EP1892095A2 - DIspositif et méthode de séparation de feuilles imprimées - Google Patents

DIspositif et méthode de séparation de feuilles imprimées Download PDF

Info

Publication number
EP1892095A2
EP1892095A2 EP07014148A EP07014148A EP1892095A2 EP 1892095 A2 EP1892095 A2 EP 1892095A2 EP 07014148 A EP07014148 A EP 07014148A EP 07014148 A EP07014148 A EP 07014148A EP 1892095 A2 EP1892095 A2 EP 1892095A2
Authority
EP
European Patent Office
Prior art keywords
waste
parts
sheet
punching
good
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.)
Withdrawn
Application number
EP07014148A
Other languages
German (de)
English (en)
Inventor
Karlheinz Dipl.-Ing. Mohn
Helmut Dipl.-Ing. Schild
Thomas Dipl.-Ing. Walther
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.)
Manroland AG
Original Assignee
MAN Roland 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
Application filed by MAN Roland Druckmaschinen AG filed Critical MAN Roland Druckmaschinen AG
Publication of EP1892095A2 publication Critical patent/EP1892095A2/fr
Withdrawn legal-status Critical Current

Links

Images

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F13/00—Common details of rotary presses or machines
    • B41F13/54—Auxiliary folding, cutting, collecting or depositing of sheets or webs
    • B41F13/56—Folding or cutting

