Control method of electronic yarn guide device

Abstract

The invention discloses a method for controlling an electronic yarn guide device, which belongs to the technical field of yarn guide control, and comprises the following steps of: acquiring feeding parameters and product parameters which need to be set during production according to the product types of produced yarns, and setting initial state values for a winding motor, a yarn guide motor and a yarn guide based on the set feeding parameters and product parameters; the production state of the spool and the motion states of the winding motor, the yarn guide motor and the yarn guide are detected in real time, the devices are adjusted in real time according to detected information, it is guaranteed that all stages during spool production are close to the optimal production state, various conditions occurring in the yarn guide process are fully considered, and the production efficiency is improved. And the equipment is adjusted according to the conditions, so that the uniformity of the bobbins in the yarn guiding process is maintained, and the final production quality of the bobbins is remarkably improved.

Description

Technical Field

[0001] The present invention relates to the technical field of yarn guiding control, and in particular to a method for controlling an electronic yarn guiding device. Background Art

[0002] The yarn bobbin (also known as yarn dropping) is the first process of the pre-weaving preparation. The task of the yarn bobbin process is to connect the tube yarn (or hank yarn) and wind it into a large-capacity bobbin for warping, reeling, twisting, weft winding, dyeing, and can also be used as the weft bobbin of the shuttleless loom and the bobbin for knitting. The control of the wire guide part is directly related to the overall quality of the yarn bobbin.

[0003] Electronic yarn guiding control technology has appeared on the market. Its yarn guiding speed is faster than traditional technology and its efficiency is relatively high. However, the current electronic yarn guiding system only controls the yarn guide. In the actual yarn guiding process, in order to maintain the uniformity of the yarn guiding, the yarn guiding winding motor and the yarn guiding motor need to be adjusted according to the actual situation to maintain the overall quality of the yarn bobbin. However, the current electronic yarn guiding device only controls the yarn guide, but ignores the influence of the winding motor and the yarn guiding motor on the yarn quality.

[0004] Chinese patent, authorization announcement number: CN 102799139 B, authorization announcement date: April 1, 2015, discloses an electronic wire guide control device and a control method thereof, the device includes a traverse servo motor, a winding motor, and also includes a servo driver connected to the traverse servo motor and the winding motor respectively, the servo driver receives the pulse output by the spindle encoder and the yarn bobbin winding thickness signal output by the spindle angle sensor of the winding motor, and controls the rotation of the traverse servo motor according to the pulse and the yarn bobbin winding thickness signal, but only controls the yarn guide, and the winding motor and the yarn guide motor both maintain a constant speed during the working process, and cannot be feedback-adjusted according to the actual situation, which affects the production quality of the yarn bobbin. Summary of the invention

[0005] In view of the problem in the prior art that the quality of yarn bobbin production products is low due to the lack of real-time feedback adjustment of the winding motor and the yarn guide motor according to the working conditions, the present invention proposes an electronic yarn guide device control method, which obtains the feeding parameters and product parameters that need to be set during production according to the type of product produced by the yarn, sets initial state values ​​for the winding motor, the yarn guide motor and the yarn guide based on the set feeding parameters and product parameters, and detects the production status of the yarn bobbin and the movement status of the winding motor, the yarn guide motor and the yarn guide in real time, and adjusts these devices in real time according to the detected information to ensure that each stage of the yarn bobbin production is close to the optimal production state, fully considers various situations that may occur in the yarn guiding process, and adjusts the equipment according to these situations, thereby maintaining the uniformity of the yarn bobbin during the yarn guiding process and significantly improving the production quality of the final yarn bobbin.

[0006] In a first aspect, a technical solution provided in an embodiment of the present invention is: a method for controlling an electronic yarn guide device, characterized in that it comprises the following steps: S1. Obtain the product type of the produced yarn, and obtain the yarn feeding parameters and product parameters based on the product type; S2, obtaining the initial state values ​​of the winding motor, the yarn guide motor and the yarn guide based on the yarn feeding parameters and the product parameters; S3, real-time detection of the current motion state of the yarn guide, the current feeding parameters of the yarn bobbin and the current product parameters, control the movement of the yarn guide based on the current motion state of the yarn guide and the initial state value; control the movement of the winding motor and the yarn guide motor based on the current feeding parameters of the yarn bobbin and the current product parameters.

