JPS6445734A - Press molding apparatus for glass lens - Google Patents

Press molding apparatus for glass lens

Info

Publication number
JPS6445734A
JPS6445734A JP20239387A JP20239387A JPS6445734A JP S6445734 A JPS6445734 A JP S6445734A JP 20239387 A JP20239387 A JP 20239387A JP 20239387 A JP20239387 A JP 20239387A JP S6445734 A JPS6445734 A JP S6445734A
Authority
JP
Japan
Prior art keywords
central part
temperature
die
plates
molds
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
JP20239387A
Other languages
Japanese (ja)
Other versions
JPH0712945B2 (en
Inventor
Kichizo Komiyama
Hisataka Sugiyama
Kotei Iwata
Toshio Kashiwagi
Shinji Namita
Hideki Komiya
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hoya Corp
Shibaura Machine Co Ltd
Original Assignee
Hoya Corp
Toshiba Machine Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Hoya Corp, Toshiba Machine Co Ltd filed Critical Hoya Corp
Priority to JP20239387A priority Critical patent/JPH0712945B2/en
Publication of JPS6445734A publication Critical patent/JPS6445734A/en
Publication of JPH0712945B2 publication Critical patent/JPH0712945B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B11/00—Pressing molten glass or performed glass reheated to equivalent low viscosity without blowing
    • C03B11/12—Cooling, heating, or insulating the plunger, the mould, or the glass-pressing machine; cooling or heating of the glass in the mould
    • C03B11/122—Heating
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B11/00—Pressing molten glass or performed glass reheated to equivalent low viscosity without blowing
    • C03B11/06—Construction of plunger or mould
    • C03B11/08—Construction of plunger or mould for making solid articles, e.g. lenses
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B11/00—Pressing molten glass or performed glass reheated to equivalent low viscosity without blowing
    • C03B11/12—Cooling, heating, or insulating the plunger, the mould, or the glass-pressing machine; cooling or heating of the glass in the mould
    • C03B11/125—Cooling
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B2215/00—Press-moulding glass
    • C03B2215/80—Simultaneous pressing of multiple products; Multiple parallel moulds

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Re-Forming, After-Treatment, Cutting And Transporting Of Glass Products (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)

Abstract

PURPOSE:To obtain the titled molding apparatus uniformalized in temperature distribution of cavity part, by joining a heating and cooling component to central part of die plate rear facing into a heat insulation ring adjacent to near outer periphery of rear of die plate. CONSTITUTION:These temperature distributions in case of heating upper and lower both die plates 13 and 14 and upper and lower both mold 15 and 16 with an induction heat coil are shown in the following temperature curve B. But cavities 17a and 18a can be uniformly heated, because central part having low temperature is heated by heat pipes 19 and 20 and temperature distribution in the radius direction of die plates 13 and 14 is uniformalized. In cooling of the die plates and molds, induction heating is stopped and feed amount of inert gas from inlet ports 8, 9a and 10a is increased and outer periphery side of die plates 13 and 14 and molds 15 and 16 and rear of die plate 13 are cooled. Since during cooling rear central part of the plates 13 and 14 which cope with central part of the molds difficult to cool is cooled with pipes 19 and 20 for removing heat with an inert gas fed, the above-mentioned cooling can be carried out while uniformly maintaining the temperature of the cavity part.
JP20239387A 1987-08-13 1987-08-13 Glass lens press molding equipment Expired - Fee Related JPH0712945B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP20239387A JPH0712945B2 (en) 1987-08-13 1987-08-13 Glass lens press molding equipment

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP20239387A JPH0712945B2 (en) 1987-08-13 1987-08-13 Glass lens press molding equipment

Publications (2)

Publication Number Publication Date
JPS6445734A true JPS6445734A (en) 1989-02-20
JPH0712945B2 JPH0712945B2 (en) 1995-02-15

Family

ID=16456750

Family Applications (1)

Application Number Title Priority Date Filing Date
JP20239387A Expired - Fee Related JPH0712945B2 (en) 1987-08-13 1987-08-13 Glass lens press molding equipment

Country Status (1)

Country Link
JP (1) JPH0712945B2 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0920523A (en) * 1995-06-30 1997-01-21 Toshiba Glass Co Ltd Metallic mold for forming glass
US6823697B2 (en) 2000-06-27 2004-11-30 Toshiba Machine Co., Ltd. Press forming machine for optical devices

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0920523A (en) * 1995-06-30 1997-01-21 Toshiba Glass Co Ltd Metallic mold for forming glass
US6823697B2 (en) 2000-06-27 2004-11-30 Toshiba Machine Co., Ltd. Press forming machine for optical devices

Also Published As

Publication number Publication date
JPH0712945B2 (en) 1995-02-15

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Legal Events

Date Code Title Description
LAPS Cancellation because of no payment of annual fees