EP0706844B1 - Device for deep-drawing of sheet metal - Google Patents

Device for deep-drawing of sheet metal Download PDF

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Publication number
EP0706844B1
EP0706844B1 EP95114416A EP95114416A EP0706844B1 EP 0706844 B1 EP0706844 B1 EP 0706844B1 EP 95114416 A EP95114416 A EP 95114416A EP 95114416 A EP95114416 A EP 95114416A EP 0706844 B1 EP0706844 B1 EP 0706844B1
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EP
European Patent Office
Prior art keywords
shuttle
machine column
deep
machine
ring
Prior art date
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Expired - Lifetime
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EP95114416A
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German (de)
French (fr)
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EP0706844A3 (en
EP0706844A2 (en
Inventor
Harald Käsmacher
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Schuler SMG GmbH and Co KG
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Schuler SMG GmbH and Co KG
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Publication of EP0706844A3 publication Critical patent/EP0706844A3/en
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    • 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
    • B21D24/00—Special deep-drawing arrangements in, or in connection with, presses
    • B21D24/04—Blank holders; Mounting means therefor
    • 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
    • B21D24/00—Special deep-drawing arrangements in, or in connection with, presses

Definitions

  • the invention relates to a device for deep drawing of sheet metal, consisting of a machine stand with a Machine table with a sheet holder arranged on it Sheet metal holder ring, an upper tool arranged above it with drawing ring and a drawing stamp that holds the machine table reaches through and during the pulling process in an upward stroke the sheet metal holder ring between sheet metal holder ring and Drawing ring clamped circuit board formed in the upper tool.
  • the invention has for its object a device of the structure mentioned at the beginning with an upwards working drawing stamp with regard to the constructive To simplify the effort and the movements.
  • the upper tool is designed as a shuttle and between the Forming position within the machine stand in which it is aligned with the punch and an ejector position outside the machine stand, in which the drawn part after is ejected below, is movable, and that loading with the boards either in the direction of movement the shuttle from the position opposite the ejector position Side of the machine stand or perpendicular to this direction of movement can take place.
  • Sheet metal holders remain in the device according to the invention and upper tool in position during deep drawing and only the drawing die is moved, you can see on the small stroke of the sheet metal holder.
  • the arrangement of the upper tool on a shuttle will Eject the deep-drawn part and thus the one with it linked movement sequence outside the machine stand relocated and can pull the deep-drawn part directly into an appropriate collection container or on a conveyor are thrown off, so that these movements inside the machine. It can also speed up the work cycle by during the Eject from the opposite side of the machine stand forth or perpendicular to the direction of movement the shuttle a new board for the next thermoforming process is loaded. By minimizing the movements the previous ones within the machine Safety devices and the necessary for this Controls are largely simplified, in part even dropped.
  • the ejector position can - depending on the spatial Conditions or loading options, as well as with Consideration of the tool change - on the side or behind the machine.
  • a particularly advantageous embodiment of the invention is characterized by the fact that the shuttle has two upper tools has, one of which is always in the forming position inside the machine stand, the other in one of two ejector positions on either side of the machine stand and both upper tools alternately are moved into the forming position, and that the Load with the boards transverse to the direction of movement of the Shuttle takes place.
  • the performance per Almost double the time unit of a deep-drawing device by one deep drawing and one ejection process can take place simultaneously.
  • Another acceleration can be achieved in that during the process the upper tools the device is loaded.
  • the forces can be easily within of the machine stand while guiding the shuttle only minor outside the machine stand Has to absorb forces that can easily be supported by a prop can be picked up on the machine stand.
  • the ejector position from top to bottom Ejector cylinder is provided on the shuttle guide attached and the guide with its ejector and reaches through the upper tool.
  • the ejector can eject Thermoformed part directly into one below Collection container, on a pallet or a conveyor be dropped.
  • Another preferred embodiment is distinguished characterized in that the device for forming a tandem arrangement a second device with the same structure Distance is assigned and the feeding of the boards from the space between the two devices and ejecting of the deep-drawn parts on those turned away from each other Side of the device is done.
  • the performance can be achieved with such a tandem arrangement double the device in the smallest space. You can also use both devices if necessary different deep-drawn parts manufactured at the same time become.
  • a single hydraulic unit can be used for the drive be provided.
  • the device has a machine stand 1, e.g. in Form of a welded construction, with an upper part 2 and a lower part 3.
  • a machine stand e.g. in Form of a welded construction
  • the piston rod 4 carries the punch 5.
  • the piston rod 4 is guided in a machine table 6, the is an integral part of the machine stand 1.
  • the sheet metal holder 7 rests with the Sheet metal holder ring 8, the pressure medium cylinder 9 in Machine table 1 is driven.
  • the guide 11 is in the upper part 2 of the machine stand 1 a shuttle 10 arranged to the outside of the Machine extends, the projecting part over a Support 12 supported on the upper part 2 of the machine stand 1 is.
  • the upper tool 13 is on the shuttle with the Drawing ring guided horizontally.
  • an ejector cylinder 14 arranged, the ejector rod 15 through the guide 11 is retractable into the tool 13.
  • the pressure medium cylinders 9 down the sheet metal holder 7, so that the upper tool 13 together with the deep-drawn part from the position shown in Figure 3 to the ejector position can be moved according to Figure 1.
  • the ejector cylinder 14 actuates and throws the ejector rod 15 the deep-drawn part 16 downwards.
  • a recording e.g. one container, one Pallet or a conveyor can be arranged, the Thermoformed part.
  • the device 1 to 3 designed as a tandem construction be.
  • the guide 11 projects above the machine stand 1 also to the other side and is too an ejector cylinder 14 is arranged there.
  • On the shuttle 10 are two top tools 13 next to each other with one Draw ring arranged and the shuttle runs over the forming station and both ejector positions, so that at the same time a deep-drawing stroke and an ejector stroke are carried out can be.
  • FIG 4 are two devices 20, 21 of the previously described construction arranged side by side, which in Alternate cycle work.
  • the integrated in the machine stand 1 Guideways 11 of the shuttle 10 run after opposite sides. From the space between the Devices 20, 21 alternate the boards corresponding to the arrows 22, 23 of that device fed, whose upper tool is just in the Ejector position is while the other device carries out the deep-drawing stroke at the same time.
  • the upper tools with the molded deep-drawn parts are followed by the shuttle along the guideways 11 opposite sides in the ejector position hazards.
  • the ejected deep-drawn parts are made accordingly the directional arrows 24, 25 transported away.
  • Hydraulic unit can be provided, for example in the foundation pit between the two devices and the hydraulic cylinder of the deep-drawing stamp both devices supplied.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Shaping Metal By Deep-Drawing, Or The Like (AREA)
  • Punching Or Piercing (AREA)
  • Blow-Moulding Or Thermoforming Of Plastics Or The Like (AREA)
  • Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)
  • Press Drives And Press Lines (AREA)

