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Glass film manufacturing method, glass roll manufacturing method, and glass film manufacturing device

A manufacturing method and technology of glass film, applied in glass manufacturing equipment, glass cutting devices, manufacturing tools, etc., to achieve the effect of stable cutting

Pending Publication Date: 2022-07-15
NIPPON ELECTRIC GLASS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

There is a problem that, when the glass film is cut in a state where the wrinkle overlaps with the irradiation position of the laser beam, a defective part caused by the wrinkle remains on the end surface of the glass film caused by cutting.

Method used

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  • Glass film manufacturing method, glass roll manufacturing method, and glass film manufacturing device
  • Glass film manufacturing method, glass roll manufacturing method, and glass film manufacturing device
  • Glass film manufacturing method, glass roll manufacturing method, and glass film manufacturing device

Examples

Experimental program
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Effect test

Embodiment Construction

[0054] Below, based on Figure 1 to Figure 10 The 1st Embodiment of the manufacturing method of the glass film of this invention is demonstrated.

[0055] like figure 1 As shown, the manufacturing apparatus 1 of the glass film according to the first embodiment of the present invention includes: a forming part 2 that forms a strip-shaped base material glass film G; and a direction changing part 3 that changes the advancing direction of the base material glass film G from The longitudinal direction is changed from the bottom to the horizontal direction; the first conveying part 4 conveys the base material glass film G in the transverse direction after the direction change; In the present embodiment, the manufacturing apparatus 1 further includes a second glass film (hereinafter, referred to as a first glass film.) G1 from which both ends in the width direction are removed in a roll shape to obtain a first glass roll GRL1. One winding part 6 can therefore also be used as a manu...

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Abstract

A method for producing a glass film (G1), the method including at least a cutting step (S5) for cutting a band-shaped glass film (G1) while conveying the band-shaped glass film (G1) in a predetermined direction by a conveyance device (8), and in the cutting step (S5), the glass film (G1) is cut in a predetermined cutting region (21) by irradiating the glass film (G1) with laser light (L). The support conveyance surfaces (23a, 28a) of the glass film (G1) of the conveyance device (8) are broken in the cutting region (21) of the glass film (G1). In addition, a first platform (38) that can contact and support the glass films (G2a, G2b) is disposed at a position that is located in the width direction of the glass film (G1) with respect to the cutting region (21) and corresponds to the center side in the width direction of the cut glass films (G2a, G2b).

Description

technical field [0001] The present invention relates to a method for producing a glass film, a method for producing a glass roll, and an apparatus for producing a glass film, and particularly relates to a technique for cutting a strip-shaped glass film. Background technique [0002] As is well known, the actual situation is that in plate glass used for flat panel displays (FPD) such as liquid crystal displays and organic EL displays, plate glass used in organic EL lighting, tempered glass used as a component of touch panels, etc. In the sheet glass to be manufactured, and the sheet glass used for panels of solar cells, etc., the thickness reduction is progressing. [0003] For example, Patent Document 1 discloses a glass film having a thickness of several hundreds of μm or less. As described in this document, such a plate glass is generally continuously formed by a forming apparatus using a so-called overflow down-draw method. [0004] In this case, after the conveyance di...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C03B33/09B28D7/04B65H20/14
CPCB28D1/221B28D7/046C03B33/03C03B33/091C03B33/0235B65G2249/045B65H20/10B65H35/02B65H2801/61C03B33/037B28D7/00B65H20/14B65H23/02Y02P40/57C03B17/068C03B35/202
Inventor 猪饲直弘村田宪一
Owner NIPPON ELECTRIC GLASS CO LTD
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