Patent ID: 6314852
Filing Date: 2001-11-13
Classification: B26D,B26F,H05K,Y10T

Abstract:
A gang punch tool assembly for forming openings in greensheets comprising:a punch platen having through openings therein to allow movement of the punch platen vertically along vertically disposed guide rods;vertically disposed guide rods;means to move the punch platen vertically downwardly and upwardly along the guide rods;locking blocks to lock the punch platen in a desired gang punch position;a gang punch secured to the lower surface of the punch platen having a plurality of actuatable punch pins therein, which when the gang punch is actuated the pins move vertically upwardly and downwardly;a die platen having through openings therein to allow movement of the die platen vertically along the vertically disposed guide rods;reciprocating means attached to the lower surface of the die platen for moving the die platen upwardly and downwardly along the guide rods;a die secured to the upper surface of the die platen, the die having a plurality of openings corresponding to the punch pins in the gang punch;a greensheet feeder device to feed a greensheet to the die;a punched greensheet removal device for removing a punched greensheet from the die;structural means for carrying the punch platen, die platen, guide rods, reciprocating means, greensheet feeder device and punched greensheet removal device;means to actuate the punch pins in the gang punch to move the punch pins upwardly and downwardly;wherein when a greensheet is moved from the greensheet feeder device to the die, the gang punch is locked in position by the locking blocks and the gang punch and die are mated, the gang punch is then actuated to force the punch pins downward through the die openings to form openings in the greensheet, the gang punch is then deactuated retracting the punch pins upwardly out of the die and greensheet and the die platen is moved away from the gang punch and the punched greensheet removed by the punched greensheet removal device, with the above steps being repeated to punch the desired number of greensheets.