DE102014225210B4 - pressure unit - Google Patents

Abstract

Printing unit (200), wherein the printing unit (200) has at least one frame (283) and wherein the printing unit (200) at least a first, by at least two guide elements (241) with defined, for printing material webs (02) provided transport path and at least one relatively at least a first web fixing device (294) designed as a suction device for fixing a first section of a printing substrate web (02) relative to the first web fixing device (294) and and at least one support element (273; ) movable support member (273; 274) also relative to the frame (283) movable second as sow geinrichtung formed Bahnfixiereinrichtung (296) for fixing a second portion of a printing substrate (02) relative to the second Bahnfixiereinrichtung (296) and relative to the at least one movable support member (273; 274) and wherein the at least one support element (273; 274) is pivotally arranged together with the at least one second web fixing device (296) and together with the at least two guide elements (241) about at least one common pivot axis (281; 282) the second web fixing device (296) is movable relative to the first web fixing device (294), and wherein a distance between the at least one second web fixing device (296) and the at least one first web fixing device (294) is changeable.

Description

The invention relates to a printing unit and a method for handling a printing material web in a printing unit.

Printing presses use different printing methods. Non-impact printing processes (NIP = non-impact printing) are understood to mean printing processes which do not require a fixed, that is physically immutable, printing form. Such printing methods can produce different print images in each printing process. Examples of non-impact printing processes are ionographic processes, magnetographic processes, thermographic processes, and in particular inkjet printing processes or ink-jet printing processes. Such printing methods usually have at least one image-forming device, for example at least one print head. In the case of the inkjet printing method, such a printhead is designed, for example, as an inkjet printhead and has at least one and preferably several nozzles, by means of which specifically at least one printing fluid, for example in the form of ink drops, can be transferred to a printing material. The printing material should have as constant a distance as possible from the image-producing device, on the one hand in order to be able to coordinate the image formation in time and, on the other hand, to avoid damage to the image-forming device.

For example, in the inkjet printing process, in particular in connection with water-based ink, it may happen that deforms the substrate, such as waves beats. On the one hand, such waves can entail the risk of damage to both the printheads and the printing substrate and, on the other hand, lead to poor print quality, for example because of different long flying times of drops of pressurized fluid.

By the US 2012/0162299 A1 a printing unit is known which has a plurality of print heads and fixed guide elements in the region of the print heads.

By the WO 03/053705 A1 a printing unit is known which comprises a number of printheads and these printheads opposite web guide rollers, said web guide rollers are arranged together linearly offset from the printheads.

By the US 4 334 946 A a printing unit with a frame is known which comprises two guide elements, and a relative to the frame movable support member, wherein along the transport path, a first Bahnfixiereinrichtung for fixing a first portion of a printing substrate is arranged relative to the first Bahnfixiereinrichtung and wherein along the transport path with a the second web fixing device for fixing the same printing material web relative to the second web fixing device and relative to the movable support element is connected to the support element which is movable relative to the frame and is also movable relative to the frame, and wherein the support element together with the at least one second web fixing device and is arranged pivotable together with the at least two guide elements about a common pivot axis. A device for holding an adhesive strip is arranged. The US 4 334 946 A further discloses a method of joining two webs of material. Two holding devices hold a same material web, while an adhesive strip is held in a movable suction device in order to adhere it precisely.

By the JP 2007 - 147 817 A is a printing unit with frame known in which a material web is cut into sections, which are then transported individually. In this case, the uncut web is held relative to the frame and the cut portion is held relative to a support member and linearly moved relative to the frame. The JP 2007 - 147 817 A further discloses a corresponding method for handling a printing material web in a printing unit, in which the printing material web is cut into sections and the sections are treated separately from one another.

The invention has for its object to provide a printing unit and a method for handling a printing material in a printing unit.

The object is achieved by the features of claim 1 and claim 56.

A printing press preferably has at least one printing unit. The printing unit preferably has at least two imaging devices designed in particular as printheads, by means of which respective application sites for printing fluid are defined, wherein preferably at least two guiding elements of the printing aggregate define a transport path provided by the printing aggregate for the first printing substrate and at least two guiding elements are preferred two preferred fixed guide elements of the printing unit are. Preferably, a printing section of the transport path provided for printing begins at one along this provided transport path first job of the printing unit and ends of this printing section at a along this provided transport path last job of the printing unit. Due to the fixed guide elements, it is possible to build them up very easily. It is also possible to realize very large printing widths without problems with sagging guide elements.

Preferably, the printing unit is characterized in that along the printing section of this proposed transport path 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, with the intended transport defining guide elements are arranged one behind the other. This results in particular the advantage that a particularly large number of printheads and thus a high printing speed and high print quality can be realized.

A fixed guide element is to be understood in particular as meaning a guide element which is arranged immovably and / or stationary in a printing operation and / or which is neither rotatable by its own drive nor by contact with printing material and / or with respect to rotational movements and / or Rotary movements and / or pivoting movements to the transport path provided for substrate orthogonal axes is provided at most for pivotal movements together with other vanes around at least one common pivot axis. In particular, the at least one printing aggregate is preferably characterized in that preferably the at least two and more preferably the at least five, in particular fixed, guide elements are rotationally or pivotally movable about axes other than at least one common pivot axis. A fixed guide element is to be understood in particular as meaning a guide element which is arranged immovable relative to at least one support element carrying this guide element, more preferably at least one further stationary guide element being arranged immovably relative to the same at least one support element. In particular, the fixed guide elements are preferably fixed relative to at least one support frame of a pivoting device. The support element and / or the support frame itself is preferably arranged to be movable relative to a frame of the printing unit. Preferably, the fixed guide elements are fixed with respect to rotational movements about axes of rotation at least with respect to those axes of rotation which intersect the respective guide element. Preferably, the fixed guide elements are in particular mutually fixed guide elements.

The fact that at least one guide element is arranged a designated transport path with fixing, preferably means that the intended transport path through the at least one guide element and optionally but not necessarily determined by other components of the printing unit.

Preferably, the printing aggregate is characterized alternatively or additionally by the fact that the at least two and more preferably at least five fixed guide elements each have a deflection angle with respect to the transport path provided for the substrate, which at least 0.5 °, more preferably at least 1 ° and even more preferably at least Is 1.5 °, and which is preferably at most 5 °, more preferably at most 3 °, and still more preferably 2.5 °. This results in particular the advantage that a particularly flat course of the printing section of the intended transport path can be realized and thus many print heads can be arranged one behind the other. In addition, reduced friction at a small deflection between the substrate and the particular fixed vanes.

A transverse direction is preferably a horizontal, orthogonal to the intended for printing material transport path through the at least one printing unit oriented direction. Preferably, the printing unit is characterized alternatively or additionally by the fact that the at least two and preferably at least five fixed guide elements each have over more than half of their extent in the transverse direction a radial symmetry or even circular cross-section. Radial symmetry or rotational symmetry is to be understood as a form of symmetry in which the rotation of an object about a certain angle of rotation about an axis, in particular the axis of rotation or the axis of symmetry, brings this object back into coincidence with itself. In the case of two-dimensional objects, this axis of rotation or axis of symmetry preferably extends through a centroid, in the case of three-dimensional objects preferably through a center of gravity of the respective object. One speaks preferably of an n-fold radial or rotational symmetry, when a rotation by an angle of rotation of 360 ° / n images the object on itself. n is preferably a natural number. Radially symmetrical objects, which are imaged on themselves by a rotation angle around the axis of rotation or symmetry axis, for example cylinders, are not only radially symmetric, but even rotationally symmetrical. Preferably, the printing unit is characterized alternatively or additionally by the fact that a respective outer surface of the particular at least two and Preferably, at least five guide elements is formed at least within a working range of the printing unit cylinder jacket. This results in particular in the advantage that the guide elements can easily be re-installed or fixed and further used during wear of their surface sections coming into contact with the printing material by a certain angle, for example given a predetermined angle. With a very small deflection angle results in a particularly large number of possible re-use of Bahnleitelemente. Due to the large number of web guiding elements and the small deflection angle, only low frictional forces and thus little wear of the guide elements occur. Overall, a very long service life is achieved before wear-related vanes would have to be replaced.

Preferably, the printing unit is characterized alternatively or additionally by the fact that these at least two and preferably at least five provided transport path in the region of the printing section with defining guide elements about at least one common pivot axis are pivotally mounted, in particular around these at least two and preferably at least five vanes between to move a respective working position and a respective maintenance position. Preferably, these at least two and preferably at least five of these provided transport path in the region of the printing section with defining guide elements by means of at least one pivot drive and / or in at least one common movement and / or arranged relative to the at least two printheads about the at least one common pivot axis pivotally. This results in particular the advantage that a maintenance room can be created in particular for cleaning a shielding and / or the guide elements. Preferably, the printing aggregate is characterized alternatively or additionally by the fact that these at least two and more preferably at least five guide elements are arranged pivotally about the at least one common pivot axis, at least 10 °, more preferably at least 20 ° and even more preferably at least 30 °.

Preferably, the printing unit is characterized alternatively or additionally by the fact that a main conveying direction determined by a straight-line connection between a first guide element provided on the printing section of the transport path provided for the printing substrate and a main conveying direction fixed to the printing section of the transport path provided for the printing substrate are oriented orthogonal to the transverse direction is and that the main conveying direction is arranged at arranged in its maintenance position vanes at an angle of at most 30 °, more preferably at most 20 ° and even more preferably at most 10 ° to a vertical direction. This results in particular the advantage that the maintenance room is particularly large and the vanes are particularly accessible in their maintenance position. In particular, large printing substrate widths or working widths of the printing unit can thus be realized.

Preferably, the printing unit is characterized alternatively or additionally by the fact that the main conveying direction with arranged in its working position vanes at an angle of at least 10 °, more preferably at least 20 ° and even more preferably at least 30 ° and at most 70 °, more preferably at most 55 ° and even more preferably at most 40 ° is aligned to a horizontal plane. This results in particular in the advantage that even the lowermost printheads are not arranged too obliquely and that nevertheless a rising course of the printing section is made possible. As a result of the increase, it is possible to pass the web directly thereafter through a dryer essentially from top to bottom, without bringing deflecting means into contact with the freshly printed side of the web. Preferably, the printing unit is characterized alternatively or additionally by the fact that provided for printing material transport path along the printing section is curved exclusively in one direction, in particular downwards. A downward curvature is not inconsistent with an upwardly extending transport path, but means, for example, a continuous or gradually flattening in the course of the transport path increase. Preferably, the printing unit is characterized alternatively or additionally by the fact that the transport path provided for the printing material is limited along the printing section exclusively on exactly one side of components of the printing unit and / or contacted and / or tangent thereto.

Preferably, the printing unit is characterized alternatively or additionally by the fact that the at least two print heads each have a plurality of nozzles and that more preferably each print head at least one nozzle has a target area, at least and more preferably exactly one of at least two and more preferably at least five preferably fixed guide elements cuts. This is preferably true in particular in each case in its printing position arranged respective print head and in each case in its working position arranged respective guide element. This preferably applies alternatively or additionally for several or more preferably all nozzles of the respective print head. This results in particular the advantage that the printing fluid is applied to the substrate in a range in which it is particularly flat, because it is pulled by the deflection angle against the corresponding guide element. In particular, water-based printing fluid can in principle swell the printing material, which can lead to deformations, in particular corrugations of the printing substrate. This is particularly critical in connection with non-solid and / or variable printed images. As a result of the orientation of the nozzles on the guide elements and thus on the flat-drawn areas of the printing material, printing errors and / or damage to the nozzles arranged at a short distance on the intended transport path are thus reduced and / or avoided. In particular, as far as such deformations do not occur too greatly, all the nozzles may also have target areas which do not cut any of the at least two and more preferably at least five preferably fixed vanes, but pass exclusively between the vanes and the vanes.

