EP3251859A1 - Device for printing a web to be printed - Google Patents
Device for printing a web to be printed Download PDFInfo
- Publication number
- EP3251859A1 EP3251859A1 EP17167458.3A EP17167458A EP3251859A1 EP 3251859 A1 EP3251859 A1 EP 3251859A1 EP 17167458 A EP17167458 A EP 17167458A EP 3251859 A1 EP3251859 A1 EP 3251859A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- printing
- web
- modules
- relative movement
- guide element
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000007639 printing Methods 0.000 title claims abstract description 130
- 239000000463 material Substances 0.000 claims abstract description 10
- 239000012530 fluid Substances 0.000 claims abstract description 9
- 239000002699 waste material Substances 0.000 claims description 8
- 239000010893 paper waste Substances 0.000 claims description 5
- 239000000976 ink Substances 0.000 description 21
- 239000000758 substrate Substances 0.000 description 8
- 238000011161 development Methods 0.000 description 4
- 230000018109 developmental process Effects 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 241000287107 Passer Species 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000013459 approach Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000009849 deactivation Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 238000007641 inkjet printing Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000003252 repetitive effect Effects 0.000 description 1
Images
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
- B41J3/00—Typewriters or selective printing or marking mechanisms characterised by the purpose for which they are constructed
- B41J3/54—Typewriters or selective printing or marking mechanisms characterised by the purpose for which they are constructed with two or more sets of type or printing elements
- B41J3/543—Typewriters or selective printing or marking mechanisms characterised by the purpose for which they are constructed with two or more sets of type or printing elements with multiple inkjet print heads
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
- B41J15/00—Devices or arrangements of selective printing mechanisms, e.g. ink-jet printers or thermal printers, specially adapted for supporting or handling copy material in continuous form, e.g. webs
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
- B41J15/00—Devices or arrangements of selective printing mechanisms, e.g. ink-jet printers or thermal printers, specially adapted for supporting or handling copy material in continuous form, e.g. webs
- B41J15/04—Supporting, feeding, or guiding devices; Mountings for web rolls or spindles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
- B41J15/00—Devices or arrangements of selective printing mechanisms, e.g. ink-jet printers or thermal printers, specially adapted for supporting or handling copy material in continuous form, e.g. webs
- B41J15/04—Supporting, feeding, or guiding devices; Mountings for web rolls or spindles
- B41J15/046—Supporting, feeding, or guiding devices; Mountings for web rolls or spindles for the guidance of continuous copy material, e.g. for preventing skewed conveyance of the continuous copy material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
- B41J25/00—Actions or mechanisms not otherwise provided for
- B41J25/304—Bodily-movable mechanisms for print heads or carriages movable towards or from paper surface
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
- B41J3/00—Typewriters or selective printing or marking mechanisms characterised by the purpose for which they are constructed
- B41J3/60—Typewriters or selective printing or marking mechanisms characterised by the purpose for which they are constructed for printing on both faces of the printing material
Definitions
- the present invention relates to a device for printing a web of printing material on a first and / or a second side with the features of claim 1.
- the invention is in the technical field of digital printing on web-shaped substrates.
- it is already known to print web-like substrates, for example made of paper, with the inkjet printing process.
- the US 5,878,320 discloses a printing machine for the digital printing of sheet-like substrate.
- electrophotographic printheads are used.
- the document discloses an embodiment in which four printheads transfer a multicolor print image to an endless intermediate carrier.
- the web-shaped printing material is brought into contact with the intermediate carrier at a first location and thereby printed on a first side. Thereafter, the substrate is guided over turning bars and thereby turned. Subsequently, the printing material is brought a second time, but with the not yet printed side, in contact with the intermediate carrier and thereby printed on the back.
- a construction corresponding to this exemplary embodiment requires a large amount of installation space due to the use of the endless intermediate support.
- the circumferential movement of the intermediate carrier and the transport movement of the web control technology must be coordinated.
- the DE 10 2014010 904 B3 discloses a printing press for printing sheet-like printing material.
- a digital printing unit is pivotally arranged such that it can print both the front and the back of an arc.
- the US 2011/0205316 A1 discloses a printing machine for printing on sheets, which are passed twice to the same digital printing units. For this purpose, the sheets are guided on a loop of the transport path through a helical turning device.
- a solution according to the invention of this object or these objects is a device having the features of claim 1.
- An apparatus for printing a web of printing material, e.g. Paper or film, on a first and / or a second side, has the following features: A printing device with at least two printing modules and with an active region assigned to the printing device, in which printing fluid is transferred by means of the printing modules to the web, a first guide element for guiding the A web along at least a first part of the effective area, a webbing downstream of the first guide element, a second guide element downstream of the web in the web running direction for guiding the web along at least a second part of the active area, and having the feature that for performing a relative movement at least one pressure module relative to at least one of the two guide elements is arranged to be movable and / or at least one of the two guide elements is arranged to be movable relative to at least one of the pressure modules.
- a printing device with at least two printing modules and with an active region assigned to the printing device, in which printing fluid is transferred by means of the printing modules to the web, a first guide element for guiding the A web along at
- a particular advantage of the invention is the fact that the printing modules directly print the web and therefore can be dispensed with an intermediate carrier with additional space and control technology. This advantage is achieved by guiding the web a first time and, after a turn, a second time through a respective part of an effective area of the printing device with the printing modules directly printing the web. In the respective parts of the effective range, the printing modules transfer the printing fluid to the web without support. From the web finally printed products can be finished.
- the first guide element and the second guide element are preferably different from each other, i. not one and the same element. However, both can preferably have the same structure or a mirror image structure. Furthermore, the turning device is preferably different from the two guide elements. And finally, the two parts of the effective range are preferably different from each other.
