Binding machine with debinder

A debinding apparatus for a machine adapted to bind together sheets formed with first apertures spaced longitudinally on one edge thereof using a first narrow thermoplastic strip having studs projecting therefrom spaced complementary to said first apertures and a second narrow strip formed with second apertures spaced complementary to said first apertures, said machine comprising a frame, means for supporting said second strip with said sheets superimposed on said second strip and said first strip superimposed on said sheets with said studs extending through said first apertures and said second apertures and protruding below said second strip, a plurality of cutting elements, means for heating said cutting elements, actuating means for moving said cutting elements to cut off excess stud length and create an end thereon and to initiate the formation of heads on the ends of said studs, and means for forming heads on the ends of said studs which includes a plurality of fingers for engaging said ends and movement means for actuating said fingers from an inoperative to an operative position comprising a transverse axially elongated camshaft rotatably carried by said frame, a first cam mounted on said camshaft, a first cam follower riding on said first cam and means for interconnecting said first cam follower to said fingers,

• the improvement comprising means for causing relative movement between said first cam follower and said first cam from a first position where said first cam follower rides on said first cam to a second position where said first cam follower does not ride on said first cam, said relative movement means including means for slidably mounting said first cam on said camshaft for movement between a first position engaging said first cam follower and a second position not engaging said first cam follower, a bracket, means for coupling said bracket to said first cam to permit rotation of said first cam with said camshaft relative to said bracket, a solenoid carried by said frame with an armature movable between a first deenergized position and a second energized position, means for connecting said armature to said bracket for movement of said first cam between said first and second positions, and means operable to energize said solenoid.