A winding device for amorphous strip

Abstract

The present invention relates to the technical field of production regulation of amorphous strips, and specifically to a winding device for amorphous strips. The present invention sets sensors and fans inside and outside the production device, and then obtains the stable tension range and temperature suitable range in the production process of the amorphous strip through historical monitoring data analysis, and then determines the control method of the fan in the production device according to the deviation of the current tension data relative to the stable tension range and the deviation of the current temperature data relative to the temperature suitable range. The present invention quantifies and adjusts the control method of the external fan according to the deviation of the current tension data and temperature data from the stable concentration level, and uses the airflow generated by the fan to adjust the tension and temperature effects, thereby improving the production quality and efficiency of the amorphous strip.

Description

Technical Field

[0001] The invention relates to the technical field of production regulation of amorphous strips, and in particular to a winding device for amorphous strips. Background Art

[0002] Amorphous strip is a special metal strip that is widely used in the fields of electronics, electrical engineering, and energy. For example, it is used as the magnetic core of high-efficiency inductors, the magnetic components of sensors, and the core material of energy-saving transformers. At present, amorphous strips are generally produced using a winding device that integrates production and winding. This type of winding equipment mainly includes a production device for producing amorphous strips, a winding device for winding amorphous strips into rolls, and other related auxiliary mechanisms. The production device mainly sprays the amorphous melt raw material onto a high-speed rotating cooling roller for instant cooling to form a thin strip, and then conveys the produced amorphous strip to the winding device for winding through related guiding and conveying mechanisms, detection mechanisms, and deviation correction mechanisms.

[0003] In the production process of amorphous strips, temperature and tension are crucial to the quality of amorphous strips. In the prior art, the cooling conditions of the cooling rollers are mainly adjusted by temperature feedback to reduce the temperature impact, and the position or speed of the guide rollers and clamping rollers and other related parameters are adjusted by tension feedback; the feedback adjustment based on the cooling rollers is usually limited by the increased complexity and response speed, and the frequent feedback adjustment of the guide rollers and clamping rollers may lead to increased maintenance costs in the later stage, thereby affecting the production quality and efficiency of amorphous strips. Summary of the invention

[0004] In order to solve the technical problem of low production quality of amorphous strip in the prior art, the object of the present invention is to provide a winding device for amorphous strip, and the technical solution adopted is as follows:

[0005] The present invention proposes a winding device for amorphous strip, comprising a winding device body, the winding device body comprising a production device, the winding device further comprising a fan arranged at a set position around a cooling roller in the production device and a production feedback system; the production feedback system comprises a production monitoring module for collecting tension data and temperature data in the production process of amorphous coils, and a production analysis module, the production analysis module is used to connect the production monitoring module to obtain relevant data at the current moment, determine the control mode of the fan according to the relevant data, so as to control the fan; the relevant data comprises all historical tension data and historical temperature data when the amorphous coils are produced within a preset historical period at the current moment, and current tension data and current temperature data at the current moment; the step of determining the control mode comprises:

[0006] A stable tension range is obtained based on the fluctuation of the historical tension data; a suitable temperature range is obtained based on the local fluctuation of the historical tension data within the stable tension range; and a control method for controlling the fan in the production device is determined based on the deviation of the current tension data from the stable tension range and the deviation of the current temperature data from the suitable temperature range.

[0007] Furthermore, the method for obtaining the stable tension interval includes:

[0008] The preset historical period includes several production periods; according to the fluctuation deviation of the relative concentration level of all the historical tension data in each production period, the tension performance range in each production period is obtained;

[0009] The tension performance intervals in all production periods are integrated to obtain a stable tension interval in a preset historical period.

[0010] Furthermore, the method for obtaining the tension performance interval includes:

[0011] According to the concentrated features of the historical tension data in each production period, obtaining reference tension data for each production period;

[0012] In each production period, a historical tension data sequence is constructed according to the collection time sequence of the historical tension data; in each of the historical tension data sequences, the historical tension data sequence is divided into a plurality of sequence sub-segments according to the fluctuation of the difference between all the historical tension data and the corresponding reference tension data;

[0013] A stable sequence subsegment is obtained according to the fluctuation degree of the historical tension data in the sequence subsegment, and the maximum value in the stable sequence subsegment is used as the interval endpoint of the tension expression interval, and the tension expression interval is a closed interval.

[0014] Furthermore, the method for obtaining the stable tension interval includes:

[0015] In a preset historical period, the intersection of the tension performance intervals in all production periods is used as a stable tension interval in the preset historical period.

[0016] Furthermore, the method for determining the suitable temperature range includes:

[0017] According to the fluctuation of each of the historical tension data in the stable tension interval in the local time domain, all the confident tension data are screened out from all the historical tension data in the stable tension interval;

[0018] The historical temperature data corresponding to the same collection time of the confidence tension data is obtained as reference temperature data, and the maximum values ​​of all the reference temperature data are correspondingly used as the interval endpoints of the temperature suitable interval, and the temperature suitable interval is a closed interval.

[0019] Furthermore, the method for obtaining the confidence tension data includes:

[0020] Taking all the historical tension data within the stable tension interval as data to be analyzed, and constructing a preset neighborhood with the data to be analyzed as the center;

[0021] Obtaining the non-noise confidence of each data to be analyzed according to the deviation level of each historical tension data relative to the data to be analyzed in a preset neighborhood of each data to be analyzed and the extreme difference of the historical tension data in the preset neighborhood;

[0022] The data to be analyzed whose non-noise confidence is greater than a preset threshold is used as confidence tension data.

