Method and device for breaking thin glass sheets
AssigneeMDI SCHOTT Advanced Processing GmbH
InventorBernd Christoph Hoetzel
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Abstract
A method and a device are described to break thin glass sheets, especially compound and sandwich sheets (double sheets) in which the scratched glass is placed scratched side down on a glass cutting table that is provided with an elastic cover. The sheets are fixed to the glass cutting table by means of a vacuum, and they are broken by applying pressure to the unscratched side with a cutter. The elastic cover has a Shore A hardness of 60 to 100 and a rebound resilience according to DIN 53 512 of 35% to 70%.
Claims13
A method to break thin glass sheets, especially sandwich sheets, wherein the sheet to be broken is scratched, the scratched side is placed on a breaking table with an elastic base and fixed thereto by means of a vacuum, then pressure is exerted on the unscratched side of the sheet opposite the scratch line by means of a cutter which causes the sheet to break along the scratch line, wherein an elastic base having a Shore A hardness of 60 to 100 and a rebound resilience according to DIN 53 512 of 35% to 70% is used.
The device to break thin glass sheets, especially sandwich sheets comprising a breaking table to bear the glass sheet, wherein the breaking table has an elastic cover for facing the side of the glass sheet with a scratch line, wherein the elastic cover has openings for applying a vacuum to fix the glass sheet, and a pressure part (cutter) at a distance above the table for exerting pressure on the glass sheet, wherein the elastic cover comprises an elastomer and has a Shore A hardness of 60 to 100 and a rebound resilience according to DIN 53 512 of 35% to 70%.
Dependencies are inferred from the claim text.