EP2996879A1 - Druckmaschine und ein verfahren zum einziehen einer bedruckstoffbahn in eine druckeinheit einer druckmaschine - Google Patents
Druckmaschine und ein verfahren zum einziehen einer bedruckstoffbahn in eine druckeinheit einer druckmaschineInfo
- Publication number
- EP2996879A1 EP2996879A1 EP14723776.2A EP14723776A EP2996879A1 EP 2996879 A1 EP2996879 A1 EP 2996879A1 EP 14723776 A EP14723776 A EP 14723776A EP 2996879 A1 EP2996879 A1 EP 2996879A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- printing
- nozzle
- print head
- axial direction
- machine according
- 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.)
- Granted
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
- B41J15/00—Devices or arrangements of selective printing mechanisms, e.g. ink-jet printers or thermal printers, specially adapted for supporting or handling copy material in continuous form, e.g. webs
- B41J15/04—Supporting, feeding, or guiding devices; Mountings for web rolls or spindles
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
- B41J15/00—Devices or arrangements of selective printing mechanisms, e.g. ink-jet printers or thermal printers, specially adapted for supporting or handling copy material in continuous form, e.g. webs
- B41J15/04—Supporting, feeding, or guiding devices; Mountings for web rolls or spindles
- B41J15/042—Supporting, feeding, or guiding devices; Mountings for web rolls or spindles for loading rolled-up continuous copy material into printers, e.g. for replacing a used-up paper roll; Point-of-sale printers with openable casings allowing access to the rolled-up continuous copy material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
- B41J2/00—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed
- B41J2/005—Typewriters 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
- B41J2/01—Ink jet
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
- B41J25/00—Actions or mechanisms not otherwise provided for
- B41J25/304—Bodily-movable mechanisms for print heads or carriages movable towards or from paper surface
Definitions
- the invention relates to a printing press according to the preamble of claim 1 and to a method for drawing a printing material web into a printing unit of a
- Various printing methods are known which can be used in printing presses.
- One such printing method is ink jet printing or ink jet printing.
- 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.
- 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.
- Multi-color printing is referred to as the Passer (DIN 16500-2), when individual print images of different colors are combined exactly to a picture. Also in the context of inkjet printing, appropriate measures must be taken to maintain register and / or register.
- a printing press is known from EP 2 202 081 A1 and JP 2003-063707 A, 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 inkjet printhead.
- Central cylinder Central cylinder, inkjet printheads, a cooling device and a dryer, which optionally operates with temperature and draft or with radiation-induced crosslinking.
- a printing machine which has at least one printing unit and at least one print head designed as an inkjet printhead.
- Printing press known in which at least one Bedruckstoffleitelement of at least one print head is removed for drawing a web.
- Printing machine with along a travel movable printheads
- Positional accuracy linear directions are movable and can be fed by movement parallel to a rotational axis of a Beyakstoffleitelements a stationary maintenance device.
- Coating means and at least two inkjet printheads are arranged 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 machine and a method for drawing a printing material in a printing unit of a printing press.
- a printing press preferably has at least one printing unit, wherein the at least one printing unit preferably has at least one printing unit, in particular
- Ink jet print head formed printhead and preferably at least one rotatable about a rotational axis Bechriststoffleitelement and wherein the at least one printhead preferably in at least one preferred as a maintenance position
- trained resting position can be arranged, in the preferred at least one
- the at least one print head is preferably in at least one Print position can be arranged.
- 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
- Rotation axis is rotatable.
- 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 in each case at least one print head optionally either at least in a respective printing position assigned to it or in a printing position assigned to it
- Mounting position can be arranged.
- at least one first print head of the at least four print heads is in particular by means of at least one first
- Positioning optionally either at least in an associated first printing position or in a first rest position associated with it, in particular first maintenance position and / or first mounting position can be arranged.
- at least one second print head of the at least four print heads in particular by means of at least one second positioning device, is optionally at least either in a second print position assigned to it or in a second print position assigned to it
- Resting position in particular second maintenance position and / or second mounting position can be arranged.
- the respective rest position is formed as a respective maintenance position, in the further preferred at least one as a cleaning device
- One advantage is that it provides the opportunity to create a particularly compact printing unit because the
- the first rest position is preferred as the first maintenance position
- the second rest position is preferred as the second
- At least one second cleaning device designed as a second cleaning device associated with at least one nozzle of the second printhead and / or can be assigned.
- 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.
- At least one fourth rest position of a fourth printhead is preferably designed as a fourth maintenance position, in which at least one is the fourth
- the at least one maintenance device is arranged to be movable along a provision path at least partially orthogonal to the axial direction.
- 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.
- 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.
- a preferred minimum distance between at least one first nozzle of the at least one first printhead in its first rest position and at least one second nozzle of the at least one second printhead in its second is preferably referred to as quiescent distance, in particular maintenance removal and / or removal Rest 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 greater 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 in its first printing position and the at least one second nozzle of the at least one second printhead in its second printing position.
- Coating to understand, especially a paint. 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.
- printheads are designed such that each individual printhead does not extend over an entire working width of the printing machine determined by a maximum substrate width that can be processed by the printing machine. 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.
- Positioning devices arranged by means of which in each case at least one nozzle bar and / or more of a same ink associated printheads formed jointly movable and in particular optionally either at least one or him assigned to each printing position or in him or their respective 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 Print unit.
- the at least one print head is preferably by means of at least one positioning device of one for at least one printing material web
- 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.
- 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 printing 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 arranged in the printing unit
- the printing machine is characterized in that the at least one maintenance device by means of at least one feed device along at least one provision path between at least one parking position and at least one
- Insert position is arranged movable.
- 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. At least one nozzle of this respective print head is preferably arranged below the provision path of the respective at least one maintenance device in each print head arranged in its printing position and is arranged at each in its rest position Printhead arranged this respective at least one nozzle above this respective provision path.
- Maintenance devices linear 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 °.
- the respective or common deployment direction is horizontal.
- 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 this at least one reference nozzle of the respective print head in his
- Betigstoffleitelements defined by at least 50% of a measured width in the axial direction of a working area of the respective printhead nozzle bar and / or at most 50% defined by a maximum processable with the printing substrate width
- 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 Beyakstoffleitelements axial direction at most 50% of the width measured in the axial direction
- At least one maintenance device is preferably at least one nozzle of the at least one
- Printhead associated and / or assignable is more preferably the at least one maintenance device at least one nozzle of the at least one printhead at least partially opposite to a respective ejection direction of the at least one nozzle arranged opposite and / or can be arranged.
- 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 one first of the at least two printheads a first rest distance, in particular maintenance distance and / or mounting distance from a first working position thereof at least a first nozzle thereof at least a first of the at least has two printheads in its first printing position. At least a second of the at least two is preferred
- Printheads in particular of this first printing unit preferably each by means of an associated second positioning optionally either at least in an assigned second printing position can be arranged or in an associated second rest position, in particular maintenance position and / or mounting position can be arranged, wherein in the at least one second rest position, a rest position at least a second nozzle of the at least one second of the at least two printheads has 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.
- the first rest distance in particular maintenance distance and / or mounting distance from the second rest distance, in particular
- a rest distance is a distance between a position of a nozzle in its rest position, this nozzle exhibiting
- Printhead and a layer of the same nozzle when arranged in its printing position same printhead 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.
- 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 the axis of rotation of the at least one
- 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.
- 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 °. Furthermore, each of the at least two is preferred
- Printheads by means of the respective positioning optionally either at least in an associated printing position or at least one associated with him
- the at least one maintenance device is preferably connected by means of at least one feed device along at least one provision path between at least one parking position and at least one
- 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.
- 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.
- 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.
- 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.
- 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 print head thereof Pressure unit 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.
- 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.
- the printing press is characterized in that at least one
- Substrate web is connected via at least one connecting element with the at least one retraction means and / or connectable, more preferably, the at least one connecting element is formed as at least one Einziehspitze.
- the printing press is characterized in that the at least one retraction means is designed as at least one endless pull-in tape and / or that at least one
- Einziehleitelement is arranged, by means of which the at least one Einziehweg the at least one retraction means is fixed and / or fixed, more preferably at least one Einziehleitelement is formed as at least one deflection roller or at least one chain rail and / or at least one Einziehleitelement than at least one rotatable Einziehleitelement is formed.
- 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.
- the at least one retraction means in each case at least two, and more preferably at least five provided connection points on which at least one printing material directly and / or via at least one connecting element with the at least one Einziehstoff is connectable.
- 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.
- a pull-in path of the at least one retraction means surrounds the at least one rotatable printing material guide element viewed from an axis of rotation of the at least one printing material guide element in an angular range of at least 180 ° and is at least one rotatable one
- Einziehleitelement arranged by means of which at least one Einziehweg the at least one retraction means can be fixed and / or fixed and that by a same
- Rotary axis is arranged rotatably, as at least one Beyakstoffleitelement 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 Beyakstoffleitelements.
- the printing press is characterized in that an axial
- Projection level is determined by a surface normal, which is parallel to the axial direction or deviates from this axial direction by at most 2 ° and that is located in the axial projection plane projection of the substrate
- 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 in at least one setting direction of a
- Einziehwegs is moved through the at least one printing unit and the at least one printing material along the path for the at least one printing material web
- This at least one adjustment direction is preferably oriented at least partially orthogonal to the axial direction.
- the method is characterized in that the at least one
- Einziehstoff is connected in a connecting operation by means of at least one connecting element with the at least one printing material web.
- the at least one connecting element passes through a printing position of the at least one print head while it is parked away from the intended transport path and / or arranged in at least one rest position and / or passes through at least one
- the method is characterized in that then at least one print head is employed against the at least one positioning direction and / or along a travel path to the intended transport path of the at least one printing material in a positioning process and / or is positioned in its printing position.
- the method is characterized in that in the shutdown at least two printheads of the at least one printing unit in a respective
- Substrate web are parked, the respective positioning directions differ in pairs by at least 10 ° and at most 150 °.
- the method is characterized in that in at least one
- only at least one retraction means is used, which on the axial
- 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.
- the printing press is characterized in that the printing press at least one supply system for coating agent and that the at least one supply system has at least one normal supply and that the at least two print heads are in each case connected and / or connectable via at least one first liquid line to the at least one normal supply.
- 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 more preferably has at least one return reservoir and at least one outlet with the at least one return reservoir
- the Latch is connected and / or connectable and / or is preferably designed as at least a passive overflow drain.
- 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.
- 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.
- 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 consists in particular in that at least one within the discharge between the at least one overflow drain and the at least one Return storage arranged valve, a separation of the at least one normal supply and the at least one return accumulator is possible. As a result, for example, within the normal supply pressure can be increased to perform a nozzle cleaning of the print heads and can simultaneously and independently
- Coating are removed from the at least one return storage.
- Return accumulator with the at least two printheads ensured that a flow of coating agent from the overflow drain is always possible even at constant in the maintenance position positioning device to constant conditions and thus optimizes, for example, exclusively by gravity.
- 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.
- 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.
- 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 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.
- Positioning device must be moved.
- 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 reserve and / or the at least one discharge have at least one overflow drain, whose outflow side communicates with the at least one indirectly with the at least one Latch connected and / or arranged connectable.
