CN205953837U - Device of draing of optical glass bar - Google Patents
Device of draing of optical glass bar Download PDFInfo
- Publication number
- CN205953837U CN205953837U CN201620842924.0U CN201620842924U CN205953837U CN 205953837 U CN205953837 U CN 205953837U CN 201620842924 U CN201620842924 U CN 201620842924U CN 205953837 U CN205953837 U CN 205953837U
- Authority
- CN
- China
- Prior art keywords
- bar
- crucible
- mould
- optical glass
- viscosity adjustment
- 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- Withdrawn - After Issue
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Classifications
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P40/00—Technologies relating to the processing of minerals
- Y02P40/50—Glass production, e.g. reusing waste heat during processing or shaping
- Y02P40/57—Improving the yield, e-g- reduction of reject rates
Landscapes
- Re-Forming, After-Treatment, Cutting And Transporting Of Glass Products (AREA)
Abstract
The utility model provides a device of draing of optical glass bar. Belong to optical glass secondary form -ing technology field. It solves present secondary bar surface blemish to cause the problem that female bar utilization ratio is low. Its leading features is: include top -down, link soft crucible, viscosity regulation crucible and bar forming die as an organic whole, be equipped with the heating rod in the insulation furnace body outside soft crucible, viscosity regulation crucible and the bar forming die, bar forming die below is equipped with bar draw gear, bar forming die's cavity cross sectional area is less than the cavity cross sectional area who softens the crucible, the inner chamber surface of softening crucible, viscosity regulation crucible and bar forming die is continuous smoothness, it is equipped with the charge door to soften the crucible top. The utility model has the characteristics of can achieve success type defect or the unsuitable glass mother bar of directly producing the secondary bar to the surface and directly draw into required sub - bar to improve the product yields, the shaping of draing of the secondary of mainly used optical glass bar.
Description
Technical field
This utility model belongs to optical glass secondary field shaping technique.A kind of specifically related to bar post forming device,
It is mainly used in the secondary drawing molding of optical glass bar.
Background technology
Many optical element processing producers progressively turn to produce circular optical elements blank with optical preform at present,
Not only can avoid billot cutting after carry out round as a ball during equipment and personnel put into, and can reduce round as a ball during produced
Raw material give up.The preparation of optical fiber simultaneously is also required to make using optical preform, and therefore the demand of optical preform is also increasingly
Increase.But existing problems：One is part group of the lanthanides trade mark glass, such as H-ZLaF**, H-ZF** etc., because easy crystallize and striped etc. are asked
Topic, billot is accomplished by when producing could using after milling is even cut, and bar draw operation complexity, a difficulty are greatly and milling
Or the use of female rod material after cutting, can not be re-used as, cause a bar to utilize yields low, be not suitable for producing bar；Two is early stage
How stock's billot product changes system into the bar product needed for market, is also problem in urgent need to solve.
All at present secondary bars or the production of optical fiber, are all through feed and heating dress by once female prefabricated bar product
Put, re-start softening and draw, make son rod or the optical fiber of predetermined diameter specification；The limitation of this mode of production is：Draw
The sub- bar of rounding tee section be have to be round using the section of female rod material, and the surface defect of female rod material is required also very high,
And can not be sub- for circular for the glass-pulling of other noncircular cross sections section bar or optical fiber.
Content of the invention
A kind of shaped device that this utility model is aiming at above-mentioned existing problems and designs, can solve problem above,
Circular cross-section female rod material not only can be drawn into the sub- bar of circular cross-section it is also possible to other noncircular cross section bar such as bars
Material, ball material etc. are drawn into the sub- bar of circular cross-section, contribute to reducing the limitation of bar post forming.
Technical solution of the present utility model is：A kind of drawing device of optical glass bar it is characterised in that：Including
From top to bottom, softening crucible, viscosity adjustment crucible and the bar mould being connected as a single entity；Soften crucible, viscosity adjustment crucible
It is provided with heating rod with the thermal insulation furnace body outside bar mould；It is provided with bar traction apparatuss below bar mould；Bar
The cavity cross-sectional area of mould is less than the cavity cross-sectional area softening crucible；Soften crucible, viscosity adjustment crucible and
The surface of internal cavity of bar mould is continuous and derivable；Soften crucible top and be provided with charge door.
It is provided with rod between bar mould described in technical solution of the present utility model and bar traction apparatuss
Material apparatus for detecting diameter, has the function of detection bar diameter.
Its attemperating unit and micro-computer controlling apparatus 12 are also included in technical solution of the present utility model；Attemperating unit
Electrically connect with heating rod and micro-computer controlling apparatus.