[0023] Furthermore, the method for obtaining the non-noise confidence comprises:

[0024] According to the extreme condition of the historical tension data in a preset neighborhood, obtaining a first noise parameter corresponding to the data to be analyzed;

[0025] According to the data difference between all the historical tension data and the data to be analyzed in a preset neighborhood, a second noise parameter corresponding to the data to be analyzed is obtained; the data difference is positively correlated with the second noise parameter;

[0026] The non-noise confidence of each of the to-be-analyzed data is obtained according to the first noise parameter and the second noise parameter, and the first noise parameter and the second noise parameter are both negatively correlated with the non-noise confidence.

[0027] Furthermore, the method for determining a control mode of controlling a fan in the production device includes:

[0028] According to the deviation of the current tension data from the stable tension interval, the rotation direction of the fan is determined, and the tension deviation degree of the current tension data is obtained; the difference between the current temperature data and the maximum value of the temperature suitable interval is normalized, and the normalized value is used as the temperature deviation degree of the current temperature data;

[0029] The negative correlation mapping of the tension deviation degree is used as the weight of the temperature deviation degree, the temperature deviation degree is weighted by the weight, and the speed adjustment coefficient is determined according to the sum of the weighted result and the tension deviation degree;

[0030] The fan speed of the fan is determined according to the speed adjustment coefficient.

[0031] Furthermore, the method for obtaining the fan speed includes:

[0032] The total length of the interval of the preset speed range of the fan is used as the adjustment reference value; the speed corresponding to the lower limit of the interval of the preset speed range is used as the basic speed, and the speed adjustment coefficient is used as the adjustment weight of the adjustment reference value to obtain the adjustment amplitude; the sum of the basic speed and the adjustment amplitude is used as the fan speed.

[0033] Furthermore, the method for obtaining the rotation direction and the tension deviation degree includes:

[0034] If the current tension data is greater than the right end point of the stable tension interval, the rotation direction is the rotation direction corresponding to air supply; if the current tension data is less than the left end point of the stable tension interval, the rotation direction is the rotation direction corresponding to air suction; if the current tension data is within the stable tension interval, the fan does not rotate;

[0035] The absolute values ​​of the differences between the current tension data and the two endpoints of the stable tension interval are calculated respectively, and the minimum absolute value of the difference is normalized to obtain the tension deviation degree.

[0036] The present invention has the following beneficial effects:

[0037] The present invention sets an additional fan in the production device of amorphous strip, and then obtains all historical tension data and historical temperature data when producing amorphous coils in a preset historical period at the current moment, and obtains the current tension data and current temperature data at the current moment; obtains the stable tension interval according to the fluctuation change of the historical tension data, and takes the amplitude interval with stable and concentrated tension as the stable tension interval for subsequent evaluation of the deviation of the current tension data, and then quantifies the control coefficient; according to the local fluctuation of the historical tension data in the stable tension interval, eliminates the influence of the noise corresponding to the tension data, and accurately obtains the temperature suitable interval; according to the deviation of the current tension data relative to the stable tension interval, combined with the deviation of the current temperature data relative to the temperature suitable interval, determines the control mode of the fan in the production device. The present invention quantifies and adjusts the control mode of the external fan according to the deviation of the current tension data and temperature data relative to the stable and concentrated level, and uses the fan to generate airflow to adjust the tension and temperature influence, thereby improving the production quality and efficiency of amorphous strip. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] In order to more clearly illustrate the technical solutions and advantages in the embodiments of the present invention or the prior art, the drawings required for use in the embodiments or the prior art descriptions are briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0039] Figure 1 A structural module diagram of a winding device for an amorphous strip provided by an embodiment of the present invention;

[0040] Figure 2 A schematic structural diagram of a winding device for an amorphous strip provided by an embodiment of the present invention;

[0041] Figure 3 A schematic diagram of a partial structure of a production device provided by an embodiment of the present invention;

[0042] Figure 4 A schematic diagram of a partial structure of a connecting rod structure in a deviation correction mechanism provided by an embodiment of the present invention;

[0043] Figure 5 A schematic diagram of a partial structure of a rotating shaft structure in a deviation correction mechanism provided by an embodiment of the present invention;

[0044] Figure 6 A schematic diagram of a partial structure of a winding mechanism provided by an embodiment of the present invention;

[0045] Figure 7 A schematic diagram of a partial structure of an improved production device provided by an embodiment of the present invention;

[0046] Figure 8 A structural module diagram of a production feedback system provided by an embodiment of the present invention;

[0047] Fig. 9 A flow chart of a data monitoring and analysis method for a production feedback system provided by one embodiment of the present invention;

[0048] Fig.10 A flow chart of a method for obtaining a stable tension interval provided by an embodiment of the present invention;

[0049] Fig.11 A flow chart of a method for obtaining an appropriate temperature range provided by an embodiment of the present invention;

