EP0017029A1 - Device for cutting sheet metal and stacking cut-off blanks - Google Patents

Device for cutting sheet metal and stacking cut-off blanks Download PDF

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Publication number
EP0017029A1
EP0017029A1 EP19800101263 EP80101263A EP0017029A1 EP 0017029 A1 EP0017029 A1 EP 0017029A1 EP 19800101263 EP19800101263 EP 19800101263 EP 80101263 A EP80101263 A EP 80101263A EP 0017029 A1 EP0017029 A1 EP 0017029A1
Authority
EP
European Patent Office
Prior art keywords
sheet metal
lifting table
stack
support device
pallet
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP19800101263
Other languages
German (de)
French (fr)
Other versions
EP0017029B1 (en
Inventor
Eduard A. Haenni
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.)
Haemmerle AG Maschinenfabrik
Original Assignee
Haemmerle AG Maschinenfabrik
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Haemmerle AG Maschinenfabrik filed Critical Haemmerle AG Maschinenfabrik
Priority to AT80101263T priority Critical patent/ATE4679T1/en
Publication of EP0017029A1 publication Critical patent/EP0017029A1/en
Application granted granted Critical
Publication of EP0017029B1 publication Critical patent/EP0017029B1/en
Expired legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D43/00—Feeding, positioning or storing devices combined with, or arranged in, or specially adapted for use in connection with, apparatus for working or processing sheet metal, metal tubes or metal profiles; Associations therewith of cutting devices
    • B21D43/28—Associations of cutting devices therewith
    • B21D43/287—Devices for handling sheet or strip material
    • 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
    • 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
    • B26D2007/322—Means for performing other operations combined with cutting for conveying or stacking cut product the cut products being sheets, e.g. sheets of paper
    • 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
    • Y10T83/2033—Including means to form or hold pile of product pieces
    • Y10T83/2037—In stacked or packed relation
    • Y10T83/2046—Including means to move stack bodily
    • Y10T83/2048—By movement of stack holder
    • Y10T83/205—By timed relocation of holder along path of stack gscheme-change-itemth
    • 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
    • Y10T83/2198—Tiltable or withdrawable support

