JPH0417541Y2 - - Google Patents
Info
- Publication number
- JPH0417541Y2 JPH0417541Y2 JP1528488U JP1528488U JPH0417541Y2 JP H0417541 Y2 JPH0417541 Y2 JP H0417541Y2 JP 1528488 U JP1528488 U JP 1528488U JP 1528488 U JP1528488 U JP 1528488U JP H0417541 Y2 JPH0417541 Y2 JP H0417541Y2
- Authority
- JP
- Japan
- Prior art keywords
- furnace
- sleeve
- glass
- catenary
- matsufuru
- 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
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 21
- 239000011521 glass Substances 0.000 claims description 17
- 238000001816 cooling Methods 0.000 claims description 13
- 239000006060 molten glass Substances 0.000 claims description 13
- 238000010521 absorption reaction Methods 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 238000002485 combustion reaction Methods 0.000 description 3
- 235000008331 Pinus X rigitaeda Nutrition 0.000 description 2
- 235000011613 Pinus brutia Nutrition 0.000 description 2
- 241000018646 Pinus brutia Species 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000003779 heat-resistant material Substances 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 239000008400 supply water Substances 0.000 description 1
Landscapes
- Re-Forming, After-Treatment, Cutting And Transporting Of Glass Products (AREA)
- Muffle Furnaces And Rotary Kilns (AREA)
Description
【考案の詳細な説明】
〔考案の目的〕
（産業上の利用分野）
本考案は、ダンナー方式のガラス管引成形にお
いて、水冷ジヤケツトによりマツフル炉内を温度
調整するガラス管の成形装置に関する。[Detailed Description of the Invention] [Purpose of the Invention] (Field of Industrial Application) The present invention relates to a glass tube forming apparatus that adjusts the temperature inside the Matsufuru furnace using a water cooling jacket in Danner type glass tube drawing forming.
（従来の技術）
従来ダンナー式ガラス管引装置によるガラス管
の成形は、ガラス溶融炉のフオアハースで適当な
粘性に調整された溶融ガラスがトラフで流量調整
されてスリーブ上に供給され、傾斜したスリーブ
の回転運動によつて巻きとられ、このスリーブ先
端からブローエアーが導入されたガラスが管引機
で引つ張られてガラス管を成形する。一般に溶融
ガラスが固化にいたるまでの不定形部（以下カテ
ナリーと称す）の温度がガラス管の外径、肉厚等
の品質に大きく影響することは周知である。(Prior art) In conventional forming of glass tubes using a Danner-type glass tube drawing device, molten glass is adjusted to an appropriate viscosity in the front hearth of a glass melting furnace, and the flow rate is adjusted in a trough, and the molten glass is supplied onto a sleeve. Blow air is introduced from the tip of the sleeve, and the glass is pulled by a tube drawing machine to form a glass tube. It is generally known that the temperature of an irregularly shaped part (hereinafter referred to as a catenary) during which molten glass solidifies greatly affects the quality of the glass tube, such as its outer diameter and wall thickness.
従来、カテナリー部の温度調整はマツフル炉の
前方に配設したダンパーを上下に移動させて行な
うが、マツフル炉内の雰囲気温度を燃焼バーナ等
を用いて調整するか、あるいはガラスを直接加熱
している燃焼バーナを調整して行なうかのいずれ
かの方法がとられてきた。また実願昭61−186726
には、マツフル炉前面部に移動自在な水冷ジヤケ
ツトを設けたものが記載されている。 Conventionally, the temperature in the catenary was adjusted by moving a damper placed at the front of the Matsufuru furnace up and down. One of the methods used has been to adjust the combustion burner in use. Also, Jitsugan Showa 61-186726
describes a Matsuful furnace equipped with a movable water-cooled jacket on the front side.
