Electronic yarn guide device control method

Abstract

The application discloses an electronic yarn guide device control method, and belongs to the technical field of yarn guide control. The method obtains feeding parameters and product parameters that need to be set during production according to product types of produced yarns, sets initial state values of a winding motor, a yarn guide motor and a yarn guide device based on the set feeding parameters and product parameters, and detects the production state of a yarn drum and the motion state of the winding motor, the yarn guide motor and the yarn guide device in real time, and adjusts these devices in real time according to the detected information, so that each stage of the yarn drum production is close to the optimal production state. Various situations occurring in the yarn guide process are fully considered, and the devices are adjusted according to these situations, the uniformity of the yarn drum in the yarn guide process is maintained, and the production quality of the final yarn drum is significantly improved.

Description

Technical Field

[0001] This invention relates to the field of yarn guiding control technology, and more specifically, to a control method for an electronic yarn guiding device. Background Technology

[0002] The yarn bobbin (also known as doffing) is the first step in the pre-weaving preparation process. The primary task of the yarn bobbin process is to connect the bobbins (or skeins) and wind them into a large-capacity bobbin for warping, spinning, twisting, weft winding, and dyeing. It can also be used as a weft bobbin for shuttleless looms and for knitting. The quality of the yarn guide section directly affects the overall quality of the yarn bobbin.

[0003] Electronic yarn guiding technology has emerged in the market, which offers faster yarn guiding speeds and higher efficiency compared to traditional technologies. However, current electronic yarn guiding systems only control the yarn guide. In actual yarn guiding, both the winding motor and the guiding motor need to be adjusted according to the actual situation to maintain the uniformity of the yarn guide and thus maintain the overall quality of the yarn bobbin. However, current electronic yarn guiding devices only control the yarn guide and ignore the impact of the winding motor and the guiding motor on the quality of the yarn.

[0004] Chinese Patent, Authorization Announcement No.: CN 102799139 B, Authorization Announcement Date: April 1, 2015, discloses an electronic yarn guide control device and its control method. The device includes a traverse servo motor and a winding motor, and also includes servo drivers connected to the traverse servo motor and the winding motor respectively. The servo drivers receive pulses output by the spindle encoder and yarn bobbin winding thickness signals output by the spindle angle sensor of the winding motor. The rotation of the traverse servo motor is controlled according to the pulses and the yarn bobbin winding thickness signals. However, only the yarn guide is controlled. The winding motor and the yarn guide motor maintain a constant speed during operation and cannot be adjusted according to the actual situation, which affects the production quality of the yarn bobbin. Summary of the Invention

[0005] This invention addresses the problem of low product quality in existing yarn bobbin production due to the lack of real-time feedback and adjustment of the winding motor and yarn guide motor based on their operating conditions. It proposes an electronic yarn guide device control method. This method obtains the feed parameters and product parameters required for production based on the type of yarn being produced. Initial state values ​​are set for the winding motor, yarn guide motor, and yarn guide based on these parameters. The production status of the yarn bobbin and the movement status of the winding motor, yarn guide motor, and yarn guide are monitored in real time. These devices are adjusted in real-time based on the detected information, ensuring that each stage of yarn bobbin production is close to optimal. This method fully considers various situations that may occur during yarn guiding and adjusts the equipment accordingly, maintaining the uniformity of the yarn bobbin during guiding and significantly improving the final product quality.

[0006] In a first aspect, one technical solution provided in the embodiments of the present invention is: a control method for an electronic yarn guiding device, characterized by comprising the following steps:

[0007] S1. Obtain the product type of the yarn being produced, and obtain the yarn feed parameters and product parameters based on the product type;

[0008] S2. Obtain the initial state values ​​of the winding motor, the yarn guiding motor, and the yarn guide based on the yarn feed parameters and product parameters;

[0009] S3. Real-time detection of the current motion state of the yarn guide, the current feed parameters of the yarn bobbin, and the current product parameters; control the movement of the yarn guide based on the current motion state and initial state value of the yarn guide; control the movement of the winding motor and the yarn guide motor based on the current feed parameters of the yarn bobbin and the current product parameters.