- 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.
- 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.
- a gas volume is arranged, in which a
- Ejection side of at least one nozzle of the at least one printhead prevails. More preferably, the at least one first gas line and the at least one
- Gas chambers are ensured, but also for example, when closing the first and second valve, a pressure and the at least one normal supply can be increased, while in the third gas space, a pressure equalization, for example, during a Abpumpvorgangs is made possible.
- at least two normal stocks are movably arranged together with a same at least one nozzle bar and each of these is at least two
- a uniform hydrostatic pressure in all printheads can be achieved, even if they are arranged at different heights.
- 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.
- the printing press is characterized in that the printing press at least a first printing unit and at least one supply system for
- 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 one first fluid line with the at least one
- Normal supply is connected and / or arranged connectable and that the at least one normal supply via at least one supply line and at least one derivative is connected to 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 one latch is connected and / or arranged connectable.
- the printing press is characterized in that an ejection direction of at least a first nozzle of the at least one first print head in the first Printing position extending from an ejection direction of this at least one first nozzle of the at least one printhead 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 ° different.
- this applies analogously to all at least four print heads.
- 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.
- 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 region of the at least one print head having
- Fig. 1a is a schematic representation of a roll printing machine
- Figure 1 b is a schematic representation of a roll printing machine with alternative web guide.
- Fig. 2 is a schematic representation of a part of a printing unit with a
- Fig. 3 is a schematic representation of a printing unit having a plurality of nozzle bars, the print heads are arranged in printing positions;
- FIG. 4 shows a schematic representation of a printing unit with a plurality of nozzle bars, whose print heads are arranged in rest positions, in particular maintenance positions, wherein positioning drives are shown interrupted for the sake of clarity;
- Fig. 5 is 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;
- Fig. 6 is 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 of For clarity, are shown interrupted;
- Fig. 7a is a schematic representation of a printing unit with a plurality of nozzle bars whose printheads partially in maintenance positions and partially in
- Mounting positions are arranged, wherein positioning drives of
- 7b is a schematic representation of a printing unit with a plurality of nozzle bars, wherein positioning drives are shown interrupted for the sake of clarity;
- Fig. 7c is a schematic representation of a printing unit with a plurality of nozzle bars, wherein positioning drives are shown interrupted for the sake of clarity;
- Fig. 8a is a schematic representation of a supply system for
- 8b is a schematic representation of an alternative supply system for coating agent
- Fig. 9a is a schematic representation of a printing unit with four
- Positioning devices and four maintenance devices wherein by means of the two right positioning devices printheads are arranged in printing positions and by means of the two left positioning devices printheads in example designed as mounting positions
- Fig. 9b is a schematic representation of a printing unit according to FIG. 9a, wherein by means of the two right positioning devices printheads are arranged in printing positions and by means of the two left positioning devices
- Printheads are arranged in maintenance positions and the two left maintenance devices are in use positions.
- a printing press 01 has at least one printing material source 100, at least one first printing unit 200, preferably at least one first dryer 301, preferably at least one second printing unit 400 and preferably at least one second dryer 331 and preferably at least one post-processing device 500.
- Printing machine 01 is also preferably designed as an inkjet printing machine 01.
- the printing machine 01 is designed as a roller printing press 01, more preferably as a roller inkjet printing machine 01.
- the printing press 01 is designed, for example, as a rotary printing press 01, for example as a rotary rotary printing press 01, in particular a rotary rotary inkjet printing machine 01.
- the printing material source 100 is known as
- Roll-out device 100 is formed.
- the printing material source 100 is designed as a sheet feeder.
- At least one printing material 02 is preferably aligned in the printing material source 100, preferably with respect to at least one edge of this printing material 02.
- at least one web-shaped printing substrate 02 ie a printing material web 02, for example a paper web 02 or a textile web 02 or a foil 02, for example a
- Plastic film 02 or a metal foil 02 unwound from a Beyakstoffrolle 101 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 rotational axis 1 1 1 of a Beyakstoffrolle 101 and / or at least one Betikstoffleitelements 201; 401, for example at least one central cylinder 201; 401 extends.
- a transport route 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 through the at least one first printing unit 200, where the printing substrate 02 and in particular the
- Substrate web 02 preferably by means of at least one ink at least on one side and preferably in combination with the at least one second printing unit 400 is preferably provided on two sides with a printed image.
- the transport path of the printing substrate 02 and in particular of the printing material web 02 preferably passes through the at least one first dryer 301 in order to dry the applied printing ink.
- ink is in the foregoing and hereinafter generally a
- the at least one first dryer 301 is part of a dryer unit 300.
- the printing substrate 02 and in particular the printing material web 02 is preferably the at least one post-processing device 500 is supplied and further processed there.
- the at least one post-processing device 500 is designed, for example, as at least one folding device 500 and / or as a take-up device 500 and / or as at least one planned delivery 500.
- the printing substrate 02 which is preferably printed on two sides, is preferably further processed into individual printed products.
- At least the first dryer 301 and / or after the at least one first dryer 301 is preferably at least the second printing unit 400 along the transport path of the printing substrate 02 and in particular of the printing substrate 02 by the printing machine 01 after the at least one first printing unit 200 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, the at least one post-processing device 500 is preferably arranged. This ensures that a double-sided printing of the printing substrate 02 and in particular the printing material web 02 is made possible in high quality.
- Betigstoffrollen 101 which are preferably used in the Rollenabspulvorraum 100 used, preferably each have a sleeve on which the web-shaped substrate 02 is wound for use in the roll printing machine 01.
- 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.
- Rollenabspulvoride 100 is at least one Be horrstofrolle 101 rotatable
- the Rollenabspulvorraum 100 is adapted to receive a Beyakstoffrolle 101 suitably, so has only one storage position for a printing material roll 101.
- the Rollenabspulvortechnisch 100 is designed as a roll changer 100 and has
- the roll changer 100 is designed such that it enables a flying roll change, that is to say a joining of a first printing material web 02 to a current one
- 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 through the at least a first printing unit 200 extends, more preferably in the axial direction A.
- the working width of the printing machine 01 preferably corresponds to a maximum width, which may have a substrate to still be processed with the printing press 01 can, so a maximum with the printing machine 01st processable substrate width.
- the roll-off device 100 preferably has at least one roll holding device 103 per storage position, which is designed, for example, as a clamping device 103 and / or as a clamping device 103.
- the at least one roll holding device 103 per storage position, which is designed, for example, as a clamping device 103 and / or as a clamping device 103.
- Roller holding device 103 at least a first motor-driven rotary body 103.
- the at least one roller holding device 103 is used for a rotatable mounting of at least one Bedruckstoffrolle 101.
- the at least one roller holding device 103 preferably has at least one drive motor 104.
- the Rollenabspulvortechnisch 100 along the transport path of
- This tension roller 118 preferably has its own drive motor 146 designed as a traction drive motor 146, which is preferably connected to a machine control.
- the tension roller 1 18 preferably represents at least a second motor-driven rotary body 1 18.
- a web tension is adjustable and durable within limits and / or the web tension is preferably kept within limits.
- the Rollenabspulvorraum 100 has an adhesive and cutting device by means of a role change flying, ie can go without stopping the printing material 02 vonstatten.
- the first web edge aligner 1 14 below, the infeed 139 is preferably arranged.
- the at least the draw roller 1 18 is preferably arranged, with which preferably the Switzerlandpresseur 1 17 together the Einzugspalt 1 19 is arranged forming.
- the draw-in gap 1 19 serves to regulate a web tension and / or a transport of the printing material 02.
- the web tension can be measured by means of the at least one first measuring device 141 designed as a first measuring roller 141.
- the at least one first measuring device 141 designed as a first measuring roller 141 is preferably arranged in front of the drawing-in gap 19 in the transport direction of the printing material web 02.
- a first printing unit 200 is the Rollenabspulvortechnisch 100 with respect to
- the first printing unit 200 has at least one printing material guide element 201. This is preferably at least one
- Bescherstoffleitelement 201 as at least one first central pressure cylinder 201 or short central cylinder 201 formed. If in the following a central cylinder 201 is mentioned, then a pressure central cylinder 201 is always meant.
- the at least one first central cylinder 201 preferably provides at least a third motor-driven one
- Rotational body 201 The printing substrate 02 wraps around the first central cylinder 201 at least partially in the printing operation.
- a wrap angle is preferably at least 180 ° and more preferably at least 270 °.
- Wrap angle is the angle measured in the circumferential direction
- a partial surface of a cylinder jacket surface of the at least one first central cylinder 201 provided as a contact surface between the at least one first central cylinder 201 and the printing material 02 which is preferably designed as a printing material web 02 the wrapping angle around the at least one first central cylinder 201, which is preferably at least 180 ° and more preferably at least 270 °.
- At least one second measuring device 216 which is preferably designed as a second measuring roller 216, is preferably arranged for measuring the web tension.
- at least one first printing material preparation device 202 or web preparation device 202 is arranged to act on the printing material web 02 and / or aligned with the intended transport path of the printing material web 02.
- Substrate preparation device 202 is associated with at least one first side and preferably both sides of the printing material web 02 and in particular at least on this first side of the printing material web 02 and preferably on both sides of
- Printing substrate 02 acting and / or effective aligned Preferably, along the transport path of the printing substrate 02 between the first Brukantenausrichter 1 14 and the at least one first central cylinder 201 of the draw roller 1 18 and the Switzerlandpresseur 1 17 formed feed nip 1 19 is arranged.
- the at least one first substrate preparation device 202 is arranged in a preferred embodiment along the transport path of the printing substrate 02 after the nip 1 19 and before the first central cylinder 201 acting on the substrate web 02 and / or aligned with the transport path of the printing substrate 02.
- the at least one first substrate preparation device 202 is at least one substrate cleaning device 202 or
- Web cleaning device 202 is formed.
- the at least one printing substrate preparation device 202 is at least one
- Coating agents Such a coating serves, for example, a primer (Primer).
- a primer Primer
- Substrate preparation device 202 as at least one corona device 202 and / or discharge device 202 for corona treatment of the printing substrate 02 formed.
- a roller 203 formed as a first deflecting roller 203 is the first one
- This first guide roller 203 is preferably of the first
- Zentraizylinder 201 arranged spaced.
- Substrate web 02 is to be understood as a smallest dimension of the printing material web 02.
- the printing material web 02 preferably wraps around a part of the first
- a lateral surface of the deflection roller 203 preferably consists of a comparatively inelastic material, more preferably a metal, even more preferably steel or aluminum.
- At least one first cylinder 206 designed as the first impression roller 206 is arranged in the first pressure unit 200.
- the first impression roller 206 preferably has a lateral surface which consists of an elastic material, for example an elastomer.
- the first impression roller 206 is preferably adjustable by means of a Anstellantriebs to the first Zentraizylinder 201 and / or disposed thereof ab plausible.
- the first impression roller 206 In a state applied to the first Zentraizylinder 201, the first impression roller 206 preferably forms a first impression gap 209 together with the first Zentraizylinder 201.
- the printing substrate 02 passes preferably in the printing operation, the first impression gap 209.
- the printing substrate 02 is preferably flat and more preferably applied in a unique and known position to the first central cylinder 201.
