EP0026755B1 - Feeding device for sheet metal working machines - Google Patents

Feeding device for sheet metal working machines Download PDF

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Publication number
EP0026755B1
EP0026755B1 EP19800890090 EP80890090A EP0026755B1 EP 0026755 B1 EP0026755 B1 EP 0026755B1 EP 19800890090 EP19800890090 EP 19800890090 EP 80890090 A EP80890090 A EP 80890090A EP 0026755 B1 EP0026755 B1 EP 0026755B1
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EP
European Patent Office
Prior art keywords
conveyor
feeding device
supports
sheet metal
conveying
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Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
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EP19800890090
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German (de)
French (fr)
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EP0026755A1 (en
Inventor
Ernst Pum
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Voestalpine AG
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Voestalpine AG
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Publication of EP0026755A1 publication Critical patent/EP0026755A1/en
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21DWORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D43/00Feeding, 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
    • B21D43/28Associations of cutting devices therewith
    • B21D43/287Devices for handling sheet or strip material
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21DWORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D43/00Feeding, 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
    • B21D43/003Positioning devices

Definitions

  • the invention relates to a feeder device for sheet metal working machines, consisting of two conveying devices having mutually perpendicular conveying directions, one of which forms free spaces for the passage of lifting and lowering supports of the other advancing and retracting conveying device.
  • the feed devices In order to enable the sheets to be aligned both with respect to their longitudinal and transverse axes, the feed devices generally have two roller tables with two mutually perpendicular conveying directions, one of the roller tables being mounted so that it can be raised and lowered. This means that one of the two roller tables can be used as required, so that the sheet to be processed can be moved lengthways and crossways.
  • a prerequisite for the correct alignment of these known feeder devices is, however, that the metal sheets do not reach the feeder device at an angle, since it is not possible to rotate the metal sheets around a sheet-normal axis with the aid of the feeder device.
  • a minimum size for the conveyable sheets is determined by the distance between the rollers of a roller table, so that the known feeder devices of this type cannot meet all requirements.
  • the invention is therefore based on the object of improving a feeder device for sheet metal working machines of the type described at the outset so that the sheets to be processed can be handled in a simple manner without being restricted to a minimum size.
  • inclined positions should also be corrected and also inclined positions of the sheets can be brought about consciously.
  • the invention solves this problem in that the one conveyor consists of a forward and backward movable conveyor table with passage openings for the raised and lowered supports, which can be moved back and forth across the conveyor table.
  • the sheet to be conveyed is placed on the conveying table and moved with it by a predetermined distance. Then the sheet metal is lifted off the conveyor table with the supports reaching through the passage openings of the conveyor table, so that the conveyor table can be moved back around the conveyor path and can be moved forward again after the supports have been lowered.
  • the sheet to be machined is therefore conveyed step by step, alternately lying on the conveyor table and the supports. Since there is no sliding movement between the sheet metal on the one hand and the conveyor table and the supports on the other hand during this movement sequence, the sheet can also be conveyed very gently and precisely.
  • the conveying table For conveying sheet metal in the other conveying direction, the conveying table is used as a stationary rest, while the supports carry out the conveying movement after being lifted over the conveying table and are returned in the lowered state. Since the conveying movements of the conveying table and supports can be carried out while the other conveying device is being put back, the sheet metal can be conveyed diagonally to a certain extent, the conveying direction depending on the respective size of the conveying steps of the two conveying devices.
  • the conveyor table can be pivoted in a further embodiment of the invention on the side facing away from the sheet metal processing machine about a transverse to its conveying direction, table-parallel axis, so that the sheet by swiveling the conveyor table can be placed on the table of the sheet metal working machine without hindrance. It is advantageous if the conveyor table is not itself pivotally mounted, but is guided on pivoting roller beams. As a result of this measure, a swivel bearing which can be moved along with the conveyor table is unnecessary.
