TWI619595B - Compression molding device and method of manufacturing optical component - Google Patents
Compression molding device and method of manufacturing optical component Download PDFInfo
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- TWI619595B TWI619595B TW102107640A TW102107640A TWI619595B TW I619595 B TWI619595 B TW I619595B TW 102107640 A TW102107640 A TW 102107640A TW 102107640 A TW102107640 A TW 102107640A TW I619595 B TWI619595 B TW I619595B
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- 230000003287 optical effect Effects 0.000 title claims description 35
- 238000004519 manufacturing process Methods 0.000 title claims description 20
- 238000000748 compression moulding Methods 0.000 title 1
- 238000000465 moulding Methods 0.000 claims abstract description 130
- 238000005096 rolling process Methods 0.000 claims abstract description 105
- 238000010438 heat treatment Methods 0.000 claims description 55
- 238000012545 processing Methods 0.000 claims description 40
- 238000003825 pressing Methods 0.000 claims description 32
- 238000001816 cooling Methods 0.000 claims description 28
- 239000012778 molding material Substances 0.000 claims description 28
- 238000012546 transfer Methods 0.000 claims description 23
- 238000000034 method Methods 0.000 claims description 17
- 238000003780 insertion Methods 0.000 claims description 10
- 230000037431 insertion Effects 0.000 claims description 10
- 238000000605 extraction Methods 0.000 claims 1
- 239000011521 glass Substances 0.000 description 21
- 239000000463 material Substances 0.000 description 11
- 230000002093 peripheral effect Effects 0.000 description 10
- 238000009826 distribution Methods 0.000 description 7
- 108010066057 cabin-1 Proteins 0.000 description 6
- 230000000052 comparative effect Effects 0.000 description 5
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 4
- 230000005499 meniscus Effects 0.000 description 4
- 238000010791 quenching Methods 0.000 description 4
- 238000009751 slip forming Methods 0.000 description 4
- 238000012360 testing method Methods 0.000 description 4
- 229910045601 alloy Inorganic materials 0.000 description 3
- 239000000956 alloy Substances 0.000 description 3
- 239000000919 ceramic Substances 0.000 description 3
- 239000007789 gas Substances 0.000 description 3
- 230000000171 quenching effect Effects 0.000 description 3
- 239000010935 stainless steel Substances 0.000 description 3
- 229910001220 stainless steel Inorganic materials 0.000 description 3
- UONOETXJSWQNOL-UHFFFAOYSA-N tungsten carbide Chemical compound [W+]#[C-] UONOETXJSWQNOL-UHFFFAOYSA-N 0.000 description 3
- 229910001080 W alloy Inorganic materials 0.000 description 2
- 229910002110 ceramic alloy Inorganic materials 0.000 description 2
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 230000006866 deterioration Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 239000007769 metal material Substances 0.000 description 2
- NFFIWVVINABMKP-UHFFFAOYSA-N methylidynetantalum Chemical compound [Ta]#C NFFIWVVINABMKP-UHFFFAOYSA-N 0.000 description 2
- 229910052757 nitrogen Inorganic materials 0.000 description 2
- 230000001590 oxidative effect Effects 0.000 description 2
- 238000002791 soaking Methods 0.000 description 2
- 229910003468 tantalcarbide Inorganic materials 0.000 description 2
- MZLGASXMSKOWSE-UHFFFAOYSA-N tantalum nitride Chemical compound [Ta]#N MZLGASXMSKOWSE-UHFFFAOYSA-N 0.000 description 2
- MTPVUVINMAGMJL-UHFFFAOYSA-N trimethyl(1,1,2,2,2-pentafluoroethyl)silane Chemical compound C[Si](C)(C)C(F)(F)C(F)(F)F MTPVUVINMAGMJL-UHFFFAOYSA-N 0.000 description 2
- QCWXUUIWCKQGHC-UHFFFAOYSA-N Zirconium Chemical compound [Zr] QCWXUUIWCKQGHC-UHFFFAOYSA-N 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- YISOXLVRWFDIKD-UHFFFAOYSA-N bismuth;borate Chemical compound [Bi+3].[O-]B([O-])[O-] YISOXLVRWFDIKD-UHFFFAOYSA-N 0.000 description 1
- 229910010293 ceramic material Inorganic materials 0.000 description 1
- 239000000112 cooling gas Substances 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 239000011261 inert gas Substances 0.000 description 1
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000005304 optical glass Substances 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
- 238000005498 polishing Methods 0.000 description 1
- 230000003252 repetitive effect Effects 0.000 description 1
- 238000012552 review Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
- 229910052726 zirconium Inorganic materials 0.000 description 1
Classifications
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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
- C03B11/02—Pressing molten glass or performed glass reheated to equivalent low viscosity without blowing in machines with rotary tables
-
- 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
-
- 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
- C03B11/12—Cooling, heating, or insulating the plunger, the mould, or the glass-pressing machine; cooling or heating of the glass in the mould
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B2215/00—Press-moulding glass
- C03B2215/50—Structural details of the press-mould assembly
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B2215/00—Press-moulding glass
- C03B2215/72—Barrel presses or equivalent, e.g. of the ring mould type
-
- 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
Abstract
壓模成形裝置，其構成為隔著屬於至少具備：形成有複數孔(52a)的板狀構件(52)；及在複數孔(52a)內能夠滾動的複數滾動體(53)之構成的單元，即，隔著可將複數滾動體(53)之各個一部份從複數孔(52a)突出在板狀構件(52)的表面使複數滾動體(53)收容在複數孔(52a)內的支架單元(5)，將成形模具(M)支撐在支撐台(3)上，藉此使複數滾動體(53)各個以點接觸狀支撐著成形模具(M)的下面。如此一來，就能夠控制成型模具(M)和支撐台(3)之間的熱交換，避免支撐台(3)的熱性影響波及成形模具(M)，並且能夠避免產生支撐台(3)和成形模具(M)的貼附。 The press molding apparatus is configured to include at least a plate member (52) having a plurality of holes (52a) formed therein and a plurality of rolling elements (53) capable of rolling in the plurality of holes (52a) That is, a plurality of rolling elements (53) can be protruded from the plurality of holes (52a) on the surface of the plate member (52) to accommodate the plurality of rolling elements (53) in the plurality of holes (52a). The holder unit (5) supports the forming mold (M) on the support table (3), whereby the plurality of rolling elements (53) each support the lower surface of the forming mold (M) in a point contact manner. In this way, it is possible to control the heat exchange between the forming mold (M) and the support table (3), avoiding the thermal influence of the support table (3) from affecting the forming mold (M), and avoiding the generation of the support table (3) and Attachment of the forming mold (M).
Description
本發明是關於利用精密加工後的成形模具對玻璃等成形素材進行壓製成形，藉此製造出玻璃鏡片等光學元件的壓模成形裝置及光學元件之製造方法。 The present invention relates to a press molding apparatus and an optical element manufacturing method for producing an optical element such as a glass lens by press molding a molding material such as glass by a precision molding die.
近年來，已知有藉由在其成形面精密加工成指定之表面精度的成形模具內收容光學用的玻璃素材，於加熱下進行壓製成形藉此轉印成形面，就不必對成形後之轉印面進行研削或研磨等後續加工，能夠製造出具有高精度光學功能面之玻璃鏡片等光學元件的方法。 In recent years, it has been known that a glass material for optics is accommodated in a molding die which is precisely machined to a predetermined surface precision on a molding surface thereof, and press molding is performed under heating to transfer the molding surface, so that it is not necessary to transfer the molding surface. A method in which an optical component such as a glass lens having a high-precision optical functional surface can be manufactured by performing subsequent processing such as grinding or polishing.
例如：專利文獻1中，揭示有加熱室、壓製室、冷卻室等處理室排列配置在圓周方向，將放有成形素材之成形模具依順序移送在該等處理室中的玻璃成形體之製造裝置。該製造裝置，其各處理室在爐體中由殼體包圍形成，並且在設置成可繞著中央之旋轉軸間歇性旋轉驅動的旋轉台安裝有試件台，將載置在該試件台的成形模具隨著旋轉台的旋轉驅動移送至各處理室，藉此連續性成形出玻璃成形體。 For example, Patent Document 1 discloses a manufacturing apparatus for a glass molded body in which processing chambers such as a heating chamber, a pressing chamber, and a cooling chamber are arranged in a circumferential direction, and a molding die in which a molding material is placed is sequentially transferred to the processing chambers. . In the manufacturing apparatus, each of the processing chambers is formed by a casing surrounded by a casing, and a test piece is mounted on a rotating table provided to be intermittently rotatable around a central rotating shaft, and is placed on the test piece table. The forming mold is transferred to the respective processing chambers in accordance with the rotational driving of the rotary table, whereby the glass molded body is continuously formed.
此外，專利文獻2中，揭示著對配置有加熱平台、加壓平台、冷卻平台的壓製機依順序移送成形用的模具藉此執行各平台之指定作業的模具移動方式之壓模成形機。該成形機，並不是如專利文獻1所示之將成形模具以載置在支撐台的狀態執行移送及各種處理，而是以模具搬運手臂往後段的平台移送成形模具，將成形模具直接載置在加熱區塊上設置的均熱板藉此執行各種處理。 Further, Patent Document 2 discloses a press molding machine that performs a mold moving method of performing a designated operation of each platform by sequentially transferring a molding die to a press in which a heating stage, a pressurizing stage, and a cooling stage are disposed. In the molding machine, the transfer mold and the various processes are performed in a state where the molding die is placed on the support table as shown in Patent Document 1, and the mold is conveyed by the mold transfer arm to the rear stage, and the molding die is directly placed. The soaking plates provided on the heating block thereby perform various processes.
另外，專利文獻3中，所揭示的成形裝置是一種不將成形模具移送在成形機內之方式的玻璃鏡片成形裝置，該裝置是以設置在成形機之固定部的3個突起支撐著成形模具，利用與成形模具配置成接近的加壓手段、加熱手段、冷卻手段施行各種處理藉此成形出指定形狀之玻璃鏡片。 Further, in Patent Document 3, the disclosed molding apparatus is a glass lens forming apparatus that does not transfer a forming mold into a molding machine, and the apparatus supports the forming mold by three projections provided at the fixing portion of the molding machine. The glass lens of a predetermined shape is formed by performing various processes by a pressurizing means, a heating means, and a cooling means which are disposed close to the forming die.
