EP3337661B1 - Agrégat d'impression - Google Patents

Agrégat d'impression Download PDF

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Publication number
EP3337661B1
EP3337661B1 EP16747522.7A EP16747522A EP3337661B1 EP 3337661 B1 EP3337661 B1 EP 3337661B1 EP 16747522 A EP16747522 A EP 16747522A EP 3337661 B1 EP3337661 B1 EP 3337661B1
Authority
EP
European Patent Office
Prior art keywords
printing
transport
printing unit
printing head
designed
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.)
Active
Application number
EP16747522.7A
Other languages
German (de)
English (en)
Other versions
EP3337661A1 (fr
Inventor
Hartmut Breunig
Bernd Masuch
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Koenig and Bauer AG
Original Assignee
Koenig and Bauer AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Koenig and Bauer AG filed Critical Koenig and Bauer AG
Publication of EP3337661A1 publication Critical patent/EP3337661A1/fr
Application granted granted Critical
Publication of EP3337661B1 publication Critical patent/EP3337661B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • 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
    • B41J2/135—Nozzles
    • B41J2/165—Prevention or detection of nozzle clogging, e.g. cleaning, capping or moistening for nozzles
    • B41J2/16585—Prevention or detection of nozzle clogging, e.g. cleaning, capping or moistening for nozzles for paper-width or non-reciprocating print heads
    • 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
    • B41J2/135—Nozzles
    • B41J2/165—Prevention or detection of nozzle clogging, e.g. cleaning, capping or moistening for nozzles
    • B41J2/16585—Prevention or detection of nozzle clogging, e.g. cleaning, capping or moistening for nozzles for paper-width or non-reciprocating print heads
    • B41J2/16588—Print heads movable towards the cleaning unit
    • 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
    • B41J2/135—Nozzles
    • B41J2/165—Prevention or detection of nozzle clogging, e.g. cleaning, capping or moistening for nozzles
    • B41J2/16505—Caps, spittoons or covers for cleaning or preventing drying out
    • B41J2/16508—Caps, spittoons or covers for cleaning or preventing drying out connected with the printer frame
    • 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
    • B41J2/135—Nozzles
    • B41J2/165—Prevention or detection of nozzle clogging, e.g. cleaning, capping or moistening for nozzles
    • B41J2/16517—Cleaning of print head nozzles
    • 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
    • B41J2/215—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 by passing a medium, e.g. consisting of an air or particle stream, through an ink mist
    • 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
    • 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
    • B41J2/135—Nozzles
    • B41J2/165—Prevention or detection of nozzle clogging, e.g. cleaning, capping or moistening for nozzles
    • B41J2/16517—Cleaning of print head nozzles
    • B41J2/16552—Cleaning of print head nozzles using cleaning fluids
    • B41J2002/16555—Air or gas for cleaning

Definitions

  • the invention relates to a printing unit.
  • Non-impact printing processes are printing processes that do not require a fixed, i.e. physically unchangeable printing form. Such printing processes can produce different print images in each printing process. Examples of non-impact printing processes are ionographic processes, magnetographic processes, thermographic processes, electrophotography, laser printing and in particular inkjet printing processes or inkjet printing processes. Such printing methods usually have at least one imaging device, for example at least one printhead.
  • such a printhead is designed, for example, as an inkjet printhead and has at least one and preferably a plurality of nozzles, by means of which at least one printing fluid, for example in the form of ink drops, can be selectively transferred to a printing material.
  • the printing material should be as constant as possible from the image-forming device, on the one hand, in order to be able to coordinate the time of image generation and, on the other hand, to avoid damage to the image-forming device.
  • the printing material deforms, for example waves.
  • waves can, on the one hand, harbor the risk of damage to both printheads and the printing material and, on the other hand, can lead to poor print quality, for example because of the different flight times of drops of printing fluid.
  • a printing unit is known in which suction boxes are arranged, each of which extends over an entire working width of the printing unit.
  • Each suction box has a fan that blows air outwards.
  • a pressure unit is arranged with suction boxes, in each of which spacers are arranged in order to reduce a flow cross section and to increase a flow speed, so that condensed solvent does not accumulate in vertically running sections and drips down again.
  • a pressure unit which has a plurality of suction boxes which extend overall over a working width of the pressure unit.
  • a pressure unit which has a suction box with internal separating devices which ultimately open into a single outlet of the suction box.
  • a printing unit which has a plurality of print heads arranged one behind the other in a transport direction, wherein a plurality of traverses arranged one behind the other in the transport direction and extending between side walls of a frame are arranged.
  • a printing unit which has a frame and a frame which can be pivoted thereon, to which printheads are fastened by means of adjusting devices and which has an alignment device for printheads, wherein an operating element can optionally be used, arranged in front of this operating element or after this operating element with respect to a transport direction To influence alignment units.
  • the print heads are arranged on several traverses arranged one behind the other.
  • a printing unit which has a frame with two side walls, between which a transport path of printing material runs at least partially and which has at least two cross members, each of which extends from one side wall to the other.
  • a printing unit which has a cleaning and covering device for print heads, this device being able to be temporarily arranged between print heads in the transport direction.
  • the DE 10 2010 060 406 A1 shows a printing unit with supporting bodies, on which print heads are arranged and which can be vertically parked relative to a frame of the printing unit.
  • a printing unit is known in which printheads are arranged on traverses and can be moved together with them vertically and / or in a transverse direction in order to bring them into contact with closure devices.
  • a printing unit which has a plurality of printing heads one behind the other in the transport direction of a printing material.
  • Devices are arranged between the printheads, which suck in air from below a previous printhead, clean it and blow it in below a subsequent printhead. These devices are arranged on the same traverses as the printheads.
  • a printing unit in which a lifting support frame has a plurality of printing heads arranged one behind the other in the transport direction of a printing material.
  • the invention has for its object to provide a printing unit.
  • a printing press has at least one printing unit.
  • the printing unit preferably has at least one transport path provided for transporting, in particular, web-shaped printing material, by means of which at least one transport direction is defined.
  • the printing unit preferably has at least one printhead.
  • An imaging device for is preferably located under a printhead to understand a non-impact printing process, i.e. a printing process without a fixed printing form.
  • the printing unit preferably has at least two and more preferably even more print heads, in particular ink-jet print heads, arranged one behind the other with respect to the transport direction determined by the transport path provided for in particular a web-shaped printing material.
  • the printing unit preferably has at least one protective cover which is designed to be movable between at least one respective cover position and at least one respective access position.
  • the at least one protective cover preferably has at least one tread surface which is designed, in particular, for entry by at least one operator and / or can be moved together with the at least one protective cover.
  • the at least one tread of the at least one protective cover is preferred at least partially in at least one protective cover arranged in their respective covering position in the vertical direction above at least one of the print heads of the printing unit and further preferably arranged on a side of the at least one protective cover facing away from the at least one print head.
  • the transport direction is preferably that direction which is tangential to a section and / or point of the intended transport path closest to a respective reference point.
  • This respective reference point is preferably at the point and / or on the component that is related to the transport direction.
  • the printing unit is preferably distinguished by the fact that the printing unit has at least three tread surfaces which are designed in particular for entry by at least one operator and / or which can be moved together with the at least one protective cover, each of which is designed to be movable at least between a respective tread position and a respective access position are.
  • the at least one and more preferably each of the at least three treads in their respective treading position is arranged at least partially in the vertical direction above at least one of the print heads of the printing unit and more preferably on a side of the at least one protective cover facing away from the at least one print head.
  • the at least one and more preferably each of the at least three treads preferably has a width which corresponds to at least 60% of a working width of the printing assembly and / or which is at least 40 cm.
  • the printing unit is preferably distinguished by the fact that a sequence of functional units extending in the transport direction is arranged opposite the intended transport path in one direction with at least one component pointing vertically upward. At least one in succession is preferred within this sequence of functional units in the transport direction first gas supply opening and then at least one first section of a shielding device penetrated by printhead recesses and then at least one first gas suction opening and then at least one flow shield and then at least one second gas supply opening and then at least one second section of the shielding device penetrated by printhead recesses and then at least one second gas suction opening.
  • the pressure unit is preferably distinguished by the fact that the pressure unit has at least one suction box.
  • the at least one suction box preferably has at least one inlet opening, which at least partially points to the transport path provided for the printing material.
  • the at least one suction box preferably has at least one and more preferably exactly one outlet opening, which is connected in particular to a respective connection opening of a suction line by means of an outlet connection, which is sealed by means of a sealing element, in particular, which is further preferably connected to a suction device.
  • the at least one suction box can preferably be removed from the suction line and / or from the pressure unit, in particular non-destructively, while maintaining the installation position of the suction line and / or in a removal direction.
  • the printing unit is preferably distinguished by the fact that the printing unit has at least two and more preferably at least three suction boxes which have respective inlet openings which at least partially point to the transport path provided for the printing material.
  • the at least two and more preferably at least three suction boxes are preferably connected, in particular with their respective outlet openings, to flow connections with the same common suction line.
  • the inlet openings of the at least two and more preferably at least three suction boxes preferably extend together over an inlet length in a transverse direction that is at least 80% of the working width of the printing unit corresponds.
  • the inlet opening preferably extends in a transverse direction.
  • the transverse direction is preferably orthogonal to each transport direction defined by the transport path provided for the printing material and oriented horizontally.
  • the pressure unit is preferably characterized alternatively or additionally in that the at least two and more preferably at least three suction boxes are each individually and independently of other ones of these at least two and more preferably at least three suction boxes, which are arranged in the transverse direction next to the respective one of the at least two suction boxes , can be removed from the common suction line and / or from the pressure unit.
  • the printing unit is preferably distinguished by the fact that the printing unit has at least one frame with at least two side walls.
  • the transport path provided for the transport of, in particular, web-shaped printing material preferably runs at least partially between these side walls.
  • the printing unit preferably has at least one cross-member which extends at least in the transverse direction between the side walls and which is more preferably connected, in particular rigidly, to both of the two side walls of the frame.
  • the printing assembly has at least two, even more preferably at least three, even more preferably at least four, even more preferably at least five, even more preferably at least six, even more preferably at least seven and even more preferably at least thirteen trusses, each of which is at least extends in the transverse direction between the side walls and which are more preferably each connected to both of the two side walls of the frame, in particular rigid are connected.
  • the printing unit preferably has at least one support body, which can be moved in particular by means of at least one shut-off drive, preferably linearly and in any case relative to the frame in at least one shut-off direction, which extends at least in the transverse direction between the side walls and in particular from one side wall to another side wall.
  • the parking direction preferably has at least one vertically upward-pointing component.
  • At least one print head is preferably arranged on the at least one support body and can be moved together with the at least one support body.
  • At least two printheads are preferably arranged on the at least one support body and are further preferably movable together with the respective at least one support body.
  • at least one first contact point arranged on the at least one support body and at least one second contact point arranged on the at least one crossmember form at least one first contact point pair, which lies opposite one another in the parking direction and is in contact with and / or can be brought into contact with one another.
  • At least one third contact point arranged on the at least one support body and at least one fourth contact point arranged on the at least one cross member and, for example, on another of at least two cross members form at least one second contact point pair, which at least temporarily also at least in one orthogonal to the parking direction and is opposite to the transverse direction orthogonal support direction and is in contact with one another and / or can be brought.
  • the printing assembly is alternatively or additionally characterized in that the printing assembly has at least two of the cross members spaced apart in the transport direction, each of which extends from one of the side walls to another of the side walls, each of the at least two cross members at least a first cross member and has at least one second cross member spaced therefrom, which together at least partially delimit at least one interior of the respective crossmember in and against the transport direction.
  • Is preferred in the respective at least one interior has at least one component of a gas transport device and / or at least one additional device for supplying at least one printhead with energy and / or operating materials and / or pressurized fluid and / or data and / or at least one gas and / or at least one inner additional device for cleaning and / or arranged for maintenance and / or to cover at least one printhead.
  • the at least one suction box is a component of the gas transport device.
  • the printing unit is preferably distinguished by the fact that the at least one printing unit has at least two image-forming devices, in particular in the form of print heads.
  • the printing unit is preferably distinguished by the fact that the at least one printing unit has at least one inkjet print head and more preferably at least two inkjet print heads.
  • the printing unit is preferably distinguished by the fact that the at least one printing unit Has at least two inkjet print heads, through which the respective application points for printing fluid are determined and that a transport path intended for printing material through the printing unit is defined by at least two fixed guide elements of the at least one printing unit and that a printing section of the transport path provided for printing material is on a first transport path provided along this
  • the job of the printing unit begins and ends at a last job of the printing unit along this intended transport route. For example, along the printing section of this intended transport path, at least five fixed guide elements, which define the intended transport path, are arranged one behind the other.
  • the printing unit is preferably characterized in that at least two, preferably at least five, more preferably at least eight, even more preferably at least ten, even more preferably at least fourteen and even more preferably at least twenty-eight fixed, along the printing section of this intended transport path, also include the intended transport path defining guide elements are arranged one behind the other. This has the particular advantage that a particularly large number of print heads and thus a high printing speed and high printing quality can be realized.
  • the at least one printing unit is preferably characterized in that the at least two and more preferably the at least five, in particular stationary, guide elements are preferably rotated with respect to rotary or pivoting movements axes other than at least one common pivot axis fixed guide elements.
  • the stationary guide elements are preferably, in particular, stationary guide elements.
  • the printing unit is alternatively or additionally characterized in that these at least two and preferably at least five transport paths provided for this are arranged in the region of the printing section with fixing guide elements pivotable about at least one pivot axis common to them, in particular around these at least two and preferably at least five guide elements between a respective work position and a respective maintenance position.
  • These at least two and preferably at least five transport paths provided for this purpose are preferably arranged in the region of the printing section with fixing guide elements by means of at least one swivel drive and / or in at least one joint movement and / or relative to the at least two printheads so as to be pivotable about the at least one swivel axis common to them.
  • the printing unit is alternatively or additionally characterized in that these at least two and more preferably at least five guide elements are arranged so as to be pivotable about a pivot angle about the at least one pivot axis common to them, which is at least 10 °, more preferably at least 20 ° and even more preferably at least Is 30 °.
  • the printing unit is preferably characterized alternatively or additionally in that a main conveying direction, which is defined by a straight connection between a first guide element related to the printing section of the transport path intended for printing material and a last guiding element related to the printing section of the transport path intended for printing material, is oriented orthogonally to the transverse direction and that the main conveying direction with guide elements arranged in its maintenance position is at an angle of at most 30 °, more preferably at most 20 ° and is more preferably arranged at most 10 ° to a vertical direction.
  • This has the particular advantage that the maintenance space becomes particularly large and the guide elements are particularly accessible in their maintenance position. In particular, large printing material widths or working widths of the printing unit can be realized in this way.
  • the printing unit is preferably distinguished by the fact that the transport path provided for printing material along the printing section is curved only in one direction, in particular downwards and / or convexly with respect to the side of the printing material printed in the at least one printing unit.
  • a downward curvature does not conflict with an upward transport route, but rather means, for example, an increase in the course of the transport route, which increases continuously or gradually.
  • the printing unit is preferably distinguished by the fact that the transport path provided for printing material along the printing section is limited and / or contacted and / or affected by components of the printing unit exclusively on exactly one side.
  • the printing unit is preferably distinguished by the fact that the at least two printing heads each have a plurality of nozzles and that more preferably at least one nozzle per printing head has a target area which at least and more preferably exactly one of the in particular at least two and more preferably at least cuts five preferably fixed guide elements.
  • This preferably applies in particular with the respective print head arranged in its printing position and with the respective guide element arranged in its working position.
  • This preferably applies alternatively or additionally to a plurality or more preferably all of the nozzles of the respective printhead.
  • the printing unit is alternatively or additionally characterized in that at least one of the at least two and preferably at least five transport routes provided for this in the region of the printing section with fixing guide elements at three points spaced apart in the transverse direction, preferably designed as support areas, with a total of at least two lateral support elements and is in contact with at least one inner support element and is thereby fixed in its position.
  • the printing unit is alternatively or additionally characterized in that several or even more preferably all of the at least two and preferably at least five transport routes provided for this in the region of the printing section with fixing guide elements at three points spaced apart from one another in the transverse direction, preferably in the form of support areas a total of at least two lateral support elements and at least one inner support element are in contact and are thus fixed in their position, the plurality or more preferably all guide elements preferably being in contact with the same lateral and / or inner support elements.
  • the printing unit is preferably characterized alternatively or additionally by the fact that the at least one inner support element is in contact with the at least one guide element at a point which is preferably designed as a support area, the position of which in relation to the transverse direction is related to the position of at least one nozzle of at least one printhead of the printing unit matches.
  • the printing unit is preferably distinguished by the fact that the printing unit has at least one, in particular, stationary frame or machine frame.
  • the printing assembly has the at least one first transport path, which is provided by at least two guide elements and is provided for printing material webs, and at least one support element which can be moved, in particular pivoted, relative to the frame, and is at least a first web fixing device along this first intended transport path for fixing a first one Section of a printing material web arranged relative to the first web fixing device and / or relative to the frame.
  • fixing is not only to be understood as supporting against gravity, but rather relative immobility, in particular with regard to any movement in any direction.
  • the printing unit is alternatively or additionally characterized in that, along this first intended transport path and in particular after the at least one first web fixing device, at least one support element connected to the at least one support element that is movable relative to the frame and at least jointly with this at least one movable element relative to the frame
  • the support element which is also movable relative to the frame, is arranged for fixing a second section of a printing material web relative to the second web fixing device and / or relative to the at least one movable support element.
  • the at least one first web fixing device is preferably arranged on the frame.
  • a joint movement of two objects should preferably be understood to mean, in particular, a movement in which the centers of gravity of these objects move relative to another object, for example that to the frame, but in which the distance between these pivot points remains the same.
  • the printing unit is preferably characterized alternatively or additionally by the fact that the at least two guide elements, which define the first transport path intended for printing material, are arranged to be movable, in particular pivotably, together with the at least one support element, preferably at least one support element, on the frame.
  • the at least two guide elements are preferably fixed guide elements relative to the at least one support element.
  • the printing unit is preferably characterized alternatively or additionally in that the at least one support element is arranged together with the at least one second web fixing device and / or together with the at least two guide elements so as to be pivotable about the at least one common pivot axis, in particular by means of at least one common pivot drive and / or in a common movement.
  • the at least one second web fixing device is arranged to be movable independently of the at least one first web fixing device.
  • the printing unit is preferably distinguished by the fact that the second web fixing device, in particular together with the at least two guide elements, can be moved relative to the first web fixing device and that a distance between the at least one second web fixing device and the at least one first web fixing device can be changed.
  • the printing unit is preferably distinguished by the fact that the at least one first web fixing device is arranged on the frame of the printing unit.
  • the printing unit is preferably distinguished by the fact that an optionally available maximum adjustment path of the at least one first web fixing device is smaller than one tenth of a maximum adjustment path of the at least one second web fixing device.
  • the printing unit is alternatively or additionally characterized in that the at least one second web fixing device can be arranged, in particular together with the part of the second section of the at least one printing substrate web fixed thereto, at different distances from the at least one image-forming device which is preferably designed as a print head.