Definitions

  • the present invention relates to a device for cutting metal sheets and for stacking the separated metal sheet sections.
  • the device has sheet metal scissors with a sheet metal feed table, on the rear edge of which a fixed lower knife is arranged, which cooperates with an upper knife pivotably mounted between two side stands.
  • a support device which is displaceable in its plane perpendicular to the cutting members is arranged behind the cutting point, and a height-adjustable lifting table is arranged beneath it, which takes up the separated sheet metal sections after the support device has been withdrawn.
  • a stop is provided against which the edge of the sheet to be cut rests so as to determine the width of the sheet section. After the cut, the severed sheet metal strip lies on the support device and then, after retracting it, falls down onto a stacking surface, so that a stack of sheet metal sections is gradually formed.
  • this stack is stacked evenly and orderly in order to avoid subsequent, time-consuming and tedious manual sorting of the stack. This can be achieved by keeping the falling distance of the sheet metal section as small as possible.
  • the height-adjustable lift table serves this purpose.
  • a pallet can be used as a stacking surface, which is arranged on the lifting table.
  • the lifting table is located directly behind the lower knife and is moved into an upper end position at the start of work, so that the surface of the pallet lies below the plane of the sheet feeding table by a certain small amount, depending on the thickness of the sheets to be cut.
  • the lifting table is lowered somewhat in order to bring the surface of the stack formed in this way back some distance below the level of the feed table. This process is repeated until the lifting table has reached its lower end position or the stack has reached its intended height.
  • the lowering of the lifting table can be done either manually or automatically, for example with the help of a light barrier, step by step or continuously. This ensures that the separated sheet metal sections always cover only a small distance in free fall, so that a clean, even stack is formed.
  • this device is characterized in that the lifting table is stationary and longer than the lower knife and extends from the one side stand of the scissors along the cutting point through a recess of the other side stand, which recess is the lifting and lowering of the lifting table allowed, and a stacking and transporting element which can be moved transversely to the sheet metal feed for forming several sheet metal stacks is provided on the lifting table.
  • the surface of the lifting table can be provided with a roller conveyor and a conventional pallet can be placed on this roller conveyor.
  • a pair of guillotine shears is shown, which is provided with a sheet metal feed table 1, on the rear edge of which a fixed lower knife 2 is attached. These parts are stored in a machine frame 3 which is delimited on both sides by side walls 4 and 5.
  • a hold-down device 6 ensures that a metal sheet to be cut cannot move during the cut.
  • the fixed lower knife 2 works together with an upper knife 7 which is mounted in a knife bar 9 which can be pivoted about an axis 8.
  • a displaceable support device 10 is arranged, which is also provided with displaceable stops 11.
  • the support device can consist of a number of parallel rods, which extend away from the lower knife 2 extend. The function of the support device and the stops will be discussed in more detail below.
  • One side wall 5, in FIGS. 2 and 3, is perforated, so that a free passage 12 is formed behind the lower knife 2.
  • the height of the passage 12 corresponds approximately to the height of the feed table 1.
  • a lifting table 13 is arranged behind the cutting point, the design of which is not discussed in detail here. As can be seen from FIGS. 2 and 3, it extends from the continuous side wall 4 across the width of the guillotine shears and through the passage 12 somewhat beyond the shears.
  • On its upper side it is provided with a number of rollers 14 which are rotatable about axes running perpendicular to the lower knife 2.
  • a pallet 15 placed on the roller conveyor thus formed can thus be displaced parallel to the lower knife 2, specifically within the scissors along the knife 2 and out of the scissors, through the passage 12. The pallet 15 is used to hold stacks 16 of separated sheet metal sections.
  • the device works as follows:
  • the lifting table 13 with the pallet 15 attached is raised to an upper end position in which the surface of the pallet 15 lies just below the cutting point or below the support device 10. Then the sheet of metal to be cut is inserted until its edge lies against the preset stop 11.
  • the sheet metal section to be separated is supported by the support device 10. After pressing the hold-down device 6 the cut with the help of the two knives 2 and 7, so that the separated sheet metal section 17 a lies on the support device 10. After the cut, the support device 10 is pulled backwards, the stop 11 remaining in place. As a result, the sheet metal section 17a falls down onto the pallet 15, whereby it only has to cover a short distance in free fall because the pallet 15 has been brought almost to the height of the knife 2 by the lifting table 13. The support device 10 is then brought forward again into its starting position, so that the next sheet metal section can be supported and separated in a corresponding manner.
  • each cut sheet section 17a only has to cover an optimally short distance in free fall, so that a neatly stacked, orderly stack 16 is produced.
  • the second stack 16a is now piled up until it has reached its intended height. Since the lifting table 13 is then again in its lower position, the pallet 15 can again be laterally displaced by the width of the stack 16a plus the thickness of the side wall 5 in order to enable the lifting table 13 to be raised again.
  • several stacks 16 can be stacked next to one another on the pallet 15, whereby it is always ensured that the sheet metal sections cover only a short distance in free fall, so that neat, cleanly layered stacks 16 are created. This ensures optimal use of space on the pallet 15. As soon as the pallet 15 is full, it is pulled out of the guillotine shears on the roller conveyor and can e.g. taken over by a forklift and fed to further processing.
  • Fig. 4 A separated sheet metal section lies on the support device 10 and touches the stop 11 with its rear edge.
  • the pallet 15 is still empty.
  • the support device 10 is now moved backwards in the direction of the arrow, the stop 11 remaining in place.
  • Fig. 5 The support device 10 is in its rear end position and the sheet metal section 17b has fallen onto the pallet 15.
  • Fig. 6 The support device 10 has been moved forward again and the next sheet metal section 17c has been separated. It lies against the stop 11 and rests on the support device 10. This is now moved together with the stop 11 in the direction of the arrow to the rear.
  • Fig. 7 The sheet metal section 17c is now over a free location on the pallet 15, immediately behind the section 17b. The stop 11 is stopped, but the support device 10 is moved further in the direction of the arrow.
  • Fig. 8 The support device 10 has been moved completely to the rear and the section 17c has fallen onto the pallet 15, where it rests behind the section 17b.
  • Fig. 9 support device and stop have been returned to their starting position and the next, separated sheet metal section 17d lies on the support device 10. This is moved together with the stop 11 in the direction of the arrow towards the rear.
  • Fig. 10 As soon as a free place on the pallet 15 is reached, the stop 11 is stopped, but the support device is moved further back.
  • Fig. 11 The support device 10 is in its rear end position and the section 17d has fallen onto the pallet 15, where it lies behind the section 17c.
  • Fig. 12 The support device 10 together with the stop 11 has been brought back to the starting position. The next, separated sheet metal section 17e lies on the support device.
  • Fig. 13 The support device 10 together with the stop 11 has been moved backwards until the section 17e has reached the last position on the pallet 15 that is still free in this stack row. The stop 11 is now stopped.
  • Fig. 14 The support device 10 has been moved further back with the stop 11 stationary and the section 17e has fallen onto the pallet 15, where it rests behind the section 17d.
  • the whole cycle begins anew by placing the next sheet metal section on sheet section 17b already lying on pallet 15, the following sheet metal section on section 17c and so on.
  • the four stacks 16 gradually grow, and the pallet 15, which is placed on the roller conveyor of the lifting table 13, is lowered somewhat.
  • the pallet 15 can be moved laterally out of the guillotine shears, as has already been described above, and the next stack row can be set up in a corresponding manner.
  • This procedure allows an optimal use of the space available on the pallet 15, whereby it is always ensured that cleanly stacked stacks 16 are formed, since the sheet metal sections only have to cover a short distance in free fall.
  • the movements of the support device 10 and stop 11 can be controlled automatically, e.g. under the influence of an electronic NC control unit. If necessary, this can also be used to control the lifting and lowering movement of the lifting table 13.
  • the proposed device not only allows optimum use of space on the pallet 15 with simultaneous, orderly stacking, but also enables fast, safe work, since the subsequent manual rearrangement and straightening of the stack 16 can be completely dispensed with.

Abstract

The apparatus comprises a sheet metal shears at a cutting station which station is provided with a lifting table 13 which is vertically adjustable, is used for cutting off small sections of sheet metal from a sheet and also is used for stacking these sections on a pallet 15. This lifting table extends through a cut-out side wall 5 for the shears and thus permits the shifting of an already piled-up stack 16 away from the shears, and then upwardly so that an adjacent stack 16a may be piled up neatly in spaced apart relation with stacks separated from each other by at least the thickness of the cut-out side wall. The continuing movement of the lifting table 13 after erecting the first stack 16 causes a small drop at the cut-off sections which are placed on the pallet 15, so that an orderly piled-up stack 16a develops. As the height of the stack increases the lifting table is gradually lowered until the predetermined height of the stack is reached.

