JP3095828B2 - Method and apparatus for cutting and discharging molten glass - Google Patents

Method and apparatus for cutting and discharging molten glass

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Publication number
JP3095828B2
JP3095828B2 JP03268995A JP26899591A JP3095828B2 JP 3095828 B2 JP3095828 B2 JP 3095828B2 JP 03268995 A JP03268995 A JP 03268995A JP 26899591 A JP26899591 A JP 26899591A JP 3095828 B2 JP3095828 B2 JP 3095828B2
Authority
JP
Japan
Prior art keywords
molten glass
outflow path
cutting
lump
cut
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
Application number
JP03268995A
Other languages
Japanese (ja)
Other versions
JPH0578134A (en
Inventor
孝 池内
俊明 林
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Olympus Corp
Original Assignee
Olympus Optic Co Ltd
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 Olympus Optic Co Ltd filed Critical Olympus Optic Co Ltd
Priority to JP03268995A priority Critical patent/JP3095828B2/en
Publication of JPH0578134A publication Critical patent/JPH0578134A/en
Application granted granted Critical
Publication of JP3095828B2 publication Critical patent/JP3095828B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B7/00—Distributors for the molten glass; Means for taking-off charges of molten glass; Producing the gob, e.g. controlling the gob shape, weight or delivery tact
    • C03B7/10—Cutting-off or severing the glass flow with the aid of knives or scissors or non-contacting cutting means, e.g. a gas jet; Construction of the blades used

Description

【発明の詳細な説明】DETAILED DESCRIPTION OF THE INVENTION

【０００１】[0001]

【産業上の利用分野】本発明は、ガラス成形品を成形す
る際の溶融ガラス塊を得るための溶融ガラスの切断・排
出方法と装置に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method and an apparatus for cutting and discharging molten glass for obtaining a molten glass lump when forming a glass molded product.

【０００２】[0002]

【従来の技術】最近、ガラス素材を加熱し、押圧成形す
るだけで研削、研磨加工を必要としない高い形状精度と
表面品質を有するガラス成形品（プレスレンズ）を製造
する方法が確立されつつある。2. Description of the Related Art Recently, a method for producing a glass molded product (press lens) having high shape accuracy and surface quality which does not require grinding and polishing by simply heating and pressing and molding a glass material has been established. .

【０００３】上記製造方法には、図７に示すように、溶
融ガラス塊２１を成形型２２で直接押圧成形してガラス
成形品を得るダイレクトプレス方式がある。かかる方法
にあっては、従来、図８に示すように、図示を省略した
ガラス溶融炉のオリフィス２３から粘土１０〜１０3 ポ
アズの溶融ガラス２４を流出させ、流出した溶融ガラス
２４を一対の板状シャー２５，２６にて切断し、溶融ガ
ラス塊２１を得ていた。As shown in FIG. 7, the production method includes a direct press method in which a molten glass lump 21 is directly pressed and molded by a molding die 22 to obtain a glass molded product. In such a method, conventionally, as shown in FIG. 8, a molten glass 24 of clay 10 to 10 3 poise flows out of an orifice 23 of a glass melting furnace (not shown), and the flowed molten glass 24 is separated into a pair of plates. It was cut by the shears 25 and 26 to obtain a molten glass lump 21.

【０００４】また、特開昭６３−２４８７２７号公報に
は、オリフィスから流下させた溶融ガラスを、その流下
方向と直交する方向からリング状の胴型シャーと成形型
により溶融ガラスの下端部に存在するシャーマーク部分
が含まれないように切断して溶融ガラス塊を得る方法が
開示されている。この溶融ガラス塊は、上記胴型シャー
内の成形型と上記成形型とで押圧成形され、外周部のみ
シャーマークが生じたガラス成形品が得られる。Japanese Patent Application Laid-Open No. 63-248727 discloses that a molten glass flowing down from an orifice is provided at a lower end portion of the molten glass by a ring-shaped body shear and a molding die from a direction perpendicular to the flowing down direction. A method for obtaining a molten glass lump by cutting so as not to include a shear mark portion is disclosed. This molten glass lump is press-molded by the molding die in the barrel mold shear and the molding die to obtain a glass molded product having a shear mark only on the outer peripheral portion.