  • the conveyor table can be driven in different ways, particularly simple, controllable conditions result from cylinders which can be acted on from both sides as a displacement drive.
  • Such cylinders can also be used to pivot the conveyor table about a table-normal axis, namely when the cylinders are articulated on axes oriented perpendicular to the conveyor table and can each be acted upon by themselves. If, according to this measure, only one of, for example, two cylinders is loaded, the conveyor table is pivoted in accordance with the direction in which this cylinder is loaded. However, it is necessary to fix the table transversely to its direction of movement in order to avoid uncontrolled movements of the conveyor table. For this purpose, the conveyor table is guided over a pin which engages in a straight guide.
  • At least one support can be raised and lowered independently of the other supports. With these raised supports, when the other supports are lowered, the sheet is supported both on the raised supports and on the conveyor table, which likewise causes the sheet to pivot when the conveyor table or supports move. This pivoting is associated with sliding friction between the sheet and its support points.
  • the conveyor table can be guided in a straight line.
  • the supports can be stored in a carriage or carriage and can be raised and lowered by actuating cylinders.
  • a feed device which essentially consists of a conveyor table 4 with through openings 5 for there can be raised and lowered supports 6, wherein the supports 6 mounted in a carriage 7 can be moved perpendicular to the direction of displacement of the conveyor table 4.
  • the conveyor table 4 is supported on roller beams 8 which are directed transversely to the guide track 1 for the tool slides and are pivotably supported on supports 9 at their end remote from the guide track 1.
  • a cylinder 10 engages, with the aid of which the roller beams 8 can be pivoted, so that the conveyor table 4 guided on the rollers 11 of the roller beam 8 can safely feed the sheet metal 3 over the table 12 to the processing machine and deposit it there for clamping.
  • two cylinders 13 are provided for pushing the feed table 4 back and forth, which are articulated on axes 14 directed perpendicular to the feed table.
  • These axes 14 therefore also provide mobility transverse to the conveying direction of the conveying table 4, in order to enable the conveying table 4 to be pivoted by acting on only one of the two cylinders 13. For this purpose, however, it is necessary to provide an additional guide for the conveyor table 4 in order not to get uncontrolled conveyor table movements.
  • a pin 15 is provided on the underside of the conveyor table 4, which engages in a straight guide 16.
  • the conveyor table 4 is held transversely to its conveying direction during its pivoting against an unwanted displacement.
  • the straight guide 16 does not hinder the conveying movement of the conveying table 4, since it runs in the conveying direction.
  • actuating cylinders 17 are provided in the carriage 7, which can be moved back and forth via rollers 18 on rail pieces 19. Cylinders 20 which can be acted upon on both sides serve to drive the carriage 7.
  • the sheet metal 3 is now to be fed to the processing machine, it is placed on the conveyor table and moved with it by one conveying step against the guide track 1 of the processing machine. If the travel of the cylinders 13, which of course have to be acted upon in parallel for the linear movement of the conveyor table, is not sufficient, the actuating cylinders 17 for the supports 6 are extended, whereby the supports 6 are raised through the through openings 5 of the conveyor table 4 and the sheet metal 3 lift off the conveyor table 4. The conveyor table 4 can therefore be moved back under the sheet 3 to its initial position in order to repeat the conveying step after the support 6 has been lowered. The sheet 3 is thus fed to the processing machine step by step until it has reached the desired position on the table 12 of the processing machine.
  • the conveyor table 4 is not moved and only serves as a tray for the sheet metal moved by the supports 6, which is moved over the raised supports 6 by a corresponding method of the carriage 7 over the conveyor table 4. These conveying steps can be repeated as desired, since the supports 6 can be moved back to their starting position when the sheet is placed on the conveying table 4 below the sheet.
  • pivoting adjustment of the sheet 3 is to act on an actuating cylinder for a support 6a independently of the other actuating cylinders 7, so that the sheet 3 is only raised above the support 6a. If the conveyor table 4 is displaced with such a sheet metal support, the sheet metal 3 is also pivoted. This pivoting movement can also be repeated step by step, so that all possibilities are available for pivoting.
  • the conveying steps need only be repeated in reverse order, so that the feeder device is also suitable for sheet transport by simply reversing.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Attitude Control For Articles On Conveyors (AREA)
  • Specific Conveyance Elements (AREA)

