Apparatus and method for cutting slabs made of porcelain

An apparatus for cutting slabs made of porcelain, comprising a support and blocking plane of at least one slab, and at least one cutting group of the slab, arranged superiorly thereof, and comprising rotary tools associated with a carriage mobile along a parallel direction to the support plane;

• means being included for moving the rotary tools, independently of one another, in a perpendicular direction to the parallel direction, between two end positions, respectively an active neared position for working on the slab and a non-active distanced position, raised from the slab, wherein the carriage comprises at least two of the rotary tools and arranged one following another and on a same vertical cutting plane and configured such as to carry out, on the slab, a complementary cutting action, in which:—a first rotary tool is configured, in the active neared position thereof, and has, where the carriage moves in an entering direction on the slab to be worked, a clockwise rotation direction of attack on the slab, incising the slab on the upper surface thereof, in entry, with an aim of not causing chipping in entry on the slab;
• a second rotary tool being positioned in the distanced position thereof;
• following entry on the slab by the first rotary tool, the second rotary tool is configured in the neared position thereof, and has an anticlockwise rotation in an exit step of the second rotary tool from the slab, the first rotary tool being successively positioned in the distanced position thereof

A method for cutting porcelain slabs, arranged on a support and blocking plane of at least one slab, by means of at least one cutting group comprising rotary tools associated with a carriage mobile along a parallel direction to the support plane;

• the rotary tools being mobile, independently of one another, in a perpendicular direction to the parallel direction, between two end positions, respectively an active neared position for working on the slab and a non-active distanced position, raised from the slab, the method comprising the following steps:
• activating at least a first rotary tool of said rotary tools, configured, in the active neared position thereof, and having, where the carriage moves in an entering direction on the slab to be worked, a clockwise rotation direction of attack on the slab, incising the slab on the upper surface thereof, in entry, with an aim of not causing chipping in entry on the slab;
• a second rotary tool of said rotary tools being positioned in the distanced position thereof;
• following entry on the slab by the first rotary tool, activating at least a second rotary tool configured in the neared position thereof and having an anticlockwise rotation direction with an aim of increasing the incision and the cut, so as to avoid chipping in an exit step of the second rotary tool from the slab, the rotary tools and being successively positioned one following another and on the same vertical cutting plane, so as to carry out, on the slab, a complementary cutting action;
• subsequent de-activation of the first rotary tool in the distanced position thereof