WO2009118959A1 - Procédé de découpe d'une plaque en verre et dispositif de découpe d'une plaque en verre - Google Patents

Procédé de découpe d'une plaque en verre et dispositif de découpe d'une plaque en verre Download PDF

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Publication number
WO2009118959A1
WO2009118959A1 PCT/JP2008/072091 JP2008072091W WO2009118959A1 WO 2009118959 A1 WO2009118959 A1 WO 2009118959A1 JP 2008072091 W JP2008072091 W JP 2008072091W WO 2009118959 A1 WO2009118959 A1 WO 2009118959A1
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WO
WIPO (PCT)
Prior art keywords
glass plate
region
support means
support
scribe
Prior art date
Application number
PCT/JP2008/072091
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English (en)
Japanese (ja)
Inventor
勢津夫 内田
Original Assignee
日本電気硝子株式会社
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by 日本電気硝子株式会社 filed Critical 日本電気硝子株式会社
Priority to CN200880123590.XA priority Critical patent/CN101910075B/zh
Priority to KR1020107007530A priority patent/KR101462976B1/ko
Publication of WO2009118959A1 publication Critical patent/WO2009118959A1/fr

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B33/00—Severing cooled glass
    • C03B33/02—Cutting or splitting sheet glass or ribbons; Apparatus or machines therefor
    • C03B33/023—Cutting or splitting sheet glass or ribbons; Apparatus or machines therefor the sheet or ribbon being in a horizontal position
    • C03B33/033—Apparatus for opening score lines in glass sheets
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B33/00—Severing cooled glass
    • C03B33/02—Cutting or splitting sheet glass or ribbons; Apparatus or machines therefor
    • C03B33/023—Cutting or splitting sheet glass or ribbons; Apparatus or machines therefor the sheet or ribbon being in a horizontal position
    • C03B33/03—Glass cutting tables; Apparatus for transporting or handling sheet glass during the cutting or breaking operations
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
    • B65G2249/00—Aspects relating to conveying systems for the manufacture of fragile sheets
    • B65G2249/04—Arrangements of vacuum systems or suction cups

