CN101190825A - Shaping device for optical glass preform - Google Patents
Shaping device for optical glass preform Download PDFInfo
- Publication number
- CN101190825A CN101190825A CN 200610145864 CN200610145864A CN101190825A CN 101190825 A CN101190825 A CN 101190825A CN 200610145864 CN200610145864 CN 200610145864 CN 200610145864 A CN200610145864 A CN 200610145864A CN 101190825 A CN101190825 A CN 101190825A
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- CN
- China
- Prior art keywords
- glass preform
- face
- anger
- hole
- giving vent
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- 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
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Classifications
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- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B40/00—Preventing adhesion between glass and glass or between glass and the means used to shape it, hold it or support it
- C03B40/04—Preventing adhesion between glass and glass or between glass and the means used to shape it, hold it or support it using gas
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- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B11/00—Pressing molten glass or performed glass reheated to equivalent low viscosity without blowing
- C03B11/06—Construction of plunger or mould
- C03B11/08—Construction of plunger or mould for making solid articles, e.g. lenses
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- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B7/00—Distributors for the molten glass; Means for taking-off charges of molten glass; Producing the gob, e.g. controlling the gob shape, weight or delivery tact
- C03B7/10—Cutting-off or severing the glass flow with the aid of knives or scissors or non-contacting cutting means, e.g. a gas jet; Construction of the blades used
- C03B7/12—Cutting-off or severing a free-hanging glass stream, e.g. by the combination of gravity and surface tension forces
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- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B2215/00—Press-moulding glass
- C03B2215/63—Pressing between porous dies supplied with gas, i.e. contactless pressing
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Manufacturing & Machinery (AREA)
- Re-Forming, After-Treatment, Cutting And Transporting Of Glass Products (AREA)
Abstract
The invention relates to a forming device of optical glass preform, which can be connected with a pressure source, so as to form glass preform. The forming device comprises a die holder provided with an operation hole surface around an axial direction, an operation hole defined by the operation hole surface and an air supply space; the air supply space is communicated with the operation hole and pressure source along the axial direction; the air supply space is provided with an air vent part on the operation hole surface around the axial direction; the air vent part can output the air of the pressure source to the operation hole by the lateral side of the operation hole surface, thus enabling the glass preform to float over the air vent part.
Description
Technical field
The present invention relates to a kind of building mortion, particularly a kind of glass preform that prevents produces the shaping device for optical glass preform of impact damage in forming process.
Background technology
As shown in Figure 1, for existing a kind of floating of a glass preform 2 that be used to be shaped gone up building mortion, comprise a shaping seat 1, this shaping seat 1 can be connected with the pneumatic supply (figure does not show) of a supply gas, this shaping seat 1 has the shaped hole 102 that a forming face 101, a cross section are in the shape of the letter V, and one be communicated with this shaped hole 102, this pneumatic supply and the aperture less than the air inlet port 103 of these glass preform 2 external diameters.By this, when a platinum outlet pipe (figure do not show) with a melten glass (figure does not show) when dripping in this shaped hole 102, the gas that this pneumatic supply is supplied can be delivered to this shaped hole 102 from this air inlet port 103, and make this melten glass float on this forming face 101 tops, and then to make this melten glass spinning-shaping be globular glass preform 2.
Though this building mortion is by these air inlet port 103 ejection gases, can reach the purpose of this glass preform 2 that is shaped, still, when reality was used, this building mortion but had following disappearance:
In the time will picking and placeing this glass preform 2, this building mortion needs this pneumatic supply is closed, so, owing to no longer include this glass preform 2 of ejection gas support, therefore, this glass preform 2 can fall on this forming face 101 fast because of action of gravity, at this moment, because this glass preform 2 is still in the condition of high temperature and hardness deficiency, therefore, this glass preform 2 tends to because of bump produces damage, and then becomes defective products, and yield is produced in influence.
As shown in Figure 2, be the existing one floating building mortion of going up of planting the glass preform 4 that is used to be shaped in addition, comprise a shaping seat 3, this shaping seat 3 can be connected with the pneumatic supply (figure does not show) of a supply gas, this shaping seat 3 has the shaped hole 302 that a forming face 301, a cross section are the U font, and number is communicated with this shaped hole 302, this pneumatic supply and the aperture less than the air inlet port 303 of these glass preform 4 external diameters.By this, when a platinum outlet pipe (figure do not show) with a melten glass (figure does not show) when dripping in this shaped hole 302, the gas that this pneumatic supply is supplied also can be delivered to this shaped hole 302 from these air inlet ports 303, and make this melten glass float on this forming face 301 tops, and then to make this melten glass spinning-shaping be this glass preform 4.
