WO2011141041A1 - Dispositif de perforation et/ou de rainage et/ou de poinçonnage pour machines d'impression rotatives - Google Patents

Dispositif de perforation et/ou de rainage et/ou de poinçonnage pour machines d'impression rotatives Download PDF

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Publication number
WO2011141041A1
WO2011141041A1 PCT/EP2010/002980 EP2010002980W WO2011141041A1 WO 2011141041 A1 WO2011141041 A1 WO 2011141041A1 EP 2010002980 W EP2010002980 W EP 2010002980W WO 2011141041 A1 WO2011141041 A1 WO 2011141041A1
Authority
WO
WIPO (PCT)
Prior art keywords
plastic
plate
cylinder
blanket
printing
Prior art date
Application number
PCT/EP2010/002980
Other languages
German (de)
English (en)
Inventor
Jürgen Marien
Oliver Kellermann
Roberto Croci
Original Assignee
Cito-System Gmbh
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 Cito-System Gmbh filed Critical Cito-System Gmbh
Priority to PCT/EP2010/002980 priority Critical patent/WO2011141041A1/fr
Publication of WO2011141041A1 publication Critical patent/WO2011141041A1/fr

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41G—APPARATUS FOR BRONZE PRINTING, LINE PRINTING, OR FOR BORDERING OR EDGING SHEETS OR LIKE ARTICLES; AUXILIARY FOR PERFORATING IN CONJUNCTION WITH PRINTING
    • B41G7/00—Auxiliary perforating apparatus associated with printing devices
    • B41G7/006—Auxiliary perforating apparatus associated with printing devices for cylinder presses
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F19/00—Apparatus or machines for carrying out printing operations combined with other operations
    • B41F19/008—Apparatus or machines for carrying out printing operations combined with other operations with means for stamping or cutting out
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41P—INDEXING SCHEME RELATING TO PRINTING, LINING MACHINES, TYPEWRITERS, AND TO STAMPS
    • B41P2217/00—Printing machines of special types or for particular purposes
    • B41P2217/10—Printing machines of special types or for particular purposes characterised by their constructional features
    • B41P2217/14—Machines with constructions allowing refurbishing, converting or updating existing presses

