WO2020013083A1 - Mold disassembling/assembling device, and molding device - Google Patents

Mold disassembling/assembling device, and molding device Download PDF

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Publication number
WO2020013083A1
WO2020013083A1 PCT/JP2019/026738 JP2019026738W WO2020013083A1 WO 2020013083 A1 WO2020013083 A1 WO 2020013083A1 JP 2019026738 W JP2019026738 W JP 2019026738W WO 2020013083 A1 WO2020013083 A1 WO 2020013083A1
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mold
die
molding
slide member
hole
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PCT/JP2019/026738
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French (fr)
Japanese (ja)
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藤本　忠幸
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Hoya株式会社
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Priority to CN201980044243.6A priority Critical patent/CN112351957B/en
Publication of WO2020013083A1 publication Critical patent/WO2020013083A1/en

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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
    • 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
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B3/00—Simple or compound lenses
    • 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

Definitions

  • the present invention has been made in view of the above problems, and provides a mold disassembling and assembling apparatus and a molding apparatus that can surely disassemble and assemble a mold in a high temperature state and contribute to improvement in productivity.
  • the purpose is to:
  • the present invention relates to a disassembling and assembling apparatus for disassembling and assembling a molding die configured of a body die, an upper die, and a lower die, and press-molding a glass optical element by bringing the upper die and the lower die close to each other.
  • the body mold has a mold guide hole that penetrates in the vertical direction.
  • the upper die has a smaller diameter than the outer diameter of the trunk die, is inserted into the die guide hole from above, and is restricted from moving downward relative to the trunk die at a predetermined insertion position.
  • the lower die has a diameter smaller than the outer diameter of the trunk die, is inserted into the die guide hole from below, and is restricted from moving upward relative to the trunk die at a predetermined insertion position.
  • the lower slide member When the lower die is detached downward from the mold guide hole of the trunk die, the lower slide member is pulled downward while sucking the lower die into the support part, by allowing the lower end surface of the lower die to be sucked and held by the support portion of the lower slide member. You may move it. Thereby, even if the sliding resistance of the lower mold with respect to the body mold is large, the lower mold can be reliably detached downward.
  • Radial through-holes such as the upper and lower holes are easy to form without complicating the structure of the cylindrical outer sleeve, and are efficient without impairing the heat resistance of the disassembly and assembly equipment.
  • An object can be inserted into and removed from the outer sleeve.
  • Molding device 10 Disassembly / assembly device 11: Supply unit 12: First heating unit 13: Second heating unit 14: Press unit 15: Slow cooling unit 16: Extraction unit 17: Mold 18: Chamber 19: Transport table 20 : Body mold 21: mold guide hole 30: upper mold 31: shaft part 32: large diameter part 33: molding surface 40: lower mold 41: shaft part 42: large diameter part 43: molding surface 50: outer sleeve 51: insertion space 52: large-diameter hole 53: small-diameter hole 54: regulating surface 55: upper insertion / removal hole 56: extrusion holes 57, 58: lower insertion / removal hole 60: upper slide member 61: lower concave portion 62: pressing portion 63: suction Recess 64: Suction passage 65: Suction source 70: Lower slide member 71: Suction recess 72: Lower mold support (support) 73: suction passage 74: suction source 75: positioning flange (positioning portion) 80: insertion operation member 81: take-out

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)

Abstract

The purpose of the present invention is to provide a mold disassembling/assembling device and a molding device which can reliably perform disassembling and assembling of a mold in a high temperature state and which contribute to an improvement in productivity. The present invention is a device for performing disassembling and assembling of a mold having a drum mold and an upper mold and a lower mold of a smaller diameter than the drum mold, the device comprising an outer sleeve, an upper slide member, and a lower slide member, each of which is made of metal or ceramic. The outer sleeve has an upper side large-diameter hole and a lower side small-diameter hole in a regulating surface, and the upper slide member is slidably inserted into the large-diameter hole from above, and the lower slide member is slidably inserted into the small-diameter hole from below. While a mold is disposed inside the large-diameter hole, the upper slide member presses, with a pressing part thereof, an upper end surface of the drum mold and moves downward until a lower end surface of the drum mold makes contact with the regulating surface, and then the lower slide member is moved downward together with the lower mold, and causes the lower mold to be detached downward from the drum mold.

