CN201186896Y - Aspheric surface optical glass lens precise high temperature softening furnace - Google Patents
Aspheric surface optical glass lens precise high temperature softening furnace Download PDFInfo
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- CN201186896Y CN201186896Y CNU200720114441XU CN200720114441U CN201186896Y CN 201186896 Y CN201186896 Y CN 201186896Y CN U200720114441X U CNU200720114441X U CN U200720114441XU CN 200720114441 U CN200720114441 U CN 200720114441U CN 201186896 Y CN201186896 Y CN 201186896Y
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- cover plate
- combustion chamber
- stove
- hot mastication
- softening furnace
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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
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- Re-Forming, After-Treatment, Cutting And Transporting Of Glass Products (AREA)
Abstract
The utility model relates to a precise high temperature softening furnace for an aspheric optical glass lens, which comprises four following main parts: (1) a closed-type precise high temperature softening furnace with a stainless steel bore wall; (2) a stably movable cover plate which is made of heat resistant stainless steel and automatically opened and closed; (3) a cylinder feeding system which is provided with a bidirectional rack and driven by compressed air; a feeder is cooled by adopting water or air to avoid the bonding of glass and the feeder; and (4) a control system composed of a temperature control, logic control and automatic feeding control system, and an aspheric optical glass lens precise high temperature softening time control system, and a chassis. The control system respectively controls the temperature of the closed-type precise high temperature softening furnace, the opening and the closing of the cover plate, and the cylinder feeding system. The closed-type precise high temperature softening furnace, the cylinder feeding system and the control system are respectively fixed on the chassis.
Description
Technical field:
The utility model relates to the equipment of hot pressing aspherics glass ware forming, be specifically related to hot pressing glass ware forming equipment by the accurate hot mastication stove formation of many aspherics glass, do not need the working method of grinding, polishing, can obtain hot-forming high-precision non-spherical lens series.
Background technology:
Recent study is developed many new aspheric surface optical accessories, and aspherics glass lens compression molding technology is a kind of high-precision optical element processing technology, is the modern high technology technology of present mass production complex lens.It puts into high-precision mould to remollescent glass, and under the condition of pressurization and anaerobic of heating, disposable direct compression molding goes out to reach the optical element of service requirements.This technology has become one of state-of-the-art in the world optical element manufacturing technology method now, is the great revolution of optics industry aspect the opticglass part processing.Since this technology can directly compression moulding precision aspherics glass part, started the epoch that the photoelectron instrument extensively adopts the aspherics glass workpiece.
Aspherics glass workpiece compression molding technology is a complex art, needs the compression molding device of design specialized, adopts high-quality mould and selects reasonable technological parameter for use.Aspherics glass lens compression molding method is the optical glass blank of molten state to be poured into be higher than press molding in the low temperature mould of glass transition point more than 50 ℃.This method not only takes place on the die face that glass sticks in mould easily, and product also is easy to generate pore and cold moulding mark mark (wrinkle), is difficult for obtaining desired shapes and surface figure accuracy.
Afterwards, the casted die mould that adopts the exotic materials precision sizing to become, in the environment of non-oxidizing atmosphere, with glass and mould heat temperature raising together near the softening temperature of glass, adopt the isothermal pressurization, obtain high-precision shape face, but the manufacture method shortcoming of this glass optical element is: heat temperature raising, cooling all needs long time, so production rate is very slow.
The utility model content:
In order to solve the shortening heat temperature raising, time, in order to solve the problem on the die face that glass sticks in mould, in order to obtain molded of high-precision aspherics glass heat, in order to improve production rate, reduce cost, the purpose of this utility model provides the accurate hot mastication stove of novel aspherics glass lens, design and be developed into the accurate hot mastication stove of aspherics glass separately, the controlled temperature deviation is less than ± 2 ℃, changed traditional optical glass softening process, originally needed releasing agent, release materials such as porcelain box, novel process does not need above-mentioned multiple release materials, adopts for enterprise has saved the accurate hot mastication stove of aspherics glass that large quantities of funds and material be developed into, gas, water is one, the control and the logic controller of real-time monitoring and A.T.C, automatically control aspherics frit carries out softening temperature up to 1200 ℃.
