CN203999369U - The manufacturing installation of glass optical fiber - Google Patents
The manufacturing installation of glass optical fiber Download PDFInfo
- Publication number
- CN203999369U CN203999369U CN201420287264.5U CN201420287264U CN203999369U CN 203999369 U CN203999369 U CN 203999369U CN 201420287264 U CN201420287264 U CN 201420287264U CN 203999369 U CN203999369 U CN 203999369U
- Authority
- CN
- China
- Prior art keywords
- optical fiber
- glass optical
- cooling tube
- wire
- cooling
- 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 - Lifetime
Links
- 239000013307 optical fiber Substances 0.000 title claims abstract description 109
- 239000011521 glass Substances 0.000 title claims abstract description 105
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 26
- 238000009434 installation Methods 0.000 title claims abstract description 20
- 238000001816 cooling Methods 0.000 claims abstract description 129
- 238000005491 wire drawing Methods 0.000 claims abstract description 43
- 239000000112 cooling gas Substances 0.000 claims abstract description 30
- 238000003780 insertion Methods 0.000 claims abstract description 25
- 230000037431 insertion Effects 0.000 claims abstract description 25
- 239000006121 base glass Substances 0.000 claims abstract description 23
- 239000000463 material Substances 0.000 claims abstract description 23
- 238000000034 method Methods 0.000 claims abstract description 12
- 238000010438 heat treatment Methods 0.000 description 8
- 239000011347 resin Substances 0.000 description 7
- 229920005989 resin Polymers 0.000 description 7
- 239000001307 helium Substances 0.000 description 5
- 229910052734 helium Inorganic materials 0.000 description 5
- SWQJXJOGLNCZEY-UHFFFAOYSA-N helium atom Chemical compound [He] SWQJXJOGLNCZEY-UHFFFAOYSA-N 0.000 description 5
- 238000013459 approach Methods 0.000 description 4
- 239000000835 fiber Substances 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 230000003467 diminishing effect Effects 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 238000009281 ultraviolet germicidal irradiation Methods 0.000 description 2
- 238000011144 upstream manufacturing Methods 0.000 description 2
- 208000034189 Sclerosis Diseases 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 239000011247 coating layer Substances 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 238000010926 purge Methods 0.000 description 1
- 238000012216 screening Methods 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
- C03B37/02718—Thermal treatment of the fibre during the drawing process, e.g. cooling
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B2205/00—Fibre drawing or extruding details
- C03B2205/55—Cooling or annealing the drawn fibre prior to coating using a series of coolers or heaters
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Physics & Mathematics (AREA)
- Thermal 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)
- Manufacture, Treatment Of Glass Fibers (AREA)
- Surface Treatment Of Glass Fibres Or Filaments (AREA)
Abstract
The utility model provides a kind of manufacturing installation of glass optical fiber, and the problem that it can break preventing glass optical fiber from contacting with refrigerating unit is carried out cooled glass optical fiber with good cooling efficiency when occurring.The manufacturing installation of glass optical fiber (1) has: process furnace (2), and it heats base glass material, makes base glass material softening; and refrigerating unit (7), its glass optical fiber (G1) that base glass material (G) wire drawing from softening by process furnace (2) is obtained carries out cooling, refrigerating unit (7) has tubular cooling tube (21), cooling tube (21) has the insertion path (22) that the glass optical fiber (G1) that makes to advance to wire-drawing direction (A) passes through in inside, and in inserting path (22), supply with cooling gas, in cooling tube (21), insert the internal surface of path (22) and the distance that is orthogonal to wire-drawing direction (A) between glass optical fiber (G1), more less to the downstream side of wire-drawing direction (A).
Description
Technical field
The utility model relates to base glass material is carried out wire drawing and manufactures the manufacturing installation of glass optical fiber.
