Machine for welding profiled elements

Machine (1) for welding profiled elements, wherein said machine (1) comprises:

• at least one base frame (2);
• at least two retaining members (3, 4) of respective profiled elements (5) made at least partly of plastic and comprising at least one area to be welded (6), said retaining members (3, 4) being mounted on said base frame (2) and defining at least a first retaining axis (A) and at least a second retaining axis (B) forming an angle of welding (7), and along which said profiled elements (5) can be fastened;
• removal means (8) of material from said profiled elements (5) to make at least one machining on said at least one area to be welded (6) of said profiled elements (5);
• heat sealing means (9) mounted on said base frame (2) and adapted to weld said at least one area to be welded (6) of said profiled elements (5);
• adjusting means (10) of said angle of welding (7) adapted to move at least one of said retaining members (3, 4) to incline at least one of said first retaining axis (A) and said second retaining axis (B) to change said angle of welding (7);
• sliding means (11) of said retaining members (3, 4), mounted on said base frame (2) and adapted to move said retaining members (3, 4) in mutual approach or moving away without changing said angle of welding (7);
• wherein said sliding means (11) comprises
• at least two backing planes (13);
• and
• at least two rectilinear guides (14) interposed between said backing planes (13) and said base frame (2), said backing planes (13) sliding in mutual approach or moving away on said rectilinear guides (14) along one direction of welding (C);
• wherein said adjusting means (10) comprises:
• at least two holding planes (15) of said retaining members (3, 4) respectively and rotating around at least two adjusting axes (D) respectively, which are arranged substantially orthogonal to said backing planes (13);
• and
• wherein:
• said adjusting means (10) is configured to detect the inclination of said first retaining axis (A) and of said second retaining axis (B) respectively, with respect to a reference position;
• and
• said adjusting means (10) comprise at least two encoders (22) associated with said holding planes (15) respectively, said encoders (22) being configured to detect the inclination of said first retaining axis (A) and of said second retaining axis (B) respectively, with respect to the reference position.