Abstract

The appts. for deep drawing of sheet metal comprises a machine frame (1), a table (6) provided with a blank holder (7) incorporating a holder ring (8), a top tool (13) with drawing ring, and a drawing punch (5) which passes through the table (6) and forces the blank clamped between the ring (8) and the drawing ring into the top tool. The top tool takes the form of a shuttle (10) which is displaceable between the drawing position within the machine frame (1) - in which it is aligned with the drawing punch (5) - and the ejection position outside the machine frame, where the workpiece (16) is ejected downwards. Loading of the shuttle with blanks takes place on the side of the machine frame opposite to the ejection position, or at a right angle to this position.

Description

Die Erfindung betrifft eine Vorrichtung zum Tiefziehen von Blech, bestehend aus einem Maschinenständer mit einem Maschinentisch, einem darauf angeordneten Blechhalter mit Blechhalterring, einem darüber angeordneten Oberwerkzeug mit Ziehring und einem Ziehstempel, der den Maschinentisch durchgreift und beim Ziehvorgang in einem Aufwärtshub die Blechhalterring zwischen Blechhalterring und Ziehring eingespannte Platine in das Oberwerkzeug umformt.The invention relates to a device for deep drawing of sheet metal, consisting of a machine stand with a Machine table with a sheet holder arranged on it Sheet metal holder ring, an upper tool arranged above it with drawing ring and a drawing stamp that holds the machine table reaches through and during the pulling process in an upward stroke the sheet metal holder ring between sheet metal holder ring and Drawing ring clamped circuit board formed in the upper tool.