- the printing substrate 02 is preferably flat and more preferably applied in a unique and known position to the first central cylinder 201.
- the axis of rotation of the first impression roller 206 is below the axis of rotation
- the first central cylinder 201 preferably has its own, the first central cylinder 201 associated with the first drive motor 208, which is preferably designed as an electric motor 208 and is further preferably formed as a direct drive 208 and / or individual drive 208 of the first central cylinder 201.
- a direct drive 208 is to be understood as meaning a drive motor 208 which is in torque transmitting and / or transferable connection without the interposition of further rotational bodies in contact with the printing material 02 with the at least one first central cylinder 201.
- a single drive 208 is to be understood as a drive motor 208, which is designed as the drive motor 208 exclusively of the at least one first central cylinder 201.
- the first drive motor 208 of the first central cylinder 201 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.
- a first rotation 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.
- the first drive motor 208 of the first central cylinder 201 is connected to the machine control such that the
- Machine control due to 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 on 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.
- a region of the machine control which prescribes the rotational angle position or rotational position of the first central cylinder 201 and / or the first drive motor 201 is preferably connected directly to a region of the machine control system which controls at least one print head 212 of the first printing unit 200, in particular without an interposed sensor.
- At least one first printing unit 21 1 is located within the first printing unit 200.
- at least one first printing unit 21 1 is located within the first printing unit 200.
- the at least one first printing unit 21 1 is preferably in the direction of rotation of the first central cylinder 201 and thus along the transport path of
- Substrate web 02 after the first impression roller 206 preferably arranged on the at least one first central cylinder 201 acting and / or operative and / or arranged and / or alignable.
- the at least one first printing unit 21 1 is formed as a first ink-jet printing unit 21 1 and is also called first ink-jet printing unit 21 1.
- the first printing unit 21 1 preferably has at least one nozzle bar 213 and preferably several, in particular four, nozzle bars 213.
- the at least one first printing unit 21 1 and thus the at least one first printing unit 200 preferably has the at least one first printhead 212, which is designed as an inkjet printhead 212.
- the at least one nozzle bar 213 in each case has at least one print head 212 and preferably in each case a plurality of print heads 212.
- Each print head 212 preferably has a plurality of nozzles, from which
- a nozzle bar 213 is in this case a component which is preferably more than at least 80% and more preferably extends at least 100% of the working width of the printing press 01 and serves as a carrier of the at least one print head 212.
- an axial length of the bale of the at least one first central cylinder 201 is at least as great as the working width of the printing press 01.
- Printing unit 21 1 arranged. Each nozzle is preferably a unique one
- each target region of a nozzle is in particular based on the circumferential direction of the at least one first
- Central cylinder 201 clearly defined at least in the printing operation.
- a target area of a nozzle is that which is in particular substantially rectilinear
- the at least one first nozzle bar 213 preferably extends orthogonally to the transport path of the printing material 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 nozzle openings at regular intervals over the entire working width of the printing machine 01 and / or width of the bale of the at least one first central cylinder 201.
- a single continuous print head 212 is arranged for this purpose, which extends 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.
- the at least one row of nozzles is preferably designed as at least one linear, over the entire width of the printing material 02 in the axial direction A extending juxtaposition of individual nozzles.
- in the axial direction A in the axial direction A
- print heads 212 are arranged on the at least one nozzle bar 213.
- individual printheads 212 are not up to one edge of their housing are provided with nozzles, are preferably at least two and more preferably exactly two extending in the axial direction A rows of
- Printheads 212 arranged in the circumferential direction of the first central cylinder 201 offset from one another, preferably so that in the axial direction A successive printheads 212 preferably alternately belong to one of the at least two rows of printheads 212, preferably always alternately a first and a second of two rows of printheads 212nd 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 in the sum of a plurality of individual, more preferably two, circumferentially staggered juxtapositions of nozzles.
- a print head 212 has a plurality of nozzles, then all target areas of the nozzles of this print head 212 together form a working area of this print head 212.
- Working areas of print heads 212 of a nozzle bar 213 and in particular a double row of print heads 212 adjoin one another and / or overlap in the axial direction A. seen in the axial direction A. In this way, even when the print head 212 is not continuous in the axial direction A, target areas of nozzles of the at least one nozzle bar 213 and / or in particular of each double row of print heads 212 are located at regular and preferably periodic intervals in the axial direction A.
- an entire working area of the at least one nozzle bar 213 preferably extends 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. or both sides with respect to the axial direction A, a narrow portion of the
- Substrate web 02 and / or the bale of the first central cylinder 201 may be present, which does not belong to the working area of the nozzle bar 213. An entire
- Working range of the at least one nozzle bar 213 is preferably from all
- Printheads 212 this at least one nozzle bar 213 composed.
- an entire working area of a double row of print heads 212 in the axial direction A corresponds to the working area of the at least one nozzle bar 213.
- the at least one nozzle bar 213 preferably has a plurality of rows of nozzles in the circumferential direction with respect to the at least one first central cylinder 201.
- each print head 212 has a plurality of nozzles, which are further preferably arranged 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, such columns preferably further obliquely to the circumferential direction are arranged extending, for example, to increase a resolution of a printed image.
- Circumferentially arranged on the at least one central cylinder 201 a plurality of rows of print heads 212, more preferably four double rows and still more preferably eight double rows of print heads 212 successively arranged. More preferably, at least in the printing operation in the circumferential direction with respect to the at least one first central cylinder 201 a plurality of rows of printheads 212, more preferably four double rows and still more preferably eight double rows of printheads 212 arranged successively aligned on the at least one first central cylinder 201.
- the print heads 212 are preferably aligned, at least in the printing operation, such that the nozzles of each print head 212 point in the radial direction toward the cylinder jacket surface of the at least one first central cylinder 201. 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
- the printing head 212 aligned with the at least one first central cylinder 201 is aligned with the rotational axis 207 of the at least one first central cylinder 201 in a radial direction on the lateral surface of the at least one first central cylinder 201. In this case, this radial direction is a radial direction relative to the axis of rotation 207 of the at least one first central cylinder 201.
- Double row of printheads 212 is preferably associated with and / or assignable to an ink of a specific color, for example one of the colors black, cyan, yellow and magenta or a lacquer, for example a clear lacquer.
- the corresponding inkjet printing unit 21 1 is preferably formed as a four-color printing unit 21 1 and allows a one-sided four-color printing of the printing substrate 02. It is also possible to print fewer or more different colors with a printing unit 21 1, for example, additional spot colors.
- correspondingly more or fewer printheads 212 and / or double rows of printheads 212 are arranged within this corresponding printing unit 21 1.
- Printheads 212 successively on at least one surface at least one
- Transmission body arranged for example at least one transfer cylinder and / or at least one transmission belt aligned.
- the at least one print head 212 preferably operates to generate ink droplets by the drop-on-demand method, in which ink droplets are generated selectively as needed.
- 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 piezoelectric element is on the travel of the
- Piezoelements and thus the reduction of the volume and thus the size of the Ink drops influenced. 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.
- Central cylinder 201 set. By individual control of each nozzle ink droplets are transmitted from the at least one print head 212 to the printing substrate 02 only at selected times and at selected locations. This is done as a function of the rotational speed and / or the rotational angle position of the at least one first central cylinder 201, a distance between the respective nozzle and the printing substrate 02 and the position of the target area of the respective nozzle with respect to the circumferential angle. This results in a desired printed image, which is designed as a function of the control of all nozzles.
- Ink droplets from the at least one nozzle of the at least one print head 212 are preferably carried out as a function of the value predefined by the machine control
- Machine control to the first drive motor 208 preferably includes predetermined target data of the rotational position of the first drive motor 208 in real time in a calculation of data for controlling the nozzles of the at least one printhead 212. A comparison with actual data of the rotational position of the first drive motor 208 is preferred 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-compatible and / or register-compatible printed image.
- the nozzles of the at least one print head 212 are arranged such that a distance between the nozzles and the printing material web 02 arranged on the cylinder jacket surface of the at least one first central cylinder 201 at least in one
- Printing position arranged print head 212 is preferably between 0.5 mm and 5 mm and more preferably between 1 mm and 1, 5 mm.
- the high angular resolution and / or the high sampling frequency of the rotation angle sensor and / or the high accuracy of the predetermined by the machine control and processed by the first drive motor 208 of the first central cylinder 201 target data to the rotational position of the first
- a drop flight time between the nozzles and the printing material web 02 is known, for example, by a teaching process and / or by the known distance between the nozzles and the printing material web 02 and a known drop speed. From the rotational angle position of the at least one first central cylinder 201 and / or the first drive 208 of 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 an ideal time to eject a respective drop determined, so that a passer-friendly and / or register-oriented imaging of the printing substrate 02 is achieved.
- 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 group 21 1.
- 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, for example, as at least one CCD sensor and / or formed as at least one CMOS sensor.
- a first print image sensor is arranged, the sensor field of which covers the entire width of the transport path of the printing material web 02.
- a first print image sensor is arranged, which is designed to be movable in the direction A orthogonal to the direction of the transport path of the printing substrate 02.
- a plurality of print image sensors are arranged, whose respective sensor fields each comprise different regions of the image sensor
- Transport path of the printing substrate 02 include. Preferably, these areas are arranged offset in the direction A orthogonal to the direction of the transport path of the printing substrate 02 to each other. Preferably, an entirety of the sensor fields of the plurality of print image sensors comprises an entire width of the transport path of the
- a ply of pixels formed by ink droplets originating from a respective first printhead 212 is preferably compared to a ply of pixels formed by ink drops emerging from a respective second one in the circumferential direction of the at least one first central cylinder 201 originate the printhead 212 lying printhead 212 respectively. This is preferably done regardless of whether these each first and second, in the circumferential direction of the at least one first central cylinder 201 successive and / or acting print heads 212 a same or a different ink
- a tuning of the layers of printed images from different printheads 212 is monitored. For the same printing inks is a Registered merging of sub-images 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.
- all printheads 212 are stationary. This ensures a permanent passport-oriented and / or register-oriented alignment of all nozzles. Different situations are conceivable in which a movement of the print heads 212 is necessary. A first such situation makes a flying
- Reel change or generally a roll change with bonding process In this case, a printing substrate 02 is connected by means of an adhesive strip with another printing material 02. This results in a connection region which has to pass through the entire transport path of the printing material web 02. This connection region has a thickness, ie a smallest dimension, which is greater than a thickness of the printing material web 02. Essentially, the bonding region is as thick as two printing substrate webs 02 and the adhesive strip together. As a result, difficulties may arise when the connecting portion passes through the gap between the nozzles of the printing heads 212 and the cylindrical surface of the at least one first central cylinder 201.
- the at least one nozzle bar 213 is therefore movable in at least one setting direction and / or along at least one travel relative to the axis of rotation 207 of the at least one first central cylinder 201. In this way, the distance can be sufficiently increased, but must be subsequently reduced accordingly again. A second such situation results, for example, in the maintenance and / or cleaning of at least one of the print heads 212.
- the print heads 212 are preferably fastened individually to the at least one nozzle bar 213 and individually detachable from the at least one nozzle bar 213. This allows individual printheads 212 to be maintained and / or cleaned and / or replaced.