Description

Die Erfindung bezieht sich auf eine Zubringervorrichtung für Blechbearbeitungsmaschinen, bestehend aus zwei zueinander senkrechte Förderrichtungen aufweisenden Fördereinrichtungen, von denen eine Freiräume für den Durchtritt von heb- und senkbaren Auflagern der anderen vor- und zurückbewegbaren Fördereinrichtung bildet.The invention relates to a feeder device for sheet metal working machines, consisting of two conveying devices having mutually perpendicular conveying directions, one of which forms free spaces for the passage of lifting and lowering supports of the other advancing and retracting conveying device.

Das Zuführen von Blechen zu Blechbearbeitungsmaschinen macht vor allem bei größeren Blechtafeln Schwierigkeiten, weil die Blechtafein gegenüber der Bearbeitungsmaschine ausgerichtet werden müssen und eine gerichtete Ablage auf der Zubringervorrichtung im allgemeinen nicht gewährleistet werden kann. Um ein Ausrichten der Bleche sowohl bezüglich ihrer Längs- als auch ihrer Querachse zu ermöglichen, besitzen die Zubringervorrichtungen im allgemeinen zwei Rollgänge mit zwei zueinander senkrechten Förderrichtungen, wobei einer der Rollgänge heb- und senkbar gelagert ist. Damit kann je nach Bedarf wahlweise einer der beiden Rollgänge zum Einsatz kommen, so daß das zu bearbeitende Blech in Längs- und Querrichtung verschoben werden kann. Voraussetzung für ein ordnungsgemäßes Ausrichten dieser bekannten Zubringervorrichtungen ist jedoch, daß die Bleche nicht schräg auf die Zubringervorrichtung gelangen, da ein Verdrehen der Bleche um eine blechnormale Achse mit Hilfe der Zubringervorrichtung nicht möglich ist. Außerdem wird durch den Abstand der Rollen eines Rollganges voneinander eine Mindestgröße für die förderbaren Bleche bestimmt, so daß die bekannten Zubringervorrichtungen dieser Art nicht allen Anforderungen gerecht werden können.The feeding of sheet metal to sheet metal processing machines is particularly difficult with larger sheet metal sheets because the sheet metal sheets have to be aligned with the processing machine and a directed placement on the feeder device cannot generally be guaranteed. In order to enable the sheets to be aligned both with respect to their longitudinal and transverse axes, the feed devices generally have two roller tables with two mutually perpendicular conveying directions, one of the roller tables being mounted so that it can be raised and lowered. This means that one of the two roller tables can be used as required, so that the sheet to be processed can be moved lengthways and crossways. A prerequisite for the correct alignment of these known feeder devices is, however, that the metal sheets do not reach the feeder device at an angle, since it is not possible to rotate the metal sheets around a sheet-normal axis with the aid of the feeder device. In addition, a minimum size for the conveyable sheets is determined by the distance between the rollers of a roller table, so that the known feeder devices of this type cannot meet all requirements.

Eine andere bekannte Möglichkeit, die Bleche quer zu einem Rollgang zu bewegen, besteht darin, die Bleche mit Hilfe von gegen die Blechunterseite anhebbaren Magneten zu verziehen, die im Freiraum zwischen den Rollen des Rollganges angeordnet sind. Um ein Gleiten der Bleche auf den Rollgangsrollen während einer Querbewegung zu vermeiden, müssen zusätzlich Auflager vorgesehen werden, die ebenfalls zwischen den Rollgangsrollen heb- und senkbar gelagert sein müssen. Als weiterer Nachteil kommt diesen Zubringervorrichtungen die Abhängigkeit von der Magnetisierbarkeit der Bleche zu. Zur Vermeidung der Nachteile dieser Zubringervorrichtungen ist es bekannt (DE-A-1 943 068), zwischen den Rollen eines Rollganges einen Querförderer bildende Tragrollen vorzusehen, die nicht nur gehoben und gesenkt, sondern auch über eine schwenkbare Verstellschiene ungleich weit verschoben werden können, so daß das auszurichtende Blech auch verschwenkt werden kann. Nachteilig ist allerdings, daß auch bei dieser bekannten Vorrichtung die zu richtenden Bleche vergleichsweise lang sein müssen, wobei sich eine Mindestlänge von etwa dem dreifachen Rollgangs-Rollenabstand ergibt. Außerdem ist keine genaue Ausrichtung weder in Längs- noch in Querrichtung möglich, da stets mit einem gewissen Schlupf der Rollen bei einer Beschleunigung bzw. Verzögerung gerechnet werden muß. Darüber hinaus ist zu bedenken, daß ungerichtete Bleche nicht geradeaus laufen, weshalb nach jeder Längsbewegung wieder ein Ausrichten in Querrichtung notwendig wird. Ein auf den Rollen eines Rollganges aufliegendes Blech läßt sich ja nicht auf den Rollen festhalten. Schließlich ist eine seitliche Blechbearbeitung im Bereich der Verstelleiste für die Tragrollen nicht möglich, weil die Verstelleiste die Zugänglichkeit behindert.Another known possibility of moving the sheets transversely to a roller table is to pull the sheets with the aid of magnets which can be raised against the underside of the sheet and which are arranged in the free space between the rollers of the roller table. In order to prevent the sheets from sliding on the roller table rollers during a transverse movement, additional supports must be provided, which must also be raised and lowered between the roller table rollers. Another disadvantage of these feeder devices is the dependence on the magnetizability of the sheets. To avoid the disadvantages of these feeder devices, it is known (DE-A-1 943 068) to provide support rollers forming a cross conveyor between the rollers of a roller table, which are not only raised and lowered, but can also be displaced to an unequal extent via a pivotable adjustment rail, so that the sheet to be aligned can also be pivoted. The disadvantage, however, is that the sheets to be straightened must also be comparatively long in this known device, with a minimum length of approximately three times the roller table roller distance. In addition, no precise alignment is possible, neither in the longitudinal nor in the transverse direction, since a certain slippage of the rollers with acceleration or deceleration must always be expected. In addition, it should be borne in mind that non-directional sheets do not run straight, which is why an alignment in the transverse direction is necessary again after each longitudinal movement. A sheet lying on the rollers of a roller table cannot be held on the rollers. Finally, lateral sheet metal processing in the area of the adjustment bar for the idlers is not possible because the adjustment bar impedes accessibility.

