CN110430971B - Method and apparatus for manufacturing glass plate - Google Patents
Method and apparatus for manufacturing glass plate Download PDFInfo
- Publication number
- CN110430971B CN110430971B CN201880019523.7A CN201880019523A CN110430971B CN 110430971 B CN110430971 B CN 110430971B CN 201880019523 A CN201880019523 A CN 201880019523A CN 110430971 B CN110430971 B CN 110430971B
- Authority
- CN
- China
- Prior art keywords
- glass plate
- fixing portion
- support
- outer fixing
- end surfaces
- 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 202
- 238000004519 manufacturing process Methods 0.000 title claims description 36
- 238000000034 method Methods 0.000 title claims description 30
- 238000001179 sorption measurement Methods 0.000 claims description 15
- 238000003754 machining Methods 0.000 claims description 13
- 230000007246 mechanism Effects 0.000 claims description 12
- 239000012530 fluid Substances 0.000 claims description 8
- 210000004209 hair Anatomy 0.000 description 9
- 239000000843 powder Substances 0.000 description 6
- 238000003825 pressing Methods 0.000 description 6
- 229920001971 elastomer Polymers 0.000 description 5
- 239000000463 material Substances 0.000 description 5
- 239000000428 dust Substances 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 230000004048 modification Effects 0.000 description 4
- 238000012986 modification Methods 0.000 description 4
- 229920001296 polysiloxane Polymers 0.000 description 3
- 229920002635 polyurethane Polymers 0.000 description 3
- 239000004814 polyurethane Substances 0.000 description 3
- 210000002268 wool Anatomy 0.000 description 3
- 239000004677 Nylon Substances 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 230000006866 deterioration Effects 0.000 description 2
- 229920001778 nylon Polymers 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 239000006061 abrasive grain Substances 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 238000005498 polishing Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B9/00—Machines or devices designed for grinding edges or bevels on work or for removing burrs; Accessories therefor
- B24B9/02—Machines or devices designed for grinding edges or bevels on work or for removing burrs; Accessories therefor characterised by a special design with respect to properties of materials specific to articles to be ground
- B24B9/06—Machines or devices designed for grinding edges or bevels on work or for removing burrs; Accessories therefor characterised by a special design with respect to properties of materials specific to articles to be ground of non-metallic inorganic material, e.g. stone, ceramics, porcelain
- B24B9/08—Machines or devices designed for grinding edges or bevels on work or for removing burrs; Accessories therefor characterised by a special design with respect to properties of materials specific to articles to be ground of non-metallic inorganic material, e.g. stone, ceramics, porcelain of glass
- B24B9/10—Machines or devices designed for grinding edges or bevels on work or for removing burrs; Accessories therefor characterised by a special design with respect to properties of materials specific to articles to be ground of non-metallic inorganic material, e.g. stone, ceramics, porcelain of glass of plate glass
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B41/00—Component parts such as frames, beds, carriages, headstocks
- B24B41/06—Work supports, e.g. adjustable steadies
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B41/00—Component parts such as frames, beds, carriages, headstocks
- B24B41/06—Work supports, e.g. adjustable steadies
- B24B41/065—Steady rests
-
- 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)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Ceramic Engineering (AREA)
- Inorganic Chemistry (AREA)
- Grinding And Polishing Of Tertiary Curved Surfaces And Surfaces With Complex Shapes (AREA)
- Constituent Portions Of Griding Lathes, Driving, Sensing And Control (AREA)
Abstract
When the end face (2a) of the glass plate (2) protruding from the support table (3) is processed in a state where the glass plate (2) is fixed to the support table (3), the support table (3) is provided with a fixing portion (9) capable of fixing the glass plate (2) and a brush support portion (11) for supporting the glass plate (2) with a brush.
Description
Technical Field
The present invention relates to a method for manufacturing a glass plate including a step of processing an end face of the glass plate, and an apparatus for manufacturing a glass plate for performing the method.
Background
As is well known, in a glass plate manufacturing process, a glass plate is often cut to a product size. Since a plurality of defects such as fine cracks are included in the end surface of the glass sheet formed by cutting, a step of processing the end surface by grinding or the like is generally performed on the cut glass sheet in order to remove the defects.
Here, patent document 1 discloses an example of a specific embodiment of executing the above-described steps. In the system disclosed in this document, a rectangular glass plate is placed on and fixed to a work table (precision stage), and both parallel end surfaces of the glass plate protruding from the work table are ground by a grinding wheel.
A large number of suction holes are formed in a mounting surface of a glass plate provided on the work table, and the glass plate is sucked through the suction holes to be fixed to the work table. In this embodiment, suction holes are uniformly formed in the mounting surface in order to fix the entire glass plate to the work table except for the portion protruding from the work table.
Prior art documents
Patent document
Patent document 1: japanese patent laid-open No. 2012 and 11547
Disclosure of Invention
Problems to be solved by the invention
However, when the end faces of the glass plate are processed in the above-described mode, there are problems to be solved as follows.
