EP2719508B1 - Drive device and punching machine with such a drive device - Google Patents

Drive device and punching machine with such a drive device Download PDF

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Publication number
EP2719508B1
EP2719508B1 EP13184230.4A EP13184230A EP2719508B1 EP 2719508 B1 EP2719508 B1 EP 2719508B1 EP 13184230 A EP13184230 A EP 13184230A EP 2719508 B1 EP2719508 B1 EP 2719508B1
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EP
European Patent Office
Prior art keywords
drive device
punching
drive
roller
machine
Prior art date
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EP13184230.4A
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German (de)
French (fr)
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EP2719508A1 (en
Inventor
Christian Görbing
Markus Möhringer
Sönke Siebert
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Masterwork Group Co Ltd
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Masterwork Group Co Ltd
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Publication of EP2719508A1 publication Critical patent/EP2719508A1/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
    • B26D5/00—Arrangements for operating and controlling machines or devices for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting
    • B26D5/08—Means for actuating the cutting member to effect the cut
    • B26D5/16—Cam means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26F—PERFORATING; PUNCHING; CUTTING-OUT; STAMPING-OUT; SEVERING BY MEANS OTHER THAN CUTTING
    • B26F1/00—Perforating; Punching; Cutting-out; Stamping-out; Apparatus therefor
    • B26F1/38—Cutting-out; Stamping-out
    • B26F1/40—Cutting-out; Stamping-out using a press, e.g. of the ram type

Definitions

  • the invention relates to a drive device with the preamble features of claim 1 and a Flachbettstanz- and / or embossing machine according to claim 7.
  • the cutting is referred to with closed geometric blank forms that can be circular, oval or polygonal and imaginary shapes of all kinds.
  • practices practiced in print finishing such as punching with punch, corner punching and register punching are counted to this area.
  • the punching takes place against a punching pad or against stamp, in some cases it is also shearing operations.
  • Plastic packaging materials, film material, paper, cardboard, cardboard or corrugated board are mainly punched in sheet format but also in web format. When punching but also creasing lines or blind embossing can be introduced into the benefit.
  • Such a flat bed punch is for example from the DE 30 44 083 A1 and the US 7,658,378 B2 known.
  • the two tables are equipped with cutting and scoring tools or corresponding counter tools, with which punched out of the cyclically guided between the table surface sheet benefits and at the same time pressed the necessary for clean folding grooves. In the subsequent breakout the waste is removed by machine tools. Depending on the equipment of the machine finally the punched benefits can be separated in a designatedGenerallytrenn arthritis.
  • an eccentric drive is disclosed as a lifting drive for the punching station.
  • an eccentric shaft is rotated with eccentrics located thereon and the lifting movement transmitted by means of eccentric rollers on the crucible, which then also performs a lifting movement.
  • eccentric rollers and crucibles In the contact area of eccentric rollers and crucibles, very high contact and frictional forces occur, which are counteracted by special material selection, surface treatment and lubrication.
  • a disadvantage of sheet punching machines with eccentric drive according to the prior art is the very high line force in the contact line between a respective eccentric roller and the crucible.
  • Object of the present invention is therefore to provide a drive device and a Flachbettstanz- and / or embossing machine, which at least reduce the disadvantages of the prior art and in which the power transmission between the eccentric drive and crucible is optimized.
  • the drive device for a lifting crucible, in particular the upper table, a flat bed punching and / or embossing machine for the processing of sheets or webs, in particular of paper, cardboard or plastic possesses a machine frame, a drive with a drive train and with at least one eccentric shaft.
  • the drive drives the at least one eccentric shaft via the drive train, at least one eccentric being mounted on a respective eccentric shaft for lifting the crucible.
  • the drive device has at least one roller shoe arranged in the force flow between the at least one eccentric and the crucible for transmitting a punching and / or stamping force from the at least one eccentric to the crucible.
  • the roller shoe in this case has a plurality of rolling elements guided in a cage rolling elements.
  • the punching and / or embossing force is thus guided over the plurality of rolling elements in the crucible, wherein the effective force is significantly reduced in the contact lines between a respective rolling element and the crucible compared to the solution according to the prior art.
  • the roller-shaped rolling elements are arranged in a plane next to one another in the cage.
  • roller shoe In a second embodiment of the roller shoe this is designed as a roller bearing shoe with rotating rolling elements.
  • spacers are arranged in the roller shoe between the respective rolling elements. This can prevent the rolling elements from contacting each other directly during the rolling movement on the crucible.
