CN115626525B - Full-drum control system and method for winding device of silk winder - Google Patents
Full-drum control system and method for winding device of silk winder Download PDFInfo
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- CN115626525B CN115626525B CN202211203624.4A CN202211203624A CN115626525B CN 115626525 B CN115626525 B CN 115626525B CN 202211203624 A CN202211203624 A CN 202211203624A CN 115626525 B CN115626525 B CN 115626525B
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- 238000004804 winding Methods 0.000 title claims abstract description 115
- 238000000034 method Methods 0.000 title claims abstract description 60
- 238000001514 detection method Methods 0.000 description 7
- 230000001276 controlling effect Effects 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 230000001105 regulatory effect Effects 0.000 description 3
- 230000007547 defect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000004753 textile Substances 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H54/00—Winding, coiling, or depositing filamentary material
- B65H54/70—Other constructional features of yarn-winding machines
- B65H54/702—Arrangements for confining or removing dust
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H57/00—Guides for filamentary materials; Supports therefor
- B65H57/06—Annular guiding surfaces; Eyes, e.g. pigtails
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H63/00—Warning or safety devices, e.g. automatic fault detectors, stop-motions ; Quality control of the package
- B65H63/006—Warning or safety devices, e.g. automatic fault detectors, stop-motions ; Quality control of the package quality control of the package
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H63/00—Warning or safety devices, e.g. automatic fault detectors, stop-motions ; Quality control of the package
- B65H63/04—Warning or safety devices, e.g. automatic fault detectors, stop-motions ; Quality control of the package responsive to excessive tension or irregular operation of apparatus
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H2701/00—Handled material; Storage means
- B65H2701/30—Handled filamentary material
- B65H2701/31—Textiles threads or artificial strands of filaments
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
Technical Field
The invention relates to the technical field of yarn manufacturing, in particular to a full-drum control system and method for a winding device of a silk winder.
Background
A winder is a machine that unwinds yarn or filament from a raw yarn bobbin and winds it onto a target bobbin to form a new yarn bobbin, while winding, also removes impurities or defects from the yarn or filament, and is one of the most common textile devices in yarn manufacturing processes. Due to the limitation of the specification of the winding yarn drum, the winding yarn drum needs to be replaced in time when the winding yarn drum is full, so that the yarn winding efficiency of the winder is not affected. However, the existing method for judging the full bobbin of the winding bobbin is realized according to the winding length of the yarn or the number of times of yarn guiding, and the full bobbin detection according to the specific forming condition of yarn winding in the yarn guiding process cannot be realized, and the accuracy of the full bobbin detection result is not high. In addition, in the yarn guiding process, the running error of a machine or the control path error of a yarn guiding nozzle is likely to cause the situation that the yarn is not fully wound when the winding length or the yarn guiding times are reached, and if the method of fully winding judgment is still adopted according to the winding length or the yarn guiding times, the quality of the obtained yarn winding result can not meet the production requirement.
Disclosure of Invention
The invention aims to overcome the defects in the prior art, and provides a full-drum control system and method for a winding device of a winder, which can carry out offset treatment on a yarn guide nozzle after the yarn guiding times reach preset times, and carry out full-drum judgment according to tension change of yarn after the yarn guide nozzle is offset, so that the problem that full-drum detection cannot be carried out according to specific forming conditions of yarn winding in the yarn guiding process in the existing winding yarn drum full-drum judgment method, and the quality of the obtained yarn winding result cannot meet the production requirement can be solved, so that the winding yarn drum full-drum detection result is more accurate, and the quality of the obtained yarn winding result is further ensured.
The invention aims at realizing the following technical scheme:
the full-drum control system of the winding device of the winder comprises a spindle motor, a spindle rod driven by the spindle motor to rotate, a yarn guiding motor and a yarn guiding nozzle driven by the yarn guiding motor to do reciprocating motion, the winding device of the winder winds yarns through the spindle rod and the yarn guiding nozzle, the full-drum control system of the winding device of the winder comprises a control module, a tension sensor, a winding drum and a raw drum, both ends of the winding drum are provided with flanges, the yarns are wound on the winding drum from the raw drum through the yarn guiding nozzle, a yarn path is formed between the winding drum and the raw drum, the tension sensor is arranged on a yarn path formed by the yarns, the tension sensor is connected with the control module, and the tension sensor is used for collecting yarn tension in real time and transmitting the yarn guiding nozzle to the control module, and the control module is used for controlling deviation of the yarn guiding nozzle and judging full drum according to the deviation condition of yarn tension.
A full-drum control method of a winding device of a silk winder comprises the following steps:
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;
and thirdly, collecting yarn tension when the yarn guide nozzle deflects, and judging full canister according to yarn tension change conditions.
Further, 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 with the flange of the winding yarn drum, and the winding yarn drum is not full.
