JPS58190827A - Method and apparatus for manufacturing glass block - Google Patents

Method and apparatus for manufacturing glass block

Info

Publication number
JPS58190827A
JPS58190827A JP7414182A JP7414182A JPS58190827A JP S58190827 A JPS58190827 A JP S58190827A JP 7414182 A JP7414182 A JP 7414182A JP 7414182 A JP7414182 A JP 7414182A JP S58190827 A JPS58190827 A JP S58190827A
Authority
JP
Japan
Prior art keywords
glass
mold
cast
strip
molten glass
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.)
Granted
Application number
JP7414182A
Other languages
Japanese (ja)
Other versions
JPS6110406B2 (en
Inventor
Tetsuo Sakamoto
哲夫 坂本
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.)
Nippon Electric Glass Co Ltd
Original Assignee
Nippon Electric Glass 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 Nippon Electric Glass Co Ltd filed Critical Nippon Electric Glass Co Ltd
Priority to JP7414182A priority Critical patent/JPS58190827A/en
Publication of JPS58190827A publication Critical patent/JPS58190827A/en
Publication of JPS6110406B2 publication Critical patent/JPS6110406B2/ja
Granted legal-status Critical Current

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C03GLASS; MINERAL OR SLAG WOOL
    • C03BMANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B17/00Forming molten glass by flowing-out, pushing-out, extruding or drawing downwardly or laterally from forming slits or by overflowing over lips
    • C03B17/06Forming glass sheets
    • C03B17/061Forming glass sheets by lateral drawing or extrusion
    • C03B17/062Forming glass sheets by lateral drawing or extrusion combined with flowing onto a solid or gaseous support from which the sheet is drawn
    • CCHEMISTRY; METALLURGY
    • C03GLASS; MINERAL OR SLAG WOOL
    • C03BMANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B19/00Other methods of shaping glass
    • C03B19/02Other methods of shaping glass by casting molten glass, e.g. injection moulding

Abstract

PURPOSE:To manufacture a glass block causing no distortion of an image, by premolding molten glass to the shape of a strip in a shoot whose width is almost equal to the inside width of a mold, feeding the premolded glass to the mold, and horizontally moving the mold in synchronism with the feeding speed while suitably lowering the mold. CONSTITUTION:A gate 12 attached to the feeder 11 of a melting furnace 10 is opened to lead molten glass G to a mold 20 through a shoot 30. The shoot 30 has a rectangular cross-sectional shape, and the width is almost equal to the inside width of the mold 20, so the glass G is premolded into strip glass G' whose width is almost equal to the inside width of the mold 20. The mold 20 is horizontally moved in synchronism with the feeding speed of the glass G' through a horizontally moving table 23 mounted on a vertically moving table 40 to charge the glass G corresponding to one layer into the mold 20 from one end to the other end. When a switch 58 contacts with a stopper 57, the moving direction of the mold 20 is reversed, and the glass G' for the next layer is charged. During this time, by working the table 40, the mold 20 is lowered so as to keep the height of the shoot 30 to the glass surface constant.

Description

【発明の詳細な説明】 本発明はガラスプロ、り、特に放射線始fiF室や機器
室を外部から観もする窓ガラス用の放射紳防睦用ガラス
のVJ M方法及びその装置t<に関するものである。
DETAILED DESCRIPTION OF THE INVENTION The present invention relates to glass processing, and in particular to a VJM method and apparatus for radiation protection glass for window glass for viewing a radiation source FIF room or equipment room from the outside. It is.

該ガラスは放射線を遮断する成分を含有しているが、扁
力な遮へい効果を得るため、その厚みit’ 40cm
に達するものが必要である。
The glass contains a component that blocks radiation, but in order to obtain a flat shielding effect, its thickness is 40 cm.
What is needed is something that can reach this level.