  • the rolling elements of the roller shoe are designed as cylindrical rollers, since cylindrical rollers are particularly suitable for the transmission of high forces.
  • the crucible has in its area of contact with the rolling elements of the at least one roller shoe a hardened surface and / or a lubricating device for the permanent provision of a lubricant. So wear in the contact area can be kept low.
  • the lubricating device can be designed for example as an oil pan.
  • the invention also relates to a flat bed punching and / or embossing machine with a drive device as described above.
  • FIG. 1 the basic structure of a sheet punching and embossing machine 100 for punching, breaking,directionalally storing sheets of paper, cardboard, plastic and the like is shown.
  • the punching and embossing machine 100 has a feeder 1, a punching station 2, a breaking station 3 and a boom 4 with storage and depaneling station, which are supported and enclosed by a common machine housing 5 and driven by a main drive 17. From one side, the so-called operator side, the processing stations 2, 3, 4 are accessible; on the opposite side, the so-called drive side, there is the drive train of the sheet punching and embossing machine 100.
  • a machine control 15 controls the processes within the punching machine 100.
  • the sheets 6 are separated by a feeder 1 from a stack 6.1 by a so-called suction head 18, fed to the sheet transport system 7 and gripped by gripper bars of a gripper carriage 8 grippers at its front edge and intermittently in the sheet transport direction B through the various stations 2, 3 and 4 the punching and embossing machine 100 pulled through.
  • the sheet transport system 7 has a plurality of gripper carriages 8, so that a plurality of sheets 6 can be processed simultaneously in the various stations 2, 3 and 4.
  • the gripper carriage 8 can be driven by a chain drive.
  • the punching station 2 consists of a lower crucible, a so-called. Subtable 9, and an upper crucible, a so-called. Obertisch 10.
  • the upper table 10 is vertically reciprocally mounted and is moved by an eccentric 200, which in the Fig. 2a and 2 B is shown in more detail.
  • the upper table 10 is provided with an upper tool 30 with punching and Rillmessern.
  • the lower table 9 is fixedly mounted in the machine frame and provided with a counter-plate 20 to the punching and Rillmessern. Alternatively, the upper table 10 fixed and the lower table 9 may be moved.
  • embossing tools in particular in the form of so-called embossing dies, are used instead of the punching and scoring tools.
  • the gripper carriage 8 transports the sheet 6 from the punching and embossing station 2 in the subsequent breaking station 3, which is equipped with breakout tools 21, 23.
  • the unwanted pieces of waste 11 are pushed out of the sheet 6 down with the help of the stripping tools 21, 23, whereby the waste pieces 11 fall into an inserted under the station car-like container 12 or be transported away from there.
  • the boom 4 may also include a pallet 13, on which the individual sheets 6 or benefits in the form of a stack 14 are stacked, so that after reaching a certain stack height, the pallet 13 with the Sheet pile 14 off the area of the punching and embossing machine 100 can be moved away. In order not to have to stop the machine 100 during the stack exchange, auxiliary stacking devices can be used.
  • FIGS. 2a and 2 B show in various sectional views of the drive 200 of the upper table 10 of the punching station 2 of a punching machine 100 in detail: Shown is one of usually two mutually parallel eccentric shafts 211, which carries two eccentric 215 each. A respective eccentric shaft 211 is connected via a drive flange 225 and a clutch 226 with a drive train, not shown, and learns about a rotational movement r. A respective eccentric shaft can be made in one piece and be mounted in the machine position 5 by means of at least two, but preferably four divisible rolling bearings 213, 214.
  • the clutch 226 to the drive train can be used as a torsionally rigid flexible coupling, z. Example, as a spring bar coupling, be executed, so that slight differences in height between drive flange 225 and drive train can be easily compensated.
  • the rotational movement r of the eccentric shaft 211 is converted by the eccentrics 215 into a stroke movement h of the eccentric bearings 212.
  • This lifting movement h is transmitted via the roller shoe 218 to the crucible 10 and causes a punching force F S.
  • the crucible 10 has on its surface two according to double arrow e slidable wedges 216, 217 for adjusting the punching force F S.
  • a roller shoe 218 is arranged, which on the one hand transmits the lifting movement h via the wedges 216, 217 to the crucible 10 and thereby carries out a rolling movement w on the surface 222 of the upper adjusting wedge 216.
  • the roller shoe 218 has a plurality of rolling elements 219, which are guided in a Wälz Eisenmaschinefig 220 and between which spacers 221 are arranged. If the rolling elements 219 are designed as cylindrical rollers, there is a plurality of contact lines between the cylindrical rollers and the surface 222, in which the power transmission takes place. For a low-maintenance and durable solution, the surface 222 of the adjusting wedge 216 should be hardened and a lubricating device should be provided in this area.

