Glass film manufacturing method

Patent metadata

Field	Value
Publication number	US-11511461-B2
Application number	US-201816493358-A
Country	US
Kind code	B2
Filing date	Feb 22, 2018
Priority date	Mar 13, 2017
Publication date	Nov 29, 2022
Grant date	Nov 29, 2022

Abstract

Provided is a glass film manufacturing method in which manufacture-related processing is performed on a glass film while the glass film (G) is conveyed, the glass film manufacturing method comprising the step of conveying the glass film (G) on a suction roller (46), wherein the suction roller (46a) is configured to suck only a center portion of the glass film in a width direction of the glass film (G).

First claim

The invention claimed is:

1. A glass film manufacturing method
comprising a cutting step of cutting a glass film with a cutting device while conveying the glass film,
wherein, in the cutting step, a belt conveyor having a suction portion only at a position corresponding to a center portion of the glass film in a width direction is arranged on an upstream side of the cutting device, and
wherein, in the cutting step, the glass film is supplied to the cutting device by the belt conveyor while the suction portion sucks only the central portion of the glass film in the width direction so that wrinkles of the glass film in the cutting device are suppressed.

2. The glass film manufacturing method according to claim 1 , wherein the width of the suction portion is equal to or smaller than a half of an entire width of the glass film.

3. The glass film manufacturing method according to claim 1 ,
wherein the belt conveyor is divided into a plurality of belt conveyors in the width direction, and
wherein the suction portion is provided only in a center belt conveyor arranged at a center portion in the width direction among the divided belt conveyors.

4. The glass film manufacturing method according to claim 1 , wherein the glass film is taken up and collected by a take-up roller after the cutting.

Assignees

• Nippon Electric Glass Co

Inventors

• Mitsugi Kaoru
• Akiyama Shuji
• Hasegawa Yoshinori

Classifications

• B65H20/12

  by suction roller · CPC title

• B65H2406/32

  Suction belts · CPC title

• B65H20/10 Primary

  by a feed band against which web is held by fluid pressure, e.g. suction or air blast · CPC title

• B28D7/04 Primary

  for supporting or holding work {or conveying or discharging work (B28D1/047, B28D5/0041, B28D5/0052 take precedence)} · CPC title

• B65H35/02

  from or with longitudinal slitters or perforators · CPC title