此の柿、厚肉ガラスの成j1影に番41例えばねIJ旧
M(52−121.619号公報に1111示のものが
ある。この従来方法は流出口から流出する浴融カラスを
溝形の鋳型の一端から鋳込むにあたり、ガラス流を鋳型
の導入拡大部に導入し、その流れの断面を導入拡大部の
内面形状に沿って順次連続的に拡大して所望の形状に成
形固化するものである。
For example, there is a method shown in IJ old M (No. 52-121.619 No. 1111) in the production of thick-walled glass. When pouring from one end of a mold, a glass flow is introduced into the introduction expansion part of the mold, and the cross section of the flow is sequentially and continuously expanded along the inner surface shape of the introduction expansion part to form and solidify into the desired shape. It is.

ガラスc′j溶融中十分に攪拌しても、厚肉のガラスブ
ロックのようにガラスttの多い製品を成形する場合は
、脈理と呼ぶガラスの部分的な不均質を生じないように
成形することは姉しい。脈理の部分は他の部分と光の屈
折率が異るので、脈理のあるガラスを通して物体を観察
すると、物体の細部が見知かったり、物体が歪んで見え
たりする。
Even if the glass c′j is sufficiently stirred during melting, when molding a product with a large amount of glass tt, such as a thick glass block, the molding should be done in such a way that local non-uniformity of the glass called striae does not occur. That's like an older sister. The refractive index of light in the striae is different from that in other parts of the glass, so when you observe an object through glass with striae, the details of the object may look familiar or the object may appear distorted.

本発明はこのような点を改良したものである。The present invention improves these points.

本発明は溶融ガラスを鋳型の内幅とほぼ等しい幅のシー
ートにより、帯状に予備成形して鋳型に供給する。鋳型
は帯状ガラスの供給速度と同期して水平に移動させ、鋳
型の一方の端から他方の端に向って一層分の帯状ガラス
を鋳込む。次いで鋳型を引き戻して帯状ガラスを先に鋳
込んだガラスの上に重ね合せる。このとき、先に鋳込ん
だガラスの簡に対するシュートの高さが一定と′/、f
るように鋳型を下19η・するものである。
In the present invention, molten glass is preformed into a belt shape into a sheet having a width approximately equal to the inner width of the mold, and is then supplied to the mold. The mold is moved horizontally in synchronization with the feed rate of the glass ribbon, and one layer of glass ribbon is cast from one end of the mold to the other end. The mold is then pulled back and the glass ribbon is superimposed on top of the previously cast glass. At this time, if the height of the chute relative to the glass plate previously cast is constant, ′/, f
The mold was lowered by 19η· so that

以下図面を用いて説明すれば次の通りである。The following is an explanation using the drawings.

図面はいずれも本発明の実施例を示し、第1図は製造装
置;qの一部を切欠いた側面図、第2図は第1図A、A
視正血図、第8図は鋳込みの手順を示す工程図である。
The drawings all show embodiments of the present invention, and FIG. 1 is a side view with a part of q cut away, and FIG. 2 is a side view of the manufacturing apparatus; FIG.
The normal hemogram, FIG. 8, is a process diagram showing the casting procedure.

溶融炉10のフィーダ11にゲート12を設けてm融ガ
ラスGを断続し取り出した溶融ガラスGをシュート30
により鋳型2oに導く。シュート80は断面形状が爪形
で、鋳型2oの内幅とほぼ等しい=J法に設定しである
。従ってこのシュート30に溶融ガラスGを通ずことに
」:って鋳型2゜の幅とほぼ同じ幅の帯状ガラスG′に
予1IIIj成形することかできる。
A gate 12 is provided in the feeder 11 of the melting furnace 10 to intermittent the molten glass G, and the molten glass G taken out is transferred to the chute 30.
leads to mold 2o. The chute 80 has a claw-shaped cross section and is set to the J method, which is approximately equal to the inner width of the mold 2o. Therefore, by passing the molten glass G through this chute 30, it is possible to pre-form it into a band-shaped glass G' having a width approximately equal to the width of the mold 2°.

