EP2093176A2 - Sheet braking device - Google Patents

Sheet braking device Download PDF

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Publication number
EP2093176A2
EP2093176A2 EP09100101A EP09100101A EP2093176A2 EP 2093176 A2 EP2093176 A2 EP 2093176A2 EP 09100101 A EP09100101 A EP 09100101A EP 09100101 A EP09100101 A EP 09100101A EP 2093176 A2 EP2093176 A2 EP 2093176A2
Authority
EP
European Patent Office
Prior art keywords
sheet
brake
carrier
pneumatic
punching
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP09100101A
Other languages
German (de)
French (fr)
Other versions
EP2093176A3 (en
EP2093176B1 (en
Inventor
Sascha Holzschneider
Peter Dr. Palmen
Anna Wysgol
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.)
Heidelberger Druckmaschinen AG
Original Assignee
Heidelberger Druckmaschinen AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Heidelberger Druckmaschinen AG filed Critical Heidelberger Druckmaschinen AG
Publication of EP2093176A2 publication Critical patent/EP2093176A2/en
Publication of EP2093176A3 publication Critical patent/EP2093176A3/en
Application granted granted Critical
Publication of EP2093176B1 publication Critical patent/EP2093176B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • B65H29/00—Delivering or advancing articles from machines; Advancing articles to or into piles
    • B65H29/02—Delivering or advancing articles from machines; Advancing articles to or into piles by mechanical grippers engaging the leading edge only of the articles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2402/00—Constructional details of the handling apparatus
    • B65H2402/60—Coupling, adapter or locking means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2404/00—Parts for transporting or guiding the handled material
    • B65H2404/50—Surface of the elements in contact with the forwarded or guided material
    • B65H2404/56—Flexible surface
    • B65H2404/561—Bristles, brushes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2511/00—Dimensions; Position; Numbers; Identification; Occurrences
    • B65H2511/10—Size; Dimensions
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2555/00—Actuating means
    • B65H2555/10—Actuating means linear
    • B65H2555/13—Actuating means linear magnetic, e.g. induction motors
    • 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
    • B65H2701/00—Handled material; Storage means
    • B65H2701/10—Handled articles or webs
    • B65H2701/17—Nature of material
    • B65H2701/176—Cardboard
    • B65H2701/1762—Corrugated
    • 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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T483/00—Tool changing
    • Y10T483/10—Process