- a further advantage can be seen in the fact that the invention makes it possible to control, by the amount of relative movement, how little waste is generated during the execution of the relative movement or how productive the device or a press equipped therewith is.
- a preferred embodiment of the invention which is preferred on account of the simplicity and speed of execution, can be distinguished by the fact that the relative movement is a pivoting movement. It can be provided that the two guide elements are pivotally mounted about a common pivot axis. It can also be provided that the pivot axis is located on the side facing away from the pressure modules of the guide elements.
- a preferred embodiment of the invention may be distinguished by the fact that the relative movement is a linear movement and is substantially parallel to the web running direction present in the effective region.
- the solution has the advantage that the printing modules without mutual inclination to each other and therefore can be arranged compact.
- a preferred development of the invention can be distinguished by the fact that the printing modules are ink-jet printheads and that the printing fluid is ink.
- a preferred embodiment of the invention may be characterized in that at least one drive is present, which generates the relative movement.
- the drive moves the at least one printing module and / or the at least one guide element at a speed at which less waste is generated than that sets a limit value for waste.
- a preferred embodiment of the invention may be distinguished by the fact that the effective range of the printing device is composed of the effective ranges of the printing modules. It can be provided that the relative movement is a movement along at least the effective ranges of two printing modules.
- the invention also relates to a printing machine which comprises at least one device for printing a web of printing material, wherein the device is a device according to the invention or one of its preferred developments or a specific embodiment.
- Figure 1A schematically shows a device 1 for printing a web of substrate, wherein the device may be part of a printing machine 2, preferably an inkjet web printing machine.
- the printing material web 6 for example a paper or film web
- the web is guided in a web running direction 7 from an unwinder 3 to a rewinder 4.
- the web is guided around several rollers 8 around.
- the web has a first side 6A and a second side 6B. With the device shown, it is possible to print both sides of the web 6A, 6B.
- the device 1 further comprises a controller 5 which controls the web run and the printing device 10.
- the printing device 10 comprises in the illustrated embodiment, three digital printing modules 11, 12 and 13, which are preferably designed as ink-jet printheads. However, the printing device may also have more or fewer printing modules, but at least two.
- the printing device is assigned an effective region 20, which is composed of a first and a second part 20a and 20b.
- the first and the second part of the effective range of the printing device can in turn be composed of effective areas of the individual printing modules, for example the shown active areas 21, 22 and 23.
- printing fluid 30, in particular ink from the printing device or the printing modules of Printing device, transferred to the printing substrate 6.
- the effective areas the printing of the printing material takes place.
- Figure 1A further shows a first and a second guide member 40a and 40b for guiding the web 6.
- the two guide elements may be formed, for example, as baffles and generate supporting blown air and / or each have at least one roller, in particular a deflection roller.
- the two guide elements have curved surfaces.
- the device 1 shown comprises a turning device 41, which turns the web 6 by means of preferably crossed turning bars 42 in a known manner, so that the web can be printed on the second guide element 40b on its back or reverse side, while on the first guide element 40a on its Front side or recto printing side is printed.
- the device 1 has a web memory 43, which in a known manner comprises mutually displaceable rollers, so that the printing substrate 6, or a certain length thereof, stored in the web memory and can be removed from the web memory.
- the dimensioning of the web memory determines the length of the storable web section. If a web section of length L is to be printed without interruption on one side of the web and then printed on the opposite side, then the web memory is to be dimensioned such that it can store at least the web section of length L (possibly less possible stored web lengths on the other web path).
- the apparatus 1 shown also has a first dryer 44 and a second dryer 45, each for drying the ink applied to the web 6 or both sides thereof.
- the dryers may be, for example, UV dryers or IR dryers.
- a pivoting system 53 can be moved about a pivot axis 52 by means of a drive 51 and thereby a relative movement 50 (outward movement) to the printing device 10 and the pressure modules 11, 12 and 13 performs.
- a comparison between the Figures 1A and 1B clearly shows how the pivot system 53 is arranged before and after the relative movement.
- Figure 1A is the pivot system in a first position (Perfecting position), in which the first guide member 40A is at least partially adjacent to the printing device or the printing modules.
- the web 6 is printed on the recto printing side, enters the web memory 43 and is stored there. It may be provided to stop the reel 4 or only to turn very slowly. After completion of the Perfecting the web 6 is removed from the web storage and provided for the perfecting. It may be provided for this purpose to stop the unwinder 3 or to turn only very slowly.
- the pivoting system 53 is arranged in a second position (counter-pressure position), in which the second guide element 40b at least partially adjacent to the printing device 10 and the printing modules 11, 12 and 13 is arranged.
- the guide element passes through a relative movement 50 in the opposite direction (return movement).
- the web 6 passes with its counterpressure side 6b in the effective range of the printing device or the printing modules.
- a sensor 56 may be provided to control the so-called reverse passer, ie to control the relative position of the recto image and the prism image to each other.
- the sensor can capture the Perfecting image or Passer marks and initiate the printing of the perfecting image in an appropriate way.
- the web When switching from Schöntik compassion in the reverse printing mode, or during its duration and i. during the duration of the relative movements 50, the web can run in the web memory 43 and be taken out of this after completion of the switching.
- the dimensioning of the web memory, the transport speed of the web movement and the duration of the switching process can be coordinated.
- At least one pressure module is preferably deactivated for a short time, so that no pressure fluid reaches the guide elements or the gap therebetween.
- the period of deactivation is preferably chosen as short as possible in order to reduce the resulting amount of waste paper (length of the incompletely printed web section).
- unprinted web 6 enters the web memory 43 and is stored there. Before the start of a new printing operation (printing of the first web page 6a), the stored, unprinted web is removed from the web memory, but back, i. in the direction of unwinder 3, moved.