Background technology
For optical fiber, on the known glass optical fiber thering is fibre core and covering, be coated with the structure of resin.Glass optical fiber is to make it softening by the lower end side of the base glass material of being manufactured by silica glass is heated, and this part being softened that stretches carries out thin footpath, thereby manufacture.In Japanese kokai publication hei 11-130458, record following content, that is, make the glass optical fiber of the high temperature after stretching by being supplied to the refrigerating unit of the tubular of the cooling gases such as helium, carry out forcibly before resin-coated thus cooling.
Utility model content
Problem of the present utility model is, a kind of manufacturing installation of glass optical fiber is provided, and the problem that it can break preventing glass optical fiber from contacting with refrigerating unit is carried out cooling with good cooling efficiency to glass optical fiber when occurring.
In order to solve problem, a kind of manufacturing installation of glass optical fiber is provided, it has: process furnace, it heats base glass material, makes this base glass material softening; And refrigerating unit, it carries out cooling to the glass optical fiber obtaining from base glass material wire drawing, refrigerating unit has the cooling tube of tubular, this cooling tube has the insertion path that glass optical fiber is passed through in inside, and in inserting path, supply with cooling gas, in cooling tube, insert the internal surface of path and the distance that is orthogonal to wire-drawing direction between glass optical fiber, at the inlet portion of cooling tube, being maximum, be minimum in the export department of cooling tube.
Also can be configured to, in cooling tube, insert the internal surface of path and the distance that is orthogonal to wire-drawing direction between glass optical fiber, from the inlet portion of cooling tube, towards the export department of cooling tube, diminish gradually.In addition, cooling tube can be also that a plurality of dividing bodies that form tubular are linked and formed along wire-drawing direction.In addition, in cooling tube, insert the internal surface of path and the distance that is orthogonal to wire-drawing direction between glass optical fiber, also can change continuously at the connection section place of dividing body.
The effect of utility model
According to the utility model, the problem that can break preventing glass optical fiber from contacting with refrigerating unit is carried out cooling with good cooling efficiency to glass optical fiber when occurring.
Accompanying drawing explanation
Fig. 1 is the concept map with the fiber manufacturing device of the glass optical fiber manufacturing installation that the utility model relates to.
Fig. 2 is the sectional view of the refrigerating unit in the manufacturing installation of glass optical fiber of Fig. 1.
Fig. 3 is the sectional view of cooling tube on whole length direction with the insertion path of same internal diameter.
Fig. 4 is the sectional view of the cooling tube that relates to of variation 1.
Fig. 5 is the sectional view of the cooling tube that relates to of variation 2.
Fig. 6 is the sectional view of the cooling tube that relates to of variation 3.
Embodiment
In the bottom from base glass material, in for the interval till resin-coated coating unit, owing to drawing the glass optical fiber of wire vent, be not supported, therefore sometimes produce the phenomenon that is called as line vibration that makes glass optical fiber vibration.May be due to the vibration of this line, and glass optical fiber is contacted with the internal surface of insertion path in refrigerating unit and produce broken string.On the other hand, the cooling efficiency of the glass optical fiber in refrigerating unit is definite by the flow of the internal surface of insertion path passing through for glass optical fiber and the distance of glass optical fiber, cooling gas etc.If in order to prevent that glass optical fiber from breaking because of contact, increase the internal diameter of the insertion path of refrigerating unit, the cooling efficiency of glass optical fiber can reduce.As noted above, if consider to prevent the broken string this point of glass optical fiber,, in the manufacturing installation of existing glass optical fiber, be difficult to improve the cooling efficiency of refrigerating unit.
Below, with reference to accompanying drawing, the embodiment of the manufacturing installation of the glass optical fiber that the utility model is related to describes.In addition, the utility model is not limited to these illustrations, but by shown in claims of the present utility model, comprises the content that is equal to claims of the present utility model and whole changes in scope thereof.
