Abstract: A thread stitching machine to process signatures into book blocks includes a transport system for the signatures including a transport section on which the signatures are straddling for supply to a stitching station. The transport section includes an auxiliary saddle and a driven, continuously moving conveying chain to drive the auxiliary saddle. The conveying chain has spaced-apart, integrated pusher elements. A downstream installed stitching station includes a freely moving stitching saddle immediately following the auxiliary saddle. The stitching saddle includes a separate conveying device for the signatures, operated by a drive. A detection device is arranged at a transition between the auxiliary saddle and the stitching saddle to detect a position of the signature and a time which the signature passes by. The conveying chain is operated with a change in speed that depends on different sheet lengths following each other directly in a sequence of signatures.

Abstract: A thread stitching machine to process signatures into book blocks includes a transport system for the signatures including a transport section on which the signatures are straddling for supply to a stitching station. The transport section includes an auxiliary saddle and a driven, continuously moving conveying chain to drive the auxiliary saddle. The conveying chain has spaced-apart, integrated pusher elements. A downstream installed stitching station includes a freely moving stitching saddle immediately following the auxiliary saddle. The stitching saddle includes a separate conveying device for the signatures, operated by a drive. A detection device is arranged at a transition between the auxiliary saddle and the stitching saddle to detect a position of the signature and a time which the signature passes by. The conveying chain is operated with a change in speed that depends on different sheet lengths following each other directly in a sequence of signatures.

Abstract: A device for producing thread-stitched book blocks from a stack of signatures are arranged flat one on top of the other and are stitched together by stitched seams formed at right angles to the folds by a binding thread passed repeatedly in double strands through the folds of the signatures. The device has a first stitching needle that inserts the binding thread and a second stitching needle that draws the binding thread through the fold from the inside. A punch needle, which passes through the fold from the inside edge to form a punched hole, is arranged opposite the first and second stitching needles, each of which forms a stitched seam. The section of the needle that is used to pierce a fold has a polygonal cross-sectional shape.

Abstract: An apparatus for thread-stitching of folded print products includes a sewing station in which individual print products are stitched along the fold and print products are then sewn together along the spine to form a book block. A pivoting saddle supplies individual print products straddling thereon to the sewing station. A feeder separates folded print products from a stack of folded print products. A feeding arrangement includes a feed path connecting the feeder to the pivoting saddle, and has a feeding end that cooperates with the feeder to supply the individual print products to the feed path and a discharge end that operates to supply the individual print products to the pivoting saddle. The sewing station, as seen from the top, is arranged on the machine frame of the apparatus, between the feeding end of the feeding arrangement and the pivoting saddle.

Abstract: A device for producing thread-stitched book blocks from a stack of signatures are arranged flat one on top of the other and are stitched together by stitched seams formed at right angles to the folds by a binding thread passed repeatedly in double strands through the folds of the signatures. The device has a first stitching needle that inserts the binding thread and a second stitching needle that draws the binding thread through the fold from the inside. A punch needle, which passes through the fold from the inside edge to form a punched hole, is arranged opposite the first and second stitching needles, each of which forms a stitched seam. The section of the needle that is used to pierce a fold has a polygonal cross-sectional shape.

Abstract: A device for manufacturing thread-stitched book blocks which comprise folded printed sheets has a conveying apparatus which transports the printed sheets astride a stitching saddle into a stitching position and to which the printed sheets are fed. A stitching apparatus is arranged at a lateral spacing from the stitching saddle which can be driven in an oscillating manner and can be supplied with printed sheets by the stitching saddle. The conveying apparatus is controlled in order to change the conveying speed and/or the stitching position of the printed sheets on the stitching saddle, in that the conveying apparatus is drive-connected to a controlled-rotation electric motor which is controlled by a computer-connected controller.