JP6838373B2 - Plate glass manufacturing method and plate glass folding device - Google Patents

Plate glass manufacturing method and plate glass folding device Download PDF

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JP6838373B2
JP6838373B2 JP2016235079A JP2016235079A JP6838373B2 JP 6838373 B2 JP6838373 B2 JP 6838373B2 JP 2016235079 A JP2016235079 A JP 2016235079A JP 2016235079 A JP2016235079 A JP 2016235079A JP 6838373 B2 JP6838373 B2 JP 6838373B2
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main surface
product part
scribe line
pressing member
flat glass
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JP2018090445A (en
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隼人 奥
隼人 奥
輝好 田中
輝好 田中
広之 中津
広之 中津
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Nippon Electric Glass Co Ltd
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Nippon Electric Glass Co Ltd
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Priority to JP2016235079A priority Critical patent/JP6838373B2/en
Priority to KR1020197013657A priority patent/KR102449385B1/en
Priority to PCT/JP2017/040070 priority patent/WO2018100978A1/en
Priority to CN201780074248.4A priority patent/CN110023255B/en
Priority to TW106140190A priority patent/TWI725257B/en
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    • 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
    • B28—WORKING CEMENT, CLAY, OR STONE
    • B28D—WORKING STONE OR STONE-LIKE MATERIALS
    • B28D5/00—Fine working of gems, jewels, crystals, e.g. of semiconductor material; apparatus or devices therefor
    • 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

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Mechanical Engineering (AREA)
  • Re-Forming, After-Treatment, Cutting And Transporting Of Glass Products (AREA)
  • Processing Of Stones Or Stones Resemblance Materials (AREA)
  • Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)

Description

本発明は、板ガラスの製造方法及び板ガラスの折割装置に関する。 The present invention relates to a method for producing flat glass and a flat glass folding device.

周知のように、液晶ディスプレイ、プラズマディスプレイ、有機ＥＬディスプレイなどのフラットパネルディスプレイ（ＦＰＤ）用のガラス基板や、有機ＥＬ照明用のカバーガラスに代表されるように、各種分野で板ガラスが利用される。板ガラスの製造工程では、大面積の板ガラス（マザーガラス）から小面積の板ガラスを切り出したり、板ガラスの辺に沿う縁部をトリミングしたりする折割（割断）工程が含まれる。 As is well known, flat glass is used in various fields as represented by glass substrates for flat panel displays (FPDs) such as liquid crystal displays, plasma displays, and organic EL displays, and cover glasses for organic EL lighting. .. The plate glass manufacturing process includes a folding (cutting) step of cutting out a small area plate glass from a large area plate glass (mother glass) and trimming the edge along the side of the plate glass.

折割工程では、折り割る対象となる板ガラスの製品部と非製品部との境界において、板ガラスの第一主面（例えば上面）にスクライブ線を形成した後、そのスクライブ線を中心とした曲げ応力を作用させて板ガラスをスクライブ線に沿って折り割る。 In the folding process, a scribe line is formed on the first main surface (for example, the upper surface) of the plate glass at the boundary between the product part and the non-product part of the plate glass to be folded, and then the bending stress centered on the scribe line. Fold the flat glass along the scribe line.

詳細には、例えば特許文献１には、上面にスクライブ線が形成された板ガラスの非製品部となる縁部（耳部と称される場合もある）の上面を上部押圧バーで押圧した状態で、スクライブ線に対応した位置で板ガラスの下面を下部押圧バーで上方に押し上げて、板ガラスをスクライブ線に沿って折り割ることが開示されている。上部押圧バーの下面には、平面状のゴムシートを貼着することが記載されている。 Specifically, for example, in Patent Document 1, a state in which the upper surface of an edge portion (sometimes referred to as an ear portion), which is a non-product portion of a flat glass having a scribe line formed on the upper surface, is pressed by an upper pressing bar. , It is disclosed that the lower surface of the plate glass is pushed upward by the lower pressing bar at a position corresponding to the scribe line, and the plate glass is folded along the scribe line. It is described that a flat rubber sheet is attached to the lower surface of the upper pressing bar.

特開２００７−９９５６３号公報Japanese Unexamined Patent Publication No. 2007-99563

しかしながら、特許文献１に開示のように、スクライブ線を中心とした曲げ応力を作用させる際に、非製品部の上面のみを押圧する場合、製品部の上面の保持力が弱く、板ガラスをスクライブ線に沿って正確に折り割ることができない場合がある。特に板ガラスが薄く可撓性に富む場合に、このような問題は顕著になる。ここで、非製品部と同様に、製品部の上面をゴムシートで押圧することも考えられるが、製品部が汚れたり傷ついたりするおそれがある。 However, as disclosed in Patent Document 1, when only the upper surface of the non-product portion is pressed when bending stress centered on the scribe wire is applied, the holding force of the upper surface of the product portion is weak, and the flat glass is scribed. It may not be possible to fold it exactly along the line. Such a problem becomes remarkable especially when the flat glass is thin and highly flexible. Here, it is conceivable to press the upper surface of the product part with a rubber sheet as in the case of the non-product part, but the product part may be soiled or damaged.

また、特許文献１に開示のように、平面状のゴムシートで非製品部の上面を押圧する場合、板ガラスの種類などが変わって非製品部の大きさ（スクライブ線と直交する方向の幅）が変わると、ゴムシートの角部が非製品部の上面に片当たりし、押圧状態が不安定になりやすい。そのため、非製品部の大きさに応じて、非製品部の上面を押圧する位置を調整する必要があるが、その調整作業には時間を要する。その間、板ガラスを折り割ることはできないので製造効率が悪くなるという問題がある。 Further, as disclosed in Patent Document 1, when the upper surface of the non-product portion is pressed with a flat rubber sheet, the type of flat glass or the like changes and the size of the non-product portion (width in the direction orthogonal to the scribe line). When is changed, the corner portion of the rubber sheet hits the upper surface of the non-product portion, and the pressed state tends to become unstable. Therefore, it is necessary to adjust the position of pressing the upper surface of the non-product part according to the size of the non-product part, but the adjustment work takes time. During that time, since the flat glass cannot be broken, there is a problem that the manufacturing efficiency deteriorates.

本発明は、製品部の汚れや傷を防止しつつ、非製品部の大きさが変わっても板ガラスをスクライブ線に沿って効率よく確実に折り割ることを課題とする。 An object of the present invention is to efficiently and surely fold a flat glass along a scribe line even if the size of a non-product part changes, while preventing stains and scratches on the product part.