  • the printing unit is preferably distinguished by the fact that the printing unit has at least two image-forming devices, by means of which the respective application points for printing fluid are defined and that a printing section of the first transport path provided for printing material begins at a first application point of the printing unit along this transport path and ends at a last job of the printing assembly along this intended transport path and that along this provided transport path the at least two guiding elements defining the intended transport path one behind the other along the printing section of this first provided transport path are arranged.
  • the printing unit is preferably characterized alternatively or additionally in that at least one separating device and / or at least one connecting device is arranged along the intended transport path between the at least one first web fixing device and the at least one second web fixing device.
  • the printing unit is preferably characterized in that the first section of the printing material web and the second section of the printing material web belong to the same printing material web at least before a possible severing.
  • the invention can preferably be used for different non-impact printing processes, in particular for ionographic processes, magnetographic processes, thermographic processes, electrophotography, laser printing and in particular inkjet printing processes or inkjet printing processes.
  • printing inks as far as no obvious contradiction is evident - can be used on all types of flowable printing fluids, in particular also on colored or colorless varnishes, and on relief-forming materials such as pastes and by - only intended or actual - replacement of the expression "printing ink” by the general expression "printing fluid” or a special expression "lacquer", "higher-viscosity printing ink”, “low-viscosity printing ink” or “ink”, or "paste” or "pasty material” transfer.
  • printing fluid includes in the foregoing and below inks and printing inks, but also varnishes and pasty materials. Preference is given to pressurized fluids made by a printing press 01 or at least one Printing unit 200 of printing machine 01 are transferred to and / or are transferable and in this case, preferably in finely structured form and / or not just over a large area, establish a preferably visible and / or machine-detectable and / or machine-detectable texture on printing substrate 02.
  • Inks and printing inks are preferably solutions or dispersions of at least one colorant in at least one solvent. Examples of suitable solvents are water and / or organic solvents.
  • the pressure fluid can be designed as a pressure fluid that crosslinks under UV light.
  • Inks are relatively low viscosity printing fluids and inks are relatively high viscosity printing fluids. Inks preferably have no binder or relatively little binder, while printing inks preferably contain a relatively large amount of binder and more preferably further auxiliaries.
  • Colorants can be pigments and / or dyes, pigments being insoluble in the application medium, while dyes are soluble in the application medium.
  • the expression “printing ink” or “printing fluid” in the sense of a liquid or at least flowable coloring fluid to be printed in the printing press should be understood in the foregoing and below - unless explicitly differentiated and named accordingly - and not only colloquially Rather higher-viscosity coloring fluids associated with the expression “printing ink” for use in rotary printing presses, but in addition to these higher-viscosity coloring fluids in particular also low-viscosity coloring fluids such as “inks”, in particular inkjet inks, but also pulverulent coloring fluids such as e.g. B. toner.
  • colorless lacquers are meant when it comes to printing fluids and / or inks and / or printing inks.
  • means for a pre-treatment (so-called precoating) of the printing substrate 02 are preferred when printing fluids and / or inks and / or printing inks are mentioned.
  • the term coating agent is to be understood synonymously.
  • a printing machine 01 is to be understood here as a machine that is capable of applying or capable of applying at least one printing fluid to a printing substrate 02.
  • a printing press 01 preferably has at least one printing material source 100, preferably at least one first printing unit 200, preferably at least one first agent that supports drying, ie. H. first drying aid 301, e.g. B. a first dryer 301, and preferably at least one post-processing device.
  • the printing press 01 optionally has, for example, at least one second printing unit and, for example, at least one second drying aid, ie. H. Drying aids, e.g. B. a second dryer.
  • the printing press 01 is preferably designed as an inkjet printing press 01.
  • the printing press 01 is preferably designed as a roll printing press 01, more preferably as a roll inkjet printing press 01.
  • the printing press 01 can be used as a printing press which works according to the inkjet or inkjet process, as a whole or possibly alongside other non-impact printing processes and / or printing form-based processes 01, in particular as an inkjet printing machine 01.
  • the at least one first printing unit 200 is preferably designed as at least one first inkjet printing unit 200.
  • the printing unit 200 is preferably a printing unit 200 for processing web-shaped printing material 02.
  • the printing material source 100 is designed as a web unwinding device 100.
  • At least one printing material 02 is preferably aligned in the printing material source 100, preferably at least with respect to an edge of this printing material 02.
  • at least one web-shaped printing material 02 that is to say a printing material web 02, preferably a paper web 02, from a printing material roll 101 unwound and preferably aligned with respect to their edges in an axial direction A.
  • the axial direction A is preferably a direction A, which extends in a transverse direction A parallel to an axis of rotation of a printing material roll 101.
  • the transverse direction A is preferred a horizontally running direction A.
  • the transverse direction A is oriented orthogonally to a transport direction provided for the transport of in particular web-shaped printing material 02 and / or orthogonally to an intended transport path of the printing material 02 through the at least one first printing unit 200.
  • the transport route provided for the transport of the at least one printing substrate 02 and in particular the printing substrate web 02 preferably runs through the at least one first printing unit 200 after the at least one printing substrate source 100, where the printing substrate 02 and in particular the printing substrate web 02 are preferably carried on one side with at least one printing ink is provided with a printed image.
  • the transport direction is preferably that direction which is tangential to a section and / or point of the intended transport path closest to a respective reference point.
  • This respective reference point is preferably at the point and / or on the component that is related to the transport direction.
  • the invention is described below using an inkjet printing machine 01.
  • the invention can also be used for other non-impact printing processes or completely different printing processes such as, for example, rotary printing, offset printing, planographic printing, letterpress printing, screen printing or gravure printing, provided that there are no contradictions.
  • the invention is described below in connection with a web-shaped printing material 02, that is to say a printing material web 02.
  • Corresponding features are, however, also preferably applicable to printing presses 01 for sheet-like printing material 02, provided that there are no contradictions.
  • At least one printing material roll 101 is rotatably arranged in the roll unwinding device 100.
  • the reel unwinding device 100 is designed to accommodate a printing material roll 101, that is to say it has only one Storage position for a printing material roll 101.
  • the roll unwinding device 100 is designed as a roll changer 100 and has storage positions for at least two printing material rolls 101.
  • the roll changer 100 is preferably designed such that it enables a flying roll change, i.e. connecting a first printing material web 02 of a currently processed printing material roll 101 to a second printing material web 02 of a printing material roll 101 to be processed subsequently, while both the currently processed printing material roll 101 and that then rotate the substrate roll 101 to be processed.
  • the roll unwinding device 100 preferably has, along the intended transport path of the printing material web 02 after a roll holding device, a dancer roll preferably arranged to be deflectable on a dancer lever and / or a first web edge aligner and / or a feed nip formed by a pulling roller and a pulling press and a first measuring roller, in particular Infeed measuring roller designed first measuring device having infeed unit.
  • This pull roller preferably has its own drive motor designed as a pull drive motor, which is preferably connected to a machine control.
  • a web tension can be set and kept within limits by means of the dancer roller and / or the web tension is preferably kept within limits.
  • the reel unwinding device has an adhesive and cutting device, by means of which a reel change is flying, i. H. can take place without the printing material web 02 coming to a standstill.
  • the feed mechanism is preferably arranged downstream of the first web edge aligner.
  • the at least the pull roller, with which the pull press is preferably arranged together to form the feed gap, is preferably arranged as part of the feed mechanism.
  • the feed gap serves to regulate a web tension and / or to transport the printing material 02.
  • a printing unit 200 is to be understood as a device by means of which a web-shaped or arc-shaped printing material 02 is or can be provided with at least one printing fluid on at least one of its sides.
  • the at least one first printing unit 200 of the printing press 01 preferably has at least one printing point 201.
  • a printing point 201 is to be understood as a preferably complete area in which contact between a respective same printing fluid and a printing material 02 is or can be produced.
  • the term “printing point 201” is also to be used when the printing fluid is applied to the printing material 02 without pressure between the printing material 02 on the one hand and a component that transmits the printing fluid, for example by the impact of freely moving printing fluid on the printing material 02, for example flying drops of the pressure fluid.
  • a printing point 201 preferably comprises all areas which are provided for a certain printing fluid, in particular associated with this printing point 201, to strike the printing material 02.
  • a printing point 201 for example, comprises all areas which are provided for a black ink to strike a first side of the printing substrate 02.
  • the at least one first pressure unit 200 preferably has a plurality of pressure points 201, each of which is assigned a respective pressure fluid, for example at least four pressure points 201, preferably at least five pressure points 201, more preferably at least six pressure points 201 and even more preferably at least seven pressure points 201.
  • a working width of the printing press 01 and / or of the at least one printing unit 200 is a dimension which preferably extends orthogonally to the intended transport path of the printing substrate 02 through the at least one first printing unit 200, more preferably in the transverse direction A.
  • the transverse direction A is preferably one horizontal direction A.
  • the transverse direction A is orthogonal to the intended transport direction of the printing substrate 02 and / or orthogonal to the intended transport path of the printing substrate 02 through the at least one Printing unit 200 oriented.
  • the working width of the printing press 01 preferably corresponds to a maximum width that a printing substrate 02 may have in order to be able to be processed with the printing press 01, that is to say a maximum printing substrate width that can be processed by the printing press 01.
  • the working width of the printing press 01 preferably corresponds to the working width of the at least one first printing assembly 200.
  • the working width of the printing assembly 200 therefore preferably corresponds to the maximum width that a printing substrate 02 may have in order to be able to be processed with the printing assembly 200, that is to say a maximum printing material width that can be processed with the printing unit 200.
  • Each printing point 201 preferably has at least one job point 211.
  • Each job site 211 is preferably assigned to at least one image-forming device 221, in particular at least one print head 221 and further preferably at least one print head row 222.
  • Each job site 211 preferably extends in the transverse direction A, more preferably over the entire working width of the printing press 01.
  • the at least one imaging device 221 is preferably designed as at least one printhead 221, in particular inkjet printhead 221.
  • the at least one printing unit 200 preferably has at least two printing heads 221.
  • the at least one printing unit 200 is characterized in that the at least two print heads 221 are designed as print heads 221 designed for a non-impact printing process, and further preferably in that the at least two print heads 221 are designed as ink-jet print heads 221.
  • Imaging devices 221, such as printheads 221 usually have a limited dimension, in particular in the transverse direction A. This results in a restricted area of the printing substrate 02, to which printing fluid 221 can be applied by a respective printhead. For this reason, a plurality of imaging devices 221 or print heads 221 are usually arranged one behind the other in the transverse direction A. Such printheads 221 arranged one behind the other in the transverse direction A are called Print head row 222 designated.
  • Interrupted print head rows 222 and continuous print head rows 222 are described below. In the special case of a printhead 221 which extends over the entire working width, this should also count as a printhead row 222, in particular as a continuous printhead row 222.
  • Such individual print heads 221 are usually not provided with nozzles up to one edge of their housing. Therefore, at least two, and more preferably exactly two, print head rows 222 extending in the transverse direction A are preferably arranged offset with respect to one another along the transport path provided for the printing substrate 02.
  • Such print head rows 221 are, for example, interrupted print head rows 222. In each case two such, in particular interrupted, print head rows 222 together form a double row 223 of print heads 221.
  • the entire working width of the printing press 01 and / or at least one is preferably a first printing unit 200 can be reached from nozzles of the printing heads.
  • a plurality of print head rows 222, more preferably at least four double rows 223 and even more preferably at least eight double rows 223 of print heads 221 are preferably arranged one after the other in a direction orthogonal to the transverse direction A, in particular in the transport direction along the intended transport path of the printing substrate 02, in particular on the for the Transport of the substrate 02 intended transport route aligned.
  • Each double row 223 of print heads 221 is preferably assigned and / or assignable to a printing fluid, in particular 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, or an agent or mixture of substances for one Pretreatment (precoating) of substrate 02 or a special color.
  • a printing fluid in particular 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, or an agent or mixture of substances for one Pretreatment (preco
  • Each nozzle is preferably assigned a clearly defined target area in the direction A of the width of the printing material web 02 and preferably in the transverse direction A.
  • Each target area of a nozzle is preferably clearly defined, at least in the printing mode.
  • a target region of a nozzle is that region of space, which in particular is essentially a straight line, and which extends in an ejection direction of this nozzle from this nozzle.
  • An impingement area is preferably an area which is provided for contact of printing fluid with printing material 02, in particular for drops of printing fluid with printing material 02.
  • Each nozzle of each print head 221 is preferably assigned an impact area, in particular in a direct ink jet printing process.
  • a striking area of a print head 221 is preferably a sum of all striking areas of nozzles of this printhead 221.
  • An application point 211 is preferably a sum of striking areas of functionally combined printheads 221, which together span the entire working width of the printing press 01.
  • an application point 211 is preferably a sum of areas of impact of the print heads 221, which together form the double row.
  • an application point 211 is preferably a sum of areas of impact of the print heads 221, which together form the continuous print head row 222.
  • At least one application fluid 211 is assigned to at least one printing fluid, for example in the form that two double rows 223 of printing heads 221 eject or are capable of ejecting the same printing medium. This is useful, for example, in order to increase the resolution of a print image and / or to increase the speed of a printing process. These multiple job locations 211 then jointly form the printing location 201 assigned to this printing medium.
  • a first printing point 201 and / or first application point 211 along the intended transport path serves to apply an agent or mixture of substances Pretreatment (precoating) of the printing material 02.
  • this agent or mixture of substances can be selectively and selectively applied to the printing material 02, in particular only at those points where further treatment of the printing material 02 takes place which make such pretreatment necessary, for example application another pressure fluid.
  • a printing unit 200 for example, comprises only one printing point 201, for example for the color black.
  • the at least one first printing unit 200 has, as described, a plurality of printing points 201.
  • the pressure points 201 can directly adjoin one another spatially or can be spaced apart, for example separated by colors.
  • the term “printing point 201” is also intended to include a section which, for example, B. without interruption by a different color - has several successive job sites 211 of the same color. However, if one or multiple application points 211 of one color along the transport path provided for printing substrate 02 are separated by at least one single or multiple application point 211 of at least one other color, then in this sense they represent two different printing points 201.
  • Printing point 201 In the case of only one Printing point 201 simultaneously represents the first and last printing point 201 of the printing unit 200 in question.
  • a printing point is a contact area between a transfer body and the printing material 02.
  • the at least one printing unit 200 has at least one printhead 221, which is further preferably designed as at least one inkjet printhead 221.
  • Each print head 221 preferably has a plurality of nozzles from which drops of printing fluid, in particular ink drops, are ejected and / or can be ejected.
  • the at least one pressure unit 200 preferably has at least one nozzle bar 231.
  • a nozzle bar 231 is a component which preferably extends over at least 80% and more preferably at least 100% of the working width of the Printing machine 01 extends and / or preferably serves as a carrier for the at least one printhead 221.
  • a single or preferably a plurality of nozzle bars 231 are arranged per printing unit 200.
  • the at least one pressure unit 200 has at least three nozzle bars 231, even more preferably at least five nozzle bars 231 and even more preferably at least fourteen (14) nozzle bars 231.
  • the at least one first nozzle bar 231 preferably extends orthogonally to the intended transport path of the printing substrate 02 over the entire working width of the printing press 01, in particular in the transverse direction A.
  • the at least one nozzle bar 231 preferably has at least one row of nozzles, in particular in that at least a print head 221 having nozzles is arranged on the at least one nozzle bar 231.
  • the at least one row of nozzles, viewed in the transverse direction A preferably has nozzle openings at regular intervals over the entire working width of the printing press 01.
  • a single continuous print head 221 is arranged for this purpose, which extends in the transverse direction A over the entire working width of the printing press 01.
  • a plurality of print heads 221 are arranged next to one another in the transverse direction A on the at least one nozzle bar 231.
  • the at least one nozzle bar 231 preferably has at least one print head 221 and preferably a plurality of print heads 221. In the case in which the at least one nozzle bar 231 each has only one print head 221, this print head 221 preferably extends over an entire working width of the printing press 01. In the case in which the at least one nozzle bar 231 each has a plurality of print heads 221 these print heads 221 are preferably designed as at least one print head row 221 or more preferably as at least one double row 223 of print heads 221, and the at least one print head row 222 or double row 223 of print heads 221 preferably extends over an entire working width of the printing press 01. In the case of a double row 223 of print heads 221, the at least one row of nozzles of the respective nozzle bar 231 is preferably divided into at least two interrupted print head rows 222.
  • a printhead 221 has a plurality of nozzles, then all target areas of the nozzles of this printhead 221 together form a working area of this printhead 221.
  • Working areas of printheads 221 of a nozzle bar 231 and in particular a double row of printheads 221 adjoin and / or overlap as seen in the transverse direction A. seen in the transverse direction A. In this way, even when the print head 221 is not continuous in the transverse direction A, it is ensured that target areas of nozzles of the at least one nozzle bar 231 and / or in particular each double row 223 of print heads 221 are located at regular and preferably periodic intervals when viewed in the transverse direction A.
  • an entire working area of the at least one nozzle bar 231 preferably extends over at least 90% and more preferably at least 100% of the working width of the printing press 01 in the transverse direction A or the entire width of a printing material guide 249.
  • On one or both sides with respect to the transverse direction A there may be a narrow area of the substrate web 02 and / or that of the width of the substrate guide 249, which does not belong to the working area of the nozzle bar 231.
  • An entire working area of the at least one nozzle bar 231 is preferably composed of all working areas of print heads 221 of this at least one nozzle bar 231 and is preferably composed of all target areas of nozzles of these print heads 221 of this at least one nozzle bar 231.
  • an entire working area of a double row 223 of print heads 221 seen in the transverse direction A corresponds to the working area of the at least one nozzle bar 231.
  • Each double row 223 of print heads 221 is preferably assigned and / or assignable to a printing fluid of a specific color, for example one of the colors black, Cyan, yellow and magenta or a lacquer, for example a clear lacquer.
  • All working areas of print heads 221 of the at least one first printing unit 200 preferably form a working area of this at least one first printing unit 200.
  • the at least one nozzle bar 213 preferably has a plurality of rows of nozzles in a conveying direction of a printing material guide 249.
  • This conveying direction of the printing material guide 249 is preferably identical to the transport direction of the transport path provided for the transport of printing material 02.
  • Each print head 221 preferably has a plurality of nozzles, which are further preferably arranged in a matrix of a plurality of lines in the transverse direction A and / or a plurality of columns, preferably in the conveying direction of the printing material guide 249, such columns being arranged, for example, at an angle to the conveying direction of the printing material guide 249 are, for example to increase the resolution of a printed image.
  • the at least one print head 221 preferably works according to the drop-on-demand method in order to generate ink drops, in which ink drops are specifically generated if required.
  • At least one heating element is preferably used for each nozzle, which generates an evaporation of pressure fluid within a reservoir.
  • at least one piezo element is used for each nozzle, which can reduce a volume filled with printing ink by a certain amount at high speed when a voltage is applied.
  • a drop deflection after its ejection from the corresponding nozzle is not necessary, since it is possible to determine a target position of the respective ink drop on the moving substrate web 02 with respect to the conveying direction of the substrate guide 249 solely by an emission time of the respective ink drop and to set a conveying speed of the substrate guide 249.
  • ink drops of the at least one are selected only at selected times and at selected locations Transfer the print head 221 to the printing material web 02.
  • Ink drops are ejected from the at least one nozzle of the at least one printhead 221, preferably as a function of the rotational position of the first drive motor specified by the machine control.
