EP2939839A1 - Multipass digital printing device - Google Patents

Multipass digital printing device Download PDF

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Publication number
EP2939839A1
EP2939839A1 EP15001268.0A EP15001268A EP2939839A1 EP 2939839 A1 EP2939839 A1 EP 2939839A1 EP 15001268 A EP15001268 A EP 15001268A EP 2939839 A1 EP2939839 A1 EP 2939839A1
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EP
European Patent Office
Prior art keywords
table plate
printing
digital printing
multipass
pressure
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
Application number
EP15001268.0A
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German (de)
French (fr)
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EP2939839B1 (en
Inventor
Marko Möller
Volkmar Krato
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Wemhoener Surface Technologies GmbH and Co KG
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Wemhoener Surface Technologies GmbH and Co KG
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Publication of EP2939839A1 publication Critical patent/EP2939839A1/en
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Publication of EP2939839B1 publication Critical patent/EP2939839B1/en
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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
    • B41J3/28—Typewriters or selective printing or marking mechanisms characterised by the purpose for which they are constructed for printing downwardly on flat surfaces, e.g. of books, drawings, boxes, envelopes, e.g. flat-bed ink-jet printers
    • 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
    • B41J11/00—Devices or arrangements  of selective printing mechanisms, e.g. ink-jet printers or thermal printers, for supporting or handling copy material in sheet or web form
    • B41J11/0015—Devices or arrangements  of selective printing mechanisms, e.g. ink-jet printers or thermal printers, for supporting or handling copy material in sheet or web form for treating before, during or after printing or for uniform coating or laminating the copy material before or after printing
    • B41J11/002—Curing or drying the ink on the copy materials, e.g. by heating or irradiating
    • B41J11/0024—Curing or drying the ink on the copy materials, e.g. by heating or irradiating using conduction means, e.g. by using a heated platen
    • 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

Definitions

  • the invention relates to a multipass digital printing device according to the preamble of the first claim.
  • a device for printing sheet-like or ribbon-shaped film or paper material has in a printing area a plurality of parallel to each other and transversely to the direction of passage of the material to be printed on movable printheads.
  • DE 693 16 432 T2 which is formed as a single-pass printing device, a heating device is provided below the printing area to accelerate the drying of the ink.
  • the object of the invention is to provide a multipass digital printing device that is further improved over the known printing system and whose print quality and cost-effectiveness is further improved.
  • the inventive multipass digital printing device is equipped with a printing plate, which is longer than the actual printing section of the multipass digital printing process to be printed material is long, wherein the extended Section is arranged in front of the pressure area and forms an inlet section.
  • the heated printing table plate thus allows the film or paper material to be printed even before printing on a relative to the Ambient temperature to bring raised temperature, so that the applied moisture during printing accelerated back out of the material can be removed, so that the production speed can be further increased. Furthermore, the preheated material improves the printing result.
  • the printing table plate is formed longer by the length of a passport width, so that the entire total area to be printed on a first pass can be homogeneously preheated as a whole, as a result of which improved printing results can be achieved.
  • planar planar pressure plate is in one preferred embodiment, in one piece, but at least formed with a continuous surface, so that the film or paper material on the entire printing table plate flat and can rest without this undesirable elevations or faults may occur.
  • the pressure table plate is equipped in its sections with separately controllable heaters, which allows the temperature in the inlet section optionally higher, equal to or lower than to preselect in the pressure section, where they at about a higher-adjusted inlet temperature, the films - or paper material can raise faster to the desired temperature in the printing section, which is just after the further transport of the film or paper material in the area of the first pass, exactly or at most slightly exceeded, whereas at a same temperature of the pressure table plate in the inlet section as the in the printing section ensures that the temperature of the film or paper material in the printing section is not too high fails, resulting in safe operation of the multipass digital printing device.
  • the pressure table plate is made in one piece from metal, wherein the pressure section of the inlet section via a arranged there from the underside of its support surface groove which extends to just below the support surface, is thermally largely separated, so that a deviating to the inlet section tempered pressure section has no influence exerts on the pressure section.
  • the pressure table plate is preferably mounted on an insulating plate, between which and the pressure plate plate a balancing membrane is arranged in order to completely avoid thermal stresses in the entire printing table from the outset can.
  • the insulating plate is designed to be longer than the pressure table plate and provided in the direction of passage of the material front and rear on their supernatant with arrival and runners, so that the upstream and downstream device components can remain unaffected by the tempered pressure table plate.
  • the printing table plate could also be formed in the printing section in register width with sub-sections of different temperature, which could likewise be thermally separated from one another via bottom-side grooves.
  • the printing table 5 of the multipass digital printing apparatus consists of a flat planar printing table plate 6 with a printing section 7, via which the printing heads 3, 4 are arranged to travel in a multipass process perpendicular to the plane of the paper and from an inlet section 8, in which an incoming film direction in the transport direction. or paper material 1 is preheated by means disposed in the pressure plate plate 6 heater 10, which can be maintained in the pressure section 7 of the pressure table plate 6 via a further heater 11, 17 at a desired temperature.
  • the mutually parallel printheads 3, 4 are arranged offset from one another so that in the edge regions of their passport widths 9, a superimposing zone 19 of the overlapping partial printing areas forms and the printed images are superimposed mutually superimposed printable, so that visible print margins in the final total print image can be completely avoided.
  • This overlay zone 19 can advantageously be formed separately temperature controlled by a separate heater 18 in the pressure table plate 6.
  • the pressure table plate 6 is designed in one piece and has between the pressure section 7 and inlet section 8 a groove 16 arranged from below, the two sections 7, 8 largely thermally insulated from each other.
  • the pressure table plate 6 rests on a compensating diaphragm 13 on an insulating plate 12 which extends below the pressure table plate 6 and there there are run-up and downpipes 14, 15, which are seconded before the inlet section 8 and behind the pressure section 7 and record the printing plate 6 ,
  • Zeichnerisch not shown is a printing table plate 6, which is divided in the printing section 7 divided into pass width and different temperature subsections.

