EP1867449B1 - Waste fan for a sheet punch press and embossing machine - Google Patents

Waste fan for a sheet punch press and embossing machine Download PDF

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Publication number
EP1867449B1
EP1867449B1 EP07108100A EP07108100A EP1867449B1 EP 1867449 B1 EP1867449 B1 EP 1867449B1 EP 07108100 A EP07108100 A EP 07108100A EP 07108100 A EP07108100 A EP 07108100A EP 1867449 B1 EP1867449 B1 EP 1867449B1
Authority
EP
European Patent Office
Prior art keywords
gripper
sheet
blower
station
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.)
Active
Application number
EP07108100A
Other languages
German (de)
French (fr)
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EP1867449A1 (en
Inventor
Reinhard Lappok
Peter Dr. Palmen
Guido Zanders
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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Publication of EP1867449A1 publication Critical patent/EP1867449A1/en
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Publication of EP1867449B1 publication Critical patent/EP1867449B1/en
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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
    • B26D7/18—Means for removing cut-out material or waste
    • B26D7/1845—Means for removing cut-out material or waste by non mechanical means
    • B26D7/1854—Means for removing cut-out material or waste by non mechanical means by air under pressure
    • 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
    • B65H29/04—Delivering or advancing articles from machines; Advancing articles to or into piles by mechanical grippers engaging the leading edge only of the articles the grippers being carried by endless chains or bands
    • B65H29/042—Intermediate conveyors, e.g. transferring devices
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H5/00—Feeding articles separated from piles; Feeding articles to machines
    • B65H5/08—Feeding articles separated from piles; Feeding articles to machines by grippers, e.g. suction grippers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H5/00—Feeding articles separated from piles; Feeding articles to machines
    • B65H5/08—Feeding articles separated from piles; Feeding articles to machines by grippers, e.g. suction grippers
    • B65H5/085—Feeding articles separated from piles; Feeding articles to machines by grippers, e.g. suction grippers by combinations of endless conveyors and grippers
    • 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
    • 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
    • B26D7/27—Means for performing other operations combined with cutting
    • B26D7/32—Means for performing other operations combined with cutting for conveying or stacking cut product
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2301/00—Handling processes for sheets or webs
    • B65H2301/50—Auxiliary process performed during handling process
    • B65H2301/54—Auxiliary process performed during handling process for managing processing of handled material
    • B65H2301/543—Auxiliary process performed during handling process for managing processing of handled material processing waste material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2701/00—Handled material; Storage means
    • B65H2701/10—Handled articles or webs
    • B65H2701/17—Nature of material
    • B65H2701/176—Cardboard
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2801/00—Application field
    • B65H2801/42—Die-cutting

