[go: up one dir, main page]
More Web Proxy on the site http://driver.im/

EP2042316B1 - Powder device - Google Patents

Powder device Download PDF

Info

Publication number
EP2042316B1
EP2042316B1 EP08105260A EP08105260A EP2042316B1 EP 2042316 B1 EP2042316 B1 EP 2042316B1 EP 08105260 A EP08105260 A EP 08105260A EP 08105260 A EP08105260 A EP 08105260A EP 2042316 B1 EP2042316 B1 EP 2042316B1
Authority
EP
European Patent Office
Prior art keywords
powder
nozzles
nozzle
row
powder nozzles
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
EP08105260A
Other languages
German (de)
French (fr)
Other versions
EP2042316A2 (en
EP2042316A3 (en
Inventor
Ulrich Fellenberg
Claudius Haas
Reiner Haas
Peter Dr. Hachmann
Reiner Götz
Bernd Herrmann
Bernhard Kaufmann
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Heidelberger Druckmaschinen AG
Original Assignee
Heidelberger Druckmaschinen AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=40260553&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP2042316(B1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Heidelberger Druckmaschinen AG filed Critical Heidelberger Druckmaschinen AG
Publication of EP2042316A2 publication Critical patent/EP2042316A2/en
Publication of EP2042316A3 publication Critical patent/EP2042316A3/en
Application granted granted Critical
Publication of EP2042316B1 publication Critical patent/EP2042316B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F23/00—Devices for treating the surfaces of sheets, webs, or other articles in connection with printing
    • B41F23/04—Devices for treating the surfaces of sheets, webs, or other articles in connection with printing by heat drying, by cooling, by applying powders
    • B41F23/06—Powdering devices, e.g. for preventing set-off

Definitions

  • Powder devices have different requirements. They should pollinate the sheets without gaps and do not interfere with the sheet travel.
  • DE-PS 602 762 An apparatus for spraying freshly printed sheets is described, the nozzles of which are arranged offset in two or more rows to one another such that the SprühgutstMail resulting on the sheet overlap each other somewhat at their edges.
  • this device is able to effect a complete pollination of the sheet, but not without affecting the sheet running.
  • the invention is therefore based on the object to provide a powder device which has favorable constructive conditions with respect to a complete pollination of the sheet without affecting the sheet travel.
  • the powder device according to the invention of a printing press comprises a first powder nozzle row with first powder nozzles and a second powder nozzle row with second powder nozzles. At least one of the second powder nozzles is seen in the conveying direction of the sheet at least partially disposed between two mutually adjacent powder nozzles of the first powder nozzle row, wherein between the first powder nozzle and the second powder nozzle row in the sheet travel direction to be measured nozzle row spacing and wherein the nozzle row spacing at least is half of a between the powder holes of the first powder nozzles and the second powder nozzles and the pressure sheet to be powdered nozzle effective distance is.
  • the at least one of the second powder nozzles either has no overlap with the two adjacent powder nozzles of the first powder nozzle row or with one of these two powder nozzles has only an incomplete overlap.
  • said second powder nozzle can be arranged such that its one half is overlapped by one of the two adjacent first powder nozzles and its other half is overlapped by the gap between the two adjacent first powder nozzles.
  • the first powder nozzle row and the second powder nozzle row are arranged one behind the other in the sheet running direction, so that there is a nozzle row spacing to be measured in the sheet running direction between the first powder nozzle row and the second powder nozzle row.
  • the nozzle row spacing does not have to be the length of a linear range in all cases. If the powder nozzle rows are arranged along the circumferential line of a drum to be powdered or supported, the nozzle row spacing is measured as the length of the imaginary arc bounded by the two powder nozzle rows and concentric with the circumference of the drum.
  • the nozzle row spacing is thus at least half of a nozzle effective distance existing between openings of the powder nozzles of the first powder nozzle row and the second row of powder nozzles and the print sheet to be powdered.
  • the distance between the first Powder nozzle row and the second powder nozzle row is therefore at least half the distance between the respective powder nozzle or its mouth and the sheet to be powdered.
  • the number of rows of nozzles provides a design prerequisite for comparatively large gaps between the powder nozzles of the respective row of powder nozzles.
  • the drag flow entrained by the sheet to be powdered can flow through said gaps without accumulating, so that the risk of flapping movements of the sheet caused by accumulated drag flow is averted.
  • An additional advantage resulting from the number of nozzle rows can be seen in the larger-area distribution of the pneumatic force exerted on the printed sheet by the powdering apparatus. Since the local force peaks are much lower than would be the case with a single row of powder nozzles, a wave formation of the printed sheet caused by the pneumatic force of the powder apparatus is avoided.
  • the powder nozzle offset allows such a distribution of the first powder nozzles of the first powder nozzle row and the second powder nozzles of the second powder nozzle row that the second Powder nozzles powder the traces or strips left by the first powder nozzles on the printed sheet or fill with powder.
  • a further second powder nozzle in the conveying direction of the sheet. Accordingly, two powder nozzles of the second row of powder nozzles are arranged, seen in the sheet running direction, at least partially in register with one and the same nozzle gap of the first row of powder nozzles.
  • the powder device comprises a number n (with n ⁇ 2) of powder nozzle rows, to which belong the first powder nozzle row and the second powder nozzle row.
  • the powder nozzles of the respective powder nozzle row produce when powdering the sheet on the latter powder traces.
  • the powder marks are in the direction of sheet travel stretched powder strips whose track width or strip width of various parameters, such. B. the cone angle of the spray jets of the powder nozzles, depends.
  • the sum of the track widths of the powder traces produced by this powder nozzle row on the sheet to be powdered is (80: n)% to (120: n)% of the format width of the sheet.
  • the sum of the track widths of each of these powder nozzle rows should be applied to each row of powder nozzles powdered print sheets produced 20% to 30% of the format width of the printed sheet. This condition is met, for example, if each powder nozzle row comprises a total of 8 powder nozzles, each producing a 2.5 cm wide powder trace on the printing sheet and the format width of the printing sheet is 100 cm.
  • the sum of the track widths of the powder traces is 20 cm, which corresponds to 20% of the 100 cm format width.
  • the nozzle row spacing is according to a development of at least half and at most twice a powder nozzle within the first powder nozzle and the second powder nozzle row each from powder nozzle to adjacent powder nozzle to be measured.
  • the powder nozzle spacing means the distance which most of the powder nozzles of the respective powder nozzle row have relative to the neighboring nozzle.
  • first powder nozzle row and the second powder nozzle row to their successive activation associated with a control device.
  • the activation mentioned is both a switching on of the air ejection and the powder ejection of the respective powder nozzle row as well as switching on the powder ejection with permanent air ejection of the respective powder nozzle row to understand.
  • the respective powder nozzle row ejects neither air nor powder immediately before activation and ejects a powder-air mixture after activation.
  • the respective powder nozzle series ejects only air prior to activation and is added only as a result of the activation of the ejected air of the powder to form the powder-air mixture.
  • the invention also includes a printing press, which comprises a powder device according to the invention or one of the further developments.
  • Fig. 1 shows a printing machine 7 for printing on sheets, which is a lithographic offset printing machine.
  • the printing machine 7 comprises a sheet delivery 8 with a chain conveyor 9, the gripper bars 10 has.
  • the chain conveyor 9 transports the printed sheets 15 past a powdering device 14, which thereby pollinates the printed sheets 15 with powder.
  • the respective printed sheet 15 is held at its front edge by one of the gripper bars 10 of the chain conveyor 9.
  • Fig. 2 shows that the powder device 14 comprises a first powder nozzle row 1 with first powder nozzles 11, a second powder nozzle row 2 with second powder nozzles 12 and a third powder nozzle row 3 with third powder nozzles 13.
  • the Puderdüsengoln 1, 2, 3 are seen in the sheet running direction 4 with a nozzle row spacing b between the first powder nozzle row 1 and the second powder nozzle row 2 and an equally large nozzle row spacing between the second powder nozzle row 2 and the third powder nozzle row 3 arranged successively.
  • the powder nozzle row 1, 2, 3 extend in the horizontal direction and parallel to each other.
  • Each powder nozzle row 1, 2, 3 comprises a traverse 17, on which the respective powder nozzles 11, 12 and 13 are attached.
  • the first second and third powder nozzles 11, 12, 13 are each designed as spray heads, wherein each spray head can have a plurality of nozzle channels each having an outlet opening.
  • first, second and third powder nozzles 11, 12, 13 may be formed as so-called sheath flow nozzles.
  • a sheath-flow nozzle ejects a powder-free sheath flow which encloses the core stream as the sheath or supporting air stream.
  • the core air stream may consist of a plurality of individual streams, each of which is ejected from another of the nozzle channels.
  • the sheath flow may be formed in the manner of an air curtain of several individual streams.
  • the first, second and third powder nozzles 11, 12, 13 are each arranged at a nozzle effective distance a relative to the surface of the printing sheet 15 to be powdered.
  • the nozzle effective distance a is based on the powder ejection orifice of the respective powder nozzle and in the direction perpendicular to the arc surface to measure.
  • the Puderdüsen #2n 1, 2, 3 are equipped with the same even number of powder nozzles - in the example shown there are eight powder nozzles.
  • the printing sheet 15 has a format width B.
  • the first, second and third powder nozzles 11, 12, 13 are each arranged symmetrically distributed relative to the center of this format width B. This is advantageous in terms of a balanced loading of the sheet by the pneumatic forces of the respective powder nozzle row.
  • All the first powder nozzles 11 of the first powder nozzle row 1 are arranged in a specific powder nozzle spacing c relative to their respective adjacent nozzle. Accordingly, said powder nozzle spacing c is also present between the two first powder nozzles 11 closest to the format width center.
  • the second powder nozzles 12 of the second powder nozzle row 2 are in two nozzle groups with the same number of nozzles - in the example shown are the four second powder nozzles 12 - divided. Within each of the two nozzle groups, the second powder nozzles corresponding to the powder nozzle spacing c are arranged uniformly distributed.
  • the nozzle groups are arranged offset away from each other, so that the powder nozzle distance between the two of the format width center closest to the second powder nozzles 12 is greater than the powder nozzle distance c.
  • the third powder nozzles 13 of the third powder nozzle row 3 are in two nozzle groups with the same number of nozzles - in the example shown four third powder nozzles - divided. Within both nozzle groups of the third powder nozzle row, each third powder nozzle 13 has the specific powder nozzle spacing c relative to its neighboring nozzle.
  • the two nozzle groups of the third powder nozzle row 3 are arranged offset from one another in such a way that the third powder nozzles 13 of the third powder nozzle row 3 located closest to the middle of the format width center are present Powder nozzle distance is less than the specific powder nozzle distance c. Due to the nozzle group wise "pulling apart” of the second powder nozzle 2 and the nozzle groups "pushing together" the third powder nozzle 3, the second powder nozzle 2 and the third row of powder nozzles 3 each unevenly large powder nozzle distances, each only between the two of the format width center closest powder nozzles existing Powder nozzle distance differs massively from the constant powder nozzle spacing c of the other powder nozzles of the respective powder nozzle row 2 or 3.
  • the nozzle row spacing b existing between the first powder nozzle row 1 and the second powder nozzle row 2 and between the second powder nozzle row 2 and the third powder nozzle row 3 is at least half the nozzle effective distance a (0.5a ⁇ b).
  • the ratio between the two distances may be selected according to the definition a ⁇ b ⁇ 5a or preferably the definition 1.6a ⁇ b ⁇ 3a.
  • the nozzle row spacing b and the powder nozzle pitch c are preferably dimensioned according to the following definition: 0.5b ⁇ c ⁇ 2b.
  • Each first, second and third powder nozzle 11, 12, 13 produced when powdering the sheet 15 on the latter a powder trace 5 with a certain track width p.
  • Fig. 2 shows that between the powder traces of the third powder nozzles 13 initially powder-free strips are present, which are then covered by the powder traces of the second powder nozzles 12 with powder.
  • the powder marks 5 of the third powder nozzles 13 are not or only in negligible dimensions overlapped by the powder traces of the second powder nozzles 12.
  • the powder traces of the three rows of powder nozzles 1, 2, 3 are joined together substantially "bump on impact". In certain applications, however, an overlap of the powder traces 5 is tolerable.
  • the sheet 15 ruptures during its taking place in the sheet running direction 4 movement from the ambient air, a drag flow 16 with it, which in Fig. 2 symbolically indicated by arrows.
  • the drag flow 16 can flow through the gaps between the beam tufts of the powder nozzles of the respective powder nozzle row unhindered, so that the run of the sheet 15 impairing congestion of the drag flow 16 within the powder device 14 is avoided.
  • the size of the gaps corresponding to the powder nozzle spacing c in turn depends on the number of powder nozzles per row of powder nozzles, this number of powder nozzles advantageously being low due to the comparatively large number of powder nozzle rows 11, 12, 13 of the powder apparatus 14 and due to the transverse offset of the powder nozzles relative to one another from powder nozzle row to powder nozzle row can be held.
  • the powder device 14 is controlled by a control device 6 such that the powder nozzle rows 1, 2, 3 are correlated with the sheet delivery cycle activated and deactivated.
  • each powder nozzle row 1, 2 and 3 is clocked such that it begins during the passage of the printing sheet 15 at its beginning with the powdering and stops at the end of the sheet. Accordingly, the third powder nozzle row 3, the second powder nozzle row 2 and the first powder nozzle row 1 are activated and deactivated in this order mentioned.
  • a delay in relation to the third powder nozzle row 3 activating the second powder nozzle row 2 and with respect to the latter delayed activation of the first powder nozzle row 1 could also be achieved by powder nozzle row to powder nozzle row of different length feed channels 18 for the powder-air mixture.
  • These feed channels 18 may be hose lines.
  • the Lengths of the feed channels 18 may be staggered such that the first powder nozzle row 3 first reached by the print sheet 15 has the shortest feed channel 18 and the last powder nozzle row 1 last reached by the print sheet 15 has the longest feed channel 18.
  • control device 6 activates the powder nozzle rows 1, 2, 3 not only as a function of the presence of the printing sheet 15 to be powdered at a specific location, but also as a function of the respective printing speed and thus sheet transport speed.
  • the switch-off of the powder air can be delayed at low printing speeds and the Zuschaltzeittician the powdered air at higher printing speeds are preferred.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Printing Methods (AREA)
  • Treatment Of Fiber Materials (AREA)
  • Electrostatic Spraying Apparatus (AREA)
  • Coating Apparatus (AREA)
  • Details Or Accessories Of Spraying Plant Or Apparatus (AREA)
  • Nozzles (AREA)