Description

Die vorliegende Erfindung bezieht sich auf eine Vorrichtung zum Schneiden von Blechtafeln und zum Stapeln der abgetrennten Blechabschnitte. Die Vorrichtung weist eine Blechschere mit einem Blechzuführtisch auf, an dessen hinterer Kante ein festes Untermesser angeordnet ist, welches mit einem zwischen zwei Seitenständern schwenkbar gelagerten Obermesser zusammenarbeitet. In der Ebene des Blechzuführtisches ist hinter der Schneidstelle eine in ihrer Ebene senkrecht zu den Schneidorganen verschiebbare Stützeinrichtung und unter dieser ein höhenverstellbarer Hubtisch angeordnet, welcher nach Rückzug der Stützeinrichtung die abgetrennten Blechabschnitte aufnimmt. In bestimmtem, einstellbarem Abstand hinter dem Untermesser ist ein Anschlag vorgesehen, gegen den die Kante des zu schneidenden Bleches aufliegt, um so die Breite des Blechabschnittes festzulegen. Nach dem Schnitt liegt der abgetrennte Blechstreifen auf der Stützeinrichtung und fällt dann, nach Rückzug derselben nach unten auf eine Stapelfläche, so dass nach und nach ein Stapel von Blechabschnitten gebildet wird.The present invention relates to a device for cutting metal sheets and for stacking the separated metal sheet sections. The device has sheet metal scissors with a sheet metal feed table, on the rear edge of which a fixed lower knife is arranged, which cooperates with an upper knife pivotably mounted between two side stands. In the plane of the sheet metal feed table, a support device which is displaceable in its plane perpendicular to the cutting members is arranged behind the cutting point, and a height-adjustable lifting table is arranged beneath it, which takes up the separated sheet metal sections after the support device has been withdrawn. At a certain, adjustable distance behind the lower knife, a stop is provided against which the edge of the sheet to be cut rests so as to determine the width of the sheet section. After the cut, the severed sheet metal strip lies on the support device and then, after retracting it, falls down onto a stacking surface, so that a stack of sheet metal sections is gradually formed.

Es ist natürlich wünschenswert, dass dieser Stapel gleichmässig und geordnet aufgeschichtet ist, um ein nachträgliches, zeitraubendes und mühsames Ordnen des Stapels von Hand zu vermeiden. Dies lässt sich dadurch erreichen, dass man die Fallstrecke des Blechabschnittes möglichst klein hält. Dazu dient der höhenverstellbare Hubtisch. In der Praxis kann als Stapelfläche eine Palette verwendet werden, welche auf dem Hubtisch angeordnet ist. Der Hubtisch befindet sich unmittelbar hinter dem Untermesser und wird bei Arbeitsbeginn in eine obere Endstellung gefahren, so dass die Oberfläche der Palette um einen bestimmten, kleinen Betrag, abhängig von der Dicke der zu schneidenden Bleche, unterhalb der Ebene des Blechzuführtisches liegt. Nachdem einige Blechstreifen abgeschnitten und auf der Palette abgestapelt sind, wird der Hubtisch etwas abgesenkt, um die Oberfläche des so gebildeten Stapels wieder in einigem Abstand unter die Ebene des Zuführtisches zu bringen. Dieser Vorgang wiederholt sich so lange, bis der Hubtisch seine untere Endstellung bzw. der Stapel seine vorgesehene Höhe erreicht hat. Die Absenkung des Hubtisches kann dabei entweder von Hand oder automatisch gesteuert, etwa mit Hilfe einer Lichtschranke, schrittweise oder kontinuierlich erfolgen. Dadurch wird sichergestellt, dass die abgetrennten Blechabschnitte immer nur eine geringe Strecke in freiem Fall zurücklegen, so dass ein sauberer, gleichmässiger Stapel gebildet wird.It is of course desirable that this stack is stacked evenly and orderly in order to avoid subsequent, time-consuming and tedious manual sorting of the stack. This can be achieved by keeping the falling distance of the sheet metal section as small as possible. The height-adjustable lift table serves this purpose. In practice, a pallet can be used as a stacking surface, which is arranged on the lifting table. The lifting table is located directly behind the lower knife and is moved into an upper end position at the start of work, so that the surface of the pallet lies below the plane of the sheet feeding table by a certain small amount, depending on the thickness of the sheets to be cut. After a few metal strips have been cut off and stacked on the pallet, the lifting table is lowered somewhat in order to bring the surface of the stack formed in this way back some distance below the level of the feed table. This process is repeated until the lifting table has reached its lower end position or the stack has reached its intended height. The lowering of the lifting table can be done either manually or automatically, for example with the help of a light barrier, step by step or continuously. This ensures that the separated sheet metal sections always cover only a small distance in free fall, so that a clean, even stack is formed.

Obwohl sich eine solche Anordnung im Prinzip sehr gut bewährt hat, ist doch ein bedeutsamer Nachteil vorhanden, wenn kleine Blechabschnitte hergestellt werden. Ein solcher Stapel von kleinen Abschnitten nimmt unter Umständen nur einen geringen Teil der Oberfläche einer Palette in Anspruch, wobei es aber erwünscht wäre, mehrere soleher Stapel nebeneinander anzuordnen. Sobald aber der erste Stapel fertiggestellt ist, kann der Hubtisch nicht mehr hochgefahren werden, da der vorhandene Stapel an der Stützeinrichtung anstossen würde. Man war also bisher gezwungen, entweder die Kapazität der Palette ungenutzt zu lassen, indem pro Palette nur ein Stapel gebildet wird, oder in Kauf zu nehmen, dass ein zweiter, daneben errichteter Stapel unordentlich ausfällt, da die abgetrennten Blechabschnitte eine relativ grosse Strecke in freiem Fall zurücklegen müssen.Although such an arrangement has proven itself very well in principle, there is a significant disadvantage when small sheet metal sections are produced. Such a stack of small sections may take up only a small part of the surface of a pallet, but it would be desirable to have several sol rather stack them side by side. However, as soon as the first stack is completed, the lifting table can no longer be raised, since the existing stack would hit the support device. So far, one has been forced to either leave the capacity of the pallet unused by forming only one stack per pallet, or to accept that a second stack, which has been erected next to it, turns out to be untidy, since the separated sheet metal sections leave a relatively large distance in the open Have to cover the case.

Es ist eine Aufgabe der vorliegenden Erfindung, diesen Nachteil zu vermeiden und eine Vorrichtung vorzuschlagen, mit der mehrere sauber geschichteter Stapel von abgetrennten Blechabschnitten nebeneinander errichtet werden können.It is an object of the present invention to avoid this disadvantage and to propose a device with which several cleanly stacked stacks of separated sheet metal sections can be erected next to one another.