Definitions

  • the invention relates to devices for crop separation and a method for separating a rotatively punched sheet in at least one good and in a waste part.
  • the EP 1 283 765 B1 describes therefore an apparatus and a method for separation into a good and a waste part, in which the rotary punching tool is integrated in the sheet entrance of a sheet delivery of a sheet-fed press.
  • the EP 1 283 765 B1 is to be regarded as a generic representative for applications of inline stamping and inline embossing within printing presses, in particular for cutting and punching of printed cardboard, cardboard packaging, corrugated cardboard, paper or similar sheet-like substrates by means of a rotary die, in which the substrate in the feed direction between two rotating machining rollers can be inserted and when passing through the working gap effective tool parts undergoes its processing in which the substrate is divided into at least one waste part and at least one good part, wherein a processing roller is provided with at least one gripper for the register-oriented transport of the sheet-shaped substrate, characterized in that means for spreading and separating the good part provided by the waste part at the discharge end of the working gap.
  • the DE 26 14 941 describes a laser cutting device for sheet material, which separates the sheet longitudinally in at least two partial sheets.
  • the laser longitudinal separation device is assigned to either the sheet delivery or a drum of a printing press. Described here but only methods for separating or perforating the sheets in the printing press, the punching or separation of individual benefits is not part of this patent.
  • the DE 44 42 411 discloses an apparatus for inline paper processing in a printing machine, wherein the geometry data are provided in digital form, which in turn drive the processing tools, preferably laser devices.
  • This allows inline paper processing in the printing press over the entire printing or paper width with freely configurable and changeable processing geometries.
  • the disadvantage of this solution found is that very powerful and very fast laser must be used to cut out the complete punching contour from the sheet.
  • signatures are printed with sheetfed printing at a speed of approx. 5 m / s, whereby each signature usually has several benefits.
  • the laser device would have to in this case have a laser cutting speed of a multiple of 100 m / s or alternatively, several lasers should be used in parallel. Both approaches make the economics of this process questionable for the manufacture of folding carton benefits.
  • the object of the invention is to enable the blank separation on during the passage through the printing machine rotatively punched sheet in at least one good and a waste part.
  • the separation of the benefits of the arc in at least one good and at least one waste part is spatially separated.
  • the print sheet is punched in a rotary manner according to a benefit contour within the printing press.
  • one or more printing cylinders, one or more cylinders of a coating unit are each provided with a punching plate or special punching cylinder used.
  • a corresponding to these cylinders counter-pressure cylinder carry a punching plate.
  • the punching plate can be etched and milled from metal.
  • the punching plate may have a carrier plate, were fixed in the punching knife.
  • the corresponding cylinder optionally has a counter-mold, a protective plate or protective film, wherein the punching plate have at least cutting lines which correspond to the useful contour.
  • the cutting lines are interrupted at several points, so that breakpoints arise that attach the punched benefits with breakpoints on the or the waste part (s) or other benefits, so that the sheet with the punched benefits further in the printing press or in the sheet delivery the printing press can be transported without the benefits of it being released from the sheet or can be lost.
  • FIG. 1 shows a printed sheet 4 with a utility structure.
  • the printing sheet 4 is punched in rotation in accordance with the benefit contour 1 within a printing press. This can be done with printing cylinders, cylinders of a coating unit or special punching cylinders.
  • the respective counter-pressure cylinder corresponding to one of the cylinders can carry a punching plate which has been etched or milled from metal, or which has a carrier plate in which punching blades have been fastened.
  • the corresponding cylinder may optionally carry a counter-mold, a protective plate or protective film.
  • the punching plate has at least cutting lines that correspond to thecytokontur 1. The cutting lines are interrupted at several points, so that breakpoints (see FIG.
  • the separation into at least one Goodteil / Benefit 5 and at least one waste part 3 is then carried out by the good parts / benefits 5 are removed from the sheet 4 by only the breakpoints (see 1) are separated by a laser cut.
  • the good parts / benefits 5 can then be separated from the waste parts 3 in the known methods.
  • the laser or the laser devices can be assigned to a printing cylinder, a forme cylinder, a sheet guiding cylinder or the sheet delivery of the printing press. Furthermore, the laser can be used by another transport system, e.g. Be associated with a conveyor belt, which conveys the sheet 4 with the or the punched-5 benefits directly from the printing press. Furthermore, the laser device (s) may be associated with a further processing station which may be directly or via an intermediate buffer, e.g. a paternoster system connected to the printing press.
  • an intermediate buffer e.g. a paternoster system connected to the printing press.
  • the separation into at least one Goodteil / Nutz 5 and at least one waste part 3 by the separation of breakpoints can be done by a laser, which is located inside or outside the space of the printing machine, the light beam (laser beam) via at least one fast Optics can be focused or deflected (laser scanner).
  • a plurality of laser units can be arranged over the width of the printing press, each covering only a portion of the printed sheet 4.
  • the laser beam or beams are activated only in the area of the breakpoints (see FIG. 1).
  • the activation or deactivation can be effected by the controlled switching on or off of the laser, or by a corresponding deflection of a continuously operating laser beam in the direction of the printed sheet 4 towards or away from it.
  • An advantage of the solution found is based on the fact that the printed sheet 4 can be safely transported further through the printing machine with the stamped or punched-on holding points (see FIG. 1) without the unwanted separation of the good part / use 5 from the scrap part 3 must be feared before the safe storage of the sheet 4.
  • This allows the physical separation of the punching operation in the printing press from the separation process in the printing press or in a post-processing device connected to the printing press. Therefore, integration into existing printing machines is significantly facilitated by punching e.g. can be done in a printing cylinder and the separation into good parts / benefits 5 and waste parts 3 at a different location, which allows easier integration of such a separation device.
  • the solution found has the advantage that only a fraction of the laser energy must be used because not the entire benefit contour 1, but only the breakpoints contained therein, the good parts / Benefit 5 and waste parts 3 interconnect, must be separated. This allows the use of less expensive lasers, which can have a moderate feed rate and lower laser power.
  • the separation of the breakpoints can be done by a laser device. It may also be useful for technical or economic reasons to arrange several laser devices next to each other.
  • the creasing 2 can be carried out in accordance with the invention together with the punching process, or the creasing or punching process can be carried out in conjunction with two separate printing press cylinders. This has the decisive advantage that the grooving and the punching can be adjusted independently of each other.
  • the method according to the invention can be further improved by transporting a printed sheet 4, which has been reduced by means of corresponding devices around the good parts / benefits 5, as a punching frame or waste frame to the stack of the sheet delivery of the printing press.
  • the punching frame or waste frame of the printing sheet 4 can be discharged by means of Ab primaryvoriques, such as a curved switch, from the transport path and stored in a waste receptacle.
  • test sheets which are taken for quality control
  • the operator will ask for them a corresponding signal is triggered.
  • the separation of the sheet 4 in good parts / benefits 5 and waste parts 3 is interrupted. The interruption takes place for one or more printed sheets 4, but at least the number of sample sheets to be taken.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Laser Beam Processing (AREA)
  • Making Paper Articles (AREA)
EP07014148A 2006-08-04 2007-07-19 DIspositif et méthode de séparation de feuilles imprimées Withdrawn EP1892095A2 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102006036918 2006-08-04

Publications (1)

Publication Number Publication Date
EP1892095A2 true EP1892095A2 (fr) 2008-02-27

Family

ID=38921684

Family Applications (1)

