed back the abnormal working state of the bobbin winder in time.

Description

Technical Field

[0001] The invention relates to the field of textile technology, in particular to a winding machine tension control system and method. Background Art

[0002] Winder tension control involves the influence of yarn tension on winding formation and subsequent processing. During the working process of the winder, yarn tension is a crucial parameter. It directly affects the tightness of the bobbin winding, which in turn affects the bobbin winding capacity, the difficulty of dyeing, and the yarn breakage rate during processing. Especially in yarns for bobbin dyeing, the processing tension needs to be properly controlled to obtain loose bobbins, which is conducive to dyeing. At the same time, the yarn is under stress during the winding process, and the outer yarn exerts pressure on the inner yarn, which is transmitted layer by layer, so that the yarn tension is reduced. When the tension becomes zero, the yarn is in a relaxed state, which may cause problems such as wrinkling or bulging of the package.

[0003] In order to control the uniformity of package density and reduce or avoid the above phenomenon, the winding tension must be properly controlled during the winding process. Too low winding tension will cause the winding bobbin to be soft, easy to collapse and unwind, and the unwinding tension will be unstable; too high winding tension will lead to poor winding formation, increased non-defective breakage, decreased yarn completion rate, and more waste. At the same time, the yarn internal energy consumption is large, the internal quality is greatly damaged, and the yarn elasticity is reduced, which is not conducive to subsequent processing. Unstable winding tension, which fluctuates from time to time, will lead to inconsistent internal and external stratification of the forming, increased unwinding and unwinding, etc., which is also not conducive to subsequent processing.

[0004] Therefore, the tension control technology of the winding machine is particularly important. In actual production, various technologies and devices are needed to ensure the stability and controllability of the yarn tension, such as piezoresistive pressure sensors for real-time detection, fuzzy control technology for tension control, and magnetic powder brake wheel tension adjustment devices for tension adjustment. In addition, it is also necessary to consider the impact of external interference on the system and take corresponding hardware and software anti-interference measures. Therefore, proper tension control is crucial to ensure yarn quality, reduce thread breakage rate, and improve production efficiency.

[0005] The related technical means of winding machine tension control in the prior art can only control the tension size during the tension control process, but cannot obtain whether the winding machine yarn is in an abnormal working state, resulting in problems such as yarn knotting and abnormal winding in yarn winding. Summary of the invention

[0006] In order to solve the problem in the prior art that the tension control of a winding machine can only control the tension and cannot detect the abnormal state of the yarn in time, the present invention provides a tension control system and method for a winding machine.

[0007] The technical solution adopted by the present invention is:

[0008] A winding machine tension control system, comprising:

[0009] A tension sensor, which is disposed between the electromagnetic tensioner and the yarn and in contact with the yarn, and is used to obtain yarn tension information, convert the obtained yarn tension information into an electrical signal and transmit it to the single-chip microcomputer control system;

[0010] An electromagnetic tensioner is arranged on the yarn between the yarn outlet position and the yarn winding position of the bobbin on the winding machine, and is used to adjust the current of the electromagnetic coil through the single-chip control system to change the electromagnetic suction force, so as to adjust the positive pressure acting on the yarn and realize the control of the yarn tension;

[0011] An image acquisition system, which is arranged on one side of the contact position between the electromagnetic tensioner and the yarn, and is used to acquire image information of the tensioning state of the yarn under the electromagnetic tensioner, and transmit the acquired image information to the single-chip control system;

[0012] The display operation terminal is electrically connected to the single-chip microcomputer control system and is used to provide a human-computer interaction interface, set the tension value, monitor the tension size, yarn tension status and display fault information through operation, and control parameters through the single-chip microcomputer control system.

[0013] Furthermore, the balloon controller includes a yarn guide hook, a movable balloon cover and a balloon size sensor, the yarn guide hook acts on the yarn to guide the yarn, the movable balloon cover is used to obtain information detected by the balloon size detection sensor, and adjust the height of the movable balloon cover to control the balloon size.