此外，專利文獻4中，揭示有在下模和下模保持構件之間配設複數的滾動構件，藉此於下模要***在固定軸側所準備的胴模內時，能夠促進下模之水平方向的順暢移動，將下模順暢***在胴模內使上模和下模的同軸性提高的壓模成形模具。 Further, Patent Document 4 discloses that a plurality of rolling members are disposed between the lower mold and the lower mold holding member, whereby the lower mold can be promoted when the lower mold is to be inserted into the mold prepared on the fixed shaft side. The smooth movement of the direction, the lower mold is smoothly inserted into the mold to form a mold for improving the coaxiality of the upper mold and the lower mold.
〔專利文獻1〕日本特公平7-29779號公報 [Patent Document 1] Japanese Special Fair 7-29779
〔專利文獻2〕日本特開2003-25100號公報 [Patent Document 2] Japanese Patent Laid-Open Publication No. 2003-25100
〔專利文獻3〕日本特開2004-149410號公報 [Patent Document 3] Japanese Patent Laid-Open Publication No. 2004-149410
〔專利文獻4〕日本再公表2008-053860號公報 [Patent Document 4] Japanese Laid-Open Publication No. 2008-053860
不過，專利文獻1的裝置，對於各處理室的溫度管理是能夠獨立並且精緻控制，能夠使成形模具不會隨著移送產生溫度變化，此外，又加上，當移送時的振動使成形模具內的成形素材產生偏位時，不但所成形的光學元件會厚度不均、形狀不良，還會因厚度不均造成壓製載重施加不均導致光學功能面的面精度變差，但根據專利文獻1的裝置時，利用旋轉台能夠對成形模具不造成振動且能夠順暢移送成形模具。如上述所示，專利文獻1的裝置，在製造具有高精度之光學功能面的光學元件時，其具備有非常優異的功能。 However, the apparatus of Patent Document 1 is capable of independent and fine control of the temperature management of each processing chamber, so that the forming mold does not cause a temperature change accompanying the transfer, and further, when the transfer is performed, the vibration is caused in the forming mold. When the molding material is misaligned, not only the formed optical element may have uneven thickness and shape, but also unevenness in the pressing load due to uneven thickness may result in deterioration of the surface precision of the optical functional surface, but according to Patent Document 1, In the case of the apparatus, the molding die can be smoothly moved to the molding die by the rotary table, and the molding die can be smoothly transferred. As described above, the device of Patent Document 1 has an extremely excellent function when manufacturing an optical element having a highly precise optical functional surface.
然而，經本發明者們重覆性認真檢討的結果，對於專利文獻1的裝置，發現其利用處理室內的加熱器對成形模具加熱時試件台也會一起加熱，但此時，基於成形模具和試件台的熱特性不同因此兩者之間就會產生熱交換，恐怕會因此而擾亂成形模具的溫度管理。接著，又得知就光學元件所要求的精度有愈來愈嚴格之趨勢的近年狀況而言，成形模具支撐用之試件台的熱性影響對高精度的成形會造成不良影響。 However, as a result of repeated and serious review by the inventors of the present invention, it has been found that the apparatus of Patent Document 1 is also heated together when the forming mold is heated by the heater in the processing chamber, but at this time, based on the forming mold and The thermal characteristics of the test piece are different, so heat exchange occurs between the two, which may disturb the temperature management of the forming mold. Then, it has been found that in recent years in which the accuracy required for optical components is becoming more and more strict, the thermal influence of the test piece support for forming a mold has an adverse effect on high-precision molding.
例如：數位相機等攝影機器或更換鏡片等所使用的光學元件，其光學要求性能極高。特別是，直徑比 較大的玻璃鏡片(例如ψ 20mm以上)為了利用精密壓模成形，必須精緻執行成形過程中之各處理作業的溫度管理，特別是成形素材收容用之成形模具的溫度管理，但若直接應用專利文獻1的裝置，則成形模具的溫度管理就需更為精緻，此時恐怕專利文獻1的裝置無法應對該要求。 For example, optical components used in photographic equipment such as digital cameras or lens replacements have extremely high optical performance. In particular, the diameter ratio Large glass lenses (for example, ψ20mm or more) In order to utilize precision press molding, it is necessary to exquisitely perform temperature management of each processing operation in the forming process, in particular, temperature management of forming dies for forming materials, but if the patent is directly applied In the apparatus of Document 1, the temperature management of the forming mold needs to be more delicate, and at this time, the apparatus of Patent Document 1 cannot cope with this requirement.
另，專利文獻2的成形機，由於其每個平台並未加以區隔，因此就無法避免來自於鄰接之平台的熱性影響，無法執行各成形模具之精緻的溫度管理。再加上，由於成形模具是從上下夾持著該成形模具的均熱板直接傳播有熱，因此當成形模具和均熱板之間有異物存在等造成兩者的接觸面積產生變化時，成形模具就會產生溫度變動，導致無法成型為所期望之品質的成形體。 Further, in the molding machine of Patent Document 2, since each of the platforms is not partitioned, the thermal influence from the adjacent platforms cannot be avoided, and the delicate temperature management of each molding die cannot be performed. In addition, since the forming mold directly transfers heat from the heat equalizing plate that holds the forming mold up and down, when there is a foreign matter between the forming mold and the heat equalizing plate, the contact area of the two changes, forming The mold undergoes a temperature change, resulting in a molded body that cannot be molded into a desired quality.
此外，專利文獻3的裝置，由於是以設置在成形機之固定部的3個突起支撐著成形模具，因此就能夠一義的決定成形模具的姿勢，並且能夠極力減少對成形模具之加熱、冷卻時的成形機之熱移動，但要將3個突起均等形成在固定部實在不容易。再加上，由於數十~數百kgf的壓製載重經常以相同3點承接著，因此壓製次數增加時恐怕突起就會變形，導致成形模具產生傾斜等，以致破壞到壓製開始當下之成形模具的姿勢。 Further, in the apparatus of Patent Document 3, since the molding die is supported by the three projections provided in the fixing portion of the molding machine, the posture of the molding die can be determined in a meaningful manner, and the heating and cooling of the molding die can be minimized. The heat of the forming machine moves, but it is not easy to form the three protrusions equally at the fixing portion. In addition, since the pressing load of several tens to several hundreds of kgf is often carried out at the same three points, the number of pressing increases may cause the protrusion to be deformed, causing the forming mold to be inclined, etc., so that the pressing of the forming mold of the present is started. posture.
另外，於專利文獻4的壓製成形裝置中，下模是承接由模具加熱裝置所誘導加熱之下模保持構件的熱形成為受到加熱。因此，在下模和下模保持構件之間配設有複數之滾動構件時，是能夠讓下模之水平方向的移動順 暢但對下模的加熱效率卻會變差。 Further, in the press forming apparatus of Patent Document 4, the lower mold is formed to receive heat heated by the mold holding member heated by the mold heating means to be heated. Therefore, when a plurality of rolling members are disposed between the lower mold and the lower mold holding member, the horizontal movement of the lower mold can be made smooth. Smooth but the heating efficiency of the lower mold will be worse.
本發明是有鑑於上述之問題點而為的發明，目的在於針對當要將收容有成形素材之成形模具以支撐台支撐的同時，對經由成形模具加熱後軟化的成形素材進行壓製成形製造光學元件之時，提供一種能夠抑制成形模具支撐用之支撐台的熱性影響以免波及到成形模具，能夠更加精緻管理成形模具的溫度藉此穩定量產高精度之光學元件的壓模成形裝置及光學元件之製造方法。 The present invention has been made in view of the above problems, and an object of the invention is to produce an optical component by press-forming a molding material which is softened by heating after forming a mold by supporting a molding die containing a molding material while supporting it. In the meantime, it is possible to provide a press molding apparatus and an optical element capable of suppressing the thermal influence of the support table for supporting the mold, so as not to affect the molding die, and to more accurately manage the temperature of the molding die, thereby stably producing a high-precision optical element. Production method.
本發明之壓模成形裝置，是一種要將收容有成形素材之成形模具以支撐台支撐的同時，對經由成形模具加熱後軟化的成形素材進行壓製成形的壓模成形裝置，其構成為是隔著屬於至少具備：形成有複數孔的板狀構件；及在複數孔內能夠滾動的複數滾動體之構成的單元，即，隔著可將複數滾動體之各個一部份從複數孔突出在板狀構件的表面地使複數滾動體收容在複數孔內的支架單元，將成形模具支撐在支撐台上，藉此使複數滾動體各個以點接觸狀支撐著成形模具的下面。 The press molding apparatus according to the present invention is a press molding apparatus for press molding a molding material which is heated by a molding die and is formed by supporting a molding die containing a molding material while supporting the molding die, and is configured to be separated. And a unit having at least a plate-like member formed with a plurality of holes; and a plurality of rolling elements capable of rolling in the plurality of holes, that is, each part of the plurality of rolling elements is protruded from the plurality of holes in the plate The surface of the member is such that the plurality of rolling elements are housed in the plurality of holes, and the forming mold is supported on the support table, whereby the plurality of rolling elements are supported in a point contact manner under the forming mold.
此外，本發明的光學元件之製造方法，是一種當要將收容有成形素材之成形模具以支撐台支撐的同時，對經由成形模具加熱後軟化的成形素材進行壓製成形製造光學元件之時，隔著屬於至少具備：形成有複數孔的板狀構件；及在複數孔內能夠滾動的複數滾動體之構成的 單元，即，隔著可將複數滾動體之各個一部份從複數孔突出在板狀構件的表面地使複數滾動體收容在複數孔內的支架單元，將成形模具支撐在支撐台上，藉此使複數滾動體各個以點接觸狀支撐著成形模具之下面的方法。 Further, the optical element manufacturing method of the present invention is a method of manufacturing an optical element by press-forming a forming material which is softened by a forming mold while supporting the forming mold containing the molding material while supporting the forming mold. At least: a plate-like member having a plurality of holes formed therein; and a plurality of rolling elements capable of rolling in the plurality of holes a unit, that is, a bracket unit that can block a plurality of rolling elements from a plurality of holes from a plurality of holes on a surface of the plate member to accommodate the plurality of rolling elements in the plurality of holes, and support the forming die on the support table, This allows each of the plurality of rolling elements to support the underside of the forming mold in a point contact manner.