Definitions

  • the invention relates to a sheet brake device for a sheet punching and embossing machine according to the preamble of claim 1.
  • Sheet processing machines such as sheet punching machines, usually have a feeder, work stations, and a boom. From a stack of sheets in the feeder, an uppermost sheet is separated and transferred to a transport system. The transport system transports the sheet through the processing station to the delivery.
  • a well-known transport system are rotating gripper carriage. These each consist of a cross bar, are attached to the gripper, with which the sheet is gripped at its front edge and the ends are attached to a lateral chain hoist, which guides the gripper carriage through the machine.
  • the sheet For processing and delivery, the sheet must be braked to a standstill. This happens on the one hand by braking the gripper carriage and in addition by further sheet brakes.
  • the sheet-processing machine can be, for example, sheet-fed presses or, in particular, sheet-punching and embossing machines.
  • punching 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.
  • Packaging materials made of paper, cardboard, cardboard or corrugated board are mainly punched in sheet format. When punching but also creasing lines or blind embossing can be introduced into the benefit. This complex process makes it indispensable to punch the sheets individually.
  • Such a flat bed punch is for example from the DE 30 44 083 A1 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 sheets the 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 designatedWhentrenn arthritis.
  • the sheet must be decelerated from the transport speed to standstill. Since the weakened from the previous blank sheet arrives at high speed in the stations, the sole deceleration of the front gripper bar can cause a postponement of its rear part. This should be done by additional Braking devices, which act on the surface of the sheet can be prevented.
  • the streamlined sheet can be edited with higher accuracy and stored better.
  • the DE 695 00 514 T2 shows, for example, a sheet brake device with brushes.
  • the brake brushes are aligned obliquely to the sheet transport direction and exercise by applying a light braking force on the bow.
  • pneumatic sheet brakes are used, such as from EP 1431011 B1 known. These are also in the immediate vicinity of the sheet and provide a negative pressure, which acts as a braking force on the moving past the pneumatic sheet brake arc. Pneumatic sheet brakes have the advantage over mechanical sheet brakes that the sheet surface is not affected, and markings can be avoided. Another pneumatic sheet brake goes out of the DE 10 2005 016 783 A1 out.
  • the DE OS 27 20 674 shows the boom of a rotary printing machine with a blowing device.
  • the blowing device acts as a sheet brake and has a Blasdüsenance, which is displaceable in or against the sheet travel direction.
  • the shift is used to adapt the sheet brake to the respective sheet conveying speed.
  • the nozzles of the blast nozzle strip are subjected to compressed air and cause at the bottom of the arc due to the aerodynamic paradox a negative pressure, which causes a braking of the arc.
  • the DE 199 26 401 C1 describes a method for controlling an axially adjustable sheet braking device.
  • the sheet brakes are in or against the conveying direction of the sheet in dependence on the longitudinal format of the sheet by means of guide carriage and longitudinal drive, such as a threaded spindle, displaceable.
  • the DE 198 35 529 A1 describes a sheet brake device for corrugated board machines.
  • the device comprises suction bars which rotate on a circular path, and a suction roller opposite the arranged guide roller.
  • the suction bars are arranged below the sheet transport plane and act from below on the sheet, the guide roller, however, is arranged above the sheet transport plane and acts from above on the sheet.
  • the roller serves to guide the bow.
  • a disadvantage of the sheet brake devices known from the prior art is their limited braking power and the complicated positioning of the brake elements after a tool change and their adjustment to adapt to the sheet format. Another disadvantage is that in a job and tool change the risk of collision of the sheet brake devices with the tools.
  • Object of the present invention is therefore to provide a sheet brake device which solves these problems and allows easy and safe adjustability of the sheet braking device.
  • the sheet braking device for a sheet punching and / or embossing machine for braking sheets of paper, paperboard and the like in a processing station, such as the punching station, the breaking station or the boom, has a slidable pneumatic sheet brake and a sliding support on which at least one Brake brush is attached.
  • the pneumatic sheet brake and the slidable carrier extend across the sheet transport direction across the width of the sheet punching and / or embossing machine.
  • the pneumatic sheet brake and the carrier are advantageously mechanically coupled, for example by a driver element, so that a displacement of the pneumatic sheet brake causes a displacement of the carrier.
  • this has the advantages that when a job change pneumatic sheet brake and brake brushes can be automatically moved out of the collision area and thus the risk of collision of brake brushes and upper tool is significantly reduced and at the same time a simple adjustment of the brake brushes is made possible.
  • the pneumatic sheet brake and the carrier with the brake brushes are advantageously displaceable in and against the sheet transport direction.
  • the sheet brake device is the pneumatic sheet brake with an actuator such.
  • an actuator such as a spindle motor or a controllable electric motor connected, and the adjustment of the pneumatic sheet brake happens while aktorisch by this actuator.
  • the actuator is connected to a control unit and is controlled by this.
  • the control unit causes the pneumatic sheet brake to be automatically positioned depending on the format of the sheet and the format of the processing tools of the processing station. If the sheet format corresponds to the format of the processing tools, the pneumatic sheet brake is preferably positioned at a position relative to the trailing edge of a sheet in its rest position in the processing station. For under-format sheet format, d. H.
  • the pneumatic sheet brake is set to the - viewed in the sheet transport direction - rear edge of the machining tool, so that it can come during the strokes of the machining tool to no collisions between the tool and Bogenbrems worn.
  • the carrier is displaceable relative to the pneumatic sheet brake in and / or against the sheet transport direction. This displacement is preferably done manually and makes it possible to adjust the sheet brake carrier so that collisions of sheet brake carrier and upper tool are avoided in any case.
  • the sheet brake device has a clamping device for locking the carrier with the brake brushes relative to the machine frame of the sheet punching and / or embossing machine.
  • the locking can be done pneumatically, hydraulically, electromechanically or mechanically-manually.
  • the pneumatic sheet brake is a nozzle rail operating according to the Bernoulli principle.
  • the at least one brake brush is pivotally mounted on the carrier and can be clocked pivoted clocked about an axis parallel to the extension direction of the carrier, so that the mind. A brake brush acts temporarily on a bow.
  • the invention also relates to a sheet punching and / or embossing machine with a sheet brake device as described above.
  • all operating elements which are necessary for operating the sheet brake device and for displacing the pneumatic sheet brake and / or the carrier are arranged on the operator side of the sheet punching and / or embossing machine. This allows a simple and ergonomic adjustment with shorter set-up times.
  • the invention also relates to a method for changing and adjusting the position of a pneumatic sheet brake and at least one brake brush of a sheet brake device.
  • the braking device was automatically moved from the collision area with the tools in their - viewed in the sheet transport direction - upstream position.
  • the brake brush carrier has been moved manually further upstream. This allows easy insertion of the processing tools in the processing station.
  • the pneumatic sheet brake is automatically moved by an actuator in the sheet transport direction, so that the pneumatic sheet brake is set to the sheet trailing edge or the trailing edge of a processing tool of the processing station. Since the pneumatic sheet brake and the carrier with the brake brushes are mechanically coupled, while the carrier is moved with.
  • the carrier can additionally be moved manually. If the brake brush carrier has been raised prior to its displacement due to the change of order, the brake brush carrier is now lowered to its working position. In a subsequent step, the clamping device is activated and the carrier thus fixed relative to the machine position.
  • the sheet punching and embossing machine has separate drives of the sheet transport system and the individual processing stations.
  • the drive of the sheet transport system can be designed in particular as an electric linear drive with alternating field motors.
  • FIG. 1 the basic structure of a sheet punching and embossing machine 100 for punching, breaking and depositing sheets of paper, cardboard 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, which are supported and enclosed by a common machine housing 5.
  • the sheets 6 are separated by a feeder 1 from a stack, 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 of the punching and embossing machine 100th pulled.
  • the sheet transport system has 7 more gripper carriage 8, so that multiple sheets 6 can be processed simultaneously in the various stations 2, 3 and 4.
  • 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 mounted vertically moved back and forth and provided with punching and Rillmessern.
  • the lower table 9 is fixedly mounted in the machine frame and provided with a counter plate to the punching and Rillmessern.
  • 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.
  • the breaking station 3 the unwanted pieces of waste are pushed out of the sheet 6 downwards with the aid of the stripping tools, whereby the waste pieces 11 fall into a container-like carriage 12 inserted below the station.
  • the boom 4 has a pneumatic sheet brake 42, which acts from below on a respective sheet 6, and a brake brush 42 which acts from above on a respective sheet 6. Both braking devices 42, 43 are positioned on the sheet trailing edge of the sheet 6.
  • the boom 4 may also include a pallet 13 on which the individual sheets 6 are stacked in the form of a stack 14, so that after reaching a certain stack height, the pallets 14 are moved away with the stacked sheets 6 from the field of punching and embossing machine 100 can.
  • Fig. 2 shows the sheet braking device according to the invention in a view.
  • the device comprises two different braking elements: a pneumatic sheet brake 41, which is designed as a nozzle bar, and a plurality of brake brushes 42.
  • the pneumatic sheet brake 41 is disposed below the sheet transport plane E and acts from below on a transported in the sheet transport direction B sheet 6, by this sucks.
  • the brake brushes 42 are arranged above the sheet transport plane E and act from above on a conveyed in the sheet transport direction B sheet 6 by strip on this with light pressure.
  • the brake brushes 42 are arranged on a transversely extending to the sheet transport direction B support 46, that the brake brushes 42 are pivoted clocked by a pivoting movement D. can. By the pivoting movement D, the brake brushes 42 are lowered to an arc 6, if this is below the brake brushes 42 and then lifted again.
  • the pneumatic sheet brake 41 and the brake brush carrier 46 are mechanically coupled via a driving pin 44.
  • the driving pin 44 is pressed by a spring against a groove 43 located in the carrier 46.
  • the driving pin 44 is mounted vertically movable H in the pneumatic sheet brake 41.
  • the groove 43 may be limited as shown at their ends. As a result, the support 46 is carried along by the driving pin 44 in and counter to the transport direction B. If the groove 43 is limited only at one of its last ends, then the carrier 46 is driven by the driving pin 44 only in one direction. The reset can then be done manually.
  • the pneumatic sheet brake 41 can, in and against the sheet transport direction B as indicated by the double arrow a1 moves, ie be moved.
  • the pneumatic sheet brake 41 is driven by an actuator, in particular by an electric motor. This allows the pneumatic sheet brake 41 to be positioned to an optimum position depending on the sheet size relative to the trailing edge of a sheet in its rest position during processing in the processing station.
  • the brake elements 41,42 can be moved automatically from the collision area. Due to the mechanical coupling of pneumatic sheet brake 41 and support 46, the support 46 is displaced when moving the pneumatic sheet brake 41. Once the pneumatic sheet brake 41 is in the correct position, the carrier 46 can be additionally displaced within the dimensions of the groove 43 in or against the sheet transport direction B.
  • This additional displacement a2 is preferably done manually and allows a more accurate positioning of the brake brush 42 depending on the sheet format of the sheet 6 and allows to move the brake brush carrier 46 further from the collision area with the upper tools. As soon as the brake brushes 42 are also correctly positioned, the carrier 46 can move into its working position in FIG Direction H lowered and, as in Fig. 3 shown locked relative to the machine position 5.
  • Fig. 3 shows a plan view of the sheet brake device according to the invention.
  • a clamping device 45 is connected, by which the carrier 46 is locked to fixedly connected to the machine housing 5 strips.
  • the pneumatic sheet brake 41 is in Fig. 3 not to be seen, as this is hidden by the carrier 46.

Abstract

The device has a movable pneumatic sheet brake (41) and a movable carrier (46) at which a brake brush (42) is attached. The pneumatic sheet brake and the carrier are mechanically coupled, and a movement of the pneumatic sheet brake causes the movement of the carrier. The pneumatic sheet brake and the carrier are moved towards and against a sheet transportation direction (B). The pneumatic sheet brake is connected with an actuator (47) i.e. electric motor. The movement of the pneumatic sheet brake takes place by the actuator. An independent claim is also included for a method for changing and adjusting a position of a pneumatic sheet brake.

