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Method and device for bending glass sheet

A glass plate and bending technology, which is applied in glass forming, glass reshaping, glass manufacturing equipment, etc., can solve the problems of door and window glass becoming brittle, harmful, and uneven cooling, and achieve improved productivity, good optical quality, and good The effect of bending accuracy

Inactive Publication Date: 2006-01-04
SAINT GOBAIN VITRAGE SA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However these techniques still have some disadvantages; firstly, for each transfer, the movement of the carrier mechanism needs to be precisely positioned so that the glass sheet is well received
In addition, since the glass panes are supported at their periphery by frames, the cooling is not uniform; this disadvantage is especially when the glass panes are annealed or semi-tempered for the production of multilayer glazing, or when the glass panes are tempered. harmful
This is because problems at the edges occur in various cases, resulting in brittle door and window glass

Method used

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  • Method and device for bending glass sheet
  • Method and device for bending glass sheet
  • Method and device for bending glass sheet

Examples

Experimental program
Comparison scheme
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Embodiment Construction

[0052] To simplify understanding of these figures, the various figures are not drawn to scale.

[0053] figure 1 An oven 1 is shown in which a glass sheet 2 travels on a roller conveyor 3 . While the glass sheet is staying in the furnace 1, the glass sheet 2 is brought up to its softening temperature. The glass sheet 2 is then guided to the bending platform 4 always supported by the conveyor 3 . In the curved platform 4 a frame 5 is arranged below the plane formed by the roller conveyor 3 . When the glass sheet 2 arrives on this frame, some components not shown in the figure ensure that the glass sheet is precisely positioned, and then the movement of the glass sheet is stopped by stopping the rollers in the bending zone. The bending frame 5 then passes through the roller stand 3 to lift the glass sheet. As mentioned above, the shape of the bending frame 5 is intended to give the glass sheet the shape it is designed to pass through the roller stand 3; either the frame 5 i...

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PUM

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Abstract

A method for bending a sheet of glass involving heating the sheet of glass to a softening temperature, transporting the sheet of glass in an essentially horizontal path as far as a station for bending the sheet of glass between two forms, shaping the sheet of glass by pressing between the two forms, and cooling the sheet of glass in an appropriate station. Shaped rollers receive the sheet of glass after it has been bent and the rollers are oriented parallel to the direction defined on the sheet of glass by the direction in which it is conveyed into the bending station.

Description

technical field [0001] The present invention relates to the technique of bending a glass sheet followed by a cooling process. This technique according to the invention is particularly suitable for bending glass sheets to be tempered, or for bending several glass sheets followed by cooling and then assembled two by two to form multilayer glazing. Background technique [0002] Although the invention is not limited to such applications, the invention is more particularly described with reference to the forming of glass sheets to furnish side parts of motor vehicles. [0003] More particularly, the present invention relates to techniques according to which glass sheets are conveyed on a roller stand and fed one by one through a furnace to raise their temperature to near the softening temperature. Once the glass sheet leaves the furnace, it is guided to the bending platform. On this curved platform, the lower formwork lifts the glass sheet and presses it against the upper formw...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C03B35/20C03B23/03
CPCC03B35/202C03B23/03
Inventor G·加尼尔T·奥利弗尔C·马楚拉
Owner SAINT GOBAIN VITRAGE SA