EP2697069B1 - Printing press - Google Patents

Description

The invention relates to a printing machine according to the preamble of claim 1.

Various printing methods are known which can be used in printing presses. One such printing method is ink jet printing or ink jet printing. In this case, individual ink drops are ejected from nozzles of printheads and transferred to a substrate, that results in a print image on the substrate. By individual control of a plurality of nozzles so different print images can be created. There is no fixed printing form and thus it is possible to design each individual print product individually. As a result, personalized printed products can be produced and / or small runs of printed products can be produced at low cost due to the saving of the printing forme.

An exact match of a print image on the front and back of a printed substrate printed on both sides is called register (DIN 16500-2). Multi-color printing is called the Passer (DIN 16500-2), when individual print images of different colors are combined exactly to a picture. Also in the context of inkjet printing, appropriate measures must be taken to maintain register and / or register.

By the EP 2 202 081 A1 and the JP 2003-063707 A In each case, a printing press is known, wherein the printing press has a first printing unit and a dryer, wherein the first printing unit has a central cylinder with its own, the first central cylinder associated drive motor and at least one, aligned on a cylinder surface of the first central cylinder ink jet print head.

By the EP 1 155 987 B1 a Rollenabspulvorrichtung a web-fed rotary printing machine is known, wherein the Rollenabspulvorrichtung at least one roller holding device and at least one, connected to the at least one roller holding device via at least one torque transducer drive motor and wherein the Rollenabspulvorrichtung has at least one common carrier or support frame having two support arms and / or on which two support arms are arranged and which is arranged pivotable about a pivot axis relative to a stationary frame of the Rollenabspulvorrichtung

It is known to use the inkjet printing process for printing on textile substrates. Textile printing materials are to be understood in particular as those materials as compiled in DIN 60000 (January 1969). In contrast to substrates such as paper or metal, textile substrates are relatively unstable in their shape. For example, textile fabrics are often more or less extensible, with an expansion in one direction usually resulting in a compression in another, for example orthogonal, direction. For this reason, not only one position of the printing substrate must be correctly set for a register-appropriate printing on textile substrates, but also a stable form of the printing material must be provided at least during the printing process.

By the DE 603 09 650 T2 a rotary printing machine is known, wherein the rotary printing machine has at least a first printing unit having at least a first central cylinder and wherein textile substrate is glued to a substrate and guided with this over the central cylinder and printed by ink jet printing.

By the DE 199 21 271 A1 a rotary printing machine is known, wherein the Rotary printing machine has at least a first printing unit, are glued in the sheet by means of an adhesive on a transport cylinder and then printed by an offset printing process.

By the EP 1 440 351 B1 a rotary printing machine is known, wherein the rotary printing machine has at least a first printing unit having at least a first central cylinder, which is coated with a self-adhesive blanket.

By the JP 2282155 A a rotary printing press is known, which has a cylinder, wherein at least one driver is arranged in the radial direction over a cylinder jacket surface of the cylinder outstanding.

By the US Pat. No. 1,675,000 A a sheet-fed rotary printing machine is known, the transfer cylinder is provided on its cylinder surface with a series of spacers, which serve to prevent damage to printed images.

By the DE 195 15 393 A1 a sheet-fed rotary printing press is known, the impression cylinder is provided on its cylinder surface with a surface structure with a series of spacers, which serve to reduce damage of printed images and to increase a friction between the sheet and cylinder.

By the US 2007/0018386 A1 For example, there is known a rotary printing press having a thermal printing head. Transport cylinders have at least one driver, which is arranged outstanding in the radial direction over a cylindrical surface of the bale of the transport cylinder.

By the US 2 740 355 A For example, there is known an elevator for a transfer cylinder of a sheet-fed rotary printing press, the elevator being provided with a plurality of spacers for causing damage to printed images prevent.

By the JP 7096749 B4 a rotary printing machine is known, wherein the rotary printing machine has at least a first printing unit having at least a first printing unit at least a first central cylinder and wherein within the first printing unit at least a first printing unit is arranged, the at least one on a cylindrical surface of a bale of the at least one first central cylinder aligned printhead and wherein at least one driver in the radial direction over the cylinder surface of the bale of the at least one first central cylinder is outstanding.

By the US 2010/245464 A1 and the US 2010/079539 A1 In each case, a sheet-fed printing machine is known which has a printing unit, wherein the printing unit has at least a first central cylinder and wherein within the printing unit at least a first printing unit is arranged, which has at least one nozzle bar, the at least one on a cylinder jacket surface of a bale of at least one and wherein the at least one nozzle bar is movably disposed in an axial direction so far that no nozzle of the nozzle bar and / or no working area of a printhead of the nozzle bar has a same position with respect to the axial direction as any part of the body of the nozzle at least a first central cylinder.

By the US 2010/279081 A1 a roller printing machine is known, which has at least one printing unit within which at least a first printing unit is arranged, which has at least one nozzle bar, which has at least one aligned on a conveyor belt print head. At least one driver is arranged on the conveyor belt outstanding. The at least one nozzle bar is arranged to be movable so far in an axial direction, that no nozzle of the nozzle bar and / or no working area of a print head of the nozzle bar a same position with respect to the axial direction, as the substrate.

The invention has for its object to provide a printing press.

The object is achieved by the features of claim 1.

The achievable with the present invention consist in particular that, by at least one, in the radial direction over a cylinder surface of a bale at least a first central cylinder outstanding arranged driver, position and shape of a particular textile substrate can be optimized for a printing operation. This improves register retention and / or transport behavior and / or reduces slippage. In connection with at least one inkjet printhead, there is the particular advantage that the at least one driver can be arranged at any point of the cylinder jacket surface. The fact that no contact of the printing material with a forme cylinder or a transfer cylinder is necessary, there is no risk of a collision of a driver with such a forming or transfer cylinder. A preferably positive contact between driver and printing material improves a transport process and allows torque transmission. Preferably, the at least one driver is at least one relative to the bale of the at least one formed first central cylinder immovable driver. As a result, a constructive effort and a susceptibility to errors are kept low. Examples are needles and / or hooks. A possible larger number of carriers improves the setting and maintaining the position and shape of the substrate on.

Another advantage of a mobility of at least one nozzle beam in an axial direction relative to the central cylinder, wherein the at least one nozzle bar is arranged so far movable that no nozzle of the nozzle beam and / or no working range of a printhead of the nozzle beam a same position with respect to the axial direction such as any part of the bale of the at least one first central cylinder, is that this allows use of printheads in conjunction with a central cylinder with at least one driver without unnecessarily jeopardizing an operator by the at least one driver. Such a hazard would arise, for example, if this operator had to approach the cylinder surface to wait for the at least one print head. For example, drivers designed as needles could lead to injuries if they still had to face the print head with the print head parked only in the radial direction and the operator therefore had to grasp these driver needles designed as needles in a corresponding intermediate space around the at least one print head to reach.

Another advantage is that a compact design can be achieved by appropriate arrangement of the at least one central cylinder and the at least one driver and / or preferably at least one dryer and / or preferably a Rollenabspulvorrichtung. In particular, by a preferred arrangement of corresponding dryer and optionally cooling devices can be provided on short transport routes for drying a substrate and in particular a printing material. Short transport distances avoid difficulties with the register and / or the register and a lot of white waste kept low. By appropriate arrangements of printing units and dryers smearing already printed images can be avoided. By a preferred arrangement of a dryer unit with two dryers accessibility of printing units and dryers is improved and provided for an optimized transport of the substrate and in particular the substrate web. A preferred use of at least one radiation dryer improves energy efficiency, in particular in the case of an infrared radiation dryer. This is preferably reinforced by a combination of radiation dryer and flow dryer. For this purpose, at least one ventilation device is preferably arranged on the at least one dryer. A preferred symmetrical structure with respect to the central cylinder and the dryer allows a modular design, in which a simple reversal of the direction of the printing machine by means of fewer guide rollers is possible

Another advantage is that, if desired, a web tension of the printing material web can be regulated particularly well. This results, for example, from a preferred multiplicity of driven rotational bodies and / or corresponding impression rollers which are in contact therewith and / or preferably a series of measuring rollers. The so preferably regulated web tension ensures, in addition to avoiding web breaks and / or hangers for an improvement of register and / or register, since strains of the printing material directly depend on the forces acting on the printing substrate forces.

Embodiments of the invention are illustrated in the drawings and will be described in more detail below.

Fig. 1

eine schematische Darstellung einer Rollen-Druckmaschine;

Fig. 2

eine schematische Darstellung eines Teils einer Druckeinheit mit einer Doppelreihe von Druckköpfen;

Fig. 3

eine schematische Darstellung eines Teils eines Trockners;

Fig. 4

eine schematisch vergrößerte Darstellung eines Bereichs der Fig. 3;

Fig. 5

eine schematische Darstellung einer Bedruckstoffbahn und mehrerer Strahlungsquellen eines Trockners;

Fig. 6

eine schematische Darstellung eines Zentralzylinders mit Mitnehmern, einer Bedruckstoffbahn, einer Klebstoffauftragvorrichtung und mehrerer Druckköpfe;

Fig. 7

eine schematische Darstellung eines Zentralzylinders mit Mitnehmern und einer Klebstoffauftragvorrichtung;

Fig. 8

eine schematische Darstellung eines Zentralzylinders mit Kanal und teilweise abgenommenem Mitnehmerträger;

Fig. 9

eine schematische Darstellung einer Rollenabspulvorrichtung;

Fig. 10

eine schematische Darstellung eines Teils einer Rollenabspulvorrichtung;

Fig. 11

eine schematische Darstellung eines Tragrahmens einer Rollenabspulvorrichtung;

Fig. 12

eine schematische Darstellung einer Zuführeinrichtung einer Rollenabspulvorrichtung;

Fig. 13

eine schematische Darstellung eines Transportwegs einer Bedruckstoffbahn in einer Nachbearbeitungsvorrichtung.

Show it:

Fig. 1

a schematic representation of a roll printing machine;

Fig. 2

a schematic representation of a portion of a printing unit with a double row of printheads;

Fig. 3

a schematic representation of a portion of a dryer;

Fig. 4

a schematic enlarged view of a portion of the Fig. 3 ;

Fig. 5

a schematic representation of a printing substrate and multiple radiation sources of a dryer;

Fig. 6

a schematic representation of a central cylinder with drivers, a printing substrate, a glue applicator and multiple printheads;

Fig. 7

a schematic representation of a central cylinder with drivers and an adhesive applicator;

Fig. 8

a schematic representation of a central cylinder with a channel and partially removed Mitnehmerträger;

Fig. 9

a schematic representation of a Rollenabspulvorrichtung;

Fig. 10

a schematic representation of a part of a Rollenabspulvorrichtung;

Fig. 11

a schematic representation of a support frame of a Rollenabspulvorrichtung;

Fig. 12

a schematic representation of a feeder of a Rollenabspulvorrichtung;

Fig. 13

a schematic representation of a transport path of a printing substrate in a post-processing device.

A printing press 01 has at least one printing material source 100, at least one first printing unit 200, preferably at least one first dryer 301, preferably at least one second printing unit 400 and preferably at least one second dryer 331 and at least one post-processing device 500. The printing machine 01 is also preferably designed as an inkjet printing machine 01. The printing machine 01 is preferably in the form of a roller printing machine 01, more preferably as a roller inkjet printing machine 01. The printing machine 01 is designed, for example, as a rotary printing press 01, for example as a rotary rotary printing press 01, in particular a rotary rotary inkjet printing press 01. Printing machine 01, the printing material source 100 is formed as Rollenabspulvorrichtung 100. In the case of a sheet-fed press or sheet-fed rotary printing machine, the printing material source 100 is designed as a sheet feeder. In the printing material 100 substrate 02 is aligned, preferably with respect to at least one edge of the substrate 02. In the Rollenabspulvorrichtung 100 a roll printing machine 01 is a web-shaped substrate 02, so a printing substrate 02, for example, a paper web 02 or a textile web 02 or a film 02, for example, a plastic film 02 or a metal foil 02 unwound from a Bedruckstoffrolle 101 and preferably aligned with respect to their edges. Subsequently, the printing material 02 and in particular the printing substrate 02 is passed through the at least one first printing unit 200, where the printing substrate 02 and in particular the printing substrate 02 is provided by at least one ink at least one side and preferably two sides with a printed image.

After passing through the at least one first printing unit 200, the printing substrate 02 and in particular the printing material web 02 preferably passes through the at least one first dryer 301 in order to dry the applied printing ink. Under Printing ink should be understood in the foregoing and hereinafter generally a coating composition, in particular also a lacquer. Preferably, the at least one first dryer 301 is part of a dryer unit 300. After passing through the at least one first dryer 301 and preferably the at least one second printing unit 400 and / or the at least one second dryer 331, the printing substrate 02 and in particular the printing material web 02 is preferably the at least one post-processing device 500 is supplied and further processed there. The at least one post-processing device 500 is designed, for example, as at least one folding device 500 and / or as a winding device 500. In the at least one folding device 500, the printing material 02, which is preferably printed on two sides, is processed further to form individual printed products. In particular, this means that along a transport path of the printing substrate 02 and in particular of the printing substrate 02 through the printing press 01 after the at least one first printing unit 200 preferably at least the first dryer 301 and then preferably at least the second printing unit 400 and then preferably the at least one second dryer 331 is arranged. This ensures that a double-sided printing of the printing substrate 02 and in particular the printing material web 02 is made possible in high quality.

Hereinafter, a roll printing machine 01 will be described in more detail. Corresponding details can, however, also be transferred to other printing machines 01, for example sheet-fed printing machines, provided that they do not contradict this. Bedruckstoffrollen 101, which are preferably used in the Rollenabspulvorrichtung 100 used, preferably each have a sleeve on which the web-shaped substrate 02 for.a use in the roll printing machine 01 is wound. The printing material web 02 preferably has a width of 700 mm to 900 mm, but may also have an arbitrarily smaller or preferably larger width. In the Rollenabspulvorrichtung 100 at least one Bedruckstoffrolle 101 is rotatably arranged. In a preferred embodiment, the Rollenabspulvorrichtung 100 for The recording of a Bedruckstoffrolle 101 suitably formed, thus has only one storage position for a Bedruckstoffrolle 101. In another embodiment, the Rollenabspulvorrichtung 100 is formed as a reel changer 100 and has storage positions for at least two Bedruckstoffrollen 101 and preferably allows a flying reel change, ie connecting a first substrate web 02 a currently processed Bedruckstoffrolle 101 with a second substrate web 02 a subsequently processed Bedruckstoffrolle 101, while both the currently processed Bedruckstoffrolle 101, as well as the subsequently to be processed Bedruckstofreolle 101 rotate.

The roll-off device 100 preferably has at least one roll holding device 103 per storage position, which is designed, for example, as a clamping device 103 and / or as a clamping device 103. The at least one roll holding device 103 preferably serves to rotatably fasten at least one printing material roll 101. The at least one roll holding device 103 is preferably in contact with the sleeve of the printing material roll 101. A clamping device 103 is a roller holding device 103 in which a torque-transmitting and / or transferable contact between the clamping device 103 and the Bedruckstoffrolle 101 comes about that by relative movement of the clamping device 103 and the Bedruckstoffrolle 101 to each other in a, based on the Bedruckstoffrolle 101, axial direction A, a contact between the Bedruckstoffrolle 101 and the clamping device 103 is made, which is sufficient for a torque transmission. Such a contact is for example given by the clamping device 103 is pressed sufficiently strong in the axial direction A against the Bedruckstoffrolle 101 and in particular the sleeve and / or by the clamping device 103 at least partially in the relative movement in the axial direction A in the sleeve of Bedruckstoffrolle 101 cuts and / or by the clamping device 103 alone by the movement in the axial direction A relative to the Bedruckstoffrolle 101 with the Bedruckstoffrolle 101 is positively connected with respect to movements in the circumferential direction. Such a clamping device 103 may, for example, be in the form of two clamping mandrels 103 or clamping cones 103, of which at least one is displaceable in the axial direction A.

A tensioning device 103 is a roller holding device 103, in which a torque-transmitting and / or transferable contact between the tensioning device 103 and the printing substrate 101 is achieved by at least partially inserting the tensioning device 103 into an opening of the printing material roller 101 after an at least partial insertion of the tensioning device 103 Clamping device 103, for example, at least one designed as a clamping jaw driver element is moved relative to the rest of the tensioning device 103 and relative to the Bedruckstoffrolle 101 in one direction in a radial direction relative to the Bedruckstoffrolle 101 direction relative to the Bedruckstoffrolle 101 until a frictional and / or positive connection between the tensioning device 103 and the printing material roll 101 is produced. The at least one tensioning device 103 is preferably designed as two tensioning mandrels 103 or tensioning cones 103 or more preferably as a tensioning shaft 103.

The at least one roller holding device 103 preferably has at least one drive motor 104 and is preferably drivable and / or driven by the latter at least one or in each case one drive motor 104 to rotate. In particular, therefore, the Rollenabspulvorrichtung 100 at least one drive motor 104. The at least one drive motor 104 is preferably designed as at least one electric motor 104 and more preferably as at least one position-controlled electric motor 104. Preferably, the at least one drive motor 104 is the only controllable component of the Rollenabspulvorrichtung 100, by means of which a targeted acceleration or deceleration of a rotation of the clamping shaft 103 is executable about the rotation axis 111. Preferably, a drive control of the at least one drive motor 104 is provided. This drive control is preferred for different modes of operation educated.

A first mode of operation is to accelerate the printing material roll 101 and to maintain it at a substantially constant rotational speed. This is the case, for example, in a printing operation of the printing press 01. A second mode of operation is to operate the drive motor 104 in a generator mode. In this case, the drive motor 104 is controlled by the drive control so that a recovery of the printing material roll 101 is braked while obtaining electrical energy. Rotation energy is thus converted into electrical energy and fed, for example, into a power grid and / or a storage for electrical energy. A third mode of operation is that a phase position of the drive of the drive motor 104 is changed and thereby in a more or less out of phase driving of the at least one drive motor 104. As a result, electrical energy is spent to actively brake a rotation of the Bedruckstoffrolle 101. This is the case, for example, when in an emergency the fastest possible stopping of the printing press 01 is required. Such operation is also known as countercurrent braking. It is also conceivable to arrange a plurality of drive motors 104 and to operate a part of the drive motors 104 in the generator mode and to use the electrical energy thus obtained to drive another part of the drive motors 104 in antiphase. In this way, depending on the requirement, more emphasis can be placed on fast or energy-efficient braking and / or stopping of the printing material roll 101.