Yet this kind building mortion also needs this pneumatic supply is closed when picking and placeing this glass preform 4, and therefore, this glass preform 4 also can take place to produce the problem of damage because of clashing into this forming face 301.
In addition, grind in order to save glass preform, multiple tracks eyeglass model pre-treatment processing procedure such as clean, also the someone to propose a kind of melten glass direct forming that makes be the method (No. the 5762673rd, United States Patent (USP)) of glass mirror, as Fig. 3, shown in 4, this kind method is to utilize a mechanical arm 6 to drive four Working positions of a bearing mould 7 in a working chamber 5 to rotate, this mechanical arm 6 has a left arm portion 601, an and right arm portion 602, this left side, right arm portion 601,602 can be along a horizontal direction mutually and close or separate, this bearing mould 7 has a left die body 701 that is installed in this left arm portion 601, one is installed in the right die body 702 of this right arm portion 602, reaches one by this left side, right die body 701,702 and close the shaping pore 703 that defines.So, when these mechanical arm 6 these bearing moulds 7 of drive turn to one first Working position (glass preform is shaped and distinguishes), one platinum outlet pipe (figure does not show) can drip to a melten glass (figure does not show) in this shaping pore 703, be configured as a glass preform 9 and make this melten glass floated by the air-flow of spray, after this, this mechanical arm 6 can drive this bearing mould 7 and turn to one second Working position with this glass preform 9, and then turn to one the 3rd Working position (be shaped district), when the 3rd Working position, this left side, right arm portion 601,602 can drive this left side, right die body 701,702 is disconnected from each other along this horizontal direction, and make this glass preform 9 fall on the die 801 of a shaping dies 8 fast because of action of gravity, at this moment, one upper cores 802 of this shaping dies 8 can move down, and is a glass mirror 901 with these glass preform 9 press moldings.
Though, this manufacturing process passes through said apparatus, can make the melten glass direct forming is glass mirror, yet, this kind building mortion is when transferring this glass preform 9, this glass preform 9 also can be because of action of gravity falls on this time die 801 fast, and therefore, this glass preform 9 also can take place to produce the problem of damage because of clashing into this time die 801.
Summary of the invention
Therefore, the object of the present invention is to provide a kind of glass preform that prevents in forming process, to produce the shaping device for optical glass preform of impact damage.
Shaping device for optical glass preform of the present invention, be connected with a pneumatic supply, and the glass preform that can be shaped, this building mortion comprises a die holder, this die holder has one around an axial operation hole face, the one operation hole that is defined by this operation hole face, and one axially and can be communicated with the air supply space of this operation hole and this pneumatic supply around this, this air supply space has one around this axially and be formed at the portion of giving vent to anger on this operation hole face, this portion of giving vent to anger can export in this operation hole from the side direction of this operation hole face gas with this pneumatic supply, makes this glass preform float on this portion top of giving vent to anger.
The present invention is described in detail below in conjunction with drawings and Examples.About aforementioned and other technology contents, characteristics and effect of the present invention, in the following detailed description that cooperates with reference to two graphic preferred embodiments, can clearly understand.
Description of drawings
Fig. 1 is the cross-sectional schematic of an existing a kind of building mortion and a glass preform;
Fig. 2 is the cross-sectional schematic of an existing another kind of building mortion and a glass preform;
Fig. 3 is the cross-sectional schematic of existing another kind of building mortion in a second position;
Fig. 4 is the cross-sectional schematic of this building mortion in one the 3rd position;
Fig. 5 is a die holder of shaping device for optical glass preform one first preferred embodiment of the present invention and the cross-sectional schematic of a platinum outlet pipe;
Fig. 6 is the cross-sectional schematic of this die holder and a glass preform;
Fig. 7 is the view of a similar Fig. 6, illustrates that bearing part is positioned at the first location away from this portion of giving vent to anger, and this moment, this bearing part was organized in this die holder up;
Fig. 8 is the view of a similar Fig. 7, illustrates that this bearing part moves up and the portion of giving vent to anger of this die holder is blocked sealing gradually, and this glass preform is slowly descended because of the minimizing of gas spray volume;
Fig. 9 is the view of a similar Fig. 8, illustrates that bearing part is positioned near the second position of this portion of giving vent to anger and this glass preform is slow to fall on a loading end of this bearing part;
Figure 10 is the view of a similar Fig. 9, illustrates that this bearing part is displaced downwardly to this die holder of disengaging; And
Figure 11 is the cross-sectional schematic of shaping device for optical glass preform one second preferred embodiment of the present invention and a glass preform.
