Abstract: A measuring apparatus (10) for determining the volume flow of glue in a gluing device (100) for an apparatus, particularly a bottoming device or a tubing machine, for manufacturing bags or semifinished bag products. The measuring apparatus (10) comprises a pressure accumulator (20) having a gas volume (22) and a glue volume (24) that is separated from the gas volume (22) by a pressure equalization element (26), particularly a flexible membrane, wherein the glue volume (24) as a glue port (28) for connection to a glue line (110) of the gluing device (100), and the pressure accumulator (20) comprises a pressure sensor (30) for determining the internal pressure inside the pressure accumulator (20).

Abstract: An inking system of a printing press includes an impression cylinder for guiding a printing substrate, and at least one ink-transfer roller. The ink-transfer roller includes a cylinder mandrel, on which at least one cylinder sleeve is concentrically displaceable, and bearing blocks, in which ends of the ink-transfer roller are mounted and which are independently displaceable in the radial direction of the impression cylinder. The ink-transfer roller can be set against the impression cylinder or any other ink-transfer roller, with a bearing block being detachable from one end of the ink-transfer roller and displaceable relative to the ink-transfer roller so that the cylinder sleeve can be removed via this one end. A stop device, with which the cylinder sleeve can be brought into contact, has components that are movable in the axial direction of the print roller. The movable stop device components can be decelerated via a force-providing element.

Abstract: A device for gripping and transporting at least one ink-attracting cylinder of a printing machine includes support elements that can enter into contact with pins of the cylinder in order to be able to raise the cylinder, Each support element includes at least two tong-like gripper arms with which a pin of the cylinder can be at least partially gripped.

Abstract: A bag manufacturing system has at least one tube forming device which forms a tube and separates the tube into tube pieces, and at least one bottom forming device which provides the tube pieces with a bottom and thus forms the bags. The system has a storage device for storing the tube pieces on at least two levels. At least two charging and removing devices are provided with which the tube pieces can be supplied to and/or removed from at least two different points of the levels of the storage device.

Abstract: Winder for an endless lane of a plastic web (2), with a revolving unit (6, 6?, 55, 90), which is constructed so as to be rotatable about its axis (16) and has at least two winding shafts (10 to 12, 10? to 12?) running parallel to its axis, onto which winding cores (17) can be loaded, then wound with the web (2) to a roll (18), finally unloaded therefrom again as finished rolls (18), wherein on both sides of the revolving unit (6, 6?, 50, 90) support arrangements are arranged, in which the winding shafts (10 to 12, 10? to 12?) are supported at their corresponding ends therein, and wherein the support for one end of the winding shafts (10 to 12, 10? to 12?) is constructed so as to be detachable, such that the respective winding shaft (10 to 12, 10? to 12?), with released support, can be loaded and unloaded from this end, characterized in that the detachably constructed support arrangements each have a gripper arrangement (36 to 38) with a two-armed scissor unit (39 to 41), the scissor arms (42, 43) of which sur

Abstract: The invention relates to a receptacle (10), in particular a flexible bag (10) made of paper, with a front part (20), a back part (30) and a bottom (50), which is closed by a bottom unit, and with an opening (1) lying opposite the bottom (50), wherein the bottom unit has a bottom portion (120) of the front part (20) and a bottom portion (130) of the back part (30), the bottom portion (130) of the back part (30) is shorter than the bottom portion (120) of the front part (20), such that the bottom portion (120) of the front part (20) is secured directly on the back part (30) by turning the bottom unit (100) back along a fold line (101), and the opening (1) is formed by a peripheral edge (2) which extends at a height of the front part (20) and of the back part (30) and which is at least partially frayed, thereby reducing the danger of injury at the edge (2).

Abstract: The invention relates to a measuring apparatus (10) for determining the volume flow of glue in a gluing device (100) for an apparatus, particularly a bottoming device or a tubing machine, for manufacturing bags or semifinished bag products, comprising a pressure accumulator (20) having a gas volume (22) and a glue volume (24) that is separated from the gas volume (22) by a pressure equalization element (26), particularly a flexible membrane, wherein the glue volume (24) as a glue port (28) for connection to a glue line (110) of the gluing device (100), and the pressure accumulator (20) comprises a pressure sensor (30) for determining the internal pressure inside the pressure accumulator (20).

Abstract: A printing press includes a plurality of inking systems, which cooperate with at least one impression cylinder, each inking system including a print roller and at least one additional ink-transfer roller, each of which includes a roller body, at the front sides of which a first and a second end shaft journal is disposed. The printing press includes at least one roller-bearing device, in which the print rollers and the ink-transfer rollers can be mounted in roller-bearing positions, and a transfer element, via which at least the print rollers or the ink-transfer rollers can be transported between the roller-bearing positions and the inking systems. At least one roller-bearing position, in which one of the rollers can be set up for a subsequent print job, is provided in the roller-bearing device.

Abstract: An apparatus for applying glue to regions of paper or plastic webs or paper or plastic web-sections for the production of paper sacks includes a nozzle unit having a plurality of glue outlet openings and glue supply lines and a plurality of glue valves via which the glue supply lines can be provided selectively with glue. Each glue valve includes at least one tappet having a sealing head and at least one counter element, with which the sealing head can make sealing contact. The apparatus includes a glue chamber via which glue can be provided. The counter element is disposed in, or in close vicinity to, the glue chamber.

Abstract: The invention relates to a detection device (10) for the use in a hag filling plant (100) to detect an overlapping section (230) of a film web (200) between an end of a film web (212) of a film in use (210) and a start of a film web (222) of a subsequent film (220), comprising a first film roll (20) and a second film roll (30), which contact the film web (200) on side areas (202) aligned opposite each other, and form a conveyer gap (40) for the film web (200) with the first film roll (20) being supported mobile in reference to the second film roll (30), in order to alter the conveyer gap (40), and with a sensor device (50) being arranged for the detection of the motion of the first conveyer roll (20).