Description

成形型の分解組立装置及び成形装置Mold disassembly device and molding device
　本発明は、プレス成形用の成形型の分解組立装置、及び成形型の分解組立装置を有する成形装置に関する。 The present invention relates to a mold disassembly apparatus for press molding and a molding apparatus having a mold disassembly apparatus.
　プレス成形用の成形型として、胴型に挿入される上型と下型を備え、所定以上の温度に加熱した状態で上型と下型を接近させてガラス材料をプレスして、ガラスレンズ等のガラス製品を形成するものが知られている。プレス加工後に上型と下型を分離させて成形後のガラス製品を取り出し、次に加工するガラス材料を上型と下型の間に設置して再びプレス加工を行う、というサイクルで順次製造を実行する。 The upper mold and the lower mold are inserted into the body mold as a mold for press molding, and the glass material is pressed by bringing the upper mold and the lower mold close to each other while being heated to a predetermined temperature or more, and pressing the glass material. Are known to form the glass products. After pressing, the upper and lower molds are separated, the molded glass product is taken out, the glass material to be processed is placed between the upper and lower molds, and press working is performed again. Execute.
　ガラスレンズのように両面に高度な精度が要求される光学素子を成形する成形型は、成形精度を確保するために、胴型に対する上型及び下型のクリアランスが極めて小さく設定されている。そのため、成形完了後の上型と下型の分解や、次に成形を行う際の胴型への上型や下型の組み付けは、互いの中心軸を精密に位置合わせした上で、ブレや傾きを生じさせずに軸方向へ移動させる必要がある。こうした成形型の分解や組み立ての作業を、上型や下型を機械的に保持しながら移動させる分解組立装置で行わせるには、非常に高度な動作精度が要求され、高価な装置を要することになる。そのため、ガラス製光学素子用の成形型の分解や組み立ては手作業で行う場合が多かった。特許文献１では、こうした成形型の分解や組み立てを安価且つ容易に機械化する技術が提案されている。 (4) In a molding die for molding an optical element requiring high precision on both surfaces such as a glass lens, the clearance between the upper die and the lower die relative to the body die is set to be extremely small in order to secure the molding accuracy. Therefore, when disassembling the upper and lower dies after molding is completed, and when assembling the upper and lower dies to the body mold at the time of the next molding, the center axes of each other must be precisely aligned, It is necessary to move in the axial direction without causing tilt. In order to disassemble and assemble such a mold using a disassembly / assembling device that moves the upper and lower dies while holding them mechanically, extremely high operation accuracy is required and expensive equipment is required. become. For this reason, the disassembly and assembly of the mold for the glass optical element has often been performed manually. Patent Literature 1 proposes a technique for inexpensively and easily mechanizing the disassembly and assembly of such a mold.
特許第２６６５０１８号公報Japanese Patent No. 2665018
　ガラス製光学素子の成形を行う際には、ガラス材料をガラス転移点以上の温度まで加熱して軟化させる。そして成形完了後にガラス製光学素子及び成形型を冷却してから、上型と下型を分離させてガラス製光学素子を取り出す。製造効率を向上させるために、冷却に要する時間や手間を節約したいという要求がある。しかし、手作業で成形型の分解を行う場合は、作業者に危険が及ばない常温域まで冷却する必要があり、冷却時間の低減には限界があった。また、特許文献１のように機械化された分解組立装置であっても、高温には耐えられないエアシリンダやピストンロッドにより成形型を保持する構造であるため、ガラス転移点に近い高温状態での成形型の分解には対応しておらず、上記要求を満たすことが難しかった。 成形 When molding a glass optical element, the glass material is heated to a temperature equal to or higher than the glass transition point to be softened. After the molding is completed, the glass optical element and the mold are cooled, and then the upper mold and the lower mold are separated to take out the glass optical element. There is a demand to reduce the time and labor required for cooling in order to improve manufacturing efficiency. However, when the mold is manually disassembled, it is necessary to cool the mold to a normal temperature range where there is no danger to the operator, and there is a limit to the reduction of the cooling time. Further, even in a mechanized disassembly and assembling apparatus as disclosed in Patent Document 1, the structure is such that the mold is held by an air cylinder or a piston rod that cannot withstand high temperatures. It did not correspond to the disassembly of the mold, and it was difficult to satisfy the above requirements.
　また、成形型の成形面上には、成形後のガラス製光学素子の融着を防いで良好に離型させるためのコーティング層（離型膜）が設けられる場合が多い。成形型の周囲に急激な温度変化があったり、不活性ガス雰囲気での成形を行った後に酸素濃度の高い外気にさらされたりすると、コーティング層がダメージを受けやすく、耐久性の向上が望まれていた。 コ ー テ ィ ン グ Furthermore, a coating layer (release film) is often provided on the molding surface of the mold to prevent fusion of the glass optical element after molding and to satisfactorily release the mold. If there is a sudden temperature change around the mold, or if the mold is exposed to high oxygen concentration outside air after molding in an inert gas atmosphere, the coating layer will be easily damaged and improved durability is desired. I was
　本発明はかかる問題点に鑑みてなされたものであり、高温状態で成形型の分解及び組み立てを確実に行うことができ、生産性向上に寄与する成形型の分解組立装置及び成形装置を提供することを目的とする。 The present invention has been made in view of the above problems, and provides a mold disassembling and assembling apparatus and a molding apparatus that can surely disassemble and assemble a mold in a high temperature state and contribute to improvement in productivity. The purpose is to:
　本発明は、胴型と上型と下型で構成され、上型と下型を接近させてガラス製光学素子をプレス成形する成形型の分解及び組み立てを行う分解組立装置に関するものである。胴型は、上下方向に貫通する型ガイド孔を有する。上型は、胴型の外径よりも小径であり、上方から型ガイド孔に挿入されて、所定の挿入位置で胴型に対する下方への移動を規制される。下型は、胴型の外径よりも小径であり、下方から型ガイド孔に挿入されて、所定の挿入位置で胴型に対する上方への移動を規制される。分解組立装置は、それぞれが金属又はセラミックスで形成されるアウタスリーブと上スライド部材と下スライド部材を備える。アウタスリーブは筒状であり、胴型を挿入可能な内径の大径孔部と、大径孔部の下方に位置して下型を挿入可能で胴型を挿入不能な内径の小径孔部と、大径孔部及び小径孔部の間に形成されて胴型の下端面に対向する規制面とを有する。上スライド部材は、上方から大径孔部に摺動可能に挿入され、胴型の上端面に対向する押圧部を有する。下スライド部材は、下方から小径孔部に摺動可能に挿入され、下型の下端面を支持する支持部を有する。大径孔部内に成形型を配置した状態で、上スライド部材の押圧部により胴型の上端面を押圧して、胴型の下端面が規制面に当接するまで下方に移動させる。そして、下スライド部材を下型と共に下方に移動させて、下型を胴型の型ガイド孔から下方に離脱させる。 The present invention relates to a disassembling and assembling apparatus for disassembling and assembling a molding die configured of a body die, an upper die, and a lower die, and press-molding a glass optical element by bringing the upper die and the lower die close to each other. The body mold has a mold guide hole that penetrates in the vertical direction. The upper die has a smaller diameter than the outer diameter of the trunk die, is inserted into the die guide hole from above, and is restricted from moving downward relative to the trunk die at a predetermined insertion position. The lower die has a diameter smaller than the outer diameter of the trunk die, is inserted into the die guide hole from below, and is restricted from moving upward relative to the trunk die at a predetermined insertion position. The disassembly and assembly apparatus includes an outer sleeve, an upper slide member, and a lower slide member, each of which is formed of metal or ceramics. The outer sleeve is cylindrical and has a large-diameter hole having an inner diameter into which the body die can be inserted, and a small-diameter hole having an inner diameter into which the lower mold can be inserted and the trunk die cannot be inserted, which is located below the large-diameter hole. And a regulating surface formed between the large-diameter hole and the small-diameter hole and opposed to the lower end surface of the body mold. The upper slide member is slidably inserted into the large-diameter hole from above, and has a pressing portion facing the upper end surface of the body mold. The lower slide member is slidably inserted into the small-diameter hole from below, and has a support portion that supports the lower end surface of the lower die. In a state where the forming die is disposed in the large-diameter hole, the upper end surface of the body die is pressed by the pressing portion of the upper slide member, and is moved downward until the lower end surface of the body die contacts the regulating surface. Then, the lower slide member is moved downward together with the lower die, and the lower die is detached downward from the die guide hole of the body die.
　この本発明の成形型の分解組立装置では、筒状のアウタスリーブに対する上スライド部材と下スライド部材の上下動によって、胴型に対する下型の挿脱を行わせる。アウタスリーブと上スライド部材と下スライド部材はそれぞれ、複雑な動作部分や複雑な形状を要さないシンプルな構造であるため、耐熱性に優れる金属又はセラミックスによって形成可能である。従って、ガラス製光学素子の成形後に、ガラス転移点に近い高温状態のまま成形型の分解を行うことができ、冷却に要する時間及び手間を節約して生産性を向上させることができる。 In the disassembling and assembling apparatus for a molding die according to the present invention, the lower die is inserted into and removed from the body die by vertically moving the upper slide member and the lower slide member with respect to the cylindrical outer sleeve. Since the outer sleeve, the upper slide member, and the lower slide member each have a simple structure that does not require a complicated operation part or a complicated shape, they can be formed of metal or ceramics having excellent heat resistance. Therefore, after the molding of the glass optical element, the mold can be disassembled in a high temperature state close to the glass transition point, and the time and labor required for cooling can be saved and the productivity can be improved.
　下スライド部材の支持部に下型の下端面を吸引保持可能として、下型を胴型の型ガイド孔から下方に離脱させるときに、下型を支持部に吸引しながら下スライド部材を下方に移動させてもよい。これにより、胴型に対する下型の摺動抵抗が大きい場合でも、確実に下型を下方に離脱させることができる。 When the lower die is detached downward from the mold guide hole of the trunk die, the lower slide member is pulled downward while sucking the lower die into the support part, by allowing the lower end surface of the lower die to be sucked and held by the support portion of the lower slide member. You may move it. Thereby, even if the sliding resistance of the lower mold with respect to the body mold is large, the lower mold can be reliably detached downward.
　アウタスリーブには、大径孔部と外部を径方向に連通させる上部挿脱孔と、小径孔部と外部を径方向に連通させる下部挿脱孔とを設けることが好ましい。上部挿脱孔を通して大径孔部に成形型を挿脱する。また、下型が胴型から下方に離脱した状態で、下部挿脱孔を通して、アウタスリーブ外への成形後のガラス製光学素子の搬出及びアウタスリーブ内への成形前のガラス材料の搬入を行う。上部挿脱孔や下部挿脱孔のような径方向への貫通部分は、筒状のアウタスリーブの構造を複雑化させずに形成しやすく、分解組立装置の耐熱性を損なわずに効率的にアウタスリーブ内外への対象物の挿脱を行わせることができる。 It is preferable that the outer sleeve be provided with an upper insertion / removal hole for radially communicating the large diameter hole with the outside and a lower insertion / removal hole for radially communicating the small diameter hole with the outside. The mold is inserted into and removed from the large-diameter hole through the upper insertion hole. Further, in a state where the lower mold is detached downward from the body mold, the glass optical element after molding is carried out of the outer sleeve and the glass material before molding is carried into the outer sleeve through the lower insertion hole. . Radial through-holes such as the upper and lower holes are easy to form without complicating the structure of the cylindrical outer sleeve, and are efficient without impairing the heat resistance of the disassembly and assembly equipment. An object can be inserted into and removed from the outer sleeve.
　下スライド部材は、下型の下端面を支持する支持部の周縁に、上部挿脱孔を通して大径孔部に挿入される成形型の径方向位置を定める位置決め部を備えることが好ましい。これにより、成形型の分解に際して、成形型をアウタスリーブ内の適切な位置に簡単に配置することができる。 The lower slide member preferably includes a positioning portion on the periphery of the support portion that supports the lower end surface of the lower die, which determines the radial position of the molding die inserted into the large-diameter hole portion through the upper insertion / removal hole. Thus, when the mold is disassembled, the mold can be easily arranged at an appropriate position in the outer sleeve.
　上スライド部材は、押圧部の内径側に下方へ開口する下端凹部を有し、吸引によって上型を胴型に対して上方に移動させて上型の一部を下端凹部に進入可能とすることが好ましい。下スライド部材を下型と共に下方に移動させる前に、上型を下端凹部側（上方）に吸引してガラス製光学素子から離間させることで、成形後のガラス製光学素子を確実に下型側に保持させて取り出しやすくできる。 The upper slide member has a lower end concave portion that opens downward on the inner diameter side of the pressing portion, and allows the upper die to move upward with respect to the body die by suction so that a part of the upper die can enter the lower end concave portion. Is preferred. Before the lower slide member is moved downward together with the lower mold, the upper mold is sucked toward the lower end concave portion (upward) and separated from the glass optical element, so that the molded glass optical element is securely moved to the lower mold side. Can be easily taken out.
　分解組立装置は、不活性ガス雰囲気のチャンバー内に配置されていることが好ましい。 The disassembly / assembly apparatus is preferably disposed in a chamber in an inert gas atmosphere.
　本発明はまた、上述した成形型の分解組立装置を有する成形装置に関するものである。成形装置は、成形型の型ガイド孔内のガラス材料をガラス転移点以上に加熱する加熱部と、加熱部により加熱した状態で、上型と下型を接近させて成形型の型ガイド孔内でガラス製光学素子をプレス成形させるプレス部とを有し、加熱部とプレス部と分解組立装置の間で成形型を循環して移送する。加熱部とプレス部と分解組立装置が不活性ガス雰囲気のチャンバー内に配置され、分解組立装置による成形型の分解及び組み立てと、加熱部による成形型の加熱と、プレス部によるプレス成形とを含む一連の動作が全てチャンバー内で行われる。これにより、不活性ガス雰囲気で高温のチャンバー内環境に成形型が常に位置し、成形型の耐久性を向上させることができる。特に成形型の上型や下型にガラス融着防止用のコーティング層を設けている場合に、コーティング層の損傷防止に寄与する。 The present invention also relates to a molding apparatus having the above-described mold disassembling and assembling apparatus. The molding device includes a heating unit that heats the glass material in the mold guide hole of the molding die to a temperature equal to or higher than the glass transition point, and an upper mold and a lower mold that are close to each other while being heated by the heating unit. And a press unit for press-forming the glass optical element, and the molding die is circulated and transferred between the heating unit, the press unit, and the disassembling and assembling apparatus. A heating unit, a pressing unit, and a disassembly / assembly device are disposed in a chamber in an inert gas atmosphere, and include disassembly and assembly of a mold by the disassembly / assembly device, heating of the mold by the heating unit, and press molding by the press unit. A series of operations are all performed in the chamber. Thereby, the mold is always located in the high temperature chamber environment in the inert gas atmosphere, and the durability of the mold can be improved. In particular, when the upper and lower molds of the mold are provided with a coating layer for preventing glass fusion, this contributes to prevention of damage to the coating layer.
　以上の本発明の成形型の分解組立装置及び成形装置によれば、高温状態で成形型の分解及び組み立てを確実に行うことができ、成形型によるガラス製光学素子の生産性向上を実現できる。 According to the mold disassembling and assembling apparatus and the molding apparatus of the present invention described above, the mold can be reliably disassembled and assembled at a high temperature, and the productivity of the glass optical element by the mold can be improved.
本実施形態の成形装置の概略構造を示す側面図である。It is a side view which shows the schematic structure of the shaping | molding apparatus of this embodiment. 成形型の断面図であり、（Ａ）は成形前、（Ｂ）は成形後の状態を示す。It is sectional drawing of a shaping | molding die, (A) shows the state before shaping | molding, (B) shows the state after shaping | molding. 成形型を搬入する前の分解組立装置の断面図である。It is sectional drawing of the disassembly apparatus before carrying in a molding die. 図３のIV-IV線に沿う断面図である。FIG. 4 is a sectional view taken along the line IV-IV in FIG. 3. 内部に成形型を設置した状態の分解組立装置を示す断面図である。It is sectional drawing which shows the disassembly / assembly apparatus in the state which installed the shaping | molding die. 成形型の胴型を上スライド部材により移動規制位置まで下方に押圧移動させた状態の分解組立装置の断面図である。It is sectional drawing of the disassembly / assembly apparatus in the state where the trunk | drum of a shaping | molding die was pressed and moved to the movement restriction position by the upper slide member. 移動規制位置にある胴型に対して上型を吸引して上方へ移動させた状態の分解組立装置の断面図である。FIG. 6 is a cross-sectional view of the disassembly / assembly device in a state where the upper die is suctioned and moved upward with respect to the trunk die at the movement restriction position. 移動規制位置にある胴型に対して下型を下スライド部材に伴って下方へ移動させて成形型を分解した状態の分解組立装置の断面図である。It is sectional drawing of the disassembly / assembly apparatus in the state which displaced the lower mold | die with the lower slide member with respect to the trunk | drum at a movement restriction position, and disassembled the molding die.
