Abstract: A process and a device supply printing ink to and remove link from a doctor blade device of the inking system of a rotary printing press. The device has a doctor blade support provided with a linearly extending groove and with doctor blades that are contacted with an inking roller or screen roller, the blades forming together with the inking roller and the groove an inking chamber. The device has conduits and motor-driven pump devices that supply ink to and remove ink from the inking chamber. The motors are preadjusted in terms of their parameters and are not modifiable during operation. A portion of the ink from the flow of ink supplied to the doctor blade device can be diverted to an ink supply source, and/or a portion of the ink from the flow of ink removed from the doctor blade device can be returned to the ink supply conduit.

Abstract: A method for pre-registration in a printing machine with multiple printing units in which phases of the printing cylinders involved in the printing process are so mutually attuned that the deviations of the printing images of the different printing cylinders lie within mutual capture areas, includes using the deviations in the context of the registration of an ongoing printing operation, respectively, for the determination of the position of the printing images or parts thereof. The web to be printed, which is fed during the pre-registration to the printing machine, has at least one mark, which passes through different printing units during the pre-registration. The time points at which the mark passes the measuring points in the printing units are recorded, and these time points are set with reference to the angular position of the printing images of the respective printing units at those time points.

Abstract: The present invention relates to a device (1) for winding sheet-shaped material (4), that comprises longitudinally cutting devices (11, 12, 13, 14), that cuts the sheet-shaped material (4) into different strips and winds it up on each of the winding sleeves (7a, 7b) arranged on the strips and in which at least one winding sleeve support (20) is provided on which the winding sleeves (7a, 7b) can be arranged in such a manner that each strip is wound up on a winding sleeve (7a, 7b) intended for it and in which sources of light (16) are arranged in such a manner that they can be used to illuminate the cutting positions of the sheet-shaped material (4) and/or the longitudinally cutting devices (11, 12, 13, 14) and at least one winding sleeve support (20).

Abstract: The invention describes a sensor system (3) for measuring the thickness of flat material (2), which (1) [sic] is moved relative to the sensor system (3), said sensor system having a first sensor device (14) for measuring the thickness of the flat material (2) as well as means for generating an air cushion (23), which means are disposed in such a way that there results an air cushion (23) between that at least one side (16) [sic: (15)] of the sensor device (15) [sic: 14)] that faces the flat material (2) and the flat material (2) during operation. In the region of the air cushion (23), the first sensor device (14) comprises surface sections comprising porous material and/or material that is provided with micro-holes.

Abstract: The invention describes a sack (220) which (220) is formed by first transverse sealing seams (110, 150) from a foil tube (101), and which (101) is provided with at least a first vent channel (20), which runs largely parallel to the axis of the film tube (101), and whose inner (40) film layer has first vent openings for venting of the sack interior (210) into the first vent channel (20). It is characteristic that at least a second vent channel (140) is provided, which is connected to the first vent channel (140) by second vent openings (90, 100, 200), and which, in turn, has third vent openings (120), which vent the at least one second vent channel (140).

Abstract: A process for adjusting the print image of a rotating machine equipped with transfer rollers and actuators assigned to them includes changing the position of the rollers. During the printing operation, at least one camera records the intensity of light reflected from the printed material. The camera also feeds the recorded measured values to a control and regulation unit that compares the recorded measured values with set values, and generates corrective signals for the actuator of at least one part of the rollers involved in the printing process. Based on the corrective signals, the actuator of the relative position of the roller assigned to it is actuated until the measured values once again lie within a tolerance range.

Abstract: A process for replacing the printing sleeves of a printing machine includes mounting printing sleeves that are not required for the printing process in at least one storage device. The transportation of the printing sleeves necessary for replacement between the storage device and the printing machine is performed by a transportation device. The transportation device has printing sleeve retaining devices that bring the printing sleeves into a position that facilitates their replacement. The arrangement of the printing sleeves in the transportation device is determined by a processing and control unit to which set positions of the printing sleeves during the next printing job are known. The processing and control unit adjusts the arrangement of the printing sleeves such that at least one printing sleeve retaining device remains free in the transportation device.

Abstract: A changing station for sleeves of a printing machine has a conveyable magazine with at least one take-up device for the sleeves. The magazine is both vertically and horizontally conveyable alongside the printing machine. The horizontal movement can be provided by a rail, and the vertical movement can be provided by a crane or hoist.

Abstract: The invention describes a printing plate cylinder (1), which during the set up of the print machine is made up of at least the following elements (2,3): A cylinder core (3) which is placed in the print machine as rotary and a sleeve (2) which can be pulled over the cylinder core (3) at least partly. In this angular position both of these elements (2,3) are alignable to each other through the following means: A male register element (6,10,11) which is fixed on one of the two elements to be aligned, a female register element (7) which is part of the corresponding other element to be aligned, whereby both the register elements mentioned before stay in working connection with each other if the elements to be aligned (2, 3) are in the set position relative to each other. At least one of the two register elements (6, 10, 11) is controlled by the other element (2, 3) to be aligned through movement.

