CN115010358A - Online cutting method for glass sheet - Google Patents
Online cutting method for glass sheet Download PDFInfo
- Publication number
- CN115010358A CN115010358A CN202210698279.XA CN202210698279A CN115010358A CN 115010358 A CN115010358 A CN 115010358A CN 202210698279 A CN202210698279 A CN 202210698279A CN 115010358 A CN115010358 A CN 115010358A
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- China
- Prior art keywords
- glass
- sheet
- defects
- glass sheet
- cutting
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- 239000011521 glass Substances 0.000 title claims abstract description 164
- 238000005520 cutting process Methods 0.000 title claims abstract description 63
- 238000000034 method Methods 0.000 title claims abstract description 30
- 230000007547 defect Effects 0.000 claims abstract description 78
- 238000004519 manufacturing process Methods 0.000 abstract description 23
- 239000002699 waste material Substances 0.000 abstract description 6
- 230000002950 deficient Effects 0.000 description 14
- 230000000052 comparative effect Effects 0.000 description 2
- 238000010924 continuous production Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 229910003460 diamond Inorganic materials 0.000 description 1
- 239000010432 diamond Substances 0.000 description 1
- 238000003698 laser cutting Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000004017 vitrification Methods 0.000 description 1
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Classifications
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B33/00—Severing cooled glass
- C03B33/02—Cutting or splitting sheet glass or ribbons; Apparatus or machines therefor
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- 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
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Re-Forming, After-Treatment, Cutting And Transporting Of Glass Products (AREA)
Abstract
The invention belongs to the technical field of glass manufacturing, and particularly relates to an online cutting method of a glass original sheet, which comprises the following steps: (1) acquiring size data of a target glass sheet, and processing the size data; (2) reading the defects of the glass original sheet, identifying the area size of the target glass sheet where the defects are located, and processing the obtained defect data; (3) and (3) calculating a cutting scheme: (a) when the length of the area size of the target glass sheet in the drawing direction of the glass original sheet is less than 1/2 of the target glass sheet in the drawing direction of the glass original sheet, directly cutting the glass after the defect, and abandoning the glass at the defect; (b) when the length of the area size of the target glass sheet concentrated on the defects in the drawing direction of the glass original sheet is greater than or equal to 1/2 of the target glass sheet in the drawing direction of the glass original sheet, the cutting is carried out on line by selecting direct cutting or non-cutting treatment after the defects. The cutting method improves the production rate of the production line, saves resources and avoids waste.
Description
Technical Field
The invention belongs to the technical field of glass manufacturing, and particularly relates to an online cutting method for a glass original sheet.
Background
Along with the popularization of photovoltaic module double-vitrification, more and more enterprises invest in glass original sheet production lines, and along with the operation of the production lines, some problems are gradually exposed. Because the glass original sheet has some inevitable defects in the production process, the glass original sheet falls into a defective product due to the defects after being cut and divided according to the product specification in the later process. And the traditional production line cuts the glass with the same specification, the whole glass with the specification can be judged to be bad if the glass has defects, and the current mode of judging the defects and then judging the whole glass to be the defective glass greatly increases the area of the defective glass, reduces the production rate of the production line and wastes resources.
In view of this, the invention particularly provides a more optimized method for the on-line cutting of glass original sheets, which improves the production rate of a production line, saves resources and avoids waste.
Disclosure of Invention
Aiming at the defects of low productivity, resource waste caused by overlarge rejected glass area and the like of the traditional glass cutting method in the prior art, the invention provides the method for cutting the glass original sheet on line.
The invention is realized by the following technical scheme:
the invention provides an on-line cutting method of a glass sheet, which comprises the following steps:
(1) acquiring size data of a target glass sheet, and processing the size data;
(2) reading the defects of the glass original sheet, identifying the size of the area of the target glass sheet where the defects are located, and processing the obtained defect data;
(3) calculating a cutting scheme, and cutting on line;
the method comprises the steps of obtaining size data of a target glass sheet and defect data of an original glass sheet by adopting a conventional method in the field, wherein the size data of the target glass sheet comprises size, thickness and the like, and the defect data comprises defect size, shape, position of a defect on the original glass sheet and the like; the cutting is performed by conventional cutting means such as diamond or laser cutting.
The cutting scheme is as follows:
(a) when the defects in the step (2) are concentrated on the target glass sheet area, the length of the target glass sheet area in the glass original sheet traction direction is less than one half of the length of the target glass sheet in the glass original sheet traction direction, direct cutting is carried out after the defects, and glass at the positions of the defects is abandoned;
(b) and (3) when the defects in the step (2) are concentrated on the target glass sheet area, and the length of the target glass sheet area in the glass original sheet drawing direction is more than or equal to one half of the length of the target glass sheet in the glass original sheet drawing direction, directly cutting or not cutting after the defects.