[0010] In this solution, due to the influence of friction and other forces during yarn winding, the yarn winding position may not perfectly align with the position guided by the yarn guide. Simultaneously, as the yarn continuously winds, the radius of the yarn bobbin increases, causing changes in the guiding speed and impacting the entire production process. Therefore, by real-time monitoring and analysis of the current movement state of the yarn guide, the current feed parameters of the yarn bobbin, and the current product parameters, the current production stage can be determined. This analysis reveals the optimal operating state of the winding motor and the yarn guide motor for that stage, including rotational speed and direction. Based on the analysis results, the operating states of the winding motor and the yarn guide motor can be adjusted to approach their optimal operating state. This prevents the production of yarn bobbins from being affected by external environmental factors, thus avoiding defective products and significantly improving the overall quality of yarn bobbin production.

[0011] This improved the system's feedback adjustment capability, further enhanced the winding uniformity of the yarn bobbin, and improved the production quality of the yarn bobbin.

[0012] Preferably, the feed parameters include at least yarn tension, and the product parameters include at least yarn bobbin diameter, yarn bobbin height, and yarn density.

[0013] In this solution, to produce a yarn bobbin that meets the requirements, it is necessary to analyze the working status of each piece of the electronic yarn guiding device at each stage of yarn bobbin production, as well as the parameters of the yarn bobbin itself, such as bobbin diameter, bobbin height, and yarn density. The working status of each piece of equipment has a direct impact on the product parameters, so each piece of equipment must operate strictly according to the production requirements. The yarn guiding motor plays an extremely important role in the production process as it obtains raw materials to provide raw materials for subsequent production. 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 feed parameters of the yarn bobbin, such as yarn tension, to ensure stable acquisition of raw materials for the yarn bobbin.

[0014] Preferably, in step S2, the initial state values ​​of the winding motor, the yarn guiding motor, and the yarn guide are obtained based on the yarn feed parameters and product parameters, including the following steps:

[0015] The preset offset and initial position of the yarn guide are obtained based on the yarn bobbin height in the product parameters; the initial movement speed of the yarn guide, winding motor and yarn guiding motor are obtained based on the yarn density and yarn tension in the product parameters and feed parameters.

[0016] In this solution, to ensure the final product meets production requirements, the initial movement speeds of the yarn guide, winding motor, and yarn guiding motor need to be analyzed based on the yarn feed parameters and product parameters. The yarn bobbin height is determined by the preset offset of the yarn guide, therefore the preset offset of the yarn guide is equal to the yarn bobbin height. The yarn density and yarn tension are determined by the movement speeds of the yarn guide, winding motor, and yarn guiding motor. If the yarn tension is too high, the yarn density will be high, and the movement speed of the yarn guide and winding motor will be too fast or too slow. Conversely, if the yarn tension is too low, the yarn density will be high, and the movement speed of the yarn guide and winding motor will be too slow or too fast. Both of these factors will affect the product quality of the yarn bobbin. Therefore, it is necessary to strictly control the movement of the yarn guide, winding motor, and yarn guiding motor to improve the overall winding uniformity of the yarn bobbin and enhance product quality.

[0017] Preferably, in step 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, including the following steps:

[0018] 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 make a back-and-forth motion.

[0019] In this solution, to control the height of the yarn bobbin, the movement path of the yarn guide is limited, and its initial position is taken as the starting point of the yarn bobbin. Its preset offset is equal to the height of the yarn bobbin. When the movement distance of the yarn guide reaches the preset offset, the movement direction is reversed and it returns to the initial position. This completes one cycle of the yarn guiding process. During the movement of the yarn guide, it can be approximately regarded as a uniform movement throughout the entire process, which can ensure that the yarn is wound evenly and that the yarn will not be wound out of the yarn bobbin range, thus ensuring production safety.

