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EP1309445A1 - Method for positioning a male mould on a counter-pressure cylinder of an embossing station - Google Patents

Method for positioning a male mould on a counter-pressure cylinder of an embossing station

Info

Publication number
EP1309445A1
EP1309445A1 EP01969218A EP01969218A EP1309445A1 EP 1309445 A1 EP1309445 A1 EP 1309445A1 EP 01969218 A EP01969218 A EP 01969218A EP 01969218 A EP01969218 A EP 01969218A EP 1309445 A1 EP1309445 A1 EP 1309445A1
Authority
EP
European Patent Office
Prior art keywords
male
counter
transfer
roller
pressure roller
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP01969218A
Other languages
German (de)
French (fr)
Other versions
EP1309445B1 (en
Inventor
Herbert Moll
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.)
Hinderer and Muehlich KG
Original Assignee
Hinderer and Muehlich KG
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 Hinderer and Muehlich KG filed Critical Hinderer and Muehlich KG
Publication of EP1309445A1 publication Critical patent/EP1309445A1/en
Application granted granted Critical
Publication of EP1309445B1 publication Critical patent/EP1309445B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B44—DECORATIVE ARTS
    • B44B—MACHINES, APPARATUS OR TOOLS FOR ARTISTIC WORK, e.g. FOR SCULPTURING, GUILLOCHING, CARVING, BRANDING, INLAYING
    • B44B5/00—Machines or apparatus for embossing decorations or marks, e.g. embossing coins
    • B44B5/0004—Machines or apparatus for embossing decorations or marks, e.g. embossing coins characterised by the movement of the embossing tool(s), or the movement of the work, during the embossing operation
    • B44B5/0009—Rotating embossing tools
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31F—MECHANICAL WORKING OR DEFORMATION OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31F1/00—Mechanical deformation without removing material, e.g. in combination with laminating
    • B31F1/07—Embossing, i.e. producing impressions formed by locally deep-drawing, e.g. using rolls provided with complementary profiles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31F—MECHANICAL WORKING OR DEFORMATION OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31F2201/00—Mechanical deformation of paper or cardboard without removing material
    • B31F2201/07—Embossing
    • B31F2201/0707—Embossing by tools working continuously
    • B31F2201/0715—The tools being rollers
    • B31F2201/0723—Characteristics of the rollers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31F—MECHANICAL WORKING OR DEFORMATION OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31F2201/00—Mechanical deformation of paper or cardboard without removing material
    • B31F2201/07—Embossing
    • B31F2201/0707—Embossing by tools working continuously
    • B31F2201/0754—The tools being other than rollers, e.g. belts or plates
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31F—MECHANICAL WORKING OR DEFORMATION OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31F2201/00—Mechanical deformation of paper or cardboard without removing material
    • B31F2201/07—Embossing
    • B31F2201/0771—Other aspects of the embossing operations
    • B31F2201/0776—Exchanging embossing tools
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S101/00—Printing
    • Y10S101/36—Means for registering or alignment of print plates on print press structure

