CN114634294B - Automatic substrate glass thickness adjusting method and system - Google Patents
Automatic substrate glass thickness adjusting method and system Download PDFInfo
- Publication number
- CN114634294B CN114634294B CN202210327202.1A CN202210327202A CN114634294B CN 114634294 B CN114634294 B CN 114634294B CN 202210327202 A CN202210327202 A CN 202210327202A CN 114634294 B CN114634294 B CN 114634294B
- Authority
- CN
- China
- Prior art keywords
- thickness
- substrate glass
- glass
- deviation
- calculating
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 239000011521 glass Substances 0.000 title claims abstract description 275
- 239000000758 substrate Substances 0.000 title claims abstract description 237
- 238000000034 method Methods 0.000 title claims abstract description 34
- 238000004519 manufacturing process Methods 0.000 claims abstract description 77
- 239000011159 matrix material Substances 0.000 claims description 28
- 238000004364 calculation method Methods 0.000 claims description 13
- 230000001105 regulatory effect Effects 0.000 claims description 8
- 230000001276 controlling effect Effects 0.000 claims description 6
- 238000010586 diagram Methods 0.000 description 2
- 238000007689 inspection Methods 0.000 description 2
- 239000006121 base glass Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000004973 liquid crystal related substance Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
- 238000003908 quality control method Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000002834 transmittance Methods 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B18/00—Shaping glass in contact with the surface of a liquid
- C03B18/02—Forming sheets
- C03B18/04—Changing or regulating the dimensions of the molten glass ribbon
- C03B18/06—Changing or regulating the dimensions of the molten glass ribbon using mechanical means, e.g. restrictor bars, edge rollers
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F17/00—Digital computing or data processing equipment or methods, specially adapted for specific functions
- G06F17/10—Complex mathematical operations
- G06F17/16—Matrix or vector computation, e.g. matrix-matrix or matrix-vector multiplication, matrix factorization
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P40/00—Technologies relating to the processing of minerals
- Y02P40/50—Glass production, e.g. reusing waste heat during processing or shaping
- Y02P40/57—Improving the yield, e-g- reduction of reject rates
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Mathematical Physics (AREA)
- General Physics & Mathematics (AREA)
- Mathematical Optimization (AREA)
- Pure & Applied Mathematics (AREA)
- Computational Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Data Mining & Analysis (AREA)
- Mathematical Analysis (AREA)
- Chemical & Material Sciences (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Algebra (AREA)
- Organic Chemistry (AREA)
- Databases & Information Systems (AREA)
- Software Systems (AREA)
- General Engineering & Computer Science (AREA)
- Computing Systems (AREA)
- Re-Forming, After-Treatment, Cutting And Transporting Of Glass Products (AREA)
Abstract
The invention provides a method and a system for automatically adjusting the thickness of substrate glass, which can realize the automatic adjustment of the thickness of the glass in the production process, reduce errors caused by manual adjustment, improve the adjustment precision and the adjustment efficiency and ensure the yield of substrate glass of a production line. The method comprises the following steps: s1, collecting the thickness of substrate glass; s2, calculating thickness deviation of the substrate glass, and if the deviation value is not larger than a set threshold value of the glass thickness, the thickness of the substrate glass meets the production requirement and is not adjusted; if the deviation value is larger than the set threshold value of the glass thickness, performing the next step; s3, calculating the traction speed of the traction roller or the thickness air quantity of the air pipe as a correction signal to automatically adjust the thickness of the substrate glass.
Description
Technical Field
The invention relates to the technical field of substrate glass manufacturing, in particular to a method and a system for automatically adjusting the thickness of substrate glass.
Background
The substrate glass is one of important raw materials for forming the liquid crystal panel, has great influence on the performance of the panel product, and the indexes such as resolution, transmittance, thickness, weight, visual angle and the like of the panel product are closely related to the quality of the adopted substrate glass.
Thickness and uniformity of thickness are one of the key factors in the quality control of the product during the production of the substrate glass, and thus thickness and uniformity of thickness are key technologies that must be officially related to the production process. However, in the normal production process of the substrate glass, the thickness and the uniformity of the thickness of the base glass can be directly and indirectly influenced due to the variation of the channel extraction amount, the glass liquid temperature and the surrounding environment of the muffle furnace, so that the quality of the substrate glass product is influenced.
The main method for adjusting the thickness and the thickness uniformity of the substrate glass at present is to manually measure the thickness of the off-line substrate glass according to thickness data and experience, and manually perform exploratory adjustment on the speed and the thickness air quantity of the traction roller according to the thickness data and experience, however, in the manual adjustment process, large errors exist in the speed and the thickness air quantity adjustment of the traction roller due to the difference of human subjective factors and the manual adjustment, and meanwhile, time hysteresis exists in the manual adjustment, so that the yield of the substrate glass of a production line is severely restricted.