[0020] Preferably, in step S3, the current feed parameters of the yarn bobbin are detected in real time, and the movement of the winding motor and the yarn guiding motor is controlled based on the current feed parameters of the yarn bobbin, including the following steps:

[0021] Real-time detection of the current yarn tension in the current feed parameters of the yarn bobbin, and analysis of the current yarn tension;

[0022] If the current yarn tension is on an upward trend and the tension is higher than the maximum value of the preset tension range, the winding motor is judged to be rotating too fast, and its rotation speed is reduced; or the yarn guide motor is judged to be rotating too slow, and its rotation speed is increased. If the current yarn tension is on a downward trend and the tension is lower than the minimum value of the preset tension range, the winding motor is judged to be rotating too slow, and its rotation speed is increased; or the yarn guide motor is judged to be rotating too fast, and its rotation speed 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 remain unchanged.

[0023] In this solution, if the speeds of the winding motor and the yarn guiding motor are not well coordinated during the yarn winding process, the yarn bobbin will drag the yarn during the winding motion, resulting in overly tight winding or the yarn guide speed exceeding the winding speed, resulting in overly loose winding. This severely affects the production quality of the yarn bobbin. Therefore, by real-time detection of the current feed parameters of the yarn bobbin, it can be determined whether the yarn is in an overly tight or overly loose state during winding. This allows for adjustment of the speeds of the winding motor and the yarn guiding motor, ensuring that the speeds of the two motors can coordinate with each other. This results in the yarn being evenly wound on the yarn bobbin in a state that is neither too tight nor too loose, thereby improving the production quality of the yarn bobbin.

[0024] Preferably, in step S3, the current product parameters of the yarn bobbin are detected in real time, and the movement of the winding motor and the yarn guiding motor is controlled based on the detected current product parameters of the yarn bobbin, including the following steps:

[0025] During one complete round-trip motion cycle of the yarn guide, the rotational angular velocity of the winding motor is acquired at each moment.

[0026] During one complete round-trip motion cycle of the yarn guide, the speed of the yarn wound on the yarn bobbin is acquired at each moment; the distance between the surface of the yarn bobbin and the center of the yarn bobbin at each moment is calculated based on the speed of the yarn wound on the yarn bobbin and the rotational angular velocity of the winding motor.

[0027] The yarn bobbin thickness is obtained by averaging the distance from the surface of the yarn bobbin to the center of the yarn bobbin at each moment, and the current yarn bobbin diameter in the current product parameters is calculated based on the yarn bobbin thickness.

[0028] If the current yarn bobbin diameter is equal to the yarn bobbin diameter in the product parameters, control the winding motor, yarn guide motor, and yarn guide to decelerate linearly until the speed is 0.

[0029] In this solution, to detect the thickness of the yarn bobbin and ensure that the overall thickness of the yarn bobbin meets the preset parameters rather than just a portion, the thickness detection process involves capturing one complete round-trip cycle of the yarn guide. Within this cycle, the radius of the yarn bobbin at each position of the yarn guide is calculated, and the average of these radii yields the overall thickness of the yarn bobbin. This prevents uneven yarn bobbin thickness or overall parameters failing to meet production requirements due to partial yarn bobbin thickness reaching the preset parameters and subsequent winding halt, significantly improving yarn bobbin production quality. To ensure the final produced yarn bobbin parameters meet production requirements, real-time detection of the yarn bobbin is performed during the yarn guiding process. The detected data is compared in real-time with the parameter management module to prevent produced yarn bobbins from failing to meet product parameters. Once the yarn bobbin data meets the preset parameters, the electronic yarn guide device stops operating, awaiting the production of the next yarn bobbin. This method improves the accuracy of the produced yarn bobbin parameters, indirectly enhancing product quality.

[0030] Preferably, the movement path of the yarn guide in one round-trip motion cycle includes an acceleration section, a constant speed section, and a deceleration section;

[0031] The acceleration rate of the yarn guide in the acceleration section and the deceleration rate in the deceleration section are both constant values. The speeds of the winding motor and the yarn guide motor are adjusted based on the motion path of the yarn guide.

