WO2008155458A1 - Arching-ready support assembly for glass panels - Google Patents

Arching-ready support assembly for glass panels Download PDF

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Publication number
WO2008155458A1
WO2008155458A1 PCT/FI2008/050359 FI2008050359W WO2008155458A1 WO 2008155458 A1 WO2008155458 A1 WO 2008155458A1 FI 2008050359 W FI2008050359 W FI 2008050359W WO 2008155458 A1 WO2008155458 A1 WO 2008155458A1
Authority
WO
WIPO (PCT)
Prior art keywords
support assembly
arching
section
conveyor
link
Prior art date
Application number
PCT/FI2008/050359
Other languages
French (fr)
Inventor
Pete Harjunen
Original Assignee
Glaston Corporation
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 Glaston Corporation filed Critical Glaston Corporation
Priority to CN200880020848A priority Critical patent/CN101730666A/en
Priority to CA002689138A priority patent/CA2689138A1/en
Publication of WO2008155458A1 publication Critical patent/WO2008155458A1/en

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B35/00—Transporting of glass products during their manufacture, e.g. hot glass lenses, prisms
    • C03B35/14—Transporting hot glass sheets or ribbons, e.g. by heat-resistant conveyor belts or bands
    • C03B35/16—Transporting hot glass sheets or ribbons, e.g. by heat-resistant conveyor belts or bands by roller conveyors
    • C03B35/162—Transporting hot glass sheets or ribbons, e.g. by heat-resistant conveyor belts or bands by roller conveyors combined with means for thermal adjustment of the rollers, e.g. cooling
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B35/00—Transporting of glass products during their manufacture, e.g. hot glass lenses, prisms
    • C03B35/14—Transporting hot glass sheets or ribbons, e.g. by heat-resistant conveyor belts or bands
    • C03B35/16—Transporting hot glass sheets or ribbons, e.g. by heat-resistant conveyor belts or bands by roller conveyors
    • C03B35/18—Construction of the conveyor rollers ; Materials, coatings or coverings thereof
    • C03B35/182—Construction of the conveyor rollers ; Materials, coatings or coverings thereof specially adapted for bent sheets or ribbons
    • 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
    • C03B23/0252—Re-forming glass sheets by bending by gravity by gravity only, e.g. sagging
    • C03B23/0254—Re-forming glass sheets by bending by gravity by gravity only, e.g. sagging in a continuous way, e.g. gravity roll bending
    • 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
    • C03B23/033—Re-forming glass sheets by bending by press-bending between shaping moulds in a continuous way, e.g. roll forming, or press-roll bending
    • 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
    • C03B27/0422—Tempering or quenching glass products using gas for flat or bent glass sheets starting in an horizontal position and ending in a non-horizontal position
    • C03B27/0426—Tempering or quenching glass products using gas for flat or bent glass sheets starting in an horizontal position and ending in a non-horizontal position for bent glass sheets
    • C03B27/0435—Tempering or quenching glass products using gas for flat or bent glass sheets starting in an horizontal position and ending in a non-horizontal position for bent glass sheets the quench unit being variably adaptable to the bend of the sheet
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B35/00—Transporting of glass products during their manufacture, e.g. hot glass lenses, prisms
    • C03B35/14—Transporting hot glass sheets or ribbons, e.g. by heat-resistant conveyor belts or bands
    • C03B35/16—Transporting hot glass sheets or ribbons, e.g. by heat-resistant conveyor belts or bands by roller conveyors
    • C03B35/166—Transporting hot glass sheets or ribbons, e.g. by heat-resistant conveyor belts or bands by roller conveyors specially adapted for both flat and bent sheets or ribbons