- At least one sensor preferably detects a position of the target area of at least one new and / or re-arranged print head 212 relative to a position of the target area of at least one printhead 212 already attached.
- An installation position of the at least one newly and / or re-arranged printhead 212 in the circumferential direction with respect to at least a first central cylinder 201 can be on the
- Control of the nozzles of this printhead 212 compensate, preferably analogous to the already described adaptation of printheads 212 different double rows of printheads 212.
- print heads 212 each have their own adjustment mechanism, more preferably, all print heads 212 each have their own adjustment mechanism.
- the printing machine 01 has at least one supply system 251 for
- Coating in particular at least one ink supply system 251 on.
- a plurality of print heads 212 for example a plurality of print heads 212 a common nozzle bar 213, in particular a plurality or more preferably all print heads 212 each of a double row of print heads 212, a common supply system 251 for coating agent. That at least one
- Supply system 251 and in particular the common supply system 251 for coating agent preferably has at least one normal supply 252, in particular at least one normal supply 252 for coating agent.
- At least one preferably designed as a color line 253 liquid line 253 per printhead 212 is connected to the at least one normal supply 252.
- each of at least two print heads 212 is preferably connected and / or connectable, in each case, directly to the at least one normal supply 252 via at least one first liquid line 253.
- the respective first liquid line 253 may, for example, be a flexible line, in particular at least one tube.
- the at least one normal supply 252 is at least one supply line 254 and at least one derivation 256 directly or via intermediate components 263; 280; 285; 295 such as at least a second check valve 263 and / or at least one
- an extension of an inner space of the at least one normal supply 252 in the axial direction A is at least as large as 50% of the measured in the axial direction A width of the working region of the at least two print heads 212 having nozzle beam 213 and / or at least 50% of the maximum with the
- Printing machine 01 processable width of substrate defined working width of the printing press 01.
- Printheads 212 associated with different inks are oriented at different angles to a vertical, as in this case different heights of liquid columns result for relevant hydrostatic pressures.
- 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
- Print positions and / or rest positions are therefore two
- Printing unit 200; 400 each one return accumulator 295 per jet beacons 213 and / or per positioning device 217; 218; 219; 221, which is at least indirectly connected to four normal stocks 252.
- the normal supply 252 preferably has at least one printing operation and more preferably one that is within a narrow tolerance range
- Deviations constant level can be realized, for example, by an influx of printing ink and an overflow outlet 258.
- An overflow drain 258 is to be understood as an outflow which defines a maximum height of a fill level, in particular of the normal supply 252. 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 is preferred.
- a passive overflow drain 258 is preferably an overflow drain 258, which essentially consists of an opening, the lower edge of which is arranged at a certain height and which thereby defines a maximum fill level.
- the at least one normal supply 252 and / or the at least one discharge 256 has at least one preferably passive overflow drain 258, the outflow side of which is preferably directly or via interconnected components 263, 280; 285; 295 is connected to the at least one buffer 257 and / or connectable, more preferably the at least one same buffer 257, with which the at least one normal supply 252 is also connected and / or connectable via the at least one supply line 254.
- At least one filter device 259 and / or at least one degassing device 261 and / or at least one damping device 299 for damping pulsations is preferably arranged along the at least one feed line 254.
- at least one preferably designed as a first check valve 262 valve 262 is disposed within the at least one feed line 254 and / or at least one preferably formed as a second check valve 263 valve 263 is disposed within the at least one derivation 256.
- At least one feed line 254 At least one first is preferred
- Liquid pump 264 arranged. It is preferably conveyed constant coating agent, in particular printing ink in the normal supply 252, wherein excess coating agent is discharged through the at least one overflow drain 258 and a height level of the coating agent in the normal supply 252 by a
- a controlled and / or regulated normal pressure preferably prevails in the normal reserve 252, 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 there is a constant pressure within the coating agent at the nozzle openings of the print heads 212.
- constant operating conditions for the printheads 212 are ensured.
- At least one gas volume is preferably arranged in at least one first gas space 266 of the at least one normal reservoir 252, 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 212.
- Vacuum is preferably between 4 kPa (four kilopascals), ie 40 mbar (forty millibar) and 6 kPa (six kilopascals), ie 60 mbar (sixty millibars), 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). Attention is paid to an installation position of the print head 212 when adjusting the pressure because its inclined position to a different height level and thus to a
- the at least one normal reserve 252 preferably extends over at least 50%, more preferably at least 75% and even more preferably at least 90% of a working region width of the at least one nozzle bar 213 in the axial direction A and / or the working width of the printing machine 01.
- At least one return accumulator 295 is preferably arranged in the at least one derivation 256, more preferably at a lower level than the at least one
- At least one return pump 285 is preferably arranged, for example, to convey coating agent back into the preferably higher intermediate storage 257.
- the at least one intermediate store 257 is arranged higher than the at least one normal store 252.
- At least one return valve 280 is preferably arranged along the at least one discharge 256 before or preferably after the at least one return pump 285. 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 264 is preferred
- Coating agent such as ink from the buffer 257 pumped into the normal supply 252.
- at least one and preferably exactly one volume provided as the first gas space 266 is arranged in the at least one normal reserve 252.
- the at least one first gas space 266 is preferably via at least one 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 are formed.
- In the at least one first gas line 267 is preferably at least one liquid trap 293, in particular
- Coating agent trap 293 arranged.
- the same normal pressure prevails in a second gas space 269 of the intermediate store 257 as in the at least one first gas space 266 of the at least one normal store 252.
- This is for example by connecting the second gas space 269 by means of at least one second gas line 271 to 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.
- At least one return accumulator 295 at least one third is preferred
- Gas space 290 provided. Preferably prevails in the third gas space 290 of the
- This is, for example, by connecting the third gas space 290 by means of at least one compensation line 286 to 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 realized the at least one vacuum controller 277.
- the at least one compensation line 286 preferably has at least one liquid trap 293, in particular
- the at least one liquid trap 293, for example coating agent trap 293, is designed, for example, as at least one cavity which has an inlet and an outlet.
- the input is preferably at a distance above one 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 one
- 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.
- 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 lockable and / or to a pump
- At least one vacuum pump 268 is arranged, with which at least one vacuum feed line 278 is connected to the at least one vacuum buffer 276.
- the at least one vacuum buffer 276 is preferably connected via at least one degassing line 279 with the at least one degassing device 261 and / or arranged connectable.
- the at least one vacuum buffer 276 is preferably connected and / or connectable via at least one vacuum line 281 to at least one vacuum regulator 277, which preferably is connected to an environment via at least one supply air filter 292 and / or connectable.
- At least one normal pressure line 282 preferably connects the at least one vacuum regulator 277 with at least one
- the vacuum regulator 277 is preferably used to adjust the pressure in the at least one normal pressure line 282 to the normal pressure, in particular by admixing, for example, under atmospheric pressure standing ambient air to the air coming from the vacuum buffer 276.
- the at least one pressure regulator 283 is preferably arranged connected to at least one compressed air source 284, for example at least one air pump 284 or to an atmospheric connection 284.
- the at least one pressure regulator 283 is over the at least one first Gas line 267 connected to the at least one first gas space 266 of the at least one normal supply 252 and / or arranged connectable.
- the pressure regulator 283 optionally the normal pressure or an overpressure in the first gas line 267 and thus in the first gas space 266 of the normal supply 252 can be generated.
- Any occurring gas volumes, which are enclosed when the system is filled with coating agent, can preferably be pumped off by means of respective compensation lines 286 and / or at least be acted upon by the respective normal pressure.
- Such gas volumes may occur, 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 reservoir 295.
- the at least one buffer 257 is at least one
- Buffer memory 272 connected, more preferably via at least one supply line 273.
- the at least one latch 257 via at least one formed as a suction 273 supply line 273 to the at least one buffer memory 272 is connected.
- the supply line 273 has 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.
- the buffer memory 272 is connected and / or connectable, for example, to a replaceable storage container 274, which may also supply, for example, other printheads 212 and / or other nozzle bars 213 and / or other printing units 200; 400 and / or other printing machines 01 can serve.
- the at least one buffer memory 272 is via at least one second supply line 273,
- suction line 273 connected to at least one further latch 257 and / or connectable, the at least one further, for example, second pressure unit 200; 400 of the printing machine 01 is assigned.
- at least one supply line 289 and at least one supply valve 291 are arranged along at least one supply line 288 between the at least one storage container 274 and the at least one buffer store 272.
- the at least one buffer memory 272 has at least one overflow 287 via which excess coating agent can flow off in an emergency, for example in the event of a malfunction of the at least one supply pump 289 and / or of the at least one supply valve 291. In this way, in particular, the normal pressure is adversely affected could be.
- Coating agent is made by the supply pump 296.
- per printing unit 200; 400 and coating agent in each case at least one, and more preferably exactly one buffer 257 arranged. Preferred is ever
- Printing unit and coating agent in each case at least one normal stock 252 and more preferably exactly four normal stocks 252 are arranged. Preference is given to each printing unit and coating agents each at least one and more preferably exactly
- Return accumulator 295 arranged. For example, in a four-color machine with two printing units 200; 400 eight buffers 257 and thirty-two
- Vacuum source 268 arranged.
- each coating agent in particular printing ink for the entire printing machine 01, exactly one storage container 274 and / or exactly one buffer storage 272 are arranged.
- the at least one buffer 257 is stationary relative to a frame 231 of the respective printing unit 200; 400.
- the printing press 01 preferably allows a method for cleaning at least one nozzle of at least two print heads 212 of the printing press 01 formed as inkjet print heads 212, wherein the printing press 01 comprises the at least one
- Supply system 251 which preferably has the at least one normal supply 252 for the at least one coating agent and the at least one buffer 257 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
- each of the at least one first feed line 254 preferably by means of at least one first
- Block valve 262 and each of the at least one derivative 256 is preferably closed by means of the at least one second shut-off valve 263 and wherein subsequently a pressure within the arranged within the at least one normal supply 252 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 ink is conveyed through the at least one nozzle of the at least two print heads 212 and preferably ejected.
- a plurality of print heads 212 for example a plurality of print heads 212 of a common nozzle bar 213, in particular a plurality or more preferably all print heads 212 each of a double row of print heads 212, have a common power supply system.
- at least one common power line of the power supply extends within the respective at least one nozzle bar over at least 50%, more preferably at least 75% and even more preferably at least 90% of a 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.
- Each printhead 212 of this respective at least one nozzle bar 213 preferably has at least one separate voltage line which is connected to this common power line of the voltage supply.
- Each printhead 212 of each respective at least one nozzle bar 213 preferably has at least one own data line which is connected to a computing unit which is outside the working area of the respective at least one nozzle bar 213 with respect to the axial direction A and / or outside each with respect to the axial direction A. arranged for substrate 02 transport path of the printing press 01 is arranged. Thus, at least along a run in the axial direction A. extending portion of the nozzle bar 213 at least one data line each
- Printhead 212 of this at least one nozzle bar 213 parallel to each other.