Heating rod described in technical solution of the present utility model includes being separately positioned on softening crucible, viscosity adjustment
Three groups of each independent heating rods in crucible and bar mould external thermal insulation body of heater, three groups of heating rods independently connect temperature control dress
Put, make three part heating spaces separate and isolate.
Softening crucible described in technical solution of the present utility model, viscosity adjustment crucible and bar mould are
The softening crucible of tungsten material, viscosity adjustment crucible and bar mould, have the spy that resistant to corrosion is good and has stable high-temperature performance
Point.
The lumenal cross-section of the bar mould described in technical solution of the present utility model is circular, oval
Shape, square, triangle or other polygon.
The beneficial effects of the utility model are：Surface can there be is forming defect, be not suitable for being directly produced the glass of secondary bar
Glass female rod material, is directly drawn into required sub- bar, it is to avoid not directly the utilizing of this bar.Simultaneously can also be other shapes
Shape glass billot or the glass bar being not suitable for the direct drawing of commonsense method, are directly drawn into the bar of required specification.Reduction is drawn
The shape requirement to required female rod material for the system bar, improves the yields of product.
Brief description
Fig. 1 is structural representation of the present utility model.
Fig. 2 is the inner chamber top view of this utility model embodiment 1 crucible and bar mould.
Fig. 3 is the inner chamber top view of this utility model embodiment 2 crucible and bar mould.
Fig. 4 is the inner chamber top view of this utility model embodiment 3 crucible and bar mould.
Fig. 5 is the inner chamber top view of this utility model embodiment 4 crucible and bar mould.
Fig. 6 is the inner chamber top view of this utility model embodiment 5 crucible and bar mould.
In figure：1- softens crucible, 2- viscosity adjustment crucible, 3- bar mould, 4- glass to be processed billot, 5- softening
The auxiliary stove of crucible, the auxiliary stove of 6- viscosity adjustment crucible, the auxiliary stove of 7- bar mould, 8- charge door, 9- heating rod, the traction of 10- bar
Device, the bar of 11- molding, 12- micro-computer controlling apparatus, 13- bar detection means, 14- attemperating unit.
Specific embodiment
Below in conjunction with the accompanying drawings this utility model embodiment is further described.
Embodiment 1 is as shown in Figure 1 and Figure 2.A kind of drawing device of this utility model optical glass bar include from upper and
Under, the softening crucible 1, viscosity adjustment crucible 2 and the bar mould 3 that are connected as a single entity, be provided with bar below bar mould 3
Apparatus for detecting diameter 13, is provided with bar traction apparatuss 10 below bar diameter detection means 13, also include attemperating unit 14 and micro-
Computer controller 12.Soften crucible 1, viscosity adjustment crucible 2 and outer being all correspondingly provided with of bar mould 3 and soften the auxiliary stove of crucible
5th, the auxiliary stove of viscosity adjustment crucible 6 and the auxiliary stove of bar mould 7, softens the auxiliary stove of crucible 5, the auxiliary stove of viscosity adjustment crucible 6 and bar
The auxiliary stove of mould 7 intracavity is respectively equipped with 9 groups of each independent heating rod, and 9 groups of the heating rod of three groups of independences is filled with temperature control respectively
Put 14 electrical connections, attemperating unit 14 is electrically connected with micro-computer controlling apparatus 12.The cavity cross-sectional area of bar mould 3 is little
In the cavity cross-sectional area softening crucible 1, soften crucible 1, viscosity adjustment crucible 2 and bar mould 3 and be fastenedly connected shape
Become the entirety seamlessly transitting, and each with the separate auxiliary stove of softening crucible 5, the auxiliary stove of viscosity adjustment crucible 6, bar
The auxiliary stove of mould 7 and its attemperating unit 14.The cavity cross section softening crucible 1 is circle, and the cavity of bar mould 3 is horizontal
Section is also circle.Soften crucible 1 top and be provided with charge door 8.Soften crucible 1, viscosity adjustment crucible 2 and bar mould 3
For the softening crucible of tungsten material, viscosity adjustment crucible and bar mould, there is resistant to corrosion good and have stable high-temperature performance
Feature.Bar diameter detection means 13 is a kind of caliper, can with on-line measurement maximum gauge, minimum diameter, average diameter and
The data such as ovality, and the data of detection is transported to micro-computer controlling apparatus 12, micro-computer controlling apparatus 12 can Real time displaying
With the data preserving bar diameter detection means 13 conveying, consulted for operator, followed the tracks of and adjusted molding it is also possible to lead to
Cross connected attemperating unit and adjust viscosity and control the temperature of crucible to change glass viscosity, the less glass of temperature more high viscosity
Flow velocity is faster, and the amount of glass in injection moulding mould is more, the diameter that bar draws in the case that bar draw rate is fixing
Also bigger；Otherwise bar diameter is less, the purpose of adjust automatically bar diameter is reached with this.Attemperating unit 14 and micro computer control
Device 12 is conventional attemperating unit.Soften crucible 1 one end flare opening shape, be easy to glass and insert, the other end is necking
It is connected with the entrance of viscosity adjustment crucible 2.Viscosity adjustment crucible 2 opening is connected with softening crucible 1, necking end and bar molding
Mould 3 arrival end connects.Micro-computer controlling apparatus 12 also have detection data abnormal alarm function and record data preserves and looks into
Ask function.
