Method for producing glass film

A manufacturing method and glass film technology, applied in glass manufacturing equipment, glass forming, glass forming, etc., can solve problems such as difficult and high-precision glass film cutting

Active Publication Date: 2019-12-13
NIPPON ELECTRIC GLASS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, there may be a problem that it is difficult to cut the glass film with high precision.

Method used

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  • Method for producing glass film
  • Method for producing glass film
  • Method for producing glass film

Examples

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Embodiment Construction

[0045] Embodiments for implementing the present invention will be described below with reference to the drawings. figure 1 6 shows the first embodiment of the production apparatus for carrying out the production method of the glass film of the present invention.

[0046] figure 1 It is a schematic side view schematically showing the overall structure of a glass film manufacturing apparatus. Such as figure 1 As shown, the manufacturing device 1 is provided with: a forming part 2, which shapes the glass film G; a direction changing part 3, which changes the traveling direction of the glass film G from vertically downward to horizontally; The glass film G is transported in the lateral direction; the cutting unit 5 cuts the widthwise ends Ga, Gb of the glass film G into non-product parts Gc while being transported in the lateral direction by the transverse transporting unit 4; The glass roll R is comprised by winding up the product part Gd obtained by cutting and removing th...

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Abstract

A transport step in a method for producing a glass film G comprises a wrinkle removal step for removing wrinkles from the glass film G by a wrinkle removal unit 20 disposed on the upstream side from alaser irradiation device 25. A cutting step in the method for producing a glass film G involves separating the glass film G by irradiating the glass film G with laser light L after wrinkles Ge are removed from the glass film G in the transport step, and generating a filamentous peeled product Gg from the width-direction end portion of the separated glass film G.

Description

technical field [0001] The present invention relates to a method for producing a glass film that can be wound into a roll. Background technique [0002] As we all know, sheet glass for flat panel displays (FPD) such as liquid crystal displays and organic EL displays, sheet glass for organic EL lighting, sheet glass for manufacturing such as tempered glass as a component of touch panels, and solar cell panels are being promoted. Thinning of the flat glass used. [0003] For example, Patent Document 1 discloses a glass film (thin plate glass) having a thickness of several hundred μm or less. Such a glass film is usually continuously formed by a forming apparatus using a so-called overflow down-draw method as described in this document. [0004] The elongated glass film continuously formed by the overflow down-draw method is, for example, shifted from the vertical direction to the horizontal direction, and then continues to be conveyed downstream by the lateral conveyance sec...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C03B33/08B23K26/38C03B17/06
CPCC03B33/08C03B17/06B23K26/38B23K2103/54C03B33/082C03B33/03C03B35/14
Inventor 长谷川义德森弘树森浩一秋山修二植村弥浩松本直之
Owner NIPPON ELECTRIC GLASS CO LTD
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