Description

Die Erfindung betrifft eine Bogenbremseinrichtung für eine Bogenstanz- und -prägemaschine gemäß dem Oberbegriff von Anspruch 1.The invention relates to a sheet brake device for a sheet punching and embossing machine according to the preamble of claim 1.

Bogenbearbeitende Maschinen, wie beispielsweise Bogenstanzmaschinen, besitzen gewöhnlich einen Anleger, Bearbeitungsstationen und einen Ausleger. Von einem im Anleger befindlichen Bogenstapel wird ein zuoberst liegender Bogen vereinzelt und an ein Transportsystem übergeben. Das Transportsystem transportiert den Bogen durch die Bearbeitungsstation bis zur Auslage. Ein bekanntes Transportsystem sind umlaufende Greiferwagen. Diese bestehen jeweils aus einer Querstange, an der Greifer angebracht sind, mit welchen der Bogen an seinem Vorderrand ergriffen wird und deren Enden an einem seitlichen Kettenzug befestigt sind, der die Greiferwagen durch die Maschine führt. Zur Bearbeitung und zur Auslage muss der Bogen bis zum Stillstand abgebremst werden. Dies geschieht zum einen durch Abbremsen der Greiferwagen als auch zusätzlich durch weitere Bogenbremsen. Bei der Bogenbearbeitenden Maschine kann es sich beispielsweise um Bogendruckmaschinen oder insbesondere Bogenstanz- und -prägemaschinen handeln.Sheet processing machines, such as sheet punching machines, usually have a feeder, work stations, and a boom. From a stack of sheets in the feeder, an uppermost sheet is separated and transferred to a transport system. The transport system transports the sheet through the processing station to the delivery. A well-known transport system are rotating gripper carriage. These each consist of a cross bar, are attached to the gripper, with which the sheet is gripped at its front edge and the ends are attached to a lateral chain hoist, which guides the gripper carriage through the machine. For processing and delivery, the sheet must be braked to a standstill. This happens on the one hand by braking the gripper carriage and in addition by further sheet brakes. The sheet-processing machine can be, for example, sheet-fed presses or, in particular, sheet-punching and embossing machines.

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 Papier, Karton, Pappe oder Wellpappe werden hauptsächlich im Bogenformat gestanzt. Beim Stanzvorgang können zusätzlich aber auch Rilllinien oder Blindprägungen in den Nutzen eingebracht werden. Dieser komplexe Prozess macht es unabdingbar, die Bogen einzeln zu stanzen. 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 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 vertikal bewegbaren Obertisch positioniert.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. Packaging materials made of paper, cardboard, cardboard or corrugated board are mainly punched in sheet format. When punching but also creasing lines or blind embossing can be introduced into the benefit. This complex process makes it indispensable to punch the sheets individually. 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 is best suited to these requirements just. 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 vertically movable upper table.

In bekannten Bogenstanz- und Prägemaschinen, die zum Stanzen, Ausbrechen, Prägen und Ablegen von Bögen aus Papier, Pappe und der gleichen eingesetzt werden, ist es bekannt die Bögen mittels Greiferwagen durch die einzelnen Stationen der Maschine zu bewegen. Ein jeweiliger Greiferwagen besitzt eine Greiferbrücke, an der Greifer befestigt sind, die die Bögen 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 Bögen durch die Maschine wird ein kontinuierliches Arbeiten in den einzelnen hintereinander angeordneten Stationen der Maschine, insbesondere Stanz-, Ausbrech- und Nutzentrennstation, ermöglicht.In known sheet punching and embossing machines, which are used for punching, breaking, stamping and depositing sheets of paper, cardboard and the like, it is known to move the sheets by means of gripper carriage through the individual stations of the machine. A respective gripper carriage has a gripper bridge, to which grippers are fixed, which grasp the arches 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 sheets through the machine, a continuous work in the individual successively arranged stations of the machine, in particular punching, break-away and Nutzentrennstation allows.

Eine derartige Flachbettstanze ist beispielsweise aus der DE 30 44 083 A1 bekannt. Die beiden Tische sind mit Schneid- und Rillwerkzeugen bzw. entsprechenden Gegenwerkzeugen bestückt, mit denen aus dem taktweise zwischen die Tischfläche geführten Bögen 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.Such a flat bed punch is for example from the DE 30 44 083 A1 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 sheets the 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.

Sowohl in der Stanz-, der Ausbrech- als auch in der Nutzentrennstation mit Bogenauslage muss der Bogen von der Transportgeschwindigkeit bis zum Stillstand abgebremst werden. Da der vom vorhergehenden Zuschnitt geschwächte Bogen mit hoher Geschwindigkeit in den Stationen eintrifft, kann die alleinige Verlangsamung der vorderen Greiferstange ein Aufschieben seines hinteren Teils hervorrufen. Dies soll durch zusätzliche Bremsvorrichtungen, welche auf die Fläche des Bogens wirken, verhindert werden. Der gestraffte Bogen kann mit höherer Genauigkeit bearbeitet und besser abgelegt werden.Both in the punching, break-out and pay-out stations with sheet delivery, the sheet must be decelerated from the transport speed to standstill. Since the weakened from the previous blank sheet arrives at high speed in the stations, the sole deceleration of the front gripper bar can cause a postponement of its rear part. This should be done by additional Braking devices, which act on the surface of the sheet can be prevented. The streamlined sheet can be edited with higher accuracy and stored better.

Aus dem Stand der Technik sind zwei verschiedene Bogenbremsvorrichtungstypen bekannt. Die DE 695 00 514 T2 zeigt beispielsweise eine Bogenbremsvorrichtung mit Bürsten. Die Bremsbürsten sind schräg zur Bogentransportrichtung ausgerichtet und üben durch leichten Druck eine Bremskraft auf den Bogen aus.Two different types of sheet brake devices are known in the art. The DE 695 00 514 T2 shows, for example, a sheet brake device with brushes. The brake brushes are aligned obliquely to the sheet transport direction and exercise by applying a light braking force on the bow.

In einer alternativen Lösung zu dieser mechanischen Bogenbremse kommen pneumatische Bogenbremsen zum Einsatz, wie z.B. aus der EP 1431011 B1 bekannt. Diese befinden sich ebenfalls in direkter Nähe des Bogens und stellen einen Unterdruck bereit, welcher als Bremskraft auf die sich an der pneumatischen Bogenbremse vorbei bewegenden Bogen wirkt. Pneumatische Bogenbremsen haben gegenüber mechanischen Bogenbremsen den Vorteil, dass die Bogenoberfläche nicht beeinträchtigt wird, und Markierungen so vermieden werden können. Eine weitere pneumatische Bogenbremse geht aus der DE 10 2005 016 783 A1 hervor.In an alternative solution to this mechanical sheet brake pneumatic sheet brakes are used, such as from EP 1431011 B1 known. These are also in the immediate vicinity of the sheet and provide a negative pressure, which acts as a braking force on the moving past the pneumatic sheet brake arc. Pneumatic sheet brakes have the advantage over mechanical sheet brakes that the sheet surface is not affected, and markings can be avoided. Another pneumatic sheet brake goes out of the DE 10 2005 016 783 A1 out.