Abstract

Es wird eine Multipass-Digitaldruckvorrichtung zum Bedrucken von bogen- oder bandförmigem Folien- oder Papiermaterial (1) mit einem Druckbereich mit mehreren parallel zueinander und quer zur Durchlaufrichtung (2) des Materials (1) bewegbaren Druckköpfen (3;4) und einem darunter angeordneten beheizbaren Drucktisch (5) mit einer planen ebenen Drucktischplatte (6) zur Verfügung gestellt, die gegenüber bekannten Drucksystemen in Bezug auf deren Druckqualität und Wirtschaftlichkeit weiter verbessert ist, was dadurch erzielt wird, dass die Drucktischplatte (6) länger ausgebildet ist, als ein gesamter Druckabschnitt (7) des zu bedruckenden Materials (1) lang ist und der verlängerte Abschnitt vor dem Druckbereich, einen Einlaufabschnitt (8) bildend, angeordnet ist.The invention relates to a multipass digital printing apparatus for printing on sheet or strip-shaped film or paper material (1) having a printing area with a plurality of print heads (3; 4) movable parallel to one another and transversely to the direction of passage (2) of the material (1) and one below heated printing table (5) provided with a flat planar printing table plate (6), which is compared to known printing systems in terms of print quality and efficiency further improved, which is achieved in that the pressure table plate (6) is formed longer than a whole Printing section (7) of the material to be printed (1) is long and the extended portion before the pressure region, an inlet portion (8) forming, is arranged.

Description

Die Erfindung betrifft eine Multipass-Digitaldruckvorrichtung gemäß dem Oberbegriff des ersten Patentanspruches. Eine solche Vorrichtung zum Bedrucken von bogen- oder bandförmigem Folien- oder Papiermaterial weist in einem Druckbereich mehrere parallel zueinander und quer zur Durchlaufrichtung des zu bedruckenden Materials bewegbare Druckköpfe auf.The invention relates to a multipass digital printing device according to the preamble of the first claim. Such a device for printing sheet-like or ribbon-shaped film or paper material has in a printing area a plurality of parallel to each other and transversely to the direction of passage of the material to be printed on movable printheads.

Bei einem bekannten Drucksystem, DE 693 16 432 T2 , welches als Singlepass-Druckvorrichtung ausgebildet ist, ist unter dem Druckbereich eine Heizvorrichtung vorgesehen, um das Trocknen der Tinte zu beschleunigen.In a known printing system, DE 693 16 432 T2 , which is formed as a single-pass printing device, a heating device is provided below the printing area to accelerate the drying of the ink.

