Patent ID: 6929593

Claim:
A machine for spreading out cardboard boxes, comprising a material holding mechanism for holding cardboards thereon; a machine main body next to the material holding mechanism; the cardboards being conveyed into the machine main body from the material holding mechanism, and being spread out and folded at bottom shutter portions thereof in the machine main body; the cardboards being sealed at the bottom shutter portions with a adhesive tape applying member, and conveyed outside the machine main body after being sealed at the bottom; a sucking disk set arranged in the machine main body; the sucking disk set having a plurality of sucking disks for drawing one of four lateral portions of a cardboard thereto and moving the lateral portion so as to making the lateral portions form four substantially straight angles between them; the sucking disks being displaced with horizontally positioned cylinders to move the cardboard; a bending mechanism for bending bottom shutter portions of the cardboards with; the bending mechanism having front and rear tapping boards, and two lateral tapping rods for respectively bending front, rear and lateral shutter portions of bottoms of the cardboards with; the bending mechanism having an auxiliary support board connected with the front tapping board for pushing a front one of the lateral portions of the cardboards to make the lateral portions form four exactly straight angles between them before the tapping boards and tapping rods begin functioning; and a pushing mechanism arranged in the machine main body for pushing spread out cardboard boxes to conveying belts after the shutter portions of bottoms of the cardboards are bent and after the boxes are released from the sucking disks; the boxes being sealed at bottoms with the adhesive tape applying member after being pushed to the conveying belts; the pushing mechanism having a pushing board for touching the cardboards; the pushing mechanism having a pushing cylinder for moving the pushing board with.