CN115626525B - A winding machine winding device full bobbin control system and method - Google Patents

Abstract

The invention provides a full-drum control system and method of a winding device of a silk winder, wherein the full-drum control system comprises a control module, a tension sensor, a winding yarn drum and a raw yarn drum, both ends of the winding yarn drum are provided with flanges, yarn is wound on the winding yarn drum from the raw yarn drum through a yarn guide nozzle, a yarn path is formed between the winding yarn drum and the raw yarn drum, the tension sensor is arranged on the yarn path formed by the yarn, and the tension sensor is connected with the control module. The full-drum control method specifically comprises the steps of determining the upper edge position and the lower edge position of a winding yarn drum, collecting yarn tension in real time through a tension sensor in the yarn winding process, shifting a yarn guiding nozzle to the upper edge position or the lower edge position when the yarn guiding number of times of the yarn guiding nozzle reaches preset number of times, collecting yarn tension when the yarn guiding nozzle is shifted, and judging the full drum according to yarn tension change conditions. The full-drum judging device can judge the full drum according to the yarn tension after the yarn guide nozzle is deviated, and the full drum detecting result of the winding yarn drum is more accurate.

Description

A winding machine winding device full bobbin control system and method

Technical field

The present invention relates to the technical field of yarn manufacturing, and in particular, to a winding machine winding device full bobbin control system and method.

Background technique

The winder is a machine that can unwind the yarn or filament from the original yarn cone and wind it onto the target bobbin to form a new yarn cone. While winding, it can also remove the yarn or filament. Impurities or defects on silk are the most common textile equipment in the yarn manufacturing process. Due to the specifications of the winding bobbin, it needs to be replaced in time when the winding bobbin is full, so as to avoid affecting the yarn winding efficiency of the winder. However, the existing method of determining the fullness of the winding bobbin is based on the winding length of the yarn or the number of yarn pull-ups. It is impossible to detect the full bobbin based on the specific shaping conditions of the yarn winding during the yarn pull-up process. The accuracy of the test results is not high. Moreover, during the yarn drawing process, due to the operating error of the machine or the control path error of the yarn guide nozzle, it is likely that the bobbin is not full when the winding length or the number of yarn drawings is reached. If the winding length or yarn drawing is still used, The method of judging the full package based on the number of times will make the quality of the obtained yarn winding results unable to meet the production requirements.

Contents of the invention

The purpose of the present invention is to overcome the shortcomings of the prior art and provide a winding machine winding device full bobbin control system and method that can offset the yarn guide nozzle after the number of yarn introductions reaches the preset number of times, and according to the The yarn tension change after the yarn guide nozzle is offset is used to determine the full package, which can solve the problem in the existing winding package full package determination method that the full package cannot be determined based on the specific shaping conditions of the yarn winding during the yarn feeding process. Detection, the quality of the obtained yarn winding results cannot meet the production requirements, making the detection results of the full winding bobbin more accurate, further ensuring the quality of the obtained yarn winding results.

The purpose of the present invention is to be achieved through the following technical solutions:

A full bobbin control system for a winding device of a winding machine. The winding device includes a spindle motor, a spindle rod driven to rotate by the spindle motor, a yarn lead-in motor and a yarn guide mouth driven by the yarn lead-in motor for reciprocating motion. , the winding machine winding device winds the yarn through the spindle bar and the yarn guide nozzle, the winding machine winding device full bobbin control system includes a control module, a tension sensor, and a roller with ribs at both ends. The winding yarn bobbin and the original yarn bobbin, the yarn is wound from the original yarn bobbin to the winding yarn bobbin through the yarn guide nozzle, and a yarn path is formed between the winding yarn bobbin and the original yarn bobbin, and the tension sensor is arranged on On the yarn path composed of yarn, the tension sensor is connected to the control module. The tension sensor is used to collect the yarn tension in real time and transmit it to the control module. The control module is used to control the offset of the yarn guide nozzle and adjust the yarn tension according to the offset. The final yarn tension changes are used to judge the full package.

A method for controlling the full bobbin of a winding device of a winding machine, including the following steps:

Step 1: Determine the upper edge position and lower edge position of the winding yarn package, and the yarn guide starts winding the yarn from the preset winding position;

Step 2: During the yarn winding process, the yarn tension is collected in real time through the tension sensor, and the number of yarn introductions of the yarn guide nozzle is recorded in real time. When the number of yarn introductions of the yarn guide nozzle reaches the preset number, the yarn guide nozzle is moved upward to the edge. The position or the lower edge position is offset;

Step 3: Collect the yarn tension when the yarn guide nozzle is offset, and judge the full package based on the changes in yarn tension.