[0050] Among them: 1. Production device; 2. Conveying mechanism; 3. Detection component; 4. Correction mechanism; 5. Winding mechanism; 6. Sliding rod; 7. Sliding column; 8. Connecting block; 9. Feeding pipe; 10. Melting spray bag; 11. Fixed box; 12. Cooling bin; 13. Cooling roller; 14. Guide roller; 15. Clamping roller; 16. Lifting cylinder; 17. Air inlet pipe; 18. Belt; 19. Electric telescopic rod; 21. Fixed plate; 22. Rotating roller 1; 23. Rotating roller 2; 24. Connecting shaft 1; 25. Connecting shaft 2; 26. Connecting shaft three; 27. Conveying motor; 31. Detection shaft; 32. Roller; 40. Bottom plate; 41. Support plate; 42. Mounting plate; 43. Rotating shaft; 44. Correction motor; 51. U-shaped plate; 52. Rotating column; 53. Adsorption roller; 54. Exhaust pipe; 55. Winding motor; 56. Vacuum pump; 60. Control system; 61. Production feedback system; 111. Fan; 131. Temperature sensor; 132. Tension sensor; 101. Production monitoring module; 102. Production analysis module. DETAILED DESCRIPTION

[0051] In order to further explain the technical means and effects adopted by the present invention to achieve the predetermined invention purpose, the following is a detailed description of the specific implementation, structure, features and effects of a winding device for amorphous strips proposed according to the present invention in combination with the accompanying drawings and preferred embodiments. In the following description, different "one embodiment" or "another embodiment" does not necessarily refer to the same embodiment. In addition, specific features, structures or characteristics in one or more embodiments may be combined in any suitable form.

[0052] Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs.

[0053] The following is a detailed description of a specific solution of a winding device for amorphous strip provided by the present invention in conjunction with the accompanying drawings.

[0054] See also Figure 1 , which shows a structural module diagram of a winding device for amorphous strip provided by an embodiment of the present invention; the winding device includes a production device 1, a conveying mechanism 2, a detection component 3, a deviation correction mechanism 4, a winding mechanism 5 and a control system 60. The production device 1 is also a strip spraying device, which is used to quickly cool the amorphous melt to produce a thin amorphous strip; the conveying mechanism 2 is used to guide and transmit the amorphous strip produced by the production device 1; the detection component 3 is used to sense the path signal of the amorphous strip and adjust the position of the deviation correction mechanism 4; the deviation correction mechanism 4 is used to adjust the position deviation of the amorphous strip; the winding mechanism 5 is used for winding the amorphous strip; the control system 60 has a built-in computing control chip FPGA, which performs data processing and control of various mechanisms and device components through programming.

[0055] To understand the working process of the amorphous strip winding equipment, please refer to Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6 , which shows a structural schematic diagram of a winding device for amorphous strip provided by an embodiment of the present invention, a local structural schematic diagram in a production device, a local structural schematic diagram of a connecting rod structure in a correction mechanism, a local structural schematic diagram of a rotating shaft structure in a correction mechanism, and a local structural schematic diagram in a winding mechanism.

[0056] In the above figure, a feed pipe 9 is installed at the upper end of a fixed box 11 in the production device 1, and the lower end of the feed pipe 9 is connected to the smelting spray bag 10 and extends to the inside of the cooling bin 12. The amorphous melt passes through the feed pipe 9 to the smelting spray bag 10 to spray the melt to the cooling roller 13. The cooling roller 13 rotates at a high speed to quickly cool the outer surface thereof to form an amorphous strip. The air inlet pipe 17 at the bottom end of the cooling bin 12 supplies air into the bin to blow the amorphous strip away from the cooling roller 13. An opening is provided on one side of the cooling bin 12 close to the guide roller 14. The amorphous strip is manually guided between the guide roller 14 and the clamping roller 15. The lifting cylinder 16 drives the clamping roller 15 to rise and clamp the amorphous strip so as to be transmitted by the conveying mechanism 2.

[0057] The fixed plate 21 in the conveying mechanism 2 plays the role of fixing and protecting various components. The conveying motor 27 drives the connecting shaft 3 26 to rotate, and drives the connecting shaft 1 24 and the connecting shaft 2 25 to rotate through the belt 18, and then drives the rotating roller 1 22 and the rotating roller 2 23 to rotate, so as to convey the amorphous strip;

[0058] In the detection assembly 3, when the amorphous strip is conveyed to the outer surface of the roller 32, the roller 32 is pressed downward due to gravity, so that the detection shaft 31 descends, and the descending signal of the detection shaft 31 is transmitted to the vacuum pump 56 and the winding motor 55 in the winding mechanism 5 to start operation;

[0059] In the deviation correction mechanism 4, when the amorphous strip is conveyed to the rotating shaft 43, the deviation correction motor 44 in the rotating shaft 43 structure drives the rotating shaft 43 to rotate and continue to convey the amorphous strip. When the position of the amorphous strip is offset during the conveying process, the electric telescopic rod 19 in the connecting rod structure drives the connecting block 8 to make a linear reciprocating motion, thereby driving the slide column 7 to slide on the slide rod 6. The upper end of the slide column 7 passes through the top of the bottom plate 40 and is connected to the lower end of the support plate 41. The bottom plate 40 is provided with a slide groove adapted to the slide column 7, so that the position of the deviation correction mechanism 4 can be adjusted, thereby adjusting the position of the amorphous strip on the outer surface of the rotating shaft 43, performing position correction, and reducing the deformation of the amorphous alloy strip during the winding process; the mounting plate 42 plays the role of fixing and supporting various components;

[0060] In the winding mechanism 5, the amorphous strip passes through the rotating column 52 and arrives below the adsorption roller 53. The vacuum pump 56 extracts the gas inside the adsorption roller 53 through the exhaust pipe 54 to form a negative pressure to adsorb the amorphous alloy strip. At the same time, the winding motor 55 is started to automatically wind the amorphous strip. The U-shaped plate 51 is used to protect the amorphous strip after winding.