- the printing machine 01 preferably has at least one printing unit 200; 400, wherein the at least one printing unit 200; 400 at least one, preferably one
- Ejection direction as the ink jet print head 212; 412 formed print head 212; 412 and preferably a plurality, preferably each having an ejection direction, as ink jet print heads 212; 412 formed print heads 212; 412 and preferably at least one about a respective axis of rotation 207; 407 rotatable Betigstoffleitelement 201; 401, by means of which preferably at least one transport path provided for preferably web-shaped printing material 02 is at least partially fixed and / or fixable.
- the at least one nozzle and more preferably each nozzle in each case a relative to the nozzle and the nozzle having printhead 212 clearly defined ejection direction.
- Eject directions of nozzles of a common printhead 212 are aligned parallel to each other.
- the ejection direction of at least one nozzle of the at least one print head 212 is at least in the case of a print head 212 located in a printing position on a lateral surface of the at least one printing material guide element 201; 401
- the at least one printhead 212 is permanently associated 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 print head 212 of the at least one positioning device 217; 218; 219; 221 separable.
- the at least one printing unit 200; 400 at least two and more preferably at least four nozzle bars 213; 413, each at least two
- Printheads 212; 412 have.
- At least one of at least two printheads 212 can be arranged, preferably by means of a positioning device 217 assigned to it, either 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 further preferably by means of a positioning device 217 assigned to it; 218; 219; 221 can be arranged either at least either in a printing position assigned to it or can be arranged in at least one rest position assigned to it.
- the at least one print head 212 is preferably in particular by means of at least one positioning device 217; 218; 219; 221 can be arranged in at least one printing position.
- a printhead 212 arranged in its printing position is characterized in that at least one nozzle of the at least one printhead 212 is conveyed from an intended transport path for printing stock 02 and / or from the printing substrate 02 and / or from a transfer body and / or from the printing substrate guide element 201; 401 has a distance which is at most 5 mm and more preferably at most 1, 5 mm and / or is preferably at least 0.5 mm and more preferably at least 1 mm.
- a printhead 212 arranged in its printing position is distinguished by the fact that a majority of all nozzles of the at least one printhead 212 have a respective ejection direction which is based on a surface normal of a surface element closest to the respective nozzle of the intended transport path for substrate 02 and / or of a surface normal one of the respective nozzle next
- a printhead 212 arranged in its printing position is characterized in that a majority of all nozzles of the at least one printhead 212 have a respective ejection direction which deviates from a vertical direction by at most 30 °.
- an ejection direction of at least one and preferably each nozzle of at least this print head 212 is applied to at least one print material guide element 201; 401 and / or at least arranged a transmission body aligned.
- At least one nozzle of this printhead 212 is arranged in a position provided for printing operation of this at least one nozzle.
- the at least one print head 212 is preferably 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 is serviced can, for example, be cleaned and / or aligned and / or stored in a particular secured against contamination and / or drying out state, in particular without the at least one print head 212 from the printing machine 01 and / or the at least one printing unit 200; 400 to remove.
- Mounting position is preferably a position in which the at least one print head 212 from the printing machine 01 and / or the at least one printing unit 200; 400 and / or taken from the at least one nozzle bar 213 and / or in the
- Printing machine 01 and / or the at least one printing unit 200; 400 and / or the at least one nozzle bar 213 can be used.
- more space is preferably available to access the at least one print head 212, while in the maintenance position, only sufficient space is preferably available to be able to perform internal, in particular automatic, processes within the printing press 01.
- respective rest positions of the print heads 212 are preferably characterized in that different print heads 212 in their respective rest positions at least partially different distances to the intended transport path for substrate 02 and / or to a substrate 02 and / or to a transfer body and / or to the printing material guide 201; 401, in particular central cylinder 201; 401 have.
- respective maintenance positions of the printheads 212 are characterized by that different print heads 212 arranged in their respective maintenance positions have different distances from each other than in their respective print positions and / or in their respective mounting positions.
- respective mounting positions of the printheads 212 are characterized in that different printheads 212 arranged in their respective mounting positions have different distances from each other than in their respective printing positions and / or in their respective servicing positions.
- Lever arms 224 formed positioning guides 224 and, for example, each one preferably designed as a lever arm 224 positioning guide 224 per movable nozzle bar 213 and / or per movable printhead 212 on.
- each one preferably designed as a lever arm 224 positioning guide 224 per movable nozzle bar 213 and / or per movable printhead 212 on.
- the at least one positioning guide 224 than at least one
- Lever arm 224 is formed, the travel of the at least one print head 212; 412 formed as at least a circular arc.
- a pivot axis 227 of the at least one lever arm 224 is arranged parallel to the axial direction A. This ensures that movements of the at least one lever arm 224 and the at least one, for example, arranged thereon printhead 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.
- at least two positioning devices 217; 218 mutually different pivot axes 227 on.
- at least two positioning devices have a common pivot axis 227.
- the at least one positioning device 217; 218, 219; 221 respective maintenance positions of the printheads 212 in that when arranged in its respective maintenance position printhead 212 all nozzles of this printhead 212 ejection directions, up to a tolerance range of preferably at most 20 ° and more preferably at most 12 ° and even more preferably at most 8 ° in have a vertical direction, in particular a vertical downward direction.
- a direction preferably deviates as an arithmetic mean from all ejection directions of all nozzles of the printhead 212, which is arranged in the at least one maintenance position thereof; 412, from the vertical direction by at most 12 °, more preferably at most 8 ° and even more preferably at most 4 °.
- the at least one positioning device 217; 218, 219; 221 respective maintenance positions of the printheads 212 characterized in that nozzles of different printheads 212 arranged in their respective maintenance positions have ejection directions which at different angles to a respective nearest surface element of the intended transport path for printing material 02 and / or Bahnleitelements 201; 401 and / or the transfer body and / or the printing material 02 are oriented, wherein more preferably this difference in the angle is at least 2 °, preferably at least 6 ° and more preferably at least 10 °.
- Preferred is 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.
- the at least one positioning device 217; 218, 219; 221 respective mounting positions of the printheads 212 characterized in that nozzles of different arranged in their respective mounting positions printheads 212 ejection directions that at different angles to a respective nearest surface element of the intended transport path for substrate 02 and / or Bahnleitelements 201; 401 and / or the transfer body and / or the printing material 02 are oriented, wherein more preferably this difference in the angle is at least 2 °, preferably at least 6 ° and more preferably at least 10 °.
- 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.
- the at least one positioning device 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 ejection directions which 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.
- a direction deviates as arithmetic means from all ejection directions of all the nozzles of the printhead 212, which is arranged at least one in its mounting position; 412
- the at least one positioning device 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 which as an arithmetic mean of all ejection directions of all nozzles of the at least one arranged in its mounting position printhead 212; 412 having nozzle bar 213 is determined by a surface normal of the respective nozzle next surface element of the intended transport path for substrate 02 and / or a surface normal of the respective nozzle next surface element of the substrate 02 and / or surface normal of the respective nozzle next surface element of a Transfer body and / or a Betigstoffleitelements 201; 401 deviates by at least 20 ° and more preferably by at least 30 °.
- the at least one positioning device 217; 218, 219; 221 at least one
- Mounting position of at least one printhead 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 from this axial direction A by at most 2 ° Discharge directions of all nozzles of the arranged in its printing position printhead 212 have a horizontal component, which is exactly opposite to a horizontal component, the
- Printhead 212 have. In particular, it is preferred that respective printheads 212 can be transferred from their printing position via their maintenance position into their assembly position by at least one pivoting movement.
- Positioning guides 224 arranged, in particular a respective rail 224 per axial end of the at least one Bedruckstoffleitelements 201; 401, ie a total of at least eight rails 224 per printing unit 200; 400.
- the at least one positioning guide 224 is designed as at least one rail 224, the travel of the at least one print head 212; 412 formed linear.
- a printing press 01 which is at least one printing unit 200; 400 having 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 Betigstoffleitelement 201; 401, wherein each of the at least two, preferably at least three and more preferably at least four print heads 212; 412 by means of a respective, at least this print head 212; 412 assigned
- Positioning device 217; 218; 219; 221 is movably arranged along a respective linear travel. More preferably, the linear travel paths in respective directions of adjustment, 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 further preferably not more than 60 °. Preferably, all positioning directions differed from
- Positioning devices 217; 218; 219; 221 of 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 of 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 212 preferably differ; 412, the
- adjacent positioning devices 217; 218, 219; 221 are assigned to 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 take place only in a plane which is defined by a surface normal, which is parallel to the axial
- Direction A is arranged, in particular in the axial projection plane.
- 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 can be arranged optionally 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 print heads 212; 412 at least one maintenance device 222 of at least a first nozzle of the at least one first print head 212; 412 is assigned and / or can be assigned.
- the one described in the foregoing and hereinafter with regard to the at least one maintenance device 222 preferably applies to each maintenance device 222, in particular also in the case of two, three or four maintenance devices per printing unit 200; 400.
- Maintenance device 222 is preferably movably arranged along at least one provisioning path between at least one parking position and at least one insertion position, in particular by means of at least one feed device 223.
- each maintenance device 222 is preferably assigned its own provision path, its own parking position and its own deployment position.
- An optional component of the respective provision path of the at least one maintenance device 222 in a through the rotation axis 207; 407 of the at least one rotatable Bedruckstoffleitelements 201; 401 fixed axial direction A is preferably at most 50% of one in the axial direction A
- the actuating directions of the linear travel paths are preferably respectively orthogonal and in particular radial to the axis of rotation 207; 407 of the at least one rotatable Bedruckstoffleitelements 201; 401 aligned.
- all printheads 212; 412 in their print positions and their rest positions are preferably respectively orthogonal and in particular radial to the axis of rotation 207; 407 of the at least one rotatable Betigstoffleitelements 201; 401 aligned.
- all printheads 212; 412 in their print positions and their rest positions, in particular
- 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 one positioning drive 226 per movable nozzle bar 213.
- each positioning guide 224 is assigned a positioning drive 226 in each case.
- the at least one positioning drive 226 is designed, for example, as at least one hydraulic cylinder 226 and / or as at least one pneumatic cylinder 226 and / or preferably as at least one electric motor 226.
- the at least one positioning drive 226 is arranged to selectively position the at least one printhead 212 in its printing position or servicing position or its
- the at least one positioning drive 226 is preferably designed as at least one electric motor 226, for example as at least one stepping motor 226, and / or with at least one
- Threaded spindle connected.
- the at least one threaded spindle is preferably in engagement with at least one spindle nut, which is connected to the respective nozzle bar 213.
- At least four positioning devices 217 are preferred; 218; 219; 221, by means of which in each case at least one nozzle bar 213 and / or in particular in each case a plurality of print heads 212 associated with a same printing ink are designed to be jointly movable.
- configurations can thereby be provided in which the print heads 212 of at least one nozzle bar 213 and / or at least one printing ink are arranged in their printing position, while the printing heads 212 of at least one other nozzle bar 213 and / or another printing ink in a rest position, for example a maintenance position are arranged.
- all the printheads 212 of one printing ink for example black
- all printheads 212 of other printing inks are held in a maintenance position and are protected there from drying out and / or cleaned by suitable means, for example.
- At least one first locking element is preferably arranged, for example at least one pressure stop.
- the at least one print head 212 is preferably 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, having the at least one print head 212 and / or the at least one print head 212 Nozzle bar 213 against the at least one
- Pressure stop pulls and / or presses. This ensures that the printing position is reproducible and precisely defined.