上記課題を解決するために創案された本発明は、第一主面に形成されたスクライブ線を境界とする製品部及び非製品部を有する板ガラスのうち、製品部の第一主面を第一押圧部材で押圧し、非製品部の第一主面を第二押圧部材で押圧した状態で、スクライブ線に対応する位置で、折割部材で板ガラスの第二主面を第一主面側に押し込んで、スクライブ線に沿って板ガラスを折り割る折割工程を備えた板ガラスの製造方法であって、第一押圧部材は、ブラシ状部材からなり、第二押圧部材は、少なくとも第一主面と対向する面が凸曲面をなす弾性部材からなることを特徴とする。このような構成によれば、製品部の第一主面はブラシ状部材からなる第一押圧部材で補助的に押圧される。また、ブラシ状部材であるので、製品部との接触状態がソフトになり、製品部に不要な汚れや傷もつきにくい。一方、非製品部の第一主面は弾性部材からなる第二押圧部材でしっかりと押圧される。そのため、板ガラスの第一主面全体で見た場合、十分な押圧力を作用させることできる。したがって、折割部材を押し込む際に、スクライブ線を中心とした曲げ応力を十分に作用させ、板ガラスをスクライブ線に沿って確実に折り割ることができる。また、第二押圧部材は第一主面と対向する面が凸曲面であるので、第二押圧部材と非製品部の第一主面との接触位置が変わっても押圧状態が不安定になりにくい。したがって、板ガラスの種類などの変更によって非製品部の大きさが変わった場合であっても、第二押圧部材の位置を調整しなくて済む。 In the present invention, which was devised to solve the above problems, the first main surface of the product part is the first among the flat glass having the product part and the non-product part having the scribe line formed on the first main surface as a boundary. With the pressing member pressing and pressing the first main surface of the non-product part with the second pressing member, the second main surface of the flat glass is moved to the first main surface side by the folding member at the position corresponding to the scribe line. A method for manufacturing a plate glass including a folding step of pushing in and folding the plate glass along a scribe line. The first pressing member is composed of a brush-like member, and the second pressing member is at least the first main surface. It is characterized in that the facing surfaces are made of an elastic member having a convex curved surface. According to such a configuration, the first main surface of the product part is auxiliary pressed by the first pressing member made of a brush-like member. In addition, since it is a brush-like member, the contact state with the product part becomes soft, and unnecessary dirt and scratches are not easily attached to the product part. On the other hand, the first main surface of the non-product part is firmly pressed by the second pressing member made of an elastic member. Therefore, when viewed from the entire first main surface of the flat glass, a sufficient pressing force can be applied. Therefore, when the folding member is pushed in, the bending stress centered on the scribe line is sufficiently applied, and the flat glass can be reliably broken along the scribe line. Further, since the surface of the second pressing member facing the first main surface is a convex curved surface, the pressing state becomes unstable even if the contact position between the second pressing member and the first main surface of the non-product portion changes. Hateful. Therefore, even if the size of the non-product portion changes due to a change in the type of flat glass, it is not necessary to adjust the position of the second pressing member.

上記の構成において、第二押圧部材が、スクライブ線に沿って長尺な円柱状であることが好ましい。このようにすれば、弾性部材に凸曲面を簡単に形成することができる。また、弾性部材の厚みを増加させて変形量を大きくさせやすいので、非製品部の第一主面の押圧状態をより安定化させることができる。 In the above configuration, it is preferable that the second pressing member has a long columnar shape along the scribe line. In this way, a convex curved surface can be easily formed on the elastic member. Further, since the thickness of the elastic member can be easily increased to increase the amount of deformation, the pressed state of the first main surface of the non-product portion can be further stabilized.

上記の構成において、第二押圧部材が、保持部材に形成された凹部に嵌め込み保持されていることが好ましい。このようにすれば、弾性部材を簡単な構造で安価に保持できる。 In the above configuration, it is preferable that the second pressing member is fitted and held in the recess formed in the holding member. In this way, the elastic member can be held at low cost with a simple structure.

上記の構成において、折割部材の第二主面と対向する面は、スクライブ線の両側に跨る平面部と、平面部の両側で第二主面から離れるように傾斜した一対の傾斜部とを有することが好ましい。このようにすれば、次のような利点がある。第一に、平面部がスクライブ線の線幅よりも幅広になるので、板ガラスの第二主面のスクライブ線に対応する位置に、折割部材を位置合わせしやすくなる。換言すれば、板ガラスの位置ずれを吸収しやすくなる。第二に、スクライブ線に対応する位置で第二主面が平面部によって確実に押し込まれるので、第一主面から第二主面に向かってスクライブ線が真っ直ぐ（垂直）に進展しやすくなる。この際、平面部と両傾斜部の二つの連結部、第一押圧部材、第二押圧部材がそれぞれ支点となって、板ガラスにとって好ましい四点曲げのような荷重態様になることが期待できる。第三に、折り割った直後に、製品部の切断端面と非製品部の切断端面との間が平面部によって押し広げられるので、両切断端面が干渉して傷つくのを防止できる。第四に、傾斜部によって板ガラスが急峻に折れ曲がるのを阻止できる。すなわち、スクライブ線に不当な応力が作用するのを防止できる。板ガラスが薄い場合、板ガラスの可撓性が上がるので、傾斜部の当該効果は特に有用となる。 In the above configuration, the surface of the folding member facing the second main surface includes a flat surface portion straddling both sides of the scribe line and a pair of inclined portions inclined so as to be separated from the second main surface on both sides of the flat surface portion. It is preferable to have. This has the following advantages. First, since the flat surface portion is wider than the line width of the scribe line, it becomes easy to align the folding member with the position corresponding to the scribe line on the second main surface of the flat glass. In other words, it becomes easier to absorb the misalignment of the flat glass. Secondly, since the second main surface is surely pushed by the flat surface portion at the position corresponding to the scribe line, the scribe line tends to extend straight (vertically) from the first main surface to the second main surface. At this time, it can be expected that the two connecting portions of the flat surface portion and both inclined portions, the first pressing member, and the second pressing member serve as fulcrums, respectively, to provide a load mode such as four-point bending, which is preferable for flat glass. Thirdly, immediately after the product is folded, the space between the cut end face of the product part and the cut end face of the non-product part is expanded by the flat surface portion, so that it is possible to prevent both cut end faces from interfering with each other and being damaged. Fourth, the inclined portion can prevent the flat glass from bending sharply. That is, it is possible to prevent an unreasonable stress from acting on the scribe wire. When the flat glass is thin, the flexibility of the flat glass is increased, so that the effect of the inclined portion becomes particularly useful.