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  • Life Sciences & Earth Sciences (AREA)
  • Forests & Forestry (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Machines For Manufacturing Corrugated Board In Mechanical Paper-Making Processes (AREA)
  • Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)
  • Making Paper Articles (AREA)
  • Control Of Cutting Processes (AREA)

Description

Die Erfindung betrifft eine Antriebsvorrichtung mit den oberbegrifflichen Merkmalen von Anspruch 1 und eine Flachbettstanz- und / oder -prägemaschine gemäß Anspruch 7.The invention relates to a drive device with the preamble features of claim 1 and a Flachbettstanz- and / or embossing machine according to claim 7.

Stand der TechnikState of the art

Als Stanzen wird das Schneiden mit in sich geschlossenen geometrischen Zuschnittsformen bezeichnet, die kreisförmig, oval oder mehreckig sowie Phantasieformen aller Art sein können. Auch die in der Druckweiterverarbeitung geübten Praktiken, wie Stanzen mit Locheisen, Eckenabstoßen und Registerstanzen werden zu diesem Bereich gezählt. Die Stanzung erfolgt gegen eine Stanzunterlage oder gegen Stempel, teilweise sind es auch Schervorgänge. Verpackungsmaterialien aus Kunststoff, Folienmaterial, Papier, Karton, Pappe oder Wellpappe werden hauptsächlich im Bogenformat, aber auch im Bahnformat gestanzt. Beim Stanzvorgang können zusätzlich aber auch Rilllinien oder Blindprägungen in den Nutzen eingebracht werden. Da es sich bei den Endprodukten um anspruchsvolle Verpackungen hinsichtlich technischer und graphischer Ausführung handelt (etwa Verpackungen für Kosmetik, Zigaretten, Pharmazie, Lebensmittel, etc.), werden besondere Anforderungen nicht nur an die Verpackungsmaterialien selbst gestellt, sondern es sind für optimale Resultate auch Stanzwerkzeuge mit geringsten Toleranzen und äußerst präzise und zuverlässig arbeitende Stanzmaschinen erforderlich. Diesen Ansprüchen wird das Flachbettstanzen am besten gerecht. Dabei werden im Falle der Bogenbearbeitung die gedruckten und auf einer Palette gestapelten Bogen der Stanzmaschine zugeführt. In der Maschine werden in einer Ausrichteinrichtung die zu stanzenden Bogen passgenau ausgerichtet, von einem Greiferwagen übernommen und exakt in der Stanzeinrichtung zwischen einem fest gelagerten Untertisch und einem über einen Kniehebel oder Exzentergetriebe vertikal bewegbaren Obertisch positioniert. Auch bekannt sind Maschinen, in welchen der Untertisch gegen einen festen Obertisch bewegt wird.As punching the cutting is referred to with closed geometric blank forms that can be circular, oval or polygonal and imaginary shapes of all kinds. Also the practices practiced in print finishing, such as punching with punch, corner punching and register punching are counted to this area. The punching takes place against a punching pad or against stamp, in some cases it is also shearing operations. Plastic packaging materials, film material, paper, cardboard, cardboard or corrugated board are mainly punched in sheet format but also in web format. When punching but also creasing lines or blind embossing can be introduced into the benefit. Since the end products are sophisticated packaging in terms of technical and graphic design (such as packaging for cosmetics, cigarettes, pharmacy, food, etc.), special requirements are not only placed on the packaging materials themselves, but are also punching tools for optimum results required with the smallest tolerances and extremely precise and reliable punching machines. Flatbed punching best meets these demands. In this case, in the case of sheet processing, the printed sheets stacked on a pallet are fed to the punching machine. In the machine, the sheets to be punched are precisely aligned in an alignment device, taken over by a gripper carriage and positioned exactly in the punching device between a fixed undercounter and a vertical over a knee lever or eccentric upper table. Also known are machines in which the undercounter is moved against a fixed upper table.

In bekannten Bogenstanz- und Prägemaschinen, die zum Stanzen, Prägen, Ausbrechen, ggfs. Nutzentrennen und Ablegen von Bogen aus Papier, Pappe und der gleichen eingesetzt werden, ist es bekannt die Bogen mittels Greiferwagen durch die einzelnen Stationen der Maschine zu bewegen. Ein jeweiliger Greiferwagen besitzt eine Greiferbrücke, an der Greifer befestigt sind, die die Bogen an einem vorderen Ende ergreifen. Ein Greiferwagen besitzt weiterhin seitliche Fahrwagen, welche mit endlosen Ketten des Transportsystems verbunden sind und wodurch die Greiferwagen durch die Maschine bewegt werden. Durch diese Art der Bewegung der Bogen durch die Maschine wird eine hohe Maschinenleistung ermöglicht, da die Bogen in den einzelnen hintereinander angeordneten Stationen der Maschine, insbesondere Stanz-, Ausbrech- und Nutzentrennstation (cutting - stripping - blanking), nacheinander bearbeitet werden.In known sheet punching and embossing machines that are used for punching, embossing, breaking, if necessary. Nutzentrennen and storing sheets of paper, cardboard and the same, it is known to move the sheet by means of gripper carriage through the individual stations of the machine. A respective gripper carriage has a gripper bridge, are attached to the gripper, which grip the bow at a front end. A gripper carriage further has lateral carriages, which are connected to endless chains of the transport system and whereby the gripper carriage to be moved by the machine. By this type of movement of the sheet through the machine, a high machine performance is possible because the sheets in the individual successively arranged stations of the machine, in particular punching, breaking and blanking station (cutting - stripping - blanking), are processed one after the other.

Eine derartige Flachbettstanze ist beispielsweise aus der DE 30 44 083 A1 und der US 7,658,378 B2 bekannt. Die beiden Tische sind mit Schneid- und Rillwerkzeugen bzw. entsprechenden Gegenwerkzeugen bestückt, mit denen aus dem taktweise zwischen die Tischfläche geführten Bogen die Nutzen ausgestanzt und gleichzeitig die zum sauberen Falten notwendigen Rillen eingedrückt werden. In der nachfolgenden Ausbrecheinrichtung wird der Abfall über Ausbrechwerkzeuge maschinell entfernt. Je nach Ausstattung der Maschine können schließlich die gestanzten Nutzen in einer hierfür vorgesehenen Nutzentrenneinrichtung separiert werden. In Fig. 2 der DE 30 44 083 A1 und der zugehörigen Beschreibung ist ein Exzenterantrieb als Hubantrieb für die Stanzstation offenbart. Bei einem derartigen Antrieb wird eine Exzenterwelle mit sich darauf befindlichen Exzentern rotiert und die Hubbewegung mittels Exzenterrollen auf den Tiegel übertragen, welcher dann ebenfalls eine Hubbewegung ausführt.
Im Kontaktbereich von Exzenterrollen und Tiegel treten sehr hohe Kontakt- und Reibungskräfte auf, welchen durch spezielle Materialauswahl, Oberflächenbehandlung und Schmierung begegnet wird.Such a flat bed punch is for example from the DE 30 44 083 A1 and the US 7,658,378 B2 known. The two tables are equipped with cutting and scoring tools or corresponding counter tools, with which punched out of the cyclically guided between the table surface sheet benefits and at the same time pressed the necessary for clean folding grooves. In the subsequent breakout the waste is removed by machine tools. Depending on the equipment of the machine finally the punched benefits can be separated in a designated Nutzentrenneinrichtung. In Fig. 2 the DE 30 44 083 A1 and the associated description an eccentric drive is disclosed as a lifting drive for the punching station. In such a drive, an eccentric shaft is rotated with eccentrics located thereon and the lifting movement transmitted by means of eccentric rollers on the crucible, which then also performs a lifting movement.
In the contact area of eccentric rollers and crucibles, very high contact and frictional forces occur, which are counteracted by special material selection, surface treatment and lubrication.