Further, in the step (b), when the defects are concentrated on the two sides of the target glass sheet in the step (2), directly cutting after the defects and abandoning the glass at the defects; and (3) when the defects in the step (2) are concentrated on one side of the target glass sheet, selecting glass at the position where the defects are not cut, and normally cutting according to the size of the target glass sheet.
Preferably, the target glass sheet is a glass strip perpendicular to the drawing direction of the original glass sheet, the target glass sheet is cut into one or more glass plates, and the target glass sheet can be selectively cut into one, two, four, eight or ten pieces according to requirements.
Preferably, the glass plate is square or rectangular.
Compared with the prior art, the invention has the beneficial effects that:
(1) according to the invention, the size and the position of the defect on the original glass sheet are firstly obtained, the defect area can be accurately cut according to the size of the defect area and based on the size data of the target glass, and the defect is abandoned in advance to distinguish the glass, so that the area of defective glass is reduced, the production rate of a production line is improved, excessive waste is avoided, and resources are saved.
(2) The cutting method is an online continuous cutting method, the target glass sheet produced by the method is glass with one specification, and compared with the prior art that the cutting of defective glass and the cutting into glass with different plate sizes can be finished only by combining a main production line and an auxiliary production line, the cutting method is simple and convenient, and can be directly used for producing the target glass sheet on the production line.
Drawings
FIG. 1 is a schematic view of cutting a glass original sheet according to example 1;
FIG. 2 is a schematic view of cutting a glass original sheet according to example 2;
FIG. 3 is a schematic view of example 3 for cutting a glass original sheet;
FIG. 4 is a schematic view of cutting a glass original sheet according to example 4;
in FIGS. 1-4, where a is the area of the target glass sheet, b is the area of the defect, c is the slicing line, and d is the centerline of the target glass sheet.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the invention, its application, or uses. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example 1
As shown in fig. 1, the present embodiment provides an on-line cutting method for a glass original sheet, which specifically includes the following steps:
(1) acquiring size data of a target glass sheet, namely an area a in figure 1, and processing;
(2) reading the defects of the original glass sheet, identifying the size of the area of the target glass sheet where the defects are located, namely the area b in the figure 1, and processing the obtained defect data;
(3) and (3) calculating a cutting scheme: and (3) if the length of the area size of the target glass sheet in the drawing direction of the original glass sheet is one third of the length of the target glass sheet in the drawing direction of the original glass sheet, directly cutting the glass at the cutting line d after the defect, namely directly cutting and abandoning the glass at the defect (area b), so that the area of defective glass is the minimum, and then continuously carrying out online cutting according to the size of the normal target glass sheet.
Example 2
As shown in fig. 2, the present embodiment provides an on-line cutting method for a glass original sheet, which specifically includes the following steps:
(1) acquiring size data of a target glass sheet, namely an area a shown in figure 2, averagely dividing the area a of the target glass sheet into two parts by a central line c, and processing the size data of the target glass sheet;
(2) reading the defects of the original glass sheet, identifying the size of the area of the target glass sheet where the defects are located, namely the area b in FIG. 2, and processing the obtained defect data;
(3) and (3) calculating a cutting scheme: the length of the area size of the target glass sheet in the glass original sheet drawing direction is larger than one half of the length of the target glass sheet in the glass original sheet drawing direction, the defects are concentrated in the areas on two sides of the target glass sheet (namely the defects are distributed on two sides of the central line c), and then the cutting line d after the defects is selected to directly cut, namely the glass (area b) at the positions where the defects are removed is directly cut, so that the area of defective glass is the minimum, and then the on-line cutting is continuously carried out according to the size of the normal target glass sheet.
Example 3
As shown in fig. 3, the present embodiment provides an on-line cutting method for a glass original sheet, which specifically includes the following steps:
(1) acquiring size data of a target glass sheet, namely an area a in figure 3, and processing;
(2) reading the defects of the original glass sheet, identifying the size of the area of the target glass sheet where the defects are located, namely the area b in the figure 3, and processing the obtained defect data;
(3) and (3) calculating a cutting scheme: if the length of the area size of the target glass sheet in the drawing direction of the glass original sheet is larger than one half of the length of the target glass sheet in the drawing direction of the glass original sheet, and the defects are only concentrated in a single-side area of the target glass sheet (namely the defects are distributed on one side of the center line c), the defect area is not cut, and the on-line cutting is carried out according to the normal size of the target glass sheet. The yield of the target glass sheet is kept at least 50%, the scrapping of defective products of the whole glass sheet is avoided, and the defective rate is reduced.