上記課題を解決するために創案された本発明は、第一主面に形成されたスクライブ線を境界とする製品部及び非製品部を有する板ガラスを、スクライブ線に沿って折り割る板ガラスの折割装置であって、製品部の第一主面を押圧する第一押圧部材と、非製品部の第一主面を押圧する第二押圧部材と、スクライブ線に対応する位置で、板ガラスの第二主面を第一主面側に押し込む折割部材とを備え、第一押圧部材が、ブラシ状部材からなり、第二押圧部材が、少なくとも第一主面と対向する面が凸曲面をなす弾性部材からなることを特徴とする。このような構成によれば、既に述べた対応する構成と同様の効果を享受することができる。 The present invention, which was devised to solve the above problems, folds a flat glass having a product part and a non-product part having a scribe line formed on the first main surface as a boundary and folds the flat glass along the scribe line. In the device, the first pressing member that presses the first main surface of the product part, the second pressing member that presses the first main surface of the non-product part, and the second plate glass at the position corresponding to the scribe line. It is provided with a folding member that pushes the main surface toward the first main surface side, the first pressing member is made of a brush-like member, and the second pressing member is elastic so that at least the surface facing the first main surface forms a convex curved surface. It is characterized by being composed of members. With such a configuration, the same effect as the corresponding configuration already described can be enjoyed.

以上のように本発明によれば、製品部の汚れを防止しつつ、非製品部の大きさが変わっても板ガラスをスクライブ線に沿って効率よく確実に折り割ることができる。 As described above, according to the present invention, it is possible to efficiently and surely fold the flat glass along the scribe line even if the size of the non-product part changes while preventing the product part from becoming dirty.

本発明の実施形態に係る板ガラスの折割装置及びその動作を示す側面図である。It is a side view which shows the flat glass folding apparatus which concerns on embodiment of this invention, and its operation. 図１の折割装置に含まれる弾性部材及びブラシ状部材と、板ガラスの関係を示す平面図である。It is a top view which shows the relationship between the elastic member and the brush-like member included in the folding apparatus of FIG. 1 and a plate glass. 本実施形態に係る板ガラスの折割装置及びその動作を示す側面図である。It is a side view which shows the flat glass folding apparatus which concerns on this embodiment, and its operation. 本実施形態に係る板ガラスの折割装置及びその動作を示す側面図である。It is a side view which shows the flat glass folding apparatus which concerns on this embodiment, and its operation. 本実施形態に係る板ガラスの折割装置及びその動作を示す側面図である。It is a side view which shows the flat glass folding apparatus which concerns on this embodiment, and its operation.

以下、本発明に係る実施形態を添付図面に基づいて説明する。 Hereinafter, embodiments according to the present invention will be described with reference to the accompanying drawings.

図１に示すように、本実施形態に係る板ガラスの折割装置１は、板ガラスＧをスクライブ線Ｓに沿って折り割るものである。 As shown in FIG. 1, the plate glass folding device 1 according to the present embodiment folds the plate glass G along the scribe line S.

板ガラスＧは平置き姿勢（好ましくは水平姿勢）で配置され、スクライブ線Ｓが形成された第一主面Ｇ１が上面、第二主面Ｇ２が下面とされる。板ガラスＧは、スクライブ線Ｓを境界として製品部Ｇａと非製品部Ｇｂとに区画される。非製品部ＧｂのＸ方向寸法は、例えば、３０ｍｍ〜２００ｍｍの範囲で変更される。非製品部Ｇｂには、製品部Ｇａよりも板厚の大きい厚肉部（不図示）が含まれている場合がある。非製品部Ｇｂの厚肉部は、例えば、オーバーフローダウンドロー法やフロート法などを用いて板ガラスＧを成形したときに生じ得る。 The flat glass G is arranged in a flat posture (preferably a horizontal posture), and the first main surface G1 on which the scribe line S is formed is the upper surface, and the second main surface G2 is the lower surface. The flat glass G is divided into a product part Ga and a non-product part Gb with the scribe line S as a boundary. The X-direction dimension of the non-product portion Gb is changed in the range of, for example, 30 mm to 200 mm. The non-product portion Gb may include a thick portion (not shown) having a plate thickness larger than that of the product portion Ga. The thick portion of the non-product portion Gb may occur when the flat glass G is formed by using, for example, an overflow down draw method or a float method.

折割装置１は、搬送機構２と、第一押圧機構３と、第二押圧機構４と、折割機構５と、除去機構６とを備えている。なお、本実施形態では、板ガラスＧの搬送方向（Ｘ方向）の下流側に位置するスクライブ線Ｓに沿って板ガラスＧを折り割る構成を例示するが、これに限定されない。 The folding device 1 includes a transport mechanism 2, a first pressing mechanism 3, a second pressing mechanism 4, a folding mechanism 5, and a removing mechanism 6. In this embodiment, a configuration in which the plate glass G is folded along the scribe line S located on the downstream side in the transport direction (X direction) of the plate glass G is illustrated, but the present invention is not limited to this.

搬送機構２は、板ガラスＧを搬送方向に搬送すると共に、所定位置で停止させるものである。搬送機構２は、上流側に配置された第一ベルトコンベア２１と、下流側に配置された第二ベルトコンベア２２とを備えている。第一ベルトコンベア２１及び第二ベルトコンベア２２は、搬送方向に間隔を置いて配置されており、両者２１，２２の間に折割空間Ｂが形成されている。第一ベルトコンベア２１及び第二ベルトコンベア２２は、板ガラスＧを下流側に搬送するときはａ方向及びｂ方向に同速度で駆動される。一方、第一ベルトコンベア２１及び第二ベルトコンベア２２は、折割空間Ｂ内の所定位置にスクライブ線Ｓが到来したときは板ガラスＧの搬送を停止する。なお、搬送機構２は、ベルトコンベアに特に限定されるものではない。例えば、ローラコンベアや、ロボットハンドなどであってもよい。 The transport mechanism 2 transports the flat glass G in the transport direction and stops it at a predetermined position. The transport mechanism 2 includes a first belt conveyor 21 arranged on the upstream side and a second belt conveyor 22 arranged on the downstream side. The first belt conveyor 21 and the second belt conveyor 22 are arranged at intervals in the transport direction, and a folding space B is formed between the two 21 and 22. The first belt conveyor 21 and the second belt conveyor 22 are driven at the same speed in the a direction and the b direction when the flat glass G is conveyed to the downstream side. On the other hand, the first belt conveyor 21 and the second belt conveyor 22 stop the transportation of the flat glass G when the scribing line S arrives at a predetermined position in the folding space B. The transport mechanism 2 is not particularly limited to the belt conveyor. For example, it may be a roller conveyor, a robot hand, or the like.