Es wird dabei von einer Vorrichtung eingangs erwähnter Art ausgegangen. Gemäss der Erfindung zeichnet sich diese Vorrichtung dadurch aus, dass der Hubtisch stationär und länger als das Untermesser ausgebildet ist und sich von dem einen Seitenständer der Schere aus entlang der Schneidstelle durch eine Ausnehmung des anderen Seitenständers hindurch erstreckt, welche Ausnehmung das Heben und Senken des Hubtisches erlaubt, und wobei am Hubtisch ein quer zum Blechvorschub verschiebbares Stapel- und Transportorgan zum Bilden von mehreren Blechstapeln vorhanden ist.A device of the type mentioned at the outset is assumed. According to the invention, this device is characterized in that the lifting table is stationary and longer than the lower knife and extends from the one side stand of the scissors along the cutting point through a recess of the other side stand, which recess is the lifting and lowering of the lifting table allowed, and a stacking and transporting element which can be moved transversely to the sheet metal feed for forming several sheet metal stacks is provided on the lifting table.

Nach Bilden des ersten Stapels wird dieser bei gesenktem Hubtisch aus dem Bereich der Stützeinrichtung in eine Stellung ausserhalb des Seitenständers geführt, so dass der Hubtisch samt Stapel und Transportorgan mit seiner unbelegten Fläche zur Aufnahme eines neuen Stapels bis zur Stützeinrichtung gehoben werden kann. Die Oberfläche des Hubtisches kann mit einer Rollenbahn versehen sein und auf diese Rollenbahn kann eine konventionelle Palette gestellt werden.After the first stack has been formed, it is guided from the area of the support device into a position outside the side stand with the lifting table lowered, so that the lifting table together with the stack and transport element with its unoccupied surface for receiving a new stack can be lifted to the support device. The surface of the lifting table can be provided with a roller conveyor and a conventional pallet can be placed on this roller conveyor.

Im folgenden wird ein Ausführungsbeispiel der Vorrichtung gemäss der Erfindung, unter Bezugnahme auf die beiliegenden Zeichnungen näher beschrieben. In den Zeichnungen zeigen:

  • Fig. 1 Eine schematische, teilweise geschnittene Seitenansicht,
  • Fig. 2 + 3 schematische Teilansichten von hinten, und
  • Fig. 4 - 14 die verschiedenen Phasen des Ablegens der abgetrennten Blechabschnitte.
In the following an embodiment of the device according to the invention will be described in more detail with reference to the accompanying drawings. The drawings show:
  • 1 is a schematic, partially sectioned side view,
  • Fig. 2 + 3 schematic partial views from behind, and
  • Fig. 4 - 14, the different phases of depositing the separated sheet metal sections.

In Fig. 1 ist eine Tafelschere dargestellt, die mit einem Blechzuführtisch 1 versehen ist, an dessen hinterer Kante ein festes Untermesser 2 angebracht ist. Diese Teile sind in einem Maschinengestell 3 gelagert, das beidseitig durch Seitenwände 4 und 5 begrenzt ist. Ein Niederhalter 6 sorgt dafür, dass sich eine zu schneidende Blechtafel während des Schnittes nicht verschieben kann. Das feste Untermesser 2 arbeitet mit einem Obermesser 7 zusammen, das in einem um eine Achse 8 schwenkbaren Messerbalken 9 gelagert ist. Hinter dem Untermesser 2, in der Ebene des Zuführtisches 1, ist eine verschiebbare Stützvorrichtung 10 angeordnet, die mit ebenfalls verschiebbaren Anschlägen 11 versehen ist.In Fig. 1, a pair of guillotine shears is shown, which is provided with a sheet metal feed table 1, on the rear edge of which a fixed lower knife 2 is attached. These parts are stored in a machine frame 3 which is delimited on both sides by side walls 4 and 5. A hold-down device 6 ensures that a metal sheet to be cut cannot move during the cut. The fixed lower knife 2 works together with an upper knife 7 which is mounted in a knife bar 9 which can be pivoted about an axis 8. Behind the lower knife 2, in the plane of the feed table 1, a displaceable support device 10 is arranged, which is also provided with displaceable stops 11.

Die Stützvorrichtung kann aus einer Anzahl paralleler Stäbe bestehen, die sich vom Untermesser 2 weg gegen hinten erstrecken. Auf die Funktion der Stützeinrichtung wie auch der Anschläge wird weiter unten noch näher eingegangen.The support device can consist of a number of parallel rods, which extend away from the lower knife 2 extend. The function of the support device and the stops will be discussed in more detail below.

Die eine Seitenwand 5, in Fig. 2 und 3, ist durchbrochen, so dass hinter dem Untermesser 2 ein freier Durchgang 12 gebildet ist. Die Höhe des Durchganges 12 entspricht etwa der Höhe des Zuführtisches 1. Hinter der Schneidstelle ist ein Hubtisch 13 angeordnet, auf dessen Ausbildung im einzelnen hier nicht näher eingegangen wird. Wie aus den Fig. 2 und 3 ersichtlich, erstreckt er sich von der durchgehenden Seitenwand 4 über die Breite der Tafelschere und durch den Durchgang 12 hindurch noch etwas über die Schere hinaus. An seiner Oberseite ist er mit einer Anzahl Rollen 14 versehen, die um senkrecht zum Untermesser 2 verlaufende Achsen drehbar sind. Eine auf die so gebildete Rollenbahn aufgesetzte Palette 15 ist somit parallel zum Untermesser 2 verschiebbar, und zwar innerhalb der Schere entlang des Messers 2 und aus der Schere heraus, durch den Durchgang 12 hindurch. Die Palette 15 dient zur Aufnahme von Stapeln 16 abgetrennter Blechabschnitte.One side wall 5, in FIGS. 2 and 3, is perforated, so that a free passage 12 is formed behind the lower knife 2. The height of the passage 12 corresponds approximately to the height of the feed table 1. A lifting table 13 is arranged behind the cutting point, the design of which is not discussed in detail here. As can be seen from FIGS. 2 and 3, it extends from the continuous side wall 4 across the width of the guillotine shears and through the passage 12 somewhat beyond the shears. On its upper side it is provided with a number of rollers 14 which are rotatable about axes running perpendicular to the lower knife 2. A pallet 15 placed on the roller conveyor thus formed can thus be displaced parallel to the lower knife 2, specifically within the scissors along the knife 2 and out of the scissors, through the passage 12. The pallet 15 is used to hold stacks 16 of separated sheet metal sections.