Aufgabe der Erfindung ist es, eine Multipass-Digitaldruckvorrichtung zur Verfügung zu stellen, die gegenüber dem bekannten Drucksystem weiter verbessert ist und dessen Druckqualität und Wirtschaftlichkeit weiter verbessert ist.The object of the invention is to provide a multipass digital printing device that is further improved over the known printing system and whose print quality and cost-effectiveness is further improved.

Die Lösung dieser Aufgabe erfolgt in Verbindung mit den Merkmalen des Oberbegriffs erfindungsgemäß dadurch, dass die erfinderische Multipass-Digitaldruckvorrichtung mit einer Drucktischplatte ausgestattet ist, die länger ausgebildet ist, als der eigentliche Druckabschnitt des im Multipass-Digitaldruckverfahren zu bedruckenden Materials lang ist, wobei der verlängerte Abschnitt vor dem Druckbereich angeordnet ist und einen Einlaufabschnitt bildet.The solution of this object is achieved in conjunction with the features of the preamble according to the invention, characterized in that the inventive multipass digital printing device is equipped with a printing plate, which is longer than the actual printing section of the multipass digital printing process to be printed material is long, wherein the extended Section is arranged in front of the pressure area and forms an inlet section.

Die beheizte Drucktischplatte erlaubt es demnach das zu bedruckende Folien- oder Papiermaterial schon vor dem Bedrucken auf eine gegenüber der Umgebungstemperatur angehobene Temperatur zu bringen, wodurch die beim Druckvorgang aufgebrachte Feuchtigkeit beschleunigt wieder aus dem Material entfernt werden kann, sodass sich die Produktionsgeschwindigkeit weiter steigern lässt. Des Weiteren verbessert das vorerwärmte Material das Druckergebnis.The heated printing table plate thus allows the film or paper material to be printed even before printing on a relative to the Ambient temperature to bring raised temperature, so that the applied moisture during printing accelerated back out of the material can be removed, so that the production speed can be further increased. Furthermore, the preheated material improves the printing result.

Gemäß einer besonders bevorzugten Ausführungsform der Erfindung ist die Drucktischplatte um die Länge einer Passbreite länger ausgebildet, sodass bereits die gesamte bei einem ersten Pass zu bedruckenden Fläche insgesamt homogen vorgewärmt werden kann, wodurch verbesserte Druckergebnisse erzielt werden können.According to a particularly preferred embodiment of the invention, the printing table plate is formed longer by the length of a passport width, so that the entire total area to be printed on a first pass can be homogeneously preheated as a whole, as a result of which improved printing results can be achieved.

Die plane ebene Drucktischplatte ist bei einer bevorzugten Ausführungsform einteilig, zumindest aber mit einer durchgehenden Oberfläche ausgebildet, sodass das Folien- oder Papiermaterial auf der gesamten Drucktischplatte plan und eben aufliegen kann, ohne dass hier unerwünschte Erhebungen oder Verwerfungen auftreten können.The planar planar pressure plate is in one preferred embodiment, in one piece, but at least formed with a continuous surface, so that the film or paper material on the entire printing table plate flat and can rest without this undesirable elevations or faults may occur.

Entsprechend einer besonders bevorzugten Ausführungsform des Gegenstandes der Erfindung ist die Drucktischplatte in ihren Abschnitten mit separat ansteuerbaren Heizungen ausgestattet, was es erlaubt, die Temperatur im Einlaufabschnitt wahlweise höher, gleich oder niedriger als im Druckabschnitt vorzuwählen, wobei sie etwa bei einer höher eingeregelten Einlauftemperatur das Folien- oder Papiermaterial schneller auf die im Druckabschnitt gewünschte Temperatur anheben kann, die nach dem Weitertransport des Folien- oder Papiermaterials in den Bereich des ersten Passes gerade noch nicht, genau oder höchstens geringfügig überschritten ist, wohingegen bei einer gleichen Temperatur der Drucktischplatte im Einlaufabschnitt wie der im Druckabschnitt sichergestellt wird, dass die Temperatur des Folien- oder Papiermaterials im Druckabschnitt nicht zu hoch ausfällt, was zu einem sicheren Betrieb der Multipass-Digitaldruckvorrichtung führt.According to a particularly preferred embodiment of the subject matter of the invention, the pressure table plate is equipped in its sections with separately controllable heaters, which allows the temperature in the inlet section optionally higher, equal to or lower than to preselect in the pressure section, where they at about a higher-adjusted inlet temperature, the films - or paper material can raise faster to the desired temperature in the printing section, which is just after the further transport of the film or paper material in the area of the first pass, exactly or at most slightly exceeded, whereas at a same temperature of the pressure table plate in the inlet section as the in the printing section ensures that the temperature of the film or paper material in the printing section is not too high fails, resulting in safe operation of the multipass digital printing device.