- a sensor 57 may be provided to monitor the retrace of the web and to stop it upon reaching the previously printed image (or images), i. to ensure a substantially seamless printing of the first web page 6a.
- FIGS. 2A and 2 B schematically another embodiment of the device according to the invention is shown.
- a linear system 54 with a carriage 55 is provided here.
- This also comprises a first and a second guide element 40a and 40b, respectively preferably arranged on the slide, and a drive 51, in particular a linear drive, eg a spindle drive for the slide.
- the two guide elements have flat, non-curved surfaces.
- Unwind and rewinder 3 and 4, deflection rollers 8, turning device 41, web memory 43 and dryer 44 and 45 are accordingly Figure 1A and 1B executed.
- FIG. 3A schematically shows the device 1 in five different states a to e during the relative movement 50 and during the switching from Schöntik compassion in the reverse printing operation.
- the first printing module 11, the second printing module 12 and the third printing module 13 print ink on the recto printing side 6a of the web 6. It can be seen that on the first side of the web or the recto printing side, a first ink 71 of the first printing module, a second ink 72 of the second printing module and a third ink 73 of the third printing module come to rest.
- the pivot system 53 or the linear system 54 may be permanently disposed in the Perfecting position.
- the pivot system 53 or the linear system 54 could be permanently located in the resistance position.
- the web 6 would in any case only be printed on one side.
- the web can also be guided directly from the first guide element 40a to the second guide element 40b in straight printing operation, ie not via the turning device 41 and the web memory 43.
- embodiments may also be provided not to move the guide members 40a and 40b, but the pressure modules 11, 12 and 13 (pivot or linearly move).
- the guide elements 40a and 40b are moved. These are usually lighter and not, like the print modules, connected to ink supplies.
Landscapes
- Ink Jet (AREA)
- Registering, Tensioning, Guiding Webs, And Rollers Therefor (AREA)
Abstract
Die Erfindung betrifft eine Vorrichtung (1) zum Bedrucken einer Bahn (6) aus Bedruckstoff auf einer ersten und/oder einer zweiten Seite (6a, 6b), mit einer Druckeinrichtung (10) mit wenigstens zwei Druckmodulen (11, 12, 13), insbesondere Tintenstrahl-Druckköpfen, und mit einem der Druckeinrichtung zugeordneten Wirkbereich (20), in welchem Druckfluid (30), insbesondere Tinte, mittels der Druckmodule auf die Bahn übertragen wird, mit einem ersten Führungselement (40a) zum Führen der Bahn entlang wenigstens eines ersten Teils (20a) des Wirkbereichs, einer dem ersten Führungselement in Bahnlaufrichtung (7) nachgeordneten Wendeeinrichtung (41) für die Bahn, und einem der Wendeeinrichtung in Bahnlaufrichtung nachgeordneten zweiten Führungselement (40b) zum Führen der Bahn entlang wenigstens eines zweiten Teils (20b) des Wirkbereichs, wobei zum Ausführen einer Relativbewegung (50) wenigstens ein Druckmodul relativ zu wenigstens einem der beiden Führungselemente bewegbar angeordnet ist und/oder wenigstens eines der beiden Führungselemente relativ zu wenigstens einem der Druckmodule bewegbar angeordnet ist. The invention relates to a device (1) for printing on a web (6) of printing material on a first and / or a second side (6a, 6b), with a printing device (10) having at least two printing modules (11, 12, 13), in particular ink-jet printheads, and with an active region (20) assigned to the printing device in which printing fluid (30), in particular ink, is transferred to the web by means of the printing modules, with a first guide element (40a) for guiding the web along at least one first path Part (20a) of the effective region, a turning device (41) downstream of the first guide element in the web running direction (7), and a second guide element (40b) downstream of the turning device in the web running direction for guiding the web along at least one second part (20b) of the web Effective range, wherein for carrying out a relative movement (50) at least one pressure module arranged movably relative to at least one of the two guide elements i St and / or at least one of the two guide elements is arranged movable relative to at least one of the pressure modules.
Description
Die vorliegende Erfindung betrifft eine Vorrichtung zum Bedrucken einer Bahn aus Bedruckstoff auf einer ersten und/oder einer zweiten Seite mit den Merkmalen von Anspruch 1.The present invention relates to a device for printing a web of printing material on a first and / or a second side with the features of claim 1.
Die Erfindung liegt in dem technischen Gebiet des Digitaldrucks auf bahnförmige Bedruckstoffe. In diesem Gebiet ist es bereits bekannt, bahnförmige Bedruckstoffe, zum Beispiel aus Papier, mit dem Tintenstrahl-Druckverfahren zu bedrucken.The invention is in the technical field of digital printing on web-shaped substrates. In this field, it is already known to print web-like substrates, for example made of paper, with the inkjet printing process.
Die
Die
Die
Vor dem Hintergrund dieses Standes der Technik ist es eine Aufgabe der vorliegenden Erfindung, eine verbesserte Vorrichtung zum Bedrucken einer Bahn aus Bedruckstoff zu schaffen, welche wenig Bauraum beansprucht. Es ist eine weitere Aufgabe, bei einer solchen Vorrichtung Bauteile und Steuerungstechnik einzusparen und dadurch die Herstellkosten zu senken.Against the background of this prior art, it is an object of the present invention to provide an improved apparatus for printing a web of substrate, which takes up little space. It is a further object to save on components and control technology in such a device and thereby reduce the manufacturing costs.
Eine erfindungsgemäße Lösung dieser Aufgabe bzw. dieser Aufgaben stellt eine Vorrichtung mit den Merkmalen von Anspruch 1 dar.A solution according to the invention of this object or these objects is a device having the features of claim 1.
