GB1337199A - Process and apparatus for curving a sheet of glass - Google Patents

Process and apparatus for curving a sheet of glass

Info

Publication number
GB1337199A
GB1337199A GB1050971*[A GB1050971A GB1337199A GB 1337199 A GB1337199 A GB 1337199A GB 1050971 A GB1050971 A GB 1050971A GB 1337199 A GB1337199 A GB 1337199A
Authority
GB
United Kingdom
Prior art keywords
mould
sheet
cell
bending
frame
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.)
Expired
Application number
GB1050971*[A
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.)
Compagnie de Saint Gobain SA
Original Assignee
Compagnie de Saint Gobain SA
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 Compagnie de Saint Gobain SA filed Critical Compagnie de Saint Gobain SA
Publication of GB1337199A publication Critical patent/GB1337199A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B23/00—Re-forming shaped glass
    • C03B23/02—Re-forming glass sheets
    • C03B23/023—Re-forming glass sheets by bending
    • C03B23/035—Re-forming glass sheets by bending using a gas cushion or by changing gas pressure, e.g. by applying vacuum or blowing for supporting the glass while bending
    • C03B23/0352—Re-forming glass sheets by bending using a gas cushion or by changing gas pressure, e.g. by applying vacuum or blowing for supporting the glass while bending by suction or blowing out for providing the deformation force to bend the glass sheet
    • C03B23/0357—Re-forming glass sheets by bending using a gas cushion or by changing gas pressure, e.g. by applying vacuum or blowing for supporting the glass while bending by suction or blowing out for providing the deformation force to bend the glass sheet by suction without blowing, e.g. with vacuum or by venturi effect
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B23/00—Re-forming shaped glass
    • C03B23/02—Re-forming glass sheets
    • C03B23/023—Re-forming glass sheets by bending
    • C03B23/03—Re-forming glass sheets by bending by press-bending between shaping moulds

Abstract

1337199 Bending sheet glass SAINT-GOBAIN 21 April 1971 [23 April 1970] 10509/71 Heading C1M In the bending of a glass sheet, the glass sheet is heated to bending temperature and is applied to a mould of the desired shape by reducing the atmospheric pressure between the opposed surfaces of the sheet and the mould and in the region surrounding the periphery of the mould so that the sheet is applied to the mould surface. A glass sheet 1 passes on rollers 7 through a furnace 3, a bending cell 4, conditioning cell 5 and removal area 6, the rollers 7 have separate transmission systems in each section and the heating means 8, 9 in furnace 3, 12, 13 in cell 4 and not shown in cell 5 are each controlled by thermocouples 10, 11; 14, 15 and not shown, respectively. In cell 4, a mould 16 or 24 is mounted in a shroud 17 on a column 19 movable vertically by a ram 20. The shroud 17 fits over the edges of mould 16 or 24 with a small clearance and is connected by pipes 18 to a suction device. The mould 16 may also be provided with small diameter ducts 23 (Fig. 5) to its operative surface and connected by duct 21 to a suction device. The mould may be convex or concave and in each case may have a complementary frame, as frame 28 (Fig. 13) or lower mould which may be solid or with ducts to a suction device. In operation, when the sheet 1b is curved by suction between mould 16 or 24 and the sheet, the ram 20 is operated to raise the mould and a carriage 22, on its own or with the complementary frame or mould, which has been pre-heated in cell 5, is moved into cell 4 on rails 33 and the mould 16 or 24 with attached sheet lowered to close to the frame, mould or carriage 22 and suction stopped so that the curved sheet drops by gravity, with suction from the lower mould if provided. The carriage 22 is then removed through cell 5 to the removal area 6. Particularly for convex mould 24 (Fig. 13), to assist bending of the edges, the frame 28 is used to press upwards by counterweights 29 mounted on pivots 30 on the carriage 22. Rollers 7 are preferably of small diameter and made of cast silica covered by a sleeve of woven refractory fibres such as silica fibres. The moulds and frames are of castable refractory cement or similar non-deformable material.
GB1050971*[A 1970-04-23 1971-04-21 Process and apparatus for curving a sheet of glass Expired GB1337199A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7014794A FR2085464B1 (en) 1970-04-23 1970-04-23

Publications (1)