Definitions

  • the present invention relates to a glass plate folding method and a glass plate breaking device, and more specifically, a state in which a scribing is put on the surface of the glass plate and one side region of the glass plate is supported on a flat surface of the supporting means.
  • the present invention relates to a glass plate splitting method and a splitting device that apply an external force to the other side region and divide the glass plate with the scribe as a starting point.
  • various glass plates represented by glass substrates for flat panel displays such as liquid crystal displays, plasma displays, electroluminescence displays, and field emission displays are cut to the required size according to the application after molding. It is customary.
  • a scribing ruled line
  • a scribing is engraved on the surface of the glass plate with a diamond cutter or a laser in accordance with the required size, and the glass plate is folded along the scribe. The split method has been frequently used.
  • This splitting method not only divides the glass sheet into two areas (two necessary parts) that will be products in the future, but also separates the glass sheet into one necessary part and a small unnecessary part at the end. It is also used when dividing.
  • a necessary part (first region) 10 ⁇ / b> A of the glass plate 10 in which the scribe S ⁇ b> 1 is put (engraved) on the surface side. Is supported from the back side by the support means 20 comprising the support member 20a and the support jig 20b, and an unnecessary portion protruding from one end 20X of the support means 20 (the contact end 20bx of the support jig 20b to the glass plate 10).
  • (Second region) 10B is pushed down from the surface side by the pushing jig 40, so that the cutting is performed with the scribe S1 as a starting point.
  • the engraved position of the scribe S1 on the surface of the glass plate 10 coincides with the one end 20X of the support means 20.
  • a glass plate with a cut line (scribe) ruled on the upper surface is placed on a mounting table or a conveying means (support member). From the bottom of the projection of the glass plate, the lower support means (support jig) is raised and brought into contact with the lower surface of the glass plate along the scribe, and from the scribe of the glass plate.
  • a method is disclosed in which a glass plate is cut and cut along a scribe by lowering an upper pressing means (a pressing jig) from above to contact and pressing the protruding end side.
  • the edge of the glass plate having a scoring line (scribe) on the upper surface is projected from the edge of the table (support member), and the glass plate is scribed on the table.
  • a method is disclosed in which the glass plate is broken and cut by raising the edge side of the glass plate from the scribe above the table.
  • the folding method disclosed in the above-mentioned Patent Documents 1, 2, and 3 is based on the basic principle that a glass plate is scribed and stress concentration due to tensile stress is applied to the median crack of the scribe. Therefore, it is presumed that the point of avoiding the occurrence of “hame chipping” among the above-mentioned defects can be expected.
  • the present inventors have confirmed that the occurrence of “chip”, “corner”, “escape”, and “sag” cannot be avoided even by the folding method disclosed in each of these documents. It came to do.
  • the projection 10AX of one glass plate 10A can be excised in the end surface polishing step, but has a drawback that it takes a long time for end surface polishing, and the other glass
  • the missing portion 10BX of the plate 10B cannot be completely removed even if the end face polishing process is performed, and a fatal problem in terms of quality arises in that a part remains.
  • the reason for the occurrence of “sagging” is that the position where the external force from the pushing jig or the like acts on the protruding portion of the glass plate supported by protruding from the one end by the support means is not appropriate.
  • the present inventors have come to know that the bending moment does not act evenly in the vicinity of both sides. In other words, when the median crack of the scribe advances in the thickness direction of the glass plate due to the bending moment, the balance of the stress acting on both sides of the median crack is distorted, and the straightness of the median crack in the thickness direction is hindered. I came to get the knowledge.
  • the present invention appropriately sets the positional relationship between an external force acting on a glass plate on which a scribe is inserted at the time of splitting, a supporting means for supporting the glass plate, and a fixing means for fixing the glass plate to the supporting means. Therefore, it is an object of the present invention to provide a glass plate breaking method and a glass plate breaking device in which an unjustified defect does not occur at the cut end.
  • the inventor has protruded from one end of the support means for supporting the glass plate on which the scribe is put, one end of the fixing means for fixing the glass plate to the support means, and one end of the support means. If the positional relationship with the point of application of external force to the glass plate part that satisfies the specified condition, it will be found that no undue defects will occur at the cut edge of the glass plate after splitting. Based on this, the present invention has been completed.
  • the method according to the present invention which was created to solve the above technical problem, includes scribing the surface side of the boundary between the first region and the second region of the glass plate, A part or all of the first region of the glass plate is supported by the support means, and when the support is supported, part or all of the second region of the glass plate is projected from one end of the support means and the scribe is supported. An external force is applied to the second region of the glass plate from the surface side in a state where the glass plate is positioned around one end of the device and the first region of the glass plate is fixed to the support device by the fixing device.
  • the position where an external force is applied to the second region of the glass plate is the force point, and one end of the fixing means existing on one end side of the support means is the fixed end.
  • a distance A from the power point to one end of the support means and a distance B from the fixed end to one end of the support means satisfy the relationship of 1.3 ⁇ B / A ⁇ 1.7. .
  • the distance B is longer than the distance A by a predetermined length on the basis of one end of the support means.
