EP2058115B1 - Rotation stamping device - Google Patents

Rotation stamping device Download PDF

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Publication number
EP2058115B1
EP2058115B1 EP08105684.8A EP08105684A EP2058115B1 EP 2058115 B1 EP2058115 B1 EP 2058115B1 EP 08105684 A EP08105684 A EP 08105684A EP 2058115 B1 EP2058115 B1 EP 2058115B1
Authority
EP
European Patent Office
Prior art keywords
embossing
transport
rotary
printing material
speed
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.)
Not-in-force
Application number
EP08105684.8A
Other languages
German (de)
French (fr)
Other versions
EP2058115A3 (en
EP2058115A2 (en
Inventor
Dr. Christian Compera
Wolfgang Diehr
Steffen Galle
Erich Klaßen
Jana Schiek
Carsten Terhorst
Leo Zeimetz
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.)
Masterwork Machinery Co Ltd
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
Application filed by Heidelberger Druckmaschinen AG filed Critical Heidelberger Druckmaschinen AG
Publication of EP2058115A2 publication Critical patent/EP2058115A2/en
Publication of EP2058115A3 publication Critical patent/EP2058115A3/en
Application granted granted Critical
Publication of EP2058115B1 publication Critical patent/EP2058115B1/en
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • 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
    • B41F19/02—Apparatus or machines for carrying out printing operations combined with other operations with embossing
    • 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
    • B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B50/00—Making rigid or semi-rigid containers, e.g. boxes or cartons
    • B31B50/006—Controlling; Regulating; Measuring; Improving safety
    • 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
    • B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B50/00—Making rigid or semi-rigid containers, e.g. boxes or cartons
    • B31B50/02—Feeding or positioning sheets, blanks or webs
    • B31B50/04—Feeding sheets or blanks
    • B31B50/042—Feeding sheets or blanks using rolls, belts or chains
    • 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
    • B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B50/00—Making rigid or semi-rigid containers, e.g. boxes or cartons
    • B31B50/02—Feeding or positioning sheets, blanks or webs
    • B31B50/04—Feeding sheets or blanks
    • B31B50/06—Feeding sheets or blanks from stacks
    • B31B50/062—Feeding sheets or blanks from stacks from the underside of a magazine
    • 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
    • B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B50/00—Making rigid or semi-rigid containers, e.g. boxes or cartons
    • B31B50/74—Auxiliary operations
    • B31B50/88—Printing; Embossing
    • 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
    • B31F2201/0779—Control