[0014] Furthermore, the electromagnetic tensioner includes two tension disks, one of which is provided with an electromagnetic coil, and the tension disk provided with the electromagnetic coil is used for rotational motion.

[0015] Furthermore, the image acquisition system includes an image acquisition camera, an imaging backplane, a light source and an image signal transmitter, wherein the light source and the acquisition camera are arranged on one side of the yarn, the imaging backplane is arranged on the other side of the yarn relative to the light source, and the image signal transmitter is arranged on the image acquisition camera;

[0016] Wherein, the light source is used to provide illumination, and the yarn forms a shadow under the illumination, providing an acquisition object for the image acquisition camera;

[0017] The image acquisition camera is used to acquire the shadow image formed by the yarn on the shadowing backboard under the illumination of the light source;

[0018] The shadow backing plate is used to provide a shadow imaging area of ​​the yarn;

[0019] The image signal transmitter is used to send the image information collected by the image acquisition camera to the single chip control system.

[0020] Furthermore, it also includes:

[0021] Balloon controller, used to stabilize the unwinding tension of the bobbin by adjusting the balloon shape;

[0022] The driving device is used to drive the bobbin to unwind and advance to the groove drum to be wound into bobbin yarn, thereby realizing bobbin winding.

[0023] A method for controlling tension of a winding machine comprises the following steps:

[0024] S100, system initialization settings, start the winding machine tension control system, make all components in working state, including tension sensor, electromagnetic tensioner, image acquisition system, single chip control system and display operation terminal, set the preset yarn tension value through the display operation terminal, the preset yarn tension value is determined according to production requirements and yarn characteristics, and start the winding machine to start winding after the setting is completed;

[0025] S200, real-time data acquisition, continuously sensing the yarn tension through the tension sensor, and feeding back the actual monitored tension signal to the single-chip control system in real time; through the image acquisition system, the tension state image of the yarn is collected in real time and transmitted to the single-chip control system;

[0026] S300, data comparison and judgment, the single chip control system compares the tension signal collected by the tension sensor with the preset tension value to determine whether the current tension is close to the preset value;

[0027] S400, tension adjustment, the single chip control system adjusts the yarn tension to the preset value in a linear manner by adjusting the current of the electromagnetic tensioner according to the deviation between the tension sensor and the preset value.

[0028] Furthermore, in S300, the single-chip control system analyzes the image of the image acquisition system, and determines whether the tension state of the yarn is normal based on the image analysis result. The analyzed image information includes whether the curvature and / or density of the yarn in the image meets the normal standard. If there is no abnormality, S400 is executed normally.

[0029] Further, the information for judging the abnormal state of the yarn includes whether the yarn is too tight, too loose or twisted;

[0030] When the image analysis shows that the yarn tension state is normal and matches the tension state information corresponding to the tension feedback from the current tension sensor, it is determined that the yarn is in a normal tension state, and the S400 is continued;

[0031] When the image analysis shows that the yarn tension state is abnormal, or does not match the tension state information corresponding to the tension feedback from the current tension sensor, it is judged that the yarn is in an abnormal tension state, and S400 is not executed. The single-chip control system controls the winding machine to stop and controls the alarm to send an alarm signal.

[0032] The beneficial effects of the present invention are:

[0033] Compared with the tension control means in the prior art, the winding machine tension control system and control method of the present invention not only solve the singleness problem of tension control, but also optimize the winding process of the yarn in multiple dimensions, effectively avoiding the occurrence of problems such as yarn knotting and abnormal winding. The tension sensor of the present invention can continuously and accurately sense the tension state of the yarn, and feed back this key information to the single-chip control system in real time. It ensures that the control system can grasp the tension of the yarn at any time, and provides accurate data support for subsequent adjustments. Compared with the tension control method based on experience or simple sensors in the prior art, the control system significantly improves the accuracy and real-time performance of the control. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] Figure 1 It is the control principle diagram of the tension control system of the present invention;

[0035] Figure 2 is a flow chart of the tension control method of the present invention; DETAILED DESCRIPTION

[0036] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings here can be arranged and designed in various different configurations.

