Apparatus for folding and stacking paper products

• US 4,475,730 A
• Filed: 03/23/1983
• Issued: 10/09/1984
• Est. Priority Date: 03/23/1983
• Status: Expired due to Term

• Current Assignee: C.G. Bretting Manufacturing Co., Inc.
• Original Assignee: C.G. Bretting Manufacturing Co., Inc.
• Inventors: Trogan, John F.
• Primary Examiner(s): Eickholt, E. H.
• Application Number:
  US06/477,898
• Time in Patent Office: 566 Days
• Field of Search: 270/41-44, 270/32, 270/5, 270/6, 270/10, 270/20.1, 270/58
• US Class Current: 270/41
• CPC Class Codes: B65H 29/241 Suction devices
• CPC Class Codes: B65H 29/51 piling by collecting on the periphery of cylinders

Abstract

A method and apparatus for continuously folding a plurality of webs of material such as paper or the like, cutting the webs into segments of predetermined length, combining the segments into a group and then stacking the groups together until a desired number of segments are present in the stack after which the stack is discharged while a new stack is being started.

Claims

1. An apparatus for continuously folding, combining, and stacking a plurality of webs of flexible material comprising a frame, folding means on said frame for folding a plurality of webs of flexible material to a desired cross-sectional configuration, first pull roll means for combining first and second folded webs and directing the same along a first path, second pull roll means for combining third and fourth folded webs and directing the same along a second path, anvil roll means and cooperating cutting means disposed along each path for cutting said webs into segments of predetermined length, a pair of transfer rolls having means for stripping the segments from said anvil rolls, said transfer rolls cooperating with each other to combine the first and second segments of said first path with the third and fourth segments of said second path to form a group of segments, packer roll means having means for stripping said group of segments from said transfer rolls, and means for discharging said group of segments from said packer roll means to form a generally vertical stack of superposed segments.

2. The folding, combining, and stacking apparatus of claim 1 including vacuum operated means on said packer roll means for removing said group of segments from said transfer rolls.

3. The folding, combining, and stacking apparatus of claim 2 including pin means carried by said packer roll means to assist in holding said group of segments on said packer roll means.

4. The folding, combining, and stacking apparatus of claim 1 including table means located below said packer roll means for receiving said group of segments from said packer roll means, and said means for discharging said group of segments from said packer roll means includes a plurality of packer fingers.

5. The folding, combining, and stacking apparatus of claim 4 including means for lowering said table means as the stack of superposed segments build thereon, means for discharging the stack of segments from said table means after a predetermined number of segments have accumulated in the stack, and means for raising said table means when the stack of segments have been discharged therefrom.

6. The folding, combining, and stacking apparatus of claim 1 in which said packer roll means includes a pair of end members having disk means equally spaced therebetween, and at least certain of said end members and disk means having a plurality of radially disposed vacuum holes communicating with a source of vacuum.

7. The folding, combining, and stacking apparatus of claim 1 in which said folding means folds each of said webs to a "C" shaped cross-sectional configuration.