Further, the specific process of determining the yarn tension fluctuation range according to the yarn guiding times is as follows: 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 guiding 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 guiding process according to the weight and the assigned score of each influence factor, collecting the yarn tension in the first yarn guiding process, taking the maximum value and the minimum value of the yarn tension in the first yarn guiding process as an initial yarn tension fluctuation range, and collecting the comprehensive score of the yarn tension in the first yarn guiding process, and determining the yarn tension fluctuation range corresponding to each yarn guiding process based on the ratio between the comprehensive score of the yarn tension in the first yarn guiding process and the initial yarn tension fluctuation range.
Further, 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.
Further, after the full drum judgment is completed in the step three, if the winding drum is judged to be full, the spindle motor is closed, the yarn guiding motor is closed after reaching the reset position, the yarn guiding nozzle stops guiding yarns, 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 yarns, the yarn guiding nozzle continues to carry out offset treatment after the next yarn guiding is completed, and the full drum judgment is carried out according to the yarn tension change condition.
Further, when the winding yarn drum is judged to be not full, the offset distance of the yarn guide nozzle is also called, 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 planned again based on the yarn guiding motor stroke added with the offset distance of the yarn guide nozzle.
Further, 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.
The beneficial effects of the invention are as follows:
after the yarn guiding times reach the preset times, the yarn guiding nozzle is shifted, and full-drum detection is realized through the change of yarn tension after the yarn guiding nozzle shifts. The deviation of the yarn guide mouth can reflect the current yarn winding degree, and as the flanges are arranged at the two ends of the winding yarn barrel, the relative position between the yarn and the flanges can be judged by the change of the yarn tension after the deviation of the yarn guide mouth, so that the full barrel detection is realized, the condition that the full barrel is not full and stops is avoided, the accuracy of the full barrel detection result of the winding yarn barrel is ensured, and the quality of the yarn winding result is further ensured.
Drawings
FIG. 1 is a schematic view of a construction of the present invention;
fig. 2 is a schematic flow chart of the present invention.
Wherein: 1. the yarn guide device comprises a control module, a tension sensor, a winding yarn drum, a raw yarn drum, a yarn guide nozzle and a yarn guide nozzle.
Detailed Description
The invention is further described below with reference to the drawings and examples.
Examples:
the full-drum control system of the winder winding device comprises a spindle motor, a spindle rod driven by the spindle motor to rotate, a yarn guiding motor and a yarn guiding nozzle driven by the yarn guiding motor to do reciprocating motion, the winder winding device winds yarns through the spindle rod and the yarn guiding nozzle, the full-drum control system of the winder winding device is shown in fig. 1 and comprises a control module 1, a tension sensor 2, a winding yarn drum 3 and a raw yarn drum 4, both ends of the winding yarn drum are provided with flanges, yarns 5 are wound on the winding yarn drum from the raw yarn drum through the yarn guiding nozzle 6, 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 yarns, the tension sensor is connected with the control module, and is used for collecting yarn tension in real time and transmitting the yarn tension to the control module, and the control module is used for controlling deviation of the yarn guiding nozzle and judging the full drum according to the changed condition of the yarn tension after deviation.
The winder winding device can be a device for winding yarns through a spindle rod and a yarn guide nozzle, which is common in the market. The spindle motor and the yarn guiding motor are connected with the control module, and the control module can control the spindle rod and the yarn guiding nozzle by controlling the rotating speeds of the spindle motor and the yarn guiding motor. When the yarn guide nozzle is regulated to correct the deviation, the regulating distance of the yarn guide nozzle is regulated by controlling the number of turns of the yarn guiding motor, which are positively and negatively rotated.
The control module can be a control device such as a singlechip, an MCU and the like. Before yarn winding, the operation parameters of the winding device of the winder are determined according to specific yarn winding requirements, the operation parameters are input into a control module, and the control module controls the spindle motor and the yarn guiding motor according to the operation parameters.
Both ends of the winding yarn cylinder are provided with baffle plates, when yarn touches the baffle plates, the yarn can rub against the baffle plates, and the tension of the yarn collected by the tension sensor can change.
A full-drum control method of a winding device of a silk winder, as shown in fig. 2, comprises the following steps:
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;
and thirdly, collecting yarn tension when the yarn guide nozzle deflects, judging full drum according to yarn tension change conditions, stopping yarn guiding by the yarn guide nozzle if the winding yarn drum is judged to be full, sending out full drum prompt by the control module, continuing yarn guiding by the yarn guide nozzle if the winding yarn drum is judged to be not full, continuing to deflect the yarn guide nozzle after the next yarn guiding is finished, and judging full drum 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 with the flange of the winding yarn drum, and the winding yarn drum is not full.