次に鋳型20の水平及び上下の移動機構について説明す
る。fi41型20は、ラック21を一体形成するとと
もに、ガイドローラ22を泄゛けた水平移Uノ台23に
固定しである。そしてこの水平移動台23は上下移動台
4・0に1伐っていて、鋳型20は水平と上下の移動が
同時に行われるようになっている。水平移すリ)台23
の下面は上下移動台4oに設けたコロ24で支持され、
固定したレール25にガイドローラ22力)接して水平
移動台23の位frtを規制する。水平移動は上下移動
台4oに取り付けた駆動モータ43の回転をピニオンギ
ヤ41とギヤ42を介してう、り21に伝達される。
Next, a mechanism for moving the mold 20 horizontally and vertically will be explained. In the fi41 type 20, a rack 21 is integrally formed, and a guide roller 22 is fixed to a horizontally moving U base 23 from which the guide roller 22 is removed. This horizontal moving table 23 is provided with a vertical moving table 4.0, so that the mold 20 can be moved horizontally and vertically at the same time. Horizontal transfer) stand 23
The lower surface of is supported by rollers 24 provided on the vertically movable table 4o,
The guide roller 22 contacts the fixed rail 25 to regulate the horizontal movement table 23. For horizontal movement, the rotation of a drive motor 43 attached to the vertically movable table 4o is transmitted to the girder 21 via a pinion gear 41 and a gear 42.

次にuj型2り旧上下移動の機構について説明する。水
平移動台23を設けた上下移動台4oは、その下面に前
後2列ずつ4本の送りネジ51が基台50に螺合して垂
直に設けである。この4本の送りネジ51は夫々ベベル
ギヤ52を介して駆動モータ53に接続されているので
、該モータ53の回転により同ピツチで昇降する。また
、上下移動台40には、外側に複数組のガイドローラ5
4を設けてガイドレール55によって位1?ffiを規
制する。上方にのびる支柱56にはスト、パ57が設け
てあり、水平移動台28が移動して来て鋳型20の側面
に設けたスイッチ58が当ると極性が一5= 変って駆動モータ4・3の回転が逆転し、水平移動台2
3を反対向きに移動さける。
Next, the mechanism for vertical movement of the UJ type 2 will be explained. The vertically movable table 4o provided with the horizontally movable table 23 is provided with four feed screws 51 vertically screwed into the base 50 in two rows in the front and rear on its lower surface. These four feed screws 51 are each connected to a drive motor 53 via a bevel gear 52, so that they are moved up and down at the same pitch by the rotation of the motor 53. Further, the vertical movable table 40 includes a plurality of sets of guide rollers 5 on the outside.
4 and place 1 by the guide rail 55? Regulate ffi. A support 57 extending upward is provided with a strike 57, and when the horizontal moving table 28 moves and hits the switch 58 provided on the side of the mold 20, the polarity changes and the drive motors 4 and 3 The rotation of the horizontal moving table 2 is reversed.
Avoid moving 3 in the opposite direction.

上述した移動機構により、鋳型20を(I′I状ガラス
G′の供給速度と同期して水平移動させ鋳型2゜の側面
の一方から他方に一層分の帯状ガラスG′を鋳込んだ後
、鋳型20の移動を折返させる。同時に鋳型20内のガ
ラス表面に対する前記シーートとの旨さが一定となるよ
うにガラスの垣が増すに従って上下移動台40を下降さ
七、鋳型20内に帯状の溶融ガラスG′を多数層重ね合
わせるものである。
Using the above-mentioned moving mechanism, the mold 20 is horizontally moved in synchronization with the supply speed of the I'I-shaped glass G', and one layer of strip glass G' is cast from one side of the mold 2° to the other. The movement of the mold 20 is reversed. At the same time, the vertical moving table 40 is lowered as the glass wall increases so that the contact between the sheet and the glass surface in the mold 20 is constant. This is made by laminating many layers of glass G'.

