EP2733100B1 - Device and method for processing a web of material or sheets of material - Google Patents

Device and method for processing a web of material or sheets of material Download PDF

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Publication number
EP2733100B1
EP2733100B1 EP12192995.4A EP12192995A EP2733100B1 EP 2733100 B1 EP2733100 B1 EP 2733100B1 EP 12192995 A EP12192995 A EP 12192995A EP 2733100 B1 EP2733100 B1 EP 2733100B1
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EP
European Patent Office
Prior art keywords
generating
airflow
vacuum suction
suction plate
material web
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
EP12192995.4A
Other languages
German (de)
French (fr)
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EP2733100A1 (en
Inventor
Michael Galvin
Steve McGuinness
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.)
Mayr Melnhof Karton AG
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Mayr Melnhof Karton 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.)
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Publication date
Application filed by Mayr Melnhof Karton AG filed Critical Mayr Melnhof Karton AG
Priority to EP12192995.4A priority Critical patent/EP2733100B1/en
Priority to PL12192995T priority patent/PL2733100T3/en
Priority to ES12192995.4T priority patent/ES2637370T3/en
Publication of EP2733100A1 publication Critical patent/EP2733100A1/en
Application granted granted Critical
Publication of EP2733100B1 publication Critical patent/EP2733100B1/en
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H29/00—Delivering or advancing articles from machines; Advancing articles to or into piles
    • B65H29/68—Reducing the speed of articles as they advance
    • B65H29/686—Pneumatic brakes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2406/00—Means using fluid
    • B65H2406/10—Means using fluid made only for exhausting gaseous medium
    • B65H2406/12—Means using fluid made only for exhausting gaseous medium producing gas blast
    • B65H2406/122—Nozzles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2701/00—Handled material; Storage means
    • B65H2701/10—Handled articles or webs
    • B65H2701/17—Nature of material
    • B65H2701/176—Cardboard
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2801/00—Application field
    • B65H2801/42—Die-cutting