  • the end of the support means is placed at the center between the fixed end and the force point.
  • a phenomenon occurs in which stress is evenly generated on the fixed end side and the force point side of the glass plate around the one end of the support means.
  • the stress (or bending moment) generated on both sides of the scribe is also equalized, and at the cut end of the glass plate after folding. Inappropriate disadvantages, especially the above-mentioned “baldness” are less likely to occur.
  • the support means may be a support member having a support surface, and one end of the support means may be one end of the support member having the support surface.
  • the support means can be constituted only by a support member having a support surface such as a support table or a conveyer, and the number of parts of the folding device can be reduced, and the configuration can be simplified. It becomes possible.
  • the support means includes a support member having a support surface and a support jig disposed apart from the support member, and one end of the support means is applied to the glass plate of the support jig. It may be a close end.
  • the distance that the scribe is biased from one end of the support means toward the force point and the distance that the scribe is biased toward the fixed end are both within 40% of the distance A.
  • the scribing of the glass plate can be broken without causing an unjustified defect such as the above-mentioned “bending” at the cut end without matching the position with one end of the supporting means.
  • the first region of the glass plate is a necessary part and the second region is an unnecessary part.
  • “necessary part” means a part to be a product in the future, and “unnecessary part” means a part to be disposed of.
  • the glass plate has two orthogonal sides of 1000 mm or more and a thickness of 3 mm or less, and the unnecessary portion is a region having a width of 20 to 50 mm along one side.
  • the fixing means may be a negative pressure suction means for generating a negative pressure suction force on the surface side of the support means, or arranged on the surface side of the glass plate so as to attach the glass plate to the support means. It is also possible to use a holding jig that is pressed against and extends in a direction parallel to the scribe.
  • the fixing means for fixing the glass plate to the supporting means is not particularly limited as long as it plays its role. Is advantageous.
  • the means for applying an external force to the second region of the glass plate may be a pushing jig arranged on the surface side of the glass plate and extending in a direction parallel to the scribe.
  • the means for applying an external force to the second region of the glass plate is not particularly limited including the directionality to which the external force is applied, but if it is as described above, more reliable folding is performed. This is advantageous.
  • the glass plate which is the target of the splitting method having the above configuration can be a glass substrate for a flat panel display.
  • an apparatus which was created to solve the above technical problem, has a scribe on the surface side of the boundary between the first region and the second region of the glass plate, and the first region of the glass plate.
  • a part or the whole of the glass plate is supported by the support means, and when the support is supported, a part or the whole of the second region of the glass plate is protruded from one end of the support means and the scribe is provided around one end of the support means.
  • the fixing means by applying an external force from the surface side to the second region of the glass plate in a state where the first region of the glass plate is fixed to a part of the support means by the fixing means.
  • the glass plate splitting apparatus configured to divide the scribe as a starting point, a position where an external force is applied to the second region of the glass plate is a force point, and one end of the fixing means existing on one end side of the support means is fixed.
  • the distance A from the power point to one end of the support means and the distance B from the fixed end to one end of the support means satisfy the relationship of 1.3 ⁇ B / A ⁇ 1.7. It is characterized by being configured to satisfy.
  • the present invention by fixing one end of the support means in an appropriate direction from the center position between the fixed end and the force point, the fixed end side and the force point side of the glass plate around the one end of the support means.
  • the stress generated evenly on both sides of the scribing of the glass plate existing around one end of the supporting means is also equalized, which is an unjustified defect at the cut end of the glass plate after folding. In particular, it becomes difficult to produce “baldness”.
  • a glass plate is a glass substrate for flat panel displays, especially a glass substrate used for a liquid crystal display or a plasma display is illustrated.
  • FIG. 1 is a schematic longitudinal side view showing a glass sheet folding apparatus (implementation status of a glass sheet breaking method) according to the first embodiment of the present invention
  • FIG. 2 is a schematic perspective view thereof
  • the scribe S is put on the surface side of the boundary portion between the first region 1A that is a necessary portion of the glass plate 1 and the second region 1B that is an unnecessary portion.
  • the first region 1A of the glass plate 1 is supported on the surface of a support member (support means) 2 having a support surface made of a support plate or a conveyor, and in the supported state, the second region 1B of the glass plate 1 is supported.
  • a holding jig 3 as a fixing means for fixing a part of the first region 1 ⁇ / b> A of the glass plate 1 to the support member 2 is disposed.
  • a pressing jig (folding jig) 4 for applying an external force to the back surface side of the second region 1B is disposed.
  • the glass plate 1 has a substantially rectangular shape, two orthogonal sides are each 1000 mm or more and a thickness is 3 mm or less, and the second region 1B is on one side (side parallel to the scribe S).
  • the area is 20 to 50 mm wide.
  • the pressing jig 3 extends in a direction parallel to the scribe S to press the first region 1A of the glass plate 1 over the entire length in the same direction, and the pressing jig 4 is parallel to the scribe S.
  • An external force is applied to the second region 1B of the glass plate 1 over the entire length in the same direction.
  • the pressing jig is inserted into the second region 1 ⁇ / b> B of the glass plate 1.