[0032] In this solution, since the yarn guide is used to control the position of the introduced yarn, and the yarn guide will inevitably change its direction of motion at the turning point during the start-up and reciprocating motion, there will inevitably be a stage of speed reduction and speed increase to uniform motion. This will affect the uniformity of yarn winding on the yarn bobbin at the reciprocating motion switching node. Therefore, setting the acceleration rate of the acceleration stage and the deceleration rate of the deceleration stage to be constant can facilitate the winding motor and the yarn guide motor to adapt to the speed adjustment range when the yarn guide switches between reciprocating motions. This improves the speed adjustment of the electronic yarn guide system based on feedback, solves the problem of uneven yarn winding on the yarn bobbin caused by the speed change of the yarn guide, and improves the production quality of the yarn bobbin.

[0033] Preferably, adjusting the speeds of the winding motor and the yarn guiding motor based on the motion path of the yarn guide includes the following steps: if the yarn guide is in the acceleration phase, the speed of the winding motor is increased based on the acceleration rate of the yarn guide, and the speed of the yarn guiding motor is increased simultaneously.

[0034] If the yarn guide is in the constant speed range, the speeds of the winding motor and the yarn guide motor remain unchanged.

[0035] If the yarn guide is in the deceleration phase, the speed of the winding motor is reduced based on the deceleration rate of the yarn guide, and the speed of the yarn guiding motor is reduced simultaneously.

[0036] In this solution, to address 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 synchronized according to the three different speed change stages of the yarn guide. This ensures that the yarn remains evenly wound throughout the winding process, improving the uniformity of yarn winding in the yarn bobbin and enhancing the production quality of the yarn bobbin.

[0037] The beneficial effects of the present invention are: (1) The present invention obtains the current feed parameters and current product parameters of the yarn bobbin in real time, and adjusts the speed of the winding motor and the yarn guiding motor according to the feedback of the current feed parameters and current product parameters of the yarn bobbin, so as to achieve that the yarn is evenly wound onto the yarn bobbin during the yarn guiding process, thereby improving the production quality of the yarn bobbin;

[0038] (2) The present invention detects the distance between the surface of the yarn bobbin and the center of the yarn bobbin at each moment during a complete round-trip motion cycle of the yarn guide, calculates the average of the distance between the surface of the yarn bobbin and the center of the yarn bobbin at each moment to obtain the diameter of the yarn bobbin, and compares the obtained diameter of the yarn bobbin with the product parameters to produce the yarn bobbin, thereby reducing the probability of uneven thickness during the production of the yarn bobbin and improving the production accuracy of the yarn bobbin.

[0039] (3) The present invention adjusts the speed of the winding motor and the yarn guiding 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 direction is wound evenly, thereby improving the product quality of the yarn package.

[0040] The above description of the invention is merely an overview of the technical solution of the present invention. In order to better understand the technical means of the present invention and to implement it in accordance with the contents of the specification, and in order to make the above and other objects, features and advantages of the present invention more apparent and understandable, specific embodiments of the present invention are described below. Attached Figure Description

[0041] Other features, objects, and advantages of the invention will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings. The drawings are for illustrative purposes only and are not intended to limit the invention. Furthermore, the same reference numerals denote the same parts throughout the drawings.

[0042] Figure 1 This is a flowchart of the control method for the electronic yarn guide device of the present invention;

[0043] Figure 2 This is a flowchart illustrating the process of adjusting the speeds of the winding motor and the yarn guiding motor according to the current feed parameters, as per the present invention. Detailed Implementation

[0044] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only one preferred embodiment of this invention and are only used to explain this invention. They do not limit the scope of protection of this invention. All other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this invention.

[0045] Before discussing the exemplary embodiments in more detail, it should be mentioned that some exemplary embodiments are described as processes or methods depicted as flowcharts. Although the flowcharts describe the operations (or steps) as sequential processes, many of the operations (or steps) can be performed in parallel, concurrently, or simultaneously. Furthermore, the order of the operations can be rearranged. The process can be terminated when its operation is completed, but it may also have additional steps not included in the figures; the process may correspond to a method, function, procedure, subroutine, subroutine, etc.