Abstract

The device (14) has two powder nozzle rows (1, 2) with respective powder nozzles (11, 12). The powder nozzles (12) are arranged partially between the adjacent powder nozzles (11) when viewed in a sheet running direction (4). A nozzle row distance (b) to be measured in the sheet running direction, exists between the two nozzle rows. The nozzle row distance amounts to half of a nozzle effective distance (a) between powder nozzle openings of the powder nozzles and a printed sheet (15) to be powdered. A control device (6) for subsequent activation is assigned to the powder nozzle rows.

Description

An Pudervorrichtungen werden verschiedene Anforderungen gestellt. Sie sollen die Druckbogen lückenlos bestäuben und dabei den Bogenlauf nicht beeinträchtigen.Powder devices have different requirements. They should pollinate the sheets without gaps and do not interfere with the sheet travel.

In DE 102004057478 A1 ist eine Pudervorrichtung mit einer Sprühstange beschrieben. Entlang der Sprühstange sind an dieser derart viele Sprühdüsen angeordnet, dass sich deren Puder-Luft-Strahlen auf der Oberfläche des Druckbogens berühren, welcher dadurch lückenlos bestäubt wird. Es hat sich aber herausgestellt, dass der im Wesentlichen geschlossene Pudervorhang, welchen eine derartige Pudervorrichtung erzeugt, den Bogenlauf beeinträchtigt. Der an der Pudervorrichtung vorbei geschleppte Druckbogen reißt eine Schleppströmung mit sich, welche sich an dem Pudervorhang aufstaut, weil sie ihn nicht durchdringen kann. Das Aufstauen der Schleppströmung hat eine lokale Luftdruckerhöhung zur Folge, die den Druckbogen zum Flattern bringt.In DE 102004057478 A1 a powder device is described with a spray bar. Along the spray bar on this so many spray nozzles are arranged, that touch their powder-air-rays on the surface of the sheet, which is thereby dusted gapless. However, it has been found that the substantially closed powder curtain, which produces such a powder device, affects the sheet travel. The sheet of paper dragged past the powdering device entrains a drag flow, which builds up on the powder curtain because it can not penetrate it. The damming of the drag flow results in a local increase in air pressure which causes the signature to flutter.

In DE 19733691 A1 ist eine Pudervorrichtung beschrieben, bei welcher Puderdüsen entlang einer V-förmigen Linie angeordnet sind, um einen ruhigen Bogenlauf zu erreichen. Hierbei ist der Einfluss der Schleppströmung auf dem Bogenlauf noch nicht erkannt worden.In DE 19733691 A1 a powder device is described in which powder nozzles are arranged along a V-shaped line in order to achieve a smooth sheet travel. Here, the influence of the drag flow on the sheet run has not yet been recognized.

DE 10038774 A1 , worin eine nebeneinander angeordnete lonenlüfter aufweisende Pudervorrichtung beschrieben ist, und DE 19751972 A1 , worin eine drei in Bogenlaufrichtung aufeinanderfolgend angeordnete Reihen von Pudergas-Abgabeöffnungen in einer Bogenleiteinrichtung aufweisende Pudervorrichtung beschrieben ist, bilden weiteren Stand der Technik, vermögen jedoch keine hilfreichen Beitrag zur Lösung der aufgeworfenen Probleme zu leisten. DE 10038774 A1 in which a juxtaposed ion fan having powder device is described, and DE 19751972 A1 in which a three successively arranged in the sheet running direction rows of powder gas discharge openings in a sheet guiding device having powder device is described form further prior art, but are unable to make a helpful contribution to solving the problems raised.