  • the position where the pressing jig 4 applies an external force to the second region 1B of the glass plate 1 is the force point 4X, and one end (right end) of the pressing jig 3 existing on the one end 2X side of the support member 3 is the fixed end 3X.
  • the distance A from the force point 4X to the one end 2X of the support member 2 and the distance B from the fixed end 3X to the one end 2X of the support member 2 satisfy the relationship of 1.3 ⁇ B / A ⁇ 1.7. Is set to
  • the one end 2X of the support member 2 is biased toward the force point 4X side from the center position of the fixed end 3X and the force point 4X. Stress is uniformly generated on the fixed end 3X side and the power point 4X side of the glass plate 1 around the one end 2X. Since the scribe S is present immediately above the one end 2X of the support member 2, the stresses generated on both sides of the scribe S are also equalized, and the pushing jig 4 is pushed downward (vertically downward). An unjustified defect, in particular, the above-mentioned “sagging” hardly occurs at the cut end portion of the glass plate 1 after the accompanying folding.
  • the scribe S engraved on the glass plate 1 does not necessarily have to be positioned immediately above the one end 2X of the support member 2 as shown in the drawing, and is within a range of 40% of the distance A described above. If there is, the scribe S is such that even if the support member 2 is deviated from the one end 2X to the fixed end 3X side or the force point 4X side, an unjustified defect is not generated at the cut end portion of the glass plate 1 after breaking. Stress is generated evenly on both sides of the.
  • FIG. 3 is a schematic longitudinal sectional side view showing a glass sheet breaking apparatus (implementation status of the glass sheet breaking method) according to the second embodiment of the present invention.
  • the glass plate folding apparatus according to the second embodiment is different from the first embodiment described above in that the fixing means for fixing the glass plate 1 to the support member 2 is a negative pressure suction force on the surface side of the support member 2. It is a point comprised by the negative pressure suction means 5 which generate
  • This negative pressure suction means 5 is mainly composed of a large number of through holes 5a formed in the support member 2 and a negative pressure source device (not shown) for evacuating through these through holes 5a.
  • one end (right end) of the negative pressure suction means 5 existing on the one end 2X side of the support member 2 becomes the fixed end 5X, and the distance A from the force point 4X to the one end 2X of the support member 2 and the fixed end 5X. Is set so as to satisfy the relationship of 1.3 ⁇ B / A ⁇ 1.7. Since the other configuration is the same as that of the first embodiment described above, the same reference numerals are given to the common components, and the description thereof is omitted.
  • FIG. 4 is a schematic longitudinal side view showing a glass plate breaking apparatus (implementation status of the glass plate breaking method) according to the third embodiment of the present invention.
  • the glass plate folding apparatus according to the third embodiment is different from the first embodiment described above in that a pressing jig (folding jig) 4 for applying an external force to the second region 1B of the glass plate 1 is A jig having a U-shaped cross section that sandwiches the edge (right edge) of the second region 1B, and the pushing jig 4 rotates downward with the one end 2X of the support member 2 as a fulcrum (pushing jig) 4 may be configured to descend vertically downward).
  • the contact point between the left end portion of the pushing jig 4 and the surface of the second region 1B of the glass plate 1 serves as a force point 4X.
  • the distance A to 2X and the distance B from the fixed end 3X to the one end 2X of the support member 2 are set so as to satisfy the relationship of 1.3 ⁇ B / A ⁇ 1.7. Since the other configuration is the same as that of the first embodiment described above, the same reference numerals are given to the common components, and the description thereof is omitted.
  • the fixing means may be a negative pressure suction means as in the second embodiment.
  • FIG. 5 is a schematic longitudinal sectional side view showing a glass sheet breaking apparatus (implementation status of the glass sheet breaking method) according to the fourth embodiment of the present invention.
  • the glass plate folding apparatus according to the fourth embodiment is different from the first embodiment described above in that the support means 2 for supporting the glass plate 1 from the back side has a support surface made of a support plate or a conveyor.
  • the support member 2a has a support member 2a, and a support jig 2b that is disposed to the right from one end 2ax of the support member 2a and that has a tip abutting against the back surface of the glass plate 1.
  • the contact end 2bx of the support jig 2b to the back surface of the glass plate 1 corresponds to one end 2X of the support means 2, and the distance A from the force point 4X to the one end 2X of the support means 2
  • the distance B from the fixed end 3X to the one end 2X of the support means 2 is set so as to satisfy the relationship of 1.3 ⁇ B / A ⁇ 1.7. Since the other configuration is the same as that of the first embodiment described above, the same reference numerals are given to the common components, and the description thereof is omitted.
  • the fixing means may be a negative pressure suction means as in the second embodiment described above.
  • positioning the scribe S of the glass plate 1 directly above the one end 2X of the support member (support means) 2 is performed by a predetermined positioning device or manually, but the alignment is surely performed.
  • the apparatus becomes complicated, expensive, and complicated, which causes inconvenience. Therefore, in the embodiment shown in FIG. 1, the fixed end 3X, the one end 2X of the support member 2 and the force point 4X are maintained at fixed positions that satisfy the above numerical limitation, and the position of the scribe S is set to the support member 2.
  • An experiment was conducted to bias the one end 2X from the one end 2X toward the fixed end 3X and the force point 4X.
  • the distance A was 50 mm
  • the distance B was 75 mm
  • the thickness of the glass plate 1 was 0.7 mm.
  • Table 3 the sign “+” in the column of the amount of deviation from the end of the support member (the amount of deviation from the one end 2X of the support member 2) is the state where the scribe S is biased toward the force point 4X
  • the sign “-” Indicates a state of being deviated toward the fixed end 3X side
  • “ ⁇ ” and “ ⁇ ” in the column of the occurrence state of the bending indicate the same items as in Table 1 above.