In the case of clamping mandrels 103 or clamping mandrels 103, this is preferably at least one drive motor 104 of the at least one roller holding device 103 via at least one torque transmitter 106, preferably a traction means 106, for example a belt 106 and preferably a toothed belt 106 with the respective clamping mandrel 103 or clamping mandrel 103 connected. The torque transmitter 106 may, for example also be designed as at least one gear 106. However, a belt 106 or a chain 106 offers weight advantages and usually has a smaller mass and thereby helps to save energy during accelerations. In the case of a tensioning shaft 103, this is preferably at least one drive motor 104 of the tensioning shaft 103 via the at least one torque transmission 106, for example as at least one gear 106 and preferably as at least one traction means 106, for example a chain 106 or a belt 106 and more preferably as at least a toothed belt 106 is formed, torque transmitting and / or transferable connected to at least one Spannwellenlager 122.

The at least one roller holding device 103 and / or its drive motor 104 or drive motors 104 are preferably connected via at least one support arm 107 to a preferably common axle 108 or at least one common carrier 108 or support frame 108, around the one or more or all of them Memory positions are arranged rotatably and / or pivotally. As a result, the at least one printing material roll 101 is at a fixing of the at least one Bedruckstoffrolle 101 in the Rollenabspulvorrichtung 100 and / or removing a residual or residual role of Bedruckstoffrolle 101 from the Rollenabspulvorrichtung 100 and / or in a flying role change and / or in a current printing operation adaptable with decreasing roll diameter with respect to a position of its axis of rotation 111 and its lateral surface. The drive motor 104 is preferably connected to the printing material roll 101 only via the corresponding roll holding device 103 and in particular is not connected to a cylinder jacket surface of the printing material roll 101 via a belt.

First, a first, preferred embodiment of the Rollenabspulvorrichtung 100 will be described in which two storage shaft bearing 122 and a clamping shaft 103 are arranged per storage position. All statements, however, as far as no contradictions arise, corresponding to an embodiment of the roll holding device 103 as a clamping device 103 in general or as a clamping device 103 transferable. The at least one and preferably exactly one storage position preferably has two support arms 107, each of which has a respective prestressing shaft bearing 122 which is preferably designed as a hinged bearing 122. The Rollenabspulvorrichtung 100 thus preferably has exactly two support arms 107. At least one tensioning shaft bearing 122 is connected to the tensioning shaft 103 in a torque-transmitting and / or transferable manner and / or connectable. At least one tensioning shaft bearing 122 has a closure element, which in the case of a folding bearing 122 is preferably pivotable about a closure axis. The closure axis preferably has at least one component that is oriented orthogonally to the rotation axis 111 of the tensioning shaft 103. This contributes to the fact that upon rotation of the clamping shaft 103 arranged in the folding bearings 122, there is no danger that the folding bearing 122 could open due to this rotation. By pivoting the closure element, the respective tension shaft bearing 122 is opened and / or closed. For Aufachsen a Bedruckstoffrolle 101, the Spannwellenlager 122 of the two support arms 107 are opened. A tensioning shaft 103 is guided through an opening in the sleeve of the printing material roll 101, so that in each case one axial end of the tensioning shaft 103 protrudes from the sleeve of the printing material roll 101 at each axial end of the sleeve of the printing material roll 101. The tensioning shaft 103 preferably has at least one driving element 123, preferably designed as a clamping jaw 123, and more preferably at least two driving elements 123, preferably designed as clamping jaws 123. The tensioning shaft 103 further forms a continuous support pin with which the preferably designed as clamping jaws 123 driver elements 123 are preferably movably connected.

The preferred trained as clamping jaws 123 driver elements 123 are independent of their number preferably at least in the radial direction with respect to a rotation axis 111 of the clamping shaft 103, which coincides with the axis of rotation 111 of the Bedruckstoffrolle 101, changeably connected in position with the clamping shaft 103. In a free operating state of the preferred as clamping jaws 123 formed driver elements 123 are all components of the preferably designed as clamping jaws 123 driver elements 123 within a radius determined by a maximum radial dimension of the trunnion. In a tensioned operating state of the driver elements 123, which are preferably designed as clamping jaws 123, parts of the driver elements 123, which are preferably designed as clamping jaws 123, lie outside this radius. The preferably designed as clamping jaws 123 driver elements 123 are preferably movable by means of a pneumatic system. Preferably, the pneumatic system operates against a spring force of at least one arranged spring, wherein the spring force is preferably designed as clamping jaws 123 driver elements 123 is preferably formed in the free operating state urging. By means of at least one pneumatic device connected to a pneumatic connection, the driver elements 123, which are preferably designed as clamping jaws 123, are then transferred into the tensioned operating state. About at least one valve, which is part of the pneumatic system, the tensioned operating state is permanently secured or transferred by opening the valve in the free operating state. In the tensioned operating state, the tensioning shaft 103 is non-rotatable and torque transmitting and / or transferable connected to the sleeve of Bedruckstoffrolle 101.

The clamping shaft 103 is used together with the Bedruckstoffrolle 101 with its two ends in the two Spannwellenlager 122. Subsequently, the two tensioning shaft bearings 122 are each closed, preferably by the closure elements are pivoted to a closed position. Preferably, in each case a backup of the tension shaft bearing 122 is closed, for example by a spring-mounted retaining pin engages in a corresponding recess or by a handwheel is rotated to a corresponding position. After closing the tensioning shaft bearings 122, the tensioning shaft bearings 122 are torque-transmitting and / or transferable connected to the tensioning shaft 103. The insertion of the tensioning shaft 103 into the tensioning shaft bearings 122 is preferably carried out in that the tensioning shaft 103 in one direction with a vertically downward component in the tension shaft bearing 122, for example by means of a crane or a lift truck is lowered and / or in that the tension shaft bearings 122 are preferably moved together with respective support arms 107 in one direction with a vertically upward component and thereby absorb the tension shaft 103 and more preferably the tension shaft 103 lift together with the bedroll 101. For this purpose, the printing material roll 101 is first moved together with the tensioning shaft 103 into a corresponding receiving position. This is done for example by rolling the Bedruckstoffrolle 101 or by means of a means of transport, such as a lift truck or a trolley of a fixed, for example, partially embedded in the ground transport system. By suitable, insbesondre central arrangement of Bedruckstoffrolle 101 relative to the tensioning shaft 103 is provided for all web widths up to a maximum web width Rollenabspulvorrichtung 100. In particular, different web widths can thus be processed without adaptation of the roll-off device 100. The tension shaft bearings 122 each have an opening angle in an open state, which is preferably between 40 ° and 80 °. This opening angle is an angle which lies in a plane to which the rotation axis 111 of the tensioning shaft 103 is oriented orthogonally. The tensioning shaft bearings 122 furthermore preferably have a permissible angular position range for opening the tensioning shaft bearings 122, which is preferably between 5 ° and 90 ° and which is more preferably between 40 ° and 80 °. This angular position range is an angle which lies in a plane to which the rotation axis 111 of the tensioning shaft 103 is oriented orthogonally. Only when the respective tension shaft bearing 122 is in a rotational angle position which is within this allowable angular position range, the respective tension shaft bearing 122 can be opened. If the respective tensioning shaft bearing 122 is in a rotational angle position which lies outside this permissible angular position range, then it automatically closes and / or can not be opened.

The two tensioning shaft bearings 122 are preferably connected to the at least one common carrier 108 or supporting frame 108 via a respective support arm 107. The two Support arms 107 and the at least one common carrier 108 or support frame 108 are preferably formed as a single component. The two support arms 107 and the at least one common carrier 108 or support frame 108 and thus preferably also the at least two tension shaft bearings 122 are pivotally mounted about a pivot axis 109, in particular relative to a, preferably stationary frame 112 of Rollenabspulvorrichtung 100. The pivot axis 109 differs from the axis of rotation 111 of the clamping shaft 103, but is preferably arranged parallel to this. For this purpose, the at least one common carrier 108 or supporting frame 108 is mounted on at least two bearings, with respect to the axial direction A, in at least one bearing 129. The at least one bearing 129 is preferably designed as a roller bearing 129 and / or sliding bearing 129. By pivoting movements of the support arms 107 and the at least one common support 108 or support frame 108 a Bedruckstoffrolle 101 aufgeachst and / or changed in position and / or released or the support arms 107 and the at least one common carrier 108 or support frame 108 are aligned in its position , For example, to prepare a Aufachsen a Bedruckstoffrolle 101. In particular, the at least one common carrier or supporting frame 108 and the tensioning shaft bearings 122 and the roller holding device 103 are preferably pivotable about the same pivot axis 109.

Preferably, at least one pivot drive 124 is arranged to effect pivoting movement of the at least one common support 108 or support frame 108 relative to the frame 112 of the roll-off device 100 and / or arranged to be effective. For receiving and / or delivering a printing material roll 101 by means of the Rollenabspulvorrichtung 100, the two support arms 107 and the at least one common carrier 108 or support frame 108 preferably placed depending on a diameter of Bedruckstoffrolle 101 manually or automatically in at least one matching pivot position. In manual mode, this is preferably done stepwise and under visual control by an operator. In automated operation, at least one sensor is preferred, for example an optical and / or acoustic and / or inductive sensor, For example, a laser sensor and / or an ultrasonic sensor arranged, which determines a diameter of Bedruckstoffrolle 101 and passes it on to a machine control, which then brings the two support arms 107 and the at least one common carrier 108 or support frame 108 in a suitable pivot position. In a printing operation, the diameter of the printing material roll 101 is determined at least as required from an angular velocity of the printing material roll 101 and a transport speed of the printing material web 02.

The Rollenabspulvorrichtung 100 preferably has exactly one storage position for exactly one Bedruckstoffrolle 101. Therefore, it is not necessary that the at least one common carrier 108 or support frame 108 can perform several turns, as would be necessary, for example, in several successive flying role changes. The at least one common carrier 108 or support frame 108 is pivotable about the pivot axis 109 through an angle which is preferably less than 360 ° and which is more preferably less than 180 ° and which is still more preferably less than 80 °. The angle is preferably at least 20 ° and more preferably at least 45 °. As a result, processing of printing material rolls 101 of different diameters is possible. This angle is determined by the ends of a pivoting range, which is preferably designed so that the at least one common carrier 108 or support frame 108 can receive or deposit an empty sleeve on the ground and that a Bedruckstoffrolle 101 up to a maximum diameter always in one, a current diameter corresponding rolling position is durable. To limit the pivoting range, a swivel range limit 132 is preferably arranged. In a preferred embodiment of the swivel range limit 132, the swivel range limit 132 has at least one position sensor 133, for example at least one optical and / or acoustic and / or inductive position sensor 133. Preferably, the swivel range limit 132 has at least one reference component 134, which is more preferably of the at least one Position sensor 133 is detected and / or detectable.

In a preferred embodiment, the swivel range limit 132 has two position sensors 133, which are preferably designed as inductive position sensors 133, and has the swivel range limit 132, preferably a segment-shaped, reference component 134. The reference component 134 is preferably arranged rigidly relative to the at least one common support 108 or support frame 108, while the at least one position sensor 133 is preferably arranged rigidly relative to the frame 112 of the reel unwinding device 100. This simplifies a supply of the at least one position sensor 133, for example, with electrical energy. By corresponding dimensioning of the reference component 134 and relative arrangement of the reference component 134 and the position sensors 133 relative to one another, it is ensured that both end positions of the pivoting range can be detected. In another embodiment, a rotation angle sensor is arranged, whose signals are sent to a machine control. The machine control then decides on the basis of stored data whether an end of a permissible swivel range has been reached.

In a first, preferred embodiment of the pivot drive 124, the pivot drive 124 is designed as at least one electric motor 124 whose rotor is connected to the at least one common carrier 108 or support frame 108, either directly or with the interposition of torque transmitters. Preferably, the rotor of the at least one electric motor 124 is at least one bevel gear 126 torque transmitting and / or transferable connected to the at least one common carrier 108 or support frame 108. In this way, a space-saving arrangement can be realized. Preferably, a corresponding transmission gear is provided to bring the requirements of the electric motor 124 and the at least one common carrier 108 or support frame 108 with each other in line. Preferably, a stator and / or a housing of the pivot drive 124 is rotatably or more preferably via a torque arm 136 supported on the frame 112 of the Rollenabspulvorrichtung 100th arranged. The torque arm 136 is directly or preferably via at least one torque limiter 137 at least one contact point with the frame 112 of the Rollenabspulvorrichtung 100 in contact. By arranging the torque arm 136 and dispensing with a rigid arrangement of the stator of the electric motor 124 on the frame 112 of the Rollenabspulvorrichtung 100 tension within the bevel gear 126 and / or the electric motor 124 are avoided, otherwise otherwise, for example, by deflection of the at least one common carrier 108 or Support frame 108 could be caused.

The torque limiter 137 preferably has at least one torque sensor, which consists for example of a spring assembly and an initiator. Exceeding a maximum permissible torque causes via a corresponding deflection of the torque arm 136, a compression of the spring assembly until the initiator registers a reaching a maximum allowable deflection of the torque arm 136. In response to a corresponding signal of this torque sensor, the pivot drive 124 is then turned off. In this way it is ensured that the preferably manually operated rotary actuator 124 is not damaged by improper operation and / or causes damage. By appropriate design of a torque limiter 137 or arrangement of two torque limiting 137 both possible pivoting directions are hedged. For emergencies, the electric motor 124 preferably has a connection for a hand crank, which is covered with a sensor-monitored cover. When the sensor-monitored cover is open, the electric motor 124 can only be operated manually.

Preferably, at least one position limitation 142 is arranged, which keeps an axial movement of the at least one common carrier 108 or support frame 108 within limits or preferably substantially and more preferably completely prevented. The position limitation 142 preferably has at least one annular groove 143 and at least one stop 144 arranged at least partially in the annular groove 143. Preferably, the at least one annular groove 143 is arranged rigidly relative to the at least one common carrier 108 or support frame 108, and the at least one stop 144 is arranged rigidly relative to the frame 112 of the reel unwinding device 100. Preferably, the at least one reference component 134 of the swivel range limitation 132 is rigidly connected to a component of the position limitation 142 or part of the position limitation 142. In this way, a plurality of components are simultaneously accessible in a simple manner, all of which align the at least one common carrier 108 or support frame 108 and or a setting of an allowable range of motion of the at least one common carrier 108 or support frame 108 serve.

In a second embodiment of the pivot drive 124, the pivot drive 124 is designed as at least one hydraulic cylinder 124, which is supported on the frame 112 of the Rollenabspulvorrichtung 100 on the one hand and on the other at least one common carrier 108 or support frame 108 on the other. In a third embodiment of the pivot drive 124, the pivot drive 124 is formed as at least one Elektrohubzylinderantrieb 124, which is supported on the frame 112 of the Rollenabspulvorrichtung 100 on the one hand and on the other at least one common carrier 108 or support frame 108. Such Elektrohubzylinderantrieb 124 has at least one electric motor and at least one, with the electric motor torque transmitting and / or transferable connected, preferably designed as a trapezoidal threaded spindle threaded spindle. Furthermore, the threaded spindle is in engagement with a threaded nut, which is connected via a corresponding bearing with the at least one common carrier 108 or support frame 108. The connection of threaded spindle and threaded nut is preferably self-locking and therefore particularly suitable for this application. Also, the second and third embodiment of the pivot drive 124 preferably has at least one torque limiter 137, which may be formed, for example in the case of Elektrohubzylinderantriebs 124 as a slip clutch and / or at least one end position sensor.

Regardless of the embodiment of the pivot drive 124, the drive motor 104 of the at least one roller holding device 103 is preferred, which preferably causes and / or accelerates and / or decelerates and / or maintains rotation of the printing material roller 101 about its axis of rotation 111 via the at least one torque transmitter 106. on the at least one common carrier 108 or support frame 108 rigidly arranged. Preferably, at least one stator of this drive motor 104 is rigidly arranged on the at least one common carrier 108 or carrier frame 108. As a result, the drive motor 104 is arranged pivotably together with the at least one common carrier 108 or carrier frame 108 about the pivot axis 109. This means that in one, caused for example by the pivot drive 124, pivotal movement of the at least one common carrier 108 or support frame 108 of the drive motor 104 is pivoted with. In this way, a constant relative position of the drive motor 104 is ensured to the Bedruckstoffrolle 101 and to its storage position. This leads to constant operating conditions for the drive motor 104 and thus preferably connected torque transmitter 106, in particular belt 106. Preferably, one, the pivot axis 109 completely containing, extending in the vertical direction plane the Rötationsachse 111 of the tensioning shaft 103 and a rotational axis of the drive motor 104 to any time and in any operationally permissible angular position of the at least one common carrier 108 or support frame 108, ie in particular independent of the angular position of the at least one common carrier 108 or support frame 108. This results in an advantageous weight distribution, because respective weights of drive motor 104 and Bedruckstoffrolle 101st opposing torques are aligned.

Preferably, based on the axial direction A, arranged on at least one side of the frame 112 of the Rollenabspulvorrichtung 100 at least one feed 127. This at least one feed device 127 serves to drive the motor 104 and / or others, rigidly to the at least one common carrier 108 or support frame 108th to supply arranged components with energy and / or with cooling liquid and / or with compressed air and / or hydraulic fluid. This feed device 127 is preferably associated with a bearing 129 of the at least one common support 108 or support arm 108. The feed device 127 preferably has at least one passage 128, which is further preferably designed as an opening 128. The pivot axis 109 of the at least one common carrier 108 or common carrier frame 108 of the roll-off device 100 extends through this opening 128. This means in particular that a straight line extending along the pivot axis 109 of the at least one common carrier 108 or common carrier frame 108 through the bearing 129, to which the feed device 127 is assigned, is free of components of this bearing 129 to which the feed device 127 is assigned. The opening 128 preferably has a circular cross-section and / or extends at least in sections coaxially with the pivot axis 109 of the at least one common support 108 or support frame 108. The bearing 129, to which the supply device 127 is assigned, preferably has an outer ring, which is provided with the frame 112 of the Rollenabspulvorrichtung 100 is rotatably connected and preferably has an inner ring which is rotatably connected to the at least one common carrier 108 or support frame 108. The outer ring preferably has an inner diameter which is at least as large as and preferably larger than an outer diameter of the inner ring. The opening 128 preferably extends through the inner ring and through the outer ring. The feeder 127 preferably has a tubular member 131 which lines the aperture 128. This tubular member 131 is preferably formed of a plastic material. The tubular member 131 is formed either as a single component or as a group of components.