[0061] Among them, the upper surfaces of rotating roller 1 22, rotating roller 23, rotating shaft 43 and rotating column 52 are located in the same horizontal plane. When the tail end of the amorphous strip passes through the detection component 3, the detection shaft 31 is lifted upward. During the lifting process, the vacuum pump 56 and the winding motor 55 continue to run for a period of time, and the remaining amorphous strip can be completely wound up.

[0062] The embodiment of the present invention is based on the above-mentioned winding device, which can be referred to as the winding device body, and further provides a fan 111 and a production feedback system 61, thereby finally obtaining an improved winding device according to the embodiment of the present invention. The fan 111 is provided on the other side of the conveying direction of the amorphous strip in the production device 1, that is, on the side away from the guide roller 14 and the clamping roller 15, and is used to generate airflow to indirectly regulate the surface tension and temperature of the amorphous strip, so as to improve the production quality; please refer to Figure 7 , which shows a partial structural diagram of an improved production device provided by an embodiment of the present invention; at the same time, the production feedback system 61 is set in the production device 1, please refer to Figure 8 , which shows a structural module diagram of a production feedback system provided by an embodiment of the present invention, specifically comprising: a production monitoring module 101, a production analysis module 102; the production monitoring module 101 includes a tension sensor 132 and a temperature sensor 131, and the tension sensor 132 and the temperature sensor 131 are both arranged on the cooling roller 13 in the production device 1, and the installation position is as shown in FIG. Figure 7 , used to collect tension data and temperature data during the production process of amorphous coils.

[0063] The production analysis module 102 is connected to the production monitoring module 101, and can be specifically connected by wired communication or wireless communication to obtain the tension data and temperature data collected by the tension sensor 132 and the temperature sensor 131 in the production monitoring module 101, and determine the control method of the fan 111 according to the tension data and the temperature data to control the fan 111.

[0064] Production feedback system implementation Fig. 9 For the method shown, see Fig. 9 , which shows a flow chart of a data monitoring and analysis method of a production feedback system provided by an embodiment of the present invention, specifically comprising:

[0065] Step S1, obtaining all historical tension data and historical temperature data when producing amorphous coils within a preset historical period at the current moment, and obtaining current tension data and current temperature data at the current moment.

[0066] In one embodiment of the present invention, the tension sensor and temperature sensor in the production feedback system are first used to collect the temperature data and tension data of the amorphous strip in the production process in real time. The rotation of the cooling roller drives the movement of the tension sensor and the temperature sensor to contact the amorphous strip, thereby measuring the temperature data and the tension data. As an example, the preset historical period is set to 30 days. Within the historical 30 days at the current moment, the temperature data and the tension data of the amorphous strip are collected every day at a preset sampling frequency to obtain all the historical temperature data and historical tension data, and the current tension data and the current temperature data at the current moment are obtained for real-time feedback and adjustment.

[0067] It should be noted that the temperature data and tension data must be collected for amorphous strips of the same batch model with the same quality requirements to avoid affecting the subsequent production adjustment effect; the daily production plan of amorphous strips may also be inconsistent, resulting in uninterrupted start and stop of equipment. In one embodiment of the present invention, within a preset historical period of each day, the maximum continuous operation time is used as the daily collection and monitoring period, and all historical temperature data and historical tension data within each collection and monitoring period are obtained; in other embodiments, the implementer may also use the corresponding production time of each production plan or the corresponding time of the production plan in the same period of each day as a collection and monitoring period to ensure the richness or similarity of the obtained production monitoring data.

[0068] It should be noted that due to the deviation in the installation position of the tension sensor and the temperature sensor, there may be a slight deviation in the collection timing of the temperature data and the tension data. However, since the rotation speed of the cooling roller is usually high, it can be approximately ignored. However, the timing of the two needs to be aligned so that the temperature data and the tension data correspond one to one. The preset collection frequency needs to be determined according to the rotation speed of the cooling roller to ensure that the tension sensor and the temperature sensor can monitor the data every time they rotate to contact the amorphous strip. I will not go into details here.

[0069] Step S2, obtaining a stable tension range based on the fluctuation of historical tension data; obtaining a suitable temperature range based on the local ratio fluctuation of historical tension data within the stable tension range; determining a control method for controlling the fan in the production device based on the deviation of the current tension data from the stable tension range and the deviation of the current temperature data from the suitable temperature range.

[0070] Considering that when the equipment is operating normally, the tension and temperature of the amorphous strip may fluctuate slightly within an appropriate range, which does not affect the production quality of the amorphous strip; but if the tension and temperature deviate from the appropriate range, the amorphous strip may have quality problems such as bubbles, uneven thickness, wrinkles and even breakage; considering that the control system of the equipment usually has a certain feedback adjustment mechanism, so that the tension data and temperature data are roughly stable within a certain range; therefore, the embodiment of the present invention obtains a stable tension range based on the fluctuation of historical tension data, and further obtains a suitable temperature range based on the stable tension range; the stable tension range and the suitable temperature range are both stable and suitable data performance ranges in the production process.