In DE-PS 602 762 ist eine Vorrichtung zum Besprühen frisch bedruckter Bogen beschrieben, deren Düsen in zwei oder mehreren Reihen versetzt zueinander derart angeordnet sind, dass die auf dem Druckbogen entstehenden Sprühgutstreifen sich an ihren Rändern einander etwas überdecken.In DE-PS 602 762 An apparatus for spraying freshly printed sheets is described, the nozzles of which are arranged offset in two or more rows to one another such that the Sprühgutstreifen resulting on the sheet overlap each other somewhat at their edges.

Diese Vorrichtung vermag zwar eine lückenlose Bestäubung des Druckbogens zu bewirken, nicht jedoch ohne Beeinträchtigung des Bogenlaufes.Although this device is able to effect a complete pollination of the sheet, but not without affecting the sheet running.

Deshalb liegt der Erfindung die Aufgabe zugrunde, eine Pudervorrichtung zu schaffen, die hinsichtlich einer lückenlosen Bestäubung des Druckbogens ohne Beeinträchtigung des Bogenlaufs günstige konstruktive Voraussetzungen aufweist.The invention is therefore based on the object to provide a powder device which has favorable constructive conditions with respect to a complete pollination of the sheet without affecting the sheet travel.

Diese Aufgabe wird durch eine Pudervorrichtung mit den Merkmalen des Anspruchs 1 gelöst. Die erfindungsgemäße Pudervorrichtung einer Druckmaschine umfasst eine erste Puderdüsenreihe mit ersten Puderdüsen und eine zweite Puderdüsenreihe mit zweiten Puderdüsen. Zumindest eine der zweiten Puderdüsen ist in Förderrichtung des Druckbogens gesehen zumindest teilweise zwischen zwei zueinander benachbarten Puderdüsen der ersten Puderdüsenreihe angeordnet, wobei zwischen der ersten Puderdüsenreihe und der zweiten Puderdüsenreihe ein in Bogenlaufrichtung zu messender Düsenreihenabstand besteht und wobei der Düsenreihenabstand mindestens die Hälfte eines zwischen Puderöffnungen der ersten Puderdüsen und der zweiten Puderdüsen und dem zu bepudernden Druckbogen bestehenden Düsenwirkungsabstandes beträgt.This object is achieved by a powder device with the features of claim 1. The powder device according to the invention of a printing press comprises a first powder nozzle row with first powder nozzles and a second powder nozzle row with second powder nozzles. At least one of the second powder nozzles is seen in the conveying direction of the sheet at least partially disposed between two mutually adjacent powder nozzles of the first powder nozzle row, wherein between the first powder nozzle and the second powder nozzle row in the sheet travel direction to be measured nozzle row spacing and wherein the nozzle row spacing at least is half of a between the powder holes of the first powder nozzles and the second powder nozzles and the pressure sheet to be powdered nozzle effective distance is.

Damit ist gemeint, dass die zumindest eine der zweiten Puderdüsen entweder keine Überlappung mit den zwei zueinander benachbarten Puderdüsen der ersten Puderdüsenreihe aufweist oder mit einer dieser beiden Puderdüsen eine nur unvollständige Überlappung aufweist. Beispielsweise kann besagte zweite Puderdüse derart angeordnet sein, dass ihre eine Hälfte von einer der beiden zueinander benachbarten ersten Puderdüsen überlappt wird und ihre andere Hälfte von der Lücke zwischen den beiden zueinander benachbarten ersten Puderdüsen überlappt wird.This means that the at least one of the second powder nozzles either has no overlap with the two adjacent powder nozzles of the first powder nozzle row or with one of these two powder nozzles has only an incomplete overlap. For example, said second powder nozzle can be arranged such that its one half is overlapped by one of the two adjacent first powder nozzles and its other half is overlapped by the gap between the two adjacent first powder nozzles.

Hierbei wird vorausgesetzt, dass die erste Puderdüsenreihe und die zweite Puderdüsenreihe in Bogenlaufrichtung nacheinander angeordnet sind, so dass zwischen der ersten Puderdüsenreihe und der zweiten Puderdüsenreihe ein in Bogenlaufrichtung zu messender Düsenreihenabstand vorhanden ist. Der Düsenreihenabstand muss nicht in allen Fällen die Länge einer linearen Strecke sein. Falls die Puderdüsenreihen entlang der Umfangslinie einer den zu bepudernden Druckbogen transportierenden oder abstützenden Trommel angeordnet sind, wird der Düsenreihenabstand als Länge des von den beiden Puderdüsenreihen begrenzten und mit der Trommelumfangslinie konzentrischen imaginären Kreisbogens gemessen.In this case, it is assumed that the first powder nozzle row and the second powder nozzle row are arranged one behind the other in the sheet running direction, so that there is a nozzle row spacing to be measured in the sheet running direction between the first powder nozzle row and the second powder nozzle row. The nozzle row spacing does not have to be the length of a linear range in all cases. If the powder nozzle rows are arranged along the circumferential line of a drum to be powdered or supported, the nozzle row spacing is measured as the length of the imaginary arc bounded by the two powder nozzle rows and concentric with the circumference of the drum.

Der Düsenreihenabstand beträgt also mindestens die Hälfte eines zwischen Mündungen der Puderdüsen der ersten Puderdüsenreihe und der zweiten Puderdüsenreihe und dem zu pudernden Druckbogen bestehenden Düsenwirkungsabstandes. Die Entfernung zwischen der ersten Puderdüsenreihe und der zweiten Puderdüsenreihe beträgt demnach mindestens die Hälfte der Entfernung zwischen der jeweiligen Puderdüse bzw. deren Mündung und dem zu bepudernden Druckbogen. In diesem Zusammenhang wird bevorzugt, dass sich die ersten Puderdüsen bezüglich der Größe ihres Düsenwirkungsabstandes nicht voneinander unterscheiden und dass sich die zweiten Puderdüsen bezüglich der Größe ihres Düsenwirkungsabstandes nicht voneinander unterscheiden und dass sich die ersten Puderdüsen bezüglich der Größe des Düsenwirkungsabstandes nicht von den zweiten Puderdüsen unterscheiden.The nozzle row spacing is thus at least half of a nozzle effective distance existing between openings of the powder nozzles of the first powder nozzle row and the second row of powder nozzles and the print sheet to be powdered. The distance between the first Powder nozzle row and the second powder nozzle row is therefore at least half the distance between the respective powder nozzle or its mouth and the sheet to be powdered. In this connection, it is preferred that the first powder nozzles do not differ from one another with respect to the size of their nozzle effective distance and that the second powder nozzles do not differ with respect to the size of their nozzle effective distance and that the first powder nozzles do not differ from the second powder nozzles with respect to the size of the nozzle effective distance ,

Bei der erfindungsgemäßen Pudervorrichtung ist durch die Düsenreihenmehrzahl eine konstruktive Voraussetzung für vergleichsweise große Lücken zwischen den Puderdüsen der jeweiligen Puderdüsenreihe gegeben. Die vom zu bepudernden Druckbogen mitgerissene Schleppströmung kann durch besagte Lücken hindurchströmen, ohne sich aufzustauen, so dass die Gefahr von durch sich aufstauende Schleppströmung verursachter Flatterbewegungen des Druckbogens abgewendet ist. Ein aus der Düsenreihenmehrzahl resultierender Zusatzvorteil ist in der großflächigeren Verteilung der von der Pudervorrichtung auf den Druckbogen ausgeübten pneumatischen Kraft zu sehen. Da die lokalen Kraftspitzen viel geringer sind, als dies bei einer einzigen Puderdüsenreihe der Fall wäre, wird eine durch die pneumatische Kraft der Pudervorrichtung bewirkte Wellenbildung des Druckbogens vermieden. Durch den seitlichen Versatz der Puderdüsen der ersten Puderdüsenreihe und der zweiten Puderdüsenreihe relativ zueinander sind hinsichtlich der lückenlosen Bestäubung des Druckbogens günstige konstruktive Voraussetzungen gegeben. Der Puderdüsenversatz ermöglicht eine derartige Verteilung der ersten Puderdüsen der ersten Puderdüsenreihe und der zweiten Puderdüsen der zweiten Puderdüsenreihe, dass die zweiten Puderdüsen die von den ersten Puderdüsen puderfrei gelassenen Spuren bzw. Streifen auf den Druckbogen bepudern bzw. mit Puder auffüllen.In the case of the powder-dispensing device according to the invention, the number of rows of nozzles provides a design prerequisite for comparatively large gaps between the powder nozzles of the respective row of powder nozzles. The drag flow entrained by the sheet to be powdered can flow through said gaps without accumulating, so that the risk of flapping movements of the sheet caused by accumulated drag flow is averted. An additional advantage resulting from the number of nozzle rows can be seen in the larger-area distribution of the pneumatic force exerted on the printed sheet by the powdering apparatus. Since the local force peaks are much lower than would be the case with a single row of powder nozzles, a wave formation of the printed sheet caused by the pneumatic force of the powder apparatus is avoided. Due to the lateral offset of the powder nozzles of the first powder nozzle row and the second powder nozzle row relative to each other in terms of seamless pollination of the sheet favorable design conditions are given. The powder nozzle offset allows such a distribution of the first powder nozzles of the first powder nozzle row and the second powder nozzles of the second powder nozzle row that the second Powder nozzles powder the traces or strips left by the first powder nozzles on the printed sheet or fill with powder.