[0046] Example: Figure 1 As shown, in order to solve the problem of low product quality in yarn package production caused by the lack of real-time feedback adjustment of the winding motor and yarn guiding motor according to the working conditions in the existing technology, this embodiment 1 provides an electronic yarn guiding device control method, including the following steps:

[0047] S1: Obtain the product type of the yarn bobbin, and obtain the feed parameters and product parameters of the yarn bobbin based on the product type.

[0048] In this embodiment, the feed parameters include at least yarn tension, and the product parameters include at least yarn bobbin diameter, yarn bobbin height, and yarn density.

[0049] In this embodiment, to produce a yarn bobbin that meets the requirements, it is necessary to analyze the working status of each piece of the electronic yarn guiding device at each stage of the yarn bobbin production process, as well as the parameters of the yarn bobbin itself, such as the bobbin diameter, bobbin height, and yarn density. The working status of each piece of equipment has a direct impact on the product parameters, so each piece of equipment must operate strictly according to the production requirements. The yarn guiding motor plays an extremely important role in the production process as it obtains raw materials to provide raw materials for subsequent production. 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 yarn bobbin's feed parameters, such as yarn tension, to ensure stable acquisition of raw materials for the yarn bobbin.

[0050] S2: Obtain the initial state values ​​of the winding motor, yarn guide motor, and yarn guide based on the yarn bobbin feed parameters and product parameters.

[0051] In this embodiment, the initial state values ​​of the winding motor, the yarn guiding motor, and the yarn guide are obtained based on the yarn feed parameters and product parameters, including the following steps:

[0052] The preset offset and initial position of the yarn guide are obtained based on the yarn bobbin height in the product parameters; the initial movement speed of the yarn guide, winding motor and yarn guiding motor are obtained based on the yarn density and yarn tension in the product parameters and feed parameters.

[0053] In this embodiment, to ensure the final product meets production requirements, the initial movement speeds of the yarn guide, winding motor, and yarn guiding motor need to be analyzed based on the yarn feed parameters and product parameters. The yarn bobbin height is determined by the preset offset of the yarn guide, therefore the preset offset of the yarn guide is equal to the yarn bobbin height. The yarn density and yarn tension are determined by the movement speeds of the yarn guide, winding motor, and yarn guiding motor. If the yarn tension is too high, the yarn density will be high, and the movement speed of the yarn guide and winding motor will be too fast or too slow. Conversely, if the yarn tension is too low, the yarn density will be high, and the movement speed of the yarn guide and winding motor will be too slow or too fast. Both of these factors will affect the product quality of the yarn bobbin. Therefore, it is necessary to strictly control the movement of the yarn guide, winding motor, and yarn guiding motor to improve the overall winding uniformity of the yarn bobbin and enhance product quality.

[0054] S3: Real-time detection of the current motion status of the yarn guide, the current feed parameters of the yarn bobbin, and the current product parameters; control the movement of the yarn guide based on the current motion status and initial state value of the yarn guide; control the movement of the winding motor and the yarn guide motor based on the current feed parameters of the yarn bobbin and the current product parameters.

[0055] 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, including the following steps:

[0056] 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 make a back-and-forth motion.

[0057] In this embodiment, to control the height of the yarn bobbin, the movement path of the yarn guide is limited, and its initial position is taken as the starting point of the yarn bobbin. Its preset offset is equal to the height of the yarn bobbin. When the movement distance of the yarn guide reaches the preset offset, the movement direction is reversed and it returns to the initial position. This completes one cycle of the yarn guiding process. During the movement of the yarn guide, it can be approximately regarded as a uniform movement throughout the entire process, which can ensure that the yarn is wound evenly and that the yarn will not be wound out of the yarn bobbin range, thus ensuring production safety.