Mechanische Tiefziehvorrichtungen sind in einer Vielzahl von Ausführungsformen bekannt, wobei die eigentliche Umformbewegung in der Regel von oben nach unten erfolgt. Im Stand der Technik finden sich aber auch solche mit umgekehrter Arbeitsweise. Für das Auswerfen des Tiefziehteils müssen innerhalb der Maschine entsprechende Bewegungsabläufe verwirklicht werden und der dafür notwendige Freiraum vorhanden sein. Das ausgeworfene Tiefziehteil muß manuell oder mit Handhabungsgeräten entnommen werden. Mechanical deep-drawing devices are in a variety known from embodiments, the actual Forming movement usually takes place from top to bottom. In the prior art, however, there are also such reverse way of working. For ejecting the deep-drawn part must have appropriate movements within the machine be realized and the necessary There should be space. The ejected deep-drawn part must be removed manually or with handling devices.

Dies gilt auch für sogenannte Transferpressen, bei denen auf einem horizontal verfahrbaren Tisch zwei Unterwerkzeuge nebeneinander angeordnet sind und der Tiefziehstempel von oben nach unten arbeitet. Die Unterwerkzeuge werden mittels des Tischs zwischen der Tiefziehstation in der Presse und einer Auswerfer- und Beladeposition außerhalb der Presse verfahren. Auch hier müssen die Tiefziehteile mit einem von unten nach oben wirkenden Auswerfer entformt und nach oben abgenommen und schließlich zur Seite verbracht werden, um in einen Transportbehälter oder an eine Transporteinrichtung übergeben zu werden. Zudem sind aufgrund der Unfallverhütungsvorschriften aufwendige Steuerungen und Sicherheitseinrichtungen notwendig.This also applies to so-called transfer presses, where two lower tools on a horizontally movable table are arranged side by side and the deep-drawing stamp works from top to bottom. The lower tools are placed between the thermoforming station in the press and an ejector and loading position outside proceed to the press. Here too, the deep-drawn parts with a bottom-up ejector demolded and removed upwards and finally to Side to be placed in a shipping container or to be handed over to a transport facility. Also due to accident prevention regulations elaborate controls and safety devices necessary.

Der Erfindung liegt die Aufgabe zugrunde, eine Vorrichtung des eingangs genannten Aufbaus mit einem nach oben arbeitenden Ziehstempel hinsichtlich des konstruktiven Aufwandes und der Bewegungsabläufe zu vereinfachen.The invention has for its object a device of the structure mentioned at the beginning with an upwards working drawing stamp with regard to the constructive To simplify the effort and the movements.

Diese Aufgabe wird erfindungsgemäß dadurch gelöst, daß das Oberwerkzeug als Shuttle ausgebildet und zwischen der Umformposition innerhalb des Maschinenständers, in der es mit dem Ziehstempel fluchtet, und einer Auswerferposition außerhalb des Maschinenständers, in der das Ziehteil nach unten ausgeworfen wird, verfahrbar ist, und daß das Beladen mit den Platinen entweder in Bewegungsrichtung des Shuttle von der der Auswerferposition gegenüberliegenden Seite des Maschinenständers oder senkrecht zu dieser Bewegungsrichtung erfolgten kann.This object is achieved in that the upper tool is designed as a shuttle and between the Forming position within the machine stand in which it is aligned with the punch and an ejector position outside the machine stand, in which the drawn part after is ejected below, is movable, and that loading with the boards either in the direction of movement the shuttle from the position opposite the ejector position Side of the machine stand or perpendicular to this direction of movement can take place.