【０００５】一方、溶融ガラス塊を用いず、例えば特公
昭６１−３２２６３号公報に開示されるように、所望の
ガラス成形品の形状に近似する形状を有するプリフォー
ムを用いる方法がある。かかるプリフォームは、ガラス
溶融物から棒状ガラスを製造した後、所要の長さに切断
し、所要の形状まで研削、研磨加工を施して得ている。On the other hand, there is a method in which a preform having a shape similar to a desired glass molded product is used without using a molten glass lump, as disclosed in, for example, Japanese Patent Publication No. 61-32263. Such a preform is obtained by manufacturing a rod-shaped glass from a glass melt, cutting it into a required length, and grinding and polishing to a required shape.

【０００６】[0006]

【発明が解決しようとする課題】しかし、図８に示すよ
うな一対の板状シャー２５，２６にて切断して得た溶融
ガラス塊２１には、図７，８にて示すごとく、溶融ガラ
ス２４を切断した際に溶融ガラス塊２１の上下部（切断
部）にシャーマーク２７と称される空気の小泡が不可避
的に巻き込まれるという極めて大きな問題があった。そ
のために、成形後のガラス成形品の機能面にシャーマー
ク２７が消えずに残り、かかる理由からダイレクトプレ
ス方式は多くの利点を有しながらも、後加工が不必要な
ガラス成形品の製造方法として顧みられなかった。However, as shown in FIGS. 7 and 8, the molten glass block 21 obtained by cutting with a pair of plate shears 25 and 26 as shown in FIG. There is a very serious problem in that when the glass 24 is cut, small air bubbles called shear marks 27 are inevitably caught in the upper and lower portions (cut portions) of the molten glass lump 21. For this reason, the shear mark 27 remains on the functional surface of the molded glass article after molding, and for this reason, the direct press method has many advantages but does not require post-processing. Was not respected.

【０００７】また、特開昭６３−２４８７２７号公報に
記載された胴型シャーを用いて溶融ガラス塊を得る方法
にあっては、胴型シャーと溶融ガラスとの融着を防止す
るために胴型シャーをガラスの転移点以下の比較的低温
領域に保持する必要があるとともに、成形型の温度をガ
ラスの転移点あるいはそれ以上の温度領域とする必要が
あるため、胴型シャーと成形型の温度制御機構が複雑と
なり、機械コストの増大や品質の劣化をもたらす問題点
があった。さらに、溶融ガラスの下端部に存在するシャ
ーマーク部分を成形毎に切断して棄てるため、溶融ガラ
スの無駄が生じる問題点があった。Further, in the method of obtaining a molten glass lump using a barrel shear described in Japanese Patent Application Laid-Open No. 63-248727, a method for preventing fusion between the barrel shear and the molten glass is disclosed. It is necessary to keep the mold shear in a relatively low temperature region below the glass transition point, and it is necessary to keep the temperature of the mold at or above the glass transition point. There has been a problem that the temperature control mechanism becomes complicated, resulting in an increase in machine cost and deterioration in quality. Furthermore, since the shear mark portion existing at the lower end of the molten glass is cut and discarded at each molding, there is a problem that the molten glass is wasted.

【０００８】一方、特公昭６１−３２２６３号公報のプ
リフォームは、研削、研磨加工して得ているため、プリ
フォームが、高価なものとなっていた。また、ガラス成
形品を成形する際にプリフォームを再加熱しなければな
らず、成形時間が長くなっていた。On the other hand, the preform disclosed in JP-B-61-32263 is obtained by grinding and polishing, so that the preform is expensive. In addition, the preform had to be reheated when molding the glass molded article, and the molding time was long.