That is, in the end face processing of the glass plate, a part of the glass plate is ground by the grinding wheel to become glass powder. Further, the grinding wheel is consumed by machining, and the abrasive grains and the binder are separated from the grinding wheel to become grinding wheel chips. In addition, in the above-described aspect, there is a difficulty in that the quality of the glass sheet is easily degraded by the glass powder and the grinding wheel chips. This is because, when the glass plate is fixed to the work table, the lower surface of the glass plate is easily damaged by the glass frit or the grinding dust interposed between the lower surface and the mounting surface of the work table.
In addition, the process of processing the end face is not limited, and it is required to reduce costs consumed in each manufacturing process as much as possible when manufacturing a glass plate. From the viewpoint of cost reduction, the above-described system still has room for improvement.
The present invention has been made in view of the above circumstances, and an object thereof is to suppress deterioration in quality of a glass sheet when processing an end face of the glass sheet, and to reduce the cost required for the processing.
Means for solving the problems
The present invention, which has been made in order to solve the above problems, is a method for producing a glass plate, comprising an end face processing step of processing an end face of a glass plate protruding from a support table in a state where the glass plate is fixed to the support table, wherein the support table is provided with a fixing portion capable of fixing the glass plate and a support portion for supporting the glass plate by a plurality of elastic members.
By this method, the quality degradation of the glass sheet due to the glass powder and the grinding wheel chips can be suppressed. This is because, in the support portion provided on the support table, even if glass frit or the like is interposed between each of the plurality of elastic members and the lower surface of the glass plate, damage to the lower surface of the glass plate by the glass frit or the like can be suppressed in accordance with deformation of the elastic members. In addition, according to the method, the cost required for the end face machining step can be reduced by providing the support portion on the support base. This is because the support portion does not include a mechanism for fixing the glass plate, and therefore, the operating cost of the mechanism for fixing is inevitably unnecessary, and high accuracy is not required for the arrangement of the elastic member. The support unit does not include a mechanism for fixing the glass plate, but the support base can fix the glass plate by the fixing unit. Therefore, the present method can perform the end surface processing step without any problem. For the above reasons, according to the method, when the end face of the glass plate is processed, the quality of the glass plate can be suppressed from being degraded, and the cost for processing can be reduced.
In the above method, the support unit is preferably a brush support unit that supports the glass plate with a brush.
Thus, even if glass frit or the like is interposed between the bristle ends of the brushes and the lower surface of the glass plate, the bristles are deflected, thereby effectively preventing the lower surface of the glass plate from being damaged by the glass frit or the like.
In the above method, preferably, the glass plate has a rectangular shape, and when both end surfaces of the glass plate extending in parallel with each other are processed in the end surface processing step, a first outer fixing portion and a second outer fixing portion extending along both end surfaces are provided as the fixing portions on the support base, the first outer fixing portion is disposed closer to one of the both end surfaces than the support portion, and the second outer fixing portion is disposed closer to the other of the both end surfaces than the support portion.
In this way, the peripheral portion of the end face of the glass plate is fixed by the outer fixing portion, and therefore, the end face can be processed with higher accuracy.
In the above method, the support portion preferably extends in a direction in which both end surfaces extend.
When processing both end surfaces of a glass sheet extending in parallel to each other, a glass sheet before processing may be carried into a support base and a glass sheet after processing may be carried out from the support base using a carrying belt capable of carrying the glass sheet in a direction parallel to both end surfaces. Therefore, if the support portion extends in the direction in which the both end surfaces extend, the conveyor belt is in a state of extending parallel to the support portion, and it is possible to reliably avoid a situation in which the support portion obstructs the operation of the conveyor belt.
In the above method, it is preferable that the support base is provided with an inner fixing portion as a fixing portion, the inner fixing portion being disposed between the first outer fixing portion and the second outer fixing portion.
In this way, the fixing by the outer fixing portion can be assisted by the inner fixing portion, and the glass plate can be fixed more firmly. Therefore, even a large glass plate (for example, a glass plate having a vertical dimension of 1000mm or more and a horizontal dimension of 1000mm or more) can be processed with improved end face processing accuracy.
In the above method, it is preferable that the support base is configured to be symmetrical with respect to a symmetry axis extending parallel to the both end surfaces.
In this way, the glass plate on the support base is uniformly urged by the support base against both a portion existing on one side of the axis of symmetry and a portion existing on the other side of the axis of symmetry. This is advantageous in that the end surface processing step is performed with high accuracy.
In the above method, it is preferable that the method further includes a positioning step of moving and positioning the glass plate on the support table before the end face machining step is performed.
In this way, by performing the positioning step before the end surface machining step is performed, the machining accuracy of the end surface can be improved. In the present method, the following effects can be obtained also when the positioning step is performed by providing the support portion on the support base. That is, when the glass plate is moved on the support base at the time of positioning, resistance applied to the glass plate can be suppressed, and therefore, the glass plate can be easily moved as desired. As a result, the accuracy of positioning can be improved. In addition, in the case where the glass plate has flexibility, it is difficult to move the glass plate on the support table, but in this method, even in such a case, the glass plate can be easily moved.
In the above method, preferably, the fixing portion has: an adsorption hole for adsorbing and fixing the lower surface of the glass plate during the end face machining process; and a supply port for supplying fluid between the fixing portion and the lower surface of the glass plate during the positioning step.
