Glass sheet production method and production system

Abstract

The invention discloses a glass sheet production method and system, and the method comprises the steps: firstly carrying out the defect detection of a glass tape, obtaining the position information of each defect, then carving a tangent frame on the glass tape, and obtaining a to-be-separated preliminarily cut glass sheet; further performing simulated typesetting on the preliminarily cut glass sheets to be separated to obtain virtual frames corresponding to the deeply cut glass sheets, and marking in the defective virtual frames according to the position information of the defects after the preliminarily cut glass sheets are obtained through separation; and finally, cutting to obtain a deeply-cut glass sheet, and scrapping the deeply-cut glass sheet with the mark. In the subsequent deep processing treatment, the preliminarily cut glass sheet is cut into the deeply cut glass sheet, and only the poor deeply cut glass sheet with the laser etching mark needs to be scrapped, instead of the single scrapping of the whole preliminarily cut glass sheet, so that the production method can reduce the loss rate caused by glass defects, and the production cost is reduced. The glass utilization rate and the final production qualification rate are improved.

Description

Technical Field

[0001] The invention belongs to the technical field of glass processing, and in particular relates to a glass sheet production method and a production system. Background Art

[0002] The production of glass sheets mainly includes three steps. The first is glass manufacturing. The raw materials are melted at high temperature, formed, annealed and cooled, and then formed into a continuous glass strip at the cold end section. The second is processing into sheets. The glass strip is transported and broken and cut online to obtain glass sheets. The third is factory inspection. Since the glass will inevitably produce defects such as bubbles, stones and cracks that affect the quality of the glass during the manufacturing process, in order to avoid poor quality glass sheets from flowing into the client, the glass sheets need to be defectively inspected before leaving the factory to remove poor quality glass sheets.

[0003] At present, there are generally two ways to perform defect detection on glass pieces before leaving the factory. One is to directly perform defect detection on the larger preliminary cut glass pieces obtained by breaking them, and scrap the preliminary cut glass pieces with defects. Although the detection speed is fast, there is a serious waste of resources and it will affect the pass rate. The other is to further cut the preliminary cut glass pieces into smaller deep cut glass pieces, and then perform defect detection on the deep cut glass pieces, and scrap the deep cut glass pieces with defects. Although it can reduce resource waste and improve the pass rate, the number of preliminary cut glass pieces cut into deep cut glass pieces increases, and it is time-consuming and labor-intensive to detect them one by one, which will affect the delivery speed.

[0004] Therefore, it is necessary to design a glass sheet production method and system for the breaking, cutting and testing production processes that can reduce resource waste and ensure delivery speed, thereby improving the production efficiency and pass rate of glass sheets. Summary of the invention

[0005] In view of the above-mentioned deficiencies in the prior art, the purpose of the present invention is to provide a glass sheet production method and production system to solve the technical problems of serious resource waste or slow delivery in the current glass sheet production method, thereby achieving the effect of improving the production efficiency and qualified rate of glass sheets.

[0006] In order to solve the above technical problems, the present invention adopts the following technical solutions: A method for producing glass sheets, wherein the following steps are performed in sequence during the conveying process of a glass ribbon; 1) Perform defect detection on the glass ribbon to obtain defect information, including position information; 2) Score a cutting frame on the glass ribbon with the size corresponding to the initial cut glass piece; 3) Simulate layout of the area within the tangent line frame to obtain multiple virtual frames corresponding to the sizes and depths of the cut glass pieces; 4) marking the defective virtual frame according to the position information; 5) Separate the glass ribbon along the cutting frame to obtain preliminary cut glass sheets; 6) Cut the preliminary cut glass pieces according to the simulated layout to obtain deep cut glass pieces, and scrap the marked deep cut glass pieces.

[0007] Furthermore, step 5) also includes the following operations: classifying the preliminary cut glass sheets according to the number of virtual frames marked on the preliminary cut glass sheets; defining the preliminary cut glass sheets with all virtual frames marked as waste, defining the preliminary cut glass sheets with some virtual frames marked as good products, and defining the preliminary cut glass sheets without marks as excellent products.