Definitions

  • the invention understood a rotary embossing device according to the preamble of claim 1, a method of operating a rotary embossing device according to claim 10 and a folding box gluing machine according to claim 11.
  • Folding cartons are cardboard or corrugated board packaging, and to a lesser extent plastic, which are glued at one or more points during the folding process, depending on the design. They are usually produced from a blank. The blanks are usually punched out on a sheet punch. The blank must be glued at least at one edge. The folded boxes come out of the carton gluer in the flat state. Such is for example in the US 7678035 B2 disclosed. The placement and filling of the box can be done by machine or manually.
  • the embossing of braille is carried out either during the punching process in the sheet punch in the production of blanks.
  • this is expensive because a punching sheet several benefits, ie blanks contains and for each benefit a pair of tools consisting of die and male must be provided.
  • rotary embossing devices with two rotating embossing tools are used, which may for example be part of a Faltschachtelklebemaschine.
  • such rotary embossing devices have a common drive for both rotary tools.
  • the rotation tools relative to Faltschachtelzuites be synchronized.
  • the EP 1 447 211 A2 shows a device for impressing transverse grooves in cardboard.
  • the EP 1 537 920 A1 shows an apparatus for cutting, creasing and embossing sheet material, such as cardboard, with two rollers. Both devices have in common that the synchronization can not be performed with the braille required accuracy and that no adaptation of the devices to the size of the product and the distance of the products is possible.
  • the EP 1 398 141 B1 shows a folding box gluing machine with a folding station and a closing station.
  • there is an intermediate station between the two stations which serves to change the transport speed of folding box hoses and to reduce the distance between successive folding box hoses. A positioning of the Faltschachtelschläuche relative to the tools of the closing station does not take place.
  • the DE 20 2005 017 869 U1 shows a single-feed feeder and a transport system, where the feeder has a servo drive with register control.
  • the transport system has a cammed toothed belt. From the feeder, respective folding boxes can be inserted between the cams, for which purpose the feeder is synchronized with the transport system.
  • the object of the present invention is to provide a rotary embossing device which overcomes the disadvantages of the prior art and enables high output while maintaining high embossing quality.
  • the rotary embossing device has two rotating embossing tools, driven by at least one embossing tool drive, for introducing embossings, in particular braille, into printing substrates, in particular folding carton blanks.
  • the embossing tools are formed by a stamped male and a die.
  • the template serves as a counter-mold and is advantageously product-neutral and has a uniform hole pattern.
  • the embossing tools of the rotary embossing device are preceded by a transport device for transporting the printing materials.
  • the transport device advantageously has a drive which is independent of the at least one embossing tool drive and which can be designed, for example, as a controllable electric motor.
  • a respective printing material undergoes a change in its transport speed, whereby the printing material is synchronized with respect to its embossing position relative to the punches of the male, i. the seen in the direction of transport front edge of an embossed surface to be provided with the printing material is synchronized relative to the one or the first stamping process becoming effective stamping the male, so tuned in their position.
  • the trailing edge of the surface to be imprinted may also be positioned relative to the stamp (s) most recently effective in the stamping process. This synchronization makes it possible in an advantageous manner that the embossing tools can be operated at a constant speed.
  • the synchronization of substrates and embossing tools is no longer done as usual by adjusting the rotational speeds of the embossing tools, but as possible exclusively by adjusting the transport speed in the transport device. Consequently, since the rotary tools no longer have to be constantly accelerated and decelerated, the rotary tools can be operated at a higher speed. As a result, the output of the rotary embossing device is increased significantly in an advantageous manner.
  • the transport device is preceded by a transport system, which is designed for example as a circulating conveyor belt and which one of the embossing tool drive and the drive of the transport device dependent drive, such as an electric motor has.
  • the rotary embossing means has a means for determining the rotational speed of the male.
  • This may be, for example, a rotary encoder or a sensor.
  • the upstream transport system has at least one sensor for determining the position of a transported printing material and also a means for determining the transport speed of the transported printing material.
  • the means may also be a rotary encoder or a sensor.
  • the electric motor for driving the transport device, the means and the sensor are connected via data lines to a control device.
  • the transport device has a lower and an upper conveyor belt, between which the printing material can be clamped. As a result, the printing material can be safely and reliably guided and transported.
  • the stamping tools, the transport device and the upstream transport system are each operated at approximately constant speeds. This makes it possible with little control effort to operate the rotary embossing device at high speed, thereby obtaining a high output of the rotary embossing device.
  • the embossing tools and the upstream transport system are operated at approximately constant speeds.
  • the transport speed of the transport device follows a speed profile specified by the control unit.
  • a respective printing material can be taken over, for example, with the transport speed of the upstream transport system, subsequently accelerated for synchronization or decelerated and adapted to the speed of the die and male prior to transfer to the rotary embossing tools.
  • the substrate is gently transported, kept low forces on the sheet in the transport direction and marks avoided by the belts of the transport device.
  • the invention further relates to a method for operating a rotary embossing device.
  • the data acquired by the means for determining the rotational speed of the die and the position of the punches of the die, the sensor for determining the position of a transported printing material in the area of the upstream transport system and the means for determining the transport speed of the printing material in the transport system are taken over by the control device , Further, the embossing position of a printing material is entered into the control device. This may be, for example, the distance of the leading edge of an area to be imprinted from the front edge of the printing material, which the machine operator inputs via a generally known interface.
  • the control device calculates the necessary transport speed of the transport device for synchronizing the printing material with respect to its embossing position relative to the punches of the male part.
  • the electric motor of the transport device is controlled by the control device accordingly.
  • Fig. 1 shows a Faltschachtelklebemaschine 1 with a Rotationsgarge acquired invention 10 Faltschachtelzuitese 2 are transported by a feeder in the transport direction T by the Faltschachtelklebemaschine 1 from an upstream transport system 3, a transport device 13 through the rotary embossing device 10 to a boom.
  • the rotary embossing device 10 has a male part 11 and a die 12 for introducing embossments into the folding box blanks 2.
  • the folding box blanks 2 are conveyed with a board pitch A, also referred to as a section length, at the speed vF through the upstream transport system 3 and then to a transport device 13 passed, which accelerates or decelerates a respective folding carton blank 2 to the speed vT.
  • This speed change causes a synchronization of the carton blank 2 with the embossing tools 11, 12 (see also Fig. 2b-d ), ie, the front edge 211, seen in the transporting direction T, of a surface to be provided with an embossment 22 at the position 21 of the printing substrate 2 is synchronized relative to the stamping process 111 of the male part 11 that first becomes effective during the embossing process. Subsequently, this process is referred to as synchronization of the printing material 2 with respect to its embossing position 21 relative to the punches 110 of the male part 11. In the contact line of male part 11 and folding carton blank 2 during the embossing process, the male part 11 has the speed vP.
  • the die 12 has the speed vM.
  • the speeds of die vM, male vP and Faltschachtelzuites have the same amount, so that there is no relative movements between tools 11, 12 and Faltschachtelzuites 2 and thus markings of Faltschachtelzuitess be avoided.
  • you need to patrote 11 and die 12 are relatively synchronized with respect to their speed.
  • male and female mold 11 12 must be synchronized relative to each other with respect to their angular position, ie it must be ensured that the punch 110 of the male part 11 can dive into holes of the die 12.
  • Do Patrize 11 and die 12 each have their own embossing tool drive so the synchronization is preferably electronically. If the male part 11 and the female part 12 are driven by a common embossing tool drive, the synchronization takes place mechanically, for example by coupling the male part 11 and the female part 12.
  • Fig. 2a shows the rotary embossing device 10.
  • a folding carton blank 2 is transported by an upstream transport system 3 in the transport direction T.
  • the position of the folding carton blank 2 is determined by a sensor 17, for example by the detection of the front edge of the folding carton blank 2.
  • the transport speed of the folding box in the upstream transport system is determined by a rotary encoder of the transport system 16.
  • the acquired information is forwarded via data lines to a control device 18.
  • the folding box blank 2 is transferred to a transport device 13.
  • the transport device 13 has an upper conveyor belt 131 and a lower conveyor belt 132.
  • a folding box blank 2 is transported further at the speed vT.
  • the conveyor belts 131, 132 are driven by at least one electric motor 14. This is controlled by the control device 18.
  • a respective folding box blank 2 is transferred to the rotary tools 11, 12 and experiences by the interaction of the male part 11 and die 12 an embossing.
  • the male part 11 is equipped with a rotary encoder 15 which is used to detect the rotational speed of the male part 11 and to detect the position of the punches 110 (in FIG Fig. 2a not shown) of the male part 11 is used.
  • the acquired information is forwarded to the control device 18 via a data line.
  • the control device 18 is connected to an interface via which the machine operator can enter the embossing position 21 on a folding carton blank 2. Based on the provided Information calculates the controller 18, the target speed of the carton in the transport device so that a synchronization of the carton blank 2 relative to the embossing dies 11, 12 takes place by the transport device 13.
  • a feeder for applying Faltschachtelzulaseen 2 may be located at the position of the upstream transport system 3, alternatively, a feeder for applying Faltschachtelzulaseen 2. Integrated into the feeder are then also a sensor 17 and a means for determining the transfer speed of Faltschachtelzuitese 2 from the feeder to the transport device 13, analogous to the encoder of the transport system 16. The synchronization of embossing position 21 of Faltschachtelzuitess 2 relative to the punches 110 of the male 11th takes place as described above. To the rotary embossing device 10 can either further processing stations with a subsequent boom or directly connect a boom.
  • the transport device 13 has a sensor which detects the position of a folding carton blank 2 transported by the conveyor belts 131 and 132, for example by detecting the front edge of the folding carton blank 2.
  • the speed of the folding carton blank 2 corresponds to the time of detection the speed of the conveyor belts 131, 132 and is determined by the control of the electric motor 14 and thus known.
  • the position of the punches 110 of the male part 11 and the rotational speed of the male part 11 are determined by a rotary encoder 15 as described above.
  • This information is in each case transmitted to the control device 18, which calculates therefrom the acceleration of the conveyor belts 131 and 132 and thus of the folding box blank 2 necessary for the synchronization of embossing position 21 of the folding box blank 2 relative to the punches 110 of the male part 11.
  • Fig. 2b shows a detail of the male part 11, namely the punch 110 of the male.
  • the front edge 113 seen in the direction of rotation is formed by the one or more stamps 111 which become effective during the stamping process, and the rear edge 114 is formed by the last impression stamping die 112 or stamping process.
  • the die 12 (not shown here) represents the negative mold of the male part 11 and has recesses which receive the punches 110, 111, 112 of the male.
  • Fig. 2c a folding carton blank 2 is shown, which is moved in the transport direction T and wherein the embossed position 21 is indicated a to be provided with an embossment 22 surface.
  • the area to be provided with an embossment 22 is delimited by the front edge 211 and the rear edge 212.
  • the leading edge of the punches 113 is imaged onto the leading edge of the imprint 211 and the trailing edge of the punches 114 is imaged onto the trailing edge of the imprint 212.
  • a synchronization takes place, ie a positioning of the carton blank 2 with its embossing position 21 relative to the punches 110 of the male part 11.
  • the result of the embossing process is in Fig. 2d
  • the folding carton blank 2 was embossed 22 at the original embossing position 21.

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Description

Die Erfindung begriff eine Rotationsprägeeinrichtung gemäß dem Oberbegriff von Anspruch 1, ein Verfahren zum Betreiben einer Rotationsprägeeinrichtung nach Anspruch 10 und eine Faltschachtelklebemaschine nach Anspruch 11.The invention understood a rotary embossing device according to the preamble of claim 1, a method of operating a rotary embossing device according to claim 10 and a folding box gluing machine according to claim 11.

Faltschachteln sind Verpackungen aus Karton oder Wellpappe, in geringem Umfang auch aus Kunststoff, die je nach Konstruktion während des Faltprozesses an einer oder mehreren Stellen beleimt werden. Sie werden in der Regel aus einem Zuschnitt produziert. Die Zuschnitte werden üblicherweise auf einer Bogenstanze ausgestanzt. Der Zuschnitt muss mindestens an einer Kante verklebt werden. Die gefalteten Schachteln kommen im flachliegenden Zustand aus der Faltschachtel-Klebemaschine. Eine solche ist beispielsweise in der US 7678035 B2 offenbart. Das Aufstellen und Befüllen der Schachtel kann maschinell oder auch manuell erfolgen.Folding cartons are cardboard or corrugated board packaging, and to a lesser extent plastic, which are glued at one or more points during the folding process, depending on the design. They are usually produced from a blank. The blanks are usually punched out on a sheet punch. The blank must be glued at least at one edge. The folded boxes come out of the carton gluer in the flat state. Such is for example in the US 7678035 B2 disclosed. The placement and filling of the box can be done by machine or manually.