Die Arbeitsweise der Vorrichtung ist wie folgt:The device works as follows:

Der Hubtisch 13 mit aufgesetzter Palette 15 wird in eine obere Endstellung gehoben, bei der die Oberfläche der Palette 15 knapp unterhalb der Schneidstelle bzw. unterhalb der Stützvorrichtung 10 liegt. Dann wird die zu schneidende Blechtafel eingeführt, bis ihre Kante gegen den voreingestellten Anschlag 11 anliegt. Der abzutrennende Blechabschnitt wird dabei von der Stützeinrichtung 10 abgestützt. Nach Betätigung des Niederhalters 6 erfolgt der Schnitt mit Hilfe der beiden Messer 2 und 7, so dass der abgetrennte Blechabschnitt 17a auf der Stützeinrichtung 10 liegt. Nach dem Schnitt wird die Stützeinrichtung 10 nach hinten gezogen, wobei der Anschlag 11 an Ort und Stelle verbleibt. Dadurch fällt der Blechabschnitt 17a hinunter auf die Palette 15, wobei er nur eine kurze Strecke in freiem Fall zurücklegen muss, weil die Palette 15 durch den Hubtisch 13 nahezu auf die Höhe des Messers 2 gebracht worden ist. Anschliessend wird die Stützeinrichtung 10 wieder nach vorne in ihre Ausgangsstellung gebracht, so dass der nächste Blechabschnitt in entsprechender Weise gestützt und abgetrennt werden kann.The lifting table 13 with the pallet 15 attached is raised to an upper end position in which the surface of the pallet 15 lies just below the cutting point or below the support device 10. Then the sheet of metal to be cut is inserted until its edge lies against the preset stop 11. The sheet metal section to be separated is supported by the support device 10. After pressing the hold-down device 6 the cut with the help of the two knives 2 and 7, so that the separated sheet metal section 17 a lies on the support device 10. After the cut, the support device 10 is pulled backwards, the stop 11 remaining in place. As a result, the sheet metal section 17a falls down onto the pallet 15, whereby it only has to cover a short distance in free fall because the pallet 15 has been brought almost to the height of the knife 2 by the lifting table 13. The support device 10 is then brought forward again into its starting position, so that the next sheet metal section can be supported and separated in a corresponding manner.

Nach einigen Schnitten, wenn der Stapel 16 eine gewisse Höhe erreicht hat, muss der Hubtisch 13 und damit die Palette 15 etwas abgesenkt werden. Dies kann manuell oder automatisch gesteuert erfolgen, z.B. mit Hilfe einer Lichtschranke, die die Höhe des Stapels 16 überwacht und bei Erreichen eines Grenzwertes das Absenken des Hubtisches 13 bewirkt. Auf diese Weise muss jeder abgetrennte Blechabschnitt 17a nur eine optimal kurze Wegstrecke in freiem Fall zurücklegen, so dass ein sauber geschichteter, ordentlicher Stapel 16 entsteht.After a few cuts, when the stack 16 has reached a certain height, the lifting table 13 and thus the pallet 15 must be lowered somewhat. This can be done manually or automatically, e.g. with the help of a light barrier that monitors the height of the stack 16 and causes the lifting table 13 to be lowered when a limit value is reached. In this way, each cut sheet section 17a only has to cover an optimally short distance in free fall, so that a neatly stacked, orderly stack 16 is produced.

Sobald der Hubtisch 13 seine untere Endstellung ereicht hat bzw. wenn der Stapel 16 in vorgesehener Höhe aufgeschichtet ist, wird die Palette 15 auf den Rollen 14 aus der Tafelschere heraus verschoben, wonach der Hubtisch 13 wieder in seine obere Endstellung verfahren werden kann. Diese Situation ist in Fig. 3 dargestellt. Es kann nun neben dem Stapel 16 ein weiterer Stapel 16a aufgeschichtet werden, wobei der Abstand zwischen den beiden Stapeln 16 und 16a durch die Dicke der Seitenwand 5 nach unten begrenzt ist. Das Hochfahren des Hubtisches 13 ist dabei ohne weiteres möglich, da ausserhalb der Schere gegen oben genügend freier Raum zur Verfügung steht, so dass der bereits aufgeschichtete Stapel 16 nirgend anstossen kann.As soon as the lifting table 13 has reached its lower end position or when the stack 16 is piled up at the intended height, the pallet 15 is moved out of the guillotine shears on the rollers 14, after which the lifting table 13 can be moved back into its upper end position. This situation is shown in Fig. 3. A further stack 16a can now be stacked up next to the stack 16, the distance between the two stacks 16 and 16a being downward due to the thickness of the side wall 5 is limited. The lifting of the lifting table 13 is easily possible, since outside of the scissors there is enough free space at the top so that the stack 16 which has already been piled up cannot touch anything.

