CN212640278U - Optical glass square blank preparation device - Google Patents
Optical glass square blank preparation device Download PDFInfo
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- CN212640278U CN212640278U CN202020778295.6U CN202020778295U CN212640278U CN 212640278 U CN212640278 U CN 212640278U CN 202020778295 U CN202020778295 U CN 202020778295U CN 212640278 U CN212640278 U CN 212640278U
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Abstract
The utility model discloses a square blank preparation facilities of optical glass. Belongs to the technical field of one-step molding of optical glass melting. The method mainly solves the problems that the existing optical element blank material needs to be cut from a strip material, so that the material is wasted and the processing efficiency is influenced. It is mainly characterized in that: comprises a forming die, a die cooling device, a tractor, a pressing and cutting machine and an annealing furnace; the groove width of the forming die is integral multiple of the width of the square blank to be processed; the pressing and cutting machine is arranged in the annealing furnace, and is provided with a longitudinal pressing and cutting blade and a transverse pressing and cutting blade which are used for cutting according to the width and the length of the square blank to be processed. The utility model discloses can produce the square blank that secondary die mould or cold processing can directly be used in the optical glass production link, remove the bold from and cut the process and reduce cutting material in a large number useless, improve the production efficiency of secondary die mould or cold processing. The utility model is suitable for a crown class, flint class, heavy barium flint and partial lanthanide glass's one shot forming.
Description
Technical Field
The utility model belongs to the technical field of optical glass smelting one shot forming. In particular to a preparation device for directly preparing a small cuboid blank by one-step molding of optical glass, which is mainly used for the one-step molding process of optical glass smelting.
Background
The optical glass plate material is usually processed into an optical element blank in two ways as a blank material of an optical element, wherein the sectional area size is more than 120mm multiplied by 8mm, the length direction can be arbitrarily cut within the range of 100-500 mm: one is to cut into small pieces and to form an optical element blank by secondary press molding, and the other is to cut into small pieces and to form an optical element blank by cold working such as grinding. In general, optical glass plates are first cut into small blocks of desired shape for further processing into optical element blanks, and some special optical element blanks must be made by cold working, such as triangular prism type products.
The optical glass plate cannot be made into a block material with a smaller volume is limited by a forming technology, the smaller the sectional area of the formed glass plate is during smelting, the higher the required traction advancing speed is under the condition of the same discharge amount, the higher the glass solidification and shaping difficulty in a mold is, and the appearance size and the internal stripe quality are difficult to ensure. If the glass can be molded into the lump material with a small section shape, the process of massive cutting can be omitted for the later process, the production efficiency can be greatly improved, and the cutting waste can be greatly reduced. Based on this reason, the utility model provides an optical glass forming device who optimizes can make the square that the sectional area is littleer with glass, and the minimum can reach 30mm x 10 mm's fritter, directly is used as secondary die mould blank or cold processing blank.
The utility model provides a preparation facilities and preparation method of the square blank of optical glass can directly produce the square blank of optical glass that the size is littleer when optical glass produces, and this blank can directly be used for the blank of the large-scale optical element of secondary die mould production, also can be used as the blank of optical element cold processing.
Disclosure of Invention
The utility model discloses to the problem that optical glass is difficult to the direct production small-size lump material, design a square blank preparation facilities of optical glass, can realize producing the square blank of small-size when optical glass produces, provide cold working or secondary die mould direct use.