Neben den Faltungen, die zur Herstellung der Faltschachteln erforderlich sind, werden als Vorbereitung für den anschließenden Produktionsschritt auch weitere Rilllinien in der Faltschachtel-Klebemaschine vorgebrochen (vorgefaltet). Dadurch werden das Aufstellen der Schachtel und das spätere Befüllen erleichtert.In addition to the folds required to produce the cartons, further creasing lines in the carton gluer are pre-folded (prefolded) to prepare for the subsequent production step. This facilitates the installation of the box and the subsequent filling.

Dienen die Faltschachteln zur Verpackung von Arzneimitteln, so ist es gesetzlich vorgeschrieben, die Bezeichnung des Arzneimittels in Blindenschrift (so genannte Braille-Schrift) auf die Faltschachtel aufzubringen (bspw. durch Prägen).If the cartons are used to package medicines, it is legally required to apply the name of the medicament in braille (so-called Braille) to the carton (eg by embossing).

Nach dem Stand der Technik erfolgt die Prägung der Blindenschrift entweder während des Stanzprozesses in der Bogenstanze bei der Herstellung der Zuschnitte. Dies ist jedoch aufwendig, da ein Stanzbogen etliche Nutzen, d. h. Zuschnitte enthält und für jeden Nutzen ein Werkzeugpaar bestehend aus Matrize und Patrize bereitgestellt werden muss. Oder es kommen Rotationsprägeeinrichtungen mit zwei rotierenden Prägewerkzeugen zum Einsatz, welche beispielsweise Teil einer Faltschachtelklebemaschine sein können. Bekannter weise verfügen derartige Rotationsprägeeinrichtungen über einen gemeinsamen Antrieb für beide Rotationswerkzeuge. Um die Prägung an der richtigen Position auf den Faltschachtelzuschnitt aufbringen zu können, müssen die Rotationswerkzeuge relativ zum Faltschachtelzuschnitt synchronisiert werden. Insbesondere beim Einbringen einer Blindenschrift in den Faltschachtelzuschnitt muss die Synchronisierung sehr genau erfolgen. Aufgrund des Massenträgheitsmoments von Matrize, Patrize und Rotationsantrieb ist die erforderliche Genauigkeit der Synchronisierung nur schwer bis gar nicht zu erreichen. Weiter nachteilig ist, dass Rotationsprägeeinrichtungen zur besseren Synchronisierung häufig im Start- / Stopp-Betrieb gefahren werden. D. h. die Rotationsprägewerkzeuge werden zur Synchronisierung angehalten und nachfolgend wieder neu beschleunigt. Dadurch wird die Produktionsleistung der Rotationsprägeeinrichtung stark eingeschränkt. Weiter wird dir Produktionsleistung dadurch eingeschränkt, dass keine Anpassung der Rotationsprägeeinrichtung an die Größe des zu bearbeitenden Produktes möglich ist.According to the prior art, the embossing of braille is carried out either during the punching process in the sheet punch in the production of blanks. However, this is expensive because a punching sheet several benefits, ie blanks contains and for each benefit a pair of tools consisting of die and male must be provided. Or there are rotary embossing devices with two rotating embossing tools are used, which may for example be part of a Faltschachtelklebemaschine. As known, such rotary embossing devices have a common drive for both rotary tools. In order to apply the embossing in the correct position on the Faltschachtelzuschnitt, the rotation tools relative to Faltschachtelzuschnitt be synchronized. In particular, when introducing a braille in the carton blank synchronization must be done very accurately. Due to the moment of inertia of die, male and rotary drive the required accuracy of synchronization is difficult or impossible to achieve. Another disadvantage is that rotary embossing devices for better synchronization are often driven in start / stop operation. Ie. the rotary embossing tools are stopped for synchronization and subsequently accelerated again. As a result, the production capacity of the rotary embossing device is severely limited. Next you production is limited by the fact that no adjustment of the rotary embossing device to the size of the product to be processed is possible.

Die EP 1 447 211 A2 zeigt eine Vorrichtung zum Einprägen von Querrillen in Pappe. Die EP 1 537 920 A1 zeigt eine Vorrichtung zum Schneiden, Rillen und Prägen von Bogenmaterial, wie Karton, mit zwei Walzen. Beiden Vorrichtungen ist gemein, dass die Synchronisierung nicht mit der für Blindenschrift notwendigen Genauigkeit durchgeführt werden kann und dass keine Anpassung der Vorrichtungen an die Größe des Produktes und den Abstand der Produkte möglich ist.The EP 1 447 211 A2 shows a device for impressing transverse grooves in cardboard. The EP 1 537 920 A1 shows an apparatus for cutting, creasing and embossing sheet material, such as cardboard, with two rollers. Both devices have in common that the synchronization can not be performed with the braille required accuracy and that no adaptation of the devices to the size of the product and the distance of the products is possible.

Die EP 1 398 141 B1 zeigt eine Faltschachtelklebemaschine mit einer Faltstation und einer Schließstation. Zwischen beiden Stationen befindet sich zusätzlich eine Zwischenstation, welche dazu dient, die Transportgeschwindigkeit von Faltschachtelschläuchen zu verändern und den Abstand von aufeinander folgenden Faltschachtelschläuchen zu verringern. Eine Positionierung der Faltschachtelschläuche relativ zu den Werkzeugen der Schließstation erfolgt dabei nicht.The EP 1 398 141 B1 shows a folding box gluing machine with a folding station and a closing station. In addition, there is an intermediate station between the two stations, which serves to change the transport speed of folding box hoses and to reduce the distance between successive folding box hoses. A positioning of the Faltschachtelschläuche relative to the tools of the closing station does not take place.

Die DE 20 2005 017 869 U1 zeigt einen Einzelnutzenanleger und ein Transportsystem, wobei der Anleger über einen Servoantrieb mit Registerregelung verfügt. Das Transportsystem besitzt einen mit Nocken versehenen Zahnriemen. Von dem Anleger können jeweilige Faltschachteln zwischen die Nocken eingelegt werden, wozu der Anleger mit dem Transportsystem synchronisiert wird.The DE 20 2005 017 869 U1 shows a single-feed feeder and a transport system, where the feeder has a servo drive with register control. The transport system has a cammed toothed belt. From the feeder, respective folding boxes can be inserted between the cams, for which purpose the feeder is synchronized with the transport system.

Aufgabe der vorliegenden Erfindung ist es, eine Rotationsprägeeinrichtung zu schaffen, welche die Nachteile des Standes der Technik überwindet und bei gleichzeitig hoher Prägequalität eine hohe Ausbringung ermöglicht.The object of the present invention is to provide a rotary embossing device which overcomes the disadvantages of the prior art and enables high output while maintaining high embossing quality.

Gelöst wird diese Aufgabe durch eine Rotationsprägeeinrichtung mit den kennzeichnenden Merkmalen von Anspruch 1.This object is achieved by a rotary embossing device with the characterizing features of claim 1.