Eine erfindungsgemäße Vorrichtung zum Bedrucken einer Bahn aus Bedruckstoff, z.B. Papier oder Folie, auf einer ersten und/oder einer zweiten Seite weist folgende Merkmale auf: Eine Druckeinrichtung mit wenigstens zwei Druckmodulen und mit einem der Druckeinrichtung zugeordneten Wirkbereich, in welchem Druckfluid mittels der Druckmodule auf die Bahn übertragen wird, ein erstes Führungselement zum Führen der Bahn entlang wenigstens eines ersten Teils des Wirkbereichs, eine dem ersten Führungselement in Bahnlaufrichtung nachgeordnete Wendeeinrichtung für die Bahn, ein der Wendeeinrichtung in Bahnlaufrichtung nachgeordnetes zweites Führungselement zum Führen der Bahn entlang wenigstens eines zweiten Teils des Wirkbereichs, und weist das Merkmal auf, dass zum Ausführen einer Relativbewegung wenigstens ein Druckmodul relativ zu wenigstens einem der beiden Führungselemente bewegbar angeordnet ist und/oder wenigstens eines der beiden Führungselemente relativ zu wenigstens einem der Druckmodule bewegbar angeordnet ist.An apparatus according to the invention for printing a web of printing material, e.g. Paper or film, on a first and / or a second side, has the following features: A printing device with at least two printing modules and with an active region assigned to the printing device, in which printing fluid is transferred by means of the printing modules to the web, a first guide element for guiding the A web along at least a first part of the effective area, a webbing downstream of the first guide element, a second guide element downstream of the web in the web running direction for guiding the web along at least a second part of the active area, and having the feature that for performing a relative movement at least one pressure module relative to at least one of the two guide elements is arranged to be movable and / or at least one of the two guide elements is arranged to be movable relative to at least one of the pressure modules.
Die erfindungsgemäße Vorrichtung beansprucht in vorteilhafter Weise wenig Bauraum und kommt in vorteilhafter Weise mit weniger Bauteilen und Steuerungstechnik aus. Hierdurch können die Herstellkosten gesenkt und die Vorrichtung platzsparend betrieben werden.The inventive device claimed in an advantageous manner little space and comes in an advantageous manner with fewer components and control technology. As a result, the production costs can be reduced and the device can be operated to save space.
Ein besonderer Vorteil der Erfindung ist darin zu sehen, dass die Druckmodule die Bahn direkt bedrucken und daher auf einen Zwischenträger mit zusätzlichem Platzbedarf und Steuerungstechnik verzichtet werden kann. Dieser Vorteil wird dadurch erzielt, dass die Bahn ein erstes Mal und - nach einer Wendung - ein zweites Mal durch einen jeweiligen Teil eines Wirkbereichs der Druckeinrichtung mit den die Bahn direkt bedruckenden Druckmodulen geführt wird. In den jeweiligen Teilen des Wirkbereichs übertragen die Druckmodule das Druckfluid zwischenträgerlos auf die Bahn. Aus der Bahn können schließlich Druckprodukte endverarbeitet werden.A particular advantage of the invention is the fact that the printing modules directly print the web and therefore can be dispensed with an intermediate carrier with additional space and control technology. This advantage is achieved by guiding the web a first time and, after a turn, a second time through a respective part of an effective area of the printing device with the printing modules directly printing the web. In the respective parts of the effective range, the printing modules transfer the printing fluid to the web without support. From the web finally printed products can be finished.
Das erste Führungselement und das zweite Führungselement sind vorzugsweise voneinander verschieden, d.h. nicht ein und dasselbe Element. Beiden können jedoch bevorzugt denselben Aufbau oder einen spiegelbildlichen Aufbau aufweisen. Weiterhin ist auch die Wendeeinrichtung vorzugsweise von den beiden Führungselementen verschieden. Und schließlich sind auch die beiden Teile des Wirkbereichs vorzugsweise voneinander verschieden.The first guide element and the second guide element are preferably different from each other, i. not one and the same element. However, both can preferably have the same structure or a mirror image structure. Furthermore, the turning device is preferably different from the two guide elements. And finally, the two parts of the effective range are preferably different from each other.
Ein weiterer Vorteil kann darin gesehen werden, dass es die Erfindung ermöglicht, durch die Höhe des Betrags der Relativbewegung zu steuern, wie wenig Makulatur während der Ausführung der Relativbewegung erzeugt wird bzw. wie produktiv die Vorrichtung oder eine damit ausgestattete Druckmaschine ist.A further advantage can be seen in the fact that the invention makes it possible to control, by the amount of relative movement, how little waste is generated during the execution of the relative movement or how productive the device or a press equipped therewith is.
Vorteilhafte und daher bevorzugte Weiterbildungen der Erfindung ergeben sich aus den Unteransprüchen sowie aus der Beschreibung und den zugehörigen Zeichnungen.Advantageous and therefore preferred developments of the invention will become apparent from the dependent claims and from the description and the accompanying drawings.
Eine aufgrund der Einfachheit und Schnelligkeit der Durchführung bevorzugte Weiterbildung der Erfindung kann sich dadurch auszeichnen, dass die Relativbewegung eine Schwenkbewegung ist. Dabei kann vorgesehen sein, dass die beiden Führungselemente um eine gemeinsame Schwenkachse schwenkbar gelagert sind. Dabei kann auch vorgesehen sein, dass die Schwenkachse auf der den Druckmodulen abgewandten Seite der Führungselemente liegt.A preferred embodiment of the invention, which is preferred on account of the simplicity and speed of execution, can be distinguished by the fact that the relative movement is a pivoting movement. It can be provided that the two guide elements are pivotally mounted about a common pivot axis. It can also be provided that the pivot axis is located on the side facing away from the pressure modules of the guide elements.