第一押圧機構３は、第一ベルトコンベア２１の上で製品部Ｇａの第一主面Ｇ１を押圧する第一押圧部材３１を上下方向に昇降可能に備えている。第一押圧部材３１は、ブラシ状部材から構成されている。ブラシの毛は弾性を有し、製品部Ｇａの第一主面Ｇ１に倣って撓む。すなわち、ブラシの毛は、板ガラスＧの微妙な動き（変形を含む）にも追従する。ブラシの毛は、例えば、ナイロンなどの樹脂製繊維から形成される。 The first pressing mechanism 3 is provided with a first pressing member 31 that presses the first main surface G1 of the product unit Ga on the first belt conveyor 21 so as to be able to move up and down in the vertical direction. The first pressing member 31 is composed of a brush-shaped member. The bristles of the brush have elasticity and bend according to the first main surface G1 of the product part Ga. That is, the bristles of the brush follow the delicate movement (including deformation) of the plate glass G. Brush bristles are formed from resin fibers such as nylon.

第二押圧機構４は、第二ベルトコンベア２２の上で非製品部Ｇｂの第一主面Ｇ１を押圧する第二押圧部材４１を上下方向に昇降可能に備えている。第二押圧部材４１は、少なくとも第一主面Ｇ１と対向する面が凸曲面をなすゴム（弾性部材）から構成されている。ゴムは、板ガラスＧの第二主面Ｇ２に倣って弾性変形するので、板ガラスＧの微妙な動き（変形を含む）にも追従する。ゴムは、本実施形態では棒状、具体的には円柱状で形成されているが、例えば半円柱状や円筒状などであってもよい。ゴムとしては、例えば、天然ゴム、合成ゴムなどが使用できる。円筒状の弾性部材としては、例えば、ビニル鋼管のうちの鋼管の外面を覆うビニルを使用できる。なお、弾性部材はゴムに限定されず、スポンジなどであってもよい。 The second pressing mechanism 4 is provided with a second pressing member 41 that presses the first main surface G1 of the non-product portion Gb on the second belt conveyor 22 so as to be able to move up and down in the vertical direction. The second pressing member 41 is made of rubber (elastic member) whose surface facing at least the first main surface G1 has a convex curved surface. Since the rubber elastically deforms following the second main surface G2 of the plate glass G, it follows the delicate movement (including deformation) of the plate glass G. In the present embodiment, the rubber is formed in a rod shape, specifically in a columnar shape, but may be, for example, a semi-cylindrical shape or a cylindrical shape. As the rubber, for example, natural rubber, synthetic rubber and the like can be used. As the cylindrical elastic member, for example, vinyl covering the outer surface of the steel pipe among the vinyl steel pipes can be used. The elastic member is not limited to rubber, and may be a sponge or the like.

第二押圧機構４は、非製品部Ｇｂの第一主面Ｇ１と対向する面に凹部４２ａを有する保持部材４２を更に備えている。第二押圧部材４１は、保持部材４２の凹部４２ａに嵌め込み保持されている。本実施形態では、凹部４２ａはあり溝で構成されており、凹部４２ａの第一主面Ｇ１側に開口した部分の溝幅は、第二押圧部材４１の最大径（直径）よりも小さくなっている。この状態で、第二押圧部材４１の最大径部分は凹部４２ａ内に収納されており、第二押圧部材４１の最大径部分を除く一部が、凹部４２ａ外に突出している。なお、この状態で第二押圧部材４１が凹部４２ａに接着されていてもよい。 The second pressing mechanism 4 further includes a holding member 42 having a recess 42a on a surface of the non-product portion Gb facing the first main surface G1. The second pressing member 41 is fitted and held in the recess 42a of the holding member 42. In the present embodiment, the recess 42a is composed of a groove, and the groove width of the portion of the recess 42a opened on the first main surface G1 side is smaller than the maximum diameter (diameter) of the second pressing member 41. There is. In this state, the maximum diameter portion of the second pressing member 41 is housed in the recess 42a, and a part of the second pressing member 41 other than the maximum diameter portion projects to the outside of the recess 42a. In this state, the second pressing member 41 may be adhered to the recess 42a.

折割機構５は、折割空間Ｂに配置されている。折割機構５は、スクライブ線Ｓの直下位置で板ガラスＧの第二主面Ｇ２を押し上げる折割部材５１を上下方向に昇降可能に備えている。折割部材５１の第二主面Ｇ２と対向する面は、スクライブ線Ｓの両側（スクライブ線Ｓと直交するＸ方向両側）に跨る平面部５１ａと、平面部５１ａの両側で第二主面Ｇ２から離れるように下方傾斜した一対の傾斜部５１ｂとを有する。本実施形態では、折割部材５１の第二主面Ｇ２と対向する面は、断面形状が等脚台形状をなす。平面部５１ａのＸ方向の寸法は、３〜１５ｍｍであることが好ましい。平面部５１ａは水平面であることが好ましい。平面部５１ａと傾斜部５１ｂとのなす角θは、３０〜５０°であることが好ましい。 The folding mechanism 5 is arranged in the folding space B. The folding mechanism 5 is provided with a folding member 51 that pushes up the second main surface G2 of the plate glass G at a position directly below the scribe line S so as to be able to move up and down in the vertical direction. The surfaces of the folding member 51 facing the second main surface G2 are a flat surface portion 51a straddling both sides of the scribe line S (both sides in the X direction orthogonal to the scribe line S) and a second main surface G2 on both sides of the flat surface portion 51a. It has a pair of inclined portions 51b that are inclined downward so as to be separated from the above. In the present embodiment, the surface of the folding member 51 facing the second main surface G2 has an isosceles trapezoidal cross-sectional shape. The dimension of the flat surface portion 51a in the X direction is preferably 3 to 15 mm. The flat surface portion 51a is preferably a horizontal plane. The angle θ formed by the flat surface portion 51a and the inclined portion 51b is preferably 30 to 50 °.