To achieve these goals, the technical solution adopted in the utility model is:
The accurate hot mastication stove of aspherics glass lens is made up of 4 big major portions: the accurate hot mastication stove of aspherics glass lens, and it is made up of 4 big major portions: the accurate hot mastication stove of the closed type of (1) stainless steel thorax wall; (2) can surely employ the cover plate that opens and closes automatically that heat-resistance stainless steel is made; (3) has the cylinder feed system of two-way track with air-operated drive; Adopt water or air to cool off to feed appliance, glass and feed appliance can not bondd; (4) Controlling System and frame that the accurate hot mastication time controlled system of temperature control, logic control, self-feeding Controlling System and aspherics glass is formed; Controlling System is controlled temperature, the opening and closing of cover plate, the cylinder feed system of the accurate hot mastication stove of closed type respectively; The accurate hot mastication stove of closed type, cylinder feed system and Controlling System are separately fixed on the frame.
The accurate hot mastication stove of the aspherics glass that is designed to separately and can surely employ the cover plate that opens and closes automatically that heat-resistance stainless steel is made, heat up, make temperature reach homogenizing, the accurate aspherics glass stick of heating is expected till the above certain temperature of opticglass softening temperature Tg, has solved with the aspherics glass bar of very short time to precision and has softened; Shortened the time of heat temperature raising.
Air-operated drive has the cylinder feed system of two-way track, feed system is equipped with plummer, according to the different requirements of material, size, weight and fusing point of the aspherics glass workpiece of the various precisions of processing, determine speed, the time of feed system, the accurate position of material supporting station most significant digit.
Temperature control and logic control determine that monitoring in real time and automatic control aspherics glass bar carry out remollescent rate of warming and time.Accurate softening furnace is measured the actual temperature of accurate softening furnace with the two thermocouple of S type, with an independently overheated safety sensor, adopt a silicon controlled rectifier solid-state power controller of realizing the highest control resolution and the shortest time of response that tailor-made algorithm is arranged, temperature regulator is its state of continuous detecting repeatedly, guarantees the accurate and reliability of temperature detection data.Adopt water or air cooling can avoid pasting, design at interval by certain hour and adopt the accurate hot mastication stove of a plurality of opticglass thermoplastic aspherics glass bar owing to rapid heating causes the gripping element of processed optical element and plummer.
Adopt the hot pressing aspherics glass ware forming equipment of the accurate hot mastication stove formation of many aspherics glass and the aspherics glass precise compression molding new technology that tunnel annealing furnace is formed, use the aspherics glass workpiece raw material that designs and be developed into the various precisions of the accurate hot mastication stove work softening of aspherics glass separately, shortened the time of heat temperature raising, solved the problem on the die face that glass sticks in mould, obtained molded of high-precision aspherics glass heat, adopt new technology and improved production rate, reduced cost, improved the working efficiency of shaper greatly, simultaneously also improve the production efficiency of unit time, but also improved the performance of photoelectric instrument.The molded manufactured aspheric surface optical accessory of aspherics glass molds does not need operations such as traditional corase grind, correct grinding, polishing, edging center, and just can make part reach high dimension precision, surface figure accuracy and surfaceness; Can be easy to realize economically the batch process of accurate aspheric surface optical accessory.This method of forming can be assigned to part of functions in the outer device of heat pressing forming machines and go to finish, and has changed the way that the sort of function of past can only be carried out in the shaper device.
The utility model designs and is developed into the accurate hot mastication stove of aspherics glass separately, the controlled temperature deviation is less than ± 2 ℃, changed traditional optical glass softening process, originally needed release materials such as releasing agent, porcelain box, novel process does not need above-mentioned multiple release materials, adopts electricity, gas, water to be one, to monitor and the control and the logic controller of A.T.C, control the aspherics frit automatically and carry out softening temperature up to 1200 ℃ in real time for enterprise has saved the accurate hot mastication stove of aspherics glass that large quantities of funds becomes with material development.
Description of drawings:
Fig. 1 is the accurate hot mastication furnace structure of an opticglass of the present utility model front view;
Fig. 2 is the accurate hot mastication furnace structure of an opticglass of the present utility model side-view;
Fig. 3 is the structure iron of the accurate hot mastication stove of closed type aspherics glass of stainless steel thorax wall;
Fig. 4 is aspherics glass precision press-molding technology and hot mastication stove control flow chart;
Embodiment:
Below in conjunction with drawings and Examples this patent is further specified:
The accurate hot mastication stove of hot pressing aspherics glass mainly be to be used for heating process, make aspherics glass softening, it is the control of integrated real-time monitoring and A.T.C and logic controller that the accurate hot mastication stove of aspherics glass adopts electricity, gas, water, control the aspherics frit automatically carries out remollescent major parts structure and is made up of four major parts:
The accurate hot mastication stove of aspherics glass lens, it is made up of 4 big major portions: the accurate hot mastication stove of the closed type of (1) stainless steel thorax wall; (2) can surely employ the cover plate that opens and closes automatically that heat-resistance stainless steel is made; (3) has the cylinder feed system of two-way track with air-operated drive; Adopt water or air to cool off to feed appliance, glass and feed appliance can not bondd; (4) Controlling System and frame that the accurate hot mastication time controlled system of temperature control, logic control, self-feeding Controlling System and aspherics glass is formed; Controlling System is controlled temperature, the opening and closing of cover plate, the cylinder feed system of the accurate hot mastication stove of closed type respectively; The accurate hot mastication stove of closed type, cylinder feed system and Controlling System are separately fixed on the frame.