  • the target data of the rotational position of the first drive motor specified by the machine controller for the first drive motor are preferably included in real time in a calculation of data for controlling the nozzles of the at least one print head 221.
  • a comparison with actual data of the rotational position of the first drive motor is preferably not necessary and preferably does not take place.
  • An exact and constant position of the printing material web 02 relative to the first printing material guide 249 is therefore of great importance for a print image that is appropriate for the register and / or register.
  • the great accuracy of the target data for the rotational position of the first drive motor of the printing material guide 249 which is specified by the machine control and processed by the first drive motor, enables a very precise position determination and / or knowledge of the position of the printing material web 02 relative to the nozzles and their target areas.
  • a drop flight time between the nozzles and the printing material web 02 is known, for example, from a teach-in process and / or from the known distance between the nozzles and the printing material web 02 and a known drop speed.
  • an ideal point in time for the ejection of a respective drop is determined so that an accurate and / or register-correct image of the substrate web 02 is achieved.
  • a conveyor line in particular a conveyor line for printing substrate 02, preferably comprises those devices 241; 251; 252; 253; 254; 256; 257; 303; 306; 343; 344, which define a transport path for the printing material 02, for example rollers, cylinders, guide elements and the like.
  • a conveying path of the at least one first printing unit 200 which extends from a first printing point 201 of the at least one first printing unit 200 along the transport path provided for the printing substrate 02 to a last printing point 201 of the at least one first printing unit 200 along the transport path provided for the printing substrate 02 extends, is referred to as the printing path 224 of the at least one first printing unit 200.
  • the intended transport route is the space area that the printing substrate 02 would take up if it were present.
  • the conveying path of the at least one first printing unit 200 preferably comprises those devices 241; 251; 252; 254; 256, which determine the transport path through the at least one first printing unit 200, in particular both the intended transport path regardless of the presence of the printing material 02 and the actual transport path when the printing material 02 is present.
  • the part of the intended transport path of the printing material 02 defined by the printing path 224 becomes referred to as the pressure section 226 of the intended transport route.
  • the at least one printing unit 200 preferably has a plurality of support points 261 along the printing section 226 of the transport path provided for printing substrate 02.
  • Support points 261 are preferably distinguished by the fact that at support points 261 the intended transport path is influenced, for example changed, with respect to its transport direction.
  • These support points 261 are preferably defined by respective guide elements 241.
  • the guide elements 241 are preferably part of the printing material guide 249.
  • Guide elements 241 are preferably devices which limit and redirect the transport route provided for the printing material 02 and, in particular in the case of the presence of the printing material 02, preferably at least partially with the printing material 02 are in contact.
  • Co-rotating and / or positively driven rollers and / or rollers and / or belt conveyors come into question as guide elements 241, but the guide elements 241 are preferably designed as one-piece or multi-piece fixed guide elements 241.
  • a deflection angle 227 of a guide element 241 is preferably an angle between a first local transport direction T1 and a second local transport direction T2, the first local transport direction T1 being a direction T1 of the transport path provided for the printing substrate 02 in an area in which the intended transport path is located the guide element 241 runs or is intended to run up, and the second local transport direction T2 is a direction T2 of the transport route provided for the printing substrate 02 in a region in which the intended transport route leaves or is intended to leave the guide element 241.
  • the guide elements 241 are in particular components of the conveyor line. At least the guide elements 241 arranged in the area of the printing section 226 of the transport path provided for printing substrate 02 are in particular components of the printing path 224.
  • the at least one guide element 241 preferably extends in the transverse direction A over the entire working width of the printing press 01.
  • a cross section of the at least one guide element 241 is preferably an intersection of the at least one guide element with a plane whose surface normal is oriented parallel to the transverse direction A.
  • the entire cross section of the at least one guide element 241 is preferably the same as viewed over the working width of the printing press 01, in particular independently of the position of the cross section within the working area of the at least one first printing unit 200 and / or independently of the position of the cross section with respect to the transverse direction A.
  • Relatively flat guide elements 241 are conceivable, for example in the form of slightly bent metal sheets.
  • the guide elements preferably essentially have one cylindrical surface 228.
  • the cross section of the at least one guide element 241 preferably has at least one curved outer boundary, in particular with a finite radius of curvature that differs from zero.
  • This radius of curvature and thus the radius of the guide elements 241 is preferably greater than 5 mm, more preferably greater than 10 mm and even more preferably greater than 13 mm.
  • This radius of curvature and thus the radius of the guide elements 241 is preferably less than 50 mm, more preferably less than 30 mm and even more preferably less than 18 mm.
  • This curved outer boundary preferably lies at least in a region of the cross section which faces the transport region provided for the printing substrate 02.
  • the curvature is particularly convex.
  • the entire outer boundary of this cross section is more preferably curved.
  • the boundary of this cross section is even more preferably essentially circular.
  • the at least one guide element 241 preferably has, at least in the region of the working width of the printing press 01 and / or of the at least one first printing unit 200, an outer surface 228 in the form of a cylinder jacket, more preferably over an entire extent of the working width of the printing press 01 and even more preferably over the entire extent of the at least one guide element in the transverse direction A.
  • the at least one guide element 241 is preferably designed as at least one rod 241 with an essentially circular cross section, in particular as a cylindrical rod 241.
  • the axis of curvature of the surface 228 of the rod 241 coincides with a central axis 229 of the rod, for example 241 together.
  • An outer surface 228 of the at least one guide element 241 is preferably formed by at least one friction-reducing surface, for example by a coating.
  • this outer surface 228 of the at least one guide element 241 is formed by a chrome coating.
  • This outer surface 228 of the at least one guide element 241 is preferably an entire one in the region of the Working width of the printing machine 01 arranged outer surface 228 of the guide element 241, which is preferably designed as a rod 241.
  • several of the guide elements 241 are constructed identically, more preferably all guide elements 241 within the printing path 224 of the at least one first printing unit 200.
  • a plurality of such guide elements 241 are preferably arranged one after the other with respect to the transport path provided for the printing substrate 02, in particular at least three, more preferably at least five and even more preferably at least fourteen, for example twenty-eight.
  • the printing path 224 preferably has a plurality of such guide elements 241 arranged one after the other. Due to the relative arrangement of the guide elements 241 of the printing path 224 to one another, a respective deflection angle 227 is defined for each guide element 241.
  • the deflection angles of the guide elements 241 of the printing section 224 are preferably essentially the same and differ at most in the region of a first and / or a last guide element 241 of the printing section 224 from those of the other guide elements 241 of the printing section 224.
  • the deflection angle 227 of the at least one guide element 241 and more preferably several and even more preferably all guide elements 241 is at least 0.5 ° (zero point five degrees), more preferably at least 1 ° (one degree) and even more preferably at least 1.5 ° (one point five degrees).
  • the deflection angle 227 of the at least one guide element 241 and more preferably several and even more preferably all guide elements 241 is at most 10 ° (ten degrees), more preferably at most 5 ° (five degrees) and even more preferably at most 2.5 ° (two commas five degrees).
  • the guide elements 241 of the printing path 224 are preferably arranged in the form of an arc, in particular an arc, along the printing path 224.
  • the guide elements 241 are preferably arranged immovable or fixed in at least one holding device, in particular immovable and / or fixed with respect to rotational movements about an axis of rotation intersecting the respective guide element 241.
  • the respective at least one holding device can preferably be deactivated in its holding function, for example by loosening at least one closure device.
  • a preferred symmetry, in particular radial symmetry or even rotational symmetry of the guide elements 241 it is possible to release the corresponding guide element 241 from its fixation, to arrange it again in the holding device twisted by a small angle and to fix it again and thereby a different, preferably still unused area the surface 228, in particular the outer surface 228 of the corresponding guide element 241 for contact with the printing material 02.
  • This angle is preferably an integer fraction of a full angle, ie 360 ° / n, where n is a natural number.
  • the guide elements are rotationally symmetrical, for example cylindrical.
  • the at least one support element 273; 274 preferably serves as a support device for the at least one guide element 241, more preferably for a plurality of guide elements 241 of the printing section 224 and even more preferably for all guide elements 241 of the printing section 224.
  • the at least one support element 273 is designed, for example, as at least one lateral support element 273.
  • the at least one support element 273; 274 is preferably designed as at least one support frame 276 or as part of at least one support frame 276, which has, for example, at least two lateral support elements 273, to which, more preferably, a plurality of guide elements 241 are fastened directly and / or via holding devices.
  • the at least one support frame 276 has at least two frame cross members 277 which are different from the guide elements 241 and which extend at least in the transverse direction A and ensure a constant relative position of the side support elements 273. In principle, this function can be taken over by the guide elements 241 itself, it then being important to ensure that at Detach all guide elements 241 from the support elements 273; 274 the lateral support elements 273 are no longer fixed to one another.
  • the arrangement of at least one frame cross member 277 is preferred.
  • the at least one lateral support element 273 preferably has at least one contact area for each guide element 241, on which the respective guide element 241 rests on the lateral support element 273 or is at least in contact with the lateral support element 273.
  • At least one inner support element 274 is preferably arranged.
  • the at least one inner support element 274 preferably serves at least to protect one or more or preferably all of the guide elements 241 from undesired or at least undesired high deflection.
  • a print head row 222 is preferably assigned to each guide element 241. Alternatively, several print head rows 222 could also be assigned to each guide element 241, for example if the guide elements 241 were not designed as rods, but as flat guide elements.
  • a guide element 241 is preferably assigned to each print head row 222.
  • Each nozzle of the print heads 221 preferably has a respective ejection direction. All nozzles of the same print head 221 preferably have the same ejection direction.
  • each printhead 221 of the at least one first printing unit 200 has at least one nozzle, the imaginary extension of which in the ejection direction when the printhead 221 is arranged in the printing position and when the guiding element 241 is arranged in the working position intersects a guiding element 241, in particular that of the respective printhead 221 assigned guide element 241.
  • each print head 221 of the at least one first printing unit 200 has a plurality of nozzles, the imaginary extension of which cuts a guide element 241 in the ejection direction when the print head 221 is arranged in the printing position and when the guide element 241 is arranged in the working position , in particular the guide element 241 associated with this respective print head 221. More preferably, at least one and even more preferably each print head 221 of the at least one first printing unit 200 has only those nozzles n imaginary extension in the ejection direction when in the printing position arranged print head 221 and, when the guide element 241 is arranged in the working position, a guide element 241 cuts, in particular the guide element 241 assigned to this respective print head 221.
  • a shortest distance between a respective nozzle of a respective print head 221 arranged in its printing position on the one hand and the transport path provided for the printing material 02 or the closest guide element 241 arranged in its working position on the other hand is preferably at least 0.1 mm, more preferably at least 0.5 mm and even more preferably at least 1.0 mm and preferably at most 5 mm, more preferably at most 3.0 mm and even more preferably at most 2.0 mm.
  • a shortest distance between a respective nozzle of a respective print head 221 arranged in its printing position on the one hand and the printing substrate 02 on the other hand is preferably at least 0.1 mm, more preferably at least 0.5 mm and even more preferably at least 1.0 mm and preferably at most 5 mm , more preferably at most 3.0 mm and even more preferably at most 2.0 mm. These distances are related to one another via the thickness of the printing substrate 02.
  • At least one shielding device 292 is preferably arranged.
  • the at least one shielding device 292 preferably serves to separate parts of the print heads, for example their supply devices for electronics and / or for pressure fluid and / or their holders and / or parts of the nozzle bars 231 and / or support body 616, against the transport path provided for the printing material 02 and in particular shield its print section 226 and / or against an area having the nozzles of the print heads 221. This prevents printing fluid from being deposited as dirt on those parts of the print heads 221 that could be impaired, for example in the form of fine ink mist.
  • the at least one shielding device 292 preferably has at least one opening per print head 221 through which the respective print head 221 or at least its nozzles can protrude at least partially and also protrude when the print head 221 is arranged in its printing position.
  • the openings are preferably essentially closed by the print heads 221 arranged in their printing positions.
  • the at least one shielding device 292 is designed, for example, as at least one shielding surface 292, in particular as at least one shielding plate 292.
  • the at least one shielding device 292 is preferably arranged in a fixed position relative to a frame 283 of the at least one first printing unit 200, in particular independently of the arrangement of the at least one Printhead 221 in its printing position or in its storage position and / or regardless of the arrangement of the at least one guide element 241 and / or the support frame 276 in its working position or in its maintenance position.
  • At least rotatable first web guiding means 251 are preferably arranged in front of the first guiding element 241 of the printing path 224 with respect to the transport path provided for the printing substrate 02.
  • This at least one first rotatable web guiding means 251 is preferably designed as a first motor-driven web guiding means 251 and / or a first web guiding roller 251, in particular a first motor-driven web guiding roller 251.
  • the at least one first web guiding roller 251 has its own drive motor and / or is at least one first web guide roller 251 part of at least one system for regulating a web tension of a web-shaped printing material 02.
  • At least one rotatable second web guiding means 254 is preferably arranged after the last guiding element 241 of the printing path 224 with respect to the transport path provided for the printing material 02.
  • This at least one second rotatable web guide means 254 is preferably designed as a second motor-driven web guide means 254 and / or a second web guide roller 254, in particular a second motor-driven web guide roller 254.
  • the at least one second web guide roller 254 has its own drive motor and / or is at least one second web guide roller 254 part of the at least one system for regulating the web tension of the web-like printing material 02.
  • the web guiding means 251; 253; 254; 257 and / or web guide rollers 251; 252; 253; 254; 256; 257 are preferably part of the substrate guide 249.
  • the printing section 226 of the transport path provided for the printing substrate 02 preferably extends monotonically.
  • a first guide element 241 of the printing section 224 is preferably the lowest arranged of all guide elements 241 of the printing section 224.
  • a last guide element 241 of the printing section 224 is preferably the highest arranged guide element 241 of the printing section 224.
  • the at least one printing unit 200 preferably has at least one and more preferably exactly one swivel device 279.
  • the at least one swivel device 279 is preferably assigned to at least one, more preferably several and even more preferably all guide elements 241 of the printing path 224.
  • a plurality of guide elements 241 and more preferably all guide elements 241 of the printing path 224 about at least one common swivel axis 281; 282 arranged pivotably, in particular along a respective individual and / or differently long pivoting path.
  • the at least one support frame 276 about the at least one common pivot axis 281; 282 pivotally arranged.
  • Each about the at least one common pivot axis 281; 282 pivotable guide element 241 is preferably assigned a working position and a maintenance position.
  • the working position of each guide element 241 is preferably characterized in that the guide element 241 is in a printing operation in its working position and / or that the guide element 241 arranged in its working position is at a minimum distance of at most 5 mm, more preferably at most 3.0 mm, from a printhead 221 next to this guide element 241 and arranged in its printing position and even more preferably has a maximum of 2.0 mm and / or that the guide element 241 arranged in its working position is affected by the transport route provided for the printing substrate 02 in the printing operation.
  • each guide element 241 is preferably distinguished by the fact that the guide element 241 is in a maintenance state of the at least one first printing assembly 200 in its maintenance position and / or that the guide element 241 arranged in its maintenance position is in its printing position from a guide element 241 closest to it arranged printhead 221 has a minimum distance of at least 5 cm, more preferably at least 10 cm and even more preferably at least 20 cm. and / or that the guide element 241 arranged in its maintenance position is spaced apart from the transport route provided for the printing substrate 02 in printing operation.
  • the at least one common pivot axis 281; 282 of the at least one swivel device 279 is preferably arranged further up than the working position and / or the maintenance position of the first guide element 241 of the printing path 224, as seen in the transport direction of the printing substrate 02.
  • the at least one common swivel axis 281; 282 is preferably arranged higher up than the working position and / or the maintenance position of each guide element 241 of the print path 224 assigned to a middle third of the print path 224 in the transport direction of the printing material 02.
  • a vertical component of a distance between the at least one first guide element 241 is preferred the printing path 224 on the one hand and the at least one common pivot axis 281; 282 on the other hand at least twice as large as a vertical component of a distance between the at least one last guide element 241 of the printing path 224 on the one hand and the at least one common pivot axis 281; 282 on the other hand, more preferably at least three times as large and even more preferably at least four times as large, in particular regardless of the arrangement of the at least one support frame 276 in its working position or its maintenance position.
  • the swivel device 279 has exactly one common swivel axis 281.
  • the at least one support element 273; 274 and in particular the at least one support frame 276 can be pivoted about a single common pivot axis 281, in particular relative to a frame 283 of the at least one first printing assembly 200.
  • the pivoting device 279 has at least two and preferably exactly two common pivot axes 281; 282 and at least one intermediate member 284.
  • the at least one intermediate member 284 is preferably pivotable about a first common pivot axis 281 relative to the frame 283 of the at least one first printing assembly 200.
  • the at least one swivel device 279 preferably has at least one swivel drive 286, which is in particular common.
  • the at least one swivel drive 286 has, for example, at least one linear drive 286.
  • the at least one swivel drive 286, in particular linear drive 286, preferably engages the frame 283 with at least one first connecting element, for example directly or with the interposition of at least one further component.
  • the at least one swivel drive 286, in particular linear drive 286, preferably engages with at least one second connecting element on at least one support element 273; 274 and / or at least one frame cross member 277 and / or the support frame 276.
  • the beginning of a flexible traction means in particular a chain, can be moved linearly by means of the at least one linear drive 286 and the traction means is deflected by at least one and preferably at least two deflection devices and one end of the traction means is connected to the at least one support frame 276.
  • the traction means moves linearly, the traction means pulls the support frame 276 upwards, causing the latter to move about the at least one pivot axis 281; 282 is pivoted.
  • a pivoting movement of the support frame 276, in particular about a single pivot axis 281 can be realized with a linear drive 286, because the flexible traction means does not require a fixed movement path.
  • a main conveying direction B is preferably defined by a straight-line connection between a first guide element 241 of the printing path 224 related to the transport path provided for printing material 02 and a last guide element 241 of the printing path 224 related to the transport path intended for printing material 02.
  • the main conveying direction B is preferably defined by a straight connection between a first guide element 241 related to the printing section 226 of the transport path intended for printing substrate 02 and a last guide element 241 related to the printing section 226 of the transport path provided for printing substrate 02.
  • the main conveying direction B points from the first guide element 241 of the printing path 224 related to the transport path intended for printing substrate 02 to the last guide element 241 of the printing path 224 related to the transport path intended for printing substrate 02.
  • the main conveying direction B is preferably oriented orthogonally to the transverse direction A.
  • the orientation of the main conveying direction B with guide elements 241 arranged in its working position and / or with a support frame 276 arranged in its working position has an angle of at least 10 °, more preferably at least 20 ° and even more preferably at least 30 ° to the orientation of the main conveying direction B. in its maintenance position arranged guide elements 241 and / or with a support frame 276 arranged in its maintenance position.
  • the main conveying direction B preferably has guide elements 241 arranged in its working position and / or carrying frame 276 arranged in its working position at least one component pointing vertically upwards and at least one horizontal component.
  • the main conveying direction B with guide elements 241 arranged in its working position and / or carrying frame 276 arranged in its working position is preferably oriented at an angle of at least 10 °, more preferably at least 20 ° and even more preferably at least 30 ° to a horizontal plane.