根據本發明時，由於能夠抑制成形模具支撐用之支撐台的熱性影響以免波及到成形模具，能夠更加精緻管理成形模具的溫度，因此就能夠穩定量產高精度之光學元件。 According to the present invention, since the thermal influence of the support table for supporting the mold can be suppressed from being affected by the molding die, the temperature of the molding die can be more finely managed, so that it is possible to stably mass-produce the optical element with high precision.
3‧‧‧支撐台 3‧‧‧Support table
5‧‧‧支架單元 5‧‧‧ bracket unit
51‧‧‧承接板 51‧‧‧ receiving board
52‧‧‧板狀構件(保持板) 52‧‧‧ Plate-like members (holding plates)
52a‧‧‧孔(保持孔) 52a‧‧ holes (holding holes)
53‧‧‧滾動體 53‧‧‧ rolling elements
M‧‧‧成形模具 M‧‧‧forming mould
P‧‧‧成形素材 P‧‧‧forming material
P1‧‧‧取出暨***室 P1‧‧‧Remove and insert room
P2‧‧‧第一加熱室 P2‧‧‧First heating room
P3‧‧‧第二加熱室 P3‧‧‧Second heating room
P4‧‧‧第三加熱室 P4‧‧‧ third heating chamber
P5‧‧‧壓製室 P5‧‧‧Compression room
P6‧‧‧第一漸冷室 P6‧‧‧First Chilling Room
P7‧‧‧第二漸冷室 P7‧‧‧Second chiller
P8‧‧‧急冷室 P8‧‧‧Quench room
第1圖為表示本發明實施形態相關之壓模成形裝置的實施形態概略平面圖。 Fig. 1 is a schematic plan view showing an embodiment of a press molding apparatus according to an embodiment of the present invention.
第2圖為相當於第1圖之A-A剖面的裝置內部說明圖。 Fig. 2 is an internal explanatory view of the apparatus corresponding to the A-A cross section of Fig. 1.
第3圖為表示本發明實施形態相關之支架單元的一實施形態說明圖。 Fig. 3 is an explanatory view showing an embodiment of a holder unit according to an embodiment of the present invention.
第4圖為表示第2圖之局部放大的要部放大剖面圖。 Fig. 4 is an enlarged cross-sectional view of an essential part showing a partial enlarged view of Fig. 2;
第5圖為表示本發明實施形態相關之支架單元其他的例子說明圖。 Fig. 5 is a view showing an example of another example of the holder unit according to the embodiment of the present invention.
第6圖為表示針對實施例於五個支撐台每一個進行基準形狀所相對之周邊區域的形狀誤差之測定後的結果分佈 圖。 Fig. 6 is a view showing the distribution of results after measuring the shape error of the peripheral region with respect to the reference shape for each of the five support tables. Figure.
第7圖為表示針對實施例將基準形狀所相對之周邊區域的形狀誤差為橫軸，將頻率為縱軸後所獲得的矩形圖。 Fig. 7 is a histogram obtained by taking the shape error of the peripheral region with respect to the reference shape as the horizontal axis and the frequency as the vertical axis for the embodiment.
第8圖為表示針對比較例於五個支撐台每一個進行基準形狀所相對之周邊區域的形狀誤差之測定後的結果分佈圖。 Fig. 8 is a view showing a result distribution after measuring the shape error of the peripheral region with respect to the reference shape for each of the five support tables in the comparative example.
第9圖為表示針對比較例將基準形狀所相對之周邊區域的形狀誤差為橫軸，將頻率為縱軸後所獲得的矩形圖。 Fig. 9 is a histogram obtained by taking the shape error of the peripheral region with respect to the reference shape as the horizontal axis and the frequency as the vertical axis for the comparative example.
以下，參照圖面對本發明之最佳實施形態進行說明。 Hereinafter, the best mode for carrying out the invention will be described with reference to the drawings.
第1圖為表示本發明實施形態相關之壓模成形裝置(以下簡稱「成形裝置」)的實施形態概略平面圖，第2圖為相當於第1圖之A-A剖面的裝置內部說明圖。 Fig. 1 is a schematic plan view showing an embodiment of a press molding apparatus (hereinafter referred to as "molding apparatus") according to an embodiment of the present invention, and Fig. 2 is an internal explanatory view of the apparatus corresponding to the A-A cross section of Fig. 1.
本實施形態的成形裝置，是一種要將收容有玻璃預成型件等成形素材P之成形模具M以支撐台3支撐的同時，對經由成形模具M加熱後軟化的成形素材P進行壓製成形，藉此獲得已成形為所期望之形狀的光學元件等成形體之成形裝置。 In the molding apparatus of the present embodiment, the molding die M in which the molding material P such as a glass preform is accommodated is supported by the support table 3, and the molding material P softened by heating by the molding die M is press-molded. This obtains a molding apparatus for a molded body such as an optical element that has been formed into a desired shape.
本實施形態所使用的成形模具M，只要能夠將成形素材P壓製成形為所期望的形狀，則其具體性的構成並沒有特別限定。例如：成形模具M，也可由形成有彼 此相向之成形面的一對上模10及下模20和要限制上模10和下模20之水平方向的相互位置用的胴模30所構成。使用該構成之成形模具M時，就可在下模20和經由胴模30滑動引導成對下模20成相對性接近、離開的上模10之間對成形素材P進行壓製成形。 The molding die M used in the present embodiment is not particularly limited as long as it can press-form the molding material P into a desired shape. For example, the forming mold M can also be formed by The pair of upper molds 10 and lower molds 20 of the opposing molding faces and the die 30 for restricting the mutual position of the upper mold 10 and the lower mold 20 in the horizontal direction are constituted. When the molding die M having such a configuration is used, the molding material P can be press-formed between the lower mold 20 and the upper mold 10 which is slidably guided by the dies 30 to directly contact and separate the pair of lower molds 20.
此外，本實施形態的成形裝置，是構成為具有：分別要對成形模具M執行包括加熱、壓製、冷卻之各處理的複數處理室；及可使支撐有成形模具M的支撐台3移送至各處理室的移送機構，藉由一邊移送已經收容有成形素材P的成形模具M，一邊依順序施行加熱處理、壓製處理、冷卻處理等各處理，就可執行壓製成形作業。 Further, the molding apparatus of the present embodiment is configured to have a plurality of processing chambers for performing respective processes including heating, pressing, and cooling on the molding die M, and to transfer the support table 3 supporting the molding die M to each The transfer mechanism of the processing chamber can perform a press forming operation by sequentially performing a heat treatment, a pressing process, a cooling process, and the like while sequentially transferring the molding die M in which the molding material P has been stored.
於此，第1圖所示的成形裝置具備有艙室1。艙室1，是使用不銹鋼或其他具有耐熱性的金屬形成，例如：藉由形成為圓筒形之上下開口部密閉後的形狀，使其成為內部能夠保持成非氧化性氣體環境氣(氮等惰性氣體環境氣)的氣密構造。接著，於該艙室1內，設有沿著周方向排列配置成大致等間隔之取出暨***室P1及處理室P2~P8。 Here, the molding apparatus shown in Fig. 1 is provided with a cabin 1. The cabin 1 is formed of stainless steel or other heat-resistant metal. For example, it is formed into a cylindrical upper and lower opening and sealed to maintain a non-oxidizing atmosphere (nitrogen or the like). Gas-tight structure of gas atmosphere). Next, in the cabin 1, the take-out and insertion chamber P1 and the processing chambers P2 to P8 which are arranged at substantially equal intervals in the circumferential direction are provided.
於圖示例中，P1為取出暨***室。於該取出暨***室P1，是以不損及處理室P2~P8之設定環境的狀態，執行成形結束之成形模具M的取出作業及已收容有需要成形之成形素材P的成形模具M之***作業。 In the example of the figure, P1 is the take-out and insertion chamber. In the take-out and insertion chamber P1, the mold M is taken out and the molding die M in which the molded material P to be formed is accommodated is inserted in a state in which the setting conditions of the processing chambers P2 to P8 are not damaged. operation.
此外，P2為第一加熱室，P3為第二加熱室，P4為第三加熱室(或均熱室)。該等也可總稱為加熱 部，該加熱部是要對成形模具M施以加熱處理。於此的加熱處理，是使成形模具M及成形素材P加熱成適合壓製成形的溫度，例如執行加熱達到相當於玻璃黏度為106~1011dPa‧s的溫度。P5為壓製室。於該壓製室P5，是對經由加熱部之加熱處理達到適合壓製成形之溫度的成形模具M，施以要利用壓製機構施加壓製載重的壓製處理。 Further, P2 is the first heating chamber, P3 is the second heating chamber, and P4 is the third heating chamber (or soaking chamber). These may also be collectively referred to as a heating section for applying heat treatment to the forming mold M. The heat treatment here is to heat the molding die M and the molding material P to a temperature suitable for press molding, for example, to perform heating to a temperature corresponding to a glass viscosity of 10 6 to 10 11 dPa ‧ s. P5 is a press chamber. The press chamber P5 is a press mold M which is heated to a temperature suitable for press forming by heat treatment of the heating portion, and is subjected to a press treatment in which a press load is applied by a press mechanism.
此外，P6為第一漸冷室，P7為第二漸冷室，P8為急冷室。該等也可總稱為冷卻部，該冷卻部是要對施加有壓製載重後的成形模具M施以冷卻處理。於急冷室P8，又以事先設有利用冷卻氣體的急冷機構為佳，使成形模具M冷卻達到可讓成形素材P經壓製成形後成為所期望之形狀的成形體不礙於大氣開放的溫度，例如冷卻達到相當於玻璃黏度為1012dPa‧s的溫度以下。 Further, P6 is a first gradual cooling chamber, P7 is a second gradual cooling chamber, and P8 is a quenching chamber. These may also be collectively referred to as a cooling portion for applying a cooling treatment to the forming mold M to which the pressing load is applied. In the quenching chamber P8, the quenching mechanism using the cooling gas is preferably provided, and the molding die M is cooled to a temperature at which the molded body P can be formed into a desired shape after being formed into a desired shape. For example, the cooling reaches a temperature equivalent to a glass viscosity of 10 12 dPa ‧ s.