　図１は、本発明を適用した成形装置全体の概略構造を示している。本実施形態の成形装置１は、成形前のガラス材料であるガラスプリフォーム９５（図２、図８参照）をプレス成形して、ガラス製光学素子であるガラスレンズ９０（図２、図８参照）を製造するものである。図１に示すように、成形装置１は、分解組立装置１０、供給部１１、第１加熱部１２、第２加熱部１３、プレス部１４、徐冷部１５、取出部１６を備えており、成形型１７を順次移送しながら加工を行う。供給部１１から取出部１６までは、組立状態の成形型１７（図２参照）を一連の移送ラインで移送する。分解組立装置１０では、成形型１７の分解と組み立てを行う。分解組立装置１０で組み立てられた成形型１７は、図示を省略する移送経路を通って供給部１１に戻される。すなわち、成形装置１は、分解組立装置１０、供給部１１、第１加熱部１２、第２加熱部１３、プレス部１４、徐冷部１５、取出部１６の間で成形型１７を循環して移送する。 FIG. 1 shows a schematic structure of an entire molding apparatus to which the present invention is applied. The molding apparatus 1 of the present embodiment press-molds a glass preform 95 (see FIGS. 2 and 8), which is a glass material before molding, and a glass lens 90 (see FIGS. 2 and 8) which is a glass optical element. ) Is manufactured. As shown in FIG. 1, the molding apparatus 1 includes a disassembly / assembly apparatus 10, a supply unit 11, a first heating unit 12, a second heating unit 13, a press unit 14, a slow cooling unit 15, and an unloading unit 16, Processing is performed while sequentially transferring the molding die 17. From the supply unit 11 to the take-out unit 16, the assembled mold 17 (see FIG. 2) is transferred by a series of transfer lines. In the disassembly / assembly apparatus 10, the mold 17 is disassembled and assembled. The molding die 17 assembled by the disassembly / assembly apparatus 10 is returned to the supply unit 11 through a transfer path (not shown). That is, the molding apparatus 1 circulates the molding die 17 among the disassembly / assembly apparatus 10, the supply unit 11, the first heating unit 12, the second heating unit 13, the press unit 14, the slow cooling unit 15, and the removal unit 16. Transfer.
　より詳しくは、供給部１１は、分解組立装置１０で組み立てられた成形型１７を受け取って加工用の移送ライン上に供給する部分である。第１加熱部１２と第２加熱部１３は、ガラスプリフォーム９５をガラス転移点よりも高い温度まで加熱して軟化させる部分である。プレス部１４は、軟化したガラスプリフォーム９５を後述する上型３０と下型４０（図２参照）によってプレス成形する部分である。徐冷部１５は、成形後のガラスレンズ９０を含む成形型１７の温度を、ガラスレンズ９０が硬化する温度（ガラス転移点）を下回るようにさせる部分である。徐冷部１５での成形型１７の温度低下は、ガラス転移点に近い値（例えば、５２１℃のガラス転移点に対して４７０℃程度）までに留められ、成形型１７は高温な状態のまま取出部１６に送られる。取出部１６は、成形型１７を加工用の移送ラインから取り出す部分である。分解組立装置１０は、成形型１７を部分的に分解して成形後のガラスレンズ９０を取り出すと共に、次に成形するガラスプリフォーム９５を上型３０と下型４０の間にセットして成形型１７を組み立てる部分である。 供給 More specifically, the supply unit 11 is a part that receives the mold 17 assembled by the disassembly / assembly apparatus 10 and supplies the mold 17 onto a transfer line for processing. The first heating unit 12 and the second heating unit 13 are portions that heat the glass preform 95 to a temperature higher than the glass transition point to soften. The press section 14 is a section where the softened glass preform 95 is press-formed by an upper mold 30 and a lower mold 40 (see FIG. 2) described later. The slow cooling unit 15 is a part that lowers the temperature of the molding die 17 including the glass lens 90 after molding to a temperature below which the glass lens 90 hardens (glass transition point). The temperature drop of the mold 17 in the slow cooling section 15 is kept to a value close to the glass transition point (for example, about 470 ° C. with respect to the glass transition point of 521 ° C.), and the mold 17 remains in a high temperature state. It is sent to the extraction unit 16. The take-out part 16 is a part for taking out the molding die 17 from a transfer line for processing. The disassembling and assembling apparatus 10 partially disassembles the mold 17 to take out the glass lens 90 after molding, and sets a glass preform 95 to be molded next between the upper mold 30 and the lower mold 40 to form the mold. 17 is a part for assembling.
　第１加熱部１２から取出部１６はそれぞれ、下部ステージ１００と上部ステージ１０１を有している。上部ステージ１０１はピストン１０２から延びるピストンロッド１０３の下端に支持されており、ピストン１０２を駆動して上部ステージ１０１を上下に移動させることができる。下部ステージ１００と上部ステージ１０１には加熱用のヒータ１０４が設けられている。第１加熱部１２と第２加熱部１３ではヒータ１０４によって成形型１７の加熱が行われる。プレス部１４でのプレス加工は、上部ステージ１０１を下降させ、上部ステージ１０１に設けられた押圧部材１０５で上型３０を押し込むことにより行われる。 部 The removal unit 16 from the first heating unit 12 has a lower stage 100 and an upper stage 101, respectively. The upper stage 101 is supported by a lower end of a piston rod 103 extending from a piston 102, and can drive the piston 102 to move the upper stage 101 up and down. The lower stage 100 and the upper stage 101 are provided with a heater 104 for heating. In the first heating unit 12 and the second heating unit 13, the mold 104 is heated by the heater 104. Pressing in the press section 14 is performed by lowering the upper stage 101 and pressing the upper die 30 by a pressing member 105 provided on the upper stage 101.
　供給部１１から取出部１６までの加工用の移送ラインや分解組立装置１０は全て、チャンバー１８内に設置されている。図示を省略しているが、分解組立装置１０から供給部１１まで成形型１７を搬送する移送経路もチャンバー１８内に設置されている。つまり、成形型１７の分解と組み立てを含む成形に関する全ての工程をチャンバー１８内で完結できる。チャンバー１８内は気密に保たれており、外部との空気流通が遮断されている。チャンバー１８にはガス流入口１８ａが設けられており、ガス流入口１８ａから流入する不活性ガスでチャンバー１８内を満たして酸素濃度を所定値以下にした状態で成形加工を行うことができる。 (4) The transfer line for processing from the supply unit 11 to the removal unit 16 and the disassembly / assembly apparatus 10 are all installed in the chamber 18. Although not shown, a transfer path for transferring the mold 17 from the disassembly / assembly apparatus 10 to the supply unit 11 is also provided in the chamber 18. That is, all the steps related to molding including disassembly and assembly of the mold 17 can be completed in the chamber 18. The inside of the chamber 18 is kept airtight, and the air flow with the outside is shut off. The chamber 18 is provided with a gas inlet 18a, and molding can be performed in a state where the inside of the chamber 18 is filled with an inert gas flowing from the gas inlet 18a and the oxygen concentration is set to a predetermined value or less.
　図２を参照して成形型１７の詳細を説明する。成形型１７は、胴型２０と上型３０と下型４０により構成される。図２に示す基準軸Ｘは、成形型１７により成形されるガラスレンズ９０の光軸に一致するものである。上型３０と下型４０は、それぞれの中心軸が基準軸Ｘと一致するように胴型２０に支持された状態で、ガラスプリフォーム９５を間に挟んでプレスしてガラスレンズ９０を製造する。ガラスレンズ９０は非球面レンズであり、図２（Ｂ）に示すように、レンズ面として凹面９１と凸面９２を表裏に有する負メニスカスレンズである。 詳細 The details of the mold 17 will be described with reference to FIG. The molding die 17 includes a body die 20, an upper die 30, and a lower die 40. The reference axis X shown in FIG. 2 coincides with the optical axis of the glass lens 90 formed by the mold 17. The upper mold 30 and the lower mold 40 are pressed by sandwiching a glass preform 95 therebetween while being supported by the body mold 20 such that their respective central axes coincide with the reference axis X, thereby manufacturing a glass lens 90. . The glass lens 90 is an aspheric lens, and as shown in FIG. 2B, is a negative meniscus lens having a concave surface 91 and a convex surface 92 as a lens surface on both sides.
　成形装置１における供給部１１から取出部１６までの移送ラインと分解組立装置１０では、基準軸Ｘが上下方向に向くようにして成形型１７が設置される。以下の説明では、基準軸Ｘに沿う方向を上下方向とし、基準軸Ｘに対して垂直な方向を径方向とする。 移送 In the transfer line from the supply unit 11 to the take-out unit 16 in the molding apparatus 1 and the disassembly / assembly apparatus 10, the molding die 17 is installed so that the reference axis X is oriented in the vertical direction. In the following description, a direction along the reference axis X is defined as an up-down direction, and a direction perpendicular to the reference axis X is defined as a radial direction.
　成形型１７を構成する胴型２０と上型３０と下型４０はそれぞれ、高温下でのプレス加工における破損や劣化が生じにくいように、耐熱性及び耐久性に優れる材質で形成されている。具体的には、炭化ケイ素（ＳｉＣ）や窒化ケイ素（Ｓｉ３Ｎ４）のようなセラミックス、あるいは超硬合金のような金属で形成されている。 The body mold 20, the upper mold 30, and the lower mold 40 constituting the molding die 17 are each formed of a material having excellent heat resistance and durability so that breakage and deterioration in press working at high temperatures are unlikely to occur. Specifically, it is formed of a ceramic such as silicon carbide (SiC) or silicon nitride (Si 3 N 4 ), or a metal such as a cemented carbide.
　胴型２０は、基準軸Ｘを囲む円筒状体であり、外径サイズが一定の円筒状の外面を有している。胴型２０の内部には上下方向に貫通する型ガイド孔２１が形成されている。型ガイド孔２１は、上方から順に、上側孔部２２、小径孔部２３、下側孔部２４が同軸上に並んで構成されている。上側孔部２２と下側孔部２４は、小径孔部２３よりも内径が大きい。上側孔部２２と小径孔部２３の境界部分には、環状で上向きの上型規制面２５が形成されている。胴型２０の上端には、上側孔部２２の開口部分の周囲に、胴型２０の径方向に延びる環状の上端面２６が形成されている。胴型２０の下端には、下側孔部２４の開口部分の周囲に、胴型２０の径方向に延びる環状の下端面２７が形成されている。 The barrel mold 20 is a cylindrical body surrounding the reference axis X, and has a cylindrical outer surface having a constant outer diameter size. A mold guide hole 21 penetrating in the vertical direction is formed inside the body mold 20. The mold guide hole 21 is configured such that an upper hole 22, a small diameter hole 23, and a lower hole 24 are coaxially arranged in order from the top. The inner diameter of the upper hole 22 and the lower hole 24 is larger than that of the small diameter hole 23. At the boundary between the upper hole portion 22 and the small-diameter hole portion 23, an upper die regulating surface 25 that is annular and faces upward is formed. At the upper end of the body die 20, an annular upper end surface 26 extending in the radial direction of the body die 20 is formed around the opening of the upper hole portion 22. At the lower end of the body die 20, an annular lower end surface 27 extending in the radial direction of the body die 20 is formed around the opening of the lower hole portion 24.
　上型３０は、上下方向に伸びる軸部３１と、軸部３１の上部に位置する鍔状の大径部３２を有する。軸部３１は基準軸Ｘを中心とする円柱形状をなし、下方を向く先端に成形面３３が形成されている。大径部３２は、軸部３１と同軸上に位置し、軸部３１よりも大径で、胴型２０の外径よりも小径の円柱形状である。成形面３３は、ガラスレンズ９０の凹面９１に対応する形状の凸面である。軸部３１と大径部３２の境界部分には、上型３０の径方向に延びる、環状で下向きの被規制面３４が形成されている。大径部３２の上端には、上向きの平面である上端面３５が形成されている。 The upper die 30 has a shaft portion 31 extending in the vertical direction and a flange-shaped large-diameter portion 32 located above the shaft portion 31. The shaft portion 31 has a cylindrical shape centered on the reference axis X, and has a shaping surface 33 formed at a tip facing downward. The large-diameter portion 32 is coaxial with the shaft portion 31, has a larger diameter than the shaft portion 31, and has a columnar shape smaller in diameter than the outer diameter of the body mold 20. The molding surface 33 is a convex surface having a shape corresponding to the concave surface 91 of the glass lens 90. At the boundary between the shaft portion 31 and the large-diameter portion 32, an annular downwardly regulated surface 34 extending in the radial direction of the upper die 30 is formed. At the upper end of the large-diameter portion 32, an upper end surface 35 that is an upwardly facing plane is formed.
　上型３０の軸部３１は、胴型２０の小径孔部２３に対して上方から挿入され、この挿入状態で上下方向へ摺動可能に案内される。軸部３１の外径が小径孔部２３の内径に対応し、大径部３２の外径が上側孔部２２の内径に対応する。軸部３１と小径孔部２３の間の径方向のクリアランスは極めて小さく（例えば数μｍ）、胴型２０に対する上型３０の径方向位置及び角度（基準軸Ｘとの平行度）が精密に決められる。成形型１７内にガラスレンズ９０やガラスプリフォーム９５が配置されていない状態において、胴型２０に対して上型３０は、被規制面３４が上型規制面２５に当接する位置まで挿入することができ、当該位置よりも下方への上型３０の移動（胴型２０からの脱落）は規制される。 軸 The shaft portion 31 of the upper mold 30 is inserted into the small-diameter hole portion 23 of the body mold 20 from above, and is guided slidably in the up and down direction in this inserted state. The outer diameter of the shaft portion 31 corresponds to the inner diameter of the small hole portion 23, and the outer diameter of the large diameter portion 32 corresponds to the inner diameter of the upper hole portion 22. The radial clearance between the shaft portion 31 and the small-diameter hole portion 23 is extremely small (for example, several μm), and the radial position and angle (parallelism with the reference axis X) of the upper die 30 with respect to the body die 20 are precisely determined. Can be In a state where the glass lens 90 and the glass preform 95 are not arranged in the molding die 17, the upper die 30 is inserted into the body die 20 until the regulated surface 34 comes into contact with the upper die regulating surface 25. The movement of the upper die 30 below the position (dropping from the trunk die 20) is restricted.
　図２（Ａ）は、上型３０の上端面３５が胴型２０の上端面２６よりも上方に突出したプレス前の状態を示し、図２（Ｂ）は、上型３０の上端面３５が胴型２０の上端面２６と面一になるまで上型３０を胴型２０内に押し込んだプレス後の状態を示している。図２（Ｂ）の状態では、上型規制面２５と被規制面３４との間に僅かな隙間がある。また、図２（Ｂ）の状態では、成形面３３が形成されている軸部３１の先端部分が、小径孔部２３よりも下方の下側孔部２４まで達している。 FIG. 2A shows a state before pressing in which the upper end surface 35 of the upper die 30 projects above the upper end surface 26 of the body die 20, and FIG. The state after the press which pushed the upper mold | die 30 into the trunk | drum 20 until it is flush with the upper end surface 26 of the trunk | drum 20 is shown. In the state shown in FIG. 2B, there is a slight gap between the upper mold regulating surface 25 and the regulated surface 34. In the state of FIG. 2B, the tip of the shaft portion 31 on which the molding surface 33 is formed reaches the lower hole 24 below the small-diameter hole 23.
　下型４０は、上下方向に伸びる軸部４１と、軸部４１の下部に位置する鍔状の大径部４２とを有する。軸部４１は基準軸Ｘを中心とする円柱形状をなし、上方を向く先端側に成形面４３が形成されている。大径部４２は、軸部４１と同軸上に位置し、軸部４１よりも大径で、胴型２０の外径よりも小径の円柱形状である。成形面４３は、ガラスレンズ９０の凸面９２に対応する形状の凹面である。軸部４１と大径部４２の境界部分には、下型４０の径方向に延びる、環状で上向きの被規制面４４が形成されている。大径部４２の下端には、下向きの平面である下端面４５が形成されている。 The lower mold 40 has a shaft portion 41 extending vertically and a flange-shaped large-diameter portion 42 located below the shaft portion 41. The shaft portion 41 has a cylindrical shape centered on the reference axis X, and has a molding surface 43 formed on the tip side facing upward. The large-diameter portion 42 is coaxial with the shaft portion 41, has a larger diameter than the shaft portion 41, and has a columnar shape smaller in diameter than the outer diameter of the body mold 20. The molding surface 43 is a concave surface having a shape corresponding to the convex surface 92 of the glass lens 90. At the boundary between the shaft portion 41 and the large-diameter portion 42, an annular upwardly-regulated regulated surface 44 extending in the radial direction of the lower die 40 is formed. At the lower end of the large-diameter portion 42, a lower end surface 45 that is a downwardly facing flat surface is formed.
　下型４０の軸部４１は、胴型２０の下側孔部２４に対して下方から挿入され、この挿入状態で上下方向へ摺動可能に案内される。軸部４１の外径が下側孔部２４の内径に対応する。軸部４１と下側孔部２４の間の径方向のクリアランスは極めて小さく（例えば数μｍ）、胴型２０に対する下型４０の径方向位置及び角度（基準軸Ｘとの平行度）が精密に決められる。胴型２０に対して下型４０は、被規制面４４が下端面２７に当接する位置まで挿入することができ、当該位置よりも上方への下型４０の移動は規制される。この状態で、大径部４２が胴型２０から下方に突出する。大径部４２の外径は胴型２０の外径よりも所定量小さく、被規制面４４が下端面２７に当接する状態で、下端面２７の外径側の周縁部には、被規制面４４が当接しない環状の領域が存在する。 軸 The shaft 41 of the lower mold 40 is inserted into the lower hole 24 of the body mold 20 from below, and is guided slidably in the vertical direction in this inserted state. The outer diameter of the shaft 41 corresponds to the inner diameter of the lower hole 24. The radial clearance between the shaft portion 41 and the lower hole portion 24 is extremely small (for example, several μm), and the radial position and angle (parallelism with the reference axis X) of the lower mold 40 with respect to the body mold 20 are precisely determined. I can decide. The lower die 40 can be inserted into the body die 20 to a position where the regulated surface 44 contacts the lower end surface 27, and the movement of the lower die 40 above the position is restricted. In this state, the large diameter portion 42 protrudes downward from the body mold 20. The outer diameter of the large-diameter portion 42 is smaller than the outer diameter of the body mold 20 by a predetermined amount, and in a state in which the regulated surface 44 is in contact with the lower end surface 27, the outer peripheral side of the lower end surface 27 has a regulated surface. There is an annular region where 44 does not abut.
　型ガイド孔２１の上側孔部２２から小径孔部２３に向けて上方から軸部３１を挿入し、下側孔部２４に対して下方から軸部４１を挿入することにより、胴型２０に対して上型３０と下型４０が組み付けられて成形型１７が構成される。型ガイド孔２１内で成形面３３と成形面４３が上下方向に対向する。成形面３３上と成形面４３上にはそれぞれ、図示を省略するコーティング層が形成されている。コーティング層は炭素膜等からなり、上型３０や下型４０に対するガラスレンズ９０の融着を抑制する。 The shaft portion 31 is inserted from above from the upper hole portion 22 of the mold guide hole 21 toward the small-diameter hole portion 23, and the shaft portion 41 is inserted from below into the lower hole portion 24. The upper die 30 and the lower die 40 are assembled to form the molding die 17. The molding surface 33 and the molding surface 43 face up and down in the mold guide hole 21. A coating layer (not shown) is formed on each of the molding surface 33 and the molding surface 43. The coating layer is made of a carbon film or the like, and suppresses fusion of the glass lens 90 to the upper mold 30 and the lower mold 40.
　成形装置１においてプレス部１４でプレス加工を行う前の段階（供給部１１から第２加熱部１３）では、下型４０の成形面４３上にガラスプリフォーム９５を載せ、上型３０の上端面３５が胴型２０の上端面２６よりも上方に突出する形態で成形型１７が移送される（図１、図２（Ａ）参照）。プレス部１４でプレス成形する際に、上部ステージ１０１に設けた押圧部材１０５（図１参照）によって上型３０を押圧する。押圧部材１０５は、上型３０の上端面３５よりも広い面で押圧するため、押圧部材１０５が胴型２０の上端面２６に当接すると、上型３０がそれ以上押し込まれなくなる。その結果、上型３０の上端面３５が胴型２０の上端面２６と面一になる状態で、プレス部１４におけるプレスが完了する（図１、図２（Ｂ）参照）。これにより、ガラスプリフォーム９５が成形面３３と成形面４３の間で変形してガラスレンズ９０が成形される。成形後の胴型２０の上型規制面２５と上型３０の被規制面３４との間には、上下方向に隙間があり（図２（Ｂ）参照）、この状態で成形型１７が分解組立装置１０まで搬送される。 In the stage before the press working in the press unit 14 in the forming apparatus 1 (from the supply unit 11 to the second heating unit 13), the glass preform 95 is placed on the forming surface 43 of the lower die 40, and the upper end surface of the upper die 30 The molding die 17 is transferred in a form in which 35 projects above the upper end surface 26 of the body die 20 (see FIGS. 1 and 2A). When press-molding in the press section 14, the upper die 30 is pressed by a pressing member 105 (see FIG. 1) provided on the upper stage 101. Since the pressing member 105 presses on a surface wider than the upper end surface 35 of the upper die 30, when the pressing member 105 comes into contact with the upper end surface 26 of the body die 20, the upper die 30 is no longer pressed. As a result, the press in the press section 14 is completed with the upper end surface 35 of the upper die 30 being flush with the upper end surface 26 of the body die 20 (see FIGS. 1 and 2B). Thereby, the glass preform 95 is deformed between the molding surface 33 and the molding surface 43, and the glass lens 90 is molded. There is a vertical gap between the upper mold regulating surface 25 of the body mold 20 and the regulated surface 34 of the upper mold 30 after molding (see FIG. 2 (B)), and the molding die 17 is disassembled in this state. It is transported to the assembly device 10.