Bei der erfindungsgemäßen Vorrichtung verbleiben Blechhalter und Oberwerkzeug beim Tiefziehen in ihrer Position und es wird lediglich der Ziehstempel bewegt, sieht man von dem geringen Hub des Blechhalters ab. Durch die Anordnung des Oberwerkzeugs an einem Shuttle wird das Auswerfen des Tiefziehteils und damit auch der hiermit verknüpfte Bewegungsablauf nach außerhalb des Maschinenständers verlegt und kann das Tiefziehteil direkt in einen entsprechenden Sammelbehälter oder auf einen Förderer abgeworfen werden, so daß diese Bewegungsabläufe innerhalb der Maschine entfallen. Ferner läßt sich dadurch der Arbeitszyklus beschleunigen, indem während des Auswerfens von der gegenüberliegenden Seite des Maschinenständers her oder aber senkrecht zur Bewegungsrichtung des Shuttle eine neue Platine für den nächsten Tiefziehvorgang geladen wird. Durch die Minimierung der Bewegungsabläufe innerhalb der Maschine können die bisherigen Sicherheitseinrichtungen und die hierfür notwendigen Steuerungen weitgehend vereinfacht werden, teilweise sogar entfallen.Sheet metal holders remain in the device according to the invention and upper tool in position during deep drawing and only the drawing die is moved, you can see on the small stroke of the sheet metal holder. Through the The arrangement of the upper tool on a shuttle will Eject the deep-drawn part and thus the one with it linked movement sequence outside the machine stand relocated and can pull the deep-drawn part directly into an appropriate collection container or on a conveyor are thrown off, so that these movements inside the machine. It can also speed up the work cycle by during the Eject from the opposite side of the machine stand forth or perpendicular to the direction of movement the shuttle a new board for the next thermoforming process is loaded. By minimizing the movements the previous ones within the machine Safety devices and the necessary for this Controls are largely simplified, in part even dropped.

Die Auswerferposition kann sich - je nach den räumlichen Gegebenheiten bzw. den Belademöglichkeiten, wie auch mit Rücksicht auf den Werkzeugwechsel - seitlich oder hinter der Maschine befinden.The ejector position can - depending on the spatial Conditions or loading options, as well as with Consideration of the tool change - on the side or behind the machine.

Eine besonders vorteilhafte Ausführungsform der Erfindung zeichnet sich dadurch aus, daß der Shuttle zwei Oberwerkzeuge aufweist, von denen sich stets eines in der Umformposition innerhalb des Maschinenständers, das andere in einer von zwei Auswerferpositionen beiderseits des Maschinenständers befindet und beide Oberwerkzeuge wechselweise in die Umformposition verbahr sind, und daß das Beladen mit den Platinen quer zur Bewegungsrichtung des Shuttle erfolgt.A particularly advantageous embodiment of the invention is characterized by the fact that the shuttle has two upper tools has, one of which is always in the forming position inside the machine stand, the other in one of two ejector positions on either side of the machine stand and both upper tools alternately are moved into the forming position, and that the Load with the boards transverse to the direction of movement of the Shuttle takes place.

Mit dieser Ausführungsform läßt sich die Leistung pro Zeiteinheit einer Tiefziehvorrichtung annähernd verdoppeln, indem jeweils ein Tiefzieh- und ein Auswerfvorgang gleichzeitig stattfinden können. Eine weitere Beschleunigung läßt sich dadurch erreichen, daß während des Verfahrens der Oberwerkzeuge die Vorrichtung geladen wird.With this embodiment, the performance per Almost double the time unit of a deep-drawing device, by one deep drawing and one ejection process can take place simultaneously. Another acceleration can be achieved in that during the process the upper tools the device is loaded.

Eine konstruktiv besonders vorteilhafte Ausführung ergibt sich dann, wenn die Shuttle-Führung für das oder die Oberwerkzeug(e) integraler Bestandteil des Maschinenständers ist.A particularly advantageous design results then when the shuttle tour for that or that Upper tool (s) an integral part of the machine stand is.

Durch die Integrierung der Shuttle-Führung in den Maschinenständer, beispielsweise im Rahmen einer Schweißkonstruktion, lassen sich die Kräfte problemlos innerhalb des Maschinenständers aufnehmen, während die Shuttle-Führung außerhalb des Maschinenständers lediglich geringe Kräfte aufzunehmen hat, die problemlos über eine Stütze am Maschinenständer aufgenommen werden können.By integrating the shuttle guide into the machine stand, for example as part of a welded construction, the forces can be easily within of the machine stand while guiding the shuttle only minor outside the machine stand Has to absorb forces that can easily be supported by a prop can be picked up on the machine stand.