  • the main conveying direction B is preferably oriented at an angle of at most 70 °, more preferably at most 55 ° and even more preferably at most 40 ° to a horizontal plane with guide elements 241 arranged in its working position and / or with support frame 276 arranged in its working position.
  • the main conveying direction B would run essentially horizontally, ie at an angle of at most 5 ° to a horizontal plane.
  • the main conveying direction B preferably has at least one vertically upward-pointing component, and more preferably only one vertically upward-pointing component, with guide elements 241 arranged in its maintenance position and / or with support frame 276 arranged in its maintenance position.
  • the main conveying direction B is preferably arranged at an angle of at most 30 °, more preferably at most 20 ° and even more preferably at most 10 ° to a vertical direction with guide elements 241 arranged in its maintenance position and / or with support frame 276 arranged in its maintenance position.
  • the joint pivotability of the guide elements 241 of the print path 224 and / or the pivotability of the at least one support frame 276 preferably results in a possibility of increasing a distance between the nozzles of the print heads and / or the at least one shielding device 292 on the one hand and the guide elements 241 of the print path 224 on the other hand.
  • the joint pivotability of the guide elements 241 of the printing path 224 and / or the pivotability of the at least one support frame 276 thus results in a maintenance space 291 between the nozzles of the print heads 221 and / or the at least one shielding device 292 on the one hand and the guide elements 241 on the other.
  • This maintenance room 291 is accessible to operating personnel, for example.
  • This maintenance space 291 enables, for example, maintenance and / or cleaning of the guide elements 241 of the printing path 224 and / or the at least one shielding device 292, in particular independently of the working width of the printing press 01.
  • the maintenance space 291 there is at least one preferably movable stand aid 293, in particular standing area 293 arranged.
  • the footprint 293 is, for example, in two parts and preferably has an integrated and extendable ladder.
  • all print heads 221 are arranged in a stationary manner. This ensures that all nozzles are permanently aligned and / or registered. Different situations are conceivable in which a movement of the print heads 221 is necessary. A first such situation is a flying roll change or printing material change or generally a roll change with gluing process or a printing material change with gluing process. At least the print heads 221 and preferably the at least one nozzle bar 231 and / or support body 616 as a whole is therefore in at least one direction, for example storage direction C.
  • the print heads 221 and, more preferably, the at least one nozzle bar 231 are preferably movable in at least one direction, in particular the storage direction C, relative to the next guide element 241, in particular can be removed from the latter. In this way, the distance can be increased sufficiently, but must subsequently be reduced accordingly.
  • a second such situation arises, for example, during maintenance and / or cleaning and / or encapsulation of at least one of the print heads 221.
  • the print heads 221 are preferably individually attached to the at least one nozzle bar 231 and can be detached individually from the at least one nozzle bar 231. This allows individual printheads 221 to be serviced and / or cleaned and / or be replaced.
  • At least one cleaning device 263, in particular at least one nozzle cleaning device 263, is preferably arranged, which has at least one washing nozzle and / or at least one brush and / or at least one puller and / or at least one cleaning fleece.
  • the print heads 221 are preferably arranged in their respective parking positions so far from the guide elements 241 of the printing path 224, which are arranged in particular in their working position, that the at least one cleaning device 263, in particular nozzle cleaning device 263, fits into a resulting cleaning intermediate space 289.
  • This at least one cleaning device 263 is preferably arranged to be movable in the transverse direction A and more preferably has a dimension in the transverse direction A which is smaller than the working width of the printing press.
  • the at least one cleaning device 263 is preferably arranged outside the working width of the printing press with respect to the transverse direction A.
  • Each print head row 222 or each double row 223 of print heads 221 is preferably assigned its own cleaning device 263, further preferably two separate cleaning devices 263.
  • At least one first dryer 301 is preferably arranged along the transport path provided for printing substrate 02 after the at least one first printing unit 200, which has a region of the transport path provided for printing substrate 02 designed as a drying section, which is defined by an area of action of the at least one dryer 301.
  • the transport path of the printing substrate 02 and in particular the printing substrate web 02 preferably passes through the at least one first dryer 301 in order to dry the applied printing fluid.
  • the at least one first dryer 301 is preferably part of the at least one dryer unit 300.
  • the at least one dryer unit 300 has at least one first dryer 301, which is preferably designed as at least one radiation dryer 301 and / or as at least one flow dryer 301. It is also possible to arrange several dryers 301 arranged one behind the other, for example along the intended transport path. Such a plurality of dryers 301 are arranged one above the other, for example in the case of a substantially vertical transport path, in the at least one dryer unit 300.
  • the at least one first dryer 301 has at least one first preferably controllable and / or regulatable energy delivery device 302; 317 on.
  • the at least one first energy output device 302; 317 is designed, for example, as at least one radiation source 302 and / or at least one air supply line 317.
  • the at least one radiation source 302 is designed, for example, as an infrared radiation source 302 and / or as a radiation source 302 for ultraviolet light.
  • the at least one radiation source 302 is preferably at least one controllable and / or regulatable radiation source 302.
  • the at least one first energy output device 302; 317 is preferred for the targeted transmission of energy, in particular from the at least one first energy output device 302; 317 to one in an area of influence of the first energy delivery device 302; 317 arranged and / or arrangeable printing material 02, preferably provided with printing fluid.
  • the at least one first energy output device 302; 317 is arranged to be movable, in particular relative to the transport path provided for the transport of web-shaped printing material 02.
  • the area of action of the at least one first energy output device 302 preferably cuts; 317 the transport route provided for the transport of web-shaped printing material 02.
  • the at least one first energy output device 302; 317 is arranged to be movable along at least 75%, preferably at least 90% and more preferably completely linear adjustment path in and / or against an adjustment direction S between at least one action position and at least one shut-off position.
  • the Adjustment direction S deviates from at least one horizontal direction by at most 40 °, preferably at most 30 °, more preferably at most 15 ° and even more preferably at most 5 °.
  • the setting direction also deviates from a normal direction N by at most 40 °, preferably at most 30 °, more preferably at most 15 ° and even more preferably at most 5 °.
  • This normal direction N is preferably a normal direction N of a mean surface normal of an entire area, in particular an entire area of influence the at least one first energy output device 302; 317 lying section of the transport route provided for web-shaped printing material 02.
  • the normal direction N of the mean surface normal is determined in particular as an average over all directions of surface normals from tangent planes to all in the area of action of the at least one first energy output device 302; 317 surface elements of the transport route provided for printing material 02. If, as is preferred, the printing material 02 extends substantially vertically through the area of action of the at least one energy output device 302; 317, the normal direction N and / or the adjustment direction S is thus preferably oriented essentially horizontally.
  • the printing press 01 is preferably characterized in that at least temporarily and preferably permanently at least one and preferably exactly one along at least within the at least one dryer unit 300 and more preferably also within the at least one printing unit 200 and even more preferably in a further region a retractable, preferably endless, retraction means for retracting a printing material web 02 is arranged and / or can be arranged.
  • An arrangement within the dryer unit 300 is to be understood in particular to mean that a projection of the at least one drawing-in means in or against the axial direction A or transverse direction A extends the area of action of the at least one energy delivery device 302; 317 cuts.
  • the at least one drawing-in path and / or the at least one drawing-in means is preferably arranged outside the working width of the printing press 01 with respect to the transverse direction A.
  • the at least two parking positions provided are preferably provided in addition to the at least one working position.
  • one of the parking positions is a retracted position and / or one of the parking positions is an access position.
  • the pull-in position is preferably to be taken when a printing material 02 is to be pulled in by the at least one dryer unit 300.
  • the access position is preferably to be assumed when an operator has access to a side of the at least one energy output device 302; 317 should receive.
  • a shortest distance between the at least one first energy output device 302 is preferred; 317 and the transport route provided for the printing substrate 02 with the first energy output device 302 arranged in the access position; 317 larger than when the first energy delivery device 302 is arranged in the active position; 317, preferably by at least 450 mm, more preferably by at least 600 mm and even more preferably by at least 700 mm.
  • At least one measuring roller 343 and / or at least one first deflection roller 347 is arranged, which is preferably wrapped around by the transport path provided for the printing material 02 and / or the printing material 02.
  • At least one first pull roller 344 is arranged, which is assigned at least one drive motor of its own and which is preferably wrapped around by the transport path intended for the printing material 02 and / or the printing material 02 and / or is along the transport path provided for the printing material 02 after the effective area at least one first energy output device 302; 317 and / or after the at least one measuring roller 343 and / or after the at least one first deflection roller 347, at least one second pull roller 303 is arranged, which is preferably wrapped around by the transport path provided for the printing material 02 and / or the printing material 02.
  • the at least one second pull roller 303 and / or the at least one measuring roller 343 and / or the at least one first deflecting roller 347 is preferably designed as at least one cooling roller 303.
  • a plurality, for example at least three, more preferably at least five and even more preferably at least nine pressure rollers 306 are preferably individually opposed the at least one second pull roller 303 is arranged pressed.
  • each of these pressure rollers 306 is arranged on its own lever arm, which is pivotably arranged by means of its own force element. All such lever arms are preferably arranged so as to be pivotable about a common axis.
  • These pressure rollers 306 are preferably arranged one behind the other in the transverse direction A.
  • At least one second deflection roller 348 is preferably arranged along the transport path provided for the printing material 02 after the at least one pull roller 303, which is preferably wrapped around by the transport path provided for the printing material 02 and / or the printing material 02.
  • the at least one second deflection roller 348 is identical to the at least one web guide roller 257.
  • At least one actuator is preferably arranged, by means of which a movement of the at least one energy output device 302; 317 can be carried out along the travel path.
  • the at least one actuator is designed, for example, as at least one hydraulic and / or as at least one pneumatic drive.
  • the at least one actuator is preferably designed as at least one electric drive and / or further preferably has at least one threaded spindle and at least one threaded nut interacting with it.
  • the printing machine 01 which has at least one first printing unit 200, is preferably characterized in that the at least one dryer unit 300 with the at least one first dryer 301 is arranged along the transport path provided for printing substrate 02 after the at least one first printing unit 200, which in particular is a Drying section formed area of the transport path provided for printing substrate 02, which is defined by the area of action of the at least one first dryer 301.
  • a transport direction provided for printing substrate 02 has at least one vertical, preferably downward-pointing component which is larger than any horizontal component of this transport direction that may be present.
  • the axial direction A or transverse direction A is preferably defined by a rotation axis of the at least one first pull roller 344 and / or a rotation axis of the at least one second pull roller 303, in particular as a direction parallel to this axis of rotation.
  • the setting direction S of the at least one energy output device 302; 317 is preferably linear.
  • the setting direction S of the at least one energy output device 302; 317 deviates from the axial direction A or transverse direction A by at least 50 °, preferably at least 60 °, more preferably at least 75 ° and even more preferably at least 85 °.
  • the setting direction S preferably gives way to the at least one energy output device 302; 317 in particular from at least one horizontal direction by at most 40 °, preferably at most 30 °, more preferably at most 15 ° and even more preferably at most 5 °.
  • Radiation emitted is preferably solvent and / or moisture removed from the printing material web 02 and / or from the printing fluid arranged thereon and absorbed by the ambient air in an interior of the at least one first dryer 301.
  • the transport path of the printing material web 02 runs through this interior of the at least one first dryer 301.
  • At least one ventilation device in the region of the at least one energy delivery device 302 is preferred; 317 arranged.
  • the at least one ventilation device preferably has at least one air supply line 317 and at least one air discharge line 318.
  • the at least one first dryer 301 is thus also designed as a flow dryer 301.
  • the at least one air supply line 317 is preferably arranged between at least two air discharge lines 318 along the transport path provided for printing substrate 02.
  • the at least one Air supply line 317 has tubular sections and / or the at least one air supply line 317 ends in a funnel-shaped end region which has a substantially larger cross-sectional area than other sections of the at least one air supply line 317.
  • the at least one air discharge line 318 has tubular sections and / or begins at least one air discharge line 318 in a funnel-shaped initial area that has a substantially larger cross-sectional area than other sections of the at least one air discharge line 318.
  • the at least one air supply line 317 is preferably at least one energy delivery device 317 and at least one radiation source 302 is likewise at least one energy delivery device 302.
  • the at least one dryer 301 then has at least two energy delivery devices 302; 317 on.
  • the at least one air supply line 317 and / or the at least one air discharge line 318 preferably each have at least one flexible region to which they are connected to a stationary air transport device. Is preferred on one of the at least one energy output device 302; At least one radiation shield 346 and / or at least one reflector 346 are arranged on the side of the transport path provided for the printing substrate 02 facing away from the 317.
  • At least one heat exchanger is preferably arranged, by means of which air which flows through the at least one air discharge line 318 can emit energy to the air which flows through the at least one air supply line 317.
  • At least one shut-off device 349 is preferably arranged, by means of which a security area can be separated and / or separated from an environment.
  • the security area is preferably such an area that comprises at least each volume that can be taken up by the at least one energy delivery device 302 and possibly also by at least one dryer frame 351 carrying the at least one energy delivery device 302 during the movements along the travel path.
  • the security area also preferably comprises a larger room area.
  • the security area is preferably through from one environment at least one closable opening in the shut-off device 349 can be entered. This at least one opening can preferably be closed by means of a locking device 352, for example at least one door 352.
  • Movement of the at least one energy delivery device 302, in particular from its active position and / or its access position and / or its retracted position, is preferably only possible when the at least one closure device 352 is closed and / or when a signal transmitter arranged outside the security area is operated.
  • the at least one closure device 352 can only be opened when the at least one energy delivery device is arranged in its access position.
  • a preferred method for operating a printing press 01 can be carried out in particular by means of the printing press 01.
  • the at least one energy delivery device 302; 317 moved in particular by means of the at least one actuator from the acting position in the adjusting direction S along a linear adjustment path by at least 5 mm, preferably by at least 50 mm and more preferably by at least 90 mm and independently of it for example by at most 400 mm to the retracted position and stopped there .
  • At least one web-shaped printing material 02 is preferred by means of at least one drawing-in means, in particular different from each printing material 02, along the transport path provided for the printing material 02 through the area of action of the at least one energy output device 302; 317 moved in.
  • the at least one first energy output device 302; 317 in particular by means of the at least one actuator from the retracted position against the direction S along the same linear travel path moved back to the active position and stopped there.
  • first shutdown process and a second shutdown process in at least one drying process in the area of action of the first energy delivery device 302; 317 energy from the at least one first energy output device 302; 317 on the previously drawn web-shaped printing material 02. It is further preferred that the web-shaped printing material 02 previously drawn in is at least partially provided with at least one printing fluid in the at least one printing unit 200.
  • the at least one first energy output device 302; 317 in particular by means of the at least one actuator from the acting position in the particular same direction S along the in particular the same linear adjustment path by at least 450 mm, more preferably by at least 600 mm and even more preferably by at least 700 mm into an access position different from the retracted position and stopped there.
  • at least one maintenance operation on the at least one first energy output device 302 is preferred; 317, for example an exchange of at least one current-carrying component and / or cleaning of a component.
  • the at least one first energy output device 302; 317 in particular by means of the at least one actuator drive from the access position against the actuating direction S along the same linear adjustment path back to the active position and stopped there.
  • the method is preferably characterized in that the at least one drawing-in means is connected to the at least one printing substrate web 02 in one connection process by means of at least one connecting element.
  • the at least one connecting element preferably passes a printing position of the at least one printing head 221, while this is switched off from the intended transport route and / or is arranged in at least one rest position, and / or the at least one connecting element during the pulling-in process passes at least one target area of at least one nozzle of the at least one printhead 221 and / or no part of the passes during the pulling-in process at least one drawing-in means a target area of a nozzle of the at least one printhead 221.
  • the at least one connecting element preferably passes through an acting area of the at least one energy delivery device 302; 317 of the at least one first dryer 301, while this is in a storage position designed as a retracting position.
  • no component of the at least one pulling-in means passes the area of action of the at least one energy delivery device 302; 317.
  • Preferably only at least one drawing-in means is used which is arranged in the transverse direction A with respect to only one side of the intended transport path for printing material 02 and / or whose drawing-in path runs only on one side of the intended transport path for printing material 02.
  • the printing material web 02 After the printing material web 02 has passed the at least one first printing unit 200, the printing material web 02 is transported further along its transport path and is preferably fed to the at least one first dryer 301 of the at least one dryer unit 300.
  • a transport path for the printing material 02 comprising one or more guiding and / or conveying means is preferably formed downstream of the last printing point 201 in such a way that the first side of the printing material web 02 printed in the at least one first printing unit 200 after passing the last printing point 201 to to the area of influence of the at least one energy output device 302; 317 of the at least one first dryer 301 does not come into contact with any component of the web printing press 01, in particular with any guidance and / or conveying means.
  • the second side of the printing material web 02 is preferably up to the effective area of the at least an energy output device 302; 317 of the at least one first dryer 301 with at least one web guiding means 257, for example at least one web guiding roller 254; 256; 257 and / or the first pull roller 344 in contact.
  • a transport direction provided for the printing substrate 02 preferably has at least one vertical, preferably downward-pointing component in at least half and more preferably in at least 75% of the entire drying section, which is larger than any horizontal component of this transport direction that may be present.
  • a motor-driven web guide roller 254 or pull roller 344 is preferably arranged, which is wrapped by the printing material 02 and / or the intended transport path with a wrap angle that is preferably at least 45 °, more preferably at least 60 ° and even more preferably at least 75 °.
  • This at least one motor-driven web guide roller 254 or pull roller 344 is preferably arranged along the printing material 02 and / or along the transport path provided for the printing material 02 after the last guide elements of the printing path 224 and before the area of action of the at least one dryer 301.
  • the at least one first dryer 301 preferably has at least one radiation source 302, which is preferably designed as a radiation source 302 for microwaves and / or for radiation in the visible range and / or in the ultraviolet range of the electromagnetic spectrum and / or more preferably as an infrared radiation source 302.
  • the at least one first dryer 301 is preferably designed as an infrared radiation dryer 301.
  • a radiation source 302, preferably infrared radiation source 302, is a device by means of which energy, in particular electrical energy is converted into radiation, preferably infrared radiation, and / or can be converted and is directed and / or can be directed onto the printing material web 02.
  • the at least one radiation source 302 forms the at least one energy output device 302.
  • the at least one radiation source 302 preferably has a defined area of action.
  • the area of action of a radiation source 302 is the area which contains all points which can be connected to the radiation source 302 in a straight line, in particular without interruption, or via reflectors which are provided in particular for this purpose.
  • the area of action of the at least one first dryer 301 is preferably composed of the areas of action of all radiation sources 302 of the at least one first dryer 301 and / or of the areas of action of all air supply lines 317 of the at least one first dryer 301.
  • the area of action of the at least one first dryer 301 preferably points from the at least one radiation source 302 to a part of the transport path of the printing material web 02 closest to the at least one radiation source 302.
  • Air is preferably introduced into the interior of the at least one first dryer 301 through at least one ventilation opening of the at least one air supply line 317.
  • water and / or solvents of the printing inks to be removed from the printing material web 02 are then removed, for example, by the infrared radiation and taken up by the introduced air.
  • This air is then discharged from the at least one first dryer 301 through at least one ventilation opening and / or at least one air discharge line 318.