[0071] Preferably, in one embodiment of the present invention, considering that a relatively concentrated data level is a stable and suitable interval level in the production process, and each day corresponds to a collection and monitoring period, namely, a production period, the concentration level of the historical tension data in each collection and monitoring period can be comprehensively considered to evaluate the concentrated performance interval of the historical tension data; considering that the historical tension data usually has a certain volatility, but may also be affected by noise, that is, each historical tension data in the concentrated performance interval is not normal tension data, and there is an accidental compliance with the concentrated performance level caused by noise; and because the noise is random and does not last long, it can be combined with the performance analysis and evaluation of the local neighborhood historical tension data; based on this, the method for obtaining the stable tension interval includes:

[0072] See also Fig.10 , which shows a flow chart of a method for obtaining a stable tension interval provided by an embodiment of the present invention, specifically comprising:

[0073] Step S1001, a preset historical period includes several production periods; according to the fluctuation deviation of the relative concentration level of all historical tension data in each production period, the tension performance range in each production period is obtained.

[0074] In one embodiment of the present invention, a production period is a collection and monitoring period corresponding to the maximum continuous operating time in a day, and a total of 30 production periods are included in the preset historical period; in each production period, the amplitude interval corresponding to the historical tension data at a concentrated level is used as the tension performance interval of the corresponding production period.

[0075] Among them, in a preferred embodiment of the present invention, reference tension data representing the concentration level is first obtained, and the fluctuation deviation of the historical tension data in the production period is evaluated based on the reference tension data; the corresponding data segment of the historical tension data with a small and stable fluctuation deviation can be considered as the tension performance interval of the corresponding production period; therefore, the method for obtaining the tension performance interval includes:

[0076] According to the concentrated features of the historical tension data in each production period, the reference tension data of each production period is obtained;

[0077] In each production period, a historical tension data sequence is constructed according to the collection time sequence of the historical tension data; in each historical tension data sequence, the historical tension data sequence is divided into a number of sequence sub-segments according to the fluctuation of the difference between all the historical tension data and the corresponding reference tension data;

[0078] A stable sequence subsegment is obtained according to the fluctuation degree of the historical tension data in the sequence subsegment, and the maximum value in the stable sequence subsegment is used as the interval endpoint of the tension expression interval, and the tension expression interval is a closed interval.

[0079] As an example, first, in each production period, the mode of the historical tension data is used as the reference tension data, and then the corresponding historical tension data sequence is constructed. The absolute value of the difference between each historical tension data and the reference tension data is further subjected to curve fitting, and the curve segment between adjacent extreme values ​​in the curve is used as a tension sub-segment, and the sub-sequence corresponding to the tension sub-segment in the historical tension data sequence is the sequence sub-segment; the mean of all historical tension data in each sequence sub-segment is calculated. The smaller the mean, the closer it is to the amplitude of the reference tension data, and the greater the possibility of the tension performance level in the corresponding production period. Therefore, each sequence sub-segment is sorted in ascending order by the mean, and the first 20% of the sequence sub-segments are used as the sequence sub-segments to be analyzed; the standard deviation of all historical tension data in each sequence sub-segment to be analyzed is obtained. The smaller the standard deviation, the more stable the fluctuation of the sequence sub-segment to be analyzed. Therefore, the sequence sub-segment to be analyzed with the smallest standard deviation is selected as a stable sequence sub-segment, and then the maximum value in the stable sequence sub-segment is used as the interval endpoint of the tension performance interval to obtain the tension performance interval.

[0080] It should be noted that there may be multiple modes in the historical tension data during the production period. The mode can be obtained by averaging, or the concentration characteristics of the historical tension data can be evaluated in combination with the mean and median, such as weighting the three to obtain reference tension data. The curve fitting method is the least squares method, which and the acquisition of extreme values ​​and standard deviations are all well-known technologies and will not be elaborated here.

[0081] In other examples, implementers may also use other curve fitting methods, or set their own ratios such as 30% or 50% to screen the sequence subsegments to be analyzed, or screen multiple sequence subsegments with smaller standard deviations to be analyzed as stable sequence subsegments, to obtain multiple stable sequence subsegments to evaluate the maximum value to obtain the tension performance interval, or use variance instead of standard deviation, which will not be repeated here.

[0082] Step S1002, synthesizing the tension performance intervals in all production periods to obtain a stable tension interval in a preset historical period.

[0083] As an example, further within the preset historical period, the intersection of the tension performance intervals within all production periods is used as the stable tension interval within the preset historical period.

[0084] Since the historical tension data is fluctuating, the historical tension data in the tension performance range may exist continuously or individually in time series. When the historical tension data is relatively in a normal and stable range, it usually appears more continuously rather than as individual discrete data points. Individual discrete data points may be caused by noise. The historical temperature data corresponding to the noise tension data in the same time series may be abnormal temperature data, which has a low confidence level in evaluating the suitable temperature range. Therefore, the embodiment of the present invention further obtains the suitable temperature range based on the local ratio fluctuation of the historical tension data in the stable tension range.

[0085] Preferably, in one embodiment of the present invention, the method for determining the suitable temperature range includes:

[0086] See also Fig.11 , which shows a flow chart of a method for obtaining a suitable temperature range provided by an embodiment of the present invention, specifically comprising:

[0087] Step S1101 , according to the fluctuation of each historical tension data in the local time domain within the stable tension interval, all the confident tension data are screened out from all the historical tension data within the stable tension interval.

