System and method for folding paper carriers with attached cards
Folder systems and related methods are provided for accurately and efficiently folding a paper carrier that has a card attached without bending or dislodging the card from the carrier. A movable fold chute receives a portion of the carrier with the card attached and allows the carrier to fold while protecting the card portion of the carrier. The fold chute moves between different positions which allow the carrier to enter and exit through folding rollers along a generally straight paper path without forcing the cards around small radii, thereby preventing damage to the cards or causing them to separate from the carrier sheet.
1. A method for folding a carrier with a card attached, the method comprising:
providing a carrier having a first portion and a second portion, the first portion comprising the attached card;
feeding the first portion of the carrier into a fold chute without bending the attached card;
repositioning the fold chute to create a buckle in the second portion of the carrier; and
ingesting the buckled second portion of the carrier into a folding nip aligned with the repositioned fold chute to create a fold in the second portion.
2. The method of claim 1 , wherein the feeding step is facilitated by rotating a first roller and a second roller to cause advancement of the carrier through a feeding nip formed at an interface between the first roller and the second roller.
3. The method of claim 2 , further comprising pausing the first portion within the fold chute before reaching a distal end of the fold chute after the feeding step.
4. The method of claim 3 , wherein pausing the first portion within the fold chute before reaching the distal end causes advancement of the first portion to stop relative to the second portion.
5. The method of claim 4 , wherein the second portion of the carrier continues advancement through the feeding nip after the first portion has paused within the fold chute.
6. The method of claim 5 , wherein the continued advancement through the feeding nip causes the buckle in the second portion to grow.
7. The method of claim 6 , wherein the buckle grows towards the folding nip until it is ingested by the folding nip.
8. The method of claim 2 , wherein the folding nip is formed at an interface between the second roller and a third roller.
9. The method of claim 8 , wherein the first roller, the second roller, and the third roller rotate at a constant speed throughout the method.
10. The method of claim 2 , wherein during the feeding step the fold chute is aligned with the feeding nip such that the carrier enters the fold chute at an angle θ, wherein θ is between 0 degrees and 45 degrees with respect to a carrier path defined by the feeding nip.
11. The method of claim 10 , wherein repositioning comprises rotating the fold chute to align the fold chute with the folding nip such that the carrier exits the fold chute at an angle θ, wherein θ is between 0 degrees and 45 degrees with respect to a carrier path defined by the folding nip.