  • At least one first cooling device 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 cooling device preferably has the at least one first cooling roller 303 and preferably a first cooling roller press that can be adjusted and / or adjusted to the at least one first cooling roller 303 and / or the at least one and in particular several that can be adjusted and / or to the at least one first cooling roller 303 or employed pressure rollers 306.
  • the drawing-in means is preferably different from any printing material 02.
  • this is at least one pull-in means as at least one endless Pull-in means formed, for example as at least one endless pull-in belt.
  • the at least one pull-in means is alternatively designed as at least one finite pull-in means, for example as a finite pull-in belt and / or as a finite pull-in chain.
  • At least one retraction drive is preferably arranged, by means of which the at least one retraction means is arranged to be movable along the at least one retraction path.
  • it is sufficient if exactly one such pull-in drive is arranged.
  • the at least one pull-in means is finally formed.
  • At least one draw-in store is preferably arranged, in which the at least one draw-in means can be arranged at least temporarily, in particular as long as it is not used to draw in a printing material web 02.
  • the at least one pull-in 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 in particular permanently along its at least one drawing-in path within the printing press 01.
  • At least one pull-in guide element is preferably arranged, by means of which at least one pull-in path of the at least one pull-in means can be fixed and / or fixed.
  • the at least one pull-in guide element is designed, for example, as at least one deflection roller.
  • the at least one pull-in guide element is alternatively designed as at least one chain rail.
  • the at least one pull-in guide element is preferably designed as at least one rotatable pull-in guide element, for example as at least one deflection roller.
  • a chain rail can also have switches for realizing different insertion paths.
  • 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 in particular permanently along its at least one drawing-in path within the printing press 01 arranged.
  • the at least one drawing-in means preferably has at least two and more preferably at least five provided connecting points at which at least one printing substrate web 02 can be connected directly and / or via at least one connecting element to the at least one drawing-in means.
  • the printing press 01 is preferably distinguished in that the at least two connection points are at a distance of at most 10 cm, more preferably at most 5 cm, still more preferably at most 2 cm and even more preferably not at all, based on the axial direction A or transverse direction A. and / or that the at least two connection points are spaced apart from one another along the at least one pull-in path.
  • At least one printing head 221 of the at least one printing unit 200 designed as an inkjet printing head 221 is preferably switched off from the intended transport path of the at least one printing material web 02.
  • at least one drawing-in means is preferably moved along a drawing-in path through the at least one printing unit 200 and the at least one printing material web 02 is thereby drawn along the transport path provided for the at least one printing material web 02.
  • the pull-in path and the transport path are preferably spaced apart from one another in an axial direction A or transverse direction A.
  • At least one post-processing device is arranged along the transport path of the printing material web 02 after an extraction nip and / or after a rewetting device, which is preferably designed as a single- or multi-stage folding device and / or has a sheet cutter and / or a flat delivery or is designed as a winding device.
  • the printing material web 02 is preferably folded and / or cut and / or stapled and / or sorted and / or enveloped and / or shipped and / or wound up.
  • the working width of the printing press 01 and / or the at least one first printing unit 200 and / or a width of a printing substrate 02 to be processed is, for example, at least 1500 mm, preferably at least 2000 mm and further preferably at least 2500 mm.
  • the arranged guide elements 241 in particular in connection with the arranged inner support elements 274 and / or through the adjustment direction S of the at least one energy delivery device 302 and / or through support elements 616 and / or cross members 272 and / or suction elements 247 described below, they are even larger Working widths and / or web widths possible.
  • the at least one printing unit 200 has at least two printing heads 221 arranged one behind the other with respect to the transport direction determined by the transport path provided for in particular a web-shaped printing material 02, preferably designed as ink jet print heads 221.
  • the at least one printing unit preferably has at least four, more preferably at least eight, even more preferably at least ten, even more preferably at least twelve and even more preferably at least fourteen such print heads 221 arranged one behind the other with respect to the transport direction determined by the transport path intended for printing substrate 02 .
  • the at least one printing unit 200 preferably has at least one protective cover 230; 232; 233; 234; 236, which is designed to be movable between at least one respective covering position and at least one respective access position.
  • the at least one protective cover 230; 232; 233; 234; 236 preferably has at least one, in particular designed for entry by at least one operator, and / or together with the at least one protective cover 230; 232; 233; 234; 236 movable step surface 237.
  • the respective at least one tread surface 237 of the at least one protective cover 230; 232; 233; 234; 236 is preferably at least with at least one protective cover 230; 232; 233; 234; 236 at least partially in the vertical direction above at least one of the print heads 221 of the printing assembly 200 and in particular on a side of the at least one protective cover 230 facing away from the at least one print head 221; 232; 233; 234; 236 arranged.
  • access to the corresponding print heads 221 is made possible, for example, even while printing material is still arranged in the at least one printing unit 200.
  • accessibility to the print heads 221 is thus optimized, regardless of the working width of the printing unit 200.
  • the at least one printing unit 200 is preferably characterized in that when the protective cover 230; 232; 233; 234; 236 and / or tread surface 237 at least one maintenance opening 238 is opened and at least one of the print heads 221 is accessible to an operator, for example from one direction with at least one component pointing vertically downward.
  • the side of the respective print head 221 facing away from its respective nozzle surface is then accessible.
  • a nozzle surface is in particular a surface of a print head 221 through which nozzle openings pass.
  • the at least one printing unit 200 is preferably characterized in that at least two tread surfaces 237 of the entirety of the at least one protective cover 230; 232; 233; 234; 236 at least with at least one protective cover 230; 232; 233; 234; 236 at least partially in the vertical direction over at least one of the print heads 221 of the printing unit 200 and in particular on a side of the at least one protective cover 230 facing away from the respective at least one print head 221; 232; 233; 234; 236 are arranged.
  • Independently movable treads 237 can, for example, use a tread 237 to carry an operator, while another tread 237 with its protective cover 230; 232; 233; 234; 236 is folded down to allow work on one of the printheads 221. At another point in time, the functions of these two treads 237 can be interchanged. In particular with large numbers of printheads 221, this results in secure access to any printhead 221.
  • the at least one printing unit 200 preferably has at least two protective covers 230; 232; 233; 234; 236, which are each designed to be movable between at least one respective cover position and at least one respective access position and each have at least one step surface 237, further preferably the respective at least one step surface 237 at least when the respective one of the at least two protective covers 230 arranged in their respective cover position; 232; 233; 234; 236 at least partially in the vertical direction over in each case at least one of the print heads 221 of the printing assembly 200 and even more preferably on a side of the respective at least one protective cover 230 facing away from the at least one print head 221; 232; 233; 234; 236 are arranged.
  • This at least one tread surface 237 preferably has an in particular medium surface normal, the direction of which when the protective cover 230; 232; 233; 234; 236 and / or tread surface 237 deviates from a vertical direction by at most 20 °, more preferably at most 10 ° and even more preferably at most 5 °. In particular, this increases the stability of operators.
  • each of the plurality of treads 237 preferably have a width which corresponds to at least 60%, preferably at least 75% and further preferably at least 90% of a working width of the printing unit 200 and / or which is at least 40 cm, preferably at least 100 cm, more preferably at least 200 cm and even more preferably at least 250 cm.
  • the width is preferably measured in the transverse direction A.
  • these specifications regarding the orientation and / or the width of the treads 237 preferably apply to each of the plurality, in particular at least two or at least three treads 237.
  • At least 25%, preferably at least 50%, more preferably at least 75% and even more preferably at least 90% of the print heads 221 of the printing unit 200 are arranged such that they are arranged in the vertical direction under at least one of the at least one movable protective cover 230; 232; 233; 234; 236 are arranged in their respective cover positions and / or are arranged such that a respective projection of these print heads 221 in the vertical direction completely within a projection oriented in the same vertical direction of the entirety of the at least one movable protective cover 230; 232; 233; 234; 236 of the printing assembly 200 lies in the same projection plane.
  • the projection of the respective print head 221 is a subset of the projection of the protective covers 230; 232; 233; 234; 236 and / or that a projection of the respective printhead 221 has an envelope which is within an envelope of the projection of the Protective covers 230; 232; 233; 234; 236 lies in the same projection plane.
  • At least one of the at least one protective cover 230; 232; 233; 234; 236 at least two treads 237 which, when the protective cover 230; 232; 233; 234; 236 are arranged at different heights in pairs.
  • the protective cover can thus also act as a staircase to allow access to higher parts of the at least one printing unit 200.
  • the at least one pressure unit 200 has a plurality of protective covers 230; 232; 233; 234; 236, wherein the plurality of protective covers 230; 232; 233; 234; 236, at least insofar as they are arranged in their respective covering positions, have respective tread surfaces 237 which are fitted onto these multiple protective covers 230; 232; 233; 234; 236 in total are arranged in pairs at different heights.
  • the at least one printing unit 200 is characterized in that the treads 237 of a plurality of such protective covers 230; 232; 233; 234; 236, at least insofar as these several such protective covers 230; 232; 233; 234; 236 are arranged in their respective covering positions, together form a staircase which has at least four, preferably at least five, more preferably at least six, even more preferably at least seven and even more preferably at least eight steps.
  • the respective steps are preferably formed by respective treads 237.
  • individual steps are formed by surfaces which are assigned to stationary components of the printing unit 200.
  • Each tread 237 and / or each step is preferably arranged on a respective individual height different from other treads 237 and / or steps.
  • all treads 237 and / or steps are preferably arranged in such a way that respective treads 237 and / or steps arranged further back in relation to the transport direction defined by an intended transport path for printing material 02 are arranged higher up than in each case further forward in relation to the transport direction arranged treads 237 and / or steps.
  • the stairs therefore preferably rise in the transport direction defined by the intended transport path for printing material 02.
  • the at least one protective cover 230; 232; 233; 234; 236 is pivotable between its respective covering position and its respective at least one access position.
  • the at least one protective cover 230; 232; 233; 234; 236 at least one cushioning element.
  • the at least one cushioning element preferably serves to support and / or dampen the movement, in particular the pivoting movement, of the respective at least one protective cover 230; 232; 233; 234; 236 between their respective covering position and their respective at least one access position.
  • the at least one cushioning element is designed, for example, as at least one gas pressure spring.
  • the at least one printing unit 200 is characterized in that the printing unit 200 has at least three, preferably at least four, more preferably at least eight, even more preferably at least ten, even more preferably at least twelve and even more preferably at least fourteen print heads arranged one behind the other with respect to the transport direction 221, for which it applies in pairs that a respective second print head 221, which is arranged behind a respective first of these print heads 221 in the transport direction, is arranged higher up than the respective first print head 221.
  • the at least one print unit 200 is characterized in that along the direction of transport at least three, more preferably at least four treads 237 of the at least one protective cover 230 arranged in its covering position; 232; 233; 234; 236 are arranged, which together form a staircase which has at least three, preferably at least four, more preferably at least five, even more preferably at least six, even more preferably at least seven and even more preferably at least eight steps.
  • Each of the at least three, more preferably at least four or correspondingly more treads 237 in is preferred arranged in the vertical direction over at least one of the at least four or correspondingly more print heads 221.
  • the at least one printing unit 200 is characterized in that the at least three, preferably at least four treads 237 are arranged one behind the other along the transport direction in their respective treading positions and together form a staircase which comprises at least three, preferably at least four, more preferably at least has five, more preferably at least six, even more preferably at least seven and even more preferably at least eight stages.
  • the at least one printing unit 200 preferably has at least three, in particular designed for entry by at least one operator, and / or together with the at least one protective cover 230; 232; 233; 234; 236 movable treads 237, which are each designed to be movable at least between a respective tread position and a respective access position.
  • a tread 237 in the tread position means in particular a closed tread 237 and / or closed protective cover 230; 232; 233; 234; 236.
  • a step surface 237 in the access position means in particular an open step surface 237 and / or an open protective cover 230; 232; 233; 234; 236.
  • each of the at least three tread surfaces 237 in its respective tread position is at least partially in the vertical direction above at least one of the printheads 221 of the printing unit 200 and in particular on a side of the at least one protective cover 230 facing away from the at least one printhead 221; 232; 233; 234; 236 arranged.
  • the at least one printing unit 200 preferably has the at least one protective cover 230; 232; 233; 234; 236, which is designed to be movable between the at least one respective cover position and the at least one respective access position, the at least one protective cover 230; 232; 233; 234; 236 preferably at least one of the at least three, in particular together with the at least one protective cover 230; 232; 233; 234; 236 movable treads 237.
  • the at least one printing unit 200 is preferably characterized in that at least 25%, more preferably at least 50%, even more preferably at least 75% and even more preferably at least 90% or all of the print heads 221 of the at least one printing unit 200 are arranged in such a way that they are arranged in the vertical direction under at least one of the at least three movable step surfaces 237 in their respective step position.
  • the at least one printing unit 200 is preferably characterized in that the at least three treads 237 are arranged to be movable at least partially independently of one another and / or that the at least three treads 237 are designed to be pivotable between their respective treading position and their respective at least one access position and / or that the at least three treads 237 are arranged in their respective tread positions at pairs of different heights.
  • the at least one printing unit 200 preferably has the at least one transport path provided for the transport of, in particular, web-shaped printing material 02, by means of which the at least one transport direction is preferably defined.
  • the transport direction is preferably that direction which is tangential to a section of the intended transport path closest to a respective reference point.
  • This respective reference point is preferably at the point and / or on the component that is related to the transport direction.
  • a sequence of functional units 242; 243; 244; 292 are preferably components of the at least one printing unit 200.
  • This first section of the shielding device 292 is preferably essentially exclusively and more preferably only printhead recesses 246 except for mounting recesses.
  • a main surface of the at least one flow shield 244 preferably has a mean surface normal which has at least one first component which is oriented orthogonally to a mean surface normal of an at least also downward-pointing surface of the at least one shielding device 292. More preferably, this first component of the mean surface normal of the main surface of the flow shield 244 is larger than any orthogonal component of these mean surface normals.
  • the at least one printing unit 200 is preferably characterized in that the sequence of functional units 242; 243; 244; 292 at least a partial sequence of functional units 242; 243; 244; 292, each successively in the transport direction at least one gas supply opening 242 and at least one afterwards, more preferably directly afterwards, the following section of shielding device 292 penetrated by printhead recesses 246 and at least one afterwards, more preferably directly afterwards, following gas suction opening 243 and at least one afterwards , further preferably directly following, has the following flow shield 244.
  • the sequence of functional units preferably has at least three, more preferably at least four, even more preferably at least seven and even more preferably at least eleven such partial sequences in succession, preferably directly adjacent to one another.
  • the sequence of functional units 242 preferably ends; 243; 244; 292 in the transport direction, for example after a last such partial sequence, in particular directly after a last such partial sequence, with a terminating sequence of functional units 242; 243; 244; 292, which has at least one gas supply opening 242 in succession in the transport direction and at least one section of the shielding device 292, which is penetrated by printhead recesses 246 and subsequently followed, preferably directly after, and at least one gas suction opening 243 following thereafter, preferably directly after.
  • the at least one printing unit 200 is preferably characterized in that all functional units 242; 243; 244; 292 of the sequence are intersected by a common reference plane, the surface normal of which is both orthogonal to the transport direction and horizontal.
  • the printing unit 200 is preferably distinguished alternatively or additionally by the fact that the at least one first gas supply opening 242 has a dimension extending in the transport direction of preferably at least 1 mm, more preferably at least 2 mm and even more preferably at least 4 mm and / or preferably at most 50 mm, more preferably at most 30 mm and even more preferably at most 20 mm and / or that the at least one gas supply opening 242 extends in a transverse direction A oriented horizontally and orthogonally to the transport direction over at least 30%, more preferably at least 50% and even further preferably extends at least 80% of the working width of the printing unit 200.
  • the dimension of the at least one gas supply opening 242 in the transverse direction A is intended to be a sum of all the individual dimensions, if any, of possibly several gas supply openings 242 arranged in the transverse direction A next to one another in the transverse direction A.
  • the at least one printing unit 200 is preferably characterized in that the at least one shielding device 292 extends in the transverse direction A oriented horizontally and orthogonally to the transport direction by at least 60%, preferably at least 75%, further preferably at least 90% and even further preferably extends at least 100% of the working width of the at least one printing unit 200 and / or that at least one printhead 221, more preferably at least two printheads 221, more preferably at least ten printheads 221 and even more preferably at least twenty printheads 221 partially in one direction with a vertically following component directed below through a respective recess of the respective Shielding device 292 protrudes or protrudes through.
  • a minimum distance of the shielding device 292 from the transport path provided for the transport of printing material is preferably at least 0.3 mm, more preferably at least 0.6 mm and even more preferably at least 1.0 mm and preferably at most 5 mm, more preferably at most 3 mm and even more preferably at most 2 mm.
  • the smallest distance between the print heads 221 and the transport path provided for transporting printing material is preferably at least 0.1 mm, more preferably at least 0.4 mm and even more preferably at least 0.8 mm and preferably at most 5 mm, further preferably at most 2 mm and even more preferably at most 1.2 mm.
  • the at least one pressure unit 200 is preferably characterized in that the at least one pressure unit 200 has at least one suction element 247, which is further preferably designed as at least one suction box 247.
  • the at least one suction box 247 preferably has at least one inlet opening 243, which further preferably points at least partially to the transport path provided for printing substrate 02 and which forms the at least one first gas suction opening 243 and / or the at least one second gas suction opening 243.
  • the at least one inlet opening 243 is preferably delimited by the at least one flow shield 244, in particular at its rear edge as seen in the transport direction.
  • this preferably means that at least one inlet opening 243 of at least one of the at least two suction boxes 247 forms the at least one first gas suction opening 243 and / or the at least one second gas suction opening 243.
  • the at least one suction box 247 preferably has at least one and more preferably exactly one outlet opening 259, which is more preferably connected to a respective connection opening 248 of an in particular common suction line 258.
  • the at least one outlet opening 259 is preferred through a sealing element 262, which is designed in particular as a sealing ring 262 sealed outlet connection connected to the respective connection opening 248 of the suction line 258.
  • the suction line 258 is in turn preferably connected to a suction device, not shown.
  • the at least one suction box 247 can preferably be removed from the suction line 258 and / or from the pressure unit 200, in particular non-destructively, while maintaining the installed position of the suction line 258 and / or in a removal direction.
  • the at least one inlet opening 243 of the at least one suction box 247 preferably has a transverse dimension, a transverse dimension being a dimension in the transverse direction A.
  • the transverse direction A is in turn preferably oriented orthogonally to the transport direction and / or orthogonally to each surface normal of the transport path provided for the transport of the printing material 02 and / or horizontally.
  • the at least one inlet opening 243 of the at least one suction box 247 preferably has a longitudinal dimension orthogonal to the transverse dimension, a longitudinal dimension being a dimension in the longitudinal direction and the longitudinal direction preferably being identical to the transport direction of the transport path intended for the transport of printing material 02.
  • the transverse dimension of the at least one inlet opening 243 of the respective at least one suction box 247 is preferably at least five times, further preferably at least ten times and even more preferably at least fifty times as large as the longitudinal dimension of the respective at least one suction box 247.
  • the transverse dimension of the at least one inlet opening is at least 10 cm, more preferably at least 25 cm and even more preferably at least 50 cm and / or the transverse dimension of the at least one inlet opening is at most 300 cm, more preferably at most 200 cm and even more preferably at most 100 cm.