Embodiment
Before proposing detailed description, be noted that in the following description similarly assembly is to represent with identical numbering.
Consult Fig. 5,6,7, one first preferred embodiment of shaping device for optical glass preform of the present invention, can be connected with several air-supply duct 100 of a pneumatic supply (figure does not show), and can make a melten glass 210 that drips from a platinum outlet pipe 200 be configured as a pre-type body 220 of globular glass with an outer diameter D, this building mortion comprises: a die holder 10, and a bearing part 20.
This die holder 10 has the operation hole 14 that a upper die body 11, a lower mold body 12 in contrast to this upper die body 11, an operation hole face 13 around an axial X, are defined by this operation hole face 13, and one around this axial X and can be communicated with the air supply space 15 of the air-supply duct 100 of this operation hole 14 and this pneumatic supply.
This lower mold body 12 has a diapire 121, an and surrounding wall 122 that extends up along these diapire 121 peripheries, this upper die body 11 has one first end face 111, first bottom surface 112 in contrast to this first end face 111, and first periphery 113 that is connected in this first top, is spirally connected between the bottom surface 111,112 and with an inner peripheral surface of this surrounding wall 122, this diapire 12 has second end face 123 towards this first end face 111, and second bottom surface 124 in contrast to second end face 123.This first bottom surface 112 has first a level face 114 that extends from this first periphery 113 inwardly, and one extend to first of this operation hole face 13 inwardly, up from this first level face 114 and tilt facial 115, this second end face 123 has second a level face 125 that is parallel to this first level face 114 in fact, and one be parallel in fact this first tilt facial 115 second tilt facially 126, this surrounding wall 122 has number and is communicated in air vent 127 between this air supply space 15 and these air-supply duct 100.
This operation hole face 13 can be drawn a circle to approve out one and be connected in this first top, bottom surface 111, between 112 and by the last hole face 131 that is outer expanding shape down up, reach one and be connected in this second top, bottom surface 123, following hole face 132 between 124, a last hole section 141 that is defined by hole face 131 on this can be distinguished in this operation hole 14, an and following hole section 142 that is defined by this time hole face 132, should go up hole section 141 and have a jet opening 143 that is formed on this first bottom surface 112, this time hole section 142 has a handover opening 144 that is formed on this second end face 123, in the present embodiment, this jet opening 143 has a jet aperture D1 greater than the outer diameter D of this glass preform 220, and this handover opening 144 has a handover aperture D2 who equals this jet aperture D1 in fact.
This air supply space 15 is defined between this first bottom surface 112 and this second end face 123, this air supply space 15 has one and is defined in horizontal section 151, between this first and second level face 114,125 and is defined in this first and second tilt tilting section 152 between facial 115,126, and one around this axial X and be formed at the portion of giving vent to anger 153 on this operation hole face 13, in the present embodiment, this portion 153 of giving vent to anger is one around this axial X and the circular opening between this upper and lower hole face 131,132.When this upper die body 11 moves with respect to this lower mold body 12 along this axial X, can change the clearance height t of this air supply space 15 on this axial X, to adjust from the gas spray volume of these portion's 153 outputs of giving vent to anger, and, when this portion 153 of giving vent to anger from the side direction of this operation hole face 13 when the gas of this pneumatic supply is in this tilting section 152 exports this operation hole 14 to, can make this glass preform 220 float on this portion 153 tops of giving vent to anger.
Following hole section 142 sockets in this bearing part 20 and this operation hole 14, and can along this axial X one give vent to anger away from this first location (see figure 7) of portion 153 with one near mobile between the second position (see figure 9) of this portion 153 of giving vent to anger.This bearing part 20 has the periphery 22 that a loading end 21 towards this portion 153 of giving vent to anger, extends along these loading end 21 peripheries down, and a periphery footpath D3 who equals this jet aperture D1 in fact.