Definitions

  • the invention relates to a device for processing a material web or sheets of paper, cardboard, plastic and the like, comprising at least one processing station and at least one transport system for transporting the sheets to the processing station, wherein at least one vacuum suction plate is arranged immediately before or in the processing station in such a way that the vacuum suction plate is run over by the material web or the material sheet and these are thereby braked in the transport direction by the negative pressure generated by means of at least one negative pressure device connected to the vacuum suction plate.
  • the invention further relates to a method for processing a material web or material sheets of paper, cardboard, plastic and the like.
  • Devices for processing a web of material or sheets of paper, cardboard, plastic or the like are known in a wide variety. From the WO 2011/160816 A1 and the DE 14 11 325 A1 Devices and methods with the features of the preambles of claims 1 and 13 are known. Particularly in the packaging industry, such devices find use in the manufacture of packaging, cartons and other packaging products.
  • Generic devices usually have at least one processing station, which must pass through the material webs or material sheets to be processed.
  • Such a processing station can be, for example, a sheet punching device or a sheet embossing device.
  • several processing stations are usually connected in series to carry out different processing steps.
  • the braking of the material web or material sheet takes place in the transport direction by means of a vacuum device, in particular a vacuum suction plate, which is run over by the material web or the material sheet. Due to the pressure prevailing in the vacuum suction plate negative pressure, the material web or the material sheet are braked accordingly.
  • the disadvantage here is the fact that due to the braking of the material web or the material sheet, there is a wrinkling or swelling of the material web or the material sheet in the area in front of the corresponding processing station.
  • wrinkling or swelling complicates the exact positioning of the material to be processed web or the material sheet to be processed. This can lead to incorrect positioning of the material web or material sheet to be processed.
  • this can lead to a complete disruption of the processing cycle, especially if there is a mispositioning of the material web or the material sheet before or within the respective processing station.
  • at least one vacuum suction plate is arranged directly in front of or in the processing station, such that the vacuum suction plate is run over by the material web or the material sheet and these are braked in the transport direction by the negative pressure generated by means of at least one vacuum device connected to the vacuum suction plate.
  • At least one device is in each case arranged above the at least one vacuum suction plate for producing an air stream acting on the material web or the material sheet while the vacuum suction plate is being moved over, wherein the device for generating an air flow is connected to at least one air source.
  • the device for generating an air flow has at least two sections which can be separately connected and / or disconnected, each having at least one opening for the air outlet. Furthermore, it is possible to make the device for generating an air flow adjustable in length. By means of these design options, the device for generating an air flow can be individually matched to the material webs or material sheets to be processed. Thus, it is advantageously ensured that always the desired areas of the material web or the material sheet are subjected to a corresponding air flow.
  • the device for generating an air flow channel-like or hose-like has at least one connection for the supply of air and at least one opening for the air outlet.
  • the device for generating the air flow can be adapted to the structural conditions of the processing station or the machine requirements.
  • a valve is arranged in the Opening for the air outlet.
  • the valve has an approximately rectangular or gap-shaped air outlet opening. But it is also possible that air outlet openings are provided with other cross-sections, such as round or oval cross-sections in the valve.
  • the longitudinal axes of the air outlet openings can be arranged to run parallel to one another and / or be arranged on a longitudinal axis.
  • the air flow may be fan-shaped, such that a broad side of the fan impinges on a surface of the material web or the material sheet.
  • the aforementioned embodiments exert a uniform pressure on the material web or the material sheet, so that in turn reliable unintentional folding or swelling of the material web to be processed or of the material sheet to be processed is prevented.
  • a longitudinal axis of the device for generating an air flow is arranged to extend approximately parallel to a longitudinal axis of the vacuum suction plate. Furthermore, the longitudinal axis of the device for generating an air flow may be designed to extend approximately perpendicular to the transport direction of the material web or material sheet.
  • the device for generating an air flow on a movable or non-movable part of the processing station is detachably or non-detachably arranged. Due to the configuration of the device according to the invention, it is possible to adapt these to the structural requirements of the processing station. The latter are defined by the design and function of the respective processing station.
  • the processing station is a sheet punching device, a sheet embossing device, a stamp device, a printing device, a stacking device, a device for producing benefits from a sheet of material, a waste material stripper, a sheet delivery device or aforementioned.
  • Other processing stations for processing a material web or material sheets of paper, cardboard, plastic or the like are conceivable.
  • a method for processing a material web or material sheets of paper, cardboard, plastic and the like comprises the following method steps: a) transporting the material web or a material sheet to a processing station; b) braking the material web or the material sheet before or in the processing station by means of at least one vacuum suction plate, which is run over by the material web or the material sheet, wherein the material web or the material sheet thereby braked by the means of at least one negative pressure device connected to the vacuum device vacuum generated in the transport direction becomes; c) generating an air flow acting on the web or sheet of material during overrunning of the vacuum suction plate by means of at least one device for generating an air stream disposed above the vacuum suction plate, the device for generating an air stream being connected to at least one air source; and d) switching on and / or off at least one of at least two separately connectable and / or disconnectable sections of the device for generating an air flow, which have at least one respective opening for the air outlet.
  • the air flow is fan-shaped, such that a broad side of the fan impinges on a surface of the material web or the material sheet. This advantageously ensures that the entire width of the material web or the material sheet is acted upon by the air flow.
  • Fig. 1 shows a schematic representation of an apparatus 10 according to the invention for processing a material web or material sheet 12 made of paper, cardboard, plastic or the like according to a first embodiment.
  • the device 10 in this case comprises a processing station 14, which is ahydroxytrennvoriques in the illustrated embodiment.
  • the apparatus 10 further comprises a transport system for transporting the sheet 12 shown in the embodiment to the processing station 14. The transport system is not shown.
  • a vacuum suction plate 16 is arranged, which is run over by the material sheet 12.
  • the material sheets 12 are thereby braked by the negative pressure generated in the transport direction T by means of a vacuum device (not shown) connected to the vacuum suction plate 16.
  • the vacuum suction plate 16 has a plurality of openings 38, which are connected to said negative pressure device.
  • the material sheets 12 are pulled over a type of mask 52 by means of a gripping and transport device 44, the mask 52 having recesses 42 for receiving the blanks 46 separated from the material sheets 12, namely the so-called benefit.
  • punch 40 are arranged, wherein the punches 40 are arranged on a movable part 30 of the processing station 14.
  • the utility 46 are pressed into the recesses 42 for receiving the benefit 46.
  • the movable part 30 of the processing station 14 is raised again.
  • the Hubziscardien of the movable part 30 are indicated by H.
  • the movable part 30 is in turn arranged to be movable on a machine frame 50 of the processing station 14.
  • a device 18 for producing an air flow acting on the material sheet 12 while the vacuum plate 16 is being moved over To generate an air flow while the device 18 with an air source (not shown) is connected.
  • the device 18 is channel-like and having a port 20 for the supply of air.
  • a plurality of openings 22 for the air outlet is formed in the openings 22, a valve 24 is arranged in each case, which in Fig. 3 is described in more detail.
  • the device 18 for generating the air flow is attached to the movable part 30 of the processing station 14. The attachment can be solvable or non-detachable.
  • the device 18 moves with the movable part 30 according to the Hubzisraumen H.
  • the operation of the device 10 can be described as follows:
  • the sheet of material 12 is transported to the processing station 14. Within the processing station 14, this is braked by means of the vacuum suction plate 16 and the pressure prevailing directly above the vacuum suction plate 16 negative pressure. At the same time, the movable part 30 is lowered by means of the punches 40 of the processing station 14. The air flow generated by the device 18 is thereby brought relatively close to the surface 28 of the material sheet 12 above the vacuum suction plate 16. By acting on the surface 28 of the machining sheet 12 air flow wrinkling or bulging of the sheet of material 12 is reliably prevented during the deceleration process. This results in a good positioning of the individual material sheet 12, which is finally pulled by the gripping and transport device 44 in its processing position. After removal of the benefits 46, the movable part 30 with the punches 40 arranged thereon picks up again, so that a following material sheet 12 can be processed.
  • Fig. 1 is further shown that the device 18 for generating the air flow via the terminal 20 and a corresponding air-conducting connection hose 36 with the air source (not shown) is connected.
  • the air flow generated by the device 18 can be adjusted in a pressure range of 0.5 to 20 bar. Even higher pressures are conceivable.
  • Fig. 2 shows a schematic representation of the device 18 for generating an air flow according to the in Fig. 1 illustrated embodiment. It can be seen that the device 18 is channel-shaped. In the illustrated embodiment, the device 18 has a square cross-section.
  • connection 20 for the connection of the in Fig. 1 shown connecting hose 36 for connection to the air source.
  • a plurality of openings 22 for the air outlet are arranged.
  • the device 18 is shown without valves 22 disposed in the openings 22.
  • Fig. 3 shows a schematic representation of a valve 24 of in Fig. 2 illustrated device 18 for generating an air flow.
  • the valve is shown in a plan view of the air outlet opening 26. It can be seen that the air outlet opening 26 is formed rectangular or slit-like.
  • the air outlet openings 26 may also have any other suitable shape.
  • the valves 24 are arranged in the device 18 for generating the air flow or in the corresponding air outlet openings 22 such that the longitudinal axes of two juxtaposed valves 24 are parallel to each other axis parallel and / or arranged on a common longitudinal axis. This results in a wall-like air flow, which may also be designed fan-shaped. In this case, the broad side of the fan is directed onto the surface 28 of the sheet of material 12 (see Fig. 1 ). Inside, the valve 24 may be conical.
  • Fig. 4 shows a schematic representation of an apparatus 10 for processing a material web or material sheet 12 made of paper, cardboard, plastic or the like according to a second embodiment.
  • the device 18 for generating an air flow is in turn arranged on a movable part 30 of the processing station 14.
  • the device 18 in turn generates an air flow which impinges on the surface 28 of the material sheet 12 in the region of the vacuum suction plate 16.
  • the device 18 for generating the air flow through the port 20 and the connecting tube 36 with a Terminal 34 of a distribution device 32 air-conductively connected.
  • the distribution device 32 in this case has a plurality of connections 34, to which the connection hose 36 can be coupled to the device 18.
  • the distributor device 32 is connected to a vacuum device (not shown). It can be seen that the distributor device 32 is likewise arranged on the movable part 30 of the processing station 14 and thus moves in the same time and in the same direction as the device 18 for generating the air flow.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Making Paper Articles (AREA)
  • Advancing Webs (AREA)
  • Delivering By Means Of Belts And Rollers (AREA)
  • Separation, Sorting, Adjustment, Or Bending Of Sheets To Be Conveyed (AREA)

Description

Die Erfindung betrifft eine Vorrichtung zur Bearbeitung einer Materialbahn oder von Materialbogen aus Papier, Karton, Kunststoff und dergleichen, umfassend mindestens eine Bearbeitungsstation und mindestens ein Transportsystem für den Transport der Bogen zu der Bearbeitungsstation, wobei unmittelbar vor oder in der Bearbeitungsstation mindestens eine Vakuumsaugplatte angeordnet ist, derart, dass die Vakuumsaugplatte von der Materialbahn oder den Materialbogen überfahren wird und diese dabei durch den mittels mindestes einer mit der Vakuumsaugplatte verbundenen Unterdruckeinrichtung erzeugten Unterdruck in Transportrichtung abgebremst werden. Die Erfindung betrifft weiterhin ein Verfahren zur Bearbeitung einer Materialbahn oder von Materialbogen aus Papier, Karton, Kunststoff und dergleichen.The invention relates to a device for processing a material web or sheets of paper, cardboard, plastic and the like, comprising at least one processing station and at least one transport system for transporting the sheets to the processing station, wherein at least one vacuum suction plate is arranged immediately before or in the processing station in such a way that the vacuum suction plate is run over by the material web or the material sheet and these are thereby braked in the transport direction by the negative pressure generated by means of at least one negative pressure device connected to the vacuum suction plate. The invention further relates to a method for processing a material web or material sheets of paper, cardboard, plastic and the like.