Für den Antrieb des Blechhalters sind am Maschinentisch mehrere Druckmittelzylinder angeordnet, die nur auf den Blechhalter wirken.For the drive of the sheet metal holder are on the machine table arranged several pressure medium cylinders that only on the Sheet holder act.

Ferner ist gemäß einer Ausführungsform vorgesehen, daß an der Auswerferposition ein von oben nach unten wirkender Auswerferzylinder vorgesehen ist, der an der Shuttle-Führung angebracht ist und mit seinem Auswerfer die Führung und das Oberwerkzeug durchgreift.It is further provided according to an embodiment that the ejector position from top to bottom Ejector cylinder is provided on the shuttle guide attached and the guide with its ejector and reaches through the upper tool.

Wie schon angedeutet, kann das vom Auswerfer ausgestoßene Tiefziehteil unmittelbar in einen darunter stehenden Sammelbehälter, auf einer Palette oder einen Förderer abgeworfen werden. As already indicated, the ejector can eject Thermoformed part directly into one below Collection container, on a pallet or a conveyor be dropped.

Eine weiterhin bevorzugte Ausführungsform zeichnet sich dadurch aus, daß der Vorrichtung zur Bildung einer Tandemanordnung eine zweite Vorrichtung gleichen Aufbaus mit Abstand zugeordnet ist und die Zuführung der Platinen von dem Raum zwischen den beiden Vorrichtungen und das Auswerfen der Tiefziehteile an den einander abgekehrten Seiten der Vorrichtung erfolgt.Another preferred embodiment is distinguished characterized in that the device for forming a tandem arrangement a second device with the same structure Distance is assigned and the feeding of the boards from the space between the two devices and ejecting of the deep-drawn parts on those turned away from each other Side of the device is done.

Mit einer solchen Tandemanordnung läßt sich die Leistung der Vorrichtung bei geringstem Platzbedarf verdoppeln. Auch können auf beiden Vorrichtungen gegebenenfalls verschiedene Tiefziehteile gleichzeitig hergestellt werden. Für den Antrieb kann ein einziges Hydraulikaggregat vorgesehen sein.The performance can be achieved with such a tandem arrangement double the device in the smallest space. You can also use both devices if necessary different deep-drawn parts manufactured at the same time become. A single hydraulic unit can be used for the drive be provided.

Nachstehend ist die Erfindung anhand eines in der Zeichnung wiedergegebenen Ausführungsbeispiels beschrieben. Hierbei zeigen jeweils im schematischen Längsschnitt

Figur 1:
die Vorrichtung in der Auswerferposition;
Figur 2:
die Vorrichtung in einer Zwischenstellung vor dem Tiefziehen;
Figur 3:
die Vorrichtung in der Umformposition
und in schematischer Draufsicht
Figur 4:
eine Tandemanordnung.
The invention is described below using an exemplary embodiment shown in the drawing. Each shows a schematic longitudinal section
Figure 1:
the device in the ejector position;
Figure 2:
the device in an intermediate position before deep drawing;
Figure 3:
the device in the forming position
and in a schematic top view
Figure 4:
a tandem arrangement.

Die Vorrichtung weist einen Maschinenständer 1, z.B. in Form einer Schweißkonstruktion, mit einem Oberteil 2 und einem Unterteil 3 auf. In dem Unterteil 3 ist ein nicht gezeigter, doppeltwirkender Hydraulikzylinder angeordnet, dessen Kolbenstange 4 den Ziehstempel 5 trägt. Die Kolbenstange 4 ist in einem Maschinentisch 6 geführt, der integraler Bestandteil des Maschinenständers 1 ist. Auf dem Maschinentisch 6 ruht der Blechhalter 7 mit dem Blechhalterring 8, der durch Druckmittelzylinder 9 im Maschinentisch 1 angetrieben ist.The device has a machine stand 1, e.g. in Form of a welded construction, with an upper part 2 and a lower part 3. In the lower part 3 there is no shown, double-acting hydraulic cylinder arranged, the piston rod 4 carries the punch 5. The piston rod 4 is guided in a machine table 6, the is an integral part of the machine stand 1. On the machine table 6, the sheet metal holder 7 rests with the Sheet metal holder ring 8, the pressure medium cylinder 9 in Machine table 1 is driven.