Die erfindungsgemäße Rotationsprägeeinrichtung besitzt zwei rotierende Prägewerkzeuge, angetrieben durch mindestens einen Prägewerkzeugantrieb, zum Einbringen von Prägungen, insbesondere Blindenschrift, in Bedruckstoffe, insbesondere Faltschachtelzuschnitte. Die Prägewerkzeuge werden durch eine mit Stempeln versehene Patrize und eine Matrize gebildet. Die Matrize dient als Gegenform und ist vorteilhafter weise produktneutral und besitzt ein gleichmäßiges Lochmuster. In stromaufwärtiger Richtung ist den Prägewerkzeugen der Rotationsprägeeinrichtung eine Transporteinrichtung zum Transport der Bedruckstoffe vorgelagert. Die Transporteinrichtung besitzt in vorteilhafter Weise einen von dem mindestens einen Prägewerkzeugantrieb unabhängigen Antrieb, welcher beispielsweise als steuerbarer Elektromotor ausgeführt sein kann. Durch die Transporteinrichtung erfährt ein jeweiliger Bedruckstoff eine Änderung seiner Transportgeschwindigkeit, wodurch der Bedruckstoff bezüglich seiner Prägeposition relativ zu den Stempeln der Patrize synchronisiert wird, d.h. die in Transportrichtung gesehen vordere Kante einer mit einer Prägung zu versehenden Fläche des Bedruckstoffes wird relativ zu dem oder den beim Prägevorgang zuerst wirksam werdenden Stempeln der Patrize synchronisiert, also in ihrer Position abgestimmt. Alternativ kann auch die hintere Kante der mit einer Prägung zu versehenden Fläche relativ zu dem oder den beim Prägevorgang zuletzt wirksam werdenden Stempeln positioniert werden. Diese Synchronisierung ermöglicht es in vorteilhafter Weise, dass die Prägewerkzeuge mit einer konstanten Geschwindigkeit betrieben werden können. Die Synchronisation von Bedruckstoffen und Prägewerkzeugen erfolgt nicht mehr wie bisher üblich durch eine Anpassung der Rotationsgeschwindigkeiten der Prägewerkzeuge, sondern möglichst ausschließlich durch eine Anpassung der Transportgeschwindigkeit in der Transporteinrichtung. Da die Rotationswerkzeuge folglich nicht mehr ständig beschleunigt und abgebremst werden müssen, können die Rotationswerkzeuge mit einer höheren Geschwindigkeit betrieben werden. Dadurch wird in vorteilhafter Weise die Ausbringung der Rotationsprägeeinrichtung wesentlich erhöht.The rotary embossing device according to the invention has two rotating embossing tools, driven by at least one embossing tool drive, for introducing embossings, in particular braille, into printing substrates, in particular folding carton blanks. The embossing tools are formed by a stamped male and a die. The template serves as a counter-mold and is advantageously product-neutral and has a uniform hole pattern. In the upstream direction, the embossing tools of the rotary embossing device are preceded by a transport device for transporting the printing materials. The transport device advantageously has a drive which is independent of the at least one embossing tool drive and which can be designed, for example, as a controllable electric motor. By the transport means a respective printing material undergoes a change in its transport speed, whereby the printing material is synchronized with respect to its embossing position relative to the punches of the male, i. the seen in the direction of transport front edge of an embossed surface to be provided with the printing material is synchronized relative to the one or the first stamping process becoming effective stamping the male, so tuned in their position. Alternatively, the trailing edge of the surface to be imprinted may also be positioned relative to the stamp (s) most recently effective in the stamping process. This synchronization makes it possible in an advantageous manner that the embossing tools can be operated at a constant speed. The synchronization of substrates and embossing tools is no longer done as usual by adjusting the rotational speeds of the embossing tools, but as possible exclusively by adjusting the transport speed in the transport device. Consequently, since the rotary tools no longer have to be constantly accelerated and decelerated, the rotary tools can be operated at a higher speed. As a result, the output of the rotary embossing device is increased significantly in an advantageous manner.

In einer besonders vorteilhaften Ausführungsform der erfindungsgemäßen Rotationsprägeeinrichtung ist der Transporteinrichtung ein Transportsystem vorgelagert, welches beispielsweise als umlaufendes Förderband ausgeführt ist und welches einen von dem Prägewerkzeugantrieb und dem Antrieb der Transporteinrichtung abhängigen Antrieb, beispielsweise einen Elektromotor, besitzt.In a particularly advantageous embodiment of the rotary embossing device according to the invention the transport device is preceded by a transport system, which is designed for example as a circulating conveyor belt and which one of the embossing tool drive and the drive of the transport device dependent drive, such as an electric motor has.

In einer besonders vorteilhaften Ausführungsform der Erfindung besitzt die Rotationsprägeeinrichtung ein Mittel zur Bestimmung der Rotationsgeschwindigkeit der Patrize. Dabei kann es sich beispielsweise um einen Drehgeber oder einen Sensor handeln. Durch dieses Mittel kann weiter die Position der Stempel der Patrize bestimmt werden. Das vorgelagerte Transportsystem besitzt mindestens einen Sensor zur Bestimmung der Position eines transportierten Bedruckstoffes und auch ein Mittel zur Bestimmung der Transportgeschwindigkeit des transportierten Bedruckstoffes. Bei dem Mittel kann es sich ebenfalls um einen Drehgeber oder einen Sensor handeln. Der Elektromotor zum Antrieb der Transporteinrichtung, die Mittel und der Sensor sind über Datenleitungen mit einer Steuereinrichtung verbunden.In a particularly advantageous embodiment of the invention, the rotary embossing means has a means for determining the rotational speed of the male. This may be, for example, a rotary encoder or a sensor. By this means, the position of the punch of the male can be further determined. The upstream transport system has at least one sensor for determining the position of a transported printing material and also a means for determining the transport speed of the transported printing material. The means may also be a rotary encoder or a sensor. The electric motor for driving the transport device, the means and the sensor are connected via data lines to a control device.

In einer vorteilhaften Weiterbildung der Rotationsprägeeinrichtung besitzt die Transporteinrichtung ein unteres und ein oberes Transportband, zwischen welchen der Bedruckstoff klemmbar ist. Dadurch kann der Bedruckstoff sicher und definiert geführt und transportiert werden.In an advantageous development of the rotary embossing device, the transport device has a lower and an upper conveyor belt, between which the printing material can be clamped. As a result, the printing material can be safely and reliably guided and transported.

In einer vorteilhaften Ausführungsform der Rotationsprägeeinrichtung werden die Prägewerkzeuge, die Transporteinrichtung und das vorgelagerte Transportsystem jeweils mit annähernd konstanten Geschwindigkeiten betrieben. Dadurch wird es bei geringem Steuerungsaufwand ermöglicht, die Rotationsprägeeinrichtung bei hoher Geschwindigkeit zu betreiben und dadurch eine hohe Ausbringung der Rotationsprägeeinrichtung zu erlangen.In an advantageous embodiment of the rotary embossing device, the stamping tools, the transport device and the upstream transport system are each operated at approximately constant speeds. This makes it possible with little control effort to operate the rotary embossing device at high speed, thereby obtaining a high output of the rotary embossing device.