Vorrichtungen zur Bearbeitung einer Materialbahn oder von Materialbogen aus Papier, Karton, Kunststoff oder dergleichen sind in einer großen Vielzahl bekannt. Aus der WO 2011/160816 A1 und der DE 14 11 325 A1 sind Vorrichtungen und Verfahren mit den Merkmalen der Oberbegriffe der Ansprüche 1 und 13 bekannt. Insbesondere in der Verpackungsindustrie finden derartige Vorrichtungen Verwendung zur Herstellung von Verpackungen, Faltschachteln und anderen Verpackungsprodukten. Gattungsgemäße Vorrichtungen weisen üblicherweise mindestens eine Bearbeitungsstation auf, welche die zu verarbeitenden Materialbahnen oder Materialbogen durchlaufen müssen. Bei einer derartigen Bearbeitungsstation kann es sich zum Beispiel um eine Bogenstanzvorrichtung oder eine Bogenprägevorrichtung handeln. Um den Produktionsablauf zu beschleunigen werden üblicherweise mehrere Bearbeitungsstationen zur Durchführung unterschiedlicher Bearbeitungsschritte hintereinandergeschaltet. Um eine exakte Ver- und Bearbeitung der die Vorrichtung durchlaufenden Materialbahn bzw. Materialbogen zu gewährleisten, müssen diese zumindest teilweise vor der Bearbeitung in den einzelnen Bearbeitungsstationen abgebremst und dabei entsprechend positioniert werden. Nur durch das Verringern der Transportgeschwindigkeit der Materialbahn bzw. des Materialbogens ist eine exakte Positionierung dieser in der jeweiligen Bearbeitungsstation möglich. Gemäß dem Stand der Technik erfolgt das Abbremsen der Materialbahn bzw. Materialbogen in Transportrichtung mittels einer Unterdruckeinrichtung, insbesondere einer Vakuumsaugplatte, die von der Materialbahn oder dem Materialbogen überfahren wird. Durch den im Bereich der Vakuumsaugplatte herrschenden Unterdruck werden die Materialbahn bzw. die Materialbogen entsprechend abgebremst. Nachteilig hierbei ist jedoch die Tatsache, dass durch das Abbremsen der Materialbahn bzw. der Materialbogen es zu einer Faltenbildung bzw. Aufwellung der Materialbahn bzw. der Materialbogen im Bereich vor der entsprechenden Bearbeitungsstation kommt. Eine derartige Faltenbildung bzw. Aufwellung erschwert aber die exakte Positionierung der zu bearbeitenden Materialbahn bzw. des zu bearbeitenden Materialbogens. Dies kann bis zu einer Fehlpositionierung der zu bearbeitenden Materialbahn bzw. des Materialbogens führen. Neben einem verzögerten Produktionsablauf kann dies bis zu einer kompletten Störung des Bearbeitungszyklus führen, insbesondere wenn es zu einer Fehlpositionierung der Materialbahn bzw. des Materialbogens vor oder innerhalb der jeweiligen Bearbeitungsstation kommt.Devices for processing a web of material or sheets of paper, cardboard, plastic or the like are known in a wide variety. From the WO 2011/160816 A1 and the DE 14 11 325 A1 Devices and methods with the features of the preambles of claims 1 and 13 are known. Particularly in the packaging industry, such devices find use in the manufacture of packaging, cartons and other packaging products. Generic devices usually have at least one processing station, which must pass through the material webs or material sheets to be processed. Such a processing station can be, for example, a sheet punching device or a sheet embossing device. In order to accelerate the production process, several processing stations are usually connected in series to carry out different processing steps. In order to ensure an accurate processing of the material web or material sheet passing through the device, they must be at least partially braked before processing in the individual processing stations and thereby positioned accordingly. Only by reducing the transport speed of the material web or the material sheet is an exact Positioning this possible in the respective processing station. According to the prior art, the braking of the material web or material sheet takes place in the transport direction by means of a vacuum device, in particular a vacuum suction plate, which is run over by the material web or the material sheet. Due to the pressure prevailing in the vacuum suction plate negative pressure, the material web or the material sheet are braked accordingly. The disadvantage here, however, is the fact that due to the braking of the material web or the material sheet, there is a wrinkling or swelling of the material web or the material sheet in the area in front of the corresponding processing station. However, such wrinkling or swelling complicates the exact positioning of the material to be processed web or the material sheet to be processed. This can lead to incorrect positioning of the material web or material sheet to be processed. In addition to a delayed production process, this can lead to a complete disruption of the processing cycle, especially if there is a mispositioning of the material web or the material sheet before or within the respective processing station.

Es ist daher Aufgabe der vorliegenden Erfindung, eine gattungsgemäße Vorrichtung zur Bearbeitung einer Materialbahn oder von Materialbogen aus Papier, Karton, Kunststoff und dergleichen bereitzustellen, welche eine Faltenbildung und/oder ein Aufwellen der Materialbahn oder Materialbogen vor oder in einer Bearbeitungsstation der Vorrichtung zuverlässig verhindert. Es ist weiterhin Aufgabe der vorliegenden Erfindung ein Verfahren zur Bearbeitung einer Materialbahn oder von Materialbogen aus Papier, Karton, Kunststoff und dergleichen zu schaffen, welches ebenfalls eine Faltenbildung und/oder ein Aufwellen der Materialbahn oder Materialbogen vor oder in einer Bearbeitungsstation der Vorrichtung zuverlässig verhindert.It is therefore an object of the present invention to provide a generic device for processing a web or sheets of paper, cardboard, plastic and the like, which reliably prevents wrinkling and / or buckling of the web or sheet of material before or in a processing station of the device. It is another object of the present invention to provide a method for processing a web or sheets of paper, cardboard, plastic and the like, which also reliably prevents wrinkling and / or buckling of the web or sheet of material before or in a processing station of the device.

Diese Aufgaben werden durch eine Vorrichtung mit den Merkmalen des Patentanspruchs 1 sowie durch ein Verfahren mit den Merkmalen des Patentanspruchs 13 gelöst. Vorteilhafte Ausgestaltungen mit zweckmäßigen Weiterbildungen der Erfindung sind in den übrigen Ansprüchen angegeben, wobei vorteilhafte Ausgestaltungen der Vorrichtung als vorteilhafte Ausgestaltungen des erfindungsgemäßen Verfahrens und umgekehrt anzusehen sind.These objects are achieved by a device having the features of patent claim 1 and by a method having the features of patent claim 13. Advantageous embodiments with expedient developments of the invention are specified in the remaining claims, wherein advantageous embodiments of the device are to be regarded as advantageous embodiments of the method according to the invention and vice versa.