第3図は帯状ガラスG′を多数層重ね合わせる鋳込みの
手順を(イ)乃至←)の8工程に分けて説明するための
工程図である。
FIG. 3 is a process diagram for explaining the casting procedure for stacking multiple layers of band-shaped glass G' divided into eight steps (a) to ←).

工程(イ)では、フィーダ11のゲー)12が閉じてい
て浴融ガラスGの供給は遮断されている。鋳型20はシ
ュート30の下端から少し離れた位置で待機している。
In step (a), the gate 12 of the feeder 11 is closed and the supply of the bath molten glass G is cut off. The mold 20 is waiting at a position slightly away from the lower end of the chute 30.

ゲート12を開けるとM融ガラスGがシュート30上を
流れ始めて帯状ガラスJとなる。シュート30は第2M
に示すように、鋳型20の内幅とほぼ等しい幅寸法を有
し、側壁3]を設゛けているが、工程を示す第3図にお
いては、溶融ガラスの流れを示す都合上側壁31を省略
した。
When the gate 12 is opened, the M molten glass G begins to flow on the chute 30 and becomes a ribbon glass J. Shoot 30 is the 2nd M
As shown in FIG. 3, the mold 20 has a width approximately equal to the inner width of the mold 20, and is provided with a side wall 3. However, in FIG. Omitted.

帯状ガラスG′の流れ始めた最初の部分は工程←)から
明らかなように鋳型20の外方に流して鋳型20内に供
給しないでおく。帯状ガラスG′の流れが安定してきた
らシュート30の下端において帯状ガラスヅを切断する
(工程(ハ))。そしてはとんど同時に鋳型20をシュ
ート30の下端に移動して近ずけるとともに鋳型20を
急速に上昇させる。
As is clear from step ←), the initial portion of the glass band G' that begins to flow is flowed outside the mold 20 and is not supplied into the mold 20. When the flow of the glass band G' becomes stable, the glass band G' is cut at the lower end of the chute 30 (step (c)). At the same time, the mold 20 is moved to the lower end of the chute 30, and the mold 20 is rapidly raised.

工程に)において帯状ガラスJの供給が始まり、鋳型2
0をさらに同方向に移動して1層目の帯状ガラスG′を
鋳込む。鋳型20は帯状ガラスJの供給速度と同期して
水平に移動するので工程(ホ)の如く帯状ガラスσを均
等に敷きつめることができる。
In the process), the supply of the ribbon glass J begins, and the mold 2
0 is further moved in the same direction to cast the first layer of band-shaped glass G'. Since the mold 20 moves horizontally in synchronization with the supply speed of the glass strip J, the glass strips σ can be spread evenly as in step (E).

やがて鋳型20がスト、パ57の位置に達してスイッチ
58が接触すると、移動方向を逆向きにして折返す。
When the mold 20 eventually reaches the stop and stop positions 57 and the switch 58 comes into contact, the direction of movement is reversed and turned back.

一方、鋳型20内のガラスは次第に厚みを増してくるの
でガラスの而に対するシュート30との高さを一定に保
つため上下移動台7IOを作動して鋳型20を下降させ
る。
On the other hand, since the glass in the mold 20 gradually increases in thickness, the vertical moving table 7IO is operated to lower the mold 20 in order to maintain a constant height of the chute 30 relative to the glass.

鋳型20の左右上下の移動は水平移動台と上下移動台と
を予め設定されたシーケンスプログラムによって自動的
に操作される。
The horizontal, vertical, and vertical movement of the mold 20 is automatically controlled by a horizontal movement table and a vertical movement table according to a preset sequence program.

鋳^す20の往復移動を多数回行い帯状ガラスG′を重
ね鋳込むにつれてガラスは厚みを増しく工程(へ))、
所定の厚みに達したら充填を終る(工程(ト))。
A process in which the thickness of the glass increases as the glass strips G' are stacked and cast by repeating the reciprocating movement of the casting 20 many times.
Filling ends when a predetermined thickness is reached (process (g)).