Preferably, the printing unit is characterized alternatively or additionally by the fact that at least two of these provided transport path in the region of the printing section with defining guide elements at three spaced apart in the transverse direction, preferably formed as support areas bodies with a total of at least two lateral support elements and at least one inner support member is in contact and thereby fixed in its position. Further preferably, the printing unit is characterized alternatively or additionally by several or even more preferably all of the at least two and preferably at least five provided transport path in the region of the printing section with defining guide elements at three spaced apart in the transverse direction, preferably designed as bearing areas with points a total of at least two lateral support members and at least one inner support member are in contact and thereby fixed in their position, wherein preferably the plurality or guide elements are each in contact with the same lateral and / or inner support members. This results in a supporting effect on the guide elements between the outer Eden of the guide elements, which thereby less or not at all tend to be bent by gravity and / or the web tension. Such a deflection otherwise would have an effect on the distance between the nozzles and the printing substrate. Thus, a high print quality is ensured even with large web widths. Preferably, the printing unit is characterized alternatively or additionally by the fact that at least one inner support element is in contact with the at least one guide element, whose position relative to the transverse direction is at least one nozzle of at least one print head of the printing unit matches.

Preferably, the printing unit is characterized alternatively or additionally by the fact that within the at least one printing unit at least temporarily along at least one Einziehwegs movable and more preferably of any substrate different Einziehmittel arranged for drawing a printing substrate and / or can be arranged. This results in particular the advantage that a particularly simple and secure feeding of printing material in the printing unit and / or the printing machine is made possible, which comes in particular for large web widths to bear.

Preferably, the printing unit is characterized alternatively or additionally by the fact that the printing unit has at least one first, by at least two vanes with fixed, provided for printing material paths and at least one movable relative to the frame at least one particular stationary frame or machine frame , In particular pivotable support member and that along this first provided transport path at least a first Bahnfixiereinrichtung for fixing a first portion of a printing substrate is arranged relative to the first web fixing and / or relative to the frame. A fixation is to be understood in particular not merely a support against gravity, but a relative immobility, in particular with respect to any movement in any direction. Preferably, the printing unit is characterized alternatively or additionally by the fact that along this first provided transport path and in particular after the at least one first Bahnfixiereinrichtung at least one connected to the at least one movable relative to the frame support member and at least together with this at least one movable relative to the frame Supporting element is also arranged relative to the frame movable second web fixing device for fixing a second portion of a printing substrate relative to the second web fixing device and / or relative to the at least one movable support member. Preferably, the at least one first web fixing device is arranged on the frame. A common movement of two objects is to be understood in particular as meaning a movement in which the centers of gravity of these objects move relative to another object, for example the one to the frame, but in which a distance between these pivot points remains the same.

Preferably, the printing unit is characterized alternatively or additionally by the fact that the at least two of the first provided for printing material transport path with defining guide elements together with the at least one support element relative to the frame movable, in particular pivotally mounted, preferably on this at least one support element. The at least two guide elements are preferably relative to the at least one support element fixed guide elements. Preferably, the printing unit is characterized alternatively or additionally by the fact that the at least one support element is pivotally arranged together with the at least one second Bahnfixiereinrichtung and / or together with the at least two vanes about the at least one common pivot axis, in particular by means of at least one common pivot drive and / or in a joint movement. Preferably, the at least one second web fixing device is arranged to be movable independently of the at least one first web fixing device. Preferably, the printing unit is characterized alternatively or additionally by the fact that the second web fixing device is movable in particular together with the at least two guide elements 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 is variable. Preferably, the printing unit is characterized alternatively or additionally by the fact that the at least one first web fixing device is arranged on the frame of the printing unit. Preferably, the printing unit is characterized alternatively or additionally by the fact that an optionally present maximum travel of the at least one first Bahnfixiereinrichtung is smaller than one tenth of a maximum travel of the at least one second Bahnfixiereinrichtung.

Preferably, the printing aggregate is characterized alternatively or additionally by the fact 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 material web fixed thereto at different distances from the at least one imaging device, which is preferably designed as a print head.

Preferably, the printing unit is characterized alternatively or additionally by the fact that the printing unit has at least two imaging devices, are determined by the respective application points for printing fluid and that a printing section of the first provided for substrate transport path starts at a along this provided transport path first job of the printing unit and at one along this provided transport path last job site of the printing unit ends and that transport path are arranged at least two the intended transport path with defining guide elements along the printing section of this first provided one behind the other.

Preferably, the printing unit is characterized alternatively or additionally by at least one separating device and / or at least one connecting device being arranged along the intended transport path between the at least one first web fixing device and the at least one second web fixing device. Preferably, the printing unit is characterized alternatively or additionally by the fact that the first section of the printing substrate and the second section of the printing material at least before a possible separation of a same substrate web belong.

Preferably, the printing unit is characterized alternatively or additionally by the fact that the at least one first web fixing device and / or the at least one second web fixing device is or are designed as a suction device. Preferably, the printing unit is characterized alternatively or additionally by the fact that the at least one first web fixing device and / or the at least one second web fixing device is or are designed as a clamping device

Preferably, the printing unit is characterized alternatively or additionally by the at least one first web fixing device and the transport path provided by the substrate being held by a roll holding device and / or a post-processing device at least twice, more preferably at least five times and even more preferably at least ten times as far away as from a nearest job site of the printing unit.

Preference is also given to a method for handling a printing material web in a printing unit, wherein preferably initially a printing material web is set to a standstill and wherein at least a portion of the printing material by means of a first Bahnfixiereinrichtung fixed relative to this first Bahnfixiereinrichtung and / or relative to a frame of the printing unit and wherein at least a portion of the printing material web is fixed by means of a second web fixing device relative to this second web fixing device and / or relative to a movable, this second web fixing device supporting support member of the printing unit. Such fixations are preferably carried out by activation of at least one suction device. The printing material web is preferably arranged in a first section and at a separating point arranged along the printing material web between the first web fixing device and the second web fixing device the second section so that at least a part of the first section of the at least one printing material web is fixed relative to the first web fixing device and / or relative to the frame, and so that at least a part of the second section of the at least one printing material web relative to the second web fixing device and / or or is fixed relative to the support element carrying the second web fixing device and / or preferably relative to the at least two guide elements which are movable together with the at least one support element. The at least one second web fixing device is then preferably moved together with the second section of the printing material web fixed thereon and removed from the first web fixing device and the first section of the printing material web fixed thereto.

As an alternative or in addition, the method is preferably characterized in that the at least one second web fixing device is moved together with the second section of the printing material web fixed thereon and removed from the first web fixing device and the first section of the printing material web fixed thereto by the supporting element carrying the second web fixing device is pivoted together with the second web fixing device to at least one common pivot axis.

Preferably, the method is characterized alternatively or additionally by the fact that the removal of the second portion of the printing material from the first section of the printing material web a maintenance room is released, are preferably carried out in the maintenance. For example, during maintenance at least one operator and / or at least one maintenance device is at least temporarily positioned such that a straight-line connection between the first web fixing device and the second web fixing device intersects this operator and / or this maintenance device. A maintenance work consists, for example, at least in a cleaning of at least one shielding device. Preferably, the method is alternatively or additionally characterized in that during the removal of the second portion of the printing material from the first section of the printing material at least one guide element defining the transport path moves to a maintenance position, in particular is pivoted and that further preferably at least one shielding device and / or or at least a nozzle of a print head of the printing unit is accessible.

Preferably, the method is characterized alternatively or additionally by the fact that at least stand space along a supply path from a standby position is moved to an insertion position in which both a first distance between the footprint and the first Bahnfixiereinrichtung and a second distance between the footprint and the second web fixing device are each smaller than a third distance between the first web fixing device and the second web fixing device. Preferably, the method is characterized alternatively or additionally by the fact that thereafter, for example, after performing the maintenance, the at least one footprint is moved back to its ready position.

Preferably, the method is characterized alternatively or additionally by the fact that thereafter the at least one second web fixing device moves together with the second section of the printing material web fixed thereto and moves toward the first web fixing device and the first section of the printing material web fixed thereto, in particular is pivoted, in particular until previously separated ends of the two sections of the printing material again lie opposite. Preferably, the method is alternatively or additionally characterized in that thereafter the previously separated ends of the two sections of the printing material web are connected to one another, for example by an adhesive process.

Preferably, the method is characterized alternatively or additionally by the fact that thereafter the first fixing device and the second fixing device are deactivated to release the printing material web of these, for example, in which a negative pressure of at least one suction device is reduced.

Preferably, the printing machine having the at least one first printing unit is characterized in that at least one first dryer is arranged along the transport path provided for the printing material after the at least one first printing unit, which has a portion of the transport path provided for the printing substrate which is formed by a drying section Einwirkbereich of at least one dryer is set and that in at least half and more preferably at least in 75% of the entire drying section provided for the substrate transport direction has at least one vertical, preferably downwardly facing component which is greater than any optional horizontal component this transport direction. This results in a particularly safe construction, because even at a standstill and / or tearing of the printing material is prevented that substrate is left directly above and / or on hot components of the dryer and is damaged or even catches fire.

The invention is preferably applicable to various non-impact printing processes, in particular for ionographic processes, magnetographic processes, thermographic processes and in particular inkjet printing processes or ink-jet printing processes. In the foregoing and hereinafter, for "inks" set out embodiments and variants - as far as no apparent contradiction - apply to any kind of flowable printing fluids, especially on colored or colorless paints, and on relief-forming materials such as pastes and by - only imaginary or actual - replacement of the term "ink" by the generalized term "printing fluid" or a special term "paint", "higher viscosity ink", "low viscosity ink" or "ink" or "paste" or "pasty material" transfer.

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

• 1 eine schematische Darstellung eines Transportwegs für Bedruckstoff durch ein Druckaggregat und einen Trockner;
• 2 eine schematische Darstellung einer Umlenkung einen Bedruckstoffs an einem Leitelement;
• 3 eine schematische Darstellung einer Menge von Leitelementen, die durch einen gemeinsamen Tragrahmen gehalten sind;
• 4 eine schematische Darstellung einer Haltevorrichtung für ein Leitelement;
• 5 eine schematische Darstellung eines Teils eines Druckabschnitts;
• 6a eine schematische Darstellung eines Druckaggregats mit Leitelementen in einer Arbeitsposition und Druckköpfen in einer Druckposition;
• 6b eine schematische Darstellung des Druckaggregats gemäß 1a mit Leitelementen in einer Arbeitsposition und Druckköpfen in einer Abstellposition;
• 6c eine schematische Darstellung des Druckaggregats gemäß 1a mit Leitelementen in einer Wartungsposition und Druckköpfen in einer Druckposition;
• 7a eine schematische Darstellung eines Druckaggregats mit Bahnfixiereinrichtungen und mit Leitelementen in einer Arbeitsposition;
• 7b eine schematische Darstellung eines Druckaggregats mit Bahnfixiereinrichtungen und mit Leitelementen in einer Wartungsposition;
• 8a eine schematische Darstellung eines Druckaggregats mit deaktivierter Umlenkeinrichtung und mit Leitelementen in einer Arbeitsposition;
• 8b eine schematische Darstellung eines Druckaggregats mit deaktivierter Umlenkeinrichtung und mit Leitelementen in einer Wartungsposition;
• 8c eine schematische Darstellung eines Druckaggregats mit aktivierter Umlenkeinrichtung und mit Leitelementen in einer Wartungsposition.