該等處理室P2~P8，為了要分別獨立控制溫度成適合各自處理的溫度，並且為了要將各處理室內的溫度保持成指定溫度，是由遮擋件S1~S6區隔著。 The processing chambers P2 to P8 are separated by the shutters S1 to S6 in order to independently control the temperature to suit the temperature of each processing, and to maintain the temperature in each processing chamber at a predetermined temperature.
另外，圖示例中，支撐著成形模具M藉此移送成形模具M的支撐台3，是安裝在第1圖中朝箭頭方向旋轉之旋轉驅動機構所連結之做為移送機構的旋轉台2。如此一來，從取出暨***室P1***在裝置內，形成為被支撐在支撐台3的成形模具M就會在收容有成形素材(或成形體)P的狀態下，依順序被移送至環境設定成常時非氧化性氣體的環境氣(氮等惰性氣體環境氣)下的處 理室P2~P8。 Further, in the illustrated example, the support table 3 that supports the molding die M by transferring the molding die M is a rotary table 2 that is connected as a transfer mechanism by a rotation drive mechanism that is rotated in the direction of the arrow in Fig. 1 . In this way, the molding die M that is formed to be supported by the support table 3 is inserted into the apparatus from the take-out and insertion chamber P1, and is transferred to the environment in the order in which the molding material (or molded body) P is accommodated. It is set as an ambient gas (inert gas such as nitrogen) that is always a non-oxidizing gas. Room P2~P8.
另，旋轉台2，是形成為直徑比艙室1之內徑還小的圓板狀，旋轉自如地安裝在艙室1且安裝成其旋轉中心與艙室1的中心一致。 Further, the turntable 2 is formed in a disk shape having a diameter smaller than the inner diameter of the cabin 1, and is rotatably attached to the cabin 1 and mounted so that its center of rotation coincides with the center of the cabin 1.
旋轉台2，於中央配備有具備分度機的控制機構(省略圖示)，藉由該旋轉台2每一定時間之旋轉及停止的重覆動作僅以指定之旋轉角度量間歇性旋轉，使支撐著成形模具M的支撐台3移動在鄰設的處理室間。接著，此時的一定時間，即，從利用旋轉台2的間歇性旋轉使支撐台3的移動開始至一旦停止後下一個移動開始為止的時間就是成形循環時間。 The turntable 2 is provided with a control mechanism (not shown) having an indexing machine at the center, and the repetitive motion of the rotation and stop of the turntable 2 is intermittently rotated only at a predetermined rotation angle amount. The support table 3 supporting the forming mold M moves between adjacent processing chambers. Next, the predetermined time at this time, that is, the time from the start of the movement of the support table 3 by the intermittent rotation of the turntable 2 to the start of the next movement after the stop is the molding cycle time.
另，本實施形態中，是以旋轉移送型的成形裝置的例子為圖示進行說明，但支撐台3移送用的移送機構，也可經由與以直線動作為主之已知的驅動機構連結後構成，其具體性的構成並無特別限定。此外，取出暨***室P1、處理室P2~P8的配置也不限於圖示的例子，該等可根據支撐台3移送用的移送機構之構成加以各種的變更。再加上，為了要配合成形素材P的組成或想獲得之光學元件等成形體的形狀，讓加熱、壓製、冷卻的各處理為最佳化，例如：也可將加熱室為四個，或壓製室為二個，或漸冷室為三個。為了提昇成形體的生產效率，也可並設相同數量的加熱室、壓製室、漸冷室，同時並行執行需要不同溫度條件、不同加壓條件之複數種類的壓製成形。 In the present embodiment, an example of a rotary transfer type molding apparatus will be described as an example. However, the transfer mechanism for transferring the support table 3 may be connected to a known drive mechanism mainly composed of a linear motion. The configuration of the specific structure is not particularly limited. Further, the arrangement of the take-out and insertion chamber P1 and the processing chambers P2 to P8 is not limited to the illustrated example, and these may be variously changed depending on the configuration of the transfer mechanism for transferring the support table 3. In addition, in order to match the shape of the molded material P or the shape of the molded body such as an optical element to be obtained, the respective processes of heating, pressing, and cooling are optimized. For example, the heating chamber may be four, or There are two pressing chambers or three gradual cooling chambers. In order to increase the production efficiency of the formed body, the same number of heating chambers, pressing chambers, and gradual cooling chambers may be provided in parallel, and a plurality of types of press forming requiring different temperature conditions and different pressing conditions may be performed in parallel.
圖示例中，第一加熱室P2、第二加熱室P3、 第三加熱室P4、壓製室P5、第一漸冷室P6及第二漸冷室P7之各處理室，是由殼體7包圍著其周圍，該殼體7；由未圖示之適當手段固定在艙室1。如第2圖所示，於殼體7的底壁7a，形成有要移送成形模具M時之支撐台3的移動通路即朝周方向延伸的窄縫7b。通過該窄縫7b，就能夠使支撐台3進入各處理室內。 In the illustrated example, the first heating chamber P2, the second heating chamber P3, The processing chambers of the third heating chamber P4, the pressing chamber P5, the first gradual cooling chamber P6, and the second chilling chamber P7 are surrounded by the casing 7, and the casing 7 is formed by a suitable means not shown. Fixed in compartment 1. As shown in Fig. 2, a slit 7b extending in the circumferential direction, which is a moving passage of the support table 3 when the molding die M is to be transferred, is formed in the bottom wall 7a of the casing 7. Through the slit 7b, the support table 3 can be made to enter each processing chamber.
於此，第2圖是代表性揭示第一加熱室P2的內部，但第二加熱室P3、第三加熱室P4、第一漸冷室P6、第二漸冷室P7，只是設定溫度不同，該等可形成為與第一加熱室P2相同的構造。此外，壓製室P5，其也是除了具備有壓製機構以外，其他可和各處理室為相同的構造。 Here, FIG. 2 is a view schematically showing the inside of the first heating chamber P2, but the second heating chamber P3, the third heating chamber P4, the first gradual cooling chamber P6, and the second gradual cooling chamber P7 are only set at different temperatures. These may be formed in the same configuration as the first heating chamber P2. Further, the press chamber P5 is also configured to have the same structure as each of the processing chambers except that the press mechanism is provided.
如第2圖所示，於包圍著處理室P2~P7之周圍的殼體7之內側側面，設有面臨著成形模具M之移送路藉此形成為彼此相向的加熱部8。 As shown in Fig. 2, the inner side surface of the casing 7 surrounding the processing chambers P2 to P7 is provided with a heating portion 8 which faces each other so as to face the transfer path of the molding die M.
處理室P2~P7的溫度，是經由控制加熱部8的輸出，使該等維持成各自的設定溫度，但例如於支撐台3的前端配置熱電偶，將其導線引導至旋轉台2的旋轉軸，藉此對支撐台3的前端部即成形模具M之底部的溫度進行測定，根據該測定結果，就能夠控制被設置在各處理室之加熱部8的輸出。 The temperature of the processing chambers P2 to P7 is controlled by the output of the heating unit 8 to maintain the respective set temperatures. However, for example, a thermocouple is disposed at the tip end of the support table 3, and the lead wire is guided to the rotating shaft of the turntable 2. Thereby, the temperature of the bottom part of the forming mold M, which is the front end portion of the support table 3, is measured, and based on the measurement result, the output of the heating unit 8 provided in each processing chamber can be controlled.
此外，加熱部8的具體性構成並無特別限定，例如可使用要產生輻射熱的電阻加熱器等。採用電阻加熱器做為加熱部8時，是以帶狀的電阻加熱發熱體沿著 殼體7的內側側面朝上下方向數次蛇行後的狀態，安裝在相向之側面且彼此成大致對稱為佳。此時，於殼體7內，是以事先配設有可覆蓋著殼體7內面且覆蓋成能夠反射加熱部8所產生的輻射熱使該輻射熱有效率施加在成形模具M的反射器9為佳。 Further, the specific configuration of the heating unit 8 is not particularly limited, and for example, a resistance heater or the like that generates radiant heat can be used. When the electric resistance heater is used as the heating portion 8, the heating element is heated along the strip-shaped electric resistance. The state in which the inner side surface of the casing 7 is meandered several times in the vertical direction is preferably attached to the opposite side faces and is substantially opposite to each other. At this time, in the casing 7, the reflector 9 which is disposed in advance to cover the inner surface of the casing 7 and is covered with the radiant heat which can be reflected by the heating portion 8 to efficiently apply the radiant heat to the forming mold M is good.
另外，於圖示例中，支撐著成形模具M，藉此對要施行加熱處理、壓製處理、冷卻處理之各處理室移送成形模具M的支撐台3，其具有朝垂直方向豎立之中空筒形狀的豎立部3b。接著，藉由將設置在該豎立部3b之下端側的基部3c嵌合在旋轉台2之外圍側形成的孔2a，使支撐台3安裝在旋轉台2。此外，於豎立部3b的上端側，設有要支撐成形模具M用的模具支撐部3a，於模具支撐部3a，如圖示，又以植設有可防止成形模具M之傾倒的複數銷6為佳。 Further, in the illustrated example, the forming mold M is supported, whereby the support table 3 for transferring the forming mold M to each of the processing chambers to be subjected to the heat treatment, the pressing treatment, and the cooling treatment has a hollow cylinder shape erected in the vertical direction. The upright portion 3b. Then, the support base 3 is attached to the turntable 2 by fitting the base portion 3c provided on the lower end side of the upright portion 3b to the hole 2a formed on the outer peripheral side of the turntable 2. Further, on the upper end side of the standing portion 3b, a mold supporting portion 3a for supporting the forming mold M is provided, and in the mold supporting portion 3a, as shown, a plurality of pins 6 for preventing the falling of the forming mold M are provided. It is better.
