摘要:
A printing press includes an assembly and a cam mechanism for moving at least one part of the assembly. A cam of the cam mechanism has a curvature course with points, in particular bends or jumps, which are not constantly differentiable within a movement region of the cam. The cam mechanism can include an actuator for the temporal displacement of jolts which are induced by the points that are not constantly differentiable to the at least one part of the assembly. An adaptation of the movement which is produced to the operating state of the printing press is possible, with the result that a considerable reduction can be achieved in vibrations for all printing speeds.
摘要:
A gripper control gearing has a reduced complexity for providing adjustments. Stops are provided on a reversing drum for a slide that supports cam rollers. Pinions with a helical toothing are arranged on a gripper shaft and on a gripper tube. Such a simplified arrangement allows for easier adjustments of the gripper system.
摘要:
An apparatus for the vertical adjustment of combined front/top lays in a sheet processing machine includes a front/top lay carrier shaft carrying the front/top lays jointly in such a way that it can be pivoted with respect to a front/top lay drive shaft, or thrust joints disposed in carriers or coupling links for the front/top lays in such a way that they effect a lengthening of the carriers or coupling links in order to adjust the front/top lays. A sheet-fed rotary printing press having the apparatus, is also provided.
摘要:
A printing press includes an assembly and a cam mechanism for moving at least one part of the assembly. A cam of the cam mechanism has a curvature course with points, in particular bends or jumps, which are not constantly differentiable within a movement region of the cam. The cam mechanism can include an actuator for the temporal displacement of jolts which are induced by the points that are not constantly differentiable to the at least one part of the assembly. An adaptation of the movement which is produced to the operating state of the printing press is possible, with the result that a considerable reduction can be achieved in vibrations for all printing speeds.
摘要:
An apparatus for the vertical adjustment of combined front/top lays in a sheet processing machine includes a front/top lay carrier shaft carrying the front/top lays jointly in such a way that it can be pivoted with respect to a front/top lay drive shaft, or thrust joints disposed in carriers or coupling links for the front/top lays in such a way that they effect a lengthening of the carriers or coupling links in order to adjust the front/top lays. A sheet-fed rotary printing press having the apparatus, is also provided.