By this, as Fig. 5, shown in 6, when this platinum outlet pipe 200 drips this melten glass 210 in the last hole in this operation hole 14 section 141, the gas that this pneumatic supply is supplied through these air-supply duct 100 can be along the horizontal section 151 of this air supply space 15, tilting section 152, and export also ejection up in the hole section 141 on this to from this portion 153 of giving vent to anger, so, can make the melten glass 210 that drops float on this portion 153 tops of giving vent to anger, and then spinning-shaping is a globular glass preform 220, then, as Fig. 7,8, shown in 9, when this glass preform 220 is cooled between glass yield point temperature (Yield Point from the glass melting temperature, At) with softening point temperature (Softening Point, SP) behind the forming temperature between, this bearing part 20 can slowly be organized in this time hole section 142, and should move to this second position (see figure 9) from this first location (see figure 7), in this process, one 153 blocks sealing because this periphery 22 can be given vent to anger this gradually, and reduce gas spray volume step by step from this portion 153 ejection of giving vent to anger, therefore, this glass preform 220 can successively decreasing along with the gas spray volume, and gently descend on this loading end 21, after this, as shown in figure 10, the producer can be after closing this pneumatic supply, make this bearing part 20 break away from this die holder 10, and utilize this bearing part 20 these glass preforms 220 of carrying carrying, to carry out follow-up work flow.
Via above explanation, can again advantage of the present invention be summarized as follows:
The present invention is utilizing this bearing part 20 to accept in the process of this glass preform 220, can gradually this be given vent to anger portion 153 of the periphery 22 of this bearing part 20 blocks sealing, and reduce gas spray volume step by step from this portion 153 ejection of giving vent to anger, therefore, the present invention can make this glass preform 220 successively decreasing along with the gas spray volume, and gently descend on this loading end 21, so, the present invention can effectively prevent this glass preform 220 because of bump produces damage, thereby can effectively increase the production yield of this glass preform 220.
As shown in figure 11, be one second preferred embodiment of the present invention, this second preferred embodiment is similar to this first preferred embodiment, and its difference part is:
The cross section of the last hole section 141 in this operation hole 14 generally is the U font, and the difform glass preform 230 that can be shaped.So, this second preferred embodiment also can reach purpose and the effect identical with above-mentioned first preferred embodiment.
What deserves to be mentioned is, certainly the upper and lower die body 11,12 of this die holder 10 also can integrally formedly be made, and, this air supply space 15 also can constitute around this axial X and the air flue that points to this operation hole 14 by many, simultaneously, this portion 153 of giving vent to anger also can be made of a plurality of openings that these air flues are formed on this operation hole face 13, so, also can reach purpose and the effect identical with above-mentioned preferred embodiment.
Conclude above-mentioned, shaping device for optical glass preform of the present invention, can prevent that not only glass preform from producing impact damage in forming process, also can produce difform glass preform, so can reach the purpose of invention really by changing different upper die bodies.
The above person of thought, it only is preferred embodiment of the present invention, when not limiting scope of the invention process with this, promptly the simple equivalent of being done according to the present patent application claim and invention description content generally changes and modifies, and all still belongs in the scope that patent of the present invention contains.
Claims (14)
1. a shaping device for optical glass preform is connected with a pneumatic supply, in order to the glass preform that is shaped, it is characterized in that:
This shaping device for optical glass preform comprises:
One die holder, have one around operation hole that an axial operation hole face, is defined by this operation hole face, and one should be axially and can be communicated with the air supply space of this operation hole and this pneumatic supply around this, this air supply space has one around this axially and be formed at the portion of giving vent to anger on this operation hole face, this portion of giving vent to anger can export in this operation hole from the side direction of this operation hole face gas with this pneumatic supply, makes this glass preform float on this portion top of giving vent to anger.
2. according to the shaping device for optical glass preform of claim 1, it is characterized in that: this portion of giving vent to anger is one around this axial circular opening, this operation hole face is that a last hole face that is positioned at this portion top of giving vent to anger is drawn a circle to approve out on the boundary with this portion of giving vent to anger, and the following hole face of hole face in contrast to this, this operation hole is the boundary with this portion of giving vent to anger, distinguish a last hole section that is defined by hole face on this, and a following hole section that is defined by this time hole face.
3. according to the shaping device for optical glass preform of claim 2, it is characterized in that: hole section has a jet opening towards this time hole section and contiguous this portion of giving vent to anger on this, this jet opening has a jet aperture greater than the external diameter of this glass preform, this time hole section have one on this handover opening of hole section and contiguous this portion of giving vent to anger, this handover opening has a handover aperture that equals this jet aperture in fact.
4. according to the shaping device for optical glass preform of claim 3, it is characterized in that: this shaping device for optical glass preform also comprises a bearing part, this bearing part and the section socket of this time hole, and can axially give vent to anger the first location and of portion away from this near moving between the second position of this portion of giving vent to anger along this one, this bearing part has a loading end towards this portion of giving vent to anger, when this bearing part when this first location moves to this second position, this bearing part can block sealing with this portion of giving vent to anger gradually, this glass preform is delayed fall on this loading end.
