JPS63289744A - Manufacture of circular fluorescent lamp - Google Patents
Manufacture of circular fluorescent lampInfo
- Publication number
- JPS63289744A JPS63289744A JP12123187A JP12123187A JPS63289744A JP S63289744 A JPS63289744 A JP S63289744A JP 12123187 A JP12123187 A JP 12123187A JP 12123187 A JP12123187 A JP 12123187A JP S63289744 A JPS63289744 A JP S63289744A
- Authority
- JP
- Japan
- Prior art keywords
- drum
- bulb
- glass bulb
- fluorescent lamp
- flat
- 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.)
- Pending
Links
- 238000004519 manufacturing process Methods 0.000 title claims description 13
- 239000011521 glass Substances 0.000 claims abstract description 33
- 238000000465 moulding Methods 0.000 claims abstract description 8
- 238000004804 winding Methods 0.000 claims abstract description 8
- 238000010438 heat treatment Methods 0.000 claims description 3
- 238000003825 pressing Methods 0.000 claims 1
- 238000007596 consolidation process Methods 0.000 abstract 1
- 238000000034 method Methods 0.000 description 5
- 241000207199 Citrus Species 0.000 description 1
- 235000020971 citrus fruits Nutrition 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000001175 rotational moulding Methods 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
Landscapes
- Manufacture Of Electron Tubes, Discharge Lamp Vessels, Lead-In Wires, And The Like (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は、環形蛍光ランプの製造方法に係り、特に偏平
断面形（楕円断面形）の環形蛍光ランプの製造方法に関
する。DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to a method for manufacturing an annular fluorescent lamp, and particularly to a method for manufacturing an annular fluorescent lamp having a flat cross section (elliptical cross section).
環形蛍光ランプの製造、特に直管形ガラスバルブを環形
に製造する工程は、特開昭５６−１４９７４４号公報に
記載されている如く下記の方法で行なわれていた。The manufacturing of annular fluorescent lamps, particularly the process of manufacturing straight glass bulbs into annular shapes, has been carried out by the following method as described in Japanese Patent Application Laid-Open No. 149744/1983.
（１）両端部に電極全支持するステムを封着した直管形
ガラスバルブを加熱炉内で環形に成形可能な温度まで加
熱し、このガラスバルブを環形成形装置まで搬送し２つ
に分割された環形成形用巻き取シトラムが閉じることに
↓９上記ドラムに取り付けた巻き取りチャックによって
ガラスバルブの下端を保持する。(1) A straight glass bulb with a stem that fully supports the electrodes sealed at both ends is heated in a heating furnace to a temperature at which it can be formed into a ring shape, and the glass bulb is transported to a ring forming device where it is divided into two parts. When the winding citrus for ring forming is closed, the lower end of the glass bulb is held by the winding chuck attached to the drum.
（２）上記ドラムを自転させ直管形ガラスバルブを巻き
付けドラムの円周上に巻き付けながら、ガラスバルブを
環形に成形する。(2) The drum is rotated and the straight glass bulb is wound around the circumference of the drum to form the glass bulb into an annular shape.
（３） ガラスバルブを巻き付けドラムに巻き付けた
ｉま、空冷固化する。ガラスバルブが固化した後１巻き
付けドラムを開き環形成形パルプを取り出す。(3) Wrap the glass bulb around the drum and solidify by air cooling. After the glass bulb has solidified, the one-wrap drum is opened and the ring-formed pulp is taken out.
上記従来技術はガラス管断面を円形のまま成形していた
ものである。本発明の目的は環形蛍光ランプの断面形状
を偏平形（楕円形）に成形し得る環形蛍光ランプの製造
方法を提供することにある。In the above-mentioned prior art, the glass tube is formed with a circular cross section. SUMMARY OF THE INVENTION An object of the present invention is to provide a method for manufacturing an annular fluorescent lamp, which allows the cross-sectional shape of the annular fluorescent lamp to be formed into a flat (elliptical) shape.