Die DE OS 27 20 674 zeigt den Ausleger einer Rotationsdruckmaschine mit einer Blasvorrichtung. Die Blasvorrichtung wirkt als Bogenbremse und besitzt eine Blasdüsenleiste, welche in oder entgegen der Bogenlaufrichtung verschiebbar ist. Die Verschiebung dient der Anpassung der Bogenbremse an die jeweilige Bogenfördergeschwindigkeit. Die Düsen der Blasdüsenleiste werden mit Druckluft beaufschlagt und bewirken an der Unterseite des Bogens aufgrund des aerodynamischen Paradoxons einen Unterdruck, welcher ein Abbremsen des Bogens bewirkt.The DE OS 27 20 674 shows the boom of a rotary printing machine with a blowing device. The blowing device acts as a sheet brake and has a Blasdüsenleiste, which is displaceable in or against the sheet travel direction. The shift is used to adapt the sheet brake to the respective sheet conveying speed. The nozzles of the blast nozzle strip are subjected to compressed air and cause at the bottom of the arc due to the aerodynamic paradox a negative pressure, which causes a braking of the arc.

Die DE 199 26 401 C1 beschreibt ein Verfahren zur Steuerung einer axial einstellbaren Bogenbremseinrichtung. Die Bogenbremsen sind dabei in oder entgegen der Förderrichtung des Bogens in Abhängigkeit vom Längsformat des Bogens mittels Führungsschlitten und Längsantrieb, beispielsweise einer Gewindespindel, verschiebbar.The DE 199 26 401 C1 describes a method for controlling an axially adjustable sheet braking device. The sheet brakes are in or against the conveying direction of the sheet in dependence on the longitudinal format of the sheet by means of guide carriage and longitudinal drive, such as a threaded spindle, displaceable.

Die DE 198 35 529 A1 beschreibt eine Bogenbremsvorrichtung für Wellpappemaschinen. Die Vorrichtung umfasst Saugleisten, welche auf einer kreisförmigen Bahn rotieren, und eine den Saugleisten gegenüber angeordnete Führungswalze. Die Saugleisten sind unterhalb der Bogentransportebene angeordnet und wirken von unten auf den Bogen, die Führungswalze hingegen ist oberhalb der Bogentransportebene angeordnet und wirkt von oben auf den Bogen. Die Walze dient dabei dem Führen der Bogen.The DE 198 35 529 A1 describes a sheet brake device for corrugated board machines. The device comprises suction bars which rotate on a circular path, and a suction roller opposite the arranged guide roller. The suction bars are arranged below the sheet transport plane and act from below on the sheet, the guide roller, however, is arranged above the sheet transport plane and acts from above on the sheet. The roller serves to guide the bow.

Nachteilig an den aus dem Stand der Technik bekannten Bogenbremseinrichtungen ist deren begrenztes Bremsvermögen und die komplizierte Positionierung der Bremselemente nach einem Werkzeugwechsel und deren Einstellung zur Anpassung an das Bogenformat. Weiter nachteilig ist, dass bei einem Auftrags- und Werkzeugwechsel die Gefahr der Kollision der Bogenbremseinrichtungen mit den Werkzeugen besteht.A disadvantage of the sheet brake devices known from the prior art is their limited braking power and the complicated positioning of the brake elements after a tool change and their adjustment to adapt to the sheet format. Another disadvantage is that in a job and tool change the risk of collision of the sheet brake devices with the tools.

Aufgabe der vorliegenden Erfindung ist es deshalb, eine Bogenbremseinrichtung zu schaffen, welche diese Probleme löst und eine einfache und sichere Einstellbarkeit der Bogenbremseinrichtung erlaubt.Object of the present invention is therefore to provide a sheet brake device which solves these problems and allows easy and safe adjustability of the sheet braking device.

Gelöst wird diese Aufgabe durch eine erfindungsgemäße Bogenbremseinrichtung mit den kennzeichnenden Merkmalen von Anspruch 1.This object is achieved by a sheet braking device according to the invention with the characterizing features of claim 1.

Die erfindungsgemäße Bogenbremseinrichtung für eine Bogenstanz- und / oder -prägemaschine zum Abbremsen von Bogen aus Papier, Pappe und dergleichen in einer Bearbeitungsstation, wie der Stanzstation, der Ausbrechstation oder dem Ausleger, besitzt eine verschiebliche pneumatische Bogenbremse und einen verschieblichen Träger, an welchem mindestens eine Bremsbürste angebracht ist. Die pneumatische Bogenbremse und der verschiebliche Träger erstrecken sich quer zur Bogentransportrichtung über die Breite der Bogenstanz- und / oder -prägemaschine. Die pneumatische Bogenbremse und der Träger sind vorteilhafterweise mechanisch gekoppelt, beispielsweise durch ein Mitnehmerelement, so dass eine Verschiebung der pneumatischen Bogenbremse eine Verschiebung des Trägers bewirkt. Dies hat unter anderem die Vorteile, dass bei einem Jobwechsel pneumatische Bogenbremse und Bremsbürsten automatisch aus dem Kollisionsbereich herausgefahren werden können und damit die Kollisionsgefahr von Bremsbürsten und Oberwerkzeug deutlich verringert wird und dass gleichzeitig eine einfache Verstellung der Bremsbürsten ermöglicht wird. Die pneumatische Bogenbremse und der Träger mit den Bremsbürsten sind vorteilhafterweise in und entgegen der Bogentransportrichtung verschieblich.The sheet braking device according to the invention for a sheet punching and / or embossing machine for braking sheets of paper, paperboard and the like in a processing station, such as the punching station, the breaking station or the boom, has a slidable pneumatic sheet brake and a sliding support on which at least one Brake brush is attached. The pneumatic sheet brake and the slidable carrier extend across the sheet transport direction across the width of the sheet punching and / or embossing machine. The pneumatic sheet brake and the carrier are advantageously mechanically coupled, for example by a driver element, so that a displacement of the pneumatic sheet brake causes a displacement of the carrier. Among other things, this has the advantages that when a job change pneumatic sheet brake and brake brushes can be automatically moved out of the collision area and thus the risk of collision of brake brushes and upper tool is significantly reduced and at the same time a simple adjustment of the brake brushes is made possible. The pneumatic sheet brake and the carrier with the brake brushes are advantageously displaceable in and against the sheet transport direction.

