公开(公告)号：EP1330404B1

公开(公告)日：2006-12-06

申请号：EP01966361.6

申请日：2001-08-28

申请人： PITNEY BOWES INC.

发明人： JANATKA, Karel, J. ,  SUSSMEIER, John, W. ,  WRIGHT, William ,  ANDREYKA, James, B. ,  ROZENFELD, Boris

IPC分类号： B65H3/12 ,  B65H3/10

CPC分类号： B65H3/10 ,  B65H2301/321 ,  B65H2301/324 ,  B65H2406/3614 ,  B65H2701/1916

摘要： A method and apparatus for feeding envelopes in an envelope insertion machine, wherein a rotatable pneumatic feeding head (40) is used to pick up an envelope from an envelope stack by a negative air pressure. The pneumatic feeding head is also used to move the envelope to a pair of take away rollers (26) so that the envelope picked up by the feeding head can be moved further away from the envelope stack. It is preferred that the feeding head includes an outer cylinder (50) having a row of vacuum ports (42) and an inner cylinder (60) having a plurality of apertures (62) for air passage operatively connected to a vacuum pump. The inner cylinder (60) is independently rotatable relative to the outer cylinder (50) so that the negative air pressure is provided to the vacuum ports (42) when the apertures (62) of the inner cylinder (60) are aligned with the vacuum ports (42), and the negative air pressure is turned off from the vacuum ports (42) when the apertures (62) and the vacuum ports (42) are out of alignment.

公开(公告)号：EP1330404A1

公开(公告)日：2003-07-30

申请号：EP01966361.6

申请日：2001-08-28

申请人： Pitney Bowes Inc.

发明人： JANATKA, Karel, J. ,  SUSSMEIER, John, W. ,  WRIGHT, William ,  ANDREYKA, James, B. ,  ROZENFELD, Boris

IPC分类号： B65H3/12

CPC分类号： B65H3/10 ,  B65H2301/321 ,  B65H2301/324 ,  B65H2406/3614 ,  B65H2701/1916

摘要： A method and apparatus for feeding envelopes in an envelope insertion machine, wherein a rotatable pneumatic feeding head (40) is used to pick up an envelope from an envelope stack by a negative air pressure. The pneumatic feeding head is also used to move the envelope to a pair of take away rollers (26) so that the envelope picked up by the feeding head can be moved further away from the envelope stack. It is preferred that the feeding head includes an outer cylinder (50) having a row of vacuum ports (42) and an inner cylinder (60) having a plurality of apertures (62) for air passage operatively connected to a vacuum pump. The inner cylinder (60) is independently rotatable relative to the outer cylinder (50) so that the negative air pressure is provided to the vacuum ports (42) when the apertures (62) of the inner cylinder (60) are aligned with the vacuum ports (42), and the negative air pressure is turned off from the vacuum ports (42) when the apertures (62) and the vacuum ports (42) are out of alignment.