(structure of manufacturing installation)
Fig. 1 is the concept map with the fiber manufacturing device of the glass optical fiber manufacturing installation 1 that embodiment of the present utility model relates to.The manufacturing installation 1 of glass optical fiber has for heating the process furnace 2 of base glass material G at its upstream side, has refrigerating unit 7, measuring outside diameter device 8 in its downstream side.Process furnace 2 has: stove core barrel 3 cylindraceous, to its inner side, supply with base glass material G; And heating element 4, it surrounds stove core barrel 3.By making heating element 4 heating, thereby stove core barrel 3 is heated up, in the space of these stove core barrel 3 inner sides, form base glass material G is heated and makes the softening heating region of this base glass material G.In addition, be provided with gas supply part 5 in process furnace 2, it supplies with the Purge gas such as helium, nitrogen to heating region.
The support stick part on the top of base glass material G is controlled by feed unit 6, this base glass material G is delivered in process furnace 2, and makes the end portion of this base glass material G be positioned at the heating region of stove core barrel 3 inner sides.Like this, the lower end side that is fed into the base glass material G in process furnace 2 is heated and softens in heating region, stretches and thin footpath downwards, obtains glass optical fiber G1.
Below process furnace 2 (downstream side), be provided with the refrigerating unit 7 that has used the cooling gases such as helium, just cooling forcibly by refrigerating unit 7 from process furnace 2 glass optical fiber G1 out.Thus, glass optical fiber G1 is cooled to rapidly and approaches room temperature.In addition, in the downstream side of refrigerating unit 7, for example, be provided with the measuring outside diameter device 8 of laser type, utilize measuring outside diameter device 8 to measure the external diameter from refrigerating unit 7 glass optical fiber G1 out, and the external diameter of the glass optical fiber G1 during to wire drawing manages.
Downstream side at the manufacturing installation 1 of glass optical fiber, is disposed with: mould 9, and it is to the upper coating of glass optical fiber G1 uv-hardening resin; And UV irradiation equipment 10, it is for making coated uv-hardening resin sclerosis.Pass through the glass optical fiber G1 of mould 9 and UV irradiation equipment 10, in its periphery, formed the coating layer of uv-hardening resin, formed optical fiber G2.Then, optical fiber G2 is drawn into defeated belting 13 via guide reel 11,12, via screening plant 14 and dancer rools 15,16 and be transferred and be wound to coiling bobbin 17.
(structure of refrigerating unit)
Fig. 2 is the sectional view of the refrigerating unit 7 in the manufacturing installation 1 of glass optical fiber.Refrigerating unit 7 has the cooling tube 21 of tubular.On cooling tube 21, be formed with the insertion path 22 running through up and down.The upper end of cooling tube 21 is formed into oral area 21a, and lower end forms oral area 21b, and the glass optical fiber G1 forming from base glass material G wire drawing is drawn in the 21b of Bing Cong export department to pull out from inlet portion 21a.That is, in cooling tube 21, insert the glass optical fiber G1 advancing to the downstream side of wire-drawing direction A, and it is passed through from inserting the approximate centre of path 22.
Near the upper end of cooling tube 21, be connected with cooling gas supply-pipe 23, from cooling gas supply-pipe 23 to inserting the interior supply cooling gas of path 22.As cooling gas, use the helium of heat conductivity excellence etc.
The insertion path 22 of cooling tube 21 is towards the downstream side of the wire-drawing direction A of glass optical fiber G and narrow down gradually.That is, cooling tube 21 forms, and inserts the distance that is orthogonal to wire-drawing direction A between the internal surface 22a of path 22 and glass optical fiber G1 by insertion path 22, more less to the downstream side of wire-drawing direction A.
Specifically, in cooling tube 21, insert the internal surface 22a of path 22 and the distance that is orthogonal to wire-drawing direction A between glass optical fiber G1, maximum at the inlet portion 21a place of cooling tube 21, minimum at the 21b of the export department place of cooling tube 21.And cooling tube 21 forms, insert the internal surface 22a of path 22 and the distance that is orthogonal to wire-drawing direction A between glass optical fiber G1, from the inlet portion 21a of cooling tube 21, towards the 21b of export department, diminish gradually.
