DE4009484A1 - Horizontal optical fibre drawing appts. - with drawing tube or rod welded to preform - Google Patents
Horizontal optical fibre drawing appts. - with drawing tube or rod welded to preformInfo
- Publication number
- DE4009484A1 DE4009484A1 DE19904009484 DE4009484A DE4009484A1 DE 4009484 A1 DE4009484 A1 DE 4009484A1 DE 19904009484 DE19904009484 DE 19904009484 DE 4009484 A DE4009484 A DE 4009484A DE 4009484 A1 DE4009484 A1 DE 4009484A1
- Authority
- DE
- Germany
- Prior art keywords
- preform
- tube
- auxiliary
- appts
- optical fibre
- 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.)
- Withdrawn
Links
- 239000013307 optical fiber Substances 0.000 title claims description 5
- 238000010438 heat treatment Methods 0.000 claims description 2
- 230000003287 optical effect Effects 0.000 abstract 1
- 238000004519 manufacturing process Methods 0.000 description 3
- 239000000835 fiber Substances 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 241000234282 Allium Species 0.000 description 1
- 235000002732 Allium cepa var. cepa Nutrition 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B37/00—Manufacture or treatment of flakes, fibres, or filaments from softened glass, minerals, or slags
- C03B37/01—Manufacture of glass fibres or filaments
- C03B37/02—Manufacture of glass fibres or filaments by drawing or extruding, e.g. direct drawing of molten glass from nozzles; Cooling fins therefor
- C03B37/025—Manufacture of glass fibres or filaments by drawing or extruding, e.g. direct drawing of molten glass from nozzles; Cooling fins therefor from reheated softened tubes, rods, fibres or filaments, e.g. drawing fibres from preforms
- C03B37/027—Fibres composed of different sorts of glass, e.g. glass optical fibres
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B37/00—Manufacture or treatment of flakes, fibres, or filaments from softened glass, minerals, or slags
- C03B37/01—Manufacture of glass fibres or filaments
- C03B37/02—Manufacture of glass fibres or filaments by drawing or extruding, e.g. direct drawing of molten glass from nozzles; Cooling fins therefor
- C03B37/025—Manufacture of glass fibres or filaments by drawing or extruding, e.g. direct drawing of molten glass from nozzles; Cooling fins therefor from reheated softened tubes, rods, fibres or filaments, e.g. drawing fibres from preforms
- C03B37/027—Fibres composed of different sorts of glass, e.g. glass optical fibres
- C03B37/02736—Means for supporting, rotating or feeding the tubes, rods, fibres or filaments to be drawn, e.g. fibre draw towers, preform alignment, butt-joining preforms or dummy parts during feeding
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B37/00—Manufacture or treatment of flakes, fibres, or filaments from softened glass, minerals, or slags
- C03B37/01—Manufacture of glass fibres or filaments
- C03B37/02—Manufacture of glass fibres or filaments by drawing or extruding, e.g. direct drawing of molten glass from nozzles; Cooling fins therefor
- C03B37/025—Manufacture of glass fibres or filaments by drawing or extruding, e.g. direct drawing of molten glass from nozzles; Cooling fins therefor from reheated softened tubes, rods, fibres or filaments, e.g. drawing fibres from preforms
- C03B37/029—Furnaces therefor
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B2205/00—Fibre drawing or extruding details
- C03B2205/04—Non-vertical drawing
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B2205/00—Fibre drawing or extruding details
- C03B2205/60—Optical fibre draw furnaces
- C03B2205/62—Heating means for drawing
- C03B2205/64—Induction furnaces, i.e. HF/RF coil, e.g. of the graphite or zirconia susceptor type
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Re-Forming, After-Treatment, Cutting And Transporting Of Glass Products (AREA)
Abstract
Description
Die Erfindung bezieht sich auf eine Vorrichtung zum Ziehen von optischen Fasern aus einer warmen Vorform, die in einer Halterung gelagert und von einer Heizeinrichtung umgeben ist.The invention relates to a device for pulling optical fibers from a warm preform, which in a Mounted bracket and is surrounded by a heater.
Beim Ziehen von optischen Fasern wird von einer warmen Vorform ausgegangen, aus der sich unter dem Einfluß der Gravitation ein Tropfen löst, der eine sogenannte Ziehzwiebel ausbildet, die zu dem erwünschten Faden ausgezogen wird. Dieser Umstand bedingt, daß alle bekannten Ziehvorrichtungen für optische Fasern mit einer senkrecht ausgebildeten Ziehanordnung arbeiten, die in Form eines Ziehturmes beachtliche Bauhöhen erfordert (Buch.: Lichtwellenleiterkabel S. 95+96, Mahlke/Gössing, 2. Aufl. 1988, Siemens AG).When pulling optical fibers, a warm preform is used assumed that under the influence of gravity Solves drops, which forms a so-called onion, the is pulled out to the desired thread. This fact means that all known pullers for optical fibers with a vertically trained drawing arrangement work in The shape of a drawing tower requires considerable heights (book: Fiber optic cable p. 95 + 96, Mahlke / Gössing, 2nd ed. 1988, Siemens AG).