Disclosure of Invention
In order to solve the problems in the prior art, the invention provides the automatic substrate glass thickness adjusting method and system, which can realize automatic adjustment of glass thickness in the production process, reduce errors caused by manual adjustment, improve the adjusting precision and the adjusting efficiency and ensure the yield of substrate glass of a production line.
In order to achieve the above purpose, the present invention provides the following technical solutions:
an automatic substrate glass thickness adjusting method comprises the following steps:
s1, collecting the thickness of substrate glass;
s2, calculating thickness deviation of the substrate glass,
if the deviation value is not greater than the set threshold value of the glass thickness, the thickness of the substrate glass meets the production requirement, and the thickness of the substrate glass is not regulated;
if the deviation value is larger than the set threshold value of the glass thickness, performing the next step;
s3, calculating the traction speed of the traction roller or the thickness air quantity of the air pipe as a correction signal to automatically adjust the thickness of the substrate glass.
Preferably, in the step S1, the step of collecting the thickness of the substrate glass includes:
the substrate glass thickness was measured in real time by laser triangulation and a thickness matrix dataset was formed.
Preferably, the step S2 further comprises forming a thickness deviation matrix data set T according to the thickness deviation of the substrate glass 2 ，
Wherein, the calculation expression of the thickness deviation of the substrate glass is:
δ ij ＝x ij -x 0
in delta ij For thickness deviation of the substrate glass, the length of the substrate glass along the flowing direction is averagely divided into m parts, the length of the substrate glass along the non-flowing direction is averagely divided into n parts and x ij Is the thickness of the substrate glass at the superposition area of the ith part of the substrate glass along the flow direction and the jth part of the substrate glass along the non-flow direction, wherein i=1, 2, …, m, j=1, 2, …, n, x 0 A target thickness is produced for the substrate glass.
Preferably, in the step S2, if the deviation value is greater than the set threshold value of the glass thickness, the method further includes determining a type of non-uniformity of the glass thickness of the substrate:
if thickness deviation matrix data set T 2 Middle delta ij I is all greater than the set threshold or thickness deviation matrix data set T 2 Delta of one or more rows of ij If the values are all larger than the set threshold value, judging that the flow direction and the thickness of the substrate glass are uneven, and calculating the traction speed of the traction roller or the air quantity of the air pipes with all the thicknesses as correction signals to automatically adjust the thickness of the substrate glass;
if thickness deviation matrix data set T 2 Delta of one or more columns ij If the values are all larger than the set threshold value, judging that the non-flow direction thickness of the substrate glass is uneven, and calculating delta of one or more columns ij And taking the thickness air quantity corresponding to the value larger than the set threshold value as a correction signal to automatically adjust the thickness of the substrate glass.
Preferably, the calculating the pulling speed of the pulling roll as the correction signal in S3 includes: the traction speed of the traction roller is fed back to a traction roller driving motor as a correction signal, and the traction roller driving motor is controlled to adjust the traction roller speed according to the correction signal, so that the automatic adjustment of the thickness of the substrate glass is realized;
the calculation expression of the traction speed of the traction roller is as follows:
in the formula, v Traction After the thickness of the substrate glass is adjustedTraction speed of traction roller delta ij V is the thickness deviation of the substrate glass at the superposition area of the ith part of the substrate glass along the flow direction and the jth part of the non-flow direction 0 The traction speed of the traction roller before the thickness adjustment of the substrate glass is adjusted; m is the number of parts of the length of the substrate glass in the flowing direction, n is the number of parts of the length of the substrate glass in the non-flowing direction, wherein i=1, 2, …, m, j=1, 2, …, n, x 0 A target thickness is produced for the substrate glass.
Preferably, the automatic adjustment of the thickness of the substrate glass by using the air volume of the thickness air pipe calculated in the step S3 as the correction signal includes the following adjustment steps:
acquiring a thickness wind response curve;
calculating the thickness air pipe air volume according to the thickness deviation of the substrate glass and the thickness air response curve;
and converting the calculated thickness air pipe air quantity into an electric signal, feeding the electric signal back to the thickness air pipe air cylinder motor as a correction value, and controlling the thickness air pipe air cylinder motor to adjust the thickness air quantity according to the correction value so as to realize automatic adjustment of the thickness of the substrate glass.
Preferably, after the automatic adjustment of the thickness of the substrate glass in S3 is completed, the method further includes:
the thickness of the substrate glass after the adjustment is collected again, the thickness deviation of the substrate glass is calculated and compared with a set threshold value, and whether the thickness of the substrate glass meets the production requirement is judged;
if the thickness of the substrate glass meets the production requirement, finishing adjustment;
and if the thickness of the substrate glass does not meet the production requirement, repeating the steps S1-S3 until the substrate glass meets the production requirement, and finishing adjustment.