Der Erfindung liegt demnach die Aufgabe zugrunde, eine Zubringervorrichtung für Blechbearbeitungsmaschinen der eingangs geschilderten Art so zu verbessern, daß die zu bearbeitenden Bleche in einfacher Weise ohne Beschränkung auf eine Mindestgröße gehandhabt werden können. Darüber hinaus sollen auch Schräglagen korrigiert und auch Schräglagen der Bleche bewußt herbeigeführt werden können.The invention is therefore based on the object of improving a feeder device for sheet metal working machines of the type described at the outset so that the sheets to be processed can be handled in a simple manner without being restricted to a minimum size. In addition, inclined positions should also be corrected and also inclined positions of the sheets can be brought about consciously.

Die Erfindung löst die gestellte Aufgabe dadurch, daß die eine Fördereinrichtung aus einem vor- und zurückbewegbaren Fördertisch mit Durchtrittsöffnungen für die heb- und senkbaren Auflager besteht, die quer zum Fördertisch hin- und herverschiebbar sind.The invention solves this problem in that the one conveyor consists of a forward and backward movable conveyor table with passage openings for the raised and lowered supports, which can be moved back and forth across the conveyor table.

Zur Blechförderung in der einen Förderrichtung wird das zu fördernde Blech auf den Fördertisch abgelegt und mit diesem um eine vorgegebene Strecke mitbewegt. Danach wird das Blech mit den durch die Durchtrittsöffnungen des Fördertisches durchgreifenden Auflagern vom Fördertisch abgehoben, so daß der Fördertisch um die Förderstrecke zurückbewegt und nach dem Absenken der Auflager wieder vorbewegt werden kann. Das zu bearbeitende Blech wird daher schrittweise gefördert, wobei es abwechselnd auf dem Fördertisch und den Auflagern zu liegen kommt. Da zwischen dem Blech einerseits und dem Fördertisch sowie den Auflagern andererseits bei diesem Bewegungsablauf keine Gleitbewegung auftritt, kann das Blech auch sehr schonend und genau gefördert werden.For sheet metal conveying in one conveying direction, the sheet to be conveyed is placed on the conveying table and moved with it by a predetermined distance. Then the sheet metal is lifted off the conveyor table with the supports reaching through the passage openings of the conveyor table, so that the conveyor table can be moved back around the conveyor path and can be moved forward again after the supports have been lowered. The sheet to be machined is therefore conveyed step by step, alternately lying on the conveyor table and the supports. Since there is no sliding movement between the sheet metal on the one hand and the conveyor table and the supports on the other hand during this movement sequence, the sheet can also be conveyed very gently and precisely.

Zur Blechförderung in der anderen Förderrichtung wird der Fördertisch als ruhende Ablage benützt, während die Auflager nach ihrem Anheben über den Fördertisch die Förderbewegung ausführen und in abgesenktem Zustand zurückgeführt werden. Da die Förderbewegungen von Fördertisch und Auflagern durchgeführt werden können, während die jeweils andere Fördereinrichtung zurückgestellt wird, kann das Blech gewissermaßen diagonal gefördert werden, wobei die Förderrichtung von der jeweiligen Größe der Förderschritte der beiden Fördereinrichtungen abhängt.For conveying sheet metal in the other conveying direction, the conveying table is used as a stationary rest, while the supports carry out the conveying movement after being lifted over the conveying table and are returned in the lowered state. Since the conveying movements of the conveying table and supports can be carried out while the other conveying device is being put back, the sheet metal can be conveyed diagonally to a certain extent, the conveying direction depending on the respective size of the conveying steps of the two conveying devices.

Damit das zu bearbetende Blech sicher auf den Tisch der Blechbearbeitungsmaschine gefördert und dort ausgerichtet niedergespannt werden kann, kann der Fördertisch in weiterer Ausbildung der Erfindung an der von der Blechbearbeitungsmaschine abgewandten Seite um eine quer zu seiner Förderrichtung verlaufende, tischparallele Achse schwenkbar gelagert werden, so daß das Blech durch ein Hochschwenken des Fördertisches ohne Behinderung auf dem Tisch der Blechbearbeitungsmaschine abgelegt werden kann. Dabei ist es günstig, wenn der Fördertisch nicht selbst schwenkbar gelagert, sondern auf schwenkbar gelagerten Rollbalken geführt ist. Durch diese Maßnahme wird ein mit dem Fördertisch mitverschiebbares Schwenklager unnötig.So that the sheet to be worked on is safe the table of the sheet metal working machine can be conveyed and aligned there, the conveyor table can be pivoted in a further embodiment of the invention on the side facing away from the sheet metal processing machine about a transverse to its conveying direction, table-parallel axis, so that the sheet by swiveling the conveyor table can be placed on the table of the sheet metal working machine without hindrance. It is advantageous if the conveyor table is not itself pivotally mounted, but is guided on pivoting roller beams. As a result of this measure, a swivel bearing which can be moved along with the conveyor table is unnecessary.

