Folder with signature removal and slowdown process
View Patent ↗A folder includes a cylinder having a first gripping device receiving a folded edge of a signature and rotating the signature at a first surface speed. A conveyor presses the signature against the outer surface and the conveyor contacts the signatures at a second surface speed slower than the first surface speed. The present invention also provides a method for removing signatures from a cylinder.
1. A method for removing signatures from a cylinder comprising the steps of:
transporting the signatures around a cylinder at a first surface speed, the signatures being gripped at a folded edge by a gripping device;
pressing the signatures at a first location with a first conveyor against the cylinder, the first conveyor at the first location moving at a second surface speed lower than the first surface speed;
releasing the signatures from the gripping device; and
further transporting the signatures.
2. The method as recited in claim 1 wherein the further transporting step includes receiving the signatures at a second conveyor.
3. The method as recited in claim 1 wherein the further transporting step includes using a stationary or fixed stripper located next to the cylinder.
4. The method as recited in claim 1 wherein the further transporting step includes using a moving support located within a circumferential groove of the cylinder.
5. The method as recited in claim 1 wherein the signatures are further transported at a speed lower than the first surface speed.
6. The method as recited in claim 1 wherein the second surface speed is between 75% and 95% of the first surface speed.
7. The method as recited in claim 1 wherein the cylinder is a jaw cylinder.