- At least one second locking element is arranged, for example at least one assembly stop.
- the at least one print head 212 can preferably be fixed in its mounting position, for example by the at least one positioning drive 226, in particular
- the at least one print head 212 and / or the at least one print head 212 having nozzle bar 213 pulls against the at least one mounting stop and / or pressed.
- at least a third locking element is arranged, for example at least one maintenance stop.
- the at least one print head 212 is preferably 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, having the at least one print head 212 and / or the at least one print head 212 Nozzle bar 213 pulls against the at least one maintenance stop and / or pressed. This ensures that the
- 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
- At least one maintenance device 222 is designed as at least one movable stop, in particular as a maintenance stop.
- At least one maintenance position is preferably at least one
- a position of these respective at least one nozzle with the printhead 212 arranged in the at least one printing position and a position of the respective at least one nozzle differ with the printhead 212 arranged in the at least one maintenance position and / or mounting position and by the rotation axis 207; 407 the at least one, preferably designed as a central cylinder 201
- At least one maintenance device 222 is preferably arranged between at least one nozzle of the at least one printhead 212; 412 and one of these at least one nozzle next region of the substrate 02 provided for the transport path can be arranged and / or arranged and / or at at least one maintenance position arranged 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 an extent in each spatial direction which is greater than 3 mm, more preferably greater than 10 mm.
- the at least one maintenance device 222 preferably has one in the axial direction A.
- the at least one nozzle bar 213 which is at least as large as the working range of the at least one nozzle bar 213 in the axial direction A.
- the at least one nozzle bar 213 is at least as large as the working range of the at least one nozzle bar 213 in the axial direction A.
- Nozzle bar 213 be serviced at the same time. For example, by edge areas and / or housing resulting in each direction even larger dimensions.
- the at least one nozzle bar 213 is preferably completely independent of those components of the printing press 01 movable, the printing material 02 touching and / or the intended transport path of the printing material 02 are arranged tangentially. Thus, cleaning and / or maintenance can be carried out without affecting the printing material web 02 and in particular without having to remove the printing material web 02 from the printing press 01.
- the at least one maintenance device 222 is movable at least orthogonal to the axial direction A.
- a provision path of the at least one maintenance device 222 is determined by at least one feed device 223.
- the at least one feed device 223 is at least one
- the at least one maintenance device 222 is arranged along at least one provision path between at least one
- Parking position and arranged at least one use position movable Preferably, the further preferably determined by the at least one feed device 223
- an optional component of the provision path of the at least one maintenance device 222 in the axial direction A is preferably at most 50%, more preferably at most 20%, still more preferably at most 10%, and still more preferably at most 2% of that in the axial direction A measured width of the working range of the at least one printhead 212 having nozzle beam 213 and / or at most 50%, more preferably at most 20%, even more preferably at most 10% and even more preferably at most 2% defined by the maximum processable with the printing press 01 substrate width Working width of the printing press 01 is.
- a distance of only an optionally present axial movement of the at least one maintenance device 222 if it is present is at most 50%, more preferably at most 20%, even more preferably at most 10% and even more preferably at most 2% in the axial direction A.
- the at least one maintenance device 222 exclusively orthogonal to the axial direction A movable.
- the distance of a movement is in particular a length of a path covered thereby and in this case in particular only the length of a component of the
- an intended relative to the axial direction A position of the at least one maintenance device 222 in its park position differs from a relative 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% more preferably at most 10% and more preferably at most 2% of a measured in the axial direction A width of a 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 further preferably, at most 2% of a working width of the printing machine 01 determined by a maximum print substrate width processable by the printing machine 01.
- Each maintenance device 222 preferably has at least one of its own
- the at least one feed device 223 preferably has at least one feed drive 229 and at least one traction mechanism 228 and / or thruster 228.
- the at least one feed drive 229 is stationary on a frame 231 of 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
- the at least one feed drive 229 is movably arranged in particular together with the at least one maintenance device 222 and the at least one traction means 228 and / or thrust means 228 is stationary and for example at least one rail 228 and / or rack 228 formed.
- the at least one feed device 223 has at least one rotatable threaded spindle, which engages with at least one spindle nut mounted on the respective maintenance device 222 and is rotatably arranged, for example, by means of at least one feed drive 229, which is preferably designed as a stepper motor 229.
- At least two maintenance devices 222 are preferred, which, in particular by means of their respective feed device 223, are different from the at least two, in particular at least four, print heads 212; 412 are assigned and / or can be assigned, at least partially arranged one above the other, at least in their respective parking positions. Further, these are preferably at least two maintenance devices 222, which in particular by means of their respective feed 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 offset relative to each other in a direction orthogonal to the axial direction A relative to each other and / or arranged at a distance.
- nozzle bars 213, 413 are arranged, each by means of a respective positioning device 217; 218; 219; 221 are arranged to be movable from their printing position in a respective linear setting direction.
- four maintenance devices 222 designed as cleaning devices 222 are preferably arranged and arranged individually by means of respective feed devices 223
- the respective feed devices 223 preferably each have two rails 228 arranged on opposite sides of the frame 231.
- the respective feed devices 223 preferably each have at least one feed drive 229 or two feed drives 229 arranged on opposite sides of the frame 231.
- the maintenance devices 222 are preferably arranged symmetrically about a plane of symmetry, which is the axis of rotation 207; 407 of the at least one Bedruckstoffleitelements 201; 401 completely contains.
- the four provision paths are horizontal and at a total of two different heights.
- the maintenance devices 222 are arranged elevated relative to the rails 228 assigned to them.
- the respective ones are preferred
- Maintenance positions of two nozzle bars 213; 413 is disposed at a first common height different from a second common height at 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 room for all maintenance devices 222 in their respective deployment positions, since these deployment positions differ in height and therefore no collision of volumes required by the different service devices 222 is achieved.
- the at least one printhead 212 and more preferably each printhead 212 assigned a unique maintenance position. 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. When the printhead 212 is in its maintenance position, the nozzle bar 213 having the corresponding printhead 212 is preferably pressed against a force by means of the at least one positioning drive 226 and / or by gravity, in particular when the positioning drive 226 is switched off
- the respective positioning drive 226 in each case has at least one stepper motor, by means of which clear positions of the respective maintenance device 222 can be controlled. In this way, a positioning drive 226 and a feed drive 229 are sufficient to reproducibly and accurately position the print heads 212 in their print positions, maintenance positions, and mounting positions.
- each maintenance position of at least one print head 212 is associated with a unique use position of at least one and preferably exactly one maintenance device 222.
- the at least one maintenance device 222 is formed as at least one protective cover 222, more preferably by means of the together with the at least one print head 212; 412 a closed volume is limited.
- the at least one maintenance device 222 is additionally or alternatively designed as at least one cleaning device 222.
- the at least one maintenance device 222 is designed as at least one inspection device 222.
- Maintenance device 222 at least two or at least three insertion positions and / or be assigned at least one parking position in which the respective maintenance device 222 and more preferably optionally different maintenance devices 222 are arranged and / or can be arranged. Exemplary are for a total of four nozzle bars
- Cleaning area serving area or has.
- the at least one maintenance device 222 can be arranged such that its two areas serving as protective covers are each assigned to a nozzle bar 213, which then preferably disengages the respective positioning drives 226 on the common
- each area serving as protective covers can optionally be assigned to different nozzle bars 213, so that it is possible to arrange individual nozzle bars 213 in the printing position and
- each nozzle bar 213 is assigned its own maintenance device 222 and / or can be assigned and / or assigned to each maintenance device 222 exactly one use position and exactly one parking position in which the respective one
- Maintenance device 222 is arranged and / or can be arranged. A total of four nozzle bars 213 of a printing unit 200 are preferred; 400 in total four
- Maintenance devices 222 are arranged, each having a serving as a protective cover 222 and / or usable area and each as
- the at least one maintenance device 222 can be arranged such that their serve as protective covers 222 areas each associated with a nozzle bar 213, which are then discontinued, for example, with deactivation of the respective positioning 226 on the common maintenance device 222 or by stopping the respective positioning 226th be kept in their maintenance position.
- a cleaning preferably takes place, while the respective maintenance device 222 already serves as a protective cover 222 and / or a cleaning area and a serving as a protective cover 222 area are identical.
- each maintenance device 222 serving as a protective cover 222 is selectively and independently assignable to the respective nozzle bar 213 so as to allow individual nozzle bars 213 to be placed in print position while covering other nozzle bars 213 and protecting them from dehydration, for example.
- the at least one maintenance device 222 is 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 is engageable, at least when the cleaning device 222 is disposed in its use position and the corresponding print head is arranged in its maintenance position.
- the at least one cleaning module 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.
- the at least one contact element is designed as at least one wiper.
- At least one print head 212 When at least one print head 212 is arranged in the print position, at least one nozzle of this at least one print head 212 is preferably below the print head 212
- Deployment path is arranged along which the at least one maintenance device 222 is preferably arranged by means of the at least one feed device 223 preferably between the at least one parking position and the at least one use position movable. At least one is preferably arranged in the rest position Printhead 212 arranged this at least one nozzle above this provision path.
- An adjustment path of at least one print head 212 is preferably a preferred predetermined path along which the at least one print head 212 is movable, in particular around the at least one print head 212 between its print position and its
- the travel of the at least one printhead 212 has no component in the axial direction A that is greater than at most 50%, more preferably at most 20%, still more preferably 10% and even more preferably at most 2% in the axial direction A. measured width of the working range of the at least one print head 212 having nozzle beam 213 and / or at most 50%, more preferably at most 20%, even more preferably at most 10% and even more preferably at most 2% of the maximum with the printing press 01
- an optional component of the at least one print head 212 in the axial direction A is preferably at most 50%, more preferably at most 20%, even more preferably at most 10% and even more preferably at most 2%.
- Printing machine 01 processable substrate width defined working width of the printing press 01 is.
- At least a first of the at least two print heads 212, in particular of the first printing unit 200, is preferably in each case by means of a first associated therewith
- Positioning device 217 optionally at least either in its associated first printing position can be arranged or in a first rest position associated with it, 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 one first of the at least two printheads 212 a first rest distance, in particular maintenance distance and / or mounting distance of 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 has in its first printing position.
- At least one second of the at least two print heads 212, in particular of this first printing unit 200 is preferably either by means of a second positioning device 218 assigned to it at least either in a second printing position assigned to it or in a second rest position associated therewith, in particular
- Maintenance position and / or mounting position can be arranged, wherein in the at least one second rest position, a rest position of at least one second nozzle of the at least two printheads 212 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 212 in its second printing position.
- 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.
- a rest distance is a distance between a position of a nozzle at its resting position, this nozzle having printhead 212 and a position of the same nozzle in his
- Printing position arranged same print head 212.
- the at least one first print head 212 may be arranged, by means of at least one first positioning device 217 assigned to it, optionally at least either in an associated first printing position or in a first printing position assigned to it
- the at least one is preferably second printhead 212 by means of at least one second positioning device 218 assigned to it can be arranged optionally at least either in a second printing position assigned to it or in an associated second rest position, in particular second maintenance position and / or second mounting position.
