Patent ID: 6145359
Filing Date: 2000-11-14
Classification: B21D,B23D,B23P,B26F

Abstract:
A device for forming a cutting blade for prints, comprising:a strip roll unit having a sufficient amount of metal strip and being rotatable in a direction by intermittent drive means, thus supplying the metal strip at a constant rate;guide rollers horizontally and vertically guiding and unbending the metal strip from the strip roll unit;two guide blocks provided in front of said roll unit and adapted for guiding the metal strip from guide rollers;a bridge cutting mold detachably and selectively installed at one side of the two guide blocks and used for forming bridge notches on the metal strip, said bridge cutting mold comprising:a housing having both a strip passing hole and a jig guide slot, said strip passing hole perpendicularly meeting said jig guide slot; anda spring-biased jig movably positioned in said jig guide slot, thus selectively and quickly movable in the jig guide slot so as to form the bridge notches on the metal strip passing through the strip passing hole;a guide bending block provided in front of said bridge cutting mold and having a bending nozzle used for distributing the metal strip from said bridge cutting mold;a guide bending pin vertically positioned in front of said bending nozzle, said bending pin being vertically and controllably movable and rotatable in opposite directions, thus bending the metal strip from the bending nozzle into a desired pattern;a carrier movably held by two vertical guide rails standing in front of said bending pin, said carrier being movable downward under the guide of the two guide rails by a first cylinder actuator in response to a bending process ending signal;a strip holder mounted to a bottom center of said carrier and adapted for vertically holding said metal strip from the bending pin;a swing cutter hinged to said carrier and positioned in front of said strip holder, said swing cutter being selectively rotated by a second cylinder actuator in accordance with a detected angle of the metal strip, thus being positioned at a cutting process waiting position;a table provided with a slot for selectively holding a lower end of said strip holder with the carrier fully descending, said table also having a horizontal guide groove in front of said slot; anda movable piece slidably set in said horizontal guide groove of the table and having a locking slot at a top surface, said movable piece being quickly movable in opposite directions in said guide groove with a lower end of said cutter being held by the locking slot of the movable piece, thus quickly cutting the metal strip into cutting blades.