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Re-Forming, After-Treatment, Cutting And Transporting Of Glass Products (AREA)
  • Liquid Crystal (AREA)

Abstract

Cette invention concerne un procédé de découpe d'une plaque en verre. Quand une plaque en verre (1) est divisée le long d'un scribe (S) servant de point de départ par production de la surface avant de la plaque en verre (1) avec le scribe (S), la plaque en verre (1) étant supportée par un moyen de support (2) de telle manière que le scribe (S) se situe à proximité d'une extrémité (2X) du moyen de support (2) et que la plaque en verre se projette au-delà de ladite extrémité (2X) du moyen de support (2), puis application d'une force externe sur la partie projetée de la plaque en verre (1), alors que la plaque en verre (1) est fixée au moyen de support (2) par un moyen de fixation (3), la relation suivante : 1,3 ≤ B/A ≤ 1,7 est satisfaite, à supposer que la position à laquelle une force externe est appliquée à la plaque en verre (1) soit un point de force (4X), une extrémité du moyen de fixation (3) existant du côté de ladite extrémité (2X) du moyen de support (2) est une extrémité fixe (3X), la distance depuis le point de force (4X) jusqu'à ladite extrémité (2X) du moyen de support (2) est (A), et la distance depuis l'extrémité fixe (3X) jusqu'à ladite extrémité (2X) du moyen de support (2) est (B).
PCT/JP2008/072091 2008-03-25 2008-12-04 Procédé de découpe d'une plaque en verre et dispositif de découpe d'une plaque en verre WO2009118959A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CN200880123590.XA CN101910075B (zh) 2008-03-25 2008-12-04 玻璃板折断方法及玻璃板折断装置
KR1020107007530A KR101462976B1 (ko) 2008-03-25 2008-12-04 유리판 브레이킹 방법 및 유리판 브레이킹 장치