Definitions

  • the invention relates to an arching-ready support assembly in a bending and/or tempering compartment for glass panels, said support assembly comprising a number of link bodies, which are connected to each other with articulated axles, and control link mechanisms present between the link bodies, which control arching of the support assembly to a constant-radius curve.
  • This type of support assembly is known from the Applicant's patent publication EP-I 385 795. This support assembly has proved highly useful.
  • An object of the invention is to improve this support assembly further so as to enable the arching of even long support assemblies to a precisely constant-radius curvature by means of simple and inexpensive actuators without the link gaps becoming an adverse factor or even to enable using the link gaps for providing very slight intentional curvature deviations.
  • Fig. 1 shows a support assembly of the invention and its arching apparatus in a side view
  • Fig. 2 shows more closely a portion of the support assembly in a side view
  • Fig. 3 shows the support assembly of fig. 2 in a straightened configuration.
  • Fig. 1 shows, on the left-hand side of a vertical line 6, a bending conveyor's support assembly 4 and, on the right-hand side, a tempering conveyor's support assembly 5.
  • the support assemblies 4, 5 are associated with each other without a mechanical coupling at an articulation point 6a, whereby the support assemblies 4 and 5 can be disengaged from each other as desired.
  • the articulation point 6a between the support assemblies 4 and 5 remains stationary, whereby the support assembly's 4 upstream end and the support assembly's 5 downstream end can be lifted and lowered for bringing the support assembly to a desired curvature and to a straight configuration.
  • the support assemblies 4 and 5 enable supporting the conveyor rolls of a bending conveyor and a tempering conveyor.
  • the support assemblies 4 and 5 include link bodies 9 present on the sides of the conveyors, i.e. at both ends of the rolls, which are provided with bearings for the conveyor rolls.
  • the link bodies 9, on the other hand, are connected to each other by a link mechanism shown in figs. 2 and 3, which forces the link bodies 9 to pivot relative to each other to an equal extent as the support assembly 4, 5 is being arched.
  • the link mechanism associated with each link body 9 includes three articulated arms 1, 2, 3, which couple each time three link bodies 9 with each other, such that the link bodies 9 are forced to pivot to a mutually equal extent, whereby the entire support assembly arches to a constant- radius curvature.
  • the disposition of articulation points for the articulated arms 1, 2, 3 has been described in more detail in patent publication EP-I 385 795 (Bl) and, hence, not discussed further in this specification.
  • Fig. 1 shows a servomotor 10, which by way of a clutch operates a ball screw 10a, which in turn pushes and/or pivots a lever system 11, upon which rests the support assembly established by the link bodies 9.
  • the support assembly 4 has its radius of curvature Rl adjustable by means of the servomotor 10.
  • the arching mechanism for the tempering conveyor's support assembly 5 includes a servomotor SMl and a ball screw 12a operated thereby, which, through the intermediary of arms 12b, arches a bridge established by the link bodies 9 and thereby an entire conveyor carried by the support assembly 5.
  • the arms 12b engage the support assembly 5 at a small distance from its ends.
  • a second servomotor SM2 uses a herringbone gear 16 to operate ball screws 17, which engage the support assembly 5 at its opposite outer ends.
  • the servomotors SMl and SM2 are operatively synchronized by means of an electrical gearbox to enable arching the support assembly 5 to the same radius of curvature.
  • the arching-ready support assembly 5 has its first section in the support assembly's middle portion and its second section in the support assembly's end portions.
  • the discussed support assembly 5 is preferably a tempering conveyor's support assembly, which is typically longer than the bending conveyor's support assembly 4.
  • the tempering conveyor's support assembly 5 is preceded by the bending conveyor's support assembly 4, which has its own separate servo drive 10, 10a, 11 for arching the support assembly 4 to a constant-radius curvature Rl.
  • the gaps of the link mechanisms can be controlled also in this instance in such a way that the support assembly 4 can always be arched with a desired radius of curvature.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Re-Forming, After-Treatment, Cutting And Transporting Of Glass Products (AREA)
  • Heat Treatment Of Articles (AREA)
  • Support Of The Bearing (AREA)

Abstract

The invention relates to an arching-ready support assembly (5) in a bending and/or tempering compartment for glass panels. The support assembly comprises a number of link bodies (9), which are connected to each other with articulated axles (9a). Between the link bodies (9) are control link mechanisms (1, 2, 3), which control arching of the support assembly (5) to a constant-radius curve. A first section of the support assembly (5) is adapted to be arched by a first servomotor (SM1) and a second section by a second servomotor (SM2).