上記目的を達成するため本発明においては環形蛍光ラン
グ製造において、直管形ガラスバルブを環形に成形する
巻き付けドラムの断面形状を従来の半円形から半楕円形
（偏平形）にすると共に。In order to achieve the above object, in the present invention, in the production of annular fluorescent lamps, the cross-sectional shape of the winding drum for forming straight glass bulbs into an annular shape is changed from the conventional semicircular shape to a semielliptical (oblate shape).
直管形ガラスバルブｔｉ形に成形する時は、左右一対の
巻き付けドラムを密着させ、ガラスバルブをドラムには
さみ、このガラスバルブの背面にこのドラムと連接した
ローラ全当てた状態にて巻き取シ成形することにより、
ガラスバルブがドラム溝から外側へはずれる事なく偏平
形の環形蛍光ランプを成形するようにしたものである。When forming a straight glass bulb into a TI shape, a pair of left and right winding drums are placed in close contact with each other, the glass bulb is sandwiched between the drums, and the winding system is placed with all of the rollers connected to the drums in contact with the back of the glass bulb. By molding,
A flat annular fluorescent lamp is molded without the glass bulb coming off outward from the drum groove.
ここで。here.
本製造方法を採用して、ドラム断面を半円形として成形
すると従来の円形断面のガラスバルブからなる環形蛍光
ランプの外形状も真円度の高い形状で成形出来ることも
判明した。It has also been found that by employing this manufacturing method and forming a drum with a semicircular cross section, it is possible to form a highly circular external shape of a conventional annular fluorescent lamp made of a glass bulb with a circular cross section.
本発明によれば１巻き付けドラムに連接したローラがガ
ラスバルブを偏平形ドラム溝内に押し入れ成形する効果
を有しているので、正確な形状の偏平断面環形蛍光ラン
プを成形出来る。According to the present invention, since the roller connected to the one-wrap drum has the effect of forcing the glass bulb into the groove of the flat drum, it is possible to mold a flat cross-section annular fluorescent lamp with an accurate shape.
以下１本発明製造方法の一実施例を、環形蛍光ランプ成
形装置を用いて説明する。An embodiment of the manufacturing method of the present invention will be described below using an annular fluorescent lamp molding apparatus.
第１図は本発明製造方法を実施するための環形蛍光ラン
プ成形装置の一例で、ガラスバルブを成形する装置の一
部を示す側面図である。FIG. 1 is an example of an annular fluorescent lamp molding apparatus for implementing the manufacturing method of the present invention, and is a side view showing a part of the apparatus for molding a glass bulb.
第１図（ａ）は図示しない加熱炉よりガラス軟化点付近
まで加熱した直後の直管形ガラスバルブ２を管チャツク
３にて保持したままパルプ下端をドラム５に連結したチ
ャック４にて保持し、このドラム５が図示矢印方向に回
転上昇する前の側面図を、（ｂ）は回転成形中の側面図
を、（Ｃ）は成形固化後の側面図をそれぞれ示す。In FIG. 1(a), the lower end of the pulp is held by a chuck 4 connected to a drum 5 while a straight glass bulb 2 is held by a tube chuck 3 immediately after being heated to near the glass softening point in a heating furnace (not shown). , (b) shows a side view of the drum 5 before it rotates upward in the direction of the arrow shown in the figure, (b) shows a side view during rotational molding, and (c) shows a side view after molding and solidification.
本実施例によれば直管形ガラスバルブ２をドラム５に内
接成形するためにドラム軸受１２に一体化した固定ロー
ラ１０をガラスバルブ２の背面に押し当て成形する。According to this embodiment, in order to internally mold the straight glass bulb 2 into the drum 5, a fixed roller 10 integrated with a drum bearing 12 is pressed against the back surface of the glass bulb 2.