[0007] In this scheme, due to the influence of friction and other forces during the yarn winding process, the yarn winding position will not be completely wound according to the position introduced by the yarn guide. At the same time, due to the continuous winding of the yarn, the radius of the yarn tube will continue to increase, so the speed of the yarn guide will also change, thereby affecting the entire production stage. Therefore, through real-time detection and analysis of the current movement state of the yarn guide, the current feeding parameters of the yarn tube and the current product parameters, the current production stage is determined based on the current feeding parameters of the yarn tube and the current product parameters, so as to analyze and obtain the optimal working state of the winding motor and the yarn guide motor in this production stage, including the rotation speed and rotation direction, etc., so that the working state of the winding motor and the yarn guide motor can be adjusted according to the analysis results to make them tend to the optimal working state. Therefore, during the yarn tube production process, the yarn tube produced by the external environment will not fail to meet the production requirements and cause defective products, which greatly improves the product quality of the yarn tube production.

[0008] The feedback adjustment capability of the system is improved, the winding uniformity of the yarn bobbin is further improved, and the production quality of the yarn bobbin is improved.

[0009] Preferably, the feeding parameters include at least yarn tension, and the product parameters include at least yarn bobbin diameter, yarn bobbin height and yarn density.

[0010] In this scheme, in order to produce a yarn tube that meets the requirements, it is necessary to analyze the working conditions of each device of the electronic yarn guiding device at each production stage during the production of the yarn tube and the parameters of the yarn tube itself, such as the yarn tube diameter, yarn tube height, yarn density and other product parameters according to production requirements. The working conditions of each device have a direct impact on the product parameters. Therefore, each device is required to operate strictly in accordance with production requirements. The yarn guide motor is used to obtain raw materials for subsequent production and plays an extremely important role in the production process. If the yarn guide motor guides the yarn too fast or too slow, it will directly affect the overall quality of the yarn tube. Therefore, it is also necessary to obtain the feeding parameters of the yarn tube, such as yarn tension, to ensure the stable acquisition of raw materials for the yarn tube.

[0011] Preferably, in S2, obtaining the initial state values ​​of the winding motor, the yarn guide motor and the yarn guide based on the yarn feeding parameters and the product parameters comprises the following steps: The preset offset and initial position of the yarn guide are obtained based on the yarn tube height in the product parameters; the initial movement speed of the yarn guide, winding motor and yarn guide motor are obtained based on the yarn density and yarn tension in the product parameters and feeding parameters.

[0012] In this scheme, in order to make the final product meet the production requirements, it is necessary to analyze the initial movement speed of the yarn guide, winding motor and yarn guide motor according to the yarn feeding parameters and product parameters. The yarn tube height is determined by the preset offset of the yarn guide, so the preset offset of the yarn guide is equal to the yarn tube height. The yarn density and yarn tension are determined by the movement speed of the yarn guide, winding motor and yarn guide motor. If the yarn tension is too large, the yarn density is high, the movement speed of the yarn guide and winding motor is too fast or the movement speed of the yarn guide motor is too small. If the yarn tension is too small, the yarn density is high, the movement speed of the yarn guide and winding motor is too slow or the movement speed of the yarn guide motor is too fast, all of which will affect the product quality of the yarn tube. Therefore, it is necessary to strictly control the movement status of the yarn guide, winding motor and yarn guide motor, so as to improve the overall winding uniformity of the yarn tube and improve product quality.

[0013] Preferably, in S3, the current motion state of the yarn guide is detected in real time, and the motion of the yarn guide is controlled based on the current motion state of the yarn guide and the initial state value, including the following steps: The offset of the yarn guide relative to the initial position in the initial state value is detected in real time. When the offset of the yarn guide reaches the preset offset, the movement direction is reversed until the yarn guide returns to the initial position and then the movement direction is reversed again to perform a reciprocating motion.

[0014] In this scheme, in order to control the height of the yarn tube, the movement path of the yarn guide is limited, and its initial position is used as the starting point of the yarn tube. The preset offset is equal to the height of the yarn tube. When the movement distance of the yarn guide reaches the preset offset, the movement direction is reversed and returns to the initial position. In this way, one cycle of the yarn guiding process is completed. During the movement of the yarn guide, it can be approximately regarded as a uniform motion throughout the entire process, which can ensure that the yarn is evenly wound and that the yarn will not be wound out of the yarn tube range, thereby ensuring production safety.