（考案が解決しようとする問題点）
ダンパーを上下に移動する方法では調整に限度
があり、外部からの冷気流による外乱によつて雰
囲気温度が変動し安定しない状態となる。燃焼バ
ーナを用いて雰囲気温度を調整する方法では、ガ
ラスへの温度応答性がわるい。また燃焼バーナを
用いて直接加熱調整する方法では、バーナの調整
が難しくバーナによる炎や風がスリーブ上のガラ
スに当ると凹凸ができ、カテナリーが安定しな
い。実願昭61−186726の方法ではスリーブチツプ
部分の温度調整はできるが、カテナリー全体を所
定どおり制御できないことがある。(Problems that the invention aims to solve) The method of moving the damper up and down has a limit to its adjustment, and the ambient temperature fluctuates due to disturbances caused by cold air flow from the outside, resulting in an unstable state. The method of adjusting the ambient temperature using a combustion burner has poor temperature response to glass. In addition, in the method of directly adjusting heating using a combustion burner, it is difficult to adjust the burner, and when the flame and wind from the burner hit the glass on the sleeve, unevenness is created, making the catenary unstable. Although the method disclosed in Utility Model Application No. 61-186726 allows temperature adjustment of the sleeve tip, it may not be possible to control the entire catenary as specified.
本考案は上記の問題を解決するためになされた
ものでマツフル炉内の雰囲気、特にスリーブチツ
プ部とヒートカバー部およびアニーラー側壁近傍
のカテナリーの温度を調整可能となるように構成
したガラス管の成形装置を提供することを目的と
する。 The present invention was developed to solve the above problem.The glass tube is formed in such a way that the atmosphere inside the Matsufuru furnace, especially the temperature of the sleeve tip, heat cover, and catenary near the side wall of the annealer, can be adjusted. The purpose is to provide equipment.
（問題点を解決するための手段）
ガラス管の成形装置においてスリーブ先端部の
マツフル炉側壁とヒートカバー側壁とアニーラー
側壁とに複数個の水冷ジヤケツトを設けたことに
ある。
(Means for Solving the Problems) In a glass tube forming apparatus, a plurality of water cooling jackets are provided on the side wall of the Matsufuru furnace, the side wall of the heat cover, and the side wall of the annealer at the tip of the sleeve.
（作用）
フオアハースのトラフから流出する溶融ガラス
の量を増大させるとマツフル炉内およびヒートカ
バー部並びにアニーラー部の雰囲気温度が上昇し
カテナリーが下降状態となる。この場合、複数個
の水冷ジヤケツトの一部に給水していたものを、
水冷ジヤケツトのすべてに給水して吸熱面積を拡
大することにより、前記３部分の雰囲気温度を下
げることとなり、結果的にはカテナリーの下降を
防止して、その高さを最良の位置に保持すること
ができる。また、反対にトラフから流出する溶融
ガラスの量を減少させた場合は逆の操作、すなわ
ち、一部の水冷ジヤケツトに限定して給水し吸熱
面積を縮小すればよい。(Function) When the amount of molten glass flowing out from the trough of the floor hearth is increased, the atmospheric temperature in the Matsufuru furnace, the heat cover section, and the annealer section rises, causing the catenary to descend. In this case, the one that was supplying water to some of the multiple water cooling jackets,
By supplying water to all of the water cooling jackets and expanding the heat absorption area, the atmospheric temperature in the three parts mentioned above can be lowered, and as a result, the catenary can be prevented from lowering and its height can be maintained at the best position. I can do it. On the other hand, if the amount of molten glass flowing out from the trough is to be reduced, the operation can be reversed, that is, by supplying water only to some of the water cooling jackets to reduce the heat absorption area.
（実施例）
以下、本考案の詳細を第１図と第２図を参照し
て説明する。(Example) Hereinafter, details of the present invention will be explained with reference to FIGS. 1 and 2.