In den Unteransprüchen sind vorteilhafte Weiterbildungen der erfindungsgemäßen Druckmaschine genannt, die nachfolgend im Einzelnen erläutert werden.In the dependent claims advantageous developments of the printing press according to the invention are mentioned, which are explained in detail below.

Bei einer Weiterbildung ist in Förderrichtung des Druckbogens gesehen zumindest teilweise zwischen den beiden zueinander benachbarten Puderdüsen der ersten Puderdüsenreihe außer der zumindest einen zweiten Puderdüse eine weitere zweite Puderdüse angeordnet. Demzufolge sind zwei Puderdüsen der zweiten Puderdüsenreihe in Bogenlaufrichtung gesehen zumindest teilweise in Überdeckung mit ein und derselben Düsenlücke der ersten Puderdüsenreihe angeordnet.In a further development, at least partially disposed between the two adjacent powder nozzles of the first powder nozzle row except the at least one second powder nozzle, a further second powder nozzle in the conveying direction of the sheet. Accordingly, two powder nozzles of the second row of powder nozzles are arranged, seen in the sheet running direction, at least partially in register with one and the same nozzle gap of the first row of powder nozzles.

Bei einer weiteren Weiterbildung umfasst die Pudervorrichtung eine Anzahl n (mit n≥2) von Puderdüsenreihen, zu welchen die ersten Puderdüsenreihe und die zweite Puderdüsenreihe gehören. Die Puderdüsen der jeweiligen Puderdüsenreihe erzeugen beim Bepudern des Druckbogens auf letzteren Puderspuren. Die Puderspuren sind sich in Bogenlaufrichtung erstreckte Puderstreifen, deren Spurbreite bzw. Streifenbreite von verschiedenen Parametern, wie z. B. dem Kegelwinkel der Sprühstrahlen der Puderdüsen, abhängt. Für jede vorhandene Puderdüsenreihe gilt, dass die Summe der Spurbreiten der von dieser Puderdüsenreihe auf den zu pudernden Druckbogen erzeugten Puderspuren (80:n)% bis (120:n)% der Formatbreite des Druckbogens beträgt. Umfasst die Pudervorrichtung beispielsweise insgesamt vier Puderdüsenreihen (n = 4) dann soll pro Puderdüsenreihe die Summe der Spurbreiten der von dieser Puderdüsenreihe auf den zu bepudernden Druckbogen erzeugten Puderspuren 20% bis 30% der Formatbreite des Druckbogens betragen. Diese Bedingung ist beispielsweise erfüllt, wenn jede Puderdüsenreihe insgesamt 8 Puderdüsen umfasst, die jeweils eine 2,5 cm breite Puderspur auf dem Druckbogen erzeugen und die Formatbreite des Druckbogens 100 cm beträgt. Pro Puderdüsenreihe beträgt somit die Summe der Spurbreiten der Puderspuren 20 cm, was 20% der 100 cm betragenden Formatbreite entspricht.In a further development, the powder device comprises a number n (with n≥2) of powder nozzle rows, to which belong the first powder nozzle row and the second powder nozzle row. The powder nozzles of the respective powder nozzle row produce when powdering the sheet on the latter powder traces. The powder marks are in the direction of sheet travel stretched powder strips whose track width or strip width of various parameters, such. B. the cone angle of the spray jets of the powder nozzles, depends. For each existing powder nozzle row, the sum of the track widths of the powder traces produced by this powder nozzle row on the sheet to be powdered is (80: n)% to (120: n)% of the format width of the sheet. If, for example, the powdering device comprises a total of four rows of powder nozzles (n = 4), then the sum of the track widths of each of these powder nozzle rows should be applied to each row of powder nozzles powdered print sheets produced 20% to 30% of the format width of the printed sheet. This condition is met, for example, if each powder nozzle row comprises a total of 8 powder nozzles, each producing a 2.5 cm wide powder trace on the printing sheet and the format width of the printing sheet is 100 cm. For each powder nozzle row, the sum of the track widths of the powder traces is 20 cm, which corresponds to 20% of the 100 cm format width.

Der Düsenreihenabstand beträgt gemäß einer Weiterbildung mindestens die Hälfte und höchstens das Doppelte eines innerhalb der ersten Puderdüsenreihe und der zweiten Puderdüsenreihe jeweils von Puderdüse zu benachbarter Puderdüse zu messenden Puderdüsenabstandes. Mit dem Puderdüsenabstand ist jener Abstand gemeint, welchen die meisten Puderdüsen der jeweiligen Puderdüsenreihe relativ zur Nachbardüse aufweisen.The nozzle row spacing is according to a development of at least half and at most twice a powder nozzle within the first powder nozzle and the second powder nozzle row each from powder nozzle to adjacent powder nozzle to be measured. The powder nozzle spacing means the distance which most of the powder nozzles of the respective powder nozzle row have relative to the neighboring nozzle.

Bei einer weiteren Weiterbildung ist der ersten Puderdüsenreihe und der zweiten Puderdüsenreihe zu deren nacheinander erfolgenden Aktivierung eine Steuerungseinrichtung beigeordnet. Unter der erwähnten Aktivierung ist sowohl ein Einschalten des Luftausstoßes und des Puderausstoßes der jeweiligen Puderdüsenreihe als auch ein Einschalten des Puderausstoßes bei permanentem Luftausstoß der jeweiligen Puderdüsenreihe zu verstehen. In dem zuerst genannten Fall stößt die jeweilige Puderdüsenreihe unmittelbar vor ihrer Aktivierung weder Luft noch Puder aus und stößt sie nach ihrer Aktivierung ein Puder-Luft-Gemisch aus. In dem anderen Fall stößt die jeweilige Puderdüsenreihe vor ihrer Aktivierung ausschließlich Luft aus und wird erst infolge der Aktivierung der auszustoßenden Luft der Puder beigemischt, um das Puder-Luft-Gemisch zu bilden.In a further development of the first powder nozzle row and the second powder nozzle row to their successive activation associated with a control device. The activation mentioned is both a switching on of the air ejection and the powder ejection of the respective powder nozzle row as well as switching on the powder ejection with permanent air ejection of the respective powder nozzle row to understand. In the former case, the respective powder nozzle row ejects neither air nor powder immediately before activation and ejects a powder-air mixture after activation. In the other case, the respective powder nozzle series ejects only air prior to activation and is added only as a result of the activation of the ejected air of the powder to form the powder-air mixture.

Zur Erfindung gehört auch eine Druckmaschine, welche eine erfindungsgemäß oder einer der Weiterbildungen entsprechend ausgebildete Pudervorrichtung umfasst.The invention also includes a printing press, which comprises a powder device according to the invention or one of the further developments.

Weitere konstruktiv und funktionell vorteilhafte Weiterbildungen der Erfindung ergeben sich aus der nachfolgenden Beschreibung eines bevorzugten Ausführungsbeispiels und der dazugehörigen Zeichnung.Other constructive and functional advantageous developments of the invention will become apparent from the following description of a preferred embodiment and the accompanying drawings.

In dieser zeigt:In this shows:

Fig. 1Fig. 1
die Gesamtdarstellung einer Druckmaschine mit einer Pudervorrichtung undthe overall view of a printing machine with a powder device and
Fig. 2Fig. 2
die Detaildarstellung der Pudervorrichtung.the detailed representation of the powder device.

Fig. 1 zeigt eine Druckmaschine 7 zum Bedrucken von Bogen, welche eine lithographische Offsetdruckmaschine ist. Die Druckmaschine 7 umfasst einen Bogenausleger 8 mit einem Kettenförderer 9, der Greiferbrücken 10 aufweist. Der Kettenförderer 9 transportiert die Druckbogen 15 an einer Pudervorrichtung 14 vorbei, welche dabei die Druckbogen 15 mit Puder bestäubt. Dabei wird der jeweilige Druckbogen 15 an seiner Vorderkante durch eine der Greiferbrücken 10 des Kettenförderers 9 festgehalten. Fig. 1 shows a printing machine 7 for printing on sheets, which is a lithographic offset printing machine. The printing machine 7 comprises a sheet delivery 8 with a chain conveyor 9, the gripper bars 10 has. The chain conveyor 9 transports the printed sheets 15 past a powdering device 14, which thereby pollinates the printed sheets 15 with powder. In this case, the respective printed sheet 15 is held at its front edge by one of the gripper bars 10 of the chain conveyor 9.