In this way, when the end face machining step is performed, the lower surface of the glass plate is sucked and fixed by the suction hole for the fixing portion, and thus the end face can be machined appropriately. In addition, when the positioning step is performed, the fluid is supplied from the supply port to the space between the fixing portion and the lower surface of the glass plate, so that the resistance applied to the glass plate can be suppressed.
In the above method, it is preferable that the number of the suction holes of the first outer fixing portion and the second outer fixing portion is larger than the number of the suction holes of the inner fixing portion.
Here, when comparing the outer fixing portion and the inner fixing portion, the inner fixing portion has a small influence on the fixing in the vicinity of both end surfaces. With the above configuration, the vicinities of both end surfaces of the glass plate can be effectively and firmly fixed.
In the above method, preferably, when a releasing step of releasing the fixation of the fixing portion to the glass plate by ejecting gas from the adsorption holes is included after the end face machining step is performed, an adsorption hole row in which the adsorption holes are arranged in a direction in which the both end faces extend and a supply port row in which the supply ports are arranged in a direction in which the both end faces extend are arranged in the fixing portion, and the adsorption hole row and the supply port row are arranged close to an end face closer to the fixing portion.
In the case where the suction hole row is close to the end face as described above, the fixation of the glass plate is easily released in the releasing step, as compared with the case where the supply port row is close to the end face. Therefore, even if the fixation of the glass plate is released in the release step, the failure of the adhesion between the glass plate and the fixation portion can be reduced.
Further, the present invention made in order to solve the above problems is an apparatus for manufacturing a glass plate, comprising: a support table capable of fixing the glass plate in a state of supporting the glass plate from below; and an end face processing mechanism for processing the end face of the glass plate fixed on the support table, wherein the end face of the glass plate extends out of the support table. In this apparatus, the support portion is preferably a brush support portion for supporting the glass plate with a brush.
According to the apparatus for manufacturing a glass plate, the same operation and effects as those of the above-described method for manufacturing a glass plate can be obtained.
Effects of the invention
According to the present invention, when processing the end face of a glass plate, it is possible to suppress a decrease in quality of the glass plate and to reduce the cost for processing.
Drawings
Fig. 1 is a plan view showing a schematic configuration of a method and an apparatus for manufacturing a glass sheet according to an embodiment of the present invention.
Fig. 2 is a perspective view showing a method and an apparatus for manufacturing a glass plate according to an embodiment of the present invention.
Fig. 3 is a perspective view schematically showing an elastic member of a support portion according to another embodiment of the present invention.
Fig. 4 is a perspective view schematically showing an elastic member of a support portion according to another embodiment of the present invention.
Fig. 5a is a perspective view schematically showing an elastic member of a support portion according to another embodiment of the present invention.
Fig. 5b is a perspective view schematically showing an elastic member of a support portion according to another embodiment of the present invention.
Fig. 5c is a perspective view schematically showing an elastic member of the support portion according to another embodiment of the present invention.
Detailed Description
Hereinafter, a method and an apparatus for manufacturing a glass plate according to an embodiment of the present invention will be described with reference to the drawings.
First, an apparatus for manufacturing a glass plate will be described.
As shown in fig. 1, a glass plate manufacturing apparatus 1 (hereinafter, simply referred to as a manufacturing apparatus 1) includes: a support table 3 capable of fixing the glass plate 2 in a state of supporting the glass plate 2 from below; a plurality of conveying belts 4 as conveying means for conveying the glass plate 2 before the end face 2a is processed into the support base 3 in the direction of T1 and conveying the processed glass plate 2 out of the support base 3 in the direction of T2; a pressing member 5 and a positioning pin 6 as a positioning mechanism for moving and positioning the glass plate 2 on the support base 3 in the U direction after the glass plate is carried into the support base 3 and before the glass plate is fixed; and a grinding wheel 7 as an end face processing means for processing the end face 2a of the positioned and fixed glass plate 2 projecting from the support base 3 while moving in the direction of T3.
The manufacturing apparatus 1 is configured to grind both end surfaces 2a, 2a extending in parallel to each other of a rectangular glass plate 2. Both end surfaces 2a, 2a of the glass plate 2 fixed to the support base 3 extend in parallel to the T1 direction and the T2 direction. In the following description, the T1 direction and the T2 direction are collectively referred to as a feeding direction.
Here, in the present embodiment, the manufacturing apparatus 1 is configured to perform grinding processing on both end surfaces 2a, but is not limited to this. For example, as a modification of the present embodiment, the manufacturing apparatus 1 may be configured to perform polishing on both end surfaces 2a, 2a in addition to or instead of the grinding. Further, the both end surfaces 2a and 2a may be sequentially processed by a plurality of grindstones arranged in line in the feed direction. Further, either one of the both end surfaces 2a, 2a may be processed.
The support table 3 has a structure symmetrical with respect to a symmetry axis 8 extending parallel to the feeding direction. The support table 3 is formed by arranging a plurality of blocks formed long along the feeding direction in parallel. In the present embodiment, there are twelve blocks in total, and in the following description, each block is referred to as a block a, a block B, …, a block K, and a block L in this order.
