Methods and systems for processing of glass ribbon

Patent metadata

Field	Value
Publication number	US-10800696-B2
Application number	US-201615574998-A
Country	US
Kind code	B2
Filing date	May 17, 2016
Priority date	May 18, 2015
Publication date	Oct 13, 2020
Grant date	Oct 13, 2020

Abstract

A method and apparatus for processing glass comprising a forming apparatus in a first processing zone, the forming apparatus configured to form a glass ribbon having a first direction of travel in the first processing zone. The apparatus also includes a first cutting apparatus in a second processing zone, the first cutting apparatus configured to separate one or more portions of the glass ribbon, the glass ribbon having a second direction of travel. The apparatus includes a first buffer zone between the first processing zone and the second processing zone in which the glass ribbon is supported in a first catenary between two, spaced-apart payoff positions. The second direction of travel in the second processing zone can be orthogonal to the first direction of travel in the first processing zone.

First claim

What we claim is:

1. A method of processing a glass ribbon comprising:
forming a glass ribbon in a first processing zone;
continuously feeding the glass ribbon from the first processing zone having a first direction of travel to a second processing zone having a second direction of travel orthogonal to the first direction of travel;
controlling feed rate of the glass ribbon through each of the first processing zone and second processing zone using a global control device;
cutting the glass ribbon in the second processing zone; and
isolating the first processing zone from perturbations occurring in the second processing zone.

2. The method of claim 1 , wherein the step of cutting the glass ribbon in the second processing zone further comprises separating one or more edges of the glass ribbon to remove any beads adjacent the one or more edges.

3. The method of claim 1 , wherein the step of cutting the glass ribbon in the second processing zone further comprises separating the glass ribbon in a direction substantially orthogonal to the second direction of travel to create a glass sheet.

4. The method of claim 1 , wherein the step of forming further comprises separating one or more edges of the glass ribbon to remove any beads adjacent the one or more edges.

5. The method of claim 1 , wherein the step of continuously feeding the glass ribbon further comprises continuously feeding the glass ribbon from the second processing zone to a third processing zone.

6. The method of claim 5 , further comprising the step of isolating the second processing zone from perturbations occurring in the third processing zone.

7. The method of claim 5 , wherein the step of cutting the glass ribbon further comprises separating one or more edges of the glass ribbon to remove any beads adjacent the one or more edges and wherein the method further comprises any one or combination of the following steps:
inspecting the glass ribbon in the third processing zone,
separating the glass ribbon in a direction substantially orthogonal to the second direction of travel to create a glass sheet,
laminating the glass sheet, and
packaging the glass sheet.

8. The method of claim 1 further comprising any one or combination of the following steps:
inspecting the glass ribbon in the second processing zone,
separating the glass ribbon in a direction substantially orthogonal to the second direction of travel to create a glass sheet,
laminating the glass sheet, and
packaging the glass sheet.

9. The method of claim 1 , wherein the step of forming further comprises forming using a fusion draw, slot draw, float, or redraw process to form the glass ribbon.

10. The method of claim 1 , wherein the step of controlling further comprises controlling a feed rate of the glass ribbon within the first processing zone, second processing zone, or both first and second processing zones.

11. The method of claim 1 , wherein the first direction of travel is vertical and the second direction of travel is horizontal.

12. The method of claim 1 , wherein the first direction of travel is vertical and the second direction of travel is lateral.

13. The method of claim 1 , wherein the glass ribbon has a thickness of less than 0.5 mm.

14. The method of claim 1 , wherein the step of controlling further comprises controlling tension in the first and second directions of travel through the first and second processing zones and first buffer zone.

Assignees

• Corning Inc

Inventors

• Aburada Tomohiro
• Brackley Douglas Edward
• Kudva Gautam Narendra
• Markham Shawn Rachelle
• Merz Gary Edward
• Miller Eric Lee

Classifications

• Y02P40/57

  Improving the yield, e-g- reduction of reject rates · CPC title

• C03B17/068

  Means for providing the drawing force, e.g. traction or draw rollers · CPC title

• Y02P40/50

  Glass production, e.g. reusing waste heat during processing or shaping · CPC title

• C03B33/0235 Primary

  Ribbons · CPC title

• C03B33/037

  Controlling or regulating · CPC title