另，支撐台3，其也可針對一個基部3c設有複數的豎立部3b，使成形模具M支撐在各豎立部3b之上端側設置的模具支撐部3a，使複數的成形模具M能夠一次性移動在要施行加熱處理、壓製處理、冷卻處理之各處理室。如此一來，就能夠對各處理室同時移送複數個成形模具M，能夠在一個處理室內排列複數成形模具M於同時施行相同的處理，因此就能夠提昇成形體之生產效率。 Further, the support table 3 may be provided with a plurality of upright portions 3b for one base portion 3c, so that the molding die M supports the mold supporting portion 3a provided on the upper end side of each of the upright portions 3b, so that the plurality of forming molds M can be disposable. The movement is performed in each of the processing chambers to be subjected to heat treatment, pressing treatment, and cooling treatment. In this way, a plurality of molding dies M can be simultaneously transferred to the respective processing chambers, and the plurality of molding dies M can be arranged in one processing chamber while performing the same processing, so that the production efficiency of the molded body can be improved.
然而，上述所示的支撐台3，是以支撐有成形模具M的狀態移動在要施行加熱處理、壓製處理、冷卻處理的各處理室，與成形模具M一起加熱，當壓製載重 要施加在成形模具M時，該支撐台3是抵抗著該壓製載重且支撐著成形模具M。因此，支撐台3，通常是使用具有足以抗衡壓製載重之強度及耐熱性、韌性、加工性的不銹鋼等金屬材料形成。 However, the support table 3 shown above is moved in each of the processing chambers to be subjected to the heat treatment, the pressing treatment, and the cooling treatment in a state in which the molding die M is supported, and is heated together with the molding die M to suppress the load. To be applied to the forming mold M, the support table 3 is resistant to the pressing load and supports the forming mold M. Therefore, the support table 3 is usually formed of a metal material such as stainless steel having a strength sufficient to withstand the weight of the load and heat resistance, toughness, and workability.
另一方面，成形模具M，是需具備有指定的硬度、低熱膨脹性、緻密性，因此，其通常是使用碳化矽、氮化矽等陶瓷或鎢碳化物等超硬合金等代表性的陶瓷材形成，但一般而言，陶瓷材是比不銹鋼等金屬材料的熱傳導率還要高。 On the other hand, the molding die M needs to have a specified hardness, low thermal expansion property, and compactness. Therefore, it is usually a ceramic such as tantalum carbide or tantalum nitride or a superhard alloy such as tungsten carbide. The material is formed, but in general, the ceramic material has a higher thermal conductivity than a metal material such as stainless steel.
因此，成形模具M就會相對性比支撐台3的熱傳導率還高，隨著移動在要施行加熱處理、壓製處理、冷卻處理的各處理室，基於該熱環境的變化，以致成形模具M和支撐台3之間就會產生熱交換。 Therefore, the forming mold M is relatively higher in thermal conductivity than the support table 3, and moves in the respective processing chambers to be subjected to the heat treatment, the pressing treatment, and the cooling treatment, based on the change of the thermal environment, so that the forming mold M and Heat exchange occurs between the support tables 3.
例如：於執行加熱處理時，成形模具M是會比支撐台3還要容易溫度上昇，但當成形模具M的溫度比支撐台3的溫度還要高時，就會從溫度高的成形模具M往溫度低的支撐台3產生熱移動。此外，於執行冷卻處理時，成形模具M是會比支撐台3還要容易冷卻，但當成形模具M的溫度比支撐台3的溫度還要低時，就會從溫度高的支撐台3往溫度低的成形模具M產生熱移動。 For example, when the heat treatment is performed, the forming mold M is more likely to rise in temperature than the support table 3, but when the temperature of the forming mold M is higher than the temperature of the support table 3, the molding die M having a high temperature is obtained. The heat transfer is generated to the support table 3 having a low temperature. Further, when the cooling process is performed, the forming mold M is more easily cooled than the support table 3, but when the temperature of the forming mold M is lower than the temperature of the support table 3, it is from the support table 3 having a high temperature. The forming mold M having a low temperature generates heat transfer.
當成形模具M和支撐台3之間產生上述的熱交換時，在與支撐台3形成接觸的下模20側其和上模10側就會產生溫度差，以致成形模具M要加熱或冷卻成為其全體溫度均勻變化就有困難。特別是，當成形體要成形 為大口徑之玻璃鏡片時，成形模具M及支撐台3的模具支撐部3a也要形成為大徑，於是兩者的接觸面積就會增加，以致兩者接觸的面也容易產生局部性溫度分佈，因此成形模具M要加熱或冷卻成為其全體溫度均勻變化就更加困難。 When the heat exchange described above occurs between the forming mold M and the support table 3, a temperature difference occurs between the side of the lower mold 20 which is in contact with the support table 3 and the side of the upper mold 10, so that the forming mold M is heated or cooled. It is difficult to evenly change the overall temperature. In particular, when the shaped body is to be formed In the case of a large-diameter glass lens, the mold support portion 3a of the forming mold M and the support table 3 is also formed to have a large diameter, so that the contact area between the two increases, so that the contact surfaces of the two are also prone to local temperature distribution. Therefore, it is more difficult to form the mold M to be heated or cooled to have a uniform temperature change.
接著，當上述的溫度差產生在成形模具M時，恐怕壓製成形之玻璃鏡片的面精度(牛頓圈的扭曲、特性；日文為、)就會變差。 Then, when the temperature difference described above is generated in the forming mold M, the surface precision of the press-formed glass lens (the distortion and characteristics of the Newton's ring; Japanese is , ) will get worse.
此外，對於支撐著成形模具M且將其移送至各處理室的複數支撐台3，也必須考慮到其各個的厚度或形狀有稍微不同或者老化產生局部性熱劣化等所造成之其熱特性的不均。於是，當支撐台3有上述所示之熱特性的不均時，則其與成形模具M之間產生的熱交換也就會有所變化，恐怕會妨礙到玻璃鏡片等光學元件其形狀再現性的優良及高精度之量產。 Further, for the plurality of support tables 3 supporting the forming mold M and transferring them to the respective processing chambers, it is also necessary to take into consideration the thermal properties of the respective thicknesses or shapes which are slightly different or aged to cause local thermal deterioration or the like. Uneven. Therefore, when the support table 3 has the unevenness of the thermal characteristics as described above, the heat exchange between the support table 3 and the molding die M also changes, which may hinder the shape reproducibility of the optical element such as the glass lens. Excellent and high precision mass production.
再加上，當支撐台3和成形模具M以平滑的面彼此接觸時，於成形模具M經指定壓製載重的施加壓製成形之後，成形模具M就會貼附在支撐台3，恐怕要從支撐台3取下成形模具M就會比較困難。 Further, when the support table 3 and the forming mold M are in contact with each other with a smooth surface, after the forming mold M is subjected to press forming by the specified pressing load, the forming mold M is attached to the support table 3, and it is feared that it is supported from the support. It is more difficult for the table 3 to remove the forming mold M.
因此，於本實施形態，在要將成形模具M支撐在支撐台3的模具支撐部3a時，如第2圖等所示，是於模具支撐部3a上配置有支架單元5，形成為是隔著該支架單元5支撐著成形模具M。如此一來，就能夠於成形模具M的加熱、冷卻時，抑制成形模具M和支撐台3之 間的熱交換，使支撐台3的熱性影響不會波及到成形模具M，並且能夠避免支撐台3和成形模具M的貼附產生。 Therefore, in the present embodiment, when the mold M is supported by the mold support portion 3a of the support table 3, as shown in Fig. 2, the holder unit 5 is placed on the mold support portion 3a, and is formed as a partition. The holder unit 5 supports the forming mold M. In this way, it is possible to suppress the molding die M and the support table 3 during heating and cooling of the molding die M. The heat exchange between the two causes the thermal influence of the support table 3 to not affect the forming mold M, and the attachment of the support table 3 and the forming mold M can be avoided.
於此，第3圖為表示支架單元5其一實施形態的說明圖，第3(a)圖為支架單元5的平面圖，第3(b)圖為第3(a)圖之B-B剖面圖。此外，第4圖為表示第2圖中一點虛線所圈選部份的要部放大剖面圖。 Here, Fig. 3 is an explanatory view showing an embodiment of the holder unit 5. Fig. 3(a) is a plan view of the holder unit 5, and Fig. 3(b) is a cross-sectional view taken along line B-B of Fig. 3(a). In addition, Fig. 4 is an enlarged cross-sectional view of an essential part showing a portion circled by a dotted line in Fig. 2;
如該等圖面所示，本實施形態的支架單元5，具備：圓盤形狀的承接板51；形成有複數孔52a的板狀構件52；及於形成在板狀構件52之各孔52a內被保持成能夠滾動的滾動體53。承接板51和板狀構件52，是於形成在板狀構件52之各孔52a內收容有滾動體53的狀態下，例如利用壓入或焊接或螺合等形成為結合。此外，滾動體53，是以採用直徑0.5mm~10mm的圓球狀構件為佳。另，板狀構件52也可稱為保持板，孔52a也可稱為保持孔。 As shown in the drawings, the holder unit 5 of the present embodiment includes a disk-shaped receiving plate 51, a plate-shaped member 52 in which a plurality of holes 52a are formed, and a hole 52a formed in the plate-shaped member 52. The rolling elements 53 are held to be rotatable. The receiving plate 51 and the plate-like member 52 are formed in a state in which the rolling elements 53 are housed in the respective holes 52a of the plate-like member 52, and are formed by, for example, press fitting, welding, screwing, or the like. Further, the rolling element 53 is preferably a spherical member having a diameter of 0.5 mm to 10 mm. In addition, the plate member 52 may also be referred to as a retaining plate, and the hole 52a may also be referred to as a retaining hole.
形成在板狀構件52的孔52a，是形成為貫通在板狀構件52的厚度方向，但該孔52a為了可將滾動體53保持成能夠滾動，其內徑是形成為要比滾動體53的直徑還稍微大。接著，該孔52a其開口在板狀構件52之表面側的部份，是縮徑成為要比滾動體53的直徑還小〔參照第3(b)圖〕，藉此使其所收容之滾動體53的一部份從板狀構件52的表面突出並且不會脫離孔52a。 The hole 52a formed in the plate-like member 52 is formed to penetrate through the thickness direction of the plate-shaped member 52, but the hole 52a is formed to be rotatable in order to allow the rolling element 53 to be rolled, and the inner diameter thereof is formed to be larger than that of the rolling body 53. The diameter is also slightly larger. Then, the portion of the hole 52a which is opened on the surface side of the plate-like member 52 is reduced in diameter to be smaller than the diameter of the rolling element 53 (refer to Fig. 3(b)), whereby the accommodated rolling is performed. A portion of the body 53 protrudes from the surface of the plate member 52 and does not escape from the hole 52a.
