DE102014208893A1 - press - Google Patents

press

Info

Publication number
DE102014208893A1
DE102014208893A1 DE102014208893.3A DE102014208893A DE102014208893A1 DE 102014208893 A1 DE102014208893 A1 DE 102014208893A1 DE 102014208893 A DE102014208893 A DE 102014208893A DE 102014208893 A1 DE102014208893 A1 DE 102014208893A1
Authority
DE
Germany
Prior art keywords
preferably
printing
arranged
nozzle
position
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
DE102014208893.3A
Other languages
German (de)
Inventor
Christoph Häcker
Frank Huppmann
Stefan Wander
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Koenig and Bauer AG
Original Assignee
Koenig and Bauer AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Koenig and Bauer AG filed Critical Koenig and Bauer AG
Priority to DE102014208893.3A priority Critical patent/DE102014208893A1/en
Publication of DE102014208893A1 publication Critical patent/DE102014208893A1/en
Pending legal-status Critical Current

Links

Images

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B41PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41JTYPEWRITERS; SELECTIVE PRINTING MECHANISMS, e.g. INK-JET PRINTERS, THERMAL PRINTERS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
    • B41J2/00Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed
    • B41J2/005Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by bringing liquid or particles selectively into contact with a printing material
    • B41J2/01Ink jet
    • B41J2/135Nozzles
    • B41J2/165Preventing or detecting of nozzle clogging, e.g. cleaning, capping or moistening for nozzles
    • B41J2/16585Preventing or detecting of nozzle clogging, e.g. cleaning, capping or moistening for nozzles for paper-width or non-reciprocating print heads
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B41PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41JTYPEWRITERS; SELECTIVE PRINTING MECHANISMS, e.g. INK-JET PRINTERS, THERMAL PRINTERS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
    • B41J2/00Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed
    • B41J2/005Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by bringing liquid or particles selectively into contact with a printing material
    • B41J2/01Ink jet
    • B41J2/135Nozzles
    • B41J2/165Preventing or detecting of nozzle clogging, e.g. cleaning, capping or moistening for nozzles
    • B41J2/16505Caps, spittoons or covers for cleaning or preventing drying out
    • B41J2/16508Caps, spittoons or covers for cleaning or preventing drying out connected with the printer frame
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B41PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41JTYPEWRITERS; SELECTIVE PRINTING MECHANISMS, e.g. INK-JET PRINTERS, THERMAL PRINTERS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
    • B41J25/00Actions or mechanisms not otherwise provided for
    • B41J2025/008Actions or mechanisms not otherwise provided for comprising a plurality of print heads placed around a drum

Abstract

The invention relates to a printing press which has a printing unit which has at least two print heads and a printing material guide element rotatable about an axis of rotation defining an axial direction, and each of the print heads is movably arranged along a respective linear travel path by means of a respective positioning device associated with at least this print head and wherein the linear travel paths are in respective adjustment directions which differ in pairs by at least 10 ° and at most 150 ° and wherein each of the printheads is selectively locatable by means of the respective positioning device at least either in an associated printing position or an associated maintenance position and wherein in the Servicing position of a first of the printheads is assigned a maintenance device at least a first nozzle of this first printhead and / or can be assigned and wherein the maintenance device by means of a feed along a provision path between a parking position and an insert position is arranged to be movable at least partially orthogonal to the axial direction.