　続いて、図３から図８を参照して、分解組立装置１０について説明する。分解組立装置１０は、アウタスリーブ５０と上スライド部材６０と下スライド部材７０を備えている。アウタスリーブ５０と上スライド部材６０と下スライド部材７０はそれぞれ、成形型１７を構成する各部と同様に、耐熱性及び耐久性に優れる材質で形成されている。具体的には、炭化ケイ素（ＳｉＣ）や窒化ケイ素（Ｓｉ３Ｎ４）のようなセラミックス、あるいは超硬合金のような金属で形成されている。 Next, the disassembly and assembly apparatus 10 will be described with reference to FIGS. The disassembly and assembly device 10 includes an outer sleeve 50, an upper slide member 60, and a lower slide member 70. The outer sleeve 50, the upper slide member 60, and the lower slide member 70 are each formed of a material having excellent heat resistance and durability, similarly to the respective parts constituting the molding die 17. Specifically, it is formed of a ceramic such as silicon carbide (SiC) or silicon nitride (Si 3 N 4 ), or a metal such as a cemented carbide.
　アウタスリーブ５０は上下方向に長い円筒状の概略形状を有しており、上下方向に貫通する挿入空間５１を内部に有する。挿入空間５１は、アウタスリーブ５０の上端面に開口する大径孔部５２と、アウタスリーブ５０の下端面に開口する小径孔部５３とにより構成され、大径孔部５２と小径孔部５３の境界部分に、上方を向く環状の規制面５４が形成されている。大径孔部５２と小径孔部５３はそれぞれ円筒状の内面を有しており、大径孔部５２の内径よりも小径孔部５３の内径の方が小さい。大径孔部５２の内径は、胴型２０の外径よりも大きい。小径孔部５３の内径は、胴型２０の外径よりも小さく、下型４０の大径部４２の外径よりも大きい。 The outer sleeve 50 has a cylindrical shape that is long in the vertical direction, and has an insertion space 51 penetrating in the vertical direction. The insertion space 51 is composed of a large-diameter hole 52 that opens on the upper end surface of the outer sleeve 50 and a small-diameter hole 53 that opens on the lower end surface of the outer sleeve 50. An annular regulating surface 54 facing upward is formed at the boundary portion. The large-diameter hole 52 and the small-diameter hole 53 each have a cylindrical inner surface, and the inner diameter of the small-diameter hole 53 is smaller than the inner diameter of the large-diameter hole 52. The inner diameter of the large-diameter hole portion 52 is larger than the outer diameter of the body mold 20. The inside diameter of the small diameter hole 53 is smaller than the outside diameter of the body mold 20 and larger than the outside diameter of the large diameter part 42 of the lower mold 40.
　アウタスリーブ５０には、径方向に貫通して挿入空間５１の内外を通じさせる複数の孔が形成されている。具体的には、大径孔部５２と外部を径方向に連通させる上部挿脱孔５５及び押出用孔５６と、小径孔部５３と外部を径方向に連通させる下部挿脱孔５７及び下部挿脱孔５８とが形成されている。上部挿脱孔５５と下部挿脱孔５７は同じ向きに開口している。押出用孔５６と下部挿脱孔５８は、同じ向きに開口しており、上部挿脱孔５５及び下部挿脱孔５７とは反対側に向けて開口している。 A plurality of holes are formed in the outer sleeve 50 so as to penetrate in the radial direction and pass through the inside and outside of the insertion space 51. More specifically, an upper insertion / removal hole 55 and an extrusion hole 56 for radially communicating the large-diameter hole 52 with the outside, a lower insertion / removal hole 57 and a lower insertion hole for radially communicating the small-diameter hole 53 with the outside. A hole 58 is formed. The upper insertion hole 55 and the lower insertion hole 57 are open in the same direction. The extrusion hole 56 and the lower insertion / removal hole 58 are opened in the same direction, and open toward the opposite side to the upper insertion / removal hole 55 and the lower insertion / removal hole 57.
　側面視（上下方向）での成形型１７の高さよりも上部挿脱孔５５の高さが大きく（図３参照）、上面視（径方向）での胴型２０の外径よりも上部挿脱孔５５の開口幅が大きい（図４参照）。すなわち、上部挿脱孔５５を通して成形型１７を挿入空間５１の大径孔部５２内に挿脱させることができる。なお、上部挿脱孔５５は、上型３０を押し込んだプレス後の状態の成形型１７（図２（Ｂ））だけでなく、上型３０が胴型２０から上方に突出しているプレス前の成形型１７（図２（Ａ））も通過可能な高さを有する。上部挿脱孔５５の下端部分は、上下方向で規制面５４と同じ位置にあり、規制面５４と径方向に連続する関係にある。 The height of the upper insertion / removal hole 55 is larger than the height of the molding die 17 in a side view (vertical direction) (see FIG. 3), and the upper insertion / removal of the upper die is larger than the outer diameter of the body mold 20 in a top view (radial direction). The opening width of the hole 55 is large (see FIG. 4). That is, the molding die 17 can be inserted into and removed from the large-diameter hole portion 52 of the insertion space 51 through the upper insertion hole 55. In addition, the upper insertion / removal hole 55 is formed not only in the molding die 17 (FIG. 2B) after pressing the upper die 30 is pressed, but also before the pressing in which the upper die 30 projects upward from the body die 20. The mold 17 (FIG. 2 (A)) also has a height that allows it to pass. The lower end portion of the upper insertion / removal hole 55 is located at the same position as the regulating surface 54 in the up-down direction, and has a radially continuous relationship with the regulating surface 54.
　押出用孔５６は、アウタスリーブ５０の径方向において上部挿脱孔５５と並ぶ位置に設けられている。側面視（上下方向）での成形型１７の高さよりも押出用孔５６の高さが小さく（図３参照）、上面視（径方向）での胴型２０の外径よりも押出用孔５６の開口幅が小さい（図４参照）。すなわち、成形型１７は押出用孔５６を通過することはできない。 The extrusion hole 56 is provided at a position in the radial direction of the outer sleeve 50 that is aligned with the upper insertion hole 55. The height of the extrusion hole 56 is smaller than the height of the molding die 17 in a side view (vertical direction) (see FIG. 3), and the extrusion hole 56 is smaller than the outer diameter of the body mold 20 in a top view (radial direction). Has a small opening width (see FIG. 4). That is, the molding die 17 cannot pass through the extrusion hole 56.
　図４に示すように、アウタスリーブ５０の側方から上部挿脱孔５５に向けて進退移動可能な挿入操作部材８０と、挿入操作部材８０とは反対側から押出用孔５６に向けて進退移動可能な取出操作部材８１とを備える。挿入操作部材８０と取出操作部材８１はそれぞれ、上下方向に一様なＶ字状の先端形状を有しており、円筒状の胴型２０の外面に複数箇所で当接して、安定した当接状態で径方向に押圧することができる。挿入操作部材８０と取出操作部材８１は、高温状態の胴型２０に接触しても変形や発火しない（アウタスリーブ５０等と同等の耐熱性を有する）金属やセラミックス等で形成されている。挿入操作部材８０と取出操作部材８１は、駆動機構８２と駆動機構８３によってそれぞれの延設方向（水平方向）に移動される。 As shown in FIG. 4, an insertion operation member 80 that can move forward and backward from the side of the outer sleeve 50 toward the upper insertion / removal hole 55, and moves forward and backward from the side opposite to the insertion operation member 80 toward the extrusion hole 56. And a possible take-out operation member 81. Each of the insertion operation member 80 and the extraction operation member 81 has a uniform V-shaped tip shape in the vertical direction, and comes into contact with the outer surface of the cylindrical body mold 20 at a plurality of locations to provide stable contact. In this state, it can be pressed in the radial direction. The insertion operation member 80 and the removal operation member 81 are formed of metal, ceramic, or the like that does not deform or ignite (has the same heat resistance as the outer sleeve 50 or the like) even when it comes into contact with the body mold 20 in a high temperature state. The insertion operation member 80 and the removal operation member 81 are moved in the respective extending directions (horizontal directions) by the drive mechanism 82 and the drive mechanism 83.
　上部挿脱孔５５及び押出用孔５６よりも下方に、アウタスリーブ５０の径方向に並ぶ位置関係で下部挿脱孔５７及び下部挿脱孔５８が配置されている。下部挿脱孔５７は上部挿脱孔５５の下方に位置し、下部挿脱孔５８は押出用孔５６の下方に位置する。下部挿脱孔５７と下部挿脱孔５８はいずれも、上部挿脱孔５５や押出用孔５６よりも上下方向の高さが小さい（図３参照）。 下部 A lower insertion / removal hole 57 and a lower insertion / removal hole 58 are arranged below the upper insertion / removal hole 55 and the extrusion hole 56 in a positional relationship arranged in the radial direction of the outer sleeve 50. The lower insertion / removal hole 57 is located below the upper insertion / removal hole 55, and the lower insertion / removal hole 58 is located below the extrusion hole 56. Both the lower insertion / removal hole 57 and the lower insertion / removal hole 58 have a smaller height in the vertical direction than the upper insertion / removal hole 55 and the extrusion hole 56 (see FIG. 3).
　図８に示すように、下部挿脱孔５７と下部挿脱孔５８に対して搬入出アーム８４を挿脱可能である。搬入出アーム８４は、アウタスリーブ５０の径方向に延設されており、駆動機構８５によって当該延設方向（水平方向）と上下方向とに移動させることができる。搬入出アーム８４は、下部挿脱孔５７側から挿入空間５１の小径孔部５３内に挿入され、小径孔部５３及び下部挿脱孔５８を貫通して先端がアウタスリーブ５０の外部に出るまで挿入方向に移動させることができる。 搬 As shown in FIG. 8, the carry-in / out arm 84 can be inserted into and removed from the lower insertion / removal hole 57 and the lower insertion / removal hole 58. The carry-in / out arm 84 extends in the radial direction of the outer sleeve 50, and can be moved in the extending direction (horizontal direction) and the vertical direction by the drive mechanism 85. The carry-in / out arm 84 is inserted into the small-diameter hole 53 of the insertion space 51 from the lower insertion / removal hole 57 side, and passes through the small-diameter hole 53 and the lower insertion / removal hole 58 until the distal end goes out of the outer sleeve 50. It can be moved in the insertion direction.
　搬入出アーム８４には、挿入方向の先端近くにレンズ保持部８６が設けられ、レンズ保持部８６よりも基端側にプリフォーム保持部８７が設けられている。レンズ保持部８６とプリフォーム保持部８７はいずれも下向きに配置されており、レンズ保持部８６は成形後のガラスレンズ９０を保持することができ、プリフォーム保持部８７は成形前のガラスプリフォーム９５を保持することができる。搬入出アーム８４は、ガラスレンズ９０やガラスプリフォーム９５をレンズ保持部８６やプリフォーム保持部８７に吸引保持する吸引構造（図示略）を備えている。 The carry-in / out arm 84 is provided with a lens holding portion 86 near the distal end in the insertion direction, and a preform holding portion 87 at a base end side of the lens holding portion 86. The lens holding part 86 and the preform holding part 87 are both arranged downward, the lens holding part 86 can hold the glass lens 90 after molding, and the preform holding part 87 is the glass preform before molding. 95 can be held. The carry-in / out arm 84 has a suction structure (not shown) for sucking and holding the glass lens 90 and the glass preform 95 on the lens holding unit 86 and the preform holding unit 87.
　上スライド部材６０は、アウタスリーブ５０の挿入空間５１のうち大径孔部５２に対して上方から上下方向へ摺動可能に挿入される円柱状の部材である。上スライド部材６０は、大径孔部５２の内面に対応する円筒状の外面形状を有する。大径孔部５２と上スライド部材６０の間の径方向のクリアランスは、成形型１７における胴型２０の型ガイド孔２１と上型３０及び下型４０との径方向のクリアランスと同程度の小ささ（例えば数μｍ）である。 The upper slide member 60 is a columnar member that is slidably inserted into the large-diameter hole portion 52 from above in the insertion space 51 of the outer sleeve 50 in a vertically slidable manner. The upper slide member 60 has a cylindrical outer surface shape corresponding to the inner surface of the large-diameter hole 52. The radial clearance between the large-diameter hole portion 52 and the upper slide member 60 is as small as the radial clearance between the die guide hole 21 of the body die 20 and the upper die 30 and the lower die 40 in the molding die 17. The size is (for example, several μm).
　上スライド部材６０の下端部分には、円筒状の内面を有して下方に向けて開口する下端凹部６１と、下端凹部６１を囲む環状の押圧部６２とが形成されている。下端凹部６１の底部には、下端凹部６１よりも開口面積の小さい吸引凹部６３が形成されている。吸引凹部６３の底面中央に吸引通路６４の端部が開口している。吸引通路６４は、上スライド部材６０内を通って、真空ポンプからなる吸引源６５に接続している。吸引源６５を駆動すると、吸引通路６４を経由して下端凹部６１と吸引凹部６３に吸引力を作用させることができる。すなわち、下端凹部６１と吸引凹部６３と吸引通路６４と吸引源６５により、上スライド部材６０側の吸引手段が構成されている。 に は At the lower end of the upper slide member 60, a lower end concave portion 61 having a cylindrical inner surface and opening downward is formed, and an annular pressing portion 62 surrounding the lower end concave portion 61 is formed. At the bottom of the lower end recess 61, a suction recess 63 having an opening area smaller than that of the lower end recess 61 is formed. An end of the suction passage 64 is opened at the center of the bottom of the suction recess 63. The suction passage 64 passes through the inside of the upper slide member 60 and is connected to a suction source 65 composed of a vacuum pump. When the suction source 65 is driven, a suction force can be applied to the lower end recess 61 and the suction recess 63 via the suction passage 64. That is, the lower recess 61, the suction recess 63, the suction passage 64, and the suction source 65 constitute a suction unit on the upper slide member 60 side.
　下スライド部材７０は、アウタスリーブ５０の挿入空間５１のうち小径孔部５３に対して下方から上下方向へ摺動可能に挿入される円柱状の部材である。下スライド部材７０は、小径孔部５３の内面に対応する円筒状の外面形状を有する。小径孔部５３と下スライド部材７０の間の径方向のクリアランスは、成形型１７における胴型２０の型ガイド孔２１と上型３０及び下型４０との径方向のクリアランスと同程度の小ささ（例えば数μｍ）である。 The lower slide member 70 is a columnar member that is slidably inserted into the small-diameter hole 53 from below in the insertion space 51 of the outer sleeve 50 in a vertically slidable manner. The lower slide member 70 has a cylindrical outer surface shape corresponding to the inner surface of the small diameter hole 53. The radial clearance between the small diameter hole 53 and the lower slide member 70 is as small as the radial clearance between the die guide hole 21 of the body die 20 and the upper die 30 and the lower die 40 in the molding die 17. (For example, several μm).
　下スライド部材７０の上端部分には、上方に向けて開口する吸引凹部７１と、吸引凹部７１の周囲に位置する下型支持部（支持部）７２とが形成されている。図４に示すように、吸引凹部７１は、周方向に等間隔で配置された４つの扇状の凹部を中央で接続した形状を有している。下型支持部７２は、吸引凹部７１を構成する４つの扇状の凹部の外側を囲む環状部７２ａと、該環状部７２ａから内径方向に突出する４つの内径突出部７２ｂとを有している。 吸引 At the upper end portion of the lower slide member 70, a suction concave portion 71 opening upward and a lower mold support portion (support portion) 72 located around the suction concave portion 71 are formed. As shown in FIG. 4, the suction recess 71 has a shape in which four fan-shaped recesses arranged at equal intervals in the circumferential direction are connected at the center. The lower mold supporting portion 72 has an annular portion 72a surrounding the outside of the four fan-shaped concave portions constituting the suction concave portion 71, and four inner diameter projecting portions 72b projecting from the annular portion 72a in the inner diameter direction.
　吸引凹部７１の底面中央（吸引凹部７１における４つの扇状の凹部が接続する中央部分）に吸引通路７３の端部が開口している。吸引通路７３は、下スライド部材７０内を通って、真空ポンプからなる吸引源７４に接続している。吸引源７４を駆動すると、吸引通路７３を経由して吸引凹部７１に吸引力を作用させることができる。すなわち、吸引凹部７１と吸引通路７３と吸引源７４により、下スライド部材７０側の吸引手段が構成されている。 端 The end of the suction passage 73 is opened at the center of the bottom surface of the suction recess 71 (the center portion where the four fan-shaped recesses in the suction recess 71 are connected). The suction passage 73 passes through the inside of the lower slide member 70 and is connected to a suction source 74 composed of a vacuum pump. When the suction source 74 is driven, a suction force can be applied to the suction recess 71 via the suction passage 73. That is, the suction recess 71, the suction passage 73, and the suction source 74 constitute a suction unit on the lower slide member 70 side.
　下型支持部７２の上面には、位置決めフランジ（位置決め部）７５が突設されている。図４に示すように、位置決めフランジ７５の形状は、上下方向に延びる下スライド部材７０の中心軸を中心とする円筒の一部分であり、成形型１７を構成する下型４０の大径部４２の外面に対応する曲率で湾曲した壁部となっている。位置決めフランジ７５は、上部挿脱孔５５を通してアウタスリーブ５０に挿入される成形型１７の挿入方向の奥側（押出用孔５６や下部挿脱孔５８寄りの位置）に設けられている。 位置 決 め A positioning flange (positioning portion) 75 protrudes from the upper surface of the lower die supporting portion 72. As shown in FIG. 4, the shape of the positioning flange 75 is a part of a cylinder centered on the center axis of the lower slide member 70 extending in the up-down direction. The wall is curved with a curvature corresponding to the outer surface. The positioning flange 75 is provided on the inner side in the insertion direction of the molding die 17 to be inserted into the outer sleeve 50 through the upper insertion / removal hole 55 (a position near the extrusion hole 56 or the lower insertion / removal hole 58).
　アウタスリーブ５０の下端には外径方向に突出するフランジ５９が形成されている。分解組立装置１０は、アウタスリーブ５０の下端面を支持する固定台座８８と、固定台座８８上に固定されてフランジ５９に係合するクランプ８９を有している。固定台座８８とクランプ８９によってアウタスリーブ５０を固定的に保持することができる。固定台座８８には上下方向に貫通する貫通部８８ａが形成されている。貫通部８８ａの内径は、下スライド部材７０の外径よりも大きく、アウタスリーブ５０（特にフランジ５９）の外径よりも小さい。 フ ラ ン ジ A flange 59 is formed at the lower end of the outer sleeve 50 to protrude in the outer diameter direction. The disassembling and assembling apparatus 10 has a fixed base 88 that supports the lower end surface of the outer sleeve 50, and a clamp 89 that is fixed on the fixed base 88 and engages with the flange 59. The outer sleeve 50 can be fixedly held by the fixing base 88 and the clamp 89. The fixing pedestal 88 is formed with a penetrating portion 88a penetrating vertically. The inner diameter of the through portion 88a is larger than the outer diameter of the lower slide member 70 and smaller than the outer diameter of the outer sleeve 50 (particularly, the flange 59).