Obwohl der Fördertisch auf verschiedene Art und Weise angetrieben werden kann, ergeben sich durch beidseitig beaufschlagbare Zylinder als Verschiebeantrieb besonders einfache, steuerbare Verhältnisse. Über solche Zylinder läßt sich auch ein Verschwenken des Fördertisches um eine tischnormale Achse erreichen, dann nämlich, wenn die Zylinder an senkrecht zum Fördertisch gerichteten Achsen angelenkt und jeweils für sich beaufschlagbar sind. Wird zufolge dieser Maßnahme nur einer von beispielsweise zwei Zylindern beaufschlagt, so wird der Fördertisch entsprechend der Beaufschlagungsrichtung dieses Zylinders verschwenkt. Dabei ist es aber notwendig, den Tisch quer zu seiner Verschieberichtung festzulegen, um unkontrollierte Fördertischbewegungen zu vermeiden. Zu diesem Zweck wird der Fördertisch über einen in eine Geradführung eingreifenden Zapfen geführt.Although the conveyor table can be driven in different ways, particularly simple, controllable conditions result from cylinders which can be acted on from both sides as a displacement drive. Such cylinders can also be used to pivot the conveyor table about a table-normal axis, namely when the cylinders are articulated on axes oriented perpendicular to the conveyor table and can each be acted upon by themselves. If, according to this measure, only one of, for example, two cylinders is loaded, the conveyor table is pivoted in accordance with the direction in which this cylinder is loaded. However, it is necessary to fix the table transversely to its direction of movement in order to avoid uncontrolled movements of the conveyor table. For this purpose, the conveyor table is guided over a pin which engages in a straight guide.

Mit dem Verschwenken des Fördertisches ist selbstverständlich auch ein Schrägstellen des Bleches oder ein Geraderichten eines schräggestellten Bleches möglich. Das Verschwenken des Fördertisches ist natürlich ebenfalls wiederholt möglich, so daß eine vom gegebenen Schwenkbereich des Fördertisches unabhängige, beliebige Schwenklage für das zu richtende Blech erreicht werden kann.With the pivoting of the conveyor table, it is of course also possible to incline the plate or straighten an inclined plate. The pivoting of the conveyor table is of course also repeatedly possible, so that an arbitrary pivot position for the sheet to be straightened, which is independent of the given pivoting range of the conveyor table, can be achieved.

Eine andere Möglichkeit, die zu fördernden Bleche um eine zum Fördertisch senkrechte Achse zu verdrehen, besteht darin, daß wenigstens ein Auflager unabhängig von den anderen Auflagern heb- und senkbar ist. Mit diesen angehobenen Auflagern wird bei Absenkung der anderen Auflager eine Abstützung des Bleches sowohl auf den angehobenen Auflagern als auch auf dem Fördertisch erzwungen, was bei einer Bewegung von Fördertisch oder Auflagern ebenfalls ein Verschwenken des Bleches zur Folge hat. Dieses Verschwenken ist allerdings mit einer Gleitreibung zwischen dem Blech und seinen Auflagerstellen verbunden. Der Fördertisch kann jedoch geradlinig geführt werden.Another possibility of rotating the sheets to be conveyed about an axis perpendicular to the conveying table is that at least one support can be raised and lowered independently of the other supports. With these raised supports, when the other supports are lowered, the sheet is supported both on the raised supports and on the conveyor table, which likewise causes the sheet to pivot when the conveyor table or supports move. This pivoting is associated with sliding friction between the sheet and its support points. However, the conveyor table can be guided in a straight line.

Schließlich ergeben sich in konstruktiver Hinsicht große Vereinfachungen, wenn die Auflager in einem Schlitten oder Wagen gelagert und durch Stellzylinder gehoben und gesenkt werden können.Finally, there are great simplifications in terms of design if the supports can be stored in a carriage or carriage and can be raised and lowered by actuating cylinders.

In der Zeichnung ist der Erfindungsgegenstand in einem Ausführungsbeispiel schematisch dargestellt. Es zeigt

  • Fig. 1 eine erfindungsgemäße Zubringervorrichtung für eine Blechbearbeitungsmaschine in Seitenansicht,
  • Fig. 2 diese Zubringervorrichtung in Draufsicht
  • Fig. 3 die Lagerung und den Antrieb des Fördertisches der erfindungsgemäßen Zubringervorrichtung in Seitenansicht in einem größeren Maßstab und
  • Fig. 4 eine der Fig. 3 entsprechende Darstellung, die jedoch hinsichtlich der zweiten Fördereinrichtung ergänzt ist.
In the drawing, the subject of the invention is shown schematically in one embodiment. It shows
  • 1 is a side view of a feeder device for a sheet metal working machine,
  • Fig. 2, this feeder device in plan view
  • Fig. 3 shows the storage and drive of the conveyor table of the feeder device according to the invention in side view on a larger scale and
  • Fig. 4 is a representation corresponding to Fig. 3, but which is supplemented with respect to the second conveyor.

Um einer Blechbearbeitungsmaschine, von der aus Übersichtsgründen nur die Führungsbahnen 1 und 2 für die Werkzeugschlitten angedeutet sind, die zu bearbeitenden Bleche 3 in der gewünschten ausgerichteten Lage zuführen zu können, ist eine Zubringervorrichtung vorgesehen, die im wesentlichen aus einem Fördertisch 4 mit Durchtrittsöffnungen 5 für heb-und senkbare Auflager 6 besteht, wobei die in einem Wagen 7 gelagerten Auflager 6 senkrecht zur Verschieberichtung des Fördertisches 4 bewegt werden können.In order to be able to feed the sheets 3 to be processed in the desired aligned position to a sheet metal processing machine, of which only the guide tracks 1 and 2 for the tool slide are indicated, a feed device is provided, which essentially consists of a conveyor table 4 with through openings 5 for there can be raised and lowered supports 6, wherein the supports 6 mounted in a carriage 7 can be moved perpendicular to the direction of displacement of the conveyor table 4.

Wie insbesondere aus Fig. 3 ersichtlich ist, ist der Fördertisch 4 auf Rollbalken 8 abgestützt, die quer zur Führungsbahn 1 für die Werkzeugschlitten gerichtet und an ihrem von der Führungsbahn 1 abgekehrten Ende auf Stützen 9 schwenkbar gelagert sind. Am anderen Ende greift ein Zylinder 10 an, mit dessen Hilfe die Rollbalken 8 verschwenkt werden können, so daß der auf den Rollen 11 des Rollbalkens 8 geführte Fördertisch 4 das Blech 3 sicher über den Tisch 12 der Bearbeitungsmaschine zufördern und dort zum Niederspannen ablegen kann. Zum Vor- und Zurückschieben des Fördertisches 4 sind gemäß dem Ausführungsbeispiel zwei Zylinder 13 vorgesehen, die an senkrecht zum Fördertisch gerichteten Achsen 14 angelenkt sind. Über diese Achsen 14 ist daher auch eine Beweglichkeit quer zur Förderrichtung des Fördertisches 4 gegeben, um durch eine Beaufschlagung von nur einem der beiden Zylinder 13 ein Verschwenken des Fördertisches 4 zu ermöglichen. Hierfür ist es aber notwendig, eine zusätzliche Führung für den Fördertisch 4 vorzusehen, um nicht unkontrollierte Fördertischbewegungen zu erhalten.As can be seen in particular from FIG. 3, the conveyor table 4 is supported on roller beams 8 which are directed transversely to the guide track 1 for the tool slides and are pivotably supported on supports 9 at their end remote from the guide track 1. At the other end, a cylinder 10 engages, with the aid of which the roller beams 8 can be pivoted, so that the conveyor table 4 guided on the rollers 11 of the roller beam 8 can safely feed the sheet metal 3 over the table 12 to the processing machine and deposit it there for clamping. According to the exemplary embodiment, two cylinders 13 are provided for pushing the feed table 4 back and forth, which are articulated on axes 14 directed perpendicular to the feed table. These axes 14 therefore also provide mobility transverse to the conveying direction of the conveying table 4, in order to enable the conveying table 4 to be pivoted by acting on only one of the two cylinders 13. For this purpose, however, it is necessary to provide an additional guide for the conveyor table 4 in order not to get uncontrolled conveyor table movements.

An der Unterseite des Fördertisches 4 ist folglich ein Zapfen 15 vorgesehen, der in eine Geradführung 16 eingreift. Über diesen Zapfen 15 wird der Fördertisch 4 bei seinem Verschwenken gegen eine ungewollte Verschiebung quer zu seiner Förderrichtung festgehalten. Die Geradführung 16 behindert aber die Förderbewegung des Fördertisches 4 nicht, da sie ja in Förderrichtung verläuft.Consequently, a pin 15 is provided on the underside of the conveyor table 4, which engages in a straight guide 16. About this pin 15, the conveyor table 4 is held transversely to its conveying direction during its pivoting against an unwanted displacement. However, the straight guide 16 does not hinder the conveying movement of the conveying table 4, since it runs in the conveying direction.