An automatic substrate glass thickness adjustment system comprising:
the data acquisition module is used for acquiring the thickness of the substrate glass;
a thickness deviation calculating module for calculating thickness deviation of the substrate glass,
if the deviation value is not greater than the set threshold value of the glass thickness, the thickness of the substrate glass meets the production requirement, and the thickness of the substrate glass is not regulated;
if the deviation value is larger than the set threshold value of the glass thickness, performing the next step;
the automatic adjustment calculation module is used for calculating the traction speed of the traction roller or the thickness air quantity of the thickness air pipe as a correction signal to automatically adjust the thickness of the substrate glass.
Preferably, the thickness deviation calculating module includes a judging unit for judging a type of non-uniformity of the thickness of the substrate glass:
if thickness deviation matrix data set T 2 Middle delta ij I is all greater than the set threshold or thickness deviation matrix data set T 2 Delta of one or more rows of ij If the values are all larger than the set threshold value, judging that the flow direction and the thickness of the substrate glass are uneven, and calculating the traction speed of the traction roller or the air quantity of the air pipes with all the thicknesses as correction signals to automatically adjust the thickness of the substrate glass;
if thickness deviation matrix data set T 2 Delta of one or more columns ij If the values are all larger than the set threshold value, judging that the non-flow direction thickness of the substrate glass is uneven, and calculating delta of one or more columns ij And taking the thickness air quantity corresponding to the value larger than the set threshold value as a correction signal to automatically adjust the thickness of the substrate glass.
Preferably, the automatic adjustment calculation module comprises a data feedback unit, wherein the data feedback unit is used for collecting the thickness of the adjusted substrate glass again, calculating the thickness deviation of the substrate glass, comparing the thickness deviation with a set threshold value, and judging whether the thickness of the substrate glass meets the production requirement;
if the thickness of the substrate glass meets the production requirement, finishing adjustment;
and if the thickness of the substrate glass does not meet the production requirement, repeating the steps S1-S3 until the substrate glass meets the production requirement, and finishing adjustment.
Compared with the prior art, the invention has the following beneficial effects:
the invention provides an automatic substrate glass thickness adjusting method, which comprises the steps of firstly collecting substrate glass thickness data in real time, calculating thickness deviation of the substrate glass, comparing the thickness deviation with a set threshold value in standard production regulation, judging whether the current glass thickness meets production requirements, if not, automatically entering a next adjusting link, calculating the traction speed of a traction roller in a production device, converting the traction speed of the traction roller into an electric signal to serve as a correction signal, feeding the electric signal back to a traction roller driving motor, controlling the traction roller driving motor to adjust the traction speed according to the correction signal obtained by calculation, and further achieving the purpose of adjusting the thickness of the substrate glass in glass production by adjusting and controlling glass thickness parameters, thereby realizing automatic adjustment. The automatic adjusting method can improve the automation degree of the substrate glass production process, improve the production efficiency, reduce errors caused by artificial subjective experience judgment and manual adjustment in the thickness and thickness uniformity parameter adjusting process, and improve the quality of the substrate glass in the production process.
According to the invention, the thickness of glass can be adjusted by taking the calculated traction speed of the traction roller as a correction signal aiming at the type of uneven thickness of the substrate glass in the flow direction in the production process of the substrate glass, and the thickness of the glass can be automatically adjusted by taking the calculated thickness air pipe air volume as a corresponding correction signal when the thickness of the substrate glass in the non-flow direction is uneven, the thickness air pipe air volume is calculated and obtained by utilizing the glass thickness deviation and the thickness air response curve and is fed back to a thickness air pipe cylinder motor to control the air volume of the adjusting air pipe, so that the purpose of adjusting the thickness parameters of the glass to meet the thickness standard of subsequent glass production is realized.
Further, the invention is also provided with a step of automatically adjusting the back parameter feedback inspection, the thickness parameter in the production process of the adjusted substrate glass is acquired again, the corresponding thickness deviation is calculated, the thickness deviation is compared with a standard threshold value, whether the production requirement of the substrate glass is met or not is determined, the adjustment is stopped if the production requirement is met, a subsequent link is entered, and if the production requirement of the substrate glass is not met, the steps are continuously repeated for further thickness adjustment until the thickness meets the production requirement.
Drawings
FIG. 1 is a flow chart of a method for automatically adjusting the thickness of a substrate glass according to the present invention;
FIG. 2 is a block diagram of an automatic substrate glass thickness adjustment system according to the present invention;
FIG. 3 is a schematic diagram of an automatic thickness parameter adjustment flow chart according to an embodiment of the present invention;
FIG. 4 is a schematic view of a substrate glass zoned area according to the present invention;
FIG. 5 is a schematic top view of the thickness duct distribution of the present invention.