[0015] Preferably, in S3, the current feeding parameters of the yarn drum are detected in real time, and the movement of the winding motor and the yarn guide motor is controlled based on the current feeding parameters of the yarn drum, including the following steps: Real-time detection of the current yarn tension in the current feeding parameters of the bobbin and analysis of the current yarn tension; If the current yarn tension is on an upward trend and the tension magnitude is higher than the maximum value of the preset tension range, it is judged that the winding motor rotates too fast, and the rotation speed of the winding motor is reduced, or the yarn guide motor rotates too slowly and the rotation speed of the yarn guide motor is increased; if the current yarn tension is on a downward trend and the tension magnitude is less than the minimum value of the preset tension range, it is judged that the winding motor rotates too slowly, and the rotation speed of the winding motor is increased, or the yarn guide motor rotates too fast and the rotation speed of the yarn guide motor is reduced; if the current yarn tension is within the preset tension range, the rotation speeds of the yarn guide motor and the winding motor are kept unchanged.

[0016] In this scheme, during the yarn winding process, if the speeds of the winding motor and the yarn guide motor are not well coordinated, the yarn tube will drag the yarn during winding, resulting in the yarn tube being wound too tightly, or the yarn introduction speed is greater than the winding speed, resulting in the yarn tube being wound too loosely, seriously affecting the production quality of the yarn tube. Therefore, by real-time detection of the current feed parameters of the yarn tube, it can be determined whether the yarn is in a state of being too tight or too loose when being wound, so as to adjust the speeds of the winding motor and the yarn guide motor so that the speeds of the two motors can cooperate with each other, so that the yarn can be evenly wound on the yarn tube in a state of neither tight nor loose, thereby improving the production quality of the yarn tube.

[0017] Preferably, in S3, the current product parameters of the yarn drum are detected in real time, and the movement of the winding motor and the yarn guide motor is controlled based on the detected current product parameters of the yarn drum, including the following steps: During a complete reciprocating motion cycle of the yarn guide, the rotational angular velocity of the winding motor is obtained at every moment; During a complete reciprocating motion cycle of the yarn guide, the yarn movement speed of the yarn wound on the yarn drum is obtained at every moment; the distance between the surface of the yarn drum and the center of the yarn drum at each moment is calculated according to the yarn movement speed of the yarn wound on the yarn drum and the rotational angular velocity of the winding motor; The yarn thickness is obtained by averaging the distance between the yarn surface and the yarn center at each moment, and the current yarn diameter in the current product parameters of the yarn is calculated based on the yarn thickness; If the current yarn bobbin diameter is equal to the yarn bobbin diameter of the product parameter, the winding motor, yarn guide motor and yarn guide are controlled to linearly decelerate until the speed is 0.

[0018] In this scheme, in order to detect the thickness of the yarn tube and keep the thickness of the whole yarn tube reaching the preset parameters instead of the thickness of a part reaching the preset parameters, a complete reciprocating motion cycle of the yarn guide is taken when detecting the thickness of the yarn tube. The radius of a circle of yarn tube corresponding to the position of the yarn guide at each moment is calculated in this motion cycle. The radius at each moment is averaged to obtain the overall thickness of the yarn tube, which can prevent the problem of uneven yarn tube thickness or overall yarn tube parameters not meeting production requirements when some yarn tubes reach the thickness in the preset parameters and significantly improve the production quality of the yarn tube. In order to make the parameters of the yarn tube finally produced meet the production requirements, it is necessary to detect the yarn tube in real time during the yarn guiding process, and compare the detected data with the parameter data in the parameter management module in real time to prevent the produced yarn tube from not meeting the product parameters. When the data of the yarn tube meets the preset parameters, the electronic yarn guiding device stops working and waits for the production of the next yarn tube. In this way, the accuracy of the product parameters of the yarn tube can be improved, thereby improving the production quality of the product in disguise.

[0019] Preferably, the motion path of the yarn guide in one reciprocating motion cycle includes an acceleration section, a constant speed section and a deceleration section; The acceleration rate of the yarn guide in the acceleration section and the deceleration rate in the deceleration section are both constant values, and the speeds of the winding motor and the yarn guide motor are adjusted based on the movement path of the yarn guide.