【０００９】本発明は、上記従来の問題点に鑑みてなさ
れたもので、工程を大幅に簡素化できるとともに短時間
成形が可能で、後加工を不要とした高精度のガラス成形
品を安価に製造できるダイレクトプレス方式に使用で
き、ガラス成形品にシャーマーク発生させることなく、
かつ切断毎に溶融ガラスの一部を捨てる無駄をなくした
溶融ガラスの切断・排出方法と装置を提供することを目
的とする。The present invention has been made in view of the above-mentioned conventional problems, and can greatly simplify a process and can be formed in a short period of time. It can be used in the direct press method that can be manufactured, without generating shear marks on glass molded products,
Further, it is an object of the present invention to provide a method and an apparatus for cutting and discharging molten glass in which a part of the molten glass is discarded every time cutting is performed.

【００１０】[0010]

【課題を解決するための手段】上記目的を達成するため
に、本発明の溶融ガラスの切断・排出方法は、溶融ガラ
スをルツボの流出経路に流出させ、流出経路部中に流出
経路を開閉すべく設けた切断部材を開閉して溶融ガラス
を切断し、ついで切断した溶融ガラス塊を下方に誘導し
つつ溶融ガラス塊を流出経路から排出するこことした。In order to achieve the above object, a method for cutting and discharging molten glass according to the present invention is to discharge molten glass to an outflow path of a crucible and to open and close the outflow path in an outflow path section. The molten glass is cut out by opening and closing a cutting member provided to cut the molten glass, and then the molten glass lump is discharged from the outflow path while guiding the cut molten glass lump downward.

【００１１】また、本発明の溶融ガラスの切断・排出装
置は、図１に示すように、ルツボ１の下部に形成した溶
融ガラス２の流出経路部３の途中に、流出経路３ａを開
閉すべく移動自在に溶融ガラス２の切断部材４を設ける
とともに、切断した溶融ガラス塊を流出経路３ａから外
部に排出する排出手段を流出経路部３または切断部材４
に設けて構成した。なお、図中６は、流出経路部３を含
むルツボ１の外周部に配置した加熱ヒータである。As shown in FIG. 1, the molten glass cutting / discharging apparatus according to the present invention opens and closes an outflow path 3a in the middle of an outflow path 3 of a molten glass 2 formed below a crucible 1. The cutting member 4 for the molten glass 2 is provided so as to be movable, and the discharging means for discharging the cut molten glass lump to the outside from the outflow path 3a is provided by the outflow path section 3 or the cutting member 4.
And was configured. In the drawing, reference numeral 6 denotes a heater arranged on the outer periphery of the crucible 1 including the outflow path 3.

【００１２】[0012]

【作用】上記のように構成された溶融ガラスの切断・排
出方法と装置にあっては、溶融ガラス２が流出経路３ａ
を流下する際、図２に示すように、この溶融ガラス２を
分断して所定量の溶融ガラス塊２ａを形成すべく、切断
部材４が所定の時間間隔と速度で流出経路３ａを開閉す
る。この切断部材４の開閉は、空気中ではなく溶融ガラ
ス２で満された流出経路３ａで行われるので、切断部材
４が溶融ガラス２を切断する際に空気の巻き込みが生ぜ
ず、シャーマークのない良好な外観品質を有する溶融ガ
ラス塊２ａが形成される。そして、排出手段は、溶融ガ
ラス塊２ａを下方に移動させ、流出経路３ａから確実に
排出する。According to the method and apparatus for cutting and discharging molten glass constructed as described above, the molten glass 2 flows out of the outflow path 3a.
As shown in FIG. 2, the cutting member 4 opens and closes the outflow path 3a at predetermined time intervals and at a predetermined speed so as to cut the molten glass 2 to form a predetermined amount of molten glass lump 2a. Since the opening and closing of the cutting member 4 is performed not in the air but in the outflow path 3 a filled with the molten glass 2, when the cutting member 4 cuts the molten glass 2, no entrainment of air occurs and there is no shear mark. A molten glass lump 2a having good appearance quality is formed. Then, the discharging means moves the molten glass lump 2a downward, and reliably discharges the molten glass lump 2a from the outflow path 3a.