此時，板狀構件52的厚度是形成為比滾動體53的直徑還稍微小，且未達到滾動體53的半徑，且以各部的形 狀及尺寸適當設定成足以讓滾動體53的一部份從板狀構件52之表面突出有0.1~2mm的高度為佳。 At this time, the thickness of the plate member 52 is formed to be slightly smaller than the diameter of the rolling elements 53, and does not reach the radius of the rolling elements 53, and is in the shape of each part. The shape and size are appropriately set so that a part of the rolling elements 53 protrudes from the surface of the plate member 52 by a height of 0.1 to 2 mm.
隔著上述所示的支架單元5支撐著成形模具M，實質上等於是由從板狀構件52之表面突出的滾動體53直接以點接觸支撐著成形模具M的下面，即，點接觸狀的支撐，因此就能夠減少其接觸面積。如此一來，就可抑制成形模具M和支撐台3之間的熱交換，避免支撐台3的熱性影響波及到成形模具M，並且能夠避免支撐台3和成形模具M的貼附產生。 The molding die M is supported via the holder unit 5 as described above, and is substantially equal to the lower surface of the molding die M supported by the rolling elements 53 projecting from the surface of the plate member 52 in a point contact manner, that is, point contact type Support, so it can reduce its contact area. As a result, heat exchange between the forming mold M and the support table 3 can be suppressed, the thermal influence of the support table 3 can be prevented from being applied to the forming mold M, and the attachment of the support table 3 and the forming mold M can be avoided.
另，滾動體53，如以上所述是以採用直徑0.5~10mm的圓球狀構件為佳，但若滾動體53的直徑太小，則無法充分確保滾動體53之一部份從板狀構件52之表面突出的高度，恐怕無法有效抑制成形模具M和支撐台3之間的熱交換。另一方面，滾動體53的直徑太大，則支架單元5無法充分具備有滾動體53的數量，以致當施加有壓製載重時對各個滾動體53的載重會太大恐怕因此造成滾動體53破損。 Further, as described above, the rolling element 53 is preferably a spherical member having a diameter of 0.5 to 10 mm. However, if the diameter of the rolling element 53 is too small, it is not possible to sufficiently ensure a part of the rolling element 53 from the plate member. The height at which the surface of 52 is protruded may not effectively suppress heat exchange between the forming mold M and the support table 3. On the other hand, if the diameter of the rolling elements 53 is too large, the bracket unit 5 cannot sufficiently have the number of the rolling elements 53, so that the load on the respective rolling elements 53 may be too large when the pressing load is applied, so that the rolling elements 53 may be damaged. .
此外，將滾動體53保持成能夠滾動，是能夠抑制滾動體53的偏向摩擦，使其耐用期間變長，使支架單元5能夠長期使用。再加上，被保持在板狀構件52的滾動體53，其只容許滾動在孔52a內，除此之外並不能自由活動，因此即使支撐台3之模具支撐部3a的支撐面對水平面成傾斜等，但滾動體53還是會滾動而不會偏向位於一定的位置。如此一來，支撐在支撐台3上之成形模 具M的姿勢就不會傾斜，能夠經常均等支撐著成形體。 Further, by keeping the rolling elements 53 rotatable, it is possible to suppress the deflection of the rolling elements 53 and to lengthen the durability period, so that the holder unit 5 can be used for a long period of time. Further, the rolling elements 53 held by the plate member 52 are allowed to roll only in the holes 52a, and are not freely movable, so that even if the support of the mold supporting portion 3a of the support table 3 faces the horizontal plane Tilting, etc., but the rolling elements 53 will still roll without being biased to a certain position. In this way, the forming die supported on the support table 3 The posture with M is not inclined, and the molded body can be uniformly supported at all times.
將滾動體53保持成能夠滾動的孔52a，如第3(a)圖所示，其是以不偏向位於局部性，且以大致等間距的排列形成在板狀構件52為佳。孔52a的排列，並不限於圖示的鋸齒狀排列，例如也可以是格子狀或同心狀或放射狀的排列。 The rolling elements 53 are held in a rollable hole 52a, and as shown in Fig. 3(a), it is preferable that the rolling elements 53 are localized in an unbiased manner and are formed in the plate-like members 52 at substantially equal intervals. The arrangement of the holes 52a is not limited to the zigzag arrangement shown in the drawings, and may be, for example, a lattice shape or a concentric or radial arrangement.
孔52a的數量，即，滾動體53的數量，需從所謂要抑制成形模具M和支撐台3之間的熱交換之觀點出發加以適當設定，假設，若孔52a的數量設定成極端多，於各孔52a保持有滾動體53時，則抵接成形模具M之滾動體53的數量就會變多，恐怕反而使成形模具M和支撐台3之間的熱交換容易產生。因此，孔52a的數量，即，滾動體53的數量，是以考慮到壓製處理時所要施加的壓製載重設定成指定數量為佳。 The number of the holes 52a, that is, the number of the rolling elements 53, needs to be appropriately set from the viewpoint of suppressing heat exchange between the forming mold M and the support table 3. It is assumed that if the number of the holes 52a is set to be extremely large, When the rolling elements 53 are held in the respective holes 52a, the number of the rolling elements 53 that abut against the molding die M increases, and conversely, heat exchange between the forming mold M and the support table 3 is likely to occur. Therefore, the number of the holes 52a, that is, the number of the rolling elements 53, is preferably set to a specified number in consideration of the pressing load to be applied at the time of the pressing process.
例如：壓製處理時要施加在成形模具M的最大載重為Pmax，所要使用之滾動體53的數量為N，施加在各滾動體53的平均載重為Pn時，滾動體53的數量N是以設定成可滿足下述之關係式(1)為佳。 For example, the maximum load to be applied to the forming mold M during the pressing process is Pmax, the number of rolling elements 53 to be used is N, and when the average load applied to each rolling element 53 is Pn, the number N of rolling elements 53 is set. It is preferable to satisfy the relationship (1) described below.
Pn=Pmax/N≧5〔kgf〕…(1) Pn=Pmax/N≧5[kgf]...(1)
以最大載重Pmax為300kgf時為例子，於該形態時，根據上述(1)式，滾動體53的數量N是以60以下為佳。 In the case where the maximum load Pmax is 300 kgf, in the case of the above formula (1), the number N of the rolling elements 53 is preferably 60 or less.
當Pmax/N的值未滿5kgf以致滾動體53的數量N變多時，則成形模具M和支撐台3之間的熱交換就容易產生，導致成形模具M之溫度管理難以精緻。另一方面，當Pmax/N的值超過20kgf時，對各個滾動體53的載重會太大以致滾動體53或承接板51會破損或變形，如此一來恐怕就無法獲得所期望的效果。因此，滾動體53之數量N，又以可使Pmax/N的值為20kgf以下設定成需滿足上述關係式(1)並且可滿足下述的關係式(2)為佳。 When the value of Pmax/N is less than 5 kgf so that the number N of the rolling elements 53 becomes large, heat exchange between the forming mold M and the support table 3 is liable to occur, and the temperature management of the forming mold M is difficult to be refined. On the other hand, when the value of Pmax/N exceeds 20 kgf, the load on each of the rolling elements 53 may be too large to cause damage or deformation of the rolling elements 53 or the receiving plates 51, so that the desired effect may not be obtained. Therefore, the number N of the rolling elements 53 is set such that the value of Pmax/N is 20 kgf or less to satisfy the above relational expression (1) and the following relational expression (2) can be satisfied.
Pn=Pmax/N≦20〔kgf〕…(2) Pn=Pmax/N≦20[kgf]...(2)
此外，如以上所述，滾動體53，是以採用直徑0.5~5mm的圓球狀構件為佳，但將該滾動體53保持成能夠滾動的孔52a要形成在板狀構件52時，是以各孔52a之面積(縮徑之開口部除外的部份面積)的合計為Sa，板狀構件52之表面的面積為S時可滿足下述關係式(3)為佳。 Further, as described above, the rolling element 53 is preferably a spherical member having a diameter of 0.5 to 5 mm. However, when the rolling element 53 is held so that the rolling hole 52a is formed in the plate member 52, The total area of the holes 52a (the area of the portion excluding the opening portion of the reduced diameter) is Sa, and when the area of the surface of the plate member 52 is S, the following relational expression (3) is preferably satisfied.
S≧Sa×2…(3) S≧Sa×2...(3)
以板狀構件52的半徑為20mm，其表面的面積S為400 π mm2時的例子為一例時，於該形態，根據上述(2)式，是以可使孔52a的合計面積Sa為200 π mm2 以下設定要形成在板狀構件52的孔52a的數量為佳。 In the case where the radius of the plate-shaped member 52 is 20 mm and the surface area S is 400 π mm 2 , the total area Sa of the holes 52 a is 200 according to the above formula (2). It is preferable to set the number of the holes 52a to be formed in the plate member 52 below π mm 2 .
若是以孔52a的合計面積Sa超過板狀構件52之表面的面積S之一半的數量形成孔52a時，則收容在孔52a且抵接成形模具M之滾動體53的數量就會變多，以致成形模具M和支撐台3之間的熱交換容易產生，導致成形模具M之管理溫度難以精緻。 When the hole 52a is formed in such a manner that the total area Sa of the holes 52a exceeds the area S of the surface S of the plate member 52, the number of the rolling elements 53 accommodated in the hole 52a and abuts against the forming mold M becomes large, so that the number of the rolling elements 53 abutting the forming mold M becomes large. The heat exchange between the forming mold M and the support table 3 is apt to occur, resulting in difficulty in the management temperature of the forming mold M.