The technical solution of the utility model is that: the device for preparing the optical glass square blank is characterized in that: comprises a forming die, a die cooling device, a tractor, a pressing and cutting machine and an annealing furnace; the forming die, the tractor and the annealing furnace are connected in sequence; the groove width of the forming die is integral multiple of the width of the square blank to be processed; the pressing and cutting machine is arranged in the annealing furnace, and is provided with a longitudinal pressing and cutting blade for cutting according to the width of the square blank to be processed and a transverse pressing and cutting blade for cutting according to the length of the square blank to be processed. The mold cooling device comprises a water cooling device and an air cooling device, and can rapidly cool and shape the glass liquid. The forming die is arranged below the discharge pipe, receives molten glass flowing down the discharge pipe and preliminarily shapes the molten glass into strips of required small sizes. The tractor is arranged between the back of the mould and the annealing furnace and can draw the preliminarily shaped glass strip material to the mesh belt of the annealing furnace at the back, and the running forward speed of the mesh belt of the tractor is adjustable and is consistent with the speed of the mesh belt of the annealing furnace. The bottom plate of the mould, the working surface at the upper part of the tractor and the mesh belt of the annealing furnace are on the same horizontal plane. The pressing and cutting machine enables the blade to work in a heating cover of the annealing furnace through transmission, and the blade can cut the glass strip material into required lengths by means of self lower temperature and lower pressure.
The utility model adopts the technical proposal that the press-cutting machine comprises a driving shaft, a driven shaft, a transmission chain and a press-cutting crawler belt, wherein the driving shaft is driven by a speed regulating motor to operate and is connected with the driven shaft through the transmission chain to drive the driven shaft to synchronously operate; the press-cutting crawler belt is arranged on the driving shaft and the driven shaft, and is provided with longitudinal and transverse press-breaking blades; the longitudinal pressure-breaking blades are arranged at intervals of 1 row which is multiplied by an integer of the width of the square blank to be processed; the transverse pressure-breaking blades are arranged at intervals according to the length of the square blank to be processed; the driving shaft and the driven shaft are provided with a cooling circulating water system, so that the whole bearing can be cooled and partial heat of the press-cut crawler belt can be taken away, and the whole device is fixed on the annealing furnace through the bearing.
The annealing furnace in the technical proposal of the utility model comprises a working chamber and a conveying mesh belt which comprise a plurality of heating sections with different temperatures and can independently control the temperature, and a press cutter is arranged on the heating section corresponding to the square blank glass to be processed; the conveying mesh belt is a conveying mesh belt with adjustable running speed. The annealing furnace consists of 5-40 sections, and each section is provided with a heating device, a thermocouple and a temperature control instrument, so that the temperature can be independently controlled.
The groove width of the forming die in the technical solution of the utility model is the width of the square blank to be processed; only a longitudinal pressure-breaking blade is assembled on the pressure-cutting machine; the annealing furnace comprises a working cavity containing 15 heating sections with different temperatures from 650 ℃ to 150 ℃ and capable of independently controlling the temperature, wherein the temperature of the second heating section is 550 ℃ to 630 ℃, and the press cutter is arranged on the second heating section.
The technical solution of the utility model in the pressure cutting machine on be equipped with the water cooling plant who is used for cooling pressure to cut the blade, can guarantee that the blade temperature can not be too high. The press cutting machine is driven to operate by a speed regulating motor. The press-cutting caterpillar band of the press-cutting machine is provided with a press-breaking blade which can press-break the glass strip material.
The technical solution of the utility model in the forming die groove width in 10~90mm within range.
The technical solution of the utility model is that the tractor and the glass contact part are provided with a high temperature resistant layer and an air-blowing cooling device. When in work, the tractor is continuously contacted with the bottom of the glass and is discontinuously contacted with the two sides of the glass at the same time to drive the glass to move forwards; the traction speed of the traction machine can be adjusted within a desired range.
The technical proposal of the utility model also comprises a forming table for bearing the forming die and the die cooling device; the forming table is provided with a space position adjusting mechanism and a bearing platform connected with the adjusting mechanism.
The utility model has the advantages that: the utility model discloses can produce the square blank that secondary die mould or cold processing can directly be used in the optical glass production link, remove the bold from and cut the process and reduce cutting material in a large number useless, improve the production efficiency of secondary die mould or cold processing.
Drawings
Fig. 1 is a schematic view of an apparatus for manufacturing a square blank of optical glass according to an embodiment of the present invention.
Fig. 2 is a schematic structural view of a pressing and cutting machine of a preparation device of the embodiment of the present invention.