Eine erfindungsgemäße Vorrichtung zur Bearbeitung einer Materialbahn oder von Materialbogen aus Papier, Karton, Kunststoff und dergleichen umfasst mindestens eine Bearbeitungsstation und mindestens ein Transportsystem für den Transport der Bahn oder der Bogen zu der Bearbeitungsstation. Dabei ist unmittelbar vor oder in der Bearbeitungsstation mindestens eine Vakuumsaugplatte angeordnet, derart, dass die Vakuumsaugplatte von der Materialbahn oder den Materialbogen überfahren wird und diese dabei durch den mittels mindestens einem mit der Vakuumsaugplatte verbundenen Unterdruckeinrichtung erzeugten Unterdruck in Transportrichtung abgebremst werden. Über der mindestens einen Vakuumsaugplatte ist jeweils mindestens eine Vorrichtung zur Erzeugung eines auf die Materialbahn oder den Materialbogen während dem Überfahren der Vakuumsaugplatte wirkenden Luftstroms angeordnet, wobei die Vorrichtung zur Erzeugung eines Luftstroms mit mindestens einer Luftquelle verbunden ist. Durch den von oben auf die entsprechende Oberfläche der Materialbahn oder des Materialbogens wirkenden Luftstroms wird zuverlässig verhindert, dass diese während des Abbremsvorgangs im Bereich der Vakuumsaugplatte Falten werfen oder aufwellen. Der Luftstrom glättet die Materialbahn bzw. den Materialbogen und hält diesen nieder. Eine Faltenbildung und/oder ein Aufwellen der Materialbahn oder der Materialbogen vor der Bearbeitungsstation wird zuverlässig verhindert. Zudem weist die Vorrichtung zur Erzeugung eines Luftstroms mindestens zwei jeweils getrennt zu- und/oder abschaltbare Abschnitte mit jeweils mindestens einer Öffnung für den Luftaustritt auf. Des Weiteren besteht die Möglichkeit, die Vorrichtung zur Erzeugung eines Luftstroms längenverstellbar auszubilden. Durch diese Ausgestaltungsmöglichkeiten kann die Vorrichtung zur Erzeugung eines Luftstroms auf die zu verarbeitenden Materialbahnen oder Materialbogen individuell abgestimmt werden. Somit ist vorteilhafterweise gewährleistet, dass immer die gewünschten Bereiche der Materialbahn oder der Materialbogen mit einem entsprechenden Luftstrom beaufschlagt werden.An apparatus according to the invention for processing a material web or material sheets of paper, cardboard, plastic and the like comprises at least one processing station and at least one transport system for transporting the web or sheets to the processing station. In this case, at least one vacuum suction plate is arranged directly in front of or in the processing station, such that the vacuum suction plate is run over by the material web or the material sheet and these are braked in the transport direction by the negative pressure generated by means of at least one vacuum device connected to the vacuum suction plate. At least one device is in each case arranged above the at least one vacuum suction plate for producing an air stream acting on the material web or the material sheet while the vacuum suction plate is being moved over, wherein the device for generating an air flow is connected to at least one air source. The air flow acting from above onto the corresponding surface of the material web or the material sheet is reliably prevented from causing it to wrinkle or buckle during the deceleration process in the area of the vacuum suction plate. The air stream smoothes the material web or the material sheet and holds it down. A wrinkling and / or a swelling of the material web or the material sheet in front of the processing station is reliably prevented. In addition, the device for generating an air flow has at least two sections which can be separately connected and / or disconnected, each having at least one opening for the air outlet. Furthermore, it is possible to make the device for generating an air flow adjustable in length. By means of these design options, the device for generating an air flow can be individually matched to the material webs or material sheets to be processed. Thus, it is advantageously ensured that always the desired areas of the material web or the material sheet are subjected to a corresponding air flow.

In weiteren vorteilhaften Ausgestaltungen der erfindungsgemäßen Vorrichtung ist die Vorrichtung zur Erzeugung eines Luftstroms kanal- oder schlauchartig ausgebildet und weist mindestens einen Anschluss für die Zuführung von Luft und mindestens eine Öffnung für den Luftaustritt auf. Vorteilhafterweise kann die Vorrichtung zur Erzeugung des Luftstroms den baulichen Gegebenheiten der Bearbeitungsstation bzw. den Maschinenanforderungen angepasst werden. Des Weiteren ist es möglich, dass in der Öffnung für den Luftaustritt ein Ventil angeordnet ist. In einer Ausführungsform weist das Ventil dabei eine ungefähr rechteckige oder spaltförmige Luftaustrittsöffnung auf. Es ist aber auch möglich, dass Luftaustrittsöffnungen mit anderen Querschnitten, wie zum Beispiel runden oder ovalen Querschnitten, in dem Ventil vorgesehen sind. Bei einer ungefähr rechteckigen oder spaltförmigen Luftaustrittsöffnung des Ventils können die Längsachsen der Luftaustrittsöffnungen zueinander achsparallel verlaufend angeordnet sein und/oder auf einer Längsachse angeordnet sein. Dadurch ist es möglich, dass der auf die Oberfläche der Materialbahn bzw. die Oberfläche des Materialbogens wirkende Luftstrom einerseits eine gleichmäßige Größe aufweist und andererseits wandartig ausgebildet ist. Insbesondere kann der Luftstrom dabei fächerartig ausgebildet sein, derart, dass eine Breitseite des Fächers auf eine Oberfläche der Materialbahn oder des Materialbogens auftrifft. Die genannten Ausgestaltungen üben einen gleichmäßigen Druck auf die Materialbahn oder den Materialbogen aus, sodass wiederum zuverlässig ein unbeabsichtigtes Falten oder eine Aufwellung der zu bearbeitenden Materialbahn oder des zu bearbeitenden Materialbogens verhindert wird.In further advantageous embodiments of the device according to the invention, the device for generating an air flow channel-like or hose-like and has at least one connection for the supply of air and at least one opening for the air outlet. Advantageously, the device for generating the air flow can be adapted to the structural conditions of the processing station or the machine requirements. Furthermore, it is possible that in the Opening for the air outlet a valve is arranged. In one embodiment, the valve has an approximately rectangular or gap-shaped air outlet opening. But it is also possible that air outlet openings are provided with other cross-sections, such as round or oval cross-sections in the valve. In the case of an approximately rectangular or gap-shaped air outlet opening of the valve, the longitudinal axes of the air outlet openings can be arranged to run parallel to one another and / or be arranged on a longitudinal axis. This makes it possible that the air flow acting on the surface of the material web or the surface of the material sheet on the one hand has a uniform size and on the other hand is formed like a wall. In particular, the air flow may be fan-shaped, such that a broad side of the fan impinges on a surface of the material web or the material sheet. The aforementioned embodiments exert a uniform pressure on the material web or the material sheet, so that in turn reliable unintentional folding or swelling of the material web to be processed or of the material sheet to be processed is prevented.

In weiteren vorteilhaften Ausgestaltungen der erfindungsgemäßen Vorrichtung ist eine Längsachse der Vorrichtung zur Erzeugung eines Luftstroms ungefähr parallel zu einer Längsachse der Vakuumsaugplatte verlaufend angeordnet. Des Weiteren kann die Längsachse der Vorrichtung zur Erzeugung eines Luftstroms ungefähr senkrecht zu der Transportrichtung der Materialbahn oder Materialbogen verlaufend ausgebildet sein. Durch diese räumlichen Anordnungen ist ein besonders vorteilhaftes Wechselspiel zwischen dem von der Vakuumsaugplatte ausgeübten Unterdruck und den auf die Materialbahn oder den Materialbogen wirkenden Luftstrom gewährleistet.In further advantageous embodiments of the device according to the invention, a longitudinal axis of the device for generating an air flow is arranged to extend approximately parallel to a longitudinal axis of the vacuum suction plate. Furthermore, the longitudinal axis of the device for generating an air flow may be designed to extend approximately perpendicular to the transport direction of the material web or material sheet. These spatial arrangements ensure a particularly advantageous interplay between the negative pressure exerted by the vacuum suction plate and the air flow acting on the material web or the material sheet.