此外，滾動體53，也可不用都收容在板狀構件52上形成的全數孔52a，其可根據需求任意隔孔配置(隔著指定間隔省略滾動體53)。例如：當考慮到每個支撐台3之熱特性的不均時，要配置在相對性熱影響較大之支撐台3的支架單元5，是可以隔孔配置滾動體53，藉此減少其數量。特別是在要壓製成形大口徑的鏡片(例如 30mm以上的鏡片)時，由於成形模具M也會形成為較大，因此一個成形模具M上就容易產生有溫度分佈，藉由對溫度高之區域的滾動體53進行隔孔配置，就能夠調整成形模具M的溫度分佈。另，滾動體53其隔孔配置時，為了避免滾動體53偏向位於一部份的區域，是以大致等間隔隔孔配置滾動體53為佳。 Further, the rolling elements 53 do not need to be housed in the total number of holes 52a formed in the plate-like member 52, and may be arranged in any of the holes as required (the rolling elements 53 are omitted at predetermined intervals). For example, when considering the unevenness of the thermal characteristics of each of the support tables 3, it is necessary to arrange the support units 5 of the support table 3 having a relatively large relative thermal influence, and it is possible to arrange the rolling elements 53 by the holes, thereby reducing the number thereof. . Especially in the case of pressing large diameter lenses (eg In the case of a lens of 30 mm or more, since the molding die M is also formed to be large, a temperature distribution is likely to occur in one molding die M, and it can be adjusted by arranging the rolling elements 53 in a region having a high temperature. The temperature distribution of the forming mold M. Further, in the case where the rolling elements 53 are arranged in the perforations, it is preferable to arrange the rolling elements 53 at substantially equal intervals in order to prevent the rolling elements 53 from being biased toward a part of the area.
另，支架單元5所具備之滾動體53的數量，當考慮到要能夠有效抑制成形模具M和支撐台3之間的熱交換及壓製處理時所要施加的壓製載重等，更具體地說，直徑0.5~5mm的滾動體53以30~80個為佳。 In addition, the number of the rolling elements 53 provided in the holder unit 5 is considered to be effective in suppressing the heat exchange and the pressing load applied between the forming die M and the support table 3, and more specifically, the diameter. The rolling body 53 of 0.5 to 5 mm is preferably 30 to 80.
上述所示之支架單元5形成用的承接板51和板狀構件52，是可使用例如鎢合金或碳化鎢或碳化鈦或 陶瓷合金等具有高硬度、高耐熱性的合金形成。特別是，承接板51，是以使用即使隔著滾動體53承接有數十~數百kgf的壓製載重也不會變形暨破損的高硬度材料為佳。 The receiving plate 51 and the plate member 52 for forming the bracket unit 5 shown above may be, for example, a tungsten alloy or tungsten carbide or titanium carbide or An alloy having high hardness and high heat resistance such as a ceramic alloy is formed. In particular, the receiving plate 51 is preferably a high-hardness material that does not deform or break even if a pressing load of several tens to several hundreds of kgf is received through the rolling elements 53.
此外，滾動體53，是可使用與承接板51相同即使承接有數十~數百kgf的壓製載重也不會變形暨破損的高硬度材料例如：氮化矽、碳化矽、鋯、氧化鋁等陶瓷或鎢合金或碳化鎢或碳化鈦或合金陶瓷等具有高硬度、高耐熱性的素材形成。 Further, the rolling element 53 can be made of a high-hardness material such as tantalum nitride, tantalum carbide, zirconium, alumina, or the like which is not deformed or damaged even when the pressing load of several tens to several hundreds of kgf is received as in the receiving plate 51. A material having high hardness and high heat resistance such as ceramic or tungsten alloy or tungsten carbide or titanium carbide or alloy ceramic.
另，第2圖及第3圖所示之支架單元5，由於是做為有別於支撐台3之另外的構件配置在支撐台3的模具支撐部3a上，因此當支架單元5有不佳狀況等產生時，只要更換新的支架單元5就能夠容易解決該不佳狀況等。 Further, since the holder unit 5 shown in FIGS. 2 and 3 is disposed on the mold supporting portion 3a of the support table 3 as another member different from the support table 3, when the holder unit 5 is poor When a situation or the like occurs, the defective condition or the like can be easily solved by replacing the new bracket unit 5.
其次，以具體性之實施例對本發明的實施形態進行更加詳細的說明。 Next, embodiments of the present invention will be described in more detail with reference to specific embodiments.
針對與第1圖所示例相同之既存的壓模成形裝置，將第3圖所示之支架單元5配置在支撐台3的模具支撐部3a上，於取出暨***室P1，執行了下述作業，即，成形結束後之成形模具M的取出作業，和，要將收容有要做為新成形之成形素材P的成形模具M搬入至成形裝置內 的***作業。成形模具M，是隔著支架單元5支撐在支撐台3的模具支撐部3a。接著，重覆性執行了隨著旋轉台2的旋轉，一邊將成形模具M依順序送往各處理室P2~P8，一邊使成形模具M經由加熱、壓製、冷卻之各處理的壓製成形作業。利用該壓製成形作業，連續成形有壓製徑33mm、中心厚度1.3mm、周邊厚度8mm的凹彎月鏡片。 With respect to the existing press molding apparatus similar to the example shown in Fig. 1, the holder unit 5 shown in Fig. 3 is placed on the mold supporting portion 3a of the support table 3, and the following operations are performed in the take-out and insertion chamber P1. That is, the removal operation of the molding die M after the completion of the molding, and the molding die M in which the molding material P to be newly formed is carried into the molding apparatus Insert job. The molding die M is a mold supporting portion 3a that is supported by the support table 3 via the holder unit 5. Then, the press forming operation of the molding die M by the respective processes of heating, pressing, and cooling while the molding die M is sequentially sent to the respective processing chambers P2 to P8 in accordance with the rotation of the turntable 2 is performed. By this press forming operation, a concave meniscus lens having a pressed diameter of 33 mm, a center thickness of 1.3 mm, and a peripheral thickness of 8 mm was continuously formed.
另，成形素材P，是使用屬於硼酸鑭類光學玻璃的M-TAF101(HOYA股份有限公司製)。 In the case of the molded material P, M-TAF101 (manufactured by HOYA Co., Ltd.) which is an optical glass of bismuth borate is used.
此外，支架單元5，是使用外徑為50mm，承接板51和板狀構件52結合後之厚度為4mm，孔52a的數量為40個，配置在各孔52a之超硬製滾動體53的直徑為2mm之支架單元。 Further, the bracket unit 5 has an outer diameter of 50 mm, a thickness of the joint plate 51 and the plate-like member 52 combined to be 4 mm, the number of the holes 52a is 40, and the diameter of the super-hard rolling element 53 disposed in each of the holes 52a. It is a 2mm bracket unit.
對於成形後之玻璃鏡片，針對五個支撐台3每個測定了該玻璃鏡片之基準形狀所相對之周邊區域的形狀誤差(以下稱「周邊F’」)，其測定結果揭示在第6圖。此外，以周邊F’為橫軸，其頻率為縱軸之矩形圖揭示在第7圖。 With respect to the glass lens after molding, the shape error of the peripheral region with respect to the reference shape of the glass lens (hereinafter referred to as "peripheral F'") was measured for each of the five support tables 3, and the measurement results are shown in Fig. 6. Further, a rectangular diagram in which the peripheral F' is the horizontal axis and whose frequency is the vertical axis is shown in Fig. 7.
除了不隔著支架單元5，而是將成形模具M直接支撐在支撐台3的模具支撐部3a上以外，其他都與實施例相同，藉此同樣連續形成有玻璃鏡片。 The glass lens is continuously formed in the same manner as in the embodiment except that the molding die M is directly supported on the mold supporting portion 3a of the support table 3 without interposing the holder unit 5.
，對於成形後之玻璃鏡片，針對五個支撐台3每個測定 了周邊F’，其測定結果揭示在第8圖。此外，以周邊F’為橫軸，其頻率為縱軸之矩形圖揭示在第9圖。 For the formed glass lens, each of the five support tables 3 is determined The surrounding F' is shown in Fig. 8. Further, a rectangular diagram in which the peripheral F' is the horizontal axis and whose frequency is the vertical axis is shown in Fig. 9.
從上述實施例和上述比較例的比對得知，將成形模具M隔著支架單元5支撐在支撐台3的模具支撐部3a，是可使複數支撐台3間所產生的形狀誤差獲得改善，能夠降低形狀的不均。此外，比較例的玻璃鏡片並不符合規格範圍，相對於此實施例中成形後之全部的玻璃鏡片都在規格範圍內。 From the comparison between the above embodiment and the above comparative example, it is known that the shape of the shape of the plurality of support tables 3 can be improved by supporting the molding die M on the mold supporting portion 3a of the support table 3 via the holder unit 5. Can reduce the unevenness of the shape. Further, the glass lens of the comparative example did not conform to the specification range, and all of the glass lenses after the molding in this example were within the specification range.
以上，針對本發明是以最佳實施形態進行了說明，但本發明並不僅限於上述的實施形態，於本發明的範圍理所當然可加以各式各樣的變更實施。 The present invention has been described with respect to the preferred embodiments. However, the present invention is not limited to the above-described embodiments, and various modifications can be made without departing from the scope of the invention.
例如：上述實施形態中，支架單元5，是以具備有下述構成為例子，即，其具備：承接板51和具有複數孔52a的板狀構件52；及可滾動地被保持在孔52a內的滾動體53，但如第5圖所示，支架單元5的構成也可省略承接板51。於該形態時，是可使設置在支撐台3的模具支撐部3a具備有承接板51的功能。 For example, in the above-described embodiment, the holder unit 5 is provided with a configuration including a receiving plate 51 and a plate-like member 52 having a plurality of holes 52a; and is rotatably held in the hole 52a. The rolling elements 53 are provided, but as shown in Fig. 5, the receiving unit 51 may be omitted from the configuration of the bracket unit 5. In this form, the mold supporting portion 3a provided on the support table 3 can be provided with the receiving plate 51.
另，第5圖為表示支架單元5其他例子的說明圖，其為對應第4圖的要部放大剖面圖。針對與第4圖所示例相同的構成部份是標示同一圖號，以省略其詳細說明。 In addition, Fig. 5 is an explanatory view showing another example of the holder unit 5, which is an enlarged cross-sectional view of an essential part corresponding to Fig. 4. The same components as those in the example shown in Fig. 4 are denoted by the same reference numerals to omit detailed description thereof.
