BRPI0513302A - Deflection measurement method of a glass panel - Google Patents

Deflection measurement method of a glass panel

Info

Publication number
BRPI0513302A
BRPI0513302A BRPI0513302-5A BRPI0513302A BRPI0513302A BR PI0513302 A BRPI0513302 A BR PI0513302A BR PI0513302 A BRPI0513302 A BR PI0513302A BR PI0513302 A BRPI0513302 A BR PI0513302A
Authority
BR
Brazil
Prior art keywords
glass panel
measuring
distance
deflection
measurement method
Prior art date
Application number
BRPI0513302-5A
Other languages
Portuguese (pt)
Inventor
Toivo Janhunen
Original Assignee
Tamglass Ltd Oy
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 Tamglass Ltd Oy filed Critical Tamglass Ltd Oy
Publication of BRPI0513302A publication Critical patent/BRPI0513302A/en

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
    • C03B23/025—Re-forming glass sheets by bending by gravity
    • C03B23/0258—Gravity bending involving applying local or additional heating, cooling or insulating means
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B29/00—Reheating glass products for softening or fusing their surfaces; Fire-polishing; Fusing of margins
    • C03B29/04—Reheating glass products for softening or fusing their surfaces; Fire-polishing; Fusing of margins in a continuous way
    • C03B29/06—Reheating glass products for softening or fusing their surfaces; Fire-polishing; Fusing of margins in a continuous way with horizontal displacement of the products
    • C03B29/08—Glass sheets
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B11/00—Measuring arrangements characterised by the use of optical techniques
    • G01B11/24—Measuring arrangements characterised by the use of optical techniques for measuring contours or curvatures

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Length Measuring Devices By Optical Means (AREA)
  • Re-Forming, After-Treatment, Cutting And Transporting Of Glass Products (AREA)
  • Length Measuring Devices With Unspecified Measuring Means (AREA)

Abstract

MéTODO DE MEDIçãO DA DEFLEXãO DE UM PAINEL DE VIDRO A presente invenção refere-se a um método de medição da deflexão de um painel de vidro (6) no processo de curvatura de um painel de vidro (6) em um molde em anel (4). O método compreende a medição da deflexão em um ponto de medição do painel de vidro e os dados da medição são aplicados para controlar o progresso do processo de curvatura, especialmente o aquecimento do painel de vidro (6) ou o cancelamento do processo de curvatura. Um plano de referência (5a, 5b) estacionário em relação ao molde em anel (4) é estabelecido, uma sonda de distância (7, 70) é usada para a medição de uma distância entre o ponto de medição do painel de vidro (6) e uma sonda de distância (7, 70). A deflexão do painel de vidro (6) é determinada comparando-se a distância entre o plano de referência (5a, 5b) e a sonda de distância (7, 70) à distância entre o ponto de medição do painel de vidro (6) e a sonda de distância (7, 70).METHOD OF MEASURING A GLASS PANEL DEFLECTION The present invention relates to a method of measuring the deflection of a glass panel (6) in the process of bending a glass panel (6) into a ring mold (4). ). The method comprises measuring deflection at a glass panel measuring point and measuring data is applied to control the progress of the bending process, especially heating the glass panel (6) or canceling the bending process. A stationary reference plane (5a, 5b) relative to the ring mold (4) is established, a distance probe (7, 70) is used for measuring a distance between the glass panel measuring point (6). ) and a distance probe (7, 70). The deflection of the glass panel (6) is determined by comparing the distance between the reference plane (5a, 5b) and the distance probe (7, 70) to the distance between the measuring point of the glass panel (6). and the distance probe (7, 70).