In weiteren vorteilhaften Ausgestaltungen der erfindungsgemäßen Vorrichtung ist die Vorrichtung zur Erzeugung eines Luftstroms an einem beweglichen oder nichtbeweglichen Teil der Bearbeitungsstation lösbar oder nicht-lösbar angeordnet. Aufgrund der Ausgestaltung der erfindungsgemäßen Vorrichtung ist es möglich, diese den baulichen Anforderungen der Bearbeitungsstation anzupassen. Letztere werden durch die Ausgestaltung und Funktion der jeweiligen Bearbeitungsstation definiert.In further advantageous embodiments of the device according to the invention, the device for generating an air flow on a movable or non-movable part of the processing station is detachably or non-detachably arranged. Due to the configuration of the device according to the invention, it is possible to adapt these to the structural requirements of the processing station. The latter are defined by the design and function of the respective processing station.

In weiteren vorteilhaften Ausgestaltungen der erfindungsgemäßen Vorrichtung ist die Bearbeitungsstation eine Bogenstanzvorrichtung, eine Bogenprägevorrichtung, eine Stempelvorrichtung, eine Druckvorrichtung, eine Stapelvorrichtung, eine Vorrichtung zur Herstellung von Nutzen aus einem Materialbogen, eine Materialabfall-Ausbrechvorrichtung, eine Bogenauslagevorrichtung oder eine Nutzentrennvorrichtung. Auch andere Bearbeitungsstationen zur Bearbeitung einer Materialbahn oder von Materialbogen aus Papier, Karton, Kunststoff oder dergleichen sind denkbar.In further advantageous embodiments of the device according to the invention, the processing station is a sheet punching device, a sheet embossing device, a stamp device, a printing device, a stacking device, a device for producing benefits from a sheet of material, a waste material stripper, a sheet delivery device or a Nutzentrennvorrichtung. Other processing stations for processing a material web or material sheets of paper, cardboard, plastic or the like are conceivable.

Ein erfindungsgemäßes Verfahren zur Bearbeitung einer Materialbahn oder von Materialbogen aus Papier, Karton, Kunststoff und dergleichen umfasst folgende Verfahrensschritte: a) Transportieren der Materialbahn oder eines Materialbogens zu einer Bearbeitungsstation; b) Abbremsen der Materialbahn oder des Materialbogens vor oder in der Bearbeitungsstation mittels mindestens einer Vakuumsaugplatte, die von der Materialbahn oder dem Materialbogen überfahren wird, wobei die Materialbahn oder der Materialbogen dabei durch den mittels mindestens einer mit der Vakuumsaugplatte verbundenen Unterdruckeinrichtung erzeugten Unterdruck in Transportrichtung abgebremst wird; c) Erzeugung eines auf die Materialbahn oder den Materialbogen wirkenden Luftstroms während des Überfahrens der Vakuumsaugplatte mittels mindestens einer über der Vakuumsaugplatte angeordneten Vorrichtung zur Erzeugung eines Luftstroms, wobei die Vorrichtung zur Erzeugung eines Luftstroms mit mindestens einer Luftquelle verbunden ist; und d) Zu- und/oder Abschalten zumindest eines von mindestens zwei jeweils getrennt zu- und/oder abschaltbaren Abschnitten der Vorrichtung zur Erzeugung eines Luftstroms, welche mindestens jeweils eine Öffnung für den Luftaustritt aufweisen. Vorteilhafterweise wird mit dem erfindungsgemäßen Verfahren zuverlässig verhindert, dass es bei einem Abbremsen der zu bearbeitenden Materialbahn oder dem zu bearbeitenden Materialbogen vor oder in einer Bearbeitungsstation zu einer Faltenbildung und/oder einem Aufwellen der Materialbahn oder des Materialbogens kommt. Zudem ist hierdurch eine exakte und zuverlässige Positionierung der Materialbahn oder der einzelnen Materialbogen in der Bearbeitungsstation möglich. Des Weiteren kann dadurch die Verarbeitungsgeschwindigkeit der Materialbahn oder der einzelnen Materialbogen signifikant erhöht werden.A method according to the invention for processing a material web or material sheets of paper, cardboard, plastic and the like comprises the following method steps: a) transporting the material web or a material sheet to a processing station; b) braking the material web or the material sheet before or in the processing station by means of at least one vacuum suction plate, which is run over by the material web or the material sheet, wherein the material web or the material sheet thereby braked by the means of at least one negative pressure device connected to the vacuum device vacuum generated in the transport direction becomes; c) generating an air flow acting on the web or sheet of material during overrunning of the vacuum suction plate by means of at least one device for generating an air stream disposed above the vacuum suction plate, the device for generating an air stream being connected to at least one air source; and d) switching on and / or off at least one of at least two separately connectable and / or disconnectable sections of the device for generating an air flow, which have at least one respective opening for the air outlet. Advantageously, it is reliably prevented by the method according to the invention that during braking of the material web to be processed or the material sheet to be processed before or in a processing station, wrinkling and / or bulging of the material web or the material sheet occurs. In addition, an exact and reliable positioning of the material web or the individual material sheet in the processing station is thereby possible. Furthermore, this can significantly increase the processing speed of the material web or of the individual material sheets.

In einer vorteilhaften Ausgestaltung des erfindungsgemäßen Verfahrens wird der Luftstrom fächerartig ausgebildet, derart, dass eine Breitseite des Fächers auf eine Oberfläche der Materialbahn oder des Materialbogens auftrifft. Dadurch ist vorteilhafterweise gewährleistet, dass die gesamte Breite der Materialbahn oder des Materialbogens mit dem Luftstrom beaufschlagt wird.In an advantageous embodiment of the method according to the invention the air flow is fan-shaped, such that a broad side of the fan impinges on a surface of the material web or the material sheet. This advantageously ensures that the entire width of the material web or the material sheet is acted upon by the air flow.

Weitere Vorteile, Merkmale und Einzelheiten der Erfindung ergeben sich aus der nachfolgenden Beschreibung zweier Ausführungsbeispiele sowie anhand der Zeichnungen. Die vorstehend in der Beschreibung genannten Merkmale und Merkmalskombinationen sowie die nachfolgend in der Figurenbeschreibung genannten und/oder in den Figuren alleine gezeigten Merkmale und Merkmalskombinationen sind nicht nur in der jeweils angegebenen Kombination, sondern auch in anderen Kombinationen, oder in Alleinstellung verwendbar, ohne den Rahmen der Erfindung zu verlassen.Further advantages, features and details of the invention will become apparent from the following description of two embodiments and with reference to the drawings. The features and combinations of features mentioned above in the description as well as the features and feature combinations mentioned below in the description of the figures and / or shown alone in the figures can be used not only in the respectively specified combination but also in other combinations, or in isolation, without the frame to leave the invention.