Definitions

  • the invention relates to a method for the precise positioning of a male part on a counter-pressure roller of an embossing station which interacts with an embossing roller, the embossing roller having a stamp on its cylinder jacket surface with a stamp relief structure and the male part formed with a male relief structure structurally corresponding to the Stempei relief structure the cylindrical surface of the counter-pressure roller to the punch is positioned precisely on the cylindrical surface of the embossing roller.
  • a male part which consists of a thin, flexible, ie bendable and archable material, in order to be able to temporarily attach the male part to the stamp provided on the cylindrical surface of the embossing roller.
  • the male part temporarily fixed on the stamp of the embossing roller is then transferred from the embossing roller to the counter-pressure roller during a simultaneous rotation of the embossing roller and the counter-pressure roller and is fixed on the cylindrical surface of the counter-pressure roller.
  • the male part is arched from the direction of curvature of the embossing roller into the opposite direction of curvature of the counterpressure roller, which is why the male part must therefore be correspondingly flexible, ie bendable or archable.
  • the embossing station assembled in this way with the stamp on the embossing roller and the male on the counter-pressure roller is then available for carrying out relief embossing, for example to structure paper with a relief and at the same time to emboss it with an embossing film.
  • relief embossing for example to structure paper with a relief and at the same time to emboss it with an embossing film.
  • the invention has for its object to provide a method of the type mentioned, in which the contradiction between pressure stability and hardness of the male part with the requirement for its flexibility and curvature is eliminated in a simple manner.
  • a thin, flexible, flexible transfer patrix is temporarily positioned precisely on the stamp of the embossing roller and has a register window that transfers the transfer patrix from the embossing roller to the counter-pressure roller and to the counter-pressure roller is fixed, the embossing roller and the counter-pressure roller being driven in rotation in opposite directions at mutually corresponding circumferential speeds, and in that the patrix is then fastened to fit in the registration window of the transfer patrix fixed to the counter-pressure roller, the patrix formed with the male-relief structure structuring consisting of a thin, dimensionally stable material, which has a curvature corresponding to the curvature of the cylindrical surface of the counter-pressure roller.
  • a thin, flexible, flexible transfer male and a dimensionally stable male are used.
  • the transfer patrix is only used to determine the position for the dimensionally stable patrix that exactly matches the stamp of the embossing roller.
  • the transfer patrix can therefore advantageously consist of a flexible, flexible material.
  • the patrix prefabricated with the patrice relief structure advantageously consists of a dimensionally stable material.
  • a transfer patrix is preferably used which has a synthetic resin layer on a base fabric, the synthetic resin layer forming a frame on the base fabric, through which the register window for the patrix made of dimensionally stable material is delimited. It is preferred if the synthetic resin layer has a thickness that corresponds to the thickness of the male. Such a design ensures that the patrix formed with the patrix relief structure and the synthetic resin layer forming a frame around the patrix merge into one another in a stepless and continuous manner, which has a positive effect on the embossing properties of the embossing station.
  • a transfer male can be used in the method according to the invention, the base fabric being a glass fiber fabric and the synthetic resin layer being an epoxy resin layer.
  • Such transfer patrices have an optimal service life.
  • Cylinder surface of the counter-pressure roller is glued.
  • the transfer patrix and / or the cylindrical surface of the counter-pressure roller can be provided with a suitable adhesive.
  • the prefabricated male part which has a cylinder curvature corresponding to the curvature of the cylindrical surface of the counter-pressure roller, is made of dimensionally stable material, which is, for example, brass or the like, is stuck in the register window of the transfer male part.
  • the method according to the invention results in an embossing station for relief structuring and embossing suitable sheet or web material such as paper or the like, the embossing station with an excellent service life enabling precise working, ie structuring and embossing. More details, features and advantages result from the following description of an embodiment of the method according to the invention or the essential method step of the same, which is illustrated in a highly schematic manner in the drawing. Show it:
  • FIG. 1A shows a first method step of the invention
  • FIG. 1B shows a second process step following the first process step according to FIG. 1A
  • FIG. 1C shows a third method step following the method step according to FIG. 1B
  • FIG. 2 shows a sectional illustration of a transfer male on an enlarged scale, not to scale
  • FIG. 3 shows the transfer male according to Figure 2 in the on
  • Figure 4 shows the embossing station manufactured according to the invention during its