Bevorzugterweise ist die Drucktischplatte einteilig aus Metall gefertigt, wobei der Druckabschnitt von dem Einlaufabschnitt über eine von der Unterseite seiner Auflagefläche dort angeordnete Nut, die sich bis kurz unter die Auflagerfläche erstreckt, thermisch weitgehend getrennt ausgebildet ist, sodass ein zum Einlaufabschnitt abweichend temperierter Druckabschnitt keinen Einfluss auf den Druckabschnitt ausübt.Preferably, the pressure table plate is made in one piece from metal, wherein the pressure section of the inlet section via a arranged there from the underside of its support surface groove which extends to just below the support surface, is thermally largely separated, so that a deviating to the inlet section tempered pressure section has no influence exerts on the pressure section.

Gegen einen Wärmeverlust ist die Drucktischplatte bevorzugt auf einer Isolierplatte gelagert, wobei zwischen dieser und der Drucktischplatte eine Ausgleichsmembrane angeordnet ist, um Wärmespannungen in dem gesamten Drucktisch von vorneherein vollständig vermeiden zu können.Against a heat loss, the pressure table plate is preferably mounted on an insulating plate, between which and the pressure plate plate a balancing membrane is arranged in order to completely avoid thermal stresses in the entire printing table from the outset can.

Vorteilhafterweise ist die Isolierplatte dabei länger ausgebildet als die Drucktischplatte und in Durchlaufrichtung des Materials vorne und hinten auf ihren Überständen mit An- und Ablaufkufen versehen, sodass die vor- und nachgeschalteten Vorrichtungsbauteile von dem temperierten Drucktischplatte unbeeinflusst bleiben können.Advantageously, the insulating plate is designed to be longer than the pressure table plate and provided in the direction of passage of the material front and rear on their supernatant with arrival and runners, so that the upstream and downstream device components can remain unaffected by the tempered pressure table plate.

Die Drucktischplatte könnte bei einer weiteren vorteilhaften Ausführungsform auch im Druckabschnitt in Passbreite mit unterschiedlich temperierbaren Unterabschnitten ausgebildet sein, die ebenfalls über bodenseitige Nuten von einander thermisch getrennt sein könnten.In a further advantageous embodiment, the printing table plate could also be formed in the printing section in register width with sub-sections of different temperature, which could likewise be thermally separated from one another via bottom-side grooves.

Nachfolgend ist ein Ausführungsbeispiel der Erfindung anhand einer Skizze näher beschrieben. Es zeigt:

  • Fig. 1 einen Drucktisch in Seitenansicht.
Hereinafter, an embodiment of the invention is described in detail with reference to a sketch. It shows:
  • Fig. 1 a printing table in side view.

Der Drucktisch 5 der Multipass-Digitaldruckvorrichtung besteht aus einer planen ebenen Drucktischplatte 6 mit einem Druckabschnitt 7, über den die Druckköpfe 3;4 im Multipass-Verfahren senkrecht zur Papierebene verfahrend angeordnet sind und aus einem Einlaufabschnitt 8, in dem ein in Transportrichtung einlaufendes Folien- oder Papiermaterial 1 über eine in der Drucktischplatte 6 angeordnete Heizung 10 vorgewärmt wird, welches im Druckabschnitt 7 der Drucktischplatte 6 über eine weitere Heizung 11;17 auf einer gewünschten Temperatur gehalten werden kann.The printing table 5 of the multipass digital printing apparatus consists of a flat planar printing table plate 6 with a printing section 7, via which the printing heads 3, 4 are arranged to travel in a multipass process perpendicular to the plane of the paper and from an inlet section 8, in which an incoming film direction in the transport direction. or paper material 1 is preheated by means disposed in the pressure plate plate 6 heater 10, which can be maintained in the pressure section 7 of the pressure table plate 6 via a further heater 11, 17 at a desired temperature.