Auf entsprechende Weise wird nun der zweite Stapel 16a aufgeschichtet, bis er seine vorgesehene Höhe erreicht hat. Da sich der Hubtisch 13 dann wieder in seiner unteren Stellung befindet, kann die Palette 15 wieder um die Breite des Stapels 16a plus die Dicke der Seitenwand 5 seitlich verschoben werden, um ein erneutes Hochfahren des Hubtisches 13 zu ermöglichen. Je nach Breite der abgetrennten Blechabschnitte können so mehrere Stapel 16 nebeneinander auf die Palette 15 aufgeschichtet werden, wobei stets gewährleistet ist, dass die Blechabschnitte nur eine kurze Strecke in freiem Fall zurücklegen, so dass ordentliche, sauber geschichtete Stapel 16 entstehen. Eine optimale Platzausnutzung auf der Palette 15 ist so sichergestellt. Sobald die Palette 15 voll ist, wird sie auf der Rollenbahn ganz aus der Tafelschere herausgezogen und kann z.B. mittels eines Hubstaplers übernommen und der weiteren Verarbeitung zugeführt werden.In a corresponding manner, the second stack 16a is now piled up until it has reached its intended height. Since the lifting table 13 is then again in its lower position, the pallet 15 can again be laterally displaced by the width of the stack 16a plus the thickness of the side wall 5 in order to enable the lifting table 13 to be raised again. Depending on the width of the separated sheet metal sections, several stacks 16 can be stacked next to one another on the pallet 15, whereby it is always ensured that the sheet metal sections cover only a short distance in free fall, so that neat, cleanly layered stacks 16 are created. This ensures optimal use of space on the pallet 15. As soon as the pallet 15 is full, it is pulled out of the guillotine shears on the roller conveyor and can e.g. taken over by a forklift and fed to further processing.

Bei kleinen Blechabschnitten ist es zweckmässig und im Sinne einer optimalen Ausnutzung der Palette erforderlich, nicht nur in Längserstreckung des Messers 2 mehrere Stapel 16, 16a usw. nebeneinander anzuordnen, sondern auch einige Stapel hintereinander aufzuschichten. Dieser Ablauf ist in Fig. 4 - 14 skizziert und kann wie folgt erläutert werden: -In the case of small sheet metal sections, it is expedient and in the sense of optimal utilization of the pallet not only to arrange a plurality of stacks 16, 16a etc. next to one another in the longitudinal extension of the knife 2, but also to stack a few stacks one behind the other. This process is outlined in FIGS. 4 to 14 and can be explained as follows:

Fig. 4: Ein abgetrennter Blechabschnitt liegt auf der Stützeinrichtung 10 auf und berührt mit seiner Hinterkante den Anschlag 11. Die Palette 15 ist noch leer. Die Stützeinrichtung 10 wird nun in Pfeilrichtung nach hinten verschoben, wobei der Anschlag 11 an Ort und Stelle verbleibt.Fig. 4: A separated sheet metal section lies on the support device 10 and touches the stop 11 with its rear edge. The pallet 15 is still empty. The support device 10 is now moved backwards in the direction of the arrow, the stop 11 remaining in place.

Fig. 5: Die Stützeinrichtung 10 ist in ihrer hinteren Endstellung und der Blechabschnitt 17b ist auf die Palette 15 hinuntergefallen.Fig. 5: The support device 10 is in its rear end position and the sheet metal section 17b has fallen onto the pallet 15.

Fig. 6: Die Stützeinrichtung 10 wurde wieder nach vorne verschoben und der nächste Blechabschnitt 17c ist abgetrennt worden. Er liegt gegen den Anschlag 11 an und ruht auf der Stützeinrichtung 10. Diese wird nun mitsamt dem Anschlag 11 in Pfeilrichtung nach hinten verschoben.Fig. 6: The support device 10 has been moved forward again and the next sheet metal section 17c has been separated. It lies against the stop 11 and rests on the support device 10. This is now moved together with the stop 11 in the direction of the arrow to the rear.

Fig. 7: Der Blechabschnitt 17c liegt nun über einer freien Stelle auf der Palette 15, unmittelbar hinter dem Abschnitt 17b. Der Anschlag 11 wird angehalten, die Stützeinrichtung 10 jedoch in Pfeilrichtung weiterbewegt.Fig. 7: The sheet metal section 17c is now over a free location on the pallet 15, immediately behind the section 17b. The stop 11 is stopped, but the support device 10 is moved further in the direction of the arrow.

Fig. 8: Die Stützeinrichtung 10 ist ganz nach hinten verschoben und der Abschnitt 17c ist auf die Palette 15 hinuntergefallen, wo er hinter dem Abschnitt 17b ruht.Fig. 8: The support device 10 has been moved completely to the rear and the section 17c has fallen onto the pallet 15, where it rests behind the section 17b.

Fig. 9: Stützeinrichtung und Anschlag sind wieder in ihre Ausgangsstellung gebracht worden und der nächste, abgetrennte Blechabschnitt 17d liegt auf der Stützeinrichtung 10 auf. Diese wird mitsamt dem Anschlag 11 in Pfeilrichtung gegen hinten bewegt.Fig. 9: support device and stop have been returned to their starting position and the next, separated sheet metal section 17d lies on the support device 10. This is moved together with the stop 11 in the direction of the arrow towards the rear.

Fig. 10: Sobald eine freie Stelle auf der Palette 15 erreicht ist, wird der Anschlag 11 angehalten, die Stützeinrichtung jedoch weiter nach hinten bewegt.Fig. 10: As soon as a free place on the pallet 15 is reached, the stop 11 is stopped, but the support device is moved further back.

Fig. 11: Die Stützeinrichtung 10 ist in ihrer hinteren Endstellung und der Abschnitt 17d ist auf die Palette 15 hinuntergefallen, wo er hinter dem Abschnitt 17c liegt.Fig. 11: The support device 10 is in its rear end position and the section 17d has fallen onto the pallet 15, where it lies behind the section 17c.

Fig. 12: Die Stützeinrichtung 10 samt dem Anschlag 11 ist wieder in die Ausgangslage gebracht worden. Der nächste, abgetrennte Blechabschnitt 17e liegt auf der Stützeinrichtung auf.Fig. 12: The support device 10 together with the stop 11 has been brought back to the starting position. The next, separated sheet metal section 17e lies on the support device.