  • the longitudinal dimension of the at least one inlet opening is at least 0.5 mm, more preferably at least 1 mm and even more preferably at least 2 mm and / or the longitudinal dimension of the at least one inlet opening is at most 75 mm, more preferably at most 30 mm and even more preferably at most 10 mm.
  • the at least one suction box 247 is preferably designed as at least one hollow body 247 which has at least one inlet opening 243 and at least one outlet opening 259.
  • a suction direction has, for example, from the at least one inlet opening 243 to the at least one outlet opening 259.
  • a middle suction direction of the at least one suction box 247 preferably has at least one component which is oriented in a vertically upward direction.
  • the at least one suction box 247 is preferably characterized in that an inner dimension of the at least one suction box 247 measured in the transverse direction A decreases from the at least one inlet opening 243 to the at least one outlet opening 259 and / or that an inner dimension of the at least one measured in the longitudinal direction a suction box 247 increases from the at least one inlet opening 243 to the at least one outlet opening 259.
  • At least 50% of a shortest straight line path from the at least one inlet opening 243 to the at least one outlet opening 259 is further preferred along at least 50% of a shortest straight line path from the at least one inlet opening 243 to the at least one outlet opening 259 to have an inner cross-sectional area of the at least one suction box 247 measured orthogonally to this path to a tolerance of at most 25%, more preferably at most 15 %, even more preferably at most 10% and even more preferably at most 5% of the same size, in particular wherein the inside dimension of the measured in the transverse direction A along this at least 50% of the shortest straight line path from the at least one inlet opening 243 to the at least one outlet opening 259 at least one suction box 247 is reduced from the at least one inlet opening 243 to the at least one outlet opening 259.
  • the at least one suction box 247 has at least one rear boundary surface, which delimits the at least one suction box 247 and in particular the interior thereof, as seen in the transport direction.
  • the at least one suction box 247 has at least one front boundary surface which opposes the at least one suction box 247 and in particular the interior thereof Transport direction seen limited.
  • the at least one suction box 247 has at least two side surfaces which delimit the at least one suction box 247 and in particular the interior thereof in and / or counter to the transverse direction A.
  • the at least two side surfaces are preferably at least partially arranged such that their surface normals run obliquely to each horizontal and each vertical direction and / or at an angle between 10 ° and 170 ° to one another.
  • the at least one outlet opening 259 is preferably designed as an opening of the at least one rear boundary surface. Alternatively or additionally, the at least one outlet opening 259 is designed as an opening of the at least one front boundary surface.
  • a lower edge of the at least one rear boundary surface is preferably closer to the transport path provided for the transport of printing material 02 than a lower edge of the at least one front boundary surface.
  • the distance between the lower edge of the at least one rear boundary surface and the transport path provided for transporting printing material is preferably at least 0.1 mm, more preferably at least 0.4 mm and even more preferably at least 0.8 mm and preferably at most 5 mm preferably at most 2 mm and even more preferably at most 1.2 mm. This distance is preferably adjustable, for example by means of at least one screw 268, which is designed in particular as a stop body 268.
  • a part of the component that forms the at least one rear boundary surface is at least partially designed as the at least one flow shield 244.
  • the at least one flow shield 244 prevents pressure fluid ejected from a printhead 221 arranged in front of this at least one flow shield 244 from reaching an active region of a printhead 221 arranged behind this at least one flow shield 244, on the one hand through the flow shield 244 as a barrier and on the other hand , because a suction effect is promoted by the interaction between flow shield 244 and inlet opening 243.
  • a risk is reduced or prevented that gas or gas mixture originating from a gas supply opening 242 is sucked off from an inlet opening 243 arranged counter to the transport direction without passing through a print head 221. A short circuit of the flow is thus prevented or reduced.
  • the at least one pressure unit 200 preferably has at least two, more preferably at least three, suction boxes 247, which are connected at respective flow connections to the same common suction line 258 leading to a suction device and having a flow path that defines a flow direction.
  • Each of these flow connections preferably has a respective smallest cross-sectional area assigned to the respective suction box 247.
  • Each flow connection arranged along the flow path, in particular in the flow direction along the flow path closer to the suction device preferably has a smaller smallest cross-sectional area than each flow connection located further away from the suction device along the flow path, in particular in the flow direction along the flow path.
  • the at least one pressure unit 200 is preferably characterized in that the at least two and in particular at least three suction boxes 247 are arranged next to one another in the transverse direction A.
  • the at least one pressure unit 200 is preferably characterized in that the flow direction of the flow path of the suction line 258 has at least one component in a transverse direction A that is larger than any component that may be present in a direction orthogonal thereto.
  • the at least one pressure unit 200 is alternatively or additionally characterized in that the at least two and in particular at least three suction boxes 247 have respective inlet openings 243 and that the inlet openings 243 of the at least two and in particular at least three suction boxes 247 each have flow connections to the same common suction line 258 are connected, together extend over a length in a transverse direction A which corresponds to at least 80%, more preferably at least 90%, even more preferably at least 95% and even more preferably at least 100% of the working width of the printing unit 200 and which preferably extends in a transverse direction A.
  • the at least one printing unit 200 which has the at least one suction box 247, is alternatively or additionally characterized in that the at least one suction box 247 has at least one inlet opening 243, which at least partially points to the transport path provided for printing substrate 02 and / or that the at least one suction box 247 has at least one outlet opening 259, which in particular is connected to a respective connection opening 248 of a suction line 258, which in turn is preferably connected to a suction device, and / or by an outlet connection, which is sealed by means of a sealing element 262, in particular formed as a sealing ring 262 the at least one suction box 247 can be removed from the suction line 258 and / or from the pressure unit 200, in particular while maintaining the installation position of the suction line 258 and / or in a removal direction, in particular non-destructively.
  • the at least one suction box 247 can be removed from the suction line 258 and / or from the pressure unit 200 without detaching screw connections and / or without detaching further components of the pressure unit 200 connected to the suction box 247 and / or the suction line 258.
  • the at least one suction box 247 can preferably be removed from the suction line 258 and / or from the pressure unit 200 by at most three successive linear movements, more preferably at most two successive linear movements and still more preferably by at most one linear movement of the at least one suction box 247 .
  • one and preferably one of three suction boxes 247, which is centered in the transverse direction A, can be removed from the suction line 258 and / or from the pressure unit 200 by exactly one linear movement of the at least one suction box 247.
  • two, preferably two in the transverse direction A, of three suction boxes 247 can be removed from the suction line 258 and / or from the pressure unit 200 by two or three successive linear movements of the respective one of these two suction boxes 247. Due to the additional movement of the outer suction boxes 247, an installation position of the suction boxes 247 can be selected such that their respective inlet openings 243 are arranged as close as possible to each other, whereby at least one spacer 613 is arranged such that it is in the transverse direction A between the middle suction box 247 and a respective one of the outer suction boxes 247 is arranged.
  • the middle suction box 247 can then simply be linearly removed from the pressure unit 200, while the outer suction boxes, for example, each have to at least partially bypass a spacer 613, which in each case requires more than one linear movement.
  • the two outer suction boxes can each be removed from the printing unit in a respective linear direction, which are not parallel to one another and which are not parallel to the direction in which the middle suction box 247 can be removed from the printing unit 200.
  • the shape and orientation of the side walls of the suction boxes 247 supports the possibility of arranging inlet openings 243 close to one another and nevertheless arranging spacers 613 between the suction boxes 247.
  • the printing unit 200 is preferably characterized in that the respective Connection opening 248 of the suction line 258 and / or the respective outlet opening 259 of the respective suction box 247 each point in a connection direction which has at least one first component in or against the transport direction. More preferably, this first component is larger than any component of the connection direction that may be present in any direction orthogonal to the transport direction.
  • the direction in which a respective opening points is preferably the surface normal to a virtual opening plane.
  • the virtual opening level is an imaginary or virtual level that deviates as little as possible from an edge surrounding the opening.
  • the deviation is preferably summed or integrated over the entire edge surrounding the opening. If the edge surrounding the opening is therefore only in one plane, the summed or integrated deviation is zero and this plane is the virtual opening plane. If, on the other hand, the edge surrounding the opening does not lie exclusively in one plane, but is only contained in at least one curved surface, then the virtual opening plane is the plane into which the edge surrounding the opening can be projected, so that this projection of the opening surrounding edge adds up as little as possible from the actual edge surrounding the opening over all points of the edge surrounding the opening.
  • the at least one suction box 247 can preferably be removed from the pressure unit 200 in a removal direction and passes any projection of the at least one suction box 247 in the removal direction of any component of the suction line 258. This is particularly true when the suction box 247 is arranged in its working position remain unchanged in their position when the respective suction box 247 is removed. This reduces the effort required to remove the respective suction box 247.
  • the direction of removal is relative to those suction boxes 247 which require more than a linear movement for their removal for example, the direction of the last linear movement during removal. More preferably, any projection of components that are removed when the at least one suction box 247 is removed in the removal direction passes through any component of the suction line 258.
  • the suction boxes 247 are preferably designed as hollow bodies 247 which are closed only by clamping or by a few screw connections and are easy to open. They can therefore simply be removed from the printing unit 200, simply opened and cleaned. Cleaning is useful, for example, after a certain number of operating hours, as the fine ink mist flowing in through the at least one gas supply opening 242 and flowing along the at least one shielding device 292 travels with it, thus entering the inlet opening 243 of the respective suction box 247 designed as a gas suction opening 243 arrives and is reflected there.
  • the at least one pressure unit 200 is preferably characterized in that at least one, in particular reversibly deformable and / or elastic, sealing element 262 is clamped between the at least one suction box 247 and the at least one suction line 258, and in that at least one clamping element 264 on one of the at least one a side of the at least one suction box 247 facing away from the sealing element 262 is clamped between the at least one suction box 247 on the one hand and at least one support body 266 on the other hand and that the at least one clamping element 264 is attached to at least one in particular reversibly deformable and / or elastic and / or designed as a spring element 267 267 is arranged.
  • the at least one articulation element 267 is preferably rigidly arranged at at least one point on the at least one suction box 247 or on the at least one support body 266 and connected to it. This enables a particularly simple system for clamping the at least one suction box 247.
  • the at least one sealing element 262 is preferably a sealing ring 262, which has a circumferential sealing lip, the sealing lip corresponding to a rotationally symmetrical section of a conical outer surface in relation to an axis of symmetry of the sealing ring 262. More preferably, the cone shell preferably has an opening angle between 10 ° and 170 °, more preferably between 30 ° and 160 °, even more preferably between 60 ° and 150 ° and even more preferably between 80 ° and 140 °.
  • a method for arranging at least one suction box 247 in a pressure unit 200 is also preferred, wherein the at least one suction box 247 is moved in an insertion direction into the pressure unit 200 until at least one contact body 269 touches at least one respective stop body 268, for example at least one respective screw 268 and wherein at least one deflecting element 267 carrying a clamping element 264 is deflected from an equilibrium position and wherein at least one outlet opening 259 of the at least one suction box 247 is then moved in a sealing direction with at least one component orthogonal to the direction of insertion to at least one connecting opening 248 of a suction line 258 and whereby on the one hand a flow connection is established and on the other hand the at least one clamping element 264 by a relaxation movement of the at least one articulation element 267 into a clamping position between the at least one suction box 247 and z reaches at least one support body 266.
  • the at least one clamping element 264 is preferably clamped there by a restoring force of a sealing element 262 connecting the outlet opening 259 to the connecting opening 248.
  • at least one guide pin is arranged, which cooperates with at least one elongated guide recess as a guide for the pressing movement.
  • the guide pin is arranged on the at least one support body 266 and the at least one guide recess is arranged on the at least one suction box 247.
  • the at least one printing unit 200 preferably has at least two, in particular at least three suction boxes 247. These at least two and more preferably at least three suction boxes 247 are preferably each constructed and / or arranged and / or removable as described in the foregoing and below with regard to the at least one suction box 247, insofar as there are no contradictions.
  • the at least one pressure unit 200 is alternatively or additionally characterized in that it has at least two and in particular at least three suction boxes 247, each individually and independently of the other of these at least two and in particular at least three suction boxes 247, which in the transverse direction A next to the respective one of the at least two and in particular at least three suction boxes 247 are arranged, can be removed from the common suction line 258 and / or from the pressure unit 200.
  • the at least one printing unit 200 preferably has at least two, in particular at least three suction boxes 247, the at least two and in particular at least three suction boxes 247 each having respective inlet openings 243 which at least partially point to the transport route provided for printing substrate 02.
  • the at least one pressure unit 200 is preferably characterized in that the inlet openings 243 of the at least two and in particular at least three suction boxes 247 together extend over an inlet length which is at least 80%, more preferably at least 90%, even more preferably at least 95% and even more further preferably corresponds to at least 100% of the working width of the printing unit 200.
  • the at least three suction boxes 247 are preferably connected with their respective outlet openings 259 at flow connections to the same common suction line 258.
  • the inlet length preferably extends in the transverse direction A.
  • the at least one suction box 247 is preferred and the at least two, in particular at least three suction boxes 247 are preferred, in particular while maintaining the installation position of the suction line 258 and / or in a removal direction, in particular non-destructively from the suction line 258 and / or can be removed from the printing unit 200.
  • the at least one printing unit 200 is preferably characterized alternatively or additionally by the fact that the printing unit 200 has at least one crossmember 272 which extends from a first side wall 271 of a frame 283 of the printing unit 200 to a second side wall 271 of the frame 283 of the printing unit 200.
  • the at least two and in particular at least three suction boxes 247 are further preferably fastened to the at least one crossmember 272, for example exclusively to the at least one crossmember 272.
  • the at least one cross member 272 preferably has at least one first cross member 611 and at least one second cross member 612.
  • the at least first cross member 611 on the one hand and the at least one second cross member 612 on the other hand are preferably arranged spaced apart from one another in the transport direction.
  • at least one spacer 613 is arranged between the at least one first cross member 611 and the at least one second cross member 612.
  • the at least one spacer 613 is further preferably connected, in particular rigidly, to the at least one first cross member 611 and the at least one second cross member 612.
  • the at least one suction element 247 is preferably at least partially inside of the interior of the at least one crossmember 272 and / or at least partially as seen in the transport direction between the at least one first cross member 611 and the at least one second cross member 612.
  • a plurality of suction boxes 247 for example three suction boxes 247 next to one another in the transverse direction A
  • a plurality of spacers 613 can be arranged at least partially within the crossmember 272 in the transverse direction A and nevertheless almost all of the work of the pressure unit 200 with gas suction openings 243 or inlet openings 243 covered become.
  • At least three, more preferably at least four spacers 613 per crossmember 272 are preferably arranged next to one another in the transverse direction A.
  • the pressure unit 200 is preferably characterized in that each of the at least two and in particular at least three suction boxes 247 has a respective inlet opening 243 which, taken on its own, extends over an inlet length in a transverse direction A which is at most 60%, more preferably at most 50% and even more preferably corresponds to at most 40% of the working width of the printing unit 200.
  • At least one shielding device 292 is arranged such that it is attached to at least one first cross member 611 of a first cross member 272, in particular rigidly, and that it is attached to a second cross member 612 of a second cross member 272, in particular rigidly.
  • this first cross member 272 is rigidly connected to the second cross member 272.
  • the second traverse 272 is in turn preferably connected in the same way to a third traverse 272 by means of a further or the same shielding device 292. In this way, all three trusses 272 are then connected to one another. The more trusses 272 are connected to each other in this way, the more stable the entire structure becomes.
  • At least three cross members 272 are preferably connected to one another in this way via common and / or respective shielding devices 292, more preferably at least five, even more preferably at least seven, even more preferably at least nine and even more preferably at least thirteen.
  • the at least one printing unit 200 is alternatively or additionally characterized in that the at least one printing unit 200 has at least one frame 283 which has at least two side walls 271. Between these at least two side walls 271, the transport path provided for the transport of, in particular, web-shaped printing material 02 preferably runs at least partially.
  • the at least one printing unit 200 preferably has at least two, more preferably at least three, even more preferably at least four, even more preferably at least seven and even more preferably at least eleven cross members 272, which each extend at least in the transverse direction A between the side walls 271 and which are arranged one behind the other with respect to the transport direction and which are preferably each rigidly connected to both of the at least two side walls 271 of the frame 283.
  • the at least one printing unit 200 preferably has at least three, more preferably at least four, even more preferably at least six and even more preferably at least eight printing heads 221 which are arranged one behind the other with respect to the transport direction and / or are spaced apart in the transport direction.
  • At least one additional device 247 which is in particular different from each print head 221, is preferred on each cross member 272, in particular on each of the at least three cross members 272; 263; 601; 602; 603; 604; 607; 608 arranged, which is assigned to at least one front print head 221 arranged in front of this respective one of the at least three crossbeams 272 in the transport direction.
  • At least one additional device 247 is preferred on each of in particular at least three crossbeams 272; 263; 601; 602; 603; 604; 607; 608, which is assigned to at least one rear printhead 221 arranged behind this respective one of the at least three traverses 272 in the transport direction.
  • each of the traverses in particular at least two or at least three traverses 272, as a holder for at least one such first additional device 247; 263; 601; 602; 603; 604; 607; 608 and as a holder for at least one such second additional device 247; 263; 601; 602; 603; 604; 607; 608 is formed.
  • the at least one first additional device 247; 263; 601; 602; 603; 604; 607; 608 and / or the at least one second additional device 247; 263; 601; 602; 603; 604; 607; 608 is, for example, as at least one support element 601; 602 and / or as at least one cleaning device 263 and / or as at least one guide 603 of a cleaning device 263 and / or as at least one cleaning drive 604 of a cleaning device 263 and / or as at least one torque transmitter 607 and / or as at least one printhead closure 608 and / or designed as at least one nozzle closure 608 and / or as at least one suction box 247.
  • the at least one support element 601; 602 is preferably designed as at least one support roller 601 and / or as at least one support stop 602 and / or the at least one torque transmitter 607 is preferably designed as at least one synchronous shaft 607, which in the transverse direction A is further preferably over at least 50%, more preferably at least 75 % and even more preferably extends at least 90% of the working width of the printing unit 200.
  • Such a torque transmitter 607 is, for example, part of at least one shut-off drive 614 and / or is operatively connected to at least one shut-off drive 614.
  • the at least one printing unit 200 is preferably characterized in that print head spaces 609 are arranged in each case in the transport direction between the cross members 272 and in that a respective cross member 272 of the at least three cross members 272 adjoins a print head space 609 arranged in front of the respective cross member 272 in the transport direction and / or adjoins a printhead space 609 arranged behind the respective traverse 272 in the transport direction.
  • the at least one front printhead 221 is preferably arranged and / or can be arranged in the respective front printhead space 609 and the at least one rear printhead 221 is arranged and / or can be arranged in the respective rear printhead space 609.
  • Print heads 221 are preferably arranged exclusively outside each crossmember 272 and / or exclusively inside print head spaces 609. At the beginning and / or the end of a sequence of such traverses 272 there is, for example, a first edge traverse, which is not preceded by print heads 221 in the transport direction, or a second edge traverse is arranged, for example, which has no print heads 221 in transport direction are subordinate.
  • the transverse direction A is preferably oriented orthogonally to each transport direction determined by the transport path provided for printing substrate 02 and horizontally.