Im Oberteil 2 des Maschinenständers 1 ist die Führung 11 eines Shuttle 10 angeordnet, die sich nach außerhalb der Maschine erstreckt, wobei der auskragende Teil über eine Stütze 12 am Oberteil 2 des Maschinenständers 1 abgestützt ist. Am Shuttle ist das Oberwerkzeug 13 mit dem Ziehring horizontal verfahrbar geführt. Ferner ist an dem auskragenden Teil der Führung 11 ein Auswerferzylinder 14 angeordnet, dessen Auswerferstange 15 durch die Führung 11 in das Werkzeug 13 einfahrbar ist.The guide 11 is in the upper part 2 of the machine stand 1 a shuttle 10 arranged to the outside of the Machine extends, the projecting part over a Support 12 supported on the upper part 2 of the machine stand 1 is. The upper tool 13 is on the shuttle with the Drawing ring guided horizontally. Furthermore, on the projecting part of the guide 11 is an ejector cylinder 14 arranged, the ejector rod 15 through the guide 11 is retractable into the tool 13.

In der in Figur 1 wiedergegebenen Stellung wird die Vorrichtung entsprechend dem angedeuteten Pfeil von rechts mit der Platine beladen, die auf dem Blechhalterring 8 abgelegt wird. Anschließend fährt das Oberwerkzeug 13 aus der in Figur 1 gezeigten Position in die Position gemäß Figur 2. Die Platine befindet sich zwischen Oberwerkzeug bzw. Ziehring und Blechhalterring 8. Daraufhin werden die Druckmittelzylinder 9 im Maschinentisch 6 beaufschlagt, so daß der Blechhalter 7 in die in Figur 3 gezeigte Position angehoben wird und die Platine zwischen Blechhalterring und Ziehring eingespannt ist. Anschließend fährt der Ziehstempel nach oben und formt die Platine in das Oberwerkzeug 13 ein. Nach Abschluß des Tiefziehhubs wird der Ziehstempel 5 nach unten verfahren, bis er von dem Oberwerkzeug freikommt. Gleichzeitig fahren die Druckmittelzylinder 9 den Blechhalter 7 nach unten, so daß das Oberwerkzeug 13 zusammen mit dem Tiefziehteil aus der in Figur 3 gezeigten Position in die Auswerferposition gemäß Figur 1 verfahren werden können. Hat das Oberwerkzeug 13 die Position erreicht, wird der Auswerferzylinder 14 betätigt und wirft die Auswerferstange 15 das Tiefziehteil 16 nach unten aus. Unterhalb der Auswerferposition kann eine Aufnahme, z.B. ein Behälter, eine Palette oder auch ein Förderer angeordnet sein, der das Tiefziehteil aufnimmt.In the position shown in Figure 1 Device according to the arrow indicated by load on the right with the board on the sheet metal holder ring 8 is filed. The upper tool then moves 13 from the position shown in Figure 1 to the position according to Figure 2. The board is located between the upper tool or drawing ring and sheet metal holder ring 8 the pressure medium cylinders 9 in the machine table 6 applied so that the sheet holder 7 in the in Figure 3 position shown is raised and the board between Sheet metal ring and drawing ring is clamped. Subsequently the punch moves up and forms the board into the upper tool 13. After completing the deep-drawing stroke the punch 5 is moved down until he gets free of the upper tool. Drive at the same time the pressure medium cylinders 9 down the sheet metal holder 7, so that the upper tool 13 together with the deep-drawn part from the position shown in Figure 3 to the ejector position can be moved according to Figure 1. Has the Upper tool 13 reaches the position, the ejector cylinder 14 actuates and throws the ejector rod 15 the deep-drawn part 16 downwards. Below the ejector position can a recording, e.g. one container, one Pallet or a conveyor can be arranged, the Thermoformed part.