Description

  • The invention relates to a printing press 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 front and back of a double-sided substrate is called register ( DIN 16500-2 ). In multicolor printing one speaks of the passer ( DIN 16500-2 ), when individual print images of different colors are matched 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 ink jet print head.
  • By the US 5 566 616 A For example, there is known a printing machine having a rotatable central cylinder, ink jet printheads, a cooling device, and a dryer which operates with either temperature and draft or radiation-induced crosslinking.
  • By the US 6 053 107 A a printing machine is known which has a driven central cylinder and a dryer with cooling device.
  • By the DE 10 2011 076 899 A1 a printing machine is known which has at least one printing unit and at least one print head designed as an inkjet printhead.
  • By the DE 10 2010 001 146 A1 and the DE 43 18 299 A1 is in each case a retraction means for drawing web-shaped substrate into a printing press known. By the EP 1 197 329 A1 is a pull-in known, which can interact with a Einziehband or a Einziehkette. By the US 2011/0043554 A1 a printing machine is known in which at least one Bedruckstoffleitelement is removed from at least one print head for drawing a web.
  • By the DE 10 2004 017 801 A1 , the US 2005/0024421 A1 , the DE 10 2010 037 829 A1 , the JP 2004 268 511 A , the US 2006/0119646 A1 , the US 5,206,666 A , the US 5,757,399 A and the US Pat. No. 7,455,401 B2 In each case a printing machine with along a travel movable printheads and maintenance device is known. By the US 2011/0149004 A1 is a printing machine with along a travel movable printheads known. The US Pat. No. 8,262,198 B2 shows a printing machine with adjustable printheads. The DE 23 49 453 A1 shows movable nozzles of a liquid jet recorder.
  • By the US 2009/0284566 A1 a printing machine is known in which by means of four positioning devices printheads in different, for reasons of a positional linear directions are movable and can be fed by movement parallel to a rotational axis of a Bedruckstoffleitelements a stationary maintenance device.
  • By the DE 10 2005 060 786 A1 , the EP 2 127 885 A1 and the US 2008/0273063 A1 In each case, a printing press is known which has at least one supply system for coating agent and at least two inkjet printheads, which are both connected via a respective liquid line connected to a normal supply, wherein the normal supply is connected via a supply line and a derivative with a buffer.
  • The invention has for its object to provide a printing press.
  • The object is achieved by the features of claim 1.
  • A printing press preferably has at least one printing unit, wherein the at least one printing unit preferably has at least one printing head element which is in particular designed as an inkjet printing head and preferably at least one printing material guide element rotatable about an axis of rotation and wherein the at least one printing head can preferably be arranged in at least one rest position, preferably in the form of a maintenance position, in which preferably at least one maintenance device is assigned to at least one nozzle of the at least one print head and / or can be assigned. Of the at least one print head can preferably be arranged in at least one print position. Preferably, an ejection direction of at least one nozzle of the at least one print head is aligned at least in a printing position on a lateral surface of the at least one printing material guide element. The at least one maintenance device is preferably designed as at least one protective cover and / or as at least one cleaning device.
  • The at least one printing unit preferably has the at least one printing material guide element which is rotatable about an axis of rotation defining an axial direction. The at least one printing unit preferably has at least four printing heads, in particular formed as inkjet printing heads. At least four positioning devices are preferably arranged in the at least one printing unit, by means of which at least one print head can be arranged optionally at least either in a respective printing position assigned to it or in a respective rest position assigned to it, in particular maintenance position and / or mounting position. In particular, at least one first print head of the at least four print heads can be optionally arranged, at least either in a first printing position assigned to it or in a first rest position assigned to it, in particular first maintenance position and / or first mounting position, by means of at least one first positioning device. In particular, at least one second print head of the at least four print heads can be arranged optionally at least either in a second print position assigned to it or in a second rest position assigned to it, in particular a second maintenance position and / or a second mount position. Preferably, the respective rest position is formed as a respective maintenance position, in the further preferred at least one designed as a cleaning device maintenance device associated with at least one nozzle of the respective printhead and / or can be assigned. One advantage is that this gives rise to the possibility of creating a particularly compact printing unit because the maintenance device and the printing heads have to be moved relative to one another only by short distances.
  • In particular, the first rest position is preferably designed as a first maintenance position, in which at least one first maintenance device designed as the first cleaning device is assigned and / or assignable to at least one nozzle of the first print head. In particular, the second rest position is preferably designed as a second maintenance position, in which at least one second maintenance device designed as a second cleaning device is assigned and / or assignable to at least one nozzle of the second print head. In particular, at least one third rest position of a third print head is preferably designed as a third maintenance position, in which at least one third maintenance device designed as a third cleaning device is assigned and / or assigned to at least one nozzle of the third print head. In particular, at least one fourth rest position of a fourth printhead is preferably designed as a fourth maintenance position, in which at least one fourth maintenance device designed as a fourth cleaning device is assigned and / or assigned to at least one nozzle of the fourth printhead.
  • Preferably, the at least one maintenance device is arranged to be movable along a provision path at least partially orthogonal to the axial direction. In particular, the at least one first maintenance device is preferably arranged to be movable along a first provision path, at least orthogonal to the axial direction. In particular, the at least one second maintenance device is preferably arranged to be movable along a second provision path, at least orthogonal to the axial direction.
  • Preferably, a minimum distance between at least a first nozzle of the at least one first print head in its first rest position and at least a second nozzle of the at least one second print head in its second rest position by at least 2 cm, preferably further referred to as rest distance, in particular maintenance distance and / or assembly removal preferably at least 5 cm, more preferably at least 10 cm, and even more preferably at least 20 cm, greater than a minimum distance between at least the at least one first nozzle of the at least one first printhead in its first printing position and the at least one second nozzle of the at least one preferably referred to as working distance at least a second printhead in its second printing position. This results in particular the advantage that the at least four printheads are more accessible if they are to be maintained and / or complained and yet arranged as close to each other in printing operation, so that a high print quality can be achieved because less negative influences between the application of printing ink of different colors are possible.
  • Printing ink is to be understood in the preceding text and generally below as meaning a coating composition, in particular also a lacquer. In particular, it should not be distinguished between printing ink and an ink, but under ink and coating means should be understood in particular ink.
  • For example, printheads are designed such that each individual printhead does not extend over an entire defined by a maximum processable with the printing press substrate width of the printing press. Then, preferably, a plurality of print heads are assigned to a same printing ink and / or at least one nozzle bar is preferably arranged, which more preferably contains a plurality of print heads which can be moved together by means of a same positioning device. In particular, at least four positioning devices are preferably arranged in the printing unit, by means of which in each case at least one nozzle bar and / or several print heads assigned to the same ink are designed to be jointly movable and, in particular, optionally at least either in a respective printing position assigned to it or in a printing position assigned to it , associated with their respective rest position can be arranged or are. The positioning devices are preferably positioning devices of the printing unit and in particular components of the printing unit. In particular, the at least one print head is preferably arranged so as to be movable away from a transport path provided for at least one printing material web by means of at least one positioning device. Preferably, the at least one printing unit has at least two, in particular at least four, nozzle bars, which each have at least two, in particular at least four, printheads, and the at least two, in particular at least four, nozzle bars are movably arranged along a respective linear travel path by means of a respective positioning device. Preferably, the printing machine is characterized in that each nozzle bar by means of its associated positioning individually and independently of other nozzle bars along its travel movable and / or in its printing position and / or its rest position can be arranged.
  • The at least one printing unit preferably has at least one positioning device for each double row of print heads arranged in the printing unit and / or at least one positioning device for each nozzle bar arranged in the printing unit and / or at least one positioning device for each coating unit arranged in the printing unit.
  • Preferably, the printing press is characterized in that the at least one maintenance device is arranged movably between at least one parking position and at least one insertion position by means of at least one feed device along at least one provision path. Preferably, the at least one maintenance device is arranged to be movable at least orthogonally to the axial direction A. Preferably, the printing machine is characterized in that the respective maintenance device is assigned in its respective position of use of the respective at least one nozzle of the respective print head in its maintenance position. Preferably, at each printhead arranged in its print position, at least one nozzle of that particular printhead is positioned below the provision path of the respective at least one maintenance device, and for each printhead arranged in its rest position, that respective at least one nozzle is located above that particular provision path.
  • Preferably, the respective provision path of the particular four maintenance devices runs linearly and in a respective or common direction which deviates from a horizontal direction by at most 45 °, preferably at most 30 °, more preferably at most 20 ° and even more preferably at most 10 °. Preferably, the respective or common deployment direction is horizontal.
  • Preferably, the printing press is characterized in that a position of at least one reference nozzle of a respective print head in its printing position and a position of said at least one reference nozzle of the respective print head in its maintenance position relative to a fixed by the axis of rotation of the at least one Bedruckstoffleitelements axial direction by at most 50th % of a measured in the axial direction width of a working area of the respective printhead having nozzle bar and / or at most 50% of a defined by a maximum processable with the printing press substrate width of the printing press differ. This makes it possible to realize a particularly space-saving printing machine, which is still easy to maintain and whose printheads are preferably easy to assemble and disassemble. In particular, the printing press is preferably characterized in that a position of the at least one first nozzle in the at least one printing position and a position of said at least one first nozzle in the at least one maintenance position relative to a fixed by the axis of rotation of the at least one Bedruckstoffleitelements axial direction At most 50% of the measured in the axial direction width of the working area of the at least one printhead having nozzle bar and / or at most 50% of the maximum determined by the printing machine width of the substrate width of the printing press distinguish.
  • In the at least one maintenance position of the respective print head, preferably at least one maintenance device is assigned and / or assigned to at least one nozzle of the at least one print head, and the at least one maintenance device of at least one nozzle of the at least one print head is at least partially with respect to a respective ejection direction At least one nozzle arranged opposite and / or can be arranged.
  • Preferably, the printing machine is characterized in that at least a first of at least two printheads, in particular a first printing unit preferably each by means of a first associated positioning optionally either at least in its associated first printing position can be arranged or in a first associated rest position, in particular maintenance position and / or mounting position can be arranged, wherein in the at least one first rest position, a rest position of at least a first nozzle of the at least two printheads a first rest distance, in particular maintenance distance and / or mounting distance of a first working position thereof at least a first nozzle thereof at least a first having at least two printheads in its first printing position. Preferably, at least one second of the at least two print heads, in particular this first printing unit preferably can be arranged either by means of a second positioning device assigned thereto either at least in an associated second printing position or in an associated second rest position, in particular maintenance position and / or mounting position, wherein in the at least one second rest position, a rest position of at least a second nozzle of the at least one second of the at least two printheads a second rest distance, in particular maintenance distance and / or mounting distance of a second working position thereof at least a second nozzle thereof at least a second of the at least two printheads in its second printing position having.
  • Preferably, the first rest distance, in particular maintenance distance and / or mounting distance differs from the second rest distance, in particular maintenance distance and / or mounting distance by at least 2 cm, more preferably at least 5 cm, even more preferably at least 10 cm and even more preferably at least 20 cm. In particular, a rest distance is a distance between a position of a nozzle in its rest position, this printhead having printhead and a position of the same nozzle arranged in its printing position same printhead. This results in particular the advantage that, for example, a straight-line and therefore simple and inexpensive feeder can be arranged by means of a maintenance devices can be used on different printheads. Another advantage is that there is thus enough room for all maintenance positions in their respective deployment positions. Preferably, in each case at least two pressure heads, which are arranged at different positioning devices of the total of at least four pressure heads, which are preferably arranged on different positioning devices, have pairwise identical idle distances. This results, for example, from a symmetry of an arrangement of the positioning devices, wherein, for example, a plane of symmetry completely contains the axis of rotation of the at least one printing material guide element.
  • Preferably, the printing press is characterized in that in a rest position arranged in its third printhead a rest position of at least a third nozzle of the at least one third printhead has a third rest distance from a working position thereof at least a third nozzle thereof at least a third printhead in its third printing position and in that when the fourth print head is in its rest position, a rest position of the at least one fourth nozzle of the at least one fourth print head has a fourth rest distance from a working position of the same at least one fourth nozzle of the at least one fourth print head in its fourth print position, and the third rest distance equals the second rest distance is and / or that the fourth rest distance is equal to the first rest distance.
  • Preferably, the printing press is characterized in that, in particular arranged at the first maintenance position in particular first printhead at least one particular first maintenance device between the at least one particular first nozzle of the at least one particular first printhead and one of these at least one particular first nozzle next area of the for At least one in particular first maintenance device between the at least one particular first nozzle of the at least one particular first printhead and one of these at least one in particular first at least one particular first maintenance position angeordentem particular first printhead arranged and / or arranged Nozzle next portion of a transfer body can be arranged and / or arranged.
  • The printing press, which preferably has at least one printing unit which preferably has at least two and more preferably at least four print heads and at least one printing material guide element rotatable about an axis defining an axial direction, is preferably characterized in that each of the at least two print heads is connected by means of a respective printing head , At least this printhead associated positioning device is arranged to be movable along a respective linear travel, wherein the linear travel paths have in respective adjustment directions, which differ in pairs by at least 10 ° and at most 150 °. Prefers Furthermore, each of the at least two print heads can be optionally arranged by means of the respective positioning device at least either in a printing position assigned to it or at least one maintenance position assigned to it. In the at least one maintenance position of a first print head of the at least two print heads, at least one maintenance device of at least one first nozzle of this at least one first print head is preferably assigned to and / or assignable. Furthermore, the at least one maintenance device is preferably arranged such that it can be moved at least partially along an at least one supply path between at least one parking position and at least one insertion position orthogonal to the axial direction. This results in particular the advantage that the printing unit can be built very compact. By arranging the linear travel paths at corresponding angles, for example around a central cylinder, less space is required than if all the print heads were arranged to be movable in the axial direction or in opposite directions. The at least partially orthogonal mobility of the maintenance device also favors a compact design of the printing unit, in particular because the maintenance device can be as wide as the working area of the nozzle beam and the printing unit still need not be twice as wide. In contrast to printheads which can be moved parallel to one another, an enlarged space area for maintenance devices results in their insert positions with printing positions of the printheads arranged very close to one another at the same time.
  • The printing machine preferably has at least one printing unit, which preferably has at least one print head designed as an inkjet print head. The at least one printing unit preferably has at least one printing material guide element which can be rotated about a respective axis of rotation. Preferably, the at least one print head is designed to be movable along an adjustment path in at least one adjustment direction, the adjustment direction preferably having at least one component oriented orthogonally to the axial direction defined by the rotation axis of the at least one printing material guide element. Preferably, the printing press is characterized in that at least temporarily within a printing unit at least temporarily and preferably exactly along at least one Einziehwegs movable, preferably endless drawing-in means for drawing a printing substrate arranged and / or can be arranged and that at least parts of the at least one Einziehwegs on the axial direction with respect to each target area of each nozzle of each print head of this printing unit have a distance of at least 2 cm. Preferably, at least portions of the at least one pull-in path and preferably the complete pull-in path in the axial direction relative to each target area of each nozzle of each printhead of that printing unit have a distance of at least 2 cm, more preferably at least 4 cm, even more preferably at least 6 cm, and even wider preferably at least 8 cm. Preferably, at least portions of the necking agent, and more preferably the complete necking agent, have a distance of at least 2 cm, more preferably at least 4 cm, even more preferably at least 6 cm, and even more preferably at least, in the axial direction relative to each target area of each nozzle of each printhead of that printing unit 8 cm up. This results in particular the advantage that a substrate web can be fed into the press particularly easily and quickly and precisely, and yet there is no danger that damage and / or contamination of nozzles of print heads could occur.
  • The printing machine is preferably characterized in that at least one printing material web is connected and / or connectable to the at least one retraction means via at least one connecting element, wherein the at least one connecting element is further designed as at least one drawing-in tip. Preferably, the printing press is characterized in that the at least one retraction means is formed as at least one endless Einziehband and / or that at least one Einziehleitelement is arranged by means of which at least one Einziehweg the at least one retraction means is fixed and / or fixed, more preferably the at least one Einziehleitelement is designed as at least one deflection roller or at least one chain rail and / or the at least one Einziehleitelement is designed as at least one rotatable Einziehleitelement.
  • Preferably, the at least one drawing-in means for drawing in a printing material web along the intended transport path of the printing material web is in particular arranged permanently along its at least one drawing-in path within the printing press. Preferably, the at least one retraction means in each case at least two and more preferably at least five provided connection points at which at least one printing material directly and / or at least one connecting element with the at least one retraction means is connectable. Preferably, the printing press is characterized in that the at least two connection points with respect to the axial direction have a distance of at most 10 cm, more preferably no more than 5 cm, even more preferably no more than 2 cm and even more preferably no distance and / or are spaced at least two connection points along the at least one Einziehwegs from each other. Preferably encloses Einziehweg of at least one Einziehmittels the at least one rotatable Bedruckstoffleitelement viewed from an axis of rotation of the at least one Bedruckstoffleitelements in an angular range of at least 180 ° and at least one rotatable Einziehleitelement is arranged by means of which at least one Einziehweg the at least one retraction means is fixed and / or fixed and which is arranged rotatably about a same axis of rotation, as at least one Bedruckstoffleitelement a printing unit of the printing press. More preferably, the Einziehweg the at least one retraction means at least along this angular range on a radius of curvature, which differs by at most 5 cm, from a radius of curvature of this at least one Bedruckstoffleitelements.
  • Preferably, the printing machine is characterized in that an axial projection plane is defined by a surface normal, which is parallel to the axial direction or deviates from this axial direction by more than 2 ° and that is located in the axial projection plane projection of the substrate provided for transport path in the axial direction and a lying in the axial projection plane projection of the provided for the at least one Einziehmittel Einziehwegs in the axial direction at least over 25% of a length of the projection of the Einziehmittel provided for Einziehwegs overlap and / or that only at least one Einziehmittel is arranged , Which is arranged in the axial direction with respect to only one side of the intended transport path for substrate and / or whose Einziehweg runs only on one side of the intended transport path for substrate.
  • In particular by means of the printing press, a method for drawing at least one printing material web into at least one printing unit of a printing machine is preferably feasible, wherein the axial direction extends parallel to the axis of rotation of the at least one printing material of the at least one printing unit and wherein in a shutdown at least one designed as an inkjet printhead printhead the at least one printing unit is parked in at least one setting direction of an intended transport path of the at least one printing material and then in a retraction at least one retraction along a Einziehwegs is moved by the at least one printing unit and thereby the at least one printing material along the for the at least one printing material provided transport path and wherein the Einziehweg and the transport path are seen in an axial direction spaced from each other. This at least one adjustment direction is preferably oriented at least partially orthogonal to the axial direction.
  • Preferably, the method is characterized in that the at least one retraction means is connected in a connecting operation by means of at least one connecting element with the at least one printing material web. Preferably, the at least one connecting element passes a printing position of the at least one print head while it is parked from the intended transport path and / or arranged in at least one rest position and / or passes the at least one connecting element during the Einziehvorgangs at least one target area at least one nozzle of the at least one print head and / or does not happen during the Einziehvorgangs no part of the at least one retraction means a target area of a nozzle of the at least one print head. Preferably, the method is characterized in that then at least one print head against the at least one adjustment direction and / or along a travel path to the intended transport of the at least one printing material is employed and / or positioned in its printing position in a setting.
  • Preferably, the method is characterized in that in the shutdown at least two print heads of the at least one printing unit are parked in a respective adjustment direction of a designated transport path of at least one printing material, the respective positioning directions differ in pairs by at least 10 ° and at most 150 °.
  • The method is preferably characterized in that, in at least one operating state, the at least one retraction means is connected to the printing material by means of the at least one connecting element and the at least one print head is shut off from the intended transport path and / or arranged in at least one rest position and at least one nozzle with its Ejecting direction is aligned with the at least one connecting element and / or that in the at least one operating state the at least one connecting element with the at least one Bedruckstoffleitelement or with at least one transfer body in contact and / or that the at least one retraction in this operating state related to the axial direction to each target area of each nozzle of each printhead of this printing unit has a distance of at least 2 cm.
  • Preferably, only at least one retraction means is used, which is arranged on the axial direction with respect to only one side of the intended transport path for printing material and / or whose Einziehweg runs only on one side of the intended transport path for printing material.
  • The at least one first printing unit preferably has the at least two printheads, which are preferably arranged on at least one first movable nozzle bar and are in particular designed as inkjet printheads. Preferably, the printing machine is characterized in that the printing machine has at least one supply system for coating agent and that the at least one supply system has at least a normal supply and that the at least two printheads connected via at least one first fluid line connected to the at least one normal supply and / or connectable are. For example, each of the at least two print heads is connected via at least one first fluid line to the at least one normal reserve and / or connectable. The at least one supply system preferably has at least one return storage and at least one intermediate storage. The at least one normal reserve preferably has at least one overflow outlet, which is more preferably connected and / or connectable to the at least one intermediate store via the at least one return store and at least one discharge and / or which is preferably designed as at least one passive overflow drain. Preferably, the at least one normal supply and the at least one return accumulator are arranged to be movable together with the at least one nozzle bar. Preferably, the at least one nozzle bar can be arranged by means of at least one of the positioning devices, in particular at least one of the positioning devices of the at least one printing unit, optionally at least either in a printing position assigned to it or at least one maintenance position assigned to it.
  • Preferably, a portion of the at least one discharge line is arranged between the at least one overflow drain and the at least one return store, within which at least one valve, in particular at least one second valve, is arranged. At least one first is preferably arranged within at least one feed line, wherein the at least one intermediate store is preferably connected and / or connectable via at least one feed line to the at least one normal store. At least one first liquid pump is preferably arranged in the at least one feed line.
  • An advantage is in particular that a separation of the at least one normal supply and the at least one return accumulator is possible by the at least one valve disposed within the discharge line between the at least one overflow drain and the at least one return accumulator. As a result, for example, within the normal supply, a pressure can be increased in order to carry out a nozzle cleaning of the print heads and, at the same time and independently of this, coating agent can be removed from the at least one return storage.
  • In particular, it is ensured by the joint mobility of the at least one return accumulator with the at least two printheads that a flow of coating agent from the overflow drain even when arranged in the maintenance position positioning always to constant conditions and thus optimized possible, for example, exclusively by gravity causes. In particular, this advantage results if along the at least one discharge line after the at least one overflow drain and before any pump, the at least one return storage is arranged. Preferably, at least one return pump is arranged along the at least one discharge line after the at least one return reservoir. Then, irrespective of the position of the positioning device and independently of any other pressure set within the at least one normal supply, pumping off of coating agent from the at least one return reservoir can take place.
  • In particular, the above-mentioned advantages result if, as preferred, a direction of adjustment of a particular by means of at least one positioning effected by the at least one nozzle bar at least one component in the vertical direction, which more preferably at least 10 cm, more preferably at least 20 cm and even more preferred At least 30 cm, because without the appropriate measures hydrostatic pressure changes due to the height differences could lead to different conditions. More preferably, the at least one nozzle bar is arranged movably relative to a frame of the printing unit by means of the at least one positioning device, and the at least one intermediate store is arranged stationarily relative to the frame of the printing unit. Thus, a relatively large buffer can be arranged, which does not have to be moved by means of the positioning device.
  • In addition, the at least one normal supply via at least one supply line and at least one discharge is preferably connected at least indirectly to at least one buffer store, and the at least one normal supply and / or the at least one discharge has at least one overflow drain, whose outflow side communicates with the at least one at least indirectly Latch connected and / or arranged connectable. Preferably, at least one volume provided as the first gas space is arranged in the at least one normal reserve and is connected and / or connectable via at least one first gas line to at least one first gas pump. Then, in particular the advantage that particularly constant pressure conditions prevail on the printheads and thereby improves print quality and handling is facilitated, for example by less manual adjustments and / or less cleaning measures must be performed. Preferably, at least one volume, which is provided in particular as a third gas space, is arranged in the at least one return reservoir and is connected and / or connectable with at least one first gas pump via at least one first equalizing line. For example, a gas volume is arranged in the at least one normal reserve, in which a normal pressure prevails, which is lower than an ambient pressure, which prevails on an ejection side of at least one nozzle of the at least one print head. More preferably, the at least one first gas line and the at least one compensation line are separably connected to one another and / or connectable via at least one pressure regulator. Thus, either a same pressure in all relevant gas chambers can be ensured, but also, for example, when the first and second valves are pressurized and the at least one normal supply is increased, while in the third gas chamber a pressure equalization, for example during a pumpdown process, is made possible.
  • Preferably, at least two normal stocks are arranged to be movable together with a same at least one nozzle bar, and each of these at least two normal stocks is in each case connected and / or connectable via at least one first liquid line to at least one of the at least two print heads. Thus, a uniform hydrostatic pressure in all printheads can be achieved, even if they are arranged at different heights. For this purpose, the at least two print heads are further arranged relative to one another at different heights on the at least one nozzle bar and are vertical distances of each of the at least two print heads to the respective normal store connected to it via a first liquid line up to a tolerance value of at most 1 cm preferably not more than 0.5 cm.