Definitions

  • the invention relates to a sheet punching and embossing machine according to the preamble of claim 1.
  • a device in which a rotating cutting cylinder is equipped with spaced knives, wherein between the spaced knives, a suction and blowing device is set up.
  • a suction and blowing device After separating the waste strip by means of the knife arranged on the cylinder jacket of the waste strip is held by means of negative pressure on the roll shell and can thus be removed.
  • the actual ejection of the waste strip takes place in this case on the one hand, the suction is replaced by a blowing and on the other hand, a suction hood is arranged above the cylinder jacket, so that the waste strip is lifted from the cylinder jacket by the blowing air and on the other hand is attracted by the suction of the suction hood.
  • a generic sheet punching and embossing machine is described, are attached to the circulating chains gripper carriage, which draw by means of grippers arches through a sheet punching and embossing machine.
  • the sheet punching and embossing machine consists of a punching device, a breakout device and a storage device.
  • a gripper edge separated from the sheet is ejected.
  • the ejection takes place here in that the grippers of the gripper carriage are opened, so that the gripper edge falls out.
  • brushes or scraper fingers between the grippers in the machine frame which assist in ejecting the gripper edge.
  • a gripper edge is usually between two centimeters and five centimeters.
  • the gripper edge but also consist of the fully circumferential arc from which the benefit was punched out. This gripper edge in the form of a several centimeters thick edge in the size of the complete sheet must also be stored in the storage station.
  • the gripper opener curve in the ejection station must be adapted to the gripper edge in order to be able to discharge the gripper edge as waste from the machine. For this the machine has to be rebuilt.
  • a gripper opener curve is in a first position and in a gripper edge in the size of a sheet, another gripper opener curve is screwed in another position.
  • the ejection point must be continuously adjusted. This results in particular in a gripper edge in the size of a sheet that on the one hand Umrüst society arise and on the other hand, the machine speed must be reduced to eject the gripper edge in size of a sheet from the machine.
  • the object of the invention is to improve a sheet punching and embossing machine to the effect that can be dispensed with an elaborate retooling of the machine and at the same time with maximum machine power reliable ejection of the different gripper edges is guaranteed.
  • the solution should be cost-effective and feasible with the simplest design means.
  • the object is achieved in that the ejector is acted upon by a blower, so that a directed air flow acts on the gripper edge.
  • the inventive design of a sheet punching and embossing machine the possibility is now created to ensure a safe ejection of the gripper edge without a conversion of Greiferöffnerkurve. In this case, a cost-effective means is used by the use of commercially available speed-controlled fan to realize the ejection of the gripper edge.
  • a plurality of fans are mounted side by side over the entire width of the ejector, so that a fan bar is formed. This ensures that also different sized gripper edges are ejected safely over the entire width of the ejector.
  • a conveyor belt is provided in the ejector below the movement path of the gripper carriage.
  • the fan is mounted within the circular path of the gripper carriage in the machine frame. This ensures that the air flow in the direction of the conveyor belt can be particularly well aligned.
  • the fan outside the circular path of the gripper carriage is mounted as a suction fan in the machine frame. As a result, the gripper edge is reliably sucked out of the gripper carriage.
  • blower as a blowing and / or sucking blower causes a defined ejection of the gripper edge, since in particular the air when ejecting a long gripper edge by the blower, suction and / or blowing are converted into a directed air flow. As a result, a safe placement of the gripper edge is made possible on a running below the path of the gripper carriage waste belt.
  • FIG. 1 the basic structure of a sheet punching and embossing machine 1 for punching, breaking, embossing 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, a storage device 4 and an ejector 24, which are supported and enclosed by a common machine housing 5.
  • the arcs 6 are gripped by gripper bars 8 fastened on circulating chains 7 at their front edge, the actual gripper edge, and pulled intermittently through the various stations 2, 3, 4 and 24 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 in this case mounted vertically movable up and down.
  • 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 sheet 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 with the piled sheets from the field of punching and embossing machine 1 can be moved out.
  • the chains 7 carry a plurality of gripper carriages 8, so that a plurality of sheets 6 can be processed simultaneously in the various stations 2, 3, 4 and 24.
  • the gripper edge In the storage device 4, the gripper edge, not shown, separated from the sheet 6. In the ejector 24, the separated gripper edge 15 is ejected and transported away by a conveyor belt 17. Ejecting is usually done by opening the gripper 8 or by a combined opening of the gripper 8 and an arranged next to the grippers 8 brushes 21 which eject the gripper edge 15 in the case of the gripper carriage, when the gripper edge 15 despite open gripper 8 in the gripper carriage 8 remains.
  • FIG. 2 shows a side view of an inventively equipped sheet punching and embossing machine in the region of the ejector 24, in which the gripper edge 15 is ejected. It is hereby pointed out once again that the gripper edge can correspond in its dimensions to those of the entire sheet.
  • the FIG. 2 shows a conveyor belt 17 which is mounted below a circular path 18 of the gripper carriage 19 in the machine frame 20.
  • the part of the sheet punching and embossing machine forming the circular path 18 for the gripper carriage 19 forms part of the machine frame 20.
  • a stripping brush 21 is mounted in the machine frame 20.
  • a fan 22 is mounted in the machine frame 20.
  • a baffle 23 is screwed below the stripper brush 21.
  • a directed ejection of the gripping edge 15 is ensured by the guide plate 23.
  • the one or more blowers 22 are, in an advantageous embodiment of the invention, one behind the other over the entire width of the machine evenly, but distributed at least at regular intervals to each other, fixed in the machine frame 20.
  • the blowers are speed-controlled, the speed being regulated as a function of the gripper edge and the grammage.
  • the machine speed is included in the control.
  • the air flow and thus the force introduced to the waste steplessly regulated as a function of machine speed.
  • the fan bar can be installed in a sheet metal of the ejection station, which is also referred to as a shelf.
  • the gripper edge 15 is conveyed into the tray 24 shown, in which the gripper 25 of the gripper carriage 19 opens and thus releases the gripper edge 15.
  • the directed air flow which is indicated here by the arrows 26
  • the fan blade 22 By installing the fan blade 22, a constant force in the direction of the waste belt 17 is generated. This causes in an advantageous manner that even long gripper edges can be easily stored on the conveyor belt 17 and transported out of the sheet punching and embossing machine out.
  • the conveyor belt 17 conveys the ejected gripper edges 15 in the direction of the arrow F from the machine.
  • Another advantage resulting from a blowing fan 22 or fan blade 22 is that, with a small clearance to the waste, the waste stream can be better controlled.
  • blowing fan 27 in addition to a blowing fan 22, as in FIG. 3 shown.
  • the gripper edge 15 is then not pressed out of the gripper carriage 19 by means of the blower 22, but pulled out of the grippers 25 of the gripper carriage 19 by means of the directed air flow 28 of the blower 27.
  • This offers an advantage if, for example, existing machines are retrofitted or retrofitted with a fan bar 27. Since here the fan blade 27 is mounted behind the circular path 18 of the gripper carriage 19 and the fan bar 27 is easy to install.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Forests & Forestry (AREA)
  • Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)
  • Details Of Cutting Devices (AREA)
  • Making Paper Articles (AREA)
  • Discharge By Other Means (AREA)