In the figure, 1, a substrate glass; 2. a substrate glass zoned region; 3. thickness tuber pipe.
Detailed Description
In order that those skilled in the art will better understand the present invention, a technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in which it is apparent that the described embodiments are only some embodiments of the present invention, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the present invention without making any inventive effort, shall fall within the scope of the present invention.
It should be noted that the terms "first," "second," and the like in the description and the claims of the present invention and the above figures are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged where appropriate such that the embodiments of the invention described herein may be implemented in sequences other than those illustrated or otherwise described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
The invention is described in further detail below with reference to the attached drawing figures:
as shown in FIG. 1, the automatic substrate glass thickness adjusting method comprises the following steps:
s1, collecting the thickness of substrate glass;
s2, calculating thickness deviation of the substrate glass,
if the deviation value is not greater than the set threshold value of the glass thickness, the thickness of the substrate glass meets the production requirement, and the thickness of the substrate glass is not regulated;
if the deviation value is larger than the set threshold value of the glass thickness, performing the next step;
s3, calculating the traction speed of the traction roller or the thickness air quantity of the air pipe as a correction signal to automatically adjust the thickness of the substrate glass.
The invention provides an automatic substrate glass thickness adjusting method, which comprises the steps of firstly collecting substrate glass thickness data in real time, calculating thickness deviation of substrate glass 1, comparing the thickness deviation with a set threshold value in standard production regulation, judging whether the current glass thickness meets production requirements, if not, automatically entering a next adjusting link, calculating traction speed of a traction roller or thickness air volume of an air pipe in a production device, converting the traction speed of the traction roller or the thickness air volume of the air pipe into an electric signal to serve as a correction signal to be fed back to a traction roller driving motor or a thickness air pipe air cylinder motor, controlling the traction roller driving motor to adjust the traction speed or the thickness air volume of the air pipe air cylinder motor according to the calculated correction signal, and adjusting and controlling glass thickness parameters to further achieve the purpose of adjusting the thickness of the substrate glass in glass production, thereby realizing automatic adjustment. The automatic adjusting method can improve the automation degree of the production process of the substrate glass 1, improve the production efficiency, reduce errors caused by artificial subjective experience judgment and manual adjustment in the thickness and thickness uniformity parameter adjusting process, and improve the quality of the substrate glass 1 in the production process.
Examples
As shown in fig. 3, the specific implementation steps of the automatic thickness adjustment method for substrate glass production according to the present invention will be described in further detail.
An automatic thickness adjusting method for high-generation substrate glass production comprises the following steps:
step one, real-time laser triangulation methodMeasuring substrate glass thickness x ij (i=1, 2, …, m, j=1, 2, …, n) and forming a thickness matrix data set T 1 :
Wherein, as shown in fig. 4 and 5, the substrate glass 1 is divided into a substrate glass partition area 2 according to the glass flowing direction and the non-flowing direction, m is the number of parts of the substrate glass 1 which are equally divided along the length of the flowing direction, n is the number of parts of the substrate glass 1 which are equally divided along the length of the non-flowing direction, and x ij (i=1, 2, …, m, j=1, 2, …, n) is the thickness of the substrate glass 1 in the overlapping region of the ith part of the substrate glass in the flow direction and the jth part of the substrate glass in the non-flow direction;
step two, calculating the thickness deviation delta of the substrate glass ij And form a thickness deviation matrix data set T 2 :
Thickness deviation matrix data set T 2 In (a): delta ij ＝x ij -x 0 ；
Wherein delta ij Thickness deviation x of the substrate glass 1 in the overlap region of the ith part of the substrate glass along the flow direction and the jth part of the non-flow direction ij (i=1, 2, …, m, j=1, 2, …, n) is the thickness of the substrate glass 1 in the overlap region of the ith part of the substrate glass in the flow direction and the jth part of the substrate glass in the non-flow direction, x 0 Producing a target thickness for the substrate glass;
setting a threshold delta Threshold value If |delta ij I is less than or equal to a threshold delta Threshold value The thickness of the substrate glass meets the production requirement, the thickness of the substrate glass is not adjusted, and the step one is returned; on the contrary, if delta ij All greater than threshold delta Threshold value Or i=q (q=1, 2, …, n), δ qj (j=1, 2, …, m), i.e. if the thickness deviation matrix dataset T 2 Middle delta ij All big IAt a set threshold or thickness deviation matrix data set T 2 Delta of one or more rows of ij The values are all larger than the threshold delta Threshold value If the flow direction of the substrate glass 1 is judged to be uneven, the traction speed of the traction roller is calculated in the third step for automatic adjustment, or the air quantity of the air pipes with all thicknesses can be calculated in the fourth step for automatic adjustment, otherwise, if the thickness deviation matrix data set T is adopted 2 Delta of one or more columns ij If the values are all larger than the set threshold value, judging that the non-flow direction thickness of the substrate glass 1 is uneven, and directly performing automatic adjustment on the local thickness air duct air volume calculated in the fourth step, wherein the local thickness air duct air volume refers to the thickness deviation delta of the substrate glass in a certain row or a plurality of rows ij The air quantity of the thickness air pipe with the value larger than the set threshold value can be adjusted more accurately by the adjusting method designed by the invention;