鋳込みの完了とともにフィーダ11のゲー)12を閉じ
(工程断))、vj型20を最初の工程(イ)の位置に
停止する。次いで、鋳型20を水平移動台28から列し
移動する方向とは酌交する方向に取出して焼鈍炉に移送
する。焼鈍後、ガラス製品を鋳型20から抜き出して所
望のカラスプロ、りが得られる。
When the casting is completed, the gate 12 of the feeder 11 is closed (process cutoff)), and the vj mold 20 is stopped at the position of the first step (a). Next, the molds 20 are taken out from the horizontal moving table 28 in a direction perpendicular to the direction in which they are lined up and moved, and transferred to an annealing furnace. After annealing, the glass product is extracted from the mold 20 to obtain the desired glass finish.

上述したように本発明は浴融ガラスを帯状に予備成形し
て重ね合せるものであり、折り粗ねた帯状ガラスは温度
分布が均一でそのまま静止状態で溶は合うから、溶融ガ
ラス中に屈折率の異る不均質な脈理か存在してもガラス
の流れ方向に対して平行に、層状に分布するので、ガラ
ス面の垂1白方向から観察すると屈折率の変化がなく、
従って像の歪みを生じない。
As mentioned above, in the present invention, bath molten glass is preformed into strips and stacked on top of each other.The roughly folded strips have a uniform temperature distribution and melt in a stationary state. Even if heterogeneous striae exist, they are distributed in layers parallel to the flow direction of the glass, so there is no change in the refractive index when observed from the vertical direction of the glass surface.
Therefore, no image distortion occurs.

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

図面はいずれも本発明の実施例を示すもので、第1図は
製造装置の一部を切欠いた側血肉、第2図はA、A規正
面図、第8図は鋳込みの工程図である。 G′は帯状の溶融ガラス、llはフィーダ、12はゲー
ト、2011紡型、30はシュート、28は水平移動台
、40は上下移動台である。 特許出願人  日本電気硝子株式会社 代表者  長 崎 阜 − 一〇− 145
The drawings all show embodiments of the present invention; Fig. 1 is a side view of the manufacturing device with a part cut away, Fig. 2 is a front view of A and A, and Fig. 8 is a drawing of the casting process. . G' is a band-shaped molten glass, 11 is a feeder, 12 is a gate, 2011 is a spinning die, 30 is a chute, 28 is a horizontal moving table, and 40 is a vertically moving table. Patent applicant Nippon Electric Glass Co., Ltd. Representative Fu Nagasaki - 10- 145

Claims (2)

