JP2692450B2 - Glass plate cutting device - Google Patents
Glass plate cutting deviceInfo
- Publication number
- JP2692450B2 JP2692450B2 JP3256126A JP25612691A JP2692450B2 JP 2692450 B2 JP2692450 B2 JP 2692450B2 JP 3256126 A JP3256126 A JP 3256126A JP 25612691 A JP25612691 A JP 25612691A JP 2692450 B2 JP2692450 B2 JP 2692450B2
- Authority
- JP
- Japan
- Prior art keywords
- glass plate
- glass
- cutting device
- cutter
- wheel
- 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.)
- Expired - Fee Related
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B33/00—Severing cooled glass
- C03B33/10—Glass-cutting tools, e.g. scoring tools
- C03B33/105—Details of cutting or scoring means, e.g. tips
- C03B33/107—Wheel design, e.g. materials, construction, shape
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B33/00—Severing cooled glass
- C03B33/07—Cutting armoured, multi-layered, coated or laminated, glass products
- C03B33/076—Laminated glass comprising interlayers
- C03B33/078—Polymeric interlayers
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B33/00—Severing cooled glass
- C03B33/09—Severing cooled glass by thermal shock
Description
【０００１】[0001]
【産業上の利用分野】本発明は、板ガラスを切断するガ
ラス板切断装置に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a glass sheet cutting device for cutting sheet glass.
【０００２】[0002]
【従来の技術】図３（ａ）及び（ｂ）は従来のガラス板
切断装置の一例を説明するための図である。従来のガラ
ス板切断装置は、ガラス板に切溝を形成するホイール状
のカッタと、切溝が形成されたガラス板を押し付け、ガ
ラス板を切溝に沿って破断するスキージとを有してい
た。2. Description of the Related Art FIGS. 3A and 3B are views for explaining an example of a conventional glass sheet cutting device. The conventional glass plate cutting device has a wheel-shaped cutter that forms a cut groove in the glass plate, and a squeegee that presses the glass plate in which the cut groove is formed and breaks the glass plate along the cut groove. .
【０００３】すなわち、このガラス板切断装置を使用し
て、ガラス板を切断するには、まず、図３（ａ）に示す
ように、ガラス板６の一面に回転するカッタ２を走行さ
せ、浅い切溝７を形成する。次に、図３（ｂ）に示すよ
うに、ガラス板６の切溝７のある面に対して反対側の面
をスキージ９をたたきつけて、切溝７を押し広げ、ガラ
ス板を分断していた。That is, in order to cut a glass plate by using this glass plate cutting device, first, as shown in FIG. 3 (a), a cutter 2 which rotates on one surface of the glass plate 6 is run to make it shallow. The kerf 7 is formed. Next, as shown in FIG. 3B, a squeegee 9 is struck on the surface of the glass plate 6 opposite to the surface having the cut grooves 7 to spread the cut grooves 7 to divide the glass plate. It was
【０００４】このガラス板切断装置におけるカッタ２は
あくまで初期クラックと呼ばれる浅い切溝７をガラス基
板表面につけるだけで、それ自体にガラス基板を切断す
る能力は持たない。また、このカッタの材質は通常ダイ
ヤモンド製か超硬合金製である。そして、このカッタ２
で、例えば、約１キログラムスクエアセンチメートル程
度の加圧をしながらガラス基板表面をなぞると１００〜
２００μｍ程度の切溝７が入る。このように形成された
切溝の面に対して反対側から、スキージ９（主にウレタ
ンゴム製）でやはり約１キログラムスクエアセンチメー
トル程度の圧力でたたくと、初期クラックである切溝７
が進行して反対側にまで達し、ガラス基板６が分断され
る。図４（ａ）及び（ｂ）は図３のガラス板切断装置で
二枚重ねガラス板を切断した状態を示す図である。ま
た、ガラス基板だけでなく例えば、図４に示すように、
液晶表示パネルのように二枚重ねのガラス基板であって
も、片方のガラス板６ｂの表面カッタでなぞり、切溝７
を形成し、対向ガラス板６ａ側からブレーカであるスキ
ージ９でたたくことでガラス板を切断できる。The cutter 2 in this glass plate cutting apparatus merely makes a shallow kerf 7 called an initial crack on the surface of the glass substrate, and does not have the ability to cut the glass substrate by itself. The material of this cutter is usually diamond or cemented carbide. And this cutter 2
Then, for example, tracing the surface of the glass substrate while applying a pressure of about 1 kilogram square centimeter will result in 100-
A kerf 7 of about 200 μm is inserted. When the squeegee 9 (mainly made of urethane rubber) is hit with a pressure of about 1 kilogram square centimeter from the opposite side to the surface of the kerf formed in this way, the kerf 7 which is an initial crack is formed.