At least one line is arranged penetrating the opening 128, for example at least one power line and / or at least one fluid line. A first end of the at least one line is rigidly connected to a component which is stationarily arranged relative to the frame 112 of the Rollenabspulvorrichtung 100 and a second end of the at least one line is rigidly connected to a component which is stationary relative to the at least one common carrier 108 or support frame 108 is arranged. The at least one line has at least one non-reversibly divisible component which extends from the first end of the at least one line to the second end of the at least one line and / or has a plurality of non-reversibly divisible components, taken together from the first end of at least one line extend to the second end of the at least one line and are positively connected to each other and / or positively. This means that the at least one line between its first end and its second end is only severable, by separating at least one positive and / or non-positive connection and / or irreversible destruction of components of the at least one line. A positive and / or non-positive connection is given for example by a combination of plugs and / or by a screw connection.

By limiting the pivoting range of the at least one common carrier 108 or support frame 108 to an angle of preferably less than 360 °, more preferably less than 180 ° and even more preferably less than 80 °, no rotary feedthrough is necessary, in particular no such, the whole revolutions or more. This reduces design complexity and is associated with both a purchase as well as in a business at a reduced cost compared to a rotary joint. In particular, eliminates the difficulties that arise in a power line in connection with wear on sliding contacts or losses of inductive transmissions or arise in connection with leaks and / or wear on rotary joints of fluid lines. In the simplest case, the at least one line is at least one cable and / or at least one tube which is rigidly connected at its first end to a component which is stationarily arranged relative to the frame 112 of the roll-off device 100 and / or or rigidly connected at its second end to a component, the stationary relative to the at least one common carrier 108 or support frame 108 is arranged. A cable may have, for example, a plurality of cable sections connected via plug connections and / or screw connections. A hose may, for example, have a plurality of hose sections connected via screw connections and / or plug connections.

The tubular member 131 preferably has a plurality of sections. A preferred first portion has a bend at an angle of at least 30 ° and at most 150 °, more preferably at least 70 ° and at most 110 °. The first section defines the at least one line around a bend before passing the bearing 129. As a result, mechanical wear of the at least one line is reduced. The first section preferably has an inlet opening, through which the at least one line is fed to the tubular component 131. The first section is arranged on a side facing away from the common carrier 108 or support frame 108 side of the frame 112. A second section further preferably follows the first section. The second section preferably extends parallel and preferably extends coaxially to the pivot axis 109 of the at least one common carrier or support frame 108. The second section preferably extends through the bearing 129. The second section preferably extends from one, the common carrier 108 or Carrying frame 108 abgewanden side of the frame 112 into a disposed within the frame 112 of the Rollenabspulvorrichtung 100 area. A third section preferably follows the second section. The third section has at least one bend and preferably two bends at an angle of preferably at least 10 ° and at most 100 ° and more preferably at least 20 ° and at most 60 °. Through the third section, the at least one line is guided away from the pivot axis 109 and to the drive motor 104 of the at least one roller holding device 103 or another component arranged rigidly relative to the at least one common carrier 108 and / or support frame 108. In this way is permanent and independent of the pivotal position of the at least one common carrier 108 or support frame 108 defines a defined position of the at least one line relative to the drive motor 104 and / or the other, rigidly arranged relative to the at least one common carrier 108 or support frame 108 component. Preferably, the first portion and / or the third portion comprises a holder 138, which may be formed, for example, as a support 138 and a rigid layer of the first and / or third portion of the tubular member 131 relative to the at least one common carrier 108 or support frame 108 forms. The third section and thus the entire tubular member 131 preferably terminates at a distance of at most 50 cm from the drive motor 104.

A second embodiment of the roll-off device 100, in which two mandrels 103 or clamping mandrels 103 are arranged per storage position, will be described below. Nevertheless, as long as no contradictions arise, all descriptions are also generally applicable to the at least one roll holding device 103. In order to be able to clamp a printing material roll 101 onto the at least one roll holding device 103, in the case of clamping mandrels 103 or clamping mandrels 103, at least one of the clamping mandrels 103 or clamping mandrels 103 is preferably each two clamping mandrels 103 or clamping mandrels 103 in and / or opposite to the axial direction A movable. This axial direction A is arranged parallel to the axis of rotation 111 of the printing material roll 101 and, if appropriate, to the pivot axis 109 of the at least one common carrier 108 or carrier frame 108 of the roll-off device 100. This means that the axial direction A is at the same time a direction A of the width of the printing material web 02. The rotation axis 111 of the printing material roll 101 is at the same time the axis of rotation 111 of the clamping rollers 103 or clamping mandrels 103 in contact with the respective printing material roller 101. In the case of clamping mandrels 103, the clamping mandrels 103 preferably each have at least two preferably designed as clamping jaws Driver elements on. The mandrels 103 further each have a support pin, with which preferably designed as clamping jaws driver elements preferably movable are connected. The preferred trained as clamping jaws entrainment elements are at least in the radial direction with respect to a rotation axis 111 of the mandrels 103, which coincides with the axis of rotation 111 of the Bedruckstoffrolle 101, changeable in their position. In a free operating state of the driver elements, which are preferably designed as clamping jaws, all components of the driver elements, which are preferably designed as clamping jaws, lie within a radius defined by a maximum radial dimension of the trunnion. In a tensioned operating state of the driver elements, which are preferably designed as clamping jaws, parts of the driver elements, which are preferably in the form of clamping jaws, are located outside this radius determined by the maximum radial dimension of the trunnion.

Regardless of whether the Rollenabspulvorrichtung 100 is formed in the first or second embodiment, the Rollenabspulvorrichtung 100 preferably further on the bearing 129 via the at least one common carrier 108 or support frame 108 supporting frame 112 on. Preferably, the Rollenabspulvorrichtung 100 along a transport path of a printing substrate 02 after the roll holding device 103, arranged on a dancer arm 121 dancer roller 113 and / or Bahnkantenausrichter 114 and / or, formed by a pull roller 118 and a Zugpresseur 117 feed slot 119 and as first measuring roller 141, in particular feed measuring roller 141 formed first measuring device 141 having infeed 139 on. This tension roller 118 preferably has its own drive motor 146 designed as a traction drive motor 146, which is preferably connected to a machine control. The tension roller 118 preferably represents at least one second motor-driven rotational body 118. By means of the dancer roller 113, which is deflectably arranged on a dancer lift 121, a web tension is adjustable and can be kept within limits and / or the web tension is preferably kept within limits. By means of the dancer roller 113, nonuniformities of the web tension are preferably compensated, for example in the case of web wheels 101 running in a non-circular manner. Optionally, the web unwinding device 100 has an adhesive and Cutting device on, by means of a role change flying, ie can go without stopping the printing material 02 vonstatten.

The Rollenabspulvorrichtung 100 preferably has the Bahnkantenausrichter 114, which is also called Web Aligner 114. This web edge aligner 114 is preferably a first web edge aligner 114. This web edge aligner 114 is preferably arranged in front of the at least one first printing unit 200 with regard to the transport path of the printing material web 02. This Bahnkantenausrichter 114 has at least two aligned at least substantially and preferably exactly parallel alignment rollers 116 which are wrapped in a printing operation of the printing substrate 02 and their axes of rotation individually and / or jointly in their respective angular position in space and / or to a transport direction of Printing material 02 are changeable. For this purpose, both alignment rollers 116 are preferably arranged on a frame and can be pivoted together about a pivot axis, which is oriented perpendicular to a plane which contains the axes of rotation of the alignment rollers 116. By means of Bahnkantenausrichters 114, the printing substrate 02 is aligned in its lateral position, that is, a position of its web edges is aligned with respect to the direction A of the width of the printing substrate 02, which is orthogonal to the transport direction of the printing substrate 02. For this purpose, the at least two alignment rollers 116 are aligned as a result of measuring signals of at least one sensor such that a position of the aligning rollers 116 wrapped around the printing substrate 02 with respect to the direction orthogonal to the transport direction of the printing substrate 02 can be controlled within very short periods. For longer-term tendency tendencies of the printing material web 02, the entire printing material roll 101 is preferably moved in the direction A of its axis of rotation 111. For example, for better space utilization, the web edge aligner 114 is preferably arranged above the support arms 107 of the reel unwinding device 100.

The web edge aligner 114 below is preferably an infeed 139 arranged. As a component of the infeed 139, at least the draw roller 118 is preferably arranged, with which preferably the pull press 117 is arranged cooperatively. The draw roller 118 and the Zugpresseur 117 preferably form the feed nip 119, in which the printing substrate 02 is clamped or clamped and through which the printing material 02 is preferably conveyed. However, the draw roller 118 can also be designed, for example, as a suction roller. The draw-in gap 119 is used to regulate a web tension and / or a transport of the printing material 02. The Zugpresseur 117 preferably has a lateral surface, which consists of an elastic material, such as an elastomer. Preferably, the at least one first measuring device 141, designed as a first measuring roller 141, in particular a feed measuring roller 141, is arranged, by means of which a web tension can be measured. Results of these measurements are preferably used as a basis for controlling the web tension. The at least one first measuring device 141 designed as a first measuring roller 141, in particular a feed measuring roller 141, is preferably arranged in front of the intake gap 119 in the transport direction of the printing material web 02. In one embodiment, the Zugpresseur 117 at least one driver, which improves transport of the printing material 02 in the case of a formed as a textile web 02 substrate 02. For example, for better utilization of space, the feed unit 139 is preferably arranged above the support arms 107 of the reel unwinding device 100 and more preferably at the same height as the web edge aligner 114.

A first printing unit 200 is downstream of the Rollenabspulvorrichtung 100 with respect to the transport path of the printing substrate 02. The first printing unit 200 has at least one first central pressure cylinder 201 or, shortly, central cylinder 201. If in the following a central cylinder 201 is mentioned, then a pressure central cylinder 201 is always meant. The at least one first central cylinder 201 preferably represents at least one third motor-driven rotational body 201. The printing material web 02 at least partially wraps around the first central cylinder 201 during printing operation. In this case, a wrap angle is preferably at least 180 ° and more preferably at least 270 °. The wrap angle is the angle measured in the circumferential direction of a cylinder jacket surface of the first central cylinder 201, along which the printing substrate 02 and in particular the printing substrate 02 is in contact with the first central cylinder 201. Accordingly, at least 50% and more preferably at least 75% of the cylinder jacket surface of the first central cylinder 201 are in contact with the printing material web 02 when viewed in the circumferential direction. This means that a partial surface of a cylinder jacket surface of the at least one first central cylinder 201 provided as the contact surface between the at least one first central cylinder 201 and the printing substrate 02 preferably has the wrapping angle about the at least one first central cylinder 201, which is preferably at least 180 ° and more preferably at least 270 °.

Along the transport path of the printing material web 02 in front of the first central cylinder 201 of the first printing unit 200, at least one second measuring device 216, which is preferably designed as a second measuring roller 216, is preferably arranged. This second measuring device 216, which is preferably designed as second measuring roller 216, preferably serves for measuring the web tension. Along the transport path of the printing material web 02 in front of the first central cylinder 201 of the first printing unit 200, preferably at least one first printing material cleaning device 202 or web cleaning device 202 is arranged to act on the printing material web 02 and / or aligned with the transport path of the printing material web 02. The first web cleaning device 202 is preferably designed as a first dedusting device 202. The first web cleaning device 202 preferably has at least one brush and / or at least one suction device and / or device for the electrostatic discharge of particles adhering to the printing substrate web 02. The first web cleaning device 202 is assigned to at least one first side and preferably both sides of the printing material web 02 and in particular aligned at least on this first side of the printing substrate 02 and preferably on both sides of the printing substrate 02 acting and / or effective. Preferably, along the transport path of the printing material web 02 between the at least two alignment rollers 116 having Bahnkantenausrichter 114 and the at least one first central cylinder 201 of the draw roller 118 and the Zugpresseur 117 formed feed nip 119 is arranged. The at least one first web cleaning device 202 is arranged in a preferred embodiment along the transport path of the printing material web 02 after the drawing-in gap 119 and before the first central cylinder 201 acting on the printing substrate 02 and / or aligned with the transport path of the printing substrate 02.

A roller 203 of the first printing unit 200 designed as first deflecting roller 203 is arranged parallel to the first central cylinder 201 with respect to its axis of rotation. This first deflecting roller 203 is preferably arranged at a distance from the first central cylinder 201. In particular, there is a first intermediate space 204 between the first deflecting roller 203 and the first central cylinder 201, which is greater than a thickness of the printing material web 02. Under the thickness of the printing material web 02, a smallest dimension of the printing material web 02 is to be understood. The printing material web 02 preferably wraps around a part of the first deflecting roller 203 and is deflected by the latter in such a way that the transport path of the printing material web 02 in the first intermediate space 204 is both tangential to the first deflecting roller 203 and tangential to the first central cylinder 201. A lateral surface of the deflection roller 203 preferably consists of a comparatively inelastic material, more preferably a metal, even more preferably steel or aluminum.

Preferably, at least one first cylinder 206 designed as the first impression roller 206 is arranged in the first pressure unit 200. The first impression roller 206 preferably has a lateral surface which consists of an elastic material, for example an elastomer. The first impression roller 206 is preferably arranged by means of a Anstellantriebs to the first central cylinder 201 and / or arranged abstellbar, further preferably in a linear direction of movement, even more preferably radially relative to an axis of rotation 207 of the first central cylinder 201. In a state employed on the first central cylinder 201, the first impression roller 206 forms a first impression gap 209 together with the first central cylinder 201. The printing substrate 02 passes through the first impression gap 209 in the printing operation. The first deflection roller 203 and / or preferably by the first impression roller 206, the printing material web 02 is applied flat and preferably in a clear and known position to the first central cylinder 201. Preferably, apart from at most the first impression roller 206 and / or optionally further impression rollers and / or optionally at least one adhesive application device 218, no further rotation body, in particular no further roller and no further cylinder with the at least one first central cylinder 201 in contact. Preferably, a plane containing both the axis of rotation 207 of the first central cylinder 201 and a rotational axis of the first impression roller 206 has a surface normal deviating from a horizontal direction by at most 20 ° and more preferably at most 10 °. More preferably, the axis of rotation of the first impression roller 206 is arranged below the axis of rotation of the first central cylinder 201.

The first central cylinder 201 has its own first drive motor 208 assigned to the first central cylinder 201, which is preferably designed as an electric motor 208 and which is further preferably designed as a direct drive 208 and / or individual drive 208 of the first central cylinder 201. A direct drive 208 is to be understood as meaning a drive motor 208 which is in torque transmitting and / or transferable connection without the interposition of further rotational bodies in contact with the printing material 02 with the at least one first central cylinder 201. A single drive 208 is to be understood as a drive motor 208, which is designed as the drive motor 208 exclusively of the at least one first central cylinder 201. The first drive motor 208 of the first central cylinder 201 is preferably designed as a synchronous motor 208. Nevertheless, the use of an asynchronous motor is conceivable. The first drive motor 208 of the first central cylinder 201 preferably has at least one permanent magnet, which is more preferably part of a rotor of the first Drive motor 208 of the first central cylinder 201 is.

On the first drive motor 208 of the first central cylinder 201 and / or on the first central cylinder 201 itself, a first rotation angle sensor is preferably arranged which measures a rotational angle position of the first drive motor 208 and / or the first central cylinder 201 itself measuring and / or measurable and to a higher-level machine control is designed to send and / or send. The first rotation angle sensor is designed, for example, as a rotary encoder or absolute value encoder. With such a rotation angle sensor, a rotational position of the first drive motor 208 and / or preferably a rotational position of the first central cylinder 201 is preferably determined absolutely by means of the higher-level machine control. The first drive motor 208 of the first central cylinder 201 is preferably arranged on a first axial end of the first central cylinder 201, which is related to the axis of rotation 207 of the first central cylinder 201, while the rotational angle sensor preferably is located on a second axial end, which is related to the axis of rotation 207 of the first central cylinder 201 of the first central cylinder 201 is arranged. The rotation angle sensor preferably has a particularly high resolution, for example a resolution of at least 3,000 (three thousand) and preferably at least 10,000 (ten thousand) and more preferably at least 100,000 (one hundred thousand) increments per full angle (360 °). The rotation angle sensor preferably has a high temporal sampling frequency.

Additionally or alternatively, the first drive motor 208 of the first central cylinder 201 is connected in such a circuit with the machine control that the machine control at any time on the basis of given by the machine control to the first drive motor 208 of the first central cylinder 201 target data to a rotational position of the first drive motor 208 via the Rotary position of the first drive motor 208 and thus at the same time the rotational position of the first central cylinder 201 is informed. In particular, a region which predetermines the rotational angle position or rotational position of the first central cylinder 201 and / or the first drive motor 201 Machine control directly, in particular without interposed sensor, connected to a the at least one print head 212 of the first printing unit 200 controlling area of the machine control.

Within the first printing unit 200, at least a first printing unit 211 is arranged. The at least one first printing unit 211 is preferably arranged in the direction of rotation of the first central cylinder 201 and thus along the transport path of the printing material web 02 after the first impression roller 206 acting on the at least one first central cylinder 201 and / or capable of acting and / or aligned. The at least one first printing unit 211 is formed as a first inkjet printing unit 211 and is also called first inkjet printing unit 211. The first printing unit 211 has at least one nozzle bar 213 and preferably a plurality of nozzle bars 213. The at least one first printing unit 211 and thus the at least one first printing unit 200 has at least one first printing head 212, which is designed as an inkjet printing head 212. Preferably, the at least one nozzle bar 213 has at least one print head 212 and preferably a plurality of print heads 212. Each printhead 212 preferably has a plurality of nozzles from which ink droplets are ejected and / or ejected. A nozzle bar 213 is a component which preferably extends over at least 80% and more preferably at least 100% of a width of the printing material web 02 and / or an axial length of the bale of the at least one first central cylinder 201 and serves as a carrier of the at least one print head 212 , In this case, a single or several nozzle bars 213 per printing unit 211 are arranged. Each nozzle is associated with a clearly defined target area in the direction A of the width of the printing material web 02 and thus with respect to the direction A of the axis of rotation 207 of the at least one first central cylinder 201. Each target region of a nozzle is clearly defined, in particular with respect to the circumferential direction of the at least one first central cylinder 201. In particular, a nozzle of the at least one nozzle bar 213 is a nozzle of a print head 212, which is assigned to this at least one nozzle bar 213 and / or which is arranged on this at least one nozzle bar 213 and preferably arranged with this at least one nozzle bar 213 movable together.

