Abstract: A device for printing on hollow bodies comprises a mandrel wheel and a segment wheel. The mandrel wheel has its own motor separate from a motor of the segment wheel. In association with the segment wheel, along a circumferential line thereof, a plurality of plate cylinders are positioned or at least are positionable radially against this segment wheel. An inking unit is associated with each plate cylinder. Each plate cylinder, and a roller arranged in the associated inking unit, are each driven in rotation independently by a motor. The motor of the mandrel wheel and the motor of the segment wheel and the motor of the relevant plate cylinder and the motor of the roller arranged in the associated inking unit are connected to one another for data exchange by a common data bus. The relevant motors each have their own drive controller and their own power part connected to the data bus. Control data for the relevant motors, transported via the data bus, form a virtual guide axis.

Abstract: A method is provided for printing a surface of a non-absorbent substrate with an ink to be applied by an inkjet printing device. An ink that contains water as a solvent is used for printing the substrate. An ink having a water content of at least 70% is used. The substrate to be printed is supported by a workpiece support and is moved relative to the inkjet printing device. During this relative movement, ink is applied by the inkjet printing device to the surface of the substrate to be printed. The ink that is applied to the surface of the substrate is heated to a temperature that is above the temperature of the air surrounding the substrate and that is below the boiling point of the solvent contained in the ink. Above a liquid phase of the ink, a vapor layer, consisting of the solvent that is contained in the ink, is formed. The vapor layer that is formed above the liquid phase of the ink is transported away by an air flow emitted by at least one blower nozzle unit.

Abstract: A method is provided for printing a surface of a non-absorbent substrate with an ink to be applied by an inkjet printing device. An ink that contains water as a solvent is used for printing the substrate. An ink having a water content of at least 70% is used. The substrate to be printed is supported by a workpiece support and is moved relative to the inkjet printing device. During this relative movement, ink is applied by the inkjet printing device to the surface of the substrate to be printed. The ink that is applied to the surface of the substrate is heated to a temperature that is above the temperature of the air surrounding the substrate and that is below the boiling point of the solvent contained in the ink. Above a liquid phase of the ink, a vapor layer, consisting of the solvent that is contained in the ink, is formed. The vapor layer that is formed above the liquid phase of the ink is transported away by an air flow emitted by at least one blower nozzle unit.

Abstract: A device for printing on hollow bodies comprises a mandrel wheel and a segment wheel. The mandrel wheel has its own motor separate from a motor of the segment wheel. In association with the segment wheel, along a circumferential line thereof, a plurality of plate cylinders are positioned or at least are positionable radially against this segment wheel. An inking unit is associated with each plate cylinder. Each plate cylinder, and a roller arranged in the associated inking unit, are each driven in rotation independently by a motor. The motor of the mandrel wheel and the motor of the segment wheel and the motor of the relevant plate cylinder and the motor of the roller arranged in the associated inking unit are connected to one another for data exchange by a common data bus. The relevant motors each have their own drive controller and their own power part connected to the data bus. Control data for the relevant motors, transported via the data bus, form a virtual guide axis.

Abstract: In a method for printing non-absorbent substrates with a water-based ink, ink droplets are applied to the respective substrate. The ink is applied to the relevant substrate by the use of at least one inkjet print head. Substrates are used, which have a surface tension of less than 45 mN/m in air at a temperature of 20° C. Before the application of the ink droplets, the surface tension of the substrate to be printed is increased to a value of at least 45 mN/m. The ink droplets are only afterwards applied to the respective substrate which has the increased surface tension. The applied ink droplets are dried one of by an input of heat and heat exposure, with an exposure time of less than 0.2 seconds within only a single second after the printing of the relevant substrate. The method is carried out, in particular, in a digital printing press.

Abstract: The invention relates to a method and a device for feeding flat objects overlapping in slats, particularly metal sheets, at least to a front edge stopper of a processing machine, particularly a tin printing machine or a tin-plate varnishing machine, with a first conveyor on which the objects lie.

Abstract: The invention relates to a method and a device for feeding flat objects overlapping in slats, particularly metal sheets, at least to a front edge stopper of a processing machine, particularly a tin printing machine or a tin-plate varnishing machine, with a first conveyor on which the objects lie.

Abstract: A device in an axially extending tension channel on the circumferential surface of a cylinder for fastening a flexible plate on the cylinder periphery. The leading edge of the plate is held by a leading edge fastening device in the channel, and the trailing edge is held by a trailing edge fastening device in the channel. The leading edge fastening device is a start hook-in bar which the leading edge of the plate engages. The trailing edge fastening device is formed by an end hook-in bar which is engaged by the trailing edge of the plate. The end hook-in bar projects tangentially from a tensioning shaft which is rotatable to set the tension of the plate without means to apply a clamping load. Various devices for fastening and adjusting the leading and trailing edges of the plate are disclosed.

