Buckle folding machine with a collecting folding pocket

A buckle-chute folding machine comprising:

• a folding mechanism including an upper draw-in roller and a lower draw-in roller forming a draw-in point defining an open passage gap, said folding mechanism also including at least one pair of folding rollers forming a folding point;
• sheet feed means for delivering a predetermined plurality of sheets of paper toward said draw-in point of said folding mechanism, said sheet feed means including a conveyor track directed toward said draw-in point and positioned immediately upstream of said draw-in point;
• a folding pocket with a paper stop positioned downstream of said draw-in point and equipped for collection and subsequent joint folding of the predetermined plurality of sheets of paper, a corresponding predetermined plurality of collected sheets pass together from said folding pocket through said folding point;
• stacking ramp means for receiving the sheets from said sheet feed means and moving the sheets to a conveying position vertically spaced above said conveyor track and any sheets lying on said conveyor immediately downstream of said stacking ramp means;
• additional sheet drive means for conveying a corresponding predetermined plurality of newly arriving sheets from said stacking ramp means in said conveying position from said stack ramp means through said draw-in point and into said folding pocket, said additional sheet drive means being positioned between said stacking ramp and said draw-in point in order to collect said predetermined plurality of sheets in said folding pocket and subsequently allow each of said predetermined plurality of sheets to be simultaneously folded by the buckle-chute folding mechanism.