  • Preferably, the printing press is characterized in that the printing press has at least a first printing unit and at least one supply system for coating agent and that the at least one supply system has at least one normal supply and that each of the at least two print heads via at least a first fluid line with the at least one normal supply is connected and / or arranged connectable and that the at least one normal supply is connected via at least one supply line and at least one derivative with at least one buffer and that the at least one normal supply and / or the at least one derivative at least one overflow drain has its outflow side with the at least a buffer is connected and / or arranged connectable. This results in particular in the advantage that constant operating conditions can be ensured for the print heads, in particular that a constant pressure prevails within the coating means at nozzle openings of the print heads.
  • For example, the printing machine is characterized in that an ejection direction of at least a first nozzle of the at least one first printhead in the first printing position of an ejection direction of said at least one first nozzle of the at least one printhead in the first rest position, in particular maintenance position and / or mounting position to a Angle of at least 5 °, more preferably at least 10 °, even more preferably at least 15 ° and even more preferably at least 20 ° different. For example, this applies analogously to all at least four print heads.
  • Preferably, however, an ejection direction of each nozzle of the at least two, in particular at least four print heads in the respective printing position and in the respective rest position, in particular maintenance position, mounting position is the same.
  • Preferably, a position of the at least one nozzle with the print head arranged in the at least one print position and a position of the at least one nozzle with the print head arranged in the at least one rest position, in particular maintenance position and / or mounting position, differ to the axial axis defined by the axis of rotation of the at least one printing material guide element Direction relative to at most 50%, more preferably at most 20%, even more preferably at most 10% and even more preferably at most 2% of the measured in the axial direction width of the working range of the at least one print head having nozzle beam and / or at most 50%, farther preferably not more than 20%, even more preferably not more than 10%, and even more preferably not more than 2% of the working width of the printing press determined by the maximum width of the substrate that can be processed by the printing machine. This results in particular the advantage that for all print heads constant conditions during maintenance operations and / or in particular a same or same maintenance device are made possible and yet a geometry in the printing operation can be optimized for just this printing operation. Preferably, a plane in which this angle is measured, determined by a surface normal, which is parallel to the axial direction A or from this axial Direction A deviates by more than 2 °, more preferably, this plane is the axial projection plane.
  • Embodiments of the invention are illustrated in the drawings and will be described in more detail below.
  • Show it:
  • 1a a schematic representation of a roll printing machine;
  • 1b a schematic representation of a roll printing machine with alternative web guide;
  • 2 a schematic representation of a portion of a printing unit with a double row of printheads;
  • 3 a schematic representation of a printing unit with a plurality of nozzle bars, the print heads are arranged in printing positions;
  • 4 a schematic representation of a printing unit with a plurality of nozzle bars whose printheads are arranged in rest positions, in particular maintenance positions, wherein positioning drives are shown interrupted for the sake of clarity;
  • 5 a schematic representation of a printing unit with a plurality of nozzle bars whose printheads are arranged in rest positions, in particular mounting positions, wherein positioning drives are shown interrupted for the sake of clarity;
  • 6 a schematic representation of a printing unit with a plurality of nozzle bars whose printheads are partially arranged in rest positions, in particular maintenance positions and partially in printing positions, wherein positioning drives are shown for clarity sake interrupted;
  • 7a a schematic representation of a printing unit with a plurality of nozzle bars, the print heads are partially arranged in maintenance positions and partially in mounting positions, positioning actuators are shown for clarity, interrupted;
  • 7b a schematic representation of a printing unit with a plurality of nozzle bars, wherein positioning drives are shown interrupted for the sake of clarity;
  • 7c a schematic representation of a printing unit with a plurality of nozzle bars, wherein positioning drives are shown interrupted for the sake of clarity;
  • 8a a schematic representation of a supply system for coating agent;
  • 8b a schematic representation of an alternative supply system for coating agent;
  • 9a a schematic representation of a printing unit with four positioning devices and four maintenance devices, by means of the two right positioning printheads are arranged in print positions and arranged by means of the two left positioning printheads in example designed as mounting positions rest positions and the maintenance devices are in parking positions and wherein normal supplies and return memory are shown only partially and by way of example;
  • 9b a schematic representation of a printing unit according to 9a in which printheads are arranged in printing positions by means of the two right positioning devices and printheads are arranged in maintenance positions by means of the two left positioning devices and the two left maintenance devices are in use positions.
  • A printing press 01 has at least one printing material source 100 , at least a first printing unit 200 , preferably at least a first dryer 301 , preferably at least a second printing unit 400 and preferably at least a second dryer 331 and preferably at least one post-processing device 500 on. The printing press 01 is also preferred as an inkjet printing machine 01 educated. The printing press is preferred 01 as a roll printing machine 01 formed, more preferably as a roller inkjet printing machine 01 , The printing press 01 is for example as a rotary printing machine 01 designed, for example as a rotary web press 01 , in particular roll-rotary ink-jet printing machine 01 , In the case of a roll printing press 01 is the source of printing material 100 as Rollenabspulvorrichtung 100 educated. In the case of a sheet-fed press or sheet-fed rotary printing press, the source of printing material 100 designed as a sheet feeder. In the substrate source 100 At least one printing material is preferred 02 aligned, preferably with respect to at least one edge of this substrate 02 , In the Rollenabspulvorrichtung 100 a roll printing machine 01 becomes at least one web-shaped substrate 02 So a printing material web 02 For example, a paper web 02 or a textile web 02 or a slide 02 , For example, a plastic film 02 or a metal foil 02 from one printing material 101 unwound and preferably aligned with respect to their edges in an axial direction A. The axial direction A is preferably a direction A, which is parallel to a rotation axis 111 a substrate roll 101 and / or at least one Bedruckstoffleitelements 201 ; 401 , For example, at least one central cylinder 201 ; 401 extends. A transport path of the at least one printing substrate 02 and in particular the printing material web 02 runs after the at least one printing material source 100 preferably by the at least one first printing unit 200 where the substrate 02 and in particular the printing material web 02 preferably by means of at least one printing ink at least on one side and preferably in conjunction with the at least one second printing unit 400 is preferably provided on two sides with a printed image.
  • After passing the at least one first printing unit 200 the transport path of the printing material passes through 02 and in particular the printing material web 02 prefers the at least one first dryer 301 to dry the applied ink. Printing ink is to be understood in the preceding text and generally below as meaning a coating composition, in particular also a lacquer. In particular, it should not be distinguished between printing ink and an ink, but under ink and coating means should be understood in particular ink. Preferably, the at least one first dryer 301 Part of a dryer unit 300 , After passing 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 becomes the substrate 02 and in particular the printing material web 02 Preferably, the at least one post-processing device 500 fed and further processed there. The at least one post-processing device 500 is for example as at least one folding device 500 and / or as a take-up device 500 and / or as at least one planned expense 500 educated. In the at least one folding device 500 is the preferred two-sided printed substrate 02 preferably further processed to individual printed products.
  • Preferred is along the transport path of the printing substrate 02 and in particular the printing material web 02 through the printing press 01 after the at least one first printing unit 200 preferably at least the first dryer 301 and / or after the at least one first dryer 301 preferably at least the second printing unit 400 and / or after the at least one second printing unit 400 preferably, the at least one second dryer 331 and / or after the at least one second dryer 331 Preferably, the at least one post-processing device 500 arranged. This ensures that a double-sided printing of the substrate 02 and in particular the printing material web 02 in high quality.
  • The following is a roll printing machine 01 described in more detail. However, the same details can be applied to other printing presses as well 01 , for example, sheet-fed presses, provided they do not conflict. Bedruckstoffrollen 101 , which are preferred in the Rollenabspulvorrichtung 100 come used, preferably each have a sleeve on which the web-shaped substrate 02 for use in the roll printing press 01 is wound up. The printing material web 02 preferably has a width of 700 mm to 2000 mm, but may also have an arbitrarily smaller or preferably larger width. In the Rollenabspulvorrichtung 100 is at least one substrate roll 101 rotatably arranged. In a preferred embodiment, the Rollenabspulvorrichtung 100 for receiving a substrate roll 101 designed suitable, so has only one storage position for a Bedruckstoffrolle 101 on. In another embodiment, the Rollenabspulvorrichtung 100 as a reel changer 100 formed and has storage positions for at least two Bedruckstoffrollen 101 on. The roll changer is preferred 100 designed so that it allows a flying role change, so connecting a first substrate web 02 a currently processed substrate roll 101 with a second substrate web 02 a substrate to be processed below 101 while both the currently processed substrate roll 101 , as well as the substrate to be processed below 101 rotate.
  • A working width of the printing press 01 is a dimension which is preferably orthogonal to the intended transport path of the printing substrate 02 by the at least one first printing unit 200 extends, more preferably in the axial direction A. The working width of the printing press 01 preferably corresponds to a maximum width, which may have a substrate to still with the printing press 01 to be processed, so a maximum with the printing press 01 processable substrate width.
  • The Rollenabspulvorrichtung 100 preferably has at least one roll holding device per storage position 103 on, for example, as a clamping device 103 and / or as a clamping device 103 is trained. Preferably, the at least one roller holding device 103 at least a first motor-driven rotary body 103 The at least one roll holding device 103 serves a rotatable attachment of at least one Bedruckstoffrolle 101 , The at least one roll holding device 103 preferably has at least one drive motor 104 on.
  • Preferably, the Rollenabspulvorrichtung 100 along the transport path of the printing material web 02 after the roll holding device 103 one preferably on a dancer lever 121 deflectable arranged dancer roller 113 and / or a first web edge director 114 and / or a, one of a draw roller 118 and a train press 117 formed intake nip 119 and one as the first measuring roller 141 , in particular feed measuring roller 141 trained first measuring device 141 comprising infeed mechanism 139 on. This draw roller 118 preferably has its own, as Zugantriebsmotor 146 trained drive motor 146 which is preferably connected to a machine control. The draw roller 118 preferably provides at least a second motor-driven rotary body 118 by means of the dancer roller 113 is a web tension adjustable and durable within limits and / or the web tension is preferably kept within limits. Optionally, the Rollenabspulvorrichtung 100 an adhesive and cutting device, flying by means of a roll change, ie without stopping the printing material web 02 can go on.
  • The first track edge organizer 114 Below is preferred the intake 139 arranged. As part of the intake system 139 is preferably the at least the tension roller 118 arranged, preferably with the Zugpresseur 117 together the intake nip 119 is arranged. The intake nip 119 serves to regulate a web tension and / or a transport of the printing material 02 , By means of the at least one is preferred as the first measuring roller 141 trained first measuring device 141 the web tension measurable. The at least one as the first measuring roller 141 trained first measuring device 141 is in the transport direction of the printing material web 02 preferably in front of the entry nip 119 arranged.
  • A first printing unit 200 is the Rollenabspulvorrichtung 100 with respect to the transport path of the printing material 02 downstream. The first printing unit 200 has at least one Bedruckstoffleitelement 201 on. This is preferably at least one printing material guide element 201 as at least a first central pressure cylinder 201 or shortly central cylinder 201 educated. If below from a central cylinder 201 the speech is, so is always a pressure cylinder 201 meant. The at least one first central cylinder 201 preferably provides at least a third motor-driven rotary body 201 dar. The printing substrate 02 wraps around the first central cylinder in printing operation 201 at least partially. 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 substrate 02 and in particular the printing material web 02 with the first central cylinder 201 in contact. Accordingly, at least 50% and more preferably at least 75% of the cylinder jacket surface of the first central cylinder are preferably seen in the circumferential direction during the printing operation 201 with the printing material web 02 in contact. This means that one, as the contact surface between the at least one first central cylinder 201 and preferably as a printing substrate 02 formed substrate 02 provided partial surface of a cylindrical surface of the at least one first central cylinder 201 the wrap around 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 the first printing unit 200 is preferably at least one preferred as a second measuring roller 216 trained second measuring device 216 arranged to measure the web tension. Along the transport path of the printing material web 02 in front of the first central cylinder 201 the first printing unit 200 is preferably at least a first substrate preparation device 202 or web preparation device 202 on the substrate web 02 acting and / or on the intended transport of the printing material web 02 arranged aligned. The first substrate preparation device 202 is at least a first side and preferably both sides of the substrate web 02 assigned and in particular at least on this first side of the printing substrate 02 and preferably on both sides of the printing material web 02 designed to be effective and / or effective. Preferably, along the transport path of the printing material web 02 between the first web edge director 114 and the at least one first central cylinder 201 that of the draw roller 118 and the Zugpresseur 117 formed entry nip 119 arranged.
  • The at least one first substrate preparation device 202 is in a preferred embodiment along the transport path of the printing material web 02 after the entry nip 119 and in front of the first central cylinder 201 on the substrate web 02 acting and / or on the transport of the printing material web 02 arranged aligned. Preferably, the at least one first substrate preparation device 202 as at least one printing material cleaning device 202 or web cleaning device 202 educated. Alternatively or additionally, the at least one printing material preparation device 202 as at least one coating device 202 formed in particular for water-based coating compositions. Such a coating serves, for example, a primer. Alternatively or additionally, the at least one printing material preparation device 202 as at least one corona device 202 and / or discharge device 202 for corona treatment of the substrate 02 educated.
  • Preferred is a first deflection roller 203 trained roller 203 the first printing unit 200 with respect to its axis of rotation parallel to the first central cylinder 201 arranged. This first guide roller 203 is preferred from the first central cylinder 201 spaced apart. In particular, there is preferably a first gap 204 between the first guide roller 203 and the first central cylinder 201 , which is greater than a thickness of the substrate web 02 , Under the thickness of the substrate web 02 is a smallest dimension of the substrate web 02 to understand. The printing material web 02 preferably wraps around a part of the first guide roller 203 and is deflected by this so that the transport path of the printing substrate 02 in the first space 204 both tangential to the first guide roller 203 as well as tangent to the first central cylinder 201 runs. A lateral surface of the deflection roller 203 consists preferably of a comparatively inelastic material, more preferably a metal, even more preferably steel or aluminum.
  • At least one is preferred as the first impression roller 206 trained first cylinder 206 in the first printing unit 200 arranged. 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 by means of a Anstellantriebs to the first central cylinder 201 adjustable and / or arranged remotely from this. In one to the first central cylinder 201 Employed state forms the first impression roller 206 preferably together with the first central cylinder 201 a first impression gap 209 , The printing material web 02 preferably passes through the first impression gap in the printing operation 209 , Through the first guide roller 203 and / or preferably by the first impression roller 206 becomes the printing material web 02 preferably flat and more preferably in a unique and known position to the first central cylinder 201 created. Preferably, apart from at most the first impression roller 206 and / or optionally further impression rollers no further rotation body, in particular no further roller and no further cylinder with the at least one first central cylinder 201 in contact.
  • The axis of rotation of the first impression roller is preferred 206 below the axis of rotation 207 of the first central cylinder 201 arranged.
  • The first central cylinder 201 preferably has its own, the first central cylinder 201 associated first drive motor 208 on, preferably as an electric motor 208 is formed and further preferred as a direct drive 208 and / or single drive 208 of the first central cylinder 201 is trained. Under a direct drive 208 is a drive motor 208 to understand that without interposing further with the substrate 02 in contact rotating body with the at least one first central cylinder 201 is in torque transmitting and / or transferable connection. Under a single drive 208 is a drive motor 208 to understand that as a drive motor 208 excluding the at least one first central cylinder 201 is trained. 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 rotational angle sensor is preferably arranged, which has a rotational angle position of the first drive motor 208 and / or the first central cylinder 201 itself measuring and / or measuring and sending to a higher-level machine control and / or is designed to transmit. The first rotation angle sensor is designed, for example, as a rotary encoder or absolute value encoder. With such a rotation angle sensor is a rotational position of the first drive motor 208 and / or preferably a rotational position of the first central cylinder 201 preferably by means of the higher-level machine control absolutely determinable. Additionally or alternatively, the first drive motor 208 of the first central cylinder 201 connected in such a circuit with the machine control, that the machine control on the basis of from the machine control to the first drive motor 208 of the first central cylinder 201 predetermined target data to a rotational position of the first drive motor 208 at any time via the rotational 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, one preferred is the rotational angle position or rotational position of the first central cylinder 201 and / or the first drive motor 201 predefined area of the machine control directly, in particular without interposed sensor, with at least one print head 212 the first printing unit 200 controlling area of the machine control connected.
  • Within the first printing unit 200 is at least a first printing unit 211 arranged. The at least one first printing unit 211 is preferred 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 206 preferably on the at least one first central cylinder 201 acting and / or arranged and / or aligned and / or arranged alignable. The at least one first printing unit 211 is as one first inkjet printing unit 211 trained and will also be the first ink-jet printing unit 211 called. The first printing unit 211 preferably has at least one nozzle bar 213 and preferably several, in particular four nozzle bars 213 on. The at least one first printing unit 211 and thus the at least one first printing unit 200 preferably has the at least one first printhead 212 on that as an inkjet printhead 212 is trained. Preferably, the at least one nozzle bar 213 in each case at least one print head 212 and preferably each multiple printheads 212 on. Every printhead 212 preferably has a plurality of nozzles from which ink droplets are ejected and / or ejected. A nozzle bar 213 is a component that preferably over at least 80% and more preferably at least 100% of the working width of the printing press 01 extends and as a carrier of the at least one printhead 212 serves. An axial length of the bale of the at least one first central cylinder is preferred 201 at least as big as the working width of the printing machine 01 , There is a single or several nozzle bars 213 per printing unit 211 arranged. Each nozzle is preferably a clearly defined target area in the direction A of the width of the printing material web 02 and preferably to the direction A, in particular the axis of rotation 207 the at least one first central cylinder 201 related assigned. Each target area of a nozzle is preferably in particular with respect to the circumferential direction of the at least one first central cylinder 201 clearly defined at least in the printing operation. In particular, a target area of a nozzle is that, in particular, substantially rectilinear space area which extends in a direction of ejection of this nozzle from this nozzle.
  • The at least one first nozzle bar 213 preferably extends orthogonal to the transport path of the printing substrate 02 over the working width of the printing press 01 , The at least one nozzle bar 213 preferably has at least one row of nozzles. The at least one row of nozzles, viewed in the axial direction A, preferably has the entire working width of the printing press 01 and / or width of the bale of the at least one first central cylinder 201 at regular intervals nozzle openings. In one embodiment, this is a single continuous printhead 212 arranged, extending in the axial direction A over the entire working width of the printing press 01 and / or the entire width of the bale of the at least one first central cylinder 201 extends. The at least one row of nozzles is preferred as at least one linear over the entire width of the printing material web 02 formed in the axial direction A extending juxtaposition of individual nozzles. In another preferred embodiment, several print heads are juxtaposed in the axial direction A. 212 on the at least one nozzle bar 213 arranged. Since usually such individual printheads 212 are not provided with nozzles up to an edge of their housing, are preferably at least two and more preferably exactly two rows of print heads extending in the axial direction A. 212 in the circumferential direction of the first central cylinder 201 arranged offset to one another, preferably so that in the axial direction A successive printheads 212 preferably alternately one of the at least two rows of printheads 212 always preferentially 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 , The at least one row of nozzles is preferably not formed as a single linear juxtaposition of nozzles, but results as the sum of a plurality of individual, more preferably two, circumferentially offset from each other arranged juxtaposition of nozzles.
  • Indicates a printhead 212 multiple nozzles, so form all target areas of the nozzles of this printhead 212 together a workspace of this printhead 212 , Workspaces of Printheads 212 a nozzle bar 213 and in particular a double row of printheads 212 As seen in the axial direction A to each other and / or overlap seen in the axial direction A. In this way, even when not in the axial direction A printhead 212 ensures that seen in the axial direction A at regular and preferably periodic distances target areas of nozzles of the at least one nozzle beam 213 and / or in particular each double row of printheads 212 lie. In any case, an entire working area of the at least one nozzle bar extends 213 preferably over at least 90% and more preferably 100% of the working width of the printing machine 01 and / or the entire width of the bale of the at least one first central cylinder 201 in the axial direction A. On one or both sides with respect to the axial direction A, a narrow region of the printing material web 02 and / or the bale of the first central cylinder 201 be present, which is not the working area of the nozzle bars 213 belongs. An entire working area of the at least one nozzle bar 213 is preferred from all workspaces of printheads 212 this at least one nozzle bar 213 and is preferably from all target areas of nozzles of these printheads 212 this at least one nozzle bar 213 composed. Preferably, an entire work area corresponds to a double row of print heads 212 seen in the axial direction A the working area of the at least one nozzle beam 213 ,
  • Preferably, the at least one nozzle bar 213 in the circumferential direction with respect to at least a first central cylinder 201 several rows of nozzles on. Preferably, each printhead 212 a plurality of nozzles, which further preferably in a matrix of a plurality of rows in the axial direction A and / or a plurality of columns, preferably in the circumferential direction of the at least one first central cylinder 201 are arranged, wherein such columns are further preferably arranged extending obliquely to the circumferential direction, for example, to increase a resolution of a printed image. Preferably in a direction orthogonal to the axial direction A, in particular in the transport direction along the transport path of the printing substrate 02 and / or in the circumferential direction relative to the at least one central cylinder 201 several rows of printheads 212 , more preferably four double rows, and more preferably eight double rows of printheads 212 arranged one after the other. More preferably, at least in the printing operation in the circumferential direction with respect to the at least one first central cylinder 201 several rows of printheads 212 , more preferably four double rows, and more preferably eight double rows of printheads 212 successively on the at least one first central cylinder 201 arranged aligned.
  • Here are the printheads 212 at least in the printing operation, preferably oriented such that the nozzles of each printhead 212 essentially in the radial direction on the cylinder jacket surface of the at least one first central cylinder 201 point. Deviations from radial directions within a tolerance range of preferably not more than 10 ° and more preferably not more than 5 ° are to be considered essentially radial directions. This means that the at least one on the lateral surface of the at least one first central cylinder 201 aligned printhead 212 with respect to the axis of rotation 207 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 is aligned. This radial direction is one on the axis of rotation 207 the at least one first central cylinder 201 related radial direction. Each double row of printheads 212 It is preferred to associate and / or assign a printing ink of a specific 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 preferred as a four-color printing unit 211 trained and allows a one-sided four-color printing of the printing substrate 02 , It is also possible to have fewer or more different colors with a printing unit 211 to print, for example, additional spot colors. Preference is then correspondingly more or less printheads 212 and / or double rows of printheads 212 within this corresponding printing unit 211 arranged. In one embodiment, at least in the printing operation, a plurality of rows of printheads 212 , more preferably four double rows, and more preferably eight double rows of printheads 212 arranged in succession on at least one surface of at least one transfer body, for example at least one transfer cylinder and / or at least one transfer belt aligned.
  • The at least one print head 212 works for the production of ink droplets preferably according to the drop-on-demand process, in which ink droplets are generated selectively when 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 process, a droplet deflection after ejection from the corresponding nozzle is not necessary, since it is possible to achieve a target position of the respective ink drop on the moving substrate web 02 with respect to the circumferential direction of the at least one first central cylinder 201 solely by an emission time of the 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 set. By individually controlling each nozzle, ink drops from the at least one printhead are only at selected times and at selected locations 212 on the substrate web 02 transfer. This happens 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 material web 02 and the location of the target area of the respective nozzle with respect to the circumferential angle. This results in a desired printed image, which depends on the control of all nozzles is designed. An ejection of ink droplets from the at least one nozzle of the at least one printhead 212 is preferably carried out as a function of the predetermined by the machine control rotational position of the first drive motor 208 , In this case, those from the machine control to the first drive motor 208 predetermined desired data of the rotational position of the first drive motor 208 preferably in real time in a calculation of data for controlling the nozzles of the at least one printhead 212 included. An adjustment with actual data of the rotational position of the first drive motor 208 is preferably not necessary and preferably does not take place. An exact and constant position of the printing material web 02 relative to the at least one first central cylinder 201 is therefore of great importance for a passport-friendly and / or register-compatible printed image.
  • The nozzles of the at least one printhead 212 are arranged such that a distance between the nozzles and on the cylinder jacket surface of the at least one first central cylinder 201 arranged printing material web 02 at least when arranged in a printing position printhead 212 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 and / or the high accuracy of the predetermined by the machine control and the first drive motor 208 of the first central cylinder 201 processed target data to the rotational position of the first drive motor 208 of the first central cylinder 201 allows a very accurate orientation and / or knowledge of the position of the substrate web 02 relative to the nozzles and their target areas. A drop flight time between the nozzles and the printing material web 02 is for example by a teach-in process and / or by the known distance between the nozzles and the printing material web 02 and a known drop speed known. From the angular position of the at least one first central cylinder 201 and / or the first drive 208 the at least one first central cylinder 201 , the rotational speed of the at least one first central cylinder 201 and the drop flight time is determined an ideal time to eject a respective drop, so that a passer-sized and / or register-compliant imaging of the substrate web 02 is reached.
  • Preferably, at least one sensor designed as a first print image sensor is arranged, more preferably at one point along the transport path of the printing material web 02 after the first printing unit 211 , The at least one first print image sensor is designed, for example, as a first line scan camera or as a first area scan 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 one first print image sensor and a corresponding evaluation unit, for example the higher-level machine control, it is preferable to control all in the circumferential direction of the at least one first central cylinder 201 one behind the other and / or acting printheads 212 and / or double rows of printheads 212 of the first printing unit 211 monitored and regulated. In a first embodiment of the at least one print image sensor, only a first print image sensor is arranged, whose sensor field covers the entire width of the transport path of the printing material web 02 includes. In a second embodiment of the at least one print image sensor, only a first print image sensor is arranged which is orthogonal in the direction A to the direction of the transport path of the printing material web 02 is designed to be movable. 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 include. Preferably, these areas in the direction A are orthogonal to the direction of the transport path of the printing material web 02 arranged offset from one another. Preferably, an entirety of the sensor fields of the plurality of print image sensors comprises a total width of the transport path of the printing material web 02 ,
