Punching device

A punching device comprising:

• a die seat having first and second end portions that are opposite to each other in an insertion direction;
• a punch seat disposed above said die seat and having opposite first and second end portions that are respectively disposed adjacent to said first and second end portions of said die seat, said punch seat and said die seat cooperatively defining a sheet-receiving gap therebetween;
• an interconnecting member interconnecting said first end portion of said die seat and said first end portion of said punch seat and confining one side of said sheet-receiving gap;
• a punch disposed movably on said punch seat so as to be movable relative to said die seat in a vertical direction that is perpendicular to the insertion direction;
• a first pivot part extending from at least one of said first end portion of said die seat and said first end portion of said punch seat;
• a second pivot part opposite to said first pivot part in the insertion direction and extending from one of said second end portion of said punch seat and said second end portion of said die seat;
• a lever mechanism including first and second levers, said first lever having opposite first and second ends, a top wall that extends from said first end of said first lever to said second end of said first lever, two first side walls that respectively have lower ends and that extend downwardly and respectively from two opposite sides of said top wall to said lower ends, two side flanges that extend respectively from said lower ends of said first side walls away from each other, and a protrusion that is disposed between and that is spaced apart from said first side walls, that protrudes downwardly from said top wall of said first lever and that abuts against said punch, said first end of said first lever being pivoted to said first pivot part, said first side walls being opposite to each other in a transverse direction that is perpendicular to the insertion direction and the vertical direction, said top wall covering a top side of said punch and spanning said punch in the transverse direction, said second lever having opposite first and second ends, a top wall that extends from said first end of said second lever to said second end of said second lever, and two second side walls that extend downwardly and respectively from two opposite sides of said top wall of said second lever and that abut respectively against said side flanges for driving rotation of said first lever relative to said first pivot part, said second end of said second lever being pivoted to said second pivot part;
• and
• an urging member for urging said punch.