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Manufacturing method for glass film and manufacturing device therefor

A technology of glass film and manufacturing method, applied in glass manufacturing equipment, glass cutting device, glass forming and other directions, can solve the problems of glass film belt breakage, breakage, futileness, etc., and achieve the effect of no bending deformation

Active Publication Date: 2015-06-24
NIPPON ELECTRIC GLASS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Since glass is a brittle material, when a straightening force is continuously applied to the glass film ribbon, deformation may accumulate on the glass film ribbon, which may eventually cause damage (fracture) to the glass film ribbon
Therefore, it is difficult to continuously perform the winding operation of the glass film ribbon with good precision and stably, and there are many wastes to be carried out thereby.

Method used

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  • Manufacturing method for glass film and manufacturing device therefor
  • Manufacturing method for glass film and manufacturing device therefor
  • Manufacturing method for glass film and manufacturing device therefor

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0032] Below, based on figure 1 and figure 2 An embodiment of the present invention will be described.

[0033] figure 1 It is a side view of the glass film manufacturing apparatus 1 according to an embodiment of the present invention. As shown in the figure, the manufacturing apparatus 1 includes a forming apparatus 10 that forms a glass film ribbon G from molten glass by the so-called overflow down-draw method, and winds the glass film ribbon G drawn downward as it cools. The roll-shaped winding device 20 cuts the glass film ribbon G drawn downward in the width direction through the width direction cutting device 30 arranged on the upstream side of the winding device 20, thereby obtaining a predetermined The glass film roll body Gr of the roll thickness.

[0034] In detail, a molded body 11 having a wedge-shaped cross-sectional outer surface shape is arranged inside the molding device 10, and glass (melted glass) melted in a furnace (not shown) is supplied to the molded body 1...

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Abstract

Provided is a manufacturing device (1) of a glass film, the device including: a forming apparatus (10) of a glass film ribbon (G) for forming molten glass or a glass base material for secondary processing into a glass film ribbon (G); a winding apparatus (20) for winding, into a roll shape, the glass film ribbon (G), which is drawn downward while being cooled; and a width direction cutting apparatus (30) for cutting the glass film ribbon (G) along its width direction at a position before being wound by the winding apparatus (20). A vertical distance (h) from the glass film ribbon (G) forming start position by the forming apparatus (10) to a glass film ribbon (G) cutting position by the width direction cutting apparatus (30) is set as five times or more of a dimension in the width direction of the glass film ribbon (G).

Description

Technical field [0001] The present invention relates to a method of manufacturing a glass film and a manufacturing device thereof, and in particular to a manufacturing technology of a long glass film that can also be wound into a roll. Background technique [0002] As we all know, in recent years, image display devices are represented by flat panel displays (hereinafter referred to as FPD) such as liquid crystal displays (LCD), plasma displays (PDP), field emission displays (FED), and organic EL displays (OLED). Become the mainstream. With regard to the FPD described above, due to the continuous advancement in weight reduction, the current situation is also exploring a way to thin the glass substrate used in the FPD. [0003] In addition, for example, the organic EL is not limited to lighting or extinguishing the fine three primary colors by TFT like a display, and can also be used as a flat light source such as a backlight of an LCD or a light source for indoor lighting by only e...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C03B33/02C03B17/06C03B33/09
CPCC03B17/06C03B17/064C03B23/037C03B33/0215B23K28/02C03B33/09Y02P40/57
Inventor 江田道治
Owner NIPPON ELECTRIC GLASS CO LTD
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