Show it:

• 1 a schematic representation of a transport path for substrate by a printing unit and a dryer;
• 2 a schematic representation of a deflection of a printing substrate on a guide element;
• 3 a schematic representation of a set of vanes, which are held by a common support frame;
• 4 a schematic representation of a holding device for a guide element;
• 5 a schematic representation of a portion of a printing section;
• 6a a schematic representation of a printing unit with vanes in a working position and printheads in a printing position;
• 6b a schematic representation of the printing unit according to 1a with guide elements in a working position and printheads in a parking position;
• 6c a schematic representation of the printing unit according to 1a with vanes in a maintenance position and printheads in a print position;
• 7a a schematic representation of a printing unit with Bahnfixiereinrichtungen and with guide elements in a working position;
• 7b a schematic representation of a printing unit with Bahnfixiereinrichtungen and with guide elements in a maintenance position;
• 8a a schematic representation of a printing unit with deactivated deflection and with guide elements in a working position;
• 8b a schematic representation of a printing unit with deactivated deflection and with guide elements in a maintenance position;
• 8c a schematic representation of a printing unit with activated deflection and with vanes in a maintenance position.

The term of a pressurized fluid in the foregoing and hereinafter ink and printing inks, but also paints and pasty materials are summarized. Preference is given to pressure-fluid materials passing through a printing press 01 or at least one printing aggregate 200 the printing press 01 on a substrate 02 be transmitted and / or transferable and preferably in finely structured form and / or not only over a large area a preferably visible and / or perceptible by sensory and / or machine detectable texture on the substrate 02 justify. Inks and printing inks are preferably solutions or dispersions of at least one colorant in at least one solvent. Suitable solvents include, for example, water and / or organic solvents. Alternatively or additionally, the pressure fluid may be formed as under UV light crosslinking pressure fluid. 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 may be pigments and / or dyes, pigments being insoluble in the application medium, while dyes are soluble in the application medium.

For the sake of simplicity, the term "printing ink" is to be understood in the sense of a liquid or at least free-flowing dyeing fluid to be printed in the printing press in the preceding and following paragraphs, which not only refers to the colloquial expression of the term "Ink" brought in conjunction higher-viscosity dyeing fluid for use in rotary printing machines, but in addition to these higher viscosity dyeing fluids in particular also low-viscosity dyeing fluids such as "inks", especially inkjet inks, but also powdered dyeing fluids such. As toner includes. So are in the foregoing and hereinafter especially colorless paints meant when talking of printing fluids and / or inks and / or printing inks. Preference is given in the following and in particular also means for a pretreatment (so-called precoating) of the printing substrate 02 meant when talking of printing fluids and / or inks and / or inks. As an alternative to the term pressurized fluid, the term coating agent is to be understood as synonymous.

As a printing press 01 Here is one at least a pressurized fluid on a substrate 02 to understand the application or machine capable of being applied. A printing press 01 preferably has at least one printing material source, preferably at least a first printing unit 200 Preferably, at least one first drying-promoting agent, ie first drying aid, is preferred 301 , z. B. a first dryer 301 , and preferably at least one post-processing device. The printing press 01 optionally has, for example, at least a second printing unit and, for example, at least a second drying-promoting agent, ie drying aids, for. B. on a second dryer. The printing press 01 is preferred as an inkjet printing machine 01 educated. The printing press is preferred 01 as a roll printing machine 01 formed, more preferably as a roller inkjet printing machine 01 , The printing press 01 can be used as a total or, if appropriate, other non-impact and / or printing form-based process - by inkjet or inkjet printing machine 01 be executed, in particular as an inkjet printing machine 01 , The at least one first printing unit 200 is preferred as at least a first ink jet printing unit 200 educated.

In the case of a roll printing press 01 the printing material source is designed as Rollenabspulvorrichtung. In the printing material source is preferably at least one printing substrate 02 aligned, preferably at least with respect to an edge of this substrate 02 , In the Rollenabspulvorrichtung a roll printing machine 01 becomes at least one web-shaped substrate 02 So a printing material web 02 , preferably a paper web 02 from a substrate roll 101 unwound and preferably with respect to their edges in an axial direction A aligned. The axial direction A is preferably one direction A parallel to an axis of rotation of a substrate roll in a transverse direction A extends. The transverse direction A is preferably a 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 by the at least one first printing unit 200 oriented. A transport path of the at least one printing substrate 02 and in particular the printing material web 02 runs after the at least one printing material preferably by the at least one first printing unit 200 where the substrate 02 and in particular the printing material web 02 is preferably provided by means of at least one ink on one side with a printed image.

In the following, the invention will be described with reference to an inkjet printing machine 01 described. However, the invention can also be used for other non-impact printing methods as far as there are no contradictions. In the following, the invention will be described in connection with a web-shaped printing substrate 02 So a printing material web 02 described. Corresponding features are preferred but also on printing machines 01 for sheet-shaped substrate 02 applicable.

In the Rollenabspulvorrichtung at least one Bedruckstoffrolle is rotatably arranged. In a preferred embodiment, the Rollenabspulvorrichtung is adapted to receive a Bedruckstoffrolle, thus has only one storage position for a Bedruckstoffrolle on. In another embodiment, the Rollenabspulvorrichtung is designed as a roll changer and has storage positions for at least two Bedruckstoffrollen. Preferably, the roll changer is designed such that it enables a flying roll change, that is to say a joining of a first printing material web 02 a currently processed substrate roll with a second substrate web 02 a substrate roll to be subsequently processed while both the currently processed substrate roll and the substrate roll to be subsequently processed rotate.

Preferably, the Rollenabspulvorrichtung along the intended transport path of the printing substrate 02 according to a roll holding device a preferably arranged on a dancer lever deflector dancer roller and / or a first web edge aligner and / or one, formed by a tension roller and a Zugspresseur feed nip and designed as a first measuring roll, in particular feed measuring roll first measuring device having indenting on. This tension roller preferably has its own drive motor designed as a traction drive motor, which is preferably connected to a machine control. By means of the dancer roller, a web tension is adjustable and durable within limits and / or the web tension is preferably kept within limits. Optionally, the Rollenabspulvorrichtung an adhesive and cutting device, by means of a roll change flying, ie without stopping the printing material 02 can go on. Following the first web edge aligner, the web feed-in is preferably arranged. As part of the intake system, the at least the draw roller is preferably arranged, with which preferably the draw press is arranged to form the draw-in gap together. Of the Feed nip serves to regulate a web tension and / or a transport of the printing material 02 ,

Under a printing unit 200 is a device to understand, by means of a web or sheet-shaped substrate 02 at least on one of its sides is or can be provided with at least one pressurized fluid. The at least one first printing unit 200 the printing press 01 preferably has at least one pressure point 201 on. Under a pressure point 201 In this case, a preferred complete range is to be understood in the contact between a respective same pressure fluid and a printing material 02 is manufactured or can be produced. The term the pressure point 201 should also be used when the pressure fluid without pressure between substrate 02 on the one hand and a component transferring the pressure fluid, on the other hand, onto the printing material 02 is applied, for example, by impinging freely movable pressure fluid on the substrate 02 , For example, flying drops of the pressurized fluid. Preferably comprises a pressure point 201 all areas responsible for an impact of a particular, in particular this pressure point 201 associated pressure fluid on the substrate 02 are provided. In the case of a printing unit operating according to the ink-jet printing method 200 includes, for example, a pressure point 201 all areas that impact a black ink on a first page of the substrate 02 are provided.

The at least one first printing unit 200 preferably has several pressure points 201 on, each associated with 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 is a dimension which is preferably orthogonal to the intended transport path of the printing substrate 02 by the at least one first printing unit 200 extends, more preferably in the transverse direction A , The transverse direction A is preferably a 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, which is a substrate 02 may have to still with the printing press 01 to be processed, so a maximum with the printing press 01 processable substrate width. The working width of the printing press 01 preferably corresponds to the working width of the at least one first printing unit 200 ,

Every bruise 201 preferably has at least one job site 211 on. Every job 211 is preferably at least one imaging device 221 assigned, in particular at least one print head 221 and more preferably at least one print head row 222 , Every job 211 preferably extends in the transverse direction A , more preferably over the entire working width of the printing press 02 , In the case of an inkjet printing machine 01 is the at least one imaging device 221 preferred as at least one print head 221 , in particular inkjet printhead 221 educated. imaging devices 221 such as printheads 221 usually have a limited dimension, especially in the transverse direction A , This results in a limited area of the printing material 02 on top of a respective printhead 221 Pressure fluid can be applied. Therefore, usually several imaging devices 221 or printheads 221 in the transverse direction A arranged one behind the other. Such with respect to the transverse direction A consecutively arranged printheads 221 be as Druckkopfreihe 222 designated. The following are broken print head rows 222 and continuous print head rows 222 described. In the special case of extending over the entire working width printhead 221 should this also as Druckkopfreihe 222 apply, in particular as a continuous print head row 222 ,

Usually, such individual printheads 221 not provided with nozzles up to an edge of its housing. Therefore, preferably at least two and more preferably exactly two are in the transverse direction A extending printhead rows 222 along the for the substrate 02 provided transport path offset from each other. Such printhead series 221 are, for example, interrupted print head rows 222 , In each case two such particular interrupted print head rows 222 together form a double row 223 of printheads 221 , By appropriate staggered arrangement of the printheads 221 the two interrupted print head rows 222 is preferably the entire working width of the printing press 01 and / or the at least one first printing unit 200 accessible from nozzles of the printheads. Preferred are 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 several printhead rows 222 , more preferably at least four double rows 223 and even more preferably at least eight double rows 223 of printheads 221 arranged in succession, in particular for the transport of the printing material 02 aligned transport path. Each double row 223 of printheads 221 is preferably a pressurized fluid, in particular assigned and / or assignable an ink of a particular color, for example in each case 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 a pre-treatment (precoating) of the printing material 02 or a special color. With appropriate design of the printheads 221 is alternatively also conceivable, a continuous Druckkopfreihe 222 to arrange their nozzles together the complete working width of the printing press 01 cover.

Each nozzle is preferably a clearly defined target area in the direction A the width of the printing material web 02 and preferably in the transverse direction A related assigned. Each target area of a nozzle is preferably uniquely determined at least in the printing operation. In particular, a target area of a nozzle is that, in particular, substantially rectilinear space area which extends in a direction of ejection of this nozzle from this nozzle. An impact area is preferably an area that is suitable for contact of pressurized fluid with the printing substrate 02 is provided, in particular for drops of pressurized fluid with the substrate 02 , Each nozzle of each printhead 221 An impingement region is preferably assigned, in particular in a direct inkjet printing process. An impact area of a printhead 221 is preferably a sum of all impact areas of nozzles of this printhead 221 , An order office 211 is preferably a sum of impact areas of particular functionally combined printheads 221 , which together cover the entire working width of the printing press 01 span. In the case of as double rows 223 trained pairs of interrupted printhead rows 222 is an order office 211 preferably a sum of impact areas of the print heads 221 , which together form the double row. In the case of continuous print head rows 222 is an order office 211 preferably a sum of impact areas of the print heads 221 , which together make the continuous print head row 222 form.

For example, at least one pressurized fluid has multiple application sites 211 assigned, for example, in the form that two double rows 223 of printheads 221 eject or eject a same pressure medium. This is useful, for example, to increase a resolution of a printed image and / or to increase a speed of a printing process. These multiple jobs 211 then together form the pressure point associated with this printing medium 201 ,

For example, a first pressure point along the intended transport path is used 201 and / or first job site 211 the application of an agent or mixture of substances for the pretreatment (precoating) of the printing material 02 , As a result, this agent or substance mixture selectively and selectively to the substrate 02 are applied, in particular only at those locations where a further treatment of the printing material 02 takes place, which require such a pretreatment, for example, applying a further pressurized fluid.

A printing unit 200 For example, only one pressure point 201 include, for example for the color black. This preferably has at least one first printing unit 200 but how do you describe several bruises 201 on. The bruises 201 can spatially connect directly to each other or be spaced apart, for example, separated by color. Under the term of a pressure point 201 should also fall a section that -. B. without interruption by another color - several successive jobs 211 having the same color. Are however single or multiple order places 211 a color along the substrate 02 provided transport path considered by at least one single or multiple job site 211 separated at least one other color, they represent in this sense two different pressure points 201 In the case of only one pressure point 201 At the same time, this represents the first and the last point of pressure 201 of the relevant printing unit 200 represents.