Abstract

The machine (1) has a circular griping carriage (8), with which a sheet (6) is gripped at a gripper edge (15) using a gripper that is fastened at the gripper carriage, and a punching station (2), in which an edge of the gripper edge is separatable from the sheet. An ejector station (24) is provided for ejecting the girpper edge from the gripper and contains a blower, which impinges the air flow at the gripper edge. The gripper carriage is led in a circular path across a conveyor (17).

Description

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

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 in die einzelnen Stationen der Maschine zu bewegen. An den Greiferwagen sind Greifer befestigt, die die Bögen an einem vorderen Ende ergreifen, wobei die Greiferwagen selbst an endlosen Ketten 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 ermöglicht. Da ein Abdruck des Greifers auf dem fertig gestanzten und/oder geprägten Bogen unerwünscht ist, wird der Randbereich an dem der Greifer den Bogen erfasst, vom fertigen Bogen getrennt. Dieser Greiferrand wird üblicherweise am Ende der Maschine ausgeworfen. Zum Trennen des Greiferrands vom Bogen sind verschiedenste Vorrichtungen bekannt.In known sheet punching and embossing machines, which are used for punching, breaking, embossing and depositing sheets of paper, cardboard and the like, it is known to move the sheets by means of gripper carriage in the individual stations of the machine. Grippers are attached to the gripper carriage, gripping the arches at a front end, the gripper carriages themselves being moved through the machine on endless chains. This type of movement of the sheets through the machine enables continuous operation in the individual successively arranged stations of the machine. Since an impression of the gripper on the finished punched and / or embossed sheet is undesirable, the edge region at which the gripper grasps the sheet is separated from the finished sheet. This gripper edge is usually ejected at the end of the machine. For separating the gripper edge of the sheet a variety of devices are known.

Aus der EP 0 586 876 B1 ist eine Vorrichtung bekannt, in der ein umlaufender Schneidzylinder mit beabstandeten Messern ausgestattet ist, wobei zwischen den beabstandeten Messern eine Saug- und Blaseinrichtung eingerichtet ist. Nach dem Heraustrennen des Abfallstreifens mittels der am Zylindermantel angeordneten Messer wird der Abfallstreifen mittels Unterdruck am Walzenmantel gehalten und kann somit abtransportiert werden. Das eigentliche Auswerfen des Abfallstreifens erfolgt hierbei dadurch, dass einerseits das Saugen durch ein Blasen ersetzt wird und andererseits über dem Zylindermantel eine Saughaube angeordnet ist, so dass der Abfallstreifen vom Zylindermantel durch die Blasluft abgehoben wird und andererseits durch die Saugluft der Saughaube angezogen wird.From the EP 0 586 876 B1 a device is known in which a rotating cutting cylinder is equipped with spaced knives, wherein between the spaced knives, a suction and blowing device is set up. After separating the waste strip by means of the knife arranged on the cylinder jacket of the waste strip is held by means of negative pressure on the roll shell and can thus be removed. The actual ejection of the waste strip takes place in this case on the one hand, the suction is replaced by a blowing and on the other hand, a suction hood is arranged above the cylinder jacket, so that the waste strip is lifted from the cylinder jacket by the blowing air and on the other hand is attracted by the suction of the suction hood.

Aus der DE 102 59 556 A1 aus der die Merkmale des Oberbegriffs des Anspruchs 1 bekannt sind, ist eine gattungsgemäße Bogenstanz- und Prägemaschine beschrieben, in der an umlaufenden Ketten Greiferwagen befestigt sind, die mittels Greifern Bögen durch eine Bogenstanz- und Prägemaschine hindurch ziehen. Die Bogenstanz- und Prägemaschine besteht hierbei aus einer Stanzeinrichtung, einer Ausbrecheinrichtung und einer Ablageeinrichtung. In einer nachgeschalteten Auswerferstation wird ein vom Bogen abgetrennter Greiferrand ausgeworfen. Das Auswerfen erfolgt hierbei dadurch, dass die Greifer des Greiferwagens geöffnet werden, so dass der Greiferrand heraus fällt. Zur Unterstützung des Auswerfens des Greiferrands ist es allgemein bekannt, zwischen den Greifern im Maschinengestell Bürsten oder Abstreiffinger anzuordnen, die das Auswerfen des Greiferrands unterstützen.From the DE 102 59 556 A1 from the features of the preamble of claim 1 are known, a generic sheet punching and embossing machine is described, are attached to the circulating chains gripper carriage, which draw by means of grippers arches through a sheet punching and embossing machine. The sheet punching and embossing machine consists of a punching device, a breakout device and a storage device. In a downstream ejector station, a gripper edge separated from the sheet is ejected. The ejection takes place here in that the grippers of the gripper carriage are opened, so that the gripper edge falls out. To aid in ejecting the gripper edge, it is generally known to place brushes or scraper fingers between the grippers in the machine frame which assist in ejecting the gripper edge.