Eine bevorzugte Weiterbildung der Erfindung kann sich dadurch auszeichnen, dass die Relativbewegung eine lineare Bewegung ist und im Wesentlichen parallel zur im Wirkbereich vorhandenen Bahnlaufrichtung ist. Die Lösung hat den Vorteil, dass die Druckmodule ohne gegenseitige Neigung zueinander und daher kompakt angeordnet werden können.A preferred embodiment of the invention may be distinguished by the fact that the relative movement is a linear movement and is substantially parallel to the web running direction present in the effective region. The solution has the advantage that the printing modules without mutual inclination to each other and therefore can be arranged compact.
Eine bevorzugte Weiterbildung der Erfindung kann sich dadurch auszeichnen, dass die Druckmodule Tintenstrahl-Druckköpfe sind und dass das Druckfluid Tinte ist.A preferred development of the invention can be distinguished by the fact that the printing modules are ink-jet printheads and that the printing fluid is ink.
Eine bevorzugte Weiterbildung der Erfindung kann sich dadurch auszeichnen, dass wenigstens ein Antrieb vorhanden ist, welcher die Relativbewegung erzeugt. Dabei kann vorgesehen sein, dass der Antrieb das wenigstens eine Druckmodul und/oder das wenigstens eine Führungselement mit einer Geschwindigkeit bewegt, bei welcher weniger Makulatur erzeugt wird, als dass ein Grenzwert für Makulatur festgelegt.A preferred embodiment of the invention may be characterized in that at least one drive is present, which generates the relative movement. In this case, it can be provided that the drive moves the at least one printing module and / or the at least one guide element at a speed at which less waste is generated than that sets a limit value for waste.
Eine bevorzugte Weiterbildung der Erfindung kann sich dadurch auszeichnen, dass sich der Wirkbereich der Druckeinrichtung aus den Wirkbereichen der Druckmodule zusammensetzt. Dabei kann vorgesehen sein, dass die Relativbewegung eine Bewegung entlang wenigstens der Wirkbereiche von zwei Druckmodulen ist.A preferred embodiment of the invention may be distinguished by the fact that the effective range of the printing device is composed of the effective ranges of the printing modules. It can be provided that the relative movement is a movement along at least the effective ranges of two printing modules.
Die Erfindung betrifft auch eine Druckmaschine, welche wenigstens eine Vorrichtung zum Bedrucken einer Bahn aus Bedruckstoff umfasst, wobei es sich bei der Vorrichtung um eine erfindungsgemäße Vorrichtung bzw. einer ihrer bevorzugten Weiterbildungen oder um ein konkretes Ausführungsbeispiel handelt.The invention also relates to a printing machine which comprises at least one device for printing a web of printing material, wherein the device is a device according to the invention or one of its preferred developments or a specific embodiment.
Die Erfindung und deren vorteilhafte Weiterbildungen werden nachfolgend unter Bezug auf die Zeichnungen anhand bevorzugter Ausführungsbeispiele näher beschrieben. In den Zeichnungen sind einander entsprechende Elemente mit jeweils denselben Bezugszeichen versehen. Teilweise wurden sich wiederholende Bezugszeichen auch weggelassen.The invention and its advantageous developments are described below with reference to the drawings with reference to preferred embodiments. In the drawings, corresponding elements are provided with the same reference numerals. Partial repetitive reference numerals have also been omitted.
Die Zeichnungen zeigen:
- Figur 1A:
- Ein bevorzugtes Ausführungsbeispiel einer erfindungsgemäßen Vorrichtung, bevor eine Relativbewegung ausgeführt wurde;
- Figur 1B:
- Die Vorrichtung aus
Figur 1A , nachdem eine Relativbewegung ausgeführt wurde; - Figur 2A:
- Eine weitere bevorzugte Ausführungsform der erfindungsgemäßen Vorrichtung, bevor eine Relativbewegung ausgeführt wurde;
- Figur 2B:
- Die Vorrichtung aus
Figur 2A , nachdem eine Relativbewegung ausgeführt wurde; - Figur 3A:
- Die Vorrichtung aus den
Figuren 2A und2B während der Ausführung einer Relativbewegung; - Figur 3B:
- Eine schematische Darstellung des Tintenauftrags auf der Bahn und des durch die Relativbewegung erzeugten Makulatur-Bereichs.
- FIG. 1A
- A preferred embodiment of a device according to the invention, before a relative movement has been carried out;
- FIG. 1B
- The device off
Figure 1A after a relative movement has been carried out; - FIG. 2A
- A further preferred embodiment of the device according to the invention, before a relative movement has been carried out;
- FIG. 2B:
- The device off
FIG. 2A after a relative movement has been carried out; - FIG. 3A:
- The device from the
FIGS. 2A and2 B during the execution of a relative movement; - FIG. 3B:
- A schematic representation of the ink application on the web and the waste generated by the relative movement waste area.