Description

ARCHING-READY SUPPORT ASSEMBLY FOR GLASS PANELS
The invention relates to an arching-ready support assembly in a bending and/or tempering compartment for glass panels, said support assembly comprising a number of link bodies, which are connected to each other with articulated axles, and control link mechanisms present between the link bodies, which control arching of the support assembly to a constant-radius curve.
This type of support assembly is known from the Applicant's patent publication EP-I 385 795. This support assembly has proved highly useful. An object of the invention is to improve this support assembly further so as to enable the arching of even long support assemblies to a precisely constant-radius curvature by means of simple and inexpensive actuators without the link gaps becoming an adverse factor or even to enable using the link gaps for providing very slight intentional curvature deviations.
This object is achieved by the invention on the basis of the characterizing features presented in the appended claim 1. Preferred embodiments of the invention are presented in the dependent claims.
The invention will now be described in more detail by way of a working example with reference to the accompanying drawings, in which
Fig. 1 shows a support assembly of the invention and its arching apparatus in a side view;
Fig. 2 shows more closely a portion of the support assembly in a side view; and
Fig. 3 shows the support assembly of fig. 2 in a straightened configuration. Fig. 1 shows, on the left-hand side of a vertical line 6, a bending conveyor's support assembly 4 and, on the right-hand side, a tempering conveyor's support assembly 5. The support assemblies 4, 5 are associated with each other without a mechanical coupling at an articulation point 6a, whereby the support assemblies 4 and 5 can be disengaged from each other as desired. The articulation point 6a between the support assemblies 4 and 5 remains stationary, whereby the support assembly's 4 upstream end and the support assembly's 5 downstream end can be lifted and lowered for bringing the support assembly to a desired curvature and to a straight configuration. The support assemblies 4 and 5 enable supporting the conveyor rolls of a bending conveyor and a tempering conveyor. The support assemblies 4 and 5 include link bodies 9 present on the sides of the conveyors, i.e. at both ends of the rolls, which are provided with bearings for the conveyor rolls. The link bodies 9, on the other hand, are connected to each other by a link mechanism shown in figs. 2 and 3, which forces the link bodies 9 to pivot relative to each other to an equal extent as the support assembly 4, 5 is being arched. The link mechanism associated with each link body 9 includes three articulated arms 1, 2, 3, which couple each time three link bodies 9 with each other, such that the link bodies 9 are forced to pivot to a mutually equal extent, whereby the entire support assembly arches to a constant- radius curvature. The disposition of articulation points for the articulated arms 1, 2, 3 has been described in more detail in patent publication EP-I 385 795 (Bl) and, hence, not discussed further in this specification.
Fig. 1 shows a servomotor 10, which by way of a clutch operates a ball screw 10a, which in turn pushes and/or pivots a lever system 11, upon which rests the support assembly established by the link bodies 9. The support assembly 4 has its radius of curvature Rl adjustable by means of the servomotor 10.
The arching mechanism for the tempering conveyor's support assembly 5 includes a servomotor SMl and a ball screw 12a operated thereby, which, through the intermediary of arms 12b, arches a bridge established by the link bodies 9 and thereby an entire conveyor carried by the support assembly 5. The arms 12b engage the support assembly 5 at a small distance from its ends. A second servomotor SM2 uses a herringbone gear 16 to operate ball screws 17, which engage the support assembly 5 at its opposite outer ends. The servomotors SMl and SM2 are operatively synchronized by means of an electrical gearbox to enable arching the support assembly 5 to the same radius of curvature. Since various servomotors SMl and SM2 are used for arching various sections of the support assembly 5, the resulting advantage is the elimination of inaccuracies in the curvature of the support assembly 5 and the conveyor carried thereby, which inaccuracies would have been caused by gaps resulting from the wearing of links. In particular, the curvatures of the middle portion and the ends can be retained the same.
In the presently described preferred embodiment, the arching-ready support assembly 5 has its first section in the support assembly's middle portion and its second section in the support assembly's end portions. The discussed support assembly 5 is preferably a tempering conveyor's support assembly, which is typically longer than the bending conveyor's support assembly 4. In a preferred embodiment of the invention, the tempering conveyor's support assembly 5 is preceded by the bending conveyor's support assembly 4, which has its own separate servo drive 10, 10a, 11 for arching the support assembly 4 to a constant-radius curvature Rl. As the support assembly's 4 downstream end remains stationary and its upstream end is lifted by means of the servo 10, the gaps of the link mechanisms can be controlled also in this instance in such a way that the support assembly 4 can always be arched with a desired radius of curvature.