　上スライド部材６０は、昇降機構６６によって上下に移動させることができる。下スライド部材７０は、昇降機構７６によって上下に移動させることができる。固定台座８８とクランプ８９によりアウタスリーブ５０を保持した状態で、アウタスリーブ５０の下端から下方に突出する下スライド部材７０が貫通部８８ａに挿通され、固定台座８８による制限を受けずに下スライド部材７０がアウタスリーブ５０に対して上下方向に移動可能となる。 The upper slide member 60 can be moved up and down by the lifting mechanism 66. The lower slide member 70 can be moved up and down by an elevating mechanism 76. In a state where the outer sleeve 50 is held by the fixing pedestal 88 and the clamp 89, the lower slide member 70 projecting downward from the lower end of the outer sleeve 50 is inserted into the through portion 88a, and the lower slide member 70 is not restricted by the fixed pedestal 88. 70 can be moved vertically with respect to the outer sleeve 50.
　分解組立装置１０と成形型１７を構成する各部の径方向の寸法関係は以下のようになっている。成形型１７における胴型２０の外径は、アウタスリーブ５０の大径孔部５２の内径や上スライド部材６０の外径よりも小さく、アウタスリーブ５０の小径孔部５３の内径よりも大きい。従って、胴型２０は、アウタスリーブ５０の挿入空間５１のうち大径孔部５２に挿入可能であり、小径孔部５３には挿入できない。大径孔部５２から小径孔部５３への胴型２０の移動は、下端面２７と規制面５４の当接によって規制される。 径 The radial dimensional relationships of the components constituting the disassembly / assembly apparatus 10 and the mold 17 are as follows. The outer diameter of the body die 20 in the molding die 17 is smaller than the inner diameter of the large-diameter hole 52 of the outer sleeve 50 and the outer diameter of the upper slide member 60, and is larger than the inner diameter of the small-diameter hole 53 of the outer sleeve 50. Therefore, the trunk mold 20 can be inserted into the large-diameter hole portion 52 of the insertion space 51 of the outer sleeve 50 and cannot be inserted into the small-diameter hole portion 53. The movement of the trunk die 20 from the large-diameter hole 52 to the small-diameter hole 53 is regulated by the contact between the lower end surface 27 and the regulating surface 54.
　胴型２０における上側孔部２２の内径と上型３０における大径部３２の外径はいずれも、上スライド部材６０における下端凹部６１の内径よりも小さく、吸引凹部６３の内径よりも大きい。従って、上型３０の大径部３２は下端凹部６１内に進入可能であり、該進入状態では、上型３０（大径部３２）の上端面３５によって吸引凹部６３を覆うことができる（図７参照）。大径部３２が下端凹部６１に進入可能な径方向の位置関係にあるときに、上スライド部材６０の押圧部６２の下面と胴型２０の上端面２６が上下方向に対向し、押圧部６２の下面は上型３０には対向しない（押圧部６２の内径側に上型３０が位置する）。 内径 Both the inner diameter of the upper hole portion 22 in the body die 20 and the outer diameter of the large diameter portion 32 in the upper die 30 are smaller than the inner diameter of the lower end concave portion 61 of the upper slide member 60 and larger than the inner diameter of the suction concave portion 63. Therefore, the large diameter portion 32 of the upper die 30 can enter the lower end concave portion 61, and in this state, the suction concave portion 63 can be covered by the upper end surface 35 of the upper die 30 (the large diameter portion 32) (FIG. 7). When the large-diameter portion 32 is in a radial positional relationship in which the large-diameter portion 32 can enter the lower-end concave portion 61, the lower surface of the pressing portion 62 of the upper slide member 60 and the upper end surface 26 of the body die 20 face each other in the vertical direction. Does not face the upper die 30 (the upper die 30 is located on the inner diameter side of the pressing portion 62).
　下型４０における大径部４２の外径は、アウタスリーブ５０における小径孔部５３の内径や下スライド部材７０の外径よりも小さく、吸引凹部７１の最大径部分（図４において吸引通路７３を挟んで配された対をなす扇状の凹部の外縁を結ぶ距離）よりも大きい。従って、下型４０は、大径孔部５２内に位置する状態から下方に移動して小径孔部５３内への進入が可能である。また、下スライド部材７０の下型支持部７２に対して下型４０の下端面４５が当接可能であり、下端面４５によって吸引凹部７１を覆うことができる。 The outer diameter of the large diameter portion 42 in the lower mold 40 is smaller than the inner diameter of the small diameter hole 53 in the outer sleeve 50 and the outer diameter of the lower slide member 70, and the maximum diameter portion of the suction recess 71 (the suction passage 73 in FIG. (The distance connecting the outer edges of the pair of fan-shaped concave portions disposed therebetween). Therefore, the lower die 40 can move downward from the position located in the large-diameter hole 52 and enter the small-diameter hole 53. Further, the lower end surface 45 of the lower die 40 can contact the lower die support portion 72 of the lower slide member 70, and the lower end surface 45 can cover the suction concave portion 71.
　成形装置１は、全体的な制御を統括する制御回路（図示略）を備える。制御回路は、供給部１１から取出部１６までの各部の動作制御に加えて、分解組立装置１０における、昇降機構６６、７６や駆動機構８２、８３及び８５や吸引源６５、７４等の動作を制御する。昇降機構６６、７６と駆動機構８２、８３、８５はそれぞれ、周知のピストンやシリンダやアクチュエータ等（図示略）で構成されており、制御回路を構成する駆動制御部が各アクチュエータの動作を制御する。以下の分解組立装置１０における各動作は、制御回路の制御によって実行される。 The molding apparatus 1 includes a control circuit (not shown) that controls the overall control. The control circuit controls the operations of the lifting / lowering mechanisms 66 and 76, the driving mechanisms 82, 83 and 85, and the suction sources 65 and 74 in the disassembly / assembly apparatus 10 in addition to the operation control of each unit from the supply unit 11 to the removal unit 16. Control. The elevating mechanisms 66 and 76 and the driving mechanisms 82, 83 and 85 are each composed of a well-known piston, cylinder, actuator, or the like (not shown), and a drive control unit constituting a control circuit controls the operation of each actuator. . The following operations in the disassembly / assembly apparatus 10 are executed under the control of the control circuit.
　図３から図８を参照して、分解組立装置１０の動作を説明する。図３と図４は、ガラスレンズ９０のプレス成形が完了した成形型１７を分解組立装置１０に入れる直前の状態を示している。この段階で成形型１７は、徐冷部１５を経て、ガラスレンズ９０付近がガラス転移点以下の温度まで下げられており、ガラスレンズ９０は成形後の形状を維持するようになっている。しかし、一般的なガラス製光学素子用の成形装置における冷却工程とは異なり、徐冷部１５では成形型１７を常温状態まで冷却させておらず、成形型１７はガラス転移点に近い比較的高温の状態を保ったまま分解組立装置１０に搬送される。例えば、従来は、手動で分解する場合には５０℃以下、既存の分解組立装置を用いて分解する場合には２００℃以下まで、成形型の温度を下げる必要があった。これに対し、本実施形態の分解組立装置１０では、ガラス転移点に近い値（一例として、上述したように５２１℃のガラス転移点に対して４７０℃程度、すなわちガラス転移点に対して１０％程度下げた温度）で成形型１７の分解を実施できる。 The operation of the disassembly and assembly device 10 will be described with reference to FIGS. FIGS. 3 and 4 show a state immediately before the mold 17 in which the press molding of the glass lens 90 has been completed is put into the disassembling and assembling apparatus 10. At this stage, the temperature of the vicinity of the glass lens 90 of the molding die 17 is lowered to a temperature equal to or lower than the glass transition point through the annealing part 15, and the glass lens 90 maintains the shape after molding. However, unlike the cooling process in a general molding apparatus for glass optical elements, the annealing unit 15 does not cool the mold 17 to room temperature, and the mold 17 has a relatively high temperature close to the glass transition point. Is transported to the disassembling and assembling apparatus 10 while maintaining the state. For example, conventionally, it was necessary to lower the temperature of the mold to 50 ° C. or less when disassembling manually, and to 200 ° C. or less when disassembling using an existing disassembly and assembly apparatus. On the other hand, in the disassembly and assembly apparatus 10 of the present embodiment, a value close to the glass transition point (for example, about 470 ° C. for the glass transition point of 521 ° C. as described above, ie, 10% The mold 17 can be disassembled at a temperature slightly lowered).
　成形型１７の搬入前の分解組立装置１０は、下型支持部７２の上面が、アウタスリーブ５０の規制面５４及び上部挿脱孔５５の下端と同じ高さになるように下スライド部材７０を位置させている。また、挿入空間５１内への成形型１７の挿入を妨げない上方への退避位置に上スライド部材６０を保持している。アウタスリーブ５０は、固定台座８８とクランプ８９によって固定されている。 The disassembling and assembling apparatus 10 before the loading of the molding die 17 moves the lower slide member 70 so that the upper surface of the lower die supporting portion 72 is at the same height as the regulating surface 54 of the outer sleeve 50 and the lower end of the upper insertion / removal hole 55. It is located. Further, the upper slide member 60 is held at an upward retreat position which does not hinder the insertion of the molding die 17 into the insertion space 51. The outer sleeve 50 is fixed by a fixing base 88 and a clamp 89.
　成形型１７は、搬送テーブル１９上に支持されてアウタスリーブ５０の上部挿脱孔５５の近傍まで搬送される。搬送テーブル１９の上面側には、下型４０の大径部４２を径方向に移動案内する溝状のガイド部１９ａが形成されており、ガイド部１９ａの底面に下型４０の下端面４５が支持されている。搬送テーブル１９は、アウタスリーブ５０の規制面５４及び下型支持部７２の上面と同じ高さにガイド部１９ａの底面が並ぶように上下方向の位置が定められる。図４に示すように、搬送テーブル１９の一端はアウタスリーブ５０の外面に沿う円弧形状になっており、この搬送テーブル１９の先端部分が上部挿脱孔５５の開口部分に隣接するように配置される。 The molding die 17 is supported on the transport table 19 and transported to the vicinity of the upper insertion hole 55 of the outer sleeve 50. A groove-shaped guide portion 19a for guiding the large-diameter portion 42 of the lower die 40 in the radial direction is formed on the upper surface side of the transfer table 19, and the lower end surface 45 of the lower die 40 is formed on the bottom surface of the guide portion 19a. Supported. The vertical position of the transport table 19 is determined so that the bottom surface of the guide portion 19a is arranged at the same height as the regulating surface 54 of the outer sleeve 50 and the upper surface of the lower mold support portion 72. As shown in FIG. 4, one end of the transfer table 19 is formed in an arc shape along the outer surface of the outer sleeve 50, and the end of the transfer table 19 is arranged so as to be adjacent to the opening of the upper insertion / removal hole 55. You.
　この状態で、駆動機構８２を駆動して挿入操作部材８０を図４の矢印Ｆ１方向に移動させる。挿入操作部材８０は先端のＶ字状部によって胴型２０の外面を側方から押圧して、上部挿脱孔５５を通して成形型１７を挿入空間５１の大径孔部５２内へ移動させる。すると成形型１７は、下型４０の下端面４５が、アウタスリーブ５０の規制面５４上を通って下スライド部材７０の下型支持部７２の上面に支持されるようになる。下型支持部７２は、環状部７２ａの内径側に突出する４つの内径突出部７２ｂを有するため（図４参照）、下型４０を傾かせることなく、成形型１７を安定して大径孔部５２内に挿入させることができる。 (4) In this state, the drive mechanism 82 is driven to move the insertion operation member 80 in the direction of arrow F1 in FIG. The insertion operation member 80 presses the outer surface of the body mold 20 from the side by the V-shaped portion at the tip, and moves the molding die 17 into the large-diameter hole portion 52 of the insertion space 51 through the upper insertion / removal hole 55. Then, the lower end surface 45 of the lower die 40 of the molding die 17 passes over the regulating surface 54 of the outer sleeve 50 and is supported on the upper surface of the lower die support portion 72 of the lower slide member 70. Since the lower die supporting portion 72 has four inner diameter protruding portions 72b protruding toward the inner diameter side of the annular portion 72a (see FIG. 4), the molding die 17 can be stably inserted into the large-diameter hole without tilting the lower die 40. It can be inserted into the part 52.
　アウタスリーブ５０の大径孔部５２内には、挿入される成形型１７の進行方向の奥側に、下スライド部材７０の位置決めフランジ７５が突出している。挿入操作部材８０により押圧される成形型１７は、下型４０の大径部４２の外面が位置決めフランジ７５に当接する位置まで挿入される（図５参照）。この状態で、成形型１７における基準軸Ｘが、アウタスリーブ５０、上スライド部材６０及び下スライド部材７０の中心軸と一致する。そして、下型４０の下端面４５が下型支持部７２上に載置されて吸引凹部７１を覆う。下型支持部７２は、周縁の環状部７２ａに加えて内径方向に延びる４つの内径突出部７２ｂを有するため（図４参照）、下型４０を安定して支持することができる。また、位置決めフランジ７５は大径部４２の外面に沿う円筒形状であるため、成形型１７を精度良く位置決めすることができる。 位置 決 め A positioning flange 75 of the lower slide member 70 protrudes into the large-diameter hole 52 of the outer sleeve 50 on the inner side in the traveling direction of the molding die 17 to be inserted. The molding die 17 pressed by the insertion operation member 80 is inserted to a position where the outer surface of the large diameter portion 42 of the lower die 40 contacts the positioning flange 75 (see FIG. 5). In this state, the reference axis X of the mold 17 coincides with the central axes of the outer sleeve 50, the upper slide member 60, and the lower slide member 70. Then, the lower end surface 45 of the lower die 40 is placed on the lower die supporting portion 72 to cover the suction concave portion 71. Since the lower die supporting portion 72 has four inner diameter protruding portions 72b extending in the inner diameter direction in addition to the peripheral annular portion 72a (see FIG. 4), the lower die 40 can be stably supported. In addition, since the positioning flange 75 has a cylindrical shape along the outer surface of the large-diameter portion 42, the molding die 17 can be positioned with high accuracy.
　大径孔部５２に成形型１７を挿入した図５の状態では、胴型２０の下端面２７は、アウタスリーブ５０の規制面５４に対して上方に離間して位置する。また、上スライド部材６０の押圧部６２の下面が胴型２０の上端面２６に対して上方に離間して対向する。胴型２０の外面と大径孔部５２の内面との間には径方向のクリアランスがあり、このクリアランスは、アウタスリーブ５０に対する上スライド部材６０及び下スライド部材７０の径方向のクリアランスよりも大きい。 In the state of FIG. 5 in which the molding die 17 is inserted into the large-diameter hole portion 52, the lower end surface 27 of the trunk die 20 is located above and separated from the regulating surface 54 of the outer sleeve 50. Further, the lower surface of the pressing portion 62 of the upper slide member 60 faces the upper end surface 26 of the body mold 20 while being separated upward. There is a radial clearance between the outer surface of the trunk die 20 and the inner surface of the large-diameter hole portion 52, and this clearance is larger than the radial clearance of the upper slide member 60 and the lower slide member 70 with respect to the outer sleeve 50. .
　成形型１７を図５に示す状態にセットしたら、昇降機構６６を駆動して上スライド部材６０を下方に移動させる。上スライド部材６０が下降すると押圧部６２の下面が胴型２０の上端面２６に当接し、胴型２０を下方へ押し下げる（図６参照）。上型３０における大径部３２の外径は上スライド部材６０の下端凹部６１の内径よりも小さいので、押圧部６２は、上型３０に対しては当接せずに、その周縁に位置する胴型２０の上端面２６のみに当接する。 (5) When the mold 17 is set in the state shown in FIG. 5, the lifting mechanism 66 is driven to move the upper slide member 60 downward. When the upper slide member 60 descends, the lower surface of the pressing portion 62 comes into contact with the upper end surface 26 of the trunk die 20, and pushes the trunk die 20 downward (see FIG. 6). Since the outer diameter of the large diameter portion 32 in the upper die 30 is smaller than the inner diameter of the lower end concave portion 61 of the upper slide member 60, the pressing portion 62 does not come into contact with the upper die 30 and is located on the peripheral edge thereof. It contacts only the upper end surface 26 of the body mold 20.
　上スライド部材６０によって胴型２０が下方へ押圧移動されると、下端面２７から被規制面４４に力が伝わって下型４０が胴型２０と共に下方へ移動する。さらに、下型支持部７２上に下型４０を支持している下スライド部材７０が、胴型２０及び下型４０と共に下方へ移動する。上型３０は、胴型２０との間に作用する摺動抵抗やガラスレンズ９０への成形面３３の密着等によって、胴型２０及び下型４０に追随して下方へ移動する。なお、仮に上型３０が胴型２０及び下型４０に追随して移動しない場合でも、上スライド部材６０が所定量下方へ移動すると、下端凹部６１の底面が上型３０の上端面３５に当接して、上型３０が上スライド部材６０と共に下方へ移動される。 When the upper slide member 60 presses and moves the body mold 20 downward, a force is transmitted from the lower end surface 27 to the regulated surface 44, and the lower mold 40 moves downward together with the body mold 20. Further, the lower slide member 70 supporting the lower die 40 on the lower die support part 72 moves downward together with the trunk die 20 and the lower die 40. The upper mold 30 moves downward following the body mold 20 and the lower mold 40 due to the sliding resistance acting between the body mold 20 and the close contact of the molding surface 33 with the glass lens 90. Even if the upper die 30 does not move following the body die 20 and the lower die 40, when the upper slide member 60 moves downward by a predetermined amount, the bottom surface of the lower concave portion 61 contacts the upper end surface 35 of the upper die 30. In contact therewith, the upper die 30 is moved downward together with the upper slide member 60.
　胴型２０が下方へ所定量移動すると、図６に示すように、下端面２７（より詳しくは、下型４０の被規制面４４が当接していない径方向外側の周縁部）が、アウタスリーブ５０の規制面５４に当接して、胴型２０はそれ以上の下方への移動が規制される移動規制位置に達する。この段階で、下型４０の大径部４２が小径孔部５３内に進入している。胴型２０が移動規制位置に達したら、昇降機構６６の動作を停止させる。昇降機構６６の停止制御は任意の手法で行うことができる。例えば、昇降機構６６に予め所定の駆動量を設定しておき、駆動量が規定値に達したら昇降機構６６を停止させる。別の制御態様として、上スライド部材６０の位置を検知する位置センサを備え、上スライド部材６０が移動規制位置に達したことが検知されたら昇降機構６６を停止させてもよい。さらに別の制御態様として、制御回路により昇降機構６６の動作負荷を継続的に検知し、胴型２０が規制面５４に当接して移動規制を受けた結果として負荷変動が閾値を超えたら、昇降機構６６を停止させてもよい。 When the body mold 20 moves downward by a predetermined amount, as shown in FIG. 6, the lower end surface 27 (more specifically, a radially outer peripheral portion where the regulated surface 44 of the lower mold 40 does not abut) is brought into contact with the outer sleeve. By contacting the regulating surface 54 of the cylinder 50, the body mold 20 reaches a movement regulating position where further downward movement is regulated. At this stage, the large diameter portion 42 of the lower mold 40 has entered the small diameter hole portion 53. When the body mold 20 reaches the movement restriction position, the operation of the elevating mechanism 66 is stopped. Stop control of the elevating mechanism 66 can be performed by an arbitrary method. For example, a predetermined driving amount is set in advance in the elevating mechanism 66, and when the driving amount reaches a specified value, the elevating mechanism 66 is stopped. As another control mode, a position sensor for detecting the position of the upper slide member 60 may be provided, and when it is detected that the upper slide member 60 has reached the movement restriction position, the elevating mechanism 66 may be stopped. As still another control mode, the control circuit continuously detects the operation load of the lifting mechanism 66, and when the load variation exceeds a threshold as a result of the body mold 20 being in contact with the restriction surface 54 and being restricted, the lifting and lowering is performed. The mechanism 66 may be stopped.