Die Druckeinrichtung 10 umfasst in dem dargestellten Ausführungsbeispiel drei digitale Druckmodule 11, 12 und 13, welche bevorzugt als Tintenstrahl-Druckköpfe ausgeführt sind. Die Druckeinrichtung kann jedoch auch mehr oder weniger Druckmodule aufweisen, wenigstens jedoch zwei. Der Druckeinrichtung ist ein Wirkbereich 20 zugeordnet, welcher sich aus einem ersten und einem zweiten Teil 20a und 20b zusammensetzt. Der erste und der zweite Teil des Wirkbereichs der Druckeinrichtung können sich wiederum aus Wirkbereichen der einzelnen Druckmodule zusammensetzen, zum Beispiel den gezeigten Wirkbereichen 21, 22 und 23. In den jeweiligen Wirkbereichen wird Druckfluid 30, insbesondere Tinte, von der Druckeinrichtung bzw. den Druckmodulen der Druckeinrichtung, auf die Bedruckstoffbahn 6 übertragen. Mit anderen Worten: In den Wirkbereichen erfolgt das Bedrucken des Bedruckstoffs.The
Weiterhin weist die in
Weiterhin weist die Vorrichtung 1 einen Bahnspeicher 43 auf, welcher in bekannter Weise gegeneinander verschiebbare Rollen umfasst, so dass die Bedruckstoffbahn 6, bzw. ein bestimmter Längenabschnitt davon, in dem Bahnspeicher gespeichert und aus dem Bahnspeicher entnommen werden kann. Die Dimensionierung des Bahnspeichers bestimmt dabei die Länge des speicherbaren Bahnabschnitts. Soll ein Bahnabschnitt der Länge L auf einer Bahnseite unterbrechungsfrei bedruckt werden und anschließend auf der Gegenseite bedruckt werden, so ist der Bahnspeicher so zu dimensionieren, dass er wenigstens den Bahnabschnitt der Länge L speichern kann (ggf. abzüglich möglicher gespeicherter Bahnlängen auf dem sonstigen Bahnpfad).Furthermore, the device 1 has a
Schließlich weist die gezeigte Vorrichtung 1 auch einen ersten Trockner 44 und einen zweiten Trockner 45 auf, jeweils zum Trocknen der auf die Bahn 6 bzw. deren beiden Seiten aufgebrachten Tinte. Bei den Trocknern kann es sich zum Beispiel um UV-Trockner oder IR-Trockner handeln.Finally, the apparatus 1 shown also has a
In
Die Bahn 6 wird auf der Schöndruckseite bedruckt, läuft in den Bahnspeicher 43 ein und wird dort gespeichert. Es kann hierzu vorgesehen sein, den Aufwickler 4 anzuhalten oder nur sehr langsam zu drehen. Nach Abschluss des Schöndrucks wird die Bahn 6 aus dem Bahnspeicher entnommen und für den Widerdruck bereitgestellt. Es kann hierzu vorgesehen sein, den Abwickler 3 anzuhalten oder nur sehr langsam zu drehen.The
In
Ein Sensor 56 kann vorgesehen sein, um den sogenannten Wende-Passer zu steuern, d.h. die relative Lage des Schöndruck-Bildes und des Widerdruck-Bildes zueinander zu steuern. Der Sensor kann das Schöndruck-Bild oder Passer-Marken erfassen und den Druck des Widerdruck-Bildes passgerecht einleiten.A
Beim Umschalten vom Schöndruckbetrieb in den Widerdruckbetrieb, bzw. während dessen Dauer und d.h. während der Dauer der Relativbewegungen 50 , kann die Bahn in den Bahnspeicher 43 laufen und nach Abschluss des Umschaltens wieder aus diesem entnommen werden. Hierzu können die Dimensionierung des Bahnspeichers, die Transportgeschwindigkeit der Bahnbewegung und die Dauer des Umschaltprozesses aufeinander abgestimmt werden.When switching from Schöndruckbetrieb in the reverse printing mode, or during its duration and i. during the duration of the
Während des Umschaltens wird wenigstens ein Druckmodul für kurze Zeit bevorzugt deaktiviert, so dass kein Druckfluid auf die Führungselemente oder in den Spalt dazwischen gelangt. Die Zeitspanne der Deaktivierung wird dabei bevorzugt so kurz wie möglich gewählt, um die entstehende Menge an Makulatur (Länge des nicht vollständig bedruckten Bahnabschnitts) zu verringern.During the switching, at least one pressure module is preferably deactivated for a short time, so that no pressure fluid reaches the guide elements or the gap therebetween. The period of deactivation is preferably chosen as short as possible in order to reduce the resulting amount of waste paper (length of the incompletely printed web section).
Während des Widerdrucks (Bedrucken der zweiten Bahnseite 6b) läuft unbedruckte Bahn 6 in den Bahnspeicher 43 ein und wird dort gespeichert. Vor dem Start eines neuen Schöndrucks (Bedrucken der ersten Bahnseite 6a) wird die gespeicherte, unbedruckte Bahn aus dem Bahnspeicher entnommen, jedoch zurück, d.h. in Richtung Abwickler 3, bewegt. Ein Sensor 57 kann vorgesehen sein, um das Rücklaufen der Bahn zu überwachen und beim Erreichen des zuvor gedruckten Bildes (oder der Bilder) zu stoppen, d.h. ein im Wesentlichen nahtloses Bedrucken der ersten Bahnseite 6a zu gewährleisten.During the reverse printing (printing the
In den
Im Zustand a drucken das erste Druckmodul 11, das zweite Druckmodul 12 und das dritte Druckmodul 13 Tinte auf die Schöndruckseite 6a der Bahn 6. Es ist erkennbar, dass auf der ersten Seite der Bahn bzw. der Schöndruckseite eine erste Tinte 71 des ersten Druckmoduls, eine zweite Tinte 72 des zweiten Druckmoduls und eine dritte Tinte 73 des dritten Druckmoduls zu liegen kommen. Für die Geschwindigkeiten gilt: v1=v3=0, v2=v.In the state a, the
Im Zustand b sind die beiden Führungselemente 40a und 40b infolge der Relativbewegung 50 im Vergleich zum Zustand a bereits etwas verschoben. In diesem Zustand können die beiden Druckmodule 11 und 12 noch auf die erste Seite 6a der Bahn drucken, während das Druckmodul 13 gerade beginnt, auf die zweite Seite der Bahn 6b zu drucken. Für die Geschwindigkeiten gilt: v1=v2=v3= v.In state b, the two