Publication Number Publication Date
GB1337199A true GB1337199A (en) 1973-11-14

Family

ID=9054469

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1050971*[A Expired GB1337199A (en) 1970-04-23 1971-04-21 Process and apparatus for curving a sheet of glass

Country Status (13)

Country Link
US (1) US3778244A (en)
JP (1) JPS5243855B1 (en)
BE (1) BE766145A (en)
BR (1) BR7102397D0 (en)
CA (1) CA964062A (en)
DE (1) DE2119699C3 (en)
ES (1) ES390445A1 (en)
FR (1) FR2085464B1 (en)
GB (1) GB1337199A (en)
LU (1) LU63039A1 (en)
NL (1) NL7105024A (en)
SE (1) SE359527B (en)
ZA (1) ZA712537B (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4252552A (en) 1979-09-25 1981-02-24 Ppg Industries, Inc. Shaping glass sheets using molds of different shapes
GB2178027A (en) * 1985-07-17 1987-02-04 Techno Glas Eng Gmbh Installation for manufacturing highly curved tempered glass sheets
CN110040946A (en) * 2019-03-13 2019-07-23 深圳市东方碳素实业有限公司 A kind of moulding process of hot bending mobile phone glass cover board
CN110040945A (en) * 2019-03-13 2019-07-23 深圳市东方碳素实业有限公司 A kind of production method of hot bending mobile phone glass cover board
CN110156308A (en) * 2019-03-25 2019-08-23 洛阳兰迪玻璃机器股份有限公司 A kind of recurvation tempered glass preforming device

Families Citing this family (80)