Fig. 2 zeigt, dass die Pudervorrichtung 14 eine erste Puderdüsenreihe 1 mit ersten Puderdüsen 11, eine zweite Puderdüsenreihe 2 mit zweiten Puderdüsen 12 und eine dritte Puderdüsenreihe 3 mit dritten Puderdüsen 13 umfasst. Die Puderdüsenreihen 1, 2, 3 sind in Bogenlaufrichtung 4 gesehen mit einem Düsenreihenabstand b zwischen der ersten Puderdüsenreihe 1 und der zweiten Puderdüsenreihe 2 und einem genauso großen Düsenreihenabstand zwischen der zweiten Puderdüsenreihe 2 und der dritten Puderdüsenreihe 3 nacheinander angeordnet. Die Puderdüsenreihe 1, 2, 3 erstrecken sich in Horizontalrichtung und miteinander parallel. Jede Puderdüsenreihe 1, 2, 3 umfasst eine Traverse 17, an welcher die jeweiligen Puderdüsen 11, 12 bzw. 13 angebracht sind. Fig. 2 shows that the powder device 14 comprises a first powder nozzle row 1 with first powder nozzles 11, a second powder nozzle row 2 with second powder nozzles 12 and a third powder nozzle row 3 with third powder nozzles 13. The Puderdüsenreihen 1, 2, 3 are seen in the sheet running direction 4 with a nozzle row spacing b between the first powder nozzle row 1 and the second powder nozzle row 2 and an equally large nozzle row spacing between the second powder nozzle row 2 and the third powder nozzle row 3 arranged successively. The powder nozzle row 1, 2, 3 extend in the horizontal direction and parallel to each other. Each powder nozzle row 1, 2, 3 comprises a traverse 17, on which the respective powder nozzles 11, 12 and 13 are attached.

Die ersten zweiten und dritten Puderdüsen 11, 12, 13 sind jeweils als Sprühköpfe ausgebildet, wobei jeder Sprühkopf mehrere Düsenkanäle mit jeweils einer Austrittsmündung aufweisen kann.The first second and third powder nozzles 11, 12, 13 are each designed as spray heads, wherein each spray head can have a plurality of nozzle channels each having an outlet opening.

Außerdem können die ersten, zweiten und dritten Puderdüsen 11, 12, 13 als sogenannte Mantelstromdüsen ausgebildet sein. Eine solche Mantelstromdüse stößt außer dem Puder-Luft-Kernstrom einen puderfreien Mantelstrom aus, welcher als Hüll- bzw. Stützluftstrom den Kernstrom einschließt. Bei der bereits erwähnten Ausbildung des Sprühkopfes mit mehreren Düsenkanälen kann der Kernluftstrom aus mehreren Einzelströmen bestehen, von denen jeder aus einem anderen der Düsenkanäle ausgestoßen wird. Ebenso kann der Mantelstrom in der Art eines Luftvorhangs aus mehreren Einzelströmen gebildet sein.In addition, the first, second and third powder nozzles 11, 12, 13 may be formed as so-called sheath flow nozzles. In addition to the powder-air core stream, such a sheath-flow nozzle ejects a powder-free sheath flow which encloses the core stream as the sheath or supporting air stream. In the already mentioned embodiment of the spray head with a plurality of nozzle channels, the core air stream may consist of a plurality of individual streams, each of which is ejected from another of the nozzle channels. Likewise, the sheath flow may be formed in the manner of an air curtain of several individual streams.

Die ersten, zweiten und dritten Puderdüsen 11, 12, 13 sind jeweils in einem Düsenwirkungsabstand a relativ zur zu bepudernden Oberfläche des Druckbogens 15 angeordnet. Der Düsenwirkungsabstand a ist ausgehend von der Puderaustrittsmündung der jeweiligen Puderdüse und in zur Bogenoberfläche senkrechte Richtung zu messen. Die Puderdüsenreihen 1, 2, 3 sind mit der gleichen geradzahligen Anzahl von Puderdüsen - im gezeigten Beispiel sind es jeweils acht Puderdüsen - ausgestattet. Der Druckbogen 15 hat eine Formatbreite B. Die ersten, zweiten und dritten Puderdüsen 11, 12, 13 sind jeweils relativ zur Mitte dieser Formatbreite B symmetrisch verteilt angeordnet. Dies ist hinsichtlich einer ausbalancierten Belastung des Druckbogens durch die pneumatischen Kräfte der jeweiligen Puderdüsenreihe vorteilhaft. Sämtliche erste Puderdüsen 11 der ersten Puderdüsenreihe 1 sind in einen bestimmten Puderdüsenabstand c relativ zu ihrer jeweiligen Nachbardüse angeordnet. Demgemäß ist besagter Puderdüsenabstand c auch zwischen den beiden der Formatbreitenmitte am nächsten gelegenen ersten Puderdüsen 11 vorhanden. Die zweiten Puderdüsen 12 der zweiten Puderdüsenreihe 2 sind in zwei Düsengruppen mit gleicher Düsenanzahl - im gezeigten Beispiel sind das jeweils vier zweite Puderdüsen 12 - untergliedert. Innerhalb jeder der beiden Düsengruppen sind die zweiten Puderdüsen entsprechend dem Puderdüsenabstand c gleichverteilt angeordnet. Die Düsengruppen sind voneinander weg versetzt angeordnet, so dass der Puderdüsenabstand zwischen den beiden der Formatbreitenmitte am nächsten gelegenen zweiten Puderdüsen 12 größer als der Puderdüsenabstand c ist. Auch die dritten Puderdüsen 13 der dritten Puderdüsenreihe 3 sind in zwei Düsengruppen mit gleicher Düsenanzahl - im gezeigten Beispiel jeweils vier dritte Puderdüsen - untergliedert. Innerhalb beider Düsengruppen der dritten Puderdüsenreihe weist jede dritte Puderdüse 13 relativ zu ihrer Nachbardüse den bestimmten Puderdüsenabstand c auf. Die beiden Düsengruppen der dritten Puderdüsenreihe 3 sind derart zueinander hin versetzt angeordnet, dass der zwischen den beiden der Formatbreitenmitte am nächsten gelegenen dritten Puderdüsen 13 der dritten Puderdüsenreihe 3 vorhandene Puderdüsenabstand geringer als der bestimmte Puderdüsenabstand c ist.
Aufgrund des düsengruppenweisen "Auseinanderziehens" der zweiten Puderdüsenreihe 2 und des düsengruppenweisen "Zusammenschiebens" der dritten Puderdüsenreihe 3 weisen die zweite Puderdüsenreihe 2 und die dritte Puderdüsenreihe 3 jeweils ungleichmäßig große Puderdüsenabstände auf, wobei jeweils nur der zwischen den beiden der Formatbreitenmitte am nächsten gelegenen Puderdüsen vorhandene Puderdüsenabstand masslich vom konstanten Puderdüsenabstand c der übrigen Puderdüsen der jeweiligen Puderdüsenreihe 2 bzw. 3 abweicht.The first, second and third powder nozzles 11, 12, 13 are each arranged at a nozzle effective distance a relative to the surface of the printing sheet 15 to be powdered. The nozzle effective distance a is based on the powder ejection orifice of the respective powder nozzle and in the direction perpendicular to the arc surface to measure. The Puderdüsenreihen 1, 2, 3 are equipped with the same even number of powder nozzles - in the example shown there are eight powder nozzles. The printing sheet 15 has a format width B. The first, second and third powder nozzles 11, 12, 13 are each arranged symmetrically distributed relative to the center of this format width B. This is advantageous in terms of a balanced loading of the sheet by the pneumatic forces of the respective powder nozzle row. All the first powder nozzles 11 of the first powder nozzle row 1 are arranged in a specific powder nozzle spacing c relative to their respective adjacent nozzle. Accordingly, said powder nozzle spacing c is also present between the two first powder nozzles 11 closest to the format width center. The second powder nozzles 12 of the second powder nozzle row 2 are in two nozzle groups with the same number of nozzles - in the example shown are the four second powder nozzles 12 - divided. Within each of the two nozzle groups, the second powder nozzles corresponding to the powder nozzle spacing c are arranged uniformly distributed. The nozzle groups are arranged offset away from each other, so that the powder nozzle distance between the two of the format width center closest to the second powder nozzles 12 is greater than the powder nozzle distance c. The third powder nozzles 13 of the third powder nozzle row 3 are in two nozzle groups with the same number of nozzles - in the example shown four third powder nozzles - divided. Within both nozzle groups of the third powder nozzle row, each third powder nozzle 13 has the specific powder nozzle spacing c relative to its neighboring nozzle. The two nozzle groups of the third powder nozzle row 3 are arranged offset from one another in such a way that the third powder nozzles 13 of the third powder nozzle row 3 located closest to the middle of the format width center are present Powder nozzle distance is less than the specific powder nozzle distance c.
Due to the nozzle group wise "pulling apart" of the second powder nozzle 2 and the nozzle groups "pushing together" the third powder nozzle 3, the second powder nozzle 2 and the third row of powder nozzles 3 each unevenly large powder nozzle distances, each only between the two of the format width center closest powder nozzles existing Powder nozzle distance differs massively from the constant powder nozzle spacing c of the other powder nozzles of the respective powder nozzle row 2 or 3.