In fig. 1: 01 is a material leaking pipe, 02 is a forming die, 03 is a die cooling device, 04 is a forming table, 05 is a tractor, 06 is a press-cutting machine, 07 is a conveying mesh belt, 08 is an annealing furnace, 09 is a square blank, and 10 is a transverse press-breaking blade.
In fig. 2: 61 is a driving shaft, 62 is a driven shaft, 63 is a transmission chain, 64 is a cooling water inlet pipe, 65 is a bearing, 66 is a cooling water outlet pipe, 67 is a power transmission gear, 68 is a press-cutting crawler belt, and a transverse press-cutting blade which is used for cutting the square blank to be processed according to the length is arranged on the press-cutting crawler belt.
Detailed Description
The invention is further described with reference to the following figures and examples.
An example is shown in figure 1. The utility model provides a pair of square blank preparation facilities of optical glass includes forming die 02, mould heat sink 03, forming table 04, tractor 05, press-cutting machine 06 and a annealing stove 08 that cools slowly, and forming die 02, tractor 05 and annealing stove 08 connect gradually. The purpose of the skip pipe 01 of the glass kiln is to lead molten glass out of the kiln to the device. The forming die 02 comprises a bottom plate, a side plate, a forming plug and the like, is of a conventional structure, and only has the groove width which is the width of a square blank to be processed, the groove width can also be integral multiple of the width of the square blank to be processed, and the groove width is selected within 10-90 mm. The mold cooling device 03 is a conventional supporting device of the forming mold 02, and can respectively cool the bottom plate, the side wall, the forming plug and other parts of the mold, so as to make the glass liquid into a glass strip material with a certain shape. The forming table 04 is provided with a space position adjusting mechanism and a bearing platform connected with the adjusting mechanism, the forming table 04 is of a conventional structure, the forming mold 02 and the mold cooling device 03 are fixedly placed on the bearing platform on the forming table 04, and the functions of lifting and moving the mold can be achieved. The contact part of the tractor 05 and the glass is provided with a high-temperature-resistant layer, and the tractor is provided with an air blowing cooling device, is installed at the outlet of a mold, takes a speed regulating motor as a power source, has the operation speed adjustable within 500 mm/min, can be tightly attached to the bottom and two sides of a glass strip material by an upper clamping groove of the tractor 05, and pulls the glass strip material to operate in the designated direction through friction force. The annealing furnace 08 comprises a working cavity containing a plurality of heating sections with different temperatures and capable of independently controlling the temperature, and 15 heating sections with different temperatures from 650 ℃ to 150 ℃, wherein the temperature of the second heating section is 630 ℃, the temperature of the 16 th to 20 th sections are reduced in a heat insulation cover, and the 21 st to 35 th sections are natural temperature reduction sections. A conveying mesh belt 07 is arranged in the annealing furnace 08, and the conveying mesh belt 07 is a conveying mesh belt with adjustable running speed. The press-cutting machine 06 comprises a speed regulating motor, a driving shaft 61, a driven shaft 62, a transmission chain 63 and press-cutting caterpillar bands 68, the press-cutting machine 06 is installed at a second heating section corresponding to the square blank glass to be processed in the annealing furnace 08, the press-cutting machine 06 is connected with the speed regulating motor through a transmission gear 67 and drives the driving shaft 61 to rotate, the driving shaft 61 drives the driven shaft 62 to synchronously operate through the transmission chain 63, the two shafts drive the press-cutting caterpillar bands 68 to operate, the press-cutting caterpillar bands are provided with transverse press-cutting blades 10 which are used for cutting the length of the square blank to be processed, and the transverse press-cutting blades 10 are arranged at intervals. The blades 10 on the press-cutting caterpillar 68 can also be provided with longitudinal press-breaking blades at intervals of an integer multiple of the width of the square blank to be processed minus 1 column. And the press cutting machine 06 is provided with a water cooling device for cooling the press cutting blade. The pinch-off crawlers 68 operate to operate the transverse pinch-off blades 10 to cut the moving glass ribbon into desired lengths within the lehr 08. The conveying mesh belt 07 is matched with a tractor 05 to drive the glass strip material to advance.