In einer besonders vorteilhaften Ausführungsform der Bogenbremseinrichtung ist die pneumatische Bogenbremse mit einem Aktor, wie z. B. einem Spindelmotor oder einem steuerbaren Elektromotor, verbunden und die Verstellung der pneumatischen Bogenbremse geschieht dabei aktorisch durch diesen Aktor. In einer vorteilhaften Weiterbildung ist der Aktor mit einer Steuereinheit verbunden und wird durch diese angesteuert. Die Steuereinheit bewirkt, dass die pneumatische Bogenbremse automatisch in Abhängigkeit vom Format des Bogens und vom Format der Bearbeitungswerkzeuge der Bearbeitungsstation positioniert wird. Entspricht das Bogenformat dem Format der Bearbeitungswerkzeuge, so wird die pneumatische Bogenbremse bevorzugt auf eine Position relativ zur Hinterkante eines Bogens in seiner Ruheposition in der Bearbeitungsstation positioniert. Bei unterformatigem Bogenformat, d. h. wenn das Bogenformat kleiner als das Format der Bearbeitungswerkzeuge ist, wird die pneumatische Bogenbremse auf die - in Bogentransportrichtung gesehen - hintere Kante des Bearbeitungswerkzeuges eingestellt, so dass es während den Hubbewegungen des Bearbeitungswerkzeugs zu keinen Kollisionen zwischen Werkzeug und Bogenbremseinrichtung kommen kann.In a particularly advantageous embodiment of the sheet brake device is the pneumatic sheet brake with an actuator such. As a spindle motor or a controllable electric motor connected, and the adjustment of the pneumatic sheet brake happens while aktorisch by this actuator. In an advantageous development of the actuator is connected to a control unit and is controlled by this. The control unit causes the pneumatic sheet brake to be automatically positioned depending on the format of the sheet and the format of the processing tools of the processing station. If the sheet format corresponds to the format of the processing tools, the pneumatic sheet brake is preferably positioned at a position relative to the trailing edge of a sheet in its rest position in the processing station. For under-format sheet format, d. H. If the sheet format is smaller than the format of the processing tools, the pneumatic sheet brake is set to the - viewed in the sheet transport direction - rear edge of the machining tool, so that it can come during the strokes of the machining tool to no collisions between the tool and Bogenbremseinrichtung.

In einer vorteilhaften Weiterbildung der Bogenbremseinrichtung ist der Träger relativ zur pneumatischen Bogenbremse in und / oder entgegen der Bogentransportrichtung verschieblich. Diese Verschiebung geschieht bevorzugterweise manuell und ermöglicht es, den Bogenbremsenträger so einzustellen, dass Kollisionen von Bogenbremsenträger und Oberwerkzeug in jedem Fall vermieden werden.In an advantageous development of the sheet brake device, the carrier is displaceable relative to the pneumatic sheet brake in and / or against the sheet transport direction. This displacement is preferably done manually and makes it possible to adjust the sheet brake carrier so that collisions of sheet brake carrier and upper tool are avoided in any case.

In einer vorteilhaften Weiterbildung der Bogenbremseinrichtung verfügt diese über eine Klemmeinrichtung zum Arretieren des Trägers mit den Bremsbürsten relativ zum Maschinengestell der Bogenstanz- und / oder -prägemaschine. Die Arretierung kann dabei pneumatisch, hydraulisch, elektromechanisch oder mechanisch-manuell erfolgen.In an advantageous development of the sheet brake device, it has a clamping device for locking the carrier with the brake brushes relative to the machine frame of the sheet punching and / or embossing machine. The locking can be done pneumatically, hydraulically, electromechanically or mechanically-manually.

In einer vorteilhaften Weiterbildung der Bogenbremseinrichtung handelt es sich bei der pneumatischen Bogenbremse um eine nach dem Bernoulli-Prinzip arbeitende Düsenleiste. In einer weiteren vorteilhaften Weiterbildung ist die mindestens eine Bremsbürste schwenkbar an dem Träger gelagert und kann getaktet um eine Achse parallel zur Erstreckungsrichtung des Trägers getaktet geschwenkt werden, so dass die mind. eine Bremsbürste temporär auf einen Bogen wirkt.In an advantageous development of the sheet brake device, the pneumatic sheet brake is a nozzle rail operating according to the Bernoulli principle. In a further advantageous development, the at least one brake brush is pivotally mounted on the carrier and can be clocked pivoted clocked about an axis parallel to the extension direction of the carrier, so that the mind. A brake brush acts temporarily on a bow.

Die Erfindung betrifft auch eine Bogenstanz- und / oder -prägemaschine mit einer wie oben beschriebenen Bogenbremseinrichtung. Vorteilhafterweise sind alle Bedienelemente, welche zum Bedienen der Bogenbremseinrichtung und zum Verschieben der pneumatischen Bogenbremse und / oder des Trägers notwendig sind, auf der Bedienerseite der Bogenstanz- und / oder -prägemaschine angeordnet. Dadurch wird eine einfache und ergonomische Einstellung bei kürzeren Rüstzeiten ermöglicht.The invention also relates to a sheet punching and / or embossing machine with a sheet brake device as described above. Advantageously, all operating elements which are necessary for operating the sheet brake device and for displacing the pneumatic sheet brake and / or the carrier are arranged on the operator side of the sheet punching and / or embossing machine. This allows a simple and ergonomic adjustment with shorter set-up times.

Die Erfindung betrifft auch ein Verfahren zur Veränderung und Einstellung der Position einer pneumatischen Bogenbremse und mindestens einer Bremsbürste einer Bogenbremseinrichtung. Vor einem Auftragswechsel, auch Jobwechsel genannt, wurde die Bremseinrichtung automatisch aus dem Kollisionsbereich mit den Werkzeugen in ihre - in Bogentransportrichtung betrachtet - stromaufwärtigste Position verfahren. Eventuell wurde der Bremsbürstenträger manuell noch weiter stromaufwärtig verschoben. Dies ermöglicht ein problemloses Einbringen der Bearbeitungswerkzeuge in die Bearbeitungsstation. Ausgehend von dieser Position wird die pneumatische Bogenbremse durch einen Aktor automatisch in Bogentransportrichtung verschoben, so dass die pneumatische Bogenbremse auf die Bogenhinterkante oder die Hinterkante eines Bearbeitungswerkzeugs der Bearbeitungsstation eingestellt wird. Da die pneumatische Bogenbremse und der Träger mit den Bremsbürsten mechanisch gekoppelt sind, wird dabei der Träger mit verschoben. In einem nächsten Schritt kann der Träger zusätzlich noch manuell verschoben werden. Wurde der Bremsbürstenträger vor seiner Verschiebung aufgrund des Auftragswechsels angehoben, so wird der Bremsbürstenträger nun in seine Arbeitsposition abgesenkt. In einem nachfolgenden Schritt wird die Klemmeinrichtung aktiviert und der Träger damit relativ zum Maschinengestellt fixiert.The invention also relates to a method for changing and adjusting the position of a pneumatic sheet brake and at least one brake brush of a sheet brake device. Before a job change, also called job change, the braking device was automatically moved from the collision area with the tools in their - viewed in the sheet transport direction - upstream position. Eventually the brake brush carrier has been moved manually further upstream. This allows easy insertion of the processing tools in the processing station. Starting from this position, the pneumatic sheet brake is automatically moved by an actuator in the sheet transport direction, so that the pneumatic sheet brake is set to the sheet trailing edge or the trailing edge of a processing tool of the processing station. Since the pneumatic sheet brake and the carrier with the brake brushes are mechanically coupled, while the carrier is moved with. In a next step, the carrier can additionally be moved manually. If the brake brush carrier has been raised prior to its displacement due to the change of order, the brake brush carrier is now lowered to its working position. In a subsequent step, the clamping device is activated and the carrier thus fixed relative to the machine position.