Nachteilig bei Bogenstanzmaschinen mit Exzenterantrieb gemäß dem Stand der Technik ist die sehr hohe Linienkraft in der Kontaktlinie zwischen einer jeweiligen Exzenterrolle und dem Tiegel.A disadvantage of sheet punching machines with eccentric drive according to the prior art is the very high line force in the contact line between a respective eccentric roller and the crucible.

Aufgabenstellungtask

Aufgabe der vorliegenden Erfindung ist es daher, eine Antriebsvorrichtung und eine Flachbettstanz- und / oder -prägemaschine zu schaffen, welche die Nachteile des Standes der Technik zumindest reduzieren und bei welchen die Kraftübertragung zwischen Exzenterantrieb und Tiegel optimiert ist.Object of the present invention is therefore to provide a drive device and a Flachbettstanz- and / or embossing machine, which at least reduce the disadvantages of the prior art and in which the power transmission between the eccentric drive and crucible is optimized.

Gelöst wird diese Aufgabe durch eine Antriebsvorrichtung mit den Merkmalen von Anspruch 1. Die erfindungsgemäße Antriebsvorrichtung für einen hubbewegten Tiegel, insbesondere den Obertisch, einer Flachbettstanz- und / oder -prägemaschine für die Bearbeitung von Bogen oder Bahnen, insbesondere aus Papier, Karton oder Kunststoff besitzt ein Maschinengestell, einen Antrieb mit einem Antriebsstrang und mit mindestens einer Exzenterwelle. Der Antrieb treibt dabei über den Antriebsstrang die mindestens eine Exzenterwelle an, wobei auf einer jeweiligen Exzenterwelle mindestens ein Exzenter angebracht ist, zum Hubbewegen des Tiegels. Erfindungsgemäß besitzt die Antriebsvorrichtung mindestens einen im Kraftfluss zwischen dem mindestens einen Exzenter und dem Tiegel angeordneten Rollenschuh zur Übertragung einer Stanz- und / oder -prägekraft von dem mindestens einen Exzenter auf den Tiegel. Der Rollenschuh weist dabei eine Mehrzahl von rollenförmig in einem Käfig geführten Wälzkörpern auf. In vorteilhafter Weise wird so die Stanz- und / oder Prägekraft über die Mehrzahl von Wälzkörpern in den Tiegel geführt, wobei die wirksame Kraft in den Kontaktlinien zwischen einem jeweiligen Wälzkörper und dem Tiegel im Vergleich zur Lösung gemäß dem Stand der Technik deutlich reduziert ist.This object is achieved by a drive device with the features of claim 1. The drive device according to the invention for a lifting crucible, in particular the upper table, a flat bed punching and / or embossing machine for the processing of sheets or webs, in particular of paper, cardboard or plastic possesses a machine frame, a drive with a drive train and with at least one eccentric shaft. The drive drives the at least one eccentric shaft via the drive train, at least one eccentric being mounted on a respective eccentric shaft for lifting the crucible. According to the invention, the drive device has at least one roller shoe arranged in the force flow between the at least one eccentric and the crucible for transmitting a punching and / or stamping force from the at least one eccentric to the crucible. The roller shoe in this case has a plurality of rolling elements guided in a cage rolling elements. Advantageously, the punching and / or embossing force is thus guided over the plurality of rolling elements in the crucible, wherein the effective force is significantly reduced in the contact lines between a respective rolling element and the crucible compared to the solution according to the prior art.

Dies hat die folgenden Vorteile:

  • Die Last kann auf eine größere Zahl von Wälzkörpern verteilt werden.
  • Es besteht eine geringere Schlupfneigung und damit eine geringere Verschleißneigung im Kontakt bei halben Hub, wegen geringerer bewegter Masse
  • Die Antriebsvorrichtung weist günstigere Fertigungskosten auf.
  • Es ist ein geringerer Bauraum erforderlich, sodass eine kompaktere Bauweise ermöglicht wird.
This has the following advantages:
  • The load can be distributed to a larger number of rolling elements.
  • There is a lower tendency to slip and thus a lower tendency to wear in contact at half stroke, because of lower moving mass
  • The drive device has lower production costs.
  • There is a smaller space required, so a more compact design is possible.

In einer ersten Ausführungsvariante des Rollenschuhs sind die rollenförmigen Wälzkörper in einer Ebene nebeneinander in dem Käfig angeordnet.In a first embodiment of the roller shoe, the roller-shaped rolling elements are arranged in a plane next to one another in the cage.

In einer zweiten Ausführungsvariante des Rollenschuhs ist dieser als Rollenumlaufschuh mit umlaufenden Wälzkörpern ausgeführt.In a second embodiment of the roller shoe this is designed as a roller bearing shoe with rotating rolling elements.