[0008] Furthermore, in step 6), the initially cut glass pieces defined as good and excellent products are cut according to the simulated layout to obtain deep cut glass pieces, and the marked deep cut glass pieces are scrapped.

[0009] Furthermore, in step 2), a cutting frame is firstly scratched on the glass ribbon along the length direction and the width direction.

[0010] Furthermore, in step 1), the position information is the basic coordinates of the defect, and the coordinate origin of the basic coordinates is the physical base point of the equipment used for defect detection.

[0011] Furthermore, in step 4), the displacement amount of the glass strip required for each engraving of the tangent frame is calculated based on the size of the initially cut glass piece and the spacing between adjacent tangent frames, and then the basic coordinates are converted into grabbing coordinates with a corner of the tangent frame as the coordinate origin according to the distances between the physical base point of the equipment used to engrave the tangent frame and the longitudinal and transverse lines, the relative positions of the physical base point of the equipment used to engrave the tangent frame and the physical base point of the equipment used for defect detection, and the displacement amount, the coordinate origin of the grabbing coordinates is used as the coordinate origin for executing the marking action, and a mark is made in the defective virtual frame according to the grabbing coordinates.

[0012] The present invention also includes a glass sheet production system applied to the above-mentioned glass sheet production method, the production system includes a first roller conveyor and a control processing device, the first roller conveyor is used to convey a glass ribbon, and a defect detection device for performing defect detection on the glass ribbon, a cutting device for engraving a cutting frame, a marking device for performing a marking action, and a slicing device for separating the glass ribbon to obtain preliminary cut glass sheets are arranged in sequence above the first roller conveyor along the conveying direction; the control processing device is electrically connected to the first roller conveyor, the defect detection device, the cutting device and the marking device respectively.

[0013] Furthermore, the cutting equipment includes a longitudinal cutting machine for carving longitudinal cutting lines along the length direction of the glass ribbon and a transverse cutting machine for carving transverse cutting lines along the width direction of the glass ribbon.

[0014] Furthermore, the control processing device is preset with typesetting information and relative position information of each device, and uses this to control the movement of the cutting device and adjust the trajectory of the longitudinal and transverse cutting lines; the control processing device controls the first roller conveyor to pause when the cutting device is drawing the cutting frame according to the movement of the cutting device.

[0015] Furthermore, the marking device is a laser engraving machine, which is used to obtain grabbing coordinates from the control processing device. The laser engraving machine grabs the tangent frame through visual positioning and uses the coordinate origin of the grabbing coordinates as the coordinate origin for executing the marking action. The laser engraving machine marks the defective virtual frame according to the grabbing coordinates; the slicing equipment includes a transverse breaking roller and an edge removal device. The transverse breaking roller is used to break the glass ribbon along the transverse line, and the edge removal device is used to remove materials outside the tangent frame along the longitudinal line.

[0016] Furthermore, the first roller conveyor includes a first transmission section, a second transmission section, a third transmission section and a fourth transmission section which are connected in sequence, and the fourth transmission section is provided with a stacking device; in the transmission direction of the first roller conveyor, the second transmission section is located behind the transverse breaking roller, and the third transmission section is located behind the edge removal device; a second roller conveyor is provided below the third transmission section; when waste products are conveyed to the third transmission section, the third transmission section descends to connect with the second roller conveyor, and the waste products are conveyed to the area for scrapping through the second roller conveyor, and when good and inferior products are conveyed to the third transmission section, the third transmission section remains connected with the fourth transmission section, and the good and inferior products are conveyed to the stacking device through the fourth transmission section, and the stacking device stacks the good and inferior products in piles.