- the printing machine 01 and even more preferably each printing unit 200; 400 at least two positioning devices 217; 218; 219; 221, which in each case at least one of the at least two print heads 212; is assigned and by means of which the at least two print heads 212; 412 each movable and optionally either at least either in a respective printing position and / or at least one respective
- each printing unit 200; 400 at least four such positioning devices 217; 218; 219; 221 on.
- an ejection direction distinguishes at least a first nozzle of the at least one first print head 212; 412 in the first print position of a Ejection direction of this 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
- a position of the at least one nozzle with the print head 212 arranged in the at least one printing position and a position of the at least one nozzle with the print head 212 arranged in the at least one rest position, in particular maintenance position and / or mounting position differ from those of the at least one axis of rotation of the at least one Bechriststoffleitelements 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 in the axial direction A
- a plane in which this distance and / or angle is measured is more preferred this plane is the axial projection plane.
- this printing machine allows a method of positioning at least one of a printhead 212 formed as an ink jet printhead 212
- the at least one print head 212 is preferred; 412 is movable along a travel in a direction of adjustment, wherein the adjustment direction preferably comprises at least one component that is orthogonal to one through the axis of rotation 207; 407 of the at least one Bedruckstoffleitelements 201; 401 fixed axial direction A is oriented.
- 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 print head 212; 412 of 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.
- 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 of 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.
- 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 arranged outside the working range of a nozzle bar 213 having the at least one print head 212 and / or outside a working width of the printing machine 01.
- the adjustment direction of the at least one print head 212 preferably has at least one component in one direction a normal vector of the at least one printhead 212; 412 next
- the at least one print head 212 is arranged movable away from the intended transport path, in particular for drawing in a printing material web 02 into the printing machine 01 and / or in particular by means of at least one positioning device 217; 218; 219; 221.
- the printing press 01 has at least temporarily and more preferably permanently at least one and more preferably exactly one drawing-in means for drawing in a printing material web 02 along an intended transport path of the printing material web 02.
- At least one printing material web 02 is connected and / or connectable to the at least one retraction means via at least one connecting element which is more preferably designed as at least one drawing-in means, in particular independently of the formation of the at least one retraction means as a drawing tape and / or drawing chain and / or endless drawing-in means and / or or finite retraction agent.
- a pull-in tip is preferably a flat means whose smallest dimension is preferably smaller than 5 mm and which preferably has a substantially triangular shape and at one edge of which an adhesive and / or adhesive is preferably provided and which preferably at least at a tip opposite this edge having a fastening means.
- the adhesive and / or adhesive is preferably used to connect the Einziehspitze with a substrate 02.
- the at least one fastening means is preferably a releasable attachment of the Einziehspitze with the at least one retraction means.
- 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. At least is preferred a Einziehantrieb arranged by means of which the at least one retraction means along the at least one Einziehwegs is movably arranged.
- the at least one retraction means is finally formed.
- at least one Einzieh Grande 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 feed a printing material 02.
- the at least one retraction means is designed as at least one finite pull-in chain.
- the at least one drawing-in means for drawing in a printing material web 02 along the intended transport path of the printing material web 02 is preferably arranged permanently along its at least one drawing-in path inside the printing press 01. More preferably, the at least one retraction means for drawing in a printing substrate 02 along the intended transport path of the printing substrate 02 is permanently along its at least one Einziehwegs within the at least one printing unit 200; 400 of 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.
- the at least one Einziehleitelement is designed as at least one rotatable Einziehleitelement, for example as at least one deflection roller.
- Printing unit 200; 400 of the printing machine 01 for example, as the at least one central cylinder 201; 401.
- a chain rail can also have switches to implement different Einziehwege.
- the at least one preferably endless drawing-in means preferably has in each case at least two and more preferably at least five intended connection 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
- the at least two and more preferably at least five connecting points are connectable.
- the at least two and more preferably at least five connecting points, based on the axial direction A have a distance of at most 10 cm (ten centimeters), more preferably at most 5 cm (five centimeters)
- the at least two and more preferably at least five connection points are arranged at the same position relative to the axial direction A.
- 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).
- the at least one retraction means designed as eyelets and / or hooks
- a hook and / or such eyelet forms, for example, at least one
- 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 Betigstoffleitelement 201; 401 from a rotation axis 207; 407 of the at least one Bechriststoffleitelements 201; 401 viewed from and / or in the axial
- Projection plane considered in an angular range of at least 180 ° and more preferably at least 270 °.
- Einziehstoffs at least along this angular range a radius of curvature, the by 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
- a projection, in particular in the axial projection plane, of the transport path provided for substrate 02 in the axial direction A and a projection, in particular in the axial projection plane, of the retraction path provided in the axial direction A for the at least one retraction means overlap at least partially, more preferably over 25% of a length of the
- This printing machine preferably allows a method for drawing at least one printing material web 02 into at least one printing unit 200; 400 of the printing machine 01, wherein in a shutdown at least one print head 212 formed as an ink jet print head 212 of the at least one printing unit 200; 400 in at least one setting direction and / or along a travel path of an intended transport of at least one printing material 02 is placed and these at least one adjustment direction preferably at least partially and more preferably completely orthogonal to an axis defined by the axis of rotation 207 of at least one Bechriststoffleitelements 201 axial direction A is oriented and wherein thereafter in a Einziehvorgang at least one Einziehstoff along a Einziehwegs by the at least one printing unit 200; 400 is moved while the at least one printing material 02 along a
- the at least one printing material 02 pulls and wherein the Einziehweg and the transport path in the axial direction A seen from each other, more preferably by at least 2 cm, even more preferably by at least 4 cm, more preferably at least 6 cm and even further preferably at least 8 cm.
- To retract the at least one printing material 02 is it is not necessary to move the at least one print head 212 in the shutdown process to its maintenance position and / or mounting position. It is sufficient if there is a sufficiently large distance to the substrate 02 and / or the connecting element in order to protect the at least one print head 212 from damage.
- the at least one print head 212 is then preferably turned 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 and / or positioned in its printing position.
- the at least one retraction means is preferably connected to the at least one printing material web 02 in a joining process, in particular before the drawing-in process by means of at least one connecting element.
- the at least one retraction means in the connection process by means of at least one
- Connecting element at exactly one of the at least two, further preferably at least five provided at the at least one retraction means connecting points connected to the at least one retraction means. Preferably, this happens at least one
- Connecting element a printing position of the at least one print head 212, while this is parked from the intended transport path and / or arranged in at least one rest position.
- the at least one connecting element passes at least one target area of at least one nozzle of the at least one printhead 212.
- no constituent of the at least one retraction means will ever pass a target area of a nozzle of the at least one printhead 212. This means that preferably all constituents of the at least one retraction means bypass any target area of any nozzles of the at least one printhead 212.
- the at least one connecting element with the at least one Bedruckstoffleitelement 201 in particular with the at least one central cylinder 201 in contact.
- the at least one connecting element is preferably provided with at least one
- the at least one retraction means is oriented in the axial direction A toward each target area of each nozzle of each printhead 212; 412 of 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.
- only at least one retraction means is arranged, which is arranged on the axial direction A relative to only one side of the intended transport path for printing material 02 and / or whose Einziehweg runs only on one side of the intended transport path for substrate 02.
- Einziehstoff used which is arranged on the axial direction A relative to only one side of the intended transport path for substrate 02 and / or its Einziehweg runs only on one side of the intended transport path for substrate 02.
- the printing material web 02 is transported further along its transport path and preferably fed to the at least one first dryer 301 of the at least one dryer unit 300.
- the first side of the printing material web 02 printed by the at least one first printing unit 200 is connected between a last contact point of the printing material web 02 with the at least one first central cylinder 201 of the at least one first printing unit 200 and an area of action of the at least one first Trockners 301 with no component of the roller printing machine 01 in contact.
- the second, in particular not printed by the first printing unit 200 the at least one first central cylinder 201 of the at least one first printing unit 200 contacting side of the printing substrate 02 between the last contact point of the printing substrate 02 with the first central cylinder 201 of the at least one first printing unit 200 and the area of action of the at least one first dryer 301 with at least one deflecting roller 214 of the at least one first printing unit 200 and / or with at least one deflecting roller 312 of the at least one first dryer 301 in contact.
- At least one third measuring device 214 which is also preferably designed as a third measuring roller 214, is preferably arranged. This third third measuring device 214, is also preferably designed as a third measuring roller 214, is preferably arranged.
- Measuring device 214 is used to measure the web tension. More preferably, the at least one guide roller 214 of the first printing unit 200 with the third
- Measuring roller 214 formed third measuring device 214 identical.
- the at least one first dryer 301 is preferably as an infrared radiation dryer
- the at least one first dryer 301 preferably has at least one radiation source 302, which is preferably designed as an infrared radiation source 302.
- a radiation source 302, preferably infrared radiation source 302, is a
- Infrared radiation is converted and / or convertible and on the
- Substrate web 02 is directed and / or can be directed.
- Radiation source 302 preferably has a defined area of action.
- the exposure region of a radiation source 302 is in each case the region which contains all the points which, in particular, can be connected in a straight line directly or via reflectors to the radiation source 302 without interruption.
- the area of action of the at least one first dryer 301 is made up of the areas of action of all the radiation sources
- the area of action of the at least one first dryer 301 preferably has at least one of them
- Air is introduced into the interior of the at least one first dryer 301 through at least one ventilation opening.
- water and / or solvent of the printing inks to be removed by the infrared radiation from the printing material web 02 are removed and taken up by the introduced air. This air is then removed through at least one vent opening from the at least one first dryer 301.
- Substrate 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 optionally horizontal
- the intended transport path of the printing material runs along one section at least with a component in the vertical direction upwards.
- the intended transport path of the printing material runs along the other portion at least with a component in the vertical direction downwards.
- this is a portion and the other portion of the intended
- Transport path connected by at least one provided connector of the intended transport path.
- the at least one runs
- the at least one dryer 301 can preferably be made particularly compact.
- At least one first cooling device 303 is preferably arranged in the transport direction of the printing material web 02 after the area of action of the at least one radiation source 302 of the at least one first dryer 301.
- the at least one first first cooling device 303 is preferably arranged in the transport direction of the printing material web 02 after the area of action of the at least one radiation source 302 of the at least one first dryer 301.
- Cooling device 303 preferably has at least one first cooling roller 304 and preferably a first, at least one first cooling roller 304 engageable and / or employeddewalzenpresseur 306 and preferably at least one, to which at least a first chill roll 304 engagable and / or employed Anlenkwalze 307; 308 up.
- Chill roll press 306 are preferably part of a web tension control, that is to say the web tension is arranged in a regulating manner and preferably for this purpose at least partially and / or temporarily connected to the superordinate machine control.
- the at least one first cooling roller 304 preferably constitutes at least a fourth
- the printing material web 02 wraps around 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 cooling roll press 306 preferably forms with the at least one first cooling roll 304 a first cooling roll gap 309 in which the printing material web 02 is preferably arranged and / or which preferably passes through the printing material web 02. In this case, the printing material web 02 is pressed by the cooling roller press 306 to the at least one first cooling roller 304.
- the at least one first cooling roller 304 of the at least one first cooling device 303 is preferably designed as a cooling roller 304 through which a coolant flows.