Adopt the embodiment of the utility model provides a preparation square blank of optical glass contains following step:
a. guiding the glass melt smelted and homogenized in the kiln into a forming die 02 through a material leakage pipe 01; the groove width of the forming die 02 is an integral multiple of the width of the square blank to be processed;
b. the mold cooling device 03 assists the forming mold 02 to conduct and cool the bottom and two sides of the molten glass, the molten glass is gradually solidified by absorbing the heat on the surface of the molten glass, and the molten glass is formed to be made into a glass strip material with required thickness;
c. the glass strip materials are dragged by a tractor 05 to move towards the inlet direction of the annealing furnace, and are blown for cooling at the same time, so that the glass strip materials are dragged to a conveying mesh belt 07 in the annealing furnace 08;
d. after entering an annealing furnace 08 with a certain temperature, the glass strip is cut into required length by a press cutting machine 06 when running to a heating section corresponding to the square blank glass to be processed along with a conveying mesh belt 07, and a square blank 09 is manufactured; the water cooling device cools the pressure breaking blade;
e. the square blank 09 is slowly cooled while moving forwards in the annealing furnace 08, and is picked up and boxed at the outlet of the annealing furnace 08 when the temperature is reduced to about 70 ℃ to become a product to be detected;
f. and sampling and inspecting the to-be-inspected product according to a certain rule to finish judgment.
The invention is further illustrated with reference to production process examples.
Example (b): the specific gravity of a certain grade of optical glass is 3.66 g per cubic centimeter, the glass softening temperature is 655 ℃, and the discharge amount of a kiln is 135 liters per day. The process for preparing the square blank of optical glass by using the device and the method of the invention is as follows:
guiding the homogenized glass liquid into a forming die 02 through a material leaking pipe 01, wherein the forming die 02 limits the spreading width of the glass liquid to be 32 mm; the drawing machine 05 draws the glass strand at a speed of 346mm per minute to control the thickness of the molten glass to about 8.5 mm. The mold cooling device 03 assists the forming mold 02 to conduct and cool the bottom and two sides of the molten glass, so as to promote the glass to be solidified into strips. The glass web is drawn to the lehr 08 and advanced in synchronism with the conveyor belt 07 of the lehr 08. The press cutting machine 06 is arranged at the second section of the annealing furnace 08, the press cutting machine 06 is driven by a motor to rotate and the rotating speed is adjustable for adjustingThe cutting cycle of the transverse press-breaking blade 10 mounted on the integral press-cutting machine 06 is adjusted to 10.8 cuts per minute in this example, and the length of the small piece of glass cut off is 32mm, thus producing a glass product with a volume of 32X 8.5mm3Square blank 09. In order to ensure that the glass strip materials do not burst in the annealing furnace 08, the annealing furnace 08 takes one meter as a section and is divided into 35 sections with the length of 35m, the first 15 sections are heating sections, each section is provided with a thermocouple and a temperature control instrument for independent control, and the temperature control gradient is as follows:
sections 16 to 35 of the annealing furnace 08 are natural cooling sections, sections 16 to 20 are cooled in the heat-insulating cover, and after section 21, the conveying net belt is exposed in the air for natural cooling, and fans can be added for auxiliary cooling according to needs.
Claims (8)
1. The device for preparing the optical glass square blank is characterized in that: comprises a forming die (02), a die cooling device (03), a tractor (05), a press-cutting machine (06) and an annealing furnace (08); the forming die (02), the tractor (05) and the annealing furnace (08) are connected in sequence; the groove width of the forming die (02) is integral multiple of the width of the square blank to be processed; the pressing and cutting machine (06) is installed inside the annealing furnace (08), and a longitudinal pressing and cutting blade which is used for cutting according to the width of the square blank to be processed and a transverse pressing and cutting blade (10) which is used for cutting according to the length of the square blank to be processed are arranged on the pressing and cutting machine (06).