[0017] Compared with the prior art, the present invention has the following beneficial effects: 1. The glass sheet production method of the present invention directly performs defect detection on the glass ribbon, which is more efficient than the current detection of the preliminary cut glass sheet and the deep cut glass sheet. After the detection, a mark is made near the defect according to the position information of the defect. After the preliminary cut glass sheet is cut into the deep cut glass sheet, only the marked deep cut glass sheet needs to be scrapped instead of the entire preliminary cut glass sheet. The present invention improves the production efficiency while reducing the loss caused by defects, which is beneficial to improving the utilization rate of resources and the qualified rate of glass sheet production.

[0018] 2. The glass sheet production method of the present invention classifies the preliminary cut glass sheets before cutting to obtain deep cut glass sheets, and scraps the preliminary cut glass sheets that cannot be cut into qualified deep cut glass sheets, thereby saving useless cutting work. Then, the remaining preliminary cut glass sheets are classified, and the unmarked preliminary cut glass sheets are defined as superior products, and the remaining preliminary cut glass sheets are defined as good products. The deep cut glass sheets cut from the superior products do not need to be checked for marks, which is beneficial to reducing the workload of cutting to obtain deep cut glass sheets and checking the deep cut glass sheets, and improving the production efficiency of glass sheets.

[0019] 3. The glass sheet production method of the present invention is carried out using the production system, wherein the glass ribbon is conveyed by the first roller conveyor to pass through the defect detection equipment, cutting equipment, marking equipment and slicing equipment in sequence, and the equipment works in coordination under the control of the control and processing equipment, so that each step of the production method is automatically completed in sequence, which is beneficial to reducing manual labor intensity and improving production quality and automation. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 is a flow chart of the production method described in the embodiment; Figure 2 A schematic diagram of the production system described in the embodiment; Figure 3 A schematic diagram of a preliminarily cut glass sheet in which all virtual frames are marked according to the embodiment; Figure 4 A schematic diagram of a partially virtual frame with marks on a preliminarily cut glass sheet according to an embodiment; Figure 5 A schematic diagram of a preliminarily cut glass sheet without markings according to the embodiment; Figure 6 It is a schematic diagram of cutting the preliminary cut glass sheet to obtain a finished glass sheet according to the embodiment; Among them, there are a first roller conveyor 1, a third transmission section 11, a defect detection device 2, a longitudinal cutter 31, an edge removal device 311, a cross-cutter 32, a transverse breaking roller 321, a marking device 4, a stacking device 5, a first container 51, a second container 52, a glass ribbon 6, a first edge 61, a second edge 62, a third edge 63, a fourth edge 64, a first side waste area 65, a second side waste area 66, a preliminary cut glass sheet 7, a deep cut glass sheet 71, a defect 8, a mark 81, a longitudinal cut line 91, a cross-cut line 92, and a virtual cutting line 93. DETAILED DESCRIPTION

[0021] To make the purpose, technical solution and advantages of the embodiments of the present invention more clear, the technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0022] Example: See also Figure 1 , a glass sheet production method, in the process of conveying a glass ribbon, the following steps are performed in sequence; 1) Perform defect detection on the glass ribbon to obtain defect information, including position information; 2) Score a cutting frame on the glass ribbon with the size corresponding to the initial cut glass piece; 3) Simulate layout of the area within the tangent frame to obtain multiple virtual frames corresponding to the sizes and depths of the cut glass pieces; 4) marking the defective virtual frame according to the position information; 5) Separate the glass ribbon along the cutting frame to obtain preliminary cut glass sheets; 6) Cut the preliminary cut glass pieces according to the simulated layout to obtain deep cut glass pieces, and scrap the marked deep cut glass pieces.