【００１３】[0013]

【実施例１】本発明に係る溶融ガラスの切断・排出装置
の実施例１を図３を用いて説明すると、ルツボ１には、
下部に溶融ガラス２の流出経路部３が形成されている。
流出経路部３には、ルツボ１の下端に開口した流出経路
部３ａが形成されるとともに、一対の切断部材４，４、
防振材７および振動子８が設置されている。Embodiment 1 A first embodiment of a molten glass cutting and discharging apparatus according to the present invention will be described with reference to FIG.
An outflow path 3 for the molten glass 2 is formed at a lower portion.
The outflow path 3 is formed with an outflow path 3a opened at the lower end of the crucible 1 and a pair of cutting members 4, 4,.
A vibration isolator 7 and a vibrator 8 are provided.

【００１４】一対の切断部材４，４は、流出経路３ａを
流下する溶融ガラス２を切断するもので、流出経路部３
の途中に流出経路部３に対して摺動自在に対向配置され
ており、それぞれ駆動軸５，５を介して図示しない駆動
源に連結され、駆動源の作動により流出経路３ａを開閉
すべく接近・離反となっている。防振材７は、切断部材
４の下方で流出経路部３の途中に設けられている。振動
子８は、防振材７の下方の流出経路部３の外周に取付け
られており、超音波発振源９と連結されている。なお、
図中６で示すものは、ガラスをルツボ１内で溶融すると
ともに、流出経路部３を加熱するために、ルツボの全外
周部に配置した加熱ヒータである。The pair of cutting members 4 and 4 are for cutting the molten glass 2 flowing down the outflow path 3a.
Are slidably opposed to the outflow path portion 3 in the middle of the flow path, are respectively connected to a drive source (not shown) via the drive shafts 5 and 5, and approach to open and close the outflow path 3a by operation of the drive source.・ It has been separated. The vibration isolator 7 is provided below the cutting member 4 and in the middle of the outflow path 3. The vibrator 8 is attached to the outer periphery of the outflow path section 3 below the vibration isolator 7, and is connected to the ultrasonic oscillation source 9. In addition,
Reference numeral 6 in the figure denotes a heater arranged on the entire outer periphery of the crucible for melting the glass in the crucible 1 and heating the outflow path 3.

【００１５】次に、上記装置による溶融ガラスの切断・
排出方法を図３から図５を用いて説明すると、まず、加
熱ヒータ６により溶融したルツボ１内の溶融ガラス２を
流出経路３に流入する。この時、一対の切断部材４，４
は開状態になっている。所定量の溶融ガラス２が切断部
材４を通過した時、一対の切断部材４，４を流出経路３
ａ内にそれれぞれ前進させて閉状態とし、溶融ガラス２
を切断し溶融ガラス塊２ａを形成する。そして、超音波
発振源９により発生する超音波振動が振動子８によって
防振材７より下方の流出経路部３に伝えられることによ
り、溶融ガラス塊２ａを流出経路３ａの下端から排出す
る。Next, the molten glass is cut by the above-described apparatus.
The discharging method will be described with reference to FIGS. 3 to 5. First, the molten glass 2 in the crucible 1 melted by the heater 6 flows into the outflow path 3. At this time, a pair of cutting members 4, 4
Is open. When a predetermined amount of molten glass 2 has passed through the cutting member 4, the pair of cutting members 4
a into the closed state, and the molten glass 2
Is cut to form a molten glass lump 2a. Then, the ultrasonic vibration generated by the ultrasonic oscillation source 9 is transmitted by the vibrator 8 to the outflow path portion 3 below the vibration isolator 7, thereby discharging the molten glass lump 2 a from the lower end of the outflow path 3 a.