すなわち、第２図（ａ）に示す様にガラスバルブ２をド
ラム５の楕円形の溝にローラ１ｏで押し込みその後第２
図（ｂ）に示す様にガラスバルブ２の中にＮｚｋ送気し
偏平形に成形出来る。That is, as shown in FIG. 2(a), the glass bulb 2 is pushed into the oval groove of the drum 5 with the roller 1o, and then the second
As shown in Figure (b), Nzk air is blown into the glass bulb 2 to form it into a flat shape.
第３図は偏平形に成形した環形蛍光ランプの一部を切欠
いて断面を示した外観図である。FIG. 3 is an external view showing a cross section of a flat annular fluorescent lamp with a portion cut away.
上述の如く１本発明によれば、ドラムの成形溝内にガラ
スバルブを完全に押し込むことができるため、成形性の
高い、均一な形状を有する偏平形壌形蛍光ランプを製造
することができる。As described above, according to the present invention, it is possible to completely push the glass bulb into the molding groove of the drum, so that it is possible to manufacture a flat, round-shaped fluorescent lamp with high moldability and a uniform shape.
第１図は本発明製造方法を実施するための環形蛍光ラン
グ成形装置の要部の側面図、第２図（ａ）は第１図（ａ
）のＡ−Ａ矢視図、（ｂ）は第１図（ｂ）のＢ−Ｂ矢視
図を示す。第３図は偏平断面形環形蛍光ランプの一部切
欠き断面を示す外観図である。
２・・・ガラスバルブ、３・・・管チャツク、４・・・
ドラムチャック、５・・・巻き取９ドラム、１２・・・
ドラム本体軸受、１０・・・背面ローラ、８・・・背面
ローラーレバー。
＼ Ｉ
Ｘ−７FIG. 1 is a side view of the main parts of an annular fluorescent lamp forming apparatus for carrying out the manufacturing method of the present invention, and FIG.
), and (b) shows a view taken along B-B in FIG. 1(b). FIG. 3 is an external view showing a partially cutaway cross-section of a flat-section annular fluorescent lamp. 2...Glass bulb, 3...Pipe chuck, 4...
Drum chuck, 5... Take-up 9 drum, 12...
Drum body bearing, 10... Back roller, 8... Back roller lever. ＼ IX-7
Claims (1)
ムが封着され、その上端部を保持された直管形ガラスバ
ルブを加熱する工程と、上記工程に続いて、上記直管形
ガラスバルブの下端部を保持して巻き付けドラムの円周
に沿つて移動させて直管形ガラスバルブを巻き付けドラ
ムに巻き付けて、環形に成形する時にガラス背面に取り
付けた背当てローラにてガラスバルブを偏平形状の巻き
付けドラム溝に押し入れ成形する事を特徴とする環形蛍
光ランプの製造方法。1. A step of heating the straight glass bulb, in which a stem supporting an electrode is sealed to both ends of the straight glass bulb and the upper end thereof is held, and following the above step, Hold the lower end of the bulb and move it along the circumference of the winding drum to wrap the straight glass bulb around the winding drum, and when forming it into an annular shape, flatten the glass bulb with a backing roller attached to the back of the glass. A method of manufacturing an annular fluorescent lamp characterized by pressing and molding it into a shaped drum groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12123187A JPS63289744A (en) | 1987-05-20 | 1987-05-20 | Manufacture of circular fluorescent lamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12123187A JPS63289744A (en) | 1987-05-20 | 1987-05-20 | Manufacture of circular fluorescent lamp |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS63289744A true JPS63289744A (en) | 1988-11-28 |
Family
ID=14806150
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12123187A Pending JPS63289744A (en) | 1987-05-20 | 1987-05-20 | Manufacture of circular fluorescent lamp |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63289744A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1995015003A1 (en) * | 1993-11-29 | 1995-06-01 | Nippon Lighting Electric Co. Ltd. | Bulb-form fluorescent lamp and method for its manufacture |
-
1987
- 1987-05-20 JP JP12123187A patent/JPS63289744A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1995015003A1 (en) * | 1993-11-29 | 1995-06-01 | Nippon Lighting Electric Co. Ltd. | Bulb-form fluorescent lamp and method for its manufacture |
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