In einer besonders vorteilhaften Weiterbildung der Erfindung werden die Prägewerkzeuge und das vorgelagerte Transportsystem mit annähernd konstanten Geschwindigkeiten betrieben. Die Transportgeschwindigkeit der Transporteinrichtung folgt jedoch einem von der Steuereinheit vorgegebenen Geschwindigkeitsprofil. So kann ein jeweiliger Bedruckstoff beispielsweise mit der Transportgeschwindigkeit des vorgelagerten Transportsystems übernommen werden, nachfolgend zur Synchronisation beschleunigt oder abgebremst werden und vor der Übergabe an die Rotationsprägewerkzeuge auf die Geschwindigkeit von Matrize und Patrize angepasst werden. Der Bedruckstoff wird dabei schonend transportiert, Kräfte auf den Bogen in Transportrichtung gering gehalten und Markierungen durch die Bänder der Transporteinrichtung vermieden.In a particularly advantageous embodiment of the invention, the embossing tools and the upstream transport system are operated at approximately constant speeds. However, the transport speed of the transport device follows a speed profile specified by the control unit. Thus, a respective printing material can be taken over, for example, with the transport speed of the upstream transport system, subsequently accelerated for synchronization or decelerated and adapted to the speed of the die and male prior to transfer to the rotary embossing tools. The substrate is gently transported, kept low forces on the sheet in the transport direction and marks avoided by the belts of the transport device.

Die Erfindung betrifft weiter auch ein Verfahren zum Betreiben einer Rotationsprägeeinrichtung. Die von dem Mittel zur Bestimmung der Rotationsgeschwindigkeit der Matrize und der Position der Stempel der Matrize, dem Sensor zur Bestimmung der Position eines transportierten Bedruckstoffs im Bereich des vorgelagerten Transportsystems und dem Mittel zur Bestimmung der Transportgeschwindigkeit des Bedruckstoffs im Transportsystem erfassten Daten werden von der Steuereinrichtung übernommen. Weiter wird die Prägeposition eines Bedruckstoffes in die Steuereinrichtung eingegeben. Dabei kann es sich beispielsweise um den Abstand der Vorderkante einer mit einer Prägung zu versehenden Fläche von der Vorderkante des Bedruckstoffes handeln, welchen der Maschinenbediener über ein allgemein bekanntes Interface eingibt. Basierend auf diesen Daten berechnet die Steuereinrichtung die notwendige Transportgeschwindigkeit der Transporteinrichtung zur Synchronisierung des Bedruckstoffs bezüglich seiner Prägeposition relativ zu den Stempeln der Patrize. Um die notwendige Transportgeschwindigkeit der Transporteinrichtung zu erreichen, wird der Elektromotor der Transporteinrichtung durch die Steuereinrichtung entsprechend angesteuert.The invention further relates to a method for operating a rotary embossing device. The data acquired by the means for determining the rotational speed of the die and the position of the punches of the die, the sensor for determining the position of a transported printing material in the area of the upstream transport system and the means for determining the transport speed of the printing material in the transport system are taken over by the control device , Further, the embossing position of a printing material is entered into the control device. This may be, for example, the distance of the leading edge of an area to be imprinted from the front edge of the printing material, which the machine operator inputs via a generally known interface. Based on these data, the control device calculates the necessary transport speed of the transport device for synchronizing the printing material with respect to its embossing position relative to the punches of the male part. In order to achieve the necessary transport speed of the transport device, the electric motor of the transport device is controlled by the control device accordingly.

Hinsichtlich weiterer vorteilhafter Ausgestaltungen der Erfindung wird auf die Unteransprüche sowie die Beschreibung eines Ausführungsbeispiels unter Bezugnahme auf die beiliegenden Zeichnungen verwiesen.With regard to further advantageous embodiments of the invention, reference is made to the dependent claims and the description of an embodiment with reference to the accompanying drawings.

Die Erfindung soll anhand eines Ausführungsbeispiels noch näher erläutert werden. Es zeigen in schematischer Darstellung:

Fig. 1
den Aufbau einer Faltschachtelklebemaschine mit erfindungsgemäßer Rotationsprägeeinrichtung
Fig. 2a
eine erfindungsgemäße Rotationsprägeeinrichtung
Fig. 2b
eine Detailansicht einer Patrize
Fig. 2c
einen Faltschachtelzuschnitt vor dem Prägen
Fig. 2d
einen Faltschachtelzuschnitt nach dem Prägen.
The invention will be explained in more detail with reference to an embodiment. In a schematic representation:
Fig. 1
the structure of a Faltschachtelklebemaschine with inventive rotation embossing device
Fig. 2a
a rotary embossing device according to the invention
Fig. 2b
a detailed view of a patrix
Fig. 2c
a folding carton blank before embossing
Fig. 2d
a carton blank after embossing.

Fig. 1 zeigt eine Faltschachtelklebemaschine 1 mit einer erfindungsgemäßen Rotationsprägeeinrichtung 10. Faltschachtelzuschnitte 2 werden von einem Anleger in Transportrichtung T durch die Faltschachtelklebemaschine 1 von einem vorgelagerten Transportsystem 3, einer Transporteinrichtung 13 durch die Rotationsprägeeinrichtung 10 zu einem Ausleger transportiert. Die Rotationsprägeeinrichtung 10 besitzt eine Patrize 11 und eine Matrize 12 zum Einbringen von Prägungen in die Faltschachtelzuschnitte 2. Die Faltschachtelzuschnitte 2 werden mit einer Kartonteilung A, auch als Abschnittslänge bezeichnet, mit der Geschwindigkeit vF durch das vorgelagerte Transportsystem 3 transportiert und dann an eine Transporteinrichtung 13 übergeben, welche einen jeweiligen Faltschachtelzuschnitt 2 auf die Geschwindigkeit vT beschleunigt oder abbremst. Diese Geschwindigkeitsänderung bewirkt eine Synchronisation des Faltschachtelzuschnitts 2 mit den Prägewerkzeugen 11, 12 (siehe auch Fig. 2b-d), d.h. die in Transportrichtung T gesehen vordere Kante 211 einer mit einer Prägung 22 zu versehenden Fläche an der Position 21 des Bedruckstoffes 2 wird relativ zu dem oder den beim Prägevorgang zuerst wirksam werdenden Stempeln 111 der Patrize 11 synchronisiert. Nachfolgend wird dieser Vorgang als Synchronisation des Bedruckstoffs 2 bezüglich seiner Prägeposition 21 relativ zu den Stempeln 110 der Patrize 11 bezeichnet.
In der Berührungslinie von Patrize 11 und Faltschachtelzuschnitt 2 während des Prägevorgangs besitzt die Patrize 11 die Geschwindigkeit vP. In der Berührungslinie von Matrize 12 mit Faltschachtelzuschnitt 2 während des Prägevorgangs besitzt die Matrize 12 die Geschwindigkeit vM. Während des Prägevorgangs haben die Geschwindigkeiten von Matrize vM, Patrize vP und Faltschachtelzuschnitt denselben Betrag, so dass es zu keinen Relativbewegungen zwischen Werkzeugen 11, 12 und Faltschachtelzuschnitt 2 kommt und damit Markierungen des Faltschachtelzuschnitts vermieden werden. Dazu müssen Patrize 11 und Matrize 12 relativ zueinander bezüglich ihrer Geschwindigkeit synchronisiert sein. Weiter müssen Patrize 11 und Matrize 12 relativ zueinander bezüglich ihrer Winkelposition synchronisiert sein, d.h. es muss sichergestellt sein, dass die Stempel 110 der Patrize 11 in Löcher der Matrize 12 eintauchen können. Besitzen Patrize 11 und Matrize 12 jeweils einen eigenen Prägewerkzeugantrieb so erfolgt die Synchronisation bevorzugt elektronisch. Werden Patrize 11 und Matrize 12 durch einen gemeinsamen Prägewerkzeugantrieb angetrieben, so erfolgt die Synchronisation mechanisch, beispielsweise durch Kopplung von Patrize 11 und Matrize 12. Fig. 1 shows a Faltschachtelklebemaschine 1 with a Rotationsprägeeinrichtung invention 10 Faltschachtelzuschnitte 2 are transported by a feeder in the transport direction T by the Faltschachtelklebemaschine 1 from an upstream transport system 3, a transport device 13 through the rotary embossing device 10 to a boom. The rotary embossing device 10 has a male part 11 and a die 12 for introducing embossments into the folding box blanks 2. The folding box blanks 2 are conveyed with a board pitch A, also referred to as a section length, at the speed vF through the upstream transport system 3 and then to a transport device 13 passed, which accelerates or decelerates a respective folding carton blank 2 to the speed vT. This speed change causes a synchronization of the carton blank 2 with the embossing tools 11, 12 (see also Fig. 2b-d ), ie, the front edge 211, seen in the transporting direction T, of a surface to be provided with an embossment 22 at the position 21 of the printing substrate 2 is synchronized relative to the stamping process 111 of the male part 11 that first becomes effective during the embossing process. Subsequently, this process is referred to as synchronization of the printing material 2 with respect to its embossing position 21 relative to the punches 110 of the male part 11.
In the contact line of male part 11 and folding carton blank 2 during the embossing process, the male part 11 has the speed vP. In the contact line of die 12 with folding box blank 2 during the embossing process, the die 12 has the speed vM. During the embossing process, the speeds of die vM, male vP and Faltschachtelzuschnitt have the same amount, so that there is no relative movements between tools 11, 12 and Faltschachtelzuschnitt 2 and thus markings of Faltschachtelzuschnitts be avoided. To do this you need to patrote 11 and die 12 are relatively synchronized with respect to their speed. Further, male and female mold 11 12 must be synchronized relative to each other with respect to their angular position, ie it must be ensured that the punch 110 of the male part 11 can dive into holes of the die 12. Do Patrize 11 and die 12 each have their own embossing tool drive so the synchronization is preferably electronically. If the male part 11 and the female part 12 are driven by a common embossing tool drive, the synchronization takes place mechanically, for example by coupling the male part 11 and the female part 12.