Cooling tube 21 for example total length (along the length of wire-drawing direction A) is 5m, and the internal diameter at inlet portion 21a place is 10mm, and the internal diameter at the 21b of export department place is 5mm left and right.Insertion path 22 for example forms from inlet portion 21a and makes internal diameter from 10mm, become the conical surface shape of 5mm towards the 21b of export department.
For the glass optical fiber G1 passing in the insertion path 22 at cooling tube 21, by the bottom from base glass material G, to for the interval till the mould 9 of application of resin, the position being made as on the pass course of this glass optical fiber G1 is free without L between confining region.On the other hand, cooling tube 21 is set to, and the inlet portion 21a that insertion path 22 becomes maximum diameter is configured on the position of comparing the central part Lc without L between confining region that more approaches glass optical fiber G1 with the 21b of export department.
(refrigerating work procedure of glass optical fiber)
In having the refrigerating unit 7 of cooling tube 21, the glass optical fiber G1 drawing out, from supplying with near upper end in the insertion path 22 of cooling tube 21 of cooling gas, advances to the downstream side of wire-drawing direction A and passes through this insertion path 22.And glass optical fiber G1, when interior by insertion path 22, be cooled to rapidly and approached room temperature by cooling gas.
Now, in inserting path 22, utilize the glass optical fiber G1 advancing to the downstream side of wire-drawing direction A, produce the tractive current towards the cooling gas in downstream side from the upstream side of wire-drawing direction A.Because the insertion path 22 of cooling tube 21 is less the closer to downstream side internal diameter, therefore utilize tractive current that the concentration of the cooling gas in downstream side is uprised, improve cooling efficiency, thus cooled glass optical fiber G1 efficiently.
In addition, sometimes after wire drawing with the glass optical fiber G1 that at a high speed skidding enters downstream, L internal vibration between without confining region and produce line vibration.Conventionally, because the line vibration of glass optical fiber is the vibration of a pattern, therefore maximum at the pars intermedia of point of fixity, if consider common device configuration, near the central part Lc of L, (top of refrigerating unit) becomes large between without confining region.In cooling tube 21, be disposed at approach glass optical fiber G1 without confining region between the inlet portion 21a of position of central part Lc of L, form the maximum diameter that inserts path 22, internal surface 22a and the distance that is orthogonal to wire-drawing direction A between glass optical fiber G1 of inserting path 22 are maximum.Therefore, can prevent that the glass optical fiber G1 of line vibration contacts with the internal surface 22a that inserts path 22.
Thus, the problem that can break preventing glass optical fiber from contacting with refrigerating unit is carried out cooling with good cooling efficiency to glass optical fiber when occurring.Therefore, can manufacture high-quality glass optical fiber with good yield rate.
In order to compare with cooling tube 21, the cooling tube 121 on whole length direction with the insertion path of same internal diameter shown in Figure 3.In cooling tube 121, if in order to improve the cooling efficiency of the cooling gas of supplying with from cooling gas supply-pipe 123, and reduce to insert the internal diameter of path 122, particularly approach line vibration become large glass optical fiber G1 without confining region between the position of central part Lc of L, glass optical fiber G1 contacts with the internal surface 122a that inserts path 122 and the possibility that occurs to break uprises.
Therefore, in cooling tube 121, in order to prevent that glass optical fiber G1 from breaking because the internal surface 122a with inserting path 122 contacts, and must be designed to guarantee larger internal diameter to a certain degree on whole length direction.In this case, need to increase the usage quantity of cooling gas, the cooling efficiency of glass optical fiber G1 is restricted.
