摘要:
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.
摘要:
A transporting mechanism includes a link chain and clamps which are attached to a chain link of the link chain and which are capable of gripping at least one printed product. At least two clamps are attached to each chain link of the link chain, wherein the clamps in the link chain are spaced apart from one another by equal spacings.
摘要:
A plate cylinder adapted for a rotary printing press has a cylinder jacket and a recess followed by a clamping channel which extend at least approximately parallel to the rotational axis of the plate cylinder inside the cylinder jacket. The printing plate has a leading end and a trailing end which are both secured inside the recess. A trailing end region of the printing plate includes two parallel bent edges extending transverse to the rotational direction of the plate cylinder. One bent edge is formed by a section of printing plate fitting against the cylinder jacket and another section of the printing plate that projects into the clamping channel which together enclose approximately a right angle. The other bent edge is formed by the section of printing plate projecting into the clamping channel and an end section of the printing plate extending through the clamping channel.
摘要:
An arrangement for producing stack bundles from signatures includes a horizontal stack deposit support, a conveyor to supply a flow of signatures to the stack deposit support for formation of a signature stack having a front end and a back end, and a supporting device adapted to form a stack bundle having a front end and a back end. The supporting device comprises a first support element adapted to rise from below the stack deposit support and act on the front end of the stack, a second support element adapted to rise from below the stack deposit support and act on the back end of the stack bundle, and a third support element arranged to rise from below the stack deposit support in a first location to act on the front end of the stack and in a second location to act on the front end of the stack bundle.
摘要:
A device for pushing a stack of printed products from a table on which the stack is stacked has a stacking receptacle provided on the table and receiving the printed products for stacking. The stacking receptacle is defined by four lateral edges of the printed products and has two opposed lateral guide walls viewed in a pushing direction of pushing out the stack of printed products. The guide walls each have vertical guide rails moveable along the guide walls in the pushing direction. The guide rails on the opposed guide walls are positioned opposite one another in guide rail pairs forming a forward receptacle boundary and a rearward receptacle boundary in the pushing direction. The rearward receptacle boundary in the pushing direction is a pushing device for the stack of printed products.
摘要:
A three knife trimmer has a front knife and two lateral knives. A drive device drives the front knife and the two lateral knives such that a front cut and at least one lateral cut are performed with phase displacement by the front knife and at least one of the two lateral knives on the material to be cut. The drive device has at least one drive curve. At least two pivotable levers engage the drive curve, wherein the front knife and at least one of the two lateral knives are drivingly connected to the at least two pivotable levers.