[0020] In this scheme, since the yarn guide is used to control the position of the introduced yarn, when the yarn guide is started and moves back and forth, the direction of movement will inevitably change at the turning point of the movement, and there will inevitably be a stage where the speed decreases and the speed increases to a uniform motion stage. This will affect the uniformity of the yarn winding of the yarn bobbin at the reciprocating motion switching node position. Therefore, setting the acceleration rate in the acceleration stage and the deceleration rate in the deceleration stage to constant can facilitate the winding motor and the yarn guide motor to adapt to the speed adjustment amplitude when the yarn guide switches to the reciprocating motion, improve the speed of the electronic yarn guide system adjusted according to feedback, solve the problem of uneven yarn winding on the yarn bobbin caused by changes in the yarn guide speed, and improve the production quality of the yarn bobbin.

[0021] Preferably, adjusting the speed of the winding motor and the yarn guide motor based on the movement path of the yarn guide comprises the following steps: if the yarn guide is in the acceleration section, increasing the speed of the winding motor based on the acceleration rate of the yarn guide, and simultaneously increasing the speed of the yarn guide motor; If the yarn guide is in the uniform speed section, the speeds of the winding motor and the yarn guide motor remain unchanged; If the yarn guide is in the deceleration section, the speed of the winding motor is reduced based on the deceleration rate of the yarn guide, and the speed of the yarn guide motor is reduced synchronously.

[0022] In this solution, in order to solve the problem of uneven yarn winding caused by the reciprocating motion of the yarn guide, the speeds of the winding motor and the yarn guide motor are changed synchronously according to the three different speed change stages of the yarn guide, so that the yarn can be evenly wound throughout the winding process, thereby improving the uniformity of yarn winding in the yarn bobbin and improving the production quality of the yarn bobbin.

[0023] Beneficial effects of the present invention: (1) The present invention obtains the current feeding parameters of the yarn bobbin and the current product parameters in real time, and adjusts the speed of the winding motor and the yarn guide motor according to the current feeding parameters of the yarn bobbin and the current product parameters, so that the yarn is evenly wound onto the yarn bobbin during the yarn guiding process, thereby improving the production quality of the yarn bobbin; (2) The present invention detects the distance between the surface of the yarn tube and the center of the yarn tube at each moment in a complete reciprocating motion cycle of the yarn guide, calculates the average value of the distance between the surface of the yarn tube and the center of the yarn tube at each moment to obtain the diameter of the yarn tube, and compares the obtained yarn tube diameter with the product parameters to produce the yarn tube, thereby reducing the probability of uneven thickness during yarn tube production and improving the production accuracy of the yarn tube; (3) The present invention adjusts the movement speeds of the winding motor and the yarn guide motor according to the speed change of the yarn guide when changing direction, so that the yarn at the node where the yarn guide changes the movement direction is wound evenly, thereby improving the product quality of the yarn bobbin.

[0024] The above invention content is only an overview of the technical solution of the present invention. In order to more clearly understand the technical means of the present invention, it can be implemented according to the contents of the specification. In order to make the above and other purposes, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are listed below. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Other features, objects and advantages of the present invention will become more apparent by reading the detailed description of non-limiting embodiments made with reference to the following drawings. The drawings are only for the purpose of illustrating preferred embodiments and are not to be considered as limiting the present invention. Also, the same reference symbols are used throughout the drawings to represent the same parts.

[0026] Figure 1 This is a flow chart of the control method of the electronic yarn guide device of the present invention; Figure 2 This is a flow chart of adjusting the speed of the winding motor and the yarn guide motor according to the current feeding parameters of the present invention. DETAILED DESCRIPTION

[0027] In order to make the objectives, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific implementation method described herein is only an optimal embodiment of the present invention, which is only used to explain the present invention and does not limit the scope of protection of the present invention. All other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0028] Before discussing the exemplary embodiments in more detail, it should be mentioned that some exemplary embodiments are described as processes or methods depicted as flow charts. Although the flow charts describe the operations (or steps) as sequential processes, many of the operations (or steps) therein can be implemented in parallel, concurrently, or simultaneously. In addition, the order of the operations can be rearranged. The process can be terminated when its operation is completed, but can also have additional steps not included in the drawings; the process can correspond to a method, function, procedure, subroutine, subprogram, etc.

[0029] Example: Figure 1 As shown, in order to solve the problem in the prior art that the quality of yarn bobbin products is low due to the lack of real-time feedback adjustment of the winding motor and the yarn guide motor according to the working conditions, this embodiment 1 provides a control method for an electronic yarn guide device, comprising the following steps: S1: Obtain the product type of the bobbin to be produced, and obtain the feeding parameters and product parameters of the bobbin based on the product type.