Application Number Title Priority Date Filing Date
EP07014148A Withdrawn EP1892095A2 (fr) 2006-08-04 2007-07-19 DIspositif et méthode de séparation de feuilles imprimées

Country Status (1)

Country Link
EP (1) EP1892095A2 (fr)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2614941A1 (de) 1975-06-23 1977-01-20 Polygraph Leipzig Laengstrenneinrichtung fuer bogenmaterial an bogenbearbeitenden maschinen
DE4442411A1 (de) 1994-11-29 1996-06-05 Heidelberger Druckmasch Ag Verfahren und Vorrichtung zur formenden Bearbeitung von Papier in einer Druckmaschine
EP1283765B1 (fr) 2000-04-08 2004-04-07 Ebe Hesterman Dispositif pour traiter des emballages imprimes ou des substrats analogues

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2614941A1 (de) 1975-06-23 1977-01-20 Polygraph Leipzig Laengstrenneinrichtung fuer bogenmaterial an bogenbearbeitenden maschinen
DE4442411A1 (de) 1994-11-29 1996-06-05 Heidelberger Druckmasch Ag Verfahren und Vorrichtung zur formenden Bearbeitung von Papier in einer Druckmaschine
EP1283765B1 (fr) 2000-04-08 2004-04-07 Ebe Hesterman Dispositif pour traiter des emballages imprimes ou des substrats analogues

Similar Documents

Publication Publication Date Title
EP1283765B2 (fr) Dispositif pour traiter des emballages imprimes ou des substrats analogues
EP4069479B1 (fr) Dispositif et procédé de séparation d'ébauche
EP1837136B1 (fr) Dispositif et procédé destinés à la coupe de sections de matériau plat d'une feuille de matériau plat
EP3838524B1 (fr) Procédé de fonctionnement d'une presse de découpe à plat
DE102004058600A1 (de) Vorrichtung zur veredelnden Bearbeitung von bahnförmigen Substraten
EP3959078B1 (fr) Machine de traitement de feuilles et procédé d'inspection d'une feuille
EP3064327B1 (fr) Procede de correction de registre d'une presse de decoupe a plat
DE4241810A1 (de) Formatvariabler Kombinationsfalzapparat
EP2087972B1 (fr) Dispositif d'estampillage
DE102007033544A1 (de) Nutzentrennung
EP2532521B1 (fr) Dispositif de découpage pour le traitement d'une pile de feuilles et presse, plieuse ou machine de traitement du papier équipée de ce dispositif
EP2746007B1 (fr) Système et procédé de fabrication à estampillage rotatif et à banc plat
WO1983004004A1 (fr) Procede et dispositif pour perforer, poinçonner ou rainurer du papier et du carton dans une presse rotative
DE102012019992A1 (de) Vorrichtung für eine Flachbettstanze und Verfahren zum Zuführen einer Bedruckstoffbahn
EP4069480B1 (fr) Dispositif et procédé de séparation d'ébauche
WO2021233667A1 (fr) Dispositif et procédé désassemblage
EP2532468A2 (fr) Plieuse de feuilles avec laser et procédé de préparation d'une feuille
DE102011014858A1 (de) Stanzstation mit Zurichtvorrichtung
EP1892095A2 (fr) DIspositif et méthode de séparation de feuilles imprimées
DE10328805A1 (de) Vorrichtung zum Längsauftragen von Klebstoff in einem Falzapparat
DE102013001778A1 (de) Überwachungsverfahren zur Kollisionsvermeidung einer Stanzmaschine mit Bremsbürste
EP1916107A2 (fr) Dispositif et procédé destinés au traitement de substrats de type feuille dans une presse d'impression sur feuilles
EP4107104A1 (fr) Machine de traitement de feuille et procédé permettant de traiter des feuilles dans une machine de traitement de feuille
EP4010154B1 (fr) Procédé de séparation de produits imprimés, imprimés ensemble sur une feuille
DE102024124650A1 (de) Vorrichtung und Verfahren zum zumindest abschnittsweisen Durchtrennen eines bahn- oder bogenförmigen Substrates

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 HU IE IS IT LI LT LU LV MC MT NL PL PT RO SE SI SK TR

AX Request for extension of the european patent

Extension state: AL BA HR MK YU

RAP1 Party data changed (applicant data changed or rights of an application transferred)

Owner name: MANROLAND AG

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

Free format text: STATUS: THE APPLICATION HAS BEEN WITHDRAWN

18W Application withdrawn

Effective date: 20100923