除去機構６は、板ガラスＧをスクライブ線Ｓに沿って折り割った後に、非製品部Ｇｂを第二ベルトコンベア２２上から取り除くためのものである。本実施形態では、除去機構６は、搬送方向の上流側に配置された第一吸着部材６１と、搬送方向の下流側に配置された第二吸着部材６２とを備えている。板ガラスＧの非製品部Ｇｂが大きい場合、板ガラスＧを折り割った後に、第一吸着部材６１及び第二吸着部材６２で非製品部Ｇｂを吸着保持して持ち上げ、第二ベルトコンベア２２上から非製品部Ｇｂを取り除く。一方、板ガラスＧの非製品部Ｇｂが小さい場合、板ガラスＧを折り割った後に、第一吸着部材６１のみで非製品部Ｇｂを吸着保持して持ち上げ、第二ベルトコンベア２２上から非製品部Ｇｂを取り除く。第一吸着部材６１及び第二吸着部材６２は蛇腹状であり、非製品部Ｇｂの傾きに応じて吸着面の姿勢を変えることができる。取り除かれた非製品部Ｇｂは、例えば、粉砕してガラス原料として再利用される。なお、除去機構６による非製品部Ｇｂの保持態様は吸着に限定されない。例えば、非製品部Ｇｂをチャックなどで挟持したり、爪などに引っ掛けたりして保持するようにしてもよい。また、除去機構として、第二ベルトコンベア２２を傾斜させるなどの構成を採用し、非製品部Ｇｂを第二ベルトコンベア２２上から落下回収するようにしてもよい。 The removing mechanism 6 is for removing the non-product portion Gb from the second belt conveyor 22 after the flat glass G is broken along the scribe line S. In the present embodiment, the removal mechanism 6 includes a first suction member 61 arranged on the upstream side in the transport direction and a second suction member 62 arranged on the downstream side in the transport direction. When the non-product portion Gb of the plate glass G is large, after the plate glass G is broken, the non-product portion Gb is sucked and held by the first suction member 61 and the second suction member 62 and lifted, and the non-product portion Gb is lifted from the second belt conveyor 22. Remove the product part Gb. On the other hand, when the non-product portion Gb of the plate glass G is small, after the plate glass G is broken, the non-product portion Gb is sucked and held and lifted only by the first suction member 61, and the non-product portion Gb is lifted from the second belt conveyor 22. Get rid of. The first suction member 61 and the second suction member 62 have a bellows shape, and the posture of the suction surface can be changed according to the inclination of the non-product portion Gb. The removed non-product portion Gb is, for example, pulverized and reused as a glass raw material. The holding mode of the non-product portion Gb by the removing mechanism 6 is not limited to adsorption. For example, the non-product portion Gb may be held by being held by a chuck or the like or by being hooked on a claw or the like. Further, as the removal mechanism, a configuration such as inclining the second belt conveyor 22 may be adopted so that the non-product portion Gb is dropped and collected from the second belt conveyor 22.

図２に示すように、第一押圧部材３１、第二押圧部材４１及び折割部材５１は、スクライブ線Ｓに沿う方向（搬送方向と直交する幅方向（Ｙ方向））に延びた長尺体である。本実施形態では、第一押圧部材３１、第二押圧部材４１及び折割部材５１は、板ガラスＧの全幅に亘って連続的に接触する。なお、本実施形態では、第一押圧部材３１、第二押圧部材４１及び折割部材５１は、板ガラスＧの全幅よりも長いが、これらの部材３１，４１，５１の少なくとも一つが、板ガラスＧの全幅と同じ長さであってもよいし、短い長さであってもよい。また、第一押圧部材３１、第二押圧部材４１及び折割部材５１の少なくとも一つが、幅方向で板ガラスＧと断続的に接触してもよい。 As shown in FIG. 2, the first pressing member 31, the second pressing member 41, and the folding member 51 are elongated bodies extending in a direction along the scribe line S (width direction (Y direction) orthogonal to the transport direction). Is. In the present embodiment, the first pressing member 31, the second pressing member 41, and the folding member 51 are in continuous contact with each other over the entire width of the flat glass G. In the present embodiment, the first pressing member 31, the second pressing member 41, and the folding member 51 are longer than the total width of the plate glass G, but at least one of these members 31, 41, 51 is made of the plate glass G. It may be the same length as the full width, or it may be a short length. Further, at least one of the first pressing member 31, the second pressing member 41 and the folding member 51 may intermittently contact the plate glass G in the width direction.

次に、以上のように構成された折割装置１を用いた折割工程を中心として、本実施形態に係る板ガラスの製造方法を説明する。 Next, the method for manufacturing the flat glass according to the present embodiment will be described with a focus on the folding step using the folding device 1 configured as described above.

まず、オーバーフローダウンドロー法などの公知の成形方法により、溶融ガラスなどから原板となる板ガラスＧを成形する。板ガラスＧの製品部Ｇａの厚みは、例えば、２ｍｍ以下であり、好ましくは０．３ｍｍ〜０．７ｍｍである。 First, the plate glass G to be the original plate is molded from molten glass or the like by a known molding method such as an overflow down draw method. The thickness of the product portion Ga of the flat glass G is, for example, 2 mm or less, preferably 0.3 mm to 0.7 mm.

次に、板ガラスＧの第一主面Ｇ１において、製品部Ｇａと非製品部Ｇｂとの境界に対して、ホイールカッターによる押圧やレーザーの照射等によりスクライブ線Ｓを形成する。本実施形態では、板ガラスＧは、矩形状であり、対向する一組の辺（二辺のみ）や各辺（四辺）に平行にスクライブ線Ｓを形成する。スクライブ線Ｓの内側が製品部Ｇａ、スクライブ線Ｓの外側が非製品部Ｇｂとなる。 Next, on the first main surface G1 of the flat glass G, a scribe line S is formed on the boundary between the product portion Ga and the non-product portion Gb by pressing with a wheel cutter, irradiating a laser, or the like. In the present embodiment, the flat glass G has a rectangular shape, and forms a scribe line S parallel to a set of opposing sides (only two sides) and each side (four sides). The inside of the scribe line S is the product part Ga, and the outside of the scribe line S is the non-product part Gb.

図１に示すように、スクライブ線Ｓが形成された板ガラスＧを、第一主面Ｇ１を上方に向けた状態で、搬送機構２で搬送する。搬送機構２は、第一ベルトコンベア２１と第二ベルトコンベア２２との間の折割空間Ｂ内の所定位置に、搬送方向の下流側（前方側）に位置するスクライブ線Ｓが到来した時点で、板ガラスＧの搬送を停止する。その後、板ガラスＧの第一主面Ｇ１の上方に退避していた第一押圧部材３１及び第二押圧部材４１を下降させ、製品部Ｇａの第一主面Ｇ１及び非製品部Ｇｂの第一主面Ｇ１を押圧する。すなわち、ブラシ状部材からなる第一押圧部材３１で製品部Ｇａの第一主面Ｇ１が保持され、ゴムからなる第二押圧部材４１で非製品部Ｇｂの第一主面Ｇ１が保持される。 As shown in FIG. 1, the flat glass G on which the scribe line S is formed is conveyed by the conveying mechanism 2 with the first main surface G1 facing upward. The transport mechanism 2 is when the scribing line S located on the downstream side (front side) in the transport direction arrives at a predetermined position in the folding space B between the first belt conveyor 21 and the second belt conveyor 22. , Stop the transportation of the flat glass G. After that, the first pressing member 31 and the second pressing member 41 retracted above the first main surface G1 of the flat glass G are lowered, and the first main surface G1 of the product part Ga and the first main surface of the non-product part Gb are lowered. Press the surface G1. That is, the first pressing member 31 made of a brush-shaped member holds the first main surface G1 of the product part Ga, and the second pressing member 41 made of rubber holds the first main surface G1 of the non-product part Gb.

