Apparatus for manufacturing a metal plate for a duct, including mesh-type beads

An apparatus for manufacturing a metal plate having mesh-type beads for a duct, the apparatus comprising:

• a frame (F) constituted by connecting metal pieces in a form of a box;
• roll stands (F2) vertically installed on a top surface of the frame (F) while being spaced apart from each other by a predetermined interval;
• upper and lower bead processing rolls (2 and 4) provided at both ends thereof with shafts (S1 and S2) coupled to the roll stands (F2) and formed on outer surfaces thereof with embossments and intaglios having shapes corresponding to shapes of the mesh-type beads;
• a feeding part (100) including a plurality of idle rollers (110) to stably feed metal plates from a rear of the upper and lower bead processing rolls (2 and 4);
• first and second gears (S1-1 and S2-2) coupled to the shafts (S1 and S2) of the upper and lower bead processing rolls (2 and 4);
• a pulley (76) coupled to the second gear (S2-2);
• and
• a driving unit (7) including a driving motor (72) connected to the pulley (76) through a chain (74).