[0037] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0038] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0039] Example 1

[0040] A tension control system for winding machines, please refer to Figure 1 , specifically including:

[0041] The tension sensor is arranged between the electromagnetic tensioner and the yarn and in contact with the yarn, and is used to obtain the yarn tension information, convert the obtained yarn tension information into an electrical signal and transmit it to the single-chip control system; the tension sensor is one of the core components of the system, and is used to continuously and accurately sense the tension state of the yarn. It can convert the actual monitored tension signal into an electrical signal, and feed it back to the single-chip control system in real time, providing accurate data support for subsequent tension adjustment, and ensuring the accuracy and real-time performance of tension control.

[0042] The electromagnetic tensioner is arranged on the yarn between the yarn outlet position and the yarn winding position of the bobbin on the winding machine, and is used to adjust the current of the electromagnetic coil through the single-chip control system to change the electromagnetic suction force, so as to adjust the positive pressure acting on the yarn and realize the control of the yarn tension; the electromagnetic tensioner is the executive component of the system, which changes the electromagnetic suction force by adjusting the current of the electromagnetic coil, thereby adjusting the positive pressure on the yarn and realizing the precise control of the yarn tension. The electromagnetic tensioner has a fast response speed and a wide adjustment range, and can meet the tension control requirements under different yarn materials, specifications and winding speeds.

[0043] An image acquisition system is arranged on one side of the contact position between the electromagnetic tensioner and the yarn, and is used to collect image information of the tensioning state of the yarn under the electromagnetic tensioner, and transmit the collected image information to the single-chip control system; the image acquisition system provides intuitive yarn status information to the control system by collecting the tension arc status image of the yarn.

[0044] Preferably, the image acquisition system comprises an image acquisition camera, an imaging back plate, a light source and an image signal transmitter, wherein the light source and the acquisition camera are arranged on one side of the yarn, the imaging back plate is arranged on the other side of the yarn relative to the light source, and the image signal transmitter is arranged on the image acquisition camera;

[0045] The light source is used to provide illumination, and the yarn forms a shadow under the illumination, which provides an acquisition object for the image acquisition camera;

[0046] The image acquisition camera is used to acquire the shadow image formed by the yarn on the shadow backing plate under the illumination of the light source;

[0047] The shadowing backing plate is used to provide a shadow imaging area of ​​the yarn;

[0048] The image signal transmitter is used to send the image information collected by the image acquisition camera to the single-chip microcomputer control system.

[0049] In this embodiment, the image acquisition camera can obtain clearer and more intuitive images by acquiring images of the shadowing backboard rather than directly acquiring images of the yarn, which is convenient for subsequent analysis and judgment. The shadowing backboard can be a white board or other board with a greater contrast with the shadow color. Compared with directly acquiring images of the yarn, it can avoid problems such as the yarn being too thin or the yarn being difficult to distinguish from the color of the environment, which make the acquired image difficult to identify. By comparing the data of the tension sensor and the image acquisition system, the control system can determine whether the yarn is in a normally tensioned state, thereby avoiding the occurrence of problems such as yarn knotting and abnormal entanglement.

[0050] The single-chip control system is used to receive the signals from the tension sensor and the image acquisition system, compare and determine whether the signals match, and then according to the preset tension value, control the current of the electromagnetic tensioner to achieve automatic adjustment of the yarn tension; the single-chip control system is the core of the entire system, responsible for receiving and processing data from the tension sensor and the image acquisition system. The single-chip control system makes quick judgments and decisions based on the preset algorithms and logic, and controls the electromagnetic tensioner to adjust the tension. At the same time, the single-chip control system can also interact with the operator through the display operation terminal to achieve functions such as setting the tension value, monitoring the tension status, and displaying fault information.