Abstract: The invention relates to a transfer device for goods delivered on a first conveyor device, particularly cans, which are transferred in groups, as a row in the direction of conveyance of said first conveyor device, from said first conveyor device to a second conveyor device, the depositing of the goods onto the second conveyor device taking place in the manner that said row extends transverse to its direction of conveyance, having a receiving device which holds the corresponding group of goods upon the transfer and is guided by at least one drive along a path of movement, the receiving device being a suction beam which is connected by a switch device to a source of vacuum, the switch member of which switch device is brought into a vacuum connect position or vacuum disconnect position as a function of the position of the suction beam.

Abstract: A method for the positionally accurate feeding of sheet-like objects to a treatment process, the objects being conveyed in succession in a lying position and being aligned during the conveyance. Rotational movement of the conveyed object is carried out to correct a skew position of the front edge of the object, a lateral movement of the object is carried out transversely, in particular at right angles, to the conveying direction for lateral alignment purposes, and an accelerated or decelerated longitudinal movement in the conveying direction is carried out for longitudinal alignment of the object, all the alignment movements being carried out on the surface of an object and without any mechanical alignment action on one or more peripheral edges of the object.

Abstract: A drying apparatus for surface treated cans or the like, with at least one chain conveyor which has holders for the cans. A hot air apparatus for the surface drying of the cans has an air conducting device, which directs at least one first stream of hot air at the base regions of the cans and guides at least one other second stream of air to the wall regions of the cans. The second stream of air is directed toward the can wall by at least one air conducting wall that runs obliquely in the direction toward the wall of the cans and the wall forms a wall jet of the second stream of in at least one area along the can wall.

Abstract: A device for linearly conveying sheet-like products, fed with a first speed, to a delivery conveyor or an apparatus having a second speed different from the first speed including a conveying surface provided with suction openings for applying vacuum to the conveying surface for retaining the sheet-like products thereon, and control unit for changing a displacement speed of the conveying surface from the first speed to the second speed and, thereafter, from the second speed to the first speed.

Abstract: An article treatment apparatus including at least one treatment zone, and a conveyor for conveying articles through the treatment zone, with the conveyor having an air-permeable conveyor belt displaceable along a support provided with a plurality of vacuum openings along a longitudinal extent of the support, and formed of at least two conveyor sections abutting each other, with an operational cross-section of vacuum openings beneath a support area for a conveyed article, which is located at least partially in a joint region, defined by the two sections, being larger than an operational cross-section of vacuum openings beneath a support area for the article, which is located in a region of the conveyor section other than the joint region.

Abstract: A transfer device for products, in particular aluminum cans, conveyed by a first transport system, which are transferred from the first transport system in groups in the form of a row aligned in the first transporting direction to a second transport system, wherein the placement of the products on the second transport system takes place in such a way that the row extends transversely in respect to its transporting direction. The transfer device includes a pickup mechanism holding the respective group of products during the transfer movement, the pickup mechanism being guided along a movement track by at least one drive linkage, wherein the drive linkage has a first arm which is pivotably connected at one end to a first shaft on the pickup mechanism and by its other end is pivotably connected to a second shaft on a rotating drive crank, and with a second arm, which is pivotably connected to a third shaft on the first arm and is pivotably connected to a fourth shaft, which is a fixed shaft.

Abstract: An apparatus for stacking sheet-like products delivered one after another in a spaced relationship to each other with a transporting device, including a conveyor arranged above a transporting plane of the transporting device for conveying the delivered sheet-like products to a stacking position, and a braking device located beneath the conveyor, with the conveyor having a conveying surface provided with suction openings or magnets for lifting the sheet-like products off the transporting device and for retaining the sheet-like products as they are conveyed to the stacking position.

Abstract: Sheets that arrive one after another in a horizontal travel direction at a relatively high input speed at an input station are stacked by first displacing the sheets transversely downward as they pass the input station, and then braking the downwardly displaced sheets so that they move in the direction at an output speed that is substantially lower than the input speed. The sheets are then stopped so that they settle downward on a stack in the bin. Since the sheets move downward somewhat before they are braked, the trailing edge of the braked sheet is below the leading edge of the following sheet. In other words a leading edge of a sheet passing through the input station extends in the direction downstream past a trailing edge of the sheet is braked. The sheets are braked by gripping their trailing edges and retarding their downstream movement. This gripping can be effected by suction or, in the case of ferromagnetic sheets, magnetically.