- At least one second printing unit 400 is preferably arranged along the transport path of the printing material web 02 after the at least one first cooling device 303.
- at least one second printing unit 400 is preferably arranged along the transport path of the printing material web 02, preferably immediately before the at least one second printing unit 400 and preferably after the at least one first dryer 301 and in particular after the at least one first
- Printing unit 200 at least a second Brukantenausrichter arranged, which is preferably designed manually or driven controllable and / or adjustable.
- the at least one second printing unit 400 is constructed analogously to the first printing unit 200.
- the second printing unit 400 has a second central pressure cylinder 401 or short central cylinder 401, which is wrapped in the printing operation of the printing substrate 02, and also preferably with a wrap angle of at least 180 ° and more preferably at least 270 °.
- the second central cylinder 401 preferably represents a fifth motor-driven rotary body 401.
- the second central cylinder 401 of the second pressure unit 400 preferably has a rotational direction which is opposite to a direction of rotation of the at least one first central cylinder 201.
- a second printing substrate cleaning device 402 or web cleaning device 402 is preferably arranged to act on the printing substrate web 02.
- the printing material web 02 preferably wraps around a part of a second deflecting roller 403 and is deflected by it in such a way that the transport path of the printing material web 02 in the second intermediate space 404 is both tangential to the second deflecting roller 403 and tangent to the second central cylinder 401 runs.
- At least one cylinder 406 designed as a second impression roller 406 is arranged in the second printing unit 400.
- the second impression roller 406 is preferably constructed and arranged analogously to the first impression roller 206, in particular with regard to its mobility and a second impression gap 409.
- the second central cylinder 401 is preferably arranged and constructed analogously to the first central cylinder 201, in particular with respect to a second drive motor 408 of the second Central cylinder
- Central cylinder 401 itself measuring and / or measuring 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
- the at least one second printing unit 41 1 of the at least one second printing unit 400 is preferably identical to the at least one first printing unit 21 1 of the at least one first printing unit 200, in particular with respect to at least one nozzle bar 413, at least one printhead 412 formed as an inkjet printhead 412 and 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 bar 413 and the at least one printhead 412 means of at least one adjustment mechanism with a corresponding electric motor. Also an analogue protective cover and / or
- Cleaning device is preferably arranged. Also, a correct alignment of the printheads 412 of the at least one second printing unit 400 is preferably checked by at least one sensor detecting a printed printed image and the
- 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 one
- Printing unit 41 1 as four-color printing unit 41 1 is formed.
- At least one second dryer 331 is arranged after the at least one second printing unit 400. After the printing substrate 02 has passed the at least one second printing unit 400, the printing material web 02 is transported further along its transport path and preferably fed to the at least one second dryer 331 of the at least one dryer unit 300.
- the at least one second dryer 331 is preferably constructed analogously to the at least one first dryer 301.
- the at least one first dryer 301 and the at least one second dryer 331 are components of the at least one dryer unit 300.
- the second side of the printing material web 02 printed by the at least one second printing unit 400 is between a last contact point of the printing material web 02 with the second central cylinder 401 at least a second printing unit 400 and a Einwirk Scheme the at least one second dryer 301 with no component of the roller printing machine 01 in contact.
- At least one deflecting roller 414 of the second printing unit 400 is preferably arranged.
- This at least one deflecting roller 414 is preferably designed as a fifth measuring device 414, in particular a fifth measuring roller 414.
- the structure of the at least one second dryer 331 is similar to the structure of the at least one first dryer 301, in particular with regard to a for
- Substrate provided transport path and / or training as
- the at least one second dryer 331 preferably has at least one second cooling roller 334, which more preferably has at least one sixth cooling roller 334
- the second cooling roller 334 is driven and / or driven by means of a second cooling roller drive 341.
- the at least one second dryer 331 is constructed essentially and more preferably completely symmetrically relative to the at least one first dryer 301 with respect to the described components.
- the at least one second dryer 331 is preferably part of the same dryer unit 300 as the at least one first dryer 301 and is further preferably arranged in a same housing 329.
- the dryer unit 300 and thus preferably the at least one first dryer 301 and the at least one second dryer 331 are preferably arranged between the at least one first printing unit 200 and the at least one second printing unit 400.
- the at least one pull-out roller 501 preferably has its own drive motor 504 designed as a pull-out roller drive 504.
- the at least one pull-out roller 504 provides preferably at least a seventh motor-driven rotary body 504.
- the at least one pull-out roller 501 preferably forms together with an attached to the at least one pull-out roller 501 and / or adjustable pull-out press 502 a pull-out gap 503, in which the printing material 02 is clamped and funded by the printing material 02 becomes.
- the pull-out gap 503 is preferably used to control a web tension and / or a transport of the printing material web 02.
- Pull-out roller 501 but in particular along the transport path of the printing material 02 after the at least one first dryer 301, is preferably at least one
- Moisture loss of the printing substrate 02 due to the treatment by the dryer unit 300 compensates.
- At least one post-processing device 500 is arranged, which is preferably designed as a folding device 500 and / or a sheet cutter 500 and / or a chart display 500 or as
- Winding 500 is formed. In this and / or through this
- the printing substrate 02 is preferably folded and / or cut and / or stapled and / or sorted and / or enveloped and / or shipped and / or wound up.
- the printing press 01 is designed as a rotary-type rotary inkjet printing machine 01 and is at least one
- substrate web substrate, paper web, textile web, film, plastic film, metal foil
- Clamping device mandrel, clamping cone, clamping shaft; Rotation body, first
- Coating device corona device, discharge device, substrate cleaning device, web cleaning device,
Landscapes
- Ink Jet (AREA)
- Treatment Of Fiber Materials (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102013208754.3A DE102013208754B4 (de) | 2013-05-13 | 2013-05-13 | Druckmaschine und ein Verfahren zum Einziehen einer Bedruckstoffbahn in eine Druckeinheit einer Druckmaschine |
PCT/EP2014/059623 WO2014184130A1 (de) | 2013-05-13 | 2014-05-12 | Druckmaschine und ein verfahren zum einziehen einer bedruckstoffbahn in eine druckeinheit einer druckmaschine |
Publications (2)
Publication Number | Publication Date |
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EP2996879A1 true EP2996879A1 (de) | 2016-03-23 |
EP2996879B1 EP2996879B1 (de) | 2017-03-22 |
Family
ID=50721781
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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EP14723776.2A Active EP2996879B1 (de) | 2013-05-13 | 2014-05-12 | Druckmaschine und ein verfahren zum einziehen einer bedruckstoffbahn in eine druckeinheit einer druckmaschine |
Country Status (5)
Country | Link |
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US (1) | US9643436B2 (de) |
EP (1) | EP2996879B1 (de) |
CN (1) | CN105228833B (de) |
DE (1) | DE102013208754B4 (de) |
WO (1) | WO2014184130A1 (de) |
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DE102015207450A1 (de) | 2015-04-23 | 2016-10-27 | Koenig & Bauer Ag | Druckmaschine mit zumindest einem Druckaggregat und zumindest einer Trocknereinheit und ein Verfahren zum Betreiben einer Druckmaschine |
DE102015215721A1 (de) | 2015-08-18 | 2017-02-23 | Koenig & Bauer Ag | Druckaggregat |
DE102015215717A1 (de) | 2015-08-18 | 2017-02-23 | Koenig & Bauer Ag | Druckaggregat |
DE102015215718B4 (de) | 2015-08-18 | 2019-11-21 | Koenig & Bauer Ag | Druckaggregat mit Gasversorgung und Gasabsaugung |
DE102015215722A1 (de) | 2015-08-18 | 2017-02-23 | Koenig & Bauer Ag | Druckaggregat |
DE102015215719A1 (de) | 2015-08-18 | 2017-02-23 | Koenig & Bauer Ag | Druckaggregat und ein Verfahren zum Anordnen zumindest eines Saugkastens in ein Druckaggregat |
DE102015215723A1 (de) | 2015-08-18 | 2017-02-23 | Koenig & Bauer Ag | Druckaggregat |
DE102015215720A1 (de) | 2015-08-18 | 2017-02-23 | Koenig & Bauer Ag | Druckaggregat |
DE102015215716B4 (de) | 2015-08-18 | 2021-05-12 | Koenig & Bauer Ag | Druckaggregat |
EP3521033B1 (de) * | 2016-09-27 | 2022-09-28 | FUJIFILM Corporation | Flüssigkeitsausstossvorrichtung und verfahren hinsichtlich des schwimmens eines mediums |
EP3735351A4 (de) * | 2018-03-13 | 2021-08-11 | Hewlett-Packard Development Company, L.P. | Automatische neukonfiguration eines webdruckers |
EP3640037B1 (de) | 2018-10-17 | 2023-04-19 | Comexi Group Industries, S.A.U | Digitales druckmodul zum bedrucken eines bandes aus endlosblattmaterial |
WO2020095822A1 (ja) * | 2018-11-08 | 2020-05-14 | 富士フイルム株式会社 | 記録ヘッド洗浄装置、記録ヘッド洗浄方法、及び記録装置 |
EP3670201A1 (de) * | 2018-12-18 | 2020-06-24 | Tetra Laval Holdings & Finance S.A. | Drucksystem |
DE102020105975A1 (de) * | 2020-03-05 | 2021-09-09 | Koenig & Bauer Ag | Druckmaschine |
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EP0610959B1 (de) | 1989-11-22 | 1997-07-23 | Canon Kabushiki Kaisha | Farbstrahlaufzeichnungsvorrichtung |
DE69126447T2 (de) | 1990-02-02 | 1998-01-15 | Canon Kk | Tintenstrahl-Aufzeichnungsgerät |
DE4318299A1 (de) | 1993-06-02 | 1994-12-08 | Roland Man Druckmasch | Einziehvorrichtung und Verfahren zum Einzug von Materialbahnen in eine Druckmaschine |
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DE102010037829A1 (de) | 2010-09-28 | 2012-03-29 | OCé PRINTING SYSTEMS GMBH | Druckwerk für ein Tintendruckgerät |
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DE102011076899A1 (de) | 2011-06-01 | 2012-12-06 | Koenig & Bauer Aktiengesellschaft | Rotationsdruckmaschine |
-
2013
- 2013-05-13 DE DE102013208754.3A patent/DE102013208754B4/de not_active Expired - Fee Related
-
2014
- 2014-05-12 CN CN201480027066.8A patent/CN105228833B/zh active Active
- 2014-05-12 WO PCT/EP2014/059623 patent/WO2014184130A1/de active Application Filing
- 2014-05-12 EP EP14723776.2A patent/EP2996879B1/de active Active
- 2014-05-12 US US14/889,156 patent/US9643436B2/en active Active
Also Published As
Publication number | Publication date |
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WO2014184130A1 (de) | 2014-11-20 |
DE102013208754B4 (de) | 2018-09-13 |
EP2996879B1 (de) | 2017-03-22 |
US9643436B2 (en) | 2017-05-09 |
US20160075154A1 (en) | 2016-03-17 |
CN105228833A (zh) | 2016-01-06 |
CN105228833B (zh) | 2017-07-21 |
DE102013208754A1 (de) | 2014-11-13 |
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