step three, calculating the traction speed v of the traction roller Traction ：
Wherein: v Traction Traction speed delta of traction roller after adjusting thickness of substrate glass ij Thickness deviation v of the substrate glass 1 in the overlap region of the ith part of the substrate glass in the flow direction and the jth part of the substrate glass in the non-flow direction 0 To adjust the speed of the front traction roller; m is the number of parts of the length of the substrate glass 1 in the flowing direction, and n is the number of parts of the length of the substrate glass 1 in the non-flowing direction;
the calculated traction speed v of the traction roller Traction The electric signal is converted into an electric signal and is used as a correction value to be fed back to a traction roller driving motor, and the speed of the traction roller is regulated in real time through a PLC (programmable logic controller), so that the automatic regulation of the thickness in the production process of the substrate glass 1 is realized;
step four, taking j=p (p=1, 2, …, n), δ ip (i=1, 2, …, m), i.e. if the thickness deviation matrix dataset T 2 Delta of one or more columns ij The values are all larger than the threshold delta Threshold value Judging that the non-flow direction is not thickThe uniform type is that the thickness air pipe air quantity Q is calculated according to the deviation thickness and thickness air response curve:
wherein Q is the thickness air quantity delta of the air pipe ip (i=1, 2, …, m) is the non-flow direction p (i=1, 2, …, n) region thickness offset value, a q ，A q-1 ，…，A，A 0 The thickness and thickness wind response curve parameters are deviation;
converting the calculated thickness air volume Q of the thickness air pipe into an electric signal as a correction value and feeding the electric signal back to a motor of a cylinder of the thickness air pipe 3, and adjusting the thickness air volume in real time through a PLC (programmable logic controller), so as to realize automatic adjustment of the thickness in the production process of the substrate glass 1;
according to the invention, when the thickness of the substrate glass 1 is uneven along the flow direction in the production process of the substrate glass, the thickness of the glass can be adjusted by taking the calculated traction speed of the traction roller as a correction signal, and when the thickness of the substrate glass 1 is uneven along the non-flow direction in the production process of the substrate glass, the thickness of the glass can be automatically adjusted by taking the calculated thickness air pipe air quantity as a corresponding correction signal, the thickness air pipe air quantity is calculated and obtained by utilizing the glass thickness deviation and the thickness air response curve, and is fed back to a thickness air pipe 3 cylinder motor to control the air pipe air quantity, so that the purpose of adjusting the glass thickness parameter to meet the thickness standard of subsequent glass production is achieved.
Step five, returning to the step one, re-collecting the thickness data set after the thickness parameter adjustment in the production process of the substrate glass 1, and calculating the thickness deviation delta of the substrate glass ij Judging whether the thickness parameter of the substrate glass meets the requirement,
if the thickness of the substrate glass meets the production requirement, finishing adjustment;
and if the thickness of the substrate glass does not meet the production requirement, repeating the operation of the steps until the substrate glass meets the production requirement, and finishing adjustment.
The invention is also provided with a step of automatically adjusting the back parameter feedback inspection, the thickness parameter in the production process of the substrate glass 1 after adjustment is collected again, the corresponding thickness deviation is calculated, the comparison is carried out with a standard threshold value, whether the production requirement of the substrate glass 1 is met is determined, the adjustment is stopped if the production requirement is met, a subsequent link is entered, and if the production requirement of the substrate glass 1 is not met, the steps are continuously repeated for further thickness adjustment until the thickness meets the production requirement.
The invention also provides an automatic adjusting system for the thickness of the substrate glass, which is used for realizing the automatic adjusting method of the invention, as shown in figure 2, and comprises the following steps:
the data acquisition module is used for acquiring the thickness of the substrate glass;
a thickness deviation calculating module for calculating thickness deviation of the substrate glass,
if the deviation value is not greater than the set threshold value of the glass thickness, the thickness of the substrate glass meets the production requirement, and the thickness of the substrate glass is not regulated;
if the deviation value is larger than the set threshold value of the glass thickness, performing the next step;
the automatic adjustment calculation module is used for calculating the traction speed of the traction roller or the thickness air quantity of the thickness air pipe as a correction signal to automatically adjust the thickness of the substrate glass.