Weiter ist es vorteilhaft, wenn die Bogenstanz- und -prägemaschine über getrennte Antriebe des Bogentransportsystems und der einzelnen Bearbeitungsstationen verfügt. Der Antrieb des Bogentransportsystems kann dabei insbesondere als elektrischer Linearantrieb mit Wechselfeldmotoren ausgebildet sein.Further, it is advantageous if the sheet punching and embossing machine has separate drives of the sheet transport system and the individual processing stations. The drive of the sheet transport system can be designed in particular as an electric linear drive with alternating field motors.

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

Ausführungsbeispielembodiment

Die Erfindung soll an Hand eines Ausführungsbeispiels noch näher erläutert werden. Es zeigen in schematischer Darstellung

Fig. 1
eine Bogenstanz- und -prägemaschine mit einer erfindungsgemäßen Bogenbremseinrichtung
Fig. 2
die Bogenbremseinrichtung in einer Ansicht
Fig. 3
die Bogenbremseinrichtung in einer Draufsicht
The invention will be explained in more detail with reference to an embodiment. It show in a schematic representation
Fig. 1
a sheet punching and embossing machine with a sheet brake device according to the invention
Fig. 2
the sheet brake device in a view
Fig. 3
the sheet brake device in a plan view

In Figur 1 ist der prinzipielle Aufbau einer Bogenstanz- und -prägemaschine 100 zum Stanzen, Ausbrechen und Ablegen von Bögen aus Papier, Pappe und dergleichen dargestellt. Die Stanz- und Prägemaschine 100 besitzt einen Anleger 1, eine Stanzstation 2, eine Ausbrechstation 3 und einen Ausleger 4, die von einem gemeinsamen Maschinengehäuse 5 getragen und umschlossen werden.In FIG. 1 the basic structure of a sheet punching and embossing machine 100 for punching, breaking and depositing sheets of paper, cardboard 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, which are supported and enclosed by a common machine housing 5.

Die Bögen 6 werden durch einen Anleger 1 von einem Stapel 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 besitzt 7 mehrere Greiferwagen 8, so dass mehrere Bögen 6 gleichzeitig in den verschiedenen Stationen 2, 3 und 4 bearbeitet werden können.The sheets 6 are separated by a feeder 1 from a stack, 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 of the punching and embossing machine 100th pulled.
The sheet transport system has 7 more gripper carriage 8, so that multiple sheets 6 can be processed simultaneously in the various stations 2, 3 and 4.

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 mit Stanz- und Rillmessern versehen. Der Untertisch 9 ist fest im Maschinengestell gelagert und mit einer Gegenplatte zu den Stanz- und Rillmessern versehen.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 mounted vertically moved back and forth and provided with punching and Rillmessern. The lower table 9 is fixedly mounted in the machine frame and provided with a counter plate to the punching and Rillmessern.

Der Greiferwagen 8 transportiert den Bogen 6 von der Stanz- und Prägestation 2 in die nachfolgende Ausbrechstation 3, die mit Ausbrechwerkzeugen ausgestattet ist. In der Ausbrechstation 3 werden mit Hilfe der Ausbrechwerkzeuge die nicht benötigten Abfallstücke aus dem Bogen 6 nach unten herausgestoßen, wodurch die Abfallstücke 11 in einen unter der Station eingeschobenen behälterartigen Wagen 12 fallen.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. In the breaking station 3, the unwanted pieces of waste are pushed out of the sheet 6 downwards with the aid of the stripping tools, whereby the waste pieces 11 fall into a container-like carriage 12 inserted below the station.

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 erfolgt. Der Ausleger 4 verfügt über eine pneumatische Bogenbremse 42, welche von unten auf einen jeweiligen Bogen 6 wirkt, und über eine Bremsbürste 42, welche von oben auf einen jeweiligen Bogen 6 wirkt. Beide Bremseinrichtungen 42, 43 sind auf die Bogenhinterkante des Bogens 6 positioniert. Der Ausleger 4 kann auch eine Palette 13 enthalten, auf der die einzelnen Bögen 6 in Form eines Stapels 14 aufgestapelt werden, so dass nach Erreichen einer bestimmten Stapelhöhe die Paletten 14 mit den aufgestapelten Bögen 6 aus dem Bereich der Stanz- und Prägemaschine 100 weggefahren werden können.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. The boom 4 has a pneumatic sheet brake 42, which acts from below on a respective sheet 6, and a brake brush 42 which acts from above on a respective sheet 6. Both braking devices 42, 43 are positioned on the sheet trailing edge of the sheet 6. The boom 4 may also include a pallet 13 on which the individual sheets 6 are stacked in the form of a stack 14, so that after reaching a certain stack height, the pallets 14 are moved away with the stacked sheets 6 from the field of punching and embossing machine 100 can.

Fig. 2 zeigt die erfindungsgemäße Bogenbremseinrichtung in einer Ansicht. Die Vorrichtung umfasst zwei verschiedene Bremselemente: eine pneumatische Bogenbremse 41, welche als Düsenleiste ausgeführt ist, und eine Mehrzahl von Bremsbürsten 42. Die pneumatische Bogenbremse 41 ist unterhalb der Bogentransportebene E angeordnet und wirkt von unten auf einen in Bogentransportrichtung B transportierten Bogen 6, indem sie diesen ansaugt. Die Bremsbürsten 42 sind oberhalb der Bogentransportebene E angeordnet und wirken von oben auf einen in Bogentransportrichtung B transportierten Bogen 6, indem sie auf diesem mit leichtem Druck abstreifen. Die Bremsbürsten 42 sind so an einem sich quer zur Bogentransportrichtung B erstreckenden Träger 46 angeordnet, dass die Bremsbürsten 42 durch eine Schwenkbewegung D getaktet geschwenkt werden können. Durch die Schwenkbewegung D werden die Bremsbürsten 42 auf einen Bogen 6 abgesenkt, wenn sich dieser unterhalb der Bremsbürsten 42 befindet und anschließend wieder abgehoben. Fig. 2 shows the sheet braking device according to the invention in a view. The device comprises two different braking elements: a pneumatic sheet brake 41, which is designed as a nozzle bar, and a plurality of brake brushes 42. The pneumatic sheet brake 41 is disposed below the sheet transport plane E and acts from below on a transported in the sheet transport direction B sheet 6, by this sucks. The brake brushes 42 are arranged above the sheet transport plane E and act from above on a conveyed in the sheet transport direction B sheet 6 by strip on this with light pressure. The brake brushes 42 are arranged on a transversely extending to the sheet transport direction B support 46, that the brake brushes 42 are pivoted clocked by a pivoting movement D. can. By the pivoting movement D, the brake brushes 42 are lowered to an arc 6, if this is below the brake brushes 42 and then lifted again.