  • the at least one printing unit 200 is alternatively or additionally characterized in that each of the cross members 272 and preferably each of at least two cross members 272 has at least one first cross member 611 and at least one second cross member 612 spaced apart in and / or counter to the transport direction, which further preferably together at least partially delimit at least one interior of the respective crossmember 272 in and against the transport direction.
  • An additional device 608 for at least temporarily covering at least one printhead 221 is, for example, an additional device 608 that can be moved between a closed position and a standby position.
  • the at least one component of the gas transport device is at least one suction box 247.
  • the at least one pressure unit 200 is characterized in that A printhead space 609, in which at least one printhead 221 is located, lies between two of the at least two crossbeams 272 adjacent in the transport direction, and in particular between a first crossbeam 611 assigned to a respective first crossbeam 272 and a second crossbeam 612 assigned to a second crossbeam 272 is arranged and / or can be arranged.
  • the at least one printing unit 200 is alternatively or additionally characterized in that at least one spacer 613 is arranged between the respective at least one first cross member 611 and the respective at least one second cross member 612.
  • the respective at least one spacer 613 is in contact with the respective at least one first cross member 611 and the respective at least one second cross member 612.
  • the respective at least one spacer 613 is preferably connected, in particular rigidly, to the respective at least one first cross member 611 and the respective at least one second cross member 612.
  • the at least one printing unit 200 is alternatively or additionally characterized in that the at least one spacer 613 is at a distance from each of the at least two side walls 271 that is at least 20%, more preferably at least 25% and even more preferably at least 30% of the working width of the printing unit 200 corresponds.
  • This does not necessarily apply to each of these spacers 613, but preferably to at least one and more preferably to at least two of the spacers 613.
  • Each crossmember 272 preferably has at least two, more preferably at least three and even more preferably at least four, arranged next to one another in the transverse direction A. such spacers 613.
  • a side wall 271 is also to be understood in particular as a component of the frame 283 which has relatively large holes and / or the shape of which deviates relatively strongly from a flat surface. Side walls 271 preferably face each other as seen in the transverse direction A, the transport path provided for the transport of, in particular, web-shaped printing material 02 preferably being arranged between them.
  • the at least one first cross member 611 is constructed in several parts, in particular in such a way that each individual part of the at least one first cross member 611 extends less than the distance from one of the two side walls 271 to the other of the two side walls 271, but at least the respective one a first cross member 611 extends in total from one of the two side walls 271 to the other of the two side walls 271.
  • the at least one second cross member 612 is constructed in several parts, in particular in such a way that each individual part of the at least one second cross member 612 extends less than the distance from one of the two side walls 271 to the other of the two side walls 271, but at least the respective one a second cross member 612 extends in total from one of the two side walls 271 to the other of the two side walls 271.
  • one or more spacers 613 then serve as connecting pieces between individual parts of a respective first cross member 611 and / or as connecting pieces between individual parts of a respective second cross member 612.
  • the at least one first cross member 611 preferably extends over a length in the transverse direction A which corresponds to at least 80%, more preferably at least 90%, even more preferably at least 95% and even more preferably at least 100% of the working width of the at least one printing unit 200.
  • the at least one second cross member 612 preferably extends over a length in the transverse direction A which corresponds to at least 80%, more preferably at least 90%, even more preferably at least 95% and even more preferably at least 100% of the working width of the at least one printing unit 200.
  • the at least one printing unit 200 which preferably has the at least one frame 283 with at least two side walls 271, preferably has the at least one crossmember 272 which extends at least in the transverse direction A between the side walls 271 and which more preferably each has both of the two Side walls 271 of the Frame 283 is connected, in particular is rigidly connected.
  • the at least one printing unit 200 has at least two, even more preferably at least three, even more preferably at least four, even more preferably at least five, even more preferably at least six and even more preferably at least seven trusses 272, each of which is at least in the Extend transverse direction A between the side walls 271 and which are preferably each connected to both of the two side walls 271 of the frame 283, in particular are rigidly connected.
  • the at least one pressure unit 200 preferably has at least one support body 616 which can be moved in at least one storage direction C relative to the frame 283 and / or relative to the at least one crossbar 272 and extends at least in the transverse direction A between the side walls 271 and more preferably from one side wall 271 extends to another side wall 271. More preferably, the printing assembly 200 has at least two, more preferably at least four, even more preferably at least eight and even more preferably at least twelve such support bodies 616.
  • the at least one movable support body 616 preferably extends in the transverse direction A over at least 75%, more preferably at least 90% and even more preferably at least 100% of the working width of the at least one printing unit 200.
  • the at least one support body 616 is preferred by means of at least one shut-off drive 614 , in particular lifting drive 614, can be moved relative to the frame 283 in the at least one storage direction C.
  • the at least one support body 616 is preferably linearly movable.
  • the setting direction C preferably has at least one component pointing vertically upwards and / or the setting direction C is a stroke direction C.
  • the setting direction C is preferably oriented orthogonally to the transverse direction A.
  • At least one print head 221 is preferably arranged on the at least one support body 616 and can be moved together with the at least one support body 616.
  • At least two print heads 221 are preferably each arranged on the at least one support body 616 and more preferably can be moved together with the respective at least one support body 616.
  • the at least one support body 616 and the ones formed thereon arranged print heads 221 a respective nozzle bar 231.
  • At least one first contact point 617 arranged on the at least one support body 616 and at least one second contact point 618 arranged on the at least one crossmember 272 form at least one first contact point pair 619, which is opposite one another in the storage direction C and is in contact with and / or can be brought into contact with one another .
  • the at least one first contact point pair 619 is preferably used to limit an in particular linear path along which the at least one support body 616 can be moved in and / or counter to the storage direction C, at least with respect to a vertically downward direction.
  • the at least one first contact point 617 arranged on the at least one support body 616 and the at least one second contact point 618 arranged on the at least one traverse 272 are preferably in contact with one another.
  • a distance between the print heads and the printing substrate 02 is preferably defined.
  • this pair of contact points 619 limits or prevents deflection of the support body 616 in the storage direction C, particularly during printing operation, and / or a distance between the print heads 221 of this support body 626 and the printing substrate 02, in particular during printing operation, is the same or at least significantly less variable over the working width .
  • At least one third contact point 621 arranged on the at least one support body 616 and at least one fourth contact point 622 arranged on the at least one crossmember 272 preferably form at least one second contact point pair 623, which at least temporarily also at least in one direction orthogonal to the storage direction C and to the transverse direction A is opposite to the orthogonal support direction and is in contact with one another and / or can be brought.
  • the at least one printing unit 200 has at least two cross members 272 and this is at least one cross member 272 on which the fourth contact point 622 is arranged, another one of the at least two cross members 272 than the cross member 272 on which the at least one second contact point 618 is arranged in particular for this support body 616.
  • the at least one pressure unit 200 is alternatively or additionally characterized in that the at least one second contact point 618 is provided by the at least one cross member 272 itself and / or by at least one support element 602 which is arranged on the at least one cross member 272 and is further preferably designed as a support stop 602 is set.
  • the at least one printing unit 200 is alternatively or additionally characterized in that the at least one third contact point 621 is fixed by at least one pivotable and / or rotatable support element 601, which is arranged on the at least one support body 616 and is preferably designed as a support roller 601, and / or that the at least one fourth contact point 621 is fixed by at least one pivotable and / or rotatable support element 601, which is arranged on the at least one crossmember 272 and is preferably designed as a support roller 601.
  • the pressure unit 200 preferably has at least three, more preferably at least four and even more preferably at least six, support elements 602 arranged on the at least one cross member 272 and designed as support stops 602 for forming at least three, more preferably at least four, more preferably at least six, per support body 616 such second contact points 618.
  • the at least one printing unit 200 is alternatively or additionally characterized in that the at least one first contact pair 619 is at a respective distance from each side wall 271 with respect to the transverse direction A. at least 20%, more preferably at least 30% and even more preferably at least 40% of the working width of the printing unit 200 corresponds. This does not necessarily apply to each of these first contact point pairs 619, but preferably to at least one and more preferably to at least two of these first contact point pairs 619.
  • the at least one printing assembly 200 is alternatively or additionally characterized in that the at least one second contact point pair 623 is related the transverse direction A from each side wall 271 has a respective distance which corresponds to at least 20%, more preferably at least 30% and even more preferably at least 40% of the working width of the printing unit 200. This does not necessarily apply to every second pair of contact points 623, but preferably to at least one.
  • the at least one pressure unit 200 is alternatively or additionally characterized in that the at least one support body 616 has a stiffening region along the transverse direction A over at least 60%, more preferably at least 75% and even more preferably at least 90% of its length.
  • Longitudinal sectional planes are preferably planes whose surface normals have a direction parallel to the transverse direction A.
  • each such longitudinal section plane intersecting the stiffening area forms with the at least one support body 616 a respective entirety of one or more cut surfaces that extend in the vertical direction overall by at least 5 cm, more preferably at least 10 cm, even more preferably at least 15 cm and even further preferably extends at least 20 cm.
  • the at least one support body 616 is particularly stable and is secured against deflections caused, for example, by gravity.
  • the at least one printing unit 200 is alternatively or additionally characterized in that the at least one support body 616 is designed as at least one cage enclosing an interior and that the at least one printhead 221 with at least 80% of its volume is arranged within this interior.
  • a cage is to be understood in particular as a structure with openings.
  • the at least one interior space preferably has an essentially cuboid structure.
  • a cage is, for example, a container that is closed on all sides, but the sides of which are more or less perforated. The design as a cage ensures a particularly high stability with a low weight of the supporting body 616 and good accessibility to the print heads 221 arranged inside the cage.
  • the at least one printing unit 200 is alternatively or additionally characterized in that the at least one support body 616 has at least one bottom segment 624, which has at least one printhead opening 626, which the at least one bottom segment 624 in a direction vertically downward with at least one component and / or opens against the storage direction C and through which the at least one print head 221 is partially protruding.
  • the at least one printhead 221 is further preferably arranged such that it projects through the at least one printhead opening 626 such that an ejection direction of at least one nozzle of the at least one printhead 221 has at least one component oriented vertically downward and / or counter to the storage direction C.
  • the print heads 221 can be arranged at a suitable distance from the transport path intended for the transport of printing material 02 and / or from the printing material 02.
  • the at least one printhead 221 is preferably arranged on the base segment of the support body 616 by means of a holder assigned to the respective printhead 221.
  • the at least one holder has setting options for aligning the respective printhead 221.
  • the at least one printing assembly 200 is alternatively or additionally characterized in that the at least one support body 616 has at least one access opening 627, which the at least one support body 616 in an access direction pointing vertically upwards and / or in the storage direction C with at least one component D opens and through which the at least one print head is further preferred 221 can be removed from the at least one supporting body 616.
  • At least one protective cover 230; 232; 233; 234; 236, which is preferably designed to be movable between at least one respective cover position and at least one respective access position and / or preferably at least one that is designed in particular for entry by at least one operator and / or together with the at least one protective cover 230; 232; 233; 234; 236 has movable tread 237.
  • the at least one printing assembly 200 is alternatively or additionally characterized in that the at least one support body 616 has at least one escape opening 616, which has the at least one support body 616 in an avoidance direction E that runs horizontally and / or orthogonally to the storage direction C with at least one component opens.
  • This makes it easier, for example, to install and / or remove components and / or accessories from individual printheads 221.
  • the at least one printing unit 200 is alternatively or additionally characterized in that the at least one movable support body 616 is connected to the at least two side walls 271 via at least one respective guide device 629, in particular in the form of at least one rail 629.
  • the at least one printing unit 200 is alternatively or additionally characterized in that the at least one support body 616 is arranged to be movable in and against the parking direction C between at least one use position and at least one parking position and that at least one maintenance device 263 and / or cleaning device 263 of the printing unit 200 and / or at least one print head closure 608 and / or at least one nozzle closure 608 of the printing assembly 200 when the support body 616 is arranged in the storage position in a position at least partially occupied by this support body 616 in its use position Space area can be arranged and / or moved.
  • At least one measuring device for measuring a position of the at least one support body 616 is preferably arranged along the in particular linear path along which the respective support body 616 is arranged to be movable.
  • a measuring device is a linear encoder.
  • At least one end position switch is preferably arranged at at least one end and / or at both ends of this, in particular linear path, in particular for switching off the shut-off drive 614.
  • at least one ball screw drive is preferably arranged which has at least one ball screw and / or at least one ball nut. The at least one ball screw drive is preferably part of the at least one shut-off drive 614 and / or is connected to the at least one shut-off drive 614.
  • the pressure unit per support body 616 has two points of attack for one or more shut-off drives 614, in particular at its two ends related to the transverse direction A.
  • a shut-off drive 614 is arranged for each support body 616.
  • At least one torque transmitter 607, designed as a synchronous shaft 607, is preferably arranged, in particular in order to distribute torque applied by the shut-off drive 614 to two points of application, at each of which torque is converted into a linear movement of the supporting body 616.
  • the at least one shut-off drive 614 is an electric motor and / or is preferably coupled directly or via a transmission to the synchronous shaft 607.
  • the synchronous shaft 607 extends, for example, in the transverse direction A over at least 80%, more preferably at least 90% and even more preferably at least 100% of the working width of the printing unit 200.
  • the synchronous shaft 607 is, for example, in each case directly or via at least one, preferably as a belt 632, in particular Toothed belt 632 trained torque transmitter 632 with at least one screw drive, in particular ball screw drive and more preferably connected to two such screw drives. These two screw drives are preferably one of the two Associated side walls 271 of the frame 283.
  • two of the deflecting rollers have a respective axis of rotation that is oriented horizontally and two other of the deflecting rollers have a respective axis of rotation that is oriented parallel to the storage direction C.
  • Deflection rollers should also be understood to mean gears.
  • at least one of the deflection rollers can be displaced orthogonally to its axis of rotation. As a result, the tension of the belt can be adjusted on the one hand and the belt can be replaced on the other hand without completely removing one of the deflection rollers.
  • the synchronous shaft 307 and the belts 632 are preferably each protected by a cover.
  • the shut-off drive is activated, the synchronous shaft 607 is set in rotation, as a result of which the two belts drive the two screw drives and the support body 616 is raised at both ends.
  • Positioning aids are preferably arranged which, when the at least one supporting body 616 is lowered into its operating position, ensure its exact alignment.
  • the printing unit preferably has at least one additional device 608, which is preferably designed as a print head closure 608 and / or as a nozzle closure 608.
  • a nozzle closure 608 is preferably a device that serves to cover one or more nozzles of at least one printhead 221.
  • a printhead shutter 608 is preferably a device that serves to cover a printhead 221 or a plurality of printheads 221. In this way, for example, one or more nozzles of one or more print heads 221 are protected from dirt and / or from drying out, in particular if it is to be expected that this nozzle and / or this print head 221 will not be operated for a long time. This is the case, for example, when the printing unit 200 is switched off.
  • the at least one print head closure 608 and / or nozzle closure 608 can preferably be moved, in particular, between a standby position and at least one closure position swiveling.
  • the at least one print head closure 608 and / or nozzle closure 608 is preferably pivotable about a pivot axis and / or movable by means of at least one closure drive 606.
  • a plurality of print head closures 608 and / or nozzle closures 608 are preferably movable together and / or fastened to a common movable body which is correspondingly movable.
  • the at least one closure drive 606 is preferably designed as at least one linear drive, for example as at least one pneumatic cylinder and / or at least one hydraulic cylinder and / or as at least one electrical linear drive.
  • the at least one printing unit 200 is alternatively or additionally characterized in that the printing unit 200 has at least one closure holder 631, which is arranged on the at least one cross member 272, and which has at least one for contact with one on one of the at least one cross member 272
  • Printhead closure 608 and / or nozzle closure 608 provided in particular fifth contact point.
  • the respective print head closure 608 and / or nozzle closure 608 is further preferably arranged on another one of at least two cross members 272 and / or in particular rotatably mounted than the closure holder 631 assigned to this print head closure 608 and / or nozzle closure 608.
  • the printing assembly 200 each has Carrier body 616 has at least three, more preferably at least six such closure holders 631 arranged on the at least one cross member 272.
  • the at least one closure holder 631 preferably limits a movement space of the at least one printhead closure 608 and / or nozzle closure 608 at least in one direction. More preferably, the at least one closure holder 631 serves as a contact surface of the at least one printhead closure 608 and / or nozzle closure 608 in its closed position.
  • the at least one support body 616 can preferably be arranged in at least three provided positions, which relate to their position in relation to the storage direction C. differentiate.
  • the at least one support body 616 is preferably connected to the frame 283 via at least one energy chain.
  • the at least one energy chain is accordingly preferably rigidly connected on the one hand to the at least one support body 616 and on the other hand directly or indirectly on the frame 283.
  • At least one fluid line is preferably arranged per support body 616 in such a way that it extends in the transverse direction A over at least 50% of the working width of the printing unit 200 and that a plurality or more preferably each print head 221 arranged on this support body 616 is connected to this fluid line by means of a connecting line is.
  • the respective connecting line of the supporting bodies 616 is preferably connected at a respective first end of the respective supporting body 616 via a flexible section to a line system arranged on the frame 283.
  • a connecting line of a supporting body 616 is further preferably connected to a connecting line of an adjacent supporting body 616, in particular at a respective second end of the supply line related to the transverse direction A. In this way, a continuous flow of pressurized fluid can be achieved through the supply line of the two support bodies 616 with a correspondingly large delivery quantity.
  • pressure fluid is preferably transported from the line system into a supply line of a support body 616 and there to the respective print heads 221, and preferably additional pressure fluid is transported through the supply line of this support body 616 to the supply line of the adjacent support body 616 and there to the respective print heads 221 preferably, additional pressure fluid is transported through the supply lines of both supporting bodies 616 and back into the line system, which in this way only has to be arranged on one side of the frame 283.
  • the at least one printing unit 200 is preferably distinguished alternatively or additionally by the fact that the storage direction C of the respective support body 616 has at least one component which, parallel to a surface normal of a tangent surface, to a position of the substrate for printing substrate 02 which is closest to the support body 616 Transport route is oriented. More preferably, a deviation of the storage direction C from the direction of this respective surface normal is at most 40 °, even more preferably at most 25 °, even more preferably at most 10 ° and even more preferably at most 1 °.
  • a first of these at least three intended positions of the at least one support body 616 is preferably an insert position. This is preferably distinguished by the fact that with the support body 616 arranged in the use position, the print heads 221 arranged on this support body 616 are arranged in their respective print positions and / or the at least one first contact point 617 arranged on the at least one support body 616 and the at least one the at least one traverse 272 arranged second contact point 618 are in contact with one another and / or the at least one third contact point 621 arranged on the at least one support body 616 and the at least one fourth contact point 622 arranged on the at least one traverse 272 are in contact with one another.
  • the at least one support body 616 is arranged, for example, during the printing operation in the use position.
  • a second of these at least three intended positions of the at least one support body 616 is preferably a parking position.
  • the parking position is preferably distinguished by the fact that when the supporting body 616 is arranged in the parking position, a reusable space is released because the at least one first contact point 617 arranged on the at least one supporting body 616 and the at least one second contact point arranged on the at least one cross member 272 618 have a correspondingly large distance from one another, for example at least 5 cm, preferably at least 10 cm, more preferably at least 15 cm and even more preferably at least 20 cm.