Definitions

  • the invention relates to a device for perforating and / or grooving and / or punching for rotary printing presses according to the preamble of claim 1, a flexible support plate according to the preamble of claim 10, a method for positioning tools according to the preamble of claim 11 and set after
  • a generic device is known from EP 0 739 731 B1, in which it is provided on an offset sheet-fed press, to provide a thin film of 0.3 mm on two opposite sides, each with a bar to these instead of a Clamp blanket in a clamping device on the blanket cylinder of a printing unit or on a forme cylinder of a coating unit.
  • This thin film is provided on its underside with a base, wherein the thickness of the film and the base to correspond to the thickness of the blanket used for the same use.
  • the thin film may be made of metal or plastic, and this thin film may also be provided on its upper side with another removable plastic film, by means of which the thin first film is to be spared, the second protective film can be replaced if necessary by a new film should. Again, the thickness of all films and the pad should again correspond to the thickness of the blanket used for the same application.
  • the thin film is to be formed by a metal foil and the protective film by a thin plastic film, while the pad by a press-clamping plate
  • CONFIRMATION COPY should be formed.
  • this is a relatively complex structure with multiple components, in which there is also the risk that the thin metal foil kinks during handling and thus has such undesirable elevations, which lead to a poor perforation or punching result, as in the Perforations and punches even the smallest deviations in the range of far below 1 mm can lead to an undesirable and unclean result.
  • a protective film made of a plastic material applied to the upper side of the metal foil is subject to very high wear, so that it has to be replaced relatively frequently, which undesirably increases the operating costs in perforation or the like and also leads to increased service lives of the printing presses. since complex conversion or maintenance work is required.
  • Another object is to provide a method for positioning tools, by means of which a positionally accurate positioning of tools in a printing and / or coating unit of a rotary printing press is possible in a simple and reliable manner.
  • a further object is finally to provide a set for carrying out such a method, with which also subsequent perforating, Rilloder punching work can be carried out with high quality and functional reliability.
  • an apparatus for perforating and / or grooving and / or punching for rotary printing machines with at least one printing unit and / or coating unit which comprises a blanket cylinder formed by a blanket cylinder or a blanket cylinder cylinder with a holding device for a rubber-elastic and thus yielding or soft Rubber or varnish cloth, wherein on the blanket cylinder instead of the blanket or varnish an inelastic and therefore hard or stable, but at least in the cylinder circumferential direction flexible carrier layer is clamped, which is provided on its top side facing away from the blanket cylinder with a protective layer.
  • the carrier layer is formed by a plastic plate, to which, assigned to a defined printing area of the blanket cylinder, an apron is applied as a protective layer.
  • a construction according to the invention differs fundamentally from the design principle described in EP 0 739 731 B1 and has a number of advantages over this: For example, a relatively thick, dimensionally stable, that is invariable with respect to its external dimensions, resistant to buckling and no thin Foil formed plastic plate as a support for the actual fender, that is, the carrier plate as such plays a pure carrier function and thus this other than the thin metal foil in EP 0 739 731 B1 no protective function against the example perforating, scoring or punching tools of the associated impression cylinder must have.
  • the protective plate is thus preferably arranged on the plastic carrier plate only in the region between the two carrier plate pressure surface bending regions, preferably between the two groove-shaped carrier plate pressure surface recesses, so that it can not be damaged during handling of the plastic carrier plate.
  • the protective sheet can be applied in this area, for example, strip-shaped, but provided for a universal and suitable for all perforating, creasing and stamping work structure according to a particularly preferred embodiment, that the fender over the entire surface and over the essentially entire carrier plate area extends between the two groove-shaped carrier plate Druck horrabknick- areas.
  • a clamping rail is preferably arranged in each case by means of which the plastic carrier plate can be fixed to the holding device.
  • the clamping rail can be permanently fixed or arranged to be detachable.
  • the carrier plate at the Stauplattenend Schemeen in each case another, spaced from the example, groove-shaped Nursingplatten Druck horr- kinking areas, second, preferably groove-shaped and in the clamped state at least partially, preferably over the entire carrier plate width, has approximately parallel to the cylinder axis extending support plate-Spannschienenabknick Scheme, which is associated with the clamping rail so that the clamping rail connected thereto with a defined distance, preferably immediately.
  • an example defined material weakening area is provided in connection with the clamping rails, which ensures, for example, in connection with conventional clamping shafts as clamping rails an even easier clamping of the plastic carrier plate.