Concrete contour structures such as Fig. 1, shown in 2, burner hearth 1, fire door 2, feeding utensil 3, working face 4, water pipe 5, wallboard 6, Mgs 7, cylinder 8, temperature control table 9, inductive switch 10, control wire connector 13, power supply 14, gas meter 15, burner hearth 1 bottom offers fire door 2, feeding utensil 3 is fixed on the cylinder 8 of feed system and is connected to water pipe 5, working face 4 is fixed between two wallboards 6, Mgs 7 is fixed on a side of wallboard 6 and connects the electrically heated of burner hearth 1, temperature control table 9, inductive switch 10, control wire connector 13, power supply 14 connects burner hearth 1 respectively, and gas meter 15 connects the cylinder 8 of feed system.
As shown in Figure 3, the accurate hot mastication stove 1 of the closed type of stainless steel thorax wall, it comprises mineral wool combustion chamber 24, left and right sides fire door cover plate 19, front and rear cover plate 20, cover plate 17, combustion chamber securing cover plate 23, combustion chamber top cover retaining plate 21, mineral wool board 22, locating sleeve 18, cover plate sieve aperture ventilation cover 16, tungsten filament web member 25, porcelain tungsten filament locator card 26, softening furnace heating collar 27,28, the cover plate drive system, the central logic Controlling System of unit that linear lifting drive system and integrated logic control system become or networking, the fixing combustion chamber securing cover plate 23 all around of mineral wool combustion chamber 24, mineral wool board 22 is fixed on the top cover of mineral wool combustion chamber 24, it is fixing with mineral wool combustion chamber 24 that ventilation 16 of cover plate sieve aperture and locating sleeve 18 will cover combustion chamber top retaining plate 23, tungsten filament web member 25 and softening furnace heating collar 27,28 connect, by porcelain tungsten filament locator card 26 with softening furnace heating collar 27,28 are fixed on the inwall all around of mineral wool combustion chamber 24, two movement cylinders that the driving of cover plate 2 is controlled feeding drive system 3 by the logic control system on the panel are finished, when feeding drive system 3 with already heated material when accurate hot mastication burner hearth returns, the late release of available built-in FPGA Controlling System control cover plate, make feeding table to lower-most point, allow the aspherics frit of heating still be on its plummer, still be in opened condition because time of lag its cover plate is set, purpose is to reduce the rate of cooling of aspherics frit.
Principle of work, when being set to when mobile two cover plates, feed system opens immediately, allow aspherics frit and cushion cap to enter burner hearth, one works as aspherics frit supporting station has arrived the accurate position of elevated, cover plate is closed once more, helps reducing energy waste like this and can eliminate the explosion phenomenon that causes because of overheated.
Feed system: have the cylinder feed system of two-way track with air-operated drive, can do precision linear motion slowly.Different requirements according to material, size, weight and the fusing point of processing the aspherics frit, can adopt the feed system that plummer is installed, determine the accurate position of aspherics frit supporting station most significant digit, the speed of feed system and time, the rate of warming of workpiece and time-temperature control and logic control: the accurate hot mastication stove of aspherics glass adopts two thermocouple of S type and overheated safety sensor can guarantee the accurate and reliability of temperature detection data.It is the special-purpose thermocouple (control transmitter) of S that two thermocouple, heat controller connect by the temperature model of receiving in the stove; this transmitter is inserted in the identical ceramic protecting pipe as second S type excess temperature element; need cold junction transmitter (CJ) in addition; it is positioned on the thermocouple junctor of interface board; cooling agent links used water or air cools off clamper; the plug of two public affairs at rear portion is attached to the external refrigerant source, and two mothers' of forward quick binding mouth is the Returning pipe that cooling agent is attached to clamper.Realize the real-time monitoring of temperature and control and linear heating automatically with the precision digital controller.Measure the actual temperature of accurate softening furnace with the two thermocouple of S type, with an independently overheated safety sensor, adopt one to have the silicon controlled rectifier solid-state power controller of tailor-made algorithm to realize high resolution and short time of response, when the temperature of accurate softening furnace surpasses the extreme value of setting, disconnect the electric current of heating cycle with the mode that disconnects main alternating current contactor, in case temperature drops to the following level of caution, cross heat controller auto-closing heating loop, intelligence is the start-up logic circuit automatically, makes the temperature of accurate hot mastication stove steadily return to temperature accurately.Adopting another effect of water cooling is can avoid pasting owing to rapid heating causes the gripping element of processed optical element and plummer.Accurate softening furnace temperature keeps 450 ℃ when not working, scope 400-1200 ℃ of accurate hot mastication furnace temperature control.