  • A layer of pixels formed by drops of ink emerging from each first printhead 212 are preferably compared with a layer of pixels which are formed by ink droplets, which consist of a respective second, in the circumferential direction of the at least one first central cylinder 201 after the first printhead 212 lying printhead 212 come. This is preferably done independently of whether these each first and second, in the circumferential direction of the at least one first central cylinder 201 one behind the other and / or acting printheads 212 process a same or a different printing ink. It will be a vote of the layers of different printheads 212 monitored printed images. 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.
  • In a regular printing operation, all printheads are 212 fixedly arranged. This ensures a permanent passport-oriented and / or register-oriented alignment of all nozzles. There are different situations imaginable in which a movement of the printheads 212 necessary is. A first such situation makes a flying Reel change or generally a roll change with gluing process. This is a substrate web 02 by means of an adhesive strip with another printing material web 02 connected. This results in a connection area that covers the entire transport path of the printing material web 02 has to go through. This connecting region has a thickness, ie a smallest dimension, which is greater than a thickness of the printing material web 02 , Essentially, the connection area is as thick as two printing material webs 02 and the tape together. As a result, difficulties may arise if the connection area the space between the nozzles of the print heads 212 and the cylinder jacket surface of the at least one first central cylinder 201 happens. The at least one nozzle bar 213 is therefore in at least one adjustment direction and / or along at least one travel relative to the axis of rotation 207 the at least one first central cylinder 201 movable. 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 and / or cleaning at least one of the printheads 212 , The printheads 212 are preferably individually on the at least one nozzle bar 213 attached and individually from the at least one nozzle bar 213 solvable. This allows individual printheads 212 serviced and / or cleaned and / or replaced.
  • Are several mutually movable nozzle bars 213 arranged, so can at a return of at least one nozzle beam 213 in a printing position minimal malpositions of the nozzle bar 213 occur among each other. An alignment requirement can thus occur, in particular of all printheads 212 a nozzle bar 213 to printheads 212 other nozzle bars 213 , Will be a new and / or reassignable printhead 212 on the at least one nozzle bar 213 attached to the already at least one other printhead 212 is fixed, it does not necessarily result but at most coincidentally an exact matching orientation of this new and / or reordering printhead 212 to the at least one already attached printhead 212 in the circumferential direction and / or in the axial direction A with respect to the at least one first central cylinder 201 , Here, too, can result in a Ausrichtbedarf, in particular a single printhead 212 to other printheads 212 the same nozzle bar 213 and / or other nozzle bars 213 ,
  • At least one sensor preferably detects a position of the target area of at least one new and / or re-arranged printhead 212 relative to a location of the target area of at least one pre-attached printhead 212 , An installation position of the at least one new and / or re-arranged printhead 212 in the circumferential direction with respect to the at least one first central cylinder 201 can be controlled by controlling the nozzles of this printhead 212 compensate, preferably analogous to the already described adaptation of printheads 212 different double rows of printheads 212 , An installation position of the at least one new and / or re-arranged printhead 212 in the axial direction A with respect to the at least one first central cylinder 201 is compensated by means of at least one adjustment mechanism. Preferably, several print heads 212 each have their own adjustment mechanism, more preferably, all print heads 212 each have their own adjustment mechanism.
  • The printing press 01 has at least one supply system 251 for coating compositions, in particular at least one printing ink supply system 251 on. Preferably, several print heads 212 , for example, multiple printheads 212 a common nozzle bar 213 , in particular more or more preferably all print heads 212 each of a double row of printheads 212 a common supply system 251 for coating agents. The at least one supply system 251 and in particular the common supply system 251 for coating compositions preferably has at least one normal stock 252 on, in particular at least a normal stock 252 for coating agents. With the at least one normal stock 252 each is at least one preferred as a color line 253 trained fluid line 253 per printhead 212 connected. In particular, each of at least two printheads is preferred 212 via at least one first fluid line 253 preferably directly with the at least one normal stock 252 connected and / or arranged connectable. The respective first fluid line 253 For example, it may be a flexible conduit, in particular at least one hose. Preferably, the at least one normal stock 252 via at least one supply line 254 and at least one derivative 256 directly or via intermediate components 263 ; 280 ; 285 ; 295 such as at least a second check valve 263 and / or at least one return memory 295 and / or at least one return pump 285 and / or at least one return valve 280 with at least one and preferably at least one same buffer 257 in particular cache 257 connected for the at least one coating agent and / or arranged connectable. Preferred is an extension of an interior of the at least one normal supply 252 in the axial direction A at least as large as 50% of the measured in the axial direction A width of the working area of the at least two print heads 212 having nozzle bar 213 and / or at least 50% of the maximum with the printing press 01 Processable substrate width defined working width of the printing press 01 ,
  • Preferably, the at least one printing unit 200 ; 400 several normal stocks 252 on, more preferably at least one normal stock 252 each printing ink to be printed, for example four normal stocks 252 , This is especially preferred when printheads 212 , which are associated with different inks, are aligned at different angles to a vertical, since in this case different heights of liquid columns result for relevant hydrostatic pressures. This is especially preferred when printheads 212 ; 412 for example, by means of corresponding positioning devices 217 ; 218 ; 219 ; 221 are arranged movable relative to each other, for example, in different positions such as printing positions and / or rest positions. Further preferred are therefore two normal stocks 252 each double row of printheads 212 ; 412 arranged, ie in particular four normal stocks 252 per coating agent. Preferably, the printing unit 200 ; 400 one return memory each 295 each jet beacon 213 and / or per positioning device 217 ; 218 ; 219 ; 221 on, at least indirectly, each with four normal stocks 252 connected is.
  • The normal stock 252 has preferably at least in a printing operation and more preferably permanently on a lying in a narrow tolerance range deviations constant level. This constant level is for example due to an influx of ink and an overflow drain 258 realizable. Under an overflow drain 258 is to understand an outflow, the maximum height of a level, in particular the normal supply 252 sets. It is a regulated overflow drain 258 possible, for example, has at least one level gauge and at least one valve. However, at least one passive overflow drain is preferred 258 arranged. A passive overflow drain 258 is preferably an overflow drain 258 consisting essentially of an opening whose lower edge is arranged at a certain height and thereby determines a maximum level. Preferably, the at least one normal stock 252 and / or the at least one derivative 256 at least one preferably passive overflow drain 258 on, the outflow side preferably directly or via interconnected components 263 . 280 ; 285 ; 295 with the at least one cache 257 is arranged connected and / or connectable, more preferably the at least one same buffer 257 , with which the at least one normal stock 252 also about the at least one supply line 254 is connected and / or arranged connectable. It is preferred along the at least one feed line 254 at least one filter device 259 and / or at least one degassing device 261 and / or at least one damping device 299 arranged for damping pulsations. Preferred is within the at least one supply line 254 at least one preferred as the first check valve 262 trained valve 262 arranged and / or is within the at least one derivative 256 at least one preferred as the second check valve 263 trained valve 263 arranged.
  • It is preferred in the at least one supply line 254 at least a first fluid pump 264 arranged. It is preferably constant coating agent, in particular printing ink in the normal stock 252 promoted, with excess coating agent through the at least one overflow drain 258 is discharged and a height level of the coating agent in the normal stock 252 by an arrangement height of an opening of the overflow drain 258 is fixed. Preferably prevails in the normal stock 252 a controlled and / or regulated normal pressure, which is further preferably controlled and / or regulated relative to an ambient pressure, in particular atmospheric pressure. The constant height level and the controlled and / or regulated normal pressure ensure that a constant pressure within the coating agent at the nozzle openings of the print heads 212 prevails. Thus, constant operating conditions for the printheads 212 ensured. It is preferred in at least a first gas space 266 the at least one normal stock 252 arranged at least one gas volume in which a normal pressure prevails, which is lower than an ambient pressure, on an ejection side of at least one nozzle of the at least one print head 212 prevails. Preferably, therefore, is normal pressure in the normal stock 252 a negative pressure relative to the ambient pressure. This negative pressure is preferably between 4 kPa (four kilopascals), ie 40 mbar (forty millibar) and 6 kPa (six kilopascals), ie 60 mbar (sixty millibar), more preferably between 4.5 kPa (four and a half kilopascals), ie 45 mbar (forty-five millibar) and 5.5 kPa (five and a half kilopascals), that is 55 mbar (fifty-five millibars). It is preferred to set the pressure to a mounting position of the print head 212 respected, because its skew leads to a different height level and thus to a different hydrostatic pressure, which is compensated by this pressure. Preferably, the at least one normal stock extends 252 over at least 50%, more preferably at least 75% and even more preferably at least 90% of a width of the working area of the at least one nozzle bar 213 in the axial direction A and / or the working width of the printing machine 01 ,
  • It is preferred in the at least one derivative 256 at least one return memory 295 arranged, more preferably at a lower level than the at least one normal stock 252 , Along the at least one derivative 256 in particular after the at least one return storage 295 is preferably at least one return pump 285 arranged, for example, coating agent back into the preferably higher intermediate storage 257 to promote. Preferably, but not necessarily, the at least one temporary storage 257 arranged higher than the at least one normal stock 252 , Along the at least one derivative 256 before or preferably after the at least one return pump 285 is preferably at least one return valve 280 arranged. In this way it is ensured that there is a circulation of coating agent within which coating agent can be conveyed by means of pumps and gravity.
  • The at least one first liquid pump is preferred 264 Coating agent, for example ink from the buffer 257 in the normal stock 252 pumped. In the at least one normal stock is preferred 252 at least one and preferably exactly one as the first gas space 266 provided volume arranged. The at least one first gas space 266 is preferred over at least a first gas line 267 with at least one vacuum source 268 ; 276 ; 277 connected and / or connectable angeodnet. The at least one vacuum source 268 ; 276 . 277 is for example at least one gas pump and / or at least one vacuum buffer 276 and / or at least one vacuum regulator 277 educated. In the at least one first gas line 267 is preferably at least one liquid trap 293 , in particular coating agent trap 293 arranged. Preferably prevails in a second gas space 269 of the cache 257 the same normal pressure as in the at least one first gas space 266 the at least one normal stock 252 , This is for example by a connection of the second gas space 269 by means of at least one second gas line 271 with at least one second gas pump and / or the at least one first gas space 266 and / or the at least one first gas pump 268 and / or the at least one vacuum buffer 276 and / or more preferably the at least one vacuum regulator 277 realized. The at least one second gas line 271 preferably has at least one vacuum sensor 294 on.
  • In the at least one return accumulator is preferred 295 at least a third gas space 290 intended. Preferably prevails in the third gas space 290 the return memory 295 the same normal pressure as in the at least one first gas space 266 the at least one normal stock 252 , at least as long as that at least a first valve 262 and that at least a second valve 263 are closed. This is for example by a connection of the third gas space 290 by means of at least one compensation line 286 with the at least one second gas pump and / or the at least one first gas space 266 and / or the at least one first gas pump 268 and / or the at least one vacuum buffer 276 and / or more preferably the at least one vacuum regulator 277 realized. The at least one compensation line 286 preferably has at least one liquid trap 293 , in particular coating agent trap 293 on.
  • The at least one liquid trap 293 , For example, coating agent trap 293 For example, is formed as at least one cavity having an input and an output. The input is preferably at a distance above a lowest point of the cavity. The output is preferably at the level of the entrance or higher. A cross section of the cavity is preferably larger than a cross section of a line connected to the input. Vacuum is preferably applied to the outlet, which draws gas across the entrance and through the cavity. If liquid is sucked in, it settles preferentially by gravity at the lowest point of the cavity and is not conveyed into the vacuum line connected to the outlet. By means of a sensor and / or manually, for example optically, it can be checked whether liquid is at the lowest point of the cavity and has to be removed. Removal may be manual or automated by means of a closable and / or outlet connected to a pump, for example at the lowest point of the cavity.
  • At least one vacuum pump is preferred 268 arranged with the at least one vacuum supply line 278 the at least one vacuum buffer 276 connected is. The at least one vacuum buffer 276 is preferred over at least one degassing line 279 with the at least one degassing device 261 connected and / or arranged connectable. The at least one vacuum buffer 276 is preferred via at least one vacuum line 281 with at least one vacuum regulator 277 connected and / or arranged connectable, preferably via at least one Zuluftfilter 292 connected to an environment and / or connectable. At least one standard pressure line 282 preferably connects the at least one vacuum regulator 277 with at least one pressure regulator 283 , The vacuum regulator 277 serves preferably to the pressure in the at least one normal pressure line 282 Adjust to the normal pressure, in particular by admixing, for example, under ambient pressure standing ambient air to that from the vacuum buffer 276 originating air. The at least one pressure regulator 283 is preferred with at least one compressed air source 284 , For example, at least one air pump 284 or with an atmosphere connection 284 connected arranged. Preferably, the at least one pressure regulator 283 about the at least one first gas line 267 with the at least one first gas space 266 the at least one normal stock 252 connected and / or arranged connectable. This can be done by means of the pressure regulator 283 either the normal pressure or an overpressure in the first gas line 267 and thus in the first gas space 266 of the normal stock 252 be generated. Any occurring gas volumes, which are included in the filling of the system with coating agent, are preferably by means of respective compensation lines 286 can be pumped and / or acted upon at least with the respective normal pressure. Such gas volumes may, for example, in a region of the at least one check valve 263 and / or in particular in the region of the at least one return accumulator 295 occur.
  • Preferably, the at least one temporary storage 257 with at least one buffer memory 272 connected, more preferably via at least one supply line 273 , In an exemplary first embodiment of the supply line 273 is the at least one cache 257 via at least one suction line 273 trained supply line 273 with the at least one buffer memory 272 connected. Then, for example, along the at least one suction line 273 no fluid pump or no pump between the at least one buffer memory 272 and the at least one cache 257 arranged and / or prevails in the buffer memory 272 Ambient pressure and / or is between the buffer memory 272 and the cache 257 no pump is arranged but ink is released from the buffer by the relative negative pressure 272 in the cache 257 promoted. Thus, particularly constant conditions in the cache can be 257 and in the normal stock 252 ensure, especially with regard to normal pressure. In a preferred exemplary second embodiment of the supply line 273 indicates the supply line 273 at least one supply pump 296 and / or preferably at least one flow measuring device 297 and / or preferably at least one supply valve 298 and / or local supply valve 298 on. For example, a supply line 273 after a supply valve 298 be divided into several sub-lines that are connected to different pressure units 200 ; 400 connected and by means of local supply valves 2968 are formed independently lockable. (In 8b a dashed line indicates such a possibility.)
  • The cache 272 is for example with a replaceable reservoir 274 connected and / or connectable, for example, the supply of other printheads 212 and / or other nozzle bars 213 and / or other printing units 200 ; 400 and / or other printing presses 01 can serve. Preferably, the at least one buffer memory 272 via at least one second supply line 273 , for example, suction line 273 with at least one additional cache 257 connected and / or connectable, the at least one further, for example, second printing unit 200 ; 400 the printing press 01 assigned. For example, along at least one supply line 288 between the at least one storage container 274 and the at least one buffer memory 272 at least one supply pump 289 and at least one supply valve 291 arranged. For example, the at least one buffer memory 272 at least one overflow 287 on, can drain over the excess in an emergency coating agent, for example, in a malfunction of at least one storage pump 289 and / or the at least one supply valve 291 , This prevents in particular that the normal pressure could be adversely affected. In an exemplary embodiment eliminates the at least one buffer memory 272 and instead is in place of the buffer memory 272 directly the reservoir 274 arranged, in which case, for example, the supply pump 289 omitted and a supply of coating agent through the supply pump 296 is made.
  • Preference is given to each printing unit 200 ; 400 and coating agent in each case at least one, and more preferably exactly one temporary storage 257 arranged. At least one normal reserve is preferred for each printing unit and coating agent 252 and are more preferably exactly four normal stocks 252 arranged. Each printing unit and coating agent is preferably at least one and more preferably exactly one return storage 295 arranged. For example, in a four-color machine with two printing units 200 ; 400 eight buffers 257 and thirty-two normal supplies 252 and eight flyback memories 295 arranged. Preference is given to each printing unit 200 ; 400 and more preferably per printing press 01 exactly one vacuum source 268 arranged. Preference is given to each coating agent, in particular printing ink for the entire printing press 01 exactly one storage container 274 and / or exactly one buffer memory 272 arranged.
  • Preferably, the at least one temporary storage 257 stationary relative to a frame 231 the respective printing unit 200 ; 400 , Preferably, the at least one normal stock 252 together with the at least one printhead 212 ; 412 and / or the at least one nozzle bar 213 ; 413 by means of a corresponding positioning device 217 ; 218 ; 219 ; 221 arranged movably and / or is at least one return supply 295 together with the at least one printhead 212 ; 412 and / or the at least one normal stock 252 and / or the at least one nozzle bar 213 ; 413 by means of a corresponding positioning device 217 ; 218 ; 219 ; 221 movably arranged. As a result, in particular constant conditions of hydrostatic pressures are ensured, for example within the at least one normal supply 257 and / or within the at least one printhead 212 ; 412 ,
  • Preferably allows the printing press 01 a method for cleaning at least one nozzle of at least two as inkjet printheads 212 trained printheads 212 the printing press 01 , where the printing press 01 the at least one supply system 251 that has the at least one normal stock 252 preferably for the at least one coating agent and the at least one temporary storage 257 preferably for the at least one coating agent, and wherein each of the at least two print heads 212 ; 412 via at least one first fluid line 253 preferably directly with the at least one normal stock 252 connected and / or arranged connectable and wherein the at least one normal stock 252 over the at least one supply line 254 and the at least one derivative 256 with the at least one preferably identical buffer 257 is connected and wherein first each of the at least one supply line 254 preferably by means of the at least one first check valve 262 and each of the at least one derivative 256 preferably by means of the at least one second shut-off valve 263 is closed and followed by a pressure within the within the at least one normal supply 252 arranged gas volume preferably by means of at least the at least one first gas pump 268 and / or by means of at least the at least one compressed air source 284 is increased and thereby coating agent and in particular printing ink through the at least one nozzle of the at least two printheads 212 promoted and preferably ejected.
  • Preferably, several print heads 212 , for example, multiple printheads 212 a common nozzle bar 213 , in particular more or more preferably all print heads 212 each of a double row of printheads 212 a common power supply system. Preferably, at least one common power line of the power supply extends within the respective at least one nozzle beam over at least 50%, more preferably at least 75% and even more preferably at least 90% of a width of the working area of the respective at least one nozzle bar 213 in the axial direction A and / or the working width of the printing machine 01 , Preferably, each printhead 212 this respective at least one nozzle bar 213 in each case at least one own voltage line, which is connected to this common power line of the power supply. Preferably, each printhead 212 this respective at least one nozzle bar 213 in each case at least one own data line, which is connected to a computing unit, which with respect to the axial direction A outside the working area of the respective at least one nozzle bar 213 and / or with respect to the axial direction A outside each for substrate 02 provided transport path of the printing press 01 is arranged. Thus, so at least along a extending in the axial direction A portion of the nozzle beam 213 at least one data line per printhead 212 this at least one nozzle bar 213 parallel to each other.
  • The printing press 01 preferably has at least one printing unit 200 ; 400 on, wherein the at least one printing unit 200 ; 400 at least one, preferably having an ejection direction, as the inkjet printhead 212 ; 412 trained printhead 212 ; 412 and preferably a plurality of, preferably each having an ejection direction, as inkjet printheads 212 ; 412 trained printheads 212 ; 412 and preferably at least one about a respective axis of rotation 207 ; 407 rotatable printing material guide 201 ; 401 by means of which preferably at least one preferred for web-shaped printing material 02 provided transport path is at least partially fixed and / or fixable. Preferably, the at least one nozzle, and more preferably each nozzle, each has a relative to the nozzle and the nozzle having the printhead 212 clearly defined ejection direction. Preferred are ejection directions of nozzles of a common printhead 212 aligned parallel to each other. The ejection direction of at least one nozzle of the at least one print head is preferred 212 at least when in a printing position printhead 212 on a lateral surface of the at least one Bedruckstoffleitelements 201 ; 401 aligned.
  • This is preferably at least one printing material guide element 201 ; 401 within the at least one printing unit 200 ; 400 arranged and / or that is at least one Bedruckstoffleitelement 201 ; 401 as at least one web guide roll and / or a guide roller 203 ; 214 ; 312 ; 403 ; 414 and / or as at least one pressure central cylinder 201 ; 401 and / or formed as at least one transmission body.
  • Preferably, the at least one print head 212 ; 412 with at least one positioning device 217 ; 218 ; 219 ; 221 connected and / or connectable. More preferably, the at least one printhead 212 permanently with the at least one positioning device 217 ; 218 ; 219 ; 221 connected and only for assembly and / or disassembly purposes and / or replacement of the at least one printhead 212 from the at least one positioning device 217 ; 218 ; 219 ; 221 separable. Preferably, the at least one printing unit 200 ; 400 at least two, and more preferably at least four nozzle beam 213 ; 413 on, each at least two printheads 212 ; 412 exhibit. Each nozzle bar is preferred 213 ; 413 with at least one positioning device 217 ; 218 ; 219 ; 221 connected and / or connectable and is in this way at the same time each corresponding printhead 212 ; 412 with at least one positioning device 217 ; 218 ; 219 ; 221 connected and / or connectable. Preferably, the at least two, in particular at least four nozzle bars 213 ; 413 by means of a respective positioning device 217 ; 218 ; 219 ; 221 arranged movably along a respective, for example, linear travel. At least one of at least two print heads is preferred 212 more preferably by means of a positioning device associated with it 217 optionally can be arranged at least either in a printing position assigned to it or can be arranged in at least one rest position assigned to it. More preferably, each of at least four printheads 212 ; 412 more preferably by means of a positioning device associated with it 217 ; 218 ; 219 ; 221 optionally can be arranged at least either in a printing position assigned to it or can be arranged in at least one rest position assigned to it.
  • Preferably, the at least one print head 212 in particular by means of at least one positioning device 217 ; 218 ; 219 ; 221 can be arranged in at least one printing position. Preferably, a printing head arranged in its printing position is characterized 212 characterized in that at least one nozzle of the at least one print head 212 from a designated transport path for printing material 02 and / or from the printing material 02 and / or from a transfer body and / or from the Bedruckstoffleitelement 201 ; 401 has a distance which is at most 5 mm and more preferably at most 1.5 mm and / or which is preferably at least 0.5 mm and more preferably at least 1 mm.
  • Preferably, a printing head arranged in its printing position is characterized 212 characterized in that a majority of all nozzles of the at least one printhead 212 have a respective ejection direction, which of a surface normal of the nozzle next surface element of the proposed transport path for printing material 02 and / or from a surface normal of a surface element of the printing substrate which is closest to the respective nozzle 02 and / or of a surface normal of a surface element of a transfer body which is closest to the respective nozzle and / or of a surface normal of a surface element of a printing material guide element which is closest to the respective nozzle 201 ; 401 differs by at most 10 ° and more preferably by at most 6 ° and even more preferably by at most 3 °.
  • Preferably, a printing head arranged in its printing position is characterized 212 characterized in that a majority of all nozzles of the at least one printhead 212 have a respective ejection direction that deviates from a vertical direction by at most 30 °. At least when arranged in the printing position printhead is preferred 212 an ejection direction of at least one and preferably each nozzle of at least this printhead 212 on at least one Bedruckstoffleitelement 201 ; 401 and / or arranged aligned at least one transfer body. At least when arranged in the printing position printhead is preferred 212 at least one nozzle of this printhead 212 arranged in a provided for a printing operation of this at least one nozzle position.
  • Preferably, the at least one print head 212 in particular by means of the at least one positioning device 217 ; 218 ; 219 ; 221 in at least one rest position and more preferably in at least two different rest positions can be arranged. The at least one rest position is formed, for example, as at least one maintenance position and / or as at least one mounting position. A maintenance position is preferably a position in which the at least one print head 212 can be maintained, for example, cleaned and / or aligned and / or stored in a particular secured against contamination and / or drying out state, especially without the at least one print head 212 from the printing press 01 and / or the at least one printing unit 200 ; 400 refer to. A mounting position is preferably a position in which the at least one print head 212 from the printing press 01 and / or the at least one printing unit 200 ; 400 and / or the at least one nozzle bar 213 removed and / or in the printing press 01 and / or the at least one printing unit 200 ; 400 and / or the at least one nozzle bar 213 can be used. In particular, in the mounting position of an operator, more space is preferably available to the at least one print head 212 to arrive, while in the maintenance position preferably only enough space is available to internal, especially automatically running processes within the printing press 01 to carry out.
  • Preferably, respective rest positions of the print heads are characterized 212 regardless of their training as a maintenance position and / or mounting position characterized in that different printheads 212 in their respective rest positions at least partially different distances to the intended transport path for substrate 02 and / or to a printing material 02 and / or to a transfer body and / or to the Bedruckstoffleitelement 201 ; 401 , in particular central cylinder 201 ; 401 exhibit. Preferably, each nozzle of the at least one arranged in its maintenance position printhead 212 ; 412 from one of the respective ones Nozzle next surface element of the intended transport path for printing material 02 and / or from one of the respective nozzle next surface element of the printing substrate 02 and / or from one of the respective nozzle next surface element of a transfer body and / or of a Bedruckstoffleitelement 201 ; 401 , in particular central cylinder 201 ; 401 a distance of at least 10 cm and more preferably at least 25 cm.
  • Preference is given to respective maintenance positions of the printheads 212 characterized in that different, arranged in their respective maintenance positions print heads 212 have different distances to each other, as in their respective printing positions and / or in their respective mounting positions.
  • Preferably, respective mounting positions of the print heads are characterized 212 characterized in that different, arranged in their respective mounting positions print heads 212 have different distances to each other, as in their respective printing positions and / or in their respective maintenance positions. Preferably, each nozzle of the at least one arranged in its mounting position printhead 212 ; 412 from one of the respective nozzle next surface element of the intended transport path for substrate 02 and / or from one of the respective nozzle next surface element of the printing substrate 02 and / or from one of the respective nozzle next surface element of a transfer body and / or of a Bedruckstoffleitelement 201 ; 401 , in particular central cylinder 201 ; 401 a distance of at least 20 cm and more preferably at least 35 cm. These distances are preferably measured in the axial projection plane.
  • In a first possible embodiment, the at least one positioning device 217 ; 218 . 219 ; 221 at least one as a lever arm 224 trained positioning guide 224 , For example, several, in particular four preferably as lever arms 224 trained positioning guides 224 and, for example, one each preferably as a lever arm 224 trained positioning guide 224 per movable nozzle bar 213 and / or per movable printhead 212 on. For example, and in particular if the at least one positioning guide 224 as at least a lever arm 224 is formed, is the travel of the at least one printhead 212 ; 412 designed as at least a circular arc. For example, a pivot axis 227 the at least one lever arm 224 arranged parallel to the axial direction A. This ensures that movements of the at least one lever arm 224 and the at least one printhead arranged thereon, for example 212 and / or nozzle bar 213 run only in a plane which is defined by a surface normal, which is arranged parallel to the axial direction A, in particular in the axial projection plane. For example, at least two positioning devices 217 ; 218 mutually different pivot axes 227 on. For example, additionally or alternatively, at least two positioning devices have a common pivot axis 227 on.
  • For example, with regard to the first possible embodiment, the at least one positioning device is distinguished 217 ; 218 . 219 ; 221 respective maintenance positions of the printheads 212 characterized in that when arranged in its respective maintenance position printhead 212 all nozzles of this printhead 212 Have ejection directions, which point to a tolerance range of preferably at most 20 ° and more preferably at most 12 ° and even more preferably at most 8 ° in a vertical direction, in particular a vertical downward direction. In particular, a direction preferably deviates as arithmetic means from all ejection directions of all the nozzles of the at least one printhead arranged in its maintenance position 212 ; 412 having nozzle bar 213 is set from the vertical direction by at most 12 °, more preferably at most 8 ° and even more preferably at most 4 °.