[0030] In this embodiment, the feeding parameters at least include the yarn tension, and the product parameters at least include the yarn bobbin diameter, the yarn bobbin height and the yarn density.

[0031] In order to produce a yarn bobbin that meets the requirements, the present embodiment needs to analyze the working conditions of each device of the electronic yarn guiding device at each production stage during the production of the yarn bobbin and the parameters of the yarn bobbin itself, such as product parameters such as the yarn bobbin diameter, yarn bobbin height and yarn density, according to production requirements. The working conditions of each device have a direct impact on the product parameters, so each device is required to operate strictly in accordance with production requirements. The yarn guiding motor is used to obtain raw materials for subsequent production and plays an extremely important role in the production process. If the yarn guiding speed of the yarn guiding motor is too fast or too slow, it will directly affect the overall quality of the yarn bobbin. Therefore, it is also necessary to obtain the feeding parameters of the yarn bobbin, such as yarn tension, to ensure stable acquisition of raw materials for the yarn bobbin.

[0032] S2: Acquire the initial state values ​​of the winding motor, the yarn guide motor and the yarn guide based on the yarn bobbin feeding parameters and the product parameters.

[0033] In this embodiment, the initial state values ​​of the winding motor, the yarn guide motor and the yarn guide are obtained based on the yarn feeding parameters and the product parameters, including the following steps: The preset offset and initial position of the yarn guide are obtained based on the yarn tube height in the product parameters; the initial movement speed of the yarn guide, winding motor and yarn guide motor are obtained based on the yarn density and yarn tension in the product parameters and feeding parameters.

[0034] In this embodiment, in order to make the final product meet the production requirements, it is necessary to analyze the initial movement speed of the yarn guide, winding motor and yarn guide motor according to the yarn feeding parameters and product parameters. The height of the yarn tube is determined by the preset offset of the yarn guide, so the preset offset of the yarn guide is equal to the height of the yarn tube. The yarn density and yarn tension are determined by the movement speed of the yarn guide, winding motor and yarn guide motor. If the yarn tension is too large, the yarn density is high, the movement speed of the yarn guide and winding motor is too fast or the movement speed of the yarn guide motor is too small. If the yarn tension is too small, the yarn density is high, the movement speed of the yarn guide and winding motor is too slow or the movement speed of the yarn guide motor is too fast, all of which will affect the product quality of the yarn tube. Therefore, it is necessary to strictly control the movement conditions of the yarn guide, winding motor and yarn guide motor, so as to improve the overall winding uniformity of the yarn tube and improve product quality.

[0035] S3: Real-time detection of the current motion state of the yarn guide, the current feeding parameters of the yarn bobbin and the current product parameters, and control of the motion of the yarn guide based on the current motion state of the yarn guide and the initial state value; control of the motion of the winding motor and the yarn guide motor based on the current feeding parameters of the yarn bobbin and the current product parameters.

[0036] In this embodiment, the current motion state of the yarn guide is detected in real time, and the motion of the yarn guide is controlled based on the current motion state and the initial state value of the yarn guide, including the following steps: The offset of the yarn guide relative to the initial position in the initial state value is detected in real time. When the offset of the yarn guide reaches the preset offset, the movement direction is reversed until the yarn guide returns to the initial position and then the movement direction is reversed again to perform a reciprocating motion.

[0037] In order to control the height of the yarn tube, the present embodiment limits the movement path of the yarn guide, takes its initial position as the starting point of the yarn tube, and its preset offset is equal to the height of the yarn tube. When the movement distance of the yarn guide reaches the preset offset, the movement direction is reversed and returns to the initial position, thus completing one cycle of the yarn guiding process. During the movement of the yarn guide, it can be approximately regarded as a uniform motion throughout the entire process, which can ensure that the yarn is evenly wound and that the yarn will not be wound out of the range of the yarn tube, thereby ensuring production safety.

[0038] In this embodiment, the current feeding parameters of the yarn bobbin are detected in real time, and the movement of the winding motor and the yarn guide motor is controlled based on the current feeding parameters of the yarn bobbin, including the following steps: Real-time detection of the current yarn tension in the current feeding parameters of the bobbin and analysis of the current yarn tension; If the current yarn tension is on an upward trend and the tension magnitude is higher than the maximum value of the preset tension range, it is judged that the winding motor rotates too fast, and the rotation speed of the winding motor is reduced, or the yarn guide motor rotates too slowly and the rotation speed of the yarn guide motor is increased; if the current yarn tension is on a downward trend and the tension magnitude is less than the minimum value of the preset tension range, it is judged that the winding motor rotates too slowly, and the rotation speed of the winding motor is increased, or the yarn guide motor rotates too fast and the rotation speed of the yarn guide motor is reduced; if the current yarn tension is within the preset tension range, the rotation speeds of the yarn guide motor and the winding motor are kept unchanged.