For example, in the case of an indirect ink-jet printing method, a printing location is a contact area between a transfer body and the printing substrate 02 ,

This preferably has at least one printing unit 200 at least one print head 221 which is more preferred than at least one inkjet printhead 221 is trained. Every printhead 221 preferably has a plurality of nozzles from which drops of pressurized fluid, in particular ink drops are ejected and / or ejected. This preferably has at least one printing unit 200 at least one nozzle bar 231 on. A nozzle bar 231 is a component that preferably over at least 80% and more preferably at least 100% of the working width of the printing press 01 extends and / or preferably as a carrier of the at least one print head 221 serves. In this case, for example, a single or are preferably a plurality of nozzle bars 231 per printing unit 200 arranged. More preferably, the at least one printing unit 200 at least three nozzle bars 231 on, 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 orthogonal to the intended transport path of the printing material 02 over the entire working width of the printing press 01 , especially in the transverse direction A , The at least one nozzle bar 231 preferably has at least one Row of nozzles, in particular characterized in that at least one nozzle having printhead 221 on the at least one nozzle bar 231 is arranged. The at least one row of nozzles points in the transverse direction A Seen preferably over the entire working width of the printing press 01 at regular intervals nozzle openings. In one embodiment, this is a single continuous printhead 221 arranged in the transverse direction A over the entire working width of the printing press 01 extends. In another preferred embodiment, in the transverse direction A side by side several print heads 221 on the at least one nozzle bar 231 arranged.

Preferably, the at least one nozzle bar 231 in each case at least one print head 221 and preferably each multiple printheads 221 on. In the case where the at least one nozzle bar 231 only one print head at a time 221 has, this printhead extends 221 preferably over an entire working width of the printing press 01 , In the case where the at least one nozzle bar 231 several print heads each 221 have these printheads 221 preferred as at least one print head row 221 or more preferably as at least one double row 223 of printheads 221 formed and extends the at least one print head row 222 or double row 223 of printheads 221 preferably over an entire working width of the printing press 01 , In the case of a double row 223 of printheads 221 is the at least one row of nozzles of the respective nozzle bar 231 preferably on at least two interrupted print head rows 222 divided up.

Indicates a printhead 221 several nozzles, so form all target areas of the nozzles of this printhead 221 together a workspace of this printhead 221 , Workspaces of Printheads 221 a nozzle bar 231 and in particular a double row of printheads 221 boundaries in the transverse direction A seen at each other and / or overlap in the transverse direction A seen. In this way is also in the axial direction A non-continuous printhead 221 ensured that in the transverse direction A seen at regular and preferably periodic distances target areas of nozzles of the at least one nozzle bar 231 and / or in particular each double row 223 of printheads 221 lie. In any case, an entire working area of the at least one nozzle bar extends 231 preferably over at least 90% and more preferably 100% of the working width of the printing machine 01 in the transverse direction A or the entire width of the printing material guide 249 , On one or both sides with respect to the axial direction A can be a narrow area of the substrate web 02 and / or the width of the printing material guide 249 be present, which is not the working area of the nozzle bars 231 belongs. An entire working area of the at least one nozzle bar 231 is preferred from all workspaces of printheads 221 this at least one nozzle bar 231 and is preferably from all target areas of nozzles of these printheads 221 this at least one nozzle bar 231 composed. Preferably, an entire work area corresponds to a double row 223 of printheads 221 in the transverse direction A seen the working area of the at least one nozzle bar 231 , Each double row 223 of printheads 221 is preferably assigned a printing fluid of a particular color and / or assignable, for example, each one of the colors black, cyan, yellow and magenta or a paint, for example a clearcoat. Preferably, all workspaces form printheads 221 the at least one first printing unit 200 together a working area of this at least one first printing unit 200 ,

Preferably, the at least one nozzle bar 213 in the conveying direction of the printing material guide 249 several rows of nozzles on. Preferably, each printhead 221 a plurality of nozzles, more preferably in a matrix of multiple rows in the transverse direction A and / or more columns preferably in the conveying direction of the printing material guide 249 are arranged, wherein such columns, for example, obliquely to the conveying direction of Bedruckstoffführung 249 are arranged extending, for example, to increase a resolution of a printed image.

The at least one print head 221 works for the production of ink droplets preferably according to the drop-on-demand process, in which ink droplets are generated selectively when needed. Preferably, at least one heating element is used per nozzle, which generates an evaporation of pressurized fluid within a reservoir. Due to the volume displaced by the resulting gas bubble, a quantity of pressurized fluid corresponding essentially to the gas bubble is expelled from the corresponding nozzle, in particular in the form of drops. Due to different current flow through the heating element, the heat development of the heating element and thus the size of the ink droplets are influenced. In this way, color gradations in the resulting print image can be realized without changing a number of drops contributing to the print image (amplitude modulation). Alternatively, at least one piezoelectric element per nozzle is used, which can reduce a volume filled with ink at high speed by a certain proportion when a voltage is applied. This displaces ink which is ejected through a nozzle connected to the volume filled with ink and forms at least one ink droplet. By applying different voltages the piezo element is influenced on the travel of the piezoelectric element and thus the reduction of the volume and thus the size of the ink drops.

In the drop-on-demand process, a droplet deflection after ejection from the corresponding nozzle is not necessary, since it is possible to achieve a target position of the respective ink drop on the moving substrate web 02 with respect to the conveying direction of the printing material guide 249 solely by an emission time of the respective drop of ink and a conveying speed of the printing material guide 249 set. By individually controlling each nozzle, ink drops from the at least one printhead are only at selected times and at selected locations 221 on the substrate web 02 transfer. This is done as a function of the conveying speed and / or conveying means position of the printing material guide 249 , a distance between the respective nozzle and the printing material web 02 as well as the position of the target area of the respective nozzle with respect to the position of the printing material guide viewed in the transport direction 249 , This results in a desired printed image, which is designed as a function of the control of all nozzles. An ejection of ink droplets from the at least one nozzle of the at least one printhead 221 is preferably carried out as a function of the predetermined by the machine control rotational position of the first drive motor. In this case, the desired data of the rotational position of the first drive motor predetermined by the machine controller to the first drive motor are preferably converted in real time into a calculation of data for controlling the nozzles of the at least one print head 221 included. 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 passport-friendly and / or register-compatible printed image.

The high accuracy of the predetermined by the machine control and processed by the first drive motor target data for rotational position of the first drive motor of Bedruckstoffführung 249 allows a very accurate orientation and / or knowledge of the position of the substrate web 02 relative to the nozzles and their target areas. A drop flight time between the nozzles and the printing material web 02 is for example by a teach-in process and / or by the known distance between the nozzles and the printing material web 02 and a known drop speed known. From the position of the printing material guide 249 and / or the first drive of the printing material guide 249 , the conveying speed of the printing material guide 249 and the drop flight time is determined an ideal time to eject a respective drop, so that a passer-sized and / or register-compliant imaging of the substrate web 02 is reached.

A conveyor line, in particular a conveyor line for printing material preferably comprises those devices 241 ; 251 ; 252 ; 253 ; 254 ; 256 ; 257 , Which define a transport path for the substrate, such as rollers, cylinders, guide elements and the like. A conveyor line of the at least one first printing unit 200 extending from one to the other for the substrate 02 provided transport path first pressure point 201 the at least one first printing unit 200 up to one along the for the substrate 02 provided transport path last pressure point 201 the at least one first printing unit 200 extends, is called pressure line 224 the at least one first printing unit 200 designated. The intended transport path is that area of space that the printing material 02 would possibly take over in the event of his presence. The conveying path of the at least one first printing unit 200 preferably includes those facilities 241 ; 251 ; 252 ; 254 ; 256 conveying the transport path through the at least one first printing unit 200 specify, in particular both the intended transport regardless of a presence of the substrate 02 as well as the actual transport route when the substrate is present 02 , The of the pressure line 224 Specified part of the intended transport of the substrate 02 is called a printing section 226 designated the intended transport path.

This preferably has at least one printing unit 200 along the printing section 226 for printing material 02 provided transport path multiple support points 261 on. reference points 261 are preferably characterized by the fact that at support points 261 the intended transport path with respect to its transport direction influenced, for example, is changed. These interpolation points 261 are preferred by respective vanes 241 established. The guiding elements 241 are preferably part of a printing material guide 249 , baffles 241 are preferred such devices that the for the substrate 02 limit and redirect provided transport path and in particular in the case of the presence of the printing substrate 02 preferably at least partially with the printing material 02 stay in contact. As guiding elements 241 come co-rotating and / or positively driven rollers and / or rollers and / or belt conveyors in question, preferred are the guide elements 241 however, as one-piece or multi-part fixed guide elements 241 educated. A deflection angle 227 a guide element 241 is preferably an angle between a first transport direction T1 and a second transport direction T2 , wherein the first transport direction T1 a direction T1 for the substrate 02 provided transport path is in a range in which the intended transport path to the guide element 241 runs up or run up is provided and wherein the second transport direction T2 a direction T2 for the substrate 02 provided transport path is in a range in which the intended transport path, the guide element 241 leaves or to leave. (For example, this is also schematically in 2 explained.) The guide elements 241 are in particular components of the conveyor line. At least in the area of the printing section 226 for printing material 02 provided transport path arranged guide elements 241 are in particular components of the pressure line 224 ,

Preferably, the at least one guide element extends 241 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 parallel to the transverse direction A is oriented. At least one for the printing material is preferred 02 provided transport path contacting part of the cross section of the at least one guide element 241 over the working width of the printing press 01 the same, in particular regardless of the position of the cross section within the working range of the at least one first printing unit 200 and / or regardless of the position of the cross section with respect to the transverse direction A , Further preferred is the entire cross section of the at least one guide element 241 over the working width of the printing press 01 the same, in particular regardless of the position of the cross section within the working range of the at least one first printing unit 200 and / or regardless of the position of the cross section with respect to the transverse direction A ,

There are relatively flat vanes 241 conceivable, for example in the form of slightly curved sheets. However, the guide elements preferably have a substantially cylinder jacket-shaped surface 228 on. Preferably, the cross section of the at least one guide element 241 at least one curved outer boundary, in particular with finite, different from zero radius of curvature. Preferably, this radius of curvature and thus the radius of the guide elements 241 greater than 5 mm, more preferably greater than 10 mm and even more preferably greater than 13 mm. Preferably, this radius of curvature and thus the radius of the guide elements 241 less than 50 mm, more preferably less than 30 mm, and even more preferably less than 18 mm. This curved outer boundary is preferably at least in a region of the cross section, that of the substrate 02 facing transport area is facing. The curvature is especially convex. More preferably, the entire outer boundary of this cross section is curved. Even more preferably, the boundary of this cross section is substantially circular.

This preferably has at least one guide element 241 at least in the range of the working width of the printing press 01 and / or the at least one first printing unit 200 a cylindrical outer surface 228 on, more preferably over an entire extension of the working width of the printing press 02 and even more preferably over the entire extent of the at least one guide element in the transverse direction A , This is preferably at least one guide element 241 as at least one pole 241 formed with a substantially circular cross-section, in particular as a cylindrical rod 241 , The curvature axis of the surface 228 the pole 241 falls, for example, with a central axis 229 the pole 241 together. Minimal, caused for example by wear flattening should not be understood as deviations from the substantially circular cross-section. Preferred is an outer surface 228 of the at least one guide element 241 formed by at least one friction-reducing surface, for example by a coating. For example, this outer surface 228 of the at least one guide element 241 formed by a chrome coating. This outer surface is preferred 228 of the at least one guide element 241 an entire in the range of the working width of the printing press 01 arranged lateral surface 228 preferably as a rod 241 trained guide element 241 , Preference is given to several of the guide elements 241 the same structure, more preferably all the guide elements 241 within the pressure range 224 the at least one first printing unit 200 ,

Preference is given to a plurality of such guide elements 241 in terms of the for the substrate 02 provided transport path arranged in succession, in particular at least three, more preferably at least five and even more preferably at least fourteen, for example twenty-eight. Preferably, the pressure line 224 a plurality of such successively arranged guide elements 241 in particular at least three, more preferably at least five and even more preferably at least fourteen, for example twenty-eight. Due to the relative arrangement of the guide elements 241 the pressure line 224 each other is for each guide element 241 a respective deflection angle 227 established. Preferably, the deflection angle of the guide elements 241 the pressure line 224 are substantially the same and at most in the range of a first and / or a last guide element 241 the pressure line 224 of those of the other vanes 241 the pressure line 224 from. The deflection angle 227 the guiding elements 241 the printing section 224 stands with the number of print head rows 221 along the pressure line 224 , the ejection directions of the printheads 221 along the pressure line 224 and the number of guide elements 241 along the pressure line 224 in context.