Abstract: The invention relates to an opening device (10) for opening a bag section (210) of a film web (200) in a bag filling plant (100) for filling in bulk goods, comprising a suction device (20) for suctioning the two sides (212, 214) of the bag section (200) with an articulately supported first suction cup (22) on the first side (212) of the bag section (210) and an articulately supported second suction cup (24) on the second side (214) of the bag section (200), with at least one of the suction cups (22, 24) being arranged acute-angled in reference to the respective side (212, 214) of the bag sections (200).

Abstract: A method and an apparatus for operating a printing press determine the vibration behavior of at least one impression cylinder of the printing press, with the avoidance or suppression of undesirable vibrations such as resonant vibrations by utilizing measures in the range of the critical frequencies which trigger the vibrations. During operation of a printing press of this type, undesirable vibrations occur which cause quality impairments in relation to the printed image. The invention reduces quality impairments of this type. The problem is solved by performing targeted loading of the drive of the impression cylinder of the printing press with an exciting signal of the power output to cause vibrations of the impression cylinder, and determining critical frequencies in the resonant frequency spectrum of the impression cylinder using the vibrations which are caused.

Abstract: A system for measuring the viscosity of printing ink during a printing and ink correction process includes a printing press having an ink supply system, and an optical measuring device for measuring actual optical values of light that has interacted with at least parts of the printing picture. The printing press has an ink mass determination device to determine the weight of at least parts of the ink located in the ink supply system, and a control and evaluation device to receive measured values from the optical measuring device and from the ink mass determination device. The control and evaluation device determines an optical deviation, and, based on the optical deviation and the values from the weighing devices, an amount of corrective ink that is to be fed to the printing press in order to approximate the actual optical values to optical reference values.

Abstract: A bag machine for production of bags made of paper material includes an unwinding device to unwind and feed paper material in a transport direction (x), a device to produce weakening lines partially offset in direction (x), so that a first wall of the bag continues in at least one tab that extends beyond a second wall, a tube-forming device, in which side areas are folded to form an overlapping area, a separation device to separate tube sections along the weakening lines, and a bottom formation device, in which areas of a leading end of the tube section are folded and fastened onto an outer wall thereof. The machine has a device for application of adhesive surfaces to the paper material, with which an adhesive surface is applied to an area of the paper material that represents the side of the tab facing the second wall in the finished bag.

Abstract: A method for adjusting the distances between cylinders of an inking unit limiting at least two cylinder gaps and in which the distances are adjusted based on measurements, which are gathered from the surface of at least one of the cylinders of the inking unit. It is considered novel and inventive that information is used, which was gathered during the adjustment of the distance between the two cylinders limiting a first cylinder gap for adjusting the distance between the two cylinders limiting a second cylinder gap. A printing machine is also described and claimed for executing the above-described method.

Abstract: A coupling device facilitates coupling of an ink transfer roller in an inking unit or printing unit of a printing machine. The ink transfer roller includes at least a roller body to which an end pin is connected, with each end pin of the roller being mounted to rotate in a bearing housing of the inking unit or printing unit via at least one bearing. The end pins of the roller include couplings with which the roller can be coupled and fastened in the inking unit or printing unit, with at least one end pin of the roller being splined to a shaft piece of a drive. The coupling device includes an actuator, with which at least one end pin of the ink transfer roller can be positioned against the shaft piece of the drive.

Abstract: A printing plate cylinder for a printing machine has a rotatable cylinder mandrel and a sleeve that is at least partially positionable over the cylinder mandrel. The angular positions of the mandrel and the sleeve are alignable to each other by a male register element which is fixed on one of the two elements to be aligned, and a female register element which is part of the corresponding other element to be aligned. Both the male and female register elements remain in working connection with each other if the elements to be aligned are in the set position relative to each other. At least one of the male and female register elements is controlled by movement of the other element to be aligned.

Abstract: The invention describes a machine for printing material webs (4), which comprised a station (1, 11, 41) for monitoring the printed material web (4), with the station (1, 11, 41) for monitoring the material web (4) comprising a sensor for monitoring the material web (4) and at least one counter support (2, 12) for guiding the web (4), with at least one counter support (2, 12) being located on the side of the web facing away from the sensor (3, 13), and with the surface of the counter support facing the material web at least partially being made from a porous or perforated material. It is characterized in a surface of the counter support facing the material web (4), showing a reflector (34) and/or a background illumination (39).

Abstract: A device for the production of tubes or sections of tubes having at least one paper layer, from which paper bags can be manufactured, includes an unwinder device for unrolling at least one material web from a material web roll, a device for the provision of at least one edge region of each material web with glue, and a tube forming device via which the edge region provided with glue can be inverted onto, and attached to, a second edge region. The tubes or sections of tube can be provided with air-permeable channels in the device. The device for providing at least one edge area of each material web with glue has glue application valves, with at least two glue application valves being functionally assigned to each material web, and with noncontinuous glue tracks being produced with the glue application valves such that interruptions therein form the air-permeable channels.

Abstract: A printing machine has at least one central impression cylinder, to which several inking units are allocated, in which a printing material sheet can be fed along a feed path to the impression cylinder in an area between a first inking unit and a last inking unit, and an unwinding station, from which the printing material sheet can be unwound, in which a passable area is provided between the impression cylinder and the unwinding station, at which the printing material sheet can be passed. Sound-absorbing elements are arranged above and/or beneath the feed path.