* Cited by examiner, † Cited by third party
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US3846104A (en) * 1973-01-10 1974-11-05 Ppg Industries Inc Handling glass sheets for shaping and cooling
CA1120725A (en) * 1978-01-25 1982-03-30 Norman C. Nitschke Apparatus for bending and tempering glass
US4282026A (en) * 1978-01-25 1981-08-04 Mcmaster Harold Apparatus for bending and tempering glass
ZA7935B (en) * 1978-01-25 1979-12-27 J Nitschke Vacuum holder system and method for use in bending glass
US4202681A (en) * 1978-01-25 1980-05-13 Mcmaster Harold Vacuum holder system and method for use in bending glass
CA1120726A (en) * 1978-05-01 1982-03-30 Harold A. Mcmaster Apparatus and method for bending glass
CA1128755A (en) * 1978-11-13 1982-08-03 Ppg Industries, Inc. Method and apparatus for shaping glass sheets by drop forming
FR2442219A1 (en) * 1978-11-27 1980-06-20 Saint Gobain BOMBING OF GLASS SHEETS
US4265650A (en) * 1979-11-02 1981-05-05 Ppg Industries, Inc. Method of bending glass sheets in unison to complicated shapes
US4290796A (en) * 1979-11-02 1981-09-22 Ppg Industries, Inc. Mold alignment means for glass sheet shaping apparatus
US4277276A (en) * 1980-03-17 1981-07-07 Ppg Industries, Inc. Method and apparatus for shaping glass sheets using deformable vacuum mold
US4349375A (en) * 1980-03-18 1982-09-14 Ppg Industries, Inc. Deformable vacuum mold for shaping glass sheets
US4360374A (en) * 1980-11-24 1982-11-23 Nitschke John Stephen Roll operator for glass sheet conveyor of bending system
US4349374A (en) * 1981-01-21 1982-09-14 Camelot Industries Corporation Method and apparatus for manufacturing glass progressive lenses
US4505671A (en) * 1981-02-17 1985-03-19 Glasstech, Inc. Glass sheet roller conveyor furnace including gas jet pump heating
US4386952A (en) * 1982-03-31 1983-06-07 Nitschke David B Glass sheet bending system utilizing gas jets
DE3300388C1 (en) * 1982-10-01 1983-12-22 Flachglas Ag, 8510 Fuerth Device for bending warm glass panes
CA1199794A (en) * 1983-05-24 1986-01-28 Ppg Industries Ohio, Inc. Arrangement of apertures for vacuum holders for shaping glass sheets
FR2587309A1 (en) * 1985-09-18 1987-03-20 Saint Gobain Vitrage DEVICE FOR PREVENTING AND TRANSFERRING GLASS SHEETS AFTER THEIR THERMAL TEMPERATURE.
US4661139A (en) * 1985-12-10 1987-04-28 Ppg Industries, Inc. Vacuum pressing of glass doublets
IE59803B1 (en) * 1986-03-14 1994-04-06 Glasstech Inc Glass sheet press bending system
FR2596750B1 (en) * 1986-04-03 1988-06-03 Saint Gobain Vitrage GLASS FORMING DEVICE
FR2596751B1 (en) * 1986-04-08 1988-06-03 Saint Gobain Vitrage GLASS FORMING DEVICE
FR2601668A1 (en) * 1986-07-16 1988-01-22 Saint Gobain Vitrage IMPROVEMENT IN THE BOMBAGE OF GLASS PLATES
FR2601667B1 (en) * 1986-07-16 1988-09-16 Saint Gobain Vitrage POSITIONING THE GLASS PLATES FOR THEIR BOMBING
DE3632556C1 (en) * 1986-09-25 1988-02-04 Ver Glaswerke Gmbh Method and device for bending a glass sheet
FR2606400B1 (en) * 1986-11-06 1989-01-13 Saint Gobain Vitrage USE OF A BOMBING / TEMPERING PLANT FOR THE MANUFACTURE OF PLANE GLASS OR, IN GENERAL, NON-BOMBED GLAZING ON SAID PLANT
FR2606399B1 (en) * 1986-11-06 1989-01-13 Saint Gobain Vitrage METHOD AND INSTALLATION FOR BOMBING GLASS PLATES, WITH HIGH CAPACITY
DE3715151A1 (en) * 1987-05-07 1988-11-17 Ver Glaswerke Gmbh METHOD AND DEVICES FOR BENDING GLASS PANES
DE3721863A1 (en) * 1987-07-02 1989-01-12 Ver Glaswerke Gmbh HOLDING DEVICE WITH SUCTION FOR GLASS DISC AND USE OF THE RETAINING DEVICE IN A METHOD FOR BENDING GLASS DISC
FR2621906B1 (en) * 1987-10-14 1990-01-26 Saint Gobain Vitrage IMPROVED GLASS TEMPERING
US5183491A (en) * 1987-10-14 1993-02-02 Saint-Gobain Recherche Material for the tempering of glass
BE1001883A5 (en) * 1987-11-06 1990-04-03 Nippon Sheet Glass Co Ltd Process for making a glass object with smooth surface.
DE3819503C1 (en) * 1988-06-08 1989-07-20 Vegla Vereinigte Glaswerke Gmbh, 5100 Aachen, De
FR2640616B1 (en) * 1988-12-21 1993-05-14 Saint Gobain Vitrage METHOD AND DEVICE FOR FORMING A GLASS SHEET
AU635723B2 (en) * 1988-12-21 1993-04-01 Saint-Gobain Vitrage International Production line for curved panes
US5213601A (en) * 1988-12-21 1993-05-25 Saint-Gobain Vitrage International Method and apparatus for producing curved panes having a two-level curving station
US5268016A (en) * 1989-07-18 1993-12-07 Saint-Gobain Vitrage International Apparatus for obtaining cambered and/or glazed glass sheets
FR2649971B1 (en) * 1989-07-18 1993-07-16 Saint Gobain Vitrage Int METHOD AND DEVICE FOR BOMBING GLASS SHEETS
CA1333220C (en) * 1989-09-28 1994-11-29 Piezo Ceram Electronique Turning hearth annular kiln for turning to a desited profile one of the blank faces of optical lenses by thermal collapse under vacuum