マツフル炉１の上部にあるトラフ２から溶融ガ
ラス３がリボン状に流出し、所定の速度で回転し
ているマンドレルスリーブ４（以下スリーブとい
う）に巻き取れる。このスリーブ４は、先端を下
向きに傾斜させてマツフル炉１内に配設されてい
る。５は中空のブローパイプで、スリーブ４の先
端から流出垂下して成形される溶融ガラス３に空
気を吹き込み、所定のカテナリー６高さを与えて
ガラス管に形成する。７はマツフル炉１出口上方
に吊持され、マツフル炉１内の雰囲気温度調整機
能を有するマツフルダンパーである。８は水冷ジ
ヤケツトでスリーブ４の先端近傍のマツフル炉１
内壁と、ヒートカバー９とアニーラー１０内壁の
カテナリー６近傍部分に数個ずつ設けられてい
る。第２図で、１１は水の供給パイプで、１２は
排出パイプである。 Molten glass 3 flows out in the form of a ribbon from a trough 2 at the top of the Matsufuru furnace 1 and is wound onto a mandrel sleeve 4 (hereinafter referred to as sleeve) which is rotating at a predetermined speed. This sleeve 4 is disposed in the Matsufuru furnace 1 with its tip inclined downward. A hollow blow pipe 5 blows air into the molten glass 3 that flows out from the tip of the sleeve 4 and is formed, giving a predetermined catenary 6 height and forming it into a glass tube. Reference numeral 7 denotes a Matsufuru damper which is suspended above the outlet of the Matsufuru furnace 1 and has a function of adjusting the atmospheric temperature within the Matsufuru furnace 1 . 8 is a water-cooled jacket that connects the Matsufuru furnace 1 near the tip of the sleeve 4.
Several pieces are provided on the inner wall and on the inner wall of the heat cover 9 and annealer 10 near the catenary 6. In FIG. 2, 11 is a water supply pipe, and 12 is a discharge pipe.
したがつて、トラフ２から流出される溶融ガラ
ス３の量を増大させた場合、マツフル炉１内と、
ヒートカバー９内とアニーラー１０内との雰囲気
温度調整がマツフルダンパー７のみによつて十分
行なわれず外乱が生じてカテナリー６の温度の安
定が得られないとき、複数個の水冷ジヤケツト８
のすべてに給水し、吸熱面積を増やす。これによ
各部の雰囲気温度及びカテナリー６温度が低下す
るので、溶融ガラス３の流出増に伴なう保有熱に
よつてカテナリー６が下るのを防止でき、最適の
位置に保持することができる。また溶融ガラス３
の流出量を減少させた場合は、給水する水冷ジヤ
ケツト８の数を減らせばよい。 Therefore, when the amount of molten glass 3 flowing out from the trough 2 is increased, the inside of the Matsufuru furnace 1 and
When the temperature of the atmosphere inside the heat cover 9 and the inside of the annealer 10 is not sufficiently adjusted only by the pine full damper 7 and disturbances occur and the temperature of the catenary 6 cannot be stabilized, a plurality of water cooling jackets 8
Supply water to all of the areas and increase the heat absorption area. As a result, the ambient temperature of each part and the temperature of the catenary 6 are lowered, so that the catenary 6 can be prevented from lowering due to retained heat due to an increase in the outflow of molten glass 3, and can be held at an optimal position. Also molten glass 3
In order to reduce the amount of water flowing out, the number of water cooling jackets 8 to be supplied with water can be reduced.
なお、マツフルダンパー７はカテナリー高さの
微調整用として水冷ジヤケツト８とともに使用し
てもよい。また流出量をさらに増大させるように
水冷ジヤケツト８の個数、寸法形状ならびに水温
管理に適宜変更を施こしてもよい。 Incidentally, the pine full damper 7 may be used together with the water cooling jacket 8 for fine adjustment of the catenary height. Further, the number, size and shape of the water cooling jackets 8, and water temperature management may be appropriately changed so as to further increase the outflow amount.