[0023] The glass sheet production method of the present invention first performs defect detection on the glass strip to obtain the position information of each defect, then carves a tangent frame on the glass strip to obtain the preliminary cut glass piece to be separated, and further performs simulated typesetting on the preliminary cut glass piece to be separated to obtain a virtual frame corresponding to the deep cut glass piece, after the preliminary cut glass piece is separated, a mark is made in the defective virtual frame according to the position information of the defect, and finally the deep cut glass piece is cut to obtain the deep cut glass piece and the marked deep cut glass piece is scrapped; the present invention directly performs defect detection on the glass strip, which is more efficient than the current detection of preliminary cut glass pieces and deep cut glass pieces, after the detection, a mark is made near the defect according to the position information of the defect, after the preliminary cut glass piece is cut into the deep cut glass piece, only the marked deep cut glass piece needs to be scrapped, instead of the entire preliminary cut glass piece, therefore, the present invention can reduce the loss caused by defects while improving the production efficiency, thereby improving the utilization rate of resources and the qualified rate of glass sheet production.

[0024] Specifically, in step 1), the position information is the basic coordinates of the defect, the coordinate origin of the basic coordinates is the physical base point of the device used for defect detection, and the physical base point of the device is the starting point for establishing a reference coordinate system during device control. For the device used for defect detection, during implementation, the center of the end for implementing defect detection can be defined as its physical base point; the defect information also includes defect type information and size information.

[0025] Specifically, in step 2), if Figure 2 and Figure 3As shown, two longitudinal cutting lines 91 are firstly cut on the glass ribbon 6 along the length direction, and then two transverse cutting lines 92 are cut on the glass ribbon 6 along the width direction. The longitudinal cutting lines 91 and the transverse cutting lines 92 intersect vertically and form a cutting frame.

[0026] Specifically, in step 3), if Figure 6 As shown, the simulated typesetting is to form a plurality of virtual frames whose sizes correspond to the depth of the cut glass piece 71 through a plurality of vertically staggered virtual cutting lines 93 .

[0027] Specifically, in step 4), the displacement amount of the glass strip required for each cutting of the cutting frame is calculated according to the size of the initially cut glass piece and the spacing between adjacent cutting frames, and then the basic coordinates are converted into grabbing coordinates with a corner of the cutting frame as the coordinate origin according to the distances between the physical base point of the equipment used for cutting the cutting frame and the longitudinal cutting line and the transverse cutting line, the relative positions of the physical base point of the equipment used for cutting the cutting frame and the physical base point of the equipment used for defect detection, and the displacement amount; the coordinate origin of the grabbing coordinates is used as the coordinate origin for performing the marking action, and a mark is made in the defective virtual frame according to the grabbing coordinates.

[0028] Specifically, step 5) also includes the following operations: classifying the preliminary cut glass sheets according to the number of virtual frames marked on the preliminary cut glass sheets; Figure 3 As shown in the figure, the preliminary cut glass sheets 7 with all the virtual frames marked are defined as waste. Figure 4 As shown in the figure, the preliminary cut glass pieces 7 marked in some virtual frames are defined as good products. Figure 5 As shown, the unmarked preliminary cut glass piece 7 is defined as a good product.

[0029] Specifically, in step 6), the initially cut glass pieces defined as good and excellent products are cut according to the simulated layout to obtain deep cut glass pieces, and the marked deep cut glass pieces are scrapped.

[0030] Thus, before the preliminary cut glass pieces are cut according to the simulated layout to obtain the deep cut glass pieces, the preliminary cut glass pieces are first classified. Figure 3 As shown, all the initially cut glass pieces 7 marked in the virtual frames are scrapped, that is, the initially cut glass pieces that cannot be cut into qualified deep cut glass pieces are scrapped, thereby saving useless cutting work; the remaining initially cut glass pieces are classified as follows Figure 4 As shown, the preliminary cut glass pieces 7 with marks in some virtual frames are defined as good products, such as Figure 6 As shown, the good products are deep-processed and cut according to the virtual cutting lines 93 of the simulated layout to obtain a plurality of deep-cut glass sheets 71, and then the deep-cut glass sheets 71 with defects 8 are screened out and scrapped by marking 81, and the deep-cut glass sheets 71 without defects 8 are packaged and shipped out of the factory; Figure 5As shown, the unmarked preliminary cut glass piece 7 is defined as a high-quality product. For the high-quality product, the deep-cut glass piece 71 can be directly cut and packaged for shipment, or directly packaged and shipped out of the factory for the client to cut and process on demand. The deep-cut glass piece 71 cut from the high-quality product does not need to be checked for markings, which is beneficial to reducing the workload of cutting the deep-cut glass piece 71 and checking the deep-cut glass piece 71 and improving the production efficiency of the glass pieces.

