EP1431011B1 - Device for press-cutting and creasing - Google Patents

Device for press-cutting and creasing Download PDF

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Publication number
EP1431011B1
EP1431011B1 EP20030028663 EP03028663A EP1431011B1 EP 1431011 B1 EP1431011 B1 EP 1431011B1 EP 20030028663 EP20030028663 EP 20030028663 EP 03028663 A EP03028663 A EP 03028663A EP 1431011 B1 EP1431011 B1 EP 1431011B1
Authority
EP
European Patent Office
Prior art keywords
sheet
suction
sheets
stripping
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.)
Expired - Lifetime
Application number
EP20030028663
Other languages
German (de)
French (fr)
Other versions
EP1431011A1 (en
Inventor
Gerhard Klaassen
Gunther Bayer
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
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Filing date
Publication date
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Publication of EP1431011A1 publication Critical patent/EP1431011A1/en
Application granted granted Critical
Publication of EP1431011B1 publication Critical patent/EP1431011B1/en
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Classifications

    • 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
    • B26D7/01—Means for holding or positioning work
    • B26D7/018—Holding the work by suction
    • 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
    • B26D7/18—Means for removing cut-out material or waste
    • B26D7/1818—Means for removing cut-out material or waste by pushing out
    • 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
    • Y10T83/00—Cutting
    • Y10T83/202—With product handling means
    • Y10T83/2066—By fluid current
    • Y10T83/207—By suction means
    • 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
    • Y10T83/00—Cutting
    • Y10T83/202—With product handling means
    • Y10T83/2092—Means to move, guide, or permit free fall or flight of product
    • Y10T83/2192—Endless conveyor
    • 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
    • Y10T83/00—Cutting
    • Y10T83/647—With means to convey work relative to tool station
    • Y10T83/6584—Cut made parallel to direction of and during work movement
    • Y10T83/6633—By work moving flexible chain or conveyor