The at least one first nozzle bar 213 preferably extends in the axial direction A, ie in the direction A of the width of the printing material web 02 over the entire width of the printing material web 02. The at least one nozzle bar 213 has at least one row of nozzles. The at least one row of nozzles, viewed in the axial direction A, preferably has nozzle openings at regular intervals over the entire width of the printing material web 02 and / or a bale of the at least one first central cylinder 201. In one embodiment, a single continuous print head 212 is arranged for this purpose, which extends in the axial direction A over the entire width of the printing material web 02 and / or the entire width of the bale of the at least one first central cylinder 201. In this case, the at least one row of nozzles is preferably designed as at least one linear, over the entire width of the printing material 02 in the axial direction A extending juxtaposition of individual nozzles. In another, preferred embodiment, a plurality of print heads 212 are arranged next to each other on the at least one nozzle bar 213 in the axial direction A. Since usually such individual print heads 212 are not provided with nozzles up to an edge of their housing, preferably at least two, and more preferably exactly two, rows of print heads 212 extending in the axial direction A are arranged offset relative to one another in the circumferential direction of the first central cylinder 201, preferably so in that in the axial direction A consecutive printheads 212 are always alternately associated with one of the at least two rows of printheads 212, preferably always alternately a first and a second of two rows of printheads 212. Two such rows of printheads 212 form a double row of printheads 212. Each Double row print heads 212 preferably have between five and fifteen print heads 212, and more preferably seven print heads 212. The at least one row of nozzles is then not formed as a single linear juxtaposition of nozzles, but results in a sum individual, in particular two, arranged in the circumferential direction offset from one another juxtaposition of nozzles.

If a print head 212 has a plurality of nozzles, then all target areas of the nozzles of this print head 212 together form a working area of this print head 212. Working areas of print heads 212 of a nozzle bar 213 and in particular a double row of print heads 212 adjoin one another and / or overlap in the axial direction A. seen in the axial direction A. In this way, even when the print head 212 is not continuous in the axial direction A, target areas of nozzles of the at least one nozzle bar 213 and / or in particular of each double row of print heads 212 are located at regular and preferably periodic intervals in the axial direction A. In any case, an entire working area of the at least one nozzle bar 213 preferably extends at least in one printing operation preferably over at least 90% and more preferably 100% of the total width of the printing substrate 02 and / or the entire width of the bale of the at least one first central cylinder 201 in the axial direction A. This working area of the at least one nozzle bar 213 is preferably a totality of all working areas of all the printing heads 212 of this at least one nozzle bar 213. On one or both sides with respect to the axial direction A, a narrow area of the printing material web 02 and / or the bale of the first Central cylinder 201 may be present that does not belong to the working area of the nozzle bars 213. An entire working area of a double row of print heads 212 corresponds to the working area of the at least one nozzle bar 213 in the direction A of the width of the printing material web 02.

The at least one nozzle bar 213 preferably has a plurality of rows of nozzles in the circumferential direction with respect to the at least one first central cylinder 201. Preferably, each print head 212 has a plurality of nozzles arranged in a matrix of a plurality of rows in the axial direction A and / or a plurality of columns in the circumferential direction of the at least a first central cylinder 201 are arranged. Preferably, in a direction orthogonal to the axial direction A, a plurality of rows of printheads 212, more preferably four double rows, and more preferably eight double rows of printheads 212, are sequentially arranged. More preferably, in the circumferential direction with respect to the at least one first central cylinder 201 a plurality of rows of printheads 212, more preferably four double rows and still more preferably eight double rows of printheads 212 arranged successively aligned on the at least one first central cylinder 201. In this case, the print heads 212 are preferably aligned in such a way that the nozzles of each print head 212 point in the radial direction onto the cylinder jacket surface of the at least one first central cylinder 201. This means that the at least one print head 212 aligned with the lateral surface of the at least one first central cylinder 201 is aligned with the rotational surface 207 of the at least one first central cylinder 201 in a radial direction on the lateral surface of the at least one first central cylinder 201. In this case, this radial direction is a radial direction relative to the axis of rotation 207 of the at least one first central cylinder 201. Each double row of printheads 212 is preferably associated with an ink of a particular color, for example one of the colors black, cyan, yellow and magenta or a varnish, for example a clear varnish. The corresponding inkjet printing unit 211 is preferably formed as a four-color printing unit 211 and allows a one-sided four-color printing of the printing substrate 02. It is also possible to print fewer or more different colors with a printing unit 211, for example, additional spot colors. Preferably, correspondingly more or fewer printheads 212 and / or double rows of printheads 212 are arranged within this corresponding printing unit 211. In one embodiment, a plurality of rows of printheads 212, more preferably four double rows, and more preferably eight double rows of printheads 212, are sequentially aligned with at least one surface of at least one transfer body, eg at least one transfer cylinder and / or at least one transfer belt arranged.

The at least one print head 212 preferably works to generate drops of ink by the drop-on-demand method. In principle, it is also conceivable to use print heads 212 which work according to another method for producing drops of ink, for example the continuous-ink-jet process. In the drop-on-demand process, ink droplets are selectively generated as needed. Preferably, at least one piezo element is used per nozzle, which can reduce a volume filled with ink at high speed by a certain amount when a voltage is applied. This displaces ink which is ejected through a nozzle connected to the volume filled with ink and forms at least one ink droplet. By applying different voltages to the piezo element is on the travel of the piezoelectric element and thus the reduction of the volume and thus the size of the ink droplets influence. In this way, color gradations in the resulting print image can be realized without changing a number of drops contributing to the print image (amplitude modulation). It is also possible to use at least one heating element per nozzle, which generates a gas bubble in a volume filled with ink at high speed by evaporation of printing ink. The additional volume of the gas bubble displaces ink, which in turn is ejected through the corresponding nozzle and forms at least one ink droplet.

In the drop-on-demand method, a droplet deflection after ejection from the corresponding nozzle is not necessary since it is possible to set a target position of the respective ink droplet on the moving printing substrate 02 with respect to the circumferential direction of the at least one first central cylinder 201 solely by an emission time of set respective ink drop and a rotational speed of the first central cylinder 201 and / or by the rotational position of the first central cylinder 201. By single control of each nozzle only to At selected times and at selected locations, ink droplets are transferred from the at least one print head 212 to the printing material web 02. This is done as a function of the rotational speed and / or the rotational angle position of the at least one first central cylinder 201, a distance between the respective nozzle and the printing substrate 02 and the position of the target area of the respective nozzle with respect to the circumferential angle. This results in a desired printed image, which is designed as a function of the control of all nozzles.

As described, the first drive motor 208 of the first central cylinder 201 is preferably connected to the machine control in such a manner that the machine control at any time via the setpoint data to a rotational position of the first drive motor 208 given by the machine control to the first drive motor 208 of the first central cylinder 201 Rotary position of the first drive motor 208 and thus at the same time the rotational position of the first central cylinder 201 is informed. An ejection of ink droplets from the at least one nozzle of the at least one print head 212 then takes place as a function of the predetermined by the machine control rotational position of the first drive motor 208. Here are the predetermined by the machine control to the first drive motor 208 target data of the rotational position of the first drive motor 208 preferably includes in real time a calculation of data for driving the nozzles of the at least one printhead 212. A comparison with actual data of the rotational position of the first drive motor 208 is preferably not necessary and preferably does not take place.

The first printing unit 200 preferably has at least one storage container for each printing ink to be processed. This at least one storage container preferably has a capacity of 10 liters to 100 liters. Preferably, at least one and more preferably each of these reservoirs is connected via at least one line to at least one buffer memory. The at least one buffer memory preferably has a capacity of 1 liter to 10 liters. By in the arranged at least one buffer memory amount of ink, it is possible to replace one or more reservoirs without interrupting a current printing operation. Preferably, at least one, and more preferably, each of these buffer memories is connected via at least one further line, designated as a feed line, to at least one intermediate store. The at least one buffer preferably has a capacity of 0.1 liter to 1 liter. The at least one buffer is connected to the at least one printhead 212. Preferably, each double row of printheads 212 is associated with a pair of latches each. Preferably, at least one processing device is arranged between the at least one storage container and the at least one print head 212 and more preferably between the at least one storage container and the at least one buffer, by means of which preferably corresponding printing ink can be freed from dirt and / or gas bubbles.

The at least one temporary store is preferably arranged above the printhead 212 cooperating with the respective intermediate store. Preferably, a difference in height between the at least one print head 212 and the respective at least one buffer for a plurality of, and more preferably for all print heads 212, is equal in each case. Thus, it is ensured that a hydrostatic pressure of the ink for each printhead 212 present at the at least one printhead 212 is the same and thus equal operating conditions for all printheads 212 prevail. Preferably, at least the at least one supply line, which connects the at least one temporary store to the at least one print head 212, is subjected to a negative pressure and / or acted upon. As a result, for example, an unwanted escape of ink from the at least one print head 212 is prevented. Preferably, each printhead 212 also has at least one drain through which preferably dried or soiled ink can be removed from the at least one printhead 212 without being expelled by a nozzle intended for printing. The at least one derivative is preferred with at least connected to a waste container.

Due to the alignment of the printing material web 02 by means of Bahnkantenausrichters 114 and optionally by the first impression roller 206 of the first printing unit 200 and the large wrap angle of the printing substrate 02 to the at least one first central cylinder 201 and optionally by other devices, such as drivers, explained in more detail below are, it is ensured that the printing substrate 02 is arranged without slippage in a precisely defined position on the cylinder surface of the at least one first central cylinder 201 and also remains until a selective detachment at the end of the range of wrap. Due to the contact of the printing material web 02 with the cylinder jacket surface of the at least one first central cylinder 201, swelling of the printing material web 02 at least in the transport direction of the printing material web 02 and at least for the duration of contact of a respective region of the printing substrate web 02 with the cylinder jacket surface of the at least one first central cylinder 201 even after contact with drops of ink prevented or at least sufficiently reduced. This ensures that ink droplets of different print heads 211 are applied to a printing material web 02 arranged in a uniformly defined manner. An exact and constant position of the printing material web 02 relative to the at least one first central cylinder 201 is of great importance for a passport-conforming and / or register-compatible printed image.

The nozzles of the at least one print head 212 are arranged such that a distance between the nozzles and the printing material web 02 arranged on the cylinder jacket surface of the at least one first central cylinder 201 is preferably between 0.5 mm and 5 mm and more preferably between 1 mm and 1.5 mm. The high angular resolution and / or the high sampling frequency of the rotation angle sensor enables a very accurate position determination of the printing substrate 02 relative to the nozzles and their target areas. A drop flight time between the nozzles and the printing material web 02 is known for example by a teach-in process and / or by the known distance between the nozzles and the printing material 02 and a known drop speed. From the rotational angle position of the at least one first central cylinder 201, the rotational speed of the at least one first central cylinder 201 and the droplet flight time, an ideal time for ejecting a respective droplet is determined so that a passer-like and / or register-compliant imaging of the printing material web 02 is achieved.

Preferably, at least one, designed as a first print image sensor sensor is arranged, more preferably at a point along the transport path of the printing substrate 02 after the first printing unit 211. The at least one first print image sensor is formed for example as a first line scan camera or as the first area camera. The at least one first print image sensor is designed, for example, as at least one CCD sensor and / or as at least one CMOS sensor. By means of this at least a first print image sensor and a corresponding evaluation unit, for example the higher-level machine control, a control of all in the circumferential direction of the at least one first central cylinder 201 successive and / or acting print heads 212 and / or double rows of print heads 212 of the first printing unit 211 is monitored and controlled , In a first embodiment of the at least one print image sensor, only a first print image sensor is arranged, the sensor field of which covers the entire width of the transport path of the printing material web 02. In a second embodiment of the at least one print image sensor only a first print image sensor is arranged, which is designed to be movable in the direction A orthogonal to the direction of the transport path of the printing substrate 02. In a third embodiment of the at least one print image sensor, a plurality of print image sensors are arranged, whose respective sensor fields each comprise different regions of the transport path of the printing material web 02. Preferably, these areas are arranged offset in the direction A orthogonal to the direction of the transport path of the printing substrate 02 to each other. Preferably, an entirety of the sensor fields comprises the plurality Print image sensors an entire width of the transport path of the printing substrate 02.

A ply of pixels formed by ink droplets originating from a respective first printhead 212 is preferably compared to a ply of pixels formed by ink drops emerging from a respective second one in the circumferential direction of the at least one first central cylinder 201 originate the printhead 212 lying printhead 212 respectively. This is preferably done independently of whether these each process first and second, in the circumferential direction of the at least one first central cylinder 201 successive and / or acting print heads 212 a same or a different ink. A tuning of the layers of printed images from different printheads 212 is monitored. For the same inks, register-based joining of partial images is monitored. For different inks, a register or color register is monitored. A quality control of the printed image is preferably also carried out with the measured values of the at least one printed image sensor.

Depending on the speed with which individual nozzles can be controlled and operated, the printing substrate 02 may need to be printed several times with the same printing ink until the desired result can be achieved. For this purpose, each printing ink is preferably associated with at least two double rows of printing heads 212 lying one behind the other in the circumferential direction of the first central cylinder 201. Thus, a resolution of 600 dpi (600 pixels per inch) is achieved at a transport speed of the printing substrate 02 of 2 m / s and a four-color printing. Preferably even higher web speeds of 150 m per minute or more are possible. Smaller resolutions and / or fewer colors allow correspondingly higher transport speeds. In particular, instead of a four-color print, two-color printing may be performed, for example, when each of the two colors is assigned to each half of the print heads 212 becomes. Thus, for example, the printing speed can be doubled. A larger number of print heads 212 is another way to influence the achievable print resolution and / or transport speed and / or color selection. In particular, attention must be paid to a sufficiently high data processing speed of the controller controlling the printheads 212.

In a regular printing operation, all printheads 212 are stationary. This ensures a permanent passport-oriented and / or register-oriented alignment of all nozzles. Different situations are conceivable in which a movement of at least one or more of the print heads 212 or all print heads 212 is necessary. A first such situation is, for example, a flying roll change or generally a roll change with a bonding process. A printing material web 02 is connected to another printing material web 02 by means of an adhesive strip. This results in a connection point, which must pass through the entire transport path of the printing substrate 02. This connection point has a thickness, ie a smallest dimension, which is greater than a thickness of the printing material web 02. Essentially, the connection point is as thick as two printing substrate webs 02 and the adhesive strip together. As a result, difficulties may arise when the joint passes through the gap between the nozzles of the print heads 212 and the cylinder jacket surface of the at least one first central cylinder 201. The at least one nozzle bar 213 is therefore movable in a radial direction relative to the rotation axis 207 of the at least one first central cylinder 201. In this way, the distance can be sufficiently increased, but must be subsequently reduced accordingly again. A second such situation results, for example, in a maintenance of at least one of the print heads 212. The print heads 212 are preferably individually attached to the at least one nozzle bar 213 and individually detachable from the at least one nozzle bar 213. This allows individual printheads 212 to be maintained and / or cleaned and / or replaced.

If a plurality of mutually movable nozzle bars 213 are arranged, then, for example, if at least one nozzle bar 213 is returned to a pressure position, minimal misalignments of the nozzle bars 213 may occur with one another. An alignment requirement can thus occur, in particular all print heads 212 of a nozzle bar 213 to printheads 212 other nozzle bars 213. If a new and / or reordering printhead 212 attached to the at least one nozzle bar 213, to which at least one other printhead 212 is attached, so At first, not necessarily, but at most by chance, a precisely matching orientation of this new and / or re-arranged print head 212 to the at least one already attached print head 212 in the circumferential direction and / or in the axial direction A relative to the at least one first central cylinder 201. Again Thus, an alignment requirement may arise, in particular a single print head 212 to other print heads 212 of the same nozzle bar 213 and / or other nozzle bar 213.

At least one sensor detects a position of the target area of at least one example of a new and / or re-arranged printhead 212, for example relative to a position of the target area of at least one printhead 212 already attached. This is preferably done by comparing positions of the printheads 212 generated by the respective printheads 212 Pixels on the substrate web 02. As a sensor for this, the already described at least one first image sensor is preferably used. However, it is also possible for this purpose to use a sensor other than the already described at least one first print image sensor, for example a sensor specialized in this task. These relative positions are evaluated by means of an evaluation unit, for example the higher-level machine control.

An installation position of the at least one, for example, new and / or arranged again Printhead 212 in the circumferential direction with respect to the at least one first central cylinder 201 can be compensated via the control of the nozzles of this printhead 212, preferably analogously to the already described adaptation of printheads 212 of different double rows of printheads 212. An installation position of the at least one, for example new and / or reprocessed print head 212 relative to other print heads 212 of at least one nozzle bar 213 and / or to other nozzle bars 213 at least with respect to the axial direction A with respect to the at least one first central cylinder 201 is preferably adjustable by means of at least one adjustment mechanism. Preferably, a plurality of print heads 212, in particular a plurality of print heads 212 of the at least one nozzle bar 213 and / or the at least one printing unit 211 each have their own adjustment mechanism. Further preferably, all print heads 212 of the at least one nozzle bar 213 and / or all print heads 212 of the at least one printing unit 211 each have their own adjustment mechanism. It is conceivable to use a print head 212 as a reference, after which all other print heads 212 are aligned. This used as a reference printhead 212 then does not need its own adjustment mechanism. Each such adjustment mechanism preferably has at least one linear drive, which is preferably designed as an electric motor and more preferably as a stepper motor. The linear drive has, for example, a spindle drive and / or a rack and a pinion. In another embodiment, the linear drive has an eccentric and a groove interacting therewith. Each print head 212, which has a linear drive, is preferably arranged to be movable at least parallel to the axial direction A by means of its linear drive.

After installation of at least one print head 212, a test print is preferably carried out in which the new and / or re-arranged print head 212 and at least one print head 212 serving as a reference transmit print drops to the print substrate 02. The test printout is preferably detected automatically by means of a sensor, for example the first print image sensor. In one by the Test print detected deviation of an actual position of the at least one new and / or re-arranged printhead 212 is preferably automated adjustment of the position of this printhead 212 in the axial direction A by means of the adjustment mechanism and / or an adjustment of the control of the nozzles of this printhead 212 with respect to a Drop ejection timing made. The test print-out may, for example, be in the form of a test strip extending over part or all of the axial width of the printing substrate 02. Such test prints and in particular test strips are preferably also printed in a running printing operation at least temporarily on the printing substrate 02, for example in a region between two printed images, which represents a border area in the production of finished printed products, which is already cut off, in particular regardless of whether a test printout arranged on it or not. The at least one sensor then registers the printed image of the at least one test printout. In particular, a plurality of such test printouts can be detected successively in time with a sensor which is moved in each case to different axial positions in order to examine the position of the pixels there.