Je nach verarbeitetem Bogen in der Maschine fällt ein mehr oder weniger großer Greiferrand ab. Ein Greiferrand liegt üblicherweise zwischen zwei Zentimetern und fünf Zentimetern. Darüber hinaus kann der Greiferrand aber auch aus dem voll umfänglichen Bogen bestehen, aus dem der Nutzen herausgestanzt wurde. Dieser Greiferrand in Form eines mehrere Zentimeter starken Randes in der Größe des kompletten Bogens muss ebenfalls in der Ablagestation abgelegt werden.Depending on the processed sheet in the machine, a more or less large gripper edge falls off. A gripper edge is usually between two centimeters and five centimeters. In addition, the gripper edge but also consist of the fully circumferential arc from which the benefit was punched out. This gripper edge in the form of a several centimeters thick edge in the size of the complete sheet must also be stored in the storage station.

Insbesondere in einem derartigen Fall, wenn der Greiferrand einem voll umfänglichen Bogen entspricht muss die Greiferöffnerkurve in der Auswerferstation an den Greiferrand angepasst werden, um den Greiferrand als Abfall aus der Maschine ausschleusen zu können. Hierzu muss die Maschine umgebaut werden. Bei normalem Greiferrand wird eine Greiferöffnerkurve in eine erste Stellung und bei einem Greiferrand in der Größe eines Bogens wird eine andere Greiferöffnerkurve in einer anderen Stellung angeschraubt. Hierbei muss je nach Maschinengeschwindigkeit und Grammatur der Auswurfpunkt stufenlos eingestellt werden. Dies führt insbesondere bei einem Greiferrand in der Größe eines Bogens dazu, dass einerseits Umrüstkosten entstehen und andererseits die Maschinengeschwindigkeit reduziert werden muss, um den Greiferrand in Größe eines Bogens aus der Maschine auszuwerfen.In particular, in such a case, when the gripper edge corresponds to a fully circumferential arc, the gripper opener curve in the ejection station must be adapted to the gripper edge in order to be able to discharge the gripper edge as waste from the machine. For this the machine has to be rebuilt. At normal gripper edge a gripper opener curve is in a first position and in a gripper edge in the size of a sheet, another gripper opener curve is screwed in another position. Depending on the machine speed and grammage, the ejection point must be continuously adjusted. This results in particular in a gripper edge in the size of a sheet that on the one hand Umrüstkosten arise and on the other hand, the machine speed must be reduced to eject the gripper edge in size of a sheet from the machine.

Die Aufgabe der Erfindung besteht darin ein Bogenstanz- und Prägemaschine dahingehend zu verbessern, dass auf ein aufwendiges Umrüsten der Maschine verzichtet werden kann und gleichzeitig bei maximaler Maschinenleistung ein zuverlässiges Auswerfen der unterschiedlichen Greiferränder gewährleistet ist. Darüber hinaus soll die Lösung kostengünstig und mit einfachsten konstruktiven Mitteln realisierbar sein.The object of the invention is to improve a sheet punching and embossing machine to the effect that can be dispensed with an elaborate retooling of the machine and at the same time with maximum machine power reliable ejection of the different gripper edges is guaranteed. In addition, the solution should be cost-effective and feasible with the simplest design means.

Die Aufgabe wird erfindungsgemäß dadurch gelöst, dass die Auswerferstation mit einem Gebläse beaufschlagt ist, so dass ein gerichteter Luftstrom auf den Greiferrand wirkt. Durch die erfindungsgemäße Ausgestaltung einer Bogenstanz- und Prägemaschine ist nun die Möglichkeit geschaffen, ein sicheres Auswerfen des Greiferrandes ohne einen Umbau der Greiferöffnerkurve zu gewährleisten. Dabei wird durch den Einsatz handelsüblicher drehzahlgeregelter Gebläse ein kostengünstiges Mittel eingesetzt, um das Auswerfen des Greiferrandes zu realisieren.The object is achieved in that the ejector is acted upon by a blower, so that a directed air flow acts on the gripper edge. The inventive design of a sheet punching and embossing machine, the possibility is now created to ensure a safe ejection of the gripper edge without a conversion of Greiferöffnerkurve. In this case, a cost-effective means is used by the use of commercially available speed-controlled fan to realize the ejection of the gripper edge.

In einer bevorzugten Ausführungsform sind mehrere Gebläse nebeneinander über die gesamte Breite der Auswerferstation befestigt, so dass eine Gebläseleiste gebildet wird. Hierdurch wird gewährleistet, dass auch unterschiedlich große Greiferränder über die gesamte Breite der Auswerferstation sicher ausgeworfen werden.In a preferred embodiment, a plurality of fans are mounted side by side over the entire width of the ejector, so that a fan bar is formed. This ensures that also different sized gripper edges are ejected safely over the entire width of the ejector.

Vorteilhafterweise ist in der Auswerferstation unterhalb der Bewegungsbahn des Greiferwagens ein Förderband vorgesehen. Hierdurch wird der Abtransport besonders großer Greiferränder vereinfacht.Advantageously, a conveyor belt is provided in the ejector below the movement path of the gripper carriage. As a result, the removal of particularly large gripper edges is simplified.

In einer besonders bevorzugten Ausführungsform ist das Gebläse innerhalb der kreisförmigen Bahn des Greiferwagens im Maschinengestell befestigt. Hierdurch wird gewährleistet, dass der Luftstrom in Richtung auf das Förderband besonders gut ausgerichtet werden kann.In a particularly preferred embodiment, the fan is mounted within the circular path of the gripper carriage in the machine frame. This ensures that the air flow in the direction of the conveyor belt can be particularly well aligned.

In einer weiteren Ausführungsform ist das Gebläse außerhalb der kreisförmigen Bahn des Greiferwagens als saugendes Gebläse im Maschinengestell befestigt. Hierdurch wird der Greiferrand zuverlässig aus dem Greiferwagen herausgesaugt.In another embodiment, the fan outside the circular path of the gripper carriage is mounted as a suction fan in the machine frame. As a result, the gripper edge is reliably sucked out of the gripper carriage.

Der Einsatz eines Gebläses als blasendes und/oder saugendes Gebläse bewirkt ein definiertes Auswerfen des Greiferrandes, da insbesondere die Luft beim Auswerfen eines langen Greiferrandes durch die Gebläse, saugend und/oder blasend in eine gerichtete Luftströmung umgewandelt werden. Hierdurch wird ein sicheres Ablegen des Greiferrandes auf einem unterhalb der Bahn des Greiferwagens verlaufenden Abfallbandes ermöglicht.The use of a blower as a blowing and / or sucking blower causes a defined ejection of the gripper edge, since in particular the air when ejecting a long gripper edge by the blower, suction and / or blowing are converted into a directed air flow. As a result, a safe placement of the gripper edge is made possible on a running below the path of the gripper carriage waste belt.

Nachfolgend wird die Erfindung anhand von Ausführungsbeispielen in Zeichnungen näher erläutert. Es zeigt dabei

Figur 1
den prinzipiellen Aufbau einer Bogenstanz- und Prägemaschine
Figur 2
eine Seitenansicht im Detail im Bereich der Auswerferstation mit einem blasenden Gebläse und
Figur 3
eine Seitenansicht im Detail im Bereich der Auswerferstation mit einem saugenden Gebläse.
The invention will be explained in more detail with reference to embodiments in drawings. It shows
FIG. 1
the basic structure of a sheet punching and embossing machine
FIG. 2
a side view in detail in the area of the ejector station with a blowing fan and
FIG. 3
a side view in detail in the area of the ejector station with a suction fan.

In Figur 1 ist der prinzipielle Aufbau einer Bogenstanz- und Prägemaschine 1 zum Stanzen, Ausbrechen, Prägen und Ablegen von Bögen aus Papier, Pappe und dergleichen dargestellt. Die Stanz- und Prägemaschine 1 besteht aus einer Stanzeinrichtung 2, einer Ausbrecheinrichtung 3, einer Ablageeinrichtung 4 und einer Auswerferstation 24, die von einem gemeinsamen Maschinengehäuse 5 getragen und umschlossen werden.In FIG. 1 the basic structure of a sheet punching and embossing machine 1 for punching, breaking, embossing 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, a storage device 4 and an ejector 24, 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, dem eigentlichen Greiferrand ergriffen und intermittierend durch die verschiedenen Stationen 2, 3, 4 und 24 der Stanz- und Prägemaschine 1 hindurch gezogen.The arcs 6 are gripped by gripper bars 8 fastened on circulating chains 7 at their front edge, the actual gripper edge, and pulled intermittently through the various stations 2, 3, 4 and 24 of the punching and embossing machine 1.

Die Stanzstation 2 besteht aus einem Untertisch 9 und aus einem Obertisch 10. Der Untertisch 9 ist fest im Maschinengestell gelagert und mit einer Gegenplatte zum Stanzmesser versehen. Der Obertisch 10 ist hierbei vertikal auf und ab bewegbar 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 in this case mounted vertically movable up and down.

