摘要:
The invention relates to apparatus for treating a multi-panel or multi-sheet web of paper or similar electrostatically chargeable material. A multi-layer web of such material is advanced toward and through at least one cutter to yield a succession of stacks which are ready for assembly into piles and/or for other processing. The arrangement for moving the web and there-upon the stacks lengthwise includes a first unit up-stream and a second unit downstream of the cutter, and an ionizing unit is installed adjacent the path of the web and stacks, either between the first moving unit and the cutter or between the cutter and the second moving unit. In either event, the ionizing unit is closely adjacent the cutter. If the stacks are to be assembled into a succession of piles downstream of the second moving unit, the apparatus further comprises an electrostatic discharging device in the region of the pile forming station.
摘要:
An apparatus for producing book blocks includes a station to dispense a sheet web that moves in longitudinal direction and can be imprinted. A printing station has two cylinders that rotate with a circumferential speed corresponding to the movement speed of the web and function to support in a contacting manner the web with their circumferential surfaces over a specified angle. Contactless printing heads are assigned to each cylinder, arranged at a distance to the circumferential surface of the associated cylinder, and positioned side by side and at least essentially transverse to the circumferential and rotational direction of the associated cylinder. The printing head faces are oriented substantially tangential to the associated cylinder and the center lines of the printing heads are oriented to project substantially radially to the circumferential surface of the associated cylinder. The web is guided so that when it rests on one cylinder, one side of the web is imprinted and when it rests on the other cylinder, the other side of the web is imprinted. A desired web tension is created in the printing station. A cutting station is arranged downstream of the printing station to cut the printed web in longitudinal and transverse directions to form sheets having a predetermined height and width. An overlapping station arranges the cut sheets into an overlapping formation. A station collects the sheets to produce stacks that form book blocks.
摘要:
An apparatus for producing book blocks includes a station to dispense a sheet web that moves in longitudinal direction and can be imprinted. A printing station has two cylinders that rotate with a circumferential speed corresponding to the movement speed of the web and function to support in a contacting manner the web with their circumferential surfaces over a specified angle. Contactless printing heads are assigned to each cylinder, arranged at a distance to the circumferential surface of the associated cylinder, and positioned side by side and at least essentially transverse to the circumferential and rotational direction of the associated cylinder. The printing head faces are oriented substantially tangential to the associated cylinder and the center lines of the printing heads are oriented to project substantially radially to the circumferential surface of the associated cylinder. The web is guided so that when it rests on one cylinder, one side of the web is imprinted and when it rests on the other cylinder, the other side of the web is imprinted. A desired web tension is created in the printing station. A cutting station is arranged downstream of the printing station to cut the printed web in longitudinal and transverse directions to form sheets having a predetermined height and width. An overlapping station arranges the cut sheets into an overlapping formation. A station collects the sheets to produce stacks that form book blocks.