【特許請求の範囲】[Claims] (1)  vJ型内に溶)Ad!ガラスを鋳込む方法に
して、浴融炉のフィーダにゲート分設けて浴融カラスを
〜i続し、取り出した溶融カラスを鋳型の内1陥とほぼ
9rシい幅のシュートにより帯状に予備成形する工程と
、鋳型を帯状ガラスのIJ[給速度と同期して水平に移
動させ鋳型の側面の一方から他方に一1η分の帯状ガラ
スを鋳込んだ後、鋳型を引き戻して帯4.(ガラスを最
初に鋳込んだガラスの上に重ね合せる工程と、鋳込んだ
ガラス面に対するシュートの高さが一定となるように鋳
型を昇降する工程と、リボンを所別hム鋳込み後、鋳型
を徐冷炉に移送する取出工程とからなるカラスブロック
の製造方法。
(1) Dissolved in vJ type) Ad! Using the glass casting method, a gate is provided in the feeder of the bath melting furnace to continue the bath melting glass, and the molten glass taken out is preformed into a band shape using one cavity of the mold and a chute approximately 9cm wide. The mold is moved horizontally in synchronization with the IJ feeding speed of the glass strip, and after casting 11η of the glass strip from one side of the mold to the other, the mold is pulled back and the strip 4. (The process of overlaying the glass on top of the glass that was first cast, the process of raising and lowering the mold so that the height of the chute relative to the surface of the cast glass is constant, and the process of placing the ribbon in the mold separately) A method for manufacturing a crow block, which comprises a step of transferring the crow block to a slow cooling furnace.
(2)鋳型内に溶融ガラスを鋳込む装置1qにして、溶
融ガラスの供給を断続するゲートを設けたフ1− イータと、溶融ガラスを帯状、に予(liif成形する
、鋳型の内111Il)とけば等しい幅のシュートと、
シ−トを介して溶11カラスを;jh状にして鋳込む鋳
型を浴融ガラスのFIL給速度と同期して水平に移動さ
せる水平移動台と、鋳型の一方から使方に一層分の帯状
ガラスをU/込んだ後、鋳型を引き戻して帯状ガラスを
先に鋳込んだガラスに市ね合せる1i4r、M型内のガ
ラス面に対するシーートとの高さが一定となるように鋳
型を昇降する上下移動台と、ガラスを所宇足鋳込み後、
鋳型全徐冷炉に移送するIPl、出機構とからなるガラ
スブロックの1111i造装置。
(2) A device 1q for casting molten glass into a mold, which includes a fuser equipped with a gate for intermittent supply of molten glass, and a mold 111Il that preforms the molten glass into a band shape. Shoots of equal width,
A horizontal moving table is used to horizontally move the mold in which the molten glass is cast into a shape through a sheet in synchronization with the FIL feeding speed of the bath molten glass, and a strip of one layer is moved from one side of the mold to the other side. After pouring the glass, pull back the mold and place the ribbon glass on top of the previously cast glass. Raise and lower the mold so that the height of the sheet relative to the glass surface in the M mold is constant. After the moving table and the glass are cast,
1111i production equipment for glass blocks, consisting of an IPl for transferring the mold to an annealing furnace, and a removal mechanism.
JP7414182A 1982-04-30 1982-04-30 Method and apparatus for manufacturing glass block Granted JPS58190827A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7414182A JPS58190827A (en) 1982-04-30 1982-04-30 Method and apparatus for manufacturing glass block

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7414182A JPS58190827A (en) 1982-04-30 1982-04-30 Method and apparatus for manufacturing glass block

Publications (2)

Publication Number Publication Date
JPS58190827A true JPS58190827A (en) 1983-11-07
JPS6110406B2 JPS6110406B2 (en) 1986-03-29

Family

ID=13538597

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7414182A Granted JPS58190827A (en) 1982-04-30 1982-04-30 Method and apparatus for manufacturing glass block

Country Status (1)

Country Link
JP (1) JPS58190827A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2831158A1 (en) * 2001-10-24 2003-04-25 Corning Inc Device for fabrication of molded glass components made up of a molten glass feed system and two mold parts that can be displaced to form a mold cavity of variable volume
WO2017027784A1 (en) * 2015-08-13 2017-02-16 Corning Incorporated Method and system for printing 3d objects
CN110035977A (en) * 2016-11-25 2019-07-19 韩国水力原子力株式会社 It is used to form the mold support device and molten homogeneous solidified body forming method of molten homogeneous solidified body

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2831158A1 (en) * 2001-10-24 2003-04-25 Corning Inc Device for fabrication of molded glass components made up of a molten glass feed system and two mold parts that can be displaced to form a mold cavity of variable volume
WO2017027784A1 (en) * 2015-08-13 2017-02-16 Corning Incorporated Method and system for printing 3d objects
CN107922234A (en) * 2015-08-13 2018-04-17 康宁股份有限公司 For printing the method and system of 3D objects
US11065860B2 (en) 2015-08-13 2021-07-20 Corning Incorporated Method and system for printing 3D objects
CN110035977A (en) * 2016-11-25 2019-07-19 韩国水力原子力株式会社 It is used to form the mold support device and molten homogeneous solidified body forming method of molten homogeneous solidified body
US11306017B2 (en) * 2016-11-25 2022-04-19 Korea Hydro & Nuclear Power Co.; LTD Mold supporting device for forming uniform molten solidified body, and method for forming uniform molten solidified body

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