[0058] In this embodiment, the current feed parameters of the yarn bobbin are detected in real time, and the movement of the winding motor and the yarn guiding motor is controlled based on the current feed parameters of the yarn bobbin, including the following steps:

[0059] Real-time detection of the current yarn tension in the current feed parameters of the yarn bobbin, and analysis of the current yarn tension;

[0060] If the current yarn tension is on an upward trend and the tension is higher than the maximum value of the preset tension range, the winding motor is judged to be rotating too fast, and its rotation speed is reduced; or the yarn guide motor is judged to be rotating too slow, and its rotation speed is increased. If the current yarn tension is on a downward trend and the tension is lower than the minimum value of the preset tension range, the winding motor is judged to be rotating too slow, and its rotation speed is increased; or the yarn guide motor is judged to be rotating too fast, and its rotation speed 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 remain unchanged.

[0061] In this embodiment, if the speeds of the winding motor and the yarn guiding motor are not well coordinated during the yarn winding process, the yarn bobbin will drag the yarn during the winding motion, resulting in overly tight winding or the yarn guide speed exceeding the winding speed, resulting in overly loose winding. This severely affects the production quality of the yarn bobbin. Therefore, by real-time detection of the current feed parameters of the yarn bobbin, it can be determined whether the yarn is in an overly tight or overly loose state during winding. This allows for adjustment of the speeds of the winding motor and the yarn guiding motor, ensuring that the speeds of the two motors can coordinate with each other. This results in the yarn being evenly wound on the yarn bobbin in a state that is neither too tight nor too loose, thereby improving the production quality of the yarn bobbin.

[0062] 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 guiding motor is controlled based on the detected current product parameters of the yarn bobbin, including the following steps:

[0063] Within one complete round-trip motion cycle T of the yarn guide, the rotational angular velocity ω of the winding motor is acquired at every moment t. t T = nt; within one complete round-trip motion cycle T of the yarn guide, the yarn speed v of the yarn wound on the yarn bobbin is acquired at every moment t. t ;

[0064] Based on the speed v of the yarn moving on the yarn bobbin at each moment t and the rotational angular velocity ω of the winding motor t Calculate the distance d between the surface of the yarn bobbin and the center of the yarn bobbin at each moment. t d t =v t / ω t The distance D between the surface of the yarn bobbin and the center of the yarn bobbin when the yarn bobbin is not wound with yarn will be calculated at each moment. t The thickness r of the yarn bobbin at each moment is obtained by subtracting the distance D between the surface of the yarn bobbin and the center of the yarn bobbin. t The thickness r of the yarn bobbin at each moment t The average value is used to obtain the thickness r of the yarn bobbin, and the yarn bobbin diameter is calculated based on the yarn bobbin thickness;

[0065] If the current yarn bobbin diameter is equal to the yarn bobbin diameter in the product parameters, control the winding motor, yarn guide motor, and yarn guide to decelerate linearly until the speed is 0.

[0066] In this embodiment, to detect the thickness of the yarn bobbin and ensure that the overall thickness of the yarn bobbin meets the preset parameters rather than only a portion of it, the thickness detection process involves capturing one complete round-trip cycle of the yarn guide. Within this cycle, the radius of the yarn bobbin at each position of the yarn guide is calculated, and the average of these radii is used to obtain the overall thickness of the yarn bobbin. This prevents uneven yarn bobbin thickness or overall yarn bobbin parameters failing to meet production requirements due to partial yarn bobbin thickness reaching the preset parameters and subsequent winding stop, significantly improving the production quality of the yarn bobbin. To ensure that the parameters of the final produced yarn bobbin meet production requirements, the yarn bobbin is monitored in real time during the yarn guiding process. The monitored data is compared in real time with the parameter data in the parameter management module to prevent the produced yarn bobbin from failing to meet the product parameters. Once the yarn bobbin data meets the preset parameters, the electronic yarn guiding device stops working, waiting for the production of the next yarn bobbin. This method improves the accuracy of the product parameters of the produced yarn bobbin, indirectly enhancing the production quality of the product.

[0067] In this embodiment, the movement path of the yarn guide in one round-trip motion cycle includes an acceleration segment, a constant speed segment, and a deceleration segment; the acceleration rate of the yarn guide in the acceleration segment and the deceleration rate in the deceleration segment 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.