  • FIG. 1A schematically illustrates an embossing station 10 with an embossing roller 12 and with a counter-pressure roller 14.
  • a stamp 18 is provided on the cylinder jacket surface 16 of the embossing roller 12, which is designed with a stamp relief structure 20. Of course, more than one stamp 18 can be provided on the cylindrical surface 16 of the embossing roller 12.
  • Fastening elements 22 are temporarily attached to the stamp 18, as are known, for example, from DE 19541 170 C2 of the applicant. With the aid of the fastening elements 22, a transfer male 24 is temporarily fixed on the stamp 18, which is not drawn to scale in FIG.
  • the transfer patrix 24 has a base fabric 26 and a synthetic resin layer 28 on the base fabric, which forms a peripheral frame 30.
  • a frame window 32 for a male 34 made of a dimensionally stable material is limited and fixed by the frame 30.
  • the transfer patrix 24 is formed with through holes 36 (see FIG. 2) for the fastening elements 22.
  • the transfer patrix 24 is attached to the stamp 18 of the embossing roller 12 in such a way that the synthetic resin layer 28 designed as a frame 30 faces the stamp 18.
  • the registration window 32 can be filled with a filling material such as paper.
  • the embossing roller 12 and the counter-pressure roller 14 of the embossing station 10 are rotatably driven in opposite directions at mutually corresponding peripheral speeds.
  • This is indicated in Figure 1A by the two arcuate arrows 38.
  • the transfer patrix 24 is transferred from the embossing roller 12 to the counter-pressure roller 14.
  • Figure 1C The transfer patrix 24 is fixed on the cylinder surface 40 of the counter-pressure roller 14 in exactly the correct position with respect to the stamp 18 of the embossing roller 12.
  • FIGS. 1B and 1C by the double dash-dotted lines 42 and the associated circumferential angles, which are illustrated by the curved arrows 44.
  • the thin flexible and flexible transfer male 24 is fixed to the cylinder surface of the counter-pressure roller 14, for example, by adhesive bonding.
  • the counter-pressure roller 14 is stopped.
  • the prefabricated patrix 46 is made from a thin, dimensionally stable one in the register window 32 of the transfer patrix 24 Material (see Figure 1C) fixed exactly positioned.
  • the patrix 46 can also be fixed in the registration window 32 of the transfer patrix 24 by gluing.
  • the insertion of the prefabricated patrix 46, which is formed with a patrice relief structure 48, into the registration window 32 of the transfer patrix 24 fixed to the cylindrical surface 40 of the counter-pressure roller 14 is indicated in FIG. 1C and in FIG.
  • the male relief structure 48 of the male 34 is negatively adapted to the stamp relief structure 20 of the stamp 18 of the embossing roller 12. If the stamp relief structure 20 forms a positive shape, the male relief structure 48 forms the corresponding negative shape, and vice versa.
  • the counter-pressure roller 14 is drawn in sections.
  • FIG. 3 also shows that the dimensionally stable male part 34 is formed with a semi-cylindrical concavely curved inner surface 52, the curvature R of which corresponds exactly to the curvature R of the cylindrical surface 40 of the counter pressure surface 14.
  • the dimensionally stable male part 34 has a wall thickness D which corresponds exactly to the wall thickness D of the synthetic resin layer 28 of the transfer male part 24.
  • the dimensionally stable male 30 is inserted into the register window 32 of the transfer male 24 with a precise fit and fixed in the register window 32 by means of an adhesive.
  • the embossing station 10 prepared or assembled in this way is then available for structuring and embossing, as can be seen from FIG.
  • a swivel castor 54 is provided on the side next to the expediently heatable embossing roller 12 of the embossing station 10 and a second swivel castor 56 is provided on the side next to the counter-pressure roller 14.
  • a web of paper 58 is fed around the steering roller 56 and an embossing film web 60 is fed to the embossing station 10 around the steering roller 54.
  • the embossing roller 12 and the counter-pressure roller 14 of the embossing station 10 are driven in rotation.
  • the web of paper 58 and the embossing film web 60 are moved simultaneously through the embossing station 10.
  • the paper web 58 is structured by the stamp 18 and the male part 34 and at the same time the decorative layer 62 of the embossing film 60 facing the paper web 58 is embossed onto the paper web 58.
  • the structured paper web 58 embossed with the decorative layer 62 is designated in FIG. 4 downstream after the embossing roller 12 with the reference number 64.
  • the carrier of the stamping film 60 detached from the stamping film 60 downstream after the stamping station is identified by the reference number 66.
  • the same details are given the same reference numerals in FIGS. 1 to 4, so that it is unnecessary to describe all details in detail in connection with the figures.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Shaping Of Tube Ends By Bending Or Straightening (AREA)
  • Treatment Of Fiber Materials (AREA)
  • Chemical And Physical Treatments For Wood And The Like (AREA)
  • Soil Working Implements (AREA)
  • Blow-Moulding Or Thermoforming Of Plastics Or The Like (AREA)
  • Automobile Manufacture Line, Endless Track Vehicle, Trailer (AREA)
  • Lining Or Joining Of Plastics Or The Like (AREA)