【００１６】本実施例によれば、溶融ガラス２の切断
は、溶融ガラス２で充填された流出経路３ａの内部で行
われるので切断時に空気を巻き込むことがなく、シャー
マークのない溶融ガラス塊２ａを形成することができ
る。また、流出経路部３も加熱ヒータ６で加熱されてい
るので、流出経路３ａ内において溶融ガラス２の流動性
を安定的に維持することができる。さらに、溶融ガラス
塊２ａの上部は密閉状態となっており溶融ガラス塊２ａ
は落下しずらいが、振動子８により流出経路部３が振動
して強制的に落下させられるので、溶融ガラス塊２ａの
排出を安定して確実に行うことができる。また、防振材
７により、防振材７から上方の流出経路部３の振動は防
止されるので、切断部材４を通過する溶融ガラス２の量
を安定して一定に制御でき、所定量の溶融ガラス塊を得
ることができる。According to this embodiment, since the molten glass 2 is cut inside the outflow path 3a filled with the molten glass 2, air is not entrained at the time of cutting, and the molten glass lump 2a without shear marks is cut. Can be formed. Since the outflow path 3 is also heated by the heater 6, the flowability of the molten glass 2 can be stably maintained in the outflow path 3a. Furthermore, the upper part of the molten glass lump 2a is in a closed state,
Is hard to fall, but the outflow path 3 is vibrated by the vibrator 8 and is forcibly dropped, so that the molten glass lump 2a can be stably and reliably discharged. Also, since the vibration of the outflow path portion 3 above the vibration isolator 7 is prevented by the vibration isolator 7, the amount of the molten glass 2 passing through the cutting member 4 can be controlled stably and constant, and A molten glass lump can be obtained.

【００１７】[0017]

【実施例２】図６は、本発明に係る溶融ガラスの切断・
排出装置の実施例２を示す断面図で、流出経路部３の途
中に単刃の切断部材１０が設けられている。[Embodiment 2] FIG. 6 is a diagram showing cutting and cutting of molten glass according to the present invention.
FIG. 9 is a cross-sectional view illustrating a second embodiment of the discharge device, in which a single-blade cutting member 10 is provided in the middle of the outflow path 3.

【００１８】切断部材１０は、上記実施例１と同様に駆
動軸１１を介して図示しない駆動源に連結され、流出経
路３ａを開閉すべく前後動自在に設けられている。切断
部材１０の内部には、Ｎ2 チャンネル１２が形成されて
いる。Ｎ2 チャンネル１２の一方の開口は、切断部材１
０が流出経路３ａを閉状態とした時に流出経路３ａと連
通すべく切断部材１０の下面に形成され、他方の開口
は、駆動軸１１内部に形成した通孔１１ａと連通すべく
切断１０の側面に形成されている。通孔１１ａは、図示
しないＮ2 供給源に接続され、通孔１１ａ、Ｎ2 チャン
ネル１２を通して切断部材１０下方の流出経路３内にＮ
2 ガスを供給できるようになっている。また、流出経路
３ａの内周部には、切断部材１０の先端部を受けるため
の切り欠き１３が形成されている。The cutting member 10 is connected to a drive source (not shown) via a drive shaft 11 in the same manner as in the first embodiment, and is provided to be movable back and forth to open and close the outflow path 3a. An N 2 channel 12 is formed inside the cutting member 10. One opening of the N 2 channel 12 is provided with the cutting member 1.
0 is formed on the lower surface of the cutting member 10 to communicate with the outflow path 3a when the outflow path 3a is closed, and the other opening is a side surface of the cutting 10 to communicate with the through hole 11a formed inside the drive shaft 11. Is formed. The through-hole 11a is connected to an N 2 supply source (not shown), and N through the through-hole 11a and the N 2 channel 12 into the outflow path 3 below the cutting member 10.
Two gas can be supplied. A notch 13 for receiving the tip of the cutting member 10 is formed in the inner peripheral portion of the outflow path 3a.

【００１９】次に、上記装置による溶融ガラスの切断・
排出方法を説明すると、上記実施例１と同様に、所定量
の溶融ガラス２が切断部材１０を通過した時、切断部材
１０を前進させてその先端部を切り欠き１３と当接して
停止し、流出経路３ａを閉状態として溶融ガラスを切断
し溶融ガラス塊２ａを形成する。そして、Ｎ2 チャンネ
ル１２から供給されるＮ2 ガス圧によって、溶融ガラス
塊２ａを安定して流出経路３ａの下端から排出する。こ
の排出の時、Ｎ2 ガスは非酸化性であるため、溶融ガラ
ス塊２ａに酸化等の影響を与えることはなない。また、
Ｎ2 ガスは溶融ガラス２のガラス軟化点以上に制御され
ているので、溶融ガラスに温度変化を与えることはな
い。Next, the molten glass is cut by the above-described apparatus.
Explaining the discharging method, as in the first embodiment, when a predetermined amount of the molten glass 2 has passed through the cutting member 10, the cutting member 10 is advanced, and the tip thereof contacts the notch 13 and stops. With the outflow path 3a closed, the molten glass is cut to form a molten glass lump 2a. Then, the molten glass lump 2a is stably discharged from the lower end of the outflow path 3a by the N 2 gas pressure supplied from the N 2 channel 12. At the time of this discharge, since the N 2 gas is non-oxidizing, it does not affect the molten glass lump 2a by oxidation or the like. Also,
Since the N 2 gas is controlled to be higher than the glass softening point of the molten glass 2, the temperature does not change in the molten glass.