As shown in Figure 4, aspherics glass precision press-molding technology and hot mastication stove control flow are: startup, and------Heating temperature---begins automatically------------rising and whether put in place,------temperature is crossed low or overheated, and------whether decline puts in place, and------intermittent time to---whether stopping---finishing the closure lid door delay time to close fire door to open fire door in the plummer rising to open fire door in heating.Wherein Heating temperature is hanged down and is returned heating schedule; Fire door is not opened and is put in place, time-delay, warning; Plummer does not rise, and it is not in place to rise, time-delay, warning, not closure lid door; Temperature is crossed low or overheated, and time-delay, warning continue heating; Be declined by less than the position, time-delay, warning are not related to fire door.
Claims (2)
1, the accurate hot mastication stove of aspherics glass lens, it is characterized in that: softening furnace is made up of 4 big major portions: the accurate hot mastication stove of the closed type of stainless steel thorax wall; Can surely employ the cover plate that opens and closes automatically that heat-resistance stainless steel is made; The cylinder feed system that has two-way track with air-operated drive; Adopt water or air to cool off to feed appliance, glass and feed appliance can not bondd; Controlling System and frame that the accurate hot mastication time controlled system of temperature control, logic control, self-feeding Controlling System and aspherics glass is formed; Controlling System is controlled temperature, the opening and closing of cover plate, the cylinder feed system of the accurate hot mastication stove of closed type respectively; The accurate hot mastication stove of closed type, cylinder feed system and Controlling System are separately fixed on the frame.
2, the accurate hot mastication stove of aspherics glass lens according to claim 1, it is characterized in that: the accurate hot mastication stove of the closed type of stainless steel thorax wall, it comprises the mineral wool combustion chamber, left and right sides cover plate, front and rear cover plate, cover plate, the combustion chamber securing cover plate, combustion chamber top retaining plate, mineral wool board, locating sleeve, cover plate sieve aperture ventilation cover, the tungsten filament web member, porcelain tungsten filament locator card, the softening furnace heating collar, the cover plate drive system, the central logic Controlling System of unit that linear lifting drive system and integrated logic control system become or networking, the fixing combustion chamber securing cover plate all around of mineral wool combustion chamber, mineral wool board is fixed on the top cover of mineral wool combustion chamber, the cover plate sieve aperture ventilates and locating sleeve will cover combustion chamber top retaining plate and the mineral wool combustion chamber is fixed, the tungsten filament web member is connected with the softening furnace heating collar, the softening furnace heating collar is fixed on the inwall all around of mineral wool combustion chamber by porcelain tungsten filament locator card.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU200720114441XU CN201186896Y (en) | 2007-09-25 | 2007-09-25 | Aspheric surface optical glass lens precise high temperature softening furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU200720114441XU CN201186896Y (en) | 2007-09-25 | 2007-09-25 | Aspheric surface optical glass lens precise high temperature softening furnace |
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| Publication Number | Publication Date |
|---|---|
| CN201186896Y true CN201186896Y (en) | 2009-01-28 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU200720114441XU Expired - Fee Related CN201186896Y (en) | 2007-09-25 | 2007-09-25 | Aspheric surface optical glass lens precise high temperature softening furnace |
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| CN (1) | CN201186896Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104843980A (en) * | 2015-03-27 | 2015-08-19 | 苏州科乐泰光学玻璃有限公司 | Glass softening furnace |
-
2007
- 2007-09-25 CN CNU200720114441XU patent/CN201186896Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104843980A (en) * | 2015-03-27 | 2015-08-19 | 苏州科乐泰光学玻璃有限公司 | Glass softening furnace |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Hangzhou Yongying Optic & Electronic Co., Ltd. Assignor: Yao Zuyi Contract record no.: 2011330000798 Denomination of utility model: Aspheric surface optical glass lens precise high temperature softening furnace Granted publication date: 20090128 License type: Exclusive License Record date: 20110623 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090128 Termination date: 20150925 |
|
| EXPY | Termination of patent right or utility model |