If in the foregoing and / or below of guiding elements 241 is mentioned, are preferred at least and more preferably exclusively those guide elements 241 the pressure line 224 meant. Preferably, the deflection angle 227 of the at least one guide element 241 and more preferably several and even more preferably all the guide elements 241 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). Preferably, the deflection angle 227 of the at least one guide element 241 and more preferably several and even more preferably all the guide elements 241 at most 10 degrees (ten degrees), more preferably at most 5 degrees (five degrees) and even more preferably at most 2.5 degrees (two point five degrees).

The guiding elements are preferred 241 the pressure line 224 along the pressure line 224 arranged in the form of a bow, in particular a circular arc. The guiding elements are preferred 241 immovable or fixed in each case at least one holding device 271 arranged, in particular with respect to rotational movements about a respective guide element 241 cutting axis of rotation immovable and / or fixed. The respective at least one holding device 271 is preferably deactivated in its holding function, for example by releasing at least one closure device 272 , in particular at least one screw 272 , For example, the at least one closure device 272 designed as a quick-closing device and has at least one eccentric lever. For example, the at least one holding device 271 at least one recess through which the corresponding guide element 241 protrudes and has this holding device 271 at least one bore, which ends in the at least one Ausnhemung and into which a screw is screwed, the end of which with the corresponding guide element 241 is in contact with the corresponding guide element 241 to fix. Due to the preferred symmetry, in particular radial symmetry or even rotational symmetry of the guide elements 241 is it possible to use the appropriate vanes 241 to release from its fixation, twisted by a small angle again in the fixture 271 to arrange and fix again and thereby another, preferably still unused area of the surface 228 , in particular lateral surface 228 of the corresponding guide element 241 for contact with the substrate 02 provided. Preferably, this angle is an integer fraction of a full angle, ie 360 ° / n, where n is a natural number. For example, the guide elements are rotationally symmetrical, for example cylindrical. To facilitate the correct positioning is then preferred at least one mark on the guide element and / or on the holding device 271 provided an indication of the relative position of the guide element 241 and the holding device 271 gives. For example, the guide elements 241 at least in their end regions no rotational symmetry but only a radial symmetry, for example by a cross section with an outer contour in the form of a regular polygon. In this way, certain mounting positions of the guide elements 241 given and wear a sufficiently large but not too large manual rotation can be facilitated, for example, a possible use of the scope of the guide elements 241 optimally exploited in the course of their use.

At least one support element is preferred 273 ; 274 arranged. 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 the pressure line 224 and even more preferred for all vanes 241 the pressure line 224 , The at least one support element 273 is for example as at least one lateral support element 273 educated. The at least one support element 273 ; 274 is preferred as at least one support frame 276 or as part of at least one support frame 276 formed, for example, at least two lateral support elements 273 in which further preferably directly and / or via the holding devices 271 in particular a plurality of guide elements 241 are attached. For example, the at least one support frame 276 at least two of the guiding elements 241 different trusses 277 on, at least in the transverse direction A extend and for a constant relative position of the lateral support members 273 to care. In principle, this function can be derived from the guiding elements 241 be taken over, in which case it must be ensured that when loosening all the guide elements 241 from the supporting elements 273 ; 274 the lateral support elements 273 are no longer fixed to each other. For stability reasons, arranging at least one traverse 277 prefers. The at least one lateral support element 273 preferably has per guide element 241 at least one circulation area 278 on, on which the respective guide element 241 on the lateral support element 273 rests on or at least with the lateral support element 273 in contact. The at least one at least edition area 278 is for example part of the respective holding device 271 or preferably acts at least with the respective holding device 271 together.

At least one inner support element is preferred 274 arranged. The at least one inner support element 274 preferably serves at least one or more or preferably all the guide elements 241 to protect against unwanted or at least against unintentionally high deflection. For large working widths of the printing press 01 could otherwise with non-supported vanes 241 whose middle area sag downwards. The at least one inner support element 274 preferably has per guide element 241 at least one circulation area 278 on, on which the respective guide element 241 on the inner support element 274 rests on or at least with the inner support element 274 in contact. The at least one support area 278 is preferred as a concave support area 278 formed, more preferably with a concave surface which corresponds to a partial surface of a cylinder jacket and has the shape of a circular segment in cross section. Preferably, an internal angle of this circular emitter is greater than 180 °, for example about 270 °. The corresponding guide elements 241 is then for assembly purposes, for example in the transverse direction A in the inner support element 274 insertable. As a result, a stable arrangement can be achieved. Further preferred is an inner radius of the support area 278 to the radius of the outer surface 228 of the at least one guide element 241 adapted, in particular identical. Alternatively, other shapes for this cross section of the support area 278 be provided, for example, consisting of several straight sections.

As a wear of the vanes 241 essentially only in the region of a wrap is to be expected, the angular range of the deflection angle 227 corresponds, there is the possibility of multiple reuse of each guide element 241 if this is re-installed when worn by an angle, for example, is slightly larger than the deflection angle 227 , As a result, even after multiple wear in the cross section of the guide element 241 There are still many places to be present where an outermost point of the surface 228 still corresponds to the original outer circle of the cross section. These locations are preferably used to support the guide element 241 opposite the at least one inner support element 274 , In this way, even with partially worn guide element 241 ensures that a deflection is effectively reduced or even prevented. The wider the working width of the printing press, the more inner guide elements 241 can be arranged so that a maximum distance between each, the guide element 241 supporting positions can be kept low, no matter what the dimensions of the working width of the printing press 01 accepts. A distance between adjacent support elements 273 ; 274 is preferably less than two meters, more preferably less than one and one half meters, and even more preferably less than one meter.

Preference is given to each guide element 241 a printhead series 222 assigned. Alternatively, each guiding element could also be used 241 several printhead rows 222 be assigned, for example, when the guide elements 241 not as rods, but as flat guide elements would be formed .. Preferably, each Druckkopfreihe 222 a guiding element 241 assigned. Each nozzle of the printheads 221 preferably has a respective ejection direction. Preferably, all nozzles of a same printhead 221 a same ejection direction. Preferably, at least one and more preferably each printhead 221 the at least one first printing unit 200 at least one nozzle, whose imaginary extension in the ejection direction arranged in print position printhead 221 and when arranged in working position guide 241 a guiding element 241 cuts, in particular the respective printhead 221 associated guide element 241 , More preferably, at least one, and more preferably, each printhead 221 the at least one first printing unit 200 a plurality of nozzles, whose imaginary extension in the ejection direction with arranged in printing position printhead 221 and when arranged in working position guide 241 a guiding element 241 cuts, in particular the respective printhead 221 associated guide element 241 , More preferably, at least one, and more preferably, each printhead 221 the at least one first printing unit 200 only those nozzles on whose imaginary extension in ejection direction arranged in print position printhead 221 and when arranged in working position guide 241 a guiding element 241 cuts, in particular the respective printhead 221 associated guide element 241 ,

A shortest distance between a respective nozzle of a respective printhead arranged in its printing position 221 on the one hand and for the substrate 02 provided transport path or the nearest arranged in its working position guide element 241 On the other hand, it 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 printhead arranged in its printing position 221 on the one hand and the substrate 02 On the other hand, it 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 over the thickness of the substrate 02 related to each other.

At least one shielding device is preferred 292 arranged. The at least one shielding device 292 is preferably used to parts of the print heads, for example, their supply facilities for electronics and / or pressure fluid and / or their brackets and / or parts of the nozzle bars 231 on the one hand against the for the substrate 02 provided transport path and in particular its printing section 226 and / or against one of the nozzles of the printheads 221 shielding the area covered. In this way, pressurized fluid is prevented from soiling on such parts of the printheads 221 can deposit, which could be affected, for example in the form of fine ink mist. The at least one shielding device 292 preferably has per printhead 221 at least one opening through which the respective print head 221 or at least partially projecting through its nozzles and at arranged in its printing position printhead 221 also protrude through. The apertures are defined by the print heads located in their print positions 221 preferably substantially closed. The at least one shielding device 292 is, for example, as at least one shielding surface 292 designed, in particular as at least one shielding plate 292 , Preferably, the at least one shielding device 292 stationary relative to a frame 283 the at least one first printing unit 200 arranged, in particular independent of the arrangement of the at least one print head 221 in its printing position or in its parking position and / or independent 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 agent is preferred 251 in terms of the for the substrate 02 provided transport path in front of the first guide element 241 the pressure line 224 arranged. This at least a first rotatable Bahnleitmittel 251 is preferred as a first motor-driven web-guiding means 251 and / or a first web guide roll 251 designed, in particular a first motor-driven web guide roll 251 , For example, the at least one first web guide roll 251 its own drive motor and / or is the at least one first web guide roll 251 Part of at least one system for controlling a web tension of a web-shaped substrate 02 , Alternatively or additionally, at least one further web guide roll 252 as a motor-driven web guide roller 252 formed, with respect to the for the substrate 02 provided transport path directly or with the interposition of other web guide rollers 253 and / or web guiding means 253 the first web guide roll 251 upstream.

At least one rotatable second web-guiding means is preferred 254 in terms of the for the substrate 02 provided transport path after the last guide element 241 the pressure line 224 arranged. This at least one second rotatable Bahnleitmittel 254 is preferred as a second motor-driven web-guiding means 254 and / or a second web guide roll 254 designed, in particular a second motor-driven web guide roll 254 , For example, the at least one second web guide roll 254 a separate drive motor and / or is the at least one second web guide roll 254 Part of the at least one system for controlling the web tension of the web-shaped substrate 02 , Alternatively or additionally, at least one further web guide roll 256 as a motor-driven web guide roller 256 formed, with respect to the for the substrate 02 provided transport path directly or with the interposition of other web guide rollers 257 and / or web guiding means 257 the second web guide roll 254 is downstream. The web guiding means 251 ; 253 ; 254 ; 257 and / or web guide rollers 251 ; 252 ; 253 ; 254 ; 256 ; 257 are preferably part of the printing material guide 249 ,

Preferably, the printing section runs 226 for the substrate 02 monotonously increasing the planned transport route. A first guide element is preferred 241 the pressure line 224 the lowest arranged of all vanes 241 the pressure line 224 , Preference is given to a last guide element 241 the pressure line 224 the highest arranged guide 241 the pressure line 224 ,

This preferably has at least one printing unit 200 at least one and more preferably exactly one pivoting device 279 on. The at least one swivel device 279 is preferably at least one, more preferably several and even more preferably all the guide elements 241 the pressure line 224 assigned.

In particular by means of the at least one pivoting device 279 are preferably a plurality of guide elements 241 and more preferably all the guide elements 241 the pressure line 224 around at least one common pivot axis 281 ; 282 pivotally arranged, in particular along a respective individual and / or each different length pivoting path. In this case, this is at least a common pivot axis 281 ; 282 preferably at least one pivot axis 281 ; 282 the swivel device 279 the at least one printing unit 200 , For example, at least one support element 273 ; 274 , in particular at least one lateral support element 273 and / or at least one inner support element 274 together with the guiding elements 241 and / or at least one support frame 276 around the at least one common pivot axis 281 ; 282 pivotally arranged, in particular along a respective pivoting path. Preferably, the at least one support frame 276 around the at least one common pivot axis 281 ; 282 arranged pivotally.