Further, the thickness deviation calculating module includes a judging unit for judging a type of non-uniformity of the thickness of the substrate glass:
if thickness deviation matrix data set T 2 Middle delta ij I is all greater than the set threshold or thickness deviation matrix data set T 2 Delta of one or more rows of ij If the values are all larger than the set threshold value, judging that the flow direction and the thickness of the substrate glass are uneven, and calculating the traction speed of the traction roller or the air quantity of the air pipes with all the thicknesses as correction signals to automatically adjust the thickness of the substrate glass;
if thickness deviation matrix data set T 2 Delta of one or more columns ij If the values are all larger than the set threshold value, judging that the non-flow direction thickness of the substrate glass is uneven, and calculating delta of one or more columns ij The thickness air pipe air volume corresponding to the value larger than the set threshold value is taken as a correction signal to the substrateThe thickness of the glass is automatically adjusted.
Further, the automatic adjustment calculation module further comprises a data calculation unit for calculating the air volume of the thickness air pipe.
Further, the automatic adjusting and calculating module is further used for converting the calculated air quantity of the thickness air pipe into an electric signal and transmitting the electric signal to the thickness air pipe cylinder motor, and real-time adjustment of the thickness air pipe is completed through the PLC, so that automatic adjustment of the thickness in the production process of the substrate glass 1 is realized.
Further, the automatic adjustment calculation module further comprises a data feedback unit for collecting the thickness data of the glass after the thickness parameter is adjusted in the production process of the substrate glass 1, calculating the thickness deviation δij of the substrate glass, and judging whether the thickness parameter of the substrate glass meets the requirement.
Wherein, the invention divides each piece of substrate glass 1 into m and n fractions according to the flow direction and the non-flow direction.
The thickness of the substrate glass is measured in real time by a laser triangulation method.
Wherein, the invention collects the thickness data of each piece of substrate glass in real time and forms a thickness matrix data set.
Wherein, the invention calculates the thickness deviation of the substrate glass and forms a thickness deviation matrix data set.
The invention judges the types of uneven thickness of the flow direction and the non-flow direction in the production process of the substrate glass 1 according to the comparison of the thickness deviation of the substrate glass and the set threshold value.
If the flow direction thickness of the substrate glass 1 is uneven in the production process, calculating the speed of the traction roller according to the average value of thickness deviation, converting the speed value into an electric signal, feeding the electric signal back to the traction roller driving motor, and adjusting the speed of the traction roller in real time through a PLC (programmable logic controller), so that the automatic adjustment of the thickness of the substrate glass 1 in the production process is realized;
if the production process of the substrate glass 1 is non-flowing direction thickness non-uniformity, the air quantity of the thickness air pipe is calculated according to the deviation thickness and the thickness air response curve, the air quantity is converted into an electric signal and fed back to the traction roller driving motor, and the thickness air quantity is regulated in real time through the PLC, so that the automatic regulation of the thickness in the production process of the substrate glass 1 is realized.
Wherein, the thickness air pipes are distributed on two sides of the substrate glass 1, and the number of the air pipes with single side thickness is the same as the number of non-flow direction equal parts.
Finally, it should be noted that: the above embodiments are only for illustrating the technical aspects of the present invention and not for limiting the same, and although the present invention has been described in detail with reference to the above embodiments, it should be understood by those of ordinary skill in the art that: modifications and equivalents may be made to the specific embodiments of the invention without departing from the spirit and scope of the invention, which is intended to be covered by the claims.