[0039] In the present embodiment, during the yarn winding process, if the speeds of the winding motor and the yarn guide motor are not well coordinated, the yarn tube will drag the yarn during winding, resulting in the yarn tube being wound too tightly, or the yarn introduction speed being greater than the winding speed, resulting in the yarn tube being wound too loosely, seriously affecting the production quality of the yarn tube. Therefore, by real-time detection of the current feeding parameters of the yarn tube, it is possible to determine whether the yarn is in a state of being too tight or too loose when being wound, so as to adjust the speeds of the winding motor and the yarn guide motor so that the speeds of the two motors can coordinate with each other, so that the yarn can be evenly wound on the yarn tube in a state of neither tight nor loose, thereby improving the production quality of the yarn tube.

[0040] In this embodiment, the current product parameters of the yarn bobbin are detected in real time, and the movement of the winding motor and the yarn guide motor is controlled based on the detected current product parameters of the yarn bobbin, including the following steps: During a complete round trip motion cycle T of the yarn guide, the rotational angular velocity ω of the winding motor is obtained at every time t. t , T = nt; in a complete round trip cycle T of the yarn guide, the yarn movement speed v of the yarn wound on the yarn tube is obtained at every time t t ; According to the yarn movement speed v of the yarn wound on the yarn tube at each moment t and the angular velocity of the winding motor ω t Calculate the distance d between the yarn tube surface and the yarn tube center at each moment t , d t =v t / ω t , and obtain the distance D between the surface of the yarn tube and the center of the yarn tube when the yarn tube is not wound. The distance d between the surface of the yarn tube and the center of the yarn tube at each moment will be calculated. t Subtract the distance D from the surface of the yarn tube to the center of the yarn tube to get the thickness r of the yarn tube at each moment. t , the thickness of the yarn tube at each moment r tThe average value is calculated to obtain the thickness r of the yarn tube, and the diameter of the yarn tube is calculated based on the thickness of the yarn tube; If the current yarn bobbin diameter is equal to the yarn bobbin diameter of the product parameter, the winding motor, yarn guide motor and yarn guide are controlled to linearly decelerate until the speed is 0.

[0041] In order to detect the thickness of the yarn tube and maintain the thickness of the entire yarn tube to reach the preset parameters instead of the thickness of a certain part reaching the preset parameters, this embodiment takes a complete reciprocating motion cycle of the yarn guide when detecting the thickness of the yarn tube. During this motion cycle, the radius of a circle of the yarn tube at the corresponding position of the yarn guide at each moment is calculated, and the radius at each moment is averaged to obtain the overall thickness of the yarn tube. This can prevent the problem of uneven yarn tube thickness or overall yarn tube parameters not meeting production requirements due to stopping winding when some yarn tubes reach the thickness in the preset parameters, thereby significantly improving the production quality of the yarn tube. In order to make the parameters of the yarn tube finally produced meet the production requirements, it is necessary to detect the yarn tube in real time during the yarn guiding process, and compare the detected data with the parameter data in the parameter management module in real time to prevent the produced yarn tube from not meeting the product parameters. When the data of the yarn tube meets the preset parameters, the electronic yarn guiding device stops working and waits for the production of the next yarn tube. In this way, the accuracy of the product parameters of the produced yarn tube can be improved, thereby improving the production quality of the product in disguised form.

[0042] In this embodiment, the movement path of the yarn guide in a reciprocating motion cycle includes an acceleration section, a uniform speed section and a deceleration section; the acceleration rate of the yarn guide in the acceleration section and the deceleration rate in the deceleration section are both constant values, and the speed of the winding motor and the yarn guide motor are adjusted based on the movement path of the yarn guide.