Abstract

Describe is a method of positioning a male die member (34) on a backing rolled (14) of a stamping station (10), which backing roller co-operates with a stamping roller (12), wherein the stamping roller (12) has a die (18). Temporarily fixed to the die (18) of the stamping roller (12) is a flexible transfer male die member (24) having a fitting window (32). The transfer male member (24) is transferred from the stamping roller (12) to the backing roller (14) and fixed to the backing roller (14). The male die member (34) is then fixed in accurately fitting relationship in the fitting window (32) of the transfer male die member (24).

Description

Verfahren zum Positionieren einer Patrize an einer Gegendruckwalze einer PrägestationMethod for positioning a male on a counter-pressure roller of an embossing station
Die Erfindung betrifft ein Verfahren zur präzisen Positionierung einer Patrize an einer mit einer Prägewalze zusammenwirkenden Gegendruckwalze einer Prägestation, wobei die Prägewalze an ihrer Zylindermantelfläche einen Stempel mit einer Stempel- Reliefstrukturierung aufweist und die mit einer der Stempei-Reliefstrukturierung negativ entsprechenden Patrizen-Reliefstrukturierung ausgebildete Patrize an der Zylindermantelfläche der Gegendruckwalze zum Stempel an der Zylindermantelfläche der Prägewalze passgenau positioniert wird.The invention relates to a method for the precise positioning of a male part on a counter-pressure roller of an embossing station which interacts with an embossing roller, the embossing roller having a stamp on its cylinder jacket surface with a stamp relief structure and the male part formed with a male relief structure structurally corresponding to the Stempei relief structure the cylindrical surface of the counter-pressure roller to the punch is positioned precisely on the cylindrical surface of the embossing roller.
Bei einem solchen bekannten Verfahren kommt eine Patrize zur Anwendung, die aus einem dünnen, flexiblen, d.h. biegbaren und wölbbaren Material besteht, um die Patrize auf dem an der Zylindermantelfläche der Prägewalze vorgesehenen Stempel temporär anbringen zu können. Die am Stempel der Prägewalze temporär festgelegte Patrize wird dann während einer simultanen Drehung der Prägewalze und der Gegendruckwalze von der Prägewalze zur Gegendruckwalze transferiert und an der Zylindermantelfläche der Gegendruckwalze fixiert. Während dieses Transfers wird die Patrize von der Wölbungsrichtung der Prägewalze in die dazu entgegengesetzte Wölbungsrichtung der Gegendruckwalze gewölbt, weshalb die Patrize also entsprechend flexibel, d.h. biegbar bzw. wölbbar sein muss. Die solchermaßen assemblierte Prägestation mit dem Stempel an der Prägewalze und der Patrize an der Gegendruckwalze steht dann zur Durchführung von Reliefprägungen zur Verfügung, um z.B. Papier mit einem Relief zu strukturieren und gleichzeitig mit einer Prägefolie zu beprägen. Zur Durchführung eines solchen Relief- Prägevorgangs ist es jedoch erforderlich, daß nicht nur der Stempel der Prägewalze, sondern auch die Patrize der Gegendruckwalze entsprechend druckstabil und hart ist. Diese Anforderung an die Druckstabilität und Härte steht in einem Widerspruch zur Anforderung an die Biegsamkeit und Wirkbarkeit der Patrize, woraus entsprechende Einschränkungen resultieren.In such a known method, a male part is used which consists of a thin, flexible, ie bendable and archable material, in order to be able to temporarily attach the male part to the stamp provided on the cylindrical surface of the embossing roller. The male part temporarily fixed on the stamp of the embossing roller is then transferred from the embossing roller to the counter-pressure roller during a simultaneous rotation of the embossing roller and the counter-pressure roller and is fixed on the cylindrical surface of the counter-pressure roller. During this transfer, the male part is arched from the direction of curvature of the embossing roller into the opposite direction of curvature of the counterpressure roller, which is why the male part must therefore be correspondingly flexible, ie bendable or archable. The embossing station assembled in this way with the stamp on the embossing roller and the male on the counter-pressure roller is then available for carrying out relief embossing, for example to structure paper with a relief and at the same time to emboss it with an embossing film. To carry out such a relief embossing process, however, it is necessary that not only the stamp of the embossing roller but also the male part of the counter-pressure roller is correspondingly pressure-stable and hard. This requirement for pressure stability and hardness contradicts the requirement for flexibility and effectiveness of the male part, which results in corresponding restrictions.
Der Erfindung liegt die Aufgabe zugrunde, ein Verfahren der eingangs genannten Art zu schaffen, bei welchem der Widerspruch zwischen Druckstabilität und Härte der Patrize mit der Anforderung an ihre Biegbarkeit und Wölbbarkeit auf einfache Weise eliminiert ist.The invention has for its object to provide a method of the type mentioned, in which the contradiction between pressure stability and hardness of the male part with the requirement for its flexibility and curvature is eliminated in a simple manner.