[0088] In a preferred embodiment of the present invention, considering that the more drastic the fluctuation of data in the local time domain of a historical tension data is, the more likely it is that its accidental performance in the time series conforms to the tension performance interval, and the more likely it is noise; and the extreme difference of the fluctuation deviation and the fluctuation range can indirectly reflect the degree of data fluctuation; therefore, the method for obtaining the confidence tension data includes:

[0089] All historical tension data within the tension performance interval are taken as the data to be analyzed, and a preset neighborhood is constructed with the data to be analyzed as the center; the non-noise confidence of each data to be analyzed is obtained according to the deviation level of each historical tension data in the preset neighborhood of each data to be analyzed relative to the data to be analyzed, and the extreme value of the historical tension data in the preset neighborhood; the data to be analyzed whose non-noise confidence is greater than the preset threshold is taken as the confidence tension data.

[0090] In an example of the present invention, the preset threshold is set to 0.3, and the data to be analyzed with a non-noise confidence greater than 0.3 is used as confidence tension data. The implementer can also set the threshold by himself.

[0091] The method for obtaining the non-noise confidence includes:

[0092] According to the extreme condition of historical tension data in a preset neighborhood, a first noise parameter corresponding to the data to be analyzed is obtained;

[0093] According to the data difference between all historical tension data and the data to be analyzed in the preset neighborhood, a second noise parameter corresponding to the data to be analyzed is obtained; the data difference is positively correlated with the second noise parameter;

[0094] The non-noise confidence of each to-be-analyzed data is obtained according to the first noise parameter and the second noise parameter, and both the first noise parameter and the second noise parameter are negatively correlated with the non-noise confidence.

[0095] As an example, the size of the preset neighborhood is 21, that is, taking each data to be analyzed as the center, 10 historical tension data are obtained at both ends of the time series to construct the preset neighborhood. The implementer can also set the size of the preset neighborhood by himself;

[0096] The calculation formula of non-noise confidence is: ;in, It is the serial number of the data to be analyzed within the preset historical period; For the The non-noise confidence of the data to be analyzed; is a standard normalization function. In this example, the maximum and minimum normalization method is used. For the The serial number of the historical tension data in the preset neighborhood of the data to be analyzed, where Not included ; For the The total number of historical tension data within the preset neighborhood of the data to be analyzed; For the The first Historical tension data; For the The maximum historical tension data within the preset neighborhood of the data to be analyzed; For the The minimum historical tension data within the preset neighborhood of the data to be analyzed; For the A first noise parameter of the data to be analyzed; For the Data to be analyzed; For the The second noise parameter of the data to be analyzed.

[0097] In the above formula, the larger the range, the larger the ratio of the corresponding maximum value to the minimum value, and the larger the first noise parameter; secondly, the mean absolute value of the difference between all historical tension data and the data to be analyzed in the preset neighborhood is used as the second noise parameter. The larger the mean absolute value of the difference, the greater the possibility of noise, and the larger the second noise parameter; then the first noise parameter is multiplied and combined with the second noise parameter, and the product is used as In Negative correlation normalization is performed and the logic is adjusted to obtain non-noise confidence.

[0098] In other examples, the implementer may directly use the range as the first noise parameter, and preset the cumulative value or mode of the absolute value of the data difference between all historical tension data and the data to be analyzed in the neighborhood as the second noise parameter; then use addition or weighted summation to merge and perform negative correlation normalization, such as using the merged result as an exponential function with the natural constant e as the base. In , no more details.

[0099] Step S1102, obtaining historical temperature data corresponding to the same collection time as the confidence tension data as reference temperature data, and taking the maximum values ​​of all reference temperature data as the interval endpoints of the temperature suitable interval, and the temperature suitable interval is a closed interval.

[0100] Considering that the tension of amorphous strip is affected by temperature to a certain extent, the tension data in a stable normal range usually corresponds to stable and suitable temperature data, and the suitable temperature range can be directly obtained using the confidence tension data.

[0101] As an example, the confidence tension data is obtained corresponding to the historical temperature data collected at the same time, and then the suitable temperature range is obtained, which will not be repeated.

[0102] At this point, the stable tension range and suitable temperature range within the preset historical period are obtained.

[0103] Taking into account that by setting a fan in the production device, the amorphous strip can be cooled to a certain extent, and a certain airflow can be formed on the surface of the amorphous strip, thereby adjusting its tension; the external fan has the advantages of high response and fine-tuning relative to the feedback adjustment of the cooling roller and the guide roller; therefore, the embodiment of the present invention further determines the control method of the fan in the production device according to the deviation of the current tension data relative to the stable tension range, combined with the deviation of the current temperature data relative to the suitable temperature range; the adjustment accuracy of the fan is quantitatively evaluated according to the obtained stable tension range and suitable temperature range, thereby adjusting the tension and temperature influence during the production of amorphous strip to improve production quality and efficiency.

[0104] Preferably, in one embodiment of the present invention, considering that when the tension of the amorphous strip deviates from the stable tension range, there may be a situation where the tension is too large or too small, and the tension deviation degree is also different, different adjustment methods are required, that is, it is necessary to quantify the direction and size of the airflow generated by the fan; considering that the temperature of the amorphous strip deviates from the suitable temperature range and still has a great impact on the product quality, the fan speed is adjusted jointly by the comprehensive tension deviation degree and temperature deviation degree; based on this, the method for determining the control method of the fan in the production device includes:

[0105] According to the deviation of the current tension data from the stable tension range, the rotation direction of the fan is determined, and the tension deviation degree of the current tension data is obtained; the difference between the current temperature data and the maximum value of the temperature suitable range is normalized, and the normalized value is used as the temperature deviation degree of the current temperature data;

[0106] The negative correlation mapping of the tension deviation degree is used as the weight of the temperature deviation degree, and the sum of the weighted result and the tension deviation degree is used as the speed adjustment coefficient; the fan speed of the fan is determined according to the speed adjustment coefficient.