Definitions

  • the invention relates to a sheet punching and embossing machine with a device for breaking waste from a stamped and embossed sheet, the device having a Ausbrechplatte for supporting the sheets and attached to revolving chains gripper carriage, which grab the sheets at its front edge and then intermittently pull through the breakout station and other stations in the machine.
  • From DE 41 19 511 A1 discloses a device for braking sheets, especially paper or cardboard sheets that are transported on a belt conveyor with distance from each other in a plane known.
  • a braking device in the first an imbricated flow is generated.
  • the braking device consists of several circulating belts and a guide table.
  • the guide table is designed as a suction table, and the belts have suction holes in the direction of rotation.
  • a generic device for breaking waste from sheets is described in DE OS 24 54 056.
  • the sheets are held on a gripper carriage and moved intermittently between the stations by means of a chain.
  • the stripping station consists of an upper part and a lower part, which perform up and down movements and are arranged on which stripping tools.
  • the solid, intermediate middle part consists of a plate.
  • the sheets are fed into the individual stations at high speed.
  • the sheets are strongly accelerated coming from the punching station and braked in the breaking station and positioned in the correct position.
  • the gripper carriage is positioned against a mechanical stop. At high delays and driving against the mechanical stop can The bow behind the gripper carriage accumulate and it can lead to an insufficient positioning of the sheet in the breaking station.
  • a boom of a sheet-processing printing machine is known, passed in the rotating gripper, the sheet in a conveying direction to a sheet brake.
  • displaceable sheet guides are provided at the lateral edges, which lead the arc during the transfer to the sheet brake. These sheet guides can be designed as suction strips.
  • the invention has for its object to improve a Ausbrechstation a sheet punching and embossing machine in such a way that the sheet is held during feeding into the breaking station, so that a damming of the sheet is avoided behind the gripper carriage.
  • FIG. 1 the basic structure of a sheet punching and embossing machine 1 for punching, breaking and depositing sheets of paper, cardboard and the like is shown.
  • the punching and embossing machine 1 consists of a punching device 2, a Breakout device 3 and a storage device 4, which are supported and enclosed by a common machine housing 5.
  • the sheets 6 are gripped by mounted on rotating chains 7 rapiers 8 at its front edge and intermittently pulled through the various stations 2, 3 and 4 of the punching and embossing machine 1.
  • the punching station 2 consists of a lower table 9 and an upper table 10.
  • the lower table 9 is fixedly mounted in the machine frame and provided with a counter plate to the punching knife.
  • the upper table 10 is mounted vertically movable back and forth.
  • the gripper bar 8 transports the sheet 6 from the punching and embossing station 2 in the subsequent Ausbrechstation 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 storage station 4 may also include a pallet 13, on which the individual sheets are stacked in the form of a stack 14, so that after reaching a certain stack height, the pallets can be moved away with the stacked sheets 14 from the field of punching and embossing machine 1.
  • the chains 7 carry a plurality of gripper bars 8, for example. Here are 8, so that multiple sheets 6 can be processed simultaneously in the various stations 2, 3 and 4.
  • the breaking-out device 3 consists of a break-out plate 15 and two vertical reciprocating receiving frames 18 and 16 provided with breakout tools 17.
  • the bow 6 is held in the breaking station 3 via the gripper carriage 8 and this, in turn, via the stopper stop 19. To break out of the waste Ausbrechö réelleen 20 are incorporated into the Ausbrechplatte.
  • the sheet 6 is supplied from the punching station 2 coming out of the breaking station 3.
  • suction openings 22 are provided in the Ausbrechplatte.
  • switchable pneumatic units 23 are attached.
  • the vacuum can now be switched off and the suction openings 22 are provided with an overpressure.
  • the pressure causes the sheets 6 are released from the Ausbrechplatte 15.
  • the use of antistatic compressed air has proven to be advantageous.
  • the suction openings 22 are preferably arranged in the inlet region 21 of the breaking station. This offers the advantage that the sheets 6 can be detected immediately at the beginning of insertion into the breaking station 3 from the negative pressure of the suction openings 22, so that the sheets 6 are kept under tension during the entire time of feeding.
  • two rows of suction openings 22 are arranged one behind the other in the sheet running direction in the stripper plate 15.
  • FIG. 3 shows the plan view of the inlet region 21 of a Ausbrechplatte 15.
  • the Ausbrechplatte 15 is provided with suction bars 24.
  • the suction bars are provided with a plurality of suction openings 22, which in this case are provided with three suction openings 22, but two or more than three suction openings 22 may also be contained in the suction bars 24.
  • two rows of suction bars 24 are arranged one behind the other in the sheet running direction in this preferred exemplary embodiment.
  • the suction bars 24 are connected via pressure lines 25 to the pneumatic units 23, as shown in Figure 4.
  • FIG. 4 shows the section IV-IV of Figure 3. It is a section through the Ausbrechplatte 15 shown in the inlet region 21.
  • the suction bars 24 are inserted as plug-in parts in the Ausbrechplatte 15.
  • the suction openings 22 of the suction bars 24 are connected via a pressure line 25 with the switchable pneumatic units 23.
  • the pneumatic unit 23 is in turn acted upon via a pressure line 25 with an overpressure.
  • the suction opening 22 can be provided with a negative pressure or an overpressure. It is also possible to switch the pressure line 25 without pressure, but should the Ausbrechumble not be used, the suction openings 22 can be depressurized.

Landscapes

  • 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)
  • Making Paper Articles (AREA)
  • Details Of Cutting Devices (AREA)
  • Feeding Of Articles By Means Other Than Belts Or Rollers (AREA)

Abstract

The cardboard sheets are provided with the individually required openings by a punching tool and moved in a very fast motion to the next station with pushing and pulling bars carried on chains. The cardboard pieces cut out by the punching tool are removed in the next step while the sheet is positioned on top of a waste piece removal plate (15). In order to protect the sheets from being compressed by the pushing forces, a suction arrangement assembled of a pneumatic unit (23), transport ducts (25) and outlets (22) is integrated in the plate (15).