Die zueinander parallelen Druckköpfe 3;4 sind dabei gegeneinander so versetzt angeordnet, dass sich in den Randbereichen ihrer Passbreiten 9 eine Überlagerungszone 19 der sich überschneidenden Teildruckbereiche bildet und die Druckbilder randseitig gegenseitig überlagert ausdruckbar sind, sodass sichtbare Druckränder im endgültigen Gesamtdruckbild vollständig vermieden werden können. Diese Überlagerungszone 19 kann vorteilhafterweise von einer separaten Heizung 18 in der Drucktischplatte 6 separat temperierbar ausgebildet sein.The mutually parallel printheads 3, 4 are arranged offset from one another so that in the edge regions of their passport widths 9, a superimposing zone 19 of the overlapping partial printing areas forms and the printed images are superimposed mutually superimposed printable, so that visible print margins in the final total print image can be completely avoided. This overlay zone 19 can advantageously be formed separately temperature controlled by a separate heater 18 in the pressure table plate 6.

Die Drucktischplatte 6 ist dabei einteilig ausgeführt und weist zwischen Druckabschnitt 7 und Einlaufabschnitt 8 eine von unten angeordnete Nut 16 auf, die beide Abschnitte 7;8 weitgehend thermisch voneinander isoliert.The pressure table plate 6 is designed in one piece and has between the pressure section 7 and inlet section 8 a groove 16 arranged from below, the two sections 7, 8 largely thermally insulated from each other.

Die Drucktischplatte 6 liegt über eine Ausgleichsmembrane 13 auf einer Isolierplatte 12 auf, die sich unter der Drucktischplatte 6 hervor erstreckt und dort Anlauf- und Ablaufkufen 14;15 aufweist, die vor dem Einlaufabschnitt 8 und hinter dem Druckabschnitt 7 abgeordnet sind und die Drucktischplatte 6 aufnehmen.The pressure table plate 6 rests on a compensating diaphragm 13 on an insulating plate 12 which extends below the pressure table plate 6 and there there are run-up and downpipes 14, 15, which are seconded before the inlet section 8 and behind the pressure section 7 and record the printing plate 6 ,

Zeichnerisch nicht dargestellt ist eine Drucktischplatte 6, die auch im Druckabschnitt 7 in Passbreite unterteilte und unterschiedlich temperierbare Unterabschnitte aufgeteilt ist.Zeichnerisch not shown is a printing table plate 6, which is divided in the printing section 7 divided into pass width and different temperature subsections.

Claims (10)