Die Figuren zeigen in:

Fig. 1
eine schematische Darstellung einer erfindungsgemäßen Vorrichtung gemäß einer ersten Ausführungsform;
Fig. 2
eine schematische Darstellung einer Vorrichtung zur Erzeugung eines Luftstroms gemäß der in Figur 1 dargestellten erfindungsgemäßen Vorrichtung;
Fig. 3
eine schematische Darstellung eines Ventils für eine Vorrichtung zur Erzeugung eines Luftstroms gemäß Fig. 2; und
Fig. 4
eine schematische Darstellung einer erfindungsgemäßen Vorrichtung gemäß einer zweiten Ausführungsform.
The figures show in:
Fig. 1
a schematic representation of a device according to the invention according to a first embodiment;
Fig. 2
a schematic representation of an apparatus for generating an air flow according to the in FIG. 1 illustrated device according to the invention;
Fig. 3
a schematic representation of a valve for a device for generating an air flow according to Fig. 2 ; and
Fig. 4
a schematic representation of a device according to the invention according to a second embodiment.

Fig. 1 zeigt eine schematische Darstellung einer erfindungsgemäßen Vorrichtung 10 zur Bearbeitung einer Materialbahn oder von Materialbogen 12 aus Papier, Karton, Kunststoff oder dergleichen gemäß einer ersten Ausführungsform. Die Vorrichtung 10 umfasst dabei eine Bearbeitungsstation 14, die in dem dargestellten Ausführungsbeispiel eine Nutzentrennvorrichtung ist. Die Vorrichtung 10 umfasst weiterhin ein Transportsystem für den Transport der in dem Ausführungsbeispiel dargestellten Bogen 12 zu der Bearbeitungsstation 14. Das Transportsystem ist nicht dargestellt. In der Bearbeitungsstation 14 ist eine Vakuumsaugplatte 16 angeordnet, wobei diese von den Materialbogen 12 überfahren wird. Die Materialbogen 12 werden dabei durch den mittels einer mit der Vakuumsaugplatte 16 verbundenen Unterdruckeinrichtung (nicht dargestellt) erzeugten Unterdrucks in Transportrichtung T abgebremst. Zur Erzeugung des Unterdrucks weist die Vakuumsaugplatte 16 eine Vielzahl von Öffnungen 38 auf, die mit der genannten Unterdruckeinrichtung verbunden sind. Fig. 1 shows a schematic representation of an apparatus 10 according to the invention for processing a material web or material sheet 12 made of paper, cardboard, plastic or the like according to a first embodiment. The device 10 in this case comprises a processing station 14, which is a Nutzentrennvorrichtung in the illustrated embodiment. The apparatus 10 further comprises a transport system for transporting the sheet 12 shown in the embodiment to the processing station 14. The transport system is not shown. In the processing station 14, a vacuum suction plate 16 is arranged, which is run over by the material sheet 12. The material sheets 12 are thereby braked by the negative pressure generated in the transport direction T by means of a vacuum device (not shown) connected to the vacuum suction plate 16. To generate the negative pressure, the vacuum suction plate 16 has a plurality of openings 38, which are connected to said negative pressure device.

Des Weiteren erkennt man, dass die Materialbogen 12 mittels einer Greif- und Transportvorrichtung 44 über eine Art Maske 52 gezogen werden, wobei die Maske 52 Ausnehmungen 42 zur Aufnahme der von den Materialbogen 12 abgetrennten Zuschnitten 46, nämlich den so genannten Nutzen aufweist. Exakt über den Ausnehmungen 42 sind Stempel 40 angeordnet, wobei die Stempel 40 an einem beweglichen Teil 30 der Bearbeitungsstation 14 angeordnet sind. Durch ein Absenken der Stempel 40 in Richtung der Materialbogen 12 werden die Nutzen 46 in die Ausnehmungen 42 zur Aufnahme der Nutzen 46 gedrückt. Nach erfolgter Bearbeitung des einzelnen Materialbogens wird das bewegliche Teil 30 der Bearbeitungsstation 14 wieder angehoben. Die Hubbewegungsrichtungen des beweglichen Teils 30 sind durch H angedeutet. Der bewegliche Teil 30 ist wiederum an einem Maschinengestell 50 der Bearbeitungsstation 14 verfahrbar angeordnet.Furthermore, it can be seen that the material sheets 12 are pulled over a type of mask 52 by means of a gripping and transport device 44, the mask 52 having recesses 42 for receiving the blanks 46 separated from the material sheets 12, namely the so-called benefit. Exactly over the recesses 42 punch 40 are arranged, wherein the punches 40 are arranged on a movable part 30 of the processing station 14. By lowering the punch 40 in the direction of the material sheet 12, the utility 46 are pressed into the recesses 42 for receiving the benefit 46. After processing of the single sheet of material, the movable part 30 of the processing station 14 is raised again. The Hubbewegungsrichtungen of the movable part 30 are indicated by H. The movable part 30 is in turn arranged to be movable on a machine frame 50 of the processing station 14.

Des Weiteren erkennt man, dass über der Vakuumsaugplatte 16 eine Vorrichtung 18 zur Erzeugung eines auf den Materialbogen 12 während dem Überfahren der Vakuumplatte 16 wirkenden Luftstroms angeordnet ist. Zur Erzeugung eines Luftstroms ist dabei die Vorrichtung 18 mit einer Luftquelle (nicht dargestellt) verbunden. Man erkennt, dass die Vorrichtung 18 kanalartig ausgebildet ist und einen Anschluss 20 für die Zuführung von Luft aufweist. Des Weiteren ist eine Vielzahl von Öffnungen 22 für den Luftaustritt ausgebildet. In den Öffnungen 22 ist jeweils ein Ventil 24 angeordnet, welches in Fig. 3 näher beschrieben ist. Man erkennt, dass die Vorrichtung 18 zur Erzeugung des Luftstroms an dem beweglichen Teil 30 der Bearbeitungsstation 14 befestigt ist. Die Befestigung kann dabei lösbar oder nicht-lösbar sein. Damit bewegt sich die Vorrichtung 18 mit dem beweglichen Teil 30 gemäß den Hubbewegungsrichtungen H. Die Funktionsweise der Vorrichtung 10 kann wie folgt beschrieben werden:Furthermore, it can be seen that above the vacuum suction plate 16 there is arranged a device 18 for producing an air flow acting on the material sheet 12 while the vacuum plate 16 is being moved over. To generate an air flow while the device 18 with an air source (not shown) is connected. It can be seen that the device 18 is channel-like and having a port 20 for the supply of air. Furthermore, a plurality of openings 22 for the air outlet is formed. In the openings 22, a valve 24 is arranged in each case, which in Fig. 3 is described in more detail. It can be seen that the device 18 for generating the air flow is attached to the movable part 30 of the processing station 14. The attachment can be solvable or non-detachable. Thus, the device 18 moves with the movable part 30 according to the Hubbewegungsrichtungen H. The operation of the device 10 can be described as follows:

Zunächst wird der Materialbogen 12 zu der Bearbeitungsstation 14 transportiert. Innerhalb der Bearbeitungsstation 14 wird dieser mittels der Vakuumsaugplatte 16 und den unmittelbar über der Vakuumsaugplatte 16 herrschenden Unterdruck abgebremst. Gleichzeitig erfolgt ein Absenken des beweglichen Teils 30 mit den Stempeln 40 der Bearbeitungsstation 14. Der durch die Vorrichtung 18 erzeugte Luftstrom wird dadurch relativ nah an die Oberfläche 28 des Materialbogens 12 überhalb der Vakuumsaugplatte 16 herangeführt. Durch den auf die Oberfläche 28 der Bearbeitungsbogen 12 wirkenden Luftstrom wird eine Faltenbildung oder ein Aufwellen des Materialbogens 12 während des Abbremsvorgangs zuverlässig verhindert. Dadurch ergibt sich eine gute Positionierbarkeit des einzelnen Materialbogens 12, der schließlich von der Greif- und Transportvorrichtung 44 in seine Bearbeitungsposition gezogen wird. Nach Abtrennen der Nutzen 46 hebt sich das bewegliche Teil 30 mit den daran angeordneten Stempeln 40 wieder an, sodass ein folgender Materialbogen 12 bearbeitet werden kann.First, the sheet of material 12 is transported to the processing station 14. Within the processing station 14, this is braked by means of the vacuum suction plate 16 and the pressure prevailing directly above the vacuum suction plate 16 negative pressure. At the same time, the movable part 30 is lowered by means of the punches 40 of the processing station 14. The air flow generated by the device 18 is thereby brought relatively close to the surface 28 of the material sheet 12 above the vacuum suction plate 16. By acting on the surface 28 of the machining sheet 12 air flow wrinkling or bulging of the sheet of material 12 is reliably prevented during the deceleration process. This results in a good positioning of the individual material sheet 12, which is finally pulled by the gripping and transport device 44 in its processing position. After removal of the benefits 46, the movable part 30 with the punches 40 arranged thereon picks up again, so that a following material sheet 12 can be processed.

In Fig. 1 ist des Weiteren dargestellt, dass die Vorrichtung 18 zur Erzeugung des Luftstroms über den Anschluss 20 und einem entsprechenden luftleitenden Verbindungsschlauch 36 mit der Luftquelle (nicht dargestellt) verbunden ist. Der von der Vorrichtung 18 erzeugte Luftstrom kann in einem Druckbereich von 0,5 bis 20 bar eingestellt werden. Auch höhere Drücke sind denkbar.In Fig. 1 is further shown that the device 18 for generating the air flow via the terminal 20 and a corresponding air-conducting connection hose 36 with the air source (not shown) is connected. The air flow generated by the device 18 can be adjusted in a pressure range of 0.5 to 20 bar. Even higher pressures are conceivable.

Fig. 2 zeigt eine schematische Darstellung der Vorrichtung 18 zur Erzeugung eines Luftstroms gemäß dem in Fig. 1 dargestellten Ausführungsbeispiel. Man erkennt, dass die Vorrichtung 18 kanalartig ausgebildet ist. Im dargestellten Ausführungsbeispiel weist die Vorrichtung 18 einen quadratischen Querschnitt auf. Fig. 2 shows a schematic representation of the device 18 for generating an air flow according to the in Fig. 1 illustrated embodiment. It can be seen that the device 18 is channel-shaped. In the illustrated embodiment, the device 18 has a square cross-section.

Andere Querschnitte sind jedoch ebenfalls möglich. An einem nicht verschlossenen Ende der Vorrichtung 18 ist der Anschluss 20 für den Anschluss des in Fig. 1 dargestellten Verbindungsschlauchs 36 zur Verbindung mit der Luftquelle angeordnet. An einer Seite der Vorrichtung 18 sind eine Vielzahl von Öffnungen 22 für den Luftaustritt angeordnet. In dem dargestellten Ausführungsbeispiel ist die Vorrichtung 18 ohne in den Öffnungen 22 angeordnete Ventile 24 dargestellt. Des Weiteren weist die Vorrichtung 18 Befestigungsvorrichtungen 48 zur Befestigung an dem beweglichen Teil 30 der Bearbeitungsstation 14 auf. Im vorliegenden Fall handelt es sich um Bohrungen, in die entsprechende Befestigungsmittel eingreifen können.Other cross sections are also possible. At an unsealed end of the device 18, the connection 20 for the connection of the in Fig. 1 shown connecting hose 36 for connection to the air source. On one side of the device 18, a plurality of openings 22 for the air outlet are arranged. In the illustrated embodiment, the device 18 is shown without valves 22 disposed in the openings 22. Furthermore, the device 18 fastening devices 48 for attachment to the movable part 30 of the processing station 14. In the present case are holes in which appropriate fasteners can intervene.

Fig. 3 zeigt eine schematische Darstellung eines Ventils 24 der in Fig. 2 dargestellten Vorrichtung 18 zur Erzeugung eines Luftstroms. Das Ventil ist dabei in einer Draufsicht auf die Luftaustrittsöffnung 26 dargestellt. Man erkennt, dass die Luftaustrittsöffnung 26 rechteckig bzw. spaltartig ausgebildet ist. Die Luftaustrittöffnungen 26 können aber auch jede andere geeignete Form aufweisen. Die Ventile 24 werden dabei in der Vorrichtung 18 zur Erzeugung des Luftstroms bzw. in den entsprechenden Luftaustrittsöffnungen 22 derart angeordnet, dass die Längsachsen von zwei nebeneinander angeordneten Ventilen 24 zueinander achsparallel verlaufen und/oder auf einer gemeinsamen Längsachse angeordnet sind. Dadurch ergibt sich ein wandartiger Luftstrom, der zudem fächerartig ausgebildet sein kann. Dabei ist die Breitseite des Fächers auf die Oberfläche 28 des Materialbogens 12 gerichtet (siehe Fig. 1). Im Inneren kann das Ventil 24 konisch ausgebildet sein. Fig. 3 shows a schematic representation of a valve 24 of in Fig. 2 illustrated device 18 for generating an air flow. The valve is shown in a plan view of the air outlet opening 26. It can be seen that the air outlet opening 26 is formed rectangular or slit-like. The air outlet openings 26 may also have any other suitable shape. The valves 24 are arranged in the device 18 for generating the air flow or in the corresponding air outlet openings 22 such that the longitudinal axes of two juxtaposed valves 24 are parallel to each other axis parallel and / or arranged on a common longitudinal axis. This results in a wall-like air flow, which may also be designed fan-shaped. In this case, the broad side of the fan is directed onto the surface 28 of the sheet of material 12 (see Fig. 1 ). Inside, the valve 24 may be conical.