Description

Die Erfindung betrifft eine Bogenstanz- und -prägemaschine mit einer Vorrichtung zum Ausbrechen von Abfällen aus einem gestanzten und geprägten Bogen, wobei die Vorrichtung eine Ausbrechplatte zur Auflage der Bögen aufweist und mit an umlaufenden Ketten befestigten Greiferwagen, die die Bögen an ihrer Vorderkante ergreifen und dann intermittierend durch die Ausbrechstation und weitere Stationen in der Maschine hindurchziehen.The invention relates to a sheet punching and embossing machine with a device for breaking waste from a stamped and embossed sheet, the device having a Ausbrechplatte for supporting the sheets and attached to revolving chains gripper carriage, which grab the sheets at its front edge and then intermittently pull through the breakout station and other stations in the machine.

Aus der DE 41 19 511 A1 ist eine Vorrichtung zum Abbremsen von Bögen, insbesondere Papier- oder Kartonbögen, die auf einem Bandförderer mit Abstand voneinander in einer Ebene transportiert werden bekannt. Vor der Stapelstelle, am Ende der Maschine befindet sich eine Abbremseinrichtung in der zunächst ein Schuppenstrom erzeugt wird. Die Abbremseinrichtung besteht aus mehreren, umlaufenden Riemen und einem Führungstisch. Der Führungstisch ist als Saugtisch ausgebildet, und die Riemen weisen in Umlaufrichtung Sauglöcher auf. So läßt sich die zwischen dem Riemen und dem Bogen befindliche Luft absaugen, damit sich die Bogenenden problemlos aus der Einlaufebene an die Riemen legen, um so ein störungsfreies Schuppen der Bögen zu ermöglichen.From DE 41 19 511 A1 discloses a device for braking sheets, especially paper or cardboard sheets that are transported on a belt conveyor with distance from each other in a plane known. Before the stacking point, at the end of the machine is a braking device in the first an imbricated flow is generated. The braking device consists of several circulating belts and a guide table. The guide table is designed as a suction table, and the belts have suction holes in the direction of rotation. Thus, the air located between the belt and the bow can be sucked off, so that the bow ends can easily be laid from the entry plane to the belts so as to enable a trouble-free dandruff of the sheets.

Eine gattungsgemäße Vorrichtung zum Ausbrechen von Abfällen aus Bögen ist in der DE OS 24 54 056 beschrieben. Die Bögen werden an einem Greiferwagen gehalten und mittels einer Kette intermittierend zwischen den Stationen verfahren. Die Ausbrechstation besteht dabei aus einem Oberteil und einem Unterteil, welche Auf- und Abwärtsbewegungen ausführen und an welchen Ausbrechwerkzeuge angeordnet sind. Das feste, dazwischenliegende Mittelteil besteht aus einer Platte. Um eine möglichst hohe Auslastung der Maschine zu erreichen, erfolgt das Zuführen der Bögen in die einzelnen Stationen mit hoher Geschwindigkeit. Die Bögen werden aus der Stanzstation kommend stark beschleunigt und in der Ausbrechstation abgebremst und lagegerecht positioniert. Das Positionieren des Greiferwagens erfolgt gegen einen mechanischen Anschlag. Bei den hohen Verzögerungen und dem Fahren gegen den mechanischen Anschlag kann sich der Bogen hinter dem Greiferwagen aufstauen und es kann zu einer unzureichenden Positionierung des Bogens in der Ausbrechstation kommen.A generic device for breaking waste from sheets is described in DE OS 24 54 056. The sheets are held on a gripper carriage and moved intermittently between the stations by means of a chain. The stripping station consists of an upper part and a lower part, which perform up and down movements and are arranged on which stripping tools. The solid, intermediate middle part consists of a plate. In order to achieve the highest possible utilization of the machine, the sheets are fed into the individual stations at high speed. The sheets are strongly accelerated coming from the punching station and braked in the breaking station and positioned in the correct position. The gripper carriage is positioned against a mechanical stop. At high delays and driving against the mechanical stop can The bow behind the gripper carriage accumulate and it can lead to an insufficient positioning of the sheet in the breaking station.

Aus der US 6,315,287 B1 ist ein Ausleger einer Bogen verarbeitenden Druckmaschine bekannt, bei der umlaufende Greifer die Bogen in einer Förderrichtung an eine Bogenbremse übergeben. Zur sicheren Übernahme der Bogen seitens der Bogenbremse sind an den seitlichen Rändern der Bogen verschiebbare Bogenführungen vorgesehen, welche die Bogen während der Übergabe an die Bogenbremse führen. Diese Bogenführungen können als Saugleisten ausgebildet sein.From US 6,315,287 B1, a boom of a sheet-processing printing machine is known, passed in the rotating gripper, the sheet in a conveying direction to a sheet brake. For safe takeover of the sheet by the sheet brake displaceable sheet guides are provided at the lateral edges, which lead the arc during the transfer to the sheet brake. These sheet guides can be designed as suction strips.

Der Erfindung liegt die Aufgabe zugrunde, eine Ausbrechstation einer Bogenstanz- und -prägemaschine in der Weise zu verbessern, dass der Bogen während des Zuführens in die Ausbrechstation gehalten wird, so dass ein Aufstauen des Bogens hinter dem Greiferwagen vermieden wird.The invention has for its object to improve a Ausbrechstation a sheet punching and embossing machine in such a way that the sheet is held during feeding into the breaking station, so that a damming of the sheet is avoided behind the gripper carriage.

Diese Aufgabe wird mit den Merkmalen des kennzeichnenden Teils von Patentanspruch 1 gelöst. Durch die Anordnung von Saugöffnungen im Einlaufbereich der Bögen kann der Bogen unmittelbar während des Zuführens an die Ausbrechstation herangezogen werden. Das Vakuum an den Saugöffnungen zieht den Bogen an die Ausbrechplatte und verhindert somit ein Aufstauen des Bogens während des Verzögerns des Greiferwagens und beim Auftreffen auf den mechanischen Anschlag.This object is achieved with the features of the characterizing part of patent claim 1. The arrangement of suction openings in the inlet region of the sheets, the sheet can be used directly during feeding to the breaking station. The vacuum at the suction holes draws the sheet to the stripper plate and thus prevents the sheet from damming up during deceleration of the gripper carriage and when hitting the mechanical stop.

In den Zeichnungen ist eine bevorzugte Ausführungsform einer Ausbrecheinrichtung einer Bogenstanz- und -prägemaschine dargestellt.In the drawings, a preferred embodiment of a breaker of a sheet punching and embossing machine is shown.

Es zeigt

Figur 1
den prinzipiellen Aufbau einer Bogenstanz- und -prägemaschine,
Figur 2
die Seitenansicht auf eine Ausbrechstation einer Bogenstanz- und -prägemaschine,
Figur 3
die Draufsicht auf den Einlaufbereich einer Ausbrechplatte mit Ausbrechöffnungen,
Figur 4
den Schnitt durch eine Ausbrechplatte im Bereich einer Saugleiste.
It shows
FIG. 1
the basic structure of a sheet punching and embossing machine,
FIG. 2
the side view of a breaking station of a sheet punching and embossing machine,
FIG. 3
the top view of the inlet region of a Ausbrechplatte with Ausbrechöffnungen,
FIG. 4
the section through a Ausbrechplatte in the area of a squeegee.

In Figur 1 ist der prinzipielle Aufbau einer Bogenstanz- und -prägemaschine 1 zum Stanzen, Ausbrechen und Ablegen von Bögen aus Papier, Pappe und dergleichen dargestellt. Die Stanz- und Prägemaschine 1 besteht aus einer Stanzeinrichtung 2, einer Ausbrecheinrichtung 3 und einer Ablageeinrichtung 4, die von einem gemeinsamen Maschinengehäuse 5 getragen und umschlossen werden.In Figure 1, the basic structure of a sheet punching and embossing machine 1 for punching, breaking and depositing sheets of paper, cardboard and the like is shown. The punching and embossing machine 1 consists of a punching device 2, a Breakout device 3 and a storage device 4, which are supported and enclosed by a common machine housing 5.

Die Bögen 6 werden von auf umlaufenden Ketten 7 befestigten Greiferstangen 8 an ihrer Vorderkante ergriffen und intermittierend durch die verschiedenen Stationen 2, 3 und 4 der Stanz- und Prägemaschine 1 hindurchgezogen.The sheets 6 are gripped by mounted on rotating chains 7 rapiers 8 at its front edge and intermittently pulled through the various stations 2, 3 and 4 of the punching and embossing machine 1.

Die Stanzstation 2 besteht aus einem Untertisch 9 und einem Obertisch 10. Der Untertisch 9 ist fest im Maschinengestell gelagert und mit einer Gegenplatte zum Stanzmesser versehen. Der Obertisch 10 ist vertikal hin- und herbewegbar gelagert.The punching station 2 consists of a lower table 9 and an upper table 10. The lower table 9 is fixedly mounted in the machine frame and provided with a counter plate to the punching knife. The upper table 10 is mounted vertically movable back and forth.

Die Greiferstange 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 bar 8 transports the sheet 6 from the punching and embossing station 2 in the subsequent Ausbrechstation 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 in die Ablagestation 4, wo der Bogen entweder nur einfach abgelegt wird, oder aber gleichzeitig eine Trennung der einzelnen Nutzen erfolgt. Die Ablagestation 4 kann auch eine Palette 13 enthalten, auf der die einzelnen Bögen in Form eines Stapels 14 aufgestapelt werden, so daß nach Erreichen einer bestimmten Stapelhöhe die Paletten mit den aufgestapelten Bögen 14 aus dem Bereich der Stanz- und Prägemaschine 1 weggefahren werden können.From the stripping station 3, the sheet enters the storage station 4, where the sheet is either simply stored, or at the same time there is a separation of the individual benefits. The storage station 4 may also include a pallet 13, on which the individual sheets are stacked in the form of a stack 14, so that after reaching a certain stack height, the pallets can be moved away with the stacked sheets 14 from the field of punching and embossing machine 1.

Wie zu erkennen ist, tragen die Ketten 7 mehrere Greiferstängen 8, bspw. sind es hier 8, so daß mehrere Bögen 6 gleichzeitig in den verschiedenen Stationen 2, 3 und 4 bearbeitet werden können.As can be seen, the chains 7 carry a plurality of gripper bars 8, for example. Here are 8, so that multiple sheets 6 can be processed simultaneously in the various stations 2, 3 and 4.

In Figur 2 ist eine bevorzugte Ausführungsform der Erfindung der Ausbrecheinrichtung 3 der Stanz- und Prägemaschine 1 näher dargestellt. Die Ausbrecheinrichtung 3 besteht aus einer Ausbrechplatte 15 und zwei mit Ausbrechwerkzeugen 17 versehenen vertikal hin- und her beweglichen Aufnahmerahmen 18 und 16. Der Bogen 6 wird über den Greiferwagen 8 und dieser wiederum über den Passeranschlag 19 in der Ausbrechstation 3 gehalten. Zum Ausbrechen des Abfalls sind in die Ausbrechplatte Ausbrechöffnungen 20 eingearbeitet.2 shows a preferred embodiment of the invention of the breaking-3 of the punching and embossing machine 1 is shown in more detail. The breaking-out device 3 consists of a break-out plate 15 and two vertical reciprocating receiving frames 18 and 16 provided with breakout tools 17. The bow 6 is held in the breaking station 3 via the gripper carriage 8 and this, in turn, via the stopper stop 19. To break out of the waste Ausbrechöffnungen 20 are incorporated into the Ausbrechplatte.

Der Bogen 6 wird von der Stanzstation 2 kommend der Ausbrechstation 3 zugeführt. Im Einlaufbereich 21 sind in der Ausbrechplatte 15 Saugöffnungen 22 vorgesehen. An der Unterseite der Ausbrechplatte 15 sind umschaltbare pneumatische Einheiten 23 befestigt.The sheet 6 is supplied from the punching station 2 coming out of the breaking station 3. In the inlet region 21 15 suction openings 22 are provided in the Ausbrechplatte. On the underside of the Ausbrechplatte 15 switchable pneumatic units 23 are attached.

Die Bögen 6 werden mit hohen Taktfrequenzen und somit hohen Geschwindigkeiten der Ausbrechstation 3 zugeführt. Das Abbremsen des Greiferwagens 8 erfolgt ebenfalls mit einer hohen Verzögerung, so daß sich der Bogen 6 hinter dem Greiferwagen 8 aufstauen und gewölbt unter dem Ausbrechwerkzeug 17 zu liegen kommt, falls keine geeigneten Gegenmaßnahmen ergriffen werden. Durch den erfindungsgemäßen Einsatz der Saugöffnungen 22 wird nun der Bogen 6 während des Zuführens in die Ausbrechstation 3 an die Ausbrechplatte 15 herangezogen und an seiner Hinterseite abgebremst. Der Bogen 6 steht somit während des Zuführens unter einer ständigen Spannung und kann sich nicht aufstauen oder verwölben. Um die Bögen 6 beim Herausbewegen aus der Ausbrechstation 3 nicht unnötig festzuhalten, sind unterhalb der Saugöffnungen 22 umschaltbare pneumatische Einheiten 23 angeordnet. Die umschaltbaren pneumatischen Einheiten 23 sind in der Lage

  1. 1. einen Unterdruck zu erzeugen,
  2. 2. die Saugöffnungen 22 drucklos zu schalten und
  3. 3. einen Überdruck auf die Saugöffnungen 22 zu leiten.
The sheets 6 are fed with high clock frequencies and thus high speeds of the breaking station 3. The deceleration of the gripper carriage 8 is also carried out with a high delay, so that the sheet 6 dammed behind the gripper carriage 8 and curved under the stripping tool 17 comes to rest, if no appropriate countermeasures are taken. Through the use according to the invention of the suction openings 22, the sheet 6 is now used during feeding into the breaking station 3 to the Ausbrechplatte 15 and braked at its rear side. The sheet 6 is thus during feeding under a constant tension and can not accumulate or buckle. To not unnecessarily hold the sheets 6 when moving out of the breaking station 3, 22 switchable pneumatic units 23 are arranged below the suction openings. The switchable pneumatic units 23 are capable
  1. 1. to generate a negative pressure,
  2. 2. depressurize the suction openings 22 and
  3. 3. to direct an overpressure on the suction openings 22.

Zum Herausbewegen der Bögen 6 kann nun der Unterdruck abgeschaltet und die Saugöffnungen 22 mit einem Überdruck versehen werden. Der Überdruck bedingt, daß die Bögen 6 von der Ausbrechplatte 15 gelöst werden. Insbesondere der Einsatz von antistatischer Druckluft hat sich als vorteilhaft herausgestellt.To move out the sheets 6, the vacuum can now be switched off and the suction openings 22 are provided with an overpressure. The pressure causes the sheets 6 are released from the Ausbrechplatte 15. In particular, the use of antistatic compressed air has proven to be advantageous.

Die Saugöffnungen 22 sind bevorzugt im Einlaufbereich 21 der Ausbrechstation angeordnet. Dies bietet den Vorteil, daß die Bögen 6 unmittelbar zu Beginn des Einführens in die Ausbrechstation 3 vom Unterdruck der Saugöffnungen 22 erfaßt werden können, so daß die Bögen 6 während der gesamten Zeit des Zuführens unter Spannung gehalten werden. In einer bevorzugten Ausführungsform der Erfindung werden zwei Reihen von Saugöffnungen 22 in Bogenlaufrichtung hintereinander in der Ausbrechplatte 15 angeordnet.The suction openings 22 are preferably arranged in the inlet region 21 of the breaking station. This offers the advantage that the sheets 6 can be detected immediately at the beginning of insertion into the breaking station 3 from the negative pressure of the suction openings 22, so that the sheets 6 are kept under tension during the entire time of feeding. In a preferred embodiment of the invention, two rows of suction openings 22 are arranged one behind the other in the sheet running direction in the stripper plate 15.

Die Figur 3 zeigt die Draufsicht auf den Einlaufbereich 21 einer Ausbrechplatte 15. Die Ausbrechplatte 15 ist mit Saugleisten 24 versehen. Die Saugleisten sind mit mehreren Saugöffnungen 22 versehen, die in diesem Fall mit drei Saugöffnungen 22 versehen sind, es können aber auch zwei oder mehr als drei Saugöffnungen 22 in den Saugleisten 24 enthalten sein. Zur Erzeugung eines größeren Halts und einer größeren Spannung auf die Bögen 6 sind in diesem bevorzugten Ausführungsbeispiel zwei Reihen von Saugleisten 24 in Bogenlaufrichtung hintereinander angeordnet. Die Saugleisten 24 sind über Druckleitungen 25 mit den pneumatischen Einheiten 23 verbunden, wie in Figur 4 dargestellt.3 shows the plan view of the inlet region 21 of a Ausbrechplatte 15. The Ausbrechplatte 15 is provided with suction bars 24. The suction bars are provided with a plurality of suction openings 22, which in this case are provided with three suction openings 22, but two or more than three suction openings 22 may also be contained in the suction bars 24. To produce a greater hold and a greater tension on the sheets 6, two rows of suction bars 24 are arranged one behind the other in the sheet running direction in this preferred exemplary embodiment. The suction bars 24 are connected via pressure lines 25 to the pneumatic units 23, as shown in Figure 4.

Die Figur 4 zeigt den Schnitt IV-IV aus Figur 3. Es ist ein Schnitt durch die Ausbrechplatte 15 im Einlaufbereich 21 dargestellt. Die Saugleisten 24 sind als Einsteckteile in die Ausbrechplatte 15 eingelassen. An der Unterseite der Ausbrechplatte 15 sind die Saugöffnungen 22 der Saugleisten 24 über eine Druckleitung 25 mit den umschaltbaren pneumatischen Einheiten 23 verbunden. Die pneumatische Einheit 23 ist wiederum über eine Druckleitung 25 mit einem Überdruck beaufschlagt. Über die pneumatische Einheit 23 kann die Saugöffnung 22 mit einem Unterdruck oder einem Überdruck versehen werden. Es ist ebenfalls möglich die Druckleitung 25 drucklos zu schalten, sollte aber die Ausbrecheinheit nicht zum Einsatz kommen, können die Saugöffnungen 22 drucklos geschaltet werden.4 shows the section IV-IV of Figure 3. It is a section through the Ausbrechplatte 15 shown in the inlet region 21. The suction bars 24 are inserted as plug-in parts in the Ausbrechplatte 15. At the bottom of the Ausbrechplatte 15, the suction openings 22 of the suction bars 24 are connected via a pressure line 25 with the switchable pneumatic units 23. The pneumatic unit 23 is in turn acted upon via a pressure line 25 with an overpressure. Via the pneumatic unit 23, the suction opening 22 can be provided with a negative pressure or an overpressure. It is also possible to switch the pressure line 25 without pressure, but should the Ausbrecheinheit not be used, the suction openings 22 can be depressurized.

Claims (5)

  1. Sheet punching and embossing machine including a device for stripping (3) waste out of a punched and embossed sheet (6), wherein the device (3) has a stripping plate (15) for supporting the sheets (6), and the machine including gripper carriages (8) fixed to revolving chains (7) and gripping the sheets (6) at their leading edges and intermittently drawing them through the stripping station (3) and further stations (2, 4) in the machine (1),
    characterized in
    that at least one row of suction openings (22) extending perpendicular to the direction of sheet travel is arranged in the inlet region (21) of the sheets in the stripping plate (15) and upstream of the stripping openings (20), a vacuum being applicable to these suction openings (22) from below.
  2. Sheet punching and embossing machine according to claim 1,
    characterized in
    that two rows of suction openings (22) are arranged in the stripping plate (15) behind one another in the direction of sheet travel.
  3. Sheet punching and embossing machine according to claim 1,
    characterized in
    that at least one suction bar (24), preferably four suction bars, each having several suction openings (22), is provided in the stripping plate (15), perpendicular to the direction of sheet travel, the suction bar (24) being connected to a pressure line (25).
  4. Sheet punching and embossing machine according to claim 3,
    characterized in
    that at least two rows of suction bars (24) are arranged in the stripping plate (15) in the direction of sheet travel.
  5. Sheet punching and embossing machine according to one of claims 1 to 4,
    characterized in
    that at least one respective switchable unit (23) for generating a vacuum, for depressurizing, and for providing a positive pressure, is provided on the underside of the stripping plate (15) in the region of each suction opening (22) or suction bar (24), the unit (23) being connected to the suction opening (22) or suction bar (24) via a line (25).
EP20030028663 2002-12-19 2003-12-16 Device for press-cutting and creasing Expired - Lifetime EP1431011B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE2002159556 DE10259556A1 (en) 2002-12-19 2002-12-19 Sheet punching and embossing machine
DE10259556 2002-12-19

Publications (2)

Publication Number Publication Date
EP1431011A1 EP1431011A1 (en) 2004-06-23
EP1431011B1 true EP1431011B1 (en) 2006-05-10

Family

ID=32336473

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20030028663 Expired - Lifetime EP1431011B1 (en) 2002-12-19 2003-12-16 Device for press-cutting and creasing

Country Status (6)

Country Link
US (1) US7225731B2 (en)
EP (1) EP1431011B1 (en)
JP (1) JP2004195646A (en)
AT (1) ATE325687T1 (en)
DE (2) DE10259556A1 (en)
ES (1) ES2263902T3 (en)

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EP2093176A2 (en) 2008-02-25 2009-08-26 Heidelberger Druckmaschinen Aktiengesellschaft Sheet braking device
US11331823B2 (en) * 2017-07-03 2022-05-17 Weber Maschinenbau Gmbh Breidenbach Providing a cutting area with web-like interleaver material

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DE102006027124A1 (en) * 2006-06-12 2007-12-13 Heidelberger Druckmaschinen Ag Sheet punching and embossing machine, has ejector station for ejecting girpper edge from gripper and contains blower, which impinges air flow at gripper edge, and gripper carriage led in circular path across conveyor
EP1882657B1 (en) * 2006-07-26 2011-11-09 Heidelberger Druckmaschinen Aktiengesellschaft Braking system for sheets
DE102008058806A1 (en) * 2008-11-24 2010-05-27 Joachim Jakob Device for processing a material strip
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CN104441051B (en) 2013-09-25 2017-04-12 天津长荣印刷设备股份有限公司 Punching machine with gripper edge stripper

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EP2093176A2 (en) 2008-02-25 2009-08-26 Heidelberger Druckmaschinen Aktiengesellschaft Sheet braking device
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US11331823B2 (en) * 2017-07-03 2022-05-17 Weber Maschinenbau Gmbh Breidenbach Providing a cutting area with web-like interleaver material

Also Published As

Publication number Publication date
ES2263902T3 (en) 2006-12-16
DE10259556A1 (en) 2004-07-01
JP2004195646A (en) 2004-07-15
US20040149097A1 (en) 2004-08-05
ATE325687T1 (en) 2006-06-15
US7225731B2 (en) 2007-06-05
EP1431011A1 (en) 2004-06-23
DE50303282D1 (en) 2006-06-14

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