[0051] The display operation terminal is electrically connected to the single-chip control system to provide a human-computer interaction interface. The tension value can be set, the tension level and yarn tension status can be monitored, and fault information can be displayed. The parameters can be controlled through the single-chip control system. Through the display operation terminal, the operator can easily grasp the operating status of the equipment and make corresponding adjustments. The display operation terminal improves the operability and visualization of the system.

[0052] Preferably, the balloon controller includes a yarn guide hook, a movable balloon cover and a balloon size sensor, wherein the yarn guide hook acts on the yarn to guide the yarn, and the movable balloon cover is used to obtain information detected by the balloon size detection sensor and adjust the height of the movable balloon cover to control the balloon size. The position of the yarn guide hook is fixed, and it plays the role of guiding the yarn through the balloon controller; the movable balloon cover is the core of the balloon controller, and can automatically adjust its height according to the information transmitted by the balloon size detection sensor. When the yarn is unwound, the size of the balloon changes, and the balloon size detection sensor will detect this change and transmit the information to the control system. The control system controls the height of the movable balloon cover according to the received information to ensure that the size of the balloon is always kept within a suitable range. The balloon controller can avoid excessive fluctuations in the unwinding tension of the yarn, which can cause problems such as yarn breakage, knotting or abnormal winding. The balloon controller can effectively avoid the occurrence of these problems by accurately controlling the size and shape of the balloon, thereby improving the production efficiency and product quality of the winding machine.

[0053] Preferably, the electromagnetic tensioner includes two tension disks, one of which is provided with an electromagnetic coil, and the tension disk provided with the electromagnetic coil is used for rotational motion. The electromagnetic tensioner is mainly composed of two tension disks with different axes but coaxial core lines and synchronous rotation. One of the disks has an electromagnetic coil and only performs rotational motion; the other disk can both synchronously rotate and move axially. Its working principle is as follows:

[0054] When current passes through the electromagnetic coil, according to the principle of electromagnetic induction, a magnetic field is generated around the coil, and the magnetic field will generate an attractive or repulsive force on the other disk (i.e., the movable disk), depending on the direction of the current. By changing the magnitude and direction of the current passing through the electromagnetic coil, the strength and direction of the magnetic field can be adjusted to control the force on the movable disk. This force is converted into a positive pressure on the yarn, thereby achieving precise control of the yarn tension. The disk with the electromagnetic coil and the movable disk maintain coaxial centerlines during rotation to ensure that the yarn can pass smoothly between the two disks. At the same time, the movable disk moves axially under the action of the electromagnetic force to adjust the positive pressure on the yarn. Based on the above working principle, the electromagnetic tensioner achieves the effects of precise tension control, fast adjustment response speed, strong adaptability, and high efficiency.

[0055] Preferably, the tension control system of this embodiment further includes:

[0056] Balloon controller, used to stabilize the unwinding tension of the bobbin by adjusting the balloon shape;

[0057] The driving device is used to drive the bobbin to unwind and advance to the groove drum to be wound into bobbin yarn, thereby realizing bobbin winding.

[0058] Example 2

[0059] This embodiment is a tension control method for a winding machine, which can be implemented according to the tension control system of embodiment 1. Figure 2 , specifically including the following steps:

[0060] S100, system initialization settings, start the winding machine tension control system, make all components in working state, including tension sensor, electromagnetic tensioner, image acquisition system, single chip control system and display operation terminal, set the preset yarn tension value through the display operation terminal, the preset yarn tension value is determined according to production requirements and yarn characteristics, and start the winding machine to start winding after the setting is completed;

[0061] S200, real-time data acquisition, continuously sensing the yarn tension through the tension sensor, and feeding back the actual monitored tension signal to the single-chip control system in real time; through the image acquisition system, the tension state image of the yarn is collected in real time and transmitted to the single-chip control system;

[0062] S300, data comparison and judgment, the single-chip control system compares the tension signal collected by the tension sensor with the preset tension value to determine whether the current tension is close to the preset value; in this embodiment, the image acquisition system and the tension sensor compare and judge the data and the purpose of the comparison is to determine whether the tension collected by the tension sensor is the tension of the yarn in a normal tension state. The tension can only be adjusted when the yarn is in a normal state, otherwise the system will execute a shutdown alarm;

[0063] S400, tension adjustment, the single chip control system adjusts the yarn tension to the preset value in a linear manner by adjusting the current of the electromagnetic tensioner according to the deviation between the tension sensor and the preset value.

