Device for cutting of glass sheet
AssigneeLG Chem, Ltd.
InventorsHo Kyung Lee, Kyu Hwang Lee, Soon Ki Heo
Life of this patent
Estimating the term…
Abstract
Disclosed herein is a device for cutting a glass sheet, continuously supplied after a melting and solidification process, into quadrangular glass substrates. The glass sheet cutting device includes two or more cutters for cutting a glass sheet into quadrangular glass substrates, a defect inspector for scanning the glass sheet to three-dimensionally check defect positions in a length direction, a width direction and a thickness direction of the glass sheet, a position adjuster for moving at least one of the cutters to a portion of the glass sheet at which few defects are distributed, and a controller for informing the position adjuster of positions of the cutters based on the scanned results received from the defect inspector.
Claims24
A device for cutting a glass sheet, continuously supplied after a melting and solidification process, into quadrangular glass substrates, the glass sheet cutting device comprising:
- two or more cutters for cutting a glass sheet into quadrangular glass substrates;
- a defect inspector for scanning the glass sheet to three-dimensionally check defect positions in a length direction, a width direction and a thickness direction of the glass sheet;
- a position adjuster for moving at least one of the cutters to a portion of the glass sheet at which few defects are distributed;
- a controller for informing the position adjuster of positions of the cutters based on the scanned results received from the defect inspector;
- and
- a thickness inspector for checking unevenness of the outer surface of the glass sheet,
- wherein the defect inspector comprises two or more cameras for checking the defect positions of the glass sheet in the length direction, the width direction and the thickness direction of the glass sheet.
A device for cutting a glass sheet, continuously supplied after a melting and solidification process, into quadrangular glass substrates, the glass sheet cutting device comprising:
- two or more cutters for cutting a glass sheet into quadrangular glass substrates, wherein the cutters comprise:
- a first cutter for cutting the glass sheet in the width direction ('Y direction') into first glass substrates;
- a second cutter for cutting each of the first glass substrates in the length direction ('X direction') into second glass substrates;
- a third cutter for cutting each of the second glass substrates in the width direction ('X direction') into third glass substrates;
- and
- a fourth cutter for cutting the third glass substrates in the length direction ('Y direction'),
- a defect inspector for scanning the glass sheet to three-dimensionally check defect positions in a length direction, a width direction and a thickness direction of the glass sheet;
- a position adjuster for moving at least one of the cutters to a portion of the glass sheet at which few defects are distributed;
- a controller for informing the position adjuster of positions of the cutters based on the scanned results received from the defect inspector;
- and
- a thickness inspector for checking unevenness of the outer surface of the glass sheet.
A device for cutting a glass sheet, continuously supplied after a melting and solidification process, into quadrangular glass substrates, the glass sheet cutting device comprising:
- two or more cutters for cutting a glass sheet into quadrangular glass substrates;
- a defect inspector for scanning the glass sheet to three-dimensionally check defect positions in a length direction, a width direction and a thickness direction of the glass sheet;
- a position adjuster for moving at least one of the cutters to a portion of the glass sheet at which few defects are distributed;
- a controller for informing the position adjuster of positions of the cutters based on the scanned results received from the defect inspector, wherein the controller comprises an arrangement server for performing mixed integer linear programming based on positional information of the defects input by the defect inspector to imaginarily arrange glass substrates on the glass sheet;
- and
- a thickness inspector for checking unevenness of the outer surface of the glass sheet.
Dependencies are inferred from the claim text.