Machine for the welding of plastic profiled elements

A machine for the welding of plastic profiled elements, comprising:

• at least one base frame;
• retaining means of a first profiled element and of a second profiled element made of plastic material, which extend along respective longitudinal directions and are each provided with at least one area to be welded substantially inclined by an angle comprised between 10° and 80° with respect to said respective longitudinal direction and which each comprise at least one main face substantially parallel to said longitudinal direction and square-shaped, wherein the main face of the first profiled element is projected with respect to the respective area to be welded and the main face of the second profiled element is recessed with respect to the relevant area to be welded, said retaining means being associated with said base frame and being adapted to retain the profiled elements with said areas to be welded facing each other;
• removal means associated with said base frame and comprising a pair of milling tools arranged facing the respective areas to be welded, movable in rotation around a relevant axis of rotation and adapted to remove part of said plastic material from said areas to be welded;
• suction means associated with said removal means and adapted to remove the residues of plastic material generated during the removal of said plastic material;
• heating means associated with said base frame and adapted to heat said areas to be welded;
• displacement means of said retaining means adapted to displace said profiled elements between a mutual away position and a mutual approaching position, wherein said heated areas to be welded are joined together and wherein said main faces form a square joint;
• wherein said suction means comprise at least one suction duct arranged around a respective milling tool and elongated along the relevant axis of rotation, which comprises a substantially flat abutment portion adapted to internally abut against said main face of the first profiled element during the removal of said plastic material.