In einer abgewandelten Ausführung kann die Vorrichtung nach Fig. 1 bis 3 als Tandemkonstruktion ausgebildet sein. In diesem Fall überragt die Führung 11 den Maschinenständer 1 auch nach der anderen Seite und ist auch dort ein Auswerferzylinder 14 angeordnet. An dem Shuttle 10 sind nebeneinander zwei Oberwerkzeuge 13 mit je einem Ziehring angeordnet und der Shuttle überfährt die Umformstation und beide Auswerferpositionen, so daß gleichzeitig ein Tiefziehhub und ein Auswerferhub durchgeführt werden können.In a modified version, the device 1 to 3 designed as a tandem construction be. In this case, the guide 11 projects above the machine stand 1 also to the other side and is too an ejector cylinder 14 is arranged there. On the shuttle 10 are two top tools 13 next to each other with one Draw ring arranged and the shuttle runs over the forming station and both ejector positions, so that at the same time a deep-drawing stroke and an ejector stroke are carried out can be.

In Figur 4 sind zwei Vorrichtungen 20, 21 des zuvor geschilderten Aufbaus nebeneinander angeordnet, die im Wechseltakt arbeiten. Die in den Maschinenständer 1 integrierten Führungsbahnen 11 des Shuttle 10 verlaufen nach entgegengesetzten Seiten. Aus dem Raum zwischen den Vorrichtungen 20, 21 werden die Platinen wechselweise entsprechend den Pfeilen 22, 23 jeweils derjenigen Vorrichtung zugeführt, deren Oberwerkzeug sich gerade in der Auswerferposition befindet, während die andere Vorrichtung im gleichen Zeitpunkt den Tiefziehhub durchführt. Die Oberwerkzeuge mit den eingeformten Tiefziehteilen werden mit dem Shuttle entlang der Führungsbahnen 11 nach jeweils entgegengesetzten Seiten in die Auswerferposition gefahren. Die ausgeworfenen Tiefziehteile werden entsprechend den Richtungspfeilen 24, 25 abtransportiert. Bei dieser Ausführung kann als Antrieb ein einziges Hydraulikaggregat vorgesehen sein, das sich beispielsweise in der Fundamentgrube zwischen den beiden Vorrichtungen befindet und die Hydraulikzylinder der den Tiefziehstempel beider Vorrichtungen versorgt.In Figure 4 are two devices 20, 21 of the previously described construction arranged side by side, which in Alternate cycle work. The integrated in the machine stand 1 Guideways 11 of the shuttle 10 run after opposite sides. From the space between the Devices 20, 21 alternate the boards corresponding to the arrows 22, 23 of that device fed, whose upper tool is just in the Ejector position is while the other device carries out the deep-drawing stroke at the same time. The upper tools with the molded deep-drawn parts are followed by the shuttle along the guideways 11 opposite sides in the ejector position hazards. The ejected deep-drawn parts are made accordingly the directional arrows 24, 25 transported away. In this version, a single drive can be used Hydraulic unit can be provided, for example in the foundation pit between the two devices and the hydraulic cylinder of the deep-drawing stamp both devices supplied.

Claims (6)