Both the blocks a and the blocks L disposed at both ends in the block arrangement direction (direction orthogonal to the feeding direction and parallel to the U direction, hereinafter simply referred to as the arrangement direction) are provided with outer fixing portions 9 (first outer fixing portions 9 or second outer fixing portions 9) capable of fixing a portion of the glass plate 2 located above itself. The outer fixing portion 9 extends along the feeding direction (end surface 2 a). In the present embodiment, the length of the outer fixing portion 9 in the feeding direction is slightly shorter than the length of the glass plate 2 in the feeding direction, but may be the same as the length of the glass plate 2 in the feeding direction or may be longer than the length of the glass plate 2 in the feeding direction.
An inner fixing portion 10 capable of fixing a portion of the glass plate 2 located above the block C, F, G, J, among a plurality of blocks arranged between two blocks A, L, is provided. Further, at block B, D, E, H, I, K, a brush support portion 11 for supporting a portion of the glass plate 2 located above the brush is provided as a support portion for supporting the glass plate 2 by a plurality of elastic members. Of the outer fixing portion 9, the inner fixing portion 10, and the brush support portion 11, the outer fixing portion 9 is disposed closest to the end surface 2 a. The inner fixing portion 10 and the brush support portion 11 extend along the feeding direction (end surface 2 a). In the present embodiment, the lengths of the inner fixing portion 10 and the brush support portion 11 in the feeding direction are slightly shorter than the length of the glass plate 2 in the feeding direction, but may be the same as the length of the glass plate 2 in the feeding direction or may be longer than the length of the glass plate 2 in the feeding direction.
Here, as a modification of the present embodiment, only the brush support portion 11 may be provided between the two blocks A, L without providing the inner fixing portion 10 therebetween. This modification is preferably employed when the glass plate 2 is less likely to be bent at a portion located between the two blocks A, L.
The outer fixing portion 9, the inner fixing portion 10, and the brush support portion 11 are divided into a plurality of (four in the present embodiment) units in the feeding direction and arranged in each block. Each unit is detachable independently of the other units. By this removal, the units can be replaced with new units having different heights and lengths of bristles, for example, on the support surface 12 (see fig. 2) supporting the lower surface 2b of the glass plate 2. Alternatively, the inner fixing portion 10 may be removed and the brush support portion 11 may be attached instead.
As shown in fig. 2 (only blocks a to E are shown in the figure), each of the outer fixing portions 9 and the inner fixing portions 10 has a support surface 12 (a mounting surface of the glass plate 2) for supporting the lower surface 2b of the glass plate 2. The support surface 12 is formed in a flat surface (horizontal surface) and is made of a material having high elasticity (e.g., rubber).
The length Z of the support surface 12 of each unit in the feed direction is the same between the outer fixing portion 9 and the inner fixing portion 10. The width W of the support surface 12 along the arrangement direction is also the same between the outer fixing portion 9 and the inner fixing portion 10. Further, the support surface 12 of the outer fixing portion 9 and the support surface 12 of the inner fixing portion 10 are located at the same height. The width W of the outer fixing portion 9 and the inner fixing portion 10 may be, for example, 10mm to 500mm, and preferably 20mm to 300 mm. The length Z and width W of the support surface 12 may be different between the outer fixing portion 9 and the inner fixing portion 10.
Suction holes 13 are formed in the support surfaces 12 of the outer fixing portion 9 and the inner fixing portion 10, respectively, and the suction holes 13 suck and fix the lower surface 2b of the glass plate 2 when the end surface 2a is processed, and inject gas (for example, air or the like) toward the lower surface 2b when the fixation is released after the processing. Further, a supply port 14 is formed, and the supply port 14 supplies a fluid (for example, a liquid such as water) between the support surface 12 and the lower surface 2b of the glass plate 2 at the time of positioning the glass plate 2.
In each of the outer fixing portion 9 and the inner fixing portion 10, the suction holes 13 and the supply ports 14 are arranged in a row along the feeding direction. The outer fixing portion 9 and the inner fixing portion 10 have only one row of suction holes 13. Both the outer fixing portion 9 and the inner fixing portion 10 have a supply port row in which only one row of supply ports 14 is arranged. In both of the outer fixing portion 9 and the inner fixing portion 10, the suction hole row of the suction hole row and the supply port row is disposed close to the end surface 2 a. In addition, a plurality of suction hole rows or a plurality of supply port rows may be provided in either one of the outer fixing portion 9 and the inner fixing portion 10. In these cases, the adsorption hole row closest to the end face 2a is preferably arranged closer to the end face 2a than the supply port row.
The number of the suction holes 13 is larger in the outer fixing portions 9 than in the inner fixing portions 10. The number of the supply ports 14 is the same between the outer fixing portion 9 and the inner fixing portion 10.
The brush constituting the brush support portion 11 includes a flat plate 15 and a bristle group 16 formed by implanting bristles on the flat plate 15. In the present embodiment, each bristle group 16 of the brush constitutes an elastic member.
The wool pack 16 is a structure in which a large number of wool are densely packed. The bristle groups 16 are arranged in three rows in the array direction and are arranged at intervals along the feeding direction. Here, the material of the wool is preferably nylon, rubber, or the like. The distance between the hair groups 16 along the arrangement direction is preferably in the range of 2mm to 200 mm. The distance between the hair groups 16 in the feed direction is preferably in the range of 2mm to 200 mm. The hair groups 16 may be arranged in a single row or in a plurality of rows in the arrangement direction.