Eine gegeneinander vertauschte Anordnung der ersten, zweiten und dritten Puderdüsenreihe 1, 2, 3 wäre selbstverständlich möglich.A mutually reversed arrangement of the first, second and third powder nozzle row 1, 2, 3 would of course be possible.

Der zwischen der ersten Puderdüsenreihe 1 und der zweiten Puderdüsenreihe 2 sowie zwischen der zweiten Puderdüsenreihe 2 und der dritten Puderdüsenreihe 3 bestehende Düsenreihenabstand b beträgt mindestens die Hälfte des Düsenwirkungsabstandes a (0,5a ≤ b). Beispielsweise kann das Verhältnis zwischen den beiden Abständen gemäß der Definition a ≤ b ≤ 5a oder vorzugsweise der Definition 1,6a ≤ b ≤ 3a gewählt sein. Der Düsenreihenabstand b und der Puderdüsenabstand c sind vorzugsweise gemäß folgender Definition dimensioniert: 0,5b ≤ c ≤ 2b.The nozzle row spacing b existing between the first powder nozzle row 1 and the second powder nozzle row 2 and between the second powder nozzle row 2 and the third powder nozzle row 3 is at least half the nozzle effective distance a (0.5a ≦ b). For example, the ratio between the two distances may be selected according to the definition a ≦ b ≦ 5a or preferably the definition 1.6a ≦ b ≦ 3a. The nozzle row spacing b and the powder nozzle pitch c are preferably dimensioned according to the following definition: 0.5b ≦ c ≦ 2b.

Jede erste, zweite und dritte Puderdüse 11, 12, 13 erzeugt beim Bepudern des Druckbogens 15 auf letzteren eine Puderspur 5 mit einer bestimmten Spurbreite p. Fig. 2 zeigt, dass zwischen den Puderspuren der dritten Puderdüsen 13 anfangs puderfreie Streifen vorhanden sind, welche danach durch die Puderspuren der zweiten Puderdüsen 12 mit Puder belegt werden. Dabei werden die Puderspuren 5 der dritten Puderdüsen 13 nicht oder nur im vernachlässigbaren Maße durch die Puderspuren der zweiten Puderdüsen 12 überlappt. Innerhalb der bereits durch die zweiten Puderdüsen 12 aber noch nicht durch die ersten Puderdüsen 11 bepuderten Bogenfläche befinden sich noch schmale unbepuderte Korridore, welche durch das aus den ersten Puderdüsen 11 ausgestoßene Puder geschlossen werden, so dass die die dritte Puderdüsenreihe 3 verlassende Bogenfläche eine insgesamt geschlossene, streifenfrei Puderbelegung aufweist, wie dies in Fig. 2 anhand der Schraffur gut zu erkennen ist. Die von den ersten Puderdüsen 11 aufgebrachten Puderspuren 5 überlappen die von den zweiten Puderdüsen 12 aufgebrachten Puderspuren 5 und die von den dritten Puderdüsen 13 aufgebrachten Puderspuren 5 nicht oder nur in vernachlässigbarem Maße.Each first, second and third powder nozzle 11, 12, 13 produced when powdering the sheet 15 on the latter a powder trace 5 with a certain track width p. Fig. 2 shows that between the powder traces of the third powder nozzles 13 initially powder-free strips are present, which are then covered by the powder traces of the second powder nozzles 12 with powder. The powder marks 5 of the third powder nozzles 13 are not or only in negligible dimensions overlapped by the powder traces of the second powder nozzles 12. Within the already powdered by the second powder nozzles 12 but not yet by the first powder nozzles 11 arc surface are still narrow unbudded corridors, which are closed by the expelled from the first powder nozzles 11 powder, so that the third powder nozzle row 3 leaving curved surface a total of closed , streak free powder occupancy, as shown in Fig. 2 can be clearly seen by the hatching. The powder traces 5 applied by the first powder nozzles 11 do not or only to a negligible extent overlap the powder traces 5 applied by the second powder nozzles 12 and the powder traces 5 applied by the third powder nozzles 13.

Die Puderspuren der drei Puderdüsenreihen 1, 2, 3 werden im Wesentlichen "Stoß auf Stoß" aneinandergefügt. In bestimmten Anwendungsfällen ist aber eine Überlappung der Puderspuren 5 tolerabel. Für jede Puderdüsenreihe 1, 2 bzw. 3 gilt, dass die Summe der Spurbreiten p der von dieser Puderdüsenreihe auf den zu pudernden Druckbogen 15 erzeugten Puderspuren mindestens (80 : n)% und höchstens (120 : n)% der Formatbreite B des Druckbogens 15 beträgt, wobei n (mit n ≥ 2) die Anzahl der gesamten Puderdüsenreihen ist.
Im gezeigten Beispiel gilt:
n=3The powder traces of the three rows of powder nozzles 1, 2, 3 are joined together substantially "bump on impact". In certain applications, however, an overlap of the powder traces 5 is tolerable. For each powder nozzle row 1, 2 or 3, the sum of the track widths p of the powder traces produced by this powder nozzle row on the printed sheet 15 to be powdered is at least (80: n)% and at most (120: n)% of the format width B of the printed sheet 15 is, where n (where n ≥ 2) is the number of total powder nozzle rows.
In the example shown:
n = 3

Bei acht Puderspuren 5 pro Puderdüsenreihe ist die Summe der Spurbreiten p der von dieser Puderdüsenreihe erzeugten Puderspuren 8 p.
Daraus folgt: B x (0,8 : 3) ≤ 8b ≤ B (1,2 : 3)
Ist das zuletzt angegebene Verhältnis gewahrt, funktioniert die Pudervorrichtung 14 problemlos.With eight powder traces 5 per row of powder nozzles, the sum of the track widths p of the powder tracks produced by this row of powder nozzles is 8 p.
It follows: B x (0.8: 3) ≤ 8b ≤ B (1.2: 3)
If the last specified ratio is respected, the powder device 14 works fine.

Der Druckbogen 15 reißt während seiner in die Bogenlaufrichtung 4 erfolgenden Bewegung aus der Umgebungsluft eine Schleppströmung 16 mit sich, die in Fig. 2 mittels Pfeilen symbolisch angedeutet ist. Die Schleppströmung 16 kann durch die Lücken zwischen den Strahlenbüscheln der Puderdüsen der jeweiligen Puderdüsenreihe ungehindert hindurchströmen, sodass ein den Lauf des Druckbogens 15 beeinträchtigender Stau der Schleppströmung 16 innerhalb der Pudervorrichtung 14 vermieden wird. Die mit dem Puderdüsenabstand c korrespondierende Größe der Lücken hängt wiederum von der Puderdüsenanzahl pro Puderdüsenreihe ab, wobei diese Puderdüsenanzahl aufgrund der vergleichsweise großen Anzahl von Puderdüsenreihen 11, 12, 13 der Pudervorrichtung 14 und aufgrund des transversalen Versatzes der Puderdüsen zueinander von Puderdüsenreihe zu Puderdüsenreihe vorteilhafterweise gering gehalten werden kann.The sheet 15 ruptures during its taking place in the sheet running direction 4 movement from the ambient air, a drag flow 16 with it, which in Fig. 2 symbolically indicated by arrows. The drag flow 16 can flow through the gaps between the beam tufts of the powder nozzles of the respective powder nozzle row unhindered, so that the run of the sheet 15 impairing congestion of the drag flow 16 within the powder device 14 is avoided. The size of the gaps corresponding to the powder nozzle spacing c in turn depends on the number of powder nozzles per row of powder nozzles, this number of powder nozzles advantageously being low due to the comparatively large number of powder nozzle rows 11, 12, 13 of the powder apparatus 14 and due to the transverse offset of the powder nozzles relative to one another from powder nozzle row to powder nozzle row can be held.

Die Pudervorrichtung 14 wird durch eine Steuerungseinrichtung 6 derart gesteuert, dass die Puderdüsenreihen 1, 2, 3 mit dem Bogenfördertakt korreliert aktiviert und deaktiviert werden. Hierbei wird jede Puderdüsenreihe 1, 2 bzw. 3 derart getaktet, dass sie während des Vorbeilaufens des Druckbogens 15 an dessen Anfang mit der Bepuderung einsetzt und am Bogenende aufhört. Demgemäß werden die dritte Puderdüsenreihe 3, die zweite Puderdüsenreihe 2 und die erste Puderdüsenreihe 1 in dieser genannten Reihenfolge aktiviert und deaktiviert.The powder device 14 is controlled by a control device 6 such that the powder nozzle rows 1, 2, 3 are correlated with the sheet delivery cycle activated and deactivated. Here, each powder nozzle row 1, 2 and 3 is clocked such that it begins during the passage of the printing sheet 15 at its beginning with the powdering and stops at the end of the sheet. Accordingly, the third powder nozzle row 3, the second powder nozzle row 2 and the first powder nozzle row 1 are activated and deactivated in this order mentioned.