[0064] Preferably, in S300, the single-chip control system analyzes the image of the image acquisition system, and determines whether the tension state of the yarn is normal based on the image analysis result. The analyzed image information includes whether the curvature and / or density of the yarn in the image meets the normal standard. If there is no abnormality, S400 is executed normally.

[0065] Preferably, the information for judging the abnormal state of the yarn includes whether the yarn is too tight, too loose or twisted;

[0066] When the image analysis shows that the yarn tension state is normal and matches the tension state information corresponding to the tension feedback from the current tension sensor, it is determined that the yarn is in a normal tension state, and the S400 is continued;

[0067] When the image analysis shows that the yarn tension state is abnormal, or does not match the tension state information corresponding to the tension feedback from the current tension sensor, it is judged that the yarn is in an abnormal tension state, and S400 is not executed. The single-chip control system controls the winding machine to stop and controls the alarm to send an alarm signal.

[0068] Compared with the prior art, the present invention adds an image acquisition system. The image acquisition system provides yarn status information to the control system by acquiring the tension arc state image of the yarn under the electromagnetic tensioner. By comparing the data of the tension sensor and the image acquisition system, the control system can determine whether the yarn is in a normal tension state. Once the yarn state is abnormal, such as too tight, too loose or twisted, the control system can immediately send a stop signal to avoid the occurrence of yarn knotting, abnormal winding and other problems. This not only improves the winding quality of the yarn, but also greatly reduces the failure rate and downtime in the production process.

[0069] The single-chip control system of the present invention can receive and process data from the tension sensor and the image acquisition system, and make quick judgments and decisions according to preset algorithms and logics. At the same time, the single-chip control system can also interact with the operator through the display operation terminal to achieve functions such as setting the tension value, monitoring the tension state, and displaying fault information. This method not only improves the ease of use of the control system, but also enables the operator to more conveniently grasp the operating status of the equipment and make corresponding adjustments.

[0070] The winding machine tension control system and control method of the present invention realize accurate control and state monitoring of yarn tension by integrating the functions of multiple components such as tension sensor, electromagnetic tensioner, image acquisition system and single-chip control system. Not only the winding quality and production efficiency of yarn are improved, but also the failure rate and downtime in the production process are greatly reduced. For textile production, the tension control system and control method thereof bring significant economic and social benefits.

[0071] As described above, the embodiments of the present invention are described above. The preferred embodiments of the present invention are described above. If the preferred implementation methods in each preferred embodiment are not obviously self-contradictory or based on a preferred implementation method, each preferred implementation method can be arbitrarily superimposed and used in combination. The embodiments and specific parameters in the embodiments are only for the purpose of clearly describing the invention verification process of the inventor, and are not used to limit the patent protection scope of the present invention. The patent protection scope of the present invention is still subject to its claims. Any equivalent structural changes made by using the contents of the description and drawings of the present invention should be included in the protection scope of the present invention.

Claims

1. A winding machine tension control system, characterized in that: include: A tension sensor, which is disposed between the electromagnetic tensioner and the yarn and in contact with the yarn, and is used to obtain yarn tension information and convert the obtained yarn tension information into an electrical signal and transmit it to the single-chip microcomputer control system; An electromagnetic tensioner is arranged on the yarn between the yarn outlet position and the yarn winding position of the bobbin on the winding machine, and is used to adjust the current of the electromagnetic coil through the single-chip control system to change the electromagnetic suction force, so as to adjust the positive pressure acting on the yarn and realize the control of the yarn tension; An image acquisition system, which is arranged on one side of the contact position between the electromagnetic tensioner and the yarn, and is used to acquire image information of the tensioning state of the yarn under the electromagnetic tensioner, and transmit the acquired image information to the single-chip control system; The display operation terminal is electrically connected to the single-chip microcomputer control system and is used to provide a human-computer interaction interface, set the tension value, monitor the tension size, yarn tension status and display fault information through operation, and control parameters through the single-chip microcomputer control system.