Example 4
As shown in fig. 4, the present embodiment provides an on-line cutting method for a glass original sheet, which specifically includes the following steps:
(1) acquiring size data of a target glass sheet, namely an area a in figure 4, and processing the size data;
(2) reading the defects of the original glass sheet, identifying the size of the area of the target glass sheet where the defects are located, namely the area b in FIG. 4, and processing the obtained defect data;
(3) and (3) calculating a cutting scheme: if the length of the area size of the target glass sheet in the drawing direction of the glass original sheet is equal to the length of the target glass sheet in the drawing direction of the glass original sheet, and the defects are only concentrated in a single-side area of the target glass sheet (namely the defects are distributed on one side of the center line c), the defect area is selected not to be cut off, and the on-line cutting is carried out according to the normal size of the target glass sheet. The yield of the target glass sheet is kept at least 50%, the scrapping of defective products of the whole glass sheet is avoided, and the defective rate is reduced.
Comparative example 1
As shown in fig. 1, the present embodiment provides an on-line cutting method for a glass original sheet, which specifically includes the following steps:
(1) acquiring size data of a target glass sheet, and processing the size data;
(2) and reading the defects of the original glass sheet, finding the defects, namely defining the target glass sheet in the area where the defects are positioned as a defective product, and discarding the defective product after cutting.
By adopting the online cutting method for the glass sheet, the defects are cut in the way of the embodiment 1-4 respectively and correspondingly according to the identified defect data in the continuous production process, and the statistical production yield of the continuous production within 12 hours is 90.7 percent; whereas the production yield obtained with the cutting method of comparative example 1 was only 85%.
The method for calculating the production yield comprises the following steps: the weight of finished glass/the weight of raw materials put into the kiln.
Therefore, the online cutting method for the glass original sheet can accurately cut the defect area, abandons the defects in advance and distinguishes the glass, thereby reducing the area of defective glass, improving the production yield of a production line, improving the production yield by about 5 percent compared with the traditional cutting method in the prior art, avoiding excessive waste and saving resources.
The above-mentioned embodiments are intended to illustrate the objects, technical solutions and advantages of the present invention in further detail, and it should be understood that the above-mentioned embodiments are only exemplary embodiments of the present invention, and are not intended to limit the present invention, and any modifications, equivalents, improvements and the like made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (4)
1. The method for cutting the glass sheet on line is characterized by comprising the following steps:
(1) acquiring size data of a target glass sheet, and processing the size data;
(2) reading the defects of the glass original sheet, identifying the size of the area of the target glass sheet where the defects are located, and processing the obtained defect data;
(3) calculating a cutting scheme, and cutting on line;
the cutting scheme is as follows:
(a) when the defects in the step (2) are concentrated on the target glass sheet area, the length of the target glass sheet area in the glass original sheet traction direction is less than one half of the length of the target glass sheet in the glass original sheet traction direction, direct cutting is carried out after the defects, and glass at the positions of the defects is abandoned;
(b) and (3) when the defects in the step (2) are concentrated on the target glass sheet area, and the length of the target glass sheet area in the glass original sheet drawing direction is more than or equal to one half of the length of the target glass sheet in the glass original sheet drawing direction, directly cutting or not cutting after the defects.
2. The method according to claim 1, wherein in step (b), when the defects in step (2) are concentrated on both sides of the target glass sheet, the glass is cut directly after the defects and the glass at the defects is discarded; and (3) when the defects in the step (2) are concentrated on one side of the target glass sheet, selecting glass at the position where the defects are not cut, and normally cutting according to the size of the target glass sheet.
3. The method of claim 1, wherein the target glass sheet is a glass ribbon perpendicular to a direction of pulling of the glass sheet, and the target glass sheet is slit to form one or more glass sheets.
4. The method of claim 3, wherein the glass sheet is square or rectangular.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210698279.XA CN115010358A (en) | 2022-06-20 | 2022-06-20 | Online cutting method for glass sheet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210698279.XA CN115010358A (en) | 2022-06-20 | 2022-06-20 | Online cutting method for glass sheet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115010358A true CN115010358A (en) | 2022-09-06 |
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ID=83076403
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210698279.XA Pending CN115010358A (en) | 2022-06-20 | 2022-06-20 | Online cutting method for glass sheet |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115010358A (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI228767B (en) * | 2004-02-02 | 2005-03-01 | Chi Mei Optoelectronics Corp | Smart cut of mother glass |
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2022
- 2022-06-20 CN CN202210698279.XA patent/CN115010358A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI228767B (en) * | 2004-02-02 | 2005-03-01 | Chi Mei Optoelectronics Corp | Smart cut of mother glass |
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Application publication date: 20220906 |