Apparatus for the manufacture of boxes

Abstract

Abstract APPARATUS FOR FOLDING AND GLUING CARDBOARD BOX BLANKS OF DIFFERENT SIZES AND OF IRREGULAR DIE CUT SHAPE AS WELL AS THOSE OF REGULAR SLOTTED SHAPE, INCLUDING MEANS FOR STREAM FEEDING THE BOX BLANKS AT A RELATIVELY SLOW SPEED, APPLYING GLUE TO THE FLAPS, AND THEN FEEDING THE BLANKS INTO THE FOLDING SECTION AT HIGHER SPEED, THE FOLDING SECTION COMPRISING A CONVEYOR BELT, A HOLD-DOWN BAR ADJUSTABLY SPACED VERTICALLY THEREABOVE TO ACCOMMODATE VARIOUS FLUTE THICKNESSES WHILE APPLYING SUFFICIENT PRESSURE TO THE BLANKS TO PREVENT SLIPPING OF THE LATTER ON THE BELT, THE FOLDING SECTION ALSO COMPRISING A FIRST PAIR OF UPWARDLY AND TRANSVERSELY INWARDLY SLOPING FOLDING RODS ARRANGED TO UNDERLYINGLY ENGAGE THE SIDE PANELS OF THE BOX BLANK TO FOLD THEM UPWARDLY AND A SECOND PAIR OF DOWNWARDLY AND TRANSVERSELY INWARDLY SLOPING FOLDING RODS TO FOLD THE OUTER PANELS DOWNWARDLY AGAINST THE INNER PANELS, SAID RODS BEING TRANSVERSELY ADJUSTABLE TO ACCOMMODATE DIFFERENT SIZES OF BOXES AND TO PROVIDE FOR SEQUENTIAL DOWNFOLDING OF THE GLUE COATED FLAP AND THE OPPOSITE PANEL, AND A COMPRESSION SECTION COMPRISING OPPOSING VERTICALLY SPACED BELTS SUPPORTED AGAINST THE BOX SURFACES BY OPPOSING PRESSURE ROLLERS.

Inventors

• 👤 Fred Borders

Bibliographic Details