Diese Aufgabe wird bei einem Verfahren der eingangs genannten Art erfindungsgemäß dadurch gelöst, daß am Stempel der Prägewalze eine dünne, flexible, biegsame Transferpatrize genau positioniert temporär befestigt wird, die ein Passerfenster aufweist, daß die Transferpatrize von der Prägewalze zur Gegendruckwalze transferiert und an der Gegendruckwalze fixiert wird, wobei die Prägewalze und die Gegendruckwalze mit einander entsprechenden Umfangsgeschwindigkeiten zu einander entgegengesetzt rotativ angetrieben werden, und daß im Passerfenster der an der Gegendruckwalze fixierten Transferpatrize anschließend die Patrize passgenau befestigt wird, wobei die mit der Patrizen- Reliefstrukturierung ausgebildete Patrize aus einem dünnen, formstabilen Material besteht, das eine der Krümmung der Zylindermantelfläche der Gegendruckwalze entsprechende Zylinderkrümmung aufweist.This object is achieved according to the invention in a method of the type mentioned at the outset in that a thin, flexible, flexible transfer patrix is temporarily positioned precisely on the stamp of the embossing roller and has a register window that transfers the transfer patrix from the embossing roller to the counter-pressure roller and to the counter-pressure roller is fixed, the embossing roller and the counter-pressure roller being driven in rotation in opposite directions at mutually corresponding circumferential speeds, and in that the patrix is then fastened to fit in the registration window of the transfer patrix fixed to the counter-pressure roller, the patrix formed with the male-relief structure structuring consisting of a thin, dimensionally stable material, which has a curvature corresponding to the curvature of the cylindrical surface of the counter-pressure roller.
Bei dem erfindungsgemäßen Verfahren kommt eine dünne, flexible, biegsame Transferpatrize sowie eine formstabile Patrize zur Anwendung. Die Transferpatrize dient nur dazu, an der Gegendruckwalze die dem Stempel der Prägewalze passgenau entsprechende Position für die formstabile Patrize festzulegen. Die Transferpatrize kann also in vorteilhafter Weise aus einem flexiblen, biegsamen Material bestehen. Die mit der Patrizen-Reliefstrukturierung vorgefertigte Patrize besteht in vorteilhafter Weise aus einem formstabilen Material. Der oben erwähnte Widerspruch zwischen der Flexibilität und Biegsamkeit bzw. Wötbbarkeit und der Druckstabilität und Härte bekannter Patrizen ist erfindungsgemäß in vorteilhafter Weise eliminiert.In the method according to the invention, a thin, flexible, flexible transfer male and a dimensionally stable male are used. The transfer patrix is only used to determine the position for the dimensionally stable patrix that exactly matches the stamp of the embossing roller. The transfer patrix can therefore advantageously consist of a flexible, flexible material. The patrix prefabricated with the patrice relief structure advantageously consists of a dimensionally stable material. The above-mentioned contradiction between the flexibility and flexibility or bendability and the pressure stability and hardness of known patrices is advantageously eliminated according to the invention.
Bei dem erfindungsgemäßen Verfahren kommt vorzugsweise eine Transferpatrize zur Verwendung, die auf einem Grundgewebe eine Kunstharzschicht aufweist, wobei die Kunstharzschicht auf dem Grundgewebe einen Rahmen bildet, durch den das Passerfenster für die Patrize aus formstabilem Material definiert begrenzt ist. Dabei ist es bevorzugt, wenn die Kunstharzschicht eine Dicke besitzt, die der Dicke der Patrize entspricht. Durch eine solche Ausbildung wird erreicht, daß die mit der Patrizen- Reliefstrukturierung ausgebildete Patrize und die einen Rahmen um die Patrize herum bildende Kunstharzschicht stufenlos und absatzlos ineinander übergehen, was sich auf die Prägeeigenschaften der Prägestation positiv auswirkt.In the method according to the invention, a transfer patrix is preferably used which has a synthetic resin layer on a base fabric, the synthetic resin layer forming a frame on the base fabric, through which the register window for the patrix made of dimensionally stable material is delimited. It is preferred if the synthetic resin layer has a thickness that corresponds to the thickness of the male. Such a design ensures that the patrix formed with the patrix relief structure and the synthetic resin layer forming a frame around the patrix merge into one another in a stepless and continuous manner, which has a positive effect on the embossing properties of the embossing station.
Bei dem erfindungsgemäßen Verfahren kann eine Transferpatrize verwendet werden, wobei das Grundgewebe ein Glasfasergewebe und die Kunstharzschicht eine Epoxidharzschicht ist. Derartige Transferpatrizen weisen eine optimale Standzeit auf.A transfer male can be used in the method according to the invention, the base fabric being a glass fiber fabric and the synthetic resin layer being an epoxy resin layer. Such transfer patrices have an optimal service life.
Vorteilhaft ist es, wenn die Transferpatrize mit ihrem Grundgewebe an derIt is advantageous if the transfer patrix with its base tissue on the
Zylindermantelfläche der Gegendruckwalze festgeklebt wird. Zu diesem Zwecke kann die Transferpatrize und/oder die Zylindermantelfläche der Gegendruckwalze mit einem geeigneten Kleber versehen sein. Desgleichen ist es zweckmäßig, wenn die vorgefertigte und eine der Krümmung der Zylindermantelfläche der Gegendruckwalze entsprechende Zylinderkrümmung aufweisende Patrize aus formstabilem Material, bei dem es sich beispielsweise um Messing oder dergl. handelt, im Passerfenster der Transferpatrize festgeklebt wird.Cylinder surface of the counter-pressure roller is glued. For this purpose, the transfer patrix and / or the cylindrical surface of the counter-pressure roller can be provided with a suitable adhesive. Likewise, it is expedient if the prefabricated male part, which has a cylinder curvature corresponding to the curvature of the cylindrical surface of the counter-pressure roller, is made of dimensionally stable material, which is, for example, brass or the like, is stuck in the register window of the transfer male part.
Aus dem erfindungsgemäßen Verfahren resultiert eine Prägestation zum Reliefstrukturieren und Prägen geeigneten Blatt- oder Bahnmaterials wie Papier oder dergleichen, wobei die Prägestation mit einer ausgezeichneten Standzeit ein präzises Arbeiten, d.h. Strukturieren und Prägen ermöglicht. Weitere Einzelheiten, Merkmale und Vorteile ergeben sich aus der nachfolgenden Beschreibung eines in der Zeichnung stark schematisiert verdeutlichten Ausführungsbeispiels des erfindungsgemäßen Verfahrens bzw. wesentlichen Verfahrensschritts desselben. Es zeigen:The method according to the invention results in an embossing station for relief structuring and embossing suitable sheet or web material such as paper or the like, the embossing station with an excellent service life enabling precise working, ie structuring and embossing. More details, features and advantages result from the following description of an embodiment of the method according to the invention or the essential method step of the same, which is illustrated in a highly schematic manner in the drawing. Show it:
Figur 1 A einen ersten Verfahrensschritt des erfindungsgemäßen1A shows a first method step of the invention
Verfahrens,process
Figur 1 B einen an den ersten Verfahrensschritt gemäß Figur 1 A anschließenden zweiten Verfahrensschritt,1B shows a second process step following the first process step according to FIG. 1A,
Figur 1 C einen an den Verfahrensschritt gemäß Figur 1 B anschließenden dritten Verfahrensschritt,1C shows a third method step following the method step according to FIG. 1B,
Figur 2 eine Schnittdarstellung einer Transferpatrize in einem vergrößerten Maßstab, nicht maßstabsgetreu,FIG. 2 shows a sectional illustration of a transfer male on an enlarged scale, not to scale,
Figur 3 die Transferpatrize gemäß Figur 2 in dem an derFigure 3 shows the transfer male according to Figure 2 in the on
Gegendruckwalze fixierten Zustand gemeinsam mit der davon beabstandet gezeichneten vorgefertigten Patrize aus formstabilem Material, undCounter-pressure roller fixed state together with the prefabricated male part of dimensionally stable material, and
Figur 4 die erfindungsgemäß hergestellte Prägestation während ihresFigure 4 shows the embossing station manufactured according to the invention during its
Betriebes zum Strukturieren und Beprägen eines Bahn- oder Blattmaterials mit einer Prägefolie.Company for structuring and stamping a web or sheet material with an embossing film.
Figur 1 A verdeutlicht schematisch eine Prägestation 10 mit einer Prägewalze 12 und mit einer Gegendruckwalze 14. An der Zylindermantelfläche 16 der Prägewalze 12 ist ein Stempel 18 vorgesehen, der mit einer Stempel-Reliefstrukturierung 20 ausgebildet ist. An der Zylindermantelfläche 16 der Prägewalze 12 können selbstverständlich mehr als ein Stempel 18 vorgesehen sein. Am Stempel 18 sind temporär Befestigungselemente 22 angebracht, wie sie bspw. aus der DE 19541 170 C2 der Anmelderin bekannt sind. Mit Hilfe der Befestigungselemente 22 ist auf dem Stempel 18 temporär eine Transferpatrize 24 festgelegt, die in Figur 2 längs geschnitten nicht maßstabsgetreu gezeichnet ist. Die Transferpatrize 24 weist ein Grundgewebe 26 und auf dem Grundgewebe eine Kunstharzschicht 28 auf, die einen umlaufenden Rahmen 30 bildet. Durch den Rahmen 30 wird ein Passerfenster 32 für eine Patrize 34 aus einem formstabilen Material (siehe Figur 3) begrenzt und festgelegt.FIG. 1A schematically illustrates an embossing station 10 with an embossing roller 12 and with a counter-pressure roller 14. A stamp 18 is provided on the cylinder jacket surface 16 of the embossing roller 12, which is designed with a stamp relief structure 20. Of course, more than one stamp 18 can be provided on the cylindrical surface 16 of the embossing roller 12. Fastening elements 22 are temporarily attached to the stamp 18, as are known, for example, from DE 19541 170 C2 of the applicant. With the aid of the fastening elements 22, a transfer male 24 is temporarily fixed on the stamp 18, which is not drawn to scale in FIG. The transfer patrix 24 has a base fabric 26 and a synthetic resin layer 28 on the base fabric, which forms a peripheral frame 30. A frame window 32 for a male 34 made of a dimensionally stable material (see FIG. 3) is limited and fixed by the frame 30.
Die Transferpatrize 24 ist mit Durchgangslöchern 36 (siehe Figur 2) für die Befestigungselemente 22 ausgebildet.The transfer patrix 24 is formed with through holes 36 (see FIG. 2) for the fastening elements 22.
Die Transferpatrize 24 wird auf dem Stempel 18 der Prägewalze 12 derartig angebracht, daß die als Rahmen 30 ausgebildete Kunstharzschicht 28 dem Stempel 18 zugewandt ist. Das Passerfenster 32 kann mit einem Füllmaterial, wie Papier, gefüllt sein.The transfer patrix 24 is attached to the stamp 18 of the embossing roller 12 in such a way that the synthetic resin layer 28 designed as a frame 30 faces the stamp 18. The registration window 32 can be filled with a filling material such as paper.
Nach dem Anbringen der Transferpatrize 24 am Stempel 18 werden die Prägewalze 12 und die Gegendruckwalze 14 der Prägestation 10 mit einander entsprechenden Umfangsgeschwindigkeiten zueinander entgegengesetzt rotativ angetrieben. Das ist in Figur 1A durch die beiden bogenförmigen Pfeile 38 angedeutet. Infolge dieser simultanen Rotation wird die Transferpatrize 24 von der Prägewalze 12 zur Gegendruckwalze 14 transferiert. Das ist in Figur 1C verdeutlicht. Die Transferpatrize 24 wird an der Zylinderoberfläche 40 der Gegendruckwalze 14 in Bezug auf den Stempel 18 der Prägewalze 12 genau richtig positioniert fixiert. Das ist in Figur 1B und 1 C durch die doppelt strichpunktierten Linien 42 und die zugehörigen Umfangswinkel angedeutet, die durch die bogenförmigen Pfeile 44 verdeutlicht sind.After the transfer patrix 24 has been attached to the stamp 18, the embossing roller 12 and the counter-pressure roller 14 of the embossing station 10 are rotatably driven in opposite directions at mutually corresponding peripheral speeds. This is indicated in Figure 1A by the two arcuate arrows 38. As a result of this simultaneous rotation, the transfer patrix 24 is transferred from the embossing roller 12 to the counter-pressure roller 14. This is illustrated in Figure 1C. The transfer patrix 24 is fixed on the cylinder surface 40 of the counter-pressure roller 14 in exactly the correct position with respect to the stamp 18 of the embossing roller 12. This is indicated in FIGS. 1B and 1C by the double dash-dotted lines 42 and the associated circumferential angles, which are illustrated by the curved arrows 44.