  1. Device for the deep drawing of sheet metal, comprising a machine column (1) with a machine table (6), a blank holder (7) placed thereon and having a blank holder ring (8), an upper die (13) placed above the same and having a draw ring and a drawing punch (5), which passes through the machine table (6) and during the drawing process in an upward stroke works the sheet bar fixed between the blank holder ring (8) and draw ring in the upper die (13), characterized in that the upper die (13) is constructed as a shuttle (10) and is displaceable between the working position within the machine column (1), where it is aligned with the drawing punch (5), and an ejection position outside the machine column, where the drawn part (16) is ejected downwards, and that the loading with the sheet bars can take place either in the movement direction of the shuttle (10) from the side of the machine column (1) opposite to the ejection position or perpendicular to said movement direction.
  2. Device according to claim 1, characterized in that the shuttle (10) has two upper dies (13), whereof one is always in the working position within the machine column (1) and the other in one of two ejection positions on either side of the machine column and both upper dies can be moved in alternating manner into the working position and that loading with the sheet bars can take place transversely to the shuttle movement direction.
  3. Device according to claim 1 and 2, characterized in that the shuttle guide (11) for the upper die or dies is an integral component of the machine column (1).
  4. Device according to one of the claims 1 to 3, characterized in that several pressure cylinders (9) as a drive for the blank holder (7) are placed on the machine column (6).
  5. Device according to one of the claims 1 to 4, characterized in that at the ejection position is provided an ejector cylinder (14) acting from top to bottom and which is fitted to the shuttle guide (11) and whose ejector (15) passes through the guide (11) and the upper die (13).
  6. Device according to one of the claims 1 to 5, characterized in that for the formation of a tandem arrangement a second device having the same construction is associated in spaced manner with the first device and the supply of sheet bars can take place from the area between the two devices and the ejection of the deep drawn parts at the remote sides of the devices.
EP95114416A 1994-10-11 1995-09-14 Device for deep-drawing of sheet metal Expired - Lifetime EP0706844B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4436273 1994-10-11
DE4436273A DE4436273A1 (en) 1994-10-11 1994-10-11 Deep drawing of sheet metal

Publications (3)

Publication Number Publication Date
EP0706844A2 EP0706844A2 (en) 1996-04-17
EP0706844A3 EP0706844A3 (en) 1996-08-07
EP0706844B1 true EP0706844B1 (en) 1999-08-11

Family

ID=6530465

Family Applications (1)

Application Number Title Priority Date Filing Date
EP95114416A Expired - Lifetime EP0706844B1 (en) 1994-10-11 1995-09-14 Device for deep-drawing of sheet metal

Country Status (7)

Country Link
EP (1) EP0706844B1 (en)
JP (1) JPH08197155A (en)
CN (1) CN1062790C (en)
AT (1) ATE183120T1 (en)
DE (2) DE4436273A1 (en)
ES (1) ES2136779T3 (en)
TW (1) TW283101B (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19607257C2 (en) * 1996-02-27 1999-11-04 Hydrap Pressen Maschinenbau Hydraulic sheet metal press
DE19904888C1 (en) * 1999-02-06 2000-08-03 Thyssenkrupp Ind Ag Machine for stamping sheet metal plates has a transport system which also acts as a tool change unit with a suspended coupling to hold the upper and lower dies for transfer to a holding plate on a lifting mechanism

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE407175C (en) * 1924-12-18 Richard Creuzburg Friction press
US2176543A (en) * 1936-11-19 1939-10-17 Murray Corp Shuttle feed for presses
DE852487C (en) * 1944-02-13 1952-10-16 Schloemann Ag Device to facilitate the removal of trimmed workpieces
US2713901A (en) * 1950-09-19 1955-07-26 Wales Strippit Corp Apparatus for clearing punched blanks from a punching assembly
DE2913439A1 (en) * 1979-04-04 1980-10-16 Schoen & Cie Gmbh Power press with continuous strip feed - has belt conveyor for removal of punched components
DE2944045A1 (en) * 1979-10-31 1981-05-14 Buhrke Industries, Inc., Arlington Heights, Ill. Quick-change unit for heavy die set - has hydraulic jacks to lift die shoe from press bed for access to tooling
DE4028425A1 (en) * 1990-09-07 1992-03-12 Alcoa Gmbh Verpackwerke Prodn. of closures by deep drawing of circular blanks - involves using compressed air to eject finished closures from tools

Also Published As

Publication number Publication date
CN1128686A (en) 1996-08-14
JPH08197155A (en) 1996-08-06
DE4436273A1 (en) 1996-04-18
TW283101B (en) 1996-08-11
EP0706844A3 (en) 1996-08-07
CN1062790C (en) 2001-03-07
ES2136779T3 (en) 1999-12-01
ATE183120T1 (en) 1999-08-15
DE59506575D1 (en) 1999-09-16
EP0706844A2 (en) 1996-04-17

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