CN208440520U - A kind of T shape glass sleeve applied to variable diameter caudal peduncle preform - Google Patents
A kind of T shape glass sleeve applied to variable diameter caudal peduncle preform Download PDFInfo
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- CN208440520U CN208440520U CN201820837626.1U CN201820837626U CN208440520U CN 208440520 U CN208440520 U CN 208440520U CN 201820837626 U CN201820837626 U CN 201820837626U CN 208440520 U CN208440520 U CN 208440520U
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- preform
- glass sleeve
- metal platen
- shape glass
- caudal peduncle
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Abstract
The utility model relates to a kind of T shape glass sleeves applied to variable diameter caudal peduncle preform, the preform formed through wire drawing passes through among glass sleeve, wire drawing to soon at the end of, T shape glass sleeve follows preform to decline together, T shape glass sleeve can be stuck in fire door, outward flange is contacted with fiber drawing furnace fire door, and fire door sealing both can be enhanced, and is in turn avoided cloche transition and is protruded into furnace and meet high temperature melt and prefabricated rods adhesion.Silica wool is fixed between inward flange and metal platen simultaneously, pass through the gap between silica wool seal glass sleeve wall and preform, metal platen is made of two semicircles, metal platen is facilitated to dismantle, it prevents metal platen from rotating by anti-rotation groove simultaneously, prevents metal platen rotation from causing preform surface defect.
Description
Technical field
The utility model creation belongs to optical fiber production technical field, is applied to variable diameter caudal peduncle predispersed fiber more particularly, to one kind
The T shape glass sleeve of stick processed.
Background technique
Preform is used to the material preforms of drawing optical fiber, is the core starting materials for manufacturing quartzy series fibre.Light
The production of fine prefabricated rods needs to complete by fiber drawing furnace, since variable diameter is larger at special optical fiber prefabricated rods caudal peduncle, for example, some
Prefabricated rods need from diameter 150mm to gradually decrease to 50mm, so fire door sealing when caudal peduncle is into furnace is a problem, if using
Conventional cylindrical glass sleeve is easy to appear sleeve and melts when being easy to drive glass sleeve in drawing process close to high-temperature region
Change causes wire drawing that can not carry out with prefabricated rods adhesion situation, scraps more.
Utility model content
Technical problem to be solved by the utility model is: to solve above-mentioned technical problem in the prior art, to provide one
Kind is applied to the T shape glass sleeve of variable diameter caudal peduncle.
The technical scheme adopted by the utility model to solve the technical problem is as follows: a kind of be applied to variable diameter caudal peduncle optical fiber prefabricating
The T shape glass sleeve of stick, comprising:
The outward flange outwardly protruded at the top of the cylinder is arranged in cylinder, and cylinder inboard wall forms inward flange, and setting exists
The metal platen for being used to fix silica wool above silica wool is arranged in silica wool above the inward flange；
Metal platen is circular ring shape, and by being mutually stuck by buckle, and the outer edge of metal platen forms anti-rotation
Groove；
The diameter of the intermediate throughholes of the metal platen is less than the diameter for the intermediate throughholes that inward flange is formed.
Preferably, the T shape glass sleeve applied to variable diameter caudal peduncle preform of the utility model, the metal platen
The diameter of intermediate throughholes is the 1/3-1/5 of cylinder internal diameter.
Preferably, the T shape glass sleeve applied to variable diameter caudal peduncle preform of the utility model, outward flange bottom surface is set
It is equipped with quartzy felt.
Preferably, the T shape glass sleeve applied to variable diameter caudal peduncle preform of the utility model, the cylinder it is outer
Annular quartzy felt is also equipped on barrel.
Preferably, the T shape glass sleeve applied to variable diameter caudal peduncle preform of the utility model, the cylinder is by pushing up
End be the lower shell of inward flange and top is that the upper shell that is set at the top of lower shell of outward flange forms, upper shell and lower shell
It is mutually bonded.
The beneficial effects of the utility model are:
The T shape glass sleeve applied to variable diameter caudal peduncle preform of the utility model, the predispersed fiber formed through wire drawing
Stick processed passes through among glass sleeve, wire drawing to soon at the end of, T shape glass sleeve follows preform to decline together,
T shape glass sleeve can be stuck in fire door, and outward flange is contacted with fiber drawing furnace fire door, and fire door sealing both can be enhanced, in turn avoided glass
Glass cover transition is protruded into furnace and meets high temperature melt and prefabricated rods adhesion.Silica wool is fixed between inward flange and metal platen simultaneously,
By the gap between silica wool seal glass sleeve wall and preform, metal platen is made of two semicircles, convenient
Metal platen disassembly, while preventing metal platen from rotating by anti-rotation groove, prevent metal platen rotation from causing preform
Surface defect.