2. A winding machine tension control system according to claim 1, characterized in that: The balloon controller includes a yarn guide hook, a movable balloon cover and a balloon size sensor. The yarn guide hook acts on the yarn to guide the yarn, and the movable balloon cover is used to obtain information detected by the balloon size detection sensor and adjust the height of the movable balloon cover to control the balloon size.

3. A winding machine tension control system according to claim 1, characterized in that: The electromagnetic tensioner comprises two tension disks, one of which is provided with an electromagnetic coil, and the tension disk provided with the electromagnetic coil is used for rotating motion.

4. A winding machine tension control system according to claim 1, characterized in that: The image acquisition system comprises an image acquisition camera, an imaging back plate, a light source and an image signal transmitter, wherein the light source and the acquisition camera are arranged on one side of the yarn, the imaging back plate is arranged on the other side of the yarn relative to the light source, and the image signal transmitter is arranged on the image acquisition camera; Wherein, the light source is used to provide illumination, and the yarn forms a shadow under the illumination, providing an acquisition object for the image acquisition camera; The image acquisition camera is used to acquire the shadow image formed by the yarn on the shadowing backboard under the illumination of the light source; The shadow backing plate is used to provide a shadow imaging area of ​​the yarn; The image signal transmitter is used to send the image information collected by the image acquisition camera to the single chip control system.

5. A winding machine tension control system according to claim 1, characterized in that: Also includes: Balloon controller, used to stabilize the unwinding tension of the bobbin by adjusting the balloon shape; The driving device is used to drive the bobbin to unwind and advance to the groove drum to be wound into bobbin yarn, thereby realizing bobbin winding.

6. A method for controlling the tension of a winding machine, according to any one of claims 1 to 5, characterized in that: The steps include: S100, system initialization settings, start the winding machine tension control system, make all components in working state, including tension sensor, electromagnetic tensioner, image acquisition system, single chip control system and display operation terminal, set the preset yarn tension value through the display operation terminal, the preset yarn tension value is determined according to production requirements and yarn characteristics, and start the winding machine to start winding after the setting is completed; S200, real-time data acquisition, continuously sensing the yarn tension through the tension sensor, and feeding back the actual monitored tension signal to the single-chip control system in real time; through the image acquisition system, the tension state image of the yarn is collected in real time and transmitted to the single-chip control system; S300, data comparison and judgment, the single chip control system compares the tension signal collected by the tension sensor with the preset tension value to determine whether the current tension is close to the preset value; S400, tension adjustment, the single chip control system adjusts the yarn tension to the preset value in a linear manner by adjusting the current of the electromagnetic tensioner according to the deviation between the tension sensor and the preset value.

7. A method for controlling the tension of a winding machine according to claim 6, characterized in that: In S300, the single-chip control system analyzes the image of the image acquisition system, and determines whether the tension state of the yarn is normal based on the image analysis result. The analyzed image information includes whether the curvature and / or density of the yarn in the image meets the normal standard. If there is no abnormality, S400 is executed normally.

8. A method for controlling the tension of a winding machine according to claim 7, characterized in that: The information of yarn abnormality judgment includes yarn being too tight, too loose or twisted; When the image analysis shows that the yarn tension state is normal and matches the tension state information corresponding to the tension feedback from the current tension sensor, it is determined that the yarn is in a normal tension state, and the S400 is continued; When the image analysis shows that the yarn tension state is abnormal, or does not match the tension state information corresponding to the tension feedback from the current tension sensor, it is judged that the yarn is in an abnormal tension state, and S400 is not executed. The single-chip control system controls the winding machine to stop and controls the alarm to send an alarm signal.

Images