Fig. 13: Die Stützeinrichtung 10 mitsamt dem Anschlag 11 ist nach hinten verschoben worden, bis der Abschnitt 17e über der letzten, in dieser Stapelreihe noch freien Stelle auf der Palette 15 angelangt ist. Der Anschlag 11 wird nun angehalten.Fig. 13: The support device 10 together with the stop 11 has been moved backwards until the section 17e has reached the last position on the pallet 15 that is still free in this stack row. The stop 11 is now stopped.

Fig. 14: Die Stützeinrichtung 10 ist bei stillstehendem Anschlag 11 weiter zurückbewegt worden und der Abschnitt 17e ist auf die Palette 15 gefallen, wo er hinter dem Abschnitt 17d ruht.Fig. 14: The support device 10 has been moved further back with the stop 11 stationary and the section 17e has fallen onto the pallet 15, where it rests behind the section 17d.

Nun beginnt der ganze Zyklus von neuem, indem der nächstfolgende Blechabschnitt auf den bereits auf der Palette 15 liegenden Blechabschnitt 17b, der folgende Blechabschnitt auf den Abschnitt 17c usw. abgelegt wird. Nach und nach wachsen die vier Stapel l6;und die Palette 15, die auf die Rollenbahn des Hubtisches 13 aufgesetzt ist, wird etwas abgesenkt. Durch das abwechselnde Abwerfen der abgetrennten Blechabschnitte auf die hintereinanderliegenden vier Stapel 16 wachsen diese gleichzeitig an, bis sie ihre vorgesehene Höhe erreicht haben. Nun kann die Palette 15 etwas aus der Tafelschere heraus seitlich verschoben werden, wie dies vorstehend schon beschrieben wurde, und die nächste Stapelreihe kann in entsprechender Weise errichtet werden.Now the whole cycle begins anew by placing the next sheet metal section on sheet section 17b already lying on pallet 15, the following sheet metal section on section 17c and so on. The four stacks 16 gradually grow, and the pallet 15, which is placed on the roller conveyor of the lifting table 13, is lowered somewhat. By alternately throwing off the separated sheet metal sections onto the one behind the other the four stacks 16 grow at the same time until they have reached their intended height. Now the pallet 15 can be moved laterally out of the guillotine shears, as has already been described above, and the next stack row can be set up in a corresponding manner.

Dieses Vorgehen erlaubt eine optimale Ausnutzung des auf der Palette 15 zur Verfügung stehenden Platzes, wobei stets sichergestellt ist, dass sauber geschichtete Stapel 16 entstehen, da die Blechabschnitte nur eine kurze Wegstrecke in freiem Fall zurückzulegen haben.This procedure allows an optimal use of the space available on the pallet 15, whereby it is always ensured that cleanly stacked stacks 16 are formed, since the sheet metal sections only have to cover a short distance in free fall.

Selbstverständlich können die Bewegungsabläufe von Stützeinrichtung 10 und Anschlag 11 automatisch gesteuert werden, z.B. unter Einfluss eines elektronischen NC-Steuergerätes. Dies kann gegebenenfalls auch zur Steuerung der Heb- und Senkbewegung des Hubtisches 13 herangezogen werden.Of course, the movements of the support device 10 and stop 11 can be controlled automatically, e.g. under the influence of an electronic NC control unit. If necessary, this can also be used to control the lifting and lowering movement of the lifting table 13.

Die vorgeschlagene Vorrichtung erlaubt nicht nur eine optimale Platzausnutzung auf der Palette 15 bei gleichzeitiger, ordentlicher Stapelung, sondern ermöglicht auch ein schnelles, gefahrloses Arbeiten, da das nachträgliche, manuelle Umschichten und Richten der Stapel 16 völlig entfallen kann.The proposed device not only allows optimum use of space on the pallet 15 with simultaneous, orderly stacking, but also enables fast, safe work, since the subsequent manual rearrangement and straightening of the stack 16 can be completely dispensed with.

Claims (4)