【００２０】本実施例によれば、単刃の切断部材１０を
用いているので、切断部の構造を簡略化できる。また、
排出手段として、溶融ガラス塊２ａにガス圧を直接作用
させる構成を採ったので、確実に溶融ガラス２ａの排出
を行うことができる。According to this embodiment, since the single-blade cutting member 10 is used, the structure of the cutting portion can be simplified. Also,
As the discharging means is configured to apply a gas pressure directly to the molten glass lump 2a, the molten glass 2a can be reliably discharged.

【００２１】なお、本実施例においては、排出手段にＮ
2 ガスを用いた場合について説明したが、溶融ガラスに
酸化等の影響を与えることがなければ、アルゴンガス等
の不活性ガスを用いて実施することができる。In this embodiment, the discharge means is N
The case where two gases are used has been described. However, as long as the molten glass is not affected by oxidation or the like, it can be performed using an inert gas such as an argon gas.

【００２２】[0022]

【発明の効果】以上のように、本発明の溶融ガラスの切
断・排出方法と装置によれば、溶融ガラスは、溶融ガラ
スで満された流出経路内で外気と遮断された状態で切断
され、溶融ガラス塊を形成することができるとともに、
溶融ガラス塊を強制的に流出経路から排出する排出手段
を設けたので、シャーマークのない外観品質の良好なガ
ラス成形品を短時間にかつ経済的に行うことができる。
また、ルツボ、流出経路および切断部材は、装置の構造
上、全て同じ温度に制御されるため、切断部材と溶融ガ
ラスとの融着が防止できる。As described above, according to the method and apparatus for cutting and discharging molten glass of the present invention, the molten glass is cut in a flow path filled with the molten glass while being cut off from the outside air. Able to form a molten glass lump,
Since the discharge means for forcibly discharging the molten glass lump from the outflow path is provided, a glass molded article having good appearance quality without shear marks can be economically produced in a short time.
Further, since the crucible, the outflow path, and the cutting member are all controlled to the same temperature due to the structure of the apparatus, fusion of the cutting member and the molten glass can be prevented.

【図面の簡単な説明】[Brief description of the drawings]

【図１】本発明の溶融ガラスの切断・排出装置の概念図
である。FIG. 1 is a conceptual diagram of an apparatus for cutting and discharging molten glass of the present invention.

【図２】本発明の溶融ガラスの切断・排出装置における
溶融ガラスの切断時の断面図である。FIG. 2 is a sectional view of the molten glass cutting / discharging apparatus of the present invention when the molten glass is cut.

【図３】本発明の溶融ガラス切断・排出装置の実施例１
を示す断面図である。FIG. 3 is a first embodiment of a molten glass cutting / discharging apparatus according to the present invention.
FIG.

【図４】本発明の実施例１における溶融ガラスの切断時
の状態を示す断面図である。FIG. 4 is a cross-sectional view showing a state when cutting molten glass in Example 1 of the present invention.

【図５】本発明の実施例１における溶融ガラスの排出時
の状態を示す断面図である。FIG. 5 is a cross-sectional view showing a state at the time of discharging molten glass in Example 1 of the present invention.

【図６】本発明の溶融ガラスの切断・排出装置の実施例
２を示す断面図である。FIG. 6 is a sectional view showing Embodiment 2 of the apparatus for cutting and discharging molten glass of the present invention.

