Patent ID: 7815180
Filing Date: 2010-10-19
Classification: B42B

Abstract:
1. A device for manufacturing thread-stitched book blocks comprised of folded printed sheets, the device comprising: a stitching saddle; a feed apparatus for the printed sheets; a conveying apparatus disposed on the stitching saddle and arranged to receive printed sheets from the feed apparatus and transport the printed sheets in a conveying direction astride the stitching saddle into a stitching position; a stitching apparatus arranged at a lateral spacing from the stitching saddle, wherein the stitching saddle is driven in an oscillating manner transversely with respect to the conveying direction of the printed sheets transported by the conveying apparatus, wherein the stitching apparatus is supplied with printed sheets by the stitching saddle, wherein the conveying apparatus is controlled so that at least one of the conveying speed or the stitching position of the printed sheets on the stitching saddle can be changed or adapted to different properties of the printed sheet, wherein the printed sheets are transported by the conveying apparatus to the stitching position on the stitching saddle while the stitching saddle is driven in an oscillating manner, wherein the conveying apparatus includes a toothed-belt reduction gear, two circulating conveying belts which form a conveying nip via working sections, and adjacent deflection rollers having drive sprockets operatively arranged with the respective conveying belts, wherein the toothed-belt reduction gear comprises a double toothed belt that is drive-connected to the drive sprockets of the adjacent deflection rollers; a computer-connected controller; and a controlled rotation electric motor, wherein the controlled rotation electric motor is controlled by the computer-connected controller and is drive connected to the conveying apparatus via the toothed-belt reduction gear.