It is 1000 × 160 × 16 H-ZLaF** optical glass strip material using specification that the present embodiment provides a kind of, draws
Becoming specification is φ 6+0.4 × 800 bar, its diameter（Average diameter, similarly hereinafter）Central value 6.2mm of span of control, maximum
It is 6.0mm for 6.4mm minima.Due to this trade mark rare earth element containing La, Nb, Ga, Bi etc., viscosity is little, easy crystallize and crystallize temperature
Interval up to 1000-1250 DEG C of degree, easily glass face crystallize in production billot and striped needs to process, and when producing bar
Surface is unable to partial operation, and overall processing consume is big, yields is low, is therefore not suitable for making a bar.But softening temperature is only
There are 720 DEG C, when the both bulk glasses after molding are heated to 750～800 DEG C, because far below recrystallization temperature interval, glass is soft
Do not allow during change to be also easy to produce crystallize, so being suitable for producing by means of which bar.
During practical operation, insert 800 × 160 × 16 glass billots to be processed from charge door 8, glass billot is in temperature
Soften for 750 DEG C of softened zones 1, the glass after softening has certain fluidity, enter viscosity control zone under gravity, through viscous
750～800 DEG C of control zone of degree temperature is one and progressively lowered the temperature to entering shaping area, the glass in shaping area after the regulation of viscosity
Journey, reduces with temperature in this process, and glass viscosity also incrementally increases the suitable state drawing bar, through leader to rod
Material traction apparatuss 10, and form the bar 11 of molding, the forming process Glass rod after the completion of leader under its downward draw
Material hauling speed is constant.It is provided with the excellent footpath apparatus for detecting diameter 13 of detection bar diameter function in bar traction apparatuss 10 front end,
, to micro-computer controlling apparatus 12, micro-computer controlling apparatus 12 excellent footpath related data is aobvious for data transfer bar diameter is detected
Present in display screen, for operator's monitoring, simultaneously also can be according to the value of detection in automatic adjusting rod footpath.
The steps that micro-computer controlling apparatus automatically control bar are as follows, arrange micro-computer controlling apparatus during operation first
12 is manual mode, and manually control mode cooperation adjustment viscosity adjustment crucible 2 injects the glass stream in bar mould 3
Amount, the temperature of viscosity adjustment crucible, draw rate and the temperature of bar mould that bar draws；Pulling process is made to go out stream
When molding diameter center value 6.2mm is stablized in smooth and excellent footpath, now monitoring to soften crucible 1, viscosity adjustment crucible 2 and bar
The temperature of mould 3, input micro-computer controlling apparatus are set as that bar draws Automatic Centering Control's value.Method determines into according to this
Type glass bar diameter of up to detection temperature corresponding during 6.0mm with 6.4mm, input micro-computer controlling apparatus 12, be set as temperature
The higher limit controlling and lower limit.Controlling value is set to auto state micro-computer controlling apparatus 12 after the completion of setting.Work as detection
Glass bar a diameter of central value 6.2mm when, micro-computer controlling apparatus keep viscosity adjustment crucible 2 injection bar mould
Glass flow rate in 3 is constant, and bar diameter does not also change, and the diameter of bar reaches setting diameter.
When the increase of bar forming diameter is detected, micro-computer controlling apparatus reduce viscosity by temperature controller and control crucible
Temperature, to increase molten glass viscosity in it, and then reduces glass flow rate in injection moulding mould, reaches and makes bar diameter gradually
Reduce, when the diameter of bar is close to setting central value 6.2mm, micro-computer controlling apparatus stop adjustment viscosity and control crucible temperature
Temperature, viscosity adjustment crucible 2 no longer reduces the glass flow rate in injection bar mould 3, and bar diameter is stable to be set
Central value 6.2mm.