Multipass-Digitaldruckvorrichtung zum Bedrucken von bogen- oder bandförmigem Folien- oder Papiermaterial (1) mit einem Druckbereich mit mehreren parallel zueinander und quer zur Durchlaufrichtung (2) des Materials (1) bewegbaren Druckköpfen (3;4) und einem darunter angeordneten beheizbaren Drucktisch mit einer planen ebenen Drucktischplatte (6), dadurch gekennzeichnet, dass die Drucktischplatte (6) länger ausgebildet ist, als ein gesamter Druckabschnitt (7) des zu bedruckenden Materials (1) lang ist und der verlängerte Abschnitt vor dem Druckbereich, einen Einlaufabschnitt (8) bildend, angeordnet ist.Multipass digital printing device for printing sheet-like or ribbon-shaped film or paper material (1) having a printing area with a plurality of parallel to each other and transversely to the direction of passage (2) of the material (1) movable printheads (3; 4) and arranged underneath a heated printing table with a flat planar printing table plate (6), characterized in that the printing table plate (6) is formed longer than an entire printing section (7) of the material to be printed (1) is long and the extended portion before the printing area, an inlet section (8) forming, is arranged. Multipass-Digitaldruckvorrichtung nach Anspruch 1, dadurch gekennzeichnet, dass die Drucktischplatte (6) um die Länge einer Passbereite (9) länger ausgebildet ist.Multipass digital printing apparatus according to claim 1, characterized in that the pressure table plate (6) is designed to be longer by the length of a passport (9). Multipass-Digitaldruckvorrichtung nach einem der vorgenannten Ansprüche, dadurch gekennzeichnet, dass die Drucktischplatte (6) einteilig, zumindest mit durchgehender Oberfläche, ausgebildet ist.Multipass digital printing device according to one of the preceding claims, characterized in that the pressure table plate (6) is integrally formed, at least with a continuous surface. Multipass-Digitaldruckvorrichtung nach einem der vorgenannten Ansprüche, dadurch gekennzeichnet, dass die Drucktischplatte (6) in ihren Abschnitten (7,8) mit separat ansteuerbaren Heizungen (10;11;17;18) ausgebildet ist.Multipass digital printing device according to one of the preceding claims, characterized in that the pressure table plate (6) in its sections (7,8) with separately controllable heaters (10; 11; 17; 18) is formed. Multipass-Digitaldruckvorrichtung nach Anspruch 4, dadurch gekennzeichnet, dass die Temperatur im Einlaufabschnitt (8) höher, gleich oder niedriger als im Druckabschnitt (7) eingeregelt ist.Multipass digital printing apparatus according to claim 4, characterized in that the temperature in the inlet section (8) higher, equal or lower than in the pressure section (7) is adjusted. Multipass-Digitaldruckvorrichtung nach einem der vorgenannten Ansprüche, dadurch gekennzeichnet, dass bei einer einteilig aus Metall gefertigten Drucktischplatte (6) der Druckabschnitt (7) von dem Einlaufabschnitt (8) über eine von der Gegenseite seiner Auflagerfläche eingebrachten Nut (16), die sich bis kurz unter die Auflagerfläche erstreckt, thermisch weitestgehend getrennt ausgebildet ist.Multipass digital printing apparatus according to one of the preceding claims, characterized in that in a one-piece made of metal pressure table plate (6) of the inlet section (8) via an introduced from the opposite side of its support surface groove (16), which extends to extends short under the support surface, thermally formed largely separated. Multipass-Digitaldruckvorrichtung nach einem der vorgenannten Ansprüche, dadurch gekennzeichnet, dass die Drucktischplatte (6) auf einer Isolierplatte (12) gelagert ist und zwischen Drucktischplatte (6) und der Isolierplatte (12) eine Ausgleichsmembrane (13) angeordnet ist.Multipass digital printing apparatus according to one of the preceding claims, characterized in that the pressure table plate (6) is mounted on an insulating plate (12) and between the pressure table plate (6) and the insulating plate (12) a compensation membrane (13) is arranged. Multipass-Digitaldruckvorrichtung nach Anspruch 7, dadurch gekennzeichnet, dass die Isolierplatte (12) länger ausgebildet ist als die Drucktischplatte (6) und sie in Durchlaufrichtung des Materials (1) vorne und hinten darüber hervorsteht, wobei auf dem Überstand jeweils eine An- und Ablaufkufe (14,15) darauf angeordnet ist, die ebenfalls aus einem thermischen Isolationsmaterial besteht.Multipass digital printing apparatus according to claim 7, characterized in that the insulating plate (12) is formed longer than the pressure table plate (6) and it protrudes in the direction of passage of the material (1) front and rear about it, wherein on the supernatant in each case an inlet and outlet runner (14,15) is arranged thereon, which also consists of a thermal insulation material. Multipass-Digitaldruckvorrichtung nach einem der vorgenannten Ansprüche, dadurch gekennzeichnet, dass die Drucktischplatte (6) in ihren Druckabschnitt (7) mit separat temperierbaren Unterabschnitten ausgebildet ist.Multipass digital printing device according to one of the preceding claims, characterized in that the pressure table plate (6) is formed in its pressure section (7) with separately temperature-controllable subsections. Multipass-Digitaldruckvorrichtung nach einem der vorgenannten Ansprüche, dadurch gekennzeichnet, dass die zueinander parallelen Druckköpfe (3;4) gegeneinander versetzt, mit in den Randbereichen ihrer Passbreiten (9) sich in einer Überlagerungszone (19) überschneidenden Teildruckbereichen angeordnet und die Druckbilder randseitig gegenseitig überlagert ausdruckbar sind.Multipass digital printing device according to one of the preceding claims, characterized in that the mutually parallel print heads (3; 4) offset from each other, arranged in the edge regions of their passport widths (9) in a superimposing zone (19) overlapping partial pressure areas and the print images on the edge mutually superimposed are printable.
EP15001268.0A 2014-04-29 2015-04-29 Multipass digital printing device Active EP2939839B1 (en)

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DE102014106016.4A DE102014106016B4 (en) 2014-04-29 2014-04-29 Multipass digital printing device

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EP2939839B1 (en) 2019-10-23
ES2765526T3 (en) 2020-06-09
DE102014106016A1 (en) 2015-11-12
DE102014106016B4 (en) 2021-03-11

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