此外，上述實施形態中，是以具備有要執行包括加熱、壓製、冷卻之各處理的複數處理室及要將支撐有成形模具M的支撐台3依順序移送往該等處理室的移送機構之壓模成形裝置為例子，但並不限於此。本發明， 是可應用在要將收容有成形素材P之成形模具M以支撐台3支撐的同時，對經由成形模具M加熱後軟化的成形素材P進行壓製成形的壓模成形裝置及光學元件之製造方法。 Further, in the above embodiment, the plurality of processing chambers for performing the respective processes including heating, pressing, and cooling, and the transfer mechanism for transferring the support table 3 supporting the molding die M to the processing chambers in order are sequentially provided. The press molding apparatus is an example, but is not limited thereto. this invention, The present invention is a press molding apparatus and an optical element manufacturing method which are applied to a molding material P which is heated by the molding die M and which is molded by the molding die M while the molding die M containing the molding material P is supported by the support table 3.
此外，於上述實施例中，是以要連續形成有凹彎月鏡片為例子，但本發明並不限於應用在凹彎月鏡片的壓製成形，還可應用雙凸鏡、凸彎月鏡片、雙凹鏡片等各種形狀之光學元件的壓製成形。特別是在要製造出鏡片直徑(壓製徑)為30mm以上之光學元件時，若應用本發明就可抑制成形面內的溫度分佈，能夠使成形模具M的溫度管理更為精緻，因此就能夠穩定量產高精度的光學元件。 In addition, in the above embodiment, the concave meniscus lens is continuously formed as an example, but the present invention is not limited to the press forming of the concave meniscus lens, and the double convex mirror, the convex meniscus lens, and the double may be applied. Press forming of optical elements of various shapes such as concave lenses. In particular, when an optical element having a lens diameter (compression diameter) of 30 mm or more is to be produced, the temperature distribution in the molding surface can be suppressed by applying the present invention, and the temperature management of the molding die M can be more refined, so that it can be stabilized. Mass production of high precision optical components.
於最後，使用圖面等對本實施形態進行總括性說明。 Finally, the present embodiment will be described in a general manner using a drawing or the like.
本實施形態的壓模成形裝置，其是一種要將收容有成形素材P之成形模具M以支撐台3支撐的同時，對經由成形模具M加熱後軟化的成形素材P進行壓製成形的壓模成形裝置，其特徵為，是隔著屬於至少具備：形成有複數孔52a的板狀構件52；及在複數孔52a內能夠滾動的複數滾動體53之構成的單元，即，隔著可將複數滾動體53之各個一部份從複數孔52a突出在板狀構件52的表面地使複數滾動體53收容在複數孔52a內的支架單元5，將成形模具M支撐在支撐台3上，藉此使複數滾動體53各個以點接觸狀支撐著成形模具M的下面。 In the press molding apparatus of the present embodiment, the molding die M in which the molding material P is accommodated is supported by the support table 3, and the molding material P softened by heating by the molding die M is press-formed. The apparatus is characterized in that it is a unit that includes at least a plate-shaped member 52 in which a plurality of holes 52a are formed, and a plurality of rolling elements 53 that can roll in the plurality of holes 52a, that is, a plurality of rolling elements can be separated Each of the bodies 53 protrudes from the plurality of holes 52a on the surface of the plate member 52, and the plurality of rolling elements 53 are housed in the holder unit 5 in the plurality of holes 52a, and the forming die M is supported on the support table 3, thereby The plurality of rolling elements 53 each support the lower surface of the forming mold M in a point contact manner.
本實施形態的壓模成形裝置，是以支架單元5具備有要和板狀構件52結合的承接板51，且在孔52a內收容有滾動體53的狀態下使板狀構件52和承接板51形成結合為佳。 In the press molding apparatus of the present embodiment, the holder unit 5 is provided with the receiving plate 51 to be coupled to the plate member 52, and the plate member 52 and the receiving plate 51 are placed in a state in which the rolling elements 53 are housed in the holes 52a. It is better to form a bond.
本實施形態的壓模成形裝置，其是以具備有分別要對成形模具M執行包括加熱、壓製、冷卻之各處理的複數處理室(P2~P8)及要將支撐有成形模具M的支撐台3依順序移送往各處理室的移送機構(旋轉台2)為佳。 The press molding apparatus according to the present embodiment is provided with a plurality of processing chambers (P2 to P8) for performing respective processes including heating, pressing, and cooling on the molding die M, and a support table to which the molding die M is to be supported. 3 It is preferable to transfer the transfer mechanism (rotary table 2) to each processing chamber in order.
此外，本實施形態的光學元件之製造方法，是構成為當要將收容有成形素材P之成形模具M以支撐台3支撐的同時，對經由成形模具M加熱後軟化的成形素材P進行壓製成形藉此製造光學元件之時，隔著屬於至少具備：形成有複數孔52a的板狀構件52；及在複數孔52a內能夠滾動的複數滾動體53之構成的單元，即，隔著可將複數滾動體53之各個一部份從複數孔52a突出在板狀構件52的表面地使複數滾動體53收容在複數孔52a內的支架單元5，將成形模具M支撐在支撐台3上，藉此使複數滾動體53各個以點接觸狀支撐著成形模具M的下面。 Further, in the method of manufacturing the optical element of the present embodiment, the molding material M that is heated by the molding die M is pressed and formed while the molding die M containing the molding material P is supported by the support table 3. When the optical element is manufactured, the member having at least the plate-shaped member 52 in which the plurality of holes 52a are formed and the plurality of rolling elements 53 that can roll in the plurality of holes 52a are interposed, that is, the plural can be interposed Each of the rolling elements 53 protrudes from the plurality of holes 52a on the surface of the plate member 52, and the plurality of rolling elements 53 are housed in the holder unit 5 in the plurality of holes 52a, thereby supporting the forming die M on the support table 3, whereby Each of the plurality of rolling elements 53 supports the lower surface of the forming mold M in a point contact manner.
光學元件之製造方法，是以下述構成的光學元件之製造方法為佳，即，支架單元5具備有要和板狀構件52結合的承接板51，且在複數孔52a內收容有滾動體53的狀態下使板狀構件52和承接板51形成結合。 The optical element manufacturing method is preferably a method of manufacturing an optical element having a receiving unit 51 that is to be coupled to the plate member 52 and that accommodates the rolling elements 53 in the plurality of holes 52a. The plate member 52 and the receiving plate 51 are combined in a state.
再加上，本實施形態的光學元件之製造方法，若構成為對要收容在支架單元5的複數滾動體53其一部份進行隔孔配置時，藉此還能夠降低並且調整成形模具M的溫度分佈。 Further, in the method of manufacturing the optical element of the present embodiment, when a part of the plurality of rolling elements 53 to be housed in the holder unit 5 is arranged in a perforation, the molding die M can be reduced and adjusted. Temperature Distribution.
Claims (5)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2012048417A JP5883317B2 (en) | 2012-03-05 | 2012-03-05 | Mold press molding apparatus and optical element manufacturing method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| TW201347947A TW201347947A (en) | 2013-12-01 |
| TWI619595B true TWI619595B (en) | 2018-04-01 |
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| TW102107640A TWI619595B (en) | 2012-03-05 | 2013-03-05 | Compression molding device and method of manufacturing optical component |
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| JP (1) | JP5883317B2 (en) |
| CN (1) | CN104144892A (en) |
| TW (1) | TWI619595B (en) |
| WO (1) | WO2013133190A1 (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JP6147571B2 (en) * | 2013-05-29 | 2017-06-14 | Hoya株式会社 | Glass molded body manufacturing apparatus and glass molded body manufacturing method |
| JP2015189623A (en) * | 2014-03-28 | 2015-11-02 | Hoya株式会社 | Glass molding manufacturing device and glass molding manufacturing method |
| CN109534660B (en) * | 2019-01-10 | 2023-09-08 | 亚琛科技(深圳)有限公司 | Heating and pressing shaft structure for glass molding press |
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|---|---|---|---|---|
| JPH05286728A (en) * | 1992-04-03 | 1993-11-02 | Olympus Optical Co Ltd | Production of glass lens |
| JP2003048728A (en) * | 2001-08-03 | 2003-02-21 | Konica Corp | Press forming device and method of press forming |
| JP2006219316A (en) * | 2005-02-08 | 2006-08-24 | Olympus Corp | Method and apparatus for manufacturing optical element |
| TWI287501B (en) * | 2005-10-25 | 2007-10-01 | Prodisc Technology Inc | Buffering assembly |
| JP2007302484A (en) * | 2006-05-08 | 2007-11-22 | Ricoh Opt Ind Co Ltd | Molding method and molding die |
| CN101528616A (en) * | 2006-10-31 | 2009-09-09 | Hoya株式会社 | Mold press forming die and molded article manufacturing method |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100839731B1 (en) * | 2005-01-19 | 2008-06-19 | 호야 가부시키가이샤 | Mold press molding mold and method for producing optical element |
| JP2007106058A (en) * | 2005-10-17 | 2007-04-26 | Fujifilm Corp | Molding die |
| CN2868733Y (en) * | 2005-11-11 | 2007-02-14 | 宁波富达电器有限公司 | Rolling-type universal caster |
-
2012
- 2012-03-05 JP JP2012048417A patent/JP5883317B2/en active Active
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2013
- 2013-03-04 WO PCT/JP2013/055780 patent/WO2013133190A1/en active Application Filing
- 2013-03-04 CN CN201380012535.4A patent/CN104144892A/en active Pending
- 2013-03-05 TW TW102107640A patent/TWI619595B/en not_active IP Right Cessation
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05286728A (en) * | 1992-04-03 | 1993-11-02 | Olympus Optical Co Ltd | Production of glass lens |
| JP2003048728A (en) * | 2001-08-03 | 2003-02-21 | Konica Corp | Press forming device and method of press forming |
| JP2006219316A (en) * | 2005-02-08 | 2006-08-24 | Olympus Corp | Method and apparatus for manufacturing optical element |
| TWI287501B (en) * | 2005-10-25 | 2007-10-01 | Prodisc Technology Inc | Buffering assembly |
| JP2007302484A (en) * | 2006-05-08 | 2007-11-22 | Ricoh Opt Ind Co Ltd | Molding method and molding die |
| CN101528616A (en) * | 2006-10-31 | 2009-09-09 | Hoya株式会社 | Mold press forming die and molded article manufacturing method |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2013133190A1 (en) | 2013-09-12 |
| TW201347947A (en) | 2013-12-01 |
| JP2013184829A (en) | 2013-09-19 |
| CN104144892A (en) | 2014-11-12 |
| JP5883317B2 (en) | 2016-03-15 |
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