5. according to the shaping device for optical glass preform of claim 4, it is characterized in that: this bearing part also has a periphery that extends along this loading end periphery down, an and periphery footpath that equals this jet aperture in fact, when this bearing part when this first location moves to this second position, this periphery can block sealing with this portion of giving vent to anger gradually, this glass preform is delayed fall on this loading end.
6. according to the shaping device for optical glass preform of claim 5, it is characterized in that: hole face is by being outer expanding shape down up on this.
7. according to the shaping device for optical glass preform of claim 1, it is characterized in that: this air supply space has a tilting section that extends to this portion of giving vent to anger inwardly, up.
8. according to the shaping device for optical glass preform of claim 1, it is characterized in that: this die holder also has a upper die body, an and lower mold body in contrast to this upper die body, this lower mold body has a diapire, an and surrounding wall that extends up along this diapire periphery, this upper die body has one first end face, one first bottom surface in contrast to this first end face, reach one and be connected in this first top, first periphery that is spirally connected between the bottom surface and with an inner peripheral surface of this surrounding wall, this diapire has second end face towards this first end face, and second bottom surface in contrast to second end face, this air supply space is defined between this first bottom surface and this second end face, this surrounding wall has the air vent that number is communicated with this air supply space, this upper die body can axially move with respect to this lower mold body along this, and changes the clearance height of this air supply space on this is axial.
9. shaping device for optical glass preform according to Claim 8, it is characterized in that: this operation hole face is determined one and is connected in this first top, last hole face between the bottom surface, reach one and be connected in this second top, following hole face between the bottom surface, this operation porose area is told a last hole section that is defined by hole face on this, an and following hole section that is defined by this time hole face, should go up the hole section and have a jet opening that is formed on this first bottom surface, this time hole section has a handover opening that is formed on this second end face, this portion of giving vent to anger be one around this axially and on this, circular opening between the face of following hole.
10. according to the shaping device for optical glass preform of claim 9, it is characterized in that: this jet opening has a jet aperture greater than the external diameter of this glass preform, and this handover opening has a handover aperture that equals this jet aperture in fact.
11. shaping device for optical glass preform according to claim 10, it is characterized in that: this shaping device for optical glass preform also comprises a bearing part, this bearing part and the section socket of this time hole, and can axially give vent to anger the first location and of portion away from this near moving between the second position of this portion of giving vent to anger along this one, this bearing part has a loading end towards this portion of giving vent to anger, when this bearing part when this first location moves to this second position, this bearing part can block sealing with this portion of giving vent to anger gradually, this glass preform is delayed fall on this loading end.
12. shaping device for optical glass preform according to claim 11, it is characterized in that: this bearing part also has a periphery that extends along this loading end periphery down, an and periphery footpath that equals this jet aperture in fact, when this bearing part when this first location moves to this second position, this periphery can block sealing with this portion of giving vent to anger gradually, this glass preform is delayed fall on this loading end.
13. the shaping device for optical glass preform according to claim 12 is characterized in that: hole face is by being outer expanding shape down up on this.
14. shaping device for optical glass preform according to Claim 8, it is characterized in that: this first bottom surface has first a level face that extends from this first periphery inwardly, and one extend to first of hole face this on face that tilts inwardly, up from this first level face, this second end face has second a level face that is parallel to this first level face in fact, and one be parallel to this in fact and first tilt facial second to tilt facially, and this air supply space can define a tilting section between this first and second inclination face.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200610145864 CN101190825A (en) | 2006-11-21 | 2006-11-21 | Shaping device for optical glass preform |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200610145864 CN101190825A (en) | 2006-11-21 | 2006-11-21 | Shaping device for optical glass preform |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101190825A true CN101190825A (en) | 2008-06-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200610145864 Pending CN101190825A (en) | 2006-11-21 | 2006-11-21 | Shaping device for optical glass preform |
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| CN (1) | CN101190825A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108290765A (en) * | 2015-11-25 | 2018-07-17 | 日本电气硝子株式会社 | The manufacturing method of glass material and the manufacturing device of glass material |
-
2006
- 2006-11-21 CN CN 200610145864 patent/CN101190825A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108290765A (en) * | 2015-11-25 | 2018-07-17 | 日本电气硝子株式会社 | The manufacturing method of glass material and the manufacturing device of glass material |
| US10737963B2 (en) | 2015-11-25 | 2020-08-11 | Nippon Electric Glass Co., Ltd. | Method for producing glass material and apparatus for producing glass material |
| CN108290765B (en) * | 2015-11-25 | 2021-06-08 | 日本电气硝子株式会社 | Method and apparatus for manufacturing glass material |
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Open date: 20080604 |