Furthermore, when judging the full package based on the changes in yarn tension in step 3, first determine the number of yarn pull-ins when making the full package judgment, determine the yarn tension fluctuation range based on the number of yarn pull-ins, and compare the yarn tension with the yarn tension. Compare the fluctuation range. If the yarn tension is within the yarn tension fluctuation range, the yarn in the yarn guide nozzle does not rub against the sidewall of the winding yarn bobbin, and the winding yarn bobbin is full; if the yarn tension exceeds the yarn tension range, If the thread tension fluctuates within the range, the yarn in the yarn guide nozzle can still rub against the ribs of the winding bobbin, and the winding bobbin is not yet full.

Further, the specific process of determining the yarn tension fluctuation range based on the number of yarn pull-ups is: determine the influencing factors of the yarn tension, calculate the correlation coefficient between each influencing factor and the yarn tension, and set each factor according to the correlation coefficient. The weight of each influencing factor is collected in real time during each yarn drawing process, and each influencing factor is assigned a score based on the collected data corresponding to each influencing factor. According to the weight of each influencing factor And the assigned score determines the comprehensive score of the yarn tension in each yarn drawing process, collects the yarn tension in the first yarn drawing process, and combines the maximum yarn tension and yarn tension in the first yarn drawing process The minimum value is used as the initial yarn tension fluctuation range, and the comprehensive score of the yarn tension in the first yarn pulling process is retrieved, and is based on the ratio with the comprehensive score of the yarn tension in the first yarn pulling process and the initial yarn tension The fluctuation range determines the yarn tension fluctuation range corresponding to each yarn pull-up.

Further, after determining the upper edge position and lower edge position of the winding yarn drum, the rib width of the winding yarn drum is also measured to determine the yarn thickness when the winding yarn drum is full, and based on the yarn type And the preset operating parameters of the winding device of the winder are used to calculate the number of yarn pull-outs when the winding bobbin is full based on the yarn thickness, and the calculated number of yarn pull-ups is used as the preset number of times described in step two.

Further, after the full package judgment is completed in step 3, if it is determined that the winding yarn package is full, the spindle motor will be turned off, the yarn introduction motor will be turned off after reaching the reset position, the yarn guide nozzle will stop yarn introduction, and the control module will issue a full package prompt. If it is judged that the winding yarn bobbin is not full, the yarn guide nozzle will continue to feed the yarn, and will continue to offset the yarn guide nozzle after the next yarn feed is completed, and the full bobbin will be judged based on the changes in yarn tension.

Furthermore, when it is judged that the winding yarn bobbin is not full, the offset distance of the yarn guide nozzle is also called, and the offset distance of the yarn guide nozzle is added to the yarn guide motor stroke, and based on the added yarn guide nozzle The offset distance of the yarn lead-in motor stroke re-plans the movement trajectory of the yarn guide nozzle in the next yarn lead-in process.

Further, the specific process of adding the offset distance of the yarn guide nozzle to the yarn guide motor stroke is: adjusting the offset direction of the yarn guide nozzle. When the yarn guide nozzle is offset to the upper edge position, the yarn guide motor The motor stroke increases the offset distance of the yarn guide nozzle. When the yarn guide nozzle shifts toward the lower edge, the yarn guide motor stroke decreases the offset distance of the yarn guide nozzle.

The beneficial effects of the present invention are:

After the number of yarn introductions reaches the preset number, the yarn guide nozzle is offset, and the full bobbin detection is realized through the change of yarn tension after the yarn guide nozzle is offset. The deflection of the yarn guide can reflect the current degree of yarn winding. Since there are ribs at both ends of the winding bobbin, after the yarn guide is offset, the change in yarn tension can determine the relationship between the yarn and the ribs. The relative position between the winding bobbin and the bobbin can be realized to achieve full bobbin detection without stopping before the bobbin is full, ensuring the accuracy of the winding bobbin full bobbin detection results and further ensuring the quality of the yarn winding results.

Description of the drawings

Figure 1 is a schematic structural diagram of the present invention;

Figure 2 is a schematic flow chart of the present invention.

Among them: 1. Control module, 2. Tension sensor, 3. Winding yarn cone, 4. Original yarn cone, 5. Yarn, 6. Yarn guide nozzle.