In vorteilhafter Weiterbildung der erfindungsgemäßen Antriebsvorrichtung sind in den Rollenschuh zwischen den jeweiligen Wälzkörpern Distanzstücke angeordnet. Dadurch kann verhindert werden, dass sich die Wälzkörper während der Abwälzbewegung auf dem Tiegel direkt miteinander kontaktieren.In an advantageous embodiment of the drive device according to the invention spacers are arranged in the roller shoe between the respective rolling elements. This can prevent the rolling elements from contacting each other directly during the rolling movement on the crucible.

In einer besonders vorteilhaften und daher bevorzugten Weiterbildung der erfindungsgemäßen Antriebsvorrichtung sind die Wälzkörper des Rollenschuhs als Zylinderrollen ausgeführt, da Zylinderrollen besonders für die Übertragung von hohen Kräften geeignet sind.In a particularly advantageous and therefore preferred embodiment of the drive device according to the invention, the rolling elements of the roller shoe are designed as cylindrical rollers, since cylindrical rollers are particularly suitable for the transmission of high forces.

In einer vorteilhaften Weiterbildung der erfindungsgemäßen Antriebsvorrichtung besitzt der Tiegel in seinem Kontaktbereich mit den Wälzkörpern des mindestens einen Rollenschuhs eine gehärtete Oberfläche und / oder eine Schmiereinrichtung zum permanenten Bereitstellen eines Schmiermittels. So kann Verschleiß im Kontaktbereich gering gehalten werden. Die Schmiereinrichtung kann beispielsweise als Ölwanne ausgeführt sein.In an advantageous development of the drive device according to the invention, the crucible has in its area of contact with the rolling elements of the at least one roller shoe a hardened surface and / or a lubricating device for the permanent provision of a lubricant. So wear in the contact area can be kept low. The lubricating device can be designed for example as an oil pan.

Die Erfindung betrifft auch eine Flachbettstanz- und / oder -prägemaschine mit einer wie oben stehend beschriebenen Antriebsvorrichtung.The invention also relates to a flat bed punching and / or embossing machine with a drive device as described above.

Die beschriebene Erfindung und die beschriebenen vorteilhaften Weiterbildungen der Erfindung stellen auch in beliebiger Kombination miteinander vorteilhafte Weiterbildungen der Erfindung dar.The described invention and the described advantageous developments of the invention are also in any combination with each other advantageous developments of the invention.

Hinsichtlich weiterer Vorteile und in konstruktiver und funktioneller Hinsicht vorteilhafter Ausgestaltungen der Erfindung wird auf die Unteransprüche sowie die Beschreibung von Ausführungsbeispielen unter Bezugnahme auf die beiliegenden Zeichnungen verwiesen.With regard to further advantages and constructive and functional aspects of advantageous embodiments of the invention, reference is made to the dependent claims and the description of embodiments with reference to the accompanying drawings.

Ausführungsbeispielembodiment

Die Erfindung soll an Hand bevorzugter Ausführungsbeispiele noch näher erläutert werden. Es zeigen in schematischer Darstellung

Figur 1
eine erfindungsgemäße Stanzmaschine
Figur 2a
eine erste Schnittdarstellung durch den Antrieb des Obertischs in einer Richtung senkrecht zur Exzenterwelle
Figur 2b
eine zweite Schnittdarstellung durch den Antrieb des Obertischs durch die Exzenterwelle
The invention will be explained in more detail with reference to preferred embodiments. It show in a schematic representation
FIG. 1
a punching machine according to the invention
FIG. 2a
a first sectional view through the drive of the upper table in a direction perpendicular to the eccentric shaft
FIG. 2b
a second sectional view through the drive of the upper table by the eccentric shaft

Einander entsprechende Elemente und Bauteile sind in den Figuren mit gleichen Bezugszeichen versehen.Corresponding elements and components are provided in the figures with the same reference numerals.

In Figur 1 ist der prinzipielle Aufbau einer Bogenstanz- und -prägemaschine 100 zum Stanzen, Ausbrechen, Nutzentrennen und Ablegen von Bogen aus Papier, Pappe, Kunststoff und dergleichen dargestellt. Die Stanz- und Prägemaschine 100 besitzt einen Anleger 1, eine Stanzstation 2, eine Ausbrechstation 3 und einen Ausleger 4 mit Ablage- und Nutzentrennstation, die von einem gemeinsamen Maschinengehäuse 5 getragen und umschlossen werden und von einem Hauptantrieb 17 angetrieben werden. Von einer Seite, der sogenannten Bedienerseite, sind die Bearbeitungsstationen 2, 3, 4 zugänglich; auf der gegenüberliegenden Seite, der sogenannten Antriebsseite, befindet sich der Antriebsstrang der Bogenstanz- und -prägemaschine 100. Eine Maschinensteuerung 15 steuert die Abläufe innerhalb der Stanzmaschine 100.In FIG. 1 the basic structure of a sheet punching and embossing machine 100 for punching, breaking, Nutzentrennen and storing sheets of paper, cardboard, plastic and the like is shown. The punching and embossing machine 100 has a feeder 1, a punching station 2, a breaking station 3 and a boom 4 with storage and depaneling station, which are supported and enclosed by a common machine housing 5 and driven by a main drive 17. From one side, the so-called operator side, the processing stations 2, 3, 4 are accessible; on the opposite side, the so-called drive side, there is the drive train of the sheet punching and embossing machine 100. A machine control 15 controls the processes within the punching machine 100.

