B - Operations – Transporting – 65 – H
Patent
B - Operations, Transporting
65
H
270/39
B65H 3/08 (2006.01) B65H 3/46 (2006.01) B65H 3/64 (2006.01) B65H 5/24 (2006.01) B65H 29/66 (2006.01) B65H 29/68 (2006.01)
Patent
CA 1301205
ABSTRACT OF THE DISCLOSURE A vacuum shingler for a plurality of sheets traveling in succession through an upstream infeed nip is provided with a vacuum modulating control which applies sheet slow-down forces primarily to only the tail ends of the sheets. The control modulates the vacuum so that it is at a basically unshingling low or reduced level when the leading end portion of the sheet is adjacent the opening(s), and is at a substantially increased high level when the tail end portion of the sheet is adjacent the opening(s) so that basic shingling occurs. The vacuum modulating control includes devices for sensing the position, speed and length of the traveling sheets, with this information being processed to provide an output signal which controls the speed of a shaft with which a rotary valve is associated. The valve is disposed within the vacuum shingler plenum and modulates the flow of air through the plenum opening(s) in correlation with the determined information. The vacuum shingler assembly is disposed so that its sheet input is substantially horizontally aligned with the discharge of the infeed nip . Furthermore, the assembly is disposed with its conveyor portions generally horizontal, rather than inclined, so that even the middle of a sheet is supported thereby as the sheet spans the conveyor.
559701
Marschke Carl Ronald
Rodewald Dennis William
Thomas Richard Harry
Marks & Clerk
Marquip Inc.
LandOfFree
Shingling of delicate conveyed sheet material does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Shingling of delicate conveyed sheet material, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Shingling of delicate conveyed sheet material will most certainly appreciate the feedback.
Profile ID: LFCA-PAI-O-1306695