In the same manner, when bar forming diameter change hour is detected, micro-computer controlling apparatus rise high viscosity by temperature controller and control
The temperature of crucible, to reduce molten glass viscosity in it, and then increases glass flow rate in injection moulding mould, reaches and makes bar straight
Footpath is gradually increased, and when the diameter of bar is close to setting diameter center value 6.2mm, micro-computer controlling apparatus stop adjustment viscosity
Adjust the control temperature of crucible temperature controller, viscosity adjustment crucible 2 is not further added by injecting the glass flow rate in bar mould 3,
Bar diameter is stable to set central value 6.2mm.
When bar diameter is detected and being more than maximum and be 6.4mm or be 6.0mm less than minima, or temperature controller
When temperature is unable to reach setting value, micro-computer controlling apparatus will send warning, reminds operator to correct asking of appearance in time
Topic.
Embodiment 2 is as shown in Figure 3.The cavity cross section softening crucible 1 in embodiment 2 is circle, bar mould
Cavity cross section is ellipse.
Embodiment 3 is as shown in Figure 4.The cavity cross section softening crucible 1 in embodiment 3 is circle, bar mould
Cavity cross section is rectangle.
Embodiment 4 is as shown in Figure 5.The cavity cross section softening crucible 1 in embodiment 4 is circle, bar mould
Cavity cross section is triangle.
Embodiment 5 is as shown in Figure 6.The cavity cross section softening crucible 1 in embodiment 5 is circle, bar mould
Cavity cross section is regular pentagon.
Claims (6)
1. a kind of drawing device of optical glass bar it is characterised in that：Including from top to bottom, the softening crucible that is connected as a single entity
（1）, viscosity adjustment crucible（2）With bar mould（3）；Soften crucible（1）, viscosity adjustment crucible（2）With bar shaping mould
Tool（3）It is provided with heating rod in outer thermal insulation furnace body；Bar mould（3）Lower section is provided with bar traction apparatuss（10）；Bar becomes
Pattern has（3）Cavity cross-sectional area be less than soften crucible（1）Cavity cross-sectional area；Soften crucible（1）, viscosity adjustment
Crucible（2）With bar mould（3）Surface of internal cavity be continuous and derivable；Soften crucible（1）Top is provided with charge door（8）.
2. a kind of optical glass bar according to claim 1 drawing device it is characterised in that：Described bar molding
Mould（3）With bar traction apparatuss（10）Between be provided with bar diameter detection means（13）.
3. a kind of optical glass bar according to claim 1 and 2 drawing device it is characterised in that：Also include its temperature
Control device（14）And micro-computer controlling apparatus（12）；Attemperating unit（14）With heating rod and micro-computer controlling apparatus（12）It is electrically connected
Connect.
4. a kind of optical glass bar according to claim 1 and 2 drawing device it is characterised in that：Described heating
Rod includes being separately positioned on softening crucible（1）, viscosity adjustment crucible（2）With bar mould（3）Three groups in external thermal insulation body of heater
Each independent heating rod（9）.
5. a kind of optical glass bar according to claim 1 and 2 drawing device it is characterised in that：Described softening
Crucible（1）, viscosity adjustment crucible（2）With bar mould（3）For the softening crucible of tungsten material, viscosity adjustment crucible and rod
Material mould.
6. a kind of optical glass bar according to claim 1 and 2 drawing device it is characterised in that：Described bar
Mould（3）Lumenal cross-section be circular, oval, square, triangle or other polygon.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620842924.0U CN205953837U (en) | 2016-08-05 | 2016-08-05 | Device of draing of optical glass bar |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620842924.0U CN205953837U (en) | 2016-08-05 | 2016-08-05 | Device of draing of optical glass bar |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205953837U true CN205953837U (en) | 2017-02-15 |
Family
ID=57973743
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620842924.0U Withdrawn - After Issue CN205953837U (en) | 2016-08-05 | 2016-08-05 | Device of draing of optical glass bar |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205953837U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106082635A (en) * | 2016-08-05 | 2016-11-09 | 湖北新华光信息材料有限公司 | A kind of drawing device of optical glass bar |
-
2016
- 2016-08-05 CN CN201620842924.0U patent/CN205953837U/en not_active Withdrawn - After Issue
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106082635A (en) * | 2016-08-05 | 2016-11-09 | 湖北新华光信息材料有限公司 | A kind of drawing device of optical glass bar |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20170215 Effective date of abandoning: 20190430 |
|
| AV01 | Patent right actively abandoned |