Die Bogen 6 werden durch einen Anleger 1 von einem Stapel 6.1 durch einen sogenannten Saugkopf 18 vereinzelt, dem Bogentransportsystem 7 zugeführt und von an Greiferbrücken eines Greiferwagens 8 befestigten Greifern an ihrer Vorderkante ergriffen und in Bogentransportrichtung B intermittierend durch die verschiedenen Stationen 2, 3 und 4 der Stanz- und Prägemaschine 100 hindurchgezogen.
Das Bogentransportsystem 7 besitzt mehrere Greiferwagen 8, sodass mehrere Bogen 6 gleichzeitig in den verschiedenen Stationen 2, 3 und 4 bearbeitet werden können. Die Greiferwagen 8 können von einem Kettenantrieb angetrieben werden.The sheets 6 are separated by a feeder 1 from a stack 6.1 by a so-called suction head 18, fed to the sheet transport system 7 and gripped by gripper bars of a gripper carriage 8 grippers at its front edge and intermittently in the sheet transport direction B through the various stations 2, 3 and 4 the punching and embossing machine 100 pulled through.
The sheet transport system 7 has a plurality of gripper carriages 8, so that a plurality of sheets 6 can be processed simultaneously in the various stations 2, 3 and 4. The gripper carriage 8 can be driven by a chain drive.

Die Stanzstation 2 besteht aus einem unteren Tiegel, einem sog. Untertisch 9, und einem oberen Tiegel, einem sog. Obertisch 10. Der Obertisch 10 ist vertikal hin- und herbewegbar gelagert und wird von einem Exzenterantrieb 200 hubbewegt, welcher in den Fig. 2a und 2b näher dargestellt ist. Der Obertisch 10 ist mit einem Oberwerkzeug 30 mit Stanz- und Rillmessern versehen. Der Untertisch 9 ist fest im Maschinengestell gelagert und mit einer Gegenplatte 20 zu den Stanz- und Rillmessern versehen. Alternativ kann auch der Obertisch 10 feststehend und der Untertisch 9 bewegt sein. Beim Prägen kommen an Stelle der Stanz- und Rillwerkzeuge Prägewerkzeuge, insbesondere in Form sogenannter Prägeklischees, zum Einsatz.The punching station 2 consists of a lower crucible, a so-called. Subtable 9, and an upper crucible, a so-called. Obertisch 10. The upper table 10 is vertically reciprocally mounted and is moved by an eccentric 200, which in the Fig. 2a and 2 B is shown in more detail. The upper table 10 is provided with an upper tool 30 with punching and Rillmessern. The lower table 9 is fixedly mounted in the machine frame and provided with a counter-plate 20 to the punching and Rillmessern. Alternatively, the upper table 10 fixed and the lower table 9 may be moved. In embossing, embossing tools, in particular in the form of so-called embossing dies, are used instead of the punching and scoring tools.

Der Greiferwagen 8 transportiert den Bogen 6 von der Stanz- und Prägestation 2 in die nachfolgende Ausbrechstation 3, die mit Ausbrechwerkzeugen 21, 23 ausgestattet ist. In der Ausbrechstation 3 werden mit Hilfe der Ausbrechwerkzeuge 21, 23 die nicht benötigten Abfallstücke 11 aus dem Bogen 6 nach unten herausgestoßen, wodurch die Abfallstücke 11 in einen unter der Station eingeschobenen wagenartigen Behälter 12 fallen oder von dort aus abtransportiert werden.The gripper carriage 8 transports the sheet 6 from the punching and embossing station 2 in the subsequent breaking station 3, which is equipped with breakout tools 21, 23. In the stripping station 3, the unwanted pieces of waste 11 are pushed out of the sheet 6 down with the help of the stripping tools 21, 23, whereby the waste pieces 11 fall into an inserted under the station car-like container 12 or be transported away from there.

Von der Ausbrechstation 3 gelangt der Bogen 6 in den Ausleger 4, wo der Bogen 6 entweder nur einfach abgelegt wird, oder aber gleichzeitig eine Trennung der einzelnen Nutzen eines jeweiligen Bogens 6 erfolgt. Dazu besitzt der Ausleger 4 ein Nutzentrennwerkzeug 21, 23. Der Ausleger 4 kann auch eine Palette 13 enthalten, auf der die einzelnen Bogen 6 bzw. Nutzen in Form eines Stapels 14 aufgestapelt werden, so dass nach Erreichen einer bestimmten Stapelhöhe die Palette 13 mit dem Bogenstapel 14 aus dem Bereich der Stanz- und Prägemaschine 100 weggefahren werden kann. Um die Maschine 100 während des Stapeltausches nicht anhalten zu müssen können Hilfsstapeleinrichtungen zum Einsatz kommen.From the breaking station 3, the sheet 6 enters the boom 4, where the sheet 6 is either simply stored, or at the same time there is a separation of the individual benefits of each sheet 6. The boom 4 may also include a pallet 13, on which the individual sheets 6 or benefits in the form of a stack 14 are stacked, so that after reaching a certain stack height, the pallet 13 with the Sheet pile 14 off the area of the punching and embossing machine 100 can be moved away. In order not to have to stop the machine 100 during the stack exchange, auxiliary stacking devices can be used.