　続いて、吸引源６５を駆動して、上スライド部材６０の下端凹部６１及び吸引凹部６３に吸引力を作用させる。図７に示すように、この吸引力によって、上型３０が胴型２０に対して上方に引き上げられる。このとき、成形面３３に対する凹面９１の密着によって、ガラスレンズ９０が上型３０と共に上方へ移動しようとした場合、胴型２０内の小径孔部２３と下側孔部２４の境界の段差部分にガラスレンズ９０の周縁部（凹面９１よりも外径側の部分）が当接する。すると、上方へのガラスレンズ９０の移動が規制され、小径孔部２３内まで引き上げられた上型３０の成形面３３からガラスレンズ９０が離れて、ガラスレンズ９０は下型４０の成形面４３上に保持される。上型３０は、大径部３２が下端凹部６１内に進入して下端凹部６１の底面に当接する位置で上方への移動が規制され、この状態で上型３０の上端面３５が吸引凹部６３を塞ぐ。吸引源６５を駆動させている間は、上型３０が上スライド部材６０側に吸引保持される状態が維持される。 Next, the suction source 65 is driven to apply a suction force to the lower end recess 61 and the suction recess 63 of the upper slide member 60. As shown in FIG. 7, the upper die 30 is pulled up with respect to the trunk die 20 by this suction force. At this time, if the glass lens 90 attempts to move upward together with the upper die 30 due to the close contact of the concave surface 91 with the molding surface 33, the glass lens 90 is moved to the stepped portion at the boundary between the small diameter hole 23 and the lower hole 24 in the body mold 20. The peripheral portion of the glass lens 90 (the portion on the outer diameter side than the concave surface 91) comes into contact. Then, the upward movement of the glass lens 90 is restricted, the glass lens 90 is separated from the molding surface 33 of the upper die 30 pulled up into the small-diameter hole 23, and the glass lens 90 is placed on the molding surface 43 of the lower die 40. Is held. The upper die 30 is restricted from moving upward at a position where the large diameter portion 32 enters the lower end concave portion 61 and contacts the bottom surface of the lower end concave portion 61. In this state, the upper end surface 35 of the upper die 30 is moved to the suction concave portion 63. Close up. While the suction source 65 is driven, the state where the upper die 30 is suction-held on the upper slide member 60 side is maintained.
　上型３０に対する吸引保持を解除するタイミングは任意に設定できる。例えば、本実施形態では胴型２０に対する上型３０の摺動抵抗が大きく、吸引保持を解除しても上型３０が急速に落下しにくいため、上型３０からガラスレンズ９０が外れた直後に吸引保持を解除しても、下降する上型３０がガラスレンズ９０にダメージを与えるおそれが少ない。仮に、吸引保持を解除すると上型３０が自重で胴型２０内を高速で落下する場合には、後述する下スライド部材７０の下方移動の開始後まで上型３０を吸引保持しておけば、下方に移動する上型３０がガラスレンズ９０に衝突してダメージを与えることを防止できる。 (4) The timing for releasing the suction holding from the upper mold 30 can be arbitrarily set. For example, in the present embodiment, the sliding resistance of the upper mold 30 with respect to the body mold 20 is large, and it is difficult for the upper mold 30 to drop rapidly even when the suction holding is released. Even if the suction holding is released, there is little possibility that the descending upper mold 30 will damage the glass lens 90. If the upper die 30 falls at high speed in the body die 20 by its own weight when the suction holding is released, if the upper die 30 is suction-held until the start of the downward movement of the lower slide member 70 described later, The upper mold 30 moving downward can be prevented from colliding with the glass lens 90 and causing damage.
　本実施形態における上型３０の成形面３３とガラスレンズ９０の凹面９１は成形後に密着しやすい形状であるため、吸引源６５の駆動による上型３０の引き上げ動作を行ってガラスレンズ９０を上型３０から積極的に外すようにしている。但し、成形面やレンズ面の形状等の条件によっては、上型３０に対するガラスレンズ９０の密着が生じない、あるいは生じにくい場合もある。このような場合には、図７に示す上型３０の引き上げ動作を省略することも可能である。すなわち、上スライド部材６０側の吸引手段を設けない構成を選択してもよい。 Since the molding surface 33 of the upper mold 30 and the concave surface 91 of the glass lens 90 in this embodiment have a shape that is easy to adhere to after molding, the upper mold 30 is pulled up by driving the suction source 65 to move the glass lens 90 to the upper mold. I am trying to remove it positively from 30. However, depending on conditions such as the shape of the molding surface and the lens surface, there is a case where the glass lens 90 does not or does not easily adhere to the upper mold 30. In such a case, the lifting operation of the upper die 30 shown in FIG. 7 can be omitted. That is, a configuration in which the suction means on the upper slide member 60 side is not provided may be selected.
　続いて、吸引源７４を駆動して吸引凹部７１に吸引力を作用させて、下型４０を下スライド部材７０の下型支持部７２上に吸引保持する。そして、下型４０の吸引保持を続けながら、昇降機構７６を駆動して下スライド部材７０を下方へ移動させる。すると、下型４０は、成形面４３上にガラスレンズ９０を載せた状態で、下スライド部材７０と共に下方へ移動して、胴型２０の下側孔部２４から軸部４１が離脱する。すなわち、成形型１７から下型４０が分離される。上型規制面２５と被規制面３４の関係によって、上型３０は胴型２０に対する下方への移動が規制される（図８参照）。そのため、下型４０が下方へ分離したときに、上型３０は脱落することなく胴型２０に保持される。 Next, the suction source 74 is driven to apply a suction force to the suction concave portion 71, and the lower die 40 is sucked and held on the lower die support portion 72 of the lower slide member 70. Then, while continuing the suction holding of the lower mold 40, the elevating mechanism 76 is driven to move the lower slide member 70 downward. Then, the lower mold 40 moves downward together with the lower slide member 70 while the glass lens 90 is placed on the molding surface 43, and the shaft 41 is separated from the lower hole 24 of the body mold 20. That is, the lower mold 40 is separated from the mold 17. The downward movement of the upper die 30 relative to the trunk die 20 is restricted by the relationship between the upper die regulating surface 25 and the regulated surface 34 (see FIG. 8). Therefore, when the lower mold 40 separates downward, the upper mold 30 is held by the body mold 20 without falling off.
　下型４０の軸部４１と胴型２０の下側孔部２４との間のクリアランスが極めて小さいが、下型４０を吸引しながら下スライド部材７０を移動させることによって、下型４０を下スライド部材７０に確実に追随させて型ガイド孔２１から離脱させることができる。 Although the clearance between the shaft 41 of the lower die 40 and the lower hole 24 of the body die 20 is extremely small, the lower die 40 is slid by moving the lower slide member 70 while sucking the lower die 40. The member 70 can be reliably removed from the mold guide hole 21 by following the member 70.
　下スライド部材７０を下降させる際に、何らかの原因で下型４０が下スライド部材７０に伴って下方に移動しない場合、下型４０の下端面４５が下型支持部７２から離れて吸引凹部７１に外気が流入する。すると、下型４０で塞がれていた吸引状態に比べて、吸引凹部７１や吸引通路７３内の圧力が上昇する（外気圧に近づく）。従って、この吸引経路の圧力変化に基づいて、下型４０が下スライド部材７０に伴って適切に下方に移動しているか否かを確認することができる。吸引凹部７１から吸引源７４までの吸引経路上には、このような圧力変化を検知可能な圧力センサが備えられている。仮に吸引経路で所定値以上の圧力上昇が検知された場合、胴型２０からの下型４０の引き抜き動作に何らかのエラーが生じたものとみなして、下スライド部材７０の下降を停止したり、警報で報知させたりすることができる。 If the lower mold 40 does not move downward with the lower slide member 70 for any reason when lowering the lower slide member 70, the lower end surface 45 of the lower mold 40 separates from the lower mold support portion 72 and moves to the suction recess 71. Outside air flows in. Then, the pressure in the suction concave portion 71 and the suction passage 73 increases (approaches the outside pressure) as compared with the suction state closed by the lower mold 40. Therefore, based on the pressure change in the suction path, it is possible to confirm whether or not the lower mold 40 is appropriately moving downward with the lower slide member 70. A pressure sensor capable of detecting such a pressure change is provided on a suction path from the suction recess 71 to the suction source 74. If a pressure rise equal to or more than a predetermined value is detected in the suction path, it is considered that some error has occurred in the operation of pulling out the lower mold 40 from the body mold 20, and the lowering of the lower slide member 70 is stopped or an alarm is issued. Or let you know.
　なお、胴型２０と下型４０の間の摺動抵抗が小さく、下スライド部材７０を下方に移動させる際に、下型４０が自重で下スライド部材７０に追従して移動できる場合には、吸引源７４を駆動しての吸引を行わないことも可能である。すなわち、下スライド部材７０側の吸引手段を設けない構成を選択してもよい。 When the sliding resistance between the body mold 20 and the lower mold 40 is small and the lower slide member 70 is moved downward, when the lower mold 40 can move following the lower slide member 70 by its own weight, It is also possible not to perform suction by driving the suction source 74. That is, a configuration in which the suction means on the lower slide member 70 side is not provided may be selected.
　下スライド部材７０は、アウタスリーブ５０の下部挿脱孔５７及び下部挿脱孔５８に対応する上下方向位置に下型４０上のガラスレンズ９０が達するまで下降されて停止する（図８参照）。昇降機構７６の停止制御は任意の手法で行うことができる。例えば、昇降機構７６に予め下降用の駆動量を設定しておき、駆動量が規定値に達したら昇降機構７６を停止させる。別の制御態様として、下スライド部材７０の位置を検知する位置センサを備え、下スライド部材７０が所定の移動位置に達したことが検知されたら昇降機構７６を停止させてもよい。 The lower slide member 70 is lowered and stopped until the glass lens 90 on the lower mold 40 reaches a vertical position corresponding to the lower insertion / removal hole 57 and the lower insertion / removal hole 58 of the outer sleeve 50 (see FIG. 8). Stop control of the elevating mechanism 76 can be performed by an arbitrary method. For example, a drive amount for lowering is set in the elevating mechanism 76 in advance, and when the driving amount reaches a specified value, the elevating mechanism 76 is stopped. As another control mode, a position sensor for detecting the position of the lower slide member 70 may be provided, and when it is detected that the lower slide member 70 has reached a predetermined movement position, the elevating mechanism 76 may be stopped.
　続いて、駆動機構８５を動作させ、搬入出アーム８４を下部挿脱孔５７からアウタスリーブ５０の小径孔部５３内に挿入し、レンズ保持部８６をガラスレンズ９０の上方に位置させる。そして、駆動機構８５により搬入出アーム８４を下降させ、成形済みのガラスレンズ９０をレンズ保持部８６に吸着保持させてから、搬入出アーム８４を引き上げる。 Next, the drive mechanism 85 is operated to insert the carry-in / out arm 84 from the lower insertion / removal hole 57 into the small-diameter hole 53 of the outer sleeve 50, and to position the lens holder 86 above the glass lens 90. Then, the carry-in / out arm 84 is moved down by the drive mechanism 85 so that the molded glass lens 90 is suction-held by the lens holding portion 86, and then the carry-in / out arm 84 is pulled up.
　成形型１７を用いた成形を引き続き行う場合には、図８に示すように、プリフォーム保持部８７に新たなガラスプリフォーム９５を吸着保持させておき、駆動機構８５を動作させて、プリフォーム保持部８７が下型４０の成形面４３の上方に位置するまで搬入出アーム８４をさらに挿入する。そして、駆動機構８５により搬入出アーム８４を下降させ、プリフォーム保持部８７から下型４０へガラスプリフォーム９５を受け渡して成形面４３上に載せる。この段階で、レンズ保持部８６は下部挿脱孔５８を通してアウタスリーブ５０の外側に突出しており、成形済みのガラスレンズ９０をアウタスリーブ５０の外部（図８におけるアウタスリーブ５０の左側空間）でレンズ保持部８６から取り外して回収することができる。あるいは、この段階ではガラスレンズ９０を回収せず、さらに駆動機構８５を動作させて、下部挿脱孔５７を通して搬入出アーム８４をアウタスリーブ５０の外側（図８におけるアウタスリーブ５０の右側空間）に引き戻してから、成形済みのガラスレンズ９０の回収を行ってもよい。搬入出アーム８４を用いて回収されたガラスレンズ９０は、チャンバー１８内の保管部（図示略）に保管され、成形装置１での一連の成形加工の完了後にチャンバー１８外へ搬出される。 When the molding using the molding die 17 is continuously performed, as shown in FIG. 8, a new glass preform 95 is suction-held in the preform holding portion 87 and the driving mechanism 85 is operated to operate the preform. The carry-in / out arm 84 is further inserted until the holding portion 87 is located above the molding surface 43 of the lower mold 40. Then, the loading / unloading arm 84 is lowered by the drive mechanism 85, and the glass preform 95 is transferred from the preform holding portion 87 to the lower mold 40 and is placed on the molding surface 43. At this stage, the lens holding portion 86 protrudes outside the outer sleeve 50 through the lower insertion / removal hole 58, and the molded glass lens 90 is moved outside the outer sleeve 50 (the left space of the outer sleeve 50 in FIG. 8). It can be removed from the holding part 86 and collected. Alternatively, at this stage, the glass lens 90 is not recovered, and the drive mechanism 85 is further operated to move the carry-in / out arm 84 through the lower insertion / removal hole 57 to the outside of the outer sleeve 50 (the right space of the outer sleeve 50 in FIG. 8). After being pulled back, the molded glass lens 90 may be collected. The glass lens 90 collected by using the carry-in / out arm 84 is stored in a storage unit (not shown) in the chamber 18 and is carried out of the chamber 18 after a series of forming processes in the forming apparatus 1 are completed.
　搬入出アーム８４を用いての、下型４０からのガラスレンズ９０の回収や下型４０へのガラスプリフォーム９５の設置が完了したら、昇降機構７６を駆動して図８の下降位置から下スライド部材７０及び下型４０を上方へ移動させる。下型４０が所定量上方へ移動すると、軸部４１が胴型２０の下側孔部２４内に挿入され、さらに被規制面４４が胴型２０の下端面２７に当接して、胴型２０が上型３０と共に上方へ押し上げられる。この移動により、アウタスリーブ５０の規制面５４から胴型２０の下端面２７が離れる。 When the collection of the glass lens 90 from the lower mold 40 and the installation of the glass preform 95 on the lower mold 40 using the carry-in / out arm 84 are completed, the elevating mechanism 76 is driven to slide downward from the lowered position in FIG. The member 70 and the lower mold 40 are moved upward. When the lower die 40 moves upward by a predetermined amount, the shaft 41 is inserted into the lower hole 24 of the trunk die 20, and the regulated surface 44 contacts the lower end surface 27 of the trunk die 20. Is pushed upward together with the upper mold 30. By this movement, the lower end surface 27 of the body mold 20 is separated from the regulating surface 54 of the outer sleeve 50.
　下型支持部７２の上面が上下方向で規制面５４と同じ位置に達したら、昇降機構７６を停止して、下スライド部材７０の上昇動作を完了する。また、昇降機構６６を駆動して、押圧部６２が胴型２０の上端面２６から上方へ離間する退避位置（図３及び図５参照）まで上スライド部材６０を上昇移動させる。 (4) When the upper surface of the lower die supporting portion 72 reaches the same position as the regulating surface 54 in the vertical direction, the elevating mechanism 76 is stopped, and the raising operation of the lower slide member 70 is completed. Further, the lifting mechanism 66 is driven to move the upper slide member 60 upward to a retracted position (see FIGS. 3 and 5) in which the pressing portion 62 is separated upward from the upper end surface 26 of the body mold 20.
　この段階で、分解組立装置１０は図５に示す状態に戻る。成形型１７は、下型４０の軸部４１が胴型２０の下側孔部２４に挿入された組み立て状態に復帰している。より詳しくは、上型３０と下型４０の間に成形後のガラスレンズ９０が保持されていない点が図５とは異なる。引き続き成形を行うべく成形型１７内にガラスプリフォーム９５をセッティングしている場合は、図２（Ａ）に示すように、ガラスプリフォーム９５上に成形面３３を載せた上型３０の上端面３５が、胴型２０の上端面２６よりも上方へ突出する。 で At this stage, the disassembling and assembling apparatus 10 returns to the state shown in FIG. The molding die 17 has returned to the assembled state in which the shaft 41 of the lower die 40 is inserted into the lower hole 24 of the trunk die 20. More specifically, the difference from FIG. 5 is that the glass lens 90 after molding is not held between the upper mold 30 and the lower mold 40. In the case where the glass preform 95 is set in the molding die 17 so as to continue molding, the upper end surface of the upper die 30 on which the molding surface 33 is placed on the glass preform 95 as shown in FIG. 35 protrudes upward from the upper end surface 26 of the barrel mold 20.
　続いて、アウタスリーブ５０内から成形型１７を取り出す。成形型１７の取り出しは、駆動機構８３を動作させて取出操作部材８１を図４の矢印Ｆ２方向に移動させて行う。取出操作部材８１は、押出用孔５６を通してアウタスリーブ５０の大径孔部５２内に入り、先端のＶ字状部によって胴型２０の外面を押圧する。これにより、成形型１７が上部挿脱孔５５を通してアウタスリーブ５０の外側に押し出されて、搬送テーブル１９上に載せられる。上部挿脱孔５５は、上型３０の大径部３２が胴型２０の上端面２６から突出している状態でも、成形型１７を通過させることができる上下方向の高さを有している。 Next, the mold 17 is taken out of the outer sleeve 50. The removal of the molding die 17 is performed by operating the drive mechanism 83 and moving the removal operation member 81 in the direction of arrow F2 in FIG. The removal operation member 81 enters the large-diameter hole portion 52 of the outer sleeve 50 through the extrusion hole 56, and presses the outer surface of the body mold 20 by the V-shaped portion at the tip. As a result, the molding die 17 is pushed out of the outer sleeve 50 through the upper insertion / removal hole 55 and is placed on the transport table 19. The upper insertion / removal hole 55 has a vertical height that allows the molding die 17 to pass through even when the large-diameter portion 32 of the upper die 30 projects from the upper end surface 26 of the trunk die 20.