Corresponding thereto, according to the cooling tube 21 of embodiment, can prevent that the position that glass optical fiber G1 on-line vibration is large from contacting with the internal surface 22a that inserts path 22, can improve the concentration of cooling gas simultaneously, realize the raising of cooling efficiency, even also can carry out fully cooling with a small amount of cooling gas.Thus, can not produce the problems such as broken string, efficiently cooled glass optical fiber G1.That is, can manufacture high-quality glass optical fiber G1 from base glass material G wire drawing, and can manufacture high-quality optical fiber G2.
Especially, if the internal surface 22a of the insertion path 22 of cooling tube 21 and the distance that is orthogonal to wire-drawing direction A between glass optical fiber G1, inlet portion 21a place at cooling tube 21 is maximum, the 21b of export department place at cooling tube 21 is minimum, can be suppressed at more reliably inlet portion 21a side glass optical fiber G1 and contact with the internal surface 22a that inserts path 22, can realize the raising of the cooling efficiency of the 21b of export department side simultaneously.In addition, due to the internal surface 22a of the insertion path 22 of cooling tube 21 and the distance that is orthogonal to wire-drawing direction A between glass optical fiber G1, from the inlet portion 21a of cooling tube 21, towards the 21b of export department of cooling tube 21, diminish gradually, therefore, the mobile of cooling gas becomes smooth, can, in the line vibration that suppresses glass optical fiber G1, further improve cooling efficiency.
And, according to present embodiment, than the internal diameter that uses inlet portion identical with present embodiment and total length is 5m, be the situation of the cooling tube 121 of same internal diameter in the longitudinal direction, can using the helium that uses same traffic during as cooling gas the temperature at the glass optical fiber G1 at the 21b of the export department place of cooling tube 21 reduce by 5 ℃, and do not make the broken string frequency deterioration of glass optical fiber G1.
(variation 1)
Fig. 4 is the sectional view of the cooling tube 21 that relates to of variation 1.Cooling tube 21A is identical at whole length direction top external diameter.And, the in the situation that of cooling tube 21A, also form, insert the internal surface 22a of path 22 and the distance that is orthogonal to wire-drawing direction A between glass optical fiber G1, from the inlet portion 21a of cooling tube 21A, towards the 21b of export department, diminish gradually.Thus, in cooling tube 21A, insert the internal surface 22a of path 22 and the distance that is orthogonal to wire-drawing direction A between glass optical fiber G1, maximum at the inlet portion 21a place of cooling tube 21A, minimum at the 21b of the export department place of cooling tube 21A.Even the in the situation that of using cooling tube 21A replacing cooling tube 21, also with the situation of using cooling tube 21 in the same manner, can prevent that position that glass optical fiber G1 on-line vibration is large from contact with the internal surface 22a that inserts path 22, in the concentration of downstream side raising cooling gas, realize the raising of cooling efficiency simultaneously.
(variation 2)
Fig. 5 is the sectional view of the cooling tube 21B that relates to of variation 2.Cooling tube 21B is that a plurality of dividing body 31a, the 31b that along the wire-drawing direction A of glass optical fiber G1, will form tubular link and form.Each dividing body 31a, 31b have respectively towards the diminishing through hole 32a of lower end side diameter, 32b, in cooling tube 21B, by linking each dividing body 31a, 31b, thereby through hole 32a, 32b are communicated with, and form and insert path 22.
In cooling tube 21B, the internal diameter of the through hole 32a of the lower end of the dividing body 31a of upper side, with the internal diameter of the through hole 32b of the upper end of the dividing body 31b of lower side be same size.Thus, in cooling tube 21B, the internal surface 22a of this insertion path 22 and the distance that is orthogonal to wire-drawing direction A between glass optical fiber G1, change continuously at the connection section place of dividing body 31a, 31b.