  • At least one of the carrier plate Druck vomabknick Schemee seen in Zylinderachsplatz support plate a Druck vomabknick Schemee recess is designed as a cylinder print area labeling, which also immediately and immediately indicate to the operator the exact beginning of printing or the exact end of printing.
  • the fender can basically be applied in different ways on the plastic carrier plate, for example, for a permanent Compound be laminated on the plastic carrier plate.
  • the protective sheet may also be adhesively bonded to the plastic carrier plate for a detachable connection by means of an adhesive layer, in particular by means of an adhesive film.
  • an adhesive layer in particular by means of an adhesive film.
  • the permanently fixed connection of the mudguard on the plastic carrier plate can be particularly advantageous for such applications in which it must be ensured that the mudguard with a very high reliability in a defined area permanently fixed on the plastic carrier plate must be arranged.
  • the plastic carrier plate preferably has a material thickness of 1 mm to 1, 5 mm, preferably a material thickness of about 1, 2mm.
  • the plastic carrier plate is further preferably made of a hard plastic, preferably of a thermoplastic material.
  • the protective sheet itself has a lower material thickness compared with the plastic support plate, wherein the material thickness is preferably in a range of 0.10 mm to 0.25 mm.
  • the protective plate is further preferably made of a stainless steel, whereby a particularly advantageous and durable protective layer can be formed on the plastic carrier plate.
  • an adhesive film is preferably proposed as an adhesive layer, which can be easily removed without residue from the plastic support plate.
  • a preferred material thickness of the adhesive sheet is in the range of 0.05mm to 0.10mm, most preferably in the range of about 0.08mm.
  • claim 10 also claims a flexible support plate for use in the device according to the invention.
  • a method for positioning tools, in particular creasing and / or punching and / or perforation lines, in a printing unit and / or a coating unit of a rotary printing machine in which in a first method step at least one detachable with a transmission profile connected tool by means of the transfer profile according to a predetermined creasing and / or punching and / or perforation, preferably outside of the printing and / or coating, applied to a defined scale, in particular a defined line or grid line division, having basic cloth, in particular glued becomes.
  • a base cloth is formed for example by a corresponding scale having plastic film or plastic plate.
  • This base cloth is or is then clamped instead of a blanket or instead of a varnish on a blanket cylinder of the printing and / or coating plant, so then in a second step by appropriate actuation of the printing unit or coating unit and thus the rotary printing machine, the at least one tool, preferably with an impression cylinder associated with a counter-pressure cylinder and having an adhesive layer, is adhered to the exact position on the impression cylinder and accordingly released from the transfer profile.
  • Such an operation can be done, for example, in the backward-tipping mode.
  • a third method step the base cloth is then replaced by a plastic plate with an apron, as described above, so that a creasing, punching and / or perforating process can be carried out with the previously described advantages.
  • a set as claimed in the features of claim 12.
  • Such a set has at least the following components: - at least one base cloth with a defined scale,
  • At least one plastic plate with an apron according to claim 10, as described above With such a set and with such a process management, a very positionally accurate positioning of the respective tools on the impression cylinder can be ensured in a simple manner.
  • the risk of loss of individual lines is significantly reduced, whereby a high amount of time and loss of lines and of course a machine damage can be advantageously avoided.
  • the set further comprises a defined number of tools with a transmission profile, wherein it is preferably provided that both tool and transmission profile have an adhesive surface formed by an adhesive layer, which are preferably covered by a peelable protective film.
  • the base cloth is formed by a flexible plastic plate or plastic film, which is preferably transparent or translucent, so that the scale, which is attached to a cloth cylinder associated back of the ground cloth, preferably printed on the with the transfer profile can be fitted top of the base cloth is visible from.
  • a base cloth is formed by a flexible plastic plate or plastic film, which is preferably transparent or translucent, so that the scale, which is attached to a cloth cylinder associated back of the ground cloth, preferably printed on the with the transfer profile can be fitted top of the base cloth is visible from.
  • the life of such a base cloth can be significantly increased.
  • the Applicant expressly reserves the wording of corresponding independent patent claims therefor.
  • graduation it should also be expressly emphasized at this point that this term is to be understood in a broad sense and encompasses all line or grid line arrangements which enable a user to produce tools according to a desired creasing, punching and / or or stick perforation exact position.
  • a preferred scale can be formed by a millimeter division with a rectangular grid line arrangement.
  • the graduation is of course chosen so that it is precisely adapted to the particular type of machine in which the base cloth is used, in particular with regard to, for example, line spacing, which are predetermined according to cylinder diameter or tool diameter.