Claims (5)
1. The automatic substrate glass thickness adjusting method is characterized by comprising the following steps of:
s1, collecting the thickness of substrate glass;
s2, calculating thickness deviation of the substrate glass,
if the deviation value is not greater than the set threshold value of the glass thickness, the thickness of the substrate glass meets the production requirement, and the thickness of the substrate glass is not regulated;
if the deviation value is larger than the set threshold value of the glass thickness, performing the next step;
s3, calculating the traction speed of the traction roller or the thickness air quantity of the air pipe as a correction signal to automatically adjust the thickness of the substrate glass;
the S2 also comprises the step of forming a thickness deviation matrix data set T according to the thickness deviation of the substrate glass 2 ，
；
Wherein, the calculation expression of the thickness deviation of the substrate glass is:
ij =/>
in the method, in the process of the invention, ij for thickness deviation of the substrate glass, the length of the substrate glass along the flowing direction is divided into m parts, the length of the substrate glass along the non-flowing direction is divided into n parts, and the length of the substrate glass along the non-flowing direction is divided into +.>Is the thickness of the substrate glass at the superposition area of the ith part of the substrate glass along the flow direction and the jth part of the substrate glass along the non-flow direction, wherein i=1, 2, …, m, j=1, 2, …, n, ">Producing a target thickness for the substrate glass;
in the step S2, if the deviation value is greater than the set threshold value of the glass thickness, determining the type of non-uniform thickness of the substrate glass is further included:
if thickness deviation matrix data set T 2 In (a) ij I is all greater than the set threshold or thickness deviation matrix data set T 2 Is +.> ij If the values are all larger than the set threshold value, judging that the flow direction and the thickness of the substrate glass are uneven, and calculating the traction speed of the traction roller or the air quantity of the air pipes with all the thicknesses as correction signals to automatically adjust the thickness of the substrate glass;
if thickness deviation matrix data set T 2 One or more of the columns ij If the values are all larger than the set threshold value, judging that the non-flow direction thickness of the substrate glass is uneven, calculating a certain row or a plurality of rows of +.> ij The thickness air quantity of the air pipe with the value larger than the set threshold value is used as a correction signal to automatically adjust the thickness of the substrate glass;
the step S3 of calculating the traction speed of the traction roller as a correction signal to automatically adjust the thickness of the substrate glass comprises the following steps: the traction speed of the traction roller is fed back to a traction roller driving motor as a correction signal, and the traction roller driving motor is controlled to adjust the traction roller speed according to the correction signal, so that the automatic adjustment of the thickness of the substrate glass is realized;
the calculation expression of the traction speed of the traction roller is as follows:
v traction = ；
In the formula, v Traction Traction speed delta of traction roller after adjusting thickness of substrate glass ij V is the thickness deviation of the substrate glass at the superposition area of the ith part of the substrate glass along the flow direction and the jth part of the non-flow direction 0 The traction speed of the traction roller before the thickness adjustment of the substrate glass is adjusted; m is the number of parts of the length of the substrate glass which is averagely divided along the flow direction, n is the number of parts of the length of the substrate glass which is averagely divided along the non-flow direction, wherein i=1, 2, …, m, j=1, 2, …, n,producing a target thickness for the substrate glass;
and the automatic adjustment of the thickness of the substrate glass by taking the calculated thickness air volume of the air duct as a correction signal in the step S3 comprises the following adjustment steps:
acquiring a thickness wind response curve;
calculating the thickness air pipe air volume according to the thickness deviation of the substrate glass and the thickness air response curve;
and converting the calculated thickness air pipe air quantity into an electric signal, feeding the electric signal back to the thickness air pipe air cylinder motor as a correction value, and controlling the thickness air pipe air cylinder motor to adjust the thickness air quantity according to the correction value so as to realize automatic adjustment of the thickness of the substrate glass.
2. The method for automatically adjusting the thickness of the substrate glass according to claim 1, wherein in S1, collecting the thickness of the substrate glass comprises:
the substrate glass thickness was measured in real time by laser triangulation and a thickness matrix dataset was formed.
3. The method for automatically adjusting the thickness of the substrate glass according to claim 1, wherein after the automatic adjustment of the thickness of the substrate glass in S3 is completed, further comprising:
the thickness of the substrate glass after the adjustment is collected again, the thickness deviation of the substrate glass is calculated and compared with a set threshold value, and whether the thickness of the substrate glass meets the production requirement is judged;
if the thickness of the substrate glass meets the production requirement, finishing adjustment;
and if the thickness of the substrate glass does not meet the production requirement, repeating the steps S1-S3 until the substrate glass meets the production requirement, and finishing adjustment.
4. A substrate glass thickness automatic adjustment system, characterized by comprising, based on the automatic adjustment method according to any one of claims 1 to 3:
the data acquisition module is used for acquiring the thickness of the substrate glass;
a thickness deviation calculating module for calculating thickness deviation of the substrate glass,
if the deviation value is not greater than the set threshold value of the glass thickness, the thickness of the substrate glass meets the production requirement, and the thickness of the substrate glass is not regulated;
if the deviation value is larger than the set threshold value of the glass thickness, performing the next step;
the automatic adjustment calculation module is used for calculating the traction speed of the traction roller or the thickness air quantity of the air pipe as a correction signal to automatically adjust the thickness of the substrate glass;
the thickness deviation calculation module comprises a judgment unit, wherein the judgment unit is used for judging the type of uneven thickness of the substrate glass:
if thickness deviation matrix data set T 2 In (a) ij I is all greater than the set threshold or thickness deviation matrix data set T 2 Is +.> ij If the values are all larger than the set threshold value, judging that the flow direction and the thickness of the substrate glass are uneven, and calculating the traction speed of the traction roller or the air quantity of the air pipes with all the thicknesses as correction signals to automatically adjust the thickness of the substrate glass;
if thickness deviation matrix data set T 2 One or more of the columns ij If the values are all larger than the set threshold value, judging that the non-flow direction thickness of the substrate glass is uneven, calculating a certain row or a plurality of rows of +.> ij And taking the thickness air quantity corresponding to the value larger than the set threshold value as a correction signal to automatically adjust the thickness of the substrate glass.