The hair ends of the hairs included in each hair group 16 are located at the same height as the support surfaces 12 provided in the outer fixing portion 9 and the inner fixing portion 10. Here, the length of the hair (equivalent to the length from the flat plate 15 to the hair end) is preferably in the range of 2mm to 50 mm. The diameter of the bristles is preferably in the range of 0.02mm to 5 mm.
Here, as a modification of the present embodiment, a roller brush may be disposed instead of the above-described brush. In this case, for example, the top of the roller brush is located at the same height as the support surface 12 provided in the outer fixing portion 9 and the inner fixing portion 10.
A plurality of (five in the present embodiment) conveyance belts 4 extend in the feeding direction between blocks B, C, between blocks D, E, between blocks F, G, between blocks H, I, and between blocks J, K, respectively, in a state of being wound around drive pulleys and driven pulleys (not shown). Each of the conveyor belts 4 can change the height position of the conveyor surface 4a by an elevator mechanism not shown.
The plurality of conveyor belts 4 can sequentially perform the following operations (1) to (3) in a state synchronized with each other.
(1) First, when the glass plate 2 is carried into the support base 3, the glass plate 2 is conveyed in the feeding direction in a state where the height position of the conveying surface 4a of each conveying belt 4 is higher than the support surfaces 12 of the outer fixing portion 9 and the inner fixing portion 10 and the butt of the brush.
(2) When the glass plate 2 reaches the support base 3, the height position of the conveyance surface 4a is gradually lowered. When the height position of the conveying surface 4a becomes lower than the support surfaces 12 of the outer fixing portions 9 and the inner fixing portions 10 and the brush butt, the glass plate 2 is transferred from each of the conveying belts 4 to the support base 3. Thereby, the glass plate 2 is supported by the outer fixing portion 9, the inner fixing portion 10, and the brush support portion 11. Each of the conveyor belts 4 after the glass plate 2 is transferred to the support base 3 waits in the space S formed between the blocks arranged on both sides thereof until the processing of both end surfaces 2a and 2a is completed. The width of the space S along the arrangement direction is wider than the width of each of the conveyor belts 4.
(3) When the processing of the both end surfaces 2a, 2a is completed, the height position of the conveyance surface 4a is gradually raised. When the height position of the conveying surface 4a becomes higher than the support surfaces 12 of the outer fixing portions 9 and the inner fixing portions 10 and the brush ends, the glass plate 2 is transferred from the support base 3 to the conveying belts 4. Finally, the glass sheet 2 is conveyed in the feeding direction in a state where the height position of the conveying surface 4a is higher than the support surfaces 12 of the outer fixing portion 9 and the inner fixing portion 10 and the brush butt. Thereby, the glass plate 2 is carried out from the support base 3.
As shown in fig. 1, the pressing members 5 are arranged in two sets. Each of the two sets includes a columnar tip end portion 5a that contacts one of the both end surfaces 2a, and an actuator 5b for moving the tip end portion 5a in the U direction.
The positioning pins 6 are arranged in line along the feeding direction. Each positioning pin 6 can stop the movement of the glass plate 2 in the U direction by coming into contact with the other of the both end surfaces 2a, 2 a.
At the time of positioning the glass plate 2, both the pressing member 5 and the positioning pin 6 cooperate as described below. First, the tip end portion 5a of the pressing member 5 abuts on one of the both end surfaces 2a, 2 a. Then, the glass plate 2 is pressed in the U direction by the tip end portion 5a moved in the U direction by the actuator 5 b. Then, when the other of the both end surfaces 2a and 2a abuts on the positioning pin 6 to stop the movement of the glass plate 2, the positioning of the glass plate 2 is completed. After the positioning is completed, both the pressing member 5 and the positioning pin 6 are separated from the glass plate 2 and retracted to a position where they can avoid contact with the grinding wheel 7.
The grinding wheel 7 is provided with a grinding wheel for grinding one of the both end surfaces 2a, 2a and a grinding wheel for grinding the other of the both end surfaces 2a, 2 a. The grinding wheels 7 and 7 rotate about axes extending in the vertical direction, and are guided by guides, not shown, to move in the direction T3 along linear rails. The T3 direction in the present embodiment is the direction opposite to the feeding direction, but may be the same direction. In the present embodiment, the grinding process is performed while the grinding wheels 7 and 7 are running side by side through the glass plate 2.
A method for producing a glass plate using the above-described production apparatus 1 will be described below.
Here, the thickness of the glass plate 2 to be processed on both end surfaces 2a and 2a is not particularly limited, but in the present embodiment, the glass plate 2 to be processed is formed to have a thickness (for example, 700 μm or less) sufficient to impart flexibility.
First, the glass plate 2 having both end surfaces 2a and 2a before processing (unprocessed) is carried into the support base 3 by the plurality of conveyor belts 4.