Die pneumatische Bogenbremse 41 und der Bremsbürstenträger 46 sind über einen Mitnehmerbolzen 44 mechanisch gekoppelt. Der Mitnehmerbolzen 44 wird von einer Feder gegen eine sich in dem Träger 46 befindliche Nut 43 gepresst. Der Mitnehmerbolzen 44 ist dabei höhenbeweglich H in der pneumatischen Bogenbremse 41 gelagert. Die Nut 43 kann dabei wie dargestellt an ihren Enden begrenzt sein. Dadurch wird der Träger 46 durch den Mitnehmerbolzen 44 in und entgegen der Transportrichtung B mitgenommen. Ist die Nut 43 nur an einem ihrer letzten Enden begrenzt, so wird der Träger 46 durch den Mitnehmerbolzen 44 nur in eine Richtung mitgenommen. Die Rückstellung kann dann manuell erfolgen.The pneumatic sheet brake 41 and the brake brush carrier 46 are mechanically coupled via a driving pin 44. The driving pin 44 is pressed by a spring against a groove 43 located in the carrier 46. The driving pin 44 is mounted vertically movable H in the pneumatic sheet brake 41. The groove 43 may be limited as shown at their ends. As a result, the support 46 is carried along by the driving pin 44 in and counter to the transport direction B. If the groove 43 is limited only at one of its last ends, then the carrier 46 is driven by the driving pin 44 only in one direction. The reset can then be done manually.

Die pneumatische Bogenbremse 41 kann in und entgegen der Bogentransportrichtung B wie durch den Doppelpfeil a1 angedeutet, bewegt, d.h. verschoben werden. Die pneumatische Bogenbremse 41 wird dabei durch einen Aktor, insbesondere durch einen Elektromotor, angetrieben. Dadurch wird ermöglicht, dass die pneumatische Bogenbremse 41 in Abhängigkeit vom Bogenformat auf eine optimale Position positionierbar ist relativ zur Hinterkante eines Bogens in seiner Ruheposition während der Bearbeitung in der Bearbeitungsstation. Zum Werkzeugwechsel können die Bremselemente 41,42 automatisch aus dem Kollisionsbereich verfahren werden. Aufgrund der mechanischen Kopplung von pneumatischer Bogenbremse 41 und Träger 46 wird beim Verschieben der pneumatischen Bogenbremse 41 der Träger 46 mitverschoben. Sobald sich die pneumatische Bogenbremse 41 in der richtigen Position befindet, kann der Träger 46 innerhalb den Abmessungen der Nut 43 in oder entgegen der Bogentransportrichtung B zusätzlich verschoben werden. Diese zusätzliche Verschiebung a2 geschieht bevorzugt manuell und erlaubt eine exaktere Positionierung der Bremsbürsten 42 in Abhängigkeit vom Bogenformat der Bogen 6 und ermöglicht, die den Bremsbürstenträger 46 weiter aus dem Kollisionsbereich mit den Oberwerkzeugen zu verschieben. Sobald auch die Bremsbürsten 42 richtig positioniert sind, kann der Träger 46 in seine Arbeitsposition in Richtung H abgesenkt und, wie in Fig. 3 dargestellt, relativ zum Maschinengestellt 5 arretiert werden.The pneumatic sheet brake 41 can, in and against the sheet transport direction B as indicated by the double arrow a1 moves, ie be moved. The pneumatic sheet brake 41 is driven by an actuator, in particular by an electric motor. This allows the pneumatic sheet brake 41 to be positioned to an optimum position depending on the sheet size relative to the trailing edge of a sheet in its rest position during processing in the processing station. For tool change, the brake elements 41,42 can be moved automatically from the collision area. Due to the mechanical coupling of pneumatic sheet brake 41 and support 46, the support 46 is displaced when moving the pneumatic sheet brake 41. Once the pneumatic sheet brake 41 is in the correct position, the carrier 46 can be additionally displaced within the dimensions of the groove 43 in or against the sheet transport direction B. This additional displacement a2 is preferably done manually and allows a more accurate positioning of the brake brush 42 depending on the sheet format of the sheet 6 and allows to move the brake brush carrier 46 further from the collision area with the upper tools. As soon as the brake brushes 42 are also correctly positioned, the carrier 46 can move into its working position in FIG Direction H lowered and, as in Fig. 3 shown locked relative to the machine position 5.

Fig. 3 zeigt eine Draufsicht auf die erfindungsgemäße Bogenbremseinrichtung. Mit dem Bremsbürstenträger 46 ist eine Klemmeinrichtung 45 verbunden, durch welche der Träger 46 an fest mit dem Maschinengehäuse 5 verbundenen Leisten arretiert wird. Die pneumatische Bogenbremse 41 ist in Fig. 3 nicht zu sehen, da diese vom Träger 46 verdeckt wird. Fig. 3 shows a plan view of the sheet brake device according to the invention. With the brake brush holder 46, a clamping device 45 is connected, by which the carrier 46 is locked to fixedly connected to the machine housing 5 strips. The pneumatic sheet brake 41 is in Fig. 3 not to be seen, as this is hidden by the carrier 46.

BezugszeichenlisteLIST OF REFERENCE NUMBERS

11
Anlegerinvestor
22
Stanzstationpunching station
33
Ausbrechstationstripping
44
Auslegerboom
55
Maschinengehäusemachine housing
66
Bogenbow
77
BogentransportsystemSheet transport system
88th
Greiferwagengripper carriages
99
Untertischunder table
1010
Obertischovertable
1111
Abfallstücketrimmings
1212
Wagendare
1313
Palettepalette
1414
Auslagestapeldelivery pile
1515
Steuerung mit Interface und EingabegerätenControl with interface and input devices
1616
Zuführtischfeed
4040
BogenbremseinrichtungSheet braking mechanism
4141
Pneumatische BogenbremsePneumatic sheet brake
4242
Bremsbürstebrake brush
4343
Nutgroove
4444
Mitnehmerbolzendriving pins
4545
Klemmeinrichtungclamper
4646
Trägercarrier
4747
Motorengine
100100
Bogenstanz- und -prägemaschineSheet punching and embossing machine
a1a1
automatische Einstellungautomatic adjustment
a2a2
manuelle Einstellungmanual adjustment
BB
BogentransportrichtungSheet transport direction
Ee
BogentransportebeneSheet transport plane
DD
Schwenkbeweglichkeit BremsbürstePivot mobility brake brush
HH
Höhenbeweglichkeit MitnehmerHeight mobility driver

Claims (11)