Im Zustand c und im Zustand d beginnen nun auch das zweite Druckmodul 12 und das erste Druckmodul 11 damit, auf die zweite Seite 6b der Bahn zu drucken. Auf diese Weise gelangt erste Tinte 81 des ersten Druckmoduls, zweite Tinte 82 des zweiten Druckmoduls und dritte Tinte 83 des dritten Druckmoduls auf die zweite Seite 6b der gewendeten Bahn. Für die Geschwindigkeiten gilt: v1=v2=v3= v.In the state c and in the state d, the
Im Zustand e wird die Bahn 6 im Widerdruck bedruckt, wobei für die Geschwindigkeiten gilt: v1=v2=0, v3= v. Es ist zudem erkennbar, dass durch das Umschalten bzw. die Relativbewegung der beiden Führungselemente eine Art Treppe sowohl der Tinten 71 bis 73 als auch der Tinten 81 bis 83 entstehen kann (vgl. die Zustände a mit e).In the state e, the
In der
Soll mit der erfindungsgemäßen Vorrichtung 1 nur im Schöndruckbetrieb gedruckt werden, so kann das Schwenksystem 53 oder das Linearsystem 54 permanent in der Schöndruck-Position angeordnet sein. Alternativ könnte das Schwenksystem 53 oder das Linearsystem 54 permanent in der Widerdrukc-Position angeordnet sein. In beiden Fällen würde die Bahn 6 jedenfalls nur einseitig bedruckt werden. Weiter alternativ kann die Bahn im Schöndruck-Betrieb auch direkt vom ersten Führungselement 40a zum zweiten Führungselement 40b geführt werden, also nicht über die Wendeeinrichtung 41 und den Bahnspeicher 43.Should be printed with the device 1 according to the invention only in Perfecting mode, so the
Alternativ zu den in den
- 11
- Vorrichtungcontraption
- 22
- Druckmaschinepress
- 33
- Abwicklerliquidator
- 44
- Aufwicklerrewinder
- 55
- Steuerungcontrol
- 66
- Bahntrain
- 6a6a
- erste Seite der Bahnfirst side of the train
- 6b6b
- zweite Seite der Bahnsecond side of the train
- 77
- BahnlaufrichtungWeb direction
- 88th
- Rollenroll
- 1010
- Druckeinrichtungprint Setup
- 1111
- erstes Druckmodul, insbesondere Tintenstrahl-Druckkopffirst print module, in particular inkjet print head
- 1212
- zweites Druckmodul, insbesondere Tintenstrahl-Druckkopfsecond printing module, in particular inkjet printhead
- 1313
- drittes Druckmodul, insbesondere Tintenstrahl-Druckkopfthird printing module, especially inkjet printhead
- 2020
- Wirkbereich der DruckeinrichtungEffective range of the printing device
- 20a20a
- erster Teil des Wirkbereichs der Druckeinrichtungfirst part of the effective range of the printing device
- 20b20b
- zweiter Teil des Wirkbereichs der Druckeinrichtungsecond part of the effective range of the printing device
- 2121
- Wirkbereich des ersten DruckmodulsEffective range of the first print module
- 2222
- Wirkbereich des zweiten DruckmodulsEffective range of the second pressure module
- 2323
- Wirkbereich des dritten DruckmodulsEffective range of the third pressure module
- 3030
- Druckfluid, insbesondere TintePressurized fluid, in particular ink
- 40a40a
- erstes Führungselementfirst guide element
- 40b40b
- zweites Führungselementsecond guide element
- 4141
- Wendeeinrichtungturning device
- 4242
- Wendestangenturning bars
- 4343
- Bahnspeicherweb store
- 4444
- erster Trocknerfirst dryer
- 4545
- zweiter Trocknersecond dryer
- 5050
- Relativbewegungrelative movement
- 5151
- Antriebdrive
- 5252
- Schwenkachseswivel axis
- 5353
- Schwenksystemswivel system
- 5454
- Linearsystemlinear system
- 5555
- Schlittencarriage
- 5656
- Sensorsensor
- 5757
- Sensorsensor
- 6060
- Makulaturwastepaper
- 7171
- erste Tinte auf Schöndruckseitefirst ink on recto print page
- 7272
- zweite Tinte auf Schöndruckseitesecond ink on recto print page
- 7373
- dritte Tinte auf Schöndruckseitethird ink on recto print page
- 8181
- erste Tinte auf Widerdruckseitefirst ink on reverse side
- 8282
- zweite Tinte auf Widerdruckseitesecond ink on reverse side
- 8383
- dritte Tinte auf Widerdruckseitethird ink on reverse side
Claims (10)
einer Druckeinrichtung (10) mit wenigstens zwei Druckmodulen (11, 12, 13) und mit einem der Druckeinrichtung zugeordneten Wirkbereich (20), in welchem Druckfluid (30) mittels der Druckmodule auf die Bahn übertragen wird,
mit einem ersten Führungselement (40a) zum Führen der Bahn entlang wenigstens eines ersten Teils (20a) des Wirkbereichs,
einer dem ersten Führungselement in Bahnlaufrichtung (7) nachgeordneten Wendeeinrichtung (41) für die Bahn, und
einem der Wendeeinrichtung in Bahnlaufrichtung nachgeordneten zweiten Führungselement (40b) zum Führen der Bahn entlang wenigstens eines zweiten Teils (20b) des Wirkbereichs,
wobei zum Ausführen einer Relativbewegung (50) wenigstens ein Druckmodul relativ zu wenigstens einem der beiden Führungselemente bewegbar angeordnet ist und/oder wenigstens eines der beiden Führungselemente relativ zu wenigstens einem der Druckmodule bewegbar angeordnet ist.Device (1) for printing a web (6) of printing material on a first and / or a second side (6a, 6b), with
a printing device (10) having at least two printing modules (11, 12, 13) and an active region (20) assigned to the printing device, in which printing fluid (30) is transferred to the web by means of the printing modules,
with a first guide element (40a) for guiding the web along at least one first part (20a) of the effective region,
one of the first guide element in the web running direction (7) downstream turning device (41) for the web, and
a second guide element (40b) downstream of the turning device in the web running direction for guiding the web along at least one second part (20b) of the effective region,
wherein for carrying out a relative movement (50) at least one pressure module is arranged to be movable relative to at least one of the two guide elements and / or at least one of the two guide elements is arranged to be movable relative to at least one of the pressure modules.