  • This released, reusable space area is preferably used to enable the movement of the at least one print head closure 608 and / or nozzle closure 608 and / or a movement of one To enable cleaning device 623 in and / or against the transverse direction A.
  • a third of these at least three intended positions of the at least one support body 616 is preferably a protective position. With the support body 616 arranged in the protective position, at least one nozzle closure 608 and / or at least one print head closure 608 is preferably arranged in its closed position.
  • the at least one support body 616 is first lifted out of its use position in the storage direction C.
  • the at least one first contact point 617 arranged on the at least one support body 616 and the at least one second contact point 618 arranged on the at least one crossmember 272 become out of contact and there is initially rolling contact on the at least one support roller 601 of the at least one second contact point pair 623
  • the at least one third contact point 621 arranged on the at least one support body 616 and the at least one fourth contact point 622 arranged on the at least one cross member 272 then preferably also become out of contact.
  • the reusable movement releases the reusable space.
  • the at least one print head closure 608 and / or nozzle closure 608 is then preferably moved, in particular pivoted, from its ready position into its closed position.
  • the at least one printhead closure 608 and / or nozzle closure 608 and / or a component carrying this at least one printhead closure 608 and / or nozzle closure 608 has at least one movable guide element 633, in particular at least one with the at least one printhead closure 608 and / or nozzle closure 608 and / or the component that can move this at least one printhead closure 608 and / or nozzle closure 608 and jointly movable guide element 633.
  • the at least one cleaning device 263 is preferably supported on and / or on the at least one movable guide element 633 at least temporarily, while it is being moved in and / or counter to the transverse direction A and / or along a cleaning path, in particular along at least one guide 603, by means of the at least one cleaning drive 604.
  • the at least one cleaning device 263 preferably has at least one support roller for this.
  • the at least one cleaning drive 604 has, for example, at least one preferably rotating traction means, in particular at least one chain, to which or to which the at least one cleaning device 263 is attached.
  • a gearwheel that drives the traction mechanism, in particular the chain then causes the chain to rotate, as a result of which the cleaning device 263 is moved along the guide 603.
  • the cleaning device 263 has, for example, at least one fleece and at least one drive for further winding the at least one fleece. Additional devices such as pullers and / or collecting devices and / or spray nozzles for cleaning liquids and / or gases are also examples of components of the at least one cleaning device 263.
  • the at least one printhead closure 608 and / or nozzle closure 608 is left in its closed position and the at least one support body 616 is moved counter to the storage direction C until the printheads 221 arranged thereon are arranged in a position in which they are covered by the at least one print head closure 608 and / or nozzle closure 608, that is to say are preferably enclosed airtight.
  • the at least one support body 616 is then in the protective position.
  • the at least one support body 616 is preferably supported in its protective position on the print head closure 608 and / or nozzle closure 608 arranged in its closed position, in particular against gravity. Moving the at least one print head closure 608 and / or nozzle closure 608 into its closed position and the at least one support body 616 into its protective position is also possible independently of and in particular also without activating the at least one cleaning device 263.
  • the printhead closure 608 and / or nozzle closure 608 is therefore preferably pivotally mounted at any time on a crossmember 272 and, in its closed position, also rests on closure holders 631, which are preferably arranged on another crossmember 272, further preferably these two crossmembers 272 together forming a printhead space Limit 609 in and against the transport direction, to which at least one print head 221 is still preferably assigned, to which this print head closure 608 and / or nozzle closure 608 is functionally assigned.
  • At least one cleaning device 263 is preferably arranged per print head space 609, and more preferably two cleaning devices 263 are arranged per print head space 609. These can then be used simultaneously in different positions related to the transverse direction A and thus reduce a necessary period of time.
  • the cleaning devices 263 are preferably arranged outside the working width of the printing unit 200 during a printing operation in relation to the transverse direction A.
  • the side walls 271 of the frame 283 further preferably have recesses through which the cleaning devices 263 can be at least partially transported.
  • at least one guide element 634 is arranged, in particular projecting through the respective recess. This at least one guide element 634 is preferably designed as a rigidly arranged guide element 634.
  • such a guide element is arranged for each such recess.
  • guide elements 634 preferably form a guide system together with the movable guide elements 633 in the case of printhead closures 608 and / or nozzle closures 608 arranged in their closed position.
  • the cleaning devices 263 are from an area outside the working width of the printing unit 200 and, for example, also outside the frame 283 of the printing unit 200 to the print heads 221 and along the print heads 221 and movable back.
  • a stand arrangement is arranged that provides access for operators.
  • the standing areas allow, for example, access to the cleaning devices 263 and / or to the treads 237 of the protective covers 230; 232; 234; 236 and / or to an upper region of the dryer unit 300.
  • At least one temperature control device is arranged on the at least one support body 616.
  • the at least one temperature control device is used, for example, to control and / or maintain bending of the at least one supporting body 616 in a controlled manner and / or to compensate for undesired bending of the at least one supporting body 616.
  • the printing unit 200 then preferably has the at least one in particular first temperature control device for the targeted generation of a temperature difference between a first location of this at least one support body 616 and a second location of this support body 616 which is at least spaced from this first location in the transport direction.
  • This support body 616 Due to a temperature difference between two points of the at least one first support body 616 or another support body which are spaced apart from one another at least in the transport direction, different dimensions of this support body 616 in the transverse direction A result, for example, at these points relative to one another. This results in a deflection of this Support body 616.
  • This deflection means that those parts of this support body 616 that are not arranged in a stationary manner relative to the frame 283 are deflected and / or displaced at least in and / or counter to the transport direction.
  • the respective position and / or deflection of the respective support body 616 is preferably measured.
  • the printing unit 200 is preferably distinguished in that at least one first temperature control device for the targeted introduction and / or removal of thermal energy is arranged at the first point.
  • the at least one first temperature control device is preferably designed as at least one first heating device, in particular as at least one first heating wire.
  • the at least one first temperature control device has at least one fluid line for at least one temperature control fluid and / or the at least one first temperature control device has at least one Peltier element.
  • the respective temperature control device preferably extends over at least 10%, more preferably over at least 25%, even more preferably over at least 50% and even more preferably over at least 80% and even more preferably at least 100% of an extent of the respective support body 616 in the transverse direction A.
  • At least one control and / or regulating device is preferably arranged, these at least one control and / or regulating device preferably being connected to the at least one first temperature control device and / or to at least one first position sensor.
  • the crossbeams 272 can also be appropriately tempered, in particular if the pairs of contact points 619; 623, a corresponding deformation of the corresponding crossbeams 272 can be transmitted to corresponding supporting bodies 616.

Landscapes

  • Ink Jet (AREA)

Claims (15)

  1. Unité d'impression (200), dans laquelle l'unité d'impression (200) présente au moins un bâti (283), qui présente au moins deux parois latérales (271), entre lesquelles un trajet de transport prévu pour un transport de matériau à imprimer (02) s'étend au moins en partie et dans laquelle au moins une direction de transport est déterminée par le trajet de transport prévu pour un transport de matériau à imprimer (02) et dans laquelle l'unité d'impression (200) présente au moins un corps de support (616), mobile par rapport au bâti (283) dans au moins une direction d'éloignement (C) au moyen d'au moins un entraînement d'éloignement (614), qui s'étend au moins dans la direction transversale (A) entre les parois latérales (271) et dans laquelle respectivement au moins deux têtes d'impression (221) sont disposées sur l'au moins un corps de support (616) et peuvent être déplacées conjointement avec l'au moins un corps de support (616) et dans laquelle l'unité d'impression (200) présente au moins trois têtes d'impression (221) disposées les unes derrière les autres par rapport à la direction de transport, dans laquelle l'unité d'impression (200) présente au moins trois traverses (272), qui s'étendent respectivement au moins dans une direction transversale (A) entre les parois latérales (271) et qui sont disposées les unes derrière les autres par rapport à la direction de transport et dans laquelle au moins un premier dispositif supplémentaire (247 ; 263 ; 601 ; 602 ; 603 ; 604 ; 607 ; 608) différent de chaque tête d'impression (221), qui est associé à au moins une tête d'impression (221) avant disposée dans la direction de transport devant cette traverse respective des au moins trois traverses (272), est disposé sur chacune des au moins trois traverses (272) et dans laquelle l'au moins un premier dispositif supplémentaire (247 ; 263 ; 601 ; 602 ; 603 ; 604 ; 607 ; 608) est réalisé sous la forme d'au moins un élément d'appui (601 ; 602) et/ou sous la forme d'au moins un dispositif de nettoyage (263) réalisé sous la forme d'un dispositif de nettoyage à buse et/ou sous la forme d'au moins un guidage (603) d'un dispositif de nettoyage (263) et/ou sous la forme d'au moins un entraînement de nettoyage (604) d'un dispositif de nettoyage (263) et/ou sous la forme d'au moins un transmetteur de couple (607) et/ou sous la forme d'au moins une fermeture de tête d'impression (608) et dans laquelle au moins un deuxième dispositif supplémentaire (247 ; 263 ; 601 ; 602 ; 603 ; 604 ; 607 ; 608) différent de chaque tête d'impression (221), qui est associé à au moins une tête d'impression (221) arrière disposée dans la direction de transport derrière cette traverse respective des au moins trois traverses (272), est disposé sur chacune des au moins trois traverses (272) et dans laquelle l'au moins un deuxième dispositif supplémentaire (247 ; 263 ; 601 ; 602 ; 603 ; 604 ; 607 ; 608) est réalisé sous la forme d'au moins un élément d'appui (601 ; 602) et/ou sous la forme d'au moins un dispositif de nettoyage (263) réalisé sous la forme d'un dispositif de nettoyage à buse et/ou sous la forme d'au moins un guidage (603) d'un dispositif de nettoyage (263) et/ou sous la forme d'au moins un entraînement de nettoyage (604) d'un dispositif de nettoyage (263) et/ou sous la forme d'au moins un transmetteur de couple (607) et/ou sous la forme d'au moins une fermeture de tête d'impression (608) et/ou sous la forme d'au moins une caisse aspirante (247).
  2. Unité d'impression selon la revendication 1, caractérisée en ce que respectivement des espaces de tête d'impression (609) sont disposés dans la direction de transport entre les traverses (272) et qu'une traverse (272) respective est adjacente à un espace de tête d'impression (609) disposé devant la traverse (272) respective dans la direction de transport et est adjacente à un espace de tête d'impression (609) disposé derrière la traverse (272) respective dans la direction de transport et que l'au moins une tête d'impression (221) avant est disposée et/ou peut être disposée dans l'espace de tête d'impression (609) avant respectif et que l'au moins une tête d'impression (221) arrière est disposée et/ou peut être disposée dans l'espace de tête d'impression (609) arrière respectif.
  3. Unité d'impression selon la revendication 1 ou 2, caractérisée en ce que la direction transversale (A) est orientée perpendiculairement à chaque direction de transport déterminée par le trajet de transport prévu pour un matériau à imprimer (02) et horizontalement et/ou que la direction d'éloignement (C) est orientée perpendiculairement à la direction transversale (A) et/ou que la direction d'éloignement (C) présente au moins une composante dirigée verticalement vers le haut et/ou que l'au moins un corps de support (616) peut être déplacé linéairement et/ou que la direction d'éloignement (C) du corps de support (616) respectif présente au moins une composante, qui est orientée parallèlement à une normale à la surface d'une surface tangentielle en un point, le plus proche du corps de support (616), du trajet de transport prévu pour un matériau à imprimer (02).
  4. Unité d'impression selon la revendication 1 ou 2 ou 3, caractérisée en ce que chacune des au moins trois traverses (272) présente au moins une première barre transversale (611) et au moins une deuxième barre transversale (612) espacée de celle-ci, qui délimitent conjointement au moins un espace intérieur de la traverse (272) respective au moins en partie dans et à l'encontre de la direction de transport et qu'au moins un composant d'un dispositif de transport de gaz et/ou au moins un dispositif supplémentaire (247 ; 263 ; 601 ; 602 ; 603 ; 604 ; 607 ; 608) destiné à alimenter au moins une tête d'impression (221) en énergie et/ou substances de fonctionnement et/ou fluide d'impression et/ou données et/ou au moins un gaz, et/ou au moins un dispositif supplémentaire (247 ; 263 ; 601 ; 602 ; 603 ; 604 ; 607 ; 608) intérieur destiné au nettoyage et/ou à l'entretien et/ou au recouvrement d'au moins une tête d'impression (221), sont disposés dans l'au moins un espace intérieur respectif.
  5. Unité d'impression selon la revendication 1 ou 2 ou 3 ou 4, caractérisée en ce que l'unité d'impression (200) présente par corps de support (616) au moins un porte-fermeture (631), disposé sur une des au moins trois traverses (272), qui forme au moins un point de contact prévu pour un contact avec une fermeture de tête d'impression (608) et/ou fermeture de buse (608) disposée sur une des au moins trois traverses (272) et que l'au moins un porte-fermeture (631) délimite un espace de déplacement de l'au moins une fermeture de tête d'impression (608) et/ou fermeture de buse (608) au moins dans une direction et que la fermeture de tête d'impression (608) et/ou fermeture de buse (608) respective est disposée sur une autre des au moins trois traverses (272) que le porte-fermeture (631) associé à cette fermeture de tête d'impression (608) et/ou fermeture de buse (608).
  6. Unité d'impression selon la revendication 3, caractérisée en ce qu'un écart entre la direction d'éloignement (C) et la direction de cette normale à la surface respective atteint au plus 40° et/ou au plus 25° et/ou au plus 10° et/ou au plus 1°.
  7. Unité d'impression selon la revendication 1 ou 2 ou 3 ou 4 ou 5 ou 6, caractérisée en ce que l'au moins une unité d'impression (200) présente au moins deux et/ou au moins trois et/ou au moins quatre traverses (272), qui s'étendent respectivement au moins dans la direction transversale (A) entre les parois latérales (271) et qui sont disposées les unes derrière les autres par rapport à la direction de transport et qui sont reliées en particulier rigidement respectivement aux deux des au moins deux parois latérales (271) du bâti (283).
  8. Unité d'impression selon la revendication 4 ou 5 ou 6 ou 7, caractérisée en ce que l'au moins un composant du dispositif de transport de gaz est au moins une caisse aspirante (247).
  9. Unité d'impression selon la revendication 1 ou 2 ou 3 ou 4 ou 5 ou 6 ou 7 ou 8, caractérisée en ce que l'au moins un corps de support (616) peut être disposé dans au moins trois positions prévues, qui se différencient en ce qui concerne leur position par rapport à la direction d'éloignement (C) et qu'une première de ces au moins trois positions prévues de l'au moins un corps de support (616) est une position d'utilisation et qu'une deuxième de ces au moins trois positions prévues de l'au moins un corps de support (616) est une position d'éloignement et qu'une troisième de ces au moins trois positions prévues de l'au moins un corps de support (616) est une position de protection.
  10. Unité d'impression selon la revendication 1 ou 2 ou 3 ou 4 ou 5 ou 6 ou 7 ou 8 ou 9, caractérisée en ce que l'au moins un corps de support (616) est disposé de manière mobile dans et à l'encontre de la direction d'éloignement (C) entre au moins une position d'utilisation et au moins une position d'éloignement et qu'au moins un dispositif d'entretien (263) et/ou dispositif de nettoyage (263) de l'unité d'impression (200) et/ou au moins une fermeture de tête d'impression (608) et/ou au moins une fermeture de buse (608) de l'unité d'impression (200), lorsque le corps de support (616) est disposé dans la position d'éloignement, sont disposés de manière mobile et/ou peuvent être disposés dans une zone spatiale occupée au moins en partie par ce corps de support (616) dans sa position d'utilisation.
  11. Unité d'impression selon la revendication 4 ou 5 ou 6 ou 7 ou 8 ou 9 ou 10, caractérisée en ce qu'au moins un espace intérieur de la traverse (272) respective est obtenu entre l'au moins une première barre transversale (611) et l'au moins une deuxième barre transversale (612).
  12. Unité d'impression selon la revendication 11, caractérisée en ce que l'au moins une caisse aspirante (247) est disposée au moins en partie à l'intérieur de l'espace intérieur de l'au moins une traverse (272) et/ou, vu dans la direction de transport, au moins en partie entre l'au moins une première barre transversale (611) et l'au moins une deuxième barre transversale (612).
  13. Unité d'impression selon la revendication 1 ou 2 ou 3 ou 4 ou 5 ou 6 ou 7 ou 8 ou 9 ou 10 ou 11 ou 12, caractérisée en ce qu'au moins deux et/ou au moins trois caisses aspirantes (247) sont disposées et que chacune des au moins deux et/ou au moins trois caisses aspirantes (247) présente une ouverture d'entrée (243) respective, qui s'étend à elle seule sur une longueur d'entrée dans une direction transversale (A) qui correspond au plus à 60 % de la largeur de travail de l'unité d'impression (200).
  14. Unité d'impression selon la revendication 4 ou 5 ou 6 ou 7 ou 8 ou 9 ou 10 ou 11 ou 12 ou 13, caractérisée en ce que l'au moins un dispositif supplémentaire (247 ; 263 ; 601 ; 602 ; 603 ; 604 ; 607 ; 608) intérieur est réalisé sous la forme d'au moins d'un dispositif de nettoyage (263) et/ou sous la forme d'au moins un guidage (603) d'un dispositif de nettoyage (263) et/ou sous la forme d'au moins un entraînement de nettoyage (604) d'un dispositif de nettoyage (263) et/ou sous la forme d'au moins un transmetteur de couple (607) et/ou sous la forme d'au moins une fermeture de tête d'impression (608) et/ou sous la forme d'au moins une fermeture de buse (608) .
  15. Unité d'impression selon la revendication 1 ou 2 ou 3 ou 4 ou 5 ou 6 ou 7 ou 8 ou 9 ou 10 ou 11 ou 12 ou 13 ou 14, caractérisée en ce que l'au moins une tête d'impression (221) est réalisée sous la forme d'une tête d'impression à jet d'encre (221) et/ou que toutes les têtes d'impression (221) sont disposées de manière fixe dans un mode d'impression régulier.
EP16747522.7A 2015-08-18 2016-08-04 Agrégat d'impression Active EP3337661B1 (fr)

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DE102015215721.0A DE102015215721A1 (de) 2015-08-18 2015-08-18 Druckaggregat
PCT/EP2016/068601 WO2017029114A1 (fr) 2015-08-18 2016-08-04 Unité d'impression

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EP3337661A1 EP3337661A1 (fr) 2018-06-27
EP3337661B1 true EP3337661B1 (fr) 2020-03-11

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EP (1) EP3337661B1 (fr)
JP (1) JP6440898B2 (fr)
CN (1) CN108012536B (fr)
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WO (1) WO2017029114A1 (fr)

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DE102015215721A1 (de) 2017-02-23
WO2017029114A1 (fr) 2017-02-23
JP2018528098A (ja) 2018-09-27
EP3337661A1 (fr) 2018-06-27
US20180257381A1 (en) 2018-09-13
US10265962B2 (en) 2019-04-23
CN108012536A (zh) 2018-05-08
CN108012536B (zh) 2019-09-24
JP6440898B2 (ja) 2018-12-19

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