Zum Heben und Senken der Auflager 6 sind Stellzylinder 17 im Wagen 7 vorgesehen, der über Rollen 18 auf Schienenstücken 19 hin- und herfahrbar ist. Zum Antrieb des Wagens 7 dienen beidseitig beaufschlagbare Zylinder 20.To raise and lower the supports 6, actuating cylinders 17 are provided in the carriage 7, which can be moved back and forth via rollers 18 on rail pieces 19. Cylinders 20 which can be acted upon on both sides serve to drive the carriage 7.

Soll nun das Blech 3 der Bearbeitungsmaschine zugeführt werden, so wird es auf den Fördertisch abgelegt und mit diesem um einen Förderschritt gegen die Führungsbahn 1 der Bearbeitungsmaschine bewegt. Reicht der Stellweg der Zylinder 13, die für die geradlinige Bewegung des Fördertisches selbstverständlich parallel beaufschlagt werden müssen, nicht aus, so werden die Stellzylinder 17 für die Auflager 6 ausgefahren, wodurch die Auflager 6 durch die Durchtrittsöffnungen 5 des Fördertisches 4 angehoben werden und das Blech 3 vom Fördertisch 4 abheben. Der Fördertisch 4 kann demnach unter dem Blech 3 in seine Ausgangslage zurückbewegt werden, um nach dem Absenken der Auflager 6 den Förderschritt zu wiederholen. Das Blech 3 wird somit schrittweise der Bearbeitungsmaschine zugeführt, bis es die gewünschte Lage auf dem Tisch 12 der Bearbeitungsmaschine erreicht hat.If the sheet metal 3 is now to be fed to the processing machine, it is placed on the conveyor table and moved with it by one conveying step against the guide track 1 of the processing machine. If the travel of the cylinders 13, which of course have to be acted upon in parallel for the linear movement of the conveyor table, is not sufficient, the actuating cylinders 17 for the supports 6 are extended, whereby the supports 6 are raised through the through openings 5 of the conveyor table 4 and the sheet metal 3 lift off the conveyor table 4. The conveyor table 4 can therefore be moved back under the sheet 3 to its initial position in order to repeat the conveying step after the support 6 has been lowered. The sheet 3 is thus fed to the processing machine step by step until it has reached the desired position on the table 12 of the processing machine.

Ist eine Verstellung parallel zur Führungsbahn 1 erforderlich, so wird der Fördertisch 4 nicht bewegt und dient lediglich als Ablage für das durch die Auflager 6 bewegte Blech, das über die angehobenen Auflager 6 durch ein entsprechendes Verfahren der Schlitten 7 über den Fördertisch 4 bewegt wird. Diese Förderschritte können beliebig wiederholt werden, da die Auflager 6 bei auf dem Fördertisch 4 abgelegtem Blech unterhalb des Bleches in ihre Ausgangsposition zurückgefahren werden können.If an adjustment parallel to the guideway 1 is required, the conveyor table 4 is not moved and only serves as a tray for the sheet metal moved by the supports 6, which is moved over the raised supports 6 by a corresponding method of the carriage 7 over the conveyor table 4. These conveying steps can be repeated as desired, since the supports 6 can be moved back to their starting position when the sheet is placed on the conveying table 4 below the sheet.

Wird während der Rücklaufbewegung der Auflager 6 der Fördertisch 4 und während der Rücklaufbewegung des Fördertisches der Wagen 7 vorbewegt, so ergibt sich eine kombinierte Förderung für das Blech, das angenähert diagonal bewegt wird. Das Blech 3 kann folglich rasch in die gewünschte Endlage gebracht werden. Über die bereits geschilderte Schwenkmöglichkeit des Fördertisches 4, die ebenfalls schrittweise wiederholt werden kann, ist auch jede Schräglage des Bleches erreichbar. Umgekehrt kann selbstverständlich auch jede schräge Ablage auf dem Fördertisch korrigiert werden.If the conveyor table 4 is moved forward during the return movement of the supports 6 and the carriage 7 is moved forward during the return movement of the conveyor table, this results in a combined conveyance for the sheet metal, which is moved approximately diagonally. The sheet 3 can thus be quickly brought into the desired end position. Any inclined position of the sheet can also be reached via the already described pivoting possibility of the conveyor table 4, which can also be repeated step by step. Conversely, any inclined placement on the conveyor table can of course also be corrected.

