CA2139678A1 - Method and apparatus for processing a glass sheet - Google Patents

Method and apparatus for processing a glass sheet

Info

Publication number
CA2139678A1
CA2139678A1 CA2139678A CA2139678A CA2139678A1 CA 2139678 A1 CA2139678 A1 CA 2139678A1 CA 2139678 A CA2139678 A CA 2139678A CA 2139678 A CA2139678 A CA 2139678A CA 2139678 A1 CA2139678 A1 CA 2139678A1
Authority
CA
Canada
Prior art keywords
sheet
station
shaping
glass sheet
shaping station
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
CA2139678A
Other languages
French (fr)
Other versions
CA2139678C (en
Inventor
Robert George Frank
James Howard Schwartz
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.)
PPG Industries Ohio Inc
Original Assignee
Ppg Industries Ohio, Inc.
Robert George Frank
James Howard Schwartz
Ppg Industries, Inc.
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 Ppg Industries Ohio, Inc., Robert George Frank, James Howard Schwartz, Ppg Industries, Inc. filed Critical Ppg Industries Ohio, Inc.
Publication of CA2139678A1 publication Critical patent/CA2139678A1/en
Application granted granted Critical
Publication of CA2139678C publication Critical patent/CA2139678C/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
    • 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
    • C03B23/025—Re-forming glass sheets by bending by gravity
    • C03B23/0256—Gravity bending accelerated by applying mechanical forces, e.g. inertia, weights or local forces
    • 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
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B27/00—Tempering or quenching glass products
    • C03B27/04—Tempering or quenching glass products using gas
    • C03B27/0404—Nozzles, blow heads, blowing units or their arrangements, specially adapted for flat or bent glass sheets
    • C03B27/0408—Nozzles, blow heads, blowing units or their arrangements, specially adapted for flat or bent glass sheets being dismountable
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B27/00—Tempering or quenching glass products
    • C03B27/04—Tempering or quenching glass products using gas
    • C03B27/044—Tempering or quenching glass products using gas for flat or bent glass sheets being in a horizontal position
    • C03B27/0442—Tempering or quenching glass products using gas for flat or bent glass sheets being in a horizontal position for bent glass sheets
    • C03B27/0445—Tempering or quenching glass products using gas for flat or bent glass sheets being in a horizontal position for bent glass sheets the quench unit being adapted to the bend of the sheet

Abstract

The present invention provides a glass sheet shaping arrangement whereby a glass sheet may be conveyed through a shaping station without being shaped and deposited into a glass collector beneath an upstream portion of the adjacent quench without impacting the lower quench or interfering with the operation of the quench. A furnace, shaping station and cooling station are all linearly aligned so that a glass sheet progresses through the glass sheet shaping arrangement without changing its advancing direction. A glass sheet is conveyed in a first direction along a first generally horizontal plane through the furnace to heat the sheet to its heat softening temperature. The sheet continues into the shaping station where it is lifted into engagement with an upper vacuum surface. A ring member moves along a second generally horizontal plane in a direction which is linearly aligned with the first direction, from a first position between an upper and lower quench in the cooling station to a second position within the shaping station beneath the upper vacuum surface. Vacuum is terminated along the upper surface, depositing the sheet on the ring. The shaped sheet is cooled by moving the ring from the second position within the shaping station along the second plane to the first position within the cooling station. The second plane is vertically offset relative to the first plane such that the first planeis beneath a portion of the lower quench which is immediately adjacent the shaping station. With this arrangement, the glass sheets may be conveyed through the shaping station and into the collector without interfering with any further production.
CA002139678A 1994-01-07 1995-01-06 Method and apparatus for processing a glass sheet Expired - Fee Related CA2139678C (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US08/178,978 US5470366A (en) 1994-01-07 1994-01-07 Method and apparatus for processing a glass sheet
US178,978 1994-01-07

Publications (2)

Publication Number Publication Date
CA2139678A1 true CA2139678A1 (en) 1995-07-08
CA2139678C CA2139678C (en) 1999-05-04

Family

ID=22654710

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002139678A Expired - Fee Related CA2139678C (en) 1994-01-07 1995-01-06 Method and apparatus for processing a glass sheet

Country Status (4)

Country Link
US (1) US5470366A (en)
CA (1) CA2139678C (en)
FR (1) FR2714904B1 (en)
IT (1) IT1272868B (en)

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3846104A (en) * 1973-01-10 1974-11-05 Ppg Industries Inc Handling glass sheets for shaping and cooling
US4297118A (en) * 1980-03-18 1981-10-27 Ppg Industries, Inc. Controlling overheating of vacuum mold used to shape glass sheets
US4711653A (en) * 1986-12-29 1987-12-08 Ppg Industries, Inc. Innovative press bending of thermoplastic sheets
DE3715151A1 (en) * 1987-05-07 1988-11-17 Ver Glaswerke Gmbh METHOD AND DEVICES FOR BENDING GLASS PANES
US4830650A (en) * 1988-01-04 1989-05-16 Ppg Industries, Inc. Flexible ring mold and method of use
DE3822639C1 (en) * 1988-07-05 1990-01-11 Vegla Vereinigte Glaswerke Gmbh, 5100 Aachen, De
AU635723B2 (en) * 1988-12-21 1993-04-01 Saint-Gobain Vitrage International Production line for curved panes
DE3908644C1 (en) * 1989-03-16 1990-03-29 Vegla Vereinigte Glaswerke Gmbh, 5100 Aachen, De

Also Published As

Publication number Publication date
CA2139678C (en) 1999-05-04
US5470366A (en) 1995-11-28
ITMI950018A1 (en) 1996-07-05
ITMI950018A0 (en) 1995-01-05
IT1272868B (en) 1997-07-01
FR2714904B1 (en) 1997-10-17
FR2714904A1 (en) 1995-07-13

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Legal Events

Date Code Title Description
EEER Examination request
MKLA Lapsed