The at least one nozzle bar 213 is preferably arranged movably in the axial direction A, more preferably so far that no nozzle of the nozzle bar 213 and / or no working area of a print head 211 of the nozzle bar 213 has a same position with respect to the axial direction A as any component the bale of the at least one first central cylinder 201. For this purpose, at least one linear guide is preferably arranged. A nozzle of the at least one nozzle bar 213 is preferably a nozzle of a printhead 212, which is assigned to at least one nozzle bar 213 and / or which is arranged on this at least one nozzle bar 213 and more preferably with this at least one nozzle bar 213 is arranged movable together. A carriage carrying the at least one nozzle bar 213 is arranged movably along the at least one linear guide. For maintenance of the printing unit 211, the at least one nozzle bar 213 Preferably, first in a direction oriented radially to the axis of rotation 207 of the at least one first central cylinder 201 direction of the at least one first central cylinder 201 and then moved in the axial direction A. Preferably, a protective cover is arranged, which is movable in a position relative to the at least one nozzle bar 213, in which the protective cover is arranged to cover all the nozzles of the at least one nozzle bar 213 parked by the at least one first central cylinder 201. In this way, drying of the nozzles is prevented. Preferably, in this position, both the nozzles of the at least one nozzle bar 213 and the protective cover with respect to the axial direction A in the bale of the at least one first central cylinder 201. More preferably, the at least one nozzle bar 213 and the protective cover in this position limit an airtight closed volume within which the nozzle openings are arranged.

Preferably, at least one nozzle cleaning device is arranged, which has a number of washing nozzles and / or brushes and / or pullers. This at least one nozzle cleaning device is preferably movable in the axial direction A and / or from below to the nozzles of the at least one nozzle bar 213 movable up. Additionally or alternatively, the at least one nozzle bar 213 is movable from above to the nozzle cleaning device. Preferably, the at least one nozzle cleaning device is connected to the protective cover and / or movable together with the protective cover, for example in the axial direction A. Preferably, the at least one nozzle cleaning device but also relative to the protective cover movable, for example, the at least one nozzle cleaning device from the completed To remove volume. The protective cover preferably serves at the same time as a collecting container for leaked from the washing nozzles and / or from the nozzles dripping cleaning liquid and / or dirt and / or ink. The at least one nozzle bar 213 is completely independent of those components of the printing press 01 movable, the Substrate web 02 are arranged touching. Thus, such cleaning and / or maintenance can be carried out without affecting the printing material web 02 and in particular without having to remove the printing material web 02 from the printing press 01.

Preferably, the at least one print head 212 and / or its nozzles can be cleaned in a first and / or a second manner. In the first type of cleaning ink is preferably promoted by switching off the negative pressure and / or under increased pressure through the nozzles of the at least one print head 212, preferably in such a large amount that impurities and / or dried ink is entrained and preferably in the collection container serving protective cover is initiated. This is preferably closed with a separate, different from the at least one nozzle bar 213 closure and separately cleaned, in particular flushable. The first type of cleaning is the preferred type of cleaning. For example, with heavier soils, the second type of cleaning is performed. In this case, the entire at least one print head 212 and its feed lines and preferably also the respective intermediate stores of printing ink are in each case completely freed and flushed with a cleaning liquid. This cleaning liquid is again preferably collected by means of the protective cover serving as a collecting container. This approach is accompanied by a greater loss of ink, but offers the advantage of a particularly intensive cleaning.

After the printing substrate 02 has passed the at least one first printing unit 200, the printing material web 02 is transported further along its transport path and preferably fed to the at least one first dryer 301 of the at least one dryer unit 300. The at least one first dryer 301 is accordingly arranged with respect to the transport path of the printing material web 02 after the first printing unit 211 and in particular after the at least one first printing unit 200. Preferably, the first side of the at least one first printing unit 200 is printed Substrate web 02 between a last contact point of the printing substrate 02 with the at least one first central cylinder 201 of the at least one first printing unit 200 and an area of action of the at least one first dryer 301 with no component of the roller printing machine 01 in contact. Preferably, the second, in particular not printed by the first printing unit 200, the at least one first central cylinder 201 of the at least one first printing unit 200 contacting side of the printing substrate 02 between the last contact point of the printing substrate 02 with the first central cylinder 201 of the at least one first printing unit 200 and the area of action of the at least one first dryer 301 with at least one deflecting roller 214 of the at least one first printing unit 200 and / or with at least one deflecting roller 312 of the at least one first dryer 301 in contact.

Preferably, the at least one deflection roller 214 of the first printing unit 200 is arranged, which more preferably the printing material web 02, after it has been detached in one direction with a larger vertical, preferably downwardly oriented component than optionally present horizontal component of the at least one first central cylinder 201, in deflects a direction that has a greater horizontal component than any vertical component that may be present. In this case, only the second side of the printing material web 02 not printed by the first printing unit 200 is in contact with this at least one deflecting roller 214 of the first printing unit 200. At least one third measuring device 214, which is also preferably designed as a third measuring roller 214, is preferably arranged. This third measuring device 214 is used to measure the web tension. More preferably, the at least one deflecting roller 214 of the first printing unit 200 is identical to the third measuring device 214 designed as the third measuring roller 214. Preferably, at least one guide roller 312 of the at least one first dryer 301 is arranged, which aligns the printing material web 02 from this direction or another direction with a larger horizontal component than any vertical component present in a direction with a larger vertical, preferably upwardly oriented Component as possibly existing horizontal component deflects. In this case, only the second side of the printing material web 02, which is not printed by the first printing unit 200 and touches the at least one first central cylinder 201 of the at least one first printing unit 200, is in contact with the at least one deflection roller 312 of the at least one first dryer 301.

The at least one first dryer 301 is preferably designed as an infrared radiation dryer 301. The at least one first dryer 301 preferably has at least one and preferably several, more preferably at least six and even more preferably at least ten radiation sources 302 arranged one behind the other in the transport direction of the printing substrate 02, which are preferably designed as infrared radiation sources 302. A radiation source 302, preferably infrared radiation source 302, is a device by means of which targeted electrical energy is converted into radiation, preferably infrared radiation, and / or is convertible and is directed onto the printing material web 02 and / or can be directed. The at least one radiation source 302 preferably has a defined area of action. In particular, the exposure region of a radiation source 302 is in each case the region which contains all the points which, in particular, can be connected in a straight line directly or via reflectors to the radiation source 302 without interruption. The area of action of the at least one first dryer 301 is composed of the areas of action of all the radiation sources 302 of the at least one first dryer 301. The area of action of the at least one first dryer 301 preferably points from the at least one radiation source 302 to one of the at least one radiation source 302 closest to the transport path of the printing material web 02.

The at least one radiation source 302 has a length and a width and a height. The length of the radiation source 302 is at least five times as large as the width and the height of the radiation source 302. Preferably, the length of the at least one radiation source 302 in the axial direction A extends parallel to the axis of rotation 207 This means that the at least one first dryer 301 has at least one radiation source 302, which is in a horizontal, orthogonal to the transport path of the printing material 02 through the at least a first dryer 301 oriented direction A extends. The arrangement of a plurality of radiation sources 302 oriented in this way in the transport direction of the printing substrate 02 in succession allows adaptation of a total of radiated on the printing substrate 02 radiation power to each applied to the substrate 02 color amount and / or color density.

The at least one radiation source 302 preferably has at least one and more preferably two tubes whose diameters are preferably between 10 mm and 50 mm. The at least one tube preferably consists of material which is at least partially permeable to radiation in the infrared range, more preferably of a quartz glass. Arranged inside each such tube is at least one incandescent body, preferably an incandescent filament or an annealing strip, which preferably consists of tungsten and / or a tungsten alloy and / or carbon (carbon). The filament may for example consist of tungsten carbide. Preferably, a reflector layer is applied to a side of the tubes facing away from the printing substrate 02. The incandescent bodies act as heating resistors, which cause heating and heat emission during current flow. Each radiation source 302 has a housing 316 which preferably has at least one and more preferably a plurality of ventilation openings and which preferably is not arranged between the incandescent bodies and the printing material web 02. Preferably, all the vent openings open into a common air discharge line 318.

In one embodiment, which is preferably identical to that described above and below except for alignment of the at least one radiation source 302, the length of the at least one radiation source 302 is aligned parallel to the transport direction of the printing material web 02. Preference is then given to several Radiation sources 302 in the direction A of the width of the printing substrate 02 arranged side by side. This means that the at least one first dryer 301 has at least one radiation source 302 which extends in a direction which has at least one component oriented parallel to the transport path of the printing substrate 02 through the at least one first dryer 301. In this way, it is possible to optimize printing material webs 02 of different widths optimally, without spending too much energy and / or risking overheating of the at least one first dryer 301. An adaptation of the dryer power can take place via a preferably individual regulation of a radiation power of the at least one radiation source 302.

Preferably, however, the plurality of radiation sources 302 are arranged parallel to each other with respect to their length. Preferably, the plurality of radiation sources 302 are arranged side by side in a direction which is aligned orthogonally to the length of the radiation sources 302 and / or which extends along the transport path of the printing material web 02. Thus, a plurality of radiation sources 302 preferably extend orthogonally to the transport direction of the printing material web 02 and are arranged one behind the other in the transport direction / the printing material web 02. The radiation emitted by the at least one radiation source 302 removes moisture from the printing material web 02 and / or from the printing ink disposed thereon and absorbs it from the ambient air in an interior space of the at least one first dryer 301. The transport path of the printing substrate 02 extends through this interior of the at least one first dryer 301. To achieve a permanently high drying performance, a tempering of components of the at least one first dryer 301 and / or a venting of the interior of the at least one first dryer 301 is provided , For this purpose, at least one tempering device is preferably arranged in the region of the at least one radiation source 302. In a preferred embodiment, the temperature control device is designed as a ventilation device. The ventilation device preferably also serves for removal moisture from the at least one first dryer 301.

The ventilation device has at least one air supply line 317 and preferably at least one ventilation opening 313 connected thereto and an air discharge line 318, and preferably at least one ventilation opening connected thereto. The at least one ventilation opening 313 is traversed by air in a direction directed into the interior of the at least one dryer 301. The at least one first dryer 301 is therefore likewise designed as a flow dryer 301 in addition to its design as a radiation dryer 301. Alternatively or additionally, the at least one first dryer 301 is designed as a UV radiation dryer 301 and / or as a pure flow dryer 301, for example hot air dryer 301. Preferably, at least one preferably slot-shaped ventilation opening 313 is arranged. More preferably, at least one, preferably slot-shaped ventilation opening 313 is arranged at least between two radiation sources 302 and even more preferably between in each case two radiation sources 302. The housing 316 of at least one and preferably each radiation source 302 preferably has at least one ventilation opening, more preferably a multiplicity of ventilation openings.

In one embodiment, such a tempering device has at least one fluid-tempered, preferably liquid-tempered component, which is preferably arranged at a distance of at most 50 cm, more preferably at most 15 cm, from the at least one radiation source 302. For example, such a fluid-temperature-controlled component is arranged in the area of action of the at least one first dryer 301. Such a fluid-tempered component is for example a Bedruckstoffleitelement, for example, a Bedruckstoffleitblech having at least one, with tempering fluid and preferably temperature-controlled liquid and / or flow-through line and / or is connected to such. Alternatively or additionally, in one embodiment at least one part of the housing 316 of at least one and preferably each radiation source 302 has at least one with tempering fluid and is preferred Temperierflüssigkeit flowed through and / or through-flowable line and / or is connected to such. As tempering fluid, for example, water is used.

Air is introduced into the interior of the at least one first dryer 301 through the at least one ventilation opening 313. In the first dryer 301 there is preferably an overpressure. In the interior of the first dryer 301, water and / or solvent of the printing inks to be removed by the infrared radiation from the printing material web 02 are removed and taken up by the introduced air. This air is then removed through the at least one vent opening from the at least one first dryer 301. By removing this air, which has absorbed the excess water and / or solvent, on the one hand, saturation of the air arranged in the first dryer 301 with water and / or solvent is avoided and, on the other hand, additional heat energy is transported away from the interior of the dryer 301. This increases an efficiency of the first dryer 301 and a lifetime of the radiation sources 302.

The at least one ventilation opening 313 is preferably connected upstream of the at least one air supply line 317, and the at least one ventilation opening is connected downstream of the at least one air discharge line 318. Preferably, at least one conveying device, for example a pump, is connected to the at least one air supply line 317 and more preferably at least indirectly to the at least one air discharge line. Preferably, at least one controllable and more preferably controllable gas valve is arranged. This at least one gas valve is preferably adjustable by hand and / or coupled to a drive and / or motor-driven and preferably designed as a branch with at least one flap. A first line connected to an input of the at least one gas valve is preferably the at least one air discharge line 318. A second line connected to an outlet of the at least one gas valve preferably leads, for example, to a disposal device and / or reprocessing device. A third with an output of at least a gas valve connected line preferably leads to the at least one conveyor. At least one further line, for example a fresh air line, also leads to the at least one conveying device.

By means of the at least one gas valve, a portion of the air discharged from the at least one first dryer 301 can be adjusted, which, preferably by means of the at least one conveyor, is fed back to the at least one first dryer 301. For this purpose, the at least one gas valve is preferably adjusted so that a preferably from 0% to 100% adjustable portion of the first flowing through the at least one gas valve line flowing air into the third connected to the at least one gas valve line and thus on the at least one conveyor and the at least one air supply line 317 is again transported into the at least one first dryer 301. The remaining discharged air is supplied to the second line connected to the at least one gas valve and transported away. The at least one gas valve thus determines a portion supplied to the air supply line 317 and a portion of a gas stream flowing through the air discharge line 318, which is discharged as exhaust air. As a result of this evacuation, a negative pressure is created, which is preferably automatically compensated for by transporting further air preferably first into the at least one conveying device and into the at least one first drier 301 via the fresh air line. Preferably, the negative pressure itself ensures a suction of a necessary volume of air through the fresh air line. In this way, an effectiveness of the at least one first dryer 301 is improved because not completely saturated exhaust air is reused and thereby heat energy can be saved because the warm air is re-introduced. On the other hand, necessary treatment measures reduce the volume of air to be cleaned.

The at least one ventilation opening 313 and / or the at least one air supply line 317 and / or the at least one ventilation opening and / or the at least one air discharge line 318 and / or the at least one delivery device and / or the At least one gas valve and / or the at least one second line connected to the at least one gas valve and / or the at least one disposal device and / or reprocessing device and / or the at least one third line and / or fresh air line connected to the at least one gas valve are preferably components of one Ventilation device of the at least one first dryer 301. In particular, this means that preferably the at least one first dryer 301 has the at least one ventilation device and that the at least one ventilation device, the at least one to the at least one first dryer 301 leading air supply line 317 and the at least one of the at least one first dryer away leading air discharge line 318 and the at least one, preferably driven and / or driven, for example, by means of an electric drive driven conveyor and that the at least one air discharge line 318 ü About the at least one conveyor with the at least one air supply line 317 is coupled and / or coupled. A leading to the at least one first dryer 301 air supply line 317 is to be understood in particular a line 317, the interior of which is connected to an interior of the at least one first dryer 301 and whose interior in an operation of the at least one first dryer 301 of a gas in Direction to the interior of the at least one dryer 301 is flowed through. Under a leading away from the at least one first dryer air discharge line 318 is to be understood in particular a conduit 318 whose interior is connected to the interior of the at least one first dryer 301 and whose interior in an operation of the at least one first dryer 301 of a gas in Direction is flowed away from the interior of the at least one dryer 301 away.

Preferably, the transport path of the printing material web 02 by the at least one first dryer 301 and in particular by the Einwirkbereich the at least one first dryer 301, a larger vertical component than any existing horizontal component. In particular, the transport path of the printing material runs 02 by an area of action of the at least one first dryer 301 preferably to at least 75% and more preferably to at least 95% and even more preferably completely in at least one direction with a greater vertical than optionally present horizontal component. More preferably, the transport path of the printing substrate 02 extends through the at least one first dryer 301 substantially in the vertical direction upwards. This ensures that, in the case of a web break, no part of the printing material web 02 falls from above onto a radiation source 302 and / or comes to rest on a radiation source 302. In this way, inflammation of the printing material web 02 at the hot radiation sources 302 is prevented. Preferably, at least one first support roller 319 is arranged along the transport path in the interior of the at least one first dryer 301, more preferably such that the at least one first support roller 319 is shielded by the printing substrate 02 against the radiation sources 302. The at least one first support roller 319 prevents uncontrolled fluttering of the printing material web 02, which otherwise could occur due to the air flowing out of the at least one ventilation opening 313. A wrap angle of the printing material web 02 around the at least one first support roller 319 is preferably between 1 ° and 45 °, more preferably between 1 ° and 25 °.

In the transport direction of the printing material web 02 after the area of action of the at least one radiation source 302 of the at least one first dryer 301, at least one first cooling device 303 is preferably arranged. The at least one first cooling device 303 preferably has at least one first cooling roller 304 and preferably a first, at least one first cooling roller 304 engagable and / or employee Kühlwalzenpresseur 306 and preferably at least one, at least one first cooling roller 304 engageable and / or employed Anlenkwalze 307; 308 up. The first chill roll press 306 preferably has a lateral surface which consists of an elastic material, for example an elastomer. One of the at least one first cooling roller 304 associated first, designed as a first cooling roller drive motor 311 drive motor 311 and the first Kühlwalzenpresseur 306 are preferred Part of a web tension control, so the web tension regulating arranged and preferably for this purpose at least partially and / or temporarily connected to the higher-level machine control. The at least one first cooling roller 304 preferably represents at least a fourth motor-driven rotational body 304. After leaving the area of action of the first dryer 301, the printing material web 02 first wraps around a first connecting roller 307 and preferably passes through a nip between the first connecting roller 307 and the at least one first cooling roller 304. The printing material web 02 wraps around in its further course, the at least one first cooling roller 304 with a wrap angle of preferably at least 180 ° and more preferably at least 270 °. This means that a, provided as a contact surface between the at least one first cooling roller 304 and the printing substrate 02 partial surface of a lateral surface of the at least one first cooling roller 304 an angle of wrap around the at least one first cooling roller 304, which is preferably at least 180 ° and more preferably at least 270th ° is. This leads to a particularly effective cooling of the printing substrate 02 and thus also enables high dryer performance. In particular, a space requirement of the at least one first cooling device 303 is low, since even with a cooling roller 304, a high transfer of energy can be achieved.