Next, the glass plate 2 carried into the support base 3 is supported by the outer fixing portion 9, the inner fixing portion 10, and the brush support portion 11. At this time, the glass plate 2 is in a non-fixed state with respect to the support base 3. Then, in the positioning step, the glass plate 2 is positioned on the support base 3 by both the pressing member 5 and the positioning pin 6. When this positioning step is performed, the fluid is supplied from the supply port 14 to each of the outer fixing portion 9 and the inner fixing portion 10.
Then, when the positioning step is completed, the supply of the fluid from the supply port 14 is stopped at each of the outer fixing portion 9 and the inner fixing portion 10. The fluid may be continuously supplied from the supply port 14. Then, the lower surface 2b of the glass plate 2 is sucked and fixed by the suction holes 13, whereby the glass plate 2 is fixed to the support base 3. Then, in the end face processing step, both end faces 2a, 2a of the glass plate 2 are ground by both grindstones 7, 7. After the end face machining step is completed, gas is injected from the adsorption holes 13 to release the adsorption, and the fixation of the glass plate 2 to the support base 3 is released (release step).
Finally, the glass plate 2 having both end surfaces 2a and 2a processed (processed) is carried out from the support base 3 by the plurality of carrying belts 4.
Hereinafter, the main operation and effects of the manufacturing apparatus 1 and the method for manufacturing a glass plate using the manufacturing apparatus 1 will be described.
According to the manufacturing apparatus 1 and the glass plate manufacturing method described above, even if glass powder or abrasive dust is interposed between the brush bristles and the lower surface 2b of the glass plate 2 in the brush support portion 11 provided in the support base 3, the bristles of the brush are bent due to the elasticity of the bristles of the brush. Therefore, the lower surface 2b of the glass plate 2 can be prevented from being damaged by the glass frit and the grinding wheel chips. Therefore, the quality of the glass plate 2 can be prevented from being degraded by the glass powder and the grinding wheel chips. Further, since the brush support portion 11 does not include a mechanism for fixing the glass plate 2, the operating cost of the mechanism for fixing is not necessarily required, and the cost for processing the end face 2a can be reduced because the brush is not required to be provided with high accuracy.
In the present embodiment, the outer fixing portion 9 and the inner fixing portion 10 extend along the end surface 2a of the glass plate 2, and the brush support portion 11 is disposed in the direction in which the end surface 2a of the glass plate 2 extends. For example, the fixing portion may be arranged in a ring shape, and the brush support portion may be arranged inside the fixing portion. Alternatively, both the fixing portion and the brush support portion may be arranged in a zigzag shape.
From the viewpoint of further suppressing the deterioration of the quality of the glass plate 2 and further reducing the cost, the occupancy rate of the brush support portion 11 is preferably 5% or more, more preferably 20% or more. On the other hand, the area occupied by the brush support portion 11 is preferably 90% or less, and more preferably 70% or less, from the viewpoint of reliably fixing the glass plate 2 to the fixing portion. Here, the occupation ratio of the brush support portion 11 is a ratio of an area of the brush support portion 11 (an area of the block in which the brush support portion 11 is arranged) to a total area (a total area of all blocks) of the brush support portion 11, the outer fixing portion 9, and the inner fixing portion 10.
In the present embodiment, the brush support portion 11 supported by the brush is used as the support portion for supporting the glass plate 2 by the plurality of elastic members, and the respective bristle groups 16 of the brush constitute the elastic members. For example, instead of the hair set 16, the elastic member of the support portion may be constituted by a rod-shaped member 17 shown in fig. 3, a coil spring-shaped member 18 shown in fig. 4, or a plate-shaped member 19 shown in fig. 5a and 5 b. In order to facilitate understanding of the drawings, only a part of the glass plate 2 and the elastic members 17 to 19 of the support portion are shown in fig. 3 to 5b, and other structures are omitted from the drawings.
When the rod-shaped member 17 and the coil spring-shaped member 18 are used, the lower ends of the members 17 and 18 in the vertical direction (longitudinal direction) are fixed to the flat plate 15 (not shown in fig. 3 and 4), and the upper ends thereof are in contact with the glass plate 2. The members 17 and 18 can be deformed by extending and contracting in the vertical direction by their own force. Here, as the material of the rod-like member 17, for example, sponge, rubber, polyurethane, silicone, NC nylon, or the like can be used. As a material of the coil spring-like member 18, for example, sponge, rubber, polyurethane, silicone, or the like can be used.
When the plate-like member 19 is used, the main surface (front and back surfaces) thereof is arranged parallel to the vertical plane, the lower end surface of the plate-like member 19 is fixed to the flat plate 15 (not shown in fig. 5a and 5 b), and the upper end surface (tip end) thereof abuts against the glass plate 2. The main surface of the plate-like member 19 may be parallel to the arrangement direction as shown in fig. 5a, or may be parallel to the feeding direction as shown in fig. 5 b. The main surface of the plate-like member 19 may be inclined with respect to both the feeding direction and the arrangement direction. A plurality of the plate-like members 19 are arranged in a row along the thickness direction. As shown by the arrows at both ends in fig. 5c, each plate-like member 19 can be deformed so that its upper end surface (tip) is displaced in the thickness direction. Here, as a material of the plate-like member 19, for example, sponge, rubber, polyurethane, silicone, or the like can be used.