Therefore, cooling tube 21B also forms, and inserts the internal surface 22a of path 22 and the distance that is orthogonal to wire-drawing direction A between glass optical fiber G1, from the inlet portion 21a of cooling tube 21B, towards the 21b of export department, diminishes gradually.Thus, in cooling tube 21B, insert the internal surface 22a of path 22 and the distance that is orthogonal to wire-drawing direction A between glass optical fiber G1, maximum at the inlet portion 21a place of cooling tube 21B, minimum at the 21b of the export department place of cooling tube 21B.In cooling tube 21B, near the upper end of each dividing body 31a, 31b, be connected with respectively cooling gas supply-pipe 23, from these cooling gas supply-pipes 23 to inserting the interior supply cooling gas of path 22.
Even the in the situation that of using cooling tube 21B replacing cooling tube 21, also with the situation of using cooling tube 21,21A in the same manner, can prevent that position that glass optical fiber G1 on-line vibration is large from contact with the internal surface 22a that inserts path 22, in the concentration of downstream side raising cooling gas, realize the raising of cooling efficiency simultaneously.Especially, due to a plurality of dividing body 31a, 31b are linked and form cooling tube 21B, therefore, can easily make the cooling tube 21B of long size.
In addition, due in inserting path 22, near the upper end of each dividing body 31a, 31b, supply with cooling gas, therefore can further improve cooling efficiency.In addition, in the connection section at dividing body 31a, 31b, insert the internal surface 22a of path 22 and the distance that is orthogonal to wire-drawing direction A between glass optical fiber G1 and change continuously, therefore, the cooling gas of can be smoothly and easily making to insert in path 22 flows, and improves cooling efficiency.
(variation 3)
Fig. 6 is the sectional view of the cooling tube 21C that relates to of variation 3.Cooling tube 21C and cooling tube 21B in the same manner, are that a plurality of dividing body 35a, the 35b that will form tubular along the wire-drawing direction A of glass optical fiber G1 links and form.In cooling tube 21C, for example using is identical shaped dividing body 35a, 35b each other.Each dividing body 35a, 35b have respectively towards lower end side and the diminishing through hole 36a of diameter, 36b, in cooling tube 21C, by each dividing body 35a, 35b are linked, and through hole 36a, 36b are communicated with, and form and insert path 22.
In cooling tube 21C, the internal diameter of the through hole 36a of the lower end of the dividing body 35a of upper side is less than the internal diameter of the through hole 36b of the upper end of the dividing body 35b of lower side.Thus, in cooling tube 21C, insert the internal surface 22a of path 22 and the variation of the distance that is orthogonal to wire-drawing direction A between glass optical fiber G1, discontinuous at the connection section place of dividing body 35.Although there is this discontinuous part in cooling tube 21C, but insert the internal surface 22a of path 22 and the distance that is orthogonal to wire-drawing direction A between glass optical fiber G1, inlet portion 21a place at cooling tube 21C is maximum, more the downstream side to wire-drawing direction A becomes less, minimum at the 21b of the export department place of cooling tube 21C.In addition, in cooling tube 21C, near the upper end of each dividing body 35a, 35b, with cooling tube 21B in the same manner, be connected with respectively cooling gas supply-pipe 23.
In the situation that using cooling tube 21C, also with the roughly the same ground of the situation of using cooling tube 21,21A, 21B, can prevent that position that glass optical fiber G1 on-line vibration is large from contact with the internal surface 22a that inserts path 22, in the concentration of downstream side raising cooling gas, realize the raising of cooling efficiency simultaneously.In addition, with cooling tube 21B in the same manner, can easily make the cooling tube 21C of long size, can further improve cooling efficiency.And, because dividing body 35a, 35b are identical shaped, therefore can realize cost by the universalization of parts.