Die Figuren 2a und 2b zeigen in verschiedenen Schnittdarstellungen den Antrieb 200 des Obertischs 10 der Stanzstation 2 einer Stanzmaschine 100 im Detail:
Dargestellt ist eine von in der Regel zwei parallel zueinander angeordneten Exzenterwellen 211, welche jeweils zwei Exzenter 215 trägt. Eine jeweilige Exzenterwelle 211 ist über einen Antriebsflansch 225 und eine Kupplung 226 mit einem nicht dargestellten Antriebsstrang verbunden und erfährt darüber eine Rotationsbewegung r. Eine jeweilige Exzenterwelle kann einteilig ausgeführt sein und mittels mindestens zwei, bevorzugt jedoch vier teilbaren Wälzlagern 213, 214 in dem Maschinengestellt 5 gelagert sein. Die Kupplung 226 zum Antriebsstrang kann als torsionsstabile biegeweiche Kupplung, z. B. als Federstegkupplung, ausgeführt sein, so dass geringe Höhenunterschiede zwischen Antriebsflansch 225 und Antriebsstrang einfach ausgeglichen werden können.The FIGS. 2a and 2 B show in various sectional views of the drive 200 of the upper table 10 of the punching station 2 of a punching machine 100 in detail:
Shown is one of usually two mutually parallel eccentric shafts 211, which carries two eccentric 215 each. A respective eccentric shaft 211 is connected via a drive flange 225 and a clutch 226 with a drive train, not shown, and learns about a rotational movement r. A respective eccentric shaft can be made in one piece and be mounted in the machine position 5 by means of at least two, but preferably four divisible rolling bearings 213, 214. The clutch 226 to the drive train can be used as a torsionally rigid flexible coupling, z. Example, as a spring bar coupling, be executed, so that slight differences in height between drive flange 225 and drive train can be easily compensated.

Die Rotationsbewegung r der Exzenterwelle 211 wird von den Exzentern 215 in eine Hubbewegung h der Exzenterlager 212 gewandelt. Diese Hubbewegung h wird über den Rollenschuh 218 auf den Tiegel 10 übertragen und bewirkt eine Stanzkraft FS. Der Tiegel 10 besitzt an seiner Oberfläche zwei gemäß Doppelpfeil e verschiebbare Keile 216, 217 zur Einstellung der Stanzkraft FS. Zwischen dem Exzenterlager 212 und dem oberen Keil 216 ist ein Rollenschuh 218 angeordnet, welcher zum einen die Hubbewegung h über die Keile 216, 217 auf den Tiegel 10 überträgt und dabei eine Abwälzbewegung w auf der Oberfläche 222 des oberen Einstellkeils 216 ausführt. Der Rollenschuh 218 besitzt eine Mehrzahl von Wälzkörpern 219, welche in einem Wälzkörperkäfig 220 geführt werden und zwischen welchen Distanzstücke 221 angeordnet sind. Wenn die Wälzkörper 219 als Zylinderrollen ausgeführt sind, so besteht zwischen den Zylinderrollen und der Oberfläche 222 eine Mehrzahl von Kontaktlinien, in welchen die Kraftübertragung erfolgt. Für eine wartungsarme und dauerfeste Lösung sollte die Oberfläche 222 des Einstellkeils 216 gehärtet und sollte in diesem Bereich eine Schmiereinrichtung vorgesehen sein.The rotational movement r of the eccentric shaft 211 is converted by the eccentrics 215 into a stroke movement h of the eccentric bearings 212. This lifting movement h is transmitted via the roller shoe 218 to the crucible 10 and causes a punching force F S. The crucible 10 has on its surface two according to double arrow e slidable wedges 216, 217 for adjusting the punching force F S. Between the eccentric bearing 212 and the upper wedge 216, a roller shoe 218 is arranged, which on the one hand transmits the lifting movement h via the wedges 216, 217 to the crucible 10 and thereby carries out a rolling movement w on the surface 222 of the upper adjusting wedge 216. The roller shoe 218 has a plurality of rolling elements 219, which are guided in a Wälzkörperkäfig 220 and between which spacers 221 are arranged. If the rolling elements 219 are designed as cylindrical rollers, there is a plurality of contact lines between the cylindrical rollers and the surface 222, in which the power transmission takes place. For a low-maintenance and durable solution, the surface 222 of the adjusting wedge 216 should be hardened and a lubricating device should be provided in this area.

BezugszeichenlisteLIST OF REFERENCE NUMBERS

11
Anlegerinvestor
22
Stanz- und/oder PrägestationPunching and / or embossing station
33
Ausbrechstationstripping
44
Ausleger, ggfs. mit NutzentrennstationOutrigger, if necessary with Nutzentrennstation
55
Maschinengehäusemachine housing
66
Bogenarc
6.16.1
Bogenstapelsheet pile
77
BogentransportsystemSheet transport system
88th
Greiferwagen mit GreifernGripper carriage with grippers
99
Untertisch / unterer TiegelLower table / lower crucible
1010
Obertisch / oberer TiegelUpper table / upper crucible
1111
Abfallstücketrimmings
1212
Behältercontainer
1313
Palettepalette
1414
Auslagestapeldelivery pile
1515
Steuerung mit Interface und EingabegerätenControl with interface and input devices
1616
Zuführtisch mit einer Einheit zum Ausrichten der BogenFeed table with a unit for aligning the bow
1717
Hauptantriebmain drive
1818
Saugkopfsuction head
2020
Unterwerkzeuglower tool
2121
Oberwerkzeug mit StempelnUpper tool with punches
2323
Nutzentrenngitter oder Ausbrechbrett (Unterwerkzeug)Dividing grille or stripping board (lower tool)
3030
Oberwerkzeug (Stanzwerkzeug)Upper tool (punching tool)
100100
Flachbett-Bogenstanz- und/oder -prägemaschine (Stanzmaschine)Flatbed sheet punching and / or embossing machine (punching machine)
200200
Antrieb ObertischDrive upper table
211211
Exzenterwelleeccentric shaft
212212
Exzenterlagereccentric
213213
Stützlagersupport bearings
214214
Wälzlager mit Wälzkörpern und WälzkörperkäfigenRolling bearings with rolling elements and Wälzkörperkäfigen
215215
Exzentereccentric
216216
Einstellkeil StanzkraftAdjustment wedge punching force
217217
Einstellkeil StanzkraftAdjustment wedge punching force
218218
Rollenschuhroller shoes
219219
Wälzkörperrolling elements
220220
WälzkörperkäfigRolling Element
221221
Distanzstückspacer
222222
Gehärtete OberflächeHardened surface
223223
Anlaufplattestartup disk
225225
Antriebsflanschdrive flange
226226
Kupplung AntriebsstrangClutch drive train
ee
Verstellbewegung zur Einstellung der StanzkraftAdjustment movement for setting the punching force
hH
Hubbewegungstroke movement
rr
Rotationsbewegungrotational motion
ww
Wälzbewegungrolling motion
BB
BogentransportrichtungSheet transport direction
Ee
BogentransportebeneSheet transport plane
FS F S
Stanzkraftpunching force