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 aus dem Bereich der Stanz- und Prägemaschine 1 herausgefahren 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 with the piled sheets from the field of punching and embossing machine 1 can be moved out.

Wie zu erkennen ist, tragen die Ketten 7 mehrere Greiferwagen 8, so dass mehrere Bögen 6 gleichzeitig in den verschiedenen Stationen 2, 3, 4 und 24 bearbeitet werden können.As can be seen, the chains 7 carry a plurality of gripper carriages 8, so that a plurality of sheets 6 can be processed simultaneously in the various stations 2, 3, 4 and 24.

In der Ablageeinrichtung 4 wird der nicht dargestellte Greiferrand vom Bogen 6 getrennt. In der Auswerferstation 24 wird der abgetrennte Greiferrand 15 ausgeworfen und von einem Förderband 17 abtransportiert. Das Auswerfen erfolgt üblicherweise durch ein Öffnen des Greifers 8 oder durch ein kombiniertes Öffnen des Greifers 8 und einer neben den Greifern 8 angeordneten Bürsten 21, die den Greiferrand 15 in dem Fall aus dem Greiferwagen auswerfen, wenn der Greiferrand 15 trotz geöffneter Greifer 8 im Greiferwagen 8 verbleibt.In the storage device 4, the gripper edge, not shown, separated from the sheet 6. In the ejector 24, the separated gripper edge 15 is ejected and transported away by a conveyor belt 17. Ejecting is usually done by opening the gripper 8 or by a combined opening of the gripper 8 and an arranged next to the grippers 8 brushes 21 which eject the gripper edge 15 in the case of the gripper carriage, when the gripper edge 15 despite open gripper 8 in the gripper carriage 8 remains.

Die Figur 2 zeigt eine Seitenansicht auf eine erfindungsgemäß ausgestattete Bogenstanzund Prägemaschine in dem Bereich der Auswerferstation 24, in der der Greiferrand 15 ausgeworfen wird. Es wird hierbei noch einmal darauf hingewiesen, dass der Greiferrand in seinen Abmessungen denen des gesamten Bogens entsprechen kann. Die Figur 2 zeigt ein Förderband 17, das unterhalb einer kreisförmigen Bahn 18 des Greiferwagens 19 im Maschinengestell 20 befestigt ist. Der die kreisförmige Bahn 18 für den Greiferwagen 19 bildende Teil der Bogenstanz- und Prägemaschine ist Teil des Maschinengestells 20. Etwa in der Mitte der kreisförmigen Bahn 18, ist eine Abstreifbürste 21 im Maschinengestell 20 montiert. Innerhalb der kreisförmigen Bahn 18 ist ein Gebläse 22 im Maschinengestell 20 befestigt. Zur Steigerung der gerichteten Luftströmung ist unterhalb der Abstreifbürste 21 ein Leitblech 23 angeschraubt. Neben dem Vorteil einer gerichteten Luftströmung wird durch das Leitblech 23 ein gerichtetes Auswerfen des Greifenrandes 15 gewährleistet.The FIG. 2 shows a side view of an inventively equipped sheet punching and embossing machine in the region of the ejector 24, in which the gripper edge 15 is ejected. It is hereby pointed out once again that the gripper edge can correspond in its dimensions to those of the entire sheet. The FIG. 2 shows a conveyor belt 17 which is mounted below a circular path 18 of the gripper carriage 19 in the machine frame 20. The part of the sheet punching and embossing machine forming the circular path 18 for the gripper carriage 19 forms part of the machine frame 20. Approximately in the middle of the circular path 18, a stripping brush 21 is mounted in the machine frame 20. Within the circular path 18, a fan 22 is mounted in the machine frame 20. To increase the directed air flow, a baffle 23 is screwed below the stripper brush 21. In addition to the advantage of a directed air flow, a directed ejection of the gripping edge 15 is ensured by the guide plate 23.