[0068] In this embodiment, since the yarn guide is used to control the position of the introduced yarn, and the yarn guide will inevitably change its direction of motion at the turning point during the start-up and reciprocating motion, there will inevitably be a stage of speed reduction and speed increase to uniform motion. This will affect the uniformity of yarn winding on the yarn bobbin at the reciprocating motion switching node. Therefore, setting the acceleration rate of the acceleration stage and the deceleration rate of the deceleration stage to be constant can facilitate the winding motor and the yarn guide motor to adapt to the speed adjustment range when the yarn guide switches between reciprocating motions. This improves the speed adjustment of the electronic yarn guide system based on feedback, solves the problem of uneven yarn winding on the yarn bobbin caused by the speed change of the yarn guide, and improves the production quality of the yarn bobbin.

[0069] In this embodiment, adjusting the speed of the winding motor and the yarn guiding motor based on the motion path of the yarn guide includes the following steps: if the yarn guide is in the acceleration phase, the speed of the winding motor is increased based on the acceleration rate of the yarn guide, and the speed of the yarn guiding motor is increased simultaneously.

[0070] If the yarn guide is in the constant speed range, the speeds of the winding motor and the yarn guide motor remain unchanged.

[0071] If the yarn guide is in the deceleration phase, the speed of the winding motor is reduced based on the deceleration rate of the yarn guide, and the speed of the yarn guiding motor is reduced simultaneously.

[0072] 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. This ensures that the yarn can maintain uniform winding throughout the winding process, thereby improving the uniformity of yarn winding in the yarn bobbin and improving the production quality of the yarn bobbin.

[0073] In this embodiment, due to the influence of friction and other forces during yarn winding, the yarn winding position may not be exactly as guided by the yarn guide. Simultaneously, as the yarn continuously winds, the radius of the yarn bobbin increases, causing changes in the guiding speed and affecting the entire production stage. Therefore, by real-time monitoring and analysis of the current movement state of the yarn guide, the current feed parameters of the yarn bobbin, and the current product parameters, the current production stage can be determined. This analysis reveals the optimal operating state of the winding motor and the yarn guide motor for that stage, including rotational speed and direction. Based on the analysis results, the operating states of the winding motor and the yarn guide motor can be adjusted to approach their optimal operating state. This prevents the production of yarn bobbins from being affected by external environmental factors, thus avoiding defective products and significantly improving the overall quality of yarn bobbin production.

[0074] As can be seen from the above embodiments, it has at least the following substantial effects:

[0075] (1) The present invention obtains the current feed parameters and current product parameters of the yarn bobbin in real time, and adjusts the speed of the winding motor and the yarn guiding motor according to the feedback of the current feed parameters and current product parameters of the yarn bobbin, so as to achieve that the yarn is evenly wound onto the yarn bobbin during the yarn guiding process, thereby improving the production quality of the yarn bobbin;

[0076] (2) The present invention detects the distance between the surface of the yarn bobbin and the center of the yarn bobbin at each moment during a complete round-trip motion cycle of the yarn guide, calculates the average of the distance between the surface of the yarn bobbin and the center of the yarn bobbin at each moment to obtain the diameter of the yarn bobbin, and compares the obtained diameter of the yarn bobbin with the product parameters to produce the yarn bobbin, thereby reducing the probability of uneven thickness during the production of the yarn bobbin and improving the production accuracy of the yarn bobbin.

[0077] (3) The present invention adjusts the speed of the winding motor and the yarn guiding 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 direction is wound evenly, thereby improving the product quality of the yarn package.