5. The automatic substrate glass thickness adjusting system according to claim 4, wherein the automatic adjustment calculating module comprises a data feedback unit, wherein the data feedback unit is used for collecting the adjusted substrate glass thickness again, calculating the substrate glass thickness deviation and comparing the substrate glass thickness deviation with a set threshold value, and judging whether the substrate glass thickness meets the production requirement or not;
if the thickness of the substrate glass meets the production requirement, finishing adjustment;
and if the thickness of the substrate glass does not meet the production requirement, repeating the steps S1-S3 until the substrate glass meets the production requirement, and finishing adjustment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210327202.1A CN114634294B (en) | 2022-03-30 | 2022-03-30 | Automatic substrate glass thickness adjusting method and system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210327202.1A CN114634294B (en) | 2022-03-30 | 2022-03-30 | Automatic substrate glass thickness adjusting method and system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114634294A CN114634294A (en) | 2022-06-17 |
| CN114634294B true CN114634294B (en) | 2023-12-12 |
Family
ID=81951455
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210327202.1A Active CN114634294B (en) | 2022-03-30 | 2022-03-30 | Automatic substrate glass thickness adjusting method and system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114634294B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115108711A (en) * | 2022-06-28 | 2022-09-27 | 河南旭创光电新材料有限公司 | Method and device for automatically controlling glass thickness |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105837008A (en) * | 2016-06-01 | 2016-08-10 | 东旭科技集团有限公司 | Overflow process glass production line and automatic control system and method thereof |
| CN113045184A (en) * | 2021-01-29 | 2021-06-29 | 彩虹显示器件股份有限公司 | Method for precisely adjusting manufacturing thickness of glass substrate |
-
2022
- 2022-03-30 CN CN202210327202.1A patent/CN114634294B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105837008A (en) * | 2016-06-01 | 2016-08-10 | 东旭科技集团有限公司 | Overflow process glass production line and automatic control system and method thereof |
| CN113045184A (en) * | 2021-01-29 | 2021-06-29 | 彩虹显示器件股份有限公司 | Method for precisely adjusting manufacturing thickness of glass substrate |
Also Published As
| Publication number | Publication date |
|---|---|
| CN114634294A (en) | 2022-06-17 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101992218B (en) | Correction method for cold-rolled strip steel plate shape control target value | |
| CN102343365B (en) | Method and system for automatic thickness control over high-precision strip steel rolling under monitoring | |
| CN114634294B (en) | Automatic substrate glass thickness adjusting method and system | |
| CN106475420A (en) | A kind of board-shape control method being set based on cold-strip steel target flatness | |
| CN104785543B (en) | A kind of hot-strip crown feedback control method based on moving average filter | |
| CN110773573B (en) | Plate-shaped regulation and control efficiency coefficient actual measurement data processing method | |
| CN103464471A (en) | Automatic gauge control (AGC) self-adaptive control method for hot rolling mill | |
| CN113812658B (en) | Loose moisture regain and water adding control method based on neural network model and double parameter correction | |
| CN109189112B (en) | Tension roller strip steel tension slip form control method and control device | |
| CN110064667A (en) | Laminar cooling method for steel plate | |
| CN102601124B (en) | Method for controlling bottom width full-length fluctuation of steel rail | |
| CN110607435A (en) | Annealing furnace plate temperature control system and method | |
| CN105170705B (en) | A kind of automatic import levelling machine and its flattening method | |
| CN113649420A (en) | Temper mill rolling force obtaining method and device | |
| CN108546897B (en) | Method for controlling uniformity of transverse coating of cold-rolled hot-dip galvanized steel plate | |
| CN115007656B (en) | Setting method of normalized plate-shaped target curve | |
| CN107520255B (en) | A kind of self-learning type inlet of rolling mill thickness optimization method | |
| CN113743038B (en) | Wet film thickness regulating and controlling method | |
| CN105568197A (en) | Method for accurately controlling weight of continuously-hot-galvanized zinc layer | |
| CN110770357A (en) | Method for operating annealing furnace | |
| US20050211108A1 (en) | Method and device for automatically regulating a quantity of product deposited | |
| WO1991015312A1 (en) | Method and apparatus for rolling control | |
| CN113198996B (en) | Secondary cooling water amount configuration method based on continuous casting billet surface temperature return control | |
| CN117696635A (en) | Control method and system for reducing sizing mill rolling | |
| CN1753735A (en) | Method for regulating the temperature of a metal strip, especially in a cooling path |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |