EP2412497B1 - Dispositif et procédé destinés à changer l'outil supérieur d'un poste de coupe par estampage pour une machine à estamper des cintres - Google Patents

Dispositif et procédé destinés à changer l'outil supérieur d'un poste de coupe par estampage pour une machine à estamper des cintres Download PDF

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Publication number
EP2412497B1
EP2412497B1 EP11171823.5A EP11171823A EP2412497B1 EP 2412497 B1 EP2412497 B1 EP 2412497B1 EP 11171823 A EP11171823 A EP 11171823A EP 2412497 B1 EP2412497 B1 EP 2412497B1
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EP
European Patent Office
Prior art keywords
tool
cutting
die
stamping
changing
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Not-in-force
Application number
EP11171823.5A
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German (de)
English (en)
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EP2412497A1 (fr
Inventor
Markus Möhringer
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
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Heidelberger Druckmaschinen AG
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Publication date
Application filed by Heidelberger Druckmaschinen AG filed Critical Heidelberger Druckmaschinen AG
Publication of EP2412497A1 publication Critical patent/EP2412497A1/fr
Application granted granted Critical
Publication of EP2412497B1 publication Critical patent/EP2412497B1/fr
Not-in-force legal-status Critical Current
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Classifications

    • 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
    • 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
    • B26D7/00—Details of apparatus for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting
    • B26D7/26—Means for mounting or adjusting the cutting member; Means for adjusting the stroke of the cutting member
    • B26D2007/2607—Means for mounting or adjusting the cutting member; Means for adjusting the stroke of the cutting member for mounting die cutters

Definitions

  • the invention relates to a flatbed sheet punching and / or embossing machine according to the preamble of claim 1, and a method for changing an upper tool according to claim 7.
  • 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.
  • a well-known flatbed sheet punching machine which from the DE-A-37 12 510 is known, is additionally equipped with a handling device to facilitate an operator tool change at the individual processing stations of the punching machine.
  • the handling device is designed here as a semi-automatic lifting device, which is arranged on the operating platform of the machine and movable along it. The operator has the option of positioning the handling device at each of the processing stations and then extending a lifting fork to grip and position a tool.
  • the handling device is associated with a tool magazine, from which the tools removed or in which the tools no longer required can be stored.
  • the tool magazine is together with the handling device movable and in particular can be moved out of the operating range of the machine when it is not needed.
  • the DE 694 02 653 T2 describes a method for replacing punching tools in a crucible punch by means of a sliding carriage and the structure of this car.
  • the chassis of the car is located below a pedestal on the operator side of the crucible punch; Above the pedestal is a device for receiving a punching tool to be changed.
  • the receptacle is rotatable so that a punching tool can be provided in a horizontal position for tool change.
  • the mobility of the carriage ensures that the carriage can be moved from an outermost position on the edge of the pedestal to a transfer position directly in front of the punching station of the crucible punch.
  • the object of the present invention is therefore to describe a punching and / or embossing machine with a device for changing the upper tool of a punching and / or stamping station as well as a method for changing an upper tool, by which a simple and quick change of Upper tool of a punching and / or - embossing station with moving upper table allows.
  • the flatbed sheet punching and / or embossing machine is used for processing sheets of paper, cardboard, plastic and the like.
  • the punching machine has a feeder for providing the sheets, a punching and / or stamping station for processing the sheets as well as a boom in which the processed sheets are collected.
  • the punching machine may also have other processing stations, such as a stripping or a2.3trennstation. From a sheet transport system, the sheets are transported from the feeder to the boom through the punching machine.
  • the punching and / or stamping station has a fixed, immovable undertable and a liftable overtable counter table.
  • the upper table has a device for tool holder of an upper tool.
  • the punching machine has a device for changing the upper tool of the punching and / or stamping station, wherein by means of this device, the upper tool is provided in a substantially horizontal, ie horizontal supply level for the tool change.
  • the punching machine has a Height-compensation drive to minimize and eliminate a height difference between the providing level of the upper tool changing device and the height level of the tool-receiving device; in other words: to reduce the height difference to zero.
  • the height compensation drive is designed as a separate, controllable drive. This drive is part of the device for changing the upper tool and makes it possible to raise the supply level of the device for changing such that the supply level is at the same height level as the device connected to the upper table tool receiving device.
  • the height compensation drive is connected to a machine control and the punching and / or stamping station has a detection means for detecting the height level of the connected to the upper table means for tool holder.
  • the detection means can be designed as a sensor: eg as an opto-electronic, potentiometric or inductive sensor.
  • the signal generated by the detection means which is the Height level of the device for tool holder is characterized, is passed to the machine control, so there to bridge the height difference, a target hub of the deployment level can be calculated and the drive of the device for changing the upper tool for executing this target stroke is controlled accordingly.
  • the device for the tool holder for receiving a closing frame with punching tool and the device for changing the upper tool for changing a closing frame with punching tool is formed.
  • a punching tool held in a closing frame there is the change of a punching tool held in a closing frame.
  • a preparation of the punching tool in the closing frame is made possible while the punching tool is provided in the device for changing the upper tool. This advantageously allows additional time savings when setting up a punching tool in the course of a tool change.
  • the top tool changing device may be positioned immediately adjacent the punching and / or stamping station and has a tool holder for receiving and providing the top tool in a substantially horizontal, i.e. horizontal deployment level.
  • the device for changing the upper tool on a controllable height compensation drive, for lifting movement of the tool holder of the device. This ensures that a height difference between the height level of the tool holder of the apparatus for changing the upper tool and the height level at which the upper tool can be inserted into the punching and / or embossing station can be canceled.
  • this has a further drive, in particular a manual drive, for pivoting the tool holder from the substantially horizontal supply level into an in Essentially vertical parking position.
  • a manual drive for pivoting the tool holder from the substantially horizontal supply level into an in Essentially vertical parking position.
  • the use of the manual drive has the advantage that with appropriate translation a quick pivoting movement is made possible and at the same time pinching or squeezing of the machine operator is prevented by the moving tool holder.
  • a gallery or a pedestal located on the operator side of the punching machine can be used by the machine operator, that is to say the device for changing the upper tool is not an obstacle.
  • the pivotability thus makes it possible in an advantageous manner
  • the gallery or the pedestal can be built narrower, which material costs are saved and why only a smaller footprint for setting up the punching machine is needed.
  • the tool holder has in an advantageous manner mutually parallel rails, which allows simultaneous recording of two upper tools in mutually parallel planes.
  • the tool holder is rotatably mounted and by a rotational movement through 180 °, the two upper tools can be moved alternately into the horizontal supply level.
  • This version of the tool holder allows a particularly fast replacement of the upper tool.
  • the invention also relates to a method for changing an upper tool of a punching and / or stamping station with a liftable upper table.
  • the punching and / or embossing station is part of a punching machine as described above.
  • the method comprises the following steps:
  • a first upper tool is provided in a tool holder of a device for changing the upper tool in a supply plane.
  • the device for changing the upper tool can in particular, as described above, be executed.
  • the punching and / or embossing station is stopped, ie the lifting movement of the upper table is suspended.
  • the height difference between the height level of the upper table, more precisely the height level of the tool holder of the upper table, and the provision level of the device for Changing the upper tool determined. Thereupon, either the upper table or the supply level is moved vertically by the determined height difference and the height difference is thereby compensated.
  • a second upper tool from the punching and / or stamping station into the tool receptacle of the device for changing the upper tool can take place.
  • the first upper tool is transferred from the tool holder of the device for changing the upper tool in the punching and / or stamping station in a last step.
  • the difference in height between the height level of the upper table and the providing level is determined by detecting, in particular measuring, the height level of the upper table and calculating the difference in height with the known height level of the providing level.
  • the supply level then carries out a lifting movement about the calculated height difference.
  • the tool holder is rotated by 180 ° in order to spend the first upper tool to be moved into the punching and / or embossing station into the supply plane and thus transferring in the punching and / or stamping station to allow.
  • FIG. 1 the basic structure of a sheet punching and embossing machine 100 for punching, breaking, depaneling and storing 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. From one side, the so-called operator side, the processing stations 2, 3, 4 are accessible via a walk-on platform 5.1; on the opposite side, the so-called drive side, there is the drive train of the sheet punching and embossing machine 100.
  • 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 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 or in an alternative embodiment by an electromagnetic linear drive with traveling field motors.
  • 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 reciprocating h stored and provided with a tool 30 with punching and Rillmessern.
  • the upper table 10 is driven by a drive 2.1. This allows the upper table 10 to be stopped or positioned so that the tool-receiving device 30 is located exactly at the reference height r of a device for changing the upper tool 40 mounted in front of the stamping station 2.
  • the device for changing the upper tool 40 is in Fig. 1 not shown, but as in Fig. 5 be shown represented.
  • the lower table 9 is fixedly mounted in the machine frame 5 and provided with a counter-plate 20 to the punching and Rillmessern.
  • 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.
  • the break-out station 3 the unwanted pieces of waste are pushed out of the sheet 6 downwards by means of the break-off tools, whereby the waste pieces 11 fall into a carriage-like container 12 inserted below the station.
  • 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 pallet 13 can be moved away with the sheet stack 14 from the field of punching and embossing machine 100 ,
  • the punching machine 100 according to Fig. 2 differs only in the formation of the punching station 2 of the punching machine 100 according to Fig. 1 :
  • a sensor 17 is arranged, which detects the height level of the upper table 10, or more precisely: the height level of the device for tool holder 30.
  • the measured signal is forwarded to a machine controller 15.
  • the height difference between the measured height level and the reference height r of a device mounted in front of the punching station 2 for changing the upper tool 40 (frame changer) is calculated.
  • the device for changing the upper tool 40 is in Fig. 1 not shown, but as in the Fig. 3 and 4 be shown represented.
  • a height compensation drive 42.1 of the device 40 receives from the machine controller 15 a control pulse to raise the supply level r of the frame support (reference level).
  • FIG. 3 shows the device 40 according to the invention for changing the upper tool: the device 40 stands on the machine foundation 200 and has arms 47, which protrude through a mounted in front of a sheet punching machine 100 podium 5.1, also referred to as gallery. At the upper ends of the arms 47, the device 40 has two tool holders 45.
  • a respective tool holder 45 is formed by rails 45.1, in which a in Fig. 3 not shown upper tool can be inserted.
  • a respective rail 45.1 far on a plurality of rollers 45.2, on which an unillustrated upper tool can be moved with low friction.
  • the upper tool holder 45 is located in a supply plane r, from which an upper tool (not shown) can be transferred to a punching and / or stamping station 2 of a punching machine 100.
  • the unit of the two tool holders 45 is rotated by 180 °, as indicated by the double arrow d.
  • a securing element designed here as a locking pin 45.3, is provided in each tool holder 45. This is manually operated.
  • the tool holder 45 is variable in its height level.
  • the motor 42.1 which acts as a height compensation drive, a stroke movement h 'of the tool holder 45 can be effected.
  • the motor 42.1 is connected to a machine control 15 and is controlled by it (see Fig. 2 ).
  • Fig. 4 shown in a side view.
  • the lifting mechanism for carrying out the lifting movement h 'of the tool holder 45 results from the synopsis of Figures 3 and 6 ,
  • the elements for transmitting the rotary motion 42.2, 44.1, 44.2, 44.3, 41.2 is rotatably mounted on the pivot 47 at an arm 47.
  • the motor 42.1 experiences a control pulse from the machine control 15 as height compensation drive.
  • the rotary motion of the motor 42.1 is transmitted to a threaded sleeve 44.1 via a spur gear 42.2.
  • the threaded head of the displacement element 46.2 converts this rotational movement into a displacement movement of the displacement element 46.2.
  • the device 40 After a closing frame was introduced with punching tool 30.1 from the tool holder 45 of the device 40 for changing the upper tool in the supply level r in the punching station 2 of a sheet punching machine 100, as in Fig. 5 shown, the device 40 with its tool holder 45 as indicated by the double arrow s, are pivoted. This ensures that the pedestal is 5.1 freely accessible by a machine operator and the device 40 is not an obstacle on the pedestal 5.1.
  • Fig. 7 shows an advantageous additional application of the device 40 for changing the upper tool.
  • a closing frame 31 with upper tool this is taken over from the punching station 2 protruding arms 2.2.
  • the eyelet with the closing frame 30.1 must be lifted out of the recess 2.3.
  • This lifting can be accomplished by the device 40.
  • the device 40 has an actuating button 42.11 in order to activate the height compensation drive 42.1 and thus lift the tool holder 45.
  • the closing frame 30.1 is then released from the displacement protection of the depression 2.3.
  • Fig. 8 shows an alternative embodiment of the inventive device 40 for changing the upper tool 10.1.
  • the lifting movement h 'of the tool holder 45 takes place in a modified manner:
  • a roller 51 is attached at the lower end of an arm 47 of a respective pair of arms 47.
  • the roller 51 rests on a rolling curve 50.
  • a motor 52 which is coupled to the rolling curves 50, a height adjustment 53 of the rolling curves 50 is possible and thus a stroke movement h 'of the tool holder.
  • a displacement movement v of the tool holder 45 in order to spend this in a parking position in which the tool holder 45 requires only little space and the pedestal 5.1 is freely accessible to the operator, is achieved by rolling off the rollers 51 on the curves 50.
  • the arms 47 are moved to a substantially vertical position.
  • the rolling movement a can be performed by the operator simply by manual operation.
  • the tool holder 45 can be pivoted even in a vertical position.

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  • Life Sciences & Earth Sciences (AREA)
  • Forests & Forestry (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)

Claims (7)

  1. Machine de gaufrage et/ou de découpe de feuilles (100) pour le traitement de feuilles (6) en papier, carton matière plastique et similaire comprenant un margeur (1), une station de gaufrage et/ou de découpe (2), un poste de réception (4) et un dispositif (40) pour le changement de l'outil supérieur (30.1) de la station de gaufrage et/ou de découpe (2), l'outil supérieur (30.1) étant disponible au moyen du dispositif (40) dans un plan de disponibilité sensiblement horizontal pour le changement de l'outil supérieur (30.1), et la station de gaufrage et/ou de découpe (2) présentant une table inférieure fixe immobile (9) et une table supérieure (10) mobile en élévation par rapport à la table inférieure (9), la table supérieure (10) disposant d'un dispositif (30) pour le logement de l'outil,
    caractérisée en ce que
    la machine à plat de gaufrage, et/ou de découpe de feuilles (100) comprend un entraînement de compensation de hauteur (2.1 ; 42.1) pour compenser une différence de hauteur entre le plan de disponibilité (r) et le niveau de hauteur du dispositif pour le logement de l'outil, l'entraînement de compensation de hauteur (42.1) étant réalisé comme un entraînement séparé, commandable, faisant partie du dispositif (40) pour le changement de l'outil supérieur, et le plan de disponibilité (r) étant soulevable (h') de sorte que le plan de disponibilité (r) se trouve au même niveau de hauteur que le dispositif (30) pour le logement d'outils de la station de gaufrage et/ou de découpe (2), et
    en ce que l'entraînement de compensation de hauteur (42.1) est relié à une commande de machine (15), en ce que la station de gaufrage et/ou de découpe (2) possède un moyen de saisie (17), en particulier un détecteur, pour la saisie du niveau de hauteur du dispositif (30) pour le logement d'outil, et en ce que le signal du moyen de saisie (17) est amené à la commande de machine (15) pour le calcul d'une course théorique du plan de disponibilité (r).
  2. Machine de gaufrage et/ou de découpe de feuilles selon la revendication 1,
    caractérisée en ce que
    le dispositif (30) pour le logement d'outil est réalisé pour le logement d'un cadre de fermeture (30.1) avec un outil de découpe et
    le dispositif (40) est réalisé pour le changement de l'outil supérieur et du cadre supérieur (30.1) d'outil de découpe avec un outil de coupe.
  3. Machine de gaufrage et/ou de découpe de feuilles selon l'une des revendications précédentes, caractérisée en ce que le dispositif (40) pour le changement de l'outil supérieur est positionnable directement juxtaposé à la station de gaufrage et/ou de découpe (2) de la machine à plat de gaufrage, et/ou de découpe de feuilles (100) et un logement d'outil (45) possède pour le logement et la disponibilité de l'outil supérieur (30.1) dans un plan de disponibilité (r) sensiblement horizontal.
  4. Machine de gaufrage et/ou de découpe de feuilles selon la revendication 1,
    caractérisée en ce que
    le dispositif (40) pour le changement de l'outil supérieur présente un autre entraînement (41.1), en particulier un entraînement manuel pour le basculement (s) du logement d'outil (45) dans une position de parking sensiblement verticale.
  5. Machine de gaufrage et/ou de découpe de feuilles selon la revendication 3,
    caractérisée en ce que
    le dispositif (40) pour le changement de l'outil supérieur (10.1) présente un dispositif de débobinage (50, 51, 54) pour le déplacement du logement d'outil (45) dans une position de parking.
  6. Machine de gaufrage et/ou de découpe de feuilles selon la revendication 3 ou 4 ou 5, caractérisée en ce que le logement d'outil (45) présente des rails (45.1) disposés parallèlement entre eux pour le logement parallèle et simultané de deux outils supérieurs (30.1) et en ce que le logement d'outil (45) est rotatif (d) sur 180°.
  7. Procédé pour le changement d'un outil supérieur (30.1) d'une station de gaufrage et/ou de découpe (2) avec une table supérieure mobile en élévation (10), une machine à plat de gaufrage, et/ou de découpe de feuilles (100) selon l'une des revendications 3 à 6 avec les étapes suivantes .
    a) disponibilité d'un premier outil supérieur (30.1) dans un logement d'outil (45) d'un dispositif (40) pour le changement de l'outil supérieur selon l'une des revendications 6 à 8, dans un plan de disponibilité (r),
    b) arrêt de la station de gaufrage et/ou de découpe (2)
    c) détermination de la différence de hauteur entre le niveau de hauteur de la table supérieure et du niveau de hauteur du plan de disponibilité (r) du dispositif (40) pour le changement de l'outil supérieur,
    d) déplacement vertical du plan de disponibilité (r) de l'équivalent de la différence de hauteur déterminée
    e) remise d'un second outil supérieur (30.1) dans un plan de disponibilité (r) depuis le logement d'outil (45) du dispositif (40) pour le changement de l'outil supérieur de la station de gaufrage et/ou de découpe (2), dans l'étape c) le niveau de hauteur de la table supérieure (10) étant saisi et ainsi la différence de hauteur calculée, dans l'étape d) plan de disponibilité (r) exécutant un déplacement d'élévation (h') et entre l'étape e) et l'étape f) le logement (45) étant tourné (d) de 180°.
EP11171823.5A 2010-07-29 2011-06-29 Dispositif et procédé destinés à changer l'outil supérieur d'un poste de coupe par estampage pour une machine à estamper des cintres Not-in-force EP2412497B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102010032643A DE102010032643A1 (de) 2010-07-29 2010-07-29 Vorrichtung und Verfahren zum Wechseln des Oberwerkzeugs einer Stanzstation einer Bogenstanzmaschine

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EP2412497A1 EP2412497A1 (fr) 2012-02-01
EP2412497B1 true EP2412497B1 (fr) 2013-12-18

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DE102010032643A1 (de) 2012-02-02

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