[0031] See also Figure 2 The glass sheet production method is carried out using a glass sheet production system, which includes a first roller conveyor 1 and a control processing device. The first roller conveyor 1 is used to convey a glass ribbon 6. A defect detection device 2, a cutting device for engraving a tangent frame, a marking device 4 for making a mark 81, and a slicing device for separating the glass ribbon 6 to obtain a preliminary cut glass sheet 7 are arranged in sequence above the first roller conveyor 1 along the conveying direction. The control processing device is electrically connected to the first roller conveyor 1, the defect detection device 2, the cutting device, and the marking device 4, respectively; the control processing device is used to control the actions of the first roller conveyor 1, the defect detection device 2, the cutting device, the marking device 4, and the slicing device, to simulate typesetting of an area within the tangent frame, to determine a virtual frame with defects 8 according to the position information, and to calculate and convert basic coordinates into grabbing coordinates.

[0032] The first roller conveyor 1 conveys the glass ribbon 6 along the length direction of the glass ribbon 6. Figure 2 As shown, the glass ribbon 6 after forming and cooling is conveyed by the first roller conveyor 1 to the defect detection device 2, and the glass ribbon 6 has a first edge 61 and a second edge 62 relative to each other in its width direction, and the first edge 61 and the second edge 62 extend along its length direction (transmission direction); in this embodiment, the defect detection device 2 adopts an AOI defect detector; the defect detection device 2 performs defect detection on the glass ribbon 6 to obtain defect information, and transmits the defect information to the control and processing device; the technician can obtain the type information and size information of the defect 8 on the glass ribbon 6 from the control and processing device, so as to adjust the production process of the glass ribbon 6 as needed, or perform other processing on the glass ribbon 6.

[0033] Correspondingly, layout information is preset in the control processing device, and the layout information includes the size of the preliminary cut glass piece 7, the size of the deep cut glass piece 71 and the spacing between adjacent cutting frames; the control processing device calculates the displacement required for the glass ribbon 6 to be drawn in front of the cutting frame each time according to the size of the preliminary cut glass piece 7 and the spacing between adjacent cutting frames, and controls the first roller conveyor 1 to intermittently convey the glass ribbon 6 according to the displacement.

[0034] The cutting device includes a longitudinal cutting machine 31 for carving a longitudinal cutting line 91 along the length direction of the glass ribbon 6 and a transverse cutting machine 32 for carving a transverse cutting line 92 along the width direction of the glass ribbon 6. Figure 2 As shown, the longitudinal cutting machine 31 and the cross cutting machine 32 are arranged in sequence along the transmission direction. Figure 2 Attached is an enlarged schematic diagram A of a glass ribbon 6 being processed by a cutting device to obtain a cutting frame; the cutting device first carves two longitudinal cutting lines 91 on the glass ribbon 6 through a longitudinal cutting machine 31, and then carves two transverse cutting lines 92 on the glass ribbon 6 through a transverse cutting machine 32, the longitudinal cutting lines 91 and the transverse cutting lines 92 intersect perpendicularly and enclose a cutting frame.

[0035] Correspondingly, the control processing device controls the action of the cutting device according to the size of the initially cut glass piece 7, adjusts the distance between the longitudinal cutting line 91 and the transverse cutting line 92 and the physical base point of the cutting device, so that the cutting frame corresponds to the size of the initially cut glass piece 7; the control processing device controls the first roller conveyor 1 to pause when the cutting device is drawing the cutting frame.