Detailed ways

The present invention will be further described below in conjunction with the accompanying drawings and examples.

Example:

A full bobbin control system for a winding device of a winding machine. The winding device includes a spindle motor, a spindle rod driven to rotate by the spindle motor, a yarn lead-in motor and a yarn guide mouth driven by the yarn lead-in motor for reciprocating motion. , the winder winding device winds the yarn through the spindle bar and the yarn guide nozzle. The full bobbin control system of the winder winding device is shown in Figure 1, including a control module 1, a tension sensor 2, The winding yarn bobbin 3 and the original yarn bobbin 4 are equipped with ribs at both ends. The yarn 5 is wound from the original yarn bobbin to the winding yarn bobbin through the yarn guide 6, and is wound on the winding yarn bobbin and the original yarn bobbin. constitute a yarn path, and the tension sensor is arranged on the yarn path formed by the yarn. The tension sensor is connected to the control module. The tension sensor is used to collect the yarn tension in real time and transmit it to the control module. The control module uses It is used to control the deflection of the yarn guide nozzle and judge the full package based on the changes in yarn tension after the deflection.

The winder winding device may be a common device on the market that winds yarn through a spindle bar and a yarn guide nozzle. The spindle motor and the yarn introduction motor are both connected to the control module. The control module can control the spindle bar and the yarn guide nozzle by controlling the speed of the spindle motor and the yarn introduction motor. When adjusting the yarn guide nozzle for deviation correction, the adjustment distance of the yarn guide nozzle is specifically adjusted by controlling the number of forward and reverse rotations of the yarn guide motor.

The control module may be a microcontroller, MCU or other control device. Before yarn winding, the operating parameters of the winding device of the winder are determined according to the specific yarn winding requirements and input into the control module. The control module controls the spindle motor and the yarn introduction motor according to the operating parameters.

There are baffles at both ends of the winding bobbin. When the yarn touches the baffle, the yarn will rub against the baffle, and the yarn tension collected by the tension sensor will change accordingly.

A method for controlling the full bobbin of a winding machine winding device, as shown in Figure 2, includes the following steps:

Step 1: Determine the upper edge position and lower edge position of the winding yarn package, and the yarn guide starts winding the yarn from the preset winding position;

Step 2: During the yarn winding process, the yarn tension is collected in real time through the tension sensor, and the number of yarn introductions of the yarn guide nozzle is recorded in real time. When the number of yarn introductions of the yarn guide nozzle reaches the preset number, the yarn guide nozzle is moved upward to the edge. The position or the lower edge position is offset;

Step 3: Collect the yarn tension when the yarn guide nozzle is offset, and make a full bobbin judgment based on the change in yarn tension. If it is judged that the winding yarn bobbin is full, the yarn guide nozzle stops yarn introduction, and the control module issues a full bobbin prompt. , if it is judged that the winding yarn bobbin is not full, the yarn guide nozzle will continue to feed the yarn, and will continue to offset the yarn guide nozzle after the next yarn feed is completed, and the full bobbin will be judged based on the changes in yarn tension.

In step 3, when judging the full package based on the changes in yarn tension, first determine the number of yarn pull-ins when judging the full package, determine the yarn tension fluctuation range based on the number of yarn pull-ins, and compare the yarn tension with the yarn tension fluctuation range. By comparison, if the yarn tension is within the yarn tension fluctuation range, the yarn in the yarn guide nozzle does not rub against the ribs of the winding yarn bobbin, and the winding yarn bobbin is already full; if the yarn tension exceeds the yarn tension fluctuation range range, the yarn in the yarn guide nozzle can still rub against the ribs of the winding bobbin, and the winding bobbin is not yet full.

When the bobbin is full, the yarn guide nozzle will not rub against the rib when it moves to the upper edge or lower edge position. However, when the bobbin is not full, when the yarn guide nozzle moves to the upper edge or lower edge position, it will not rub against the rib. There will be friction with the ribs. After friction occurs, the yarn tension will fluctuate greatly. Therefore, based on the change of yarn tension, it can be judged whether the yarn rubs against the rib, so as to realize the full bobbin judgment.