Bogenbremseinrichtung (40) für eine Bogenstanz- und/oder -prägemaschine (100) zum Abbremsen von Bogen (6) aus Papier, Pappe und dergleichen in einer Bearbeitungsstation (2, 3, 4) der Bogenstanz- und/oder -prägemaschine, umfassend eine verschiebliche pneumatische Bogenbremse (41) und einen verschieblichen Träger (46), an welchem mindestens eine Bremsbürste (42) angebracht ist,
dadurch gekennzeichnet,
dass die pneumatische Bogenbremse (41) und der Träger (46) mechanisch gekoppelt sind, und eine Verschiebung der pneumatischen Bogenbremse (41) eine Verschiebung des Trägers (46) bewirkt.Sheet braking device (40) for a sheet punching and / or embossing machine (100) for braking sheets (6) of paper, cardboard and the like in a processing station (2, 3, 4) of the sheet punching and / or embossing machine, comprising slidable pneumatic sheet brake (41) and a displaceable support (46) to which at least one brake brush (42) is attached,
characterized,
in that the pneumatic sheet brake (41) and the carrier (46) are mechanically coupled, and a displacement of the pneumatic sheet brake (41) causes a displacement of the carrier (46). Bogenbremseinrichtung nach Anspruch 1,
dadurch gekennzeichnet,
dass die pneumatische Bogenbremse (41) und der Träger (46) in und entgegen der Bogentransportrichtung (B) verschieblich sind.Sheet braking device according to claim 1,
characterized,
in that the pneumatic sheet brake (41) and the carrier (46) are displaceable in and against the sheet transport direction (B). Bogenbremseinrichtung nach Anspruch 1 oder 2,
dadurch gekennzeichnet,
dass die pneumatische Bogenbremse (41) mit einem Aktor (47), insbesondere einem Elektromotor, verbunden ist, und die Verstellung der pneumatischen Bogenbremse (41) aktorisch geschieht.Sheet braking device according to claim 1 or 2,
characterized,
in that the pneumatic sheet brake (41) is connected to an actuator (47), in particular an electric motor, and the adjustment of the pneumatic sheet brake (41) is actuated. Bogenbremseinrichtung nach Anspruch 2,
dadurch gekennzeichnet,
dass der Aktor (47) mit einer Steuereinheit (15) verbunden ist, durch diese angesteuert wird und die pneumatische Bogenbremse (41) automatisch in Abhängigkeit vom Format des Bogens (6) und vom Format der Bearbeitungswerkzeuge der Bearbeitungsstation (2; 3; 4) positionierbar ist.Sheet braking device according to claim 2,
characterized,
in that the actuator (47) is connected to a control unit (15) and is actuated thereby, and the pneumatic sheet brake (41) is automatically adjusted depending on the format of the sheet (6) and the format of the processing tools of the processing station (2; 3; 4). is positionable. Bogenbremseinrichtung nach einem der Ansprüche 1 bis 3,
dadurch gekennzeichnet,
dass der Träger (46) relativ zur pneumatischen Bogenbremse (41) in und / oder entgegen der Bogentransportrichtung (B) verschieblich ist.Sheet brake device according to one of claims 1 to 3,
characterized,
in that the carrier (46) is displaceable relative to the pneumatic sheet brake (41) in and / or against the sheet transport direction (B). Bogenbremseinrichtung nach einem der Ansprüche 1 bis 4,
dadurch gekennzeichnet,
dass die Bogenbremseinrichtung (40) über eine Klemmeinrichtung (45) zum Arretieren des Trägers (46) verfügt.Sheet braking device according to one of claims 1 to 4,
characterized,
in that the sheet brake device (40) has a clamping device (45) for locking the carrier (46). Bogenbremseinrichtung nach einem der Ansprüche 1 bis 5,
dadurch gekennzeichnet,
dass es sich bei der pneumatischen Bogenbremse (41) um eine nach dem Bernoulli-Prinzip arbeitende Düsenleiste handelt.Sheet braking device according to one of claims 1 to 5,
characterized,
in that the pneumatic sheet brake (41) is a nozzle rail operating according to the Bernoulli principle. Bogenbremseinrichtung nach einem der Ansprüche 1 bis 6,
dadurch gekennzeichnet,
dass die mindestens eine Bremsbürste (42) schwenkbar an dem Träger (46) gelagert und getaktet um eine Achse senkrecht zur Bogentransportrichtung (B) schwenkbar ist.Sheet brake device according to one of claims 1 to 6,
characterized,
in that the at least one brake brush (42) is mounted pivotably on the carrier (46) and can be pivoted about an axis perpendicular to the sheet transport direction (B). Bogenstanz- und/oder -prägemaschine (100) mit einer Bogenbremseinrichtung (40) nach einem der vorangehenden Ansprüche.Sheet punching and / or embossing machine (100) with a sheet brake device (40) according to one of the preceding claims. Bogenstanz- und/oder -prägemaschine nach Anspruch 9,
dadurch gekennzeichnet,
dass die Bogenbremseinrichtung über Bedienelemente zum Verschieben der pneumatischen Bogenbremse und / oder des Trägers verfügt, welche alle auf der Bedienerseite der Bogenstanz- und/oder -prägemaschine angeordnet sind.Sheet punching and / or embossing machine according to claim 9,
characterized,
that the sheet braking means has control elements for shifting the pneumatic sheet brake and / or of the carrier, all of which are disposed on the operator side of the sheet punching and / or embossing machine. Verfahren zur Veränderung und Einstellung der Position von pneumatischer Bogenbremse (41) und mindestens einer Bremsbürste (42) einer Bogenbremseinrichtung (40) nach einem der Ansprüche 6 bis 8 bedingt durch einen Auftragswechsel mit nachfolgenden Schritten. a) Automatisches Verschieben (a1) der pneumatischen Bogenbremse (41) durch den Aktor (47) in ihre stromaufwärtigste Position, wobei bei dem Verschieben der Träger (46) mit verschoben wird. b) Optional manuelles Verschieben (a2) des Trägers (46) mit der mindestens einen Bremsbürste (42). c) Werkzeugwechsel in der Bearbeitungsstation (2, 3, 4) d) Automatisches Verschieben (a1) der pneumatischen Bogenbremse (41) durch den Aktor (47) auf eine optimale Position in Abhängigkeit vom Bogenformat oder dem Format der Bearbeitungswerkzeuge der Bearbeitungsstation (2, 3, 4), wobei bei dem Verschieben der Träger (46) mit verschoben wird. e) Optional manuelles Verschieben (a2) des Trägers (46) mit der mindestens einen Bremsbürste (42). f) Aktivieren der Klemmeinrichtung (45) zum Arretieren des Trägers (46). Method for changing and adjusting the position of the pneumatic sheet brake (41) and at least one brake brush (42) of a Sheet brake device (40) according to any one of claims 6 to 8 due to a job change with subsequent steps. a) Automatic displacement (a1) of the pneumatic sheet brake (41) by the actuator (47) in its most upstream position, wherein in the displacement of the carrier (46) is moved with. b) optionally manual shifting (a2) of the carrier (46) with the at least one brake brush (42). c) Tool change in the processing station (2, 3, 4) d) Automatic movement (a1) of the pneumatic sheet brake (41) by the actuator (47) to an optimal position depending on the sheet format or the format of the processing tools of the processing station (2, 3, 4), wherein when moving the carrier (46 ) is moved with. e) optionally manual shifting (a2) of the carrier (46) with the at least one brake brush (42). f) activating the clamping device (45) for locking the carrier (46).
EP09100101.6A 2008-02-25 2009-02-06 Sheet braking device Active EP2093176B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102008010985A DE102008010985A1 (en) 2008-02-25 2008-02-25 Sheet braking mechanism

Publications (3)

Publication Number Publication Date
EP2093176A2 true EP2093176A2 (en) 2009-08-26
EP2093176A3 EP2093176A3 (en) 2011-12-21
EP2093176B1 EP2093176B1 (en) 2013-04-10

Family

ID=40673687

Family Applications (1)

Application Number Title Priority Date Filing Date
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Country Status (4)

Country Link
US (1) US8079587B2 (en)
EP (1) EP2093176B1 (en)
DE (1) DE102008010985A1 (en)
ES (1) ES2407633T3 (en)

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Also Published As

Publication number Publication date
ES2407633T3 (en) 2013-06-13
EP2093176A3 (en) 2011-12-21
US8079587B2 (en) 2011-12-20
EP2093176B1 (en) 2013-04-10
DE102008010985A1 (en) 2009-08-27
US20090230618A1 (en) 2009-09-17

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