Das oder die Gebläse 22, sind in einer vorteilhaften Ausgestaltung der Erfindung hintereinander über die gesamte Breite der Maschine gleichmäßig, aber zumindest in regelmäßigen Abständen zueinander verteilt, im Maschinengestell 20 befestigt. Beispielhaft ist eine Zahl von fünf Gebläsen 22 zu nennen, die nebeneinander über die Breite der Maschine verteilt, im Maschinengestell 20 befestigt sind. Die Gebläse sind drehzahlgeregelt, wobei die Drehzahl in Abhängigkeit des Greiferrandes und der Grammatur geregelt wird. Zusätzlich wird die Maschinengeschwindigkeit in die Regelung miteinbezogen. Somit wird der Luftstrom und damit die eingeleitete Kraft auf den Abfall, stufenlos in Abhängigkeit der Maschinengeschwindigkeit geregelt. Durch den Einbau einer Gebläseleiste 22 wird eine konstante Kraft in Richtung des Abfallbandes 17 erzeugt. Dies bewirkt, dass die Maschinengeschwindigkeit um 20 % erhöht und gleichzeitig auf den Umbau der Greiferöffnerkurve verzichtet werden kann. Konstruktiv vorteilhaft ist es darüber hinaus, dass die Gebläseleiste in ein Blech der Auswerfstation, die auch als Ablage bezeichnet wird, eingebaut werden kann.The one or more blowers 22 are, in an advantageous embodiment of the invention, one behind the other over the entire width of the machine evenly, but distributed at least at regular intervals to each other, fixed in the machine frame 20. By way of example, mention should be made of a number of five blowers 22, which are distributed side by side across the width of the machine, fixed in the machine frame 20. The blowers are speed-controlled, the speed being regulated as a function of the gripper edge and the grammage. In addition, the machine speed is included in the control. Thus, the air flow and thus the force introduced to the waste, steplessly regulated as a function of machine speed. By installing a fan blade 22, a constant force in the direction of the waste belt 17 is generated. This causes the machine speed to increase by 20% and At the same time can be dispensed with the conversion of the Greiferöffnerkurve. It is also structurally advantageous that the fan bar can be installed in a sheet metal of the ejection station, which is also referred to as a shelf.

Aus Richtung des Pfeils P kommend wird der Greiferrand 15 in die gezeigte Ablage 24 befördert, in der sich der Greifer 25 des Greiferwagens 19 öffnet und somit den Greiferrand 15 freigibt. Durch die gerichtete Luftströmung, die hier mit den Pfeilen 26 angedeutet ist, wird das Auswerfen des Greiferrandes 15 unterstützt. Durch den Einbau der Gebläseleiste 22 wird eine konstante Kraft in Richtung des Abfallbandes 17 erzeugt. Dies bewirkt in vorteilhafter Weise, dass auch lange Greiferränder problemlos auf dem Förderband 17 abgelegt und aus der Bogenstanz- und Prägemaschine heraus befördert werden können. Dabei befördert das Förderband 17 die ausgeworfenen Greiferränder 15 in Richtung des Pfeils F aus der Maschine. Ein weiterer Vorteil, der sich aus einem blasenden Gebläse 22 oder einer Gebläseleiste 22 ergibt, ist der, dass mit geringem Abstand zum Abfall, der Abfallstrom besser gesteuert werden kann.Coming from the direction of the arrow P, the gripper edge 15 is conveyed into the tray 24 shown, in which the gripper 25 of the gripper carriage 19 opens and thus releases the gripper edge 15. By the directed air flow, which is indicated here by the arrows 26, the ejection of the gripper edge 15 is supported. By installing the fan blade 22, a constant force in the direction of the waste belt 17 is generated. This causes in an advantageous manner that even long gripper edges can be easily stored on the conveyor belt 17 and transported out of the sheet punching and embossing machine out. In this case, the conveyor belt 17 conveys the ejected gripper edges 15 in the direction of the arrow F from the machine. Another advantage resulting from a blowing fan 22 or fan blade 22 is that, with a small clearance to the waste, the waste stream can be better controlled.

Erfindungsgemäß ist es möglich, neben einem blasenden Gebläse 22 ein als saugendes Gebläse 27 einzusetzen, wie in Figur 3 dargestellt. Der Greiferrand 15 wird dann nicht mittels des Gebläses 22 aus dem Greiferwagen 19 herausgedrückt, sondern mittels der gerichteten Luftströmung 28 des Gebläses 27 aus den Greifern 25 des Greiferwagens 19 herausgezogen. Dies bietet dann einen Vorteil, wenn beispielsweise vorhandene Maschinen umgerüstet beziehungsweise mit einer Gebläseleiste 27 nachgerüstet werden. Da hier die Gebläseleiste 27 hinter die kreisförmige Bahn 18 des Greiferwagens 19 montiert wird und die Gebläseleiste 27 leicht montierbar ist.According to the invention, it is possible to use a blowing fan 27 in addition to a blowing fan 22, as in FIG. 3 shown. The gripper edge 15 is then not pressed out of the gripper carriage 19 by means of the blower 22, but pulled out of the grippers 25 of the gripper carriage 19 by means of the directed air flow 28 of the blower 27. This offers an advantage if, for example, existing machines are retrofitted or retrofitted with a fan bar 27. Since here the fan blade 27 is mounted behind the circular path 18 of the gripper carriage 19 and the fan bar 27 is easy to install.

Anzumerken bleibt, dass je nach Grammatur der zu bearbeitenden Bögen es natürlich ebenfalls möglich ist, ein saugendes 27 und ein blasendes 22 Gebläse gemeinsam und gleichzeitig einzusetzen.It should be noted that, depending on the grammage of the sheets to be processed, it is of course also possible to use a sucking 27 and a blowing 22 fan together and simultaneously.