[0107] As an example, the speed adjustment factor is calculated as: ;in, is the speed adjustment coefficient at the current moment; is the standard normalization function; is an S-type function; It is the tension deviation degree of the current tension data; is the current temperature data; is the upper limit of the temperature suitable range; is the temperature deviation degree of the current temperature data; is the weight of the temperature deviation degree.

[0108] In the above formula, since the amorphous ribbon is made by rapid cooling of a high-temperature melt, the temperature of the amorphous ribbon is usually higher than or even higher than the upper limit of the range. Normalize the related mapping. When the temperature deviates from and exceeds the upper limit of the suitable temperature range, the corresponding value is larger. The tension deviation degree is negatively correlated and normalized in the form of as the weight of the temperature deviation degree; the higher the tension deviation degree, the lower the weight of the temperature deviation degree; the lower the tension deviation degree, the higher the weight of the temperature deviation degree; in other embodiments of the present invention, the implementer may also adopt other negative correlation normalization means, such as taking the tension deviation degree as an exponential function with the natural constant e as the base Index in Or do the reciprocal operation.

[0109] In the embodiment of the present invention, considering that the installation position of the fan is located on the inner wall of the cooling bin on the other side of the conveying direction of the amorphous strip, if the current tension data is low, the tension is too small, which indirectly reflects that the moving speed of the amorphous strip is too high. In this case, the fan is required to generate an airflow in the opposite direction of the moving direction of the amorphous strip, that is, to generate wind resistance, appropriately hindering the movement of the amorphous strip to adjust the tension of the amorphous strip; on the contrary, it is necessary to promote the movement of the amorphous strip. At the same time, if there is no deviation, no adjustment is required.

[0110] Therefore, in a preferred embodiment of the present invention, if the current tension data is greater than the right end point of the stable tension interval, the rotation direction is the rotation direction corresponding to the air supply; if the current tension data is less than the left end point of the stable tension interval, the rotation direction is the rotation direction corresponding to the air suction; if the current tension data is within the stable tension interval, the fan does not rotate.

[0111] It should be noted that when determining the rotation direction of the fan, the embodiment of the present invention defaults to the fan blades rotating clockwise as the air supply state, but whether the fan supplies air is related to the installation method of the fan blades, and the implementer can also adjust it according to the actual situation. The method for calculating the degree of tension deviation is: respectively calculate the absolute value of the difference between the two endpoints of the interval of the current tension data relative to the stable tension interval, normalize the minimum absolute value of the difference, and obtain the degree of tension deviation. Normalization can be performed using a linear normalization method, or other normalization methods can be used, which will not be repeated here.

[0112] In a preferred embodiment of the present invention, the method for obtaining the fan speed includes:

[0113] The total length of the preset speed range of the fan is used as the adjustment reference value; the speed corresponding to the lower limit of the preset speed range is used as the basic speed, and the speed adjustment coefficient is used as the adjustment weight of the adjustment reference value to obtain the adjustment range; the sum of the basic speed and the adjustment range is used as the fan speed.

[0114] As an example, the fan speed is calculated as: ;in, is the fan speed at the current moment; The speed corresponding to the lower limit of the preset speed range, that is, the basic speed; is the speed adjustment coefficient at the current moment; The speed corresponding to the upper limit of the preset speed range; is the adjustment reference value at the current moment; is the adjustment amplitude at the current moment.

[0115] In the above formula, based on the lowest speed in the preset speed range, the speed is continuously adjusted upward in combination with the speed adjustment coefficient. The maximum speed adjustment coefficient is 1, and the fan speed can be adjusted to the highest speed in the preset speed range.

[0116] It should be noted that the preset speed range needs to be determined in combination with the model and specification parameters of the fan, which will not be elaborated here.

[0117] At this point, the fan control mode at the current moment is determined. Then the fan control mode determined by the production analysis module is fed back to the control system to control the operation of the fan.

[0118] In one embodiment of the present invention, the control method determined by the production analysis module, including the fan rotation direction and the fan speed, is sent to the control system through the production feedback system. After receiving the feedback information, the control system performs real-time control on the fan rotation direction and speed, thereby improving the quality of the produced amorphous strip.

[0119] In summary, the present invention sets sensors and fans inside and outside the production device, and then obtains the stable tension range and suitable temperature range in the amorphous strip production process through historical monitoring data analysis, and then determines the control method of the fan in the production device according to the deviation of the current tension data relative to the stable tension range and the deviation of the current temperature data relative to the suitable temperature range. The present invention quantifies and adjusts the control method of the external fan according to the deviation of the current tension data and temperature data relative to the stable concentration level, and uses the airflow generated by the fan to adjust the tension and temperature effects, thereby improving the production quality and efficiency of amorphous strips.

[0120] It should be noted that the sequence of the above embodiments of the present invention is only for description and does not represent the advantages and disadvantages of the embodiments. The processes depicted in the accompanying drawings do not necessarily require the specific order or continuous order shown to achieve the desired results. In some embodiments, multitasking and parallel processing are also possible or may be advantageous.

[0121] The various embodiments in this specification are described in a progressive manner, and the same or similar parts between the various embodiments can be referenced to each other, and each embodiment focuses on the differences from other embodiments.