Der Erfindung liegt die Aufgabe zugrunde, den Ziehvorgang ohne die Notwendigkeit hoher Ziehtürme abwickeln zu können. Zur Lösung dieser Aufgabe wird gemäß der Erfindung vorgeschlagen, daß der horizontal angeordneten Vorrichtung zum Ziehen in Abzugsrichtung ein Hilfsrohr/Hilfsstab zugeordnet ist, das/der an der Vorform anschweißbar ausgebildet ist.The invention has for its object the drawing process without to be able to handle the need for high towers. To This object is proposed according to the invention, that the horizontally arranged device for pulling in Withdrawal direction is associated with an auxiliary tube / auxiliary rod is weldable to the preform.
Auf diese Weise kann die schwierige Phase des Anfahrens durch das Hilfsrohr/Hilfsstab eingeleitet werden, indem das Rohr bzw. der Stab nach dem Anschweißen mit der Vorform unter synchronem Drehen langsam von dieser abgezogen wird.This way, the difficult start-up phase can be overcome the auxiliary tube / auxiliary rod are introduced by the tube or the rod after welding with the preform under synchronous Rotating slowly pulling it off.
Eine vorteilhafte Ausgestaltung der Erfindung besteht darin, daß das Hilfsrohr mit einer Absaugeinrichtung beaufschlagt ist, die in der Lage ist, in dem Hilfsrohr einen Unterdruck zu schaffen.An advantageous embodiment of the invention consists in that the auxiliary pipe is acted upon by a suction device, which is able to create a negative pressure in the auxiliary pipe create.
Eine weitere Ausgestaltung der Erfindung besteht darin, daß das Hilfsrohr/der Hilfsstab aus der Abzugslinie ausschwenkbar ausgebildet ist, so daß man ungestört durch das Hilfsrohr bzw. den Hilfsstab zur eigentlichen Fertigungsphase übergehen kann, wenn der abgezogene Glasfaden die gewünschten Dimensionen ange nommen hat und bei geeigneter Temperatur mit Coating versehen wird.Another embodiment of the invention is that Auxiliary tube / the auxiliary rod can be swung out of the withdrawal line is designed so that you can undisturbed by the auxiliary tube or the auxiliary staff can go to the actual manufacturing phase, when the stripped glass thread indicates the desired dimensions has taken and coated at a suitable temperature becomes.
Eine bevorzugte Ausführungsform der Erfindung besteht darin, daß die Achse der Vorform gegenüber der Horizontalen ein wenig geneigt angeordnet ist, wobei der Neigungswinkel der Größe des Anfangswinkels der Kettenlinie entspricht. Da jede horizontal gespannte Seite o. dergl. aufgrund der Schwerkraft etwas durch hängt und die bekannte Kettenlinie bildet, kann man durch diese Neigung der Achse einem Abknicken der Faser vorbeugen.A preferred embodiment of the invention consists in that the axis of the preform is a little bit horizontal is arranged inclined, the angle of inclination of the size of the Starting angle of the chain line corresponds. Because each is horizontal tense side or the like due to gravity hangs and forms the well-known chain line, you can through this Prevent the axis from tilting to prevent the fiber from kinking.
Die Erfindung wird anhand des in der Zeichnung dargestellten und nachfolgend beschriebenen Ausführungsbeispiels im einzelnen erläutert: In der Zeichnung zeigtThe invention is illustrated by the in the drawing and the exemplary embodiment described below in detail explains: In the drawing shows
Fig. 1 eine Seitenansicht (teilweise geschnitten) der horizontal eingerichteten Vorrichtung zum Ziehen und Fig. 1 is a side view (partially cut) of the horizontally arranged device for pulling and
Fig. 2 in vergrößerter Darstellung die Vorform und das anzuschweißende Hilfsrohr. Fig. 2 in an enlarged view the preform and the auxiliary pipe to be welded.
Die in Fig. 1 in Seitenansicht dargestellte Vorrichtung 10 zum Ziehen besteht im wesentlichen aus einer tischartigen Stütze 15, einer Halterung 14 und einer Einrichtung 13 zum Drehen der darin eingespannten Vorform 12, die in einer Heizeinrichtung 11 hineinragt. Die Halterung 14 ist gegenüber der Horizontalen derart geneigt angeordnet, daß ihr Neigungswinkel der Größe des Anfangswinkels der Kettenlinie entspricht, die der abzuziehende Faden 21 bildet.The drawing device 10 shown in side view in FIG. 1 essentially consists of a table-like support 15 , a holder 14 and a device 13 for rotating the preform 12 clamped therein, which protrudes into a heating device 11 . The holder 14 is arranged inclined with respect to the horizontal such that its angle of inclination corresponds to the size of the starting angle of the chain line which the thread 21 to be drawn off forms.