Progresses to reach the opposite side, and the glass substrate 6 is divided. FIGS. 4A and 4B are views showing a state in which the double-layered glass plate is cut by the glass plate cutting device of FIG. In addition to the glass substrate, for example, as shown in FIG.
Even if two glass substrates are stacked, such as a liquid crystal display panel, one surface of the glass plate 6b is traced by the surface cutter to form the cut groove 7
Then, the glass plate can be cut by tapping with a squeegee 9 which is a breaker from the opposite glass plate 6a side.
【０００５】[0005]
【発明が解決しようとする課題】この従来のガラス基板
切断装置では、カッタとスキージによる切断において
は、まず、スクライブラインとブレーカのスキージがた
たく位置とが正確に一致していないと、切断面が斜めに
なるという問題がある。In this conventional glass substrate cutting apparatus, in cutting with a cutter and a squeegee, first, if the scribe line and the position where the squeegee of the breaker strikes are not exactly aligned, the cutting surface is There is a problem of becoming diagonal.
【０００６】また、図４に示す液晶表示パネルのような
二枚重ねのガラス板においては、スキージ９でたたく際
に切断すべきガラス板６ｂだけでなく上のガラス板６ａ
まで割ってしまうことしばしばある。特に液晶注入孔部
のように切溝７がシール材１０の上を通るような場合は
上のガラス板６ａもいっしょにクラックが入ってしまう
危険性が大きいという問題もあった。本発明の目的は、
かかる問題を解消すべく、ガラス板の面に対して重直な
切断面で切断出来、かつ二枚重ねのガラス板の一方のみ
切断出来るガラス板切断装置を提供することである。In the case of a double glass plate such as the liquid crystal display panel shown in FIG. 4, not only the glass plate 6b to be cut when hitting with the squeegee 9, but also the upper glass plate 6a.
Often breaks up. In particular, when the cut groove 7 passes over the sealing material 10 like a liquid crystal injection hole, there is a problem that the upper glass plate 6a is also highly likely to be cracked. The purpose of the present invention is
In order to solve such a problem, it is an object of the present invention to provide a glass plate cutting device capable of cutting with a cutting surface that is straight with respect to the surface of a glass plate and capable of cutting only one of the two stacked glass plates.
【０００７】[0007]
【課題を解決するための手段】本発明のガラス板切断装
置は、ガラス板面を一方向に走行するヘッドと、このヘ
ッドに所定の間隔で取付けられるとともに加熱されるカ
ッタ及び冷却されるホイールとを備え、前記カッタによ
り前記ガラス面に切溝である切欠きを形成し、前記冷却
されるホイールを前記切欠き部に接触させて前記ガラス
板を切断することを特徴としている。DISCLOSURE OF THE INVENTION A glass plate cutting apparatus of the present invention comprises a head that travels in one direction on a glass plate surface, a cutter that is attached to the head at a predetermined interval and that is heated, and a wheel that is cooled. And a notch that is a cut groove is formed on the glass surface by the cutter, and the glass plate is cut by bringing the cooled wheel into contact with the notch.
【０００８】[0008]
【実施例】次に、本発明について図面を参照して説明す
る。図１は本発明のガラス板切断装置の一実施例を説明
するための図である。このガラス板切断装置は、熱膨張
差で生ずる熱応力によってガラス板を破断することを利
用したもので、図１に示すように、一方向に走行するヘ
ッド１に加熱されるカッタ２ａと冷却されるホイール３
とを設けたことである。Next, the present invention will be described with reference to the drawings. FIG. 1 is a diagram for explaining an embodiment of the glass sheet cutting device of the present invention. This glass plate cutting device utilizes the fact that a glass plate is broken by a thermal stress caused by a difference in thermal expansion, and as shown in FIG. 1, it is cooled with a cutter 2a heated by a head 1 traveling in one direction. Wheel 3
Is provided.