また、水冷ジヤケツト８は耐熱材料製で、各部
分の外側から内壁に装着し、外部の配管をつなぎ
替えることにより吸熱面積が変えられ、かつ水量
調整で吸熱量の微調整ができる。 Further, the water cooling jacket 8 is made of a heat-resistant material and is attached to the inner wall from the outside of each part, and the heat absorption area can be changed by changing the external piping, and the amount of heat absorption can be finely adjusted by adjusting the amount of water.
以上のように本考案は、マツフル炉内に配設さ
れたマンドレルスリーブに溶融ガラスを供給して
管引き成形するガラス管の成形装置において、ス
リーブの先端部近傍のマツフル炉両壁とヒートカ
バー、アニーラーの側壁のカテナリー近傍とに水
冷ジヤケツトを設けたので、下記の利点を有して
いる。
As described above, the present invention provides a glass tube forming apparatus that supplies molten glass to a mandrel sleeve disposed in a Matsufuru furnace and forms the tube by drawing the glass tube. Since a water cooling jacket is provided on the side wall of the annealer near the catenary, it has the following advantages.
(1) スリーブ寸法を変更することなく溶融ガラス
の流出量を増量させることができる。(1) The amount of molten glass flowing out can be increased without changing the sleeve dimensions.
(2) マツフルダンパーを使用した場合と比較して
冷気流による外乱が防止され炉内雰囲気温度の
変動が少なく安定しているので、カテナリーも
安定し外観不良・寸法不良が著しく減少する。(2) Compared to the case where a Matsufuru damper is used, disturbances caused by cold air flow are prevented and the atmospheric temperature inside the furnace is less fluctuated and stable, so the catenary is also stable and appearance defects and dimensional defects are significantly reduced.
図面は本考案の一実施例を示し、第１図はマツ
フル炉、ヒートカバー、アニーラー部分の断面
図、第２図は水冷ジヤケツトの断面図である。
１……マツフル炉、２……トラフ、４……スリ
ーブ、７……マツフルダンパー、８……水冷ジヤ
ケツト、９……ヒートカバー、１０……アニーラ
ー。
The drawings show an embodiment of the present invention; FIG. 1 is a cross-sectional view of the muffle furnace, heat cover, and annealer portion, and FIG. 2 is a cross-sectional view of the water-cooled jacket. 1 ...Matsuful furnace, 2...Trough, 4...Sleeve, 7...Matsuful damper, 8...Water cooling jacket, 9...Heat cover, 10...Annealer.
Claims (1)
ニーラーとを備え、マツフル炉内に先端を下向き
に傾斜させて配設したスリーブ上に供給される溶
融ガラスをスリーブ先端から垂下させ管引きして
成形するガラス管の成形装置において、上記スリ
ーブ先端近傍のマツフル炉側壁とヒートカバー側
壁とアニーラー側壁とに複数個の水冷ジヤケツト
を設けたことを特徴とするガラス管の成形装置。 Glass is formed by forming a tube by hanging the molten glass from the tip of the sleeve, which is equipped with a Matsufuru furnace, a heat cover and an annealer connected to the furnace, and is placed on a sleeve with the tip slanted downward in the Matsufuru furnace. A glass tube forming apparatus characterized in that a plurality of water cooling jackets are provided on the side wall of the muffle furnace, the side wall of the heat cover, and the side wall of the annealer near the tip of the sleeve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1528488U JPH0417541Y2 (en) | 1988-02-08 | 1988-02-08 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1528488U JPH0417541Y2 (en) | 1988-02-08 | 1988-02-08 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH01119026U JPH01119026U (en) | 1989-08-11 |
| JPH0417541Y2 true JPH0417541Y2 (en) | 1992-04-20 |
Family
ID=31227200
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1528488U Expired JPH0417541Y2 (en) | 1988-02-08 | 1988-02-08 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0417541Y2 (en) |
-
1988
- 1988-02-08 JP JP1528488U patent/JPH0417541Y2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPH01119026U (en) | 1989-08-11 |
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