The first cooling roll press 306 forms with the at least one first cooling roll 304 a first cooling roll gap 309, in which the printing material web 02 is arranged and / or which passes through the printing material web 02. In this case, the printing material web 02 is pressed by the cooling roller press 306 to the at least one first cooling roller 304. In its further course, the printing material web 02 preferably wraps around a second connecting roller 308 of the at least one first cooling device 303. The at least one first cooling roller 304 of the at least one first cooling device 303 is preferably designed as a cooling roller 304 through which a coolant flows. This means that at least part of a bale of the at least one first cooling roller 304 flows through the coolant and / or is designed to flow through. Preferably, the coolant is a Coolant, such as water. In a preferred embodiment, a fluid circuit is connected to both the at least one first cooling device 303 and, if present, the second cooling device 333, as well as to the temperature control device of the at least one radiation source 302. The first cooling roll 304 preferably has its own first cooling roll drive motor 311.

Along the transport path of the printing material web 02 after the at least one first cooling device 303, at least one second printing unit 400 is arranged. Preferably, at least one second web edge aligner is arranged along the transport path of the printing material web 02 preferably immediately before the at least one second printing unit 400 and preferably after the at least one first dryer 301 and in particular after the at least one first printing unit 200, which preferably can be controlled manually or driven and / or is designed adjustable. The at least one second printing unit 400 is constructed analogously to the first printing unit 200. Preferably, the at least one second printing unit 400 is constructed substantially and more preferably completely symmetrically with respect to the described components with respect to the at least one first printing unit 200. A corresponding plane of symmetry has a horizontal surface normal lying orthogonal to the axial direction A. In particular, the second printing unit 400 has a second central cylinder 401 or short central cylinder 401, which is wrapped in the printing operation of the printing substrate 02, and also with a wrap angle of preferably at least 180 ° and more preferably at least 270 °. Accordingly, at least 50% and more preferably at least 75% of a cylinder jacket surface of the second central cylinder 401 are in contact with the printing material web 02 when viewed in the circumferential direction in the circumferential direction.

The second central cylinder 401 preferably represents a fifth motor-driven rotary body 401. The second central cylinder 401 of the second pressure unit 400 preferably has a direction of rotation that corresponds to a direction of rotation of the at least a first central cylinder 201 is opposite. Along the transport path of the printing material web 02 in front of the second central cylinder 401 of the second printing unit 400, a second printing substrate cleaning device 402 or web cleaning device 402 is preferably arranged to act on the printing substrate web 02. The second printing substrate cleaning device 402 is preferably designed as a second dedusting device 402. The second printing material cleaning device 402 preferably has at least one brush and / or at least one suction device and / or device for the electrostatic discharge of particles adhering to the printing material web 02. The second printing substrate cleaning device 402 is assigned to at least one second side of the printing material web 02, in particular aligned and / or capable of acting at least on this second side of the printing substrate web 02. If the first printing substrate cleaning device 202 is formed on both sides of the printing material web 02 acting and / or effective, the second Bedruckstoffreinigungsvorrichtung 402 can be omitted.

A roller 403 of the second printing unit 400 formed as a second deflecting roller 403 is arranged parallel to the second central cylinder 401 and spaced therefrom by a second intermediate space 404. The transport path of the printing substrate 02 through the at least one second printing unit 400 extends analogously to the transport path through the at least one first printing unit 200. In particular, the printing substrate 02 preferably wraps around a part of the second deflecting roller 403 and is deflected by the latter in such a way that the transport path of the printing material web 02 in the second intermediate space 404 both tangential to the second guide roller 403 and tangent to the second central cylinder 401 extends. Preferably, at least one cylinder 406 designed as a second impression roller 406 is arranged in the second printing unit 400. The second impression roller 406 preferably has a lateral surface which consists of an elastic material, for example an elastomer. The second impression roller 406 is preferably constructed and arranged analogously to the first impression roller 206, in particular with regard to its mobility and a second impression gap 409. Preferably, a plane containing both a rotation axis 407 of the second central cylinder 401 and a rotation axis of the second impression roller 406 has a surface normal deviating from a horizontal direction by at most 20 °, and more preferably at most 10 °. More preferably, the axis of rotation of the second impression roller 406 is arranged below the axis of rotation of the first central cylinder 201.

The second central cylinder 401 is preferably arranged and constructed analogously to the first central cylinder 201, in particular with respect to a second drive motor 408 of the second central cylinder 401 and a corresponding preferably arranged second rotation angle sensor which measures a rotational angle position of the second drive motor 408 and / or the second central cylinder 401 itself and / or capable of measuring and transmitting to the higher-level machine control and / or capable of transmitting. By the second guide roller 403 and / or preferably by the second impression roller 406, the printing substrate 02 is applied flat and preferably in a unique and known position to the second central cylinder 401. In particular, the second drive motor 408 is preferably designed as an electric motor 408 and more preferably designed as a direct drive 408 and / or individual drive 408 of the second central cylinder 401. The second drive motor 408 of the second central cylinder 401 is preferably designed as a synchronous motor 408.

The second rotation angle sensor is preferably also designed, for example, as a rotary encoder or absolute value encoder, so that a rotational position of the second drive motor 408 and / or preferably a rotational position of the second central cylinder 401 can be determined absolutely by means of the higher-level machine control. The second drive motor 408 of the second central cylinder 401 is preferably arranged on a first axial end of the second central cylinder 401, referred to the rotation axis 407 of the second central cylinder 401, while the rotation angle sensor preferably is located on a second, related to the rotation axis 407 of the second central cylinder 401 axial end of the second central cylinder 401 is arranged. The rotation angle sensor preferably also has a particularly high resolution, for example a resolution of at least 3,000 (three thousand) and preferably at least 10,000 (ten thousand) increments per full angle (360 °) and more preferably at least 100,000 (one hundred thousand) increments per full angle (360 °). The rotation angle sensor preferably has a high temporal sampling frequency.

Additionally or alternatively, the second drive motor 408 of the second central cylinder 401 is also connected in such a circuit with the machine control that the machine control at any given time to a rotational position of the second drive motor 408 due to predetermined data from the Maschinensteuerung'an the second drive motor 408 of the second central cylinder 401 about the rotational position of the second drive motor 408 and thus at the same time the rotational position of the second central cylinder 401 is informed. In particular, a region of the machine control which prescribes the rotational angle position or rotational position of the second central cylinder 401 and / or of the second drive motor 401 is connected directly, in particular without an interposed sensor, to a region of the machine control system controlling the at least one print head 412 of the second printing unit 400.

Within the second printing unit 400, at least a second printing unit 411 designed as an ink jet printing unit 411 or ink jet printing unit 411 is arranged in the direction of rotation of the second central cylinder 401 and thus along the transport path of the printing material web 02 after the second impression roller 406 aligned with the second central cylinder 401 , The at least one second printing unit 411 of the at least one second printing unit 400 is preferably identical to the at least one first printing group 211 of the at least one first printing unit 200, in particular with respect to at least one nozzle bar 413, at least one printhead 412 formed as an inkjet printhead 412 and arranged in double rows , the execution and resolution of the printing process, the arrangement, alignment and Control of the nozzles and the mobility and adjustability of the at least one nozzle bar 413 and the at least one print head 412 means of at least one adjustment mechanism with a corresponding electric motor. An analogous protective cover and / or cleaning device is also preferably arranged. Also, a correct alignment of the printheads 412 of the at least one second printing unit 400 is preferably checked by at least one sensor detecting a printed image and the machine controller evaluating this image. This at least one sensor is preferably at least one second printed image sensor which is designed analogously to the at least one first printed image sensor. Preferably, the at least one second printing unit 411 is designed as a four-color printing unit 411.

As described, the second drive motor 408 of the second central cylinder 401 is preferably connected to the machine control in such a manner that the machine control at any given time via the desired data preset by the machine control to the second drive motor 408 of the second central cylinder 401 about a rotational position of the second drive motor 408 Rotary position of the second drive motor 408 and thus at the same time the rotational position of the second central cylinder 401 is informed. An ejection of ink droplets from the at least one nozzle of the at least one print head 412 of the second printing unit 400 then takes place as a function of the predetermined by the machine control rotational position of the second drive motor 408. In this case, the predetermined by the machine control to the second drive motor 408 target data of Rotary position of the second drive motor 408 preferably in real time in a calculation of data for controlling the nozzles of the at least one printhead 412 included. A comparison with actual data of the rotational position of the second drive motor 408 is preferably not necessary and preferably does not take place.

The printing machine 01 preferably has at least one register sensor which has a layer of at least one and preferably each first, of which at least one first Recorded printing unit 211 on the first page of the substrate web 02 applied print image and sends to the higher-level machine control. As the at least one printed image, which is detected by the register sensor, for example, a barcode can be used, which is applied for this purpose in the first printing unit 200 to the printing substrate 02. Such a barcode may contain information about the content and / or dimensions of a printed image applied by the first printing unit 200 to the printing substrate 02. This ensures registration, even if, for example, a section length, that is to say a length of applied printed images, is changed in the direction of the transport path of the printing material web 02. The higher-level machine control calculates from the position of this print image the ideal period for driving the nozzles of the printheads 412 of the at least one second printing unit 411. In this way, a register-oriented alignment of the first print image on the first side of the substrate web 02 and second print image on the second page reaches the printing substrate 02.

The at least one register sensor, based on the transport path of the printing material web 02, is preferably arranged closer to the second central cylinder 401 than to the first central cylinder 201. In this way, as many influences as possible can be taken into account, of the printing material web 02 along its transport path between the at least one first printing unit 211 and the at least one second printing unit 411 is exposed, for example, expansions of the printing substrate 02 along the transport path. Preferably, the at least one register sensor is designed as at least one surface camera. Such an area camera preferably has a sufficiently high resolution to detect register errors and / or registration errors, for example, a resolution greater than 0.05 mm. Preferably, the at least one register sensor is identical to the at least one first print image sensor, with which the control of all in the circumferential direction of the first central cylinder 201 successive and / or acting print heads 212th and / or double rows of printheads 212 of the first printing unit 211 is monitored and regulated.

With regard to the transport path of the printing material web 02, at least one second dryer 331 is arranged after the at least one second printing unit 400. After the printing material web 02 has passed the at least one second printing unit 400, the printing material web 02 is transported further along its transport path and fed to the at least one second dryer 331 of the at least one dryer unit 300. The at least one second dryer 331 is preferably constructed analogously to the at least one first dryer 301. The at least one first dryer 301 and the at least one second dryer 331 are components of the at least one dryer unit 300. Preferably, an area of action of the at least one first dryer 301 relative to the printing substrate 02 points away from the at least one second dryer 331 and points to the printing material web 02 related Einwirkbereich the at least one second dryer 331 of the at least one first dryer 301 away. Preferably, between the at least one first dryer 301 and the at least one second dryer 331 passes through a section of the transport path of the printing material web 02 passing the at least one first dryer 301 and the at least one second dryer 331.

Preferably, the second side of the printing material web 02 printed by the at least one second printing unit 400 is connected between a last contact point of the printing material web 02 with the second central cylinder 401 of the at least one second printing unit 400 and an area of action of the at least one second dryer 301 with no component of the web. Printing machine 01 in contact. Preferably, the first printed by the first printing unit 200, already dried and not printed by the second printing unit 400, the second central cylinder 401 of at least one second printing unit 400 contacting side of the printing substrate 02 between the last contact point of the printing substrate 02 with the second central cylinder 401st at least a second printing unit 400 and the area of action of the at least one second dryer 331 with at least one deflecting roller 414 of the at least one second printing unit 400 and / or with at least one deflecting roller 342 of the at least one second dryer 331 in contact. At least one guide roller 414 of the second printing unit 400 is preferably arranged, which deflects the printing material web 02 in a direction that has been displaced in a direction with a greater vertical, preferably downwardly oriented component than optionally present horizontal component from the second central cylinder 401 has a larger horizontal component than optionally present vertical component. In this case, only the first side of the printing material web 02 not printed by the second printing unit 400 is in contact with this at least one deflection roller 414 of the second printing unit 400.

This at least one deflecting roller 414 is preferably designed as a fifth measuring device 414, in particular a fifth measuring roller 414. This will be discussed in more detail below. Preferably, at least one deflection roller 342 of the at least one second dryer 331 is arranged, which the printing material 02 from this direction or another direction with greater horizontal component than any existing vertical component in a direction with greater vertical, preferably upwardly oriented component than any existing horizontal Component deflects. In this case, only the first side of the printing material web 02 not printed by the second printing unit 400 is in contact with the at least one deflection roller 342 of the at least one second dryer 331.

The at least one second dryer 331 is also preferably designed as an infrared radiation dryer 331. The structure of the at least one second dryer 331 is similar to the construction of the at least one first dryer 301, in particular with regard to a design as a flow dryer 331 and / or radiation dryer 331 and / or hot air dryer 331 and / or UV radiation dryer 331. In particular, the at least one second dryer 331 preferably has at least one second cooling roller 334, which more preferably represents at least one sixth motor-driven rotary body 334. Preferably, the second cooling roller 334 is driven and / or driven by means of a second cooling roller drive 341. Preferably, the at least one second dryer 331 is constructed essentially and more preferably completely symmetrically relative to the at least one first dryer 301 with respect to the described components. Preferably, the at least one second dryer 331 likewise has a ventilation device, which is designed analogously to the ventilation device of the at least one first dryer 301 and / or is coupled or identical to it.

The at least one second dryer 331 is preferably part of the same dryer unit 300 as the at least one first dryer 301 and is further preferably arranged in a same housing 329. With regard to a spatial arrangement, the dryer unit 300 and thus preferably the at least one first dryer 301 and the at least one second dryer 331 are preferably arranged between the at least one first printing unit 200 and the at least one second printing unit 400. This means that preferably a straight line connecting the rotation axis 207 of the at least one first central cylinder 201 of the at least one first pressure unit 200 with a rotation axis 407 of the at least one second central cylinder 401 of the second pressure unit 400, the at least one dryer unit 300 is arranged intersecting.

Along the transport path of the printing substrate 02 after the at least one second dryer 331 at least one pullout roller 501 is arranged. The at least one pull-out roller 501 preferably has its own drive motor 504 designed as a pull-out roller drive 504. The at least one pull-out roller 504 preferably represents at least a seventh motor-driven rotary body 504. The at least one pull-out roller 501 preferably forms one together with an extension press 502 set and / or adjustable to the at least one pull-out roller 501 Pull-out gap 503, in which the printing material web 02 is clamped and through which the printing material 02 is conveyed. However, the at least one pull-out roller 501 can also be designed as a suction roller. The pull-out press 502 preferably has a lateral surface which consists of an elastic material, for example an elastomer. The pull-out gap 503 is preferably used to control a web tension and / or a transport of the printing material web 02.

Regarding the transport path of the printing substrate 02 before and / or after the extraction roller 501, but in particular along the transport path of the printing material 02 after the at least one first dryer 301, preferably at least one Wiederbefeuchtungseinrichtung is arranged, preferably a too large moisture loss of the printing substrate 02 due to Treatment by the dryer unit 300 compensates. The at least one remoistening device preferably has at least one first electrode, which preferably electrically charges the printing material web 02. The at least one remoistening device preferably has at least one second electrode, which is oppositely charged to the at least one first electrode and at the or in the immediate vicinity of which water is preferably released in the form of preferably charged water droplets and / or water vapor. The at least one first electrode and / or the charged printing material 02 on the one hand and the at least one second electrode on the other hand together form a capacitor in the electric field, the preferably charged water droplets and / or water vapor are moved to the printing material 02 and moisten them when reaching , This prevents that the printing material web 02 is unnecessarily brittle, in particular, if it is processed further.

Along the transport path of the printing substrate 02 after the pullout nip 503 and / or after the rewet device at least one post-processing device 500 is arranged, which is preferably designed as a folding device 500 and / or a sheet cutter 500 and / or a plan display 500 or as Winding 500 is formed. In this and / or by this post-processing device 500, the printing substrate 02 is preferably folded and / or cut and / or stapled and / or sorted and / or enveloped and / or shipped and / or wound up.

By way of example, a preferred post-processing device 500 will be described. The printing material web 02 is preferably guided around in the post-processing device 500 by at least one turning bar 506 or guide roll 506, which is oriented at an angle of 40 ° to 50 ° to a transport direction of the printing material web 02. Preferably, at least one former 507 is arranged, which provides the printing material web 02, for example, preferably with a longitudinal fold. Alternatively, a transport path of the printing substrate 02 can also bypass the at least one former 507. Following the transport path of the printing material 02 preferably passes over at least one guide roller 508 and / or by at least a pair of conveyor belts 509. Preferably, the printing substrate 02 is cut by means of a cross-cutting device 511 into sections and these sections by means of a folding blade 512 and a Falzwalzenpaars 513 with provided a first transverse fold. Subsequently, the sections are preferably optionally provided and / or stapled and / or trimmed by means of a further folding blade 514, for example a folding blade 514 with an optionally second longitudinal fold. Further or alternative treatments are also possible. In this way, printed products can be produced which have, for example, optionally eight, twelve or sixteen pages.

The transport path of the printing substrate 02 through the printing press 01 can be divided into several sections. Along the transport path of the printing substrate 02 through the roller printing machine 01 are preferably a plurality of contact points between the printing substrate 02 and motor-driven rotary bodies 103; 118; 201; 304; 401; 334; 501 arranged. Preferably, in each case two such contact points between the printing substrate 02 and motor-driven rotational bodies 103 limit; 118; 201; 304; 401; 334; 501 each section of the transport path of the printing substrate 02 through the printing press.

A first such contact point is preferably determined by the Rollenabspulvorrichtung 100, wherein preferably the roller holding device 103 is the corresponding first motor-driven rotary body 103 and is driven by the drive motor 104 of the Rollenabspulvorrichtung 100. A second such contact point is preferably defined by the feed gap 119, wherein preferably the draw roller 118 is the corresponding second motor-driven rotary body 118 and is driven by the Zugantriebsmotor 146. A third such contact point is preferably defined by the at least one first central cylinder 201, wherein preferably the at least one first central cylinder 201 represents the corresponding third motor-driven rotary body 201 and is driven by its first drive motor 208. A fourth such pad is preferably defined by the first cooling nip 309, and preferably, the first cooling roller 304 is the corresponding fourth motor driven rotating body 304 and driven by the first cooling roller driving motor 311. A fifth such contact point is preferably determined by the at least one second central cylinder 401, wherein preferably the at least one second central cylinder 401 represents the corresponding fifth motor-driven rotary body 401 and is driven by its drive motor 408. A sixth such pad is preferably defined by the second cooling nip 339, and preferably, the second cooling roller 334 is the corresponding sixth motor driven rotating body 334 and driven by the drive motor 341 configured as the second cooling roller driving motor 341. A seventh such contact point is preferably determined by the pull-out gap 503, wherein preferably the pull-out roller 501 represents the corresponding seventh motor-driven rotary body 501 and is driven by the pull-out roller drive 504.