[0043] In this embodiment, since the yarn guide is used to control the position of the introduced yarn, when the yarn guide is started and moves back and forth, the direction of movement will inevitably change at the turning point of the movement, and there will inevitably be a stage where the speed decreases and the speed increases to a uniform motion stage. This will affect the uniformity of the yarn winding of the yarn bobbin at the reciprocating motion switching node position. Therefore, setting the acceleration rate in the acceleration stage and the deceleration rate in the deceleration stage to constant can facilitate the winding motor and the yarn guide motor to adapt to the speed adjustment amplitude when the yarn guide switches to the reciprocating motion, improve the speed of the electronic yarn guide system adjusted according to feedback, solve the problem of uneven yarn winding on the yarn bobbin caused by changes in the yarn guide speed, and improve the production quality of the yarn bobbin.

[0044] In this embodiment, the speeds of the winding motor and the yarn guide motor are adjusted based on the motion path of the yarn guide, including the following steps: if the yarn guide is in the acceleration section, the speed of the winding motor is increased based on the acceleration rate of the yarn guide, and the speed of the yarn guide motor is increased synchronously; If the yarn guide is in the uniform speed section, the speeds of the winding motor and the yarn guide motor remain unchanged; If the yarn guide is in the deceleration section, the speed of the winding motor is reduced based on the deceleration rate of the yarn guide, and the speed of the yarn guide motor is reduced synchronously.

[0045] In order to solve the problem of uneven yarn winding caused by the reciprocating motion of the yarn guide, this embodiment allows the speeds of the winding motor and the yarn guide motor to change synchronously according to the three different speed change stages of the yarn guide, so that the yarn can be evenly wound throughout the winding process, thereby improving the uniformity of yarn winding in the yarn bobbin and improving the production quality of the yarn bobbin.

[0046] In this embodiment, due to the influence of friction and other forces during the yarn winding process, the yarn winding position will not be completely wound according to the position introduced by the yarn guide. At the same time, due to the continuous winding of the yarn, the radius of the yarn tube will continue to increase, so the speed of the yarn guide will also change, thereby affecting the entire production stage. Therefore, through real-time detection and analysis of the current movement state of the yarn guide, the current feeding parameters of the yarn tube and the current product parameters, the current production stage is determined based on the current feeding parameters of the yarn tube and the current product parameters, so as to analyze and obtain the optimal working state of the winding motor and the yarn guide motor in this production stage, including the rotation speed and rotation direction, etc., so that the working state of the winding motor and the yarn guide motor can be adjusted according to the analysis results to make them tend to the optimal working state. In the process of yarn tube production, the yarn tube produced by the external environment during the production process will not meet the production requirements and cause defective products, thereby greatly improving the product quality of yarn tube production.

[0047] It can be seen from the above embodiments that at least the following substantial effects are achieved: (1) The present invention obtains the current feeding parameters of the yarn bobbin and the current product parameters in real time, and adjusts the speed of the winding motor and the yarn guide motor according to the current feeding parameters of the yarn bobbin and the current product parameters, so that the yarn is evenly wound onto the yarn bobbin during the yarn guiding process, thereby improving the production quality of the yarn bobbin; (2) The present invention detects the distance between the surface of the yarn tube and the center of the yarn tube at each moment in a complete reciprocating motion cycle of the yarn guide, calculates the average value of the distance between the surface of the yarn tube and the center of the yarn tube at each moment to obtain the diameter of the yarn tube, and compares the obtained yarn tube diameter with the product parameters to produce the yarn tube, thereby reducing the probability of uneven thickness during yarn tube production and improving the production accuracy of the yarn tube; (3) The present invention adjusts the movement speeds of the winding motor and the yarn guide motor according to the speed change of the yarn guide when changing direction, so that the yarn at the node where the yarn guide changes the movement direction is wound evenly, thereby improving the product quality of the yarn bobbin.

[0048] The specific implementation described above is a preferred implementation of an electronic yarn guide device control method of the present invention, and is not intended to limit the specific implementation scope of the present invention. The scope of the present invention includes but is not limited to this specific implementation. All equivalent changes made in accordance with the shape and structure of the present invention are within the protection scope of the present invention.

Claims

1. A method for controlling an electronic yarn guide device, characterized in that: The following steps are involved: S1. Obtain the product type of the bobbin to be produced, and obtain the feeding parameters and product parameters of the bobbin based on the product type; S2, obtaining the initial state values ​​of the winding motor, the yarn guide motor and the yarn guide based on the yarn bobbin feeding parameters and the product parameters; S3, real-time detection of the current motion state of the yarn guide, the current feeding parameters of the yarn bobbin and the current product parameters, and control of the motion of the yarn guide based on the current motion state and initial state value of the yarn guide; The movement of the winding motor and the yarn guide motor is controlled based on the current feeding parameters of the yarn tube and the current product parameters.