Ein gegenüber der dritten Puderdüsenreihe 3 verzögertes Aktivieren der zweiten Puderdüsenreihe 2 und ein gegenüber letzterer verzögertes Aktivieren der ersten Puderdüsenreihe 1 ließe sich auch durch von Puderdüsenreihe zu Puderdüsenreihe unterschiedlich lange Zuführkanäle 18 für das Puder-Luft-Gemisch erzielen. Diese Zuführkanäle 18 können Schlauchleitungen sein. Die Längen der Zuführkanäle 18 können derart gestaffelt sein, dass die vom Druckbogen 15 zuerst erreichte dritte Puderdüsenreihe 3 den kürzesten Zuführkanal 18 aufweist und die vom Druckbogen 15 zuletzt erreichte erste Puderdüsenreihe 1 den längsten Zuführkanal 18 aufweist. Durch die von Puderdüsenreihe zu Puderdüsenreihe in Bogenlaufrichtung 4 zunehmende Länge der Zuführkanäle 18 werden sogenannte Totzeiten für die Puderluft bestimmt.A delay in relation to the third powder nozzle row 3 activating the second powder nozzle row 2 and with respect to the latter delayed activation of the first powder nozzle row 1 could also be achieved by powder nozzle row to powder nozzle row of different length feed channels 18 for the powder-air mixture. These feed channels 18 may be hose lines. The Lengths of the feed channels 18 may be staggered such that the first powder nozzle row 3 first reached by the print sheet 15 has the shortest feed channel 18 and the last powder nozzle row 1 last reached by the print sheet 15 has the longest feed channel 18. By the powder nozzle row to powder nozzle row in the sheet running direction 4 increasing length of the feed channels 18 so-called dead times are determined for the powder air.

Ebenso könnte es vorgesehen sein, dass die Steuerungseinrichtung 6 die Puderdüsenreihen 1, 2, 3 nicht nur in Abhängigkeit von der Anwesenheit des zu bepudernden Druckbogens 15 an einen bestimmten Ort aktiviert, sondern auch in Abhängigkeit von der jeweiligen Druckgeschwindigkeit und somit Bogentransportgeschwindigkeit. So kann der Abschaltzeitpunkt der Puderluft bei niedrigen Druckgeschwindigkeiten verzögert werden und der Zuschaltzeitpunkt der Puderluft bei höheren Druckgeschwindigkeiten vorgezogen werden.It could also be provided that the control device 6 activates the powder nozzle rows 1, 2, 3 not only as a function of the presence of the printing sheet 15 to be powdered at a specific location, but also as a function of the respective printing speed and thus sheet transport speed. Thus, the switch-off of the powder air can be delayed at low printing speeds and the Zuschaltzeitpunkt the powdered air at higher printing speeds are preferred.

BEZUGSZEICHENLISTELIST OF REFERENCE NUMBERS

11
erste Puderdüsenreihefirst powder nozzle row
22
zweite Puderdüsenreihesecond powder nozzle row
33
dritte Puderdüsenreihethird powder nozzle row
44
BogenlaufrichtungSheet running direction
55
Puderspurpowder track
66
Steuerungseinrichtungcontrol device
77
Druckmaschinepress
88th
Bogenauslegersheet delivery
99
Kettenfördererchain conveyors
1010
Greiferbrückegripper
1111
erste Puderdüsefirst powder nozzle
1212
zweite Puderdüsesecond powder nozzle
1313
dritte Puderdüsethird powder nozzle
1414
Pudervorrichtungpowder device
1515
Druckbogensheet
1616
Schleppströmungdrag flow
1717
Traversetraverse
1818
Zuführkanalfeed
BB
Formatbreitesize width
aa
DüsenwirkungsabstandNozzle effect distance
bb
DüsenreihenabstandNozzle row spacing
cc
PuderdüsenabstandPowder nozzle spacing
pp
Spurbreitegauge

Claims (6)

  1. Powdering device (14) of a printing press (7) comprising a first row (1) of powder nozzles including first powder nozzles (11), characterized by a second row (2) of powder nozzles including second powder nozzles (12) at least one of which (12) is arranged at least partially between two mutually adjacent powder nozzles (11) of the first row (1) of powder nozzles as viewed in the direction of sheet travel (4), wherein there is a nozzle row distance (b) to be measured in the direction of sheet travel between the first row (1) of powder nozzles and the second row (2) of powder nozzles, the nozzle row distance (b) being at least one half of a nozzle action distance (a) present between powder nozzle openings of the first powder nozzles (11) and of the second powder nozzles (12) and the print sheet (15) to be powdered.
  2. Powdering device according to Claim 1,
    characterized by
    the fact that apart from the at least one powder nozzle (12) of the second row (2) of powder nozzles, a further powder nozzle (12) of the second row (2) of powder nozzles is arranged at least partially between the said two mutually adjacent powder nozzles (11) of the first row (1) of powder nozzles as viewed in the direction of sheet travel (4).
  3. Powdering device according to Claim 1 or 2,
    characterized by
    the fact that a plurality (n) of rows (1, 2, 3) of powder nozzles including the first row (1) of powder nozzles and the second row (2) of powder nozzles is provided and that for each row (1, 2, 3) of powder nozzles the total of the line widths (p) of the powder lines (5) created by this row of powder nozzles on the print sheet (15) to be powdered equals between (80 : n)% and (120 : n)% of the format width (B) of the print sheet (15).
  4. Powdering device according to one of Claims 1 to 3,
    characterized by
    the fact that the nozzle row distance (b) ranges between a minimum of one half of and a maximum of twice a powder nozzle distance (c) to be measured from a respective powder nozzle (11, 12) to an adjacent powder nozzle (11, 12) of the first row (1) of powder nozzles and of the second row (2) of powder nozzles.
  5. Powdering device according to one of Claims 1 to 4,
    characterized by
    the fact that a control device (6) is assigned to the first row (1) of powder nozzles and the second row (2) of powder nozzles for their successive activation.
  6. Printing press (7) including a powdering device (14) according to one of Claims 1 to 5.
EP08105260A 2007-09-28 2008-09-08 Powder device Active EP2042316B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102007046651A DE102007046651A1 (en) 2007-09-28 2007-09-28 powder device

Publications (3)

Publication Number Publication Date
EP2042316A2 EP2042316A2 (en) 2009-04-01
EP2042316A3 EP2042316A3 (en) 2010-08-11
EP2042316B1 true EP2042316B1 (en) 2011-11-09

Family

ID=40260553

Family Applications (1)

Application Number Title Priority Date Filing Date
EP08105260A Active EP2042316B1 (en) 2007-09-28 2008-09-08 Powder device

Country Status (4)

Country Link
EP (1) EP2042316B1 (en)
CN (1) CN101396902B (en)
AT (1) ATE532634T1 (en)
DE (1) DE102007046651A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102015209514A1 (en) 2014-06-20 2015-12-24 Heidelberger Druckmaschinen Ag Powder device for a printing machine

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102015014715A1 (en) 2015-11-17 2017-05-18 Eltosch Grafix GmbH Apparatus and method for powdering printed sheets
CN105421245B (en) * 2015-12-18 2017-08-25 江苏兆通工程技术有限公司 Bent cap is without support steel hoop method construction technology
DE102018220528A1 (en) * 2018-01-25 2019-07-25 Heidelberger Druckmaschinen Ag Method for operating a printing press
DE102019214114A1 (en) 2018-10-29 2020-04-30 Heidelberger Druckmaschinen Ag Method and device for powdering sheets in a printing press
EP4059718B1 (en) * 2021-03-18 2024-06-26 Heidelberger Druckmaschinen AG Control of powder zones in printing machines

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE602762C (en) * 1932-10-08 1934-09-15 Otto Heinrich Device for spraying freshly printed sheets with liquid paraffin, wax or the like.
DE8814129U1 (en) * 1988-11-11 1990-03-15 Platsch, Hans G., Dipl.-Ing., 7000 Stuttgart Device for dusting printed products
DE19643747A1 (en) * 1996-10-23 1998-04-30 Heidelberger Druckmasch Ag Separating medium application device for flat products
DE19733691C2 (en) 1996-12-10 2001-02-08 Heidelberger Druckmasch Ag Sheet-fed rotary printing machine
EP0847856A3 (en) * 1996-12-10 1998-12-30 Heidelberger Druckmaschinen Aktiengesellschaft Powdering device for sheets
DE10038774A1 (en) 2000-06-09 2001-12-13 Heidelberger Druckmasch Ag Printer powder ink air transporter creates flow electrostatically allows local ink deposition
JP3949993B2 (en) * 2002-04-02 2007-07-25 株式会社小森コーポレーション Powder machine of printing machine
DE102004057478B4 (en) 2004-11-19 2009-07-09 Weitmann & Konrad Gmbh & Co. Kg Aerosol can and method for dusting of fresh printed products
DE102005039078B3 (en) * 2005-08-05 2007-03-08 Weitmann & Konrad Gmbh & Co Kg Powder spraying device for use in printing machine, has spray nozzles, where powder density is increased in boundary region of elbow or web as nozzles are inclined in boundary region