Die Fixierung der dünnen flexiblen und biegsamen Transferpatrize 24 an der Zylinderoberfläche der Gegendruckwalze 14 erfolgt bspw. durch eine Klebung. Nach der Fixierung der Transferpatrize 24 wird die Gegendruckwalze 14 gestoppt. Danach wird - nach dem Entfernen des Füllmateriales - im Passerfenster 32 der Transferpatrize 24 eine vorgefertigte Patrize 46 aus einem dünnen formstabilen Material (siehe Figur 1C) genau positioniert fixiert. Die Fixierung der Patrize 46 im Passerfenster 32 der Transferpatrize 24 kann ebenfalls durch eine Klebung erfolgen. Das Einsetzen der vorgefertigten, mit einer Patrizen-Reliefstrukturierung 48 ausgebildeten Patrize 46 in das Passerfenster 32 der an der Zylindermantelfläche 40 der Gegendruckwalze 14 fixierten Transferpatrize 24 ist in Figur 1C sowie in Figur 3 durch den Pfeil 50 angedeutet. Die Patrizen-Reliefstrukturierung 48 der Patrize 34 ist an die Stempel-Reliefstrukturierung 20 des Stempels 18 der Prägewalze 12 negativ angepaßt. Bildet die Stempel-Reliefstrukturierung 20 eine Positivform so bildet die Patrizen-Reliefstrukturierung 48 die entsprechende Negativform, und umgekehrt. In Figur 3 ist die Gegendruckwalze 14 abschnittweise gezeichnet. Die Figur 3 verdeutlicht außerdem, daß die formstabile Patrize 34 mit einer teiizylindrisch konkav gekrümmten Innenfläche 52 ausgebildet ist, deren Krümmung R der Krümmung R der Zylindermantelfläche 40 der Gegendruckfläche 14 genau entspricht. Außerdem weist die formstabile Patrize 34 eine Wanddicke D auf, die der Wanddicke D der Kunstharzschicht 28 der Transferpatrize 24 genau entspricht.The thin flexible and flexible transfer male 24 is fixed to the cylinder surface of the counter-pressure roller 14, for example, by adhesive bonding. After the transfer patrix 24 has been fixed, the counter-pressure roller 14 is stopped. Then - after removing the filler material - the prefabricated patrix 46 is made from a thin, dimensionally stable one in the register window 32 of the transfer patrix 24 Material (see Figure 1C) fixed exactly positioned. The patrix 46 can also be fixed in the registration window 32 of the transfer patrix 24 by gluing. The insertion of the prefabricated patrix 46, which is formed with a patrice relief structure 48, into the registration window 32 of the transfer patrix 24 fixed to the cylindrical surface 40 of the counter-pressure roller 14 is indicated in FIG. 1C and in FIG. 3 by the arrow 50. The male relief structure 48 of the male 34 is negatively adapted to the stamp relief structure 20 of the stamp 18 of the embossing roller 12. If the stamp relief structure 20 forms a positive shape, the male relief structure 48 forms the corresponding negative shape, and vice versa. In Figure 3, the counter-pressure roller 14 is drawn in sections. FIG. 3 also shows that the dimensionally stable male part 34 is formed with a semi-cylindrical concavely curved inner surface 52, the curvature R of which corresponds exactly to the curvature R of the cylindrical surface 40 of the counter pressure surface 14. In addition, the dimensionally stable male part 34 has a wall thickness D which corresponds exactly to the wall thickness D of the synthetic resin layer 28 of the transfer male part 24.
Die formstabile Patrize 30 wird in das Passerfenster 32 der Transferpatrize 24 paßgenau eingesetzt und im Passerfenster 32 durch eine Klebung fixiert. Die solchermaßen vorbereitete bzw. assemblierte Prägestation 10 steht dann zum Strukturieren und Prägen zur Verfügung, wie aus Figur 4 ersichtlich ist. Seitlich neben der zweckmäßigerweise beheizbaren Prägewalze 12 der Prägestation 10 ist eine Lenkrolle 54 und seitlich neben der Gegendruckwalze 14 ist eine zweite Lenkrolle 56 vorgesehen. Um die Lenkrolle 56 wird bspw. eine Bahn aus Papier 58 und um die Lenkrolle 54 wird eine Prägefolienbahn 60 der Prägestation 10 zugeführt. Die Prägewalze 12 und die Gegendruckwalze 14 der Prägestation 10 werden rotativ angetrieben. Hierbei werden die Bahn aus Papier 58 und die Prägefolienbahn 60 simultan durch die Prägestation 10 hindurch bewegt. Hierbei wird die Papierbahn 58 durch den Stempel 18 und die Patrize 34 strukturiert und gleichzeitig die der Papierbahn 58 zugewandte Dekorlage 62 der Prägefolie 60 auf die Papierbahn 58 geprägt. Die mit der Dekorlage 62 beprägte strukturierte Papierbahn 58 ist in Figur 4 stromabwärts nach der Prägewalze 12 mit der Bezugsziffer 64 bezeichnet. Der von der Prägefolie 60 stromabwärts nach der Prägestation abgelöste Träger der Prägefolie 60 ist mit der Bezugsziffer 66 bezeichnet. Gleiche Einzelheiten sind in den Figuren 1 bis 4 jeweils mit denselben Bezugsziffern bezeichnet, so daß es sich erübrigt, in Verbindung mit den Figuren alle Einzelheiten jeweils detailliert zu beschreiben. The dimensionally stable male 30 is inserted into the register window 32 of the transfer male 24 with a precise fit and fixed in the register window 32 by means of an adhesive. The embossing station 10 prepared or assembled in this way is then available for structuring and embossing, as can be seen from FIG. A swivel castor 54 is provided on the side next to the expediently heatable embossing roller 12 of the embossing station 10 and a second swivel castor 56 is provided on the side next to the counter-pressure roller 14. For example, a web of paper 58 is fed around the steering roller 56 and an embossing film web 60 is fed to the embossing station 10 around the steering roller 54. The embossing roller 12 and the counter-pressure roller 14 of the embossing station 10 are driven in rotation. Here, the web of paper 58 and the embossing film web 60 are moved simultaneously through the embossing station 10. Here, the paper web 58 is structured by the stamp 18 and the male part 34 and at the same time the decorative layer 62 of the embossing film 60 facing the paper web 58 is embossed onto the paper web 58. The structured paper web 58 embossed with the decorative layer 62 is designated in FIG. 4 downstream after the embossing roller 12 with the reference number 64. The carrier of the stamping film 60 detached from the stamping film 60 downstream after the stamping station is identified by the reference number 66. The same details are given the same reference numerals in FIGS. 1 to 4, so that it is unnecessary to describe all details in detail in connection with the figures.