dadurch gekennzeichnet,
dass die Relativbewegung eine Schwenkbewegung ist.Device according to claim 1,
characterized,
that the relative movement is a pivoting movement.
dadurch gekennzeichnet,
dass die beiden Führungselemente um eine gemeinsame Schwenkachse (52) schwenkbar gelagert sind.Device according to claim 2,
characterized,
that the two guide elements are pivotally mounted about a common pivot axis (52).
dadurch gekennzeichnet,
dass die Schwenkachse auf der den Druckmodulen abgewandten Seite der Führungselemente liegt.Device according to claim 3,
characterized,
that the pivot axis is located on the opposite side of the printing modules of the guide elements.
dadurch gekennzeichnet,
dass die Relativbewegung eine lineare Bewegung ist und im Wesentlichen parallel zur im Wirkbereich vorhandenen Bahnlaufrichtung liegt.Device according to claim 1,
characterized,
that the relative movement is a linear movement and substantially parallel to the existing in the active area the web running direction.
dadurch gekennzeichnet,
dass die Druckmodule Tintenstrahl-Druckköpfe sind und dass das Druckfluid Tinte ist.Device according to one of the preceding claims,
characterized,
that the print modules are inkjet printheads and that the printing fluid is ink.
dadurch gekennzeichnet,
dass wenigstens ein Antrieb (51) vorhanden ist, welcher die Relativbewegung erzeugt.Device according to one of the preceding claims,
characterized,
that at least one drive (51) is present, which generates the relative movement.
dadurch gekennzeichnet,
dass der Antrieb das wenigstens eine Druckmodul und/oder das wenigstens eine Führungselement mit einer Geschwindigkeit bewegt, bei welcher weniger Makulatur (60) erzeugt wird, als durch einen Grenzwert für Makulatur festgelegt.Device according to claim 7,
characterized,
in that the drive moves the at least one printing module and / or the at least one guide element at a speed at which less waste (60) is generated than determined by a waste paper limit.
dadurch gekennzeichnet,
dass sich der Wirkbereich der Druckeinrichtung aus den Wirkbereichen (21, 22, 23) der Druckmodule zusammensetzt.Device according to one of the preceding claims,
characterized,
in that the effective range of the printing device is composed of the active regions (21, 22, 23) of the printing modules.
dadurch gekennzeichnet,
dass die Relativbewegung eine Bewegung entlang wenigstens der Wirkbereiche von zwei Druckmodulen ist.Device according to claim 9,
characterized,
that the relative movement is a movement along at least the active regions of two printing modules.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102016209280.4A DE102016209280A1 (en) | 2016-05-30 | 2016-05-30 | Device for printing a web of printing material |
Publications (2)
Publication Number | Publication Date |
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EP3251859A1 true EP3251859A1 (en) | 2017-12-06 |
EP3251859B1 EP3251859B1 (en) | 2020-09-02 |
Family
ID=58606097
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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EP17167458.3A Active EP3251859B1 (en) | 2016-05-30 | 2017-04-21 | Device for printing a web to be printed |
Country Status (3)
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EP (1) | EP3251859B1 (en) |
CN (1) | CN107443928B (en) |
DE (1) | DE102016209280A1 (en) |
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CN108819495B (en) * | 2018-04-02 | 2020-09-11 | 付灵 | Product management method and system in glass processing process and use method |
CN111976310B (en) * | 2020-08-28 | 2021-07-13 | 重庆久丰印务有限公司 | Full-automatic high-efficiency rotary curved surface digital ink-jet printer |
DE102021132015B3 (en) | 2021-12-06 | 2023-03-30 | Canon Production Printing Holding B.V. | Device for printing a recording medium |
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ES2042280T3 (en) * | 1989-03-08 | 1993-12-01 | Siemens Nixdorf Informationssysteme Aktiengesellschaft | PRINTING DEVICE WITH AT LEAST TWO PRINTING STATIONS SPECIALLY SEPARATED BETWEEN THEM. |
FR2713989B1 (en) * | 1993-12-21 | 1996-01-12 | Nipson | Printer with high printing speed and uses of such a printer. |
DE102015205105B4 (en) * | 2015-03-20 | 2019-09-12 | Koenig & Bauer Ag | Roller printing machine |
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2016
- 2016-05-30 DE DE102016209280.4A patent/DE102016209280A1/en not_active Withdrawn
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- 2017-05-25 CN CN201710380717.7A patent/CN107443928B/en active Active
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US5878320A (en) | 1997-09-30 | 1999-03-02 | Xerox Corporation | Continuous imaging of a continuous web substrate with a single print engine with a photoreceptor belt seam |
US20010021331A1 (en) * | 2000-01-04 | 2001-09-13 | Brewington James Gabriel | Duplex check printer using a print mechanism pivoted between document paths |
US20060028524A1 (en) * | 2004-08-04 | 2006-02-09 | Fuji Xerox Co., Ltd. | Recording apparatus |
JP2011143628A (en) * | 2010-01-15 | 2011-07-28 | Seiko Epson Corp | Printing method of recording paper and perfecting printer |
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Also Published As
Publication number | Publication date |
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DE102016209280A1 (en) | 2017-11-30 |
CN107443928B (en) | 2020-08-18 |
EP3251859B1 (en) | 2020-09-02 |
CN107443928A (en) | 2017-12-08 |
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