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2008-078231 2008-03-25
JP2008078231A JP5376282B2 (ja) 2008-03-25 2008-03-25 ガラス板折割方法及びガラス板折割装置

Publications (1)

Publication Number Publication Date
WO2009118959A1 true WO2009118959A1 (fr) 2009-10-01

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PCT/JP2008/072091 WO2009118959A1 (fr) 2008-03-25 2008-12-04 Procédé de découpe d'une plaque en verre et dispositif de découpe d'une plaque en verre

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Country Link
JP (1) JP5376282B2 (fr)
KR (1) KR101462976B1 (fr)
CN (1) CN101910075B (fr)
TW (1) TWI434813B (fr)
WO (1) WO2009118959A1 (fr)

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CN106040920A (zh) * 2016-08-22 2016-10-26 陶胜治 弹簧钢丝自动卷簧机应力折断工艺
BE1024350B1 (nl) * 2016-06-29 2018-02-05 C-Mac Electromag Bvba Geautomatiseerd systeem voor het singuleren van schakelingen uit DBC-substraten, en werkwijze daarvoor
US20200048135A1 (en) * 2016-10-10 2020-02-13 South China University Of Technology Method for micro-grinding tip-accurately induced brittle fracture forming of curved mirror surface
WO2023195189A1 (fr) * 2022-04-08 2023-10-12 坂東機工株式会社 Système de pliage et fracture, et procédé d'usinage par pliage et fracture
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WO2012108391A1 (fr) * 2011-02-09 2012-08-16 旭硝子株式会社 Procédé de découpe de plaque de verre et dispositif de découpe de plaque de verre
JP2012201573A (ja) * 2011-03-28 2012-10-22 Asahi Glass Co Ltd 脆性板の切断装置および切断方法
JP5210409B2 (ja) * 2011-04-06 2013-06-12 三星ダイヤモンド工業株式会社 ブレイク装置
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CN104066694B (zh) * 2012-07-27 2016-07-06 日本电气硝子株式会社 玻璃板、玻璃板的制造方法及玻璃板的制造装置
US9028296B2 (en) * 2012-08-30 2015-05-12 Corning Incorporated Glass sheets and methods of shaping glass sheets
WO2015098598A1 (fr) * 2013-12-27 2015-07-02 旭硝子株式会社 Procédé de traitement de plaque cassante et dispositif de traitement de plaque cassante
WO2015098595A1 (fr) * 2013-12-27 2015-07-02 旭硝子株式会社 Procédé et dispositif de traitement de plaque cassante
JP6716900B2 (ja) * 2015-12-04 2020-07-01 三星ダイヤモンド工業株式会社 分断装置
JP6628032B2 (ja) * 2015-12-21 2020-01-08 日本電気硝子株式会社 ガラス板の製造装置
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CN106396356B (zh) * 2016-05-27 2019-07-16 苏州微米光学科技有限公司 锯齿结构玻璃制作装置
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CN105837021B (zh) * 2016-05-27 2019-09-06 杨聪 条形光学玻璃逐步裂解装置
JP2018058353A (ja) * 2016-09-30 2018-04-12 坂東機工株式会社 折割分断方法及び折割分断装置
CN107879615A (zh) * 2016-09-30 2018-04-06 坂东机工株式会社 折断分离方法及折断分离装置
JP6410157B2 (ja) * 2017-02-28 2018-10-24 三星ダイヤモンド工業株式会社 貼り合わせ基板の加工装置
CN112119045A (zh) * 2018-05-14 2020-12-22 康宁公司 用于处理玻璃片的装置和方法
CN108503209B (zh) * 2018-07-03 2020-12-01 常州大学 一种玻璃快速折断机

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WO2023195189A1 (fr) * 2022-04-08 2023-10-12 坂東機工株式会社 Système de pliage et fracture, et procédé d'usinage par pliage et fracture
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