[0036] Among them, the marking device 4 is a laser engraving machine, which is used to obtain the grabbing coordinates from the control processing device. The laser engraving machine grabs the tangent frame through visual positioning and uses the coordinate origin of the grabbing coordinates as the coordinate origin for executing the marking action. The laser engraving machine marks the defective virtual frame according to the grabbing coordinates.

[0037] Correspondingly, the control and processing device also presets the relative position information of each device, and the relative position information of each device at least includes the relative position of the physical base point of the cutting device and the physical base point of the defect detection device 2, and the relative position is the distance between the two devices in the transmission direction and the distance in the direction perpendicular to the transmission direction; the control and processing device converts the basic coordinates into grabbing coordinates with one corner of the tangent box as the coordinate origin according to the distances between the longitudinal cutting line 91 and the transverse cutting line 92 and the physical base point of the cutting device, the relative position of the physical base point of the defect detection device 2 and the physical base point of the cutting device, and the displacement.

[0038] In this embodiment, a speed encoder (not shown in the figure) is electrically connected to the control processing device. The control processing device obtains the actual moving speed of the glass ribbon 6 through the speed encoder. The controller can grasp the positions of the glass ribbon 6 and the preliminarily cut glass sheet 7 according to the actual moving speed of the glass ribbon 6 and the running time of the first roller conveyor 1, so as to control the actions of each device accordingly; in addition, the control processing device calculates the displacement of the glass ribbon 6 required before each cutting frame is drawn according to the size of the preliminarily cut glass sheet 7 and the spacing between adjacent cutting frames, and then calculates the period of intermittent conveying of the glass ribbon 6 according to the displacement and the actual moving speed, so that the cutting device can sequentially draw multiple cutting frames along the length direction of the glass ribbon 6; when the glass ribbon 6 arrives at the defect detection device 2 for the first time, the period can be entered by manual operation, or a sensor electrically connected to the control processing device can be set up to detect whether the glass ribbon 6 is transferred to the position. When transferring, the control processing device automatically controls the first roller conveyor 1 to convey the glass ribbon 6 according to the period.

[0039] The slicing device includes a transverse breaking roller 321 and an edge removal device 311. The transverse breaking roller 321 first breaks the glass ribbon 6 along the transverse cutting line 92, and then the edge removal device 311 removes the material outside the cutting frame along the longitudinal cutting line 91 to obtain a preliminary cut glass sheet 7. Specifically, after the glass ribbon 6 is broken by the transverse breaking roller 321, a glass sheet having a first side waste area 65 and a second side waste area 66 in the width direction is obtained. Figure 2 Attached is an enlarged schematic diagram B of the glass ribbon 6 after being processed by the transverse breaking roller 321, and then after the first side waste area 65 and the second side waste area 66 are removed by the edge removal device 311, a preliminary cut glass sheet 7 is obtained. The preliminary cut glass sheet 7 has a third edge 63 in the width direction of the glass ribbon 6 and a fourth edge 64 in the length direction. Figure 2 Attached is an enlarged schematic diagram C of the glass sheet after being processed by the edge removal device 311; Figure 4 As shown, in this embodiment, the upper left corner of the tangent box is taken as the coordinate origin O of the grabbing coordinates, the distance between the defect 8 and the third edge 63 is L1, L1 is the ordinate of the grabbing coordinates, the distance between the defect 8 and the fourth edge 64 is L2, L2 is the abscissa of the grabbing coordinates, and the grabbing coordinates are the coordinate information of the defect obtained by the laser engraving machine to perform the marking action.