  • FIG. 2 is a plan view of a plastic carrier plate according to the invention together with mudguard,
  • Fig. 3 is a section along the line A-A of Fig. 2, and
  • Fig. 5 shows schematically a structure of a tool of line
  • FIG. 1 schematically shows a printing unit 1 of, for example, a sheet-fed offset printing machine as a printing machine, by means of which perforations, grooves, punched holes and / or punched holes are to be performed in the so-called hard-cut method.
  • the printing unit 1 comprises a known per se and not described in detail here plate cylinder 2, a blanket cylinder 3 and a counter-pressure cylinder. 4
  • the blanket cylinder 3 is arranged in a conventional manner between the plate cylinder 2 and the impression cylinder 4 and has as a holding device two clamping shafts 5, 6, by means of which instead of a blanket a plastic carrier plate 7 is clamped from a hard plastic, which in a plan view in FIG 2 is shown.
  • This plastic support plate 7 has at the, relative to the cylinder circumferential direction, opposite free Anlagenplattenend Schemeen in each case a clamping rail 8, by means of which the plastic support plate 7 is anchored in the clamping shafts 5, 6.
  • the plastic carrier plate 7 in direct connection to the clamping rails 8 here by way of example, extending in Zylinderachscardi and extending parallel to this groove-shaped carrier plate rail recess 9 as a defined Shinn-Spannschienenabknick Scheme , which, as can be seen in particular from FIG. 1, allows a simple and defined bending of the plastic carrier plate in the tension-rail-side bending region 10.
  • the plastic carrier plate 7 extends continuously between the two clamping rails 8 and has facing away from the blanket cylinder 3 Top of a stainless steel sheet 11 as an apron, which extends between two extending in Zylinderachsutter, here exemplarily continuous groove-shaped Druck vomausriserise 12 as defined Shinplatten- Druck michabknick Schemeen that in the shown in Fig. 1 unfolded state, the beginning of printing and a printing end of a pressure surface area defining, Tuchzylinderkanten 13, 14 are assigned so that these groove-shaped support plate Druck vomausEnglishungen defined kinks that exclude kinking and thus damage to the stainless steel sheet 11 on the plastic support plate 7 safely.
  • the groove-shaped carrier plate Druck vomausEnglishept 12 are exemplary here, as well as the groove-shaped carrier plate Spannschienen- recesses 9 in the top of the plastic support plate 7, which on the the rubber blanket cylinder 3 facing away from the plastic support plate 7 is formed; In principle, however, the groove-shaped carrier plate recesses can also be arranged and formed on the underside of the plastic carrier plate 7 facing the blanket cylinder 3.
  • the stainless steel sheet 11 extends here thus large and full surface between the two groove-shaped support plate Druck vomausnaturalept 12, wherein the stainless steel sheet 11, for example, has a thickness of 0.17 mm, by means of a thin, here for example a material thickness of 0.08mm having adhesive film 16th on the example, a material thickness of 1, 2mm having plastic support plate 7 is detachably and detachably adhered.
  • exemplary triangular recesses 17 may be provided, which serve in addition to the groove-shaped support plate pressure surface recesses 12 for printing surface marking.
  • the applied to the plastic support plate 7 stainless steel sheet 11 has the advantage of a hard, replaceable surface against, for example, perforation, punching, grooving or the like. As a result, a clean perforation or punching result can be achieved.
  • a base cloth 18 is shown, which is formed by a flexible plastic plate or flexible plastic film having at the opposite ends in the cylinder circumferential direction clamping rails 8, by means of which the base cloth instead of a Blanket can be clamped analogously to the plastic carrier plate 7 on the blanket cylinder 3.
  • the base cloth 18 is formed translucent or translucent and has on a rubber blanket cylinder 3 in the assembled state facing back 19 here only extremely schematically and shown in broken lines printing with a defined scale, for example, a millimeter grid line on.
  • a tool positioning according to a predetermined, defined creasing and / or punching and / or Perforationsmuster can be done conveniently and positionally accurate outside the printing unit 1.
  • the tool 22 as shown in FIG. 5 only schematically and by way of example, a transfer profile 23 which is provided with an adhesive layer 24 which is covered with a protective film 25.
  • the transmission profile 23 is detachably connected with a defined holding force with the actual tool, for example a perforation line 26, which on its side facing away from the transmission profile also with a Adhesive layer 27 is provided, which is covered by a protective film 28.
  • the protective film 25 is first detached from the adhesive layer 24 of the transfer profile 23 and adhered to the base cloth according to a perforation pattern defined in the example chosen here. After sticking the tool 22, the protective film 28 is peeled off from the adhesive layer 27 of the exemplary perforation line 26 here and the base cloth 18 is clamped instead of a blanket on the blanket cylinder 3 of the printing unit 1.
  • the rotary printing machine is actuated under pressure, for example, in the backward toggle operation, so that then the perforation line 26 adheres to the impression cylinder 4 with exact position. It goes without saying that the connection force between the perforation line 26 and the transfer profile 23 must of course be less than the adhesive force between the adhesive layer 27 and the impression cylinder 4.