2. An optical glass square blank manufacturing apparatus according to claim 1, characterized in that: the press-cutting machine (06) comprises a driving shaft (61), a driven shaft (62), a transmission chain (63) and a press-cutting crawler belt (68), wherein the driving shaft (61) is connected with a speed regulating motor through a gear (67) and drives the driven shaft (62) to synchronously rotate through the transmission chain (63); the press-cutting crawler belt (68) is arranged on the driving shaft (61) and the driven shaft (62), the press-cutting crawler belt (68) is provided with longitudinal and transverse press-breaking blades, and the longitudinal press-breaking blades are arranged at intervals of 1 row by multiple of the integer of the width of the square blank to be processed; the transverse pressure-breaking blades (10) are arranged at intervals according to the length of the square blank to be processed.
3. An optical glass square blank manufacturing apparatus according to claim 2, characterized in that: the annealing furnace (08) comprises a working cavity containing a plurality of heating sections with different temperatures and capable of independently controlling the temperature and a conveying mesh belt (07), and the press cutting machine (06) is arranged on the heating section corresponding to the square blank glass to be processed; the conveying net belt (07) is a conveying net belt with adjustable running speed.
4. An optical glass square blank manufacturing apparatus according to claim 3, characterized in that: the groove width of the forming die (02) is the width of a square blank to be processed; the pressing and cutting machine (06) is only provided with a transverse pressing and cutting blade (10); the annealing furnace (08) comprises a working cavity containing 15 heating sections with different temperatures from 650 ℃ to 150 ℃ and capable of independently controlling the temperature, wherein the temperature of the second heating section is 550 ℃ to 630 ℃, and the press cutter (06) is installed on the second heating section.
5. An optical glass square blank manufacturing apparatus according to any of claims 2-4, characterized in that: the pressing and cutting machine (06) is provided with a water cooling device for cooling the pressing and cutting blade, and a cooling circulating water inlet pipe (64) and a water outlet pipe (66) of the water cooling device are arranged on the driving shaft (61) and the driven shaft (62) and are fixed on the annealing furnace through a bearing (65).
6. An optical glass square blank manufacturing apparatus according to any of claims 1-4, characterized in that: the groove width of the forming die (02) is within the range of 10-90 mm.
7. An optical glass square blank manufacturing apparatus according to any of claims 1-4, characterized in that: the contact part of the tractor (05) and the glass is provided with a high temperature resistant layer and an air blowing cooling device.
8. An optical glass square blank manufacturing apparatus according to any of claims 1-4, characterized in that: the device also comprises a forming table (04) used for bearing the forming die (02) and the die cooling device (03); the forming table (04) is provided with a space position adjusting mechanism and a bearing platform connected with the adjusting mechanism.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020778295.6U CN212640278U (en) | 2020-05-12 | 2020-05-12 | Optical glass square blank preparation device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020778295.6U CN212640278U (en) | 2020-05-12 | 2020-05-12 | Optical glass square blank preparation device |
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| Publication Number | Publication Date |
|---|---|
| CN212640278U true CN212640278U (en) | 2021-03-02 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020778295.6U Withdrawn - After Issue CN212640278U (en) | 2020-05-12 | 2020-05-12 | Optical glass square blank preparation device |
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| CN (1) | CN212640278U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111559851A (en) * | 2020-05-12 | 2020-08-21 | 湖北新华光信息材料有限公司 | Optical glass square blank preparation device and blank preparation method |
-
2020
- 2020-05-12 CN CN202020778295.6U patent/CN212640278U/en not_active Withdrawn - After Issue
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111559851A (en) * | 2020-05-12 | 2020-08-21 | 湖北新华光信息材料有限公司 | Optical glass square blank preparation device and blank preparation method |
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Granted publication date: 20210302 Effective date of abandoning: 20220913 |
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| AV01 | Patent right actively abandoned |
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