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102015209514A1 (en) 2014-06-20 2015-12-24 Heidelberger Druckmaschinen Ag Powder device for a printing machine

Also Published As

Publication number Publication date
EP2042316A2 (en) 2009-04-01
EP2042316A3 (en) 2010-08-11
CN101396902A (en) 2009-04-01
DE102007046651A1 (en) 2009-04-02
ATE532634T1 (en) 2011-11-15
CN101396902B (en) 2012-08-08

Similar Documents

Publication Publication Date Title
DE4447963B4 (en) Device for non-contact guiding sheet material
EP2042316B1 (en) Powder device
EP0670215A1 (en) Device for drying printed sheets or webs in printing machines
DE4207118C2 (en) Pollinator
EP0725025A2 (en) Sheet guiding device for printing machines
EP1914004B1 (en) Method for controlling a powder applicator
DE102004057478B4 (en) Aerosol can and method for dusting of fresh printed products
CH660332A5 (en) Web-fed offset rotary printing machine
DE2137115A1 (en) BOW CONVEYOR
DE19901670C5 (en) Method and device for keeping clean and / or cleaning a sheet delivery of a sheet-fed offset printing press
DE29817317U1 (en) Sheet guiding device with a guiding surface in a printing press
DE3520965C2 (en)
EP1834912B1 (en) Sheet material processing machine with a guide for the suspended transport thereof
DE4014830A1 (en) Printing machine paper transport with inclined air jets - has nozzles arranged to form closed polygonal air streams providing suction and supporting effects
DE102014221460A1 (en) Device for drying sheets
DE102004054044B4 (en) Method and device for transporting flat products
EP1762528A2 (en) Device for combining several printed webs
DE102018101295B4 (en) Method and device for printing a recording medium with a coating material and a corresponding printing system
DE102019127868A1 (en) Printing machine with a blowing device in front of a printing nip
DE102013205783B4 (en) Device for applying powder to printed sheets
DE102015209514A1 (en) Powder device for a printing machine
CH531316A (en) Device for incorporating cigarette filter sections supplied in parallel tracks into at least one track
DE10248249A1 (en) Dryer for a web of material
DE19647259A1 (en) Method and device for cleaning means of transport
DE102015014715A1 (en) Apparatus and method for powdering printed sheets

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A2

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MT NL NO PL PT RO SE SI SK TR

AX Request for extension of the european patent

Extension state: AL BA MK RS

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Kind code of ref document: A3

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MT NL NO PL PT RO SE SI SK TR

AX Request for extension of the european patent

Extension state: AL BA MK RS

RIN1 Information on inventor provided before grant (corrected)

Inventor name: HACHMANN, PETER, DR.

Inventor name: FELLENBERG, ULRICH

Inventor name: HERRMANN, BERND

Inventor name: GOETZ, REINER

Inventor name: HAAS, CLAUDIUS

Inventor name: KAUFMANN, BERNHARD

Inventor name: HAAS, REINER

17P Request for examination filed

Effective date: 20110211

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

RIC1 Information provided on ipc code assigned before grant

Ipc: B41F 23/06 20060101AFI20110303BHEP

AKX Designation fees paid

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MT NL NO PL PT RO SE SI SK TR

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

RIN1 Information on inventor provided before grant (corrected)

Inventor name: GOETZ, REINER

Inventor name: HACHMANN, PETER, DR.

Inventor name: HAAS, CLAUDIUS

Inventor name: KAUFMANN, BERNHARD

Inventor name: HERRMANN, BERND

Inventor name: HAAS, REINER

Inventor name: FELLENBERG, ULRICH

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MT NL NO PL PT RO SE SI SK TR

REG Reference to a national code

Ref country code: GB

Ref legal event code: FG4D

Free format text: NOT ENGLISH

REG Reference to a national code

Ref country code: CH

Ref legal event code: EP

REG Reference to a national code

Ref country code: IE

Ref legal event code: FG4D

Free format text: LANGUAGE OF EP DOCUMENT: GERMAN

REG Reference to a national code

Ref country code: DE

Ref legal event code: R096

Ref document number: 502008005512

Country of ref document: DE

Effective date: 20120126

REG Reference to a national code

Ref country code: NL

Ref legal event code: VDEP

Effective date: 20111109

LTIE Lt: invalidation of european patent or patent extension

Effective date: 20111109

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IS

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20120309

Ref country code: LT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20111109

Ref country code: NO

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20120209

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: NL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20111109

Ref country code: SE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20111109

Ref country code: SI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20111109

Ref country code: PL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20111109

Ref country code: HR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20111109

Ref country code: PT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20120309

Ref country code: GR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20120210

Ref country code: LV

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20111109

REG Reference to a national code

Ref country code: IE

Ref legal event code: FD4D

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: CY

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20111109

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20111109

Ref country code: CZ

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20111109

Ref country code: EE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20111109

Ref country code: DK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20111109

Ref country code: BG

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20120209

Ref country code: IE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20111109

PLBI Opposition filed

Free format text: ORIGINAL CODE: 0009260

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: RO

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20111109

Ref country code: IT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20111109

26 Opposition filed

Opponent name: PLATSCH GMBH & CO. KG

Effective date: 20120808

PLAX Notice of opposition and request to file observation + time limit sent

Free format text: ORIGINAL CODE: EPIDOSNOBS2

PLBB Reply of patent proprietor to notice(s) of opposition received

Free format text: ORIGINAL CODE: EPIDOSNOBS3

REG Reference to a national code

Ref country code: DE

Ref legal event code: R026

Ref document number: 502008005512

Country of ref document: DE

Effective date: 20120808

BERE Be: lapsed

Owner name: HEIDELBERGER DRUCKMASCHINEN A.G.

Effective date: 20120930

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: ES

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20120220

Ref country code: MC

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20120930

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20111109

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: CH

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20120930

Ref country code: BE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20120930

Ref country code: LI

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20120930

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: MT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20111109

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: TR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20111109

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LU

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20120908

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: HU

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20080908

PLCK Communication despatched that opposition was rejected

Free format text: ORIGINAL CODE: EPIDOSNREJ1

REG Reference to a national code

Ref country code: AT

Ref legal event code: MM01

Ref document number: 532634

Country of ref document: AT

Kind code of ref document: T

Effective date: 20130908

PLBN Opposition rejected

Free format text: ORIGINAL CODE: 0009273

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: OPPOSITION REJECTED

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: AT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20130908

REG Reference to a national code

Ref country code: DE

Ref legal event code: R231

Ref document number: 502008005512

Country of ref document: DE

27O Opposition rejected

Effective date: 20141016

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Free format text: LAPSE BECAUSE OF THE APPLICANT RENOUNCES

Effective date: 20150304

REG Reference to a national code

Ref country code: DE

Ref legal event code: R409

Ref document number: 502008005512

Country of ref document: DE

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 8

PGRI Patent reinstated in contracting state [announced from national office to epo]

Ref country code: DE

Effective date: 20150601

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 9

REG Reference to a national code

Ref country code: DE

Ref legal event code: R081

Ref document number: 502008005512

Country of ref document: DE

Owner name: HEIDELBERGER DRUCKMASCHINEN INTELLECTUAL PROPE, DE

Free format text: FORMER OWNER: HEIDELBERGER DRUCKMASCHINEN AKTIENGESELLSCHAFT, 69115 HEIDELBERG, DE

Ref country code: DE

Ref legal event code: R081

Ref document number: 502008005512

Country of ref document: DE

Owner name: HEIDELBERGER DRUCKMASCHINEN AG, DE

Free format text: FORMER OWNER: HEIDELBERGER DRUCKMASCHINEN AKTIENGESELLSCHAFT, 69115 HEIDELBERG, DE

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 10

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 11

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 20180924

Year of fee payment: 11

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 20180924

Year of fee payment: 11

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20190908

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20190930

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20190908

REG Reference to a national code

Ref country code: DE

Ref legal event code: R081

Ref document number: 502008005512

Country of ref document: DE

Owner name: HEIDELBERGER DRUCKMASCHINEN INTELLECTUAL PROPE, DE

Free format text: FORMER OWNER: HEIDELBERGER DRUCKMASCHINEN AG, 69115 HEIDELBERG, DE

P01 Opt-out of the competence of the unified patent court (upc) registered

Effective date: 20230502

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20240930

Year of fee payment: 17