Eine andere Möglichkeit zur Schwenkverstellung des Bleches 3 besteht darin, einen Stellzylinder für ein Auflager 6a unabhängig von den übrigen Stellzylindern 7 zu beaufschlagen, so daß das Blech 3 nur über das Auflager 6a angehoben wird. Wird bei einer solchen Blechabstützung der Fördertisch 4 verschoben, so wird das Blech 3 ebenfalls verschwenkt. Auch diese Schwenkbewegung kann schrittweise wiederholt werden, so daß für das Verschwenken alle Möglichkeiten gegeben sind.Another possibility for the pivoting adjustment of the sheet 3 is to act on an actuating cylinder for a support 6a independently of the other actuating cylinders 7, so that the sheet 3 is only raised above the support 6a. If the conveyor table 4 is displaced with such a sheet metal support, the sheet metal 3 is also pivoted. This pivoting movement can also be repeated step by step, so that all possibilities are available for pivoting.

Zum Abtransport des bearbeiteten Bleches brauchen die Förderschritte nur in umgekehrter Reihenfolge wiederholt zu werden, so daß die Zubringervorrichtung durch ein einfaches Umsteuern auch für den Blechtransport geeignet ist.To remove the processed sheet, the conveying steps need only be repeated in reverse order, so that the feeder device is also suitable for sheet transport by simply reversing.

Claims (7)

1. A feeding device for sheet metal working machines, consisting of two conveyors for conveying in directions at right angles to each other, one of said conveyors defining free spaces for the passage of liftable and lowerable supports (6) of the other conveyor, which is movable forwardly and rearwardly, characterized in that said one conveyor consists of a conveyor deck (4), which is movable forwardly and rearwardly and has openings (5) for the passage of the liftable and lowerable supports (6), which are reciprocable transversely to the conveyor table (4).
2. A feeding device according to claim 1, characterized in that on that side which is remote from the sheet metal working machine the conveyor deck (4) is pivoted on an axis (support (9)) which extends transversely to the direction of conveyance of the conveyor deck and is parallel to said table.
3. A feeding device according to claim 1 or 2, characterized in that the conveyor deck (4) is guided on roller-carrying beams (8), which are pivoted (cylinder (10), support (9)).
4. A feeding device according to any of claims 1 to 3, characterized in that the conveyor deck (4) is displaceable by means of double-acting fluid-operable cylinders (13).
5. A feeding device according to claim 4, characterized in that the cylinders (13) are pivoted on axles (14) which extend at right angles to the conveyor tables, each cylinder is indicudually operable, and the conveyor deck (14) is guided by means of a pin (15) extending into a straight track (16).
6. A feeding device according to any of claims 1 to 5, characterized in that the supports (6) are mounted in a slide or carriage (7).
7. A feeding device according to any of claims 1 to 6, characterized in that at least one support (6a) is liftable and lowerable independently of the other supports (6).
EP19800890090 1979-10-02 1980-08-06 Feeding device for sheet metal working machines Expired EP0026755B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AT6423/79 1979-10-02
AT642379A AT361272B (en) 1979-10-02 1979-10-02 FEEDING DEVICE FOR SHEET METAL MACHINING

Publications (2)

Publication Number Publication Date
EP0026755A1 EP0026755A1 (en) 1981-04-08
EP0026755B1 true EP0026755B1 (en) 1983-07-06

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Application Number Title Priority Date Filing Date
EP19800890090 Expired EP0026755B1 (en) 1979-10-02 1980-08-06 Feeding device for sheet metal working machines

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EP (1) EP0026755B1 (en)
AT (1) AT361272B (en)
DE (1) DE3064038D1 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT373512B (en) * 1982-05-19 1984-01-25 Voest Alpine Ag DEVICE FOR FEEDING PLATE-SHAPED WORKPIECES TO A MACHINE TOOL
CN100333831C (en) * 2000-12-22 2007-08-29 日本化药株式会社 Alkane oxidation catalyst, process for producing same, and process for producting oxygen-contg unsaturated compound
CN110103151B (en) * 2019-05-31 2024-03-22 长沙矿冶研究院有限责任公司 Cleaning system and method for cleaning sheet metal by high-pressure water jet blasting descaling

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE7101324U (en) * 1971-05-19 Nielsen H & Son Maskinfabrik A/S Device for twisting sheet metal
DE1099316B (en) * 1954-06-26 1961-02-09 Schloemann Ag Device for turning a sheet metal lying on a roller block field in front of plate shears
DE1943068A1 (en) * 1969-08-25 1971-03-04 Moeller & Neumann Gmbh Directional device for aligning the sheets on a roller table
US4068753A (en) * 1976-03-04 1978-01-17 Continental M.D.M., Inc. Shear front feed system
DE2732689C3 (en) * 1977-07-20 1980-05-08 Haemmerle Ag, Zofingen (Schweiz) Device for positioning sheet metal
CH622755A5 (en) * 1977-08-25 1981-04-30 Masyc Ag

Also Published As

Publication number Publication date
DE3064038D1 (en) 1983-08-11
ATA642379A (en) 1980-07-15
EP0026755A1 (en) 1981-04-08
AT361272B (en) 1981-02-25

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