Abstract: A system for the production and subsequent palletizing of tube segments, bags, or sacks has at least one functional unit for production of tube segments, bags, or sacks, at least one device for depositing and stacking, which places and stacks the finished tube segments, bags, or sacks, and at least one storage element such as a palette, in which the stack can be deposited. The system has at least one alignment unit for the stack of the tube segments, bags, or sacks, which reduces the mutual deviations of the edges of the tube segments, bags, or sacks.

Abstract: A material cutting and feed roller has a peripheral roller surface that conveys the material to be cut, and a cutting device within the roller that cuts the material. The cutting device has a blade that, when cutting the material, passes through a closeable opening located inside the peripheral surface of the roller. The closeable opening through which the blade passes during the cutting process is closed when the cutting process is not occurring.

Abstract: Equipment that lays flat films or tubular films extruded by a blown film extrusion installation has at least one roller, which guides the walls of the film or the tubular film. The lay-flat equipment has at least one device that influences the rotational speed of the roller by providing a torque that can be transferred onto the roller by a transfer device. The transfer device provides for slippage between the roller and the device that provides the torque, thereby ensuring a smooth transfer of torque and preventing damage to the film.

Abstract: A color chamber doctor blade has two doctor blade knives oriented in a roof-like fashion against a roller, from which the two doctor blade knives can be fixed on a doctor blade chamber body by means of a clamping plate. The clamping plate is in active connection with long-stretch fasteners in the axial direction (z) of the roller. The long-stretch fasteners are arranged substantially parallel to the clamping plate, and apply the force required for fixing at least one doctor blade knife. The resultant of the force exercised by the fasteners points toward the doctor blade chamber body.

Abstract: A printing unit of a printing machine has at least one ink transfer roller, and at least one bearing block movable relative to the printing unit frame, in which, in the printing position, one end of the ink transfer roller can be supported, and which releases that end of the ink transfer roller in its released position. The unit has a blade chamber holder which carries at least one blade chamber that can be adjusted on the ink transfer roller and which is connected rotatably and displaceably with the bearing block in the printing position. The blade chamber holder is supported permanently on the bearing block by support elements on the bearing block.

Abstract: A withdrawal device for blow-molded film has an air turning bar with an air cushioned surface for transporting the film, and the bar surface includes at least in part a sintered material. The sintered material portion of the bar surface provides a region of increased friction for compressed air flow, thus more effectively guiding the withdrawn film in a flat and even form.

Abstract: An inking system of a flexographic printing press with an anilox roller and a printing plate roller involved in color transport is shown. The positions of these two rollers relative to each other and to the impression cylinder are set using positioning elements that include bearing blocks in which the axles of the two rollers are mounted and which are traversed by motors which turn respective spindles that engage through an inner thread mounted in or on the bearing blocks. The motors are mounted on the machine frame on sides of the two rollers turned toward or facing the impression cylinder.

Abstract: The bearings of a printing roller of a printing machine, preferably of a flexoprinting machine, with at least one counter-pressure cylinder and with at least one printing roller, which on one end is taper bore mounted in the frame, are conveyable in guideways relative to the counter-pressure cylinder. A bearing is provided for underpropping the shaft extension of the free end of the printing roller. In order to be able to slide the enveloping sleeve off and/or the adapter sleeve off of the printing roller in a simple manner, two shafts are mounted to be longitudinally displaceable and rotatable in the bearing block in which the printing roller is taper bore mounted, parallel to the center line of the printing roller, said shafts carrying on their inner ends, which are oriented toward the printing roller, radial arms with end face thrust pieces. The shafts are rotatably mounted on their outer ends in a carrier bracket and are provided with a rotary drive.

Abstract: Tubular film die head for extruding single-layer or multi-layer film which has at least the following features: a substantially annular die gap, fastening elements which fix at least two components with respect to one another which together border areas bearing plastic melt within the tubular film die head, coolant-carrying elements. At least one part of the fastening elements is structured as coolant-carrying elements.

Abstract: Device for continuous winding of webs onto winding shafts or winding cores to winding rollers, with a pressure roller supported in a frame that can be engaged on the winding shaft or winding core. This engagement is effected with limited friction and in a sensitive manner by means of a drive, with the pressure roller being supported on at least one steering rod that is pivot-connected to two guides, the other ends of which are pivot-supported in the frame.

Abstract: A method for connecting the ends of flat tubular film sheets made of thermoplastic plastic that are equipped with side creases with one another by means of a lateral welding seam in such a manner that the interior creases remain permeable from the exterior even in the connection area. The end of one sheet is equipped with cuts separating the interior edges of the side creases. The end of the other sheet is inserted or placed into the separated area in such a way that both walls of the cut sheet overlie the inserted end, with a layer of each side crease of the end area of the inserted tubular film between the walls. Separating layers are inserted or placed into the side creases of the inserted end area, and the ends of the two sheets are then connected with one another by means of a lateral welding seam.