Each around the at least one common pivot axis 281 ; 282 swiveling guide element 241 is preferably associated with 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 arranged in its working position guide element 241 from a next this guide element, arranged in its printing position printhead 221 a smallest distance of at most 5 mm, more preferably at most 3.0 mm and even more preferably at most 2.0 mm, and / or that the guide element arranged in its working position 241 from that for the substrate 02 in the printing operation provided transport path is affected. The maintenance position of each baffle 241 is preferably characterized in that the guide element 241 in a maintenance state of the at least one first printing unit 200 located in its maintenance position and / or that arranged in its maintenance position guide element 241 from a next this guide element, arranged in its printing position printhead 221 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 arranged in its maintenance position 241 from that for the substrate 02 spaced in the printing operation transport path is spaced.

The at least one common pivot axis 281 ; 282 the at least one pivoting device 279 is preferably arranged further above, as the working position and / or the maintenance position of the transport direction of the printing substrate 02 seen first guiding element 241 the pressure line 224 , The at least one common pivot axis 281 ; 282 is preferably arranged further above, as the working position and / or the maintenance position of each in the transport direction of the printing material 02 seen a middle third of the pressure range 224 associated guide element 241 the pressure line 224 , A vertical component of a distance between the at least one first guide element is preferred 241 the pressure line 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 the pressure line 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 independently of the arrangement of the at least one support frame 276 in its working position or its maintenance position.

In a first embodiment of the pivoting device 279 has the swivel device 279 exactly one common pivot axis 281 on. In this first embodiment of the pivoting device 279 this is at least one support element 273 ; 274 and in particular the at least one support frame 276 around a single common pivot axis 281 pivotable, in particular relative to a frame 283 the at least one first printing unit 200 , In this first embodiment, the at least one guide element is preferred 241 the pressure line 224 around this single common pivot axis 281 pivotable, in particular relative to the frame 283 the at least one first printing unit 200 , Further preferred in this first embodiment are several and even more preferably all the guide elements 241 the pressure line 224 around this single common pivot axis 281 pivotable, in particular relative to the frame 283 the at least one first printing unit 200 ,

In a second embodiment of the pivoting device 279 has the swivel device 279 at least two and preferably exactly two common pivot axes 281 ; 282 and at least one intermediate link 284 on. The at least one intermediate link 284 is preferably about a first common pivot axis 281 relative to the frame 283 the at least one first printing unit 200 pivotable. In this second embodiment of the pivoting device 279 this is at least one support element 273 ; 274 and in particular the at least one support frame 276 around a second common pivot axis 282 pivotable, in particular relative to the intermediate member 284 , In particular, then the second common pivot axis 282 preferably itself not stationary, but movable, in particular around the first common pivot axis 281 pivotable. In this second embodiment, the at least one guide element is preferred 241 the pressure line 224 around this second common pivot axis 282 pivotable, in particular relative to the intermediate member 284 and / or relative to the frame 283 , Further preferred in this second embodiment are several and even more preferably all the guide elements 241 the pressure line 224 around this second common pivot axis 282 pivotable, in particular relative to the intermediate member 284 and / or relative to the frame 283 ,

Preferably, the at least one pivoting device 279 at least one particular common pivot drive 286 on. The at least one rotary actuator 286 has, for example, at least one linear drive 286 on. The at least one rotary actuator 286 , especially linear actuator 286 preferably engages with at least a first connecting element on the frame 283 to, for example, directly or with the interposition of at least one other component. The at least one rotary actuator 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 traverse 277 and / or the support frame 276 to, for example, directly or with the interposition of at least one other component. As a rotary actuator 286 is preferably at least one fluid piston arranged, for example, at least one hydraulic piston and / or at least one pneumatic piston and / or more preferably at least one electric motor arranged, for example, cooperates with at least one threaded spindle and / or at least one rack and / or at least one gear. As connecting elements and / or further component, for example, at least one joint and / or at least one spindle and / or at least one spindle nut or the like is arranged. The at least one pivot drive is preferably used to pivot a movement of the at least one support element 273 ; 274 and / or the at least one traverse 277 and / or the at least one support frame 276 and / or in particular the guide elements 241 to effect.

For example, in connection with the first embodiment of the pivoting device 279 is as part of at least one pivoting device 279 preferably at least one with respect to its linear axis of motion flexible, in particular pivotable linear guide arranged along which, for example, at least one sliding element is guided or more preferably at least one relative to the frame 283 includes pivotable piston. For example, the piston engages at a connection point of the at least one support element 273 ; 274 and / or the at least one traverse 277 and / or the at least one support frame 276 at, wherein the connection point preferably around the first common pivot axis 281 is pivotable. In a pivoting movement of the at least one support element 273 ; 274 and / or the at least one traverse 277 and / or the at least one support frame 276 and / or the at least one guiding element 241 Then also changes an orientation of the linear movement axis of the linear guide.

For example, in connection with the second embodiment of the pivoting device 279 is as part of at least one pivoting device 279 preferably at least one with respect to their linear axis of movement preferably constant linear guide 287 arranged along which preferably at least one sliding element is guided. The at least one sliding element is preferably a connection point 288 of the at least one support element 273 ; 274 and / or the at least one traverse 277 and / or the at least one support frame 276 assigned and ensures that this connection point 288 traverses a substantially linear path while the vanes 241 and / or the at least one support element 273 ; 274 and / or the at least one traverse 277 and / or the at least one support frame 276 be moved between the working position and the maintenance position. By arrangement of the two common pivot axes 281 ; 282 is a linear guide of this junction 288 of the at least one support element 273 ; 274 and / or the at least one traverse 277 and / or the at least one support frame 276 allows.

Preferably independent of the execution of the at least one pivot drive 286 and / or regardless of the number of common pivot axes 281 ; 282 has the at least one pivoting device 279 preferably at least one fixing element, more preferably at least two fixing elements and even more preferably at least four fixing elements. The at least one fixing element preferably serves to fix the guide elements 241 and / or the at least one support element 273 ; 274 and / or the at least one traverse 277 and / or in particular of the at least one support frame 276 is a respective working position. Preference is given to several and more preferably all the guide elements 241 the pressure line 224 can be fixed together in their respective working position by means of the at least one fixing element. For example, these are several or all guiding elements 241 the pressure line 224 stationary relative to the at least one support frame 276 arranged and is the at least one support frame 276 by means of the at least one fixing element fixed relative to the frame 283 the at least one first printing unit 200 fixable and / or fixed. For example, the at least one support frame 276 by means of the at least one pivot drive 286 can be arranged exactly in its working position and serves the at least one fixation devices only its fixation. Preferably, the at least one support frame 276 by means of the at least one pivot drive 286 can be arranged substantially in its working position and serves the at least one fixing a precise positioning of the at least one support frame 276 and the fixation of the at least one support frame.

The at least one fixing device has, for example, at least one stop and at least one contact element and at least one force device embodied, for example, as at least one pulling device and / or pressing device. The at least one force device preferably serves to pull the at least one contact element against the at least one stop and / or to squeeze. For example, at least one wedge is arranged per fixing element, which converts by its inclined surface a direction of a linear movement and / or force in a respect to their direction with at least one orthogonal component oriented linear motion and / or force. With a suitable choice of the angle, a self-locking is preferably achieved. For example, the at least one stop and the at least one force device on the frame 283 the at least one first printing unit 200 arranged and that is at least one contact element on the at least one support frame 276 arranged.

In particular, a reproducible and / or precisely adjustable position of the at least one support element is achieved by the at least one fixing device 273 ; 274 and / or the at least one support frame 276 and / or the guide elements 241 the pressure line 224 relative to the frame 283 the at least one first printing unit 200 allows. By a preferably reproducible and / or precisely adjustable position of the print heads 221 relative to the frame 283 the at least one first printing unit 200 is thus a reproducible and / or precisely adjustable position of the printheads 221 relative to the guide elements 241 reach the pressure line.

A main conveying direction B is preferred by a straight-line connection between one on the substrate 02 provided transport path related first guide element 241 the pressure line 224 and one on the substrate 02 provided transport path based last guide element 241 the pressure line 224 established. The main conveying direction B is preferred by a straight-line connection between one on the printing section 226 for printing material 02 provided transport path related first guide element 241 and one on the printing section 226 for printing material 02 provided transport path based last guide element 241 established. The main conveying direction B points from that to the substrate 02 provided transport path related first guide element 241 the pressure line 224 to the on the substrate 02 provided transport path based last guide element 241 the pressure line 224 , The main conveying direction B is preferably orthogonal to the transverse direction A oriented.

For example, the orientation of the main conveying direction B when arranged in their working position vanes 241 and / or with in its working position arranged support frame 276 regardless of the orientation of the main conveying direction B when arranged in their maintenance position guide elements 241 and / or at in its maintenance position arranged support frame 276 , However, the orientation of the main conveying direction preferably has B when arranged in their working position vanes 241 and / or with in its working position arranged support frame 276 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 when arranged in their maintenance position guide elements 241 and / or at in its maintenance position arranged support frame 276 on.

Preferably, the main conveying direction B when arranged in their working position vanes 241 and / or at its working position arranged support frame 276 at least one vertically upwardly facing component and at least one horizontal component. The main conveying direction is preferred B when arranged in their working position vanes 241 and / or at its working position arranged support frame 276 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 is preferred B when arranged in their working position vanes 241 and / or at its working position arranged support frame 276 at an angle of at most 70 °, more preferably at most 55 ° and even more preferably at most 40 ° aligned to a horizontal plane. In an alternative embodiment, the main conveying direction B extend substantially horizontally, ie an angle of at most 5 ° to a horizontal plane.

Preferably, the main conveying direction B when arranged in their maintenance position guide elements 241 and / or at in its maintenance position arranged support frame 276 at least one vertically upwardly facing component, and more preferably exclusively a vertically upwardly facing component. The main conveying direction is preferred B when arranged in their maintenance position guide elements 241 and / or at in its maintenance position arranged support frame 276 at an angle of at most 30 °, more preferably at most 20 ° and even more preferably at most 10 ° to a vertical direction.

To the guiding elements 241 the pressure line 224 to transfer from their working position to their maintenance position and / or to the at least one support frame 276 to transfer from its working position to its maintenance position, it is preferred that at least one pivot drive 286 activated. The guiding elements are preferred 241 and / or becomes the at least one support frame 276 pivoted from the respective working position in the respective maintenance position, more preferably around the at least one first common pivot axis 281 and / or around the at least one second common pivot axis 282 , The pivoting movement points preferably at least one downwardly facing component. The pivoting movement is preferably carried out with a pivoting angle of at least 10 °, more preferably at least 20 ° and even more preferably at least 30 °.

To the guiding elements 241 the pressure line 224 to transfer from their maintenance position to their working position and / or to the at least one support frame 276 to transfer from its maintenance position to its working position, it is preferred that at least one pivot drive 286 activated. The guiding elements are preferred 241 and / or becomes the at least one support frame 276 pivoted from the respective maintenance position in the respective working position, more preferably around the at least one first common pivot axis 281 and / or around the at least one second common pivot axis 282 , The pivoting movement preferably has at least one upwardly pointing component. The pivoting movement is preferably carried out with a pivoting angle of at least 10 °, more preferably at least 20 ° and even more preferably at least 30 °.