When the rod-shaped member 17, the coil spring-shaped member 18, or the plate-shaped member 19 is used, the member deforms accordingly even if glass dust or grinding dust is interposed between the tip (upper end) of the member and the lower surface 2b of the glass plate 2 because these members have elasticity. Therefore, the quality of the glass plate 2 can be prevented from being degraded by the glass powder and the grinding wheel chips.
Description of reference numerals:
1 apparatus for producing glass plate
2 glass plate
2a end face
2b lower surface
3 supporting table
7 grinding wheel
8 symmetry axis
9 outer fixing part (fixing part)
10 inner fixed part (fixed part)
11 brush support
12 bearing surface
13 adsorption hole
14 supply port
17 Bar-shaped member
18 helical spring-like member
19 a plate-like member.
Claims (6)
1. A method for manufacturing a glass plate includes an end face processing step of processing an end face of a glass plate protruding from a support table in a state where the glass plate is fixed to the support table; and a positioning step of moving and positioning the glass plate on the support table before the end face machining step is performed,
the method for manufacturing a glass sheet is characterized in that,
the support table is provided with a fixing portion capable of fixing the glass plate and a support portion for supporting the glass plate by a plurality of elastic members,
the glass plate has a rectangular shape,
in the end face processing step, both end faces of the glass plate extending in parallel to each other are processed,
the support table is provided with a first outer fixing portion and a second outer fixing portion as the fixing portions, the first outer fixing portion and the second outer fixing portion extending along the two end surfaces,
the first outer fixing portion is disposed closer to one of the two end surfaces than the supporting portion, and the second outer fixing portion is disposed closer to the other of the two end surfaces than the supporting portion,
an inner fixing portion disposed between the first outer fixing portion and the second outer fixing portion is provided as the fixing portion on the support base,
the fixing portion has:
an adsorption hole for adsorbing and fixing the lower surface of the glass plate during the end face machining process; and
a supply port for supplying fluid between the fixing portion and the lower surface of the glass plate during the positioning step,
the number of the suction holes of the first outer fixing portion and the second outer fixing portion is larger than the number of the suction holes of the inner fixing portion,
a release step of releasing the fixation of the fixation portion to the glass plate by ejecting gas from the adsorption hole after the end face machining step is performed,
a suction hole row formed by arranging the suction holes in a direction in which the both end surfaces extend, and a supply port row formed by arranging the supply ports in a direction in which the both end surfaces extend, are arranged in the fixing portion,
the adsorption hole row and the supply port row are arranged close to the end face near the fixing portion.
2. The method for producing glass sheet according to claim 1,
the support portion is a brush support portion for supporting the glass plate with a brush.
3. The method for producing glass sheet according to claim 1,
the support portion extends along a direction in which the both end surfaces extend.
4. The method for manufacturing glass plate according to claim 1,
the support table is configured to be symmetrical with respect to a symmetry axis extending parallel to the both end surfaces.
5. A glass plate manufacturing apparatus includes: a support table capable of fixing a rectangular glass plate while supporting the glass plate from below; an end face processing mechanism for processing two end faces of the glass plate fixed on the supporting table, extending from the supporting table and parallel to each other; and a positioning mechanism for moving and positioning the glass plate on the support table before fixing,
the apparatus for manufacturing a glass sheet is characterized in that,
the support table has a fixing portion capable of fixing the glass plate and a support portion for supporting the glass plate by a plurality of elastic members,
the support table is provided with a first outer fixing portion and a second outer fixing portion as the fixing portions, the first outer fixing portion and the second outer fixing portion extending along the both end surfaces,
the first outer fixing portion is disposed closer to one of the two end surfaces than the supporting portion, and the second outer fixing portion is disposed closer to the other of the two end surfaces than the supporting portion,
an inner fixing portion disposed between the first outer fixing portion and the second outer fixing portion is provided as the fixing portion on the support base,
the fixing portion has:
an adsorption hole for adsorbing and fixing the lower surface of the glass plate when the end face machining means machines the two end faces; and
a supply port for supplying a fluid between the fixing portion and the lower surface of the glass plate when the positioning mechanism positions the glass plate,
the number of the suction holes of the first outer fixing portion and the second outer fixing portion is larger than the number of the suction holes of the inner fixing portion,
the glass plate manufacturing apparatus further includes a releasing mechanism for releasing the fixing of the fixing portion to the glass plate by ejecting gas from the adsorption hole,
a suction hole row formed by arranging the suction holes in a direction in which the both end surfaces extend, and a supply port row formed by arranging the supply ports in a direction in which the both end surfaces extend, are arranged in the fixing portion,
the adsorption hole row and the supply port row are arranged close to the end face near the fixing portion.