[0040] See also Figure 2In this embodiment, the first roller conveyor 1 includes a first transmission section, a second transmission section, a third transmission section 11 and a fourth transmission section which are connected in sequence, and the fourth transmission section is provided with a stacking device 5; in the transmission direction of the first roller conveyor 1, the second transmission section is located behind the transverse breaking roller 321, and the third transmission section 11 is located behind the edge removal device 311; a second roller conveyor is provided below the third transmission section 11; when the waste products are transported to the third transmission section 11, the third transmission section 11 is lowered to connect with the second roller conveyor, and the waste products are transported to the area for scrapping through the second roller conveyor, and when the good products and the good products are transported to the third transmission section 11, the third transmission section 11 remains connected with the fourth transmission section, and the good products and the good products are transported to the stacking device 5 through the fourth transmission section, and the stacking device 5 stacks the good products and the good products separately; in this embodiment, a first container 51 and a second container 52 are provided next to the stacking device 5, and the first container 51 and the second container 52 are used to hold the good products and the good products respectively, so as to facilitate the separate treatment of the good products and the good products.

[0041] In the production method of glass sheets of the present invention, the control processing device can coordinate and control the first roller conveyor, the defect detection device, the cutting device, the marking device, the slicing device and the stacking device to work together, firstly, the glass strip is subjected to defect detection to obtain the position information of each defect, then a tangent frame is carved on the glass strip to obtain the preliminary cut glass sheet to be separated, and further the preliminary cut glass sheet to be separated is simulated and typeset to obtain a virtual frame corresponding to the deep cut glass sheet, after the preliminary cut glass sheet is separated, a mark is made in the defective virtual frame according to the position information of the defect, and finally the deep cut glass sheet is cut to obtain the deep cut glass sheet and the marked deep cut glass sheet is scrapped; in the subsequent deep processing, the preliminary cut glass sheet is cut into the deep cut glass sheet, and only the defective deep cut glass sheet with the laser engraving mark needs to be scrapped, instead of scrapping the entire preliminary cut glass sheet, therefore, the production method can reduce the loss rate caused by glass defects and improve the glass utilization rate and the final qualified rate of production.

[0042] In addition, in the production system adopted by the production method of the glass sheets described in the present invention, the control processing equipment can record the number of marks on each piece of preliminary cut glass, and output the marking information to the stacking equipment, and the stacking equipment can separately stack and package the preliminary cut glass sheets with marks and the preliminary cut glass sheets without marks; during deep processing, the preliminary cut glass sheets without marks are cut into deep cut glass sheets. If there are no other quality defects under the control of the deep processing area, they can all be packaged as good glass sheets, and the preliminary cut glass sheets with marks are separately cut for deep processing, and the deep cut glass sheets with marks are scrapped, and the deep cut glass sheets without marks can be packaged; the actual production of marked glass sheets is usually a relatively small amount. If the stacking equipment does not distinguish between mixed materials and stacking, a large amount of equipment or manpower will be required to detect and remove the preliminary cut glass sheets during deep processing. Therefore, based on the production method, on the other hand, the production efficiency of the preliminary cut glass sheets during deep processing can be improved, and the intensity of manual work can be reduced.

[0043] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention rather than to limit the technical solution. Those skilled in the art should understand that those modifications or equivalent substitutions of the technical solution of the present invention that do not depart from the purpose and scope of the technical solution should be included in the scope of the claims of the present invention.

Claims

1. A method for producing a glass sheet, characterized in that: The following steps are performed in sequence during the conveying process of the glass ribbon: 1) Perform defect detection on the glass ribbon to obtain defect information, including position information; 2) Score a cutting frame on the glass ribbon with the size corresponding to the initial cut glass piece; 3) Simulate layout of the area within the tangent line frame to obtain multiple virtual frames corresponding to the sizes and depths of the cut glass pieces; 4) marking the defective virtual frame according to the position information; 5) Separate the glass ribbon along the cutting frame to obtain preliminary cut glass sheets; 6) Cut the preliminary cut glass pieces according to the simulated layout to obtain deep cut glass pieces, and scrap the marked deep cut glass pieces.

2. A method for producing a glass sheet according to claim 1, characterized in that: Step 5) also includes the following operations: classifying the preliminary cut glass pieces according to the number of virtual frames marked on the preliminary cut glass pieces; defining the preliminary cut glass pieces with all virtual frames marked as waste, defining the preliminary cut glass pieces with some virtual frames marked as good products, and defining the preliminary cut glass pieces without marks as excellent products.