Due to the joint pivoting of the guide elements 241 the pressure line 224 and / or the pivotability of the at least one support frame 276 preferably results in a possibility for 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 the pressure line 224 on the other hand. Due to the pivoting movement, this magnification falls on different of these guide elements 241 different sized. Due to the joint pivoting of the guide elements 241 the pressure line 224 and / or the pivotability of the at least one support frame 276 This results in a maintenance room 291 between the nozzles of the printheads 221 and / or the at least one shielding device 292 on the one hand and the guide elements 241 on the other hand. This maintenance room 291 is accessible, for example, to operating personnel. This maintenance room 291 allows, for example, a maintenance and / or cleaning of the guide elements 241 the pressure line 224 , in particular independent of the working width of the printing press 01 , This maintenance room 291 allows, for example, a maintenance and / or cleaning of the at least one shielding device 292 , in particular independent of the working width of the printing press 01 ,

This preferably has at least one first printing unit 200 at least a first movable stand aid 293 , in particular floor space 293 on. The at least one first movable stand aid 293 is preferably locatable at least in an insertion position and is preferably positionable at least in a standby position. When arranged in their use position stand help 293 is the stand help 293 preferably within the maintenance room 291 arranged and / or allows at least one operator access to the maintenance room 291 , Preferably, the at least one first movable standing surface 293 arranged movably along a provision path between its at least one ready position and its at least one insertion position, for example pivotally and / or linearly movable.

For example, the at least one provision path of the at least one stand aid intersect 293 on the one hand and the respective pivoting path of at least one or more guide elements 241 and / or the at least one support element 273 ; 274 and / or the at least one support frame 276 on the other hand. Preference is therefore initially the at least one support frame 276 and / or the guide elements 241 moved from their respective working position in their respective maintenance position, in particular pivoted, preferably, the at least one first auxiliary stand 293 is moved from its standby position to its use position. After an insert on the at least one stand aid 293 is completed, is preferred first, the at least one first aid 293 moved from its use position to its standby position, before the at least one support frame 276 and / or the guide elements 241 moved from their respective maintenance position in their respective working position, in particular is pivoted. Alternatively or in addition to a swiveling standing aid 293 For example, is still a along at least one guide cam movable stand help 293 arranged, which preferably consists of several common or separately movable individual sections.

As the guiding elements 241 in their maintenance position of the for printing material 02 provided transport path are arranged away, in particular further than in their working position, the substrate must 02 be handled accordingly, if he is already in the at least one first printing unit 200 located.

In a preferred first embodiment of a handling of the printing material 02 Preferably carried out a separation of the printing material 02 , At least one first web fixing device is preferred 294 and a two web fixing devices 296 arranged. For example, the at least one first web fixing device 294 and / or the at least one second web fixing device 296 designed as a suction device and preferably has at least one acted upon by a negative pressure opening. Alternatively, the Bahnfixiereinrichtungen 294 ; 296 also be designed for example as clamping devices. The at least one first web fixing device 294 is preferred on the frame 283 the at least one first printing unit 200 arranged. The at least one second web fixing device 296 is preferred together with the guide elements 241 movably arranged. For example, the at least one second web fixing device 296 on the at least one support frame 276 arranged. First, the at least one first web fixing device is preferred 294 and / or the at least one second web fixing device 296 activates and thereby keeps the printing material web 02 , In particular, the at least one first web fixing device holds 294 preferably a first section of the printing material web 02 from one of the printheads 221 facing side of the substrate web 02 out. Preferably, the at least one second web fixing device holds 296 preferably a second section of the printing material web 02 for example, from one of the printheads 221 facing away and the guide elements 241 facing side of the substrate web 02 out. The first section is preferred with respect to the transport direction of the printing substrate 02 arranged further forward than the second section.

For example, a separation of the printing substrate web is preferably carried out thereafter 02 , in particular between the at least one first web fixing device 294 on the one hand and the at least one second web fixing device 296 on the other hand. Thereafter, the guide elements are preferred 241 and / or the at least one support frame 276 around the at least one common pivot axis 281 ; 282 pivoted and is preferred by the second Bahnfixiereinrichtung 296 held part of the substrate web 02 with a swivel. This creates the maintenance room 291 whose bottom surface is preferably freely accessible. After completion of appropriate maintenance, for example on the at least one shielding device 292 , become the guiding elements 241 moved back to its working position, in particular pivoted. In this case, the second web fixing device is preferred 296 together with the part of the printing material she held 02 pivoted back to the starting position. As a result, the two ends of the printing material web 02 again arranged in close proximity to each other. These two ends of the printing material web are preferred 02 then reconnected, for example by gluing. Subsequently, a transport process of the printing material 02 and / or a previously interrupted printing operation.

In a second embodiment of a handling of the printing material 02 preferably no separation of the printing material 02 but a change in the position of the printing substrate 02 , At least one deflection device is preferred for this purpose 297 arranged, which is further preferably movable. For example, the at least one deflection device 297 formed as at least one rod or roller extending in the transverse direction A extends. For example, the at least one deflection device 297 at least in a printing operation on the printheads 221 assigned side of the substrate 02 and / or the intended transport path arranged. For example, the at least one deflection device 297 along a travel movable, which intersects the intended transport path. The at least one deflection device 297 is, for example, together with the at least one support frame 276 movable, in particular pivotable and preferably on the at least one support frame 276 arranged. More preferably, the at least one deflecting device 276 independent of the guiding elements 241 and / or the support frame 276 movable, for example by means of its own drive and / or along its own leadership that runs, for example, linear, in particular horizontal. As a result, by pivoting the at least one support frame 276 First, a distance between the guide elements 241 and the printing material are generated, whereby, for example, the guide elements 241 are accessible for a maintenance operation, and can in particular thereafter by a movement of the at least one deflecting device 297 the printing material web 02 from the printheads 221 and / or of the at least one shielding device 292 are removed, for example, the at least one shielding device 292 to clean on the intended transport route side. In order to be able to reprint, the corresponding steps are preferably reversed in reverse order.

At least within the at least one printing unit is preferred 200 and more preferably in other areas of the printing press 01 at least temporarily at least one along at least one Einziehwegs movable retraction means for drawing a printing material web 02 and / or along at least one intended transport path of the printing material web 02 movable retraction means for drawing in a printing material web 02 arranged and / or can be arranged. Preferably, at least parts of the at least one pull-in path and, more preferably, the complete pull-in path to the transverse direction A relative to each target area of each nozzle of each printhead 221 the at least one first printing unit 200 a distance of at least 2 cm, more preferably at least 4 cm, even more preferably at least 6 cm and even more preferably at least 8 cm. Preferably, at least parts of the drawing-in means and more preferably the complete drawing-in means have the transverse direction A relative to each target area of each nozzle of each printhead 221 the at least one first printing unit 200 a distance of at least 2 cm, more preferably at least 4 cm, even more preferably at least 6 cm and even more preferably at least 8 cm. In particular, the preferred at least one Einziehweg and / or the at least one retraction means with respect to the axial direction A outside the working width of the printing press 01 arranged. Preferably, the Einziehweg in the region of the printing section 226 for printing material 02 provided transport path curved in exactly one direction.

At least one printing material web is preferred 02 via at least one further preferably designed as at least one Einziehspitze connecting element connected to the at least one retraction and / or connectable, in particular independent of the formation of the at least one retraction means as Einziehband and / or Einziehkette and / or endless retraction and / or finite retraction. The draw-in agent of any printing material is preferred 02 different.

Preferably, the at least one pulling-in means is designed as at least one endless pulling-in means, for example as at least one endless pulling-in tape. The at least one retraction means is alternatively formed as at least one finite retraction means, for example as a finite pull-in tape and / or as a finite pull-in chain. Preferably, at least one retraction drive is arranged, by means of which the at least one retraction means is arranged to be movable along the at least one retraction path. For example, in the case of an endless retracting means, it is sufficient if exactly such a retraction drive is arranged. Alternatively, the at least one retraction means is finally formed. Then at least one Einziehspeicher is preferably arranged, in which the at least one retraction means is at least temporarily arranged, in particular, as long as it is not used to a printing material web 02 collect. In an alternative embodiment, the at least one retraction means is designed as at least one finite pull-in chain. In the preferred case of the at least one endless drawing-in means, it is preferred for the at least one drawing-in means to draw in a printing material web 02 along the intended transport path of the printing material web 02 in particular permanently along its at least one pull-in path within the printing press 01 arranged.

At least one Einziehleitelement is preferably arranged, by means of which at least one Einziehweg the at least one retraction means can be fixed and / or fixed. The at least one Einziehleitelement is formed for example as at least one deflection roller. The at least one Einziehleitelement is alternatively formed as at least one chain rail. Preferably, the at least one Einziehleitelement is designed as at least one rotatable Einziehleitelement, for example as at least one deflection roller. In particular, a chain rail can also have switches for the realization of different Einziehwege.

In a regular printing operation, all printheads are 221 fixedly arranged. This ensures a permanent passport-oriented and / or register-oriented alignment of all nozzles. There are different situations imaginable in which a movement of the printheads 221 necessary is. A first such situation is a flying roll change or substrate change or generally a roll change with gluing process or a printing material change with gluing process. This is a printing material web 02 by means of an adhesive strip with another printing material web 02 connected. This results in a connection point that covers the entire transport path of the printing material web 02 has to go through. This joint has a thickness, ie a smallest dimension, which is greater than a thickness of the printing material web 02 , Depending on the type of bond, the joint is as thick as the substrate web 02 and the adhesive strip together or even as thick as two substrates 02 and the tape together. This can cause difficulties when the joint is the space between the nozzles of the printheads 221 and the guiding elements 241 the pressure line 224 happens.

At least the printheads 221 and preferably the at least one nozzle bar 231 Overall, therefore, in at least one direction relative to the management level of the first Bedruckstoffführung 249 movable, in particular from this abstellbar, more preferably orthogonal to a the printhead 221 next surface of the substrate 02 provided transport route. In particular, the printheads are preferred 221 and more preferably, the at least one nozzle bar 231 in at least one direction relative to the respective next guide element 241 movable, in particular off this. In this way, the distance can be sufficiently increased, but must be subsequently reduced accordingly again. A second such situation results, for example, in a maintenance and / or cleaning at least one of the printheads 221 , The printheads 221 are preferably individually on the at least one nozzle bar 231 attached and individually from the at least one nozzle bar 231 solvable. This allows individual printheads 221 serviced and / or cleaned and / or replaced.

At least one cleaning device, in particular at least one nozzle cleaning device, 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, is preferably arranged. Preferably, the print heads 221 so far from the arranged especially in their working position guide elements 241 of the pressure range 224 arranged that the at least one cleaning device, in particular nozzle cleaning device in a resulting cleaning gap 289 fits. This is preferably at least one cleaning device in the transverse direction A movably arranged and further preferably in the transverse direction A a dimension smaller than the working width of the printing press. Preferably, the at least one cleaning device in the case in which its associated printheads 221 are arranged in their printing position, with respect to the transverse direction A arranged outside the working width of the printing press. Each printhead row is preferred 222 or each double row 223 of printheads 221 assigned its own cleaning device.

Preferably, at least one sensor designed as a first print image sensor is arranged, more preferably at one point along the transport path of the printing material web 02 after the last printing point of the at least one first printing unit 200 , The at least one first print image sensor is designed, for example, as a first line scan camera or as a first area scan camera. The at least one first print image sensor is designed, for example, as at least one CCD sensor and / or as at least one CMOS sensor. By means of this at least one first print image sensor and a corresponding evaluation unit, for example, the higher-level machine control, it is preferable to control all in the conveying direction of the first printing material guide 249 one behind the other and / or acting printheads 221 and / or double rows 223 of printheads 221 the at least first printing unit 200 monitored and regulated. In a first embodiment of the at least one print image sensor, only a first print image sensor is arranged, whose sensor field covers the entire width of the transport path of the printing material web 02 includes. In a second embodiment of the at least one print image sensor, only a first print image sensor is arranged, which is in the direction A orthogonal to the direction of the transport path of the printing substrate 02 is designed to be movable. In a third embodiment of the at least one print image sensor, a plurality of print image sensors are arranged, whose respective sensor fields each comprise different regions of the transport path of the printing material web 02 include. Preferably, these areas are in the direction A orthogonal to the direction of the transport path of the printing substrate 02 arranged offset from one another. Preferably, an entirety of the sensor fields of the plurality of print image sensors comprises a total width of the transport path of the printing material web 02 ,

A layer of pixels formed by drops of ink emerging from each first printhead 221 are preferably compared with a layer of pixels formed by drops of ink, each from a second, in the conveying direction of the first Bedruckstoffführung 249 after the first printhead 221 lying printhead 221 come. This is preferably done independently of whether these each first and second, in the conveying direction of the first Bedruckstoffführung 249 one behind the other and / or acting printheads 221 process the same or different pressure fluids. It will be a vote of the layers of different printheads 221 monitored printed images. For the same inks, register-based joining of partial images is monitored. For different inks, a register or color register is monitored. A quality control of the printed image is preferably also carried out with the measured values of the at least one printed image sensor.