Detailed description of the invention
The present invention will be further described with reference to the accompanying drawings and examples.
Fig. 1 is the cross-sectional view of the T shape glass sleeve applied to variable diameter caudal peduncle of the utility model；
Fig. 2 is the state diagram in wire drawing of the T shape glass sleeve applied to variable diameter caudal peduncle of the utility model；
Fig. 3 is state diagram when the T shape glass sleeve applied to variable diameter caudal peduncle of the utility model is stuck in fire door；
Fig. 4 is the bottom view of the T shape glass sleeve applied to variable diameter caudal peduncle of the utility model；
Fig. 5 is the side view of the metal platen of the utility model；
Fig. 6 is the bottom view of the metal platen of the utility model；
Fig. 7 is a kind of schematic diagram of structure of the cylinder of the utility model；
Preform bottom is omissive representation in Fig. 2 and Fig. 3.
Appended drawing reference in figure are as follows:
1- cylinder；2- outward flange；21- quartz felt；22- loop wire quartz felt；3- metal platen；31- buckle；32- anti-rotation is recessed
Slot；4- silica wool；5- inward flange；7- fiber drawing furnace；8- caudal peduncle hanging head；9- preform.
Specific embodiment
It should be noted that in the absence of conflict, the spy in embodiment and embodiment in the utility model creation
Sign can be combined with each other.
The utility model create description in, it is to be understood that term " center ", " longitudinal direction ", " transverse direction ", "upper",
The orientation or position of the instructions such as "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outside"
Relationship is to be based on the orientation or positional relationship shown in the drawings, and is merely for convenience of description the utility model and creates and simplify description,
Rather than the device or element of indication or suggestion meaning must have a particular orientation, be constructed and operated in a specific orientation, because
This should not be understood as the limitation created to the utility model.It is unless otherwise indicated, " more in the description that the utility model is created
It is a " it is meant that two or more.
In the description that the utility model is created, it should be noted that unless otherwise clearly defined and limited, term
" installation ", " connected ", " connection " shall be understood in a broad sense, for example, it may be fixedly connected, may be a detachable connection or one
Connect to body.For the ordinary skill in the art, it can understand that above-mentioned term is practical new at this by concrete condition
Concrete meaning in type creation.
The utility model will be described in detail below with reference to the accompanying drawings and embodiments creates.
Embodiment
The present embodiment provides a kind of T shape glass sleeves applied to variable diameter caudal peduncle preform, as shown in Figure 1, comprising:
The outward flange 2 outwardly protruded at 1 top of cylinder is arranged in cylinder 1, and 1 inner wall of cylinder forms inward flange 5,
The silica wool 4 of 5 top of inward flange is set, the metal platen 3 for being used to fix silica wool 4 of 4 top of silica wool is set；
Metal platen 3 is circular ring shape, as shown in Figure 5 and Figure 6, by by 31 semicircle that is mutually stuck of buckle form with
It is removed from the preform prepared convenient for metal platen 3, and the outer edge of metal platen 3 forms anti-rotation groove 32,
The cylinder 1 is located on the inner wall on 5 top of inward flange along the axial anti-rotation protrusion formed with the cooperation of anti-rotation groove 32 of cylinder 1,
Prevent metal platen 3 from rotating by above-mentioned cooperation.
The diameter of the intermediate throughholes of the metal platen 3 is less than the diameter for the intermediate throughholes that inward flange 5 is formed.
The diameter of 3 intermediate throughholes of metal platen is the 1/3-1/5 of 1 internal diameter of cylinder.Make prefabricated rods caudal peduncle by variable diameter
Place changes.
Use process such as Fig. 2 and 3 institute of the T shape glass sleeve applied to variable diameter caudal peduncle preform of the present embodiment
Show, the preform formed through wire drawing passes through among glass sleeve, wire drawing to soon at the end of, T shape glass sleeve with
Decline together with preform, T shape glass sleeve can be stuck in fire door, and outward flange 2 is contacted with 7 fire door of fiber drawing furnace, both can be with
Enhance fire door sealing, in turn avoids cloche transition and protrude into furnace and meet high temperature melt and prefabricated rods adhesion.Simultaneously inward flange 5 with
Silica wool 4 is fixed between metal platen 3, passes through the gap between 4 seal glass sleeve wall of silica wool and preform, gold
Belong to pressing plate 3 to be made of two semicircles, metal platen 3 facilitated to dismantle, while preventing metal platen 3 from rotating by anti-rotation groove 32,
Prevent the rotation of metal platen 3 from causing preform surface defect.