A first section of the transport path of the printing material web 02 is preferred between the first contact point between the printing substrate 02 and a motor-driven rotary body 103 and the second contact point between the printing substrate 02 and a motor-driven rotary body 118. A second section of the transport path of the printing substrate 02 preferably extends between the second contact point between the printing substrate 02 and a motor-driven rotary body 118th and the third contact point between the printing substrate 02 and a motor-driven rotary body 201. A third section of the transport path of the printing substrate 02 preferably extends between the third contact point between the printing substrate 02 and a motor-driven rotary body 201 and the fourth contact point between the printing substrate 02 and a motor-driven rotary body 304 A fourth section of the transport path of the printing material web 02 preferably runs between the fourth contact point between the printing material web 02 and a motor-driven rotary body 304 and the fifth contact point between the printing substrate 02 and a motor-driven rotary body 401. A fifth section of the transport path of the printing substrate 02 preferably extends between the fifth contact point between the printing substrate 02 and a motor-driven rotary body 401 and the sixth contact point between the substrate web 02 and a motor-driven rotary body 334. A sixth section of the transport path of the printing material web 02 preferably extends between the sixth contact point between the printing material web 02 and a motor-driven rotary body 334 and the seventh contact point between the printing substrate 02 and a motor-driven rotary body 501. Preferably, each section of the transport path the printing substrate 02 in each case at least one measuring device 141; 216; 214; 416; 414; 343, more preferably a measuring roller 141; 216; 214; 416; 414; 343 assigned. Each of these measuring devices 141; 216; 214; 416; 414; 343, in particular measuring rollers 141; 216; 214; 416; 414; 343 serves to detect the web tension in the corresponding section of the transport path of the printing material web 02 to which the respective measuring roller is assigned.

Preferably, the first section of the transport path, starting from the printing material roll 101 connected to the roll holding device 103 in the roll-off device 100, preferably passes first through the dancer roll 113 and through the web edge aligner 114 and preferably around the first measuring roll 141 formed as draw-in measuring roll 141 and into the drawing-in gap 119. Preferably, a regulation of the web tension in this first section takes place in that the at least one drive motor 104 of the roll holding device 103 is controlled in its rotational speed so that the dancer lever 121 supporting the dancer roll 113 remains in a desired position, for example a middle position. Alternatively or additionally, the regulation of the web tension in this first section takes place in that the at least one drive motor 104 of the roll holding device 103 is controlled in its rotational speed such that a value measured by the first measuring device 141, which is preferably the first measuring roll 141, in particular pull-in measuring roll 141 Web tension corresponds to a target value of the web tension.

In the second section of the transport path, at least one second measuring device 216 is preferably arranged, which preferably serves to measure the web tension in this second section. The second section of the transport path preferably extends from the intake nip 119 around at least one second measuring roller 216 of the first printing unit 200 and around the first deflecting roller 203 and at least partially around the at least one first central cylinder 201 and more preferably into the first impression nip 209 the at least one first printing unit 200. Preferably, the transport path starting from the intake nip 119 and preferably at least the second measuring roller 216 of the first printing unit 200 initially with greater horizontal than possibly present vertical component over the at least one first printing unit 200 and then with a greater vertical pointing downwards than optionally present horizontal component up to a height below the at least one first central cylinder 201 and then with larger horizontally as a possibly existing vertical component below the axis of rotation 207 of the at least one first central cylinder 201 and then around the first guide roller 203 to the cylinder surface of the at least one first central cylinder 201 and preferably in the first impression gap 209. Alternatively, the second measuring device 216 along the Transport way be arranged further back. Then, the transport path, starting from the intake gap 119, initially extends with a greater horizontal than possibly present vertical component over the at least one first printing unit 200 and then with a greater vertical downward pointing than optionally present horizontal component to a height below the at least one first central cylinder 201 and then with a larger horizontal than optionally present vertical component under the rotational axis 207 of the at least one first central cylinder 201 and then around the second measuring roller 216 and the first guide roller 203 to the cylinder surface of the at least one first central cylinder 201 and preferably into the first impression gap 209 ,

In a first preferred embodiment, regulation of the web tension in this second section takes place in that the web tension is measured by means of the second measuring device 216, in particular the second measuring roller 216 and a rotational speed of the tension roller 118 is regulated by means of the traction drive motor 146 such that the web tension is applied the second measuring device 216, in particular second measuring roller 216 assumes a predetermined value. In a second embodiment, regulation of the web tension in this second section takes place in that the web tension is measured by means of the second measuring device 216, in particular the second measuring roller 216 and a rotational speed of the first central cylinder 201 is regulated by means of its drive motor 208 such that the web tension on the second measuring device 216, in particular second measuring roller 216 assumes the predetermined value.

In the third section of the transport path, at least one third measuring device 214 is preferably arranged, which preferably serves to measure the web tension in this third section. This third measuring device 214 is preferably designed as a third measuring roller 214. The third section of the transport path preferably extends from the at least one first central cylinder 201 and / or the first impression gap 209 through the at least one first dryer 301 into the first cooling nip 309. The transport path preferably proceeds from the at least one first central cylinder 201 and / or or the first impression gap 209 through the at least one first printing unit 211 and around the at least one deflection roller 214 of the first printing unit 200 formed as the third measuring roller 214 and around the at least one deflection roller 312 of the at least one first dryer 301 and through the at least one first dryer 301 and in the first cooling roll gap 309. In a first preferred embodiment, a regulation of the web tension in this third section takes place in that by means of the third measuring device 214, in particular third measuring whale ze 214, the web tension is measured and a rotational speed of the at least one first central cylinder 201 is controlled by the drive motor 208 so that the web tension at the third measuring device 214, in particular third measuring roller 214 assumes a predetermined value. In a second embodiment, a regulation of the web tension in this third section takes place in that the web tension is measured by means of the third measuring device 214, in particular third measuring roller 214 and a rotational speed of the first cooling roller 303 is regulated by means of its first cooling roller drive motor 311 such that the web tension the third measuring device 214, in particular third measuring roller 214 assumes a predetermined value.

In the fourth section of the transport path, at least one fourth measuring device 416 is preferably arranged, which preferably measures the web tension in this fourth section is used. This fourth measuring device 416 is preferably designed as a fourth measuring roller 416. The fourth section of the transport path preferably extends from the first cooling nip 309 around the at least one fourth measuring roller 416 and around the second deflecting roller 403 and at least partially around the second central cylinder 401 and preferably into the second impression nip 409 of the at least one second printing unit 400. Preferably, the transport path, starting from the first cooling-nip 309, initially extends over the at least one first dryer 301 and the at least one second dryer 331 with a greater horizontal than possibly present vertical component, and then with a greater vertical downward pointing than optionally present horizontal component to a height below the second central cylinder 401 and then with a greater horizontal than optionally present vertical component below the axis of rotation 407 of the second central cylinder 401 therethrough and then to the fourth measuring roller 416 and In a first, preferred embodiment, regulation of the web tension in this fourth section takes place by means of the fourth measuring device 416, in particular the fourth measuring roller 416, the web tension is measured and a rotational speed of the first cooling roller 303 is controlled by means of the first cooling roller drive motor 311 so that the web tension at the fourth measuring device 416, in particular fourth measuring roller 416 assumes a predetermined value. In a second embodiment, regulation of the web tension in this fourth section preferably takes place in that the web tension is measured by means of the fourth measuring device 416, in particular fourth measuring roller 416, and a rotational speed of the second central cylinder 401 is regulated by means of its drive motor 408 such that the web tension is applied the fourth measuring device 416, in particular fourth measuring roller 416 assumes a predetermined value.

In the fifth section of the transport path is preferably at least a fifth Measuring device 414 is arranged, which preferably serves to measure the web tension in this fifth section. This fifth measuring device 414 is preferably designed as a fifth measuring roller 414. The fifth section of the transport path preferably runs from the at least one second central cylinder 401 and / or the second impression nip 409 through the at least one second drier 331 into a second cooling nip 339. The transport path preferably proceeds from the at least one second central cylinder 401 and / or. or the second impression gap 409 through the at least one second printing unit 411 and around the at least one deflection roller 414 of the second printing unit 400 formed as the fifth measuring roller 414 and around the at least one deflection roller 342 of the at least one second dryer 331 and through the at least one second dryer 331 and a third chuck roll 337 of a second chiller 333 and a second chill roll 334 into the second chill roll gap 339 formed by the second chill roll 334 and the second chill roll press 336. Preferably, the second cooling roller 334 has its own second cooling roller drive motor 341. In a first preferred embodiment, regulation of the web tension in this fifth section takes place in that the web tension is measured by means of the fifth measuring device 414, in particular the fifth measuring roller 414, and a rotational speed of the second central cylinder 401 is regulated by means of its drive motor 408 such that the web tension at the fifth measuring device 414, in particular fifth measuring roller 414 assumes a predetermined value. In a second embodiment, a regulation of the web tension in this fifth section takes place in that the web tension is measured by means of the fifth measuring device 414, in particular fifth measuring roller 414, and a rotational speed of the second cooling roller 334 is regulated by means of its second cooling roller drive motor 341 such that the web tension is applied the fifth measuring device 414, in particular fifth measuring roller 414 assumes a predetermined value.

In the sixth section of the transport path is preferably at least a sixth Measuring device 343 is arranged, which preferably serves to measure the web tension in this sixth section. This sixth measuring device 343 is preferably designed as the sixth measuring roller 343. The sixth section of the transport path extends from the second cooling roll gap 339 between the at least one first dryer 301 and the at least one second dryer 331 and around at least one sixth measuring roll 343 through the pull-out gap 503. In a first, preferred embodiment, a control of Web tension in this sixth section characterized in that by means of the sixth measuring device 343, in particular the sixth measuring roller 343, the web tension is measured and a rotational speed of the second cooling roller 334 is controlled by means of the second cooling roller drive motor 341 so that the web tension at the sixth measuring device 343, in particular sixth measuring roller 343 assumes a predetermined value. In a second embodiment, a regulation of the web tension in this sixth section takes place in that the web tension is measured by means of the sixth measuring device 343, in particular the sixth measuring roller 343, and a rotational speed of the draw roller 501 is regulated by means of its pull-out roller drive 504 such that the web tension at the sixth Measuring device 343, in particular sixth measuring roller 343 remains constant.

Preferably, all measuring devices 141; 216; 214; 416; 414; 343, in particular measuring roller 141; 216; 214; 416; 414; 343 and / or other, the web tension measuring measuring devices and all drive motors 104; 146; 208; 311; 408; 341; 504 connected to the higher-level machine control, more preferably with an electronic Antriebsleitachse. The higher-level machine control preferably influences several and more preferably all drive motors 104; 146; 208; 311; 408; 341; 504 with respect to the transport path of the printing substrate 02 preceding and / or subsequent motor-driven rotary bodies 103; 118; 201; 304; 401; 334; 501, as soon as due to a measurement of the web tension at least one such drive motor 104; 146; 208; 311; 408; 341; 504 is influenced. This results a particularly fast adaptation along the entire transport path of the printing material web 02 to changes in the web tension. In another embodiment, the web tension is regulated independently in the individual sections. This then indirectly results in changes in the web tension in adjacent sections, which are then automatically compensated. At least one drive motor 104; 146; 208; 311; 408; 341; 504 and preferably exactly one drive motor 104; 146; 208; 311; 408; 341; 504 of a motor driven rotary body 103; 118; 201; 304; 401; 334; 501 is preferred as a leading drive motor 104; 146; 208; 311; 408; 341; 504 trained. Preferably, a rotational speed of the leading drive motor 104; 146; 208; 311; 408; 341; 504 predetermined, more preferably independent of measurements of the measuring rollers 141; 216; 214; 416; 414; 343. More preferably, the pull-out roller drive 504 is the leading drive motor 504.

In a simplified embodiment, the first cooling nip 309 and / or the second cooling nip 339 are omitted so that said third portion and said fourth portion form a common portion and / or said fifth portion and said sixth portion form a common portion. Additionally and / or alternatively omitted in the or another simplified embodiment of the first and / or the second impression roller 206; 406. This is possible, for example, if it is ensured in another way that there is no slip between the printing material web 02 and a central cylinder 201; 401 occurs, for example, by sufficiently high friction.

In the following, an embodiment of the rotary printing press 01 is described, which is particularly suitable for textile printing. In this case, a textile web 02, that is to say a textile printing material web 02, is preferably printed. In a corresponding embodiment, however, it is also possible to produce a rotary printing machine for comparatively short textile sections, for example textile sheets. The rotary printing machine 01 for the Textile printing, with the exception of features described below, preferably has the same structure as described above, at least insofar as this does not lead to any contradictions.

In order to be able to print substrate 02 in register, it is important to place it in a unique position relative to corresponding print heads 212; 412 and / or printing units 211; To bring 411. Textile substrate 02 and in particular a textile web 02 must be positioned precisely not only in his / her orientation, but also in his / her form. Preferably, therefore, at least one driver 217 in the radial direction over the cylindrical surface of the bale of the at least one first central cylinder 201 protruding, more preferably at least 0.1 mm, more preferably at least 0.5 mm and even more preferably at least 1 mm far over the Cylinder surface of the bale of the at least one first central cylinder 201 outstanding. This at least one driver 217 is preferably used to be able to arrange the textile web 02 exactly defined both in their shape and in their position. The at least one driver 217 causes each specific point of the textile web 02, which comes into contact with the at least one driver 217, as long as with the at least one driver 217 remains in contact until it is selectively released again from the at least one driver 217. In the case of the at least one driver 217, which is arranged protruding in the radial direction over the cylinder jacket surface of the bale of the at least one first central cylinder 201, a contact between the textile web 02 and the at least one driver 217 results from the textile web 02 contacting the cylinder jacket surface of the bale the contact is maintained as long as the specific point together with the at least one driver 217 rotates along the transport path of the textile web 02 about the axis of rotation 207 of the at least one first central cylinder 201. The contact is terminated by the fact that the particular point of the textile web 02 is released from the cylindrical surface of the bale of the at least one first central cylinder 201, for example in tangential Direction and / or to be guided in the connection to the guide roller 214 of the first printing unit 200. The at least one driver 217 penetrates at least partially into the textile substrate 02. In a constellation, the at least one driver 217 penetrates the textile substrate 02 completely. Carrier 217, which are arranged in the, relative to the axis of rotation 207 of the at least one first central cylinder 201, axial direction A of print heads 212 are spaced apart, have a radial dimension which is smaller than a radial distance of the print heads 212 from the lateral surface bale of the at least one first central cylinder 201. In this way it is ensured that there is no risk of a collision of a driver 217 with a print head 212.

More preferably, a plurality of drivers 217 in the radial direction over the cylinder surface of the bale of the at least one first central cylinder 201 are outstandingly arranged. The more drivers 217 are arranged, the more points of the textile web 02 are simultaneously determined with respect to their position on the cylinder jacket surface of the bale of the at least one first central cylinder 201. This increases on the one hand the precision of the position of the textile web 02, which, as described above and analogous to the printing of, for example, paper, benefits the register. On the other hand, however, the shape of the textile web 02 is kept stable thereby, at least during its contact with the cylinder jacket surface of the bale of the at least one first central cylinder 201. Preferably, at least two, more preferably at least five, even more preferably at least twenty-five and even more preferably at least one hundred driver 217 in the axial direction A with respect to the axis of rotation 207 of the at least one first central cylinder 201 spaced from each other and in the radial direction over the cylindrical surface of a bale of at least a first central cylinder 201 outstanding. Preferably, at least two, more preferably at least five, even more preferably at least twenty-five, and even more preferably at least one hundred drivers 217 in the circumferential direction with respect to the bale of the at least one first central cylinder 201 seen spaced apart and arranged in the radial direction over the cylinder surface of a bale of the at least one first central cylinder 201 outstanding. Preferably, in the circumferential direction adjacent drivers 217 with respect to the circumferential direction about the rotation axis 207 of the at least one first central cylinder 201 are arranged in pairs at an angle of at most 175 °, more preferably at most 120 ° and even more preferably at most 90 ° to each other. This ensures that always at least one driver 217 is in contact with the textile substrate 02. In each case, a plurality of drivers 217 are preferably arranged along a plurality of carriers 217 extending in the circumferential direction around the lateral surface of the bale of the at least one first central cylinder 201 and / or a plurality of carriers 217 are preferably distributed uniformly over a surface which is at least 45% of Mantle surface of the bale of the at least one first central cylinder 201 covered.

In a preferred embodiment, for example, drivers 217 are arranged in two edge regions at two axial ends of the bale of the at least one first central cylinder 201. Each of these edge regions preferably extends in the axial direction A in each case from an edge of the bale of the at least one first central cylinder 201 in the axial direction A over a length which is preferably at most 10% and more preferably at most 5% of the length of the bale of the at least one first central cylinder 201 corresponds in this axial direction A. In this way, the textile substrate 02 is held on two sides and the drivers 217 do not affect a central region of the printing material 02. In particular, then preferably a surface of the bale of the at least one first central cylinder 201 free of drivers 217, which surface is in the circumferential direction extends over the entire bale of the at least one first central cylinder 201 and extends in the axial direction A preferably over at least 75% and more preferably at least 90% of the length of the bale of the at least one first central cylinder 201. This can be advantageous, for example, if sensitive textiles are to be printed by the drivers 217 could be damaged. If damage then occurs, these are limited to a removable edge region of the textile substrate 02.

In order to achieve a contact that is as stable as possible between the printing substrate 02 and the cylinder jacket surface of the bale of the at least one first central cylinder 201, the at least one driver 217 is preferably in positive contact with the printing material 02 and / or can be brought into contact with the printing material 02 in a form-fitting manner. In particular, the printing material 02 is thereby arranged in a torque-transmitting and / or transferable manner on the at least one first central cylinder 201. The at least one driver 217 is preferably configured as a stationary carrier 217 in the printing operation relative to the bale of the at least one first central cylinder 201. The at least one driver 217 is preferably designed as at least one needle 217 or at least one hook 217. A needle 217 is preferably a driver 217, whose cross-sectional area with increasing distance from the axis of rotation 207 of the at least one first central cylinder 201 remains the same or decreases, for example in the form of a cylinder, a cone, a truncated cone, a pyramid or the like. A hook 217 is preferably a driver 217, which has at least one surface whose surface normal has at least one component on the axis of rotation 207 of the at least one first central cylinder 201. If the at least one driver 217 is designed as at least one hook 217, then it can interact with the textile web 02 in the manner of a hook-and-loop fastener. In this case, the at least one driver 217 designed as at least one hook 217 acts like a hook-and-loop hook-and-loop fastener and the textile web 02 itself acts like a hook-and-loop tape with loops.