Preference is given to printing material 02 provided transport path after the at least one first printing unit 200 at least a first dryer 301 arranged, which is designed as a drying section area of the substrate 02 provided transport path through an area of action of the at least one dryer 301 established. After passing the at least one first printing unit 200 the transport path of the printing material passes through 02 and in particular the printing material web 02 prefers the at least one first dryer 301 to dry the applied printing fluid. Preferably, the at least one first dryer 301 Part of a dryer unit 300 ,

After the printing material web 02 the at least one first printing unit 200 has happened, the printing substrate 02 transported further along their transport path and preferably the at least one first dryer 301 the at least one dryer unit 300 fed. Preferably, a printing material path comprising one or more guiding and / or conveying means is downstream of the last printing location 201 formed, that the first, in the at least one first printing unit 200 printed side of the substrate web 02 after passing the last pressure point 201 up to an area of action of the at least one first dryer 301 with no part of the roll printing press 01 , comes into contact with no guidance and / or funding. Preferably, the second, in particular of the first printing unit is 200 not printed, side of the substrate 02 after passing the last pressure point 201 up to the area of action of the at least one first dryer 301 with at least one web guiding means 257 , For example, at least one web guide roll 254 ; 256 ; 257 ,

Preferably, one for the substrate 02 provided transport direction in at least half and more preferably in at least 75% of the entire drying section at least one vertical, preferably downwardly facing component which is greater than any optional horizontal component of this transport direction. Preference is given to a motor-driven web guide roller 254 arranged by the substrate 02 and / or the intended transport path is wrapped with a wrap angle, which 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 roll 254 is preferred along the substrate 02 and / or the proposed transport path to the last guide elements of the pressure line 224 and in front of the area of action of the at least one dryer 301 arranged.

The at least one first dryer 301 is preferred as an infrared radiation dryer 301 educated. The at least one first dryer 301 preferably has at least one radiation source, which is preferably designed as an infrared radiation source. A radiation source, preferably an infrared radiation source, is a device by means of which specifically electrical energy is converted into radiation, preferably infrared radiation, and / or is convertible to the printing material web 02 is directed and / or judged. The at least one radiation source preferably has a defined area of action. In particular, the area of action of a radiation source is in each case the area which contains all the points which, in particular, can be connected in a straight line directly or via reflectors to the radiation source without interruption. The area of action of the at least one first dryer 301 is made up of the areas of action of all the radiation sources of the at least one first dryer 301 together. The area of action of the at least one first dryer 301 preferably has from the at least one radiation source to one of the at least one radiation source nearest part of the transport path of the printing material web 02 , By at least one vent opening air is in the interior of the at least one first dryer 301 initiated. Inside the first dryer 301 becomes from the printing material web by the infrared radiation 02 removed to remove water and / or solvent of the printing inks and absorbed by the introduced air. This air is then passed through at least one vent opening from the at least one first dryer 301 dissipated.

In the transport direction of the printing material web 02 after the area of action of the at least one radiation source of the at least one first dryer 301 At least a first cooling device is preferably arranged. The at least one first cooling device preferably has at least one first cooling roller and preferably a first, at least one first cooling roller engagable and / or salaried Kühlwalzenpresseur and preferably at least one, on the at least one first cooling roller engageable and / or employed Anlenkwalze.

Along the transport path of the printing material web 02 After an extraction nip and / or after a rewet device at least one post-processing device is arranged, which is preferably designed as a single or multi-stage folding device and / or has a sheet cutter and / or a chart display or is designed as a take-up device. In this and / or by this post-processing device, the printing substrate 02 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 substrate to be processed 02 is for example at least 1500 mm, preferably at least 2000 mm and more preferably at least 2500 mm. Through the arranged guide elements 241 , in particular in connection with the arranged inner support elements 274 , but even larger working widths and / or web widths are possible. The guiding elements 241 In the transverse direction, they preferably have an extent which is at least as great as the working width of the printing press 01 and / or the at least one first printing unit 200 , more preferably by at least 2 cm and even more preferably by at least 5 cm larger, to an attachment of the guide elements 241 in the fixtures 271 to enable.

In one embodiment of the at least one first printing unit 200 is one for contact with the substrate 02 provided contact surface of the respective guide element 241 in its on the transverse direction Q relative to the middle region arranged increased compared to the two on the transverse direction Q related outer ends of this contact surface. In this way, in particular in connection with the convex curvature of the printing section of the transport path in the central region results in a longer transport path of the printing substrate 02 as at the outer ends. This will make the substrate 02 during its transport in the transverse direction in each case pulled outwards and thereby stretched. This preferably leads to a reduction of undesired undulations and vibrations of the printing substrate 02 , For example, at least one guide element 241 and are preferably more or more preferably all the printing section of the substrate 02 provided transport route defining guide elements 241 in the transverse direction A bent convexly. For example, this is per guide element 241 arranged at least one elevated inner support element or is preferably a plurality or all of the guide elements 241 common inner support element 274 arranged elevated, in particular relative to the lateral support elements 273 and / or in particular based on respective contact areas 278 , A variable increase and thus deflection is possible, but preferably not necessary. Alternatively, the guide elements 241 are not elastically bent, but even be shaped accordingly, for example, in the middle have a thicker cross-section than the outside. The printheads are preferred 221 nevertheless all arranged at a substantially equal distance from the intended transport path. For example, they are arranged in a corresponding arc on a holding element and / or is a the printheads 21 supporting holding element itself bent, in particular analogous to the corresponding guide elements 241 ,

LIST OF REFERENCE NUMBERS

01

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

02

Substrate, substrate web

200

Printing unit, inkjet printing unit, first

201

bruise

211

application site

221

Imaging device, printhead

222

Print head row

223

Double row of printheads

224

pressure range

225

-

226

print section

227

deflection

228

Surface, lateral surface, surface, outer ( 241 )

229

Central axis ( 241 )

230

-

231

nozzle beam

241

vane

249

Bedruckstoffführung

250

-

251

Web guiding means, web guiding roll, first

252

web guide

253

Web guiding means, web guiding roll

254

Web guiding means, web guiding roll, second

255

-

256

web guide

257

Web guiding means, web guiding roll

258

-

259

-

260

-

261

support point

271

holder

272

Locking device, screw

273

Supporting element, lateral

274

Support element, inside

275

-

276

supporting frame

277

traverse

278

Support area ( 273 ; 274 )

279

swivel device

280

-

281

Swivel axis, first

282

Pivot axis, second

283

frame

284

intermediary

285

-

286

Part-turn actuator, linear drive

287

linear guide

288

junction

289

-

290

-

291

maintenance room

292

Shielding device, shielding surface, shielding plate

293

Stand aid, stand space

294

Bahnfixiereinrichtung, first

295

-

296

Bahnfixiereinrichtung, second

297

deflecting

300

dryer unit

301

Drying aid, dryer, first

A

Direction, transverse direction

B

Main direction

T1

Transport direction, first

T2

Transport direction, second

Claims (7)

Printing unit (200), wherein the printing unit (200) has at least one frame (283) and wherein the printing unit (200) at least a first, by at least two guide elements (241) with specified, for printing material webs (02) provided transport path and at least one relatively at least a first web fixing device (294) designed as a suction device for fixing a first section of a printing substrate web (02) relative to the first web fixing device (294) and and at least one support element (273; ) movable support member (273; 274) also relative to the frame (283) movable second as sow geinrichtung formed Bahnfixiereinrichtung (296) for fixing a second portion of a printing substrate (02) relative to the second web fixing device (296) and relative to the at least one movable support member (273; 274) and wherein the at least one support element (273; 274) is pivotally arranged together with the at least one second web fixing device (296) and together with the at least two guide elements (241) about at least one common pivot axis (281; 282) the second web fixing device (296) is movable relative to the first web fixing device (294), and wherein a distance between the at least one second web fixing device (296) and the at least one first web fixing device (294) is changeable. Pressure unit after Claim 1 , characterized in that the at least two of the first for printing material (02) provided transport path with defining guide elements (241) together with the at least one support element (273; 274) are arranged relative to the frame (283) movable and / or that the at least two guide elements (241) relative to the at least one support element (273; 274) fixed guide elements (241). Pressure unit after Claim 1 and / or 2, characterized in that a transverse direction (A) is a horizontal, orthogonal to the substrate for (02) provided transport path through the at least one printing unit (200) oriented direction (A) and that at least one of the at least two of these first provided transport path in the region of the pressure section (226) with defining guide elements (241) at three in the transverse direction (A) spaced locations with a total of at least two lateral support elements (273) and at least one inner support member (274) is in contact and thereby in his Location is fixed. Pressure unit after Claim 1 and / or 2 and / or 3, characterized in that the printing unit (200) has at least two imaging devices (221), by the respective application points (211) are defined for printing fluid and that a printing section (226) of the first for substrate (02 ) provided on a transport path along this first application point (211) of the printing unit (200) begins and ends at a provided along this transport route last job (211) of the printing unit (200) and that the at least two provided the transport path with defining guide elements ( 241) are arranged one behind the other along the pressure section (226) of this first provided transport path. Method for handling a printing material web (02) in a printing unit (200), wherein at least a part of the printing material web (02) is fixed by means of a first web fixing device (294) relative to this first web fixing device (294) and relative to a frame (283) of the printing unit ( 200) and wherein at least a part of the printing material web (02) by means of a second Bahnfixiereinrichtung (296) relative to this second Bahnfixiereinrichtung (296) and relative to a movable, this second Bahnfixiereinrichtung (296) carrying support member (273, 274) of the printing unit (200) is fixed and wherein at a along the printing material web (02) between the first web fixing (294) and the second web fixing (296) arranged separation point the printing substrate (02) is separated into a first section and a second section, so that at least a portion of the first portion of the at least one printing material web (02) relative to the first Bahnfixier means (294) and relative to the frame (283) is fixed and so that at least a portion of the second portion of the at least one printing substrate (02) relative to the second web fixing device (296) and relative to the second web fixing device (296) carrying the support element (273; Wherein the at least one second web fixing device (296) is moved together with the second section of the printing material web (02) fixed thereto and is removed from the first web fixing device (294) and the first section of the printing material web (02) fixed thereto and wherein thereafter the at least one second web fixing device (296) together with the second section of the printing material web fixed thereto (02) and moved to the first web fixing device (294) and the fixed thereto first portion of the printing substrate (02), and wherein then the previously separate ends of the two sections of the printing substrate (02) are interconnected. Method according to Claim 5 , characterized in that the at least one second web fixing device (296) moves together with the second section of the printing material web (02) fixed thereto and is moved toward the first web fixing device (294) and the first section of the printing material web (02) fixed thereto previously separated ends of the two sections of the printing substrate (02) again lie opposite. Method according to Claim 5 or 6 , characterized in that by the removal of the second portion of the printing material web (02) of the first portion of the printing substrate (02) a maintenance space (291) is released and / or during the removal of the second portion of the printing substrate (02) of the first Section of the printing substrate (02) at least one guide path defining the transport (241) is moved to a maintenance position.

Images