Method and apparatus for manufacturing a press-formed object

A manufacturing apparatus for a nozzle hole plate having a first hole and a second hole, the first and second holes being incline at an acute angle with respect to a perpendicular axis on the nozzle hole plate and being directed in opposite directions, the manufacturing apparatus comprising:

• a feed mechanism for feeding a band-like work piece along a longitudinal direction of the band-like work piece;
• a die unit located on a path through which the band-like work piece is fed, the die unit having a die set including a punch and a die for punching the first and second holes in the band-like work piece, the punch and the die defining a punching axis inclined at the acute angle with respect to a perpendicular axis on a plane of the band-like work piece;
• a first press machine supported above the die unit for driving the punch along the punching axis;
• a table unit located below the die unit for supporting the die unit, the table unit including a rotary mechanism for rotating only the die unit to at least two positions on which the punching axis is oriented in the opposite directions corresponding to the first and second holes;
• wherein
• the feed mechanism includes a first coil stand for supporting the band-like work piece in a coil fashion, and a second coil stand for supporting the band-like work piece in a coil fashion, the first and second coil stands being located on opposite sides of the die unit along the feeding path, and the feed mechanism feeding the band-like work piece in both directions between the first and second coil stands;
• the table unit rotates the die unit after the feed mechanism completely feeds the band-like work piece in one of the directions;
• the table unit includes an X-Y table mechanism for moving the die unit in a horizontal plane and a θ table for rotating the die unit;
• and
• the θ table enables the punching axis of the punch and the die to be directed in the opposite directions.