　分解組立装置１０でガラスプリフォーム９５を内部に配置して組み立てられた成形型１７は、チャンバー１８内の移送経路（図示略）を経て供給部１１まで運ばれ、上述した一連の工程で成形加工が行われる。この移送経路は不活性ガス雰囲気のチャンバー１８内にあるため、分解及び組み立てを行った後の成形型１７周りで酸素濃度の急激な変化が生じない。また、成形加工を行っている間はチャンバー１８内が高温に保たれており、成形型１７周りで急激な温度変化（温度低下）が生じない。仮に、既存の分解組立装置において、２００℃程度の温度で分解及び組み立てを行った成形型を、そのまま常温の大気中（チャンバー外）に出すと、上型や下型に設けた離型用のコーティング層が損傷してしまう。これに対して、分解組立装置１０にて高温での分解及び組み立てを行い、引き続いてチャンバー１８内で成形型１７を循環移動させる本実施形態の成形装置１では、上型３０や下型４０のコーティング層へのダメージを抑制でき、成形型１７の耐久性を向上させることができる。 The molding die 17 assembled by disposing and assembling the glass preform 95 in the disassembly / assembly apparatus 10 is transported to the supply unit 11 via a transfer path (not shown) in the chamber 18, and is formed by the above-described series of steps. Is performed. Since this transfer path is in the chamber 18 in an inert gas atmosphere, a rapid change in the oxygen concentration does not occur around the mold 17 after disassembly and assembly. In addition, the inside of the chamber 18 is maintained at a high temperature during the molding process, and a rapid temperature change (temperature decrease) around the molding die 17 does not occur. Assuming that a mold that has been disassembled and assembled at a temperature of about 200 ° C. in an existing disassembly / assembly apparatus is directly taken out of the chamber at room temperature (outside the chamber), the mold for release provided on the upper mold and the lower mold is used. The coating layer will be damaged. On the other hand, in the forming apparatus 1 of the present embodiment in which the disassembling and assembling apparatus 10 performs disassembly and assembly at a high temperature, and subsequently circulates and moves the forming die 17 in the chamber 18, the upper and lower dies 30 and 40 are separated. Damage to the coating layer can be suppressed, and the durability of the mold 17 can be improved.
　以上の分解組立装置１０によれば、プレス成形後にガラスレンズ９０が硬化する最小限の冷却に留めた高温状態のまま成形型１７を分解してガラスレンズ９０を取り出すことができる。従って、十分に低温になるまで冷却してから成形型の分解を行うタイプの分解組立装置に比して短時間で１サイクルの成形を完了することができ、生産性が向上する。また、分解組立装置１０で再度組み立てた成形型１７を迅速に供給部１１へ搬送すれば、成形型１７がある程度高温を保ったまま次の成形サイクルに進むことができるので、第１加熱部１２や第２加熱部１３での加熱時間やエネルギー消費を低減できる。 According to the disassembly / assembly apparatus 10 described above, the molding die 17 can be disassembled and the glass lens 90 can be taken out in a high-temperature state in which the glass lens 90 hardens after press molding and is kept at a minimum cooling. Therefore, one cycle of molding can be completed in a shorter time than in a disassembly / assembly apparatus of a type in which a mold is disassembled after cooling to a sufficiently low temperature, and productivity is improved. Further, if the mold 17 reassembled by the disassembly / assembly apparatus 10 is quickly conveyed to the supply unit 11, the mold 17 can proceed to the next molding cycle while maintaining a certain high temperature. And the heating time and energy consumption in the second heating unit 13 can be reduced.
　分解組立装置１０では、いずれも耐熱性の高い金属やセラミックスで形成されたアウタスリーブ５０と上スライド部材６０と下スライド部材７０を用いることによって、高温状態での分解及び組み立てを可能としている。アウタスリーブ５０は挿入空間５１内に規制面５４を有する筒状体であり、上スライド部材６０と下スライド部材７０は挿入空間５１内にスライド可能に挿入される柱状（軸状）体であり、上スライド部材６０と下スライド部材７０の上下動によって成形型１７の分解及び組み立てを行うシンプルな構造である。別言すれば、成形型１７の各部を精密に把持しながら型抜き方向に移動させるような高価で複雑な機構を要さず、耐熱性の低い動作部分が高熱の成形型１７に接触することもない。また、アウタスリーブ５０への成形型１７やガラスレンズ９０及びガラスプリフォーム９５の挿脱は、アウタスリーブ５０の径方向側部の開口部分（上部挿脱孔５５や下部挿脱孔５７）を通して行われ、これらの開口部分に挿脱される挿入操作部材８０や取出操作部材８１や搬入出アーム８４はいずれも棒状のシンプルな構造である。従って、分解組立装置１０の各部を、耐熱性に優れる金属やセラミックスで無理なく形成することができる。 In the disassembly / assembly apparatus 10, the disassembly and assembly in a high temperature state are enabled by using the outer sleeve 50, the upper slide member 60, and the lower slide member 70, all of which are formed of metal or ceramic having high heat resistance. The outer sleeve 50 is a cylindrical body having a regulating surface 54 in the insertion space 51, and the upper slide member 60 and the lower slide member 70 are columnar (shaft) bodies slidably inserted into the insertion space 51, This is a simple structure in which the mold 17 is disassembled and assembled by the vertical movement of the upper slide member 60 and the lower slide member 70. In other words, there is no need for an expensive and complicated mechanism for moving each part of the molding die 17 in the die-drawing direction while precisely grasping the same, and an operation part having low heat resistance contacts the molding die 17 with high heat. Nor. The mold 17, the glass lens 90, and the glass preform 95 are inserted into and removed from the outer sleeve 50 through openings (upper insertion holes 55 and lower insertion holes 57) on the radial side of the outer sleeve 50. The insertion operation member 80, the extraction operation member 81, and the carry-in / out arm 84, which are inserted into and removed from these openings, all have a simple rod-like structure. Therefore, each part of the disassembling and assembling apparatus 10 can be easily formed of metal or ceramics having excellent heat resistance.
　アウタスリーブ５０に対して、径方向側部の開口部分（上部挿脱孔５５や下部挿脱孔５７）を通して成形型１７やガラスレンズ９０及びガラスプリフォーム９５を挿脱させる構成は、分解組立装置１０全体の構造簡略化や小型化の点でも優れている。すなわち、上スライド部材６０や下スライド部材７０は、胴型２０から下型４０を離脱させるための所定の可動量を有していれば良く、アウタスリーブ５０に対して上スライド部材６０や下スライド部材７０の全体を上下方向に引き抜く必要がない。従って、上下方向における分解組立装置１０の設置スペースが少なくて済むと共に、駆動量が小さいコンパクトな昇降機構６６や昇降機構７６を用いることができる。また、挿入操作部材８０、取出操作部材８１及び搬入出アーム８４は、アウタスリーブ５０の径方向に移動して成形型１７やガラスレンズ９０及びガラスプリフォーム９５を挿脱するので、これらを駆動する駆動機構８２、８３及び８５も駆動量が小さいコンパクトなものを使用できる。 The disassembling and assembling apparatus includes a configuration in which the mold 17, the glass lens 90, and the glass preform 95 are inserted into and detached from the outer sleeve 50 through the opening (upper insertion hole 55 and lower insertion hole 57) on the radial side. It is also excellent in terms of simplification of the structure of the whole 10 and miniaturization. That is, the upper slide member 60 and the lower slide member 70 only need to have a predetermined movable amount for detaching the lower die 40 from the trunk die 20. There is no need to pull out the entire member 70 in the vertical direction. Therefore, a space for installing the disassembly and assembling apparatus 10 in the vertical direction can be reduced, and a compact lifting mechanism 66 and a lifting mechanism 76 having a small driving amount can be used. Further, the insertion operation member 80, the extraction operation member 81, and the carry-in / out arm 84 move in the radial direction of the outer sleeve 50 to insert and remove the mold 17, the glass lens 90, and the glass preform 95, so that they are driven. Driving mechanisms 82, 83 and 85 can also be used with a small driving amount.
　例えば、本実施形態とは異なり、アウタスリーブ５０の上端や下端から上下方向に成形型１７等の挿脱を行わせる構造にする場合、アウタスリーブ５０から上スライド部材６０や下スライド部材７０を引き抜く必要がある。上述のように、成形型１７の精密な分解及び組み立てを行うために、アウタスリーブ５０に対する上スライド部材６０や下スライド部材７０のクリアランスは極小に設定されているので、アウタスリーブ５０に対して上スライド部材６０や下スライド部材７０を上下方向に引き抜くための装置は、長い距離に亘って非常に高い動作精度が求められる高コストなものになる。さらに、アウタスリーブ５０に対して上スライド部材６０や下スライド部材７０を上下方向に引き抜くための動作量が大きく、装置の大型化も避けられない。 For example, unlike the present embodiment, when the upper and lower slide members 60 and 70 are pulled out from the outer sleeve 50 when the upper and lower ends of the outer sleeve 50 have a structure in which the mold 17 and the like are vertically inserted and removed. There is a need. As described above, the clearance between the upper slide member 60 and the lower slide member 70 with respect to the outer sleeve 50 is set to be extremely small in order to accurately disassemble and assemble the mold 17. The device for pulling out the slide member 60 and the lower slide member 70 in the vertical direction is expensive and requires extremely high operation accuracy over a long distance. Furthermore, the amount of operation for vertically pulling out the upper slide member 60 and the lower slide member 70 with respect to the outer sleeve 50 is large, and an increase in the size of the apparatus is inevitable.
　また、本実施形態の分解組立装置１０では、下スライド部材７０の下型支持部７２への吸引によって下型４０の引き抜きを補助することで、胴型２０と下型４０の間のクリアランスが極小であるガラスレンズ成形用の成形型１７でも確実に分解することができる。吸引による下型４０の保持は、下スライド部材７０に吸引凹部７１や吸引通路７３を形成することで実現でき、これらの吸引経路によって下スライド部材７０の耐熱性が損なわれることはない。 Further, in the disassembly / assembly apparatus 10 of the present embodiment, the clearance between the body mold 20 and the lower mold 40 is minimized by assisting the removal of the lower mold 40 by suctioning the lower slide member 70 to the lower mold support portion 72. Can be reliably disassembled even with the mold 17 for molding a glass lens. The holding of the lower die 40 by suction can be realized by forming the suction recess 71 and the suction passage 73 in the lower slide member 70, and the heat resistance of the lower slide member 70 is not impaired by these suction paths.
　また、本実施形態の成形装置１では、分解組立装置１０が気密性の高いチャンバー１８内に設置されており、チャンバー１８内の酸素濃度の低い環境で成形型１７の分解と組み立てを行う。さらに、分解組立装置１０から供給部１１までの移送経路を含む成形装置１の全体がチャンバー１８内に配置されており、成形型１７を常温の外気中に出すことなく成形加工を繰り返して実行できる。これにより、上型３０の成形面３３上や下型４０の成形面４３上に形成された炭素膜等のコーティング層の劣化を抑制し、成形型１７の耐久性向上を図ることができる。 In addition, in the molding apparatus 1 of the present embodiment, the disassembling and assembling apparatus 10 is installed in the highly airtight chamber 18, and disassembles and assembles the molding die 17 in an environment with a low oxygen concentration in the chamber 18. Further, the entire molding apparatus 1 including the transfer path from the disassembly / assembly apparatus 10 to the supply unit 11 is disposed in the chamber 18, and the molding processing can be repeatedly performed without taking the molding die 17 into the outside air at room temperature. . Thereby, the deterioration of the coating layer such as the carbon film formed on the molding surface 33 of the upper mold 30 and the molding surface 43 of the lower mold 40 can be suppressed, and the durability of the molding die 17 can be improved.
　以上のように、本実施形態の成形型の分解組立装置１０及び成形装置１は、高温状態で成形型の分解及び組み立てを確実に行うことができ、ガラスレンズ９０等のガラス製光学素子の生産効率を向上させることができる。但し、本発明は上記実施形態に限定されるものではなく、発明の要旨内において様々な変更を行うことが可能である。 As described above, the mold disassembly apparatus 10 and the mold apparatus 1 of the present embodiment can reliably disassemble and assemble the mold in a high temperature state, and can produce glass optical elements such as the glass lens 90. Efficiency can be improved. However, the present invention is not limited to the above embodiments, and various changes can be made within the gist of the invention.
　例えば、上記実施形態のアウタスリーブ５０は円筒状であり、上スライド部材６０と下スライド部材７０はアウタスリーブ５０の内面形状に対応する円柱状である。分解組立装置１０における当該形状は、円筒状の外面形状を有する成形型１７をアウタスリーブ５０内に効率良く収められると共に、強度的にも優れている。しかし、成形型の外面形状が上記実施形態とは異なる場合、これに応じてアウタスリーブ５０、上スライド部材６０、下スライド部材７０をそれぞれ、円筒や円柱以外の形状（例えば角筒状や角柱状）に設定することも可能である。すなわち、アウタスリーブ５０に対して上スライド部材６０や下スライド部材７０が上述した上下動を行える関係であればよく、具体的な形状を上記実施形態に限定するものではない。 For example, the outer sleeve 50 of the above embodiment has a cylindrical shape, and the upper slide member 60 and the lower slide member 70 have a cylindrical shape corresponding to the inner surface shape of the outer sleeve 50. This shape in the disassembly / assembly apparatus 10 allows the mold 17 having a cylindrical outer surface shape to be efficiently housed in the outer sleeve 50 and is excellent in strength. However, when the outer surface shape of the molding die is different from that of the above-described embodiment, the outer sleeve 50, the upper slide member 60, and the lower slide member 70 are accordingly formed in a shape other than a cylinder or a cylinder (for example, a prismatic or prismatic shape). ) Can also be set. That is, it is sufficient that the upper slide member 60 and the lower slide member 70 can move up and down with respect to the outer sleeve 50, and the specific shape is not limited to the above embodiment.
　上述したように、成形型１７の分解途中での図７に示す上型３０の引き上げ動作は、上型３０の成形面３３へのガラスレンズ９０の貼り付きが生じにくい場合には省略することも可能である。これに応じて、上スライド部材６０側に吸引手段（下端凹部６１、吸引凹部６３、吸引通路６４、吸引源６５）を設けない構成を選択してもよい。 As described above, the lifting operation of the upper mold 30 shown in FIG. 7 during the disassembly of the molding die 17 may be omitted when it is difficult for the glass lens 90 to adhere to the molding surface 33 of the upper mold 30. It is possible. Accordingly, a configuration in which the suction means (the lower end recess 61, the suction recess 63, the suction passage 64, the suction source 65) is not provided on the upper slide member 60 side may be selected.
　上述したように、下スライド部材７０が下方に移動するときに、下型４０が自重で追随してスムーズに移動可能である場合は、下スライド部材７０への下型４０の吸引を省略することも可能である。これに応じて、下スライド部材７０側に吸引手段（吸引凹部７１、吸引通路７３、吸引源７４）を設けない構成を選択してもよい。 As described above, when the lower die 40 moves downward and the lower die 40 can move smoothly by following its own weight, the suction of the lower die 40 to the lower slide member 70 is omitted. Is also possible. Accordingly, a configuration in which the suction means (suction recess 71, suction passage 73, suction source 74) is not provided on the lower slide member 70 side may be selected.
　成形型を構成する上型と下型については、胴型の外径よりも小径であると共に、所定の挿入位置で胴型の型ガイド孔への挿入を規制されるという条件を満たしていれば、その形状等は任意に選択可能である。 The upper mold and the lower mold that constitute the forming mold are smaller in diameter than the outer diameter of the body mold and satisfy the condition that insertion into the mold guide hole of the body mold at a predetermined insertion position is regulated. , Its shape and the like can be arbitrarily selected.
　例えば、上記実施形態では、胴型２０の下端面２７に対して被規制面４４が当接して下型４０の上方への移動が規制される。これとは異なり、胴型２０の下側孔部２４内に大径部４２の一部を進入可能にさせる拡径部を備え、この拡径部の底面に下型４０の被規制面４４が当接して挿入規制されるように構成することも可能である。 For example, in the above-described embodiment, the regulated surface 44 abuts against the lower end surface 27 of the body die 20 to restrict the upward movement of the lower die 40. In contrast to this, a large-diameter portion is provided in the lower hole portion 24 of the body mold 20 to allow a part of the large-diameter portion 42 to enter, and a regulated surface 44 of the lower die 40 is provided on the bottom surface of the large-diameter portion. It is also possible to configure so that insertion is restricted by contact.
　例えば、上記実施形態では、胴型２０内の上型規制面２５に対して被規制面３４が当接して上型３０の下方への移動が規制される。これとは異なり、上側孔部２２を設けずに胴型２０の上端まで小径孔部２３が続くようにした上で、胴型２０の上端面２６のうち内径側の一部領域に対して上型３０の被規制面３４が当接して下方への移動規制を受けるように構成することも可能である。 For example, in the above embodiment, the regulated surface 34 abuts against the upper mold regulating surface 25 in the body mold 20 to restrict the downward movement of the upper mold 30. On the other hand, the small-diameter hole portion 23 continues to the upper end of the body mold 20 without providing the upper hole portion 22, and then, the upper surface 26 of the body mold 20 is raised with respect to a partial area on the inner diameter side. It is also possible to configure so that the regulated surface 34 of the mold 30 abuts and is restricted from moving downward.
　上記実施形態の成形装置１はガラスレンズ９０を製造するものであるが、レンズ以外のガラス製光学素子（例えばプリズム等）を製造する成形装置に本発明を適用することも可能である。 The molding apparatus 1 of the above embodiment is for manufacturing a glass lens 90, but the present invention can also be applied to a molding apparatus for manufacturing a glass optical element (for example, a prism or the like) other than a lens.
　本発明によれば、高温状態で成形型の分解及び組み立てを確実に行って生産性を向上させる成形型の分解組立装置及び成形装置を得ることができ、特に多数のガラス製光学素子を効率良く製造することが求められる成形装置に有用である。 According to the present invention, it is possible to obtain a mold disassembling and assembling apparatus and a molding apparatus for improving productivity by reliably disassembling and assembling a mold in a high-temperature state, and in particular, efficiently using a large number of glass optical elements. It is useful for molding equipment required to be manufactured.
１　　　：成形装置
１０　　：分解組立装置
１１　　：供給部
１２　　：第１加熱部
１３　　：第２加熱部
１４　　：プレス部
１５　　：徐冷部
１６　　：取出部
１７　　：成形型
１８　　：チャンバー
１９　　：搬送テーブル
２０　　：胴型
２１　　：型ガイド孔
３０　　：上型
３１　　：軸部
３２　　：大径部
３３　　：成形面
４０　　：下型
４１　　：軸部
４２　　：大径部
４３　　：成形面
５０　　：アウタスリーブ
５１　　：挿入空間
５２　　：大径孔部
５３　　：小径孔部
５４　　：規制面
５５　　：上部挿脱孔
５６　　：押出用孔
５７、５８　：下部挿脱孔
６０　　：上スライド部材
６１　　：下端凹部
６２　　：押圧部
６３　　：吸引凹部
６４　　：吸引通路
６５　　：吸引源
７０　　：下スライド部材
７１　　：吸引凹部
７２　　：下型支持部（支持部）
７３　　：吸引通路
７４　　：吸引源
７５　　：位置決めフランジ（位置決め部）
８０　　：挿入操作部材
８１　　：取出操作部材
８４　　：搬入出アーム
９０　　：ガラスレンズ（ガラス製光学素子）
９５　　：ガラスプリフォーム（ガラス材料） 1: Molding device 10: Disassembly / assembly device 11: Supply unit 12: First heating unit 13: Second heating unit 14: Press unit 15: Slow cooling unit 16: Extraction unit 17: Mold 18: Chamber 19: Transport table 20 : Body mold 21: mold guide hole 30: upper mold 31: shaft part 32: large diameter part 33: molding surface 40: lower mold 41: shaft part 42: large diameter part 43: molding surface 50: outer sleeve 51: insertion space 52: large-diameter hole 53: small-diameter hole 54: regulating surface 55: upper insertion / removal hole 56: extrusion holes 57, 58: lower insertion / removal hole 60: upper slide member 61: lower concave portion 62: pressing portion 63: suction Recess 64: Suction passage 65: Suction source 70: Lower slide member 71: Suction recess 72: Lower mold support (support)
73: suction passage 74: suction source 75: positioning flange (positioning portion)
80: insertion operation member 81: take-out operation member 84: carry-in / out arm 90: glass lens (glass optical element)
95: Glass preform (glass material)