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  • Supply, Installation And Extraction Of Printed Sheets Or Plates (AREA)

Abstract

L'invention concerne un dispositif de perforation et/ou de rainage et/ou de poinçonnage pour machines d'impression rotatives, comprenant au moins une unité d'impression (1) et/ou une unité de revêtement laque qui présente un cylindre en tissu formé par un cylindre blanchet ou par un cylindre d'enduction laque, dotée d'un dispositif de retenue (5, 6) pour une couverture en caoutchouc ou une couverture laque ayant l'élasticité du caoutchouc, une couche support non élastique ou dure, mais toutefois élastique au moins dans le sens périphérique du cylindre, étant tendue sur le cylindre en tissu (3), à la place de la couverture en caoutchouc ou de la couverture laque, ladite couche support étant pourvue, sur sa partie supérieure opposée au cylindre en tissu (3), d'une couche de protection. L'invention est caractérisée en ce que la couche support est formée par une plaque en matière plastique (7) sur laquelle est appliquée une tôle de protection (11), en tant que couche de protection, associée à une zone de pression de surface déterminée du cylindre blanchet (5). L'invention concerne en outre un procédé de positionnement des outils, et un ensemble pour la mise en oeuvre d'un tel procédé.
PCT/EP2010/002980 2010-05-14 2010-05-14 Dispositif de perforation et/ou de rainage et/ou de poinçonnage pour machines d'impression rotatives WO2011141041A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/EP2010/002980 WO2011141041A1 (fr) 2010-05-14 2010-05-14 Dispositif de perforation et/ou de rainage et/ou de poinçonnage pour machines d'impression rotatives

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/EP2010/002980 WO2011141041A1 (fr) 2010-05-14 2010-05-14 Dispositif de perforation et/ou de rainage et/ou de poinçonnage pour machines d'impression rotatives

Publications (1)

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WO2011141041A1 true WO2011141041A1 (fr) 2011-11-17

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PCT/EP2010/002980 WO2011141041A1 (fr) 2010-05-14 2010-05-14 Dispositif de perforation et/ou de rainage et/ou de poinçonnage pour machines d'impression rotatives

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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0670782A1 (fr) * 1993-09-24 1995-09-13 Walter Fruttiger Dispositif de perforation ou de coupe pour une machine d'impression offset
EP0739731A1 (fr) * 1995-04-25 1996-10-30 Ruprecht Handels AG Dispositif d'impression pour réaliser des perforations et/ou des découpages pour des machines d'impression de feuilles offset
US6267053B1 (en) * 1998-11-16 2001-07-31 Environmental Specialties Inc. Perf/score shell for presses
CH699397A2 (de) * 2008-08-22 2010-02-26 Ppp Internat Ag Verfahren und Vorrichtung zum Perforieren, Stanzen, Schneiden und Rillen.

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0670782A1 (fr) * 1993-09-24 1995-09-13 Walter Fruttiger Dispositif de perforation ou de coupe pour une machine d'impression offset
EP0739731A1 (fr) * 1995-04-25 1996-10-30 Ruprecht Handels AG Dispositif d'impression pour réaliser des perforations et/ou des découpages pour des machines d'impression de feuilles offset
US6267053B1 (en) * 1998-11-16 2001-07-31 Environmental Specialties Inc. Perf/score shell for presses
CH699397A2 (de) * 2008-08-22 2010-02-26 Ppp Internat Ag Verfahren und Vorrichtung zum Perforieren, Stanzen, Schneiden und Rillen.

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