Constant force scoring device and method for using same
AssigneeCorning Incorporated
InventorsMohamed Dahroug, Scott Winfield Deming, Micheal Albert Joseph, II, Thomas Achille Yorio, Naiyue Zhou
Life of this patent
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Abstract
A scoring device is described herein that applies a constant force while scoring a piece of material so that there is a consistent score quality (or vent depth) within the scored piece of material. In one embodiment, the piece of material is a bowed shaped glass sheet that is supported by a conformable nosing device which has been configured to have a bowed shape that substantially matches the bowed shape of the glass sheet.
Claims20
A scoring device, comprising:
- a score wheel;
- a horizontal linear motor/actuator that moves said score wheel in an X-direction along a side of a sheet of material;
- a first vertical linear motor/actuator that moves said score wheel in a Y-direction towards the side of the sheet of material;
- and
- a ranging sensor that obtains positional information about a location of the side of the sheet of material so that said horizontal linear motor/actuator and said first vertical linear motor/actuator can both be moved such that said score wheel remains at a substantially constant distance from the side of the sheet of material which enables said score wheel to be extended so as to apply a substantially constant scoring force while said score wheel moves along and scores the side of the sheet of material.
A method for producing a glass sheet, said method comprising the steps of:
- melting batch materials to form molten glass and processing the molten glass to form the glass sheet;
- drawing the glass sheet using a fusion draw machine;
- routing the glass sheet along a nosing device;
- and
- scoring the glass sheet using a scoring device including:
- a score wheel;
- a horizontal linear motor/actuator that moves said score wheel in an X-direction along a side of the glass sheet;
- a first vertical linear motor/actuator that moves said score wheel in a Y-direction towards the side of the glass sheet;
- and
- a ranging sensor that obtains positional information about a location of the side of the sheet of material so that said horizontal linear motor/actuator and said first vertical linear motor/actuator can both be moved such that said score wheel remains at a substantially constant distance from the side of the glass sheet which enables said score wheel to be extended so as to apply a substantially constant scoring force while said score wheel moves along and scores the side of the glass sheet.
A glass manufacturing system comprising:
- at least one vessel for melting batch materials and forming molten glass;
- a forming device for receiving the molten glass and forming a glass sheet;
- a fusion draw machine for drawing the glass sheet;
- a traveling anvil machine including:
- a nosing device over which is routed a first side of the glass sheet;
- and
- a scoring device including:
- a score wheel;
- a horizontal linear motor/actuator that moves said score wheel in an X-direction along a second side of the glass sheet;
- a first vertical linear motor/actuator that moves said score wheel in a Y-direction towards the second side of the glass sheet;
- and
- a ranging sensor that obtains positional information about a location of the second side of the sheet of material so that said horizontal linear motor/actuator and said first vertical linear motor/actuator can both be moved such that said score wheel remains at a substantially constant distance from the second side of the glass sheet which enables said score wheel to be extended so as to apply a substantially constant scoring force while said score wheel moves along and scores the second side of the glass sheet.
Dependencies are inferred from the claim text.