  • For example, with regard to the first possible embodiment, the at least one positioning device is distinguished 217 ; 218 . 219 ; 221 respective maintenance positions of the printheads 212 in that nozzles of different printheads arranged in their respective maintenance positions 212 Have ejection directions at different angles to a respective nearest surface element of the intended transport path for substrate 02 and / or the Bahnleitelements 201 ; 401 and / or the transfer body and / or the printing substrate 02 more preferably, this difference in the angle is at least 2 °, preferably at least 6 ° and more preferably at least 10 °. Preferably, a plane in which this angle is measured, determined by a surface normal, which is parallel to the axial direction A or deviates from this axial direction A by at most 2 °. This plane is preferably called the axial projection plane.
  • For example, with regard to the first possible embodiment, the at least one positioning device is distinguished 217 ; 218 . 219 ; 221 respective mounting positions of the printheads 212 in that nozzles of different printheads arranged in their respective mounting positions 212 Have ejection directions at different angles to a respective nearest surface element of the intended transport path for substrate 02 and / or the Bahnleitelements 201 ; 401 and / or the transfer body and / or the printing substrate 02 more preferably, this difference in the angle is at least 2 °, preferably at least 6 ° and more preferably at least 10 °. Preferably, a plane in which this angle is measured, determined by a surface normal, which is parallel to the axial direction A or deviates from this axial direction A by at most 2 °. More preferably, this plane is the axial projection plane.
  • For example, with regard to the first possible embodiment, the at least one positioning device is distinguished 217 ; 218 . 219 ; 221 respective mounting positions of the printheads 212 characterized in that when arranged in its respective mounting position printhead 212 all nozzles of this printhead 212 Having ejection directions that differ by preferably at least 4 ° and more preferably at least 6 ° and even more preferably at least 8 ° from a vertical direction, in particular a vertically downward direction. In particular, a direction preferably deviates as arithmetic means from all ejection directions of all the nozzles of the at least one printhead arranged in its mounting position 212 ; 412 having nozzle bar 213 is fixed, from a vertical direction by at least 4 °, more preferably at least 6 ° and even more preferably at least 8 °.
  • For example, with regard to the first possible embodiment, the at least one positioning device is distinguished 217 ; 218 . 219 ; 221 respective mounting positions of the printheads 212 characterized in that when arranged in its respective mounting position printhead 212 a direction indicative of the arithmetic mean of all ejection directions of all the nozzles of the at least one printhead arranged in its mounting position 212 ; 412 having nozzle bar 213 is set, from a surface normal of the respective nozzle next surface element of the intended transport path for substrate 02 and / or from a surface normal of a surface element of the printing substrate which is closest to the respective nozzle 02 and / or from a surface normal of a surface element of a transfer body and / or a printing material guide element which is closest to the respective nozzle 201 ; 401 differs by at least 20 ° and more preferably by at least 30 °.
  • For example, with regard to the first possible embodiment, the at least one positioning device is distinguished 217 ; 218 . 219 ; 221 at least one mounting position of at least one print head 212 and preferably all printheads 212 characterized in that in the axial projection plane and / or in a plane which is defined by a surface normal, which is parallel to the axial direction A or deviates from this axial direction A by at most 2 °, ejection directions of all nozzles arranged in its printing position printhead 212 have a horizontal component which is exactly opposite to a horizontal component, the ejection directions of all the nozzles of this arranged in its mounting position printhead 212 exhibit. In particular, it is preferred that respective printheads 212 be transferred by at least one pivotal movement from its printing position on its maintenance position in its mounting position.
  • In a second and preferred embodiment of the at least one positioning device 217 ; 218 . 219 ; 221 has the at least one positioning device 217 ; 218 . 219 ; 221 at least one linear, preferably as a rail 224 trained positioning guide 224 and more preferably several, in particular four, preferably as rails 224 trained positioning guides 224 and even more preferably in each case at least one, preferably as a rail 224 trained positioning guide 224 per movable nozzle bar 213 and / or per movable printhead 212 on. Further preferred are each nozzle bar 213 two as a rail 224 trained positioning guides 224 arranged, in particular one rail 224 each axial end of the at least one Bedruckstoffleitelements 201 ; 401 So at least eight rails 224 per printing unit 200 ; 400 , Preferably, and in particular if the at least one positioning guide 224 as at least one rail 224 is formed, is the travel of the at least one printhead 212 ; 412 formed linear.
  • Thus, a printing press is preferred 01 that at least one printing unit 200 ; 400 comprising at least two, more preferably at least three, and even more preferably at least four printheads 412 . 212 and at least one about an axis of rotation 207 ; 407 rotatable printing material guide 201 ; 401 wherein each of the at least two, preferably at least three, and more preferably at least four printheads 212 ; 412 by means of a respective, at least this printhead 212 ; 412 associated positioning device 217 ; 218 ; 219 ; 221 is movably arranged along a respective linear travel. More preferably, the linear adjustment paths in respective actuating directions, which are in pairs by at least 10 °, more preferably at least 15 ° and independent of the lower Limit by at most 150 °, more preferably at most 120 °, even more preferably at most 90 ° and even more preferably at most 60 ° differ. Preferably, all positioning directions differ from positioning devices 217 ; 218 ; 219 ; 221 a same printing unit 200 ; 400 in all possible pairwise comparisons of at least 10 °, more preferably at least 15 ° and independent of the lower limit by at most 150 °, more preferably at most 120 °, even more preferably at most 90 ° and even more preferably at most 60 °. Positioning directions of printheads preferably differ 212 ; 412 , the adjacent positioning devices 217 ; 218 . 219 ; 221 are at least 10 °, more preferably at least 15 ° and regardless of the lower limit of at most 60 °, more preferably at most 45 °, even more preferably at most 30 ° and even more preferably at most 20 °. It is preferably ensured that movements of the at least one print head 212 and / or nozzle bar 213 run only in a plane which is defined by a surface normal, which is arranged parallel to the axial direction A, in particular in the axial projection plane.
  • Preferably, each of the at least two, preferably at least three and more preferably at least four printheads 212 ; 412 by means of the respective positioning device 217 ; 218 ; 219 ; 221 optionally arrangeable at least either in a printing position assigned to it and at least one maintenance position assigned to it, wherein in the at least one maintenance position of a first print head 212 ; 412 the at least two, preferably at least three, and more preferably at least four printheads 212 ; 412 at least one maintenance device 222 at least a first nozzle of the at least one first printhead 212 ; 412 assigned and / or can be assigned. That in the foregoing and in the following regarding the at least one maintenance device 222 Described is preferred for each maintenance device 222 , Especially in the case of two, three or four maintenance devices per printing unit 200 ; 400 , The at least one maintenance device 222 is preferably arranged to be movable along at least one provision path between at least one parking position and at least one insertion position, in particular by means of at least one feed device 223 , For multiple maintenance devices 222 is preferred for each maintenance device 222 assigned a separate provision path, a private parking position and a separate deployment position. An optional component of the respective provision path of the at least one maintenance device 222 in one through the axis of rotation 207 ; 407 of the at least one rotatable Bedruckstoffleitelements 201 ; 401 fixed axial direction A is preferably at most 50% of a measured in the axial direction A width of a working area of the at least one print head 212 having nozzle bar 213 and / or at most 50% one by a maximum with the printing press 01 Processable substrate width defined working width of the printing press 01 ,
  • The actuating directions of the linear travel paths are preferably each orthogonal and in particular radial to the axis of rotation 207 ; 407 of the at least one rotatable Bedruckstoffleitelements 201 ; 401 aligned. All printheads are preferred 212 ; 412 arranged in their printing positions and their rest positions, in particular maintenance positions and / or mounting positions such that their respective nozzles always have a respective same orientation with respect to their ejection direction. Preferably, the printheads 212 ; 412 linear travels on.
  • The at least one positioning device 217 ; 218 . 219 ; 221 preferably has at least one positioning drive 226 and more preferably a plurality of positioning drives 226 and even more preferably each a positioning drive 226 per movable nozzle bar 213 on. For example, every positioning guide 224 one positioning drive each 226 assigned. The at least one positioning drive 226 is for example as at least one hydraulic cylinder 226 and / or as at least one pneumatic cylinder 226 and / or preferred as at least one electric motor 226 educated. Preferably, the at least one positioning drive 226 arranged such that it has the at least one print head 212 move either in its printing position or its maintenance position or its mounting position and more preferably can hold there. Preferably, the at least one positioning drive 226 as at least one electric motor 226 , For example, as at least one stepper motor 226 formed and / or connected to at least one threaded spindle. The at least one threaded spindle is preferably in engagement with at least one spindle nut which is in engagement with the respective nozzle bar 213 connected is.
  • At least four positioning devices are preferred 217 ; 218 ; 219 ; 221 arranged, by means of which in each case at least one nozzle bar 213 and / or in particular more each one of a same ink associated printheads 212 are designed to be movable together. In particular, this can provide configurations in which the printheads 212 at least one nozzle bar 213 and / or at least one printing ink are arranged in their printing position, while the print heads 212 at least one other nozzle bar 213 and / or another ink in a rest position, such as a maintenance position are arranged. This allows, for example, all printheads 212 an ink, such as black, while all printheads 212 other inks are kept in a maintenance position and there protected, for example by suitable means from drying out and / or cleaned.
  • At least one first locking element is preferably arranged, for example at least one pressure stop. By means of at least one first locking element is preferably the at least one print head 212 detectable in its printing position, for example by the at least one positioning drive 226 , in particular pneumatic cylinder 226 and / or electric motor 226 , the at least one printhead 212 and / or the at least one printhead 212 having nozzle bars 213 pulls against the at least one pressure stop and / or pressed. This ensures that the printing position is reproducible and precisely defined.
  • Preferably, at least one second locking element is arranged, for example at least one assembly stop. By means of the at least one second locking element is preferably the at least one print head 212 detectable in its mounting position, for example by the at least one positioning drive 226 , in particular pneumatic cylinder 226 and / or electric motor 226 , the at least one printhead 212 and / or the at least one printhead 212 having nozzle bars 213 pulls against the at least one mounting stop and / or pressed. This ensures that the mounting position is reproducible and precisely defined.
  • Preferably, at least a third locking element is arranged, for example at least one maintenance stop. By means of the at least one third locking element is preferably the at least one print head 212 detectable in its maintenance position, for example by the at least one positioning drive 226 , in particular pneumatic cylinder 226 and / or electric motor 226 , the at least one printhead 212 and / or the at least one printhead 212 having nozzle bars 213 pulls against the at least one maintenance stop and / or pressed. This ensures that the maintenance position is reproducible and precisely defined.
  • At least one locking element, preferably the at least one third locking element and / or at least one locking element arranged between two locking elements and / or at least one maintenance stop is preferably designed to be movable in order to move between extreme positions of a travel of the at least one print head 212 and / or the at least one nozzle bar 213 to allow in particular between printing position and mounting position. For example, at least one maintenance device 222 as at least one movable stop, in particular designed as a maintenance stop.
  • In the at least one maintenance position, at least one maintenance device is preferred 222 at least one nozzle of the at least one print head 212 ; 412 assigned and / or assignable and is more preferably the at least one maintenance device 222 at least one nozzle of the at least one print head 212 ; 412 at least partially arranged opposite to a respective ejection direction of the at least one nozzle and / or arranged.
  • A position of these respective at least one nozzle preferably differs when the print head is arranged in the at least one printing position 212 and a layer of said respective at least one nozzle at the printhead arranged in the at least one maintenance position and / or mounting position 212 on through the axis of rotation 207 ; 407 of at least one, preferably as a central cylinder 201 formed Bedruckstoffleitelements 201 ; 401 fixed axial direction A relative to at most 50%, more preferably at most 20% and even more preferably at most 10% and even more preferably at most 2% of a measured in the axial direction A width of a working area of the at least one print head 212 ; 412 having nozzle bar 213 and / or at most 50% and more preferably at most 20%, and even more preferably at most 10%, and even more preferably at most 2% by maximum with the printing machine 01 Processable substrate width defined working width of the printing press 01 ,
  • Preference is given to arranged in the at least one maintenance position printhead 212 at least one maintenance device 222 between at least one nozzle of the at least one printhead 212 ; 412 and one of these at least one nozzle next area of the for the substrate 02 provided transport path can be arranged and / or arranged and / or is arranged in at least one maintenance position printhead 212 at least one maintenance device 222 between at least one nozzle of the at least one printhead 212 and one of these at least one nozzle next region of a transfer body can be arranged and / or arranged.
  • The at least one maintenance device 222 preferably has in each spatial direction an extension which is greater than 3 mm, more preferably greater than 10 mm. Preferably, the at least one maintenance device 222 in the axial direction A has an extent which is at least as large as the working range of the at least one nozzle beam 213 in the axial direction A. Preferably, the at least one maintenance device 222 in a transport direction of the printing material 02 an extent that is at least as large as the working area of the at least one nozzle bar 213 in the transport direction of the substrate 02 , As a result, preferably all nozzles of all printheads 212 the at least one nozzle bar 213 to be maintained at the same time. For example, by edge areas and / or housing result even larger dimensions in each direction.
  • The at least one nozzle bar 213 is preferably completely independent of such components of the printing press 01 movable, which is the printing material web 02 touching and / or the intended transport of the printing material 02 are arranged tangentially. Thus, a cleaning and / or maintenance can be made without the substrate web 02 to influence and in particular without the printing substrate 02 from the printing press 01 to have to remove.
  • Preferably, the at least one maintenance device 222 at least orthogonal to the axial direction A movable. A provision path of the at least one maintenance device is preferred 222 by at least one feeder 223 established. Preferably, the at least one feed device 223 as at least a management system 223 educated. Preferably, the at least one maintenance device 222 arranged movably along the at least one provision path between at least one parking position and at least one insertion position. Preferably, the further preferably by the at least one feed device 223 fixed provision path of the at least one maintenance device 222 no component in the axial direction A, which is greater than at most 50%, more preferably at most 20%, even more preferably at most 10% and even more preferably at most 2% of the measured in the axial direction A width of the working area of the at least one printhead 212 having nozzle bar 213 and / or at most 50%, more preferably at most 20%, even more preferably at most 10% and even more preferably at most 2% by the maximum with the printing press 01 Processable substrate width defined working width of the printing press 01 , This means that an optional component of the provision path of the at least one maintenance device 222 in the axial direction A preferably at most 50%, more preferably at most 20%, even more preferably at most 10% and even more preferably at most 2% of the measured in the axial direction A width of the working area of the at least one print head 212 having nozzle bar 213 and / or at most 50%, more preferably at most 20%, even more preferably at most 10% and even more preferably at most 2% by the maximum with the printing press 01 Processable substrate width defined working width of the printing press 01 is.
  • Preferably, therefore, a distance of only an optionally existing axial movement of the at least one maintenance device 222 if it is present at most 50%, more preferably at most 20%, even more preferably at most 10% and even more preferably at most 2% of the measured in the axial direction A width of the working area of the at least one print head 212 ; 412 having nozzle bar 213 and / or at most 50%, more preferably at most 20%, even more preferably at most 10% and even more preferably at most 2% by the maximum with the printing press 01 Processable substrate width defined working width of the printing press 01 , More preferably, the at least one maintenance device 222 exclusively orthogonal to the axial direction A movable. In particular, the distance of a movement is a length of a path traveled thereby, and in this case, in particular, only the length of a component of the path to be covered or traveled in the axial direction A, if such a component is present.
  • A different position of the at least one maintenance device relative to the axial direction A preferably distinguishes 222 in the parking position of a reference to the axial direction A provided position of the at least one maintenance device 222 in its use position by at most 50%, more preferably at most 20%, even more preferably at most 10% and even more preferably at most 2% of a measured in the axial direction A width of a working area of the at least one print head 212 having nozzle bar 213 and / or at most 50%, more preferably at most 20%, even more preferably at most 10% and even more preferably at most 2% by maximum with the printing press 01 Processable substrate width defined working width of the printing press 01 ,
  • Preferably, each service device 222 in each case at least one own feeder 223 on. Preferably, the at least one feed device 223 at least one feed drive 229 and at least one traction means 228 and / or pushing means 228 on. In one embodiment, the at least one feed drive 229 fixed to a frame 231 the at least one printing unit 200 ; 400 arranged and that is at least one traction means 228 and / or pushing means 228 with the at least one maintenance device 222 connected and relative to the frame 231 the at least one printing unit 200 ; 400 designed to be movable, for example as a chain 228 , In an alternative embodiment, the at least one feed drive 229 in particular together with the at least one maintenance device 222 movably arranged and that is at least one traction means 228 and / or pushing means 228 fixedly arranged and, for example, as at least one rail 228 and / or rack 228 educated. Preferably, the at least one feed device 223 at least one rotatable Threaded spindle, with at least one of the respective maintenance device 222 mounted spindle nut engages us, for example, by means of at least one preferably as a stepping motor 229 trained feed drive 229 is rotatably arranged.
  • At least two maintenance devices are preferred 222 in particular by means of their respective feeding device 223 different of the at least two, in particular at least four print heads 212 ; 412 assigned and / or can be assigned, at least partially arranged one above the other at least in their respective parking positions. More preferably, these are at least two maintenance devices 222 in particular by means of their respective feeding device 223 different of the at least two, in particular at least four print heads 212 ; 412 assigned and / or can be assigned, at least in their use positions in relation to the axial direction A orthogonal direction offset relative to each other and / or arranged at a distance. In a preferred embodiment, there are four nozzle bars 213 ; 413 arranged, each by means of a respective positioning device 217 ; 218 ; 219 ; 221 are arranged movable from their printing position in a respective linear setting direction. Furthermore, four are preferred as cleaning devices 222 trained maintenance devices 222 arranged and individually by means of respective feeders 223 movable between parking position and deployment position. The respective feeders 223 preferably each have two on opposite sides of the frame 231 arranged rails 228 on. The respective feeders 223 each preferably have at least one feed drive 229 or two on opposite sides of the rack 231 arranged feed drives 229 on. The maintenance devices 222 are preferably arranged symmetrically about a plane of symmetry, which is the axis of rotation 207 ; 407 the at least one Bedruckstoffleitelements 201 ; 401 completely contains. Preferably, the four provision paths are horizontal and at a total of two different heights. For example, the maintenance devices 222 opposite the rails assigned to them 228 arranged elevated.
  • Preferably, the respective mounting positions of two and more preferably all the nozzle bars 213 ; 413 arranged at an equal height and thus different distances away from the corresponding printing positions. The respective maintenance positions of two nozzle bars are preferred 213 ; 413 arranged at a first common height, which differs from a second common height, on which the respective maintenance positions of the other two nozzle bars 213 ; 214 are arranged. These heights, for example, differ by at least five centimeters. In this way, there is enough space for all maintenance devices 222 present in their respective deployment positions, since these deployment positions differ in height and therefore no collision of any of the various maintenance devices 222 required volumes is achieved.
  • Preference is given to the at least one print head 212 and more preferably, each printhead 212 assigned a unique maintenance item. If the at least one maintenance device 222 is arranged in its use position, it serves for example as a third locking element, for example in the form of at least one maintenance stop. The corresponding printhead 212 having nozzle bars 213 is at printhead located in its service position 212 preferably by application of a force by means of the at least one positioning drive 226 and / or by gravity, in particular when the positioning drive is switched off 226 pulled against the maintenance device and / or pressed. This clearly defines the maintenance position. Alternatively and preferably, the respective positioning drive 226 in each case at least one stepping motor, by means of the unique positions of the respective maintenance device 222 are controllable. This is enough for a positioning drive 226 and a feed drive 229 to the printheads 212 reproducible and precise in their printing positions, to be able to arrange maintenance positions and mounting positions.
  • Each maintenance position of at least one print head is preferred 212 a unique use position of at least one and preferably exactly one maintenance device 222 assigned. For example, the at least one maintenance device 222 as at least a protective cover 222 formed, more preferably by means of the together with the at least one print head 212 ; 412 a closed volume can be limited. Preferably, the at least one maintenance device 222 additionally or alternatively as at least one cleaning device 222 educated. Preferably, the at least one maintenance device 222 as at least one inspection device 222 educated.
  • By way of example, in a first embodiment of the at least one maintenance device 222 be assigned at least two or at least three use positions and / or at least one parking position in which the respective maintenance device 222 and more preferably optionally different maintenance devices 222 arranged and / or can be arranged. Exemplary are for a total of four nozzle bars 213 a printing unit 200 ; 400 a total of two maintenance facilities 222 each having at least two serving as protective cover and / or usable areas and each of which or at least one has or has an area serving as a cleaning area. The at least one cleaning area can then be successively the nozzle bar to be cleaned 213 assign, whereupon the nozzles of the respective nozzle beam 213 getting cleaned. When all necessary cleaning operations have been completed, the at least one maintenance device can be left 222 arrange so that their two serving as protective covers each areas a nozzle bar 213 are assigned, which then preferably under deactivation of the respective positioning drives 226 on the common maintenance device 222 be dropped off; be discontinued; be deducted; be dismissed. By way of example, each area serving as a protective cover is optionally a different nozzle bar 213 assignable, so that it is possible, individual nozzle bars 213 To arrange in printing position and meanwhile cover other nozzle beams and, for example, to protect against dehydration.
  • However, each nozzle bar is preferred 213 a separate maintenance device 222 assigned and / or assignable and / or each maintenance device 222 assigned exactly one use position and exactly one parking position in which the respective maintenance device 222 arranged and / or can be arranged. Preferred are for a total of four nozzle bars 213 a printing unit 200 ; 400 a total of four maintenance facilities 222 arranged, each one over as a protective cover 222 serving and / or usable area and each as cleaning devices 222 are formed. When all necessary cleaning operations have been completed, the at least one maintenance device can be left 222 arrange so that their as protective covers 222 each serving a nozzle bar 213 are assigned, then, for example, under deactivation of the respective positioning drives 226 on the common maintenance device 222 be discontinued or by stopping the respective positioning drives 226 be kept in their maintenance position. Preferably, for example, a cleaning takes place while the respective maintenance device 222 already as a protective cover 222 serves and / or is a cleaning area and a protective cover 222 serving area identical. By way of example, each is used as a protective cover 222 serving maintenance device 222 optional and independent of other maintenance devices 222 the respective nozzle bar 213 assignable, so that it is possible to use individual nozzle bars 213 to arrange in print position while other nozzle bars 213 cover and, for example, to protect against dehydration.
  • Preferably, the at least one maintenance device 222 as at least one cleaning device 222 educated. Preferably, the at least one cleaning device 222 at least one cleaning module, in particular at least one by means of at least one cleaning drive in and / or against the axial direction A relative to the at least one print head 212 ; 412 movable cleaning module. The at least one cleaning module preferably has at least one contact element which, by means of at least one Anstellantriebs with at least one nozzle surface of the at least one print head 212 ; 412 can be brought into contact, at least if the cleaning device 222 is arranged in its use position and the corresponding print head is arranged in its maintenance position. The at least one cleaning module preferably has at least one on the at least one print head 212 ; 412 and / or on the at least one contact element aligned and / or alignable first dispensing means for detergent, for example, at least one spray nozzle. Preferably, the at least one contact element is designed as at least one wiper.
  • Preferred is at least one print head arranged in the printing position 212 at least one nozzle of this at least one printhead 212 is arranged below the supply path, along which the at least one maintenance device 222 preferably by means of the at least one feed device 223 is preferably arranged movably between the at least one parking position and the at least one insertion position. Preferably, when arranged in the rest position at least one print head 212 this arranged at least one nozzle above this provision path.
  • A travel of at least one printhead 212 is preferably a preferred predetermined path along which the at least one print head 212 is movable, in particular to the at least one print head 212 move between its printing position and its rest position, for example, maintenance position and / or mounting position. Preferably, the travel of the at least one print head 212 no component in the axial direction A which is larger than at most 50%, more preferably at most 20%, still more preferably 10%, and still more preferably at most 2% of the measured in the axial direction A width of the working area of the at least one print head 212 having nozzle bar 213 and / or at most 50%, more preferably at most 20%, even more preferably at most 10% and even more preferably at most 2% by the maximum with the printing press 01 Processable substrate width defined working width of the printing press 01 , This means that an optional component of the at least one print head 212 in the axial direction A preferably at most 50%, more preferably at most 20%, even more preferably at most 10% and even more preferably at most 2% of the measured in the axial direction A width of the working area of the at least one print head 212 having nozzle bar 213 and / or at most 50%, more preferably at most 20%, even more preferably at most 10% and even more preferably at most 2% by the maximum with the printing press 01 Processable substrate width defined working width of the printing press 01 is.
  • At least a first of the at least two print heads is preferred 212 in particular the first printing unit 200 preferably in each case by means of a first positioning device assigned to it 217 optionally in at least one of its associated first printing position can be arranged or arranged in an associated first rest position, in particular maintenance position and / or mounting position, wherein in the at least one first rest position, a rest position of at least a first nozzle of at least a first of the at least two printheads 212 a first rest distance, in particular maintenance distance and / or mounting distance from a first working position of the same at least a first nozzle thereof at least a first of the at least two print heads 212 having in its first printing position. At least a second of the at least two print heads is preferred 212 , in particular this first printing unit 200 preferably in each case by means of a second positioning device assigned to it 218 optionally in at least one of its associated second printing position can be arranged or arranged in an associated second rest position, in particular maintenance position and / or mounting position, wherein in the at least one second rest position, a rest position of at least a second nozzle of at least a second of the at least two printheads 212 a second rest distance, in particular maintenance distance and / or mounting distance from a second working position of the same at least one second nozzle thereof at least a second of the at least two print heads 212 has in the second printing position. Preferably, the first rest distance, in particular maintenance distance and / or mounting distance differs from the second rest distance, in particular maintenance distance and / or mounting distance by at least 2 cm, more preferably at least 5 cm, even more preferably at least 10 cm and even more preferably at least 20 cm. In particular, a rest distance is a distance between a position of a nozzle arranged in its rest position, this nozzle having printhead 212 and a layer of the same nozzle with the same printhead in its printing position 212 ,
  • In particular, the at least one first print head is preferred 212 by means of at least one first positioning device assigned to it 217 optionally can be arranged at least either in a first printing position assigned to it or can be arranged in a first rest position assigned to it, in particular a first maintenance position and / or a first mounting position. In particular, the at least one second print head is preferred 212 by means of at least one second positioning device assigned to it 218 optionally arranged at least either in a second printing position assigned to it or can be arranged in a second rest position assigned to it, in particular a second maintenance position and / or a second mounting position.
  • Preferably, therefore, the printing press 01 and even more preferably, each printing unit 200 ; 400 at least two positioning devices 217 ; 218 ; 219 ; 221 on each of which at least one of the at least two print heads 212 ; is assigned and by means of which the at least two printheads 212 ; 412 each movable and in each case optionally at least either in a respective printing position and / or at least one respective rest position, for example, maintenance position and / or mounting position are formed arranged. More preferably, each printing unit 200 ; 400 at least four such positioning devices 217 ; 218 ; 219 ; 221 on.
  • A preferred minimum distance between the at least one first nozzle of the at least one first printhead is preferably referred to as quiescent distance, in particular maintenance distance and / or assembly distance 212 ; 412 in its first rest position, in particular maintenance position and / or mounting position and the at least one second nozzle of the at least one second print head 212 ; 412 in its second rest position, in particular maintenance position and / or mounting position by at least 2 cm, more preferably at least 5 cm, even more preferably at least 10 cm and even more preferably at least 20 cm larger than a preferably referred to as working distance minimum distance between at least the at least one first nozzle of the at least one first printhead 212 ; 412 in its first printing position and the at least one second nozzle of the at least one second print head 212 ; 412 in its second printing position.