【０００９】ここで、カッタ２ａは加熱器４によって３
００〜５００°Ｃ程度に加熱され、また、ホイール３は
冷却器５によって０〜１０°Ｃに維持されている。一
方、ここで使用される加熱器４は公知である温風ヒータ
もしくは遠赤外線ヒータを用い、冷却器５は通常の冷凍
器が使用されている。Here, the cutter 2a is moved to 3 by the heater 4.
The wheel 3 is heated to about 00 to 500 ° C, and the wheel 3 is maintained at 0 to 10 ° C by the cooler 5. On the other hand, the heater 4 used here is a well-known warm air heater or far-infrared heater, and the cooler 5 is an ordinary refrigerator.
【００１０】次に、このガラス板切断装置の動作を説明
する。まず、ヘッド１が紙面状の左から右に走行するこ
とによって、カッタ２ａの回転によって、切溝７が形成
されると、同時にガラス板６の表面は熱せられる。この
ことにより切溝７が形成される部分のガラスは熱膨張を
起こす。次に、その部分が冷えないうちに冷却されたホ
イール３の接触により、その部分が急冷され、収縮が起
こす。このときに生ずる熱応力によって機構７がガラス
板６の底面まで伸展し、ついには破断面８で分離され
る。Next, the operation of this glass sheet cutting device will be described. First, when the cutting groove 7 is formed by the rotation of the cutter 2a as the head 1 travels from the left to the right on the paper surface, the surface of the glass plate 6 is simultaneously heated. As a result, the glass in the portion where the cut groove 7 is formed undergoes thermal expansion. Next, due to the contact of the wheel 3 which is cooled before the portion is cooled, the portion is rapidly cooled and contraction occurs. Due to the thermal stress generated at this time, the mechanism 7 extends to the bottom surface of the glass plate 6 and is finally separated at the fracture surface 8.
【００１１】図２は本発明のガラス板切断装置の他の実
施例を説明するための図である。このガラス板切断装置
は、カッタ及びホイールの加熱及び冷却の方法が異なる
だけで原理的には前述の実施例と同じである。すなわ
ち、カッタ２ｂを加熱するために回転軸１２内にヒータ
を埋設したことである。このことによりカッタ２ｂは熱
伝導により加熱され、前述のカッタに比べ、より早く加
熱され、高温が得られ易い。また、ホイール３ａも回転
軸１１は円筒軸であって、この円筒軸に冷却液が供給さ
れるようになっている。このホイール３ａも前述のホイ
ールに比べ、冷却し易く、より低い温度まで冷却され
る。従って、この実施例は、より温度差が得られるの
で、前述の実施例に比べ、より厚いガラス板を破断出来
るという利点がある。FIG. 2 is a view for explaining another embodiment of the glass plate cutting device of the present invention. This glass sheet cutting device is the same as the above-mentioned embodiment in principle except that the method of heating and cooling the cutter and the wheel is different. That is, a heater is embedded in the rotary shaft 12 to heat the cutter 2b. As a result, the cutter 2b is heated by heat conduction, and is heated faster than the above-mentioned cutter, and a high temperature is easily obtained. The rotating shaft 11 of the wheel 3a is also a cylindrical shaft, and the cooling liquid is supplied to this cylindrical shaft. This wheel 3a is also easier to cool than the above-mentioned wheel and is cooled to a lower temperature. Therefore, this embodiment has an advantage that a thicker glass plate can be broken, as compared with the above-mentioned embodiments, because a temperature difference can be obtained more.
【００１２】以上説明したように本発明におけるガラス
板切断装置は、従来の装置に比べ、切溝形成と破断とい
う操作を一つの操作で行うことによってガラス板を切断
出来るので、より早く切断出来る効果もある。As described above, the glass plate cutting apparatus according to the present invention can cut a glass plate by performing the operations of forming a kerf and breaking in one operation, as compared with the conventional apparatus. There is also.