After the full drum is reached, the yarn guide nozzle can not rub with the flange when shifting to the upper edge or the lower edge position, and when the full drum is not reached, the yarn guide nozzle can rub with the flange when shifting to the upper edge or the lower edge position. After friction occurs, the yarn tension can fluctuate greatly, so that whether the yarn rubs with the flange or not is judged according to the change condition of the yarn tension, and full cylinder judgment is achieved.
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 guiding 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 guiding process according to the weight and the assigned score of each influence factor, collecting the yarn tension in the first yarn guiding process, taking the maximum value and the minimum value of the yarn tension in the first yarn guiding process as an initial yarn tension fluctuation range, and collecting the comprehensive score of the yarn tension in the first yarn guiding process, and determining the yarn tension fluctuation range corresponding to each yarn guiding process based on the ratio between the comprehensive score of the yarn tension in the first yarn guiding process and the initial yarn tension fluctuation range.
The yarn composition on the surface of the winding drum varies with the number of times of yarn drawing, and the tension fluctuation range of the yarn varies due to the variation of external factors. The tension fluctuation range in the first yarn drawing process is used as an initial tension fluctuation range, and the tension fluctuation range is adjusted based on the change of the influencing factors.
And when each influence factor is assigned, the value of the influence factor in the first yarn drawing process is taken as a reference, and assignment is carried out based on the change of the value of the influence factor compared with the value of the influence factor in the first yarn drawing process and the corresponding correlation coefficient. Because the correlation coefficient can reflect the correlation degree of the influence factors on the yarn tension change, the weighting of the influence factors can be divided based on the numerical value of the correlation coefficient, and the closer the absolute value of the correlation coefficient is to 1, the larger the weighting ratio is.
The influencing factors comprise spindle rotation speed fluctuation, external environment, machine operation vibration and the like.
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.
The upper edge position and the lower edge position of the winding bobbin can be detected by a positioning sensor. The yarn thickness when the winding bobbin is full is equal to the flange width of the winding bobbin. The operation parameters of the winder winding device comprise the parameters of the moving speed of the yarn guide nozzle, the yarn winding density and the like, and the number of times of yarn guiding required for reaching the yarn thickness when the winding yarn drum is full can be determined according to the operation parameters of the winder winding device and the yarn type.
When the winding yarn drum is judged to be not full, the offset distance of the yarn guiding nozzle is also called, the offset distance of the yarn guiding nozzle is added to the yarn guiding motor stroke, and the moving track of the yarn guiding nozzle in the next yarn guiding process is re-planned based on the yarn guiding motor stroke added with the offset distance of the yarn guiding nozzle.
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.
If the yarn guiding mouth has performed the offset action in the yarn guiding process, recording the offset distance of the yarn guiding mouth in the yarn guiding process, adding the offset distance of the yarn guiding mouth to the yarn guiding motor stroke, determining the moving track of the yarn guiding mouth in the yarn guiding process by the yarn guiding machine according to the yarn guiding motor stroke after the offset distance of the yarn guiding mouth is increased, and continuously moving towards the current moving direction based on the end position of the moving track in the yarn guiding process, so as to realize offset.
Since the yarn guiding nozzle is shifted, the stroke of the yarn guiding motor is changed, the reciprocating motion of the yarn guiding nozzle is realized by the forward and reverse rotation of the yarn guiding motor, and the forward and reverse rotation of the yarn guiding motor is controlled by the stroke of the yarn guiding motor, if the shifting distance of the yarn guiding nozzle is ignored, the starting and ending positions of the reciprocating motion of the subsequent yarn guiding nozzle can not be kept consistent with the previous positions, and the yarn guiding nozzle moves in the reverse direction after the yarn guiding is not completed once, so that the problem of yarn forming occurs. Therefore, after the offset distance of the yarn guide nozzle is carried out, the offset distance of the yarn guide nozzle is also added to the stroke of the yarn guiding motor, and the subsequent yarn guiding process can be normally carried out.
The offset distance of the yarn guide mouth is determined in particular by the distance between the flange position and the yarn take-up position, which in this embodiment is set to 0.8 mm.
The above-described embodiment is only a preferred embodiment of the present invention, and is not limited in any way, and other variations and modifications may be made without departing from the technical aspects set forth 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.
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| CN202211203624.4A CN115626525B (en) | 2022-09-29 | 2022-09-29 | Full-drum control system and method for winding device of silk winder |
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| CN202211203624.4A CN115626525B (en) | 2022-09-29 | 2022-09-29 | Full-drum control system and method for winding device of silk winder |
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| CN115626525A (en) | 2023-01-20 |
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Denomination of invention: A full drum control system and method for a winding device of a winding machine Effective date of registration: 20231120 Granted publication date: 20231003 Pledgee: Bank of Hangzhou Limited by Share Ltd. Shaoxing Xinchang branch Pledgor: ZHEJIANG KANGLI AUTOMATIC CONTROL TECHNOLOGY CO.,LTD. Registration number: Y2023980066431 |