A system for manufacturing sheets of paper and for collecting the sheets of paper into stacks, the system comprising:
- a sheet web delivery station having a support frame on which a roll is rotatably mounted, the roll comprising a wound continuous paper sheet web that is unwound for processing the roll in the system;
- a cutting station downstream of the sheet web delivery station for cutting the paper sheet web into sheets of paper;
- a stack-forming station for stacking the sheets of paper;
- and
- a suction conveyor device for transporting the sheets of paper from the cutting station to the stack-forming station, wherein the suction conveyor device comprises:
- a support frame supporting the suction conveyor device on a subsurface;
- a suction arrangement arranged in the support frame and having a suction side on which low pressure is generated;
- and
- a conveying means arrangement that comprises a continuously circulating, individual, single-piece flexible conveying means comprising a flexible flat material provided with holes and having an inner side with which the conveying means moves along the suction side of the suction arrangement in a direction of conveyance of the sheets of paper and having an outer side that receives the sheets of paper in an active area of the suction side of the suction arrangement;
- wherein the suction arrangement and the conveying means arrangement comprise at least one transport path with a total width transverse to the direction of conveyance and defined in the active area of the suction side of the suction arrangement;
- wherein the conveying means has two lateral edges running in the direction of conveyance that are spaced apart from each other by a distance that is at least equal to the total width of the transport path, so that the conveying means extends at least over the total width of the transport path;
- wherein deflecting means are provided on an inlet side of the suction conveyor device that is upstream in the direction of conveyance, and wherein deflecting means are provided on an outlet side of the suction conveyor device that is downstream in the direction of conveyance, both deflecting means deflecting the conveying means around a respective deflection axis, and the suction side of the suction arrangement is located between the deflecting means;
- wherein a means is provided for generating a curvature in the conveying means oriented toward the outer side and running approximately transverse to the direction of conveyance in the active area of the suction side of the suction arrangement;
- wherein at least one of the deflecting means has a plurality of rollers lying side-by-side over the total width of the transport path and substantially transverse to the direction of conveyance, forming the means for generating the curvature and having respective axes of rotation running transverse or at an angle to the direction of conveyance, wherein the plurality of rollers is arranged such that a distance of a circumferential outer surface of at least one roller from the respective deflection axis of the at least one of the deflecting means is less for one or more outer rollers, which are arranged proximate at least one of the lateral edges of the conveying means, than for one or more inner rollers, which are arranged between the lateral edges of the conveying means;
- and
- wherein at least one supporting roller or cylinder is arranged between the inlet side and the outlet side and has an axis of rotation running substantially parallel to the transport path and transverse or at an angle to the direction of conveyance to support an upper run of the conveying means defining the transport path.