Apparatus for cutting sheets of plate glass according to a programmed profile
AssigneeSocieta Italiana Vetro - SIV - S.p.A.
InventorCarlo Bonacci
Life of this patent
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Abstract
Apparatus for cutting sheets of plate glass, particularly for making automobile windows, according to a profile programmed in a digital control unit the control output of which is coupled to electrohydraulic amplifiers, each of which controls the movements of a hydrodynamic cylinder moving on a fixed piston rod. A cutting head is fixed to one of the cylinders, while a table to bring the sheet of glass to be cut into contact with the cutting head is fixed to the other cylinder. The two cylinders move in perpendicular directions, and their coordinated movements cause the glass to be cut in a programmed profile. A belt conveyor is incorporated in the machine to carry the glass to the table, and may assume a raised position for transport and a lowered position at rest (FIG. 1).
Claims6
Apparatus for cutting sheets of plate glass according to a programmed profile, used particularly for automobile windows, comprising in combination:
- a chassis;
- a first piston rod fixed to said chassis, with a first hydraulic piston fixed to it;
- a first cylinder in hydraulic and sliding engagement with said first rod and said first piston;
- a first hydrodynamic control device fixed to the chassis, which hydrodynamically controls the sliding movement of said first cylinder;
- a cutting head fixed to said first cylinder for cutting a sheet of plate glass;
- at least two guide bars disposed perpendicular to said first piston rod and fixed to the chassis;
- a table, sliding on said guide bars in a direction perpendicular to said first piston rod, for supporting on its surface the sheet of glass in a position enabling engagement with said cutting head for a cutting operation;
- a second piston rod fixed to the chassis and parallel to said guide bars, having a second hydraulic piston fixed to it;
- a second cylinder in sliding and hydraulic engagement with said rod and said second piston, and connected rigidly to said table;
- and
- a second hydrodynamic control device which controls the sliding movement of said second cylinder, so that coordinated commands for the movements of said first and second cylinders, by means of said first and respectively second hydrodynamic control device, effect a cut of the glass according to the desired profile.
Dependencies are inferred from the claim text.