Fig. 2a zeigt die Rotationsprägeeinrichtung 10. Ein Faltschachtelzuschnitt 2 wird von einem vorgelagerten Transportsystem 3 in Transportrichtung T transportiert. Bevor der Faltschachtelzuschnitt 2 das vorgelagerte Transportsystem 3 verlässt wird von einem Sensor 17 die Position des Faltschachtelzuschnitts 2 bestimmt, beispielsweise durch die Detektion der Vorderkante des Faltschachtelzuschnitts 2. Beispielsweise wird die Vorderkante des Faltschachtelzuschnitts 2 detektiert. Im selben Moment wird durch einen Drehgeber des Transportsystems 16 die Transportgeschwindigkeit der Faltschachtel im vorgelagerten Transportsystem bestimmt. Die erfassten Informationen werden über Datenleitungen an eine Steuereinrichtung 18 weitergeleitet. Von dem vorgelagerten Transportsystem 3 wird der Faltschachtelzuschnitt 2 an eine Transporteinrichtung 13 übergeben. Die Transporteinrichtung 13 besitzt ein oberes Transportband 131 und ein unteres Transportband 132. Geklemmt zwischen beiden Transportbändern 131, 132 wird ein Faltschachtelzuschnitt 2 mit der Geschwindigkeit vT weiter transportiert. Angetrieben werden die Transportbänder 131, 132 durch mindestens einen Elektromotor 14. Dieser wird durch die Steuereinrichtung 18 angesteuert. Von der Transporteinrichtung 13 wird ein jeweiliger Faltschachtelzuschnitt 2 an die Rotationswerkzeuge 11, 12 übergeben und erfährt durch das Zusammenwirken von Patrize 11 und Matrize 12 eine Prägung. Die Patrize 11 ist mit einem Drehgeber 15 ausgestattet, welcher zur Erfassung der Drehgeschwindigkeit der Patrize 11 und zur Erfassung der Position der Stempel 110 (in Fig. 2a nicht dargestellt) der Patrize 11 dient. Die erfassten Informationen werden über eine Datenleitung an die Steuereinrichtung 18 weitergeleitet. Die Steuereinrichtung 18 ist mit einem Interface verbunden, über welches der Maschinenbediener die Prägeposition 21 auf einem Faltschachtelzuschnitt 2 eingeben kann. Basierend auf den bereitgestellten Informationen berechnet die Steuereinrichtung 18 die Sollgeschwindigkeit der Faltschachtel in der Transporteinrichtung so, dass durch die Transporteinrichtung 13 eine Synchronisation des Faltschachtelzuschnitts 2 relativ zu den Prägewerkzeugen 11, 12 erfolgt. Fig. 2a shows the rotary embossing device 10. A folding carton blank 2 is transported by an upstream transport system 3 in the transport direction T. Before the folding carton blank 2 leaves the upstream transport system 3, the position of the folding carton blank 2 is determined by a sensor 17, for example by the detection of the front edge of the folding carton blank 2. For example, the front edge of the folding carton blank 2 is detected. At the same moment, the transport speed of the folding box in the upstream transport system is determined by a rotary encoder of the transport system 16. The acquired information is forwarded via data lines to a control device 18. From the upstream transport system 3, the folding box blank 2 is transferred to a transport device 13. The transport device 13 has an upper conveyor belt 131 and a lower conveyor belt 132. Clamped between two conveyor belts 131, 132, a folding box blank 2 is transported further at the speed vT. The conveyor belts 131, 132 are driven by at least one electric motor 14. This is controlled by the control device 18. From the transport device 13, a respective folding box blank 2 is transferred to the rotary tools 11, 12 and experiences by the interaction of the male part 11 and die 12 an embossing. The male part 11 is equipped with a rotary encoder 15 which is used to detect the rotational speed of the male part 11 and to detect the position of the punches 110 (in FIG Fig. 2a not shown) of the male part 11 is used. The acquired information is forwarded to the control device 18 via a data line. The control device 18 is connected to an interface via which the machine operator can enter the embossing position 21 on a folding carton blank 2. Based on the provided Information calculates the controller 18, the target speed of the carton in the transport device so that a synchronization of the carton blank 2 relative to the embossing dies 11, 12 takes place by the transport device 13.

In einer alternativen Ausführungsform, welche nicht dargestellt ist, kann sich an der Position des vorgelagerten Transportsystems 3 alternativ ein Anleger zum Anlegen von Faltschachtelzuschnitten 2 befinden. Integriert in den Anleger sind dann ebenfalls ein Sensor 17 und ein Mittel zur Bestimmung der Übergabegeschwindigkeit der Faltschachtelzuschnitte 2 vom Anleger an die Transporteinrichtung 13, analog dem Drehgeber des Transportsystems 16. Die Synchronisation von Prägeposition 21 des Faltschachtelzuschnitts 2 relativ zu den Stempeln 110 der Patrize 11 erfolgt dabei wie oben beschrieben. An die Rotationsprägeeinrichtung 10 können sich entweder weitere Bearbeitungsstationen mit einem nachfolgenden Ausleger oder direkt ein Ausleger anschließen.In an alternative embodiment, which is not shown, may be located at the position of the upstream transport system 3, alternatively, a feeder for applying Faltschachtelzuschnitten 2. Integrated into the feeder are then also a sensor 17 and a means for determining the transfer speed of Faltschachtelzuschnitte 2 from the feeder to the transport device 13, analogous to the encoder of the transport system 16. The synchronization of embossing position 21 of Faltschachtelzuschnitts 2 relative to the punches 110 of the male 11th takes place as described above. To the rotary embossing device 10 can either further processing stations with a subsequent boom or directly connect a boom.