FR2657342B1 (en) * 1990-01-19 1993-07-16 Saint Gobain Vitrage Int METHOD AND DEVICE FOR OBTAINING BOMBED GLASS SHEETS.
US5004491A (en) * 1990-05-22 1991-04-02 Glasstech, Inc. Glass sheet forming method and apparatus utilizing lower full surface vacuum mold and upper ring mold
ES2088001T3 (en) * 1990-05-22 1996-08-01 Glasstech Inc CONFORMATION OF GLASS SHEETS HEATED BY VACUUM IMPULSES.
FR2662686B1 (en) * 1990-06-01 1992-08-21 Saint Gobain Vitrage Int METHOD AND DEVICE FOR BOMBING GLASS SHEETS.
DE4034600C1 (en) * 1990-10-31 1992-02-20 Vegla Vereinigte Glaswerke Gmbh, 5100 Aachen, De
DE4100409A1 (en) * 1991-01-09 1992-07-16 Ver Glaswerke Gmbh PLANT FOR THE PRODUCTION OF CURVED TENSIONED CAR GLASS PANELS
FR2678261B1 (en) * 1991-06-27 1994-10-21 Saint Gobain Vitrage Int METHOD AND DEVICE FOR BOMBING A GLASS SHEET.
DE4215285C1 (en) * 1992-05-09 1993-08-19 Vegla Vereinigte Glaswerke Gmbh, 5100 Aachen, De
FR2693452B1 (en) * 1992-07-09 1994-09-02 Saint Gobain Vitrage Int Method and device for supporting and transferring glass sheets in a forming cell.
DE4337559C1 (en) * 1993-11-04 1995-03-23 Ver Glaswerke Gmbh Process for bending glass sheets in pairs
GB9407610D0 (en) * 1994-04-15 1994-06-08 Pilkington Glass Ltd Bending and tempering glass sheets
FI96845C (en) * 1994-10-25 1996-09-10 Risto Nikander Method and apparatus for bending hardening of a glass sheet
DE19643935C2 (en) * 1996-10-31 1998-10-08 Sekurit Saint Gobain Deutsch Method and device for the gradual bending of glass panes
JP3925042B2 (en) * 2000-06-15 2007-06-06 坂東機工株式会社 Glass plate processing method and apparatus
DE10105200A1 (en) * 2001-02-06 2002-08-14 Saint Gobain Method and device for bending glass sheets in pairs
US6962834B2 (en) * 2002-03-22 2005-11-08 Stark David H Wafer-level hermetic micro-device packages
US7832177B2 (en) 2002-03-22 2010-11-16 Electronics Packaging Solutions, Inc. Insulated glazing units
US7437892B2 (en) * 2004-04-21 2008-10-21 Ppg Industries Ohio, Inc. Apparatus having vacuum applying facilities and method of using vacuum to bend and/or shape one or more sheets
FR2880343B1 (en) * 2004-12-31 2007-06-22 Saint Gobain PROCESS FOR BOMBING GLASS SHEETS BY SUCTION
JP2008007375A (en) * 2006-06-29 2008-01-17 Nippon Electric Glass Co Ltd Method for manufacturing glass article
US7975509B2 (en) * 2007-06-27 2011-07-12 Pilkington North America, Inc. Glass bending process
WO2009036359A1 (en) 2007-09-14 2009-03-19 Electronics Packaging Solutions, Inc. Insulating glass unit having multi-height internal standoffs and visible decoration
US8283023B2 (en) * 2008-08-09 2012-10-09 Eversealed Windows, Inc. Asymmetrical flexible edge seal for vacuum insulating glass
US8512830B2 (en) * 2009-01-15 2013-08-20 Eversealed Windows, Inc. Filament-strung stand-off elements for maintaining pane separation in vacuum insulating glazing units
US8329267B2 (en) * 2009-01-15 2012-12-11 Eversealed Windows, Inc. Flexible edge seal for vacuum insulating glazing units
FR2960232B1 (en) 2010-05-19 2015-01-02 Saint Gobain ALVEOLAR BOMBING SHAPE
WO2011153381A2 (en) 2010-06-02 2011-12-08 Eversealed Windows, Inc. Multi-pane glass unit having seal with adhesive and hermetic coating layer
US9328512B2 (en) 2011-05-05 2016-05-03 Eversealed Windows, Inc. Method and apparatus for an insulating glazing unit and compliant seal for an insulating glazing unit
EP3212584B1 (en) * 2014-10-28 2018-12-26 Saint-Gobain Glass France Bending tool for glass panes
PT3212585T (en) * 2014-10-28 2019-03-01 Saint Gobain Tool for a glass bending process
RU2677509C1 (en) 2015-08-18 2019-01-17 Сэн-Гобэн Гласс Франс Glass moulding using a fan device and method
KR102051876B1 (en) 2015-09-08 2019-12-04 쌩-고벵 글래스 프랑스 Overpressure-assisted gravity bending method and apparatus suitable therefor
TWI753864B (en) 2015-11-02 2022-02-01 美商玻璃技術股份有限公司 Mold shuttle positioning system for a glass sheet forming system
TWI752922B (en) 2015-11-02 2022-01-21 美商玻璃技術股份有限公司 Vacuum mold shuttle system for a glass sheet forming system
PL3380440T3 (en) 2015-11-25 2019-10-31 Saint Gobain Positive pressure assisted gravity bending method and device suited for carrying out this method
MX2018009161A (en) * 2016-01-28 2018-11-29 Saint Gobain Positive pressure-supported glass bending method, and device suitable for this purpose.
NO344702B1 (en) 2016-02-11 2020-03-16 Vosstech As Curing furnace and method of curing a glass object for use as a crushable, pressure-tight barrier in a well tool
FR3059318B1 (en) 2016-11-30 2021-04-02 Saint Gobain THIN GLASS BOMBAGE
WO2018122767A1 (en) 2016-12-30 2018-07-05 Agp America S.A. Method and apparatus for bending thin glass
CN112139312A (en) * 2020-09-14 2020-12-29 贵州航天天马机电科技有限公司 Aluminum alloy semi-circular pipe profiling one-step forming equipment and method

