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US 6,142,069 AGranted
Devices and method for conveyance of sheets
AssigneeDe La Rue Giori S.A.
InventorsJohann Emil Eitel, Johannes Georg Schaede
Life of this patent
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Abstract
A device for conveying sheets in a sheet-processing machine uses a processing cylinder having a circumferential speed. Conveyor belts cooperate with the cylinder for transporting sheets with the belts arranged between the processing cylinder and a chain conveyor with a gripper system. A ratio between the transportation speed of the processing cylinder can be changed by use of a drive of the conveyor belts in order to vary the distance between successive sheets.
Claims10
Device for conveying sheets (23;
- 25) in a sheet-processing machine with a processing cylinder (14) having a circumferential speed (u14) and with conveyor belts cooperating with said cylinder for transporting sheets and being arranged between the processing cylinder (14) and a chain conveyor with gripper system (44), wherein a ratio between the transportation speed (v31) of the conveyor belts (31) and the circumferential speed (u14) of the processing cylinder (14), i.e. v31/u14, can be changed by means of a drive of the conveyor belts in order to vary the distance between successive sheets.
Method for conveying sheets (23;
- 25) wherein a band of foil (49) together with sheets (23, 25) are guided to a stamping cylinder (48) and away from said cylinder, wherein the band foil (49) is then guided with the sheets (23;
- 25) to conveyor belts (31), the sheets (23;
- 25) being between the band foil (49) and the conveyor belts (31) an wherein the band foil (49) and sheets (23;
- 25) are then guided to a cooling roller (32) by means of the conveyor belts (31).
1 more element
Dependencies are inferred from the claim text.