Claims (7)

  1. 　上下方向に貫通する型ガイド孔を有する胴型と、
    　上方から前記型ガイド孔に挿入されて、所定の挿入位置で前記胴型に対する下方への移動を規制される、前記胴型の外径よりも小径の上型と、
    　下方から前記型ガイド孔に挿入されて、所定の挿入位置で前記胴型に対する上方への移動を規制される、前記胴型の外径よりも小径の下型と、
    を有して前記上型と前記下型を接近させて前記型ガイド孔内でガラス製光学素子をプレス成形する成形型の分解及び組み立てを行う分解組立装置であって、
    　前記胴型を挿入可能な内径の大径孔部と、前記大径孔部の下方に位置して前記下型を挿入可能で前記胴型を挿入不能な内径の小径孔部と、前記大径孔部及び前記小径孔部の間に形成されて前記胴型の下端面に対向する規制面とを有する筒状のアウタスリーブと、
    　上方から前記大径孔部に摺動可能に挿入されて、前記胴型の上端面に対向する押圧部を有する上スライド部材と、
    　下方から前記小径孔部に摺動可能に挿入されて、前記下型の下端面を支持する支持部を有する下スライド部材と、
    を備え、前記アウタスリーブと前記上スライド部材と前記下スライド部材は金属又はセラミックスからなり、
    　前記大径孔部内に前記成形型を配置した状態で、前記上スライド部材の前記押圧部により前記胴型の上端面を押圧して、前記胴型の下端面が前記規制面に当接するまで下方に移動させ、
    　前記下スライド部材を前記下型と共に下方に移動させて、前記下型を前記胴型の前記型ガイド孔から下方に離脱させることを特徴とする成形型の分解組立装置。     A trunk mold having a mold guide hole penetrating in the vertical direction,
    An upper die that is inserted into the die guide hole from above and is restricted from moving downward with respect to the trunk die at a predetermined insertion position, and has a smaller diameter than the outer diameter of the trunk die,
    A lower die that is inserted into the die guide hole from below and is restricted from moving upward with respect to the trunk die at a predetermined insertion position, and has a smaller diameter than the outer diameter of the trunk die;
    A disassembly and assembly apparatus for disassembling and assembling a mold for press-molding a glass optical element in the mold guide hole by bringing the upper mold and the lower mold closer to each other,
    A large-diameter hole having an inner diameter into which the trunk die can be inserted, a small-diameter hole located below the large-diameter hole into which the lower die can be inserted, and the trunk die cannot be inserted; A cylindrical outer sleeve having a regulating surface formed between the hole and the small-diameter hole and opposed to a lower end surface of the body mold;
    An upper slide member that is slidably inserted into the large-diameter hole portion from above and has a pressing portion facing the upper end surface of the trunk die,
    A lower slide member that is slidably inserted into the small-diameter hole portion from below and has a support portion that supports a lower end surface of the lower die;
    Comprising, the outer sleeve, the upper slide member and the lower slide member are made of metal or ceramics,
    In a state where the molding die is arranged in the large-diameter hole portion, the upper portion of the upper die is pressed by the pressing portion of the upper slide member until the lower end surface of the die contacts the regulation surface. Move to
    A disassembling and assembling apparatus for a molding die, wherein the lower slide member is moved downward together with the lower die, and the lower die is detached downward from the die guide hole of the body die.
  2. 　前記下スライド部材は、前記支持部に前記下型の下端面を吸引保持可能であり、前記下型を前記胴型の前記型ガイド孔から下方に離脱させるときに、前記下型を前記支持部に吸引しながら下方に移動する請求の範囲第１項記載の成形型の分解組立装置。 The lower slide member is capable of sucking and holding a lower end surface of the lower die on the support portion, and when the lower die is detached downward from the die guide hole of the body die, the lower die is supported by the support portion. 2. The disassembling and assembling apparatus for a molding die according to claim 1, wherein said apparatus moves downward while sucking.
  3. 　前記アウタスリーブは、前記大径孔部と外部を径方向に連通させる上部挿脱孔と、前記小径孔部と外部を径方向に連通させる下部挿脱孔とを有し、
    　前記上部挿脱孔を通して前記大径孔部に前記成形型を挿脱し、
    　前記下型が前記胴型から下方に離脱した状態で、前記下部挿脱孔を通して、前記アウタスリーブ外への成形後の前記ガラス製光学素子の搬出及び前記アウタスリーブ内への成形前のガラス材料の搬入を行う請求の範囲第１項又は第２項記載の成形型の分解組立装置。     The outer sleeve has an upper insertion / removal hole that radially communicates the large diameter hole portion and the outside, and a lower insertion / removal hole that radially communicates the small diameter hole portion and the outside,
    Inserting and removing the mold in the large-diameter hole through the upper insertion hole,
    In a state where the lower mold is detached downward from the body mold, through the lower insertion hole, carry out the glass optical element after molding outside the outer sleeve, and the glass material before molding into the outer sleeve. 3. The disassembling and assembling apparatus for a molding die according to claim 1, wherein the apparatus is carried in.
  4. 　前記下スライド部材は、前記支持部の周縁に、前記上部挿脱孔を通して前記大径孔部に挿入される前記成形型の径方向位置を定める位置決め部を備える請求の範囲第３項記載の成形型の分解組立装置。 4. The molding according to claim 3, wherein the lower slide member includes a positioning portion for determining a radial position of the molding die inserted into the large-diameter hole portion through the upper insertion / removal hole at a peripheral edge of the support portion. Mold disassembly and assembly equipment.
  5. 　前記上スライド部材は、前記押圧部の内径側に下方へ開口する下端凹部を有し、吸引によって前記上型を前記胴型に対して上方に移動させて前記上型の一部を前記下端凹部に進入させることが可能であり、
    　前記下スライド部材を前記下型と共に下方に移動させる前に、前記上型を前記下端凹部側に吸引して前記ガラス製光学素子から離間させる請求の範囲第１項又は第２項記載の成形型の分解組立装置。     The upper slide member has a lower end concave portion that opens downward on the inner diameter side of the pressing portion, and moves the upper die upward with respect to the body die by suction to partially remove the upper die with the lower concave portion. It is possible to enter
    The molding die according to claim 1 or 2, wherein the upper die is sucked toward the lower end concave portion and separated from the glass optical element before the lower slide member is moved downward together with the lower die. Disassembly and assembly equipment.
  6. 　前記分解組立装置は、不活性ガス雰囲気のチャンバー内に配置されている請求の範囲第１項又は第２項記載の成形型の分解組立装置。 (3) The disassembling and assembling apparatus for a mold according to claim 1 or 2, wherein the disassembling and assembling apparatus is arranged in a chamber in an inert gas atmosphere.
  7. 　前記成形型の前記型ガイド孔内のガラス材料をガラス転移点以上に加熱する加熱部と、
    　前記加熱部により加熱した状態で、前記上型と前記下型を接近させて前記型ガイド孔内で前記ガラス製光学素子をプレス成形させるプレス部と、
    を有し、前記加熱部と前記プレス部と前記分解組立装置の間で前記成形型を循環して移送する成形装置であって、
    　前記加熱部と前記プレス部と前記分解組立装置が不活性ガス雰囲気のチャンバー内に配置され、前記分解組立装置による前記成形型の分解及び組み立てと、前記加熱部による前記成形型の加熱と、前記プレス部による前記プレス成形とを含む一連の動作が前記チャンバー内で行われる請求の範囲第１項又は第２項記載の成形型の分解組立装置を有する成形装置。     A heating unit that heats the glass material in the mold guide hole of the mold to a temperature equal to or higher than the glass transition point,
    In the state of being heated by the heating unit, a press unit that press-molds the glass optical element in the mold guide hole by bringing the upper mold and the lower mold closer together,
    A molding device that circulates and transfers the molding die between the heating unit, the press unit, and the disassembly and assembly device,
    The heating unit, the press unit, and the disassembly / assembly device are disposed in a chamber of an inert gas atmosphere, and the disassembly and disassembly of the mold by the disassembly / assembly device, and heating of the mold by the heating unit, 3. A molding apparatus having a mold disassembly / assembling apparatus according to claim 1, wherein a series of operations including said press molding by a press section are performed in said chamber.
PCT/JP2019/026738 2018-07-10 2019-07-04 Mold disassembling/assembling device, and molding device WO2020013083A1 (en)

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JP2006273649A (en) * 2005-03-29 2006-10-12 Hoya Corp Manufacturing method of optical element and mold press forming apparatus

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114455810A (en) * 2022-02-16 2022-05-10 襄阳瓦特机电有限公司 Optical glass molding press with mold capable of being disassembled in split mode and using method thereof

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