As shown in figure 4,2 bottom surface of outward flange is preferably provided with quartzy felt 21.Quartzy felt 21 can be in outward flange 2 and fiber drawing furnace
When 7 fire doors contact, buffer function is played, while gap between outward flange 2 and 7 fire door of fiber drawing furnace is sealed by quartzy felt 21, into
One step improves sealing performance.
As a kind of optional scheme, annular quartzy felt 22 is also equipped on the outer tube wall of the cylinder 1.Its act on it is outer
2 bottom surface of flange has quartzy felt 21 identical.
As a preferred solution, as shown in fig. 7, the cylinder 1 is by the lower shell that top is inward flange 5 and top
For the upper shell composition of outward flange 2 being set at the top of lower shell, upper shell is mutually bonded with lower shell.
Cylinder 1 is divided for upper shell and lower shell two parts so that cylinder 1 it is whole manufacture it is more convenient.
It is enlightenment, through the above description, related work people with the above-mentioned desirable embodiment according to the utility model
Member can carry out various changes and amendments in the range of without departing from this item utility model technical idea completely.This item is real
It is not limited to the contents of the specification with novel technical scope, it is necessary to its technology is determined according to scope of the claims
Property range.
Claims (5)
1. a kind of T shape glass sleeve applied to variable diameter caudal peduncle preform characterized by comprising
Cylinder (1), the outward flange (2) outwardly protruded being arranged at the top of the cylinder (1), cylinder (1) inner wall form convex
Edge (5), the silica wool (4) being arranged above the inward flange (5), what is be arranged above silica wool (4) is used to fix silica wool
(4) metal platen (3)；
Metal platen (3) is circular ring shape, by being mutually stuck by buckling (31), and the outer edge molding of metal platen (3)
There are anti-rotation groove (32)；
The diameter of the intermediate throughholes of the metal platen (3) is less than the diameter for the intermediate throughholes that inward flange (5) are formed.
2. the T shape glass sleeve according to claim 1 applied to variable diameter caudal peduncle preform, which is characterized in that institute
The diameter for stating metal platen (3) intermediate throughholes is the 1/3-1/5 of cylinder (1) internal diameter.
3. the T shape glass sleeve according to claim 1 applied to variable diameter caudal peduncle preform, which is characterized in that outer
Flange (2) bottom surface is provided with quartzy felt (21).
4. the T shape glass sleeve according to claim 1 applied to variable diameter caudal peduncle preform, which is characterized in that institute
It states and is also equipped with annular quartzy felt (22) on the outer tube wall of cylinder (1).
5. the T shape glass sleeve according to claim 1 applied to variable diameter caudal peduncle preform, which is characterized in that institute
Cylinder (1) is stated by the lower shell that top is inward flange (5) and the upper shell being set at the top of lower shell that top is outward flange (2)
Composition, upper shell are mutually bonded with lower shell.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820837626.1U CN208440520U (en) | 2018-05-31 | 2018-05-31 | A kind of T shape glass sleeve applied to variable diameter caudal peduncle preform |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820837626.1U CN208440520U (en) | 2018-05-31 | 2018-05-31 | A kind of T shape glass sleeve applied to variable diameter caudal peduncle preform |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208440520U true CN208440520U (en) | 2019-01-29 |
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ID=65092468
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820837626.1U Active CN208440520U (en) | 2018-05-31 | 2018-05-31 | A kind of T shape glass sleeve applied to variable diameter caudal peduncle preform |
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| CN (1) | CN208440520U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111056741A (en) * | 2020-01-08 | 2020-04-24 | 通鼎互联信息股份有限公司 | Sealing device and sealing method for tail handle of optical fiber preform |
| CN111484240A (en) * | 2020-03-19 | 2020-08-04 | 通鼎互联信息股份有限公司 | Rod hanging system and rod hanging method for original tail handle of optical fiber preform rod |
-
2018
- 2018-05-31 CN CN201820837626.1U patent/CN208440520U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111056741A (en) * | 2020-01-08 | 2020-04-24 | 通鼎互联信息股份有限公司 | Sealing device and sealing method for tail handle of optical fiber preform |
| CN111056741B (en) * | 2020-01-08 | 2024-01-16 | 通鼎互联信息股份有限公司 | Sealing device and sealing method for tail handle of optical fiber preform |
| CN111484240A (en) * | 2020-03-19 | 2020-08-04 | 通鼎互联信息股份有限公司 | Rod hanging system and rod hanging method for original tail handle of optical fiber preform rod |
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