BRPI0513302-5A 2004-07-14 2005-06-30 Deflection measurement method of a glass panel BRPI0513302A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FI20045273A FI118273B (en) 2004-07-14 2004-07-14 Method for measuring the bending resistance of the glass sheet
PCT/FI2005/050261 WO2006005805A1 (en) 2004-07-14 2005-06-30 Method for measuring the sagging of a glass panel

Publications (1)

Publication Number Publication Date
BRPI0513302A true BRPI0513302A (en) 2008-05-06

Family

ID=32749265

Family Applications (1)

Application Number Title Priority Date Filing Date
BRPI0513302-5A BRPI0513302A (en) 2004-07-14 2005-06-30 Deflection measurement method of a glass panel

Country Status (8)

Country Link
EP (1) EP1769218A1 (en)
JP (1) JP2008506938A (en)
CN (1) CN1985148A (en)
BR (1) BRPI0513302A (en)
CA (1) CA2573608A1 (en)
FI (1) FI118273B (en)
RU (1) RU2007105502A (en)
WO (1) WO2006005805A1 (en)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE112007003454A5 (en) * 2007-02-11 2010-01-21 Dieter Pfaltz Curved and cast resin laminated safety glass and the process of making this safety glass
CN102589445A (en) * 2012-03-05 2012-07-18 南京三埃工控股份有限公司 Sag detection method and device of belt
CN103063383B (en) * 2013-01-10 2017-07-11 芜湖东旭光电科技有限公司 A kind of deflection measuring apparatus of flat display substrate glass
CN103439477B (en) * 2013-08-30 2015-06-24 成都中光电科技有限公司 Glass droop testing platform
CN104296674A (en) * 2014-11-03 2015-01-21 苏州精创光学仪器有限公司 Method for measuring automatic warp degree of glass panel
US10794686B2 (en) * 2017-02-09 2020-10-06 Laitram, L.L.C. Apparatus and methods for measuring belts
CN109579773B (en) * 2019-01-15 2020-10-27 蚌埠翰邦知识产权服务有限公司 A kind of glass deformation measurement method
CN110553592A (en) * 2019-09-02 2019-12-10 蚌埠中光电科技有限公司 Method for measuring sag of advanced TFT (thin film transistor) substrate glass
US20220176495A1 (en) * 2020-12-04 2022-06-09 Lawrence Livermore National Security, Llc System and method for radius of curvature modification of optical plates and lenses by irradiation with optical energy

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4158507A (en) * 1977-07-27 1979-06-19 Recognition Equipment Incorporated Laser measuring system for inspection
JPS5520424A (en) * 1978-08-01 1980-02-13 Asahi Glass Co Ltd Flexion measuring method in bending process of glass plate
US4735508A (en) * 1986-06-02 1988-04-05 Honeywell Inc. Method and apparatus for measuring a curvature of a reflective surface
JPH03501058A (en) * 1988-08-26 1991-03-07 リビー‐オーウェンズ‐フォード・カンパニー Apparatus and method for inspecting plate glass
US4979920A (en) * 1989-08-23 1990-12-25 Thomson Consumer Electronics, Inc. System for measuring Q spacing in a kinescope panel
FI912871L (en) * 1991-06-14 1992-12-15 Tamglass Eng Oy FOERFARANDE FOER BOEJNING AV GLASSKIVOR
FI89583C (en) * 1991-10-22 1994-07-06 Tamglass Eng Oy Method and apparatus for measuring the degree of bending of a glass sheet a
US5781302A (en) * 1996-07-22 1998-07-14 Geneva Steel Non-contact shape meter for flatness measurements
NL1009364C2 (en) * 1998-06-10 1999-12-13 Road Ware B V Device for determining a profile of a road surface.

Also Published As

Publication number Publication date
CN1985148A (en) 2007-06-20
CA2573608A1 (en) 2006-01-19
FI20045273L (en) 2006-01-15
EP1769218A1 (en) 2007-04-04
RU2007105502A (en) 2008-08-20
FI20045273A0 (en) 2004-07-14
JP2008506938A (en) 2008-03-06
FI118273B (en) 2007-09-14
WO2006005805A1 (en) 2006-01-19

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Legal Events

Date Code Title Description
B08F Application dismissed because of non-payment of annual fees [chapter 8.6 patent gazette]

Free format text: REFERENTE AS 5A, 6A E 7A ANUIDADES.

B08K Patent lapsed as no evidence of payment of the annual fee has been furnished to inpi [chapter 8.11 patent gazette]

Free format text: REFERENTE AO DESPACHO 8.6 PUBLICADO NA RPI 2158 DE 15/05/2012.