【図７】従来技術により形成した溶融ガラス塊を示す断
面図である。FIG. 7 is a cross-sectional view showing a molten glass lump formed by a conventional technique.

【図８】従来の溶融ガラス切断状態を示す断面図であ
る。FIG. 8 is a sectional view showing a conventional molten glass cutting state.

【符号の説明】[Explanation of symbols]

１ ルツボ ２ 溶融ガラス ２ａ 溶融ガラス塊 ３ 流出経路部 ３ａ 流出経路 ４，１０ 切断部材 ７ 防振材 ８ 振動子 １２ Ｎ2 チャンネルDESCRIPTION OF SYMBOLS 1 Crucible 2 Molten glass 2a Molten glass lump 3 Outflow path part 3a Outflow path 4,10 Cutting member 7 Vibration-proof material 8 Vibrator 12 N 2 channel

───────────────────────────────────────────────────── フロントページの続き (56)参考文献 特開 平４−321527（ＪＰ，Ａ) 特開 昭62−216925（ＪＰ，Ａ) 特開 昭63−248727（ＪＰ，Ａ) 特開 昭61−32263（ＪＰ，Ａ) (58)調査した分野(Int.Cl.7，ＤＢ名) C03B 7/10 - 7/12 C03B 11/00 ──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A-4-321527 (JP, A) JP-A-62-216925 (JP, A) JP-A-63-248727 (JP, A) JP-A 61-216727 32263 (JP, A) (58) Field surveyed (Int. Cl. 7 , DB name) C03B 7/ 10-7/12 C03B 11/00

Claims (2)

(57)【特許請求の範囲】(57) [Claims] 【請求項１】 溶融ガラスをルツボの流出経路に流出さ
せ、流出経路部中に流出経路を開閉すべく設けた切断部
材を開閉して溶融ガラスを切断し、ついで切断した溶融
ガラス塊を下方に誘導しつつ溶融ガラス塊を流出経路か
ら排出することを特徴とする溶融ガラスの切断・排出方
法。1. A molten glass is caused to flow out of an outflow path of a crucible, a cutting member provided in the outflow path portion for opening and closing the outflow path is opened and closed to cut the molten glass, and then the cut molten glass lump is lowered. A method for cutting and discharging molten glass, wherein the molten glass lump is discharged from an outflow path while being guided. 【請求項２】 ルツボの下部に設けた溶融ガラスの流出
経路部中に、流出経路を開閉すべく移動自在に溶融ガラ
スの切断部材を設けるとともに、切断した溶融ガラス塊
の排出手段を流出経路部または切断部材に設けたことを
特徴とする溶融ガラスの切断・排出装置。2. A molten glass cutting member movably provided to open and close the outflow path is provided in a molten glass outflow path section provided below the crucible, and discharge means for the cut molten glass lump is provided in the outflow path section. Alternatively, a molten glass cutting / discharging device provided on a cutting member.
JP03268995A 1991-09-20 1991-09-20 Method and apparatus for cutting and discharging molten glass Expired - Fee Related JP3095828B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP03268995A JP3095828B2 (en) 1991-09-20 1991-09-20 Method and apparatus for cutting and discharging molten glass

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP03268995A JP3095828B2 (en) 1991-09-20 1991-09-20 Method and apparatus for cutting and discharging molten glass

Publications (2)

Publication Number Publication Date
JPH0578134A JPH0578134A (en) 1993-03-30
JP3095828B2 true JP3095828B2 (en) 2000-10-10

Family

ID=17466204

Family Applications (1)

Application Number Title Priority Date Filing Date
JP03268995A Expired - Fee Related JP3095828B2 (en) 1991-09-20 1991-09-20 Method and apparatus for cutting and discharging molten glass

Country Status (1)

Country Link
JP (1) JP3095828B2 (en)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5762673A (en) * 1997-01-24 1998-06-09 Hoya Precision Inc. Method of manufacturing glass optical elements
KR101698065B1 (en) * 2016-03-28 2017-01-19 한국해양과학기술원 The method of placement for armor unit

Also Published As

Publication number Publication date
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