【００１３】[0013]
【発明の効果】以上説明したように本発明のガラス板切
断装置によれば、ガラス板面に切欠きを形成するカッタ
ホイールを加熱し、冷却されたホイールを設けて切欠き
のある部分に接触させ、切欠き部を急熱急冷して大きな
熱応力を生じせしめ、ガラス板を破断するので、押圧方
向による破断面の方向が影響されることなくガラス面に
対してより重直に破断出来るという効果がある。As described above, according to the glass plate cutting apparatus of the present invention, the cutter wheel forming the notch on the glass plate surface is heated, and the cooled wheel is provided to contact the notched portion. Then, the notch part is rapidly heated and rapidly cooled to generate large thermal stress, and the glass plate is broken, so that it is possible to break more straightly with respect to the glass surface without affecting the direction of the fracture surface due to the pressing direction. effective.
【００１４】また、二枚重ねの液晶表示パネルのような
場合でも、一ガラス面の切欠き部に不要な押圧力を与え
ないので、他のガラスまで破断することがない。Even in the case of a two-layer liquid crystal display panel, unnecessary pressing force is not applied to the cutout portion of one glass surface, so that other glass is not broken.
【図１】本発明のガラス板切断装置の一実施例を説明す
るための図である。FIG. 1 is a diagram for explaining an embodiment of a glass plate cutting device of the present invention.
【図２】本発明のガラス板切断装置の他の実施例を説明
するための図である。FIG. 2 is a view for explaining another embodiment of the glass sheet cutting device of the present invention.
【図３】従来のガラス板切断装置の一例を説明するため
の図である。FIG. 3 is a diagram for explaining an example of a conventional glass sheet cutting device.
【図４】図３のガラス板切断装置で二枚重ねガラス板を
切断状態を示す図である。FIG. 4 is a view showing a state in which a double-layered glass plate is cut by the glass plate cutting device of FIG.
１，１ａ ヘッド ２，２ａ，２ｂ カッタ ３，３ａ ホイール ４ 加熱器 ５ 冷却器 ６，６ａ，６ｂ ガラス板 ７ 切溝 ８ 破断面 ９ スキージ １０ シール材 １１，１２ 回転軸 1, 1a Head 2, 2a, 2b Cutter 3, 3a Wheel 4 Heater 5 Cooler 6, 6a, 6b Glass plate 7 Cutting groove 8 Fracture surface 9 Squeegee 10 Sealing material 11, 12 Rotating shaft
Claims (1)
と、このヘッドに所定の間隔で取付けられるとともに加
熱されるカッタ及び冷却されるホイールとを備え、前記
カッタにより前記ガラス面に切溝である切欠きを形成
し、前記冷却されるホイールを前記切欠き部に接触させ
て前記ガラス板を切断することを特徴とするガラス板切
断装置。1. A head that travels in one direction on a glass plate surface, a cutter that is attached to the head at a predetermined interval and that is heated, and a wheel that is cooled are provided, and a cut groove is formed on the glass surface by the cutter. A glass plate cutting device, which cuts the glass plate by forming a notch and bringing the cooled wheel into contact with the notch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3256126A JP2692450B2 (en) | 1991-10-03 | 1991-10-03 | Glass plate cutting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3256126A JP2692450B2 (en) | 1991-10-03 | 1991-10-03 | Glass plate cutting device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0597456A JPH0597456A (en) | 1993-04-20 |
| JP2692450B2 true JP2692450B2 (en) | 1997-12-17 |
Family
ID=17288263
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3256126A Expired - Fee Related JP2692450B2 (en) | 1991-10-03 | 1991-10-03 | Glass plate cutting device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2692450B2 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000281375A (en) * | 1999-03-31 | 2000-10-10 | Nec Corp | Method for cracking glass substrate md cracking device therefor |
| KR101043674B1 (en) * | 2004-05-11 | 2011-06-23 | 엘지디스플레이 주식회사 | Apparatus and method for scribing |
| KR100648499B1 (en) * | 2005-09-30 | 2006-11-23 | 나노전광 주식회사 | Apparatus for cutting a glass-plate |
-
1991
- 1991-10-03 JP JP3256126A patent/JP2692450B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0597456A (en) | 1993-04-20 |
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