The specific process of determining the yarn tension fluctuation range based on the number of yarn pull-ups is: determine the influencing factors of the yarn tension, calculate the correlation coefficient between each influencing factor and the yarn tension, and set each influencing factor according to the correlation coefficient The weight of each influencing factor is collected in real time during each yarn drawing process, and each influencing factor is assigned a score based on the collected data corresponding to each influencing factor. According to the weight and assigned score of each influencing factor The score determines the comprehensive score of the yarn tension in each yarn drawing process, collects the yarn tension in the first yarn drawing process, and takes the maximum value of the yarn tension and the minimum value of the yarn tension in the first yarn drawing process as The initial yarn tension fluctuation range is to retrieve the comprehensive score of the yarn tension in the first yarn pull-up process, and determine it based on the ratio to the comprehensive score of the yarn tension in the first yarn pull-up process and the initial yarn tension fluctuation range. The yarn tension fluctuation range corresponding to each yarn pull-up.

As the number of yarn pull-ups increases, the composition of the yarn on the surface of the winding bobbin is also different, and the tension fluctuation amplitude of the yarn will also change due to changes in external influencing factors. Therefore, the tension fluctuation range during the first yarn drawing process is used as the initial tension fluctuation range, and the tension fluctuation range is adjusted based on changes in influencing factors.

Through the correlation coefficient, it can be determined whether each influencing factor has a positive or negative correlation with the yarn tension. When assigning points to each influencing factor, the numerical value of the influencing factor in the first yarn drawing process is used as the benchmark, and based on the influence The factor values are compared with the changes in the influencing factor values during the first yarn drawing process and the corresponding correlation coefficients to assign points. Since the correlation coefficient can reflect the degree of correlation of influencing factors with the change of yarn tension, the value based on the correlation coefficient can realize the weight division of the influencing factors. The closer the absolute value of the correlation coefficient is to 1, the greater the weight proportion of the influencing factors.

The influencing factors include spindle rotation speed fluctuations, external environment, machine operating vibration, etc.

After determining the upper edge position and lower edge position of the winding yarn drum, the rib width of the winding yarn drum is also measured to determine the yarn thickness when the winding yarn drum is full, and based on the yarn type and preset The operating parameters of the winding device of the winder are based on the yarn thickness to calculate the number of yarn pull-ins when the winding bobbin is full, and the calculated number of yarn pull-ins is used as the preset number of times described in step two.

The position of the upper edge and the lower edge of the winding bobbin can be detected by positioning sensors. The thickness of the yarn when the winding bobbin is full should be equal to the rib width of the winding bobbin. The operating parameters of the winding device of the winding machine include the moving speed of the yarn guide nozzle, yarn winding density and other parameters. The operating parameters of the winding device of the winding machine and the type of yarn can determine the yarn when the winding bobbin is full. The number of yarn pull-ins required for the thread thickness.

When it is judged that the winding bobbin is not full, the offset distance of the yarn guide nozzle is also called, and the offset distance of the yarn guide nozzle is added to the yarn guide motor stroke, and the offset distance of the yarn guide nozzle is added based on the offset distance of the yarn guide nozzle. The yarn-feeding motor stroke re-plans the moving trajectory of the yarn guide nozzle in the next yarn-feeding process.

The specific process of adding the offset distance of the yarn guide nozzle to the yarn guide motor stroke is: adjusting the offset direction of the yarn guide nozzle. When the yarn guide nozzle is offset toward the upper edge, the yarn guide motor stroke increases. The offset distance of the yarn guide nozzle. When the yarn guide nozzle is offset toward the lower edge, the yarn guide motor stroke reduces the offset distance of the yarn guide nozzle.

If the yarn guide nozzle has already performed an offset action during the last yarn lead-in process, the offset distance of the yarn guide nozzle during the last yarn lead-in process will be recorded, and the offset distance of the yarn guide nozzle will be added to the yarn lead-in motor stroke. The yarn guide motor determines the movement trajectory of the yarn guide nozzle during the yarn guide process based on the yarn guide motor stroke after the offset distance of the yarn guide nozzle is increased, and continues to move in the current movement direction based on the end position of the movement trajectory during the yarn guide process. Implement offset.

Since the yarn guide motor is deflected, the stroke of the yarn guide motor will change accordingly, and the reciprocating motion of the yarn guide motor is realized by the forward and reverse rotation of the yarn guide motor, and the forward and reverse rotation of the yarn guide motor also needs to be passed through its If the offset distance of the yarn guide is ignored, the start and end positions of the subsequent reciprocating movement of the yarn guide may not be consistent with the previous ones. The yarn guide will reverse direction before completing one yarn introduction. direction movement, causing problems with yarn formation. Therefore, after adjusting the offset distance of the yarn guide nozzle, the offset distance of the yarn guide nozzle is also added to the stroke of the yarn guide motor, and the subsequent yarn guide process can proceed normally.