  • For example, an ejection direction distinguishes at least one first nozzle of the at least one first print head 212 ; 412 in the first printing position of an ejection direction of said at least one first nozzle of the at least one print head 212 ; 412 in the first rest position, in particular maintenance position and / or mounting position by an angle of at least 5 °, more preferably at least 10 °, even more preferably at least 15 ° and even more preferably at least 20 °. Preferably, a location of the at least one nozzle at at least one printing position arranged printhead 212 and a position of the at least one nozzle in at least one rest position, in particular maintenance position and / or mounting position arranged printhead 212 on through the axis of rotation 207 the at least one Bedruckstoffleitelements 201 fixed axial direction A relative to at most 50%, more preferably at most 20%, even more preferably at most 10% and even more preferably at most 2% of the measured in the axial direction A width of the working area of the at least one print head 212 having nozzle bar 213 and / or at most 50%, more preferably at most 20%, even more preferably at most 10% and even more preferably at most 2% by the maximum with the printing press 01 Processable substrate width defined working width of the printing press 01 , Preferably, a plane in which this distance and / or this angle is measured, determined by a surface normal, which is parallel to the axial direction A or deviates from this axial direction A by at most 2 °, more preferably, this plane is the axial projection plane ,
  • Preferably, this printing machine allows a method of positioning at least one as an ink jet printhead 212 trained printhead 212 at least one printing unit 200 ; 400 the printing press 01 , wherein in a shutdown at least one print head 212 the at least one printing unit 200 ; 400 is moved in at least one adjustment direction and / or along a travel from a print position in at least one rest position, in particular maintenance position and / or mounting position and / or by a designated transport path of at least one printing material web 02 is turned off and / or from a Bedruckstoffleitelement 201 is turned off and / or is turned off by a transmission body and wherein this at least one adjustment direction preferably at least partially and more preferably completely orthogonal to a through the axis of rotation 207 the at least one Bedruckstoffleitelements 201 fixed axial direction A is oriented.
  • At least within a printing unit is preferred 200 ; 400 the printing press 01 at least temporarily at least one along at least one Einziehwegs movable retraction means for drawing a printing material web 02 and / or along at least one intended transport path of the printing material web 02 movable retraction means for drawing in a printing material web 02 arranged and / or can be arranged. In particular, as described, the at least one print head is preferred 212 ; 412 formed along a travel in a direction of adjustment movable, wherein the adjusting direction preferably comprises at least one component which is orthogonal to one through the axis of rotation 207 ; 407 the at least one Bedruckstoffleitelements 201 ; 401 fixed axial direction A is oriented. Preferably, at least portions of the at least one pull-in path and more preferably the full pull-in path in the axial direction A relative to each target area of each nozzle of each printhead 212 ; 412 this printing unit 200 ; 400 a distance of at least 2 cm, more preferably at least 4 cm, even more preferably at least 6 cm and even more preferably at least 8 cm. Preferably, at least portions of the retraction means, and more preferably the full retraction means, are in the axial direction A relative to each target area of each nozzle of each printhead 212 ; 412 this printing unit 200 ; 400 a distance of at least 2 cm, more preferably at least 4 cm, even more preferably at least 6 cm and even more preferably at least 8 cm.
  • In particular, the at least one pull-in path and / or the at least one pull-in means with respect to the axial direction A is preferably outside the working range of the at least one print head 212 having nozzle bar 213 and / or outside a working width of the printing press 01 arranged. The direction of adjustment of the at least one print head 212 preferably has at least one component in a direction of a normal vector of the at least one print head 212 ; 412 next surface element of the intended transport path of the printing substrate 02 on. That means that the at least one printhead 212 is arranged away from the intended transport path or arranged abierbar, in particular for drawing a printing substrate 02 in the printing press 01 and / or in particular by means of at least one positioning device 217 ; 218 ; 219 ; 221 , Preferably, the printing press 01 at least temporarily and more preferably permanently at least one and more preferably exactly one retraction means for drawing in a printing material web 02 along a designated transport path of the printing material web 02 on.
  • At least one printing material web is preferred 02 via at least one further preferably designed as at least one Einziehspitze connecting element connected to the at least one retraction and / or connectable, in particular independent of the formation of the at least one retraction as Einziehband and / or Einziehkette and / or endless retraction and / or finite retraction. A pull-in tip is preferably a planar means whose smallest dimension is preferably smaller than 5 mm and which preferably has a substantially triangular shape and at one edge of which preferably an adhesive and / or adhesive is provided and which preferably at a tip opposite this edge has at least one fastening means. The adhesive and / or adhesive is preferably used to connect the Einziehspitze with a substrate 02 , The at least one fastening means preferably serves for releasably securing the draw-in tip to the at least one draw-in means.
  • Preferably, the at least one pulling-in means is designed as at least one endless pulling-in means, for example as at least one endless pulling-in tape. The at least one retraction means is alternatively formed as at least one finite retraction means, for example as a finite pull-in tape and / or as a finite pull-in chain. A finite Einziehband is preferably rewound after a retraction process, that is moved in the opposite direction along the Einziehwegs. Preferably, at least one retraction drive is arranged, by means of which the at least one retraction means is arranged to be movable along the at least one retraction path. For example, in the case of an endless retracting means, it is sufficient if exactly such a retraction drive is arranged. Alternatively, the at least one retraction means is finally formed. Then at least one Einziehspeicher is preferably arranged, in which the at least one retraction means is at least temporarily arranged, in particular, as long as it is not used to a printing material web 02 collect. In an alternative embodiment, the at least one retraction means is designed as at least one finite pull-in chain. In the preferred case of the at least one endless drawing-in means, it is preferred for the at least one drawing-in means to draw in a printing material web 02 along the intended transport path of the printing material web 02 in particular permanently along its at least one pull-in path within the printing press 01 arranged. More preferably, in particular, the at least one retraction means for drawing a printing material web 02 along the intended transport path of the printing material web 02 permanently along its at least one pull-in path within the at least one printing unit 200 ; 400 the printing press 01 arranged.
  • At least one Einziehleitelement is preferably arranged, by means of which at least one Einziehweg the at least one retraction means can be fixed and / or fixed. The at least one Einziehleitelement is formed for example as at least one deflection roller. The at least one Einziehleitelement is alternatively formed as at least one chain rail. Preferably, the at least one Einziehleitelement is designed as at least one rotatable Einziehleitelement, for example as at least one deflection roller. Preferably, the at least one rotatable Einziehleitelement and in particular the at least one deflection roller about a same axis of rotation 207 ; 407 arranged rotatably, as at least one Bedruckstoffleitelement 201 ; 401 a printing unit 200 ; 400 the printing press 01 , For example, as the at least one central cylinder 201 ; 401 , In particular, a chain rail can also have switches for the realization of different Einziehwege.
  • The at least one preferably endless pulling-in means preferably has at least two and more preferably at least five intended connecting points, on which at least one printing material web 02 directly and / or via at least one connecting element, for example, a Einziehspitze with the at least one retraction means is connectable. Preferably, the at least two, and more preferably at least five, connection points have a distance of at most 10 cm (ten centimeters) relative to the axial direction A, more preferably no more than 5 cm (five centimeters), even more preferably no more than 2 cm (two centimeters) and even more more preferably, no distance at all. Even more preferably, the at least two and more preferably at least five connection points are arranged at the same position relative to the axial direction A. Preferably, the at least two and more preferably at least five junctions are spaced apart along the at least one and preferably just one retraction path, more preferably at least 10 cm (ten centimeters), even more preferably at least 50 centimeters (fifty centimeters) and even more preferably at least at least 100 cm (one hundred centimeters). By way of example, the at least one retraction means has connecting points designed as eyelets and / or hooks, and / or the at least one connecting element accordingly has at least one hook and / or at least one eyelet. Such a hook and / or such an eyelet forms, for example, the at least one fastening means.
  • The Einziehweg the at least one retraction means preferably encloses the at least one, more preferably as at least one central cylinder 201 ; 401 formed rotatable Bedruckstoffleitelement 201 ; 401 from a rotation axis 207 ; 407 the at least one Bedruckstoffleitelements 201 ; 401 viewed from and / or viewed in the axial projection plane in an angular range of at least 180 ° and more preferably at least 270 °. Preferably, the Einziehweg the at least one retraction means at least along this angular range on a radius of curvature of at most 5 cm, more preferably at most 2 cm and even more preferably at most 1 cm from a radius of curvature of this at least one Bedruckstoffleitelements 201 ; 401 , especially this central cylinder 201 ; 401 differs.
  • Preferably, a projection, in particular in the axial projection plane, of the substrate for printing material overlaps 02 provided Transport path in the axial direction A and lying in particular in the axial projection plane projection of the at least one Einziehmittel provided Einziehwegs in the axial direction A at least partially, more preferably more than 25% of a length of the projection of the Einziehmittel provided Einziehwegs and still further preferably over 50% of this length.
  • This printing machine preferably allows a method for drawing in at least one printing material web 02 in at least one printing unit 200 ; 400 the printing press 01 , wherein in a shutdown at least one as inkjet printhead 212 trained printhead 212 the at least one printing unit 200 ; 400 in at least one direction of adjustment and / or along a travel from a designated transport of the at least one printing material web 02 is turned off and this at least one adjusting direction preferably at least partially and more preferably completely orthogonal to a through the axis of rotation 207 the at least one Bedruckstoffleitelements 201 and wherein thereafter, in a retraction operation, at least one retraction means along a pull-in path through the at least one pressure unit 200 ; 400 is moved and at least one printing material web 02 along an intended transport path for the at least one printing material web 02 and wherein the pull-in path and the transport path are spaced apart in the axial direction A, more preferably by at least 2 cm, even more preferably by at least 4 cm, even more preferably at least 6 cm and even more preferably at least 8 cm. For drawing in the at least one printing material web 02 it is not necessary to have the at least one printhead 212 to move in the shutdown to its maintenance position and / or mounting position. It is sufficient if there is a sufficiently large distance to the substrate 02 and / or to the connecting element to the at least one print head 212 to protect against damage. Thereafter, in a setting process, the at least one print head is preferred 212 preferably against the at least one adjustment direction and / or along a travel path to the intended transport path of the at least one printing material web 02 is employed and / or positioned in its printing position.
  • Preferably, the at least one retraction means in a joining process, in particular before the Einziehvorgang by means of at least one connecting element with the at least one printing material web 02 connected. The at least one retraction means is preferably connected to the at least one retraction means in the connection process by means of the at least one connecting element at exactly one of the at least two, further preferably at least five, connection points provided on the at least one retraction means. Preferably, the at least one connecting element passes a printing position of the at least one print head 212 while it is parked by the intended transport path and / or arranged in at least one rest position. During the drawing-in process, the at least one connecting element preferably passes at least one target area of at least one nozzle of the at least one print head 212 , Preferably, during the drawing-in operation, no constituent of the at least one draw-in means actually passes a target area of a nozzle of the at least one print head 212 , That is, preferably, all of the constituents of the at least one retraction means include any target area of any nozzles of the at least one printhead 212 bypass.
  • This results in at least one operating state in which the at least one retraction means by means of the at least one connecting element with the substrate 02 is connected and in which the at least one printhead 212 parked off the intended transport path and / or is arranged in at least one rest position and in which preferably at least one nozzle is aligned with its ejection direction to the at least one connecting element. In the at least one operating state, the at least one connecting element is preferably connected to the at least one printing material guide element 201 in particular with the at least one central cylinder 201 in contact. Alternatively or additionally, in the at least one operating state, the at least one connecting element is preferably in contact with at least one transmission body. Preferably, in this operating state, the at least one retraction means has an axial direction A relative to each target area of each nozzle of each printhead 212 ; 412 this printing unit 200 ; 400 a distance of at least 2 cm, more preferably at least 4 cm, even more preferably at least 6 cm and even more preferably at least 8 cm.
  • Preferably, only at least one retraction means is arranged, which in relation to the axial direction A relates to only one side of the intended transport path for printing material 02 is arranged and / or its Einziehweg only on one side of the intended transport path for substrate 02 runs. Preferably, only at least one retraction means is used, which is based on the axial direction A on only one side of the intended transport path for printing material 02 is arranged and / or its Einziehweg only on one side of the intended transport path for substrate 02 runs.
  • After the printing material web 02 the at least one first printing unit 200 has happened, the printing substrate 02 transported further along their transport path and preferably the at least one first dryer 301 the at least one dryer unit 300 fed. Preferably, the first, from the at least one first printing unit 200 printed side of the substrate web 02 between a last contact point of the printing material web 02 with the at least one first central cylinder 201 the at least one first printing unit 200 and an area of action of the at least one first dryer 301 with no part of the roll printing press 01 in contact. Preferably, the second, in particular of the first printing unit 200 not printed, the at least one first central cylinder 201 the at least one first printing unit 200 touching side of the substrate web 02 between the last contact point of the printing material web 02 with the first central cylinder 201 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 guide roller 214 the at least one first printing unit 200 and / or with at least one deflection roller 312 the at least one first dryer 301 in contact. At least one, more preferably as a third measuring roller, is preferred 214 trained third measuring device 214 arranged. This third measuring device 214 is used to measure the web tension. More preferably, the at least one guide roller 214 the first printing unit 200 with the third measuring roller 214 trained third measuring device 214 identical.
  • The at least one first dryer 301 is preferred as an infrared radiation dryer 301 educated. The at least one first dryer 301 preferably has at least one radiation source 302 on, preferably as an infrared radiation source 302 is trained. A radiation source 302 , preferably infrared radiation source 302 is a device by means of the targeted electrical energy is converted into radiation, preferably infrared radiation and / or is convertible and on the substrate web 02 is directed and / or judged. The at least one radiation source 302 preferably has a defined area of action. In particular, the exposure region is a radiation source 302 in each case the area which contains all the points, in particular without interruption, in a straight line directly or via reflectors with the radiation source 302 can be connected. The area of action of the at least one first dryer 301 consists of the exposure areas of all radiation sources 302 the at least one first dryer 301 together. The area of action of the at least one first dryer 301 preferably has at least one radiation source 302 to one of the at least one radiation source 302 nearest part of the transport path of the printing substrate 02 , By at least one vent opening air is in the interior of the at least one first dryer 301 initiated. Inside the first dryer 301 becomes from the printing material web by the infrared radiation 02 removed to remove water and / or solvent of the printing inks and absorbed by the introduced air. This air is then passed through at least one vent opening from the at least one first dryer 301 dissipated.
  • In a preferred embodiment, the intended transport path for printing material 02 through the at least one first dryer 301 at least two sections, each extending in directions with vertical components, more preferably with larger vertical than optional horizontal components. Preferably, the intended transport path of the printing material runs along one section at least with a component in the vertical direction upwards. Preferably, the intended transport path of the printing material runs along the other portion at least with a component in the vertical direction downwards. Preferably, the one portion and the other portion of the intended transport path are connected to each other by at least one provided connection piece of the intended transport path. Preferably, the at least one connecting piece extends in a direction with a horizontal component, more preferably with a larger horizontal than optionally present vertical component. This allows the at least one dryer 301 preferably be built very compact.
  • In the transport direction of the printing material web 02 after the area of action of the at least one radiation source 302 the at least one first dryer 301 is preferably at least a first cooling device 303 arranged. The at least one first cooling device 303 preferably has at least one first cooling roller 304 and preferably a first, to the at least one first cooling roll 304 adjustable and / or employed chill roller press 306 and preferably at least one, to the at least one first cooling roll 304 adjustable and / or employed connecting roller 307 ; 308 on. One of the at least one first cooling roller 304 associated first, as the first chill roll drive motor 311 trained drive motor 311 and the first chill roll press 306 are preferably part of a web tension control, that is, the web tension is arranged regulating 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 provides at least a fourth motor-driven rotary body 304 dar. The printing substrate 02 wraps and preferably contacts along its transport path the at least one first cooling roller 304 with a wrap angle of preferably at least 180 ° and more preferably at least 270 °. The first chill roller press 306 preferably forms with the at least one first cooling roll 304 a first cooling nip 309 , in which preferably the printing material web 02 disposed is and / or preferred the printing material web 02 passes. This is the substrate web 02 from the chill roll press 306 to the at least one first cooling roller 304 pressed. The at least one first cooling roller 304 the at least one first cooling device 303 is preferred as a cooling roller through which a coolant flows 304 educated.
  • Along the transport path of the printing material web 02 after the at least one first cooling device 303 is preferably at least a second printing unit 400 arranged. Preferably, 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 arranged at least a second Bahnkantenausrichter, which is preferably formed manually or driven controllable and / or adjustable. The at least one second printing unit 400 is analogous to the first printing unit 200 built up. In particular, the second printing unit 400 a second central pressure cylinder 401 or shortly central cylinder 401 on, in the printing operation of the printing substrate 02 is wrapped, also with a wrap angle of preferably at least 180 ° and more preferably at least 270 °. The second central cylinder 401 preferably provides a fifth motor driven rotary body 401 dar. The second central cylinder 401 the second printing unit 400 preferably has a direction of rotation, which is a direction of rotation of the at least one first central cylinder 201 is opposite. Along the transport path of the printing material web 02 in front of the second central cylinder 401 the second printing unit 400 is preferably a second printing material cleaning device 402 or web cleaning device 402 on the substrate web 02 acting arranged.
  • The transport path of the printing material web 02 by the at least one second printing unit 400 runs analogously to the transport path through the at least one first printing unit 200 , In particular, the printing material web wraps around 02 preferably a part of a second guide roller 403 and is deflected by this so that the transport path of the printing substrate 02 in the second space 404 both tangential to the second guide roller 403 as well as tangent to the second central cylinder 401 runs. At least one is preferred as the second impression roller 406 trained cylinder 406 in the second printing unit 400 arranged. The second impression roller 406 is preferably analogous to the first impression roller 206 constructed and arranged, in particular with respect to its mobility and a second impression gap 409 , The second central cylinder 401 is preferably analogous to the first central cylinder 201 arranged and constructed, 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 is a rotation angle position of the second drive motor 408 and / or the second central cylinder 401 itself measuring and / or measurable and sending to the higher-level machine control and / or is designed to transmit.
  • Within the second printing unit 400 is preferably at least a second, as an inkjet printing unit 411 or ink-jet printing unit 411 trained printing unit 411 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 on the second central cylinder 401 arranged aligned. The at least one second printing unit 411 the at least one second printing unit 400 is preferably identical to the at least one first printing unit 211 the at least one first printing unit 200 , in particular with respect to at least one nozzle bar 413 , at least one, as an ink jet printhead 412 trained printhead 412 and their arrangement 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 beam 413 and the at least one printhead 412 means 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 orientation of the printheads 412 the at least one second printing unit 400 is preferably checked by the fact that at least one sensor detects a printed image and the machine controller evaluates this printed 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. This is preferably at least a second printing unit 411 as a four-color printing unit 411 educated.
  • With regard to the transport path of the printing material web 02 is after the at least one second printing unit 400 at least a second dryer 331 arranged. After the printing material web 02 the at least one second printing unit 400 has happened, the printing substrate 02 transported along their transport path and preferably the at least one second dryer 331 the at least one dryer unit 300 fed. The at least one second dryer 331 is preferably analogous to the at least one first dryer 301 built up. The at least one first dryer 301 and the at least one second dryer 331 are components of at least one dryer unit 300 , Preferably, the second, from the at least one second printing unit 400 printed side of the substrate web 02 between a last contact point of the printing material web 02 with the second central cylinder 401 the at least one second printing unit 400 and an area of action of the at least one second dryer 301 with no part of the roll printing press 01 in contact. At least one deflection roller is preferred 414 the second printing unit 400 arranged. This is preferably at least one deflection roller 414 as the fifth measuring device 414 , in particular fifth measuring roller 414 educated.
  • 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 transport path provided for the printing substrate and / or a design as a flow dryer 331 and / or radiation dryer 331 and / or hot air dryer 331 and / or infrared radiation dryer 331 and / or UV radiation dryer 331 , In particular, the at least one second dryer 331 preferably at least one second cooling roll 334 more preferably at least a sixth motor driven rotary body 334 represents. The second cooling roller is preferred 334 by means of a second cooling roller drive 341 driven and / or driven. Preferably, the at least one second dryer 331 with respect to the components described substantially and further preferably completely symmetrical to the at least one first dryer 301 built up. The at least one second dryer 331 is preferably part of the same dryer unit 300 like the at least one first dryer 301 and is more preferably in a same housing 329 arranged. With respect to a spatial arrangement is the dryer unit 300 and are therefore preferred at least a first dryer 301 and the at least one second dryer 331 preferably between the at least one first printing unit 200 and the at least one second printing unit 400 arranged.
  • Along the transport path of the printing material web 02 after the at least one second dryer 331 is at least an extraction roller 501 arranged. The at least one pull-out roller 501 preferably has its own, as a pull-out roller drive 504 trained drive motor 504 on. The at least one pull-out roller 504 preferably provides at least a seventh motorized rotary body 504 dar. The at least one pull-out roller 501 preferably forms together with one of the at least one pull-out roller 501 employed and / or employable extract press 502 a pull-out gap 503 in which the printing material web 02 is trapped and by the the printing material web 02 is encouraged. The pull-out gap 503 is preferably used to control a web tension and / or transport of the printing material web 02 ,
  • With regard to the transport path of the printing material web 02 before and / or after the extraction roller 501 , but especially along the transport path of the printing material 02 after at least a first dryer 301 , At least one Wiederbefeuchtungseinrichtung is preferably arranged, which preferably a too large moisture loss of the printing substrate 02 due to the treatment by the dryer unit 300 balances.
  • Along the transport path of the printing material web 02 after the pull-out gap 503 and / or after the rewet device is at least one rework device 500 arranged, preferably as a folding device 500 is formed and / or a sheet cutter 500 and / or a planned expense 500 or as a winding device 500 is trained. In this and / or by this post-processing device 500 becomes the printing material web 02 preferably folded and / or cut and / or stapled and / or sorted and / or enveloped and / or shipped and / or wound up.
  • In at least one variant of the printing press is the printing press 01 as a roll-rotation ink-jet printing machine 01 formed and is at least one transmission body with the at least one first pressure central cylinder 201 a transmission gap forming arranged. Then the at least one printhead is preferred 212 aligned with the at least one transmission body.
  • 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 )
    107
    Beam ( 101 )
    108
    Axle, support, support frame ( 107 )
    109
    Pivot axis ( 108 )
    110
    111
    Rotation axis ( 101 ; 103 )
    112
     frame
    113
     dancer roll
    114
     Bahnkantenausrichter, first
    115
    116
     aligning
    117
     Zugpresseur
    118
     draw roller; Rotation body, second
    119
     nip
    120
    121
     dancer arm
    139
     infeed
    140
    141
     Measuring roller, feed measuring roller, measuring device, first
    146
    Drive motor, traction drive motor ( 118 )
    200
     Printing unit, first
    201
     Printing material guide, central pressure cylinder, central cylinder, first; Rotation body, third
    202
     Substrate preparation device, web preparation device, coating device, corona device, discharge device, substrate cleaning device, web cleaning device, first dedusting device,
    203
     Roller, deflection roller, printing material guide
    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
     Deflection roller, measuring roller, measuring device, third, printing material guide
    215
    216
     Measuring roller, measuring device, second
    217
     Positioning device, first
    218
     Positioning device, second
    219
     Positioning device, third
    220
    221
     Positioning device, fourth
    222
     Maintenance device, cleaning device, inspection device
    223
     Feeding device, guidance system
    224
     Positioning guide, lever arm, rail
    225
    226
     Positioning drive, electric motor, stepper motor, hydraulic cylinder, pneumatic cylinder
    227
    Pivot axis ( 212 ; 213 ; 217 ; 218 ; 219 ; 221 )
    228
     Traction means, thrust means, chain, rail, rack
    229
     Feed drive, stepper motor
    230
    231
    Rack ( 200 ; 400 )
    251
     Supply system, ink supply system
    252
     normal stock
    253
     Liquid line, color line, first
    254
     supply
    255
    256
     derivation
    257
     cache
    258
     Overflow drain
    259
     filter means
    260
    261
     degassing
    262
     Valve, check valve, first
    263
     Valve, check valve, second
    264
     Liquid pump, first
    265
    266
     Gas room, first
    267
     Gas pipe, first
    268
     Vacuum source, gas pump, first
    269
     Gas room, second
    270
    271
     Gas pipe, second
    272
     buffer memory
    273
     Supply line, suction line
    274
     reservoir
    275
    276
     Vacuum source, vacuum buffer
    277
     Vacuum source, vacuum regulator
    278
     vacuum supply
    279
     degassing
    280
     Return valve
    281
     vacuum line
    282
     Normal pressure line
    283
     pressure regulator
    284
     Compressed air source, air pump, atmosphere connection
    285
     Return pump
    286
     compensation line
    287
     overflow
    288
     supply line
    289
     stock pump
    290
     Gas room, third
    291
     stock valve
    292
     Supply air
    293
     Liquid trap, coating agent trap
    294
     vacuum sensor
    295
     Return memory
    296
     supply pump
    297
     Flow meter
    298
     Supply valve, local
    299
     attenuator
    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, second
    309
     Cooling nip, first
    310
    311
    Drive motor, chill roll drive motor ( 304 ), first
    312
     Guide roller, printing material guide
    329
    Casing ( 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
    339
     Cooling nip, second
    340
    341
    Drive motor, chill roll drive motor ( 334 ), second
    342
    343
     Measuring roller, measuring device, sixth
    400
     Printing unit, second
    401
     Printing material guide, central pressure cylinder, central cylinder, second; Rotation body, fifth
    402
     Substrate cleaning device, web cleaning device, dedusting device, second
    403
     Roller, deflection roller, printing material guide
    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
     Guide roller, measuring roller, fifth, printing material guide
    415
    416
     Measuring roller, measuring device, fourth
    500
     Post-processing device, folding device, rewinder, sheet cutter, plan delivery
    501
     Extractor, rotary body, seventh
    502
     Auszugpresseur
    503
     excerpt gap
    504
    Drive motor, extract roller drive ( 501 )
    A
     Direction, axial
  • QUOTES INCLUDE IN THE DESCRIPTION
  • This list of the documents listed by the applicant has been generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.
  • Cited patent literature
    • EP 2202081 A1 [0004]
    • JP 2003-063707A [0004]
    • US 5566616 A [0005]
    • US 6053107 A [0006]
    • DE 102011076899 A1 [0007]
    • DE 102010001146 A1 [0008]
    • DE 4318299 A1 [0008]
    • EP 1197329 A1 [0008]
    • US 2011/0043554 A1 [0008]
    • DE 102004017801 A1 [0009]
    • US 2005/0024421 Al [0009]
    • DE 102010037829 A1 [0009]
    • JP 2004268511 A [0009]
    • US 2006/0119646 A1 [0009]
    • US 5206666 A [0009]
    • US 5757399 A [0009]
    • US 7455401 B2 [0009]
    • US 2011/0149004 A1 [0009]
    • US 8262198 B2 [0009]
    • DE 2349453 A1 [0009]
    • US 2009/0284566 A1 [0010]
    • DE 102005060786 A1 [0011]
    • EP 2127885 A1 [0011]
    • US 2008/0273063 A1 [0011]
  • Cited non-patent literature
    • DIN 16500-2 [0003]
    • DIN 16500-2 [0003]

