B - Operations – Transporting – 41 – F
Patent
B - Operations, Transporting
41
F
B41F 13/14 (2006.01)
Patent
CA 2503756
According to this method, an angular register mark (CR) is arranged on each cylinder (C1..Cn), their positions are measured with respect to a zero reference and an angular printing mark (RM, CM) characteristic of the position of the engraving is associated to each cylinder (C1..Cn). The data of the job to be run are stored, the respective angular displacements of the engraved cylinders (C2..Cn) are indexed with respect to a reference cylinder (C1) in accordance with the said job, by determining the web length separating two printing points of two successive engraved cylinders (C1..Cn), this length is divided by the peripheral length of the cylinder and the remaining amount of the division is used for determining the angular indexing. Each cylinder (C1..Cn) is then brought into its indexed position, it is disconnected and all the cylinders (C1..Cn) are simultaneously reconnected.
Giancaterino Lucio
Rawyler Alexandre
Bobst S.a.
Smart & Biggar
LandOfFree
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