In einer weitem nicht dargestellten alternativen Ausführungsform verfügt die Transporteinrichtung 13 über einen Sensor, welcher die Position eines durch die Förderbänder 131 und 132 transportierten Faltschachtelzuschnitts 2 detektiert, beispielsweise durch die Detektion der Vorderkante des Faltschachtelzuschnitts 2. Die Geschwindigkeit des Faltschachtelzuschnitts 2 zum Zeitpunkt der Detektion entspricht der Geschwindigkeit der Förderbänder 131, 132 und ist durch die Ansteuerung des Elektromotors 14 bestimmt und somit bekannt. Die Position der Stempel 110 der Patrize 11 und die Rotationsgeschwindigkeit der Patrize 11 wird wie oben beschrieben durch einen Drehgeber 15 bestimmt. Diese Informationen werden jeweils der Steuereinrichtung 18 übermittelt, welche daraus die für die Synchronisation von Prägeposition 21 des Faltschachtelzuschnitts 2 relativ zu den Stempeln 110 der Patrize 11 notwendige Beschleunigung der Förderbänder 131 und 132 und damit des Faltschachtelzuschnitts 2 berechnet. Vorteilhaft an dieser Lösung ist, dass alle relevanten Komponenten innerhalb der Rotationsprägeeinrichtung 10 angeordnet sind und diese als Modul verwendet werden kann. Damit ist eine Integration in eine Faltschachtelklebemaschine 1 einfach möglich.In a further alternative embodiment not shown, the transport device 13 has a sensor which detects the position of a folding carton blank 2 transported by the conveyor belts 131 and 132, for example by detecting the front edge of the folding carton blank 2. The speed of the folding carton blank 2 corresponds to the time of detection the speed of the conveyor belts 131, 132 and is determined by the control of the electric motor 14 and thus known. The position of the punches 110 of the male part 11 and the rotational speed of the male part 11 are determined by a rotary encoder 15 as described above. This information is in each case transmitted to the control device 18, which calculates therefrom the acceleration of the conveyor belts 131 and 132 and thus of the folding box blank 2 necessary for the synchronization of embossing position 21 of the folding box blank 2 relative to the punches 110 of the male part 11. An advantage of this solution is that all relevant components are arranged within the rotary embossing device 10 and this can be used as a module. This integration into a Faltschachtelklebemaschine 1 is easily possible.

Fig. 2b zeigt ein Detail der Patrize 11, nämlich die Stempel 110 der Patrize. Die in Rotationsrichtung gesehen vordere Kante 113 wird durch den oder die ersten beim Prägevorgang wirksam werdenden Stempel 111, die hintere Kante 114 durch den oder die letzte bei Prägevorgang wirksame Stempel 112 gebildet. Die Matrize 12 (hier nicht dargestellt) stellt die Negativform der Patrize 11 dar und verfügt über Ausnehmungen, welche die Stempel 110, 111, 112 der Patrize aufnehmen. In Fig. 2c ist ein Faltschachtelzuschnitt 2 dargestellt, welcher in Transportrichtung T bewegt wird und wobei die Prägeposition 21 einer mit einer Prägung 22 zu versehende Fläche angegeben ist. Die mit einer Prägung 22 zu versehende Fläche wird durch die vordere Kante 211 und die hintere Kante 212 begrenzt. Während des Prägevorgangs wird die Vorderkante der Stempel 113 auf die vordere Kante der Prägung 211 und die Hinterkante der Stempel 114 auf die hintere Kante der Prägung 212 abgebildet. Durch die in Fig. 2a dargestellte und obenstehend beschriebene Rotationsprägeeinrichtung 10 erfolgt eine Synchronisation, d. h. eine Positionierung, des Faltschachtelzuschnitts 2 mit seiner Prägeposition 21 relativ zu den Stempeln 110 der Patrize 11. Das Ergebnis des Prägevorgangs ist in Fig. 2d dargestellt: Der Faltschachtelzuschnitt 2 wurde an der ursprünglichen Prägeposition 21 mit einer Prägung 22 versehen. Fig. 2b shows a detail of the male part 11, namely the punch 110 of the male. The front edge 113 seen in the direction of rotation is formed by the one or more stamps 111 which become effective during the stamping process, and the rear edge 114 is formed by the last impression stamping die 112 or stamping process. The die 12 (not shown here) represents the negative mold of the male part 11 and has recesses which receive the punches 110, 111, 112 of the male. In Fig. 2c a folding carton blank 2 is shown, which is moved in the transport direction T and wherein the embossed position 21 is indicated a to be provided with an embossment 22 surface. The area to be provided with an embossment 22 is delimited by the front edge 211 and the rear edge 212. During the embossing process, the leading edge of the punches 113 is imaged onto the leading edge of the imprint 211 and the trailing edge of the punches 114 is imaged onto the trailing edge of the imprint 212. By the in Fig. 2a illustrated and described above, a synchronization takes place, ie a positioning of the carton blank 2 with its embossing position 21 relative to the punches 110 of the male part 11. The result of the embossing process is in Fig. 2d The folding carton blank 2 was embossed 22 at the original embossing position 21.

BezugszeichenlisteLIST OF REFERENCE NUMBERS

11
Faltschachtelklebemaschinegluer
22
Faltschachtelzuschnittfolding box
33
vorgelagertes Transportsystemupstream transport system
1010
RotationsprägeeinrichtungRotary embosser
1111
Patrizepunch
1212
Matrizedie
1313
Transporteinrichtungtransport means
1414
Elektromotorelectric motor
1515
Drehgeber PatrizeRotary encoder male
1616
Drehgeber TransportsystemEncoder transport system
1717
Sensorsensor
1818
Steuereinrichtungcontrol device
2121
Prägepositionembossing position
2222
Prägungembossing
110110
Stempel der PatrizeStamp of the patrix
111111
erster Stempelfirst stamp
112112
letzter Stempellast stamp
113113
Vorderkante der StempelLeading edge of the stamp
114114
Hinterkante der StempelTrailing edge of the stamp
131131
oberes Transportbandupper conveyor belt
132132
unteres Transportbandlower conveyor belt
211211
vordere Kante der mit einer Prägung zu versehenden Flächeleading edge of the surface to be imprinted
212212
hintere Kante der mit einer Prägung zu versehenden Flächeback edge of the area to be embossed
vPvP
Geschwindigkeit PatrizeSpeed male
vMvM
Geschwindigkeit MatrizeSpeed die
vFvF
Geschwindigkeit Faltschachtel im TransportsystemSpeed folding carton in the transport system
vTvT
Geschwindigkeit Faltschachtel in der TransporteinrichtungSpeed folding carton in the transport device
AA
Kartonteilungcarton division

Claims (11)