The at least one driver 217 is rigidly arranged on the bale of the at least one first central cylinder 201 in one embodiment. This means that in a regular operation, and in particular in a printing operation, a detachment of the at least one driver 217 from the bale of the at least one first central cylinder 201 is not provided. A connection between the at least one driver 217 and the bale of the at least one first central cylinder 201 is screwed and / or glued and / or welded and / or soldered and / or pressed and / or clamped, for example.

The at least one driver 217 is preferably rigidly arranged on at least one driver carrier 219, which is detachably mounted on the bale of the at least one first central cylinder 201. This means that in a regular operation, and in particular in a printing operation, a removal of the at least one driver 217 from the at least one driver carrier 219 is not provided. A connection between the at least one driver 217 and the at least one driver carrier 219 is for example screwed and / or glued and / or welded and / or soldered and / or pressed and / or clamped. Removal of the at least one driver carrier 219 from the bale of the at least one first central cylinder 201 is preferably operationally provided, for example to convert the rotary printing machine 01 from a textile substrate 02 to a substrate 02 made of paper or to use different drivers 217 for different textile substrates 02 can.

In a first embodiment of a driver carrier 219, the at least one first central cylinder 201 has at least one channel 221 which extends in the axial direction A with respect to the at least one first central cylinder 201 and in which the at least one driver carrier 219 is partially arranged and / or arranged and / or. or releasably fixed and / or releasably fixable. The at least one driver carrier 219 has, for example, a dimensionally stable carrier plate, in particular a metal plate, which preferably has suspension legs at two, for example, opposite ends. These suspension legs can then be inserted into the at least one channel 221 and suspended there and / or fastened by means of suitable devices. It may be a single channel 221 arranged in the both ends of carrier plates 219 formed as full-circumferential plates are inserted. However, it is also possible for a plurality of, for example, two channels 221 to be arranged, in which case different ends of each driver carrier 219 are inserted into different channels 221. Depending on the number of channels 221, the at least one driver carrier 219 is designed as at least one driver carrier 219, which surrounds the bale of the at least one first central cylinder 201 in the circumferential direction, preferably at least 45% and more preferably at least 95%. The at least one channel 221 has no negative effects on the printing result due to the contactless printing process by means of inkjet printheads 212. It can even be printed in the region of the channel 221, so that an endless, ie interruption-free printing of the textile substrate 02 is possible.

In a second embodiment of a driver carrier 219, the driver carrier 219 and / or the bale of the at least one first central cylinder 201 is at least partially magnetic. A fixation of the Mitnehmerträgers 219 on the bale of the at least one first central cylinder 201 is then at least partially via magnetic attraction forces. In this case, no channel 221 of the at least one first central cylinder 201 is necessary and preferably also not arranged. With regard to further features, in particular a distribution of drivers 217 on the driver carrier 219, the second embodiment preferably has no differences from other embodiments. In a third embodiment of a driver carrier 219 of the driver carrier 219 is formed as a sleeve which is in the axial direction A on the at least one first central cylinder 201 pushed and / or postponed. In this case, no channel 221 of the at least one first central cylinder 201 is necessary and preferably also not arranged. With regard to further features, in particular the distribution of drivers 217 on the driver carrier 219, the third embodiment also preferably has no differences from other embodiments.

Embodiments of such carrier carrier 219 are possible in different sizes. In one embodiment of a first size, the at least one driver carrier 219 is designed as at least one band that has a greater extent in the circumferential direction of the bale of the at least one first central cylinder 201 than in the radial direction and / or in the axial direction A with respect to the at least one first Central cylinder 201. In one arrangement, for example, two such bands are arranged at each one axial end of the bale of the at least one first central cylinder 201. In this way, the textile substrate 02 is held on two sides and the drivers 217 do not affect a central region of the printing material 02. In particular, then preferably a surface of the bale of the at least one first central cylinder 201 free of drivers 217, which surface is in the circumferential direction extends over the entire bale of the at least one first central cylinder 201 and extends in the axial direction A preferably over at least 75% and more preferably at least 90% of the length of the bale of the at least one first central cylinder 201. This can be advantageous, for example, if sensitive textiles are to be printed, which could be damaged by the drivers 217. In one embodiment of a second size, the at least one driver carrier 219 is designed as at least one flat driver carrier 219 which extends over at least 45% and more preferably at least 95% of a circumference of the bale of the at least one first central cylinder 201 and which extends in the axial direction A the at least one first central cylinder 201 extends over at least 40% and more preferably at least 90% of the bale of the at least one first central cylinder 201. By a two-dimensional carrier carrier 219 a flat and therefore preferably uniform distribution of carriers over the bale of the at least one first central cylinder 201 is possible.

In one embodiment, at least one reference to the at least one first central cylinder 201 is clamped in place of the at least one driver carrier 219 or in addition to the at least one driver carrier 219. The surface of this cover preferably has together with the textile web 02, in particular on its radially outwardly directed surface at least partially a material which has a friction coefficient of at least 0.25 and preferably at least 0.35 with the textile substrate 02. Preferably, this, the radially outwardly facing surface of the reference at least partially forming material is an elastic material, such as an elastomer. This increases the friction between the textile substrate 02 and the at least one first central cylinder 201 and thereby improves the safe and register-oriented transport of the textile substrate 02. The at least one reference is fixed on the lateral surface of the bale of the at least one central cylinder 201, for example, by opposing , Preferably designed as Einhängeschenkel ends of the at least one reference in the at least one channel 221 arranged and / or fixed or by the reference and / or the bale of the at least one first central cylinder 201 is at least partially magnetic and / or by the reference the shape of a Sleeve which is in the axial direction A on the at least one first central cylinder 201 pushed and / or postponed. Preferably, the at least one cover is constructed in the manner of a blanket known from offset printing.

In a preferred embodiment, the driver carrier 219 itself, in particular on its radially outwardly directed surface, at least partially a material having a friction coefficient of at least 0.25 and preferably at least 0.35 with the textile substrate 02. Preferably, this, the radially outwardly directed surface of the driver carrier 219 at least partially forming material is an elastic material, such as an elastomer. This increases the friction between the textile substrate 02 and the at least one first central cylinder 201 and thereby improves the transport of the textile substrate 02.

In addition or as an alternative to the at least one driver 217, at least one adhesive application device 218 is preferably applied to the printing material 02 and / or arranged on the at least one first central cylinder 201 applying and / or order. If it is mentioned that adhesive is applied to the at least one first central cylinder 201, then the case should be included that a driver carrier 219 is arranged and adhesive is applied to the at least one driver carrier 219. This adhesive is used in addition to the at least one driver 217 or instead of the at least one driver 217 to fix the textile substrate 02 on the lateral surface of the bale of the at least one first central cylinder 201 and / or to keep in shape.

The adhesive is preferably applied by means of the adhesive application device 218 to at least partial regions of the cylinder jacket surface of the at least one first central cylinder 201. Such partial regions are preferably a plurality of partial regions which are separated from one another in the circumferential direction and / or in the axial direction A. In one embodiment, such partial regions are two edge regions, which are arranged at the two axial end of the bale of the at least one first central cylinder 201. Each of these edge regions preferably extends in the axial direction A in each case from an edge of the bale of the at least one first central cylinder 201 in the axial direction A over a length which is at most 10% and preferably at most 5% of the length of the bale of the at least one first central cylinder 201 in FIG this axial direction A corresponds. The adhesive causes the textile printing material 02 to adhere to this cylinder jacket surface of the at least one first central cylinder 201. The adhesive can preferably be detached from the textile substrate 02 without residue and remains fully and repeatedly useable on the cylinder jacket surface of the bale of the at least one first central cylinder 201. This can be ensured by the use of a corresponding adhesive on the one hand, for example, the known adhesive by adhesive label, and the order exclusively on the cylinder surface of the at least one first central cylinder 201 and the at least one Mitnehmererträger 219 on the other.

One embodiment of an adhesive applicator 218 is at least one adhesive spray nozzle 218 that activates as needed and / or at regular intervals and applies new adhesive to the cylinder surface of the bale of the at least one first central cylinder 201. An alternative embodiment of an adhesive applicator 218 is at least one adhesive applicator roll 218 which is applied to the cylindrical surface of the bale of the at least one first central cylinder 201 as needed and / or at regular intervals and transfers adhesive thereon. The at least one adhesive applicator roller 218 extends in its axial direction A as required over a length between 1 mm and 100% of the axial length of the bale of the at least one first central cylinder 201. In one embodiment, at least one adhesive application roller 218 is used whose circumferential cylinder surface has at least one interruption, so that only separate portions of the cylindrical surface of the bale of the at least one first central cylinder 201 with the adhesive application roller 218 come into contact. Combinations of adhesive spray nozzles 218 and adhesive application rollers 218 are also possible. In a preferred embodiment, both at least one driver 217 and at least one adhesive application device 218 are arranged.

The partial surface of the cylinder jacket surface of the at least one first central cylinder 201 provided as the contact surface between the at least one first central cylinder 201 and the printing substrate 02 is formed by the cylinder jacket surface of the bale of the at least one first central cylinder 201 and / or is at least partially supported by the optionally arranged at least one driver carrier 219 formed.

Preferably, the first impression roller 206 is not arranged or at least not turned on, provided that the at least one driver 217 in the radial direction over the cylinder surface of the bale of the at least one first central cylinder 201 is outstanding. By removing optionally arranged drivers 217 and / or driver carriers 219 and / or adjusting the first impression roller 206 to the at least one first central cylinder 201 can then be converted from a textile substrate 02 to another substrate 02, for example a paper web 02.

The preferably arranged second printing unit 400 is preferably constructed analogously to the first printing unit 200 and in particular preferably has the same equipment with drivers 217 and / or channels 221 and / or driver carriers 219 and / or adhesive application devices 218.

LIST OF REFERENCE NUMBERS

01

Printing Machine, Inkjet Printing Machine, Rolling Printing Machine, Rolling Inkjet Printing Machine, Rotary Printing Machine, Rolling Rotary Printing Machine, Rolling Rotary Inkjet Printing Machine

02

Substrate, substrate web, paper web, textile web, film, plastic film, metal foil

100

Substrate source, roll-off device, reel splicer

101

printing material

102

-

103

Roller holding device, clamping device, clamping mandrel, clamping cone, clamping device, mandrel, clamping cone, clamping shaft; Rotation body, first

104

Drive motor, electric motor (103)

105

-

106

Torque transmitter, traction, belt, timing belt, gear, chain

107

Support arm (101)

108

Axle, support, support frame (107)

109

Swivel axis (108)

110

-

111

Rotation axis (101, 103)

112

frame

113

dancer roll

114

Web Edge Aligner, Web Aligner, first

115

-

116

aligning

117

Zugpresseur

118

draw roller; Rotation body, second

119

nip

120

-

121

dancer arm

122

Spannwellenlager, folding bearing

123

Driving element, clamping jaw

124

Part-turn actuator, electric motor, hydraulic cylinder, electric lift cylinder drive

125

-

126

bevel gear

127

feeding

128

Passage, opening

129

Bearings, roller bearings, plain bearings

130

-

131

component

132

Swivel range limit

133

position sensor

134

reference component

135

-

136

torque arm

137

torque limiter

138

Bracket, support

139

infeed

140

-

141

Measuring roller, feed measuring roller, measuring device, first

142

position limit

143

ring groove

144

attack

145

-

146

Drive motor, traction drive motor (118)

200

Printing unit, first

201

Central pressure cylinder, Zeritralzylinder, first; Rotation body, third

202

Substrate cleaning device, web cleaning device, dedusting device, first

203

Roller, guide roller

204

Gap (201; 203)

205

-

206

Cylinder, impression roller, first

207

Rotation axis (201)

208

Drive motor, electric motor, direct drive, single drive, synchronous motor

209

Impression gap, first

210

-

211

Printing unit, inkjet printing unit, inkjet printing unit, four-color printing unit, first

212

Printhead, inkjet printhead, first

213

Nozzle bar, first

214

Guide roller, measuring roller, measuring device, third

215

-

216

Measuring roller, first

217

Carrier, needle, hook

218

Adhesive application device, adhesive spray nozzle, adhesive application roller

219

driver support

220

-

221

Channel (201)

300

dryer unit

301

Dryer, infrared radiation dryer, radiation dryer, flow dryer, UV radiation dryer, hot air dryer, first

302

Radiation source, infrared radiation source

303

Cooling device, first

304

Chill roll, first; Rotation body, fourth

305

-

306

Kühlwalzenpresseur

307

Connecting roller, first

308

Connecting roller, wide

309

Cooling nip, first

310

-

311

Drive motor, chill roll drive motor (304), first

312

deflecting

313

Ventilation opening (301)

314

-

315

-

316

Housing (302)

317

Air supply line, line

318

Air discharge pipe, pipe

319

Back-up roller, first

320-328

-

329

Housing (300)

330

-

331

Dryer, infrared radiation dryer, flow dryer, radiation dryer, hot air dryer, UV radiation dryer, second

332

-

333

Cooling device, second

334

Chill roll, second; Rotation body, sixth

335

-

336

Chill roller press, second

337

Connecting roller, third

338

-

339

Cooling nip, second

340

-

341

Drive motor, chill roll drive motor (334), second

342

deflecting

343

Measuring roller, measuring device, sixth

400

Printing unit, second

401

Central pressure cylinder, central cylinder, second; Rotation body, fifth

402

Substrate cleaning device, web cleaning device, dedusting device, second

403

Roller, guide roller

404

Gap (401; 403)

405

-

406

Cylinder, impression roller, second

407

Rotation axis (401)

408

Drive motor, direct drive, electric motor, single drive, synchronous motor

409

Impression gap, second

410

-

411

Printing unit, inkjet printing unit, inkjet printing unit, four-color printing unit, second

412

Printhead, inkjet printhead, second

413

Nozzle bar, second

414

Deflection roller, measuring roller, fifth

415

-

416

Measuring roller, measuring device, fourth

500

Post-processing device, folding device, rewinder, sheet cutter, plan delivery

501

Outfeed roller; Rotation body, seventh

502

Auszugpresseur

503

excerpt gap

504

Drive motor, extraction roller drive (501)

505

-

506

Turning bar, guide roll

507

formers

508

guide roll

509

conveyor belts

510

-

511

Cross-cutting device

512

folding blade

513

pair of folding rollers

514

folding blade

A

Direction, axial

Claims (15)

1. A printing press (01), wherein the printing press (01) is a roller printing press (01) and comprises at least one printing stock source (100), at least one first printing unit (200), at least one first dryer (301) and at least one second printing unit (400), wherein the at least one first printing unit (200) has at least one first central cylinder (201) and at least one first print group (211) having at least one first nozzle bar (213) that has at least one print head (212) aligned on a cylinder shell surface of a body of the at least one first central cylinder (201) is arranged within the first printing unit (200), characterized in that at least one carrier (217) is protrudingly arranged over the cylinder shell surface of the body of the at least one first central cylinder (201) in the radial direction and in that the at least one nozzle bar (213) is arranged movably so far in axial direction (A) that no nozzle of the nozzle bar (213) and/or no operating region of a print head (211) of the nozzle bar (213) has a same position with respect to the axial direction (A) as any component of the body of the at least one first central cylinder (201).
2. The printing press according to Claim 1, characterized in that the at least one carrier (217) is in positively coupled contact and/or is capable of being brought into contact with a print substrate (02) configured as a textile web (02).
3. The printing press according to Claim 1 or 2, characterized in that the at least one carrier (217) is rigidly arranged to the body of the at least one first central cylinder (201) or that the at least one carrier (217) is rigidly arranged to the at least one carrier support (219) that is removeably arranged to the body of the at least one first central cylinder (201).
4. The printing machine according to Claim 1, 2 or 3, characterized in that in circumferential direction relative to the body of the at least one first central cylinder (201) adjacent carriers (217) are pairwise arranged at an angle to one another of at most 175° relative to the circumferential direction about a rotational axis (207) of the at least one first central cylinder (201).
5. The printing press according to Claim 1, 2, 3, or 4, characterized in that the at least one carrier (217) is configured as at least one immovable carrier (217) relative to the body of the at least one central cylinder (201).
6. The printing press according to Claim 1, 2, 3, 4, or 5, characterized in that the at least one carrier (217) is configured as at least one needle (217) and/or at least one hook (217).
7. The printing press according to Claim 1, 2, 3, 4, 5, or 6, characterized in that at least two carriers (217) are arranged at a distance from one another in axial direction (A) with respect to a rotational axis (207) of the at least one first cylinder (201) and are arranged prutodingly in radial direction over the cylinder shell surface of a body of the at least one first central cylinder (201) and/or that at least two carriers (217) are arranged at a distance from one another in cirumferential direction with respect to the body of the at least one first central cylinder (201) and arranged protudingly in radial direction over the cylinder shell surface of a body of the at least one first central cylinder (201).
8. The printing press according to Claim 1, 2, 3, 4, 5, 6, or 7, characterized in that an entire operating area of the at least one nozzle bar (213), at least in one printing operation, extends in axial direction (A) over at least 90% of a total breadth of the body of the at least one first central cylinder (201) and that said operating area of the at least one nozzle bar (213) comprises a total of all operating areas of all print heads (212) of said at least one nozzle bar (213).
9. The printing press according to Claim 1, 2, 3, 4, 5, 6, 7 or 8, characterized in that the at least one first dryer (301) is configured as a rotation dryer (301).
10. The printing press according to Claim 1, 2, 3, 4, 5, 6, 7, 8 or 9, characterized in that the at least one first dryer (301) comprises at least one ventilation device comprising at least one air supply line (317) and at least one air exhaust line (318).
11. The printing press according to Claim 1, 2, 3, 4, 5, 6, 7, 8, 9, or 10, characterized in that along a transport path of a print substrate (02) through the printing press (01) at least one first cooling device (303) is arranged downstream of the at least one first dryer (301).
12. The printing press according to Claim 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, or 11, characterized in that at least 75% of the transport path of the print substrate (02) runs through an operation area of the at least one first dryer (301) in at least one direction with a larger vertical component than a potentially existing horizontal component.
13. The printing press according to Claim 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, or 12, characterized in that along a transport path of a print substrate (02) at least one remoistening device is arranged downstream of the at least one first dryer (301).
14. The printing press according to Claim 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, or 13, characterized in that a part of the surface of the shell area of the at least one first central cylinder (201) that is provided as contact area between the at least one first central cylinder (201) and a print substrate (02) has a wrap angle about the at least one first central cylinder (201) of at least 270°.
15. The printing press according to Claim 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, or 14, characterized in that the at least one carrier is arranged to protrude at least 0.1 mm in radial direction over the cylinder shell surface of the body of the at least one first central cylinder (201).

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