Gegenüber dieser Vorrichtung ist auf einer ebenfalls tisch artigen Stütze 25 ein Hilfsrohr 22 in einer Einrichtung 23 zum Drehen des Hilfsrohres eingespannt. Die tischartige Stütze ist dabei verfahrbar ausgebildet, so daß das Hilfsrohr 22 nach dem Anschweißen von der Vorform 12 abgezogen werden kann. Das Hilfs rohr 22 ist um einen Drehpunkt 20 schwenkbar gelagert, so daß es nach Erreichen der gewünschten Dimensionen des Fadens 21 aus der Fertigungslinie herausgeklappt werden kann.Compared to this device, an auxiliary tube 22 is clamped in a device 23 for rotating the auxiliary tube on a table-like support 25 . The table-like support is designed to be movable so that the auxiliary tube 22 can be removed from the preform 12 after welding. The auxiliary tube 22 is pivotally mounted about a pivot point 20 so that it can be folded out of the production line after reaching the desired dimensions of the thread 21 .
Fig. 2 zeigt schematisch die Vorform 12, die durch ihren Her stellungsvorgang bedingt, eine Spitze 12a aufweist, in deren Bereich das Hilfsrohr 22 angeschweißt wird. Fig. 2 shows schematically the preform 12 , which is due to its manufacturing process, has a tip 12 a, in the area of which the auxiliary tube 22 is welded.
Claims (4)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19904009484 DE4009484A1 (en) | 1990-03-22 | 1990-03-22 | Horizontal optical fibre drawing appts. - with drawing tube or rod welded to preform |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19904009484 DE4009484A1 (en) | 1990-03-22 | 1990-03-22 | Horizontal optical fibre drawing appts. - with drawing tube or rod welded to preform |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE4009484A1 true DE4009484A1 (en) | 1991-09-26 |
Family
ID=6402970
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE19904009484 Withdrawn DE4009484A1 (en) | 1990-03-22 | 1990-03-22 | Horizontal optical fibre drawing appts. - with drawing tube or rod welded to preform |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE4009484A1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6848276B2 (en) * | 1998-11-05 | 2005-02-01 | Shin-Etsu Chemical Co., Ltd. | Optical fiber manufacture method, preform manufacture method, and preform manufacture apparatus |
| US7290408B1 (en) * | 1994-11-08 | 2007-11-06 | Draka Comteq B.V. | Apparatus for supporting a preform having a supporting core |
-
1990
- 1990-03-22 DE DE19904009484 patent/DE4009484A1/en not_active Withdrawn
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7290408B1 (en) * | 1994-11-08 | 2007-11-06 | Draka Comteq B.V. | Apparatus for supporting a preform having a supporting core |
| US6848276B2 (en) * | 1998-11-05 | 2005-02-01 | Shin-Etsu Chemical Co., Ltd. | Optical fiber manufacture method, preform manufacture method, and preform manufacture apparatus |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| DE1168023C2 (en) | METHOD AND DEVICE FOR MANUFACTURING LIGHT-GUIDING FIBERS OR FABRICS FROM GLASS OR ANY OTHER LIGHT-GUIDING THERMOPLASTIC MATERIAL | |
| DE726122C (en) | Method and device for producing threads from inorganic masses that are plastic in the heat, in particular glass | |
| DE112018007645T5 (en) | Rod hanger and system for pulling glass fibers | |
| DE2735186C3 (en) | Apparatus for drawing glass fibers | |
| DE69800722T2 (en) | Procedure for drawing a glass preform into a rod | |
| DE10344205B4 (en) | Apparatus and method for producing glass fibers | |
| DE4009484A1 (en) | Horizontal optical fibre drawing appts. - with drawing tube or rod welded to preform | |
| DE69018945T2 (en) | Process for heating a vitreous body. | |
| DE68911511T2 (en) | Device for drawing micropipettes of controlled shape by moving the point of heat. | |
| DE7515187U (en) | REEL REMOVAL DEVICE FOR SPINNING MACHINES | |
| DE1735022B2 (en) | Pneumatic cleaning device for looms | |
| DE3744369A1 (en) | METHOD AND DEVICE FOR VERTICAL DRAWING OF GLASS TUBES WITH CLOSED BOTTOMS | |
| DE2747306C2 (en) | Process for separating glass fibers | |
| DE526900C (en) | Method of spinning threads from glass | |
| DE2834753C3 (en) | Device for starting a nipple-free nozzle for drawing glass fibers | |
| EP0850329B1 (en) | Mechanical loom | |
| DE3436668C2 (en) | ||
| DE549393C (en) | Moving cleaning device for the drafting system or delivery system of spinning or twisting machines | |
| DE69208568T2 (en) | Process for the production of an optical fiber | |
| DE256658C (en) | ||
| DE2239341A1 (en) | DEVICE FOR MAKING A CAKE FROM COILED RODS OF FIBER OR FIBER | |
| DE742008C (en) | Process for the manufacture of glass bodies with a diameter that changes in sections | |
| DE69310081T2 (en) | Device for producing thermoplastic fiber windings | |
| DE4009485A1 (en) | Swivelling optical fibre drawing appts. - allowing vertical start=up and horizontal drawing phases | |
| DE744973C (en) | Device for producing glass threads from glass rods |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 8139 | Disposal/non-payment of the annual fee |