Patent ID: 6887330
Filing Date: 2005-05-03
Classification: H01L,H05K,Y10T

Abstract:
1. A machine for punching out assembled electronic circuitry parts from a carrier tape with sprocket holes in a predetermined pitch along sight and left side edges thereof, including a tape feeding station arranged to reel off an electronic parts carrier tape having a plural number of assembled electronic part sections at predetermined intervals in the longitudinal direction thereof, and a tape punching station arranged to punch out said electronic part sections successively from said carrier tape, characterized in that said machine comprises: at least a pair of reel support shafts provided separately at said tape feeding station to reel off a carrier tape from a second supply reel to continue tape feed as soon as a carrier tape from a first supply reel is consumed to a last electronic part section; and a tape switcher located in the course of a tape supply route between said tape feeding station and said tape punching station, and provided with upper and lower tape holder members movable toward and away from each other across said tape supply route and back and forth in the direction of tape supply, said upper and lower tape holder members being adapted to releasably hold said first and second carrier tapes from opposite sides in an overlapped state and over a length corresponding to two units lengths of said electronic parts section on said carrier tapes, active and passive cutter blades provided in confronting positions on said upper and lower tape holder members to cut said first carrier tape at a longitudinally intermediate position, and splicing means adapted to splice a head end portion of said second carrier tape to a tail end portion of said first carrier tape in an overlapped state.