Claims

Claims
1. An arching-ready support assembly (5) in a bending and/or tempering compartment for glass panels, said support assembly comprising a number of link bodies (9), which are connected to each other with articulated axles (9a), and control link mechanisms (1, 2, 3) present between the link bodies (9), which control arching of the support assembly (5) to a constant-radius curve, characterized in that a first section of the support assembly (5) is adapted to be arched by a first servomotor (SMl) and a second section by a second servomotor (SM2).
2. A support assembly as set forth in claim 1, characterized in that the first and second servomotors (SMl, SM2) are synchronized in operation by means of an electrical gearbox for arching the support assembly (5) to the same radius of curvature.
3. A support assembly as set forth in claim 1 or 2, characterized in that the first section of the arching-ready support assembly (5) is present in the middle portion of the support assembly and the second section in the end portion of the support assembly.
4. A support assembly as set forth in any of claims 1-3, characterized in that the support assembly (5) is a tempering conveyor's support assembly.
5. A support assembly as set forth in claim 4, characterized in that the tempering conveyor's support assembly (5) is preceded by a bending conveyor's support assembly (4), which is provided with its own separate servo drive (10, 10a, 11) for arching the support assembly (4) to a constant- radius curvature (Rl).
PCT/FI2008/050359 2007-06-18 2008-06-13 Arching-ready support assembly for glass panels WO2008155458A1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CN200880020848A CN101730666A (en) 2007-06-18 2008-06-13 Arching-ready support assembly for glass panels
CA002689138A CA2689138A1 (en) 2007-06-18 2008-06-13 Arching-ready support assembly for glass panels

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FI20075463 2007-06-18
FI20075463A FI120037B (en) 2007-06-18 2007-06-18 Curved support structure for bending and / or tempering glass sheets

Publications (1)

Publication Number Publication Date
WO2008155458A1 true WO2008155458A1 (en) 2008-12-24

Family

ID=38212434

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/FI2008/050359 WO2008155458A1 (en) 2007-06-18 2008-06-13 Arching-ready support assembly for glass panels

Country Status (5)

Country Link
CN (1) CN101730666A (en)
CA (1) CA2689138A1 (en)
FI (1) FI120037B (en)
TW (1) TW200906745A (en)
WO (1) WO2008155458A1 (en)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FI105911B (en) * 1993-10-18 2000-10-31 Glasstech Inc Glass plate bending apparatus and method
FI109198B (en) * 2001-03-07 2002-06-14 Tamglass Ltd Oy A curved construction for the bending section or the bending and hardening section of glass plates
FI109197B (en) * 2001-03-07 2002-06-14 Tamglass Ltd Oy A curved supporting construction for the bending section or the bending and hardening section of glass plates
EP1300370A1 (en) * 2001-10-02 2003-04-09 Asahi Glass Co., Ltd. Air-cooling/tempering device for a glass plate

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FI105911B (en) * 1993-10-18 2000-10-31 Glasstech Inc Glass plate bending apparatus and method
FI109198B (en) * 2001-03-07 2002-06-14 Tamglass Ltd Oy A curved construction for the bending section or the bending and hardening section of glass plates
FI109197B (en) * 2001-03-07 2002-06-14 Tamglass Ltd Oy A curved supporting construction for the bending section or the bending and hardening section of glass plates
EP1300370A1 (en) * 2001-10-02 2003-04-09 Asahi Glass Co., Ltd. Air-cooling/tempering device for a glass plate

Also Published As

Publication number Publication date
FI120037B (en) 2009-06-15
FI20075463A0 (en) 2007-06-18
CA2689138A1 (en) 2008-12-24
TW200906745A (en) 2009-02-16
CN101730666A (en) 2010-06-09
FI20075463A (en) 2008-12-19

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