Line for producing metal profiles for plasterboard false ceilings

A line for producing metal profiles for plasterboard false ceilings, the line comprising in sequence along a profile advancement direction:

• a profiling machine suitable to profile a metal strip to obtain a continuous metal profile;
• a cutting group placed downstream of the profiling machine and suitable to cut said continuous metal profile into pieces of predefined lengths which constitute said metal profiles for plasterboard false ceilings;
• a punching group placed downstream of the cutting group and is suitable to make holes on each metal profile along a longitudinal extension of the metal profile;
• an extraction system for extracting finished metal profiles from the punching group,
• a management and control unit suitable to control at least said cutting group and said punching group,
• wherein said punching group comprises:
• a first punching press of the portal type having an elongated punching head along a first operating direction;
• and
• a plurality of second punching presses with a C-support arranged downstream of said first punching press and aligned with each other to form a row along a second operating direction parallel to the first operating direction,
• each of said second punching presses having a respective punching head extending in length along the second operating direction for a fraction of a length of the elongated punching head of said first punching press, said management and control unit being configured to alternately operate in use said first punching press and at least one part of said second punching presses as a function of type or length of the metal profiles in output from the cutting group,
• wherein in each of said second punching presses the C-support comprises a support base and an arm extending cantilevered from said support base to support at a free end thereof the punching head above an abutment area formed on said support base, a profile unloading area being delimited on said support base between said abutment area and the arm, wherein the profile unloading area is not affected by movement of the punching head, and
• wherein said extraction system is integrated with said second punching presses and comprises a conveyor belt arranged to define a profile sliding plane along an extraction direction that is parallel to said second operating direction and passes through the respective unloading areas of the second punching presses, so as to allow extraction of the metal profiles laterally to said punching group at said second punching presses.