  1. Rotary embossing device (10) with two rotating embossing tools formed by a male tool (11) with dies (110) and a female tool (12), with at least one embossing tool drive for introducing embossments (22), in particular Braille letters, in printing material (2), in particular folding box blanks,
    wherein
    upstream of the embossing tools (11, 12), the rotary embossing device (10) has a transport device (13) transporting the printing material (2) and driven by a drive (14) that is independent of the at least one embossing tool drive,
    characterized in
    that by modifying the transport speed (vT) of the transport device (13), the printing material (2) is synchronized with respect to its embossing position (21) in terms of the front edge (211) or the rear edge (212) of the surface to be provided with an embossment relative to the first (111) or last (112) die that becomes effective in the embossing process.
  2. Rotary embossing device according to Claim 1,
    characterized in
    that upstream of the transport device (13) of the rotary embossing device (10), a transport system (3) is provided, which has a drive that is independent of the embossing tool drive and the drive of the transport device.
  3. Rotary embossing device according to Claim 1 or 2,
    characterized in
    that the drive of the transport device (13) is formed by an electric motor (14).
  4. Rotary embossing device according to any one of Claims 2 to 3,
    characterized in
    that the rotary embossing device (10) includes a means (15) for determining the rotary speed of the male tool (11) and the position of the dies (110) of the male tool (11) and that the upstream transport system (3) includes at least one sensor (17) for determining the position of a transported printing material (2) and a means (16) for determining the transport speed (vF) of the printing material (2).
  5. Rotary embossing device according to Claim 4,
    characterized in
    that the means (15, 16) are rotary encoders or sensors.
  6. Rotary embossing device according to Claim 4 or 5,
    characterized in
    that the means (15, 16), the sensor (17) and the electric motor (14) are connected to a control device (18) by data lines.
  7. Rotary embossing device according to any one of Claims 1 to 6,
    characterized in
    that the transport device (13) includes a lower (132) and an upper transport belt (131) between which the printing material (2) is clampable.
  8. Rotary embossing device according to one of Claims 2 to 7,
    characterized in
    that the embossing tools (11, 12), transport device (13) and upstream transport system (3) are operated at approximately constant speeds.
  9. Rotary embossing device according to any one of Claims 2 to 7,
    characterized in
    that the embossing tools (11, 12) and the upstream transport system (3) are operated at approximately constant speeds and that the transport speed of the transport device (vT) follows a velocity profile prescribed by the control unit (18).
  10. Method for operating a rotary embossing device according to any one of Claims 6 - 9, characterized in
    that the data established by the means (15, 16) for determining the rotary speed of the male tool (11) and the position of the dies (110) of the male tool (11) and for determining the transport speed (vF) of the printing material (2) and by the sensor (17) are transferred to the control device (18), that the embossing position (21) of a printing material (2) is input into the control device (18), that the control device (18) calculates the required transport speed (vT) of the transport device (13) to synchronize the printing material (2) in terms of its embossing position (21) relative to the dies (110) of the male tool (11) and actuates the electric motor (14) of the transport device (13) accordingly, the printing material (2) being synchronized in terms of its embossing position (21) relative to the first (111) or last die that becomes effective in the embossing process.
  11. Folder-gluer (1) comprising a rotary embossing device (10) according to any one of Claims 1 to 9.
EP08105684.8A 2007-11-12 2008-10-29 Rotation stamping device Not-in-force EP2058115B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102007053806A DE102007053806A1 (en) 2007-11-12 2007-11-12 Rotary embosser

Publications (3)

Publication Number Publication Date
EP2058115A2 EP2058115A2 (en) 2009-05-13
EP2058115A3 EP2058115A3 (en) 2012-03-07
EP2058115B1 true EP2058115B1 (en) 2014-06-18

Family

ID=40262387

Family Applications (1)

Application Number Title Priority Date Filing Date
EP08105684.8A Not-in-force EP2058115B1 (en) 2007-11-12 2008-10-29 Rotation stamping device

Country Status (3)

Country Link
EP (1) EP2058115B1 (en)
DE (1) DE102007053806A1 (en)
ES (1) ES2484846T3 (en)

Cited By (1)

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EP3072690A1 (en) 2015-03-25 2016-09-28 Heidelberger Druckmaschinen AG Sheet fed printer with accelerating station

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IT1400853B1 (en) * 2010-05-14 2013-07-02 Petratto AUXILIARY MODULAR UNIT FOR A SHEET-MOLDED WORKING LINE IN SHEET AND LINE INCLUDING SUCH UNIT
DE102010036011A1 (en) * 2010-08-31 2012-03-01 Heidelberger Druckmaschinen Ag Braille sleeve
EP2422969B1 (en) 2010-08-31 2013-09-11 Heidelberger Druckmaschinen AG Folding box gluing machine
DE102011116294A1 (en) * 2011-10-18 2013-04-18 Heidelberger Druckmaschinen Ag Method for operating a device for embossing
CN106064496B (en) * 2016-07-28 2018-01-19 谷山扬州机械有限公司 One kind nail case paste case tripper
CN112722477A (en) * 2020-12-22 2021-04-30 湖州清优包装材料有限公司 Automatic carton inner wall marking device for logistics

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JP3422718B2 (en) * 1999-03-24 2003-06-30 株式会社オーエム製作所 Stamping device
DE10241448A1 (en) 2002-09-06 2004-03-18 Bahmüller Maschinenbau und Präzisionswerkzeug GmbH Folding machine with increased throughput
NL1024915C2 (en) 2003-12-01 2005-06-06 Jean Henry Robert Madern Device for making a cut, groove and the like, comprising a plate-shaped system.
DE10306210A1 (en) 2003-02-13 2004-08-26 Hermann Hötten Maschinenbau GmbH Method and device for double-sided transverse creasing of continuous webs
DE102004012694A1 (en) * 2004-03-16 2005-10-06 Heidelberger Druckmaschinen Ag Feeder for a punching or embossing device
US7096529B2 (en) * 2004-12-06 2006-08-29 Sun Automation Inc. Box finishing machine with cleaning apparatus and method
ITBO20050114A1 (en) * 2005-03-02 2005-06-01 Gd Spa EMBOSSING UNIT OF A WRAPPING MATERIAL TAPE
DE202005017869U1 (en) * 2005-11-16 2006-07-13 Rosas Wolf, David Single copy feeder and transport system for producing a folded printed box for the pharmaceutical industry comprises a feeder disposed with a register control unit via a servo drive
DE102006006708B4 (en) * 2006-02-13 2008-02-14 Cito-System Gmbh Methods and apparatus for the production of Braille embossing profiles and braille embossing as well as Braille embossing profiles as such
DE102007044827A1 (en) * 2006-11-08 2008-05-15 Heidelberger Druckmaschinen Ag Folded box gluing machine, has conveying belts arranged to deliver blanks through orienting station and pre-breaker station, and embossing mechanism with dies arranged between two stations so as to emboss blanks

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3072690A1 (en) 2015-03-25 2016-09-28 Heidelberger Druckmaschinen AG Sheet fed printer with accelerating station
DE102015205453A1 (en) 2015-03-25 2016-09-29 Heidelberger Druckmaschinen Ag Sheet-fed press with acceleration station

Also Published As

Publication number Publication date
EP2058115A3 (en) 2012-03-07
ES2484846T3 (en) 2014-08-12
DE102007053806A1 (en) 2009-05-14
EP2058115A2 (en) 2009-05-13

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