Claims

1. A winding device for an amorphous strip, comprising a winding device body, wherein the winding device body comprises a production device, characterized in that: The winding device also includes a fan and a production feedback system arranged on the opposite side of the amorphous strip conveying direction in the production device, which is used to generate airflow to indirectly control the surface tension and temperature of the amorphous strip; the production feedback system includes a production monitoring module and a production analysis module for collecting tension data and temperature data in the production process of the amorphous coil; the production monitoring module includes a tension sensor and a temperature sensor, and the tension sensor and the temperature sensor are both arranged on the cooling roller in the production device; the production analysis module is used to connect to the production monitoring module to obtain relevant data at the current moment, and determine the control mode of the fan according to the relevant data to control the fan; the relevant data includes all historical tension data and historical temperature data when the amorphous coil is produced within a preset historical period at the current moment, as well as current tension data and current temperature data at the current moment; The step of determining the control mode includes: Obtain a stable tension interval according to the fluctuation of the historical tension data; obtain a suitable temperature interval according to the local fluctuation of the historical tension data within the stable tension interval; determine a control method for controlling the fan in the production device according to the deviation of the current tension data from the stable tension interval and the deviation of the current temperature data from the suitable temperature interval; The method for obtaining the stable tension interval includes: The preset historical period includes several production periods; according to the fluctuation deviation of the relative concentration level of all the historical tension data in each production period, the tension performance range in each production period is obtained; The tension performance intervals in all production periods are integrated to obtain a stable tension interval in a preset historical period; The method for the suitable temperature range includes: According to the fluctuation of each of the historical tension data in the stable tension interval in the local time domain, all the confident tension data are screened out from all the historical tension data in the stable tension interval; Acquire the historical temperature data corresponding to the same acquisition time of the confidence tension data as reference temperature data, and use the maximum values ​​of all the reference temperature data as the interval endpoints of the temperature suitable interval, where the temperature suitable interval is a closed interval; The method for determining a control mode of controlling a fan in the production device comprises: According to the deviation of the current tension data from the stable tension interval, the rotation direction of the fan is determined, and the tension deviation degree of the current tension data is obtained; the difference between the current temperature data and the maximum value of the temperature suitable interval is normalized, and the normalized value is used as the temperature deviation degree of the current temperature data; The negative correlation mapping of the tension deviation degree is used as the weight of the temperature deviation degree, the temperature deviation degree is weighted by the weight, and the speed adjustment coefficient is determined according to the sum of the weighted result and the tension deviation degree; determining a fan speed of the fan according to the speed adjustment coefficient; The method for obtaining the tension expression interval includes: According to the concentrated features of the historical tension data in each production period, obtaining reference tension data for each production period; In each production period, a historical tension data sequence is constructed according to the collection time sequence of the historical tension data; in each of the historical tension data sequences, the historical tension data sequence is divided into a plurality of sequence sub-segments according to the fluctuation of the difference between all the historical tension data and the corresponding reference tension data; According to the fluctuation degree of the historical tension data in the sequence sub-segment, a stable sequence sub-segment is obtained, and the maximum value in the stable sequence sub-segment is used as the interval endpoint of the tension expression interval, and the tension expression interval is a closed interval; The method for obtaining the stable tension interval includes: In a preset historical period, the intersection of the tension performance intervals in all production periods is used as a stable tension interval in the preset historical period; The method for obtaining the fan speed includes: The total length of the preset speed range of the fan is used as the adjustment reference value; the speed corresponding to the lower limit of the preset speed range is used as the basic speed, and the speed adjustment coefficient is used as the adjustment weight of the adjustment reference value to obtain the adjustment amplitude; the sum of the basic speed and the adjustment amplitude is used as the fan speed; The method for obtaining the rotation direction and the tension deviation degree includes: If the current tension data is greater than the right end point of the stable tension interval, the rotation direction is the rotation direction corresponding to air supply; if the current tension data is less than the left end point of the stable tension interval, the rotation direction is the rotation direction corresponding to air suction; if the current tension data is within the stable tension interval, the fan does not rotate; The absolute values ​​of the differences between the current tension data and the two endpoints of the stable tension interval are calculated respectively, and the minimum absolute value of the difference is normalized to obtain the tension deviation degree.

2. The winding device for amorphous strip according to claim 1, characterized in that: The method for obtaining the confidence tension data comprises: Taking all the historical tension data within the stable tension interval as data to be analyzed, and constructing a preset neighborhood with the data to be analyzed as the center; Obtaining the non-noise confidence of each data to be analyzed according to the deviation level of each historical tension data relative to the data to be analyzed in a preset neighborhood of each data to be analyzed and the extreme difference of the historical tension data in the preset neighborhood; The data to be analyzed whose non-noise confidence is greater than a preset threshold is used as confidence tension data.

3. The winding device for amorphous strip according to claim 2, characterized in that: The method for obtaining the non-noise confidence comprises: According to the extreme condition of the historical tension data in a preset neighborhood, obtaining a first noise parameter corresponding to the data to be analyzed; According to the data difference between all the historical tension data and the data to be analyzed in a preset neighborhood, a second noise parameter corresponding to the data to be analyzed is obtained; the data difference is positively correlated with the second noise parameter; The non-noise confidence of each of the to-be-analyzed data is obtained according to the first noise parameter and the second noise parameter, and the first noise parameter and the second noise parameter are both negatively correlated with the non-noise confidence.

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