Claims (4)
1. a manufacturing installation for glass optical fiber, it has:
Process furnace, it heats base glass material, makes this base glass material softening; And
Refrigerating unit, it carries out cooling to the glass optical fiber obtaining from described base glass material wire drawing,
Described refrigerating unit has the cooling tube of tubular, and this cooling tube has the insertion path that described glass optical fiber is passed through in inside, and supplies with cooling gas in described insertion path,
In described cooling tube, the distance that is orthogonal to described wire-drawing direction between the internal surface of described insertion path and described glass optical fiber, is maximum at the inlet portion of described cooling tube, in the export department of described cooling tube, be minimum.
2. the manufacturing installation of glass optical fiber according to claim 1,
In described cooling tube, the distance that is orthogonal to described wire-drawing direction between the internal surface of described insertion path and described glass optical fiber, diminishes towards the export department of described cooling tube gradually from the inlet portion of described cooling tube.
3. the manufacturing installation of glass optical fiber according to claim 2,
Described cooling tube is that a plurality of dividing bodies that form tubular are linked and formed along described wire-drawing direction.
4. the manufacturing installation of glass optical fiber according to claim 3,
In described cooling tube, the distance that is orthogonal to described wire-drawing direction between the internal surface of described insertion path and described glass optical fiber, changes continuously at the connection section place of described dividing body.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2013113753A JP6291727B2 (en) | 2013-05-30 | 2013-05-30 | Glass fiber manufacturing apparatus and manufacturing method |
| JP2013-113753 | 2013-05-30 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203999369U true CN203999369U (en) | 2014-12-10 |
Family
ID=52039399
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420287264.5U Expired - Lifetime CN203999369U (en) | 2013-05-30 | 2014-05-30 | The manufacturing installation of glass optical fiber |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP6291727B2 (en) |
| CN (1) | CN203999369U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107900297A (en) * | 2017-11-07 | 2018-04-13 | 浙江大学 | A kind of marmem micrometer fibers preparation facilities and its method |
| CN111977961A (en) * | 2019-05-23 | 2020-11-24 | 住友电气工业株式会社 | Method and apparatus for manufacturing optical fiber |
| CN112456786A (en) * | 2019-09-09 | 2021-03-09 | 住友电气工业株式会社 | Method for manufacturing optical fiber and optical fiber cooling device |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62246837A (en) * | 1986-04-21 | 1987-10-28 | Sumitomo Electric Ind Ltd | Drawing furnace for optical fiber |
| JP2807335B2 (en) * | 1990-11-13 | 1998-10-08 | 古河電気工業株式会社 | Optical fiber cooling device |
| JP2793408B2 (en) * | 1992-01-13 | 1998-09-03 | 株式会社フジクラ | Optical fiber drawing equipment |
-
2013
- 2013-05-30 JP JP2013113753A patent/JP6291727B2/en active Active
-
2014
- 2014-05-30 CN CN201420287264.5U patent/CN203999369U/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107900297A (en) * | 2017-11-07 | 2018-04-13 | 浙江大学 | A kind of marmem micrometer fibers preparation facilities and its method |
| CN107900297B (en) * | 2017-11-07 | 2019-10-15 | 浙江大学 | A kind of preparation method of Ni-Mn-Ga suitable shape memory alloy micrometer fibers |
| CN111977961A (en) * | 2019-05-23 | 2020-11-24 | 住友电气工业株式会社 | Method and apparatus for manufacturing optical fiber |
| CN111977961B (en) * | 2019-05-23 | 2023-09-19 | 住友电气工业株式会社 | Optical fiber manufacturing method and optical fiber manufacturing device |
| CN112456786A (en) * | 2019-09-09 | 2021-03-09 | 住友电气工业株式会社 | Method for manufacturing optical fiber and optical fiber cooling device |
| CN112456786B (en) * | 2019-09-09 | 2024-04-30 | 住友电气工业株式会社 | Optical fiber manufacturing method and optical fiber cooling device |
Also Published As
| Publication number | Publication date |
|---|---|
| JP6291727B2 (en) | 2018-03-14 |
| JP2014231465A (en) | 2014-12-11 |
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