この状態から、板ガラスＧの下方に退避していた折割部材５１を上昇させ、図３に示すように、スクライブ線Ｓの直下位置で、板ガラスＧの第二主面Ｇ２を上方に押し上げる。これにより、スクライブ線Ｓを中心とする曲げ応力を板ガラスＧに作用させる。この際、スクライブ線Ｓの両側に跨るように、折割部材５１の平面部５１ａが板ガラスＧの第二主面Ｇ２と接触する。折割部材５１の上昇量は、板ガラスＧの搬送面（第一ベルトコンベア２１及び第二ベルトコンベア２２の上面）を零基準として上方に、例えば２ｍｍ〜３０ｍｍである。折割部材５１の上昇量は、非製品部Ｇｂの大きさや板厚によって変化させてもよいし、変化させなくてもよい。 From this state, the folding member 51 retracted below the flat glass G is raised, and as shown in FIG. 3, the second main surface G2 of the flat glass G is pushed upward at a position directly below the scribe line S. As a result, bending stress centered on the scribe line S is applied to the plate glass G. At this time, the flat surface portion 51a of the folding member 51 comes into contact with the second main surface G2 of the flat glass G so as to straddle both sides of the scribe line S. The amount of rise of the folding member 51 is, for example, 2 mm to 30 mm upward with respect to the transport surface (upper surface of the first belt conveyor 21 and the second belt conveyor 22) of the plate glass G. The amount of increase of the folding member 51 may or may not be changed depending on the size and plate thickness of the non-product portion Gb.

板ガラスＧに曲げ応力を作用させると、図４に示すように、スクライブ線Ｓに沿って板ガラスＧが折り割られ、製品部Ｇａと非製品部Ｇｂとが分離される。この際、スクライブ線Ｓの直下方位置で板ガラスＧの第二主面Ｇ２が平面部５１ａによって押し上げられて四点曲げのような荷重態様となる。これにより、スクライブ線Ｓが真っ直ぐ（垂直）に進展しやすくなる。その結果、製品部Ｇａの切断端面Ｇａｘの後加工を省略又は少なくすることができる。 When a bending stress is applied to the flat glass G, the flat glass G is folded along the scribe line S and the product portion Ga and the non-product portion Gb are separated as shown in FIG. At this time, the second main surface G2 of the plate glass G is pushed up by the flat surface portion 51a at a position directly below the scribe line S, resulting in a load mode such as four-point bending. This makes it easier for the scribe line S to travel straight (vertically). As a result, post-processing of the cut end face Gax of the product part Ga can be omitted or reduced.

本実施形態では、製品部Ｇａと非製品部Ｇｂとが分離された後も、折割部材５１は上昇状態を維持する。このとき、製品部Ｇａの切断端面Ｇａｘと非製品部Ｇｂの切断端面Ｇｂｘとの間は折割部材５１の平面部５１ａによって押し広げられ、製品部Ｇａの切断端面Ｇａｘと非製品部Ｇｂの切断端面Ｇｂｘとが互いに離れた状態となる。この状態で、非製品部Ｇｂの第一主面Ｇ１の上方に退避していた第一吸着部材６１及び第二吸着部材６２（又は第一吸着部材６１のみ）を下降させ、非製品部Ｇｂの第一主面Ｇ１を吸着保持する。この吸着保持と同時又はこれと前後して、第一押圧部材３１及び第二押圧部材４１を上昇退避させる。そして、第一吸着部材６１及び第二吸着部材６２（又は第一吸着部材６１のみ）で吸着保持した非製品部Ｇｂを持ち上げ、第二ベルトコンベア２２上から取り除く。 In the present embodiment, the folding member 51 maintains the raised state even after the product part Ga and the non-product part Gb are separated. At this time, the space between the cut end surface Gax of the product part Ga and the cut end surface Gbx of the non-product part Gb is expanded by the flat surface portion 51a of the folding member 51, and the cut end surface Gax of the product part Ga and the non-product part Gb are cut. The end face Gbx and the end face Gbx are separated from each other. In this state, the first suction member 61 and the second suction member 62 (or only the first suction member 61) retracted above the first main surface G1 of the non-product part Gb are lowered to lower the non-product part Gb. Adsorbs and holds the first main surface G1. At the same time as or before and after this suction holding, the first pressing member 31 and the second pressing member 41 are raised and retracted. Then, the non-product portion Gb sucked and held by the first suction member 61 and the second suction member 62 (or only the first suction member 61) is lifted and removed from the second belt conveyor 22.

図５に示すように、非製品部Ｇｂを取り除いた後、折割部材５１を下降退避させると共に、第一ベルトコンベア２１及び第二ベルトコンベア２２をａ方向及びｂ方向に再び駆動し、製品部Ｇａを下流側に搬送する。これにより、製品部Ｇａは、折割空間Ｂを乗り越えて、第一ベルトコンベア２１上から第二ベルトコンベア２２上に乗り移る。 As shown in FIG. 5, after removing the non-product portion Gb, the folding member 51 is lowered and retracted, and the first belt conveyor 21 and the second belt conveyor 22 are driven again in the a direction and the b direction to drive the product portion. Ga is transported to the downstream side. As a result, the product unit Ga gets over the folding space B and transfers from the first belt conveyor 21 to the second belt conveyor 22.

ここで、搬送方向の下流側に位置するスクライブ線Ｓに沿って板ガラスＧを折り割る場合を説明したが、別の位置に形成されたスクライブ線Ｓについても同様の態様で板ガラスＧを折り割るものとする。ただし、搬送方向の上流側（後方側）に位置するスクライブ線Ｓに沿って板ガラスＧを折り割る場合は、例えば、搬送方向の上流側に第二押圧機構４及び除去機構６が配置され、搬送方向の下流側に第一押圧機構３が配置される。すなわち、搬送方向の下流側に位置するスクライブ線Ｓに沿って板ガラスＧを折り割る場合を示す図１の状態とは配置が逆になる。また、板ガラスＧの残り一対の対向二辺にも平行にスクライブ線Ｓを形成した場合には、例えば、搬送経路の途中で板ガラスＧを９０°回転させた後、搬送方向の下流側と上流側に位置換えされた各スクライブ線Ｓについて同様の態様で板ガラスＧを折り割る。 Here, the case where the plate glass G is folded along the scribe line S located on the downstream side in the transport direction has been described, but the plate glass G is also folded in the same manner for the scribe line S formed at another position. And. However, when the plate glass G is broken along the scribe line S located on the upstream side (rear side) in the transport direction, for example, the second pressing mechanism 4 and the removing mechanism 6 are arranged on the upstream side in the transport direction to transport. The first pressing mechanism 3 is arranged on the downstream side in the direction. That is, the arrangement is opposite to the state of FIG. 1, which shows the case where the plate glass G is broken along the scribe line S located on the downstream side in the transport direction. When the scribe line S is formed parallel to the remaining pair of opposite sides of the plate glass G, for example, after rotating the plate glass G by 90 ° in the middle of the transfer path, the downstream side and the upstream side in the transfer direction The flat glass G is broken in the same manner for each scribe line S repositioned to.