Claims (14)

  1. Printing machine ( 01 ), the printing machine ( 01 ) at least one printing unit ( 200 ; 400 ) having at least two print heads ( 412 . 212 ) and at least one axis of rotation defining an axial direction (A) ( 207 ; 407 ) rotatable printing material guide element ( 201 ; 401 ) and wherein each of the at least two print heads ( 212 ; 412 ) by means of a respective, at least this print head ( 212 , 4 12 ) associated positioning device ( 217 ; 218 ; 219 ; 221 ) is movably arranged along a respective linear travel path and wherein the linear travel paths point in respective adjustment directions, which differ in pairs by at least 10 ° and at most 150 °, and wherein each of the at least two print heads ( 212 ; 412 ) by means of the respective positioning device ( 217 ; 218 ; 219 ; 221 ) can be arranged optionally at least either in a printing position assigned to it or at least one maintenance position assigned to it, characterized in that in the at least one maintenance position of a first print head ( 212 ; 412 ) of the at least two print heads ( 212 ; 412 ) at least one maintenance device ( 222 ) at least a first nozzle of said at least one first printhead ( 212 ; 412 ) and / or can be assigned and that the at least one maintenance device ( 222 ) by means of at least one feed device ( 223 ) is arranged to be movable along at least one provisioning path between at least one parking position and at least one insertion position, at least partially orthogonal to the axial direction (A).
  2. Printing machine according to claim 1, characterized in that the at least one printing unit ( 200 ; 400 ), which has at least four print heads ( 412 . 212 ) and that each of the at least four print heads ( 212 ; 412 ) by means of a respective, at least this print head ( 212 , 4 12 ) associated positioning device ( 217 ; 218 ; 219 ; 221 ) is movably disposed along a respective linear travel.
  3. Printing machine according to claim 1 and / or 2, characterized in that arranged in its maintenance position first print head ( 212 ; 412 ) a rest position of the at least one first nozzle of the at least one first of the at least two print heads ( 212 ; 412 ) a first maintenance distance from a working position of the same at least one first nozzle of the same at least a first of the at least two print heads ( 212 ; 412 ) in its first printing position and that with respect to a second print head ( 212 ; 412 ) of the at least two print heads ( 212 ; 412 ) with the second print head arranged in its maintenance position ( 212 ; 412 ) a rest position of at least a second nozzle of the at least one print head ( 212 ; 412 ) a second maintenance distance from a working position of the same at least one second nozzle of the same at least one second printhead ( 212 ; 412 ) in its second printing position, and that the first maintenance interval is different from the second maintenance interval by at least 2 cm.
  4. Printing machine according to claim 1 and / or 2 and / or 3, characterized in that the actuating directions of the linear adjustment paths in each case orthogonal to the axis of rotation ( 207 ; 407 ) of the at least one rotatable Bedruckstoffleitelements ( 201 ; 401 ) are aligned.
  5. Printing machine according to claim 1 and / or 2 and / or 3 and / or 4, characterized in that the respective maintenance device ( 222 ) in their respective position of use of the respective at least one nozzle of the respective print head ( 212 ; 412 ) is assigned in its maintenance position.
  6. Printing machine according to claim 1 and / or 2 and / or 3 and / or 4 and / or 5, characterized in that the maintenance device ( 222 ) as at least one cleaning device ( 222 ) is formed and the at least one cleaning device ( 222 ) at least one in and / or against the axial direction (A) relative to the at least one print head ( 212 ; 412 ) movable cleaning module ( 150 ) having.
  7. Printing machine according to claim 1 and / or 2 and / or 3 and / or 4 and / or 5 and / or 6, characterized in that the at least one printing unit ( 200 ; 400 ) at least two nozzle bars ( 213 ; 413 ), each having at least two print heads ( 212 ; 412 ) and that the at least two nozzle bars ( 213 ; 413 ) by means of a respective positioning device ( 217 ; 218 ; 219 ; 221 ) are movably arranged along a respective linear travel.
  8. Printing machine according to claim 1 and / or 2 and / or 3 and / or 4 and / or 5 and / or 6 and / or 7, characterized in that in the at least one first maintenance position at least a first maintenance device ( 222 ) between the at least one first nozzle of the at least one first printhead ( 212 ; 412 ) and one of these at least a first nozzle next area of the for the substrate ( 02 ) can be arranged and / or arranged and / or that in the at least one first maintenance position at least a first maintenance device ( 222 ) between the at least one first nozzle of the at least one first printhead ( 212 ; 412 ) and one of these at least a first nozzle next portion of a transfer body can be arranged and / or arranged.
  9. Printing machine according to claim 1 and / or 2 and / or 3 and / or 4 and / or 5 and / or 6 and / or or 7 and / or 8, characterized in that the at least one printing material ( 201 ; 401 ) within the at least one printing unit ( 200 ; 400 ) is arranged and / or that the at least one Bedruckstoffleitelement ( 201 ; 401 ) as at least one web guide roller and / or a guide roller ( 203 ; 214 ; 312 ; 403 ; 414 ) and / or as at least one pressure central cylinder ( 201 ; 401 ) and / or is designed as at least one transmission body.
  10. Printing machine according to claim 1 and / or 2 and / or 3 and / or 4 and / or 5 and / or 6 and / or 7 and / or 8 and / or 9, characterized in that arranged in the printing position first printhead ( 212 ; 412 ) at least one nozzle of said at least one first printhead ( 212 ; 412 ) is arranged below the provision path along which the at least one maintenance device ( 222 ) is arranged movable and that in the rest position of this at least one first printhead ( 212 ; 412 ) This is arranged at least one nozzle above this provision path.
  11. Printing machine according to claim 1 and / or 2 and / or 3 and / or 4 and / or 5 and / or 6 and / or 7 and / or 8 and / or 9 and / or 10, characterized in that the respective supply path linear and in a direction that deviates from a horizontal direction by at most 45 °.
  12. Printing machine according to claim 1 and / or 2 and / or 3 and / or 4 and / or 5 and / or 6 and / or 7 and / or 8 and / or 9 and / or 10 and / or 11, characterized in that at least two maintenance devices ( 222 ), the different of the at least two print heads ( 212 ; 412 ) are assigned and / or can be assigned, are at least partially arranged one above the other in their respective parking positions.
  13. Printing machine according to claim 1 and / or 2 and / or 3 and / or 4 and / or 5 and / or 6 and / or 7 and / or 8 and / or 9 and / or 10 and / or 11 and / or 12, characterized in that an optional component of the provision path of the at least one maintenance device ( 222 ) in the axial direction (A) at most 50% of a measured in the axial direction (A) width of a working area of the at least one print head ( 212 ) having nozzle bar ( 213 ) and / or at most 50% of a maximum with the printing press ( 01 ) processable width of substrate defined working width of the printing press ( 01 ) is.
  14. Printing machine according to claim 1 and / or 2 and / or 3 and / or 4 and / or 5 and / or 6 and / or 7 and / or 8 and / or 9 and / or 10 and / or 11 and / or 12 and / or or 13, characterized in that at least within a printing unit ( 200 ; 400 ) at least temporarily at least one along at least one Einziehwegs movable retraction means for drawing a printing substrate ( 02 ) and / or can be arranged and that the at least one print head ( 212 ; 412 ) is designed to be movable along a travel in a direction of adjustment and that the adjustment direction has at least one component that is orthogonal to one through the axis of rotation ( 207 ; 407 ) of the at least one printing material guide element ( 201 ; 401 oriented axial direction (A) and that at least parts of the at least one Einziehwegs in the axial direction (A) relative to each target area of each nozzle of each printhead ( 212 ; 412 ) of this printing unit ( 200 ; 400 ) has a distance of at least 2 cm.
DE102014208893.3A 2014-05-12 2014-05-12 press Pending DE102014208893A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE102014208893.3A DE102014208893A1 (en) 2014-05-12 2014-05-12 press

