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Manufacturing method of glass film

A glass film and manufacturing method technology, applied in glass manufacturing equipment, manufacturing tools, glass cutting devices, etc., can solve problems such as residual defective parts, and achieve the effect of preventing defective end faces

Active Publication Date: 2022-05-27
NIPPON ELECTRIC GLASS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the conventional laser cutting method, if the glass film is cut with the wrinkle superimposed on the irradiation position of the laser light, a defective part due to the wrinkle remains on the end surface (cross section) of the cut glass film. such problem

Method used

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  • Manufacturing method of glass film
  • Manufacturing method of glass film
  • Manufacturing method of glass film

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Experimental program
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Embodiment Construction

[0032] Hereinafter, modes for implementing the present invention will be described with reference to the accompanying drawings. Figure 1 to Figure 9 One Embodiment of the manufacturing method and manufacturing apparatus of the glass thin film of this invention is shown.

[0033] like figure 1 As shown, the manufacturing apparatus 1 includes: a forming part 2 for forming a strip-shaped base material glass film G; a direction changing part 3 for changing the advancing direction of the base material glass film G from the vertical downward direction to the lateral direction; The first conveying part 4 for conveying the glass film G in the lateral direction; the first cutting part 5 for cutting the width direction end (ear part) of the base glass film G; A glass film ") G1 is wound into a roll shape to constitute the first winding portion 6 of the first glass roll GRL1.

[0034] Moreover, the manufacturing apparatus 1 is equipped with the extraction part 7 which extracts the 1st...

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Abstract

The method for producing a glass film according to the present invention includes a cutting step (S5) of irradiating laser light (L) to a ribbon-shaped glass film (G1) conveyed along a predetermined conveying direction (X) to cut the glass film (G1). In the cutting step (S5), it is provided with: the lower surface of the glass film (G1) is supported by a platform (22) having an opening (25a), and the process of sucking the glass film (G1) by the opening (25a); A process of irradiating the glass film (G1) attracted by the opening (25a) with laser light (L).

Description

technical field [0001] The present invention relates to, for example, a method for producing a ribbon-shaped glass film. Background technique [0002] As is well known, plate glass used in flat panel displays (FPD) such as liquid crystal displays and organic EL displays, plate glass used in organic EL lighting, glass plates used in the production of tempered glass as a constituent element of touch panels, etc. There are glass sheets used for panels of solar cells, etc., and the actual situation is that the reduction in thickness is being promoted. [0003] For example, Patent Document 1 discloses a glass film (thin plate glass) having a thickness of several hundreds of μm or less. Such a glass film is generally continuously formed by a forming apparatus using a so-called overflow down-draw method, as also described in the literature. [0004] In the manufacturing method of the glass film disclosed in Patent Document 1, the conveyance direction of the elongated glass film o...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C03B33/09
CPCC03B33/091C03B33/0235B65G2249/04C03B33/03C03B33/033C03B33/102C03B35/183C03B33/093
Inventor 猪饲直弘村田宪一
Owner NIPPON ELECTRIC GLASS CO LTD