The offset distance of the yarn guide nozzle is specifically determined by the distance between the rib position and the yarn starting position. In this embodiment, the offset distance of the yarn guide nozzle is set to 0.8 mm.

The above-described embodiment is only a preferred solution of the present invention and does not limit the present invention in any form. There are other variations and modifications without exceeding the technical solution described in the claims.

Claims (4)

1. The full-drum control method of the winding device of the silk winder is characterized by comprising the following steps of:

step one, determining the upper edge position and the lower edge position of a winding yarn cylinder, and starting yarn winding from a preset winding starting position by a yarn guide nozzle;

step two, collecting yarn tension in real time through a tension sensor in the yarn winding process, recording the yarn guiding times of a yarn guiding nozzle in real time, and shifting the yarn guiding nozzle to an upper edge position or a lower edge position when the yarn guiding times of the yarn guiding nozzle reach preset times;

step three, collecting yarn tension when the yarn guide nozzle deflects, and judging full canister according to yarn tension change conditions;

when the full drum judgment is carried out according to the yarn tension change condition, firstly determining the yarn guiding times when the full drum judgment is carried out, determining the yarn tension fluctuation range according to the yarn guiding times, comparing the yarn tension with the yarn tension fluctuation range, and if the yarn tension is in the yarn tension fluctuation range, the yarn in the yarn guiding nozzle is not rubbed with the flange of the winding drum, and the winding drum is full; if the yarn tension exceeds the yarn tension fluctuation range, the yarn in the yarn guide nozzle can still rub against the flange of the winding yarn drum, and the winding yarn drum is not full;

the specific process for determining the yarn tension fluctuation range according to the yarn guiding times comprises the following steps: determining influence factors of yarn tension, calculating a correlation coefficient between each influence factor and the yarn tension, setting weight of each influence factor according to the correlation coefficient, collecting corresponding data of each influence factor in real time in each yarn drawing process, assigning a score to each influence factor based on the collected corresponding data of each influence factor, determining a comprehensive score of the yarn tension in each yarn drawing process according to the weight and the assigned score of each influence factor, collecting the yarn tension in the first yarn drawing process, taking the maximum value and the minimum value of the yarn tension in the first yarn drawing process as an initial yarn tension fluctuation range, and collecting the comprehensive score of the yarn tension in the first yarn drawing process, and determining a yarn tension fluctuation range corresponding to each yarn drawing process based on a ratio between the comprehensive score of the yarn tension in the first yarn drawing process and the initial yarn tension fluctuation range;

after the upper edge position and the lower edge position of the winding yarn drum are determined, the flange width of the winding yarn drum is measured, the yarn thickness when the winding yarn drum is full is determined, the yarn guiding times when the winding yarn drum is full are calculated according to the yarn thickness based on the yarn type and the preset operation parameters of the winding device of the winder, and the calculated yarn guiding times are used as the preset times in the second step.

2. The method for controlling full drum of a winding device of a winder according to claim 1, wherein after the full drum judgment is completed in the step three, if the winding drum is judged to be full, the spindle motor is turned off, the yarn guiding motor is turned off after reaching the reset position, the yarn guiding nozzle stops guiding yarn, the control module sends out a full drum prompt, if the winding drum is judged to be not full, the yarn guiding nozzle continues guiding yarn, and after the next yarn guiding is completed, the yarn guiding nozzle continues to conduct offset processing, and the full drum judgment is performed according to the yarn tension change condition.

3. The method according to claim 2, wherein when it is determined that the winding bobbin is not full, the offset distance of the yarn guide nozzle is also adjusted, the offset distance of the yarn guide nozzle is added to the yarn guiding motor stroke, and the moving track of the yarn guide nozzle in the next yarn guiding process is re-planned based on the yarn guiding motor stroke to which the offset distance of the yarn guide nozzle is added.

4. A method for controlling a full-drum winder winding arrangement according to claim 3, wherein the specific process of adding the offset distance of the yarn guide nozzle to the yarn guiding motor stroke is as follows: and adjusting the offset direction of the yarn guide nozzle, wherein when the yarn guide nozzle is offset towards the upper edge position, the offset distance of the yarn guide nozzle is increased by the yarn guide motor stroke, and when the yarn guide nozzle is offset towards the lower edge position, the offset distance of the yarn guide nozzle is reduced by the yarn guide motor stroke.