Device and method for trimming a float glass strip that has a normal or structured surface

A device for cutting to length a float glass strip having a normal or structured surface, having the following features:

• a) i) a lower cutting carriage (4) having a lower running rail (3) below a plurality of conveying rollers (2) adapted for supporting a glass strip (11), said lower cutting carriage (4) for making an undercut in the case of a structured surface, and
• ii) an upper cutting carriage (7) having an upper running rail (5) above the plurality of conveying rollers (2), said upper cutting carriage 7 for making an overcut in the case of a normal surface, wherein the lower and upper running rails (3, 5) are arranged obliquely at acute angles in relation to the conveying direction of the glass strip (11) and each inclination is adjustable,
• b) a number of counterpressure rollers (8) above the conveying rollers, adapted to oppose a force exerted by the lower cutting carriage (4) when making an undercut in the glass strip (11),
• c) a first hold-down unit (6) having a first fracture roller (20) and a front hold-down roller (21) for breaking the glass strip (11) along an undercut produced by the lower cutting carriage (4),
• d) a second hold-down unit (15) having a second fracture roller (14) and a rear hold-down roller (18) for an overcut produced by the upper cutting carriage (7), and
• e) units (10, 11, 12) for measuring the advancing speed of the glass strip (11) and its current length.