[0078] The specific embodiments described above are preferred embodiments of the electronic yarn guiding device control method of the present invention, and are not intended to limit the specific scope of the present invention. The scope of the present invention includes but is not limited to these specific embodiments. 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 control method for an electronic yarn guiding device, characterized in that: Includes the following steps: S1. Obtain the product type of the yarn bobbin, and obtain the feed parameters and product parameters of the yarn bobbin based on the product type; the feed parameters include at least the yarn tension, and the product parameters include at least the yarn bobbin diameter, yarn bobbin height, and yarn density. S2. Obtain the initial state values ​​of the winding motor, the yarn guide motor, and the yarn guide based on the yarn bobbin feed parameters and product parameters. Specifically, this includes: obtaining the preset offset and initial position of the yarn guide based on the yarn bobbin height in the product parameters; and obtaining the initial movement speed of the yarn guide, the winding motor, and the yarn guide motor based on the yarn density and yarn tension in the product parameters and feed parameters. S3. Real-time detection of the current motion state of the yarn guide, the current feed parameters of the yarn bobbin, and the current product parameters; control the movement of the yarn guide based on the current motion state and initial state value of the yarn guide. Specifically, this includes: real-time detection of the current yarn tension in the current feed parameters of the yarn bobbin and analysis of the current yarn tension. If the current yarn tension is on an upward trend and the tension is higher than the maximum value of the preset tension range, it is determined that the winding motor rotation speed is too fast, and the winding motor rotation speed is reduced; or it is determined that the yarn guide motor rotation speed is too slow and the yarn guide motor rotation speed is increased. If the current yarn tension is decreasing and the tension is less than the minimum value of the preset tension range, it is determined that the winding motor rotation speed is too slow, and the rotation speed of the winding motor is increased; or it is determined that the yarn guide motor rotation speed is too fast and the rotation speed of the yarn guide motor is decreased. If the current yarn tension is within the preset tension range, the rotation speed of the yarn guiding motor and the winding motor will remain unchanged. The movement of the winding motor and the yarn guide motor is controlled based on the current feed parameters of the yarn bobbin and the current product parameters. Specifically, this includes: acquiring the rotational angular velocity ω of the winding motor at every moment t within one complete round-trip motion cycle T of the yarn guide. t T=nt; Within one complete round-trip motion cycle T of the yarn guide, the yarn speed v of the yarn wound on the yarn bobbin is acquired at every time point t. t ; Based on the speed v of the yarn moving on the yarn bobbin at each moment t and the rotational angular velocity ω of the winding motor t Calculate the distance d between the surface of the yarn bobbin and the center of the yarn bobbin at each moment. t d t =v t / ω t The distance D between the surface of the yarn bobbin and the center of the yarn bobbin when the yarn bobbin is not wound with yarn will be calculated at each moment. t The thickness r of the yarn bobbin at each moment is obtained by subtracting the distance D between the surface of the yarn bobbin and the center of the yarn bobbin. t The thickness r of the yarn bobbin at each moment t The average value is used to obtain the thickness r of the yarn bobbin, and the yarn bobbin diameter is calculated based on the yarn bobbin thickness; If the current yarn bobbin diameter is equal to the yarn bobbin diameter in the product parameters, control the winding motor, yarn guide motor, and yarn guide to decelerate linearly until the speed is 0.

2. The electronic yarn guiding device control method according to claim 1, characterized in that: In S3, the current motion state of the yarn guide is detected in real time, and the movement of the yarn guide is controlled based on the current motion state 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 make a back-and-forth motion.

3. A control method for an electronic yarn guiding device according to any one of claims 1-2, characterized in that: The movement path of the yarn guide in one round-trip motion cycle includes an acceleration segment, a constant speed segment, and a deceleration segment. The acceleration rate of the yarn guide in the acceleration section and the deceleration rate in the deceleration section are both constant values. The speeds of the winding motor and the yarn guide motor are adjusted based on the motion path of the yarn guide.

4. The electronic yarn guiding device control method according to claim 3, characterized in that: Adjusting the speeds of the winding motor and the guiding motor based on the motion path of the yarn guide includes the following steps: If the yarn guide is in the acceleration phase, the speed of the winding motor is increased based on the acceleration rate of the yarn guide, and the speed of the yarn guiding motor is increased simultaneously. If the yarn guide is in the constant speed range, the speeds of the winding motor and the yarn guide motor remain unchanged. If the yarn guide is in the deceleration phase, the speed of the winding motor is reduced based on the deceleration rate of the yarn guide, and the speed of the yarn guiding motor is reduced simultaneously.

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