1) Vorrichtung zum Schneiden von Blechtafeln und zum Stapeln der abgetrennten Blechabschnitte mit Hilfe einer Blechschere, die einen Rlechzuführtisch aufweist, an dessen hinterer Kante ein festes Untermesser angeordnet ist,welches mit einem zwischen zwei Seitenständern schwenkbar gelagerten Obermesser zusammenarbeitet, wobei in der Ebene des Blechzuführtisches hinter der Schneidstelle eine in ihrer Ebene senkrecht zu den Schneidorganen verschiebbare Stützeinrichtung und unter dieser ein höhenverstellbarer Hubtisch angeordnet ist, welcher nach Rückzug der Stützeinrichtung die abgetrennten Blechabschnitte aufnimmt,
dadurch gekennzeichnet,
dass der Hubtisch (13) stationär und länger als das Untermesser (2) ausgebildet ist und sich von dem einen Seitenständer (4) der Schere aus entlang der Schneidstelle durch eine Ausnehmung (12) des anderen Seitenständers (5) hindurch erstreckt, welche Ausnehmung (12) das Heben und Senken des Hubtisches (13) erlaubt, und wobei am Hubtisch (13) ein quer zum Blechvorschub verschiebbares Stapel- und Transportorgan (15) zum Bilden von mehreren Blechstapeln (16) vorhanden ist, in der Weise, dass nach Bilden des ersten Stapels (16a) dieser bei gesenktem Hubtisch (13) aus dem Bereich der Stützeinrichtung (10) in eine Stellung ausserhalb des Seitenständers (5) geführt wird, so dass der Hubtisch (13) samt Stapel- und Transportorgan (15) mit seiner unbelegten Fläche zur Aufnahme eines neuen Stapels bis zur Stützeinrichtung (10) gehoben werden kann.1) Device for cutting metal sheets and for stacking the separated sheet metal sections with the help of a pair of sheet metal shears, which has a sheet feeding table, on the rear edge of which a fixed lower knife is arranged, which cooperates with an upper knife pivotably mounted between two side stands, in the plane of the sheet feeding table Behind the cutting point, a support device which is displaceable in its plane perpendicular to the cutting members and below which a height-adjustable lifting table is arranged, which receives the separated sheet metal sections after the support device has been withdrawn,
characterized,
that the lifting table (13) is stationary and longer than the lower knife (2) and extends from the one side stand (4) of the scissors along the cutting point through a recess (12) of the other side stand (5), which recess ( 12) the lifting and lowering of the lifting table (13) is permitted, and wherein the lifting table (13) has a stacking and transporting member (15) which can be moved transversely to the sheet metal feed for forming a plurality of sheet metal stacks (16), in such a way that after forming of the first stack (16a), this is guided with the lifting table (13) lowered from the area of the support device (10) into a position outside the side stand (5), so that the lifting table (13) together with the stacking and transporting element (15) with it unoccupied area for receiving a new stack can be lifted up to the support device (10). 2) Vorrichtung nach Anspruch 2,
dadurch gekennzeichnet,
dass die Oberfläche des Hubtisches (13) mit Rollen (14) versehen ist, die um senkrecht zum Untermesser (2) verlaufende Achsen rotieren.2) Device according to claim 2,
characterized,
that the surface of the lifting table (13) is provided with rollers (14) which rotate about axes perpendicular to the lower knife (2). 3) Vorrichtung nach Ansprüchen 1 und 2,
dadurch gekennzeichnet, dass zur Aufnahme der Stapel (16) eine auf die Rollen aufgesetzte Unterlage, beispielsweise eine Palette (15) vorhanden ist.3) Device according to claims 1 and 2,
characterized in that a support, for example a pallet (15), is placed on the rollers for receiving the stacks (16). 4) Vorrichtung nach Anspruch 1,
dadurch gekennzeichnet ,
dass Anschläge (11) vorhanden sind, die sowohl zusammen mit der Stützeinrichtung (10) als auch unabhängig davon gegenüber der Schneidstelle verschiebbar sind.4) Device according to claim 1,
characterized ,
that stops (11) are present which can be displaced both with the support device (10) and independently of the cutting point.
EP19800101263 1979-03-15 1980-03-12 Device for cutting sheet metal and stacking cut-off blanks Expired EP0017029B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT80101263T ATE4679T1 (en) 1979-03-15 1980-03-12 DEVICE FOR CUTTING SHEET METAL SHEET AND STACKING THE SEPARATED SHEETS SHEET.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE2910197 1979-03-15
DE2910197A DE2910197C3 (en) 1979-03-15 1979-03-15 Device for cutting sheet metal and stacking the cut sheet metal sections

Publications (2)

Publication Number Publication Date
EP0017029A1 true EP0017029A1 (en) 1980-10-15
EP0017029B1 EP0017029B1 (en) 1983-09-21

Family

ID=6065486

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19800101263 Expired EP0017029B1 (en) 1979-03-15 1980-03-12 Device for cutting sheet metal and stacking cut-off blanks

Country Status (5)

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US (1) US4300420A (en)
EP (1) EP0017029B1 (en)
AT (1) ATE4679T1 (en)
DE (1) DE2910197C3 (en)
IT (1) IT8021179V0 (en)

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EP0150809A2 (en) * 1984-01-30 1985-08-07 Hämmerle AG Apparatus for removing and stacking cuttings of sheet metal falling behind the cutting line of a plate-shearing machine

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DE3101911A1 (en) * 1981-01-22 1982-09-02 Karl Mohr "DEVICE FOR CUTTING PAPER, CARDBOARD OR THE LIKE .."
US4578930A (en) * 1984-05-02 1986-04-01 Nabisco Brands, Inc. Yeast cake loading device
DE3838270A1 (en) * 1988-11-11 1990-05-17 Krupp Maschinentechnik METHOD FOR PRODUCING MAT PACKAGES FROM TACKY MATERIAL SHEETS AND DEVICE FOR IMPLEMENTING THE METHOD
DE4022350A1 (en) * 1990-07-13 1992-01-16 Bielomatik Leuze & Co CONVEYOR DEVICE FOR LAYER UNITS
GB9611465D0 (en) * 1996-06-01 1996-08-07 Thurne Eng Co Ltd Slicing of products
KR20010030614A (en) * 1997-09-18 2001-04-16 제임스 제이. 코베트 Dunnage pad production and packaging system
FR2771376B1 (en) * 1997-11-26 2000-01-14 Pechiney Rhenalu AUTOMATIC PACKAGING PROCESS AND LINE FOR PARALLELEPIPEDIC PACKAGES
DE60005641T2 (en) 1999-01-11 2004-04-29 Amada Co., Ltd., Isehara Sheet metal processing systems and method for transferring a workpiece in one of these systems
AU2002232743A1 (en) 2000-10-20 2002-08-28 Ranpak Corp. Cushioning conversion system with dunnage pad transfer mechanism
CN115892882B (en) * 2022-09-19 2023-06-16 鲁变电工股份有限公司 Integration method of silicon steel sheet for transformer core

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US4040318A (en) * 1976-05-14 1977-08-09 Boris Anatolievich Makeev Transfer machine for cutting rolled sheet metal
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EP0150809A2 (en) * 1984-01-30 1985-08-07 Hämmerle AG Apparatus for removing and stacking cuttings of sheet metal falling behind the cutting line of a plate-shearing machine
EP0150809A3 (en) * 1984-01-30 1987-05-06 Hammerle Ag Apparatus for removing and stacking cuttings of sheet metal falling behind the cutting line of a plate-shearing machine

Also Published As

Publication number Publication date
IT8021179V0 (en) 1980-03-14
ATE4679T1 (en) 1983-10-15
US4300420A (en) 1981-11-17
DE2910197C3 (en) 1981-08-20
DE2910197A1 (en) 1980-09-25
EP0017029B1 (en) 1983-09-21
DE2910197B2 (en) 1981-01-22

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