Claims (8)

  1. A drive device (200) for a stroke movement platen (10), in particular for the upper platen, of a flatbed punching machine and/or flatbed embossing machine (100), comprising a machine frame (5), a drive (200) having a drive train and having at least one eccentric shaft (211), wherein the drive (200) drives (r) the at least one eccentric shaft (211) via the drive train and wherein at least one eccentric (215) is mounted on a respective eccentric shaft (211) to allow a stroke movement (h) of the platen (10), characterized in that
    the drive device (200) has at least one roller seat (218) arranged in a force flow between the at least one eccentric (215) and the platen (10) for transmitting a punching force and/or embossing force (Fs) from the at least one eccentric (215) to the platen (10), the roller seat (218) comprising a plurality of roller-shaped rolling bodies (219) guided in a retainer (220).
  2. A drive device according to claim 1,
    characterized in that
    the roller-shaped rolling bodies (219) are arranged in a plane side by side in the retainer (220).
  3. A drive device according to claim 1,
    characterized in that the roller seat (218) is designed as a rotating roller seat comprising rotating roller bodies (219).
  4. A drive device according to any one of the preceding claims,
    characterized in that
    spacers (221) are arranged between the roller bodies (219).
  5. A drive device according to any one of the preceding claims,
    characterized in that
    the roller bodies (219) are designed as cylindrical rollers.
  6. A drive device according to any one of the preceding claims,
    characterized in that
    the platen (10) comprises a tempered surface (222) at its contact portion with the roller bodies (219) of the at least one roller seat (218) and/or a lubricating device for permanently providing a lubricant.
  7. A drive device according to any one of the preceding claims,
    characterized in that
    a respective eccentric shaft (211) is constructed in one piece and is mounted in the machine frame (5) by means of at least two separable roller bearings (214).
  8. A flatbed punching machine and/or flatbed embossing machine (100) comprising a drive device (200) according to any one of the preceding claims.
EP13184230.4A 2012-10-12 2013-09-13 Drive device and punching machine with such a drive device Active EP2719508B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102012019991.0A DE102012019991A1 (en) 2012-10-12 2012-10-12 Drive device and punching machine with such a drive device

Publications (2)

Publication Number Publication Date
EP2719508A1 EP2719508A1 (en) 2014-04-16
EP2719508B1 true EP2719508B1 (en) 2019-07-10

Family

ID=49209237

Family Applications (1)

Application Number Title Priority Date Filing Date
EP13184230.4A Active EP2719508B1 (en) 2012-10-12 2013-09-13 Drive device and punching machine with such a drive device

Country Status (3)

Country Link
EP (1) EP2719508B1 (en)
CN (1) CN103722588B (en)
DE (1) DE102012019991A1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102014105597B3 (en) 2014-04-17 2015-02-19 Rheinmetall Landsysteme Gmbh Carriage for a weapon or machine weapon
CN116852456B (en) * 2023-09-04 2023-11-07 山东利华同辉光电科技有限公司 Die cutting machine

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3044083A1 (en) * 1980-11-24 1982-09-09 Wupa-Maschinenfabrik GmbH, 4057 Brüggen PUNCHING DEVICE

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4403079C1 (en) * 1994-02-02 1995-04-06 Hemscheidt Maschtech Schwerin Mould-closing device for plastics injection-moulding machines for receiving large and heavy moulds
DE102007002154A1 (en) * 2007-01-15 2008-07-17 Heidelberger Druckmaschinen Ag Apparatus and method for aligning sheet stacks
DE102007012638A1 (en) * 2007-03-16 2008-09-18 Heidelberger Druckmaschinen Ag Sheet punching and embossing machine
DE102008008438A1 (en) * 2008-02-11 2009-08-13 Continental Automotive Gmbh High-pressure pump has tappet, which serves for indirect support of piston with longitudinal axis at drive shaft over roller, which is pivotally coupled with tappet
DE102011086703A1 (en) * 2011-11-21 2013-05-23 Robert Bosch Gmbh high pressure pump

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3044083A1 (en) * 1980-11-24 1982-09-09 Wupa-Maschinenfabrik GmbH, 4057 Brüggen PUNCHING DEVICE

Also Published As

Publication number Publication date
DE102012019991A1 (en) 2014-04-17
CN103722588B (en) 2017-09-22
EP2719508A1 (en) 2014-04-16
CN103722588A (en) 2014-04-16

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