BezugszeichenlisteLIST OF REFERENCE NUMBERS

11
Bogenstanz- und PrägemaschineSheet punching and embossing machine
22
Stanzeinrichtungpunch
33
AusbrecheinrichtungAusbrecheinrichtung
44
AblageeinrichtungBin Setup
55
Maschinengehäusemachine housing
66
Bogenbow
77
Kettenchain
88th
Greiferstangengripper bars
99
Untertischunder table
1010
Obertischovertable
1111
Abfallstücketrimmings
1212
Wagendare
1313
Palettepalette
1414
Stapelstack
1515
Greiferrandgripper edge
1616
Behältercontainer
1717
Förderbandconveyor belt
1818
kreisförmige Bahncircular path
1919
Greiferwagengripper carriages
2020
Maschinengestelltmachine frame
21 121 1
Abstreifbürstescraper brush
2222
Gebläsefan
2323
Leitblechbaffle
2424
Auswerferstationejection station
2525
Greifergrab
2626
LuftstromrichtungAirflow direction
2727
Gebläsefan
2828
Luftströmrichtungair flow direction

Claims (8)

  1. A sheet punching and embossing machine comprising at least the following components:
    - revolving gripper carriages (8, 19) with which a gripping margin (15) of a sheet (6) can be grasped by grippers (25) attached to the gripper carriages (8, 19) and the sheet moved through the machine;
    - a punching station (2) arranged to separate sections of the gripping margin (15) from the sheet (6)
    - a delivery station (4) arranged to separate the gripping margin (15) from the sheet (6)
    - and an ejection station (24) arranged to eject the gripping margin (15) from the gripper (25)
    characterized in that
    - the ejection station (24) includes a blower (22, 27) which directs a current of air (26, 28) at the gripping margin (15).
  2. The sheet punching and embossing machine according to claim 1, characterized in that a plurality of blowers (22, 27) are arranged next to one another across the entire width of the ejection station (24) so as to form a blower strip (22, 27).
  3. The sheet punching and embossing machine according to any one of the claims 1 and 2, characterized in that a conveyor belt (17) is disposed in the ejection station below a movement trajectory (18) of the gripper carriage (8, 19).
  4. The sheet punching and embossing machine according to claim 3, characterized in that the gripper carriage (8, 19) is guided along a circular path (18) across the conveyor belt (17).
  5. The sheet punching and embossing machine according to claim 4, characterized in that the blower (22) is secured inside the circular path (18) of the gripper carriage (8, 19) in the machine frame (20), and the blower (22) is operated as a blowing blower (22), wherein the current of air (26) is directed toward the conveyor belt (17).
  6. The sheet punching and embossing machine according to claim 4, characterized in that the blower (27) is secured outside the circular path (18) of the gripper carriage (8, 19) in the machine frame (20), and the blower (27) is operated as a sucking blower (27), wherein the current of air (28) is directed away from the circular path (18) of the gripper carriage (8, 19).
  7. The sheet punching and embossing machine according to any of the preceding claims, characterized in that at least one of each of a punching station (2), a stripping station (3), a delivery station (4) and an ejection station (24) are arranged in the machine in this order in a transport direction (P) of the sheet (6).
  8. The sheet punching and embossing machine according to any one of the claims 2 to 7, characterized in that the blowers are speed-regulated blowers whose speed is regulated as a function of the shape and size of the gripping margin and the paper weight.
EP07108100A 2006-06-12 2007-05-14 Waste fan for a sheet punch press and embossing machine Active EP1867449B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102006027124A DE102006027124A1 (en) 2006-06-12 2006-06-12 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

Publications (2)

Publication Number Publication Date
EP1867449A1 EP1867449A1 (en) 2007-12-19
EP1867449B1 true EP1867449B1 (en) 2010-04-28

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP07108100A Active EP1867449B1 (en) 2006-06-12 2007-05-14 Waste fan for a sheet punch press and embossing machine

Country Status (6)

Country Link
US (1) US7896329B2 (en)
EP (1) EP1867449B1 (en)
CN (1) CN101088724B (en)
AT (1) ATE465853T1 (en)
DE (2) DE102006027124A1 (en)
ES (1) ES2342204T3 (en)

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Also Published As

Publication number Publication date
EP1867449A1 (en) 2007-12-19
ATE465853T1 (en) 2010-05-15
CN101088724A (en) 2007-12-19
DE102006027124A1 (en) 2007-12-13
ES2342204T3 (en) 2010-07-02
US20070296142A1 (en) 2007-12-27
DE502007003566D1 (en) 2010-06-10
CN101088724B (en) 2011-03-02
US7896329B2 (en) 2011-03-01

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