Claims

AnsprücheExpectations
1. Verfahren zum präzisen Positionieren einer Patrize (34) an einer mit einer1. Method for precise positioning of a male (34) on one with
Prägewalze (12) zusammenwirkenden Gegendruckwalze (14) einer Prägestation (10), wobei die Prägewalze (12) an ihrer Zylindermantelfläche (16) einen Stempel (18) mit einer Stempel-Reliefstrukturierung aufweist, und die mit einer der Stempel-Reliefstrukturierung (20) negativ entsprechenden Patrizen-Reliefstrukturierung (48) ausgebildete Patrize (34) an der Zylindermantelfläche (16) der Gegendruckwalze (14) zum Stempel (18) an der Zylindermantelfläche (16) der Prägewalze (12) paßgenau positioniert wird, dadurch gekennzeichnet, daß am Stempel (18) der Prägewalze (12) eine dünne flexible, biegsame Transferpatrize (24) genau positioniert temporär befestigt wird, die ein Passerfenster (32) aufweist, daß die Transferpatrize (24) von der Prägewalze (12) zur Gegendruckwalze (14) transferiert und an der Gegendruckwalze (149 fixiert wird, wobei die Prägewalze (12) und dieEmbossing roller (12) interacting counter-pressure roller (14) of an embossing station (10), the embossing roller (12) having a stamp (18) with a stamp relief structure on its cylindrical surface (16), and with one of the stamp relief structures (20) negatively corresponding male relief structuring (48) male (34) on the cylindrical surface (16) of the counter-pressure roller (14) to the stamp (18) on the cylindrical surface (16) of the embossing roller (12) is positioned with a precise fit, characterized in that on the stamp (18) the embossing roller (12) a thin, flexible, flexible transfer patrix (24) is temporarily positioned precisely and has a registration window (32) that transfers the transfer patrix (24) from the embossing roller (12) to the counter-pressure roller (14) and is fixed to the counter-pressure roller (149, the embossing roller (12) and the
Gegendruckwalze (14) miteinander entsprechenden Umfangsgeschwindigkeiten zueinander entgegengesetzt rotativ angetrieben werden, und daß im Passerfenster (32) der an der Gegendruckwalze (14) fixierten Transferpatrize (24) anschließend die Patrize (34) paßgenau befestigt wird, wobei die mit der Patrizen-Counter-pressure roller (14) corresponding peripheral speeds are rotated in opposite directions to one another, and that in the registration window (32) of the transfer male (24) fixed to the counter-pressure roller (14) the male (34) is then attached with an exact fit, the male (34)
Reliefstrukturierung (48) ausgebildete Patrize (34) aus einem dünnen formstabilen Material besteht, das eine der Krümmung (R) der Zylindermantelfläche (40) der Gegendruckwalze (14) entsprechende Zylinderkrümmung (R) aufweist.Relief structuring (48) formed patrix (34) consists of a thin, dimensionally stable material, which has a curvature (R) corresponding to the curvature (R) of the cylindrical surface (40) of the counter-pressure roller (14).
Verfahren nach Anspruch 1, dadurch gekennzeichnet, daß eine Transferpatrize (24) verwendet wird, die auf einem GrundgewebeA method according to claim 1, characterized in that a transfer patrix (24) is used, which is on a base fabric
(26) eine Kunstharzschicht (28) aufweist, wobei die Kunstharzschicht (28) auf dem Grundgewebe (26) einen Rahmen (30) bildet, durch den das Passerfenster (32) für die Patrize (34) definiert begrenzt ist.(26) has a synthetic resin layer (28), the synthetic resin layer (28) on the base fabric (26) forming a frame (30) through which the register window (32) for the male part (34) is defined in a defined manner.
3. Verfahren nach Anspruch 2, dadurch gekennzeichnet, daß eine Transferpatrize (24) verwendet wird, wobei die Kunstharzschicht3. The method according to claim 2, characterized in that a transfer male (24) is used, wherein the synthetic resin layer
(28) eine Dicke (D) besitzt, die der Dicke (D) der Patrize (34) entspricht.(28) has a thickness (D) which corresponds to the thickness (D) of the male (34).
4. Verfahren nach Anspruch 2 oder 3, dadurch gekennzeichnet, daß eine Transferpatrize (24) verwendet wird, wobei das Grundgewebe (26) ein Glas- oder Kohlefasergewebe und die Kunstharzschicht (28) eine Epoxidharzschicht ist.4. The method according to claim 2 or 3, characterized in that a transfer male (24) is used, wherein the base fabric (26) is a glass or carbon fiber fabric and the synthetic resin layer (28) is an epoxy resin layer.
Verfahren nach einem der Ansprüche 2 bis 4, dadurch gekennzeichnet, daß die Transferpatrize (24) mit ihrem Grundgewebe (26) an derMethod according to one of claims 2 to 4, characterized in that the transfer patrix (24) with its base tissue (26) on the
Zylindermantelfläche (40) der Gegendruckwalze (14) festgeklebt wird.Cylinder surface (40) of the counter-pressure roller (14) is glued.
Verfahren nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, daß die Patrize (34) im Passerfenster (32) der Transferpatrize (24) festgeklebt wird. Method according to one of claims 1 to 5, characterized in that the male part (34) is glued in the register window (32) of the transfer male part (24).
EP01969218A 2000-08-19 2001-08-04 Method for positioning a male mould on a counter-pressure cylinder of an embossing station Expired - Lifetime EP1309445B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE10040683 2000-08-19
DE10040683A DE10040683C2 (en) 2000-08-19 2000-08-19 Method for positioning a male on a counter-pressure roller of an embossing station
PCT/DE2001/003010 WO2002016121A1 (en) 2000-08-19 2001-08-04 Method for positioning a male mould on a counter-pressure cylinder of an embossing station

Publications (2)

Publication Number Publication Date
EP1309445A1 true EP1309445A1 (en) 2003-05-14
EP1309445B1 EP1309445B1 (en) 2004-08-18

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EP01969218A Expired - Lifetime EP1309445B1 (en) 2000-08-19 2001-08-04 Method for positioning a male mould on a counter-pressure cylinder of an embossing station

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EP (1) EP1309445B1 (en)
CN (1) CN1172790C (en)
AT (1) ATE273788T1 (en)
AU (1) AU2001289555A1 (en)
DE (1) DE10040683C2 (en)
ES (1) ES2225602T3 (en)
PL (1) PL360083A1 (en)
WO (1) WO2002016121A1 (en)

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ES2225602T3 (en) 2005-03-16
US6748866B2 (en) 2004-06-15
CN1461257A (en) 2003-12-10
AU2001289555A1 (en) 2002-03-04
DE10040683C2 (en) 2002-06-27
DE10040683A1 (en) 2002-03-07
WO2002016121A1 (en) 2002-02-28
CN1172790C (en) 2004-10-27
EP1309445B1 (en) 2004-08-18
ATE273788T1 (en) 2004-09-15
US20040035311A1 (en) 2004-02-26
PL360083A1 (en) 2004-09-06

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