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US787438A (en) * 1904-03-30 1905-04-18 William Cutler Mold for bending and shaping sheet-glass, &c.
US2442338A (en) * 1944-05-25 1948-06-01 Gustave W Borkland Apparatus for and method of forming sheet material
US3455672A (en) * 1966-11-28 1969-07-15 Ppg Industries Inc Apparatus for shaping and tempering glass sheets with means to transport the sheets therebetween
US3607187A (en) * 1969-01-08 1971-09-21 Permaglass Method and apparatus for reshaping glass sheets

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4252552A (en) 1979-09-25 1981-02-24 Ppg Industries, Inc. Shaping glass sheets using molds of different shapes
GB2178027A (en) * 1985-07-17 1987-02-04 Techno Glas Eng Gmbh Installation for manufacturing highly curved tempered glass sheets
US4723983A (en) * 1985-07-17 1988-02-09 Techno Glas Engineering Gmbh Apparatus for producing highly curved sheets of glass
GB2178027B (en) * 1985-07-17 1989-05-04 Techno Glas Eng Gmbh Installation for manufacturing highly curved tempered glass sheets
CN110040946A (en) * 2019-03-13 2019-07-23 深圳市东方碳素实业有限公司 A kind of moulding process of hot bending mobile phone glass cover board
CN110040945A (en) * 2019-03-13 2019-07-23 深圳市东方碳素实业有限公司 A kind of production method of hot bending mobile phone glass cover board
CN110040946B (en) * 2019-03-13 2023-05-26 深圳市东方碳素实业有限公司 Forming process of glass cover plate of hot-bending mobile phone
CN110040945B (en) * 2019-03-13 2023-06-30 深圳市东方碳素实业有限公司 Manufacturing method of glass cover plate of hot-bending mobile phone
CN110156308A (en) * 2019-03-25 2019-08-23 洛阳兰迪玻璃机器股份有限公司 A kind of recurvation tempered glass preforming device
CN110156308B (en) * 2019-03-25 2023-09-22 洛阳兰迪玻璃机器股份有限公司 Reverse bending toughened glass tabletting device

Also Published As

Publication number Publication date
FR2085464A1 (en) 1971-12-24
BR7102397D0 (en) 1973-04-26
CA964062A (en) 1975-03-11
BE766145A (en) 1971-10-22
DE2119699A1 (en) 1971-11-04
ZA712537B (en) 1972-04-26
ES390445A1 (en) 1973-06-01
JPS5243855B1 (en) 1977-11-02
US3778244A (en) 1973-12-11
NL7105024A (en) 1971-10-26
LU63039A1 (en) 1972-03-02
SE359527B (en) 1973-09-03
DE2119699C3 (en) 1979-05-10
DE2119699B2 (en) 1978-09-07
FR2085464B1 (en) 1974-08-09

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PE20 Patent expired after termination of 20 years