6. The glass-sheet manufacturing apparatus according to claim 5,
the support portion is a brush support portion for supporting the glass plate with a brush.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2017-083590 | 2017-04-20 | ||
| JP2017083590 | 2017-04-20 | ||
| PCT/JP2018/015706 WO2018194022A1 (en) | 2017-04-20 | 2018-04-16 | Glass plate production method and production apparatus |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110430971A CN110430971A (en) | 2019-11-08 |
| CN110430971B true CN110430971B (en) | 2022-08-30 |
Family
ID=63856583
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201880019523.7A Active CN110430971B (en) | 2017-04-20 | 2018-04-16 | Method and apparatus for manufacturing glass plate |
Country Status (5)
| Country | Link |
|---|---|
| JP (1) | JP7046319B2 (en) |
| KR (1) | KR102475075B1 (en) |
| CN (1) | CN110430971B (en) |
| TW (1) | TWI762620B (en) |
| WO (1) | WO2018194022A1 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114559366A (en) * | 2022-02-22 | 2022-05-31 | 郑州旭飞光电科技有限公司 | Precise positioning device for flat panel display glass before grinding |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4756295B2 (en) * | 2000-11-09 | 2011-08-24 | 日本電気硝子株式会社 | Adsorption holding device and adsorption holding method for glass plate |
| TW200614412A (en) * | 2004-09-27 | 2006-05-01 | Olympus Corp | Macroscopic inspection apparatus and macroscopic inspection method |
| JP4270142B2 (en) * | 2005-03-09 | 2009-05-27 | 日本電気硝子株式会社 | Method and apparatus for manufacturing glass substrate |
| JP2007038369A (en) * | 2005-08-05 | 2007-02-15 | Central Glass Co Ltd | Glass plate end face machining device |
| JP2008273687A (en) * | 2007-04-27 | 2008-11-13 | Dainippon Printing Co Ltd | Conveying device for flat plate-like base |
| JP5397840B2 (en) | 2011-10-21 | 2014-01-22 | 日本電気硝子株式会社 | Glass substrate positioning device, positioning method, end surface grinding device, and end surface grinding method |
| JP5912642B2 (en) * | 2012-02-20 | 2016-04-27 | 日本電気硝子株式会社 | Glass plate conveying apparatus and conveying method thereof |
| CN203062552U (en) * | 2012-10-30 | 2013-07-17 | 技高工业股份有限公司 | Adsorption stage |
| JP6514542B2 (en) * | 2015-03-26 | 2019-05-15 | ＡｖａｎＳｔｒａｔｅ株式会社 | Method of manufacturing glass substrate |
| WO2017007782A1 (en) * | 2015-07-08 | 2017-01-12 | Corning Incorporated | Glass substrate support apparatuses and methods of providing flexible glass substrate support |
-
2018
- 2018-04-16 KR KR1020197020010A patent/KR102475075B1/en active Active
- 2018-04-16 WO PCT/JP2018/015706 patent/WO2018194022A1/en active Application Filing
- 2018-04-16 CN CN201880019523.7A patent/CN110430971B/en active Active
- 2018-04-16 JP JP2019513629A patent/JP7046319B2/en active Active
- 2018-04-18 TW TW107113148A patent/TWI762620B/en active
Also Published As
| Publication number | Publication date |
|---|---|
| JP7046319B2 (en) | 2022-04-04 |
| KR102475075B1 (en) | 2022-12-07 |
| WO2018194022A1 (en) | 2018-10-25 |
| TWI762620B (en) | 2022-05-01 |
| KR20190142312A (en) | 2019-12-26 |
| JPWO2018194022A1 (en) | 2020-02-27 |
| CN110430971A (en) | 2019-11-08 |
| TW201841802A (en) | 2018-12-01 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| TWI532663B (en) | Device and method for buffer-storing a multiplicity of wafer-type workpieces | |
| TWI554461B (en) | Conveying device for glass plate and conveying method thereof | |
| TWI483301B (en) | A grinding device for corner columnar members | |
| JP5889471B1 (en) | Surface treatment equipment | |
| JP7034147B2 (en) | Machine loading / unloading equipment, plate workpiece machining machines and workpiece supports of the machine, and loading and unloading methods of the machine. | |
| JP5399690B2 (en) | Cutting device | |
| CN107030902B (en) | Cutting device | |
| CN110430971B (en) | Method and apparatus for manufacturing glass plate | |
| JP2018522810A (en) | Method and apparatus for edge finishing glass substrates | |
| TWI729010B (en) | Fixed abrasive grain wire saw and method for dressing fixed abrasive grain wire | |
| KR100936622B1 (en) | Rotary Lapping Device with Film | |
| CN114589821B (en) | Cutting and grinding manufacturing island and cutting and grinding method thereof | |
| CN112276741A (en) | Magnetic suction quick feeding device | |
| CN210115769U (en) | Chamfer grinding device | |
| JP2014188650A (en) | Wire saw and processing method of using wire saw | |
| CN223160618U (en) | A multi-head polishing device for furnace roller body | |
| KR101675220B1 (en) | Grinding device of ferrite magnetic for motor | |
| KR102452209B1 (en) | Dressing method | |
| KR20140133497A (en) | Polishing pad and polishing apparatus | |
| JP5517722B2 (en) | Bottle body rotation mechanism of abrasive spray processing equipment | |
| KR20250080349A (en) | Substrate polishing apparatus and shuttle used therein | |
| KR20250051775A (en) | Modular chemical mechanical polisher with simultaneous polishing and pad treatment | |
| KR100431922B1 (en) | Polishing apparatus | |
| KR20250076840A (en) | Substrate polishing apparatus | |
| KR20220102101A (en) | Assistant device |
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 |