US 8,408,971 B2Granted

Grinding assembly for bevelling corners of glass sheets

AssigneeBottero S.p.A.

InventorsMario Balbi, Salvatore Cantoro, Andrea Tonda Roch, Giovanni Vidotto

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Abstract

The corners of a sheet of glass travelling in a longitudinal direction are ground by a grinding assembly having a fixed frame; a movable frame; a grinding wheel; a supporting arm supporting the grinding wheel and fitted to the movable frame; and an actuating device interposed between the fixed frame and the movable frame, and having a first powered guide-slide assembly for moving the movable frame in a direction parallel to a longitudinal travelling direction of the sheet, and a second powered guide-slide assembly for moving the movable frame with respect to the fixed frame in a direction perpendicular to the longitudinal direction; the grinding assembly also having a locator fixed to the supporting arm and defining a stop to keep the sheet at a distance from the grinding wheel; and a compensating device interposed between the supporting arm and the movable frame, and having a third guide-slide assembly and a flexible controlled-damping device.

Claims16

Dependent claims

A grinding assembly for bevelling corners of glass sheets, the grinding assembly comprising a fixed frame;

a movable frame;
a grinding wheel;
a supporting arm for supporting said grinding wheel and connected to said movable frame;
and an actuating device interposed between said fixed frame and said movable frame, and in turn comprising a first powered guide-slide assembly for moving the movable frame in a direction parallel to a longitudinal travelling direction of a work sheet, and a second powered guide-slide assembly for moving said movable frame and said supporting arm with respect to the fixed frame in a transverse direction perpendicular to said longitudinal travelling direction;
a locator carried by said supporting arm, for keeping a lateral surface, parallel to said transverse direction, of said work sheet in a longitudinally fixed position with respect to said grinding wheel;
and a compensating device comprising a third guide-slide assembly and flexible means, and which allows said supporting arm to move with respect to said movable frame in a direction parallel to said longitudinal travelling direction.

3 more elements

Dependencies are inferred from the claim text.