3. A method for producing a glass sheet according to claim 2, characterized in that: In step 6), the preliminary cut glass pieces defined as good and excellent products are cut according to the simulated layout to obtain deep cut glass pieces, and the marked deep cut glass pieces are scrapped.

4. The method for producing a glass sheet according to claim 1, characterized in that: In step 2), a cutting frame is firstly cut on the glass ribbon along the length direction and the width direction.

5. A method for producing a glass sheet according to claim 4, characterized in that: In step 1), the position information is the basic coordinates of the defect, and the coordinate origin of the basic coordinates is the physical base point of the equipment used for defect detection.

6. A method for producing a glass sheet according to claim 5, characterized in that: In step 4), the displacement of the glass strip in front of the cutting frame is calculated each time according to the size of the initially cut glass piece and the spacing between adjacent cutting frames. Then, according to the distances between the physical base point of the equipment used to cut the cutting frame and the longitudinal and transverse lines, the relative positions of the physical base point of the equipment used to cut the cutting frame and the physical base point of the equipment used for defect detection, and the displacement, the basic coordinates are converted into grabbing coordinates with a corner of the cutting frame as the coordinate origin. The coordinate origin of the grabbing coordinates is used as the coordinate origin for executing the marking action, and a mark is made in the defective virtual frame according to the grabbing coordinates.

7. A glass sheet production system applied to the glass sheet production method according to claim 6, characterized in that: The production system includes a first roller conveyor and a control and processing device. The first roller conveyor is used to convey a glass ribbon. A defect detection device for performing defect detection on the glass ribbon, a cutting device for engraving a cutting frame, a marking device for performing a marking action, and a slicing device for separating the glass ribbon to obtain preliminary cut glass sheets are arranged in sequence above the first roller conveyor along the conveying direction; the control and processing device is electrically connected to the first roller conveyor, the defect detection device, the cutting device, and the marking device, respectively.

8. The glass sheet production system according to claim 7, characterized in that: The cutting equipment includes a longitudinal cutting machine for cutting a longitudinal cutting line along the length direction of the glass ribbon and a transverse cutting machine for cutting a transverse cutting line along the width direction of the glass ribbon.

9. The glass sheet production system according to claim 8, characterized in that: The control processing device is preset with typesetting information and relative position information of each device, and uses this to control the movement of the cutting device and adjust the trajectory of the longitudinal and transverse cutting lines; the control processing device controls the first roller conveyor to pause when the cutting device is drawing the cutting frame according to the movement of the cutting device.

10. The glass sheet production system according to claim 7, characterized in that: The marking equipment is a laser engraving machine, which is used to obtain the grabbing coordinates from the control processing equipment. The laser engraving machine grabs the tangent frame through visual positioning and uses the coordinate origin of the grabbing coordinates as the coordinate origin for executing the marking action. The laser engraving machine marks the defective virtual frame according to the grabbing coordinates; the slicing equipment includes a transverse breaking roller and an edge removal device. The transverse breaking roller is used to break the glass ribbon along the transverse line, and the edge removal device is used to remove materials outside the tangent frame along the longitudinal line.

11. The glass sheet production system according to claim 10, characterized in that: The first roller conveyor includes a first transmission section, a second transmission section, a third transmission section and a fourth transmission section which are connected in sequence, and the fourth transmission section is provided with a stacking device; in the transmission direction of the first roller conveyor, the second transmission section is located behind the transverse breaking roller, and the third transmission section is located behind the edge removal device; a second roller conveyor is provided below the third transmission section; when waste products are conveyed to the third transmission section, the third transmission section descends to connect with the second roller conveyor, and the waste products are conveyed to the area for scrapping through the second roller conveyor, and when good and superior products are conveyed to the third transmission section, the third transmission section remains connected with the fourth transmission section, and the good and superior products are conveyed to the stacking device through the fourth transmission section, and the stacking device stacks the good and superior products in piles.

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