Bag dispensing and opening apparatus

Abstract

Abstract AN APPARATUS FOR DISPENSING AND OPENING SQUARE BOTTOM BAGS HAVING TIN TIE CLOSURES WHICH COMPRISES AN OIPEN TOP, GENERALLY RECTANGULAR MAGAZINE FORMING FRAME OF A SIZE TO SUPPORT A STACK OF THE COLLAPSED BAGS IN GENERALLY UPRIGHT POSITION WITH THE BOTTOM EDGES RESTING ON THE TOP RUN OF A BELT CONVEYOR IN THE FORWARDLY SLOPING BOTTOM OF THE FRAME, WHICH CONVEYOR IS OPERATED INTERMITTENTLY IN RESPONSE TO CHANGE IN PRESSURE AT THE FRONT OF THE STACK WHEN THE BOTTOM OF THE FOREMOST BAG OPENS AND MOVES PAST STOP MEMBERS IN THE BOTTOM OF A DISCHARGE OPENING IN THE UPRIGHT FORWARDLY INCLINED FRONT WALL OF THE FRAME SO AS TO URGE THE BAGS TOWARD THE DISCHARGE OPENING, THE FOREMOST BAG IN THE STACK BEING INITIALLY HELD BY STOP MEMBERS AND RELEASABLE LOCKING DEVICES WHICH ENGAGE BENEATH LATERALLY PROJECTING END PORTIONS OF THE TIN TIE STRIP WHILE AN AIR NOZZLE IS ACTUATED TO DIRECT A BLAST OF AIR DOWNWARDLY ALONG A CURVED GUIDE PLATE AND INTO THE MOUTH OF THE BAG SO AS TO BLOW OPEN THE BAG WHICH RELEASES THE BOTTOM AND PERMITS THE BAG TO SWING FORWARDLY TO A VERTICAL POSITION FOR FILLING, WITH THE TIN TIE SERVING AS A PIVOT SUPPORT. A FOOT SWITCH CONTROLS THE OPERATION OF THE AIR NOZZLE AND A MEANS CONNECTED TO THE TIN TIE END LOCKING DEVICES FOR UNLOCKING THE SAME AND RELEASING THE BAG, PERMITTING IT TO DROP FREE OF THE FRAME, WHEREUPON THE NEXT BAG IN THE STACK IS OPENED UP AUTOMATICALLY BY A SUCCEEDING BLAST OF AIR AND SWEINGS TO POSITION FOR FILLING.

Inventors

• 👤 Thomas E Piazze

Bibliographic Details