以上のようにすれば、製品部Ｇａの第一主面Ｇ１はブラシ状部材からなる第一押圧部材３１で補助的に押圧され、非製品部Ｇｂの第一主面Ｇ１は弾性部材（円柱状のゴム）からなる第二押圧部材４１でしっかりと押圧される。板ガラスＧの第一主面Ｇ１全体で見た場合、十分な押圧力となる。したがって、折割部材５１を押し上げる際に、スクライブ線Ｓを中心とした曲げ応力を十分に作用させ、板ガラスＧをスクライブ線Ｓに沿って確実に折り割ることができる。 As described above, the first main surface G1 of the product part Ga is auxiliary pressed by the first pressing member 31 made of a brush-like member, and the first main surface G1 of the non-product part Gb is an elastic member (cylindrical member). It is firmly pressed by the second pressing member 41 made of (rubber). When viewed as a whole of the first main surface G1 of the flat glass G, the pressing force is sufficient. Therefore, when the folding member 51 is pushed up, the bending stress centered on the scribe line S is sufficiently applied, and the flat glass G can be reliably folded along the scribe line S.

また、第一押圧部材３１はブラシ状部材であるので、製品部Ｇａとの接触状態がソフトになる。そのため、製品部Ｇａに不要な汚れや傷もつきにくい。 Further, since the first pressing member 31 is a brush-shaped member, the contact state with the product portion Ga becomes soft. Therefore, unnecessary stains and scratches on the product part Ga are less likely to occur.

更に、第二押圧部材４１は円柱状のゴムであるので、非製品部Ｇｂの第一主面Ｇ１に対して凸曲面が接触する。そのため、非製品部Ｇｂの第一主面Ｇ１との接触位置が変化しても、押圧状態は不安定になりにくい。したがって、板ガラスＧの種類などが変更されて、非製品部Ｇｂの大きさが変わった場合でも、第二押圧部材４１の位置を調整する必要がない。その結果、調整作業に要する時間を省略することができるので、板ガラスＧを効率よく製造することが可能となる。 Further, since the second pressing member 41 is a columnar rubber, the convex curved surface comes into contact with the first main surface G1 of the non-product portion Gb. Therefore, even if the contact position of the non-product portion Gb with the first main surface G1 changes, the pressed state is unlikely to become unstable. Therefore, even if the type of the flat glass G is changed and the size of the non-product portion Gb is changed, it is not necessary to adjust the position of the second pressing member 41. As a result, the time required for the adjustment work can be omitted, so that the flat glass G can be efficiently manufactured.

以上、本発明の実施形態に係る板ガラスの折割装置及び板ガラスの製造方法について説明したが、本発明の実施の形態はこれに限定されるものではなく、本発明の要旨を逸脱しない範囲で種々変更を施すことが可能である。 Although the plate glass folding device and the method for manufacturing the plate glass according to the embodiment of the present invention have been described above, the embodiment of the present invention is not limited to this and varies within a range that does not deviate from the gist of the present invention. It is possible to make changes.

上記の実施形態では、板ガラスＧをスクライブ線Ｓと直交する方向（図２のＸ方向）に搬送しながら板ガラスＧを折り割る場合を説明したが、板ガラスＧをスクライブ線Ｓに沿う方向（図２のＹ方向）に搬送しながら板ガラスＧを折り割ってもよい。 In the above embodiment, the case where the flat glass G is folded while being conveyed in the direction orthogonal to the scribing line S (X direction in FIG. 2) has been described, but the flat glass G is in the direction along the scribing line S (FIG. 2). The flat glass G may be broken while being conveyed in the Y direction of the above.

また、上記の実施形態では、折割部材５１の第二主面Ｇ２と対向する面（上端部）を断面台形状にする場合を説明したが、折割部材５１の第二主面Ｇ２と対向する面は断面三角形状、断面半円形状、断面四角形状などであってもよい。 Further, in the above embodiment, the case where the surface (upper end portion) of the folding member 51 facing the second main surface G2 has a trapezoidal cross section has been described, but the folding member 51 faces the second main surface G2. The surface to be formed may have a triangular cross section, a semicircular cross section, a quadrangular cross section, or the like.

また、上記の実施形態では、除去機構６として、二つの保持部材（吸着部材６１，６２）を配置する場合を説明したが、一つ又は三つ以上の保持部材を配置してもよい。複数の保持部材を配置する場合は、非製品部Ｇｂの大きさや重さに応じて、非製品部Ｇｂを保持する保持部材の個数を調整することが好ましい。これに対し、一つの保持部材を配置する場合は、非製品部Ｇｂの大きさや重さに応じて、非製品部Ｇｂを吸着する保持部材の個数を調整することはできないが、非製品部Ｇｂの持ち上げ姿勢を調整すれば、特に問題はない。例えば、上方に持ち上げた非製品部Ｇｂを縦姿勢（鉛直姿勢）に変更すれば、重力が面に沿って作用するので安全に持ち運ぶことができる。 Further, in the above embodiment, the case where two holding members (adsorption members 61 and 62) are arranged as the removing mechanism 6 has been described, but one or more holding members may be arranged. When arranging a plurality of holding members, it is preferable to adjust the number of holding members for holding the non-product portion Gb according to the size and weight of the non-product portion Gb. On the other hand, when one holding member is arranged, the number of holding members that adsorb the non-product part Gb cannot be adjusted according to the size and weight of the non-product part Gb, but the non-product part Gb If you adjust the lifting posture of, there is no particular problem. For example, if the non-product portion Gb lifted upward is changed to a vertical posture (vertical posture), gravity acts along the surface, so that the product can be safely carried.