2. The method for controlling an electronic yarn guide device according to claim 1, characterized in that: The feeding parameters include at least yarn tension, and the product parameters include at least yarn cone diameter, yarn cone height and yarn density.

3. The electronic yarn guide device control method according to claim 1, characterized in that: In S2, the initial state values ​​of the winding motor, the yarn guide motor and the yarn guide are obtained based on the yarn bobbin feeding parameters and the product parameters, including the following steps: The preset offset and initial position of the yarn guide are obtained based on the yarn tube height in the product parameters; the initial movement speed of the yarn guide, winding motor and yarn guide motor are obtained based on the yarn density and yarn tension in the product parameters and feeding parameters.

4. The method for controlling an electronic yarn guide device according to claim 1, characterized in that: In S3, the current motion state of the yarn guide is detected in real time, and the motion of the yarn guide is controlled based on the current motion state and the initial state value of the yarn guide, including the following steps: The offset of the yarn guide relative to the initial position in the initial state value is detected in real time. When the offset of the yarn guide reaches the preset offset, the movement direction is reversed until the yarn guide returns to the initial position and then the movement direction is reversed again to perform a reciprocating motion.

5. The method for controlling an electronic yarn guide device according to claim 1, characterized in that: In S3, the current feeding parameters of the yarn bobbin are detected in real time, and the movement of the winding motor and the yarn guide motor is controlled based on the current feeding parameters of the yarn bobbin, including the following steps: Real-time detection of the current yarn tension in the current feeding parameters of the bobbin and analysis of the current yarn tension; If the current yarn tension is on an upward trend and the tension magnitude is higher than the maximum value of the preset tension range, it is judged that the winding motor rotates too fast and the winding motor rotates too fast, or it is judged that the yarn guide motor rotates too slow and the yarn guide motor rotates too fast; If the current yarn tension is in a downward trend and the tension magnitude is less than the minimum value of the preset tension range, it is judged that the rotation speed of the winding motor is too slow, and the rotation speed of the winding motor is increased, or it is judged that the rotation speed of the yarn guide motor is too fast and the rotation speed of the yarn guide motor is reduced; If the current yarn tension is within the preset tension range, the rotation speeds of the yarn guide motor and the winding motor are kept unchanged.

6. The method for controlling an electronic yarn guide device according to claim 1, characterized in that: In S3, the current product parameters of the yarn bobbin are detected in real time, and the movement of the winding motor and the yarn guide motor is controlled based on the detected current product parameters of the yarn bobbin, including the following steps: During a complete reciprocating motion cycle of the yarn guide, the rotational angular velocity of the winding motor is obtained at every moment; During a complete reciprocating motion cycle of the yarn guide, the yarn movement speed of the yarn wound on the yarn drum is obtained at every moment; the distance between the surface of the yarn drum and the center of the yarn drum at each moment is calculated according to the yarn movement speed of the yarn wound on the yarn drum and the rotational angular velocity of the winding motor; The yarn thickness is obtained by averaging the distance between the yarn surface and the yarn center at each moment, and the current yarn diameter in the current product parameters of the yarn is calculated based on the yarn thickness; If the current yarn bobbin diameter is equal to the yarn bobbin diameter of the product parameter, the winding motor, yarn guide motor and yarn guide are controlled to linearly decelerate until the speed is 0.

7. A method for controlling an electronic yarn guide device according to any one of claims 1 to 6, characterized in that: The motion path of the yarn guide in a reciprocating motion cycle includes an acceleration section, a uniform speed section and a deceleration section; The acceleration rate of the yarn guide in the acceleration section and the deceleration rate in the deceleration section are both constant values, and the speeds of the winding motor and the yarn guide motor are adjusted based on the movement path of the yarn guide.

8. The method for controlling an electronic yarn guide device according to claim 7, characterized in that: The speed of the winding motor and the yarn guide motor is adjusted based on the motion path of the yarn guide, including the following steps: If the yarn guide is in the acceleration section, the speed of the winding motor is increased based on the acceleration rate of the yarn guide, and the speed of the yarn guide motor is increased simultaneously; If the yarn guide is in the uniform speed section, the speeds of the winding motor and the yarn guide motor remain unchanged; If the yarn guide is in the deceleration section, the speed of the winding motor is reduced based on the deceleration rate of the yarn guide, and the speed of the yarn guide motor is reduced synchronously.

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