Fig. 4 zeigt eine schematische Darstellung einer Vorrichtung 10 zur Bearbeitung einer Materialbahn oder von Materialbogen 12 aus Papier, Karton, Kunststoff oder dergleichen gemäß einer zweiten Ausführungsform. Dabei ist die Vorrichtung 18 zur Erzeugung eines Luftstroms wiederum an einem beweglichen Teil 30 der Bearbeitungsstation 14 angeordnet. Die Vorrichtung 18 erzeugt wiederum einen Luftstrom, der auf die Oberfläche 28 des Materialbogens 12 im Bereich der Vakuumsaugplatte 16 auftrifft. Im Gegensatz zu der in Fig. 1 dargestellten Ausführungsform der Vorrichtung 10 ist die Vorrichtung 18 zur Erzeugung des Luftstroms über den Anschluss 20 und den Verbindungsschlauch 36 mit einem Anschluss 34 einer Verteilereinrichtung 32 luftleitend verbunden. Die Verteilereinrichtung 32 weist dabei mehrere Anschlüsse 34 auf, an die der Verbindungsschlauch 36 zur Vorrichtung 18 angekoppelt werden kann. Über die Anschlüsse 34 und einen weiteren Verbindungsschlauch 36 ist die Verteilereinrichtung 32 mit einer Unterdruckeinrichtung (nicht dargestellt) verbunden. Man erkennt, dass die Verteilereinrichtung 32 ebenfalls an dem beweglichen Teil 30 der Bearbeitungsstation 14 angeordnet ist und sich somit zeit- und richtungsgleich mit der Vorrichtung 18 zur Erzeugung des Luftstroms bewegt. Fig. 4 shows a schematic representation of an apparatus 10 for processing a material web or material sheet 12 made of paper, cardboard, plastic or the like according to a second embodiment. In this case, the device 18 for generating an air flow is in turn arranged on a movable part 30 of the processing station 14. The device 18 in turn generates an air flow which impinges on the surface 28 of the material sheet 12 in the region of the vacuum suction plate 16. Unlike the in Fig. 1 illustrated embodiment of the device 10, the device 18 for generating the air flow through the port 20 and the connecting tube 36 with a Terminal 34 of a distribution device 32 air-conductively connected. The distribution device 32 in this case has a plurality of connections 34, to which the connection hose 36 can be coupled to the device 18. Via the connections 34 and a further connecting hose 36, the distributor device 32 is connected to a vacuum device (not shown). It can be seen that the distributor device 32 is likewise arranged on the movable part 30 of the processing station 14 and thus moves in the same time and in the same direction as the device 18 for generating the air flow.

Claims (14)

  1. Apparatus for processing a material web or material sheets (12) of paper, cardboard, plastic and the like, including at least one processing station (14) and at least one transport system for the transport of the web or the sheets (12) to the processing station (14), wherein at least one vacuum suction plate (16) is arranged immediately before or in the processing station (14) such that the vacuum suction plate (16) is traversed by the material web or the material sheets (12) and they are therein decelerated in transport direction (T) by the negative pressure generated by means of at least one negative pressure device connected to the vacuum suction plate (16), wherein at least one device (18) for generating an airflow acting on the material web or the material sheet (12) during traverse of the vacuum suction plate (16) is respectively arranged above the at least one vacuum suction plate (16), wherein the device (18) for generating an airflow is connected to at least one air source, characterized in that
    the device (18) for generating an airflow has at least two sections respectively separately switchable on and/or off with at least each one opening (22) for the air exit.
  2. Apparatus according to claim 1,
    characterized in that
    the device (18) for generating an airflow is formed channel- or hose-like and has at least one connection (20) for supplying air and at least one opening (22) for the air exit.
  3. Apparatus according to claim 2,
    characterized in that
    a valve (24) is disposed in the opening (22) for the air exit.
  4. Apparatus according to any one of the preceding claims,
    characterized in that
    the valve (24) has an approximately rectangular or slit-shaped air exit opening (26).
  5. Apparatus according to claim 4,
    characterized in that
    at least two valves (24) are arranged next to each other, wherein the longitudinal axes of the approximately rectangular or slit-shaped air exit openings (26) are arranged extending axially parallel to each other and/or are arranged on a longitudinal axis.
  6. Apparatus according to any one of the preceding claims,
    characterized in that
    the airflow is fan-like formed such that a broadside of the fan impinges on a surface (28) of the material web or material sheets (12).
  7. Apparatus according to any one of the preceding claims,
    characterized in that
    a longitudinal axis of the device (18) for generating an airflow extends and is formed approximately parallel to a longitudinal axis of the vacuum suction plate (16).
  8. Apparatus according to any one of the preceding claims,
    characterized in that
    a longitudinal axis of the device (18) for generating an airflow extends and is formed approximately perpendicular to the transport direction (T) of the material web or material sheets (12).
  9. Apparatus according to any one of the preceding claims,
    characterized in that
    the device (18) for generating an airflow is detachably or non-detachably arranged on a movable or non-movable part (30) of the processing station (14).
  10. Apparatus according to any one of the preceding claims,
    characterized in that
    a distributor device (32) with multiple connections (34) for at least one connecting hose (36) for air conducting connection to the device (18) for generating an airflow on the one hand and for air conducting connection to the air source on the other hand is arranged between the device (18) for generating an airflow and the air source.
  11. Apparatus according to any one of the preceding claims,
    characterized in that
    the device (18) for generating an airflow is formed adjustable in length.
  12. Apparatus according to any one of the preceding claims,
    characterized in that
    the processing station (14) is a sheet punching device, a sheet embossing device, a stamping device, a printing device, a stacking device, a device for producing usage from a material sheet, a material waste breakaway device, a delivery device or a usage separating device.
  13. Method for processing a material web or material sheets (12) of paper, cardboard, plastic and the like, including the following method steps:
    a) transporting the material web or a material sheet (12) to a processing station (14);
    b) decelerating the material web or the material sheet (12) before or in the processing station (14) by means of at least one vacuum suction plate (16), which is traversed by the material web or the material sheet (12) and therein decelerates them in transport direction by the negative pressure generated by means of at least one negative pressure device connected to the vacuum suction plate (16);
    c) generating an airflow acting on the material web or the material sheet (12) during traverse of the vacuum suction plate (16) by means of at least one device (18) for generating an airflow arranged above the vacuum suction plate (16), wherein the device (18) for generating an airflow is connected to at least one air source;
    characterized by
    d) switching on and/or off at least one of at least two sections of the device (18) for generating an airflow respectively separately switchable on and/or off, which have at least each one opening (22) for the air exit.
  14. Method according to claim 13,
    characterized in that
    the airflow is fan-like formed such that a broadside of the fan impinges on a surface (28) of the material web or the material sheet (12).
EP12192995.4A 2012-11-16 2012-11-16 Device and method for processing a web of material or sheets of material Active EP2733100B1 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
EP12192995.4A EP2733100B1 (en) 2012-11-16 2012-11-16 Device and method for processing a web of material or sheets of material
PL12192995T PL2733100T3 (en) 2012-11-16 2012-11-16 Device and method for processing a web of material or sheets of material
ES12192995.4T ES2637370T3 (en) 2012-11-16 2012-11-16 Device and method of processing a material band or material sheet

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP12192995.4A EP2733100B1 (en) 2012-11-16 2012-11-16 Device and method for processing a web of material or sheets of material

Publications (2)

Publication Number Publication Date
EP2733100A1 EP2733100A1 (en) 2014-05-21
EP2733100B1 true EP2733100B1 (en) 2017-05-24

Family

ID=47602794

Family Applications (1)

Application Number Title Priority Date Filing Date
EP12192995.4A Active EP2733100B1 (en) 2012-11-16 2012-11-16 Device and method for processing a web of material or sheets of material

Country Status (3)

Country Link
EP (1) EP2733100B1 (en)
ES (1) ES2637370T3 (en)
PL (1) PL2733100T3 (en)

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1411325A1 (en) * 1961-11-13 1969-03-20 Jagenberg Werke Ag Device for conveying and storing sheets of paper or the like.
US10058981B2 (en) * 2010-06-23 2018-08-28 Bobst Mex Sa Holding device for a sheet at a work station of a converting machine

Also Published As

Publication number Publication date
ES2637370T3 (en) 2017-10-13
PL2733100T3 (en) 2017-10-31
EP2733100A1 (en) 2014-05-21

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