また、上記の実施形態では、折割部材５１で製品部Ｇａと非製品部Ｇｂとを分離した後に、吸着部材６１及び吸着部材６２（又は吸着部材６１のみ）で非製品部Ｇｂの第一主面Ｇ１を吸着保持する場合を説明したが、折割部材５１で製品部Ｇａと非製品部Ｇｂとを分離する前に、吸着部材６１及び吸着部材６２（又は吸着部材６１のみ）で非製品部Ｇｂの第一主面Ｇ１を吸着保持してもよい。すなわち、吸着部材６１及び吸着部材６２（又は吸着部材６１のみ）で非製品部Ｇｂの第一主面Ｇ１を吸着保持した状態で、折割部材５１で製品部Ｇａと非製品部Ｇｂとを分離させてもよい。 Further, in the above embodiment, after the product part Ga and the non-product part Gb are separated by the folding member 51, the suction member 61 and the suction member 62 (or only the suction member 61) are the first main components of the non-product part Gb. The case where the surface G1 is sucked and held has been described, but before the product part Ga and the non-product part Gb are separated by the folding member 51, the suction member 61 and the suction member 62 (or only the suction member 61) are used to hold the non-product part. The first main surface G1 of Gb may be adsorbed and held. That is, the product part Ga and the non-product part Gb are separated by the folding member 51 in a state where the first main surface G1 of the non-product part Gb is sucked and held by the suction member 61 and the suction member 62 (or only the suction member 61). You may let me.

また、上記の実施形態の第二押圧部材４１において、第一主面Ｇ１と対向する面が凸曲面であり、凸曲面の横断面の形状は半円状である。凸曲面の横断面の形状は、半円状に限らず、例えば、半楕円状や放物線状等であってもよい。 Further, in the second pressing member 41 of the above embodiment, the surface facing the first main surface G1 is a convex curved surface, and the cross-sectional shape of the convex curved surface is semicircular. The shape of the cross section of the convex curved surface is not limited to a semicircular shape, and may be, for example, a semi-elliptical shape, a parabolic shape, or the like.

１ 折割装置
２ 搬送機構
２１ 第一ベルトコンベア
２２ 第二ベルトコンベア
３ 第一押圧機構
３１ 第一押圧部材
４ 第二押圧機構
４１ 第二押圧部材
４２ 保持部材
４２ａ 凹部
５ 折割機構
５１ 折割部材
５１ａ 平面部
５１ｂ 傾斜部
６ 除去機構
６１ 第一吸着部材
６２ 第二吸着部材
Ｂ 折割空間
Ｇ 板ガラス
Ｇ１ 第一主面
Ｇ２ 第二主面
Ｇａ 製品部
Ｇｂ 非製品部
Ｓ スクライブ線 1 Folding device 2 Conveying mechanism 21 First belt conveyor 22 Second belt conveyor 3 First pressing mechanism 31 First pressing member 4 Second pressing mechanism 41 Second pressing member 42 Holding member 42a Recess 5 Folding mechanism 51 Folding member 51a Flat part 51b Inclined part 6 Removal mechanism 61 First suction member 62 Second suction member B Folding space G Plate glass G1 First main surface G2 Second main surface Ga Product part Gb Non-product part S Scribing wire

Claims (5)

第一主面に形成されたスクライブ線を境界とする製品部及び非製品部を有する板ガラスのうち、前記製品部の前記第一主面を第一押圧部材で押圧し、前記非製品部の前記第一主面を第二押圧部材で押圧した状態で、前記スクライブ線に対応する位置で、折割部材で前記板ガラスの第二主面を前記第一主面側に押し込んで、前記スクライブ線に沿って前記板ガラスを折り割る折割工程を備えた板ガラスの製造方法であって、
前記第一押圧部材は、ブラシ状部材からなり、
前記ブラシ状部材の毛は、前記製品部の前記第一主面を押圧した際に、前記第一主面に倣って撓み変形可能な弾性を有し、
前記第二押圧部材は、少なくとも前記第一主面と対向する面が凸曲面をなす弾性部材からなることを特徴とする板ガラスの製造方法。 Of the flat glass having a product part and a non-product part having a scribe line formed on the first main surface as a boundary, the first main surface of the product part is pressed by the first pressing member, and the non-product part is said to be said. With the first main surface pressed by the second pressing member, the second main surface of the flat glass is pushed toward the first main surface side by the folding member at the position corresponding to the scribe line, and the scribe line is formed. It is a method of manufacturing a plate glass including a folding step of folding the plate glass along the same.
The first pressing member is composed of a brush-shaped member.
The bristles of the brush-like member have elasticity that allows them to bend and deform in accordance with the first main surface when the first main surface of the product part is pressed.
A method for manufacturing a flat glass, wherein the second pressing member is made of an elastic member whose surface facing at least the first main surface forms a convex curved surface. 前記第二押圧部材が、前記スクライブ線に沿って長尺な円柱状であることを特徴とする請求項１に記載の板ガラスの製造方法。 The method for manufacturing a flat glass according to claim 1, wherein the second pressing member has a long columnar shape along the scribe line. 前記第二押圧部材が、保持部材に形成された凹部に嵌め込み保持されていることを特徴とする請求項１又は２に記載の板ガラスの製造方法。 The method for manufacturing a flat glass according to claim 1 or 2, wherein the second pressing member is fitted and held in a recess formed in the holding member. 前記折割部材の前記第二主面と対向する面は、前記スクライブ線の両側に跨る平面部と、前記平面部の両側で前記第二主面から離れるように傾斜した一対の傾斜部とを有することを特徴とする請求項１〜３のいずれか１項に記載の板ガラスの製造方法。 The surface of the folding member facing the second main surface includes a flat surface portion straddling both sides of the scribe line and a pair of inclined portions inclined so as to be separated from the second main surface on both sides of the flat surface portion. The method for producing a flat glass according to any one of claims 1 to 3, wherein the glass plate is provided. 第一主面に形成されたスクライブ線を境界とする製品部及び非製品部を有する板ガラスを、前記スクライブ線に沿って折り割る板ガラスの折割装置であって、
前記製品部の前記第一主面を押圧する第一押圧部材と、前記非製品部の前記第一主面を押圧する第二押圧部材と、前記スクライブ線に対応する位置で、前記板ガラスの第二主面を前記第一主面側に押し込む折割部材とを備え、
前記第一押圧部材が、ブラシ状部材からなり、
前記ブラシ状部材の毛は、前記製品部の前記第一主面を押圧した際に、前記第一主面に倣って撓み変形可能な弾性を有し、
前記第二押圧部材が、少なくとも前記第一主面と対向する面が凸曲面をなす弾性部材からなることを特徴とする板ガラスの折割装置。 A flat glass folding device that folds a flat glass having a product part and a non-product part having a scribe line formed on the first main surface as a boundary along the scribe line.
The first pressing member that presses the first main surface of the product part, the second pressing member that presses the first main surface of the non-product part, and the second pressing member of the plate glass at a position corresponding to the scribe line. It is provided with a folding member that pushes the two main surfaces toward the first main surface side.
The first pressing member is made of a brush-like member.
The bristles of the brush-like member have elasticity that allows them to bend and deform in accordance with the first main surface when the first main surface of the product part is pressed.
A flat glass folding device, wherein the second pressing member is made of an elastic member whose surface facing at least the first main surface forms a convex curved surface.
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