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102014208893.3A DE102014208893A1 (en) 2014-05-12 2014-05-12 press

Publications (1)

Publication Number Publication Date
DE102014208893A1 true DE102014208893A1 (en) 2015-11-12

Family

ID=54336630

Family Applications (1)

Application Number Title Priority Date Filing Date
DE102014208893.3A Pending DE102014208893A1 (en) 2014-05-12 2014-05-12 press

Country Status (1)

Country Link
DE (1) DE102014208893A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2019086163A1 (en) * 2017-10-31 2019-05-09 Memjet Technology Limited Maintenance module arrangement for modular printer having curved media path

Citations (24)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2349453A1 (en) 1973-10-02 1975-04-03 Siemens Ag Fluessigkeitsstrahlschreiber
US5206666A (en) 1989-11-22 1993-04-27 Canon Kabushiki Kaisha Ink jet recording apparatus
DE4318299A1 (en) 1993-06-02 1994-12-08 Roland Man Druckmasch Feeding device and method for feeding material webs into a printing press
US5566616A (en) 1994-12-02 1996-10-22 Kimberly-Clark Corporation Substrate printed by a single substrate, repeat-pass printing process
US5757399A (en) 1990-02-02 1998-05-26 Canon Kabushiki Kaisha Ink jet recording apparatus with movable recovery assembly
US6053107A (en) 1999-01-13 2000-04-25 Paper Converting Machine Co. Method and apparatus for registering a pre-printed web on a printing press
EP1197329A1 (en) 1998-08-18 2002-04-17 Koenig & Bauer Aktiengesellschaft Method for forming a threading tip
JP2003063707A (en) 2001-08-24 2003-03-05 Hitachi Koki Co Ltd Recorder
JP2004268511A (en) 2003-03-11 2004-09-30 Konica Minolta Holdings Inc Inkjet recording apparatus
US20050024421A1 (en) 2003-07-31 2005-02-03 Barinaga John A. Service station architecture and method for drum printer
US20060119646A1 (en) 2004-12-06 2006-06-08 Berry Norman M Inkjet printer with laterally displaceable capping mechanism
DE102005060786A1 (en) 2005-12-16 2007-06-28 Man Roland Druckmaschinen Ag Inkjet printing device
US20080273063A1 (en) 2004-12-17 2008-11-06 Agea Graphics Nv System and Method for Supplying an Ink to a Reciprocating Printhead in an Inkject Apparatus
US7455401B2 (en) 2003-09-24 2008-11-25 Hamada Printing Press Co., Ltd. Line-dot recorder
US20090122107A1 (en) * 2007-11-09 2009-05-14 Ray Paul C Print Head Service Shuttle
US20090284566A1 (en) 2008-05-13 2009-11-19 Fuji Xerox Co., Ltd. Droplet ejecting device
EP2127885A1 (en) 2008-05-29 2009-12-02 Stork Prints B.V. Inkjet printing device
EP2202081A1 (en) 2008-12-17 2010-06-30 E.C.H. Will GmbH Device for printing a sheet web
US20110043554A1 (en) 2009-08-21 2011-02-24 Silverbrook Research Pty Ltd Continuous web printer for printing non-identical copies within a print run
US20110149004A1 (en) 2007-11-09 2011-06-23 Ray Paul C Printer including positionable printing units
DE102010001146A1 (en) 2010-01-22 2011-07-28 KOENIG & BAUER Aktiengesellschaft, 97080 Chain guide rail for retractable string of printing machine, has base body and two blades extended along base body in longitudinal direction in relation to transportation path of retractable string
DE102010037829A1 (en) 2010-09-28 2012-03-29 OCé PRINTING SYSTEMS GMBH Printing element for ink printing apparatus e.g. color printer, has printing unit which is laid over print material at operating position and laid besides a transport unit at parking position
US8262198B2 (en) 2010-02-02 2012-09-11 Seiko Epson Corporation Head attachment member, liquid ejection device, and head attachment method
DE102011076899A1 (en) 2011-06-01 2012-12-06 Koenig & Bauer Aktiengesellschaft Rotary printing machine, particularly roll rotary printing machine or inkjet printing machine, comprises printing unit and dryer, where printing unit has central cylinder with separate drive motor arranged at central cylinder

Patent Citations (25)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2349453A1 (en) 1973-10-02 1975-04-03 Siemens Ag Fluessigkeitsstrahlschreiber
US5206666A (en) 1989-11-22 1993-04-27 Canon Kabushiki Kaisha Ink jet recording apparatus
US5757399A (en) 1990-02-02 1998-05-26 Canon Kabushiki Kaisha Ink jet recording apparatus with movable recovery assembly
DE4318299A1 (en) 1993-06-02 1994-12-08 Roland Man Druckmasch Feeding device and method for feeding material webs into a printing press
US5566616A (en) 1994-12-02 1996-10-22 Kimberly-Clark Corporation Substrate printed by a single substrate, repeat-pass printing process
EP1197329A1 (en) 1998-08-18 2002-04-17 Koenig & Bauer Aktiengesellschaft Method for forming a threading tip
US6053107A (en) 1999-01-13 2000-04-25 Paper Converting Machine Co. Method and apparatus for registering a pre-printed web on a printing press
JP2003063707A (en) 2001-08-24 2003-03-05 Hitachi Koki Co Ltd Recorder
JP2004268511A (en) 2003-03-11 2004-09-30 Konica Minolta Holdings Inc Inkjet recording apparatus
US20050024421A1 (en) 2003-07-31 2005-02-03 Barinaga John A. Service station architecture and method for drum printer
DE102004017801A1 (en) 2003-07-31 2005-03-03 Hewlett-Packard Development Co., L.P., Houston Service station architecture and method for a drum printer
US7455401B2 (en) 2003-09-24 2008-11-25 Hamada Printing Press Co., Ltd. Line-dot recorder
US20060119646A1 (en) 2004-12-06 2006-06-08 Berry Norman M Inkjet printer with laterally displaceable capping mechanism
US20080273063A1 (en) 2004-12-17 2008-11-06 Agea Graphics Nv System and Method for Supplying an Ink to a Reciprocating Printhead in an Inkject Apparatus
DE102005060786A1 (en) 2005-12-16 2007-06-28 Man Roland Druckmaschinen Ag Inkjet printing device
US20090122107A1 (en) * 2007-11-09 2009-05-14 Ray Paul C Print Head Service Shuttle
US20110149004A1 (en) 2007-11-09 2011-06-23 Ray Paul C Printer including positionable printing units
US20090284566A1 (en) 2008-05-13 2009-11-19 Fuji Xerox Co., Ltd. Droplet ejecting device
EP2127885A1 (en) 2008-05-29 2009-12-02 Stork Prints B.V. Inkjet printing device
EP2202081A1 (en) 2008-12-17 2010-06-30 E.C.H. Will GmbH Device for printing a sheet web
US20110043554A1 (en) 2009-08-21 2011-02-24 Silverbrook Research Pty Ltd Continuous web printer for printing non-identical copies within a print run
DE102010001146A1 (en) 2010-01-22 2011-07-28 KOENIG & BAUER Aktiengesellschaft, 97080 Chain guide rail for retractable string of printing machine, has base body and two blades extended along base body in longitudinal direction in relation to transportation path of retractable string
US8262198B2 (en) 2010-02-02 2012-09-11 Seiko Epson Corporation Head attachment member, liquid ejection device, and head attachment method
DE102010037829A1 (en) 2010-09-28 2012-03-29 OCé PRINTING SYSTEMS GMBH Printing element for ink printing apparatus e.g. color printer, has printing unit which is laid over print material at operating position and laid besides a transport unit at parking position
DE102011076899A1 (en) 2011-06-01 2012-12-06 Koenig & Bauer Aktiengesellschaft Rotary printing machine, particularly roll rotary printing machine or inkjet printing machine, comprises printing unit and dryer, where printing unit has central cylinder with separate drive motor arranged at central cylinder

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
DIN 16500-2

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2019086163A1 (en) * 2017-10-31 2019-05-09 Memjet Technology Limited Maintenance module arrangement for modular printer having curved media path

Similar Documents

Publication Publication Date Title
EP3253576B1 (en) Machine arrangements having a plurality of stations for sequential processing of sheet-type substrates
US8668305B2 (en) Print group for an inkjet printing apparatus
CN103635326B (en) printer
US8141971B2 (en) Image recording apparatus
DE102015111525A1 (en) Modular inkjet printing device
US8038258B2 (en) Print head service shuttle
KR101800468B1 (en) An inkjet printing system
CN102844195B (en) For the apparatus and method making the printout surface to be printed of plate of material have multicolor image
EP0737572B2 (en) Apparatus for imprinting bar codes on a printed sheet
EP2832546B1 (en) Printing machine with print head control
DE102009061056A1 (en) Format variable web press
DE102015216026A1 (en) Direct printing machine and method for printing on containers with direct printing
US20110149003A1 (en) Ink-jet printer
EP1717175A1 (en) Ink jet recorder
US8215756B2 (en) Labelling machine
CN101746162A (en) Apparatus for imprinting a sheet web
CN105228833B (en) Method in printing machine and printing element for printable fabric web to be pulled in printing machine
US7793697B2 (en) Film transfer apparatus with variable film web guidance
DE102011112106B3 (en) Apparatus for performing multi-color printing on packaging structure e.g. bottle, has holding and centering unit which holds packaging structure, and specific unit of pressure segment supports and releases holding and centering unit
JP2011507726A (en) Modular film unit
US20060103707A1 (en) Media print system
US9676202B2 (en) System and method for detecting defects in an inkjet printer
JP5916393B2 (en) How to perform a pause function during printing operation on an ink printer
DE102017208745A1 (en) Sheetfed
EP1810825A2 (en) Sheet printing press

Legal Events

Date Code Title Description
R012 Request for examination validly filed
R016 Response to examination communication